From b5bee6bf489d8c54a5e39baed4d578ada54c99bf Mon Sep 17 00:00:00 2001 From: Noam Postavsky Date: Sat, 15 Sep 2018 10:25:11 -0400 Subject: [PATCH] Fix build with gnutls versions 3.0 to 3.2 (Bug#32446) We previously used functions available only in 3.2+ for all 3.x versions. * src/gnutls.c [GNUTLS_VERSION_NUMBER < 0x030501]: Replace calls to gnutls_cipher_get_tag_size with 0. [GNUTLS_VERSION_NUMBER < 0x030200]: Alias gnutls_cipher_get_iv_size to gnutls_cipher_get_block_size, gnutls_digest_list to gnutls_mac_list, and gnutls_digest_get_name to gnutls_mac_get_name. [WINDOWSNT]: Adjust DLL function definitions and declarations accordingly. --- src/gnutls.c | 49 +++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 45 insertions(+), 4 deletions(-) diff --git a/src/gnutls.c b/src/gnutls.c index 461260e27f4..d0869ae9015 100644 --- a/src/gnutls.c +++ b/src/gnutls.c @@ -38,6 +38,23 @@ along with GNU Emacs. If not, see . */ So, require 3.5.1. */ #if GNUTLS_VERSION_NUMBER >= 0x030501 # define HAVE_GNUTLS_AEAD +#else +/* gnutls_cipher_get_tag_size was introduced in 3.2.0, but it's only + relevant for AEAD ciphers. */ +# define gnutls_cipher_get_tag_size(cipher) 0 +#endif + +#if GNUTLS_VERSION_NUMBER < 0x030200 +/* gnutls_cipher_get_iv_size was introduced in 3.2.0. For the ciphers + available in previous versions, block size is equivalent. */ +#define gnutls_cipher_get_iv_size(cipher) gnutls_cipher_get_block_size (cipher) +#endif + +#if GNUTLS_VERSION_NUMBER < 0x030202 +/* gnutls_digest_list and gnutls_digest_get_name were added in 3.2.2. + For previous versions, the mac algorithms are equivalent. */ +# define gnutls_digest_list() ((const gnutls_digest_algorithm_t *) gnutls_mac_list ()) +# define gnutls_digest_get_name(id) gnutls_mac_get_name ((gnutls_mac_algorithm_t) id) #endif /* gnutls_mac_get_nonce_size was added in GnuTLS 3.2.0, but was @@ -205,13 +222,21 @@ DEF_DLL_FN (const gnutls_mac_algorithm_t *, gnutls_mac_list, (void)); DEF_DLL_FN (size_t, gnutls_mac_get_nonce_size, (gnutls_mac_algorithm_t)); # endif DEF_DLL_FN (size_t, gnutls_mac_get_key_size, (gnutls_mac_algorithm_t)); +# ifndef gnutls_digest_list DEF_DLL_FN (const gnutls_digest_algorithm_t *, gnutls_digest_list, (void)); +# endif +# ifndef gnutls_digest_get_name DEF_DLL_FN (const char *, gnutls_digest_get_name, (gnutls_digest_algorithm_t)); +# endif DEF_DLL_FN (gnutls_cipher_algorithm_t *, gnutls_cipher_list, (void)); +# ifndef gnutls_cipher_get_iv_size DEF_DLL_FN (int, gnutls_cipher_get_iv_size, (gnutls_cipher_algorithm_t)); +# endif DEF_DLL_FN (size_t, gnutls_cipher_get_key_size, (gnutls_cipher_algorithm_t)); DEF_DLL_FN (int, gnutls_cipher_get_block_size, (gnutls_cipher_algorithm_t)); +# ifndef gnutls_cipher_get_tag_size DEF_DLL_FN (int, gnutls_cipher_get_tag_size, (gnutls_cipher_algorithm_t)); +# endif DEF_DLL_FN (int, gnutls_cipher_init, (gnutls_cipher_hd_t *, gnutls_cipher_algorithm_t, const gnutls_datum_t *, const gnutls_datum_t *)); @@ -339,13 +364,21 @@ init_gnutls_functions (void) LOAD_DLL_FN (library, gnutls_mac_get_nonce_size); # endif LOAD_DLL_FN (library, gnutls_mac_get_key_size); +# ifndef gnutls_digest_list LOAD_DLL_FN (library, gnutls_digest_list); +# endif +# ifndef gnutls_digest_get_name LOAD_DLL_FN (library, gnutls_digest_get_name); +# endif LOAD_DLL_FN (library, gnutls_cipher_list); +# ifndef gnutls_cipher_get_iv_size LOAD_DLL_FN (library, gnutls_cipher_get_iv_size); +# endif LOAD_DLL_FN (library, gnutls_cipher_get_key_size); LOAD_DLL_FN (library, gnutls_cipher_get_block_size); +# ifndef gnutls_cipher_get_tag_size LOAD_DLL_FN (library, gnutls_cipher_get_tag_size); +# endif LOAD_DLL_FN (library, gnutls_cipher_init); LOAD_DLL_FN (library, gnutls_cipher_set_iv); LOAD_DLL_FN (library, gnutls_cipher_encrypt2); @@ -455,13 +488,21 @@ init_gnutls_functions (void) # define gnutls_mac_get_nonce_size fn_gnutls_mac_get_nonce_size # endif # define gnutls_mac_get_key_size fn_gnutls_mac_get_key_size -# define gnutls_digest_list fn_gnutls_digest_list -# define gnutls_digest_get_name fn_gnutls_digest_get_name +# ifndef gnutls_digest_list +# define gnutls_digest_list fn_gnutls_digest_list +# endif +# ifndef gnutls_digest_get_name +# define gnutls_digest_get_name fn_gnutls_digest_get_name +# endif # define gnutls_cipher_list fn_gnutls_cipher_list -# define gnutls_cipher_get_iv_size fn_gnutls_cipher_get_iv_size +# ifndef gnutls_cipher_get_iv_size +# define gnutls_cipher_get_iv_size fn_gnutls_cipher_get_iv_size +# endif # define gnutls_cipher_get_key_size fn_gnutls_cipher_get_key_size # define gnutls_cipher_get_block_size fn_gnutls_cipher_get_block_size -# define gnutls_cipher_get_tag_size fn_gnutls_cipher_get_tag_size +# ifndef gnutls_cipher_get_tag_size +# define gnutls_cipher_get_tag_size fn_gnutls_cipher_get_tag_size +# endif # define gnutls_cipher_init fn_gnutls_cipher_init # define gnutls_cipher_set_iv fn_gnutls_cipher_set_iv # define gnutls_cipher_encrypt2 fn_gnutls_cipher_encrypt2 -- 2.39.2