Mercurial > hg > nginx
view src/stream/ngx_stream_ssl_module.c @ 7680:39501ce97e29
gRPC: generate error when response size is wrong.
As long as the "Content-Length" header is given, we now make sure
it exactly matches the size of the response. If it doesn't,
the response is considered malformed and must not be forwarded
(https://tools.ietf.org/html/rfc7540#section-8.1.2.6). While it
is not really possible to "not forward" the response which is already
being forwarded, we generate an error instead, which is the closest
equivalent.
Previous behaviour was to pass everything to the client, but this
seems to be suboptimal and causes issues (ticket #1695). Also this
directly contradicts HTTP/2 specification requirements.
Note that the new behaviour for the gRPC proxy is more strict than that
applied in other variants of proxying. This is intentional, as HTTP/2
specification requires us to do so, while in other types of proxying
malformed responses from backends are well known and historically
tolerated.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 06 Jul 2020 18:36:25 +0300 |
parents | ef7ee19776db |
children | 3bff3f397c05 |
line wrap: on
line source
/* * 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 int ngx_stream_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, 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 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_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_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_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 int ngx_stream_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, void *arg) { return SSL_TLSEXT_ERR_OK; } #endif #ifdef SSL_R_CERT_CB_ERROR 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->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->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->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->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 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 (ngx_ssl_ciphers(cf, &conf->ssl, &conf->ciphers, conf->prefer_server_ciphers) != 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; } 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 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; }