| /* | |
| * Copyright (C) Igor Sysoev | |
| * Copyright (C) Nginx, Inc. | |
| */ | |
| #include <ngx_config.h> | |
| #include <ngx_core.h> | |
| #include <ngx_stream.h> | |
| #define NGX_DEFAULT_CIPHERS "HIGH:!aNULL:!MD5" | |
| #define NGX_DEFAULT_ECDH_CURVE "prime256v1" | |
| static void *ngx_stream_ssl_create_conf(ngx_conf_t *cf); | |
| static char *ngx_stream_ssl_merge_conf(ngx_conf_t *cf, void *parent, | |
| void *child); | |
| static char *ngx_stream_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, | |
| void *conf); | |
| static char *ngx_stream_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, | |
| void *conf); | |
| static ngx_conf_bitmask_t ngx_stream_ssl_protocols[] = { | |
| { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
| { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
| { ngx_null_string, 0 } | |
| }; | |
| static ngx_command_t ngx_stream_ssl_commands[] = { | |
| { ngx_string("ssl_handshake_timeout"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| ngx_conf_set_msec_slot, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| offsetof(ngx_stream_ssl_conf_t, handshake_timeout), | |
| NULL }, | |
| { ngx_string("ssl_certificate"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| ngx_conf_set_str_slot, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| offsetof(ngx_stream_ssl_conf_t, certificate), | |
| NULL }, | |
| { ngx_string("ssl_certificate_key"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| ngx_conf_set_str_slot, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| offsetof(ngx_stream_ssl_conf_t, certificate_key), | |
| NULL }, | |
| { ngx_string("ssl_password_file"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| ngx_stream_ssl_password_file, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| 0, | |
| NULL }, | |
| { ngx_string("ssl_dhparam"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| ngx_conf_set_str_slot, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| offsetof(ngx_stream_ssl_conf_t, dhparam), | |
| NULL }, | |
| { ngx_string("ssl_ecdh_curve"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| ngx_conf_set_str_slot, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| offsetof(ngx_stream_ssl_conf_t, ecdh_curve), | |
| NULL }, | |
| { ngx_string("ssl_protocols"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, | |
| ngx_conf_set_bitmask_slot, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| offsetof(ngx_stream_ssl_conf_t, protocols), | |
| &ngx_stream_ssl_protocols }, | |
| { ngx_string("ssl_ciphers"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| ngx_conf_set_str_slot, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| offsetof(ngx_stream_ssl_conf_t, ciphers), | |
| NULL }, | |
| { ngx_string("ssl_prefer_server_ciphers"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
| ngx_conf_set_flag_slot, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| offsetof(ngx_stream_ssl_conf_t, prefer_server_ciphers), | |
| NULL }, | |
| { ngx_string("ssl_session_cache"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE12, | |
| ngx_stream_ssl_session_cache, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| 0, | |
| NULL }, | |
| { ngx_string("ssl_session_tickets"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, | |
| ngx_conf_set_flag_slot, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| offsetof(ngx_stream_ssl_conf_t, session_tickets), | |
| NULL }, | |
| { ngx_string("ssl_session_ticket_key"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| ngx_conf_set_str_array_slot, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| offsetof(ngx_stream_ssl_conf_t, session_ticket_keys), | |
| NULL }, | |
| { ngx_string("ssl_session_timeout"), | |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, | |
| ngx_conf_set_sec_slot, | |
| NGX_STREAM_SRV_CONF_OFFSET, | |
| offsetof(ngx_stream_ssl_conf_t, session_timeout), | |
| NULL }, | |
| ngx_null_command | |
| }; | |
| static ngx_stream_module_t ngx_stream_ssl_module_ctx = { | |
| NULL, /* postconfiguration */ | |
| NULL, /* create main configuration */ | |
| NULL, /* init main configuration */ | |
| ngx_stream_ssl_create_conf, /* create server configuration */ | |
| ngx_stream_ssl_merge_conf /* merge server configuration */ | |
| }; | |
| ngx_module_t ngx_stream_ssl_module = { | |
| NGX_MODULE_V1, | |
| &ngx_stream_ssl_module_ctx, /* module context */ | |
| ngx_stream_ssl_commands, /* module directives */ | |
| NGX_STREAM_MODULE, /* module type */ | |
| NULL, /* init master */ | |
| NULL, /* init module */ | |
| NULL, /* init process */ | |
| NULL, /* init thread */ | |
| NULL, /* exit thread */ | |
| NULL, /* exit process */ | |
| NULL, /* exit master */ | |
| NGX_MODULE_V1_PADDING | |
| }; | |
| static ngx_str_t ngx_stream_ssl_sess_id_ctx = ngx_string("STREAM"); | |
| static void * | |
| ngx_stream_ssl_create_conf(ngx_conf_t *cf) | |
| { | |
| ngx_stream_ssl_conf_t *scf; | |
| scf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_ssl_conf_t)); | |
| if (scf == NULL) { | |
| return NULL; | |
| } | |
| /* | |
| * set by ngx_pcalloc(): | |
| * | |
| * scf->protocols = 0; | |
| * scf->certificate = { 0, NULL }; | |
| * scf->certificate_key = { 0, NULL }; | |
| * scf->dhparam = { 0, NULL }; | |
| * scf->ecdh_curve = { 0, NULL }; | |
| * scf->ciphers = { 0, NULL }; | |
| * scf->shm_zone = NULL; | |
| */ | |
| scf->handshake_timeout = NGX_CONF_UNSET_MSEC; | |
| scf->passwords = NGX_CONF_UNSET_PTR; | |
| scf->prefer_server_ciphers = NGX_CONF_UNSET; | |
| scf->builtin_session_cache = NGX_CONF_UNSET; | |
| scf->session_timeout = NGX_CONF_UNSET; | |
| scf->session_tickets = NGX_CONF_UNSET; | |
| scf->session_ticket_keys = NGX_CONF_UNSET_PTR; | |
| return scf; | |
| } | |
| static char * | |
| ngx_stream_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| { | |
| ngx_stream_ssl_conf_t *prev = parent; | |
| ngx_stream_ssl_conf_t *conf = child; | |
| ngx_pool_cleanup_t *cln; | |
| ngx_conf_merge_msec_value(conf->handshake_timeout, | |
| prev->handshake_timeout, 60000); | |
| ngx_conf_merge_value(conf->session_timeout, | |
| prev->session_timeout, 300); | |
| ngx_conf_merge_value(conf->prefer_server_ciphers, | |
| prev->prefer_server_ciphers, 0); | |
| ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols, | |
| (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 | |
| |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); | |
| ngx_conf_merge_str_value(conf->certificate, prev->certificate, ""); | |
| ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key, ""); | |
| ngx_conf_merge_ptr_value(conf->passwords, prev->passwords, NULL); | |
| ngx_conf_merge_str_value(conf->dhparam, prev->dhparam, ""); | |
| ngx_conf_merge_str_value(conf->ecdh_curve, prev->ecdh_curve, | |
| NGX_DEFAULT_ECDH_CURVE); | |
| ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFAULT_CIPHERS); | |
| conf->ssl.log = cf->log; | |
| if (conf->certificate.len == 0) { | |
| return NGX_CONF_OK; | |
| } | |
| if (conf->certificate_key.len == 0) { | |
| ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| "no \"ssl_certificate_key\" is defined " | |
| "for certificate \"%V\"", | |
| &conf->certificate); | |
| return NGX_CONF_ERROR; | |
| } | |
| if (ngx_ssl_create(&conf->ssl, conf->protocols, NULL) != NGX_OK) { | |
| return NGX_CONF_ERROR; | |
| } | |
| cln = ngx_pool_cleanup_add(cf->pool, 0); | |
| if (cln == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| cln->handler = ngx_ssl_cleanup_ctx; | |
| cln->data = &conf->ssl; | |
| if (ngx_ssl_certificate(cf, &conf->ssl, &conf->certificate, | |
| &conf->certificate_key, conf->passwords) | |
| != NGX_OK) | |
| { | |
| return NGX_CONF_ERROR; | |
| } | |
| if (SSL_CTX_set_cipher_list(conf->ssl.ctx, | |
| (const char *) conf->ciphers.data) | |
| == 0) | |
| { | |
| ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
| "SSL_CTX_set_cipher_list(\"%V\") failed", | |
| &conf->ciphers); | |
| return NGX_CONF_ERROR; | |
| } | |
| if (conf->prefer_server_ciphers) { | |
| SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_CIPHER_SERVER_PREFERENCE); | |
| } | |
| #if (OPENSSL_VERSION_NUMBER < 0x10100001L && !defined LIBRESSL_VERSION_NUMBER) | |
| SSL_CTX_set_tmp_rsa_callback(conf->ssl.ctx, ngx_ssl_rsa512_key_callback); | |
| #endif | |
| if (ngx_ssl_dhparam(cf, &conf->ssl, &conf->dhparam) != NGX_OK) { | |
| return NGX_CONF_ERROR; | |
| } | |
| if (ngx_ssl_ecdh_curve(cf, &conf->ssl, &conf->ecdh_curve) != NGX_OK) { | |
| return NGX_CONF_ERROR; | |
| } | |
| ngx_conf_merge_value(conf->builtin_session_cache, | |
| prev->builtin_session_cache, NGX_SSL_NONE_SCACHE); | |
| if (conf->shm_zone == NULL) { | |
| conf->shm_zone = prev->shm_zone; | |
| } | |
| if (ngx_ssl_session_cache(&conf->ssl, &ngx_stream_ssl_sess_id_ctx, | |
| conf->builtin_session_cache, | |
| conf->shm_zone, conf->session_timeout) | |
| != NGX_OK) | |
| { | |
| return NGX_CONF_ERROR; | |
| } | |
| ngx_conf_merge_value(conf->session_tickets, | |
| prev->session_tickets, 1); | |
| #ifdef SSL_OP_NO_TICKET | |
| if (!conf->session_tickets) { | |
| SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_NO_TICKET); | |
| } | |
| #endif | |
| ngx_conf_merge_ptr_value(conf->session_ticket_keys, | |
| prev->session_ticket_keys, NULL); | |
| if (ngx_ssl_session_ticket_keys(cf, &conf->ssl, conf->session_ticket_keys) | |
| != NGX_OK) | |
| { | |
| return NGX_CONF_ERROR; | |
| } | |
| return NGX_CONF_OK; | |
| } | |
| static char * | |
| ngx_stream_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| { | |
| ngx_stream_ssl_conf_t *scf = conf; | |
| ngx_str_t *value; | |
| if (scf->passwords != NGX_CONF_UNSET_PTR) { | |
| return "is duplicate"; | |
| } | |
| value = cf->args->elts; | |
| scf->passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
| if (scf->passwords == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| return NGX_CONF_OK; | |
| } | |
| static char * | |
| ngx_stream_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| { | |
| ngx_stream_ssl_conf_t *scf = conf; | |
| size_t len; | |
| ngx_str_t *value, name, size; | |
| ngx_int_t n; | |
| ngx_uint_t i, j; | |
| value = cf->args->elts; | |
| for (i = 1; i < cf->args->nelts; i++) { | |
| if (ngx_strcmp(value[i].data, "off") == 0) { | |
| scf->builtin_session_cache = NGX_SSL_NO_SCACHE; | |
| continue; | |
| } | |
| if (ngx_strcmp(value[i].data, "none") == 0) { | |
| scf->builtin_session_cache = NGX_SSL_NONE_SCACHE; | |
| continue; | |
| } | |
| if (ngx_strcmp(value[i].data, "builtin") == 0) { | |
| scf->builtin_session_cache = NGX_SSL_DFLT_BUILTIN_SCACHE; | |
| continue; | |
| } | |
| if (value[i].len > sizeof("builtin:") - 1 | |
| && ngx_strncmp(value[i].data, "builtin:", sizeof("builtin:") - 1) | |
| == 0) | |
| { | |
| n = ngx_atoi(value[i].data + sizeof("builtin:") - 1, | |
| value[i].len - (sizeof("builtin:") - 1)); | |
| if (n == NGX_ERROR) { | |
| goto invalid; | |
| } | |
| scf->builtin_session_cache = n; | |
| continue; | |
| } | |
| if (value[i].len > sizeof("shared:") - 1 | |
| && ngx_strncmp(value[i].data, "shared:", sizeof("shared:") - 1) | |
| == 0) | |
| { | |
| len = 0; | |
| for (j = sizeof("shared:") - 1; j < value[i].len; j++) { | |
| if (value[i].data[j] == ':') { | |
| break; | |
| } | |
| len++; | |
| } | |
| if (len == 0) { | |
| goto invalid; | |
| } | |
| name.len = len; | |
| name.data = value[i].data + sizeof("shared:") - 1; | |
| size.len = value[i].len - j - 1; | |
| size.data = name.data + len + 1; | |
| n = ngx_parse_size(&size); | |
| if (n == NGX_ERROR) { | |
| goto invalid; | |
| } | |
| if (n < (ngx_int_t) (8 * ngx_pagesize)) { | |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| "session cache \"%V\" is too small", | |
| &value[i]); | |
| return NGX_CONF_ERROR; | |
| } | |
| scf->shm_zone = ngx_shared_memory_add(cf, &name, n, | |
| &ngx_stream_ssl_module); | |
| if (scf->shm_zone == NULL) { | |
| return NGX_CONF_ERROR; | |
| } | |
| scf->shm_zone->init = ngx_ssl_session_cache_init; | |
| continue; | |
| } | |
| goto invalid; | |
| } | |
| if (scf->shm_zone && scf->builtin_session_cache == NGX_CONF_UNSET) { | |
| scf->builtin_session_cache = NGX_SSL_NO_BUILTIN_SCACHE; | |
| } | |
| return NGX_CONF_OK; | |
| invalid: | |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| "invalid session cache \"%V\"", &value[i]); | |
| return NGX_CONF_ERROR; | |
| } |