tests/test-filter-mirror.c

   1 /*
   2  * QTest testcase for filter-mirror
   3  *
   4  * Copyright (c) 2016 FUJITSU LIMITED
   5  * Author: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
   6  *
   7  * This work is licensed under the terms of the GNU GPL, version 2 or
   8  * later.  See the COPYING file in the top-level directory.
   9  */
  10
  11 #include "qemu/osdep.h"
  12 #include "libqtest.h"
  13 #include "qemu/iov.h"
  14 #include "qemu/sockets.h"
  15 #include "qemu/error-report.h"
  16 #include "qemu/main-loop.h"
  17
  18 static void test_mirror(void)
  19 {
  20 #ifndef _WIN32
  21 /* socketpair(PF_UNIX) which does not exist on windows */
  22
  23     int send_sock[2], recv_sock;
  24     char *cmdline;
  25     uint32_t ret = 0, len = 0;
  26     char send_buf[] = "Hello! filter-mirror~";
  27     char sock_path[] = "filter-mirror.XXXXXX";
  28     char *recv_buf;
  29     uint32_t size = sizeof(send_buf);
  30     size = htonl(size);
  31
  32     ret = socketpair(PF_UNIX, SOCK_STREAM, 0, send_sock);
  33     g_assert_cmpint(ret, !=, -1);
  34
  35     ret = mkstemp(sock_path);
  36     g_assert_cmpint(ret, !=, -1);
  37
  38     cmdline = g_strdup_printf("-netdev socket,id=qtest-bn0,fd=%d "
  39                  "-device e1000,netdev=qtest-bn0,id=qtest-e0 "
  40                  "-chardev socket,id=mirror0,path=%s,server,nowait "
  41                  "-object filter-mirror,id=qtest-f0,netdev=qtest-bn0,queue=tx,outdev=mirror0 "
  42                  , send_sock[1], sock_path);
  43     qtest_start(cmdline);
  44     g_free(cmdline);
  45
  46     recv_sock = unix_connect(sock_path, NULL);
  47     g_assert_cmpint(recv_sock, !=, -1);
  48
  49     struct iovec iov[] = {
  50         {
  51             .iov_base = &size,
  52             .iov_len = sizeof(size),
  53         }, {
  54             .iov_base = send_buf,
  55             .iov_len = sizeof(send_buf),
  56         },
  57     };
  58
  59     /* send a qmp command to guarantee that 'connected' is setting to true. */
  60     qmp_discard_response("{ 'execute' : 'query-status'}");
  61     ret = iov_send(send_sock[0], iov, 2, 0, sizeof(size) + sizeof(send_buf));
  62     g_assert_cmpint(ret, ==, sizeof(send_buf) + sizeof(size));
  63     close(send_sock[0]);
  64
  65     ret = qemu_recv(recv_sock, &len, sizeof(len), 0);
  66     g_assert_cmpint(ret, ==, sizeof(len));
  67     len = ntohl(len);
  68
  69     g_assert_cmpint(len, ==, sizeof(send_buf));
  70     recv_buf = g_malloc(len);
  71     ret = qemu_recv(recv_sock, recv_buf, len, 0);
  72     g_assert_cmpstr(recv_buf, ==, send_buf);
  73
  74     g_free(recv_buf);
  75     close(recv_sock);
  76     unlink(sock_path);
  77
  78 #endif
  79 }
  80
  81 int main(int argc, char **argv)
  82 {
  83     int ret;
  84
  85     g_test_init(&argc, &argv, NULL);
  86
  87     qtest_add_func("/netfilter/mirror", test_mirror);
  88     ret = g_test_run();
  89     qtest_end();
  90
  91     return ret;
  92 }