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osmo-hlr/src/db_hlr.c

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/* (C) 2015-2023 by Harald Welte <laforge@gnumonks.org>
*
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#define _POSIX_C_SOURCE 200809L /* for strptime(3) */
/* These are needed as well due to the above _POSIX_C_SOURCE definition: */
#define _DEFAULT_SOURCE /* for struct timezone */
#define _XOPEN_SOURCE /* for clockid_t */
#include <string.h>
#include <errno.h>
#include <inttypes.h>
#include <time.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/timer.h>
#include <osmocom/crypt/auth.h>
#include <osmocom/gsm/gsm23003.h>
#include <sqlite3.h>
#include <osmocom/hlr/logging.h>
#include <osmocom/hlr/hlr.h>
#include <osmocom/hlr/db.h>
#include <osmocom/gsupclient/cni_peer_id.h>
#define LOGHLR(imsi, level, fmt, args ...) LOGP(DAUC, level, "IMSI='%s': " fmt, imsi, ## args)
/*! Add new subscriber record to the HLR database.
* \param[in,out] dbc database context.
* \param[in] imsi ASCII string of IMSI digits, is validated.
* \param[in] flags Bitmask of DB_SUBSCR_FLAG_*.
* \returns 0 on success, -EINVAL on invalid IMSI, -EEXIST if subscriber with
* provided imsi already exists, -EIO on other database errors.
*/
int db_subscr_create(struct db_context *dbc, const char *imsi, uint8_t flags)
{
sqlite3_stmt *stmt;
int rc;
if (!osmo_imsi_str_valid(imsi)) {
LOGP(DAUC, LOGL_ERROR, "Cannot create subscriber: invalid IMSI: '%s'\n",
imsi);
return -EINVAL;
}
stmt = dbc->stmt[DB_STMT_SUBSCR_CREATE];
if (!db_bind_text(stmt, "$imsi", imsi))
return -EIO;
if (!db_bind_int(stmt, "$nam_cs", (flags & DB_SUBSCR_FLAG_NAM_CS) != 0))
return -EIO;
if (!db_bind_int(stmt, "$nam_ps", (flags & DB_SUBSCR_FLAG_NAM_PS) != 0))
return -EIO;
/* execute the statement */
rc = sqlite3_step(stmt);
db_remove_reset(stmt);
if (rc != SQLITE_DONE) {
LOGHLR(imsi, LOGL_ERROR, "Cannot create subscriber: SQL error: (%d) %s\n",
rc, sqlite3_errmsg(dbc->db));
if (rc == SQLITE_CONSTRAINT_UNIQUE)
return -EEXIST;
return -EIO;
}
return 0;
}
/*! Completely delete a subscriber record from the HLR database.
* Also remove authentication data.
* Future todo: also drop from all other database tables, which aren't used yet
* at the time of writing this.
* \param[in,out] dbc database context.
* \param[in] subscr_id ID of the subscriber in the HLR db.
* \returns if the subscriber was found and removed, -EIO on database error,
* -ENOENT if no such subscriber data exists.
*/
int db_subscr_delete_by_id(struct db_context *dbc, int64_t subscr_id)
{
int rc;
struct sub_auth_data_str aud;
int ret = 0;
sqlite3_stmt *stmt = dbc->stmt[DB_STMT_DEL_BY_ID];
if (!db_bind_int64(stmt, "$subscriber_id", subscr_id))
return -EIO;
/* execute the statement */
rc = sqlite3_step(stmt);
if (rc != SQLITE_DONE) {
LOGP(DAUC, LOGL_ERROR,
"Cannot delete subscriber ID=%" PRId64 ": SQL error: (%d) %s\n",
subscr_id, rc, sqlite3_errmsg(dbc->db));
db_remove_reset(stmt);
return -EIO;
}
/* verify execution result */
rc = sqlite3_changes(dbc->db);
if (!rc) {
LOGP(DAUC, LOGL_ERROR, "Cannot delete: no such subscriber: ID=%" PRId64 "\n",
subscr_id);
ret = -ENOENT;
} else if (rc != 1) {
LOGP(DAUC, LOGL_ERROR, "Delete subscriber ID=%" PRId64
": SQL modified %d rows (expected 1)\n", subscr_id, rc);
ret = -EIO;
}
db_remove_reset(stmt);
/* make sure to remove authentication data for this subscriber id, for
* both 2G and 3G. */
aud = (struct sub_auth_data_str){
.type = OSMO_AUTH_TYPE_GSM,
.algo = OSMO_AUTH_ALG_NONE,
};
rc = db_subscr_update_aud_by_id(dbc, subscr_id, &aud);
if (ret == -ENOENT && !rc)
ret = 0;
aud = (struct sub_auth_data_str){
.type = OSMO_AUTH_TYPE_UMTS,
.algo = OSMO_AUTH_ALG_NONE,
};
rc = db_subscr_update_aud_by_id(dbc, subscr_id, &aud);
if (ret == -ENOENT && !rc)
ret = 0;
return ret;
}
/*! Set a subscriber's MSISDN in the HLR database.
* \param[in,out] dbc database context.
* \param[in] imsi ASCII string of IMSI digits
* \param[in] msisdn ASCII string of MSISDN digits, or NULL to remove the MSISDN.
* \returns 0 on success, -EINVAL in case of invalid MSISDN string, -EIO on
* database failure, -ENOENT if no such subscriber exists.
*/
int db_subscr_update_msisdn_by_imsi(struct db_context *dbc, const char *imsi,
const char *msisdn)
{
int rc;
int ret = 0;
if (msisdn && !osmo_msisdn_str_valid(msisdn)) {
LOGHLR(imsi, LOGL_ERROR,
"Cannot update subscriber: invalid MSISDN: '%s'\n",
msisdn);
return -EINVAL;
}
sqlite3_stmt *stmt = dbc->stmt[
msisdn ? DB_STMT_SET_MSISDN_BY_IMSI : DB_STMT_DELETE_MSISDN_BY_IMSI];
if (!db_bind_text(stmt, "$imsi", imsi))
return -EIO;
if (msisdn) {
if (!db_bind_text(stmt, "$msisdn", msisdn))
return -EIO;
}
/* execute the statement */
rc = sqlite3_step(stmt);
if (rc != SQLITE_DONE) {
LOGHLR(imsi, LOGL_ERROR,
"Cannot update subscriber's MSISDN: SQL error: (%d) %s\n",
rc, sqlite3_errmsg(dbc->db));
ret = -EIO;
goto out;
}
/* verify execution result */
rc = sqlite3_changes(dbc->db);
if (!rc) {
LOGP(DAUC, LOGL_ERROR, "Cannot update MSISDN: no such subscriber: IMSI='%s'\n",
imsi);
ret = -ENOENT;
goto out;
} else if (rc != 1) {
LOGHLR(imsi, LOGL_ERROR, "Update MSISDN: SQL modified %d rows (expected 1)\n", rc);
ret = -EIO;
}
out:
db_remove_reset(stmt);
return ret;
}
/*! Insert or update 2G or 3G authentication tokens in the database.
* If aud->type is OSMO_AUTH_TYPE_GSM, the auc_2g table entry for the
* subscriber will be added or modified; if aud->algo is OSMO_AUTH_ALG_NONE,
* however, the auc_2g entry for the subscriber is deleted. If aud->type is
* OSMO_AUTH_TYPE_UMTS, the auc_3g table is updated; again, if aud->algo is
* OSMO_AUTH_ALG_NONE, the auc_3g entry is deleted.
* \param[in,out] dbc database context.
* \param[in] subscr_id DB ID of the subscriber.
* \param[in] aud Pointer to new auth data (in ASCII string form).
* \returns 0 on success, -EINVAL for invalid aud, -ENOENT for unknown
* subscr_id, -EIO for database errors.
*/
int db_subscr_update_aud_by_id(struct db_context *dbc, int64_t subscr_id,
const struct sub_auth_data_str *aud)
{
sqlite3_stmt *stmt_del;
sqlite3_stmt *stmt_ins;
sqlite3_stmt *stmt;
const char *label;
int rc;
int ret = 0;
switch (aud->type) {
case OSMO_AUTH_TYPE_GSM:
label = "auc_2g";
stmt_del = dbc->stmt[DB_STMT_AUC_2G_DELETE];
stmt_ins = dbc->stmt[DB_STMT_AUC_2G_INSERT];
switch (aud->algo) {
case OSMO_AUTH_ALG_NONE:
case OSMO_AUTH_ALG_COMP128v1:
case OSMO_AUTH_ALG_COMP128v2:
case OSMO_AUTH_ALG_COMP128v3:
case OSMO_AUTH_ALG_XOR_2G:
break;
case OSMO_AUTH_ALG_XOR_3G:
case OSMO_AUTH_ALG_MILENAGE:
LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:"
" auth algo not suited for 2G: %s\n",
osmo_auth_alg_name(aud->algo));
return -EINVAL;
default:
LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:"
" Unknown auth algo: %d\n", aud->algo);
return -EINVAL;
}
if (aud->algo == OSMO_AUTH_ALG_NONE)
break;
if (!osmo_is_hexstr(aud->u.gsm.ki, 32, 32, true)) {
LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:"
" Invalid KI: '%s'\n", aud->u.gsm.ki);
return -EINVAL;
}
break;
case OSMO_AUTH_TYPE_UMTS:
label = "auc_3g";
stmt_del = dbc->stmt[DB_STMT_AUC_3G_DELETE];
stmt_ins = dbc->stmt[DB_STMT_AUC_3G_INSERT];
switch (aud->algo) {
case OSMO_AUTH_ALG_NONE:
case OSMO_AUTH_ALG_MILENAGE:
case OSMO_AUTH_ALG_XOR_3G:
break;
case OSMO_AUTH_ALG_COMP128v1:
case OSMO_AUTH_ALG_COMP128v2:
case OSMO_AUTH_ALG_COMP128v3:
case OSMO_AUTH_ALG_XOR_2G:
LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:"
" auth algo not suited for 3G: %s\n",
osmo_auth_alg_name(aud->algo));
return -EINVAL;
default:
LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:"
" Unknown auth algo: %d\n", aud->algo);
return -EINVAL;
}
if (aud->algo == OSMO_AUTH_ALG_NONE)
break;
if (!osmo_is_hexstr(aud->u.umts.k, 32, 64, true)) {
LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:"
" Invalid K: '%s'\n", aud->u.umts.k);
return -EINVAL;
}
if (!osmo_is_hexstr(aud->u.umts.opc, 32, 64, true)) {
LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:"
" Invalid OP/OPC: '%s'\n", aud->u.umts.opc);
return -EINVAL;
}
if (aud->u.umts.ind_bitlen > OSMO_MILENAGE_IND_BITLEN_MAX) {
LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:"
" Invalid ind_bitlen: %d\n", aud->u.umts.ind_bitlen);
return -EINVAL;
}
break;
default:
LOGP(DAUC, LOGL_ERROR, "Cannot update auth tokens:"
" unknown auth type: %d\n", aud->type);
return -EINVAL;
}
stmt = stmt_del;
if (!db_bind_int64(stmt, "$subscriber_id", subscr_id))
return -EIO;
/* execute the statement */
rc = sqlite3_step(stmt);
if (rc != SQLITE_DONE) {
LOGP(DAUC, LOGL_ERROR,
"Cannot delete %s row: SQL error: (%d) %s\n",
label, rc, sqlite3_errmsg(dbc->db));
ret = -EIO;
goto out;
}
/* verify execution result */
rc = sqlite3_changes(dbc->db);
if (!rc)
/* Leave "no such entry" logging to the caller -- during
* db_subscr_delete_by_id(), we call this to make sure it is
* empty, and no entry is not an error then.*/
ret = -ENOENT;
else if (rc != 1) {
LOGP(DAUC, LOGL_ERROR, "Delete subscriber ID=%" PRId64
" from %s: SQL modified %d rows (expected 1)\n",
subscr_id, label, rc);
ret = -EIO;
}
db_remove_reset(stmt);
/* Error situation? Return now. */
if (ret && ret != -ENOENT)
return ret;
/* Just delete requested? */
if (aud->algo == OSMO_AUTH_ALG_NONE)
return ret;
/* Don't return -ENOENT if inserting new data. */
ret = 0;
/* Insert new row */
stmt = stmt_ins;
if (!db_bind_int64(stmt, "$subscriber_id", subscr_id))
return -EIO;
switch (aud->type) {
case OSMO_AUTH_TYPE_GSM:
if (!db_bind_int(stmt, "$algo_id_2g", aud->algo))
return -EIO;
if (!db_bind_text(stmt, "$ki", aud->u.gsm.ki))
return -EIO;
break;
case OSMO_AUTH_TYPE_UMTS:
if (!db_bind_int(stmt, "$algo_id_3g", aud->algo))
return -EIO;
if (!db_bind_text(stmt, "$k", aud->u.umts.k))
return -EIO;
if (!db_bind_text(stmt, "$op",
aud->u.umts.opc_is_op ? aud->u.umts.opc : NULL))
return -EIO;
if (!db_bind_text(stmt, "$opc",
aud->u.umts.opc_is_op ? NULL : aud->u.umts.opc))
return -EIO;
if (!db_bind_int(stmt, "$ind_bitlen", aud->u.umts.ind_bitlen))
return -EIO;
break;
default:
OSMO_ASSERT(false);
}
/* execute the statement */
rc = sqlite3_step(stmt);
if (rc != SQLITE_DONE) {
LOGP(DAUC, LOGL_ERROR,
"Cannot insert %s row: SQL error: (%d) %s\n",
label, rc, sqlite3_errmsg(dbc->db));
ret = -EIO;
goto out;
}
out:
db_remove_reset(stmt);
return ret;
}
/*! Set a subscriber's IMEI in the HLR database.
* \param[in,out] dbc database context.
* \param[in] imsi ASCII string of IMSI digits
* \param[in] imei ASCII string of identifier digits, or NULL to remove the IMEI.
* \returns 0 on success, -ENOENT when the given subscriber does not exist,
* -EIO on database errors.
*/
int db_subscr_update_imei_by_imsi(struct db_context *dbc, const char* imsi, const char *imei)
{
int rc, ret = 0;
sqlite3_stmt *stmt = dbc->stmt[DB_STMT_UPD_IMEI_BY_IMSI];
if (imei && !osmo_imei_str_valid(imei, false)) {
LOGP(DAUC, LOGL_ERROR, "Cannot update subscriber IMSI='%s': invalid IMEI: '%s'\n", imsi, imei);
return -EINVAL;
}
if (!db_bind_text(stmt, "$imsi", imsi))
return -EIO;
if (imei && !db_bind_text(stmt, "$imei", imei))
return -EIO;
/* execute the statement */
rc = sqlite3_step(stmt);
if (rc != SQLITE_DONE) {
LOGP(DAUC, LOGL_ERROR, "Update IMEI for subscriber IMSI='%s': SQL Error: %s\n", imsi,
sqlite3_errmsg(dbc->db));
ret = -EIO;
goto out;
}
/* verify execution result */
rc = sqlite3_changes(dbc->db);
if (!rc) {
LOGP(DAUC, LOGL_ERROR, "Cannot update IMEI for subscriber IMSI='%s': no such subscriber\n", imsi);
ret = -ENOENT;
} else if (rc != 1) {
LOGP(DAUC, LOGL_ERROR, "Update IMEI for subscriber IMSI='%s': SQL modified %d rows (expected 1)\n",
imsi, rc);
ret = -EIO;
}
out:
db_remove_reset(stmt);
return ret;
}
static void parse_last_lu_seen(time_t *dst, const char *last_lu_seen_str, const char *imsi, const char *label)
{
struct tm tm = {0};
time_t val;
if (!last_lu_seen_str || last_lu_seen_str[0] == '\0')
return;
if (strptime(last_lu_seen_str, DB_LAST_LU_SEEN_FMT, &tm) == NULL) {
LOGP(DAUC, LOGL_ERROR, "IMSI-%s: Last LU Seen %s: Cannot parse timestamp '%s'\n",
imsi, label, last_lu_seen_str);
return;
}
errno = 0;
val = mktime(&tm);
if (val == -1) {
LOGP(DAUC, LOGL_ERROR, "IMSI-%s: Last LU Seen %s: Cannot convert timestamp '%s' to time_t: %s\n",
imsi, label, last_lu_seen_str, strerror(errno));
val = 0;
}
*dst = val;
}
/* Common code for db_subscr_get_by_*() functions. */
static int db_sel(struct db_context *dbc, sqlite3_stmt *stmt, struct hlr_subscriber *subscr,
const char **err)
{
int rc;
int ret = 0;
/* execute the statement */
rc = sqlite3_step(stmt);
if (rc == SQLITE_DONE) {
ret = -ENOENT;
goto out;
}
if (rc != SQLITE_ROW) {
ret = -EIO;
goto out;
}
if (!subscr)
goto out;
*subscr = (struct hlr_subscriber){};
/* obtain the various columns */
subscr->id = sqlite3_column_int64(stmt, 0);
copy_sqlite3_text_to_buf(subscr->imsi, stmt, 1);
copy_sqlite3_text_to_buf(subscr->msisdn, stmt, 2);
copy_sqlite3_text_to_buf(subscr->imei, stmt, 3);
/* FIXME: These should all be BLOBs as they might contain NUL */
copy_sqlite3_text_to_buf(subscr->vlr_number, stmt, 4);
copy_sqlite3_text_to_buf(subscr->sgsn_number, stmt, 5);
copy_sqlite3_text_to_buf(subscr->sgsn_address, stmt, 6);
subscr->periodic_lu_timer = sqlite3_column_int(stmt, 7);
subscr->periodic_rau_tau_timer = sqlite3_column_int(stmt, 8);
subscr->nam_cs = sqlite3_column_int(stmt, 9);
subscr->nam_ps = sqlite3_column_int(stmt, 10);
subscr->lmsi = sqlite3_column_int(stmt, 11);
subscr->ms_purged_cs = sqlite3_column_int(stmt, 12);
subscr->ms_purged_ps = sqlite3_column_int(stmt, 13);
parse_last_lu_seen(&subscr->last_lu_seen, (const char *)sqlite3_column_text(stmt, 14),
subscr->imsi, "CS");
parse_last_lu_seen(&subscr->last_lu_seen_ps, (const char *)sqlite3_column_text(stmt, 15),
subscr->imsi, "PS");
copy_sqlite3_text_to_ipa_name(&subscr->vlr_via_proxy, stmt, 16);
copy_sqlite3_text_to_ipa_name(&subscr->sgsn_via_proxy, stmt, 17);
out:
db_remove_reset(stmt);
switch (ret) {
case 0:
*err = NULL;
break;
case -ENOENT:
*err = "No such subscriber";
break;
default:
*err = sqlite3_errmsg(dbc->db);
break;
}
return ret;
}
/*! Check if a subscriber exists in the HLR database.
* \param[in, out] dbc database context.
* \param[in] imsi ASCII string of IMSI digits.
* \returns 0 if it exists, -ENOENT if it does not exist, -EIO on database error.
*/
int db_subscr_exists_by_imsi(struct db_context *dbc, const char *imsi) {
sqlite3_stmt *stmt = dbc->stmt[DB_STMT_EXISTS_BY_IMSI];
const char *err;
int rc;
if (!db_bind_text(stmt, NULL, imsi))
return -EIO;
rc = sqlite3_step(stmt);
db_remove_reset(stmt);
if (rc == SQLITE_ROW)
return 0; /* exists */
if (rc == SQLITE_DONE)
return -ENOENT; /* does not exist */
err = sqlite3_errmsg(dbc->db);
LOGP(DAUC, LOGL_ERROR, "Failed to check if subscriber exists by IMSI='%s': %s\n", imsi, err);
return rc;
}
/*! Retrieve subscriber data from the HLR database.
* \param[in,out] dbc database context.
* \param[in] imsi ASCII string of IMSI digits.
* \param[out] subscr place retrieved data in this struct.
* \returns 0 on success, -ENOENT if no such subscriber was found, -EIO on
* database error.
*/
int db_subscr_get_by_imsi(struct db_context *dbc, const char *imsi,
struct hlr_subscriber *subscr)
{
sqlite3_stmt *stmt = dbc->stmt[DB_STMT_SEL_BY_IMSI];
const char *err;
int rc;
if (!db_bind_text(stmt, NULL, imsi))
return -EIO;
rc = db_sel(dbc, stmt, subscr, &err);
if (rc && rc != -ENOENT)
LOGP(DAUC, LOGL_ERROR, "Cannot read subscriber from db: IMSI='%s': %s\n",
imsi, err);
return rc;
}
/*! Check if a subscriber exists in the HLR database.
* \param[in, out] dbc database context.
* \param[in] msisdn ASCII string of MSISDN digits.
* \returns 0 if it exists, -ENOENT if it does not exist, -EIO on database error.
*/
int db_subscr_exists_by_msisdn(struct db_context *dbc, const char *msisdn)
{
sqlite3_stmt *stmt = dbc->stmt[DB_STMT_EXISTS_BY_MSISDN];
const char *err;
int rc;
if (!db_bind_text(stmt, NULL, msisdn))
return -EIO;
rc = sqlite3_step(stmt);
db_remove_reset(stmt);
if (rc == SQLITE_ROW)
return 0; /* exists */
if (rc == SQLITE_DONE)
return -ENOENT; /* does not exist */
err = sqlite3_errmsg(dbc->db);
LOGP(DAUC, LOGL_ERROR, "Failed to check if subscriber exists "
"by MSISDN='%s': %s\n", msisdn, err);
return rc;
}
/*! Retrieve subscriber data from the HLR database.
* \param[in,out] dbc database context.
* \param[in] msisdn ASCII string of MSISDN digits.
* \param[out] subscr place retrieved data in this struct.
* \returns 0 on success, -ENOENT if no such subscriber was found, -EIO on
* database error.
*/
int db_subscr_get_by_msisdn(struct db_context *dbc, const char *msisdn,
struct hlr_subscriber *subscr)
{
sqlite3_stmt *stmt = dbc->stmt[DB_STMT_SEL_BY_MSISDN];
const char *err;
int rc;
if (!db_bind_text(stmt, NULL, msisdn))
return -EIO;
rc = db_sel(dbc, stmt, subscr, &err);
if (rc && rc != -ENOENT)
LOGP(DAUC, LOGL_ERROR, "Cannot read subscriber from db: MSISDN='%s': %s\n",
msisdn, err);
return rc;
}
/*! Retrieve subscriber data from the HLR database.
* \param[in,out] dbc database context.
* \param[in] filter_type ASCII string of identifier type to search.
* \param[in] filter ASCII string to search.
* \param[in] get_cb pointer to call back function for data.
* \param[in,out] data pointer to pass to callback function.
* \param[in,out] count counter for number of matched subscribers.
* \param[in,our] err
* \returns 0 on success, -ENOENT if no subscriber was found, -EIO on
* database error.
*/
int db_subscrs_get(struct db_context *dbc, const char *filter_type, const char *filter,
void (*get_cb)(struct hlr_subscriber *subscr, void *data), void *data,
int *count, const char **err)
{
sqlite3_stmt *stmt;
char search[256];
int rc;
struct hlr_subscriber subscr;
bool show_ls = false;
if (!filter_type) {
stmt = dbc->stmt[DB_STMT_SEL_ALL];
} else if (strcmp(filter_type, "imei") == 0) {
stmt = dbc->stmt[DB_STMT_SEL_FILTER_IMEI];
} else if (strcmp(filter_type, "imsi") == 0) {
stmt = dbc->stmt[DB_STMT_SEL_FILTER_IMSI];
} else if (strcmp(filter_type, "msisdn") == 0) {
stmt = dbc->stmt[DB_STMT_SEL_FILTER_MSISDN];
} else if (strcmp(filter_type, "cs") == 0) {
stmt = dbc->stmt[DB_STMT_SEL_FILTER_CS];
} else if (strcmp(filter_type, "ps") == 0) {
stmt = dbc->stmt[DB_STMT_SEL_FILTER_PS];
} else if (strcmp(filter_type, "last_lu_seen") == 0) {
show_ls = true;
stmt = dbc->stmt[DB_STMT_SEL_ALL_ORDER_LAST_SEEN];
} else {
return -EIO;
}
if (filter_type && filter && strcmp(filter_type, "last_lu_seen") != 0) {
if (strcmp(filter, "on") == 0) {
sprintf(search, "%s", "1");
} else if (strcmp(filter, "off") == 0) {
sprintf(search, "%s", "0");
} else {
sprintf(search, "%%%s%%", filter);
}
if (!db_bind_text(stmt, "$search", search)) {
*err = sqlite3_errmsg(dbc->db);
return -EIO;
}
}
rc = sqlite3_step(stmt);
if (rc == SQLITE_DONE) {
db_remove_reset(stmt);
*err = "No matching subscriber(s)";
return -ENOENT;
}
while (rc == SQLITE_ROW) {
subscr = (struct hlr_subscriber){
.id = sqlite3_column_int64(stmt, 0),};
copy_sqlite3_text_to_buf(subscr.imsi, stmt, 1);
copy_sqlite3_text_to_buf(subscr.msisdn, stmt, 2);
copy_sqlite3_text_to_buf(subscr.imei, stmt, 3);
subscr.nam_cs = sqlite3_column_int(stmt, 9);
subscr.nam_ps = sqlite3_column_int(stmt, 10);
if (show_ls)
parse_last_lu_seen(&subscr.last_lu_seen, (const char *)sqlite3_column_text(stmt, 14),
subscr.imsi, "CS");
get_cb(&subscr, data);
rc = sqlite3_step(stmt);
(*count)++;
}
db_remove_reset(stmt);
if (rc != SQLITE_DONE) {
*err = sqlite3_errmsg(dbc->db);
LOGP(DAUC, LOGL_ERROR, "Cannot read subscribers from db:: %s\n", *err);
return rc;
}
*err = NULL;
return 0;
}
/*! Retrieve subscriber data from the HLR database.
* \param[in,out] dbc database context.
* \param[in] id ID of the subscriber in the HLR db.
* \param[out] subscr place retrieved data in this struct.
* \returns 0 on success, -ENOENT if no such subscriber was found, -EIO on
* database error.
*/
int db_subscr_get_by_id(struct db_context *dbc, int64_t id,
struct hlr_subscriber *subscr)
{
sqlite3_stmt *stmt = dbc->stmt[DB_STMT_SEL_BY_ID];
const char *err;
int rc;
if (!db_bind_int64(stmt, NULL, id))
return -EIO;
rc = db_sel(dbc, stmt, subscr, &err);
if (rc && rc != -ENOENT)
LOGP(DAUC, LOGL_ERROR, "Cannot read subscriber from db: ID=%" PRId64 ": %s\n",
id, err);
return rc;
}
/*! Retrieve subscriber data from the HLR database.
* \param[in,out] dbc database context.
* \param[in] imei ASCII string of identifier digits
* \param[out] subscr place retrieved data in this struct.
* \returns 0 on success, -ENOENT if no such subscriber was found, -EIO on
* database error.
*/
int db_subscr_get_by_imei(struct db_context *dbc, const char *imei, struct hlr_subscriber *subscr)
{
sqlite3_stmt *stmt = dbc->stmt[DB_STMT_SEL_BY_IMEI];
const char *err;
int rc;
if (!db_bind_text(stmt, NULL, imei))
return -EIO;
rc = db_sel(dbc, stmt, subscr, &err);
if (rc && rc != -ENOENT)
LOGP(DAUC, LOGL_ERROR, "Cannot read subscriber from db: IMEI=%s: %s\n", imei, err);
return rc;
}
/*! You should use hlr_subscr_nam() instead; enable or disable PS or CS for a
* subscriber without notifying GSUP clients.
* \param[in,out] dbc database context.
* \param[in] imsi ASCII string of IMSI digits.
* \param[in] nam_val True to enable CS/PS, false to disable.
* \param[in] is_ps when true, set nam_ps, else set nam_cs.
* \returns 0 on success, -ENOENT when the given IMSI does not exist, -EIO on
* database errors.
*/
int db_subscr_nam(struct db_context *dbc, const char *imsi, bool nam_val, bool is_ps)
{
sqlite3_stmt *stmt;
int rc;
int ret = 0;
stmt = dbc->stmt[is_ps ? DB_STMT_UPD_NAM_PS_BY_IMSI
: DB_STMT_UPD_NAM_CS_BY_IMSI];
if (!db_bind_text(stmt, "$imsi", imsi))
return -EIO;
if (!db_bind_int(stmt, "$val", nam_val ? 1 : 0))
return -EIO;
/* execute the statement */
rc = sqlite3_step(stmt);
if (rc != SQLITE_DONE) {
LOGHLR(imsi, LOGL_ERROR, "%s %s: SQL error: %s\n",
nam_val ? "enable" : "disable",
is_ps ? "PS" : "CS",
sqlite3_errmsg(dbc->db));
ret = -EIO;
goto out;
}
/* verify execution result */
rc = sqlite3_changes(dbc->db);
if (!rc) {
LOGP(DAUC, LOGL_ERROR, "Cannot %s %s: no such subscriber: IMSI='%s'\n",
nam_val ? "enable" : "disable",
is_ps ? "PS" : "CS",
imsi);
ret = -ENOENT;
goto out;
} else if (rc != 1) {
LOGHLR(imsi, LOGL_ERROR, "%s %s: SQL modified %d rows (expected 1)\n",
nam_val ? "enable" : "disable",
is_ps ? "PS" : "CS",
rc);
ret = -EIO;
}
out:
db_remove_reset(stmt);
return ret;
}
/*! Record a Location Updating in the database.
* \param[in,out] dbc database context.
* \param[in] subscr_id ID of the subscriber in the HLR db.
* \param[in] vlr_or_sgsn_number ASCII string of identifier digits.
* \param[in] is_ps when true, set sgsn_number, else set vlr_number.
* \returns 0 on success, -ENOENT when the given subscriber does not exist,
* -EIO on database errors.
*/
int db_subscr_lu(struct db_context *dbc, int64_t subscr_id,
const struct osmo_ipa_name *vlr_name, bool is_ps,
const struct osmo_ipa_name *via_proxy)
{
sqlite3_stmt *stmt;
int rc, ret = 0;
struct timespec localtime;
stmt = dbc->stmt[is_ps ? DB_STMT_UPD_SGSN_BY_ID
: DB_STMT_UPD_VLR_BY_ID];
if (!db_bind_int64(stmt, "$subscriber_id", subscr_id))
return -EIO;
if (!db_bind_text(stmt, "$number", (char*)vlr_name->val))
return -EIO;
if (via_proxy && via_proxy->len) {
if (!db_bind_text(stmt, "$proxy", (char*)via_proxy->val))
return -EIO;
} else {
if (!db_bind_null(stmt, "$proxy"))
return -EIO;
}
/* execute the statement */
rc = sqlite3_step(stmt);
if (rc != SQLITE_DONE) {
LOGP(DAUC, LOGL_ERROR, "Update %s number for subscriber ID=%" PRId64 ": SQL Error: %s\n",
is_ps? "SGSN" : "VLR", subscr_id, sqlite3_errmsg(dbc->db));
ret = -EIO;
goto out;
}
/* verify execution result */
rc = sqlite3_changes(dbc->db);
if (!rc) {
LOGP(DAUC, LOGL_ERROR, "Cannot update %s number for subscriber ID=%" PRId64
": no such subscriber\n",
is_ps? "SGSN" : "VLR", subscr_id);
ret = -ENOENT;
goto out;
} else if (rc != 1) {
LOGP(DAUC, LOGL_ERROR, "Update %s number for subscriber ID=%" PRId64
": SQL modified %d rows (expected 1)\n",
is_ps? "SGSN" : "VLR", subscr_id, rc);
ret = -EIO;
goto out;
}
db_remove_reset(stmt);
if (osmo_clock_gettime(CLOCK_REALTIME, &localtime) != 0) {
LOGP(DAUC, LOGL_ERROR, "Cannot get the current time: (%d) %s\n", errno, strerror(errno));
ret = -errno;
goto out;
}
stmt = dbc->stmt[is_ps? DB_STMT_SET_LAST_LU_SEEN_PS : DB_STMT_SET_LAST_LU_SEEN];
if (!db_bind_int64(stmt, "$subscriber_id", subscr_id))
return -EIO;
/* The timestamp will be converted to UTC by SQLite. */
if (!db_bind_int64(stmt, "$val", (int64_t)localtime.tv_sec)) {
ret = -EIO;
goto out;
}
rc = sqlite3_step(stmt);
if (rc != SQLITE_DONE) {
LOGP(DAUC, LOGL_ERROR,
"Cannot update LU timestamp for subscriber ID=%" PRId64 ": SQL error: (%d) %s\n",
subscr_id, rc, sqlite3_errmsg(dbc->db));
ret = -EIO;
goto out;
}
/* verify execution result */
rc = sqlite3_changes(dbc->db);
if (!rc) {
LOGP(DAUC, LOGL_ERROR, "Cannot update LU timestamp for subscriber ID=%" PRId64
": no such subscriber\n", subscr_id);
ret = -ENOENT;
goto out;
} else if (rc != 1) {
LOGP(DAUC, LOGL_ERROR, "Update LU timestamp for subscriber ID=%" PRId64
": SQL modified %d rows (expected 1)\n", subscr_id, rc);
ret = -EIO;
}
out:
db_remove_reset(stmt);
return ret;
}
/*! Set the ms_purged_cs or ms_purged_ps values in the database.
* \param[in,out] dbc database context.
* \param[in] by_imsi ASCII string of IMSI digits.
* \param[in] purge_val true to purge, false to un-purge.
* \param[in] is_ps when true, set ms_purged_ps, else set ms_purged_cs.
* \returns 0 on success, -ENOENT when the given IMSI does not exist, -EIO on
* database errors.
*/
int db_subscr_purge(struct db_context *dbc, const char *by_imsi,
bool purge_val, bool is_ps)
{
sqlite3_stmt *stmt;
int rc, ret = 0;
stmt = dbc->stmt[is_ps ? DB_STMT_UPD_PURGE_PS_BY_IMSI
: DB_STMT_UPD_PURGE_CS_BY_IMSI];
if (!db_bind_text(stmt, "$imsi", by_imsi))
return -EIO;
if (!db_bind_int(stmt, "$val", purge_val ? 1 : 0))
return -EIO;
/* execute the statement */
rc = sqlite3_step(stmt);
if (rc != SQLITE_DONE) {
LOGP(DAUC, LOGL_ERROR, "%s %s: SQL error: %s\n",
purge_val ? "purge" : "un-purge",
is_ps ? "PS" : "CS",
sqlite3_errmsg(dbc->db));
ret = -EIO;
goto out;
}
/* verify execution result */
rc = sqlite3_changes(dbc->db);
if (!rc) {
LOGP(DAUC, LOGL_ERROR, "Cannot %s %s: no such subscriber: IMSI='%s'\n",
purge_val ? "purge" : "un-purge",
is_ps ? "PS" : "CS",
by_imsi);
ret = -ENOENT;
goto out;
} else if (rc != 1) {
LOGHLR(by_imsi, LOGL_ERROR, "%s %s: SQL modified %d rows (expected 1)\n",
purge_val ? "purge" : "un-purge",
is_ps ? "PS" : "CS",
rc);
ret = -EIO;
}
out:
db_remove_reset(stmt);
return ret;
}
static int _db_ind_run(struct db_context *dbc, sqlite3_stmt *stmt, const char *vlr, bool reset)
{
int rc;
if (!db_bind_text(stmt, "$vlr", vlr))
return -EIO;
/* execute the statement */
rc = sqlite3_step(stmt);
if (reset)
db_remove_reset(stmt);
return rc;
}
static int _db_ind_add(struct db_context *dbc, const char *vlr)
{
sqlite3_stmt *stmt = dbc->stmt[DB_STMT_IND_ADD];
if (_db_ind_run(dbc, stmt, vlr, true) != SQLITE_DONE) {
LOGP(DDB, LOGL_ERROR, "Cannot create IND entry for %s\n", osmo_quote_str_c(OTC_SELECT, vlr, -1));
return -EIO;
}
return 0;
}
static int _db_ind_del(struct db_context *dbc, const char *vlr)
{
sqlite3_stmt *stmt = dbc->stmt[DB_STMT_IND_DEL];
_db_ind_run(dbc, stmt, vlr, true);
/* We don't really care about the result. If it didn't exist, then that was the goal anyway. */
return 0;
}
static int _db_ind_get(struct db_context *dbc, const char *vlr, unsigned int *ind)
{
int ret = 0;
sqlite3_stmt *stmt = dbc->stmt[DB_STMT_IND_SELECT];
int rc = _db_ind_run(dbc, stmt, vlr, false);
if (rc == SQLITE_DONE) {
/* Does not exist yet */
ret = -ENOENT;
goto out;
} else if (rc != SQLITE_ROW) {
LOGP(DDB, LOGL_ERROR, "Error executing SQL: %d\n", rc);
ret = -EIO;
goto out;
}
OSMO_ASSERT(ind);
*ind = sqlite3_column_int64(stmt, 0);
out:
db_remove_reset(stmt);
return ret;
}
int _db_ind(struct db_context *dbc, const struct osmo_cni_peer_id *vlr,
unsigned int *ind, bool del)
{
const char *vlr_name = NULL;
int rc;
switch (vlr->type) {
case OSMO_CNI_PEER_ID_IPA_NAME:
if (vlr->ipa_name.len < 2 || vlr->ipa_name.val[vlr->ipa_name.len - 1] != '\0') {
LOGP(DDB, LOGL_ERROR, "Expecting VLR ipa_name to be zero terminated; found %s\n",
osmo_ipa_name_to_str(&vlr->ipa_name));
return -ENOTSUP;
}
vlr_name = (const char*)vlr->ipa_name.val;
break;
default:
LOGP(DDB, LOGL_ERROR, "Unsupported osmo_cni_peer_id type: %s\n",
osmo_cni_peer_id_type_name(vlr->type));
return -ENOTSUP;
}
if (del)
return _db_ind_del(dbc, vlr_name);
rc = _db_ind_get(dbc, vlr_name, ind);
if (!rc)
return 0;
/* Does not exist yet, create. */
rc = _db_ind_add(dbc, vlr_name);
if (rc) {
LOGP(DDB, LOGL_ERROR, "Error creating IND entry for %s\n", osmo_quote_str_c(OTC_SELECT, vlr_name, -1));
return rc;
}
/* To be sure, query again from scratch. */
return _db_ind_get(dbc, vlr_name, ind);
}
int db_ind(struct db_context *dbc, const struct osmo_cni_peer_id *vlr, unsigned int *ind)
{
return _db_ind(dbc, vlr, ind, false);
}
int db_ind_del(struct db_context *dbc, const struct osmo_cni_peer_id *vlr)
{
return _db_ind(dbc, vlr, NULL, true);
}
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