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/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
/*
* This file provides the necessary methods for authenticating with
* Microsoft's Secure Password Authentication.
* All the code used here was torn by Marc Prud'hommeaux out of the
* Samba project (by Andrew Tridgell, Jeremy Allison, and others).
*/
/* December 2004: The spa_base64_to_bits() function has no length checking in
it. I have added a check. PH */
/* It seems that some systems have existing but different definitions of some
of the following types. I received a complaint about "int16" causing
compilation problems. So I (PH) have renamed them all, to be on the safe side.
typedef signed short int16;
typedef unsigned short uint16;
typedef unsigned uint32;
typedef unsigned char uint8;
*/
typedef signed short int16x;
typedef unsigned short uint16x;
typedef unsigned uint32x;
typedef unsigned char uint8x;
typedef struct
{
uint16x len;
uint16x maxlen;
uint32x offset;
} SPAStrHeader;
typedef struct
{
char ident[8];
uint32x msgType;
SPAStrHeader uDomain;
uint32x flags;
uint8x challengeData[8];
uint8x reserved[8];
SPAStrHeader emptyString;
uint8x buffer[1024];
uint32x bufIndex;
} SPAAuthChallenge;
typedef struct
{
char ident[8];
uint32x msgType;
uint32x flags;
SPAStrHeader user;
SPAStrHeader domain;
uint8x buffer[1024];
uint32x bufIndex;
} SPAAuthRequest;
typedef struct
{
char ident[8];
uint32x msgType;
SPAStrHeader lmResponse;
SPAStrHeader ntResponse;
SPAStrHeader uDomain;
SPAStrHeader uUser;
SPAStrHeader uWks;
SPAStrHeader sessionKey;
uint32x flags;
uint8x buffer[1024];
uint32x bufIndex;
} SPAAuthResponse;
#define spa_request_length(ptr) (((ptr)->buffer - (uint8x*)(ptr)) + (ptr)->bufIndex)
void spa_bits_to_base64 (unsigned char *, const unsigned char *, int);
int spa_base64_to_bits(char *, int, const char *);
void spa_build_auth_response (SPAAuthChallenge *challenge,
SPAAuthResponse *response, char *user, char *password);
void spa_build_auth_request (SPAAuthRequest *request, char *user,
char *domain);
extern void spa_smb_encrypt (unsigned char * passwd, unsigned char * c8,
unsigned char * p24);
extern void spa_smb_nt_encrypt (unsigned char * passwd, unsigned char * c8,
unsigned char * p24);
extern char *unicodeToString(char *p, size_t len);
extern void spa_build_auth_challenge(SPAAuthRequest *, SPAAuthChallenge *);
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