Max | 372868b | 2017-03-02 12:12:00 +0100 | [diff] [blame] | 1 | /* OsmoHLR Control Interface implementation */ |
| 2 | |
| 3 | /* (C) 2017 sysmocom s.f.m.c. GmbH <info@sysmocom.de> |
| 4 | * All Rights Reserved |
| 5 | * |
| 6 | * Author: Max Suraev <msuraev@sysmocom.de> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 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 |
| 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 Affero General Public License for more details. |
| 17 | * |
| 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/>. |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include <stdbool.h> |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 24 | #include <errno.h> |
| 25 | #include <inttypes.h> |
| 26 | #include <string.h> |
Max | 372868b | 2017-03-02 12:12:00 +0100 | [diff] [blame] | 27 | |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 28 | #include <osmocom/gsm/gsm23003.h> |
Max | 372868b | 2017-03-02 12:12:00 +0100 | [diff] [blame] | 29 | #include <osmocom/ctrl/ports.h> |
| 30 | |
Neels Hofmeyr | 2f75803 | 2019-11-20 00:37:07 +0100 | [diff] [blame] | 31 | #include <osmocom/hlr/hlr.h> |
| 32 | #include <osmocom/hlr/ctrl.h> |
| 33 | #include <osmocom/hlr/db.h> |
Max | 372868b | 2017-03-02 12:12:00 +0100 | [diff] [blame] | 34 | |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 35 | #define SEL_BY "by-" |
| 36 | #define SEL_BY_IMSI SEL_BY "imsi-" |
| 37 | #define SEL_BY_MSISDN SEL_BY "msisdn-" |
| 38 | #define SEL_BY_ID SEL_BY "id-" |
| 39 | |
| 40 | #define hexdump_buf(buf) osmo_hexdump_nospc((void*)buf, sizeof(buf)) |
| 41 | |
| 42 | static bool startswith(const char *str, const char *start) |
| 43 | { |
| 44 | return strncmp(str, start, strlen(start)) == 0; |
| 45 | } |
| 46 | |
| 47 | static int _get_subscriber(struct db_context *dbc, |
| 48 | const char *by_selector, |
| 49 | struct hlr_subscriber *subscr) |
| 50 | { |
| 51 | const char *val; |
| 52 | if (startswith(by_selector, SEL_BY_IMSI)) { |
| 53 | val = by_selector + strlen(SEL_BY_IMSI); |
| 54 | if (!osmo_imsi_str_valid(val)) |
| 55 | return -EINVAL; |
| 56 | return db_subscr_get_by_imsi(dbc, val, subscr); |
| 57 | } |
| 58 | if (startswith(by_selector, SEL_BY_MSISDN)) { |
| 59 | val = by_selector + strlen(SEL_BY_MSISDN); |
| 60 | if (!osmo_msisdn_str_valid(val)) |
| 61 | return -EINVAL; |
| 62 | return db_subscr_get_by_msisdn(dbc, val, subscr); |
| 63 | } |
| 64 | if (startswith(by_selector, SEL_BY_ID)) { |
| 65 | int64_t id; |
| 66 | char *endptr; |
| 67 | val = by_selector + strlen(SEL_BY_ID); |
| 68 | if (*val == '+') |
| 69 | return -EINVAL; |
| 70 | errno = 0; |
| 71 | id = strtoll(val, &endptr, 10); |
| 72 | if (errno || *endptr) |
| 73 | return -EINVAL; |
| 74 | return db_subscr_get_by_id(dbc, id, subscr); |
| 75 | } |
| 76 | return -ENOTSUP; |
| 77 | } |
| 78 | |
| 79 | static bool get_subscriber(struct db_context *dbc, |
| 80 | const char *by_selector, |
| 81 | struct hlr_subscriber *subscr, |
| 82 | struct ctrl_cmd *cmd) |
| 83 | { |
| 84 | int rc = _get_subscriber(dbc, by_selector, subscr); |
| 85 | switch (rc) { |
| 86 | case 0: |
| 87 | return true; |
| 88 | case -ENOTSUP: |
| 89 | cmd->reply = "Not a known subscriber 'by-xxx-' selector."; |
| 90 | return false; |
| 91 | case -EINVAL: |
| 92 | cmd->reply = "Invalid value part of 'by-xxx-value' selector."; |
| 93 | return false; |
| 94 | case -ENOENT: |
| 95 | cmd->reply = "No such subscriber."; |
| 96 | return false; |
| 97 | default: |
Thorsten Alteholz | b07f33d | 2019-07-16 21:21:36 +0200 | [diff] [blame] | 98 | cmd->reply = "An unknown error has occurred during get_subscriber()."; |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 99 | return false; |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | /* Optimization: if a subscriber operation is requested by-imsi, just return |
| 104 | * the IMSI right back. */ |
| 105 | static const char *get_subscriber_imsi(struct db_context *dbc, |
| 106 | const char *by_selector, |
| 107 | struct ctrl_cmd *cmd) |
| 108 | { |
| 109 | static struct hlr_subscriber subscr; |
| 110 | |
| 111 | if (startswith(by_selector, SEL_BY_IMSI)) |
| 112 | return by_selector + strlen(SEL_BY_IMSI); |
| 113 | if (!get_subscriber(dbc, by_selector, &subscr, cmd)) |
| 114 | return NULL; |
| 115 | return subscr.imsi; |
| 116 | } |
| 117 | |
| 118 | /* printf fmt and arg to completely omit a string if it is empty. */ |
| 119 | #define FMT_S "%s%s%s%s" |
| 120 | #define ARG_S(name, val) \ |
| 121 | (val) && *(val) ? "\n" : "", \ |
| 122 | (val) && *(val) ? name : "", \ |
| 123 | (val) && *(val) ? "\t" : "", \ |
| 124 | (val) && *(val) ? (val) : "" \ |
| 125 | |
| 126 | /* printf fmt and arg to completely omit bool of given value. */ |
| 127 | #define FMT_BOOL "%s" |
| 128 | #define ARG_BOOL(name, val) \ |
| 129 | val ? "\n" name "\t1" : "\n" name "\t0" |
| 130 | |
| 131 | static void print_subscr_info(struct ctrl_cmd *cmd, |
| 132 | struct hlr_subscriber *subscr) |
| 133 | { |
| 134 | ctrl_cmd_reply_printf(cmd, |
Stefan Sperling | 705b61b | 2018-12-07 12:44:50 +0100 | [diff] [blame] | 135 | "\nid\t%" PRIu64 |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 136 | FMT_S |
| 137 | FMT_S |
| 138 | FMT_BOOL |
| 139 | FMT_BOOL |
| 140 | FMT_S |
| 141 | FMT_S |
| 142 | FMT_S |
| 143 | FMT_BOOL |
| 144 | FMT_BOOL |
| 145 | "\nperiodic_lu_timer\t%u" |
| 146 | "\nperiodic_rau_tau_timer\t%u" |
| 147 | "\nlmsi\t%08x" |
| 148 | , |
| 149 | subscr->id, |
| 150 | ARG_S("imsi", subscr->imsi), |
| 151 | ARG_S("msisdn", subscr->msisdn), |
| 152 | ARG_BOOL("nam_cs", subscr->nam_cs), |
| 153 | ARG_BOOL("nam_ps", subscr->nam_ps), |
| 154 | ARG_S("vlr_number", subscr->vlr_number), |
| 155 | ARG_S("sgsn_number", subscr->sgsn_number), |
| 156 | ARG_S("sgsn_address", subscr->sgsn_address), |
| 157 | ARG_BOOL("ms_purged_cs", subscr->ms_purged_cs), |
| 158 | ARG_BOOL("ms_purged_ps", subscr->ms_purged_ps), |
| 159 | subscr->periodic_lu_timer, |
| 160 | subscr->periodic_rau_tau_timer, |
| 161 | subscr->lmsi |
| 162 | ); |
| 163 | } |
| 164 | |
| 165 | static void print_subscr_info_aud2g(struct ctrl_cmd *cmd, struct osmo_sub_auth_data *aud) |
| 166 | { |
| 167 | if (aud->algo == OSMO_AUTH_ALG_NONE) |
| 168 | return; |
| 169 | ctrl_cmd_reply_printf(cmd, |
| 170 | "\naud2g.algo\t%s" |
| 171 | "\naud2g.ki\t%s" |
| 172 | , |
| 173 | osmo_auth_alg_name(aud->algo), |
| 174 | hexdump_buf(aud->u.gsm.ki)); |
| 175 | } |
| 176 | |
| 177 | static void print_subscr_info_aud3g(struct ctrl_cmd *cmd, struct osmo_sub_auth_data *aud) |
| 178 | { |
| 179 | if (aud->algo == OSMO_AUTH_ALG_NONE) |
| 180 | return; |
| 181 | ctrl_cmd_reply_printf(cmd, |
| 182 | "\naud3g.algo\t%s" |
| 183 | "\naud3g.k\t%s" |
| 184 | , |
| 185 | osmo_auth_alg_name(aud->algo), |
| 186 | hexdump_buf(aud->u.umts.k)); |
| 187 | /* hexdump uses a static string buffer, hence only one hexdump per |
| 188 | * printf(). */ |
| 189 | ctrl_cmd_reply_printf(cmd, |
| 190 | "\naud3g.%s\t%s" |
| 191 | "\naud3g.ind_bitlen\t%u" |
Stefan Sperling | 705b61b | 2018-12-07 12:44:50 +0100 | [diff] [blame] | 192 | "\naud3g.sqn\t%" PRIu64 |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 193 | , |
| 194 | aud->u.umts.opc_is_op? "op" : "opc", |
| 195 | hexdump_buf(aud->u.umts.opc), |
| 196 | aud->u.umts.ind_bitlen, |
| 197 | aud->u.umts.sqn); |
| 198 | } |
| 199 | |
| 200 | CTRL_CMD_DEFINE_RO(subscr_info, "info"); |
| 201 | static int get_subscr_info(struct ctrl_cmd *cmd, void *data) |
Max | 9cacb6f | 2017-02-20 17:22:56 +0100 | [diff] [blame] | 202 | { |
Neels Hofmeyr | 00b1d43 | 2017-10-17 01:43:48 +0200 | [diff] [blame] | 203 | struct hlr_subscriber subscr; |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 204 | struct hlr *hlr = data; |
| 205 | const char *by_selector = cmd->node; |
Max | 9cacb6f | 2017-02-20 17:22:56 +0100 | [diff] [blame] | 206 | |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 207 | if (!get_subscriber(hlr->dbc, by_selector, &subscr, cmd)) |
| 208 | return CTRL_CMD_ERROR; |
| 209 | |
| 210 | print_subscr_info(cmd, &subscr); |
| 211 | |
| 212 | return CTRL_CMD_REPLY; |
| 213 | } |
| 214 | |
| 215 | CTRL_CMD_DEFINE_RO(subscr_info_aud, "info-aud"); |
| 216 | static int get_subscr_info_aud(struct ctrl_cmd *cmd, void *data) |
| 217 | { |
| 218 | const char *imsi; |
| 219 | struct osmo_sub_auth_data aud2g; |
| 220 | struct osmo_sub_auth_data aud3g; |
| 221 | struct hlr *hlr = data; |
| 222 | const char *by_selector = cmd->node; |
| 223 | int rc; |
| 224 | |
| 225 | imsi = get_subscriber_imsi(hlr->dbc, by_selector, cmd); |
| 226 | if (!imsi) |
| 227 | return CTRL_CMD_ERROR; |
| 228 | |
| 229 | rc = db_get_auth_data(hlr->dbc, imsi, &aud2g, &aud3g, NULL); |
| 230 | |
Neels Hofmeyr | bd1dca0 | 2017-11-23 15:25:30 +0100 | [diff] [blame] | 231 | switch (rc) { |
| 232 | case 0: |
| 233 | break; |
| 234 | case -ENOENT: |
| 235 | case -ENOKEY: |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 236 | /* No auth data found, tell the print*() functions about it. */ |
| 237 | aud2g.algo = OSMO_AUTH_ALG_NONE; |
| 238 | aud3g.algo = OSMO_AUTH_ALG_NONE; |
Neels Hofmeyr | bd1dca0 | 2017-11-23 15:25:30 +0100 | [diff] [blame] | 239 | break; |
| 240 | default: |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 241 | cmd->reply = "Error retrieving authentication data."; |
Max | 9cacb6f | 2017-02-20 17:22:56 +0100 | [diff] [blame] | 242 | return CTRL_CMD_ERROR; |
| 243 | } |
| 244 | |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 245 | print_subscr_info_aud2g(cmd, &aud2g); |
| 246 | print_subscr_info_aud3g(cmd, &aud3g); |
| 247 | |
| 248 | return CTRL_CMD_REPLY; |
| 249 | } |
| 250 | |
| 251 | CTRL_CMD_DEFINE_RO(subscr_info_all, "info-all"); |
| 252 | static int get_subscr_info_all(struct ctrl_cmd *cmd, void *data) |
| 253 | { |
| 254 | struct hlr_subscriber subscr; |
| 255 | struct osmo_sub_auth_data aud2g; |
| 256 | struct osmo_sub_auth_data aud3g; |
| 257 | struct hlr *hlr = data; |
| 258 | const char *by_selector = cmd->node; |
| 259 | int rc; |
| 260 | |
| 261 | if (!get_subscriber(hlr->dbc, by_selector, &subscr, cmd)) |
| 262 | return CTRL_CMD_ERROR; |
| 263 | |
| 264 | rc = db_get_auth_data(hlr->dbc, subscr.imsi, &aud2g, &aud3g, NULL); |
| 265 | |
Neels Hofmeyr | bd1dca0 | 2017-11-23 15:25:30 +0100 | [diff] [blame] | 266 | switch (rc) { |
| 267 | case 0: |
| 268 | break; |
| 269 | case -ENOENT: |
| 270 | case -ENOKEY: |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 271 | /* No auth data found, tell the print*() functions about it. */ |
| 272 | aud2g.algo = OSMO_AUTH_ALG_NONE; |
| 273 | aud3g.algo = OSMO_AUTH_ALG_NONE; |
Neels Hofmeyr | bd1dca0 | 2017-11-23 15:25:30 +0100 | [diff] [blame] | 274 | break; |
| 275 | default: |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 276 | cmd->reply = "Error retrieving authentication data."; |
Max | 9cacb6f | 2017-02-20 17:22:56 +0100 | [diff] [blame] | 277 | return CTRL_CMD_ERROR; |
| 278 | } |
| 279 | |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 280 | print_subscr_info(cmd, &subscr); |
| 281 | print_subscr_info_aud2g(cmd, &aud2g); |
| 282 | print_subscr_info_aud3g(cmd, &aud3g); |
| 283 | |
| 284 | return CTRL_CMD_REPLY; |
| 285 | } |
| 286 | |
| 287 | static int verify_subscr_cs_ps_enabled(struct ctrl_cmd *cmd, const char *value, void *data) |
| 288 | { |
| 289 | if (!value || !*value |
| 290 | || (strcmp(value, "0") && strcmp(value, "1"))) |
| 291 | return 1; |
| 292 | return 0; |
| 293 | } |
| 294 | |
| 295 | static int get_subscr_cs_ps_enabled(struct ctrl_cmd *cmd, void *data, |
| 296 | bool is_ps) |
| 297 | { |
| 298 | struct hlr_subscriber subscr; |
| 299 | struct hlr *hlr = data; |
| 300 | const char *by_selector = cmd->node; |
| 301 | |
| 302 | if (!get_subscriber(hlr->dbc, by_selector, &subscr, cmd)) |
| 303 | return CTRL_CMD_ERROR; |
| 304 | |
| 305 | cmd->reply = (is_ps ? subscr.nam_ps : subscr.nam_cs) |
| 306 | ? "1" : "0"; |
| 307 | return CTRL_CMD_REPLY; |
| 308 | } |
| 309 | |
| 310 | static int set_subscr_cs_ps_enabled(struct ctrl_cmd *cmd, void *data, |
| 311 | bool is_ps) |
| 312 | { |
| 313 | const char *imsi; |
| 314 | struct hlr *hlr = data; |
| 315 | const char *by_selector = cmd->node; |
| 316 | |
| 317 | imsi = get_subscriber_imsi(hlr->dbc, by_selector, cmd); |
| 318 | if (!imsi) |
| 319 | return CTRL_CMD_ERROR; |
| 320 | if (db_subscr_nam(hlr->dbc, imsi, strcmp(cmd->value, "1") == 0, is_ps)) |
| 321 | return CTRL_CMD_ERROR; |
Max | 9cacb6f | 2017-02-20 17:22:56 +0100 | [diff] [blame] | 322 | cmd->reply = "OK"; |
Max | 9cacb6f | 2017-02-20 17:22:56 +0100 | [diff] [blame] | 323 | return CTRL_CMD_REPLY; |
| 324 | } |
| 325 | |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 326 | CTRL_CMD_DEFINE(subscr_ps_enabled, "ps-enabled"); |
| 327 | static int verify_subscr_ps_enabled(struct ctrl_cmd *cmd, const char *value, void *data) |
Max | 9cacb6f | 2017-02-20 17:22:56 +0100 | [diff] [blame] | 328 | { |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 329 | return verify_subscr_cs_ps_enabled(cmd, value, data); |
| 330 | } |
| 331 | static int get_subscr_ps_enabled(struct ctrl_cmd *cmd, void *data) |
| 332 | { |
| 333 | return get_subscr_cs_ps_enabled(cmd, data, true); |
| 334 | } |
| 335 | static int set_subscr_ps_enabled(struct ctrl_cmd *cmd, void *data) |
| 336 | { |
| 337 | return set_subscr_cs_ps_enabled(cmd, data, true); |
Max | 9cacb6f | 2017-02-20 17:22:56 +0100 | [diff] [blame] | 338 | } |
| 339 | |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 340 | CTRL_CMD_DEFINE(subscr_cs_enabled, "cs-enabled"); |
| 341 | static int verify_subscr_cs_enabled(struct ctrl_cmd *cmd, const char *value, void *data) |
Max | 9cacb6f | 2017-02-20 17:22:56 +0100 | [diff] [blame] | 342 | { |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 343 | return verify_subscr_cs_ps_enabled(cmd, value, data); |
Max | 9cacb6f | 2017-02-20 17:22:56 +0100 | [diff] [blame] | 344 | } |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 345 | static int get_subscr_cs_enabled(struct ctrl_cmd *cmd, void *data) |
Max | 372868b | 2017-03-02 12:12:00 +0100 | [diff] [blame] | 346 | { |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 347 | return get_subscr_cs_ps_enabled(cmd, data, false); |
| 348 | } |
| 349 | static int set_subscr_cs_enabled(struct ctrl_cmd *cmd, void *data) |
| 350 | { |
| 351 | return set_subscr_cs_ps_enabled(cmd, data, false); |
Max | 372868b | 2017-03-02 12:12:00 +0100 | [diff] [blame] | 352 | } |
| 353 | |
| 354 | int hlr_ctrl_cmds_install() |
| 355 | { |
| 356 | int rc = 0; |
| 357 | |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 358 | rc |= ctrl_cmd_install(CTRL_NODE_SUBSCR_BY, &cmd_subscr_info); |
| 359 | rc |= ctrl_cmd_install(CTRL_NODE_SUBSCR_BY, &cmd_subscr_info_aud); |
| 360 | rc |= ctrl_cmd_install(CTRL_NODE_SUBSCR_BY, &cmd_subscr_info_all); |
| 361 | rc |= ctrl_cmd_install(CTRL_NODE_SUBSCR_BY, &cmd_subscr_ps_enabled); |
| 362 | rc |= ctrl_cmd_install(CTRL_NODE_SUBSCR_BY, &cmd_subscr_cs_enabled); |
Max | 372868b | 2017-03-02 12:12:00 +0100 | [diff] [blame] | 363 | |
| 364 | return rc; |
| 365 | } |
| 366 | |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 367 | static int hlr_ctrl_node_lookup(void *data, vector vline, int *node_type, |
| 368 | void **node_data, int *i) |
| 369 | { |
| 370 | const char *token = vector_slot(vline, *i); |
| 371 | |
| 372 | switch (*node_type) { |
| 373 | case CTRL_NODE_ROOT: |
| 374 | if (strcmp(token, "subscriber") != 0) |
| 375 | return 0; |
| 376 | *node_data = NULL; |
| 377 | *node_type = CTRL_NODE_SUBSCR; |
| 378 | break; |
| 379 | case CTRL_NODE_SUBSCR: |
| 380 | if (!startswith(token, "by-")) |
| 381 | return 0; |
| 382 | *node_data = (void*)token; |
| 383 | *node_type = CTRL_NODE_SUBSCR_BY; |
| 384 | break; |
| 385 | default: |
| 386 | return 0; |
| 387 | } |
| 388 | |
| 389 | return 1; |
| 390 | } |
| 391 | |
Neels Hofmeyr | 234f9cb | 2017-10-24 17:23:04 +0200 | [diff] [blame] | 392 | struct ctrl_handle *hlr_controlif_setup(struct hlr *hlr) |
Max | 372868b | 2017-03-02 12:12:00 +0100 | [diff] [blame] | 393 | { |
| 394 | int rc; |
Neels Hofmeyr | 234f9cb | 2017-10-24 17:23:04 +0200 | [diff] [blame] | 395 | struct ctrl_handle *hdl = ctrl_interface_setup_dynip2(hlr, |
| 396 | hlr->ctrl_bind_addr, |
| 397 | OSMO_CTRL_PORT_HLR, |
Neels Hofmeyr | 446eb0f | 2017-10-17 01:58:24 +0200 | [diff] [blame] | 398 | hlr_ctrl_node_lookup, |
| 399 | _LAST_CTRL_NODE_HLR); |
Max | 372868b | 2017-03-02 12:12:00 +0100 | [diff] [blame] | 400 | if (!hdl) |
| 401 | return NULL; |
| 402 | |
| 403 | rc = hlr_ctrl_cmds_install(); |
| 404 | if (rc) /* FIXME: close control interface? */ |
| 405 | return NULL; |
| 406 | |
| 407 | return hdl; |
| 408 | } |