From d409373b9d0482bbce312539d02a648cbb1c790a Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Tue, 2 Aug 2022 15:51:58 +0800 Subject: [PATCH] util/qemu-sockets: Enable unix socket support on Windows MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Bin Meng Reviewed-by: Marc-André Lureau Message-Id: <20220802075200.907360-3-bmeng.cn@gmail.com> --- include/sysemu/os-win32.h | 17 +++++++++++++++++ meson.build | 3 +++ util/qemu-sockets.c | 25 ------------------------- 3 files changed, 20 insertions(+), 25 deletions(-) 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 #include +#ifdef HAVE_AFUNIX_H +#include +#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/meson.build b/meson.build index 20fddbd707..169b18a279 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/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: -- 2.11.4.GIT