tests/test-filter-redirector.c

   1 /*
   2  * QTest testcase for filter-redirector
   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  * Case 1, tx traffic flow:
  11  *
  12  * qemu side              | test side
  13  *                        |
  14  * +---------+            |  +-------+
  15  * | backend <---------------+ sock0 |
  16  * +----+----+            |  +-------+
  17  *      |                 |
  18  * +----v----+  +-------+ |
  19  * |  rd0    +->+chardev| |
  20  * +---------+  +---+---+ |
  21  *                  |     |
  22  * +---------+      |     |
  23  * |  rd1    <------+     |
  24  * +----+----+            |
  25  *      |                 |
  26  * +----v----+            |  +-------+
  27  * |  rd2    +--------------->sock1  |
  28  * +---------+            |  +-------+
  29  *                        +
  30  *
  31  * --------------------------------------
  32  * Case 2, rx traffic flow
  33  * qemu side              | test side
  34  *                        |
  35  * +---------+            |  +-------+
  36  * | backend +---------------> sock1 |
  37  * +----^----+            |  +-------+
  38  *      |                 |
  39  * +----+----+  +-------+ |
  40  * |  rd0    +<-+chardev| |
  41  * +---------+  +---+---+ |
  42  *                  ^     |
  43  * +---------+      |     |
  44  * |  rd1    +------+     |
  45  * +----^----+            |
  46  *      |                 |
  47  * +----+----+            |  +-------+
  48  * |  rd2    <---------------+sock0  |
  49  * +---------+            |  +-------+
  50  *                        +
  51  */
  52
  53 #include "qemu/osdep.h"
  54 #include "qemu-common.h"
  55 #include "libqtest.h"
  56 #include "qapi/qmp/qdict.h"
  57 #include "qemu/iov.h"
  58 #include "qemu/sockets.h"
  59 #include "qemu/error-report.h"
  60 #include "qemu/main-loop.h"
  61
  62 /* TODO actually test the results and get rid of this */
  63 #define qmp_discard_response(qs, ...) qobject_unref(qtest_qmp(qs, __VA_ARGS__))
  64
  65 static const char *get_devstr(void)
  66 {
  67     if (g_str_equal(qtest_get_arch(), "s390x")) {
  68         return "virtio-net-ccw";
  69     }
  70
  71     return "rtl8139";
  72 }
  73
  74
  75 static void test_redirector_tx(void)
  76 {
  77     int backend_sock[2], recv_sock;
  78     uint32_t ret = 0, len = 0;
  79     char send_buf[] = "Hello!!";
  80     char sock_path0[] = "filter-redirector0.XXXXXX";
  81     char sock_path1[] = "filter-redirector1.XXXXXX";
  82     char *recv_buf;
  83     uint32_t size = sizeof(send_buf);
  84     size = htonl(size);
  85     QTestState *qts;
  86
  87     ret = socketpair(PF_UNIX, SOCK_STREAM, 0, backend_sock);
  88     g_assert_cmpint(ret, !=, -1);
  89
  90     ret = mkstemp(sock_path0);
  91     g_assert_cmpint(ret, !=, -1);
  92     ret = mkstemp(sock_path1);
  93     g_assert_cmpint(ret, !=, -1);
  94
  95     qts = qtest_initf(
  96         "-netdev socket,id=qtest-bn0,fd=%d "
  97         "-device %s,netdev=qtest-bn0,id=qtest-e0 "
  98         "-chardev socket,id=redirector0,path=%s,server,nowait "
  99         "-chardev socket,id=redirector1,path=%s,server,nowait "
 100         "-chardev socket,id=redirector2,path=%s "
 101         "-object filter-redirector,id=qtest-f0,netdev=qtest-bn0,"
 102         "queue=tx,outdev=redirector0 "
 103         "-object filter-redirector,id=qtest-f1,netdev=qtest-bn0,"
 104         "queue=tx,indev=redirector2 "
 105         "-object filter-redirector,id=qtest-f2,netdev=qtest-bn0,"
 106         "queue=tx,outdev=redirector1 ", backend_sock[1], get_devstr(),
 107         sock_path0, sock_path1, sock_path0);
 108
 109     recv_sock = unix_connect(sock_path1, NULL);
 110     g_assert_cmpint(recv_sock, !=, -1);
 111
 112     /* send a qmp command to guarantee that 'connected' is setting to true. */
 113     qmp_discard_response(qts, "{ 'execute' : 'query-status'}");
 114
 115     struct iovec iov[] = {
 116         {
 117             .iov_base = &size,
 118             .iov_len = sizeof(size),
 119         }, {
 120             .iov_base = send_buf,
 121             .iov_len = sizeof(send_buf),
 122         },
 123     };
 124
 125     ret = iov_send(backend_sock[0], iov, 2, 0, sizeof(size) + sizeof(send_buf));
 126     g_assert_cmpint(ret, ==, sizeof(send_buf) + sizeof(size));
 127     close(backend_sock[0]);
 128
 129     ret = qemu_recv(recv_sock, &len, sizeof(len), 0);
 130     g_assert_cmpint(ret, ==, sizeof(len));
 131     len = ntohl(len);
 132
 133     g_assert_cmpint(len, ==, sizeof(send_buf));
 134     recv_buf = g_malloc(len);
 135     ret = qemu_recv(recv_sock, recv_buf, len, 0);
 136     g_assert_cmpstr(recv_buf, ==, send_buf);
 137
 138     g_free(recv_buf);
 139     close(recv_sock);
 140     unlink(sock_path0);
 141     unlink(sock_path1);
 142     qtest_quit(qts);
 143 }
 144
 145 static void test_redirector_rx(void)
 146 {
 147     int backend_sock[2], send_sock;
 148     uint32_t ret = 0, len = 0;
 149     char send_buf[] = "Hello!!";
 150     char sock_path0[] = "filter-redirector0.XXXXXX";
 151     char sock_path1[] = "filter-redirector1.XXXXXX";
 152     char *recv_buf;
 153     uint32_t size = sizeof(send_buf);
 154     size = htonl(size);
 155     QTestState *qts;
 156
 157     ret = socketpair(PF_UNIX, SOCK_STREAM, 0, backend_sock);
 158     g_assert_cmpint(ret, !=, -1);
 159
 160     ret = mkstemp(sock_path0);
 161     g_assert_cmpint(ret, !=, -1);
 162     ret = mkstemp(sock_path1);
 163     g_assert_cmpint(ret, !=, -1);
 164
 165     qts = qtest_initf(
 166         "-netdev socket,id=qtest-bn0,fd=%d "
 167         "-device %s,netdev=qtest-bn0,id=qtest-e0 "
 168         "-chardev socket,id=redirector0,path=%s,server,nowait "
 169         "-chardev socket,id=redirector1,path=%s,server,nowait "
 170         "-chardev socket,id=redirector2,path=%s "
 171         "-object filter-redirector,id=qtest-f0,netdev=qtest-bn0,"
 172         "queue=rx,indev=redirector0 "
 173         "-object filter-redirector,id=qtest-f1,netdev=qtest-bn0,"
 174         "queue=rx,outdev=redirector2 "
 175         "-object filter-redirector,id=qtest-f2,netdev=qtest-bn0,"
 176         "queue=rx,indev=redirector1 ", backend_sock[1], get_devstr(),
 177         sock_path0, sock_path1, sock_path0);
 178
 179     struct iovec iov[] = {
 180         {
 181             .iov_base = &size,
 182             .iov_len = sizeof(size),
 183         }, {
 184             .iov_base = send_buf,
 185             .iov_len = sizeof(send_buf),
 186         },
 187     };
 188
 189     send_sock = unix_connect(sock_path1, NULL);
 190     g_assert_cmpint(send_sock, !=, -1);
 191     /* send a qmp command to guarantee that 'connected' is setting to true. */
 192     qmp_discard_response(qts, "{ 'execute' : 'query-status'}");
 193
 194     ret = iov_send(send_sock, iov, 2, 0, sizeof(size) + sizeof(send_buf));
 195     g_assert_cmpint(ret, ==, sizeof(send_buf) + sizeof(size));
 196
 197     ret = qemu_recv(backend_sock[0], &len, sizeof(len), 0);
 198     g_assert_cmpint(ret, ==, sizeof(len));
 199     len = ntohl(len);
 200
 201     g_assert_cmpint(len, ==, sizeof(send_buf));
 202     recv_buf = g_malloc(len);
 203     ret = qemu_recv(backend_sock[0], recv_buf, len, 0);
 204     g_assert_cmpstr(recv_buf, ==, send_buf);
 205
 206     close(send_sock);
 207     g_free(recv_buf);
 208     unlink(sock_path0);
 209     unlink(sock_path1);
 210     qtest_quit(qts);
 211 }
 212
 213 int main(int argc, char **argv)
 214 {
 215     g_test_init(&argc, &argv, NULL);
 216     qtest_add_func("/netfilter/redirector_tx", test_redirector_tx);
 217     qtest_add_func("/netfilter/redirector_rx", test_redirector_rx);
 218     return g_test_run();
 219 }