int send_leg_msg(struct dlg_cell *dlg,str *method,int src_leg,int dst_leg,
str *hdrs,str *body,dlg_request_callback func,void *param,dlg_release_func release)
{
context_p old_ctx;
dlg_t* dialog_info;
int result;
unsigned int method_type;
if (parse_method(method->s,method->s+method->len,&method_type) == 0)
{
LM_ERR("Failed to parse method - [%.*s]\n",method->len,method->s);
return -1;
}
if (method_type == METHOD_INVITE && (body == NULL || body->s == NULL ||
body->len == 0))
{
LM_ERR("Cannot send INVITE without SDP body\n");
return -1;
}
if ((dialog_info = build_dialog_info(dlg, dst_leg, src_leg)) == 0)
{
LM_ERR("failed to create dlg_t\n");
return -1;
}
LM_DBG("sending [%.*s] to %s (%d)\n",method->len,method->s,
(dst_leg==DLG_CALLER_LEG)?"caller":"callee", dst_leg);
/* set new processing context */
if (push_new_processing_context( dlg, &old_ctx, NULL)!=0)
return -1;
dialog_info->T_flags=T_NO_AUTOACK_FLAG;
result = d_tmb.t_request_within
(method, /* method*/
hdrs, /* extra headers*/
body, /* body*/
dialog_info, /* dialog structure*/
func, /* callback function*/
param, /* callback parameter*/
release); /* release function*/
/* reset the processing contect */
current_processing_ctx = old_ctx;
if(result < 0)
{
LM_ERR("failed to send the in-dialog request\n");
free_tm_dlg(dialog_info);
return -1;
}
free_tm_dlg(dialog_info);
return 0;
}
/* cell- pointer to a struct dlg_cell
* leg - a dialog leg to be BYE'ed :
* = 0: caller leg
* > 0: callee legs
*/
static inline int send_leg_bye(struct dlg_cell *cell, int dst_leg, int src_leg,
str *extra_hdrs)
{
context_p old_ctx;
context_p *new_ctx;
dlg_t* dialog_info;
str met = {"BYE", 3};
int result;
if ((dialog_info = build_dlg_t(cell, dst_leg, src_leg)) == 0){
LM_ERR("failed to create dlg_t\n");
goto err;
}
LM_DBG("sending BYE to %s (%d)\n",
(dst_leg==DLG_CALLER_LEG)?"caller":"callee", dst_leg);
/* set new processing context */
if (push_new_processing_context( cell, &old_ctx, &new_ctx, NULL)!=0)
goto err;
ctx_lastdstleg_set(dst_leg);
ref_dlg(cell, 1);
result = d_tmb.t_request_within
(&met, /* method*/
extra_hdrs, /* extra headers*/
NULL, /* body*/
dialog_info, /* dialog structure*/
bye_reply_cb, /* callback function*/
(void*)cell, /* callback parameter*/
NULL); /* release function*/
/* reset the processing contect */
if (current_processing_ctx == NULL)
*new_ctx = NULL;
else
context_destroy(CONTEXT_GLOBAL, *new_ctx);
current_processing_ctx = old_ctx;
if(result < 0){
LM_ERR("failed to send the BYE request\n");
goto err1;
}
free_tm_dlg(dialog_info);
LM_DBG("BYE sent to %s\n", (dst_leg==DLG_CALLER_LEG)?"caller":"callee");
return 0;
err1:
unref_dlg(cell, 1);
err:
return -1;
}
static void dual_bye_event(struct dlg_cell* dlg, struct sip_msg *req, int extra_unref)
{
int event, old_state, new_state, unref, ret;
struct sip_msg *fake_msg=NULL;
context_p old_ctx;
event = DLG_EVENT_REQBYE;
next_state_dlg(dlg, event, DLG_DIR_DOWNSTREAM, &old_state, &new_state,
&unref, dlg->legs_no[DLG_LEG_200OK], 0);
unref += extra_unref;
if(new_state == DLG_STATE_DELETED && old_state != DLG_STATE_DELETED){
LM_DBG("removing dialog with h_entry %u and h_id %u\n",
dlg->h_entry, dlg->h_id);
/*destroy linkers */
dlg_lock_dlg(dlg);
destroy_linkers(dlg->profile_links, 0);
dlg->profile_links = NULL;
dlg_unlock_dlg(dlg);
/* remove from timer */
ret = remove_dlg_timer(&dlg->tl);
if (ret < 0) {
LM_CRIT("unable to unlink the timer on dlg %p [%u:%u] "
"with clid '%.*s' and tags '%.*s' '%.*s'\n",
dlg, dlg->h_entry, dlg->h_id,
dlg->callid.len, dlg->callid.s,
dlg_leg_print_info( dlg, DLG_CALLER_LEG, tag),
dlg_leg_print_info( dlg, callee_idx(dlg), tag));
} else if (ret > 0) {
LM_DBG("dlg already expired (not in timer list) %p [%u:%u] "
"with clid '%.*s' and tags '%.*s' '%.*s'\n",
dlg, dlg->h_entry, dlg->h_id,
dlg->callid.len, dlg->callid.s,
dlg_leg_print_info( dlg, DLG_CALLER_LEG, tag),
dlg_leg_print_info( dlg, callee_idx(dlg), tag));
} else {
/* successfully removed from timer list */
unref++;
}
if (req==NULL) {
/* set new msg & processing context */
if (push_new_processing_context( dlg, &old_ctx, &fake_msg)==0) {
/* dialog terminated (BYE) */
run_dlg_callbacks( DLGCB_TERMINATED, dlg, fake_msg, DLG_DIR_NONE, 0);
/* reset the processing contect */
current_processing_ctx = old_ctx;
} /* no CB run in case of failure FIXME */
} else {
/* we should have the msg and context from upper levels */
/* dialog terminated (BYE) */
run_dlg_callbacks( DLGCB_TERMINATED, dlg, req, DLG_DIR_NONE, 0);
}
LM_DBG("first final reply\n");
/* derefering the dialog */
unref_dlg(dlg, unref);
if_update_stat( dlg_enable_stats, active_dlgs, -1);
}
if(new_state == DLG_STATE_DELETED && old_state == DLG_STATE_DELETED ) {
/* trash the dialog from DB and memory */
LM_DBG("second final reply\n");
/* delete the dialog from DB */
if (should_remove_dlg_db())
remove_dialog_from_db(dlg);
/* force delete from mem */
unref_dlg(dlg, unref);
}
}
