diff options
| author | Daniel Willmann <dwillmann@sysmocom.de> | 2016-05-21 00:31:12 +0200 |
|---|---|---|
| committer | Neels Hofmeyr <nhofmeyr@sysmocom.de> | 2016-09-02 04:28:16 +0200 |
| commit | 770f3e32e00f70c668e9981e1b17c1f6c4d4ac06 (patch) | |
| tree | affd1285ac376727cad25c46f3b0bdd9e4e24b76 | |
| parent | 7bc6986f6babdaf5f2436dae2f603ae5823aa7b4 (diff) | |
IuPS: dev hack: init hardcoded Ki on ATT REQ
DEVELOPMENT HACK: Our current HLR does not support 3G authentication tokens. A
new HLR/VLR implementation is being developed. Until it is ready and actual
milenage authentication is properly supported, we are hardcoding a fixed Ki and
use 2G auth.
Change-Id: Ieca45960fa941a3a706c6e479b04b9f2ef89d860
| -rw-r--r-- | openbsc/src/gprs/gprs_gmm.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/openbsc/src/gprs/gprs_gmm.c b/openbsc/src/gprs/gprs_gmm.c index 8b8bdd1d2..7d00bd5bc 100644 --- a/openbsc/src/gprs/gprs_gmm.c +++ b/openbsc/src/gprs/gprs_gmm.c @@ -42,6 +42,7 @@ #include <osmocom/core/signal.h> #include <osmocom/core/talloc.h> #include <osmocom/core/rate_ctr.h> +#include <osmocom/crypt/auth.h> #include <osmocom/gsm/apn.h> #include <osmocom/gsm/protocol/gsm_04_08_gprs.h> @@ -1039,6 +1040,34 @@ static int gsm48_rx_gmm_att_req(struct sgsn_mm_ctx *ctx, struct msgb *msg, ctx->ra = ra_id; if (ctx->ran_type == MM_CTX_T_GERAN_Gb) ctx->gb.cell_id = cid; + else if (ctx->ran_type == MM_CTX_T_UTRAN_Iu) { + /* DEVELOPMENT HACK: Our current HLR does not support 3G + * authentication tokens. A new HLR/VLR implementation is being + * developed. Until it is ready and actual milenage + * authentication is properly supported, we are hardcoding a + * fixed Ki and use 2G auth. */ + unsigned char tmp_rand[16]; + /* Ki 000102030405060708090a0b0c0d0e0f */ + struct osmo_sub_auth_data auth = { + .type = OSMO_AUTH_TYPE_GSM, + .algo = OSMO_AUTH_ALG_COMP128v1, + .u.gsm.ki = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, + 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, + 0x0e, 0x0f + }, + }; + /* XXX: Hack to make 3G auth work with special SIM card */ + ctx->auth_state = SGSN_AUTH_AUTHENTICATE; + + RAND_bytes(tmp_rand, 16); + + memset(&ctx->auth_triplet.vec, 0, sizeof(ctx->auth_triplet.vec)); + osmo_auth_gen_vec(&ctx->auth_triplet.vec, &auth, tmp_rand); + + ctx->auth_triplet.key_seq = 0; + } + /* Update MM Context with other data */ ctx->drx_parms = drx_par; ctx->ms_radio_access_capa.len = ms_ra_acc_cap_len; |