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meson: add config setting to select between openssl and gcrypt

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This is not pretty, but it is supposed to be only a temporary measure.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2021-11-02 09:44:12 +01:00
parent ade99252e2
commit 57633d2376
3 changed files with 52 additions and 1 deletions
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20
meson.build
View File

@ -1523,6 +1523,18 @@ else
endif
conf.set10('ENABLE_REPART', have)
# We support one or the other. If gcrypt is available, we assume it's there to
# be used, and use it in preference.
opt = get_option('cryptolib')
if opt == 'openssl' and conf.get('HAVE_OPENSSL') == 0
error('openssl requested as the default cryptolib, but not available')
endif
conf.set10('PREFER_OPENSSL',
opt == 'openssl' or (opt == 'auto' and conf.get('HAVE_OPENSSL') == 1 and conf.get('HAVE_GCRYPT') == 0))
conf.set10('HAVE_OPENSSL_OR_GCRYPT',
conf.get('HAVE_OPENSSL') == 1 or conf.get('HAVE_GCRYPT') == 1)
lib_openssl_or_gcrypt = conf.get('PREFER_OPENSSL') == 1 ? libopenssl : libgcrypt
want_importd = get_option('importd')
if want_importd != 'false'
have = (conf.get('HAVE_LIBCURL') == 1 and
@ -4023,6 +4035,14 @@ else
found += 'static-libudev(@0@)'.format(static_libudev)
endif
if conf.get('HAVE_OPENSSL_OR_GCRYPT') == 1 and conf.get('PREFER_OPENSSL') == 1
found += 'cryptolib(openssl)'
elif conf.get('HAVE_OPENSSL_OR_GCRYPT') == 1
found += 'cryptolib(gcrypt)'
else
missing += 'cryptolib'
endif
if conf.get('DNS_OVER_TLS_USE_GNUTLS') == 1
found += 'DNS-over-TLS(gnutls)'
elif conf.get('DNS_OVER_TLS_USE_OPENSSL') == 1

2
meson_options.txt
View File

@ -380,6 +380,8 @@ option('gnutls', type : 'combo', choices : ['auto', 'true', 'false'],
description : 'gnutls support')
option('openssl', type : 'combo', choices : ['auto', 'true', 'false'],
description : 'openssl support')
option('cryptolib', type : 'combo', choices : ['auto', 'openssl', 'gcrypt'],
description : 'whether to use openssl or gcrypt where both are supported')
option('p11kit', type : 'combo', choices : ['auto', 'true', 'false'],
description : 'p11kit support')
option('libfido2', type : 'combo', choices : ['auto', 'true', 'false'],

31
src/shared/openssl-util.h
View File

@ -5,6 +5,8 @@
#if HAVE_OPENSSL
# include <openssl/bio.h>
# include <openssl/bn.h>
# include <openssl/err.h>
# include <openssl/evp.h>
# include <openssl/pkcs7.h>
# include <openssl/ssl.h>
@ -13,7 +15,15 @@
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(X509*, X509_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(X509_NAME*, X509_NAME_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(EVP_PKEY_CTX*, EVP_PKEY_CTX_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(EVP_PKEY*, EVP_PKEY_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(EVP_CIPHER_CTX*, EVP_CIPHER_CTX_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(RSA*, RSA_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(EC_KEY*, EC_KEY_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(EC_POINT*, EC_POINT_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(EC_GROUP*, EC_GROUP_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(BIGNUM*, BN_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(BN_CTX*, BN_CTX_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(ECDSA_SIG*, ECDSA_SIG_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(PKCS7*, PKCS7_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(SSL*, SSL_free, NULL);
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(BIO*, BIO_free, NULL);
@ -29,5 +39,24 @@ static inline void sk_X509_free_allp(STACK_OF(X509) **sk) {
int rsa_encrypt_bytes(EVP_PKEY *pkey, const void *decrypted_key, size_t decrypted_key_size, void **ret_encrypt_key, size_t *ret_encrypt_key_size);
int rsa_pkey_to_suitable_key_size(EVP_PKEY *pkey, size_t *ret_suitable_key_size);
#endif
#if PREFER_OPENSSL
/* The openssl definition */
typedef const EVP_MD* hash_md_t;
typedef const EVP_MD* hash_algorithm_t;
typedef int elliptic_curve_t;
typedef EVP_MD_CTX* hash_context_t;
# define OPENSSL_OR_GCRYPT(a, b) (a)
#elif HAVE_GCRYPT
# include <gcrypt.h>
/* The gcrypt definition */
typedef int hash_md_t;
typedef const char* hash_algorithm_t;
typedef const char* elliptic_curve_t;
typedef gcry_md_hd_t hash_context_t;
# define OPENSSL_OR_GCRYPT(a, b) (b)
#endif