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Merge remote-tracking branch 'tor-gitlab/mr/598'

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This commit is contained in:
Nick Mathewson 2022-07-21 15:21:59 -04:00
commit da52d7206a
5 changed files with 23 additions and 15 deletions
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3
changes/issue40630 Normal file
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@ -0,0 +1,3 @@
o Minor features (portability, compilation):
- Use OpenSSL 1.1 APIs for LibreSSL, fixing LibreSSL 3.5 compatibility.
Fixes issue 40630; patch by Alex Xu (Hello71).

2
configure.ac
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@ -1022,7 +1022,7 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
AC_MSG_CHECKING([for OpenSSL < 1.0.1])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <openssl/opensslv.h>
#if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x1000100fL
#if OPENSSL_VERSION_NUMBER < 0x1000100fL
#error "too old"
#endif
]], [[]])],

22
src/lib/crypt_ops/compat_openssl.h
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@ -20,32 +20,36 @@
* \brief compatibility definitions for working with different openssl forks
**/
#if !defined(LIBRESSL_VERSION_NUMBER) && \
OPENSSL_VERSION_NUMBER < OPENSSL_V_SERIES(1,0,1)
#if OPENSSL_VERSION_NUMBER < OPENSSL_V_SERIES(1,0,1)
#error "We require OpenSSL >= 1.0.1"
#endif
#if OPENSSL_VERSION_NUMBER >= OPENSSL_V_SERIES(1,1,0) && \
! defined(LIBRESSL_VERSION_NUMBER)
#if OPENSSL_VERSION_NUMBER >= OPENSSL_V_SERIES(1,1,0)
/* We define this macro if we're trying to build with the majorly refactored
* API in OpenSSL 1.1 */
#define OPENSSL_1_1_API
#endif /* OPENSSL_VERSION_NUMBER >= OPENSSL_V_SERIES(1,1,0) && ... */
#ifndef OPENSSL_1_1_API
#define OpenSSL_version(v) SSLeay_version(v)
#define tor_OpenSSL_version_num() SSLeay()
/* LibreSSL claims to be OpenSSL 2.0 but lacks these OpenSSL 1.1 APIs */
#if !defined(OPENSSL_1_1_API) || defined(LIBRESSL_VERSION_NUMBER)
#define RAND_OpenSSL() RAND_SSLeay()
#define STATE_IS_SW_SERVER_HELLO(st) \
(((st) == SSL3_ST_SW_SRVR_HELLO_A) || \
((st) == SSL3_ST_SW_SRVR_HELLO_B))
#define OSSL_HANDSHAKE_STATE int
#define CONST_IF_OPENSSL_1_1_API
#else /* defined(OPENSSL_1_1_API) */
#define tor_OpenSSL_version_num() OpenSSL_version_num()
#else
#define STATE_IS_SW_SERVER_HELLO(st) \
((st) == TLS_ST_SW_SRVR_HELLO)
#define CONST_IF_OPENSSL_1_1_API const
#endif
/* OpenSSL 1.1 and LibreSSL both have these APIs */
#ifndef OPENSSL_1_1_API
#define OpenSSL_version(v) SSLeay_version(v)
#define tor_OpenSSL_version_num() SSLeay()
#else /* defined(OPENSSL_1_1_API) */
#define tor_OpenSSL_version_num() OpenSSL_version_num()
#endif /* !defined(OPENSSL_1_1_API) */
#endif /* defined(ENABLE_OPENSSL) */

3
src/lib/crypt_ops/crypto_openssl_mgt.h
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@ -54,8 +54,7 @@
#define DISABLE_ENGINES
#endif
#if OPENSSL_VERSION_NUMBER >= OPENSSL_VER(1,1,0,0,5) && \
!defined(LIBRESSL_VERSION_NUMBER)
#if OPENSSL_VERSION_NUMBER >= OPENSSL_VER(1,1,0,0,5)
/* OpenSSL as of 1.1.0pre4 has an "new" thread API, which doesn't require
* setting up various callbacks.
*

8
src/lib/crypt_ops/crypto_rsa_openssl.c
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@ -572,7 +572,9 @@ static bool
rsa_private_key_too_long(RSA *rsa, int max_bits)
{
const BIGNUM *n, *e, *p, *q, *d, *dmp1, *dmq1, *iqmp;
#ifdef OPENSSL_1_1_API
#if defined(OPENSSL_1_1_API) && \
(!defined(LIBRESSL_VERSION_NUMBER) || \
LIBRESSL_VERSION_NUMBER >= OPENSSL_V_SERIES(3,5,0))
#if OPENSSL_VERSION_NUMBER >= OPENSSL_V_SERIES(1,1,1)
n = RSA_get0_n(rsa);
@ -591,7 +593,7 @@ rsa_private_key_too_long(RSA *rsa, int max_bits)
if (RSA_bits(rsa) > max_bits)
return true;
#else /* !defined(OPENSSL_1_1_API) */
#else /* !defined(OPENSSL_1_1_API) && ... */
n = rsa->n;
e = rsa->e;
p = rsa->p;
@ -600,7 +602,7 @@ rsa_private_key_too_long(RSA *rsa, int max_bits)
dmp1 = rsa->dmp1;
dmq1 = rsa->dmq1;
iqmp = rsa->iqmp;
#endif /* defined(OPENSSL_1_1_API) */
#endif /* defined(OPENSSL_1_1_API) && ... */
if (n && BN_num_bits(n) > max_bits)
return true;