From: Bin Meng <bin.m...@windriver.com> 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.ch...@windriver.com> Signed-off-by: Bin Meng <bin.m...@windriver.com> --- Changes in v4: - instead of introducing CONFIG_AF_UNIX, add fallback afunix.h header in os-win32.h, and compile the AF_UNIX stuff for all Windows hosts Changes in v3: - drop the run-time check afunix_available() Changes in v2: - move #include <afunix.h> to os-win32.h - define WIN_BUILD_AF_UNIX only when CONFIG_WIN32 meson.build | 3 +++ include/sysemu/os-win32.h | 17 +++++++++++++++++ util/qemu-sockets.c | 25 ------------------------- 3 files changed, 20 insertions(+), 25 deletions(-) diff --git a/meson.build b/meson.build index 294e9a8f32..6749223f1a 100644 --- a/meson.build +++ b/meson.build @@ -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')) diff --git a/include/sysemu/os-win32.h b/include/sysemu/os-win32.h index edc3b38a57..5b38c7bd04 100644 --- a/include/sysemu/os-win32.h +++ b/include/sysemu/os-win32.h @@ -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 diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c index 0e2298278f..83f4bd6fd2 100644 --- a/util/qemu-sockets.c +++ b/util/qemu-sockets.c @@ -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: -- 2.34.1
