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add late negotiation mode for sofia 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4008 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale 2007-01-20 18:51:57 +00:00
parent 788279608b
commit a4dd01a0ee
2 changed files with 77 additions and 31 deletions
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3
conf/freeswitch.xml
View File

@ -161,6 +161,9 @@
<!--Uncomment to set all inbound calls to no media mode-->
<!--<param name="inbound-no-media" value="true"/>-->
<!--Uncomment to let calls hit the dialplan *before* you decide if the codec is ok-->
<!--<param name="inbound-late-negotiation" value="true"/>-->
<!-- this lets anything register -->
<!-- comment the next line and uncomment one or both of the other 2 lines for call authentication -->
<param name="accept-blind-reg" value="true"/>

101
src/mod/endpoints/mod_sofia/mod_sofia.c
View File

@ -168,7 +168,8 @@ typedef enum {
TFLAG_NOMEDIA = (1 << 20),
TFLAG_BUGGY_2833 = (1 << 21),
TFLAG_SIP_HOLD = (1 << 22),
TFLAG_INB_NOMEDIA = (1 << 23)
TFLAG_INB_NOMEDIA = (1 << 23),
TFLAG_LATE_NEGOTIATION = (1 << 24)
} TFLAGS;
static struct {
@ -1495,6 +1496,45 @@ static switch_status_t activate_rtp(private_object_t *tech_pvt)
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t tech_media(private_object_t *tech_pvt, char *r_sdp)
{
sdp_parser_t *parser = sdp_parse(tech_pvt->home, r_sdp, (int)strlen(r_sdp), 0);
sdp_session_t *sdp;
uint8_t match = 0;
switch_channel_t *channel = switch_core_session_get_channel(tech_pvt->session);
assert(tech_pvt != NULL);
if (switch_strlen_zero(r_sdp)) {
return SWITCH_STATUS_FALSE;
}
if (tech_pvt->num_codecs) {
if ((sdp = sdp_session(parser))) {
match = negotiate_sdp(tech_pvt->session, sdp);
}
}
if (parser) {
sdp_parser_free(parser);
}
if (match) {
if (tech_choose_port(tech_pvt) != SWITCH_STATUS_SUCCESS) {
return SWITCH_STATUS_FALSE;
}
activate_rtp(tech_pvt);
switch_channel_set_variable(channel, "endpoint_disposition", "EARLY MEDIA");
switch_set_flag_locked(tech_pvt, TFLAG_EARLY_MEDIA);
switch_channel_set_flag(channel, CF_EARLY_MEDIA);
return SWITCH_STATUS_SUCCESS;
}
return SWITCH_STATUS_FALSE;
}
static switch_status_t sofia_answer_channel(switch_core_session_t *session)
{
private_object_t *tech_pvt;
@ -1509,6 +1549,17 @@ static switch_status_t sofia_answer_channel(switch_core_session_t *session)
tech_pvt = (private_object_t *) switch_core_session_get_private(session);
assert(tech_pvt != NULL);
if (switch_test_flag(tech_pvt, TFLAG_LATE_NEGOTIATION)) {
char *r_sdp = switch_channel_get_variable(channel, SWITCH_R_SDP_VARIABLE);
if (tech_media(tech_pvt, r_sdp) != SWITCH_STATUS_SUCCESS) {
switch_channel_set_variable(channel, "endpoint_disposition", "CODEC NEGOTIATION ERROR");
nua_respond(tech_pvt->nh, SIP_488_NOT_ACCEPTABLE, TAG_END());
return SWITCH_STATUS_FALSE;
}
switch_clear_flag_locked(tech_pvt, TFLAG_LATE_NEGOTIATION);
}
if (switch_channel_test_flag(channel, CF_NOMEDIA)) {
switch_set_flag_locked(tech_pvt, TFLAG_NOMEDIA);
tech_absorb_sdp(tech_pvt);
@ -1916,6 +1967,17 @@ static switch_status_t sofia_receive_message(switch_core_session_t *session, swi
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
if (switch_test_flag(tech_pvt, TFLAG_LATE_NEGOTIATION)) {
char *r_sdp = switch_channel_get_variable(channel, SWITCH_R_SDP_VARIABLE);
if (tech_media(tech_pvt, r_sdp) != SWITCH_STATUS_SUCCESS) {
switch_channel_set_variable(channel, "endpoint_disposition", "CODEC NEGOTIATION ERROR");
nua_respond(tech_pvt->nh, SIP_488_NOT_ACCEPTABLE, TAG_END());
return SWITCH_STATUS_FALSE;
}
switch_clear_flag_locked(tech_pvt, TFLAG_LATE_NEGOTIATION);
}
if (!switch_test_flag(tech_pvt, TFLAG_EARLY_MEDIA) && !switch_test_flag(tech_pvt, TFLAG_ANS)) {
switch_set_flag_locked(tech_pvt, TFLAG_EARLY_MEDIA);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Asked to send early media by %s\n", msg->from);
@ -2502,7 +2564,6 @@ static void pass_sdp(private_object_t *tech_pvt, char *sdp)
}
}
static void sip_i_state(int status,
char const *phrase,
nua_t *nua,
@ -2616,35 +2677,15 @@ static void sip_i_state(int status,
switch_channel_pre_answer(other_channel);
switch_core_session_rwunlock(other_session);
}
goto done;
} else if (!switch_test_flag(tech_pvt, TFLAG_LATE_NEGOTIATION)) {
if (tech_media(tech_pvt, r_sdp) != SWITCH_STATUS_SUCCESS) {
switch_channel_set_variable(channel, "endpoint_disposition", "CODEC NEGOTIATION ERROR");
nua_respond(nh, SIP_488_NOT_ACCEPTABLE, TAG_END());
}
goto done;
} else {
sdp_parser_t *parser = sdp_parse(tech_pvt->home, r_sdp, (int)strlen(r_sdp), 0);
sdp_session_t *sdp;
uint8_t match = 0;
if (tech_pvt->num_codecs) {
if ((sdp = sdp_session(parser))) {
match = negotiate_sdp(session, sdp);
}
}
if (parser) {
sdp_parser_free(parser);
}
if (match) {
if (tech_choose_port(tech_pvt) != SWITCH_STATUS_SUCCESS) {
goto done;
}
activate_rtp(tech_pvt);
switch_channel_set_variable(channel, "endpoint_disposition", "EARLY MEDIA");
switch_set_flag_locked(tech_pvt, TFLAG_EARLY_MEDIA);
switch_channel_set_flag(channel, CF_EARLY_MEDIA);
goto done;
}
switch_channel_set_variable(channel, "endpoint_disposition", "NO CODECS");
nua_respond(nh, SIP_488_NOT_ACCEPTABLE,
TAG_END());
switch_channel_set_variable(channel, "endpoint_disposition", "DELAYED NEGOTIATION");
}
}
}
@ -4876,6 +4917,8 @@ static switch_status_t config_sofia(int reload)
switch_set_flag(profile, TFLAG_TIMER);
} else if (!strcasecmp(var, "inbound-no-media") && switch_true(val)) {
switch_set_flag(profile, TFLAG_INB_NOMEDIA);
} else if (!strcasecmp(var, "inbound-late-negotiation") && switch_true(val)) {
switch_set_flag(profile, TFLAG_LATE_NEGOTIATION);
} else if (!strcasecmp(var, "rfc2833-pt")) {
profile->te = (switch_payload_t) atoi(val);
} else if (!strcasecmp(var, "sip-port")) {