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提交 43988d76 编写于 作者: S Steve French
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[CIFS] Use ecb des kernel crypto APIs instead of 

 local cifs functions (repost)

Using kernel crypto APIs for DES encryption during LM and NT hash generation
instead of local functions within cifs.
Source file smbdes.c is deleted sans four functions, one of which
uses ecb des functionality provided by kernel crypto APIs.

Remove function SMBOWFencrypt.

Add return codes to various functions such as calc_lanman_hash,
SMBencrypt, and SMBNTencrypt.  Includes fix noticed by Dan Carpenter.
Signed-off-by: NShirish Pargaonkar <shirishpargaonkar@gmail.com>
CC: Dan Carpenter <error27@gmail.com>
Acked-by: NJeff Layton <jlayton@redhat.com>
Signed-off-by: NSteve French <sfrench@us.ibm.com>
上级 25720873
隐藏空白更改
内联 并排
Showing with 109 addition and 455 deletion
fs/cifs/Kconfig
浏览文件 @ 43988d76
......@@ -7,6 +7,7 @@ config CIFS
select CRYPTO_MD5
select CRYPTO_HMAC
select CRYPTO_ARC4
select CRYPTO_DES
help
This is the client VFS module for the Common Internet File System
(CIFS) protocol which is the successor to the Server Message Block
......
fs/cifs/Makefile
浏览文件 @ 43988d76
......@@ -4,7 +4,7 @@
obj-$(CONFIG_CIFS) += cifs.o
cifs-y := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o \
link.o misc.o netmisc.o smbdes.o smbencrypt.o transport.o asn1.o \
link.o misc.o netmisc.o smbencrypt.o transport.o asn1.o \
cifs_unicode.o nterr.o xattr.o cifsencrypt.o \
readdir.o ioctl.o sess.o export.o
......
fs/cifs/cifsencrypt.c
浏览文件 @ 43988d76
......@@ -268,10 +268,11 @@ int setup_ntlm_response(struct cifsSesInfo *ses)
}
#ifdef CONFIG_CIFS_WEAK_PW_HASH
void calc_lanman_hash(const char *password, const char *cryptkey, bool encrypt,
int calc_lanman_hash(const char *password, const char *cryptkey, bool encrypt,
char *lnm_session_key)
{
int i;
int rc;
char password_with_pad[CIFS_ENCPWD_SIZE];
memset(password_with_pad, 0, CIFS_ENCPWD_SIZE);
......@@ -282,7 +283,7 @@ void calc_lanman_hash(const char *password, const char *cryptkey, bool encrypt,
memset(lnm_session_key, 0, CIFS_SESS_KEY_SIZE);
memcpy(lnm_session_key, password_with_pad,
CIFS_ENCPWD_SIZE);
return;
return 0;
}
/* calculate old style session key */
......@@ -299,10 +300,9 @@ void calc_lanman_hash(const char *password, const char *cryptkey, bool encrypt,
for (i = 0; i < CIFS_ENCPWD_SIZE; i++)
password_with_pad[i] = toupper(password_with_pad[i]);
SMBencrypt(password_with_pad, cryptkey, lnm_session_key);
rc = SMBencrypt(password_with_pad, cryptkey, lnm_session_key);
/* clear password before we return/free memory */
memset(password_with_pad, 0, CIFS_ENCPWD_SIZE);
return rc;
}
#endif /* CIFS_WEAK_PW_HASH */
......
fs/cifs/cifsproto.h
浏览文件 @ 43988d76
......@@ -384,7 +384,7 @@ extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
extern int calc_seckey(struct cifsSesInfo *);
#ifdef CONFIG_CIFS_WEAK_PW_HASH
extern void calc_lanman_hash(const char *password, const char *cryptkey,
extern int calc_lanman_hash(const char *password, const char *cryptkey,
bool encrypt, char *lnm_session_key);
#endif /* CIFS_WEAK_PW_HASH */
#ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
......@@ -430,9 +430,6 @@ extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr,
struct cifs_sb_info *cifs_sb, int xid);
extern int mdfour(unsigned char *, unsigned char *, int);
extern int E_md4hash(const unsigned char *passwd, unsigned char *p16);
extern void SMBencrypt(unsigned char *passwd, const unsigned char *c8,
unsigned char *p24);
extern void E_P16(unsigned char *p14, unsigned char *p16);
extern void E_P24(unsigned char *p21, const unsigned char *c8,
extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
unsigned char *p24);
#endif /* _CIFSPROTO_H */
fs/cifs/sess.c
浏览文件 @ 43988d76
......@@ -656,7 +656,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses,
* to use challenge/response method (i.e. Password bit is 1).
*/
calc_lanman_hash(ses->password, ses->server->cryptkey,
rc = calc_lanman_hash(ses->password, ses->server->cryptkey,
ses->server->secMode & SECMODE_PW_ENCRYPT ?
true : false, lnm_session_key);
......
fs/cifs/smbdes.c 已删除 100644 → 0
浏览文件 @ 25720873
/*
Unix SMB/Netbios implementation.
Version 1.9.
a partial implementation of DES designed for use in the
SMB authentication protocol
Copyright (C) Andrew Tridgell 1998
Modified by Steve French (sfrench@us.ibm.com) 2002,2004
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* NOTES:
This code makes no attempt to be fast! In fact, it is a very
slow implementation
This code is NOT a complete DES implementation. It implements only
the minimum necessary for SMB authentication, as used by all SMB
products (including every copy of Microsoft Windows95 ever sold)
In particular, it can only do a unchained forward DES pass. This
means it is not possible to use this code for encryption/decryption
of data, instead it is only useful as a "hash" algorithm.
There is no entry point into this code that allows normal DES operation.
I believe this means that this code does not come under ITAR
regulations but this is NOT a legal opinion. If you are concerned
about the applicability of ITAR regulations to this code then you
should confirm it for yourself (and maybe let me know if you come
up with a different answer to the one above)
*/
#include <linux/slab.h>
#define uchar unsigned char
static uchar perm1[56] = { 57, 49, 41, 33, 25, 17, 9,
1, 58, 50, 42, 34, 26, 18,
10, 2, 59, 51, 43, 35, 27,
19, 11, 3, 60, 52, 44, 36,
63, 55, 47, 39, 31, 23, 15,
7, 62, 54, 46, 38, 30, 22,
14, 6, 61, 53, 45, 37, 29,
21, 13, 5, 28, 20, 12, 4
};
static uchar perm2[48] = { 14, 17, 11, 24, 1, 5,
3, 28, 15, 6, 21, 10,
23, 19, 12, 4, 26, 8,
16, 7, 27, 20, 13, 2,
41, 52, 31, 37, 47, 55,
30, 40, 51, 45, 33, 48,
44, 49, 39, 56, 34, 53,
46, 42, 50, 36, 29, 32
};
static uchar perm3[64] = { 58, 50, 42, 34, 26, 18, 10, 2,
60, 52, 44, 36, 28, 20, 12, 4,
62, 54, 46, 38, 30, 22, 14, 6,
64, 56, 48, 40, 32, 24, 16, 8,
57, 49, 41, 33, 25, 17, 9, 1,
59, 51, 43, 35, 27, 19, 11, 3,
61, 53, 45, 37, 29, 21, 13, 5,
63, 55, 47, 39, 31, 23, 15, 7
};
static uchar perm4[48] = { 32, 1, 2, 3, 4, 5,
4, 5, 6, 7, 8, 9,
8, 9, 10, 11, 12, 13,
12, 13, 14, 15, 16, 17,
16, 17, 18, 19, 20, 21,
20, 21, 22, 23, 24, 25,
24, 25, 26, 27, 28, 29,
28, 29, 30, 31, 32, 1
};
static uchar perm5[32] = { 16, 7, 20, 21,
29, 12, 28, 17,
1, 15, 23, 26,
5, 18, 31, 10,
2, 8, 24, 14,
32, 27, 3, 9,
19, 13, 30, 6,
22, 11, 4, 25
};
static uchar perm6[64] = { 40, 8, 48, 16, 56, 24, 64, 32,
39, 7, 47, 15, 55, 23, 63, 31,
38, 6, 46, 14, 54, 22, 62, 30,
37, 5, 45, 13, 53, 21, 61, 29,
36, 4, 44, 12, 52, 20, 60, 28,
35, 3, 43, 11, 51, 19, 59, 27,
34, 2, 42, 10, 50, 18, 58, 26,
33, 1, 41, 9, 49, 17, 57, 25
};
static uchar sc[16] = { 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 };
static uchar sbox[8][4][16] = {
{{14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7},
{0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8},
{4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0},
{15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13} },
{{15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10},
{3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5},
{0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15},
{13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9} },
{{10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8},
{13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1},
{13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7},
{1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12} },
{{7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15},
{13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9},
{10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4},
{3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14} },
{{2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9},
{14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6},
{4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14},
{11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3} },
{{12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11},
{10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8},
{9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6},
{4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13} },
{{4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1},
{13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6},
{1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2},
{6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12} },
{{13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7},
{1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2},
{7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8},
{2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11} }
};
static void
permute(char *out, char *in, uchar *p, int n)
{
int i;
for (i = 0; i < n; i++)
out[i] = in[p[i] - 1];
}
static void
lshift(char *d, int count, int n)
{
char out[64];
int i;
for (i = 0; i < n; i++)
out[i] = d[(i + count) % n];
for (i = 0; i < n; i++)
d[i] = out[i];
}
static void
concat(char *out, char *in1, char *in2, int l1, int l2)
{
while (l1--)
*out++ = *in1++;
while (l2--)
*out++ = *in2++;
}
static void
xor(char *out, char *in1, char *in2, int n)
{
int i;
for (i = 0; i < n; i++)
out[i] = in1[i] ^ in2[i];
}
static void
dohash(char *out, char *in, char *key, int forw)
{
int i, j, k;
char *pk1;
char c[28];
char d[28];
char *cd;
char (*ki)[48];
char *pd1;
char l[32], r[32];
char *rl;
/* Have to reduce stack usage */
pk1 = kmalloc(56+56+64+64, GFP_KERNEL);
if (pk1 == NULL)
return;
ki = kmalloc(16*48, GFP_KERNEL);
if (ki == NULL) {
kfree(pk1);
return;
}
cd = pk1 + 56;
pd1 = cd + 56;
rl = pd1 + 64;
permute(pk1, key, perm1, 56);
for (i = 0; i < 28; i++)
c[i] = pk1[i];
for (i = 0; i < 28; i++)
d[i] = pk1[i + 28];
for (i = 0; i < 16; i++) {
lshift(c, sc[i], 28);
lshift(d, sc[i], 28);
concat(cd, c, d, 28, 28);
permute(ki[i], cd, perm2, 48);
}
permute(pd1, in, perm3, 64);
for (j = 0; j < 32; j++) {
l[j] = pd1[j];
r[j] = pd1[j + 32];
}
for (i = 0; i < 16; i++) {
char *er; /* er[48] */
char *erk; /* erk[48] */
char b[8][6];
char *cb; /* cb[32] */
char *pcb; /* pcb[32] */
char *r2; /* r2[32] */
er = kmalloc(48+48+32+32+32, GFP_KERNEL);
if (er == NULL) {
kfree(pk1);
kfree(ki);
return;
}
erk = er+48;
cb = erk+48;
pcb = cb+32;
r2 = pcb+32;
permute(er, r, perm4, 48);
xor(erk, er, ki[forw ? i : 15 - i], 48);
for (j = 0; j < 8; j++)
for (k = 0; k < 6; k++)
b[j][k] = erk[j * 6 + k];
for (j = 0; j < 8; j++) {
int m, n;
m = (b[j][0] << 1) | b[j][5];
n = (b[j][1] << 3) | (b[j][2] << 2) | (b[j][3] <<
1) | b[j][4];
for (k = 0; k < 4; k++)
b[j][k] =
(sbox[j][m][n] & (1 << (3 - k))) ? 1 : 0;
}
for (j = 0; j < 8; j++)
for (k = 0; k < 4; k++)
cb[j * 4 + k] = b[j][k];
permute(pcb, cb, perm5, 32);
xor(r2, l, pcb, 32);
for (j = 0; j < 32; j++)
l[j] = r[j];
for (j = 0; j < 32; j++)
r[j] = r2[j];
kfree(er);
}
concat(rl, r, l, 32, 32);
permute(out, rl, perm6, 64);
kfree(pk1);
kfree(ki);
}
static void
str_to_key(unsigned char *str, unsigned char *key)
{
int i;
key[0] = str[0] >> 1;
key[1] = ((str[0] & 0x01) << 6) | (str[1] >> 2);
key[2] = ((str[1] & 0x03) << 5) | (str[2] >> 3);
key[3] = ((str[2] & 0x07) << 4) | (str[3] >> 4);
key[4] = ((str[3] & 0x0F) << 3) | (str[4] >> 5);
key[5] = ((str[4] & 0x1F) << 2) | (str[5] >> 6);
key[6] = ((str[5] & 0x3F) << 1) | (str[6] >> 7);
key[7] = str[6] & 0x7F;
for (i = 0; i < 8; i++)
key[i] = (key[i] << 1);
}
static void
smbhash(unsigned char *out, const unsigned char *in, unsigned char *key,
int forw)
{
int i;
char *outb; /* outb[64] */
char *inb; /* inb[64] */
char *keyb; /* keyb[64] */
unsigned char key2[8];
outb = kmalloc(64 * 3, GFP_KERNEL);
if (outb == NULL)
return;
inb = outb + 64;
keyb = inb + 64;
str_to_key(key, key2);
for (i = 0; i < 64; i++) {
inb[i] = (in[i / 8] & (1 << (7 - (i % 8)))) ? 1 : 0;
keyb[i] = (key2[i / 8] & (1 << (7 - (i % 8)))) ? 1 : 0;
outb[i] = 0;
}
dohash(outb, inb, keyb, forw);
for (i = 0; i < 8; i++)
out[i] = 0;
for (i = 0; i < 64; i++) {
if (outb[i])
out[i / 8] |= (1 << (7 - (i % 8)));
}
kfree(outb);
}
void
E_P16(unsigned char *p14, unsigned char *p16)
{
unsigned char sp8[8] =
{ 0x4b, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 };
smbhash(p16, sp8, p14, 1);
smbhash(p16 + 8, sp8, p14 + 7, 1);
}
void
E_P24(unsigned char *p21, const unsigned char *c8, unsigned char *p24)
{
smbhash(p24, c8, p21, 1);
smbhash(p24 + 8, c8, p21 + 7, 1);
smbhash(p24 + 16, c8, p21 + 14, 1);
}
#if 0 /* currently unused */
static void
D_P16(unsigned char *p14, unsigned char *in, unsigned char *out)
{
smbhash(out, in, p14, 0);
smbhash(out + 8, in + 8, p14 + 7, 0);
}
static void
E_old_pw_hash(unsigned char *p14, unsigned char *in, unsigned char *out)
{
smbhash(out, in, p14, 1);
smbhash(out + 8, in + 8, p14 + 7, 1);
}
/* these routines are currently unneeded, but may be
needed later */
void
cred_hash1(unsigned char *out, unsigned char *in, unsigned char *key)
{
unsigned char buf[8];
smbhash(buf, in, key, 1);
smbhash(out, buf, key + 9, 1);
}
void
cred_hash2(unsigned char *out, unsigned char *in, unsigned char *key)
{
unsigned char buf[8];
static unsigned char key2[8];
smbhash(buf, in, key, 1);
key2[0] = key[7];
smbhash(out, buf, key2, 1);
}
void
cred_hash3(unsigned char *out, unsigned char *in, unsigned char *key, int forw)
{
static unsigned char key2[8];
smbhash(out, in, key, forw);
key2[0] = key[7];
smbhash(out + 8, in + 8, key2, forw);
}
#endif /* unneeded routines */
fs/cifs/smbencrypt.c
浏览文件 @ 43988d76
......@@ -47,6 +47,88 @@
#define SSVALX(buf,pos,val) (CVAL(buf,pos)=(val)&0xFF,CVAL(buf,pos+1)=(val)>>8)
#define SSVAL(buf,pos,val) SSVALX((buf),(pos),((__u16)(val)))
static void
str_to_key(unsigned char *str, unsigned char *key)
{
int i;
key[0] = str[0] >> 1;
key[1] = ((str[0] & 0x01) << 6) | (str[1] >> 2);
key[2] = ((str[1] & 0x03) << 5) | (str[2] >> 3);
key[3] = ((str[2] & 0x07) << 4) | (str[3] >> 4);
key[4] = ((str[3] & 0x0F) << 3) | (str[4] >> 5);
key[5] = ((str[4] & 0x1F) << 2) | (str[5] >> 6);
key[6] = ((str[5] & 0x3F) << 1) | (str[6] >> 7);
key[7] = str[6] & 0x7F;
for (i = 0; i < 8; i++)
key[i] = (key[i] << 1);
}
static int
smbhash(unsigned char *out, const unsigned char *in, unsigned char *key)
{
int rc;
unsigned char key2[8];
struct crypto_blkcipher *tfm_des;
struct scatterlist sgin, sgout;
struct blkcipher_desc desc;
str_to_key(key, key2);
tfm_des = crypto_alloc_blkcipher("ecb(des)", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm_des)) {
rc = PTR_ERR(tfm_des);
cERROR(1, "could not allocate des crypto API\n");
goto smbhash_err;
}
desc.tfm = tfm_des;
crypto_blkcipher_setkey(tfm_des, key2, 8);
sg_init_one(&sgin, in, 8);
sg_init_one(&sgout, out, 8);
rc = crypto_blkcipher_encrypt(&desc, &sgout, &sgin, 8);
if (rc) {
cERROR(1, "could not encrypt crypt key rc: %d\n", rc);
crypto_free_blkcipher(tfm_des);
goto smbhash_err;
}
smbhash_err:
return rc;
}
static int
E_P16(unsigned char *p14, unsigned char *p16)
{
int rc;
unsigned char sp8[8] =
{ 0x4b, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 };
rc = smbhash(p16, sp8, p14);
if (rc)
return rc;
rc = smbhash(p16 + 8, sp8, p14 + 7);
return rc;
}
static int
E_P24(unsigned char *p21, const unsigned char *c8, unsigned char *p24)
{
int rc;
rc = smbhash(p24, c8, p21);
if (rc)
return rc;
rc = smbhash(p24 + 8, c8, p21 + 7);
if (rc)
return rc;
rc = smbhash(p24 + 16, c8, p21 + 14);
return rc;
}
/* produce a md4 message digest from data of length n bytes */
int
mdfour(unsigned char *md4_hash, unsigned char *link_str, int link_len)
......@@ -87,40 +169,30 @@ mdfour(unsigned char *md4_hash, unsigned char *link_str, int link_len)
return rc;
}
/* Does the des encryption from the NT or LM MD4 hash. */
static void
SMBOWFencrypt(unsigned char passwd[16], const unsigned char *c8,
unsigned char p24[24])
{
unsigned char p21[21];
memset(p21, '\0', 21);
memcpy(p21, passwd, 16);
E_P24(p21, c8, p24);
}
/*
This implements the X/Open SMB password encryption
It takes a password, a 8 byte "crypt key" and puts 24 bytes of
encrypted password into p24 */
/* Note that password must be uppercased and null terminated */
void
int
SMBencrypt(unsigned char *passwd, const unsigned char *c8, unsigned char *p24)
{
unsigned char p14[15], p21[21];
int rc;
unsigned char p14[14], p16[16], p21[21];
memset(p21, '\0', 21);
memset(p14, '\0', 14);
strncpy((char *) p14, (char *) passwd, 14);
memset(p16, '\0', 16);
memset(p21, '\0', 21);
/* strupper((char *)p14); *//* BB at least uppercase the easy range */
E_P16(p14, p21);
memcpy(p14, passwd, 14);
rc = E_P16(p14, p16);
if (rc)
return rc;
SMBOWFencrypt(p21, c8, p24);
memcpy(p21, p16, 16);
rc = E_P24(p21, c8, p24);
memset(p14, 0, 15);
memset(p21, 0, 21);
return rc;
}
/* Routines for Windows NT MD4 Hash functions. */
......@@ -279,16 +351,18 @@ int
SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24)
{
int rc;
unsigned char p21[21];
unsigned char p16[16], p21[21];
memset(p16, '\0', 16);
memset(p21, '\0', 21);
rc = E_md4hash(passwd, p21);
rc = E_md4hash(passwd, p16);
if (rc) {
cFYI(1, "%s Can't generate NT hash, error: %d", __func__, rc);
return rc;
}
SMBOWFencrypt(p21, c8, p24);
memcpy(p21, p16, 16);
rc = E_P24(p21, c8, p24);
return rc;
}
......
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