1 /* Copyright libuv project and contributors. All rights reserved. 2 * 3 * Permission is hereby granted, free of charge, to any person obtaining a copy 4 * of this software and associated documentation files (the "Software"), to 5 * deal in the Software without restriction, including without limitation the 6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 7 * sell copies of the Software, and to permit persons to whom the Software is 8 * furnished to do so, subject to the following conditions: 9 * 10 * The above copyright notice and this permission notice shall be included in 11 * all copies or substantial portions of the Software. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 19 * IN THE SOFTWARE. 20 */ 21 22 #include "uv.h" 23 #include "task.h" 24 25 #include <stdio.h> 26 #include <stdlib.h> 27 #include <string.h> 28 29 #define CHECK_HANDLE(handle) \ 30 ASSERT((uv_udp_t*)(handle) == &server || (uv_udp_t*)(handle) == &client) 31 32 static uv_udp_t server; 33 static uv_udp_t client; 34 static uv_buf_t buf; 35 static struct sockaddr_in6 lo_addr; 36 37 static int cl_send_cb_called; 38 static int sv_recv_cb_called; 39 40 static int close_cb_called; 41 42 43 static void alloc_cb(uv_handle_t* handle, 44 size_t suggested_size, 45 uv_buf_t* buf) { 46 static char slab[65536]; 47 CHECK_HANDLE(handle); 48 ASSERT_LE(suggested_size, sizeof(slab)); 49 buf->base = slab; 50 buf->len = sizeof(slab); 51 } 52 53 54 static void close_cb(uv_handle_t* handle) { 55 CHECK_HANDLE(handle); 56 ASSERT(uv_is_closing(handle)); 57 close_cb_called++; 58 } 59 60 61 static void cl_send_cb(uv_udp_send_t* req, int status) { 62 int r; 63 64 ASSERT_NOT_NULL(req); 65 ASSERT_EQ(status, 0); 66 CHECK_HANDLE(req->handle); 67 if (++cl_send_cb_called == 1) { 68 uv_udp_connect(&client, NULL); 69 r = uv_udp_send(req, &client, &buf, 1, NULL, cl_send_cb); 70 ASSERT_EQ(r, UV_EDESTADDRREQ); 71 r = uv_udp_send(req, 72 &client, 73 &buf, 74 1, 75 (const struct sockaddr*) &lo_addr, 76 cl_send_cb); 77 ASSERT_EQ(r, 0); 78 } 79 80 } 81 82 83 static void sv_recv_cb(uv_udp_t* handle, 84 ssize_t nread, 85 const uv_buf_t* rcvbuf, 86 const struct sockaddr* addr, 87 unsigned flags) { 88 if (nread > 0) { 89 ASSERT_EQ(nread, 4); 90 ASSERT_NOT_NULL(addr); 91 ASSERT_EQ(memcmp("EXIT", rcvbuf->base, nread), 0); 92 if (++sv_recv_cb_called == 4) { 93 uv_close((uv_handle_t*) &server, close_cb); 94 uv_close((uv_handle_t*) &client, close_cb); 95 } 96 } 97 } 98 99 100 TEST_IMPL(udp_connect6) { 101 uv_udp_send_t req; 102 struct sockaddr_in6 ext_addr; 103 struct sockaddr_in6 tmp_addr; 104 int r; 105 int addrlen; 106 107 if (!can_ipv6()) 108 RETURN_SKIP("IPv6 not supported"); 109 110 ASSERT_EQ(0, uv_ip6_addr("::", TEST_PORT, &lo_addr)); 111 112 r = uv_udp_init(uv_default_loop(), &server); 113 ASSERT_EQ(r, 0); 114 115 r = uv_udp_bind(&server, (const struct sockaddr*) &lo_addr, 0); 116 ASSERT_EQ(r, 0); 117 118 r = uv_udp_recv_start(&server, alloc_cb, sv_recv_cb); 119 ASSERT_EQ(r, 0); 120 121 r = uv_udp_init(uv_default_loop(), &client); 122 ASSERT_EQ(r, 0); 123 124 buf = uv_buf_init("EXIT", 4); 125 126 /* connect() to INADDR_ANY fails on Windows wih WSAEADDRNOTAVAIL */ 127 ASSERT_EQ(0, uv_ip6_addr("::", TEST_PORT, &tmp_addr)); 128 r = uv_udp_connect(&client, (const struct sockaddr*) &tmp_addr); 129 #ifdef _WIN32 130 ASSERT_EQ(r, UV_EADDRNOTAVAIL); 131 #else 132 ASSERT_EQ(r, 0); 133 r = uv_udp_connect(&client, NULL); 134 ASSERT_EQ(r, 0); 135 #endif 136 137 ASSERT_EQ(0, uv_ip6_addr("2001:4860:4860::8888", TEST_PORT, &ext_addr)); 138 ASSERT_EQ(0, uv_ip6_addr("::1", TEST_PORT, &lo_addr)); 139 140 r = uv_udp_connect(&client, (const struct sockaddr*) &lo_addr); 141 ASSERT_EQ(r, 0); 142 r = uv_udp_connect(&client, (const struct sockaddr*) &ext_addr); 143 ASSERT_EQ(r, UV_EISCONN); 144 145 addrlen = sizeof(tmp_addr); 146 r = uv_udp_getpeername(&client, (struct sockaddr*) &tmp_addr, &addrlen); 147 ASSERT_EQ(r, 0); 148 149 /* To send messages in connected UDP sockets addr must be NULL */ 150 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &lo_addr); 151 ASSERT_EQ(r, UV_EISCONN); 152 r = uv_udp_try_send(&client, &buf, 1, NULL); 153 ASSERT_EQ(r, 4); 154 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &ext_addr); 155 ASSERT_EQ(r, UV_EISCONN); 156 157 r = uv_udp_connect(&client, NULL); 158 ASSERT_EQ(r, 0); 159 r = uv_udp_connect(&client, NULL); 160 ASSERT_EQ(r, UV_ENOTCONN); 161 162 addrlen = sizeof(tmp_addr); 163 r = uv_udp_getpeername(&client, (struct sockaddr*) &tmp_addr, &addrlen); 164 ASSERT_EQ(r, UV_ENOTCONN); 165 166 /* To send messages in disconnected UDP sockets addr must be set */ 167 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &lo_addr); 168 ASSERT_EQ(r, 4); 169 r = uv_udp_try_send(&client, &buf, 1, NULL); 170 ASSERT_EQ(r, UV_EDESTADDRREQ); 171 172 173 r = uv_udp_connect(&client, (const struct sockaddr*) &lo_addr); 174 ASSERT_EQ(r, 0); 175 r = uv_udp_send(&req, 176 &client, 177 &buf, 178 1, 179 (const struct sockaddr*) &lo_addr, 180 cl_send_cb); 181 ASSERT_EQ(r, UV_EISCONN); 182 r = uv_udp_send(&req, &client, &buf, 1, NULL, cl_send_cb); 183 ASSERT_EQ(r, 0); 184 185 uv_run(uv_default_loop(), UV_RUN_DEFAULT); 186 187 ASSERT_EQ(close_cb_called, 2); 188 ASSERT_EQ(sv_recv_cb_called, 4); 189 ASSERT_EQ(cl_send_cb_called, 2); 190 191 ASSERT_EQ(client.send_queue_size, 0); 192 ASSERT_EQ(server.send_queue_size, 0); 193 194 MAKE_VALGRIND_HAPPY(); 195 return 0; 196 } 197