Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 1 | /* (C) 2015 by Harald Welte <laforge@gnumonks.org> |
| 2 | * |
| 3 | * All Rights Reserved |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU Affero General Public License as published by |
| 7 | * the Free Software Foundation; either version 3 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU Affero General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU Affero General Public License |
| 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 17 | * |
| 18 | */ |
| 19 | |
| 20 | #include <string.h> |
Max | 00b3715 | 2017-02-20 11:09:27 +0100 | [diff] [blame] | 21 | #include <errno.h> |
Neels Hofmeyr | f7c3e6e | 2017-10-09 17:55:16 +0200 | [diff] [blame] | 22 | #include <inttypes.h> |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 23 | |
| 24 | #include <osmocom/core/utils.h> |
| 25 | #include <osmocom/crypt/auth.h> |
Neels Hofmeyr | f7c3e6e | 2017-10-09 17:55:16 +0200 | [diff] [blame] | 26 | #include <osmocom/gsm/gsm23003.h> |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 27 | |
| 28 | #include <sqlite3.h> |
| 29 | |
| 30 | #include "logging.h" |
Neels Hofmeyr | 00b1d43 | 2017-10-17 01:43:48 +0200 | [diff] [blame] | 31 | #include "hlr.h" |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 32 | #include "db.h" |
Neels Hofmeyr | 00b1d43 | 2017-10-17 01:43:48 +0200 | [diff] [blame] | 33 | #include "gsup_server.h" |
| 34 | #include "luop.h" |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 35 | |
Neels Hofmeyr | 40aa61c | 2017-10-09 17:56:04 +0200 | [diff] [blame] | 36 | #define LOGHLR(imsi, level, fmt, args ...) LOGP(DAUC, level, "IMSI='%s': " fmt, imsi, ## args) |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 37 | |
Neels Hofmeyr | 16140f7 | 2017-10-25 19:17:18 +0200 | [diff] [blame] | 38 | /*! Add new subscriber record to the HLR database. |
| 39 | * \param[in,out] dbc database context. |
| 40 | * \param[in] imsi ASCII string of IMSI digits, is validated. |
| 41 | * \returns 0 on success, -EINVAL on invalid IMSI, -EIO on database error. |
| 42 | */ |
Neels Hofmeyr | f7c3e6e | 2017-10-09 17:55:16 +0200 | [diff] [blame] | 43 | int db_subscr_create(struct db_context *dbc, const char *imsi) |
| 44 | { |
| 45 | sqlite3_stmt *stmt; |
| 46 | int rc; |
| 47 | |
| 48 | if (!osmo_imsi_str_valid(imsi)) { |
| 49 | LOGP(DAUC, LOGL_ERROR, "Cannot create subscriber: invalid IMSI: '%s'\n", |
| 50 | imsi); |
| 51 | return -EINVAL; |
| 52 | } |
| 53 | |
| 54 | stmt = dbc->stmt[DB_STMT_SUBSCR_CREATE]; |
| 55 | |
| 56 | if (!db_bind_text(stmt, "$imsi", imsi)) |
| 57 | return -EIO; |
| 58 | |
| 59 | /* execute the statement */ |
| 60 | rc = sqlite3_step(stmt); |
| 61 | db_remove_reset(stmt); |
| 62 | if (rc != SQLITE_DONE) { |
| 63 | LOGHLR(imsi, LOGL_ERROR, "Cannot create subscriber: SQL error: (%d) %s\n", |
| 64 | rc, sqlite3_errmsg(dbc->db)); |
| 65 | return -EIO; |
| 66 | } |
| 67 | |
| 68 | return 0; |
| 69 | } |
| 70 | |
Neels Hofmeyr | 16140f7 | 2017-10-25 19:17:18 +0200 | [diff] [blame] | 71 | /*! Completely delete a subscriber record from the HLR database. |
| 72 | * Also remove authentication data. |
| 73 | * Future todo: also drop from all other database tables, which aren't used yet |
| 74 | * at the time of writing this. |
| 75 | * \param[in,out] dbc database context. |
| 76 | * \param[in] subscr_id ID of the subscriber in the HLR db. |
| 77 | * \returns if the subscriber was found and removed, -EIO on database error, |
| 78 | * -ENOENT if no such subscriber data exists. |
| 79 | */ |
Neels Hofmeyr | f7c3e6e | 2017-10-09 17:55:16 +0200 | [diff] [blame] | 80 | int db_subscr_delete_by_id(struct db_context *dbc, int64_t subscr_id) |
| 81 | { |
| 82 | int rc; |
Neels Hofmeyr | 1332a17 | 2017-10-10 02:25:00 +0200 | [diff] [blame] | 83 | struct sub_auth_data_str aud; |
Neels Hofmeyr | f7c3e6e | 2017-10-09 17:55:16 +0200 | [diff] [blame] | 84 | int ret = 0; |
| 85 | |
| 86 | sqlite3_stmt *stmt = dbc->stmt[DB_STMT_DEL_BY_ID]; |
| 87 | |
| 88 | if (!db_bind_int64(stmt, "$subscriber_id", subscr_id)) |
| 89 | return -EIO; |
| 90 | |
| 91 | /* execute the statement */ |
| 92 | rc = sqlite3_step(stmt); |
| 93 | if (rc != SQLITE_DONE) { |
| 94 | LOGP(DAUC, LOGL_ERROR, |
| 95 | "Cannot delete subscriber ID=%"PRId64": SQL error: (%d) %s\n", |
| 96 | subscr_id, rc, sqlite3_errmsg(dbc->db)); |
| 97 | db_remove_reset(stmt); |
| 98 | return -EIO; |
| 99 | } |
| 100 | |
| 101 | /* verify execution result */ |
| 102 | rc = sqlite3_changes(dbc->db); |
| 103 | if (!rc) { |
| 104 | LOGP(DAUC, LOGL_ERROR, "Cannot delete: no such subscriber: ID=%"PRId64"\n", |
| 105 | subscr_id); |
| 106 | ret = -ENOENT; |
| 107 | } else if (rc != 1) { |
| 108 | LOGP(DAUC, LOGL_ERROR, "Delete subscriber ID=%"PRId64 |
| 109 | ": SQL modified %d rows (expected 1)\n", subscr_id, rc); |
| 110 | ret = -EIO; |
| 111 | } |
Neels Hofmeyr | f7c3e6e | 2017-10-09 17:55:16 +0200 | [diff] [blame] | 112 | db_remove_reset(stmt); |
Neels Hofmeyr | 1332a17 | 2017-10-10 02:25:00 +0200 | [diff] [blame] | 113 | |
| 114 | /* make sure to remove authentication data for this subscriber id, for |
| 115 | * both 2G and 3G. */ |
| 116 | |
| 117 | aud = (struct sub_auth_data_str){ |
| 118 | .type = OSMO_AUTH_TYPE_GSM, |
| 119 | .algo = OSMO_AUTH_ALG_NONE, |
| 120 | }; |
| 121 | rc = db_subscr_update_aud_by_id(dbc, subscr_id, &aud); |
| 122 | if (ret == -ENOENT && !rc) |
| 123 | ret = 0; |
| 124 | |
| 125 | aud = (struct sub_auth_data_str){ |
| 126 | .type = OSMO_AUTH_TYPE_UMTS, |
| 127 | .algo = OSMO_AUTH_ALG_NONE, |
| 128 | }; |
| 129 | rc = db_subscr_update_aud_by_id(dbc, subscr_id, &aud); |
| 130 | if (ret == -ENOENT && !rc) |
| 131 | ret = 0; |
| 132 | |
Neels Hofmeyr | f7c3e6e | 2017-10-09 17:55:16 +0200 | [diff] [blame] | 133 | return ret; |
| 134 | } |
| 135 | |
Neels Hofmeyr | 16140f7 | 2017-10-25 19:17:18 +0200 | [diff] [blame] | 136 | /*! Set a subscriber's MSISDN in the HLR database. |
| 137 | * \param[in,out] dbc database context. |
| 138 | * \param[in] imsi ASCII string of IMSI digits. |
| 139 | * \param[in] msisdn ASCII string of MSISDN digits. |
| 140 | * \returns 0 on success, -EINVAL in case of invalid MSISDN string, -EIO on |
| 141 | * database failure, -ENOENT if no such subscriber exists. |
| 142 | */ |
Neels Hofmeyr | f7c3e6e | 2017-10-09 17:55:16 +0200 | [diff] [blame] | 143 | int db_subscr_update_msisdn_by_imsi(struct db_context *dbc, const char *imsi, |
| 144 | const char *msisdn) |
| 145 | { |
| 146 | int rc; |
| 147 | int ret = 0; |
| 148 | |
| 149 | if (!osmo_msisdn_str_valid(msisdn)) { |
| 150 | LOGHLR(imsi, LOGL_ERROR, |
| 151 | "Cannot update subscriber: invalid MSISDN: '%s'\n", |
| 152 | msisdn); |
| 153 | return -EINVAL; |
| 154 | } |
| 155 | |
| 156 | sqlite3_stmt *stmt = dbc->stmt[DB_STMT_SET_MSISDN_BY_IMSI]; |
| 157 | |
| 158 | if (!db_bind_text(stmt, "$imsi", imsi)) |
| 159 | return -EIO; |
| 160 | if (!db_bind_text(stmt, "$msisdn", msisdn)) |
| 161 | return -EIO; |
| 162 | |
| 163 | /* execute the statement */ |
| 164 | rc = sqlite3_step(stmt); |
| 165 | if (rc != SQLITE_DONE) { |
| 166 | LOGHLR(imsi, LOGL_ERROR, |
| 167 | "Cannot update subscriber's MSISDN: SQL error: (%d) %s\n", |
| 168 | rc, sqlite3_errmsg(dbc->db)); |
| 169 | ret = -EIO; |
| 170 | goto out; |
| 171 | } |
| 172 | |
| 173 | /* verify execution result */ |
| 174 | rc = sqlite3_changes(dbc->db); |
| 175 | if (!rc) { |
| 176 | LOGP(DAUC, LOGL_ERROR, "Cannot update MSISDN: no such subscriber: IMSI='%s'\n", |
| 177 | imsi); |
| 178 | ret = -ENOENT; |
| 179 | goto out; |
| 180 | } else if (rc != 1) { |
| 181 | LOGHLR(imsi, LOGL_ERROR, "Update MSISDN: SQL modified %d rows (expected 1)\n", rc); |
| 182 | ret = -EIO; |
| 183 | } |
| 184 | |
| 185 | out: |
| 186 | db_remove_reset(stmt); |
| 187 | return ret; |
| 188 | |
| 189 | } |
| 190 | |
Neels Hofmeyr | 16140f7 | 2017-10-25 19:17:18 +0200 | [diff] [blame] | 191 | /*! Insert or update 2G or 3G authentication tokens in the database. |
Neels Hofmeyr | 1332a17 | 2017-10-10 02:25:00 +0200 | [diff] [blame] | 192 | * If aud->type is OSMO_AUTH_TYPE_GSM, the auc_2g table entry for the |
| 193 | * subscriber will be added or modified; if aud->algo is OSMO_AUTH_ALG_NONE, |
| 194 | * however, the auc_2g entry for the subscriber is deleted. If aud->type is |
| 195 | * OSMO_AUTH_TYPE_UMTS, the auc_3g table is updated; again, if aud->algo is |
| 196 | * OSMO_AUTH_ALG_NONE, the auc_3g entry is deleted. |
Neels Hofmeyr | 16140f7 | 2017-10-25 19:17:18 +0200 | [diff] [blame] | 197 | * \param[in,out] dbc database context. |
| 198 | * \param[in] subscr_id DB ID of the subscriber. |
| 199 | * \param[in] aud Pointer to new auth data (in ASCII string form). |
| 200 | * \returns 0 on success, -EINVAL for invalid aud, -ENOENT for unknown |
| 201 | * subscr_id, -EIO for database errors. |
Neels Hofmeyr | 1332a17 | 2017-10-10 02:25:00 +0200 | [diff] [blame] | 202 | */ |
| 203 | int db_subscr_update_aud_by_id(struct db_context *dbc, int64_t subscr_id, |
| 204 | const struct sub_auth_data_str *aud) |
| 205 | { |
| 206 | sqlite3_stmt *stmt_del; |
| 207 | sqlite3_stmt *stmt_ins; |
| 208 | sqlite3_stmt *stmt; |
| 209 | const char *label; |
| 210 | int rc; |
| 211 | int ret = 0; |
| 212 | |
| 213 | switch (aud->type) { |
| 214 | case OSMO_AUTH_TYPE_GSM: |
| 215 | label = "auc_2g"; |
| 216 | stmt_del = dbc->stmt[DB_STMT_AUC_2G_DELETE]; |
| 217 | stmt_ins = dbc->stmt[DB_STMT_AUC_2G_INSERT]; |
| 218 | |
| 219 | switch (aud->algo) { |
| 220 | case OSMO_AUTH_ALG_NONE: |
| 221 | case OSMO_AUTH_ALG_COMP128v1: |
| 222 | case OSMO_AUTH_ALG_COMP128v2: |
| 223 | case OSMO_AUTH_ALG_COMP128v3: |
| 224 | case OSMO_AUTH_ALG_XOR: |
| 225 | break; |
| 226 | case OSMO_AUTH_ALG_MILENAGE: |
| 227 | LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:" |
| 228 | " auth algo not suited for 2G: %s\n", |
| 229 | osmo_auth_alg_name(aud->algo)); |
| 230 | return -EINVAL; |
| 231 | default: |
| 232 | LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:" |
| 233 | " Unknown auth algo: %d\n", aud->algo); |
| 234 | return -EINVAL; |
| 235 | } |
| 236 | |
| 237 | if (aud->algo == OSMO_AUTH_ALG_NONE) |
| 238 | break; |
| 239 | if (!osmo_is_hexstr(aud->u.gsm.ki, 32, 32, true)) { |
| 240 | LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:" |
| 241 | " Invalid KI: '%s'\n", aud->u.gsm.ki); |
| 242 | return -EINVAL; |
| 243 | } |
| 244 | break; |
| 245 | |
| 246 | case OSMO_AUTH_TYPE_UMTS: |
| 247 | label = "auc_3g"; |
| 248 | stmt_del = dbc->stmt[DB_STMT_AUC_3G_DELETE]; |
| 249 | stmt_ins = dbc->stmt[DB_STMT_AUC_3G_INSERT]; |
| 250 | switch (aud->algo) { |
| 251 | case OSMO_AUTH_ALG_NONE: |
| 252 | case OSMO_AUTH_ALG_MILENAGE: |
| 253 | break; |
| 254 | case OSMO_AUTH_ALG_COMP128v1: |
| 255 | case OSMO_AUTH_ALG_COMP128v2: |
| 256 | case OSMO_AUTH_ALG_COMP128v3: |
| 257 | case OSMO_AUTH_ALG_XOR: |
| 258 | LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:" |
| 259 | " auth algo not suited for 3G: %s\n", |
| 260 | osmo_auth_alg_name(aud->algo)); |
| 261 | return -EINVAL; |
| 262 | default: |
| 263 | LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:" |
| 264 | " Unknown auth algo: %d\n", aud->algo); |
| 265 | return -EINVAL; |
| 266 | } |
| 267 | |
| 268 | if (aud->algo == OSMO_AUTH_ALG_NONE) |
| 269 | break; |
| 270 | if (!osmo_is_hexstr(aud->u.umts.k, 32, 32, true)) { |
| 271 | LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:" |
| 272 | " Invalid K: '%s'\n", aud->u.umts.k); |
| 273 | return -EINVAL; |
| 274 | } |
| 275 | if (!osmo_is_hexstr(aud->u.umts.opc, 32, 32, true)) { |
| 276 | LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:" |
| 277 | " Invalid OP/OPC: '%s'\n", aud->u.umts.opc); |
| 278 | return -EINVAL; |
| 279 | } |
| 280 | if (aud->u.umts.ind_bitlen > OSMO_MILENAGE_IND_BITLEN_MAX) { |
| 281 | LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:" |
| 282 | " Invalid ind_bitlen: %d\n", aud->u.umts.ind_bitlen); |
| 283 | return -EINVAL; |
| 284 | } |
| 285 | break; |
| 286 | default: |
| 287 | LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:" |
| 288 | " unknown auth type: %d\n", aud->type); |
| 289 | return -EINVAL; |
| 290 | } |
| 291 | |
| 292 | stmt = stmt_del; |
| 293 | |
| 294 | if (!db_bind_int64(stmt, "$subscriber_id", subscr_id)) |
| 295 | return -EIO; |
| 296 | |
| 297 | /* execute the statement */ |
| 298 | rc = sqlite3_step(stmt); |
| 299 | if (rc != SQLITE_DONE) { |
| 300 | LOGP(DAUC, LOGL_ERROR, |
| 301 | "Cannot delete %s row: SQL error: (%d) %s\n", |
| 302 | label, rc, sqlite3_errmsg(dbc->db)); |
| 303 | ret = -EIO; |
| 304 | goto out; |
| 305 | } |
| 306 | |
| 307 | /* verify execution result */ |
| 308 | rc = sqlite3_changes(dbc->db); |
| 309 | if (!rc) |
| 310 | /* Leave "no such entry" logging to the caller -- during |
| 311 | * db_subscr_delete_by_id(), we call this to make sure it is |
| 312 | * empty, and no entry is not an error then.*/ |
| 313 | ret = -ENOENT; |
| 314 | else if (rc != 1) { |
| 315 | LOGP(DAUC, LOGL_ERROR, "Delete subscriber ID=%"PRId64 |
| 316 | " from %s: SQL modified %d rows (expected 1)\n", |
| 317 | subscr_id, label, rc); |
| 318 | ret = -EIO; |
| 319 | } |
| 320 | |
| 321 | db_remove_reset(stmt); |
| 322 | |
| 323 | /* Error situation? Return now. */ |
| 324 | if (ret && ret != -ENOENT) |
| 325 | return ret; |
| 326 | |
| 327 | /* Just delete requested? */ |
| 328 | if (aud->algo == OSMO_AUTH_ALG_NONE) |
| 329 | return ret; |
| 330 | |
| 331 | /* Don't return -ENOENT if inserting new data. */ |
| 332 | ret = 0; |
| 333 | |
| 334 | /* Insert new row */ |
| 335 | stmt = stmt_ins; |
| 336 | |
| 337 | if (!db_bind_int64(stmt, "$subscriber_id", subscr_id)) |
| 338 | return -EIO; |
| 339 | |
| 340 | switch (aud->type) { |
| 341 | case OSMO_AUTH_TYPE_GSM: |
| 342 | if (!db_bind_int(stmt, "$algo_id_2g", aud->algo)) |
| 343 | return -EIO; |
| 344 | if (!db_bind_text(stmt, "$ki", aud->u.gsm.ki)) |
| 345 | return -EIO; |
| 346 | break; |
| 347 | case OSMO_AUTH_TYPE_UMTS: |
| 348 | if (!db_bind_int(stmt, "$algo_id_3g", aud->algo)) |
| 349 | return -EIO; |
| 350 | if (!db_bind_text(stmt, "$k", aud->u.umts.k)) |
| 351 | return -EIO; |
| 352 | if (!db_bind_text(stmt, "$op", |
| 353 | aud->u.umts.opc_is_op ? aud->u.umts.opc : NULL)) |
| 354 | return -EIO; |
| 355 | if (!db_bind_text(stmt, "$opc", |
| 356 | aud->u.umts.opc_is_op ? NULL : aud->u.umts.opc)) |
| 357 | return -EIO; |
| 358 | if (!db_bind_int(stmt, "$ind_bitlen", aud->u.umts.ind_bitlen)) |
| 359 | return -EIO; |
| 360 | break; |
| 361 | default: |
| 362 | OSMO_ASSERT(false); |
| 363 | } |
| 364 | |
| 365 | /* execute the statement */ |
| 366 | rc = sqlite3_step(stmt); |
| 367 | if (rc != SQLITE_DONE) { |
| 368 | LOGP(DAUC, LOGL_ERROR, |
| 369 | "Cannot insert %s row: SQL error: (%d) %s\n", |
| 370 | label, rc, sqlite3_errmsg(dbc->db)); |
| 371 | ret = -EIO; |
| 372 | goto out; |
| 373 | } |
| 374 | |
| 375 | out: |
| 376 | db_remove_reset(stmt); |
| 377 | return ret; |
| 378 | } |
| 379 | |
Neels Hofmeyr | 9c2bbc8 | 2017-10-09 17:30:32 +0200 | [diff] [blame] | 380 | /* Common code for db_subscr_get_by_*() functions. */ |
| 381 | static int db_sel(struct db_context *dbc, sqlite3_stmt *stmt, struct hlr_subscriber *subscr, |
| 382 | const char **err) |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 383 | { |
Max | adc6648 | 2017-02-20 11:23:20 +0100 | [diff] [blame] | 384 | int rc; |
Neels Hofmeyr | 9c2bbc8 | 2017-10-09 17:30:32 +0200 | [diff] [blame] | 385 | int ret = 0; |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 386 | |
| 387 | /* execute the statement */ |
| 388 | rc = sqlite3_step(stmt); |
Neels Hofmeyr | 9c2bbc8 | 2017-10-09 17:30:32 +0200 | [diff] [blame] | 389 | if (rc == SQLITE_DONE) { |
| 390 | ret = -ENOENT; |
| 391 | goto out; |
| 392 | } |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 393 | if (rc != SQLITE_ROW) { |
Neels Hofmeyr | 9c2bbc8 | 2017-10-09 17:30:32 +0200 | [diff] [blame] | 394 | ret = -EIO; |
| 395 | goto out; |
Max | adc6648 | 2017-02-20 11:23:20 +0100 | [diff] [blame] | 396 | } |
| 397 | |
Neels Hofmeyr | 9c2bbc8 | 2017-10-09 17:30:32 +0200 | [diff] [blame] | 398 | if (!subscr) |
| 399 | goto out; |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 400 | |
Neels Hofmeyr | b6837e3 | 2017-10-10 23:20:26 +0200 | [diff] [blame] | 401 | *subscr = (struct hlr_subscriber){}; |
| 402 | |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 403 | /* obtain the various columns */ |
| 404 | subscr->id = sqlite3_column_int64(stmt, 0); |
Neels Hofmeyr | dbced93 | 2017-10-27 02:57:51 +0200 | [diff] [blame] | 405 | copy_sqlite3_text_to_buf(subscr->imsi, stmt, 1); |
| 406 | copy_sqlite3_text_to_buf(subscr->msisdn, stmt, 2); |
Harald Welte | 9990927 | 2016-05-05 18:24:15 +0200 | [diff] [blame] | 407 | /* FIXME: These should all be BLOBs as they might contain NUL */ |
Neels Hofmeyr | dbced93 | 2017-10-27 02:57:51 +0200 | [diff] [blame] | 408 | copy_sqlite3_text_to_buf(subscr->vlr_number, stmt, 3); |
| 409 | copy_sqlite3_text_to_buf(subscr->sgsn_number, stmt, 4); |
| 410 | copy_sqlite3_text_to_buf(subscr->sgsn_address, stmt, 5); |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 411 | subscr->periodic_lu_timer = sqlite3_column_int(stmt, 6); |
| 412 | subscr->periodic_rau_tau_timer = sqlite3_column_int(stmt, 7); |
| 413 | subscr->nam_cs = sqlite3_column_int(stmt, 8); |
| 414 | subscr->nam_ps = sqlite3_column_int(stmt, 9); |
| 415 | subscr->lmsi = sqlite3_column_int(stmt, 10); |
| 416 | subscr->ms_purged_cs = sqlite3_column_int(stmt, 11); |
| 417 | subscr->ms_purged_ps = sqlite3_column_int(stmt, 12); |
| 418 | |
Neels Hofmeyr | 9c2bbc8 | 2017-10-09 17:30:32 +0200 | [diff] [blame] | 419 | out: |
Max | 00b3715 | 2017-02-20 11:09:27 +0100 | [diff] [blame] | 420 | db_remove_reset(stmt); |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 421 | |
Neels Hofmeyr | 9c2bbc8 | 2017-10-09 17:30:32 +0200 | [diff] [blame] | 422 | switch (ret) { |
| 423 | case 0: |
| 424 | *err = NULL; |
| 425 | break; |
| 426 | case -ENOENT: |
| 427 | *err = "No such subscriber"; |
| 428 | break; |
| 429 | default: |
| 430 | *err = sqlite3_errmsg(dbc->db); |
| 431 | break; |
| 432 | } |
| 433 | return ret; |
| 434 | } |
| 435 | |
Neels Hofmeyr | 16140f7 | 2017-10-25 19:17:18 +0200 | [diff] [blame] | 436 | /*! Retrieve subscriber data from the HLR database. |
| 437 | * \param[in,out] dbc database context. |
| 438 | * \param[in] imsi ASCII string of IMSI digits. |
| 439 | * \param[out] subscr place retrieved data in this struct. |
| 440 | * \returns 0 on success, -ENOENT if no such subscriber was found, -EIO on |
| 441 | * database error. |
| 442 | */ |
Neels Hofmeyr | 9c2bbc8 | 2017-10-09 17:30:32 +0200 | [diff] [blame] | 443 | int db_subscr_get_by_imsi(struct db_context *dbc, const char *imsi, |
| 444 | struct hlr_subscriber *subscr) |
| 445 | { |
| 446 | sqlite3_stmt *stmt = dbc->stmt[DB_STMT_SEL_BY_IMSI]; |
| 447 | const char *err; |
| 448 | int rc; |
| 449 | |
| 450 | if (!db_bind_text(stmt, NULL, imsi)) |
| 451 | return -EIO; |
| 452 | |
| 453 | rc = db_sel(dbc, stmt, subscr, &err); |
| 454 | if (rc) |
| 455 | LOGP(DAUC, LOGL_ERROR, "Cannot read subscriber from db: IMSI='%s': %s\n", |
| 456 | imsi, err); |
| 457 | return rc; |
| 458 | } |
| 459 | |
Neels Hofmeyr | 16140f7 | 2017-10-25 19:17:18 +0200 | [diff] [blame] | 460 | /*! Retrieve subscriber data from the HLR database. |
| 461 | * \param[in,out] dbc database context. |
| 462 | * \param[in] msisdn ASCII string of MSISDN digits. |
| 463 | * \param[out] subscr place retrieved data in this struct. |
| 464 | * \returns 0 on success, -ENOENT if no such subscriber was found, -EIO on |
| 465 | * database error. |
| 466 | */ |
Neels Hofmeyr | 9c2bbc8 | 2017-10-09 17:30:32 +0200 | [diff] [blame] | 467 | int db_subscr_get_by_msisdn(struct db_context *dbc, const char *msisdn, |
| 468 | struct hlr_subscriber *subscr) |
| 469 | { |
| 470 | sqlite3_stmt *stmt = dbc->stmt[DB_STMT_SEL_BY_MSISDN]; |
| 471 | const char *err; |
| 472 | int rc; |
| 473 | |
| 474 | if (!db_bind_text(stmt, NULL, msisdn)) |
| 475 | return -EIO; |
| 476 | |
| 477 | rc = db_sel(dbc, stmt, subscr, &err); |
| 478 | if (rc) |
| 479 | LOGP(DAUC, LOGL_ERROR, "Cannot read subscriber from db: MSISDN='%s': %s\n", |
| 480 | msisdn, err); |
| 481 | return rc; |
| 482 | } |
| 483 | |
Neels Hofmeyr | 16140f7 | 2017-10-25 19:17:18 +0200 | [diff] [blame] | 484 | /*! Retrieve subscriber data from the HLR database. |
| 485 | * \param[in,out] dbc database context. |
| 486 | * \param[in] id ID of the subscriber in the HLR db. |
| 487 | * \param[out] subscr place retrieved data in this struct. |
| 488 | * \returns 0 on success, -ENOENT if no such subscriber was found, -EIO on |
| 489 | * database error. |
| 490 | */ |
Neels Hofmeyr | 9c2bbc8 | 2017-10-09 17:30:32 +0200 | [diff] [blame] | 491 | int db_subscr_get_by_id(struct db_context *dbc, int64_t id, |
| 492 | struct hlr_subscriber *subscr) |
| 493 | { |
| 494 | sqlite3_stmt *stmt = dbc->stmt[DB_STMT_SEL_BY_ID]; |
| 495 | const char *err; |
| 496 | int rc; |
| 497 | |
| 498 | if (!db_bind_int64(stmt, NULL, id)) |
| 499 | return -EIO; |
| 500 | |
| 501 | rc = db_sel(dbc, stmt, subscr, &err); |
| 502 | if (rc) |
| 503 | LOGP(DAUC, LOGL_ERROR, "Cannot read subscriber from db: ID=%"PRId64": %s\n", |
| 504 | id, err); |
| 505 | return rc; |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 506 | } |
| 507 | |
Neels Hofmeyr | 16140f7 | 2017-10-25 19:17:18 +0200 | [diff] [blame] | 508 | /*! You should use hlr_subscr_nam() instead; enable or disable PS or CS for a |
| 509 | * subscriber without notifying GSUP clients. |
| 510 | * \param[in,out] dbc database context. |
| 511 | * \param[in] imsi ASCII string of IMSI digits. |
| 512 | * \param[in] nam_val True to enable CS/PS, false to disable. |
| 513 | * \param[in] is_ps when true, set nam_ps, else set nam_cs. |
| 514 | * \returns 0 on success, -ENOENT when the given IMSI does not exist, -EIO on |
| 515 | * database errors. |
Neels Hofmeyr | e8ccd50 | 2017-10-06 04:10:06 +0200 | [diff] [blame] | 516 | */ |
| 517 | int db_subscr_nam(struct db_context *dbc, const char *imsi, bool nam_val, bool is_ps) |
Max | 3ce3686 | 2017-02-20 11:18:04 +0100 | [diff] [blame] | 518 | { |
Neels Hofmeyr | e8ccd50 | 2017-10-06 04:10:06 +0200 | [diff] [blame] | 519 | sqlite3_stmt *stmt; |
Max | 3ce3686 | 2017-02-20 11:18:04 +0100 | [diff] [blame] | 520 | int rc; |
Neels Hofmeyr | e8ccd50 | 2017-10-06 04:10:06 +0200 | [diff] [blame] | 521 | int ret = 0; |
Max | 3ce3686 | 2017-02-20 11:18:04 +0100 | [diff] [blame] | 522 | |
Neels Hofmeyr | e8ccd50 | 2017-10-06 04:10:06 +0200 | [diff] [blame] | 523 | stmt = dbc->stmt[is_ps ? DB_STMT_UPD_NAM_PS_BY_IMSI |
| 524 | : DB_STMT_UPD_NAM_CS_BY_IMSI]; |
Max | 3ce3686 | 2017-02-20 11:18:04 +0100 | [diff] [blame] | 525 | |
Neels Hofmeyr | e8ccd50 | 2017-10-06 04:10:06 +0200 | [diff] [blame] | 526 | if (!db_bind_text(stmt, "$imsi", imsi)) |
| 527 | return -EIO; |
| 528 | if (!db_bind_int(stmt, "$val", nam_val ? 1 : 0)) |
| 529 | return -EIO; |
| 530 | |
| 531 | /* execute the statement */ |
| 532 | rc = sqlite3_step(stmt); |
Max | 3ce3686 | 2017-02-20 11:18:04 +0100 | [diff] [blame] | 533 | if (rc != SQLITE_DONE) { |
Neels Hofmeyr | e8ccd50 | 2017-10-06 04:10:06 +0200 | [diff] [blame] | 534 | LOGHLR(imsi, LOGL_ERROR, "%s %s: SQL error: %s\n", |
| 535 | nam_val ? "enable" : "disable", |
| 536 | is_ps ? "PS" : "CS", |
| 537 | sqlite3_errmsg(dbc->db)); |
| 538 | ret = -EIO; |
| 539 | goto out; |
Max | 3ce3686 | 2017-02-20 11:18:04 +0100 | [diff] [blame] | 540 | } |
| 541 | |
Neels Hofmeyr | e8ccd50 | 2017-10-06 04:10:06 +0200 | [diff] [blame] | 542 | /* verify execution result */ |
| 543 | rc = sqlite3_changes(dbc->db); |
| 544 | if (!rc) { |
| 545 | LOGP(DAUC, LOGL_ERROR, "Cannot %s %s: no such subscriber: IMSI='%s'\n", |
| 546 | nam_val ? "enable" : "disable", |
| 547 | is_ps ? "PS" : "CS", |
| 548 | imsi); |
| 549 | ret = -ENOENT; |
| 550 | goto out; |
| 551 | } else if (rc != 1) { |
| 552 | LOGHLR(imsi, LOGL_ERROR, "%s %s: SQL modified %d rows (expected 1)\n", |
| 553 | nam_val ? "enable" : "disable", |
| 554 | is_ps ? "PS" : "CS", |
Max | 3ce3686 | 2017-02-20 11:18:04 +0100 | [diff] [blame] | 555 | rc); |
Neels Hofmeyr | e8ccd50 | 2017-10-06 04:10:06 +0200 | [diff] [blame] | 556 | ret = -EIO; |
Max | 3ce3686 | 2017-02-20 11:18:04 +0100 | [diff] [blame] | 557 | } |
| 558 | |
Neels Hofmeyr | e8ccd50 | 2017-10-06 04:10:06 +0200 | [diff] [blame] | 559 | out: |
Max | 3ce3686 | 2017-02-20 11:18:04 +0100 | [diff] [blame] | 560 | db_remove_reset(stmt); |
Neels Hofmeyr | e8ccd50 | 2017-10-06 04:10:06 +0200 | [diff] [blame] | 561 | return ret; |
Max | 3ce3686 | 2017-02-20 11:18:04 +0100 | [diff] [blame] | 562 | } |
| 563 | |
Neels Hofmeyr | 16140f7 | 2017-10-25 19:17:18 +0200 | [diff] [blame] | 564 | /*! Record a Location Updating in the database. |
| 565 | * \param[in,out] dbc database context. |
| 566 | * \param[in] subscr_id ID of the subscriber in the HLR db. |
| 567 | * \param[in] vlr_or_sgsn_number ASCII string of identifier digits. |
| 568 | * \param[in] is_ps when true, set sgsn_number, else set vlr_number. |
| 569 | * \returns 0 on success, -ENOENT when the given subscriber does not exist, |
| 570 | * -EIO on database errors. |
| 571 | */ |
Neels Hofmeyr | dd78305 | 2017-10-09 17:36:08 +0200 | [diff] [blame] | 572 | int db_subscr_lu(struct db_context *dbc, int64_t subscr_id, |
| 573 | const char *vlr_or_sgsn_number, bool is_ps) |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 574 | { |
Neels Hofmeyr | dd78305 | 2017-10-09 17:36:08 +0200 | [diff] [blame] | 575 | sqlite3_stmt *stmt; |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 576 | int rc, ret = 0; |
| 577 | |
Neels Hofmeyr | dd78305 | 2017-10-09 17:36:08 +0200 | [diff] [blame] | 578 | stmt = dbc->stmt[is_ps ? DB_STMT_UPD_SGSN_BY_ID |
| 579 | : DB_STMT_UPD_VLR_BY_ID]; |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 580 | |
Neels Hofmeyr | dd78305 | 2017-10-09 17:36:08 +0200 | [diff] [blame] | 581 | if (!db_bind_int64(stmt, "$subscriber_id", subscr_id)) |
| 582 | return -EIO; |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 583 | |
Neels Hofmeyr | dd78305 | 2017-10-09 17:36:08 +0200 | [diff] [blame] | 584 | if (!db_bind_text(stmt, "$number", vlr_or_sgsn_number)) |
| 585 | return -EIO; |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 586 | |
| 587 | /* execute the statement */ |
| 588 | rc = sqlite3_step(stmt); |
| 589 | if (rc != SQLITE_DONE) { |
Neels Hofmeyr | dd78305 | 2017-10-09 17:36:08 +0200 | [diff] [blame] | 590 | LOGP(DAUC, LOGL_ERROR, "Update %s number for subscriber ID=%"PRId64": SQL Error: %s\n", |
| 591 | is_ps? "SGSN" : "VLR", subscr_id, sqlite3_errmsg(dbc->db)); |
| 592 | ret = -EIO; |
| 593 | goto out; |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 594 | } |
Neels Hofmeyr | dd78305 | 2017-10-09 17:36:08 +0200 | [diff] [blame] | 595 | |
| 596 | /* verify execution result */ |
| 597 | rc = sqlite3_changes(dbc->db); |
| 598 | if (!rc) { |
| 599 | LOGP(DAUC, LOGL_ERROR, "Cannot update %s number for subscriber ID=%"PRId64 |
| 600 | ": no such subscriber\n", |
| 601 | is_ps? "SGSN" : "VLR", subscr_id); |
| 602 | ret = -ENOENT; |
| 603 | } else if (rc != 1) { |
| 604 | LOGP(DAUC, LOGL_ERROR, "Update %s number for subscriber ID=%"PRId64 |
| 605 | ": SQL modified %d rows (expected 1)\n", |
| 606 | is_ps? "SGSN" : "VLR", subscr_id, rc); |
| 607 | ret = -EIO; |
| 608 | } |
| 609 | |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 610 | out: |
Max | 00b3715 | 2017-02-20 11:09:27 +0100 | [diff] [blame] | 611 | db_remove_reset(stmt); |
Harald Welte | e687be5 | 2016-05-03 18:49:27 +0200 | [diff] [blame] | 612 | return ret; |
| 613 | } |
Harald Welte | b18f0e0 | 2016-05-05 21:03:03 +0200 | [diff] [blame] | 614 | |
Neels Hofmeyr | 16140f7 | 2017-10-25 19:17:18 +0200 | [diff] [blame] | 615 | /*! Set the ms_purged_cs or ms_purged_ps values in the database. |
| 616 | * \param[in,out] dbc database context. |
| 617 | * \param[in] by_imsi ASCII string of IMSI digits. |
| 618 | * \param[in] purge_val true to purge, false to un-purge. |
| 619 | * \param[in] is_ps when true, set ms_purged_ps, else set ms_purged_cs. |
| 620 | * \returns 0 on success, -ENOENT when the given IMSI does not exist, -EIO on |
| 621 | * database errors. |
| 622 | */ |
Neels Hofmeyr | e50121e | 2017-10-09 17:48:51 +0200 | [diff] [blame] | 623 | int db_subscr_purge(struct db_context *dbc, const char *by_imsi, |
| 624 | bool purge_val, bool is_ps) |
Harald Welte | b18f0e0 | 2016-05-05 21:03:03 +0200 | [diff] [blame] | 625 | { |
Neels Hofmeyr | e50121e | 2017-10-09 17:48:51 +0200 | [diff] [blame] | 626 | sqlite3_stmt *stmt; |
| 627 | int rc, ret = 0; |
Harald Welte | b18f0e0 | 2016-05-05 21:03:03 +0200 | [diff] [blame] | 628 | |
Neels Hofmeyr | e50121e | 2017-10-09 17:48:51 +0200 | [diff] [blame] | 629 | stmt = dbc->stmt[is_ps ? DB_STMT_UPD_PURGE_PS_BY_IMSI |
| 630 | : DB_STMT_UPD_PURGE_CS_BY_IMSI]; |
Harald Welte | b18f0e0 | 2016-05-05 21:03:03 +0200 | [diff] [blame] | 631 | |
Neels Hofmeyr | e50121e | 2017-10-09 17:48:51 +0200 | [diff] [blame] | 632 | if (!db_bind_text(stmt, "$imsi", by_imsi)) |
| 633 | return -EIO; |
| 634 | if (!db_bind_int(stmt, "$val", purge_val ? 1 : 0)) |
| 635 | return -EIO; |
Harald Welte | b18f0e0 | 2016-05-05 21:03:03 +0200 | [diff] [blame] | 636 | |
| 637 | /* execute the statement */ |
| 638 | rc = sqlite3_step(stmt); |
| 639 | if (rc != SQLITE_DONE) { |
Neels Hofmeyr | e50121e | 2017-10-09 17:48:51 +0200 | [diff] [blame] | 640 | LOGP(DAUC, LOGL_ERROR, "%s %s: SQL error: %s\n", |
| 641 | purge_val ? "purge" : "un-purge", |
| 642 | is_ps ? "PS" : "CS", |
| 643 | sqlite3_errmsg(dbc->db)); |
| 644 | ret = -EIO; |
| 645 | goto out; |
Harald Welte | b18f0e0 | 2016-05-05 21:03:03 +0200 | [diff] [blame] | 646 | } |
Max | 00b3715 | 2017-02-20 11:09:27 +0100 | [diff] [blame] | 647 | |
Neels Hofmeyr | e50121e | 2017-10-09 17:48:51 +0200 | [diff] [blame] | 648 | /* verify execution result */ |
| 649 | rc = sqlite3_changes(dbc->db); |
| 650 | if (!rc) { |
| 651 | LOGP(DAUC, LOGL_ERROR, "Cannot %s %s: no such subscriber: IMSI='%s'\n", |
| 652 | purge_val ? "purge" : "un-purge", |
| 653 | is_ps ? "PS" : "CS", |
| 654 | by_imsi); |
| 655 | ret = -ENOENT; |
| 656 | goto out; |
| 657 | } else if (rc != 1) { |
| 658 | LOGHLR(by_imsi, LOGL_ERROR, "%s %s: SQL modified %d rows (expected 1)\n", |
| 659 | purge_val ? "purge" : "un-purge", |
| 660 | is_ps ? "PS" : "CS", |
| 661 | rc); |
| 662 | ret = -EIO; |
| 663 | } |
| 664 | |
| 665 | out: |
Max | 00b3715 | 2017-02-20 11:09:27 +0100 | [diff] [blame] | 666 | db_remove_reset(stmt); |
Harald Welte | b18f0e0 | 2016-05-05 21:03:03 +0200 | [diff] [blame] | 667 | |
| 668 | return ret; |
| 669 | } |
Neels Hofmeyr | 00b1d43 | 2017-10-17 01:43:48 +0200 | [diff] [blame] | 670 | |
| 671 | /*! Update nam_cs/nam_ps in the db and trigger notifications to GSUP clients. |
Neels Hofmeyr | 16140f7 | 2017-10-25 19:17:18 +0200 | [diff] [blame] | 672 | * \param[in,out] hlr Global hlr context. |
| 673 | * \param[in] subscr Subscriber from a fresh db_subscr_get_by_*() call. |
| 674 | * \param[in] nam_val True to enable CS/PS, false to disable. |
| 675 | * \param[in] is_ps True to enable/disable PS, false for CS. |
Neels Hofmeyr | 00b1d43 | 2017-10-17 01:43:48 +0200 | [diff] [blame] | 676 | * \returns 0 on success, ENOEXEC if there is no need to change, a negative |
| 677 | * value on error. |
| 678 | */ |
| 679 | int hlr_subscr_nam(struct hlr *hlr, struct hlr_subscriber *subscr, bool nam_val, bool is_ps) |
| 680 | { |
| 681 | int rc; |
| 682 | struct lu_operation *luop; |
| 683 | struct osmo_gsup_conn *co; |
| 684 | bool is_val = is_ps? subscr->nam_ps : subscr->nam_cs; |
| 685 | |
| 686 | if (is_val == nam_val) { |
| 687 | LOGHLR(subscr->imsi, LOGL_DEBUG, "Already has the requested value when asked to %s %s\n", |
| 688 | nam_val ? "enable" : "disable", is_ps ? "PS" : "CS"); |
| 689 | return ENOEXEC; |
| 690 | } |
| 691 | |
| 692 | rc = db_subscr_nam(hlr->dbc, subscr->imsi, nam_val, is_ps); |
| 693 | if (rc) |
| 694 | return rc > 0? -rc : rc; |
| 695 | |
| 696 | /* If we're disabling, send a notice out to the GSUP client that is |
| 697 | * responsible. Otherwise no need. */ |
| 698 | if (nam_val) |
| 699 | return 0; |
| 700 | |
| 701 | /* FIXME: only send to single SGSN where latest update for IMSI came from */ |
| 702 | llist_for_each_entry(co, &hlr->gs->clients, list) { |
| 703 | luop = lu_op_alloc_conn(co); |
| 704 | if (!luop) { |
| 705 | LOGHLR(subscr->imsi, LOGL_ERROR, |
| 706 | "Cannot notify GSUP client, cannot allocate lu_operation," |
| 707 | " for %s:%u\n", |
| 708 | co && co->conn && co->conn->server? co->conn->server->addr : "unset", |
| 709 | co && co->conn && co->conn->server? co->conn->server->port : 0); |
| 710 | continue; |
| 711 | } |
| 712 | luop->subscr = *subscr; |
| 713 | lu_op_tx_del_subscr_data(luop); |
| 714 | lu_op_free(luop); |
| 715 | } |
| 716 | return 0; |
| 717 | } |