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160
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1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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2 *
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3 * Permission is hereby granted, free of charge, to any person obtaining a copy
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4 * of this software and associated documentation files (the "Software"), to
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5 * deal in the Software without restriction, including without limitation the
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6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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7 * sell copies of the Software, and to permit persons to whom the Software is
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8 * furnished to do so, subject to the following conditions:
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9 *
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10 * The above copyright notice and this permission notice shall be included in
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11 * all copies or substantial portions of the Software.
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12 *
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13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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19 * IN THE SOFTWARE.
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20 */
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21
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22 #include "uv.h"
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23 #include "task.h"
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24 #include <stdio.h>
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25 #include <stdlib.h>
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26 #include <string.h>
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27
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28 #ifndef _WIN32
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29 # include <unistd.h>
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30 # include <sys/socket.h>
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31 # include <sys/un.h>
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32 #endif
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33
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34 static int send_cb_called = 0;
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35 static int close_cb_called = 0;
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36
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37 static uv_udp_send_t send_req;
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38
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39
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40 static void startup(void) {
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41 #ifdef _WIN32
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42 struct WSAData wsa_data;
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43 int r = WSAStartup(MAKEWORD(2, 2), &wsa_data);
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44 ASSERT_OK(r);
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45 #endif
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46 }
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47
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48
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49 static uv_os_sock_t create_udp_socket(void) {
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50 uv_os_sock_t sock;
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51
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52 sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
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53 #ifdef _WIN32
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54 ASSERT_NE(sock, INVALID_SOCKET);
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55 #else
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56 ASSERT_GE(sock, 0);
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57 #endif
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58
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59 #ifndef _WIN32
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60 {
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61 /* Allow reuse of the port. */
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62 int yes = 1;
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63 int r = setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof yes);
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64 ASSERT_OK(r);
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65 }
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66 #endif
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67
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68 return sock;
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69 }
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70
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71
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72 static void close_socket(uv_os_sock_t sock) {
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73 int r;
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74 #ifdef _WIN32
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75 r = closesocket(sock);
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76 #else
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77 r = close(sock);
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78 #endif
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79 ASSERT_OK(r);
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80 }
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81
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82
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83 static void alloc_cb(uv_handle_t* handle,
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84 size_t suggested_size,
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85 uv_buf_t* buf) {
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86 static char slab[65536];
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87 ASSERT_LE(suggested_size, sizeof(slab));
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88 buf->base = slab;
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89 buf->len = sizeof(slab);
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90 }
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91
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92
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93 static void close_cb(uv_handle_t* handle) {
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94 ASSERT_NOT_NULL(handle);
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95 close_cb_called++;
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96 }
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97
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98
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99 static void recv_cb(uv_udp_t* handle,
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100 ssize_t nread,
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101 const uv_buf_t* buf,
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102 const struct sockaddr* addr,
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103 unsigned flags) {
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104 int r;
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105
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106 if (nread < 0) {
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107 ASSERT(0 && "unexpected error");
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108 }
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109
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110 if (nread == 0) {
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111 /* Returning unused buffer. Don't count towards sv_recv_cb_called */
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112 ASSERT_NULL(addr);
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113 return;
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114 }
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115
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116 ASSERT_OK(flags);
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117
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118 ASSERT_NOT_NULL(addr);
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119 ASSERT_EQ(4, nread);
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120 ASSERT_OK(memcmp("PING", buf->base, nread));
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121
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122 r = uv_udp_recv_stop(handle);
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123 ASSERT_OK(r);
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124
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125 uv_close((uv_handle_t*) handle, close_cb);
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126 }
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127
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128
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129 static void send_cb(uv_udp_send_t* req, int status) {
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130 ASSERT_NOT_NULL(req);
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131 ASSERT_OK(status);
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132
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133 send_cb_called++;
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134 uv_close((uv_handle_t*)req->handle, close_cb);
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135 }
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136
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137
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138 TEST_IMPL(udp_open) {
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139 struct sockaddr_in addr;
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140 uv_buf_t buf = uv_buf_init("PING", 4);
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141 uv_udp_t client, client2;
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142 uv_os_sock_t sock;
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143 int r;
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144
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145 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
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146
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147 startup();
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148 sock = create_udp_socket();
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149
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150 r = uv_udp_init(uv_default_loop(), &client);
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151 ASSERT_OK(r);
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152
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153 r = uv_udp_open(&client, sock);
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154 ASSERT_OK(r);
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155
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156 r = uv_udp_bind(&client, (const struct sockaddr*) &addr, 0);
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157 ASSERT_OK(r);
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158
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159 r = uv_udp_recv_start(&client, alloc_cb, recv_cb);
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160 ASSERT_OK(r);
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161
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162 r = uv_udp_send(&send_req,
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163 &client,
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164 &buf,
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165 1,
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166 (const struct sockaddr*) &addr,
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167 send_cb);
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168 ASSERT_OK(r);
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169
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170 #ifndef _WIN32
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171 {
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172 r = uv_udp_init(uv_default_loop(), &client2);
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173 ASSERT_OK(r);
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174
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175 r = uv_udp_open(&client2, sock);
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176 ASSERT_EQ(r, UV_EEXIST);
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177
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178 uv_close((uv_handle_t*) &client2, NULL);
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179 }
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180 #else /* _WIN32 */
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181 (void)client2;
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182 #endif
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183
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184 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
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185
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186 ASSERT_EQ(1, send_cb_called);
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187 ASSERT_EQ(1, close_cb_called);
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188
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189 ASSERT_OK(client.send_queue_size);
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190
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191 MAKE_VALGRIND_HAPPY(uv_default_loop());
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192 return 0;
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193 }
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194
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195
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196 TEST_IMPL(udp_open_twice) {
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197 uv_udp_t client;
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198 uv_os_sock_t sock1, sock2;
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199 int r;
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200
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201 startup();
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202 sock1 = create_udp_socket();
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203 sock2 = create_udp_socket();
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204
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205 r = uv_udp_init(uv_default_loop(), &client);
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206 ASSERT_OK(r);
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207
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208 r = uv_udp_open(&client, sock1);
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209 ASSERT_OK(r);
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210
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211 r = uv_udp_open(&client, sock2);
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212 ASSERT_EQ(r, UV_EBUSY);
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213 close_socket(sock2);
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214
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215 uv_close((uv_handle_t*) &client, NULL);
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216 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
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217
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218 MAKE_VALGRIND_HAPPY(uv_default_loop());
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219 return 0;
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220 }
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221
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222 TEST_IMPL(udp_open_bound) {
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223 struct sockaddr_in addr;
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224 uv_udp_t client;
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225 uv_os_sock_t sock;
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226 int r;
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227
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228 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
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229
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230 startup();
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231 sock = create_udp_socket();
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232
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233 r = bind(sock, (struct sockaddr*) &addr, sizeof(addr));
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234 ASSERT_OK(r);
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235
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236 r = uv_udp_init(uv_default_loop(), &client);
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237 ASSERT_OK(r);
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238
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239 r = uv_udp_open(&client, sock);
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240 ASSERT_OK(r);
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241
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242 r = uv_udp_recv_start(&client, alloc_cb, recv_cb);
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243 ASSERT_OK(r);
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244
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245 uv_close((uv_handle_t*) &client, NULL);
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246 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
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247
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248 MAKE_VALGRIND_HAPPY(uv_default_loop());
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249 return 0;
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250 }
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251
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252 TEST_IMPL(udp_open_connect) {
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253 struct sockaddr_in addr;
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254 uv_buf_t buf = uv_buf_init("PING", 4);
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255 uv_udp_t client;
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256 uv_udp_t server;
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257 uv_os_sock_t sock;
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258 int r;
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259
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260 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
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261
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262 startup();
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263 sock = create_udp_socket();
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264
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265 r = uv_udp_init(uv_default_loop(), &client);
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266 ASSERT_OK(r);
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267
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268 r = connect(sock, (const struct sockaddr*) &addr, sizeof(addr));
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269 ASSERT_OK(r);
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270
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271 r = uv_udp_open(&client, sock);
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272 ASSERT_OK(r);
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273
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274 r = uv_udp_init(uv_default_loop(), &server);
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275 ASSERT_OK(r);
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276
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277 r = uv_udp_bind(&server, (const struct sockaddr*) &addr, 0);
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278 ASSERT_OK(r);
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279
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280 r = uv_udp_recv_start(&server, alloc_cb, recv_cb);
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281 ASSERT_OK(r);
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282
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283 r = uv_udp_send(&send_req,
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284 &client,
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285 &buf,
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286 1,
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287 NULL,
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288 send_cb);
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289 ASSERT_OK(r);
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290
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291 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
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292
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293 ASSERT_EQ(1, send_cb_called);
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294 ASSERT_EQ(2, close_cb_called);
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295
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296 ASSERT_OK(client.send_queue_size);
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297
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298 MAKE_VALGRIND_HAPPY(uv_default_loop());
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299 return 0;
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300 }
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301
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302 #ifndef _WIN32
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303 TEST_IMPL(udp_send_unix) {
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304 /* Test that "uv_udp_send()" supports sending over
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305 a "sockaddr_un" address. */
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306 struct sockaddr_un addr;
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307 uv_udp_t handle;
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308 uv_udp_send_t req;
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309 uv_loop_t* loop;
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310 uv_buf_t buf = uv_buf_init("PING", 4);
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311 int fd;
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312 int r;
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313
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314 loop = uv_default_loop();
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315
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316 memset(&addr, 0, sizeof addr);
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317 addr.sun_family = AF_UNIX;
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318 ASSERT_LT(strlen(TEST_PIPENAME), sizeof(addr.sun_path));
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319 memcpy(addr.sun_path, TEST_PIPENAME, strlen(TEST_PIPENAME));
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320
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321 fd = socket(AF_UNIX, SOCK_STREAM, 0);
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322 ASSERT_GE(fd, 0);
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323
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324 unlink(TEST_PIPENAME);
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325 ASSERT_OK(bind(fd, (const struct sockaddr*)&addr, sizeof addr));
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326 ASSERT_OK(listen(fd, 1));
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327
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328 r = uv_udp_init(loop, &handle);
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329 ASSERT_OK(r);
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330 r = uv_udp_open(&handle, fd);
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331 ASSERT_OK(r);
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332 uv_run(loop, UV_RUN_DEFAULT);
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333
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334 r = uv_udp_send(&req,
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335 &handle,
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336 &buf,
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337 1,
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338 (const struct sockaddr*) &addr,
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339 NULL);
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340 ASSERT_OK(r);
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341
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342 uv_close((uv_handle_t*)&handle, NULL);
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343 uv_run(loop, UV_RUN_DEFAULT);
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344 close(fd);
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345 unlink(TEST_PIPENAME);
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346
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347 MAKE_VALGRIND_HAPPY(loop);
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348 return 0;
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349 }
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350 #endif
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