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| author | Marc-André Lureau <marcandre.lureau@redhat.com> | 2016-06-16 21:28:52 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-06-29 16:49:41 +0200 |
| commit | 74b6ce43e3aacbb101018407196fc963e2c39fea (patch) | |
| tree | 84a5082d6ce8b1c32be1f0a26deb47ce3510181e | |
| parent | 3fa27a9a1e20e8fb2bf4358d6873177d5d5c049a (diff) | |
| download | focaccia-qemu-74b6ce43e3aacbb101018407196fc963e2c39fea.tar.gz focaccia-qemu-74b6ce43e3aacbb101018407196fc963e2c39fea.zip | |
socket: unlink unix socket on remove
qemu leaves unix socket files behind when removing a listening chardev or leaving. qemu could clean that up, even if doing so isn't race-free. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1347077 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <1466105332-10285-4-git-send-email-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | include/qemu/sockets.h | 1 | ||||
| -rw-r--r-- | io/channel-socket.c | 10 | ||||
| -rw-r--r-- | tests/test-io-channel-socket.c | 2 | ||||
| -rw-r--r-- | util/qemu-sockets.c | 18 |
4 files changed, 30 insertions, 1 deletions
diff --git a/include/qemu/sockets.h b/include/qemu/sockets.h index 1bd92180f3..5dd2648169 100644 --- a/include/qemu/sockets.h +++ b/include/qemu/sockets.h @@ -51,6 +51,7 @@ SocketAddress *socket_parse(const char *str, Error **errp); int socket_connect(SocketAddress *addr, Error **errp, NonBlockingConnectHandler *callback, void *opaque); int socket_listen(SocketAddress *addr, Error **errp); +void socket_listen_cleanup(int fd, Error **errp); int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp); /* Old, ipv4 only bits. Don't use for new code. */ diff --git a/io/channel-socket.c b/io/channel-socket.c index 1cd58487b0..6ec87f8cdb 100644 --- a/io/channel-socket.c +++ b/io/channel-socket.c @@ -400,7 +400,17 @@ static void qio_channel_socket_init(Object *obj) static void qio_channel_socket_finalize(Object *obj) { QIOChannelSocket *ioc = QIO_CHANNEL_SOCKET(obj); + if (ioc->fd != -1) { + if (QIO_CHANNEL(ioc)->features & QIO_CHANNEL_FEATURE_LISTEN) { + Error *err = NULL; + + socket_listen_cleanup(ioc->fd, &err); + if (err) { + error_report_err(err); + err = NULL; + } + } #ifdef WIN32 WSAEventSelect(ioc->fd, NULL, 0); #endif diff --git a/tests/test-io-channel-socket.c b/tests/test-io-channel-socket.c index 855306b8dd..f73e063d7d 100644 --- a/tests/test-io-channel-socket.c +++ b/tests/test-io-channel-socket.c @@ -383,7 +383,7 @@ static void test_io_channel_unix(bool async) qapi_free_SocketAddress(listen_addr); qapi_free_SocketAddress(connect_addr); - unlink(TEST_SOCKET); + g_assert(g_file_test(TEST_SOCKET, G_FILE_TEST_EXISTS) == FALSE); } diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c index 0d6cd1f4ef..5d03695d10 100644 --- a/util/qemu-sockets.c +++ b/util/qemu-sockets.c @@ -997,6 +997,24 @@ int socket_listen(SocketAddress *addr, Error **errp) return fd; } +void socket_listen_cleanup(int fd, Error **errp) +{ + SocketAddress *addr; + + addr = socket_local_address(fd, errp); + + if (addr->type == SOCKET_ADDRESS_KIND_UNIX + && addr->u.q_unix.data->path) { + if (unlink(addr->u.q_unix.data->path) < 0 && errno != ENOENT) { + error_setg_errno(errp, errno, + "Failed to unlink socket %s", + addr->u.q_unix.data->path); + } + } + + g_free(addr); +} + int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp) { int fd; |