0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10
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11
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12 ngx_os_io_t ngx_io;
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13
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14
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70
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15 ngx_listening_t *
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486
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16 ngx_create_listening(ngx_conf_t *cf, void *sockaddr, socklen_t socklen)
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0
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17 {
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538
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18 size_t len;
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486
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19 ngx_listening_t *ls;
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20 struct sockaddr *sa;
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21 u_char text[NGX_SOCKADDR_STRLEN];
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0
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22
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50
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23 ls = ngx_array_push(&cf->cycle->listening);
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24 if (ls == NULL) {
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0
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25 return NULL;
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26 }
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27
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28 ngx_memzero(ls, sizeof(ngx_listening_t));
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29
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486
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30 sa = ngx_palloc(cf->pool, socklen);
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31 if (sa == NULL) {
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0
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32 return NULL;
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33 }
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34
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486
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35 ngx_memcpy(sa, sockaddr, socklen);
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0
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36
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486
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37 ls->sockaddr = sa;
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38 ls->socklen = socklen;
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10
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39
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538
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40 len = ngx_sock_ntop(sa, text, NGX_SOCKADDR_STRLEN, 1);
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41 ls->addr_text.len = len;
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486
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42
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43 switch (ls->sockaddr->sa_family) {
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44 #if (NGX_HAVE_INET6)
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45 case AF_INET6:
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46 ls->addr_text_max_len = NGX_INET6_ADDRSTRLEN;
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47 break;
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48 #endif
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538
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49 #if (NGX_HAVE_UNIX_DOMAIN)
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50 case AF_UNIX:
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51 ls->addr_text_max_len = NGX_UNIX_ADDRSTRLEN;
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52 len++;
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53 break;
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54 #endif
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486
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55 case AF_INET:
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56 ls->addr_text_max_len = NGX_INET_ADDRSTRLEN;
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57 break;
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58 default:
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59 ls->addr_text_max_len = NGX_SOCKADDR_STRLEN;
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60 break;
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61 }
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62
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538
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63 ls->addr_text.data = ngx_pnalloc(cf->pool, len);
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64 if (ls->addr_text.data == NULL) {
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65 return NULL;
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66 }
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67
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68 ngx_memcpy(ls->addr_text.data, text, len);
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69
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70 ls->fd = (ngx_socket_t) -1;
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71 ls->type = SOCK_STREAM;
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72
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486
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73 ls->backlog = NGX_LISTEN_BACKLOG;
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74 ls->rcvbuf = -1;
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75 ls->sndbuf = -1;
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0
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76
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77 return ls;
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78 }
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79
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80
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70
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81 ngx_int_t
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82 ngx_set_inherited_sockets(ngx_cycle_t *cycle)
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0
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83 {
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72
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84 size_t len;
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85 ngx_uint_t i;
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86 ngx_listening_t *ls;
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112
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87 socklen_t olen;
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72
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88 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
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90
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89 ngx_err_t err;
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72
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90 struct accept_filter_arg af;
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91 #endif
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92 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
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93 int timeout;
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94 #endif
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0
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95
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96 ls = cycle->listening.elts;
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97 for (i = 0; i < cycle->listening.nelts; i++) {
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98
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99 /* AF_INET only */
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100
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101 ls[i].sockaddr = ngx_palloc(cycle->pool, sizeof(struct sockaddr_in));
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102 if (ls[i].sockaddr == NULL) {
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103 return NGX_ERROR;
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104 }
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105
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106 ls[i].socklen = sizeof(struct sockaddr_in);
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107 if (getsockname(ls[i].fd, ls[i].sockaddr, &ls[i].socklen) == -1) {
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108 ngx_log_error(NGX_LOG_CRIT, cycle->log, ngx_socket_errno,
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109 "getsockname() of the inherited "
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110 "socket #%d failed", ls[i].fd);
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111 ls[i].ignore = 1;
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112 continue;
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113 }
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114
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448
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115 switch (ls[i].sockaddr->sa_family) {
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0
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116
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448
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117 #if (NGX_HAVE_INET6)
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118 case AF_INET6:
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119 ls[i].addr_text_max_len = NGX_INET6_ADDRSTRLEN;
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542
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120 len = NGX_INET6_ADDRSTRLEN + sizeof(":65535") - 1;
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121 break;
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122 #endif
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123
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124 #if (NGX_HAVE_UNIX_DOMAIN)
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125 case AF_UNIX:
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126 ls[i].addr_text_max_len = NGX_UNIX_ADDRSTRLEN;
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127 len = NGX_UNIX_ADDRSTRLEN;
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448
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128 break;
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129 #endif
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130
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131 case AF_INET:
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132 ls[i].addr_text_max_len = NGX_INET_ADDRSTRLEN;
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542
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133 len = NGX_INET_ADDRSTRLEN + sizeof(":65535") - 1;
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448
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134 break;
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135
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136 default:
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0
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137 ngx_log_error(NGX_LOG_CRIT, cycle->log, ngx_socket_errno,
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138 "the inherited socket #%d has "
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448
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139 "an unsupported protocol family", ls[i].fd);
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0
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140 ls[i].ignore = 1;
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141 continue;
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142 }
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10
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143
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448
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144 ls[i].addr_text.data = ngx_pnalloc(cycle->pool, len);
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0
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145 if (ls[i].addr_text.data == NULL) {
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146 return NGX_ERROR;
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147 }
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148
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448
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149 len = ngx_sock_ntop(ls[i].sockaddr, ls[i].addr_text.data, len, 1);
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10
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150 if (len == 0) {
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0
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151 return NGX_ERROR;
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152 }
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10
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153
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448
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154 ls[i].addr_text.len = len;
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72
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155
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326
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156 ls[i].backlog = NGX_LISTEN_BACKLOG;
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86
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157
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112
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158 olen = sizeof(int);
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159
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160 if (getsockopt(ls[i].fd, SOL_SOCKET, SO_RCVBUF, (void *) &ls[i].rcvbuf,
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161 &olen)
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162 == -1)
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163 {
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164 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
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165 "getsockopt(SO_RCVBUF) %V failed, ignored",
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166 &ls[i].addr_text);
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167
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168 ls[i].rcvbuf = -1;
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169 }
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170
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171 olen = sizeof(int);
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172
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173 if (getsockopt(ls[i].fd, SOL_SOCKET, SO_SNDBUF, (void *) &ls[i].sndbuf,
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174 &olen)
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175 == -1)
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176 {
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177 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
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178 "getsockopt(SO_SNDBUF) %V failed, ignored",
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179 &ls[i].addr_text);
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180
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181 ls[i].sndbuf = -1;
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182 }
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183
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72
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184 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
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185
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186 ngx_memzero(&af, sizeof(struct accept_filter_arg));
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112
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187 olen = sizeof(struct accept_filter_arg);
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72
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188
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112
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189 if (getsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER, &af, &olen)
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72
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190 == -1)
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191 {
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90
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192 err = ngx_errno;
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193
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194 if (err == NGX_EINVAL) {
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195 continue;
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196 }
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197
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198 ngx_log_error(NGX_LOG_NOTICE, cycle->log, err,
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72
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199 "getsockopt(SO_ACCEPTFILTER) for %V failed, ignored",
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200 &ls[i].addr_text);
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201 continue;
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202 }
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203
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112
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204 if (olen < sizeof(struct accept_filter_arg) || af.af_name[0] == '\0') {
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72
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205 continue;
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206 }
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207
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208 ls[i].accept_filter = ngx_palloc(cycle->pool, 16);
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209 if (ls[i].accept_filter == NULL) {
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210 return NGX_ERROR;
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211 }
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212
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213 (void) ngx_cpystrn((u_char *) ls[i].accept_filter,
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214 (u_char *) af.af_name, 16);
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215 #endif
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216
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217 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
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218
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219 timeout = 0;
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112
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220 olen = sizeof(int);
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72
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221
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112
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222 if (getsockopt(ls[i].fd, IPPROTO_TCP, TCP_DEFER_ACCEPT, &timeout, &olen)
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72
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223 == -1)
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224 {
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225 ngx_log_error(NGX_LOG_NOTICE, cycle->log, ngx_errno,
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226 "getsockopt(TCP_DEFER_ACCEPT) for %V failed, ignored",
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227 &ls[i].addr_text);
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228 continue;
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229 }
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230
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114
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231 if (olen < sizeof(int) || timeout == 0) {
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72
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232 continue;
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233 }
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234
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235 ls[i].deferred_accept = 1;
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236 #endif
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0
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237 }
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238
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239 return NGX_OK;
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240 }
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241
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242
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70
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243 ngx_int_t
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244 ngx_open_listening_sockets(ngx_cycle_t *cycle)
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0
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245 {
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112
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246 int reuseaddr;
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247 ngx_uint_t i, tries, failed;
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0
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248 ngx_err_t err;
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249 ngx_log_t *log;
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250 ngx_socket_t s;
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251 ngx_listening_t *ls;
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252
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253 reuseaddr = 1;
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254 #if (NGX_SUPPRESS_WARN)
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255 failed = 0;
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256 #endif
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257
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258 log = cycle->log;
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259
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112
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260 /* TODO: configurable try number */
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0
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261
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378
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262 for (tries = 5; tries; tries--) {
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0
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263 failed = 0;
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264
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265 /* for each listening socket */
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266
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267 ls = cycle->listening.elts;
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268 for (i = 0; i < cycle->listening.nelts; i++) {
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269
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270 if (ls[i].ignore) {
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271 continue;
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272 }
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273
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274 if (ls[i].fd != -1) {
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275 continue;
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276 }
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277
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278 if (ls[i].inherited) {
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279
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280 /* TODO: close on exit */
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281 /* TODO: nonblocking */
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282 /* TODO: deferred accept */
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283
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284 continue;
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285 }
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286
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400
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287 s = ngx_socket(ls[i].sockaddr->sa_family, ls[i].type, 0);
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0
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288
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289 if (s == -1) {
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290 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
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10
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291 ngx_socket_n " %V failed", &ls[i].addr_text);
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0
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292 return NGX_ERROR;
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293 }
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294
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295 if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
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112
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296 (const void *) &reuseaddr, sizeof(int))
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297 == -1)
|
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298 {
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0
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299 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
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10
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300 "setsockopt(SO_REUSEADDR) %V failed",
|
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301 &ls[i].addr_text);
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112
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302
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306
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303 if (ngx_close_socket(s) == -1) {
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112
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304 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
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305 ngx_close_socket_n " %V failed",
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306 &ls[i].addr_text);
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306
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307 }
|
112
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308
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0
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309 return NGX_ERROR;
|
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310 }
|
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311
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460
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312 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
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313
|
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314 if (ls[i].sockaddr->sa_family == AF_INET6 && ls[i].ipv6only) {
|
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315 int ipv6only;
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316
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317 ipv6only = (ls[i].ipv6only == 1);
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318
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319 if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
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320 (const void *) &ipv6only, sizeof(int))
|
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321 == -1)
|
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322 {
|
486
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323 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
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460
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324 "setsockopt(IPV6_V6ONLY) %V failed, ignored",
|
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325 &ls[i].addr_text);
|
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326 }
|
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327 }
|
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328 #endif
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0
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329 /* TODO: close on exit */
|
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330
|
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331 if (!(ngx_event_flags & NGX_USE_AIO_EVENT)) {
|
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332 if (ngx_nonblocking(s) == -1) {
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333 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
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10
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334 ngx_nonblocking_n " %V failed",
|
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335 &ls[i].addr_text);
|
112
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336
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306
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337 if (ngx_close_socket(s) == -1) {
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112
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338 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
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339 ngx_close_socket_n " %V failed",
|
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340 &ls[i].addr_text);
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306
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341 }
|
112
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342
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0
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343 return NGX_ERROR;
|
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344 }
|
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345 }
|
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346
|
486
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347 ngx_log_debug2(NGX_LOG_DEBUG_CORE, log, 0,
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142
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348 "bind() %V #%d ", &ls[i].addr_text, s);
|
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349
|
0
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350 if (bind(s, ls[i].sockaddr, ls[i].socklen) == -1) {
|
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351 err = ngx_socket_errno;
|
112
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352
|
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353 if (err == NGX_EADDRINUSE && ngx_test_config) {
|
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354 continue;
|
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355 }
|
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356
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0
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357 ngx_log_error(NGX_LOG_EMERG, log, err,
|
10
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358 "bind() to %V failed", &ls[i].addr_text);
|
0
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359
|
306
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360 if (ngx_close_socket(s) == -1) {
|
0
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361 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
10
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362 ngx_close_socket_n " %V failed",
|
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363 &ls[i].addr_text);
|
306
|
364 }
|
0
|
365
|
112
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366 if (err != NGX_EADDRINUSE) {
|
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367 return NGX_ERROR;
|
|
368 }
|
|
369
|
0
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370 failed = 1;
|
112
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371
|
0
|
372 continue;
|
|
373 }
|
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374
|
540
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375 #if (NGX_HAVE_UNIX_DOMAIN)
|
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376
|
554
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377 if (ls[i].sockaddr->sa_family == AF_UNIX) {
|
|
378 mode_t mode;
|
|
379 u_char *name;
|
|
380
|
|
381 name = ls[i].addr_text.data + sizeof("unix:") - 1;
|
|
382 mode = (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
|
540
|
383
|
554
|
384 if (chmod((char *) name, mode) == -1) {
|
|
385 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
386 "chmod() \"%s\" failed", name);
|
|
387 }
|
|
388
|
|
389 if (ngx_test_config) {
|
|
390 if (ngx_delete_file(name) == -1) {
|
|
391 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
392 ngx_delete_file_n " %s failed", name);
|
|
393 }
|
540
|
394 }
|
|
395 }
|
|
396 #endif
|
|
397
|
306
|
398 if (listen(s, ls[i].backlog) == -1) {
|
|
399 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
400 "listen() to %V, backlog %d failed",
|
|
401 &ls[i].addr_text, ls[i].backlog);
|
|
402
|
|
403 if (ngx_close_socket(s) == -1) {
|
|
404 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
405 ngx_close_socket_n " %V failed",
|
|
406 &ls[i].addr_text);
|
|
407 }
|
|
408
|
|
409 return NGX_ERROR;
|
|
410 }
|
|
411
|
112
|
412 ls[i].listen = 1;
|
0
|
413
|
|
414 ls[i].fd = s;
|
|
415 }
|
|
416
|
112
|
417 if (!failed) {
|
0
|
418 break;
|
112
|
419 }
|
0
|
420
|
|
421 /* TODO: delay configurable */
|
|
422
|
|
423 ngx_log_error(NGX_LOG_NOTICE, log, 0,
|
|
424 "try again to bind() after 500ms");
|
112
|
425
|
0
|
426 ngx_msleep(500);
|
|
427 }
|
|
428
|
|
429 if (failed) {
|
26
|
430 ngx_log_error(NGX_LOG_EMERG, log, 0, "still could not bind()");
|
0
|
431 return NGX_ERROR;
|
|
432 }
|
|
433
|
|
434 return NGX_OK;
|
|
435 }
|
|
436
|
|
437
|
70
|
438 void
|
486
|
439 ngx_configure_listening_sockets(ngx_cycle_t *cycle)
|
112
|
440 {
|
|
441 ngx_uint_t i;
|
|
442 ngx_listening_t *ls;
|
|
443
|
|
444 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
|
|
445 struct accept_filter_arg af;
|
|
446 #endif
|
|
447 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
|
|
448 int timeout;
|
|
449 #endif
|
|
450
|
|
451 ls = cycle->listening.elts;
|
|
452 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
453
|
486
|
454 ls[i].log = *ls[i].logp;
|
|
455
|
112
|
456 if (ls[i].rcvbuf != -1) {
|
|
457 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_RCVBUF,
|
|
458 (const void *) &ls[i].rcvbuf, sizeof(int))
|
|
459 == -1)
|
|
460 {
|
|
461 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
|
118
|
462 "setsockopt(SO_RCVBUF, %d) %V failed, ignored",
|
|
463 ls[i].rcvbuf, &ls[i].addr_text);
|
112
|
464 }
|
|
465 }
|
|
466
|
|
467 if (ls[i].sndbuf != -1) {
|
|
468 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_SNDBUF,
|
|
469 (const void *) &ls[i].sndbuf, sizeof(int))
|
|
470 == -1)
|
|
471 {
|
|
472 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
|
118
|
473 "setsockopt(SO_SNDBUF, %d) %V failed, ignored",
|
|
474 ls[i].sndbuf, &ls[i].addr_text);
|
112
|
475 }
|
|
476 }
|
|
477
|
184
|
478 #if 0
|
|
479 if (1) {
|
|
480 int tcp_nodelay = 1;
|
|
481
|
|
482 if (setsockopt(ls[i].fd, IPPROTO_TCP, TCP_NODELAY,
|
|
483 (const void *) &tcp_nodelay, sizeof(int))
|
|
484 == -1)
|
|
485 {
|
|
486 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
|
|
487 "setsockopt(TCP_NODELAY) %V failed, ignored",
|
|
488 &ls[i].addr_text);
|
|
489 }
|
|
490 }
|
|
491 #endif
|
|
492
|
112
|
493 if (ls[i].listen) {
|
306
|
494
|
|
495 /* change backlog via listen() */
|
|
496
|
112
|
497 if (listen(ls[i].fd, ls[i].backlog) == -1) {
|
|
498 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
|
306
|
499 "listen() to %V, backlog %d failed, ignored",
|
112
|
500 &ls[i].addr_text, ls[i].backlog);
|
|
501 }
|
|
502 }
|
|
503
|
|
504 /*
|
|
505 * setting deferred mode should be last operation on socket,
|
|
506 * because code may prematurely continue cycle on failure
|
|
507 */
|
|
508
|
|
509 #if (NGX_HAVE_DEFERRED_ACCEPT)
|
|
510
|
|
511 #ifdef SO_ACCEPTFILTER
|
|
512
|
176
|
513 if (ls[i].delete_deferred) {
|
|
514 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER, NULL, 0)
|
|
515 == -1)
|
112
|
516 {
|
|
517 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
518 "setsockopt(SO_ACCEPTFILTER, NULL) "
|
|
519 "for %V failed, ignored",
|
176
|
520 &ls[i].addr_text);
|
112
|
521
|
176
|
522 if (ls[i].accept_filter) {
|
112
|
523 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
524 "could not change the accept filter "
|
|
525 "to \"%s\" for %V, ignored",
|
176
|
526 ls[i].accept_filter, &ls[i].addr_text);
|
112
|
527 }
|
|
528
|
|
529 continue;
|
|
530 }
|
|
531
|
176
|
532 ls[i].deferred_accept = 0;
|
112
|
533 }
|
|
534
|
176
|
535 if (ls[i].add_deferred) {
|
112
|
536 ngx_memzero(&af, sizeof(struct accept_filter_arg));
|
|
537 (void) ngx_cpystrn((u_char *) af.af_name,
|
176
|
538 (u_char *) ls[i].accept_filter, 16);
|
112
|
539
|
176
|
540 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER,
|
112
|
541 &af, sizeof(struct accept_filter_arg))
|
|
542 == -1)
|
|
543 {
|
|
544 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
545 "setsockopt(SO_ACCEPTFILTER, \"%s\") "
|
|
546 " for %V failed, ignored",
|
176
|
547 ls[i].accept_filter, &ls[i].addr_text);
|
112
|
548 continue;
|
|
549 }
|
|
550
|
176
|
551 ls[i].deferred_accept = 1;
|
112
|
552 }
|
|
553
|
|
554 #endif
|
|
555
|
|
556 #ifdef TCP_DEFER_ACCEPT
|
|
557
|
176
|
558 if (ls[i].add_deferred || ls[i].delete_deferred) {
|
112
|
559
|
176
|
560 if (ls[i].add_deferred) {
|
|
561 timeout = (int) (ls[i].post_accept_timeout / 1000);
|
112
|
562
|
|
563 } else {
|
|
564 timeout = 0;
|
|
565 }
|
|
566
|
176
|
567 if (setsockopt(ls[i].fd, IPPROTO_TCP, TCP_DEFER_ACCEPT,
|
112
|
568 &timeout, sizeof(int))
|
|
569 == -1)
|
|
570 {
|
|
571 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
572 "setsockopt(TCP_DEFER_ACCEPT, %d) for %V failed, "
|
|
573 "ignored",
|
176
|
574 timeout, &ls[i].addr_text);
|
112
|
575
|
|
576 continue;
|
|
577 }
|
|
578 }
|
|
579
|
176
|
580 if (ls[i].add_deferred) {
|
|
581 ls[i].deferred_accept = 1;
|
112
|
582 }
|
|
583
|
|
584 #endif
|
|
585
|
|
586 #endif /* NGX_HAVE_DEFERRED_ACCEPT */
|
|
587 }
|
|
588
|
|
589 return;
|
|
590 }
|
|
591
|
|
592
|
|
593 void
|
70
|
594 ngx_close_listening_sockets(ngx_cycle_t *cycle)
|
0
|
595 {
|
92
|
596 ngx_uint_t i;
|
|
597 ngx_listening_t *ls;
|
|
598 ngx_connection_t *c;
|
0
|
599
|
|
600 if (ngx_event_flags & NGX_USE_IOCP_EVENT) {
|
|
601 return;
|
|
602 }
|
|
603
|
|
604 ngx_accept_mutex_held = 0;
|
160
|
605 ngx_use_accept_mutex = 0;
|
0
|
606
|
|
607 ls = cycle->listening.elts;
|
|
608 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
609
|
92
|
610 c = ls[i].connection;
|
0
|
611
|
480
|
612 if (c) {
|
|
613 if (c->read->active) {
|
|
614 if (ngx_event_flags & NGX_USE_RTSIG_EVENT) {
|
|
615 ngx_del_conn(c, NGX_CLOSE_EVENT);
|
362
|
616
|
480
|
617 } else if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
|
0
|
618
|
480
|
619 /*
|
|
620 * it seems that Linux-2.6.x OpenVZ sends events
|
|
621 * for closed shared listening sockets unless
|
|
622 * the events was explicity deleted
|
|
623 */
|
362
|
624
|
480
|
625 ngx_del_event(c->read, NGX_READ_EVENT, 0);
|
362
|
626
|
480
|
627 } else {
|
|
628 ngx_del_event(c->read, NGX_READ_EVENT, NGX_CLOSE_EVENT);
|
|
629 }
|
0
|
630 }
|
480
|
631
|
|
632 ngx_free_connection(c);
|
|
633
|
|
634 c->fd = (ngx_socket_t) -1;
|
0
|
635 }
|
|
636
|
112
|
637 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
638 "close listening %V #%d ", &ls[i].addr_text, ls[i].fd);
|
|
639
|
92
|
640 if (ngx_close_socket(ls[i].fd) == -1) {
|
0
|
641 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
|
10
|
642 ngx_close_socket_n " %V failed", &ls[i].addr_text);
|
0
|
643 }
|
498
|
644
|
538
|
645 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
646
|
|
647 if (ls[i].sockaddr->sa_family == AF_UNIX
|
552
|
648 && ngx_process <= NGX_PROCESS_MASTER
|
540
|
649 && ngx_new_binary == 0)
|
538
|
650 {
|
|
651 u_char *name = ls[i].addr_text.data + sizeof("unix:") - 1;
|
|
652
|
|
653 if (ngx_delete_file(name) == -1) {
|
|
654 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
|
|
655 ngx_delete_file_n " %s failed", name);
|
|
656 }
|
|
657 }
|
|
658
|
|
659 #endif
|
|
660
|
498
|
661 ls[i].fd = (ngx_socket_t) -1;
|
92
|
662 }
|
|
663 }
|
0
|
664
|
92
|
665
|
|
666 ngx_connection_t *
|
|
667 ngx_get_connection(ngx_socket_t s, ngx_log_t *log)
|
|
668 {
|
110
|
669 ngx_uint_t instance;
|
|
670 ngx_event_t *rev, *wev;
|
|
671 ngx_connection_t *c;
|
92
|
672
|
|
673 /* disable warning: Win32 SOCKET is u_int while UNIX socket is int */
|
|
674
|
|
675 if (ngx_cycle->files && (ngx_uint_t) s >= ngx_cycle->files_n) {
|
|
676 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
677 "the new socket has number %d, "
|
|
678 "but only %ui files are available",
|
|
679 s, ngx_cycle->files_n);
|
|
680 return NULL;
|
|
681 }
|
|
682
|
|
683 /* ngx_mutex_lock */
|
|
684
|
|
685 c = ngx_cycle->free_connections;
|
|
686
|
|
687 if (c == NULL) {
|
|
688 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
412
|
689 "%ui worker_connections are not enough",
|
92
|
690 ngx_cycle->connection_n);
|
|
691
|
|
692 /* ngx_mutex_unlock */
|
|
693
|
|
694 return NULL;
|
|
695 }
|
|
696
|
|
697 ngx_cycle->free_connections = c->data;
|
|
698 ngx_cycle->free_connection_n--;
|
|
699
|
|
700 /* ngx_mutex_unlock */
|
|
701
|
|
702 if (ngx_cycle->files) {
|
|
703 ngx_cycle->files[s] = c;
|
|
704 }
|
|
705
|
110
|
706 rev = c->read;
|
|
707 wev = c->write;
|
|
708
|
|
709 ngx_memzero(c, sizeof(ngx_connection_t));
|
|
710
|
|
711 c->read = rev;
|
|
712 c->write = wev;
|
|
713 c->fd = s;
|
|
714 c->log = log;
|
|
715
|
|
716 instance = rev->instance;
|
|
717
|
|
718 ngx_memzero(rev, sizeof(ngx_event_t));
|
|
719 ngx_memzero(wev, sizeof(ngx_event_t));
|
|
720
|
|
721 rev->instance = !instance;
|
|
722 wev->instance = !instance;
|
|
723
|
|
724 rev->index = NGX_INVALID_INDEX;
|
|
725 wev->index = NGX_INVALID_INDEX;
|
|
726
|
|
727 rev->data = c;
|
|
728 wev->data = c;
|
|
729
|
|
730 wev->write = 1;
|
|
731
|
92
|
732 return c;
|
|
733 }
|
|
734
|
|
735
|
|
736 void
|
|
737 ngx_free_connection(ngx_connection_t *c)
|
|
738 {
|
|
739 /* ngx_mutex_lock */
|
|
740
|
|
741 c->data = ngx_cycle->free_connections;
|
|
742 ngx_cycle->free_connections = c;
|
|
743 ngx_cycle->free_connection_n++;
|
|
744
|
|
745 /* ngx_mutex_unlock */
|
|
746
|
|
747 if (ngx_cycle->files) {
|
|
748 ngx_cycle->files[c->fd] = NULL;
|
0
|
749 }
|
|
750 }
|
|
751
|
|
752
|
70
|
753 void
|
|
754 ngx_close_connection(ngx_connection_t *c)
|
0
|
755 {
|
366
|
756 ngx_err_t err;
|
|
757 ngx_uint_t log_error, level;
|
0
|
758 ngx_socket_t fd;
|
|
759
|
28
|
760 if (c->fd == -1) {
|
0
|
761 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "connection already closed");
|
|
762 return;
|
|
763 }
|
|
764
|
|
765 if (c->read->timer_set) {
|
|
766 ngx_del_timer(c->read);
|
|
767 }
|
126
|
768
|
0
|
769 if (c->write->timer_set) {
|
|
770 ngx_del_timer(c->write);
|
|
771 }
|
126
|
772
|
0
|
773 if (ngx_del_conn) {
|
|
774 ngx_del_conn(c, NGX_CLOSE_EVENT);
|
|
775
|
|
776 } else {
|
|
777 if (c->read->active || c->read->disabled) {
|
|
778 ngx_del_event(c->read, NGX_READ_EVENT, NGX_CLOSE_EVENT);
|
|
779 }
|
|
780
|
|
781 if (c->write->active || c->write->disabled) {
|
|
782 ngx_del_event(c->write, NGX_WRITE_EVENT, NGX_CLOSE_EVENT);
|
|
783 }
|
|
784 }
|
|
785
|
|
786 #if (NGX_THREADS)
|
|
787
|
|
788 /*
|
|
789 * we have to clean the connection information before the closing
|
|
790 * because another thread may reopen the same file descriptor
|
|
791 * before we clean the connection
|
|
792 */
|
|
793
|
112
|
794 ngx_mutex_lock(ngx_posted_events_mutex);
|
0
|
795
|
112
|
796 if (c->read->prev) {
|
|
797 ngx_delete_posted_event(c->read);
|
|
798 }
|
0
|
799
|
112
|
800 if (c->write->prev) {
|
|
801 ngx_delete_posted_event(c->write);
|
|
802 }
|
0
|
803
|
112
|
804 c->read->closed = 1;
|
|
805 c->write->closed = 1;
|
0
|
806
|
112
|
807 if (c->single_connection) {
|
|
808 ngx_unlock(&c->lock);
|
|
809 c->read->locked = 0;
|
|
810 c->write->locked = 0;
|
|
811 }
|
0
|
812
|
112
|
813 ngx_mutex_unlock(ngx_posted_events_mutex);
|
0
|
814
|
|
815 #else
|
|
816
|
|
817 if (c->read->prev) {
|
|
818 ngx_delete_posted_event(c->read);
|
|
819 }
|
|
820
|
|
821 if (c->write->prev) {
|
|
822 ngx_delete_posted_event(c->write);
|
|
823 }
|
|
824
|
|
825 c->read->closed = 1;
|
|
826 c->write->closed = 1;
|
|
827
|
|
828 #endif
|
|
829
|
366
|
830 log_error = c->log_error;
|
|
831
|
92
|
832 ngx_free_connection(c);
|
|
833
|
0
|
834 fd = c->fd;
|
|
835 c->fd = (ngx_socket_t) -1;
|
|
836
|
|
837 if (ngx_close_socket(fd) == -1) {
|
|
838
|
366
|
839 err = ngx_socket_errno;
|
|
840
|
|
841 if (err == NGX_ECONNRESET || err == NGX_ENOTCONN) {
|
|
842
|
|
843 switch (log_error) {
|
|
844
|
|
845 case NGX_ERROR_INFO:
|
|
846 level = NGX_LOG_INFO;
|
|
847 break;
|
|
848
|
|
849 case NGX_ERROR_ERR:
|
|
850 level = NGX_LOG_ERR;
|
|
851 break;
|
|
852
|
|
853 default:
|
|
854 level = NGX_LOG_CRIT;
|
|
855 }
|
|
856
|
|
857 } else {
|
|
858 level = NGX_LOG_CRIT;
|
|
859 }
|
|
860
|
0
|
861 /* we use ngx_cycle->log because c->log was in c->pool */
|
|
862
|
366
|
863 ngx_log_error(level, ngx_cycle->log, err,
|
332
|
864 ngx_close_socket_n " %d failed", fd);
|
0
|
865 }
|
|
866 }
|
|
867
|
|
868
|
70
|
869 ngx_int_t
|
492
|
870 ngx_connection_local_sockaddr(ngx_connection_t *c, ngx_str_t *s,
|
|
871 ngx_uint_t port)
|
|
872 {
|
|
873 socklen_t len;
|
|
874 ngx_uint_t addr;
|
|
875 u_char sa[NGX_SOCKADDRLEN];
|
|
876 struct sockaddr_in *sin;
|
|
877 #if (NGX_HAVE_INET6)
|
|
878 ngx_uint_t i;
|
|
879 struct sockaddr_in6 *sin6;
|
|
880 #endif
|
|
881
|
|
882 switch (c->local_sockaddr->sa_family) {
|
|
883
|
|
884 #if (NGX_HAVE_INET6)
|
|
885 case AF_INET6:
|
|
886 sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
|
|
887
|
|
888 for (addr = 0, i = 0; addr == 0 && i < 16; i++) {
|
|
889 addr |= sin6->sin6_addr.s6_addr[i];
|
|
890 }
|
|
891
|
|
892 break;
|
|
893 #endif
|
|
894
|
|
895 default: /* AF_INET */
|
|
896 sin = (struct sockaddr_in *) c->local_sockaddr;
|
|
897 addr = sin->sin_addr.s_addr;
|
|
898 break;
|
|
899 }
|
|
900
|
|
901 if (addr == 0) {
|
|
902
|
|
903 len = NGX_SOCKADDRLEN;
|
|
904
|
|
905 if (getsockname(c->fd, (struct sockaddr *) &sa, &len) == -1) {
|
|
906 ngx_connection_error(c, ngx_socket_errno, "getsockname() failed");
|
|
907 return NGX_ERROR;
|
|
908 }
|
|
909
|
|
910 c->local_sockaddr = ngx_palloc(c->pool, len);
|
|
911 if (c->local_sockaddr == NULL) {
|
|
912 return NGX_ERROR;
|
|
913 }
|
|
914
|
|
915 ngx_memcpy(c->local_sockaddr, &sa, len);
|
|
916 }
|
|
917
|
|
918 if (s == NULL) {
|
|
919 return NGX_OK;
|
|
920 }
|
|
921
|
|
922 s->len = ngx_sock_ntop(c->local_sockaddr, s->data, s->len, port);
|
|
923
|
|
924 return NGX_OK;
|
|
925 }
|
|
926
|
|
927
|
|
928 ngx_int_t
|
70
|
929 ngx_connection_error(ngx_connection_t *c, ngx_err_t err, char *text)
|
0
|
930 {
|
|
931 ngx_uint_t level;
|
|
932
|
484
|
933 /* Winsock may return NGX_ECONNABORTED instead of NGX_ECONNRESET */
|
|
934
|
|
935 if ((err == NGX_ECONNRESET
|
|
936 #if (NGX_WIN32)
|
|
937 || err == NGX_ECONNABORTED
|
|
938 #endif
|
|
939 ) && c->log_error == NGX_ERROR_IGNORE_ECONNRESET)
|
|
940 {
|
0
|
941 return 0;
|
|
942 }
|
|
943
|
460
|
944 #if (NGX_SOLARIS)
|
|
945 if (err == NGX_EINVAL && c->log_error == NGX_ERROR_IGNORE_EINVAL) {
|
|
946 return 0;
|
|
947 }
|
|
948 #endif
|
|
949
|
86
|
950 if (err == 0
|
|
951 || err == NGX_ECONNRESET
|
484
|
952 #if (NGX_WIN32)
|
|
953 || err == NGX_ECONNABORTED
|
|
954 #else
|
0
|
955 || err == NGX_EPIPE
|
|
956 #endif
|
|
957 || err == NGX_ENOTCONN
|
136
|
958 || err == NGX_ETIMEDOUT
|
0
|
959 || err == NGX_ECONNREFUSED
|
364
|
960 || err == NGX_ENETDOWN
|
|
961 || err == NGX_ENETUNREACH
|
|
962 || err == NGX_EHOSTDOWN
|
0
|
963 || err == NGX_EHOSTUNREACH)
|
|
964 {
|
|
965 switch (c->log_error) {
|
|
966
|
460
|
967 case NGX_ERROR_IGNORE_EINVAL:
|
0
|
968 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
969 case NGX_ERROR_INFO:
|
|
970 level = NGX_LOG_INFO;
|
|
971 break;
|
|
972
|
530
|
973 default:
|
0
|
974 level = NGX_LOG_ERR;
|
|
975 }
|
|
976
|
|
977 } else {
|
366
|
978 level = NGX_LOG_ALERT;
|
0
|
979 }
|
|
980
|
|
981 ngx_log_error(level, c->log, err, text);
|
|
982
|
|
983 return NGX_ERROR;
|
|
984 }
|