/**
* Given a call-id, locate if its terminating,orginating or both
* release the dialog involved and drop the dialog
* @param callid - the Call-ID to release
* @param reason - the Reason header to include in messages
* @returns 0 on error, 1 on success
*/
int release_call(str callid,int reason_code,str reason_text)
{
p_dialog *d=0;
unsigned int hash;
int res = 0;
d = get_p_dialog_dir(callid,DLG_MOBILE_ORIGINATING);
if (d) {
hash = d->hash;
if (release_call_p(d,reason_code,reason_text)>0) res = 1;
goto done;
}
d = get_p_dialog_dir(callid,DLG_MOBILE_TERMINATING);
if (d) {
hash = d->hash;
if (release_call_p(d,reason_code,reason_text)>0) res = 1;
goto done;
}
/*Neither ORGINATING nor TERMINATING is UNKNOWN!*/
/*or doesn't exist*/
/*drop it silently?*/
/*treat it as ORIGINATING or TERMINATING?*/
done:
if (d) d_unlock(hash);
return 0;
}
/**
* Releases a call from the on reply route block
* called with any reply to an INVITE
* useful in cases of rejecting a call when you are processing the SDP
* or handling QoS things
* @msg - the sip message being processed
* @str1 - the first parameter "orig" or "term"
* @str2 - [optional] the Reason header that you want to go to the messages
* @returns - TRUE on success or FALSE on misscall and BREAK on error
*/
int P_release_call_onreply(struct sip_msg *msg,char *str1,char *str2)
{
enum p_dialog_direction dir;
p_dialog *d=NULL;
str callid;
struct hdr_field *h1;
str reason={NULL,0};
if (str2) {
reason.s=str2;
reason.len=strlen(str2);
} else
reason = _488_text_s;
dir= (str1[0]=='o' || str1[0]=='O' || str1[0]=='0')? DLG_MOBILE_ORIGINATING : DLG_MOBILE_TERMINATING;
if (msg->first_line.type== SIP_REQUEST)
{
LOG(L_ERR,"ERR: P_release_call_on_reply called with a request\n");
return CSCF_RETURN_FALSE;
}
callid=cscf_get_call_id(msg,&h1);
if (is_p_dialog_dir(callid,dir)) {
d=get_p_dialog_dir(callid,dir);
if (msg->first_line.u.reply.statuscode > 199)
{
release_call_previous(d,RELEASE_CALL_WEIRD,488,reason);
d_unlock(d->hash);
return CSCF_RETURN_TRUE;
} else {
release_call_previous(d,RELEASE_CALL_EARLY,488,reason);
d_unlock(d->hash);
return CSCF_RETURN_TRUE;
}
} else {
LOG(L_ERR,"ERR:"M_NAME "P_release_call_onreply : unable to find dialog\n");
return CSCF_RETURN_BREAK;
}
}
/**
* Callback function for BYE requests!
* Identify the s_dialog, then see if one BYE has already been recieved
* if yes drop it , if no, wait for the second
*/
void confirmed_response(struct cell *t,int type,struct tmcb_params *ps)
{
p_dialog *d;
unsigned int hash;
str call_id;
enum p_dialog_direction dir;
if (!ps->param) return;
dir = *((enum p_dialog_direction *) *(ps->param));
shm_free(*ps->param);
*ps->param = 0;
//call_id = cscf_get_call_id(ps->rpl,0);
call_id = t->callid;
call_id.s+=9;
call_id.len-=11;
LOG(L_INFO,"DBG:"M_NAME":confirmed_response(): Received a BYE for a call release for <%.*s> DIR[%d].\n",
call_id.len,call_id.s,dir);
d = get_p_dialog_dir(call_id,dir);
if (!d) {
LOG(L_ERR,"ERR:"M_NAME":confirmed_response(): Received a BYE for a call release but there is no dialog for <%.*s> DIR[%d].\n",
call_id.len,call_id.s,dir);
return;
}
if (ps->code>=200){
if (d->state==DLG_STATE_TERMINATED_ONE_SIDE){
hash=d->hash;
del_p_dialog(d);
d_unlock(hash);
} else {
hash=d->hash;
d->state=DLG_STATE_TERMINATED_ONE_SIDE;
d_unlock(hash);
}
}
}
/**
* Releases a call from the on reply route block
* called with any reply to an INVITE
* useful in cases of rejecting a call when you are processing the SDP
* or handling QoS things
* @msg - the sip message being processed
* @str1 - the first parameter "orig" or "term"
* @str2 - [optional] the Reason header that you want to go to the messages
* @returns - BREAK ... whatever happens this message is not relayed
*/
int P_release_call_onreply(struct sip_msg *msg,char *str1,char *str2)
{
enum p_dialog_direction dir;
p_dialog *d=NULL;
str callid;
struct hdr_field *h1;
str reason= {NULL,0};
unsigned int hash;
struct cell* t; /*needed to distinguish between UPDATE and INVITE*/
LOG(L_INFO,ANSI_WHITE"P_release_call_on_reply\n");
if (str2) {
reason.s=str2;
reason.len=strlen(str2);
} else
reason = _488_text_s;
dir= (str1[0]=='o' || str1[0]=='O' || str1[0]=='0')? DLG_MOBILE_ORIGINATING : DLG_MOBILE_TERMINATING;
if (msg->first_line.type== SIP_REQUEST)
{
LOG(L_ERR,"ERR: P_release_call_on_reply called with a request\n");
return CSCF_RETURN_FALSE;
}
callid=cscf_get_call_id(msg,&h1);
if (is_p_dialog_dir(callid,dir)) {
d=get_p_dialog_dir(callid,dir);
hash=d->hash;
t=tmb.t_gett();
if (!t) {
LOG(L_ERR,"P_release_call_onreply(): unable to get transaction\n");
return CSCF_RETURN_BREAK;
}
if (t->method.len==6 && memcmp(t->method.s,"INVITE",6)==0)
{
// If its an INVTE, the state depends on which reply we are processing
if (msg->first_line.u.reply.statuscode > 199)
{
release_call_previous(d,RELEASE_CALL_WEIRD,488,reason);
} else {
release_call_previous(d,RELEASE_CALL_EARLY,488,reason);
}
// This means we already finished with the dialog
if (d->pcc_session_id.s) shm_free(d->pcc_session_id.s);
d->pcc_session_id.s=0;
d->pcc_session_id.len=0;
d_unlock(hash);
return CSCF_RETURN_BREAK;
} else {
//UPDATE so early
release_call_early(d,488,reason);
d_unlock(hash);
return CSCF_RETURN_BREAK;
}
} else {
LOG(L_ERR,"ERR:"M_NAME "P_release_call_onreply : unable to find dialog\n");
return CSCF_RETURN_ERROR;
}
}
