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tests/test-filter-redirector: Add unit test for filter-redirector

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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 <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Zhang Chen 2016-03-17 16:16:27 +08:00 committed by Jason Wang
parent d46f75b2e9
commit 9fd3c5d556
3 changed files with 224 additions and 0 deletions
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1
tests/.gitignore vendored
View File

@ -69,5 +69,6 @@ test-x86-cpuid
test-xbzrle
test-netfilter
test-filter-mirror
test-filter-redirector
*-test
qapi-schema/*.test.*

2
tests/Makefile
View File

@ -221,6 +221,7 @@ 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))
@ -582,6 +583,7 @@ 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

221
tests/test-filter-redirector.c Normal file
View File

@ -0,0 +1,221 @@
/*
* QTest testcase for filter-redirector
*
* Copyright (c) 2016 FUJITSU LIMITED
* Author: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
*
* 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;
}