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 "libqtest.h" 55 #include "qapi/qmp/qdict.h" 56 #include "qemu/iov.h" 57 #include "qemu/sockets.h" 58 #include "qemu/error-report.h" 59 #include "qemu/main-loop.h" 60 61 /* TODO actually test the results and get rid of this */ 62 #define qmp_discard_response(qs, ...) qobject_unref(qtest_qmp(qs, __VA_ARGS__)) 63 64 static void test_redirector_tx(void) 65 { 66 int backend_sock[2], recv_sock; 67 uint32_t ret = 0, len = 0; 68 char send_buf[] = "Hello!!"; 69 char sock_path0[] = "filter-redirector0.XXXXXX"; 70 char sock_path1[] = "filter-redirector1.XXXXXX"; 71 char *recv_buf; 72 uint32_t size = sizeof(send_buf); 73 size = htonl(size); 74 QTestState *qts; 75 76 ret = socketpair(PF_UNIX, SOCK_STREAM, 0, backend_sock); 77 g_assert_cmpint(ret, !=, -1); 78 79 ret = mkstemp(sock_path0); 80 g_assert_cmpint(ret, !=, -1); 81 ret = mkstemp(sock_path1); 82 g_assert_cmpint(ret, !=, -1); 83 84 qts = qtest_initf( 85 "-nic socket,id=qtest-bn0,fd=%d " 86 "-chardev socket,id=redirector0,path=%s,server=on,wait=off " 87 "-chardev socket,id=redirector1,path=%s,server=on,wait=off " 88 "-chardev socket,id=redirector2,path=%s " 89 "-object filter-redirector,id=qtest-f0,netdev=qtest-bn0," 90 "queue=tx,outdev=redirector0 " 91 "-object filter-redirector,id=qtest-f1,netdev=qtest-bn0," 92 "queue=tx,indev=redirector2 " 93 "-object filter-redirector,id=qtest-f2,netdev=qtest-bn0," 94 "queue=tx,outdev=redirector1 ", backend_sock[1], 95 sock_path0, sock_path1, sock_path0); 96 97 recv_sock = unix_connect(sock_path1, NULL); 98 g_assert_cmpint(recv_sock, !=, -1); 99 100 /* send a qmp command to guarantee that 'connected' is setting to true. */ 101 qmp_discard_response(qts, "{ 'execute' : 'query-status'}"); 102 103 struct iovec iov[] = { 104 { 105 .iov_base = &size, 106 .iov_len = sizeof(size), 107 }, { 108 .iov_base = send_buf, 109 .iov_len = sizeof(send_buf), 110 }, 111 }; 112 113 ret = iov_send(backend_sock[0], iov, 2, 0, sizeof(size) + sizeof(send_buf)); 114 g_assert_cmpint(ret, ==, sizeof(send_buf) + sizeof(size)); 115 close(backend_sock[0]); 116 117 ret = recv(recv_sock, &len, sizeof(len), 0); 118 g_assert_cmpint(ret, ==, sizeof(len)); 119 len = ntohl(len); 120 121 g_assert_cmpint(len, ==, sizeof(send_buf)); 122 recv_buf = g_malloc(len); 123 ret = recv(recv_sock, recv_buf, len, 0); 124 g_assert_cmpstr(recv_buf, ==, send_buf); 125 126 g_free(recv_buf); 127 close(recv_sock); 128 unlink(sock_path0); 129 unlink(sock_path1); 130 qtest_quit(qts); 131 } 132 133 static void test_redirector_rx(void) 134 { 135 int backend_sock[2], send_sock; 136 uint32_t ret = 0, len = 0; 137 char send_buf[] = "Hello!!"; 138 char sock_path0[] = "filter-redirector0.XXXXXX"; 139 char sock_path1[] = "filter-redirector1.XXXXXX"; 140 char *recv_buf; 141 uint32_t size = sizeof(send_buf); 142 size = htonl(size); 143 QTestState *qts; 144 145 ret = socketpair(PF_UNIX, SOCK_STREAM, 0, backend_sock); 146 g_assert_cmpint(ret, !=, -1); 147 148 ret = mkstemp(sock_path0); 149 g_assert_cmpint(ret, !=, -1); 150 ret = mkstemp(sock_path1); 151 g_assert_cmpint(ret, !=, -1); 152 153 qts = qtest_initf( 154 "-nic socket,id=qtest-bn0,fd=%d " 155 "-chardev socket,id=redirector0,path=%s,server=on,wait=off " 156 "-chardev socket,id=redirector1,path=%s,server=on,wait=off " 157 "-chardev socket,id=redirector2,path=%s " 158 "-object filter-redirector,id=qtest-f0,netdev=qtest-bn0," 159 "queue=rx,indev=redirector0 " 160 "-object filter-redirector,id=qtest-f1,netdev=qtest-bn0," 161 "queue=rx,outdev=redirector2 " 162 "-object filter-redirector,id=qtest-f2,netdev=qtest-bn0," 163 "queue=rx,indev=redirector1 ", backend_sock[1], 164 sock_path0, sock_path1, sock_path0); 165 166 struct iovec iov[] = { 167 { 168 .iov_base = &size, 169 .iov_len = sizeof(size), 170 }, { 171 .iov_base = send_buf, 172 .iov_len = sizeof(send_buf), 173 }, 174 }; 175 176 send_sock = unix_connect(sock_path1, NULL); 177 g_assert_cmpint(send_sock, !=, -1); 178 /* send a qmp command to guarantee that 'connected' is setting to true. */ 179 qmp_discard_response(qts, "{ 'execute' : 'query-status'}"); 180 181 ret = iov_send(send_sock, iov, 2, 0, sizeof(size) + sizeof(send_buf)); 182 g_assert_cmpint(ret, ==, sizeof(send_buf) + sizeof(size)); 183 184 ret = recv(backend_sock[0], &len, sizeof(len), 0); 185 g_assert_cmpint(ret, ==, sizeof(len)); 186 len = ntohl(len); 187 188 g_assert_cmpint(len, ==, sizeof(send_buf)); 189 recv_buf = g_malloc(len); 190 ret = recv(backend_sock[0], recv_buf, len, 0); 191 g_assert_cmpstr(recv_buf, ==, send_buf); 192 193 close(send_sock); 194 g_free(recv_buf); 195 unlink(sock_path0); 196 unlink(sock_path1); 197 qtest_quit(qts); 198 } 199 200 int main(int argc, char **argv) 201 { 202 g_test_init(&argc, &argv, NULL); 203 qtest_add_func("/netfilter/redirector_tx", test_redirector_tx); 204 qtest_add_func("/netfilter/redirector_rx", test_redirector_rx); 205 return g_test_run(); 206 } 207