Mercurial > hg > nginx
annotate src/event/ngx_event_udp.c @ 7820:fdc3d40979b0
Introduced the "keepalive_time" directive.
Similar to lingering_time, it limits total connection lifetime before
keepalive is switched off. The default is 1 hour, which is close to
the total maximum connection lifetime possible with default
keepalive_requests and keepalive_timeout.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Thu, 08 Apr 2021 00:15:48 +0300 |
| parents | 6d4bc025c5a7 |
| children | 0f6cc8f73744 7f95010f10b7 |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Roman Arutyunyan |
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4 * Copyright (C) Nginx, Inc. |
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5 */ |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
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11 |
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12 |
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13 #if !(NGX_WIN32) |
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14 |
| 7286 | 15 struct ngx_udp_connection_s { |
| 16 ngx_rbtree_node_t node; | |
| 17 ngx_connection_t *connection; | |
| 18 ngx_buf_t *buffer; | |
| 19 }; | |
| 20 | |
| 21 | |
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22 static void ngx_close_accepted_udp_connection(ngx_connection_t *c); |
| 7286 | 23 static ssize_t ngx_udp_shared_recv(ngx_connection_t *c, u_char *buf, |
| 24 size_t size); | |
| 25 static ngx_int_t ngx_insert_udp_connection(ngx_connection_t *c); | |
| 26 static ngx_connection_t *ngx_lookup_udp_connection(ngx_listening_t *ls, | |
| 27 struct sockaddr *sockaddr, socklen_t socklen, | |
| 28 struct sockaddr *local_sockaddr, socklen_t local_socklen); | |
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29 |
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30 |
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31 void |
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32 ngx_event_recvmsg(ngx_event_t *ev) |
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33 { |
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34 ssize_t n; |
| 7286 | 35 ngx_buf_t buf; |
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36 ngx_log_t *log; |
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37 ngx_err_t err; |
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38 socklen_t socklen, local_socklen; |
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39 ngx_event_t *rev, *wev; |
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40 struct iovec iov[1]; |
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41 struct msghdr msg; |
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42 ngx_sockaddr_t sa, lsa; |
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43 struct sockaddr *sockaddr, *local_sockaddr; |
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44 ngx_listening_t *ls; |
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45 ngx_event_conf_t *ecf; |
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46 ngx_connection_t *c, *lc; |
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47 static u_char buffer[65535]; |
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48 |
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49 #if (NGX_HAVE_MSGHDR_MSG_CONTROL) |
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50 |
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51 #if (NGX_HAVE_IP_RECVDSTADDR) |
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52 u_char msg_control[CMSG_SPACE(sizeof(struct in_addr))]; |
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53 #elif (NGX_HAVE_IP_PKTINFO) |
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54 u_char msg_control[CMSG_SPACE(sizeof(struct in_pktinfo))]; |
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55 #endif |
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56 |
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57 #if (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO) |
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58 u_char msg_control6[CMSG_SPACE(sizeof(struct in6_pktinfo))]; |
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59 #endif |
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60 |
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61 #endif |
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62 |
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63 if (ev->timedout) { |
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64 if (ngx_enable_accept_events((ngx_cycle_t *) ngx_cycle) != NGX_OK) { |
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65 return; |
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66 } |
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67 |
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68 ev->timedout = 0; |
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69 } |
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70 |
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71 ecf = ngx_event_get_conf(ngx_cycle->conf_ctx, ngx_event_core_module); |
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72 |
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73 if (!(ngx_event_flags & NGX_USE_KQUEUE_EVENT)) { |
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74 ev->available = ecf->multi_accept; |
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75 } |
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76 |
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77 lc = ev->data; |
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78 ls = lc->listening; |
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79 ev->ready = 0; |
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80 |
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81 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
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82 "recvmsg on %V, ready: %d", &ls->addr_text, ev->available); |
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83 |
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84 do { |
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85 ngx_memzero(&msg, sizeof(struct msghdr)); |
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86 |
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87 iov[0].iov_base = (void *) buffer; |
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88 iov[0].iov_len = sizeof(buffer); |
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89 |
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90 msg.msg_name = &sa; |
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91 msg.msg_namelen = sizeof(ngx_sockaddr_t); |
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92 msg.msg_iov = iov; |
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93 msg.msg_iovlen = 1; |
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94 |
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95 #if (NGX_HAVE_MSGHDR_MSG_CONTROL) |
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96 |
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97 if (ls->wildcard) { |
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98 |
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99 #if (NGX_HAVE_IP_RECVDSTADDR || NGX_HAVE_IP_PKTINFO) |
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100 if (ls->sockaddr->sa_family == AF_INET) { |
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101 msg.msg_control = &msg_control; |
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102 msg.msg_controllen = sizeof(msg_control); |
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103 } |
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104 #endif |
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105 |
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106 #if (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO) |
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107 if (ls->sockaddr->sa_family == AF_INET6) { |
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108 msg.msg_control = &msg_control6; |
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109 msg.msg_controllen = sizeof(msg_control6); |
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110 } |
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111 #endif |
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112 } |
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113 |
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114 #endif |
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115 |
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116 n = recvmsg(lc->fd, &msg, 0); |
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117 |
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118 if (n == -1) { |
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119 err = ngx_socket_errno; |
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120 |
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121 if (err == NGX_EAGAIN) { |
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122 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, err, |
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123 "recvmsg() not ready"); |
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124 return; |
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125 } |
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126 |
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127 ngx_log_error(NGX_LOG_ALERT, ev->log, err, "recvmsg() failed"); |
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128 |
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129 return; |
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130 } |
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131 |
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132 #if (NGX_HAVE_MSGHDR_MSG_CONTROL) |
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133 if (msg.msg_flags & (MSG_TRUNC|MSG_CTRUNC)) { |
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134 ngx_log_error(NGX_LOG_ALERT, ev->log, 0, |
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135 "recvmsg() truncated data"); |
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136 continue; |
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137 } |
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138 #endif |
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139 |
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140 sockaddr = msg.msg_name; |
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141 socklen = msg.msg_namelen; |
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142 |
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143 if (socklen > (socklen_t) sizeof(ngx_sockaddr_t)) { |
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144 socklen = sizeof(ngx_sockaddr_t); |
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145 } |
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146 |
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147 if (socklen == 0) { |
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148 |
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149 /* |
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150 * on Linux recvmsg() returns zero msg_namelen |
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151 * when receiving packets from unbound AF_UNIX sockets |
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152 */ |
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153 |
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154 socklen = sizeof(struct sockaddr); |
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155 ngx_memzero(&sa, sizeof(struct sockaddr)); |
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156 sa.sockaddr.sa_family = ls->sockaddr->sa_family; |
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157 } |
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158 |
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159 local_sockaddr = ls->sockaddr; |
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160 local_socklen = ls->socklen; |
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161 |
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162 #if (NGX_HAVE_MSGHDR_MSG_CONTROL) |
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163 |
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164 if (ls->wildcard) { |
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165 struct cmsghdr *cmsg; |
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166 |
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167 ngx_memcpy(&lsa, local_sockaddr, local_socklen); |
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168 local_sockaddr = &lsa.sockaddr; |
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169 |
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170 for (cmsg = CMSG_FIRSTHDR(&msg); |
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171 cmsg != NULL; |
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172 cmsg = CMSG_NXTHDR(&msg, cmsg)) |
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173 { |
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174 |
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175 #if (NGX_HAVE_IP_RECVDSTADDR) |
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176 |
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177 if (cmsg->cmsg_level == IPPROTO_IP |
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178 && cmsg->cmsg_type == IP_RECVDSTADDR |
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179 && local_sockaddr->sa_family == AF_INET) |
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180 { |
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181 struct in_addr *addr; |
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182 struct sockaddr_in *sin; |
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183 |
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184 addr = (struct in_addr *) CMSG_DATA(cmsg); |
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185 sin = (struct sockaddr_in *) local_sockaddr; |
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186 sin->sin_addr = *addr; |
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187 |
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188 break; |
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189 } |
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190 |
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191 #elif (NGX_HAVE_IP_PKTINFO) |
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192 |
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193 if (cmsg->cmsg_level == IPPROTO_IP |
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194 && cmsg->cmsg_type == IP_PKTINFO |
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195 && local_sockaddr->sa_family == AF_INET) |
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196 { |
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197 struct in_pktinfo *pkt; |
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198 struct sockaddr_in *sin; |
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199 |
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200 pkt = (struct in_pktinfo *) CMSG_DATA(cmsg); |
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201 sin = (struct sockaddr_in *) local_sockaddr; |
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202 sin->sin_addr = pkt->ipi_addr; |
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203 |
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204 break; |
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205 } |
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206 |
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207 #endif |
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208 |
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209 #if (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO) |
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210 |
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211 if (cmsg->cmsg_level == IPPROTO_IPV6 |
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212 && cmsg->cmsg_type == IPV6_PKTINFO |
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213 && local_sockaddr->sa_family == AF_INET6) |
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214 { |
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215 struct in6_pktinfo *pkt6; |
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216 struct sockaddr_in6 *sin6; |
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217 |
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218 pkt6 = (struct in6_pktinfo *) CMSG_DATA(cmsg); |
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219 sin6 = (struct sockaddr_in6 *) local_sockaddr; |
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220 sin6->sin6_addr = pkt6->ipi6_addr; |
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221 |
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222 break; |
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223 } |
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224 |
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225 #endif |
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226 |
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227 } |
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228 } |
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229 |
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230 #endif |
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231 |
| 7286 | 232 c = ngx_lookup_udp_connection(ls, sockaddr, socklen, local_sockaddr, |
| 233 local_socklen); | |
| 234 | |
| 235 if (c) { | |
| 236 | |
| 237 #if (NGX_DEBUG) | |
| 238 if (c->log->log_level & NGX_LOG_DEBUG_EVENT) { | |
| 239 ngx_log_handler_pt handler; | |
| 240 | |
| 241 handler = c->log->handler; | |
| 242 c->log->handler = NULL; | |
| 243 | |
| 244 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
| 245 "recvmsg: fd:%d n:%z", c->fd, n); | |
| 246 | |
| 247 c->log->handler = handler; | |
| 248 } | |
| 249 #endif | |
| 250 | |
| 251 ngx_memzero(&buf, sizeof(ngx_buf_t)); | |
| 252 | |
| 253 buf.pos = buffer; | |
| 254 buf.last = buffer + n; | |
| 255 | |
| 256 rev = c->read; | |
| 257 | |
| 258 c->udp->buffer = &buf; | |
|
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259 |
| 7286 | 260 rev->ready = 1; |
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261 rev->active = 0; |
| 7286 | 262 |
| 263 rev->handler(rev); | |
| 264 | |
|
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265 if (c->udp) { |
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266 c->udp->buffer = NULL; |
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267 } |
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268 |
| 7286 | 269 rev->ready = 0; |
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270 rev->active = 1; |
| 7286 | 271 |
| 272 goto next; | |
| 273 } | |
| 274 | |
|
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275 #if (NGX_STAT_STUB) |
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276 (void) ngx_atomic_fetch_add(ngx_stat_accepted, 1); |
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277 #endif |
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278 |
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279 ngx_accept_disabled = ngx_cycle->connection_n / 8 |
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280 - ngx_cycle->free_connection_n; |
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281 |
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282 c = ngx_get_connection(lc->fd, ev->log); |
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283 if (c == NULL) { |
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284 return; |
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285 } |
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286 |
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287 c->shared = 1; |
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288 c->type = SOCK_DGRAM; |
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289 c->socklen = socklen; |
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290 |
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291 #if (NGX_STAT_STUB) |
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292 (void) ngx_atomic_fetch_add(ngx_stat_active, 1); |
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293 #endif |
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294 |
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295 c->pool = ngx_create_pool(ls->pool_size, ev->log); |
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296 if (c->pool == NULL) { |
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297 ngx_close_accepted_udp_connection(c); |
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298 return; |
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299 } |
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300 |
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301 c->sockaddr = ngx_palloc(c->pool, socklen); |
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302 if (c->sockaddr == NULL) { |
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303 ngx_close_accepted_udp_connection(c); |
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304 return; |
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305 } |
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306 |
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307 ngx_memcpy(c->sockaddr, sockaddr, socklen); |
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308 |
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309 log = ngx_palloc(c->pool, sizeof(ngx_log_t)); |
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310 if (log == NULL) { |
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311 ngx_close_accepted_udp_connection(c); |
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312 return; |
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313 } |
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314 |
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315 *log = ls->log; |
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316 |
| 7286 | 317 c->recv = ngx_udp_shared_recv; |
|
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318 c->send = ngx_udp_send; |
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319 c->send_chain = ngx_udp_send_chain; |
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320 |
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321 c->log = log; |
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322 c->pool->log = log; |
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323 c->listening = ls; |
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324 |
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325 if (local_sockaddr == &lsa.sockaddr) { |
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326 local_sockaddr = ngx_palloc(c->pool, local_socklen); |
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327 if (local_sockaddr == NULL) { |
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328 ngx_close_accepted_udp_connection(c); |
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329 return; |
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330 } |
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331 |
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332 ngx_memcpy(local_sockaddr, &lsa, local_socklen); |
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333 } |
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334 |
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335 c->local_sockaddr = local_sockaddr; |
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336 c->local_socklen = local_socklen; |
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337 |
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338 c->buffer = ngx_create_temp_buf(c->pool, n); |
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339 if (c->buffer == NULL) { |
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340 ngx_close_accepted_udp_connection(c); |
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341 return; |
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342 } |
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343 |
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344 c->buffer->last = ngx_cpymem(c->buffer->last, buffer, n); |
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345 |
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346 rev = c->read; |
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347 wev = c->write; |
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348 |
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349 rev->active = 1; |
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350 wev->ready = 1; |
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351 |
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352 rev->log = log; |
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353 wev->log = log; |
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354 |
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355 /* |
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356 * TODO: MT: - ngx_atomic_fetch_add() |
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357 * or protection by critical section or light mutex |
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358 * |
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359 * TODO: MP: - allocated in a shared memory |
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360 * - ngx_atomic_fetch_add() |
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361 * or protection by critical section or light mutex |
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362 */ |
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363 |
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364 c->number = ngx_atomic_fetch_add(ngx_connection_counter, 1); |
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365 |
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366 c->start_time = ngx_current_msec; |
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367 |
|
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368 #if (NGX_STAT_STUB) |
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369 (void) ngx_atomic_fetch_add(ngx_stat_handled, 1); |
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370 #endif |
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371 |
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372 if (ls->addr_ntop) { |
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373 c->addr_text.data = ngx_pnalloc(c->pool, ls->addr_text_max_len); |
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374 if (c->addr_text.data == NULL) { |
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375 ngx_close_accepted_udp_connection(c); |
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376 return; |
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377 } |
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378 |
|
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379 c->addr_text.len = ngx_sock_ntop(c->sockaddr, c->socklen, |
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380 c->addr_text.data, |
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381 ls->addr_text_max_len, 0); |
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382 if (c->addr_text.len == 0) { |
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383 ngx_close_accepted_udp_connection(c); |
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384 return; |
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385 } |
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386 } |
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387 |
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388 #if (NGX_DEBUG) |
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389 { |
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390 ngx_str_t addr; |
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391 u_char text[NGX_SOCKADDR_STRLEN]; |
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392 |
|
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393 ngx_debug_accepted_connection(ecf, c); |
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394 |
|
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395 if (log->log_level & NGX_LOG_DEBUG_EVENT) { |
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396 addr.data = text; |
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397 addr.len = ngx_sock_ntop(c->sockaddr, c->socklen, text, |
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398 NGX_SOCKADDR_STRLEN, 1); |
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|
399 |
|
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|
400 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, log, 0, |
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|
401 "*%uA recvmsg: %V fd:%d n:%z", |
|
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|
402 c->number, &addr, c->fd, n); |
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|
403 } |
|
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|
404 |
|
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Events: moved ngx_recvmsg() to new file src/event/ngx_event_udp.c.
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|
405 } |
|
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|
406 #endif |
|
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|
407 |
| 7286 | 408 if (ngx_insert_udp_connection(c) != NGX_OK) { |
| 409 ngx_close_accepted_udp_connection(c); | |
| 410 return; | |
| 411 } | |
| 412 | |
|
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|
413 log->data = NULL; |
|
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|
414 log->handler = NULL; |
|
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|
415 |
|
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|
416 ls->handler(c); |
|
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|
417 |
| 7286 | 418 next: |
| 419 | |
|
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|
420 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
|
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|
421 ev->available -= n; |
|
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|
422 } |
|
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|
423 |
|
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|
424 } while (ev->available); |
|
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|
425 } |
|
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|
426 |
|
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Events: moved ngx_recvmsg() to new file src/event/ngx_event_udp.c.
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|
427 |
|
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|
428 static void |
|
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|
429 ngx_close_accepted_udp_connection(ngx_connection_t *c) |
|
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430 { |
|
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|
431 ngx_free_connection(c); |
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432 |
|
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433 c->fd = (ngx_socket_t) -1; |
|
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|
434 |
|
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Events: moved ngx_recvmsg() to new file src/event/ngx_event_udp.c.
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|
435 if (c->pool) { |
|
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|
436 ngx_destroy_pool(c->pool); |
|
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|
437 } |
|
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438 |
|
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Events: moved ngx_recvmsg() to new file src/event/ngx_event_udp.c.
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|
439 #if (NGX_STAT_STUB) |
|
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|
440 (void) ngx_atomic_fetch_add(ngx_stat_active, -1); |
|
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|
441 #endif |
|
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442 } |
|
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|
443 |
| 7286 | 444 |
| 445 static ssize_t | |
| 446 ngx_udp_shared_recv(ngx_connection_t *c, u_char *buf, size_t size) | |
| 447 { | |
| 448 ssize_t n; | |
| 449 ngx_buf_t *b; | |
| 450 | |
| 451 if (c->udp == NULL || c->udp->buffer == NULL) { | |
| 452 return NGX_AGAIN; | |
| 453 } | |
| 454 | |
| 455 b = c->udp->buffer; | |
| 456 | |
| 457 n = ngx_min(b->last - b->pos, (ssize_t) size); | |
| 458 | |
| 459 ngx_memcpy(buf, b->pos, n); | |
| 460 | |
| 461 c->udp->buffer = NULL; | |
|
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|
462 |
| 7286 | 463 c->read->ready = 0; |
|
7440
6d4bc025c5a7
Prevented scheduling events on a shared connection.
Roman Arutyunyan <arut@nginx.com>
parents:
7393
diff
changeset
|
464 c->read->active = 1; |
| 7286 | 465 |
| 466 return n; | |
| 467 } | |
| 468 | |
| 469 | |
| 470 void | |
| 471 ngx_udp_rbtree_insert_value(ngx_rbtree_node_t *temp, | |
| 472 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel) | |
| 473 { | |
| 474 ngx_int_t rc; | |
| 475 ngx_connection_t *c, *ct; | |
| 476 ngx_rbtree_node_t **p; | |
| 477 ngx_udp_connection_t *udp, *udpt; | |
| 478 | |
| 479 for ( ;; ) { | |
| 480 | |
| 481 if (node->key < temp->key) { | |
| 482 | |
| 483 p = &temp->left; | |
| 484 | |
| 485 } else if (node->key > temp->key) { | |
| 486 | |
| 487 p = &temp->right; | |
| 488 | |
| 489 } else { /* node->key == temp->key */ | |
| 490 | |
| 491 udp = (ngx_udp_connection_t *) node; | |
| 492 c = udp->connection; | |
| 493 | |
| 494 udpt = (ngx_udp_connection_t *) temp; | |
| 495 ct = udpt->connection; | |
| 496 | |
| 497 rc = ngx_cmp_sockaddr(c->sockaddr, c->socklen, | |
| 498 ct->sockaddr, ct->socklen, 1); | |
| 499 | |
| 500 if (rc == 0 && c->listening->wildcard) { | |
| 501 rc = ngx_cmp_sockaddr(c->local_sockaddr, c->local_socklen, | |
| 502 ct->local_sockaddr, ct->local_socklen, 1); | |
| 503 } | |
| 504 | |
| 505 p = (rc < 0) ? &temp->left : &temp->right; | |
| 506 } | |
| 507 | |
| 508 if (*p == sentinel) { | |
| 509 break; | |
| 510 } | |
| 511 | |
| 512 temp = *p; | |
| 513 } | |
| 514 | |
| 515 *p = node; | |
| 516 node->parent = temp; | |
| 517 node->left = sentinel; | |
| 518 node->right = sentinel; | |
| 519 ngx_rbt_red(node); | |
| 520 } | |
| 521 | |
| 522 | |
| 523 static ngx_int_t | |
| 524 ngx_insert_udp_connection(ngx_connection_t *c) | |
| 525 { | |
| 526 uint32_t hash; | |
| 527 ngx_pool_cleanup_t *cln; | |
| 528 ngx_udp_connection_t *udp; | |
| 529 | |
| 530 if (c->udp) { | |
| 531 return NGX_OK; | |
| 532 } | |
| 533 | |
| 534 udp = ngx_pcalloc(c->pool, sizeof(ngx_udp_connection_t)); | |
| 535 if (udp == NULL) { | |
| 536 return NGX_ERROR; | |
| 537 } | |
| 538 | |
| 539 udp->connection = c; | |
| 540 | |
| 541 ngx_crc32_init(hash); | |
| 542 ngx_crc32_update(&hash, (u_char *) c->sockaddr, c->socklen); | |
| 543 | |
| 544 if (c->listening->wildcard) { | |
| 545 ngx_crc32_update(&hash, (u_char *) c->local_sockaddr, c->local_socklen); | |
| 546 } | |
| 547 | |
| 548 ngx_crc32_final(hash); | |
| 549 | |
| 550 udp->node.key = hash; | |
| 551 | |
| 552 cln = ngx_pool_cleanup_add(c->pool, 0); | |
| 553 if (cln == NULL) { | |
| 554 return NGX_ERROR; | |
| 555 } | |
| 556 | |
| 557 cln->data = c; | |
| 558 cln->handler = ngx_delete_udp_connection; | |
| 559 | |
| 560 ngx_rbtree_insert(&c->listening->rbtree, &udp->node); | |
| 561 | |
| 562 c->udp = udp; | |
| 563 | |
| 564 return NGX_OK; | |
| 565 } | |
| 566 | |
| 567 | |
|
7393
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
568 void |
| 7286 | 569 ngx_delete_udp_connection(void *data) |
| 570 { | |
| 571 ngx_connection_t *c = data; | |
| 572 | |
|
7393
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
573 if (c->udp == NULL) { |
|
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
574 return; |
|
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
575 } |
|
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
576 |
| 7286 | 577 ngx_rbtree_delete(&c->listening->rbtree, &c->udp->node); |
|
7391
27559d4a5151
Stream: fixed possible use of a freed connection.
Vladimir Homutov <vl@nginx.com>
parents:
7286
diff
changeset
|
578 |
|
27559d4a5151
Stream: fixed possible use of a freed connection.
Vladimir Homutov <vl@nginx.com>
parents:
7286
diff
changeset
|
579 c->udp = NULL; |
| 7286 | 580 } |
| 581 | |
| 582 | |
| 583 static ngx_connection_t * | |
| 584 ngx_lookup_udp_connection(ngx_listening_t *ls, struct sockaddr *sockaddr, | |
| 585 socklen_t socklen, struct sockaddr *local_sockaddr, socklen_t local_socklen) | |
| 586 { | |
| 587 uint32_t hash; | |
| 588 ngx_int_t rc; | |
| 589 ngx_connection_t *c; | |
| 590 ngx_rbtree_node_t *node, *sentinel; | |
| 591 ngx_udp_connection_t *udp; | |
| 592 | |
| 593 #if (NGX_HAVE_UNIX_DOMAIN) | |
| 594 | |
| 595 if (sockaddr->sa_family == AF_UNIX) { | |
| 596 struct sockaddr_un *saun = (struct sockaddr_un *) sockaddr; | |
| 597 | |
| 598 if (socklen <= (socklen_t) offsetof(struct sockaddr_un, sun_path) | |
| 599 || saun->sun_path[0] == '\0') | |
| 600 { | |
| 601 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0, | |
| 602 "unbound unix socket"); | |
| 603 return NULL; | |
| 604 } | |
| 605 } | |
| 606 | |
|
7285
88a624c9b491
Events: moved ngx_recvmsg() to new file src/event/ngx_event_udp.c.
Roman Arutyunyan <arut@nginx.com>
parents:
diff
changeset
|
607 #endif |
| 7286 | 608 |
| 609 node = ls->rbtree.root; | |
| 610 sentinel = ls->rbtree.sentinel; | |
| 611 | |
| 612 ngx_crc32_init(hash); | |
| 613 ngx_crc32_update(&hash, (u_char *) sockaddr, socklen); | |
| 614 | |
| 615 if (ls->wildcard) { | |
| 616 ngx_crc32_update(&hash, (u_char *) local_sockaddr, local_socklen); | |
| 617 } | |
| 618 | |
| 619 ngx_crc32_final(hash); | |
| 620 | |
| 621 while (node != sentinel) { | |
| 622 | |
| 623 if (hash < node->key) { | |
| 624 node = node->left; | |
| 625 continue; | |
| 626 } | |
| 627 | |
| 628 if (hash > node->key) { | |
| 629 node = node->right; | |
| 630 continue; | |
| 631 } | |
| 632 | |
| 633 /* hash == node->key */ | |
| 634 | |
| 635 udp = (ngx_udp_connection_t *) node; | |
| 636 | |
| 637 c = udp->connection; | |
| 638 | |
| 639 rc = ngx_cmp_sockaddr(sockaddr, socklen, | |
| 640 c->sockaddr, c->socklen, 1); | |
| 641 | |
| 642 if (rc == 0 && ls->wildcard) { | |
| 643 rc = ngx_cmp_sockaddr(local_sockaddr, local_socklen, | |
| 644 c->local_sockaddr, c->local_socklen, 1); | |
| 645 } | |
| 646 | |
| 647 if (rc == 0) { | |
| 648 return c; | |
| 649 } | |
| 650 | |
| 651 node = (rc < 0) ? node->left : node->right; | |
| 652 } | |
| 653 | |
| 654 return NULL; | |
| 655 } | |
| 656 | |
|
7393
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
657 #else |
|
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
658 |
|
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
659 void |
|
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
660 ngx_delete_udp_connection(void *data) |
|
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
661 { |
|
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
662 return; |
|
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
663 } |
|
4698cede59ff
Stream: proxy_requests directive.
Vladimir Homutov <vl@nginx.com>
parents:
7391
diff
changeset
|
664 |
| 7286 | 665 #endif |