diff options
author | Steve French <stfrench@microsoft.com> | 2023-05-22 04:46:30 +0300 |
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committer | Steve French <stfrench@microsoft.com> | 2023-05-25 00:29:21 +0300 |
commit | 38c8a9a52082579090e34c033d439ed2cd1a462d (patch) | |
tree | ca6c3bf5b2b912f32735c1aa0a045cd21a47a205 /fs/smbfs_common/cifs_md4.c | |
parent | cb8b02fd6343228966324528adf920bfb8b8e681 (diff) | |
download | linux-38c8a9a52082579090e34c033d439ed2cd1a462d.tar.xz |
smb: move client and server files to common directory fs/smb
Move CIFS/SMB3 related client and server files (cifs.ko and ksmbd.ko
and helper modules) to new fs/smb subdirectory:
fs/cifs --> fs/smb/client
fs/ksmbd --> fs/smb/server
fs/smbfs_common --> fs/smb/common
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/smbfs_common/cifs_md4.c')
-rw-r--r-- | fs/smbfs_common/cifs_md4.c | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/fs/smbfs_common/cifs_md4.c b/fs/smbfs_common/cifs_md4.c deleted file mode 100644 index 50f78cfc6ce9..000000000000 --- a/fs/smbfs_common/cifs_md4.c +++ /dev/null @@ -1,197 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Cryptographic API. - * - * MD4 Message Digest Algorithm (RFC1320). - * - * Implementation derived from Andrew Tridgell and Steve French's - * CIFS MD4 implementation, and the cryptoapi implementation - * originally based on the public domain implementation written - * by Colin Plumb in 1993. - * - * Copyright (c) Andrew Tridgell 1997-1998. - * Modified by Steve French (sfrench@us.ibm.com) 2002 - * Copyright (c) Cryptoapi developers. - * Copyright (c) 2002 David S. Miller (davem@redhat.com) - * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> - * - */ -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/string.h> -#include <linux/types.h> -#include <asm/byteorder.h> -#include "md4.h" - -MODULE_LICENSE("GPL"); - -static inline u32 lshift(u32 x, unsigned int s) -{ - x &= 0xFFFFFFFF; - return ((x << s) & 0xFFFFFFFF) | (x >> (32 - s)); -} - -static inline u32 F(u32 x, u32 y, u32 z) -{ - return (x & y) | ((~x) & z); -} - -static inline u32 G(u32 x, u32 y, u32 z) -{ - return (x & y) | (x & z) | (y & z); -} - -static inline u32 H(u32 x, u32 y, u32 z) -{ - return x ^ y ^ z; -} - -#define ROUND1(a,b,c,d,k,s) (a = lshift(a + F(b,c,d) + k, s)) -#define ROUND2(a,b,c,d,k,s) (a = lshift(a + G(b,c,d) + k + (u32)0x5A827999,s)) -#define ROUND3(a,b,c,d,k,s) (a = lshift(a + H(b,c,d) + k + (u32)0x6ED9EBA1,s)) - -static void md4_transform(u32 *hash, u32 const *in) -{ - u32 a, b, c, d; - - a = hash[0]; - b = hash[1]; - c = hash[2]; - d = hash[3]; - - ROUND1(a, b, c, d, in[0], 3); - ROUND1(d, a, b, c, in[1], 7); - ROUND1(c, d, a, b, in[2], 11); - ROUND1(b, c, d, a, in[3], 19); - ROUND1(a, b, c, d, in[4], 3); - ROUND1(d, a, b, c, in[5], 7); - ROUND1(c, d, a, b, in[6], 11); - ROUND1(b, c, d, a, in[7], 19); - ROUND1(a, b, c, d, in[8], 3); - ROUND1(d, a, b, c, in[9], 7); - ROUND1(c, d, a, b, in[10], 11); - ROUND1(b, c, d, a, in[11], 19); - ROUND1(a, b, c, d, in[12], 3); - ROUND1(d, a, b, c, in[13], 7); - ROUND1(c, d, a, b, in[14], 11); - ROUND1(b, c, d, a, in[15], 19); - - ROUND2(a, b, c, d, in[0], 3); - ROUND2(d, a, b, c, in[4], 5); - ROUND2(c, d, a, b, in[8], 9); - ROUND2(b, c, d, a, in[12], 13); - ROUND2(a, b, c, d, in[1], 3); - ROUND2(d, a, b, c, in[5], 5); - ROUND2(c, d, a, b, in[9], 9); - ROUND2(b, c, d, a, in[13], 13); - ROUND2(a, b, c, d, in[2], 3); - ROUND2(d, a, b, c, in[6], 5); - ROUND2(c, d, a, b, in[10], 9); - ROUND2(b, c, d, a, in[14], 13); - ROUND2(a, b, c, d, in[3], 3); - ROUND2(d, a, b, c, in[7], 5); - ROUND2(c, d, a, b, in[11], 9); - ROUND2(b, c, d, a, in[15], 13); - - ROUND3(a, b, c, d, in[0], 3); - ROUND3(d, a, b, c, in[8], 9); - ROUND3(c, d, a, b, in[4], 11); - ROUND3(b, c, d, a, in[12], 15); - ROUND3(a, b, c, d, in[2], 3); - ROUND3(d, a, b, c, in[10], 9); - ROUND3(c, d, a, b, in[6], 11); - ROUND3(b, c, d, a, in[14], 15); - ROUND3(a, b, c, d, in[1], 3); - ROUND3(d, a, b, c, in[9], 9); - ROUND3(c, d, a, b, in[5], 11); - ROUND3(b, c, d, a, in[13], 15); - ROUND3(a, b, c, d, in[3], 3); - ROUND3(d, a, b, c, in[11], 9); - ROUND3(c, d, a, b, in[7], 11); - ROUND3(b, c, d, a, in[15], 15); - - hash[0] += a; - hash[1] += b; - hash[2] += c; - hash[3] += d; -} - -static inline void md4_transform_helper(struct md4_ctx *ctx) -{ - le32_to_cpu_array(ctx->block, ARRAY_SIZE(ctx->block)); - md4_transform(ctx->hash, ctx->block); -} - -int cifs_md4_init(struct md4_ctx *mctx) -{ - memset(mctx, 0, sizeof(struct md4_ctx)); - mctx->hash[0] = 0x67452301; - mctx->hash[1] = 0xefcdab89; - mctx->hash[2] = 0x98badcfe; - mctx->hash[3] = 0x10325476; - mctx->byte_count = 0; - - return 0; -} -EXPORT_SYMBOL_GPL(cifs_md4_init); - -int cifs_md4_update(struct md4_ctx *mctx, const u8 *data, unsigned int len) -{ - const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f); - - mctx->byte_count += len; - - if (avail > len) { - memcpy((char *)mctx->block + (sizeof(mctx->block) - avail), - data, len); - return 0; - } - - memcpy((char *)mctx->block + (sizeof(mctx->block) - avail), - data, avail); - - md4_transform_helper(mctx); - data += avail; - len -= avail; - - while (len >= sizeof(mctx->block)) { - memcpy(mctx->block, data, sizeof(mctx->block)); - md4_transform_helper(mctx); - data += sizeof(mctx->block); - len -= sizeof(mctx->block); - } - - memcpy(mctx->block, data, len); - - return 0; -} -EXPORT_SYMBOL_GPL(cifs_md4_update); - -int cifs_md4_final(struct md4_ctx *mctx, u8 *out) -{ - const unsigned int offset = mctx->byte_count & 0x3f; - char *p = (char *)mctx->block + offset; - int padding = 56 - (offset + 1); - - *p++ = 0x80; - if (padding < 0) { - memset(p, 0x00, padding + sizeof(u64)); - md4_transform_helper(mctx); - p = (char *)mctx->block; - padding = 56; - } - - memset(p, 0, padding); - mctx->block[14] = mctx->byte_count << 3; - mctx->block[15] = mctx->byte_count >> 29; - le32_to_cpu_array(mctx->block, (sizeof(mctx->block) - - sizeof(u64)) / sizeof(u32)); - md4_transform(mctx->hash, mctx->block); - cpu_to_le32_array(mctx->hash, ARRAY_SIZE(mctx->hash)); - memcpy(out, mctx->hash, sizeof(mctx->hash)); - memset(mctx, 0, sizeof(*mctx)); - - return 0; -} -EXPORT_SYMBOL_GPL(cifs_md4_final); |