9b589ffb12
The test-io-channel-socket.c file has some useful helper functions for checking if a specific IP protocol is available. Other tests need to perform similar kinds of checks to avoid running tests that will fail due to missing IP protocols. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
101 lines
2.2 KiB
C
101 lines
2.2 KiB
C
/*
|
|
* Helper functions for tests using sockets
|
|
*
|
|
* Copyright 2015-2018 Red Hat, Inc.
|
|
*
|
|
* 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 or
|
|
* (at your option) version 3 of the License.
|
|
*
|
|
* 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 General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qemu-common.h"
|
|
#include "qemu/sockets.h"
|
|
#include "socket-helpers.h"
|
|
|
|
#ifndef AI_ADDRCONFIG
|
|
# define AI_ADDRCONFIG 0
|
|
#endif
|
|
#ifndef EAI_ADDRFAMILY
|
|
# define EAI_ADDRFAMILY 0
|
|
#endif
|
|
|
|
int socket_can_bind(const char *hostname)
|
|
{
|
|
int fd = -1;
|
|
struct addrinfo ai, *res = NULL;
|
|
int rc;
|
|
int ret = -1;
|
|
|
|
memset(&ai, 0, sizeof(ai));
|
|
ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
|
|
ai.ai_family = AF_UNSPEC;
|
|
ai.ai_socktype = SOCK_STREAM;
|
|
|
|
/* lookup */
|
|
rc = getaddrinfo(hostname, NULL, &ai, &res);
|
|
if (rc != 0) {
|
|
if (rc == EAI_ADDRFAMILY ||
|
|
rc == EAI_FAMILY) {
|
|
errno = EADDRNOTAVAIL;
|
|
} else {
|
|
errno = EINVAL;
|
|
}
|
|
goto cleanup;
|
|
}
|
|
|
|
fd = qemu_socket(res->ai_family, res->ai_socktype, res->ai_protocol);
|
|
if (fd < 0) {
|
|
goto cleanup;
|
|
}
|
|
|
|
if (bind(fd, res->ai_addr, res->ai_addrlen) < 0) {
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
if (fd != -1) {
|
|
close(fd);
|
|
}
|
|
if (res) {
|
|
freeaddrinfo(res);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
int socket_check_protocol_support(bool *has_ipv4, bool *has_ipv6)
|
|
{
|
|
*has_ipv4 = *has_ipv6 = false;
|
|
|
|
if (socket_can_bind("127.0.0.1") < 0) {
|
|
if (errno != EADDRNOTAVAIL) {
|
|
return -1;
|
|
}
|
|
} else {
|
|
*has_ipv4 = true;
|
|
}
|
|
|
|
if (socket_can_bind("::1") < 0) {
|
|
if (errno != EADDRNOTAVAIL) {
|
|
return -1;
|
|
}
|
|
} else {
|
|
*has_ipv6 = true;
|
|
}
|
|
|
|
return 0;
|
|
}
|