Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1 | /* |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2 | * Copyright IBM Corp. 2007 |
| 3 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, |
| 4 | * Frank Pavlic <fpavlic@de.ibm.com>, |
| 5 | * Thomas Spatzier <tspat@de.ibm.com>, |
| 6 | * Frank Blaschka <frank.blaschka@de.ibm.com> |
| 7 | */ |
| 8 | |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 9 | #include <linux/slab.h> |
Frank Blaschka | b333293 | 2011-08-08 01:33:59 +0000 | [diff] [blame] | 10 | #include <asm/ebcdic.h> |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 11 | #include <linux/hashtable.h> |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 12 | #include "qeth_l3.h" |
| 13 | |
| 14 | #define QETH_DEVICE_ATTR(_id, _name, _mode, _show, _store) \ |
| 15 | struct device_attribute dev_attr_##_id = __ATTR(_name, _mode, _show, _store) |
| 16 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 17 | static ssize_t qeth_l3_dev_route_show(struct qeth_card *card, |
| 18 | struct qeth_routing_info *route, char *buf) |
| 19 | { |
| 20 | switch (route->type) { |
| 21 | case PRIMARY_ROUTER: |
| 22 | return sprintf(buf, "%s\n", "primary router"); |
| 23 | case SECONDARY_ROUTER: |
| 24 | return sprintf(buf, "%s\n", "secondary router"); |
| 25 | case MULTICAST_ROUTER: |
| 26 | if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO) |
| 27 | return sprintf(buf, "%s\n", "multicast router+"); |
| 28 | else |
| 29 | return sprintf(buf, "%s\n", "multicast router"); |
| 30 | case PRIMARY_CONNECTOR: |
| 31 | if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO) |
| 32 | return sprintf(buf, "%s\n", "primary connector+"); |
| 33 | else |
| 34 | return sprintf(buf, "%s\n", "primary connector"); |
| 35 | case SECONDARY_CONNECTOR: |
| 36 | if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO) |
| 37 | return sprintf(buf, "%s\n", "secondary connector+"); |
| 38 | else |
| 39 | return sprintf(buf, "%s\n", "secondary connector"); |
| 40 | default: |
| 41 | return sprintf(buf, "%s\n", "no"); |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | static ssize_t qeth_l3_dev_route4_show(struct device *dev, |
| 46 | struct device_attribute *attr, char *buf) |
| 47 | { |
| 48 | struct qeth_card *card = dev_get_drvdata(dev); |
| 49 | |
| 50 | if (!card) |
| 51 | return -EINVAL; |
| 52 | |
| 53 | return qeth_l3_dev_route_show(card, &card->options.route4, buf); |
| 54 | } |
| 55 | |
| 56 | static ssize_t qeth_l3_dev_route_store(struct qeth_card *card, |
| 57 | struct qeth_routing_info *route, enum qeth_prot_versions prot, |
| 58 | const char *buf, size_t count) |
| 59 | { |
| 60 | enum qeth_routing_types old_route_type = route->type; |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 61 | int rc = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 62 | |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 63 | mutex_lock(&card->conf_mutex); |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 64 | if (sysfs_streq(buf, "no_router")) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 65 | route->type = NO_ROUTER; |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 66 | } else if (sysfs_streq(buf, "primary_connector")) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 67 | route->type = PRIMARY_CONNECTOR; |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 68 | } else if (sysfs_streq(buf, "secondary_connector")) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 69 | route->type = SECONDARY_CONNECTOR; |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 70 | } else if (sysfs_streq(buf, "primary_router")) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 71 | route->type = PRIMARY_ROUTER; |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 72 | } else if (sysfs_streq(buf, "secondary_router")) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 73 | route->type = SECONDARY_ROUTER; |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 74 | } else if (sysfs_streq(buf, "multicast_router")) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 75 | route->type = MULTICAST_ROUTER; |
| 76 | } else { |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 77 | rc = -EINVAL; |
| 78 | goto out; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 79 | } |
Eugene Crosser | c352125 | 2015-01-16 14:05:47 +0100 | [diff] [blame] | 80 | if (qeth_card_hw_is_reachable(card) && |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 81 | (old_route_type != route->type)) { |
| 82 | if (prot == QETH_PROT_IPV4) |
| 83 | rc = qeth_l3_setrouting_v4(card); |
| 84 | else if (prot == QETH_PROT_IPV6) |
| 85 | rc = qeth_l3_setrouting_v6(card); |
| 86 | } |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 87 | out: |
Stefan Raspl | 82e2e78 | 2013-03-18 20:04:43 +0000 | [diff] [blame] | 88 | if (rc) |
| 89 | route->type = old_route_type; |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 90 | mutex_unlock(&card->conf_mutex); |
| 91 | return rc ? rc : count; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 92 | } |
| 93 | |
| 94 | static ssize_t qeth_l3_dev_route4_store(struct device *dev, |
| 95 | struct device_attribute *attr, const char *buf, size_t count) |
| 96 | { |
| 97 | struct qeth_card *card = dev_get_drvdata(dev); |
| 98 | |
| 99 | if (!card) |
| 100 | return -EINVAL; |
| 101 | |
| 102 | return qeth_l3_dev_route_store(card, &card->options.route4, |
| 103 | QETH_PROT_IPV4, buf, count); |
| 104 | } |
| 105 | |
| 106 | static DEVICE_ATTR(route4, 0644, qeth_l3_dev_route4_show, |
| 107 | qeth_l3_dev_route4_store); |
| 108 | |
| 109 | static ssize_t qeth_l3_dev_route6_show(struct device *dev, |
| 110 | struct device_attribute *attr, char *buf) |
| 111 | { |
| 112 | struct qeth_card *card = dev_get_drvdata(dev); |
| 113 | |
| 114 | if (!card) |
| 115 | return -EINVAL; |
| 116 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 117 | return qeth_l3_dev_route_show(card, &card->options.route6, buf); |
| 118 | } |
| 119 | |
| 120 | static ssize_t qeth_l3_dev_route6_store(struct device *dev, |
| 121 | struct device_attribute *attr, const char *buf, size_t count) |
| 122 | { |
| 123 | struct qeth_card *card = dev_get_drvdata(dev); |
| 124 | |
| 125 | if (!card) |
| 126 | return -EINVAL; |
| 127 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 128 | return qeth_l3_dev_route_store(card, &card->options.route6, |
| 129 | QETH_PROT_IPV6, buf, count); |
| 130 | } |
| 131 | |
| 132 | static DEVICE_ATTR(route6, 0644, qeth_l3_dev_route6_show, |
| 133 | qeth_l3_dev_route6_store); |
| 134 | |
| 135 | static ssize_t qeth_l3_dev_fake_broadcast_show(struct device *dev, |
| 136 | struct device_attribute *attr, char *buf) |
| 137 | { |
| 138 | struct qeth_card *card = dev_get_drvdata(dev); |
| 139 | |
| 140 | if (!card) |
| 141 | return -EINVAL; |
| 142 | |
| 143 | return sprintf(buf, "%i\n", card->options.fake_broadcast? 1:0); |
| 144 | } |
| 145 | |
| 146 | static ssize_t qeth_l3_dev_fake_broadcast_store(struct device *dev, |
| 147 | struct device_attribute *attr, const char *buf, size_t count) |
| 148 | { |
| 149 | struct qeth_card *card = dev_get_drvdata(dev); |
| 150 | char *tmp; |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 151 | int i, rc = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 152 | |
| 153 | if (!card) |
| 154 | return -EINVAL; |
| 155 | |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 156 | mutex_lock(&card->conf_mutex); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 157 | if ((card->state != CARD_STATE_DOWN) && |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 158 | (card->state != CARD_STATE_RECOVER)) { |
| 159 | rc = -EPERM; |
| 160 | goto out; |
| 161 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 162 | |
| 163 | i = simple_strtoul(buf, &tmp, 16); |
| 164 | if ((i == 0) || (i == 1)) |
| 165 | card->options.fake_broadcast = i; |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 166 | else |
| 167 | rc = -EINVAL; |
| 168 | out: |
| 169 | mutex_unlock(&card->conf_mutex); |
| 170 | return rc ? rc : count; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 171 | } |
| 172 | |
| 173 | static DEVICE_ATTR(fake_broadcast, 0644, qeth_l3_dev_fake_broadcast_show, |
| 174 | qeth_l3_dev_fake_broadcast_store); |
| 175 | |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 176 | static ssize_t qeth_l3_dev_sniffer_show(struct device *dev, |
| 177 | struct device_attribute *attr, char *buf) |
| 178 | { |
| 179 | struct qeth_card *card = dev_get_drvdata(dev); |
| 180 | |
| 181 | if (!card) |
| 182 | return -EINVAL; |
| 183 | |
| 184 | return sprintf(buf, "%i\n", card->options.sniffer ? 1 : 0); |
| 185 | } |
| 186 | |
| 187 | static ssize_t qeth_l3_dev_sniffer_store(struct device *dev, |
| 188 | struct device_attribute *attr, const char *buf, size_t count) |
| 189 | { |
| 190 | struct qeth_card *card = dev_get_drvdata(dev); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 191 | int rc = 0; |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 192 | unsigned long i; |
| 193 | |
| 194 | if (!card) |
| 195 | return -EINVAL; |
| 196 | |
| 197 | if (card->info.type != QETH_CARD_TYPE_IQD) |
| 198 | return -EPERM; |
Frank Blaschka | b333293 | 2011-08-08 01:33:59 +0000 | [diff] [blame] | 199 | if (card->options.cq == QETH_CQ_ENABLED) |
| 200 | return -EPERM; |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 201 | |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 202 | mutex_lock(&card->conf_mutex); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 203 | if ((card->state != CARD_STATE_DOWN) && |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 204 | (card->state != CARD_STATE_RECOVER)) { |
| 205 | rc = -EPERM; |
| 206 | goto out; |
| 207 | } |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 208 | |
Jingoo Han | 0178722 | 2013-07-22 10:18:15 +0900 | [diff] [blame] | 209 | rc = kstrtoul(buf, 16, &i); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 210 | if (rc) { |
| 211 | rc = -EINVAL; |
| 212 | goto out; |
| 213 | } |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 214 | switch (i) { |
| 215 | case 0: |
| 216 | card->options.sniffer = i; |
| 217 | break; |
| 218 | case 1: |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 219 | qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 220 | if (card->ssqd.qdioac2 & QETH_SNIFF_AVAIL) { |
| 221 | card->options.sniffer = i; |
| 222 | if (card->qdio.init_pool.buf_count != |
| 223 | QETH_IN_BUF_COUNT_MAX) |
| 224 | qeth_realloc_buffer_pool(card, |
| 225 | QETH_IN_BUF_COUNT_MAX); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 226 | } else |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 227 | rc = -EPERM; |
Ursula Braun | 6cc31d0 | 2011-11-15 02:31:12 +0000 | [diff] [blame] | 228 | break; |
| 229 | default: |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 230 | rc = -EINVAL; |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 231 | } |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 232 | out: |
| 233 | mutex_unlock(&card->conf_mutex); |
| 234 | return rc ? rc : count; |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 235 | } |
| 236 | |
| 237 | static DEVICE_ATTR(sniffer, 0644, qeth_l3_dev_sniffer_show, |
| 238 | qeth_l3_dev_sniffer_store); |
| 239 | |
Frank Blaschka | b333293 | 2011-08-08 01:33:59 +0000 | [diff] [blame] | 240 | |
| 241 | static ssize_t qeth_l3_dev_hsuid_show(struct device *dev, |
| 242 | struct device_attribute *attr, char *buf) |
| 243 | { |
| 244 | struct qeth_card *card = dev_get_drvdata(dev); |
| 245 | char tmp_hsuid[9]; |
| 246 | |
| 247 | if (!card) |
| 248 | return -EINVAL; |
| 249 | |
| 250 | if (card->info.type != QETH_CARD_TYPE_IQD) |
| 251 | return -EPERM; |
| 252 | |
| 253 | if (card->state == CARD_STATE_DOWN) |
| 254 | return -EPERM; |
| 255 | |
| 256 | memcpy(tmp_hsuid, card->options.hsuid, sizeof(tmp_hsuid)); |
| 257 | EBCASC(tmp_hsuid, 8); |
| 258 | return sprintf(buf, "%s\n", tmp_hsuid); |
| 259 | } |
| 260 | |
| 261 | static ssize_t qeth_l3_dev_hsuid_store(struct device *dev, |
| 262 | struct device_attribute *attr, const char *buf, size_t count) |
| 263 | { |
| 264 | struct qeth_card *card = dev_get_drvdata(dev); |
| 265 | struct qeth_ipaddr *addr; |
| 266 | char *tmp; |
| 267 | int i; |
| 268 | |
| 269 | if (!card) |
| 270 | return -EINVAL; |
| 271 | |
| 272 | if (card->info.type != QETH_CARD_TYPE_IQD) |
| 273 | return -EPERM; |
| 274 | if (card->state != CARD_STATE_DOWN && |
| 275 | card->state != CARD_STATE_RECOVER) |
| 276 | return -EPERM; |
| 277 | if (card->options.sniffer) |
| 278 | return -EPERM; |
| 279 | if (card->options.cq == QETH_CQ_NOTAVAILABLE) |
| 280 | return -EPERM; |
| 281 | |
| 282 | tmp = strsep((char **)&buf, "\n"); |
| 283 | if (strlen(tmp) > 8) |
| 284 | return -EINVAL; |
| 285 | |
| 286 | if (card->options.hsuid[0]) { |
| 287 | /* delete old ip address */ |
| 288 | addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 289 | if (!addr) |
Frank Blaschka | b333293 | 2011-08-08 01:33:59 +0000 | [diff] [blame] | 290 | return -ENOMEM; |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 291 | |
| 292 | addr->u.a6.addr.s6_addr32[0] = 0xfe800000; |
| 293 | addr->u.a6.addr.s6_addr32[1] = 0x00000000; |
| 294 | for (i = 8; i < 16; i++) |
| 295 | addr->u.a6.addr.s6_addr[i] = |
| 296 | card->options.hsuid[i - 8]; |
| 297 | addr->u.a6.pfxlen = 0; |
| 298 | addr->type = QETH_IP_TYPE_NORMAL; |
| 299 | |
Ursula Braun | 016930b | 2016-09-15 14:39:22 +0200 | [diff] [blame] | 300 | spin_lock_bh(&card->ip_lock); |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 301 | qeth_l3_delete_ip(card, addr); |
Ursula Braun | 016930b | 2016-09-15 14:39:22 +0200 | [diff] [blame] | 302 | spin_unlock_bh(&card->ip_lock); |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 303 | kfree(addr); |
Frank Blaschka | b333293 | 2011-08-08 01:33:59 +0000 | [diff] [blame] | 304 | } |
| 305 | |
| 306 | if (strlen(tmp) == 0) { |
| 307 | /* delete ip address only */ |
| 308 | card->options.hsuid[0] = '\0'; |
| 309 | if (card->dev) |
| 310 | memcpy(card->dev->perm_addr, card->options.hsuid, 9); |
| 311 | qeth_configure_cq(card, QETH_CQ_DISABLED); |
| 312 | return count; |
| 313 | } |
| 314 | |
| 315 | if (qeth_configure_cq(card, QETH_CQ_ENABLED)) |
| 316 | return -EPERM; |
| 317 | |
Kees Cook | 096a8aa | 2013-07-03 15:04:55 -0700 | [diff] [blame] | 318 | snprintf(card->options.hsuid, sizeof(card->options.hsuid), |
| 319 | "%-8s", tmp); |
Frank Blaschka | b333293 | 2011-08-08 01:33:59 +0000 | [diff] [blame] | 320 | ASCEBC(card->options.hsuid, 8); |
| 321 | if (card->dev) |
| 322 | memcpy(card->dev->perm_addr, card->options.hsuid, 9); |
| 323 | |
| 324 | addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6); |
| 325 | if (addr != NULL) { |
| 326 | addr->u.a6.addr.s6_addr32[0] = 0xfe800000; |
| 327 | addr->u.a6.addr.s6_addr32[1] = 0x00000000; |
| 328 | for (i = 8; i < 16; i++) |
| 329 | addr->u.a6.addr.s6_addr[i] = card->options.hsuid[i - 8]; |
| 330 | addr->u.a6.pfxlen = 0; |
| 331 | addr->type = QETH_IP_TYPE_NORMAL; |
| 332 | } else |
| 333 | return -ENOMEM; |
Ursula Braun | 016930b | 2016-09-15 14:39:22 +0200 | [diff] [blame] | 334 | |
| 335 | spin_lock_bh(&card->ip_lock); |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 336 | qeth_l3_add_ip(card, addr); |
Ursula Braun | 016930b | 2016-09-15 14:39:22 +0200 | [diff] [blame] | 337 | spin_unlock_bh(&card->ip_lock); |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 338 | kfree(addr); |
Frank Blaschka | b333293 | 2011-08-08 01:33:59 +0000 | [diff] [blame] | 339 | |
| 340 | return count; |
| 341 | } |
| 342 | |
| 343 | static DEVICE_ATTR(hsuid, 0644, qeth_l3_dev_hsuid_show, |
| 344 | qeth_l3_dev_hsuid_store); |
| 345 | |
| 346 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 347 | static struct attribute *qeth_l3_device_attrs[] = { |
| 348 | &dev_attr_route4.attr, |
| 349 | &dev_attr_route6.attr, |
| 350 | &dev_attr_fake_broadcast.attr, |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 351 | &dev_attr_sniffer.attr, |
Frank Blaschka | b333293 | 2011-08-08 01:33:59 +0000 | [diff] [blame] | 352 | &dev_attr_hsuid.attr, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 353 | NULL, |
| 354 | }; |
| 355 | |
| 356 | static struct attribute_group qeth_l3_device_attr_group = { |
| 357 | .attrs = qeth_l3_device_attrs, |
| 358 | }; |
| 359 | |
| 360 | static ssize_t qeth_l3_dev_ipato_enable_show(struct device *dev, |
| 361 | struct device_attribute *attr, char *buf) |
| 362 | { |
| 363 | struct qeth_card *card = dev_get_drvdata(dev); |
| 364 | |
| 365 | if (!card) |
| 366 | return -EINVAL; |
| 367 | |
| 368 | return sprintf(buf, "%i\n", card->ipato.enabled? 1:0); |
| 369 | } |
| 370 | |
| 371 | static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev, |
| 372 | struct device_attribute *attr, const char *buf, size_t count) |
| 373 | { |
| 374 | struct qeth_card *card = dev_get_drvdata(dev); |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 375 | struct qeth_ipaddr *addr; |
| 376 | int i, rc = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 377 | |
| 378 | if (!card) |
| 379 | return -EINVAL; |
| 380 | |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 381 | mutex_lock(&card->conf_mutex); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 382 | if ((card->state != CARD_STATE_DOWN) && |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 383 | (card->state != CARD_STATE_RECOVER)) { |
| 384 | rc = -EPERM; |
| 385 | goto out; |
| 386 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 387 | |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 388 | if (sysfs_streq(buf, "toggle")) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 389 | card->ipato.enabled = (card->ipato.enabled)? 0 : 1; |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 390 | } else if (sysfs_streq(buf, "1")) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 391 | card->ipato.enabled = 1; |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 392 | hash_for_each(card->ip_htable, i, addr, hnode) { |
| 393 | if ((addr->type == QETH_IP_TYPE_NORMAL) && |
| 394 | qeth_l3_is_addr_covered_by_ipato(card, addr)) |
| 395 | addr->set_flags |= |
Klaus-Dieter Wacker | 6298263 | 2010-07-22 23:15:03 +0000 | [diff] [blame] | 396 | QETH_IPA_SETIP_TAKEOVER_FLAG; |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 397 | } |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 398 | } else if (sysfs_streq(buf, "0")) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 399 | card->ipato.enabled = 0; |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 400 | hash_for_each(card->ip_htable, i, addr, hnode) { |
| 401 | if (addr->set_flags & |
| 402 | QETH_IPA_SETIP_TAKEOVER_FLAG) |
| 403 | addr->set_flags &= |
| 404 | ~QETH_IPA_SETIP_TAKEOVER_FLAG; |
| 405 | } |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 406 | } else |
| 407 | rc = -EINVAL; |
| 408 | out: |
| 409 | mutex_unlock(&card->conf_mutex); |
| 410 | return rc ? rc : count; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 411 | } |
| 412 | |
| 413 | static QETH_DEVICE_ATTR(ipato_enable, enable, 0644, |
| 414 | qeth_l3_dev_ipato_enable_show, |
| 415 | qeth_l3_dev_ipato_enable_store); |
| 416 | |
| 417 | static ssize_t qeth_l3_dev_ipato_invert4_show(struct device *dev, |
| 418 | struct device_attribute *attr, char *buf) |
| 419 | { |
| 420 | struct qeth_card *card = dev_get_drvdata(dev); |
| 421 | |
| 422 | if (!card) |
| 423 | return -EINVAL; |
| 424 | |
| 425 | return sprintf(buf, "%i\n", card->ipato.invert4? 1:0); |
| 426 | } |
| 427 | |
| 428 | static ssize_t qeth_l3_dev_ipato_invert4_store(struct device *dev, |
| 429 | struct device_attribute *attr, |
| 430 | const char *buf, size_t count) |
| 431 | { |
| 432 | struct qeth_card *card = dev_get_drvdata(dev); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 433 | int rc = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 434 | |
| 435 | if (!card) |
| 436 | return -EINVAL; |
| 437 | |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 438 | mutex_lock(&card->conf_mutex); |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 439 | if (sysfs_streq(buf, "toggle")) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 440 | card->ipato.invert4 = (card->ipato.invert4)? 0 : 1; |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 441 | else if (sysfs_streq(buf, "1")) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 442 | card->ipato.invert4 = 1; |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 443 | else if (sysfs_streq(buf, "0")) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 444 | card->ipato.invert4 = 0; |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 445 | else |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 446 | rc = -EINVAL; |
| 447 | mutex_unlock(&card->conf_mutex); |
| 448 | return rc ? rc : count; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 449 | } |
| 450 | |
| 451 | static QETH_DEVICE_ATTR(ipato_invert4, invert4, 0644, |
| 452 | qeth_l3_dev_ipato_invert4_show, |
| 453 | qeth_l3_dev_ipato_invert4_store); |
| 454 | |
| 455 | static ssize_t qeth_l3_dev_ipato_add_show(char *buf, struct qeth_card *card, |
| 456 | enum qeth_prot_versions proto) |
| 457 | { |
| 458 | struct qeth_ipato_entry *ipatoe; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 459 | char addr_str[40]; |
| 460 | int entry_len; /* length of 1 entry string, differs between v4 and v6 */ |
| 461 | int i = 0; |
| 462 | |
| 463 | entry_len = (proto == QETH_PROT_IPV4)? 12 : 40; |
| 464 | /* add strlen for "/<mask>\n" */ |
| 465 | entry_len += (proto == QETH_PROT_IPV4)? 5 : 6; |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 466 | spin_lock_bh(&card->ip_lock); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 467 | list_for_each_entry(ipatoe, &card->ipato.entries, entry) { |
| 468 | if (ipatoe->proto != proto) |
| 469 | continue; |
| 470 | /* String must not be longer than PAGE_SIZE. So we check if |
| 471 | * string length gets near PAGE_SIZE. Then we can savely display |
| 472 | * the next IPv6 address (worst case, compared to IPv4) */ |
| 473 | if ((PAGE_SIZE - i) <= entry_len) |
| 474 | break; |
| 475 | qeth_l3_ipaddr_to_string(proto, ipatoe->addr, addr_str); |
| 476 | i += snprintf(buf + i, PAGE_SIZE - i, |
| 477 | "%s/%i\n", addr_str, ipatoe->mask_bits); |
| 478 | } |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 479 | spin_unlock_bh(&card->ip_lock); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 480 | i += snprintf(buf + i, PAGE_SIZE - i, "\n"); |
| 481 | |
| 482 | return i; |
| 483 | } |
| 484 | |
| 485 | static ssize_t qeth_l3_dev_ipato_add4_show(struct device *dev, |
| 486 | struct device_attribute *attr, char *buf) |
| 487 | { |
| 488 | struct qeth_card *card = dev_get_drvdata(dev); |
| 489 | |
| 490 | if (!card) |
| 491 | return -EINVAL; |
| 492 | |
| 493 | return qeth_l3_dev_ipato_add_show(buf, card, QETH_PROT_IPV4); |
| 494 | } |
| 495 | |
| 496 | static int qeth_l3_parse_ipatoe(const char *buf, enum qeth_prot_versions proto, |
| 497 | u8 *addr, int *mask_bits) |
| 498 | { |
| 499 | const char *start, *end; |
| 500 | char *tmp; |
| 501 | char buffer[40] = {0, }; |
| 502 | |
| 503 | start = buf; |
| 504 | /* get address string */ |
| 505 | end = strchr(start, '/'); |
| 506 | if (!end || (end - start >= 40)) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 507 | return -EINVAL; |
| 508 | } |
| 509 | strncpy(buffer, start, end - start); |
| 510 | if (qeth_l3_string_to_ipaddr(buffer, proto, addr)) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 511 | return -EINVAL; |
| 512 | } |
| 513 | start = end + 1; |
| 514 | *mask_bits = simple_strtoul(start, &tmp, 10); |
| 515 | if (!strlen(start) || |
| 516 | (tmp == start) || |
| 517 | (*mask_bits > ((proto == QETH_PROT_IPV4) ? 32 : 128))) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 518 | return -EINVAL; |
| 519 | } |
| 520 | return 0; |
| 521 | } |
| 522 | |
| 523 | static ssize_t qeth_l3_dev_ipato_add_store(const char *buf, size_t count, |
| 524 | struct qeth_card *card, enum qeth_prot_versions proto) |
| 525 | { |
| 526 | struct qeth_ipato_entry *ipatoe; |
| 527 | u8 addr[16]; |
| 528 | int mask_bits; |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 529 | int rc = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 530 | |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 531 | mutex_lock(&card->conf_mutex); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 532 | rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits); |
| 533 | if (rc) |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 534 | goto out; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 535 | |
| 536 | ipatoe = kzalloc(sizeof(struct qeth_ipato_entry), GFP_KERNEL); |
| 537 | if (!ipatoe) { |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 538 | rc = -ENOMEM; |
| 539 | goto out; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 540 | } |
| 541 | ipatoe->proto = proto; |
| 542 | memcpy(ipatoe->addr, addr, (proto == QETH_PROT_IPV4)? 4:16); |
| 543 | ipatoe->mask_bits = mask_bits; |
| 544 | |
| 545 | rc = qeth_l3_add_ipato_entry(card, ipatoe); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 546 | if (rc) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 547 | kfree(ipatoe); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 548 | out: |
| 549 | mutex_unlock(&card->conf_mutex); |
| 550 | return rc ? rc : count; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 551 | } |
| 552 | |
| 553 | static ssize_t qeth_l3_dev_ipato_add4_store(struct device *dev, |
| 554 | struct device_attribute *attr, const char *buf, size_t count) |
| 555 | { |
| 556 | struct qeth_card *card = dev_get_drvdata(dev); |
| 557 | |
| 558 | if (!card) |
| 559 | return -EINVAL; |
| 560 | |
| 561 | return qeth_l3_dev_ipato_add_store(buf, count, card, QETH_PROT_IPV4); |
| 562 | } |
| 563 | |
| 564 | static QETH_DEVICE_ATTR(ipato_add4, add4, 0644, |
| 565 | qeth_l3_dev_ipato_add4_show, |
| 566 | qeth_l3_dev_ipato_add4_store); |
| 567 | |
| 568 | static ssize_t qeth_l3_dev_ipato_del_store(const char *buf, size_t count, |
| 569 | struct qeth_card *card, enum qeth_prot_versions proto) |
| 570 | { |
| 571 | u8 addr[16]; |
| 572 | int mask_bits; |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 573 | int rc = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 574 | |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 575 | mutex_lock(&card->conf_mutex); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 576 | rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 577 | if (!rc) |
| 578 | qeth_l3_del_ipato_entry(card, proto, addr, mask_bits); |
| 579 | mutex_unlock(&card->conf_mutex); |
| 580 | return rc ? rc : count; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 581 | } |
| 582 | |
| 583 | static ssize_t qeth_l3_dev_ipato_del4_store(struct device *dev, |
| 584 | struct device_attribute *attr, const char *buf, size_t count) |
| 585 | { |
| 586 | struct qeth_card *card = dev_get_drvdata(dev); |
| 587 | |
| 588 | if (!card) |
| 589 | return -EINVAL; |
| 590 | |
| 591 | return qeth_l3_dev_ipato_del_store(buf, count, card, QETH_PROT_IPV4); |
| 592 | } |
| 593 | |
| 594 | static QETH_DEVICE_ATTR(ipato_del4, del4, 0200, NULL, |
| 595 | qeth_l3_dev_ipato_del4_store); |
| 596 | |
| 597 | static ssize_t qeth_l3_dev_ipato_invert6_show(struct device *dev, |
| 598 | struct device_attribute *attr, char *buf) |
| 599 | { |
| 600 | struct qeth_card *card = dev_get_drvdata(dev); |
| 601 | |
| 602 | if (!card) |
| 603 | return -EINVAL; |
| 604 | |
| 605 | return sprintf(buf, "%i\n", card->ipato.invert6? 1:0); |
| 606 | } |
| 607 | |
| 608 | static ssize_t qeth_l3_dev_ipato_invert6_store(struct device *dev, |
| 609 | struct device_attribute *attr, const char *buf, size_t count) |
| 610 | { |
| 611 | struct qeth_card *card = dev_get_drvdata(dev); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 612 | int rc = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 613 | |
| 614 | if (!card) |
| 615 | return -EINVAL; |
| 616 | |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 617 | mutex_lock(&card->conf_mutex); |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 618 | if (sysfs_streq(buf, "toggle")) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 619 | card->ipato.invert6 = (card->ipato.invert6)? 0 : 1; |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 620 | else if (sysfs_streq(buf, "1")) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 621 | card->ipato.invert6 = 1; |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 622 | else if (sysfs_streq(buf, "0")) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 623 | card->ipato.invert6 = 0; |
Eugene Crosser | 7e846d6b | 2015-01-16 14:05:48 +0100 | [diff] [blame] | 624 | else |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 625 | rc = -EINVAL; |
| 626 | mutex_unlock(&card->conf_mutex); |
| 627 | return rc ? rc : count; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 628 | } |
| 629 | |
| 630 | static QETH_DEVICE_ATTR(ipato_invert6, invert6, 0644, |
| 631 | qeth_l3_dev_ipato_invert6_show, |
| 632 | qeth_l3_dev_ipato_invert6_store); |
| 633 | |
| 634 | |
| 635 | static ssize_t qeth_l3_dev_ipato_add6_show(struct device *dev, |
| 636 | struct device_attribute *attr, char *buf) |
| 637 | { |
| 638 | struct qeth_card *card = dev_get_drvdata(dev); |
| 639 | |
| 640 | if (!card) |
| 641 | return -EINVAL; |
| 642 | |
| 643 | return qeth_l3_dev_ipato_add_show(buf, card, QETH_PROT_IPV6); |
| 644 | } |
| 645 | |
| 646 | static ssize_t qeth_l3_dev_ipato_add6_store(struct device *dev, |
| 647 | struct device_attribute *attr, const char *buf, size_t count) |
| 648 | { |
| 649 | struct qeth_card *card = dev_get_drvdata(dev); |
| 650 | |
| 651 | if (!card) |
| 652 | return -EINVAL; |
| 653 | |
| 654 | return qeth_l3_dev_ipato_add_store(buf, count, card, QETH_PROT_IPV6); |
| 655 | } |
| 656 | |
| 657 | static QETH_DEVICE_ATTR(ipato_add6, add6, 0644, |
| 658 | qeth_l3_dev_ipato_add6_show, |
| 659 | qeth_l3_dev_ipato_add6_store); |
| 660 | |
| 661 | static ssize_t qeth_l3_dev_ipato_del6_store(struct device *dev, |
| 662 | struct device_attribute *attr, const char *buf, size_t count) |
| 663 | { |
| 664 | struct qeth_card *card = dev_get_drvdata(dev); |
| 665 | |
| 666 | if (!card) |
| 667 | return -EINVAL; |
| 668 | |
| 669 | return qeth_l3_dev_ipato_del_store(buf, count, card, QETH_PROT_IPV6); |
| 670 | } |
| 671 | |
| 672 | static QETH_DEVICE_ATTR(ipato_del6, del6, 0200, NULL, |
| 673 | qeth_l3_dev_ipato_del6_store); |
| 674 | |
| 675 | static struct attribute *qeth_ipato_device_attrs[] = { |
| 676 | &dev_attr_ipato_enable.attr, |
| 677 | &dev_attr_ipato_invert4.attr, |
| 678 | &dev_attr_ipato_add4.attr, |
| 679 | &dev_attr_ipato_del4.attr, |
| 680 | &dev_attr_ipato_invert6.attr, |
| 681 | &dev_attr_ipato_add6.attr, |
| 682 | &dev_attr_ipato_del6.attr, |
| 683 | NULL, |
| 684 | }; |
| 685 | |
| 686 | static struct attribute_group qeth_device_ipato_group = { |
| 687 | .name = "ipa_takeover", |
| 688 | .attrs = qeth_ipato_device_attrs, |
| 689 | }; |
| 690 | |
| 691 | static ssize_t qeth_l3_dev_vipa_add_show(char *buf, struct qeth_card *card, |
| 692 | enum qeth_prot_versions proto) |
| 693 | { |
| 694 | struct qeth_ipaddr *ipaddr; |
| 695 | char addr_str[40]; |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 696 | int str_len = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 697 | int entry_len; /* length of 1 entry string, differs between v4 and v6 */ |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 698 | int i; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 699 | |
| 700 | entry_len = (proto == QETH_PROT_IPV4)? 12 : 40; |
| 701 | entry_len += 2; /* \n + terminator */ |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 702 | spin_lock_bh(&card->ip_lock); |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 703 | hash_for_each(card->ip_htable, i, ipaddr, hnode) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 704 | if (ipaddr->proto != proto) |
| 705 | continue; |
| 706 | if (ipaddr->type != QETH_IP_TYPE_VIPA) |
| 707 | continue; |
| 708 | /* String must not be longer than PAGE_SIZE. So we check if |
| 709 | * string length gets near PAGE_SIZE. Then we can savely display |
| 710 | * the next IPv6 address (worst case, compared to IPv4) */ |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 711 | if ((PAGE_SIZE - str_len) <= entry_len) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 712 | break; |
| 713 | qeth_l3_ipaddr_to_string(proto, (const u8 *)&ipaddr->u, |
| 714 | addr_str); |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 715 | str_len += snprintf(buf + str_len, PAGE_SIZE - str_len, "%s\n", |
| 716 | addr_str); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 717 | } |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 718 | spin_unlock_bh(&card->ip_lock); |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 719 | str_len += snprintf(buf + str_len, PAGE_SIZE - str_len, "\n"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 720 | |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 721 | return str_len; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 722 | } |
| 723 | |
| 724 | static ssize_t qeth_l3_dev_vipa_add4_show(struct device *dev, |
| 725 | struct device_attribute *attr, char *buf) |
| 726 | { |
| 727 | struct qeth_card *card = dev_get_drvdata(dev); |
| 728 | |
| 729 | if (!card) |
| 730 | return -EINVAL; |
| 731 | |
| 732 | return qeth_l3_dev_vipa_add_show(buf, card, QETH_PROT_IPV4); |
| 733 | } |
| 734 | |
| 735 | static int qeth_l3_parse_vipae(const char *buf, enum qeth_prot_versions proto, |
| 736 | u8 *addr) |
| 737 | { |
| 738 | if (qeth_l3_string_to_ipaddr(buf, proto, addr)) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 739 | return -EINVAL; |
| 740 | } |
| 741 | return 0; |
| 742 | } |
| 743 | |
| 744 | static ssize_t qeth_l3_dev_vipa_add_store(const char *buf, size_t count, |
| 745 | struct qeth_card *card, enum qeth_prot_versions proto) |
| 746 | { |
| 747 | u8 addr[16] = {0, }; |
| 748 | int rc; |
| 749 | |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 750 | mutex_lock(&card->conf_mutex); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 751 | rc = qeth_l3_parse_vipae(buf, proto, addr); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 752 | if (!rc) |
| 753 | rc = qeth_l3_add_vipa(card, proto, addr); |
| 754 | mutex_unlock(&card->conf_mutex); |
| 755 | return rc ? rc : count; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 756 | } |
| 757 | |
| 758 | static ssize_t qeth_l3_dev_vipa_add4_store(struct device *dev, |
| 759 | struct device_attribute *attr, const char *buf, size_t count) |
| 760 | { |
| 761 | struct qeth_card *card = dev_get_drvdata(dev); |
| 762 | |
| 763 | if (!card) |
| 764 | return -EINVAL; |
| 765 | |
| 766 | return qeth_l3_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV4); |
| 767 | } |
| 768 | |
| 769 | static QETH_DEVICE_ATTR(vipa_add4, add4, 0644, |
| 770 | qeth_l3_dev_vipa_add4_show, |
| 771 | qeth_l3_dev_vipa_add4_store); |
| 772 | |
| 773 | static ssize_t qeth_l3_dev_vipa_del_store(const char *buf, size_t count, |
| 774 | struct qeth_card *card, enum qeth_prot_versions proto) |
| 775 | { |
| 776 | u8 addr[16]; |
| 777 | int rc; |
| 778 | |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 779 | mutex_lock(&card->conf_mutex); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 780 | rc = qeth_l3_parse_vipae(buf, proto, addr); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 781 | if (!rc) |
| 782 | qeth_l3_del_vipa(card, proto, addr); |
| 783 | mutex_unlock(&card->conf_mutex); |
| 784 | return rc ? rc : count; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 785 | } |
| 786 | |
| 787 | static ssize_t qeth_l3_dev_vipa_del4_store(struct device *dev, |
| 788 | struct device_attribute *attr, const char *buf, size_t count) |
| 789 | { |
| 790 | struct qeth_card *card = dev_get_drvdata(dev); |
| 791 | |
| 792 | if (!card) |
| 793 | return -EINVAL; |
| 794 | |
| 795 | return qeth_l3_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV4); |
| 796 | } |
| 797 | |
| 798 | static QETH_DEVICE_ATTR(vipa_del4, del4, 0200, NULL, |
| 799 | qeth_l3_dev_vipa_del4_store); |
| 800 | |
| 801 | static ssize_t qeth_l3_dev_vipa_add6_show(struct device *dev, |
| 802 | struct device_attribute *attr, char *buf) |
| 803 | { |
| 804 | struct qeth_card *card = dev_get_drvdata(dev); |
| 805 | |
| 806 | if (!card) |
| 807 | return -EINVAL; |
| 808 | |
| 809 | return qeth_l3_dev_vipa_add_show(buf, card, QETH_PROT_IPV6); |
| 810 | } |
| 811 | |
| 812 | static ssize_t qeth_l3_dev_vipa_add6_store(struct device *dev, |
| 813 | struct device_attribute *attr, const char *buf, size_t count) |
| 814 | { |
| 815 | struct qeth_card *card = dev_get_drvdata(dev); |
| 816 | |
| 817 | if (!card) |
| 818 | return -EINVAL; |
| 819 | |
| 820 | return qeth_l3_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV6); |
| 821 | } |
| 822 | |
| 823 | static QETH_DEVICE_ATTR(vipa_add6, add6, 0644, |
| 824 | qeth_l3_dev_vipa_add6_show, |
| 825 | qeth_l3_dev_vipa_add6_store); |
| 826 | |
| 827 | static ssize_t qeth_l3_dev_vipa_del6_store(struct device *dev, |
| 828 | struct device_attribute *attr, const char *buf, size_t count) |
| 829 | { |
| 830 | struct qeth_card *card = dev_get_drvdata(dev); |
| 831 | |
| 832 | if (!card) |
| 833 | return -EINVAL; |
| 834 | |
| 835 | return qeth_l3_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV6); |
| 836 | } |
| 837 | |
| 838 | static QETH_DEVICE_ATTR(vipa_del6, del6, 0200, NULL, |
| 839 | qeth_l3_dev_vipa_del6_store); |
| 840 | |
| 841 | static struct attribute *qeth_vipa_device_attrs[] = { |
| 842 | &dev_attr_vipa_add4.attr, |
| 843 | &dev_attr_vipa_del4.attr, |
| 844 | &dev_attr_vipa_add6.attr, |
| 845 | &dev_attr_vipa_del6.attr, |
| 846 | NULL, |
| 847 | }; |
| 848 | |
| 849 | static struct attribute_group qeth_device_vipa_group = { |
| 850 | .name = "vipa", |
| 851 | .attrs = qeth_vipa_device_attrs, |
| 852 | }; |
| 853 | |
| 854 | static ssize_t qeth_l3_dev_rxip_add_show(char *buf, struct qeth_card *card, |
| 855 | enum qeth_prot_versions proto) |
| 856 | { |
| 857 | struct qeth_ipaddr *ipaddr; |
| 858 | char addr_str[40]; |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 859 | int str_len = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 860 | int entry_len; /* length of 1 entry string, differs between v4 and v6 */ |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 861 | int i; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 862 | |
| 863 | entry_len = (proto == QETH_PROT_IPV4)? 12 : 40; |
| 864 | entry_len += 2; /* \n + terminator */ |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 865 | spin_lock_bh(&card->ip_lock); |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 866 | hash_for_each(card->ip_htable, i, ipaddr, hnode) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 867 | if (ipaddr->proto != proto) |
| 868 | continue; |
| 869 | if (ipaddr->type != QETH_IP_TYPE_RXIP) |
| 870 | continue; |
| 871 | /* String must not be longer than PAGE_SIZE. So we check if |
| 872 | * string length gets near PAGE_SIZE. Then we can savely display |
| 873 | * the next IPv6 address (worst case, compared to IPv4) */ |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 874 | if ((PAGE_SIZE - str_len) <= entry_len) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 875 | break; |
| 876 | qeth_l3_ipaddr_to_string(proto, (const u8 *)&ipaddr->u, |
| 877 | addr_str); |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 878 | str_len += snprintf(buf + str_len, PAGE_SIZE - str_len, "%s\n", |
| 879 | addr_str); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 880 | } |
Lakhvich Dmitriy | 5f78e29 | 2016-06-16 16:18:58 +0200 | [diff] [blame] | 881 | spin_unlock_bh(&card->ip_lock); |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 882 | str_len += snprintf(buf + str_len, PAGE_SIZE - str_len, "\n"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 883 | |
Ursula Braun | c4d567e | 2017-01-12 15:48:43 +0100 | [diff] [blame] | 884 | return str_len; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 885 | } |
| 886 | |
| 887 | static ssize_t qeth_l3_dev_rxip_add4_show(struct device *dev, |
| 888 | struct device_attribute *attr, char *buf) |
| 889 | { |
| 890 | struct qeth_card *card = dev_get_drvdata(dev); |
| 891 | |
| 892 | if (!card) |
| 893 | return -EINVAL; |
| 894 | |
| 895 | return qeth_l3_dev_rxip_add_show(buf, card, QETH_PROT_IPV4); |
| 896 | } |
| 897 | |
| 898 | static int qeth_l3_parse_rxipe(const char *buf, enum qeth_prot_versions proto, |
| 899 | u8 *addr) |
| 900 | { |
| 901 | if (qeth_l3_string_to_ipaddr(buf, proto, addr)) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 902 | return -EINVAL; |
| 903 | } |
| 904 | return 0; |
| 905 | } |
| 906 | |
| 907 | static ssize_t qeth_l3_dev_rxip_add_store(const char *buf, size_t count, |
| 908 | struct qeth_card *card, enum qeth_prot_versions proto) |
| 909 | { |
| 910 | u8 addr[16] = {0, }; |
| 911 | int rc; |
| 912 | |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 913 | mutex_lock(&card->conf_mutex); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 914 | rc = qeth_l3_parse_rxipe(buf, proto, addr); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 915 | if (!rc) |
| 916 | rc = qeth_l3_add_rxip(card, proto, addr); |
| 917 | mutex_unlock(&card->conf_mutex); |
| 918 | return rc ? rc : count; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 919 | } |
| 920 | |
| 921 | static ssize_t qeth_l3_dev_rxip_add4_store(struct device *dev, |
| 922 | struct device_attribute *attr, const char *buf, size_t count) |
| 923 | { |
| 924 | struct qeth_card *card = dev_get_drvdata(dev); |
| 925 | |
| 926 | if (!card) |
| 927 | return -EINVAL; |
| 928 | |
| 929 | return qeth_l3_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV4); |
| 930 | } |
| 931 | |
| 932 | static QETH_DEVICE_ATTR(rxip_add4, add4, 0644, |
| 933 | qeth_l3_dev_rxip_add4_show, |
| 934 | qeth_l3_dev_rxip_add4_store); |
| 935 | |
| 936 | static ssize_t qeth_l3_dev_rxip_del_store(const char *buf, size_t count, |
| 937 | struct qeth_card *card, enum qeth_prot_versions proto) |
| 938 | { |
| 939 | u8 addr[16]; |
| 940 | int rc; |
| 941 | |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 942 | mutex_lock(&card->conf_mutex); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 943 | rc = qeth_l3_parse_rxipe(buf, proto, addr); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 944 | if (!rc) |
| 945 | qeth_l3_del_rxip(card, proto, addr); |
| 946 | mutex_unlock(&card->conf_mutex); |
| 947 | return rc ? rc : count; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 948 | } |
| 949 | |
| 950 | static ssize_t qeth_l3_dev_rxip_del4_store(struct device *dev, |
| 951 | struct device_attribute *attr, const char *buf, size_t count) |
| 952 | { |
| 953 | struct qeth_card *card = dev_get_drvdata(dev); |
| 954 | |
| 955 | if (!card) |
| 956 | return -EINVAL; |
| 957 | |
| 958 | return qeth_l3_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV4); |
| 959 | } |
| 960 | |
| 961 | static QETH_DEVICE_ATTR(rxip_del4, del4, 0200, NULL, |
| 962 | qeth_l3_dev_rxip_del4_store); |
| 963 | |
| 964 | static ssize_t qeth_l3_dev_rxip_add6_show(struct device *dev, |
| 965 | struct device_attribute *attr, char *buf) |
| 966 | { |
| 967 | struct qeth_card *card = dev_get_drvdata(dev); |
| 968 | |
| 969 | if (!card) |
| 970 | return -EINVAL; |
| 971 | |
| 972 | return qeth_l3_dev_rxip_add_show(buf, card, QETH_PROT_IPV6); |
| 973 | } |
| 974 | |
| 975 | static ssize_t qeth_l3_dev_rxip_add6_store(struct device *dev, |
| 976 | struct device_attribute *attr, const char *buf, size_t count) |
| 977 | { |
| 978 | struct qeth_card *card = dev_get_drvdata(dev); |
| 979 | |
| 980 | if (!card) |
| 981 | return -EINVAL; |
| 982 | |
| 983 | return qeth_l3_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV6); |
| 984 | } |
| 985 | |
| 986 | static QETH_DEVICE_ATTR(rxip_add6, add6, 0644, |
| 987 | qeth_l3_dev_rxip_add6_show, |
| 988 | qeth_l3_dev_rxip_add6_store); |
| 989 | |
| 990 | static ssize_t qeth_l3_dev_rxip_del6_store(struct device *dev, |
| 991 | struct device_attribute *attr, const char *buf, size_t count) |
| 992 | { |
| 993 | struct qeth_card *card = dev_get_drvdata(dev); |
| 994 | |
| 995 | if (!card) |
| 996 | return -EINVAL; |
| 997 | |
| 998 | return qeth_l3_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV6); |
| 999 | } |
| 1000 | |
| 1001 | static QETH_DEVICE_ATTR(rxip_del6, del6, 0200, NULL, |
| 1002 | qeth_l3_dev_rxip_del6_store); |
| 1003 | |
| 1004 | static struct attribute *qeth_rxip_device_attrs[] = { |
| 1005 | &dev_attr_rxip_add4.attr, |
| 1006 | &dev_attr_rxip_del4.attr, |
| 1007 | &dev_attr_rxip_add6.attr, |
| 1008 | &dev_attr_rxip_del6.attr, |
| 1009 | NULL, |
| 1010 | }; |
| 1011 | |
| 1012 | static struct attribute_group qeth_device_rxip_group = { |
| 1013 | .name = "rxip", |
| 1014 | .attrs = qeth_rxip_device_attrs, |
| 1015 | }; |
| 1016 | |
| 1017 | int qeth_l3_create_device_attributes(struct device *dev) |
| 1018 | { |
| 1019 | int ret; |
| 1020 | |
| 1021 | ret = sysfs_create_group(&dev->kobj, &qeth_l3_device_attr_group); |
| 1022 | if (ret) |
| 1023 | return ret; |
| 1024 | |
| 1025 | ret = sysfs_create_group(&dev->kobj, &qeth_device_ipato_group); |
| 1026 | if (ret) { |
| 1027 | sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group); |
| 1028 | return ret; |
| 1029 | } |
| 1030 | |
| 1031 | ret = sysfs_create_group(&dev->kobj, &qeth_device_vipa_group); |
| 1032 | if (ret) { |
| 1033 | sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group); |
| 1034 | sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group); |
| 1035 | return ret; |
| 1036 | } |
| 1037 | |
| 1038 | ret = sysfs_create_group(&dev->kobj, &qeth_device_rxip_group); |
| 1039 | if (ret) { |
| 1040 | sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group); |
| 1041 | sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group); |
| 1042 | sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group); |
| 1043 | return ret; |
| 1044 | } |
| 1045 | return 0; |
| 1046 | } |
| 1047 | |
| 1048 | void qeth_l3_remove_device_attributes(struct device *dev) |
| 1049 | { |
| 1050 | sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group); |
| 1051 | sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group); |
| 1052 | sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group); |
| 1053 | sysfs_remove_group(&dev->kobj, &qeth_device_rxip_group); |
| 1054 | } |