diff options
| author | Holger Hans Peter Freyther <zecke@selfish.org> | 2010-04-22 11:58:13 +0800 |
|---|---|---|
| committer | Holger Hans Peter Freyther <zecke@selfish.org> | 2010-04-25 23:02:17 +0800 |
| commit | e3d16bb77530f2b3f08fdaf9640dd98bd9e730fa (patch) | |
| tree | c59435fe3fdb0cfe30d278d21a3c746907d35308 /openbsc/src/mgcp/mgcp_protocol.c | |
| parent | 74076934fb3ffb4c5cfa6be9710b0416b89328dc (diff) | |
[mgcp] Protocol extension to not generate answers.
For the NAT we want to send requests in a send and forget
way and we are not interested in seeing the answers, so tell
the gateway to not answer them.
Diffstat (limited to 'openbsc/src/mgcp/mgcp_protocol.c')
| -rw-r--r-- | openbsc/src/mgcp/mgcp_protocol.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/openbsc/src/mgcp/mgcp_protocol.c b/openbsc/src/mgcp/mgcp_protocol.c index 998476dec..6d5713c13 100644 --- a/openbsc/src/mgcp/mgcp_protocol.c +++ b/openbsc/src/mgcp/mgcp_protocol.c @@ -485,6 +485,7 @@ static struct msgb *handle_modify_con(struct mgcp_config *cfg, struct msgb *msg) const char *trans_id; struct mgcp_endpoint *endp; int error_code = 500; + int silent = 0; found = mgcp_analyze_header(cfg, msg, data_ptrs, ARRAY_SIZE(data_ptrs), &trans_id, &endp); if (found != 0) @@ -517,6 +518,9 @@ static struct msgb *handle_modify_con(struct mgcp_config *cfg, struct msgb *msg) goto error3; } break; + case 'Z': + silent = strcmp("noanswer", (const char *)&msg->l3h[line_start + 3]) == 0; + break; case '\0': /* SDP file begins */ break; @@ -562,6 +566,8 @@ static struct msgb *handle_modify_con(struct mgcp_config *cfg, struct msgb *msg) case MGCP_POLICY_REJECT: LOGP(DMGCP, LOGL_NOTICE, "MDCX rejected by policy on 0x%x\n", ENDPOINT_NUMBER(endp)); + if (silent) + goto out_silent; return create_response(500, "MDCX", trans_id); break; case MGCP_POLICY_DEFER: @@ -579,6 +585,9 @@ static struct msgb *handle_modify_con(struct mgcp_config *cfg, struct msgb *msg) ENDPOINT_NUMBER(endp), inet_ntoa(endp->remote), ntohs(endp->net_rtp)); if (cfg->change_cb) cfg->change_cb(cfg, ENDPOINT_NUMBER(endp), MGCP_ENDP_MDCX, endp->rtp_port); + if (silent) + goto out_silent; + return create_response_with_sdp(endp, "MDCX", trans_id); error: @@ -589,6 +598,10 @@ error: error3: return create_response(error_code, "MDCX", trans_id); + + +out_silent: + return NULL; } static struct msgb *handle_delete_con(struct mgcp_config *cfg, struct msgb *msg) @@ -598,6 +611,7 @@ static struct msgb *handle_delete_con(struct mgcp_config *cfg, struct msgb *msg) const char *trans_id; struct mgcp_endpoint *endp; int error_code = 500; + int silent = 0; found = mgcp_analyze_header(cfg, msg, data_ptrs, ARRAY_SIZE(data_ptrs), &trans_id, &endp); if (found != 0) @@ -619,6 +633,9 @@ static struct msgb *handle_delete_con(struct mgcp_config *cfg, struct msgb *msg) if (verify_ci(endp, (const char *)&msg->l3h[line_start + 3]) != 0) goto error3; break; + case 'Z': + silent = strcmp("noanswer", (const char *)&msg->l3h[line_start + 3]) == 0; + break; } default: LOGP(DMGCP, LOGL_NOTICE, "Unhandled option: '%c'/%d on 0x%x\n", @@ -634,6 +651,8 @@ static struct msgb *handle_delete_con(struct mgcp_config *cfg, struct msgb *msg) case MGCP_POLICY_REJECT: LOGP(DMGCP, LOGL_NOTICE, "DLCX rejected by policy on 0x%x\n", ENDPOINT_NUMBER(endp)); + if (silent) + goto out_silent; return create_response(500, "DLCX", trans_id); break; case MGCP_POLICY_DEFER: @@ -653,6 +672,8 @@ static struct msgb *handle_delete_con(struct mgcp_config *cfg, struct msgb *msg) if (cfg->change_cb) cfg->change_cb(cfg, ENDPOINT_NUMBER(endp), MGCP_ENDP_DLCX, endp->rtp_port); + if (silent) + goto out_silent; return create_response(250, "DLCX", trans_id); error: @@ -663,6 +684,9 @@ error: error3: return create_response(error_code, "DLCX", trans_id); + +out_silent: + return NULL; } static struct msgb *handle_rsip(struct mgcp_config *cfg, struct msgb *msg) |