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annotate kex.h @ 29:0fcf63e1cb01

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Totally reworked Makefile.in Doesn't totally work, but getting there
author Matt Johnston <matt@ucc.asn.au>
date Tue, 27 Jul 2004 13:32:54 +0000
parents 0969767bca0d
children f789045062e6
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1 /*
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2 * Dropbear - a SSH2 server
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3 *
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4 * Copyright (c) 2002,2003 Matt Johnston
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5 * All rights reserved.
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6 *
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 * of this software and associated documentation files (the "Software"), to deal
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9 * in the Software without restriction, including without limitation the rights
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 * copies of the Software, and to permit persons to whom the Software is
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12 * furnished to do so, subject to the following conditions:
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13 *
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14 * The above copyright notice and this permission notice shall be included in
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15 * all copies or substantial portions of the Software.
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16 *
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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23 * SOFTWARE. */
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24
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25 #ifndef _KEX_H_
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26 #define _KEX_H_
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27
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28 #include "includes.h"
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29 #include "algo.h"
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30
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31 void send_msg_kexinit();
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32 void recv_msg_kexinit();
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33 void send_msg_newkeys();
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34 void recv_msg_newkeys();
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35 void kexinitialise();
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36 void gen_kexdh_vals(mp_int *dh_pub, mp_int *dh_priv);
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37 void kexdh_comb_key(mp_int *dh_pub_us, mp_int *dh_priv, mp_int *dh_pub_them,
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38 sign_key *hostkey);
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39
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40 void read_kex_algos(
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41 algo_type*(buf_match_algo)(buffer*buf, algo_type localalgos[],
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42 int *goodguess));
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43
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44 void recv_msg_kexdh_init(); // server
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45
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46 void send_msg_kexdh_init(); // client
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47 void recv_msg_kexdh_reply(); // client
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49 extern const unsigned char dh_p_val[];
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50 #define DH_P_LEN 128 /* The length of the dh_p_val array */
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51
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52 extern const int DH_G_VAL; /* == 2 */
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53
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54 struct KEXState {
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55
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56 unsigned sentkexinit : 1; /*set when we've sent/recv kexinit packet */
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57 unsigned recvkexinit : 1;
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58 unsigned firstfollows : 1; /* true when first_kex_packet_follows is set */
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59 unsigned sentnewkeys : 1; /* set once we've send/recv'ed MSG_NEWKEYS*/
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60 unsigned recvnewkeys : 1;
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61
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62 long lastkextime; /* time of the last kex */
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63 unsigned int datatrans; /* data transmitted since last kex */
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64 unsigned int datarecv; /* data received since last kex */
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65
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66 };
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67
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68 #define MAX_KEXHASHBUF 2000
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69
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70 #endif /* _KEX_H_ */