static int dst_to_msg(struct sip_msg *s_msg, struct sip_msg *d_msg)
{
/* move RURI */
if (set_ruri( d_msg, GET_RURI(s_msg))<0) {
LM_ERR("failed to set new RURI\n");
return -1;
}
/* move DURI (empty is accepted as reset) */
if (set_dst_uri( d_msg, &s_msg->dst_uri)<0) {
LM_ERR("failed to set DST URI\n");
return -1;
}
/* move PATH (empty is accepted as reset) */
if (set_path_vector( d_msg, & s_msg->path_vec)<0) {
LM_ERR("failed to set PATH\n");
return -1;
}
/* Qval */
set_ruri_q( d_msg, get_ruri_q(s_msg) );
/* BFLAGS */
setb0flags( d_msg, getb0flags(s_msg) );
/* socket info */
d_msg->force_send_socket = s_msg->force_send_socket;
return 0;
}
int lookup_path_to_contact(struct sip_msg* _m, char* contact_uri) {
ucontact_t* contact;
str s_contact_uri;
str path_dst;
get_act_time();
if (get_str_fparam(&s_contact_uri, _m, (fparam_t*) contact_uri) < 0) {
LM_ERR("failed to get RURI\n");
return -1;
}
LM_DBG("Looking up contact [%.*s]\n", s_contact_uri.len, s_contact_uri.s);
if (ul.get_ucontact(NULL, &s_contact_uri, 0, 0, 0, &contact) == 0) { //get_contact returns with lock
if (!VALID_CONTACT(contact, act_time)) {
LM_DBG("Contact is not valid...ignoring\n");
ul.release_ucontact(contact);
} else {
LM_DBG("CONTACT FOUND and path is [%.*s]\n", contact->path.len, contact->path.s);
if (get_path_dst_uri(&contact->path, &path_dst) < 0) {
LM_ERR("failed to get dst_uri for Path\n");
ul.release_ucontact(contact);
return -1;
}
if (set_path_vector(_m, &contact->path) < 0) {
LM_ERR("failed to set path vector\n");
ul.release_ucontact(contact);
return -1;
}
if (set_dst_uri(_m, &path_dst) < 0) {
LM_ERR("failed to set dst_uri of Path\n");
ul.release_ucontact(contact);
return -1;
}
ul.release_ucontact(contact);
return 1;
}
}
LM_DBG("no contact found for [%.*s]\n", s_contact_uri.len, s_contact_uri.s);
return -1;
}
/**
* Creates new "main" branch by making copy of branch-failure branch.
* Currently the following branch attributes are included:
* request-uri, ruid, path, instance, and branch flags.
*/
static int w_t_reuse_branch(sip_msg_t* msg, char *p1, char *p2)
{
tm_cell_t *t;
int branch;
if (msg == NULL) return -1;
/* first get the transaction */
if (_tmx_tmb.t_check(msg, 0) == -1) return -1;
if ((t = _tmx_tmb.t_gett()) == 0) {
LM_ERR("no transaction\n");
return -1;
}
switch (get_route_type()) {
case BRANCH_FAILURE_ROUTE:
/* use the reason of the winning reply */
if ((branch = _tmx_tmb.t_get_picked_branch()) < 0) {
LM_CRIT("no picked branch (%d) for a final response"
" in MODE_ONFAILURE\n", branch);
return -1;
}
if(rewrite_uri(msg, &(t->uac[branch].uri))<0) {
LM_WARN("failed to rewrite the r-uri\n");
}
set_ruid(msg, &(t->uac[branch].ruid));
if (t->uac[branch].path.len) {
if(set_path_vector(msg, &(t->uac[branch].path))<0) {
LM_WARN("failed to set the path vector\n");
}
} else {
reset_path_vector(msg);
}
setbflagsval(0, t->uac[branch].branch_flags);
set_instance(msg, &(t->uac[branch].instance));
return 1;
default:
LM_ERR("unsupported route_type %d\n", get_route_type());
return -1;
}
}
/*! \brief
* Lookup contact in the database and rewrite Request-URI
* \return: -1 : not found
* -2 : found but method not allowed
* -3 : error
*/
int lookup(struct sip_msg* _m, char* _t, char* _f, char* _s)
{
unsigned int flags;
urecord_t* r;
str aor, uri;
ucontact_t* ptr,*it;
int res;
int ret;
str path_dst;
str flags_s;
char* ua = NULL;
char* re_end = NULL;
int re_len = 0;
char tmp;
regex_t ua_re;
int regexp_flags = 0;
regmatch_t ua_match;
pv_value_t val;
int_str istr;
str sip_instance = {0,0},call_id = {0,0};
/* branch index */
int idx;
/* temporary branch values*/
int tlen;
char *turi;
qvalue_t tq;
flags = 0;
if (_f && _f[0]!=0) {
if (fixup_get_svalue( _m, (gparam_p)_f, &flags_s)!=0) {
LM_ERR("invalid owner uri parameter");
return -1;
}
for( res=0 ; res< flags_s.len ; res++ ) {
switch (flags_s.s[res]) {
case 'm': flags |= REG_LOOKUP_METHODFILTER_FLAG; break;
case 'b': flags |= REG_LOOKUP_NOBRANCH_FLAG; break;
case 'r': flags |= REG_BRANCH_AOR_LOOKUP_FLAG; break;
case 'u':
if (flags_s.s[res+1] != '/') {
LM_ERR("no regexp after 'u' flag");
break;
}
res++;
if ((re_end = strrchr(flags_s.s+res+1, '/')) == NULL) {
LM_ERR("no regexp after 'u' flag");
break;
}
res++;
re_len = re_end-flags_s.s-res;
if (re_len == 0) {
LM_ERR("empty regexp");
break;
}
ua = flags_s.s+res;
flags |= REG_LOOKUP_UAFILTER_FLAG;
LM_DBG("found regexp /%.*s/", re_len, ua);
res += re_len;
break;
case 'i': regexp_flags |= REG_ICASE; break;
case 'e': regexp_flags |= REG_EXTENDED; break;
default: LM_WARN("unsuported flag %c \n",flags_s.s[res]);
}
}
}
if (flags®_BRANCH_AOR_LOOKUP_FLAG) {
/* extract all the branches for further usage */
nbranches = 0;
while (
(turi=get_branch(nbranches, &tlen, &tq, NULL, NULL, NULL, NULL))
) {
/* copy uri */
branch_uris[nbranches].s = urimem[nbranches];
if (tlen) {
memcpy(branch_uris[nbranches].s, turi, tlen);
branch_uris[nbranches].len = tlen;
} else {
*branch_uris[nbranches].s = '\0';
branch_uris[nbranches].len = 0;
}
nbranches++;
}
clear_branches();
idx=0;
}
if (_s) {
if (pv_get_spec_value( _m, (pv_spec_p)_s, &val)!=0) {
LM_ERR("failed to get PV value\n");
return -1;
}
if ( (val.flags&PV_VAL_STR)==0 ) {
LM_ERR("PV vals is not string\n");
return -1;
}
uri = val.rs;
} else {
if (_m->new_uri.s) uri = _m->new_uri;
else uri = _m->first_line.u.request.uri;
}
if (extract_aor(&uri, &aor,&sip_instance,&call_id) < 0) {
LM_ERR("failed to extract address of record\n");
return -3;
}
get_act_time();
ul.lock_udomain((udomain_t*)_t, &aor);
res = ul.get_urecord((udomain_t*)_t, &aor, &r);
if (res > 0) {
LM_DBG("'%.*s' Not found in usrloc\n", aor.len, ZSW(aor.s));
ul.unlock_udomain((udomain_t*)_t, &aor);
return -1;
}
if (flags & REG_LOOKUP_UAFILTER_FLAG) {
tmp = *(ua+re_len);
*(ua+re_len) = '\0';
if (regcomp(&ua_re, ua, regexp_flags) != 0) {
LM_ERR("bad regexp '%s'\n", ua);
*(ua+re_len) = tmp;
return -1;
}
*(ua+re_len) = tmp;
}
ptr = r->contacts;
ret = -1;
/* look first for an un-expired and suported contact */
search_valid_contact:
while ( (ptr) &&
!(VALID_CONTACT(ptr,act_time) && (ret=-2) && allowed_method(_m,ptr,flags)))
ptr = ptr->next;
if (ptr==0) {
/* nothing found */
LM_DBG("nothing found !\n");
goto done;
}
ua_re_check(
ret = -1;
ptr = ptr->next;
goto search_valid_contact
);
if (sip_instance.len && sip_instance.s) {
LM_DBG("ruri has gruu in lookup\n");
/* uri has GRUU */
if (ptr->instance.len-2 != sip_instance.len ||
memcmp(ptr->instance.s+1,sip_instance.s,sip_instance.len)) {
LM_DBG("no match to sip instace - [%.*s] - [%.*s]\n",ptr->instance.len-2,ptr->instance.s+1,
sip_instance.len,sip_instance.s);
/* not the targeted instance, search some more */
ptr = ptr->next;
goto search_valid_contact;
}
LM_DBG("matched sip instace\n");
}
if (call_id.len && call_id.s) {
/* decide whether GRUU is expired or not
*
* first - match call-id */
if (ptr->callid.len != call_id.len ||
memcmp(ptr->callid.s,call_id.s,call_id.len)) {
LM_DBG("no match to call id - [%.*s] - [%.*s]\n",ptr->callid.len,ptr->callid.s,
call_id.len,call_id.s);
ptr = ptr->next;
goto search_valid_contact;
}
/* matched call-id, check if there are newer contacts with
* same sip instace bup newer last_modified */
it = ptr->next;
while ( it ) {
if (VALID_CONTACT(it,act_time)) {
if (it->instance.len-2 == sip_instance.len && sip_instance.s &&
memcmp(it->instance.s+1,sip_instance.s,sip_instance.len) == 0)
if (it->last_modified > ptr->last_modified) {
/* same instance id, but newer modified -> expired GRUU, no match at all */
break;
}
}
it=it->next;
}
if (it != NULL) {
ret = -1;
goto done;
}
}
LM_DBG("found a complete match\n");
ret = 1;
if (ptr) {
LM_DBG("setting as ruri <%.*s>\n",ptr->c.len,ptr->c.s);
if (set_ruri(_m, &ptr->c) < 0) {
LM_ERR("unable to rewrite Request-URI\n");
ret = -3;
goto done;
}
/* If a Path is present, use first path-uri in favour of
* received-uri because in that case the last hop towards the uac
* has to handle NAT. - agranig */
if (ptr->path.s && ptr->path.len) {
if (get_path_dst_uri(&ptr->path, &path_dst) < 0) {
LM_ERR("failed to get dst_uri for Path\n");
ret = -3;
goto done;
}
if (set_path_vector(_m, &ptr->path) < 0) {
LM_ERR("failed to set path vector\n");
ret = -3;
goto done;
}
if (set_dst_uri(_m, &path_dst) < 0) {
LM_ERR("failed to set dst_uri of Path\n");
ret = -3;
goto done;
}
} else if (ptr->received.s && ptr->received.len) {
if (set_dst_uri(_m, &ptr->received) < 0) {
ret = -3;
goto done;
}
}
set_ruri_q( _m, ptr->q);
setbflag( _m, 0, ptr->cflags);
if (ptr->sock)
_m->force_send_socket = ptr->sock;
/* populate the 'attributes' avp */
if (attr_avp_name != -1) {
istr.s = ptr->attr;
if (add_avp_last(AVP_VAL_STR, attr_avp_name, istr) != 0) {
LM_ERR("Failed to populate attr avp!\n");
}
}
ptr = ptr->next;
}
/* Append branches if enabled */
/* If we got to this point and the URI had a ;gr parameter and it was matched
* to a contact. No point in branching */
if ( flags®_LOOKUP_NOBRANCH_FLAG || (sip_instance.len && sip_instance.s) ) goto done;
LM_DBG("looking for branches\n");
do {
for( ; ptr ; ptr = ptr->next ) {
if (VALID_CONTACT(ptr, act_time) && allowed_method(_m,ptr,flags)) {
path_dst.len = 0;
if(ptr->path.s && ptr->path.len
&& get_path_dst_uri(&ptr->path, &path_dst) < 0) {
LM_ERR("failed to get dst_uri for Path\n");
continue;
}
ua_re_check(continue);
/* The same as for the first contact applies for branches
* regarding path vs. received. */
LM_DBG("setting branch <%.*s>\n",ptr->c.len,ptr->c.s);
if (append_branch(_m,&ptr->c,path_dst.len?&path_dst:&ptr->received,
&ptr->path, ptr->q, ptr->cflags, ptr->sock) == -1) {
LM_ERR("failed to append a branch\n");
/* Also give a chance to the next branches*/
continue;
}
/* populate the 'attributes' avp */
if (attr_avp_name != -1) {
istr.s = ptr->attr;
if (add_avp_last(AVP_VAL_STR, attr_avp_name, istr) != 0) {
LM_ERR("Failed to populate attr avp!\n");
}
}
}
}
/* 0 branches condition also filled; idx initially -1*/
if (!(flags®_BRANCH_AOR_LOOKUP_FLAG) || idx == nbranches)
goto done;
/* relsease old aor lock */
ul.unlock_udomain((udomain_t*)_t, &aor);
ul.release_urecord(r, 0);
/* idx starts from -1 */
uri = branch_uris[idx];
if (extract_aor(&uri, &aor, NULL, &call_id) < 0) {
LM_ERR("failed to extract address of record for branch uri\n");
return -3;
}
/* release old urecord */
/* get lock on new aor */
LM_DBG("getting contacts from aor [%.*s]"
"in branch %d\n", aor.len, aor.s, idx);
ul.lock_udomain((udomain_t*)_t, &aor);
res = ul.get_urecord((udomain_t*)_t, &aor, &r);
if (res > 0) {
LM_DBG("'%.*s' Not found in usrloc\n", aor.len, ZSW(aor.s));
goto done;
}
idx++;
ptr = r->contacts;
} while (1);
/*! \brief
* Fills the common part (for all contacts) of the info structure
*/
static inline ucontact_info_t* pack_ci( struct sip_msg* _m, contact_t* _c,
unsigned int _e, unsigned int _f, unsigned int _flags)
{
static ucontact_info_t ci;
static str no_ua = str_init("n/a");
static str callid;
static str path_received = {0,0};
static str path;
static str received = {0,0};
static int received_found;
static unsigned int allowed, allow_parsed;
static struct sip_msg *m = 0;
int_str val;
if (_m!=0) {
memset( &ci, 0, sizeof(ucontact_info_t));
/* Get callid of the message */
callid = _m->callid->body;
trim_trailing(&callid);
if (callid.len > CALLID_MAX_SIZE) {
rerrno = R_CALLID_LEN;
LM_ERR("callid too long\n");
goto error;
}
ci.callid = &callid;
/* Get CSeq number of the message */
if (str2int(&get_cseq(_m)->number, (unsigned int*)&ci.cseq) < 0) {
rerrno = R_INV_CSEQ;
LM_ERR("failed to convert cseq number\n");
goto error;
}
/* set received socket */
if ( _flags®_SAVE_SOCKET_FLAG) {
ci.sock = get_sock_hdr(_m);
if (ci.sock==0)
ci.sock = _m->rcv.bind_address;
} else {
ci.sock = _m->rcv.bind_address;
}
/* additional info from message */
if (parse_headers(_m, HDR_USERAGENT_F, 0) != -1 && _m->user_agent &&
_m->user_agent->body.len>0 && _m->user_agent->body.len<UA_MAX_SIZE) {
ci.user_agent = &_m->user_agent->body;
} else {
ci.user_agent = &no_ua;
}
/* extract Path headers */
if ( _flags®_SAVE_PATH_FLAG ) {
if (build_path_vector(_m, &path, &path_received, _flags) < 0) {
rerrno = R_PARSE_PATH;
goto error;
}
if (path.len && path.s) {
ci.path = &path;
/* save in msg too for reply */
if (set_path_vector(_m, &path) < 0) {
rerrno = R_PARSE_PATH;
goto error;
}
}
}
ci.last_modified = act_time;
/* set flags */
ci.flags = _f;
ci.cflags = getb0flags();
/* get received */
if (path_received.len && path_received.s) {
ci.cflags |= ul.nat_flag;
ci.received = path_received;
}
allow_parsed = 0; /* not parsed yet */
received_found = 0; /* not found yet */
m = _m; /* remember the message */
}
if(_c!=0) {
/* Calculate q value of the contact */
if (calc_contact_q(_c->q, &ci.q) < 0) {
rerrno = R_INV_Q;
LM_ERR("failed to calculate q\n");
goto error;
}
/* set expire time */
ci.expires = _e;
/* Get methods of contact */
if (_c->methods) {
if (parse_methods(&(_c->methods->body), &ci.methods) < 0) {
rerrno = R_PARSE;
LM_ERR("failed to parse contact methods\n");
goto error;
}
} else {
/* check on Allow hdr */
if (allow_parsed == 0) {
if (m && parse_allow( m ) != -1) {
allowed = get_allow_methods(m);
} else {
allowed = ALL_METHODS;
}
allow_parsed = 1;
}
ci.methods = allowed;
}
/* get received */
if (ci.received.len==0) {
if (_c->received) {
ci.received = _c->received->body;
} else {
if (received_found==0) {
memset(&val, 0, sizeof(int_str));
if (rcv_avp_name>=0
&& search_first_avp(rcv_avp_type, rcv_avp_name, &val, 0)
&& val.s.len > 0) {
if (val.s.len>RECEIVED_MAX_SIZE) {
rerrno = R_CONTACT_LEN;
LM_ERR("received too long\n");
goto error;
}
received = val.s;
} else {
received.s = 0;
received.len = 0;
}
received_found = 1;
}
ci.received = received;
}
}
}
return &ci;
error:
return 0;
}
static int ul_contact_event_to_msg(struct sip_msg *req)
{
static enum ul_attrs { UL_URI, UL_RECEIVED, UL_PATH, UL_QVAL,
UL_SOCKET, UL_BFLAGS, UL_ATTR, UL_MAX } ul_attr;
/* keep the names of the AVPs aligned with the contact-related events
* from USRLOC module !!!! */
static str ul_names[UL_MAX]= {str_init("uri"),str_init("received"),
str_init("path"),str_init("qval"),
str_init("socket"),str_init("bflags"),
str_init("attr") };
static int avp_ids[UL_MAX] = { -1, -1, -1, -1, -1, -1, -1};
int_str vals[UL_MAX];
int proto, port;
str host;
str path_dst;
if (avp_ids[0]==-1) {
/* init the avp IDs mapping us on the UL event */
for( ul_attr=0 ; ul_attr<UL_MAX ; ul_attr++ ){
if (parse_avp_spec( &ul_names[ul_attr], &avp_ids[ul_attr])<0) {
LM_ERR("failed to init UL AVP %d/%s\n",
ul_attr,ul_names[ul_attr].s);
avp_ids[0] = -1;
return -1;
}
}
}
/* fetch the AVP values one by one */
for( ul_attr=0 ; ul_attr<UL_MAX ; ul_attr++ ) {
if (search_first_avp(0, avp_ids[ul_attr], &vals[ul_attr], NULL)==NULL){
LM_ERR("cannot find AVP(%d) for event attr %d/%s\n",
avp_ids[ul_attr], ul_attr, ul_names[ul_attr].s);
return -1;
}
}
/* OK, we have the values, lets inject them into the SIP msg */
LM_DBG("injecting new branch: uri=<%.*s>, received=<%.*s>,"
"path=<%.*s>, qval=%d, socket=<%.*s>, bflags=%X, attr=<%.*s>\n",
vals[UL_URI].s.len, vals[UL_URI].s.s,
vals[UL_RECEIVED].s.len, vals[UL_RECEIVED].s.s,
vals[UL_PATH].s.len, vals[UL_PATH].s.s,
vals[UL_QVAL].n,
vals[UL_SOCKET].s.len, vals[UL_SOCKET].s.s,
vals[UL_BFLAGS].n,
vals[UL_ATTR].s.len, vals[UL_ATTR].s.s);
/* contact URI goes as RURI */
if (set_ruri( req, &vals[UL_URI].s)<0) {
LM_ERR("failed to set new RURI\n");
return -1;
}
/* contact PATH goes as path */
if (vals[UL_PATH].s.len) {
if (get_path_dst_uri(&vals[UL_PATH].s, &path_dst) < 0) {
LM_ERR("failed to get dst_uri for Path\n");
return -1;
}
if (set_dst_uri( req, &path_dst) < 0) {
LM_ERR("failed to set dst_uri of Path\n");
return -1;
}
if (set_path_vector( req, &vals[UL_PATH].s)<0) {
LM_ERR("failed to set PATH\n");
return -1;
}
} else
/* contact RECEIVED goes as DURI */
if (vals[UL_RECEIVED].s.len) {
if (set_dst_uri( req, &vals[UL_RECEIVED].s)<0) {
LM_ERR("failed to set DST URI\n");
return -1;
}
}
/* contact Qval goes as RURI Qval */
set_ruri_q( req, vals[UL_QVAL].n);
/* contact BFLAGS goes as RURI bflags */
setb0flags( req, vals[UL_BFLAGS].n);
/* socket info */
if (vals[UL_SOCKET].s.len) {
if ( parse_phostport( vals[UL_SOCKET].s.s, vals[UL_SOCKET].s.len,
&host.s, &host.len, &port, &proto) < 0) {
LM_ERR("failed to parse socket from Event attr <%.*s>\n",
vals[UL_SOCKET].s.len, vals[UL_SOCKET].s.s);
} else {
req->force_send_socket = grep_sock_info( &host,
(unsigned short)port, (unsigned short)proto);
}
}
return 0;
}
/*! \brief
* Lookup contact in the database and rewrite Request-URI
* \return: -1 : not found
* -2 : found but method not allowed
* -3 : error
*/
int lookup(struct sip_msg* _m, udomain_t* _d) {
impurecord_t* r;
str aor, uri;
ucontact_t* ptr;
int res;
int ret;
str path_dst;
flag_t old_bflags;
int i = 0;
if (_m->new_uri.s) uri = _m->new_uri;
else uri = _m->first_line.u.request.uri;
if (extract_aor(&uri, &aor) < 0) {
LM_ERR("failed to extract address of record\n");
return -3;
}
get_act_time();
ul.lock_udomain(_d, &aor);
res = ul.get_impurecord(_d, &aor, &r);
if (res > 0) {
LM_DBG("'%.*s' Not found in usrloc\n", aor.len, ZSW(aor.s));
ul.unlock_udomain(_d, &aor);
return -1;
}
ret = -1;
while (i < MAX_CONTACTS_PER_IMPU && (ptr = r->newcontacts[i])) {
if (VALID_CONTACT(ptr, act_time) && allowed_method(_m, ptr)) {
LM_DBG("Found a valid contact [%.*s]\n", ptr->c.len, ptr->c.s);
i++;
break;
}
i++;
}
/* look first for an un-expired and suported contact */
if (ptr == 0) {
/* nothing found */
goto done;
}
ret = 1;
if (ptr) {
if (rewrite_uri(_m, &ptr->c) < 0) {
LM_ERR("unable to rewrite Request-URI\n");
ret = -3;
goto done;
}
/* reset next hop address */
reset_dst_uri(_m);
/* If a Path is present, use first path-uri in favour of
* received-uri because in that case the last hop towards the uac
* has to handle NAT. - agranig */
if (ptr->path.s && ptr->path.len) {
if (get_path_dst_uri(&ptr->path, &path_dst) < 0) {
LM_ERR("failed to get dst_uri for Path\n");
ret = -3;
goto done;
}
if (set_path_vector(_m, &ptr->path) < 0) {
LM_ERR("failed to set path vector\n");
ret = -3;
goto done;
}
if (set_dst_uri(_m, &path_dst) < 0) {
LM_ERR("failed to set dst_uri of Path\n");
ret = -3;
goto done;
}
} else if (ptr->received.s && ptr->received.len) {
if (set_dst_uri(_m, &ptr->received) < 0) {
ret = -3;
goto done;
}
}
set_ruri_q(ptr->q);
old_bflags = 0;
getbflagsval(0, &old_bflags);
setbflagsval(0, old_bflags | ptr->cflags);
if (ptr->sock)
set_force_socket(_m, ptr->sock);
ptr = ptr->next;
}
/* Append branches if enabled */
if (!cfg_get(registrar, registrar_cfg, append_branches)) goto done;
//the last i was the first valid contact we found - let's go through the rest of valid contacts and append the branches.
while (i < MAX_CONTACTS_PER_IMPU && (ptr = r->newcontacts[i])) {
if (VALID_CONTACT(ptr, act_time) && allowed_method(_m, ptr)) {
path_dst.len = 0;
if (ptr->path.s && ptr->path.len
&& get_path_dst_uri(&ptr->path, &path_dst) < 0) {
LM_ERR("failed to get dst_uri for Path\n");
continue;
}
/* The same as for the first contact applies for branches
* regarding path vs. received. */
if (km_append_branch(_m, &ptr->c, path_dst.len ? &path_dst : &ptr->received,
&ptr->path, ptr->q, ptr->cflags, ptr->sock) == -1) {
LM_ERR("failed to append a branch\n");
/* Also give a chance to the next branches*/
continue;
}
}
i++;
}
done:
ul.unlock_udomain(_d, &aor);
return ret;
}
int sbranch_set_ruri(sip_msg_t *msg)
{
str sv;
flag_t old_bflags;
branch_t *br;
int ret;
ret = 0;
br = &_pv_sbranch;
if(br->len==0)
return -1;
sv.s = br->uri;
sv.len = br->len;
if (rewrite_uri(msg, &sv) < 0) {
LM_ERR("unable to rewrite Request-URI\n");
ret = -3;
goto error;
}
/* reset next hop address */
reset_dst_uri(msg);
if(br->dst_uri_len>0) {
sv.s = br->dst_uri;
sv.len = br->dst_uri_len;
if (set_dst_uri(msg, &sv) < 0) {
ret = -3;
goto error;
}
}
reset_path_vector(msg);
if(br->path_len==0) {
sv.s = br->path;
sv.len = br->path_len;
if(set_path_vector(msg, &sv) < 0) {
ret = -4;
goto error;
}
}
reset_instance(msg);
if (br->instance_len) {
sv.s = br->instance;
sv.len = br->instance_len;
if (set_instance(msg, &sv) < 0) {
ret = -5;
goto error;
}
}
reset_ruid(msg);
if (br->ruid_len) {
sv.s = br->ruid;
sv.len = br->ruid_len;
if (set_ruid(msg, &sv) < 0) {
ret = -6;
goto error;
}
}
reset_ua(msg);
if (br->location_ua_len) {
sv.s = br->location_ua;
sv.len = br->location_ua_len;
if (set_ua(msg, &sv) < 0) {
ret = -7;
goto error;
}
}
if (br->force_send_socket)
set_force_socket(msg, br->force_send_socket);
msg->reg_id = br->reg_id;
set_ruri_q(br->q);
old_bflags = 0;
getbflagsval(0, &old_bflags);
setbflagsval(0, old_bflags|br->flags);
return 0;
error:
return ret;
}
/*! \brief
* Fills the common part (for all contacts) of the info structure
*/
static inline ucontact_info_t* pack_ci( struct sip_msg* _m, contact_t* _c, unsigned int _e, unsigned int _f, int _use_regid)
{
static ucontact_info_t ci;
static str no_ua = str_init("n/a");
static str callid;
static str path_received = {0,0};
static str path;
static str received = {0,0};
static int received_found;
static unsigned int allowed, allow_parsed;
static struct sip_msg *m = 0;
int_str val;
if (_m!=0) {
memset( &ci, 0, sizeof(ucontact_info_t));
/* Get callid of the message */
callid = _m->callid->body;
trim_trailing(&callid);
if (callid.len > CALLID_MAX_SIZE) {
rerrno = R_CALLID_LEN;
LM_ERR("callid too long\n");
goto error;
}
ci.callid = &callid;
/* Get CSeq number of the message */
if (str2int(&get_cseq(_m)->number, (unsigned int*)&ci.cseq) < 0) {
rerrno = R_INV_CSEQ;
LM_ERR("failed to convert cseq number\n");
goto error;
}
/* set received socket */
if (_m->flags&sock_flag) {
ci.sock = get_sock_val(_m);
if (ci.sock==0)
ci.sock = _m->rcv.bind_address;
} else {
ci.sock = _m->rcv.bind_address;
}
/* set tcp connection id */
if (_m->rcv.proto==PROTO_TCP || _m->rcv.proto==PROTO_TLS
|| _m->rcv.proto==PROTO_WS || _m->rcv.proto==PROTO_WSS) {
ci.tcpconn_id = _m->rcv.proto_reserved1;
} else {
ci.tcpconn_id = -1;
}
/* additional info from message */
if (parse_headers(_m, HDR_USERAGENT_F, 0) != -1 && _m->user_agent &&
_m->user_agent->body.len>0 && _m->user_agent->body.len<MAX_UA_SIZE) {
ci.user_agent = &_m->user_agent->body;
} else {
ci.user_agent = &no_ua;
}
/* extract Path headers */
if (path_enabled) {
if (build_path_vector(_m, &path, &path_received) < 0) {
rerrno = R_PARSE_PATH;
goto error;
}
if (path.len && path.s) {
ci.path = &path;
if (path_mode != PATH_MODE_OFF) {
/* save in msg too for reply */
if (set_path_vector(_m, &path) < 0) {
rerrno = R_PARSE_PATH;
goto error;
}
}
}
}
ci.last_modified = act_time;
/* set flags */
ci.flags = _f;
getbflagsval(0, &ci.cflags);
/* get received */
if (path_received.len && path_received.s) {
ci.cflags |= ul.nat_flag;
ci.received = path_received;
}
allow_parsed = 0; /* not parsed yet */
received_found = 0; /* not found yet */
m = _m; /* remember the message */
}
else {
memset( &ci.instance, 0, sizeof(str));
}
if(_c!=0) {
/* hook uri address - should be more than 'sip:' chars */
if(_c->uri.s!=NULL && _c->uri.len>4)
ci.c = &_c->uri;
/* Calculate q value of the contact */
if (m && m->id == q_override_msg_id)
{
ci.q = q_override_value;
}
else if (calc_contact_q(_c->q, &ci.q) < 0) {
rerrno = R_INV_Q;
LM_ERR("failed to calculate q\n");
goto error;
}
/* set expire time */
ci.expires = _e;
/* Get methods of contact */
if (_c->methods) {
if (parse_methods(&(_c->methods->body), &ci.methods) < 0) {
rerrno = R_PARSE;
LM_ERR("failed to parse contact methods\n");
goto error;
}
} else {
/* check on Allow hdr */
if (allow_parsed == 0) {
if (m && parse_allow( m ) != -1) {
allowed = get_allow_methods(m);
} else {
allowed = ALL_METHODS;
}
allow_parsed = 1;
}
ci.methods = allowed;
}
/* get received */
if (ci.received.len==0) {
if (_c->received) {
ci.received = _c->received->body;
} else {
if (received_found==0) {
memset(&val, 0, sizeof(int_str));
if (rcv_avp_name.n!=0
&& search_first_avp(rcv_avp_type, rcv_avp_name, &val, 0)
&& val.s.len > 0) {
if (val.s.len>RECEIVED_MAX_SIZE) {
rerrno = R_CONTACT_LEN;
LM_ERR("received too long\n");
goto error;
}
received = val.s;
} else {
received.s = 0;
received.len = 0;
}
received_found = 1;
}
ci.received = received;
}
}
if(_c->instance!=NULL && _c->instance->body.len>0)
ci.instance = _c->instance->body;
if(_use_regid && _c->instance!=NULL && _c->reg_id!=NULL && _c->reg_id->body.len>0) {
if(str2int(&_c->reg_id->body, &ci.reg_id)<0 || ci.reg_id==0)
{
LM_ERR("invalid reg-id value\n");
goto error;
}
}
if(sruid_next(&_reg_sruid)<0)
goto error;
ci.ruid = _reg_sruid.uid;
LM_DBG("generated ruid is: %.*s\n", ci.ruid.len, ci.ruid.s);
}
return &ci;
error:
return 0;
}
/*! \brief
* Adds to request a destination set that includes all highest priority
* class contacts in "serial_avp" AVP. If called from a route block,
* rewrites the request uri with first contact and adds the remaining
* contacts as branches. If called from failure route block, adds all
* contacts as brances. Removes added contacts from "serial_avp" AVP.
*/
int next_branches( struct sip_msg *msg)
{
struct usr_avp *avp, *prev;
int_str val;
struct socket_info *sock_info;
qvalue_t q;
str uri, dst_uri, path;
char *p;
unsigned int flags;
int rval;
if (route_type != REQUEST_ROUTE && route_type != FAILURE_ROUTE ) {
/* unsupported route type */
LM_ERR("called from unsupported route type %d\n", route_type);
goto error;
}
/* Find first avp */
avp = search_first_avp(0, serial_avp, &val, 0);
if (!avp) {
LM_DBG("no AVPs -- we are done!\n");
goto error;
}
if (!val.s.s) {
LM_ERR("invalid avp value\n");
goto error;
}
/* *sock_info, flags, q, uri, 0, dst_uri, 0, path, 0,... */
p = val.s.s;
sock_info = (struct socket_info*) *((long*) p);
p += sizeof(long);
flags = (unsigned int) *((long*) p);
p += sizeof(long);
q = (unsigned int) *((long*) p);
p += sizeof(long);
uri.s = p;
uri.len = strlen(p);
p += uri.len + 1;
dst_uri.s = p;
dst_uri.len = strlen(p);
p += dst_uri.len + 1;
path.s = p;
path.len = strlen(p);
/* Set Request-URI */
if ( set_ruri(msg, &uri) == -1
|| set_dst_uri(msg, &dst_uri) == -1
|| set_path_vector(msg, &path) == -1 )
goto error1;
msg->force_send_socket = sock_info;
set_ruri_q( q );
setb0flags( flags );
LM_DBG("Msg information <%.*s,%.*s,%.*s,%d,%u> (avp flag=%u)\n",
uri.len, uri.s,
dst_uri.len, dst_uri.s,
path.len, path.s,
q, flags, avp->flags);
if (avp->flags & Q_FLAG) {
destroy_avp(avp);
goto done;
}
prev = avp;
avp = search_next_avp(prev, &val);
destroy_avp(prev);
/* Append branches until out of branches or Q_FLAG is set */
while (avp != NULL) {
if (!val.s.s) {
LM_ERR("invalid avp value\n");
continue;
}
p = val.s.s;
sock_info = (struct socket_info*) *((long*) p);
p += sizeof(long);
flags = (unsigned int) *((long*) p);
p += sizeof(long);
q = (unsigned int) *((long*) p);
p += sizeof(long);
uri.s = p;
uri.len = strlen(p);
p += strlen(p) + 1;
dst_uri.s = p;
dst_uri.len = strlen(p);
p += strlen(p) + 1;
path.s = p;
path.len = strlen(p);
LM_DBG("Branch information <%.*s,%.*s,%.*s,%d,%u> (avp flag=%u)\n",
uri.len, uri.s,
dst_uri.len, dst_uri.s,
path.len, path.s,
q, flags, avp->flags);
rval = append_branch(msg, &uri, &dst_uri, &path,
q, flags, sock_info);
if (rval == -1) {
LM_ERR("append_branch failed\n");
goto error1;
}
if (avp->flags & Q_FLAG) {
destroy_avp(avp);
goto done;
}
prev = avp;
avp = search_next_avp(prev, &val);
destroy_avp(prev);
}
return 2;
done:
return (search_next_avp(avp, NULL)==NULL)?2:1;
error1:
destroy_avp(avp);
error:
return -1;
}
/*! \brief
* Lookup contact in the database and rewrite Request-URI
* \return: -1 : not found
* -2 : found but method not allowed
* -3 : error
*/
int lookup(struct sip_msg* _m, udomain_t* _d, str* _uri)
{
urecord_t* r;
str aor, uri;
sip_uri_t puri;
ucontact_t* ptr = 0;
int res;
int ret;
str path_dst;
flag_t old_bflags;
int i;
str inst = {0};
unsigned int ahash = 0;
sr_xavp_t *xavp=NULL;
sr_xavp_t *list=NULL;
str xname = {"ruid", 4};
sr_xval_t xval;
ret = -1;
if (_m->new_uri.s) uri = _m->new_uri;
else uri = _m->first_line.u.request.uri;
if (extract_aor((_uri)?_uri:&uri, &aor, &puri) < 0) {
LM_ERR("failed to extract address of record\n");
return -3;
}
/* check if gruu */
if(puri.gr.s!=NULL)
{
if(puri.gr_val.len>0) {
/* pub-gruu */
inst = puri.gr_val;
LM_DBG("looking up pub gruu [%.*s]\n", inst.len, inst.s);
} else {
/* temp-gruu */
ahash = 0;
inst = puri.user;
for(i=inst.len-1; i>=0; i--)
{
if(inst.s[i]==REG_GRUU_SEP)
break;
ahash <<= 4;
if(inst.s[i] >='0' && inst.s[i] <='9') ahash+=inst.s[i] -'0';
else if (inst.s[i] >='a' && inst.s[i] <='f') ahash+=inst.s[i] -'a'+10;
else if (inst.s[i] >='A' && inst.s[i] <='F') ahash+=inst.s[i] -'A'+10;
else {
LM_ERR("failed to extract temp gruu - invalid hash\n");
return -3;
}
}
if(i<0) {
LM_ERR("failed to extract temp gruu - invalid format\n");
return -3;
}
inst.len = i;
LM_DBG("looking up temp gruu [%u / %.*s]\n", ahash, inst.len, inst.s);
}
}
get_act_time();
if(puri.gr.s==NULL || puri.gr_val.len>0)
{
/* aor or pub-gruu lookup */
ul.lock_udomain(_d, &aor);
res = ul.get_urecord(_d, &aor, &r);
if (res > 0) {
LM_DBG("'%.*s' Not found in usrloc\n", aor.len, ZSW(aor.s));
ul.unlock_udomain(_d, &aor);
return -1;
}
ptr = r->contacts;
ret = -1;
/* look first for an un-expired and suported contact */
while (ptr) {
if(VALID_CONTACT(ptr,act_time)) {
if(allowed_method(_m,ptr)) {
/* match on instance, if pub-gruu */
if(inst.len>0) {
if(reg_cmp_instances(&inst, &ptr->instance)==0)
{
/* pub-gruu - found by instance */
LM_DBG("contact for [%.*s] found by pub gruu [%.*s]\n",
aor.len, ZSW(aor.s), inst.len, inst.s);
break;
}
} else {
/* no-gruu - found by address */
LM_DBG("contact for [%.*s] found by address\n",
aor.len, ZSW(aor.s));
break;
}
} else {
LM_DBG("contact for [%.*s] cannot handle the SIP method\n",
aor.len, ZSW(aor.s));
ret = -2;
}
}
ptr = ptr->next;
}
if (ptr==0) {
/* nothing found */
LM_DBG("'%.*s' has no valid contact in usrloc\n", aor.len, ZSW(aor.s));
goto done;
}
} else {
/* temp-gruu lookup */
res = ul.get_urecord_by_ruid(_d, ahash, &inst, &r, &ptr);
if(res<0) {
LM_DBG("temp gruu '%.*s' not found in usrloc\n", aor.len, ZSW(aor.s));
return -1;
}
aor = *ptr->aor;
/* test if un-expired and suported contact */
if( (ptr) && !(VALID_CONTACT(ptr,act_time)
&& (ret=-2) && allowed_method(_m,ptr)))
goto done;
LM_DBG("contact for [%.*s] found by temp gruu [%.*s / %u]\n",
aor.len, ZSW(aor.s), inst.len, inst.s, ahash);
}
ret = 1;
if (ptr) {
if (rewrite_uri(_m, &ptr->c) < 0) {
LM_ERR("unable to rewrite Request-URI\n");
ret = -3;
goto done;
}
/* reset next hop address */
reset_dst_uri(_m);
/* add xavp with details of the record (ruid, ...) */
if(reg_xavp_rcd.s!=NULL)
{
list = xavp_get(®_xavp_rcd, NULL);
xavp = list;
memset(&xval, 0, sizeof(sr_xval_t));
xval.type = SR_XTYPE_STR;
xval.v.s = ptr->ruid;
xavp_add_value(&xname, &xval, &xavp);
if(list==NULL)
{
/* no reg_xavp_rcd xavp in root list - add it */
xval.type = SR_XTYPE_XAVP;
xval.v.xavp = xavp;
xavp_add_value(®_xavp_rcd, &xval, NULL);
}
}
/* If a Path is present, use first path-uri in favour of
* received-uri because in that case the last hop towards the uac
* has to handle NAT. - agranig */
if (ptr->path.s && ptr->path.len) {
if (get_path_dst_uri(&ptr->path, &path_dst) < 0) {
LM_ERR("failed to get dst_uri for Path\n");
ret = -3;
goto done;
}
if (set_path_vector(_m, &ptr->path) < 0) {
LM_ERR("failed to set path vector\n");
ret = -3;
goto done;
}
if (set_dst_uri(_m, &path_dst) < 0) {
LM_ERR("failed to set dst_uri of Path\n");
ret = -3;
goto done;
}
} else if (ptr->received.s && ptr->received.len) {
if (set_dst_uri(_m, &ptr->received) < 0) {
ret = -3;
goto done;
}
}
if (ptr->instance.len) {
if (set_instance(_m, &(ptr->instance)) < 0) {
ret = -3;
goto done;
}
}
_m->reg_id = ptr->reg_id;
if (ptr->ruid.len) {
if (set_ruid(_m, &(ptr->ruid)) < 0) {
ret = -3;
goto done;
}
}
if (ptr->user_agent.len) {
if (set_ua(_m, &(ptr->user_agent)) < 0) {
ret = -3;
goto done;
}
}
set_ruri_q(ptr->q);
old_bflags = 0;
getbflagsval(0, &old_bflags);
setbflagsval(0, old_bflags|ptr->cflags);
if (ptr->sock)
set_force_socket(_m, ptr->sock);
if(ptr->xavp!=NULL) {
xavp = xavp_clone_level_nodata(ptr->xavp);
if(xavp_add(xavp, NULL)<0) {
ret = -3;
goto done;
}
}
ptr = ptr->next;
}
/* if was gruu, no more branches */
if(inst.len>0) goto done;
/* Append branches if enabled */
if (!cfg_get(registrar, registrar_cfg, append_branches)) goto done;
for( ; ptr ; ptr = ptr->next ) {
if (VALID_CONTACT(ptr, act_time) && allowed_method(_m, ptr)) {
path_dst.len = 0;
if(ptr->path.s && ptr->path.len
&& get_path_dst_uri(&ptr->path, &path_dst) < 0) {
LM_ERR("failed to get dst_uri for Path\n");
continue;
}
/* The same as for the first contact applies for branches
* regarding path vs. received. */
LM_DBG("instance is %.*s\n",
ptr->instance.len, ptr->instance.s);
if (append_branch(_m, &ptr->c,
path_dst.len?&path_dst:&ptr->received,
&ptr->path, ptr->q, ptr->cflags,
ptr->sock,
ptr->instance.len?&(ptr->instance):0,
ptr->instance.len?ptr->reg_id:0,
&ptr->ruid, &ptr->user_agent)
== -1) {
LM_ERR("failed to append a branch\n");
/* Also give a chance to the next branches*/
continue;
}
if(ptr->xavp!=NULL) {
xavp = xavp_clone_level_nodata(ptr->xavp);
if(xavp_insert(xavp, nr_branches, NULL)<0) {
ret = -3;
goto done;
}
}
}
}
done:
ul.release_urecord(r);
ul.unlock_udomain(_d, &aor);
return ret;
}
/*
* Adds to request a new destination set that includes all highest
* priority class contacts in contacts_avp. Request URI is rewritten with
* first contact and the remaining contacts (if any) are added as branches.
* Removes used contacts from contacts_avp. Returns 1, if contacts_avp
* was not empty and a destination set was successfully added. Returns -2,
* if contacts_avp was empty and thus there was nothing to do.
* Returns -1 in case of an error. */
int t_next_contacts(struct sip_msg* msg, char* key, char* value)
{
struct usr_avp *avp, *prev;
int_str val;
str uri, dst, path;
struct socket_info *sock;
unsigned int flags;
struct search_state st;
/* Check if contacts_avp has been defined */
if (contacts_avp.n == 0) {
LM_ERR("feature has been disabled - "
"to enable define contacts_avp module parameter");
return -1;
}
/* Load Request-URI and branches */
/* Find first contacts_avp value */
avp = search_first_avp(contacts_avp_type, contacts_avp, &val, &st);
if (!avp) {
LM_DBG("no AVPs - we are done!\n");
return -2;
}
LM_DBG("next contact is <%.*s>\n", STR_FMT(&val.s));
if (decode_branch_info(val.s.s, &uri, &dst, &path, &sock, &flags)
== 0) {
LM_ERR("decoding of branch info <%.*s> failed\n", STR_FMT(&val.s));
destroy_avp(avp);
return -1;
}
/* Rewrite Request-URI */
rewrite_uri(msg, &uri);
if (dst.s && dst.len) set_dst_uri(msg, &dst);
else reset_dst_uri(msg);
if (path.s && path.len) set_path_vector(msg, &path);
else reset_path_vector(msg);
set_force_socket(msg, sock);
setbflagsval(0, flags);
if (avp->flags & Q_FLAG) {
destroy_avp(avp);
return 1;
}
/* Append branches until out of branches or Q_FLAG is set */
prev = avp;
while ((avp = search_next_avp(&st, &val))) {
destroy_avp(prev);
LM_DBG("next contact is <%.*s>\n", STR_FMT(&val.s));
if (decode_branch_info(val.s.s, &uri, &dst, &path, &sock, &flags)
== 0) {
LM_ERR("decoding of branch info <%.*s> failed\n", STR_FMT(&val.s));
destroy_avp(avp);
return -1;
}
if (append_branch(msg, &uri, &dst, &path, 0, flags, sock) != 1) {
LM_ERR("appending branch failed\n");
destroy_avp(avp);
return -1;
}
if (avp->flags & Q_FLAG) {
destroy_avp(avp);
return 1;
}
prev = avp;
}
destroy_avp(prev);
return 1;
}
/*! \brief
* Lookup contact in the database and rewrite Request-URI
* \return: -1 : not found
* -2 : found but method not allowed
* -3 : error
*/
int lookup(struct sip_msg* _m, char* _t, char* _f, char* _s)
{
unsigned int flags;
urecord_t* r;
str aor, uri;
ucontact_t* ptr,*it;
int res;
int ret;
str path_dst;
str flags_s;
pv_value_t val;
int_str istr;
str sip_instance = {0,0},call_id = {0,0};
flags = 0;
if (_f && _f[0]!=0) {
if (fixup_get_svalue( _m, (gparam_p)_f, &flags_s)!=0) {
LM_ERR("invalid owner uri parameter");
return -1;
}
for( res=0 ; res< flags_s.len ; res++ ) {
switch (flags_s.s[res]) {
case 'm': flags |= REG_LOOKUP_METHODFILTER_FLAG; break;
case 'b': flags |= REG_LOOKUP_NOBRANCH_FLAG; break;
default: LM_WARN("unsuported flag %c \n",flags_s.s[res]);
}
}
}
if (_s) {
if (pv_get_spec_value( _m, (pv_spec_p)_s, &val)!=0) {
LM_ERR("failed to get PV value\n");
return -1;
}
if ( (val.flags&PV_VAL_STR)==0 ) {
LM_ERR("PV vals is not string\n");
return -1;
}
uri = val.rs;
} else {
if (_m->new_uri.s) uri = _m->new_uri;
else uri = _m->first_line.u.request.uri;
}
if (extract_aor(&uri, &aor,&sip_instance,&call_id) < 0) {
LM_ERR("failed to extract address of record\n");
return -3;
}
get_act_time();
ul.lock_udomain((udomain_t*)_t, &aor);
res = ul.get_urecord((udomain_t*)_t, &aor, &r);
if (res > 0) {
LM_DBG("'%.*s' Not found in usrloc\n", aor.len, ZSW(aor.s));
ul.unlock_udomain((udomain_t*)_t, &aor);
return -1;
}
ptr = r->contacts;
ret = -1;
/* look first for an un-expired and suported contact */
search_valid_contact:
while ( (ptr) &&
!(VALID_CONTACT(ptr,act_time) && (ret=-2) && allowed_method(_m,ptr,flags)))
ptr = ptr->next;
if (ptr==0) {
/* nothing found */
LM_DBG("nothing found !\n");
goto done;
}
if (sip_instance.len && sip_instance.s) {
LM_DBG("ruri has gruu in lookup\n");
/* uri has GRUU */
if (ptr->instance.len-2 != sip_instance.len ||
memcmp(ptr->instance.s+1,sip_instance.s,sip_instance.len)) {
LM_DBG("no match to sip instace - [%.*s] - [%.*s]\n",ptr->instance.len-2,ptr->instance.s+1,
sip_instance.len,sip_instance.s);
/* not the targeted instance, search some more */
ptr = ptr->next;
goto search_valid_contact;
}
LM_DBG("matched sip instace\n");
}
if (call_id.len && call_id.s) {
/* decide whether GRUU is expired or not
*
* first - match call-id */
if (ptr->callid.len != call_id.len ||
memcmp(ptr->callid.s,call_id.s,call_id.len)) {
LM_DBG("no match to call id - [%.*s] - [%.*s]\n",ptr->callid.len,ptr->callid.s,
call_id.len,call_id.s);
ptr = ptr->next;
goto search_valid_contact;
}
/* matched call-id, check if there are newer contacts with
* same sip instace bup newer last_modified */
it = ptr->next;
while ( it ) {
if (VALID_CONTACT(it,act_time)) {
if (it->instance.len-2 == sip_instance.len &&
memcmp(it->instance.s+1,sip_instance.s,sip_instance.len) == 0)
if (it->last_modified > ptr->last_modified) {
/* same instance id, but newer modified -> expired GRUU, no match at all */
break;
}
}
it=it->next;
}
if (it != NULL) {
ret = -1;
goto done;
}
}
LM_DBG("found a complete match\n");
ret = 1;
if (ptr) {
LM_DBG("setting as ruri <%.*s>\n",ptr->c.len,ptr->c.s);
if (set_ruri(_m, &ptr->c) < 0) {
LM_ERR("unable to rewrite Request-URI\n");
ret = -3;
goto done;
}
/* If a Path is present, use first path-uri in favour of
* received-uri because in that case the last hop towards the uac
* has to handle NAT. - agranig */
if (ptr->path.s && ptr->path.len) {
if (get_path_dst_uri(&ptr->path, &path_dst) < 0) {
LM_ERR("failed to get dst_uri for Path\n");
ret = -3;
goto done;
}
if (set_path_vector(_m, &ptr->path) < 0) {
LM_ERR("failed to set path vector\n");
ret = -3;
goto done;
}
if (set_dst_uri(_m, &path_dst) < 0) {
LM_ERR("failed to set dst_uri of Path\n");
ret = -3;
goto done;
}
} else if (ptr->received.s && ptr->received.len) {
if (set_dst_uri(_m, &ptr->received) < 0) {
ret = -3;
goto done;
}
}
set_ruri_q(ptr->q);
setbflag( 0, ptr->cflags);
if (ptr->sock)
_m->force_send_socket = ptr->sock;
/* populate the 'attributes' avp */
if (attr_avp_name != -1) {
istr.s = ptr->attr;
if (add_avp_last(AVP_VAL_STR, attr_avp_name, istr) != 0) {
LM_ERR("Failed to populate attr avp!\n");
}
}
ptr = ptr->next;
}
/* Append branches if enabled */
/* If we got to this point and the URI had a ;gr parameter and it was matched
* to a contact. No point in branching */
if ( flags®_LOOKUP_NOBRANCH_FLAG || (sip_instance.len && sip_instance.s) ) goto done;
LM_DBG("looking for branches\n");
for( ; ptr ; ptr = ptr->next ) {
if (VALID_CONTACT(ptr, act_time) && allowed_method(_m,ptr,flags)) {
path_dst.len = 0;
if(ptr->path.s && ptr->path.len
&& get_path_dst_uri(&ptr->path, &path_dst) < 0) {
LM_ERR("failed to get dst_uri for Path\n");
continue;
}
/* The same as for the first contact applies for branches
* regarding path vs. received. */
LM_DBG("setting branch <%.*s>\n",ptr->c.len,ptr->c.s);
if (append_branch(_m,&ptr->c,path_dst.len?&path_dst:&ptr->received,
&ptr->path, ptr->q, ptr->cflags, ptr->sock) == -1) {
LM_ERR("failed to append a branch\n");
/* Also give a chance to the next branches*/
continue;
}
/* populate the 'attributes' avp */
if (attr_avp_name != -1) {
istr.s = ptr->attr;
if (add_avp_last(AVP_VAL_STR, attr_avp_name, istr) != 0) {
LM_ERR("Failed to populate attr avp!\n");
}
}
}
}
done:
ul.release_urecord(r);
ul.unlock_udomain((udomain_t*)_t, &aor);
return ret;
}
int rtjson_init_serial(sip_msg_t *msg, srjson_doc_t *jdoc, sr_xavp_t *iavp)
{
srjson_t *tj = NULL;
srjson_t *nj = NULL;
srjson_t *rj = NULL;
str val;
unsigned int bflags = 0;
unsigned int old_bflags = 0;
struct socket_info* fsocket = NULL;
tj = srjson_GetObjectItem(jdoc, jdoc->root, "routes");
if(tj==NULL || tj->type!=srjson_Array || tj->child==NULL) {
LM_ERR("missing or invalid routes field\n");
goto error;
}
nj = tj->child;
clear_branches();
rj = srjson_GetObjectItem(jdoc, nj, "uri");
if(rj!=NULL && rj->type==srjson_String && rj->valuestring!=NULL) {
val.s = rj->valuestring;
val.len = strlen(val.s);
LM_DBG("rewrite r-uri to: [%.*s]\n", val.len, val.s);
if (rewrite_uri(msg, &val) < 0) {
LM_ERR("unable to rewrite Request-URI\n");
goto error;
}
}
reset_dst_uri(msg);
reset_path_vector(msg);
reset_instance(msg);
reset_ruid(msg);
reset_ua(msg);
reset_force_socket(msg);
msg->reg_id = 0;
set_ruri_q(0);
rj = srjson_GetObjectItem(jdoc, nj, "dst_uri");
if(rj!=NULL && rj->type==srjson_String && rj->valuestring!=NULL) {
val.s = rj->valuestring;
val.len = strlen(val.s);
LM_DBG("rewrite dst-uri to: [%.*s]\n", val.len, val.s);
if (set_dst_uri(msg, &val) < 0) {
LM_ERR("unable to set destination uri\n");
goto error;
}
}
rj = srjson_GetObjectItem(jdoc, nj, "path");
if(rj!=NULL && rj->type==srjson_String && rj->valuestring!=NULL) {
val.s = rj->valuestring;
val.len = strlen(val.s);
LM_DBG("rewrite path to: [%.*s]\n", val.len, val.s);
if (set_path_vector(msg, &val) < 0) {
LM_ERR("unable to set path\n");
goto error;
}
}
rj = srjson_GetObjectItem(jdoc, nj, "socket");
if(rj!=NULL && rj->type==srjson_String && rj->valuestring!=NULL) {
val.s = rj->valuestring;
val.len = strlen(val.s);
LM_DBG("trying to set send socket to: [%.*s]\n", val.len, val.s);
fsocket = lookup_local_socket(&val);
if(fsocket) {
set_force_socket(msg, fsocket);
}
}
rj = srjson_GetObjectItem(jdoc, nj, "branch_flags");
if(rj!=NULL && rj->type==srjson_Number && SRJSON_GET_UINT(rj)!=0) {
bflags = SRJSON_GET_UINT(rj);
old_bflags = 0;
getbflagsval(0, &old_bflags);
setbflagsval(0, old_bflags|bflags);
}
iavp->val.v.i++;
return 0;
error:
return -1;
}
