diff options
Diffstat (limited to 'src/lib/tls/tortls_openssl.c')
| -rw-r--r-- | src/lib/tls/tortls_openssl.c | 46 |
1 files changed, 34 insertions, 12 deletions
diff --git a/src/lib/tls/tortls_openssl.c b/src/lib/tls/tortls_openssl.c index c5031a00aa..5c92df1259 100644 --- a/src/lib/tls/tortls_openssl.c +++ b/src/lib/tls/tortls_openssl.c @@ -1,6 +1,6 @@ /* Copyright (c) 2003, Roger Dingledine. * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. - * Copyright (c) 2007-2019, The Tor Project, Inc. */ + * Copyright (c) 2007-2020, The Tor Project, Inc. */ /* See LICENSE for licensing information */ /** @@ -25,7 +25,7 @@ * <winsock.h> and mess things up, in at least some openssl versions. */ #include <winsock2.h> #include <ws2tcpip.h> -#endif +#endif /* defined(_WIN32) */ #include "lib/crypt_ops/crypto_cipher.h" #include "lib/crypt_ops/crypto_rand.h" @@ -37,7 +37,7 @@ /* Some versions of OpenSSL declare SSL_get_selected_srtp_profile twice in * srtp.h. Suppress the GCC warning so we can build with -Wredundant-decl. */ -DISABLE_GCC_WARNING(redundant-decls) +DISABLE_GCC_WARNING("-Wredundant-decls") #include <openssl/opensslv.h> @@ -54,7 +54,7 @@ DISABLE_GCC_WARNING(redundant-decls) #include <openssl/bn.h> #include <openssl/rsa.h> -ENABLE_GCC_WARNING(redundant-decls) +ENABLE_GCC_WARNING("-Wredundant-decls") #include "lib/tls/tortls.h" #include "lib/tls/tortls_st.h" @@ -245,10 +245,30 @@ tls_log_errors(tor_tls_t *tls, int severity, int domain, const char *doing) unsigned long err; while ((err = ERR_get_error()) != 0) { + if (tls) + tls->last_error = err; tor_tls_log_one_error(tls, err, severity, domain, doing); } } +/** + * Return a string representing more detail about the last error received + * on TLS. + * + * May return null if no error was found. + **/ +const char * +tor_tls_get_last_error_msg(const tor_tls_t *tls) +{ + IF_BUG_ONCE(!tls) { + return NULL; + } + if (tls->last_error == 0) { + return NULL; + } + return (const char*)ERR_reason_error_string(tls->last_error); +} + #define CATCH_SYSCALL 1 #define CATCH_ZERO 2 @@ -318,7 +338,7 @@ tor_tls_init(void) #else SSL_library_init(); SSL_load_error_strings(); -#endif +#endif /* defined(OPENSSL_1_1_API) */ #if (SIZEOF_VOID_P >= 8 && \ OPENSSL_VERSION_NUMBER >= OPENSSL_V_SERIES(1,0,1)) @@ -383,7 +403,7 @@ static const char SERVER_CIPHER_LIST[] = * conclude that it has no valid ciphers if it's running with TLS1.3. */ TLS1_3_TXT_AES_128_GCM_SHA256 ":" -#endif +#endif /* defined(TLS1_3_TXT_AES_128_GCM_SHA256) */ TLS1_TXT_DHE_RSA_WITH_AES_256_SHA ":" TLS1_TXT_DHE_RSA_WITH_AES_128_SHA; @@ -464,7 +484,9 @@ static const char UNRESTRICTED_SERVER_CIPHER_LIST[] = /** List of ciphers that clients should advertise, omitting items that * our OpenSSL doesn't know about. */ static const char CLIENT_CIPHER_LIST[] = -#include "ciphers.inc" +#ifndef COCCI +#include "lib/tls/ciphers.inc" +#endif /* Tell it not to use SSLv2 ciphers, so that it can select an SSLv3 version * of any cipher we say. */ "!SSLv2" @@ -657,7 +679,7 @@ tor_tls_context_new(crypto_pk_t *identity, unsigned int key_lifetime, if (r < 0) goto error; } -#else +#else /* !(defined(SSL_CTX_set1_groups_list) || defined(HAVE_SSL_CTX_SE...)) */ if (! is_client) { int nid; EC_KEY *ec_key; @@ -673,7 +695,7 @@ tor_tls_context_new(crypto_pk_t *identity, unsigned int key_lifetime, SSL_CTX_set_tmp_ecdh(result->ctx, ec_key); EC_KEY_free(ec_key); } -#endif +#endif /* defined(SSL_CTX_set1_groups_list) || defined(HAVE_SSL_CTX_SET1...) */ SSL_CTX_set_verify(result->ctx, SSL_VERIFY_PEER, always_accept_verify_cb); /* let us realloc bufs that we're writing from */ @@ -764,7 +786,7 @@ find_cipher_by_id(const SSL *ssl, const SSL_METHOD *m, uint16_t cipher) tor_assert((SSL_CIPHER_get_id(c) & 0xffff) == cipher); return c != NULL; } -#else /* !(defined(HAVE_SSL_CIPHER_FIND)) */ +#else /* !defined(HAVE_SSL_CIPHER_FIND) */ # if defined(HAVE_STRUCT_SSL_METHOD_ST_GET_CIPHER_BY_CHAR) if (m && m->get_cipher_by_char) { @@ -1062,7 +1084,7 @@ tor_tls_new(tor_socket_t sock, int isServer) /* We can't actually use TLS 1.3 until this bug is fixed. */ SSL_set_max_proto_version(result->ssl, TLS1_2_VERSION); } -#endif +#endif /* defined(SSL_CTRL_SET_MAX_PROTO_VERSION) */ if (!SSL_set_cipher_list(result->ssl, isServer ? SERVER_CIPHER_LIST : CLIENT_CIPHER_LIST)) { @@ -1715,7 +1737,7 @@ tor_tls_export_key_material,(tor_tls_t *tls, uint8_t *secrets_out, else return -1; } -#endif +#endif /* defined(TLS1_3_VERSION) */ return (r == 1) ? 0 : -1; } |