From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:35179) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gnyHO-00071X-Q9 for qemu-devel@nongnu.org; Sun, 27 Jan 2019 23:12:15 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gnyHN-0003Il-Ip for qemu-devel@nongnu.org; Sun, 27 Jan 2019 23:12:14 -0500 Received: from mx1.redhat.com ([209.132.183.28]:59220) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gnyHM-0003Ff-6x for qemu-devel@nongnu.org; Sun, 27 Jan 2019 23:12:12 -0500 From: Jason Wang Date: Mon, 28 Jan 2019 12:11:59 +0800 Message-Id: <20190128041159.28643-1-jasowang@redhat.com> Subject: [Qemu-devel] [PATCH] test-filter-mirror: pass UNIX domain socket through fd List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, jasowang@redhat.com Cc: Peter Maydell , Li Zhijian , Peter Xu , "Dr . David Alan Gilbert" , Zhang Chen , Markus Armbruster , "Daniel P . Berrange" The tests tries to let qemu server mode to process the connection which turns out to be racy after commit 8258292e18c3 ("monitor: Remove "x-oob", offer capability "oob" unconditionally"). This is because the filter may try to mirror the packets before UNIX socket object is ready (connected was set to true) from the view of qemu. In this case the packet will be dropped silently. Fixing this by passing pre-connected socket created by socketpair() to qemu through fd. Cc: Peter Maydell Cc: Li Zhijian Cc: Peter Xu Cc: Dr. David Alan Gilbert Cc: Zhang Chen Cc: Markus Armbruster Cc: Daniel P. Berrange Signed-off-by: Jason Wang --- tests/test-filter-mirror.c | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-) diff --git a/tests/test-filter-mirror.c b/tests/test-filter-mirror.c index 7ab2aed8a0..3c3d1f8961 100644 --- a/tests/test-filter-mirror.c +++ b/tests/test-filter-mirror.c @@ -21,10 +21,9 @@ static void test_mirror(void) { - int send_sock[2], recv_sock; + int send_sock[2], recv_sock[2]; uint32_t ret = 0, len = 0; char send_buf[] = "Hello! filter-mirror~"; - char sock_path[] = "filter-mirror.XXXXXX"; char *recv_buf; uint32_t size = sizeof(send_buf); size = htonl(size); @@ -38,18 +37,15 @@ static void test_mirror(void) ret = socketpair(PF_UNIX, SOCK_STREAM, 0, send_sock); g_assert_cmpint(ret, !=, -1); - ret = mkstemp(sock_path); + ret = socketpair(PF_UNIX, SOCK_STREAM, 0, recv_sock); g_assert_cmpint(ret, !=, -1); qts = qtest_initf( "-netdev socket,id=qtest-bn0,fd=%d " "-device %s,netdev=qtest-bn0,id=qtest-e0 " - "-chardev socket,id=mirror0,path=%s,server,nowait " + "-chardev socket,id=mirror0,fd=%d " "-object filter-mirror,id=qtest-f0,netdev=qtest-bn0,queue=tx,outdev=mirror0 " - , send_sock[1], devstr, sock_path); - - recv_sock = unix_connect(sock_path, NULL); - g_assert_cmpint(recv_sock, !=, -1); + , send_sock[1], devstr, recv_sock[1]); struct iovec iov[] = { { @@ -67,18 +63,16 @@ static void test_mirror(void) g_assert_cmpint(ret, ==, sizeof(send_buf) + sizeof(size)); close(send_sock[0]); - ret = qemu_recv(recv_sock, &len, sizeof(len), 0); + ret = qemu_recv(recv_sock[0], &len, sizeof(len), 0); g_assert_cmpint(ret, ==, sizeof(len)); len = ntohl(len); g_assert_cmpint(len, ==, sizeof(send_buf)); recv_buf = g_malloc(len); - ret = qemu_recv(recv_sock, recv_buf, len, 0); + ret = qemu_recv(recv_sock[0], recv_buf, len, 0); g_assert_cmpstr(recv_buf, ==, send_buf); g_free(recv_buf); - close(recv_sock); - unlink(sock_path); qtest_quit(qts); } -- 2.17.1