/**
* Create a new peer.
* - All the memory from parameters is duplicated.
* @param fqdn - FQDN of the peer
* @param realm - Realm of the peer
* @param port - port of the peer to connect to
* @returns the new peer* if ok, NULL on error
*/
peer* new_peer(str fqdn,str realm,int port)
{
peer *x;
x = shm_malloc(sizeof(peer));
if (!x){
LOG_NO_MEM("shm",sizeof(peer));
goto error;
}
memset(x,0,sizeof(peer));
shm_str_dup(x->fqdn,fqdn);
if (!x->fqdn.s) goto error;
shm_str_dup(x->realm,realm);
if (!x->realm.s) goto error;
x->port = port;
x->lock = lock_alloc();
x->lock = lock_init(x->lock);
x->state = Closed;
x->I_sock = -1;
x->R_sock = -1;
x->activity = time(0)-500;
x->next = 0;
x->prev = 0;
return x;
error:
return 0;
}
/**
* Adds a failure route rule to rt. prefix, host, reply_code, and comment
* must not contain NULL pointers.
*
* @param failure_tree the current route tree node
* @param prefix the whole scan prefix
* @param host the hostname last tried
* @param reply_code the reply code
* @param flags user defined flags
* @param mask mask for user defined flags
* @param next_domain continue routing with this domain
* @param comment a comment for the route rule
*
* @return 0 on success, -1 on failure
*
* @see add_failure_route_to_tree()
*/
int add_failure_route_rule(struct failure_route_tree_item * failure_tree, const str * prefix,
const str * host, const str * reply_code, flag_t flags, flag_t mask,
const int next_domain, const str * comment) {
struct failure_route_rule * shm_rr;
struct failure_route_rule * rr;
struct failure_route_rule * prev;
if ((shm_rr = shm_malloc(sizeof(struct failure_route_rule))) == NULL) {
LM_ERR("out of shared memory\n");
return -1;
}
memset(shm_rr, 0, sizeof(struct failure_route_rule));
if (shm_str_dup(&shm_rr->host, host) != 0) {
goto mem_error;
}
if (shm_str_dup(&shm_rr->reply_code, reply_code) != 0) {
goto mem_error;
}
shm_rr->flags = flags;
shm_rr->mask = mask;
shm_rr->next_domain = next_domain;
if (shm_str_dup(&shm_rr->comment, comment) != 0) {
goto mem_error;
}
/* before inserting into list, check priorities! */
rr=failure_tree->rule_list;
prev=NULL;
while ((rr != NULL) && (rule_prio_cmp(shm_rr, rr) > 0)) {
prev=rr;
rr=rr->next;
}
if(prev){
shm_rr->next = prev->next;
prev->next = shm_rr;
} else {
shm_rr->next = failure_tree->rule_list;
failure_tree->rule_list = shm_rr;
}
return 0;
mem_error:
LM_ERR("out of shared memory\n");
destroy_failure_route_rule(shm_rr);
return -1;
}
int dlg_add_extra(dlg_t* _d, str* _ldname, str* _rdname)
{
if(!_d || !_ldname || !_rdname)
{
LM_ERR("Invalid parameters\n");
return -1;
}
/* Make a copy of local Display Name */
if(shm_str_dup(&_d->loc_dname, _ldname) < 0) return -2;
/* Make a copy of remote Display Name */
if(shm_str_dup(&_d->rem_dname, _rdname) < 0) return -3;
return 0;
}
/**
* @brief duplicate dmq node
*/
dmq_node_t *shm_dup_node(dmq_node_t *node)
{
dmq_node_t *newnode;
if(!node) {
LM_ERR("node is null\n");
return NULL;
}
if(!node->orig_uri.s) {
LM_ERR("nod->orig_uri.s is null\n");
return NULL;
}
newnode = shm_malloc(sizeof(dmq_node_t));
if(newnode == NULL) {
LM_ERR("no more shm\n");
return NULL;
}
memcpy(newnode, node, sizeof(dmq_node_t));
newnode->orig_uri.s = NULL;
if(shm_str_dup(&newnode->orig_uri, &node->orig_uri) < 0) {
goto error;
}
if(parse_uri(newnode->orig_uri.s, newnode->orig_uri.len, &newnode->uri)
< 0) {
LM_ERR("error in parsing node uri\n");
goto error;
}
return newnode;
error:
destroy_dmq_node(newnode, 1);
return NULL;
}
/**
* Create a new route tree root in shared memory and set it up.
*
* @param domain the domain name of the route tree
* @param id the domain id of the route tree
*
* @return a pointer to the newly allocated route tree or NULL on
* error, in which case it LOGs an error message.
*/
struct route_tree * create_route_tree(const str * domain, int id) {
struct route_tree * tmp;
if ((tmp = shm_malloc(sizeof(struct route_tree))) == NULL) {
LM_ERR("out of shared memory\n");
return NULL;
}
memset(tmp, 0, sizeof(struct route_tree));
if (shm_str_dup(&tmp->name, domain)!=0) {
LM_ERR("cannot duplicate string\n");
shm_free(tmp);
return NULL;
}
tmp->id = id;
return tmp;
}
/*
* Helper to copy input string parameter into a query parameter
*/
static int set_query_param(str* param, str input)
{
if (param->s) {
shm_free(param->s);
param->s = NULL;
param->len = 0;
}
if (input.s && input.len > 0) {
if (shm_str_dup(param, &input) < 0) {
LM_ERR("Error allocating parameter\n");
return -1;
}
}
return 1;
}
/**
* Tries to add a domain to the domain map. If the given domain doesn't
* exist, it is added. Otherwise, nothing happens.
*
* @param domain the domain to be added
*
* @return values: on succcess the numerical index of the given domain,
* -1 on failure
*/
int add_domain(const str * domain) {
struct route_map * tmp, * prev = NULL;
int id = 0;
if (!script_routes) {
if ((script_routes = shm_malloc(sizeof(struct route_map *))) == NULL) {
LM_ERR("out of shared memory\n");
return -1;
}
memset(script_routes, 0, sizeof(struct route_map *));
}
tmp = *script_routes;
while (tmp) {
if (str_strcmp(&tmp->name, domain) == 0) {
return tmp->no;
}
id = tmp->no + 1;
prev = tmp;
tmp = tmp->next;
}
if ((tmp = shm_malloc(sizeof(struct route_map))) == NULL) {
LM_ERR("out of shared memory\n");
return -1;
}
memset(tmp, 0, sizeof(struct route_map));
if (shm_str_dup(&tmp->name, domain) != 0) {
LM_ERR("cannot duplicate string\n");
shm_free(tmp);
return -1;
}
tmp->no = id;
if (!prev) {
*script_routes = tmp;
} else {
prev->next = tmp;
}
LM_INFO("domain %.*s has id %i\n", domain->len, domain->s, id);
return id;
}
frd_stats_entry_t* get_stats(str user, str prefix, str *shm_user)
{
rw_lock_t *item_lock;
/* First go one level below using the user key */
frd_users_map_item_t **hm =
(frd_users_map_item_t **)get_item(&stats_table, user, &item_lock);
if (*hm == NULL) {
/* First time the user is seen, we must create a hashmap */
*hm = shm_malloc(sizeof(frd_users_map_item_t));
if (*hm == NULL) {
lock_stop_write(item_lock);
LM_ERR("no more shm memory\n");
return NULL;
}
lock_stop_write(item_lock);
(*hm)->numbers_hm.size = FRD_PREFIX_HASH_SIZE;
if (init_hash_map(&(*hm)->numbers_hm) != 0) {
LM_ERR("cannot init hashmap\n");
shm_free(*hm);
return NULL;
}
if (shm_str_dup(&(*hm)->user, &user) != 0) {
free_hash_map(&(*hm)->numbers_hm, destroy_stats_entry);
shm_free(*hm);
return NULL;
}
}
lock_stop_write(item_lock);
if (shm_user)
*shm_user = (*hm)->user;
frd_stats_entry_t **stats_entry =
(frd_stats_entry_t**)get_item(&(*hm)->numbers_hm, prefix, &item_lock);
if (*stats_entry == NULL) {
/* First time the prefix is seen for this user */
*stats_entry = shm_malloc(sizeof(frd_stats_entry_t));
if (*stats_entry == NULL) {
lock_stop_write(item_lock);
LM_ERR("no more shm memory\n");
return NULL;
}
lock_stop_write(item_lock);
/* Now init the auxiliary info for a stats structure */
if (!lock_init(&(*stats_entry)->lock)) {
LM_ERR ("cannot init lock\n");
shm_free(*stats_entry);
return NULL;
}
memset(&((*stats_entry)->stats), 0, sizeof(frd_stats_t));
}
lock_stop_write(item_lock);
return *stats_entry;
}
/**
* Processes an incoming message.
* This actually just puts the message into a message queue. One worker will pick-it-up
* and do the actual processing.
* \note Must be called with a lock on the peer.
* @param p - peer received from
* @param msg - the message received
*/
void Rcv_Process(peer *p, AAAMessage *msg)
{
AAASession *session=0;
unsigned int hash; // we need this here because after the sm_processing , we might end up
// with no session any more
if (msg->sessionId) session = get_session(msg->sessionId->data);
if (session){
hash=session->hash;
switch (session->type){
case AUTH_CLIENT_STATEFULL:
if (is_req(msg)){
if (msg->commandCode==IMS_ASR)
auth_client_statefull_sm_process(session,AUTH_EV_RECV_ASR,msg);
else
auth_client_statefull_sm_process(session,AUTH_EV_RECV_REQ,msg);
}else {
if (msg->commandCode==IMS_STA)
auth_client_statefull_sm_process(session,AUTH_EV_RECV_STA,msg);
else
auth_client_statefull_sm_process(session,AUTH_EV_RECV_ANS,msg);
}
break;
case AUTH_SERVER_STATEFULL:
if (is_req(msg))
{
auth_server_statefull_sm_process(session,AUTH_EV_RECV_REQ,msg);
}else{
if (msg->commandCode==IMS_ASA)
auth_server_statefull_sm_process(session,AUTH_EV_RECV_ASA,msg);
else
auth_server_statefull_sm_process(session,AUTH_EV_RECV_ANS,msg);
}
break;
default:
break;
}
sessions_unlock(hash);
}else{
if (msg->sessionId){
if (msg->commandCode == IMS_ASR)
auth_client_statefull_sm_process(0,AUTH_EV_RECV_ASR,msg);
if (msg->commandCode == IMS_AAR)
{
session=AAACreateAuthSession(0,0,1,0,0);
shm_str_dup(session->id,msg->sessionId->data);
auth_server_statefull_sm_process(0,AUTH_EV_RECV_REQ,msg);
}
// Any other cases to think about?
}
}
if (!put_task(p,msg)){
LOG(L_ERR,"ERROR:Rcv_Process(): Queue refused task\n");
AAAFreeMessage(&msg);
}
LOG(L_DBG,"DBG:Rcv_Process(): task added to queue\n");
// AAAPrintMessage(msg);
}
/**
* @brief build a dmq node
*/
dmq_node_t *build_dmq_node(str *uri, int shm)
{
dmq_node_t *ret = NULL;
param_hooks_t hooks;
param_t *params;
/* For DNS-Lookups */
static char hn[256];
struct hostent *he;
LM_DBG("build_dmq_node %.*s with %s memory\n", STR_FMT(uri),
shm ? "shm" : "private");
if(shm) {
ret = shm_malloc(sizeof(dmq_node_t));
if(ret == NULL) {
LM_ERR("no more shm\n");
goto error;
}
memset(ret, 0, sizeof(dmq_node_t));
if(shm_str_dup(&ret->orig_uri, uri) < 0) {
goto error;
}
} else {
ret = pkg_malloc(sizeof(dmq_node_t));
if(ret == NULL) {
LM_ERR("no more pkg\n");
goto error;
}
memset(ret, 0, sizeof(dmq_node_t));
if(pkg_str_dup(&ret->orig_uri, uri) < 0) {
goto error;
}
}
set_default_dmq_node_params(ret);
if(parse_uri(ret->orig_uri.s, ret->orig_uri.len, &ret->uri) < 0
|| ret->uri.host.len > 254) {
LM_ERR("error parsing uri\n");
goto error;
}
/* if any parameters found, parse them */
if(parse_params(&ret->uri.params, CLASS_ANY, &hooks, ¶ms) < 0) {
LM_ERR("error parsing params\n");
goto error;
}
/* if any params found */
if(params) {
if(set_dmq_node_params(ret, params) < 0) {
free_params(params);
LM_ERR("error setting parameters\n");
goto error;
}
free_params(params);
} else {
LM_DBG("no dmqnode params found\n");
}
/* resolve hostname */
strncpy(hn, ret->uri.host.s, ret->uri.host.len);
hn[ret->uri.host.len] = '\0';
he = resolvehost(hn);
if(he == 0) {
LM_ERR("could not resolve %.*s\n", ret->uri.host.len, ret->uri.host.s);
goto error;
}
hostent2ip_addr(&ret->ip_address, he, 0);
return ret;
error:
if(ret != NULL) {
destroy_dmq_node(ret, shm);
}
return NULL;
}
int async_send_query(sip_msg_t *msg, str *query, cfg_action_t *act)
{
async_query_t *aq;
unsigned int tindex = 0;
unsigned int tlabel = 0;
short suspend = 0;
int dsize;
int len;
tm_cell_t *t = 0;
if(query==0) {
LM_ERR("invalid parameters\n");
return -1;
}
t = tmb.t_gett();
if (t==NULL || t==T_UNDEFINED) {
LM_DBG("no pre-existing transaction, switching to transaction-less behavior\n");
} else if (!ah_params.suspend_transaction) {
LM_DBG("transaction won't be suspended\n");
} else {
if(tmb.t_suspend==NULL) {
LM_ERR("http async query is disabled - tm module not loaded\n");
return -1;
}
if(tmb.t_suspend(msg, &tindex, &tlabel)<0) {
LM_ERR("failed to suspend request processing\n");
return -1;
}
suspend = 1;
LM_DBG("transaction suspended [%u:%u]\n", tindex, tlabel);
}
dsize = sizeof(async_query_t);
aq = (async_query_t*)shm_malloc(dsize);
if(aq==NULL)
{
LM_ERR("no more shm\n");
goto error;
}
memset(aq,0,dsize);
if(shm_str_dup(&aq->query, query)<0) {
goto error;
}
aq->param = act;
aq->tindex = tindex;
aq->tlabel = tlabel;
aq->query_params.tls_verify_peer = ah_params.tls_verify_peer;
aq->query_params.tls_verify_host = ah_params.tls_verify_host;
aq->query_params.suspend_transaction = suspend;
aq->query_params.timeout = ah_params.timeout;
aq->query_params.headers = ah_params.headers;
aq->query_params.method = ah_params.method;
aq->query_params.authmethod = ah_params.authmethod;
q_idx++;
snprintf(q_id, MAX_ID_LEN+1, "%u-%u", (unsigned int)getpid(), q_idx);
strncpy(aq->id, q_id, strlen(q_id));
aq->query_params.tls_client_cert.s = NULL;
aq->query_params.tls_client_cert.len = 0;
if (ah_params.tls_client_cert.s && ah_params.tls_client_cert.len > 0) {
if (shm_str_dup(&aq->query_params.tls_client_cert, &(ah_params.tls_client_cert)) < 0) {
LM_ERR("Error allocating aq->query_params.tls_client_cert\n");
goto error;
}
}
aq->query_params.tls_client_key.s = NULL;
aq->query_params.tls_client_key.len = 0;
if (ah_params.tls_client_key.s && ah_params.tls_client_key.len > 0) {
if (shm_str_dup(&aq->query_params.tls_client_key, &(ah_params.tls_client_key)) < 0) {
LM_ERR("Error allocating aq->query_params.tls_client_key\n");
goto error;
}
}
aq->query_params.tls_ca_path.s = NULL;
aq->query_params.tls_ca_path.len = 0;
if (ah_params.tls_ca_path.s && ah_params.tls_ca_path.len > 0) {
if (shm_str_dup(&aq->query_params.tls_ca_path, &(ah_params.tls_ca_path)) < 0) {
LM_ERR("Error allocating aq->query_params.tls_ca_path\n");
goto error;
}
}
aq->query_params.body.s = NULL;
aq->query_params.body.len = 0;
if (ah_params.body.s && ah_params.body.len > 0) {
if (shm_str_dup(&aq->query_params.body, &(ah_params.body)) < 0) {
LM_ERR("Error allocating aq->query_params.body\n");
goto error;
}
}
aq->query_params.username = NULL;
if (ah_params.username) {
len = strlen(ah_params.username);
aq->query_params.username = shm_malloc(len+1);
if(aq->query_params.username == NULL) {
LM_ERR("error in shm_malloc\n");
goto error;
}
strncpy(aq->query_params.username, ah_params.username, len);
aq->query_params.username[len] = '\0';
}
aq->query_params.password = NULL;
if (ah_params.password) {
len = strlen(ah_params.password);
aq->query_params.password = shm_malloc(len+1);
if(aq->query_params.password == NULL) {
LM_ERR("error in shm_malloc\n");
goto error;
}
strncpy(aq->query_params.password, ah_params.password, len);
aq->query_params.password[len] = '\0';
}
set_query_params(&ah_params);
if(async_push_query(aq)<0) {
LM_ERR("failed to relay query: %.*s\n", query->len, query->s);
goto error;
}
if (suspend) {
/* force exit in config */
return 0;
}
/* continue route processing */
return 1;
error:
if (suspend) {
tmb.t_cancel_suspend(tindex, tlabel);
}
free_async_query(aq);
return -1;
}
void set_query_params(struct query_params *p) {
p->headers.len = 0;
p->headers.t = NULL;
p->tls_verify_host = tls_verify_host;
p->tls_verify_peer = tls_verify_peer;
p->suspend_transaction = 1;
p->timeout = http_timeout;
p->method = AH_METH_DEFAULT;
p->authmethod = default_authmethod;
if (p->tls_client_cert.s && p->tls_client_cert.len > 0) {
shm_free(p->tls_client_cert.s);
p->tls_client_cert.s = NULL;
p->tls_client_cert.len = 0;
}
if (tls_client_cert.s && tls_client_cert.len > 0) {
if (shm_str_dup(&p->tls_client_cert, &tls_client_cert) < 0) {
LM_ERR("Error allocating tls_client_cert\n");
return;
}
}
if (p->tls_client_key.s && p->tls_client_key.len > 0) {
shm_free(p->tls_client_key.s);
p->tls_client_key.s = NULL;
p->tls_client_key.len = 0;
}
if (tls_client_key.s && tls_client_key.len > 0) {
if (shm_str_dup(&p->tls_client_key, &tls_client_key) < 0) {
LM_ERR("Error allocating tls_client_key\n");
return;
}
}
if (p->tls_ca_path.s && p->tls_ca_path.len > 0) {
shm_free(p->tls_ca_path.s);
p->tls_ca_path.s = NULL;
p->tls_ca_path.len = 0;
}
if (tls_ca_path.s && tls_ca_path.len > 0) {
if (shm_str_dup(&p->tls_ca_path, &tls_ca_path) < 0) {
LM_ERR("Error allocating tls_ca_path\n");
return;
}
}
if (p->body.s && p->body.len > 0) {
shm_free(p->body.s);
p->body.s = NULL;
p->body.len = 0;
}
if (p->username) {
shm_free(p->username);
p->username = NULL;
}
if (p->password) {
shm_free(p->password);
p->password = NULL;
}
}
void notification_socket_cb(int fd, short event, void *arg)
{
(void)fd; /* unused */
(void)event; /* unused */
const async_http_worker_t *worker = (async_http_worker_t *) arg;
int received;
int i, len;
async_query_t *aq;
http_m_params_t query_params;
str query;
if ((received = recvfrom(worker->notication_socket[0],
&aq, sizeof(async_query_t*),
0, NULL, 0)) < 0) {
LM_ERR("failed to read from socket (%d: %s)\n", errno, strerror(errno));
return;
}
if(received != sizeof(async_query_t*)) {
LM_ERR("invalid query size %d\n", received);
return;
}
query = ((str)aq->query);
query_params.timeout = aq->query_params.timeout;
query_params.tls_verify_peer = aq->query_params.tls_verify_peer;
query_params.tls_verify_host = aq->query_params.tls_verify_host;
query_params.authmethod = aq->query_params.authmethod;
query_params.headers = NULL;
for (i = 0 ; i < aq->query_params.headers.len ; i++) {
query_params.headers = curl_slist_append(query_params.headers, aq->query_params.headers.t[i]);
}
query_params.method = aq->query_params.method;
query_params.tls_client_cert.s = NULL;
query_params.tls_client_cert.len = 0;
if (aq->query_params.tls_client_cert.s && aq->query_params.tls_client_cert.len > 0) {
if (shm_str_dup(&query_params.tls_client_cert, &(aq->query_params.tls_client_cert)) < 0) {
LM_ERR("Error allocating query_params.tls_client_cert\n");
goto done;
}
}
query_params.tls_client_key.s = NULL;
query_params.tls_client_key.len = 0;
if (aq->query_params.tls_client_key.s && aq->query_params.tls_client_key.len > 0) {
if (shm_str_dup(&query_params.tls_client_key, &(aq->query_params.tls_client_key)) < 0) {
LM_ERR("Error allocating query_params.tls_client_key\n");
goto done;
}
}
query_params.tls_ca_path.s = NULL;
query_params.tls_ca_path.len = 0;
if (aq->query_params.tls_ca_path.s && aq->query_params.tls_ca_path.len > 0) {
if (shm_str_dup(&query_params.tls_ca_path, &(aq->query_params.tls_ca_path)) < 0) {
LM_ERR("Error allocating query_params.tls_ca_path\n");
goto done;
}
}
query_params.body.s = NULL;
query_params.body.len = 0;
if (aq->query_params.body.s && aq->query_params.body.len > 0) {
if (shm_str_dup(&query_params.body, &(aq->query_params.body)) < 0) {
LM_ERR("Error allocating query_params.body\n");
goto done;
}
}
query_params.username = NULL;
if (aq->query_params.username) {
len = strlen(aq->query_params.username);
query_params.username = shm_malloc(len+1);
if(query_params.username == NULL) {
LM_ERR("error in shm_malloc\n");
goto done;
}
strncpy(query_params.username, aq->query_params.username, len);
query_params.username[len] = '\0';
}
query_params.password = NULL;
if (aq->query_params.password) {
len = strlen(aq->query_params.password);
query_params.password = shm_malloc(len+1);
if(query_params.password == NULL) {
LM_ERR("error in shm_malloc\n");
goto done;
}
strncpy(query_params.password, aq->query_params.password, len);
query_params.password[len] = '\0';
}
LM_DBG("query received: [%.*s] (%p)\n", query.len, query.s, aq);
if (new_request(&query, &query_params, async_http_cb, aq) < 0) {
LM_ERR("Cannot create request for %.*s\n", query.len, query.s);
free_async_query(aq);
}
done:
if (query_params.tls_client_cert.s && query_params.tls_client_cert.len > 0) {
shm_free(query_params.tls_client_cert.s);
query_params.tls_client_cert.s = NULL;
query_params.tls_client_cert.len = 0;
}
if (query_params.tls_client_key.s && query_params.tls_client_key.len > 0) {
shm_free(query_params.tls_client_key.s);
query_params.tls_client_key.s = NULL;
query_params.tls_client_key.len = 0;
}
if (query_params.tls_ca_path.s && query_params.tls_ca_path.len > 0) {
shm_free(query_params.tls_ca_path.s);
query_params.tls_ca_path.s = NULL;
query_params.tls_ca_path.len = 0;
}
if (query_params.body.s && query_params.body.len > 0) {
shm_free(query_params.body.s);
query_params.body.s = NULL;
query_params.body.len = 0;
}
if (query_params.username) {
shm_free(query_params.username);
query_params.username = NULL;
}
if (query_params.password) {
shm_free(query_params.password);
query_params.password = NULL;
}
return;
}
/*Actions are composed as follows:
* (the action length and type as always= 5 bytes)
* 4:uac_id
*
* int request(str* method, str* req_uri, str* to, str* from, str* headers, str* body, transaction_cb c, void* cp)
* TODO performance speedup: instead of using
* dynamically allocated memory for headers,body,totag,reason and my_msg
* use static buffers.
*
*/
int ac_uac_req(as_p the_as,unsigned char processor_id,unsigned int flags,char *action,int len)
{
unsigned int cseq;
char err_buf[MAX_REASON_LEN];
struct sip_msg *my_msg;
struct to_body *fb,*tb;
struct cseq_body *cseqb;
struct as_uac_param *the_param;
dlg_t *my_dlg;
int k,retval,uac_id,sip_error,ret,err_ret;
long clen;
str headers,body,fake_uri;
uac_req_t uac_r;
headers.s=body.s=fake_uri.s=NULL;
my_dlg=NULL;
my_msg=NULL;
the_param=NULL;
k=clen=0;
net2hostL(uac_id,action,k);
if(!(headers.s=pkg_malloc(MAX_HEADER))){
LM_ERR("Out of Memory!!");
goto error;
}
headers.len=0;
LM_DBG("Action UAC Message: uac_id:%d processor_id=%d\n",uac_id,processor_id);
if (!(my_msg = parse_ac_msg(HDR_EOH_F,action+k,len-k))) {
LM_ERR("out of memory!\n");
goto error;
}
if(my_msg->first_line.type==SIP_REPLY){
LM_ERR("trying to create a UAC with a SIP response!!\n");
goto error;
}
if(parse_headers(my_msg,HDR_EOH_F,0)==-1){
LM_ERR("ERROR:seas:ac_uac_req:parsing headers\n");
goto error;
}
if(parse_from_header(my_msg)<0){
LM_ERR("parsing from header ! \n");
goto error;
}
if(check_transaction_quadruple(my_msg)==0){
as_action_fail_resp(uac_id,SE_UAC,"Headers missing (to,from,call-id,cseq)?",0);
LM_ERR("Headers missing (to,from,call-id,cseq)?");
goto error;
}
if(!(get_from(my_msg)) || !(get_from(my_msg)->tag_value.s) ||
!(get_from(my_msg)->tag_value.len)){
as_action_fail_resp(uac_id,SE_UAC,"From tag missing",0);
LM_ERR("From tag missing");
goto error;
}
fb=my_msg->from->parsed;
tb=my_msg->to->parsed;
cseqb=my_msg->cseq->parsed;
if(0!=(str2int(&cseqb->number,&cseq))){
LM_DBG("unable to parse CSeq\n");
goto error;
}
if(my_msg->first_line.u.request.method_value != METHOD_ACK &&
my_msg->first_line.u.request.method_value != METHOD_CANCEL) {
/** we trick req_within */
cseq--;
}
if(seas_f.tmb.new_dlg_uac(&(my_msg->callid->body),&(fb->tag_value),cseq,\
&(fb->uri),&(tb->uri),&my_dlg) < 0) {
as_action_fail_resp(uac_id,SE_UAC,"Error creating new dialog",0);
LM_ERR("Error while creating new dialog\n");
goto error;
}
if(seas_f.tmb.dlg_add_extra(my_dlg,&(fb->display),&(tb->display)) < 0 ) {
as_action_fail_resp(uac_id,SE_UAC,
"Error adding the display names to the new dialog",0);
LM_ERR("failed to add display names to the new dialog\n");
goto error;
}
if(tb->tag_value.s && tb->tag_value.len)
shm_str_dup(&my_dlg->id.rem_tag,&tb->tag_value);
/**Awful hack: to be able to set our own CSeq, from_tag and call-ID we have
* to use req_within instead of req_outside (it sets it's own CSeq,Call-ID
* and ftag), so we have to simulate that the dialog is already in completed
* state so...
*/
server_signature=0;
my_dlg->state = DLG_CONFIRMED;
if(0>(headers.len=extract_allowed_headers(my_msg,1,-1,HDR_CONTENTLENGTH_F|HDR_ROUTE_F|HDR_TO_F|HDR_FROM_F|HDR_CALLID_F|HDR_CSEQ_F,headers.s,MAX_HEADER))) {
LM_ERR("Unable to extract allowed headers!!\n");
goto error;
}
headers.s[headers.len]=0;
/*let's get the body*/
if(my_msg->content_length)
clen=(long)get_content_length(my_msg);
if(clen!=0){
if(!(body.s=pkg_malloc(clen))){
LM_ERR("Out of Memory!");
goto error;
}
memcpy(body.s,get_body(my_msg),clen);
body.len=clen;
body.s[clen]=0;
LM_DBG("Trying to construct a Sip Request with: body:%d[%.*s] headers:%d[%.*s]\n",\
body.len,body.len,body.s,headers.len,headers.len,headers.s);
/*t_reply_with_body un-ref-counts the transaction, so dont use it anymore*/
}else{
body.s=NULL;
body.len=0;
}
/*Now... create the UAC !!
* it would be great to know the hash_index and the label that have been assigned
* to our newly created cell, but t_uac does not leave any way for us to know...
* only that when that transaction transitions its state (ie. a response is received,
* a timeout is reached, etc...) the callback will be called with the given parameter.
*
* So the only way we have to know who we are, is passing as a parameter a structure with
* 2 pointers: one to the app_server and the other, the identifier of the UAC (uac_id).
*
*/
if(!(the_param=shm_malloc(sizeof(struct as_uac_param)))){
LM_ERR("out of shared memory\n");
goto error;
}
the_param->who=my_as;
the_param->uac_id=uac_id;
the_param->processor_id=processor_id;
the_param->destroy_cb_set=0;
shm_str_dup(&my_dlg->rem_target,&my_msg->first_line.u.request.uri);
if (my_msg->route) {
if (parse_rr(my_msg->route) < 0) {
LM_ERR( "Error while parsing Route body\n");
goto error;
}
/* TODO route_set should be a shm copy of my_msg->route->parsed */
my_dlg->route_set=(rr_t*)my_msg->route->parsed;
/** this SHOULD be:
shm_duplicate_rr(&my_dlg->route_set,my_msg->route->parsed);
* but it will last more...
*/
}
calculate_hooks(my_dlg);
if(flags & SPIRAL_FLAG){
memcpy(headers.s+headers.len,SPIRAL_HDR CRLF,SPIRAL_HDR_LEN + CRLF_LEN);
headers.len+=SPIRAL_HDR_LEN+CRLF_LEN;
headers.s[headers.len]=0;
fake_uri.s=pkg_malloc(200);
fake_uri.len=print_local_uri(the_as,processor_id,fake_uri.s,200);
if(fake_uri.len<0){
LM_ERR("printing local uri\n");
goto error;
}
my_dlg->hooks.next_hop=&fake_uri;
}
/* Kamailio and OpenSIPs seem to have diverged quite a bit on flags and events
notified to UACs. Let's see if kamailio gets it right by now, if not
this is a TODO: check PASS_PROVISIONAL
my_dlg->T_flags=T_NO_AUTO_ACK|T_PASS_PROVISIONAL_FLAG ;
this is the same as (TMCB_DONT_ACK|TMCB_LOCAL_RESPONSE_OUT) in Kamailio
*/
set_uac_req(&uac_r, &(my_msg->first_line.u.request.method), &headers,
&body, my_dlg,TMCB_DONT_ACK|TMCB_LOCAL_RESPONSE_OUT, uac_cb,
(void*)the_param);
ret=seas_f.tmb.t_request_within(&uac_r);
/** now undo all the fakes we have put in my_dlg*/
/*because my_dlg->route_set should be shm but we fake it (its pkg_mem)*/
my_dlg->route_set=(rr_t *)0;
if (ret < 0) {
err_ret = err2reason_phrase(ret,&sip_error,err_buf, sizeof(err_buf), "SEAS/UAC");
LM_ERR("failed to send the [%.*s] request\n",uac_r.method->len,uac_r.method->s);
LM_ERR("Error on request_within %s\n",err_buf );
if(err_ret > 0) {
as_action_fail_resp(uac_id,ret,err_buf,0);
}else{
as_action_fail_resp(uac_id,E_UNSPEC,"500 SEAS/UAC error",0);
}
goto error;
}
retval=0;
goto exit;
error:
retval = -1;
if(the_param)
shm_free(the_param);
exit:
seas_f.tmb.free_dlg(my_dlg);
if(headers.s)
pkg_free(headers.s);
if(body.s)
pkg_free(body.s);
if(fake_uri.s)
pkg_free(fake_uri.s);
if(my_msg){
if(my_msg->headers)
free_hdr_field_lst(my_msg->headers);
pkg_free(my_msg);
}
return retval;
}
/**
* Adds a route rule to rf. prefix, rewrite_hostpart, rewrite_local_prefix,
* rewrite_local_suffix, and comment must not contain NULL pointers.
*
* @param rf the current route_flags struct
* @param prefix the whole scan prefix
* @param max_targets the number of targets
* @param prob the weight of the rule
* @param rewrite_hostpart the rewrite_host of the rule
* @param strip the strip value of the rule
* @param rewrite_local_prefix the rewrite prefix
* @param rewrite_local_suffix the rewrite suffix
* @param status the status of the rule
* @param hash_index the hash index of the rule
* @param backup indicates if the route is backed up by another. only
useful if status==0, if set, it is the hash value
of another rule
* @param backed_up an NULL-termintated array of hash indices of the route
for which this route is backup
* @param comment a comment for the route rule
*
* @return 0 on success, -1 on failure
*
* @see add_route_to_tree()
*/
int add_route_rule(struct route_flags *rf, const str * prefix,
int max_targets, double prob, const str * rewrite_hostpart, int strip,
const str * rewrite_local_prefix, const str * rewrite_local_suffix,
int status, int hash_index, int backup, int * backed_up,
const str * comment) {
struct route_rule * shm_rr, * prev = NULL, * tmp = NULL;
struct route_rule_p_list * t_rl;
int * t_bu;
if (max_targets) {
rf->max_targets = max_targets;
} else {
rf->max_targets++;
}
if ((shm_rr = shm_malloc(sizeof(struct route_rule))) == NULL) {
LM_ERR("out of shared memory\n");
return -1;
}
memset(shm_rr, 0, sizeof(struct route_rule));
if (shm_str_dup(&shm_rr->host, rewrite_hostpart) != 0) {
goto mem_error;
}
if (shm_str_dup(&shm_rr->prefix, prefix) != 0) {
goto mem_error;
}
shm_rr->strip = strip;
if (shm_str_dup(&shm_rr->local_prefix, rewrite_local_prefix) != 0) {
goto mem_error;
}
if (shm_str_dup(&shm_rr->local_suffix, rewrite_local_suffix) != 0) {
goto mem_error;
}
if (shm_str_dup(&shm_rr->comment, comment) != 0) {
goto mem_error;
}
shm_rr->status = status;
shm_rr->hash_index = hash_index;
shm_rr->orig_prob = prob;
if (shm_rr->status || backup != -1) {
shm_rr->prob = prob;
} else {
shm_rr->prob = 0;
}
if (backup >= 0) {
if ((shm_rr->backup = shm_malloc(sizeof(struct route_rule_p_list))) == NULL) {
goto mem_error;
}
memset(shm_rr->backup, 0, sizeof(struct route_rule_p_list));
shm_rr->backup->hash_index = backup;
}
shm_rr->backed_up = NULL;
t_bu = backed_up;
if(!backed_up){
LM_INFO("no backed up rules\n");
}
while (t_bu && *t_bu != -1) {
if ((t_rl = shm_malloc(sizeof(struct route_rule_p_list))) == NULL) {
goto mem_error;
}
memset(t_rl, 0, sizeof(struct route_rule_p_list));
t_rl->hash_index = *t_bu;
t_rl->next = shm_rr->backed_up;
shm_rr->backed_up = t_rl;
t_bu++;
}
/* rules with a probability of zero are always at the beginning of the list */
tmp = rf->rule_list;
while(tmp && tmp->prob == 0){
prev = tmp;
tmp = tmp->next;
}
/* rules with prob > 0 are sorted by hash_index */
while(tmp && (tmp->hash_index < shm_rr->hash_index)){
prev = tmp;
tmp = tmp->next;
}
if(prev){
shm_rr->next = prev->next;
prev->next = shm_rr;
} else {
shm_rr->next = rf->rule_list;
rf->rule_list = shm_rr;
}
return 0;
mem_error:
LM_ERR("out of shared memory\n");
destroy_route_rule(shm_rr);
return -1;
}
/*!
* \brief Create a new contact structure
* \param _dom domain
* \param _aor address of record
* \param _contact contact string
* \param _ci contact informations
* \return new created contact on success, 0 on failure
*/
ucontact_t* new_ucontact(str* _dom, str* _aor, str* _contact, ucontact_info_t* _ci)
{
ucontact_t *c;
c = (ucontact_t*)shm_malloc(sizeof(ucontact_t));
if (!c) {
LM_ERR("no more shm memory\n");
return 0;
}
memset(c, 0, sizeof(ucontact_t));
if (_contact->s && _contact->len > 0) {
if (shm_str_dup( &c->c, _contact) < 0) goto error;
}
if (_ci->callid->s && _ci->callid->len > 0) {
if (shm_str_dup( &c->callid, _ci->callid) < 0) goto error;
}
if (_ci->user_agent->s && _ci->user_agent->len > 0) {
if (shm_str_dup( &c->user_agent, _ci->user_agent) < 0) goto error;
}
if (_ci->received.s && _ci->received.len > 0) {
if (shm_str_dup( &c->received, &_ci->received) < 0) goto error;
}
if (_ci->path && _ci->path->len > 0) {
if (shm_str_dup( &c->path, _ci->path) < 0) goto error;
}
if (_ci->ruid.s && _ci->ruid.len > 0) {
if (shm_str_dup( &c->ruid, &_ci->ruid) < 0) goto error;
}
if (_ci->instance.s && _ci->instance.len > 0) {
if (shm_str_dup( &c->instance, &_ci->instance) < 0) goto error;
}
c->domain = _dom;
c->aor = _aor;
c->expires = _ci->expires;
c->q = _ci->q;
c->sock = _ci->sock;
c->cseq = _ci->cseq;
c->state = CS_NEW;
c->flags = _ci->flags;
c->cflags = _ci->cflags;
c->methods = _ci->methods;
c->reg_id = _ci->reg_id;
c->last_modified = _ci->last_modified;
return c;
error:
LM_ERR("no more shm memory\n");
if (c->path.s) shm_free(c->path.s);
if (c->received.s) shm_free(c->received.s);
if (c->user_agent.s) shm_free(c->user_agent.s);
if (c->callid.s) shm_free(c->callid.s);
if (c->c.s) shm_free(c->c.s);
if (c->ruid.s) shm_free(c->ruid.s);
if (c->instance.s) shm_free(c->instance.s);
shm_free(c);
return 0;
}
/*!
* \brief Create a new contact structure
* \param _dom domain
* \param _aor address of record
* \param _contact contact string
* \param _ci contact informations
* \return new created contact on success, 0 on failure
*/
ucontact_t* new_ucontact(str* _dom, str* _aor, str* _contact, ucontact_info_t* _ci) {
ucontact_t *c;
param_t *prev, *curr, *param;
int first = 1;
c = (ucontact_t*) shm_malloc(sizeof (ucontact_t));
if (!c) {
LM_ERR("no more shm memory\n");
return 0;
}
memset(c, 0, sizeof (ucontact_t));
c->lock = lock_alloc();
c->lock = lock_init(c->lock);
//setup callback list
c->cbs = (struct ulcb_head_list*) shm_malloc(sizeof (struct ulcb_head_list));
if (c->cbs == 0) {
LM_CRIT("no more shared mem\n");
goto error;
}
c->cbs->first = 0;
c->cbs->reg_types = 0;
/*Copy parameter list into shm**/
param = _ci->params;
while(param) {
/*Copy first param in curr*/
curr = shm_malloc(sizeof (param_t));
curr->len = param->len;
curr->type = param->type;
curr->next = 0;
if (shm_str_dup(&curr->body, ¶m->body) < 0) goto error;
if (shm_str_dup(&curr->name, ¶m->name) < 0) goto error;
if(first) {
c->params = curr;
first = 0;
} else {
prev->next = curr;
}
prev = curr;
param = param->next;
}
if (shm_str_dup(&c->c, _contact) < 0) goto error;
if (shm_str_dup(&c->callid, _ci->callid) < 0) goto error;
if (shm_str_dup(&c->user_agent, _ci->user_agent) < 0) goto error;
if (shm_str_dup(&c->aor, _aor) < 0) goto error;
if (shm_str_dup(&c->domain, _dom) < 0) goto error;
if (_ci->received.s && _ci->received.len) {
if (shm_str_dup(&c->received, &_ci->received) < 0) goto error;
}
if (_ci->path && _ci->path->len) {
if (shm_str_dup(&c->path, _ci->path) < 0) goto error;
}
LM_DBG("generating hash based on [%.*s]\n", _contact->len, _contact->s);
c->contact_hash = core_hash(_contact, 0, contact_list->size);
c->ref_count = 1;
c->expires = _ci->expires;
c->q = _ci->q;
c->sock = _ci->sock;
c->cseq = _ci->cseq;
c->flags = _ci->flags;
c->cflags = _ci->cflags;
c->methods = _ci->methods;
c->last_modified = _ci->last_modified;
return c;
error:
LM_ERR("no more shm memory\n");
if (c->path.s) shm_free(c->path.s);
if (c->received.s) shm_free(c->received.s);
if (c->user_agent.s) shm_free(c->user_agent.s);
if (c->callid.s) shm_free(c->callid.s);
if (c->c.s) shm_free(c->c.s);
if (c->domain.s) shm_free(c->domain.s);
if (c->aor.s) shm_free(c->aor.s);
shm_free(c);
return 0;
}
