util/qemu-sockets: Enable unix socket support on Windows

Support for the unix socket has existed both in BSD and Linux for the
longest time, but not on Windows. Since Windows 10 build 17063 [1],
the native support for the unix socket has come to Windows. Starting
this build, two Win32 processes can use the AF_UNIX address family
over Winsock API to communicate with each other.

[1] https://devblogs.microsoft.com/commandline/af_unix-comes-to-windows/

Signed-off-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220802075200.907360-3-bmeng.cn@gmail.com>
This commit is contained in:
Bin Meng 2022-08-02 15:51:58 +08:00 committed by Marc-André Lureau
parent 93fac696d2
commit d409373b9d
3 changed files with 20 additions and 25 deletions

View File

@ -30,6 +30,23 @@
#include <windows.h>
#include <ws2tcpip.h>
#ifdef HAVE_AFUNIX_H
#include <afunix.h>
#else
/*
* Fallback definitions of things we need in afunix.h, if not available from
* the used Windows SDK or MinGW headers.
*/
#define UNIX_PATH_MAX 108
typedef struct sockaddr_un {
ADDRESS_FAMILY sun_family;
char sun_path[UNIX_PATH_MAX];
} SOCKADDR_UN, *PSOCKADDR_UN;
#define SIO_AF_UNIX_GETPEERPID _WSAIOR(IOC_VENDOR, 256)
#endif
#ifdef __cplusplus
extern "C" {
#endif

View File

@ -1890,6 +1890,9 @@ config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
config_host_data.set('HAVE_SYS_DISK_H', cc.has_header('sys/disk.h'))
config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
if targetos == 'windows'
config_host_data.set('HAVE_AFUNIX_H', cc.has_header('afunix.h'))
endif
# has_function
config_host_data.set('CONFIG_ACCEPT4', cc.has_function('accept4'))

View File

@ -880,8 +880,6 @@ static int vsock_parse(VsockSocketAddress *addr, const char *str,
}
#endif /* CONFIG_AF_VSOCK */
#ifndef _WIN32
static bool saddr_is_abstract(UnixSocketAddress *saddr)
{
#ifdef CONFIG_LINUX
@ -1054,25 +1052,6 @@ static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp)
return -1;
}
#else
static int unix_listen_saddr(UnixSocketAddress *saddr,
int num,
Error **errp)
{
error_setg(errp, "unix sockets are not available on windows");
errno = ENOTSUP;
return -1;
}
static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp)
{
error_setg(errp, "unix sockets are not available on windows");
errno = ENOTSUP;
return -1;
}
#endif
/* compatibility wrapper */
int unix_listen(const char *str, Error **errp)
{
@ -1335,7 +1314,6 @@ socket_sockaddr_to_address_inet(struct sockaddr_storage *sa,
}
#ifndef WIN32
static SocketAddress *
socket_sockaddr_to_address_unix(struct sockaddr_storage *sa,
socklen_t salen,
@ -1362,7 +1340,6 @@ socket_sockaddr_to_address_unix(struct sockaddr_storage *sa,
addr->u.q_unix.path = g_strndup(su->sun_path, salen);
return addr;
}
#endif /* WIN32 */
#ifdef CONFIG_AF_VSOCK
static SocketAddress *
@ -1394,10 +1371,8 @@ socket_sockaddr_to_address(struct sockaddr_storage *sa,
case AF_INET6:
return socket_sockaddr_to_address_inet(sa, salen, errp);
#ifndef WIN32
case AF_UNIX:
return socket_sockaddr_to_address_unix(sa, salen, errp);
#endif /* WIN32 */
#ifdef CONFIG_AF_VSOCK
case AF_VSOCK: