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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. */
#include "includes.h"
#include "runopts.h"
#include "signkey.h"
#include "buffer.h"
#include "dbutil.h"
#include "auth.h"
#include "algo.h"
#include "dbrandom.h"
runopts opts; /* GLOBAL */
/* returns success or failure, and the keytype in *type. If we want
* to restrict the type, type can contain a type to return */
int readhostkey(const char * filename, sign_key * hostkey,
enum signkey_type *type) {
int ret = DROPBEAR_FAILURE;
buffer *buf;
buf = buf_new(MAX_PRIVKEY_SIZE);
if (buf_readfile(buf, filename) == DROPBEAR_FAILURE) {
goto out;
}
buf_setpos(buf, 0);
addrandom(buf_getptr(buf, buf->len), buf->len);
if (buf_get_priv_key(buf, hostkey, type) == DROPBEAR_FAILURE) {
goto out;
}
ret = DROPBEAR_SUCCESS;
out:
buf_burn(buf);
buf_free(buf);
return ret;
}
#ifdef ENABLE_USER_ALGO_LIST
void
parse_ciphers_macs()
{
if (opts.cipher_list)
{
if (strcmp(opts.cipher_list, "help") == 0)
{
char *ciphers = algolist_string(sshciphers);
dropbear_log(LOG_INFO, "Available ciphers:\n%s\n", ciphers);
m_free(ciphers);
dropbear_exit(".");
}
if (strcmp(opts.cipher_list, "none") == 0)
{
/* Encryption is required during authentication */
opts.cipher_list = "none,aes128-ctr";
}
if (check_user_algos(opts.cipher_list, sshciphers, "cipher") == 0)
{
dropbear_exit("No valid ciphers specified for '-c'");
}
}
if (opts.mac_list)
{
if (strcmp(opts.mac_list, "help") == 0)
{
char *macs = algolist_string(sshhashes);
dropbear_log(LOG_INFO, "Available MACs:\n%s\n", macs);
m_free(macs);
dropbear_exit(".");
}
if (check_user_algos(opts.mac_list, sshhashes, "MAC") == 0)
{
dropbear_exit("No valid MACs specified for '-m'");
}
}
}
#endif
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