mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-23 21:34:54 +03:00
109 lines
2.6 KiB
C
109 lines
2.6 KiB
C
|
/*
|
||
|
* Copyright (C) 2013-2014 Red Hat, Inc.
|
||
|
*
|
||
|
* This library is free software; you can redistribute it and/or
|
||
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
* License as published by the Free Software Foundation; either
|
||
|
* version 2.1 of the License, or (at your option) any later version.
|
||
|
*
|
||
|
* This library 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
|
||
|
* Lesser General Public License for more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
* License along with this library. If not, see
|
||
|
* <http://www.gnu.org/licenses/>.
|
||
|
*
|
||
|
* Author: Daniel P. Berrange <berrange@redhat.com>
|
||
|
*/
|
||
|
|
||
|
#include <config.h>
|
||
|
#include <stdlib.h>
|
||
|
|
||
|
#if HAVE_DLFCN_H
|
||
|
# include <dlfcn.h>
|
||
|
#endif
|
||
|
|
||
|
#if defined(RTLD_NEXT)
|
||
|
# include "internal.h"
|
||
|
# include <sys/socket.h>
|
||
|
# include <errno.h>
|
||
|
# include <arpa/inet.h>
|
||
|
# include <netinet/in.h>
|
||
|
# include <stdio.h>
|
||
|
# include <unistd.h>
|
||
|
|
||
|
static bool host_has_ipv6;
|
||
|
static int (*realsocket)(int domain, int type, int protocol);
|
||
|
|
||
|
static void init_syms(void)
|
||
|
{
|
||
|
int fd;
|
||
|
|
||
|
if (realsocket)
|
||
|
return;
|
||
|
|
||
|
realsocket = dlsym(RTLD_NEXT, "socket");
|
||
|
|
||
|
if (!realsocket) {
|
||
|
fprintf(stderr, "Unable to find 'socket' symbol\n");
|
||
|
abort();
|
||
|
}
|
||
|
|
||
|
fd = realsocket(AF_INET6, SOCK_STREAM, 0);
|
||
|
if (fd < 0)
|
||
|
return;
|
||
|
|
||
|
host_has_ipv6 = true;
|
||
|
close(fd);
|
||
|
}
|
||
|
|
||
|
int socket(int domain,
|
||
|
int type,
|
||
|
int protocol)
|
||
|
{
|
||
|
init_syms();
|
||
|
|
||
|
if (getenv("LIBVIRT_TEST_IPV4ONLY") && domain == AF_INET6) {
|
||
|
errno = EAFNOSUPPORT;
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
return realsocket(domain, type, protocol);
|
||
|
}
|
||
|
|
||
|
int bind(int sockfd ATTRIBUTE_UNUSED,
|
||
|
const struct sockaddr *addr,
|
||
|
socklen_t addrlen ATTRIBUTE_UNUSED)
|
||
|
{
|
||
|
struct sockaddr_in saddr;
|
||
|
|
||
|
memcpy(&saddr, addr, sizeof(saddr));
|
||
|
|
||
|
if (host_has_ipv6 && !getenv("LIBVIRT_TEST_IPV4ONLY")) {
|
||
|
if (saddr.sin_port == htons(5900) ||
|
||
|
(saddr.sin_family == AF_INET &&
|
||
|
saddr.sin_port == htons(5904)) ||
|
||
|
(saddr.sin_family == AF_INET6 &&
|
||
|
(saddr.sin_port == htons(5905) ||
|
||
|
saddr.sin_port == htons(5906)))) {
|
||
|
errno = EADDRINUSE;
|
||
|
return -1;
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
if (saddr.sin_port == htons(5900) ||
|
||
|
saddr.sin_port == htons(5904) ||
|
||
|
saddr.sin_port == htons(5905) ||
|
||
|
saddr.sin_port == htons(5906)) {
|
||
|
errno = EADDRINUSE;
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
#endif /* ! defined(RTLD_NEXT) */
|