diff options
| author | Holger Hans Peter Freyther <zecke@selfish.org> | 2011-04-13 18:56:13 +0200 |
|---|---|---|
| committer | Holger Hans Peter Freyther <zecke@selfish.org> | 2011-04-13 18:56:13 +0200 |
| commit | 5cde92cb0e447ef9d415918c5194c3e65282ab28 (patch) | |
| tree | 19518ce48245477d422d61ddc6b3bc01545bfd60 /openbsc/src/osmo-bsc_nat/bsc_nat.c | |
| parent | 06009c8d5a251e3803259ca63eec18970e2554a7 (diff) | |
nat: And out the skip_indicator/transaction id from the gsm48 header
We need to and out the protocol discriminator as call control
might have use transactions. This has only failed for the USSD
filter so far as this must deal with transactions.
Diffstat (limited to 'openbsc/src/osmo-bsc_nat/bsc_nat.c')
| -rw-r--r-- | openbsc/src/osmo-bsc_nat/bsc_nat.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat.c b/openbsc/src/osmo-bsc_nat/bsc_nat.c index 8c164a270..d38256587 100644 --- a/openbsc/src/osmo-bsc_nat/bsc_nat.c +++ b/openbsc/src/osmo-bsc_nat/bsc_nat.c @@ -542,15 +542,16 @@ static void update_con_authorize(struct sccp_connections *con, parsed->gsm_type == BSS_MAP_MSG_CIPHER_MODE_CMD) { con->authorized = 1; } else if (parsed->bssap == BSSAP_MSG_DTAP) { - uint8_t msg_type; + uint8_t msg_type, proto; uint32_t len; struct gsm48_hdr *hdr48; hdr48 = bsc_unpack_dtap(parsed, msg, &len); if (!hdr48) return; + proto = hdr48->proto_discr & 0x0f; msg_type = hdr48->msg_type & 0xbf; - if (hdr48->proto_discr == GSM48_PDISC_MM && + if (proto == GSM48_PDISC_MM && msg_type == GSM48_MT_MM_CM_SERV_ACC) con->authorized = 1; } |