src/src/auths/auth-spa.h

   1 /* $Cambridge: exim/src/src/auths/auth-spa.h,v 1.1 2004/10/07 13:10:00 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /*
   8  * This file provides the necessary methods for authenticating with
   9  * Microsoft's Secure Password Authentication.
  10
  11  * All the code used here was torn by Marc Prud'hommeaux out of the
  12  * Samba project (by Andrew Tridgell, Jeremy Allison, and others).
  13  */
  14
  15 /* It seems that some systems have existing but different definitions of some
  16 of the following types. I received a complaint about "int16" causing
  17 compilation problems. So I (PH) have renamed them all, to be on the safe side.
  18
  19 typedef signed short int16;
  20 typedef unsigned short uint16;
  21 typedef unsigned uint32;
  22 typedef unsigned char  uint8;
  23 */
  24
  25 typedef signed short int16x;
  26 typedef unsigned short uint16x;
  27 typedef unsigned uint32x;
  28 typedef unsigned char  uint8x;
  29
  30 typedef struct
  31 {
  32        uint16x         len;
  33        uint16x         maxlen;
  34        uint32x         offset;
  35 } SPAStrHeader;
  36
  37 typedef struct
  38 {
  39        char            ident[8];
  40        uint32x         msgType;
  41        SPAStrHeader    uDomain;
  42        uint32x         flags;
  43        uint8x          challengeData[8];
  44        uint8x          reserved[8];
  45        SPAStrHeader    emptyString;
  46        uint8x          buffer[1024];
  47        uint32x         bufIndex;
  48 } SPAAuthChallenge;
  49
  50
  51 typedef struct
  52 {
  53        char            ident[8];
  54        uint32x         msgType;
  55        uint32x         flags;
  56        SPAStrHeader    user;
  57        SPAStrHeader    domain;
  58        uint8x          buffer[1024];
  59        uint32x         bufIndex;
  60 } SPAAuthRequest;
  61
  62 typedef struct
  63 {
  64        char            ident[8];
  65        uint32x         msgType;
  66        SPAStrHeader    lmResponse;
  67        SPAStrHeader    ntResponse;
  68        SPAStrHeader    uDomain;
  69        SPAStrHeader    uUser;
  70        SPAStrHeader    uWks;
  71        SPAStrHeader    sessionKey;
  72        uint32x         flags;
  73        uint8x          buffer[1024];
  74        uint32x         bufIndex;
  75 } SPAAuthResponse;
  76
  77 #define spa_request_length(ptr) (((ptr)->buffer - (uint8x*)(ptr)) + (ptr)->bufIndex)
  78
  79 void spa_bits_to_base64 (unsigned char *, const unsigned char *, int);
  80 int spa_base64_to_bits(char *, const char *);
  81 void spa_build_auth_response (SPAAuthChallenge *challenge,
  82        SPAAuthResponse *response, char *user, char *password);
  83 void spa_build_auth_request (SPAAuthRequest *request, char *user,
  84        char *domain);
  85 extern void spa_smb_encrypt (unsigned char * passwd, unsigned char * c8,
  86                              unsigned char * p24);
  87 extern void spa_smb_nt_encrypt (unsigned char * passwd, unsigned char * c8,
  88                                 unsigned char * p24);
  89 extern char *unicodeToString(char *p, size_t len);
  90 extern void spa_build_auth_challenge(SPAAuthRequest *, SPAAuthChallenge *);
  91