diff options
| author | Harald Welte <laforge@gnumonks.org> | 2009-02-06 12:02:13 +0000 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2009-02-06 12:02:13 +0000 |
| commit | 2d35ae6d3bab5d44197907849ba189f53fc693b1 (patch) | |
| tree | eab189b05e2389e2d89001a939790bccee46f4df /src/gsm_04_08.c | |
| parent | 1cbfaf508a25b615171cec73c8bbd2f41fc9b764 (diff) | |
implement parsing of PAGING RESPONSE
Diffstat (limited to 'src/gsm_04_08.c')
| -rw-r--r-- | src/gsm_04_08.c | 43 |
1 files changed, 40 insertions, 3 deletions
diff --git a/src/gsm_04_08.c b/src/gsm_04_08.c index 9159f9e17..6f75d839c 100644 --- a/src/gsm_04_08.c +++ b/src/gsm_04_08.c @@ -649,10 +649,45 @@ static int gsm0408_rcv_mm(struct msgb *msg) return rc; } +/* Receive a PAGING RESPONSE message from the MS */ +static int gsm48_rr_rx_pag_resp(struct msgb *msg) +{ + struct gsm48_hdr *gh = msgb_l3(msg); + struct gsm48_paging_response *pr = + (struct gsm48_paging_response *) gh->data; + u_int8_t mi_type = pr->mi[0] & GSM_MI_TYPE_MASK; + char mi_string[MI_SIZE]; + struct gsm_subscriber *subscr; + int rc = 0; + + mi_to_string(mi_string, sizeof(mi_string), &pr->mi[0], pr->mi_len); + DEBUGP(DRR, "PAGING RESPONSE: mi_type=0x%02x MI(%s)\n", + mi_type, mi_string); + subscr = subscr_get_by_tmsi(mi_string); + + if (!subscr) { + DEBUGP(DRR, "<- Can't find any subscriber for this ID\n"); + /* FIXME: close channel? */ + return -EINVAL; + } + DEBUGP(DRR, "<- Channel was requested by %s\n", + subscr->name ? subscr->name : subscr->imsi); + + if (!msg->lchan->subscr) + msg->lchan->subscr = subscr; + else if (msg->lchan->subscr != subscr) { + DEBUGP(DRR, "<- Channel already owned by someone else?\n"); + subscr_put(subscr); + } + + return rc; +} + /* Receive a GSM 04.08 Radio Resource (RR) message */ static int gsm0408_rcv_rr(struct msgb *msg) { struct gsm48_hdr *gh = msgb_l3(msg); + int rc = 0; switch (gh->msg_type) { case GSM48_MT_RR_CLSM_CHG: @@ -663,13 +698,15 @@ static int gsm0408_rcv_rr(struct msgb *msg) DEBUGP(DRR, "GRPS SUSPEND REQUEST\n"); break; case GSM48_MT_RR_PAG_RESP: + rc = gsm48_rr_rx_pag_resp(msg); + break; default: - fprintf(stderr, "Unimplemented GSM 04.08 msg type 0x%02x\n", + fprintf(stderr, "Unimplemented GSM 04.08 RR msg type 0x%02x\n", gh->msg_type); break; } - return 0; + return rc; } /* Call Control */ @@ -816,7 +853,7 @@ static int gsm0408_rcv_cc(struct msgb *msg) /* FIXME: continue with CALL_PROCEEDING, ALERTING, CONNECT, RELEASE_COMPLETE */ break; default: - fprintf(stderr, "Unimplemented GSM 04.08 msg type 0x%02x\n", + fprintf(stderr, "Unimplemented GSM 04.08 CC msg type 0x%02x\n", msg_type); break; } |