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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
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25 #include <stdio.h>
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26 #include <stdlib.h>
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27 #include <string.h>
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28
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29 #define CHECK_HANDLE(handle) \
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30 ASSERT_NE((uv_udp_t*)(handle) == &client || (uv_udp_t*)(handle) == &client2, 0)
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31
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32 static uv_udp_t client;
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33 static uv_udp_t client2;
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34 static uv_timer_t timer;
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35
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36 static int send_cb_called;
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37 static int recv_cb_called;
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38 static int close_cb_called;
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39 static int alloc_cb_called;
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40 static int timer_cb_called;
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41 static int can_recverr;
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42
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43
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44 static void alloc_cb(uv_handle_t* handle,
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45 size_t suggested_size,
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46 uv_buf_t* buf) {
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47 static char slab[65536];
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48 CHECK_HANDLE(handle);
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49 ASSERT_LE(suggested_size, sizeof(slab));
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50 buf->base = slab;
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51 buf->len = sizeof(slab);
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52 alloc_cb_called++;
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53 }
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54
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55
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56 static void close_cb(uv_handle_t* handle) {
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57 ASSERT_EQ(1, uv_is_closing(handle));
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58 close_cb_called++;
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59 }
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60
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61
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62 static void send_cb(uv_udp_send_t* req, int status) {
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63 ASSERT_NOT_NULL(req);
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64 ASSERT_OK(status);
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65 ASSERT_OK(status);
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66 CHECK_HANDLE(req->handle);
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67 send_cb_called++;
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68 }
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69
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70 static void send_cb_recverr(uv_udp_send_t* req, int status) {
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71 ASSERT_PTR_NE(req, NULL);
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72 ASSERT(status == 0 || status == UV_ECONNREFUSED);
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73 CHECK_HANDLE(req->handle);
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74 send_cb_called++;
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75 }
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76
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77 static void recv_cb(uv_udp_t* handle,
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78 ssize_t nread,
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79 const uv_buf_t* rcvbuf,
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80 const struct sockaddr* addr,
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81 unsigned flags) {
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82 CHECK_HANDLE(handle);
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83 recv_cb_called++;
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84
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85 if (nread < 0) {
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86 ASSERT(0 && "unexpected error");
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87 } else if (nread == 0) {
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88 /* Returning unused buffer */
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89 ASSERT_NULL(addr);
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90 } else {
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91 ASSERT_NOT_NULL(addr);
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92 }
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93 }
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94
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95
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96 static void timer_cb(uv_timer_t* h) {
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97 ASSERT_PTR_EQ(h, &timer);
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98 timer_cb_called++;
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99 uv_close((uv_handle_t*) &client, close_cb);
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100 if (can_recverr)
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101 uv_close((uv_handle_t*) &client2, close_cb);
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102 uv_close((uv_handle_t*) h, close_cb);
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103 }
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104
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105
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106 TEST_IMPL(udp_send_unreachable) {
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107 struct sockaddr_in addr;
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108 struct sockaddr_in addr2;
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109 struct sockaddr_in addr3;
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110 uv_udp_send_t req1, req2, req3, req4;
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111 uv_buf_t buf;
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112 int r;
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113
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114 #ifdef __linux__
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115 can_recverr = 1;
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116 #endif
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117
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118 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
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119 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT_2, &addr2));
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120 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT_3, &addr3));
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121
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122 r = uv_timer_init( uv_default_loop(), &timer );
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123 ASSERT_OK(r);
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124
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125 r = uv_timer_start( &timer, timer_cb, 1000, 0 );
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126 ASSERT_OK(r);
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127
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128 r = uv_udp_init(uv_default_loop(), &client);
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129 ASSERT_OK(r);
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130
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131 r = uv_udp_bind(&client, (const struct sockaddr*) &addr2, 0);
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132 ASSERT_OK(r);
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133
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134 r = uv_udp_recv_start(&client, alloc_cb, recv_cb);
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135 ASSERT_OK(r);
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136
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137 /* client sends "PING", then "PANG" */
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138 buf = uv_buf_init("PING", 4);
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139
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140 r = uv_udp_send(&req1,
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141 &client,
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142 &buf,
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143 1,
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144 (const struct sockaddr*) &addr,
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145 send_cb);
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146 ASSERT_OK(r);
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147
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148 buf = uv_buf_init("PANG", 4);
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149
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150 r = uv_udp_send(&req2,
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151 &client,
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152 &buf,
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153 1,
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154 (const struct sockaddr*) &addr,
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155 send_cb);
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156 ASSERT_OK(r);
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157
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158 if (can_recverr) {
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159 r = uv_udp_init(uv_default_loop(), &client2);
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160 ASSERT_OK(r);
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161
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162 r = uv_udp_bind(&client2,
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163 (const struct sockaddr*) &addr3,
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164 UV_UDP_LINUX_RECVERR);
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165 ASSERT_OK(r);
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166
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167 r = uv_udp_recv_start(&client2, alloc_cb, recv_cb);
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168 ASSERT_OK(r);
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169
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170 /* client sends "PING", then "PANG" */
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171 buf = uv_buf_init("PING", 4);
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172
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173 r = uv_udp_send(&req3,
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174 &client2,
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175 &buf,
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176 1,
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177 (const struct sockaddr*) &addr,
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178 send_cb_recverr);
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179 ASSERT_OK(r);
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180
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181 buf = uv_buf_init("PANG", 4);
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182
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183 r = uv_udp_send(&req4,
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184 &client2,
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185 &buf,
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186 1,
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187 (const struct sockaddr*) &addr,
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188 send_cb_recverr);
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189 ASSERT_OK(r);
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190 }
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191
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192 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
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193
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194 ASSERT_EQ(send_cb_called, (long)(can_recverr ? 4 : 2));
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195 ASSERT_EQ(recv_cb_called, alloc_cb_called);
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196 ASSERT_EQ(1, timer_cb_called);
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197 ASSERT_EQ(close_cb_called, (long)(can_recverr ? 3 : 2));
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198
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199 MAKE_VALGRIND_HAPPY(uv_default_loop());
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200 return 0;
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201 }
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