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/* checks.c v 0.1 2003/1/20
*
* Radius based checks
*
* Copyright (C) 2002-2003 Juha Heinanen
*
* This file is part of openser, a free SIP server.
*
* openser 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
*
* openser 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
*
* History:
* -------
* 2003-03-11: Code cleanup (janakj)
*/
#include <string.h>
#include "../../mem/mem.h"
#include "../../parser/parse_uri.h"
#include "../../dprint.h"
#include "../../usr_avp.h"
#include "../../ut.h"
#include "../../modules/acc/dict.h"
#include "checks.h"
#include "urirad_mod.h"
#include <radiusclient-ng.h>
/*
* Split name:value into string name and string value
*/
static void attr_name_value(VALUE_PAIR* vp, str* name, str* value)
{
int i;
for (i = 0; i < vp->lvalue; i++) {
if (vp->strvalue[i] == ':') {
name->s = vp->strvalue;
name->len = i;
if (i == (vp->lvalue - 1)) {
value->s = (char*)0;
value->len = 0;
} else {
value->s = vp->strvalue + i + 1;
value->len = vp->lvalue - i - 1;
}
return;
}
}
name->len = value->len = 0;
name->s = value->s = (char*)0;
}
/*
* Generate AVPs from the database result
*/
static int generate_avps(VALUE_PAIR* received)
{
str name_str, val_str;
int_str name, val;
VALUE_PAIR *vp;
vp = received;
while ((vp = rc_avpair_get(vp, attrs[A_SIP_AVP].v, 0))) {
attr_name_value(vp, &name_str, &val_str);
name.s = name_str;
val.s = val_str;
if (add_avp(AVP_NAME_STR | AVP_VAL_STR, name, val) < 0) {
LOG(L_ERR, "generate_avps: Unable to create a new AVP\n");
} else {
DBG("generate_avps: AVP '%.*s'='%.*s' has been added\n",
name_str.len, ZSW(name_str.s),
val_str.len, ZSW(val_str.s));
}
vp = vp->next;
}
return 0;
}
/*
* Check from Radius if request URI belongs to a local user.
* User-Name is user@host of request Uri and Service-Type is Call-Check.
*/
int radius_does_uri_exist(struct sip_msg* _m, char* _s1, char* _s2)
{
static char msg[4096];
VALUE_PAIR *send, *received;
UINT4 service;
char* at, *uri;
send = received = 0;
if (parse_sip_msg_uri(_m) < 0) {
LOG(L_ERR, "radius_does_uri_exist(): Error while parsing URI\n");
return -1;
}
uri = (char*)pkg_malloc(_m->parsed_uri.user.len + _m->parsed_uri.host.len + 2);
if (!uri) {
LOG(L_ERR, "radius_does_uri_exist(): No memory left\n");
return -2;
}
at = uri;
memcpy(at, _m->parsed_uri.user.s, _m->parsed_uri.user.len);
at += _m->parsed_uri.user.len;
*at = '@';
at++;
memcpy(at , _m->parsed_uri.host.s, _m->parsed_uri.host.len);
at += _m->parsed_uri.host.len;
*at = '\0';
if (!rc_avpair_add(rh, &send, attrs[A_USER_NAME].v, uri, -1, 0)) {
LOG(L_ERR, "radius_does_uri_exist(): Error adding User-Name\n");
rc_avpair_free(send);
pkg_free(uri);
return -3;
}
service = vals[V_CALL_CHECK].v;
if (!rc_avpair_add(rh, &send, attrs[A_SERVICE_TYPE].v, &service, -1, 0)) {
LOG(L_ERR, "radius_does_uri_exist(): Error adding service type\n");
rc_avpair_free(send);
pkg_free(uri);
return -4;
}
if (rc_auth(rh, 0, send, &received, msg) == OK_RC) {
DBG("radius_does_uri_exist(): Success\n");
rc_avpair_free(send);
generate_avps(received);
rc_avpair_free(received);
pkg_free(uri);
return 1;
} else {
DBG("radius_does_uri_exist(): Failure\n");
rc_avpair_free(send);
rc_avpair_free(received);
pkg_free(uri);
return -5;
}
}
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