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 <errno.h> |
Daniel Willmann | 0834a34 | 2011-07-19 12:12:10 +0200 | [diff] [blame] | 25 | #include <inttypes.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 26 | #include <stdio.h> |
| 27 | #include <stdlib.h> |
| 28 | #include <string.h> |
| 29 | #include <time.h> |
| 30 | #include <unistd.h> |
| 31 | |
| 32 | #include <arpa/inet.h> |
| 33 | |
Holger Hans Peter Freyther | 5e21131 | 2014-08-21 16:31:52 +0200 | [diff] [blame] | 34 | #include <netinet/in.h> |
Harald Welte | e15ac06 | 2014-12-04 14:15:36 +0100 | [diff] [blame] | 35 | #ifdef HAVE_NETINET_TCP_H |
| 36 | #include <netinet/tcp.h> |
| 37 | #endif |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 38 | |
Harald Welte | e15ac06 | 2014-12-04 14:15:36 +0100 | [diff] [blame] | 39 | #include <fcntl.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 40 | #include <sys/ioctl.h> |
| 41 | #include <sys/socket.h> |
| 42 | #include <sys/types.h> |
| 43 | |
Harald Welte | 1238cc6 | 2014-08-20 19:50:04 +0200 | [diff] [blame] | 44 | #include <osmocom/ctrl/control_cmd.h> |
| 45 | #include <osmocom/ctrl/control_if.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 46 | |
| 47 | #include <osmocom/core/msgb.h> |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 48 | #include <osmocom/core/rate_ctr.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 49 | #include <osmocom/core/select.h> |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 50 | #include <osmocom/core/statistics.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 51 | #include <osmocom/core/talloc.h> |
Harald Welte | 1238cc6 | 2014-08-20 19:50:04 +0200 | [diff] [blame] | 52 | #include <osmocom/core/socket.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 53 | |
Harald Welte | 1238cc6 | 2014-08-20 19:50:04 +0200 | [diff] [blame] | 54 | #include <osmocom/gsm/protocol/ipaccess.h> |
Harald Welte | acbb4c9 | 2014-08-20 22:51:25 +0200 | [diff] [blame] | 55 | #include <osmocom/gsm/ipa.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 56 | |
| 57 | #include <osmocom/vty/command.h> |
| 58 | #include <osmocom/vty/vector.h> |
| 59 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 60 | vector ctrl_node_vec; |
| 61 | |
Harald Welte | 528134b | 2014-08-21 15:13:08 +0200 | [diff] [blame] | 62 | int ctrl_parse_get_num(vector vline, int i, long *num) |
| 63 | { |
| 64 | char *token, *tmp; |
| 65 | |
| 66 | if (i >= vector_active(vline)) |
| 67 | return 0; |
| 68 | token = vector_slot(vline, i); |
| 69 | |
| 70 | errno = 0; |
| 71 | if (token[0] == '\0') |
| 72 | return 0; |
| 73 | |
| 74 | *num = strtol(token, &tmp, 10); |
| 75 | if (tmp[0] != '\0' || errno != 0) |
| 76 | return 0; |
| 77 | |
| 78 | return 1; |
| 79 | } |
| 80 | |
Daniel Willmann | 35a1b3b | 2011-05-06 16:38:11 +0200 | [diff] [blame] | 81 | /* Send command to all */ |
| 82 | int ctrl_cmd_send_to_all(struct ctrl_handle *ctrl, struct ctrl_cmd *cmd) |
| 83 | { |
| 84 | struct ctrl_connection *ccon; |
| 85 | int ret = 0; |
| 86 | |
| 87 | llist_for_each_entry(ccon, &ctrl->ccon_list, list_entry) { |
| 88 | if (ccon == cmd->ccon) |
| 89 | continue; |
| 90 | if (ctrl_cmd_send(&ccon->write_queue, cmd)) |
| 91 | ret++; |
| 92 | } |
| 93 | return ret; |
| 94 | } |
| 95 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 96 | int ctrl_cmd_send(struct osmo_wqueue *queue, struct ctrl_cmd *cmd) |
| 97 | { |
| 98 | int ret; |
| 99 | struct msgb *msg; |
| 100 | |
| 101 | msg = ctrl_cmd_make(cmd); |
| 102 | if (!msg) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 103 | LOGP(DLCTRL, LOGL_ERROR, "Could not generate msg\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 104 | return -1; |
| 105 | } |
| 106 | |
Harald Welte | acbb4c9 | 2014-08-20 22:51:25 +0200 | [diff] [blame] | 107 | ipa_prepend_header_ext(msg, IPAC_PROTO_EXT_CTRL); |
| 108 | ipa_prepend_header(msg, IPAC_PROTO_OSMO); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 109 | |
| 110 | ret = osmo_wqueue_enqueue(queue, msg); |
| 111 | if (ret != 0) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 112 | LOGP(DLCTRL, LOGL_ERROR, "Failed to enqueue the command.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 113 | msgb_free(msg); |
| 114 | } |
| 115 | return ret; |
| 116 | } |
| 117 | |
Daniel Willmann | f2e75d4 | 2011-07-22 18:08:31 +0200 | [diff] [blame] | 118 | struct ctrl_cmd *ctrl_cmd_trap(struct ctrl_cmd *cmd) |
| 119 | { |
| 120 | struct ctrl_cmd *trap; |
| 121 | |
Harald Welte | c9df37d | 2014-08-20 19:55:17 +0200 | [diff] [blame] | 122 | trap = ctrl_cmd_cpy(cmd, cmd); |
Daniel Willmann | f2e75d4 | 2011-07-22 18:08:31 +0200 | [diff] [blame] | 123 | if (!trap) |
| 124 | return NULL; |
| 125 | |
| 126 | trap->ccon = cmd->ccon; |
| 127 | trap->type = CTRL_TYPE_TRAP; |
| 128 | return trap; |
| 129 | } |
| 130 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 131 | static void control_close_conn(struct ctrl_connection *ccon) |
| 132 | { |
Harald Welte | 39c9e7b | 2014-08-22 00:28:51 +0200 | [diff] [blame] | 133 | struct ctrl_cmd_def *cd, *cd2; |
| 134 | |
Harald Welte | 6d96dd7 | 2013-03-16 10:13:04 +0100 | [diff] [blame] | 135 | osmo_wqueue_clear(&ccon->write_queue); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 136 | close(ccon->write_queue.bfd.fd); |
| 137 | osmo_fd_unregister(&ccon->write_queue.bfd); |
Daniel Willmann | 0e0cf37 | 2011-05-06 16:37:25 +0200 | [diff] [blame] | 138 | llist_del(&ccon->list_entry); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 139 | if (ccon->closed_cb) |
| 140 | ccon->closed_cb(ccon); |
Jacob Erlbeck | 141de62 | 2014-03-31 13:42:11 +0200 | [diff] [blame] | 141 | msgb_free(ccon->pending_msg); |
Harald Welte | 39c9e7b | 2014-08-22 00:28:51 +0200 | [diff] [blame] | 142 | |
| 143 | /* clean up deferred commands */ |
| 144 | llist_for_each_entry_safe(cd, cd2, &ccon->def_cmds, list) { |
| 145 | /* delete from list of def_cmds for this ccon */ |
| 146 | llist_del(&cd->list); |
| 147 | /* not strictly needed as this is a slave to the ccon which we |
| 148 | * are about to free anyway */ |
| 149 | talloc_free(cd->cmd); |
| 150 | /* set the CMD to null, this is the indication to the user that |
| 151 | * the connection for this command has gone */ |
| 152 | cd->cmd = NULL; |
| 153 | } |
| 154 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 155 | talloc_free(ccon); |
| 156 | } |
| 157 | |
Harald Welte | 528134b | 2014-08-21 15:13:08 +0200 | [diff] [blame] | 158 | int ctrl_cmd_handle(struct ctrl_handle *ctrl, struct ctrl_cmd *cmd, |
| 159 | void *data) |
| 160 | { |
| 161 | char *request; |
| 162 | int i, j, ret, node; |
| 163 | |
| 164 | vector vline, cmdvec, cmds_vec; |
| 165 | |
| 166 | ret = CTRL_CMD_ERROR; |
| 167 | cmd->reply = NULL; |
| 168 | node = CTRL_NODE_ROOT; |
| 169 | cmd->node = data; |
| 170 | |
| 171 | request = talloc_strdup(cmd, cmd->variable); |
| 172 | if (!request) |
| 173 | goto err; |
| 174 | |
| 175 | for (i=0;i<strlen(request);i++) { |
| 176 | if (request[i] == '.') |
| 177 | request[i] = ' '; |
| 178 | } |
| 179 | |
| 180 | vline = cmd_make_strvec(request); |
| 181 | talloc_free(request); |
| 182 | if (!vline) { |
| 183 | cmd->reply = "cmd_make_strvec failed."; |
| 184 | goto err; |
| 185 | } |
| 186 | |
| 187 | for (i=0;i<vector_active(vline);i++) { |
| 188 | int rc; |
| 189 | |
| 190 | if (ctrl->lookup) |
| 191 | rc = ctrl->lookup(data, vline, &node, &cmd->node, &i); |
| 192 | else |
| 193 | rc = 0; |
| 194 | |
| 195 | if (rc == 1) { |
| 196 | /* do nothing */ |
| 197 | } else if (rc == -ENODEV) |
| 198 | goto err_missing; |
| 199 | else if (rc == -ERANGE) |
| 200 | goto err_index; |
| 201 | else { |
| 202 | /* If we're here the rest must be the command */ |
| 203 | cmdvec = vector_init(vector_active(vline)-i); |
| 204 | for (j=i; j<vector_active(vline); j++) { |
| 205 | vector_set(cmdvec, vector_slot(vline, j)); |
| 206 | } |
| 207 | |
| 208 | /* Get the command vector of the right node */ |
| 209 | cmds_vec = vector_lookup(ctrl_node_vec, node); |
| 210 | |
| 211 | if (!cmds_vec) { |
| 212 | cmd->reply = "Command not found."; |
| 213 | vector_free(cmdvec); |
| 214 | break; |
| 215 | } |
| 216 | |
| 217 | ret = ctrl_cmd_exec(cmdvec, cmd, cmds_vec, data); |
| 218 | |
| 219 | vector_free(cmdvec); |
| 220 | break; |
| 221 | } |
| 222 | |
| 223 | if (i+1 == vector_active(vline)) |
| 224 | cmd->reply = "Command not present."; |
| 225 | } |
| 226 | |
| 227 | cmd_free_strvec(vline); |
| 228 | |
| 229 | err: |
| 230 | if (!cmd->reply) { |
| 231 | if (ret == CTRL_CMD_ERROR) { |
| 232 | cmd->reply = "An error has occured."; |
| 233 | LOGP(DLCTRL, LOGL_NOTICE, |
| 234 | "%s: cmd->reply has not been set (ERROR).\n", |
| 235 | cmd->variable); |
| 236 | } else if (ret == CTRL_CMD_REPLY) { |
| 237 | LOGP(DLCTRL, LOGL_NOTICE, |
| 238 | "%s: cmd->reply has not been set (type = %d).\n", |
| 239 | cmd->variable, cmd->type); |
| 240 | cmd->reply = ""; |
| 241 | } else { |
| 242 | cmd->reply = "Command has been handled."; |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | if (ret == CTRL_CMD_ERROR) |
| 247 | cmd->type = CTRL_TYPE_ERROR; |
| 248 | return ret; |
| 249 | |
| 250 | err_missing: |
| 251 | cmd_free_strvec(vline); |
| 252 | cmd->type = CTRL_TYPE_ERROR; |
| 253 | cmd->reply = "Error while resolving object"; |
| 254 | return ret; |
| 255 | err_index: |
| 256 | cmd_free_strvec(vline); |
| 257 | cmd->type = CTRL_TYPE_ERROR; |
| 258 | cmd->reply = "Error while parsing the index."; |
| 259 | return ret; |
| 260 | } |
| 261 | |
| 262 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 263 | static int handle_control_read(struct osmo_fd * bfd) |
| 264 | { |
Pablo Neira Ayuso | 10dfc26 | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 265 | int ret = -1; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 266 | struct osmo_wqueue *queue; |
| 267 | struct ctrl_connection *ccon; |
| 268 | struct ipaccess_head *iph; |
| 269 | struct ipaccess_head_ext *iph_ext; |
Alexander Huemer | 1d3634e | 2011-10-12 00:29:30 +0200 | [diff] [blame] | 270 | struct msgb *msg = NULL; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 271 | struct ctrl_cmd *cmd; |
| 272 | struct ctrl_handle *ctrl = bfd->data; |
| 273 | |
| 274 | queue = container_of(bfd, struct osmo_wqueue, bfd); |
| 275 | ccon = container_of(queue, struct ctrl_connection, write_queue); |
| 276 | |
Jacob Erlbeck | 141de62 | 2014-03-31 13:42:11 +0200 | [diff] [blame] | 277 | ret = ipa_msg_recv_buffered(bfd->fd, &msg, &ccon->pending_msg); |
Pablo Neira Ayuso | 10dfc26 | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 278 | if (ret <= 0) { |
Jacob Erlbeck | 141de62 | 2014-03-31 13:42:11 +0200 | [diff] [blame] | 279 | if (ret == -EAGAIN) |
| 280 | return 0; |
Pablo Neira Ayuso | 10dfc26 | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 281 | if (ret == 0) |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 282 | LOGP(DLCTRL, LOGL_INFO, "The control connection was closed\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 283 | else |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 284 | LOGP(DLCTRL, LOGL_ERROR, "Failed to parse ip access message: %d\n", ret); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 285 | |
| 286 | goto err; |
| 287 | } |
| 288 | |
| 289 | if (msg->len < sizeof(*iph) + sizeof(*iph_ext)) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 290 | LOGP(DLCTRL, LOGL_ERROR, "The message is too short.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 291 | goto err; |
| 292 | } |
| 293 | |
| 294 | iph = (struct ipaccess_head *) msg->data; |
| 295 | if (iph->proto != IPAC_PROTO_OSMO) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 296 | LOGP(DLCTRL, LOGL_ERROR, "Protocol mismatch. We got 0x%x\n", iph->proto); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 297 | goto err; |
| 298 | } |
| 299 | |
| 300 | iph_ext = (struct ipaccess_head_ext *) iph->data; |
| 301 | if (iph_ext->proto != IPAC_PROTO_EXT_CTRL) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 302 | LOGP(DLCTRL, LOGL_ERROR, "Extended protocol mismatch. We got 0x%x\n", iph_ext->proto); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 303 | goto err; |
| 304 | } |
| 305 | |
| 306 | msg->l2h = iph_ext->data; |
| 307 | |
| 308 | cmd = ctrl_cmd_parse(ccon, msg); |
| 309 | |
| 310 | if (cmd) { |
| 311 | cmd->ccon = ccon; |
Harald Welte | 528134b | 2014-08-21 15:13:08 +0200 | [diff] [blame] | 312 | if (ctrl_cmd_handle(ctrl, cmd, ctrl->data) != CTRL_CMD_HANDLED) { |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 313 | ctrl_cmd_send(queue, cmd); |
| 314 | talloc_free(cmd); |
| 315 | } |
| 316 | } else { |
| 317 | cmd = talloc_zero(ccon, struct ctrl_cmd); |
| 318 | if (!cmd) |
| 319 | goto err; |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 320 | LOGP(DLCTRL, LOGL_ERROR, "Command parser error.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 321 | cmd->type = CTRL_TYPE_ERROR; |
| 322 | cmd->id = "err"; |
| 323 | cmd->reply = "Command parser error."; |
| 324 | ctrl_cmd_send(queue, cmd); |
| 325 | talloc_free(cmd); |
| 326 | } |
| 327 | |
| 328 | msgb_free(msg); |
| 329 | return 0; |
| 330 | |
| 331 | err: |
| 332 | control_close_conn(ccon); |
| 333 | msgb_free(msg); |
| 334 | return ret; |
| 335 | } |
| 336 | |
| 337 | static int control_write_cb(struct osmo_fd *bfd, struct msgb *msg) |
| 338 | { |
| 339 | int rc; |
| 340 | |
| 341 | rc = write(bfd->fd, msg->data, msg->len); |
| 342 | if (rc != msg->len) |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 343 | LOGP(DLCTRL, LOGL_ERROR, "Failed to write message to the control connection.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 344 | |
| 345 | return rc; |
| 346 | } |
| 347 | |
| 348 | static struct ctrl_connection *ctrl_connection_alloc(void *ctx) |
| 349 | { |
| 350 | struct ctrl_connection *ccon = talloc_zero(ctx, struct ctrl_connection); |
| 351 | if (!ccon) |
| 352 | return NULL; |
| 353 | |
| 354 | osmo_wqueue_init(&ccon->write_queue, 100); |
| 355 | /* Error handling here? */ |
| 356 | |
| 357 | INIT_LLIST_HEAD(&ccon->cmds); |
Harald Welte | 39c9e7b | 2014-08-22 00:28:51 +0200 | [diff] [blame] | 358 | INIT_LLIST_HEAD(&ccon->def_cmds); |
| 359 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 360 | return ccon; |
| 361 | } |
| 362 | |
| 363 | static int listen_fd_cb(struct osmo_fd *listen_bfd, unsigned int what) |
| 364 | { |
| 365 | int ret, fd, on; |
Daniel Willmann | 0e0cf37 | 2011-05-06 16:37:25 +0200 | [diff] [blame] | 366 | struct ctrl_handle *ctrl; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 367 | struct ctrl_connection *ccon; |
| 368 | struct sockaddr_in sa; |
| 369 | socklen_t sa_len = sizeof(sa); |
| 370 | |
| 371 | |
| 372 | if (!(what & BSC_FD_READ)) |
| 373 | return 0; |
| 374 | |
| 375 | fd = accept(listen_bfd->fd, (struct sockaddr *) &sa, &sa_len); |
| 376 | if (fd < 0) { |
| 377 | perror("accept"); |
| 378 | return fd; |
| 379 | } |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 380 | LOGP(DLCTRL, LOGL_INFO, "accept()ed new control connection from %s\n", |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 381 | inet_ntoa(sa.sin_addr)); |
| 382 | |
Harald Welte | e15ac06 | 2014-12-04 14:15:36 +0100 | [diff] [blame] | 383 | #ifdef TCP_NODELAY |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 384 | on = 1; |
| 385 | ret = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on)); |
| 386 | if (ret != 0) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 387 | LOGP(DLCTRL, LOGL_ERROR, "Failed to set TCP_NODELAY: %s\n", strerror(errno)); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 388 | close(fd); |
| 389 | return ret; |
| 390 | } |
Harald Welte | e15ac06 | 2014-12-04 14:15:36 +0100 | [diff] [blame] | 391 | #endif |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 392 | ccon = ctrl_connection_alloc(listen_bfd->data); |
| 393 | if (!ccon) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 394 | LOGP(DLCTRL, LOGL_ERROR, "Failed to allocate.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 395 | close(fd); |
| 396 | return -1; |
| 397 | } |
| 398 | |
Daniel Willmann | 0e0cf37 | 2011-05-06 16:37:25 +0200 | [diff] [blame] | 399 | ctrl = listen_bfd->data; |
| 400 | ccon->write_queue.bfd.data = ctrl; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 401 | ccon->write_queue.bfd.fd = fd; |
| 402 | ccon->write_queue.bfd.when = BSC_FD_READ; |
| 403 | ccon->write_queue.read_cb = handle_control_read; |
| 404 | ccon->write_queue.write_cb = control_write_cb; |
| 405 | |
| 406 | ret = osmo_fd_register(&ccon->write_queue.bfd); |
| 407 | if (ret < 0) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 408 | LOGP(DLCTRL, LOGL_ERROR, "Could not register FD.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 409 | close(ccon->write_queue.bfd.fd); |
| 410 | talloc_free(ccon); |
| 411 | } |
| 412 | |
Daniel Willmann | 0e0cf37 | 2011-05-06 16:37:25 +0200 | [diff] [blame] | 413 | llist_add(&ccon->list_entry, &ctrl->ccon_list); |
| 414 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 415 | return ret; |
| 416 | } |
| 417 | |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 418 | static uint64_t get_rate_ctr_value(const struct rate_ctr *ctr, int intv) |
| 419 | { |
| 420 | if (intv >= RATE_CTR_INTV_NUM) |
| 421 | return 0; |
| 422 | |
| 423 | /* Absolute value */ |
| 424 | if (intv == -1) { |
| 425 | return ctr->current; |
| 426 | } else { |
| 427 | return ctr->intv[intv].rate; |
| 428 | } |
| 429 | } |
| 430 | |
Harald Welte | c9df37d | 2014-08-20 19:55:17 +0200 | [diff] [blame] | 431 | static char *get_all_rate_ctr_in_group(void *ctx, const struct rate_ctr_group *ctrg, int intv) |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 432 | { |
| 433 | int i; |
Harald Welte | c9df37d | 2014-08-20 19:55:17 +0200 | [diff] [blame] | 434 | char *counters = talloc_strdup(ctx, ""); |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 435 | if (!counters) |
| 436 | return NULL; |
| 437 | |
| 438 | for (i=0;i<ctrg->desc->num_ctr;i++) { |
Daniel Willmann | 0834a34 | 2011-07-19 12:12:10 +0200 | [diff] [blame] | 439 | counters = talloc_asprintf_append(counters, "\n%s.%u.%s %"PRIu64, |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 440 | ctrg->desc->group_name_prefix, ctrg->idx, |
| 441 | ctrg->desc->ctr_desc[i].name, |
| 442 | get_rate_ctr_value(&ctrg->ctr[i], intv)); |
| 443 | if (!counters) |
| 444 | return NULL; |
| 445 | } |
| 446 | return counters; |
| 447 | } |
| 448 | |
| 449 | static int get_rate_ctr_group(const char *ctr_group, int intv, struct ctrl_cmd *cmd) |
| 450 | { |
| 451 | int i; |
| 452 | char *counters; |
| 453 | struct rate_ctr_group *ctrg; |
| 454 | |
| 455 | cmd->reply = talloc_asprintf(cmd, "All counters in group %s", ctr_group); |
| 456 | if (!cmd->reply) |
| 457 | goto oom; |
| 458 | |
| 459 | for (i=0;;i++) { |
| 460 | ctrg = rate_ctr_get_group_by_name_idx(ctr_group, i); |
| 461 | if (!ctrg) |
| 462 | break; |
| 463 | |
Harald Welte | c9df37d | 2014-08-20 19:55:17 +0200 | [diff] [blame] | 464 | counters = get_all_rate_ctr_in_group(cmd, ctrg, intv); |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 465 | if (!counters) |
| 466 | goto oom; |
| 467 | |
| 468 | cmd->reply = talloc_asprintf_append(cmd->reply, "%s", counters); |
| 469 | talloc_free(counters); |
| 470 | if (!cmd->reply) |
| 471 | goto oom; |
| 472 | } |
| 473 | |
| 474 | /* We found no counter group by that name */ |
| 475 | if (i == 0) { |
| 476 | cmd->reply = talloc_asprintf(cmd, "No counter group with name %s.", ctr_group); |
| 477 | return CTRL_CMD_ERROR; |
| 478 | } |
| 479 | |
| 480 | return CTRL_CMD_REPLY; |
| 481 | oom: |
| 482 | cmd->reply = "OOM."; |
| 483 | return CTRL_CMD_ERROR; |
| 484 | } |
| 485 | |
| 486 | static int get_rate_ctr_group_idx(const struct rate_ctr_group *ctrg, int intv, struct ctrl_cmd *cmd) |
| 487 | { |
| 488 | char *counters; |
| 489 | |
Harald Welte | c9df37d | 2014-08-20 19:55:17 +0200 | [diff] [blame] | 490 | counters = get_all_rate_ctr_in_group(cmd, ctrg, intv); |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 491 | if (!counters) |
| 492 | goto oom; |
| 493 | |
| 494 | cmd->reply = talloc_asprintf(cmd, "All counters in %s.%u%s", |
| 495 | ctrg->desc->group_name_prefix, ctrg->idx, counters); |
| 496 | talloc_free(counters); |
| 497 | if (!cmd->reply) |
| 498 | goto oom; |
| 499 | |
| 500 | return CTRL_CMD_REPLY; |
| 501 | oom: |
| 502 | cmd->reply = "OOM."; |
| 503 | return CTRL_CMD_ERROR; |
| 504 | } |
| 505 | |
| 506 | /* rate_ctr */ |
| 507 | CTRL_CMD_DEFINE(rate_ctr, "rate_ctr *"); |
Daniel Willmann | f7c74e5 | 2011-08-05 11:48:18 +0200 | [diff] [blame] | 508 | static int get_rate_ctr(struct ctrl_cmd *cmd, void *data) |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 509 | { |
| 510 | int intv; |
| 511 | unsigned int idx; |
| 512 | char *ctr_group, *ctr_idx, *ctr_name, *tmp, *dup, *saveptr, *interval; |
| 513 | struct rate_ctr_group *ctrg; |
| 514 | const struct rate_ctr *ctr; |
| 515 | |
| 516 | dup = talloc_strdup(cmd, cmd->variable); |
| 517 | if (!dup) |
| 518 | goto oom; |
| 519 | |
| 520 | /* Skip over possible prefixes (net.) */ |
| 521 | tmp = strstr(dup, "rate_ctr"); |
| 522 | if (!tmp) { |
| 523 | talloc_free(dup); |
| 524 | cmd->reply = "rate_ctr not a token in rate_ctr command!"; |
| 525 | goto err; |
| 526 | } |
| 527 | |
| 528 | strtok_r(tmp, ".", &saveptr); |
| 529 | interval = strtok_r(NULL, ".", &saveptr); |
| 530 | if (!interval) { |
| 531 | talloc_free(dup); |
| 532 | cmd->reply = "Missing interval."; |
| 533 | goto err; |
| 534 | } |
| 535 | |
| 536 | if (!strcmp(interval, "abs")) { |
| 537 | intv = -1; |
| 538 | } else if (!strcmp(interval, "per_sec")) { |
| 539 | intv = RATE_CTR_INTV_SEC; |
| 540 | } else if (!strcmp(interval, "per_min")) { |
| 541 | intv = RATE_CTR_INTV_MIN; |
| 542 | } else if (!strcmp(interval, "per_hour")) { |
| 543 | intv = RATE_CTR_INTV_HOUR; |
| 544 | } else if (!strcmp(interval, "per_day")) { |
| 545 | intv = RATE_CTR_INTV_DAY; |
| 546 | } else { |
| 547 | talloc_free(dup); |
| 548 | cmd->reply = "Wrong interval."; |
| 549 | goto err; |
| 550 | } |
| 551 | |
| 552 | ctr_group = strtok_r(NULL, ".", &saveptr); |
| 553 | tmp = strtok_r(NULL, ".", &saveptr); |
| 554 | if (!ctr_group || !tmp) { |
| 555 | talloc_free(dup); |
| 556 | cmd->reply = "Counter group must be of form a.b"; |
| 557 | goto err; |
| 558 | } |
| 559 | ctr_group[strlen(ctr_group)] = '.'; |
| 560 | |
| 561 | ctr_idx = strtok_r(NULL, ".", &saveptr); |
| 562 | if (!ctr_idx) { |
| 563 | talloc_free(dup); |
| 564 | return get_rate_ctr_group(ctr_group, intv, cmd); |
| 565 | } |
| 566 | idx = atoi(ctr_idx); |
| 567 | |
| 568 | ctrg = rate_ctr_get_group_by_name_idx(ctr_group, idx); |
| 569 | if (!ctrg) { |
| 570 | talloc_free(dup); |
| 571 | cmd->reply = "Counter group not found."; |
| 572 | goto err; |
| 573 | } |
| 574 | |
| 575 | ctr_name = strtok_r(NULL, "\0", &saveptr); |
| 576 | if (!ctr_name) { |
| 577 | talloc_free(dup); |
| 578 | return get_rate_ctr_group_idx(ctrg, intv, cmd); |
| 579 | } |
| 580 | |
| 581 | ctr = rate_ctr_get_by_name(ctrg, ctr_name); |
| 582 | if (!ctr) { |
| 583 | cmd->reply = "Counter name not found."; |
| 584 | talloc_free(dup); |
| 585 | goto err; |
| 586 | } |
| 587 | |
| 588 | talloc_free(dup); |
| 589 | |
Holger Hans Peter Freyther | ad6451f | 2012-03-16 12:18:39 +0100 | [diff] [blame] | 590 | cmd->reply = talloc_asprintf(cmd, "%"PRIu64, get_rate_ctr_value(ctr, intv)); |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 591 | if (!cmd->reply) |
| 592 | goto oom; |
| 593 | |
| 594 | return CTRL_CMD_REPLY; |
| 595 | oom: |
| 596 | cmd->reply = "OOM"; |
| 597 | err: |
| 598 | return CTRL_CMD_ERROR; |
| 599 | } |
| 600 | |
Daniel Willmann | f7c74e5 | 2011-08-05 11:48:18 +0200 | [diff] [blame] | 601 | static int set_rate_ctr(struct ctrl_cmd *cmd, void *data) |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 602 | { |
| 603 | cmd->reply = "Can't set rate counter."; |
| 604 | |
| 605 | return CTRL_CMD_ERROR; |
| 606 | } |
| 607 | |
Daniel Willmann | f7c74e5 | 2011-08-05 11:48:18 +0200 | [diff] [blame] | 608 | static int verify_rate_ctr(struct ctrl_cmd *cmd, const char *value, void *data) |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 609 | { |
| 610 | return 0; |
| 611 | } |
| 612 | |
| 613 | /* counter */ |
| 614 | CTRL_CMD_DEFINE(counter, "counter *"); |
Daniel Willmann | f7c74e5 | 2011-08-05 11:48:18 +0200 | [diff] [blame] | 615 | static int get_counter(struct ctrl_cmd *cmd, void *data) |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 616 | { |
| 617 | char *ctr_name, *tmp, *dup, *saveptr; |
| 618 | struct osmo_counter *counter; |
| 619 | |
| 620 | cmd->reply = "OOM"; |
| 621 | dup = talloc_strdup(cmd, cmd->variable); |
| 622 | if (!dup) |
| 623 | goto err; |
| 624 | |
| 625 | |
| 626 | tmp = strstr(dup, "counter"); |
| 627 | if (!tmp) { |
| 628 | talloc_free(dup); |
| 629 | goto err; |
| 630 | } |
| 631 | |
| 632 | strtok_r(tmp, ".", &saveptr); |
| 633 | ctr_name = strtok_r(NULL, "\0", &saveptr); |
| 634 | |
| 635 | if (!ctr_name) |
| 636 | goto err; |
| 637 | |
| 638 | counter = osmo_counter_get_by_name(ctr_name); |
| 639 | if (!counter) { |
| 640 | cmd->reply = "Counter name not found."; |
| 641 | talloc_free(dup); |
| 642 | goto err; |
| 643 | } |
| 644 | |
| 645 | talloc_free(dup); |
| 646 | |
| 647 | cmd->reply = talloc_asprintf(cmd, "%lu", counter->value); |
| 648 | if (!cmd->reply) { |
| 649 | cmd->reply = "OOM"; |
| 650 | goto err; |
| 651 | } |
| 652 | |
| 653 | return CTRL_CMD_REPLY; |
| 654 | err: |
| 655 | return CTRL_CMD_ERROR; |
| 656 | } |
| 657 | |
Daniel Willmann | f7c74e5 | 2011-08-05 11:48:18 +0200 | [diff] [blame] | 658 | static int set_counter(struct ctrl_cmd *cmd, void *data) |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 659 | { |
| 660 | |
| 661 | cmd->reply = "Can't set counter."; |
| 662 | |
| 663 | return CTRL_CMD_ERROR; |
| 664 | } |
| 665 | |
Daniel Willmann | f7c74e5 | 2011-08-05 11:48:18 +0200 | [diff] [blame] | 666 | static int verify_counter(struct ctrl_cmd *cmd, const char *value, void *data) |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 667 | { |
| 668 | return 0; |
| 669 | } |
| 670 | |
Harald Welte | ae2fcb2 | 2014-08-21 15:20:00 +0200 | [diff] [blame] | 671 | struct ctrl_handle *ctrl_interface_setup(void *data, uint16_t port, |
| 672 | ctrl_cmd_lookup lookup) |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 673 | { |
| 674 | int ret; |
| 675 | struct ctrl_handle *ctrl; |
| 676 | |
Harald Welte | c78e74e | 2014-08-21 14:34:32 +0200 | [diff] [blame] | 677 | ctrl = talloc_zero(data, struct ctrl_handle); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 678 | if (!ctrl) |
Daniel Willmann | 782974b | 2011-07-22 17:55:42 +0200 | [diff] [blame] | 679 | return NULL; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 680 | |
Daniel Willmann | 0e0cf37 | 2011-05-06 16:37:25 +0200 | [diff] [blame] | 681 | INIT_LLIST_HEAD(&ctrl->ccon_list); |
| 682 | |
Harald Welte | c78e74e | 2014-08-21 14:34:32 +0200 | [diff] [blame] | 683 | ctrl->data = data; |
Harald Welte | 528134b | 2014-08-21 15:13:08 +0200 | [diff] [blame] | 684 | ctrl->lookup = lookup; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 685 | |
| 686 | ctrl_node_vec = vector_init(5); |
Daniel Willmann | 9f97316 | 2011-08-05 12:22:35 +0200 | [diff] [blame] | 687 | if (!ctrl_node_vec) |
| 688 | goto err; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 689 | |
| 690 | /* Listen for control connections */ |
Harald Welte | 1238cc6 | 2014-08-20 19:50:04 +0200 | [diff] [blame] | 691 | ctrl->listen_fd.cb = listen_fd_cb; |
| 692 | ctrl->listen_fd.data = ctrl; |
| 693 | ret = osmo_sock_init_ofd(&ctrl->listen_fd, AF_INET, SOCK_STREAM, IPPROTO_TCP, |
| 694 | "127.0.0.1", port, OSMO_SOCK_F_BIND); |
Daniel Willmann | 9f97316 | 2011-08-05 12:22:35 +0200 | [diff] [blame] | 695 | if (ret < 0) |
| 696 | goto err_vec; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 697 | |
Daniel Willmann | 9f97316 | 2011-08-05 12:22:35 +0200 | [diff] [blame] | 698 | ret = ctrl_cmd_install(CTRL_NODE_ROOT, &cmd_rate_ctr); |
| 699 | if (ret) |
| 700 | goto err_vec; |
| 701 | ret = ctrl_cmd_install(CTRL_NODE_ROOT, &cmd_counter); |
| 702 | if (ret) |
| 703 | goto err_vec; |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 704 | |
Daniel Willmann | 782974b | 2011-07-22 17:55:42 +0200 | [diff] [blame] | 705 | return ctrl; |
Daniel Willmann | 9f97316 | 2011-08-05 12:22:35 +0200 | [diff] [blame] | 706 | err_vec: |
| 707 | vector_free(ctrl_node_vec); |
| 708 | ctrl_node_vec = NULL; |
| 709 | err: |
| 710 | talloc_free(ctrl); |
| 711 | return NULL; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 712 | } |