diff options
Diffstat (limited to 'app/nginx/src/http/modules/ngx_http_ssl_module.c')
| -rw-r--r-- | app/nginx/src/http/modules/ngx_http_ssl_module.c | 992 |
1 files changed, 992 insertions, 0 deletions
diff --git a/app/nginx/src/http/modules/ngx_http_ssl_module.c b/app/nginx/src/http/modules/ngx_http_ssl_module.c new file mode 100644 index 0000000..2771ac1 --- /dev/null +++ b/app/nginx/src/http/modules/ngx_http_ssl_module.c @@ -0,0 +1,992 @@ + +/* + * 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_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_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), + NULL }, + + { 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_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_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_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_null_string, NULL, NULL, 0, 0, 0 } +}; + + +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->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_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; + } + + } + + 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 s; + ngx_http_ssl_srv_conf_t *sscf; + ngx_http_core_loc_conf_t *clcf; + ngx_http_core_srv_conf_t **cscfp; + 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; + } + } + + return NGX_OK; +} |