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kamailio/modules/app_mono/app_mono_mod.c

224 lines
4.9 KiB

/**
* $Id$
*
* Copyright (C) 2011 Daniel-Constantin Mierla (asipto.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
*
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include "../../sr_module.h"
#include "../../dprint.h"
#include "../../ut.h"
#include "../../mod_fix.h"
#include "app_mono_api.h"
MODULE_VERSION
/** parameters */
/* List of allowed chars for a prefix*/
static int mod_init(void);
static void mod_destroy(void);
static int child_init(int rank);
static int w_app_mono_exec(struct sip_msg *msg, char *script, char *mparam);
static int w_app_mono_run(struct sip_msg *msg, char *mparam, char *extra);
static int fixup_mono_exec(void** param, int param_no);
int app_mono_load_param(modparam_t type, void *val);
int app_mono_register_param(modparam_t type, void *val);
static param_export_t params[]={
{"load", PARAM_STRING|USE_FUNC_PARAM, (void*)app_mono_load_param},
{"register", PARAM_STRING|USE_FUNC_PARAM, (void*)app_mono_register_param},
{0, 0, 0}
};
static cmd_export_t cmds[]={
{"mono_exec", (cmd_function)w_app_mono_exec, 1, fixup_mono_exec,
0, ANY_ROUTE},
{"mono_exec", (cmd_function)w_app_mono_exec, 2, fixup_mono_exec,
0, ANY_ROUTE},
{"mono_run", (cmd_function)w_app_mono_run, 0, 0,
0, ANY_ROUTE},
{"mono_run", (cmd_function)w_app_mono_run, 1, fixup_spve_null,
0, ANY_ROUTE},
{0, 0, 0, 0, 0, 0}
};
struct module_exports exports = {
"app_mono",
RTLD_NOW | RTLD_GLOBAL, /* 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)
{
mono_sr_init_mod();
return 0;
}
/* each child get a new connection to the database */
static int child_init(int rank)
{
if(rank==PROC_MAIN || rank==PROC_TCP_MAIN)
return 0; /* do nothing for the main process */
if (rank==PROC_INIT)
{
/* do a probe before forking */
if(mono_sr_init_probe()!=0)
return -1;
return 0;
}
if(mono_sr_init_child()<0)
return -1;
if(mono_sr_init_load()<0)
return -1;
return 0;
}
static void mod_destroy(void)
{
mono_sr_destroy();
}
char _mono_buf_stack[2][512];
/**
*
*/
static int w_app_mono_exec(struct sip_msg *msg, char *script, char *mparam)
{
str s;
str p;
if(!mono_sr_initialized())
{
LM_ERR("Lua env not intitialized");
return -1;
}
if(fixup_get_svalue(msg, (gparam_p)script, &s)<0)
{
LM_ERR("cannot get the script\n");
return -1;
}
if(s.len>=511)
{
LM_ERR("script too long %d\n", s.len);
return -1;
}
if(mparam!=NULL)
{
if(fixup_get_svalue(msg, (gparam_p)mparam, &p)<0)
{
LM_ERR("cannot get the parameter\n");
return -1;
}
if(p.len>=511)
{
LM_ERR("parameter value too long %d\n", p.len);
return -1;
}
memcpy(_mono_buf_stack[1], p.s, p.len);
_mono_buf_stack[1][p.len] = '\0';
}
memcpy(_mono_buf_stack[0], s.s, s.len);
_mono_buf_stack[0][s.len] = '\0';
return app_mono_exec(msg, _mono_buf_stack[0],
(mparam)?_mono_buf_stack[1]:NULL);
}
/**
*
*/
static int w_app_mono_run(struct sip_msg *msg, char *mparam, char *extra)
{
str p;
if(!mono_sr_initialized())
{
LM_ERR("Lua env not intitialized");
return -1;
}
if(mparam!=NULL)
{
if(fixup_get_svalue(msg, (gparam_p)mparam, &p)<0)
{
LM_ERR("cannot get the parameter\n");
return -1;
}
if(p.len>=511)
{
LM_ERR("parameter value too long %d\n", p.len);
return -1;
}
memcpy(_mono_buf_stack[0], p.s, p.len);
_mono_buf_stack[0][p.len] = '\0';
}
return app_mono_run(msg, (mparam)?_mono_buf_stack[0]:NULL);
}
int app_mono_load_param(modparam_t type, void *val)
{
if(val==NULL)
return -1;
return sr_mono_load_script((char*)val);
}
int app_mono_register_param(modparam_t type, void *val)
{
if(val==NULL)
return -1;
return sr_mono_register_module((char*)val);
}
static int fixup_mono_exec(void** param, int param_no)
{
if(sr_mono_assembly_loaded())
{
LM_ERR("cannot use lua_exec(...) when an assembly is loaded\n");
return -1;
}
return fixup_spve_null(param, 1);
}