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src/event/ngx_event_openssl.c - nginx source code
Global variables defined
Data types defined
Functions defined
Macros defined
Source code
- #include <ngx_config.h>
- #include <ngx_core.h>
- #include <ngx_event.h>
- #define NGX_SSL_PASSWORD_BUFFER_SIZE 4096
- typedef struct {
- ngx_uint_t engine;
- } ngx_openssl_conf_t;
- static ngx_inline ngx_int_t ngx_ssl_cert_already_in_hash(void);
- static int ngx_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store);
- static void ngx_ssl_info_callback(const ngx_ssl_conn_t *ssl_conn, int where,
- int ret);
- static int ngx_ssl_cmp_x509_name(const X509_NAME *const *a,
- const X509_NAME *const *b);
- static void ngx_ssl_passwords_cleanup(void *data);
- static int ngx_ssl_new_client_session(ngx_ssl_conn_t *ssl_conn,
- ngx_ssl_session_t *sess);
- #ifdef SSL_READ_EARLY_DATA_SUCCESS
- static ngx_int_t ngx_ssl_try_early_data(ngx_connection_t *c);
- #endif
- static void ngx_ssl_handshake_handler(ngx_event_t *ev);
- #ifdef SSL_READ_EARLY_DATA_SUCCESS
- static ssize_t ngx_ssl_recv_early(ngx_connection_t *c, u_char *buf,
- size_t size);
- #endif
- static ngx_int_t ngx_ssl_handle_recv(ngx_connection_t *c, int n);
- static void ngx_ssl_write_handler(ngx_event_t *wev);
- #ifdef SSL_READ_EARLY_DATA_SUCCESS
- static ssize_t ngx_ssl_write_early(ngx_connection_t *c, u_char *data,
- size_t size);
- #endif
- static ssize_t ngx_ssl_sendfile(ngx_connection_t *c, ngx_buf_t *file,
- size_t size);
- static void ngx_ssl_read_handler(ngx_event_t *rev);
- static void ngx_ssl_shutdown_handler(ngx_event_t *ev);
- static void ngx_ssl_connection_error(ngx_connection_t *c, int sslerr,
- ngx_err_t err, char *text);
- static void ngx_ssl_clear_error(ngx_log_t *log);
- static ngx_int_t ngx_ssl_session_id_context(ngx_ssl_t *ssl,
- ngx_str_t *sess_ctx, ngx_array_t *certificates);
- static int ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn,
- ngx_ssl_session_t *sess);
- static ngx_ssl_session_t *ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn,
- #if OPENSSL_VERSION_NUMBER >= 0x10100003L
- const
- #endif
- u_char *id, int len, int *copy);
- static void ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess);
- static void ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
- ngx_slab_pool_t *shpool, ngx_uint_t n);
- static void ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
- ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
- #ifdef SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB
- static int ngx_ssl_ticket_key_callback(ngx_ssl_conn_t *ssl_conn,
- unsigned char *name, unsigned char *iv, EVP_CIPHER_CTX *ectx,
- HMAC_CTX *hctx, int enc);
- static ngx_int_t ngx_ssl_rotate_ticket_keys(SSL_CTX *ssl_ctx, ngx_log_t *log);
- static void ngx_ssl_ticket_keys_cleanup(void *data);
- #endif
- #ifndef X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT
- static ngx_int_t ngx_ssl_check_name(ngx_str_t *name, ASN1_STRING *str);
- #endif
- static time_t ngx_ssl_parse_time(
- #if OPENSSL_VERSION_NUMBER > 0x10100000L
- const
- #endif
- ASN1_TIME *asn1time, ngx_log_t *log);
- static void *ngx_openssl_create_conf(ngx_cycle_t *cycle);
- static char *ngx_openssl_engine(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
- static void ngx_openssl_exit(ngx_cycle_t *cycle);
- static ngx_command_t ngx_openssl_commands[] = {
- { ngx_string("ssl_engine"),
- NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
- ngx_openssl_engine,
- 0,
- 0,
- NULL },
- ngx_null_command
- };
- static ngx_core_module_t ngx_openssl_module_ctx = {
- ngx_string("openssl"),
- ngx_openssl_create_conf,
- NULL
- };
- ngx_module_t ngx_openssl_module = {
- NGX_MODULE_V1,
- &ngx_openssl_module_ctx,
- ngx_openssl_commands,
- NGX_CORE_MODULE,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- ngx_openssl_exit,
- NGX_MODULE_V1_PADDING
- };
- int ngx_ssl_connection_index;
- int ngx_ssl_server_conf_index;
- int ngx_ssl_session_cache_index;
- int ngx_ssl_ticket_keys_index;
- int ngx_ssl_ocsp_index;
- int ngx_ssl_index;
- int ngx_ssl_certificate_name_index;
- ngx_int_t
- ngx_ssl_init(ngx_log_t *log)
- {
- #if (OPENSSL_INIT_LOAD_CONFIG && !defined LIBRESSL_VERSION_NUMBER)
- uint64_t opts;
- OPENSSL_INIT_SETTINGS *init;
- opts = OPENSSL_INIT_LOAD_CONFIG;
- #if (NGX_OPENSSL_NO_CONFIG)
- if (getenv("OPENSSL_CONF") == NULL) {
- opts = OPENSSL_INIT_NO_LOAD_CONFIG;
- }
- #endif
- init = OPENSSL_INIT_new();
- if (init == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0, "OPENSSL_INIT_new() failed");
- return NGX_ERROR;
- }
- #ifndef OPENSSL_NO_STDIO
- if (OPENSSL_INIT_set_config_appname(init, "nginx") == 0) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0,
- "OPENSSL_INIT_set_config_appname() failed");
- return NGX_ERROR;
- }
- #endif
- if (OPENSSL_init_ssl(opts, init) == 0) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0, "OPENSSL_init_ssl() failed");
- return NGX_ERROR;
- }
- OPENSSL_INIT_free(init);
-
- ERR_clear_error();
- #else
- #if (NGX_OPENSSL_NO_CONFIG)
- if (getenv("OPENSSL_CONF") == NULL) {
- OPENSSL_no_config();
- }
- #endif
- OPENSSL_config("nginx");
- SSL_library_init();
- SSL_load_error_strings();
- OpenSSL_add_all_algorithms();
- #endif
- #ifndef SSL_OP_NO_COMPRESSION
- {
-
- int n;
- STACK_OF(SSL_COMP) *ssl_comp_methods;
- ssl_comp_methods = SSL_COMP_get_compression_methods();
- n = sk_SSL_COMP_num(ssl_comp_methods);
- while (n--) {
- (void) sk_SSL_COMP_pop(ssl_comp_methods);
- }
- }
- #endif
- ngx_ssl_connection_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
- if (ngx_ssl_connection_index == -1) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0, "SSL_get_ex_new_index() failed");
- return NGX_ERROR;
- }
- ngx_ssl_server_conf_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
- NULL);
- if (ngx_ssl_server_conf_index == -1) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0,
- "SSL_CTX_get_ex_new_index() failed");
- return NGX_ERROR;
- }
- ngx_ssl_session_cache_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
- NULL);
- if (ngx_ssl_session_cache_index == -1) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0,
- "SSL_CTX_get_ex_new_index() failed");
- return NGX_ERROR;
- }
- ngx_ssl_ticket_keys_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
- NULL);
- if (ngx_ssl_ticket_keys_index == -1) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0,
- "SSL_CTX_get_ex_new_index() failed");
- return NGX_ERROR;
- }
- ngx_ssl_ocsp_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, NULL);
- if (ngx_ssl_ocsp_index == -1) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0,
- "SSL_CTX_get_ex_new_index() failed");
- return NGX_ERROR;
- }
- ngx_ssl_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, NULL);
- if (ngx_ssl_index == -1) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0,
- "SSL_CTX_get_ex_new_index() failed");
- return NGX_ERROR;
- }
- ngx_ssl_certificate_name_index = X509_get_ex_new_index(0, NULL, NULL, NULL,
- NULL);
- if (ngx_ssl_certificate_name_index == -1) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0, "X509_get_ex_new_index() failed");
- return NGX_ERROR;
- }
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data)
- {
- ssl->ctx = SSL_CTX_new(SSLv23_method());
- if (ssl->ctx == NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "SSL_CTX_new() failed");
- return NGX_ERROR;
- }
- if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_server_conf_index, data) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_set_ex_data() failed");
- return NGX_ERROR;
- }
- if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_index, ssl) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_set_ex_data() failed");
- return NGX_ERROR;
- }
- ngx_rbtree_init(&ssl->staple_rbtree, &ssl->staple_sentinel,
- ngx_rbtree_insert_value);
- ssl->buffer_size = NGX_SSL_BUFSIZE;
-
- #ifdef SSL_OP_MICROSOFT_SESS_ID_BUG
- SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_SESS_ID_BUG);
- #endif
- #ifdef SSL_OP_NETSCAPE_CHALLENGE_BUG
- SSL_CTX_set_options(ssl->ctx, SSL_OP_NETSCAPE_CHALLENGE_BUG);
- #endif
-
- #ifdef SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG
- SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG);
- #endif
- #ifdef SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER
- SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
- #endif
- #ifdef SSL_OP_SSLEAY_080_CLIENT_DH_BUG
- SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
- #endif
- #ifdef SSL_OP_TLS_D5_BUG
- SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_D5_BUG);
- #endif
- #ifdef SSL_OP_TLS_BLOCK_PADDING_BUG
- SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_BLOCK_PADDING_BUG);
- #endif
- #ifdef SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
- SSL_CTX_set_options(ssl->ctx, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
- #endif
- SSL_CTX_set_options(ssl->ctx, SSL_OP_SINGLE_DH_USE);
- #if OPENSSL_VERSION_NUMBER >= 0x009080dfL
-
- SSL_CTX_clear_options(ssl->ctx,
- SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1);
- #endif
- if (!(protocols & NGX_SSL_SSLv2)) {
- SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_SSLv2);
- }
- if (!(protocols & NGX_SSL_SSLv3)) {
- SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_SSLv3);
- }
- if (!(protocols & NGX_SSL_TLSv1)) {
- SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1);
- }
- #ifdef SSL_OP_NO_TLSv1_1
- SSL_CTX_clear_options(ssl->ctx, SSL_OP_NO_TLSv1_1);
- if (!(protocols & NGX_SSL_TLSv1_1)) {
- SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_1);
- }
- #endif
- #ifdef SSL_OP_NO_TLSv1_2
- SSL_CTX_clear_options(ssl->ctx, SSL_OP_NO_TLSv1_2);
- if (!(protocols & NGX_SSL_TLSv1_2)) {
- SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_2);
- }
- #endif
- #ifdef SSL_OP_NO_TLSv1_3
- SSL_CTX_clear_options(ssl->ctx, SSL_OP_NO_TLSv1_3);
- if (!(protocols & NGX_SSL_TLSv1_3)) {
- SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_TLSv1_3);
- }
- #endif
- #ifdef SSL_CTX_set_min_proto_version
- SSL_CTX_set_min_proto_version(ssl->ctx, 0);
- SSL_CTX_set_max_proto_version(ssl->ctx, TLS1_2_VERSION);
- #endif
- #ifdef TLS1_3_VERSION
- SSL_CTX_set_min_proto_version(ssl->ctx, 0);
- SSL_CTX_set_max_proto_version(ssl->ctx, TLS1_3_VERSION);
- #endif
- #ifdef SSL_OP_NO_COMPRESSION
- SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_COMPRESSION);
- #endif
- #ifdef SSL_OP_NO_ANTI_REPLAY
- SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_ANTI_REPLAY);
- #endif
- #ifdef SSL_OP_NO_CLIENT_RENEGOTIATION
- SSL_CTX_set_options(ssl->ctx, SSL_OP_NO_CLIENT_RENEGOTIATION);
- #endif
- #ifdef SSL_OP_IGNORE_UNEXPECTED_EOF
- SSL_CTX_set_options(ssl->ctx, SSL_OP_IGNORE_UNEXPECTED_EOF);
- #endif
- #ifdef SSL_MODE_RELEASE_BUFFERS
- SSL_CTX_set_mode(ssl->ctx, SSL_MODE_RELEASE_BUFFERS);
- #endif
- #ifdef SSL_MODE_NO_AUTO_CHAIN
- SSL_CTX_set_mode(ssl->ctx, SSL_MODE_NO_AUTO_CHAIN);
- #endif
- SSL_CTX_set_read_ahead(ssl->ctx, 1);
- SSL_CTX_set_info_callback(ssl->ctx, ngx_ssl_info_callback);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_certificates(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_array_t *certs,
- ngx_array_t *keys, ngx_array_t *passwords)
- {
- ngx_str_t *cert, *key;
- ngx_uint_t i;
- cert = certs->elts;
- key = keys->elts;
- for (i = 0; i < certs->nelts; i++) {
- if (ngx_ssl_certificate(cf, ssl, &cert[i], &key[i], passwords)
- != NGX_OK)
- {
- return NGX_ERROR;
- }
- }
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
- ngx_str_t *key, ngx_array_t *passwords)
- {
- char *err;
- X509 *x509, **elm;
- EVP_PKEY *pkey;
- STACK_OF(X509) *chain;
- chain = ngx_ssl_cache_fetch(cf, NGX_SSL_CACHE_CERT, &err, cert, NULL);
- if (chain == NULL) {
- if (err != NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "cannot load certificate \"%s\": %s",
- cert->data, err);
- }
- return NGX_ERROR;
- }
- x509 = sk_X509_shift(chain);
- if (SSL_CTX_use_certificate(ssl->ctx, x509) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_use_certificate(\"%s\") failed", cert->data);
- X509_free(x509);
- sk_X509_pop_free(chain, X509_free);
- return NGX_ERROR;
- }
- if (X509_set_ex_data(x509, ngx_ssl_certificate_name_index, cert->data)
- == 0)
- {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "X509_set_ex_data() failed");
- X509_free(x509);
- sk_X509_pop_free(chain, X509_free);
- return NGX_ERROR;
- }
- if (ssl->certs.elts == NULL) {
- if (ngx_array_init(&ssl->certs, cf->pool, 1, sizeof(X509 *))
- != NGX_OK)
- {
- X509_free(x509);
- sk_X509_pop_free(chain, X509_free);
- return NGX_ERROR;
- }
- }
- elm = ngx_array_push(&ssl->certs);
- if (elm == NULL) {
- X509_free(x509);
- sk_X509_pop_free(chain, X509_free);
- return NGX_ERROR;
- }
- *elm = x509;
-
- #ifdef SSL_CTX_set0_chain
- if (SSL_CTX_set0_chain(ssl->ctx, chain) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_set0_chain(\"%s\") failed", cert->data);
- sk_X509_pop_free(chain, X509_free);
- return NGX_ERROR;
- }
- #else
- {
- int n;
-
- n = sk_X509_num(chain);
- while (n--) {
- x509 = sk_X509_shift(chain);
- if (SSL_CTX_add_extra_chain_cert(ssl->ctx, x509) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_add_extra_chain_cert(\"%s\") failed",
- cert->data);
- sk_X509_pop_free(chain, X509_free);
- return NGX_ERROR;
- }
- }
- sk_X509_free(chain);
- }
- #endif
- pkey = ngx_ssl_cache_fetch(cf, NGX_SSL_CACHE_PKEY, &err, key, passwords);
- if (pkey == NULL) {
- if (err != NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "cannot load certificate key \"%s\": %s",
- key->data, err);
- }
- return NGX_ERROR;
- }
- if (SSL_CTX_use_PrivateKey(ssl->ctx, pkey) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_use_PrivateKey(\"%s\") failed", key->data);
- EVP_PKEY_free(pkey);
- return NGX_ERROR;
- }
- EVP_PKEY_free(pkey);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_connection_certificate(ngx_connection_t *c, ngx_pool_t *pool,
- ngx_str_t *cert, ngx_str_t *key, ngx_array_t *passwords)
- {
- char *err;
- X509 *x509;
- EVP_PKEY *pkey;
- STACK_OF(X509) *chain;
- chain = ngx_ssl_cache_connection_fetch(pool, NGX_SSL_CACHE_CERT, &err,
- cert, NULL);
- if (chain == NULL) {
- if (err != NULL) {
- ngx_ssl_error(NGX_LOG_ERR, c->log, 0,
- "cannot load certificate \"%s\": %s",
- cert->data, err);
- }
- return NGX_ERROR;
- }
- x509 = sk_X509_shift(chain);
- if (SSL_use_certificate(c->ssl->connection, x509) == 0) {
- ngx_ssl_error(NGX_LOG_ERR, c->log, 0,
- "SSL_use_certificate(\"%s\") failed", cert->data);
- X509_free(x509);
- sk_X509_pop_free(chain, X509_free);
- return NGX_ERROR;
- }
- X509_free(x509);
- #ifdef SSL_set0_chain
-
- if (SSL_set0_chain(c->ssl->connection, chain) == 0) {
- ngx_ssl_error(NGX_LOG_ERR, c->log, 0,
- "SSL_set0_chain(\"%s\") failed", cert->data);
- sk_X509_pop_free(chain, X509_free);
- return NGX_ERROR;
- }
- #endif
- pkey = ngx_ssl_cache_connection_fetch(pool, NGX_SSL_CACHE_PKEY, &err,
- key, passwords);
- if (pkey == NULL) {
- if (err != NULL) {
- ngx_ssl_error(NGX_LOG_ERR, c->log, 0,
- "cannot load certificate key \"%s\": %s",
- key->data, err);
- }
- return NGX_ERROR;
- }
- if (SSL_use_PrivateKey(c->ssl->connection, pkey) == 0) {
- ngx_ssl_error(NGX_LOG_ERR, c->log, 0,
- "SSL_use_PrivateKey(\"%s\") failed", key->data);
- EVP_PKEY_free(pkey);
- return NGX_ERROR;
- }
- EVP_PKEY_free(pkey);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_ciphers(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *ciphers,
- ngx_uint_t prefer_server_ciphers)
- {
- if (SSL_CTX_set_cipher_list(ssl->ctx, (char *) ciphers->data) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_set_cipher_list(\"%V\") failed",
- ciphers);
- return NGX_ERROR;
- }
- if (prefer_server_ciphers) {
- SSL_CTX_set_options(ssl->ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
- }
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_client_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
- ngx_int_t depth)
- {
- int n, i;
- char *err;
- X509 *x509;
- X509_NAME *name;
- X509_STORE *store;
- STACK_OF(X509) *chain;
- STACK_OF(X509_NAME) *list;
- SSL_CTX_set_verify(ssl->ctx, SSL_VERIFY_PEER, ngx_ssl_verify_callback);
- SSL_CTX_set_verify_depth(ssl->ctx, depth);
- if (cert->len == 0) {
- return NGX_OK;
- }
- list = sk_X509_NAME_new(ngx_ssl_cmp_x509_name);
- if (list == NULL) {
- return NGX_ERROR;
- }
- store = SSL_CTX_get_cert_store(ssl->ctx);
- if (store == NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_get_cert_store() failed");
- return NGX_ERROR;
- }
- chain = ngx_ssl_cache_fetch(cf, NGX_SSL_CACHE_CA, &err, cert, NULL);
- if (chain == NULL) {
- if (err != NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "cannot load certificate \"%s\": %s",
- cert->data, err);
- }
- sk_X509_NAME_pop_free(list, X509_NAME_free);
- return NGX_ERROR;
- }
- n = sk_X509_num(chain);
- for (i = 0; i < n; i++) {
- x509 = sk_X509_value(chain, i);
- if (X509_STORE_add_cert(store, x509) != 1) {
- if (ngx_ssl_cert_already_in_hash()) {
- continue;
- }
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "X509_STORE_add_cert(\"%s\") failed", cert->data);
- sk_X509_NAME_pop_free(list, X509_NAME_free);
- sk_X509_pop_free(chain, X509_free);
- return NGX_ERROR;
- }
- name = X509_get_subject_name(x509);
- if (name == NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "X509_get_subject_name(\"%s\") failed", cert->data);
- sk_X509_NAME_pop_free(list, X509_NAME_free);
- sk_X509_pop_free(chain, X509_free);
- return NGX_ERROR;
- }
- name = X509_NAME_dup(name);
- if (name == NULL) {
- sk_X509_NAME_pop_free(list, X509_NAME_free);
- sk_X509_pop_free(chain, X509_free);
- return NGX_ERROR;
- }
- #ifdef OPENSSL_IS_BORINGSSL
- if (sk_X509_NAME_find(list, NULL, name) > 0) {
- #else
- if (sk_X509_NAME_find(list, name) >= 0) {
- #endif
- X509_NAME_free(name);
- continue;
- }
- if (sk_X509_NAME_push(list, name) == 0) {
- sk_X509_NAME_pop_free(list, X509_NAME_free);
- sk_X509_pop_free(chain, X509_free);
- X509_NAME_free(name);
- return NGX_ERROR;
- }
- }
- sk_X509_pop_free(chain, X509_free);
- SSL_CTX_set_client_CA_list(ssl->ctx, list);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_trusted_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
- ngx_int_t depth)
- {
- int i, n;
- char *err;
- X509 *x509;
- X509_STORE *store;
- STACK_OF(X509) *chain;
- SSL_CTX_set_verify(ssl->ctx, SSL_CTX_get_verify_mode(ssl->ctx),
- ngx_ssl_verify_callback);
- SSL_CTX_set_verify_depth(ssl->ctx, depth);
- if (cert->len == 0) {
- return NGX_OK;
- }
- store = SSL_CTX_get_cert_store(ssl->ctx);
- if (store == NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_get_cert_store() failed");
- return NGX_ERROR;
- }
- chain = ngx_ssl_cache_fetch(cf, NGX_SSL_CACHE_CA, &err, cert, NULL);
- if (chain == NULL) {
- if (err != NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "cannot load certificate \"%s\": %s",
- cert->data, err);
- }
- return NGX_ERROR;
- }
- n = sk_X509_num(chain);
- for (i = 0; i < n; i++) {
- x509 = sk_X509_value(chain, i);
- if (X509_STORE_add_cert(store, x509) != 1) {
- if (ngx_ssl_cert_already_in_hash()) {
- continue;
- }
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "X509_STORE_add_cert(\"%s\") failed", cert->data);
- sk_X509_pop_free(chain, X509_free);
- return NGX_ERROR;
- }
- }
- sk_X509_pop_free(chain, X509_free);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_crl(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *crl)
- {
- int n, i;
- char *err;
- X509_CRL *x509;
- X509_STORE *store;
- STACK_OF(X509_CRL) *chain;
- if (crl->len == 0) {
- return NGX_OK;
- }
- store = SSL_CTX_get_cert_store(ssl->ctx);
- if (store == NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_get_cert_store() failed");
- return NGX_ERROR;
- }
- chain = ngx_ssl_cache_fetch(cf, NGX_SSL_CACHE_CRL, &err, crl, NULL);
- if (chain == NULL) {
- if (err != NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "cannot load CRL \"%s\": %s", crl->data, err);
- }
- return NGX_ERROR;
- }
- n = sk_X509_CRL_num(chain);
- for (i = 0; i < n; i++) {
- x509 = sk_X509_CRL_value(chain, i);
- if (X509_STORE_add_crl(store, x509) != 1) {
- if (ngx_ssl_cert_already_in_hash()) {
- continue;
- }
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "X509_STORE_add_crl(\"%s\") failed", crl->data);
- sk_X509_CRL_pop_free(chain, X509_CRL_free);
- return NGX_ERROR;
- }
- }
- sk_X509_CRL_pop_free(chain, X509_CRL_free);
- X509_STORE_set_flags(store,
- X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
- return NGX_OK;
- }
- static ngx_inline ngx_int_t
- ngx_ssl_cert_already_in_hash(void)
- {
- #if !(OPENSSL_VERSION_NUMBER >= 0x1010009fL \
- || LIBRESSL_VERSION_NUMBER >= 0x3050000fL)
- u_long error;
-
- error = ERR_peek_last_error();
- if (ERR_GET_LIB(error) == ERR_LIB_X509
- && ERR_GET_REASON(error) == X509_R_CERT_ALREADY_IN_HASH_TABLE)
- {
- ERR_clear_error();
- return 1;
- }
- #endif
- return 0;
- }
- static int
- ngx_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store)
- {
- #if (NGX_DEBUG)
- char *subject, *issuer;
- int err, depth;
- X509 *cert;
- X509_NAME *sname, *iname;
- ngx_connection_t *c;
- ngx_ssl_conn_t *ssl_conn;
- ssl_conn = X509_STORE_CTX_get_ex_data(x509_store,
- SSL_get_ex_data_X509_STORE_CTX_idx());
- c = ngx_ssl_get_connection(ssl_conn);
- if (!(c->log->log_level & NGX_LOG_DEBUG_EVENT)) {
- return 1;
- }
- cert = X509_STORE_CTX_get_current_cert(x509_store);
- err = X509_STORE_CTX_get_error(x509_store);
- depth = X509_STORE_CTX_get_error_depth(x509_store);
- sname = X509_get_subject_name(cert);
- if (sname) {
- subject = X509_NAME_oneline(sname, NULL, 0);
- if (subject == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0,
- "X509_NAME_oneline() failed");
- }
- } else {
- subject = NULL;
- }
- iname = X509_get_issuer_name(cert);
- if (iname) {
- issuer = X509_NAME_oneline(iname, NULL, 0);
- if (issuer == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0,
- "X509_NAME_oneline() failed");
- }
- } else {
- issuer = NULL;
- }
- ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "verify:%d, error:%d, depth:%d, "
- "subject:\"%s\", issuer:\"%s\"",
- ok, err, depth,
- subject ? subject : "(none)",
- issuer ? issuer : "(none)");
- if (subject) {
- OPENSSL_free(subject);
- }
- if (issuer) {
- OPENSSL_free(issuer);
- }
- #endif
- return 1;
- }
- static void
- ngx_ssl_info_callback(const ngx_ssl_conn_t *ssl_conn, int where, int ret)
- {
- BIO *rbio, *wbio;
- ngx_connection_t *c;
- #if (!defined SSL_OP_NO_RENEGOTIATION \
- && !defined SSL_OP_NO_CLIENT_RENEGOTIATION)
- if ((where & SSL_CB_HANDSHAKE_START)
- && SSL_is_server((ngx_ssl_conn_t *) ssl_conn))
- {
- c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn);
- if (c->ssl->handshaked) {
- c->ssl->renegotiation = 1;
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL renegotiation");
- }
- }
- #endif
- #ifdef TLS1_3_VERSION
- if ((where & SSL_CB_ACCEPT_LOOP) == SSL_CB_ACCEPT_LOOP
- && SSL_version(ssl_conn) == TLS1_3_VERSION)
- {
- time_t now, time, timeout, conf_timeout;
- SSL_SESSION *sess;
-
- c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn);
- sess = SSL_get0_session(ssl_conn);
- if (!c->ssl->session_timeout_set && sess) {
- c->ssl->session_timeout_set = 1;
- now = ngx_time();
- time = SSL_SESSION_get_time(sess);
- timeout = SSL_SESSION_get_timeout(sess);
- conf_timeout = SSL_CTX_get_timeout(c->ssl->session_ctx);
- timeout = ngx_min(timeout, conf_timeout);
- if (now - time >= timeout) {
- SSL_SESSION_set1_id_context(sess, (unsigned char *) "", 0);
- } else {
- SSL_SESSION_set_time(sess, now);
- SSL_SESSION_set_timeout(sess, timeout - (now - time));
- }
- }
- }
- #endif
- if ((where & SSL_CB_ACCEPT_LOOP) == SSL_CB_ACCEPT_LOOP) {
- c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn);
- if (!c->ssl->handshake_buffer_set) {
-
- rbio = SSL_get_rbio(ssl_conn);
- wbio = SSL_get_wbio(ssl_conn);
- if (rbio != wbio) {
- (void) BIO_set_write_buffer_size(wbio, NGX_SSL_BUFSIZE);
- c->ssl->handshake_buffer_set = 1;
- }
- }
- }
- }
- static int
- ngx_ssl_cmp_x509_name(const X509_NAME *const *a, const X509_NAME *const *b)
- {
- return (X509_NAME_cmp(*a, *b));
- }
- ngx_array_t *
- ngx_ssl_read_password_file(ngx_conf_t *cf, ngx_str_t *file)
- {
- u_char *p, *last, *end;
- size_t len;
- ssize_t n;
- ngx_fd_t fd;
- ngx_str_t *pwd;
- ngx_array_t *passwords;
- ngx_pool_cleanup_t *cln;
- u_char buf[NGX_SSL_PASSWORD_BUFFER_SIZE];
- if (ngx_conf_full_name(cf->cycle, file, 1) != NGX_OK) {
- return NULL;
- }
- passwords = ngx_array_create(cf->temp_pool, 4, sizeof(ngx_str_t));
- if (passwords == NULL) {
- return NULL;
- }
- cln = ngx_pool_cleanup_add(cf->temp_pool, 0);
- if (cln == NULL) {
- return NULL;
- }
- cln->handler = ngx_ssl_passwords_cleanup;
- cln->data = passwords;
- fd = ngx_open_file(file->data, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0);
- if (fd == NGX_INVALID_FILE) {
- ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
- ngx_open_file_n " \"%s\" failed", file->data);
- return NULL;
- }
- len = 0;
- last = buf;
- do {
- n = ngx_read_fd(fd, last, NGX_SSL_PASSWORD_BUFFER_SIZE - len);
- if (n == -1) {
- ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
- ngx_read_fd_n " \"%s\" failed", file->data);
- passwords = NULL;
- goto cleanup;
- }
- end = last + n;
- if (len && n == 0) {
- *end++ = LF;
- }
- p = buf;
- for ( ;; ) {
- last = ngx_strlchr(last, end, LF);
- if (last == NULL) {
- break;
- }
- len = last++ - p;
- if (len && p[len - 1] == CR) {
- len--;
- }
- if (len) {
- pwd = ngx_array_push(passwords);
- if (pwd == NULL) {
- passwords = NULL;
- goto cleanup;
- }
- pwd->len = len;
- pwd->data = ngx_pnalloc(cf->temp_pool, len);
- if (pwd->data == NULL) {
- passwords->nelts--;
- passwords = NULL;
- goto cleanup;
- }
- ngx_memcpy(pwd->data, p, len);
- }
- p = last;
- }
- len = end - p;
- if (len == NGX_SSL_PASSWORD_BUFFER_SIZE) {
- ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
- "too long line in \"%s\"", file->data);
- passwords = NULL;
- goto cleanup;
- }
- ngx_memmove(buf, p, len);
- last = buf + len;
- } while (n != 0);
- if (passwords->nelts == 0) {
- pwd = ngx_array_push(passwords);
- if (pwd == NULL) {
- passwords = NULL;
- goto cleanup;
- }
- ngx_memzero(pwd, sizeof(ngx_str_t));
- }
- cleanup:
- if (ngx_close_file(fd) == NGX_FILE_ERROR) {
- ngx_conf_log_error(NGX_LOG_ALERT, cf, ngx_errno,
- ngx_close_file_n " \"%s\" failed", file->data);
- }
- ngx_explicit_memzero(buf, NGX_SSL_PASSWORD_BUFFER_SIZE);
- return passwords;
- }
- ngx_array_t *
- ngx_ssl_preserve_passwords(ngx_conf_t *cf, ngx_array_t *passwords)
- {
- ngx_str_t *opwd, *pwd;
- ngx_uint_t i;
- ngx_array_t *pwds;
- ngx_pool_cleanup_t *cln;
- static ngx_array_t empty_passwords;
- if (passwords == NULL) {
-
- return &empty_passwords;
- }
-
- pwds = ngx_array_create(cf->pool, passwords->nelts, sizeof(ngx_str_t));
- if (pwds == NULL) {
- return NULL;
- }
- cln = ngx_pool_cleanup_add(cf->pool, 0);
- if (cln == NULL) {
- return NULL;
- }
- cln->handler = ngx_ssl_passwords_cleanup;
- cln->data = pwds;
- opwd = passwords->elts;
- for (i = 0; i < passwords->nelts; i++) {
- pwd = ngx_array_push(pwds);
- if (pwd == NULL) {
- return NULL;
- }
- pwd->len = opwd[i].len;
- pwd->data = ngx_pnalloc(cf->pool, pwd->len);
- if (pwd->data == NULL) {
- pwds->nelts--;
- return NULL;
- }
- ngx_memcpy(pwd->data, opwd[i].data, opwd[i].len);
- }
- return pwds;
- }
- static void
- ngx_ssl_passwords_cleanup(void *data)
- {
- ngx_array_t *passwords = data;
- ngx_str_t *pwd;
- ngx_uint_t i;
- pwd = passwords->elts;
- for (i = 0; i < passwords->nelts; i++) {
- ngx_explicit_memzero(pwd[i].data, pwd[i].len);
- }
- }
- ngx_int_t
- ngx_ssl_dhparam(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *file)
- {
- BIO *bio;
- if (file->len == 0) {
- return NGX_OK;
- }
- if (ngx_conf_full_name(cf->cycle, file, 1) != NGX_OK) {
- return NGX_ERROR;
- }
- bio = BIO_new_file((char *) file->data, "r");
- if (bio == NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "BIO_new_file(\"%s\") failed", file->data);
- return NGX_ERROR;
- }
- #ifdef SSL_CTX_set_tmp_dh
- {
- DH *dh;
- dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
- if (dh == NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "PEM_read_bio_DHparams(\"%s\") failed", file->data);
- BIO_free(bio);
- return NGX_ERROR;
- }
- if (SSL_CTX_set_tmp_dh(ssl->ctx, dh) != 1) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_set_tmp_dh(\"%s\") failed", file->data);
- DH_free(dh);
- BIO_free(bio);
- return NGX_ERROR;
- }
- DH_free(dh);
- }
- #else
- {
- EVP_PKEY *dh;
-
- dh = PEM_read_bio_Parameters(bio, NULL);
- if (dh == NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "PEM_read_bio_Parameters(\"%s\") failed", file->data);
- BIO_free(bio);
- return NGX_ERROR;
- }
- if (SSL_CTX_set0_tmp_dh_pkey(ssl->ctx, dh) != 1) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_set0_tmp_dh_pkey(\"%s\") failed", file->data);
- #if (OPENSSL_VERSION_NUMBER >= 0x3000001fL)
- EVP_PKEY_free(dh);
- #endif
- BIO_free(bio);
- return NGX_ERROR;
- }
- }
- #endif
- BIO_free(bio);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_ecdh_curve(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *name)
- {
- #ifndef OPENSSL_NO_ECDH
-
- #if (defined SSL_CTX_set1_curves_list || defined SSL_CTRL_SET_CURVES_LIST)
-
- SSL_CTX_set_options(ssl->ctx, SSL_OP_SINGLE_ECDH_USE);
- #ifdef SSL_CTRL_SET_ECDH_AUTO
-
- (void) SSL_CTX_set_ecdh_auto(ssl->ctx, 1);
- #endif
- if (ngx_strcmp(name->data, "auto") == 0) {
- return NGX_OK;
- }
- if (SSL_CTX_set1_curves_list(ssl->ctx, (char *) name->data) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_set1_curves_list(\"%s\") failed", name->data);
- return NGX_ERROR;
- }
- #else
- int nid;
- char *curve;
- EC_KEY *ecdh;
- if (ngx_strcmp(name->data, "auto") == 0) {
- curve = "prime256v1";
- } else {
- curve = (char *) name->data;
- }
- nid = OBJ_sn2nid(curve);
- if (nid == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "OBJ_sn2nid(\"%s\") failed: unknown curve", curve);
- return NGX_ERROR;
- }
- ecdh = EC_KEY_new_by_curve_name(nid);
- if (ecdh == NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "EC_KEY_new_by_curve_name(\"%s\") failed", curve);
- return NGX_ERROR;
- }
- SSL_CTX_set_options(ssl->ctx, SSL_OP_SINGLE_ECDH_USE);
- SSL_CTX_set_tmp_ecdh(ssl->ctx, ecdh);
- EC_KEY_free(ecdh);
- #endif
- #endif
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_early_data(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_uint_t enable)
- {
- if (!enable) {
- return NGX_OK;
- }
- #ifdef SSL_ERROR_EARLY_DATA_REJECTED
-
- SSL_CTX_set_early_data_enabled(ssl->ctx, 1);
- #elif defined SSL_READ_EARLY_DATA_SUCCESS
-
- SSL_CTX_set_max_early_data(ssl->ctx, NGX_SSL_BUFSIZE);
- #else
- ngx_log_error(NGX_LOG_WARN, ssl->log, 0,
- "\"ssl_early_data\" is not supported on this platform, "
- "ignored");
- #endif
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_conf_commands(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_array_t *commands)
- {
- if (commands == NULL) {
- return NGX_OK;
- }
- #ifdef SSL_CONF_FLAG_FILE
- {
- int type;
- u_char *key, *value;
- ngx_uint_t i;
- ngx_keyval_t *cmd;
- SSL_CONF_CTX *cctx;
- cctx = SSL_CONF_CTX_new();
- if (cctx == NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CONF_CTX_new() failed");
- return NGX_ERROR;
- }
- SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_FILE);
- SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
- SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
- SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CERTIFICATE);
- SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SHOW_ERRORS);
- SSL_CONF_CTX_set_ssl_ctx(cctx, ssl->ctx);
- cmd = commands->elts;
- for (i = 0; i < commands->nelts; i++) {
- key = cmd[i].key.data;
- type = SSL_CONF_cmd_value_type(cctx, (char *) key);
- if (type == SSL_CONF_TYPE_FILE || type == SSL_CONF_TYPE_DIR) {
- if (ngx_conf_full_name(cf->cycle, &cmd[i].value, 1) != NGX_OK) {
- SSL_CONF_CTX_free(cctx);
- return NGX_ERROR;
- }
- }
- value = cmd[i].value.data;
- if (SSL_CONF_cmd(cctx, (char *) key, (char *) value) <= 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CONF_cmd(\"%s\", \"%s\") failed", key, value);
- SSL_CONF_CTX_free(cctx);
- return NGX_ERROR;
- }
- }
- if (SSL_CONF_CTX_finish(cctx) != 1) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CONF_finish() failed");
- SSL_CONF_CTX_free(cctx);
- return NGX_ERROR;
- }
- SSL_CONF_CTX_free(cctx);
- return NGX_OK;
- }
- #else
- ngx_log_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CONF_cmd() is not available on this platform");
- return NGX_ERROR;
- #endif
- }
- ngx_int_t
- ngx_ssl_client_session_cache(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_uint_t enable)
- {
- if (!enable) {
- return NGX_OK;
- }
- SSL_CTX_set_session_cache_mode(ssl->ctx,
- SSL_SESS_CACHE_CLIENT
- |SSL_SESS_CACHE_NO_INTERNAL);
- SSL_CTX_sess_set_new_cb(ssl->ctx, ngx_ssl_new_client_session);
- return NGX_OK;
- }
- static int
- ngx_ssl_new_client_session(ngx_ssl_conn_t *ssl_conn, ngx_ssl_session_t *sess)
- {
- ngx_connection_t *c;
- c = ngx_ssl_get_connection(ssl_conn);
- if (c->ssl->save_session) {
- c->ssl->session = sess;
- c->ssl->save_session(c);
- c->ssl->session = NULL;
- }
- return 0;
- }
- ngx_int_t
- ngx_ssl_create_connection(ngx_ssl_t *ssl, ngx_connection_t *c, ngx_uint_t flags)
- {
- ngx_ssl_connection_t *sc;
- sc = ngx_pcalloc(c->pool, sizeof(ngx_ssl_connection_t));
- if (sc == NULL) {
- return NGX_ERROR;
- }
- sc->buffer = ((flags & NGX_SSL_BUFFER) != 0);
- sc->buffer_size = ssl->buffer_size;
- sc->session_ctx = ssl->ctx;
- #ifdef SSL_READ_EARLY_DATA_SUCCESS
- if (SSL_CTX_get_max_early_data(ssl->ctx)) {
- sc->try_early_data = 1;
- }
- #endif
- sc->connection = SSL_new(ssl->ctx);
- if (sc->connection == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_new() failed");
- return NGX_ERROR;
- }
- if (SSL_set_fd(sc->connection, c->fd) == 0) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_fd() failed");
- return NGX_ERROR;
- }
- if (flags & NGX_SSL_CLIENT) {
- SSL_set_connect_state(sc->connection);
- } else {
- SSL_set_accept_state(sc->connection);
- #ifdef SSL_OP_NO_RENEGOTIATION
- SSL_set_options(sc->connection, SSL_OP_NO_RENEGOTIATION);
- #endif
- }
- if (SSL_set_ex_data(sc->connection, ngx_ssl_connection_index, c) == 0) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_ex_data() failed");
- return NGX_ERROR;
- }
- c->ssl = sc;
- return NGX_OK;
- }
- ngx_ssl_session_t *
- ngx_ssl_get_session(ngx_connection_t *c)
- {
- #ifdef TLS1_3_VERSION
- if (c->ssl->session) {
- SSL_SESSION_up_ref(c->ssl->session);
- return c->ssl->session;
- }
- #endif
- return SSL_get1_session(c->ssl->connection);
- }
- ngx_ssl_session_t *
- ngx_ssl_get0_session(ngx_connection_t *c)
- {
- if (c->ssl->session) {
- return c->ssl->session;
- }
- return SSL_get0_session(c->ssl->connection);
- }
- ngx_int_t
- ngx_ssl_set_session(ngx_connection_t *c, ngx_ssl_session_t *session)
- {
- if (session) {
- if (SSL_set_session(c->ssl->connection, session) == 0) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_session() failed");
- return NGX_ERROR;
- }
- }
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_handshake(ngx_connection_t *c)
- {
- int n, sslerr;
- ngx_err_t err;
- ngx_int_t rc;
- #ifdef SSL_READ_EARLY_DATA_SUCCESS
- if (c->ssl->try_early_data) {
- return ngx_ssl_try_early_data(c);
- }
- #endif
- if (c->ssl->in_ocsp) {
- return ngx_ssl_ocsp_validate(c);
- }
- ngx_ssl_clear_error(c->log);
- n = SSL_do_handshake(c->ssl->connection);
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_do_handshake: %d", n);
- if (n == 1) {
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- #if (NGX_DEBUG)
- ngx_ssl_handshake_log(c);
- #endif
- c->recv = ngx_ssl_recv;
- c->send = ngx_ssl_write;
- c->recv_chain = ngx_ssl_recv_chain;
- c->send_chain = ngx_ssl_send_chain;
- c->read->ready = 1;
- c->write->ready = 1;
- #if (!defined SSL_OP_NO_RENEGOTIATION \
- && !defined SSL_OP_NO_CLIENT_RENEGOTIATION \
- && defined SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS \
- && OPENSSL_VERSION_NUMBER < 0x10100000L)
-
- if (c->ssl->connection->s3 && SSL_is_server(c->ssl->connection)) {
- c->ssl->connection->s3->flags |= SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS;
- }
- #endif
- #if (defined BIO_get_ktls_send && !NGX_WIN32)
- if (BIO_get_ktls_send(SSL_get_wbio(c->ssl->connection)) == 1) {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "BIO_get_ktls_send(): 1");
- c->ssl->sendfile = 1;
- }
- #endif
- rc = ngx_ssl_ocsp_validate(c);
- if (rc == NGX_ERROR) {
- return NGX_ERROR;
- }
- if (rc == NGX_AGAIN) {
- c->read->handler = ngx_ssl_handshake_handler;
- c->write->handler = ngx_ssl_handshake_handler;
- return NGX_AGAIN;
- }
- c->ssl->handshaked = 1;
- return NGX_OK;
- }
- sslerr = SSL_get_error(c->ssl->connection, n);
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
- if (sslerr == SSL_ERROR_WANT_READ) {
- c->read->ready = 0;
- c->read->handler = ngx_ssl_handshake_handler;
- c->write->handler = ngx_ssl_handshake_handler;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- return NGX_AGAIN;
- }
- if (sslerr == SSL_ERROR_WANT_WRITE) {
- c->write->ready = 0;
- c->read->handler = ngx_ssl_handshake_handler;
- c->write->handler = ngx_ssl_handshake_handler;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- return NGX_AGAIN;
- }
- err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
- c->ssl->no_wait_shutdown = 1;
- c->ssl->no_send_shutdown = 1;
- c->read->eof = 1;
- if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
- ngx_connection_error(c, err,
- "peer closed connection in SSL handshake");
- return NGX_ERROR;
- }
- if (c->ssl->handshake_rejected) {
- ngx_connection_error(c, err, "handshake rejected");
- ERR_clear_error();
- return NGX_ERROR;
- }
- c->read->error = 1;
- ngx_ssl_connection_error(c, sslerr, err, "SSL_do_handshake() failed");
- return NGX_ERROR;
- }
- #ifdef SSL_READ_EARLY_DATA_SUCCESS
- static ngx_int_t
- ngx_ssl_try_early_data(ngx_connection_t *c)
- {
- int n, sslerr;
- u_char buf;
- size_t readbytes;
- ngx_err_t err;
- ngx_int_t rc;
- ngx_ssl_clear_error(c->log);
- readbytes = 0;
- n = SSL_read_early_data(c->ssl->connection, &buf, 1, &readbytes);
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL_read_early_data: %d, %uz", n, readbytes);
- if (n == SSL_READ_EARLY_DATA_FINISH) {
- c->ssl->try_early_data = 0;
- return ngx_ssl_handshake(c);
- }
- if (n == SSL_READ_EARLY_DATA_SUCCESS) {
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- #if (NGX_DEBUG)
- ngx_ssl_handshake_log(c);
- #endif
- c->ssl->try_early_data = 0;
- c->ssl->early_buf = buf;
- c->ssl->early_preread = 1;
- c->ssl->in_early = 1;
- c->recv = ngx_ssl_recv;
- c->send = ngx_ssl_write;
- c->recv_chain = ngx_ssl_recv_chain;
- c->send_chain = ngx_ssl_send_chain;
- c->read->ready = 1;
- c->write->ready = 1;
- #if (defined BIO_get_ktls_send && !NGX_WIN32)
- if (BIO_get_ktls_send(SSL_get_wbio(c->ssl->connection)) == 1) {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "BIO_get_ktls_send(): 1");
- c->ssl->sendfile = 1;
- }
- #endif
- rc = ngx_ssl_ocsp_validate(c);
- if (rc == NGX_ERROR) {
- return NGX_ERROR;
- }
- if (rc == NGX_AGAIN) {
- c->read->handler = ngx_ssl_handshake_handler;
- c->write->handler = ngx_ssl_handshake_handler;
- return NGX_AGAIN;
- }
- c->ssl->handshaked = 1;
- return NGX_OK;
- }
-
- sslerr = SSL_get_error(c->ssl->connection, n);
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
- if (sslerr == SSL_ERROR_WANT_READ) {
- c->read->ready = 0;
- c->read->handler = ngx_ssl_handshake_handler;
- c->write->handler = ngx_ssl_handshake_handler;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- return NGX_AGAIN;
- }
- if (sslerr == SSL_ERROR_WANT_WRITE) {
- c->write->ready = 0;
- c->read->handler = ngx_ssl_handshake_handler;
- c->write->handler = ngx_ssl_handshake_handler;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- return NGX_AGAIN;
- }
- err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
- c->ssl->no_wait_shutdown = 1;
- c->ssl->no_send_shutdown = 1;
- c->read->eof = 1;
- if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
- ngx_connection_error(c, err,
- "peer closed connection in SSL handshake");
- return NGX_ERROR;
- }
- c->read->error = 1;
- ngx_ssl_connection_error(c, sslerr, err, "SSL_read_early_data() failed");
- return NGX_ERROR;
- }
- #endif
- #if (NGX_DEBUG)
- void
- ngx_ssl_handshake_log(ngx_connection_t *c)
- {
- char buf[129], *s, *d;
- #if OPENSSL_VERSION_NUMBER >= 0x10000000L
- const
- #endif
- SSL_CIPHER *cipher;
- if (!(c->log->log_level & NGX_LOG_DEBUG_EVENT)) {
- return;
- }
- cipher = SSL_get_current_cipher(c->ssl->connection);
- if (cipher) {
- SSL_CIPHER_description(cipher, &buf[1], 128);
- for (s = &buf[1], d = buf; *s; s++) {
- if (*s == ' ' && *d == ' ') {
- continue;
- }
- if (*s == LF || *s == CR) {
- continue;
- }
- *++d = *s;
- }
- if (*d != ' ') {
- d++;
- }
- *d = '\0';
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL: %s, cipher: \"%s\"",
- SSL_get_version(c->ssl->connection), &buf[1]);
- if (SSL_session_reused(c->ssl->connection)) {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL reused session");
- }
- } else {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL no shared ciphers");
- }
- }
- #endif
- static void
- ngx_ssl_handshake_handler(ngx_event_t *ev)
- {
- ngx_connection_t *c;
- c = ev->data;
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL handshake handler: %d", ev->write);
- if (ev->timedout) {
- c->ssl->handler(c);
- return;
- }
- if (ngx_ssl_handshake(c) == NGX_AGAIN) {
- return;
- }
- c->ssl->handler(c);
- }
- ssize_t
- ngx_ssl_recv_chain(ngx_connection_t *c, ngx_chain_t *cl, off_t limit)
- {
- u_char *last;
- ssize_t n, bytes, size;
- ngx_buf_t *b;
- bytes = 0;
- b = cl->buf;
- last = b->last;
- for ( ;; ) {
- size = b->end - last;
- if (limit) {
- if (bytes >= limit) {
- return bytes;
- }
- if (bytes + size > limit) {
- size = (ssize_t) (limit - bytes);
- }
- }
- n = ngx_ssl_recv(c, last, size);
- if (n > 0) {
- last += n;
- bytes += n;
- if (!c->read->ready) {
- return bytes;
- }
- if (last == b->end) {
- cl = cl->next;
- if (cl == NULL) {
- return bytes;
- }
- b = cl->buf;
- last = b->last;
- }
- continue;
- }
- if (bytes) {
- if (n == 0 || n == NGX_ERROR) {
- c->read->ready = 1;
- }
- return bytes;
- }
- return n;
- }
- }
- ssize_t
- ngx_ssl_recv(ngx_connection_t *c, u_char *buf, size_t size)
- {
- int n, bytes;
- #ifdef SSL_READ_EARLY_DATA_SUCCESS
- if (c->ssl->in_early) {
- return ngx_ssl_recv_early(c, buf, size);
- }
- #endif
- if (c->ssl->last == NGX_ERROR) {
- c->read->ready = 0;
- c->read->error = 1;
- return NGX_ERROR;
- }
- if (c->ssl->last == NGX_DONE) {
- c->read->ready = 0;
- c->read->eof = 1;
- return 0;
- }
- bytes = 0;
- ngx_ssl_clear_error(c->log);
-
- for ( ;; ) {
- n = SSL_read(c->ssl->connection, buf, size);
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_read: %d", n);
- if (n > 0) {
- bytes += n;
- }
- c->ssl->last = ngx_ssl_handle_recv(c, n);
- if (c->ssl->last == NGX_OK) {
- size -= n;
- if (size == 0) {
- c->read->ready = 1;
- if (c->read->available >= 0) {
- c->read->available -= bytes;
-
- if (c->read->available < 0) {
- c->read->available = 0;
- c->read->ready = 0;
- if (c->read->posted) {
- ngx_delete_posted_event(c->read);
- }
- ngx_post_event(c->read, &ngx_posted_next_events);
- }
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL_read: avail:%d", c->read->available);
- } else {
- #if (NGX_HAVE_FIONREAD)
- if (ngx_socket_nread(c->fd, &c->read->available) == -1) {
- c->read->ready = 0;
- c->read->error = 1;
- ngx_connection_error(c, ngx_socket_errno,
- ngx_socket_nread_n " failed");
- return NGX_ERROR;
- }
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL_read: avail:%d", c->read->available);
- #endif
- }
- return bytes;
- }
- buf += n;
- continue;
- }
- if (bytes) {
- if (c->ssl->last != NGX_AGAIN) {
- c->read->ready = 1;
- }
- return bytes;
- }
- switch (c->ssl->last) {
- case NGX_DONE:
- c->read->ready = 0;
- c->read->eof = 1;
- return 0;
- case NGX_ERROR:
- c->read->ready = 0;
- c->read->error = 1;
-
- case NGX_AGAIN:
- return c->ssl->last;
- }
- }
- }
- #ifdef SSL_READ_EARLY_DATA_SUCCESS
- static ssize_t
- ngx_ssl_recv_early(ngx_connection_t *c, u_char *buf, size_t size)
- {
- int n, bytes;
- size_t readbytes;
- if (c->ssl->last == NGX_ERROR) {
- c->read->ready = 0;
- c->read->error = 1;
- return NGX_ERROR;
- }
- if (c->ssl->last == NGX_DONE) {
- c->read->ready = 0;
- c->read->eof = 1;
- return 0;
- }
- bytes = 0;
- ngx_ssl_clear_error(c->log);
- if (c->ssl->early_preread) {
- if (size == 0) {
- c->read->ready = 0;
- c->read->eof = 1;
- return 0;
- }
- *buf = c->ssl->early_buf;
- c->ssl->early_preread = 0;
- bytes = 1;
- size -= 1;
- buf += 1;
- }
- if (c->ssl->write_blocked) {
- return NGX_AGAIN;
- }
-
- for ( ;; ) {
- readbytes = 0;
- n = SSL_read_early_data(c->ssl->connection, buf, size, &readbytes);
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL_read_early_data: %d, %uz", n, readbytes);
- if (n == SSL_READ_EARLY_DATA_SUCCESS) {
- c->ssl->last = ngx_ssl_handle_recv(c, 1);
- bytes += readbytes;
- size -= readbytes;
- if (size == 0) {
- c->read->ready = 1;
- return bytes;
- }
- buf += readbytes;
- continue;
- }
- if (n == SSL_READ_EARLY_DATA_FINISH) {
- c->ssl->last = ngx_ssl_handle_recv(c, 1);
- c->ssl->in_early = 0;
- if (bytes) {
- c->read->ready = 1;
- return bytes;
- }
- return ngx_ssl_recv(c, buf, size);
- }
-
- c->ssl->last = ngx_ssl_handle_recv(c, 0);
- if (bytes) {
- if (c->ssl->last != NGX_AGAIN) {
- c->read->ready = 1;
- }
- return bytes;
- }
- switch (c->ssl->last) {
- case NGX_DONE:
- c->read->ready = 0;
- c->read->eof = 1;
- return 0;
- case NGX_ERROR:
- c->read->ready = 0;
- c->read->error = 1;
-
- case NGX_AGAIN:
- return c->ssl->last;
- }
- }
- }
- #endif
- static ngx_int_t
- ngx_ssl_handle_recv(ngx_connection_t *c, int n)
- {
- int sslerr;
- ngx_err_t err;
- #if (!defined SSL_OP_NO_RENEGOTIATION \
- && !defined SSL_OP_NO_CLIENT_RENEGOTIATION)
- if (c->ssl->renegotiation) {
-
- ngx_log_error(NGX_LOG_NOTICE, c->log, 0, "SSL renegotiation disabled");
- while (ERR_peek_error()) {
- ngx_ssl_error(NGX_LOG_DEBUG, c->log, 0,
- "ignoring stale global SSL error");
- }
- ERR_clear_error();
- c->ssl->no_wait_shutdown = 1;
- c->ssl->no_send_shutdown = 1;
- return NGX_ERROR;
- }
- #endif
- if (n > 0) {
- if (c->ssl->saved_write_handler) {
- c->write->handler = c->ssl->saved_write_handler;
- c->ssl->saved_write_handler = NULL;
- c->write->ready = 1;
- if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- ngx_post_event(c->write, &ngx_posted_events);
- }
- return NGX_OK;
- }
- sslerr = SSL_get_error(c->ssl->connection, n);
- err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
- if (sslerr == SSL_ERROR_WANT_READ) {
- if (c->ssl->saved_write_handler) {
- c->write->handler = c->ssl->saved_write_handler;
- c->ssl->saved_write_handler = NULL;
- c->write->ready = 1;
- if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- ngx_post_event(c->write, &ngx_posted_events);
- }
- c->read->ready = 0;
- return NGX_AGAIN;
- }
- if (sslerr == SSL_ERROR_WANT_WRITE) {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL_read: want write");
- c->write->ready = 0;
- if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
- return NGX_ERROR;
- }
-
- if (c->ssl->saved_write_handler == NULL) {
- c->ssl->saved_write_handler = c->write->handler;
- c->write->handler = ngx_ssl_write_handler;
- }
- return NGX_AGAIN;
- }
- c->ssl->no_wait_shutdown = 1;
- c->ssl->no_send_shutdown = 1;
- if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "peer shutdown SSL cleanly");
- return NGX_DONE;
- }
- ngx_ssl_connection_error(c, sslerr, err, "SSL_read() failed");
- return NGX_ERROR;
- }
- static void
- ngx_ssl_write_handler(ngx_event_t *wev)
- {
- ngx_connection_t *c;
- c = wev->data;
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL write handler");
- c->read->handler(c->read);
- }
- ngx_chain_t *
- ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
- {
- int n;
- ngx_uint_t flush;
- ssize_t send, size, file_size;
- ngx_buf_t *buf;
- ngx_chain_t *cl;
- if (!c->ssl->buffer) {
- while (in) {
- if (ngx_buf_special(in->buf)) {
- in = in->next;
- continue;
- }
- n = ngx_ssl_write(c, in->buf->pos, in->buf->last - in->buf->pos);
- if (n == NGX_ERROR) {
- return NGX_CHAIN_ERROR;
- }
- if (n == NGX_AGAIN) {
- return in;
- }
- in->buf->pos += n;
- if (in->buf->pos == in->buf->last) {
- in = in->next;
- }
- }
- return in;
- }
-
- if (limit == 0 || limit > (off_t) (NGX_MAX_INT32_VALUE - ngx_pagesize)) {
- limit = NGX_MAX_INT32_VALUE - ngx_pagesize;
- }
- buf = c->ssl->buf;
- if (buf == NULL) {
- buf = ngx_create_temp_buf(c->pool, c->ssl->buffer_size);
- if (buf == NULL) {
- return NGX_CHAIN_ERROR;
- }
- c->ssl->buf = buf;
- }
- if (buf->start == NULL) {
- buf->start = ngx_palloc(c->pool, c->ssl->buffer_size);
- if (buf->start == NULL) {
- return NGX_CHAIN_ERROR;
- }
- buf->pos = buf->start;
- buf->last = buf->start;
- buf->end = buf->start + c->ssl->buffer_size;
- }
- send = buf->last - buf->pos;
- flush = (in == NULL) ? 1 : buf->flush;
- for ( ;; ) {
- while (in && buf->last < buf->end && send < limit) {
- if (in->buf->last_buf || in->buf->flush) {
- flush = 1;
- }
- if (ngx_buf_special(in->buf)) {
- in = in->next;
- continue;
- }
- if (in->buf->in_file && c->ssl->sendfile) {
- flush = 1;
- break;
- }
- size = in->buf->last - in->buf->pos;
- if (size > buf->end - buf->last) {
- size = buf->end - buf->last;
- }
- if (send + size > limit) {
- size = (ssize_t) (limit - send);
- }
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL buf copy: %z", size);
- ngx_memcpy(buf->last, in->buf->pos, size);
- buf->last += size;
- in->buf->pos += size;
- send += size;
- if (in->buf->pos == in->buf->last) {
- in = in->next;
- }
- }
- if (!flush && send < limit && buf->last < buf->end) {
- break;
- }
- size = buf->last - buf->pos;
- if (size == 0) {
- if (in && in->buf->in_file && send < limit) {
-
- cl = in;
- file_size = (size_t) ngx_chain_coalesce_file(&cl, limit - send);
- n = ngx_ssl_sendfile(c, in->buf, file_size);
- if (n == NGX_ERROR) {
- return NGX_CHAIN_ERROR;
- }
- if (n == NGX_AGAIN) {
- break;
- }
- in = ngx_chain_update_sent(in, n);
- send += n;
- flush = 0;
- continue;
- }
- buf->flush = 0;
- c->buffered &= ~NGX_SSL_BUFFERED;
- return in;
- }
- n = ngx_ssl_write(c, buf->pos, size);
- if (n == NGX_ERROR) {
- return NGX_CHAIN_ERROR;
- }
- if (n == NGX_AGAIN) {
- break;
- }
- buf->pos += n;
- if (n < size) {
- break;
- }
- flush = 0;
- buf->pos = buf->start;
- buf->last = buf->start;
- if (in == NULL || send >= limit) {
- break;
- }
- }
- buf->flush = flush;
- if (buf->pos < buf->last) {
- c->buffered |= NGX_SSL_BUFFERED;
- } else {
- c->buffered &= ~NGX_SSL_BUFFERED;
- }
- return in;
- }
- ssize_t
- ngx_ssl_write(ngx_connection_t *c, u_char *data, size_t size)
- {
- int n, sslerr;
- ngx_err_t err;
- #ifdef SSL_READ_EARLY_DATA_SUCCESS
- if (c->ssl->in_early) {
- return ngx_ssl_write_early(c, data, size);
- }
- #endif
- ngx_ssl_clear_error(c->log);
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL to write: %uz", size);
- n = SSL_write(c->ssl->connection, data, size);
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_write: %d", n);
- if (n > 0) {
- if (c->ssl->saved_read_handler) {
- c->read->handler = c->ssl->saved_read_handler;
- c->ssl->saved_read_handler = NULL;
- c->read->ready = 1;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- ngx_post_event(c->read, &ngx_posted_events);
- }
- c->sent += n;
- return n;
- }
- sslerr = SSL_get_error(c->ssl->connection, n);
- if (sslerr == SSL_ERROR_ZERO_RETURN) {
-
- sslerr = SSL_ERROR_SYSCALL;
- }
- err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
- if (sslerr == SSL_ERROR_WANT_WRITE) {
- if (c->ssl->saved_read_handler) {
- c->read->handler = c->ssl->saved_read_handler;
- c->ssl->saved_read_handler = NULL;
- c->read->ready = 1;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- ngx_post_event(c->read, &ngx_posted_events);
- }
- c->write->ready = 0;
- return NGX_AGAIN;
- }
- if (sslerr == SSL_ERROR_WANT_READ) {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL_write: want read");
- c->read->ready = 0;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
-
- if (c->ssl->saved_read_handler == NULL) {
- c->ssl->saved_read_handler = c->read->handler;
- c->read->handler = ngx_ssl_read_handler;
- }
- return NGX_AGAIN;
- }
- c->ssl->no_wait_shutdown = 1;
- c->ssl->no_send_shutdown = 1;
- c->write->error = 1;
- ngx_ssl_connection_error(c, sslerr, err, "SSL_write() failed");
- return NGX_ERROR;
- }
- #ifdef SSL_READ_EARLY_DATA_SUCCESS
- static ssize_t
- ngx_ssl_write_early(ngx_connection_t *c, u_char *data, size_t size)
- {
- int n, sslerr;
- size_t written;
- ngx_err_t err;
- ngx_ssl_clear_error(c->log);
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL to write: %uz", size);
- written = 0;
- n = SSL_write_early_data(c->ssl->connection, data, size, &written);
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL_write_early_data: %d, %uz", n, written);
- if (n > 0) {
- if (c->ssl->saved_read_handler) {
- c->read->handler = c->ssl->saved_read_handler;
- c->ssl->saved_read_handler = NULL;
- c->read->ready = 1;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- ngx_post_event(c->read, &ngx_posted_events);
- }
- if (c->ssl->write_blocked) {
- c->ssl->write_blocked = 0;
- ngx_post_event(c->read, &ngx_posted_events);
- }
- c->sent += written;
- return written;
- }
- sslerr = SSL_get_error(c->ssl->connection, n);
- err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
- if (sslerr == SSL_ERROR_WANT_WRITE) {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL_write_early_data: want write");
- if (c->ssl->saved_read_handler) {
- c->read->handler = c->ssl->saved_read_handler;
- c->ssl->saved_read_handler = NULL;
- c->read->ready = 1;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- ngx_post_event(c->read, &ngx_posted_events);
- }
-
- c->ssl->write_blocked = 1;
- c->write->ready = 0;
- return NGX_AGAIN;
- }
- if (sslerr == SSL_ERROR_WANT_READ) {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL_write_early_data: want read");
- c->read->ready = 0;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
-
- if (c->ssl->saved_read_handler == NULL) {
- c->ssl->saved_read_handler = c->read->handler;
- c->read->handler = ngx_ssl_read_handler;
- }
- return NGX_AGAIN;
- }
- c->ssl->no_wait_shutdown = 1;
- c->ssl->no_send_shutdown = 1;
- c->write->error = 1;
- ngx_ssl_connection_error(c, sslerr, err, "SSL_write_early_data() failed");
- return NGX_ERROR;
- }
- #endif
- static ssize_t
- ngx_ssl_sendfile(ngx_connection_t *c, ngx_buf_t *file, size_t size)
- {
- #if (defined BIO_get_ktls_send && !NGX_WIN32)
- int sslerr, flags;
- ssize_t n;
- ngx_err_t err;
- ngx_ssl_clear_error(c->log);
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL to sendfile: @%O %uz",
- file->file_pos, size);
- ngx_set_errno(0);
- #if (NGX_HAVE_SENDFILE_NODISKIO)
- flags = (c->busy_count <= 2) ? SF_NODISKIO : 0;
- if (file->file->directio) {
- flags |= SF_NOCACHE;
- }
- #else
- flags = 0;
- #endif
- n = SSL_sendfile(c->ssl->connection, file->file->fd, file->file_pos,
- size, flags);
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_sendfile: %z", n);
- if (n > 0) {
- if (c->ssl->saved_read_handler) {
- c->read->handler = c->ssl->saved_read_handler;
- c->ssl->saved_read_handler = NULL;
- c->read->ready = 1;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- ngx_post_event(c->read, &ngx_posted_events);
- }
- #if (NGX_HAVE_SENDFILE_NODISKIO)
- c->busy_count = 0;
- #endif
- c->sent += n;
- return n;
- }
- if (n == 0) {
-
- ngx_log_error(NGX_LOG_ALERT, c->log, 0,
- "SSL_sendfile() reported that \"%s\" was truncated at %O",
- file->file->name.data, file->file_pos);
- return NGX_ERROR;
- }
- sslerr = SSL_get_error(c->ssl->connection, n);
- if (sslerr == SSL_ERROR_ZERO_RETURN) {
-
- sslerr = SSL_ERROR_SYSCALL;
- }
- if (sslerr == SSL_ERROR_SSL
- && ERR_GET_REASON(ERR_peek_error()) == SSL_R_UNINITIALIZED
- && ngx_errno != 0)
- {
-
- sslerr = SSL_ERROR_SYSCALL;
- }
- err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
- if (sslerr == SSL_ERROR_WANT_WRITE) {
- if (c->ssl->saved_read_handler) {
- c->read->handler = c->ssl->saved_read_handler;
- c->ssl->saved_read_handler = NULL;
- c->read->ready = 1;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
- ngx_post_event(c->read, &ngx_posted_events);
- }
- #if (NGX_HAVE_SENDFILE_NODISKIO)
- if (ngx_errno == EBUSY) {
- c->busy_count++;
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL_sendfile() busy, count:%d", c->busy_count);
- if (c->write->posted) {
- ngx_delete_posted_event(c->write);
- }
- ngx_post_event(c->write, &ngx_posted_next_events);
- }
- #endif
- c->write->ready = 0;
- return NGX_AGAIN;
- }
- if (sslerr == SSL_ERROR_WANT_READ) {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL_sendfile: want read");
- c->read->ready = 0;
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- return NGX_ERROR;
- }
-
- if (c->ssl->saved_read_handler == NULL) {
- c->ssl->saved_read_handler = c->read->handler;
- c->read->handler = ngx_ssl_read_handler;
- }
- return NGX_AGAIN;
- }
- c->ssl->no_wait_shutdown = 1;
- c->ssl->no_send_shutdown = 1;
- c->write->error = 1;
- ngx_ssl_connection_error(c, sslerr, err, "SSL_sendfile() failed");
- #else
- ngx_log_error(NGX_LOG_ALERT, c->log, 0,
- "SSL_sendfile() not available");
- #endif
- return NGX_ERROR;
- }
- static void
- ngx_ssl_read_handler(ngx_event_t *rev)
- {
- ngx_connection_t *c;
- c = rev->data;
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL read handler");
- c->write->handler(c->write);
- }
- void
- ngx_ssl_free_buffer(ngx_connection_t *c)
- {
- if (c->ssl->buf && c->ssl->buf->start) {
- if (ngx_pfree(c->pool, c->ssl->buf->start) == NGX_OK) {
- c->ssl->buf->start = NULL;
- }
- }
- }
- ngx_int_t
- ngx_ssl_shutdown(ngx_connection_t *c)
- {
- int n, sslerr, mode;
- ngx_int_t rc;
- ngx_err_t err;
- ngx_uint_t tries;
- #if (NGX_QUIC)
- if (c->quic) {
-
- return NGX_OK;
- }
- #endif
- rc = NGX_OK;
- ngx_ssl_ocsp_cleanup(c);
- if (SSL_in_init(c->ssl->connection)) {
-
- goto done;
- }
- if (c->timedout || c->error || c->buffered) {
- mode = SSL_RECEIVED_SHUTDOWN|SSL_SENT_SHUTDOWN;
- SSL_set_quiet_shutdown(c->ssl->connection, 1);
- } else {
- mode = SSL_get_shutdown(c->ssl->connection);
- if (c->ssl->no_wait_shutdown) {
- mode |= SSL_RECEIVED_SHUTDOWN;
- }
- if (c->ssl->no_send_shutdown) {
- mode |= SSL_SENT_SHUTDOWN;
- }
- if (c->ssl->no_wait_shutdown && c->ssl->no_send_shutdown) {
- SSL_set_quiet_shutdown(c->ssl->connection, 1);
- }
- }
- SSL_set_shutdown(c->ssl->connection, mode);
- ngx_ssl_clear_error(c->log);
- tries = 2;
- for ( ;; ) {
-
- n = SSL_shutdown(c->ssl->connection);
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_shutdown: %d", n);
- if (n == 1) {
- goto done;
- }
- if (n == 0 && tries-- > 1) {
- continue;
- }
-
- sslerr = SSL_get_error(c->ssl->connection, n);
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL_get_error: %d", sslerr);
- if (sslerr == SSL_ERROR_WANT_READ || sslerr == SSL_ERROR_WANT_WRITE) {
- c->read->handler = ngx_ssl_shutdown_handler;
- c->write->handler = ngx_ssl_shutdown_handler;
- if (sslerr == SSL_ERROR_WANT_READ) {
- c->read->ready = 0;
- } else {
- c->write->ready = 0;
- }
- if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
- goto failed;
- }
- if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
- goto failed;
- }
- ngx_add_timer(c->read, 3000);
- return NGX_AGAIN;
- }
- if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
- goto done;
- }
- err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
- ngx_ssl_connection_error(c, sslerr, err, "SSL_shutdown() failed");
- break;
- }
- failed:
- rc = NGX_ERROR;
- done:
- if (c->ssl->shutdown_without_free) {
- c->ssl->shutdown_without_free = 0;
- c->recv = ngx_recv;
- return rc;
- }
- SSL_free(c->ssl->connection);
- c->ssl = NULL;
- c->recv = ngx_recv;
- return rc;
- }
- static void
- ngx_ssl_shutdown_handler(ngx_event_t *ev)
- {
- ngx_connection_t *c;
- ngx_connection_handler_pt handler;
- c = ev->data;
- handler = c->ssl->handler;
- if (ev->timedout) {
- c->timedout = 1;
- }
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "SSL shutdown handler");
- if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
- return;
- }
- handler(c);
- }
- static void
- ngx_ssl_connection_error(ngx_connection_t *c, int sslerr, ngx_err_t err,
- char *text)
- {
- int n;
- ngx_uint_t level;
- level = NGX_LOG_CRIT;
- if (sslerr == SSL_ERROR_SYSCALL) {
- if (err == NGX_ECONNRESET
- #if (NGX_WIN32)
- || err == NGX_ECONNABORTED
- #endif
- || err == NGX_EPIPE
- || err == NGX_ENOTCONN
- || err == NGX_ETIMEDOUT
- || err == NGX_ECONNREFUSED
- || err == NGX_ENETDOWN
- || err == NGX_ENETUNREACH
- || err == NGX_EHOSTDOWN
- || err == NGX_EHOSTUNREACH)
- {
- switch (c->log_error) {
- case NGX_ERROR_IGNORE_ECONNRESET:
- case NGX_ERROR_INFO:
- level = NGX_LOG_INFO;
- break;
- case NGX_ERROR_ERR:
- level = NGX_LOG_ERR;
- break;
- default:
- break;
- }
- }
- } else if (sslerr == SSL_ERROR_SSL) {
- n = ERR_GET_REASON(ERR_peek_last_error());
-
- if (n == SSL_R_BAD_CHANGE_CIPHER_SPEC
- #ifdef SSL_R_NO_SUITABLE_KEY_SHARE
- || n == SSL_R_NO_SUITABLE_KEY_SHARE
- #endif
- #ifdef SSL_R_BAD_ALERT
- || n == SSL_R_BAD_ALERT
- #endif
- #ifdef SSL_R_BAD_KEY_SHARE
- || n == SSL_R_BAD_KEY_SHARE
- #endif
- #ifdef SSL_R_BAD_EXTENSION
- || n == SSL_R_BAD_EXTENSION
- #endif
- || n == SSL_R_BAD_DIGEST_LENGTH
- #ifdef SSL_R_MISSING_SIGALGS_EXTENSION
- || n == SSL_R_MISSING_SIGALGS_EXTENSION
- #endif
- || n == SSL_R_BAD_PACKET_LENGTH
- #ifdef SSL_R_NO_SUITABLE_SIGNATURE_ALGORITHM
- || n == SSL_R_NO_SUITABLE_SIGNATURE_ALGORITHM
- #endif
- #ifdef SSL_R_BAD_KEY_UPDATE
- || n == SSL_R_BAD_KEY_UPDATE
- #endif
- || n == SSL_R_BLOCK_CIPHER_PAD_IS_WRONG
- || n == SSL_R_CCS_RECEIVED_EARLY
- #ifdef SSL_R_DECODE_ERROR
- || n == SSL_R_DECODE_ERROR
- #endif
- #ifdef SSL_R_DATA_BETWEEN_CCS_AND_FINISHED
- || n == SSL_R_DATA_BETWEEN_CCS_AND_FINISHED
- #endif
- || n == SSL_R_DATA_LENGTH_TOO_LONG
- || n == SSL_R_DIGEST_CHECK_FAILED
- || n == SSL_R_ENCRYPTED_LENGTH_TOO_LONG
- || n == SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
- || n == SSL_R_EXCESSIVE_MESSAGE_SIZE
- #ifdef SSL_R_GOT_A_FIN_BEFORE_A_CCS
- || n == SSL_R_GOT_A_FIN_BEFORE_A_CCS
- #endif
- || n == SSL_R_HTTPS_PROXY_REQUEST
- || n == SSL_R_HTTP_REQUEST
- || n == SSL_R_LENGTH_MISMATCH
- #ifdef SSL_R_LENGTH_TOO_SHORT
- || n == SSL_R_LENGTH_TOO_SHORT
- #endif
- #ifdef SSL_R_NO_RENEGOTIATION
- || n == SSL_R_NO_RENEGOTIATION
- #endif
- #ifdef SSL_R_NO_CIPHERS_PASSED
- || n == SSL_R_NO_CIPHERS_PASSED
- #endif
- || n == SSL_R_NO_CIPHERS_SPECIFIED
- #ifdef SSL_R_BAD_CIPHER
- || n == SSL_R_BAD_CIPHER
- #endif
- || n == SSL_R_NO_COMPRESSION_SPECIFIED
- || n == SSL_R_NO_SHARED_CIPHER
- #ifdef SSL_R_PACKET_LENGTH_TOO_LONG
- || n == SSL_R_PACKET_LENGTH_TOO_LONG
- #endif
- || n == SSL_R_RECORD_LENGTH_MISMATCH
- #ifdef SSL_R_TOO_MANY_WARNING_ALERTS
- || n == SSL_R_TOO_MANY_WARNING_ALERTS
- #endif
- #ifdef SSL_R_CLIENTHELLO_TLSEXT
- || n == SSL_R_CLIENTHELLO_TLSEXT
- #endif
- #ifdef SSL_R_PARSE_TLSEXT
- || n == SSL_R_PARSE_TLSEXT
- #endif
- #ifdef SSL_R_CALLBACK_FAILED
- || n == SSL_R_CALLBACK_FAILED
- #endif
- #ifdef SSL_R_TLS_RSA_ENCRYPTED_VALUE_LENGTH_IS_WRONG
- || n == SSL_R_TLS_RSA_ENCRYPTED_VALUE_LENGTH_IS_WRONG
- #endif
- #ifdef SSL_R_NO_APPLICATION_PROTOCOL
- || n == SSL_R_NO_APPLICATION_PROTOCOL
- #endif
- || n == SSL_R_UNEXPECTED_MESSAGE
- || n == SSL_R_UNEXPECTED_RECORD
- || n == SSL_R_UNKNOWN_ALERT_TYPE
- || n == SSL_R_UNKNOWN_PROTOCOL
- #ifdef SSL_R_NO_COMMON_SIGNATURE_ALGORITHMS
- || n == SSL_R_NO_COMMON_SIGNATURE_ALGORITHMS
- #endif
- #ifdef SSL_R_INVALID_COMPRESSION_LIST
- || n == SSL_R_INVALID_COMPRESSION_LIST
- #endif
- #ifdef SSL_R_MISSING_KEY_SHARE
- || n == SSL_R_MISSING_KEY_SHARE
- #endif
- || n == SSL_R_UNSUPPORTED_PROTOCOL
- #ifdef SSL_R_NO_SHARED_GROUP
- || n == SSL_R_NO_SHARED_GROUP
- #endif
- || n == SSL_R_WRONG_VERSION_NUMBER
- #ifdef SSL_R_TOO_MUCH_SKIPPED_EARLY_DATA
- || n == SSL_R_TOO_MUCH_SKIPPED_EARLY_DATA
- #endif
- || n == SSL_R_BAD_LENGTH
- || n == SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC
- #ifdef SSL_R_APPLICATION_DATA_AFTER_CLOSE_NOTIFY
- || n == SSL_R_APPLICATION_DATA_AFTER_CLOSE_NOTIFY
- #endif
- #ifdef SSL_R_APPLICATION_DATA_ON_SHUTDOWN
- || n == SSL_R_APPLICATION_DATA_ON_SHUTDOWN
- #endif
- #ifdef SSL_R_BAD_LEGACY_VERSION
- || n == SSL_R_BAD_LEGACY_VERSION
- #endif
- #ifdef SSL_R_MIXED_HANDSHAKE_AND_NON_HANDSHAKE_DATA
- || n == SSL_R_MIXED_HANDSHAKE_AND_NON_HANDSHAKE_DATA
- #endif
- #ifdef SSL_R_RECORD_TOO_SMALL
- || n == SSL_R_RECORD_TOO_SMALL
- #endif
- #ifdef SSL_R_SSL3_SESSION_ID_TOO_LONG
- || n == SSL_R_SSL3_SESSION_ID_TOO_LONG
- #endif
- #ifdef SSL_R_BAD_ECPOINT
- || n == SSL_R_BAD_ECPOINT
- #endif
- #ifdef SSL_R_RENEGOTIATE_EXT_TOO_LONG
- || n == SSL_R_RENEGOTIATE_EXT_TOO_LONG
- || n == SSL_R_RENEGOTIATION_ENCODING_ERR
- || n == SSL_R_RENEGOTIATION_MISMATCH
- #endif
- #ifdef SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED
- || n == SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED
- #endif
- #ifdef SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING
- || n == SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING
- #endif
- #ifdef SSL_R_INAPPROPRIATE_FALLBACK
- || n == SSL_R_INAPPROPRIATE_FALLBACK
- #endif
- #ifdef SSL_R_NO_SHARED_SIGNATURE_ALGORITHMS
- || n == SSL_R_NO_SHARED_SIGNATURE_ALGORITHMS
- #endif
- #ifdef SSL_R_NO_SHARED_SIGATURE_ALGORITHMS
- || n == SSL_R_NO_SHARED_SIGATURE_ALGORITHMS
- #endif
- #ifdef SSL_R_CERT_CB_ERROR
- || n == SSL_R_CERT_CB_ERROR
- #endif
- #ifdef SSL_R_VERSION_TOO_LOW
- || n == SSL_R_VERSION_TOO_LOW
- #endif
- #ifdef SSL_R_TOO_MANY_WARN_ALERTS
- || n == SSL_R_TOO_MANY_WARN_ALERTS
- #endif
- #ifdef SSL_R_BAD_RECORD_TYPE
- || n == SSL_R_BAD_RECORD_TYPE
- #endif
- || n == 1000
- #ifdef SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE
- || n == SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE
- || n == SSL_R_SSLV3_ALERT_BAD_RECORD_MAC
- || n == SSL_R_TLSV1_ALERT_DECRYPTION_FAILED
- || n == SSL_R_TLSV1_ALERT_RECORD_OVERFLOW
- || n == SSL_R_SSLV3_ALERT_DECOMPRESSION_FAILURE
- || n == SSL_R_SSLV3_ALERT_HANDSHAKE_FAILURE
- || n == SSL_R_SSLV3_ALERT_NO_CERTIFICATE
- || n == SSL_R_SSLV3_ALERT_BAD_CERTIFICATE
- || n == SSL_R_SSLV3_ALERT_UNSUPPORTED_CERTIFICATE
- || n == SSL_R_SSLV3_ALERT_CERTIFICATE_REVOKED
- || n == SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED
- || n == SSL_R_SSLV3_ALERT_CERTIFICATE_UNKNOWN
- || n == SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER
- || n == SSL_R_TLSV1_ALERT_UNKNOWN_CA
- || n == SSL_R_TLSV1_ALERT_ACCESS_DENIED
- || n == SSL_R_TLSV1_ALERT_DECODE_ERROR
- || n == SSL_R_TLSV1_ALERT_DECRYPT_ERROR
- || n == SSL_R_TLSV1_ALERT_EXPORT_RESTRICTION
- || n == SSL_R_TLSV1_ALERT_PROTOCOL_VERSION
- || n == SSL_R_TLSV1_ALERT_INSUFFICIENT_SECURITY
- || n == SSL_R_TLSV1_ALERT_INTERNAL_ERROR
- || n == SSL_R_TLSV1_ALERT_USER_CANCELLED
- || n == SSL_R_TLSV1_ALERT_NO_RENEGOTIATION
- #endif
- )
- {
- switch (c->log_error) {
- case NGX_ERROR_IGNORE_ECONNRESET:
- case NGX_ERROR_INFO:
- level = NGX_LOG_INFO;
- break;
- case NGX_ERROR_ERR:
- level = NGX_LOG_ERR;
- break;
- default:
- break;
- }
- }
- }
- ngx_ssl_error(level, c->log, err, text);
- }
- static void
- ngx_ssl_clear_error(ngx_log_t *log)
- {
- while (ERR_peek_error()) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0, "ignoring stale global SSL error");
- }
- ERR_clear_error();
- }
- void ngx_cdecl
- ngx_ssl_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, char *fmt, ...)
- {
- int flags;
- u_long n;
- va_list args;
- u_char *p, *last;
- u_char errstr[NGX_MAX_CONF_ERRSTR];
- const char *data;
- last = errstr + NGX_MAX_CONF_ERRSTR;
- va_start(args, fmt);
- p = ngx_vslprintf(errstr, last - 1, fmt, args);
- va_end(args);
- if (ERR_peek_error()) {
- p = ngx_cpystrn(p, (u_char *) " (SSL:", last - p);
- for ( ;; ) {
- n = ERR_peek_error_data(&data, &flags);
- if (n == 0) {
- break;
- }
-
- if (p >= last - 1) {
- goto next;
- }
- *p++ = ' ';
- ERR_error_string_n(n, (char *) p, last - p);
- while (p < last && *p) {
- p++;
- }
- if (p < last && *data && (flags & ERR_TXT_STRING)) {
- *p++ = ':';
- p = ngx_cpystrn(p, (u_char *) data, last - p);
- }
- next:
- (void) ERR_get_error();
- }
- if (p < last) {
- *p++ = ')';
- }
- }
- ngx_log_error(level, log, err, "%*s", p - errstr, errstr);
- }
- ngx_int_t
- ngx_ssl_session_cache(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
- ngx_array_t *certificates, ssize_t builtin_session_cache,
- ngx_shm_zone_t *shm_zone, time_t timeout)
- {
- long cache_mode;
- SSL_CTX_set_timeout(ssl->ctx, (long) timeout);
- if (ngx_ssl_session_id_context(ssl, sess_ctx, certificates) != NGX_OK) {
- return NGX_ERROR;
- }
- if (builtin_session_cache == NGX_SSL_NO_SCACHE) {
- SSL_CTX_set_session_cache_mode(ssl->ctx, SSL_SESS_CACHE_OFF);
- return NGX_OK;
- }
- if (builtin_session_cache == NGX_SSL_NONE_SCACHE) {
-
- SSL_CTX_set_session_cache_mode(ssl->ctx,
- SSL_SESS_CACHE_SERVER
- |SSL_SESS_CACHE_NO_AUTO_CLEAR
- |SSL_SESS_CACHE_NO_INTERNAL_STORE);
- SSL_CTX_sess_set_cache_size(ssl->ctx, 1);
- return NGX_OK;
- }
- cache_mode = SSL_SESS_CACHE_SERVER;
- if (shm_zone && builtin_session_cache == NGX_SSL_NO_BUILTIN_SCACHE) {
- cache_mode |= SSL_SESS_CACHE_NO_INTERNAL;
- }
- SSL_CTX_set_session_cache_mode(ssl->ctx, cache_mode);
- if (builtin_session_cache != NGX_SSL_NO_BUILTIN_SCACHE) {
- if (builtin_session_cache != NGX_SSL_DFLT_BUILTIN_SCACHE) {
- SSL_CTX_sess_set_cache_size(ssl->ctx, builtin_session_cache);
- }
- }
- if (shm_zone) {
- SSL_CTX_sess_set_new_cb(ssl->ctx, ngx_ssl_new_session);
- SSL_CTX_sess_set_get_cb(ssl->ctx, ngx_ssl_get_cached_session);
- SSL_CTX_sess_set_remove_cb(ssl->ctx, ngx_ssl_remove_session);
- if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_session_cache_index, shm_zone)
- == 0)
- {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_set_ex_data() failed");
- return NGX_ERROR;
- }
- }
- return NGX_OK;
- }
- static ngx_int_t
- ngx_ssl_session_id_context(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
- ngx_array_t *certificates)
- {
- int n, i;
- X509 *cert;
- X509_NAME *name;
- ngx_str_t *certs;
- ngx_uint_t k;
- EVP_MD_CTX *md;
- unsigned int len;
- STACK_OF(X509_NAME) *list;
- u_char buf[EVP_MAX_MD_SIZE];
-
- md = EVP_MD_CTX_create();
- if (md == NULL) {
- return NGX_ERROR;
- }
- if (EVP_DigestInit_ex(md, EVP_sha1(), NULL) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "EVP_DigestInit_ex() failed");
- goto failed;
- }
- if (EVP_DigestUpdate(md, sess_ctx->data, sess_ctx->len) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "EVP_DigestUpdate() failed");
- goto failed;
- }
- for (k = 0; k < ssl->certs.nelts; k++) {
- cert = ((X509 **) ssl->certs.elts)[k];
- if (X509_digest(cert, EVP_sha1(), buf, &len) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "X509_digest() failed");
- goto failed;
- }
- if (EVP_DigestUpdate(md, buf, len) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "EVP_DigestUpdate() failed");
- goto failed;
- }
- }
- if (ssl->certs.nelts == 0 && certificates != NULL) {
-
- certs = certificates->elts;
- for (k = 0; k < certificates->nelts; k++) {
- if (EVP_DigestUpdate(md, certs[k].data, certs[k].len) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "EVP_DigestUpdate() failed");
- goto failed;
- }
- }
- }
- list = SSL_CTX_get_client_CA_list(ssl->ctx);
- if (list != NULL) {
- n = sk_X509_NAME_num(list);
- for (i = 0; i < n; i++) {
- name = sk_X509_NAME_value(list, i);
- if (X509_NAME_digest(name, EVP_sha1(), buf, &len) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "X509_NAME_digest() failed");
- goto failed;
- }
- if (EVP_DigestUpdate(md, buf, len) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "EVP_DigestUpdate() failed");
- goto failed;
- }
- }
- }
- if (EVP_DigestFinal_ex(md, buf, &len) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "EVP_DigestFinal_ex() failed");
- goto failed;
- }
- EVP_MD_CTX_destroy(md);
- if (SSL_CTX_set_session_id_context(ssl->ctx, buf, len) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_set_session_id_context() failed");
- return NGX_ERROR;
- }
- return NGX_OK;
- failed:
- EVP_MD_CTX_destroy(md);
- return NGX_ERROR;
- }
- ngx_int_t
- ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone, void *data)
- {
- size_t len;
- ngx_slab_pool_t *shpool;
- ngx_ssl_session_cache_t *cache;
- if (data) {
- shm_zone->data = data;
- return NGX_OK;
- }
- shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
- if (shm_zone->shm.exists) {
- shm_zone->data = shpool->data;
- return NGX_OK;
- }
- cache = ngx_slab_alloc(shpool, sizeof(ngx_ssl_session_cache_t));
- if (cache == NULL) {
- return NGX_ERROR;
- }
- shpool->data = cache;
- shm_zone->data = cache;
- ngx_rbtree_init(&cache->session_rbtree, &cache->sentinel,
- ngx_ssl_session_rbtree_insert_value);
- ngx_queue_init(&cache->expire_queue);
- cache->ticket_keys[0].expire = 0;
- cache->ticket_keys[1].expire = 0;
- cache->ticket_keys[2].expire = 0;
- cache->fail_time = 0;
- len = sizeof(" in SSL session shared cache \"\"") + shm_zone->shm.name.len;
- shpool->log_ctx = ngx_slab_alloc(shpool, len);
- if (shpool->log_ctx == NULL) {
- return NGX_ERROR;
- }
- ngx_sprintf(shpool->log_ctx, " in SSL session shared cache \"%V\"%Z",
- &shm_zone->shm.name);
- shpool->log_nomem = 0;
- return NGX_OK;
- }
- static int
- ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn, ngx_ssl_session_t *sess)
- {
- int len;
- u_char *p, *session_id;
- size_t n;
- uint32_t hash;
- SSL_CTX *ssl_ctx;
- unsigned int session_id_length;
- ngx_shm_zone_t *shm_zone;
- ngx_connection_t *c;
- ngx_slab_pool_t *shpool;
- ngx_ssl_sess_id_t *sess_id;
- ngx_ssl_session_cache_t *cache;
- u_char buf[NGX_SSL_MAX_SESSION_SIZE];
- #ifdef TLS1_3_VERSION
-
- if (SSL_version(ssl_conn) == TLS1_3_VERSION
- && (SSL_get_options(ssl_conn) & SSL_OP_NO_TICKET) == 0)
- {
- return 0;
- }
- #endif
- len = i2d_SSL_SESSION(sess, NULL);
-
- if (len > NGX_SSL_MAX_SESSION_SIZE) {
- return 0;
- }
- p = buf;
- i2d_SSL_SESSION(sess, &p);
- session_id = (u_char *) SSL_SESSION_get_id(sess, &session_id_length);
-
- if (session_id_length > 32) {
- return 0;
- }
- c = ngx_ssl_get_connection(ssl_conn);
- ssl_ctx = c->ssl->session_ctx;
- shm_zone = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_session_cache_index);
- cache = shm_zone->data;
- shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
- ngx_shmtx_lock(&shpool->mutex);
-
- ngx_ssl_expire_sessions(cache, shpool, 1);
- #if (NGX_PTR_SIZE == 8)
- n = sizeof(ngx_ssl_sess_id_t);
- #else
- n = offsetof(ngx_ssl_sess_id_t, session) + len;
- #endif
- sess_id = ngx_slab_alloc_locked(shpool, n);
- if (sess_id == NULL) {
-
- ngx_ssl_expire_sessions(cache, shpool, 0);
- sess_id = ngx_slab_alloc_locked(shpool, n);
- if (sess_id == NULL) {
- goto failed;
- }
- }
- #if (NGX_PTR_SIZE == 8)
- sess_id->session = ngx_slab_alloc_locked(shpool, len);
- if (sess_id->session == NULL) {
-
- ngx_ssl_expire_sessions(cache, shpool, 0);
- sess_id->session = ngx_slab_alloc_locked(shpool, len);
- if (sess_id->session == NULL) {
- goto failed;
- }
- }
- #endif
- ngx_memcpy(sess_id->session, buf, len);
- ngx_memcpy(sess_id->id, session_id, session_id_length);
- hash = ngx_crc32_short(session_id, session_id_length);
- ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "ssl new session: %08XD:%ud:%d",
- hash, session_id_length, len);
- sess_id->node.key = hash;
- sess_id->node.data = (u_char) session_id_length;
- sess_id->len = len;
- sess_id->expire = ngx_time() + SSL_CTX_get_timeout(ssl_ctx);
- ngx_queue_insert_head(&cache->expire_queue, &sess_id->queue);
- ngx_rbtree_insert(&cache->session_rbtree, &sess_id->node);
- ngx_shmtx_unlock(&shpool->mutex);
- return 0;
- failed:
- if (sess_id) {
- ngx_slab_free_locked(shpool, sess_id);
- }
- ngx_shmtx_unlock(&shpool->mutex);
- if (cache->fail_time != ngx_time()) {
- cache->fail_time = ngx_time();
- ngx_log_error(NGX_LOG_WARN, c->log, 0,
- "could not allocate new session%s", shpool->log_ctx);
- }
- return 0;
- }
- static ngx_ssl_session_t *
- ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn,
- #if OPENSSL_VERSION_NUMBER >= 0x10100003L
- const
- #endif
- u_char *id, int len, int *copy)
- {
- size_t slen;
- uint32_t hash;
- ngx_int_t rc;
- const u_char *p;
- ngx_shm_zone_t *shm_zone;
- ngx_slab_pool_t *shpool;
- ngx_rbtree_node_t *node, *sentinel;
- ngx_ssl_session_t *sess;
- ngx_ssl_sess_id_t *sess_id;
- ngx_ssl_session_cache_t *cache;
- u_char buf[NGX_SSL_MAX_SESSION_SIZE];
- ngx_connection_t *c;
- hash = ngx_crc32_short((u_char *) (uintptr_t) id, (size_t) len);
- *copy = 0;
- c = ngx_ssl_get_connection(ssl_conn);
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "ssl get session: %08XD:%d", hash, len);
- shm_zone = SSL_CTX_get_ex_data(c->ssl->session_ctx,
- ngx_ssl_session_cache_index);
- cache = shm_zone->data;
- sess = NULL;
- shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
- ngx_shmtx_lock(&shpool->mutex);
- node = cache->session_rbtree.root;
- sentinel = cache->session_rbtree.sentinel;
- while (node != sentinel) {
- if (hash < node->key) {
- node = node->left;
- continue;
- }
- if (hash > node->key) {
- node = node->right;
- continue;
- }
-
- sess_id = (ngx_ssl_sess_id_t *) node;
- rc = ngx_memn2cmp((u_char *) (uintptr_t) id, sess_id->id,
- (size_t) len, (size_t) node->data);
- if (rc == 0) {
- if (sess_id->expire > ngx_time()) {
- slen = sess_id->len;
- ngx_memcpy(buf, sess_id->session, slen);
- ngx_shmtx_unlock(&shpool->mutex);
- p = buf;
- sess = d2i_SSL_SESSION(NULL, &p, slen);
- return sess;
- }
- ngx_queue_remove(&sess_id->queue);
- ngx_rbtree_delete(&cache->session_rbtree, node);
- ngx_explicit_memzero(sess_id->session, sess_id->len);
- #if (NGX_PTR_SIZE == 8)
- ngx_slab_free_locked(shpool, sess_id->session);
- #endif
- ngx_slab_free_locked(shpool, sess_id);
- sess = NULL;
- goto done;
- }
- node = (rc < 0) ? node->left : node->right;
- }
- done:
- ngx_shmtx_unlock(&shpool->mutex);
- return sess;
- }
- void
- ngx_ssl_remove_cached_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
- {
- SSL_CTX_remove_session(ssl, sess);
- ngx_ssl_remove_session(ssl, sess);
- }
- static void
- ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
- {
- u_char *id;
- uint32_t hash;
- ngx_int_t rc;
- unsigned int len;
- ngx_shm_zone_t *shm_zone;
- ngx_slab_pool_t *shpool;
- ngx_rbtree_node_t *node, *sentinel;
- ngx_ssl_sess_id_t *sess_id;
- ngx_ssl_session_cache_t *cache;
- shm_zone = SSL_CTX_get_ex_data(ssl, ngx_ssl_session_cache_index);
- if (shm_zone == NULL) {
- return;
- }
- cache = shm_zone->data;
- id = (u_char *) SSL_SESSION_get_id(sess, &len);
- hash = ngx_crc32_short(id, len);
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
- "ssl remove session: %08XD:%ud", hash, len);
- shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
- ngx_shmtx_lock(&shpool->mutex);
- node = cache->session_rbtree.root;
- sentinel = cache->session_rbtree.sentinel;
- while (node != sentinel) {
- if (hash < node->key) {
- node = node->left;
- continue;
- }
- if (hash > node->key) {
- node = node->right;
- continue;
- }
-
- sess_id = (ngx_ssl_sess_id_t *) node;
- rc = ngx_memn2cmp(id, sess_id->id, len, (size_t) node->data);
- if (rc == 0) {
- ngx_queue_remove(&sess_id->queue);
- ngx_rbtree_delete(&cache->session_rbtree, node);
- ngx_explicit_memzero(sess_id->session, sess_id->len);
- #if (NGX_PTR_SIZE == 8)
- ngx_slab_free_locked(shpool, sess_id->session);
- #endif
- ngx_slab_free_locked(shpool, sess_id);
- goto done;
- }
- node = (rc < 0) ? node->left : node->right;
- }
- done:
- ngx_shmtx_unlock(&shpool->mutex);
- }
- static void
- ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
- ngx_slab_pool_t *shpool, ngx_uint_t n)
- {
- time_t now;
- ngx_queue_t *q;
- ngx_ssl_sess_id_t *sess_id;
- now = ngx_time();
- while (n < 3) {
- if (ngx_queue_empty(&cache->expire_queue)) {
- return;
- }
- q = ngx_queue_last(&cache->expire_queue);
- sess_id = ngx_queue_data(q, ngx_ssl_sess_id_t, queue);
- if (n++ != 0 && sess_id->expire > now) {
- return;
- }
- ngx_queue_remove(q);
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
- "expire session: %08Xi", sess_id->node.key);
- ngx_rbtree_delete(&cache->session_rbtree, &sess_id->node);
- ngx_explicit_memzero(sess_id->session, sess_id->len);
- #if (NGX_PTR_SIZE == 8)
- ngx_slab_free_locked(shpool, sess_id->session);
- #endif
- ngx_slab_free_locked(shpool, sess_id);
- }
- }
- static void
- ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
- ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
- {
- ngx_rbtree_node_t **p;
- ngx_ssl_sess_id_t *sess_id, *sess_id_temp;
- for ( ;; ) {
- if (node->key < temp->key) {
- p = &temp->left;
- } else if (node->key > temp->key) {
- p = &temp->right;
- } else {
- sess_id = (ngx_ssl_sess_id_t *) node;
- sess_id_temp = (ngx_ssl_sess_id_t *) temp;
- p = (ngx_memn2cmp(sess_id->id, sess_id_temp->id,
- (size_t) node->data, (size_t) temp->data)
- < 0) ? &temp->left : &temp->right;
- }
- if (*p == sentinel) {
- break;
- }
- temp = *p;
- }
- *p = node;
- node->parent = temp;
- node->left = sentinel;
- node->right = sentinel;
- ngx_rbt_red(node);
- }
- #ifdef SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB
- ngx_int_t
- ngx_ssl_session_ticket_keys(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_array_t *paths)
- {
- u_char buf[80];
- size_t size;
- ssize_t n;
- ngx_str_t *path;
- ngx_file_t file;
- ngx_uint_t i;
- ngx_array_t *keys;
- ngx_file_info_t fi;
- ngx_pool_cleanup_t *cln;
- ngx_ssl_ticket_key_t *key;
- if (paths == NULL
- && SSL_CTX_get_ex_data(ssl->ctx, ngx_ssl_session_cache_index) == NULL)
- {
- return NGX_OK;
- }
- keys = ngx_array_create(cf->pool, paths ? paths->nelts : 3,
- sizeof(ngx_ssl_ticket_key_t));
- if (keys == NULL) {
- return NGX_ERROR;
- }
- cln = ngx_pool_cleanup_add(cf->pool, 0);
- if (cln == NULL) {
- return NGX_ERROR;
- }
- cln->handler = ngx_ssl_ticket_keys_cleanup;
- cln->data = keys;
- if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_ticket_keys_index, keys) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
- "SSL_CTX_set_ex_data() failed");
- return NGX_ERROR;
- }
- if (SSL_CTX_set_tlsext_ticket_key_cb(ssl->ctx, ngx_ssl_ticket_key_callback)
- == 0)
- {
- ngx_log_error(NGX_LOG_WARN, cf->log, 0,
- "nginx was built with Session Tickets support, however, "
- "now it is linked dynamically to an OpenSSL library "
- "which has no tlsext support, therefore Session Tickets "
- "are not available");
- return NGX_OK;
- }
- if (paths == NULL) {
-
- key = ngx_array_push_n(keys, 3);
- key[0].shared = 1;
- key[0].expire = 0;
- key[1].shared = 1;
- key[1].expire = 0;
- key[2].shared = 1;
- key[2].expire = 0;
- return NGX_OK;
- }
- path = paths->elts;
- for (i = 0; i < paths->nelts; i++) {
- if (ngx_conf_full_name(cf->cycle, &path[i], 1) != NGX_OK) {
- return NGX_ERROR;
- }
- ngx_memzero(&file, sizeof(ngx_file_t));
- file.name = path[i];
- file.log = cf->log;
- file.fd = ngx_open_file(file.name.data, NGX_FILE_RDONLY,
- NGX_FILE_OPEN, 0);
- if (file.fd == NGX_INVALID_FILE) {
- ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
- ngx_open_file_n " \"%V\" failed", &file.name);
- return NGX_ERROR;
- }
- if (ngx_fd_info(file.fd, &fi) == NGX_FILE_ERROR) {
- ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno,
- ngx_fd_info_n " \"%V\" failed", &file.name);
- goto failed;
- }
- size = ngx_file_size(&fi);
- if (size != 48 && size != 80) {
- ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
- "\"%V\" must be 48 or 80 bytes", &file.name);
- goto failed;
- }
- n = ngx_read_file(&file, buf, size, 0);
- if (n == NGX_ERROR) {
- ngx_conf_log_error(NGX_LOG_CRIT, cf, ngx_errno,
- ngx_read_file_n " \"%V\" failed", &file.name);
- goto failed;
- }
- if ((size_t) n != size) {
- ngx_conf_log_error(NGX_LOG_CRIT, cf, 0,
- ngx_read_file_n " \"%V\" returned only "
- "%z bytes instead of %uz", &file.name, n, size);
- goto failed;
- }
- key = ngx_array_push(keys);
- if (key == NULL) {
- goto failed;
- }
- key->shared = 0;
- key->expire = 1;
- if (size == 48) {
- key->size = 48;
- ngx_memcpy(key->name, buf, 16);
- ngx_memcpy(key->aes_key, buf + 16, 16);
- ngx_memcpy(key->hmac_key, buf + 32, 16);
- } else {
- key->size = 80;
- ngx_memcpy(key->name, buf, 16);
- ngx_memcpy(key->hmac_key, buf + 16, 32);
- ngx_memcpy(key->aes_key, buf + 48, 32);
- }
- if (ngx_close_file(file.fd) == NGX_FILE_ERROR) {
- ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno,
- ngx_close_file_n " \"%V\" failed", &file.name);
- }
- ngx_explicit_memzero(&buf, 80);
- }
- return NGX_OK;
- failed:
- if (ngx_close_file(file.fd) == NGX_FILE_ERROR) {
- ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno,
- ngx_close_file_n " \"%V\" failed", &file.name);
- }
- ngx_explicit_memzero(&buf, 80);
- return NGX_ERROR;
- }
- static int
- ngx_ssl_ticket_key_callback(ngx_ssl_conn_t *ssl_conn,
- unsigned char *name, unsigned char *iv, EVP_CIPHER_CTX *ectx,
- HMAC_CTX *hctx, int enc)
- {
- size_t size;
- SSL_CTX *ssl_ctx;
- ngx_uint_t i;
- ngx_array_t *keys;
- ngx_connection_t *c;
- ngx_ssl_ticket_key_t *key;
- const EVP_MD *digest;
- const EVP_CIPHER *cipher;
- c = ngx_ssl_get_connection(ssl_conn);
- ssl_ctx = c->ssl->session_ctx;
- if (ngx_ssl_rotate_ticket_keys(ssl_ctx, c->log) != NGX_OK) {
- return -1;
- }
- #ifdef OPENSSL_NO_SHA256
- digest = EVP_sha1();
- #else
- digest = EVP_sha256();
- #endif
- keys = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_ticket_keys_index);
- if (keys == NULL) {
- return -1;
- }
- key = keys->elts;
- if (enc == 1) {
-
- ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "ssl ticket encrypt, key: \"%*xs\" (%s session)",
- (size_t) 16, key[0].name,
- SSL_session_reused(ssl_conn) ? "reused" : "new");
- if (key[0].size == 48) {
- cipher = EVP_aes_128_cbc();
- size = 16;
- } else {
- cipher = EVP_aes_256_cbc();
- size = 32;
- }
- if (RAND_bytes(iv, EVP_CIPHER_iv_length(cipher)) != 1) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "RAND_bytes() failed");
- return -1;
- }
- if (EVP_EncryptInit_ex(ectx, cipher, NULL, key[0].aes_key, iv) != 1) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0,
- "EVP_EncryptInit_ex() failed");
- return -1;
- }
- #if OPENSSL_VERSION_NUMBER >= 0x10000000L
- if (HMAC_Init_ex(hctx, key[0].hmac_key, size, digest, NULL) != 1) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "HMAC_Init_ex() failed");
- return -1;
- }
- #else
- HMAC_Init_ex(hctx, key[0].hmac_key, size, digest, NULL);
- #endif
- ngx_memcpy(name, key[0].name, 16);
- return 1;
- } else {
-
- for (i = 0; i < keys->nelts; i++) {
- if (ngx_memcmp(name, key[i].name, 16) == 0) {
- goto found;
- }
- }
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "ssl ticket decrypt, key: \"%*xs\" not found",
- (size_t) 16, name);
- return 0;
- found:
- ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "ssl ticket decrypt, key: \"%*xs\"%s",
- (size_t) 16, key[i].name, (i == 0) ? " (default)" : "");
- if (key[i].size == 48) {
- cipher = EVP_aes_128_cbc();
- size = 16;
- } else {
- cipher = EVP_aes_256_cbc();
- size = 32;
- }
- #if OPENSSL_VERSION_NUMBER >= 0x10000000L
- if (HMAC_Init_ex(hctx, key[i].hmac_key, size, digest, NULL) != 1) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "HMAC_Init_ex() failed");
- return -1;
- }
- #else
- HMAC_Init_ex(hctx, key[i].hmac_key, size, digest, NULL);
- #endif
- if (EVP_DecryptInit_ex(ectx, cipher, NULL, key[i].aes_key, iv) != 1) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0,
- "EVP_DecryptInit_ex() failed");
- return -1;
- }
-
- #ifdef TLS1_3_VERSION
- if (SSL_version(ssl_conn) == TLS1_3_VERSION) {
- return 2;
- }
- #endif
-
- if (i != 0 && key[i].expire) {
- return 2;
- }
- return 1;
- }
- }
- static ngx_int_t
- ngx_ssl_rotate_ticket_keys(SSL_CTX *ssl_ctx, ngx_log_t *log)
- {
- time_t now, expire;
- ngx_array_t *keys;
- ngx_shm_zone_t *shm_zone;
- ngx_slab_pool_t *shpool;
- ngx_ssl_ticket_key_t *key;
- ngx_ssl_session_cache_t *cache;
- u_char buf[80];
- keys = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_ticket_keys_index);
- if (keys == NULL) {
- return NGX_OK;
- }
- key = keys->elts;
- if (!key[0].shared) {
- return NGX_OK;
- }
-
- now = ngx_time();
- expire = now + SSL_CTX_get_timeout(ssl_ctx);
- if (key[0].expire >= expire && key[1].expire >= now) {
- return NGX_OK;
- }
- shm_zone = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_session_cache_index);
- cache = shm_zone->data;
- shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
- ngx_shmtx_lock(&shpool->mutex);
- key = cache->ticket_keys;
- if (key[0].expire == 0) {
-
- if (RAND_bytes(buf, 80) != 1) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0, "RAND_bytes() failed");
- ngx_shmtx_unlock(&shpool->mutex);
- return NGX_ERROR;
- }
- key[0].shared = 1;
- key[0].expire = expire;
- key[0].size = 80;
- ngx_memcpy(key[0].name, buf, 16);
- ngx_memcpy(key[0].hmac_key, buf + 16, 32);
- ngx_memcpy(key[0].aes_key, buf + 48, 32);
- ngx_explicit_memzero(&buf, 80);
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, log, 0,
- "ssl ticket key: \"%*xs\"",
- (size_t) 16, key[0].name);
-
- key[2] = key[0];
- }
- if (key[1].expire < now) {
-
- key[1] = key[0];
- key[0] = key[2];
- if (RAND_bytes(buf, 80) != 1) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0, "RAND_bytes() failed");
- ngx_shmtx_unlock(&shpool->mutex);
- return NGX_ERROR;
- }
- key[2].shared = 1;
- key[2].expire = 0;
- key[2].size = 80;
- ngx_memcpy(key[2].name, buf, 16);
- ngx_memcpy(key[2].hmac_key, buf + 16, 32);
- ngx_memcpy(key[2].aes_key, buf + 48, 32);
- ngx_explicit_memzero(&buf, 80);
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, log, 0,
- "ssl ticket key: \"%*xs\"",
- (size_t) 16, key[2].name);
- }
-
- if (expire > key[0].expire) {
- key[0].expire = expire;
- }
-
- ngx_memcpy(keys->elts, cache->ticket_keys,
- 2 * sizeof(ngx_ssl_ticket_key_t));
- ngx_shmtx_unlock(&shpool->mutex);
- return NGX_OK;
- }
- static void
- ngx_ssl_ticket_keys_cleanup(void *data)
- {
- ngx_array_t *keys = data;
- ngx_explicit_memzero(keys->elts,
- keys->nelts * sizeof(ngx_ssl_ticket_key_t));
- }
- #else
- ngx_int_t
- ngx_ssl_session_ticket_keys(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_array_t *paths)
- {
- if (paths) {
- ngx_log_error(NGX_LOG_WARN, ssl->log, 0,
- "\"ssl_session_ticket_key\" ignored, not supported");
- }
- return NGX_OK;
- }
- #endif
- void
- ngx_ssl_cleanup_ctx(void *data)
- {
- ngx_ssl_t *ssl = data;
- X509 *cert;
- ngx_uint_t i;
- for (i = 0; i < ssl->certs.nelts; i++) {
- cert = ((X509 **) ssl->certs.elts)[i];
- X509_free(cert);
- }
- SSL_CTX_free(ssl->ctx);
- }
- ngx_int_t
- ngx_ssl_check_host(ngx_connection_t *c, ngx_str_t *name)
- {
- X509 *cert;
- cert = SSL_get_peer_certificate(c->ssl->connection);
- if (cert == NULL) {
- return NGX_ERROR;
- }
- #ifdef X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT
-
- if (name->len == 0) {
- goto failed;
- }
- if (X509_check_host(cert, (char *) name->data, name->len, 0, NULL) != 1) {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "X509_check_host(): no match");
- goto failed;
- }
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "X509_check_host(): match");
- goto found;
- #else
- {
- int n, i;
- X509_NAME *sname;
- ASN1_STRING *str;
- X509_NAME_ENTRY *entry;
- GENERAL_NAME *altname;
- STACK_OF(GENERAL_NAME) *altnames;
-
- altnames = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
- if (altnames) {
- n = sk_GENERAL_NAME_num(altnames);
- for (i = 0; i < n; i++) {
- altname = sk_GENERAL_NAME_value(altnames, i);
- if (altname->type != GEN_DNS) {
- continue;
- }
- str = altname->d.dNSName;
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL subjectAltName: \"%*s\"",
- ASN1_STRING_length(str), ASN1_STRING_data(str));
- if (ngx_ssl_check_name(name, str) == NGX_OK) {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL subjectAltName: match");
- GENERAL_NAMES_free(altnames);
- goto found;
- }
- }
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL subjectAltName: no match");
- GENERAL_NAMES_free(altnames);
- goto failed;
- }
-
- sname = X509_get_subject_name(cert);
- if (sname == NULL) {
- goto failed;
- }
- i = -1;
- for ( ;; ) {
- i = X509_NAME_get_index_by_NID(sname, NID_commonName, i);
- if (i < 0) {
- break;
- }
- entry = X509_NAME_get_entry(sname, i);
- str = X509_NAME_ENTRY_get_data(entry);
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL commonName: \"%*s\"",
- ASN1_STRING_length(str), ASN1_STRING_data(str));
- if (ngx_ssl_check_name(name, str) == NGX_OK) {
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL commonName: match");
- goto found;
- }
- }
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
- "SSL commonName: no match");
- }
- #endif
- failed:
- X509_free(cert);
- return NGX_ERROR;
- found:
- X509_free(cert);
- return NGX_OK;
- }
- #ifndef X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT
- static ngx_int_t
- ngx_ssl_check_name(ngx_str_t *name, ASN1_STRING *pattern)
- {
- u_char *s, *p, *end;
- size_t slen, plen;
- s = name->data;
- slen = name->len;
- p = ASN1_STRING_data(pattern);
- plen = ASN1_STRING_length(pattern);
- if (slen == plen && ngx_strncasecmp(s, p, plen) == 0) {
- return NGX_OK;
- }
- if (plen > 2 && p[0] == '*' && p[1] == '.') {
- plen -= 1;
- p += 1;
- end = s + slen;
- s = ngx_strlchr(s, end, '.');
- if (s == NULL) {
- return NGX_ERROR;
- }
- slen = end - s;
- if (plen == slen && ngx_strncasecmp(s, p, plen) == 0) {
- return NGX_OK;
- }
- }
- return NGX_ERROR;
- }
- #endif
- ngx_int_t
- ngx_ssl_get_protocol(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- s->data = (u_char *) SSL_get_version(c->ssl->connection);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_cipher_name(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- s->data = (u_char *) SSL_get_cipher_name(c->ssl->connection);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_ciphers(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- #ifdef SSL_CTRL_GET_RAW_CIPHERLIST
- int n, i, bytes;
- size_t len;
- u_char *ciphers, *p;
- const SSL_CIPHER *cipher;
- bytes = SSL_get0_raw_cipherlist(c->ssl->connection, NULL);
- n = SSL_get0_raw_cipherlist(c->ssl->connection, &ciphers);
- if (n <= 0) {
- s->len = 0;
- return NGX_OK;
- }
- len = 0;
- n /= bytes;
- for (i = 0; i < n; i++) {
- cipher = SSL_CIPHER_find(c->ssl->connection, ciphers + i * bytes);
- if (cipher) {
- len += ngx_strlen(SSL_CIPHER_get_name(cipher));
- } else {
- len += sizeof("0x") - 1 + bytes * (sizeof("00") - 1);
- }
- len += sizeof(":") - 1;
- }
- s->data = ngx_pnalloc(pool, len);
- if (s->data == NULL) {
- return NGX_ERROR;
- }
- p = s->data;
- for (i = 0; i < n; i++) {
- cipher = SSL_CIPHER_find(c->ssl->connection, ciphers + i * bytes);
- if (cipher) {
- p = ngx_sprintf(p, "%s", SSL_CIPHER_get_name(cipher));
- } else {
- p = ngx_sprintf(p, "0x");
- p = ngx_hex_dump(p, ciphers + i * bytes, bytes);
- }
- *p++ = ':';
- }
- p--;
- s->len = p - s->data;
- #else
- u_char buf[4096];
- if (SSL_get_shared_ciphers(c->ssl->connection, (char *) buf, 4096)
- == NULL)
- {
- s->len = 0;
- return NGX_OK;
- }
- s->len = ngx_strlen(buf);
- s->data = ngx_pnalloc(pool, s->len);
- if (s->data == NULL) {
- return NGX_ERROR;
- }
- ngx_memcpy(s->data, buf, s->len);
- #endif
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_curve(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- #ifdef SSL_get_negotiated_group
- int nid;
- nid = SSL_get_negotiated_group(c->ssl->connection);
- if (nid != NID_undef) {
- if ((nid & TLSEXT_nid_unknown) == 0) {
- s->len = ngx_strlen(OBJ_nid2sn(nid));
- s->data = (u_char *) OBJ_nid2sn(nid);
- return NGX_OK;
- }
- s->len = sizeof("0x0000") - 1;
- s->data = ngx_pnalloc(pool, s->len);
- if (s->data == NULL) {
- return NGX_ERROR;
- }
- ngx_sprintf(s->data, "0x%04xd", nid & 0xffff);
- return NGX_OK;
- }
- #endif
- s->len = 0;
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_curves(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- #ifdef SSL_CTRL_GET_CURVES
- int *curves, n, i, nid;
- u_char *p;
- size_t len;
- n = SSL_get1_curves(c->ssl->connection, NULL);
- if (n <= 0) {
- s->len = 0;
- return NGX_OK;
- }
- curves = ngx_palloc(pool, n * sizeof(int));
- if (curves == NULL) {
- return NGX_ERROR;
- }
- n = SSL_get1_curves(c->ssl->connection, curves);
- len = 0;
- for (i = 0; i < n; i++) {
- nid = curves[i];
- if (nid & TLSEXT_nid_unknown) {
- len += sizeof("0x0000") - 1;
- } else {
- len += ngx_strlen(OBJ_nid2sn(nid));
- }
- len += sizeof(":") - 1;
- }
- s->data = ngx_pnalloc(pool, len);
- if (s->data == NULL) {
- return NGX_ERROR;
- }
- p = s->data;
- for (i = 0; i < n; i++) {
- nid = curves[i];
- if (nid & TLSEXT_nid_unknown) {
- p = ngx_sprintf(p, "0x%04xd", nid & 0xffff);
- } else {
- p = ngx_sprintf(p, "%s", OBJ_nid2sn(nid));
- }
- *p++ = ':';
- }
- p--;
- s->len = p - s->data;
- #else
- s->len = 0;
- #endif
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_session_id(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- u_char *buf;
- SSL_SESSION *sess;
- unsigned int len;
- sess = SSL_get0_session(c->ssl->connection);
- if (sess == NULL) {
- s->len = 0;
- return NGX_OK;
- }
- buf = (u_char *) SSL_SESSION_get_id(sess, &len);
- s->len = 2 * len;
- s->data = ngx_pnalloc(pool, 2 * len);
- if (s->data == NULL) {
- return NGX_ERROR;
- }
- ngx_hex_dump(s->data, buf, len);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_session_reused(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- if (SSL_session_reused(c->ssl->connection)) {
- ngx_str_set(s, "r");
- } else {
- ngx_str_set(s, ".");
- }
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_early_data(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- s->len = 0;
- #ifdef SSL_ERROR_EARLY_DATA_REJECTED
-
- if (SSL_in_early_data(c->ssl->connection)) {
- ngx_str_set(s, "1");
- }
- #elif defined SSL_READ_EARLY_DATA_SUCCESS
-
- if (!SSL_is_init_finished(c->ssl->connection)) {
- ngx_str_set(s, "1");
- }
- #endif
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_server_name(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
- size_t len;
- const char *name;
- name = SSL_get_servername(c->ssl->connection, TLSEXT_NAMETYPE_host_name);
- if (name) {
- len = ngx_strlen(name);
- s->len = len;
- s->data = ngx_pnalloc(pool, len);
- if (s->data == NULL) {
- return NGX_ERROR;
- }
- ngx_memcpy(s->data, name, len);
- return NGX_OK;
- }
- #endif
- s->len = 0;
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_alpn_protocol(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
- unsigned int len;
- const unsigned char *data;
- SSL_get0_alpn_selected(c->ssl->connection, &data, &len);
- if (len > 0) {
- s->data = ngx_pnalloc(pool, len);
- if (s->data == NULL) {
- return NGX_ERROR;
- }
- ngx_memcpy(s->data, data, len);
- s->len = len;
- return NGX_OK;
- }
- #endif
- s->len = 0;
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_raw_certificate(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- size_t len;
- BIO *bio;
- X509 *cert;
- s->len = 0;
- cert = SSL_get_peer_certificate(c->ssl->connection);
- if (cert == NULL) {
- return NGX_OK;
- }
- bio = BIO_new(BIO_s_mem());
- if (bio == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
- X509_free(cert);
- return NGX_ERROR;
- }
- if (PEM_write_bio_X509(bio, cert) == 0) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "PEM_write_bio_X509() failed");
- goto failed;
- }
- len = BIO_pending(bio);
- s->len = len;
- s->data = ngx_pnalloc(pool, len);
- if (s->data == NULL) {
- goto failed;
- }
- BIO_read(bio, s->data, len);
- BIO_free(bio);
- X509_free(cert);
- return NGX_OK;
- failed:
- BIO_free(bio);
- X509_free(cert);
- return NGX_ERROR;
- }
- ngx_int_t
- ngx_ssl_get_certificate(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- u_char *p;
- size_t len;
- ngx_uint_t i;
- ngx_str_t cert;
- if (ngx_ssl_get_raw_certificate(c, pool, &cert) != NGX_OK) {
- return NGX_ERROR;
- }
- if (cert.len == 0) {
- s->len = 0;
- return NGX_OK;
- }
- len = cert.len - 1;
- for (i = 0; i < cert.len - 1; i++) {
- if (cert.data[i] == LF) {
- len++;
- }
- }
- s->len = len;
- s->data = ngx_pnalloc(pool, len);
- if (s->data == NULL) {
- return NGX_ERROR;
- }
- p = s->data;
- for (i = 0; i < cert.len - 1; i++) {
- *p++ = cert.data[i];
- if (cert.data[i] == LF) {
- *p++ = '\t';
- }
- }
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_escaped_certificate(ngx_connection_t *c, ngx_pool_t *pool,
- ngx_str_t *s)
- {
- ngx_str_t cert;
- uintptr_t n;
- if (ngx_ssl_get_raw_certificate(c, pool, &cert) != NGX_OK) {
- return NGX_ERROR;
- }
- if (cert.len == 0) {
- s->len = 0;
- return NGX_OK;
- }
- n = ngx_escape_uri(NULL, cert.data, cert.len, NGX_ESCAPE_URI_COMPONENT);
- s->len = cert.len + n * 2;
- s->data = ngx_pnalloc(pool, s->len);
- if (s->data == NULL) {
- return NGX_ERROR;
- }
- ngx_escape_uri(s->data, cert.data, cert.len, NGX_ESCAPE_URI_COMPONENT);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_subject_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- BIO *bio;
- X509 *cert;
- X509_NAME *name;
- s->len = 0;
- cert = SSL_get_peer_certificate(c->ssl->connection);
- if (cert == NULL) {
- return NGX_OK;
- }
- name = X509_get_subject_name(cert);
- if (name == NULL) {
- X509_free(cert);
- return NGX_ERROR;
- }
- bio = BIO_new(BIO_s_mem());
- if (bio == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
- X509_free(cert);
- return NGX_ERROR;
- }
- if (X509_NAME_print_ex(bio, name, 0, XN_FLAG_RFC2253) < 0) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "X509_NAME_print_ex() failed");
- goto failed;
- }
- s->len = BIO_pending(bio);
- s->data = ngx_pnalloc(pool, s->len);
- if (s->data == NULL) {
- goto failed;
- }
- BIO_read(bio, s->data, s->len);
- BIO_free(bio);
- X509_free(cert);
- return NGX_OK;
- failed:
- BIO_free(bio);
- X509_free(cert);
- return NGX_ERROR;
- }
- ngx_int_t
- ngx_ssl_get_issuer_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- BIO *bio;
- X509 *cert;
- X509_NAME *name;
- s->len = 0;
- cert = SSL_get_peer_certificate(c->ssl->connection);
- if (cert == NULL) {
- return NGX_OK;
- }
- name = X509_get_issuer_name(cert);
- if (name == NULL) {
- X509_free(cert);
- return NGX_ERROR;
- }
- bio = BIO_new(BIO_s_mem());
- if (bio == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
- X509_free(cert);
- return NGX_ERROR;
- }
- if (X509_NAME_print_ex(bio, name, 0, XN_FLAG_RFC2253) < 0) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "X509_NAME_print_ex() failed");
- goto failed;
- }
- s->len = BIO_pending(bio);
- s->data = ngx_pnalloc(pool, s->len);
- if (s->data == NULL) {
- goto failed;
- }
- BIO_read(bio, s->data, s->len);
- BIO_free(bio);
- X509_free(cert);
- return NGX_OK;
- failed:
- BIO_free(bio);
- X509_free(cert);
- return NGX_ERROR;
- }
- ngx_int_t
- ngx_ssl_get_subject_dn_legacy(ngx_connection_t *c, ngx_pool_t *pool,
- ngx_str_t *s)
- {
- char *p;
- size_t len;
- X509 *cert;
- X509_NAME *name;
- s->len = 0;
- cert = SSL_get_peer_certificate(c->ssl->connection);
- if (cert == NULL) {
- return NGX_OK;
- }
- name = X509_get_subject_name(cert);
- if (name == NULL) {
- X509_free(cert);
- return NGX_ERROR;
- }
- p = X509_NAME_oneline(name, NULL, 0);
- if (p == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "X509_NAME_oneline() failed");
- X509_free(cert);
- return NGX_ERROR;
- }
- for (len = 0; p[len]; len++) { }
- s->len = len;
- s->data = ngx_pnalloc(pool, len);
- if (s->data == NULL) {
- OPENSSL_free(p);
- X509_free(cert);
- return NGX_ERROR;
- }
- ngx_memcpy(s->data, p, len);
- OPENSSL_free(p);
- X509_free(cert);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_issuer_dn_legacy(ngx_connection_t *c, ngx_pool_t *pool,
- ngx_str_t *s)
- {
- char *p;
- size_t len;
- X509 *cert;
- X509_NAME *name;
- s->len = 0;
- cert = SSL_get_peer_certificate(c->ssl->connection);
- if (cert == NULL) {
- return NGX_OK;
- }
- name = X509_get_issuer_name(cert);
- if (name == NULL) {
- X509_free(cert);
- return NGX_ERROR;
- }
- p = X509_NAME_oneline(name, NULL, 0);
- if (p == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "X509_NAME_oneline() failed");
- X509_free(cert);
- return NGX_ERROR;
- }
- for (len = 0; p[len]; len++) { }
- s->len = len;
- s->data = ngx_pnalloc(pool, len);
- if (s->data == NULL) {
- OPENSSL_free(p);
- X509_free(cert);
- return NGX_ERROR;
- }
- ngx_memcpy(s->data, p, len);
- OPENSSL_free(p);
- X509_free(cert);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_serial_number(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- size_t len;
- X509 *cert;
- BIO *bio;
- s->len = 0;
- cert = SSL_get_peer_certificate(c->ssl->connection);
- if (cert == NULL) {
- return NGX_OK;
- }
- bio = BIO_new(BIO_s_mem());
- if (bio == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
- X509_free(cert);
- return NGX_ERROR;
- }
- i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert));
- len = BIO_pending(bio);
- s->len = len;
- s->data = ngx_pnalloc(pool, len);
- if (s->data == NULL) {
- BIO_free(bio);
- X509_free(cert);
- return NGX_ERROR;
- }
- BIO_read(bio, s->data, len);
- BIO_free(bio);
- X509_free(cert);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_fingerprint(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- X509 *cert;
- unsigned int len;
- u_char buf[EVP_MAX_MD_SIZE];
- s->len = 0;
- cert = SSL_get_peer_certificate(c->ssl->connection);
- if (cert == NULL) {
- return NGX_OK;
- }
- if (!X509_digest(cert, EVP_sha1(), buf, &len)) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "X509_digest() failed");
- X509_free(cert);
- return NGX_ERROR;
- }
- s->len = 2 * len;
- s->data = ngx_pnalloc(pool, 2 * len);
- if (s->data == NULL) {
- X509_free(cert);
- return NGX_ERROR;
- }
- ngx_hex_dump(s->data, buf, len);
- X509_free(cert);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_client_verify(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- X509 *cert;
- long rc;
- const char *str;
- cert = SSL_get_peer_certificate(c->ssl->connection);
- if (cert == NULL) {
- ngx_str_set(s, "NONE");
- return NGX_OK;
- }
- X509_free(cert);
- rc = SSL_get_verify_result(c->ssl->connection);
- if (rc == X509_V_OK) {
- if (ngx_ssl_ocsp_get_status(c, &str) == NGX_OK) {
- ngx_str_set(s, "SUCCESS");
- return NGX_OK;
- }
- } else {
- str = X509_verify_cert_error_string(rc);
- }
- s->data = ngx_pnalloc(pool, sizeof("FAILED:") - 1 + ngx_strlen(str));
- if (s->data == NULL) {
- return NGX_ERROR;
- }
- s->len = ngx_sprintf(s->data, "FAILED:%s", str) - s->data;
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_client_v_start(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- BIO *bio;
- X509 *cert;
- size_t len;
- s->len = 0;
- cert = SSL_get_peer_certificate(c->ssl->connection);
- if (cert == NULL) {
- return NGX_OK;
- }
- bio = BIO_new(BIO_s_mem());
- if (bio == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
- X509_free(cert);
- return NGX_ERROR;
- }
- #if OPENSSL_VERSION_NUMBER > 0x10100000L
- ASN1_TIME_print(bio, X509_get0_notBefore(cert));
- #else
- ASN1_TIME_print(bio, X509_get_notBefore(cert));
- #endif
- len = BIO_pending(bio);
- s->len = len;
- s->data = ngx_pnalloc(pool, len);
- if (s->data == NULL) {
- BIO_free(bio);
- X509_free(cert);
- return NGX_ERROR;
- }
- BIO_read(bio, s->data, len);
- BIO_free(bio);
- X509_free(cert);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_client_v_end(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- BIO *bio;
- X509 *cert;
- size_t len;
- s->len = 0;
- cert = SSL_get_peer_certificate(c->ssl->connection);
- if (cert == NULL) {
- return NGX_OK;
- }
- bio = BIO_new(BIO_s_mem());
- if (bio == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "BIO_new() failed");
- X509_free(cert);
- return NGX_ERROR;
- }
- #if OPENSSL_VERSION_NUMBER > 0x10100000L
- ASN1_TIME_print(bio, X509_get0_notAfter(cert));
- #else
- ASN1_TIME_print(bio, X509_get_notAfter(cert));
- #endif
- len = BIO_pending(bio);
- s->len = len;
- s->data = ngx_pnalloc(pool, len);
- if (s->data == NULL) {
- BIO_free(bio);
- X509_free(cert);
- return NGX_ERROR;
- }
- BIO_read(bio, s->data, len);
- BIO_free(bio);
- X509_free(cert);
- return NGX_OK;
- }
- ngx_int_t
- ngx_ssl_get_client_v_remain(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
- {
- X509 *cert;
- time_t now, end;
- s->len = 0;
- cert = SSL_get_peer_certificate(c->ssl->connection);
- if (cert == NULL) {
- return NGX_OK;
- }
- #if OPENSSL_VERSION_NUMBER > 0x10100000L
- end = ngx_ssl_parse_time(X509_get0_notAfter(cert), c->log);
- #else
- end = ngx_ssl_parse_time(X509_get_notAfter(cert), c->log);
- #endif
- if (end == (time_t) NGX_ERROR) {
- X509_free(cert);
- return NGX_OK;
- }
- now = ngx_time();
- if (end < now + 86400) {
- ngx_str_set(s, "0");
- X509_free(cert);
- return NGX_OK;
- }
- s->data = ngx_pnalloc(pool, NGX_TIME_T_LEN);
- if (s->data == NULL) {
- X509_free(cert);
- return NGX_ERROR;
- }
- s->len = ngx_sprintf(s->data, "%T", (end - now) / 86400) - s->data;
- X509_free(cert);
- return NGX_OK;
- }
- static time_t
- ngx_ssl_parse_time(
- #if OPENSSL_VERSION_NUMBER > 0x10100000L
- const
- #endif
- ASN1_TIME *asn1time, ngx_log_t *log)
- {
- BIO *bio;
- char *value;
- size_t len;
- time_t time;
-
- bio = BIO_new(BIO_s_mem());
- if (bio == NULL) {
- ngx_ssl_error(NGX_LOG_ALERT, log, 0, "BIO_new() failed");
- return NGX_ERROR;
- }
-
- BIO_write(bio, "Tue ", sizeof("Tue ") - 1);
- ASN1_TIME_print(bio, asn1time);
- len = BIO_get_mem_data(bio, &value);
- time = ngx_parse_http_time((u_char *) value, len);
- BIO_free(bio);
- return time;
- }
- static void *
- ngx_openssl_create_conf(ngx_cycle_t *cycle)
- {
- ngx_openssl_conf_t *oscf;
- oscf = ngx_pcalloc(cycle->pool, sizeof(ngx_openssl_conf_t));
- if (oscf == NULL) {
- return NULL;
- }
-
- return oscf;
- }
- static char *
- ngx_openssl_engine(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
- {
- #ifndef OPENSSL_NO_ENGINE
- ngx_openssl_conf_t *oscf = conf;
- ENGINE *engine;
- ngx_str_t *value;
- if (oscf->engine) {
- return "is duplicate";
- }
- oscf->engine = 1;
- value = cf->args->elts;
- engine = ENGINE_by_id((char *) value[1].data);
- if (engine == NULL) {
- ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
- "ENGINE_by_id(\"%V\") failed", &value[1]);
- return NGX_CONF_ERROR;
- }
- if (ENGINE_set_default(engine, ENGINE_METHOD_ALL) == 0) {
- ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
- "ENGINE_set_default(\"%V\", ENGINE_METHOD_ALL) failed",
- &value[1]);
- ENGINE_free(engine);
- return NGX_CONF_ERROR;
- }
- ENGINE_free(engine);
- return NGX_CONF_OK;
- #else
- return "is not supported";
- #endif
- }
- static void
- ngx_openssl_exit(ngx_cycle_t *cycle)
- {
- #if OPENSSL_VERSION_NUMBER < 0x10100003L
- EVP_cleanup();
- #ifndef OPENSSL_NO_ENGINE
- ENGINE_cleanup();
- #endif
- #endif
- }
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