Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 1 | /* RF Ctl handling socket */ |
| 2 | |
| 3 | /* (C) 2010 by Harald Welte <laforge@gnumonks.org> |
Holger Hans Peter Freyther | 362d10f | 2014-02-07 20:07:51 +0100 | [diff] [blame] | 4 | * (C) 2010-2014 by Holger Hans Peter Freyther <zecke@selfish.org> |
| 5 | * (C) 2010-2014 by On-Waves |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 6 | * All Rights Reserved |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 9 | * it under the terms of the GNU Affero General Public License as published by |
| 10 | * the Free Software Foundation; either version 3 of the License, or |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 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 |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 16 | * GNU Affero General Public License for more details. |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 17 | * |
Harald Welte | 9af6ddf | 2011-01-01 15:25:50 +0100 | [diff] [blame] | 18 | * You should have received a copy of the GNU Affero General Public License |
| 19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include <openbsc/osmo_bsc_rf.h> |
| 24 | #include <openbsc/debug.h> |
| 25 | #include <openbsc/gsm_data.h> |
Holger Hans Peter Freyther | 12b917d | 2010-07-29 02:27:27 +0800 | [diff] [blame] | 26 | #include <openbsc/signal.h> |
Holger Hans Peter Freyther | 70c232f | 2010-11-22 19:09:38 +0100 | [diff] [blame] | 27 | #include <openbsc/osmo_msc_data.h> |
Holger Hans Peter Freyther | 4b41746 | 2011-04-07 23:10:10 +0200 | [diff] [blame] | 28 | #include <openbsc/ipaccess.h> |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 29 | |
Pablo Neira Ayuso | 136f453 | 2011-03-22 16:47:59 +0100 | [diff] [blame] | 30 | #include <osmocom/core/talloc.h> |
Daniel Willmann | 65924a5 | 2011-08-19 19:38:31 +0200 | [diff] [blame] | 31 | #include <osmocom/core/utils.h> |
Harald Welte | d36ff76 | 2011-03-23 18:26:56 +0100 | [diff] [blame] | 32 | #include <osmocom/gsm/protocol/gsm_12_21.h> |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 33 | |
| 34 | #include <sys/socket.h> |
| 35 | #include <sys/un.h> |
| 36 | |
| 37 | #include <errno.h> |
| 38 | #include <unistd.h> |
| 39 | |
| 40 | #define RF_CMD_QUERY '?' |
| 41 | #define RF_CMD_OFF '0' |
| 42 | #define RF_CMD_ON '1' |
Holger Hans Peter Freyther | cf6f71a | 2010-11-22 19:32:13 +0100 | [diff] [blame] | 43 | #define RF_CMD_D_OFF 'd' |
| 44 | #define RF_CMD_ON_G 'g' |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 45 | |
Daniel Willmann | 65924a5 | 2011-08-19 19:38:31 +0200 | [diff] [blame] | 46 | static const struct value_string opstate_names[] = { |
| 47 | { OSMO_BSC_RF_OPSTATE_INOPERATIONAL, "inoperational" }, |
| 48 | { OSMO_BSC_RF_OPSTATE_OPERATIONAL, "operational" }, |
| 49 | { 0, NULL } |
| 50 | }; |
| 51 | |
| 52 | static const struct value_string adminstate_names[] = { |
| 53 | { OSMO_BSC_RF_ADMINSTATE_UNLOCKED, "unlocked" }, |
| 54 | { OSMO_BSC_RF_ADMINSTATE_LOCKED, "locked" }, |
| 55 | { 0, NULL } |
| 56 | }; |
| 57 | |
| 58 | static const struct value_string policy_names[] = { |
| 59 | { OSMO_BSC_RF_POLICY_OFF, "off" }, |
| 60 | { OSMO_BSC_RF_POLICY_ON, "on" }, |
| 61 | { OSMO_BSC_RF_POLICY_GRACE, "grace" }, |
| 62 | { OSMO_BSC_RF_POLICY_UNKNOWN, "unknown" }, |
| 63 | { 0, NULL } |
| 64 | }; |
| 65 | |
| 66 | const char *osmo_bsc_rf_get_opstate_name(enum osmo_bsc_rf_opstate opstate) |
| 67 | { |
| 68 | return get_value_string(opstate_names, opstate); |
| 69 | } |
| 70 | |
| 71 | const char *osmo_bsc_rf_get_adminstate_name(enum osmo_bsc_rf_adminstate adminstate) |
| 72 | { |
| 73 | return get_value_string(adminstate_names, adminstate); |
| 74 | } |
| 75 | |
| 76 | const char *osmo_bsc_rf_get_policy_name(enum osmo_bsc_rf_policy policy) |
| 77 | { |
| 78 | return get_value_string(policy_names, policy); |
| 79 | } |
| 80 | |
| 81 | enum osmo_bsc_rf_opstate osmo_bsc_rf_get_opstate_by_bts(struct gsm_bts *bts) |
| 82 | { |
| 83 | struct gsm_bts_trx *trx; |
| 84 | |
| 85 | llist_for_each_entry(trx, &bts->trx_list, list) { |
| 86 | if (trx->mo.nm_state.operational == NM_OPSTATE_ENABLED) |
| 87 | return OSMO_BSC_RF_OPSTATE_OPERATIONAL; |
| 88 | } |
| 89 | |
| 90 | /* No trx were active, so this bts is disabled */ |
| 91 | return OSMO_BSC_RF_OPSTATE_INOPERATIONAL; |
| 92 | } |
| 93 | |
| 94 | enum osmo_bsc_rf_adminstate osmo_bsc_rf_get_adminstate_by_bts(struct gsm_bts *bts) |
| 95 | { |
| 96 | struct gsm_bts_trx *trx; |
| 97 | |
| 98 | llist_for_each_entry(trx, &bts->trx_list, list) { |
| 99 | if (trx->mo.nm_state.administrative == NM_STATE_UNLOCKED) |
| 100 | return OSMO_BSC_RF_ADMINSTATE_UNLOCKED; |
| 101 | } |
| 102 | |
| 103 | /* All trx administrative states were locked */ |
| 104 | return OSMO_BSC_RF_ADMINSTATE_LOCKED; |
| 105 | } |
| 106 | |
| 107 | enum osmo_bsc_rf_policy osmo_bsc_rf_get_policy_by_bts(struct gsm_bts *bts) |
| 108 | { |
| 109 | struct osmo_bsc_data *bsc_data = bts->network->bsc_data; |
| 110 | |
Holger Hans Peter Freyther | a9fae1a | 2014-02-08 12:12:03 +0100 | [diff] [blame] | 111 | if (!bsc_data) |
Daniel Willmann | 65924a5 | 2011-08-19 19:38:31 +0200 | [diff] [blame] | 112 | return OSMO_BSC_RF_POLICY_UNKNOWN; |
| 113 | |
| 114 | switch (bsc_data->rf_ctrl->policy) { |
| 115 | case S_RF_ON: |
| 116 | return OSMO_BSC_RF_POLICY_ON; |
| 117 | case S_RF_OFF: |
| 118 | return OSMO_BSC_RF_POLICY_OFF; |
| 119 | case S_RF_GRACE: |
| 120 | return OSMO_BSC_RF_POLICY_GRACE; |
| 121 | default: |
| 122 | return OSMO_BSC_RF_POLICY_UNKNOWN; |
| 123 | } |
| 124 | } |
| 125 | |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 126 | static int lock_each_trx(struct gsm_network *net, int lock) |
| 127 | { |
| 128 | struct gsm_bts *bts; |
| 129 | |
| 130 | llist_for_each_entry(bts, &net->bts_list, list) { |
| 131 | struct gsm_bts_trx *trx; |
Holger Hans Peter Freyther | e30d40d | 2012-07-20 10:27:31 +0200 | [diff] [blame] | 132 | |
| 133 | /* Exclude the BTS from the global lock */ |
| 134 | if (bts->excl_from_rf_lock) { |
| 135 | LOGP(DLINP, LOGL_DEBUG, |
| 136 | "Excluding BTS(%d) from trx lock.\n", bts->nr); |
| 137 | continue; |
| 138 | } |
| 139 | |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 140 | llist_for_each_entry(trx, &bts->trx_list, list) { |
| 141 | gsm_trx_lock_rf(trx, lock); |
| 142 | } |
| 143 | } |
| 144 | |
| 145 | return 0; |
| 146 | } |
| 147 | |
Holger Hans Peter Freyther | cf6f71a | 2010-11-22 19:32:13 +0100 | [diff] [blame] | 148 | static void send_resp(struct osmo_bsc_rf_conn *conn, char send) |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 149 | { |
| 150 | struct msgb *msg; |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 151 | |
| 152 | msg = msgb_alloc(10, "RF Query"); |
| 153 | if (!msg) { |
Pablo Neira Ayuso | ed5cacb | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 154 | LOGP(DLINP, LOGL_ERROR, "Failed to allocate response msg.\n"); |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 155 | return; |
| 156 | } |
| 157 | |
| 158 | msg->l2h = msgb_put(msg, 1); |
| 159 | msg->l2h[0] = send; |
| 160 | |
Pablo Neira Ayuso | e1273b1 | 2011-05-06 12:09:47 +0200 | [diff] [blame] | 161 | if (osmo_wqueue_enqueue(&conn->queue, msg) != 0) { |
Pablo Neira Ayuso | ed5cacb | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 162 | LOGP(DLINP, LOGL_ERROR, "Failed to enqueue the answer.\n"); |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 163 | msgb_free(msg); |
| 164 | return; |
| 165 | } |
| 166 | |
| 167 | return; |
| 168 | } |
| 169 | |
Holger Hans Peter Freyther | cf6f71a | 2010-11-22 19:32:13 +0100 | [diff] [blame] | 170 | |
| 171 | /* |
| 172 | * Send a |
| 173 | * 'g' when we are in grace mode |
| 174 | * '1' when one TRX is online, |
| 175 | * '0' otherwise |
| 176 | */ |
| 177 | static void handle_query(struct osmo_bsc_rf_conn *conn) |
| 178 | { |
| 179 | struct gsm_bts *bts; |
| 180 | char send = RF_CMD_OFF; |
| 181 | |
| 182 | if (conn->rf->policy == S_RF_GRACE) |
| 183 | return send_resp(conn, RF_CMD_ON_G); |
| 184 | |
| 185 | llist_for_each_entry(bts, &conn->rf->gsm_network->bts_list, list) { |
| 186 | struct gsm_bts_trx *trx; |
Holger Hans Peter Freyther | e30d40d | 2012-07-20 10:27:31 +0200 | [diff] [blame] | 187 | |
| 188 | /* Exclude the BTS from the global lock */ |
| 189 | if (bts->excl_from_rf_lock) { |
| 190 | LOGP(DLINP, LOGL_DEBUG, |
| 191 | "Excluding BTS(%d) from query.\n", bts->nr); |
| 192 | continue; |
| 193 | } |
Holger Hans Peter Freyther | cf6f71a | 2010-11-22 19:32:13 +0100 | [diff] [blame] | 194 | llist_for_each_entry(trx, &bts->trx_list, list) { |
Harald Welte | 1a07e21 | 2011-06-25 21:10:23 +0200 | [diff] [blame] | 195 | if (trx->mo.nm_state.availability == NM_AVSTATE_OK && |
Daniel Willmann | a90eb00 | 2011-08-19 19:20:32 +0200 | [diff] [blame] | 196 | trx->mo.nm_state.operational != NM_OPSTATE_DISABLED) { |
Holger Hans Peter Freyther | cf6f71a | 2010-11-22 19:32:13 +0100 | [diff] [blame] | 197 | send = RF_CMD_ON; |
| 198 | break; |
| 199 | } |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | send_resp(conn, send); |
| 204 | } |
| 205 | |
Holger Hans Peter Freyther | 00c805f | 2011-02-24 14:40:11 +0100 | [diff] [blame] | 206 | static void rf_check_cb(void *_data) |
| 207 | { |
| 208 | struct gsm_bts *bts; |
| 209 | struct osmo_bsc_rf *rf = _data; |
| 210 | |
| 211 | llist_for_each_entry(bts, &rf->gsm_network->bts_list, list) { |
| 212 | struct gsm_bts_trx *trx; |
| 213 | |
| 214 | /* don't bother to check a booting or missing BTS */ |
| 215 | if (!bts->oml_link || !is_ipaccess_bts(bts)) |
| 216 | continue; |
| 217 | |
Holger Hans Peter Freyther | e30d40d | 2012-07-20 10:27:31 +0200 | [diff] [blame] | 218 | /* Exclude the BTS from the global lock */ |
| 219 | if (bts->excl_from_rf_lock) { |
| 220 | LOGP(DLINP, LOGL_DEBUG, |
| 221 | "Excluding BTS(%d) from query.\n", bts->nr); |
| 222 | continue; |
| 223 | } |
| 224 | |
Holger Hans Peter Freyther | 00c805f | 2011-02-24 14:40:11 +0100 | [diff] [blame] | 225 | llist_for_each_entry(trx, &bts->trx_list, list) { |
Harald Welte | 1a07e21 | 2011-06-25 21:10:23 +0200 | [diff] [blame] | 226 | if (trx->mo.nm_state.availability != NM_AVSTATE_OK || |
| 227 | trx->mo.nm_state.operational != NM_OPSTATE_ENABLED || |
| 228 | trx->mo.nm_state.administrative != NM_STATE_UNLOCKED) { |
Holger Hans Peter Freyther | 00c805f | 2011-02-24 14:40:11 +0100 | [diff] [blame] | 229 | LOGP(DNM, LOGL_ERROR, "RF activation failed. Starting again.\n"); |
| 230 | ipaccess_drop_oml(bts); |
| 231 | break; |
| 232 | } |
| 233 | } |
| 234 | } |
| 235 | } |
| 236 | |
Holger Hans Peter Freyther | 70c232f | 2010-11-22 19:09:38 +0100 | [diff] [blame] | 237 | static void send_signal(struct osmo_bsc_rf *rf, int val) |
Holger Hans Peter Freyther | 12b917d | 2010-07-29 02:27:27 +0800 | [diff] [blame] | 238 | { |
| 239 | struct rf_signal_data sig; |
Holger Hans Peter Freyther | 70c232f | 2010-11-22 19:09:38 +0100 | [diff] [blame] | 240 | sig.net = rf->gsm_network; |
Holger Hans Peter Freyther | 12b917d | 2010-07-29 02:27:27 +0800 | [diff] [blame] | 241 | |
Holger Hans Peter Freyther | 70c232f | 2010-11-22 19:09:38 +0100 | [diff] [blame] | 242 | rf->policy = val; |
Pablo Neira Ayuso | bbc5b99 | 2011-05-06 12:12:31 +0200 | [diff] [blame] | 243 | osmo_signal_dispatch(SS_RF, val, &sig); |
Holger Hans Peter Freyther | 12b917d | 2010-07-29 02:27:27 +0800 | [diff] [blame] | 244 | } |
| 245 | |
Holger Hans Peter Freyther | 70c232f | 2010-11-22 19:09:38 +0100 | [diff] [blame] | 246 | static int switch_rf_off(struct osmo_bsc_rf *rf) |
| 247 | { |
| 248 | lock_each_trx(rf->gsm_network, 1); |
| 249 | send_signal(rf, S_RF_OFF); |
| 250 | |
| 251 | return 0; |
| 252 | } |
| 253 | |
| 254 | static void grace_timeout(void *_data) |
| 255 | { |
| 256 | struct osmo_bsc_rf *rf = (struct osmo_bsc_rf *) _data; |
| 257 | |
Holger Hans Peter Freyther | e30d40d | 2012-07-20 10:27:31 +0200 | [diff] [blame] | 258 | LOGP(DLINP, LOGL_NOTICE, "Grace timeout. Going to disable all BTS/TRX.\n"); |
Holger Hans Peter Freyther | 70c232f | 2010-11-22 19:09:38 +0100 | [diff] [blame] | 259 | switch_rf_off(rf); |
| 260 | } |
| 261 | |
Holger Hans Peter Freyther | 1176245 | 2011-02-14 23:41:42 +0100 | [diff] [blame] | 262 | static int enter_grace(struct osmo_bsc_rf *rf) |
Holger Hans Peter Freyther | 70c232f | 2010-11-22 19:09:38 +0100 | [diff] [blame] | 263 | { |
Holger Hans Peter Freyther | baa1a2d | 2011-08-25 09:15:40 +0200 | [diff] [blame] | 264 | if (osmo_timer_pending(&rf->grace_timeout)) { |
| 265 | LOGP(DLINP, LOGL_NOTICE, "RF Grace timer is pending. Not restarting.\n"); |
| 266 | return 0; |
| 267 | } |
| 268 | |
Holger Hans Peter Freyther | 70c232f | 2010-11-22 19:09:38 +0100 | [diff] [blame] | 269 | rf->grace_timeout.cb = grace_timeout; |
| 270 | rf->grace_timeout.data = rf; |
Holger Hans Peter Freyther | 8ec4952 | 2011-08-15 15:53:00 +0200 | [diff] [blame] | 271 | osmo_timer_schedule(&rf->grace_timeout, rf->gsm_network->bsc_data->mid_call_timeout, 0); |
Pablo Neira Ayuso | ed5cacb | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 272 | LOGP(DLINP, LOGL_NOTICE, "Going to switch RF off in %d seconds.\n", |
Holger Hans Peter Freyther | 8ec4952 | 2011-08-15 15:53:00 +0200 | [diff] [blame] | 273 | rf->gsm_network->bsc_data->mid_call_timeout); |
Holger Hans Peter Freyther | 70c232f | 2010-11-22 19:09:38 +0100 | [diff] [blame] | 274 | |
Holger Hans Peter Freyther | 1176245 | 2011-02-14 23:41:42 +0100 | [diff] [blame] | 275 | send_signal(rf, S_RF_GRACE); |
Holger Hans Peter Freyther | 70c232f | 2010-11-22 19:09:38 +0100 | [diff] [blame] | 276 | return 0; |
| 277 | } |
| 278 | |
Holger Hans Peter Freyther | 1176245 | 2011-02-14 23:41:42 +0100 | [diff] [blame] | 279 | static void rf_delay_cmd_cb(void *data) |
| 280 | { |
| 281 | struct osmo_bsc_rf *rf = data; |
| 282 | |
| 283 | switch (rf->last_request) { |
| 284 | case RF_CMD_D_OFF: |
| 285 | rf->last_state_command = "RF Direct Off"; |
Pablo Neira Ayuso | bf540cb | 2011-05-06 12:11:06 +0200 | [diff] [blame] | 286 | osmo_timer_del(&rf->rf_check); |
| 287 | osmo_timer_del(&rf->grace_timeout); |
Holger Hans Peter Freyther | 1176245 | 2011-02-14 23:41:42 +0100 | [diff] [blame] | 288 | switch_rf_off(rf); |
| 289 | break; |
| 290 | case RF_CMD_ON: |
| 291 | rf->last_state_command = "RF Direct On"; |
Pablo Neira Ayuso | bf540cb | 2011-05-06 12:11:06 +0200 | [diff] [blame] | 292 | osmo_timer_del(&rf->grace_timeout); |
Holger Hans Peter Freyther | 1176245 | 2011-02-14 23:41:42 +0100 | [diff] [blame] | 293 | lock_each_trx(rf->gsm_network, 0); |
| 294 | send_signal(rf, S_RF_ON); |
Pablo Neira Ayuso | bf540cb | 2011-05-06 12:11:06 +0200 | [diff] [blame] | 295 | osmo_timer_schedule(&rf->rf_check, 3, 0); |
Holger Hans Peter Freyther | 1176245 | 2011-02-14 23:41:42 +0100 | [diff] [blame] | 296 | break; |
| 297 | case RF_CMD_OFF: |
| 298 | rf->last_state_command = "RF Scheduled Off"; |
Pablo Neira Ayuso | bf540cb | 2011-05-06 12:11:06 +0200 | [diff] [blame] | 299 | osmo_timer_del(&rf->rf_check); |
Holger Hans Peter Freyther | 1176245 | 2011-02-14 23:41:42 +0100 | [diff] [blame] | 300 | enter_grace(rf); |
| 301 | break; |
| 302 | } |
| 303 | } |
| 304 | |
Pablo Neira Ayuso | 4db9299 | 2011-05-06 12:11:23 +0200 | [diff] [blame] | 305 | static int rf_read_cmd(struct osmo_fd *fd) |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 306 | { |
| 307 | struct osmo_bsc_rf_conn *conn = fd->data; |
| 308 | char buf[1]; |
| 309 | int rc; |
| 310 | |
| 311 | rc = read(fd->fd, buf, sizeof(buf)); |
| 312 | if (rc != sizeof(buf)) { |
Pablo Neira Ayuso | ed5cacb | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 313 | LOGP(DLINP, LOGL_ERROR, "Short read %d/%s\n", errno, strerror(errno)); |
Pablo Neira Ayuso | 4db9299 | 2011-05-06 12:11:23 +0200 | [diff] [blame] | 314 | osmo_fd_unregister(fd); |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 315 | close(fd->fd); |
Pablo Neira Ayuso | e1273b1 | 2011-05-06 12:09:47 +0200 | [diff] [blame] | 316 | osmo_wqueue_clear(&conn->queue); |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 317 | talloc_free(conn); |
| 318 | return -1; |
| 319 | } |
| 320 | |
| 321 | switch (buf[0]) { |
| 322 | case RF_CMD_QUERY: |
| 323 | handle_query(conn); |
| 324 | break; |
Holger Hans Peter Freyther | cf6f71a | 2010-11-22 19:32:13 +0100 | [diff] [blame] | 325 | case RF_CMD_D_OFF: |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 326 | case RF_CMD_ON: |
Holger Hans Peter Freyther | cf6f71a | 2010-11-22 19:32:13 +0100 | [diff] [blame] | 327 | case RF_CMD_OFF: |
Holger Hans Peter Freyther | 7b6ea56 | 2011-08-16 14:29:53 +0200 | [diff] [blame] | 328 | osmo_bsc_rf_schedule_lock(conn->rf, buf[0]); |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 329 | break; |
| 330 | default: |
Holger Hans Peter Freyther | 37ac420 | 2011-02-24 14:19:14 +0100 | [diff] [blame] | 331 | conn->rf->last_state_command = "Unknown command"; |
Pablo Neira Ayuso | ed5cacb | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 332 | LOGP(DLINP, LOGL_ERROR, "Unknown command %d\n", buf[0]); |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 333 | break; |
| 334 | } |
| 335 | |
| 336 | return 0; |
| 337 | } |
| 338 | |
Pablo Neira Ayuso | 4db9299 | 2011-05-06 12:11:23 +0200 | [diff] [blame] | 339 | static int rf_write_cmd(struct osmo_fd *fd, struct msgb *msg) |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 340 | { |
| 341 | int rc; |
| 342 | |
| 343 | rc = write(fd->fd, msg->data, msg->len); |
| 344 | if (rc != msg->len) { |
Pablo Neira Ayuso | ed5cacb | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 345 | LOGP(DLINP, LOGL_ERROR, "Short write %d/%s\n", errno, strerror(errno)); |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 346 | return -1; |
| 347 | } |
| 348 | |
| 349 | return 0; |
| 350 | } |
| 351 | |
Holger Hans Peter Freyther | 5e3bbba | 2011-06-04 09:32:35 +0200 | [diff] [blame] | 352 | static int rf_ctrl_accept(struct osmo_fd *bfd, unsigned int what) |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 353 | { |
| 354 | struct osmo_bsc_rf_conn *conn; |
| 355 | struct osmo_bsc_rf *rf = bfd->data; |
| 356 | struct sockaddr_un addr; |
| 357 | socklen_t len = sizeof(addr); |
| 358 | int fd; |
| 359 | |
| 360 | fd = accept(bfd->fd, (struct sockaddr *) &addr, &len); |
| 361 | if (fd < 0) { |
Pablo Neira Ayuso | ed5cacb | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 362 | LOGP(DLINP, LOGL_ERROR, "Failed to accept. errno: %d/%s\n", |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 363 | errno, strerror(errno)); |
| 364 | return -1; |
| 365 | } |
| 366 | |
| 367 | conn = talloc_zero(rf, struct osmo_bsc_rf_conn); |
| 368 | if (!conn) { |
Pablo Neira Ayuso | ed5cacb | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 369 | LOGP(DLINP, LOGL_ERROR, "Failed to allocate mem.\n"); |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 370 | close(fd); |
| 371 | return -1; |
| 372 | } |
| 373 | |
Pablo Neira Ayuso | e1273b1 | 2011-05-06 12:09:47 +0200 | [diff] [blame] | 374 | osmo_wqueue_init(&conn->queue, 10); |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 375 | conn->queue.bfd.data = conn; |
| 376 | conn->queue.bfd.fd = fd; |
| 377 | conn->queue.bfd.when = BSC_FD_READ | BSC_FD_WRITE; |
| 378 | conn->queue.read_cb = rf_read_cmd; |
| 379 | conn->queue.write_cb = rf_write_cmd; |
Holger Hans Peter Freyther | 7a1591b | 2010-09-16 00:10:18 +0800 | [diff] [blame] | 380 | conn->rf = rf; |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 381 | |
Pablo Neira Ayuso | 4db9299 | 2011-05-06 12:11:23 +0200 | [diff] [blame] | 382 | if (osmo_fd_register(&conn->queue.bfd) != 0) { |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 383 | close(fd); |
| 384 | talloc_free(conn); |
| 385 | return -1; |
| 386 | } |
| 387 | |
| 388 | return 0; |
| 389 | } |
| 390 | |
Holger Hans Peter Freyther | 2a89607 | 2011-08-16 19:47:39 +0200 | [diff] [blame] | 391 | static void rf_auto_off_cb(void *_timer) |
| 392 | { |
| 393 | struct osmo_bsc_rf *rf = _timer; |
| 394 | |
| 395 | LOGP(DLINP, LOGL_NOTICE, |
| 396 | "Going to switch off RF due lack of a MSC connection.\n"); |
| 397 | osmo_bsc_rf_schedule_lock(rf, RF_CMD_D_OFF); |
| 398 | } |
| 399 | |
| 400 | static int msc_signal_handler(unsigned int subsys, unsigned int signal, |
| 401 | void *handler_data, void *signal_data) |
| 402 | { |
| 403 | struct gsm_network *net; |
| 404 | struct msc_signal_data *msc; |
| 405 | struct osmo_bsc_rf *rf; |
| 406 | |
| 407 | /* check if we want to handle this signal */ |
| 408 | if (subsys != SS_MSC) |
| 409 | return 0; |
| 410 | |
| 411 | net = handler_data; |
| 412 | msc = signal_data; |
| 413 | |
| 414 | /* check if we have the needed information */ |
Holger Hans Peter Freyther | a9fae1a | 2014-02-08 12:12:03 +0100 | [diff] [blame] | 415 | if (!net->bsc_data) |
Holger Hans Peter Freyther | 2a89607 | 2011-08-16 19:47:39 +0200 | [diff] [blame] | 416 | return 0; |
| 417 | if (msc->data->type != MSC_CON_TYPE_NORMAL) |
| 418 | return 0; |
| 419 | |
| 420 | rf = net->bsc_data->rf_ctrl; |
| 421 | switch (signal) { |
| 422 | case S_MSC_LOST: |
| 423 | if (net->bsc_data->auto_off_timeout < 0) |
| 424 | return 0; |
| 425 | if (osmo_timer_pending(&rf->auto_off_timer)) |
| 426 | return 0; |
| 427 | osmo_timer_schedule(&rf->auto_off_timer, |
| 428 | net->bsc_data->auto_off_timeout, 0); |
| 429 | break; |
| 430 | case S_MSC_CONNECTED: |
| 431 | osmo_timer_del(&rf->auto_off_timer); |
| 432 | break; |
| 433 | } |
| 434 | |
| 435 | return 0; |
| 436 | } |
| 437 | |
Holger Hans Peter Freyther | 362d10f | 2014-02-07 20:07:51 +0100 | [diff] [blame] | 438 | static int rf_create_socket(struct osmo_bsc_rf *rf, const char *path) |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 439 | { |
| 440 | unsigned int namelen; |
| 441 | struct sockaddr_un local; |
Pablo Neira Ayuso | 4db9299 | 2011-05-06 12:11:23 +0200 | [diff] [blame] | 442 | struct osmo_fd *bfd; |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 443 | int rc; |
| 444 | |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 445 | bfd = &rf->listen; |
| 446 | bfd->fd = socket(AF_UNIX, SOCK_STREAM, 0); |
| 447 | if (bfd->fd < 0) { |
Pablo Neira Ayuso | ed5cacb | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 448 | LOGP(DLINP, LOGL_ERROR, "Can not create socket. %d/%s\n", |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 449 | errno, strerror(errno)); |
Holger Hans Peter Freyther | 362d10f | 2014-02-07 20:07:51 +0100 | [diff] [blame] | 450 | return -1; |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 451 | } |
| 452 | |
| 453 | local.sun_family = AF_UNIX; |
| 454 | strncpy(local.sun_path, path, sizeof(local.sun_path)); |
| 455 | local.sun_path[sizeof(local.sun_path) - 1] = '\0'; |
| 456 | unlink(local.sun_path); |
| 457 | |
| 458 | /* we use the same magic that X11 uses in Xtranssock.c for |
| 459 | * calculating the proper length of the sockaddr */ |
| 460 | #if defined(BSD44SOCKETS) || defined(__UNIXWARE__) |
| 461 | local.sun_len = strlen(local.sun_path); |
| 462 | #endif |
| 463 | #if defined(BSD44SOCKETS) || defined(SUN_LEN) |
| 464 | namelen = SUN_LEN(&local); |
| 465 | #else |
| 466 | namelen = strlen(local.sun_path) + |
| 467 | offsetof(struct sockaddr_un, sun_path); |
| 468 | #endif |
| 469 | |
| 470 | rc = bind(bfd->fd, (struct sockaddr *) &local, namelen); |
| 471 | if (rc != 0) { |
Pablo Neira Ayuso | ed5cacb | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 472 | LOGP(DLINP, LOGL_ERROR, "Failed to bind '%s' errno: %d/%s\n", |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 473 | local.sun_path, errno, strerror(errno)); |
| 474 | close(bfd->fd); |
Holger Hans Peter Freyther | 362d10f | 2014-02-07 20:07:51 +0100 | [diff] [blame] | 475 | return -1; |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 476 | } |
| 477 | |
| 478 | if (listen(bfd->fd, 0) != 0) { |
Pablo Neira Ayuso | ed5cacb | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 479 | LOGP(DLINP, LOGL_ERROR, "Failed to listen: %d/%s\n", errno, strerror(errno)); |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 480 | close(bfd->fd); |
Holger Hans Peter Freyther | 362d10f | 2014-02-07 20:07:51 +0100 | [diff] [blame] | 481 | return -1; |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 482 | } |
| 483 | |
| 484 | bfd->when = BSC_FD_READ; |
Holger Hans Peter Freyther | 5e3bbba | 2011-06-04 09:32:35 +0200 | [diff] [blame] | 485 | bfd->cb = rf_ctrl_accept; |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 486 | bfd->data = rf; |
| 487 | |
Pablo Neira Ayuso | 4db9299 | 2011-05-06 12:11:23 +0200 | [diff] [blame] | 488 | if (osmo_fd_register(bfd) != 0) { |
Pablo Neira Ayuso | ed5cacb | 2011-08-17 22:44:07 +0200 | [diff] [blame] | 489 | LOGP(DLINP, LOGL_ERROR, "Failed to register bfd.\n"); |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 490 | close(bfd->fd); |
Holger Hans Peter Freyther | 362d10f | 2014-02-07 20:07:51 +0100 | [diff] [blame] | 491 | return -1; |
| 492 | } |
| 493 | |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | struct osmo_bsc_rf *osmo_bsc_rf_create(const char *path, struct gsm_network *net) |
| 498 | { |
| 499 | struct osmo_bsc_rf *rf; |
| 500 | |
| 501 | rf = talloc_zero(NULL, struct osmo_bsc_rf); |
| 502 | if (!rf) { |
| 503 | LOGP(DLINP, LOGL_ERROR, "Failed to create osmo_bsc_rf.\n"); |
| 504 | return NULL; |
| 505 | } |
| 506 | |
| 507 | if (path && rf_create_socket(rf, path) != 0) { |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 508 | talloc_free(rf); |
| 509 | return NULL; |
| 510 | } |
| 511 | |
| 512 | rf->gsm_network = net; |
Holger Hans Peter Freyther | 7a1591b | 2010-09-16 00:10:18 +0800 | [diff] [blame] | 513 | rf->policy = S_RF_ON; |
Holger Hans Peter Freyther | 37ac420 | 2011-02-24 14:19:14 +0100 | [diff] [blame] | 514 | rf->last_state_command = ""; |
Jacob Erlbeck | 779a728 | 2013-09-11 10:46:57 +0200 | [diff] [blame] | 515 | rf->last_rf_lock_ctrl_command = talloc_strdup(rf, ""); |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 516 | |
Holger Hans Peter Freyther | 00c805f | 2011-02-24 14:40:11 +0100 | [diff] [blame] | 517 | /* check the rf state */ |
| 518 | rf->rf_check.data = rf; |
| 519 | rf->rf_check.cb = rf_check_cb; |
| 520 | |
Holger Hans Peter Freyther | 1176245 | 2011-02-14 23:41:42 +0100 | [diff] [blame] | 521 | /* delay cmd handling */ |
| 522 | rf->delay_cmd.data = rf; |
| 523 | rf->delay_cmd.cb = rf_delay_cmd_cb; |
| 524 | |
Holger Hans Peter Freyther | 2a89607 | 2011-08-16 19:47:39 +0200 | [diff] [blame] | 525 | rf->auto_off_timer.data = rf; |
| 526 | rf->auto_off_timer.cb = rf_auto_off_cb; |
| 527 | |
| 528 | /* listen to RF signals */ |
| 529 | osmo_signal_register_handler(SS_MSC, msc_signal_handler, net); |
| 530 | |
Holger Hans Peter Freyther | 2f4dbeb | 2010-06-30 14:29:53 +0800 | [diff] [blame] | 531 | return rf; |
| 532 | } |
| 533 | |
Holger Hans Peter Freyther | 7b6ea56 | 2011-08-16 14:29:53 +0200 | [diff] [blame] | 534 | void osmo_bsc_rf_schedule_lock(struct osmo_bsc_rf *rf, char cmd) |
| 535 | { |
| 536 | rf->last_request = cmd; |
| 537 | if (!osmo_timer_pending(&rf->delay_cmd)) |
| 538 | osmo_timer_schedule(&rf->delay_cmd, 1, 0); |
| 539 | } |