diff options
Diffstat (limited to 'app/nginx/src/stream/ngx_stream_ssl_module.c')
| -rw-r--r-- | app/nginx/src/stream/ngx_stream_ssl_module.c | 839 |
1 files changed, 839 insertions, 0 deletions
diff --git a/app/nginx/src/stream/ngx_stream_ssl_module.c b/app/nginx/src/stream/ngx_stream_ssl_module.c new file mode 100644 index 0000000..2f242b6 --- /dev/null +++ b/app/nginx/src/stream/ngx_stream_ssl_module.c @@ -0,0 +1,839 @@ + +/* + * 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); +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 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_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_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_null_string, NULL, NULL, 0, 0, 0 } +}; + + +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"; + + if (sslcf->ssl.ctx == NULL) { + ngx_log_error(NGX_LOG_ERR, c->log, 0, + "no \"ssl_certificate\" is defined " + "in server listening on SSL port"); + return NGX_ERROR; + } + + 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(sslcf->ssl.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(sslcf->ssl.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; + + s = c->data; + + if (ngx_ssl_create_connection(ssl, c, 0) == NGX_ERROR) { + 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); +} + + +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->protocols = 0; + * 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->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, NULL) != NGX_OK) { + return NGX_CONF_ERROR; + } + + cln = ngx_pool_cleanup_add(cf->pool, 0); + if (cln == NULL) { + return NGX_CONF_ERROR; + } + + cln->handler = ngx_ssl_cleanup_ctx; + cln->data = &conf->ssl; + + if (ngx_ssl_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_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_stream_ssl_sess_id_ctx, + conf->builtin_session_cache, + conf->shm_zone, conf->session_timeout) + != NGX_OK) + { + return NGX_CONF_ERROR; + } + + ngx_conf_merge_value(conf->session_tickets, + prev->session_tickets, 1); + +#ifdef SSL_OP_NO_TICKET + if (!conf->session_tickets) { + SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_NO_TICKET); + } +#endif + + ngx_conf_merge_ptr_value(conf->session_ticket_keys, + prev->session_ticket_keys, NULL); + + if (ngx_ssl_session_ticket_keys(cf, &conf->ssl, conf->session_ticket_keys) + != NGX_OK) + { + return NGX_CONF_ERROR; + } + + return NGX_CONF_OK; +} + + +static char * +ngx_stream_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) +{ + ngx_stream_ssl_conf_t *scf = conf; + + ngx_str_t *value; + + if (scf->passwords != NGX_CONF_UNSET_PTR) { + return "is duplicate"; + } + + value = cf->args->elts; + + scf->passwords = ngx_ssl_read_password_file(cf, &value[1]); + + if (scf->passwords == NULL) { + return NGX_CONF_ERROR; + } + + return NGX_CONF_OK; +} + + +static char * +ngx_stream_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) +{ + ngx_stream_ssl_conf_t *scf = conf; + + size_t len; + ngx_str_t *value, name, size; + ngx_int_t n; + ngx_uint_t i, j; + + value = cf->args->elts; + + for (i = 1; i < cf->args->nelts; i++) { + + if (ngx_strcmp(value[i].data, "off") == 0) { + scf->builtin_session_cache = NGX_SSL_NO_SCACHE; + continue; + } + + if (ngx_strcmp(value[i].data, "none") == 0) { + scf->builtin_session_cache = NGX_SSL_NONE_SCACHE; + continue; + } + + if (ngx_strcmp(value[i].data, "builtin") == 0) { + scf->builtin_session_cache = NGX_SSL_DFLT_BUILTIN_SCACHE; + continue; + } + + if (value[i].len > sizeof("builtin:") - 1 + && ngx_strncmp(value[i].data, "builtin:", sizeof("builtin:") - 1) + == 0) + { + n = ngx_atoi(value[i].data + sizeof("builtin:") - 1, + value[i].len - (sizeof("builtin:") - 1)); + + if (n == NGX_ERROR) { + goto invalid; + } + + scf->builtin_session_cache = n; + + continue; + } + + if (value[i].len > sizeof("shared:") - 1 + && ngx_strncmp(value[i].data, "shared:", sizeof("shared:") - 1) + == 0) + { + len = 0; + + for (j = sizeof("shared:") - 1; j < value[i].len; j++) { + if (value[i].data[j] == ':') { + break; + } + + len++; + } + + if (len == 0) { + goto invalid; + } + + name.len = len; + name.data = value[i].data + sizeof("shared:") - 1; + + size.len = value[i].len - j - 1; + size.data = name.data + len + 1; + + n = ngx_parse_size(&size); + + if (n == NGX_ERROR) { + goto invalid; + } + + if (n < (ngx_int_t) (8 * ngx_pagesize)) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "session cache \"%V\" is too small", + &value[i]); + + return NGX_CONF_ERROR; + } + + scf->shm_zone = ngx_shared_memory_add(cf, &name, n, + &ngx_stream_ssl_module); + if (scf->shm_zone == NULL) { + return NGX_CONF_ERROR; + } + + scf->shm_zone->init = ngx_ssl_session_cache_init; + + continue; + } + + goto invalid; + } + + if (scf->shm_zone && scf->builtin_session_cache == NGX_CONF_UNSET) { + scf->builtin_session_cache = NGX_SSL_NO_BUILTIN_SCACHE; + } + + return NGX_CONF_OK; + +invalid: + + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "invalid session cache \"%V\"", &value[i]); + + return NGX_CONF_ERROR; +} + + +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; +} |