/**
* destroy function
*/
static void destroy(void)
{
LM_DBG("destroying module ...\n");
/* flush the state of the destinations */
if (ds_persistent_state)
ds_flusher_routine(0, NULL);
ds_partition_t *part_it = partitions, *aux;
while (part_it) {
ds_destroy_data(part_it);
aux = part_it;
part_it = part_it->next;
ds_disconnect_db(aux);
pkg_free(aux->db_handle);
shm_free(aux);
}
/* destroy blacklists */
destroy_ds_bls();
/* destroy probing list */
if (ds_probing_list)
free_int_list(ds_probing_list, NULL);
}
/**
* destroy function
*/
static void destroy(void)
{
LM_DBG("destroying module ...\n");
ds_destroy_list();
if(ds_db_url.s)
ds_disconnect_db();
}
/*! \brief
* destroy function
*/
static void destroy(void)
{
ds_destroy_list();
if(ds_db_url.s)
ds_disconnect_db();
ds_hash_load_destroy();
if(ds_ping_reply_codes)
shm_free(ds_ping_reply_codes);
}
/*initialize and verify DB stuff*/
int init_ds_db(void)
{
int _ds_table_version;
int ret;
if(ds_table_name.s == 0)
{
LM_ERR("invalid database name\n");
return -1;
}
/* Find a database module */
if (db_bind_mod(&ds_db_url, &ds_dbf) < 0)
{
LM_ERR("Unable to bind to a database driver\n");
return -1;
}
if(ds_connect_db()!=0){
LM_ERR("unable to connect to the database\n");
return -1;
}
_ds_table_version = db_table_version(&ds_dbf, ds_db_handle, &ds_table_name);
if (_ds_table_version < 0)
{
LM_ERR("failed to query table version\n");
return -1;
} else if (_ds_table_version != DS_TABLE_VERSION) {
LM_ERR("invalid table version (found %d , required %d)\n"
"(use opensipsdbctl reinit)\n",
_ds_table_version, DS_TABLE_VERSION );
return -1;
}
ret = ds_load_db();
ds_disconnect_db();
return ret;
}
/**
* init module function
*/
static int mod_init(void)
{
LM_DBG("initializing ...\n");
if (check_if_default_head_is_ok()) {
default_db_head.next = ds_db_heads;
ds_db_heads = &default_db_head;
}
set_default_head_values(&default_db_head);
ds_set_id_col.len = strlen(ds_set_id_col.s);
ds_dest_uri_col.len = strlen(ds_dest_uri_col.s);
ds_dest_sock_col.len = strlen(ds_dest_sock_col.s);
ds_dest_state_col.len = strlen(ds_dest_state_col.s);
ds_dest_weight_col.len = strlen(ds_dest_weight_col.s);
ds_dest_attrs_col.len = strlen(ds_dest_attrs_col.s);
if(hash_pvar_param.s && (hash_pvar_param.len=strlen(hash_pvar_param.s))>0){
if(pv_parse_format(&hash_pvar_param, &hash_param_model) < 0
|| hash_param_model==NULL) {
LM_ERR("malformed PV string: %s\n", hash_pvar_param.s);
return -1;
}
} else {
hash_param_model = NULL;
}
if(ds_setid_pvname.s && (ds_setid_pvname.len=strlen(ds_setid_pvname.s))>0){
if(pv_parse_spec(&ds_setid_pvname, &ds_setid_pv)==NULL
|| !pv_is_w(&ds_setid_pv))
{
LM_ERR("[%s]- invalid setid_pvname\n", ds_setid_pvname.s);
return -1;
}
}
pvar_algo_param.len = strlen(pvar_algo_param.s);
if (pvar_algo_param.len)
ds_pvar_parse_pattern(pvar_algo_param);
if (init_ds_bls()!=0) {
LM_ERR("failed to init DS blacklists\n");
return E_CFG;
}
/* Creating partitions from head */
ds_db_head_t *head_it = ds_db_heads;
while (head_it){
if (inherit_from_default_head(head_it) != 0)
return -1;
ds_partition_t *partition = shm_malloc (sizeof(ds_partition_t));
if (partition_init(head_it, partition) != 0)
return -1;
partition->next = partitions;
partitions = partition;
if (init_ds_data(partition)!=0) {
LM_ERR("failed to init DS data holder\n");
return -1;
}
/* open DB connection to load provisioning data */
if (init_ds_db(partition)!= 0) {
LM_ERR("failed to init database support\n");
return -1;
}
/* do the actual data load */
if (ds_reload_db(partition)!=0) {
LM_ERR("failed to load data from DB\n");
return -1;
}
/* close DB connection */
ds_disconnect_db(partition);
ds_db_head_t *aux = head_it;
/* We keep track of corespondig default parition */
if (head_it == &default_db_head)
default_partition = partition;
head_it = head_it->next;
if (aux != &default_db_head)
pkg_free(aux);
}
/* Only, if the Probing-Timer is enabled the TM-API needs to be loaded: */
if (ds_ping_interval > 0)
{
load_tm_f load_tm;
str host;
int port,proto;
if (ds_ping_from.s)
ds_ping_from.len = strlen(ds_ping_from.s);
if (ds_ping_method.s)
ds_ping_method.len = strlen(ds_ping_method.s);
/* parse the list of reply codes to be counted as success */
if(options_reply_codes_str.s) {
options_reply_codes_str.len = strlen(options_reply_codes_str.s);
if(parse_reply_codes(&options_reply_codes_str,&options_reply_codes,
&options_codes_no )< 0) {
LM_ERR("Bad format for options_reply_code parameter"
" - Need a code list separated by commas\n");
return -1;
}
}
/* parse and look for the socket to ping from */
if (probing_sock_s && probing_sock_s[0]!=0 ) {
if (parse_phostport( probing_sock_s, strlen(probing_sock_s),
&host.s, &host.len, &port, &proto)!=0 ) {
LM_ERR("socket description <%s> is not valid\n",
probing_sock_s);
return -1;
}
probing_sock = grep_sock_info( &host, port, proto);
if (probing_sock==NULL) {
LM_ERR("socket <%s> is not local to opensips (we must listen "
"on it\n", probing_sock_s);
return -1;
}
}
/* TM-Bindings */
load_tm=(load_tm_f)find_export("load_tm", 0, 0);
if (load_tm==NULL) {
LM_ERR("failed to bind to the TM-Module - required for probing\n");
return -1;
}
/* let the auto-loading function load all TM stuff */
if (load_tm( &tmb ) == -1) {
LM_ERR("could not load the TM-functions - disable DS ping\n");
return -1;
}
/* Register the PING-Timer */
if (register_timer("ds-pinger", ds_check_timer, NULL,
ds_ping_interval, TIMER_FLAG_DELAY_ON_DELAY)<0) {
LM_ERR("failed to register timer for probing!\n");
return -1;
}
}
/* register timer to flush the state of destination back to DB */
if (ds_persistent_state && register_timer("ds-flusher", ds_flusher_routine,
NULL, 30 , TIMER_FLAG_SKIP_ON_DELAY)<0) {
LM_ERR("failed to register timer for DB flushing!\n");
return -1;
}
dispatch_evi_id = evi_publish_event(dispatcher_event);
if (dispatch_evi_id == EVI_ERROR)
LM_ERR("cannot register dispatcher event\n");
return 0;
}
/**
* init module function
*/
static int mod_init(void)
{
pv_spec_t avp_spec;
LM_DBG("initializing ...\n");
/* Load stuff from DB */
init_db_url( ds_db_url , 0 /*cannot be null*/);
ds_table_name.len = strlen(ds_table_name.s);
ds_set_id_col.len = strlen(ds_set_id_col.s);
ds_dest_uri_col.len = strlen(ds_dest_uri_col.s);
ds_dest_sock_col.len = strlen(ds_dest_sock_col.s);
ds_dest_state_col.len = strlen(ds_dest_state_col.s);
ds_dest_weight_col.len = strlen(ds_dest_weight_col.s);
ds_dest_attrs_col.len = strlen(ds_dest_attrs_col.s);
/* handle AVPs spec */
dst_avp_param.len = strlen(dst_avp_param.s);
if (pv_parse_spec(&dst_avp_param, &avp_spec)==0
|| avp_spec.type!=PVT_AVP) {
LM_ERR("malformed or non AVP %.*s AVP definition\n",
dst_avp_param.len, dst_avp_param.s);
return -1;
}
if(pv_get_avp_name(0, &(avp_spec.pvp), &dst_avp_name,&dst_avp_type)!=0) {
LM_ERR("[%.*s]- invalid AVP definition\n", dst_avp_param.len,
dst_avp_param.s);
return -1;
}
grp_avp_param.len=strlen(grp_avp_param.s);
if (pv_parse_spec(&grp_avp_param, &avp_spec)==0
|| avp_spec.type!=PVT_AVP) {
LM_ERR("malformed or non AVP %.*s AVP definition\n",
grp_avp_param.len, grp_avp_param.s);
return -1;
}
if(pv_get_avp_name(0, &(avp_spec.pvp), &grp_avp_name,&grp_avp_type)!=0) {
LM_ERR("[%.*s]- invalid AVP definition\n", grp_avp_param.len,
grp_avp_param.s);
return -1;
}
cnt_avp_param.len=strlen(cnt_avp_param.s);
if (pv_parse_spec(&cnt_avp_param, &avp_spec)==0
|| avp_spec.type!=PVT_AVP) {
LM_ERR("malformed or non AVP %.*s AVP definition\n",
cnt_avp_param.len, cnt_avp_param.s);
return -1;
}
if(pv_get_avp_name(0, &(avp_spec.pvp), &cnt_avp_name,&cnt_avp_type)!=0) {
LM_ERR("[%.*s]- invalid AVP definition\n", cnt_avp_param.len,
cnt_avp_param.s);
return -1;
}
sock_avp_param.len=strlen(sock_avp_param.s);
if (pv_parse_spec(&sock_avp_param, &avp_spec)==0
|| avp_spec.type!=PVT_AVP) {
LM_ERR("malformed or non AVP %.*s AVP definition\n",
sock_avp_param.len, sock_avp_param.s);
return -1;
}
if(pv_get_avp_name(0, &(avp_spec.pvp), &sock_avp_name,&sock_avp_type)!=0){
LM_ERR("[%.*s]- invalid AVP definition\n", sock_avp_param.len,
sock_avp_param.s);
return -1;
}
if (attrs_avp_param.s && (attrs_avp_param.len=strlen(attrs_avp_param.s)) > 0) {
if (pv_parse_spec(&attrs_avp_param, &avp_spec)==0
|| avp_spec.type!=PVT_AVP) {
LM_ERR("malformed or non AVP %.*s AVP definition\n",
attrs_avp_param.len, attrs_avp_param.s);
return -1;
}
if (pv_get_avp_name(0, &(avp_spec.pvp), &attrs_avp_name,
&attrs_avp_type)!=0){
LM_ERR("[%.*s]- invalid AVP definition\n", attrs_avp_param.len,
attrs_avp_param.s);
return -1;
}
} else {
attrs_avp_name = -1;
attrs_avp_type = 0;
}
if (hash_pvar_param.s && (hash_pvar_param.len=strlen(hash_pvar_param.s))>0 ) {
if(pv_parse_format(&hash_pvar_param, &hash_param_model) < 0
|| hash_param_model==NULL) {
LM_ERR("malformed PV string: %s\n", hash_pvar_param.s);
return -1;
}
} else {
hash_param_model = NULL;
}
if (ds_setid_pvname.s && (ds_setid_pvname.len=strlen(ds_setid_pvname.s))>0 ) {
if(pv_parse_spec(&ds_setid_pvname, &ds_setid_pv)==NULL
|| !pv_is_w(&ds_setid_pv))
{
LM_ERR("[%s]- invalid setid_pvname\n", ds_setid_pvname.s);
return -1;
}
}
pvar_algo_param.len = strlen(pvar_algo_param.s);
if (pvar_algo_param.len)
ds_pvar_parse_pattern(pvar_algo_param);
if (init_ds_bls()!=0) {
LM_ERR("failed to init DS blacklists\n");
return E_CFG;
}
if (init_ds_data()!=0) {
LM_ERR("failed to init DS data holder\n");
return -1;
}
/* open DB connection to load provisioning data */
if (init_ds_db()!= 0) {
LM_ERR("failed to init database support\n");
return -1;
}
/* do the actula data load */
if (ds_reload_db()!=0) {
LM_ERR("failed to load data from DB\n");
return -1;
}
/* close DB connection */
ds_disconnect_db();
/* Only, if the Probing-Timer is enabled the TM-API needs to be loaded: */
if (ds_ping_interval > 0)
{
load_tm_f load_tm;
str host;
int port,proto;
if (ds_ping_from.s)
ds_ping_from.len = strlen(ds_ping_from.s);
if (ds_ping_method.s)
ds_ping_method.len = strlen(ds_ping_method.s);
/* parse the list of reply codes to be counted as success */
if(options_reply_codes_str.s) {
options_reply_codes_str.len = strlen(options_reply_codes_str.s);
if(parse_reply_codes( &options_reply_codes_str, &options_reply_codes,
&options_codes_no )< 0) {
LM_ERR("Bad format for options_reply_code parameter"
" - Need a code list separated by commas\n");
return -1;
}
}
/* parse and look for the socket to ping from */
if (probing_sock_s && probing_sock_s[0]!=0 ) {
if (parse_phostport( probing_sock_s, strlen(probing_sock_s),
&host.s, &host.len, &port, &proto)!=0 ) {
LM_ERR("socket description <%s> is not valid\n",
probing_sock_s);
return -1;
}
probing_sock = grep_sock_info( &host, port, proto);
if (probing_sock==NULL) {
LM_ERR("socket <%s> is not local to opensips (we must listen "
"on it\n", probing_sock_s);
return -1;
}
}
/* TM-Bindings */
load_tm=(load_tm_f)find_export("load_tm", 0, 0);
if (load_tm==NULL) {
LM_ERR("failed to bind to the TM-Module - required for probing\n");
return -1;
}
/* let the auto-loading function load all TM stuff */
if (load_tm( &tmb ) == -1) {
LM_ERR("could not load the TM-functions - disable DS ping\n");
return -1;
}
/* Register the PING-Timer */
if (register_timer("ds-pinger",ds_check_timer,NULL,ds_ping_interval)<0){
LM_ERR("failed to register timer for probing!\n");
return -1;
}
}
/* register timer to flush the state of destination back to DB */
if (register_timer("ds-flusher",ds_flusher_routine,NULL, 30)<0){
LM_ERR("failed to register timer for DB flushing!\n");
return -1;
}
dispatch_evi_id = evi_publish_event(dispatcher_event);
if (dispatch_evi_id == EVI_ERROR)
LM_ERR("cannot register dispatcher event\n");
return 0;
}
