Mercurial > dropbear
annotate kex.h @ 1052:e40d1b63b6a6 coverity
merge
author | Matt Johnston <matt@ucc.asn.au> |
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date | Sat, 28 Feb 2015 23:25:16 +0800 |
parents | deed0571cacc |
children | 82e2037d34ea |
rev | line source |
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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 DROPBEAR_KEX_H_ |
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26 #define DROPBEAR_KEX_H_ |
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27 |
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28 #include "includes.h" |
26 | 29 #include "algo.h" |
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30 #include "signkey.h" |
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31 |
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32 void send_msg_kexinit(); |
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33 void recv_msg_kexinit(); |
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34 void send_msg_newkeys(); |
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35 void recv_msg_newkeys(); |
33 | 36 void kexfirstinitialise(); |
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37 |
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38 struct kex_dh_param *gen_kexdh_param(); |
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39 void free_kexdh_param(struct kex_dh_param *param); |
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40 void kexdh_comb_key(struct kex_dh_param *param, mp_int *dh_pub_them, |
26 | 41 sign_key *hostkey); |
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42 |
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43 #ifdef DROPBEAR_ECDH |
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44 struct kex_ecdh_param *gen_kexecdh_param(); |
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45 void free_kexecdh_param(struct kex_ecdh_param *param); |
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46 void kexecdh_comb_key(struct kex_ecdh_param *param, buffer *pub_them, |
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47 sign_key *hostkey); |
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48 #endif |
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49 |
848 | 50 #ifdef DROPBEAR_CURVE25519 |
51 struct kex_curve25519_param *gen_kexcurve25519_param(); | |
52 void free_kexcurve25519_param(struct kex_curve25519_param *param); | |
53 void kexcurve25519_comb_key(struct kex_curve25519_param *param, buffer *pub_them, | |
54 sign_key *hostkey); | |
55 #endif | |
56 | |
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57 #ifndef DISABLE_ZLIB |
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58 int is_compress_trans(); |
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59 int is_compress_recv(); |
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60 #endif |
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61 |
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62 void recv_msg_kexdh_init(); /* server */ |
26 | 63 |
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64 void send_msg_kexdh_init(); /* client */ |
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65 void recv_msg_kexdh_reply(); /* client */ |
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66 |
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67 struct KEXState { |
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68 |
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69 unsigned sentkexinit : 1; /*set when we've sent/recv kexinit packet */ |
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70 unsigned recvkexinit : 1; |
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71 unsigned them_firstfollows : 1; /* true when first_kex_packet_follows is set */ |
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72 unsigned sentnewkeys : 1; /* set once we've send MSG_NEWKEYS (will be cleared once we have also received */ |
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73 unsigned recvnewkeys : 1; /* set once we've received MSG_NEWKEYS (cleared once we have also sent */ |
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74 |
33 | 75 unsigned donefirstkex : 1; /* Set to 1 after the first kex has completed, |
76 ie the transport layer has been set up */ | |
77 | |
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78 unsigned our_first_follows_matches : 1; |
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79 |
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80 time_t lastkextime; /* time of the last kex */ |
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81 unsigned int datatrans; /* data transmitted since last kex */ |
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82 unsigned int datarecv; /* data received since last kex */ |
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83 |
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84 }; |
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85 |
756 | 86 #define DH_P_1_LEN 128 |
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87 extern const unsigned char dh_p_1[DH_P_1_LEN]; |
756 | 88 #define DH_P_14_LEN 256 |
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89 extern const unsigned char dh_p_14[DH_P_14_LEN]; |
756 | 90 |
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91 struct kex_dh_param { |
801 | 92 mp_int pub; /* e */ |
93 mp_int priv; /* x */ | |
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94 }; |
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95 |
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96 #ifdef DROPBEAR_ECDH |
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97 struct kex_ecdh_param { |
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98 ecc_key key; |
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99 }; |
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100 #endif |
740 | 101 |
848 | 102 #ifdef DROPBEAR_CURVE25519 |
103 #define CURVE25519_LEN 32 | |
104 struct kex_curve25519_param { | |
105 unsigned char priv[CURVE25519_LEN]; | |
106 unsigned char pub[CURVE25519_LEN]; | |
107 }; | |
108 | |
109 /* No header file for curve25519_donna */ | |
110 int curve25519_donna(unsigned char *out, const unsigned char *secret, const unsigned char *other); | |
111 #endif | |
112 | |
113 | |
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114 #define MAX_KEXHASHBUF 2000 |
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115 |
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116 #endif /* DROPBEAR_KEX_H_ */ |