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 | |
Holger Hans Peter Freyther | 267fd86 | 2015-03-18 21:52:38 +0100 | [diff] [blame] | 24 | #include "config.h" |
| 25 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 26 | #include <errno.h> |
Daniel Willmann | 0834a34 | 2011-07-19 12:12:10 +0200 | [diff] [blame] | 27 | #include <inttypes.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 28 | #include <stdio.h> |
| 29 | #include <stdlib.h> |
| 30 | #include <string.h> |
| 31 | #include <time.h> |
| 32 | #include <unistd.h> |
| 33 | |
| 34 | #include <arpa/inet.h> |
| 35 | |
Holger Hans Peter Freyther | 5e21131 | 2014-08-21 16:31:52 +0200 | [diff] [blame] | 36 | #include <netinet/in.h> |
Harald Welte | e15ac06 | 2014-12-04 14:15:36 +0100 | [diff] [blame] | 37 | #ifdef HAVE_NETINET_TCP_H |
| 38 | #include <netinet/tcp.h> |
| 39 | #endif |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 40 | |
Harald Welte | e15ac06 | 2014-12-04 14:15:36 +0100 | [diff] [blame] | 41 | #include <fcntl.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 42 | #include <sys/ioctl.h> |
| 43 | #include <sys/socket.h> |
| 44 | #include <sys/types.h> |
| 45 | |
Harald Welte | 1238cc6 | 2014-08-20 19:50:04 +0200 | [diff] [blame] | 46 | #include <osmocom/ctrl/control_cmd.h> |
| 47 | #include <osmocom/ctrl/control_if.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 48 | |
| 49 | #include <osmocom/core/msgb.h> |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 50 | #include <osmocom/core/rate_ctr.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 51 | #include <osmocom/core/select.h> |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 52 | #include <osmocom/core/statistics.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 53 | #include <osmocom/core/talloc.h> |
Harald Welte | 1238cc6 | 2014-08-20 19:50:04 +0200 | [diff] [blame] | 54 | #include <osmocom/core/socket.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 55 | |
Harald Welte | 1238cc6 | 2014-08-20 19:50:04 +0200 | [diff] [blame] | 56 | #include <osmocom/gsm/protocol/ipaccess.h> |
Harald Welte | acbb4c9 | 2014-08-20 22:51:25 +0200 | [diff] [blame] | 57 | #include <osmocom/gsm/ipa.h> |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 58 | |
| 59 | #include <osmocom/vty/command.h> |
| 60 | #include <osmocom/vty/vector.h> |
| 61 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 62 | vector ctrl_node_vec; |
| 63 | |
Harald Welte | 528134b | 2014-08-21 15:13:08 +0200 | [diff] [blame] | 64 | int ctrl_parse_get_num(vector vline, int i, long *num) |
| 65 | { |
| 66 | char *token, *tmp; |
| 67 | |
| 68 | if (i >= vector_active(vline)) |
| 69 | return 0; |
| 70 | token = vector_slot(vline, i); |
| 71 | |
| 72 | errno = 0; |
| 73 | if (token[0] == '\0') |
| 74 | return 0; |
| 75 | |
| 76 | *num = strtol(token, &tmp, 10); |
| 77 | if (tmp[0] != '\0' || errno != 0) |
| 78 | return 0; |
| 79 | |
| 80 | return 1; |
| 81 | } |
| 82 | |
Daniel Willmann | 35a1b3b | 2011-05-06 16:38:11 +0200 | [diff] [blame] | 83 | /* Send command to all */ |
| 84 | int ctrl_cmd_send_to_all(struct ctrl_handle *ctrl, struct ctrl_cmd *cmd) |
| 85 | { |
| 86 | struct ctrl_connection *ccon; |
| 87 | int ret = 0; |
| 88 | |
| 89 | llist_for_each_entry(ccon, &ctrl->ccon_list, list_entry) { |
| 90 | if (ccon == cmd->ccon) |
| 91 | continue; |
| 92 | if (ctrl_cmd_send(&ccon->write_queue, cmd)) |
| 93 | ret++; |
| 94 | } |
| 95 | return ret; |
| 96 | } |
| 97 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 98 | int ctrl_cmd_send(struct osmo_wqueue *queue, struct ctrl_cmd *cmd) |
| 99 | { |
| 100 | int ret; |
| 101 | struct msgb *msg; |
| 102 | |
| 103 | msg = ctrl_cmd_make(cmd); |
| 104 | if (!msg) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 105 | LOGP(DLCTRL, LOGL_ERROR, "Could not generate msg\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 106 | return -1; |
| 107 | } |
| 108 | |
Harald Welte | acbb4c9 | 2014-08-20 22:51:25 +0200 | [diff] [blame] | 109 | ipa_prepend_header_ext(msg, IPAC_PROTO_EXT_CTRL); |
| 110 | ipa_prepend_header(msg, IPAC_PROTO_OSMO); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 111 | |
| 112 | ret = osmo_wqueue_enqueue(queue, msg); |
| 113 | if (ret != 0) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 114 | LOGP(DLCTRL, LOGL_ERROR, "Failed to enqueue the command.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 115 | msgb_free(msg); |
| 116 | } |
| 117 | return ret; |
| 118 | } |
| 119 | |
Max | bc067eb | 2016-08-04 11:07:08 +0200 | [diff] [blame] | 120 | /*! \brief Send TRAP over given Control Interface |
| 121 | * \param[in] ctrl Control Interface over which TRAP will be sent |
| 122 | * \param[in] name Name of the TRAP variable |
| 123 | * \param[in] value Value of the TRAP variable |
| 124 | * \return Negative value on error, result of ctrl_cmd_send_to_all() otherwise |
| 125 | */ |
| 126 | int ctrl_cmd_send_trap(struct ctrl_handle *ctrl, const char *name, char *value) |
| 127 | { |
| 128 | int r; |
| 129 | struct ctrl_cmd *cmd = ctrl_cmd_create(NULL, CTRL_TYPE_TRAP); |
| 130 | if (!cmd) |
| 131 | return -ENOMEM; |
| 132 | |
| 133 | cmd->id = "0"; /* It's a TRAP! */ |
Harald Welte | f12d40f | 2017-02-08 15:46:53 +0000 | [diff] [blame] | 134 | cmd->variable = (char *) name; |
Max | bc067eb | 2016-08-04 11:07:08 +0200 | [diff] [blame] | 135 | cmd->reply = value; |
| 136 | r = ctrl_cmd_send_to_all(ctrl, cmd); |
| 137 | talloc_free(cmd); |
| 138 | return r; |
| 139 | } |
| 140 | |
Daniel Willmann | f2e75d4 | 2011-07-22 18:08:31 +0200 | [diff] [blame] | 141 | struct ctrl_cmd *ctrl_cmd_trap(struct ctrl_cmd *cmd) |
| 142 | { |
| 143 | struct ctrl_cmd *trap; |
| 144 | |
Harald Welte | c9df37d | 2014-08-20 19:55:17 +0200 | [diff] [blame] | 145 | trap = ctrl_cmd_cpy(cmd, cmd); |
Daniel Willmann | f2e75d4 | 2011-07-22 18:08:31 +0200 | [diff] [blame] | 146 | if (!trap) |
| 147 | return NULL; |
| 148 | |
| 149 | trap->ccon = cmd->ccon; |
| 150 | trap->type = CTRL_TYPE_TRAP; |
| 151 | return trap; |
| 152 | } |
| 153 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 154 | static void control_close_conn(struct ctrl_connection *ccon) |
| 155 | { |
Harald Welte | 39c9e7b | 2014-08-22 00:28:51 +0200 | [diff] [blame] | 156 | struct ctrl_cmd_def *cd, *cd2; |
| 157 | |
Harald Welte | 6d96dd7 | 2013-03-16 10:13:04 +0100 | [diff] [blame] | 158 | osmo_wqueue_clear(&ccon->write_queue); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 159 | close(ccon->write_queue.bfd.fd); |
| 160 | osmo_fd_unregister(&ccon->write_queue.bfd); |
Daniel Willmann | 0e0cf37 | 2011-05-06 16:37:25 +0200 | [diff] [blame] | 161 | llist_del(&ccon->list_entry); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 162 | if (ccon->closed_cb) |
| 163 | ccon->closed_cb(ccon); |
Jacob Erlbeck | 141de62 | 2014-03-31 13:42:11 +0200 | [diff] [blame] | 164 | msgb_free(ccon->pending_msg); |
Harald Welte | 39c9e7b | 2014-08-22 00:28:51 +0200 | [diff] [blame] | 165 | |
| 166 | /* clean up deferred commands */ |
| 167 | llist_for_each_entry_safe(cd, cd2, &ccon->def_cmds, list) { |
| 168 | /* delete from list of def_cmds for this ccon */ |
| 169 | llist_del(&cd->list); |
| 170 | /* not strictly needed as this is a slave to the ccon which we |
| 171 | * are about to free anyway */ |
| 172 | talloc_free(cd->cmd); |
| 173 | /* set the CMD to null, this is the indication to the user that |
| 174 | * the connection for this command has gone */ |
| 175 | cd->cmd = NULL; |
| 176 | } |
| 177 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 178 | talloc_free(ccon); |
| 179 | } |
| 180 | |
Harald Welte | 528134b | 2014-08-21 15:13:08 +0200 | [diff] [blame] | 181 | int ctrl_cmd_handle(struct ctrl_handle *ctrl, struct ctrl_cmd *cmd, |
| 182 | void *data) |
| 183 | { |
| 184 | char *request; |
| 185 | int i, j, ret, node; |
| 186 | |
| 187 | vector vline, cmdvec, cmds_vec; |
| 188 | |
| 189 | ret = CTRL_CMD_ERROR; |
| 190 | cmd->reply = NULL; |
| 191 | node = CTRL_NODE_ROOT; |
| 192 | cmd->node = data; |
| 193 | |
| 194 | request = talloc_strdup(cmd, cmd->variable); |
| 195 | if (!request) |
| 196 | goto err; |
| 197 | |
| 198 | for (i=0;i<strlen(request);i++) { |
| 199 | if (request[i] == '.') |
| 200 | request[i] = ' '; |
| 201 | } |
| 202 | |
| 203 | vline = cmd_make_strvec(request); |
| 204 | talloc_free(request); |
| 205 | if (!vline) { |
| 206 | cmd->reply = "cmd_make_strvec failed."; |
| 207 | goto err; |
| 208 | } |
| 209 | |
| 210 | for (i=0;i<vector_active(vline);i++) { |
| 211 | int rc; |
| 212 | |
| 213 | if (ctrl->lookup) |
| 214 | rc = ctrl->lookup(data, vline, &node, &cmd->node, &i); |
| 215 | else |
| 216 | rc = 0; |
| 217 | |
| 218 | if (rc == 1) { |
| 219 | /* do nothing */ |
| 220 | } else if (rc == -ENODEV) |
| 221 | goto err_missing; |
| 222 | else if (rc == -ERANGE) |
| 223 | goto err_index; |
| 224 | else { |
| 225 | /* If we're here the rest must be the command */ |
| 226 | cmdvec = vector_init(vector_active(vline)-i); |
| 227 | for (j=i; j<vector_active(vline); j++) { |
| 228 | vector_set(cmdvec, vector_slot(vline, j)); |
| 229 | } |
| 230 | |
| 231 | /* Get the command vector of the right node */ |
| 232 | cmds_vec = vector_lookup(ctrl_node_vec, node); |
| 233 | |
| 234 | if (!cmds_vec) { |
| 235 | cmd->reply = "Command not found."; |
| 236 | vector_free(cmdvec); |
| 237 | break; |
| 238 | } |
| 239 | |
| 240 | ret = ctrl_cmd_exec(cmdvec, cmd, cmds_vec, data); |
| 241 | |
| 242 | vector_free(cmdvec); |
| 243 | break; |
| 244 | } |
| 245 | |
| 246 | if (i+1 == vector_active(vline)) |
| 247 | cmd->reply = "Command not present."; |
| 248 | } |
| 249 | |
| 250 | cmd_free_strvec(vline); |
| 251 | |
| 252 | err: |
| 253 | if (!cmd->reply) { |
| 254 | if (ret == CTRL_CMD_ERROR) { |
| 255 | cmd->reply = "An error has occured."; |
| 256 | LOGP(DLCTRL, LOGL_NOTICE, |
| 257 | "%s: cmd->reply has not been set (ERROR).\n", |
| 258 | cmd->variable); |
| 259 | } else if (ret == CTRL_CMD_REPLY) { |
| 260 | LOGP(DLCTRL, LOGL_NOTICE, |
| 261 | "%s: cmd->reply has not been set (type = %d).\n", |
| 262 | cmd->variable, cmd->type); |
| 263 | cmd->reply = ""; |
| 264 | } else { |
| 265 | cmd->reply = "Command has been handled."; |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | if (ret == CTRL_CMD_ERROR) |
| 270 | cmd->type = CTRL_TYPE_ERROR; |
| 271 | return ret; |
| 272 | |
| 273 | err_missing: |
| 274 | cmd_free_strvec(vline); |
| 275 | cmd->type = CTRL_TYPE_ERROR; |
| 276 | cmd->reply = "Error while resolving object"; |
| 277 | return ret; |
| 278 | err_index: |
| 279 | cmd_free_strvec(vline); |
| 280 | cmd->type = CTRL_TYPE_ERROR; |
| 281 | cmd->reply = "Error while parsing the index."; |
| 282 | return ret; |
| 283 | } |
| 284 | |
| 285 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 286 | static int handle_control_read(struct osmo_fd * bfd) |
| 287 | { |
Pablo Neira Ayuso | 10dfc26 | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 288 | int ret = -1; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 289 | struct osmo_wqueue *queue; |
| 290 | struct ctrl_connection *ccon; |
| 291 | struct ipaccess_head *iph; |
| 292 | struct ipaccess_head_ext *iph_ext; |
Alexander Huemer | 1d3634e | 2011-10-12 00:29:30 +0200 | [diff] [blame] | 293 | struct msgb *msg = NULL; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 294 | struct ctrl_cmd *cmd; |
| 295 | struct ctrl_handle *ctrl = bfd->data; |
| 296 | |
| 297 | queue = container_of(bfd, struct osmo_wqueue, bfd); |
| 298 | ccon = container_of(queue, struct ctrl_connection, write_queue); |
| 299 | |
Jacob Erlbeck | 141de62 | 2014-03-31 13:42:11 +0200 | [diff] [blame] | 300 | ret = ipa_msg_recv_buffered(bfd->fd, &msg, &ccon->pending_msg); |
Pablo Neira Ayuso | 10dfc26 | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 301 | if (ret <= 0) { |
Jacob Erlbeck | 141de62 | 2014-03-31 13:42:11 +0200 | [diff] [blame] | 302 | if (ret == -EAGAIN) |
| 303 | return 0; |
Pablo Neira Ayuso | 10dfc26 | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 304 | if (ret == 0) |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 305 | LOGP(DLCTRL, LOGL_INFO, "The control connection was closed\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 306 | else |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 307 | 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] | 308 | |
| 309 | goto err; |
| 310 | } |
| 311 | |
| 312 | if (msg->len < sizeof(*iph) + sizeof(*iph_ext)) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 313 | LOGP(DLCTRL, LOGL_ERROR, "The message is too short.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 314 | goto err; |
| 315 | } |
| 316 | |
| 317 | iph = (struct ipaccess_head *) msg->data; |
| 318 | if (iph->proto != IPAC_PROTO_OSMO) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 319 | 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] | 320 | goto err; |
| 321 | } |
| 322 | |
| 323 | iph_ext = (struct ipaccess_head_ext *) iph->data; |
| 324 | if (iph_ext->proto != IPAC_PROTO_EXT_CTRL) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 325 | 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] | 326 | goto err; |
| 327 | } |
| 328 | |
| 329 | msg->l2h = iph_ext->data; |
| 330 | |
| 331 | cmd = ctrl_cmd_parse(ccon, msg); |
| 332 | |
| 333 | if (cmd) { |
| 334 | cmd->ccon = ccon; |
Harald Welte | 528134b | 2014-08-21 15:13:08 +0200 | [diff] [blame] | 335 | if (ctrl_cmd_handle(ctrl, cmd, ctrl->data) != CTRL_CMD_HANDLED) { |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 336 | ctrl_cmd_send(queue, cmd); |
| 337 | talloc_free(cmd); |
| 338 | } |
| 339 | } else { |
| 340 | cmd = talloc_zero(ccon, struct ctrl_cmd); |
| 341 | if (!cmd) |
| 342 | goto err; |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 343 | LOGP(DLCTRL, LOGL_ERROR, "Command parser error.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 344 | cmd->type = CTRL_TYPE_ERROR; |
| 345 | cmd->id = "err"; |
| 346 | cmd->reply = "Command parser error."; |
| 347 | ctrl_cmd_send(queue, cmd); |
| 348 | talloc_free(cmd); |
| 349 | } |
| 350 | |
| 351 | msgb_free(msg); |
| 352 | return 0; |
| 353 | |
| 354 | err: |
| 355 | control_close_conn(ccon); |
| 356 | msgb_free(msg); |
| 357 | return ret; |
| 358 | } |
| 359 | |
| 360 | static int control_write_cb(struct osmo_fd *bfd, struct msgb *msg) |
| 361 | { |
| 362 | int rc; |
| 363 | |
| 364 | rc = write(bfd->fd, msg->data, msg->len); |
| 365 | if (rc != msg->len) |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 366 | 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] | 367 | |
| 368 | return rc; |
| 369 | } |
| 370 | |
| 371 | static struct ctrl_connection *ctrl_connection_alloc(void *ctx) |
| 372 | { |
| 373 | struct ctrl_connection *ccon = talloc_zero(ctx, struct ctrl_connection); |
| 374 | if (!ccon) |
| 375 | return NULL; |
| 376 | |
| 377 | osmo_wqueue_init(&ccon->write_queue, 100); |
| 378 | /* Error handling here? */ |
| 379 | |
| 380 | INIT_LLIST_HEAD(&ccon->cmds); |
Harald Welte | 39c9e7b | 2014-08-22 00:28:51 +0200 | [diff] [blame] | 381 | INIT_LLIST_HEAD(&ccon->def_cmds); |
| 382 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 383 | return ccon; |
| 384 | } |
| 385 | |
| 386 | static int listen_fd_cb(struct osmo_fd *listen_bfd, unsigned int what) |
| 387 | { |
| 388 | int ret, fd, on; |
Daniel Willmann | 0e0cf37 | 2011-05-06 16:37:25 +0200 | [diff] [blame] | 389 | struct ctrl_handle *ctrl; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 390 | struct ctrl_connection *ccon; |
| 391 | struct sockaddr_in sa; |
| 392 | socklen_t sa_len = sizeof(sa); |
| 393 | |
| 394 | |
| 395 | if (!(what & BSC_FD_READ)) |
| 396 | return 0; |
| 397 | |
| 398 | fd = accept(listen_bfd->fd, (struct sockaddr *) &sa, &sa_len); |
| 399 | if (fd < 0) { |
| 400 | perror("accept"); |
| 401 | return fd; |
| 402 | } |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 403 | LOGP(DLCTRL, LOGL_INFO, "accept()ed new control connection from %s\n", |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 404 | inet_ntoa(sa.sin_addr)); |
| 405 | |
Harald Welte | e15ac06 | 2014-12-04 14:15:36 +0100 | [diff] [blame] | 406 | #ifdef TCP_NODELAY |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 407 | on = 1; |
| 408 | ret = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on)); |
| 409 | if (ret != 0) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 410 | 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] | 411 | close(fd); |
| 412 | return ret; |
| 413 | } |
Harald Welte | e15ac06 | 2014-12-04 14:15:36 +0100 | [diff] [blame] | 414 | #endif |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 415 | ccon = ctrl_connection_alloc(listen_bfd->data); |
| 416 | if (!ccon) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 417 | LOGP(DLCTRL, LOGL_ERROR, "Failed to allocate.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 418 | close(fd); |
| 419 | return -1; |
| 420 | } |
| 421 | |
Daniel Willmann | 0e0cf37 | 2011-05-06 16:37:25 +0200 | [diff] [blame] | 422 | ctrl = listen_bfd->data; |
| 423 | ccon->write_queue.bfd.data = ctrl; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 424 | ccon->write_queue.bfd.fd = fd; |
| 425 | ccon->write_queue.bfd.when = BSC_FD_READ; |
| 426 | ccon->write_queue.read_cb = handle_control_read; |
| 427 | ccon->write_queue.write_cb = control_write_cb; |
| 428 | |
| 429 | ret = osmo_fd_register(&ccon->write_queue.bfd); |
| 430 | if (ret < 0) { |
Harald Welte | 7fd0c83 | 2014-08-20 19:58:13 +0200 | [diff] [blame] | 431 | LOGP(DLCTRL, LOGL_ERROR, "Could not register FD.\n"); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 432 | close(ccon->write_queue.bfd.fd); |
| 433 | talloc_free(ccon); |
| 434 | } |
| 435 | |
Daniel Willmann | 0e0cf37 | 2011-05-06 16:37:25 +0200 | [diff] [blame] | 436 | llist_add(&ccon->list_entry, &ctrl->ccon_list); |
| 437 | |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 438 | return ret; |
| 439 | } |
| 440 | |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 441 | static uint64_t get_rate_ctr_value(const struct rate_ctr *ctr, int intv) |
| 442 | { |
| 443 | if (intv >= RATE_CTR_INTV_NUM) |
| 444 | return 0; |
| 445 | |
| 446 | /* Absolute value */ |
| 447 | if (intv == -1) { |
| 448 | return ctr->current; |
| 449 | } else { |
| 450 | return ctr->intv[intv].rate; |
| 451 | } |
| 452 | } |
| 453 | |
Harald Welte | c9df37d | 2014-08-20 19:55:17 +0200 | [diff] [blame] | 454 | 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] | 455 | { |
| 456 | int i; |
Harald Welte | c9df37d | 2014-08-20 19:55:17 +0200 | [diff] [blame] | 457 | char *counters = talloc_strdup(ctx, ""); |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 458 | if (!counters) |
| 459 | return NULL; |
| 460 | |
| 461 | for (i=0;i<ctrg->desc->num_ctr;i++) { |
Daniel Willmann | 0834a34 | 2011-07-19 12:12:10 +0200 | [diff] [blame] | 462 | counters = talloc_asprintf_append(counters, "\n%s.%u.%s %"PRIu64, |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 463 | ctrg->desc->group_name_prefix, ctrg->idx, |
| 464 | ctrg->desc->ctr_desc[i].name, |
| 465 | get_rate_ctr_value(&ctrg->ctr[i], intv)); |
| 466 | if (!counters) |
| 467 | return NULL; |
| 468 | } |
| 469 | return counters; |
| 470 | } |
| 471 | |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 472 | static int get_rate_ctr_group_idx(const struct rate_ctr_group *ctrg, int intv, struct ctrl_cmd *cmd) |
| 473 | { |
| 474 | char *counters; |
| 475 | |
Harald Welte | c9df37d | 2014-08-20 19:55:17 +0200 | [diff] [blame] | 476 | counters = get_all_rate_ctr_in_group(cmd, ctrg, intv); |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 477 | if (!counters) |
| 478 | goto oom; |
| 479 | |
| 480 | cmd->reply = talloc_asprintf(cmd, "All counters in %s.%u%s", |
| 481 | ctrg->desc->group_name_prefix, ctrg->idx, counters); |
| 482 | talloc_free(counters); |
| 483 | if (!cmd->reply) |
| 484 | goto oom; |
| 485 | |
| 486 | return CTRL_CMD_REPLY; |
| 487 | oom: |
| 488 | cmd->reply = "OOM."; |
| 489 | return CTRL_CMD_ERROR; |
| 490 | } |
| 491 | |
| 492 | /* rate_ctr */ |
| 493 | CTRL_CMD_DEFINE(rate_ctr, "rate_ctr *"); |
Daniel Willmann | f7c74e5 | 2011-08-05 11:48:18 +0200 | [diff] [blame] | 494 | static int get_rate_ctr(struct ctrl_cmd *cmd, void *data) |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 495 | { |
| 496 | int intv; |
| 497 | unsigned int idx; |
Neels Hofmeyr | 5b34f77 | 2016-09-19 14:15:03 +0200 | [diff] [blame] | 498 | char *ctr_group, *ctr_idx, *tmp, *dup, *saveptr, *interval; |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 499 | struct rate_ctr_group *ctrg; |
| 500 | const struct rate_ctr *ctr; |
| 501 | |
| 502 | dup = talloc_strdup(cmd, cmd->variable); |
| 503 | if (!dup) |
| 504 | goto oom; |
| 505 | |
| 506 | /* Skip over possible prefixes (net.) */ |
| 507 | tmp = strstr(dup, "rate_ctr"); |
| 508 | if (!tmp) { |
| 509 | talloc_free(dup); |
| 510 | cmd->reply = "rate_ctr not a token in rate_ctr command!"; |
| 511 | goto err; |
| 512 | } |
| 513 | |
| 514 | strtok_r(tmp, ".", &saveptr); |
| 515 | interval = strtok_r(NULL, ".", &saveptr); |
| 516 | if (!interval) { |
| 517 | talloc_free(dup); |
| 518 | cmd->reply = "Missing interval."; |
| 519 | goto err; |
| 520 | } |
| 521 | |
| 522 | if (!strcmp(interval, "abs")) { |
| 523 | intv = -1; |
| 524 | } else if (!strcmp(interval, "per_sec")) { |
| 525 | intv = RATE_CTR_INTV_SEC; |
| 526 | } else if (!strcmp(interval, "per_min")) { |
| 527 | intv = RATE_CTR_INTV_MIN; |
| 528 | } else if (!strcmp(interval, "per_hour")) { |
| 529 | intv = RATE_CTR_INTV_HOUR; |
| 530 | } else if (!strcmp(interval, "per_day")) { |
| 531 | intv = RATE_CTR_INTV_DAY; |
| 532 | } else { |
| 533 | talloc_free(dup); |
| 534 | cmd->reply = "Wrong interval."; |
| 535 | goto err; |
| 536 | } |
| 537 | |
| 538 | ctr_group = strtok_r(NULL, ".", &saveptr); |
Max | 22886d9 | 2016-06-14 18:17:06 +0200 | [diff] [blame] | 539 | ctr_idx = strtok_r(NULL, ".", &saveptr); |
| 540 | if (!ctr_group || !ctr_idx) { |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 541 | talloc_free(dup); |
Max | 22886d9 | 2016-06-14 18:17:06 +0200 | [diff] [blame] | 542 | cmd->reply = "Counter group must be of name.index form e. g. " |
| 543 | "e1inp.0"; |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 544 | goto err; |
| 545 | } |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 546 | |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 547 | idx = atoi(ctr_idx); |
| 548 | |
| 549 | ctrg = rate_ctr_get_group_by_name_idx(ctr_group, idx); |
| 550 | if (!ctrg) { |
| 551 | talloc_free(dup); |
Max | 22886d9 | 2016-06-14 18:17:06 +0200 | [diff] [blame] | 552 | cmd->reply = "Counter group with given name and index not found"; |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 553 | goto err; |
| 554 | } |
| 555 | |
Max | 22886d9 | 2016-06-14 18:17:06 +0200 | [diff] [blame] | 556 | if (!strlen(saveptr)) { |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 557 | talloc_free(dup); |
| 558 | return get_rate_ctr_group_idx(ctrg, intv, cmd); |
| 559 | } |
| 560 | |
Max | 22886d9 | 2016-06-14 18:17:06 +0200 | [diff] [blame] | 561 | ctr = rate_ctr_get_by_name(ctrg, saveptr); |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 562 | if (!ctr) { |
| 563 | cmd->reply = "Counter name not found."; |
| 564 | talloc_free(dup); |
| 565 | goto err; |
| 566 | } |
| 567 | |
| 568 | talloc_free(dup); |
| 569 | |
Holger Hans Peter Freyther | ad6451f | 2012-03-16 12:18:39 +0100 | [diff] [blame] | 570 | cmd->reply = talloc_asprintf(cmd, "%"PRIu64, get_rate_ctr_value(ctr, intv)); |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 571 | if (!cmd->reply) |
| 572 | goto oom; |
| 573 | |
| 574 | return CTRL_CMD_REPLY; |
| 575 | oom: |
| 576 | cmd->reply = "OOM"; |
| 577 | err: |
| 578 | return CTRL_CMD_ERROR; |
| 579 | } |
| 580 | |
Daniel Willmann | f7c74e5 | 2011-08-05 11:48:18 +0200 | [diff] [blame] | 581 | static int set_rate_ctr(struct ctrl_cmd *cmd, void *data) |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 582 | { |
| 583 | cmd->reply = "Can't set rate counter."; |
| 584 | |
| 585 | return CTRL_CMD_ERROR; |
| 586 | } |
| 587 | |
Daniel Willmann | f7c74e5 | 2011-08-05 11:48:18 +0200 | [diff] [blame] | 588 | 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] | 589 | { |
| 590 | return 0; |
| 591 | } |
| 592 | |
| 593 | /* counter */ |
| 594 | CTRL_CMD_DEFINE(counter, "counter *"); |
Daniel Willmann | f7c74e5 | 2011-08-05 11:48:18 +0200 | [diff] [blame] | 595 | static int get_counter(struct ctrl_cmd *cmd, void *data) |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 596 | { |
| 597 | char *ctr_name, *tmp, *dup, *saveptr; |
| 598 | struct osmo_counter *counter; |
| 599 | |
| 600 | cmd->reply = "OOM"; |
| 601 | dup = talloc_strdup(cmd, cmd->variable); |
| 602 | if (!dup) |
| 603 | goto err; |
| 604 | |
| 605 | |
| 606 | tmp = strstr(dup, "counter"); |
| 607 | if (!tmp) { |
| 608 | talloc_free(dup); |
| 609 | goto err; |
| 610 | } |
| 611 | |
| 612 | strtok_r(tmp, ".", &saveptr); |
| 613 | ctr_name = strtok_r(NULL, "\0", &saveptr); |
| 614 | |
| 615 | if (!ctr_name) |
| 616 | goto err; |
| 617 | |
| 618 | counter = osmo_counter_get_by_name(ctr_name); |
| 619 | if (!counter) { |
| 620 | cmd->reply = "Counter name not found."; |
| 621 | talloc_free(dup); |
| 622 | goto err; |
| 623 | } |
| 624 | |
| 625 | talloc_free(dup); |
| 626 | |
| 627 | cmd->reply = talloc_asprintf(cmd, "%lu", counter->value); |
| 628 | if (!cmd->reply) { |
| 629 | cmd->reply = "OOM"; |
| 630 | goto err; |
| 631 | } |
| 632 | |
| 633 | return CTRL_CMD_REPLY; |
| 634 | err: |
| 635 | return CTRL_CMD_ERROR; |
| 636 | } |
| 637 | |
Daniel Willmann | f7c74e5 | 2011-08-05 11:48:18 +0200 | [diff] [blame] | 638 | static int set_counter(struct ctrl_cmd *cmd, void *data) |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 639 | { |
| 640 | |
| 641 | cmd->reply = "Can't set counter."; |
| 642 | |
| 643 | return CTRL_CMD_ERROR; |
| 644 | } |
| 645 | |
Daniel Willmann | f7c74e5 | 2011-08-05 11:48:18 +0200 | [diff] [blame] | 646 | 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] | 647 | { |
| 648 | return 0; |
| 649 | } |
| 650 | |
Harald Welte | ae2fcb2 | 2014-08-21 15:20:00 +0200 | [diff] [blame] | 651 | struct ctrl_handle *ctrl_interface_setup(void *data, uint16_t port, |
| 652 | ctrl_cmd_lookup lookup) |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 653 | { |
Neels Hofmeyr | 4934309 | 2016-02-24 00:09:40 +0100 | [diff] [blame] | 654 | return ctrl_interface_setup_dynip(data, "127.0.0.1", port, lookup); |
| 655 | } |
| 656 | |
Max | 32ee5af | 2017-02-16 17:44:09 +0100 | [diff] [blame] | 657 | /*! \brief Setup CTRL interface on a given address |
| 658 | * \param[in] data Pointer which will be made available to each |
| 659 | set_..() get_..() verify_..() control command function |
| 660 | * \param[in] bind_addr Address on which CTRL socket shall listen |
| 661 | * \param[in] port Port on which CTRL socket shall listen |
| 662 | * \param[in] lookup Lookup function pointer, can be NULL |
| 663 | * \returns ctrl_handle pointer or NULL in case of errors |
| 664 | */ |
Neels Hofmeyr | 4934309 | 2016-02-24 00:09:40 +0100 | [diff] [blame] | 665 | struct ctrl_handle *ctrl_interface_setup_dynip(void *data, |
| 666 | const char *bind_addr, |
| 667 | uint16_t port, |
| 668 | ctrl_cmd_lookup lookup) |
| 669 | { |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 670 | int ret; |
| 671 | struct ctrl_handle *ctrl; |
| 672 | |
Harald Welte | c78e74e | 2014-08-21 14:34:32 +0200 | [diff] [blame] | 673 | ctrl = talloc_zero(data, struct ctrl_handle); |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 674 | if (!ctrl) |
Daniel Willmann | 782974b | 2011-07-22 17:55:42 +0200 | [diff] [blame] | 675 | return NULL; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 676 | |
Daniel Willmann | 0e0cf37 | 2011-05-06 16:37:25 +0200 | [diff] [blame] | 677 | INIT_LLIST_HEAD(&ctrl->ccon_list); |
| 678 | |
Harald Welte | c78e74e | 2014-08-21 14:34:32 +0200 | [diff] [blame] | 679 | ctrl->data = data; |
Harald Welte | 528134b | 2014-08-21 15:13:08 +0200 | [diff] [blame] | 680 | ctrl->lookup = lookup; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 681 | |
| 682 | ctrl_node_vec = vector_init(5); |
Daniel Willmann | 9f97316 | 2011-08-05 12:22:35 +0200 | [diff] [blame] | 683 | if (!ctrl_node_vec) |
| 684 | goto err; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 685 | |
| 686 | /* Listen for control connections */ |
Harald Welte | 1238cc6 | 2014-08-20 19:50:04 +0200 | [diff] [blame] | 687 | ctrl->listen_fd.cb = listen_fd_cb; |
| 688 | ctrl->listen_fd.data = ctrl; |
| 689 | ret = osmo_sock_init_ofd(&ctrl->listen_fd, AF_INET, SOCK_STREAM, IPPROTO_TCP, |
Neels Hofmeyr | 4934309 | 2016-02-24 00:09:40 +0100 | [diff] [blame] | 690 | bind_addr, port, OSMO_SOCK_F_BIND); |
Daniel Willmann | 9f97316 | 2011-08-05 12:22:35 +0200 | [diff] [blame] | 691 | if (ret < 0) |
| 692 | goto err_vec; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 693 | |
Daniel Willmann | 9f97316 | 2011-08-05 12:22:35 +0200 | [diff] [blame] | 694 | ret = ctrl_cmd_install(CTRL_NODE_ROOT, &cmd_rate_ctr); |
| 695 | if (ret) |
| 696 | goto err_vec; |
| 697 | ret = ctrl_cmd_install(CTRL_NODE_ROOT, &cmd_counter); |
| 698 | if (ret) |
| 699 | goto err_vec; |
Daniel Willmann | e9f5894 | 2011-04-21 11:43:55 +0200 | [diff] [blame] | 700 | |
Neels Hofmeyr | 38d232e | 2016-09-19 14:17:30 +0200 | [diff] [blame] | 701 | LOGP(DLCTRL, LOGL_NOTICE, "CTRL at %s %u\n", bind_addr, port); |
Daniel Willmann | 782974b | 2011-07-22 17:55:42 +0200 | [diff] [blame] | 702 | return ctrl; |
Daniel Willmann | 9f97316 | 2011-08-05 12:22:35 +0200 | [diff] [blame] | 703 | err_vec: |
| 704 | vector_free(ctrl_node_vec); |
| 705 | ctrl_node_vec = NULL; |
| 706 | err: |
Neels Hofmeyr | 38d232e | 2016-09-19 14:17:30 +0200 | [diff] [blame] | 707 | LOGP(DLCTRL, LOGL_ERROR, "Cannot bind CTRL at %s %u\n", |
| 708 | bind_addr, port); |
Daniel Willmann | 9f97316 | 2011-08-05 12:22:35 +0200 | [diff] [blame] | 709 | talloc_free(ctrl); |
| 710 | return NULL; |
Daniel Willmann | 1264cb4 | 2010-10-21 15:00:36 +0200 | [diff] [blame] | 711 | } |