mirror of
https://github.com/nginx/nginx.git
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409 lines
11 KiB
C
409 lines
11 KiB
C
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/*
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* Copyright (C) Nginx, Inc.
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* Copyright (C) Valentin V. Bartenev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_http.h>
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#include <ngx_http_spdy_module.h>
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static ngx_int_t ngx_http_spdy_add_variables(ngx_conf_t *cf);
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static ngx_int_t ngx_http_spdy_variable(ngx_http_request_t *r,
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ngx_http_variable_value_t *v, uintptr_t data);
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static ngx_int_t ngx_http_spdy_request_priority_variable(ngx_http_request_t *r,
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ngx_http_variable_value_t *v, uintptr_t data);
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static ngx_int_t ngx_http_spdy_module_init(ngx_cycle_t *cycle);
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static void *ngx_http_spdy_create_main_conf(ngx_conf_t *cf);
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static char *ngx_http_spdy_init_main_conf(ngx_conf_t *cf, void *conf);
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static void *ngx_http_spdy_create_srv_conf(ngx_conf_t *cf);
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static char *ngx_http_spdy_merge_srv_conf(ngx_conf_t *cf, void *parent,
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void *child);
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static void *ngx_http_spdy_create_loc_conf(ngx_conf_t *cf);
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static char *ngx_http_spdy_merge_loc_conf(ngx_conf_t *cf, void *parent,
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void *child);
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static char *ngx_http_spdy_recv_buffer_size(ngx_conf_t *cf, void *post,
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void *data);
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static char *ngx_http_spdy_pool_size(ngx_conf_t *cf, void *post, void *data);
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static char *ngx_http_spdy_streams_index_mask(ngx_conf_t *cf, void *post,
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void *data);
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static char *ngx_http_spdy_chunk_size(ngx_conf_t *cf, void *post, void *data);
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static ngx_conf_num_bounds_t ngx_http_spdy_headers_comp_bounds = {
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ngx_conf_check_num_bounds, 0, 9
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};
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static ngx_conf_post_t ngx_http_spdy_recv_buffer_size_post =
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{ ngx_http_spdy_recv_buffer_size };
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static ngx_conf_post_t ngx_http_spdy_pool_size_post =
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{ ngx_http_spdy_pool_size };
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static ngx_conf_post_t ngx_http_spdy_streams_index_mask_post =
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{ ngx_http_spdy_streams_index_mask };
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static ngx_conf_post_t ngx_http_spdy_chunk_size_post =
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{ ngx_http_spdy_chunk_size };
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static ngx_command_t ngx_http_spdy_commands[] = {
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{ ngx_string("spdy_recv_buffer_size"),
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NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_size_slot,
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NGX_HTTP_MAIN_CONF_OFFSET,
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offsetof(ngx_http_spdy_main_conf_t, recv_buffer_size),
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&ngx_http_spdy_recv_buffer_size_post },
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{ ngx_string("spdy_pool_size"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_size_slot,
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NGX_HTTP_SRV_CONF_OFFSET,
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offsetof(ngx_http_spdy_srv_conf_t, pool_size),
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&ngx_http_spdy_pool_size_post },
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{ ngx_string("spdy_max_concurrent_streams"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_num_slot,
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NGX_HTTP_SRV_CONF_OFFSET,
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offsetof(ngx_http_spdy_srv_conf_t, concurrent_streams),
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NULL },
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{ ngx_string("spdy_streams_index_size"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_num_slot,
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NGX_HTTP_SRV_CONF_OFFSET,
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offsetof(ngx_http_spdy_srv_conf_t, streams_index_mask),
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&ngx_http_spdy_streams_index_mask_post },
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{ ngx_string("spdy_recv_timeout"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_msec_slot,
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NGX_HTTP_SRV_CONF_OFFSET,
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offsetof(ngx_http_spdy_srv_conf_t, recv_timeout),
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NULL },
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{ ngx_string("spdy_keepalive_timeout"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_msec_slot,
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NGX_HTTP_SRV_CONF_OFFSET,
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offsetof(ngx_http_spdy_srv_conf_t, keepalive_timeout),
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NULL },
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{ ngx_string("spdy_headers_comp"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_num_slot,
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NGX_HTTP_SRV_CONF_OFFSET,
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offsetof(ngx_http_spdy_srv_conf_t, headers_comp),
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&ngx_http_spdy_headers_comp_bounds },
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{ ngx_string("spdy_chunk_size"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_size_slot,
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NGX_HTTP_LOC_CONF_OFFSET,
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offsetof(ngx_http_spdy_loc_conf_t, chunk_size),
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&ngx_http_spdy_chunk_size_post },
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ngx_null_command
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};
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static ngx_http_module_t ngx_http_spdy_module_ctx = {
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ngx_http_spdy_add_variables, /* preconfiguration */
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NULL, /* postconfiguration */
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ngx_http_spdy_create_main_conf, /* create main configuration */
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ngx_http_spdy_init_main_conf, /* init main configuration */
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ngx_http_spdy_create_srv_conf, /* create server configuration */
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ngx_http_spdy_merge_srv_conf, /* merge server configuration */
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ngx_http_spdy_create_loc_conf, /* create location configuration */
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ngx_http_spdy_merge_loc_conf /* merge location configuration */
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};
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ngx_module_t ngx_http_spdy_module = {
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NGX_MODULE_V1,
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&ngx_http_spdy_module_ctx, /* module context */
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ngx_http_spdy_commands, /* module directives */
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NGX_HTTP_MODULE, /* module type */
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NULL, /* init master */
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ngx_http_spdy_module_init, /* init module */
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NULL, /* init process */
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NULL, /* init thread */
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NULL, /* exit thread */
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NULL, /* exit process */
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NULL, /* exit master */
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NGX_MODULE_V1_PADDING
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};
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static ngx_http_variable_t ngx_http_spdy_vars[] = {
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{ ngx_string("spdy"), NULL,
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ngx_http_spdy_variable, 0, 0, 0 },
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{ ngx_string("spdy_request_priority"), NULL,
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ngx_http_spdy_request_priority_variable, 0, 0, 0 },
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{ ngx_null_string, NULL, NULL, 0, 0, 0 }
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};
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static ngx_int_t
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ngx_http_spdy_add_variables(ngx_conf_t *cf)
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{
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ngx_http_variable_t *var, *v;
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for (v = ngx_http_spdy_vars; v->name.len; v++) {
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var = ngx_http_add_variable(cf, &v->name, v->flags);
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if (var == NULL) {
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return NGX_ERROR;
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}
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var->get_handler = v->get_handler;
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var->data = v->data;
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}
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return NGX_OK;
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}
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static ngx_int_t
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ngx_http_spdy_variable(ngx_http_request_t *r,
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ngx_http_variable_value_t *v, uintptr_t data)
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{
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if (r->spdy_stream) {
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v->len = sizeof("3.1") - 1;
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v->valid = 1;
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v->no_cacheable = 0;
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v->not_found = 0;
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v->data = (u_char *) "3.1";
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return NGX_OK;
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}
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*v = ngx_http_variable_null_value;
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return NGX_OK;
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}
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static ngx_int_t
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ngx_http_spdy_request_priority_variable(ngx_http_request_t *r,
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ngx_http_variable_value_t *v, uintptr_t data)
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{
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if (r->spdy_stream) {
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v->len = 1;
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v->valid = 1;
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v->no_cacheable = 0;
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v->not_found = 0;
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v->data = ngx_pnalloc(r->pool, 1);
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if (v->data == NULL) {
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return NGX_ERROR;
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}
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v->data[0] = '0' + (u_char) r->spdy_stream->priority;
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return NGX_OK;
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}
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*v = ngx_http_variable_null_value;
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return NGX_OK;
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}
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static ngx_int_t
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ngx_http_spdy_module_init(ngx_cycle_t *cycle)
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{
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ngx_http_spdy_request_headers_init();
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return NGX_OK;
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}
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static void *
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ngx_http_spdy_create_main_conf(ngx_conf_t *cf)
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{
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ngx_http_spdy_main_conf_t *smcf;
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smcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_spdy_main_conf_t));
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if (smcf == NULL) {
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return NULL;
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}
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smcf->recv_buffer_size = NGX_CONF_UNSET_SIZE;
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return smcf;
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}
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static char *
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ngx_http_spdy_init_main_conf(ngx_conf_t *cf, void *conf)
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{
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ngx_http_spdy_main_conf_t *smcf = conf;
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ngx_conf_init_size_value(smcf->recv_buffer_size, 256 * 1024);
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return NGX_CONF_OK;
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}
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static void *
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ngx_http_spdy_create_srv_conf(ngx_conf_t *cf)
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{
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ngx_http_spdy_srv_conf_t *sscf;
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sscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_spdy_srv_conf_t));
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if (sscf == NULL) {
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return NULL;
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}
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sscf->pool_size = NGX_CONF_UNSET_SIZE;
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sscf->concurrent_streams = NGX_CONF_UNSET_UINT;
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sscf->streams_index_mask = NGX_CONF_UNSET_UINT;
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sscf->recv_timeout = NGX_CONF_UNSET_MSEC;
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sscf->keepalive_timeout = NGX_CONF_UNSET_MSEC;
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sscf->headers_comp = NGX_CONF_UNSET;
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return sscf;
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}
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static char *
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ngx_http_spdy_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
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{
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ngx_http_spdy_srv_conf_t *prev = parent;
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ngx_http_spdy_srv_conf_t *conf = child;
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ngx_conf_merge_size_value(conf->pool_size, prev->pool_size, 4096);
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ngx_conf_merge_uint_value(conf->concurrent_streams,
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prev->concurrent_streams, 100);
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ngx_conf_merge_uint_value(conf->streams_index_mask,
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prev->streams_index_mask, 32 - 1);
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ngx_conf_merge_msec_value(conf->recv_timeout,
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prev->recv_timeout, 30000);
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ngx_conf_merge_msec_value(conf->keepalive_timeout,
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prev->keepalive_timeout, 180000);
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ngx_conf_merge_value(conf->headers_comp, prev->headers_comp, 0);
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return NGX_CONF_OK;
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}
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static void *
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ngx_http_spdy_create_loc_conf(ngx_conf_t *cf)
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{
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ngx_http_spdy_loc_conf_t *slcf;
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slcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_spdy_loc_conf_t));
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if (slcf == NULL) {
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return NULL;
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}
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slcf->chunk_size = NGX_CONF_UNSET_SIZE;
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return slcf;
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}
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static char *
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ngx_http_spdy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
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{
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ngx_http_spdy_loc_conf_t *prev = parent;
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ngx_http_spdy_loc_conf_t *conf = child;
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ngx_conf_merge_size_value(conf->chunk_size, prev->chunk_size, 8 * 1024);
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return NGX_CONF_OK;
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}
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static char *
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ngx_http_spdy_recv_buffer_size(ngx_conf_t *cf, void *post, void *data)
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{
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size_t *sp = data;
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if (*sp <= 2 * NGX_SPDY_STATE_BUFFER_SIZE) {
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return "value is too small";
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}
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return NGX_CONF_OK;
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}
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static char *
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ngx_http_spdy_pool_size(ngx_conf_t *cf, void *post, void *data)
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{
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size_t *sp = data;
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if (*sp < NGX_MIN_POOL_SIZE) {
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ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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"the pool size must be no less than %uz",
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NGX_MIN_POOL_SIZE);
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return NGX_CONF_ERROR;
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}
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if (*sp % NGX_POOL_ALIGNMENT) {
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ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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"the pool size must be a multiple of %uz",
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NGX_POOL_ALIGNMENT);
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return NGX_CONF_ERROR;
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}
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return NGX_CONF_OK;
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}
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static char *
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ngx_http_spdy_streams_index_mask(ngx_conf_t *cf, void *post, void *data)
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{
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ngx_uint_t *np = data;
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ngx_uint_t mask;
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mask = *np - 1;
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if (*np == 0 || (*np & mask)) {
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return "must be a power of two";
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}
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*np = mask;
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return NGX_CONF_OK;
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}
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static char *
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ngx_http_spdy_chunk_size(ngx_conf_t *cf, void *post, void *data)
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{
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size_t *sp = data;
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if (*sp == 0) {
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ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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"the spdy chunk size cannot be zero");
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return NGX_CONF_ERROR;
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}
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if (*sp > NGX_SPDY_MAX_FRAME_SIZE) {
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*sp = NGX_SPDY_MAX_FRAME_SIZE;
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}
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return NGX_CONF_OK;
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}
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