/**
* Check if the message is from the AS.
* Inserts route headers and set the dst_uri
* @param msg - the message to check
* @param str1 - the direction of the request orig/term
* @param str2 - not used
* @returns #ISC_RETURN_TRUE if session should continue, #ISC_RETURN_FALSE if not, #ISC_RETURN_BREAK on error
*/
int ISC_is_session_continued(struct sip_msg *msg,char *str1,char *str2)
{
int ret = ISC_RETURN_FALSE;
isc_mark old_mark;
struct sip_msg *req;
req = cscf_get_request_from_reply(msg);
if (!req) {
LOG(L_ERR,"ERR:"M_NAME":ISC_is_session_continued(): There is no transaction \n");
return ISC_RETURN_FALSE;
}
if (!isc_is_initial_request(req)) {
LOG(L_ERR,"ERR:"M_NAME":ISC_is_session_continued(): This is no initial request \n");
return ISC_RETURN_FALSE;
}
/* starting or resuming? */
if (isc_mark_get_from_lump(req,&old_mark)){
LOG(L_INFO,"INFO:"M_NAME":ISC_is_session_continued(): Message returned handling [%d] \n",old_mark.handling);
if (old_mark.handling == IFC_SESSION_CONTINUED)
ret = ISC_RETURN_TRUE;
else
ret = ISC_RETURN_FALSE;
} else {
LOG(L_ERR,"ERR:"M_NAME":ISC_is_session_continued(): mark not found in lump \n");
ret = ISC_RETURN_ERROR;
}
return ret;
}
/**
* Check if the message is from the AS.
* Inserts route headers and set the dst_uri
* @param msg - the message to check
* @param str1 - the direction of the request orig/term
* @param str2 - not used
* @returns #ISC_RETURN_TRUE if from AS, #ISC_RETURN_FALSE if not, #ISC_RETURN_BREAK on error
*/
int ISC_from_AS(struct sip_msg *msg,char *str1,char *str2)
{
int ret = ISC_RETURN_FALSE;
isc_mark old_mark;
enum dialog_direction dir = get_dialog_direction(str1);
if (dir==DLG_MOBILE_UNKNOWN)
return ISC_RETURN_BREAK;
if (!isc_is_initial_request(msg)) return ISC_RETURN_FALSE;
/* starting or resuming? */
if (isc_mark_get_from_msg(msg,&old_mark)){
LOG(L_INFO,"INFO:"M_NAME":ISC_from_AS(%s): Message returned s=%d;h=%d;d=%d\n",
str1,old_mark.skip,old_mark.handling,old_mark.direction);
if (old_mark.direction==IFC_ORIGINATING_SESSION && dir!=DLG_MOBILE_ORIGINATING)
ret = ISC_RETURN_FALSE;
else
if ((old_mark.direction==IFC_TERMINATING_SESSION||old_mark.direction==IFC_TERMINATING_UNREGISTERED)
&& dir!=DLG_MOBILE_TERMINATING)
ret = ISC_RETURN_FALSE;
else
ret = ISC_RETURN_TRUE;
} else {
ret = ISC_RETURN_FALSE;
}
return ret;
}
/**
* Checks if there is a match.
* Inserts route headers and set the dst_uri
* @param msg - the message to check
* @param str1 - the direction of the request orig/term
* @param str2 - not used
* @returns #ISC_RETURN_TRUE if found, #ISC_RETURN_FALSE if not, #ISC_RETURN_BREAK on error
*/
int ISC_match_filter(struct sip_msg *msg,char *str1,char *str2)
{
int k = 0;
isc_match *m = NULL;
str s={0,0};
int ret = ISC_RETURN_FALSE;
isc_mark new_mark,old_mark;
enum dialog_direction dir = get_dialog_direction(str1);
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Checking triggers\n",str1);
if (dir==DLG_MOBILE_UNKNOWN)
return ISC_RETURN_BREAK;
if (!isc_is_initial_request(msg)) return ISC_RETURN_FALSE;
/* starting or resuming? */
memset(&old_mark,0,sizeof(isc_mark));
memset(&new_mark,0,sizeof(isc_mark));
if (isc_mark_get_from_msg(msg,&old_mark)){
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Message returned s=%d;h=%d;d=%d;a=%.*s\n",
str1,old_mark.skip,old_mark.handling,old_mark.direction,old_mark.aor.len,old_mark.aor.s);
}
else {
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Starting triggering\n",str1);
}
if (
#ifdef SER_MOD_INTERFACE
is_route_type(FAILURE_ROUTE)
#else
*isc_tmb.route_mode==MODE_ONFAILURE
#endif
){
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): failure\n",str1);
/* need to find the handling for the failed trigger */
if (dir==DLG_MOBILE_ORIGINATING){
k = isc_get_originating_user(msg,&old_mark,&s);
if (k){
k = isc_is_registered(&s);
if (k==NOT_REGISTERED) {
ret = ISC_MSG_NOT_FORWARDED;
goto done;
}
new_mark.direction = IFC_ORIGINATING_SESSION;
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Orig User <%.*s> [%d]\n",str1,
s.len,s.s,k);
} else goto done;
}
if (dir==DLG_MOBILE_TERMINATING){
k = isc_get_terminating_user(msg,&old_mark,&s);
if (k){
k = isc_is_registered(&s);
//LOG(L_DBG,"after isc_is_registered in ISC_match_filter\n");
if (k==REGISTERED) {
new_mark.direction = IFC_TERMINATING_SESSION;
} else {
new_mark.direction = IFC_TERMINATING_UNREGISTERED;
}
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Term User <%.*s> [%d]\n",str1,
s.len,s.s,k);
} else {
goto done;
}
}
struct cell * t = isc_tmb.t_gett();
LOG(L_CRIT,"SKIP: %d\n",old_mark.skip);
int index = old_mark.skip;
for (k=0;k<t->nr_of_outgoings;k++) {
m = isc_checker_find(s,new_mark.direction,index,msg,isc_is_registered(&s));
if (m) {
index = m->index;
if (k < t->nr_of_outgoings - 1) isc_free_match(m);
} else {
LOG(L_ERR,"ERR:"M_NAME":ISC_match_filter(%s): On failure, previously matched trigger no longer matches?!\n", str1);
ret = ISC_RETURN_BREAK;
goto done;
}
}
if (m->default_handling==IFC_SESSION_TERMINATED) {
/* Terminate the session */
DBG("DEBUG:"M_NAME":ISC_match_filter(%s): Terminating session.\n", str1);
isc_tmb.t_reply(msg,IFC_AS_UNAVAILABLE_STATUS_CODE,
"AS Contacting Failed - iFC terminated dialog");
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Responding with %d "
"to URI: %.*s\n",str1, IFC_AS_UNAVAILABLE_STATUS_CODE,
msg->first_line.u.request.uri.len,
msg->first_line.u.request.uri.s);
isc_free_match(m);
ret = ISC_RETURN_BREAK;
goto done;
}
/* skip the failed triggers (IFC_SESSION_CONTINUED) */
old_mark.skip = index + 1;
isc_free_match(m);
isc_mark_drop_route(msg);
}
/* originating leg */
if (dir==DLG_MOBILE_ORIGINATING){
k = isc_get_originating_user(msg,&old_mark,&s);
if (k){
k = isc_is_registered(&s);
if (k==NOT_REGISTERED) return ISC_MSG_NOT_FORWARDED;
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Orig User <%.*s> [%d]\n",str1,
s.len,s.s,k);
m = isc_checker_find(s,old_mark.direction,old_mark.skip,msg,isc_is_registered(&s));
if (m){
new_mark.direction = IFC_ORIGINATING_SESSION;
new_mark.skip = m->index+1;
new_mark.handling = m->default_handling;
new_mark.aor = s;
ret = isc_forward(msg,m,&new_mark);
isc_free_match(m);
goto done;
}
}
goto done;
}
/* terminating leg */
if (dir==DLG_MOBILE_TERMINATING){
k = isc_get_terminating_user(msg,&old_mark,&s);
if (k){
k = isc_is_registered(&s);
if (k==REGISTERED) {
new_mark.direction = IFC_TERMINATING_SESSION;
} else {
new_mark.direction = IFC_TERMINATING_UNREGISTERED;
}
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Term User <%.*s> [%d]\n",str1,
s.len,s.s,k);
m = isc_checker_find(s,new_mark.direction,old_mark.skip,msg,isc_is_registered(&s));
if (m){
new_mark.skip = m->index+1;
new_mark.handling = m->default_handling;
new_mark.aor = s;
ret = isc_forward(msg,m,&new_mark);
isc_free_match(m);
goto done;
}
}
goto done;
}
done:
if (old_mark.aor.s) pkg_free(old_mark.aor.s);
return ret;
}
/**
* Checks if there is a match.
* Inserts route headers and set the dst_uri
* @param msg - the message to check
* @param str1 - the direction of the request orig/term
* @param str2 - not used
* @returns #ISC_RETURN_TRUE if found, #ISC_RETURN_FALSE if not, #ISC_RETURN_BREAK on error
*/
int ISC_match_filter(struct sip_msg *msg,char *str1,char *str2)
{
int k;
isc_match *m;
str s={0,0};
int ret = ISC_RETURN_FALSE;
isc_mark new_mark,old_mark;
enum dialog_direction dir = get_dialog_direction(str1);
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Checking triggers\n",str1);
if (dir==DLG_MOBILE_UNKNOWN)
return ISC_RETURN_BREAK;
if (!isc_is_initial_request(msg)) return ISC_RETURN_FALSE;
/* starting or resuming? */
memset(&old_mark,0,sizeof(isc_mark));
if (isc_mark_get_from_msg(msg,&old_mark)){
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Message returned s=%d;h=%d;d=%d\n",
str1,old_mark.skip,old_mark.handling,old_mark.direction);
}
else {
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Starting triggering\n",str1);
}
/* originating leg */
if (dir==DLG_MOBILE_ORIGINATING){
k = isc_get_originating_user(msg,&s);
if (k){
k = isc_is_registered(&s);
if (k==NOT_REGISTERED) return ISC_MSG_NOT_FORWARDED;
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Orig User <%.*s> [%d]\n",str1,
s.len,s.s,k);
m = isc_checker_find(s,old_mark.direction,old_mark.skip,msg);
if (m){
new_mark.direction = IFC_ORIGINATING_SESSION;
new_mark.skip = m->index+1;
new_mark.handling = m->default_handling;
ret = isc_forward(msg,m,&new_mark);
isc_free_match(m);
return ret;
}
}
return ret;
}
/* terminating leg */
if (dir==DLG_MOBILE_TERMINATING){
k = isc_get_terminating_user(msg,&s);
if (k){
k = isc_is_registered(&s);
if (k==REGISTERED) {
new_mark.direction = IFC_TERMINATING_SESSION;
} else {
new_mark.direction = IFC_TERMINATING_UNREGISTERED;
}
LOG(L_INFO,"INFO:"M_NAME":ISC_match_filter(%s): Orig User <%.*s> [%d]\n",str1,
s.len,s.s,k);
m = isc_checker_find(s,new_mark.direction,old_mark.skip,msg);
if (m){
new_mark.skip = m->index+1;
new_mark.handling = m->default_handling;
ret = isc_forward(msg,m,&new_mark);
isc_free_match(m);
if (s.s) pkg_free(s.s);
return ret;
}
}
if (s.s) pkg_free(s.s);
return ret;
}
return ret;
}