Merge branch 'master' into upstream

Conflicts:

	net/ieee80211/ieee80211_crypt_tkip.c
	net/ieee80211/ieee80211_crypt_wep.c

4 files changed, 437 insertions, 1 deletions

diff --git a/arch/i386/crypto/Makefile b/arch/i386/crypto/Makefile
index 103c353d0a63..3fd19af18e34 100644
--- a/arch/i386/crypto/Makefile
+++ b/arch/i386/crypto/Makefile
@@ -5,5 +5,8 @@
 # 
 
 obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o
+obj-$(CONFIG_CRYPTO_TWOFISH_586) += twofish-i586.o
 
 aes-i586-y := aes-i586-asm.o aes.o
+twofish-i586-y := twofish-i586-asm.o twofish.o
+
diff --git a/arch/i386/crypto/aes.c b/arch/i386/crypto/aes.c
index d3806daa3de3..49aad9397f10 100644
--- a/arch/i386/crypto/aes.c
+++ b/arch/i386/crypto/aes.c
@@ -379,12 +379,13 @@ static void gen_tabs(void)
 }
 
 static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
-                       unsigned int key_len, u32 *flags)
+                       unsigned int key_len)
 {
         int i;
         u32 ss[8];
         struct aes_ctx *ctx = crypto_tfm_ctx(tfm);
         const __le32 *key = (const __le32 *)in_key;
+        u32 *flags = &tfm->crt_flags;
 
         /* encryption schedule */
         
diff --git a/arch/i386/crypto/twofish-i586-asm.S b/arch/i386/crypto/twofish-i586-asm.S
new file mode 100644
index 000000000000..39b98ed2c1b9
--- /dev/null
+++ b/arch/i386/crypto/twofish-i586-asm.S
@@ -0,0 +1,335 @@
+/***************************************************************************
+*   Copyright (C) 2006 by Joachim Fritschi, <jfritschi@freenet.de>        *
+*                                                                         *
+*   This program is free software; you can redistribute it and/or modify  *
+*   it under the terms of the GNU General Public License as published by  *
+*   the Free Software Foundation; either version 2 of the License, or     *
+*   (at your option) any later version.                                   *
+*                                                                         *
+*   This program is distributed in the hope that it will be useful,       *
+*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+*   GNU General Public License for more details.                          *
+*                                                                         *
+*   You should have received a copy of the GNU General Public License     *
+*   along with this program; if not, write to the                         *
+*   Free Software Foundation, Inc.,                                       *
+*   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+***************************************************************************/
+
+.file "twofish-i586-asm.S"
+.text
+
+#include <asm/asm-offsets.h>
+
+/* return adress at 0 */
+
+#define in_blk    12  /* input byte array address parameter*/
+#define out_blk   8  /* output byte array address parameter*/
+#define tfm       4  /* Twofish context structure */
+
+#define a_offset        0
+#define b_offset        4
+#define c_offset        8
+#define d_offset        12
+
+/* Structure of the crypto context struct*/
+
+#define s0      0       /* S0 Array 256 Words each */
+#define s1      1024    /* S1 Array */
+#define s2      2048    /* S2 Array */
+#define s3      3072    /* S3 Array */
+#define w       4096    /* 8 whitening keys (word) */
+#define k       4128    /* key 1-32 ( word ) */
+
+/* define a few register aliases to allow macro substitution */
+
+#define R0D    %eax
+#define R0B    %al
+#define R0H    %ah
+
+#define R1D    %ebx
+#define R1B    %bl
+#define R1H    %bh
+
+#define R2D    %ecx
+#define R2B    %cl
+#define R2H    %ch
+
+#define R3D    %edx
+#define R3B    %dl
+#define R3H    %dh
+
+
+/* performs input whitening */
+#define input_whitening(src,context,offset)\
+        xor     w+offset(context),      src;
+
+/* performs input whitening */
+#define output_whitening(src,context,offset)\
+        xor     w+16+offset(context),   src;
+
+/*
+ * a input register containing a (rotated 16)
+ * b input register containing b
+ * c input register containing c
+ * d input register containing d (already rol $1)
+ * operations on a and b are interleaved to increase performance
+ */
+#define encrypt_round(a,b,c,d,round)\
+        push    d ## D;\
+        movzx   b ## B,         %edi;\
+        mov     s1(%ebp,%edi,4),d ## D;\
+        movzx   a ## B,         %edi;\
+        mov     s2(%ebp,%edi,4),%esi;\
+        movzx   b ## H,         %edi;\
+        ror     $16,            b ## D;\
+        xor     s2(%ebp,%edi,4),d ## D;\
+        movzx   a ## H,         %edi;\
+        ror     $16,            a ## D;\
+        xor     s3(%ebp,%edi,4),%esi;\
+        movzx   b ## B,         %edi;\
+        xor     s3(%ebp,%edi,4),d ## D;\
+        movzx   a ## B,         %edi;\
+        xor     (%ebp,%edi,4),  %esi;\
+        movzx   b ## H,         %edi;\
+        ror     $15,            b ## D;\
+        xor     (%ebp,%edi,4),  d ## D;\
+        movzx   a ## H,         %edi;\
+        xor     s1(%ebp,%edi,4),%esi;\
+        pop     %edi;\
+        add     d ## D,         %esi;\
+        add     %esi,           d ## D;\
+        add     k+round(%ebp),  %esi;\
+        xor     %esi,           c ## D;\
+        rol     $15,            c ## D;\
+        add     k+4+round(%ebp),d ## D;\
+        xor     %edi,           d ## D;
+
+/*
+ * a input register containing a (rotated 16)
+ * b input register containing b
+ * c input register containing c
+ * d input register containing d (already rol $1)
+ * operations on a and b are interleaved to increase performance
+ * last round has different rotations for the output preparation
+ */
+#define encrypt_last_round(a,b,c,d,round)\
+        push    d ## D;\
+        movzx   b ## B,         %edi;\
+        mov     s1(%ebp,%edi,4),d ## D;\
+        movzx   a ## B,         %edi;\
+        mov     s2(%ebp,%edi,4),%esi;\
+        movzx   b ## H,         %edi;\
+        ror     $16,            b ## D;\
+        xor     s2(%ebp,%edi,4),d ## D;\
+        movzx   a ## H,         %edi;\
+        ror     $16,            a ## D;\
+        xor     s3(%ebp,%edi,4),%esi;\
+        movzx   b ## B,         %edi;\
+        xor     s3(%ebp,%edi,4),d ## D;\
+        movzx   a ## B,         %edi;\
+        xor     (%ebp,%edi,4),  %esi;\
+        movzx   b ## H,         %edi;\
+        ror     $16,            b ## D;\
+        xor     (%ebp,%edi,4),  d ## D;\
+        movzx   a ## H,         %edi;\
+        xor     s1(%ebp,%edi,4),%esi;\
+        pop     %edi;\
+        add     d ## D,         %esi;\
+        add     %esi,           d ## D;\
+        add     k+round(%ebp),  %esi;\
+        xor     %esi,           c ## D;\
+        ror     $1,             c ## D;\
+        add     k+4+round(%ebp),d ## D;\
+        xor     %edi,           d ## D;
+
+/*
+ * a input register containing a
+ * b input register containing b (rotated 16)
+ * c input register containing c
+ * d input register containing d (already rol $1)
+ * operations on a and b are interleaved to increase performance
+ */
+#define decrypt_round(a,b,c,d,round)\
+        push    c ## D;\
+        movzx   a ## B,         %edi;\
+        mov     (%ebp,%edi,4),  c ## D;\
+        movzx   b ## B,         %edi;\
+        mov     s3(%ebp,%edi,4),%esi;\
+        movzx   a ## H,         %edi;\
+        ror     $16,            a ## D;\
+        xor     s1(%ebp,%edi,4),c ## D;\
+        movzx   b ## H,         %edi;\
+        ror     $16,            b ## D;\
+        xor     (%ebp,%edi,4),  %esi;\
+        movzx   a ## B,         %edi;\
+        xor     s2(%ebp,%edi,4),c ## D;\
+        movzx   b ## B,         %edi;\
+        xor     s1(%ebp,%edi,4),%esi;\
+        movzx   a ## H,         %edi;\
+        ror     $15,            a ## D;\
+        xor     s3(%ebp,%edi,4),c ## D;\
+        movzx   b ## H,         %edi;\
+        xor     s2(%ebp,%edi,4),%esi;\
+        pop     %edi;\
+        add     %esi,           c ## D;\
+        add     c ## D,         %esi;\
+        add     k+round(%ebp),  c ## D;\
+        xor     %edi,           c ## D;\
+        add     k+4+round(%ebp),%esi;\
+        xor     %esi,           d ## D;\
+        rol     $15,            d ## D;
+
+/*
+ * a input register containing a
+ * b input register containing b (rotated 16)
+ * c input register containing c
+ * d input register containing d (already rol $1)
+ * operations on a and b are interleaved to increase performance
+ * last round has different rotations for the output preparation
+ */
+#define decrypt_last_round(a,b,c,d,round)\
+        push    c ## D;\
+        movzx   a ## B,         %edi;\
+        mov     (%ebp,%edi,4),  c ## D;\
+        movzx   b ## B,         %edi;\
+        mov     s3(%ebp,%edi,4),%esi;\
+        movzx   a ## H,         %edi;\
+        ror     $16,            a ## D;\
+        xor     s1(%ebp,%edi,4),c ## D;\
+        movzx   b ## H,         %edi;\
+        ror     $16,            b ## D;\
+        xor     (%ebp,%edi,4),  %esi;\
+        movzx   a ## B,         %edi;\
+        xor     s2(%ebp,%edi,4),c ## D;\
+        movzx   b ## B,         %edi;\
+        xor     s1(%ebp,%edi,4),%esi;\
+        movzx   a ## H,         %edi;\
+        ror     $16,            a ## D;\
+        xor     s3(%ebp,%edi,4),c ## D;\
+        movzx   b ## H,         %edi;\
+        xor     s2(%ebp,%edi,4),%esi;\
+        pop     %edi;\
+        add     %esi,           c ## D;\
+        add     c ## D,         %esi;\
+        add     k+round(%ebp),  c ## D;\
+        xor     %edi,           c ## D;\
+        add     k+4+round(%ebp),%esi;\
+        xor     %esi,           d ## D;\
+        ror     $1,             d ## D;
+
+.align 4
+.global twofish_enc_blk
+.global twofish_dec_blk
+
+twofish_enc_blk:
+        push    %ebp                    /* save registers according to calling convention*/
+        push    %ebx
+        push    %esi
+        push    %edi
+
+        mov     tfm + 16(%esp), %ebp    /* abuse the base pointer: set new base bointer to the crypto tfm */
+        add     $crypto_tfm_ctx_offset, %ebp    /* ctx adress */
+        mov     in_blk+16(%esp),%edi    /* input adress in edi */
+
+        mov     (%edi),         %eax
+        mov     b_offset(%edi), %ebx
+        mov     c_offset(%edi), %ecx
+        mov     d_offset(%edi), %edx
+        input_whitening(%eax,%ebp,a_offset)
+        ror     $16,    %eax
+        input_whitening(%ebx,%ebp,b_offset)
+        input_whitening(%ecx,%ebp,c_offset)
+        input_whitening(%edx,%ebp,d_offset)
+        rol     $1,     %edx
+
+        encrypt_round(R0,R1,R2,R3,0);
+        encrypt_round(R2,R3,R0,R1,8);
+        encrypt_round(R0,R1,R2,R3,2*8);
+        encrypt_round(R2,R3,R0,R1,3*8);
+        encrypt_round(R0,R1,R2,R3,4*8);
+        encrypt_round(R2,R3,R0,R1,5*8);
+        encrypt_round(R0,R1,R2,R3,6*8);
+        encrypt_round(R2,R3,R0,R1,7*8);
+        encrypt_round(R0,R1,R2,R3,8*8);
+        encrypt_round(R2,R3,R0,R1,9*8);
+        encrypt_round(R0,R1,R2,R3,10*8);
+        encrypt_round(R2,R3,R0,R1,11*8);
+        encrypt_round(R0,R1,R2,R3,12*8);
+        encrypt_round(R2,R3,R0,R1,13*8);
+        encrypt_round(R0,R1,R2,R3,14*8);
+        encrypt_last_round(R2,R3,R0,R1,15*8);
+
+        output_whitening(%eax,%ebp,c_offset)
+        output_whitening(%ebx,%ebp,d_offset)
+        output_whitening(%ecx,%ebp,a_offset)
+        output_whitening(%edx,%ebp,b_offset)
+        mov     out_blk+16(%esp),%edi;
+        mov     %eax,           c_offset(%edi)
+        mov     %ebx,           d_offset(%edi)
+        mov     %ecx,           (%edi)
+        mov     %edx,           b_offset(%edi)
+
+        pop     %edi
+        pop     %esi
+        pop     %ebx
+        pop     %ebp
+        mov     $1,     %eax
+        ret
+
+twofish_dec_blk:
+        push    %ebp                    /* save registers according to calling convention*/
+        push    %ebx
+        push    %esi
+        push    %edi
+
+
+        mov     tfm + 16(%esp), %ebp    /* abuse the base pointer: set new base bointer to the crypto tfm */
+        add     $crypto_tfm_ctx_offset, %ebp    /* ctx adress */
+        mov     in_blk+16(%esp),%edi    /* input adress in edi */
+
+        mov     (%edi),         %eax
+        mov     b_offset(%edi), %ebx
+        mov     c_offset(%edi), %ecx
+        mov     d_offset(%edi), %edx
+        output_whitening(%eax,%ebp,a_offset)
+        output_whitening(%ebx,%ebp,b_offset)
+        ror     $16,    %ebx
+        output_whitening(%ecx,%ebp,c_offset)
+        output_whitening(%edx,%ebp,d_offset)
+        rol     $1,     %ecx
+
+        decrypt_round(R0,R1,R2,R3,15*8);
+        decrypt_round(R2,R3,R0,R1,14*8);
+        decrypt_round(R0,R1,R2,R3,13*8);
+        decrypt_round(R2,R3,R0,R1,12*8);
+        decrypt_round(R0,R1,R2,R3,11*8);
+        decrypt_round(R2,R3,R0,R1,10*8);
+        decrypt_round(R0,R1,R2,R3,9*8);
+        decrypt_round(R2,R3,R0,R1,8*8);
+        decrypt_round(R0,R1,R2,R3,7*8);
+        decrypt_round(R2,R3,R0,R1,6*8);
+        decrypt_round(R0,R1,R2,R3,5*8);
+        decrypt_round(R2,R3,R0,R1,4*8);
+        decrypt_round(R0,R1,R2,R3,3*8);
+        decrypt_round(R2,R3,R0,R1,2*8);
+        decrypt_round(R0,R1,R2,R3,1*8);
+        decrypt_last_round(R2,R3,R0,R1,0);
+
+        input_whitening(%eax,%ebp,c_offset)
+        input_whitening(%ebx,%ebp,d_offset)
+        input_whitening(%ecx,%ebp,a_offset)
+        input_whitening(%edx,%ebp,b_offset)
+        mov     out_blk+16(%esp),%edi;
+        mov     %eax,           c_offset(%edi)
+        mov     %ebx,           d_offset(%edi)
+        mov     %ecx,           (%edi)
+        mov     %edx,           b_offset(%edi)
+
+        pop     %edi
+        pop     %esi
+        pop     %ebx
+        pop     %ebp
+        mov     $1,     %eax
+        ret
diff --git a/arch/i386/crypto/twofish.c b/arch/i386/crypto/twofish.c
new file mode 100644
index 000000000000..e3004dfe9c7a
--- /dev/null
+++ b/arch/i386/crypto/twofish.c
@@ -0,0 +1,97 @@
+/*
+ *  Glue Code for optimized 586 assembler version of TWOFISH
+ *
+ * Originally Twofish for GPG
+ * By Matthew Skala <mskala@ansuz.sooke.bc.ca>, July 26, 1998
+ * 256-bit key length added March 20, 1999
+ * Some modifications to reduce the text size by Werner Koch, April, 1998
+ * Ported to the kerneli patch by Marc Mutz <Marc@Mutz.com>
+ * Ported to CryptoAPI by Colin Slater <hoho@tacomeat.net>
+ *
+ * The original author has disclaimed all copyright interest in this
+ * code and thus put it in the public domain. The subsequent authors
+ * have put this under the GNU General Public License.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ * USA
+ *
+ * This code is a "clean room" implementation, written from the paper
+ * _Twofish: A 128-Bit Block Cipher_ by Bruce Schneier, John Kelsey,
+ * Doug Whiting, David Wagner, Chris Hall, and Niels Ferguson, available
+ * through http://www.counterpane.com/twofish.html
+ *
+ * For background information on multiplication in finite fields, used for
+ * the matrix operations in the key schedule, see the book _Contemporary
+ * Abstract Algebra_ by Joseph A. Gallian, especially chapter 22 in the
+ * Third Edition.
+ */
+
+#include <crypto/twofish.h>
+#include <linux/crypto.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+
+asmlinkage void twofish_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
+asmlinkage void twofish_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
+
+static void twofish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+        twofish_enc_blk(tfm, dst, src);
+}
+
+static void twofish_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+        twofish_dec_blk(tfm, dst, src);
+}
+
+static struct crypto_alg alg = {
+        .cra_name               =       "twofish",
+        .cra_driver_name        =       "twofish-i586",
+        .cra_priority           =       200,
+        .cra_flags              =       CRYPTO_ALG_TYPE_CIPHER,
+        .cra_blocksize          =       TF_BLOCK_SIZE,
+        .cra_ctxsize            =       sizeof(struct twofish_ctx),
+        .cra_alignmask          =       3,
+        .cra_module             =       THIS_MODULE,
+        .cra_list               =       LIST_HEAD_INIT(alg.cra_list),
+        .cra_u                  =       {
+                .cipher = {
+                        .cia_min_keysize        =       TF_MIN_KEY_SIZE,
+                        .cia_max_keysize        =       TF_MAX_KEY_SIZE,
+                        .cia_setkey             =       twofish_setkey,
+                        .cia_encrypt            =       twofish_encrypt,
+                        .cia_decrypt            =       twofish_decrypt
+                }
+        }
+};
+
+static int __init init(void)
+{
+        return crypto_register_alg(&alg);
+}
+
+static void __exit fini(void)
+{
+        crypto_unregister_alg(&alg);
+}
+
+module_init(init);
+module_exit(fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION ("Twofish Cipher Algorithm, i586 asm optimized");
+MODULE_ALIAS("twofish");