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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1767513273; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hYi2AdeJkUKmYKXNm64FjtkWNNMfAqqSRdIJknViB7Q=; b=XZe9AFV7CbeR3s5I+8FgkEOk7C8hbKmjf8xThbg7+ga8uWd/iTweIO21SXdL06VfoJpfmh or50R4NFCp37ssvNQ+2gKJsIlvjWjBSEMInIbQEooOZTiavGDFEFI8ha1I7J+ZaSB5X+0d QoL0XcqjQk7Ep7aRWoXrHJ2kPd76VRY= X-MC-Unique: mWSuyD5RPpa7mxX-oXFjDA-1 X-Mimecast-MFC-AGG-ID: mWSuyD5RPpa7mxX-oXFjDA_1767513268 From: Jason Wang To: zhangckid@gmail.com, lizhijian@fujitsu.com, jasowang@redhat.com, qemu-devel@nongnu.org Cc: lulu@redhat.com Subject: [PATCH 3/3] tests/qtest: Add test for filter-redirector rx event opened Date: Sun, 4 Jan 2026 15:54:12 +0800 Message-ID: <20260104075412.1262-4-jasowang@redhat.com> In-Reply-To: <20260104075412.1262-1-jasowang@redhat.com> References: <20260104075412.1262-1-jasowang@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" Add a new test case 'test_redirector_rx_event_opened' to verify the handling of the CHR_EVENT_OPENED event in filter-redirector. The test simulates a scenario where the backend character device (socket) is disconnected and then reconnected. It works by: 1. Connecting to the redirector's socket (triggers CHR_EVENT_OPENED). 2. Sending a packet to verify initial connectivity. 3. Disconnecting (triggers CHR_EVENT_CLOSED). 4. Reconnecting (triggers CHR_EVENT_OPENED again). 5. Sending another packet to verify that the redirector correctly re-registers its handlers and resumes passing traffic. This ensures that the filter-redirector can recover and function correctly after a backend reconnection. Signed-off-by: Jason Wang Reviewed-by: Zhang Chen --- tests/qtest/test-filter-redirector.c | 96 ++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) diff --git a/tests/qtest/test-filter-redirector.c b/tests/qtest/test-filter= -redirector.c index da0c126314..5540c232c0 100644 --- a/tests/qtest/test-filter-redirector.c +++ b/tests/qtest/test-filter-redirector.c @@ -385,6 +385,100 @@ static void test_redirector_init_status_off(void) qtest_quit(qts); } =20 +static void test_redirector_rx_event_opened(void) +{ + int backend_sock[2], send_sock; + uint32_t ret =3D 0, len =3D 0; + char send_buf[] =3D "Hello!!"; + char send_buf2[] =3D "Hello2!!"; + char sock_path0[] =3D "filter-redirector0.XXXXXX"; + char *recv_buf; + uint32_t size =3D sizeof(send_buf); + uint32_t size2 =3D sizeof(send_buf2); + size =3D htonl(size); + size2 =3D htonl(size2); + QTestState *qts; + + ret =3D socketpair(PF_UNIX, SOCK_STREAM, 0, backend_sock); + g_assert_cmpint(ret, !=3D, -1); + + ret =3D mkstemp(sock_path0); + g_assert_cmpint(ret, !=3D, -1); + + qts =3D qtest_initf( + "-nic socket,id=3Dqtest-bn0,fd=3D%d " + "-chardev socket,id=3Dredirector0,path=3D%s,server=3Don,wait=3Doff= " + "-object filter-redirector,id=3Dqtest-f0,netdev=3Dqtest-bn0," + "queue=3Drx,indev=3Dredirector0 ", + backend_sock[1], sock_path0); + + struct iovec iov[] =3D { + { + .iov_base =3D &size, + .iov_len =3D sizeof(size), + }, { + .iov_base =3D send_buf, + .iov_len =3D sizeof(send_buf), + }, + }; + + struct iovec iov2[] =3D { + { + .iov_base =3D &size2, + .iov_len =3D sizeof(size2), + }, { + .iov_base =3D send_buf2, + .iov_len =3D sizeof(send_buf2), + }, + }; + + /* First connection */ + send_sock =3D unix_connect(sock_path0, NULL); + g_assert_cmpint(send_sock, !=3D, -1); + qtest_qmp_assert_success(qts, "{ 'execute' : 'query-status'}"); + + ret =3D iov_send(send_sock, iov, 2, 0, sizeof(size) + sizeof(send_buf)= ); + g_assert_cmpint(ret, =3D=3D, sizeof(send_buf) + sizeof(size)); + + ret =3D recv(backend_sock[0], &len, sizeof(len), 0); + g_assert_cmpint(ret, =3D=3D, sizeof(len)); + len =3D ntohl(len); + g_assert_cmpint(len, =3D=3D, sizeof(send_buf)); + recv_buf =3D g_malloc(len); + ret =3D recv(backend_sock[0], recv_buf, len, 0); + g_assert_cmpint(ret, =3D=3D, len); + g_assert_cmpstr(recv_buf, =3D=3D, send_buf); + g_free(recv_buf); + + close(send_sock); + + /* Verify disconnection handling if needed, but mainly we want to test= Reconnection */ + qtest_qmp_assert_success(qts, "{ 'execute' : 'query-status'}"); + + /* Second connection */ + send_sock =3D unix_connect(sock_path0, NULL); + g_assert_cmpint(send_sock, !=3D, -1); + qtest_qmp_assert_success(qts, "{ 'execute' : 'query-status'}"); + + ret =3D iov_send(send_sock, iov2, 2, 0, sizeof(size2) + sizeof(send_bu= f2)); + g_assert_cmpint(ret, =3D=3D, sizeof(send_buf2) + sizeof(size2)); + + ret =3D recv(backend_sock[0], &len, sizeof(len), 0); + g_assert_cmpint(ret, =3D=3D, sizeof(len)); + len =3D ntohl(len); + g_assert_cmpint(len, =3D=3D, sizeof(send_buf2)); + recv_buf =3D g_malloc(len); + ret =3D recv(backend_sock[0], recv_buf, len, 0); + g_assert_cmpint(ret, =3D=3D, len); + g_assert_cmpstr(recv_buf, =3D=3D, send_buf2); + g_free(recv_buf); + + close(send_sock); + unlink(sock_path0); + qtest_quit(qts); + close(backend_sock[0]); +} + int main(int argc, char **argv) { g_test_init(&argc, &argv, NULL); @@ -393,5 +487,7 @@ int main(int argc, char **argv) qtest_add_func("/netfilter/redirector_status", test_redirector_status); qtest_add_func("/netfilter/redirector_init_status_off", test_redirector_init_status_off); + qtest_add_func("/netfilter/redirector_rx_event_opened", + test_redirector_rx_event_opened); return g_test_run(); } --=20 2.34.1