| |
| /* |
| * Copyright (C) Igor Sysoev |
| * Copyright (C) Nginx, Inc. |
| */ |
| |
| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <ngx_stream.h> |
| |
| |
| typedef ngx_int_t (*ngx_ssl_variable_handler_pt)(ngx_connection_t *c, |
| ngx_pool_t *pool, ngx_str_t *s); |
| |
| |
| #define NGX_DEFAULT_CIPHERS "HIGH:!aNULL:!MD5" |
| #define NGX_DEFAULT_ECDH_CURVE "auto" |
| |
| |
| static ngx_int_t ngx_stream_ssl_handler(ngx_stream_session_t *s); |
| static ngx_int_t ngx_stream_ssl_init_connection(ngx_ssl_t *ssl, |
| ngx_connection_t *c); |
| static void ngx_stream_ssl_handshake_handler(ngx_connection_t *c); |
| #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
| static int ngx_stream_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, |
| void *arg); |
| #endif |
| #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| static int ngx_stream_ssl_alpn_select(ngx_ssl_conn_t *ssl_conn, |
| const unsigned char **out, unsigned char *outlen, |
| const unsigned char *in, unsigned int inlen, void *arg); |
| #endif |
| #ifdef SSL_R_CERT_CB_ERROR |
| static int ngx_stream_ssl_certificate(ngx_ssl_conn_t *ssl_conn, void *arg); |
| #endif |
| static ngx_int_t ngx_stream_ssl_static_variable(ngx_stream_session_t *s, |
| ngx_stream_variable_value_t *v, uintptr_t data); |
| static ngx_int_t ngx_stream_ssl_variable(ngx_stream_session_t *s, |
| ngx_stream_variable_value_t *v, uintptr_t data); |
| |
| static ngx_int_t ngx_stream_ssl_add_variables(ngx_conf_t *cf); |
| 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 ngx_int_t ngx_stream_ssl_compile_certificates(ngx_conf_t *cf, |
| ngx_stream_ssl_conf_t *conf); |
| |
| 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 char *ngx_stream_ssl_alpn(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| |
| static char *ngx_stream_ssl_conf_command_check(ngx_conf_t *cf, void *post, |
| void *data); |
| |
| static ngx_int_t ngx_stream_ssl_init(ngx_conf_t *cf); |
| |
| |
| 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_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, |
| { ngx_null_string, 0 } |
| }; |
| |
| |
| static ngx_conf_enum_t ngx_stream_ssl_verify[] = { |
| { ngx_string("off"), 0 }, |
| { ngx_string("on"), 1 }, |
| { ngx_string("optional"), 2 }, |
| { ngx_string("optional_no_ca"), 3 }, |
| { ngx_null_string, 0 } |
| }; |
| |
| |
| static ngx_conf_post_t ngx_stream_ssl_conf_command_post = |
| { ngx_stream_ssl_conf_command_check }; |
| |
| |
| 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_array_slot, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| offsetof(ngx_stream_ssl_conf_t, certificates), |
| NULL }, |
| |
| { ngx_string("ssl_certificate_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, certificate_keys), |
| 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_verify_client"), |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_enum_slot, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| offsetof(ngx_stream_ssl_conf_t, verify), |
| &ngx_stream_ssl_verify }, |
| |
| { ngx_string("ssl_verify_depth"), |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_num_slot, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| offsetof(ngx_stream_ssl_conf_t, verify_depth), |
| NULL }, |
| |
| { ngx_string("ssl_client_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, client_certificate), |
| NULL }, |
| |
| { ngx_string("ssl_trusted_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, trusted_certificate), |
| 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_string("ssl_crl"), |
| 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, crl), |
| NULL }, |
| |
| { ngx_string("ssl_conf_command"), |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE2, |
| ngx_conf_set_keyval_slot, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| offsetof(ngx_stream_ssl_conf_t, conf_commands), |
| &ngx_stream_ssl_conf_command_post }, |
| |
| { ngx_string("ssl_alpn"), |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, |
| ngx_stream_ssl_alpn, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| ngx_null_command |
| }; |
| |
| |
| static ngx_stream_module_t ngx_stream_ssl_module_ctx = { |
| ngx_stream_ssl_add_variables, /* preconfiguration */ |
| ngx_stream_ssl_init, /* 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_stream_variable_t ngx_stream_ssl_vars[] = { |
| |
| { ngx_string("ssl_protocol"), NULL, ngx_stream_ssl_static_variable, |
| (uintptr_t) ngx_ssl_get_protocol, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_cipher"), NULL, ngx_stream_ssl_static_variable, |
| (uintptr_t) ngx_ssl_get_cipher_name, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_ciphers"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_ciphers, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_curves"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_curves, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_session_id"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_session_id, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_session_reused"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_session_reused, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_server_name"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_server_name, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_alpn_protocol"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_alpn_protocol, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_client_cert"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_certificate, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_client_raw_cert"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_raw_certificate, |
| NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_client_escaped_cert"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_escaped_certificate, |
| NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_client_s_dn"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_subject_dn, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_client_i_dn"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_issuer_dn, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_client_serial"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_serial_number, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_client_fingerprint"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_fingerprint, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_client_verify"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_client_verify, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_client_v_start"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_client_v_start, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_client_v_end"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_client_v_end, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| { ngx_string("ssl_client_v_remain"), NULL, ngx_stream_ssl_variable, |
| (uintptr_t) ngx_ssl_get_client_v_remain, NGX_STREAM_VAR_CHANGEABLE, 0 }, |
| |
| ngx_stream_null_variable |
| }; |
| |
| |
| static ngx_str_t ngx_stream_ssl_sess_id_ctx = ngx_string("STREAM"); |
| |
| |
| static ngx_int_t |
| ngx_stream_ssl_handler(ngx_stream_session_t *s) |
| { |
| long rc; |
| X509 *cert; |
| ngx_int_t rv; |
| ngx_connection_t *c; |
| ngx_stream_ssl_conf_t *sslcf; |
| |
| if (!s->ssl) { |
| return NGX_OK; |
| } |
| |
| c = s->connection; |
| |
| sslcf = ngx_stream_get_module_srv_conf(s, ngx_stream_ssl_module); |
| |
| if (c->ssl == NULL) { |
| c->log->action = "SSL handshaking"; |
| |
| rv = ngx_stream_ssl_init_connection(&sslcf->ssl, c); |
| |
| if (rv != NGX_OK) { |
| return rv; |
| } |
| } |
| |
| if (sslcf->verify) { |
| rc = SSL_get_verify_result(c->ssl->connection); |
| |
| if (rc != X509_V_OK |
| && (sslcf->verify != 3 || !ngx_ssl_verify_error_optional(rc))) |
| { |
| ngx_log_error(NGX_LOG_INFO, c->log, 0, |
| "client SSL certificate verify error: (%l:%s)", |
| rc, X509_verify_cert_error_string(rc)); |
| |
| ngx_ssl_remove_cached_session(c->ssl->session_ctx, |
| (SSL_get0_session(c->ssl->connection))); |
| return NGX_ERROR; |
| } |
| |
| if (sslcf->verify == 1) { |
| cert = SSL_get_peer_certificate(c->ssl->connection); |
| |
| if (cert == NULL) { |
| ngx_log_error(NGX_LOG_INFO, c->log, 0, |
| "client sent no required SSL certificate"); |
| |
| ngx_ssl_remove_cached_session(c->ssl->session_ctx, |
| (SSL_get0_session(c->ssl->connection))); |
| return NGX_ERROR; |
| } |
| |
| X509_free(cert); |
| } |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_stream_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c) |
| { |
| ngx_int_t rc; |
| ngx_stream_session_t *s; |
| ngx_stream_ssl_conf_t *sslcf; |
| ngx_stream_core_srv_conf_t *cscf; |
| |
| s = c->data; |
| |
| cscf = ngx_stream_get_module_srv_conf(s, ngx_stream_core_module); |
| |
| if (cscf->tcp_nodelay && ngx_tcp_nodelay(c) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| if (ngx_ssl_create_connection(ssl, c, 0) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| rc = ngx_ssl_handshake(c); |
| |
| if (rc == NGX_ERROR) { |
| return NGX_ERROR; |
| } |
| |
| if (rc == NGX_AGAIN) { |
| sslcf = ngx_stream_get_module_srv_conf(s, ngx_stream_ssl_module); |
| |
| ngx_add_timer(c->read, sslcf->handshake_timeout); |
| |
| c->ssl->handler = ngx_stream_ssl_handshake_handler; |
| |
| return NGX_AGAIN; |
| } |
| |
| /* rc == NGX_OK */ |
| |
| return NGX_OK; |
| } |
| |
| |
| static void |
| ngx_stream_ssl_handshake_handler(ngx_connection_t *c) |
| { |
| ngx_stream_session_t *s; |
| |
| s = c->data; |
| |
| if (!c->ssl->handshaked) { |
| ngx_stream_finalize_session(s, NGX_STREAM_INTERNAL_SERVER_ERROR); |
| return; |
| } |
| |
| if (c->read->timer_set) { |
| ngx_del_timer(c->read); |
| } |
| |
| ngx_stream_core_run_phases(s); |
| } |
| |
| |
| #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
| |
| static int |
| ngx_stream_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, void *arg) |
| { |
| return SSL_TLSEXT_ERR_OK; |
| } |
| |
| #endif |
| |
| |
| #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| |
| static int |
| ngx_stream_ssl_alpn_select(ngx_ssl_conn_t *ssl_conn, const unsigned char **out, |
| unsigned char *outlen, const unsigned char *in, unsigned int inlen, |
| void *arg) |
| { |
| ngx_str_t *alpn; |
| #if (NGX_DEBUG) |
| unsigned int i; |
| ngx_connection_t *c; |
| |
| c = ngx_ssl_get_connection(ssl_conn); |
| |
| for (i = 0; i < inlen; i += in[i] + 1) { |
| ngx_log_debug2(NGX_LOG_DEBUG_STREAM, c->log, 0, |
| "SSL ALPN supported by client: %*s", |
| (size_t) in[i], &in[i + 1]); |
| } |
| |
| #endif |
| |
| alpn = arg; |
| |
| if (SSL_select_next_proto((unsigned char **) out, outlen, alpn->data, |
| alpn->len, in, inlen) |
| != OPENSSL_NPN_NEGOTIATED) |
| { |
| return SSL_TLSEXT_ERR_ALERT_FATAL; |
| } |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_STREAM, c->log, 0, |
| "SSL ALPN selected: %*s", (size_t) *outlen, *out); |
| |
| return SSL_TLSEXT_ERR_OK; |
| } |
| |
| #endif |
| |
| |
| #ifdef SSL_R_CERT_CB_ERROR |
| |
| static int |
| ngx_stream_ssl_certificate(ngx_ssl_conn_t *ssl_conn, void *arg) |
| { |
| ngx_str_t cert, key; |
| ngx_uint_t i, nelts; |
| ngx_connection_t *c; |
| ngx_stream_session_t *s; |
| ngx_stream_ssl_conf_t *sslcf; |
| ngx_stream_complex_value_t *certs, *keys; |
| |
| c = ngx_ssl_get_connection(ssl_conn); |
| |
| if (c->ssl->handshaked) { |
| return 0; |
| } |
| |
| s = c->data; |
| |
| sslcf = arg; |
| |
| nelts = sslcf->certificate_values->nelts; |
| certs = sslcf->certificate_values->elts; |
| keys = sslcf->certificate_key_values->elts; |
| |
| for (i = 0; i < nelts; i++) { |
| |
| if (ngx_stream_complex_value(s, &certs[i], &cert) != NGX_OK) { |
| return 0; |
| } |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_STREAM, c->log, 0, |
| "ssl cert: \"%s\"", cert.data); |
| |
| if (ngx_stream_complex_value(s, &keys[i], &key) != NGX_OK) { |
| return 0; |
| } |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_STREAM, c->log, 0, |
| "ssl key: \"%s\"", key.data); |
| |
| if (ngx_ssl_connection_certificate(c, c->pool, &cert, &key, |
| sslcf->passwords) |
| != NGX_OK) |
| { |
| return 0; |
| } |
| } |
| |
| return 1; |
| } |
| |
| #endif |
| |
| |
| static ngx_int_t |
| ngx_stream_ssl_static_variable(ngx_stream_session_t *s, |
| ngx_stream_variable_value_t *v, uintptr_t data) |
| { |
| ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data; |
| |
| size_t len; |
| ngx_str_t str; |
| |
| if (s->connection->ssl) { |
| |
| (void) handler(s->connection, NULL, &str); |
| |
| v->data = str.data; |
| |
| for (len = 0; v->data[len]; len++) { /* void */ } |
| |
| v->len = len; |
| v->valid = 1; |
| v->no_cacheable = 0; |
| v->not_found = 0; |
| |
| return NGX_OK; |
| } |
| |
| v->not_found = 1; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_stream_ssl_variable(ngx_stream_session_t *s, |
| ngx_stream_variable_value_t *v, uintptr_t data) |
| { |
| ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data; |
| |
| ngx_str_t str; |
| |
| if (s->connection->ssl) { |
| |
| if (handler(s->connection, s->connection->pool, &str) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| v->len = str.len; |
| v->data = str.data; |
| |
| if (v->len) { |
| v->valid = 1; |
| v->no_cacheable = 0; |
| v->not_found = 0; |
| |
| return NGX_OK; |
| } |
| } |
| |
| v->not_found = 1; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_stream_ssl_add_variables(ngx_conf_t *cf) |
| { |
| ngx_stream_variable_t *var, *v; |
| |
| for (v = ngx_stream_ssl_vars; v->name.len; v++) { |
| var = ngx_stream_add_variable(cf, &v->name, v->flags); |
| if (var == NULL) { |
| return NGX_ERROR; |
| } |
| |
| var->get_handler = v->get_handler; |
| var->data = v->data; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| 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->listen = 0; |
| * scf->protocols = 0; |
| * scf->certificate_values = NULL; |
| * scf->dhparam = { 0, NULL }; |
| * scf->ecdh_curve = { 0, NULL }; |
| * scf->client_certificate = { 0, NULL }; |
| * scf->trusted_certificate = { 0, NULL }; |
| * scf->crl = { 0, NULL }; |
| * scf->alpn = { 0, NULL }; |
| * scf->ciphers = { 0, NULL }; |
| * scf->shm_zone = NULL; |
| */ |
| |
| scf->handshake_timeout = NGX_CONF_UNSET_MSEC; |
| scf->certificates = NGX_CONF_UNSET_PTR; |
| scf->certificate_keys = NGX_CONF_UNSET_PTR; |
| scf->passwords = NGX_CONF_UNSET_PTR; |
| scf->conf_commands = NGX_CONF_UNSET_PTR; |
| scf->prefer_server_ciphers = NGX_CONF_UNSET; |
| scf->verify = NGX_CONF_UNSET_UINT; |
| scf->verify_depth = NGX_CONF_UNSET_UINT; |
| 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_uint_value(conf->verify, prev->verify, 0); |
| ngx_conf_merge_uint_value(conf->verify_depth, prev->verify_depth, 1); |
| |
| ngx_conf_merge_ptr_value(conf->certificates, prev->certificates, NULL); |
| ngx_conf_merge_ptr_value(conf->certificate_keys, prev->certificate_keys, |
| NULL); |
| |
| 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->client_certificate, prev->client_certificate, |
| ""); |
| ngx_conf_merge_str_value(conf->trusted_certificate, |
| prev->trusted_certificate, ""); |
| ngx_conf_merge_str_value(conf->crl, prev->crl, ""); |
| ngx_conf_merge_str_value(conf->alpn, prev->alpn, ""); |
| |
| 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); |
| |
| ngx_conf_merge_ptr_value(conf->conf_commands, prev->conf_commands, NULL); |
| |
| |
| conf->ssl.log = cf->log; |
| |
| if (!conf->listen) { |
| return NGX_CONF_OK; |
| } |
| |
| if (conf->certificates == NULL) { |
| ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
| "no \"ssl_certificate\" is defined for " |
| "the \"listen ... ssl\" directive in %s:%ui", |
| conf->file, conf->line); |
| return NGX_CONF_ERROR; |
| } |
| |
| if (conf->certificate_keys == NULL) { |
| ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
| "no \"ssl_certificate_key\" is defined for " |
| "the \"listen ... ssl\" directive in %s:%ui", |
| conf->file, conf->line); |
| return NGX_CONF_ERROR; |
| } |
| |
| if (conf->certificate_keys->nelts < conf->certificates->nelts) { |
| ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
| "no \"ssl_certificate_key\" is defined " |
| "for certificate \"%V\" and " |
| "the \"listen ... ssl\" directive in %s:%ui", |
| ((ngx_str_t *) conf->certificates->elts) |
| + conf->certificates->nelts - 1, |
| conf->file, conf->line); |
| 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) { |
| ngx_ssl_cleanup_ctx(&conf->ssl); |
| return NGX_CONF_ERROR; |
| } |
| |
| cln->handler = ngx_ssl_cleanup_ctx; |
| cln->data = &conf->ssl; |
| |
| #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
| SSL_CTX_set_tlsext_servername_callback(conf->ssl.ctx, |
| ngx_stream_ssl_servername); |
| #endif |
| |
| #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| if (conf->alpn.len) { |
| SSL_CTX_set_alpn_select_cb(conf->ssl.ctx, ngx_stream_ssl_alpn_select, |
| &conf->alpn); |
| } |
| #endif |
| |
| if (ngx_ssl_ciphers(cf, &conf->ssl, &conf->ciphers, |
| conf->prefer_server_ciphers) |
| != NGX_OK) |
| { |
| return NGX_CONF_ERROR; |
| } |
| |
| if (ngx_stream_ssl_compile_certificates(cf, conf) != NGX_OK) { |
| return NGX_CONF_ERROR; |
| } |
| |
| if (conf->certificate_values) { |
| |
| #ifdef SSL_R_CERT_CB_ERROR |
| |
| /* install callback to lookup certificates */ |
| |
| SSL_CTX_set_cert_cb(conf->ssl.ctx, ngx_stream_ssl_certificate, conf); |
| |
| #else |
| ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
| "variables in " |
| "\"ssl_certificate\" and \"ssl_certificate_key\" " |
| "directives are not supported on this platform"); |
| return NGX_CONF_ERROR; |
| #endif |
| |
| } else { |
| |
| /* configure certificates */ |
| |
| if (ngx_ssl_certificates(cf, &conf->ssl, conf->certificates, |
| conf->certificate_keys, conf->passwords) |
| != NGX_OK) |
| { |
| return NGX_CONF_ERROR; |
| } |
| } |
| |
| if (conf->verify) { |
| |
| if (conf->client_certificate.len == 0 && conf->verify != 3) { |
| ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
| "no ssl_client_certificate for ssl_verify_client"); |
| return NGX_CONF_ERROR; |
| } |
| |
| if (ngx_ssl_client_certificate(cf, &conf->ssl, |
| &conf->client_certificate, |
| conf->verify_depth) |
| != NGX_OK) |
| { |
| return NGX_CONF_ERROR; |
| } |
| |
| if (ngx_ssl_trusted_certificate(cf, &conf->ssl, |
| &conf->trusted_certificate, |
| conf->verify_depth) |
| != NGX_OK) |
| { |
| return NGX_CONF_ERROR; |
| } |
| |
| if (ngx_ssl_crl(cf, &conf->ssl, &conf->crl) != NGX_OK) { |
| return NGX_CONF_ERROR; |
| } |
| } |
| |
| 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->certificates, 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; |
| } |
| |
| if (ngx_ssl_conf_commands(cf, &conf->ssl, conf->conf_commands) != NGX_OK) { |
| return NGX_CONF_ERROR; |
| } |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_stream_ssl_compile_certificates(ngx_conf_t *cf, |
| ngx_stream_ssl_conf_t *conf) |
| { |
| ngx_str_t *cert, *key; |
| ngx_uint_t i, nelts; |
| ngx_stream_complex_value_t *cv; |
| ngx_stream_compile_complex_value_t ccv; |
| |
| cert = conf->certificates->elts; |
| key = conf->certificate_keys->elts; |
| nelts = conf->certificates->nelts; |
| |
| for (i = 0; i < nelts; i++) { |
| |
| if (ngx_stream_script_variables_count(&cert[i])) { |
| goto found; |
| } |
| |
| if (ngx_stream_script_variables_count(&key[i])) { |
| goto found; |
| } |
| } |
| |
| return NGX_OK; |
| |
| found: |
| |
| conf->certificate_values = ngx_array_create(cf->pool, nelts, |
| sizeof(ngx_stream_complex_value_t)); |
| if (conf->certificate_values == NULL) { |
| return NGX_ERROR; |
| } |
| |
| conf->certificate_key_values = ngx_array_create(cf->pool, nelts, |
| sizeof(ngx_stream_complex_value_t)); |
| if (conf->certificate_key_values == NULL) { |
| return NGX_ERROR; |
| } |
| |
| for (i = 0; i < nelts; i++) { |
| |
| cv = ngx_array_push(conf->certificate_values); |
| if (cv == NULL) { |
| return NGX_ERROR; |
| } |
| |
| ngx_memzero(&ccv, sizeof(ngx_stream_compile_complex_value_t)); |
| |
| ccv.cf = cf; |
| ccv.value = &cert[i]; |
| ccv.complex_value = cv; |
| ccv.zero = 1; |
| |
| if (ngx_stream_compile_complex_value(&ccv) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| cv = ngx_array_push(conf->certificate_key_values); |
| if (cv == NULL) { |
| return NGX_ERROR; |
| } |
| |
| ngx_memzero(&ccv, sizeof(ngx_stream_compile_complex_value_t)); |
| |
| ccv.cf = cf; |
| ccv.value = &key[i]; |
| ccv.complex_value = cv; |
| ccv.zero = 1; |
| |
| if (ngx_stream_compile_complex_value(&ccv) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| } |
| |
| conf->passwords = ngx_ssl_preserve_passwords(cf, conf->passwords); |
| if (conf->passwords == NULL) { |
| return NGX_ERROR; |
| } |
| |
| return NGX_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; |
| } |
| |
| |
| static char * |
| ngx_stream_ssl_alpn(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| |
| ngx_stream_ssl_conf_t *scf = conf; |
| |
| u_char *p; |
| size_t len; |
| ngx_str_t *value; |
| ngx_uint_t i; |
| |
| if (scf->alpn.len) { |
| return "is duplicate"; |
| } |
| |
| value = cf->args->elts; |
| |
| len = 0; |
| |
| for (i = 1; i < cf->args->nelts; i++) { |
| |
| if (value[i].len > 255) { |
| return "protocol too long"; |
| } |
| |
| len += value[i].len + 1; |
| } |
| |
| scf->alpn.data = ngx_pnalloc(cf->pool, len); |
| if (scf->alpn.data == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| p = scf->alpn.data; |
| |
| for (i = 1; i < cf->args->nelts; i++) { |
| *p++ = value[i].len; |
| p = ngx_cpymem(p, value[i].data, value[i].len); |
| } |
| |
| scf->alpn.len = len; |
| |
| return NGX_CONF_OK; |
| |
| #else |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "the \"ssl_alpn\" directive requires OpenSSL " |
| "with ALPN support"); |
| return NGX_CONF_ERROR; |
| #endif |
| } |
| |
| |
| static char * |
| ngx_stream_ssl_conf_command_check(ngx_conf_t *cf, void *post, void *data) |
| { |
| #ifndef SSL_CONF_FLAG_FILE |
| return "is not supported on this platform"; |
| #else |
| return NGX_CONF_OK; |
| #endif |
| } |
| |
| |
| static ngx_int_t |
| ngx_stream_ssl_init(ngx_conf_t *cf) |
| { |
| ngx_stream_handler_pt *h; |
| ngx_stream_core_main_conf_t *cmcf; |
| |
| cmcf = ngx_stream_conf_get_module_main_conf(cf, ngx_stream_core_module); |
| |
| h = ngx_array_push(&cmcf->phases[NGX_STREAM_SSL_PHASE].handlers); |
| if (h == NULL) { |
| return NGX_ERROR; |
| } |
| |
| *h = ngx_stream_ssl_handler; |
| |
| return NGX_OK; |
| } |
