/*
* Extract all information from a request
* and update a dialog structure
*/
static inline int request2dlg(struct sip_msg* _m, dlg_t* _d)
{
str contact, rtag, callid;
if (parse_headers(_m, HDR_EOH_F, 0) == -1) {
LOG(L_ERR, "request2dlg(): Error while parsing headers");
return -1;
}
if (get_contact_uri(_m, &contact) < 0) return -2;
if (contact.len) {
if (_d->rem_target.s) shm_free(_d->rem_target.s);
if (_d->dst_uri.s) {
shm_free(_d->dst_uri.s);
_d->dst_uri.s = 0;
_d->dst_uri.len = 0;
}
if (str_duplicate(&_d->rem_target, &contact) < 0) return -3;
}
if (get_from_tag(_m, &rtag) < 0) goto err1;
if (rtag.len && str_duplicate(&_d->id.rem_tag, &rtag) < 0) goto err1;
if (get_callid(_m, &callid) < 0) goto err2;
if (callid.len && str_duplicate(&_d->id.call_id, &callid) < 0) goto err2;
if (get_cseq_value(_m, &_d->rem_seq.value) < 0) goto err3;
_d->rem_seq.is_set = 1;
if (get_dlg_uri(_m->from, &_d->rem_uri) < 0) goto err3;
if (get_dlg_uri(_m->to, &_d->loc_uri) < 0) goto err4;
if (get_route_set(_m, &_d->route_set, NORMAL_ORDER) < 0) goto err5;
return 0;
err5:
if (_d->loc_uri.s) shm_free(_d->loc_uri.s);
_d->loc_uri.s = 0;
_d->loc_uri.len = 0;
err4:
if (_d->rem_uri.s) shm_free(_d->rem_uri.s);
_d->rem_uri.s = 0;
_d->rem_uri.len = 0;
err3:
if (_d->id.call_id.s) shm_free(_d->id.call_id.s);
_d->id.call_id.s = 0;
_d->id.call_id.len = 0;
err2:
if (_d->id.rem_tag.s) shm_free(_d->id.rem_tag.s);
_d->id.rem_tag.s = 0;
_d->id.rem_tag.len = 0;
err1:
if (_d->rem_target.s) shm_free(_d->rem_target.s);
_d->rem_target.s = 0;
_d->rem_target.len = 0;
return -4;
}
/*
* Extract all necessary information from a response and put it
* in a dialog structure
*/
static inline int response2dlg(struct sip_msg* _m, dlg_t* _d)
{
str contact, rtag;
rtag.s=0;
/* Parse the whole message, we will need all Record-Route headers */
if (parse_headers(_m, HDR_EOH_F, 0) == -1) {
LOG(L_ERR, "response2dlg(): Error while parsing headers\n");
return -1;
}
if (get_contact_uri(_m, &contact) < 0) return -2;
if (_d->rem_target.s) {
shm_free(_d->rem_target.s);
_d->rem_target.s = 0;
_d->rem_target.len = 0;
}
if (_d->dst_uri.s) {
shm_free(_d->dst_uri.s);
_d->dst_uri.s = 0;
_d->dst_uri.len = 0;
}
if (contact.len && str_duplicate(&_d->rem_target, &contact) < 0) return -3;
if (get_to_tag(_m, &rtag) < 0) goto err1;
//Its unlikely needed to update the tag with responses but for some reason i do it
if (_d->id.rem_tag.s) shm_free(_d->id.rem_tag.s);
if (rtag.len && str_duplicate(&_d->id.rem_tag, &rtag) < 0) goto err1;
if (_d->route_set) shm_free_rr(&_d->route_set);
if (get_route_set(_m, &_d->route_set, REVERSE_ORDER) < 0) goto err2;
return 0;
err2:
if (_d->id.rem_tag.s) shm_free(_d->id.rem_tag.s);
_d->id.rem_tag.s = 0;
_d->id.rem_tag.len = 0;
err1:
if (_d->rem_target.s) shm_free(_d->rem_target.s);
_d->rem_target.s = 0;
_d->rem_target.len = 0;
return -4;
}