diff options
Diffstat (limited to 'src/gprs/gprs_gmm.c')
| -rw-r--r-- | src/gprs/gprs_gmm.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/src/gprs/gprs_gmm.c b/src/gprs/gprs_gmm.c index f07b806f3..ead958eea 100644 --- a/src/gprs/gprs_gmm.c +++ b/src/gprs/gprs_gmm.c @@ -31,8 +31,6 @@ #include <arpa/inet.h> #include <netdb.h> -#include <openssl/rand.h> - #include "bscconfig.h" #include <osmocom/core/msgb.h> @@ -587,6 +585,7 @@ static int gsm48_tx_gmm_auth_ciph_req(struct sgsn_mm_ctx *mm, struct gsm48_hdr *gh; struct gsm48_auth_ciph_req *acreq; uint8_t *m_rand, *m_cksn, rbyte; + int rc; LOGMMCTXP(LOGL_INFO, mm, "<- GPRS AUTH AND CIPHERING REQ (rand = %s", osmo_hexdump(vec->rand, sizeof(vec->rand))); @@ -610,12 +609,13 @@ static int gsm48_tx_gmm_auth_ciph_req(struct sgsn_mm_ctx *mm, /* § 10.5.5.7: */ acreq->force_stby = force_standby; /* 3GPP TS 24.008 § 10.5.5.19: */ - if (RAND_bytes(&rbyte, 1) != 1) { - LOGP(DMM, LOGL_NOTICE, "RAND_bytes failed for A&C ref, falling " - "back to rand()\n"); - acreq->ac_ref_nr = rand(); - } else - acreq->ac_ref_nr = rbyte; + rc = osmo_get_rand_id(&rbyte, 1); + if (rc < 0) { + LOGP(DMM, LOGL_ERROR, "osmo_get_rand_id() failed for A&C ref: %s\n", strerror(-rc)); + return rc; + } + + acreq->ac_ref_nr = rbyte; mm->ac_ref_nr_used = acreq->ac_ref_nr; /* Only if authentication is requested we need to set RAND + CKSN */ @@ -2086,6 +2086,7 @@ static void mmctx_timer_cb(void *_mm) { struct sgsn_mm_ctx *mm = _mm; struct gsm_auth_tuple *at; + int rc; mm->num_T_exp++; @@ -2130,8 +2131,11 @@ static void mmctx_timer_cb(void *_mm) } at = &mm->auth_triplet; - gsm48_tx_gmm_auth_ciph_req(mm, &at->vec, at->key_seq, false); - osmo_timer_schedule(&mm->timer, sgsn->cfg.timers.T3360, 0); + rc = gsm48_tx_gmm_auth_ciph_req(mm, &at->vec, at->key_seq, false); + if (rc < 0) + LOGMMCTXP(LOGL_ERROR, mm, "failed sending Auth. & Ciph. Reuqest: %s \n", strerror(-rc)); + else + osmo_timer_schedule(&mm->timer, sgsn->cfg.timers.T3360, 0); break; case 3370: /* waiting for IDENTITY RESPONSE */ if (mm->num_T_exp >= 5) { |