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Diffstat (limited to 'kex.h')
| -rw-r--r-- | kex.h | 64 |
1 files changed, 64 insertions, 0 deletions
@@ -0,0 +1,64 @@ +/* + * Dropbear - a SSH2 server + * + * Copyright (c) 2002,2003 Matt Johnston + * All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. */ + +#ifndef _KEX_H_ +#define _KEX_H_ + +#include "includes.h" +#include "algo.h" + +void send_msg_kexinit(); +void recv_msg_kexinit(); +void send_msg_newkeys(); +void recv_msg_newkeys(); +void kexfirstinitialise(); +void gen_kexdh_vals(mp_int *dh_pub, mp_int *dh_priv); +void kexdh_comb_key(mp_int *dh_pub_us, mp_int *dh_priv, mp_int *dh_pub_them, + sign_key *hostkey); + +void recv_msg_kexdh_init(); /* server */ + +void send_msg_kexdh_init(); /* client */ +void recv_msg_kexdh_reply(); /* client */ + +struct KEXState { + + unsigned sentkexinit : 1; /*set when we've sent/recv kexinit packet */ + unsigned recvkexinit : 1; + unsigned firstfollows : 1; /* true when first_kex_packet_follows is set */ + unsigned sentnewkeys : 1; /* set once we've send/recv'ed MSG_NEWKEYS*/ + unsigned recvnewkeys : 1; + + unsigned donefirstkex : 1; /* Set to 1 after the first kex has completed, + ie the transport layer has been set up */ + + long lastkextime; /* time of the last kex */ + unsigned int datatrans; /* data transmitted since last kex */ + unsigned int datarecv; /* data received since last kex */ + +}; + +#define MAX_KEXHASHBUF 2000 + +#endif /* _KEX_H_ */ |