#include "TimConditional.h"
#ifdef TIM_CLIENT_PRESENT
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include "md4.h"
#include "SMBAuth.h"
#include <TimClient/Buffer.h>
typedef long KeysArray[32];
typedef struct EncryptBlk
{
unsigned long keyHi;
unsigned long keyLo;
} EncryptBlk;
#ifdef __cplusplus
extern "C" {
#endif
u_int16_t ByteSwapInt16(u_int16_t value);
void CStringToUnicode(char *cstr, u_int16_t *unicode);
void MD4Encode(unsigned char *output, unsigned char *input, unsigned int len);
void strnupper(char *str, int maxlen);
void DESEncode(void *str, void *data);
void des_set_odd_parity(unsigned char *key);
void str_to_key(unsigned char *str, unsigned char *key);
#ifdef __cplusplus
}
#endif
extern void desKeySched(EncryptBlk *, long *, short);
extern void desEncode(long *, char *);
extern void desDecode (long *, char *);
#define kDESVersion1 1
unsigned char odd_parity[256]={
1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14,
16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31,
32, 32, 35, 35, 37, 37, 38, 38, 41, 41, 42, 42, 44, 44, 47, 47,
49, 49, 50, 50, 52, 52, 55, 55, 56, 56, 59, 59, 61, 61, 62, 62,
64, 64, 67, 67, 69, 69, 70, 70, 73, 73, 74, 74, 76, 76, 79, 79,
81, 81, 82, 82, 84, 84, 87, 87, 88, 88, 91, 91, 93, 93, 94, 94,
97, 97, 98, 98, 100, 100, 103, 103, 104, 104, 107, 107, 109, 109, 110, 110,
112, 112, 115, 115, 117, 117, 118, 118, 121, 121, 122, 122, 124, 124, 127, 127,
128, 128, 131, 131, 133, 133, 134, 134, 137, 137, 138, 138, 140, 140, 143, 143,
145, 145, 146, 146, 148, 148, 151, 151, 152, 152, 155, 155, 157, 157, 158, 158,
161, 161, 162, 162, 164, 164, 167, 167, 168, 168, 171, 171, 173, 173, 174, 174,
176, 176, 179, 179, 181, 181, 182, 182, 185, 185, 186, 186, 188, 188, 191, 191,
193, 193, 194, 194, 196, 196, 199, 199, 200, 200, 203, 203, 205, 205, 206, 206,
208, 208, 211, 211, 213, 213, 214, 214, 217, 217, 218, 218, 220, 220, 223, 223,
224, 224, 227, 227, 229, 229, 230, 230, 233, 233, 234, 234, 236, 236, 239, 239,
241, 241, 242, 242, 244, 244, 247, 247, 248, 248, 251, 251, 253, 253, 254, 254};
void BinaryFromHexString(char * sourceString, unsigned int maxLen, unsigned char* outBinary)
{
Buffer* sourceBuff = bufferFromDataNoCopy(sourceString,maxLen);
Buffer* resultBuff = bufferFromHexBuffer(sourceBuff);
if (resultBuff != NULL)
{
memmove(outBinary,resultBuff->data,resultBuff->length);
}
bufferRelease(sourceBuff);
bufferRelease(resultBuff);
}
void CalculateP24(unsigned char *P21, unsigned char *C8, unsigned char *P24)
{
memcpy(P24, C8, 8);
memcpy(P24+8, C8, 8);
memcpy(P24+16, C8, 8);
DESEncode(P21, P24);
DESEncode(P21+7, P24+8);
DESEncode(P21+14, P24+16);
}
void CalculateSMBNTHash(const char *utf8Password, unsigned char outHash[16])
{
u_int16_t unicodeLen = 0;
u_int16_t unicodepwd[258] = {0};
char *password[128] = {0};
int passLen = 0;
if (utf8Password == NULL || outHash == NULL) return;
if (strlen(utf8Password) < 128)
passLen = strlen(utf8Password);
else
passLen = 128;
memmove(password, utf8Password, passLen);
unicodeLen = strlen((char *)password) * sizeof(u_int16_t);
CStringToUnicode((char *)password, unicodepwd);
MD4Encode(outHash, (unsigned char *)unicodepwd, unicodeLen);
}
void CalculateSMBLANManagerHash(const char *password, unsigned char outHash[16])
{
unsigned char S8[8] = {0x4B, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25};
int passLen = 0;
unsigned char P21[21] = {0};
unsigned char P14[14] = {0};
unsigned char *P16 = P21;
if (strlen(password) < 14)
passLen = strlen(password);
else
passLen = 14;
memmove(P14, password, passLen);
strnupper((char *)P14, 14);
memmove(P16, S8, 8);
memmove(P16+8, S8, 8);
DESEncode(P14, P16);
DESEncode(P14+7, P16+8);
memmove(outHash, P16, 16);
}
u_int16_t ByteSwapInt16(u_int16_t value)
{
u_int16_t mask = value;
mask <<= 8;
value >>= 8;
value |= mask;
return value;
}
void CStringToUnicode(char *cstr, u_int16_t *unicode)
{
int i;
u_int16_t val;
int len;
len = strlen(cstr);
for(i = 0; i < len; i++)
{
val = *cstr;
if (BYTE_ORDER == BIG_ENDIAN)
*unicode = ByteSwapInt16(val);
else
*unicode = val;
unicode++;
cstr++;
if (val == 0) break;
}
}
void MD4Encode(unsigned char *output, unsigned char *input, unsigned int len)
{
MD4_CTX context = {};
MD4Init (&context);
MD4Update (&context, (unsigned char *)input, len);
MD4Final (output, &context);
}
char* HexStringFromBinary(unsigned char * sourceString, unsigned int len)
{
char* resultString = NULL;
Buffer* sourceBuff = bufferFromDataNoCopy(sourceString,len);
Buffer* resultBuff = bufferToHexBuffer(sourceBuff);
resultString = bufferToString(resultBuff);
bufferRelease(sourceBuff);
bufferRelease(resultBuff);
return resultString;
}
void strnupper(char *str, int maxlen)
{
char *s = str;
while (*s && maxlen)
{
if (islower(*s))
*s = toupper(*s);
s++;
maxlen--;
}
}
void DESEncode(void *str, void *data)
{
KeysArray theKeyArray = {};
unsigned char key[8] = {};
str_to_key((unsigned char *)str, key);
desKeySched((EncryptBlk *)key, theKeyArray, kDESVersion1);
desEncode(theKeyArray, (char *)data);
}
void des_set_odd_parity(unsigned char *key)
{
int i;
for (i=0; i<8; i++)
key[i]=odd_parity[key[i]];
}
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);
}
des_set_odd_parity(key);
}
#endif