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kamailio/modules/misc_radius/misc_radius.c

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8.5 KiB

/*
* misc_radius.c -- various radius based functions
*
* Copyright (C) 2004-2008 Juha Heinanen <jh@tutpro.com>
* Copyright (C) 2004 FhG Fokus
*
* 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
*
* History:
* -------
* 2005-07-08: Radius AVP may contain any kind of Kamailio AVP - ID/name or
* int/str value (bogdan)
* 2008-09-03 New implementation where avp_load_radius() function is replaced
* by radius_load_caller_avps() and radius_load_callee_avps(callee)
* functions that take caller and callee as string parameter that
* may contain pseudo variables. Support for adding function
* specific extra attributes defined by module parameters.
*/
#include "../../sr_module.h"
#include "../../mem/mem.h"
#include "../../parser/digest/digest_parser.h"
#include "../../parser/digest/digest.h"
#include "../../parser/parse_uri.h"
#include "../../parser/parse_from.h"
#include "../../usr_avp.h"
#include "../../ut.h"
#include "../../config.h"
#include "../../lib/kcore/radius.h"
#include "../../mod_fix.h"
#include "misc_radius.h"
#include "functions.h"
#include "extra.h"
MODULE_VERSION
static int mod_init(void);
static void destroy(void);
/* Module parameter variables */
static char *radius_config = DEFAULT_RADIUSCLIENT_CONF;
static int caller_service_type = -1;
static int callee_service_type = -1;
static int group_service_type = -1;
static int uri_service_type = -1;
int common_response = 0;
int use_sip_uri_host = 0;
void *rh;
static char *caller_extra_str = 0;
struct extra_attr *caller_extra = 0;
static char *callee_extra_str = 0;
struct extra_attr *callee_extra = 0;
static char *group_extra_str = 0;
struct extra_attr *group_extra = 0;
static char *uri_extra_str = 0;
struct extra_attr *uri_extra = 0;
struct attr caller_attrs[SA_STATIC_MAX+MAX_EXTRA];
struct attr callee_attrs[SA_STATIC_MAX+MAX_EXTRA];
struct attr group_attrs[SA_STATIC_MAX+MAX_EXTRA];
struct attr uri_attrs[SA_STATIC_MAX+MAX_EXTRA];
struct val caller_vals[RV_STATIC_MAX];
struct val callee_vals[EV_STATIC_MAX];
struct val group_vals[GV_STATIC_MAX];
struct val uri_vals[UV_STATIC_MAX];
/*
* Exported functions
*/
static cmd_export_t cmds[] = {
{"radius_load_caller_avps", (cmd_function)radius_load_caller_avps, 1,
fixup_spve_null, 0, REQUEST_ROUTE | FAILURE_ROUTE},
{"radius_load_callee_avps", (cmd_function)radius_load_callee_avps, 1,
fixup_spve_null, 0, REQUEST_ROUTE | FAILURE_ROUTE},
{"radius_is_user_in", (cmd_function)radius_is_user_in, 2,
fixup_spve_str, 0,
REQUEST_ROUTE|FAILURE_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE},
{"radius_does_uri_exist", (cmd_function)radius_does_uri_exist_0,
0, 0, 0, REQUEST_ROUTE|LOCAL_ROUTE},
{"radius_does_uri_exist", (cmd_function)radius_does_uri_exist_1,
1, fixup_pvar_null, fixup_free_pvar_null, REQUEST_ROUTE|LOCAL_ROUTE},
{"radius_does_uri_user_exist",
(cmd_function)radius_does_uri_user_exist_0,
0, 0, 0, REQUEST_ROUTE|LOCAL_ROUTE},
{"radius_does_uri_user_exist",
(cmd_function)radius_does_uri_user_exist_1,
1, fixup_pvar_null, fixup_free_pvar_null, REQUEST_ROUTE|LOCAL_ROUTE},
{0, 0, 0, 0, 0, 0}
};
/*
* Exported parameters
*/
static param_export_t params[] = {
{"radius_config", PARAM_STRING, &radius_config },
{"caller_service_type", INT_PARAM, &caller_service_type},
{"callee_service_type", INT_PARAM, &callee_service_type},
{"group_service_type", INT_PARAM, &group_service_type },
{"uri_service_type", INT_PARAM, &uri_service_type },
{"caller_extra", PARAM_STRING, &caller_extra_str },
{"callee_extra", PARAM_STRING, &callee_extra_str },
{"group_extra", PARAM_STRING, &group_extra_str },
{"uri_extra", PARAM_STRING, &uri_extra_str },
{"use_sip_uri_host", INT_PARAM, &use_sip_uri_host },
{"common_response", INT_PARAM, &common_response },
{0, 0, 0}
};
struct module_exports exports = {
"misc_radius",
DEFAULT_DLFLAGS, /* dlopen flags */
cmds, /* Exported commands */
params, /* Exported parameters */
0, /* exported statistics */
0, /* exported MI functions */
0, /* exported pseudo-variables */
0, /* extra processes */
mod_init, /* module initialization function */
0, /* response function*/
destroy, /* destroy function */
0 /* per-child init function */
};
/* Macro to set static attribute names */
#define SET_STATIC(_attrs) \
do { \
memset((_attrs), 0, sizeof((_attrs))); \
(_attrs)[SA_SERVICE_TYPE].n = "Service-Type"; \
(_attrs)[SA_USER_NAME].n = "User-Name"; \
(_attrs)[SA_SIP_AVP].n = "SIP-AVP"; \
(_attrs)[SA_SIP_GROUP].n = "SIP-Group"; \
if (use_sip_uri_host) { \
(_attrs)[SA_SIP_URI_HOST].n = "SIP-URI-Host"; \
} else { \
(_attrs)[SA_SIP_URI_HOST].n = "User-Name"; \
} \
n = SA_STATIC_MAX; \
}while(0)
static int mod_init(void)
{
int n;
LM_INFO("initializing...\n");
/* read config */
if ((rh = rc_read_config(radius_config)) == NULL) {
LM_ERR("failed to open radius config file: %s\n", radius_config);
return -1;
}
/* read dictionary */
if (rc_read_dictionary(rh, rc_conf_str(rh, "dictionary")) != 0) {
LM_ERR("failed to read radius dictionary\n");
return -1;
}
/* init the extra engine */
init_extra_engine();
/* parse extra attributes (if any) */
if (caller_extra_str &&
(caller_extra=parse_extra_str(caller_extra_str)) == 0 ) {
LM_ERR("failed to parse caller_extra parameter\n");
return -1;
}
if (callee_extra_str &&
(callee_extra=parse_extra_str(callee_extra_str)) == 0 ) {
LM_ERR("failed to parse callee_extra parameter\n");
return -1;
}
if (group_extra_str &&
(group_extra=parse_extra_str(group_extra_str)) == 0 ) {
LM_ERR("failed to parse group_extra parameter\n");
return -1;
}
if (uri_extra_str &&
(uri_extra=parse_extra_str(uri_extra_str)) == 0 ) {
LM_ERR("failed to parse uri_extra parameter\n");
return -1;
}
SET_STATIC(caller_attrs);
n += extra2attrs(caller_extra, caller_attrs, n);
memset(caller_vals, 0, sizeof(caller_vals));
caller_vals[RV_SIP_CALLER_AVPS].n = "SIP-Caller-AVPs";
INIT_AV(rh, caller_attrs, n, caller_vals, RV_STATIC_MAX, "misc_radius",
-1, -1);
if (caller_service_type != -1) {
caller_vals[RV_SIP_CALLER_AVPS].v = caller_service_type;
}
SET_STATIC(callee_attrs);
n += extra2attrs(callee_extra, callee_attrs, n);
memset(callee_vals, 0, sizeof(callee_vals));
callee_vals[EV_SIP_CALLEE_AVPS].n = "SIP-Callee-AVPs";
INIT_AV(rh, callee_attrs, n, callee_vals, EV_STATIC_MAX, "misc_radius",
-1, -1);
if (callee_service_type != -1) {
callee_vals[EV_SIP_CALLEE_AVPS].v = callee_service_type;
}
SET_STATIC(group_attrs);
n += extra2attrs(group_extra, group_attrs, n);
memset(group_vals, 0, sizeof(group_vals));
group_vals[GV_GROUP_CHECK].n = "Group-Check";
INIT_AV(rh, group_attrs, n, group_vals, RV_STATIC_MAX, "misc_radius",
-1, -1);
if (group_service_type != -1) {
group_vals[GV_GROUP_CHECK].v = group_service_type;
}
SET_STATIC(uri_attrs);
n += extra2attrs(uri_extra, uri_attrs, n);
memset(uri_vals, 0, sizeof(uri_vals));
uri_vals[UV_CALL_CHECK].n = "Call-Check";
INIT_AV(rh, uri_attrs, n, uri_vals, UV_STATIC_MAX, "misc_radius",
-1, -1);
if (uri_service_type != -1) {
uri_vals[UV_CALL_CHECK].v = uri_service_type;
}
return 0;
}
static void destroy(void)
{
if (caller_extra) destroy_extras(caller_extra);
if (callee_extra) destroy_extras(callee_extra);
if (group_extra) destroy_extras(group_extra);
if (uri_extra) destroy_extras(group_extra);
}