6115
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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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6
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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_stream.h>
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11
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12
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13 typedef void (*ngx_stream_proxy_handler_pt)(ngx_stream_session_t *s);
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14
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15
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16 typedef struct {
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17 ngx_msec_t connect_timeout;
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18 ngx_msec_t timeout;
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19 ngx_msec_t next_upstream_timeout;
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20 size_t downstream_buf_size;
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21 size_t upstream_buf_size;
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22 ngx_uint_t next_upstream_tries;
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23 ngx_flag_t next_upstream;
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24
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25 #if (NGX_STREAM_SSL)
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26 ngx_flag_t ssl_enable;
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27 ngx_flag_t ssl_session_reuse;
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28 ngx_uint_t ssl_protocols;
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29 ngx_str_t ssl_ciphers;
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30 ngx_str_t ssl_name;
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31 ngx_flag_t ssl_server_name;
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32
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33 ngx_flag_t ssl_verify;
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34 ngx_uint_t ssl_verify_depth;
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35 ngx_str_t ssl_trusted_certificate;
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36 ngx_str_t ssl_crl;
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37 ngx_str_t ssl_certificate;
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38 ngx_str_t ssl_certificate_key;
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39 ngx_array_t *ssl_passwords;
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40
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41 ngx_ssl_t *ssl;
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42 #endif
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43
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44 ngx_stream_upstream_srv_conf_t *upstream;
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45 } ngx_stream_proxy_srv_conf_t;
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46
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47
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48 static void ngx_stream_proxy_handler(ngx_stream_session_t *s);
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49 static void ngx_stream_proxy_connect(ngx_stream_session_t *s);
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50 static void ngx_stream_proxy_init_upstream(ngx_stream_session_t *s);
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51 static void ngx_stream_proxy_upstream_handler(ngx_event_t *ev);
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52 static void ngx_stream_proxy_downstream_handler(ngx_event_t *ev);
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53 static void ngx_stream_proxy_connect_handler(ngx_event_t *ev);
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54 static ngx_int_t ngx_stream_proxy_test_connect(ngx_connection_t *c);
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55 static ngx_int_t ngx_stream_proxy_process(ngx_stream_session_t *s,
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56 ngx_uint_t from_upstream, ngx_uint_t do_write);
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57 static void ngx_stream_proxy_next_upstream(ngx_stream_session_t *s);
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58 static void ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_int_t rc);
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59 static u_char *ngx_stream_proxy_log_error(ngx_log_t *log, u_char *buf,
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60 size_t len);
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61
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62 static void *ngx_stream_proxy_create_srv_conf(ngx_conf_t *cf);
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63 static char *ngx_stream_proxy_merge_srv_conf(ngx_conf_t *cf, void *parent,
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64 void *child);
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65 static char *ngx_stream_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd,
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66 void *conf);
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67
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68 #if (NGX_STREAM_SSL)
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69
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70 static char *ngx_stream_proxy_ssl_password_file(ngx_conf_t *cf,
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71 ngx_command_t *cmd, void *conf);
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72 static void ngx_stream_proxy_ssl_init_connection(ngx_stream_session_t *s);
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73 static void ngx_stream_proxy_ssl_handshake(ngx_connection_t *pc);
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74 static ngx_int_t ngx_stream_proxy_ssl_name(ngx_stream_session_t *s);
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75 static ngx_int_t ngx_stream_proxy_set_ssl(ngx_conf_t *cf,
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76 ngx_stream_proxy_srv_conf_t *pscf);
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77
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78
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79 static ngx_conf_bitmask_t ngx_stream_proxy_ssl_protocols[] = {
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80 { ngx_string("SSLv2"), NGX_SSL_SSLv2 },
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81 { ngx_string("SSLv3"), NGX_SSL_SSLv3 },
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82 { ngx_string("TLSv1"), NGX_SSL_TLSv1 },
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83 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 },
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84 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 },
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85 { ngx_null_string, 0 }
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86 };
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87
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88 #endif
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89
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90
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91 static ngx_command_t ngx_stream_proxy_commands[] = {
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92
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93 { ngx_string("proxy_pass"),
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94 NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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95 ngx_stream_proxy_pass,
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96 NGX_STREAM_SRV_CONF_OFFSET,
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97 0,
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98 NULL },
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99
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100 { ngx_string("proxy_connect_timeout"),
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101 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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102 ngx_conf_set_msec_slot,
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103 NGX_STREAM_SRV_CONF_OFFSET,
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104 offsetof(ngx_stream_proxy_srv_conf_t, connect_timeout),
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105 NULL },
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106
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107 { ngx_string("proxy_timeout"),
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108 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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109 ngx_conf_set_msec_slot,
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110 NGX_STREAM_SRV_CONF_OFFSET,
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111 offsetof(ngx_stream_proxy_srv_conf_t, timeout),
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112 NULL },
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113
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114 { ngx_string("proxy_downstream_buffer"),
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115 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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116 ngx_conf_set_size_slot,
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117 NGX_STREAM_SRV_CONF_OFFSET,
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118 offsetof(ngx_stream_proxy_srv_conf_t, downstream_buf_size),
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119 NULL },
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120
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121 { ngx_string("proxy_upstream_buffer"),
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122 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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123 ngx_conf_set_size_slot,
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124 NGX_STREAM_SRV_CONF_OFFSET,
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125 offsetof(ngx_stream_proxy_srv_conf_t, upstream_buf_size),
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126 NULL },
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127
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128 { ngx_string("proxy_next_upstream"),
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129 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG,
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130 ngx_conf_set_flag_slot,
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131 NGX_STREAM_SRV_CONF_OFFSET,
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132 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream),
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133 NULL },
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134
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135 { ngx_string("proxy_next_upstream_tries"),
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136 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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137 ngx_conf_set_num_slot,
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138 NGX_STREAM_SRV_CONF_OFFSET,
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139 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream_tries),
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140 NULL },
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141
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142 { ngx_string("proxy_next_upstream_timeout"),
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143 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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144 ngx_conf_set_msec_slot,
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145 NGX_STREAM_SRV_CONF_OFFSET,
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146 offsetof(ngx_stream_proxy_srv_conf_t, next_upstream_timeout),
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147 NULL },
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148
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149 #if (NGX_STREAM_SSL)
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150
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151 { ngx_string("proxy_ssl"),
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152 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG,
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153 ngx_conf_set_flag_slot,
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154 NGX_STREAM_SRV_CONF_OFFSET,
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155 offsetof(ngx_stream_proxy_srv_conf_t, ssl_enable),
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156 NULL },
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157
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158 { ngx_string("proxy_ssl_session_reuse"),
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159 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG,
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160 ngx_conf_set_flag_slot,
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161 NGX_STREAM_SRV_CONF_OFFSET,
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162 offsetof(ngx_stream_proxy_srv_conf_t, ssl_session_reuse),
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163 NULL },
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164
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165 { ngx_string("proxy_ssl_protocols"),
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166 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE,
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167 ngx_conf_set_bitmask_slot,
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168 NGX_STREAM_SRV_CONF_OFFSET,
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169 offsetof(ngx_stream_proxy_srv_conf_t, ssl_protocols),
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170 &ngx_stream_proxy_ssl_protocols },
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171
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172 { ngx_string("proxy_ssl_ciphers"),
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173 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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174 ngx_conf_set_str_slot,
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175 NGX_STREAM_SRV_CONF_OFFSET,
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176 offsetof(ngx_stream_proxy_srv_conf_t, ssl_ciphers),
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177 NULL },
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178
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179 { ngx_string("proxy_ssl_name"),
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180 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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181 ngx_conf_set_str_slot,
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182 NGX_STREAM_SRV_CONF_OFFSET,
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183 offsetof(ngx_stream_proxy_srv_conf_t, ssl_name),
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184 NULL },
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185
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186 { ngx_string("proxy_ssl_server_name"),
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187 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG,
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188 ngx_conf_set_flag_slot,
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189 NGX_STREAM_SRV_CONF_OFFSET,
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190 offsetof(ngx_stream_proxy_srv_conf_t, ssl_server_name),
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191 NULL },
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192
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193 { ngx_string("proxy_ssl_verify"),
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194 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG,
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195 ngx_conf_set_flag_slot,
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196 NGX_STREAM_SRV_CONF_OFFSET,
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197 offsetof(ngx_stream_proxy_srv_conf_t, ssl_verify),
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198 NULL },
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199
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200 { ngx_string("proxy_ssl_verify_depth"),
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201 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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202 ngx_conf_set_num_slot,
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203 NGX_STREAM_SRV_CONF_OFFSET,
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204 offsetof(ngx_stream_proxy_srv_conf_t, ssl_verify_depth),
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205 NULL },
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206
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207 { ngx_string("proxy_ssl_trusted_certificate"),
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208 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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209 ngx_conf_set_str_slot,
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210 NGX_STREAM_SRV_CONF_OFFSET,
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211 offsetof(ngx_stream_proxy_srv_conf_t, ssl_trusted_certificate),
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212 NULL },
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213
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214 { ngx_string("proxy_ssl_crl"),
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215 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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216 ngx_conf_set_str_slot,
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217 NGX_STREAM_SRV_CONF_OFFSET,
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218 offsetof(ngx_stream_proxy_srv_conf_t, ssl_crl),
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219 NULL },
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220
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221 { ngx_string("proxy_ssl_certificate"),
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222 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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223 ngx_conf_set_str_slot,
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224 NGX_STREAM_SRV_CONF_OFFSET,
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225 offsetof(ngx_stream_proxy_srv_conf_t, ssl_certificate),
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226 NULL },
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227
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228 { ngx_string("proxy_ssl_certificate_key"),
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229 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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230 ngx_conf_set_str_slot,
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231 NGX_STREAM_SRV_CONF_OFFSET,
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232 offsetof(ngx_stream_proxy_srv_conf_t, ssl_certificate_key),
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233 NULL },
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234
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235 { ngx_string("proxy_ssl_password_file"),
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236 NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1,
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237 ngx_stream_proxy_ssl_password_file,
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238 NGX_STREAM_SRV_CONF_OFFSET,
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239 0,
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240 NULL },
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241
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242 #endif
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243
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244 ngx_null_command
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245 };
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246
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247
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248 static ngx_stream_module_t ngx_stream_proxy_module_ctx = {
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249 NULL, /* create main configuration */
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250 NULL, /* init main configuration */
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251
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252 ngx_stream_proxy_create_srv_conf, /* create server configuration */
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253 ngx_stream_proxy_merge_srv_conf /* merge server configuration */
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254 };
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255
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256
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257 ngx_module_t ngx_stream_proxy_module = {
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258 NGX_MODULE_V1,
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259 &ngx_stream_proxy_module_ctx, /* module context */
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260 ngx_stream_proxy_commands, /* module directives */
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261 NGX_STREAM_MODULE, /* module type */
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262 NULL, /* init master */
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263 NULL, /* init module */
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264 NULL, /* init process */
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265 NULL, /* init thread */
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266 NULL, /* exit thread */
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267 NULL, /* exit process */
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268 NULL, /* exit master */
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269 NGX_MODULE_V1_PADDING
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270 };
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271
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272
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273 static void
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274 ngx_stream_proxy_handler(ngx_stream_session_t *s)
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275 {
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276 u_char *p;
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277 ngx_connection_t *c;
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278 ngx_stream_upstream_t *u;
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279 ngx_stream_proxy_srv_conf_t *pscf;
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280 ngx_stream_upstream_srv_conf_t *uscf;
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281
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282 c = s->connection;
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283
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284 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module);
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285
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286 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0,
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287 "proxy connection handler");
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288
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289 u = ngx_pcalloc(c->pool, sizeof(ngx_stream_upstream_t));
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290 if (u == NULL) {
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291 ngx_stream_proxy_finalize(s, NGX_ERROR);
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292 return;
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293 }
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294
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295 s->upstream = u;
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296
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297 s->log_handler = ngx_stream_proxy_log_error;
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298
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299 u->peer.log = c->log;
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300 u->peer.log_error = NGX_ERROR_ERR;
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301
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302 uscf = pscf->upstream;
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303
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304 if (uscf->peer.init(s, uscf) != NGX_OK) {
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305 ngx_stream_proxy_finalize(s, NGX_ERROR);
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306 return;
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307 }
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308
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309 u->peer.start_time = ngx_current_msec;
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310
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311 if (pscf->next_upstream_tries
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312 && u->peer.tries > pscf->next_upstream_tries)
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313 {
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314 u->peer.tries = pscf->next_upstream_tries;
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315 }
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316
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317 p = ngx_pnalloc(c->pool, pscf->downstream_buf_size);
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318 if (p == NULL) {
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319 ngx_stream_proxy_finalize(s, NGX_ERROR);
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320 return;
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321 }
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322
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323 u->downstream_buf.start = p;
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324 u->downstream_buf.end = p + pscf->downstream_buf_size;
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325 u->downstream_buf.pos = p;
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326 u->downstream_buf.last = p;
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327
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328 c->write->handler = ngx_stream_proxy_downstream_handler;
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329 c->read->handler = ngx_stream_proxy_downstream_handler;
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330
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331 if (ngx_stream_proxy_process(s, 0, 0) != NGX_OK) {
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332 return;
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333 }
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334
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335 ngx_stream_proxy_connect(s);
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336 }
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337
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338
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339 static void
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340 ngx_stream_proxy_connect(ngx_stream_session_t *s)
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341 {
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342 ngx_int_t rc;
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343 ngx_connection_t *c, *pc;
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344 ngx_stream_upstream_t *u;
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345 ngx_stream_proxy_srv_conf_t *pscf;
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346
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347 c = s->connection;
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348
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349 c->log->action = "connecting to upstream";
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350
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351 u = s->upstream;
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352
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353 rc = ngx_event_connect_peer(&u->peer);
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354
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355 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, c->log, 0, "proxy connect: %i", rc);
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356
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357 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module);
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358
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359 if (rc == NGX_ERROR) {
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360 ngx_stream_proxy_finalize(s, NGX_ERROR);
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361 return;
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362 }
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363
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364 if (rc == NGX_BUSY) {
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365 ngx_log_error(NGX_LOG_ERR, c->log, 0, "no live upstreams");
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366 ngx_stream_proxy_finalize(s, NGX_DECLINED);
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367 return;
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368 }
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369
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370 if (rc == NGX_DECLINED) {
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371 ngx_stream_proxy_next_upstream(s);
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372 return;
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373 }
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374
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375 /* rc == NGX_OK || rc == NGX_AGAIN || rc == NGX_DONE */
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376
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377 pc = u->peer.connection;
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378
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379 pc->data = s;
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380 pc->log = c->log;
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381 pc->pool = c->pool;
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382 pc->read->log = c->log;
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383 pc->write->log = c->log;
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384
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385 if (rc != NGX_AGAIN) {
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386 ngx_stream_proxy_init_upstream(s);
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387 return;
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388 }
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389
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390 pc->read->handler = ngx_stream_proxy_connect_handler;
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391 pc->write->handler = ngx_stream_proxy_connect_handler;
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392
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393 ngx_add_timer(pc->write, pscf->connect_timeout);
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394 }
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395
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396
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397 static void
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398 ngx_stream_proxy_init_upstream(ngx_stream_session_t *s)
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399 {
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400 u_char *p;
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401 ngx_connection_t *c, *pc;
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402 ngx_log_handler_pt handler;
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403 ngx_stream_upstream_t *u;
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404 ngx_stream_proxy_srv_conf_t *pscf;
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405
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406 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module);
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407
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408 u = s->upstream;
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409
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410 pc = u->peer.connection;
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411
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412 #if (NGX_STREAM_SSL)
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413 if (pscf->ssl && pc->ssl == NULL) {
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414 ngx_stream_proxy_ssl_init_connection(s);
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415 return;
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416 }
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417 #endif
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418
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419 c = s->connection;
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420
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421 if (c->log->log_level >= NGX_LOG_INFO) {
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422 ngx_str_t s;
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423 u_char addr[NGX_SOCKADDR_STRLEN];
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424
|
|
425 s.len = NGX_SOCKADDR_STRLEN;
|
|
426 s.data = addr;
|
|
427
|
|
428 if (ngx_connection_local_sockaddr(pc, &s, 1) == NGX_OK) {
|
|
429 handler = c->log->handler;
|
|
430 c->log->handler = NULL;
|
|
431
|
|
432 ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxy %V connected to %V",
|
|
433 &s, u->peer.name);
|
|
434
|
|
435 c->log->handler = handler;
|
|
436 }
|
|
437 }
|
|
438
|
|
439 c->log->action = "proxying connection";
|
|
440
|
|
441 p = ngx_pnalloc(c->pool, pscf->upstream_buf_size);
|
|
442 if (p == NULL) {
|
|
443 ngx_stream_proxy_finalize(s, NGX_ERROR);
|
|
444 return;
|
|
445 }
|
|
446
|
|
447 u->upstream_buf.start = p;
|
|
448 u->upstream_buf.end = p + pscf->upstream_buf_size;
|
|
449 u->upstream_buf.pos = p;
|
|
450 u->upstream_buf.last = p;
|
|
451
|
|
452 pc->read->handler = ngx_stream_proxy_upstream_handler;
|
|
453 pc->write->handler = ngx_stream_proxy_upstream_handler;
|
|
454
|
|
455 if (ngx_stream_proxy_process(s, 1, 0) != NGX_OK) {
|
|
456 return;
|
|
457 }
|
|
458
|
|
459 ngx_stream_proxy_process(s, 0, 1);
|
|
460 }
|
|
461
|
|
462
|
|
463 #if (NGX_STREAM_SSL)
|
|
464
|
|
465 static char *
|
|
466 ngx_stream_proxy_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
467 void *conf)
|
|
468 {
|
|
469 ngx_stream_proxy_srv_conf_t *pscf = conf;
|
|
470
|
|
471 ngx_str_t *value;
|
|
472
|
|
473 if (pscf->ssl_passwords != NGX_CONF_UNSET_PTR) {
|
|
474 return "is duplicate";
|
|
475 }
|
|
476
|
|
477 value = cf->args->elts;
|
|
478
|
|
479 pscf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]);
|
|
480
|
|
481 if (pscf->ssl_passwords == NULL) {
|
|
482 return NGX_CONF_ERROR;
|
|
483 }
|
|
484
|
|
485 return NGX_CONF_OK;
|
|
486 }
|
|
487
|
|
488
|
|
489 static void
|
|
490 ngx_stream_proxy_ssl_init_connection(ngx_stream_session_t *s)
|
|
491 {
|
|
492 ngx_int_t rc;
|
|
493 ngx_connection_t *pc;
|
|
494 ngx_stream_upstream_t *u;
|
|
495 ngx_stream_proxy_srv_conf_t *pscf;
|
|
496
|
|
497 u = s->upstream;
|
|
498
|
|
499 pc = u->peer.connection;
|
|
500
|
|
501 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module);
|
|
502
|
|
503 if (ngx_ssl_create_connection(pscf->ssl, pc, NGX_SSL_BUFFER|NGX_SSL_CLIENT)
|
|
504 != NGX_OK)
|
|
505 {
|
|
506 ngx_stream_proxy_finalize(s, NGX_ERROR);
|
|
507 return;
|
|
508 }
|
|
509
|
|
510 if (pscf->ssl_server_name || pscf->ssl_verify) {
|
|
511 if (ngx_stream_proxy_ssl_name(s) != NGX_OK) {
|
|
512 ngx_stream_proxy_finalize(s, NGX_ERROR);
|
|
513 return;
|
|
514 }
|
|
515 }
|
|
516
|
|
517 if (pscf->ssl_session_reuse) {
|
|
518 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) {
|
|
519 ngx_stream_proxy_finalize(s, NGX_ERROR);
|
|
520 return;
|
|
521 }
|
|
522 }
|
|
523
|
|
524 s->connection->log->action = "SSL handshaking to upstream";
|
|
525
|
|
526 rc = ngx_ssl_handshake(pc);
|
|
527
|
|
528 if (rc == NGX_AGAIN) {
|
|
529
|
|
530 if (!pc->write->timer_set) {
|
|
531 ngx_add_timer(pc->write, pscf->connect_timeout);
|
|
532 }
|
|
533
|
|
534 pc->ssl->handler = ngx_stream_proxy_ssl_handshake;
|
|
535 return;
|
|
536 }
|
|
537
|
|
538 ngx_stream_proxy_ssl_handshake(pc);
|
|
539 }
|
|
540
|
|
541
|
|
542 static void
|
|
543 ngx_stream_proxy_ssl_handshake(ngx_connection_t *pc)
|
|
544 {
|
|
545 long rc;
|
|
546 ngx_stream_session_t *s;
|
|
547 ngx_stream_upstream_t *u;
|
|
548 ngx_stream_proxy_srv_conf_t *pscf;
|
|
549
|
|
550 s = pc->data;
|
|
551
|
|
552 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module);
|
|
553
|
|
554 if (pc->ssl->handshaked) {
|
|
555
|
|
556 if (pscf->ssl_verify) {
|
|
557 rc = SSL_get_verify_result(pc->ssl->connection);
|
|
558
|
|
559 if (rc != X509_V_OK) {
|
|
560 ngx_log_error(NGX_LOG_ERR, pc->log, 0,
|
|
561 "upstream SSL certificate verify error: (%l:%s)",
|
|
562 rc, X509_verify_cert_error_string(rc));
|
|
563 goto failed;
|
|
564 }
|
|
565
|
|
566 u = s->upstream;
|
|
567
|
|
568 if (ngx_ssl_check_host(pc, &u->ssl_name) != NGX_OK) {
|
|
569 ngx_log_error(NGX_LOG_ERR, pc->log, 0,
|
|
570 "upstream SSL certificate does not match \"%V\"",
|
|
571 &u->ssl_name);
|
|
572 goto failed;
|
|
573 }
|
|
574 }
|
|
575
|
|
576 if (pscf->ssl_session_reuse) {
|
|
577 u = s->upstream;
|
|
578 u->peer.save_session(&u->peer, u->peer.data);
|
|
579 }
|
|
580
|
|
581 ngx_stream_proxy_init_upstream(s);
|
|
582
|
|
583 return;
|
|
584 }
|
|
585
|
|
586 failed:
|
|
587
|
|
588 ngx_stream_proxy_next_upstream(s);
|
|
589 }
|
|
590
|
|
591
|
|
592 static ngx_int_t
|
|
593 ngx_stream_proxy_ssl_name(ngx_stream_session_t *s)
|
|
594 {
|
|
595 u_char *p, *last;
|
|
596 ngx_str_t name;
|
|
597 ngx_stream_upstream_t *u;
|
|
598 ngx_stream_proxy_srv_conf_t *pscf;
|
|
599
|
|
600 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module);
|
|
601
|
|
602 u = s->upstream;
|
|
603
|
|
604 name = pscf->ssl_name;
|
|
605
|
|
606 if (name.len == 0) {
|
|
607 name = pscf->upstream->host;
|
|
608 }
|
|
609
|
|
610 if (name.len == 0) {
|
|
611 goto done;
|
|
612 }
|
|
613
|
|
614 /*
|
|
615 * ssl name here may contain port, strip it for compatibility
|
|
616 * with the http module
|
|
617 */
|
|
618
|
|
619 p = name.data;
|
|
620 last = name.data + name.len;
|
|
621
|
|
622 if (*p == '[') {
|
|
623 p = ngx_strlchr(p, last, ']');
|
|
624
|
|
625 if (p == NULL) {
|
|
626 p = name.data;
|
|
627 }
|
|
628 }
|
|
629
|
|
630 p = ngx_strlchr(p, last, ':');
|
|
631
|
|
632 if (p != NULL) {
|
|
633 name.len = p - name.data;
|
|
634 }
|
|
635
|
|
636 if (!pscf->ssl_server_name) {
|
|
637 goto done;
|
|
638 }
|
|
639
|
|
640 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
641
|
|
642 /* as per RFC 6066, literal IPv4 and IPv6 addresses are not permitted */
|
|
643
|
|
644 if (name.len == 0 || *name.data == '[') {
|
|
645 goto done;
|
|
646 }
|
|
647
|
|
648 if (ngx_inet_addr(name.data, name.len) != INADDR_NONE) {
|
|
649 goto done;
|
|
650 }
|
|
651
|
|
652 /*
|
|
653 * SSL_set_tlsext_host_name() needs a null-terminated string,
|
|
654 * hence we explicitly null-terminate name here
|
|
655 */
|
|
656
|
|
657 p = ngx_pnalloc(s->connection->pool, name.len + 1);
|
|
658 if (p == NULL) {
|
|
659 return NGX_ERROR;
|
|
660 }
|
|
661
|
|
662 (void) ngx_cpystrn(p, name.data, name.len + 1);
|
|
663
|
|
664 name.data = p;
|
|
665
|
|
666 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0,
|
|
667 "upstream SSL server name: \"%s\"", name.data);
|
|
668
|
|
669 if (SSL_set_tlsext_host_name(u->peer.connection->ssl->connection, name.data)
|
|
670 == 0)
|
|
671 {
|
|
672 ngx_ssl_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
673 "SSL_set_tlsext_host_name(\"%s\") failed", name.data);
|
|
674 return NGX_ERROR;
|
|
675 }
|
|
676
|
|
677 #endif
|
|
678
|
|
679 done:
|
|
680
|
|
681 u->ssl_name = name;
|
|
682
|
|
683 return NGX_OK;
|
|
684 }
|
|
685
|
|
686 #endif
|
|
687
|
|
688
|
|
689 static void
|
|
690 ngx_stream_proxy_downstream_handler(ngx_event_t *ev)
|
|
691 {
|
|
692 ngx_connection_t *c;
|
|
693 ngx_stream_session_t *s;
|
|
694 ngx_stream_upstream_t *u;
|
|
695
|
|
696 c = ev->data;
|
|
697 s = c->data;
|
|
698
|
|
699 if (ev->timedout) {
|
|
700 ngx_connection_error(c, NGX_ETIMEDOUT, "connection timed out");
|
|
701 ngx_stream_proxy_finalize(s, NGX_DECLINED);
|
|
702 return;
|
|
703 }
|
|
704
|
|
705 u = s->upstream;
|
|
706
|
|
707 if (!ev->write) {
|
|
708 ngx_stream_proxy_process(s, 0, 0);
|
|
709
|
|
710 } else if (u->upstream_buf.start) {
|
|
711 ngx_stream_proxy_process(s, 1, 1);
|
|
712 }
|
|
713 }
|
|
714
|
|
715
|
|
716 static void
|
|
717 ngx_stream_proxy_upstream_handler(ngx_event_t *ev)
|
|
718 {
|
|
719 ngx_connection_t *c;
|
|
720 ngx_stream_session_t *s;
|
|
721 ngx_stream_upstream_t *u;
|
|
722
|
|
723 c = ev->data;
|
|
724 s = c->data;
|
|
725
|
|
726 u = s->upstream;
|
|
727
|
|
728 if (ev->write) {
|
|
729 ngx_stream_proxy_process(s, 0, 1);
|
|
730
|
|
731 } else if (u->upstream_buf.start) {
|
|
732 ngx_stream_proxy_process(s, 1, 0);
|
|
733 }
|
|
734 }
|
|
735
|
|
736
|
|
737 static void
|
|
738 ngx_stream_proxy_connect_handler(ngx_event_t *ev)
|
|
739 {
|
|
740 ngx_connection_t *c;
|
|
741 ngx_stream_session_t *s;
|
|
742
|
|
743 c = ev->data;
|
|
744 s = c->data;
|
|
745
|
|
746 if (ev->timedout) {
|
|
747 ngx_log_error(NGX_LOG_ERR, c->log, NGX_ETIMEDOUT, "upstream timed out");
|
|
748 ngx_stream_proxy_next_upstream(s);
|
|
749 return;
|
|
750 }
|
|
751
|
|
752 ngx_del_timer(c->write);
|
|
753
|
|
754 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0,
|
|
755 "stream proxy connect upstream");
|
|
756
|
|
757 if (ngx_stream_proxy_test_connect(c) != NGX_OK) {
|
|
758 ngx_stream_proxy_next_upstream(s);
|
|
759 return;
|
|
760 }
|
|
761
|
|
762 ngx_stream_proxy_init_upstream(s);
|
|
763 }
|
|
764
|
|
765
|
|
766 static ngx_int_t
|
|
767 ngx_stream_proxy_test_connect(ngx_connection_t *c)
|
|
768 {
|
|
769 int err;
|
|
770 socklen_t len;
|
|
771
|
|
772 #if (NGX_HAVE_KQUEUE)
|
|
773
|
|
774 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
775 err = c->write->kq_errno ? c->write->kq_errno : c->read->kq_errno;
|
|
776
|
|
777 if (err) {
|
|
778 (void) ngx_connection_error(c, err,
|
|
779 "kevent() reported that connect() failed");
|
|
780 return NGX_ERROR;
|
|
781 }
|
|
782
|
|
783 } else
|
|
784 #endif
|
|
785 {
|
|
786 err = 0;
|
|
787 len = sizeof(int);
|
|
788
|
|
789 /*
|
|
790 * BSDs and Linux return 0 and set a pending error in err
|
|
791 * Solaris returns -1 and sets errno
|
|
792 */
|
|
793
|
|
794 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len)
|
|
795 == -1)
|
|
796 {
|
|
797 err = ngx_socket_errno;
|
|
798 }
|
|
799
|
|
800 if (err) {
|
|
801 (void) ngx_connection_error(c, err, "connect() failed");
|
|
802 return NGX_ERROR;
|
|
803 }
|
|
804 }
|
|
805
|
|
806 return NGX_OK;
|
|
807 }
|
|
808
|
|
809
|
|
810 static ngx_int_t
|
|
811 ngx_stream_proxy_process(ngx_stream_session_t *s, ngx_uint_t from_upstream,
|
|
812 ngx_uint_t do_write)
|
|
813 {
|
|
814 size_t size;
|
|
815 ssize_t n;
|
|
816 ngx_buf_t *b;
|
|
817 ngx_connection_t *c, *pc, *src, *dst;
|
|
818 ngx_log_handler_pt handler;
|
|
819 ngx_stream_upstream_t *u;
|
|
820 ngx_stream_proxy_srv_conf_t *pscf;
|
|
821
|
|
822 u = s->upstream;
|
|
823
|
|
824 c = s->connection;
|
|
825 pc = u->upstream_buf.start ? u->peer.connection : NULL;
|
|
826
|
|
827 if (from_upstream) {
|
|
828 src = pc;
|
|
829 dst = c;
|
|
830 b = &u->upstream_buf;
|
|
831
|
|
832 } else {
|
|
833 src = c;
|
|
834 dst = pc;
|
|
835 b = &u->downstream_buf;
|
|
836 }
|
|
837
|
|
838 for ( ;; ) {
|
|
839
|
|
840 if (do_write) {
|
|
841
|
|
842 size = b->last - b->pos;
|
|
843
|
|
844 if (size && dst && dst->write->ready) {
|
|
845
|
|
846 n = dst->send(dst, b->pos, size);
|
|
847
|
|
848 if (n == NGX_ERROR) {
|
|
849 ngx_stream_proxy_finalize(s, NGX_DECLINED);
|
|
850 return NGX_ERROR;
|
|
851 }
|
|
852
|
|
853 if (n > 0) {
|
|
854 b->pos += n;
|
|
855
|
|
856 if (b->pos == b->last) {
|
|
857 b->pos = b->start;
|
|
858 b->last = b->start;
|
|
859 }
|
|
860 }
|
|
861 }
|
|
862 }
|
|
863
|
|
864 size = b->end - b->last;
|
|
865
|
|
866 if (size && src->read->ready) {
|
|
867
|
|
868 n = src->recv(src, b->last, size);
|
|
869
|
|
870 if (n == NGX_AGAIN || n == 0) {
|
|
871 break;
|
|
872 }
|
|
873
|
|
874 if (n > 0) {
|
|
875 if (from_upstream) {
|
|
876 u->received += n;
|
|
877
|
|
878 } else {
|
|
879 s->received += n;
|
|
880 }
|
|
881
|
|
882 do_write = 1;
|
|
883 b->last += n;
|
|
884 continue;
|
|
885 }
|
|
886
|
|
887 if (n == NGX_ERROR) {
|
|
888 src->read->eof = 1;
|
|
889 }
|
|
890 }
|
|
891
|
|
892 break;
|
|
893 }
|
|
894
|
|
895 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module);
|
|
896
|
|
897 if (src->read->eof && (b->pos == b->last || (dst && dst->read->eof))) {
|
|
898 handler = c->log->handler;
|
|
899 c->log->handler = NULL;
|
|
900
|
|
901 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
902 "%s disconnected"
|
|
903 ", bytes from/to client:%O/%O"
|
|
904 ", bytes from/to upstream:%O/%O",
|
|
905 from_upstream ? "upstream" : "client",
|
|
906 s->received, c->sent, u->received, pc ? pc->sent : 0);
|
|
907
|
|
908 c->log->handler = handler;
|
|
909
|
|
910 ngx_stream_proxy_finalize(s, NGX_OK);
|
|
911 return NGX_DONE;
|
|
912 }
|
|
913
|
|
914 if (ngx_handle_read_event(src->read, 0) != NGX_OK) {
|
|
915 ngx_stream_proxy_finalize(s, NGX_ERROR);
|
|
916 return NGX_ERROR;
|
|
917 }
|
|
918
|
|
919 if (dst) {
|
|
920 if (ngx_handle_write_event(dst->write, 0) != NGX_OK) {
|
|
921 ngx_stream_proxy_finalize(s, NGX_ERROR);
|
|
922 return NGX_ERROR;
|
|
923 }
|
|
924
|
|
925 ngx_add_timer(c->read, pscf->timeout);
|
|
926 }
|
|
927
|
|
928 return NGX_OK;
|
|
929 }
|
|
930
|
|
931
|
|
932 static void
|
|
933 ngx_stream_proxy_next_upstream(ngx_stream_session_t *s)
|
|
934 {
|
|
935 ngx_msec_t timeout;
|
|
936 ngx_connection_t *pc;
|
|
937 ngx_stream_upstream_t *u;
|
|
938 ngx_stream_proxy_srv_conf_t *pscf;
|
|
939
|
|
940 ngx_log_debug0(NGX_LOG_DEBUG_STREAM, s->connection->log, 0,
|
|
941 "stream proxy next upstream");
|
|
942
|
|
943 u = s->upstream;
|
|
944
|
|
945 if (u->peer.sockaddr) {
|
|
946 u->peer.free(&u->peer, u->peer.data, NGX_PEER_FAILED);
|
|
947 u->peer.sockaddr = NULL;
|
|
948 }
|
|
949
|
|
950 pscf = ngx_stream_get_module_srv_conf(s, ngx_stream_proxy_module);
|
|
951
|
|
952 timeout = pscf->next_upstream_timeout;
|
|
953
|
|
954 if (u->peer.tries == 0
|
|
955 || !pscf->next_upstream
|
|
956 || (timeout && ngx_current_msec - u->peer.start_time >= timeout))
|
|
957 {
|
|
958 ngx_stream_proxy_finalize(s, NGX_DECLINED);
|
|
959 return;
|
|
960 }
|
|
961
|
|
962 pc = u->peer.connection;
|
|
963
|
|
964 if (pc) {
|
|
965 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0,
|
|
966 "close proxy upstream connection: %d", pc->fd);
|
|
967
|
|
968 #if (NGX_STREAM_SSL)
|
|
969 if (pc->ssl) {
|
|
970 pc->ssl->no_wait_shutdown = 1;
|
|
971 pc->ssl->no_send_shutdown = 1;
|
|
972
|
|
973 (void) ngx_ssl_shutdown(pc);
|
|
974 }
|
|
975 #endif
|
|
976
|
|
977 ngx_close_connection(pc);
|
|
978 u->peer.connection = NULL;
|
|
979 }
|
|
980
|
|
981 ngx_stream_proxy_connect(s);
|
|
982 }
|
|
983
|
|
984
|
|
985 static void
|
|
986 ngx_stream_proxy_finalize(ngx_stream_session_t *s, ngx_int_t rc)
|
|
987 {
|
|
988 ngx_connection_t *pc;
|
|
989 ngx_stream_upstream_t *u;
|
|
990
|
|
991 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0,
|
|
992 "finalize stream proxy: %i", rc);
|
|
993
|
|
994 u = s->upstream;
|
|
995
|
|
996 if (u == NULL) {
|
|
997 goto noupstream;
|
|
998 }
|
|
999
|
|
1000 if (u->peer.free && u->peer.sockaddr) {
|
|
1001 u->peer.free(&u->peer, u->peer.data, 0);
|
|
1002 u->peer.sockaddr = NULL;
|
|
1003 }
|
|
1004
|
|
1005 pc = u->peer.connection;
|
|
1006
|
|
1007 if (pc) {
|
|
1008 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0,
|
|
1009 "close stream proxy upstream connection: %d", pc->fd);
|
|
1010
|
|
1011 #if (NGX_STREAM_SSL)
|
|
1012 if (pc->ssl) {
|
|
1013 pc->ssl->no_wait_shutdown = 1;
|
|
1014 (void) ngx_ssl_shutdown(pc);
|
|
1015 }
|
|
1016 #endif
|
|
1017
|
|
1018 ngx_close_connection(pc);
|
|
1019 u->peer.connection = NULL;
|
|
1020 }
|
|
1021
|
|
1022 noupstream:
|
|
1023
|
|
1024 ngx_stream_close_connection(s->connection);
|
|
1025 }
|
|
1026
|
|
1027
|
|
1028 static u_char *
|
|
1029 ngx_stream_proxy_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
1030 {
|
|
1031 u_char *p;
|
|
1032 ngx_connection_t *pc;
|
|
1033 ngx_stream_session_t *s;
|
|
1034 ngx_stream_upstream_t *u;
|
|
1035
|
|
1036 s = log->data;
|
|
1037
|
|
1038 u = s->upstream;
|
|
1039
|
|
1040 p = buf;
|
|
1041
|
|
1042 if (u->peer.name) {
|
|
1043 p = ngx_snprintf(p, len, ", upstream: \"%V\"", u->peer.name);
|
|
1044 len -= p - buf;
|
|
1045 }
|
|
1046
|
|
1047 pc = u->peer.connection;
|
|
1048
|
|
1049 p = ngx_snprintf(p, len,
|
|
1050 ", bytes from/to client:%O/%O"
|
|
1051 ", bytes from/to upstream:%O/%O",
|
|
1052 s->received, s->connection->sent,
|
|
1053 u->received, pc ? pc->sent : 0);
|
|
1054
|
|
1055 return p;
|
|
1056 }
|
|
1057
|
|
1058
|
|
1059 static void *
|
|
1060 ngx_stream_proxy_create_srv_conf(ngx_conf_t *cf)
|
|
1061 {
|
|
1062 ngx_stream_proxy_srv_conf_t *conf;
|
|
1063
|
|
1064 conf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_proxy_srv_conf_t));
|
|
1065 if (conf == NULL) {
|
|
1066 return NULL;
|
|
1067 }
|
|
1068
|
|
1069 /*
|
|
1070 * set by ngx_pcalloc():
|
|
1071 *
|
|
1072 * conf->ssl_protocols = 0;
|
|
1073 * conf->ssl_ciphers = { 0, NULL };
|
|
1074 * conf->ssl_name = { 0, NULL };
|
|
1075 * conf->ssl_trusted_certificate = { 0, NULL };
|
|
1076 * conf->ssl_crl = { 0, NULL };
|
|
1077 * conf->ssl_certificate = { 0, NULL };
|
|
1078 * conf->ssl_certificate_key = { 0, NULL };
|
|
1079 *
|
|
1080 * conf->ssl = NULL;
|
|
1081 * conf->upstream = NULL;
|
|
1082 */
|
|
1083
|
|
1084 conf->connect_timeout = NGX_CONF_UNSET_MSEC;
|
|
1085 conf->timeout = NGX_CONF_UNSET_MSEC;
|
|
1086 conf->next_upstream_timeout = NGX_CONF_UNSET_MSEC;
|
|
1087 conf->downstream_buf_size = NGX_CONF_UNSET_SIZE;
|
|
1088 conf->upstream_buf_size = NGX_CONF_UNSET_SIZE;
|
|
1089 conf->next_upstream_tries = NGX_CONF_UNSET_UINT;
|
|
1090 conf->next_upstream = NGX_CONF_UNSET;
|
|
1091
|
|
1092 #if (NGX_STREAM_SSL)
|
|
1093 conf->ssl_enable = NGX_CONF_UNSET;
|
|
1094 conf->ssl_session_reuse = NGX_CONF_UNSET;
|
|
1095 conf->ssl_server_name = NGX_CONF_UNSET;
|
|
1096 conf->ssl_verify = NGX_CONF_UNSET;
|
|
1097 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT;
|
|
1098 conf->ssl_passwords = NGX_CONF_UNSET_PTR;
|
|
1099 #endif
|
|
1100
|
|
1101 return conf;
|
|
1102 }
|
|
1103
|
|
1104
|
|
1105 static char *
|
|
1106 ngx_stream_proxy_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
1107 {
|
|
1108 ngx_stream_proxy_srv_conf_t *prev = parent;
|
|
1109 ngx_stream_proxy_srv_conf_t *conf = child;
|
|
1110
|
|
1111 ngx_conf_merge_msec_value(conf->connect_timeout,
|
|
1112 prev->connect_timeout, 60000);
|
|
1113
|
|
1114 ngx_conf_merge_msec_value(conf->timeout,
|
|
1115 prev->timeout, 10 * 60000);
|
|
1116
|
|
1117 ngx_conf_merge_msec_value(conf->next_upstream_timeout,
|
|
1118 prev->next_upstream_timeout, 0);
|
|
1119
|
|
1120 ngx_conf_merge_size_value(conf->downstream_buf_size,
|
|
1121 prev->downstream_buf_size, 16384);
|
|
1122
|
|
1123 ngx_conf_merge_size_value(conf->upstream_buf_size,
|
|
1124 prev->upstream_buf_size, 16384);
|
|
1125
|
|
1126 ngx_conf_merge_uint_value(conf->next_upstream_tries,
|
|
1127 prev->next_upstream_tries, 0);
|
|
1128
|
|
1129 ngx_conf_merge_value(conf->next_upstream, prev->next_upstream, 1);
|
|
1130
|
|
1131 #if (NGX_STREAM_SSL)
|
|
1132
|
|
1133 ngx_conf_merge_value(conf->ssl_enable, prev->ssl_enable, 0);
|
|
1134
|
|
1135 ngx_conf_merge_value(conf->ssl_session_reuse,
|
|
1136 prev->ssl_session_reuse, 1);
|
|
1137
|
|
1138 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols,
|
|
1139 (NGX_CONF_BITMASK_SET|NGX_SSL_SSLv3
|
|
1140 |NGX_SSL_TLSv1|NGX_SSL_TLSv1_1
|
|
1141 |NGX_SSL_TLSv1_2));
|
|
1142
|
|
1143 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, "DEFAULT");
|
|
1144
|
|
1145 ngx_conf_merge_str_value(conf->ssl_name, prev->ssl_name, "");
|
|
1146
|
|
1147 ngx_conf_merge_value(conf->ssl_server_name, prev->ssl_server_name, 0);
|
|
1148
|
|
1149 ngx_conf_merge_value(conf->ssl_verify, prev->ssl_verify, 0);
|
|
1150
|
|
1151 ngx_conf_merge_uint_value(conf->ssl_verify_depth,
|
|
1152 prev->ssl_verify_depth, 1);
|
|
1153
|
|
1154 ngx_conf_merge_str_value(conf->ssl_trusted_certificate,
|
|
1155 prev->ssl_trusted_certificate, "");
|
|
1156
|
|
1157 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, "");
|
|
1158
|
|
1159 ngx_conf_merge_str_value(conf->ssl_certificate,
|
|
1160 prev->ssl_certificate, "");
|
|
1161
|
|
1162 ngx_conf_merge_str_value(conf->ssl_certificate_key,
|
|
1163 prev->ssl_certificate_key, "");
|
|
1164
|
|
1165 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL);
|
|
1166
|
|
1167 if (conf->ssl_enable && ngx_stream_proxy_set_ssl(cf, conf) != NGX_OK) {
|
|
1168 return NGX_CONF_ERROR;
|
|
1169 }
|
|
1170
|
|
1171 #endif
|
|
1172
|
|
1173 return NGX_CONF_OK;
|
|
1174 }
|
|
1175
|
|
1176
|
|
1177 #if (NGX_STREAM_SSL)
|
|
1178
|
|
1179 static ngx_int_t
|
|
1180 ngx_stream_proxy_set_ssl(ngx_conf_t *cf, ngx_stream_proxy_srv_conf_t *pscf)
|
|
1181 {
|
|
1182 ngx_pool_cleanup_t *cln;
|
|
1183
|
|
1184 pscf->ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t));
|
|
1185 if (pscf->ssl == NULL) {
|
|
1186 return NGX_ERROR;
|
|
1187 }
|
|
1188
|
|
1189 pscf->ssl->log = cf->log;
|
|
1190
|
|
1191 if (ngx_ssl_create(pscf->ssl, pscf->ssl_protocols, NULL) != NGX_OK) {
|
|
1192 return NGX_ERROR;
|
|
1193 }
|
|
1194
|
|
1195 cln = ngx_pool_cleanup_add(cf->pool, 0);
|
|
1196 if (cln == NULL) {
|
|
1197 return NGX_ERROR;
|
|
1198 }
|
|
1199
|
|
1200 cln->handler = ngx_ssl_cleanup_ctx;
|
|
1201 cln->data = pscf->ssl;
|
|
1202
|
|
1203 if (pscf->ssl_certificate.len) {
|
|
1204
|
|
1205 if (pscf->ssl_certificate_key.len == 0) {
|
|
1206 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
1207 "no \"proxy_ssl_certificate_key\" is defined "
|
|
1208 "for certificate \"%V\"", &pscf->ssl_certificate);
|
|
1209 return NGX_ERROR;
|
|
1210 }
|
|
1211
|
|
1212 if (ngx_ssl_certificate(cf, pscf->ssl, &pscf->ssl_certificate,
|
|
1213 &pscf->ssl_certificate_key, pscf->ssl_passwords)
|
|
1214 != NGX_OK)
|
|
1215 {
|
|
1216 return NGX_ERROR;
|
|
1217 }
|
|
1218 }
|
|
1219
|
|
1220 if (SSL_CTX_set_cipher_list(pscf->ssl->ctx,
|
|
1221 (const char *) pscf->ssl_ciphers.data)
|
|
1222 == 0)
|
|
1223 {
|
|
1224 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
|
|
1225 "SSL_CTX_set_cipher_list(\"%V\") failed",
|
|
1226 &pscf->ssl_ciphers);
|
|
1227 return NGX_ERROR;
|
|
1228 }
|
|
1229
|
|
1230 if (pscf->ssl_verify) {
|
|
1231 if (pscf->ssl_trusted_certificate.len == 0) {
|
|
1232 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
1233 "no proxy_ssl_trusted_certificate for proxy_ssl_verify");
|
|
1234 return NGX_ERROR;
|
|
1235 }
|
|
1236
|
|
1237 if (ngx_ssl_trusted_certificate(cf, pscf->ssl,
|
|
1238 &pscf->ssl_trusted_certificate,
|
|
1239 pscf->ssl_verify_depth)
|
|
1240 != NGX_OK)
|
|
1241 {
|
|
1242 return NGX_ERROR;
|
|
1243 }
|
|
1244
|
|
1245 if (ngx_ssl_crl(cf, pscf->ssl, &pscf->ssl_crl) != NGX_OK) {
|
|
1246 return NGX_ERROR;
|
|
1247 }
|
|
1248 }
|
|
1249
|
|
1250 return NGX_OK;
|
|
1251 }
|
|
1252
|
|
1253 #endif
|
|
1254
|
|
1255
|
|
1256 static char *
|
|
1257 ngx_stream_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
1258 {
|
|
1259 ngx_stream_proxy_srv_conf_t *pscf = conf;
|
|
1260
|
|
1261 ngx_url_t u;
|
|
1262 ngx_str_t *value, *url;
|
|
1263 ngx_stream_core_srv_conf_t *cscf;
|
|
1264
|
|
1265 if (pscf->upstream) {
|
|
1266 return "is duplicate";
|
|
1267 }
|
|
1268
|
|
1269 cscf = ngx_stream_conf_get_module_srv_conf(cf, ngx_stream_core_module);
|
|
1270
|
|
1271 cscf->handler = ngx_stream_proxy_handler;
|
|
1272
|
|
1273 value = cf->args->elts;
|
|
1274
|
|
1275 url = &value[1];
|
|
1276
|
|
1277 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
1278
|
|
1279 u.url = *url;
|
|
1280 u.no_resolve = 1;
|
|
1281
|
|
1282 pscf->upstream = ngx_stream_upstream_add(cf, &u, 0);
|
|
1283 if (pscf->upstream == NULL) {
|
|
1284 return NGX_CONF_ERROR;
|
|
1285 }
|
|
1286
|
|
1287 return NGX_CONF_OK;
|
|
1288 }
|