/**
* $Id$
*
* Copyright (C) 2010 Daniel-Constantin Mierla (asipto.com)
*
* This file is part of Kamailio, a free SIP server.
*
* This file 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
*
*
* This file 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include "../../sr_module.h"
#include "../../dprint.h"
#include "../../ut.h"
#include "../../mod_fix.h"
#include "../../parser/parse_param.h"
#include "../../shm_init.h"
#include "../../script_cb.h"
#include "debugger_api.h"
#include "debugger_config.h"
MODULE_VERSION
static int mod_init(void);
static int child_init(int rank);
static void mod_destroy(void);
static int w_dbg_breakpoint(struct sip_msg* msg, char* point, char* str2);
static int fixup_dbg_breakpoint(void** param, int param_no);
static int dbg_mod_level_param(modparam_t type, void *val);
static int fixup_dbg_pv_dump(void** param, int param_no);
static int w_dbg_dump(struct sip_msg* msg, char* mask, char* level);
/* parameters */
extern int _dbg_cfgtrace;
extern int _dbg_cfgpkgcheck;
extern int _dbg_breakpoint;
extern int _dbg_cfgtrace_level;
extern int _dbg_cfgtrace_facility;
extern char *_dbg_cfgtrace_prefix;
extern int _dbg_step_usleep;
extern int _dbg_step_loops;
extern int _dbg_reset_msgid;
static char * _dbg_cfgtrace_facility_str = 0;
static int _dbg_log_assign = 0;
static cmd_export_t cmds[]={
{"dbg_breakpoint", (cmd_function)w_dbg_breakpoint, 1,
fixup_dbg_breakpoint, 0, ANY_ROUTE},
{"dbg_pv_dump", (cmd_function)w_dbg_dump, 0,
fixup_dbg_pv_dump, 0, ANY_ROUTE},
{"dbg_pv_dump", (cmd_function)w_dbg_dump, 1,
fixup_dbg_pv_dump, 0, ANY_ROUTE},
{"dbg_pv_dump", (cmd_function)w_dbg_dump, 2,
fixup_dbg_pv_dump, 0, ANY_ROUTE},
{0, 0, 0, 0, 0, 0}
};
static param_export_t params[]={
{"cfgtrace", INT_PARAM, &_dbg_cfgtrace},
{"breakpoint", INT_PARAM, &_dbg_breakpoint},
{"log_level", INT_PARAM, &_dbg_cfgtrace_level},
{"log_facility", STR_PARAM, &_dbg_cfgtrace_facility_str},
{"log_prefix", STR_PARAM, &_dbg_cfgtrace_prefix},
{"log_assign", INT_PARAM, &_dbg_log_assign},
{"step_usleep", INT_PARAM, &_dbg_step_usleep},
{"step_loops", INT_PARAM, &_dbg_step_loops},
{"mod_hash_size", INT_PARAM, &default_dbg_cfg.mod_hash_size},
{"mod_level_mode", INT_PARAM, &default_dbg_cfg.mod_level_mode},
{"mod_level", STR_PARAM|USE_FUNC_PARAM, (void*)dbg_mod_level_param},
{"reset_msgid", INT_PARAM, &_dbg_reset_msgid},
{"cfgpkgcheck", INT_PARAM, &_dbg_cfgpkgcheck},
{0, 0, 0}
};
struct module_exports exports = {
"debugger",
DEFAULT_DLFLAGS, /* dlopen flags */
cmds,
params,
0,
0, /* exported MI functions */
0, /* exported pseudo-variables */
0, /* extra processes */
mod_init, /* module initialization function */
0, /* response function */
mod_destroy, /* destroy function */
child_init /* per child init function */
};
/**
* init module function
*/
static int mod_init(void)
{
int fl;
if (_dbg_cfgtrace_facility_str!=NULL)
{
fl = str2facility(_dbg_cfgtrace_facility_str);
if (fl != -1)
{
_dbg_cfgtrace_facility = fl;
} else {
LM_ERR("invalid log facility configured");
return -1;
}
}
if(dbg_init_rpc()!=0)
{
LM_ERR("failed to register RPC commands\n");
return -1;
}
if(cfg_declare("dbg", dbg_cfg_def, &default_dbg_cfg, cfg_sizeof(dbg), &dbg_cfg))
{
LM_ERR("Fail to declare the configuration\n");
return -1;
}
/* anyhow, should fail before */
if (!dbg_cfg) {
return -1;
}
LM_DBG("cfg level_mode:%d hash_size:%d\n",
cfg_get(dbg, dbg_cfg, mod_level_mode),
cfg_get(dbg, dbg_cfg, mod_hash_size));
if(dbg_init_mod_levels(cfg_get(dbg, dbg_cfg, mod_hash_size))<0)
{
LM_ERR("failed to init per module log level\n");
return -1;
}
if(_dbg_log_assign>0)
{
if(dbg_init_pvcache()!=0)
{
LM_ERR("failed to create pvcache\n");
return -1;
}
}
if(_dbg_reset_msgid==1)
{
unsigned int ALL = REQUEST_CB+FAILURE_CB+ONREPLY_CB
+BRANCH_CB+ONSEND_CB+ERROR_CB+LOCAL_CB+EVENT_CB+BRANCH_FAILURE_CB;
if (register_script_cb(dbg_msgid_filter, PRE_SCRIPT_CB|ALL, 0) != 0) {
LM_ERR("could not insert callback");
return -1;
}
}
return dbg_init_bp_list();
}
/**
* child init function
*/
static int child_init(int rank)
{
LM_DBG("rank is (%d)\n", rank);
if (rank==PROC_INIT) {
dbg_enable_mod_levels();
dbg_enable_log_assign();
return dbg_init_pid_list();
}
return dbg_init_mypid();
}
/**
* destroy module function
*/
static void mod_destroy(void)
{
dbg_cfg = NULL;
}
/**
* cfg wrapper to set breakpoint (not implemented yet)
*/
static int w_dbg_breakpoint(struct sip_msg* msg, char* point, char* str2)
{
return 1;
}
/**
* fixup for cfg dbg_pv_dump
*/
static int fixup_dbg_pv_dump(void** param, int param_no)
{
unsigned int mask;
int level;
str s = STR_NULL;
switch(param_no)
{
case 2:
switch(((char*)(*param))[2])
{
case 'A': level = L_ALERT; break;
case 'B': level = L_BUG; break;
case 'C': level = L_CRIT2; break;
case 'E': level = L_ERR; break;
case 'W': level = L_WARN; break;
case 'N': level = L_NOTICE; break;
case 'I': level = L_INFO; break;
case 'D': level = L_DBG; break;
default:
LM_ERR("unknown log level\n");
return E_UNSPEC;
}
*param = (void*)(long)level;
break;
case 1:
s.s = *param;
s.len = strlen(s.s);
if(str2int(&s, &mask) == 0) {
*param = (void*)(long)mask;
}
else return E_UNSPEC;
break;
}
return 0;
}
/**
* dump pv_cache contents as json
*/
static int w_dbg_dump(struct sip_msg* msg, char* mask, char* level)
{
unsigned int umask = DBG_DP_ALL;
int ilevel = L_DBG;
if(level!=NULL){
ilevel = (int)(long)level;
}
if(mask!=NULL){
umask = (unsigned int)(unsigned long)mask;
}
dbg_dump_json(msg, umask, ilevel);
return 1;
}
/**
* get the pointer to action structure
*/
static struct action *dbg_fixup_get_action(void **param, int param_no)
{
struct action *ac, ac2;
action_u_t *au, au2;
/* param points to au->u.string, get pointer to au */
au = (void*) ((char *)param - ((char *)&au2.u.string-(char *)&au2));
au = au - 1 - param_no;
ac = (void*) ((char *)au - ((char *)&ac2.val-(char *)&ac2));
return ac;
}
/**
* fixup for cfg set breakpoint function
*/
static int fixup_dbg_breakpoint(void** param, int param_no)
{
struct action *a;
char *p;
if(param_no!=1)
return -1;
a = dbg_fixup_get_action(param, param_no);
p = (char*)(*param);
return dbg_add_breakpoint(a, (*p=='0')?0:1);
}
static int dbg_mod_level_param(modparam_t type, void *val)
{
char *p;
str s;
int l;
if(val==NULL)
return -1;
p = strchr((char*)val, '=');
if(p==NULL) {
LM_ERR("invalid parameter value: %s\n", (char*)val);
return -1;
}
s.s = p + 1;
s.len = strlen(s.s);
if(str2sint(&s, &l)<0) {
LM_ERR("invalid parameter - level value: %s\n", (char*)val);
return -1;
}
s.s = (char*)val;
s.len = p - s.s;
if (!dbg_cfg) {
return -1;
}
LM_DBG("cfg level_mode:%d hash_size:%d\n",
cfg_get(dbg, dbg_cfg, mod_level_mode),
cfg_get(dbg, dbg_cfg, mod_hash_size));
if(dbg_init_mod_levels(cfg_get(dbg, dbg_cfg, mod_hash_size))<0)
{
LM_ERR("failed to init per module log level\n");
return -1;
}
if(dbg_set_mod_debug_level(s.s, s.len, &l)<0)
{
LM_ERR("cannot store parameter: %s\n", (char*)val);
return -1;
}
return 0;
}