| | 1 | /* Copyright (C) 2010-2013 B.A.T.M.A.N. contributors: |
| | 2 | * |
| | 3 | * Marek Lindner |
| | 4 | * |
| | 5 | * This program is free software; you can redistribute it and/or |
| | 6 | * modify it under the terms of version 2 of the GNU General Public |
| | 7 | * License as published by the Free Software Foundation. |
| | 8 | * |
| | 9 | * This program is distributed in the hope that it will be useful, but |
| | 10 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| | 12 | * General Public License for more details. |
| | 13 | * |
| | 14 | * You should have received a copy of the GNU General Public License |
| | 15 | * along with this program; if not, write to the Free Software |
| | 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| | 17 | * 02110-1301, USA |
| | 18 | */ |
| | 19 | |
| | 20 | #include "main.h" |
| | 21 | #include "sysfs.h" |
| | 22 | #include "translation-table.h" |
| | 23 | #include "distributed-arp-table.h" |
| | 24 | #include "originator.h" |
| | 25 | #include "hard-interface.h" |
| | 26 | #include "gateway_common.h" |
| | 27 | #include "gateway_client.h" |
| | 28 | #include "vis.h" |
| | 29 | |
| | 30 | static struct net_device *batadv_kobj_to_netdev(struct kobject *obj) |
| | 31 | { |
| | 32 | struct device *dev = container_of(obj->parent, struct device, kobj); |
| | 33 | return to_net_dev(dev); |
| | 34 | } |
| | 35 | |
| | 36 | static struct batadv_priv *batadv_kobj_to_batpriv(struct kobject *obj) |
| | 37 | { |
| | 38 | struct net_device *net_dev = batadv_kobj_to_netdev(obj); |
| | 39 | return netdev_priv(net_dev); |
| | 40 | } |
| | 41 | |
| | 42 | #define BATADV_UEV_TYPE_VAR "BATTYPE=" |
| | 43 | #define BATADV_UEV_ACTION_VAR "BATACTION=" |
| | 44 | #define BATADV_UEV_DATA_VAR "BATDATA=" |
| | 45 | |
| | 46 | static char *batadv_uev_action_str[] = { |
| | 47 | "add", |
| | 48 | "del", |
| | 49 | "change" |
| | 50 | }; |
| | 51 | |
| | 52 | static char *batadv_uev_type_str[] = { |
| | 53 | "gw" |
| | 54 | }; |
| | 55 | |
| | 56 | /* Use this, if you have customized show and store functions */ |
| | 57 | #define BATADV_ATTR(_name, _mode, _show, _store) \ |
| | 58 | struct batadv_attribute batadv_attr_##_name = { \ |
| | 59 | .attr = {.name = __stringify(_name), \ |
| | 60 | .mode = _mode }, \ |
| | 61 | .show = _show, \ |
| | 62 | .store = _store, \ |
| | 63 | }; |
| | 64 | |
| | 65 | #define BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ |
| | 66 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
| | 67 | struct attribute *attr, char *buff, \ |
| | 68 | size_t count) \ |
| | 69 | { \ |
| | 70 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
| | 71 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
| | 72 | return __batadv_store_bool_attr(buff, count, _post_func, attr, \ |
| | 73 | &bat_priv->_name, net_dev); \ |
| | 74 | } |
| | 75 | |
| | 76 | #define BATADV_ATTR_SIF_SHOW_BOOL(_name) \ |
| | 77 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
| | 78 | struct attribute *attr, char *buff) \ |
| | 79 | { \ |
| | 80 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
| | 81 | return sprintf(buff, "%s\n", \ |
| | 82 | atomic_read(&bat_priv->_name) == 0 ? \ |
| | 83 | "disabled" : "enabled"); \ |
| | 84 | } \ |
| | 85 | |
| | 86 | /* Use this, if you are going to turn a [name] in the soft-interface |
| | 87 | * (bat_priv) on or off |
| | 88 | */ |
| | 89 | #define BATADV_ATTR_SIF_BOOL(_name, _mode, _post_func) \ |
| | 90 | static BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ |
| | 91 | static BATADV_ATTR_SIF_SHOW_BOOL(_name) \ |
| | 92 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ |
| | 93 | batadv_store_##_name) |
| | 94 | |
| | 95 | |
| | 96 | #define BATADV_ATTR_SIF_STORE_UINT(_name, _min, _max, _post_func) \ |
| | 97 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
| | 98 | struct attribute *attr, char *buff, \ |
| | 99 | size_t count) \ |
| | 100 | { \ |
| | 101 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
| | 102 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
| | 103 | return __batadv_store_uint_attr(buff, count, _min, _max, \ |
| | 104 | _post_func, attr, \ |
| | 105 | &bat_priv->_name, net_dev); \ |
| | 106 | } |
| | 107 | |
| | 108 | #define BATADV_ATTR_SIF_SHOW_UINT(_name) \ |
| | 109 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
| | 110 | struct attribute *attr, char *buff) \ |
| | 111 | { \ |
| | 112 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
| | 113 | return sprintf(buff, "%i\n", atomic_read(&bat_priv->_name)); \ |
| | 114 | } \ |
| | 115 | |
| | 116 | /* Use this, if you are going to set [name] in the soft-interface |
| | 117 | * (bat_priv) to an unsigned integer value |
| | 118 | */ |
| | 119 | #define BATADV_ATTR_SIF_UINT(_name, _mode, _min, _max, _post_func) \ |
| | 120 | static BATADV_ATTR_SIF_STORE_UINT(_name, _min, _max, _post_func)\ |
| | 121 | static BATADV_ATTR_SIF_SHOW_UINT(_name) \ |
| | 122 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ |
| | 123 | batadv_store_##_name) |
| | 124 | |
| | 125 | |
| | 126 | static int batadv_store_bool_attr(char *buff, size_t count, |
| | 127 | struct net_device *net_dev, |
| | 128 | const char *attr_name, atomic_t *attr) |
| | 129 | { |
| | 130 | int enabled = -1; |
| | 131 | |
| | 132 | if (buff[count - 1] == '\n') |
| | 133 | buff[count - 1] = '\0'; |
| | 134 | |
| | 135 | if ((strncmp(buff, "1", 2) == 0) || |
| | 136 | (strncmp(buff, "enable", 7) == 0) || |
| | 137 | (strncmp(buff, "enabled", 8) == 0)) |
| | 138 | enabled = 1; |
| | 139 | |
| | 140 | if ((strncmp(buff, "0", 2) == 0) || |
| | 141 | (strncmp(buff, "disable", 8) == 0) || |
| | 142 | (strncmp(buff, "disabled", 9) == 0)) |
| | 143 | enabled = 0; |
| | 144 | |
| | 145 | if (enabled < 0) { |
| | 146 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
| | 147 | attr_name, buff); |
| | 148 | return -EINVAL; |
| | 149 | } |
| | 150 | |
| | 151 | if (atomic_read(attr) == enabled) |
| | 152 | return count; |
| | 153 | |
| | 154 | batadv_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name, |
| | 155 | atomic_read(attr) == 1 ? "enabled" : "disabled", |
| | 156 | enabled == 1 ? "enabled" : "disabled"); |
| | 157 | |
| | 158 | atomic_set(attr, (unsigned int)enabled); |
| | 159 | return count; |
| | 160 | } |
| | 161 | |
| | 162 | static inline ssize_t |
| | 163 | __batadv_store_bool_attr(char *buff, size_t count, |
| | 164 | void (*post_func)(struct net_device *), |
| | 165 | struct attribute *attr, |
| | 166 | atomic_t *attr_store, struct net_device *net_dev) |
| | 167 | { |
| | 168 | int ret; |
| | 169 | |
| | 170 | ret = batadv_store_bool_attr(buff, count, net_dev, attr->name, |
| | 171 | attr_store); |
| | 172 | if (post_func && ret) |
| | 173 | post_func(net_dev); |
| | 174 | |
| | 175 | return ret; |
| | 176 | } |
| | 177 | |
| | 178 | static int batadv_store_uint_attr(const char *buff, size_t count, |
| | 179 | struct net_device *net_dev, |
| | 180 | const char *attr_name, |
| | 181 | unsigned int min, unsigned int max, |
| | 182 | atomic_t *attr) |
| | 183 | { |
| | 184 | unsigned long uint_val; |
| | 185 | int ret; |
| | 186 | |
| | 187 | ret = kstrtoul(buff, 10, &uint_val); |
| | 188 | if (ret) { |
| | 189 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
| | 190 | attr_name, buff); |
| | 191 | return -EINVAL; |
| | 192 | } |
| | 193 | |
| | 194 | if (uint_val < min) { |
| | 195 | batadv_info(net_dev, "%s: Value is too small: %lu min: %u\n", |
| | 196 | attr_name, uint_val, min); |
| | 197 | return -EINVAL; |
| | 198 | } |
| | 199 | |
| | 200 | if (uint_val > max) { |
| | 201 | batadv_info(net_dev, "%s: Value is too big: %lu max: %u\n", |
| | 202 | attr_name, uint_val, max); |
| | 203 | return -EINVAL; |
| | 204 | } |
| | 205 | |
| | 206 | if (atomic_read(attr) == uint_val) |
| | 207 | return count; |
| | 208 | |
| | 209 | batadv_info(net_dev, "%s: Changing from: %i to: %lu\n", |
| | 210 | attr_name, atomic_read(attr), uint_val); |
| | 211 | |
| | 212 | atomic_set(attr, uint_val); |
| | 213 | return count; |
| | 214 | } |
| | 215 | |
| | 216 | static inline ssize_t |
| | 217 | __batadv_store_uint_attr(const char *buff, size_t count, |
| | 218 | int min, int max, |
| | 219 | void (*post_func)(struct net_device *), |
| | 220 | const struct attribute *attr, |
| | 221 | atomic_t *attr_store, struct net_device *net_dev) |
| | 222 | { |
| | 223 | int ret; |
| | 224 | |
| | 225 | ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max, |
| | 226 | attr_store); |
| | 227 | if (post_func && ret) |
| | 228 | post_func(net_dev); |
| | 229 | |
| | 230 | return ret; |
| | 231 | } |
| | 232 | |
| | 233 | static ssize_t batadv_show_vis_mode(struct kobject *kobj, |
| | 234 | struct attribute *attr, char *buff) |
| | 235 | { |
| | 236 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
| | 237 | int vis_mode = atomic_read(&bat_priv->vis_mode); |
| | 238 | const char *mode; |
| | 239 | |
| | 240 | if (vis_mode == BATADV_VIS_TYPE_CLIENT_UPDATE) |
| | 241 | mode = "client"; |
| | 242 | else |
| | 243 | mode = "server"; |
| | 244 | |
| | 245 | return sprintf(buff, "%s\n", mode); |
| | 246 | } |
| | 247 | |
| | 248 | static ssize_t batadv_store_vis_mode(struct kobject *kobj, |
| | 249 | struct attribute *attr, char *buff, |
| | 250 | size_t count) |
| | 251 | { |
| | 252 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
| | 253 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
| | 254 | unsigned long val; |
| | 255 | int ret, vis_mode_tmp = -1; |
| | 256 | const char *old_mode, *new_mode; |
| | 257 | |
| | 258 | ret = kstrtoul(buff, 10, &val); |
| | 259 | |
| | 260 | if (((count == 2) && (!ret) && |
| | 261 | (val == BATADV_VIS_TYPE_CLIENT_UPDATE)) || |
| | 262 | (strncmp(buff, "client", 6) == 0) || |
| | 263 | (strncmp(buff, "off", 3) == 0)) |
| | 264 | vis_mode_tmp = BATADV_VIS_TYPE_CLIENT_UPDATE; |
| | 265 | |
| | 266 | if (((count == 2) && (!ret) && |
| | 267 | (val == BATADV_VIS_TYPE_SERVER_SYNC)) || |
| | 268 | (strncmp(buff, "server", 6) == 0)) |
| | 269 | vis_mode_tmp = BATADV_VIS_TYPE_SERVER_SYNC; |
| | 270 | |
| | 271 | if (vis_mode_tmp < 0) { |
| | 272 | if (buff[count - 1] == '\n') |
| | 273 | buff[count - 1] = '\0'; |
| | 274 | |
| | 275 | batadv_info(net_dev, |
| | 276 | "Invalid parameter for 'vis mode' setting received: %s\n", |
| | 277 | buff); |
| | 278 | return -EINVAL; |
| | 279 | } |
| | 280 | |
| | 281 | if (atomic_read(&bat_priv->vis_mode) == vis_mode_tmp) |
| | 282 | return count; |
| | 283 | |
| | 284 | if (atomic_read(&bat_priv->vis_mode) == BATADV_VIS_TYPE_CLIENT_UPDATE) |
| | 285 | old_mode = "client"; |
| | 286 | else |
| | 287 | old_mode = "server"; |
| | 288 | |
| | 289 | if (vis_mode_tmp == BATADV_VIS_TYPE_CLIENT_UPDATE) |
| | 290 | new_mode = "client"; |
| | 291 | else |
| | 292 | new_mode = "server"; |
| | 293 | |
| | 294 | batadv_info(net_dev, "Changing vis mode from: %s to: %s\n", old_mode, |
| | 295 | new_mode); |
| | 296 | |
| | 297 | atomic_set(&bat_priv->vis_mode, (unsigned int)vis_mode_tmp); |
| | 298 | return count; |
| | 299 | } |
| | 300 | |
| | 301 | static ssize_t batadv_show_bat_algo(struct kobject *kobj, |
| | 302 | struct attribute *attr, char *buff) |
| | 303 | { |
| | 304 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
| | 305 | return sprintf(buff, "%s\n", bat_priv->bat_algo_ops->name); |
| | 306 | } |
| | 307 | |
| | 308 | static void batadv_post_gw_deselect(struct net_device *net_dev) |
| | 309 | { |
| | 310 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
| | 311 | batadv_gw_deselect(bat_priv); |
| | 312 | } |
| | 313 | |
| | 314 | static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr, |
| | 315 | char *buff) |
| | 316 | { |
| | 317 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
| | 318 | int bytes_written; |
| | 319 | |
| | 320 | switch (atomic_read(&bat_priv->gw_mode)) { |
| | 321 | case BATADV_GW_MODE_CLIENT: |
| | 322 | bytes_written = sprintf(buff, "%s\n", |
| | 323 | BATADV_GW_MODE_CLIENT_NAME); |
| | 324 | break; |
| | 325 | case BATADV_GW_MODE_SERVER: |
| | 326 | bytes_written = sprintf(buff, "%s\n", |
| | 327 | BATADV_GW_MODE_SERVER_NAME); |
| | 328 | break; |
| | 329 | default: |
| | 330 | bytes_written = sprintf(buff, "%s\n", |
| | 331 | BATADV_GW_MODE_OFF_NAME); |
| | 332 | break; |
| | 333 | } |
| | 334 | |
| | 335 | return bytes_written; |
| | 336 | } |
| | 337 | |
| | 338 | static ssize_t batadv_store_gw_mode(struct kobject *kobj, |
| | 339 | struct attribute *attr, char *buff, |
| | 340 | size_t count) |
| | 341 | { |
| | 342 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
| | 343 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
| | 344 | char *curr_gw_mode_str; |
| | 345 | int gw_mode_tmp = -1; |
| | 346 | |
| | 347 | if (buff[count - 1] == '\n') |
| | 348 | buff[count - 1] = '\0'; |
| | 349 | |
| | 350 | if (strncmp(buff, BATADV_GW_MODE_OFF_NAME, |
| | 351 | strlen(BATADV_GW_MODE_OFF_NAME)) == 0) |
| | 352 | gw_mode_tmp = BATADV_GW_MODE_OFF; |
| | 353 | |
| | 354 | if (strncmp(buff, BATADV_GW_MODE_CLIENT_NAME, |
| | 355 | strlen(BATADV_GW_MODE_CLIENT_NAME)) == 0) |
| | 356 | gw_mode_tmp = BATADV_GW_MODE_CLIENT; |
| | 357 | |
| | 358 | if (strncmp(buff, BATADV_GW_MODE_SERVER_NAME, |
| | 359 | strlen(BATADV_GW_MODE_SERVER_NAME)) == 0) |
| | 360 | gw_mode_tmp = BATADV_GW_MODE_SERVER; |
| | 361 | |
| | 362 | if (gw_mode_tmp < 0) { |
| | 363 | batadv_info(net_dev, |
| | 364 | "Invalid parameter for 'gw mode' setting received: %s\n", |
| | 365 | buff); |
| | 366 | return -EINVAL; |
| | 367 | } |
| | 368 | |
| | 369 | if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp) |
| | 370 | return count; |
| | 371 | |
| | 372 | switch (atomic_read(&bat_priv->gw_mode)) { |
| | 373 | case BATADV_GW_MODE_CLIENT: |
| | 374 | curr_gw_mode_str = BATADV_GW_MODE_CLIENT_NAME; |
| | 375 | break; |
| | 376 | case BATADV_GW_MODE_SERVER: |
| | 377 | curr_gw_mode_str = BATADV_GW_MODE_SERVER_NAME; |
| | 378 | break; |
| | 379 | default: |
| | 380 | curr_gw_mode_str = BATADV_GW_MODE_OFF_NAME; |
| | 381 | break; |
| | 382 | } |
| | 383 | |
| | 384 | batadv_info(net_dev, "Changing gw mode from: %s to: %s\n", |
| | 385 | curr_gw_mode_str, buff); |
| | 386 | |
| | 387 | batadv_gw_deselect(bat_priv); |
| | 388 | atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp); |
| | 389 | return count; |
| | 390 | } |
| | 391 | |
| | 392 | static ssize_t batadv_show_gw_bwidth(struct kobject *kobj, |
| | 393 | struct attribute *attr, char *buff) |
| | 394 | { |
| | 395 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
| | 396 | int down, up; |
| | 397 | int gw_bandwidth = atomic_read(&bat_priv->gw_bandwidth); |
| | 398 | |
| | 399 | batadv_gw_bandwidth_to_kbit(gw_bandwidth, &down, &up); |
| | 400 | return sprintf(buff, "%i%s/%i%s\n", |
| | 401 | (down > 2048 ? down / 1024 : down), |
| | 402 | (down > 2048 ? "MBit" : "KBit"), |
| | 403 | (up > 2048 ? up / 1024 : up), |
| | 404 | (up > 2048 ? "MBit" : "KBit")); |
| | 405 | } |
| | 406 | |
| | 407 | static ssize_t batadv_store_gw_bwidth(struct kobject *kobj, |
| | 408 | struct attribute *attr, char *buff, |
| | 409 | size_t count) |
| | 410 | { |
| | 411 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
| | 412 | |
| | 413 | if (buff[count - 1] == '\n') |
| | 414 | buff[count - 1] = '\0'; |
| | 415 | |
| | 416 | return batadv_gw_bandwidth_set(net_dev, buff, count); |
| | 417 | } |
| | 418 | |
| | 419 | BATADV_ATTR_SIF_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL); |
| | 420 | BATADV_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL); |
| | 421 | #ifdef CONFIG_BATMAN_ADV_BLA |
| | 422 | BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, NULL); |
| | 423 | #endif |
| | 424 | #ifdef CONFIG_BATMAN_ADV_DAT |
| | 425 | BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, NULL); |
| | 426 | #endif |
| | 427 | BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu); |
| | 428 | BATADV_ATTR_SIF_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL); |
| | 429 | static BATADV_ATTR(vis_mode, S_IRUGO | S_IWUSR, batadv_show_vis_mode, |
| | 430 | batadv_store_vis_mode); |
| | 431 | static BATADV_ATTR(routing_algo, S_IRUGO, batadv_show_bat_algo, NULL); |
| | 432 | static BATADV_ATTR(gw_mode, S_IRUGO | S_IWUSR, batadv_show_gw_mode, |
| | 433 | batadv_store_gw_mode); |
| | 434 | BATADV_ATTR_SIF_UINT(orig_interval, S_IRUGO | S_IWUSR, 2 * BATADV_JITTER, |
| | 435 | INT_MAX, NULL); |
| | 436 | BATADV_ATTR_SIF_UINT(hop_penalty, S_IRUGO | S_IWUSR, 0, BATADV_TQ_MAX_VALUE, |
| | 437 | NULL); |
| | 438 | BATADV_ATTR_SIF_UINT(gw_sel_class, S_IRUGO | S_IWUSR, 1, BATADV_TQ_MAX_VALUE, |
| | 439 | batadv_post_gw_deselect); |
| | 440 | static BATADV_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, batadv_show_gw_bwidth, |
| | 441 | batadv_store_gw_bwidth); |
| | 442 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
| | 443 | BATADV_ATTR_SIF_UINT(log_level, S_IRUGO | S_IWUSR, 0, BATADV_DBG_ALL, NULL); |
| | 444 | #endif |
| | 445 | |
| | 446 | static struct batadv_attribute *batadv_mesh_attrs[] = { |
| | 447 | &batadv_attr_aggregated_ogms, |
| | 448 | &batadv_attr_bonding, |
| | 449 | #ifdef CONFIG_BATMAN_ADV_BLA |
| | 450 | &batadv_attr_bridge_loop_avoidance, |
| | 451 | #endif |
| | 452 | #ifdef CONFIG_BATMAN_ADV_DAT |
| | 453 | &batadv_attr_distributed_arp_table, |
| | 454 | #endif |
| | 455 | &batadv_attr_fragmentation, |
| | 456 | &batadv_attr_ap_isolation, |
| | 457 | &batadv_attr_vis_mode, |
| | 458 | &batadv_attr_routing_algo, |
| | 459 | &batadv_attr_gw_mode, |
| | 460 | &batadv_attr_orig_interval, |
| | 461 | &batadv_attr_hop_penalty, |
| | 462 | &batadv_attr_gw_sel_class, |
| | 463 | &batadv_attr_gw_bandwidth, |
| | 464 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
| | 465 | &batadv_attr_log_level, |
| | 466 | #endif |
| | 467 | NULL, |
| | 468 | }; |
| | 469 | |
| | 470 | int batadv_sysfs_add_meshif(struct net_device *dev) |
| | 471 | { |
| | 472 | struct kobject *batif_kobject = &dev->dev.kobj; |
| | 473 | struct batadv_priv *bat_priv = netdev_priv(dev); |
| | 474 | struct batadv_attribute **bat_attr; |
| | 475 | int err; |
| | 476 | |
| | 477 | bat_priv->mesh_obj = kobject_create_and_add(BATADV_SYSFS_IF_MESH_SUBDIR, |
| | 478 | batif_kobject); |
| | 479 | if (!bat_priv->mesh_obj) { |
| | 480 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
| | 481 | BATADV_SYSFS_IF_MESH_SUBDIR); |
| | 482 | goto out; |
| | 483 | } |
| | 484 | |
| | 485 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) { |
| | 486 | err = sysfs_create_file(bat_priv->mesh_obj, |
| | 487 | &((*bat_attr)->attr)); |
| | 488 | if (err) { |
| | 489 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
| | 490 | dev->name, BATADV_SYSFS_IF_MESH_SUBDIR, |
| | 491 | ((*bat_attr)->attr).name); |
| | 492 | goto rem_attr; |
| | 493 | } |
| | 494 | } |
| | 495 | |
| | 496 | return 0; |
| | 497 | |
| | 498 | rem_attr: |
| | 499 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
| | 500 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
| | 501 | |
| | 502 | kobject_put(bat_priv->mesh_obj); |
| | 503 | bat_priv->mesh_obj = NULL; |
| | 504 | out: |
| | 505 | return -ENOMEM; |
| | 506 | } |
| | 507 | |
| | 508 | void batadv_sysfs_del_meshif(struct net_device *dev) |
| | 509 | { |
| | 510 | struct batadv_priv *bat_priv = netdev_priv(dev); |
| | 511 | struct batadv_attribute **bat_attr; |
| | 512 | |
| | 513 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
| | 514 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
| | 515 | |
| | 516 | kobject_put(bat_priv->mesh_obj); |
| | 517 | bat_priv->mesh_obj = NULL; |
| | 518 | } |
| | 519 | |
| | 520 | static ssize_t batadv_show_mesh_iface(struct kobject *kobj, |
| | 521 | struct attribute *attr, char *buff) |
| | 522 | { |
| | 523 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
| | 524 | struct batadv_hard_iface *hard_iface; |
| | 525 | ssize_t length; |
| | 526 | const char *ifname; |
| | 527 | |
| | 528 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
| | 529 | if (!hard_iface) |
| | 530 | return 0; |
| | 531 | |
| | 532 | if (hard_iface->if_status == BATADV_IF_NOT_IN_USE) |
| | 533 | ifname = "none"; |
| | 534 | else |
| | 535 | ifname = hard_iface->soft_iface->name; |
| | 536 | |
| | 537 | length = sprintf(buff, "%s\n", ifname); |
| | 538 | |
| | 539 | batadv_hardif_free_ref(hard_iface); |
| | 540 | |
| | 541 | return length; |
| | 542 | } |
| | 543 | |
| | 544 | static ssize_t batadv_store_mesh_iface(struct kobject *kobj, |
| | 545 | struct attribute *attr, char *buff, |
| | 546 | size_t count) |
| | 547 | { |
| | 548 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
| | 549 | struct batadv_hard_iface *hard_iface; |
| | 550 | int status_tmp = -1; |
| | 551 | int ret = count; |
| | 552 | |
| | 553 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
| | 554 | if (!hard_iface) |
| | 555 | return count; |
| | 556 | |
| | 557 | if (buff[count - 1] == '\n') |
| | 558 | buff[count - 1] = '\0'; |
| | 559 | |
| | 560 | if (strlen(buff) >= IFNAMSIZ) { |
| | 561 | pr_err("Invalid parameter for 'mesh_iface' setting received: interface name too long '%s'\n", |
| | 562 | buff); |
| | 563 | batadv_hardif_free_ref(hard_iface); |
| | 564 | return -EINVAL; |
| | 565 | } |
| | 566 | |
| | 567 | if (strncmp(buff, "none", 4) == 0) |
| | 568 | status_tmp = BATADV_IF_NOT_IN_USE; |
| | 569 | else |
| | 570 | status_tmp = BATADV_IF_I_WANT_YOU; |
| | 571 | |
| | 572 | if (hard_iface->if_status == status_tmp) |
| | 573 | goto out; |
| | 574 | |
| | 575 | if ((hard_iface->soft_iface) && |
| | 576 | (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0)) |
| | 577 | goto out; |
| | 578 | |
| | 579 | if (!rtnl_trylock()) { |
| | 580 | ret = -ERESTARTSYS; |
| | 581 | goto out; |
| | 582 | } |
| | 583 | |
| | 584 | if (status_tmp == BATADV_IF_NOT_IN_USE) { |
| | 585 | batadv_hardif_disable_interface(hard_iface); |
| | 586 | goto unlock; |
| | 587 | } |
| | 588 | |
| | 589 | /* if the interface already is in use */ |
| | 590 | if (hard_iface->if_status != BATADV_IF_NOT_IN_USE) |
| | 591 | batadv_hardif_disable_interface(hard_iface); |
| | 592 | |
| | 593 | ret = batadv_hardif_enable_interface(hard_iface, buff); |
| | 594 | |
| | 595 | unlock: |
| | 596 | rtnl_unlock(); |
| | 597 | out: |
| | 598 | batadv_hardif_free_ref(hard_iface); |
| | 599 | return ret; |
| | 600 | } |
| | 601 | |
| | 602 | static ssize_t batadv_show_iface_status(struct kobject *kobj, |
| | 603 | struct attribute *attr, char *buff) |
| | 604 | { |
| | 605 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
| | 606 | struct batadv_hard_iface *hard_iface; |
| | 607 | ssize_t length; |
| | 608 | |
| | 609 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
| | 610 | if (!hard_iface) |
| | 611 | return 0; |
| | 612 | |
| | 613 | switch (hard_iface->if_status) { |
| | 614 | case BATADV_IF_TO_BE_REMOVED: |
| | 615 | length = sprintf(buff, "disabling\n"); |
| | 616 | break; |
| | 617 | case BATADV_IF_INACTIVE: |
| | 618 | length = sprintf(buff, "inactive\n"); |
| | 619 | break; |
| | 620 | case BATADV_IF_ACTIVE: |
| | 621 | length = sprintf(buff, "active\n"); |
| | 622 | break; |
| | 623 | case BATADV_IF_TO_BE_ACTIVATED: |
| | 624 | length = sprintf(buff, "enabling\n"); |
| | 625 | break; |
| | 626 | case BATADV_IF_NOT_IN_USE: |
| | 627 | default: |
| | 628 | length = sprintf(buff, "not in use\n"); |
| | 629 | break; |
| | 630 | } |
| | 631 | |
| | 632 | batadv_hardif_free_ref(hard_iface); |
| | 633 | |
| | 634 | return length; |
| | 635 | } |
| | 636 | |
| | 637 | static BATADV_ATTR(mesh_iface, S_IRUGO | S_IWUSR, batadv_show_mesh_iface, |
| | 638 | batadv_store_mesh_iface); |
| | 639 | static BATADV_ATTR(iface_status, S_IRUGO, batadv_show_iface_status, NULL); |
| | 640 | |
| | 641 | static struct batadv_attribute *batadv_batman_attrs[] = { |
| | 642 | &batadv_attr_mesh_iface, |
| | 643 | &batadv_attr_iface_status, |
| | 644 | NULL, |
| | 645 | }; |
| | 646 | |
| | 647 | int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev) |
| | 648 | { |
| | 649 | struct kobject *hardif_kobject = &dev->dev.kobj; |
| | 650 | struct batadv_attribute **bat_attr; |
| | 651 | int err; |
| | 652 | |
| | 653 | *hardif_obj = kobject_create_and_add(BATADV_SYSFS_IF_BAT_SUBDIR, |
| | 654 | hardif_kobject); |
| | 655 | |
| | 656 | if (!*hardif_obj) { |
| | 657 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
| | 658 | BATADV_SYSFS_IF_BAT_SUBDIR); |
| | 659 | goto out; |
| | 660 | } |
| | 661 | |
| | 662 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) { |
| | 663 | err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr)); |
| | 664 | if (err) { |
| | 665 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
| | 666 | dev->name, BATADV_SYSFS_IF_BAT_SUBDIR, |
| | 667 | ((*bat_attr)->attr).name); |
| | 668 | goto rem_attr; |
| | 669 | } |
| | 670 | } |
| | 671 | |
| | 672 | return 0; |
| | 673 | |
| | 674 | rem_attr: |
| | 675 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) |
| | 676 | sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr)); |
| | 677 | out: |
| | 678 | return -ENOMEM; |
| | 679 | } |
| | 680 | |
| | 681 | void batadv_sysfs_del_hardif(struct kobject **hardif_obj) |
| | 682 | { |
| | 683 | kobject_put(*hardif_obj); |
| | 684 | *hardif_obj = NULL; |
| | 685 | } |
| | 686 | |
| | 687 | int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type, |
| | 688 | enum batadv_uev_action action, const char *data) |
| | 689 | { |
| | 690 | int ret = -ENOMEM; |
| | 691 | struct batadv_hard_iface *primary_if; |
| | 692 | struct kobject *bat_kobj; |
| | 693 | char *uevent_env[4] = { NULL, NULL, NULL, NULL }; |
| | 694 | |
| | 695 | primary_if = batadv_primary_if_get_selected(bat_priv); |
| | 696 | if (!primary_if) |
| | 697 | goto out; |
| | 698 | |
| | 699 | bat_kobj = &primary_if->soft_iface->dev.kobj; |
| | 700 | |
| | 701 | uevent_env[0] = kmalloc(strlen(BATADV_UEV_TYPE_VAR) + |
| | 702 | strlen(batadv_uev_type_str[type]) + 1, |
| | 703 | GFP_ATOMIC); |
| | 704 | if (!uevent_env[0]) |
| | 705 | goto out; |
| | 706 | |
| | 707 | sprintf(uevent_env[0], "%s%s", BATADV_UEV_TYPE_VAR, |
| | 708 | batadv_uev_type_str[type]); |
| | 709 | |
| | 710 | uevent_env[1] = kmalloc(strlen(BATADV_UEV_ACTION_VAR) + |
| | 711 | strlen(batadv_uev_action_str[action]) + 1, |
| | 712 | GFP_ATOMIC); |
| | 713 | if (!uevent_env[1]) |
| | 714 | goto out; |
| | 715 | |
| | 716 | sprintf(uevent_env[1], "%s%s", BATADV_UEV_ACTION_VAR, |
| | 717 | batadv_uev_action_str[action]); |
| | 718 | |
| | 719 | /* If the event is DEL, ignore the data field */ |
| | 720 | if (action != BATADV_UEV_DEL) { |
| | 721 | uevent_env[2] = kmalloc(strlen(BATADV_UEV_DATA_VAR) + |
| | 722 | strlen(data) + 1, GFP_ATOMIC); |
| | 723 | if (!uevent_env[2]) |
| | 724 | goto out; |
| | 725 | |
| | 726 | sprintf(uevent_env[2], "%s%s", BATADV_UEV_DATA_VAR, data); |
| | 727 | } |
| | 728 | |
| | 729 | ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env); |
| | 730 | out: |
| | 731 | kfree(uevent_env[0]); |
| | 732 | kfree(uevent_env[1]); |
| | 733 | kfree(uevent_env[2]); |
| | 734 | |
| | 735 | if (primary_if) |
| | 736 | batadv_hardif_free_ref(primary_if); |
| | 737 | |
| | 738 | if (ret) |
| | 739 | batadv_dbg(BATADV_DBG_BATMAN, bat_priv, |
| | 740 | "Impossible to send uevent for (%s,%s,%s) event (err: %d)\n", |
| | 741 | batadv_uev_type_str[type], |
| | 742 | batadv_uev_action_str[action], |
| | 743 | (action == BATADV_UEV_DEL ? "NULL" : data), ret); |
| | 744 | return ret; |
| | 745 | } |
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame_incremental