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290
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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 #include <ngx_mail.h>
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11
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12
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13 static void ngx_mail_init_session(ngx_connection_t *c);
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14
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15 #if (NGX_MAIL_SSL)
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16 static void ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c);
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17 static void ngx_mail_ssl_handshake_handler(ngx_connection_t *c);
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18 #endif
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19
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20
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21 void
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22 ngx_mail_init_connection(ngx_connection_t *c)
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23 {
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24 in_addr_t in_addr;
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25 socklen_t len;
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26 ngx_uint_t i;
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27 struct sockaddr_in sin;
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28 ngx_mail_log_ctx_t *ctx;
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29 ngx_mail_in_port_t *imip;
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30 ngx_mail_in_addr_t *imia;
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31 ngx_mail_session_t *s;
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32
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33 /* find the server configuration for the address:port */
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34
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35 /* AF_INET only */
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36
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37 imip = c->listening->servers;
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38 imia = imip->addrs;
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39
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40 i = 0;
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41
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42 if (imip->naddrs > 1) {
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43
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44 /*
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45 * There are several addresses on this port and one of them
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46 * is the "*:port" wildcard so getsockname() is needed to determine
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47 * the server address.
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48 *
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49 * AcceptEx() already gave this address.
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50 */
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51
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52 #if (NGX_WIN32)
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53 if (c->local_sockaddr) {
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54 in_addr =
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55 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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56
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57 } else
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58 #endif
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59 {
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60 len = sizeof(struct sockaddr_in);
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61 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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62 ngx_connection_error(c, ngx_socket_errno,
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63 "getsockname() failed");
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64 ngx_mail_close_connection(c);
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65 return;
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66 }
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67
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68 in_addr = sin.sin_addr.s_addr;
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69 }
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70
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71 /* the last address is "*" */
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72
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73 for ( /* void */ ; i < imip->naddrs - 1; i++) {
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74 if (in_addr == imia[i].addr) {
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75 break;
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76 }
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77 }
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78 }
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79
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80
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81 s = ngx_pcalloc(c->pool, sizeof(ngx_mail_session_t));
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82 if (s == NULL) {
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83 ngx_mail_close_connection(c);
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84 return;
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85 }
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86
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87 s->main_conf = imia[i].ctx->main_conf;
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88 s->srv_conf = imia[i].ctx->srv_conf;
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89
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90 s->addr_text = &imia[i].addr_text;
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91
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92 c->data = s;
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93 s->connection = c;
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94
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95 ngx_log_error(NGX_LOG_INFO, c->log, 0, "*%ui client %V connected to %V",
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96 c->number, &c->addr_text, s->addr_text);
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97
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98 ctx = ngx_palloc(c->pool, sizeof(ngx_mail_log_ctx_t));
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99 if (ctx == NULL) {
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100 ngx_mail_close_connection(c);
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101 return;
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102 }
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103
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104 ctx->client = &c->addr_text;
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105 ctx->session = s;
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106
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107 c->log->connection = c->number;
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108 c->log->handler = ngx_mail_log_error;
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109 c->log->data = ctx;
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110 c->log->action = "sending client greeting line";
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111
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112 c->log_error = NGX_ERROR_INFO;
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113
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114 #if (NGX_MAIL_SSL)
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356
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115 {
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116 ngx_mail_ssl_conf_t *sslcf;
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290
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117
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118 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module);
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119
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120 if (sslcf->enable) {
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121 ngx_mail_ssl_init_connection(&sslcf->ssl, c);
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122 return;
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123 }
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356
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124 }
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290
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125 #endif
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126
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127 ngx_mail_init_session(c);
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128 }
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129
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130
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131 #if (NGX_MAIL_SSL)
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132
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336
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133 void
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290
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134 ngx_mail_starttls_handler(ngx_event_t *rev)
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135 {
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136 ngx_connection_t *c;
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137 ngx_mail_session_t *s;
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138 ngx_mail_ssl_conf_t *sslcf;
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139
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140 c = rev->data;
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141 s = c->data;
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142 s->starttls = 1;
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143
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144 c->log->action = "in starttls state";
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145
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146 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module);
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147
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148 ngx_mail_ssl_init_connection(&sslcf->ssl, c);
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149 }
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150
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151
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152 static void
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153 ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c)
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154 {
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155 ngx_mail_session_t *s;
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156 ngx_mail_core_srv_conf_t *cscf;
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157
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158 if (ngx_ssl_create_connection(ssl, c, 0) == NGX_ERROR) {
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159 ngx_mail_close_connection(c);
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160 return;
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161 }
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162
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163 if (ngx_ssl_handshake(c) == NGX_AGAIN) {
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164
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165 s = c->data;
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166
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167 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
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168
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169 ngx_add_timer(c->read, cscf->timeout);
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170
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171 c->ssl->handler = ngx_mail_ssl_handshake_handler;
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172
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173 return;
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174 }
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175
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176 ngx_mail_ssl_handshake_handler(c);
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177 }
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178
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179
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180 static void
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181 ngx_mail_ssl_handshake_handler(ngx_connection_t *c)
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182 {
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336
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183 ngx_mail_session_t *s;
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184 ngx_mail_core_srv_conf_t *cscf;
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290
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185
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186 if (c->ssl->handshaked) {
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187
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188 s = c->data;
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189
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190 if (s->starttls) {
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336
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191 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
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192
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193 c->read->handler = cscf->protocol->init_protocol;
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290
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194 c->write->handler = ngx_mail_send;
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195
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336
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196 cscf->protocol->init_protocol(c->read);
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290
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197
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198 return;
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199 }
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200
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201 ngx_mail_init_session(c);
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202 return;
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203 }
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204
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205 ngx_mail_close_connection(c);
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206 }
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207
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208 #endif
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209
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210
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211 static void
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212 ngx_mail_init_session(ngx_connection_t *c)
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213 {
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214 ngx_mail_session_t *s;
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215 ngx_mail_core_srv_conf_t *cscf;
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216
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217 s = c->data;
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218
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219 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
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220
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336
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221 s->protocol = cscf->protocol->type;
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290
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222
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223 s->ctx = ngx_pcalloc(c->pool, sizeof(void *) * ngx_mail_max_module);
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224 if (s->ctx == NULL) {
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225 ngx_mail_session_internal_server_error(s);
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226 return;
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227 }
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228
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336
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229 c->write->handler = ngx_mail_send;
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230
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231 cscf->protocol->init_session(s, c);
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232 }
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233
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234
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235 ngx_int_t
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236 ngx_mail_salt(ngx_mail_session_t *s, ngx_connection_t *c,
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237 ngx_mail_core_srv_conf_t *cscf)
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238 {
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239 s->salt.data = ngx_palloc(c->pool,
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240 sizeof(" <18446744073709551616.@>" CRLF) - 1
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241 + NGX_TIME_T_LEN
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242 + cscf->server_name.len);
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243 if (s->salt.data == NULL) {
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244 return NGX_ERROR;
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245 }
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246
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247 s->salt.len = ngx_sprintf(s->salt.data, "<%ul.%T@%V>" CRLF,
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248 ngx_random(), ngx_time(), &cscf->server_name)
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249 - s->salt.data;
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250
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251 return NGX_OK;
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252 }
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253
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254
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255 #if (NGX_MAIL_SSL)
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256
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257 ngx_int_t
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258 ngx_mail_starttls_only(ngx_mail_session_t *s, ngx_connection_t *c)
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259 {
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260 ngx_mail_ssl_conf_t *sslcf;
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261
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262 if (c->ssl) {
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263 return 0;
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264 }
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265
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266 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module);
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267
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268 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) {
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269 return 1;
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270 }
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271
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272 return 0;
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273 }
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290
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274
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336
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275 #endif
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276
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277
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278 ngx_int_t
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279 ngx_mail_auth_plain(ngx_mail_session_t *s, ngx_connection_t *c, ngx_uint_t n)
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280 {
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281 u_char *p, *last;
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282 ngx_str_t *arg, plain;
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283
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284 arg = s->args.elts;
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285
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286 #if (NGX_DEBUG_MAIL_PASSWD)
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287 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
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288 "mail auth plain: \"%V\"", &arg[n]);
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289 #endif
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290
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291 plain.data = ngx_palloc(c->pool, ngx_base64_decoded_length(arg[n].len));
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292 if (plain.data == NULL){
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293 return NGX_ERROR;
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294 }
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295
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296 if (ngx_decode_base64(&plain, &arg[n]) != NGX_OK) {
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297 ngx_log_error(NGX_LOG_INFO, c->log, 0,
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298 "client sent invalid base64 encoding in AUTH PLAIN command");
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299 return NGX_MAIL_PARSE_INVALID_COMMAND;
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300 }
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301
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302 p = plain.data;
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303 last = p + plain.len;
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304
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305 while (p < last && *p++) { /* void */ }
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306
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307 if (p == last) {
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308 ngx_log_error(NGX_LOG_INFO, c->log, 0,
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309 "client sent invalid login in AUTH PLAIN command");
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310 return NGX_MAIL_PARSE_INVALID_COMMAND;
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311 }
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312
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313 s->login.data = p;
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314
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315 while (p < last && *p) { p++; }
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316
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317 if (p == last) {
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318 ngx_log_error(NGX_LOG_INFO, c->log, 0,
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319 "client sent invalid password in AUTH PLAIN command");
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320 return NGX_MAIL_PARSE_INVALID_COMMAND;
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290
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321 }
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322
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336
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323 s->login.len = p++ - s->login.data;
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324
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325 s->passwd.len = last - p;
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326 s->passwd.data = p;
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327
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328 #if (NGX_DEBUG_MAIL_PASSWD)
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329 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0,
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330 "mail auth plain: \"%V\" \"%V\"", &s->login, &s->passwd);
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331 #endif
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332
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333 return NGX_DONE;
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334 }
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335
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290
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336
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336
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337 ngx_int_t
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338 ngx_mail_auth_login_username(ngx_mail_session_t *s, ngx_connection_t *c)
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339 {
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340 ngx_str_t *arg;
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341
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342 arg = s->args.elts;
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343
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344 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
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345 "mail auth login username: \"%V\"", &arg[0]);
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346
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347 s->login.data = ngx_palloc(c->pool, ngx_base64_decoded_length(arg[0].len));
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348 if (s->login.data == NULL){
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349 return NGX_ERROR;
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350 }
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322
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351
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336
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352 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) {
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353 ngx_log_error(NGX_LOG_INFO, c->log, 0,
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354 "client sent invalid base64 encoding in AUTH LOGIN command");
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355 return NGX_MAIL_PARSE_INVALID_COMMAND;
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356 }
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357
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358 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
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359 "mail auth login username: \"%V\"", &s->login);
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360
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361 return NGX_OK;
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362 }
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363
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364
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365 ngx_int_t
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366 ngx_mail_auth_login_password(ngx_mail_session_t *s, ngx_connection_t *c)
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367 {
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368 ngx_str_t *arg;
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369
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370 arg = s->args.elts;
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371
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372 #if (NGX_DEBUG_MAIL_PASSWD)
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373 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
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374 "mail auth login password: \"%V\"", &arg[0]);
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375 #endif
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376
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377 s->passwd.data = ngx_palloc(c->pool, ngx_base64_decoded_length(arg[0].len));
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378 if (s->passwd.data == NULL){
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379 return NGX_ERROR;
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380 }
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381
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382 if (ngx_decode_base64(&s->passwd, &arg[0]) != NGX_OK) {
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383 ngx_log_error(NGX_LOG_INFO, c->log, 0,
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384 "client sent invalid base64 encoding in AUTH LOGIN command");
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385 return NGX_MAIL_PARSE_INVALID_COMMAND;
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386 }
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290
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387
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336
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388 #if (NGX_DEBUG_MAIL_PASSWD)
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389 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
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390 "mail auth login password: \"%V\"", &s->passwd);
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391 #endif
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392
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393 return NGX_DONE;
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394 }
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395
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396
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397 ngx_int_t
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398 ngx_mail_auth_cram_md5_salt(ngx_mail_session_t *s, ngx_connection_t *c,
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399 char *prefix, size_t len)
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400 {
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401 u_char *p;
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402 ngx_str_t salt;
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403 ngx_uint_t n;
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404
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405 p = ngx_palloc(c->pool, len + ngx_base64_encoded_length(s->salt.len) + 2);
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406 if (p == NULL) {
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407 return NGX_ERROR;
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408 }
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409
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410 salt.data = ngx_cpymem(p, prefix, len);
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411 s->salt.len -= 2;
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412
|
|
|
413 ngx_encode_base64(&salt, &s->salt);
|
|
|
414
|
|
|
415 s->salt.len += 2;
|
|
|
416 n = len + salt.len;
|
|
|
417 p[n++] = CR; p[n++] = LF;
|
|
|
418
|
|
|
419 s->out.len = n;
|
|
|
420 s->out.data = p;
|
|
290
|
421
|
|
336
|
422 return NGX_OK;
|
|
|
423 }
|
|
|
424
|
|
|
425
|
|
|
426 ngx_int_t
|
|
|
427 ngx_mail_auth_cram_md5(ngx_mail_session_t *s, ngx_connection_t *c)
|
|
|
428 {
|
|
|
429 u_char *p, *last;
|
|
|
430 ngx_str_t *arg;
|
|
|
431
|
|
|
432 arg = s->args.elts;
|
|
|
433
|
|
|
434 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
|
|
|
435 "mail auth cram-md5: \"%V\"", &arg[0]);
|
|
290
|
436
|
|
336
|
437 s->login.data = ngx_palloc(c->pool, ngx_base64_decoded_length(arg[0].len));
|
|
|
438 if (s->login.data == NULL){
|
|
|
439 return NGX_ERROR;
|
|
|
440 }
|
|
290
|
441
|
|
336
|
442 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) {
|
|
|
443 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
444 "client sent invalid base64 encoding in AUTH CRAM-MD5 command");
|
|
|
445 return NGX_MAIL_PARSE_INVALID_COMMAND;
|
|
|
446 }
|
|
|
447
|
|
|
448 p = s->login.data;
|
|
|
449 last = p + s->login.len;
|
|
|
450
|
|
|
451 while (p < last) {
|
|
|
452 if (*p++ == ' ') {
|
|
|
453 s->login.len = p - s->login.data - 1;
|
|
|
454 s->passwd.len = last - p;
|
|
|
455 s->passwd.data = p;
|
|
|
456 break;
|
|
290
|
457 }
|
|
|
458 }
|
|
|
459
|
|
336
|
460 if (s->passwd.len != 32) {
|
|
|
461 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
462 "client sent invalid CRAM-MD5 hash in AUTH CRAM-MD5 command");
|
|
|
463 return NGX_MAIL_PARSE_INVALID_COMMAND;
|
|
290
|
464 }
|
|
|
465
|
|
336
|
466 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0,
|
|
|
467 "mail auth cram-md5: \"%V\" \"%V\"", &s->login, &s->passwd);
|
|
|
468
|
|
|
469 s->auth_method = NGX_MAIL_AUTH_CRAM_MD5;
|
|
|
470
|
|
|
471 return NGX_DONE;
|
|
290
|
472 }
|
|
|
473
|
|
|
474
|
|
|
475 void
|
|
|
476 ngx_mail_send(ngx_event_t *wev)
|
|
|
477 {
|
|
|
478 ngx_int_t n;
|
|
|
479 ngx_connection_t *c;
|
|
|
480 ngx_mail_session_t *s;
|
|
|
481 ngx_mail_core_srv_conf_t *cscf;
|
|
|
482
|
|
|
483 c = wev->data;
|
|
|
484 s = c->data;
|
|
|
485
|
|
|
486 if (wev->timedout) {
|
|
|
487 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
488 c->timedout = 1;
|
|
|
489 ngx_mail_close_connection(c);
|
|
|
490 return;
|
|
|
491 }
|
|
|
492
|
|
|
493 if (s->out.len == 0) {
|
|
|
494 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
495 ngx_mail_close_connection(c);
|
|
|
496 }
|
|
|
497
|
|
|
498 return;
|
|
|
499 }
|
|
|
500
|
|
|
501 n = c->send(c, s->out.data, s->out.len);
|
|
|
502
|
|
|
503 if (n > 0) {
|
|
|
504 s->out.len -= n;
|
|
|
505
|
|
|
506 if (wev->timer_set) {
|
|
|
507 ngx_del_timer(wev);
|
|
|
508 }
|
|
|
509
|
|
|
510 if (s->quit) {
|
|
|
511 ngx_mail_close_connection(c);
|
|
|
512 return;
|
|
|
513 }
|
|
|
514
|
|
|
515 if (s->blocked) {
|
|
|
516 c->read->handler(c->read);
|
|
|
517 }
|
|
|
518
|
|
|
519 return;
|
|
|
520 }
|
|
|
521
|
|
|
522 if (n == NGX_ERROR) {
|
|
|
523 ngx_mail_close_connection(c);
|
|
|
524 return;
|
|
|
525 }
|
|
|
526
|
|
|
527 /* n == NGX_AGAIN */
|
|
|
528
|
|
|
529 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
|
|
|
530
|
|
|
531 ngx_add_timer(c->write, cscf->timeout);
|
|
|
532
|
|
|
533 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
534 ngx_mail_close_connection(c);
|
|
|
535 return;
|
|
|
536 }
|
|
|
537 }
|
|
|
538
|
|
|
539
|
|
336
|
540 ngx_int_t
|
|
|
541 ngx_mail_read_command(ngx_mail_session_t *s, ngx_connection_t *c)
|
|
290
|
542 {
|
|
336
|
543 ssize_t n;
|
|
|
544 ngx_int_t rc;
|
|
|
545 ngx_str_t l;
|
|
290
|
546 ngx_mail_core_srv_conf_t *cscf;
|
|
|
547
|
|
336
|
548 n = c->recv(c, s->buffer->last, s->buffer->end - s->buffer->last);
|
|
290
|
549
|
|
|
550 if (n == NGX_ERROR || n == 0) {
|
|
336
|
551 ngx_mail_close_connection(c);
|
|
290
|
552 return NGX_ERROR;
|
|
|
553 }
|
|
|
554
|
|
|
555 if (n > 0) {
|
|
|
556 s->buffer->last += n;
|
|
|
557 }
|
|
|
558
|
|
|
559 if (n == NGX_AGAIN) {
|
|
336
|
560 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
290
|
561 ngx_mail_session_internal_server_error(s);
|
|
|
562 return NGX_ERROR;
|
|
|
563 }
|
|
|
564
|
|
|
565 return NGX_AGAIN;
|
|
|
566 }
|
|
|
567
|
|
336
|
568 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
|
|
290
|
569
|
|
336
|
570 rc = cscf->protocol->parse_command(s);
|
|
290
|
571
|
|
|
572 if (rc == NGX_AGAIN) {
|
|
|
573
|
|
|
574 if (s->buffer->last < s->buffer->end) {
|
|
|
575 return rc;
|
|
|
576 }
|
|
|
577
|
|
|
578 l.len = s->buffer->last - s->buffer->start;
|
|
|
579 l.data = s->buffer->start;
|
|
|
580
|
|
336
|
581 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
290
|
582 "client sent too long command \"%V\"", &l);
|
|
|
583
|
|
|
584 s->quit = 1;
|
|
|
585
|
|
|
586 return NGX_MAIL_PARSE_INVALID_COMMAND;
|
|
|
587 }
|
|
|
588
|
|
|
589 if (rc == NGX_IMAP_NEXT || rc == NGX_MAIL_PARSE_INVALID_COMMAND) {
|
|
|
590 return rc;
|
|
|
591 }
|
|
|
592
|
|
|
593 if (rc == NGX_ERROR) {
|
|
336
|
594 ngx_mail_close_connection(c);
|
|
290
|
595 return NGX_ERROR;
|
|
|
596 }
|
|
|
597
|
|
|
598 return NGX_OK;
|
|
|
599 }
|
|
|
600
|
|
|
601
|
|
|
602 void
|
|
336
|
603 ngx_mail_auth(ngx_mail_session_t *s, ngx_connection_t *c)
|
|
|
604 {
|
|
|
605 s->args.nelts = 0;
|
|
|
606 s->buffer->pos = s->buffer->start;
|
|
|
607 s->buffer->last = s->buffer->start;
|
|
|
608 s->state = 0;
|
|
|
609
|
|
|
610 if (c->read->timer_set) {
|
|
|
611 ngx_del_timer(c->read);
|
|
|
612 }
|
|
|
613
|
|
|
614 s->login_attempt++;
|
|
|
615
|
|
|
616 ngx_mail_auth_http_init(s);
|
|
|
617 }
|
|
|
618
|
|
|
619
|
|
|
620 void
|
|
290
|
621 ngx_mail_session_internal_server_error(ngx_mail_session_t *s)
|
|
|
622 {
|
|
336
|
623 ngx_mail_core_srv_conf_t *cscf;
|
|
|
624
|
|
|
625 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
|
|
|
626
|
|
|
627 s->out = cscf->protocol->internal_server_error;
|
|
290
|
628 s->quit = 1;
|
|
|
629
|
|
|
630 ngx_mail_send(s->connection->write);
|
|
|
631 }
|
|
|
632
|
|
|
633
|
|
|
634 void
|
|
|
635 ngx_mail_close_connection(ngx_connection_t *c)
|
|
|
636 {
|
|
|
637 ngx_pool_t *pool;
|
|
|
638
|
|
|
639 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
|
|
|
640 "close mail connection: %d", c->fd);
|
|
|
641
|
|
|
642 #if (NGX_MAIL_SSL)
|
|
|
643
|
|
|
644 if (c->ssl) {
|
|
|
645 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
646 c->ssl->handler = ngx_mail_close_connection;
|
|
|
647 return;
|
|
|
648 }
|
|
|
649 }
|
|
|
650
|
|
|
651 #endif
|
|
|
652
|
|
336
|
653 #if (NGX_STAT_STUB)
|
|
|
654 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
|
655 #endif
|
|
|
656
|
|
290
|
657 c->destroyed = 1;
|
|
|
658
|
|
|
659 pool = c->pool;
|
|
|
660
|
|
|
661 ngx_close_connection(c);
|
|
|
662
|
|
|
663 ngx_destroy_pool(pool);
|
|
|
664 }
|
|
|
665
|
|
|
666
|
|
336
|
667 u_char *
|
|
290
|
668 ngx_mail_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
|
669 {
|
|
|
670 u_char *p;
|
|
|
671 ngx_mail_session_t *s;
|
|
|
672 ngx_mail_log_ctx_t *ctx;
|
|
|
673
|
|
|
674 if (log->action) {
|
|
|
675 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
|
676 len -= p - buf;
|
|
|
677 buf = p;
|
|
|
678 }
|
|
|
679
|
|
|
680 ctx = log->data;
|
|
|
681
|
|
|
682 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
|
683 len -= p - buf;
|
|
|
684 buf = p;
|
|
|
685
|
|
|
686 s = ctx->session;
|
|
|
687
|
|
|
688 if (s == NULL) {
|
|
|
689 return p;
|
|
|
690 }
|
|
|
691
|
|
336
|
692 p = ngx_snprintf(buf, len, "%s, server: %V",
|
|
|
693 s->starttls ? " using starttls" : "",
|
|
|
694 s->addr_text);
|
|
290
|
695 len -= p - buf;
|
|
|
696 buf = p;
|
|
|
697
|
|
|
698 if (s->login.len == 0) {
|
|
|
699 return p;
|
|
|
700 }
|
|
|
701
|
|
|
702 p = ngx_snprintf(buf, len, ", login: \"%V\"", &s->login);
|
|
|
703 len -= p - buf;
|
|
|
704 buf = p;
|
|
|
705
|
|
|
706 if (s->proxy == NULL) {
|
|
|
707 return p;
|
|
|
708 }
|
|
|
709
|
|
|
710 p = ngx_snprintf(buf, len, ", upstream: %V", s->proxy->upstream.name);
|
|
|
711
|
|
|
712 return p;
|
|
|
713 }
|
