Mercurial > dropbear

annotate kex.h @ 1514:6c16a05023aa

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
rename some options and move some to sysoptions.h
author Matt Johnston <matt@ucc.asn.au>
date Sun, 18 Feb 2018 00:29:17 +0800
parents 06d52bcb8094
children 5916af64acd4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
2 * Dropbear - a SSH2 server
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
3 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
4 * Copyright (c) 2002,2003 Matt Johnston
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
5 * All rights reserved.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
6 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
8 * of this software and associated documentation files (the "Software"), to deal
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
9 * in the Software without restriction, including without limitation the rights
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
11 * copies of the Software, and to permit persons to whom the Software is
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
12 * furnished to do so, subject to the following conditions:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
13 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
14 * The above copyright notice and this permission notice shall be included in
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
15 * all copies or substantial portions of the Software.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
16 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
23 * SOFTWARE. */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
24
1036
deed0571cacc DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents: 848
diff changeset
25 #ifndef DROPBEAR_KEX_H_
deed0571cacc DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents: 848
diff changeset
26 #define DROPBEAR_KEX_H_
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
27
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
28 #include "includes.h"
26
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
29 #include "algo.h"
759
76fba0856749 More changes for KEX and ECDH. Set up hash descriptors, make ECC code work,
Matt Johnston <matt@ucc.asn.au>
parents: 756
diff changeset
30 #include "signkey.h"
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
31
1276
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
32 void send_msg_kexinit(void);
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
33 void recv_msg_kexinit(void);
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
34 void send_msg_newkeys(void);
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
35 void recv_msg_newkeys(void);
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
36 void kexfirstinitialise(void);
755
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
37
1276
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
38 struct kex_dh_param *gen_kexdh_param(void);
755
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
39 void free_kexdh_param(struct kex_dh_param *param);
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
40 void kexdh_comb_key(struct kex_dh_param *param, mp_int *dh_pub_them,
26
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
41 sign_key *hostkey);
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
42
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1276
diff changeset
43 #if DROPBEAR_ECDH
1276
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
44 struct kex_ecdh_param *gen_kexecdh_param(void);
755
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
45 void free_kexecdh_param(struct kex_ecdh_param *param);
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
46 void kexecdh_comb_key(struct kex_ecdh_param *param, buffer *pub_them,
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
47 sign_key *hostkey);
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
48 #endif
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
49
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1276
diff changeset
50 #if DROPBEAR_CURVE25519
1276
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
51 struct kex_curve25519_param *gen_kexcurve25519_param(void);
848
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
52 void free_kexcurve25519_param(struct kex_curve25519_param *param);
1459
06d52bcb8094 Pointer parameter could be declared as pointing to const
Francois Perrad <francois.perrad@gadz.org>
parents: 1295
diff changeset
53 void kexcurve25519_comb_key(const struct kex_curve25519_param *param, const buffer *pub_them,
848
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
54 sign_key *hostkey);
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
55 #endif
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
56
501
d58c478bd399 Add support for [email protected] delayed compression.
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
57 #ifndef DISABLE_ZLIB
1276
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
58 int is_compress_trans(void);
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
59 int is_compress_recv(void);
501
d58c478bd399 Add support for [email protected] delayed compression.
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
60 #endif
d58c478bd399 Add support for [email protected] delayed compression.
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
61
1276
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
62 void recv_msg_kexdh_init(void); /* server */
26
0969767bca0d snapshot of stuff
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
63
1276
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
64 void send_msg_kexdh_init(void); /* client */
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1224
diff changeset
65 void recv_msg_kexdh_reply(void); /* client */
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
66
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
67 struct KEXState {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
68
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
69 unsigned sentkexinit : 1; /*set when we've sent/recv kexinit packet */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
70 unsigned recvkexinit : 1;
739
d44325108d0e first_kex_packet_follows working, needs tidying
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
71 unsigned them_firstfollows : 1; /* true when first_kex_packet_follows is set */
623
895fbe068f2c Fix case where "-K 1" would cause a SSH_MSG_IGNORE packet to be sent
Matt Johnston <matt@ucc.asn.au>
parents: 501
diff changeset
72 unsigned sentnewkeys : 1; /* set once we've send MSG_NEWKEYS (will be cleared once we have also received */
895fbe068f2c Fix case where "-K 1" would cause a SSH_MSG_IGNORE packet to be sent
Matt Johnston <matt@ucc.asn.au>
parents: 501
diff changeset
73 unsigned recvnewkeys : 1; /* set once we've received MSG_NEWKEYS (cleared once we have also sent */
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
74
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 26
diff changeset
75 unsigned donefirstkex : 1; /* Set to 1 after the first kex has completed,
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 26
diff changeset
76 ie the transport layer has been set up */
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 26
diff changeset
77
739
d44325108d0e first_kex_packet_follows working, needs tidying
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
78 unsigned our_first_follows_matches : 1;
d44325108d0e first_kex_packet_follows working, needs tidying
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
79
454
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 227
diff changeset
80 time_t lastkextime; /* time of the last kex */
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
81 unsigned int datatrans; /* data transmitted since last kex */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
82 unsigned int datarecv; /* data received since last kex */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
83
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
84 };
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
85
755
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
86 struct kex_dh_param {
801
7dcb46da72d9 merge in HEAD
Matt Johnston <matt@ucc.asn.au>
parents: 759 740
diff changeset
87 mp_int pub; /* e */
7dcb46da72d9 merge in HEAD
Matt Johnston <matt@ucc.asn.au>
parents: 759 740
diff changeset
88 mp_int priv; /* x */
755
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
89 };
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
90
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1276
diff changeset
91 #if DROPBEAR_ECDH
755
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
92 struct kex_ecdh_param {
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
93 ecc_key key;
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
94 };
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc
Matt Johnston <matt@ucc.asn.au>
parents: 623
diff changeset
95 #endif
740
3062da90dab8 Add kexguess2 behaviour
Matt Johnston <matt@ucc.asn.au>
parents: 739
diff changeset
96
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1276
diff changeset
97 #if DROPBEAR_CURVE25519
848
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
98 #define CURVE25519_LEN 32
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
99 struct kex_curve25519_param {
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
100 unsigned char priv[CURVE25519_LEN];
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
101 unsigned char pub[CURVE25519_LEN];
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
102 };
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
103
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
104 /* No header file for curve25519_donna */
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
105 int curve25519_donna(unsigned char *out, const unsigned char *secret, const unsigned char *other);
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
106 #endif
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
107
6c69e7df3621 curve25519
Matt Johnston <matt@ucc.asn.au>
parents: 801
diff changeset
108
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
109 #define MAX_KEXHASHBUF 2000
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
110
1036
deed0571cacc DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents: 848
diff changeset
111 #endif /* DROPBEAR_KEX_H_ */