Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: 1f5848a460
Fetching contributors…

Cannot retrieve contributors at this time

65 lines (53 sloc) 1.436 kb
/*
* Functions for managing transparent proxying with CTTPROXY.
* This file should be compiled only if CTTPROXY is enabled.
*
* Copyright 2000-2008 Willy Tarreau <w@1wt.eu>
*
* This program 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.
*
*/
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <common/compat.h>
#include <common/config.h>
#include <common/time.h>
#include <import/ip_tproxy.h>
/*
* Checks that CTTPROXY is available and in the right version.
* Returns 0 if OK, -1 if wrong version, -2 if not available or other error.
*/
int check_cttproxy_version() {
struct in_tproxy itp1;
int fd, ret;
memset(&itp1, 0, sizeof(itp1));
fd = socket(AF_INET, SOCK_STREAM, 0);
if (fd == -1)
return -2;
itp1.op = TPROXY_VERSION;
itp1.v.version = 0x02000000; /* CTTPROXY version 2.0 expected */
ret = 0;
if (setsockopt(fd, SOL_IP, IP_TPROXY, &itp1, sizeof(itp1)) == -1) {
if (errno == -EINVAL)
ret = -1; /* wrong version */
else
ret = -2; /* not supported or other error */
}
close(fd);
return ret;
}
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/
Jump to Line
Something went wrong with that request. Please try again.