| /* |
| * 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 |
| |
| void print_version() { |
| fprintf(stderr, "Dropbear v%s\n", DROPBEAR_VERSION); |
| } |
| |
| |