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openssh/deattack.h

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upstream commit update packet.c & isolate, introduce struct ssh a) switch packet.c to buffer api and isolate per-connection info into struct ssh b) (de)serialization of the state is moved from monitor to packet.c c) the old packet.c API is implemented in opacket.[ch] d) compress.c/h is removed and integrated into packet.c with and ok djm@
2015-01-19 19:52:16 +00:00
/* $OpenBSD: deattack.h,v 1.11 2015/01/19 19:52:16 markus Exp $ */
- niklas@cvs.openbsd.org 2001/01/2001 [atomicio.h canohost.h clientloop.h deattack.h dh.h dispatch.h groupaccess.c groupaccess.h hmac.h hostfile.h includes.h kex.h key.h log.h login.h match.h misc.h myproposal.h nchan.ms pathnames.h radix.h readpass.h rijndael.h serverloop.h session.h sftp.h ssh-add.1 ssh-dss.h ssh-keygen.1 ssh-keyscan.1 ssh-rsa.h ssh1.h ssh_config sshconnect.h sshd_config tildexpand.h uidswap.h uuencode.h] $OpenBSD$
2001-01-29 07:39:26 +00:00
- Merged very large OpenBSD source code reformat - OpenBSD CVS updates - [channels.c cipher.c compat.c log-client.c scp.c serverloop.c] [ssh.h sshd.8 sshd.c] syslog changes: * Unified Logmessage for all auth-types, for success and for failed * Standard connections get only ONE line in the LOG when level==LOG: Auth-attempts are logged only, if authentication is: a) successfull or b) with passwd or c) we had more than AUTH_FAIL_LOG failues * many log() became verbose() * old behaviour with level=VERBOSE - [readconf.c readconf.h ssh.1 ssh.h sshconnect.c sshd.c] tranfer s/key challenge/response data in SSH_SMSG_AUTH_TIS_CHALLENGE messages. allows use of s/key in windows (ttssh, securecrt) and ssh-1.2.27 clients without 'ssh -v', ok: niels@ - [sshd.8] -V, for fallback to openssh in SSH2 compatibility mode - [sshd.c] fix sigchld race; cjc5@po.cwru.edu
1999-11-24 13:26:21 +00:00
/*
Initial revision
1999-10-27 03:42:43 +00:00
* Cryptographic attack detector for ssh - Header file
*
* Copyright (c) 1998 CORE SDI S.A., Buenos Aires, Argentina.
*
* All rights reserved. Redistribution and use in source and binary
* forms, with or without modification, are permitted provided that
* this copyright notice is retained.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES ARE DISCLAIMED. IN NO EVENT SHALL CORE SDI S.A. BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY OR
* CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OR MISUSE OF THIS
* SOFTWARE.
*
* Ariel Futoransky <futo@core-sdi.com>
- Merged very large OpenBSD source code reformat - OpenBSD CVS updates - [channels.c cipher.c compat.c log-client.c scp.c serverloop.c] [ssh.h sshd.8 sshd.c] syslog changes: * Unified Logmessage for all auth-types, for success and for failed * Standard connections get only ONE line in the LOG when level==LOG: Auth-attempts are logged only, if authentication is: a) successfull or b) with passwd or c) we had more than AUTH_FAIL_LOG failues * many log() became verbose() * old behaviour with level=VERBOSE - [readconf.c readconf.h ssh.1 ssh.h sshconnect.c sshd.c] tranfer s/key challenge/response data in SSH_SMSG_AUTH_TIS_CHALLENGE messages. allows use of s/key in windows (ttssh, securecrt) and ssh-1.2.27 clients without 'ssh -v', ok: niels@ - [sshd.8] -V, for fallback to openssh in SSH2 compatibility mode - [sshd.c] fix sigchld race; cjc5@po.cwru.edu
1999-11-24 13:26:21 +00:00
* <http://www.core-sdi.com>
*/
Initial revision
1999-10-27 03:42:43 +00:00
#ifndef _DEATTACK_H
#define _DEATTACK_H
/* Return codes */
#define DEATTACK_OK 0
#define DEATTACK_DETECTED 1
- djm@cvs.openbsd.org 2006/09/16 19:53:37 [deattack.c deattack.h packet.c] limit maximum work performed by the CRC compensation attack detector, problem reported by Tavis Ormandy, Google Security Team; ok markus@ deraadt@
2006-09-16 20:08:53 +00:00
#define DEATTACK_DOS_DETECTED 2
upstream commit update packet.c & isolate, introduce struct ssh a) switch packet.c to buffer api and isolate per-connection info into struct ssh b) (de)serialization of the state is moved from monitor to packet.c c) the old packet.c API is implemented in opacket.[ch] d) compress.c/h is removed and integrated into packet.c with and ok djm@
2015-01-19 19:52:16 +00:00
#define DEATTACK_ERROR 3
Initial revision
1999-10-27 03:42:43 +00:00
upstream commit update packet.c & isolate, introduce struct ssh a) switch packet.c to buffer api and isolate per-connection info into struct ssh b) (de)serialization of the state is moved from monitor to packet.c c) the old packet.c API is implemented in opacket.[ch] d) compress.c/h is removed and integrated into packet.c with and ok djm@
2015-01-19 19:52:16 +00:00
struct deattack_ctx {
u_int16_t *h;
u_int32_t n;
};
void deattack_init(struct deattack_ctx *);
int detect_attack(struct deattack_ctx *, const u_char *, u_int32_t);
Initial revision
1999-10-27 03:42:43 +00:00
#endif