/
dialog.c
1819 lines (1592 loc) · 47.3 KB
/
dialog.c
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/*
* dialog module - basic support for dialog tracking
*
* Copyright (C) 2006 Voice Sistem SRL
* Copyright (C) 2011 Carsten Bock, carsten@ng-voice.com
*
* This file is part of Kamailio, a free SIP server.
*
* Kamailio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* Kamailio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
/*!
* \file
* \brief Module interface
* \ingroup dialog
* Module: \ref dialog
*/
/**
* @defgroup dialog dialog :: Kamailio dialog module
* @brief Kamailio dialog module
*
* The dialog module provides dialog awareness to the Kamailio proxy. Its
* functionality is to keep track of the current dialogs, to offer
* information about them (like how many dialogs are active) or to manage
* them. The module exports several functions that could be used directly
* from scripts.
* The module, via an internal API, also provide the foundation to build
* on top of it more complex dialog-based functionalities via other
* Kamailio modules.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/time.h>
#include "../../sr_module.h"
#include "../../lib/srdb1/db.h"
#include "../../dprint.h"
#include "../../error.h"
#include "../../ut.h"
#include "../../pvar.h"
#include "../../mod_fix.h"
#include "../../script_cb.h"
#include "../../lib/kcore/faked_msg.h"
#include "../../hashes.h"
#include "../../lib/kcore/kstats_wrapper.h"
#include "../../mem/mem.h"
#include "../../lib/kmi/mi.h"
#include "../../timer_proc.h"
#include "../../lvalue.h"
#include "../../parser/parse_to.h"
#include "../../modules/tm/tm_load.h"
#include "../../rpc_lookup.h"
#include "../rr/api.h"
#include "dlg_hash.h"
#include "dlg_timer.h"
#include "dlg_handlers.h"
#include "dlg_load.h"
#include "dlg_cb.h"
#include "dlg_db_handler.h"
#include "dlg_req_within.h"
#include "dlg_profile.h"
#include "dlg_var.h"
#include "dlg_transfer.h"
#include "dlg_cseq.h"
MODULE_VERSION
#define RPC_DATE_BUF_LEN 21
static int mod_init(void);
static int child_init(int rank);
static void mod_destroy(void);
/* module parameter */
static int dlg_hash_size = 4096;
static char* rr_param = "did";
static int dlg_flag = -1;
static str timeout_spec = {NULL, 0};
static int default_timeout = 60 * 60 * 12; /* 12 hours */
static int seq_match_mode = SEQ_MATCH_STRICT_ID;
static char* profiles_wv_s = NULL;
static char* profiles_nv_s = NULL;
str dlg_extra_hdrs = {NULL,0};
static int db_fetch_rows = 200;
static int db_skip_load = 0;
int initial_cbs_inscript = 1;
int dlg_wait_ack = 1;
static int dlg_timer_procs = 0;
static int _dlg_track_cseq_updates = 0;
int dlg_event_rt[DLG_EVENTRT_MAX];
str dlg_bridge_controller = str_init("sip:controller@kamailio.org");
str dlg_bridge_contact = str_init("sip:controller@kamailio.org:5060");
str ruri_pvar_param = str_init("$ru");
pv_elem_t * ruri_param_model = NULL;
str empty_str = STR_NULL;
/* statistic variables */
int dlg_enable_stats = 1;
int active_dlgs_cnt = 0;
int early_dlgs_cnt = 0;
int detect_spirals = 1;
int dlg_send_bye = 0;
int dlg_timeout_noreset = 0;
stat_var *active_dlgs = 0;
stat_var *processed_dlgs = 0;
stat_var *expired_dlgs = 0;
stat_var *failed_dlgs = 0;
stat_var *early_dlgs = 0;
struct tm_binds d_tmb;
struct rr_binds d_rrb;
pv_spec_t timeout_avp;
int dlg_db_mode_param = DB_MODE_NONE;
str dlg_xavp_cfg = {0};
int dlg_ka_timer = 0;
int dlg_ka_interval = 0;
int dlg_clean_timer = 90;
str dlg_lreq_callee_headers = {0};
/* db stuff */
static str db_url = str_init(DEFAULT_DB_URL);
static unsigned int db_update_period = DB_DEFAULT_UPDATE_PERIOD;
static int pv_get_dlg_count( struct sip_msg *msg, pv_param_t *param,
pv_value_t *res);
void dlg_ka_timer_exec(unsigned int ticks, void* param);
void dlg_clean_timer_exec(unsigned int ticks, void* param);
/* commands wrappers and fixups */
static int fixup_profile(void** param, int param_no);
static int fixup_get_profile2(void** param, int param_no);
static int fixup_get_profile3(void** param, int param_no);
static int w_set_dlg_profile(struct sip_msg*, char*, char*);
static int w_unset_dlg_profile(struct sip_msg*, char*, char*);
static int w_is_in_profile(struct sip_msg*, char*, char*);
static int w_get_profile_size2(struct sip_msg*, char*, char*);
static int w_get_profile_size3(struct sip_msg*, char*, char*, char*);
static int w_dlg_isflagset(struct sip_msg *msg, char *flag, str *s2);
static int w_dlg_resetflag(struct sip_msg *msg, char *flag, str *s2);
static int w_dlg_setflag(struct sip_msg *msg, char *flag, char *s2);
static int w_dlg_set_property(struct sip_msg *msg, char *prop, char *s2);
static int w_dlg_manage(struct sip_msg*, char*, char*);
static int w_dlg_bye(struct sip_msg*, char*, char*);
static int w_dlg_refer(struct sip_msg*, char*, char*);
static int w_dlg_bridge(struct sip_msg*, char*, char*, char*);
static int w_dlg_set_timeout(struct sip_msg*, char*, char*, char*);
static int w_dlg_set_timeout_by_profile2(struct sip_msg *, char *, char *);
static int w_dlg_set_timeout_by_profile3(struct sip_msg *, char *, char *,
char *);
static int fixup_dlg_bye(void** param, int param_no);
static int fixup_dlg_refer(void** param, int param_no);
static int fixup_dlg_bridge(void** param, int param_no);
static int w_dlg_get(struct sip_msg*, char*, char*, char*);
static int w_is_known_dlg(struct sip_msg *);
static int w_dlg_remote_profile(sip_msg_t *msg, char *cmd, char *pname,
char *pval, char *puid, char *expires);
static int fixup_dlg_remote_profile(void** param, int param_no);
static cmd_export_t cmds[]={
{"dlg_manage", (cmd_function)w_dlg_manage, 0,0,
0, REQUEST_ROUTE },
{"set_dlg_profile", (cmd_function)w_set_dlg_profile, 1,fixup_profile,
0, ANY_ROUTE },
{"set_dlg_profile", (cmd_function)w_set_dlg_profile, 2,fixup_profile,
0, ANY_ROUTE },
{"unset_dlg_profile", (cmd_function)w_unset_dlg_profile, 1,fixup_profile,
0, REQUEST_ROUTE| FAILURE_ROUTE | ONREPLY_ROUTE | BRANCH_ROUTE },
{"unset_dlg_profile", (cmd_function)w_unset_dlg_profile, 2,fixup_profile,
0, REQUEST_ROUTE| FAILURE_ROUTE | ONREPLY_ROUTE | BRANCH_ROUTE },
{"is_in_profile", (cmd_function)w_is_in_profile, 1,fixup_profile,
0, ANY_ROUTE },
{"is_in_profile", (cmd_function)w_is_in_profile, 2,fixup_profile,
0, ANY_ROUTE },
{"get_profile_size",(cmd_function)w_get_profile_size2, 2,fixup_get_profile2,
0, ANY_ROUTE },
{"get_profile_size",(cmd_function)w_get_profile_size3, 3,fixup_get_profile3,
0, ANY_ROUTE },
{"dlg_setflag", (cmd_function)w_dlg_setflag, 1,fixup_igp_null,
0, ANY_ROUTE },
{"dlg_resetflag", (cmd_function)w_dlg_resetflag, 1,fixup_igp_null,
0, ANY_ROUTE },
{"dlg_isflagset", (cmd_function)w_dlg_isflagset, 1,fixup_igp_null,
0, ANY_ROUTE },
{"dlg_bye",(cmd_function)w_dlg_bye, 1,fixup_dlg_bye,
0, ANY_ROUTE },
{"dlg_refer",(cmd_function)w_dlg_refer, 2,fixup_dlg_refer,
0, ANY_ROUTE },
{"dlg_bridge",(cmd_function)w_dlg_bridge, 3,fixup_dlg_bridge,
0, ANY_ROUTE },
{"dlg_get",(cmd_function)w_dlg_get, 3,fixup_dlg_bridge,
0, ANY_ROUTE },
{"is_known_dlg", (cmd_function)w_is_known_dlg, 0, NULL,
0, ANY_ROUTE },
{"dlg_set_timeout", (cmd_function)w_dlg_set_timeout, 1,fixup_igp_null,
0, ANY_ROUTE },
{"dlg_set_timeout", (cmd_function)w_dlg_set_timeout, 3,fixup_igp_all,
0, ANY_ROUTE },
{"dlg_set_timeout_by_profile",
(cmd_function) w_dlg_set_timeout_by_profile2, 2, fixup_profile,
0, ANY_ROUTE },
{"dlg_set_timeout_by_profile",
(cmd_function) w_dlg_set_timeout_by_profile3, 3, fixup_profile,
0, ANY_ROUTE },
{"dlg_set_property", (cmd_function)w_dlg_set_property,1,fixup_spve_null,
0, ANY_ROUTE },
{"dlg_remote_profile", (cmd_function)w_dlg_remote_profile, 5, fixup_dlg_remote_profile,
0, ANY_ROUTE },
{"load_dlg", (cmd_function)load_dlg, 0, 0, 0, 0},
{0,0,0,0,0,0}
};
static param_export_t mod_params[]={
{ "enable_stats", INT_PARAM, &dlg_enable_stats },
{ "hash_size", INT_PARAM, &dlg_hash_size },
{ "rr_param", PARAM_STRING, &rr_param },
{ "dlg_flag", INT_PARAM, &dlg_flag },
{ "timeout_avp", PARAM_STR, &timeout_spec },
{ "default_timeout", INT_PARAM, &default_timeout },
{ "dlg_extra_hdrs", PARAM_STR, &dlg_extra_hdrs },
{ "dlg_match_mode", INT_PARAM, &seq_match_mode },
{ "detect_spirals", INT_PARAM, &detect_spirals, },
{ "db_url", PARAM_STR, &db_url },
{ "db_mode", INT_PARAM, &dlg_db_mode_param },
{ "table_name", PARAM_STR, &dialog_table_name },
{ "call_id_column", PARAM_STR, &call_id_column },
{ "from_uri_column", PARAM_STR, &from_uri_column },
{ "from_tag_column", PARAM_STR, &from_tag_column },
{ "to_uri_column", PARAM_STR, &to_uri_column },
{ "to_tag_column", PARAM_STR, &to_tag_column },
{ "h_id_column", PARAM_STR, &h_id_column },
{ "h_entry_column", PARAM_STR, &h_entry_column },
{ "state_column", PARAM_STR, &state_column },
{ "start_time_column", PARAM_STR, &start_time_column },
{ "timeout_column", PARAM_STR, &timeout_column },
{ "to_cseq_column", PARAM_STR, &to_cseq_column },
{ "from_cseq_column", PARAM_STR, &from_cseq_column },
{ "to_route_column", PARAM_STR, &to_route_column },
{ "from_route_column", PARAM_STR, &from_route_column },
{ "to_contact_column", PARAM_STR, &to_contact_column },
{ "from_contact_column", PARAM_STR, &from_contact_column },
{ "to_sock_column", PARAM_STR, &to_sock_column },
{ "from_sock_column", PARAM_STR, &from_sock_column },
{ "sflags_column", PARAM_STR, &sflags_column },
{ "toroute_name_column", PARAM_STR, &toroute_name_column },
{ "vars_table_name", PARAM_STR, &dialog_vars_table_name },
{ "vars_h_id_column", PARAM_STR, &vars_h_id_column },
{ "vars_h_entry_column", PARAM_STR, &vars_h_entry_column },
{ "vars_key_column", PARAM_STR, &vars_key_column },
{ "vars_value_column", PARAM_STR, &vars_value_column },
{ "db_update_period", INT_PARAM, &db_update_period },
{ "db_fetch_rows", INT_PARAM, &db_fetch_rows },
{ "profiles_with_value", PARAM_STRING, &profiles_wv_s },
{ "profiles_no_value", PARAM_STRING, &profiles_nv_s },
{ "bridge_controller", PARAM_STR, &dlg_bridge_controller },
{ "bridge_contact", PARAM_STR, &dlg_bridge_contact },
{ "ruri_pvar", PARAM_STR, &ruri_pvar_param },
{ "initial_cbs_inscript", INT_PARAM, &initial_cbs_inscript },
{ "send_bye", INT_PARAM, &dlg_send_bye },
{ "wait_ack", INT_PARAM, &dlg_wait_ack },
{ "xavp_cfg", PARAM_STR, &dlg_xavp_cfg },
{ "ka_timer", INT_PARAM, &dlg_ka_timer },
{ "ka_interval", INT_PARAM, &dlg_ka_interval },
{ "timeout_noreset", INT_PARAM, &dlg_timeout_noreset },
{ "timer_procs", PARAM_INT, &dlg_timer_procs },
{ "track_cseq_updates", PARAM_INT, &_dlg_track_cseq_updates },
{ "lreq_callee_headers", PARAM_STR, &dlg_lreq_callee_headers },
{ "db_skip_load", INT_PARAM, &db_skip_load },
{ 0,0,0 }
};
static stat_export_t mod_stats[] = {
{"active_dialogs" , STAT_NO_RESET, &active_dlgs },
{"early_dialogs", STAT_NO_RESET, &early_dlgs },
{"processed_dialogs" , 0, &processed_dlgs },
{"expired_dialogs" , 0, &expired_dlgs },
{"failed_dialogs", 0, &failed_dlgs },
{0,0,0}
};
struct mi_root * mi_dlg_bridge(struct mi_root *cmd_tree, void *param);
static mi_export_t mi_cmds[] = {
{ "dlg_list", mi_print_dlgs, 0, 0, 0},
{ "dlg_list_ctx", mi_print_dlgs_ctx, 0, 0, 0},
{ "dlg_end_dlg", mi_terminate_dlg, 0, 0, 0},
{ "dlg_terminate_dlg", mi_terminate_dlgs, 0, 0, 0},
{ "profile_get_size", mi_get_profile, 0, 0, 0},
{ "profile_list_dlgs", mi_profile_list, 0, 0, 0},
{ "dlg_bridge", mi_dlg_bridge, 0, 0, 0},
{ 0, 0, 0, 0, 0}
};
static rpc_export_t rpc_methods[];
static pv_export_t mod_items[] = {
{ {"DLG_count", sizeof("DLG_count")-1}, PVT_OTHER, pv_get_dlg_count, 0,
0, 0, 0, 0 },
{ {"DLG_lifetime",sizeof("DLG_lifetime")-1}, PVT_OTHER, pv_get_dlg_lifetime, 0,
0, 0, 0, 0 },
{ {"DLG_status", sizeof("DLG_status")-1}, PVT_OTHER, pv_get_dlg_status, 0,
0, 0, 0, 0 },
{ {"dlg_ctx", sizeof("dlg_ctx")-1}, PVT_OTHER, pv_get_dlg_ctx,
pv_set_dlg_ctx, pv_parse_dlg_ctx_name, 0, 0, 0 },
{ {"dlg", sizeof("dlg")-1}, PVT_OTHER, pv_get_dlg,
0, pv_parse_dlg_name, 0, 0, 0 },
{ {"dlg_var", sizeof("dlg_var")-1}, PVT_OTHER, pv_get_dlg_variable,
pv_set_dlg_variable, pv_parse_dialog_var_name, 0, 0, 0},
{ {0, 0}, 0, 0, 0, 0, 0, 0, 0 }
};
struct module_exports exports= {
"dialog", /* module's name */
DEFAULT_DLFLAGS, /* dlopen flags */
cmds, /* exported functions */
mod_params, /* param exports */
mod_stats, /* exported statistics */
mi_cmds, /* exported MI functions */
mod_items, /* exported pseudo-variables */
0, /* extra processes */
mod_init, /* module initialization function */
0, /* reply processing function */
mod_destroy,
child_init /* per-child init function */
};
static int fixup_profile(void** param, int param_no)
{
struct dlg_profile_table *profile;
pv_elem_t *model=NULL;
str s;
s.s = (char*)(*param);
s.len = strlen(s.s);
if(s.len==0) {
LM_ERR("param %d is empty string!\n", param_no);
return E_CFG;
}
if (param_no==1) {
profile = search_dlg_profile( &s );
if (profile==NULL) {
LM_CRIT("profile <%s> not defined\n",s.s);
return E_CFG;
}
pkg_free(*param);
*param = (void*)profile;
return 0;
} else if (param_no==2) {
if(pv_parse_format(&s ,&model) || model==NULL) {
LM_ERR("wrong format [%s] for value param!\n", s.s);
return E_CFG;
}
*param = (void*)model;
}
return 0;
}
static int fixup_get_profile2(void** param, int param_no)
{
pv_spec_t *sp;
int ret;
if (param_no==1) {
return fixup_profile(param, 1);
} else if (param_no==2) {
ret = fixup_pvar_null(param, 1);
if (ret<0) return ret;
sp = (pv_spec_t*)(*param);
if (sp->type!=PVT_AVP && sp->type!=PVT_SCRIPTVAR) {
LM_ERR("return must be an AVP or SCRIPT VAR!\n");
return E_SCRIPT;
}
}
return 0;
}
static int fixup_get_profile3(void** param, int param_no)
{
if (param_no==1) {
return fixup_profile(param, 1);
} else if (param_no==2) {
return fixup_profile(param, 2);
} else if (param_no==3) {
return fixup_get_profile2( param, 2);
}
return 0;
}
int load_dlg( struct dlg_binds *dlgb )
{
dlgb->register_dlgcb = register_dlgcb;
dlgb->terminate_dlg = dlg_bye_all;
dlgb->set_dlg_var = set_dlg_variable;
dlgb->get_dlg_var = get_dlg_variable;
dlgb->get_dlg = dlg_get_msg_dialog;
dlgb->release_dlg = dlg_release;
return 1;
}
static int pv_get_dlg_count(struct sip_msg *msg, pv_param_t *param,
pv_value_t *res)
{
int n;
int l;
char *ch;
if(msg==NULL || res==NULL)
return -1;
n = active_dlgs ? get_stat_val(active_dlgs) : 0;
l = 0;
ch = int2str( n, &l);
res->rs.s = ch;
res->rs.len = l;
res->ri = n;
res->flags = PV_VAL_STR|PV_VAL_INT|PV_TYPE_INT;
return 0;
}
static int mod_init(void)
{
unsigned int n;
if(dlg_ka_interval!=0 && dlg_ka_interval<30) {
LM_ERR("ka interval too low (%d), has to be at least 30\n",
dlg_ka_interval);
return -1;
}
dlg_event_rt[DLG_EVENTRT_START] = route_lookup(&event_rt, "dialog:start");
dlg_event_rt[DLG_EVENTRT_END] = route_lookup(&event_rt, "dialog:end");
dlg_event_rt[DLG_EVENTRT_FAILED] = route_lookup(&event_rt, "dialog:failed");
#ifdef STATISTICS
/* register statistics */
if (register_module_stats( exports.name, mod_stats)!=0 ) {
LM_ERR("failed to register %s statistics\n", exports.name);
return -1;
}
#endif
if(register_mi_mod(exports.name, mi_cmds)!=0)
{
LM_ERR("failed to register MI commands\n");
return -1;
}
if (rpc_register_array(rpc_methods)!=0) {
LM_ERR("failed to register RPC commands\n");
return -1;
}
if(faked_msg_init()<0)
return -1;
if(dlg_bridge_init_hdrs()<0)
return -1;
/* param checkings */
if (dlg_flag==-1) {
LM_ERR("no dlg flag set!!\n");
return -1;
} else if (dlg_flag>MAX_FLAG) {
LM_ERR("invalid dlg flag %d!!\n",dlg_flag);
return -1;
}
if (rr_param==0 || rr_param[0]==0) {
LM_ERR("empty rr_param!!\n");
return -1;
} else if (strlen(rr_param)>MAX_DLG_RR_PARAM_NAME) {
LM_ERR("rr_param too long (max=%d)!!\n", MAX_DLG_RR_PARAM_NAME);
return -1;
}
if (timeout_spec.s) {
if ( pv_parse_spec(&timeout_spec, &timeout_avp)==0
&& (timeout_avp.type!=PVT_AVP)){
LM_ERR("malformed or non AVP timeout "
"AVP definition in '%.*s'\n", timeout_spec.len,timeout_spec.s);
return -1;
}
}
if (default_timeout<=0) {
LM_ERR("0 default_timeout not accepted!!\n");
return -1;
}
if (ruri_pvar_param.s==NULL || ruri_pvar_param.len<=0) {
LM_ERR("invalid r-uri PV string\n");
return -1;
}
if(pv_parse_format(&ruri_pvar_param, &ruri_param_model) < 0
|| ruri_param_model==NULL) {
LM_ERR("malformed r-uri PV string: %s\n", ruri_pvar_param.s);
return -1;
}
if (initial_cbs_inscript != 0 && initial_cbs_inscript != 1) {
LM_ERR("invalid parameter for running initial callbacks in-script"
" (must be either 0 or 1)\n");
return -1;
}
if (seq_match_mode!=SEQ_MATCH_NO_ID &&
seq_match_mode!=SEQ_MATCH_FALLBACK &&
seq_match_mode!=SEQ_MATCH_STRICT_ID ) {
LM_ERR("invalid value %d for seq_match_mode param!!\n",seq_match_mode);
return -1;
}
if (detect_spirals != 0 && detect_spirals != 1) {
LM_ERR("invalid value %d for detect_spirals param!!\n",detect_spirals);
return -1;
}
if (dlg_timeout_noreset != 0 && dlg_timeout_noreset != 1) {
LM_ERR("invalid value %d for timeout_noreset param!!\n",
dlg_timeout_noreset);
return -1;
}
/* if statistics are disabled, prevent their registration to core */
if (dlg_enable_stats==0)
exports.stats = 0;
/* create profile hashes */
if (add_profile_definitions( profiles_nv_s, 0)!=0 ) {
LM_ERR("failed to add profiles without value\n");
return -1;
}
if (add_profile_definitions( profiles_wv_s, 1)!=0 ) {
LM_ERR("failed to add profiles with value\n");
return -1;
}
/* load the TM API */
if (load_tm_api(&d_tmb)!=0) {
LM_ERR("can't load TM API\n");
return -1;
}
/* load RR API also */
if (load_rr_api(&d_rrb)!=0) {
LM_ERR("can't load RR API\n");
return -1;
}
/* register callbacks*/
/* listen for all incoming requests */
if ( d_tmb.register_tmcb( 0, 0, TMCB_REQUEST_IN, dlg_onreq, 0, 0 ) <=0 ) {
LM_ERR("cannot register TMCB_REQUEST_IN callback\n");
return -1;
}
/* listen for all routed requests */
if ( d_rrb.register_rrcb( dlg_onroute, 0 ) <0 ) {
LM_ERR("cannot register RR callback\n");
return -1;
}
if (register_script_cb( profile_cleanup, POST_SCRIPT_CB|REQUEST_CB,0)<0) {
LM_ERR("cannot register script callback");
return -1;
}
if (register_script_cb(dlg_cfg_cb,
PRE_SCRIPT_CB|REQUEST_CB,0)<0)
{
LM_ERR("cannot register pre-script ctx callback\n");
return -1;
}
if (register_script_cb(dlg_cfg_cb,
POST_SCRIPT_CB|REQUEST_CB,0)<0)
{
LM_ERR("cannot register post-script ctx callback\n");
return -1;
}
if (register_script_cb(spiral_detect_reset,POST_SCRIPT_CB|REQUEST_CB,0)<0) {
LM_ERR("cannot register req pre-script spiral detection reset callback\n");
return -1;
}
if (register_script_cb(cb_dlg_locals_reset,POST_SCRIPT_CB|ONREPLY_CB,0)<0) {
LM_ERR("cannot register reply post-script dlg locals reset callback\n");
return -1;
}
if (register_script_cb(cb_dlg_locals_reset,POST_SCRIPT_CB|FAILURE_CB,0)<0) {
LM_ERR("cannot register failure post-script dlg locals reset callback\n");
return -1;
}
if(dlg_timer_procs<=0) {
if ( register_timer( dlg_timer_routine, 0, 1)<0 ) {
LM_ERR("failed to register timer \n");
return -1;
}
} else {
register_sync_timers(1);
}
/* init handlers */
init_dlg_handlers( rr_param, dlg_flag,
timeout_spec.s?&timeout_avp:0, default_timeout, seq_match_mode);
/* init timer */
if (init_dlg_timer(dlg_ontimeout)!=0) {
LM_ERR("cannot init timer list\n");
return -1;
}
/* sanitize dlg_hash_zie */
if (dlg_hash_size < 1){
LM_WARN("hash_size is smaller "
"then 1 -> rounding from %d to 1\n",
dlg_hash_size);
dlg_hash_size = 1;
}
/* initialized the hash table */
for( n=0 ; n<(8*sizeof(n)) ; n++) {
if (dlg_hash_size==(1<<n))
break;
if (n && dlg_hash_size<(1<<n)) {
LM_WARN("hash_size is not a power "
"of 2 as it should be -> rounding from %d to %d\n",
dlg_hash_size, 1<<(n-1));
dlg_hash_size = 1<<(n-1);
}
}
if ( init_dlg_table(dlg_hash_size)<0 ) {
LM_ERR("failed to create hash table\n");
return -1;
}
/* if a database should be used to store the dialogs' information */
dlg_db_mode = dlg_db_mode_param;
if (dlg_db_mode==DB_MODE_NONE) {
db_url.s = 0; db_url.len = 0;
} else {
if (dlg_db_mode!=DB_MODE_REALTIME &&
dlg_db_mode!=DB_MODE_DELAYED && dlg_db_mode!=DB_MODE_SHUTDOWN ) {
LM_ERR("unsupported db_mode %d\n", dlg_db_mode);
return -1;
}
if ( !db_url.s || db_url.len==0 ) {
LM_ERR("db_url not configured for db_mode %d\n", dlg_db_mode);
return -1;
}
if (init_dlg_db(&db_url, dlg_hash_size, db_update_period, db_fetch_rows, db_skip_load)!=0) {
LM_ERR("failed to initialize the DB support\n");
return -1;
}
run_load_callbacks();
}
destroy_dlg_callbacks( DLGCB_LOADED );
/* timer process to send keep alive requests */
if(dlg_ka_timer>0 && dlg_ka_interval>0)
register_sync_timers(1);
/* timer process to clean old unconfirmed dialogs */
register_sync_timers(1);
if(_dlg_track_cseq_updates!=0)
dlg_register_cseq_callbacks();
return 0;
}
static int child_init(int rank)
{
dlg_db_mode = dlg_db_mode_param;
if(rank==PROC_MAIN) {
if(dlg_timer_procs>0) {
if(fork_sync_timer(PROC_TIMER, "Dialog Main Timer", 1 /*socks flag*/,
dlg_timer_routine, NULL, 1 /*every sec*/)<0) {
LM_ERR("failed to start main timer routine as process\n");
return -1; /* error */
}
}
if(dlg_ka_timer>0 && dlg_ka_interval>0) {
if(fork_sync_timer(PROC_TIMER, "Dialog KA Timer", 1 /*socks flag*/,
dlg_ka_timer_exec, NULL, dlg_ka_timer /*sec*/)<0) {
LM_ERR("failed to start ka timer routine as process\n");
return -1; /* error */
}
}
if(fork_sync_timer(PROC_TIMER, "Dialog Clean Timer", 1 /*socks flag*/,
dlg_clean_timer_exec, NULL, dlg_clean_timer /*sec*/)<0) {
LM_ERR("failed to start clean timer routine as process\n");
return -1; /* error */
}
}
if (rank==1) {
if_update_stat(dlg_enable_stats, active_dlgs, active_dlgs_cnt);
if_update_stat(dlg_enable_stats, early_dlgs, early_dlgs_cnt);
}
if ( ((dlg_db_mode==DB_MODE_REALTIME || dlg_db_mode==DB_MODE_DELAYED) &&
(rank>0 || rank==PROC_TIMER)) ||
(dlg_db_mode==DB_MODE_SHUTDOWN && (rank==PROC_MAIN)) ) {
if ( dlg_connect_db(&db_url) ) {
LM_ERR("failed to connect to database (rank=%d)\n",rank);
return -1;
}
}
/* in DB_MODE_SHUTDOWN only PROC_MAIN will do a DB dump at the end, so
* for the rest of the processes will be the same as DB_MODE_NONE */
if (dlg_db_mode==DB_MODE_SHUTDOWN && rank!=PROC_MAIN)
dlg_db_mode = DB_MODE_NONE;
/* in DB_MODE_REALTIME and DB_MODE_DELAYED the PROC_MAIN have no DB handle */
if ( (dlg_db_mode==DB_MODE_REALTIME || dlg_db_mode==DB_MODE_DELAYED) &&
rank==PROC_MAIN)
dlg_db_mode = DB_MODE_NONE;
return 0;
}
static void mod_destroy(void)
{
if(dlg_db_mode == DB_MODE_DELAYED || dlg_db_mode == DB_MODE_SHUTDOWN) {
dialog_update_db(0, 0);
destroy_dlg_db();
}
dlg_bridge_destroy_hdrs();
/* no DB interaction from now on */
dlg_db_mode = DB_MODE_NONE;
destroy_dlg_table();
destroy_dlg_timer();
destroy_dlg_callbacks( DLGCB_CREATED|DLGCB_LOADED );
destroy_dlg_handlers();
destroy_dlg_profiles();
}
static int w_set_dlg_profile(struct sip_msg *msg, char *profile, char *value)
{
pv_elem_t *pve;
str val_s;
pve = (pv_elem_t *)value;
if (((struct dlg_profile_table*)profile)->has_value) {
if ( pve==NULL || pv_printf_s(msg, pve, &val_s)!=0 ||
val_s.len == 0 || val_s.s == NULL) {
LM_WARN("cannot get string for value\n");
return -1;
}
if ( set_dlg_profile( msg, &val_s,
(struct dlg_profile_table*)profile) < 0 ) {
LM_ERR("failed to set profile");
return -1;
}
} else {
if ( set_dlg_profile( msg, NULL,
(struct dlg_profile_table*)profile) < 0 ) {
LM_ERR("failed to set profile");
return -1;
}
}
return 1;
}
static int w_unset_dlg_profile(struct sip_msg *msg, char *profile, char *value)
{
pv_elem_t *pve;
str val_s;
pve = (pv_elem_t *)value;
if (((struct dlg_profile_table*)profile)->has_value) {
if ( pve==NULL || pv_printf_s(msg, pve, &val_s)!=0 ||
val_s.len == 0 || val_s.s == NULL) {
LM_WARN("cannot get string for value\n");
return -1;
}
if ( unset_dlg_profile( msg, &val_s,
(struct dlg_profile_table*)profile) < 0 ) {
LM_ERR("failed to unset profile");
return -1;
}
} else {
if ( unset_dlg_profile( msg, NULL,
(struct dlg_profile_table*)profile) < 0 ) {
LM_ERR("failed to unset profile");
return -1;
}
}
return 1;
}
static int w_is_in_profile(struct sip_msg *msg, char *profile, char *value)
{
pv_elem_t *pve;
str val_s;
pve = (pv_elem_t *)value;
if ( pve!=NULL && ((struct dlg_profile_table*)profile)->has_value) {
if ( pv_printf_s(msg, pve, &val_s)!=0 ||
val_s.len == 0 || val_s.s == NULL) {
LM_WARN("cannot get string for value\n");
return -1;
}
return is_dlg_in_profile( msg, (struct dlg_profile_table*)profile,
&val_s);
} else {
return is_dlg_in_profile( msg, (struct dlg_profile_table*)profile,
NULL);
}
}
/**
* get dynamic name profile size
*/
static int w_get_profile_size3(struct sip_msg *msg, char *profile,
char *value, char *result)
{
pv_elem_t *pve;
str val_s;
pv_spec_t *sp_dest;
unsigned int size;
pv_value_t val;
if(result!=NULL)
{
pve = (pv_elem_t *)value;
sp_dest = (pv_spec_t *)result;
} else {
pve = NULL;
sp_dest = (pv_spec_t *)value;
}
if ( pve!=NULL && ((struct dlg_profile_table*)profile)->has_value) {
if ( pv_printf_s(msg, pve, &val_s)!=0 ||
val_s.len == 0 || val_s.s == NULL) {
LM_WARN("cannot get string for value\n");
return -1;
}
size = get_profile_size( (struct dlg_profile_table*)profile, &val_s );
} else {
size = get_profile_size( (struct dlg_profile_table*)profile, NULL );
}
memset(&val, 0, sizeof(pv_value_t));
val.flags = PV_VAL_INT|PV_TYPE_INT;
val.ri = (int)size;
if(sp_dest->setf(msg, &sp_dest->pvp, (int)EQ_T, &val)<0)
{
LM_ERR("setting profile PV failed\n");
return -1;
}
return 1;
}
/**
* get static name profile size
*/
static int w_get_profile_size2(struct sip_msg *msg, char *profile, char *result)
{
return w_get_profile_size3(msg, profile, result, NULL);
}
static int w_dlg_setflag(struct sip_msg *msg, char *flag, char *s2)
{
dlg_ctx_t *dctx;
dlg_cell_t *d;
int val;
if(fixup_get_ivalue(msg, (gparam_p)flag, &val)!=0)
{
LM_ERR("no flag value\n");
return -1;
}
if(val<0 || val>31)
return -1;
if ( (dctx=dlg_get_dlg_ctx())==NULL )
return -1;
dctx->flags |= 1<<val;
d = dlg_get_by_iuid(&dctx->iuid);
if(d!=NULL) {
d->sflags |= 1<<val;
dlg_release(d);
}
return 1;
}
static int w_dlg_resetflag(struct sip_msg *msg, char *flag, str *s2)
{
dlg_ctx_t *dctx;
dlg_cell_t *d;
int val;
if(fixup_get_ivalue(msg, (gparam_p)flag, &val)!=0)
{
LM_ERR("no flag value\n");
return -1;
}
if(val<0 || val>31)
return -1;
if ( (dctx=dlg_get_dlg_ctx())==NULL )
return -1;
dctx->flags &= ~(1<<val);
d = dlg_get_by_iuid(&dctx->iuid);
if(d!=NULL) {
d->sflags &= ~(1<<val);
dlg_release(d);
}
return 1;
}
static int w_dlg_isflagset(struct sip_msg *msg, char *flag, str *s2)
{
dlg_ctx_t *dctx;
dlg_cell_t *d;
int val;
int ret;
if(fixup_get_ivalue(msg, (gparam_p)flag, &val)!=0)
{
LM_ERR("no flag value\n");
return -1;
}
if(val<0 || val>31)
return -1;
if ( (dctx=dlg_get_dlg_ctx())==NULL )
return -1;
d = dlg_get_by_iuid(&dctx->iuid);
if(d!=NULL) {
ret = (d->sflags&(1<<val))?1:-1;
dlg_release(d);
return ret;
}