555 lines
15 KiB
C
555 lines
15 KiB
C
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/*
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* Copyright (C) Nginx, Inc.
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* Copyright (C) Roman Arutyunyan
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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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static ngx_int_t ngx_http_v3_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_v3_add_variables(ngx_conf_t *cf);
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static void *ngx_http_v3_create_srv_conf(ngx_conf_t *cf);
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static char *ngx_http_v3_merge_srv_conf(ngx_conf_t *cf, void *parent,
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void *child);
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static char *ngx_http_quic_mtu(ngx_conf_t *cf, void *post,
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void *data);
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static char *ngx_http_quic_host_key(ngx_conf_t *cf, ngx_command_t *cmd,
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void *conf);
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static void *ngx_http_v3_create_loc_conf(ngx_conf_t *cf);
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static char *ngx_http_v3_merge_loc_conf(ngx_conf_t *cf, void *parent,
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void *child);
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static char *ngx_http_v3_push(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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static ngx_conf_post_t ngx_http_quic_mtu_post =
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{ ngx_http_quic_mtu };
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static ngx_command_t ngx_http_v3_commands[] = {
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{ ngx_string("http3"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
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ngx_conf_set_flag_slot,
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NGX_HTTP_SRV_CONF_OFFSET,
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offsetof(ngx_http_v3_srv_conf_t, enable),
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NULL },
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{ ngx_string("http3_hq"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
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ngx_conf_set_flag_slot,
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NGX_HTTP_SRV_CONF_OFFSET,
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offsetof(ngx_http_v3_srv_conf_t, enable_hq),
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NULL },
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{ ngx_string("http3_max_concurrent_pushes"),
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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_v3_srv_conf_t, max_concurrent_pushes),
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NULL },
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{ ngx_string("http3_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_v3_srv_conf_t, max_concurrent_streams),
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NULL },
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{ ngx_string("http3_push"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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ngx_http_v3_push,
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NGX_HTTP_LOC_CONF_OFFSET,
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0,
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NULL },
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{ ngx_string("http3_push_preload"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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ngx_conf_set_flag_slot,
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NGX_HTTP_LOC_CONF_OFFSET,
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offsetof(ngx_http_v3_loc_conf_t, push_preload),
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NULL },
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{ ngx_string("http3_stream_buffer_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_v3_srv_conf_t, quic.stream_buffer_size),
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NULL },
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{ ngx_string("quic_retry"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
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ngx_conf_set_flag_slot,
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NGX_HTTP_SRV_CONF_OFFSET,
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offsetof(ngx_http_v3_srv_conf_t, quic.retry),
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NULL },
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{ ngx_string("quic_gso"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
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ngx_conf_set_flag_slot,
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NGX_HTTP_SRV_CONF_OFFSET,
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offsetof(ngx_http_v3_srv_conf_t, quic.gso_enabled),
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NULL },
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{ ngx_string("quic_mtu"),
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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_v3_srv_conf_t, quic.mtu),
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&ngx_http_quic_mtu_post },
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{ ngx_string("quic_host_key"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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ngx_http_quic_host_key,
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NGX_HTTP_SRV_CONF_OFFSET,
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0,
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NULL },
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{ ngx_string("quic_active_connection_id_limit"),
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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_v3_srv_conf_t, quic.active_connection_id_limit),
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NULL },
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ngx_null_command
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};
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static ngx_http_module_t ngx_http_v3_module_ctx = {
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ngx_http_v3_add_variables, /* preconfiguration */
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NULL, /* postconfiguration */
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NULL, /* create main configuration */
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NULL, /* init main configuration */
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ngx_http_v3_create_srv_conf, /* create server configuration */
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ngx_http_v3_merge_srv_conf, /* merge server configuration */
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ngx_http_v3_create_loc_conf, /* create location configuration */
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ngx_http_v3_merge_loc_conf /* merge location configuration */
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};
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ngx_module_t ngx_http_v3_module = {
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NGX_MODULE_V1,
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&ngx_http_v3_module_ctx, /* module context */
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ngx_http_v3_commands, /* module directives */
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NGX_HTTP_MODULE, /* module type */
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NULL, /* init master */
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NULL, /* 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_v3_vars[] = {
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{ ngx_string("http3"), NULL, ngx_http_v3_variable, 0, 0, 0 },
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ngx_http_null_variable
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};
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static ngx_str_t ngx_http_quic_salt = ngx_string("ngx_quic");
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static ngx_int_t
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ngx_http_v3_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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ngx_http_v3_session_t *h3c;
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if (r->connection->quic) {
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h3c = ngx_http_v3_get_session(r->connection);
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if (h3c->hq) {
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v->len = sizeof("hq") - 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 *) "hq";
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return NGX_OK;
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}
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v->len = sizeof("h3") - 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 *) "h3";
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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_v3_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_v3_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 void *
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ngx_http_v3_create_srv_conf(ngx_conf_t *cf)
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{
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ngx_http_v3_srv_conf_t *h3scf;
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h3scf = ngx_pcalloc(cf->pool, sizeof(ngx_http_v3_srv_conf_t));
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if (h3scf == NULL) {
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return NULL;
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}
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/*
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* set by ngx_pcalloc():
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*
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* h3scf->quic.host_key = { 0, NULL }
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* h3scf->quic.stream_reject_code_uni = 0;
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* h3scf->quic.disable_active_migration = 0;
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* h3scf->quic.timeout = 0;
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* h3scf->max_blocked_streams = 0;
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*/
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h3scf->enable = NGX_CONF_UNSET;
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h3scf->enable_hq = NGX_CONF_UNSET;
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h3scf->max_table_capacity = NGX_HTTP_V3_MAX_TABLE_CAPACITY;
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h3scf->max_concurrent_pushes = NGX_CONF_UNSET_UINT;
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h3scf->max_concurrent_streams = NGX_CONF_UNSET_UINT;
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h3scf->quic.mtu = NGX_CONF_UNSET_SIZE;
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h3scf->quic.stream_buffer_size = NGX_CONF_UNSET_SIZE;
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h3scf->quic.max_concurrent_streams_bidi = NGX_CONF_UNSET_UINT;
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h3scf->quic.max_concurrent_streams_uni = NGX_HTTP_V3_MAX_UNI_STREAMS;
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h3scf->quic.retry = NGX_CONF_UNSET;
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h3scf->quic.gso_enabled = NGX_CONF_UNSET;
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h3scf->quic.stream_close_code = NGX_HTTP_V3_ERR_NO_ERROR;
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h3scf->quic.stream_reject_code_bidi = NGX_HTTP_V3_ERR_REQUEST_REJECTED;
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h3scf->quic.active_connection_id_limit = NGX_CONF_UNSET_UINT;
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h3scf->quic.init = ngx_http_v3_init;
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h3scf->quic.shutdown = ngx_http_v3_shutdown;
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return h3scf;
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}
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static char *
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ngx_http_v3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child)
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{
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ngx_http_v3_srv_conf_t *prev = parent;
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ngx_http_v3_srv_conf_t *conf = child;
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ngx_http_ssl_srv_conf_t *sscf;
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ngx_conf_merge_value(conf->enable, prev->enable, 1);
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ngx_conf_merge_value(conf->enable_hq, prev->enable_hq, 0);
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ngx_conf_merge_uint_value(conf->max_concurrent_pushes,
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prev->max_concurrent_pushes, 10);
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ngx_conf_merge_uint_value(conf->max_concurrent_streams,
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prev->max_concurrent_streams, 128);
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conf->max_blocked_streams = conf->max_concurrent_streams;
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ngx_conf_merge_size_value(conf->quic.mtu, prev->quic.mtu,
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NGX_QUIC_MAX_UDP_PAYLOAD_SIZE);
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ngx_conf_merge_size_value(conf->quic.stream_buffer_size,
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prev->quic.stream_buffer_size,
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65536);
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conf->quic.max_concurrent_streams_bidi = conf->max_concurrent_streams;
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ngx_conf_merge_value(conf->quic.retry, prev->quic.retry, 0);
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ngx_conf_merge_value(conf->quic.gso_enabled, prev->quic.gso_enabled, 0);
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ngx_conf_merge_str_value(conf->quic.host_key, prev->quic.host_key, "");
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ngx_conf_merge_uint_value(conf->quic.active_connection_id_limit,
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prev->quic.active_connection_id_limit,
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2);
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if (conf->quic.host_key.len == 0) {
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conf->quic.host_key.len = NGX_QUIC_DEFAULT_HOST_KEY_LEN;
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conf->quic.host_key.data = ngx_palloc(cf->pool,
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conf->quic.host_key.len);
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if (conf->quic.host_key.data == NULL) {
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return NGX_CONF_ERROR;
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}
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if (RAND_bytes(conf->quic.host_key.data, NGX_QUIC_DEFAULT_HOST_KEY_LEN)
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<= 0)
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{
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return NGX_CONF_ERROR;
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}
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}
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if (ngx_quic_derive_key(cf->log, "av_token_key",
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&conf->quic.host_key, &ngx_http_quic_salt,
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conf->quic.av_token_key, NGX_QUIC_AV_KEY_LEN)
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!= NGX_OK)
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{
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return NGX_CONF_ERROR;
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}
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if (ngx_quic_derive_key(cf->log, "sr_token_key",
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&conf->quic.host_key, &ngx_http_quic_salt,
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conf->quic.sr_token_key, NGX_QUIC_SR_KEY_LEN)
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!= NGX_OK)
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{
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return NGX_CONF_ERROR;
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}
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sscf = ngx_http_conf_get_module_srv_conf(cf, ngx_http_ssl_module);
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conf->quic.ssl = &sscf->ssl;
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return NGX_CONF_OK;
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}
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static char *
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ngx_http_quic_mtu(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_QUIC_MIN_INITIAL_SIZE
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|| *sp > NGX_QUIC_MAX_UDP_PAYLOAD_SIZE)
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{
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ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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"\"quic_mtu\" must be between %d and %d",
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NGX_QUIC_MIN_INITIAL_SIZE,
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NGX_QUIC_MAX_UDP_PAYLOAD_SIZE);
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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_quic_host_key(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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{
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ngx_http_v3_srv_conf_t *h3scf = conf;
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u_char *buf;
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size_t size;
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ssize_t n;
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ngx_str_t *value;
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ngx_file_t file;
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ngx_file_info_t fi;
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ngx_quic_conf_t *qcf;
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qcf = &h3scf->quic;
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if (qcf->host_key.len) {
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return "is duplicate";
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}
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buf = NULL;
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#if (NGX_SUPPRESS_WARN)
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size = 0;
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#endif
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value = cf->args->elts;
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if (ngx_conf_full_name(cf->cycle, &value[1], 1) != NGX_OK) {
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return NGX_CONF_ERROR;
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}
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ngx_memzero(&file, sizeof(ngx_file_t));
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file.name = value[1];
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file.log = cf->log;
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file.fd = ngx_open_file(file.name.data, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0);
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if (file.fd == NGX_INVALID_FILE) {
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ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
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ngx_open_file_n " \"%V\" failed", &file.name);
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return NGX_CONF_ERROR;
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}
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if (ngx_fd_info(file.fd, &fi) == NGX_FILE_ERROR) {
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ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno,
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ngx_fd_info_n " \"%V\" failed", &file.name);
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goto failed;
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}
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size = ngx_file_size(&fi);
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if (size == 0) {
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ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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"\"%V\" zero key size", &file.name);
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goto failed;
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}
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buf = ngx_pnalloc(cf->pool, size);
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if (buf == NULL) {
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goto failed;
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}
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n = ngx_read_file(&file, buf, size, 0);
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if (n == NGX_ERROR) {
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ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno,
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ngx_read_file_n " \"%V\" failed", &file.name);
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goto failed;
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}
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if ((size_t) n != size) {
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ngx_conf_log_error(NGX_LOG_CRIT, cf, 0,
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ngx_read_file_n " \"%V\" returned only "
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"%z bytes instead of %uz", &file.name, n, size);
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goto failed;
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}
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qcf->host_key.data = buf;
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qcf->host_key.len = n;
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if (ngx_close_file(file.fd) == NGX_FILE_ERROR) {
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ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno,
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ngx_close_file_n " \"%V\" failed", &file.name);
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}
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return NGX_CONF_OK;
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failed:
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if (ngx_close_file(file.fd) == NGX_FILE_ERROR) {
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ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno,
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ngx_close_file_n " \"%V\" failed", &file.name);
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}
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if (buf) {
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ngx_explicit_memzero(buf, size);
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}
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return NGX_CONF_ERROR;
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}
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static void *
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ngx_http_v3_create_loc_conf(ngx_conf_t *cf)
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{
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ngx_http_v3_loc_conf_t *h3lcf;
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h3lcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_v3_loc_conf_t));
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if (h3lcf == NULL) {
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return NULL;
|
|
}
|
|
|
|
/*
|
|
* set by ngx_pcalloc():
|
|
*
|
|
* h3lcf->pushes = NULL;
|
|
*/
|
|
|
|
h3lcf->push_preload = NGX_CONF_UNSET;
|
|
h3lcf->push = NGX_CONF_UNSET;
|
|
|
|
return h3lcf;
|
|
}
|
|
|
|
|
|
static char *
|
|
ngx_http_v3_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
{
|
|
ngx_http_v3_loc_conf_t *prev = parent;
|
|
ngx_http_v3_loc_conf_t *conf = child;
|
|
|
|
ngx_conf_merge_value(conf->push, prev->push, 1);
|
|
|
|
if (conf->push && conf->pushes == NULL) {
|
|
conf->pushes = prev->pushes;
|
|
}
|
|
|
|
ngx_conf_merge_value(conf->push_preload, prev->push_preload, 0);
|
|
|
|
return NGX_CONF_OK;
|
|
}
|
|
|
|
|
|
static char *
|
|
ngx_http_v3_push(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
{
|
|
ngx_http_v3_loc_conf_t *h3lcf = conf;
|
|
|
|
ngx_str_t *value;
|
|
ngx_http_complex_value_t *cv;
|
|
ngx_http_compile_complex_value_t ccv;
|
|
|
|
value = cf->args->elts;
|
|
|
|
if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
|
|
if (h3lcf->pushes) {
|
|
return "\"off\" parameter cannot be used with URI";
|
|
}
|
|
|
|
if (h3lcf->push == 0) {
|
|
return "is duplicate";
|
|
}
|
|
|
|
h3lcf->push = 0;
|
|
return NGX_CONF_OK;
|
|
}
|
|
|
|
if (h3lcf->push == 0) {
|
|
return "URI cannot be used with \"off\" parameter";
|
|
}
|
|
|
|
h3lcf->push = 1;
|
|
|
|
if (h3lcf->pushes == NULL) {
|
|
h3lcf->pushes = ngx_array_create(cf->pool, 1,
|
|
sizeof(ngx_http_complex_value_t));
|
|
if (h3lcf->pushes == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
}
|
|
|
|
cv = ngx_array_push(h3lcf->pushes);
|
|
if (cv == NULL) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
|
|
|
|
ccv.cf = cf;
|
|
ccv.value = &value[1];
|
|
ccv.complex_value = cv;
|
|
|
|
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
return NGX_CONF_OK;
|
|
}
|