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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 #ifndef _NGX_STREAM_H_INCLUDED_
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9 #define _NGX_STREAM_H_INCLUDED_
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10
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11
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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14
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15 #if (NGX_STREAM_SSL)
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16 #include <ngx_stream_ssl_module.h>
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17 #endif
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18
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19
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20 typedef struct ngx_stream_session_s ngx_stream_session_t;
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21
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22
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23 #include <ngx_stream_upstream.h>
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24 #include <ngx_stream_upstream_round_robin.h>
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25
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26
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27 typedef struct {
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28 void **main_conf;
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29 void **srv_conf;
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30 } ngx_stream_conf_ctx_t;
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31
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32
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33 typedef struct {
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34 u_char sockaddr[NGX_SOCKADDRLEN];
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35 socklen_t socklen;
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36
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37 /* server ctx */
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38 ngx_stream_conf_ctx_t *ctx;
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39
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40 unsigned bind:1;
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41 unsigned wildcard:1;
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42 #if (NGX_STREAM_SSL)
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43 unsigned ssl:1;
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44 #endif
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45 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
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46 unsigned ipv6only:1;
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47 #endif
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48 unsigned so_keepalive:2;
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49 #if (NGX_HAVE_KEEPALIVE_TUNABLE)
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50 int tcp_keepidle;
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51 int tcp_keepintvl;
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52 int tcp_keepcnt;
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53 #endif
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54 } ngx_stream_listen_t;
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55
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56
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57 typedef struct {
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58 ngx_stream_conf_ctx_t *ctx;
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59 ngx_str_t addr_text;
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60 #if (NGX_STREAM_SSL)
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61 ngx_uint_t ssl; /* unsigned ssl:1; */
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62 #endif
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63 } ngx_stream_addr_conf_t;
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64
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65 typedef struct {
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66 in_addr_t addr;
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67 ngx_stream_addr_conf_t conf;
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68 } ngx_stream_in_addr_t;
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69
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70
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71 #if (NGX_HAVE_INET6)
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72
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73 typedef struct {
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74 struct in6_addr addr6;
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75 ngx_stream_addr_conf_t conf;
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76 } ngx_stream_in6_addr_t;
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77
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78 #endif
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79
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80
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81 typedef struct {
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82 /* ngx_stream_in_addr_t or ngx_stream_in6_addr_t */
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83 void *addrs;
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84 ngx_uint_t naddrs;
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85 } ngx_stream_port_t;
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86
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87
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88 typedef struct {
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89 int family;
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90 in_port_t port;
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91 ngx_array_t addrs; /* array of ngx_stream_conf_addr_t */
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92 } ngx_stream_conf_port_t;
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93
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94
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95 typedef struct {
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96 struct sockaddr *sockaddr;
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97 socklen_t socklen;
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98
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99 ngx_stream_conf_ctx_t *ctx;
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100
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101 unsigned bind:1;
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102 unsigned wildcard:1;
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103 #if (NGX_STREAM_SSL)
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104 unsigned ssl:1;
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105 #endif
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106 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
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107 unsigned ipv6only:1;
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108 #endif
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109 unsigned so_keepalive:2;
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110 #if (NGX_HAVE_KEEPALIVE_TUNABLE)
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111 int tcp_keepidle;
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112 int tcp_keepintvl;
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113 int tcp_keepcnt;
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114 #endif
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115 } ngx_stream_conf_addr_t;
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116
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117
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118 typedef struct {
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119 ngx_array_t servers; /* ngx_stream_core_srv_conf_t */
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120 ngx_array_t listen; /* ngx_stream_listen_t */
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121 } ngx_stream_core_main_conf_t;
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122
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123
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124 typedef void (*ngx_stream_handler_pt)(ngx_stream_session_t *s);
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125
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126
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127 typedef struct {
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128 ngx_stream_handler_pt handler;
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129 ngx_stream_conf_ctx_t *ctx;
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130 u_char *file_name;
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131 ngx_int_t line;
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132 ngx_log_t *error_log;
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133 } ngx_stream_core_srv_conf_t;
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134
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135
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136 struct ngx_stream_session_s {
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137 uint32_t signature; /* "STRM" */
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138
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139 ngx_connection_t *connection;
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140
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141 off_t received;
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142
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143 ngx_log_handler_pt log_handler;
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144
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145 void **ctx;
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146 void **main_conf;
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147 void **srv_conf;
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148
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149 ngx_stream_upstream_t *upstream;
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150 };
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151
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152
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153 typedef struct {
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154 void *(*create_main_conf)(ngx_conf_t *cf);
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155 char *(*init_main_conf)(ngx_conf_t *cf, void *conf);
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156
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157 void *(*create_srv_conf)(ngx_conf_t *cf);
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158 char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev,
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159 void *conf);
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160 } ngx_stream_module_t;
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161
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162
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163 #define NGX_STREAM_MODULE 0x4d525453 /* "STRM" */
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164
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165 #define NGX_STREAM_MAIN_CONF 0x02000000
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166 #define NGX_STREAM_SRV_CONF 0x04000000
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167 #define NGX_STREAM_UPS_CONF 0x08000000
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168
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169
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170 #define NGX_STREAM_MAIN_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, main_conf)
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171 #define NGX_STREAM_SRV_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, srv_conf)
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172
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173
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174 #define ngx_stream_get_module_ctx(s, module) (s)->ctx[module.ctx_index]
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175 #define ngx_stream_set_ctx(s, c, module) s->ctx[module.ctx_index] = c;
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176 #define ngx_stream_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL;
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177
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178
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179 #define ngx_stream_get_module_main_conf(s, module) \
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180 (s)->main_conf[module.ctx_index]
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181 #define ngx_stream_get_module_srv_conf(s, module) \
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182 (s)->srv_conf[module.ctx_index]
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183
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184 #define ngx_stream_conf_get_module_main_conf(cf, module) \
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185 ((ngx_stream_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index]
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186 #define ngx_stream_conf_get_module_srv_conf(cf, module) \
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187 ((ngx_stream_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index]
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188
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189 #define ngx_stream_cycle_get_module_main_conf(cycle, module) \
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190 (cycle->conf_ctx[ngx_stream_module.index] ? \
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191 ((ngx_stream_conf_ctx_t *) cycle->conf_ctx[ngx_stream_module.index]) \
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192 ->main_conf[module.ctx_index]: \
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193 NULL)
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194
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195
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196 void ngx_stream_init_connection(ngx_connection_t *c);
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197 void ngx_stream_close_connection(ngx_connection_t *c);
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198
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199
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200 extern ngx_module_t ngx_stream_module;
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201 extern ngx_uint_t ngx_stream_max_module;
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202 extern ngx_module_t ngx_stream_core_module;
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203
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204
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205 #endif /* _NGX_STREAM_H_INCLUDED_ */
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