include/ircd_crypt.h

   1 /*
   2  * IRC - Internet Relay Chat, include/ircd_crypt.h
   3  * Copyright (C) 2002 hikari
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 1, or (at your option)
   8  * any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /** @file
  20  * @brief Core password encryption and hashing APIs.
  21  * @version $Id: ircd_crypt.h,v 1.3 2004/11/07 21:04:58 entrope Exp $
  22  */
  23 #ifndef INCLUDED_ircd_crypt_h
  24 #define INCLUDED_ircd_crypt_h
  25
  26 /* forward planning for modularisation */
  27 struct crypt_mech_s {
  28  char* mechname;     /* name of the mechanism */
  29  char* shortname;    /* short name of the module */
  30  char* description;  /* description of the mechanism */
  31
  32  const char* (*crypt_function)(const char *, const char *);
  33                      /* pointer to the crypt function */
  34
  35  char* crypt_token;  /* what identifies a password string
  36                         as belonging to this mechanism */
  37
  38  int crypt_token_size; /* how long is the token */
  39 };
  40
  41 typedef struct crypt_mech_s crypt_mech_t;
  42
  43 struct crypt_mechs_s;
  44 typedef struct crypt_mechs_s crypt_mechs_t;
  45
  46 struct crypt_mechs_s {
  47  crypt_mech_t* mech;
  48  crypt_mechs_t* next;
  49  crypt_mechs_t* prev;
  50 };
  51
  52 /* access macros */
  53 #define MechName(x) x->mechname
  54 #define ShortName(x) x->shortname
  55 #define Description(x) x->description
  56 #define CryptFunc(x) x->crypt_function
  57 #define CryptTok(x) x->crypt_token
  58 #define CryptTokSize(x) x->crypt_token_size
  59
  60 /* exported functions */
  61 extern void ircd_crypt_init(void);
  62 extern char* ircd_crypt(const char* key, const char* salt);
  63 extern int ircd_crypt_register_mech(crypt_mech_t* mechanism);
  64 extern int ircd_crypt_unregister_mech(crypt_mech_t* mechanism);
  65
  66 /* exported variables */
  67 extern crypt_mechs_t* crypt_mechs_root;
  68
  69 #endif /* INCLUDED_ircd_crypt_h */
  70