/*! \brief
* Message contained some contacts, but record with same address
* of record was not found so we have to create a new record
* and insert all contacts from the message that have expires
* > 0
*/
static inline int insert_contacts(struct sip_msg* _m, contact_t* _c,
udomain_t* _d, str* _a, struct save_ctx *_sctx)
{
ucontact_info_t* ci;
urecord_t* r;
ucontact_t* c;
unsigned int cflags;
int num;
int e;
int e_max;
int tcp_check;
struct sip_uri uri;
cflags = (_sctx->flags®_SAVE_MEMORY_FLAG)?FL_MEM:FL_NONE;
if (is_tcp_based_proto(_m->rcv.proto) && (_m->flags&tcp_persistent_flag)) {
e_max = 0;
tcp_check = 1;
} else {
e_max = tcp_check = 0;
}
for( num=0,r=0,ci=0 ; _c ; _c = get_next_contact(_c) ) {
/* calculate expires */
calc_contact_expires(_m, _c->expires, &e, _sctx);
/* Skip contacts with zero expires */
if (e == 0)
continue;
if (_sctx->max_contacts && (num >= _sctx->max_contacts)) {
if (_sctx->flags®_SAVE_FORCE_REG_FLAG) {
/* we are overflowing the number of maximum contacts,
so remove the first (oldest) one to prevent this */
if (r==NULL || r->contacts==NULL) {
LM_CRIT("BUG - overflow detected with r=%p and "
"contacts=%p\n",r,r->contacts);
goto error;
}
if (ul.delete_ucontact( r, r->contacts, 0)!=0) {
LM_ERR("failed to remove contact\n");
goto error;
}
} else {
LM_INFO("too many contacts (%d) for AOR <%.*s>, max=%d\n",
num, _a->len, _a->s, _sctx->max_contacts);
rerrno = R_TOO_MANY;
goto error;
}
} else {
num++;
}
if (r==0) {
if (ul.insert_urecord(_d, _a, &r, 0) < 0) {
rerrno = R_UL_NEW_R;
LM_ERR("failed to insert new record structure\n");
goto error;
}
}
/* pack the contact_info */
if ( (ci=pack_ci( (ci==0)?_m:0, _c, e, cflags, _sctx->flags))==0 ) {
LM_ERR("failed to extract contact info\n");
goto error;
}
if ( r->contacts==0 ||
ul.get_ucontact(r, &_c->uri, ci->callid, ci->cseq+1, &c)!=0 ) {
if (ul.insert_ucontact( r, &_c->uri, ci, &c, 0) < 0) {
rerrno = R_UL_INS_C;
LM_ERR("failed to insert contact\n");
goto error;
}
} else {
if (ul.update_ucontact( r, c, ci, 0) < 0) {
rerrno = R_UL_UPD_C;
LM_ERR("failed to update contact\n");
goto error;
}
}
if (tcp_check) {
/* parse contact uri to see if transport is TCP */
if (parse_uri( _c->uri.s, _c->uri.len, &uri)<0) {
LM_ERR("failed to parse contact <%.*s>\n",
_c->uri.len, _c->uri.s);
} else if ( is_tcp_based_proto(uri.proto) ) {
if (e_max) {
LM_WARN("multiple TCP contacts on single REGISTER\n");
if (e>e_max) e_max = e;
} else {
e_max = e;
}
}
}
}
if (r) {
if (r->contacts) {
build_contact(r->contacts,_m);
}
ul.release_urecord(r, 0);
}
if ( tcp_check && e_max>0 ) {
e_max -= act_time;
trans_set_dst_attr( &_m->rcv, DST_FCNTL_SET_LIFETIME,
(void*)(long)(e_max + 10) );
}
return 0;
error:
if (r)
ul.delete_urecord(_d, _a, r, 0);
return -1;
}
/*! \brief
* Message contained some contacts and appropriate
* record was found, so we have to walk through
* all contacts and do the following:
* 1) If contact in usrloc doesn't exists and
* expires > 0, insert new contact
* 2) If contact in usrloc exists and expires
* > 0, update the contact
* 3) If contact in usrloc exists and expires
* == 0, delete contact
*/
static inline int update_contacts(struct sip_msg* _m, urecord_t* _r,
contact_t* _c, struct save_ctx *_sctx)
{
ucontact_info_t *ci;
ucontact_t *c, *c_last, *c_it;
int e;
unsigned int cflags;
int ret;
int num;
int e_max;
int tcp_check;
struct sip_uri uri;
/* mem flag */
cflags = (_sctx->flags®_SAVE_MEMORY_FLAG)?FL_MEM:FL_NONE;
/* pack the contact_info */
if ( (ci=pack_ci( _m, 0, 0, cflags, _sctx->flags))==0 ) {
LM_ERR("failed to initial pack contact info\n");
goto error;
}
/* count how many contacts we have right now */
num = 0;
if (_sctx->max_contacts) {
c = _r->contacts;
while(c) {
if (VALID_CONTACT(c, act_time)) num++;
c = c->next;
}
}
if (is_tcp_based_proto(_m->rcv.proto) && (_m->flags&tcp_persistent_flag)) {
e_max = -1;
tcp_check = 1;
} else {
e_max = tcp_check = 0;
}
for( ; _c ; _c = get_next_contact(_c) ) {
/* calculate expires */
calc_contact_expires(_m, _c->expires, &e, _sctx);
/* search for the contact*/
ret = ul.get_ucontact( _r, &_c->uri, ci->callid, ci->cseq, &c);
if (ret==-1) {
LM_ERR("invalid cseq for aor <%.*s>\n",_r->aor.len,_r->aor.s);
rerrno = R_INV_CSEQ;
goto error;
} else if (ret==-2) {
continue;
}
if ( ret > 0 ) {
/* Contact not found -> expired? */
if (e==0)
continue;
/* we need to add a new contact -> too many ?? */
while (_sctx->max_contacts && num>=_sctx->max_contacts) {
if (_sctx->flags®_SAVE_FORCE_REG_FLAG) {
/* we are overflowing the number of maximum contacts,
so remove the oldest valid one to prevent this */
for( c_it=_r->contacts,c_last=NULL ; c_it ;
c_it=c_it->next )
if (VALID_CONTACT(c_it, act_time))
c_last=c_it;
if (c_last==NULL) {
LM_CRIT("BUG - overflow detected but no valid "
"contacts found :( \n");
goto error;
}
LM_DBG("overflow on inserting new contact -> removing "
"<%.*s>\n", c_last->c.len, c_last->c.s);
if (ul.delete_ucontact( _r, c_last, 0)!=0) {
LM_ERR("failed to remove contact\n");
goto error;
}
num--;
} else {
LM_INFO("too many contacts for AOR <%.*s>, max=%d\n",
_r->aor.len, _r->aor.s, _sctx->max_contacts);
rerrno = R_TOO_MANY;
return -1;
}
}
/* pack the contact_info */
if ( (ci=pack_ci( 0, _c, e, 0, _sctx->flags))==0 ) {
LM_ERR("failed to extract contact info\n");
goto error;
}
if (ul.insert_ucontact( _r, &_c->uri, ci, &c, 0) < 0) {
rerrno = R_UL_INS_C;
LM_ERR("failed to insert contact\n");
goto error;
}
} else {
/* Contact found */
if (e == 0) {
/* it's expired */
if (_sctx->flags®_SAVE_MEMORY_FLAG) {
c->flags |= FL_MEM;
} else {
c->flags &= ~FL_MEM;
}
if (ul.delete_ucontact(_r, c, 0) < 0) {
rerrno = R_UL_DEL_C;
LM_ERR("failed to delete contact\n");
goto error;
}
} else {
/* do update */
/* if the contact to be updated is not valid, it will be after
* update, so need to compensate the total number of contact */
if ( !VALID_CONTACT(c,act_time) )
num++;
while ( _sctx->max_contacts && num>_sctx->max_contacts ) {
if (_sctx->flags®_SAVE_FORCE_REG_FLAG) {
/* we are overflowing the number of maximum contacts,
so remove the first (oldest) one to prevent this
(but not the one to be updated !) */
for( c_it=_r->contacts,c_last=NULL ; c_it ;
c_it=c_it->next )
if (VALID_CONTACT(c_it, act_time) && c_it!=c)
c_last=c_it;
if (c_last==NULL) {
LM_CRIT("BUG - overflow detected but no "
"valid contacts found :( \n");
goto error;
}
LM_DBG("overflow on update -> removing contact "
"<%.*s>\n", c_last->c.len, c_last->c.s);
if (ul.delete_ucontact( _r, c_last, 0)!=0) {
LM_ERR("failed to remove contact\n");
goto error;
}
num--;
} else {
LM_INFO("too many contacts for AOR <%.*s>, max=%d\n",
_r->aor.len, _r->aor.s, _sctx->max_contacts);
rerrno = R_TOO_MANY;
return -1;
}
}
/* pack the contact specific info */
if ( (ci=pack_ci( 0, _c, e, 0, _sctx->flags))==0 ) {
LM_ERR("failed to pack contact specific info\n");
goto error;
}
if (ul.update_ucontact(_r, c, ci, 0) < 0) {
rerrno = R_UL_UPD_C;
LM_ERR("failed to update contact\n");
goto error;
}
}
}
if (tcp_check) {
/* parse contact uri to see if transport is TCP */
if (parse_uri( _c->uri.s, _c->uri.len, &uri)<0) {
LM_ERR("failed to parse contact <%.*s>\n",
_c->uri.len, _c->uri.s);
} else if (is_tcp_based_proto(uri.proto)) {
if (e_max>0) {
LM_WARN("multiple TCP contacts on single REGISTER\n");
}
if (e>e_max) e_max = e;
}
}
}
if ( tcp_check && e_max>-1 ) {
if (e_max) e_max -= act_time;
trans_set_dst_attr( &_m->rcv, DST_FCNTL_SET_LIFETIME,
(void*)(long)(e_max + 10) );
}
return 0;
error:
return -1;
}
int tcp_start_processes(int *chd_rank, int *startup_done)
{
int r, n;
int reader_fd[2]; /* for comm. with the tcp children read */
pid_t pid;
struct socket_info *si;
stat_var *load_p = NULL;
if (tcp_disabled)
return 0;
/* estimate max fd. no:
* 1 tcp send unix socket/all_proc,
* + 1 udp sock/udp proc + 1 tcp_child sock/tcp child*
* + no_listen_tcp */
for( r=0,n=PROTO_FIRST ; n<PROTO_LAST ; n++ )
if ( is_tcp_based_proto(n) )
for(si=protos[n].listeners; si ; si=si->next,r++ );
if (register_tcp_load_stat( &load_p )!=0) {
LM_ERR("failed to init tcp load statistic\n");
goto error;
}
/* start the TCP workers & create the socket pairs */
for(r=0; r<tcp_children_no; r++){
/* create sock to communicate from TCP main to worker */
if (socketpair(AF_UNIX, SOCK_STREAM, 0, reader_fd)<0){
LM_ERR("socketpair failed: %s\n", strerror(errno));
goto error;
}
(*chd_rank)++;
pid=internal_fork("SIP receiver TCP");
if (pid<0){
LM_ERR("fork failed\n");
goto error;
}else if (pid>0){
/* parent */
close(reader_fd[1]);
tcp_children[r].pid=pid;
tcp_children[r].proc_no=process_no;
tcp_children[r].busy=0;
tcp_children[r].n_reqs=0;
tcp_children[r].unix_sock=reader_fd[0];
}else{
/* child */
set_proc_attrs("TCP receiver");
pt[process_no].idx=r;
pt[process_no].load = load_p;
if (init_child(*chd_rank) < 0) {
LM_ERR("init_children failed\n");
report_failure_status();
if (startup_done)
*startup_done = -1;
exit(-1);
}
/* was startup route executed so far ? */
if (startup_done!=NULL && *startup_done==0 && r==0) {
LM_DBG("runing startup for first TCP\n");
if(run_startup_route()< 0) {
LM_ERR("Startup route processing failed\n");
report_failure_status();
*startup_done = -1;
exit(-1);
}
*startup_done = 1;
}
report_conditional_status( 1, 0);
tcp_worker_proc( reader_fd[1] );
exit(-1);
}
}
/* wait for the startup route to be executed */
if (startup_done)
while (!(*startup_done)) {
usleep(5);
handle_sigs();
}
/* start the TCP manager process */
if ( (pid=internal_fork( "TCP main"))<0 ) {
LM_CRIT("cannot fork tcp main process\n");
goto error;
}else if (pid==0){
/* child */
/* close the TCP inter-process sockets */
close(unix_tcp_sock);
unix_tcp_sock = -1;
close(pt[process_no].unix_sock);
pt[process_no].unix_sock = -1;
report_conditional_status( (!no_daemon_mode), 0);
tcp_main_server();
exit(-1);
}
return 0;
error:
return -1;
}
/* initializes the TCP network level in terms of data structures */
int tcp_init(void)
{
unsigned int i;
/* first we do auto-detection to see if there are any TCP based
* protocols loaded */
for ( i=PROTO_FIRST ; i<PROTO_LAST ; i++ )
if (is_tcp_based_proto(i)) {tcp_disabled=0;break;}
if (tcp_disabled)
return 0;
/* init tcp children array */
tcp_children = (struct tcp_child*)pkg_malloc
( tcp_children_no*sizeof(struct tcp_child) );
if (tcp_children==0) {
LM_CRIT("could not alloc tcp_children array in pkg memory\n");
goto error;
}
memset( tcp_children, 0, tcp_children_no*sizeof(struct tcp_child));
/* init globals */
connection_id=(int*)shm_malloc(sizeof(int));
if (connection_id==0){
LM_CRIT("could not alloc globals in shm memory\n");
goto error;
}
*connection_id=1;
memset( &tcp_parts, 0, TCP_PARTITION_SIZE*sizeof(struct tcp_partition));
/* init partitions */
for( i=0 ; i<TCP_PARTITION_SIZE ; i++ ) {
/* init lock */
tcp_parts[i].tcpconn_lock=lock_alloc();
if (tcp_parts[i].tcpconn_lock==0){
LM_CRIT("could not alloc lock\n");
goto error;
}
if (lock_init(tcp_parts[i].tcpconn_lock)==0){
LM_CRIT("could not init lock\n");
lock_dealloc((void*)tcp_parts[i].tcpconn_lock);
tcp_parts[i].tcpconn_lock=0;
goto error;
}
/* alloc hashtables*/
tcp_parts[i].tcpconn_aliases_hash=(struct tcp_conn_alias**)
shm_malloc(TCP_ALIAS_HASH_SIZE* sizeof(struct tcp_conn_alias*));
if (tcp_parts[i].tcpconn_aliases_hash==0){
LM_CRIT("could not alloc address hashtable in shm memory\n");
goto error;
}
tcp_parts[i].tcpconn_id_hash=(struct tcp_connection**)
shm_malloc(TCP_ID_HASH_SIZE*sizeof(struct tcp_connection*));
if (tcp_parts[i].tcpconn_id_hash==0){
LM_CRIT("could not alloc id hashtable in shm memory\n");
goto error;
}
/* init hashtables*/
memset((void*)tcp_parts[i].tcpconn_aliases_hash, 0,
TCP_ALIAS_HASH_SIZE * sizeof(struct tcp_conn_alias*));
memset((void*)tcp_parts[i].tcpconn_id_hash, 0,
TCP_ID_HASH_SIZE * sizeof(struct tcp_connection*));
}
return 0;
error:
/* clean-up */
tcp_destroy();
return -1;
}
static void tcp_main_server(void)
{
static unsigned int last_sec = 0;
int flags;
struct socket_info* si;
int n;
/* we run in a separate, dedicated process, with its own reactor
* (reactors are per process) */
if (init_worker_reactor("TCP_main", RCT_PRIO_MAX)<0)
goto error;
/* now start watching all the fds*/
/* add all the sockets we listens on for connections */
for( n=PROTO_FIRST ; n<PROTO_LAST ; n++ )
if ( is_tcp_based_proto(n) )
for( si=protos[n].listeners ; si ; si=si->next ) {
if ( (si->socket!=-1) &&
reactor_add_reader( si->socket, F_TCP_LISTENER,
RCT_PRIO_NET, si)<0 ) {
LM_ERR("failed to add listen socket to reactor\n");
goto error;
}
}
/* add all the unix sockets used for communcation with other opensips
* processes (get fd, new connection a.s.o) */
for (n=1; n<counted_processes; n++) {
/* skip myslef (as process) and -1 socks (disabled)
(we can't have 0, we never close it!) */
if (n!=process_no && pt[n].unix_sock>0)
if (reactor_add_reader( pt[n].unix_sock, F_TCP_WORKER,
RCT_PRIO_PROC, &pt[n])<0){
LM_ERR("failed to add process %d (%s) unix socket "
"to the fd list\n", n, pt[n].desc);
goto error;
}
}
/* add all the unix sokets used for communication with the tcp childs */
for (n=0; n<tcp_children_no; n++) {
/*we can't have 0, we never close it!*/
if (tcp_children[n].unix_sock>0) {
/* make socket non-blocking */
flags=fcntl(tcp_children[n].unix_sock, F_GETFL);
if (flags==-1){
LM_ERR("fcntl failed: (%d) %s\n", errno, strerror(errno));
goto error;
}
if (fcntl(tcp_children[n].unix_sock,F_SETFL,flags|O_NONBLOCK)==-1){
LM_ERR("set non-blocking failed: (%d) %s\n",
errno, strerror(errno));
goto error;
}
/* add socket for listening */
if (reactor_add_reader( tcp_children[n].unix_sock,
F_TCP_TCPWORKER, RCT_PRIO_PROC, &tcp_children[n])<0) {
LM_ERR("failed to add tcp child %d unix socket to "
"the fd list\n", n);
goto error;
}
}
}
/* main loop (requires "handle_io()" implementation) */
reactor_main_loop( TCP_MAIN_SELECT_TIMEOUT, error,
tcpconn_lifetime(last_sec, 0) );
error:
destroy_worker_reactor();
LM_CRIT("exiting...");
exit(-1);
}
/*! \brief removes first via & sends msg to the second */
int forward_reply(struct sip_msg* msg)
{
char* new_buf;
union sockaddr_union* to;
unsigned int new_len;
struct sr_module *mod;
int proto;
int id; /* used only by tcp*/
struct socket_info *send_sock;
char* s;
int len;
to=0;
id=0;
new_buf=0;
/*check if first via host = us */
if (check_via){
if (check_self(&msg->via1->host,
msg->via1->port?msg->via1->port:SIP_PORT,
msg->via1->proto)!=1){
LM_ERR("host in first via!=me : %.*s:%d\n",
msg->via1->host.len, msg->via1->host.s, msg->via1->port);
/* send error msg back? */
goto error;
}
}
/* quick hack, slower for multiple modules*/
for (mod=modules;mod;mod=mod->next){
if ((mod->exports) && (mod->exports->response_f)){
LM_DBG("found module %s, passing reply to it\n",
mod->exports->name);
if (mod->exports->response_f(msg)==0) goto skip;
}
}
/* if stateless fwd was disabled, we cannot have stateless replies here*/
if (sl_fwd_disabled)
goto skip;
/* we have to forward the reply stateless, so we need second via -bogdan*/
if (parse_headers( msg, HDR_VIA2_F, 0 )==-1
|| (msg->via2==0) || (msg->via2->error!=PARSE_OK))
{
/* no second via => error */
LM_ERR("no 2nd via found in reply\n");
goto error;
}
to=(union sockaddr_union*)pkg_malloc(sizeof(union sockaddr_union));
if (to==0){
LM_ERR("out of pkg memory\n");
goto error;
}
proto=msg->via2->proto;
if (update_sock_struct_from_via( to, msg, msg->via2 )==-1) goto error;
if (is_tcp_based_proto(proto)){
/* find id in i param if it exists */
if (msg->via1->i&&msg->via1->i->value.s){
s=msg->via1->i->value.s;
len=msg->via1->i->value.len;
id=reverse_hex2int(s, len);
}
}
send_sock = get_send_socket(msg, to, proto);
new_buf = build_res_buf_from_sip_res( msg, &new_len, send_sock,0);
if (!new_buf){
LM_ERR("failed to build rpl from req failed\n");
goto error;
}
if (msg_send(send_sock, proto, to, id, new_buf, new_len, msg)<0) {
update_stat( drp_rpls, 1);
goto error0;
}
update_stat( fwd_rpls, 1);
/*
* If no port is specified in the second via, then this
* message output a wrong port number - zero. Despite that
* the correct port is choosen in update_sock_struct_from_via,
* as its visible with su_getport(to); .
*/
LM_DBG("reply forwarded to %.*s:%d\n", msg->via2->host.len,
msg->via2->host.s, (unsigned short) msg->via2->port);
pkg_free(new_buf);
pkg_free(to);
skip:
return 0;
error:
update_stat( err_rpls, 1);
error0:
if (new_buf) pkg_free(new_buf);
if (to) pkg_free(to);
return -1;
}
/*! \note WARNING: buf must be 0 terminated (buf[len]=0) or some things might
* break (e.g.: modules/textops)
*/
int receive_msg(char* buf, unsigned int len, struct receive_info* rcv_info)
{
static context_p ctx = NULL;
struct sip_msg* msg;
struct timeval start;
int rc;
char *tmp;
str in_buff;
in_buff.len = len;
in_buff.s = buf;
/* the raw processing callbacks can change the buffer,
further use in_buff.s and at the end try to free in_buff.s
if changed by callbacks */
run_pre_raw_processing_cb(PRE_RAW_PROCESSING,&in_buff,NULL);
/* update the length for further processing */
len = in_buff.len;
msg=pkg_malloc(sizeof(struct sip_msg));
if (msg==0) {
LM_ERR("no pkg mem left for sip_msg\n");
goto error;
}
msg_no++;
/* number of vias parsed -- good for diagnostic info in replies */
via_cnt=0;
memset(msg,0, sizeof(struct sip_msg)); /* init everything to 0 */
/* fill in msg */
msg->buf=in_buff.s;
msg->len=len;
msg->rcv=*rcv_info;
msg->id=msg_no;
msg->ruri_q = Q_UNSPECIFIED;
if (parse_msg(in_buff.s,len, msg)!=0){
tmp=ip_addr2a(&(rcv_info->src_ip));
LM_ERR("Unable to parse msg received from [%s:%d]\n", tmp, rcv_info->src_port);
/* if a REQUEST msg was detected (first line was successfully parsed) we
should trigger the error route */
if ( msg->first_line.type==SIP_REQUEST && error_rlist.a!=NULL )
run_error_route(msg, 1);
goto parse_error;
}
LM_DBG("After parse_msg...\n");
start_expire_timer(start,execmsgthreshold);
/* ... clear branches from previous message */
clear_branches();
if (msg->first_line.type==SIP_REQUEST) {
update_stat( rcv_reqs, 1);
/* sanity checks */
if ((msg->via1==0) || (msg->via1->error!=PARSE_OK)){
/* no via, send back error ? */
LM_ERR("no via found in request\n");
update_stat( err_reqs, 1);
goto parse_error;
}
/* check if necessary to add receive?->moved to forward_req */
/* check for the alias stuff */
if (msg->via1->alias && tcp_accept_aliases &&
is_tcp_based_proto(rcv_info->proto) ) {
if (tcpconn_add_alias(rcv_info->proto_reserved1, msg->via1->port,
rcv_info->proto)!=0){
LM_WARN("tcp alias failed\n");
/* continue */
}
}
LM_DBG("preparing to run routing scripts...\n");
/* set request route type --bogdan*/
set_route_type( REQUEST_ROUTE );
/* prepare and set a new processing context for this request */
prepare_context( ctx, parse_error );
current_processing_ctx = ctx;
/* execute pre-script callbacks, if any;
* if some of the callbacks said not to continue with
* script processing, don't do so;
* if we are here basic sanity checks are already done
* (like presence of at least one via), so you can count
* on via1 being parsed in a pre-script callback --andrei
*/
rc = exec_pre_req_cb(msg);
if (rc == SCB_DROP_MSG) {
update_stat( drp_reqs, 1);
goto end; /* drop the message */
}
/* exec the routing script */
if (rc & SCB_RUN_TOP_ROUTE)
/* run the main request route and skip post_script callbacks
* if the TOBE_CONTINUE flag is returned */
if ( run_top_route(rlist[DEFAULT_RT].a, msg) & ACT_FL_TBCONT )
goto end;
/* execute post request-script callbacks */
if (rc & SCB_RUN_POST_CBS)
exec_post_req_cb(msg);
} else if (msg->first_line.type==SIP_REPLY) {
update_stat( rcv_rpls, 1);
/* sanity checks */
if ((msg->via1==0) || (msg->via1->error!=PARSE_OK)){
/* no via, send back error ? */
LM_ERR("no via found in reply\n");
update_stat( err_rpls, 1);
goto parse_error;
}
/* set reply route type --bogdan*/
set_route_type( ONREPLY_ROUTE );
/* prepare and set a new processing context for this reply */
prepare_context( ctx, parse_error );
current_processing_ctx = ctx;
/* execute pre-script callbacks, if any ;
* if some of the callbacks said not to continue with
* script processing, don't do so ;
* if we are here, basic sanity checks are already done
* (like presence of at least one via), so you can count
* on via1 being parsed in a pre-script callback --andrei
*/
rc = exec_pre_rpl_cb(msg);
if (rc == SCB_DROP_MSG) {
update_stat( drp_rpls, 1);
goto end; /* drop the reply */
}
/* exec the onreply routing script */
if (rc & SCB_RUN_TOP_ROUTE && onreply_rlist[DEFAULT_RT].a &&
(run_top_route(onreply_rlist[DEFAULT_RT].a,msg) & ACT_FL_DROP)
&& msg->REPLY_STATUS < 200) {
LM_DBG("dropping provisional reply %d\n", msg->REPLY_STATUS);
update_stat( drp_rpls, 1);
goto end; /* drop the message */
} else {
/* send the msg */
forward_reply(msg);
/* TODO - TX reply stat */
}
/* execute post reply-script callbacks */
if (rc & SCB_RUN_POST_CBS)
exec_post_rpl_cb(msg);
}
end:
/* if someone else set the context, then we should also "release" the
* static ctx. */
if (current_processing_ctx == NULL)
ctx = NULL;
else
context_destroy(CONTEXT_GLOBAL, ctx);
current_processing_ctx = NULL;
stop_expire_timer( start, execmsgthreshold, "msg processing",
msg->buf, msg->len, 0);
reset_longest_action_list(execmsgthreshold);
/* free possible loaded avps -bogdan */
reset_avps();
LM_DBG("cleaning up\n");
free_sip_msg(msg);
pkg_free(msg);
if (in_buff.s != buf)
pkg_free(in_buff.s);
return 0;
parse_error:
exec_parse_err_cb(msg);
free_sip_msg(msg);
pkg_free(msg);
error:
if (in_buff.s != buf)
pkg_free(in_buff.s);
return -1;
}