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// -*-c++-*-
/* $Id: axprt_crypt.h,v 1.8 1999/09/13 16:37:14 dm Exp $ */
/*
*
* Copyright (C) 1998 David Mazieres (dm@uun.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*/
#ifndef _AXPRT_CRYPT_H_
#define _AXPRT_CRYPT_H_ 1
#include "arpc.h"
#include "arc4.h"
class axprt_crypt : public axprt_stream {
enum { macsize = 16 };
arc4 ctx_send;
arc4 ctx_recv;
bool cryptsend;
bool cryptrecv;
bool macset;
u_char mackey1[16];
u_char mackey2[16];
u_int32_t lenpad;
protected:
axprt_crypt (int f, size_t ps)
: axprt_stream (f, ps, ps + macsize + 4),
cryptsend (false), cryptrecv (false), macset (false)
{}
virtual ~axprt_crypt ();
virtual bool getpkt (char **, char *);
virtual void recvbreak ();
public:
virtual void sendv (const iovec *, int, const sockaddr * = NULL);
void encrypt (const void *sendkey, size_t sendkeylen,
const void *recvkey, size_t recvkeylen);
void encrypt (const str &sendkey, const str &recvkey)
{ encrypt (sendkey, sendkey.len (), recvkey, recvkey.len ()); }
static ref<axprt_crypt> alloc (int, size_t = axprt_stream::defps);
};
extern const axprtalloc_fn axprt_crypt_alloc;
#endif /* !_AXPRT_CRYPT_H_ */
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