dropbear: kex.h annotate

annotate kex.h @ 1156:a8f4dade70e5

avoid getpass when not used some systems (like android's bionic) do not provide getpass. you can disable ENABLE_CLI_PASSWORD_AUTH & ENABLE_CLI_INTERACT_AUTH to avoid its use (and rely on pubkey auth), but the link still fails because the support file calls getpass. do not define this func if both of those auth methods are not used.

author	Mike Frysinger <vapier@gentoo.org>
date	Wed, 21 Oct 2015 22:39:55 +0800
parents	deed0571cacc
children	82e2037d34ea

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
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 void send_msg_kexinit();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33 void recv_msg_kexinit();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 void send_msg_newkeys();
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 void recv_msg_newkeys();
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: 26 diff changeset	36 void kexfirstinitialise();
755 b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 623 diff changeset	37
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 623 diff changeset	38 struct kex_dh_param *gen_kexdh_param();
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
755 b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 623 diff changeset	43 #ifdef DROPBEAR_ECDH
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 623 diff changeset	44 struct kex_ecdh_param *gen_kexecdh_param();
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
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	50 #ifdef DROPBEAR_CURVE25519
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	51 struct kex_curve25519_param *gen_kexcurve25519_param();
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	52 void free_kexcurve25519_param(struct kex_curve25519_param *param);
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	53 void kexcurve25519_comb_key(struct kex_curve25519_param param, buffer pub_them,
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
d58c478bd399 Add support for [email protected] delayed compression. Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	58 int is_compress_trans();
d58c478bd399 Add support for [email protected] delayed compression. Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	59 int is_compress_recv();
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
179 161557a9dde8 * fix longstanding bug with connections being closed on failure to Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	62 void recv_msg_kexdh_init(); /* server */
26 0969767bca0d snapshot of stuff Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	63
179 161557a9dde8 * fix longstanding bug with connections being closed on failure to Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	64 void send_msg_kexdh_init(); /* client */
161557a9dde8 * fix longstanding bug with connections being closed on failure to Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	65 void recv_msg_kexdh_reply(); /* 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
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	86 #define DH_P_1_LEN 128
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	87 extern const unsigned char dh_p_1[DH_P_1_LEN];
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	88 #define DH_P_14_LEN 256
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	89 extern const unsigned char dh_p_14[DH_P_14_LEN];
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	90
755 b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 623 diff changeset	91 struct kex_dh_param {
801 7dcb46da72d9 merge in HEAD Matt Johnston <matt@ucc.asn.au> parents: 759 740 diff changeset	92 mp_int pub; /* e */
7dcb46da72d9 merge in HEAD Matt Johnston <matt@ucc.asn.au> parents: 759 740 diff changeset	93 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	94 };
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 623 diff changeset	95
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 623 diff changeset	96 #ifdef DROPBEAR_ECDH
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 623 diff changeset	97 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	98 ecc_key key;
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 623 diff changeset	99 };
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 623 diff changeset	100 #endif
740 3062da90dab8 Add kexguess2 behaviour Matt Johnston <matt@ucc.asn.au> parents: 739 diff changeset	101
848 6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	102 #ifdef DROPBEAR_CURVE25519
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	103 #define CURVE25519_LEN 32
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	104 struct kex_curve25519_param {
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	105 unsigned char priv[CURVE25519_LEN];
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	106 unsigned char pub[CURVE25519_LEN];
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
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	109 /* No header file for curve25519_donna */
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	110 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	111 #endif
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	112
6c69e7df3621 curve25519 Matt Johnston <matt@ucc.asn.au> parents: 801 diff changeset	113
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 #define MAX_KEXHASHBUF 2000
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115
1036 deed0571cacc DROPBEAR_ prefix for include guards to avoid collisions Thorsten Horstmann <thorsten.horstmann@web.de> parents: 848 diff changeset	116 #endif /* DROPBEAR_KEX_H_ */

Mercurial > dropbear

annotate kex.h @ 1156:a8f4dade70e5