Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 1 | /* SNMP-like status interface |
| 2 | * |
| 3 | * (C) 2010-2011 by Daniel Willmann <daniel@totalueberwachung.de> |
| 4 | * (C) 2010-2011 by On-Waves |
| 5 | * |
| 6 | * All Rights Reserved |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along |
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | #include <ctype.h> |
| 25 | #include <errno.h> |
| 26 | #include <stdio.h> |
| 27 | #include <stdlib.h> |
| 28 | #include <string.h> |
| 29 | #include <time.h> |
| 30 | #include <unistd.h> |
| 31 | |
Harald Welte | 1238cc6 | 2014-08-20 19:50:04 +0200 | [diff] [blame] | 32 | #include <osmocom/ctrl/control_cmd.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 33 | |
| 34 | #include <osmocom/core/msgb.h> |
| 35 | #include <osmocom/core/talloc.h> |
Max | 70c7d41 | 2017-02-24 13:59:14 +0100 | [diff] [blame] | 36 | #include <osmocom/core/utils.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 37 | #include <osmocom/vty/command.h> |
| 38 | #include <osmocom/vty/vector.h> |
| 39 | |
| 40 | extern vector ctrl_node_vec; |
| 41 | |
Max | 70c7d41 | 2017-02-24 13:59:14 +0100 | [diff] [blame] | 42 | const struct value_string ctrl_type_vals[] = { |
Neels Hofmeyr | 7c1ec8c | 2017-03-02 14:32:52 +0100 | [diff] [blame] | 43 | { CTRL_TYPE_UNKNOWN, "(unknown)" }, |
Max | 70c7d41 | 2017-02-24 13:59:14 +0100 | [diff] [blame] | 44 | { CTRL_TYPE_GET, "GET" }, |
| 45 | { CTRL_TYPE_SET, "SET" }, |
| 46 | { CTRL_TYPE_GET_REPLY, "GET_REPLY" }, |
| 47 | { CTRL_TYPE_SET_REPLY, "SET_REPLY" }, |
| 48 | { CTRL_TYPE_TRAP, "TRAP" }, |
| 49 | { CTRL_TYPE_ERROR, "ERROR" }, |
Neels Hofmeyr | 7c1ec8c | 2017-03-02 14:32:52 +0100 | [diff] [blame] | 50 | { 0, NULL } |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 51 | }; |
| 52 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 53 | /* Functions from libosmocom */ |
| 54 | extern vector cmd_make_descvec(const char *string, const char *descstr); |
| 55 | |
| 56 | /* Get the ctrl_cmd_element that matches this command */ |
| 57 | static struct ctrl_cmd_element *ctrl_cmd_get_element_match(vector vline, vector node) |
| 58 | { |
| 59 | int index, j; |
| 60 | const char *desc; |
| 61 | struct ctrl_cmd_element *cmd_el; |
| 62 | struct ctrl_cmd_struct *cmd_desc; |
| 63 | char *str; |
| 64 | |
| 65 | for (index = 0; index < vector_active(node); index++) { |
| 66 | if ((cmd_el = vector_slot(node, index))) { |
| 67 | cmd_desc = &cmd_el->strcmd; |
| 68 | if (cmd_desc->nr_commands > vector_active(vline)) |
| 69 | continue; |
Holger Hans Peter Freyther | 5fb265e | 2015-04-05 14:36:31 +0200 | [diff] [blame] | 70 | for (j =0; j < vector_active(vline) && j < cmd_desc->nr_commands; j++) { |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 71 | str = vector_slot(vline, j); |
| 72 | desc = cmd_desc->command[j]; |
| 73 | if (desc[0] == '*') |
| 74 | return cmd_el; /* Partial match */ |
| 75 | if (strcmp(desc, str) != 0) |
| 76 | break; |
| 77 | } |
| 78 | /* We went through all the elements and all matched */ |
| 79 | if (j == cmd_desc->nr_commands) |
| 80 | return cmd_el; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | return NULL; |
| 85 | } |
| 86 | |
| 87 | int ctrl_cmd_exec(vector vline, struct ctrl_cmd *command, vector node, void *data) |
| 88 | { |
| 89 | int ret = CTRL_CMD_ERROR; |
| 90 | struct ctrl_cmd_element *cmd_el; |
| 91 | |
| 92 | if ((command->type != CTRL_TYPE_GET) && (command->type != CTRL_TYPE_SET)) { |
| 93 | command->reply = "Trying to execute something not GET or SET"; |
| 94 | goto out; |
| 95 | } |
| 96 | if ((command->type == CTRL_TYPE_SET) && (!command->value)) { |
| 97 | command->reply = "SET without a value"; |
| 98 | goto out; |
| 99 | } |
| 100 | |
| 101 | if (!vline) |
| 102 | goto out; |
| 103 | |
| 104 | cmd_el = ctrl_cmd_get_element_match(vline, node); |
| 105 | |
| 106 | if (!cmd_el) { |
| 107 | command->reply = "Command not found"; |
| 108 | goto out; |
| 109 | } |
| 110 | |
| 111 | if (command->type == CTRL_TYPE_SET) { |
| 112 | if (!cmd_el->set) { |
| 113 | command->reply = "SET not implemented"; |
| 114 | goto out; |
| 115 | } |
| 116 | if (cmd_el->verify) { |
| 117 | if ((ret = cmd_el->verify(command, command->value, data))) { |
| 118 | ret = CTRL_CMD_ERROR; |
Daniel Willmann | 9225ab1 | 2011-07-28 21:38:51 +0200 | [diff] [blame] | 119 | /* If verify() set an appropriate error message, don't change it. */ |
| 120 | if (!command->reply) |
| 121 | command->reply = "Value failed verification."; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 122 | goto out; |
| 123 | } |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 124 | } |
| 125 | ret = cmd_el->set(command, data); |
| 126 | goto out; |
| 127 | } else if (command->type == CTRL_TYPE_GET) { |
| 128 | if (!cmd_el->get) { |
| 129 | command->reply = "GET not implemented"; |
| 130 | goto out; |
| 131 | } |
| 132 | ret = cmd_el->get(command, data); |
| 133 | goto out; |
| 134 | } |
| 135 | out: |
| 136 | if (ret == CTRL_CMD_REPLY) { |
| 137 | if (command->type == CTRL_TYPE_SET) { |
| 138 | command->type = CTRL_TYPE_SET_REPLY; |
| 139 | } else if (command->type == CTRL_TYPE_GET) { |
| 140 | command->type = CTRL_TYPE_GET_REPLY; |
| 141 | } |
| 142 | } else if (ret == CTRL_CMD_ERROR) { |
| 143 | command->type = CTRL_TYPE_ERROR; |
| 144 | } |
| 145 | return ret; |
| 146 | } |
| 147 | |
| 148 | static void add_word(struct ctrl_cmd_struct *cmd, |
| 149 | const char *start, const char *end) |
| 150 | { |
| 151 | if (!cmd->command) { |
| 152 | cmd->command = talloc_zero_array(tall_vty_vec_ctx, |
| 153 | char*, 1); |
| 154 | cmd->nr_commands = 0; |
| 155 | } else { |
| 156 | cmd->command = talloc_realloc(tall_vty_vec_ctx, |
| 157 | cmd->command, char*, |
| 158 | cmd->nr_commands + 1); |
| 159 | } |
| 160 | |
| 161 | cmd->command[cmd->nr_commands++] = talloc_strndup(cmd->command, |
| 162 | start, end - start); |
| 163 | } |
| 164 | |
| 165 | static void create_cmd_struct(struct ctrl_cmd_struct *cmd, const char *name) |
| 166 | { |
| 167 | const char *cur, *word; |
| 168 | |
| 169 | for (cur = name, word = NULL; cur[0] != '\0'; ++cur) { |
| 170 | /* warn about optionals */ |
| 171 | if (cur[0] == '(' || cur[0] == ')' || cur[0] == '|') { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 172 | LOGP(DLCTRL, LOGL_ERROR, |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 173 | "Optionals are not supported in '%s'\n", name); |
| 174 | goto failure; |
| 175 | } |
| 176 | |
| 177 | if (isspace(cur[0])) { |
| 178 | if (word) { |
| 179 | add_word(cmd, word, cur); |
| 180 | word = NULL; |
| 181 | } |
| 182 | continue; |
| 183 | } |
| 184 | |
| 185 | if (!word) |
| 186 | word = cur; |
| 187 | } |
| 188 | |
| 189 | if (word) |
| 190 | add_word(cmd, word, cur); |
| 191 | |
| 192 | return; |
| 193 | failure: |
| 194 | cmd->nr_commands = 0; |
| 195 | talloc_free(cmd->command); |
| 196 | } |
| 197 | |
| 198 | int ctrl_cmd_install(enum ctrl_node_type node, struct ctrl_cmd_element *cmd) |
| 199 | { |
| 200 | vector cmds_vec; |
| 201 | |
| 202 | cmds_vec = vector_lookup_ensure(ctrl_node_vec, node); |
| 203 | |
| 204 | if (!cmds_vec) { |
| 205 | cmds_vec = vector_init(5); |
| 206 | if (!cmds_vec) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 207 | LOGP(DLCTRL, LOGL_ERROR, "vector_init failed.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 208 | return -ENOMEM; |
| 209 | } |
| 210 | vector_set_index(ctrl_node_vec, node, cmds_vec); |
| 211 | } |
| 212 | |
| 213 | vector_set(cmds_vec, cmd); |
| 214 | |
| 215 | create_cmd_struct(&cmd->strcmd, cmd->name); |
| 216 | return 0; |
| 217 | } |
| 218 | |
Holger Hans Peter Freyther | a6b3401 | 2011-08-22 23:44:32 +0200 | [diff] [blame] | 219 | struct ctrl_cmd *ctrl_cmd_create(void *ctx, enum ctrl_type type) |
| 220 | { |
| 221 | struct ctrl_cmd *cmd; |
| 222 | |
| 223 | cmd = talloc_zero(ctx, struct ctrl_cmd); |
| 224 | if (!cmd) |
| 225 | return NULL; |
| 226 | |
| 227 | cmd->type = type; |
| 228 | return cmd; |
| 229 | } |
| 230 | |
Daniel Willmann | 8b7a962 | 2011-03-17 15:37:54 +0100 | [diff] [blame] | 231 | struct ctrl_cmd *ctrl_cmd_cpy(void *ctx, struct ctrl_cmd *cmd) |
| 232 | { |
| 233 | struct ctrl_cmd *cmd2; |
| 234 | |
| 235 | cmd2 = talloc_zero(ctx, struct ctrl_cmd); |
| 236 | if (!cmd2) |
| 237 | return NULL; |
| 238 | |
| 239 | cmd2->type = cmd->type; |
| 240 | if (cmd->id) { |
| 241 | cmd2->id = talloc_strdup(cmd2, cmd->id); |
| 242 | if (!cmd2->id) |
| 243 | goto err; |
| 244 | } |
| 245 | if (cmd->variable) { |
| 246 | cmd2->variable = talloc_strdup(cmd2, cmd->variable); |
| 247 | if (!cmd2->variable) |
| 248 | goto err; |
| 249 | } |
| 250 | if (cmd->value) { |
| 251 | cmd2->value = talloc_strdup(cmd2, cmd->value); |
| 252 | if (!cmd2->value) |
| 253 | goto err; |
| 254 | } |
| 255 | if (cmd->reply) { |
| 256 | cmd2->reply = talloc_strdup(cmd2, cmd->reply); |
| 257 | if (!cmd2->reply) |
| 258 | goto err; |
| 259 | } |
| 260 | |
| 261 | return cmd2; |
| 262 | err: |
| 263 | talloc_free(cmd2); |
| 264 | return NULL; |
| 265 | } |
| 266 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 267 | struct ctrl_cmd *ctrl_cmd_parse(void *ctx, struct msgb *msg) |
| 268 | { |
| 269 | char *str, *tmp, *saveptr = NULL; |
| 270 | char *var, *val; |
| 271 | struct ctrl_cmd *cmd; |
| 272 | |
| 273 | cmd = talloc_zero(ctx, struct ctrl_cmd); |
| 274 | if (!cmd) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 275 | LOGP(DLCTRL, LOGL_ERROR, "Failed to allocate.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 276 | return NULL; |
| 277 | } |
| 278 | |
| 279 | /* Make sure input is NULL terminated */ |
| 280 | msgb_put_u8(msg, 0); |
| 281 | str = (char *) msg->l2h; |
| 282 | |
Harald Welte | edf6fe7 | 2016-11-26 10:06:07 +0100 | [diff] [blame] | 283 | OSMO_ASSERT(str); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 284 | tmp = strtok_r(str, " ", &saveptr); |
| 285 | if (!tmp) { |
| 286 | cmd->type = CTRL_TYPE_ERROR; |
| 287 | cmd->id = "err"; |
| 288 | cmd->reply = "Request malformed"; |
| 289 | goto err; |
| 290 | } |
| 291 | |
Max | 70c7d41 | 2017-02-24 13:59:14 +0100 | [diff] [blame] | 292 | cmd->type = get_string_value(ctrl_type_vals, tmp); |
Neels Hofmeyr | cb5c4ed | 2017-03-02 14:32:52 +0100 | [diff] [blame] | 293 | if (cmd->type < 0 || cmd->type == CTRL_TYPE_UNKNOWN) { |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 294 | cmd->type = CTRL_TYPE_ERROR; |
| 295 | cmd->id = "err"; |
| 296 | cmd->reply = "Request type unknown"; |
| 297 | goto err; |
| 298 | } |
| 299 | |
| 300 | tmp = strtok_r(NULL, " ", &saveptr); |
| 301 | |
| 302 | if (!tmp) { |
| 303 | cmd->type = CTRL_TYPE_ERROR; |
| 304 | cmd->id = "err"; |
| 305 | cmd->reply = "Missing ID"; |
| 306 | goto err; |
| 307 | } |
| 308 | cmd->id = talloc_strdup(cmd, tmp); |
| 309 | if (!cmd->id) |
| 310 | goto oom; |
| 311 | |
| 312 | switch (cmd->type) { |
| 313 | case CTRL_TYPE_GET: |
| 314 | var = strtok_r(NULL, " ", &saveptr); |
| 315 | if (!var) { |
| 316 | cmd->type = CTRL_TYPE_ERROR; |
| 317 | cmd->reply = "GET incomplete"; |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 318 | LOGP(DLCTRL, LOGL_NOTICE, "GET Command incomplete\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 319 | goto err; |
| 320 | } |
| 321 | cmd->variable = talloc_strdup(cmd, var); |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 322 | LOGP(DLCTRL, LOGL_DEBUG, "Command: GET %s\n", cmd->variable); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 323 | break; |
| 324 | case CTRL_TYPE_SET: |
| 325 | var = strtok_r(NULL, " ", &saveptr); |
Holger Hans Peter Freyther | 5ad742d | 2014-08-08 19:41:28 +0200 | [diff] [blame] | 326 | val = strtok_r(NULL, "\n", &saveptr); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 327 | if (!var || !val) { |
| 328 | cmd->type = CTRL_TYPE_ERROR; |
| 329 | cmd->reply = "SET incomplete"; |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 330 | LOGP(DLCTRL, LOGL_NOTICE, "SET Command incomplete\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 331 | goto err; |
| 332 | } |
| 333 | cmd->variable = talloc_strdup(cmd, var); |
| 334 | cmd->value = talloc_strdup(cmd, val); |
| 335 | if (!cmd->variable || !cmd->value) |
| 336 | goto oom; |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 337 | LOGP(DLCTRL, LOGL_DEBUG, "Command: SET %s = %s\n", cmd->variable, cmd->value); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 338 | break; |
| 339 | case CTRL_TYPE_GET_REPLY: |
| 340 | case CTRL_TYPE_SET_REPLY: |
| 341 | case CTRL_TYPE_TRAP: |
| 342 | var = strtok_r(NULL, " ", &saveptr); |
| 343 | val = strtok_r(NULL, " ", &saveptr); |
| 344 | if (!var || !val) { |
| 345 | cmd->type = CTRL_TYPE_ERROR; |
| 346 | cmd->reply = "Trap/Reply incomplete"; |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 347 | LOGP(DLCTRL, LOGL_NOTICE, "Trap/Reply incomplete\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 348 | goto err; |
| 349 | } |
| 350 | cmd->variable = talloc_strdup(cmd, var); |
| 351 | cmd->reply = talloc_strdup(cmd, val); |
| 352 | if (!cmd->variable || !cmd->reply) |
| 353 | goto oom; |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 354 | LOGP(DLCTRL, LOGL_DEBUG, "Command: TRAP/REPLY %s: %s\n", cmd->variable, cmd->reply); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 355 | break; |
| 356 | case CTRL_TYPE_ERROR: |
| 357 | var = strtok_r(NULL, "\0", &saveptr); |
| 358 | if (!var) { |
| 359 | cmd->reply = ""; |
| 360 | goto err; |
| 361 | } |
| 362 | cmd->reply = talloc_strdup(cmd, var); |
| 363 | if (!cmd->reply) |
| 364 | goto oom; |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 365 | LOGP(DLCTRL, LOGL_DEBUG, "Command: ERROR %s\n", cmd->reply); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 366 | break; |
| 367 | case CTRL_TYPE_UNKNOWN: |
| 368 | default: |
| 369 | cmd->type = CTRL_TYPE_ERROR; |
| 370 | cmd->reply = "Unknown type"; |
| 371 | goto err; |
| 372 | } |
| 373 | |
| 374 | return cmd; |
| 375 | oom: |
| 376 | cmd->type = CTRL_TYPE_ERROR; |
| 377 | cmd->id = "err"; |
| 378 | cmd->reply = "OOM"; |
| 379 | err: |
| 380 | talloc_free(cmd); |
| 381 | return NULL; |
| 382 | } |
| 383 | |
| 384 | struct msgb *ctrl_cmd_make(struct ctrl_cmd *cmd) |
| 385 | { |
| 386 | struct msgb *msg; |
Max | 70c7d41 | 2017-02-24 13:59:14 +0100 | [diff] [blame] | 387 | const char *type; |
| 388 | char *tmp; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 389 | |
| 390 | if (!cmd->id) |
| 391 | return NULL; |
| 392 | |
| 393 | msg = msgb_alloc_headroom(4096, 128, "ctrl command make"); |
| 394 | if (!msg) |
| 395 | return NULL; |
| 396 | |
Max | 70c7d41 | 2017-02-24 13:59:14 +0100 | [diff] [blame] | 397 | type = get_value_string(ctrl_type_vals, cmd->type); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 398 | |
| 399 | switch (cmd->type) { |
| 400 | case CTRL_TYPE_GET: |
| 401 | if (!cmd->variable) |
| 402 | goto err; |
| 403 | |
| 404 | tmp = talloc_asprintf(cmd, "%s %s %s", type, cmd->id, cmd->variable); |
| 405 | if (!tmp) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 406 | LOGP(DLCTRL, LOGL_ERROR, "Failed to allocate cmd.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 407 | goto err; |
| 408 | } |
| 409 | |
| 410 | msg->l2h = msgb_put(msg, strlen(tmp)); |
| 411 | memcpy(msg->l2h, tmp, strlen(tmp)); |
| 412 | talloc_free(tmp); |
| 413 | break; |
| 414 | case CTRL_TYPE_SET: |
| 415 | if (!cmd->variable || !cmd->value) |
| 416 | goto err; |
| 417 | |
| 418 | tmp = talloc_asprintf(cmd, "%s %s %s %s", type, cmd->id, cmd->variable, |
| 419 | cmd->value); |
| 420 | if (!tmp) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 421 | LOGP(DLCTRL, LOGL_ERROR, "Failed to allocate cmd.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 422 | goto err; |
| 423 | } |
| 424 | |
| 425 | msg->l2h = msgb_put(msg, strlen(tmp)); |
| 426 | memcpy(msg->l2h, tmp, strlen(tmp)); |
| 427 | talloc_free(tmp); |
| 428 | break; |
| 429 | case CTRL_TYPE_GET_REPLY: |
| 430 | case CTRL_TYPE_SET_REPLY: |
| 431 | case CTRL_TYPE_TRAP: |
| 432 | if (!cmd->variable || !cmd->reply) |
| 433 | goto err; |
| 434 | |
| 435 | tmp = talloc_asprintf(cmd, "%s %s %s %s", type, cmd->id, cmd->variable, |
| 436 | cmd->reply); |
| 437 | if (!tmp) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 438 | LOGP(DLCTRL, LOGL_ERROR, "Failed to allocate cmd.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 439 | goto err; |
| 440 | } |
| 441 | |
| 442 | msg->l2h = msgb_put(msg, strlen(tmp)); |
| 443 | memcpy(msg->l2h, tmp, strlen(tmp)); |
| 444 | talloc_free(tmp); |
| 445 | break; |
| 446 | case CTRL_TYPE_ERROR: |
| 447 | if (!cmd->reply) |
| 448 | goto err; |
| 449 | |
| 450 | tmp = talloc_asprintf(cmd, "%s %s %s", type, cmd->id, |
| 451 | cmd->reply); |
| 452 | if (!tmp) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 453 | LOGP(DLCTRL, LOGL_ERROR, "Failed to allocate cmd.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 454 | goto err; |
| 455 | } |
| 456 | |
| 457 | msg->l2h = msgb_put(msg, strlen(tmp)); |
| 458 | memcpy(msg->l2h, tmp, strlen(tmp)); |
| 459 | talloc_free(tmp); |
| 460 | break; |
| 461 | default: |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 462 | LOGP(DLCTRL, LOGL_NOTICE, "Unknown command type %i\n", cmd->type); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 463 | goto err; |
| 464 | break; |
| 465 | } |
| 466 | |
| 467 | return msg; |
| 468 | |
| 469 | err: |
| 470 | msgb_free(msg); |
| 471 | return NULL; |
| 472 | } |
Harald Welte | 39c9e7b | 2014-08-22 00:28:51 +0200 | [diff] [blame] | 473 | |
| 474 | struct ctrl_cmd_def * |
| 475 | ctrl_cmd_def_make(const void *ctx, struct ctrl_cmd *cmd, void *data, unsigned int secs) |
| 476 | { |
| 477 | struct ctrl_cmd_def *cd; |
| 478 | |
| 479 | if (!cmd->ccon) |
| 480 | return NULL; |
| 481 | |
| 482 | cd = talloc_zero(ctx, struct ctrl_cmd_def); |
| 483 | |
| 484 | cd->cmd = cmd; |
| 485 | cd->data = data; |
| 486 | |
| 487 | /* add to per-connection list of deferred commands */ |
| 488 | llist_add(&cd->list, &cmd->ccon->def_cmds); |
| 489 | |
| 490 | return cd; |
| 491 | } |
| 492 | |
| 493 | int ctrl_cmd_def_is_zombie(struct ctrl_cmd_def *cd) |
| 494 | { |
| 495 | /* luckily we're still alive */ |
| 496 | if (cd->cmd) |
| 497 | return 0; |
| 498 | |
| 499 | /* if we are a zombie, make sure we really die */ |
| 500 | llist_del(&cd->list); |
| 501 | talloc_free(cd); |
| 502 | |
| 503 | return 1; |
| 504 | } |
| 505 | |
| 506 | int ctrl_cmd_def_send(struct ctrl_cmd_def *cd) |
| 507 | { |
| 508 | struct ctrl_cmd *cmd = cd->cmd; |
| 509 | |
| 510 | int rc; |
| 511 | |
| 512 | /* Deferred commands can only be responses to GET/SET or ERROR, but |
| 513 | * never TRAP or anything else */ |
| 514 | switch (cmd->type) { |
| 515 | case CTRL_TYPE_GET: |
| 516 | cmd->type = CTRL_TYPE_GET_REPLY; |
| 517 | break; |
| 518 | case CTRL_TYPE_SET: |
| 519 | cmd->type = CTRL_TYPE_SET_REPLY; |
| 520 | break; |
| 521 | default: |
| 522 | cmd->type = CTRL_TYPE_ERROR; |
| 523 | } |
| 524 | |
| 525 | rc = ctrl_cmd_send(&cmd->ccon->write_queue, cmd); |
| 526 | |
| 527 | talloc_free(cmd); |
| 528 | llist_del(&cd->list); |
| 529 | talloc_free(cd); |
| 530 | |
| 531 | return rc; |
| 532 | } |