annotate src/stream/ngx_stream.h @ 6719:cebf5fed00bf

Modules compatibility: removed unneeded IPV6_V6ONLY checks. The IPV6_V6ONLY macro is now checked only while parsing appropriate flag and when using the macro. The ipv6only field in listen structures is always initialized to 1, even if not supported on a given platform. This is expected to prevent a module compiled without IPV6_V6ONLY from accidentally creating dual sockets if loaded into main binary with proper IPV6_V6ONLY support.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 03 Oct 2016 15:58:25 +0300
parents 90a03b1dc4db
children 9170240f1241
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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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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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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_variables.h>
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24 #include <ngx_stream_script.h>
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25 #include <ngx_stream_upstream.h>
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26 #include <ngx_stream_upstream_round_robin.h>
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27
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28
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29 #define NGX_STREAM_OK 200
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30 #define NGX_STREAM_BAD_REQUEST 400
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31 #define NGX_STREAM_FORBIDDEN 403
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32 #define NGX_STREAM_INTERNAL_SERVER_ERROR 500
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33 #define NGX_STREAM_BAD_GATEWAY 502
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34 #define NGX_STREAM_SERVICE_UNAVAILABLE 503
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35
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36
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37 typedef struct {
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38 void **main_conf;
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39 void **srv_conf;
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40 } ngx_stream_conf_ctx_t;
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41
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43 typedef struct {
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44 ngx_sockaddr_t sockaddr;
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45 socklen_t socklen;
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46
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47 /* server ctx */
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48 ngx_stream_conf_ctx_t *ctx;
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49
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50 unsigned bind:1;
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51 unsigned wildcard:1;
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52 #if (NGX_STREAM_SSL)
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53 unsigned ssl:1;
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54 #endif
6719
cebf5fed00bf Modules compatibility: removed unneeded IPV6_V6ONLY checks.
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55 #if (NGX_HAVE_INET6)
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56 unsigned ipv6only:1;
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57 #endif
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58 #if (NGX_HAVE_REUSEPORT)
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59 unsigned reuseport:1;
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60 #endif
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61 unsigned so_keepalive:2;
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62 unsigned proxy_protocol:1;
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63 #if (NGX_HAVE_KEEPALIVE_TUNABLE)
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64 int tcp_keepidle;
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65 int tcp_keepintvl;
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66 int tcp_keepcnt;
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67 #endif
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68 int backlog;
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69 int type;
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70 } ngx_stream_listen_t;
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73 typedef struct {
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74 ngx_stream_conf_ctx_t *ctx;
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75 ngx_str_t addr_text;
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76 #if (NGX_STREAM_SSL)
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77 unsigned ssl:1;
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78 #endif
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79 unsigned proxy_protocol:1;
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80 } ngx_stream_addr_conf_t;
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81
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82 typedef struct {
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83 in_addr_t addr;
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84 ngx_stream_addr_conf_t conf;
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85 } ngx_stream_in_addr_t;
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86
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87
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88 #if (NGX_HAVE_INET6)
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89
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90 typedef struct {
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91 struct in6_addr addr6;
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92 ngx_stream_addr_conf_t conf;
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93 } ngx_stream_in6_addr_t;
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94
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95 #endif
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96
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98 typedef struct {
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99 /* ngx_stream_in_addr_t or ngx_stream_in6_addr_t */
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100 void *addrs;
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101 ngx_uint_t naddrs;
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102 } ngx_stream_port_t;
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103
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104
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105 typedef struct {
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106 int family;
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107 int type;
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108 in_port_t port;
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109 ngx_array_t addrs; /* array of ngx_stream_conf_addr_t */
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110 } ngx_stream_conf_port_t;
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111
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112
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113 typedef struct {
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114 ngx_stream_listen_t opt;
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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 enum {
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119 NGX_STREAM_POST_ACCEPT_PHASE = 0,
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120 NGX_STREAM_PREACCESS_PHASE,
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121 NGX_STREAM_ACCESS_PHASE,
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122 #if (NGX_STREAM_SSL)
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123 NGX_STREAM_SSL_PHASE,
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124 #endif
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125 NGX_STREAM_PREREAD_PHASE,
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126 NGX_STREAM_CONTENT_PHASE,
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127 NGX_STREAM_LOG_PHASE
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128 } ngx_stream_phases;
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129
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130
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131 typedef struct ngx_stream_phase_handler_s ngx_stream_phase_handler_t;
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132
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133 typedef ngx_int_t (*ngx_stream_phase_handler_pt)(ngx_stream_session_t *s,
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134 ngx_stream_phase_handler_t *ph);
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135 typedef ngx_int_t (*ngx_stream_handler_pt)(ngx_stream_session_t *s);
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136 typedef void (*ngx_stream_content_handler_pt)(ngx_stream_session_t *s);
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137
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138
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139 struct ngx_stream_phase_handler_s {
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140 ngx_stream_phase_handler_pt checker;
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141 ngx_stream_handler_pt handler;
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142 ngx_uint_t next;
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143 };
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144
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145
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146 typedef struct {
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147 ngx_stream_phase_handler_t *handlers;
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diff changeset
148 } ngx_stream_phase_engine_t;
3908156a51fa Stream: phases.
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parents: 6692
diff changeset
149
3908156a51fa Stream: phases.
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parents: 6692
diff changeset
150
3908156a51fa Stream: phases.
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parents: 6692
diff changeset
151 typedef struct {
3908156a51fa Stream: phases.
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parents: 6692
diff changeset
152 ngx_array_t handlers;
3908156a51fa Stream: phases.
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parents: 6692
diff changeset
153 } ngx_stream_phase_t;
6175
8807a2369b1a Stream: access module.
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diff changeset
154
8807a2369b1a Stream: access module.
Vladimir Homutov <vl@nginx.com>
parents: 6174
diff changeset
155
6115
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diff changeset
156 typedef struct {
6607
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diff changeset
157 ngx_array_t servers; /* ngx_stream_core_srv_conf_t */
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parents: 6606
diff changeset
158 ngx_array_t listen; /* ngx_stream_listen_t */
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diff changeset
159
6693
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parents: 6692
diff changeset
160 ngx_stream_phase_engine_t phase_engine;
6607
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161
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diff changeset
162 ngx_hash_t variables_hash;
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diff changeset
163
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diff changeset
164 ngx_array_t variables; /* ngx_stream_variable_t */
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diff changeset
165 ngx_uint_t ncaptures;
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diff changeset
166
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diff changeset
167 ngx_uint_t variables_hash_max_size;
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diff changeset
168 ngx_uint_t variables_hash_bucket_size;
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diff changeset
169
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diff changeset
170 ngx_hash_keys_arrays_t *variables_keys;
6693
3908156a51fa Stream: phases.
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parents: 6692
diff changeset
171
3908156a51fa Stream: phases.
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diff changeset
172 ngx_stream_phase_t phases[NGX_STREAM_LOG_PHASE + 1];
6115
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173 } ngx_stream_core_main_conf_t;
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174
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175
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parents:
diff changeset
176 typedef struct {
6693
3908156a51fa Stream: phases.
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parents: 6692
diff changeset
177 ngx_stream_content_handler_pt handler;
6607
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diff changeset
178
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diff changeset
179 ngx_stream_conf_ctx_t *ctx;
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diff changeset
180
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diff changeset
181 u_char *file_name;
6656
a2f57dfa65a9 Fixed wrong type of the "line" field.
Roman Arutyunyan <arut@nginx.com>
parents: 6618
diff changeset
182 ngx_uint_t line;
6607
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diff changeset
183
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diff changeset
184 ngx_flag_t tcp_nodelay;
6694
ea9dfe2f62e7 Stream: preread phase.
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diff changeset
185 size_t preread_buffer_size;
ea9dfe2f62e7 Stream: preread phase.
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diff changeset
186 ngx_msec_t preread_timeout;
6607
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diff changeset
187
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diff changeset
188 ngx_log_t *error_log;
6618
070c31a482e6 Stream: resolver.
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parents: 6607
diff changeset
189
070c31a482e6 Stream: resolver.
Vladimir Homutov <vl@nginx.com>
parents: 6607
diff changeset
190 ngx_msec_t resolver_timeout;
070c31a482e6 Stream: resolver.
Vladimir Homutov <vl@nginx.com>
parents: 6607
diff changeset
191 ngx_resolver_t *resolver;
6657
3d5202c71f94 Ensure "listen" exists in a mail or stream server (ticket #1049).
Roman Arutyunyan <arut@nginx.com>
parents: 6656
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192
6680
7357abd1fa8c Stream: the "proxy_protocol" parameter of the "listen" directive.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6679
diff changeset
193 ngx_msec_t proxy_protocol_timeout;
7357abd1fa8c Stream: the "proxy_protocol" parameter of the "listen" directive.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6679
diff changeset
194
6657
3d5202c71f94 Ensure "listen" exists in a mail or stream server (ticket #1049).
Roman Arutyunyan <arut@nginx.com>
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diff changeset
195 ngx_uint_t listen; /* unsigned listen:1; */
6115
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parents:
diff changeset
196 } ngx_stream_core_srv_conf_t;
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diff changeset
197
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diff changeset
198
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parents:
diff changeset
199 struct ngx_stream_session_s {
6607
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diff changeset
200 uint32_t signature; /* "STRM" */
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diff changeset
201
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parents: 6606
diff changeset
202 ngx_connection_t *connection;
6115
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diff changeset
203
6607
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diff changeset
204 off_t received;
6669
164a0824ce20 Stream: the $session_time variable.
Vladimir Homutov <vl@nginx.com>
parents: 6657
diff changeset
205 time_t start_sec;
164a0824ce20 Stream: the $session_time variable.
Vladimir Homutov <vl@nginx.com>
parents: 6657
diff changeset
206 ngx_msec_t start_msec;
6115
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diff changeset
207
6607
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diff changeset
208 ngx_log_handler_pt log_handler;
6115
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parents:
diff changeset
209
6607
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diff changeset
210 void **ctx;
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diff changeset
211 void **main_conf;
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diff changeset
212 void **srv_conf;
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diff changeset
213
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parents: 6606
diff changeset
214 ngx_stream_upstream_t *upstream;
6675
ab9b4fd8c5b7 Stream: the $upstream_addr variable.
Vladimir Homutov <vl@nginx.com>
parents: 6674
diff changeset
215 ngx_array_t *upstream_states;
ab9b4fd8c5b7 Stream: the $upstream_addr variable.
Vladimir Homutov <vl@nginx.com>
parents: 6674
diff changeset
216 /* of ngx_stream_upstream_state_t */
6607
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diff changeset
217 ngx_stream_variable_value_t *variables;
6115
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diff changeset
218
6607
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diff changeset
219 #if (NGX_PCRE)
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diff changeset
220 ngx_uint_t ncaptures;
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diff changeset
221 int *captures;
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diff changeset
222 u_char *captures_data;
c70b7f4537e1 Stream: variables and script.
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diff changeset
223 #endif
6674
38143d1abdec Stream: the $status variable.
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parents: 6669
diff changeset
224
6693
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diff changeset
225 ngx_int_t phase_handler;
6674
38143d1abdec Stream: the $status variable.
Roman Arutyunyan <arut@nginx.com>
parents: 6669
diff changeset
226 ngx_uint_t status;
6679
40e8ce405859 Stream: postpone session initialization under accept mutex.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6678
diff changeset
227
40e8ce405859 Stream: postpone session initialization under accept mutex.
Dmitry Volyntsev <xeioex@nginx.com>
parents: 6678
diff changeset
228 #if (NGX_STREAM_SSL)
6710
3ab8736958cb Modules compatibility: health check fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6694
diff changeset
229 unsigned ssl:1;
6679
40e8ce405859 Stream: postpone session initialization under accept mutex.
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parents: 6678
diff changeset
230 #endif
6710
3ab8736958cb Modules compatibility: health check fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6694
diff changeset
231
6711
90a03b1dc4db Modules compatibility: status fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6710
diff changeset
232 unsigned stat_processing:1;
90a03b1dc4db Modules compatibility: status fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6710
diff changeset
233
6710
3ab8736958cb Modules compatibility: health check fields.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6694
diff changeset
234 unsigned health_check:1;
6115
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diff changeset
235 };
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diff changeset
236
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diff changeset
237
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parents:
diff changeset
238 typedef struct {
6607
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diff changeset
239 ngx_int_t (*preconfiguration)(ngx_conf_t *cf);
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parents: 6606
diff changeset
240 ngx_int_t (*postconfiguration)(ngx_conf_t *cf);
6174
68c106e6fa0a Stream: added postconfiguration method to stream modules.
Vladimir Homutov <vl@nginx.com>
parents: 6172
diff changeset
241
6607
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diff changeset
242 void *(*create_main_conf)(ngx_conf_t *cf);
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parents: 6606
diff changeset
243 char *(*init_main_conf)(ngx_conf_t *cf, void *conf);
6115
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diff changeset
244
6607
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diff changeset
245 void *(*create_srv_conf)(ngx_conf_t *cf);
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Vladimir Homutov <vl@nginx.com>
parents: 6606
diff changeset
246 char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev,
c70b7f4537e1 Stream: variables and script.
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parents: 6606
diff changeset
247 void *conf);
6115
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
248 } ngx_stream_module_t;
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diff changeset
249
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parents:
diff changeset
250
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parents:
diff changeset
251 #define NGX_STREAM_MODULE 0x4d525453 /* "STRM" */
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diff changeset
252
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parents:
diff changeset
253 #define NGX_STREAM_MAIN_CONF 0x02000000
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
254 #define NGX_STREAM_SRV_CONF 0x04000000
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
255 #define NGX_STREAM_UPS_CONF 0x08000000
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parents:
diff changeset
256
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
257
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
258 #define NGX_STREAM_MAIN_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, main_conf)
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
259 #define NGX_STREAM_SRV_CONF_OFFSET offsetof(ngx_stream_conf_ctx_t, srv_conf)
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diff changeset
260
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diff changeset
261
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
262 #define ngx_stream_get_module_ctx(s, module) (s)->ctx[module.ctx_index]
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parents:
diff changeset
263 #define ngx_stream_set_ctx(s, c, module) s->ctx[module.ctx_index] = c;
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
264 #define ngx_stream_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL;
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
265
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
266
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parents:
diff changeset
267 #define ngx_stream_get_module_main_conf(s, module) \
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parents:
diff changeset
268 (s)->main_conf[module.ctx_index]
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parents:
diff changeset
269 #define ngx_stream_get_module_srv_conf(s, module) \
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parents:
diff changeset
270 (s)->srv_conf[module.ctx_index]
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parents:
diff changeset
271
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parents:
diff changeset
272 #define ngx_stream_conf_get_module_main_conf(cf, module) \
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diff changeset
273 ((ngx_stream_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index]
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parents:
diff changeset
274 #define ngx_stream_conf_get_module_srv_conf(cf, module) \
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diff changeset
275 ((ngx_stream_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index]
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diff changeset
276
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diff changeset
277 #define ngx_stream_cycle_get_module_main_conf(cycle, module) \
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parents:
diff changeset
278 (cycle->conf_ctx[ngx_stream_module.index] ? \
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diff changeset
279 ((ngx_stream_conf_ctx_t *) cycle->conf_ctx[ngx_stream_module.index]) \
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parents:
diff changeset
280 ->main_conf[module.ctx_index]: \
61d7ae76647d Stream: port from NGINX+.
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parents:
diff changeset
281 NULL)
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diff changeset
282
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diff changeset
283
6692
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
284 #define NGX_STREAM_WRITE_BUFFERED 0x10
56fc55e32f23 Stream: filters.
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parents: 6684
diff changeset
285
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
286
6693
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
287 void ngx_stream_core_run_phases(ngx_stream_session_t *s);
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
288 ngx_int_t ngx_stream_core_generic_phase(ngx_stream_session_t *s,
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
289 ngx_stream_phase_handler_t *ph);
6694
ea9dfe2f62e7 Stream: preread phase.
Vladimir Homutov <vl@nginx.com>
parents: 6693
diff changeset
290 ngx_int_t ngx_stream_core_preread_phase(ngx_stream_session_t *s,
ea9dfe2f62e7 Stream: preread phase.
Vladimir Homutov <vl@nginx.com>
parents: 6693
diff changeset
291 ngx_stream_phase_handler_t *ph);
6693
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
292 ngx_int_t ngx_stream_core_content_phase(ngx_stream_session_t *s,
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
293 ngx_stream_phase_handler_t *ph);
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
294
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
295
6115
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
296 void ngx_stream_init_connection(ngx_connection_t *c);
6693
3908156a51fa Stream: phases.
Roman Arutyunyan <arut@nginx.com>
parents: 6692
diff changeset
297 void ngx_stream_session_handler(ngx_event_t *rev);
6674
38143d1abdec Stream: the $status variable.
Roman Arutyunyan <arut@nginx.com>
parents: 6669
diff changeset
298 void ngx_stream_finalize_session(ngx_stream_session_t *s, ngx_uint_t rc);
6115
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
299
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
300
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
301 extern ngx_module_t ngx_stream_module;
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
302 extern ngx_uint_t ngx_stream_max_module;
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
303 extern ngx_module_t ngx_stream_core_module;
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
304
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
305
6692
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
306 typedef ngx_int_t (*ngx_stream_filter_pt)(ngx_stream_session_t *s,
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
307 ngx_chain_t *chain, ngx_uint_t from_upstream);
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
308
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
309
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
310 extern ngx_stream_filter_pt ngx_stream_top_filter;
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
311
56fc55e32f23 Stream: filters.
Roman Arutyunyan <arut@nginx.com>
parents: 6684
diff changeset
312
6115
61d7ae76647d Stream: port from NGINX+.
Ruslan Ermilov <ru@nginx.com>
parents:
diff changeset
313 #endif /* _NGX_STREAM_H_INCLUDED_ */