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/*
* (C) 2012 by Holger Hans Peter Freyther <zecke@selfish.org>
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#define _GNU_SOURCE
#include <osmocom/core/application.h>
#include <osmocom/gprs/gprs_ns.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <stdlib.h>
#include <dlfcn.h>
int (*real_socket)(int, int, int);
static int GR_SOCKET = -1;
static void resolve_real(void)
{
if (real_socket)
return;
real_socket = dlsym(RTLD_NEXT, "socket");
}
int socket(int domain, int type, int protocol)
{
int fd;
resolve_real();
if (domain != AF_INET || type != SOCK_RAW || protocol != IPPROTO_GRE)
return (*real_socket)(domain, type, protocol);
/* Now call socket with a normal UDP/IP socket and assign to GR_SOCKET */
fd = (*real_socket)(domain, SOCK_DGRAM, IPPROTO_UDP);
GR_SOCKET = fd;
return fd;
}
void bssgp_prim_cb()
{
}
static const struct log_info log_info = {};
int main(int argc, char **argv)
{
int rc;
struct gprs_ns_inst *nsi;
log_init(&log_info, NULL);
nsi = gprs_ns_instantiate(NULL, NULL);
nsi->frgre.enabled = 1;
rc = gprs_ns_frgre_listen(nsi);
printf("Result: %s\n", rc == GR_SOCKET ? "PASSED" : "FAILED");
return rc == GR_SOCKET ? EXIT_SUCCESS : EXIT_FAILURE;
}
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