aboutsummaryrefslogtreecommitdiffstats
path: root/src/db_auc.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/db_auc.c')
-rw-r--r--src/db_auc.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/src/db_auc.c b/src/db_auc.c
index ac81404..8a369b5 100644
--- a/src/db_auc.c
+++ b/src/db_auc.c
@@ -159,6 +159,7 @@ int db_get_auth_data(struct db_context *dbc, const char *imsi,
aud3g->u.umts.opc_is_op = 1;
}
aud3g->u.umts.sqn = sqlite3_column_int64(stmt, 7);
+ aud3g->u.umts.ind_bitlen = sqlite3_column_int(stmt, 8);
/* FIXME: amf? */
aud3g->type = OSMO_AUTH_TYPE_UMTS;
} else
@@ -186,8 +187,9 @@ out:
/* return -1 in case of error, 0 for unknown imsi, positive for number
* of vectors generated */
int db_get_auc(struct db_context *dbc, const char *imsi,
- struct osmo_auth_vector *vec, unsigned int num_vec,
- const uint8_t *rand_auts, const uint8_t *auts)
+ unsigned int auc_3g_ind, struct osmo_auth_vector *vec,
+ unsigned int num_vec, const uint8_t *rand_auts,
+ const uint8_t *auts)
{
struct osmo_sub_auth_data aud2g, aud3g;
uint64_t subscr_id;
@@ -198,6 +200,16 @@ int db_get_auc(struct db_context *dbc, const char *imsi,
if (rc <= 0)
return rc;
+ aud3g.u.umts.ind = auc_3g_ind;
+ if (aud3g.type == OSMO_AUTH_TYPE_UMTS
+ && aud3g.u.umts.ind >= (1U << aud3g.u.umts.ind_bitlen)) {
+ LOGAUC(imsi, LOGL_NOTICE, "3G auth: SQN's IND bitlen %u is"
+ " too small to hold an index of %u. Truncating. This"
+ " may cause numerous additional AUTS resyncing.\n",
+ aud3g.u.umts.ind_bitlen, aud3g.u.umts.ind);
+ aud3g.u.umts.ind &= (1U << aud3g.u.umts.ind_bitlen) - 1;
+ }
+
LOGAUC(imsi, LOGL_DEBUG, "Calling to generate %u vectors\n", num_vec);
rc = auc_compute_vectors(vec, num_vec, &aud2g, &aud3g, rand_auts, auts);
if (rc < 0) {