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      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 (at) 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
     39