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annotate src/http/v3/ngx_http_v3_module.c @ 8484:d41a0cafacff quic

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HTTP/3: do not call shutdown() for QUIC streams. Previously, this triggered an alert "shutdown() failed" in error log.
author Roman Arutyunyan <arut@nginx.com>
date Wed, 22 Jul 2020 11:03:42 +0300
parents 0d2b2664b41c
children 65c1fc5fae15
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 * Copyright (C) Roman Arutyunyan
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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_http.h>
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11
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12
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13 static ngx_command_t ngx_http_v3_commands[] = {
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14
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15 { ngx_string("http3_max_field_size"),
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16 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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17 ngx_conf_set_size_slot,
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18 NGX_HTTP_SRV_CONF_OFFSET,
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19 offsetof(ngx_http_v3_srv_conf_t, max_field_size),
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20 NULL },
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21
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22 { ngx_string("http3_max_table_capacity"),
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23 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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24 ngx_conf_set_size_slot,
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25 NGX_HTTP_SRV_CONF_OFFSET,
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26 offsetof(ngx_http_v3_srv_conf_t, max_table_capacity),
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27 NULL },
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28
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29 { ngx_string("http3_max_blocked_streams"),
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30 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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31 ngx_conf_set_num_slot,
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32 NGX_HTTP_SRV_CONF_OFFSET,
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33 offsetof(ngx_http_v3_srv_conf_t, max_blocked_streams),
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34 NULL },
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35
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36 ngx_null_command
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37 };
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38
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39
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40 static ngx_int_t ngx_http_variable_http3(ngx_http_request_t *r,
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41 ngx_http_variable_value_t *v, uintptr_t data);
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42 static ngx_int_t ngx_http_v3_add_variables(ngx_conf_t *cf);
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43 static void *ngx_http_v3_create_srv_conf(ngx_conf_t *cf);
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44 static char *ngx_http_v3_merge_srv_conf(ngx_conf_t *cf,
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45 void *parent, void *child);
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46
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47
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48 static ngx_http_module_t ngx_http_v3_module_ctx = {
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49 ngx_http_v3_add_variables, /* preconfiguration */
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50 NULL, /* postconfiguration */
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51
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52 NULL, /* create main configuration */
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53 NULL, /* init main configuration */
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54
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55 ngx_http_v3_create_srv_conf, /* create server configuration */
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56 ngx_http_v3_merge_srv_conf, /* merge server configuration */
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57
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58 NULL, /* create location configuration */
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59 NULL /* merge location configuration */
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60 };
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61
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62
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63 ngx_module_t ngx_http_v3_module = {
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64 NGX_MODULE_V1,
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65 &ngx_http_v3_module_ctx, /* module context */
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66 ngx_http_v3_commands, /* module directives */
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67 NGX_HTTP_MODULE, /* module type */
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68 NULL, /* init master */
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69 NULL, /* init module */
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70 NULL, /* init process */
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71 NULL, /* init thread */
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72 NULL, /* exit thread */
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73 NULL, /* exit process */
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74 NULL, /* exit master */
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75 NGX_MODULE_V1_PADDING
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76 };
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77
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78
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79 static ngx_http_variable_t ngx_http_v3_vars[] = {
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80
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81 { ngx_string("http3"), NULL, ngx_http_variable_http3,
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82 0, 0, 0 },
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83
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84 ngx_http_null_variable
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85 };
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86
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87
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88 static ngx_int_t
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89 ngx_http_variable_http3(ngx_http_request_t *r,
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90 ngx_http_variable_value_t *v, uintptr_t data)
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91 {
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92 v->valid = 1;
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93 v->no_cacheable = 1;
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94 v->not_found = 0;
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95
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96 v->data = ngx_pnalloc(r->pool, sizeof("h3-xx") - 1);
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97 if (v->data == NULL) {
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98 return NGX_ERROR;
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99 }
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100
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101 v->len = ngx_sprintf(v->data, "h3-%d", NGX_QUIC_DRAFT_VERSION) - v->data;
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102
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103 return NGX_OK;
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104 }
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105
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106
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107 static ngx_int_t
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108 ngx_http_v3_add_variables(ngx_conf_t *cf)
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109 {
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110 ngx_http_variable_t *var, *v;
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111
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112 for (v = ngx_http_v3_vars; v->name.len; v++) {
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113 var = ngx_http_add_variable(cf, &v->name, v->flags);
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114 if (var == NULL) {
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115 return NGX_ERROR;
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116 }
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117
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118 var->get_handler = v->get_handler;
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119 var->data = v->data;
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120 }
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121
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122 return NGX_OK;
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123 }
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124
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125
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126
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127 static void *
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128 ngx_http_v3_create_srv_conf(ngx_conf_t *cf)
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129 {
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130 ngx_http_v3_srv_conf_t *v3cf;
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131
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132 v3cf = ngx_pcalloc(cf->pool, sizeof(ngx_http_v3_srv_conf_t));
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133 if (v3cf == NULL) {
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134 return NULL;
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135 }
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136
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137 v3cf->max_field_size = NGX_CONF_UNSET_SIZE;
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138 v3cf->max_table_capacity = NGX_CONF_UNSET_SIZE;
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139 v3cf->max_blocked_streams = NGX_CONF_UNSET_UINT;
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140
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e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 8215
diff changeset
141 return v3cf;
e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 8215
diff changeset
142 }
e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 8215
diff changeset
143
e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 8215
diff changeset
144
e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 8215
diff changeset
145 static char *
e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 8215
diff changeset
146 ngx_http_v3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 8215
diff changeset
147 {
e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 8215
diff changeset
148 ngx_http_v3_srv_conf_t *prev = parent;
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Vladimir Homutov <vl@nginx.com>
parents: 8215
diff changeset
149 ngx_http_v3_srv_conf_t *conf = child;
e9891e8ee975 Configurable transport parameters.
Vladimir Homutov <vl@nginx.com>
parents: 8215
diff changeset
150
8454
032cb35ce758 HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents: 8417
diff changeset
151 ngx_conf_merge_size_value(conf->max_field_size,
032cb35ce758 HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents: 8417
diff changeset
152 prev->max_field_size,
032cb35ce758 HTTP/3: http3_max_field_size directive to limit string size.
Roman Arutyunyan <arut@nginx.com>
parents: 8417
diff changeset
153 NGX_HTTP_V3_DEFAULT_MAX_FIELD_SIZE);
8383
7ea34e13937f Address validation using Retry packets.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8353
diff changeset
154
8456
c9538aef3211 HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents: 8454
diff changeset
155 ngx_conf_merge_size_value(conf->max_table_capacity,
c9538aef3211 HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents: 8454
diff changeset
156 prev->max_table_capacity,
c9538aef3211 HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents: 8454
diff changeset
157 NGX_HTTP_V3_DEFAULT_MAX_TABLE_CAPACITY);
c9538aef3211 HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents: 8454
diff changeset
158
c9538aef3211 HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents: 8454
diff changeset
159 ngx_conf_merge_uint_value(conf->max_blocked_streams,
c9538aef3211 HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents: 8454
diff changeset
160 prev->max_blocked_streams,
c9538aef3211 HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents: 8454
diff changeset
161 NGX_HTTP_V3_DEFAULT_MAX_BLOCKED_STREAMS);
c9538aef3211 HTTP/3: refactored dynamic table implementation.
Roman Arutyunyan <arut@nginx.com>
parents: 8454
diff changeset
162
8353
036164360fa9 HTTP/3: directives with limited values converted to post handler.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8352
diff changeset
163 return NGX_CONF_OK;
036164360fa9 HTTP/3: directives with limited values converted to post handler.
Sergey Kandaurov <pluknet@nginx.com>
parents: 8352
diff changeset
164 }