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 |
| 4 | |
| 5 | Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License version 2 as |
| 9 | published by the Free Software Foundation; |
| 10 | |
| 11 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 12 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 13 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. |
| 14 | 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] | 15 | CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES |
| 16 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 17 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 19 | |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 20 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
| 21 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | SOFTWARE IS DISCLAIMED. |
| 23 | */ |
| 24 | |
| 25 | /* Bluetooth address family and sockets. */ |
| 26 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #include <linux/module.h> |
Marcel Holtmann | 3241ad8 | 2008-07-14 20:13:50 +0200 | [diff] [blame] | 28 | #include <asm/ioctls.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | |
| 30 | #include <net/bluetooth/bluetooth.h> |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 31 | #include <linux/proc_fs.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | |
Gustavo F. Padovan | 6427451 | 2011-02-07 20:08:52 -0200 | [diff] [blame] | 33 | #define VERSION "2.16" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | |
| 35 | /* Bluetooth sockets */ |
| 36 | #define BT_MAX_PROTO 8 |
Stephen Hemminger | ec1b4cf | 2009-10-05 05:58:39 +0000 | [diff] [blame] | 37 | static const struct net_proto_family *bt_proto[BT_MAX_PROTO]; |
Marcel Holtmann | db7aa1c | 2008-11-30 12:17:19 +0100 | [diff] [blame] | 38 | static DEFINE_RWLOCK(bt_proto_lock); |
Dave Young | 68845cb | 2008-04-01 23:58:35 -0700 | [diff] [blame] | 39 | |
Dave Young | 68845cb | 2008-04-01 23:58:35 -0700 | [diff] [blame] | 40 | static struct lock_class_key bt_lock_key[BT_MAX_PROTO]; |
Jan Engelhardt | 36cbd3d | 2009-08-05 10:42:58 -0700 | [diff] [blame] | 41 | static const char *const bt_key_strings[BT_MAX_PROTO] = { |
Dave Young | 68845cb | 2008-04-01 23:58:35 -0700 | [diff] [blame] | 42 | "sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP", |
| 43 | "sk_lock-AF_BLUETOOTH-BTPROTO_HCI", |
| 44 | "sk_lock-AF_BLUETOOTH-BTPROTO_SCO", |
| 45 | "sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM", |
| 46 | "sk_lock-AF_BLUETOOTH-BTPROTO_BNEP", |
| 47 | "sk_lock-AF_BLUETOOTH-BTPROTO_CMTP", |
| 48 | "sk_lock-AF_BLUETOOTH-BTPROTO_HIDP", |
| 49 | "sk_lock-AF_BLUETOOTH-BTPROTO_AVDTP", |
| 50 | }; |
| 51 | |
Marcel Holtmann | db7aa1c | 2008-11-30 12:17:19 +0100 | [diff] [blame] | 52 | static struct lock_class_key bt_slock_key[BT_MAX_PROTO]; |
Jan Engelhardt | 36cbd3d | 2009-08-05 10:42:58 -0700 | [diff] [blame] | 53 | static const char *const bt_slock_key_strings[BT_MAX_PROTO] = { |
Dave Young | 68845cb | 2008-04-01 23:58:35 -0700 | [diff] [blame] | 54 | "slock-AF_BLUETOOTH-BTPROTO_L2CAP", |
| 55 | "slock-AF_BLUETOOTH-BTPROTO_HCI", |
| 56 | "slock-AF_BLUETOOTH-BTPROTO_SCO", |
| 57 | "slock-AF_BLUETOOTH-BTPROTO_RFCOMM", |
| 58 | "slock-AF_BLUETOOTH-BTPROTO_BNEP", |
| 59 | "slock-AF_BLUETOOTH-BTPROTO_CMTP", |
| 60 | "slock-AF_BLUETOOTH-BTPROTO_HIDP", |
| 61 | "slock-AF_BLUETOOTH-BTPROTO_AVDTP", |
| 62 | }; |
Marcel Holtmann | db7aa1c | 2008-11-30 12:17:19 +0100 | [diff] [blame] | 63 | |
Octavian Purdila | b5a30dd | 2012-01-22 00:28:34 +0200 | [diff] [blame] | 64 | void bt_sock_reclassify_lock(struct sock *sk, int proto) |
Marcel Holtmann | db7aa1c | 2008-11-30 12:17:19 +0100 | [diff] [blame] | 65 | { |
Octavian Purdila | b5a30dd | 2012-01-22 00:28:34 +0200 | [diff] [blame] | 66 | BUG_ON(!sk); |
Marcel Holtmann | db7aa1c | 2008-11-30 12:17:19 +0100 | [diff] [blame] | 67 | BUG_ON(sock_owned_by_user(sk)); |
| 68 | |
| 69 | sock_lock_init_class_and_name(sk, |
| 70 | bt_slock_key_strings[proto], &bt_slock_key[proto], |
| 71 | bt_key_strings[proto], &bt_lock_key[proto]); |
| 72 | } |
Octavian Purdila | b5a30dd | 2012-01-22 00:28:34 +0200 | [diff] [blame] | 73 | EXPORT_SYMBOL(bt_sock_reclassify_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | |
Stephen Hemminger | ec1b4cf | 2009-10-05 05:58:39 +0000 | [diff] [blame] | 75 | int bt_sock_register(int proto, const struct net_proto_family *ops) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | { |
Marcel Holtmann | 74da626 | 2006-10-15 17:31:14 +0200 | [diff] [blame] | 77 | int err = 0; |
| 78 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | if (proto < 0 || proto >= BT_MAX_PROTO) |
| 80 | return -EINVAL; |
| 81 | |
Marcel Holtmann | 74da626 | 2006-10-15 17:31:14 +0200 | [diff] [blame] | 82 | write_lock(&bt_proto_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | |
Marcel Holtmann | 74da626 | 2006-10-15 17:31:14 +0200 | [diff] [blame] | 84 | if (bt_proto[proto]) |
| 85 | err = -EEXIST; |
| 86 | else |
| 87 | bt_proto[proto] = ops; |
| 88 | |
| 89 | write_unlock(&bt_proto_lock); |
| 90 | |
| 91 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | } |
| 93 | EXPORT_SYMBOL(bt_sock_register); |
| 94 | |
David Herrmann | be9f97f | 2013-02-24 19:36:52 +0100 | [diff] [blame] | 95 | void bt_sock_unregister(int proto) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | { |
| 97 | if (proto < 0 || proto >= BT_MAX_PROTO) |
David Herrmann | be9f97f | 2013-02-24 19:36:52 +0100 | [diff] [blame] | 98 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | |
Marcel Holtmann | 74da626 | 2006-10-15 17:31:14 +0200 | [diff] [blame] | 100 | write_lock(&bt_proto_lock); |
David Herrmann | be9f97f | 2013-02-24 19:36:52 +0100 | [diff] [blame] | 101 | bt_proto[proto] = NULL; |
Marcel Holtmann | 74da626 | 2006-10-15 17:31:14 +0200 | [diff] [blame] | 102 | write_unlock(&bt_proto_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | } |
| 104 | EXPORT_SYMBOL(bt_sock_unregister); |
| 105 | |
Eric Paris | 3f378b6 | 2009-11-05 22:18:14 -0800 | [diff] [blame] | 106 | static int bt_sock_create(struct net *net, struct socket *sock, int proto, |
| 107 | int kern) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | { |
Marcel Holtmann | 74da626 | 2006-10-15 17:31:14 +0200 | [diff] [blame] | 109 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | |
Eric W. Biederman | 1b8d7ae | 2007-10-08 23:24:22 -0700 | [diff] [blame] | 111 | if (net != &init_net) |
| 112 | return -EAFNOSUPPORT; |
| 113 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | if (proto < 0 || proto >= BT_MAX_PROTO) |
| 115 | return -EINVAL; |
| 116 | |
Johannes Berg | 95a5afc | 2008-10-16 15:24:51 -0700 | [diff] [blame] | 117 | if (!bt_proto[proto]) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | request_module("bt-proto-%d", proto); |
Marcel Holtmann | 74da626 | 2006-10-15 17:31:14 +0200 | [diff] [blame] | 119 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | err = -EPROTONOSUPPORT; |
Marcel Holtmann | 74da626 | 2006-10-15 17:31:14 +0200 | [diff] [blame] | 121 | |
| 122 | read_lock(&bt_proto_lock); |
| 123 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | if (bt_proto[proto] && try_module_get(bt_proto[proto]->owner)) { |
Eric Paris | 3f378b6 | 2009-11-05 22:18:14 -0800 | [diff] [blame] | 125 | err = bt_proto[proto]->create(net, sock, proto, kern); |
Octavian Purdila | b5a30dd | 2012-01-22 00:28:34 +0200 | [diff] [blame] | 126 | if (!err) |
| 127 | bt_sock_reclassify_lock(sock->sk, proto); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | module_put(bt_proto[proto]->owner); |
| 129 | } |
Marcel Holtmann | 74da626 | 2006-10-15 17:31:14 +0200 | [diff] [blame] | 130 | |
| 131 | read_unlock(&bt_proto_lock); |
| 132 | |
YOSHIFUJI Hideaki | 8e87d14 | 2007-02-09 23:24:33 +0900 | [diff] [blame] | 133 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | } |
| 135 | |
| 136 | void bt_sock_link(struct bt_sock_list *l, struct sock *sk) |
| 137 | { |
Gustavo F. Padovan | 94f5bfb | 2011-12-27 15:28:48 -0200 | [diff] [blame] | 138 | write_lock(&l->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | sk_add_node(sk, &l->head); |
Gustavo F. Padovan | 94f5bfb | 2011-12-27 15:28:48 -0200 | [diff] [blame] | 140 | write_unlock(&l->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | } |
| 142 | EXPORT_SYMBOL(bt_sock_link); |
| 143 | |
| 144 | void bt_sock_unlink(struct bt_sock_list *l, struct sock *sk) |
| 145 | { |
Gustavo F. Padovan | 94f5bfb | 2011-12-27 15:28:48 -0200 | [diff] [blame] | 146 | write_lock(&l->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | sk_del_node_init(sk); |
Gustavo F. Padovan | 94f5bfb | 2011-12-27 15:28:48 -0200 | [diff] [blame] | 148 | write_unlock(&l->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | } |
| 150 | EXPORT_SYMBOL(bt_sock_unlink); |
| 151 | |
| 152 | void bt_accept_enqueue(struct sock *parent, struct sock *sk) |
| 153 | { |
| 154 | BT_DBG("parent %p, sk %p", parent, sk); |
| 155 | |
| 156 | sock_hold(sk); |
| 157 | list_add_tail(&bt_sk(sk)->accept_q, &bt_sk(parent)->accept_q); |
| 158 | bt_sk(sk)->parent = parent; |
| 159 | parent->sk_ack_backlog++; |
| 160 | } |
| 161 | EXPORT_SYMBOL(bt_accept_enqueue); |
| 162 | |
| 163 | void bt_accept_unlink(struct sock *sk) |
| 164 | { |
| 165 | BT_DBG("sk %p state %d", sk, sk->sk_state); |
| 166 | |
| 167 | list_del_init(&bt_sk(sk)->accept_q); |
| 168 | bt_sk(sk)->parent->sk_ack_backlog--; |
| 169 | bt_sk(sk)->parent = NULL; |
| 170 | sock_put(sk); |
| 171 | } |
| 172 | EXPORT_SYMBOL(bt_accept_unlink); |
| 173 | |
| 174 | struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock) |
| 175 | { |
| 176 | struct list_head *p, *n; |
| 177 | struct sock *sk; |
| 178 | |
| 179 | BT_DBG("parent %p", parent); |
| 180 | |
| 181 | list_for_each_safe(p, n, &bt_sk(parent)->accept_q) { |
| 182 | sk = (struct sock *) list_entry(p, struct bt_sock, accept_q); |
| 183 | |
Gustavo F. Padovan | 8a154a8 | 2011-12-20 17:15:56 -0200 | [diff] [blame] | 184 | lock_sock(sk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | |
| 186 | /* FIXME: Is this check still needed */ |
| 187 | if (sk->sk_state == BT_CLOSED) { |
Gustavo F. Padovan | 8a154a8 | 2011-12-20 17:15:56 -0200 | [diff] [blame] | 188 | release_sock(sk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | bt_accept_unlink(sk); |
| 190 | continue; |
| 191 | } |
| 192 | |
Marcel Holtmann | c4f912e | 2009-01-15 21:52:16 +0100 | [diff] [blame] | 193 | if (sk->sk_state == BT_CONNECTED || !newsock || |
Vinicius Costa Gomes | d060991 | 2012-05-31 22:53:39 -0300 | [diff] [blame] | 194 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(parent)->flags)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | bt_accept_unlink(sk); |
| 196 | if (newsock) |
| 197 | sock_graft(sk, newsock); |
Andrei Emeltchenko | d37f50e | 2011-01-24 10:53:24 +0200 | [diff] [blame] | 198 | |
Gustavo F. Padovan | 8a154a8 | 2011-12-20 17:15:56 -0200 | [diff] [blame] | 199 | release_sock(sk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | return sk; |
| 201 | } |
| 202 | |
Gustavo F. Padovan | 8a154a8 | 2011-12-20 17:15:56 -0200 | [diff] [blame] | 203 | release_sock(sk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | } |
Andrei Emeltchenko | d37f50e | 2011-01-24 10:53:24 +0200 | [diff] [blame] | 205 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | return NULL; |
| 207 | } |
| 208 | EXPORT_SYMBOL(bt_accept_dequeue); |
| 209 | |
| 210 | int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, |
Marcel Holtmann | c4f912e | 2009-01-15 21:52:16 +0100 | [diff] [blame] | 211 | struct msghdr *msg, size_t len, int flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | { |
| 213 | int noblock = flags & MSG_DONTWAIT; |
| 214 | struct sock *sk = sock->sk; |
| 215 | struct sk_buff *skb; |
| 216 | size_t copied; |
| 217 | int err; |
| 218 | |
Marcel Holtmann | a418b89 | 2008-11-30 12:17:28 +0100 | [diff] [blame] | 219 | BT_DBG("sock %p sk %p len %zu", sock, sk, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | |
| 221 | if (flags & (MSG_OOB)) |
| 222 | return -EOPNOTSUPP; |
| 223 | |
Andrei Emeltchenko | 5a08ecc | 2011-01-11 17:20:20 +0200 | [diff] [blame] | 224 | skb = skb_recv_datagram(sk, flags, noblock, &err); |
| 225 | if (!skb) { |
Marcel Holtmann | d976369 | 2013-10-13 12:55:28 -0700 | [diff] [blame^] | 226 | if (sk->sk_shutdown & RCV_SHUTDOWN) { |
| 227 | msg->msg_namelen = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | return 0; |
Marcel Holtmann | d976369 | 2013-10-13 12:55:28 -0700 | [diff] [blame^] | 229 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | return err; |
| 231 | } |
| 232 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | copied = skb->len; |
| 234 | if (len < copied) { |
| 235 | msg->msg_flags |= MSG_TRUNC; |
| 236 | copied = len; |
| 237 | } |
| 238 | |
Arnaldo Carvalho de Melo | badff6d | 2007-03-13 13:06:52 -0300 | [diff] [blame] | 239 | skb_reset_transport_header(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); |
Marcel Holtmann | d976369 | 2013-10-13 12:55:28 -0700 | [diff] [blame^] | 241 | if (err == 0) { |
Neil Horman | 3b88578 | 2009-10-12 13:26:31 -0700 | [diff] [blame] | 242 | sock_recv_ts_and_drops(msg, sk, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | |
Marcel Holtmann | d976369 | 2013-10-13 12:55:28 -0700 | [diff] [blame^] | 244 | if (bt_sk(sk)->skb_msg_name) |
| 245 | bt_sk(sk)->skb_msg_name(skb, msg->msg_name, |
| 246 | &msg->msg_namelen); |
| 247 | else |
| 248 | msg->msg_namelen = 0; |
| 249 | } |
| 250 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | skb_free_datagram(sk, skb); |
| 252 | |
| 253 | return err ? : copied; |
| 254 | } |
| 255 | EXPORT_SYMBOL(bt_sock_recvmsg); |
| 256 | |
Mat Martineau | 796c86e | 2010-09-08 10:05:27 -0700 | [diff] [blame] | 257 | static long bt_sock_data_wait(struct sock *sk, long timeo) |
| 258 | { |
| 259 | DECLARE_WAITQUEUE(wait, current); |
| 260 | |
| 261 | add_wait_queue(sk_sleep(sk), &wait); |
| 262 | for (;;) { |
| 263 | set_current_state(TASK_INTERRUPTIBLE); |
| 264 | |
| 265 | if (!skb_queue_empty(&sk->sk_receive_queue)) |
| 266 | break; |
| 267 | |
| 268 | if (sk->sk_err || (sk->sk_shutdown & RCV_SHUTDOWN)) |
| 269 | break; |
| 270 | |
| 271 | if (signal_pending(current) || !timeo) |
| 272 | break; |
| 273 | |
| 274 | set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); |
| 275 | release_sock(sk); |
| 276 | timeo = schedule_timeout(timeo); |
| 277 | lock_sock(sk); |
| 278 | clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); |
| 279 | } |
| 280 | |
| 281 | __set_current_state(TASK_RUNNING); |
| 282 | remove_wait_queue(sk_sleep(sk), &wait); |
| 283 | return timeo; |
| 284 | } |
| 285 | |
| 286 | int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock, |
| 287 | struct msghdr *msg, size_t size, int flags) |
| 288 | { |
| 289 | struct sock *sk = sock->sk; |
| 290 | int err = 0; |
| 291 | size_t target, copied = 0; |
| 292 | long timeo; |
| 293 | |
| 294 | if (flags & MSG_OOB) |
| 295 | return -EOPNOTSUPP; |
| 296 | |
| 297 | msg->msg_namelen = 0; |
| 298 | |
| 299 | BT_DBG("sk %p size %zu", sk, size); |
| 300 | |
| 301 | lock_sock(sk); |
| 302 | |
| 303 | target = sock_rcvlowat(sk, flags & MSG_WAITALL, size); |
| 304 | timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT); |
| 305 | |
| 306 | do { |
| 307 | struct sk_buff *skb; |
| 308 | int chunk; |
| 309 | |
| 310 | skb = skb_dequeue(&sk->sk_receive_queue); |
| 311 | if (!skb) { |
| 312 | if (copied >= target) |
| 313 | break; |
| 314 | |
Andrei Emeltchenko | 5a08ecc | 2011-01-11 17:20:20 +0200 | [diff] [blame] | 315 | err = sock_error(sk); |
| 316 | if (err) |
Mat Martineau | 796c86e | 2010-09-08 10:05:27 -0700 | [diff] [blame] | 317 | break; |
| 318 | if (sk->sk_shutdown & RCV_SHUTDOWN) |
| 319 | break; |
| 320 | |
| 321 | err = -EAGAIN; |
| 322 | if (!timeo) |
| 323 | break; |
| 324 | |
| 325 | timeo = bt_sock_data_wait(sk, timeo); |
| 326 | |
| 327 | if (signal_pending(current)) { |
| 328 | err = sock_intr_errno(timeo); |
| 329 | goto out; |
| 330 | } |
| 331 | continue; |
| 332 | } |
| 333 | |
| 334 | chunk = min_t(unsigned int, skb->len, size); |
Mat Martineau | 5b668eb | 2011-07-22 14:53:59 -0700 | [diff] [blame] | 335 | if (skb_copy_datagram_iovec(skb, 0, msg->msg_iov, chunk)) { |
Mat Martineau | 796c86e | 2010-09-08 10:05:27 -0700 | [diff] [blame] | 336 | skb_queue_head(&sk->sk_receive_queue, skb); |
| 337 | if (!copied) |
| 338 | copied = -EFAULT; |
| 339 | break; |
| 340 | } |
| 341 | copied += chunk; |
| 342 | size -= chunk; |
| 343 | |
| 344 | sock_recv_ts_and_drops(msg, sk, skb); |
| 345 | |
| 346 | if (!(flags & MSG_PEEK)) { |
Mat Martineau | 5b668eb | 2011-07-22 14:53:59 -0700 | [diff] [blame] | 347 | int skb_len = skb_headlen(skb); |
| 348 | |
| 349 | if (chunk <= skb_len) { |
| 350 | __skb_pull(skb, chunk); |
| 351 | } else { |
| 352 | struct sk_buff *frag; |
| 353 | |
| 354 | __skb_pull(skb, skb_len); |
| 355 | chunk -= skb_len; |
| 356 | |
| 357 | skb_walk_frags(skb, frag) { |
| 358 | if (chunk <= frag->len) { |
| 359 | /* Pulling partial data */ |
| 360 | skb->len -= chunk; |
| 361 | skb->data_len -= chunk; |
| 362 | __skb_pull(frag, chunk); |
| 363 | break; |
| 364 | } else if (frag->len) { |
| 365 | /* Pulling all frag data */ |
| 366 | chunk -= frag->len; |
| 367 | skb->len -= frag->len; |
| 368 | skb->data_len -= frag->len; |
| 369 | __skb_pull(frag, frag->len); |
| 370 | } |
| 371 | } |
| 372 | } |
| 373 | |
Mat Martineau | 796c86e | 2010-09-08 10:05:27 -0700 | [diff] [blame] | 374 | if (skb->len) { |
| 375 | skb_queue_head(&sk->sk_receive_queue, skb); |
| 376 | break; |
| 377 | } |
| 378 | kfree_skb(skb); |
| 379 | |
| 380 | } else { |
| 381 | /* put message back and return */ |
| 382 | skb_queue_head(&sk->sk_receive_queue, skb); |
| 383 | break; |
| 384 | } |
| 385 | } while (size); |
| 386 | |
| 387 | out: |
| 388 | release_sock(sk); |
| 389 | return copied ? : err; |
| 390 | } |
| 391 | EXPORT_SYMBOL(bt_sock_stream_recvmsg); |
| 392 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | static inline unsigned int bt_accept_poll(struct sock *parent) |
| 394 | { |
| 395 | struct list_head *p, *n; |
| 396 | struct sock *sk; |
| 397 | |
| 398 | list_for_each_safe(p, n, &bt_sk(parent)->accept_q) { |
| 399 | sk = (struct sock *) list_entry(p, struct bt_sock, accept_q); |
Marcel Holtmann | d5f2d2b | 2009-02-16 02:57:30 +0100 | [diff] [blame] | 400 | if (sk->sk_state == BT_CONNECTED || |
Gustavo Padovan | c5daa68 | 2012-05-16 12:17:10 -0300 | [diff] [blame] | 401 | (test_bit(BT_SK_DEFER_SETUP, &bt_sk(parent)->flags) && |
| 402 | sk->sk_state == BT_CONNECT2)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | return POLLIN | POLLRDNORM; |
| 404 | } |
| 405 | |
| 406 | return 0; |
| 407 | } |
| 408 | |
Gustavo Padovan | 8fc9ced | 2012-05-23 04:04:21 -0300 | [diff] [blame] | 409 | unsigned int bt_sock_poll(struct file *file, struct socket *sock, |
| 410 | poll_table *wait) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | { |
| 412 | struct sock *sk = sock->sk; |
| 413 | unsigned int mask = 0; |
| 414 | |
| 415 | BT_DBG("sock %p, sk %p", sock, sk); |
| 416 | |
Eric Dumazet | aa39514 | 2010-04-20 13:03:51 +0000 | [diff] [blame] | 417 | poll_wait(file, sk_sleep(sk), wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | |
| 419 | if (sk->sk_state == BT_LISTEN) |
| 420 | return bt_accept_poll(sk); |
| 421 | |
| 422 | if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue)) |
Keller, Jacob E | 7d4c04f | 2013-03-28 11:19:25 +0000 | [diff] [blame] | 423 | mask |= POLLERR | |
Jacob Keller | 8facd5f | 2013-04-02 13:55:40 -0700 | [diff] [blame] | 424 | (sock_flag(sk, SOCK_SELECT_ERR_QUEUE) ? POLLPRI : 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | |
Davide Libenzi | f348d70 | 2006-03-25 03:07:39 -0800 | [diff] [blame] | 426 | if (sk->sk_shutdown & RCV_SHUTDOWN) |
Eric Dumazet | db40980 | 2010-09-06 11:13:50 +0000 | [diff] [blame] | 427 | mask |= POLLRDHUP | POLLIN | POLLRDNORM; |
Davide Libenzi | f348d70 | 2006-03-25 03:07:39 -0800 | [diff] [blame] | 428 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | if (sk->sk_shutdown == SHUTDOWN_MASK) |
| 430 | mask |= POLLHUP; |
| 431 | |
Eric Dumazet | db40980 | 2010-09-06 11:13:50 +0000 | [diff] [blame] | 432 | if (!skb_queue_empty(&sk->sk_receive_queue)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | mask |= POLLIN | POLLRDNORM; |
| 434 | |
| 435 | if (sk->sk_state == BT_CLOSED) |
| 436 | mask |= POLLHUP; |
| 437 | |
| 438 | if (sk->sk_state == BT_CONNECT || |
| 439 | sk->sk_state == BT_CONNECT2 || |
| 440 | sk->sk_state == BT_CONFIG) |
| 441 | return mask; |
| 442 | |
Gustavo Padovan | c5daa68 | 2012-05-16 12:17:10 -0300 | [diff] [blame] | 443 | if (!test_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags) && sock_writeable(sk)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | mask |= POLLOUT | POLLWRNORM | POLLWRBAND; |
| 445 | else |
| 446 | set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); |
| 447 | |
| 448 | return mask; |
| 449 | } |
| 450 | EXPORT_SYMBOL(bt_sock_poll); |
| 451 | |
Marcel Holtmann | 3241ad8 | 2008-07-14 20:13:50 +0200 | [diff] [blame] | 452 | int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) |
| 453 | { |
| 454 | struct sock *sk = sock->sk; |
Marcel Holtmann | 43cbeee | 2008-07-14 20:13:51 +0200 | [diff] [blame] | 455 | struct sk_buff *skb; |
| 456 | long amount; |
Marcel Holtmann | 3241ad8 | 2008-07-14 20:13:50 +0200 | [diff] [blame] | 457 | int err; |
| 458 | |
| 459 | BT_DBG("sk %p cmd %x arg %lx", sk, cmd, arg); |
| 460 | |
| 461 | switch (cmd) { |
Marcel Holtmann | 43cbeee | 2008-07-14 20:13:51 +0200 | [diff] [blame] | 462 | case TIOCOUTQ: |
| 463 | if (sk->sk_state == BT_LISTEN) |
| 464 | return -EINVAL; |
| 465 | |
Eric Dumazet | 31e6d36 | 2009-06-17 19:05:41 -0700 | [diff] [blame] | 466 | amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk); |
Marcel Holtmann | 43cbeee | 2008-07-14 20:13:51 +0200 | [diff] [blame] | 467 | if (amount < 0) |
| 468 | amount = 0; |
| 469 | err = put_user(amount, (int __user *) arg); |
| 470 | break; |
| 471 | |
| 472 | case TIOCINQ: |
| 473 | if (sk->sk_state == BT_LISTEN) |
| 474 | return -EINVAL; |
| 475 | |
| 476 | lock_sock(sk); |
| 477 | skb = skb_peek(&sk->sk_receive_queue); |
| 478 | amount = skb ? skb->len : 0; |
| 479 | release_sock(sk); |
| 480 | err = put_user(amount, (int __user *) arg); |
| 481 | break; |
| 482 | |
Marcel Holtmann | 3241ad8 | 2008-07-14 20:13:50 +0200 | [diff] [blame] | 483 | case SIOCGSTAMP: |
| 484 | err = sock_get_timestamp(sk, (struct timeval __user *) arg); |
| 485 | break; |
| 486 | |
| 487 | case SIOCGSTAMPNS: |
| 488 | err = sock_get_timestampns(sk, (struct timespec __user *) arg); |
| 489 | break; |
| 490 | |
| 491 | default: |
| 492 | err = -ENOIOCTLCMD; |
| 493 | break; |
| 494 | } |
| 495 | |
| 496 | return err; |
| 497 | } |
| 498 | EXPORT_SYMBOL(bt_sock_ioctl); |
| 499 | |
Johan Hedberg | 0fba96f | 2013-09-25 13:26:04 +0300 | [diff] [blame] | 500 | /* This function expects the sk lock to be held when called */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo) |
| 502 | { |
| 503 | DECLARE_WAITQUEUE(wait, current); |
| 504 | int err = 0; |
| 505 | |
| 506 | BT_DBG("sk %p", sk); |
| 507 | |
Eric Dumazet | aa39514 | 2010-04-20 13:03:51 +0000 | [diff] [blame] | 508 | add_wait_queue(sk_sleep(sk), &wait); |
Peter Hurley | 9be4e3f | 2011-07-24 00:10:46 -0400 | [diff] [blame] | 509 | set_current_state(TASK_INTERRUPTIBLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | while (sk->sk_state != state) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | if (!timeo) { |
Marcel Holtmann | b4c612a | 2006-09-23 09:54:38 +0200 | [diff] [blame] | 512 | err = -EINPROGRESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | break; |
| 514 | } |
| 515 | |
| 516 | if (signal_pending(current)) { |
| 517 | err = sock_intr_errno(timeo); |
| 518 | break; |
| 519 | } |
| 520 | |
| 521 | release_sock(sk); |
| 522 | timeo = schedule_timeout(timeo); |
| 523 | lock_sock(sk); |
Peter Hurley | 9be4e3f | 2011-07-24 00:10:46 -0400 | [diff] [blame] | 524 | set_current_state(TASK_INTERRUPTIBLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | |
Benjamin LaHaise | c1cbe4b | 2005-12-13 23:22:19 -0800 | [diff] [blame] | 526 | err = sock_error(sk); |
| 527 | if (err) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | } |
Peter Hurley | 9be4e3f | 2011-07-24 00:10:46 -0400 | [diff] [blame] | 530 | __set_current_state(TASK_RUNNING); |
Eric Dumazet | aa39514 | 2010-04-20 13:03:51 +0000 | [diff] [blame] | 531 | remove_wait_queue(sk_sleep(sk), &wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | return err; |
| 533 | } |
| 534 | EXPORT_SYMBOL(bt_sock_wait_state); |
| 535 | |
Johan Hedberg | e793dcf | 2013-09-16 13:05:19 +0300 | [diff] [blame] | 536 | /* This function expects the sk lock to be held when called */ |
| 537 | int bt_sock_wait_ready(struct sock *sk, unsigned long flags) |
| 538 | { |
| 539 | DECLARE_WAITQUEUE(wait, current); |
| 540 | unsigned long timeo; |
| 541 | int err = 0; |
| 542 | |
| 543 | BT_DBG("sk %p", sk); |
| 544 | |
| 545 | timeo = sock_sndtimeo(sk, flags & O_NONBLOCK); |
| 546 | |
| 547 | add_wait_queue(sk_sleep(sk), &wait); |
| 548 | set_current_state(TASK_INTERRUPTIBLE); |
| 549 | while (test_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags)) { |
| 550 | if (!timeo) { |
| 551 | err = -EAGAIN; |
| 552 | break; |
| 553 | } |
| 554 | |
| 555 | if (signal_pending(current)) { |
| 556 | err = sock_intr_errno(timeo); |
| 557 | break; |
| 558 | } |
| 559 | |
| 560 | release_sock(sk); |
| 561 | timeo = schedule_timeout(timeo); |
| 562 | lock_sock(sk); |
| 563 | set_current_state(TASK_INTERRUPTIBLE); |
| 564 | |
| 565 | err = sock_error(sk); |
| 566 | if (err) |
| 567 | break; |
| 568 | } |
| 569 | __set_current_state(TASK_RUNNING); |
| 570 | remove_wait_queue(sk_sleep(sk), &wait); |
| 571 | |
| 572 | return err; |
| 573 | } |
| 574 | EXPORT_SYMBOL(bt_sock_wait_ready); |
| 575 | |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 576 | #ifdef CONFIG_PROC_FS |
| 577 | struct bt_seq_state { |
| 578 | struct bt_sock_list *l; |
| 579 | }; |
| 580 | |
| 581 | static void *bt_seq_start(struct seq_file *seq, loff_t *pos) |
| 582 | __acquires(seq->private->l->lock) |
| 583 | { |
| 584 | struct bt_seq_state *s = seq->private; |
| 585 | struct bt_sock_list *l = s->l; |
| 586 | |
| 587 | read_lock(&l->lock); |
| 588 | return seq_hlist_start_head(&l->head, *pos); |
| 589 | } |
| 590 | |
| 591 | static void *bt_seq_next(struct seq_file *seq, void *v, loff_t *pos) |
| 592 | { |
| 593 | struct bt_seq_state *s = seq->private; |
| 594 | struct bt_sock_list *l = s->l; |
| 595 | |
| 596 | return seq_hlist_next(v, &l->head, pos); |
| 597 | } |
| 598 | |
| 599 | static void bt_seq_stop(struct seq_file *seq, void *v) |
| 600 | __releases(seq->private->l->lock) |
| 601 | { |
| 602 | struct bt_seq_state *s = seq->private; |
| 603 | struct bt_sock_list *l = s->l; |
| 604 | |
| 605 | read_unlock(&l->lock); |
| 606 | } |
| 607 | |
| 608 | static int bt_seq_show(struct seq_file *seq, void *v) |
| 609 | { |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 610 | struct bt_seq_state *s = seq->private; |
| 611 | struct bt_sock_list *l = s->l; |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 612 | |
| 613 | if (v == SEQ_START_TOKEN) { |
| 614 | seq_puts(seq ,"sk RefCnt Rmem Wmem User Inode Src Dst Parent"); |
| 615 | |
| 616 | if (l->custom_seq_show) { |
| 617 | seq_putc(seq, ' '); |
| 618 | l->custom_seq_show(seq, v); |
| 619 | } |
| 620 | |
| 621 | seq_putc(seq, '\n'); |
| 622 | } else { |
Andrei Emeltchenko | 09d5d4a | 2012-08-07 18:05:04 +0300 | [diff] [blame] | 623 | struct sock *sk = sk_entry(v); |
| 624 | struct bt_sock *bt = bt_sk(sk); |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 625 | |
Andrei Emeltchenko | 7028a88 | 2012-09-25 12:49:45 +0300 | [diff] [blame] | 626 | seq_printf(seq, |
Marcel Holtmann | 5f6cd79 | 2013-10-13 10:34:03 -0700 | [diff] [blame] | 627 | "%pK %-6d %-6u %-6u %-6u %-6lu %-6lu", |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 628 | sk, |
| 629 | atomic_read(&sk->sk_refcnt), |
| 630 | sk_rmem_alloc_get(sk), |
| 631 | sk_wmem_alloc_get(sk), |
Eric W. Biederman | 1bbb309 | 2012-10-03 20:32:17 -0700 | [diff] [blame] | 632 | from_kuid(seq_user_ns(seq), sock_i_uid(sk)), |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 633 | sock_i_ino(sk), |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 634 | bt->parent? sock_i_ino(bt->parent): 0LU); |
| 635 | |
| 636 | if (l->custom_seq_show) { |
| 637 | seq_putc(seq, ' '); |
| 638 | l->custom_seq_show(seq, v); |
| 639 | } |
| 640 | |
| 641 | seq_putc(seq, '\n'); |
| 642 | } |
| 643 | return 0; |
| 644 | } |
| 645 | |
| 646 | static struct seq_operations bt_seq_ops = { |
| 647 | .start = bt_seq_start, |
| 648 | .next = bt_seq_next, |
| 649 | .stop = bt_seq_stop, |
| 650 | .show = bt_seq_show, |
| 651 | }; |
| 652 | |
| 653 | static int bt_seq_open(struct inode *inode, struct file *file) |
| 654 | { |
| 655 | struct bt_sock_list *sk_list; |
| 656 | struct bt_seq_state *s; |
| 657 | |
Al Viro | d9dda78 | 2013-03-31 18:16:14 -0400 | [diff] [blame] | 658 | sk_list = PDE_DATA(inode); |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 659 | s = __seq_open_private(file, &bt_seq_ops, |
| 660 | sizeof(struct bt_seq_state)); |
Andrei Emeltchenko | 31f4707 | 2012-08-07 18:05:06 +0300 | [diff] [blame] | 661 | if (!s) |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 662 | return -ENOMEM; |
| 663 | |
| 664 | s->l = sk_list; |
| 665 | return 0; |
| 666 | } |
| 667 | |
Al Viro | 1480535 | 2013-04-04 19:12:06 -0400 | [diff] [blame] | 668 | static const struct file_operations bt_fops = { |
| 669 | .open = bt_seq_open, |
| 670 | .read = seq_read, |
| 671 | .llseek = seq_lseek, |
| 672 | .release = seq_release_private |
| 673 | }; |
| 674 | |
Al Viro | b031661 | 2013-04-04 19:14:33 -0400 | [diff] [blame] | 675 | int bt_procfs_init(struct net *net, const char *name, |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 676 | struct bt_sock_list* sk_list, |
| 677 | int (* seq_show)(struct seq_file *, void *)) |
| 678 | { |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 679 | sk_list->custom_seq_show = seq_show; |
| 680 | |
Al Viro | 4d00626 | 2013-04-04 19:16:06 -0400 | [diff] [blame] | 681 | if (!proc_create_data(name, 0, net->proc_net, &bt_fops, sk_list)) |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 682 | return -ENOMEM; |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 683 | return 0; |
| 684 | } |
| 685 | |
| 686 | void bt_procfs_cleanup(struct net *net, const char *name) |
| 687 | { |
Gao feng | ece31ff | 2013-02-18 01:34:56 +0000 | [diff] [blame] | 688 | remove_proc_entry(name, net->proc_net); |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 689 | } |
| 690 | #else |
Al Viro | b031661 | 2013-04-04 19:14:33 -0400 | [diff] [blame] | 691 | int bt_procfs_init(struct net *net, const char *name, |
Masatake YAMATO | 256a06c | 2012-07-26 01:26:32 +0900 | [diff] [blame] | 692 | struct bt_sock_list* sk_list, |
| 693 | int (* seq_show)(struct seq_file *, void *)) |
| 694 | { |
| 695 | return 0; |
| 696 | } |
| 697 | |
| 698 | void bt_procfs_cleanup(struct net *net, const char *name) |
| 699 | { |
| 700 | } |
| 701 | #endif |
| 702 | EXPORT_SYMBOL(bt_procfs_init); |
| 703 | EXPORT_SYMBOL(bt_procfs_cleanup); |
| 704 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | static struct net_proto_family bt_sock_family_ops = { |
| 706 | .owner = THIS_MODULE, |
| 707 | .family = PF_BLUETOOTH, |
| 708 | .create = bt_sock_create, |
| 709 | }; |
| 710 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | static int __init bt_init(void) |
| 712 | { |
Marcel Holtmann | 27d3528 | 2006-07-03 10:02:37 +0200 | [diff] [blame] | 713 | int err; |
| 714 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | BT_INFO("Core ver %s", VERSION); |
| 716 | |
Marcel Holtmann | 27d3528 | 2006-07-03 10:02:37 +0200 | [diff] [blame] | 717 | err = bt_sysfs_init(); |
| 718 | if (err < 0) |
| 719 | return err; |
| 720 | |
| 721 | err = sock_register(&bt_sock_family_ops); |
| 722 | if (err < 0) { |
| 723 | bt_sysfs_cleanup(); |
| 724 | return err; |
| 725 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 726 | |
| 727 | BT_INFO("HCI device and connection manager initialized"); |
| 728 | |
Gustavo F. Padovan | 6427451 | 2011-02-07 20:08:52 -0200 | [diff] [blame] | 729 | err = hci_sock_init(); |
| 730 | if (err < 0) |
| 731 | goto error; |
| 732 | |
| 733 | err = l2cap_init(); |
Anand Gadiyar | 0ed54da | 2011-02-22 12:43:26 +0530 | [diff] [blame] | 734 | if (err < 0) |
Gustavo F. Padovan | 6427451 | 2011-02-07 20:08:52 -0200 | [diff] [blame] | 735 | goto sock_err; |
Gustavo F. Padovan | 6427451 | 2011-02-07 20:08:52 -0200 | [diff] [blame] | 736 | |
| 737 | err = sco_init(); |
| 738 | if (err < 0) { |
| 739 | l2cap_exit(); |
| 740 | goto sock_err; |
| 741 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | |
| 743 | return 0; |
Gustavo F. Padovan | 6427451 | 2011-02-07 20:08:52 -0200 | [diff] [blame] | 744 | |
| 745 | sock_err: |
| 746 | hci_sock_cleanup(); |
| 747 | |
| 748 | error: |
| 749 | sock_unregister(PF_BLUETOOTH); |
| 750 | bt_sysfs_cleanup(); |
| 751 | |
| 752 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | } |
| 754 | |
| 755 | static void __exit bt_exit(void) |
| 756 | { |
Gustavo F. Padovan | 6427451 | 2011-02-07 20:08:52 -0200 | [diff] [blame] | 757 | |
| 758 | sco_exit(); |
| 759 | |
| 760 | l2cap_exit(); |
| 761 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 762 | hci_sock_cleanup(); |
| 763 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | sock_unregister(PF_BLUETOOTH); |
Marcel Holtmann | 27d3528 | 2006-07-03 10:02:37 +0200 | [diff] [blame] | 765 | |
| 766 | bt_sysfs_cleanup(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | } |
| 768 | |
| 769 | subsys_initcall(bt_init); |
| 770 | module_exit(bt_exit); |
| 771 | |
Marcel Holtmann | 63fbd24 | 2008-08-18 13:23:53 +0200 | [diff] [blame] | 772 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | MODULE_DESCRIPTION("Bluetooth Core ver " VERSION); |
| 774 | MODULE_VERSION(VERSION); |
| 775 | MODULE_LICENSE("GPL"); |
| 776 | MODULE_ALIAS_NETPROTO(PF_BLUETOOTH); |