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linuxkm fixes:

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linuxkm/linuxkm_wc_port.h: add fallback definition for static_assert() to support legacy kernels.
wolfcrypt/src/aes.c: fix AESNI runtime failure/fallback logic in wc_AesXtsSetKeyNoInit().
This commit is contained in:
Daniel Pouzzner
2024-02-03 13:46:45 -06:00
parent 851f059023
commit 3a280e8295
2 changed files with 29 additions and 21 deletions
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11
linuxkm/linuxkm_wc_port.h
View File

@ -292,7 +292,7 @@
* AES_ENCRYPTION_AND_DECRYPTION on AES-XTS. * AES_ENCRYPTION_AND_DECRYPTION on AES-XTS.
*/ */
#ifndef WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS #ifndef WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS
#define WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS #define WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS
#endif #endif
#endif #endif
@ -822,6 +822,11 @@
#define realloc(ptr, newsize) krealloc(ptr, WC_LINUXKM_ROUND_UP_P_OF_2(newsize), GFP_KERNEL) #define realloc(ptr, newsize) krealloc(ptr, WC_LINUXKM_ROUND_UP_P_OF_2(newsize), GFP_KERNEL)
#endif #endif
#ifndef static_assert
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
#endif
#include <wolfssl/wolfcrypt/memory.h> #include <wolfssl/wolfcrypt/memory.h>
#ifdef WOLFSSL_TRACK_MEMORY #ifdef WOLFSSL_TRACK_MEMORY
@ -848,7 +853,7 @@
* them to be evaluable by the preprocessor, for use in sp_int.h. * them to be evaluable by the preprocessor, for use in sp_int.h.
*/ */
#if BITS_PER_LONG == 64 #if BITS_PER_LONG == 64
_Static_assert(sizeof(ULONG_MAX) == 8, static_assert(sizeof(ULONG_MAX) == 8,
"BITS_PER_LONG is 64, but ULONG_MAX is not."); "BITS_PER_LONG is 64, but ULONG_MAX is not.");
#undef UCHAR_MAX #undef UCHAR_MAX
@ -870,7 +875,7 @@
#elif BITS_PER_LONG == 32 #elif BITS_PER_LONG == 32
_Static_assert(sizeof(ULONG_MAX) == 4, static_assert(sizeof(ULONG_MAX) == 4,
"BITS_PER_LONG is 32, but ULONG_MAX is not."); "BITS_PER_LONG is 32, but ULONG_MAX is not.");
#undef UCHAR_MAX #undef UCHAR_MAX

39
wolfcrypt/src/aes.c
View File

@ -12356,32 +12356,35 @@ int wc_AesXtsSetKeyNoInit(XtsAes* aes, const byte* key, word32 len, int dir)
* conflicting _aesni status, but the AES-XTS asm implementations need * conflicting _aesni status, but the AES-XTS asm implementations need
* them to all be AESNI. If any aren't, disable AESNI on all. * them to all be AESNI. If any aren't, disable AESNI on all.
*/ */
if ((((dir == AES_ENCRYPTION) #ifdef WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS
#ifdef WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS if ((((dir == AES_ENCRYPTION) ||
|| (dir == AES_ENCRYPTION_AND_DECRYPTION) (dir == AES_ENCRYPTION_AND_DECRYPTION))
#endif && (aes->aes.use_aesni != aes->tweak.use_aesni))
) &&
(aes->aes.use_aesni != aes->tweak.use_aesni))
#ifdef WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS
|| ||
(((dir == AES_DECRYPTION) (((dir == AES_DECRYPTION) ||
|| (dir == AES_ENCRYPTION_AND_DECRYPTION)) && (dir == AES_ENCRYPTION_AND_DECRYPTION))
(aes->aes_decrypt.use_aesni != aes->tweak.use_aesni)) && (aes->aes_decrypt.use_aesni != aes->tweak.use_aesni)))
#endif
)
{ {
#ifdef WC_AES_C_DYNAMIC_FALLBACK #ifdef WC_AES_C_DYNAMIC_FALLBACK
aes->aes.use_aesni = 0; aes->aes.use_aesni = 0;
#ifdef WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS
aes->aes_decrypt.use_aesni = 0; aes->aes_decrypt.use_aesni = 0;
#endif
aes->tweak.use_aesni = 0; aes->tweak.use_aesni = 0;
#else #else
ret = SYSLIB_FAILED_E; ret = SYSLIB_FAILED_E;
#endif #endif
} }
#else /* !WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS */
if (aes->aes.use_aesni != aes->tweak.use_aesni) {
#ifdef WC_AES_C_DYNAMIC_FALLBACK
aes->aes.use_aesni = 0;
aes->tweak.use_aesni = 0;
#else
ret = SYSLIB_FAILED_E;
#endif
}
#endif /* !WC_AES_XTS_SUPPORT_SIMULTANEOUS_ENC_AND_DEC_KEYS */
} }
#endif #endif /* WOLFSSL_AESNI */
return ret; return ret;
} }