diff options
| author | Harald Welte <laforge@netfilter.org> | 2009-12-12 21:36:53 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@netfilter.org> | 2009-12-12 21:36:53 +0100 |
| commit | 09b7e7fa43c74d35e8ea935f3096993e3360f33a (patch) | |
| tree | 3dff5b325570c28ac70a6ebaf696d2d555a1883f /openbsc/src/mncc.c | |
| parent | 487e6befb85a8e6f114d916045b65174c35810a8 (diff) | |
Gracefully reject non-speech calls
As we currently really only deal with voice/speech calls and don't
support FAX and DATA (CSD) calls, we now gracefully reject them.
Diffstat (limited to 'openbsc/src/mncc.c')
| -rw-r--r-- | openbsc/src/mncc.c | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/openbsc/src/mncc.c b/openbsc/src/mncc.c index f62541c05..de1765761 100644 --- a/openbsc/src/mncc.c +++ b/openbsc/src/mncc.c @@ -22,6 +22,7 @@ #include <stdio.h> #include <stdlib.h> #include <string.h> +#include <errno.h> #include <sys/types.h> #include <openbsc/gsm_04_08.h> @@ -136,19 +137,36 @@ static int mncc_setup_ind(struct gsm_call *call, int msg_type, struct gsm_mncc mncc; struct gsm_call *remote; + memset(&mncc, 0, sizeof(struct gsm_mncc)); + mncc.callref = call->callref; + /* already have remote call */ if (call->remote_ref) return 0; + /* transfer mode 1 would be packet mode, which was never specified */ + if (setup->bearer_cap.mode != 0) { + DEBUGP(DMNCC, "(call %x) We don't support packet mode\n", + call->callref); + mncc_set_cause(&mncc, GSM48_CAUSE_LOC_PRN_S_LU, + GSM48_CC_CAUSE_BEARER_CA_UNAVAIL); + goto out_reject; + } + + /* we currently only do speech */ + if (setup->bearer_cap.transfer != GSM_MNCC_BCAP_SPEECH) { + DEBUGP(DMNCC, "(call %x) We only support voice calls\n", + call->callref); + mncc_set_cause(&mncc, GSM48_CAUSE_LOC_PRN_S_LU, + GSM48_CC_CAUSE_BEARER_CA_UNAVAIL); + goto out_reject; + } + /* create remote call */ if (!(remote = talloc(tall_call_ctx, struct gsm_call))) { - memset(&mncc, 0, sizeof(struct gsm_mncc)); - mncc.callref = call->callref; mncc_set_cause(&mncc, GSM48_CAUSE_LOC_PRN_S_LU, GSM48_CC_CAUSE_RESOURCE_UNAVAIL); - mncc_send(call->net, MNCC_REJ_REQ, &mncc); - free_call(call); - return 0; + goto out_reject; } llist_add_tail(&remote->entry, &call_list); remote->net = call->net; @@ -179,6 +197,11 @@ static int mncc_setup_ind(struct gsm_call *call, int msg_type, setup->callref = remote->callref; DEBUGP(DMNCC, "(call %x) Forwarding SETUP to remote.\n", call->callref); return mncc_send(remote->net, MNCC_SETUP_REQ, setup); + +out_reject: + mncc_send(call->net, MNCC_REJ_REQ, &mncc); + free_call(call); + return 0; } static int mncc_alert_ind(struct gsm_call *call, int msg_type, |