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Commit 3c50b368 authored by Al Viro's avatar Al Viro Committed by Linus Torvalds
Browse files

fcrypt endianness misannotations 



Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 79901a97

crypto/fcrypt.c

+44 −44
Original line number Diff line number Diff line
@@ -51,7 +51,7 @@ 
#define ROUNDS 16



struct fcrypt_ctx {

	u32 sched[ROUNDS];

	__be32 sched[ROUNDS];

};



/* Rotate right two 32 bit numbers as a 56 bit number */
@@ -73,8 +73,8 @@ do { \ 
 * /afs/transarc.com/public/afsps/afs.rel31b.export-src/rxkad/sboxes.h

 */

#undef Z

#define Z(x) __constant_be32_to_cpu(x << 3)

static const u32 sbox0[256] = {

#define Z(x) __constant_cpu_to_be32(x << 3)

static const __be32 sbox0[256] = {

	Z(0xea), Z(0x7f), Z(0xb2), Z(0x64), Z(0x9d), Z(0xb0), Z(0xd9), Z(0x11),

	Z(0xcd), Z(0x86), Z(0x86), Z(0x91), Z(0x0a), Z(0xb2), Z(0x93), Z(0x06),

	Z(0x0e), Z(0x06), Z(0xd2), Z(0x65), Z(0x73), Z(0xc5), Z(0x28), Z(0x60),
@@ -110,8 +110,8 @@ static const u32 sbox0[256] = { 
};



#undef Z

#define Z(x) __constant_be32_to_cpu((x << 27) | (x >> 5))

static const u32 sbox1[256] = {

#define Z(x) __constant_cpu_to_be32((x << 27) | (x >> 5))

static const __be32 sbox1[256] = {

	Z(0x77), Z(0x14), Z(0xa6), Z(0xfe), Z(0xb2), Z(0x5e), Z(0x8c), Z(0x3e),

	Z(0x67), Z(0x6c), Z(0xa1), Z(0x0d), Z(0xc2), Z(0xa2), Z(0xc1), Z(0x85),

	Z(0x6c), Z(0x7b), Z(0x67), Z(0xc6), Z(0x23), Z(0xe3), Z(0xf2), Z(0x89),
@@ -147,8 +147,8 @@ static const u32 sbox1[256] = { 
};



#undef Z

#define Z(x) __constant_be32_to_cpu(x << 11)

static const u32 sbox2[256] = {

#define Z(x) __constant_cpu_to_be32(x << 11)

static const __be32 sbox2[256] = {

	Z(0xf0), Z(0x37), Z(0x24), Z(0x53), Z(0x2a), Z(0x03), Z(0x83), Z(0x86),

	Z(0xd1), Z(0xec), Z(0x50), Z(0xf0), Z(0x42), Z(0x78), Z(0x2f), Z(0x6d),

	Z(0xbf), Z(0x80), Z(0x87), Z(0x27), Z(0x95), Z(0xe2), Z(0xc5), Z(0x5d),
@@ -184,8 +184,8 @@ static const u32 sbox2[256] = { 
};



#undef Z

#define Z(x) __constant_be32_to_cpu(x << 19)

static const u32 sbox3[256] = {

#define Z(x) __constant_cpu_to_be32(x << 19)

static const __be32 sbox3[256] = {

	Z(0xa9), Z(0x2a), Z(0x48), Z(0x51), Z(0x84), Z(0x7e), Z(0x49), Z(0xe2),

	Z(0xb5), Z(0xb7), Z(0x42), Z(0x33), Z(0x7d), Z(0x5d), Z(0xa6), Z(0x12),

	Z(0x44), Z(0x48), Z(0x6d), Z(0x28), Z(0xaa), Z(0x20), Z(0x6d), Z(0x57),
@@ -225,7 +225,7 @@ static const u32 sbox3[256] = { 
 */

#define F_ENCRYPT(R, L, sched)						\

do {									\

	union lc4 { u32 l; u8 c[4]; } u;				\

	union lc4 { __be32 l; u8 c[4]; } u;				\

	u.l = sched ^ R;						\

	L ^= sbox0[u.c[0]] ^ sbox1[u.c[1]] ^ sbox2[u.c[2]] ^ sbox3[u.c[3]]; \

} while(0)
@@ -237,7 +237,7 @@ static void fcrypt_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) 
{

	const struct fcrypt_ctx *ctx = crypto_tfm_ctx(tfm);

	struct {

		u32 l, r;

		__be32 l, r;

	} X;



	memcpy(&X, src, sizeof(X));
@@ -269,7 +269,7 @@ static void fcrypt_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) 
{

	const struct fcrypt_ctx *ctx = crypto_tfm_ctx(tfm);

	struct {

		u32 l, r;

		__be32 l, r;

	} X;



	memcpy(&X, src, sizeof(X));
@@ -328,22 +328,22 @@ static int fcrypt_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key 
	k |= (*key) >> 1;



	/* Use lower 32 bits for schedule, rotate by 11 each round (16 times) */

	ctx->sched[0x0] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0x1] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0x2] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0x3] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0x4] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0x5] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0x6] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0x7] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0x8] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0x9] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0xa] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0xb] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0xc] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0xd] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0xe] = be32_to_cpu(k); ror56_64(k, 11);

	ctx->sched[0xf] = be32_to_cpu(k);

	ctx->sched[0x0] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0x1] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0x2] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0x3] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0x4] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0x5] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0x6] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0x7] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0x8] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0x9] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0xa] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0xb] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0xc] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0xd] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0xe] = cpu_to_be32(k); ror56_64(k, 11);

	ctx->sched[0xf] = cpu_to_be32(k);



	return 0;

#else
@@ -369,22 +369,22 @@ static int fcrypt_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key 
	lo |= (*key) >> 1;



	/* Use lower 32 bits for schedule, rotate by 11 each round (16 times) */

	ctx->sched[0x0] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0x1] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0x2] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0x3] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0x4] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0x5] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0x6] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0x7] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0x8] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0x9] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0xa] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0xb] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0xc] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0xd] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0xe] = be32_to_cpu(lo); ror56(hi, lo, 11);

	ctx->sched[0xf] = be32_to_cpu(lo);

	ctx->sched[0x0] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0x1] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0x2] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0x3] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0x4] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0x5] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0x6] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0x7] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0x8] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0x9] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0xa] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0xb] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0xc] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0xd] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0xe] = cpu_to_be32(lo); ror56(hi, lo, 11);

	ctx->sched[0xf] = cpu_to_be32(lo);

	return 0;

#endif

}