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[Qemu-devel] [PATCH V7 2/2] tests/test-filter-redirector: Add unit test
|
From: |
Zhang Chen |
|
Subject: |
[Qemu-devel] [PATCH V7 2/2] tests/test-filter-redirector: Add unit test for filter-redirector |
|
Date: |
Thu, 17 Mar 2016 16:16:27 +0800 |
In this unit test,we will test the filter redirector function.
Case 1, tx traffic flow:
qemu side | test side
|
+---------+ | +-------+
| backend <---------------+ sock0 |
+----+----+ | +-------+
| |
+----v----+ +-------+ |
| rd0 +->+chardev| |
+---------+ +---+---+ |
| |
+---------+ | |
| rd1 <------+ |
+----+----+ |
| |
+----v----+ | +-------+
| rd2 +--------------->sock1 |
+---------+ | +-------+
+
a. we(sock0) inject packet to qemu socket backend
b. backend pass packet to filter redirector0(rd0)
c. rd0 redirect packet to out_dev(chardev) which is connected with
filter redirector1's(rd1) in_dev
d. rd1 read this packet from in_dev, and pass to next filter redirector2(rd2)
e. rd2 redirect packet to rd2's out_dev which is connected with an opened
socketed(sock1)
f. we read packet from sock1 and compare to what we inject
Start qemu with:
"-netdev socket,id=qtest-bn0,fd=%d "
"-device rtl8139,netdev=qtest-bn0,id=qtest-e0 "
"-chardev socket,id=redirector0,path=%s,server,nowait "
"-chardev socket,id=redirector1,path=%s,server,nowait "
"-chardev socket,id=redirector2,path=%s,nowait "
"-object filter-redirector,id=qtest-f0,netdev=qtest-bn0,"
"queue=tx,outdev=redirector0 "
"-object filter-redirector,id=qtest-f1,netdev=qtest-bn0,"
"queue=tx,indev=redirector2 "
"-object filter-redirector,id=qtest-f2,netdev=qtest-bn0,"
"queue=tx,outdev=redirector1 "
--------------------------------------
Case 2, rx traffic flow
qemu side | test side
|
+---------+ | +-------+
| backend +---------------> sock1 |
+----^----+ | +-------+
| |
+----+----+ +-------+ |
| rd0 +<-+chardev| |
+---------+ +---+---+ |
^ |
+---------+ | |
| rd1 +------+ |
+----^----+ |
| |
+----+----+ | +-------+
| rd2 <---------------+sock0 |
+---------+ | +-------+
a. we(sock0) insert packet to filter redirector2(rd2)
b. rd2 pass packet to filter redirector1(rd1)
c. rd1 redirect packet to out_dev(chardev) which is connected with
filter redirector0's(rd0) in_dev
d. rd0 read this packet from in_dev, and pass ti to qemu backend which is
connected with an opened socketed(sock1)
e. we read packet from sock1 and compare to what we inject
Start qemu with:
"-netdev socket,id=qtest-bn0,fd=%d "
"-device rtl8139,netdev=qtest-bn0,id=qtest-e0 "
"-chardev socket,id=redirector0,path=%s,server,nowait "
"-chardev socket,id=redirector1,path=%s,server,nowait "
"-chardev socket,id=redirector2,path=%s,nowait "
"-object filter-redirector,id=qtest-f0,netdev=qtest-bn0,"
"queue=rx,outdev=redirector0 "
"-object filter-redirector,id=qtest-f1,netdev=qtest-bn0,"
"queue=rx,indev=redirector2 "
"-object filter-redirector,id=qtest-f2,netdev=qtest-bn0,"
"queue=rx,outdev=redirector1 "
Signed-off-by: Zhang Chen <address@hidden>
Signed-off-by: Wen Congyang <address@hidden>
Signed-off-by: Li Zhijian <address@hidden>
---
tests/.gitignore | 1 +
tests/Makefile | 2 +
tests/test-filter-redirector.c | 221 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 224 insertions(+)
create mode 100644 tests/test-filter-redirector.c
diff --git a/tests/.gitignore b/tests/.gitignore
index 10df017..5069d5d 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -64,5 +64,6 @@ test-x86-cpuid
test-xbzrle
test-netfilter
test-filter-mirror
+test-filter-redirector
*-test
qapi-schema/*.test.*
diff --git a/tests/Makefile b/tests/Makefile
index 5a8f590..ff212b6 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -214,6 +214,7 @@ check-qtest-x86_64-$(CONFIG_VHOST_NET_TEST_x86_64) +=
tests/vhost-user-test$(EXE
endif
check-qtest-i386-y += tests/test-netfilter$(EXESUF)
check-qtest-i386-y += tests/test-filter-mirror$(EXESUF)
+check-qtest-i386-y += tests/test-filter-redirector$(EXESUF)
check-qtest-x86_64-y = $(check-qtest-i386-y)
gcov-files-i386-y += i386-softmmu/hw/timer/mc146818rtc.c
gcov-files-x86_64-y = $(subst
i386-softmmu/,x86_64-softmmu/,$(gcov-files-i386-y))
@@ -568,6 +569,7 @@ tests/test-qemu-opts$(EXESUF): tests/test-qemu-opts.o
$(test-util-obj-y)
tests/test-write-threshold$(EXESUF): tests/test-write-threshold.o
$(test-block-obj-y)
tests/test-netfilter$(EXESUF): tests/test-netfilter.o $(qtest-obj-y)
tests/test-filter-mirror$(EXESUF): tests/test-filter-mirror.o $(qtest-obj-y)
+tests/test-filter-redirector$(EXESUF): tests/test-filter-redirector.o
$(qtest-obj-y)
tests/ivshmem-test$(EXESUF): tests/ivshmem-test.o
contrib/ivshmem-server/ivshmem-server.o $(libqos-pc-obj-y)
tests/vhost-user-bridge$(EXESUF): tests/vhost-user-bridge.o
diff --git a/tests/test-filter-redirector.c b/tests/test-filter-redirector.c
new file mode 100644
index 0000000..b93012c
--- /dev/null
+++ b/tests/test-filter-redirector.c
@@ -0,0 +1,221 @@
+/*
+ * QTest testcase for filter-redirector
+ *
+ * Copyright (c) 2016 FUJITSU LIMITED
+ * Author: Zhang Chen <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * later. See the COPYING file in the top-level directory.
+ *
+ * Case 1, tx traffic flow:
+ *
+ * qemu side | test side
+ * |
+ * +---------+ | +-------+
+ * | backend <---------------+ sock0 |
+ * +----+----+ | +-------+
+ * | |
+ * +----v----+ +-------+ |
+ * | rd0 +->+chardev| |
+ * +---------+ +---+---+ |
+ * | |
+ * +---------+ | |
+ * | rd1 <------+ |
+ * +----+----+ |
+ * | |
+ * +----v----+ | +-------+
+ * | rd2 +--------------->sock1 |
+ * +---------+ | +-------+
+ * +
+ *
+ * --------------------------------------
+ * Case 2, rx traffic flow
+ * qemu side | test side
+ * |
+ * +---------+ | +-------+
+ * | backend +---------------> sock1 |
+ * +----^----+ | +-------+
+ * | |
+ * +----+----+ +-------+ |
+ * | rd0 +<-+chardev| |
+ * +---------+ +---+---+ |
+ * ^ |
+ * +---------+ | |
+ * | rd1 +------+ |
+ * +----^----+ |
+ * | |
+ * +----+----+ | +-------+
+ * | rd2 <---------------+sock0 |
+ * +---------+ | +-------+
+ * +
+ */
+
+#include "qemu/osdep.h"
+#include <glib.h>
+#include "libqtest.h"
+#include "qemu/iov.h"
+#include "qemu/sockets.h"
+#include "qemu/error-report.h"
+#include "qemu/main-loop.h"
+
+static void test_redirector_tx(void)
+{
+#ifndef _WIN32
+/* socketpair(PF_UNIX) which does not exist on windows */
+
+ int backend_sock[2], recv_sock;
+ char *cmdline;
+ uint32_t ret = 0, len = 0;
+ char send_buf[] = "Hello!!";
+ char sock_path0[] = "filter-redirector0.XXXXXX";
+ char sock_path1[] = "filter-redirector1.XXXXXX";
+ char *recv_buf;
+ uint32_t size = sizeof(send_buf);
+ size = htonl(size);
+
+ ret = socketpair(PF_UNIX, SOCK_STREAM, 0, backend_sock);
+ g_assert_cmpint(ret, !=, -1);
+
+ ret = mkstemp(sock_path0);
+ g_assert_cmpint(ret, !=, -1);
+ ret = mkstemp(sock_path1);
+ g_assert_cmpint(ret, !=, -1);
+
+ cmdline = g_strdup_printf("-netdev socket,id=qtest-bn0,fd=%d "
+ "-device rtl8139,netdev=qtest-bn0,id=qtest-e0 "
+ "-chardev socket,id=redirector0,path=%s,server,nowait "
+ "-chardev socket,id=redirector1,path=%s,server,nowait "
+ "-chardev socket,id=redirector2,path=%s,nowait "
+ "-object filter-redirector,id=qtest-f0,netdev=qtest-bn0,"
+ "queue=tx,outdev=redirector0 "
+ "-object filter-redirector,id=qtest-f1,netdev=qtest-bn0,"
+ "queue=tx,indev=redirector2 "
+ "-object filter-redirector,id=qtest-f2,netdev=qtest-bn0,"
+ "queue=tx,outdev=redirector1 "
+ , backend_sock[1], sock_path0, sock_path1, sock_path0);
+ qtest_start(cmdline);
+ g_free(cmdline);
+
+ recv_sock = unix_connect(sock_path1, NULL);
+ g_assert_cmpint(recv_sock, !=, -1);
+
+ /* send a qmp command to guarantee that 'connected' is setting to true. */
+ qmp("{ 'execute' : 'query-status'}");
+
+ struct iovec iov[] = {
+ {
+ .iov_base = &size,
+ .iov_len = sizeof(size),
+ }, {
+ .iov_base = send_buf,
+ .iov_len = sizeof(send_buf),
+ },
+ };
+
+ ret = iov_send(backend_sock[0], iov, 2, 0, sizeof(size) +
sizeof(send_buf));
+ g_assert_cmpint(ret, ==, sizeof(send_buf) + sizeof(size));
+ close(backend_sock[0]);
+
+ ret = qemu_recv(recv_sock, &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);
+ g_assert_cmpstr(recv_buf, ==, send_buf);
+
+ g_free(recv_buf);
+ close(recv_sock);
+ unlink(sock_path0);
+ unlink(sock_path1);
+ qtest_end();
+
+#endif
+}
+
+static void test_redirector_rx(void)
+{
+#ifndef _WIN32
+/* socketpair(PF_UNIX) which does not exist on windows */
+
+ int backend_sock[2], send_sock;
+ char *cmdline;
+ uint32_t ret = 0, len = 0;
+ char send_buf[] = "Hello!!";
+ char sock_path0[] = "filter-redirector0.XXXXXX";
+ char sock_path1[] = "filter-redirector1.XXXXXX";
+ char *recv_buf;
+ uint32_t size = sizeof(send_buf);
+ size = htonl(size);
+
+ ret = socketpair(PF_UNIX, SOCK_STREAM, 0, backend_sock);
+ g_assert_cmpint(ret, !=, -1);
+
+ ret = mkstemp(sock_path0);
+ g_assert_cmpint(ret, !=, -1);
+ ret = mkstemp(sock_path1);
+ g_assert_cmpint(ret, !=, -1);
+
+ cmdline = g_strdup_printf("-netdev socket,id=qtest-bn0,fd=%d "
+ "-device rtl8139,netdev=qtest-bn0,id=qtest-e0 "
+ "-chardev socket,id=redirector0,path=%s,server,nowait "
+ "-chardev socket,id=redirector1,path=%s,server,nowait "
+ "-chardev socket,id=redirector2,path=%s,nowait "
+ "-object filter-redirector,id=qtest-f0,netdev=qtest-bn0,"
+ "queue=rx,indev=redirector0 "
+ "-object filter-redirector,id=qtest-f1,netdev=qtest-bn0,"
+ "queue=rx,outdev=redirector2 "
+ "-object filter-redirector,id=qtest-f2,netdev=qtest-bn0,"
+ "queue=rx,indev=redirector1 "
+ , backend_sock[1], sock_path0, sock_path1, sock_path0);
+ qtest_start(cmdline);
+ g_free(cmdline);
+
+ struct iovec iov[] = {
+ {
+ .iov_base = &size,
+ .iov_len = sizeof(size),
+ }, {
+ .iov_base = send_buf,
+ .iov_len = sizeof(send_buf),
+ },
+ };
+
+ send_sock = unix_connect(sock_path1, NULL);
+ g_assert_cmpint(send_sock, !=, -1);
+ /* send a qmp command to guarantee that 'connected' is setting to true. */
+ qmp("{ 'execute' : 'query-status'}");
+
+ ret = iov_send(send_sock, iov, 2, 0, sizeof(size) + sizeof(send_buf));
+ g_assert_cmpint(ret, ==, sizeof(send_buf) + sizeof(size));
+ close(send_sock);
+
+ ret = qemu_recv(backend_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(backend_sock[0], recv_buf, len, 0);
+ g_assert_cmpstr(recv_buf, ==, send_buf);
+
+ g_free(recv_buf);
+ unlink(sock_path0);
+ unlink(sock_path1);
+ qtest_end();
+
+#endif
+}
+
+int main(int argc, char **argv)
+{
+ int ret;
+
+ g_test_init(&argc, &argv, NULL);
+ qtest_add_func("/netfilter/redirector_tx", test_redirector_tx);
+ qtest_add_func("/netfilter/redirector_rx", test_redirector_rx);
+ ret = g_test_run();
+
+ return ret;
+}
--
1.9.1