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eeb0899e00
commit 9c1e8836edbbaf3656bc07437b59c04be034ac4e upstream. The crypto glue performed function prototype casting via macros to make indirect calls to assembly routines. Instead of performing casts at the call sites (which trips Control Flow Integrity prototype checking), switch each prototype to a common standard set of arguments which allows the removal of the existing macros. In order to keep pointer math unchanged, internal casting between u128 pointers and u8 pointers is added. Co-developed-by: João Moreira <joao.moreira@intel.com> Signed-off-by: João Moreira <joao.moreira@intel.com> Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Cc: Ard Biesheuvel <ardb@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef ASM_X86_CAMELLIA_H
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#define ASM_X86_CAMELLIA_H
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#include <crypto/b128ops.h>
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#include <linux/crypto.h>
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#include <linux/kernel.h>
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#define CAMELLIA_MIN_KEY_SIZE 16
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#define CAMELLIA_MAX_KEY_SIZE 32
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#define CAMELLIA_BLOCK_SIZE 16
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#define CAMELLIA_TABLE_BYTE_LEN 272
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#define CAMELLIA_PARALLEL_BLOCKS 2
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struct crypto_skcipher;
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struct camellia_ctx {
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u64 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
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u32 key_length;
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};
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struct camellia_xts_ctx {
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struct camellia_ctx tweak_ctx;
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struct camellia_ctx crypt_ctx;
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};
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extern int __camellia_setkey(struct camellia_ctx *cctx,
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const unsigned char *key,
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unsigned int key_len, u32 *flags);
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extern int xts_camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
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unsigned int keylen);
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/* regular block cipher functions */
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asmlinkage void __camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src,
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bool xor);
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asmlinkage void camellia_dec_blk(const void *ctx, u8 *dst, const u8 *src);
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/* 2-way parallel cipher functions */
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asmlinkage void __camellia_enc_blk_2way(const void *ctx, u8 *dst, const u8 *src,
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bool xor);
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asmlinkage void camellia_dec_blk_2way(const void *ctx, u8 *dst, const u8 *src);
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/* 16-way parallel cipher functions (avx/aes-ni) */
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asmlinkage void camellia_ecb_enc_16way(const void *ctx, u8 *dst, const u8 *src);
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asmlinkage void camellia_ecb_dec_16way(const void *ctx, u8 *dst, const u8 *src);
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asmlinkage void camellia_cbc_dec_16way(const void *ctx, u8 *dst, const u8 *src);
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asmlinkage void camellia_ctr_16way(const void *ctx, u8 *dst, const u8 *src,
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le128 *iv);
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asmlinkage void camellia_xts_enc_16way(const void *ctx, u8 *dst, const u8 *src,
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le128 *iv);
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asmlinkage void camellia_xts_dec_16way(const void *ctx, u8 *dst, const u8 *src,
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le128 *iv);
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static inline void camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src)
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{
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__camellia_enc_blk(ctx, dst, src, false);
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}
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static inline void camellia_enc_blk_xor(const void *ctx, u8 *dst, const u8 *src)
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{
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__camellia_enc_blk(ctx, dst, src, true);
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}
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static inline void camellia_enc_blk_2way(const void *ctx, u8 *dst,
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const u8 *src)
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{
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__camellia_enc_blk_2way(ctx, dst, src, false);
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}
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static inline void camellia_enc_blk_xor_2way(const void *ctx, u8 *dst,
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const u8 *src)
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{
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__camellia_enc_blk_2way(ctx, dst, src, true);
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}
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/* glue helpers */
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extern void camellia_decrypt_cbc_2way(const void *ctx, u8 *dst, const u8 *src);
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extern void camellia_crypt_ctr(const void *ctx, u8 *dst, const u8 *src,
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le128 *iv);
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extern void camellia_crypt_ctr_2way(const void *ctx, u8 *dst, const u8 *src,
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le128 *iv);
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extern void camellia_xts_enc(const void *ctx, u8 *dst, const u8 *src,
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le128 *iv);
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extern void camellia_xts_dec(const void *ctx, u8 *dst, const u8 *src,
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le128 *iv);
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#endif /* ASM_X86_CAMELLIA_H */
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