YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | BlueZ - Bluetooth protocol stack for Linux |
| 3 | Copyright (C) 2000-2001 Qualcomm Incorporated |
Gustavo F. Padovan | 590051d | 2011-12-18 13:39:33 -0200 | [diff] [blame] | 4 | Copyright (C) 2011 ProFUSION Embedded Systems |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | |
| 6 | Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License version 2 as |
| 10 | published by the Free Software Foundation; |
| 11 | |
| 12 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 13 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 14 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. |
| 15 | IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 16 | CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES |
| 17 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 18 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 20 | |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 21 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
| 22 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | SOFTWARE IS DISCLAIMED. |
| 24 | */ |
| 25 | |
| 26 | /* Bluetooth HCI core. */ |
| 27 | |
Gustavo Padovan | 8c520a5 | 2012-05-23 04:04:22 -0300 | [diff] [blame] | 28 | #include <linux/export.h> |
Sasha Levin | 3df92b3 | 2012-05-27 22:36:56 +0200 | [diff] [blame] | 29 | #include <linux/idr.h> |
Marcel Holtmann | 611b30f | 2009-06-08 14:41:38 +0200 | [diff] [blame] | 30 | #include <linux/rfkill.h> |
Marcel Holtmann | baf27f6 | 2013-10-16 03:28:55 -0700 | [diff] [blame] | 31 | #include <linux/debugfs.h> |
Johan Hedberg | 99780a7 | 2014-02-18 10:40:07 +0200 | [diff] [blame] | 32 | #include <linux/crypto.h> |
Marcel Holtmann | 4721983 | 2013-10-17 17:24:15 -0700 | [diff] [blame] | 33 | #include <asm/unaligned.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | |
| 35 | #include <net/bluetooth/bluetooth.h> |
| 36 | #include <net/bluetooth/hci_core.h> |
Johan Hedberg | 4bc58f5 | 2014-05-20 09:45:47 +0300 | [diff] [blame] | 37 | #include <net/bluetooth/l2cap.h> |
Marcel Holtmann | af58925 | 2014-07-01 14:11:20 +0200 | [diff] [blame] | 38 | #include <net/bluetooth/mgmt.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | |
Johan Hedberg | 970c4e4 | 2014-02-18 10:19:33 +0200 | [diff] [blame] | 40 | #include "smp.h" |
| 41 | |
Marcel Holtmann | b78752c | 2010-08-08 23:06:53 -0400 | [diff] [blame] | 42 | static void hci_rx_work(struct work_struct *work); |
Gustavo F. Padovan | c347b76 | 2011-12-14 23:53:47 -0200 | [diff] [blame] | 43 | static void hci_cmd_work(struct work_struct *work); |
Gustavo F. Padovan | 3eff45e | 2011-12-15 00:50:02 -0200 | [diff] [blame] | 44 | static void hci_tx_work(struct work_struct *work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | /* HCI device list */ |
| 47 | LIST_HEAD(hci_dev_list); |
| 48 | DEFINE_RWLOCK(hci_dev_list_lock); |
| 49 | |
| 50 | /* HCI callback list */ |
| 51 | LIST_HEAD(hci_cb_list); |
| 52 | DEFINE_RWLOCK(hci_cb_list_lock); |
| 53 | |
Sasha Levin | 3df92b3 | 2012-05-27 22:36:56 +0200 | [diff] [blame] | 54 | /* HCI ID Numbering */ |
| 55 | static DEFINE_IDA(hci_index_ida); |
| 56 | |
Marcel Holtmann | 899de76 | 2014-07-11 05:51:58 +0200 | [diff] [blame] | 57 | /* ----- HCI requests ----- */ |
| 58 | |
| 59 | #define HCI_REQ_DONE 0 |
| 60 | #define HCI_REQ_PEND 1 |
| 61 | #define HCI_REQ_CANCELED 2 |
| 62 | |
| 63 | #define hci_req_lock(d) mutex_lock(&d->req_lock) |
| 64 | #define hci_req_unlock(d) mutex_unlock(&d->req_lock) |
| 65 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | /* ---- HCI notifications ---- */ |
| 67 | |
Marcel Holtmann | 6516455 | 2005-10-28 19:20:48 +0200 | [diff] [blame] | 68 | static void hci_notify(struct hci_dev *hdev, int event) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | { |
Marcel Holtmann | 040030e | 2012-02-20 14:50:37 +0100 | [diff] [blame] | 70 | hci_sock_dev_event(hdev, event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | } |
| 72 | |
Marcel Holtmann | baf27f6 | 2013-10-16 03:28:55 -0700 | [diff] [blame] | 73 | /* ---- HCI debugfs entries ---- */ |
| 74 | |
Marcel Holtmann | 4b4148e | 2013-10-19 07:09:12 -0700 | [diff] [blame] | 75 | static ssize_t dut_mode_read(struct file *file, char __user *user_buf, |
| 76 | size_t count, loff_t *ppos) |
| 77 | { |
| 78 | struct hci_dev *hdev = file->private_data; |
| 79 | char buf[3]; |
| 80 | |
Marcel Holtmann | 111902f | 2014-06-21 04:53:17 +0200 | [diff] [blame] | 81 | buf[0] = test_bit(HCI_DUT_MODE, &hdev->dbg_flags) ? 'Y': 'N'; |
Marcel Holtmann | 4b4148e | 2013-10-19 07:09:12 -0700 | [diff] [blame] | 82 | buf[1] = '\n'; |
| 83 | buf[2] = '\0'; |
| 84 | return simple_read_from_buffer(user_buf, count, ppos, buf, 2); |
| 85 | } |
| 86 | |
| 87 | static ssize_t dut_mode_write(struct file *file, const char __user *user_buf, |
| 88 | size_t count, loff_t *ppos) |
| 89 | { |
| 90 | struct hci_dev *hdev = file->private_data; |
| 91 | struct sk_buff *skb; |
| 92 | char buf[32]; |
| 93 | size_t buf_size = min(count, (sizeof(buf)-1)); |
| 94 | bool enable; |
| 95 | int err; |
| 96 | |
| 97 | if (!test_bit(HCI_UP, &hdev->flags)) |
| 98 | return -ENETDOWN; |
| 99 | |
| 100 | if (copy_from_user(buf, user_buf, buf_size)) |
| 101 | return -EFAULT; |
| 102 | |
| 103 | buf[buf_size] = '\0'; |
| 104 | if (strtobool(buf, &enable)) |
| 105 | return -EINVAL; |
| 106 | |
Marcel Holtmann | 111902f | 2014-06-21 04:53:17 +0200 | [diff] [blame] | 107 | if (enable == test_bit(HCI_DUT_MODE, &hdev->dbg_flags)) |
Marcel Holtmann | 4b4148e | 2013-10-19 07:09:12 -0700 | [diff] [blame] | 108 | return -EALREADY; |
| 109 | |
| 110 | hci_req_lock(hdev); |
| 111 | if (enable) |
| 112 | skb = __hci_cmd_sync(hdev, HCI_OP_ENABLE_DUT_MODE, 0, NULL, |
| 113 | HCI_CMD_TIMEOUT); |
| 114 | else |
| 115 | skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, |
| 116 | HCI_CMD_TIMEOUT); |
| 117 | hci_req_unlock(hdev); |
| 118 | |
| 119 | if (IS_ERR(skb)) |
| 120 | return PTR_ERR(skb); |
| 121 | |
| 122 | err = -bt_to_errno(skb->data[0]); |
| 123 | kfree_skb(skb); |
| 124 | |
| 125 | if (err < 0) |
| 126 | return err; |
| 127 | |
Marcel Holtmann | 111902f | 2014-06-21 04:53:17 +0200 | [diff] [blame] | 128 | change_bit(HCI_DUT_MODE, &hdev->dbg_flags); |
Marcel Holtmann | 4b4148e | 2013-10-19 07:09:12 -0700 | [diff] [blame] | 129 | |
| 130 | return count; |
| 131 | } |
| 132 | |
| 133 | static const struct file_operations dut_mode_fops = { |
| 134 | .open = simple_open, |
| 135 | .read = dut_mode_read, |
| 136 | .write = dut_mode_write, |
| 137 | .llseek = default_llseek, |
| 138 | }; |
| 139 | |
Marcel Holtmann | dfb826a | 2013-10-18 12:04:46 -0700 | [diff] [blame] | 140 | static int features_show(struct seq_file *f, void *ptr) |
| 141 | { |
| 142 | struct hci_dev *hdev = f->private; |
| 143 | u8 p; |
| 144 | |
| 145 | hci_dev_lock(hdev); |
| 146 | for (p = 0; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) { |
Marcel Holtmann | cfbb2b5 | 2013-10-19 02:25:33 -0700 | [diff] [blame] | 147 | seq_printf(f, "%2u: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x " |
Marcel Holtmann | dfb826a | 2013-10-18 12:04:46 -0700 | [diff] [blame] | 148 | "0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n", p, |
| 149 | hdev->features[p][0], hdev->features[p][1], |
| 150 | hdev->features[p][2], hdev->features[p][3], |
| 151 | hdev->features[p][4], hdev->features[p][5], |
| 152 | hdev->features[p][6], hdev->features[p][7]); |
| 153 | } |
Marcel Holtmann | cfbb2b5 | 2013-10-19 02:25:33 -0700 | [diff] [blame] | 154 | if (lmp_le_capable(hdev)) |
| 155 | seq_printf(f, "LE: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x " |
| 156 | "0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n", |
| 157 | hdev->le_features[0], hdev->le_features[1], |
| 158 | hdev->le_features[2], hdev->le_features[3], |
| 159 | hdev->le_features[4], hdev->le_features[5], |
| 160 | hdev->le_features[6], hdev->le_features[7]); |
Marcel Holtmann | dfb826a | 2013-10-18 12:04:46 -0700 | [diff] [blame] | 161 | hci_dev_unlock(hdev); |
| 162 | |
| 163 | return 0; |
| 164 | } |
| 165 | |
| 166 | static int features_open(struct inode *inode, struct file *file) |
| 167 | { |
| 168 | return single_open(file, features_show, inode->i_private); |
| 169 | } |
| 170 | |
| 171 | static const struct file_operations features_fops = { |
| 172 | .open = features_open, |
| 173 | .read = seq_read, |
| 174 | .llseek = seq_lseek, |
| 175 | .release = single_release, |
| 176 | }; |
| 177 | |
Marcel Holtmann | 70afe0b | 2013-10-17 17:24:14 -0700 | [diff] [blame] | 178 | static int blacklist_show(struct seq_file *f, void *p) |
| 179 | { |
| 180 | struct hci_dev *hdev = f->private; |
| 181 | struct bdaddr_list *b; |
| 182 | |
| 183 | hci_dev_lock(hdev); |
| 184 | list_for_each_entry(b, &hdev->blacklist, list) |
Marcel Holtmann | b25f078 | 2013-10-17 17:24:20 -0700 | [diff] [blame] | 185 | seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); |
Marcel Holtmann | 70afe0b | 2013-10-17 17:24:14 -0700 | [diff] [blame] | 186 | hci_dev_unlock(hdev); |
| 187 | |
| 188 | return 0; |
| 189 | } |
| 190 | |
| 191 | static int blacklist_open(struct inode *inode, struct file *file) |
| 192 | { |
| 193 | return single_open(file, blacklist_show, inode->i_private); |
| 194 | } |
| 195 | |
| 196 | static const struct file_operations blacklist_fops = { |
| 197 | .open = blacklist_open, |
| 198 | .read = seq_read, |
| 199 | .llseek = seq_lseek, |
| 200 | .release = single_release, |
| 201 | }; |
| 202 | |
Johan Hedberg | 6659358 | 2014-07-09 12:59:14 +0300 | [diff] [blame] | 203 | static int whitelist_show(struct seq_file *f, void *p) |
| 204 | { |
| 205 | struct hci_dev *hdev = f->private; |
| 206 | struct bdaddr_list *b; |
| 207 | |
| 208 | hci_dev_lock(hdev); |
| 209 | list_for_each_entry(b, &hdev->whitelist, list) |
| 210 | seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); |
| 211 | hci_dev_unlock(hdev); |
| 212 | |
| 213 | return 0; |
| 214 | } |
| 215 | |
| 216 | static int whitelist_open(struct inode *inode, struct file *file) |
| 217 | { |
| 218 | return single_open(file, whitelist_show, inode->i_private); |
| 219 | } |
| 220 | |
| 221 | static const struct file_operations whitelist_fops = { |
| 222 | .open = whitelist_open, |
| 223 | .read = seq_read, |
| 224 | .llseek = seq_lseek, |
| 225 | .release = single_release, |
| 226 | }; |
| 227 | |
Marcel Holtmann | 4721983 | 2013-10-17 17:24:15 -0700 | [diff] [blame] | 228 | static int uuids_show(struct seq_file *f, void *p) |
| 229 | { |
| 230 | struct hci_dev *hdev = f->private; |
| 231 | struct bt_uuid *uuid; |
| 232 | |
| 233 | hci_dev_lock(hdev); |
| 234 | list_for_each_entry(uuid, &hdev->uuids, list) { |
Marcel Holtmann | 58f01aa | 2013-10-19 09:31:59 -0700 | [diff] [blame] | 235 | u8 i, val[16]; |
Marcel Holtmann | 4721983 | 2013-10-17 17:24:15 -0700 | [diff] [blame] | 236 | |
Marcel Holtmann | 58f01aa | 2013-10-19 09:31:59 -0700 | [diff] [blame] | 237 | /* The Bluetooth UUID values are stored in big endian, |
| 238 | * but with reversed byte order. So convert them into |
| 239 | * the right order for the %pUb modifier. |
| 240 | */ |
| 241 | for (i = 0; i < 16; i++) |
| 242 | val[i] = uuid->uuid[15 - i]; |
Marcel Holtmann | 4721983 | 2013-10-17 17:24:15 -0700 | [diff] [blame] | 243 | |
Marcel Holtmann | 58f01aa | 2013-10-19 09:31:59 -0700 | [diff] [blame] | 244 | seq_printf(f, "%pUb\n", val); |
Marcel Holtmann | 4721983 | 2013-10-17 17:24:15 -0700 | [diff] [blame] | 245 | } |
| 246 | hci_dev_unlock(hdev); |
| 247 | |
| 248 | return 0; |
| 249 | } |
| 250 | |
| 251 | static int uuids_open(struct inode *inode, struct file *file) |
| 252 | { |
| 253 | return single_open(file, uuids_show, inode->i_private); |
| 254 | } |
| 255 | |
| 256 | static const struct file_operations uuids_fops = { |
| 257 | .open = uuids_open, |
| 258 | .read = seq_read, |
| 259 | .llseek = seq_lseek, |
| 260 | .release = single_release, |
| 261 | }; |
| 262 | |
Marcel Holtmann | baf27f6 | 2013-10-16 03:28:55 -0700 | [diff] [blame] | 263 | static int inquiry_cache_show(struct seq_file *f, void *p) |
| 264 | { |
| 265 | struct hci_dev *hdev = f->private; |
| 266 | struct discovery_state *cache = &hdev->discovery; |
| 267 | struct inquiry_entry *e; |
| 268 | |
| 269 | hci_dev_lock(hdev); |
| 270 | |
| 271 | list_for_each_entry(e, &cache->all, all) { |
| 272 | struct inquiry_data *data = &e->data; |
| 273 | seq_printf(f, "%pMR %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n", |
| 274 | &data->bdaddr, |
| 275 | data->pscan_rep_mode, data->pscan_period_mode, |
| 276 | data->pscan_mode, data->dev_class[2], |
| 277 | data->dev_class[1], data->dev_class[0], |
| 278 | __le16_to_cpu(data->clock_offset), |
| 279 | data->rssi, data->ssp_mode, e->timestamp); |
| 280 | } |
| 281 | |
| 282 | hci_dev_unlock(hdev); |
| 283 | |
| 284 | return 0; |
| 285 | } |
| 286 | |
| 287 | static int inquiry_cache_open(struct inode *inode, struct file *file) |
| 288 | { |
| 289 | return single_open(file, inquiry_cache_show, inode->i_private); |
| 290 | } |
| 291 | |
| 292 | static const struct file_operations inquiry_cache_fops = { |
| 293 | .open = inquiry_cache_open, |
| 294 | .read = seq_read, |
| 295 | .llseek = seq_lseek, |
| 296 | .release = single_release, |
| 297 | }; |
| 298 | |
Marcel Holtmann | 02d08d1 | 2013-10-18 12:04:52 -0700 | [diff] [blame] | 299 | static int link_keys_show(struct seq_file *f, void *ptr) |
| 300 | { |
| 301 | struct hci_dev *hdev = f->private; |
| 302 | struct list_head *p, *n; |
| 303 | |
| 304 | hci_dev_lock(hdev); |
| 305 | list_for_each_safe(p, n, &hdev->link_keys) { |
| 306 | struct link_key *key = list_entry(p, struct link_key, list); |
| 307 | seq_printf(f, "%pMR %u %*phN %u\n", &key->bdaddr, key->type, |
| 308 | HCI_LINK_KEY_SIZE, key->val, key->pin_len); |
| 309 | } |
| 310 | hci_dev_unlock(hdev); |
| 311 | |
| 312 | return 0; |
| 313 | } |
| 314 | |
| 315 | static int link_keys_open(struct inode *inode, struct file *file) |
| 316 | { |
| 317 | return single_open(file, link_keys_show, inode->i_private); |
| 318 | } |
| 319 | |
| 320 | static const struct file_operations link_keys_fops = { |
| 321 | .open = link_keys_open, |
| 322 | .read = seq_read, |
| 323 | .llseek = seq_lseek, |
| 324 | .release = single_release, |
| 325 | }; |
| 326 | |
Marcel Holtmann | babdbb3 | 2013-10-18 12:04:51 -0700 | [diff] [blame] | 327 | static int dev_class_show(struct seq_file *f, void *ptr) |
| 328 | { |
| 329 | struct hci_dev *hdev = f->private; |
| 330 | |
| 331 | hci_dev_lock(hdev); |
| 332 | seq_printf(f, "0x%.2x%.2x%.2x\n", hdev->dev_class[2], |
| 333 | hdev->dev_class[1], hdev->dev_class[0]); |
| 334 | hci_dev_unlock(hdev); |
| 335 | |
| 336 | return 0; |
| 337 | } |
| 338 | |
| 339 | static int dev_class_open(struct inode *inode, struct file *file) |
| 340 | { |
| 341 | return single_open(file, dev_class_show, inode->i_private); |
| 342 | } |
| 343 | |
| 344 | static const struct file_operations dev_class_fops = { |
| 345 | .open = dev_class_open, |
| 346 | .read = seq_read, |
| 347 | .llseek = seq_lseek, |
| 348 | .release = single_release, |
| 349 | }; |
| 350 | |
Marcel Holtmann | 041000b | 2013-10-17 12:02:31 -0700 | [diff] [blame] | 351 | static int voice_setting_get(void *data, u64 *val) |
| 352 | { |
| 353 | struct hci_dev *hdev = data; |
| 354 | |
| 355 | hci_dev_lock(hdev); |
| 356 | *val = hdev->voice_setting; |
| 357 | hci_dev_unlock(hdev); |
| 358 | |
| 359 | return 0; |
| 360 | } |
| 361 | |
| 362 | DEFINE_SIMPLE_ATTRIBUTE(voice_setting_fops, voice_setting_get, |
| 363 | NULL, "0x%4.4llx\n"); |
| 364 | |
Marcel Holtmann | ebd1e33 | 2013-10-17 10:54:46 -0700 | [diff] [blame] | 365 | static int auto_accept_delay_set(void *data, u64 val) |
| 366 | { |
| 367 | struct hci_dev *hdev = data; |
| 368 | |
| 369 | hci_dev_lock(hdev); |
| 370 | hdev->auto_accept_delay = val; |
| 371 | hci_dev_unlock(hdev); |
| 372 | |
| 373 | return 0; |
| 374 | } |
| 375 | |
| 376 | static int auto_accept_delay_get(void *data, u64 *val) |
| 377 | { |
| 378 | struct hci_dev *hdev = data; |
| 379 | |
| 380 | hci_dev_lock(hdev); |
| 381 | *val = hdev->auto_accept_delay; |
| 382 | hci_dev_unlock(hdev); |
| 383 | |
| 384 | return 0; |
| 385 | } |
| 386 | |
| 387 | DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get, |
| 388 | auto_accept_delay_set, "%llu\n"); |
| 389 | |
Marcel Holtmann | 5afeac14 | 2014-01-10 02:07:27 -0800 | [diff] [blame] | 390 | static ssize_t force_sc_support_read(struct file *file, char __user *user_buf, |
| 391 | size_t count, loff_t *ppos) |
| 392 | { |
| 393 | struct hci_dev *hdev = file->private_data; |
| 394 | char buf[3]; |
| 395 | |
Marcel Holtmann | 111902f | 2014-06-21 04:53:17 +0200 | [diff] [blame] | 396 | buf[0] = test_bit(HCI_FORCE_SC, &hdev->dbg_flags) ? 'Y': 'N'; |
Marcel Holtmann | 5afeac14 | 2014-01-10 02:07:27 -0800 | [diff] [blame] | 397 | buf[1] = '\n'; |
| 398 | buf[2] = '\0'; |
| 399 | return simple_read_from_buffer(user_buf, count, ppos, buf, 2); |
| 400 | } |
| 401 | |
| 402 | static ssize_t force_sc_support_write(struct file *file, |
| 403 | const char __user *user_buf, |
| 404 | size_t count, loff_t *ppos) |
| 405 | { |
| 406 | struct hci_dev *hdev = file->private_data; |
| 407 | char buf[32]; |
| 408 | size_t buf_size = min(count, (sizeof(buf)-1)); |
| 409 | bool enable; |
| 410 | |
| 411 | if (test_bit(HCI_UP, &hdev->flags)) |
| 412 | return -EBUSY; |
| 413 | |
| 414 | if (copy_from_user(buf, user_buf, buf_size)) |
| 415 | return -EFAULT; |
| 416 | |
| 417 | buf[buf_size] = '\0'; |
| 418 | if (strtobool(buf, &enable)) |
| 419 | return -EINVAL; |
| 420 | |
Marcel Holtmann | 111902f | 2014-06-21 04:53:17 +0200 | [diff] [blame] | 421 | if (enable == test_bit(HCI_FORCE_SC, &hdev->dbg_flags)) |
Marcel Holtmann | 5afeac14 | 2014-01-10 02:07:27 -0800 | [diff] [blame] | 422 | return -EALREADY; |
| 423 | |
Marcel Holtmann | 111902f | 2014-06-21 04:53:17 +0200 | [diff] [blame] | 424 | change_bit(HCI_FORCE_SC, &hdev->dbg_flags); |
Marcel Holtmann | 5afeac14 | 2014-01-10 02:07:27 -0800 | [diff] [blame] | 425 | |
| 426 | return count; |
| 427 | } |
| 428 | |
| 429 | static const struct file_operations force_sc_support_fops = { |
| 430 | .open = simple_open, |
| 431 | .read = force_sc_support_read, |
| 432 | .write = force_sc_support_write, |
| 433 | .llseek = default_llseek, |
| 434 | }; |
| 435 | |
Marcel Holtmann | 134c2a8 | 2014-01-15 22:37:42 -0800 | [diff] [blame] | 436 | static ssize_t sc_only_mode_read(struct file *file, char __user *user_buf, |
| 437 | size_t count, loff_t *ppos) |
| 438 | { |
| 439 | struct hci_dev *hdev = file->private_data; |
| 440 | char buf[3]; |
| 441 | |
| 442 | buf[0] = test_bit(HCI_SC_ONLY, &hdev->dev_flags) ? 'Y': 'N'; |
| 443 | buf[1] = '\n'; |
| 444 | buf[2] = '\0'; |
| 445 | return simple_read_from_buffer(user_buf, count, ppos, buf, 2); |
| 446 | } |
| 447 | |
| 448 | static const struct file_operations sc_only_mode_fops = { |
| 449 | .open = simple_open, |
| 450 | .read = sc_only_mode_read, |
| 451 | .llseek = default_llseek, |
| 452 | }; |
| 453 | |
Marcel Holtmann | 2bfa353 | 2013-10-17 19:16:02 -0700 | [diff] [blame] | 454 | static int idle_timeout_set(void *data, u64 val) |
| 455 | { |
| 456 | struct hci_dev *hdev = data; |
| 457 | |
| 458 | if (val != 0 && (val < 500 || val > 3600000)) |
| 459 | return -EINVAL; |
| 460 | |
| 461 | hci_dev_lock(hdev); |
Marcel Holtmann | 2be48b6 | 2013-10-19 10:19:15 -0700 | [diff] [blame] | 462 | hdev->idle_timeout = val; |
Marcel Holtmann | 2bfa353 | 2013-10-17 19:16:02 -0700 | [diff] [blame] | 463 | hci_dev_unlock(hdev); |
| 464 | |
| 465 | return 0; |
| 466 | } |
| 467 | |
| 468 | static int idle_timeout_get(void *data, u64 *val) |
| 469 | { |
| 470 | struct hci_dev *hdev = data; |
| 471 | |
| 472 | hci_dev_lock(hdev); |
| 473 | *val = hdev->idle_timeout; |
| 474 | hci_dev_unlock(hdev); |
| 475 | |
| 476 | return 0; |
| 477 | } |
| 478 | |
| 479 | DEFINE_SIMPLE_ATTRIBUTE(idle_timeout_fops, idle_timeout_get, |
| 480 | idle_timeout_set, "%llu\n"); |
| 481 | |
Johan Hedberg | c982b2e | 2014-02-23 19:42:26 +0200 | [diff] [blame] | 482 | static int rpa_timeout_set(void *data, u64 val) |
| 483 | { |
| 484 | struct hci_dev *hdev = data; |
| 485 | |
| 486 | /* Require the RPA timeout to be at least 30 seconds and at most |
| 487 | * 24 hours. |
| 488 | */ |
| 489 | if (val < 30 || val > (60 * 60 * 24)) |
| 490 | return -EINVAL; |
| 491 | |
| 492 | hci_dev_lock(hdev); |
| 493 | hdev->rpa_timeout = val; |
| 494 | hci_dev_unlock(hdev); |
| 495 | |
| 496 | return 0; |
| 497 | } |
| 498 | |
| 499 | static int rpa_timeout_get(void *data, u64 *val) |
| 500 | { |
| 501 | struct hci_dev *hdev = data; |
| 502 | |
| 503 | hci_dev_lock(hdev); |
| 504 | *val = hdev->rpa_timeout; |
| 505 | hci_dev_unlock(hdev); |
| 506 | |
| 507 | return 0; |
| 508 | } |
| 509 | |
| 510 | DEFINE_SIMPLE_ATTRIBUTE(rpa_timeout_fops, rpa_timeout_get, |
| 511 | rpa_timeout_set, "%llu\n"); |
| 512 | |
Marcel Holtmann | 2bfa353 | 2013-10-17 19:16:02 -0700 | [diff] [blame] | 513 | static int sniff_min_interval_set(void *data, u64 val) |
| 514 | { |
| 515 | struct hci_dev *hdev = data; |
| 516 | |
| 517 | if (val == 0 || val % 2 || val > hdev->sniff_max_interval) |
| 518 | return -EINVAL; |
| 519 | |
| 520 | hci_dev_lock(hdev); |
Marcel Holtmann | 2be48b6 | 2013-10-19 10:19:15 -0700 | [diff] [blame] | 521 | hdev->sniff_min_interval = val; |
Marcel Holtmann | 2bfa353 | 2013-10-17 19:16:02 -0700 | [diff] [blame] | 522 | hci_dev_unlock(hdev); |
| 523 | |
| 524 | return 0; |
| 525 | } |
| 526 | |
| 527 | static int sniff_min_interval_get(void *data, u64 *val) |
| 528 | { |
| 529 | struct hci_dev *hdev = data; |
| 530 | |
| 531 | hci_dev_lock(hdev); |
| 532 | *val = hdev->sniff_min_interval; |
| 533 | hci_dev_unlock(hdev); |
| 534 | |
| 535 | return 0; |
| 536 | } |
| 537 | |
| 538 | DEFINE_SIMPLE_ATTRIBUTE(sniff_min_interval_fops, sniff_min_interval_get, |
| 539 | sniff_min_interval_set, "%llu\n"); |
| 540 | |
| 541 | static int sniff_max_interval_set(void *data, u64 val) |
| 542 | { |
| 543 | struct hci_dev *hdev = data; |
| 544 | |
| 545 | if (val == 0 || val % 2 || val < hdev->sniff_min_interval) |
| 546 | return -EINVAL; |
| 547 | |
| 548 | hci_dev_lock(hdev); |
Marcel Holtmann | 2be48b6 | 2013-10-19 10:19:15 -0700 | [diff] [blame] | 549 | hdev->sniff_max_interval = val; |
Marcel Holtmann | 2bfa353 | 2013-10-17 19:16:02 -0700 | [diff] [blame] | 550 | hci_dev_unlock(hdev); |
| 551 | |
| 552 | return 0; |
| 553 | } |
| 554 | |
| 555 | static int sniff_max_interval_get(void *data, u64 *val) |
| 556 | { |
| 557 | struct hci_dev *hdev = data; |
| 558 | |
| 559 | hci_dev_lock(hdev); |
| 560 | *val = hdev->sniff_max_interval; |
| 561 | hci_dev_unlock(hdev); |
| 562 | |
| 563 | return 0; |
| 564 | } |
| 565 | |
| 566 | DEFINE_SIMPLE_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get, |
| 567 | sniff_max_interval_set, "%llu\n"); |
| 568 | |
Andrzej Kaczmarek | 31ad169 | 2014-05-14 13:43:02 +0200 | [diff] [blame] | 569 | static int conn_info_min_age_set(void *data, u64 val) |
| 570 | { |
| 571 | struct hci_dev *hdev = data; |
| 572 | |
| 573 | if (val == 0 || val > hdev->conn_info_max_age) |
| 574 | return -EINVAL; |
| 575 | |
| 576 | hci_dev_lock(hdev); |
| 577 | hdev->conn_info_min_age = val; |
| 578 | hci_dev_unlock(hdev); |
| 579 | |
| 580 | return 0; |
| 581 | } |
| 582 | |
| 583 | static int conn_info_min_age_get(void *data, u64 *val) |
| 584 | { |
| 585 | struct hci_dev *hdev = data; |
| 586 | |
| 587 | hci_dev_lock(hdev); |
| 588 | *val = hdev->conn_info_min_age; |
| 589 | hci_dev_unlock(hdev); |
| 590 | |
| 591 | return 0; |
| 592 | } |
| 593 | |
| 594 | DEFINE_SIMPLE_ATTRIBUTE(conn_info_min_age_fops, conn_info_min_age_get, |
| 595 | conn_info_min_age_set, "%llu\n"); |
| 596 | |
| 597 | static int conn_info_max_age_set(void *data, u64 val) |
| 598 | { |
| 599 | struct hci_dev *hdev = data; |
| 600 | |
| 601 | if (val == 0 || val < hdev->conn_info_min_age) |
| 602 | return -EINVAL; |
| 603 | |
| 604 | hci_dev_lock(hdev); |
| 605 | hdev->conn_info_max_age = val; |
| 606 | hci_dev_unlock(hdev); |
| 607 | |
| 608 | return 0; |
| 609 | } |
| 610 | |
| 611 | static int conn_info_max_age_get(void *data, u64 *val) |
| 612 | { |
| 613 | struct hci_dev *hdev = data; |
| 614 | |
| 615 | hci_dev_lock(hdev); |
| 616 | *val = hdev->conn_info_max_age; |
| 617 | hci_dev_unlock(hdev); |
| 618 | |
| 619 | return 0; |
| 620 | } |
| 621 | |
| 622 | DEFINE_SIMPLE_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get, |
| 623 | conn_info_max_age_set, "%llu\n"); |
| 624 | |
Marcel Holtmann | ac34581 | 2014-02-23 12:44:25 -0800 | [diff] [blame] | 625 | static int identity_show(struct seq_file *f, void *p) |
| 626 | { |
| 627 | struct hci_dev *hdev = f->private; |
Johan Hedberg | a1f4c31 | 2014-02-27 14:05:41 +0200 | [diff] [blame] | 628 | bdaddr_t addr; |
Marcel Holtmann | ac34581 | 2014-02-23 12:44:25 -0800 | [diff] [blame] | 629 | u8 addr_type; |
| 630 | |
| 631 | hci_dev_lock(hdev); |
| 632 | |
Johan Hedberg | a1f4c31 | 2014-02-27 14:05:41 +0200 | [diff] [blame] | 633 | hci_copy_identity_address(hdev, &addr, &addr_type); |
Marcel Holtmann | ac34581 | 2014-02-23 12:44:25 -0800 | [diff] [blame] | 634 | |
Johan Hedberg | a1f4c31 | 2014-02-27 14:05:41 +0200 | [diff] [blame] | 635 | seq_printf(f, "%pMR (type %u) %*phN %pMR\n", &addr, addr_type, |
Marcel Holtmann | 473deef2c9 | 2014-02-23 20:39:23 -0800 | [diff] [blame] | 636 | 16, hdev->irk, &hdev->rpa); |
Marcel Holtmann | ac34581 | 2014-02-23 12:44:25 -0800 | [diff] [blame] | 637 | |
| 638 | hci_dev_unlock(hdev); |
| 639 | |
| 640 | return 0; |
| 641 | } |
| 642 | |
| 643 | static int identity_open(struct inode *inode, struct file *file) |
| 644 | { |
| 645 | return single_open(file, identity_show, inode->i_private); |
| 646 | } |
| 647 | |
| 648 | static const struct file_operations identity_fops = { |
| 649 | .open = identity_open, |
| 650 | .read = seq_read, |
| 651 | .llseek = seq_lseek, |
| 652 | .release = single_release, |
| 653 | }; |
| 654 | |
Marcel Holtmann | 7a4cd51 | 2014-02-19 19:52:13 -0800 | [diff] [blame] | 655 | static int random_address_show(struct seq_file *f, void *p) |
| 656 | { |
| 657 | struct hci_dev *hdev = f->private; |
| 658 | |
| 659 | hci_dev_lock(hdev); |
| 660 | seq_printf(f, "%pMR\n", &hdev->random_addr); |
| 661 | hci_dev_unlock(hdev); |
| 662 | |
| 663 | return 0; |
| 664 | } |
| 665 | |
| 666 | static int random_address_open(struct inode *inode, struct file *file) |
| 667 | { |
| 668 | return single_open(file, random_address_show, inode->i_private); |
| 669 | } |
| 670 | |
| 671 | static const struct file_operations random_address_fops = { |
| 672 | .open = random_address_open, |
| 673 | .read = seq_read, |
| 674 | .llseek = seq_lseek, |
| 675 | .release = single_release, |
| 676 | }; |
| 677 | |
Marcel Holtmann | e7b8fc9 | 2013-10-17 11:45:09 -0700 | [diff] [blame] | 678 | static int static_address_show(struct seq_file *f, void *p) |
| 679 | { |
| 680 | struct hci_dev *hdev = f->private; |
| 681 | |
| 682 | hci_dev_lock(hdev); |
| 683 | seq_printf(f, "%pMR\n", &hdev->static_addr); |
| 684 | hci_dev_unlock(hdev); |
| 685 | |
| 686 | return 0; |
| 687 | } |
| 688 | |
| 689 | static int static_address_open(struct inode *inode, struct file *file) |
| 690 | { |
| 691 | return single_open(file, static_address_show, inode->i_private); |
| 692 | } |
| 693 | |
| 694 | static const struct file_operations static_address_fops = { |
| 695 | .open = static_address_open, |
| 696 | .read = seq_read, |
| 697 | .llseek = seq_lseek, |
| 698 | .release = single_release, |
| 699 | }; |
| 700 | |
Marcel Holtmann | b32bba6 | 2014-02-19 19:31:26 -0800 | [diff] [blame] | 701 | static ssize_t force_static_address_read(struct file *file, |
| 702 | char __user *user_buf, |
| 703 | size_t count, loff_t *ppos) |
Marcel Holtmann | 9220218 | 2013-10-18 16:38:10 -0700 | [diff] [blame] | 704 | { |
Marcel Holtmann | b32bba6 | 2014-02-19 19:31:26 -0800 | [diff] [blame] | 705 | struct hci_dev *hdev = file->private_data; |
| 706 | char buf[3]; |
Marcel Holtmann | 9220218 | 2013-10-18 16:38:10 -0700 | [diff] [blame] | 707 | |
Marcel Holtmann | 111902f | 2014-06-21 04:53:17 +0200 | [diff] [blame] | 708 | buf[0] = test_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags) ? 'Y': 'N'; |
Marcel Holtmann | b32bba6 | 2014-02-19 19:31:26 -0800 | [diff] [blame] | 709 | buf[1] = '\n'; |
| 710 | buf[2] = '\0'; |
| 711 | return simple_read_from_buffer(user_buf, count, ppos, buf, 2); |
| 712 | } |
| 713 | |
| 714 | static ssize_t force_static_address_write(struct file *file, |
| 715 | const char __user *user_buf, |
| 716 | size_t count, loff_t *ppos) |
| 717 | { |
| 718 | struct hci_dev *hdev = file->private_data; |
| 719 | char buf[32]; |
| 720 | size_t buf_size = min(count, (sizeof(buf)-1)); |
| 721 | bool enable; |
| 722 | |
| 723 | if (test_bit(HCI_UP, &hdev->flags)) |
| 724 | return -EBUSY; |
| 725 | |
| 726 | if (copy_from_user(buf, user_buf, buf_size)) |
| 727 | return -EFAULT; |
| 728 | |
| 729 | buf[buf_size] = '\0'; |
| 730 | if (strtobool(buf, &enable)) |
Marcel Holtmann | 9220218 | 2013-10-18 16:38:10 -0700 | [diff] [blame] | 731 | return -EINVAL; |
| 732 | |
Marcel Holtmann | 111902f | 2014-06-21 04:53:17 +0200 | [diff] [blame] | 733 | if (enable == test_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags)) |
Marcel Holtmann | b32bba6 | 2014-02-19 19:31:26 -0800 | [diff] [blame] | 734 | return -EALREADY; |
Marcel Holtmann | 9220218 | 2013-10-18 16:38:10 -0700 | [diff] [blame] | 735 | |
Marcel Holtmann | 111902f | 2014-06-21 04:53:17 +0200 | [diff] [blame] | 736 | change_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags); |
Marcel Holtmann | b32bba6 | 2014-02-19 19:31:26 -0800 | [diff] [blame] | 737 | |
| 738 | return count; |
Marcel Holtmann | 9220218 | 2013-10-18 16:38:10 -0700 | [diff] [blame] | 739 | } |
| 740 | |
Marcel Holtmann | b32bba6 | 2014-02-19 19:31:26 -0800 | [diff] [blame] | 741 | static const struct file_operations force_static_address_fops = { |
| 742 | .open = simple_open, |
| 743 | .read = force_static_address_read, |
| 744 | .write = force_static_address_write, |
| 745 | .llseek = default_llseek, |
| 746 | }; |
Marcel Holtmann | 9220218 | 2013-10-18 16:38:10 -0700 | [diff] [blame] | 747 | |
Marcel Holtmann | d2ab0ac | 2014-02-27 20:37:30 -0800 | [diff] [blame] | 748 | static int white_list_show(struct seq_file *f, void *ptr) |
| 749 | { |
| 750 | struct hci_dev *hdev = f->private; |
| 751 | struct bdaddr_list *b; |
| 752 | |
| 753 | hci_dev_lock(hdev); |
| 754 | list_for_each_entry(b, &hdev->le_white_list, list) |
| 755 | seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); |
| 756 | hci_dev_unlock(hdev); |
| 757 | |
| 758 | return 0; |
| 759 | } |
| 760 | |
| 761 | static int white_list_open(struct inode *inode, struct file *file) |
| 762 | { |
| 763 | return single_open(file, white_list_show, inode->i_private); |
| 764 | } |
| 765 | |
| 766 | static const struct file_operations white_list_fops = { |
| 767 | .open = white_list_open, |
| 768 | .read = seq_read, |
| 769 | .llseek = seq_lseek, |
| 770 | .release = single_release, |
| 771 | }; |
| 772 | |
Marcel Holtmann | 3698d70 | 2014-02-18 21:54:49 -0800 | [diff] [blame] | 773 | static int identity_resolving_keys_show(struct seq_file *f, void *ptr) |
| 774 | { |
| 775 | struct hci_dev *hdev = f->private; |
| 776 | struct list_head *p, *n; |
| 777 | |
| 778 | hci_dev_lock(hdev); |
| 779 | list_for_each_safe(p, n, &hdev->identity_resolving_keys) { |
| 780 | struct smp_irk *irk = list_entry(p, struct smp_irk, list); |
| 781 | seq_printf(f, "%pMR (type %u) %*phN %pMR\n", |
| 782 | &irk->bdaddr, irk->addr_type, |
| 783 | 16, irk->val, &irk->rpa); |
| 784 | } |
| 785 | hci_dev_unlock(hdev); |
| 786 | |
| 787 | return 0; |
| 788 | } |
| 789 | |
| 790 | static int identity_resolving_keys_open(struct inode *inode, struct file *file) |
| 791 | { |
| 792 | return single_open(file, identity_resolving_keys_show, |
| 793 | inode->i_private); |
| 794 | } |
| 795 | |
| 796 | static const struct file_operations identity_resolving_keys_fops = { |
| 797 | .open = identity_resolving_keys_open, |
| 798 | .read = seq_read, |
| 799 | .llseek = seq_lseek, |
| 800 | .release = single_release, |
| 801 | }; |
| 802 | |
Marcel Holtmann | 8f8625c | 2013-10-18 15:56:57 -0700 | [diff] [blame] | 803 | static int long_term_keys_show(struct seq_file *f, void *ptr) |
| 804 | { |
| 805 | struct hci_dev *hdev = f->private; |
| 806 | struct list_head *p, *n; |
| 807 | |
| 808 | hci_dev_lock(hdev); |
Johan Hedberg | f813f1b | 2014-01-30 19:39:57 -0800 | [diff] [blame] | 809 | list_for_each_safe(p, n, &hdev->long_term_keys) { |
Marcel Holtmann | 8f8625c | 2013-10-18 15:56:57 -0700 | [diff] [blame] | 810 | struct smp_ltk *ltk = list_entry(p, struct smp_ltk, list); |
Marcel Holtmann | fe39c7b | 2014-02-27 16:00:28 -0800 | [diff] [blame] | 811 | seq_printf(f, "%pMR (type %u) %u 0x%02x %u %.4x %.16llx %*phN\n", |
Marcel Holtmann | 8f8625c | 2013-10-18 15:56:57 -0700 | [diff] [blame] | 812 | <k->bdaddr, ltk->bdaddr_type, ltk->authenticated, |
| 813 | ltk->type, ltk->enc_size, __le16_to_cpu(ltk->ediv), |
Marcel Holtmann | fe39c7b | 2014-02-27 16:00:28 -0800 | [diff] [blame] | 814 | __le64_to_cpu(ltk->rand), 16, ltk->val); |
Marcel Holtmann | 8f8625c | 2013-10-18 15:56:57 -0700 | [diff] [blame] | 815 | } |
| 816 | hci_dev_unlock(hdev); |
| 817 | |
| 818 | return 0; |
| 819 | } |
| 820 | |
| 821 | static int long_term_keys_open(struct inode *inode, struct file *file) |
| 822 | { |
| 823 | return single_open(file, long_term_keys_show, inode->i_private); |
| 824 | } |
| 825 | |
| 826 | static const struct file_operations long_term_keys_fops = { |
| 827 | .open = long_term_keys_open, |
| 828 | .read = seq_read, |
| 829 | .llseek = seq_lseek, |
| 830 | .release = single_release, |
| 831 | }; |
| 832 | |
Marcel Holtmann | 4e70c7e | 2013-10-19 07:09:13 -0700 | [diff] [blame] | 833 | static int conn_min_interval_set(void *data, u64 val) |
| 834 | { |
| 835 | struct hci_dev *hdev = data; |
| 836 | |
| 837 | if (val < 0x0006 || val > 0x0c80 || val > hdev->le_conn_max_interval) |
| 838 | return -EINVAL; |
| 839 | |
| 840 | hci_dev_lock(hdev); |
Marcel Holtmann | 2be48b6 | 2013-10-19 10:19:15 -0700 | [diff] [blame] | 841 | hdev->le_conn_min_interval = val; |
Marcel Holtmann | 4e70c7e | 2013-10-19 07:09:13 -0700 | [diff] [blame] | 842 | hci_dev_unlock(hdev); |
| 843 | |
| 844 | return 0; |
| 845 | } |
| 846 | |
| 847 | static int conn_min_interval_get(void *data, u64 *val) |
| 848 | { |
| 849 | struct hci_dev *hdev = data; |
| 850 | |
| 851 | hci_dev_lock(hdev); |
| 852 | *val = hdev->le_conn_min_interval; |
| 853 | hci_dev_unlock(hdev); |
| 854 | |
| 855 | return 0; |
| 856 | } |
| 857 | |
| 858 | DEFINE_SIMPLE_ATTRIBUTE(conn_min_interval_fops, conn_min_interval_get, |
| 859 | conn_min_interval_set, "%llu\n"); |
| 860 | |
| 861 | static int conn_max_interval_set(void *data, u64 val) |
| 862 | { |
| 863 | struct hci_dev *hdev = data; |
| 864 | |
| 865 | if (val < 0x0006 || val > 0x0c80 || val < hdev->le_conn_min_interval) |
| 866 | return -EINVAL; |
| 867 | |
| 868 | hci_dev_lock(hdev); |
Marcel Holtmann | 2be48b6 | 2013-10-19 10:19:15 -0700 | [diff] [blame] | 869 | hdev->le_conn_max_interval = val; |
Marcel Holtmann | 4e70c7e | 2013-10-19 07:09:13 -0700 | [diff] [blame] | 870 | hci_dev_unlock(hdev); |
| 871 | |
| 872 | return 0; |
| 873 | } |
| 874 | |
| 875 | static int conn_max_interval_get(void *data, u64 *val) |
| 876 | { |
| 877 | struct hci_dev *hdev = data; |
| 878 | |
| 879 | hci_dev_lock(hdev); |
| 880 | *val = hdev->le_conn_max_interval; |
| 881 | hci_dev_unlock(hdev); |
| 882 | |
| 883 | return 0; |
| 884 | } |
| 885 | |
| 886 | DEFINE_SIMPLE_ATTRIBUTE(conn_max_interval_fops, conn_max_interval_get, |
| 887 | conn_max_interval_set, "%llu\n"); |
| 888 | |
Marcel Holtmann | 816a93d | 2014-06-30 12:34:37 +0200 | [diff] [blame] | 889 | static int conn_latency_set(void *data, u64 val) |
| 890 | { |
| 891 | struct hci_dev *hdev = data; |
| 892 | |
| 893 | if (val > 0x01f3) |
| 894 | return -EINVAL; |
| 895 | |
| 896 | hci_dev_lock(hdev); |
| 897 | hdev->le_conn_latency = val; |
| 898 | hci_dev_unlock(hdev); |
| 899 | |
| 900 | return 0; |
| 901 | } |
| 902 | |
| 903 | static int conn_latency_get(void *data, u64 *val) |
| 904 | { |
| 905 | struct hci_dev *hdev = data; |
| 906 | |
| 907 | hci_dev_lock(hdev); |
| 908 | *val = hdev->le_conn_latency; |
| 909 | hci_dev_unlock(hdev); |
| 910 | |
| 911 | return 0; |
| 912 | } |
| 913 | |
| 914 | DEFINE_SIMPLE_ATTRIBUTE(conn_latency_fops, conn_latency_get, |
| 915 | conn_latency_set, "%llu\n"); |
| 916 | |
Marcel Holtmann | f164957 | 2014-06-30 12:34:38 +0200 | [diff] [blame] | 917 | static int supervision_timeout_set(void *data, u64 val) |
| 918 | { |
| 919 | struct hci_dev *hdev = data; |
| 920 | |
| 921 | if (val < 0x000a || val > 0x0c80) |
| 922 | return -EINVAL; |
| 923 | |
| 924 | hci_dev_lock(hdev); |
| 925 | hdev->le_supv_timeout = val; |
| 926 | hci_dev_unlock(hdev); |
| 927 | |
| 928 | return 0; |
| 929 | } |
| 930 | |
| 931 | static int supervision_timeout_get(void *data, u64 *val) |
| 932 | { |
| 933 | struct hci_dev *hdev = data; |
| 934 | |
| 935 | hci_dev_lock(hdev); |
| 936 | *val = hdev->le_supv_timeout; |
| 937 | hci_dev_unlock(hdev); |
| 938 | |
| 939 | return 0; |
| 940 | } |
| 941 | |
| 942 | DEFINE_SIMPLE_ATTRIBUTE(supervision_timeout_fops, supervision_timeout_get, |
| 943 | supervision_timeout_set, "%llu\n"); |
| 944 | |
Marcel Holtmann | 3f959d4 | 2014-02-20 11:55:56 -0800 | [diff] [blame] | 945 | static int adv_channel_map_set(void *data, u64 val) |
| 946 | { |
| 947 | struct hci_dev *hdev = data; |
| 948 | |
| 949 | if (val < 0x01 || val > 0x07) |
| 950 | return -EINVAL; |
| 951 | |
| 952 | hci_dev_lock(hdev); |
| 953 | hdev->le_adv_channel_map = val; |
| 954 | hci_dev_unlock(hdev); |
| 955 | |
| 956 | return 0; |
| 957 | } |
| 958 | |
| 959 | static int adv_channel_map_get(void *data, u64 *val) |
| 960 | { |
| 961 | struct hci_dev *hdev = data; |
| 962 | |
| 963 | hci_dev_lock(hdev); |
| 964 | *val = hdev->le_adv_channel_map; |
| 965 | hci_dev_unlock(hdev); |
| 966 | |
| 967 | return 0; |
| 968 | } |
| 969 | |
| 970 | DEFINE_SIMPLE_ATTRIBUTE(adv_channel_map_fops, adv_channel_map_get, |
| 971 | adv_channel_map_set, "%llu\n"); |
| 972 | |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 973 | static int adv_min_interval_set(void *data, u64 val) |
Jukka Rissanen | 8986310 | 2013-12-11 17:05:38 +0200 | [diff] [blame] | 974 | { |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 975 | struct hci_dev *hdev = data; |
Jukka Rissanen | 8986310 | 2013-12-11 17:05:38 +0200 | [diff] [blame] | 976 | |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 977 | if (val < 0x0020 || val > 0x4000 || val > hdev->le_adv_max_interval) |
Jukka Rissanen | 8986310 | 2013-12-11 17:05:38 +0200 | [diff] [blame] | 978 | return -EINVAL; |
| 979 | |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 980 | hci_dev_lock(hdev); |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 981 | hdev->le_adv_min_interval = val; |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 982 | hci_dev_unlock(hdev); |
| 983 | |
| 984 | return 0; |
| 985 | } |
| 986 | |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 987 | static int adv_min_interval_get(void *data, u64 *val) |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 988 | { |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 989 | struct hci_dev *hdev = data; |
| 990 | |
| 991 | hci_dev_lock(hdev); |
| 992 | *val = hdev->le_adv_min_interval; |
| 993 | hci_dev_unlock(hdev); |
| 994 | |
| 995 | return 0; |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 996 | } |
| 997 | |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 998 | DEFINE_SIMPLE_ATTRIBUTE(adv_min_interval_fops, adv_min_interval_get, |
| 999 | adv_min_interval_set, "%llu\n"); |
| 1000 | |
| 1001 | static int adv_max_interval_set(void *data, u64 val) |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1002 | { |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 1003 | struct hci_dev *hdev = data; |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1004 | |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 1005 | if (val < 0x0020 || val > 0x4000 || val < hdev->le_adv_min_interval) |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1006 | return -EINVAL; |
| 1007 | |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 1008 | hci_dev_lock(hdev); |
| 1009 | hdev->le_adv_max_interval = val; |
| 1010 | hci_dev_unlock(hdev); |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1011 | |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 1012 | return 0; |
| 1013 | } |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1014 | |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 1015 | static int adv_max_interval_get(void *data, u64 *val) |
| 1016 | { |
| 1017 | struct hci_dev *hdev = data; |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1018 | |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 1019 | hci_dev_lock(hdev); |
| 1020 | *val = hdev->le_adv_max_interval; |
| 1021 | hci_dev_unlock(hdev); |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1022 | |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 1023 | return 0; |
| 1024 | } |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1025 | |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 1026 | DEFINE_SIMPLE_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get, |
| 1027 | adv_max_interval_set, "%llu\n"); |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1028 | |
Marcel Holtmann | 0b3c7d3 | 2014-06-29 16:15:49 +0200 | [diff] [blame] | 1029 | static int device_list_show(struct seq_file *f, void *ptr) |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1030 | { |
Marcel Holtmann | 0b3c7d3 | 2014-06-29 16:15:49 +0200 | [diff] [blame] | 1031 | struct hci_dev *hdev = f->private; |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1032 | struct hci_conn_params *p; |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1033 | |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1034 | hci_dev_lock(hdev); |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1035 | list_for_each_entry(p, &hdev->le_conn_params, list) { |
Marcel Holtmann | 0b3c7d3 | 2014-06-29 16:15:49 +0200 | [diff] [blame] | 1036 | seq_printf(f, "%pMR %u %u\n", &p->addr, p->addr_type, |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1037 | p->auto_connect); |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1038 | } |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1039 | hci_dev_unlock(hdev); |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1040 | |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1041 | return 0; |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1042 | } |
| 1043 | |
Marcel Holtmann | 0b3c7d3 | 2014-06-29 16:15:49 +0200 | [diff] [blame] | 1044 | static int device_list_open(struct inode *inode, struct file *file) |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1045 | { |
Marcel Holtmann | 0b3c7d3 | 2014-06-29 16:15:49 +0200 | [diff] [blame] | 1046 | return single_open(file, device_list_show, inode->i_private); |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1047 | } |
| 1048 | |
Marcel Holtmann | 0b3c7d3 | 2014-06-29 16:15:49 +0200 | [diff] [blame] | 1049 | static const struct file_operations device_list_fops = { |
| 1050 | .open = device_list_open, |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1051 | .read = seq_read, |
Andre Guedes | 7d474e0 | 2014-02-26 20:21:54 -0300 | [diff] [blame] | 1052 | .llseek = seq_lseek, |
| 1053 | .release = single_release, |
| 1054 | }; |
| 1055 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1056 | /* ---- HCI requests ---- */ |
| 1057 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1058 | static void hci_req_sync_complete(struct hci_dev *hdev, u8 result) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1059 | { |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1060 | BT_DBG("%s result 0x%2.2x", hdev->name, result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1061 | |
| 1062 | if (hdev->req_status == HCI_REQ_PEND) { |
| 1063 | hdev->req_result = result; |
| 1064 | hdev->req_status = HCI_REQ_DONE; |
| 1065 | wake_up_interruptible(&hdev->req_wait_q); |
| 1066 | } |
| 1067 | } |
| 1068 | |
| 1069 | static void hci_req_cancel(struct hci_dev *hdev, int err) |
| 1070 | { |
| 1071 | BT_DBG("%s err 0x%2.2x", hdev->name, err); |
| 1072 | |
| 1073 | if (hdev->req_status == HCI_REQ_PEND) { |
| 1074 | hdev->req_result = err; |
| 1075 | hdev->req_status = HCI_REQ_CANCELED; |
| 1076 | wake_up_interruptible(&hdev->req_wait_q); |
| 1077 | } |
| 1078 | } |
| 1079 | |
Fengguang Wu | 77a63e0 | 2013-04-20 16:24:31 +0300 | [diff] [blame] | 1080 | static struct sk_buff *hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode, |
| 1081 | u8 event) |
Johan Hedberg | 75e84b7 | 2013-04-02 13:35:04 +0300 | [diff] [blame] | 1082 | { |
| 1083 | struct hci_ev_cmd_complete *ev; |
| 1084 | struct hci_event_hdr *hdr; |
| 1085 | struct sk_buff *skb; |
| 1086 | |
| 1087 | hci_dev_lock(hdev); |
| 1088 | |
| 1089 | skb = hdev->recv_evt; |
| 1090 | hdev->recv_evt = NULL; |
| 1091 | |
| 1092 | hci_dev_unlock(hdev); |
| 1093 | |
| 1094 | if (!skb) |
| 1095 | return ERR_PTR(-ENODATA); |
| 1096 | |
| 1097 | if (skb->len < sizeof(*hdr)) { |
| 1098 | BT_ERR("Too short HCI event"); |
| 1099 | goto failed; |
| 1100 | } |
| 1101 | |
| 1102 | hdr = (void *) skb->data; |
| 1103 | skb_pull(skb, HCI_EVENT_HDR_SIZE); |
| 1104 | |
Johan Hedberg | 7b1abbb | 2013-04-03 21:54:47 +0300 | [diff] [blame] | 1105 | if (event) { |
| 1106 | if (hdr->evt != event) |
| 1107 | goto failed; |
| 1108 | return skb; |
| 1109 | } |
| 1110 | |
Johan Hedberg | 75e84b7 | 2013-04-02 13:35:04 +0300 | [diff] [blame] | 1111 | if (hdr->evt != HCI_EV_CMD_COMPLETE) { |
| 1112 | BT_DBG("Last event is not cmd complete (0x%2.2x)", hdr->evt); |
| 1113 | goto failed; |
| 1114 | } |
| 1115 | |
| 1116 | if (skb->len < sizeof(*ev)) { |
| 1117 | BT_ERR("Too short cmd_complete event"); |
| 1118 | goto failed; |
| 1119 | } |
| 1120 | |
| 1121 | ev = (void *) skb->data; |
| 1122 | skb_pull(skb, sizeof(*ev)); |
| 1123 | |
| 1124 | if (opcode == __le16_to_cpu(ev->opcode)) |
| 1125 | return skb; |
| 1126 | |
| 1127 | BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode, |
| 1128 | __le16_to_cpu(ev->opcode)); |
| 1129 | |
| 1130 | failed: |
| 1131 | kfree_skb(skb); |
| 1132 | return ERR_PTR(-ENODATA); |
| 1133 | } |
| 1134 | |
Johan Hedberg | 7b1abbb | 2013-04-03 21:54:47 +0300 | [diff] [blame] | 1135 | struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, |
Johan Hedberg | 07dc93d | 2013-04-19 10:14:51 +0300 | [diff] [blame] | 1136 | const void *param, u8 event, u32 timeout) |
Johan Hedberg | 75e84b7 | 2013-04-02 13:35:04 +0300 | [diff] [blame] | 1137 | { |
| 1138 | DECLARE_WAITQUEUE(wait, current); |
| 1139 | struct hci_request req; |
| 1140 | int err = 0; |
| 1141 | |
| 1142 | BT_DBG("%s", hdev->name); |
| 1143 | |
| 1144 | hci_req_init(&req, hdev); |
| 1145 | |
Johan Hedberg | 7b1abbb | 2013-04-03 21:54:47 +0300 | [diff] [blame] | 1146 | hci_req_add_ev(&req, opcode, plen, param, event); |
Johan Hedberg | 75e84b7 | 2013-04-02 13:35:04 +0300 | [diff] [blame] | 1147 | |
| 1148 | hdev->req_status = HCI_REQ_PEND; |
| 1149 | |
Johan Hedberg | 75e84b7 | 2013-04-02 13:35:04 +0300 | [diff] [blame] | 1150 | add_wait_queue(&hdev->req_wait_q, &wait); |
| 1151 | set_current_state(TASK_INTERRUPTIBLE); |
| 1152 | |
Chan-yeol Park | 039fada | 2014-10-31 14:23:06 +0900 | [diff] [blame] | 1153 | err = hci_req_run(&req, hci_req_sync_complete); |
| 1154 | if (err < 0) { |
| 1155 | remove_wait_queue(&hdev->req_wait_q, &wait); |
| 1156 | return ERR_PTR(err); |
| 1157 | } |
| 1158 | |
Johan Hedberg | 75e84b7 | 2013-04-02 13:35:04 +0300 | [diff] [blame] | 1159 | schedule_timeout(timeout); |
| 1160 | |
| 1161 | remove_wait_queue(&hdev->req_wait_q, &wait); |
| 1162 | |
| 1163 | if (signal_pending(current)) |
| 1164 | return ERR_PTR(-EINTR); |
| 1165 | |
| 1166 | switch (hdev->req_status) { |
| 1167 | case HCI_REQ_DONE: |
| 1168 | err = -bt_to_errno(hdev->req_result); |
| 1169 | break; |
| 1170 | |
| 1171 | case HCI_REQ_CANCELED: |
| 1172 | err = -hdev->req_result; |
| 1173 | break; |
| 1174 | |
| 1175 | default: |
| 1176 | err = -ETIMEDOUT; |
| 1177 | break; |
| 1178 | } |
| 1179 | |
| 1180 | hdev->req_status = hdev->req_result = 0; |
| 1181 | |
| 1182 | BT_DBG("%s end: err %d", hdev->name, err); |
| 1183 | |
| 1184 | if (err < 0) |
| 1185 | return ERR_PTR(err); |
| 1186 | |
Johan Hedberg | 7b1abbb | 2013-04-03 21:54:47 +0300 | [diff] [blame] | 1187 | return hci_get_cmd_complete(hdev, opcode, event); |
| 1188 | } |
| 1189 | EXPORT_SYMBOL(__hci_cmd_sync_ev); |
| 1190 | |
| 1191 | struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, |
Johan Hedberg | 07dc93d | 2013-04-19 10:14:51 +0300 | [diff] [blame] | 1192 | const void *param, u32 timeout) |
Johan Hedberg | 7b1abbb | 2013-04-03 21:54:47 +0300 | [diff] [blame] | 1193 | { |
| 1194 | return __hci_cmd_sync_ev(hdev, opcode, plen, param, 0, timeout); |
Johan Hedberg | 75e84b7 | 2013-04-02 13:35:04 +0300 | [diff] [blame] | 1195 | } |
| 1196 | EXPORT_SYMBOL(__hci_cmd_sync); |
| 1197 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1198 | /* Execute request and wait for completion. */ |
Johan Hedberg | 01178cd | 2013-03-05 20:37:41 +0200 | [diff] [blame] | 1199 | static int __hci_req_sync(struct hci_dev *hdev, |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1200 | void (*func)(struct hci_request *req, |
| 1201 | unsigned long opt), |
Johan Hedberg | 01178cd | 2013-03-05 20:37:41 +0200 | [diff] [blame] | 1202 | unsigned long opt, __u32 timeout) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1203 | { |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1204 | struct hci_request req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | DECLARE_WAITQUEUE(wait, current); |
| 1206 | int err = 0; |
| 1207 | |
| 1208 | BT_DBG("%s start", hdev->name); |
| 1209 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1210 | hci_req_init(&req, hdev); |
| 1211 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1212 | hdev->req_status = HCI_REQ_PEND; |
| 1213 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1214 | func(&req, opt); |
Johan Hedberg | 53cce22 | 2013-03-05 20:37:42 +0200 | [diff] [blame] | 1215 | |
Chan-yeol Park | 039fada | 2014-10-31 14:23:06 +0900 | [diff] [blame] | 1216 | add_wait_queue(&hdev->req_wait_q, &wait); |
| 1217 | set_current_state(TASK_INTERRUPTIBLE); |
| 1218 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1219 | err = hci_req_run(&req, hci_req_sync_complete); |
| 1220 | if (err < 0) { |
Johan Hedberg | 53cce22 | 2013-03-05 20:37:42 +0200 | [diff] [blame] | 1221 | hdev->req_status = 0; |
Andre Guedes | 920c830 | 2013-03-08 11:20:15 -0300 | [diff] [blame] | 1222 | |
Chan-yeol Park | 039fada | 2014-10-31 14:23:06 +0900 | [diff] [blame] | 1223 | remove_wait_queue(&hdev->req_wait_q, &wait); |
| 1224 | |
Andre Guedes | 920c830 | 2013-03-08 11:20:15 -0300 | [diff] [blame] | 1225 | /* ENODATA means the HCI request command queue is empty. |
| 1226 | * This can happen when a request with conditionals doesn't |
| 1227 | * trigger any commands to be sent. This is normal behavior |
| 1228 | * and should not trigger an error return. |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1229 | */ |
Andre Guedes | 920c830 | 2013-03-08 11:20:15 -0300 | [diff] [blame] | 1230 | if (err == -ENODATA) |
| 1231 | return 0; |
| 1232 | |
| 1233 | return err; |
Johan Hedberg | 53cce22 | 2013-03-05 20:37:42 +0200 | [diff] [blame] | 1234 | } |
| 1235 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1236 | schedule_timeout(timeout); |
| 1237 | |
| 1238 | remove_wait_queue(&hdev->req_wait_q, &wait); |
| 1239 | |
| 1240 | if (signal_pending(current)) |
| 1241 | return -EINTR; |
| 1242 | |
| 1243 | switch (hdev->req_status) { |
| 1244 | case HCI_REQ_DONE: |
Joe Perches | e175072 | 2011-06-29 18:18:29 -0700 | [diff] [blame] | 1245 | err = -bt_to_errno(hdev->req_result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1246 | break; |
| 1247 | |
| 1248 | case HCI_REQ_CANCELED: |
| 1249 | err = -hdev->req_result; |
| 1250 | break; |
| 1251 | |
| 1252 | default: |
| 1253 | err = -ETIMEDOUT; |
| 1254 | break; |
Stephen Hemminger | 3ff50b7 | 2007-04-20 17:09:22 -0700 | [diff] [blame] | 1255 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1256 | |
Johan Hedberg | a5040ef | 2011-01-10 13:28:59 +0200 | [diff] [blame] | 1257 | hdev->req_status = hdev->req_result = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | |
| 1259 | BT_DBG("%s end: err %d", hdev->name, err); |
| 1260 | |
| 1261 | return err; |
| 1262 | } |
| 1263 | |
Johan Hedberg | 01178cd | 2013-03-05 20:37:41 +0200 | [diff] [blame] | 1264 | static int hci_req_sync(struct hci_dev *hdev, |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1265 | void (*req)(struct hci_request *req, |
| 1266 | unsigned long opt), |
Johan Hedberg | 01178cd | 2013-03-05 20:37:41 +0200 | [diff] [blame] | 1267 | unsigned long opt, __u32 timeout) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1268 | { |
| 1269 | int ret; |
| 1270 | |
Marcel Holtmann | 7c6a329 | 2008-09-12 03:11:54 +0200 | [diff] [blame] | 1271 | if (!test_bit(HCI_UP, &hdev->flags)) |
| 1272 | return -ENETDOWN; |
| 1273 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1274 | /* Serialize all requests */ |
| 1275 | hci_req_lock(hdev); |
Johan Hedberg | 01178cd | 2013-03-05 20:37:41 +0200 | [diff] [blame] | 1276 | ret = __hci_req_sync(hdev, req, opt, timeout); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1277 | hci_req_unlock(hdev); |
| 1278 | |
| 1279 | return ret; |
| 1280 | } |
| 1281 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1282 | static void hci_reset_req(struct hci_request *req, unsigned long opt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1283 | { |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1284 | BT_DBG("%s %ld", req->hdev->name, opt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1285 | |
| 1286 | /* Reset device */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1287 | set_bit(HCI_RESET, &req->hdev->flags); |
| 1288 | hci_req_add(req, HCI_OP_RESET, 0, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1289 | } |
| 1290 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1291 | static void bredr_init(struct hci_request *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1292 | { |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1293 | req->hdev->flow_ctl_mode = HCI_FLOW_CTL_MODE_PACKET_BASED; |
Andrei Emeltchenko | 2455a3e | 2011-12-19 16:31:28 +0200 | [diff] [blame] | 1294 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1295 | /* Read Local Supported Features */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1296 | hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1297 | |
Marcel Holtmann | 1143e5a | 2006-09-23 09:57:20 +0200 | [diff] [blame] | 1298 | /* Read Local Version */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1299 | hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1300 | |
| 1301 | /* Read BD Address */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1302 | hci_req_add(req, HCI_OP_READ_BD_ADDR, 0, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1303 | } |
| 1304 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1305 | static void amp_init(struct hci_request *req) |
Andrei Emeltchenko | e61ef499 | 2011-12-19 16:31:27 +0200 | [diff] [blame] | 1306 | { |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1307 | req->hdev->flow_ctl_mode = HCI_FLOW_CTL_MODE_BLOCK_BASED; |
Andrei Emeltchenko | 2455a3e | 2011-12-19 16:31:28 +0200 | [diff] [blame] | 1308 | |
Andrei Emeltchenko | e61ef499 | 2011-12-19 16:31:27 +0200 | [diff] [blame] | 1309 | /* Read Local Version */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1310 | hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL); |
Andrei Emeltchenko | 6bcbc48 | 2012-03-28 16:31:24 +0300 | [diff] [blame] | 1311 | |
Marcel Holtmann | f6996cf | 2013-10-07 02:31:39 -0700 | [diff] [blame] | 1312 | /* Read Local Supported Commands */ |
| 1313 | hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL); |
| 1314 | |
| 1315 | /* Read Local Supported Features */ |
| 1316 | hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL); |
| 1317 | |
Andrei Emeltchenko | 6bcbc48 | 2012-03-28 16:31:24 +0300 | [diff] [blame] | 1318 | /* Read Local AMP Info */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1319 | hci_req_add(req, HCI_OP_READ_LOCAL_AMP_INFO, 0, NULL); |
Andrei Emeltchenko | e71dfab | 2012-09-06 15:05:46 +0300 | [diff] [blame] | 1320 | |
| 1321 | /* Read Data Blk size */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1322 | hci_req_add(req, HCI_OP_READ_DATA_BLOCK_SIZE, 0, NULL); |
Marcel Holtmann | 7528ca1 | 2013-10-07 03:55:52 -0700 | [diff] [blame] | 1323 | |
Marcel Holtmann | f38ba94 | 2013-10-07 03:55:53 -0700 | [diff] [blame] | 1324 | /* Read Flow Control Mode */ |
| 1325 | hci_req_add(req, HCI_OP_READ_FLOW_CONTROL_MODE, 0, NULL); |
| 1326 | |
Marcel Holtmann | 7528ca1 | 2013-10-07 03:55:52 -0700 | [diff] [blame] | 1327 | /* Read Location Data */ |
| 1328 | hci_req_add(req, HCI_OP_READ_LOCATION_DATA, 0, NULL); |
Andrei Emeltchenko | e61ef499 | 2011-12-19 16:31:27 +0200 | [diff] [blame] | 1329 | } |
| 1330 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1331 | static void hci_init1_req(struct hci_request *req, unsigned long opt) |
Andrei Emeltchenko | e61ef499 | 2011-12-19 16:31:27 +0200 | [diff] [blame] | 1332 | { |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1333 | struct hci_dev *hdev = req->hdev; |
Andrei Emeltchenko | e61ef499 | 2011-12-19 16:31:27 +0200 | [diff] [blame] | 1334 | |
| 1335 | BT_DBG("%s %ld", hdev->name, opt); |
| 1336 | |
Andrei Emeltchenko | 1177871 | 2012-06-11 11:13:10 +0300 | [diff] [blame] | 1337 | /* Reset */ |
| 1338 | if (!test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1339 | hci_reset_req(req, 0); |
Andrei Emeltchenko | 1177871 | 2012-06-11 11:13:10 +0300 | [diff] [blame] | 1340 | |
Andrei Emeltchenko | e61ef499 | 2011-12-19 16:31:27 +0200 | [diff] [blame] | 1341 | switch (hdev->dev_type) { |
| 1342 | case HCI_BREDR: |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1343 | bredr_init(req); |
Andrei Emeltchenko | e61ef499 | 2011-12-19 16:31:27 +0200 | [diff] [blame] | 1344 | break; |
| 1345 | |
| 1346 | case HCI_AMP: |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1347 | amp_init(req); |
Andrei Emeltchenko | e61ef499 | 2011-12-19 16:31:27 +0200 | [diff] [blame] | 1348 | break; |
| 1349 | |
| 1350 | default: |
| 1351 | BT_ERR("Unknown device type %d", hdev->dev_type); |
| 1352 | break; |
| 1353 | } |
Andrei Emeltchenko | e61ef499 | 2011-12-19 16:31:27 +0200 | [diff] [blame] | 1354 | } |
| 1355 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1356 | static void bredr_setup(struct hci_request *req) |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1357 | { |
Marcel Holtmann | 4ca048e | 2013-10-11 16:42:07 -0700 | [diff] [blame] | 1358 | struct hci_dev *hdev = req->hdev; |
| 1359 | |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1360 | __le16 param; |
| 1361 | __u8 flt_type; |
| 1362 | |
| 1363 | /* Read Buffer Size (ACL mtu, max pkt, etc.) */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1364 | hci_req_add(req, HCI_OP_READ_BUFFER_SIZE, 0, NULL); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1365 | |
| 1366 | /* Read Class of Device */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1367 | hci_req_add(req, HCI_OP_READ_CLASS_OF_DEV, 0, NULL); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1368 | |
| 1369 | /* Read Local Name */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1370 | hci_req_add(req, HCI_OP_READ_LOCAL_NAME, 0, NULL); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1371 | |
| 1372 | /* Read Voice Setting */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1373 | hci_req_add(req, HCI_OP_READ_VOICE_SETTING, 0, NULL); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1374 | |
Marcel Holtmann | b4cb9fb | 2013-10-14 13:56:16 -0700 | [diff] [blame] | 1375 | /* Read Number of Supported IAC */ |
| 1376 | hci_req_add(req, HCI_OP_READ_NUM_SUPPORTED_IAC, 0, NULL); |
| 1377 | |
Marcel Holtmann | 4b836f3 | 2013-10-14 14:06:36 -0700 | [diff] [blame] | 1378 | /* Read Current IAC LAP */ |
| 1379 | hci_req_add(req, HCI_OP_READ_CURRENT_IAC_LAP, 0, NULL); |
| 1380 | |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1381 | /* Clear Event Filters */ |
| 1382 | flt_type = HCI_FLT_CLEAR_ALL; |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1383 | hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &flt_type); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1384 | |
| 1385 | /* Connection accept timeout ~20 secs */ |
Joe Perches | dcf4adb | 2014-03-12 10:52:35 -0700 | [diff] [blame] | 1386 | param = cpu_to_le16(0x7d00); |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1387 | hci_req_add(req, HCI_OP_WRITE_CA_TIMEOUT, 2, ¶m); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1388 | |
Marcel Holtmann | 4ca048e | 2013-10-11 16:42:07 -0700 | [diff] [blame] | 1389 | /* AVM Berlin (31), aka "BlueFRITZ!", reports version 1.2, |
| 1390 | * but it does not support page scan related HCI commands. |
| 1391 | */ |
| 1392 | if (hdev->manufacturer != 31 && hdev->hci_ver > BLUETOOTH_VER_1_1) { |
Johan Hedberg | f332ec6 | 2013-03-15 17:07:11 -0500 | [diff] [blame] | 1393 | hci_req_add(req, HCI_OP_READ_PAGE_SCAN_ACTIVITY, 0, NULL); |
| 1394 | hci_req_add(req, HCI_OP_READ_PAGE_SCAN_TYPE, 0, NULL); |
| 1395 | } |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1396 | } |
| 1397 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1398 | static void le_setup(struct hci_request *req) |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1399 | { |
Johan Hedberg | c73eee9 | 2013-04-19 18:35:21 +0300 | [diff] [blame] | 1400 | struct hci_dev *hdev = req->hdev; |
| 1401 | |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1402 | /* Read LE Buffer Size */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1403 | hci_req_add(req, HCI_OP_LE_READ_BUFFER_SIZE, 0, NULL); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1404 | |
| 1405 | /* Read LE Local Supported Features */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1406 | hci_req_add(req, HCI_OP_LE_READ_LOCAL_FEATURES, 0, NULL); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1407 | |
Marcel Holtmann | 747d3f0 | 2014-02-27 20:37:29 -0800 | [diff] [blame] | 1408 | /* Read LE Supported States */ |
| 1409 | hci_req_add(req, HCI_OP_LE_READ_SUPPORTED_STATES, 0, NULL); |
| 1410 | |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1411 | /* Read LE White List Size */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1412 | hci_req_add(req, HCI_OP_LE_READ_WHITE_LIST_SIZE, 0, NULL); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1413 | |
Marcel Holtmann | 747d3f0 | 2014-02-27 20:37:29 -0800 | [diff] [blame] | 1414 | /* Clear LE White List */ |
| 1415 | hci_req_add(req, HCI_OP_LE_CLEAR_WHITE_LIST, 0, NULL); |
Johan Hedberg | c73eee9 | 2013-04-19 18:35:21 +0300 | [diff] [blame] | 1416 | |
| 1417 | /* LE-only controllers have LE implicitly enabled */ |
| 1418 | if (!lmp_bredr_capable(hdev)) |
| 1419 | set_bit(HCI_LE_ENABLED, &hdev->dev_flags); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1420 | } |
| 1421 | |
| 1422 | static u8 hci_get_inquiry_mode(struct hci_dev *hdev) |
| 1423 | { |
| 1424 | if (lmp_ext_inq_capable(hdev)) |
| 1425 | return 0x02; |
| 1426 | |
| 1427 | if (lmp_inq_rssi_capable(hdev)) |
| 1428 | return 0x01; |
| 1429 | |
| 1430 | if (hdev->manufacturer == 11 && hdev->hci_rev == 0x00 && |
| 1431 | hdev->lmp_subver == 0x0757) |
| 1432 | return 0x01; |
| 1433 | |
| 1434 | if (hdev->manufacturer == 15) { |
| 1435 | if (hdev->hci_rev == 0x03 && hdev->lmp_subver == 0x6963) |
| 1436 | return 0x01; |
| 1437 | if (hdev->hci_rev == 0x09 && hdev->lmp_subver == 0x6963) |
| 1438 | return 0x01; |
| 1439 | if (hdev->hci_rev == 0x00 && hdev->lmp_subver == 0x6965) |
| 1440 | return 0x01; |
| 1441 | } |
| 1442 | |
| 1443 | if (hdev->manufacturer == 31 && hdev->hci_rev == 0x2005 && |
| 1444 | hdev->lmp_subver == 0x1805) |
| 1445 | return 0x01; |
| 1446 | |
| 1447 | return 0x00; |
| 1448 | } |
| 1449 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1450 | static void hci_setup_inquiry_mode(struct hci_request *req) |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1451 | { |
| 1452 | u8 mode; |
| 1453 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1454 | mode = hci_get_inquiry_mode(req->hdev); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1455 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1456 | hci_req_add(req, HCI_OP_WRITE_INQUIRY_MODE, 1, &mode); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1457 | } |
| 1458 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1459 | static void hci_setup_event_mask(struct hci_request *req) |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1460 | { |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1461 | struct hci_dev *hdev = req->hdev; |
| 1462 | |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1463 | /* The second byte is 0xff instead of 0x9f (two reserved bits |
| 1464 | * disabled) since a Broadcom 1.2 dongle doesn't respond to the |
| 1465 | * command otherwise. |
| 1466 | */ |
| 1467 | u8 events[8] = { 0xff, 0xff, 0xfb, 0xff, 0x00, 0x00, 0x00, 0x00 }; |
| 1468 | |
| 1469 | /* CSR 1.1 dongles does not accept any bitfield so don't try to set |
| 1470 | * any event mask for pre 1.2 devices. |
| 1471 | */ |
| 1472 | if (hdev->hci_ver < BLUETOOTH_VER_1_2) |
| 1473 | return; |
| 1474 | |
| 1475 | if (lmp_bredr_capable(hdev)) { |
| 1476 | events[4] |= 0x01; /* Flow Specification Complete */ |
| 1477 | events[4] |= 0x02; /* Inquiry Result with RSSI */ |
| 1478 | events[4] |= 0x04; /* Read Remote Extended Features Complete */ |
| 1479 | events[5] |= 0x08; /* Synchronous Connection Complete */ |
| 1480 | events[5] |= 0x10; /* Synchronous Connection Changed */ |
Marcel Holtmann | c7882cb | 2013-08-13 10:00:54 -0700 | [diff] [blame] | 1481 | } else { |
| 1482 | /* Use a different default for LE-only devices */ |
| 1483 | memset(events, 0, sizeof(events)); |
| 1484 | events[0] |= 0x10; /* Disconnection Complete */ |
Marcel Holtmann | c7882cb | 2013-08-13 10:00:54 -0700 | [diff] [blame] | 1485 | events[1] |= 0x08; /* Read Remote Version Information Complete */ |
| 1486 | events[1] |= 0x20; /* Command Complete */ |
| 1487 | events[1] |= 0x40; /* Command Status */ |
| 1488 | events[1] |= 0x80; /* Hardware Error */ |
| 1489 | events[2] |= 0x04; /* Number of Completed Packets */ |
| 1490 | events[3] |= 0x02; /* Data Buffer Overflow */ |
Marcel Holtmann | 0da71f1 | 2014-07-12 23:36:16 +0200 | [diff] [blame] | 1491 | |
| 1492 | if (hdev->le_features[0] & HCI_LE_ENCRYPTION) { |
| 1493 | events[0] |= 0x80; /* Encryption Change */ |
| 1494 | events[5] |= 0x80; /* Encryption Key Refresh Complete */ |
| 1495 | } |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1496 | } |
| 1497 | |
| 1498 | if (lmp_inq_rssi_capable(hdev)) |
| 1499 | events[4] |= 0x02; /* Inquiry Result with RSSI */ |
| 1500 | |
| 1501 | if (lmp_sniffsubr_capable(hdev)) |
| 1502 | events[5] |= 0x20; /* Sniff Subrating */ |
| 1503 | |
| 1504 | if (lmp_pause_enc_capable(hdev)) |
| 1505 | events[5] |= 0x80; /* Encryption Key Refresh Complete */ |
| 1506 | |
| 1507 | if (lmp_ext_inq_capable(hdev)) |
| 1508 | events[5] |= 0x40; /* Extended Inquiry Result */ |
| 1509 | |
| 1510 | if (lmp_no_flush_capable(hdev)) |
| 1511 | events[7] |= 0x01; /* Enhanced Flush Complete */ |
| 1512 | |
| 1513 | if (lmp_lsto_capable(hdev)) |
| 1514 | events[6] |= 0x80; /* Link Supervision Timeout Changed */ |
| 1515 | |
| 1516 | if (lmp_ssp_capable(hdev)) { |
| 1517 | events[6] |= 0x01; /* IO Capability Request */ |
| 1518 | events[6] |= 0x02; /* IO Capability Response */ |
| 1519 | events[6] |= 0x04; /* User Confirmation Request */ |
| 1520 | events[6] |= 0x08; /* User Passkey Request */ |
| 1521 | events[6] |= 0x10; /* Remote OOB Data Request */ |
| 1522 | events[6] |= 0x20; /* Simple Pairing Complete */ |
| 1523 | events[7] |= 0x04; /* User Passkey Notification */ |
| 1524 | events[7] |= 0x08; /* Keypress Notification */ |
| 1525 | events[7] |= 0x10; /* Remote Host Supported |
| 1526 | * Features Notification |
| 1527 | */ |
| 1528 | } |
| 1529 | |
| 1530 | if (lmp_le_capable(hdev)) |
| 1531 | events[7] |= 0x20; /* LE Meta-Event */ |
| 1532 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1533 | hci_req_add(req, HCI_OP_SET_EVENT_MASK, sizeof(events), events); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1534 | } |
| 1535 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1536 | static void hci_init2_req(struct hci_request *req, unsigned long opt) |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1537 | { |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1538 | struct hci_dev *hdev = req->hdev; |
| 1539 | |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1540 | if (lmp_bredr_capable(hdev)) |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1541 | bredr_setup(req); |
Johan Hedberg | 56f8790 | 2013-10-02 13:43:13 +0300 | [diff] [blame] | 1542 | else |
| 1543 | clear_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1544 | |
| 1545 | if (lmp_le_capable(hdev)) |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1546 | le_setup(req); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1547 | |
Johan Hedberg | 3f8e2d7 | 2013-07-24 02:32:46 +0300 | [diff] [blame] | 1548 | /* AVM Berlin (31), aka "BlueFRITZ!", doesn't support the read |
| 1549 | * local supported commands HCI command. |
| 1550 | */ |
| 1551 | if (hdev->manufacturer != 31 && hdev->hci_ver > BLUETOOTH_VER_1_1) |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1552 | hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1553 | |
| 1554 | if (lmp_ssp_capable(hdev)) { |
Marcel Holtmann | 57af75a | 2013-10-18 12:04:47 -0700 | [diff] [blame] | 1555 | /* When SSP is available, then the host features page |
| 1556 | * should also be available as well. However some |
| 1557 | * controllers list the max_page as 0 as long as SSP |
| 1558 | * has not been enabled. To achieve proper debugging |
| 1559 | * output, force the minimum max_page to 1 at least. |
| 1560 | */ |
| 1561 | hdev->max_page = 0x01; |
| 1562 | |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1563 | if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) { |
| 1564 | u8 mode = 0x01; |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1565 | hci_req_add(req, HCI_OP_WRITE_SSP_MODE, |
| 1566 | sizeof(mode), &mode); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1567 | } else { |
| 1568 | struct hci_cp_write_eir cp; |
| 1569 | |
| 1570 | memset(hdev->eir, 0, sizeof(hdev->eir)); |
| 1571 | memset(&cp, 0, sizeof(cp)); |
| 1572 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1573 | hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1574 | } |
| 1575 | } |
| 1576 | |
| 1577 | if (lmp_inq_rssi_capable(hdev)) |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1578 | hci_setup_inquiry_mode(req); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1579 | |
| 1580 | if (lmp_inq_tx_pwr_capable(hdev)) |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1581 | hci_req_add(req, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1582 | |
| 1583 | if (lmp_ext_feat_capable(hdev)) { |
| 1584 | struct hci_cp_read_local_ext_features cp; |
| 1585 | |
| 1586 | cp.page = 0x01; |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1587 | hci_req_add(req, HCI_OP_READ_LOCAL_EXT_FEATURES, |
| 1588 | sizeof(cp), &cp); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1589 | } |
| 1590 | |
| 1591 | if (test_bit(HCI_LINK_SECURITY, &hdev->dev_flags)) { |
| 1592 | u8 enable = 1; |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1593 | hci_req_add(req, HCI_OP_WRITE_AUTH_ENABLE, sizeof(enable), |
| 1594 | &enable); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1595 | } |
| 1596 | } |
| 1597 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1598 | static void hci_setup_link_policy(struct hci_request *req) |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1599 | { |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1600 | struct hci_dev *hdev = req->hdev; |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1601 | struct hci_cp_write_def_link_policy cp; |
| 1602 | u16 link_policy = 0; |
| 1603 | |
| 1604 | if (lmp_rswitch_capable(hdev)) |
| 1605 | link_policy |= HCI_LP_RSWITCH; |
| 1606 | if (lmp_hold_capable(hdev)) |
| 1607 | link_policy |= HCI_LP_HOLD; |
| 1608 | if (lmp_sniff_capable(hdev)) |
| 1609 | link_policy |= HCI_LP_SNIFF; |
| 1610 | if (lmp_park_capable(hdev)) |
| 1611 | link_policy |= HCI_LP_PARK; |
| 1612 | |
| 1613 | cp.policy = cpu_to_le16(link_policy); |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1614 | hci_req_add(req, HCI_OP_WRITE_DEF_LINK_POLICY, sizeof(cp), &cp); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1615 | } |
| 1616 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1617 | static void hci_set_le_support(struct hci_request *req) |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1618 | { |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1619 | struct hci_dev *hdev = req->hdev; |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1620 | struct hci_cp_write_le_host_supported cp; |
| 1621 | |
Johan Hedberg | c73eee9 | 2013-04-19 18:35:21 +0300 | [diff] [blame] | 1622 | /* LE-only devices do not support explicit enablement */ |
| 1623 | if (!lmp_bredr_capable(hdev)) |
| 1624 | return; |
| 1625 | |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1626 | memset(&cp, 0, sizeof(cp)); |
| 1627 | |
| 1628 | if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) { |
| 1629 | cp.le = 0x01; |
Marcel Holtmann | 32226e4 | 2014-07-24 20:04:16 +0200 | [diff] [blame] | 1630 | cp.simul = 0x00; |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1631 | } |
| 1632 | |
| 1633 | if (cp.le != lmp_host_le_capable(hdev)) |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1634 | hci_req_add(req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp), |
| 1635 | &cp); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1636 | } |
| 1637 | |
Johan Hedberg | d62e6d6 | 2013-09-13 11:40:02 +0300 | [diff] [blame] | 1638 | static void hci_set_event_mask_page_2(struct hci_request *req) |
| 1639 | { |
| 1640 | struct hci_dev *hdev = req->hdev; |
| 1641 | u8 events[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
| 1642 | |
| 1643 | /* If Connectionless Slave Broadcast master role is supported |
| 1644 | * enable all necessary events for it. |
| 1645 | */ |
Marcel Holtmann | 53b834d2 | 2013-12-08 11:55:33 -0800 | [diff] [blame] | 1646 | if (lmp_csb_master_capable(hdev)) { |
Johan Hedberg | d62e6d6 | 2013-09-13 11:40:02 +0300 | [diff] [blame] | 1647 | events[1] |= 0x40; /* Triggered Clock Capture */ |
| 1648 | events[1] |= 0x80; /* Synchronization Train Complete */ |
| 1649 | events[2] |= 0x10; /* Slave Page Response Timeout */ |
| 1650 | events[2] |= 0x20; /* CSB Channel Map Change */ |
| 1651 | } |
| 1652 | |
| 1653 | /* If Connectionless Slave Broadcast slave role is supported |
| 1654 | * enable all necessary events for it. |
| 1655 | */ |
Marcel Holtmann | 53b834d2 | 2013-12-08 11:55:33 -0800 | [diff] [blame] | 1656 | if (lmp_csb_slave_capable(hdev)) { |
Johan Hedberg | d62e6d6 | 2013-09-13 11:40:02 +0300 | [diff] [blame] | 1657 | events[2] |= 0x01; /* Synchronization Train Received */ |
| 1658 | events[2] |= 0x02; /* CSB Receive */ |
| 1659 | events[2] |= 0x04; /* CSB Timeout */ |
| 1660 | events[2] |= 0x08; /* Truncated Page Complete */ |
| 1661 | } |
| 1662 | |
Marcel Holtmann | 40c59fc | 2014-01-10 02:07:21 -0800 | [diff] [blame] | 1663 | /* Enable Authenticated Payload Timeout Expired event if supported */ |
Marcel Holtmann | cd7ca0e | 2014-07-09 09:49:05 +0200 | [diff] [blame] | 1664 | if (lmp_ping_capable(hdev) || hdev->le_features[0] & HCI_LE_PING) |
Marcel Holtmann | 40c59fc | 2014-01-10 02:07:21 -0800 | [diff] [blame] | 1665 | events[2] |= 0x80; |
| 1666 | |
Johan Hedberg | d62e6d6 | 2013-09-13 11:40:02 +0300 | [diff] [blame] | 1667 | hci_req_add(req, HCI_OP_SET_EVENT_MASK_PAGE_2, sizeof(events), events); |
| 1668 | } |
| 1669 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1670 | static void hci_init3_req(struct hci_request *req, unsigned long opt) |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1671 | { |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1672 | struct hci_dev *hdev = req->hdev; |
Johan Hedberg | d2c5d77 | 2013-04-17 15:00:52 +0300 | [diff] [blame] | 1673 | u8 p; |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1674 | |
Marcel Holtmann | 0da71f1 | 2014-07-12 23:36:16 +0200 | [diff] [blame] | 1675 | hci_setup_event_mask(req); |
| 1676 | |
Gustavo Padovan | b8f4e06 | 2013-06-13 12:34:31 +0100 | [diff] [blame] | 1677 | /* Some Broadcom based Bluetooth controllers do not support the |
| 1678 | * Delete Stored Link Key command. They are clearly indicating its |
| 1679 | * absence in the bit mask of supported commands. |
| 1680 | * |
| 1681 | * Check the supported commands and only if the the command is marked |
| 1682 | * as supported send it. If not supported assume that the controller |
| 1683 | * does not have actual support for stored link keys which makes this |
| 1684 | * command redundant anyway. |
Marcel Holtmann | f9f462f | 2014-01-03 03:02:35 -0800 | [diff] [blame] | 1685 | * |
| 1686 | * Some controllers indicate that they support handling deleting |
| 1687 | * stored link keys, but they don't. The quirk lets a driver |
| 1688 | * just disable this command. |
Marcel Holtmann | 637b4ca | 2013-07-01 14:14:46 -0700 | [diff] [blame] | 1689 | */ |
Marcel Holtmann | f9f462f | 2014-01-03 03:02:35 -0800 | [diff] [blame] | 1690 | if (hdev->commands[6] & 0x80 && |
| 1691 | !test_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks)) { |
Johan Hedberg | 59f45d5 | 2013-06-13 11:01:13 +0300 | [diff] [blame] | 1692 | struct hci_cp_delete_stored_link_key cp; |
| 1693 | |
| 1694 | bacpy(&cp.bdaddr, BDADDR_ANY); |
| 1695 | cp.delete_all = 0x01; |
| 1696 | hci_req_add(req, HCI_OP_DELETE_STORED_LINK_KEY, |
| 1697 | sizeof(cp), &cp); |
| 1698 | } |
| 1699 | |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1700 | if (hdev->commands[5] & 0x10) |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1701 | hci_setup_link_policy(req); |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1702 | |
Andre Guedes | 9193c6e | 2014-07-01 18:10:09 -0300 | [diff] [blame] | 1703 | if (lmp_le_capable(hdev)) { |
| 1704 | u8 events[8]; |
| 1705 | |
| 1706 | memset(events, 0, sizeof(events)); |
Marcel Holtmann | 4d6c705 | 2014-07-13 00:29:22 +0200 | [diff] [blame] | 1707 | events[0] = 0x0f; |
| 1708 | |
| 1709 | if (hdev->le_features[0] & HCI_LE_ENCRYPTION) |
| 1710 | events[0] |= 0x10; /* LE Long Term Key Request */ |
Andre Guedes | 662bc2e | 2014-07-01 18:10:10 -0300 | [diff] [blame] | 1711 | |
| 1712 | /* If controller supports the Connection Parameters Request |
| 1713 | * Link Layer Procedure, enable the corresponding event. |
| 1714 | */ |
| 1715 | if (hdev->le_features[0] & HCI_LE_CONN_PARAM_REQ_PROC) |
| 1716 | events[0] |= 0x20; /* LE Remote Connection |
| 1717 | * Parameter Request |
| 1718 | */ |
| 1719 | |
Andre Guedes | 9193c6e | 2014-07-01 18:10:09 -0300 | [diff] [blame] | 1720 | hci_req_add(req, HCI_OP_LE_SET_EVENT_MASK, sizeof(events), |
| 1721 | events); |
| 1722 | |
Marcel Holtmann | 15a49cc | 2014-07-12 23:20:50 +0200 | [diff] [blame] | 1723 | if (hdev->commands[25] & 0x40) { |
| 1724 | /* Read LE Advertising Channel TX Power */ |
| 1725 | hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL); |
| 1726 | } |
| 1727 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1728 | hci_set_le_support(req); |
Andre Guedes | 9193c6e | 2014-07-01 18:10:09 -0300 | [diff] [blame] | 1729 | } |
Johan Hedberg | d2c5d77 | 2013-04-17 15:00:52 +0300 | [diff] [blame] | 1730 | |
| 1731 | /* Read features beyond page 1 if available */ |
| 1732 | for (p = 2; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) { |
| 1733 | struct hci_cp_read_local_ext_features cp; |
| 1734 | |
| 1735 | cp.page = p; |
| 1736 | hci_req_add(req, HCI_OP_READ_LOCAL_EXT_FEATURES, |
| 1737 | sizeof(cp), &cp); |
| 1738 | } |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1739 | } |
| 1740 | |
Johan Hedberg | 5d4e7e8 | 2013-09-13 11:40:01 +0300 | [diff] [blame] | 1741 | static void hci_init4_req(struct hci_request *req, unsigned long opt) |
| 1742 | { |
| 1743 | struct hci_dev *hdev = req->hdev; |
| 1744 | |
Johan Hedberg | d62e6d6 | 2013-09-13 11:40:02 +0300 | [diff] [blame] | 1745 | /* Set event mask page 2 if the HCI command for it is supported */ |
| 1746 | if (hdev->commands[22] & 0x04) |
| 1747 | hci_set_event_mask_page_2(req); |
| 1748 | |
Marcel Holtmann | 109e319 | 2014-07-23 19:24:56 +0200 | [diff] [blame] | 1749 | /* Read local codec list if the HCI command is supported */ |
| 1750 | if (hdev->commands[29] & 0x20) |
| 1751 | hci_req_add(req, HCI_OP_READ_LOCAL_CODECS, 0, NULL); |
| 1752 | |
Marcel Holtmann | f4fe73e | 2014-07-23 19:24:57 +0200 | [diff] [blame] | 1753 | /* Get MWS transport configuration if the HCI command is supported */ |
| 1754 | if (hdev->commands[30] & 0x08) |
| 1755 | hci_req_add(req, HCI_OP_GET_MWS_TRANSPORT_CONFIG, 0, NULL); |
| 1756 | |
Johan Hedberg | 5d4e7e8 | 2013-09-13 11:40:01 +0300 | [diff] [blame] | 1757 | /* Check for Synchronization Train support */ |
Marcel Holtmann | 53b834d2 | 2013-12-08 11:55:33 -0800 | [diff] [blame] | 1758 | if (lmp_sync_train_capable(hdev)) |
Johan Hedberg | 5d4e7e8 | 2013-09-13 11:40:01 +0300 | [diff] [blame] | 1759 | hci_req_add(req, HCI_OP_READ_SYNC_TRAIN_PARAMS, 0, NULL); |
Marcel Holtmann | a6d0d69 | 2014-01-10 02:07:24 -0800 | [diff] [blame] | 1760 | |
| 1761 | /* Enable Secure Connections if supported and configured */ |
Marcel Holtmann | 5afeac14 | 2014-01-10 02:07:27 -0800 | [diff] [blame] | 1762 | if ((lmp_sc_capable(hdev) || |
Marcel Holtmann | 111902f | 2014-06-21 04:53:17 +0200 | [diff] [blame] | 1763 | test_bit(HCI_FORCE_SC, &hdev->dbg_flags)) && |
Marcel Holtmann | a6d0d69 | 2014-01-10 02:07:24 -0800 | [diff] [blame] | 1764 | test_bit(HCI_SC_ENABLED, &hdev->dev_flags)) { |
| 1765 | u8 support = 0x01; |
| 1766 | hci_req_add(req, HCI_OP_WRITE_SC_SUPPORT, |
| 1767 | sizeof(support), &support); |
| 1768 | } |
Johan Hedberg | 5d4e7e8 | 2013-09-13 11:40:01 +0300 | [diff] [blame] | 1769 | } |
| 1770 | |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1771 | static int __hci_init(struct hci_dev *hdev) |
| 1772 | { |
| 1773 | int err; |
| 1774 | |
| 1775 | err = __hci_req_sync(hdev, hci_init1_req, 0, HCI_INIT_TIMEOUT); |
| 1776 | if (err < 0) |
| 1777 | return err; |
| 1778 | |
Marcel Holtmann | 4b4148e | 2013-10-19 07:09:12 -0700 | [diff] [blame] | 1779 | /* The Device Under Test (DUT) mode is special and available for |
| 1780 | * all controller types. So just create it early on. |
| 1781 | */ |
| 1782 | if (test_bit(HCI_SETUP, &hdev->dev_flags)) { |
| 1783 | debugfs_create_file("dut_mode", 0644, hdev->debugfs, hdev, |
| 1784 | &dut_mode_fops); |
| 1785 | } |
| 1786 | |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1787 | /* HCI_BREDR covers both single-mode LE, BR/EDR and dual-mode |
| 1788 | * BR/EDR/LE type controllers. AMP controllers only need the |
| 1789 | * first stage init. |
| 1790 | */ |
| 1791 | if (hdev->dev_type != HCI_BREDR) |
| 1792 | return 0; |
| 1793 | |
| 1794 | err = __hci_req_sync(hdev, hci_init2_req, 0, HCI_INIT_TIMEOUT); |
| 1795 | if (err < 0) |
| 1796 | return err; |
| 1797 | |
Johan Hedberg | 5d4e7e8 | 2013-09-13 11:40:01 +0300 | [diff] [blame] | 1798 | err = __hci_req_sync(hdev, hci_init3_req, 0, HCI_INIT_TIMEOUT); |
| 1799 | if (err < 0) |
| 1800 | return err; |
| 1801 | |
Marcel Holtmann | baf27f6 | 2013-10-16 03:28:55 -0700 | [diff] [blame] | 1802 | err = __hci_req_sync(hdev, hci_init4_req, 0, HCI_INIT_TIMEOUT); |
| 1803 | if (err < 0) |
| 1804 | return err; |
| 1805 | |
| 1806 | /* Only create debugfs entries during the initial setup |
| 1807 | * phase and not every time the controller gets powered on. |
| 1808 | */ |
| 1809 | if (!test_bit(HCI_SETUP, &hdev->dev_flags)) |
| 1810 | return 0; |
| 1811 | |
Marcel Holtmann | dfb826a | 2013-10-18 12:04:46 -0700 | [diff] [blame] | 1812 | debugfs_create_file("features", 0444, hdev->debugfs, hdev, |
| 1813 | &features_fops); |
Marcel Holtmann | ceeb3bc | 2013-10-18 12:04:49 -0700 | [diff] [blame] | 1814 | debugfs_create_u16("manufacturer", 0444, hdev->debugfs, |
| 1815 | &hdev->manufacturer); |
| 1816 | debugfs_create_u8("hci_version", 0444, hdev->debugfs, &hdev->hci_ver); |
| 1817 | debugfs_create_u16("hci_revision", 0444, hdev->debugfs, &hdev->hci_rev); |
Marcel Holtmann | 70afe0b | 2013-10-17 17:24:14 -0700 | [diff] [blame] | 1818 | debugfs_create_file("blacklist", 0444, hdev->debugfs, hdev, |
| 1819 | &blacklist_fops); |
Johan Hedberg | 6659358 | 2014-07-09 12:59:14 +0300 | [diff] [blame] | 1820 | debugfs_create_file("whitelist", 0444, hdev->debugfs, hdev, |
| 1821 | &whitelist_fops); |
Marcel Holtmann | 4721983 | 2013-10-17 17:24:15 -0700 | [diff] [blame] | 1822 | debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops); |
| 1823 | |
Andrzej Kaczmarek | 31ad169 | 2014-05-14 13:43:02 +0200 | [diff] [blame] | 1824 | debugfs_create_file("conn_info_min_age", 0644, hdev->debugfs, hdev, |
| 1825 | &conn_info_min_age_fops); |
| 1826 | debugfs_create_file("conn_info_max_age", 0644, hdev->debugfs, hdev, |
| 1827 | &conn_info_max_age_fops); |
| 1828 | |
Marcel Holtmann | baf27f6 | 2013-10-16 03:28:55 -0700 | [diff] [blame] | 1829 | if (lmp_bredr_capable(hdev)) { |
| 1830 | debugfs_create_file("inquiry_cache", 0444, hdev->debugfs, |
| 1831 | hdev, &inquiry_cache_fops); |
Marcel Holtmann | 02d08d1 | 2013-10-18 12:04:52 -0700 | [diff] [blame] | 1832 | debugfs_create_file("link_keys", 0400, hdev->debugfs, |
| 1833 | hdev, &link_keys_fops); |
Marcel Holtmann | babdbb3 | 2013-10-18 12:04:51 -0700 | [diff] [blame] | 1834 | debugfs_create_file("dev_class", 0444, hdev->debugfs, |
| 1835 | hdev, &dev_class_fops); |
Marcel Holtmann | 041000b | 2013-10-17 12:02:31 -0700 | [diff] [blame] | 1836 | debugfs_create_file("voice_setting", 0444, hdev->debugfs, |
| 1837 | hdev, &voice_setting_fops); |
Marcel Holtmann | baf27f6 | 2013-10-16 03:28:55 -0700 | [diff] [blame] | 1838 | } |
| 1839 | |
Marcel Holtmann | 06f5b77 | 2013-10-19 07:09:11 -0700 | [diff] [blame] | 1840 | if (lmp_ssp_capable(hdev)) { |
Marcel Holtmann | ebd1e33 | 2013-10-17 10:54:46 -0700 | [diff] [blame] | 1841 | debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs, |
| 1842 | hdev, &auto_accept_delay_fops); |
Marcel Holtmann | 5afeac14 | 2014-01-10 02:07:27 -0800 | [diff] [blame] | 1843 | debugfs_create_file("force_sc_support", 0644, hdev->debugfs, |
| 1844 | hdev, &force_sc_support_fops); |
Marcel Holtmann | 134c2a8 | 2014-01-15 22:37:42 -0800 | [diff] [blame] | 1845 | debugfs_create_file("sc_only_mode", 0444, hdev->debugfs, |
| 1846 | hdev, &sc_only_mode_fops); |
Marcel Holtmann | 06f5b77 | 2013-10-19 07:09:11 -0700 | [diff] [blame] | 1847 | } |
Marcel Holtmann | ebd1e33 | 2013-10-17 10:54:46 -0700 | [diff] [blame] | 1848 | |
Marcel Holtmann | 2bfa353 | 2013-10-17 19:16:02 -0700 | [diff] [blame] | 1849 | if (lmp_sniff_capable(hdev)) { |
| 1850 | debugfs_create_file("idle_timeout", 0644, hdev->debugfs, |
| 1851 | hdev, &idle_timeout_fops); |
| 1852 | debugfs_create_file("sniff_min_interval", 0644, hdev->debugfs, |
| 1853 | hdev, &sniff_min_interval_fops); |
| 1854 | debugfs_create_file("sniff_max_interval", 0644, hdev->debugfs, |
| 1855 | hdev, &sniff_max_interval_fops); |
| 1856 | } |
| 1857 | |
Marcel Holtmann | d0f729b | 2013-10-18 15:23:46 -0700 | [diff] [blame] | 1858 | if (lmp_le_capable(hdev)) { |
Marcel Holtmann | ac34581 | 2014-02-23 12:44:25 -0800 | [diff] [blame] | 1859 | debugfs_create_file("identity", 0400, hdev->debugfs, |
| 1860 | hdev, &identity_fops); |
| 1861 | debugfs_create_file("rpa_timeout", 0644, hdev->debugfs, |
| 1862 | hdev, &rpa_timeout_fops); |
Marcel Holtmann | 7a4cd51 | 2014-02-19 19:52:13 -0800 | [diff] [blame] | 1863 | debugfs_create_file("random_address", 0444, hdev->debugfs, |
| 1864 | hdev, &random_address_fops); |
Marcel Holtmann | b32bba6 | 2014-02-19 19:31:26 -0800 | [diff] [blame] | 1865 | debugfs_create_file("static_address", 0444, hdev->debugfs, |
| 1866 | hdev, &static_address_fops); |
| 1867 | |
| 1868 | /* For controllers with a public address, provide a debug |
| 1869 | * option to force the usage of the configured static |
| 1870 | * address. By default the public address is used. |
| 1871 | */ |
| 1872 | if (bacmp(&hdev->bdaddr, BDADDR_ANY)) |
| 1873 | debugfs_create_file("force_static_address", 0644, |
| 1874 | hdev->debugfs, hdev, |
| 1875 | &force_static_address_fops); |
| 1876 | |
Marcel Holtmann | d0f729b | 2013-10-18 15:23:46 -0700 | [diff] [blame] | 1877 | debugfs_create_u8("white_list_size", 0444, hdev->debugfs, |
| 1878 | &hdev->le_white_list_size); |
Marcel Holtmann | d2ab0ac | 2014-02-27 20:37:30 -0800 | [diff] [blame] | 1879 | debugfs_create_file("white_list", 0444, hdev->debugfs, hdev, |
| 1880 | &white_list_fops); |
Marcel Holtmann | 3698d70 | 2014-02-18 21:54:49 -0800 | [diff] [blame] | 1881 | debugfs_create_file("identity_resolving_keys", 0400, |
| 1882 | hdev->debugfs, hdev, |
| 1883 | &identity_resolving_keys_fops); |
Marcel Holtmann | 8f8625c | 2013-10-18 15:56:57 -0700 | [diff] [blame] | 1884 | debugfs_create_file("long_term_keys", 0400, hdev->debugfs, |
| 1885 | hdev, &long_term_keys_fops); |
Marcel Holtmann | 4e70c7e | 2013-10-19 07:09:13 -0700 | [diff] [blame] | 1886 | debugfs_create_file("conn_min_interval", 0644, hdev->debugfs, |
| 1887 | hdev, &conn_min_interval_fops); |
| 1888 | debugfs_create_file("conn_max_interval", 0644, hdev->debugfs, |
| 1889 | hdev, &conn_max_interval_fops); |
Marcel Holtmann | 816a93d | 2014-06-30 12:34:37 +0200 | [diff] [blame] | 1890 | debugfs_create_file("conn_latency", 0644, hdev->debugfs, |
| 1891 | hdev, &conn_latency_fops); |
Marcel Holtmann | f164957 | 2014-06-30 12:34:38 +0200 | [diff] [blame] | 1892 | debugfs_create_file("supervision_timeout", 0644, hdev->debugfs, |
| 1893 | hdev, &supervision_timeout_fops); |
Marcel Holtmann | 3f959d4 | 2014-02-20 11:55:56 -0800 | [diff] [blame] | 1894 | debugfs_create_file("adv_channel_map", 0644, hdev->debugfs, |
| 1895 | hdev, &adv_channel_map_fops); |
Georg Lukas | 729a105 | 2014-07-26 13:59:58 +0200 | [diff] [blame] | 1896 | debugfs_create_file("adv_min_interval", 0644, hdev->debugfs, |
| 1897 | hdev, &adv_min_interval_fops); |
| 1898 | debugfs_create_file("adv_max_interval", 0644, hdev->debugfs, |
| 1899 | hdev, &adv_max_interval_fops); |
Marcel Holtmann | 0b3c7d3 | 2014-06-29 16:15:49 +0200 | [diff] [blame] | 1900 | debugfs_create_file("device_list", 0444, hdev->debugfs, hdev, |
| 1901 | &device_list_fops); |
Lukasz Rymanowski | b9a7a61 | 2014-03-27 20:55:20 +0100 | [diff] [blame] | 1902 | debugfs_create_u16("discov_interleaved_timeout", 0644, |
| 1903 | hdev->debugfs, |
| 1904 | &hdev->discov_interleaved_timeout); |
Johan Hedberg | 5450691 | 2014-08-08 09:32:51 +0300 | [diff] [blame] | 1905 | |
Johan Hedberg | 711eafe | 2014-08-08 09:32:52 +0300 | [diff] [blame] | 1906 | smp_register(hdev); |
Marcel Holtmann | d0f729b | 2013-10-18 15:23:46 -0700 | [diff] [blame] | 1907 | } |
Marcel Holtmann | e7b8fc9 | 2013-10-17 11:45:09 -0700 | [diff] [blame] | 1908 | |
Marcel Holtmann | baf27f6 | 2013-10-16 03:28:55 -0700 | [diff] [blame] | 1909 | return 0; |
Johan Hedberg | 2177bab | 2013-03-05 20:37:43 +0200 | [diff] [blame] | 1910 | } |
| 1911 | |
Marcel Holtmann | 0ebca7d | 2014-07-05 10:48:02 +0200 | [diff] [blame] | 1912 | static void hci_init0_req(struct hci_request *req, unsigned long opt) |
| 1913 | { |
| 1914 | struct hci_dev *hdev = req->hdev; |
| 1915 | |
| 1916 | BT_DBG("%s %ld", hdev->name, opt); |
| 1917 | |
| 1918 | /* Reset */ |
| 1919 | if (!test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) |
| 1920 | hci_reset_req(req, 0); |
| 1921 | |
| 1922 | /* Read Local Version */ |
| 1923 | hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL); |
| 1924 | |
| 1925 | /* Read BD Address */ |
| 1926 | if (hdev->set_bdaddr) |
| 1927 | hci_req_add(req, HCI_OP_READ_BD_ADDR, 0, NULL); |
| 1928 | } |
| 1929 | |
| 1930 | static int __hci_unconf_init(struct hci_dev *hdev) |
| 1931 | { |
| 1932 | int err; |
| 1933 | |
Marcel Holtmann | cc78b44 | 2014-07-06 13:43:20 +0200 | [diff] [blame] | 1934 | if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks)) |
| 1935 | return 0; |
| 1936 | |
Marcel Holtmann | 0ebca7d | 2014-07-05 10:48:02 +0200 | [diff] [blame] | 1937 | err = __hci_req_sync(hdev, hci_init0_req, 0, HCI_INIT_TIMEOUT); |
| 1938 | if (err < 0) |
| 1939 | return err; |
| 1940 | |
| 1941 | return 0; |
| 1942 | } |
| 1943 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1944 | static void hci_scan_req(struct hci_request *req, unsigned long opt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1945 | { |
| 1946 | __u8 scan = opt; |
| 1947 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1948 | BT_DBG("%s %x", req->hdev->name, scan); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1949 | |
| 1950 | /* Inquiry and Page scans */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1951 | hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1952 | } |
| 1953 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1954 | static void hci_auth_req(struct hci_request *req, unsigned long opt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1955 | { |
| 1956 | __u8 auth = opt; |
| 1957 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1958 | BT_DBG("%s %x", req->hdev->name, auth); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1959 | |
| 1960 | /* Authentication */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1961 | hci_req_add(req, HCI_OP_WRITE_AUTH_ENABLE, 1, &auth); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1962 | } |
| 1963 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1964 | static void hci_encrypt_req(struct hci_request *req, unsigned long opt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1965 | { |
| 1966 | __u8 encrypt = opt; |
| 1967 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1968 | BT_DBG("%s %x", req->hdev->name, encrypt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1969 | |
Marcel Holtmann | e4e8e37 | 2008-07-14 20:13:47 +0200 | [diff] [blame] | 1970 | /* Encryption */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1971 | hci_req_add(req, HCI_OP_WRITE_ENCRYPT_MODE, 1, &encrypt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1972 | } |
| 1973 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1974 | static void hci_linkpol_req(struct hci_request *req, unsigned long opt) |
Marcel Holtmann | e4e8e37 | 2008-07-14 20:13:47 +0200 | [diff] [blame] | 1975 | { |
| 1976 | __le16 policy = cpu_to_le16(opt); |
| 1977 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1978 | BT_DBG("%s %x", req->hdev->name, policy); |
Marcel Holtmann | e4e8e37 | 2008-07-14 20:13:47 +0200 | [diff] [blame] | 1979 | |
| 1980 | /* Default link policy */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 1981 | hci_req_add(req, HCI_OP_WRITE_DEF_LINK_POLICY, 2, &policy); |
Marcel Holtmann | e4e8e37 | 2008-07-14 20:13:47 +0200 | [diff] [blame] | 1982 | } |
| 1983 | |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 1984 | /* Get HCI device by index. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1985 | * Device is held on return. */ |
| 1986 | struct hci_dev *hci_dev_get(int index) |
| 1987 | { |
Luiz Augusto von Dentz | 8035ded | 2011-11-01 10:58:56 +0200 | [diff] [blame] | 1988 | struct hci_dev *hdev = NULL, *d; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1989 | |
| 1990 | BT_DBG("%d", index); |
| 1991 | |
| 1992 | if (index < 0) |
| 1993 | return NULL; |
| 1994 | |
| 1995 | read_lock(&hci_dev_list_lock); |
Luiz Augusto von Dentz | 8035ded | 2011-11-01 10:58:56 +0200 | [diff] [blame] | 1996 | list_for_each_entry(d, &hci_dev_list, list) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1997 | if (d->id == index) { |
| 1998 | hdev = hci_dev_hold(d); |
| 1999 | break; |
| 2000 | } |
| 2001 | } |
| 2002 | read_unlock(&hci_dev_list_lock); |
| 2003 | return hdev; |
| 2004 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2005 | |
| 2006 | /* ---- Inquiry support ---- */ |
Johan Hedberg | ff9ef57 | 2012-01-04 14:23:45 +0200 | [diff] [blame] | 2007 | |
Johan Hedberg | 30dc78e | 2012-01-04 15:44:20 +0200 | [diff] [blame] | 2008 | bool hci_discovery_active(struct hci_dev *hdev) |
| 2009 | { |
| 2010 | struct discovery_state *discov = &hdev->discovery; |
| 2011 | |
Andre Guedes | 6fbe195 | 2012-02-03 17:47:58 -0300 | [diff] [blame] | 2012 | switch (discov->state) { |
Andre Guedes | 343f935 | 2012-02-17 20:39:37 -0300 | [diff] [blame] | 2013 | case DISCOVERY_FINDING: |
Andre Guedes | 6fbe195 | 2012-02-03 17:47:58 -0300 | [diff] [blame] | 2014 | case DISCOVERY_RESOLVING: |
Johan Hedberg | 30dc78e | 2012-01-04 15:44:20 +0200 | [diff] [blame] | 2015 | return true; |
| 2016 | |
Andre Guedes | 6fbe195 | 2012-02-03 17:47:58 -0300 | [diff] [blame] | 2017 | default: |
| 2018 | return false; |
| 2019 | } |
Johan Hedberg | 30dc78e | 2012-01-04 15:44:20 +0200 | [diff] [blame] | 2020 | } |
| 2021 | |
Johan Hedberg | ff9ef57 | 2012-01-04 14:23:45 +0200 | [diff] [blame] | 2022 | void hci_discovery_set_state(struct hci_dev *hdev, int state) |
| 2023 | { |
Johan Hedberg | bb3e0a3 | 2014-07-07 13:24:58 +0300 | [diff] [blame] | 2024 | int old_state = hdev->discovery.state; |
| 2025 | |
Johan Hedberg | ff9ef57 | 2012-01-04 14:23:45 +0200 | [diff] [blame] | 2026 | BT_DBG("%s state %u -> %u", hdev->name, hdev->discovery.state, state); |
| 2027 | |
Johan Hedberg | bb3e0a3 | 2014-07-07 13:24:58 +0300 | [diff] [blame] | 2028 | if (old_state == state) |
Johan Hedberg | ff9ef57 | 2012-01-04 14:23:45 +0200 | [diff] [blame] | 2029 | return; |
| 2030 | |
Johan Hedberg | bb3e0a3 | 2014-07-07 13:24:58 +0300 | [diff] [blame] | 2031 | hdev->discovery.state = state; |
| 2032 | |
Johan Hedberg | ff9ef57 | 2012-01-04 14:23:45 +0200 | [diff] [blame] | 2033 | switch (state) { |
| 2034 | case DISCOVERY_STOPPED: |
Andre Guedes | c54c386 | 2014-02-26 20:21:50 -0300 | [diff] [blame] | 2035 | hci_update_background_scan(hdev); |
| 2036 | |
Johan Hedberg | bb3e0a3 | 2014-07-07 13:24:58 +0300 | [diff] [blame] | 2037 | if (old_state != DISCOVERY_STARTING) |
Andre Guedes | 7b99b65 | 2012-02-13 15:41:02 -0300 | [diff] [blame] | 2038 | mgmt_discovering(hdev, 0); |
Johan Hedberg | ff9ef57 | 2012-01-04 14:23:45 +0200 | [diff] [blame] | 2039 | break; |
| 2040 | case DISCOVERY_STARTING: |
| 2041 | break; |
Andre Guedes | 343f935 | 2012-02-17 20:39:37 -0300 | [diff] [blame] | 2042 | case DISCOVERY_FINDING: |
Johan Hedberg | ff9ef57 | 2012-01-04 14:23:45 +0200 | [diff] [blame] | 2043 | mgmt_discovering(hdev, 1); |
| 2044 | break; |
Johan Hedberg | 30dc78e | 2012-01-04 15:44:20 +0200 | [diff] [blame] | 2045 | case DISCOVERY_RESOLVING: |
| 2046 | break; |
Johan Hedberg | ff9ef57 | 2012-01-04 14:23:45 +0200 | [diff] [blame] | 2047 | case DISCOVERY_STOPPING: |
| 2048 | break; |
| 2049 | } |
Johan Hedberg | ff9ef57 | 2012-01-04 14:23:45 +0200 | [diff] [blame] | 2050 | } |
| 2051 | |
Andre Guedes | 1f9b9a5 | 2013-04-30 15:29:27 -0300 | [diff] [blame] | 2052 | void hci_inquiry_cache_flush(struct hci_dev *hdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2053 | { |
Johan Hedberg | 3088351 | 2012-01-04 14:16:21 +0200 | [diff] [blame] | 2054 | struct discovery_state *cache = &hdev->discovery; |
Johan Hedberg | b57c1a5 | 2012-01-03 16:03:00 +0200 | [diff] [blame] | 2055 | struct inquiry_entry *p, *n; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2056 | |
Johan Hedberg | 561aafb | 2012-01-04 13:31:59 +0200 | [diff] [blame] | 2057 | list_for_each_entry_safe(p, n, &cache->all, all) { |
| 2058 | list_del(&p->all); |
Johan Hedberg | b57c1a5 | 2012-01-03 16:03:00 +0200 | [diff] [blame] | 2059 | kfree(p); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2060 | } |
Johan Hedberg | 561aafb | 2012-01-04 13:31:59 +0200 | [diff] [blame] | 2061 | |
| 2062 | INIT_LIST_HEAD(&cache->unknown); |
| 2063 | INIT_LIST_HEAD(&cache->resolve); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2064 | } |
| 2065 | |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 2066 | struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, |
| 2067 | bdaddr_t *bdaddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2068 | { |
Johan Hedberg | 3088351 | 2012-01-04 14:16:21 +0200 | [diff] [blame] | 2069 | struct discovery_state *cache = &hdev->discovery; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2070 | struct inquiry_entry *e; |
| 2071 | |
Andrei Emeltchenko | 6ed93dc | 2012-09-25 12:49:43 +0300 | [diff] [blame] | 2072 | BT_DBG("cache %p, %pMR", cache, bdaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2073 | |
Johan Hedberg | 561aafb | 2012-01-04 13:31:59 +0200 | [diff] [blame] | 2074 | list_for_each_entry(e, &cache->all, all) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2075 | if (!bacmp(&e->data.bdaddr, bdaddr)) |
Johan Hedberg | b57c1a5 | 2012-01-03 16:03:00 +0200 | [diff] [blame] | 2076 | return e; |
| 2077 | } |
| 2078 | |
| 2079 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2080 | } |
| 2081 | |
Johan Hedberg | 561aafb | 2012-01-04 13:31:59 +0200 | [diff] [blame] | 2082 | struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, |
Gustavo F. Padovan | 0412468 | 2012-03-08 01:25:00 -0300 | [diff] [blame] | 2083 | bdaddr_t *bdaddr) |
Johan Hedberg | 561aafb | 2012-01-04 13:31:59 +0200 | [diff] [blame] | 2084 | { |
Johan Hedberg | 3088351 | 2012-01-04 14:16:21 +0200 | [diff] [blame] | 2085 | struct discovery_state *cache = &hdev->discovery; |
Johan Hedberg | 561aafb | 2012-01-04 13:31:59 +0200 | [diff] [blame] | 2086 | struct inquiry_entry *e; |
| 2087 | |
Andrei Emeltchenko | 6ed93dc | 2012-09-25 12:49:43 +0300 | [diff] [blame] | 2088 | BT_DBG("cache %p, %pMR", cache, bdaddr); |
Johan Hedberg | 561aafb | 2012-01-04 13:31:59 +0200 | [diff] [blame] | 2089 | |
| 2090 | list_for_each_entry(e, &cache->unknown, list) { |
| 2091 | if (!bacmp(&e->data.bdaddr, bdaddr)) |
| 2092 | return e; |
| 2093 | } |
| 2094 | |
| 2095 | return NULL; |
| 2096 | } |
| 2097 | |
Johan Hedberg | 30dc78e | 2012-01-04 15:44:20 +0200 | [diff] [blame] | 2098 | struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, |
Gustavo F. Padovan | 0412468 | 2012-03-08 01:25:00 -0300 | [diff] [blame] | 2099 | bdaddr_t *bdaddr, |
| 2100 | int state) |
Johan Hedberg | 30dc78e | 2012-01-04 15:44:20 +0200 | [diff] [blame] | 2101 | { |
| 2102 | struct discovery_state *cache = &hdev->discovery; |
| 2103 | struct inquiry_entry *e; |
| 2104 | |
Andrei Emeltchenko | 6ed93dc | 2012-09-25 12:49:43 +0300 | [diff] [blame] | 2105 | BT_DBG("cache %p bdaddr %pMR state %d", cache, bdaddr, state); |
Johan Hedberg | 30dc78e | 2012-01-04 15:44:20 +0200 | [diff] [blame] | 2106 | |
| 2107 | list_for_each_entry(e, &cache->resolve, list) { |
| 2108 | if (!bacmp(bdaddr, BDADDR_ANY) && e->name_state == state) |
| 2109 | return e; |
| 2110 | if (!bacmp(&e->data.bdaddr, bdaddr)) |
| 2111 | return e; |
| 2112 | } |
| 2113 | |
| 2114 | return NULL; |
| 2115 | } |
| 2116 | |
Johan Hedberg | a3d4e20 | 2012-01-09 00:53:02 +0200 | [diff] [blame] | 2117 | void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, |
Gustavo F. Padovan | 0412468 | 2012-03-08 01:25:00 -0300 | [diff] [blame] | 2118 | struct inquiry_entry *ie) |
Johan Hedberg | a3d4e20 | 2012-01-09 00:53:02 +0200 | [diff] [blame] | 2119 | { |
| 2120 | struct discovery_state *cache = &hdev->discovery; |
| 2121 | struct list_head *pos = &cache->resolve; |
| 2122 | struct inquiry_entry *p; |
| 2123 | |
| 2124 | list_del(&ie->list); |
| 2125 | |
| 2126 | list_for_each_entry(p, &cache->resolve, list) { |
| 2127 | if (p->name_state != NAME_PENDING && |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 2128 | abs(p->data.rssi) >= abs(ie->data.rssi)) |
Johan Hedberg | a3d4e20 | 2012-01-09 00:53:02 +0200 | [diff] [blame] | 2129 | break; |
| 2130 | pos = &p->list; |
| 2131 | } |
| 2132 | |
| 2133 | list_add(&ie->list, pos); |
| 2134 | } |
| 2135 | |
Marcel Holtmann | af58925 | 2014-07-01 14:11:20 +0200 | [diff] [blame] | 2136 | u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, |
| 2137 | bool name_known) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2138 | { |
Johan Hedberg | 3088351 | 2012-01-04 14:16:21 +0200 | [diff] [blame] | 2139 | struct discovery_state *cache = &hdev->discovery; |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2140 | struct inquiry_entry *ie; |
Marcel Holtmann | af58925 | 2014-07-01 14:11:20 +0200 | [diff] [blame] | 2141 | u32 flags = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2142 | |
Andrei Emeltchenko | 6ed93dc | 2012-09-25 12:49:43 +0300 | [diff] [blame] | 2143 | BT_DBG("cache %p, %pMR", cache, &data->bdaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2144 | |
Szymon Janc | 2b2fec4 | 2012-11-20 11:38:54 +0100 | [diff] [blame] | 2145 | hci_remove_remote_oob_data(hdev, &data->bdaddr); |
| 2146 | |
Marcel Holtmann | af58925 | 2014-07-01 14:11:20 +0200 | [diff] [blame] | 2147 | if (!data->ssp_mode) |
| 2148 | flags |= MGMT_DEV_FOUND_LEGACY_PAIRING; |
Johan Hedberg | 388fc8f | 2012-02-23 00:38:59 +0200 | [diff] [blame] | 2149 | |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2150 | ie = hci_inquiry_cache_lookup(hdev, &data->bdaddr); |
Johan Hedberg | a3d4e20 | 2012-01-09 00:53:02 +0200 | [diff] [blame] | 2151 | if (ie) { |
Marcel Holtmann | af58925 | 2014-07-01 14:11:20 +0200 | [diff] [blame] | 2152 | if (!ie->data.ssp_mode) |
| 2153 | flags |= MGMT_DEV_FOUND_LEGACY_PAIRING; |
Johan Hedberg | 388fc8f | 2012-02-23 00:38:59 +0200 | [diff] [blame] | 2154 | |
Johan Hedberg | a3d4e20 | 2012-01-09 00:53:02 +0200 | [diff] [blame] | 2155 | if (ie->name_state == NAME_NEEDED && |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 2156 | data->rssi != ie->data.rssi) { |
Johan Hedberg | a3d4e20 | 2012-01-09 00:53:02 +0200 | [diff] [blame] | 2157 | ie->data.rssi = data->rssi; |
| 2158 | hci_inquiry_cache_update_resolve(hdev, ie); |
| 2159 | } |
| 2160 | |
Johan Hedberg | 561aafb | 2012-01-04 13:31:59 +0200 | [diff] [blame] | 2161 | goto update; |
Johan Hedberg | a3d4e20 | 2012-01-09 00:53:02 +0200 | [diff] [blame] | 2162 | } |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2163 | |
Johan Hedberg | 561aafb | 2012-01-04 13:31:59 +0200 | [diff] [blame] | 2164 | /* Entry not in the cache. Add new one. */ |
Johan Hedberg | 27f70f3 | 2014-07-21 10:50:06 +0300 | [diff] [blame] | 2165 | ie = kzalloc(sizeof(*ie), GFP_KERNEL); |
Marcel Holtmann | af58925 | 2014-07-01 14:11:20 +0200 | [diff] [blame] | 2166 | if (!ie) { |
| 2167 | flags |= MGMT_DEV_FOUND_CONFIRM_NAME; |
| 2168 | goto done; |
| 2169 | } |
Johan Hedberg | 561aafb | 2012-01-04 13:31:59 +0200 | [diff] [blame] | 2170 | |
| 2171 | list_add(&ie->all, &cache->all); |
| 2172 | |
| 2173 | if (name_known) { |
| 2174 | ie->name_state = NAME_KNOWN; |
| 2175 | } else { |
| 2176 | ie->name_state = NAME_NOT_KNOWN; |
| 2177 | list_add(&ie->list, &cache->unknown); |
| 2178 | } |
| 2179 | |
| 2180 | update: |
| 2181 | if (name_known && ie->name_state != NAME_KNOWN && |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 2182 | ie->name_state != NAME_PENDING) { |
Johan Hedberg | 561aafb | 2012-01-04 13:31:59 +0200 | [diff] [blame] | 2183 | ie->name_state = NAME_KNOWN; |
| 2184 | list_del(&ie->list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2185 | } |
| 2186 | |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2187 | memcpy(&ie->data, data, sizeof(*data)); |
| 2188 | ie->timestamp = jiffies; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2189 | cache->timestamp = jiffies; |
Johan Hedberg | 3175405 | 2012-01-04 13:39:52 +0200 | [diff] [blame] | 2190 | |
| 2191 | if (ie->name_state == NAME_NOT_KNOWN) |
Marcel Holtmann | af58925 | 2014-07-01 14:11:20 +0200 | [diff] [blame] | 2192 | flags |= MGMT_DEV_FOUND_CONFIRM_NAME; |
Johan Hedberg | 3175405 | 2012-01-04 13:39:52 +0200 | [diff] [blame] | 2193 | |
Marcel Holtmann | af58925 | 2014-07-01 14:11:20 +0200 | [diff] [blame] | 2194 | done: |
| 2195 | return flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2196 | } |
| 2197 | |
| 2198 | static int inquiry_cache_dump(struct hci_dev *hdev, int num, __u8 *buf) |
| 2199 | { |
Johan Hedberg | 3088351 | 2012-01-04 14:16:21 +0200 | [diff] [blame] | 2200 | struct discovery_state *cache = &hdev->discovery; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2201 | struct inquiry_info *info = (struct inquiry_info *) buf; |
| 2202 | struct inquiry_entry *e; |
| 2203 | int copied = 0; |
| 2204 | |
Johan Hedberg | 561aafb | 2012-01-04 13:31:59 +0200 | [diff] [blame] | 2205 | list_for_each_entry(e, &cache->all, all) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2206 | struct inquiry_data *data = &e->data; |
Johan Hedberg | b57c1a5 | 2012-01-03 16:03:00 +0200 | [diff] [blame] | 2207 | |
| 2208 | if (copied >= num) |
| 2209 | break; |
| 2210 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2211 | bacpy(&info->bdaddr, &data->bdaddr); |
| 2212 | info->pscan_rep_mode = data->pscan_rep_mode; |
| 2213 | info->pscan_period_mode = data->pscan_period_mode; |
| 2214 | info->pscan_mode = data->pscan_mode; |
| 2215 | memcpy(info->dev_class, data->dev_class, 3); |
| 2216 | info->clock_offset = data->clock_offset; |
Johan Hedberg | b57c1a5 | 2012-01-03 16:03:00 +0200 | [diff] [blame] | 2217 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2218 | info++; |
Johan Hedberg | b57c1a5 | 2012-01-03 16:03:00 +0200 | [diff] [blame] | 2219 | copied++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2220 | } |
| 2221 | |
| 2222 | BT_DBG("cache %p, copied %d", cache, copied); |
| 2223 | return copied; |
| 2224 | } |
| 2225 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 2226 | static void hci_inq_req(struct hci_request *req, unsigned long opt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2227 | { |
| 2228 | struct hci_inquiry_req *ir = (struct hci_inquiry_req *) opt; |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 2229 | struct hci_dev *hdev = req->hdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2230 | struct hci_cp_inquiry cp; |
| 2231 | |
| 2232 | BT_DBG("%s", hdev->name); |
| 2233 | |
| 2234 | if (test_bit(HCI_INQUIRY, &hdev->flags)) |
| 2235 | return; |
| 2236 | |
| 2237 | /* Start Inquiry */ |
| 2238 | memcpy(&cp.lap, &ir->lap, 3); |
| 2239 | cp.length = ir->length; |
| 2240 | cp.num_rsp = ir->num_rsp; |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 2241 | hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2242 | } |
| 2243 | |
| 2244 | int hci_inquiry(void __user *arg) |
| 2245 | { |
| 2246 | __u8 __user *ptr = arg; |
| 2247 | struct hci_inquiry_req ir; |
| 2248 | struct hci_dev *hdev; |
| 2249 | int err = 0, do_inquiry = 0, max_rsp; |
| 2250 | long timeo; |
| 2251 | __u8 *buf; |
| 2252 | |
| 2253 | if (copy_from_user(&ir, ptr, sizeof(ir))) |
| 2254 | return -EFAULT; |
| 2255 | |
Andrei Emeltchenko | 5a08ecc | 2011-01-11 17:20:20 +0200 | [diff] [blame] | 2256 | hdev = hci_dev_get(ir.dev_id); |
| 2257 | if (!hdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2258 | return -ENODEV; |
| 2259 | |
Marcel Holtmann | 0736cfa | 2013-08-26 21:40:51 -0700 | [diff] [blame] | 2260 | if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { |
| 2261 | err = -EBUSY; |
| 2262 | goto done; |
| 2263 | } |
| 2264 | |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 2265 | if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) { |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 2266 | err = -EOPNOTSUPP; |
| 2267 | goto done; |
| 2268 | } |
| 2269 | |
Marcel Holtmann | 5b69bef5 | 2013-10-10 10:02:08 -0700 | [diff] [blame] | 2270 | if (hdev->dev_type != HCI_BREDR) { |
| 2271 | err = -EOPNOTSUPP; |
| 2272 | goto done; |
| 2273 | } |
| 2274 | |
Johan Hedberg | 56f8790 | 2013-10-02 13:43:13 +0300 | [diff] [blame] | 2275 | if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) { |
| 2276 | err = -EOPNOTSUPP; |
| 2277 | goto done; |
| 2278 | } |
| 2279 | |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 2280 | hci_dev_lock(hdev); |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 2281 | if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX || |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 2282 | inquiry_cache_empty(hdev) || ir.flags & IREQ_CACHE_FLUSH) { |
Andre Guedes | 1f9b9a5 | 2013-04-30 15:29:27 -0300 | [diff] [blame] | 2283 | hci_inquiry_cache_flush(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2284 | do_inquiry = 1; |
| 2285 | } |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 2286 | hci_dev_unlock(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2287 | |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 2288 | timeo = ir.length * msecs_to_jiffies(2000); |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2289 | |
| 2290 | if (do_inquiry) { |
Johan Hedberg | 01178cd | 2013-03-05 20:37:41 +0200 | [diff] [blame] | 2291 | err = hci_req_sync(hdev, hci_inq_req, (unsigned long) &ir, |
| 2292 | timeo); |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2293 | if (err < 0) |
| 2294 | goto done; |
Andre Guedes | 3e13fa1 | 2013-03-27 20:04:56 -0300 | [diff] [blame] | 2295 | |
| 2296 | /* Wait until Inquiry procedure finishes (HCI_INQUIRY flag is |
| 2297 | * cleared). If it is interrupted by a signal, return -EINTR. |
| 2298 | */ |
NeilBrown | 7431620 | 2014-07-07 15:16:04 +1000 | [diff] [blame] | 2299 | if (wait_on_bit(&hdev->flags, HCI_INQUIRY, |
Andre Guedes | 3e13fa1 | 2013-03-27 20:04:56 -0300 | [diff] [blame] | 2300 | TASK_INTERRUPTIBLE)) |
| 2301 | return -EINTR; |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2302 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2303 | |
Gustavo Padovan | 8fc9ced | 2012-05-23 04:04:21 -0300 | [diff] [blame] | 2304 | /* for unlimited number of responses we will use buffer with |
| 2305 | * 255 entries |
| 2306 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2307 | max_rsp = (ir.num_rsp == 0) ? 255 : ir.num_rsp; |
| 2308 | |
| 2309 | /* cache_dump can't sleep. Therefore we allocate temp buffer and then |
| 2310 | * copy it to the user space. |
| 2311 | */ |
Szymon Janc | 01df8c3 | 2011-02-17 16:46:47 +0100 | [diff] [blame] | 2312 | buf = kmalloc(sizeof(struct inquiry_info) * max_rsp, GFP_KERNEL); |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2313 | if (!buf) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2314 | err = -ENOMEM; |
| 2315 | goto done; |
| 2316 | } |
| 2317 | |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 2318 | hci_dev_lock(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2319 | ir.num_rsp = inquiry_cache_dump(hdev, max_rsp, buf); |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 2320 | hci_dev_unlock(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2321 | |
| 2322 | BT_DBG("num_rsp %d", ir.num_rsp); |
| 2323 | |
| 2324 | if (!copy_to_user(ptr, &ir, sizeof(ir))) { |
| 2325 | ptr += sizeof(ir); |
| 2326 | if (copy_to_user(ptr, buf, sizeof(struct inquiry_info) * |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 2327 | ir.num_rsp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2328 | err = -EFAULT; |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 2329 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2330 | err = -EFAULT; |
| 2331 | |
| 2332 | kfree(buf); |
| 2333 | |
| 2334 | done: |
| 2335 | hci_dev_put(hdev); |
| 2336 | return err; |
| 2337 | } |
| 2338 | |
Johan Hedberg | cbed0ca | 2013-10-01 22:44:49 +0300 | [diff] [blame] | 2339 | static int hci_dev_do_open(struct hci_dev *hdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2340 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2341 | int ret = 0; |
| 2342 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2343 | BT_DBG("%s %p", hdev->name, hdev); |
| 2344 | |
| 2345 | hci_req_lock(hdev); |
| 2346 | |
Johan Hovold | 9432496 | 2012-03-15 14:48:41 +0100 | [diff] [blame] | 2347 | if (test_bit(HCI_UNREGISTER, &hdev->dev_flags)) { |
| 2348 | ret = -ENODEV; |
| 2349 | goto done; |
| 2350 | } |
| 2351 | |
Marcel Holtmann | d603b76 | 2014-07-06 12:11:14 +0200 | [diff] [blame] | 2352 | if (!test_bit(HCI_SETUP, &hdev->dev_flags) && |
| 2353 | !test_bit(HCI_CONFIG, &hdev->dev_flags)) { |
Marcel Holtmann | a5c8f27 | 2013-10-06 01:08:57 -0700 | [diff] [blame] | 2354 | /* Check for rfkill but allow the HCI setup stage to |
| 2355 | * proceed (which in itself doesn't cause any RF activity). |
| 2356 | */ |
| 2357 | if (test_bit(HCI_RFKILLED, &hdev->dev_flags)) { |
| 2358 | ret = -ERFKILL; |
| 2359 | goto done; |
| 2360 | } |
| 2361 | |
| 2362 | /* Check for valid public address or a configured static |
| 2363 | * random adddress, but let the HCI setup proceed to |
| 2364 | * be able to determine if there is a public address |
| 2365 | * or not. |
| 2366 | * |
Marcel Holtmann | c6beca0 | 2014-02-17 09:21:19 -0800 | [diff] [blame] | 2367 | * In case of user channel usage, it is not important |
| 2368 | * if a public address or static random address is |
| 2369 | * available. |
| 2370 | * |
Marcel Holtmann | a5c8f27 | 2013-10-06 01:08:57 -0700 | [diff] [blame] | 2371 | * This check is only valid for BR/EDR controllers |
| 2372 | * since AMP controllers do not have an address. |
| 2373 | */ |
Marcel Holtmann | c6beca0 | 2014-02-17 09:21:19 -0800 | [diff] [blame] | 2374 | if (!test_bit(HCI_USER_CHANNEL, &hdev->dev_flags) && |
| 2375 | hdev->dev_type == HCI_BREDR && |
Marcel Holtmann | a5c8f27 | 2013-10-06 01:08:57 -0700 | [diff] [blame] | 2376 | !bacmp(&hdev->bdaddr, BDADDR_ANY) && |
| 2377 | !bacmp(&hdev->static_addr, BDADDR_ANY)) { |
| 2378 | ret = -EADDRNOTAVAIL; |
| 2379 | goto done; |
| 2380 | } |
Marcel Holtmann | 611b30f | 2009-06-08 14:41:38 +0200 | [diff] [blame] | 2381 | } |
| 2382 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2383 | if (test_bit(HCI_UP, &hdev->flags)) { |
| 2384 | ret = -EALREADY; |
| 2385 | goto done; |
| 2386 | } |
| 2387 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2388 | if (hdev->open(hdev)) { |
| 2389 | ret = -EIO; |
| 2390 | goto done; |
| 2391 | } |
| 2392 | |
Marcel Holtmann | f41c70c | 2012-11-12 14:02:14 +0900 | [diff] [blame] | 2393 | atomic_set(&hdev->cmd_cnt, 1); |
| 2394 | set_bit(HCI_INIT, &hdev->flags); |
| 2395 | |
Marcel Holtmann | af202f8 | 2014-07-04 17:23:34 +0200 | [diff] [blame] | 2396 | if (test_bit(HCI_SETUP, &hdev->dev_flags)) { |
| 2397 | if (hdev->setup) |
| 2398 | ret = hdev->setup(hdev); |
Marcel Holtmann | f41c70c | 2012-11-12 14:02:14 +0900 | [diff] [blame] | 2399 | |
Marcel Holtmann | af202f8 | 2014-07-04 17:23:34 +0200 | [diff] [blame] | 2400 | /* The transport driver can set these quirks before |
| 2401 | * creating the HCI device or in its setup callback. |
| 2402 | * |
| 2403 | * In case any of them is set, the controller has to |
| 2404 | * start up as unconfigured. |
| 2405 | */ |
Marcel Holtmann | eb1904f | 2014-07-04 17:23:33 +0200 | [diff] [blame] | 2406 | if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) || |
| 2407 | test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks)) |
Marcel Holtmann | 89bc22d | 2014-07-04 16:54:37 +0200 | [diff] [blame] | 2408 | set_bit(HCI_UNCONFIGURED, &hdev->dev_flags); |
Marcel Holtmann | 0ebca7d | 2014-07-05 10:48:02 +0200 | [diff] [blame] | 2409 | |
| 2410 | /* For an unconfigured controller it is required to |
| 2411 | * read at least the version information provided by |
| 2412 | * the Read Local Version Information command. |
| 2413 | * |
| 2414 | * If the set_bdaddr driver callback is provided, then |
| 2415 | * also the original Bluetooth public device address |
| 2416 | * will be read using the Read BD Address command. |
| 2417 | */ |
| 2418 | if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) |
| 2419 | ret = __hci_unconf_init(hdev); |
Marcel Holtmann | 89bc22d | 2014-07-04 16:54:37 +0200 | [diff] [blame] | 2420 | } |
| 2421 | |
Marcel Holtmann | 9713c17 | 2014-07-06 12:11:15 +0200 | [diff] [blame] | 2422 | if (test_bit(HCI_CONFIG, &hdev->dev_flags)) { |
| 2423 | /* If public address change is configured, ensure that |
| 2424 | * the address gets programmed. If the driver does not |
| 2425 | * support changing the public address, fail the power |
| 2426 | * on procedure. |
| 2427 | */ |
| 2428 | if (bacmp(&hdev->public_addr, BDADDR_ANY) && |
| 2429 | hdev->set_bdaddr) |
Marcel Holtmann | 24c457e | 2014-07-02 00:53:47 +0200 | [diff] [blame] | 2430 | ret = hdev->set_bdaddr(hdev, &hdev->public_addr); |
| 2431 | else |
| 2432 | ret = -EADDRNOTAVAIL; |
| 2433 | } |
Marcel Holtmann | f41c70c | 2012-11-12 14:02:14 +0900 | [diff] [blame] | 2434 | |
| 2435 | if (!ret) { |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 2436 | if (!test_bit(HCI_UNCONFIGURED, &hdev->dev_flags) && |
Marcel Holtmann | 0736cfa | 2013-08-26 21:40:51 -0700 | [diff] [blame] | 2437 | !test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) |
Marcel Holtmann | f41c70c | 2012-11-12 14:02:14 +0900 | [diff] [blame] | 2438 | ret = __hci_init(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2439 | } |
| 2440 | |
Marcel Holtmann | f41c70c | 2012-11-12 14:02:14 +0900 | [diff] [blame] | 2441 | clear_bit(HCI_INIT, &hdev->flags); |
| 2442 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2443 | if (!ret) { |
| 2444 | hci_dev_hold(hdev); |
Johan Hedberg | d6bfd59 | 2014-02-23 19:42:20 +0200 | [diff] [blame] | 2445 | set_bit(HCI_RPA_EXPIRED, &hdev->dev_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2446 | set_bit(HCI_UP, &hdev->flags); |
| 2447 | hci_notify(hdev, HCI_DEV_UP); |
Andrei Emeltchenko | bb4b2a9 | 2012-07-19 17:03:40 +0300 | [diff] [blame] | 2448 | if (!test_bit(HCI_SETUP, &hdev->dev_flags) && |
Marcel Holtmann | d603b76 | 2014-07-06 12:11:14 +0200 | [diff] [blame] | 2449 | !test_bit(HCI_CONFIG, &hdev->dev_flags) && |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 2450 | !test_bit(HCI_UNCONFIGURED, &hdev->dev_flags) && |
Marcel Holtmann | 0736cfa | 2013-08-26 21:40:51 -0700 | [diff] [blame] | 2451 | !test_bit(HCI_USER_CHANNEL, &hdev->dev_flags) && |
Marcel Holtmann | 1514b89 | 2013-10-06 08:25:01 -0700 | [diff] [blame] | 2452 | hdev->dev_type == HCI_BREDR) { |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 2453 | hci_dev_lock(hdev); |
Johan Hedberg | 744cf19 | 2011-11-08 20:40:14 +0200 | [diff] [blame] | 2454 | mgmt_powered(hdev, 1); |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 2455 | hci_dev_unlock(hdev); |
Johan Hedberg | 56e5cb8 | 2011-11-08 20:40:16 +0200 | [diff] [blame] | 2456 | } |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 2457 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2458 | /* Init failed, cleanup */ |
Gustavo F. Padovan | 3eff45e | 2011-12-15 00:50:02 -0200 | [diff] [blame] | 2459 | flush_work(&hdev->tx_work); |
Gustavo F. Padovan | c347b76 | 2011-12-14 23:53:47 -0200 | [diff] [blame] | 2460 | flush_work(&hdev->cmd_work); |
Marcel Holtmann | b78752c | 2010-08-08 23:06:53 -0400 | [diff] [blame] | 2461 | flush_work(&hdev->rx_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2462 | |
| 2463 | skb_queue_purge(&hdev->cmd_q); |
| 2464 | skb_queue_purge(&hdev->rx_q); |
| 2465 | |
| 2466 | if (hdev->flush) |
| 2467 | hdev->flush(hdev); |
| 2468 | |
| 2469 | if (hdev->sent_cmd) { |
| 2470 | kfree_skb(hdev->sent_cmd); |
| 2471 | hdev->sent_cmd = NULL; |
| 2472 | } |
| 2473 | |
| 2474 | hdev->close(hdev); |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 2475 | hdev->flags &= BIT(HCI_RAW); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2476 | } |
| 2477 | |
| 2478 | done: |
| 2479 | hci_req_unlock(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2480 | return ret; |
| 2481 | } |
| 2482 | |
Johan Hedberg | cbed0ca | 2013-10-01 22:44:49 +0300 | [diff] [blame] | 2483 | /* ---- HCI ioctl helpers ---- */ |
| 2484 | |
| 2485 | int hci_dev_open(__u16 dev) |
| 2486 | { |
| 2487 | struct hci_dev *hdev; |
| 2488 | int err; |
| 2489 | |
| 2490 | hdev = hci_dev_get(dev); |
| 2491 | if (!hdev) |
| 2492 | return -ENODEV; |
| 2493 | |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 2494 | /* Devices that are marked as unconfigured can only be powered |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 2495 | * up as user channel. Trying to bring them up as normal devices |
| 2496 | * will result into a failure. Only user channel operation is |
| 2497 | * possible. |
| 2498 | * |
| 2499 | * When this function is called for a user channel, the flag |
| 2500 | * HCI_USER_CHANNEL will be set first before attempting to |
| 2501 | * open the device. |
| 2502 | */ |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 2503 | if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags) && |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 2504 | !test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { |
| 2505 | err = -EOPNOTSUPP; |
| 2506 | goto done; |
| 2507 | } |
| 2508 | |
Johan Hedberg | e1d08f4 | 2013-10-01 22:44:50 +0300 | [diff] [blame] | 2509 | /* We need to ensure that no other power on/off work is pending |
| 2510 | * before proceeding to call hci_dev_do_open. This is |
| 2511 | * particularly important if the setup procedure has not yet |
| 2512 | * completed. |
| 2513 | */ |
| 2514 | if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) |
| 2515 | cancel_delayed_work(&hdev->power_off); |
| 2516 | |
Marcel Holtmann | a5c8f27 | 2013-10-06 01:08:57 -0700 | [diff] [blame] | 2517 | /* After this call it is guaranteed that the setup procedure |
| 2518 | * has finished. This means that error conditions like RFKILL |
| 2519 | * or no valid public or static random address apply. |
| 2520 | */ |
Johan Hedberg | e1d08f4 | 2013-10-01 22:44:50 +0300 | [diff] [blame] | 2521 | flush_workqueue(hdev->req_workqueue); |
| 2522 | |
Marcel Holtmann | 12aa4f0 | 2014-07-10 15:25:22 +0200 | [diff] [blame] | 2523 | /* For controllers not using the management interface and that |
Johan Hedberg | b6ae845 | 2014-07-30 09:22:22 +0300 | [diff] [blame] | 2524 | * are brought up using legacy ioctl, set the HCI_BONDABLE bit |
Marcel Holtmann | 12aa4f0 | 2014-07-10 15:25:22 +0200 | [diff] [blame] | 2525 | * so that pairing works for them. Once the management interface |
| 2526 | * is in use this bit will be cleared again and userspace has |
| 2527 | * to explicitly enable it. |
| 2528 | */ |
| 2529 | if (!test_bit(HCI_USER_CHANNEL, &hdev->dev_flags) && |
| 2530 | !test_bit(HCI_MGMT, &hdev->dev_flags)) |
Johan Hedberg | b6ae845 | 2014-07-30 09:22:22 +0300 | [diff] [blame] | 2531 | set_bit(HCI_BONDABLE, &hdev->dev_flags); |
Marcel Holtmann | 12aa4f0 | 2014-07-10 15:25:22 +0200 | [diff] [blame] | 2532 | |
Johan Hedberg | cbed0ca | 2013-10-01 22:44:49 +0300 | [diff] [blame] | 2533 | err = hci_dev_do_open(hdev); |
| 2534 | |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 2535 | done: |
Johan Hedberg | cbed0ca | 2013-10-01 22:44:49 +0300 | [diff] [blame] | 2536 | hci_dev_put(hdev); |
Johan Hedberg | cbed0ca | 2013-10-01 22:44:49 +0300 | [diff] [blame] | 2537 | return err; |
| 2538 | } |
| 2539 | |
Johan Hedberg | d7347f3 | 2014-07-04 12:37:23 +0300 | [diff] [blame] | 2540 | /* This function requires the caller holds hdev->lock */ |
| 2541 | static void hci_pend_le_actions_clear(struct hci_dev *hdev) |
| 2542 | { |
| 2543 | struct hci_conn_params *p; |
| 2544 | |
Johan Hedberg | f161dd4 | 2014-08-15 21:06:54 +0300 | [diff] [blame] | 2545 | list_for_each_entry(p, &hdev->le_conn_params, list) { |
| 2546 | if (p->conn) { |
| 2547 | hci_conn_drop(p->conn); |
Johan Hedberg | f8aaf9b | 2014-08-17 23:28:57 +0300 | [diff] [blame] | 2548 | hci_conn_put(p->conn); |
Johan Hedberg | f161dd4 | 2014-08-15 21:06:54 +0300 | [diff] [blame] | 2549 | p->conn = NULL; |
| 2550 | } |
Johan Hedberg | d7347f3 | 2014-07-04 12:37:23 +0300 | [diff] [blame] | 2551 | list_del_init(&p->action); |
Johan Hedberg | f161dd4 | 2014-08-15 21:06:54 +0300 | [diff] [blame] | 2552 | } |
Johan Hedberg | d7347f3 | 2014-07-04 12:37:23 +0300 | [diff] [blame] | 2553 | |
| 2554 | BT_DBG("All LE pending actions cleared"); |
| 2555 | } |
| 2556 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2557 | static int hci_dev_do_close(struct hci_dev *hdev) |
| 2558 | { |
| 2559 | BT_DBG("%s %p", hdev->name, hdev); |
| 2560 | |
Vinicius Costa Gomes | 78c04c0 | 2012-09-14 16:34:46 -0300 | [diff] [blame] | 2561 | cancel_delayed_work(&hdev->power_off); |
| 2562 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2563 | hci_req_cancel(hdev, ENODEV); |
| 2564 | hci_req_lock(hdev); |
| 2565 | |
| 2566 | if (!test_and_clear_bit(HCI_UP, &hdev->flags)) { |
Marcel Holtmann | 65cc2b4 | 2014-06-16 12:30:56 +0200 | [diff] [blame] | 2567 | cancel_delayed_work_sync(&hdev->cmd_timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2568 | hci_req_unlock(hdev); |
| 2569 | return 0; |
| 2570 | } |
| 2571 | |
Gustavo F. Padovan | 3eff45e | 2011-12-15 00:50:02 -0200 | [diff] [blame] | 2572 | /* Flush RX and TX works */ |
| 2573 | flush_work(&hdev->tx_work); |
Marcel Holtmann | b78752c | 2010-08-08 23:06:53 -0400 | [diff] [blame] | 2574 | flush_work(&hdev->rx_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2575 | |
Johan Hedberg | 16ab91a | 2011-11-07 22:16:02 +0200 | [diff] [blame] | 2576 | if (hdev->discov_timeout > 0) { |
Johan Hedberg | e0f9309 | 2011-11-09 01:44:22 +0200 | [diff] [blame] | 2577 | cancel_delayed_work(&hdev->discov_off); |
Johan Hedberg | 16ab91a | 2011-11-07 22:16:02 +0200 | [diff] [blame] | 2578 | hdev->discov_timeout = 0; |
Johan Hedberg | 5e5282b | 2012-02-21 16:01:30 +0200 | [diff] [blame] | 2579 | clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags); |
Marcel Holtmann | 310a3d4 | 2013-10-15 09:13:39 -0700 | [diff] [blame] | 2580 | clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); |
Johan Hedberg | 16ab91a | 2011-11-07 22:16:02 +0200 | [diff] [blame] | 2581 | } |
| 2582 | |
Johan Hedberg | a8b2d5c | 2012-01-08 23:11:15 +0200 | [diff] [blame] | 2583 | if (test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) |
Johan Hedberg | 7d78525 | 2011-12-15 00:47:39 +0200 | [diff] [blame] | 2584 | cancel_delayed_work(&hdev->service_cache); |
| 2585 | |
Andre Guedes | 7ba8b4b | 2012-02-03 17:47:59 -0300 | [diff] [blame] | 2586 | cancel_delayed_work_sync(&hdev->le_scan_disable); |
Johan Hedberg | 4518bb0 | 2014-02-24 20:35:07 +0200 | [diff] [blame] | 2587 | |
| 2588 | if (test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 2589 | cancel_delayed_work_sync(&hdev->rpa_expired); |
Andre Guedes | 7ba8b4b | 2012-02-03 17:47:59 -0300 | [diff] [blame] | 2590 | |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 2591 | hci_dev_lock(hdev); |
Andre Guedes | 1f9b9a5 | 2013-04-30 15:29:27 -0300 | [diff] [blame] | 2592 | hci_inquiry_cache_flush(hdev); |
Johan Hedberg | d7347f3 | 2014-07-04 12:37:23 +0300 | [diff] [blame] | 2593 | hci_pend_le_actions_clear(hdev); |
Johan Hedberg | f161dd4 | 2014-08-15 21:06:54 +0300 | [diff] [blame] | 2594 | hci_conn_hash_flush(hdev); |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 2595 | hci_dev_unlock(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2596 | |
| 2597 | hci_notify(hdev, HCI_DEV_DOWN); |
| 2598 | |
| 2599 | if (hdev->flush) |
| 2600 | hdev->flush(hdev); |
| 2601 | |
| 2602 | /* Reset device */ |
| 2603 | skb_queue_purge(&hdev->cmd_q); |
| 2604 | atomic_set(&hdev->cmd_cnt, 1); |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 2605 | if (!test_bit(HCI_AUTO_OFF, &hdev->dev_flags) && |
| 2606 | !test_bit(HCI_UNCONFIGURED, &hdev->dev_flags) && |
Szymon Janc | a6c511c | 2012-05-23 12:35:46 +0200 | [diff] [blame] | 2607 | test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2608 | set_bit(HCI_INIT, &hdev->flags); |
Johan Hedberg | 01178cd | 2013-03-05 20:37:41 +0200 | [diff] [blame] | 2609 | __hci_req_sync(hdev, hci_reset_req, 0, HCI_CMD_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2610 | clear_bit(HCI_INIT, &hdev->flags); |
| 2611 | } |
| 2612 | |
Gustavo F. Padovan | c347b76 | 2011-12-14 23:53:47 -0200 | [diff] [blame] | 2613 | /* flush cmd work */ |
| 2614 | flush_work(&hdev->cmd_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2615 | |
| 2616 | /* Drop queues */ |
| 2617 | skb_queue_purge(&hdev->rx_q); |
| 2618 | skb_queue_purge(&hdev->cmd_q); |
| 2619 | skb_queue_purge(&hdev->raw_q); |
| 2620 | |
| 2621 | /* Drop last sent command */ |
| 2622 | if (hdev->sent_cmd) { |
Marcel Holtmann | 65cc2b4 | 2014-06-16 12:30:56 +0200 | [diff] [blame] | 2623 | cancel_delayed_work_sync(&hdev->cmd_timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2624 | kfree_skb(hdev->sent_cmd); |
| 2625 | hdev->sent_cmd = NULL; |
| 2626 | } |
| 2627 | |
Johan Hedberg | b6ddb63 | 2013-04-02 13:34:31 +0300 | [diff] [blame] | 2628 | kfree_skb(hdev->recv_evt); |
| 2629 | hdev->recv_evt = NULL; |
| 2630 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2631 | /* After this point our queues are empty |
| 2632 | * and no tasks are scheduled. */ |
| 2633 | hdev->close(hdev); |
| 2634 | |
Johan Hedberg | 35b973c | 2013-03-15 17:06:59 -0500 | [diff] [blame] | 2635 | /* Clear flags */ |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 2636 | hdev->flags &= BIT(HCI_RAW); |
Johan Hedberg | 35b973c | 2013-03-15 17:06:59 -0500 | [diff] [blame] | 2637 | hdev->dev_flags &= ~HCI_PERSISTENT_MASK; |
| 2638 | |
Marcel Holtmann | 93c311a | 2013-10-07 00:58:33 -0700 | [diff] [blame] | 2639 | if (!test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) { |
| 2640 | if (hdev->dev_type == HCI_BREDR) { |
| 2641 | hci_dev_lock(hdev); |
| 2642 | mgmt_powered(hdev, 0); |
| 2643 | hci_dev_unlock(hdev); |
| 2644 | } |
Marcel Holtmann | 8ee5654 | 2012-02-21 12:33:48 +0100 | [diff] [blame] | 2645 | } |
Johan Hedberg | 5add6af | 2010-12-16 10:00:37 +0200 | [diff] [blame] | 2646 | |
Andrei Emeltchenko | ced5c33 | 2012-11-28 17:59:42 +0200 | [diff] [blame] | 2647 | /* Controller radio is available but is currently powered down */ |
Marcel Holtmann | 536619e | 2013-10-05 11:47:45 -0700 | [diff] [blame] | 2648 | hdev->amp_status = AMP_STATUS_POWERED_DOWN; |
Andrei Emeltchenko | ced5c33 | 2012-11-28 17:59:42 +0200 | [diff] [blame] | 2649 | |
Johan Hedberg | e59fda8 | 2012-02-22 18:11:53 +0200 | [diff] [blame] | 2650 | memset(hdev->eir, 0, sizeof(hdev->eir)); |
Johan Hedberg | 09b3c3f | 2012-02-22 22:01:41 +0200 | [diff] [blame] | 2651 | memset(hdev->dev_class, 0, sizeof(hdev->dev_class)); |
Marcel Holtmann | 7a4cd51 | 2014-02-19 19:52:13 -0800 | [diff] [blame] | 2652 | bacpy(&hdev->random_addr, BDADDR_ANY); |
Johan Hedberg | e59fda8 | 2012-02-22 18:11:53 +0200 | [diff] [blame] | 2653 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2654 | hci_req_unlock(hdev); |
| 2655 | |
| 2656 | hci_dev_put(hdev); |
| 2657 | return 0; |
| 2658 | } |
| 2659 | |
| 2660 | int hci_dev_close(__u16 dev) |
| 2661 | { |
| 2662 | struct hci_dev *hdev; |
| 2663 | int err; |
| 2664 | |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2665 | hdev = hci_dev_get(dev); |
| 2666 | if (!hdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2667 | return -ENODEV; |
Marcel Holtmann | 8ee5654 | 2012-02-21 12:33:48 +0100 | [diff] [blame] | 2668 | |
Marcel Holtmann | 0736cfa | 2013-08-26 21:40:51 -0700 | [diff] [blame] | 2669 | if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { |
| 2670 | err = -EBUSY; |
| 2671 | goto done; |
| 2672 | } |
| 2673 | |
Marcel Holtmann | 8ee5654 | 2012-02-21 12:33:48 +0100 | [diff] [blame] | 2674 | if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) |
| 2675 | cancel_delayed_work(&hdev->power_off); |
| 2676 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2677 | err = hci_dev_do_close(hdev); |
Marcel Holtmann | 8ee5654 | 2012-02-21 12:33:48 +0100 | [diff] [blame] | 2678 | |
Marcel Holtmann | 0736cfa | 2013-08-26 21:40:51 -0700 | [diff] [blame] | 2679 | done: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2680 | hci_dev_put(hdev); |
| 2681 | return err; |
| 2682 | } |
| 2683 | |
| 2684 | int hci_dev_reset(__u16 dev) |
| 2685 | { |
| 2686 | struct hci_dev *hdev; |
| 2687 | int ret = 0; |
| 2688 | |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2689 | hdev = hci_dev_get(dev); |
| 2690 | if (!hdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2691 | return -ENODEV; |
| 2692 | |
| 2693 | hci_req_lock(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2694 | |
Marcel Holtmann | 808a049 | 2013-08-26 20:57:58 -0700 | [diff] [blame] | 2695 | if (!test_bit(HCI_UP, &hdev->flags)) { |
| 2696 | ret = -ENETDOWN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2697 | goto done; |
Marcel Holtmann | 808a049 | 2013-08-26 20:57:58 -0700 | [diff] [blame] | 2698 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2699 | |
Marcel Holtmann | 0736cfa | 2013-08-26 21:40:51 -0700 | [diff] [blame] | 2700 | if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { |
| 2701 | ret = -EBUSY; |
| 2702 | goto done; |
| 2703 | } |
| 2704 | |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 2705 | if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) { |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 2706 | ret = -EOPNOTSUPP; |
| 2707 | goto done; |
| 2708 | } |
| 2709 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2710 | /* Drop queues */ |
| 2711 | skb_queue_purge(&hdev->rx_q); |
| 2712 | skb_queue_purge(&hdev->cmd_q); |
| 2713 | |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 2714 | hci_dev_lock(hdev); |
Andre Guedes | 1f9b9a5 | 2013-04-30 15:29:27 -0300 | [diff] [blame] | 2715 | hci_inquiry_cache_flush(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2716 | hci_conn_hash_flush(hdev); |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 2717 | hci_dev_unlock(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2718 | |
| 2719 | if (hdev->flush) |
| 2720 | hdev->flush(hdev); |
| 2721 | |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 2722 | atomic_set(&hdev->cmd_cnt, 1); |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 2723 | hdev->acl_cnt = 0; hdev->sco_cnt = 0; hdev->le_cnt = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2724 | |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 2725 | ret = __hci_req_sync(hdev, hci_reset_req, 0, HCI_INIT_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2726 | |
| 2727 | done: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2728 | hci_req_unlock(hdev); |
| 2729 | hci_dev_put(hdev); |
| 2730 | return ret; |
| 2731 | } |
| 2732 | |
| 2733 | int hci_dev_reset_stat(__u16 dev) |
| 2734 | { |
| 2735 | struct hci_dev *hdev; |
| 2736 | int ret = 0; |
| 2737 | |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2738 | hdev = hci_dev_get(dev); |
| 2739 | if (!hdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2740 | return -ENODEV; |
| 2741 | |
Marcel Holtmann | 0736cfa | 2013-08-26 21:40:51 -0700 | [diff] [blame] | 2742 | if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { |
| 2743 | ret = -EBUSY; |
| 2744 | goto done; |
| 2745 | } |
| 2746 | |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 2747 | if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) { |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 2748 | ret = -EOPNOTSUPP; |
| 2749 | goto done; |
| 2750 | } |
| 2751 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2752 | memset(&hdev->stat, 0, sizeof(struct hci_dev_stats)); |
| 2753 | |
Marcel Holtmann | 0736cfa | 2013-08-26 21:40:51 -0700 | [diff] [blame] | 2754 | done: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2755 | hci_dev_put(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2756 | return ret; |
| 2757 | } |
| 2758 | |
Johan Hedberg | 123abc0 | 2014-07-10 12:09:07 +0300 | [diff] [blame] | 2759 | static void hci_update_scan_state(struct hci_dev *hdev, u8 scan) |
| 2760 | { |
Johan Hedberg | bc6d2d0 | 2014-07-10 12:09:08 +0300 | [diff] [blame] | 2761 | bool conn_changed, discov_changed; |
Johan Hedberg | 123abc0 | 2014-07-10 12:09:07 +0300 | [diff] [blame] | 2762 | |
| 2763 | BT_DBG("%s scan 0x%02x", hdev->name, scan); |
| 2764 | |
| 2765 | if ((scan & SCAN_PAGE)) |
| 2766 | conn_changed = !test_and_set_bit(HCI_CONNECTABLE, |
| 2767 | &hdev->dev_flags); |
| 2768 | else |
| 2769 | conn_changed = test_and_clear_bit(HCI_CONNECTABLE, |
| 2770 | &hdev->dev_flags); |
| 2771 | |
Johan Hedberg | bc6d2d0 | 2014-07-10 12:09:08 +0300 | [diff] [blame] | 2772 | if ((scan & SCAN_INQUIRY)) { |
| 2773 | discov_changed = !test_and_set_bit(HCI_DISCOVERABLE, |
| 2774 | &hdev->dev_flags); |
| 2775 | } else { |
| 2776 | clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); |
| 2777 | discov_changed = test_and_clear_bit(HCI_DISCOVERABLE, |
| 2778 | &hdev->dev_flags); |
| 2779 | } |
| 2780 | |
Johan Hedberg | 123abc0 | 2014-07-10 12:09:07 +0300 | [diff] [blame] | 2781 | if (!test_bit(HCI_MGMT, &hdev->dev_flags)) |
| 2782 | return; |
| 2783 | |
Johan Hedberg | bc6d2d0 | 2014-07-10 12:09:08 +0300 | [diff] [blame] | 2784 | if (conn_changed || discov_changed) { |
| 2785 | /* In case this was disabled through mgmt */ |
| 2786 | set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); |
| 2787 | |
| 2788 | if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) |
| 2789 | mgmt_update_adv_data(hdev); |
| 2790 | |
Johan Hedberg | 123abc0 | 2014-07-10 12:09:07 +0300 | [diff] [blame] | 2791 | mgmt_new_settings(hdev); |
Johan Hedberg | bc6d2d0 | 2014-07-10 12:09:08 +0300 | [diff] [blame] | 2792 | } |
Johan Hedberg | 123abc0 | 2014-07-10 12:09:07 +0300 | [diff] [blame] | 2793 | } |
| 2794 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2795 | int hci_dev_cmd(unsigned int cmd, void __user *arg) |
| 2796 | { |
| 2797 | struct hci_dev *hdev; |
| 2798 | struct hci_dev_req dr; |
| 2799 | int err = 0; |
| 2800 | |
| 2801 | if (copy_from_user(&dr, arg, sizeof(dr))) |
| 2802 | return -EFAULT; |
| 2803 | |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2804 | hdev = hci_dev_get(dr.dev_id); |
| 2805 | if (!hdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2806 | return -ENODEV; |
| 2807 | |
Marcel Holtmann | 0736cfa | 2013-08-26 21:40:51 -0700 | [diff] [blame] | 2808 | if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { |
| 2809 | err = -EBUSY; |
| 2810 | goto done; |
| 2811 | } |
| 2812 | |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 2813 | if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) { |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 2814 | err = -EOPNOTSUPP; |
| 2815 | goto done; |
| 2816 | } |
| 2817 | |
Marcel Holtmann | 5b69bef5 | 2013-10-10 10:02:08 -0700 | [diff] [blame] | 2818 | if (hdev->dev_type != HCI_BREDR) { |
| 2819 | err = -EOPNOTSUPP; |
| 2820 | goto done; |
| 2821 | } |
| 2822 | |
Johan Hedberg | 56f8790 | 2013-10-02 13:43:13 +0300 | [diff] [blame] | 2823 | if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) { |
| 2824 | err = -EOPNOTSUPP; |
| 2825 | goto done; |
| 2826 | } |
| 2827 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2828 | switch (cmd) { |
| 2829 | case HCISETAUTH: |
Johan Hedberg | 01178cd | 2013-03-05 20:37:41 +0200 | [diff] [blame] | 2830 | err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt, |
| 2831 | HCI_INIT_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2832 | break; |
| 2833 | |
| 2834 | case HCISETENCRYPT: |
| 2835 | if (!lmp_encrypt_capable(hdev)) { |
| 2836 | err = -EOPNOTSUPP; |
| 2837 | break; |
| 2838 | } |
| 2839 | |
| 2840 | if (!test_bit(HCI_AUTH, &hdev->flags)) { |
| 2841 | /* Auth must be enabled first */ |
Johan Hedberg | 01178cd | 2013-03-05 20:37:41 +0200 | [diff] [blame] | 2842 | err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt, |
| 2843 | HCI_INIT_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2844 | if (err) |
| 2845 | break; |
| 2846 | } |
| 2847 | |
Johan Hedberg | 01178cd | 2013-03-05 20:37:41 +0200 | [diff] [blame] | 2848 | err = hci_req_sync(hdev, hci_encrypt_req, dr.dev_opt, |
| 2849 | HCI_INIT_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2850 | break; |
| 2851 | |
| 2852 | case HCISETSCAN: |
Johan Hedberg | 01178cd | 2013-03-05 20:37:41 +0200 | [diff] [blame] | 2853 | err = hci_req_sync(hdev, hci_scan_req, dr.dev_opt, |
| 2854 | HCI_INIT_TIMEOUT); |
Johan Hedberg | 91a668b | 2014-07-09 13:28:26 +0300 | [diff] [blame] | 2855 | |
Johan Hedberg | bc6d2d0 | 2014-07-10 12:09:08 +0300 | [diff] [blame] | 2856 | /* Ensure that the connectable and discoverable states |
| 2857 | * get correctly modified as this was a non-mgmt change. |
Johan Hedberg | 91a668b | 2014-07-09 13:28:26 +0300 | [diff] [blame] | 2858 | */ |
Johan Hedberg | 123abc0 | 2014-07-10 12:09:07 +0300 | [diff] [blame] | 2859 | if (!err) |
| 2860 | hci_update_scan_state(hdev, dr.dev_opt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2861 | break; |
| 2862 | |
Marcel Holtmann | e4e8e37 | 2008-07-14 20:13:47 +0200 | [diff] [blame] | 2863 | case HCISETLINKPOL: |
Johan Hedberg | 01178cd | 2013-03-05 20:37:41 +0200 | [diff] [blame] | 2864 | err = hci_req_sync(hdev, hci_linkpol_req, dr.dev_opt, |
| 2865 | HCI_INIT_TIMEOUT); |
Marcel Holtmann | e4e8e37 | 2008-07-14 20:13:47 +0200 | [diff] [blame] | 2866 | break; |
| 2867 | |
| 2868 | case HCISETLINKMODE: |
| 2869 | hdev->link_mode = ((__u16) dr.dev_opt) & |
| 2870 | (HCI_LM_MASTER | HCI_LM_ACCEPT); |
| 2871 | break; |
| 2872 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2873 | case HCISETPTYPE: |
| 2874 | hdev->pkt_type = (__u16) dr.dev_opt; |
| 2875 | break; |
| 2876 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2877 | case HCISETACLMTU: |
Marcel Holtmann | e4e8e37 | 2008-07-14 20:13:47 +0200 | [diff] [blame] | 2878 | hdev->acl_mtu = *((__u16 *) &dr.dev_opt + 1); |
| 2879 | hdev->acl_pkts = *((__u16 *) &dr.dev_opt + 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2880 | break; |
| 2881 | |
| 2882 | case HCISETSCOMTU: |
Marcel Holtmann | e4e8e37 | 2008-07-14 20:13:47 +0200 | [diff] [blame] | 2883 | hdev->sco_mtu = *((__u16 *) &dr.dev_opt + 1); |
| 2884 | hdev->sco_pkts = *((__u16 *) &dr.dev_opt + 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2885 | break; |
| 2886 | |
| 2887 | default: |
| 2888 | err = -EINVAL; |
| 2889 | break; |
| 2890 | } |
Marcel Holtmann | e4e8e37 | 2008-07-14 20:13:47 +0200 | [diff] [blame] | 2891 | |
Marcel Holtmann | 0736cfa | 2013-08-26 21:40:51 -0700 | [diff] [blame] | 2892 | done: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2893 | hci_dev_put(hdev); |
| 2894 | return err; |
| 2895 | } |
| 2896 | |
| 2897 | int hci_get_dev_list(void __user *arg) |
| 2898 | { |
Luiz Augusto von Dentz | 8035ded | 2011-11-01 10:58:56 +0200 | [diff] [blame] | 2899 | struct hci_dev *hdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2900 | struct hci_dev_list_req *dl; |
| 2901 | struct hci_dev_req *dr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2902 | int n = 0, size, err; |
| 2903 | __u16 dev_num; |
| 2904 | |
| 2905 | if (get_user(dev_num, (__u16 __user *) arg)) |
| 2906 | return -EFAULT; |
| 2907 | |
| 2908 | if (!dev_num || dev_num > (PAGE_SIZE * 2) / sizeof(*dr)) |
| 2909 | return -EINVAL; |
| 2910 | |
| 2911 | size = sizeof(*dl) + dev_num * sizeof(*dr); |
| 2912 | |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2913 | dl = kzalloc(size, GFP_KERNEL); |
| 2914 | if (!dl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2915 | return -ENOMEM; |
| 2916 | |
| 2917 | dr = dl->dev_req; |
| 2918 | |
Gustavo F. Padovan | f20d09d | 2011-12-22 16:30:27 -0200 | [diff] [blame] | 2919 | read_lock(&hci_dev_list_lock); |
Luiz Augusto von Dentz | 8035ded | 2011-11-01 10:58:56 +0200 | [diff] [blame] | 2920 | list_for_each_entry(hdev, &hci_dev_list, list) { |
Marcel Holtmann | 2e84d8d | 2014-07-10 13:17:37 +0200 | [diff] [blame] | 2921 | unsigned long flags = hdev->flags; |
Johan Hedberg | c542a06 | 2011-01-26 13:11:03 +0200 | [diff] [blame] | 2922 | |
Marcel Holtmann | 2e84d8d | 2014-07-10 13:17:37 +0200 | [diff] [blame] | 2923 | /* When the auto-off is configured it means the transport |
| 2924 | * is running, but in that case still indicate that the |
| 2925 | * device is actually down. |
| 2926 | */ |
| 2927 | if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) |
| 2928 | flags &= ~BIT(HCI_UP); |
Johan Hedberg | c542a06 | 2011-01-26 13:11:03 +0200 | [diff] [blame] | 2929 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2930 | (dr + n)->dev_id = hdev->id; |
Marcel Holtmann | 2e84d8d | 2014-07-10 13:17:37 +0200 | [diff] [blame] | 2931 | (dr + n)->dev_opt = flags; |
Johan Hedberg | c542a06 | 2011-01-26 13:11:03 +0200 | [diff] [blame] | 2932 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2933 | if (++n >= dev_num) |
| 2934 | break; |
| 2935 | } |
Gustavo F. Padovan | f20d09d | 2011-12-22 16:30:27 -0200 | [diff] [blame] | 2936 | read_unlock(&hci_dev_list_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2937 | |
| 2938 | dl->dev_num = n; |
| 2939 | size = sizeof(*dl) + n * sizeof(*dr); |
| 2940 | |
| 2941 | err = copy_to_user(arg, dl, size); |
| 2942 | kfree(dl); |
| 2943 | |
| 2944 | return err ? -EFAULT : 0; |
| 2945 | } |
| 2946 | |
| 2947 | int hci_get_dev_info(void __user *arg) |
| 2948 | { |
| 2949 | struct hci_dev *hdev; |
| 2950 | struct hci_dev_info di; |
Marcel Holtmann | 2e84d8d | 2014-07-10 13:17:37 +0200 | [diff] [blame] | 2951 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2952 | int err = 0; |
| 2953 | |
| 2954 | if (copy_from_user(&di, arg, sizeof(di))) |
| 2955 | return -EFAULT; |
| 2956 | |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 2957 | hdev = hci_dev_get(di.dev_id); |
| 2958 | if (!hdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2959 | return -ENODEV; |
| 2960 | |
Marcel Holtmann | 2e84d8d | 2014-07-10 13:17:37 +0200 | [diff] [blame] | 2961 | /* When the auto-off is configured it means the transport |
| 2962 | * is running, but in that case still indicate that the |
| 2963 | * device is actually down. |
| 2964 | */ |
| 2965 | if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) |
| 2966 | flags = hdev->flags & ~BIT(HCI_UP); |
| 2967 | else |
| 2968 | flags = hdev->flags; |
Johan Hedberg | c542a06 | 2011-01-26 13:11:03 +0200 | [diff] [blame] | 2969 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2970 | strcpy(di.name, hdev->name); |
| 2971 | di.bdaddr = hdev->bdaddr; |
Marcel Holtmann | 60f2a3e | 2013-10-01 22:59:20 -0700 | [diff] [blame] | 2972 | di.type = (hdev->bus & 0x0f) | ((hdev->dev_type & 0x03) << 4); |
Marcel Holtmann | 2e84d8d | 2014-07-10 13:17:37 +0200 | [diff] [blame] | 2973 | di.flags = flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2974 | di.pkt_type = hdev->pkt_type; |
Johan Hedberg | 572c7f8 | 2012-10-19 20:57:46 +0300 | [diff] [blame] | 2975 | if (lmp_bredr_capable(hdev)) { |
| 2976 | di.acl_mtu = hdev->acl_mtu; |
| 2977 | di.acl_pkts = hdev->acl_pkts; |
| 2978 | di.sco_mtu = hdev->sco_mtu; |
| 2979 | di.sco_pkts = hdev->sco_pkts; |
| 2980 | } else { |
| 2981 | di.acl_mtu = hdev->le_mtu; |
| 2982 | di.acl_pkts = hdev->le_pkts; |
| 2983 | di.sco_mtu = 0; |
| 2984 | di.sco_pkts = 0; |
| 2985 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2986 | di.link_policy = hdev->link_policy; |
| 2987 | di.link_mode = hdev->link_mode; |
| 2988 | |
| 2989 | memcpy(&di.stat, &hdev->stat, sizeof(di.stat)); |
| 2990 | memcpy(&di.features, &hdev->features, sizeof(di.features)); |
| 2991 | |
| 2992 | if (copy_to_user(arg, &di, sizeof(di))) |
| 2993 | err = -EFAULT; |
| 2994 | |
| 2995 | hci_dev_put(hdev); |
| 2996 | |
| 2997 | return err; |
| 2998 | } |
| 2999 | |
| 3000 | /* ---- Interface to HCI drivers ---- */ |
| 3001 | |
Marcel Holtmann | 611b30f | 2009-06-08 14:41:38 +0200 | [diff] [blame] | 3002 | static int hci_rfkill_set_block(void *data, bool blocked) |
| 3003 | { |
| 3004 | struct hci_dev *hdev = data; |
| 3005 | |
| 3006 | BT_DBG("%p name %s blocked %d", hdev, hdev->name, blocked); |
| 3007 | |
Marcel Holtmann | 0736cfa | 2013-08-26 21:40:51 -0700 | [diff] [blame] | 3008 | if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) |
| 3009 | return -EBUSY; |
| 3010 | |
Johan Hedberg | 5e13036 | 2013-09-13 08:58:17 +0300 | [diff] [blame] | 3011 | if (blocked) { |
| 3012 | set_bit(HCI_RFKILLED, &hdev->dev_flags); |
Marcel Holtmann | d603b76 | 2014-07-06 12:11:14 +0200 | [diff] [blame] | 3013 | if (!test_bit(HCI_SETUP, &hdev->dev_flags) && |
| 3014 | !test_bit(HCI_CONFIG, &hdev->dev_flags)) |
Johan Hedberg | bf54303 | 2013-09-13 08:58:18 +0300 | [diff] [blame] | 3015 | hci_dev_do_close(hdev); |
Johan Hedberg | 5e13036 | 2013-09-13 08:58:17 +0300 | [diff] [blame] | 3016 | } else { |
| 3017 | clear_bit(HCI_RFKILLED, &hdev->dev_flags); |
Gustavo Padovan | 1025c04 | 2013-09-27 11:56:14 -0300 | [diff] [blame] | 3018 | } |
Marcel Holtmann | 611b30f | 2009-06-08 14:41:38 +0200 | [diff] [blame] | 3019 | |
| 3020 | return 0; |
| 3021 | } |
| 3022 | |
| 3023 | static const struct rfkill_ops hci_rfkill_ops = { |
| 3024 | .set_block = hci_rfkill_set_block, |
| 3025 | }; |
| 3026 | |
Johan Hedberg | ab81cbf | 2010-12-15 13:53:18 +0200 | [diff] [blame] | 3027 | static void hci_power_on(struct work_struct *work) |
| 3028 | { |
| 3029 | struct hci_dev *hdev = container_of(work, struct hci_dev, power_on); |
Johan Hedberg | 96570ff | 2013-05-29 09:51:29 +0300 | [diff] [blame] | 3030 | int err; |
Johan Hedberg | ab81cbf | 2010-12-15 13:53:18 +0200 | [diff] [blame] | 3031 | |
| 3032 | BT_DBG("%s", hdev->name); |
| 3033 | |
Johan Hedberg | cbed0ca | 2013-10-01 22:44:49 +0300 | [diff] [blame] | 3034 | err = hci_dev_do_open(hdev); |
Johan Hedberg | 96570ff | 2013-05-29 09:51:29 +0300 | [diff] [blame] | 3035 | if (err < 0) { |
| 3036 | mgmt_set_powered_failed(hdev, err); |
Johan Hedberg | ab81cbf | 2010-12-15 13:53:18 +0200 | [diff] [blame] | 3037 | return; |
Johan Hedberg | 96570ff | 2013-05-29 09:51:29 +0300 | [diff] [blame] | 3038 | } |
Johan Hedberg | ab81cbf | 2010-12-15 13:53:18 +0200 | [diff] [blame] | 3039 | |
Marcel Holtmann | a5c8f27 | 2013-10-06 01:08:57 -0700 | [diff] [blame] | 3040 | /* During the HCI setup phase, a few error conditions are |
| 3041 | * ignored and they need to be checked now. If they are still |
| 3042 | * valid, it is important to turn the device back off. |
| 3043 | */ |
| 3044 | if (test_bit(HCI_RFKILLED, &hdev->dev_flags) || |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 3045 | test_bit(HCI_UNCONFIGURED, &hdev->dev_flags) || |
Marcel Holtmann | a5c8f27 | 2013-10-06 01:08:57 -0700 | [diff] [blame] | 3046 | (hdev->dev_type == HCI_BREDR && |
| 3047 | !bacmp(&hdev->bdaddr, BDADDR_ANY) && |
| 3048 | !bacmp(&hdev->static_addr, BDADDR_ANY))) { |
Johan Hedberg | bf54303 | 2013-09-13 08:58:18 +0300 | [diff] [blame] | 3049 | clear_bit(HCI_AUTO_OFF, &hdev->dev_flags); |
| 3050 | hci_dev_do_close(hdev); |
| 3051 | } else if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) { |
Johan Hedberg | 1920257 | 2013-01-14 22:33:51 +0200 | [diff] [blame] | 3052 | queue_delayed_work(hdev->req_workqueue, &hdev->power_off, |
| 3053 | HCI_AUTO_OFF_TIMEOUT); |
Johan Hedberg | bf54303 | 2013-09-13 08:58:18 +0300 | [diff] [blame] | 3054 | } |
Johan Hedberg | ab81cbf | 2010-12-15 13:53:18 +0200 | [diff] [blame] | 3055 | |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 3056 | if (test_and_clear_bit(HCI_SETUP, &hdev->dev_flags)) { |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 3057 | /* For unconfigured devices, set the HCI_RAW flag |
| 3058 | * so that userspace can easily identify them. |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 3059 | */ |
| 3060 | if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) |
| 3061 | set_bit(HCI_RAW, &hdev->flags); |
Marcel Holtmann | 0602a8a | 2014-07-02 21:30:54 +0200 | [diff] [blame] | 3062 | |
| 3063 | /* For fully configured devices, this will send |
| 3064 | * the Index Added event. For unconfigured devices, |
| 3065 | * it will send Unconfigued Index Added event. |
| 3066 | * |
| 3067 | * Devices with HCI_QUIRK_RAW_DEVICE are ignored |
| 3068 | * and no event will be send. |
| 3069 | */ |
Johan Hedberg | 744cf19 | 2011-11-08 20:40:14 +0200 | [diff] [blame] | 3070 | mgmt_index_added(hdev); |
Marcel Holtmann | d603b76 | 2014-07-06 12:11:14 +0200 | [diff] [blame] | 3071 | } else if (test_and_clear_bit(HCI_CONFIG, &hdev->dev_flags)) { |
Marcel Holtmann | 5ea234d | 2014-07-06 12:11:16 +0200 | [diff] [blame] | 3072 | /* When the controller is now configured, then it |
| 3073 | * is important to clear the HCI_RAW flag. |
| 3074 | */ |
| 3075 | if (!test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) |
| 3076 | clear_bit(HCI_RAW, &hdev->flags); |
| 3077 | |
Marcel Holtmann | d603b76 | 2014-07-06 12:11:14 +0200 | [diff] [blame] | 3078 | /* Powering on the controller with HCI_CONFIG set only |
| 3079 | * happens with the transition from unconfigured to |
| 3080 | * configured. This will send the Index Added event. |
| 3081 | */ |
| 3082 | mgmt_index_added(hdev); |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 3083 | } |
Johan Hedberg | ab81cbf | 2010-12-15 13:53:18 +0200 | [diff] [blame] | 3084 | } |
| 3085 | |
| 3086 | static void hci_power_off(struct work_struct *work) |
| 3087 | { |
Johan Hedberg | 3243553 | 2011-11-07 22:16:04 +0200 | [diff] [blame] | 3088 | struct hci_dev *hdev = container_of(work, struct hci_dev, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 3089 | power_off.work); |
Johan Hedberg | ab81cbf | 2010-12-15 13:53:18 +0200 | [diff] [blame] | 3090 | |
| 3091 | BT_DBG("%s", hdev->name); |
| 3092 | |
Marcel Holtmann | 8ee5654 | 2012-02-21 12:33:48 +0100 | [diff] [blame] | 3093 | hci_dev_do_close(hdev); |
Johan Hedberg | ab81cbf | 2010-12-15 13:53:18 +0200 | [diff] [blame] | 3094 | } |
| 3095 | |
Johan Hedberg | 16ab91a | 2011-11-07 22:16:02 +0200 | [diff] [blame] | 3096 | static void hci_discov_off(struct work_struct *work) |
| 3097 | { |
| 3098 | struct hci_dev *hdev; |
Johan Hedberg | 16ab91a | 2011-11-07 22:16:02 +0200 | [diff] [blame] | 3099 | |
| 3100 | hdev = container_of(work, struct hci_dev, discov_off.work); |
| 3101 | |
| 3102 | BT_DBG("%s", hdev->name); |
| 3103 | |
Marcel Holtmann | d1967ff | 2013-10-15 10:57:40 -0700 | [diff] [blame] | 3104 | mgmt_discoverable_timeout(hdev); |
Johan Hedberg | 16ab91a | 2011-11-07 22:16:02 +0200 | [diff] [blame] | 3105 | } |
| 3106 | |
Johan Hedberg | 35f7498 | 2014-02-18 17:14:32 +0200 | [diff] [blame] | 3107 | void hci_uuids_clear(struct hci_dev *hdev) |
Johan Hedberg | 2aeb9a1 | 2011-01-04 12:08:51 +0200 | [diff] [blame] | 3108 | { |
Johan Hedberg | 4821002 | 2013-01-27 00:31:28 +0200 | [diff] [blame] | 3109 | struct bt_uuid *uuid, *tmp; |
Johan Hedberg | 2aeb9a1 | 2011-01-04 12:08:51 +0200 | [diff] [blame] | 3110 | |
Johan Hedberg | 4821002 | 2013-01-27 00:31:28 +0200 | [diff] [blame] | 3111 | list_for_each_entry_safe(uuid, tmp, &hdev->uuids, list) { |
| 3112 | list_del(&uuid->list); |
Johan Hedberg | 2aeb9a1 | 2011-01-04 12:08:51 +0200 | [diff] [blame] | 3113 | kfree(uuid); |
| 3114 | } |
Johan Hedberg | 2aeb9a1 | 2011-01-04 12:08:51 +0200 | [diff] [blame] | 3115 | } |
| 3116 | |
Johan Hedberg | 35f7498 | 2014-02-18 17:14:32 +0200 | [diff] [blame] | 3117 | void hci_link_keys_clear(struct hci_dev *hdev) |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3118 | { |
| 3119 | struct list_head *p, *n; |
| 3120 | |
| 3121 | list_for_each_safe(p, n, &hdev->link_keys) { |
| 3122 | struct link_key *key; |
| 3123 | |
| 3124 | key = list_entry(p, struct link_key, list); |
| 3125 | |
| 3126 | list_del(p); |
| 3127 | kfree(key); |
| 3128 | } |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3129 | } |
| 3130 | |
Johan Hedberg | 35f7498 | 2014-02-18 17:14:32 +0200 | [diff] [blame] | 3131 | void hci_smp_ltks_clear(struct hci_dev *hdev) |
Vinicius Costa Gomes | b899efa | 2012-02-02 21:08:00 -0300 | [diff] [blame] | 3132 | { |
| 3133 | struct smp_ltk *k, *tmp; |
| 3134 | |
| 3135 | list_for_each_entry_safe(k, tmp, &hdev->long_term_keys, list) { |
| 3136 | list_del(&k->list); |
| 3137 | kfree(k); |
| 3138 | } |
Vinicius Costa Gomes | b899efa | 2012-02-02 21:08:00 -0300 | [diff] [blame] | 3139 | } |
| 3140 | |
Johan Hedberg | 970c4e4 | 2014-02-18 10:19:33 +0200 | [diff] [blame] | 3141 | void hci_smp_irks_clear(struct hci_dev *hdev) |
| 3142 | { |
| 3143 | struct smp_irk *k, *tmp; |
| 3144 | |
| 3145 | list_for_each_entry_safe(k, tmp, &hdev->identity_resolving_keys, list) { |
| 3146 | list_del(&k->list); |
| 3147 | kfree(k); |
| 3148 | } |
| 3149 | } |
| 3150 | |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3151 | struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr) |
| 3152 | { |
Luiz Augusto von Dentz | 8035ded | 2011-11-01 10:58:56 +0200 | [diff] [blame] | 3153 | struct link_key *k; |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3154 | |
Luiz Augusto von Dentz | 8035ded | 2011-11-01 10:58:56 +0200 | [diff] [blame] | 3155 | list_for_each_entry(k, &hdev->link_keys, list) |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3156 | if (bacmp(bdaddr, &k->bdaddr) == 0) |
| 3157 | return k; |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3158 | |
| 3159 | return NULL; |
| 3160 | } |
| 3161 | |
Vishal Agarwal | 745c0ce | 2012-04-13 17:43:22 +0530 | [diff] [blame] | 3162 | static bool hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 3163 | u8 key_type, u8 old_key_type) |
Johan Hedberg | d25e28a | 2011-04-28 11:28:59 -0700 | [diff] [blame] | 3164 | { |
| 3165 | /* Legacy key */ |
| 3166 | if (key_type < 0x03) |
Vishal Agarwal | 745c0ce | 2012-04-13 17:43:22 +0530 | [diff] [blame] | 3167 | return true; |
Johan Hedberg | d25e28a | 2011-04-28 11:28:59 -0700 | [diff] [blame] | 3168 | |
| 3169 | /* Debug keys are insecure so don't store them persistently */ |
| 3170 | if (key_type == HCI_LK_DEBUG_COMBINATION) |
Vishal Agarwal | 745c0ce | 2012-04-13 17:43:22 +0530 | [diff] [blame] | 3171 | return false; |
Johan Hedberg | d25e28a | 2011-04-28 11:28:59 -0700 | [diff] [blame] | 3172 | |
| 3173 | /* Changed combination key and there's no previous one */ |
| 3174 | if (key_type == HCI_LK_CHANGED_COMBINATION && old_key_type == 0xff) |
Vishal Agarwal | 745c0ce | 2012-04-13 17:43:22 +0530 | [diff] [blame] | 3175 | return false; |
Johan Hedberg | d25e28a | 2011-04-28 11:28:59 -0700 | [diff] [blame] | 3176 | |
| 3177 | /* Security mode 3 case */ |
| 3178 | if (!conn) |
Vishal Agarwal | 745c0ce | 2012-04-13 17:43:22 +0530 | [diff] [blame] | 3179 | return true; |
Johan Hedberg | d25e28a | 2011-04-28 11:28:59 -0700 | [diff] [blame] | 3180 | |
| 3181 | /* Neither local nor remote side had no-bonding as requirement */ |
| 3182 | if (conn->auth_type > 0x01 && conn->remote_auth > 0x01) |
Vishal Agarwal | 745c0ce | 2012-04-13 17:43:22 +0530 | [diff] [blame] | 3183 | return true; |
Johan Hedberg | d25e28a | 2011-04-28 11:28:59 -0700 | [diff] [blame] | 3184 | |
| 3185 | /* Local side had dedicated bonding as requirement */ |
| 3186 | if (conn->auth_type == 0x02 || conn->auth_type == 0x03) |
Vishal Agarwal | 745c0ce | 2012-04-13 17:43:22 +0530 | [diff] [blame] | 3187 | return true; |
Johan Hedberg | d25e28a | 2011-04-28 11:28:59 -0700 | [diff] [blame] | 3188 | |
| 3189 | /* Remote side had dedicated bonding as requirement */ |
| 3190 | if (conn->remote_auth == 0x02 || conn->remote_auth == 0x03) |
Vishal Agarwal | 745c0ce | 2012-04-13 17:43:22 +0530 | [diff] [blame] | 3191 | return true; |
Johan Hedberg | d25e28a | 2011-04-28 11:28:59 -0700 | [diff] [blame] | 3192 | |
| 3193 | /* If none of the above criteria match, then don't store the key |
| 3194 | * persistently */ |
Vishal Agarwal | 745c0ce | 2012-04-13 17:43:22 +0530 | [diff] [blame] | 3195 | return false; |
Johan Hedberg | d25e28a | 2011-04-28 11:28:59 -0700 | [diff] [blame] | 3196 | } |
| 3197 | |
Johan Hedberg | e804d25 | 2014-07-16 11:42:28 +0300 | [diff] [blame] | 3198 | static u8 ltk_role(u8 type) |
Johan Hedberg | 98a0b84 | 2014-01-30 19:40:00 -0800 | [diff] [blame] | 3199 | { |
Johan Hedberg | e804d25 | 2014-07-16 11:42:28 +0300 | [diff] [blame] | 3200 | if (type == SMP_LTK) |
| 3201 | return HCI_ROLE_MASTER; |
Johan Hedberg | 98a0b84 | 2014-01-30 19:40:00 -0800 | [diff] [blame] | 3202 | |
Johan Hedberg | e804d25 | 2014-07-16 11:42:28 +0300 | [diff] [blame] | 3203 | return HCI_ROLE_SLAVE; |
Johan Hedberg | 98a0b84 | 2014-01-30 19:40:00 -0800 | [diff] [blame] | 3204 | } |
| 3205 | |
Marcel Holtmann | fe39c7b | 2014-02-27 16:00:28 -0800 | [diff] [blame] | 3206 | struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, __le64 rand, |
Johan Hedberg | e804d25 | 2014-07-16 11:42:28 +0300 | [diff] [blame] | 3207 | u8 role) |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3208 | { |
Vinicius Costa Gomes | c9839a1 | 2012-02-02 21:08:01 -0300 | [diff] [blame] | 3209 | struct smp_ltk *k; |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3210 | |
Vinicius Costa Gomes | c9839a1 | 2012-02-02 21:08:01 -0300 | [diff] [blame] | 3211 | list_for_each_entry(k, &hdev->long_term_keys, list) { |
Marcel Holtmann | fe39c7b | 2014-02-27 16:00:28 -0800 | [diff] [blame] | 3212 | if (k->ediv != ediv || k->rand != rand) |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3213 | continue; |
| 3214 | |
Johan Hedberg | e804d25 | 2014-07-16 11:42:28 +0300 | [diff] [blame] | 3215 | if (ltk_role(k->type) != role) |
Johan Hedberg | 98a0b84 | 2014-01-30 19:40:00 -0800 | [diff] [blame] | 3216 | continue; |
| 3217 | |
Vinicius Costa Gomes | c9839a1 | 2012-02-02 21:08:01 -0300 | [diff] [blame] | 3218 | return k; |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3219 | } |
| 3220 | |
| 3221 | return NULL; |
| 3222 | } |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3223 | |
Vinicius Costa Gomes | c9839a1 | 2012-02-02 21:08:01 -0300 | [diff] [blame] | 3224 | struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, |
Johan Hedberg | e804d25 | 2014-07-16 11:42:28 +0300 | [diff] [blame] | 3225 | u8 addr_type, u8 role) |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3226 | { |
Vinicius Costa Gomes | c9839a1 | 2012-02-02 21:08:01 -0300 | [diff] [blame] | 3227 | struct smp_ltk *k; |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3228 | |
Vinicius Costa Gomes | c9839a1 | 2012-02-02 21:08:01 -0300 | [diff] [blame] | 3229 | list_for_each_entry(k, &hdev->long_term_keys, list) |
| 3230 | if (addr_type == k->bdaddr_type && |
Johan Hedberg | 98a0b84 | 2014-01-30 19:40:00 -0800 | [diff] [blame] | 3231 | bacmp(bdaddr, &k->bdaddr) == 0 && |
Johan Hedberg | e804d25 | 2014-07-16 11:42:28 +0300 | [diff] [blame] | 3232 | ltk_role(k->type) == role) |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3233 | return k; |
| 3234 | |
| 3235 | return NULL; |
| 3236 | } |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3237 | |
Johan Hedberg | 970c4e4 | 2014-02-18 10:19:33 +0200 | [diff] [blame] | 3238 | struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa) |
| 3239 | { |
| 3240 | struct smp_irk *irk; |
| 3241 | |
| 3242 | list_for_each_entry(irk, &hdev->identity_resolving_keys, list) { |
| 3243 | if (!bacmp(&irk->rpa, rpa)) |
| 3244 | return irk; |
| 3245 | } |
| 3246 | |
| 3247 | list_for_each_entry(irk, &hdev->identity_resolving_keys, list) { |
Johan Hedberg | defce9e | 2014-08-08 09:37:17 +0300 | [diff] [blame] | 3248 | if (smp_irk_matches(hdev, irk->val, rpa)) { |
Johan Hedberg | 970c4e4 | 2014-02-18 10:19:33 +0200 | [diff] [blame] | 3249 | bacpy(&irk->rpa, rpa); |
| 3250 | return irk; |
| 3251 | } |
| 3252 | } |
| 3253 | |
| 3254 | return NULL; |
| 3255 | } |
| 3256 | |
| 3257 | struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| 3258 | u8 addr_type) |
| 3259 | { |
| 3260 | struct smp_irk *irk; |
| 3261 | |
Johan Hedberg | 6cfc998 | 2014-02-18 21:41:35 +0200 | [diff] [blame] | 3262 | /* Identity Address must be public or static random */ |
| 3263 | if (addr_type == ADDR_LE_DEV_RANDOM && (bdaddr->b[5] & 0xc0) != 0xc0) |
| 3264 | return NULL; |
| 3265 | |
Johan Hedberg | 970c4e4 | 2014-02-18 10:19:33 +0200 | [diff] [blame] | 3266 | list_for_each_entry(irk, &hdev->identity_resolving_keys, list) { |
| 3267 | if (addr_type == irk->addr_type && |
| 3268 | bacmp(bdaddr, &irk->bdaddr) == 0) |
| 3269 | return irk; |
| 3270 | } |
| 3271 | |
| 3272 | return NULL; |
| 3273 | } |
| 3274 | |
Johan Hedberg | 567fa2a | 2014-06-24 13:15:48 +0300 | [diff] [blame] | 3275 | struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, |
Johan Hedberg | 7652ff6 | 2014-06-24 13:15:49 +0300 | [diff] [blame] | 3276 | bdaddr_t *bdaddr, u8 *val, u8 type, |
| 3277 | u8 pin_len, bool *persistent) |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3278 | { |
| 3279 | struct link_key *key, *old_key; |
Vishal Agarwal | 745c0ce | 2012-04-13 17:43:22 +0530 | [diff] [blame] | 3280 | u8 old_key_type; |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3281 | |
| 3282 | old_key = hci_find_link_key(hdev, bdaddr); |
| 3283 | if (old_key) { |
| 3284 | old_key_type = old_key->type; |
| 3285 | key = old_key; |
| 3286 | } else { |
Johan Hedberg | 12adcf3 | 2011-04-28 11:29:00 -0700 | [diff] [blame] | 3287 | old_key_type = conn ? conn->key_type : 0xff; |
Johan Hedberg | 0a14ab4 | 2014-02-19 14:57:43 +0200 | [diff] [blame] | 3288 | key = kzalloc(sizeof(*key), GFP_KERNEL); |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3289 | if (!key) |
Johan Hedberg | 567fa2a | 2014-06-24 13:15:48 +0300 | [diff] [blame] | 3290 | return NULL; |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3291 | list_add(&key->list, &hdev->link_keys); |
| 3292 | } |
| 3293 | |
Andrei Emeltchenko | 6ed93dc | 2012-09-25 12:49:43 +0300 | [diff] [blame] | 3294 | BT_DBG("%s key for %pMR type %u", hdev->name, bdaddr, type); |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3295 | |
Johan Hedberg | d25e28a | 2011-04-28 11:28:59 -0700 | [diff] [blame] | 3296 | /* Some buggy controller combinations generate a changed |
| 3297 | * combination key for legacy pairing even when there's no |
| 3298 | * previous key */ |
| 3299 | if (type == HCI_LK_CHANGED_COMBINATION && |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 3300 | (!conn || conn->remote_auth == 0xff) && old_key_type == 0xff) { |
Johan Hedberg | d25e28a | 2011-04-28 11:28:59 -0700 | [diff] [blame] | 3301 | type = HCI_LK_COMBINATION; |
Johan Hedberg | 655fe6e | 2011-04-28 11:29:01 -0700 | [diff] [blame] | 3302 | if (conn) |
| 3303 | conn->key_type = type; |
| 3304 | } |
Johan Hedberg | d25e28a | 2011-04-28 11:28:59 -0700 | [diff] [blame] | 3305 | |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3306 | bacpy(&key->bdaddr, bdaddr); |
Andrei Emeltchenko | 9b3b446 | 2012-05-23 11:31:20 +0300 | [diff] [blame] | 3307 | memcpy(key->val, val, HCI_LINK_KEY_SIZE); |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3308 | key->pin_len = pin_len; |
| 3309 | |
Waldemar Rymarkiewicz | b6020ba | 2011-04-28 12:07:53 +0200 | [diff] [blame] | 3310 | if (type == HCI_LK_CHANGED_COMBINATION) |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3311 | key->type = old_key_type; |
Johan Hedberg | 4748fed | 2011-04-28 11:29:02 -0700 | [diff] [blame] | 3312 | else |
| 3313 | key->type = type; |
| 3314 | |
Johan Hedberg | 7652ff6 | 2014-06-24 13:15:49 +0300 | [diff] [blame] | 3315 | if (persistent) |
| 3316 | *persistent = hci_persistent_key(hdev, conn, type, |
| 3317 | old_key_type); |
Johan Hedberg | 4df378a | 2011-04-28 11:29:03 -0700 | [diff] [blame] | 3318 | |
Johan Hedberg | 567fa2a | 2014-06-24 13:15:48 +0300 | [diff] [blame] | 3319 | return key; |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3320 | } |
| 3321 | |
Johan Hedberg | ca9142b | 2014-02-19 14:57:44 +0200 | [diff] [blame] | 3322 | struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
Johan Hedberg | 35d7027 | 2014-02-19 14:57:47 +0200 | [diff] [blame] | 3323 | u8 addr_type, u8 type, u8 authenticated, |
Marcel Holtmann | fe39c7b | 2014-02-27 16:00:28 -0800 | [diff] [blame] | 3324 | u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand) |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3325 | { |
Vinicius Costa Gomes | c9839a1 | 2012-02-02 21:08:01 -0300 | [diff] [blame] | 3326 | struct smp_ltk *key, *old_key; |
Johan Hedberg | e804d25 | 2014-07-16 11:42:28 +0300 | [diff] [blame] | 3327 | u8 role = ltk_role(type); |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3328 | |
Johan Hedberg | e804d25 | 2014-07-16 11:42:28 +0300 | [diff] [blame] | 3329 | old_key = hci_find_ltk_by_addr(hdev, bdaddr, addr_type, role); |
Vinicius Costa Gomes | c9839a1 | 2012-02-02 21:08:01 -0300 | [diff] [blame] | 3330 | if (old_key) |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3331 | key = old_key; |
Vinicius Costa Gomes | c9839a1 | 2012-02-02 21:08:01 -0300 | [diff] [blame] | 3332 | else { |
Johan Hedberg | 0a14ab4 | 2014-02-19 14:57:43 +0200 | [diff] [blame] | 3333 | key = kzalloc(sizeof(*key), GFP_KERNEL); |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3334 | if (!key) |
Johan Hedberg | ca9142b | 2014-02-19 14:57:44 +0200 | [diff] [blame] | 3335 | return NULL; |
Vinicius Costa Gomes | c9839a1 | 2012-02-02 21:08:01 -0300 | [diff] [blame] | 3336 | list_add(&key->list, &hdev->long_term_keys); |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3337 | } |
| 3338 | |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3339 | bacpy(&key->bdaddr, bdaddr); |
Vinicius Costa Gomes | c9839a1 | 2012-02-02 21:08:01 -0300 | [diff] [blame] | 3340 | key->bdaddr_type = addr_type; |
| 3341 | memcpy(key->val, tk, sizeof(key->val)); |
| 3342 | key->authenticated = authenticated; |
| 3343 | key->ediv = ediv; |
Marcel Holtmann | fe39c7b | 2014-02-27 16:00:28 -0800 | [diff] [blame] | 3344 | key->rand = rand; |
Vinicius Costa Gomes | c9839a1 | 2012-02-02 21:08:01 -0300 | [diff] [blame] | 3345 | key->enc_size = enc_size; |
| 3346 | key->type = type; |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3347 | |
Johan Hedberg | ca9142b | 2014-02-19 14:57:44 +0200 | [diff] [blame] | 3348 | return key; |
Vinicius Costa Gomes | 75d262c | 2011-07-07 18:59:36 -0300 | [diff] [blame] | 3349 | } |
| 3350 | |
Johan Hedberg | ca9142b | 2014-02-19 14:57:44 +0200 | [diff] [blame] | 3351 | struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| 3352 | u8 addr_type, u8 val[16], bdaddr_t *rpa) |
Johan Hedberg | 970c4e4 | 2014-02-18 10:19:33 +0200 | [diff] [blame] | 3353 | { |
| 3354 | struct smp_irk *irk; |
| 3355 | |
| 3356 | irk = hci_find_irk_by_addr(hdev, bdaddr, addr_type); |
| 3357 | if (!irk) { |
| 3358 | irk = kzalloc(sizeof(*irk), GFP_KERNEL); |
| 3359 | if (!irk) |
Johan Hedberg | ca9142b | 2014-02-19 14:57:44 +0200 | [diff] [blame] | 3360 | return NULL; |
Johan Hedberg | 970c4e4 | 2014-02-18 10:19:33 +0200 | [diff] [blame] | 3361 | |
| 3362 | bacpy(&irk->bdaddr, bdaddr); |
| 3363 | irk->addr_type = addr_type; |
| 3364 | |
| 3365 | list_add(&irk->list, &hdev->identity_resolving_keys); |
| 3366 | } |
| 3367 | |
| 3368 | memcpy(irk->val, val, 16); |
| 3369 | bacpy(&irk->rpa, rpa); |
| 3370 | |
Johan Hedberg | ca9142b | 2014-02-19 14:57:44 +0200 | [diff] [blame] | 3371 | return irk; |
Johan Hedberg | 970c4e4 | 2014-02-18 10:19:33 +0200 | [diff] [blame] | 3372 | } |
| 3373 | |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3374 | int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr) |
| 3375 | { |
| 3376 | struct link_key *key; |
| 3377 | |
| 3378 | key = hci_find_link_key(hdev, bdaddr); |
| 3379 | if (!key) |
| 3380 | return -ENOENT; |
| 3381 | |
Andrei Emeltchenko | 6ed93dc | 2012-09-25 12:49:43 +0300 | [diff] [blame] | 3382 | BT_DBG("%s removing %pMR", hdev->name, bdaddr); |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 3383 | |
| 3384 | list_del(&key->list); |
| 3385 | kfree(key); |
| 3386 | |
| 3387 | return 0; |
| 3388 | } |
| 3389 | |
Johan Hedberg | e0b2b27 | 2014-02-18 17:14:31 +0200 | [diff] [blame] | 3390 | int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type) |
Vinicius Costa Gomes | b899efa | 2012-02-02 21:08:00 -0300 | [diff] [blame] | 3391 | { |
| 3392 | struct smp_ltk *k, *tmp; |
Johan Hedberg | c51ffa0 | 2014-02-18 17:14:33 +0200 | [diff] [blame] | 3393 | int removed = 0; |
Vinicius Costa Gomes | b899efa | 2012-02-02 21:08:00 -0300 | [diff] [blame] | 3394 | |
| 3395 | list_for_each_entry_safe(k, tmp, &hdev->long_term_keys, list) { |
Johan Hedberg | e0b2b27 | 2014-02-18 17:14:31 +0200 | [diff] [blame] | 3396 | if (bacmp(bdaddr, &k->bdaddr) || k->bdaddr_type != bdaddr_type) |
Vinicius Costa Gomes | b899efa | 2012-02-02 21:08:00 -0300 | [diff] [blame] | 3397 | continue; |
| 3398 | |
Andrei Emeltchenko | 6ed93dc | 2012-09-25 12:49:43 +0300 | [diff] [blame] | 3399 | BT_DBG("%s removing %pMR", hdev->name, bdaddr); |
Vinicius Costa Gomes | b899efa | 2012-02-02 21:08:00 -0300 | [diff] [blame] | 3400 | |
| 3401 | list_del(&k->list); |
| 3402 | kfree(k); |
Johan Hedberg | c51ffa0 | 2014-02-18 17:14:33 +0200 | [diff] [blame] | 3403 | removed++; |
Vinicius Costa Gomes | b899efa | 2012-02-02 21:08:00 -0300 | [diff] [blame] | 3404 | } |
| 3405 | |
Johan Hedberg | c51ffa0 | 2014-02-18 17:14:33 +0200 | [diff] [blame] | 3406 | return removed ? 0 : -ENOENT; |
Vinicius Costa Gomes | b899efa | 2012-02-02 21:08:00 -0300 | [diff] [blame] | 3407 | } |
| 3408 | |
Johan Hedberg | a7ec733 | 2014-02-18 17:14:35 +0200 | [diff] [blame] | 3409 | void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type) |
| 3410 | { |
| 3411 | struct smp_irk *k, *tmp; |
| 3412 | |
Johan Hedberg | 668b7b1 | 2014-02-21 16:03:31 +0200 | [diff] [blame] | 3413 | list_for_each_entry_safe(k, tmp, &hdev->identity_resolving_keys, list) { |
Johan Hedberg | a7ec733 | 2014-02-18 17:14:35 +0200 | [diff] [blame] | 3414 | if (bacmp(bdaddr, &k->bdaddr) || k->addr_type != addr_type) |
| 3415 | continue; |
| 3416 | |
| 3417 | BT_DBG("%s removing %pMR", hdev->name, bdaddr); |
| 3418 | |
| 3419 | list_del(&k->list); |
| 3420 | kfree(k); |
| 3421 | } |
| 3422 | } |
| 3423 | |
Ville Tervo | 6bd3232 | 2011-02-16 16:32:41 +0200 | [diff] [blame] | 3424 | /* HCI command timer function */ |
Marcel Holtmann | 65cc2b4 | 2014-06-16 12:30:56 +0200 | [diff] [blame] | 3425 | static void hci_cmd_timeout(struct work_struct *work) |
Ville Tervo | 6bd3232 | 2011-02-16 16:32:41 +0200 | [diff] [blame] | 3426 | { |
Marcel Holtmann | 65cc2b4 | 2014-06-16 12:30:56 +0200 | [diff] [blame] | 3427 | struct hci_dev *hdev = container_of(work, struct hci_dev, |
| 3428 | cmd_timer.work); |
Ville Tervo | 6bd3232 | 2011-02-16 16:32:41 +0200 | [diff] [blame] | 3429 | |
Andrei Emeltchenko | bda4f23 | 2012-06-11 11:13:08 +0300 | [diff] [blame] | 3430 | if (hdev->sent_cmd) { |
| 3431 | struct hci_command_hdr *sent = (void *) hdev->sent_cmd->data; |
| 3432 | u16 opcode = __le16_to_cpu(sent->opcode); |
| 3433 | |
| 3434 | BT_ERR("%s command 0x%4.4x tx timeout", hdev->name, opcode); |
| 3435 | } else { |
| 3436 | BT_ERR("%s command tx timeout", hdev->name); |
| 3437 | } |
| 3438 | |
Ville Tervo | 6bd3232 | 2011-02-16 16:32:41 +0200 | [diff] [blame] | 3439 | atomic_set(&hdev->cmd_cnt, 1); |
Gustavo F. Padovan | c347b76 | 2011-12-14 23:53:47 -0200 | [diff] [blame] | 3440 | queue_work(hdev->workqueue, &hdev->cmd_work); |
Ville Tervo | 6bd3232 | 2011-02-16 16:32:41 +0200 | [diff] [blame] | 3441 | } |
| 3442 | |
Szymon Janc | 2763eda | 2011-03-22 13:12:22 +0100 | [diff] [blame] | 3443 | struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, |
Gustavo F. Padovan | 0412468 | 2012-03-08 01:25:00 -0300 | [diff] [blame] | 3444 | bdaddr_t *bdaddr) |
Szymon Janc | 2763eda | 2011-03-22 13:12:22 +0100 | [diff] [blame] | 3445 | { |
| 3446 | struct oob_data *data; |
| 3447 | |
| 3448 | list_for_each_entry(data, &hdev->remote_oob_data, list) |
| 3449 | if (bacmp(bdaddr, &data->bdaddr) == 0) |
| 3450 | return data; |
| 3451 | |
| 3452 | return NULL; |
| 3453 | } |
| 3454 | |
| 3455 | int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr) |
| 3456 | { |
| 3457 | struct oob_data *data; |
| 3458 | |
| 3459 | data = hci_find_remote_oob_data(hdev, bdaddr); |
| 3460 | if (!data) |
| 3461 | return -ENOENT; |
| 3462 | |
Andrei Emeltchenko | 6ed93dc | 2012-09-25 12:49:43 +0300 | [diff] [blame] | 3463 | BT_DBG("%s removing %pMR", hdev->name, bdaddr); |
Szymon Janc | 2763eda | 2011-03-22 13:12:22 +0100 | [diff] [blame] | 3464 | |
| 3465 | list_del(&data->list); |
| 3466 | kfree(data); |
| 3467 | |
| 3468 | return 0; |
| 3469 | } |
| 3470 | |
Johan Hedberg | 35f7498 | 2014-02-18 17:14:32 +0200 | [diff] [blame] | 3471 | void hci_remote_oob_data_clear(struct hci_dev *hdev) |
Szymon Janc | 2763eda | 2011-03-22 13:12:22 +0100 | [diff] [blame] | 3472 | { |
| 3473 | struct oob_data *data, *n; |
| 3474 | |
| 3475 | list_for_each_entry_safe(data, n, &hdev->remote_oob_data, list) { |
| 3476 | list_del(&data->list); |
| 3477 | kfree(data); |
| 3478 | } |
Szymon Janc | 2763eda | 2011-03-22 13:12:22 +0100 | [diff] [blame] | 3479 | } |
| 3480 | |
Marcel Holtmann | 0798872 | 2014-01-10 02:07:29 -0800 | [diff] [blame] | 3481 | int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| 3482 | u8 *hash, u8 *randomizer) |
Szymon Janc | 2763eda | 2011-03-22 13:12:22 +0100 | [diff] [blame] | 3483 | { |
| 3484 | struct oob_data *data; |
| 3485 | |
| 3486 | data = hci_find_remote_oob_data(hdev, bdaddr); |
Szymon Janc | 2763eda | 2011-03-22 13:12:22 +0100 | [diff] [blame] | 3487 | if (!data) { |
Johan Hedberg | 0a14ab4 | 2014-02-19 14:57:43 +0200 | [diff] [blame] | 3488 | data = kmalloc(sizeof(*data), GFP_KERNEL); |
Szymon Janc | 2763eda | 2011-03-22 13:12:22 +0100 | [diff] [blame] | 3489 | if (!data) |
| 3490 | return -ENOMEM; |
| 3491 | |
| 3492 | bacpy(&data->bdaddr, bdaddr); |
| 3493 | list_add(&data->list, &hdev->remote_oob_data); |
| 3494 | } |
| 3495 | |
Marcel Holtmann | 519ca9d | 2014-01-10 02:07:28 -0800 | [diff] [blame] | 3496 | memcpy(data->hash192, hash, sizeof(data->hash192)); |
| 3497 | memcpy(data->randomizer192, randomizer, sizeof(data->randomizer192)); |
Szymon Janc | 2763eda | 2011-03-22 13:12:22 +0100 | [diff] [blame] | 3498 | |
Marcel Holtmann | 0798872 | 2014-01-10 02:07:29 -0800 | [diff] [blame] | 3499 | memset(data->hash256, 0, sizeof(data->hash256)); |
| 3500 | memset(data->randomizer256, 0, sizeof(data->randomizer256)); |
| 3501 | |
| 3502 | BT_DBG("%s for %pMR", hdev->name, bdaddr); |
| 3503 | |
| 3504 | return 0; |
| 3505 | } |
| 3506 | |
| 3507 | int hci_add_remote_oob_ext_data(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| 3508 | u8 *hash192, u8 *randomizer192, |
| 3509 | u8 *hash256, u8 *randomizer256) |
| 3510 | { |
| 3511 | struct oob_data *data; |
| 3512 | |
| 3513 | data = hci_find_remote_oob_data(hdev, bdaddr); |
| 3514 | if (!data) { |
Johan Hedberg | 0a14ab4 | 2014-02-19 14:57:43 +0200 | [diff] [blame] | 3515 | data = kmalloc(sizeof(*data), GFP_KERNEL); |
Marcel Holtmann | 0798872 | 2014-01-10 02:07:29 -0800 | [diff] [blame] | 3516 | if (!data) |
| 3517 | return -ENOMEM; |
| 3518 | |
| 3519 | bacpy(&data->bdaddr, bdaddr); |
| 3520 | list_add(&data->list, &hdev->remote_oob_data); |
| 3521 | } |
| 3522 | |
| 3523 | memcpy(data->hash192, hash192, sizeof(data->hash192)); |
| 3524 | memcpy(data->randomizer192, randomizer192, sizeof(data->randomizer192)); |
| 3525 | |
| 3526 | memcpy(data->hash256, hash256, sizeof(data->hash256)); |
| 3527 | memcpy(data->randomizer256, randomizer256, sizeof(data->randomizer256)); |
| 3528 | |
Andrei Emeltchenko | 6ed93dc | 2012-09-25 12:49:43 +0300 | [diff] [blame] | 3529 | BT_DBG("%s for %pMR", hdev->name, bdaddr); |
Szymon Janc | 2763eda | 2011-03-22 13:12:22 +0100 | [diff] [blame] | 3530 | |
| 3531 | return 0; |
| 3532 | } |
| 3533 | |
Johan Hedberg | dcc36c1 | 2014-07-09 12:59:13 +0300 | [diff] [blame] | 3534 | struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *bdaddr_list, |
Marcel Holtmann | b9ee0a7 | 2013-10-17 17:24:13 -0700 | [diff] [blame] | 3535 | bdaddr_t *bdaddr, u8 type) |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3536 | { |
Luiz Augusto von Dentz | 8035ded | 2011-11-01 10:58:56 +0200 | [diff] [blame] | 3537 | struct bdaddr_list *b; |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3538 | |
Johan Hedberg | dcc36c1 | 2014-07-09 12:59:13 +0300 | [diff] [blame] | 3539 | list_for_each_entry(b, bdaddr_list, list) { |
Marcel Holtmann | b9ee0a7 | 2013-10-17 17:24:13 -0700 | [diff] [blame] | 3540 | if (!bacmp(&b->bdaddr, bdaddr) && b->bdaddr_type == type) |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3541 | return b; |
Marcel Holtmann | b9ee0a7 | 2013-10-17 17:24:13 -0700 | [diff] [blame] | 3542 | } |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3543 | |
| 3544 | return NULL; |
| 3545 | } |
| 3546 | |
Johan Hedberg | dcc36c1 | 2014-07-09 12:59:13 +0300 | [diff] [blame] | 3547 | void hci_bdaddr_list_clear(struct list_head *bdaddr_list) |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3548 | { |
| 3549 | struct list_head *p, *n; |
| 3550 | |
Johan Hedberg | dcc36c1 | 2014-07-09 12:59:13 +0300 | [diff] [blame] | 3551 | list_for_each_safe(p, n, bdaddr_list) { |
Marcel Holtmann | b9ee0a7 | 2013-10-17 17:24:13 -0700 | [diff] [blame] | 3552 | struct bdaddr_list *b = list_entry(p, struct bdaddr_list, list); |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3553 | |
| 3554 | list_del(p); |
| 3555 | kfree(b); |
| 3556 | } |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3557 | } |
| 3558 | |
Johan Hedberg | dcc36c1 | 2014-07-09 12:59:13 +0300 | [diff] [blame] | 3559 | int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type) |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3560 | { |
| 3561 | struct bdaddr_list *entry; |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3562 | |
Marcel Holtmann | b9ee0a7 | 2013-10-17 17:24:13 -0700 | [diff] [blame] | 3563 | if (!bacmp(bdaddr, BDADDR_ANY)) |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3564 | return -EBADF; |
| 3565 | |
Johan Hedberg | dcc36c1 | 2014-07-09 12:59:13 +0300 | [diff] [blame] | 3566 | if (hci_bdaddr_list_lookup(list, bdaddr, type)) |
Antti Julku | 5e76244 | 2011-08-25 16:48:02 +0300 | [diff] [blame] | 3567 | return -EEXIST; |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3568 | |
Johan Hedberg | 27f70f3 | 2014-07-21 10:50:06 +0300 | [diff] [blame] | 3569 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); |
Antti Julku | 5e76244 | 2011-08-25 16:48:02 +0300 | [diff] [blame] | 3570 | if (!entry) |
| 3571 | return -ENOMEM; |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3572 | |
| 3573 | bacpy(&entry->bdaddr, bdaddr); |
Marcel Holtmann | b9ee0a7 | 2013-10-17 17:24:13 -0700 | [diff] [blame] | 3574 | entry->bdaddr_type = type; |
Antti Julku | b2a66aa | 2011-06-15 12:01:14 +0300 | [diff] [blame] | 3575 | |
Johan Hedberg | dcc36c1 | 2014-07-09 12:59:13 +0300 | [diff] [blame] | 3576 | list_add(&entry->list, list); |
Marcel Holtmann | d2ab0ac | 2014-02-27 20:37:30 -0800 | [diff] [blame] | 3577 | |
| 3578 | return 0; |
| 3579 | } |
| 3580 | |
Johan Hedberg | dcc36c1 | 2014-07-09 12:59:13 +0300 | [diff] [blame] | 3581 | int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type) |
Marcel Holtmann | d2ab0ac | 2014-02-27 20:37:30 -0800 | [diff] [blame] | 3582 | { |
| 3583 | struct bdaddr_list *entry; |
| 3584 | |
Johan Hedberg | 35f7498 | 2014-02-18 17:14:32 +0200 | [diff] [blame] | 3585 | if (!bacmp(bdaddr, BDADDR_ANY)) { |
Johan Hedberg | dcc36c1 | 2014-07-09 12:59:13 +0300 | [diff] [blame] | 3586 | hci_bdaddr_list_clear(list); |
Johan Hedberg | 35f7498 | 2014-02-18 17:14:32 +0200 | [diff] [blame] | 3587 | return 0; |
| 3588 | } |
Marcel Holtmann | d2ab0ac | 2014-02-27 20:37:30 -0800 | [diff] [blame] | 3589 | |
Johan Hedberg | dcc36c1 | 2014-07-09 12:59:13 +0300 | [diff] [blame] | 3590 | entry = hci_bdaddr_list_lookup(list, bdaddr, type); |
Marcel Holtmann | d2ab0ac | 2014-02-27 20:37:30 -0800 | [diff] [blame] | 3591 | if (!entry) |
| 3592 | return -ENOENT; |
| 3593 | |
| 3594 | list_del(&entry->list); |
| 3595 | kfree(entry); |
| 3596 | |
| 3597 | return 0; |
| 3598 | } |
| 3599 | |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3600 | /* This function requires the caller holds hdev->lock */ |
| 3601 | struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, |
| 3602 | bdaddr_t *addr, u8 addr_type) |
| 3603 | { |
| 3604 | struct hci_conn_params *params; |
| 3605 | |
Johan Hedberg | 738f618 | 2014-07-03 19:33:51 +0300 | [diff] [blame] | 3606 | /* The conn params list only contains identity addresses */ |
| 3607 | if (!hci_is_identity_address(addr, addr_type)) |
| 3608 | return NULL; |
| 3609 | |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3610 | list_for_each_entry(params, &hdev->le_conn_params, list) { |
| 3611 | if (bacmp(¶ms->addr, addr) == 0 && |
| 3612 | params->addr_type == addr_type) { |
| 3613 | return params; |
| 3614 | } |
| 3615 | } |
| 3616 | |
| 3617 | return NULL; |
| 3618 | } |
| 3619 | |
Andre Guedes | cef952c | 2014-02-26 20:21:49 -0300 | [diff] [blame] | 3620 | static bool is_connected(struct hci_dev *hdev, bdaddr_t *addr, u8 type) |
| 3621 | { |
| 3622 | struct hci_conn *conn; |
| 3623 | |
| 3624 | conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, addr); |
| 3625 | if (!conn) |
| 3626 | return false; |
| 3627 | |
| 3628 | if (conn->dst_type != type) |
| 3629 | return false; |
| 3630 | |
| 3631 | if (conn->state != BT_CONNECTED) |
| 3632 | return false; |
| 3633 | |
| 3634 | return true; |
| 3635 | } |
| 3636 | |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3637 | /* This function requires the caller holds hdev->lock */ |
Johan Hedberg | 501f882 | 2014-07-04 12:37:26 +0300 | [diff] [blame] | 3638 | struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, |
| 3639 | bdaddr_t *addr, u8 addr_type) |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3640 | { |
Johan Hedberg | 912b42e | 2014-07-03 19:33:49 +0300 | [diff] [blame] | 3641 | struct hci_conn_params *param; |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3642 | |
Johan Hedberg | 738f618 | 2014-07-03 19:33:51 +0300 | [diff] [blame] | 3643 | /* The list only contains identity addresses */ |
| 3644 | if (!hci_is_identity_address(addr, addr_type)) |
| 3645 | return NULL; |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3646 | |
Johan Hedberg | 501f882 | 2014-07-04 12:37:26 +0300 | [diff] [blame] | 3647 | list_for_each_entry(param, list, action) { |
Johan Hedberg | 912b42e | 2014-07-03 19:33:49 +0300 | [diff] [blame] | 3648 | if (bacmp(¶m->addr, addr) == 0 && |
| 3649 | param->addr_type == addr_type) |
| 3650 | return param; |
Marcel Holtmann | 4b10966 | 2014-06-29 13:41:49 +0200 | [diff] [blame] | 3651 | } |
| 3652 | |
| 3653 | return NULL; |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3654 | } |
| 3655 | |
| 3656 | /* This function requires the caller holds hdev->lock */ |
Marcel Holtmann | 51d167c | 2014-07-01 12:11:04 +0200 | [diff] [blame] | 3657 | struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, |
| 3658 | bdaddr_t *addr, u8 addr_type) |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3659 | { |
| 3660 | struct hci_conn_params *params; |
| 3661 | |
Johan Hedberg | c46245b | 2014-07-02 17:37:33 +0300 | [diff] [blame] | 3662 | if (!hci_is_identity_address(addr, addr_type)) |
Marcel Holtmann | 51d167c | 2014-07-01 12:11:04 +0200 | [diff] [blame] | 3663 | return NULL; |
Andre Guedes | a9b0a04 | 2014-02-26 20:21:52 -0300 | [diff] [blame] | 3664 | |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3665 | params = hci_conn_params_lookup(hdev, addr, addr_type); |
Andre Guedes | cef952c | 2014-02-26 20:21:49 -0300 | [diff] [blame] | 3666 | if (params) |
Marcel Holtmann | 51d167c | 2014-07-01 12:11:04 +0200 | [diff] [blame] | 3667 | return params; |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3668 | |
| 3669 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
| 3670 | if (!params) { |
| 3671 | BT_ERR("Out of memory"); |
Marcel Holtmann | 51d167c | 2014-07-01 12:11:04 +0200 | [diff] [blame] | 3672 | return NULL; |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3673 | } |
| 3674 | |
| 3675 | bacpy(¶ms->addr, addr); |
| 3676 | params->addr_type = addr_type; |
Andre Guedes | cef952c | 2014-02-26 20:21:49 -0300 | [diff] [blame] | 3677 | |
| 3678 | list_add(¶ms->list, &hdev->le_conn_params); |
Johan Hedberg | 93450c7 | 2014-07-04 12:37:17 +0300 | [diff] [blame] | 3679 | INIT_LIST_HEAD(¶ms->action); |
Andre Guedes | cef952c | 2014-02-26 20:21:49 -0300 | [diff] [blame] | 3680 | |
Marcel Holtmann | bf5b3c8 | 2014-06-30 12:34:39 +0200 | [diff] [blame] | 3681 | params->conn_min_interval = hdev->le_conn_min_interval; |
| 3682 | params->conn_max_interval = hdev->le_conn_max_interval; |
| 3683 | params->conn_latency = hdev->le_conn_latency; |
| 3684 | params->supervision_timeout = hdev->le_supv_timeout; |
| 3685 | params->auto_connect = HCI_AUTO_CONN_DISABLED; |
| 3686 | |
| 3687 | BT_DBG("addr %pMR (type %u)", addr, addr_type); |
| 3688 | |
Marcel Holtmann | 51d167c | 2014-07-01 12:11:04 +0200 | [diff] [blame] | 3689 | return params; |
Marcel Holtmann | bf5b3c8 | 2014-06-30 12:34:39 +0200 | [diff] [blame] | 3690 | } |
| 3691 | |
| 3692 | /* This function requires the caller holds hdev->lock */ |
| 3693 | int hci_conn_params_set(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type, |
Marcel Holtmann | d06b50c | 2014-07-01 12:11:06 +0200 | [diff] [blame] | 3694 | u8 auto_connect) |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3695 | { |
| 3696 | struct hci_conn_params *params; |
| 3697 | |
Marcel Holtmann | 8c87aae | 2014-07-01 12:11:05 +0200 | [diff] [blame] | 3698 | params = hci_conn_params_add(hdev, addr, addr_type); |
| 3699 | if (!params) |
| 3700 | return -EIO; |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3701 | |
Johan Hedberg | 42ce26d | 2014-07-04 12:37:20 +0300 | [diff] [blame] | 3702 | if (params->auto_connect == auto_connect) |
| 3703 | return 0; |
| 3704 | |
Johan Hedberg | 95305ba | 2014-07-04 12:37:21 +0300 | [diff] [blame] | 3705 | list_del_init(¶ms->action); |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3706 | |
Andre Guedes | cef952c | 2014-02-26 20:21:49 -0300 | [diff] [blame] | 3707 | switch (auto_connect) { |
| 3708 | case HCI_AUTO_CONN_DISABLED: |
| 3709 | case HCI_AUTO_CONN_LINK_LOSS: |
Johan Hedberg | 95305ba | 2014-07-04 12:37:21 +0300 | [diff] [blame] | 3710 | hci_update_background_scan(hdev); |
Andre Guedes | cef952c | 2014-02-26 20:21:49 -0300 | [diff] [blame] | 3711 | break; |
Johan Hedberg | 851efca | 2014-07-02 22:42:00 +0300 | [diff] [blame] | 3712 | case HCI_AUTO_CONN_REPORT: |
Johan Hedberg | 95305ba | 2014-07-04 12:37:21 +0300 | [diff] [blame] | 3713 | list_add(¶ms->action, &hdev->pend_le_reports); |
| 3714 | hci_update_background_scan(hdev); |
Johan Hedberg | 851efca | 2014-07-02 22:42:00 +0300 | [diff] [blame] | 3715 | break; |
Marcel Holtmann | 4b9e7e7 | 2014-07-23 21:55:23 +0200 | [diff] [blame] | 3716 | case HCI_AUTO_CONN_DIRECT: |
Andre Guedes | cef952c | 2014-02-26 20:21:49 -0300 | [diff] [blame] | 3717 | case HCI_AUTO_CONN_ALWAYS: |
Johan Hedberg | 95305ba | 2014-07-04 12:37:21 +0300 | [diff] [blame] | 3718 | if (!is_connected(hdev, addr, addr_type)) { |
| 3719 | list_add(¶ms->action, &hdev->pend_le_conns); |
| 3720 | hci_update_background_scan(hdev); |
| 3721 | } |
Andre Guedes | cef952c | 2014-02-26 20:21:49 -0300 | [diff] [blame] | 3722 | break; |
| 3723 | } |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3724 | |
Johan Hedberg | 851efca | 2014-07-02 22:42:00 +0300 | [diff] [blame] | 3725 | params->auto_connect = auto_connect; |
| 3726 | |
Marcel Holtmann | d06b50c | 2014-07-01 12:11:06 +0200 | [diff] [blame] | 3727 | BT_DBG("addr %pMR (type %u) auto_connect %u", addr, addr_type, |
| 3728 | auto_connect); |
Andre Guedes | a9b0a04 | 2014-02-26 20:21:52 -0300 | [diff] [blame] | 3729 | |
| 3730 | return 0; |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3731 | } |
| 3732 | |
Johan Hedberg | f6c6324 | 2014-08-15 21:06:59 +0300 | [diff] [blame] | 3733 | static void hci_conn_params_free(struct hci_conn_params *params) |
| 3734 | { |
| 3735 | if (params->conn) { |
| 3736 | hci_conn_drop(params->conn); |
| 3737 | hci_conn_put(params->conn); |
| 3738 | } |
| 3739 | |
| 3740 | list_del(¶ms->action); |
| 3741 | list_del(¶ms->list); |
| 3742 | kfree(params); |
| 3743 | } |
| 3744 | |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3745 | /* This function requires the caller holds hdev->lock */ |
| 3746 | void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type) |
| 3747 | { |
| 3748 | struct hci_conn_params *params; |
| 3749 | |
| 3750 | params = hci_conn_params_lookup(hdev, addr, addr_type); |
| 3751 | if (!params) |
| 3752 | return; |
| 3753 | |
Johan Hedberg | f6c6324 | 2014-08-15 21:06:59 +0300 | [diff] [blame] | 3754 | hci_conn_params_free(params); |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3755 | |
Johan Hedberg | 95305ba | 2014-07-04 12:37:21 +0300 | [diff] [blame] | 3756 | hci_update_background_scan(hdev); |
| 3757 | |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3758 | BT_DBG("addr %pMR (type %u)", addr, addr_type); |
| 3759 | } |
| 3760 | |
| 3761 | /* This function requires the caller holds hdev->lock */ |
Johan Hedberg | 55af49a | 2014-07-02 17:37:26 +0300 | [diff] [blame] | 3762 | void hci_conn_params_clear_disabled(struct hci_dev *hdev) |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3763 | { |
| 3764 | struct hci_conn_params *params, *tmp; |
| 3765 | |
| 3766 | list_for_each_entry_safe(params, tmp, &hdev->le_conn_params, list) { |
Johan Hedberg | 55af49a | 2014-07-02 17:37:26 +0300 | [diff] [blame] | 3767 | if (params->auto_connect != HCI_AUTO_CONN_DISABLED) |
| 3768 | continue; |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3769 | list_del(¶ms->list); |
| 3770 | kfree(params); |
| 3771 | } |
| 3772 | |
Johan Hedberg | 55af49a | 2014-07-02 17:37:26 +0300 | [diff] [blame] | 3773 | BT_DBG("All LE disabled connection parameters were removed"); |
| 3774 | } |
| 3775 | |
| 3776 | /* This function requires the caller holds hdev->lock */ |
Johan Hedberg | 373110c | 2014-07-02 17:37:25 +0300 | [diff] [blame] | 3777 | void hci_conn_params_clear_all(struct hci_dev *hdev) |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3778 | { |
| 3779 | struct hci_conn_params *params, *tmp; |
| 3780 | |
Johan Hedberg | f6c6324 | 2014-08-15 21:06:59 +0300 | [diff] [blame] | 3781 | list_for_each_entry_safe(params, tmp, &hdev->le_conn_params, list) |
| 3782 | hci_conn_params_free(params); |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3783 | |
Johan Hedberg | a2f41a8 | 2014-07-04 12:37:19 +0300 | [diff] [blame] | 3784 | hci_update_background_scan(hdev); |
Marcel Holtmann | 1089b67 | 2014-06-29 13:41:50 +0200 | [diff] [blame] | 3785 | |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 3786 | BT_DBG("All LE connection parameters were removed"); |
| 3787 | } |
| 3788 | |
Andre Guedes | 4c87eaa | 2013-04-30 15:29:32 -0300 | [diff] [blame] | 3789 | static void inquiry_complete(struct hci_dev *hdev, u8 status) |
Andre Guedes | 7ba8b4b | 2012-02-03 17:47:59 -0300 | [diff] [blame] | 3790 | { |
Andre Guedes | 4c87eaa | 2013-04-30 15:29:32 -0300 | [diff] [blame] | 3791 | if (status) { |
| 3792 | BT_ERR("Failed to start inquiry: status %d", status); |
Andre Guedes | 7ba8b4b | 2012-02-03 17:47:59 -0300 | [diff] [blame] | 3793 | |
Andre Guedes | 4c87eaa | 2013-04-30 15:29:32 -0300 | [diff] [blame] | 3794 | hci_dev_lock(hdev); |
| 3795 | hci_discovery_set_state(hdev, DISCOVERY_STOPPED); |
| 3796 | hci_dev_unlock(hdev); |
| 3797 | return; |
| 3798 | } |
Andre Guedes | 7ba8b4b | 2012-02-03 17:47:59 -0300 | [diff] [blame] | 3799 | } |
| 3800 | |
Andre Guedes | 4c87eaa | 2013-04-30 15:29:32 -0300 | [diff] [blame] | 3801 | static void le_scan_disable_work_complete(struct hci_dev *hdev, u8 status) |
Andre Guedes | 7ba8b4b | 2012-02-03 17:47:59 -0300 | [diff] [blame] | 3802 | { |
Andre Guedes | 4c87eaa | 2013-04-30 15:29:32 -0300 | [diff] [blame] | 3803 | /* General inquiry access code (GIAC) */ |
| 3804 | u8 lap[3] = { 0x33, 0x8b, 0x9e }; |
| 3805 | struct hci_request req; |
| 3806 | struct hci_cp_inquiry cp; |
Andre Guedes | 7ba8b4b | 2012-02-03 17:47:59 -0300 | [diff] [blame] | 3807 | int err; |
| 3808 | |
Andre Guedes | 4c87eaa | 2013-04-30 15:29:32 -0300 | [diff] [blame] | 3809 | if (status) { |
| 3810 | BT_ERR("Failed to disable LE scanning: status %d", status); |
| 3811 | return; |
Andre Guedes | 7dbfac1 | 2012-03-15 16:52:07 -0300 | [diff] [blame] | 3812 | } |
| 3813 | |
Andre Guedes | 4c87eaa | 2013-04-30 15:29:32 -0300 | [diff] [blame] | 3814 | switch (hdev->discovery.type) { |
| 3815 | case DISCOV_TYPE_LE: |
| 3816 | hci_dev_lock(hdev); |
| 3817 | hci_discovery_set_state(hdev, DISCOVERY_STOPPED); |
| 3818 | hci_dev_unlock(hdev); |
| 3819 | break; |
| 3820 | |
| 3821 | case DISCOV_TYPE_INTERLEAVED: |
| 3822 | hci_req_init(&req, hdev); |
| 3823 | |
| 3824 | memset(&cp, 0, sizeof(cp)); |
| 3825 | memcpy(&cp.lap, lap, sizeof(cp.lap)); |
| 3826 | cp.length = DISCOV_INTERLEAVED_INQUIRY_LEN; |
| 3827 | hci_req_add(&req, HCI_OP_INQUIRY, sizeof(cp), &cp); |
| 3828 | |
| 3829 | hci_dev_lock(hdev); |
| 3830 | |
| 3831 | hci_inquiry_cache_flush(hdev); |
| 3832 | |
| 3833 | err = hci_req_run(&req, inquiry_complete); |
| 3834 | if (err) { |
| 3835 | BT_ERR("Inquiry request failed: err %d", err); |
| 3836 | hci_discovery_set_state(hdev, DISCOVERY_STOPPED); |
| 3837 | } |
| 3838 | |
| 3839 | hci_dev_unlock(hdev); |
| 3840 | break; |
| 3841 | } |
Andre Guedes | 7dbfac1 | 2012-03-15 16:52:07 -0300 | [diff] [blame] | 3842 | } |
| 3843 | |
Andre Guedes | 7ba8b4b | 2012-02-03 17:47:59 -0300 | [diff] [blame] | 3844 | static void le_scan_disable_work(struct work_struct *work) |
| 3845 | { |
| 3846 | struct hci_dev *hdev = container_of(work, struct hci_dev, |
Gustavo F. Padovan | 0412468 | 2012-03-08 01:25:00 -0300 | [diff] [blame] | 3847 | le_scan_disable.work); |
Andre Guedes | 4c87eaa | 2013-04-30 15:29:32 -0300 | [diff] [blame] | 3848 | struct hci_request req; |
| 3849 | int err; |
Andre Guedes | 7ba8b4b | 2012-02-03 17:47:59 -0300 | [diff] [blame] | 3850 | |
| 3851 | BT_DBG("%s", hdev->name); |
| 3852 | |
Andre Guedes | 4c87eaa | 2013-04-30 15:29:32 -0300 | [diff] [blame] | 3853 | hci_req_init(&req, hdev); |
Andre Guedes | 7ba8b4b | 2012-02-03 17:47:59 -0300 | [diff] [blame] | 3854 | |
Andre Guedes | b1efcc2 | 2014-02-26 20:21:40 -0300 | [diff] [blame] | 3855 | hci_req_add_le_scan_disable(&req); |
Andre Guedes | 7ba8b4b | 2012-02-03 17:47:59 -0300 | [diff] [blame] | 3856 | |
Andre Guedes | 4c87eaa | 2013-04-30 15:29:32 -0300 | [diff] [blame] | 3857 | err = hci_req_run(&req, le_scan_disable_work_complete); |
| 3858 | if (err) |
| 3859 | BT_ERR("Disable LE scanning request failed: err %d", err); |
Andre Guedes | 28b75a8 | 2012-02-03 17:48:00 -0300 | [diff] [blame] | 3860 | } |
| 3861 | |
Johan Hedberg | 8d97250 | 2014-02-28 12:54:14 +0200 | [diff] [blame] | 3862 | static void set_random_addr(struct hci_request *req, bdaddr_t *rpa) |
| 3863 | { |
| 3864 | struct hci_dev *hdev = req->hdev; |
| 3865 | |
| 3866 | /* If we're advertising or initiating an LE connection we can't |
| 3867 | * go ahead and change the random address at this time. This is |
| 3868 | * because the eventual initiator address used for the |
| 3869 | * subsequently created connection will be undefined (some |
| 3870 | * controllers use the new address and others the one we had |
| 3871 | * when the operation started). |
| 3872 | * |
| 3873 | * In this kind of scenario skip the update and let the random |
| 3874 | * address be updated at the next cycle. |
| 3875 | */ |
Johan Hedberg | 5ce194c | 2014-07-08 15:07:49 +0300 | [diff] [blame] | 3876 | if (test_bit(HCI_LE_ADV, &hdev->dev_flags) || |
Johan Hedberg | 8d97250 | 2014-02-28 12:54:14 +0200 | [diff] [blame] | 3877 | hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT)) { |
| 3878 | BT_DBG("Deferring random address update"); |
Johan Hedberg | 9a783a1 | 2014-09-12 09:31:52 -0700 | [diff] [blame] | 3879 | set_bit(HCI_RPA_EXPIRED, &hdev->dev_flags); |
Johan Hedberg | 8d97250 | 2014-02-28 12:54:14 +0200 | [diff] [blame] | 3880 | return; |
| 3881 | } |
| 3882 | |
| 3883 | hci_req_add(req, HCI_OP_LE_SET_RANDOM_ADDR, 6, rpa); |
| 3884 | } |
| 3885 | |
Marcel Holtmann | 94b1fc9 | 2014-02-23 20:25:54 -0800 | [diff] [blame] | 3886 | int hci_update_random_address(struct hci_request *req, bool require_privacy, |
| 3887 | u8 *own_addr_type) |
Johan Hedberg | ebd3a74 | 2014-02-23 19:42:21 +0200 | [diff] [blame] | 3888 | { |
| 3889 | struct hci_dev *hdev = req->hdev; |
| 3890 | int err; |
| 3891 | |
| 3892 | /* If privacy is enabled use a resolvable private address. If |
Marcel Holtmann | 2b5224d | 2014-02-23 20:39:22 -0800 | [diff] [blame] | 3893 | * current RPA has expired or there is something else than |
| 3894 | * the current RPA in use, then generate a new one. |
Johan Hedberg | ebd3a74 | 2014-02-23 19:42:21 +0200 | [diff] [blame] | 3895 | */ |
| 3896 | if (test_bit(HCI_PRIVACY, &hdev->dev_flags)) { |
Johan Hedberg | ebd3a74 | 2014-02-23 19:42:21 +0200 | [diff] [blame] | 3897 | int to; |
| 3898 | |
| 3899 | *own_addr_type = ADDR_LE_DEV_RANDOM; |
| 3900 | |
| 3901 | if (!test_and_clear_bit(HCI_RPA_EXPIRED, &hdev->dev_flags) && |
Marcel Holtmann | 2b5224d | 2014-02-23 20:39:22 -0800 | [diff] [blame] | 3902 | !bacmp(&hdev->random_addr, &hdev->rpa)) |
Johan Hedberg | ebd3a74 | 2014-02-23 19:42:21 +0200 | [diff] [blame] | 3903 | return 0; |
| 3904 | |
Johan Hedberg | defce9e | 2014-08-08 09:37:17 +0300 | [diff] [blame] | 3905 | err = smp_generate_rpa(hdev, hdev->irk, &hdev->rpa); |
Johan Hedberg | ebd3a74 | 2014-02-23 19:42:21 +0200 | [diff] [blame] | 3906 | if (err < 0) { |
| 3907 | BT_ERR("%s failed to generate new RPA", hdev->name); |
| 3908 | return err; |
| 3909 | } |
| 3910 | |
Johan Hedberg | 8d97250 | 2014-02-28 12:54:14 +0200 | [diff] [blame] | 3911 | set_random_addr(req, &hdev->rpa); |
Johan Hedberg | ebd3a74 | 2014-02-23 19:42:21 +0200 | [diff] [blame] | 3912 | |
| 3913 | to = msecs_to_jiffies(hdev->rpa_timeout * 1000); |
| 3914 | queue_delayed_work(hdev->workqueue, &hdev->rpa_expired, to); |
| 3915 | |
| 3916 | return 0; |
| 3917 | } |
| 3918 | |
Marcel Holtmann | 94b1fc9 | 2014-02-23 20:25:54 -0800 | [diff] [blame] | 3919 | /* In case of required privacy without resolvable private address, |
| 3920 | * use an unresolvable private address. This is useful for active |
| 3921 | * scanning and non-connectable advertising. |
| 3922 | */ |
| 3923 | if (require_privacy) { |
| 3924 | bdaddr_t urpa; |
| 3925 | |
| 3926 | get_random_bytes(&urpa, 6); |
| 3927 | urpa.b[5] &= 0x3f; /* Clear two most significant bits */ |
| 3928 | |
| 3929 | *own_addr_type = ADDR_LE_DEV_RANDOM; |
Johan Hedberg | 8d97250 | 2014-02-28 12:54:14 +0200 | [diff] [blame] | 3930 | set_random_addr(req, &urpa); |
Marcel Holtmann | 94b1fc9 | 2014-02-23 20:25:54 -0800 | [diff] [blame] | 3931 | return 0; |
| 3932 | } |
| 3933 | |
Johan Hedberg | ebd3a74 | 2014-02-23 19:42:21 +0200 | [diff] [blame] | 3934 | /* If forcing static address is in use or there is no public |
| 3935 | * address use the static address as random address (but skip |
| 3936 | * the HCI command if the current random address is already the |
| 3937 | * static one. |
| 3938 | */ |
Marcel Holtmann | 111902f | 2014-06-21 04:53:17 +0200 | [diff] [blame] | 3939 | if (test_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags) || |
Johan Hedberg | ebd3a74 | 2014-02-23 19:42:21 +0200 | [diff] [blame] | 3940 | !bacmp(&hdev->bdaddr, BDADDR_ANY)) { |
| 3941 | *own_addr_type = ADDR_LE_DEV_RANDOM; |
| 3942 | if (bacmp(&hdev->static_addr, &hdev->random_addr)) |
| 3943 | hci_req_add(req, HCI_OP_LE_SET_RANDOM_ADDR, 6, |
| 3944 | &hdev->static_addr); |
| 3945 | return 0; |
| 3946 | } |
| 3947 | |
| 3948 | /* Neither privacy nor static address is being used so use a |
| 3949 | * public address. |
| 3950 | */ |
| 3951 | *own_addr_type = ADDR_LE_DEV_PUBLIC; |
| 3952 | |
| 3953 | return 0; |
| 3954 | } |
| 3955 | |
Johan Hedberg | a1f4c31 | 2014-02-27 14:05:41 +0200 | [diff] [blame] | 3956 | /* Copy the Identity Address of the controller. |
| 3957 | * |
| 3958 | * If the controller has a public BD_ADDR, then by default use that one. |
| 3959 | * If this is a LE only controller without a public address, default to |
| 3960 | * the static random address. |
| 3961 | * |
| 3962 | * For debugging purposes it is possible to force controllers with a |
| 3963 | * public address to use the static random address instead. |
| 3964 | */ |
| 3965 | void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| 3966 | u8 *bdaddr_type) |
| 3967 | { |
Marcel Holtmann | 111902f | 2014-06-21 04:53:17 +0200 | [diff] [blame] | 3968 | if (test_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags) || |
Johan Hedberg | a1f4c31 | 2014-02-27 14:05:41 +0200 | [diff] [blame] | 3969 | !bacmp(&hdev->bdaddr, BDADDR_ANY)) { |
| 3970 | bacpy(bdaddr, &hdev->static_addr); |
| 3971 | *bdaddr_type = ADDR_LE_DEV_RANDOM; |
| 3972 | } else { |
| 3973 | bacpy(bdaddr, &hdev->bdaddr); |
| 3974 | *bdaddr_type = ADDR_LE_DEV_PUBLIC; |
| 3975 | } |
| 3976 | } |
| 3977 | |
David Herrmann | 9be0dab | 2012-04-22 14:39:57 +0200 | [diff] [blame] | 3978 | /* Alloc HCI device */ |
| 3979 | struct hci_dev *hci_alloc_dev(void) |
| 3980 | { |
| 3981 | struct hci_dev *hdev; |
| 3982 | |
Johan Hedberg | 27f70f3 | 2014-07-21 10:50:06 +0300 | [diff] [blame] | 3983 | hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); |
David Herrmann | 9be0dab | 2012-04-22 14:39:57 +0200 | [diff] [blame] | 3984 | if (!hdev) |
| 3985 | return NULL; |
| 3986 | |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 3987 | hdev->pkt_type = (HCI_DM1 | HCI_DH1 | HCI_HV1); |
| 3988 | hdev->esco_type = (ESCO_HV1); |
| 3989 | hdev->link_mode = (HCI_LM_ACCEPT); |
Marcel Holtmann | b4cb9fb | 2013-10-14 13:56:16 -0700 | [diff] [blame] | 3990 | hdev->num_iac = 0x01; /* One IAC support is mandatory */ |
| 3991 | hdev->io_capability = 0x03; /* No Input No Output */ |
Marcel Holtmann | 96c2103 | 2014-07-02 11:30:51 +0200 | [diff] [blame] | 3992 | hdev->manufacturer = 0xffff; /* Default to internal use */ |
Johan Hedberg | bbaf444 | 2012-11-08 01:22:59 +0100 | [diff] [blame] | 3993 | hdev->inq_tx_power = HCI_TX_POWER_INVALID; |
| 3994 | hdev->adv_tx_power = HCI_TX_POWER_INVALID; |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 3995 | |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 3996 | hdev->sniff_max_interval = 800; |
| 3997 | hdev->sniff_min_interval = 80; |
| 3998 | |
Marcel Holtmann | 3f959d4 | 2014-02-20 11:55:56 -0800 | [diff] [blame] | 3999 | hdev->le_adv_channel_map = 0x07; |
Georg Lukas | 628531c | 2014-07-26 13:59:57 +0200 | [diff] [blame] | 4000 | hdev->le_adv_min_interval = 0x0800; |
| 4001 | hdev->le_adv_max_interval = 0x0800; |
Marcel Holtmann | bef6473 | 2013-10-11 08:23:19 -0700 | [diff] [blame] | 4002 | hdev->le_scan_interval = 0x0060; |
| 4003 | hdev->le_scan_window = 0x0030; |
Marcel Holtmann | 4e70c7e | 2013-10-19 07:09:13 -0700 | [diff] [blame] | 4004 | hdev->le_conn_min_interval = 0x0028; |
| 4005 | hdev->le_conn_max_interval = 0x0038; |
Marcel Holtmann | 04fb7d9 | 2014-06-30 12:34:36 +0200 | [diff] [blame] | 4006 | hdev->le_conn_latency = 0x0000; |
| 4007 | hdev->le_supv_timeout = 0x002a; |
Marcel Holtmann | bef6473 | 2013-10-11 08:23:19 -0700 | [diff] [blame] | 4008 | |
Johan Hedberg | d6bfd59 | 2014-02-23 19:42:20 +0200 | [diff] [blame] | 4009 | hdev->rpa_timeout = HCI_DEFAULT_RPA_TIMEOUT; |
Lukasz Rymanowski | b9a7a61 | 2014-03-27 20:55:20 +0100 | [diff] [blame] | 4010 | hdev->discov_interleaved_timeout = DISCOV_INTERLEAVED_TIMEOUT; |
Andrzej Kaczmarek | 31ad169 | 2014-05-14 13:43:02 +0200 | [diff] [blame] | 4011 | hdev->conn_info_min_age = DEFAULT_CONN_INFO_MIN_AGE; |
| 4012 | hdev->conn_info_max_age = DEFAULT_CONN_INFO_MAX_AGE; |
Johan Hedberg | d6bfd59 | 2014-02-23 19:42:20 +0200 | [diff] [blame] | 4013 | |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 4014 | mutex_init(&hdev->lock); |
| 4015 | mutex_init(&hdev->req_lock); |
| 4016 | |
| 4017 | INIT_LIST_HEAD(&hdev->mgmt_pending); |
| 4018 | INIT_LIST_HEAD(&hdev->blacklist); |
Johan Hedberg | 6659358 | 2014-07-09 12:59:14 +0300 | [diff] [blame] | 4019 | INIT_LIST_HEAD(&hdev->whitelist); |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 4020 | INIT_LIST_HEAD(&hdev->uuids); |
| 4021 | INIT_LIST_HEAD(&hdev->link_keys); |
| 4022 | INIT_LIST_HEAD(&hdev->long_term_keys); |
Johan Hedberg | 970c4e4 | 2014-02-18 10:19:33 +0200 | [diff] [blame] | 4023 | INIT_LIST_HEAD(&hdev->identity_resolving_keys); |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 4024 | INIT_LIST_HEAD(&hdev->remote_oob_data); |
Marcel Holtmann | d2ab0ac | 2014-02-27 20:37:30 -0800 | [diff] [blame] | 4025 | INIT_LIST_HEAD(&hdev->le_white_list); |
Andre Guedes | 15819a7 | 2014-02-03 13:56:18 -0300 | [diff] [blame] | 4026 | INIT_LIST_HEAD(&hdev->le_conn_params); |
Andre Guedes | 77a77a3 | 2014-02-26 20:21:46 -0300 | [diff] [blame] | 4027 | INIT_LIST_HEAD(&hdev->pend_le_conns); |
Johan Hedberg | 66f8455 | 2014-07-04 12:37:18 +0300 | [diff] [blame] | 4028 | INIT_LIST_HEAD(&hdev->pend_le_reports); |
Andrei Emeltchenko | 6b536b5 | 2012-08-31 16:39:28 +0300 | [diff] [blame] | 4029 | INIT_LIST_HEAD(&hdev->conn_hash.list); |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 4030 | |
| 4031 | INIT_WORK(&hdev->rx_work, hci_rx_work); |
| 4032 | INIT_WORK(&hdev->cmd_work, hci_cmd_work); |
| 4033 | INIT_WORK(&hdev->tx_work, hci_tx_work); |
| 4034 | INIT_WORK(&hdev->power_on, hci_power_on); |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 4035 | |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 4036 | INIT_DELAYED_WORK(&hdev->power_off, hci_power_off); |
| 4037 | INIT_DELAYED_WORK(&hdev->discov_off, hci_discov_off); |
| 4038 | INIT_DELAYED_WORK(&hdev->le_scan_disable, le_scan_disable_work); |
| 4039 | |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 4040 | skb_queue_head_init(&hdev->rx_q); |
| 4041 | skb_queue_head_init(&hdev->cmd_q); |
| 4042 | skb_queue_head_init(&hdev->raw_q); |
| 4043 | |
| 4044 | init_waitqueue_head(&hdev->req_wait_q); |
| 4045 | |
Marcel Holtmann | 65cc2b4 | 2014-06-16 12:30:56 +0200 | [diff] [blame] | 4046 | INIT_DELAYED_WORK(&hdev->cmd_timer, hci_cmd_timeout); |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 4047 | |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 4048 | hci_init_sysfs(hdev); |
| 4049 | discovery_init(hdev); |
David Herrmann | 9be0dab | 2012-04-22 14:39:57 +0200 | [diff] [blame] | 4050 | |
| 4051 | return hdev; |
| 4052 | } |
| 4053 | EXPORT_SYMBOL(hci_alloc_dev); |
| 4054 | |
| 4055 | /* Free HCI device */ |
| 4056 | void hci_free_dev(struct hci_dev *hdev) |
| 4057 | { |
David Herrmann | 9be0dab | 2012-04-22 14:39:57 +0200 | [diff] [blame] | 4058 | /* will free via device release */ |
| 4059 | put_device(&hdev->dev); |
| 4060 | } |
| 4061 | EXPORT_SYMBOL(hci_free_dev); |
| 4062 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4063 | /* Register HCI device */ |
| 4064 | int hci_register_dev(struct hci_dev *hdev) |
| 4065 | { |
David Herrmann | b1b813d | 2012-04-22 14:39:58 +0200 | [diff] [blame] | 4066 | int id, error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4067 | |
Marcel Holtmann | 74292d5 | 2014-07-06 15:50:27 +0200 | [diff] [blame] | 4068 | if (!hdev->open || !hdev->close || !hdev->send) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4069 | return -EINVAL; |
| 4070 | |
Mat Martineau | 08add51 | 2011-11-02 16:18:36 -0700 | [diff] [blame] | 4071 | /* Do not allow HCI_AMP devices to register at index 0, |
| 4072 | * so the index can be used as the AMP controller ID. |
| 4073 | */ |
Sasha Levin | 3df92b3 | 2012-05-27 22:36:56 +0200 | [diff] [blame] | 4074 | switch (hdev->dev_type) { |
| 4075 | case HCI_BREDR: |
| 4076 | id = ida_simple_get(&hci_index_ida, 0, 0, GFP_KERNEL); |
| 4077 | break; |
| 4078 | case HCI_AMP: |
| 4079 | id = ida_simple_get(&hci_index_ida, 1, 0, GFP_KERNEL); |
| 4080 | break; |
| 4081 | default: |
| 4082 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4083 | } |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 4084 | |
Sasha Levin | 3df92b3 | 2012-05-27 22:36:56 +0200 | [diff] [blame] | 4085 | if (id < 0) |
| 4086 | return id; |
| 4087 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4088 | sprintf(hdev->name, "hci%d", id); |
| 4089 | hdev->id = id; |
Andrei Emeltchenko | 2d8b3a1 | 2012-04-16 16:32:04 +0300 | [diff] [blame] | 4090 | |
| 4091 | BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); |
| 4092 | |
Kees Cook | d853754 | 2013-07-03 15:04:57 -0700 | [diff] [blame] | 4093 | hdev->workqueue = alloc_workqueue("%s", WQ_HIGHPRI | WQ_UNBOUND | |
| 4094 | WQ_MEM_RECLAIM, 1, hdev->name); |
David Herrmann | 33ca954 | 2011-10-08 14:58:49 +0200 | [diff] [blame] | 4095 | if (!hdev->workqueue) { |
| 4096 | error = -ENOMEM; |
| 4097 | goto err; |
| 4098 | } |
Marcel Holtmann | f48fd9c | 2010-03-20 15:20:04 +0100 | [diff] [blame] | 4099 | |
Kees Cook | d853754 | 2013-07-03 15:04:57 -0700 | [diff] [blame] | 4100 | hdev->req_workqueue = alloc_workqueue("%s", WQ_HIGHPRI | WQ_UNBOUND | |
| 4101 | WQ_MEM_RECLAIM, 1, hdev->name); |
Johan Hedberg | 6ead1bb | 2013-01-14 22:33:50 +0200 | [diff] [blame] | 4102 | if (!hdev->req_workqueue) { |
| 4103 | destroy_workqueue(hdev->workqueue); |
| 4104 | error = -ENOMEM; |
| 4105 | goto err; |
| 4106 | } |
| 4107 | |
Marcel Holtmann | 0153e2e | 2013-10-17 17:24:17 -0700 | [diff] [blame] | 4108 | if (!IS_ERR_OR_NULL(bt_debugfs)) |
| 4109 | hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs); |
| 4110 | |
Marcel Holtmann | bdc3e0f | 2013-10-17 17:24:19 -0700 | [diff] [blame] | 4111 | dev_set_name(&hdev->dev, "%s", hdev->name); |
| 4112 | |
| 4113 | error = device_add(&hdev->dev); |
David Herrmann | 33ca954 | 2011-10-08 14:58:49 +0200 | [diff] [blame] | 4114 | if (error < 0) |
Johan Hedberg | 5450691 | 2014-08-08 09:32:51 +0300 | [diff] [blame] | 4115 | goto err_wqueue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4116 | |
Marcel Holtmann | 611b30f | 2009-06-08 14:41:38 +0200 | [diff] [blame] | 4117 | hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 4118 | RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops, |
| 4119 | hdev); |
Marcel Holtmann | 611b30f | 2009-06-08 14:41:38 +0200 | [diff] [blame] | 4120 | if (hdev->rfkill) { |
| 4121 | if (rfkill_register(hdev->rfkill) < 0) { |
| 4122 | rfkill_destroy(hdev->rfkill); |
| 4123 | hdev->rfkill = NULL; |
| 4124 | } |
| 4125 | } |
| 4126 | |
Johan Hedberg | 5e13036 | 2013-09-13 08:58:17 +0300 | [diff] [blame] | 4127 | if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) |
| 4128 | set_bit(HCI_RFKILLED, &hdev->dev_flags); |
| 4129 | |
Johan Hedberg | a8b2d5c | 2012-01-08 23:11:15 +0200 | [diff] [blame] | 4130 | set_bit(HCI_SETUP, &hdev->dev_flags); |
Marcel Holtmann | 004b025 | 2013-10-07 00:58:32 -0700 | [diff] [blame] | 4131 | set_bit(HCI_AUTO_OFF, &hdev->dev_flags); |
Andrei Emeltchenko | ce2be9a | 2012-06-29 15:07:00 +0300 | [diff] [blame] | 4132 | |
Marcel Holtmann | 01cd340 | 2013-10-06 01:16:22 -0700 | [diff] [blame] | 4133 | if (hdev->dev_type == HCI_BREDR) { |
Johan Hedberg | 56f8790 | 2013-10-02 13:43:13 +0300 | [diff] [blame] | 4134 | /* Assume BR/EDR support until proven otherwise (such as |
| 4135 | * through reading supported features during init. |
| 4136 | */ |
| 4137 | set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); |
| 4138 | } |
Andrei Emeltchenko | ce2be9a | 2012-06-29 15:07:00 +0300 | [diff] [blame] | 4139 | |
Gustavo Padovan | fcee337 | 2013-07-11 11:34:28 +0100 | [diff] [blame] | 4140 | write_lock(&hci_dev_list_lock); |
| 4141 | list_add(&hdev->list, &hci_dev_list); |
| 4142 | write_unlock(&hci_dev_list_lock); |
| 4143 | |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 4144 | /* Devices that are marked for raw-only usage are unconfigured |
| 4145 | * and should not be included in normal operation. |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 4146 | */ |
| 4147 | if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks)) |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 4148 | set_bit(HCI_UNCONFIGURED, &hdev->dev_flags); |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 4149 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4150 | hci_notify(hdev, HCI_DEV_REG); |
David Herrmann | dc946bd | 2012-01-07 15:47:24 +0100 | [diff] [blame] | 4151 | hci_dev_hold(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4152 | |
Johan Hedberg | 1920257 | 2013-01-14 22:33:51 +0200 | [diff] [blame] | 4153 | queue_work(hdev->req_workqueue, &hdev->power_on); |
Marcel Holtmann | fbe96d6 | 2012-10-30 01:35:40 -0700 | [diff] [blame] | 4154 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4155 | return id; |
Marcel Holtmann | f48fd9c | 2010-03-20 15:20:04 +0100 | [diff] [blame] | 4156 | |
David Herrmann | 33ca954 | 2011-10-08 14:58:49 +0200 | [diff] [blame] | 4157 | err_wqueue: |
| 4158 | destroy_workqueue(hdev->workqueue); |
Johan Hedberg | 6ead1bb | 2013-01-14 22:33:50 +0200 | [diff] [blame] | 4159 | destroy_workqueue(hdev->req_workqueue); |
David Herrmann | 33ca954 | 2011-10-08 14:58:49 +0200 | [diff] [blame] | 4160 | err: |
Sasha Levin | 3df92b3 | 2012-05-27 22:36:56 +0200 | [diff] [blame] | 4161 | ida_simple_remove(&hci_index_ida, hdev->id); |
Marcel Holtmann | f48fd9c | 2010-03-20 15:20:04 +0100 | [diff] [blame] | 4162 | |
David Herrmann | 33ca954 | 2011-10-08 14:58:49 +0200 | [diff] [blame] | 4163 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4164 | } |
| 4165 | EXPORT_SYMBOL(hci_register_dev); |
| 4166 | |
| 4167 | /* Unregister HCI device */ |
David Herrmann | 5973563 | 2011-10-26 10:43:19 +0200 | [diff] [blame] | 4168 | void hci_unregister_dev(struct hci_dev *hdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4169 | { |
Sasha Levin | 3df92b3 | 2012-05-27 22:36:56 +0200 | [diff] [blame] | 4170 | int i, id; |
Marcel Holtmann | ef22201 | 2007-07-11 06:42:04 +0200 | [diff] [blame] | 4171 | |
Marcel Holtmann | c13854c | 2010-02-08 15:27:07 +0100 | [diff] [blame] | 4172 | BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4173 | |
Johan Hovold | 9432496 | 2012-03-15 14:48:41 +0100 | [diff] [blame] | 4174 | set_bit(HCI_UNREGISTER, &hdev->dev_flags); |
| 4175 | |
Sasha Levin | 3df92b3 | 2012-05-27 22:36:56 +0200 | [diff] [blame] | 4176 | id = hdev->id; |
| 4177 | |
Gustavo F. Padovan | f20d09d | 2011-12-22 16:30:27 -0200 | [diff] [blame] | 4178 | write_lock(&hci_dev_list_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4179 | list_del(&hdev->list); |
Gustavo F. Padovan | f20d09d | 2011-12-22 16:30:27 -0200 | [diff] [blame] | 4180 | write_unlock(&hci_dev_list_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4181 | |
| 4182 | hci_dev_do_close(hdev); |
| 4183 | |
Suraj Sumangala | cd4c539 | 2010-07-14 13:02:16 +0530 | [diff] [blame] | 4184 | for (i = 0; i < NUM_REASSEMBLY; i++) |
Marcel Holtmann | ef22201 | 2007-07-11 06:42:04 +0200 | [diff] [blame] | 4185 | kfree_skb(hdev->reassembly[i]); |
| 4186 | |
Gustavo Padovan | b9b5ef1 | 2012-11-21 00:50:21 -0200 | [diff] [blame] | 4187 | cancel_work_sync(&hdev->power_on); |
| 4188 | |
Johan Hedberg | ab81cbf | 2010-12-15 13:53:18 +0200 | [diff] [blame] | 4189 | if (!test_bit(HCI_INIT, &hdev->flags) && |
Marcel Holtmann | d603b76 | 2014-07-06 12:11:14 +0200 | [diff] [blame] | 4190 | !test_bit(HCI_SETUP, &hdev->dev_flags) && |
| 4191 | !test_bit(HCI_CONFIG, &hdev->dev_flags)) { |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 4192 | hci_dev_lock(hdev); |
Johan Hedberg | 744cf19 | 2011-11-08 20:40:14 +0200 | [diff] [blame] | 4193 | mgmt_index_removed(hdev); |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 4194 | hci_dev_unlock(hdev); |
Johan Hedberg | 56e5cb8 | 2011-11-08 20:40:16 +0200 | [diff] [blame] | 4195 | } |
Johan Hedberg | ab81cbf | 2010-12-15 13:53:18 +0200 | [diff] [blame] | 4196 | |
Johan Hedberg | 2e58ef3 | 2011-11-08 20:40:15 +0200 | [diff] [blame] | 4197 | /* mgmt_index_removed should take care of emptying the |
| 4198 | * pending list */ |
| 4199 | BUG_ON(!list_empty(&hdev->mgmt_pending)); |
| 4200 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4201 | hci_notify(hdev, HCI_DEV_UNREG); |
| 4202 | |
Marcel Holtmann | 611b30f | 2009-06-08 14:41:38 +0200 | [diff] [blame] | 4203 | if (hdev->rfkill) { |
| 4204 | rfkill_unregister(hdev->rfkill); |
| 4205 | rfkill_destroy(hdev->rfkill); |
| 4206 | } |
| 4207 | |
Johan Hedberg | 711eafe | 2014-08-08 09:32:52 +0300 | [diff] [blame] | 4208 | smp_unregister(hdev); |
Johan Hedberg | 99780a7 | 2014-02-18 10:40:07 +0200 | [diff] [blame] | 4209 | |
Marcel Holtmann | bdc3e0f | 2013-10-17 17:24:19 -0700 | [diff] [blame] | 4210 | device_del(&hdev->dev); |
Dave Young | 147e2d5 | 2008-03-05 18:45:59 -0800 | [diff] [blame] | 4211 | |
Marcel Holtmann | 0153e2e | 2013-10-17 17:24:17 -0700 | [diff] [blame] | 4212 | debugfs_remove_recursive(hdev->debugfs); |
| 4213 | |
Marcel Holtmann | f48fd9c | 2010-03-20 15:20:04 +0100 | [diff] [blame] | 4214 | destroy_workqueue(hdev->workqueue); |
Johan Hedberg | 6ead1bb | 2013-01-14 22:33:50 +0200 | [diff] [blame] | 4215 | destroy_workqueue(hdev->req_workqueue); |
Marcel Holtmann | f48fd9c | 2010-03-20 15:20:04 +0100 | [diff] [blame] | 4216 | |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 4217 | hci_dev_lock(hdev); |
Johan Hedberg | dcc36c1 | 2014-07-09 12:59:13 +0300 | [diff] [blame] | 4218 | hci_bdaddr_list_clear(&hdev->blacklist); |
Johan Hedberg | 6659358 | 2014-07-09 12:59:14 +0300 | [diff] [blame] | 4219 | hci_bdaddr_list_clear(&hdev->whitelist); |
Johan Hedberg | 2aeb9a1 | 2011-01-04 12:08:51 +0200 | [diff] [blame] | 4220 | hci_uuids_clear(hdev); |
Johan Hedberg | 55ed8ca1 | 2011-01-17 14:41:05 +0200 | [diff] [blame] | 4221 | hci_link_keys_clear(hdev); |
Vinicius Costa Gomes | b899efa | 2012-02-02 21:08:00 -0300 | [diff] [blame] | 4222 | hci_smp_ltks_clear(hdev); |
Johan Hedberg | 970c4e4 | 2014-02-18 10:19:33 +0200 | [diff] [blame] | 4223 | hci_smp_irks_clear(hdev); |
Szymon Janc | 2763eda | 2011-03-22 13:12:22 +0100 | [diff] [blame] | 4224 | hci_remote_oob_data_clear(hdev); |
Johan Hedberg | dcc36c1 | 2014-07-09 12:59:13 +0300 | [diff] [blame] | 4225 | hci_bdaddr_list_clear(&hdev->le_white_list); |
Johan Hedberg | 373110c | 2014-07-02 17:37:25 +0300 | [diff] [blame] | 4226 | hci_conn_params_clear_all(hdev); |
Gustavo F. Padovan | 09fd0de | 2011-06-17 13:03:21 -0300 | [diff] [blame] | 4227 | hci_dev_unlock(hdev); |
Johan Hedberg | e2e0cac | 2011-01-04 12:08:50 +0200 | [diff] [blame] | 4228 | |
David Herrmann | dc946bd | 2012-01-07 15:47:24 +0100 | [diff] [blame] | 4229 | hci_dev_put(hdev); |
Sasha Levin | 3df92b3 | 2012-05-27 22:36:56 +0200 | [diff] [blame] | 4230 | |
| 4231 | ida_simple_remove(&hci_index_ida, id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4232 | } |
| 4233 | EXPORT_SYMBOL(hci_unregister_dev); |
| 4234 | |
| 4235 | /* Suspend HCI device */ |
| 4236 | int hci_suspend_dev(struct hci_dev *hdev) |
| 4237 | { |
| 4238 | hci_notify(hdev, HCI_DEV_SUSPEND); |
| 4239 | return 0; |
| 4240 | } |
| 4241 | EXPORT_SYMBOL(hci_suspend_dev); |
| 4242 | |
| 4243 | /* Resume HCI device */ |
| 4244 | int hci_resume_dev(struct hci_dev *hdev) |
| 4245 | { |
| 4246 | hci_notify(hdev, HCI_DEV_RESUME); |
| 4247 | return 0; |
| 4248 | } |
| 4249 | EXPORT_SYMBOL(hci_resume_dev); |
| 4250 | |
Marcel Holtmann | 75e0569 | 2014-11-02 08:15:38 +0100 | [diff] [blame] | 4251 | /* Reset HCI device */ |
| 4252 | int hci_reset_dev(struct hci_dev *hdev) |
| 4253 | { |
| 4254 | const u8 hw_err[] = { HCI_EV_HARDWARE_ERROR, 0x01, 0x00 }; |
| 4255 | struct sk_buff *skb; |
| 4256 | |
| 4257 | skb = bt_skb_alloc(3, GFP_ATOMIC); |
| 4258 | if (!skb) |
| 4259 | return -ENOMEM; |
| 4260 | |
| 4261 | bt_cb(skb)->pkt_type = HCI_EVENT_PKT; |
| 4262 | memcpy(skb_put(skb, 3), hw_err, 3); |
| 4263 | |
| 4264 | /* Send Hardware Error to upper stack */ |
| 4265 | return hci_recv_frame(hdev, skb); |
| 4266 | } |
| 4267 | EXPORT_SYMBOL(hci_reset_dev); |
| 4268 | |
Marcel Holtmann | 76bca88 | 2009-11-18 00:40:39 +0100 | [diff] [blame] | 4269 | /* Receive frame from HCI drivers */ |
Marcel Holtmann | e1a2617 | 2013-10-10 16:52:43 -0700 | [diff] [blame] | 4270 | int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb) |
Marcel Holtmann | 76bca88 | 2009-11-18 00:40:39 +0100 | [diff] [blame] | 4271 | { |
Marcel Holtmann | 76bca88 | 2009-11-18 00:40:39 +0100 | [diff] [blame] | 4272 | if (!hdev || (!test_bit(HCI_UP, &hdev->flags) |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 4273 | && !test_bit(HCI_INIT, &hdev->flags))) { |
Marcel Holtmann | 76bca88 | 2009-11-18 00:40:39 +0100 | [diff] [blame] | 4274 | kfree_skb(skb); |
| 4275 | return -ENXIO; |
| 4276 | } |
| 4277 | |
Jorrit Schippers | d82603c | 2012-12-27 17:33:02 +0100 | [diff] [blame] | 4278 | /* Incoming skb */ |
Marcel Holtmann | 76bca88 | 2009-11-18 00:40:39 +0100 | [diff] [blame] | 4279 | bt_cb(skb)->incoming = 1; |
| 4280 | |
| 4281 | /* Time stamp */ |
| 4282 | __net_timestamp(skb); |
| 4283 | |
Marcel Holtmann | 76bca88 | 2009-11-18 00:40:39 +0100 | [diff] [blame] | 4284 | skb_queue_tail(&hdev->rx_q, skb); |
Marcel Holtmann | b78752c | 2010-08-08 23:06:53 -0400 | [diff] [blame] | 4285 | queue_work(hdev->workqueue, &hdev->rx_work); |
Marcel Holtmann | c78ae28 | 2009-11-18 01:02:54 +0100 | [diff] [blame] | 4286 | |
Marcel Holtmann | 76bca88 | 2009-11-18 00:40:39 +0100 | [diff] [blame] | 4287 | return 0; |
| 4288 | } |
| 4289 | EXPORT_SYMBOL(hci_recv_frame); |
| 4290 | |
Suraj Sumangala | 33e882a | 2010-07-14 13:02:17 +0530 | [diff] [blame] | 4291 | static int hci_reassembly(struct hci_dev *hdev, int type, void *data, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 4292 | int count, __u8 index) |
Suraj Sumangala | 33e882a | 2010-07-14 13:02:17 +0530 | [diff] [blame] | 4293 | { |
| 4294 | int len = 0; |
| 4295 | int hlen = 0; |
| 4296 | int remain = count; |
| 4297 | struct sk_buff *skb; |
| 4298 | struct bt_skb_cb *scb; |
| 4299 | |
| 4300 | if ((type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT) || |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 4301 | index >= NUM_REASSEMBLY) |
Suraj Sumangala | 33e882a | 2010-07-14 13:02:17 +0530 | [diff] [blame] | 4302 | return -EILSEQ; |
| 4303 | |
| 4304 | skb = hdev->reassembly[index]; |
| 4305 | |
| 4306 | if (!skb) { |
| 4307 | switch (type) { |
| 4308 | case HCI_ACLDATA_PKT: |
| 4309 | len = HCI_MAX_FRAME_SIZE; |
| 4310 | hlen = HCI_ACL_HDR_SIZE; |
| 4311 | break; |
| 4312 | case HCI_EVENT_PKT: |
| 4313 | len = HCI_MAX_EVENT_SIZE; |
| 4314 | hlen = HCI_EVENT_HDR_SIZE; |
| 4315 | break; |
| 4316 | case HCI_SCODATA_PKT: |
| 4317 | len = HCI_MAX_SCO_SIZE; |
| 4318 | hlen = HCI_SCO_HDR_SIZE; |
| 4319 | break; |
| 4320 | } |
| 4321 | |
Gustavo F. Padovan | 1e429f3 | 2011-04-04 18:25:14 -0300 | [diff] [blame] | 4322 | skb = bt_skb_alloc(len, GFP_ATOMIC); |
Suraj Sumangala | 33e882a | 2010-07-14 13:02:17 +0530 | [diff] [blame] | 4323 | if (!skb) |
| 4324 | return -ENOMEM; |
| 4325 | |
| 4326 | scb = (void *) skb->cb; |
| 4327 | scb->expect = hlen; |
| 4328 | scb->pkt_type = type; |
| 4329 | |
Suraj Sumangala | 33e882a | 2010-07-14 13:02:17 +0530 | [diff] [blame] | 4330 | hdev->reassembly[index] = skb; |
| 4331 | } |
| 4332 | |
| 4333 | while (count) { |
| 4334 | scb = (void *) skb->cb; |
Dan Carpenter | 89bb46d | 2012-02-28 09:57:59 +0300 | [diff] [blame] | 4335 | len = min_t(uint, scb->expect, count); |
Suraj Sumangala | 33e882a | 2010-07-14 13:02:17 +0530 | [diff] [blame] | 4336 | |
| 4337 | memcpy(skb_put(skb, len), data, len); |
| 4338 | |
| 4339 | count -= len; |
| 4340 | data += len; |
| 4341 | scb->expect -= len; |
| 4342 | remain = count; |
| 4343 | |
| 4344 | switch (type) { |
| 4345 | case HCI_EVENT_PKT: |
| 4346 | if (skb->len == HCI_EVENT_HDR_SIZE) { |
| 4347 | struct hci_event_hdr *h = hci_event_hdr(skb); |
| 4348 | scb->expect = h->plen; |
| 4349 | |
| 4350 | if (skb_tailroom(skb) < scb->expect) { |
| 4351 | kfree_skb(skb); |
| 4352 | hdev->reassembly[index] = NULL; |
| 4353 | return -ENOMEM; |
| 4354 | } |
| 4355 | } |
| 4356 | break; |
| 4357 | |
| 4358 | case HCI_ACLDATA_PKT: |
| 4359 | if (skb->len == HCI_ACL_HDR_SIZE) { |
| 4360 | struct hci_acl_hdr *h = hci_acl_hdr(skb); |
| 4361 | scb->expect = __le16_to_cpu(h->dlen); |
| 4362 | |
| 4363 | if (skb_tailroom(skb) < scb->expect) { |
| 4364 | kfree_skb(skb); |
| 4365 | hdev->reassembly[index] = NULL; |
| 4366 | return -ENOMEM; |
| 4367 | } |
| 4368 | } |
| 4369 | break; |
| 4370 | |
| 4371 | case HCI_SCODATA_PKT: |
| 4372 | if (skb->len == HCI_SCO_HDR_SIZE) { |
| 4373 | struct hci_sco_hdr *h = hci_sco_hdr(skb); |
| 4374 | scb->expect = h->dlen; |
| 4375 | |
| 4376 | if (skb_tailroom(skb) < scb->expect) { |
| 4377 | kfree_skb(skb); |
| 4378 | hdev->reassembly[index] = NULL; |
| 4379 | return -ENOMEM; |
| 4380 | } |
| 4381 | } |
| 4382 | break; |
| 4383 | } |
| 4384 | |
| 4385 | if (scb->expect == 0) { |
| 4386 | /* Complete frame */ |
| 4387 | |
| 4388 | bt_cb(skb)->pkt_type = type; |
Marcel Holtmann | e1a2617 | 2013-10-10 16:52:43 -0700 | [diff] [blame] | 4389 | hci_recv_frame(hdev, skb); |
Suraj Sumangala | 33e882a | 2010-07-14 13:02:17 +0530 | [diff] [blame] | 4390 | |
| 4391 | hdev->reassembly[index] = NULL; |
| 4392 | return remain; |
| 4393 | } |
| 4394 | } |
| 4395 | |
| 4396 | return remain; |
| 4397 | } |
| 4398 | |
Suraj Sumangala | 9981151 | 2010-07-14 13:02:19 +0530 | [diff] [blame] | 4399 | #define STREAM_REASSEMBLY 0 |
| 4400 | |
| 4401 | int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count) |
| 4402 | { |
| 4403 | int type; |
| 4404 | int rem = 0; |
| 4405 | |
Gustavo F. Padovan | da5f6c3 | 2010-07-24 01:34:54 -0300 | [diff] [blame] | 4406 | while (count) { |
Suraj Sumangala | 9981151 | 2010-07-14 13:02:19 +0530 | [diff] [blame] | 4407 | struct sk_buff *skb = hdev->reassembly[STREAM_REASSEMBLY]; |
| 4408 | |
| 4409 | if (!skb) { |
| 4410 | struct { char type; } *pkt; |
| 4411 | |
| 4412 | /* Start of the frame */ |
| 4413 | pkt = data; |
| 4414 | type = pkt->type; |
| 4415 | |
| 4416 | data++; |
| 4417 | count--; |
| 4418 | } else |
| 4419 | type = bt_cb(skb)->pkt_type; |
| 4420 | |
Gustavo F. Padovan | 1e429f3 | 2011-04-04 18:25:14 -0300 | [diff] [blame] | 4421 | rem = hci_reassembly(hdev, type, data, count, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 4422 | STREAM_REASSEMBLY); |
Suraj Sumangala | 9981151 | 2010-07-14 13:02:19 +0530 | [diff] [blame] | 4423 | if (rem < 0) |
| 4424 | return rem; |
| 4425 | |
| 4426 | data += (count - rem); |
| 4427 | count = rem; |
Joe Perches | f81c622 | 2011-06-03 11:51:19 +0000 | [diff] [blame] | 4428 | } |
Suraj Sumangala | 9981151 | 2010-07-14 13:02:19 +0530 | [diff] [blame] | 4429 | |
| 4430 | return rem; |
| 4431 | } |
| 4432 | EXPORT_SYMBOL(hci_recv_stream_fragment); |
| 4433 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4434 | /* ---- Interface to upper protocols ---- */ |
| 4435 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4436 | int hci_register_cb(struct hci_cb *cb) |
| 4437 | { |
| 4438 | BT_DBG("%p name %s", cb, cb->name); |
| 4439 | |
Gustavo F. Padovan | f20d09d | 2011-12-22 16:30:27 -0200 | [diff] [blame] | 4440 | write_lock(&hci_cb_list_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4441 | list_add(&cb->list, &hci_cb_list); |
Gustavo F. Padovan | f20d09d | 2011-12-22 16:30:27 -0200 | [diff] [blame] | 4442 | write_unlock(&hci_cb_list_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4443 | |
| 4444 | return 0; |
| 4445 | } |
| 4446 | EXPORT_SYMBOL(hci_register_cb); |
| 4447 | |
| 4448 | int hci_unregister_cb(struct hci_cb *cb) |
| 4449 | { |
| 4450 | BT_DBG("%p name %s", cb, cb->name); |
| 4451 | |
Gustavo F. Padovan | f20d09d | 2011-12-22 16:30:27 -0200 | [diff] [blame] | 4452 | write_lock(&hci_cb_list_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4453 | list_del(&cb->list); |
Gustavo F. Padovan | f20d09d | 2011-12-22 16:30:27 -0200 | [diff] [blame] | 4454 | write_unlock(&hci_cb_list_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4455 | |
| 4456 | return 0; |
| 4457 | } |
| 4458 | EXPORT_SYMBOL(hci_unregister_cb); |
| 4459 | |
Marcel Holtmann | 5108699 | 2013-10-10 14:54:19 -0700 | [diff] [blame] | 4460 | static void hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4461 | { |
Marcel Holtmann | cdc52fa | 2014-07-06 15:36:15 +0200 | [diff] [blame] | 4462 | int err; |
| 4463 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 4464 | BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4465 | |
Marcel Holtmann | cd82e61 | 2012-02-20 20:34:38 +0100 | [diff] [blame] | 4466 | /* Time stamp */ |
| 4467 | __net_timestamp(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4468 | |
Marcel Holtmann | cd82e61 | 2012-02-20 20:34:38 +0100 | [diff] [blame] | 4469 | /* Send copy to monitor */ |
| 4470 | hci_send_to_monitor(hdev, skb); |
| 4471 | |
| 4472 | if (atomic_read(&hdev->promisc)) { |
| 4473 | /* Send copy to the sockets */ |
Marcel Holtmann | 470fe1b | 2012-02-20 14:50:30 +0100 | [diff] [blame] | 4474 | hci_send_to_sock(hdev, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4475 | } |
| 4476 | |
| 4477 | /* Get rid of skb owner, prior to sending to the driver. */ |
| 4478 | skb_orphan(skb); |
| 4479 | |
Marcel Holtmann | cdc52fa | 2014-07-06 15:36:15 +0200 | [diff] [blame] | 4480 | err = hdev->send(hdev, skb); |
| 4481 | if (err < 0) { |
| 4482 | BT_ERR("%s sending frame failed (%d)", hdev->name, err); |
| 4483 | kfree_skb(skb); |
| 4484 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4485 | } |
| 4486 | |
Johan Hedberg | 3119ae9 | 2013-03-05 20:37:44 +0200 | [diff] [blame] | 4487 | void hci_req_init(struct hci_request *req, struct hci_dev *hdev) |
| 4488 | { |
| 4489 | skb_queue_head_init(&req->cmd_q); |
| 4490 | req->hdev = hdev; |
Andre Guedes | 5d73e03 | 2013-03-08 11:20:16 -0300 | [diff] [blame] | 4491 | req->err = 0; |
Johan Hedberg | 3119ae9 | 2013-03-05 20:37:44 +0200 | [diff] [blame] | 4492 | } |
| 4493 | |
| 4494 | int hci_req_run(struct hci_request *req, hci_req_complete_t complete) |
| 4495 | { |
| 4496 | struct hci_dev *hdev = req->hdev; |
| 4497 | struct sk_buff *skb; |
| 4498 | unsigned long flags; |
| 4499 | |
| 4500 | BT_DBG("length %u", skb_queue_len(&req->cmd_q)); |
| 4501 | |
Stephen Hemminger | 49c922b | 2014-10-27 21:12:20 -0700 | [diff] [blame] | 4502 | /* If an error occurred during request building, remove all HCI |
Andre Guedes | 5d73e03 | 2013-03-08 11:20:16 -0300 | [diff] [blame] | 4503 | * commands queued on the HCI request queue. |
| 4504 | */ |
| 4505 | if (req->err) { |
| 4506 | skb_queue_purge(&req->cmd_q); |
| 4507 | return req->err; |
| 4508 | } |
| 4509 | |
Johan Hedberg | 3119ae9 | 2013-03-05 20:37:44 +0200 | [diff] [blame] | 4510 | /* Do not allow empty requests */ |
| 4511 | if (skb_queue_empty(&req->cmd_q)) |
Andre Guedes | 382b0c3 | 2013-03-08 11:20:14 -0300 | [diff] [blame] | 4512 | return -ENODATA; |
Johan Hedberg | 3119ae9 | 2013-03-05 20:37:44 +0200 | [diff] [blame] | 4513 | |
| 4514 | skb = skb_peek_tail(&req->cmd_q); |
| 4515 | bt_cb(skb)->req.complete = complete; |
| 4516 | |
| 4517 | spin_lock_irqsave(&hdev->cmd_q.lock, flags); |
| 4518 | skb_queue_splice_tail(&req->cmd_q, &hdev->cmd_q); |
| 4519 | spin_unlock_irqrestore(&hdev->cmd_q.lock, flags); |
| 4520 | |
| 4521 | queue_work(hdev->workqueue, &hdev->cmd_work); |
| 4522 | |
| 4523 | return 0; |
| 4524 | } |
| 4525 | |
Marcel Holtmann | 899de76 | 2014-07-11 05:51:58 +0200 | [diff] [blame] | 4526 | bool hci_req_pending(struct hci_dev *hdev) |
| 4527 | { |
| 4528 | return (hdev->req_status == HCI_REQ_PEND); |
| 4529 | } |
| 4530 | |
Johan Hedberg | 1ca3a9d | 2013-03-05 20:37:45 +0200 | [diff] [blame] | 4531 | static struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, |
Johan Hedberg | 07dc93d | 2013-04-19 10:14:51 +0300 | [diff] [blame] | 4532 | u32 plen, const void *param) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4533 | { |
| 4534 | int len = HCI_COMMAND_HDR_SIZE + plen; |
| 4535 | struct hci_command_hdr *hdr; |
| 4536 | struct sk_buff *skb; |
| 4537 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4538 | skb = bt_skb_alloc(len, GFP_ATOMIC); |
Johan Hedberg | 1ca3a9d | 2013-03-05 20:37:45 +0200 | [diff] [blame] | 4539 | if (!skb) |
| 4540 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4541 | |
| 4542 | hdr = (struct hci_command_hdr *) skb_put(skb, HCI_COMMAND_HDR_SIZE); |
Marcel Holtmann | a9de924 | 2007-10-20 13:33:56 +0200 | [diff] [blame] | 4543 | hdr->opcode = cpu_to_le16(opcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4544 | hdr->plen = plen; |
| 4545 | |
| 4546 | if (plen) |
| 4547 | memcpy(skb_put(skb, plen), param, plen); |
| 4548 | |
| 4549 | BT_DBG("skb len %d", skb->len); |
| 4550 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 4551 | bt_cb(skb)->pkt_type = HCI_COMMAND_PKT; |
Marcel Holtmann | 43e73e4 | 2014-09-14 23:06:28 +0200 | [diff] [blame] | 4552 | bt_cb(skb)->opcode = opcode; |
Marcel Holtmann | c78ae28 | 2009-11-18 01:02:54 +0100 | [diff] [blame] | 4553 | |
Johan Hedberg | 1ca3a9d | 2013-03-05 20:37:45 +0200 | [diff] [blame] | 4554 | return skb; |
| 4555 | } |
| 4556 | |
| 4557 | /* Send HCI command */ |
Johan Hedberg | 07dc93d | 2013-04-19 10:14:51 +0300 | [diff] [blame] | 4558 | int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, |
| 4559 | const void *param) |
Johan Hedberg | 1ca3a9d | 2013-03-05 20:37:45 +0200 | [diff] [blame] | 4560 | { |
| 4561 | struct sk_buff *skb; |
| 4562 | |
| 4563 | BT_DBG("%s opcode 0x%4.4x plen %d", hdev->name, opcode, plen); |
| 4564 | |
| 4565 | skb = hci_prepare_cmd(hdev, opcode, plen, param); |
| 4566 | if (!skb) { |
| 4567 | BT_ERR("%s no memory for command", hdev->name); |
| 4568 | return -ENOMEM; |
| 4569 | } |
| 4570 | |
Stephen Hemminger | 49c922b | 2014-10-27 21:12:20 -0700 | [diff] [blame] | 4571 | /* Stand-alone HCI commands must be flagged as |
Johan Hedberg | 11714b3 | 2013-03-05 20:37:47 +0200 | [diff] [blame] | 4572 | * single-command requests. |
| 4573 | */ |
| 4574 | bt_cb(skb)->req.start = true; |
| 4575 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4576 | skb_queue_tail(&hdev->cmd_q, skb); |
Gustavo F. Padovan | c347b76 | 2011-12-14 23:53:47 -0200 | [diff] [blame] | 4577 | queue_work(hdev->workqueue, &hdev->cmd_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4578 | |
| 4579 | return 0; |
| 4580 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4581 | |
Johan Hedberg | 71c76a1 | 2013-03-05 20:37:46 +0200 | [diff] [blame] | 4582 | /* Queue a command to an asynchronous HCI request */ |
Johan Hedberg | 07dc93d | 2013-04-19 10:14:51 +0300 | [diff] [blame] | 4583 | void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, |
| 4584 | const void *param, u8 event) |
Johan Hedberg | 71c76a1 | 2013-03-05 20:37:46 +0200 | [diff] [blame] | 4585 | { |
| 4586 | struct hci_dev *hdev = req->hdev; |
| 4587 | struct sk_buff *skb; |
| 4588 | |
| 4589 | BT_DBG("%s opcode 0x%4.4x plen %d", hdev->name, opcode, plen); |
| 4590 | |
Stephen Hemminger | 49c922b | 2014-10-27 21:12:20 -0700 | [diff] [blame] | 4591 | /* If an error occurred during request building, there is no point in |
Andre Guedes | 34739c1 | 2013-03-08 11:20:18 -0300 | [diff] [blame] | 4592 | * queueing the HCI command. We can simply return. |
| 4593 | */ |
| 4594 | if (req->err) |
| 4595 | return; |
| 4596 | |
Johan Hedberg | 71c76a1 | 2013-03-05 20:37:46 +0200 | [diff] [blame] | 4597 | skb = hci_prepare_cmd(hdev, opcode, plen, param); |
| 4598 | if (!skb) { |
Andre Guedes | 5d73e03 | 2013-03-08 11:20:16 -0300 | [diff] [blame] | 4599 | BT_ERR("%s no memory for command (opcode 0x%4.4x)", |
| 4600 | hdev->name, opcode); |
| 4601 | req->err = -ENOMEM; |
Andre Guedes | e348fe6 | 2013-03-08 11:20:17 -0300 | [diff] [blame] | 4602 | return; |
Johan Hedberg | 71c76a1 | 2013-03-05 20:37:46 +0200 | [diff] [blame] | 4603 | } |
| 4604 | |
| 4605 | if (skb_queue_empty(&req->cmd_q)) |
| 4606 | bt_cb(skb)->req.start = true; |
| 4607 | |
Johan Hedberg | 02350a7 | 2013-04-03 21:50:29 +0300 | [diff] [blame] | 4608 | bt_cb(skb)->req.event = event; |
| 4609 | |
Johan Hedberg | 71c76a1 | 2013-03-05 20:37:46 +0200 | [diff] [blame] | 4610 | skb_queue_tail(&req->cmd_q, skb); |
Johan Hedberg | 71c76a1 | 2013-03-05 20:37:46 +0200 | [diff] [blame] | 4611 | } |
| 4612 | |
Johan Hedberg | 07dc93d | 2013-04-19 10:14:51 +0300 | [diff] [blame] | 4613 | void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, |
| 4614 | const void *param) |
Johan Hedberg | 02350a7 | 2013-04-03 21:50:29 +0300 | [diff] [blame] | 4615 | { |
| 4616 | hci_req_add_ev(req, opcode, plen, param, 0); |
| 4617 | } |
| 4618 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4619 | /* Get data from the previously sent command */ |
Marcel Holtmann | a9de924 | 2007-10-20 13:33:56 +0200 | [diff] [blame] | 4620 | void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4621 | { |
| 4622 | struct hci_command_hdr *hdr; |
| 4623 | |
| 4624 | if (!hdev->sent_cmd) |
| 4625 | return NULL; |
| 4626 | |
| 4627 | hdr = (void *) hdev->sent_cmd->data; |
| 4628 | |
Marcel Holtmann | a9de924 | 2007-10-20 13:33:56 +0200 | [diff] [blame] | 4629 | if (hdr->opcode != cpu_to_le16(opcode)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4630 | return NULL; |
| 4631 | |
Andrei Emeltchenko | f0e0951 | 2012-06-11 11:13:09 +0300 | [diff] [blame] | 4632 | BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4633 | |
| 4634 | return hdev->sent_cmd->data + HCI_COMMAND_HDR_SIZE; |
| 4635 | } |
| 4636 | |
| 4637 | /* Send ACL data */ |
| 4638 | static void hci_add_acl_hdr(struct sk_buff *skb, __u16 handle, __u16 flags) |
| 4639 | { |
| 4640 | struct hci_acl_hdr *hdr; |
| 4641 | int len = skb->len; |
| 4642 | |
Arnaldo Carvalho de Melo | badff6d | 2007-03-13 13:06:52 -0300 | [diff] [blame] | 4643 | skb_push(skb, HCI_ACL_HDR_SIZE); |
| 4644 | skb_reset_transport_header(skb); |
Arnaldo Carvalho de Melo | 9c70220 | 2007-04-25 18:04:18 -0700 | [diff] [blame] | 4645 | hdr = (struct hci_acl_hdr *)skb_transport_header(skb); |
YOSHIFUJI Hideaki | aca3192 | 2007-03-25 20:12:50 -0700 | [diff] [blame] | 4646 | hdr->handle = cpu_to_le16(hci_handle_pack(handle, flags)); |
| 4647 | hdr->dlen = cpu_to_le16(len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4648 | } |
| 4649 | |
Andrei Emeltchenko | ee22be7 | 2012-09-21 12:30:04 +0300 | [diff] [blame] | 4650 | static void hci_queue_acl(struct hci_chan *chan, struct sk_buff_head *queue, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 4651 | struct sk_buff *skb, __u16 flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4652 | { |
Andrei Emeltchenko | ee22be7 | 2012-09-21 12:30:04 +0300 | [diff] [blame] | 4653 | struct hci_conn *conn = chan->conn; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4654 | struct hci_dev *hdev = conn->hdev; |
| 4655 | struct sk_buff *list; |
| 4656 | |
Gustavo Padovan | 087bfd9 | 2012-05-11 13:16:11 -0300 | [diff] [blame] | 4657 | skb->len = skb_headlen(skb); |
| 4658 | skb->data_len = 0; |
| 4659 | |
| 4660 | bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT; |
Andrei Emeltchenko | 204a6e5 | 2012-10-15 11:58:39 +0300 | [diff] [blame] | 4661 | |
| 4662 | switch (hdev->dev_type) { |
| 4663 | case HCI_BREDR: |
| 4664 | hci_add_acl_hdr(skb, conn->handle, flags); |
| 4665 | break; |
| 4666 | case HCI_AMP: |
| 4667 | hci_add_acl_hdr(skb, chan->handle, flags); |
| 4668 | break; |
| 4669 | default: |
| 4670 | BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type); |
| 4671 | return; |
| 4672 | } |
Gustavo Padovan | 087bfd9 | 2012-05-11 13:16:11 -0300 | [diff] [blame] | 4673 | |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 4674 | list = skb_shinfo(skb)->frag_list; |
| 4675 | if (!list) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4676 | /* Non fragmented */ |
| 4677 | BT_DBG("%s nonfrag skb %p len %d", hdev->name, skb, skb->len); |
| 4678 | |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4679 | skb_queue_tail(queue, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4680 | } else { |
| 4681 | /* Fragmented */ |
| 4682 | BT_DBG("%s frag %p len %d", hdev->name, skb, skb->len); |
| 4683 | |
| 4684 | skb_shinfo(skb)->frag_list = NULL; |
| 4685 | |
Jukka Rissanen | 9cfd5a2 | 2014-10-29 10:16:00 +0200 | [diff] [blame] | 4686 | /* Queue all fragments atomically. We need to use spin_lock_bh |
| 4687 | * here because of 6LoWPAN links, as there this function is |
| 4688 | * called from softirq and using normal spin lock could cause |
| 4689 | * deadlocks. |
| 4690 | */ |
| 4691 | spin_lock_bh(&queue->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4692 | |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4693 | __skb_queue_tail(queue, skb); |
Andrei Emeltchenko | e702112 | 2011-01-03 11:14:36 +0200 | [diff] [blame] | 4694 | |
| 4695 | flags &= ~ACL_START; |
| 4696 | flags |= ACL_CONT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4697 | do { |
| 4698 | skb = list; list = list->next; |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 4699 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 4700 | bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT; |
Andrei Emeltchenko | e702112 | 2011-01-03 11:14:36 +0200 | [diff] [blame] | 4701 | hci_add_acl_hdr(skb, conn->handle, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4702 | |
| 4703 | BT_DBG("%s frag %p len %d", hdev->name, skb, skb->len); |
| 4704 | |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4705 | __skb_queue_tail(queue, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4706 | } while (list); |
| 4707 | |
Jukka Rissanen | 9cfd5a2 | 2014-10-29 10:16:00 +0200 | [diff] [blame] | 4708 | spin_unlock_bh(&queue->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4709 | } |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4710 | } |
| 4711 | |
| 4712 | void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags) |
| 4713 | { |
Andrei Emeltchenko | ee22be7 | 2012-09-21 12:30:04 +0300 | [diff] [blame] | 4714 | struct hci_dev *hdev = chan->conn->hdev; |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4715 | |
Andrei Emeltchenko | f0e0951 | 2012-06-11 11:13:09 +0300 | [diff] [blame] | 4716 | BT_DBG("%s chan %p flags 0x%4.4x", hdev->name, chan, flags); |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4717 | |
Andrei Emeltchenko | ee22be7 | 2012-09-21 12:30:04 +0300 | [diff] [blame] | 4718 | hci_queue_acl(chan, &chan->data_q, skb, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4719 | |
Gustavo F. Padovan | 3eff45e | 2011-12-15 00:50:02 -0200 | [diff] [blame] | 4720 | queue_work(hdev->workqueue, &hdev->tx_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4721 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4722 | |
| 4723 | /* Send SCO data */ |
Gustavo F. Padovan | 0d861d8 | 2010-05-01 16:15:35 -0300 | [diff] [blame] | 4724 | void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4725 | { |
| 4726 | struct hci_dev *hdev = conn->hdev; |
| 4727 | struct hci_sco_hdr hdr; |
| 4728 | |
| 4729 | BT_DBG("%s len %d", hdev->name, skb->len); |
| 4730 | |
YOSHIFUJI Hideaki | aca3192 | 2007-03-25 20:12:50 -0700 | [diff] [blame] | 4731 | hdr.handle = cpu_to_le16(conn->handle); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4732 | hdr.dlen = skb->len; |
| 4733 | |
Arnaldo Carvalho de Melo | badff6d | 2007-03-13 13:06:52 -0300 | [diff] [blame] | 4734 | skb_push(skb, HCI_SCO_HDR_SIZE); |
| 4735 | skb_reset_transport_header(skb); |
Arnaldo Carvalho de Melo | 9c70220 | 2007-04-25 18:04:18 -0700 | [diff] [blame] | 4736 | memcpy(skb_transport_header(skb), &hdr, HCI_SCO_HDR_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4737 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 4738 | bt_cb(skb)->pkt_type = HCI_SCODATA_PKT; |
Marcel Holtmann | c78ae28 | 2009-11-18 01:02:54 +0100 | [diff] [blame] | 4739 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4740 | skb_queue_tail(&conn->data_q, skb); |
Gustavo F. Padovan | 3eff45e | 2011-12-15 00:50:02 -0200 | [diff] [blame] | 4741 | queue_work(hdev->workqueue, &hdev->tx_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4742 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4743 | |
| 4744 | /* ---- HCI TX task (outgoing data) ---- */ |
| 4745 | |
| 4746 | /* HCI Connection scheduler */ |
Gustavo Padovan | 6039aa73 | 2012-05-23 04:04:18 -0300 | [diff] [blame] | 4747 | static struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type, |
| 4748 | int *quote) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4749 | { |
| 4750 | struct hci_conn_hash *h = &hdev->conn_hash; |
Luiz Augusto von Dentz | 8035ded | 2011-11-01 10:58:56 +0200 | [diff] [blame] | 4751 | struct hci_conn *conn = NULL, *c; |
Mikel Astiz | abc5de8 | 2012-04-11 08:48:47 +0200 | [diff] [blame] | 4752 | unsigned int num = 0, min = ~0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4753 | |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 4754 | /* We don't have to lock device here. Connections are always |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4755 | * added and removed with TX task disabled. */ |
Gustavo F. Padovan | bf4c632 | 2011-12-14 22:54:12 -0200 | [diff] [blame] | 4756 | |
| 4757 | rcu_read_lock(); |
| 4758 | |
| 4759 | list_for_each_entry_rcu(c, &h->list, list) { |
Marcel Holtmann | 769be97 | 2008-07-14 20:13:49 +0200 | [diff] [blame] | 4760 | if (c->type != type || skb_queue_empty(&c->data_q)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4761 | continue; |
Marcel Holtmann | 769be97 | 2008-07-14 20:13:49 +0200 | [diff] [blame] | 4762 | |
| 4763 | if (c->state != BT_CONNECTED && c->state != BT_CONFIG) |
| 4764 | continue; |
| 4765 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4766 | num++; |
| 4767 | |
| 4768 | if (c->sent < min) { |
| 4769 | min = c->sent; |
| 4770 | conn = c; |
| 4771 | } |
Luiz Augusto von Dentz | 52087a7 | 2011-08-17 16:23:00 +0300 | [diff] [blame] | 4772 | |
| 4773 | if (hci_conn_num(hdev, type) == num) |
| 4774 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4775 | } |
| 4776 | |
Gustavo F. Padovan | bf4c632 | 2011-12-14 22:54:12 -0200 | [diff] [blame] | 4777 | rcu_read_unlock(); |
| 4778 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4779 | if (conn) { |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 4780 | int cnt, q; |
| 4781 | |
| 4782 | switch (conn->type) { |
| 4783 | case ACL_LINK: |
| 4784 | cnt = hdev->acl_cnt; |
| 4785 | break; |
| 4786 | case SCO_LINK: |
| 4787 | case ESCO_LINK: |
| 4788 | cnt = hdev->sco_cnt; |
| 4789 | break; |
| 4790 | case LE_LINK: |
| 4791 | cnt = hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt; |
| 4792 | break; |
| 4793 | default: |
| 4794 | cnt = 0; |
| 4795 | BT_ERR("Unknown link type"); |
| 4796 | } |
| 4797 | |
| 4798 | q = cnt / num; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4799 | *quote = q ? q : 1; |
| 4800 | } else |
| 4801 | *quote = 0; |
| 4802 | |
| 4803 | BT_DBG("conn %p quote %d", conn, *quote); |
| 4804 | return conn; |
| 4805 | } |
| 4806 | |
Gustavo Padovan | 6039aa73 | 2012-05-23 04:04:18 -0300 | [diff] [blame] | 4807 | static void hci_link_tx_to(struct hci_dev *hdev, __u8 type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4808 | { |
| 4809 | struct hci_conn_hash *h = &hdev->conn_hash; |
Luiz Augusto von Dentz | 8035ded | 2011-11-01 10:58:56 +0200 | [diff] [blame] | 4810 | struct hci_conn *c; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4811 | |
Ville Tervo | bae1f5d9 | 2011-02-10 22:38:53 -0300 | [diff] [blame] | 4812 | BT_ERR("%s link tx timeout", hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4813 | |
Gustavo F. Padovan | bf4c632 | 2011-12-14 22:54:12 -0200 | [diff] [blame] | 4814 | rcu_read_lock(); |
| 4815 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4816 | /* Kill stalled connections */ |
Gustavo F. Padovan | bf4c632 | 2011-12-14 22:54:12 -0200 | [diff] [blame] | 4817 | list_for_each_entry_rcu(c, &h->list, list) { |
Ville Tervo | bae1f5d9 | 2011-02-10 22:38:53 -0300 | [diff] [blame] | 4818 | if (c->type == type && c->sent) { |
Andrei Emeltchenko | 6ed93dc | 2012-09-25 12:49:43 +0300 | [diff] [blame] | 4819 | BT_ERR("%s killing stalled connection %pMR", |
| 4820 | hdev->name, &c->dst); |
Andre Guedes | bed7174 | 2013-01-30 11:50:56 -0300 | [diff] [blame] | 4821 | hci_disconnect(c, HCI_ERROR_REMOTE_USER_TERM); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4822 | } |
| 4823 | } |
Gustavo F. Padovan | bf4c632 | 2011-12-14 22:54:12 -0200 | [diff] [blame] | 4824 | |
| 4825 | rcu_read_unlock(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4826 | } |
| 4827 | |
Gustavo Padovan | 6039aa73 | 2012-05-23 04:04:18 -0300 | [diff] [blame] | 4828 | static struct hci_chan *hci_chan_sent(struct hci_dev *hdev, __u8 type, |
| 4829 | int *quote) |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4830 | { |
| 4831 | struct hci_conn_hash *h = &hdev->conn_hash; |
| 4832 | struct hci_chan *chan = NULL; |
Mikel Astiz | abc5de8 | 2012-04-11 08:48:47 +0200 | [diff] [blame] | 4833 | unsigned int num = 0, min = ~0, cur_prio = 0; |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4834 | struct hci_conn *conn; |
| 4835 | int cnt, q, conn_num = 0; |
| 4836 | |
| 4837 | BT_DBG("%s", hdev->name); |
| 4838 | |
Gustavo F. Padovan | bf4c632 | 2011-12-14 22:54:12 -0200 | [diff] [blame] | 4839 | rcu_read_lock(); |
| 4840 | |
| 4841 | list_for_each_entry_rcu(conn, &h->list, list) { |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4842 | struct hci_chan *tmp; |
| 4843 | |
| 4844 | if (conn->type != type) |
| 4845 | continue; |
| 4846 | |
| 4847 | if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG) |
| 4848 | continue; |
| 4849 | |
| 4850 | conn_num++; |
| 4851 | |
Gustavo F. Padovan | 8192ede | 2011-12-14 15:08:48 -0200 | [diff] [blame] | 4852 | list_for_each_entry_rcu(tmp, &conn->chan_list, list) { |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4853 | struct sk_buff *skb; |
| 4854 | |
| 4855 | if (skb_queue_empty(&tmp->data_q)) |
| 4856 | continue; |
| 4857 | |
| 4858 | skb = skb_peek(&tmp->data_q); |
| 4859 | if (skb->priority < cur_prio) |
| 4860 | continue; |
| 4861 | |
| 4862 | if (skb->priority > cur_prio) { |
| 4863 | num = 0; |
| 4864 | min = ~0; |
| 4865 | cur_prio = skb->priority; |
| 4866 | } |
| 4867 | |
| 4868 | num++; |
| 4869 | |
| 4870 | if (conn->sent < min) { |
| 4871 | min = conn->sent; |
| 4872 | chan = tmp; |
| 4873 | } |
| 4874 | } |
| 4875 | |
| 4876 | if (hci_conn_num(hdev, type) == conn_num) |
| 4877 | break; |
| 4878 | } |
| 4879 | |
Gustavo F. Padovan | bf4c632 | 2011-12-14 22:54:12 -0200 | [diff] [blame] | 4880 | rcu_read_unlock(); |
| 4881 | |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4882 | if (!chan) |
| 4883 | return NULL; |
| 4884 | |
| 4885 | switch (chan->conn->type) { |
| 4886 | case ACL_LINK: |
| 4887 | cnt = hdev->acl_cnt; |
| 4888 | break; |
Andrei Emeltchenko | bd1eb66 | 2012-10-10 17:38:30 +0300 | [diff] [blame] | 4889 | case AMP_LINK: |
| 4890 | cnt = hdev->block_cnt; |
| 4891 | break; |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4892 | case SCO_LINK: |
| 4893 | case ESCO_LINK: |
| 4894 | cnt = hdev->sco_cnt; |
| 4895 | break; |
| 4896 | case LE_LINK: |
| 4897 | cnt = hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt; |
| 4898 | break; |
| 4899 | default: |
| 4900 | cnt = 0; |
| 4901 | BT_ERR("Unknown link type"); |
| 4902 | } |
| 4903 | |
| 4904 | q = cnt / num; |
| 4905 | *quote = q ? q : 1; |
| 4906 | BT_DBG("chan %p quote %d", chan, *quote); |
| 4907 | return chan; |
| 4908 | } |
| 4909 | |
Luiz Augusto von Dentz | 02b20f0 | 2011-11-02 15:52:03 +0200 | [diff] [blame] | 4910 | static void hci_prio_recalculate(struct hci_dev *hdev, __u8 type) |
| 4911 | { |
| 4912 | struct hci_conn_hash *h = &hdev->conn_hash; |
| 4913 | struct hci_conn *conn; |
| 4914 | int num = 0; |
| 4915 | |
| 4916 | BT_DBG("%s", hdev->name); |
| 4917 | |
Gustavo F. Padovan | bf4c632 | 2011-12-14 22:54:12 -0200 | [diff] [blame] | 4918 | rcu_read_lock(); |
| 4919 | |
| 4920 | list_for_each_entry_rcu(conn, &h->list, list) { |
Luiz Augusto von Dentz | 02b20f0 | 2011-11-02 15:52:03 +0200 | [diff] [blame] | 4921 | struct hci_chan *chan; |
| 4922 | |
| 4923 | if (conn->type != type) |
| 4924 | continue; |
| 4925 | |
| 4926 | if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG) |
| 4927 | continue; |
| 4928 | |
| 4929 | num++; |
| 4930 | |
Gustavo F. Padovan | 8192ede | 2011-12-14 15:08:48 -0200 | [diff] [blame] | 4931 | list_for_each_entry_rcu(chan, &conn->chan_list, list) { |
Luiz Augusto von Dentz | 02b20f0 | 2011-11-02 15:52:03 +0200 | [diff] [blame] | 4932 | struct sk_buff *skb; |
| 4933 | |
| 4934 | if (chan->sent) { |
| 4935 | chan->sent = 0; |
| 4936 | continue; |
| 4937 | } |
| 4938 | |
| 4939 | if (skb_queue_empty(&chan->data_q)) |
| 4940 | continue; |
| 4941 | |
| 4942 | skb = skb_peek(&chan->data_q); |
| 4943 | if (skb->priority >= HCI_PRIO_MAX - 1) |
| 4944 | continue; |
| 4945 | |
| 4946 | skb->priority = HCI_PRIO_MAX - 1; |
| 4947 | |
| 4948 | BT_DBG("chan %p skb %p promoted to %d", chan, skb, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 4949 | skb->priority); |
Luiz Augusto von Dentz | 02b20f0 | 2011-11-02 15:52:03 +0200 | [diff] [blame] | 4950 | } |
| 4951 | |
| 4952 | if (hci_conn_num(hdev, type) == num) |
| 4953 | break; |
| 4954 | } |
Gustavo F. Padovan | bf4c632 | 2011-12-14 22:54:12 -0200 | [diff] [blame] | 4955 | |
| 4956 | rcu_read_unlock(); |
| 4957 | |
Luiz Augusto von Dentz | 02b20f0 | 2011-11-02 15:52:03 +0200 | [diff] [blame] | 4958 | } |
| 4959 | |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 4960 | static inline int __get_blocks(struct hci_dev *hdev, struct sk_buff *skb) |
| 4961 | { |
| 4962 | /* Calculate count of blocks used by this packet */ |
| 4963 | return DIV_ROUND_UP(skb->len - HCI_ACL_HDR_SIZE, hdev->block_len); |
| 4964 | } |
| 4965 | |
Gustavo Padovan | 6039aa73 | 2012-05-23 04:04:18 -0300 | [diff] [blame] | 4966 | static void __check_timeout(struct hci_dev *hdev, unsigned int cnt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4967 | { |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 4968 | if (!test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4969 | /* ACL tx timeout must be longer than maximum |
| 4970 | * link supervision timeout (40.9 seconds) */ |
Andrei Emeltchenko | 63d2bc1 | 2012-02-03 16:27:55 +0200 | [diff] [blame] | 4971 | if (!cnt && time_after(jiffies, hdev->acl_last_tx + |
Andrei Emeltchenko | 5f246e8 | 2012-06-11 11:13:07 +0300 | [diff] [blame] | 4972 | HCI_ACL_TX_TIMEOUT)) |
Ville Tervo | bae1f5d9 | 2011-02-10 22:38:53 -0300 | [diff] [blame] | 4973 | hci_link_tx_to(hdev, ACL_LINK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4974 | } |
Andrei Emeltchenko | 63d2bc1 | 2012-02-03 16:27:55 +0200 | [diff] [blame] | 4975 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4976 | |
Gustavo Padovan | 6039aa73 | 2012-05-23 04:04:18 -0300 | [diff] [blame] | 4977 | static void hci_sched_acl_pkt(struct hci_dev *hdev) |
Andrei Emeltchenko | 63d2bc1 | 2012-02-03 16:27:55 +0200 | [diff] [blame] | 4978 | { |
| 4979 | unsigned int cnt = hdev->acl_cnt; |
| 4980 | struct hci_chan *chan; |
| 4981 | struct sk_buff *skb; |
| 4982 | int quote; |
| 4983 | |
| 4984 | __check_timeout(hdev, cnt); |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 4985 | |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4986 | while (hdev->acl_cnt && |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 4987 | (chan = hci_chan_sent(hdev, ACL_LINK, "e))) { |
Luiz Augusto von Dentz | ec1cce2 | 2011-11-02 15:52:02 +0200 | [diff] [blame] | 4988 | u32 priority = (skb_peek(&chan->data_q))->priority; |
| 4989 | while (quote-- && (skb = skb_peek(&chan->data_q))) { |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4990 | BT_DBG("chan %p skb %p len %d priority %u", chan, skb, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 4991 | skb->len, skb->priority); |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4992 | |
Luiz Augusto von Dentz | ec1cce2 | 2011-11-02 15:52:02 +0200 | [diff] [blame] | 4993 | /* Stop if priority has changed */ |
| 4994 | if (skb->priority < priority) |
| 4995 | break; |
| 4996 | |
| 4997 | skb = skb_dequeue(&chan->data_q); |
| 4998 | |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 4999 | hci_conn_enter_active_mode(chan->conn, |
Gustavo F. Padovan | 0412468 | 2012-03-08 01:25:00 -0300 | [diff] [blame] | 5000 | bt_cb(skb)->force_active); |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 5001 | |
Marcel Holtmann | 57d17d7 | 2013-10-10 14:54:17 -0700 | [diff] [blame] | 5002 | hci_send_frame(hdev, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5003 | hdev->acl_last_tx = jiffies; |
| 5004 | |
| 5005 | hdev->acl_cnt--; |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 5006 | chan->sent++; |
| 5007 | chan->conn->sent++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5008 | } |
| 5009 | } |
Luiz Augusto von Dentz | 02b20f0 | 2011-11-02 15:52:03 +0200 | [diff] [blame] | 5010 | |
| 5011 | if (cnt != hdev->acl_cnt) |
| 5012 | hci_prio_recalculate(hdev, ACL_LINK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5013 | } |
| 5014 | |
Gustavo Padovan | 6039aa73 | 2012-05-23 04:04:18 -0300 | [diff] [blame] | 5015 | static void hci_sched_acl_blk(struct hci_dev *hdev) |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 5016 | { |
Andrei Emeltchenko | 63d2bc1 | 2012-02-03 16:27:55 +0200 | [diff] [blame] | 5017 | unsigned int cnt = hdev->block_cnt; |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 5018 | struct hci_chan *chan; |
| 5019 | struct sk_buff *skb; |
| 5020 | int quote; |
Andrei Emeltchenko | bd1eb66 | 2012-10-10 17:38:30 +0300 | [diff] [blame] | 5021 | u8 type; |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 5022 | |
Andrei Emeltchenko | 63d2bc1 | 2012-02-03 16:27:55 +0200 | [diff] [blame] | 5023 | __check_timeout(hdev, cnt); |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 5024 | |
Andrei Emeltchenko | bd1eb66 | 2012-10-10 17:38:30 +0300 | [diff] [blame] | 5025 | BT_DBG("%s", hdev->name); |
| 5026 | |
| 5027 | if (hdev->dev_type == HCI_AMP) |
| 5028 | type = AMP_LINK; |
| 5029 | else |
| 5030 | type = ACL_LINK; |
| 5031 | |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 5032 | while (hdev->block_cnt > 0 && |
Andrei Emeltchenko | bd1eb66 | 2012-10-10 17:38:30 +0300 | [diff] [blame] | 5033 | (chan = hci_chan_sent(hdev, type, "e))) { |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 5034 | u32 priority = (skb_peek(&chan->data_q))->priority; |
| 5035 | while (quote > 0 && (skb = skb_peek(&chan->data_q))) { |
| 5036 | int blocks; |
| 5037 | |
| 5038 | BT_DBG("chan %p skb %p len %d priority %u", chan, skb, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 5039 | skb->len, skb->priority); |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 5040 | |
| 5041 | /* Stop if priority has changed */ |
| 5042 | if (skb->priority < priority) |
| 5043 | break; |
| 5044 | |
| 5045 | skb = skb_dequeue(&chan->data_q); |
| 5046 | |
| 5047 | blocks = __get_blocks(hdev, skb); |
| 5048 | if (blocks > hdev->block_cnt) |
| 5049 | return; |
| 5050 | |
| 5051 | hci_conn_enter_active_mode(chan->conn, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 5052 | bt_cb(skb)->force_active); |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 5053 | |
Marcel Holtmann | 57d17d7 | 2013-10-10 14:54:17 -0700 | [diff] [blame] | 5054 | hci_send_frame(hdev, skb); |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 5055 | hdev->acl_last_tx = jiffies; |
| 5056 | |
| 5057 | hdev->block_cnt -= blocks; |
| 5058 | quote -= blocks; |
| 5059 | |
| 5060 | chan->sent += blocks; |
| 5061 | chan->conn->sent += blocks; |
| 5062 | } |
| 5063 | } |
| 5064 | |
| 5065 | if (cnt != hdev->block_cnt) |
Andrei Emeltchenko | bd1eb66 | 2012-10-10 17:38:30 +0300 | [diff] [blame] | 5066 | hci_prio_recalculate(hdev, type); |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 5067 | } |
| 5068 | |
Gustavo Padovan | 6039aa73 | 2012-05-23 04:04:18 -0300 | [diff] [blame] | 5069 | static void hci_sched_acl(struct hci_dev *hdev) |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 5070 | { |
| 5071 | BT_DBG("%s", hdev->name); |
| 5072 | |
Andrei Emeltchenko | bd1eb66 | 2012-10-10 17:38:30 +0300 | [diff] [blame] | 5073 | /* No ACL link over BR/EDR controller */ |
| 5074 | if (!hci_conn_num(hdev, ACL_LINK) && hdev->dev_type == HCI_BREDR) |
| 5075 | return; |
| 5076 | |
| 5077 | /* No AMP link over AMP controller */ |
| 5078 | if (!hci_conn_num(hdev, AMP_LINK) && hdev->dev_type == HCI_AMP) |
Andrei Emeltchenko | b71d385 | 2012-02-03 16:27:54 +0200 | [diff] [blame] | 5079 | return; |
| 5080 | |
| 5081 | switch (hdev->flow_ctl_mode) { |
| 5082 | case HCI_FLOW_CTL_MODE_PACKET_BASED: |
| 5083 | hci_sched_acl_pkt(hdev); |
| 5084 | break; |
| 5085 | |
| 5086 | case HCI_FLOW_CTL_MODE_BLOCK_BASED: |
| 5087 | hci_sched_acl_blk(hdev); |
| 5088 | break; |
| 5089 | } |
| 5090 | } |
| 5091 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5092 | /* Schedule SCO */ |
Gustavo Padovan | 6039aa73 | 2012-05-23 04:04:18 -0300 | [diff] [blame] | 5093 | static void hci_sched_sco(struct hci_dev *hdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5094 | { |
| 5095 | struct hci_conn *conn; |
| 5096 | struct sk_buff *skb; |
| 5097 | int quote; |
| 5098 | |
| 5099 | BT_DBG("%s", hdev->name); |
| 5100 | |
Luiz Augusto von Dentz | 52087a7 | 2011-08-17 16:23:00 +0300 | [diff] [blame] | 5101 | if (!hci_conn_num(hdev, SCO_LINK)) |
| 5102 | return; |
| 5103 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5104 | while (hdev->sco_cnt && (conn = hci_low_sent(hdev, SCO_LINK, "e))) { |
| 5105 | while (quote-- && (skb = skb_dequeue(&conn->data_q))) { |
| 5106 | BT_DBG("skb %p len %d", skb, skb->len); |
Marcel Holtmann | 57d17d7 | 2013-10-10 14:54:17 -0700 | [diff] [blame] | 5107 | hci_send_frame(hdev, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5108 | |
| 5109 | conn->sent++; |
| 5110 | if (conn->sent == ~0) |
| 5111 | conn->sent = 0; |
| 5112 | } |
| 5113 | } |
| 5114 | } |
| 5115 | |
Gustavo Padovan | 6039aa73 | 2012-05-23 04:04:18 -0300 | [diff] [blame] | 5116 | static void hci_sched_esco(struct hci_dev *hdev) |
Marcel Holtmann | b6a0dc8 | 2007-10-20 14:55:10 +0200 | [diff] [blame] | 5117 | { |
| 5118 | struct hci_conn *conn; |
| 5119 | struct sk_buff *skb; |
| 5120 | int quote; |
| 5121 | |
| 5122 | BT_DBG("%s", hdev->name); |
| 5123 | |
Luiz Augusto von Dentz | 52087a7 | 2011-08-17 16:23:00 +0300 | [diff] [blame] | 5124 | if (!hci_conn_num(hdev, ESCO_LINK)) |
| 5125 | return; |
| 5126 | |
Gustavo Padovan | 8fc9ced | 2012-05-23 04:04:21 -0300 | [diff] [blame] | 5127 | while (hdev->sco_cnt && (conn = hci_low_sent(hdev, ESCO_LINK, |
| 5128 | "e))) { |
Marcel Holtmann | b6a0dc8 | 2007-10-20 14:55:10 +0200 | [diff] [blame] | 5129 | while (quote-- && (skb = skb_dequeue(&conn->data_q))) { |
| 5130 | BT_DBG("skb %p len %d", skb, skb->len); |
Marcel Holtmann | 57d17d7 | 2013-10-10 14:54:17 -0700 | [diff] [blame] | 5131 | hci_send_frame(hdev, skb); |
Marcel Holtmann | b6a0dc8 | 2007-10-20 14:55:10 +0200 | [diff] [blame] | 5132 | |
| 5133 | conn->sent++; |
| 5134 | if (conn->sent == ~0) |
| 5135 | conn->sent = 0; |
| 5136 | } |
| 5137 | } |
| 5138 | } |
| 5139 | |
Gustavo Padovan | 6039aa73 | 2012-05-23 04:04:18 -0300 | [diff] [blame] | 5140 | static void hci_sched_le(struct hci_dev *hdev) |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 5141 | { |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 5142 | struct hci_chan *chan; |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 5143 | struct sk_buff *skb; |
Luiz Augusto von Dentz | 02b20f0 | 2011-11-02 15:52:03 +0200 | [diff] [blame] | 5144 | int quote, cnt, tmp; |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 5145 | |
| 5146 | BT_DBG("%s", hdev->name); |
| 5147 | |
Luiz Augusto von Dentz | 52087a7 | 2011-08-17 16:23:00 +0300 | [diff] [blame] | 5148 | if (!hci_conn_num(hdev, LE_LINK)) |
| 5149 | return; |
| 5150 | |
Marcel Holtmann | 4a96440 | 2014-07-02 19:10:33 +0200 | [diff] [blame] | 5151 | if (!test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) { |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 5152 | /* LE tx timeout must be longer than maximum |
| 5153 | * link supervision timeout (40.9 seconds) */ |
Ville Tervo | bae1f5d9 | 2011-02-10 22:38:53 -0300 | [diff] [blame] | 5154 | if (!hdev->le_cnt && hdev->le_pkts && |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 5155 | time_after(jiffies, hdev->le_last_tx + HZ * 45)) |
Ville Tervo | bae1f5d9 | 2011-02-10 22:38:53 -0300 | [diff] [blame] | 5156 | hci_link_tx_to(hdev, LE_LINK); |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 5157 | } |
| 5158 | |
| 5159 | cnt = hdev->le_pkts ? hdev->le_cnt : hdev->acl_cnt; |
Luiz Augusto von Dentz | 02b20f0 | 2011-11-02 15:52:03 +0200 | [diff] [blame] | 5160 | tmp = cnt; |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 5161 | while (cnt && (chan = hci_chan_sent(hdev, LE_LINK, "e))) { |
Luiz Augusto von Dentz | ec1cce2 | 2011-11-02 15:52:02 +0200 | [diff] [blame] | 5162 | u32 priority = (skb_peek(&chan->data_q))->priority; |
| 5163 | while (quote-- && (skb = skb_peek(&chan->data_q))) { |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 5164 | BT_DBG("chan %p skb %p len %d priority %u", chan, skb, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 5165 | skb->len, skb->priority); |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 5166 | |
Luiz Augusto von Dentz | ec1cce2 | 2011-11-02 15:52:02 +0200 | [diff] [blame] | 5167 | /* Stop if priority has changed */ |
| 5168 | if (skb->priority < priority) |
| 5169 | break; |
| 5170 | |
| 5171 | skb = skb_dequeue(&chan->data_q); |
| 5172 | |
Marcel Holtmann | 57d17d7 | 2013-10-10 14:54:17 -0700 | [diff] [blame] | 5173 | hci_send_frame(hdev, skb); |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 5174 | hdev->le_last_tx = jiffies; |
| 5175 | |
| 5176 | cnt--; |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 5177 | chan->sent++; |
| 5178 | chan->conn->sent++; |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 5179 | } |
| 5180 | } |
Luiz Augusto von Dentz | 73d80de | 2011-11-02 15:52:01 +0200 | [diff] [blame] | 5181 | |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 5182 | if (hdev->le_pkts) |
| 5183 | hdev->le_cnt = cnt; |
| 5184 | else |
| 5185 | hdev->acl_cnt = cnt; |
Luiz Augusto von Dentz | 02b20f0 | 2011-11-02 15:52:03 +0200 | [diff] [blame] | 5186 | |
| 5187 | if (cnt != tmp) |
| 5188 | hci_prio_recalculate(hdev, LE_LINK); |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 5189 | } |
| 5190 | |
Gustavo F. Padovan | 3eff45e | 2011-12-15 00:50:02 -0200 | [diff] [blame] | 5191 | static void hci_tx_work(struct work_struct *work) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5192 | { |
Gustavo F. Padovan | 3eff45e | 2011-12-15 00:50:02 -0200 | [diff] [blame] | 5193 | struct hci_dev *hdev = container_of(work, struct hci_dev, tx_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5194 | struct sk_buff *skb; |
| 5195 | |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 5196 | BT_DBG("%s acl %d sco %d le %d", hdev->name, hdev->acl_cnt, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 5197 | hdev->sco_cnt, hdev->le_cnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5198 | |
Marcel Holtmann | 52de599 | 2013-09-03 18:08:38 -0700 | [diff] [blame] | 5199 | if (!test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { |
| 5200 | /* Schedule queues and send stuff to HCI driver */ |
| 5201 | hci_sched_acl(hdev); |
| 5202 | hci_sched_sco(hdev); |
| 5203 | hci_sched_esco(hdev); |
| 5204 | hci_sched_le(hdev); |
| 5205 | } |
Ville Tervo | 6ed58ec | 2011-02-10 22:38:48 -0300 | [diff] [blame] | 5206 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5207 | /* Send next queued raw (unknown type) packet */ |
| 5208 | while ((skb = skb_dequeue(&hdev->raw_q))) |
Marcel Holtmann | 57d17d7 | 2013-10-10 14:54:17 -0700 | [diff] [blame] | 5209 | hci_send_frame(hdev, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5210 | } |
| 5211 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 5212 | /* ----- HCI RX task (incoming data processing) ----- */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5213 | |
| 5214 | /* ACL data packet */ |
Gustavo Padovan | 6039aa73 | 2012-05-23 04:04:18 -0300 | [diff] [blame] | 5215 | static void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5216 | { |
| 5217 | struct hci_acl_hdr *hdr = (void *) skb->data; |
| 5218 | struct hci_conn *conn; |
| 5219 | __u16 handle, flags; |
| 5220 | |
| 5221 | skb_pull(skb, HCI_ACL_HDR_SIZE); |
| 5222 | |
| 5223 | handle = __le16_to_cpu(hdr->handle); |
| 5224 | flags = hci_flags(handle); |
| 5225 | handle = hci_handle(handle); |
| 5226 | |
Andrei Emeltchenko | f0e0951 | 2012-06-11 11:13:09 +0300 | [diff] [blame] | 5227 | BT_DBG("%s len %d handle 0x%4.4x flags 0x%4.4x", hdev->name, skb->len, |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 5228 | handle, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5229 | |
| 5230 | hdev->stat.acl_rx++; |
| 5231 | |
| 5232 | hci_dev_lock(hdev); |
| 5233 | conn = hci_conn_hash_lookup_handle(hdev, handle); |
| 5234 | hci_dev_unlock(hdev); |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 5235 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5236 | if (conn) { |
Mat Martineau | 65983fc | 2011-12-13 15:06:02 -0800 | [diff] [blame] | 5237 | hci_conn_enter_active_mode(conn, BT_POWER_FORCE_ACTIVE_OFF); |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 5238 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5239 | /* Send to upper protocol */ |
Ulisses Furquim | 686ebf2 | 2011-12-21 10:11:33 -0200 | [diff] [blame] | 5240 | l2cap_recv_acldata(conn, skb, flags); |
| 5241 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5242 | } else { |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 5243 | BT_ERR("%s ACL packet for unknown connection handle %d", |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 5244 | hdev->name, handle); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5245 | } |
| 5246 | |
| 5247 | kfree_skb(skb); |
| 5248 | } |
| 5249 | |
| 5250 | /* SCO data packet */ |
Gustavo Padovan | 6039aa73 | 2012-05-23 04:04:18 -0300 | [diff] [blame] | 5251 | static void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5252 | { |
| 5253 | struct hci_sco_hdr *hdr = (void *) skb->data; |
| 5254 | struct hci_conn *conn; |
| 5255 | __u16 handle; |
| 5256 | |
| 5257 | skb_pull(skb, HCI_SCO_HDR_SIZE); |
| 5258 | |
| 5259 | handle = __le16_to_cpu(hdr->handle); |
| 5260 | |
Andrei Emeltchenko | f0e0951 | 2012-06-11 11:13:09 +0300 | [diff] [blame] | 5261 | BT_DBG("%s len %d handle 0x%4.4x", hdev->name, skb->len, handle); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5262 | |
| 5263 | hdev->stat.sco_rx++; |
| 5264 | |
| 5265 | hci_dev_lock(hdev); |
| 5266 | conn = hci_conn_hash_lookup_handle(hdev, handle); |
| 5267 | hci_dev_unlock(hdev); |
| 5268 | |
| 5269 | if (conn) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5270 | /* Send to upper protocol */ |
Ulisses Furquim | 686ebf2 | 2011-12-21 10:11:33 -0200 | [diff] [blame] | 5271 | sco_recv_scodata(conn, skb); |
| 5272 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5273 | } else { |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 5274 | BT_ERR("%s SCO packet for unknown connection handle %d", |
Gustavo Padovan | a8c5fb1 | 2012-05-17 00:36:26 -0300 | [diff] [blame] | 5275 | hdev->name, handle); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5276 | } |
| 5277 | |
| 5278 | kfree_skb(skb); |
| 5279 | } |
| 5280 | |
Johan Hedberg | 9238f36 | 2013-03-05 20:37:48 +0200 | [diff] [blame] | 5281 | static bool hci_req_is_complete(struct hci_dev *hdev) |
| 5282 | { |
| 5283 | struct sk_buff *skb; |
| 5284 | |
| 5285 | skb = skb_peek(&hdev->cmd_q); |
| 5286 | if (!skb) |
| 5287 | return true; |
| 5288 | |
| 5289 | return bt_cb(skb)->req.start; |
| 5290 | } |
| 5291 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 5292 | static void hci_resend_last(struct hci_dev *hdev) |
| 5293 | { |
| 5294 | struct hci_command_hdr *sent; |
| 5295 | struct sk_buff *skb; |
| 5296 | u16 opcode; |
| 5297 | |
| 5298 | if (!hdev->sent_cmd) |
| 5299 | return; |
| 5300 | |
| 5301 | sent = (void *) hdev->sent_cmd->data; |
| 5302 | opcode = __le16_to_cpu(sent->opcode); |
| 5303 | if (opcode == HCI_OP_RESET) |
| 5304 | return; |
| 5305 | |
| 5306 | skb = skb_clone(hdev->sent_cmd, GFP_KERNEL); |
| 5307 | if (!skb) |
| 5308 | return; |
| 5309 | |
| 5310 | skb_queue_head(&hdev->cmd_q, skb); |
| 5311 | queue_work(hdev->workqueue, &hdev->cmd_work); |
| 5312 | } |
| 5313 | |
Johan Hedberg | 9238f36 | 2013-03-05 20:37:48 +0200 | [diff] [blame] | 5314 | void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status) |
| 5315 | { |
| 5316 | hci_req_complete_t req_complete = NULL; |
| 5317 | struct sk_buff *skb; |
| 5318 | unsigned long flags; |
| 5319 | |
| 5320 | BT_DBG("opcode 0x%04x status 0x%02x", opcode, status); |
| 5321 | |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 5322 | /* If the completed command doesn't match the last one that was |
| 5323 | * sent we need to do special handling of it. |
Johan Hedberg | 9238f36 | 2013-03-05 20:37:48 +0200 | [diff] [blame] | 5324 | */ |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 5325 | if (!hci_sent_cmd_data(hdev, opcode)) { |
| 5326 | /* Some CSR based controllers generate a spontaneous |
| 5327 | * reset complete event during init and any pending |
| 5328 | * command will never be completed. In such a case we |
| 5329 | * need to resend whatever was the last sent |
| 5330 | * command. |
| 5331 | */ |
| 5332 | if (test_bit(HCI_INIT, &hdev->flags) && opcode == HCI_OP_RESET) |
| 5333 | hci_resend_last(hdev); |
| 5334 | |
Johan Hedberg | 9238f36 | 2013-03-05 20:37:48 +0200 | [diff] [blame] | 5335 | return; |
Johan Hedberg | 42c6b12 | 2013-03-05 20:37:49 +0200 | [diff] [blame] | 5336 | } |
Johan Hedberg | 9238f36 | 2013-03-05 20:37:48 +0200 | [diff] [blame] | 5337 | |
| 5338 | /* If the command succeeded and there's still more commands in |
| 5339 | * this request the request is not yet complete. |
| 5340 | */ |
| 5341 | if (!status && !hci_req_is_complete(hdev)) |
| 5342 | return; |
| 5343 | |
| 5344 | /* If this was the last command in a request the complete |
| 5345 | * callback would be found in hdev->sent_cmd instead of the |
| 5346 | * command queue (hdev->cmd_q). |
| 5347 | */ |
| 5348 | if (hdev->sent_cmd) { |
| 5349 | req_complete = bt_cb(hdev->sent_cmd)->req.complete; |
Johan Hedberg | 53e21fb | 2013-07-27 14:11:14 -0500 | [diff] [blame] | 5350 | |
| 5351 | if (req_complete) { |
| 5352 | /* We must set the complete callback to NULL to |
| 5353 | * avoid calling the callback more than once if |
| 5354 | * this function gets called again. |
| 5355 | */ |
| 5356 | bt_cb(hdev->sent_cmd)->req.complete = NULL; |
| 5357 | |
Johan Hedberg | 9238f36 | 2013-03-05 20:37:48 +0200 | [diff] [blame] | 5358 | goto call_complete; |
Johan Hedberg | 53e21fb | 2013-07-27 14:11:14 -0500 | [diff] [blame] | 5359 | } |
Johan Hedberg | 9238f36 | 2013-03-05 20:37:48 +0200 | [diff] [blame] | 5360 | } |
| 5361 | |
| 5362 | /* Remove all pending commands belonging to this request */ |
| 5363 | spin_lock_irqsave(&hdev->cmd_q.lock, flags); |
| 5364 | while ((skb = __skb_dequeue(&hdev->cmd_q))) { |
| 5365 | if (bt_cb(skb)->req.start) { |
| 5366 | __skb_queue_head(&hdev->cmd_q, skb); |
| 5367 | break; |
| 5368 | } |
| 5369 | |
| 5370 | req_complete = bt_cb(skb)->req.complete; |
| 5371 | kfree_skb(skb); |
| 5372 | } |
| 5373 | spin_unlock_irqrestore(&hdev->cmd_q.lock, flags); |
| 5374 | |
| 5375 | call_complete: |
| 5376 | if (req_complete) |
| 5377 | req_complete(hdev, status); |
| 5378 | } |
| 5379 | |
Marcel Holtmann | b78752c | 2010-08-08 23:06:53 -0400 | [diff] [blame] | 5380 | static void hci_rx_work(struct work_struct *work) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5381 | { |
Marcel Holtmann | b78752c | 2010-08-08 23:06:53 -0400 | [diff] [blame] | 5382 | struct hci_dev *hdev = container_of(work, struct hci_dev, rx_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5383 | struct sk_buff *skb; |
| 5384 | |
| 5385 | BT_DBG("%s", hdev->name); |
| 5386 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5387 | while ((skb = skb_dequeue(&hdev->rx_q))) { |
Marcel Holtmann | cd82e61 | 2012-02-20 20:34:38 +0100 | [diff] [blame] | 5388 | /* Send copy to monitor */ |
| 5389 | hci_send_to_monitor(hdev, skb); |
| 5390 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5391 | if (atomic_read(&hdev->promisc)) { |
| 5392 | /* Send copy to the sockets */ |
Marcel Holtmann | 470fe1b | 2012-02-20 14:50:30 +0100 | [diff] [blame] | 5393 | hci_send_to_sock(hdev, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5394 | } |
| 5395 | |
Marcel Holtmann | fee746b | 2014-06-29 12:13:05 +0200 | [diff] [blame] | 5396 | if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5397 | kfree_skb(skb); |
| 5398 | continue; |
| 5399 | } |
| 5400 | |
| 5401 | if (test_bit(HCI_INIT, &hdev->flags)) { |
| 5402 | /* Don't process data packets in this states. */ |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 5403 | switch (bt_cb(skb)->pkt_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5404 | case HCI_ACLDATA_PKT: |
| 5405 | case HCI_SCODATA_PKT: |
| 5406 | kfree_skb(skb); |
| 5407 | continue; |
Stephen Hemminger | 3ff50b7 | 2007-04-20 17:09:22 -0700 | [diff] [blame] | 5408 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5409 | } |
| 5410 | |
| 5411 | /* Process frame */ |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 5412 | switch (bt_cb(skb)->pkt_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5413 | case HCI_EVENT_PKT: |
Marcel Holtmann | b78752c | 2010-08-08 23:06:53 -0400 | [diff] [blame] | 5414 | BT_DBG("%s Event packet", hdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5415 | hci_event_packet(hdev, skb); |
| 5416 | break; |
| 5417 | |
| 5418 | case HCI_ACLDATA_PKT: |
| 5419 | BT_DBG("%s ACL data packet", hdev->name); |
| 5420 | hci_acldata_packet(hdev, skb); |
| 5421 | break; |
| 5422 | |
| 5423 | case HCI_SCODATA_PKT: |
| 5424 | BT_DBG("%s SCO data packet", hdev->name); |
| 5425 | hci_scodata_packet(hdev, skb); |
| 5426 | break; |
| 5427 | |
| 5428 | default: |
| 5429 | kfree_skb(skb); |
| 5430 | break; |
| 5431 | } |
| 5432 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5433 | } |
| 5434 | |
Gustavo F. Padovan | c347b76 | 2011-12-14 23:53:47 -0200 | [diff] [blame] | 5435 | static void hci_cmd_work(struct work_struct *work) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5436 | { |
Gustavo F. Padovan | c347b76 | 2011-12-14 23:53:47 -0200 | [diff] [blame] | 5437 | struct hci_dev *hdev = container_of(work, struct hci_dev, cmd_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5438 | struct sk_buff *skb; |
| 5439 | |
Andrei Emeltchenko | 2104786 | 2012-07-10 15:27:47 +0300 | [diff] [blame] | 5440 | BT_DBG("%s cmd_cnt %d cmd queued %d", hdev->name, |
| 5441 | atomic_read(&hdev->cmd_cnt), skb_queue_len(&hdev->cmd_q)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5442 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5443 | /* Send queued commands */ |
Andrei Emeltchenko | 5a08ecc | 2011-01-11 17:20:20 +0200 | [diff] [blame] | 5444 | if (atomic_read(&hdev->cmd_cnt)) { |
| 5445 | skb = skb_dequeue(&hdev->cmd_q); |
| 5446 | if (!skb) |
| 5447 | return; |
| 5448 | |
Wei Yongjun | 7585b97 | 2009-02-25 18:29:52 +0800 | [diff] [blame] | 5449 | kfree_skb(hdev->sent_cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5450 | |
Marcel Holtmann | a675d7f | 2013-09-03 18:11:07 -0700 | [diff] [blame] | 5451 | hdev->sent_cmd = skb_clone(skb, GFP_KERNEL); |
Andrei Emeltchenko | 70f23020 | 2010-12-01 16:58:25 +0200 | [diff] [blame] | 5452 | if (hdev->sent_cmd) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5453 | atomic_dec(&hdev->cmd_cnt); |
Marcel Holtmann | 57d17d7 | 2013-10-10 14:54:17 -0700 | [diff] [blame] | 5454 | hci_send_frame(hdev, skb); |
Szymon Janc | 7bdb8a5 | 2011-07-26 22:46:54 +0200 | [diff] [blame] | 5455 | if (test_bit(HCI_RESET, &hdev->flags)) |
Marcel Holtmann | 65cc2b4 | 2014-06-16 12:30:56 +0200 | [diff] [blame] | 5456 | cancel_delayed_work(&hdev->cmd_timer); |
Szymon Janc | 7bdb8a5 | 2011-07-26 22:46:54 +0200 | [diff] [blame] | 5457 | else |
Marcel Holtmann | 65cc2b4 | 2014-06-16 12:30:56 +0200 | [diff] [blame] | 5458 | schedule_delayed_work(&hdev->cmd_timer, |
| 5459 | HCI_CMD_TIMEOUT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5460 | } else { |
| 5461 | skb_queue_head(&hdev->cmd_q, skb); |
Gustavo F. Padovan | c347b76 | 2011-12-14 23:53:47 -0200 | [diff] [blame] | 5462 | queue_work(hdev->workqueue, &hdev->cmd_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5463 | } |
| 5464 | } |
| 5465 | } |
Andre Guedes | b1efcc2 | 2014-02-26 20:21:40 -0300 | [diff] [blame] | 5466 | |
| 5467 | void hci_req_add_le_scan_disable(struct hci_request *req) |
| 5468 | { |
| 5469 | struct hci_cp_le_set_scan_enable cp; |
| 5470 | |
| 5471 | memset(&cp, 0, sizeof(cp)); |
| 5472 | cp.enable = LE_SCAN_DISABLE; |
| 5473 | hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp); |
| 5474 | } |
Andre Guedes | a4790db | 2014-02-26 20:21:47 -0300 | [diff] [blame] | 5475 | |
Marcel Holtmann | 8540f6c | 2014-07-24 15:20:57 +0200 | [diff] [blame] | 5476 | static void add_to_white_list(struct hci_request *req, |
| 5477 | struct hci_conn_params *params) |
| 5478 | { |
| 5479 | struct hci_cp_le_add_to_white_list cp; |
| 5480 | |
| 5481 | cp.bdaddr_type = params->addr_type; |
| 5482 | bacpy(&cp.bdaddr, ¶ms->addr); |
| 5483 | |
| 5484 | hci_req_add(req, HCI_OP_LE_ADD_TO_WHITE_LIST, sizeof(cp), &cp); |
| 5485 | } |
| 5486 | |
| 5487 | static u8 update_white_list(struct hci_request *req) |
| 5488 | { |
| 5489 | struct hci_dev *hdev = req->hdev; |
| 5490 | struct hci_conn_params *params; |
| 5491 | struct bdaddr_list *b; |
| 5492 | uint8_t white_list_entries = 0; |
| 5493 | |
| 5494 | /* Go through the current white list programmed into the |
| 5495 | * controller one by one and check if that address is still |
| 5496 | * in the list of pending connections or list of devices to |
| 5497 | * report. If not present in either list, then queue the |
| 5498 | * command to remove it from the controller. |
| 5499 | */ |
| 5500 | list_for_each_entry(b, &hdev->le_white_list, list) { |
| 5501 | struct hci_cp_le_del_from_white_list cp; |
| 5502 | |
| 5503 | if (hci_pend_le_action_lookup(&hdev->pend_le_conns, |
| 5504 | &b->bdaddr, b->bdaddr_type) || |
| 5505 | hci_pend_le_action_lookup(&hdev->pend_le_reports, |
| 5506 | &b->bdaddr, b->bdaddr_type)) { |
| 5507 | white_list_entries++; |
| 5508 | continue; |
| 5509 | } |
| 5510 | |
| 5511 | cp.bdaddr_type = b->bdaddr_type; |
| 5512 | bacpy(&cp.bdaddr, &b->bdaddr); |
| 5513 | |
| 5514 | hci_req_add(req, HCI_OP_LE_DEL_FROM_WHITE_LIST, |
| 5515 | sizeof(cp), &cp); |
| 5516 | } |
| 5517 | |
| 5518 | /* Since all no longer valid white list entries have been |
| 5519 | * removed, walk through the list of pending connections |
| 5520 | * and ensure that any new device gets programmed into |
| 5521 | * the controller. |
| 5522 | * |
| 5523 | * If the list of the devices is larger than the list of |
| 5524 | * available white list entries in the controller, then |
| 5525 | * just abort and return filer policy value to not use the |
| 5526 | * white list. |
| 5527 | */ |
| 5528 | list_for_each_entry(params, &hdev->pend_le_conns, action) { |
| 5529 | if (hci_bdaddr_list_lookup(&hdev->le_white_list, |
| 5530 | ¶ms->addr, params->addr_type)) |
| 5531 | continue; |
| 5532 | |
| 5533 | if (white_list_entries >= hdev->le_white_list_size) { |
| 5534 | /* Select filter policy to accept all advertising */ |
| 5535 | return 0x00; |
| 5536 | } |
| 5537 | |
Marcel Holtmann | 66d8e83 | 2014-07-24 15:20:58 +0200 | [diff] [blame] | 5538 | if (hci_find_irk_by_addr(hdev, ¶ms->addr, |
| 5539 | params->addr_type)) { |
| 5540 | /* White list can not be used with RPAs */ |
| 5541 | return 0x00; |
| 5542 | } |
| 5543 | |
Marcel Holtmann | 8540f6c | 2014-07-24 15:20:57 +0200 | [diff] [blame] | 5544 | white_list_entries++; |
| 5545 | add_to_white_list(req, params); |
| 5546 | } |
| 5547 | |
| 5548 | /* After adding all new pending connections, walk through |
| 5549 | * the list of pending reports and also add these to the |
| 5550 | * white list if there is still space. |
| 5551 | */ |
| 5552 | list_for_each_entry(params, &hdev->pend_le_reports, action) { |
| 5553 | if (hci_bdaddr_list_lookup(&hdev->le_white_list, |
| 5554 | ¶ms->addr, params->addr_type)) |
| 5555 | continue; |
| 5556 | |
| 5557 | if (white_list_entries >= hdev->le_white_list_size) { |
| 5558 | /* Select filter policy to accept all advertising */ |
| 5559 | return 0x00; |
| 5560 | } |
| 5561 | |
Marcel Holtmann | 66d8e83 | 2014-07-24 15:20:58 +0200 | [diff] [blame] | 5562 | if (hci_find_irk_by_addr(hdev, ¶ms->addr, |
| 5563 | params->addr_type)) { |
| 5564 | /* White list can not be used with RPAs */ |
| 5565 | return 0x00; |
| 5566 | } |
| 5567 | |
Marcel Holtmann | 8540f6c | 2014-07-24 15:20:57 +0200 | [diff] [blame] | 5568 | white_list_entries++; |
| 5569 | add_to_white_list(req, params); |
| 5570 | } |
| 5571 | |
| 5572 | /* Select filter policy to use white list */ |
| 5573 | return 0x01; |
| 5574 | } |
| 5575 | |
Andre Guedes | 8ef30fd | 2014-02-26 20:21:55 -0300 | [diff] [blame] | 5576 | void hci_req_add_le_passive_scan(struct hci_request *req) |
| 5577 | { |
| 5578 | struct hci_cp_le_set_scan_param param_cp; |
| 5579 | struct hci_cp_le_set_scan_enable enable_cp; |
| 5580 | struct hci_dev *hdev = req->hdev; |
| 5581 | u8 own_addr_type; |
Marcel Holtmann | 8540f6c | 2014-07-24 15:20:57 +0200 | [diff] [blame] | 5582 | u8 filter_policy; |
Andre Guedes | 8ef30fd | 2014-02-26 20:21:55 -0300 | [diff] [blame] | 5583 | |
Marcel Holtmann | 6ab535a | 2014-06-29 12:20:15 +0200 | [diff] [blame] | 5584 | /* Set require_privacy to false since no SCAN_REQ are send |
| 5585 | * during passive scanning. Not using an unresolvable address |
| 5586 | * here is important so that peer devices using direct |
| 5587 | * advertising with our address will be correctly reported |
| 5588 | * by the controller. |
Andre Guedes | 8ef30fd | 2014-02-26 20:21:55 -0300 | [diff] [blame] | 5589 | */ |
Marcel Holtmann | 6ab535a | 2014-06-29 12:20:15 +0200 | [diff] [blame] | 5590 | if (hci_update_random_address(req, false, &own_addr_type)) |
Andre Guedes | 8ef30fd | 2014-02-26 20:21:55 -0300 | [diff] [blame] | 5591 | return; |
| 5592 | |
Marcel Holtmann | 8540f6c | 2014-07-24 15:20:57 +0200 | [diff] [blame] | 5593 | /* Adding or removing entries from the white list must |
| 5594 | * happen before enabling scanning. The controller does |
| 5595 | * not allow white list modification while scanning. |
| 5596 | */ |
| 5597 | filter_policy = update_white_list(req); |
| 5598 | |
Andre Guedes | 8ef30fd | 2014-02-26 20:21:55 -0300 | [diff] [blame] | 5599 | memset(¶m_cp, 0, sizeof(param_cp)); |
| 5600 | param_cp.type = LE_SCAN_PASSIVE; |
| 5601 | param_cp.interval = cpu_to_le16(hdev->le_scan_interval); |
| 5602 | param_cp.window = cpu_to_le16(hdev->le_scan_window); |
| 5603 | param_cp.own_address_type = own_addr_type; |
Marcel Holtmann | 8540f6c | 2014-07-24 15:20:57 +0200 | [diff] [blame] | 5604 | param_cp.filter_policy = filter_policy; |
Andre Guedes | 8ef30fd | 2014-02-26 20:21:55 -0300 | [diff] [blame] | 5605 | hci_req_add(req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp), |
| 5606 | ¶m_cp); |
| 5607 | |
| 5608 | memset(&enable_cp, 0, sizeof(enable_cp)); |
| 5609 | enable_cp.enable = LE_SCAN_ENABLE; |
Andre Guedes | 4340a12 | 2014-03-10 18:26:24 -0300 | [diff] [blame] | 5610 | enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE; |
Andre Guedes | 8ef30fd | 2014-02-26 20:21:55 -0300 | [diff] [blame] | 5611 | hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(enable_cp), |
| 5612 | &enable_cp); |
| 5613 | } |
| 5614 | |
Andre Guedes | a4790db | 2014-02-26 20:21:47 -0300 | [diff] [blame] | 5615 | static void update_background_scan_complete(struct hci_dev *hdev, u8 status) |
| 5616 | { |
| 5617 | if (status) |
| 5618 | BT_DBG("HCI request failed to update background scanning: " |
| 5619 | "status 0x%2.2x", status); |
| 5620 | } |
| 5621 | |
| 5622 | /* This function controls the background scanning based on hdev->pend_le_conns |
| 5623 | * list. If there are pending LE connection we start the background scanning, |
| 5624 | * otherwise we stop it. |
| 5625 | * |
| 5626 | * This function requires the caller holds hdev->lock. |
| 5627 | */ |
| 5628 | void hci_update_background_scan(struct hci_dev *hdev) |
| 5629 | { |
Andre Guedes | a4790db | 2014-02-26 20:21:47 -0300 | [diff] [blame] | 5630 | struct hci_request req; |
| 5631 | struct hci_conn *conn; |
| 5632 | int err; |
| 5633 | |
Marcel Holtmann | c20c02d | 2014-06-30 16:04:12 +0200 | [diff] [blame] | 5634 | if (!test_bit(HCI_UP, &hdev->flags) || |
| 5635 | test_bit(HCI_INIT, &hdev->flags) || |
| 5636 | test_bit(HCI_SETUP, &hdev->dev_flags) || |
Marcel Holtmann | d603b76 | 2014-07-06 12:11:14 +0200 | [diff] [blame] | 5637 | test_bit(HCI_CONFIG, &hdev->dev_flags) || |
Marcel Holtmann | b822177 | 2014-07-01 19:28:23 +0200 | [diff] [blame] | 5638 | test_bit(HCI_AUTO_OFF, &hdev->dev_flags) || |
Marcel Holtmann | c20c02d | 2014-06-30 16:04:12 +0200 | [diff] [blame] | 5639 | test_bit(HCI_UNREGISTER, &hdev->dev_flags)) |
Marcel Holtmann | 1c1697c | 2014-06-29 13:41:51 +0200 | [diff] [blame] | 5640 | return; |
| 5641 | |
Johan Hedberg | a70f4b5 | 2014-07-07 15:19:50 +0300 | [diff] [blame] | 5642 | /* No point in doing scanning if LE support hasn't been enabled */ |
| 5643 | if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) |
| 5644 | return; |
| 5645 | |
Johan Hedberg | ae23ada | 2014-07-07 13:24:59 +0300 | [diff] [blame] | 5646 | /* If discovery is active don't interfere with it */ |
| 5647 | if (hdev->discovery.state != DISCOVERY_STOPPED) |
| 5648 | return; |
| 5649 | |
Andre Guedes | a4790db | 2014-02-26 20:21:47 -0300 | [diff] [blame] | 5650 | hci_req_init(&req, hdev); |
| 5651 | |
Johan Hedberg | d1d588c | 2014-07-20 17:10:45 +0300 | [diff] [blame] | 5652 | if (list_empty(&hdev->pend_le_conns) && |
Johan Hedberg | 66f8455 | 2014-07-04 12:37:18 +0300 | [diff] [blame] | 5653 | list_empty(&hdev->pend_le_reports)) { |
Johan Hedberg | 0d2bf13 | 2014-07-02 22:42:02 +0300 | [diff] [blame] | 5654 | /* If there is no pending LE connections or devices |
| 5655 | * to be scanned for, we should stop the background |
| 5656 | * scanning. |
Andre Guedes | a4790db | 2014-02-26 20:21:47 -0300 | [diff] [blame] | 5657 | */ |
| 5658 | |
| 5659 | /* If controller is not scanning we are done. */ |
| 5660 | if (!test_bit(HCI_LE_SCAN, &hdev->dev_flags)) |
| 5661 | return; |
| 5662 | |
| 5663 | hci_req_add_le_scan_disable(&req); |
| 5664 | |
| 5665 | BT_DBG("%s stopping background scanning", hdev->name); |
| 5666 | } else { |
Andre Guedes | a4790db | 2014-02-26 20:21:47 -0300 | [diff] [blame] | 5667 | /* If there is at least one pending LE connection, we should |
| 5668 | * keep the background scan running. |
| 5669 | */ |
| 5670 | |
Andre Guedes | a4790db | 2014-02-26 20:21:47 -0300 | [diff] [blame] | 5671 | /* If controller is connecting, we should not start scanning |
| 5672 | * since some controllers are not able to scan and connect at |
| 5673 | * the same time. |
| 5674 | */ |
| 5675 | conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); |
| 5676 | if (conn) |
| 5677 | return; |
| 5678 | |
Andre Guedes | 4340a12 | 2014-03-10 18:26:24 -0300 | [diff] [blame] | 5679 | /* If controller is currently scanning, we stop it to ensure we |
| 5680 | * don't miss any advertising (due to duplicates filter). |
| 5681 | */ |
| 5682 | if (test_bit(HCI_LE_SCAN, &hdev->dev_flags)) |
| 5683 | hci_req_add_le_scan_disable(&req); |
| 5684 | |
Andre Guedes | 8ef30fd | 2014-02-26 20:21:55 -0300 | [diff] [blame] | 5685 | hci_req_add_le_passive_scan(&req); |
Andre Guedes | a4790db | 2014-02-26 20:21:47 -0300 | [diff] [blame] | 5686 | |
| 5687 | BT_DBG("%s starting background scanning", hdev->name); |
| 5688 | } |
| 5689 | |
| 5690 | err = hci_req_run(&req, update_background_scan_complete); |
| 5691 | if (err) |
| 5692 | BT_ERR("Failed to run HCI request: err %d", err); |
| 5693 | } |
Johan Hedberg | 432df05 | 2014-08-01 11:13:31 +0300 | [diff] [blame] | 5694 | |
Johan Hedberg | 22f433d | 2014-08-01 11:13:32 +0300 | [diff] [blame] | 5695 | static bool disconnected_whitelist_entries(struct hci_dev *hdev) |
| 5696 | { |
| 5697 | struct bdaddr_list *b; |
| 5698 | |
| 5699 | list_for_each_entry(b, &hdev->whitelist, list) { |
| 5700 | struct hci_conn *conn; |
| 5701 | |
| 5702 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &b->bdaddr); |
| 5703 | if (!conn) |
| 5704 | return true; |
| 5705 | |
| 5706 | if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG) |
| 5707 | return true; |
| 5708 | } |
| 5709 | |
| 5710 | return false; |
| 5711 | } |
| 5712 | |
Johan Hedberg | 432df05 | 2014-08-01 11:13:31 +0300 | [diff] [blame] | 5713 | void hci_update_page_scan(struct hci_dev *hdev, struct hci_request *req) |
| 5714 | { |
| 5715 | u8 scan; |
| 5716 | |
| 5717 | if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) |
| 5718 | return; |
| 5719 | |
| 5720 | if (!hdev_is_powered(hdev)) |
| 5721 | return; |
| 5722 | |
| 5723 | if (mgmt_powering_down(hdev)) |
| 5724 | return; |
| 5725 | |
| 5726 | if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags) || |
Johan Hedberg | 22f433d | 2014-08-01 11:13:32 +0300 | [diff] [blame] | 5727 | disconnected_whitelist_entries(hdev)) |
Johan Hedberg | 432df05 | 2014-08-01 11:13:31 +0300 | [diff] [blame] | 5728 | scan = SCAN_PAGE; |
| 5729 | else |
| 5730 | scan = SCAN_DISABLED; |
| 5731 | |
| 5732 | if (test_bit(HCI_PSCAN, &hdev->flags) == !!(scan & SCAN_PAGE)) |
| 5733 | return; |
| 5734 | |
| 5735 | if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) |
| 5736 | scan |= SCAN_INQUIRY; |
| 5737 | |
| 5738 | if (req) |
| 5739 | hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); |
| 5740 | else |
| 5741 | hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); |
| 5742 | } |