diff options
Diffstat (limited to 'src/host/layer23/src/mobile/subscriber.c')
| -rw-r--r-- | src/host/layer23/src/mobile/subscriber.c | 33 |
1 files changed, 15 insertions, 18 deletions
diff --git a/src/host/layer23/src/mobile/subscriber.c b/src/host/layer23/src/mobile/subscriber.c index fa59d9fa..ba3c3281 100644 --- a/src/host/layer23/src/mobile/subscriber.c +++ b/src/host/layer23/src/mobile/subscriber.c @@ -24,7 +24,7 @@ #include <string.h> #include <arpa/inet.h> #include <osmocom/core/talloc.h> -#include <osmocom/gsm/comp128.h> +#include <osmocom/crypt/auth.h> #include <osmocom/bb/common/logging.h> #include <osmocom/bb/common/osmocom_data.h> @@ -81,16 +81,6 @@ static char *sim_decode_bcd(uint8_t *data, uint8_t length) return result; } -static void xor96(uint8_t *ki, uint8_t *rand, uint8_t *sres, uint8_t *kc) -{ - int i; - - for (i=0; i < 4; i++) - sres[i] = rand[i] ^ ki[i]; - for (i=0; i < 8; i++) - kc[i] = rand[i] ^ ki[i+4]; -} - /* * init/exit */ @@ -262,7 +252,7 @@ static int subscr_sim_imsi(struct osmocom_ms *ms, uint8_t *data, /* decode IMSI, skip first digit (parity) */ imsi = sim_decode_bcd(data + 1, length); if (strlen(imsi) - 1 > GSM_IMSI_LENGTH - 1 || strlen(imsi) - 1 < 6) { - LOGP(DMM, LOGL_NOTICE, "IMSI invalid length = %d\n", + LOGP(DMM, LOGL_NOTICE, "IMSI invalid length = %zu\n", strlen(imsi) - 1); return -EINVAL; } @@ -940,22 +930,29 @@ int gsm_subscr_generate_kc(struct osmocom_ms *ms, uint8_t key_seq, /* test SIM */ if (subscr->sim_type == GSM_SIM_TYPE_TEST) { struct gsm48_mm_event *nmme; - uint8_t sres[4]; struct gsm_settings *set = &ms->settings; + static struct osmo_sub_auth_data auth = { + .type = OSMO_AUTH_TYPE_GSM + }; + struct osmo_auth_vector _vec; + struct osmo_auth_vector *vec = &_vec; + + auth.algo = set->test_ki_type; + memcpy(auth.u.gsm.ki, set->test_ki, sizeof(auth.u.gsm.ki)); + int ret = osmo_auth_gen_vec(vec, &auth, rand); + if (ret < 0) + return ret; - if (set->test_ki_type == GSM_SIM_KEY_COMP128) - comp128(set->test_ki, rand, sres, subscr->key); - else - xor96(set->test_ki, rand, sres, subscr->key); /* store sequence */ subscr->key_seq = key_seq; + memcpy(subscr->key, vec->kc, 8); LOGP(DMM, LOGL_INFO, "Sending authentication response\n"); nmsg = gsm48_mmevent_msgb_alloc(GSM48_MM_EVENT_AUTH_RESPONSE); if (!nmsg) return -ENOMEM; nmme = (struct gsm48_mm_event *) nmsg->data; - memcpy(nmme->sres, sres, 4); + memcpy(nmme->sres, vec->sres, 4); gsm48_mmevent_msg(ms, nmsg); return 0; |