Mercurial > dropbear
view kex.h @ 1785:9026f976eee8
fuzz: work around fuzz_connect_remote() limitations
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Sun, 06 Dec 2020 21:27:25 +0800 |
parents | 8f93f37c01de |
children |
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/* * 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 DROPBEAR_KEX_H_ #define DROPBEAR_KEX_H_ #include "includes.h" #include "algo.h" #include "signkey.h" void send_msg_kexinit(void); void recv_msg_kexinit(void); void send_msg_newkeys(void); void recv_msg_newkeys(void); void kexfirstinitialise(void); void finish_kexhashbuf(void); #if DROPBEAR_NORMAL_DH struct kex_dh_param *gen_kexdh_param(void); void free_kexdh_param(struct kex_dh_param *param); void kexdh_comb_key(struct kex_dh_param *param, mp_int *dh_pub_them, sign_key *hostkey); #endif #if DROPBEAR_ECDH struct kex_ecdh_param *gen_kexecdh_param(void); void free_kexecdh_param(struct kex_ecdh_param *param); void kexecdh_comb_key(struct kex_ecdh_param *param, buffer *pub_them, sign_key *hostkey); #endif #if DROPBEAR_CURVE25519 struct kex_curve25519_param *gen_kexcurve25519_param(void); void free_kexcurve25519_param(struct kex_curve25519_param *param); void kexcurve25519_comb_key(const struct kex_curve25519_param *param, const buffer *pub_them, sign_key *hostkey); #endif #ifndef DISABLE_ZLIB int is_compress_trans(void); int is_compress_recv(void); #endif void recv_msg_kexdh_init(void); /* server */ void send_msg_kexdh_init(void); /* client */ void recv_msg_kexdh_reply(void); /* client */ void recv_msg_ext_info(void); struct KEXState { unsigned sentkexinit : 1; /*set when we've sent/recv kexinit packet */ unsigned recvkexinit : 1; unsigned them_firstfollows : 1; /* true when first_kex_packet_follows is set */ unsigned sentnewkeys : 1; /* set once we've send MSG_NEWKEYS (will be cleared once we have also received */ unsigned recvnewkeys : 1; /* set once we've received MSG_NEWKEYS (cleared once we have also sent */ unsigned int donefirstkex; /* Set to 1 after the first kex has completed, ie the transport layer has been set up */ unsigned int donesecondkex; /* Set to 1 after the second kex has completed */ unsigned our_first_follows_matches : 1; time_t lastkextime; /* time of the last kex */ unsigned int datatrans; /* data transmitted since last kex */ unsigned int datarecv; /* data received since last kex */ }; #if DROPBEAR_NORMAL_DH struct kex_dh_param { mp_int pub; /* e */ mp_int priv; /* x */ }; #endif #if DROPBEAR_ECDH struct kex_ecdh_param { ecc_key key; }; #endif #if DROPBEAR_CURVE25519 #define CURVE25519_LEN 32 struct kex_curve25519_param { unsigned char priv[CURVE25519_LEN]; unsigned char pub[CURVE25519_LEN]; }; #endif #endif /* DROPBEAR_KEX_H_ */