Mercurial > hg > nginx
view src/http/modules/ngx_http_ssl_module.c @ 7361:c09c7d47acb9
SSL: logging level of "no suitable signature algorithm".
The "no suitable signature algorithm" errors are reported by OpenSSL 1.1.1
when using TLSv1.3 if there are no shared signature algorithms. In
particular, this can happen if the client limits available signature
algorithms to something we don't have a certificate for, or to an empty
list. For example, the following command:
openssl s_client -connect 127.0.0.1:8443 -sigalgs rsa_pkcs1_sha1
will always result in the "no suitable signature algorithm" error
as the "rsa_pkcs1_sha1" algorithm refers solely to signatures which
appear in certificates and not defined for use in TLS 1.3 handshake
messages.
The SSL_R_NO_COMMON_SIGNATURE_ALGORITHMS error is what BoringSSL returns
in the same situation.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 25 Sep 2018 14:00:04 +0300 |
parents | ba971deb4b44 |
children | be2af41d3620 |
line wrap: on
line source
/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.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" #define NGX_HTTP_NPN_ADVERTISE "\x08http/1.1" #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation static int ngx_http_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 TLSEXT_TYPE_next_proto_neg static int ngx_http_ssl_npn_advertised(ngx_ssl_conn_t *ssl_conn, const unsigned char **out, unsigned int *outlen, void *arg); #endif static ngx_int_t ngx_http_ssl_static_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_ssl_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_ssl_add_variables(ngx_conf_t *cf); static void *ngx_http_ssl_create_srv_conf(ngx_conf_t *cf); static char *ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child); static char *ngx_http_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static ngx_int_t ngx_http_ssl_init(ngx_conf_t *cf); static ngx_conf_bitmask_t ngx_http_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_http_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_deprecated_t ngx_http_ssl_deprecated = { ngx_conf_deprecated, "ssl", "listen ... ssl" }; static ngx_command_t ngx_http_ssl_commands[] = { { ngx_string("ssl"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, ngx_http_ssl_enable, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, enable), &ngx_http_ssl_deprecated }, { ngx_string("ssl_certificate"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_array_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, certificates), NULL }, { ngx_string("ssl_certificate_key"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_array_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, certificate_keys), NULL }, { ngx_string("ssl_password_file"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_http_ssl_password_file, NGX_HTTP_SRV_CONF_OFFSET, 0, NULL }, { ngx_string("ssl_dhparam"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, dhparam), NULL }, { ngx_string("ssl_ecdh_curve"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, ecdh_curve), NULL }, { ngx_string("ssl_protocols"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_1MORE, ngx_conf_set_bitmask_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, protocols), &ngx_http_ssl_protocols }, { ngx_string("ssl_ciphers"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, ciphers), NULL }, { ngx_string("ssl_buffer_size"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, buffer_size), NULL }, { ngx_string("ssl_verify_client"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_enum_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, verify), &ngx_http_ssl_verify }, { ngx_string("ssl_verify_depth"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, verify_depth), NULL }, { ngx_string("ssl_client_certificate"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, client_certificate), NULL }, { ngx_string("ssl_trusted_certificate"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, trusted_certificate), NULL }, { ngx_string("ssl_prefer_server_ciphers"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, prefer_server_ciphers), NULL }, { ngx_string("ssl_session_cache"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE12, ngx_http_ssl_session_cache, NGX_HTTP_SRV_CONF_OFFSET, 0, NULL }, { ngx_string("ssl_session_tickets"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, session_tickets), NULL }, { ngx_string("ssl_session_ticket_key"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_array_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, session_ticket_keys), NULL }, { ngx_string("ssl_session_timeout"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_sec_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, session_timeout), NULL }, { ngx_string("ssl_crl"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, crl), NULL }, { ngx_string("ssl_stapling"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, stapling), NULL }, { ngx_string("ssl_stapling_file"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, stapling_file), NULL }, { ngx_string("ssl_stapling_responder"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, stapling_responder), NULL }, { ngx_string("ssl_stapling_verify"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, stapling_verify), NULL }, { ngx_string("ssl_early_data"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_ssl_srv_conf_t, early_data), NULL }, ngx_null_command }; static ngx_http_module_t ngx_http_ssl_module_ctx = { ngx_http_ssl_add_variables, /* preconfiguration */ ngx_http_ssl_init, /* postconfiguration */ NULL, /* create main configuration */ NULL, /* init main configuration */ ngx_http_ssl_create_srv_conf, /* create server configuration */ ngx_http_ssl_merge_srv_conf, /* merge server configuration */ NULL, /* create location configuration */ NULL /* merge location configuration */ }; ngx_module_t ngx_http_ssl_module = { NGX_MODULE_V1, &ngx_http_ssl_module_ctx, /* module context */ ngx_http_ssl_commands, /* module directives */ NGX_HTTP_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_http_variable_t ngx_http_ssl_vars[] = { { ngx_string("ssl_protocol"), NULL, ngx_http_ssl_static_variable, (uintptr_t) ngx_ssl_get_protocol, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_cipher"), NULL, ngx_http_ssl_static_variable, (uintptr_t) ngx_ssl_get_cipher_name, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_ciphers"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_ciphers, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_curves"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_curves, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_session_id"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_session_id, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_session_reused"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_session_reused, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_early_data"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_early_data, NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 }, { ngx_string("ssl_server_name"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_server_name, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_cert"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_certificate, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_raw_cert"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_raw_certificate, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_escaped_cert"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_escaped_certificate, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_s_dn"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_subject_dn, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_i_dn"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_issuer_dn, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_s_dn_legacy"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_subject_dn_legacy, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_i_dn_legacy"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_issuer_dn_legacy, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_serial"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_serial_number, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_fingerprint"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_fingerprint, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_verify"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_client_verify, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_v_start"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_client_v_start, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_v_end"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_client_v_end, NGX_HTTP_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_v_remain"), NULL, ngx_http_ssl_variable, (uintptr_t) ngx_ssl_get_client_v_remain, NGX_HTTP_VAR_CHANGEABLE, 0 }, ngx_http_null_variable }; static ngx_str_t ngx_http_ssl_sess_id_ctx = ngx_string("HTTP"); #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation static int ngx_http_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) { unsigned int srvlen; unsigned char *srv; #if (NGX_DEBUG) unsigned int i; #endif #if (NGX_HTTP_V2) ngx_http_connection_t *hc; #endif #if (NGX_HTTP_V2 || NGX_DEBUG) ngx_connection_t *c; c = ngx_ssl_get_connection(ssl_conn); #endif #if (NGX_DEBUG) for (i = 0; i < inlen; i += in[i] + 1) { ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "SSL ALPN supported by client: %*s", (size_t) in[i], &in[i + 1]); } #endif #if (NGX_HTTP_V2) hc = c->data; if (hc->addr_conf->http2) { srv = (unsigned char *) NGX_HTTP_V2_ALPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE; srvlen = sizeof(NGX_HTTP_V2_ALPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE) - 1; } else #endif { srv = (unsigned char *) NGX_HTTP_NPN_ADVERTISE; srvlen = sizeof(NGX_HTTP_NPN_ADVERTISE) - 1; } if (SSL_select_next_proto((unsigned char **) out, outlen, srv, srvlen, in, inlen) != OPENSSL_NPN_NEGOTIATED) { return SSL_TLSEXT_ERR_NOACK; } ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "SSL ALPN selected: %*s", (size_t) *outlen, *out); return SSL_TLSEXT_ERR_OK; } #endif #ifdef TLSEXT_TYPE_next_proto_neg static int ngx_http_ssl_npn_advertised(ngx_ssl_conn_t *ssl_conn, const unsigned char **out, unsigned int *outlen, void *arg) { #if (NGX_HTTP_V2 || NGX_DEBUG) ngx_connection_t *c; c = ngx_ssl_get_connection(ssl_conn); ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "SSL NPN advertised"); #endif #if (NGX_HTTP_V2) { ngx_http_connection_t *hc; hc = c->data; if (hc->addr_conf->http2) { *out = (unsigned char *) NGX_HTTP_V2_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE; *outlen = sizeof(NGX_HTTP_V2_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE) - 1; return SSL_TLSEXT_ERR_OK; } } #endif *out = (unsigned char *) NGX_HTTP_NPN_ADVERTISE; *outlen = sizeof(NGX_HTTP_NPN_ADVERTISE) - 1; return SSL_TLSEXT_ERR_OK; } #endif static ngx_int_t ngx_http_ssl_static_variable(ngx_http_request_t *r, ngx_http_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 s; if (r->connection->ssl) { (void) handler(r->connection, NULL, &s); v->data = s.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_http_ssl_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) { ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data; ngx_str_t s; if (r->connection->ssl) { if (handler(r->connection, r->pool, &s) != NGX_OK) { return NGX_ERROR; } v->len = s.len; v->data = s.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_http_ssl_add_variables(ngx_conf_t *cf) { ngx_http_variable_t *var, *v; for (v = ngx_http_ssl_vars; v->name.len; v++) { var = ngx_http_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_http_ssl_create_srv_conf(ngx_conf_t *cf) { ngx_http_ssl_srv_conf_t *sscf; sscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssl_srv_conf_t)); if (sscf == NULL) { return NULL; } /* * set by ngx_pcalloc(): * * sscf->protocols = 0; * sscf->dhparam = { 0, NULL }; * sscf->ecdh_curve = { 0, NULL }; * sscf->client_certificate = { 0, NULL }; * sscf->trusted_certificate = { 0, NULL }; * sscf->crl = { 0, NULL }; * sscf->ciphers = { 0, NULL }; * sscf->shm_zone = NULL; * sscf->stapling_file = { 0, NULL }; * sscf->stapling_responder = { 0, NULL }; */ sscf->enable = NGX_CONF_UNSET; sscf->prefer_server_ciphers = NGX_CONF_UNSET; sscf->early_data = NGX_CONF_UNSET; sscf->buffer_size = NGX_CONF_UNSET_SIZE; sscf->verify = NGX_CONF_UNSET_UINT; sscf->verify_depth = NGX_CONF_UNSET_UINT; sscf->certificates = NGX_CONF_UNSET_PTR; sscf->certificate_keys = NGX_CONF_UNSET_PTR; sscf->passwords = NGX_CONF_UNSET_PTR; sscf->builtin_session_cache = NGX_CONF_UNSET; sscf->session_timeout = NGX_CONF_UNSET; sscf->session_tickets = NGX_CONF_UNSET; sscf->session_ticket_keys = NGX_CONF_UNSET_PTR; sscf->stapling = NGX_CONF_UNSET; sscf->stapling_verify = NGX_CONF_UNSET; return sscf; } static char * ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) { ngx_http_ssl_srv_conf_t *prev = parent; ngx_http_ssl_srv_conf_t *conf = child; ngx_pool_cleanup_t *cln; if (conf->enable == NGX_CONF_UNSET) { if (prev->enable == NGX_CONF_UNSET) { conf->enable = 0; } else { conf->enable = prev->enable; conf->file = prev->file; conf->line = prev->line; } } 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_value(conf->early_data, prev->early_data, 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_size_value(conf->buffer_size, prev->buffer_size, NGX_SSL_BUFSIZE); 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); ngx_conf_merge_value(conf->stapling, prev->stapling, 0); ngx_conf_merge_value(conf->stapling_verify, prev->stapling_verify, 0); ngx_conf_merge_str_value(conf->stapling_file, prev->stapling_file, ""); ngx_conf_merge_str_value(conf->stapling_responder, prev->stapling_responder, ""); conf->ssl.log = cf->log; if (conf->enable) { if (conf->certificates == NULL) { ngx_log_error(NGX_LOG_EMERG, cf->log, 0, "no \"ssl_certificate\" is defined for " "the \"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 \"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 \"ssl\" directive in %s:%ui", ((ngx_str_t *) conf->certificates->elts) + conf->certificates->nelts - 1, conf->file, conf->line); return NGX_CONF_ERROR; } } else { if (conf->certificates == NULL) { return NGX_CONF_OK; } if (conf->certificate_keys == NULL || 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\"", ((ngx_str_t *) conf->certificates->elts) + conf->certificates->nelts - 1); return NGX_CONF_ERROR; } } if (ngx_ssl_create(&conf->ssl, conf->protocols, conf) != NGX_OK) { return NGX_CONF_ERROR; } #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME if (SSL_CTX_set_tlsext_servername_callback(conf->ssl.ctx, ngx_http_ssl_servername) == 0) { ngx_log_error(NGX_LOG_WARN, cf->log, 0, "nginx was built with SNI support, however, now it is linked " "dynamically to an OpenSSL library which has no tlsext support, " "therefore SNI is not available"); } #endif #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation SSL_CTX_set_alpn_select_cb(conf->ssl.ctx, ngx_http_ssl_alpn_select, NULL); #endif #ifdef TLSEXT_TYPE_next_proto_neg SSL_CTX_set_next_protos_advertised_cb(conf->ssl.ctx, ngx_http_ssl_npn_advertised, NULL); #endif 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_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; } conf->ssl.buffer_size = conf->buffer_size; 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_client_verify"); 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_http_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; } if (conf->stapling) { if (ngx_ssl_stapling(cf, &conf->ssl, &conf->stapling_file, &conf->stapling_responder, conf->stapling_verify) != NGX_OK) { return NGX_CONF_ERROR; } } if (ngx_ssl_early_data(cf, &conf->ssl, conf->early_data) != NGX_OK) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } static char * ngx_http_ssl_enable(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_ssl_srv_conf_t *sscf = conf; char *rv; rv = ngx_conf_set_flag_slot(cf, cmd, conf); if (rv != NGX_CONF_OK) { return rv; } sscf->file = cf->conf_file->file.name.data; sscf->line = cf->conf_file->line; return NGX_CONF_OK; } static char * ngx_http_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_ssl_srv_conf_t *sscf = conf; ngx_str_t *value; if (sscf->passwords != NGX_CONF_UNSET_PTR) { return "is duplicate"; } value = cf->args->elts; sscf->passwords = ngx_ssl_read_password_file(cf, &value[1]); if (sscf->passwords == NULL) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } static char * ngx_http_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_ssl_srv_conf_t *sscf = 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) { sscf->builtin_session_cache = NGX_SSL_NO_SCACHE; continue; } if (ngx_strcmp(value[i].data, "none") == 0) { sscf->builtin_session_cache = NGX_SSL_NONE_SCACHE; continue; } if (ngx_strcmp(value[i].data, "builtin") == 0) { sscf->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; } sscf->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; } sscf->shm_zone = ngx_shared_memory_add(cf, &name, n, &ngx_http_ssl_module); if (sscf->shm_zone == NULL) { return NGX_CONF_ERROR; } sscf->shm_zone->init = ngx_ssl_session_cache_init; continue; } goto invalid; } if (sscf->shm_zone && sscf->builtin_session_cache == NGX_CONF_UNSET) { sscf->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_http_ssl_init(ngx_conf_t *cf) { ngx_uint_t a, p, s; ngx_http_conf_addr_t *addr; ngx_http_conf_port_t *port; ngx_http_ssl_srv_conf_t *sscf; ngx_http_core_loc_conf_t *clcf; ngx_http_core_srv_conf_t **cscfp, *cscf; ngx_http_core_main_conf_t *cmcf; cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); cscfp = cmcf->servers.elts; for (s = 0; s < cmcf->servers.nelts; s++) { sscf = cscfp[s]->ctx->srv_conf[ngx_http_ssl_module.ctx_index]; if (sscf->ssl.ctx == NULL || !sscf->stapling) { continue; } clcf = cscfp[s]->ctx->loc_conf[ngx_http_core_module.ctx_index]; if (ngx_ssl_stapling_resolver(cf, &sscf->ssl, clcf->resolver, clcf->resolver_timeout) != NGX_OK) { return NGX_ERROR; } } if (cmcf->ports == NULL) { return NGX_OK; } port = cmcf->ports->elts; for (p = 0; p < cmcf->ports->nelts; p++) { addr = port[p].addrs.elts; for (a = 0; a < port[p].addrs.nelts; a++) { if (!addr[a].opt.ssl) { continue; } cscf = addr[a].default_server; sscf = cscf->ctx->srv_conf[ngx_http_ssl_module.ctx_index]; if (sscf->certificates == NULL) { ngx_log_error(NGX_LOG_EMERG, cf->log, 0, "no \"ssl_certificate\" is defined for " "the \"listen ... ssl\" directive in %s:%ui", cscf->file_name, cscf->line); return NGX_ERROR; } } } return NGX_OK; }