From 22e135fca3f2512f43d39efab49067660e365e1b Mon Sep 17 00:00:00 2001 From: Marc-André Lureau Date: Mon, 25 Apr 2022 11:56:42 +0400 Subject: Replace fcntl(O_NONBLOCK) with g_unix_set_fd_nonblocking() Suggested-by: Daniel P. Berrangé Signed-off-by: Marc-André Lureau Reviewed-by: Richard Henderson --- net/tap-bsd.c | 4 ++-- net/tap-linux.c | 2 +- net/tap-solaris.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) (limited to 'net') diff --git a/net/tap-bsd.c b/net/tap-bsd.c index 7e65bd391f..005ce05c6e 100644 --- a/net/tap-bsd.c +++ b/net/tap-bsd.c @@ -98,7 +98,7 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, return -1; } } - fcntl(fd, F_SETFL, O_NONBLOCK); + g_unix_set_fd_nonblocking(fd, true, NULL); return fd; } @@ -189,7 +189,7 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, goto error; } - fcntl(fd, F_SETFL, O_NONBLOCK); + g_unix_set_fd_nonblocking(fd, true, NULL); return fd; error: diff --git a/net/tap-linux.c b/net/tap-linux.c index 3e24d232e7..304ff45071 100644 --- a/net/tap-linux.c +++ b/net/tap-linux.c @@ -113,7 +113,7 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, return -1; } pstrcpy(ifname, ifname_size, ifr.ifr_name); - fcntl(fd, F_SETFL, O_NONBLOCK); + g_unix_set_fd_nonblocking(fd, true, NULL); return fd; } diff --git a/net/tap-solaris.c b/net/tap-solaris.c index 79919785c9..a44f8805c2 100644 --- a/net/tap-solaris.c +++ b/net/tap-solaris.c @@ -198,7 +198,7 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, return -1; } } - fcntl(fd, F_SETFL, O_NONBLOCK); + g_unix_set_fd_nonblocking(fd, true, NULL); return fd; } -- cgit v1.2.3-55-g7522 From a8208626ba8955bad15744398f9befa3b120f5af Mon Sep 17 00:00:00 2001 From: Marc-André Lureau Date: Mon, 25 Apr 2022 17:39:06 +0400 Subject: net: replace qemu_set_nonblock() Those calls are POSIX-specific. Use the dedicated GLib API. (qemu_set_nonblock() is for socket-like) (this is a preliminary patch before renaming qemu_set_nonblock()) Signed-off-by: Marc-André Lureau Reviewed-by: Daniel P. Berrangé --- net/tap.c | 33 +++++++++++++++++++-------------- 1 file changed, 19 insertions(+), 14 deletions(-) (limited to 'net') diff --git a/net/tap.c b/net/tap.c index 6190fa699d..b3ddfd4a74 100644 --- a/net/tap.c +++ b/net/tap.c @@ -619,7 +619,10 @@ int net_init_bridge(const Netdev *netdev, const char *name, return -1; } - qemu_set_nonblock(fd); + if (!g_unix_set_fd_nonblocking(fd, true, NULL)) { + error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + return -1; + } vnet_hdr = tap_probe_vnet_hdr(fd, errp); if (vnet_hdr < 0) { close(fd); @@ -716,8 +719,6 @@ static void net_init_tap_one(const NetdevTapOptions *tap, NetClientState *peer, } if (vhostfdname) { - int ret; - vhostfd = monitor_fd_param(monitor_cur(), vhostfdname, &err); if (vhostfd == -1) { if (tap->has_vhostforce && tap->vhostforce) { @@ -727,9 +728,8 @@ static void net_init_tap_one(const NetdevTapOptions *tap, NetClientState *peer, } return; } - ret = qemu_try_set_nonblock(vhostfd); - if (ret < 0) { - error_setg_errno(errp, -ret, "%s: Can't use file descriptor %d", + if (!g_unix_set_fd_nonblocking(vhostfd, true, NULL)) { + error_setg_errno(errp, errno, "%s: Can't use file descriptor %d", name, fd); return; } @@ -745,7 +745,10 @@ static void net_init_tap_one(const NetdevTapOptions *tap, NetClientState *peer, } return; } - qemu_set_nonblock(vhostfd); + if (!g_unix_set_fd_nonblocking(vhostfd, true, NULL)) { + error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + return; + } } options.opaque = (void *)(uintptr_t)vhostfd; options.nvqs = 2; @@ -832,9 +835,8 @@ int net_init_tap(const Netdev *netdev, const char *name, return -1; } - ret = qemu_try_set_nonblock(fd); - if (ret < 0) { - error_setg_errno(errp, -ret, "%s: Can't use file descriptor %d", + if (!g_unix_set_fd_nonblocking(fd, true, NULL)) { + error_setg_errno(errp, errno, "%s: Can't use file descriptor %d", name, fd); close(fd); return -1; @@ -889,9 +891,9 @@ int net_init_tap(const Netdev *netdev, const char *name, goto free_fail; } - ret = qemu_try_set_nonblock(fd); - if (ret < 0) { - error_setg_errno(errp, -ret, "%s: Can't use file descriptor %d", + ret = g_unix_set_fd_nonblocking(fd, true, NULL); + if (!ret) { + error_setg_errno(errp, errno, "%s: Can't use file descriptor %d", name, fd); goto free_fail; } @@ -946,7 +948,10 @@ free_fail: return -1; } - qemu_set_nonblock(fd); + if (!g_unix_set_fd_nonblocking(fd, true, NULL)) { + error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + return -1; + } vnet_hdr = tap_probe_vnet_hdr(fd, errp); if (vnet_hdr < 0) { close(fd); -- cgit v1.2.3-55-g7522 From ff5927baa7ffb9c97873a071f6a8d85a3584182b Mon Sep 17 00:00:00 2001 From: Marc-André Lureau Date: Mon, 25 Apr 2022 17:33:47 +0400 Subject: util: rename qemu_*block() socket functions The qemu_*block() functions are meant to be be used with sockets (the win32 implementation expects SOCKET) Over time, those functions where used with Win32 SOCKET or file-descriptors interchangeably. But for portability, they must only be used with socket-like file-descriptors. FDs can use g_unix_set_fd_nonblocking() instead. Rename the functions with "socket" in the name to prevent bad usages. This is effectively reverting commit f9e8cacc5557e43 ("oslib-posix: rename socket_set_nonblock() to qemu_set_nonblock()"). Signed-off-by: Marc-André Lureau Reviewed-by: Stefan Hajnoczi --- chardev/char-socket.c | 2 +- contrib/ivshmem-server/ivshmem-server.c | 2 +- hw/hyperv/syndbg.c | 2 +- hw/virtio/vhost-user.c | 2 +- include/qemu/sockets.h | 6 +++--- io/channel-socket.c | 6 +++--- net/l2tpv3.c | 2 +- net/socket.c | 10 +++++----- qga/channel-posix.c | 2 +- tests/unit/socket-helpers.c | 2 +- tests/unit/test-crypto-tlssession.c | 8 ++++---- util/oslib-posix.c | 8 ++++---- util/oslib-win32.c | 8 ++++---- util/vhost-user-server.c | 4 ++-- 14 files changed, 32 insertions(+), 32 deletions(-) (limited to 'net') diff --git a/chardev/char-socket.c b/chardev/char-socket.c index fab2d791d4..dc4e218eeb 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -311,7 +311,7 @@ static ssize_t tcp_chr_recv(Chardev *chr, char *buf, size_t len) } /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */ - qemu_set_block(fd); + qemu_socket_set_block(fd); #ifndef MSG_CMSG_CLOEXEC qemu_set_cloexec(fd); diff --git a/contrib/ivshmem-server/ivshmem-server.c b/contrib/ivshmem-server/ivshmem-server.c index 39a6ffdb5d..2f3c7320a6 100644 --- a/contrib/ivshmem-server/ivshmem-server.c +++ b/contrib/ivshmem-server/ivshmem-server.c @@ -146,7 +146,7 @@ ivshmem_server_handle_new_conn(IvshmemServer *server) return -1; } - qemu_set_nonblock(newfd); + qemu_socket_set_nonblock(newfd); IVSHMEM_SERVER_DEBUG(server, "accept()=%d\n", newfd); /* allocate new structure for this peer */ diff --git a/hw/hyperv/syndbg.c b/hw/hyperv/syndbg.c index ebb8a29f78..16d04cfdc6 100644 --- a/hw/hyperv/syndbg.c +++ b/hw/hyperv/syndbg.c @@ -334,7 +334,7 @@ static void hv_syndbg_realize(DeviceState *dev, Error **errp) return; } - qemu_set_nonblock(syndbg->socket); + qemu_socket_set_nonblock(syndbg->socket); syndbg->servaddr.sin_port = htons(syndbg->host_port); syndbg->servaddr.sin_family = AF_INET; diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c index 9c4f84f35f..a80315ecfc 100644 --- a/hw/virtio/vhost-user.c +++ b/hw/virtio/vhost-user.c @@ -1826,7 +1826,7 @@ static int vhost_user_postcopy_advise(struct vhost_dev *dev, Error **errp) error_setg(errp, "%s: Failed to get ufd", __func__); return -EIO; } - qemu_set_nonblock(ufd); + qemu_socket_set_nonblock(ufd); /* register ufd with userfault thread */ u->postcopy_fd.fd = ufd; diff --git a/include/qemu/sockets.h b/include/qemu/sockets.h index 0c34bf2398..038faa157f 100644 --- a/include/qemu/sockets.h +++ b/include/qemu/sockets.h @@ -17,9 +17,9 @@ int qemu_socket(int domain, int type, int protocol); int qemu_accept(int s, struct sockaddr *addr, socklen_t *addrlen); int socket_set_cork(int fd, int v); int socket_set_nodelay(int fd); -void qemu_set_block(int fd); -int qemu_try_set_nonblock(int fd); -void qemu_set_nonblock(int fd); +void qemu_socket_set_block(int fd); +int qemu_socket_try_set_nonblock(int fd); +void qemu_socket_set_nonblock(int fd); int socket_set_fast_reuse(int fd); #ifdef WIN32 diff --git a/io/channel-socket.c b/io/channel-socket.c index 9f5ddf68b6..e531d7bd2a 100644 --- a/io/channel-socket.c +++ b/io/channel-socket.c @@ -460,7 +460,7 @@ static void qio_channel_socket_copy_fds(struct msghdr *msg, } /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */ - qemu_set_block(fd); + qemu_socket_set_block(fd); #ifndef MSG_CMSG_CLOEXEC qemu_set_cloexec(fd); @@ -665,9 +665,9 @@ qio_channel_socket_set_blocking(QIOChannel *ioc, QIOChannelSocket *sioc = QIO_CHANNEL_SOCKET(ioc); if (enabled) { - qemu_set_block(sioc->fd); + qemu_socket_set_block(sioc->fd); } else { - qemu_set_nonblock(sioc->fd); + qemu_socket_set_nonblock(sioc->fd); } return 0; } diff --git a/net/l2tpv3.c b/net/l2tpv3.c index b8faa8796c..af373e5c30 100644 --- a/net/l2tpv3.c +++ b/net/l2tpv3.c @@ -716,7 +716,7 @@ int net_init_l2tpv3(const Netdev *netdev, s->vec = g_new(struct iovec, MAX_L2TPV3_IOVCNT); s->header_buf = g_malloc(s->header_size); - qemu_set_nonblock(fd); + qemu_socket_set_nonblock(fd); s->fd = fd; s->counter = 0; diff --git a/net/socket.c b/net/socket.c index ea5220a2eb..bfd8596250 100644 --- a/net/socket.c +++ b/net/socket.c @@ -297,7 +297,7 @@ static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, } } - qemu_set_nonblock(fd); + qemu_socket_set_nonblock(fd); return fd; fail: if (fd >= 0) @@ -522,7 +522,7 @@ static int net_socket_listen_init(NetClientState *peer, error_setg_errno(errp, errno, "can't create stream socket"); return -1; } - qemu_set_nonblock(fd); + qemu_socket_set_nonblock(fd); socket_set_fast_reuse(fd); @@ -570,7 +570,7 @@ static int net_socket_connect_init(NetClientState *peer, error_setg_errno(errp, errno, "can't create stream socket"); return -1; } - qemu_set_nonblock(fd); + qemu_socket_set_nonblock(fd); connected = 0; for(;;) { @@ -688,7 +688,7 @@ static int net_socket_udp_init(NetClientState *peer, closesocket(fd); return -1; } - qemu_set_nonblock(fd); + qemu_socket_set_nonblock(fd); s = net_socket_fd_init(peer, model, name, fd, 0, NULL, errp); if (!s) { @@ -730,7 +730,7 @@ int net_init_socket(const Netdev *netdev, const char *name, if (fd == -1) { return -1; } - ret = qemu_try_set_nonblock(fd); + ret = qemu_socket_try_set_nonblock(fd); if (ret < 0) { error_setg_errno(errp, -ret, "%s: Can't use file descriptor %d", name, fd); diff --git a/qga/channel-posix.c b/qga/channel-posix.c index 0373975360..a996858e24 100644 --- a/qga/channel-posix.c +++ b/qga/channel-posix.c @@ -34,7 +34,7 @@ static gboolean ga_channel_listen_accept(GIOChannel *channel, g_warning("error converting fd to gsocket: %s", strerror(errno)); goto out; } - qemu_set_nonblock(client_fd); + qemu_socket_set_nonblock(client_fd); ret = ga_channel_client_add(c, client_fd); if (ret) { g_warning("error setting up connection"); diff --git a/tests/unit/socket-helpers.c b/tests/unit/socket-helpers.c index 0a9e090a68..5af4de513b 100644 --- a/tests/unit/socket-helpers.c +++ b/tests/unit/socket-helpers.c @@ -88,7 +88,7 @@ static int socket_can_bind_connect(const char *hostname, int family) goto cleanup; } - qemu_set_nonblock(cfd); + qemu_socket_set_nonblock(cfd); if (connect(cfd, (struct sockaddr *)&ss, sslen) < 0) { if (errno == EINPROGRESS) { check_soerr = true; diff --git a/tests/unit/test-crypto-tlssession.c b/tests/unit/test-crypto-tlssession.c index 5f0da9192c..a266dc32da 100644 --- a/tests/unit/test-crypto-tlssession.c +++ b/tests/unit/test-crypto-tlssession.c @@ -90,8 +90,8 @@ static void test_crypto_tls_session_psk(void) * thread, so we need these non-blocking to avoid deadlock * of ourselves */ - qemu_set_nonblock(channel[0]); - qemu_set_nonblock(channel[1]); + qemu_socket_set_nonblock(channel[0]); + qemu_socket_set_nonblock(channel[1]); clientCreds = test_tls_creds_psk_create( QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT, @@ -244,8 +244,8 @@ static void test_crypto_tls_session_x509(const void *opaque) * thread, so we need these non-blocking to avoid deadlock * of ourselves */ - qemu_set_nonblock(channel[0]); - qemu_set_nonblock(channel[1]); + qemu_socket_set_nonblock(channel[0]); + qemu_socket_set_nonblock(channel[1]); #define CLIENT_CERT_DIR "tests/test-crypto-tlssession-client/" #define SERVER_CERT_DIR "tests/test-crypto-tlssession-server/" diff --git a/util/oslib-posix.c b/util/oslib-posix.c index 72f25e599d..477990f39b 100644 --- a/util/oslib-posix.c +++ b/util/oslib-posix.c @@ -224,20 +224,20 @@ void qemu_anon_ram_free(void *ptr, size_t size) qemu_ram_munmap(-1, ptr, size); } -void qemu_set_block(int fd) +void qemu_socket_set_block(int fd) { g_unix_set_fd_nonblocking(fd, false, NULL); } -int qemu_try_set_nonblock(int fd) +int qemu_socket_try_set_nonblock(int fd) { return g_unix_set_fd_nonblocking(fd, true, NULL) ? 0 : -errno; } -void qemu_set_nonblock(int fd) +void qemu_socket_set_nonblock(int fd) { int f; - f = qemu_try_set_nonblock(fd); + f = qemu_socket_try_set_nonblock(fd); assert(f == 0); } diff --git a/util/oslib-win32.c b/util/oslib-win32.c index 9c1e8121fd..dafef4f157 100644 --- a/util/oslib-win32.c +++ b/util/oslib-win32.c @@ -184,14 +184,14 @@ static int socket_error(void) } } -void qemu_set_block(int fd) +void qemu_socket_set_block(int fd) { unsigned long opt = 0; WSAEventSelect(fd, NULL, 0); ioctlsocket(fd, FIONBIO, &opt); } -int qemu_try_set_nonblock(int fd) +int qemu_socket_try_set_nonblock(int fd) { unsigned long opt = 1; if (ioctlsocket(fd, FIONBIO, &opt) != NO_ERROR) { @@ -200,9 +200,9 @@ int qemu_try_set_nonblock(int fd) return 0; } -void qemu_set_nonblock(int fd) +void qemu_socket_set_nonblock(int fd) { - (void)qemu_try_set_nonblock(fd); + (void)qemu_socket_try_set_nonblock(fd); } int socket_set_fast_reuse(int fd) diff --git a/util/vhost-user-server.c b/util/vhost-user-server.c index f66fbba710..232984ace6 100644 --- a/util/vhost-user-server.c +++ b/util/vhost-user-server.c @@ -65,7 +65,7 @@ static void vmsg_unblock_fds(VhostUserMsg *vmsg) { int i; for (i = 0; i < vmsg->fd_num; i++) { - qemu_set_nonblock(vmsg->fds[i]); + qemu_socket_set_nonblock(vmsg->fds[i]); } } @@ -270,7 +270,7 @@ set_watch(VuDev *vu_dev, int fd, int vu_evt, vu_fd_watch->fd = fd; vu_fd_watch->cb = cb; - qemu_set_nonblock(fd); + qemu_socket_set_nonblock(fd); aio_set_fd_handler(server->ioc->ctx, fd, true, kick_handler, NULL, NULL, NULL, vu_fd_watch); vu_fd_watch->vu_dev = vu_dev; -- cgit v1.2.3-55-g7522