crypto/openssh/deattack.h

   1 /* $OpenBSD: deattack.h,v 1.11 2015/01/19 19:52:16 markus Exp $ */
   2
   3 /*
   4  * Cryptographic attack detector for ssh - Header file
   5  *
   6  * Copyright (c) 1998 CORE SDI S.A., Buenos Aires, Argentina.
   7  *
   8  * All rights reserved. Redistribution and use in source and binary
   9  * forms, with or without modification, are permitted provided that
  10  * this copyright notice is retained.
  11  *
  12  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  13  * WARRANTIES ARE DISCLAIMED. IN NO EVENT SHALL CORE SDI S.A. BE
  14  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY OR
  15  * CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OR MISUSE OF THIS
  16  * SOFTWARE.
  17  *
  18  * Ariel Futoransky <futo@core-sdi.com>
  19  * <http://www.core-sdi.com>
  20  */
  21
  22 #ifndef _DEATTACK_H
  23 #define _DEATTACK_H
  24
  25 /* Return codes */
  26 #define DEATTACK_OK             0
  27 #define DEATTACK_DETECTED       1
  28 #define DEATTACK_DOS_DETECTED   2
  29 #define DEATTACK_ERROR          3
  30
  31 struct deattack_ctx {
  32         u_int16_t *h;
  33         u_int32_t n;
  34 };
  35
  36 void     deattack_init(struct deattack_ctx *);
  37 int      detect_attack(struct deattack_ctx *, const u_char *, u_int32_t);
  38 #endif