diff options
Diffstat (limited to 'openbsc/src/gprs/gprs_gb_parse.c')
| -rw-r--r-- | openbsc/src/gprs/gprs_gb_parse.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/openbsc/src/gprs/gprs_gb_parse.c b/openbsc/src/gprs/gprs_gb_parse.c index 609685407..63ac9028d 100644 --- a/openbsc/src/gprs/gprs_gb_parse.c +++ b/openbsc/src/gprs/gprs_gb_parse.c @@ -329,17 +329,20 @@ int gprs_gb_parse_dtap(uint8_t *data, size_t data_len, struct gprs_gb_parse_context *parse_ctx) { struct gsm48_hdr *g48h; + uint8_t pdisc; + uint8_t msg_type; if (gprs_shift_v_fixed(&data, &data_len, sizeof(*g48h), (uint8_t **)&g48h) <= 0) return 0; parse_ctx->g48_hdr = g48h; - if ((g48h->proto_discr & 0x0f) != GSM48_PDISC_MM_GPRS && - (g48h->proto_discr & 0x0f) != GSM48_PDISC_SM_GPRS) + pdisc = gsm48_hdr_pdisc(g48h); + if (pdisc != GSM48_PDISC_MM_GPRS && pdisc != GSM48_PDISC_SM_GPRS) return 1; - switch (g48h->msg_type) { + msg_type = gsm48_hdr_msg_type(g48h); + switch (msg_type) { case GSM48_MT_GMM_ATTACH_REQ: return gprs_gb_parse_gmm_attach_req(data, data_len, parse_ctx); @@ -376,6 +379,10 @@ int gprs_gb_parse_dtap(uint8_t *data, size_t data_len, break; default: + LOGP(DLLC, LOGL_NOTICE, + "Unknown GSM 04.08 message type 0x%02hhx for protocol" + " discriminator 0x%02hhx.\n", + msg_type, pdisc); break; }; |