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114 lines
2.9 KiB
C
114 lines
2.9 KiB
C
/*
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* Dropbear - a SSH2 server
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*
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* Copyright (c) 2002,2003 Matt Johnston
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE. */
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#include "includes.h"
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#include "runopts.h"
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#include "signkey.h"
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#include "buffer.h"
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#include "dbutil.h"
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#include "auth.h"
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#include "algo.h"
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#include "dbrandom.h"
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runopts opts; /* GLOBAL */
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/* returns success or failure, and the keytype in *type. If we want
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* to restrict the type, type can contain a type to return */
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int readhostkey(const char * filename, sign_key * hostkey,
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enum signkey_type *type) {
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int ret = DROPBEAR_FAILURE;
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buffer *buf;
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buf = buf_new(MAX_PRIVKEY_SIZE);
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if (buf_readfile(buf, filename) == DROPBEAR_FAILURE) {
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goto out;
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}
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buf_setpos(buf, 0);
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addrandom(buf_getptr(buf, buf->len), buf->len);
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if (buf_get_priv_key(buf, hostkey, type) == DROPBEAR_FAILURE) {
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goto out;
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}
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ret = DROPBEAR_SUCCESS;
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out:
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buf_burn(buf);
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buf_free(buf);
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return ret;
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}
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#ifdef ENABLE_USER_ALGO_LIST
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void
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parse_ciphers_macs()
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{
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if (opts.cipher_list)
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{
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if (strcmp(opts.cipher_list, "help") == 0)
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{
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char *ciphers = algolist_string(sshciphers);
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dropbear_log(LOG_INFO, "Available ciphers:\n%s\n", ciphers);
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m_free(ciphers);
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dropbear_exit(".");
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}
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if (strcmp(opts.cipher_list, "none") == 0)
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{
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/* Encryption is required during authentication */
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opts.cipher_list = "none,aes128-ctr";
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}
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if (check_user_algos(opts.cipher_list, sshciphers, "cipher") == 0)
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{
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dropbear_exit("No valid ciphers specified for '-c'");
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}
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}
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if (opts.mac_list)
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{
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if (strcmp(opts.mac_list, "help") == 0)
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{
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char *macs = algolist_string(sshhashes);
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dropbear_log(LOG_INFO, "Available MACs:\n%s\n", macs);
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m_free(macs);
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dropbear_exit(".");
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}
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if (check_user_algos(opts.mac_list, sshhashes, "MAC") == 0)
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{
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dropbear_exit("No valid MACs specified for '-m'");
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}
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}
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}
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#endif
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void print_version() {
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fprintf(stderr, "Dropbear v%s\n", DROPBEAR_VERSION);
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}
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