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https://github.com/clearml/dropbear
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3ee685ad1c
For the sake of review, this commit alters only the code; the affiliated
comments within the source files also need to be updated, but doing so
now would obscure the operational changes that have been made here.
* All on/off options have been switched to the numeric `#if' variant;
that is the only way to make this `default_options.h.in' thing work
in a reasonable manner.
* There is now some very minor compile-time checking of the user's
choice of options.
* NO_FAST_EXPTMOD doesn't seem to be used, so it has been removed.
* ENABLE_USER_ALGO_LIST was supposed to be renamed DROPBEAR_USER_ALGO_LIST,
and this commit completes that work.
* DROPBEAR_FUZZ seems to be a relatively new, as-yet undocumented option,
which was added by the following commit:
commit 6e0b539e9c
Author: Matt Johnston <matt@ucc.asn.au>
Date: Tue May 23 22:29:21 2017 +0800
split out checkpubkey_line() separately
It has now been added to `sysoptions.h' and defined as `0' by default.
* The configuration option `DROPBEAR_PASSWORD_ENV' is no longer listed in
`default_options.h.in'; it is no longer meant to be set by the user, and
is instead left to be defined in `sysoptions.h' (where it was already being
defined) as merely the name of the environment variable in question:
DROPBEAR_PASSWORD
To enable or disable use of that environment variable, the user must now
toggle `DROPBEAR_USE_DROPBEAR_PASSWORD'.
* The sFTP support is now toggled by setting `DROPBEAR_SFTPSERVER', and the
path of the sFTP server program is set independently through the usual
SFTPSERVER_PATH.
184 lines
4.3 KiB
C
184 lines
4.3 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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#ifndef DROPBEAR_RUNOPTS_H_
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#define DROPBEAR_RUNOPTS_H_
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#include "includes.h"
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#include "signkey.h"
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#include "buffer.h"
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#include "auth.h"
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#include "tcpfwd.h"
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typedef struct runopts {
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#if DROPBEAR_SVR_REMOTETCPFWD || DROPBEAR_CLI_LOCALTCPFWD \
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|| DROPBEAR_CLI_REMOTETCPFWD
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int listen_fwd_all;
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#endif
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unsigned int recv_window;
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time_t keepalive_secs; /* Time between sending keepalives. 0 is off */
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time_t idle_timeout_secs; /* Exit if no traffic is sent/received in this time */
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int usingsyslog;
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#ifndef DISABLE_ZLIB
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/* TODO: add a commandline flag. Currently this is on by default if compression
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* is compiled in, but disabled for a client's non-final multihop stages. (The
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* intermediate stages are compressed streams, so are uncompressible. */
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enum {
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DROPBEAR_COMPRESS_DELAYED, /* Server only */
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DROPBEAR_COMPRESS_ON,
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DROPBEAR_COMPRESS_OFF,
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} compress_mode;
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#endif
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#if DROPBEAR_USER_ALGO_LIST
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char *cipher_list;
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char *mac_list;
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#endif
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} runopts;
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extern runopts opts;
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int readhostkey(const char * filename, sign_key * hostkey,
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enum signkey_type *type);
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void load_all_hostkeys(void);
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typedef struct svr_runopts {
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char * bannerfile;
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int forkbg;
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/* ports and addresses are arrays of the portcount
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listening ports. strings are malloced. */
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char *ports[DROPBEAR_MAX_PORTS];
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unsigned int portcount;
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char *addresses[DROPBEAR_MAX_PORTS];
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int inetdmode;
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/* Flags indicating whether to use ipv4 and ipv6 */
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/* not used yet
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int ipv4;
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int ipv6;
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*/
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#if DO_MOTD
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/* whether to print the MOTD */
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int domotd;
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#endif
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int norootlogin;
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int noauthpass;
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int norootpass;
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int allowblankpass;
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unsigned int maxauthtries;
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#if DROPBEAR_SVR_REMOTETCPFWD
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int noremotetcp;
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#endif
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#if DROPBEAR_SVR_LOCALTCPFWD
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int nolocaltcp;
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#endif
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sign_key *hostkey;
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int delay_hostkey;
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char *hostkey_files[MAX_HOSTKEYS];
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int num_hostkey_files;
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buffer * banner;
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char * pidfile;
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char * forced_command;
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} svr_runopts;
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extern svr_runopts svr_opts;
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void svr_getopts(int argc, char ** argv);
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void loadhostkeys(void);
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typedef struct cli_runopts {
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char *progname;
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char *remotehost;
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char *remoteport;
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char *own_user;
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char *username;
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char *cmd;
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int wantpty;
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int always_accept_key;
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int no_hostkey_check;
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int no_cmd;
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int backgrounded;
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int is_subsystem;
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#if DROPBEAR_CLI_PUBKEY_AUTH
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m_list *privkeys; /* Keys to use for public-key auth */
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#endif
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#if DROPBEAR_CLI_ANYTCPFWD
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int exit_on_fwd_failure;
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#endif
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#if DROPBEAR_CLI_REMOTETCPFWD
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m_list * remotefwds;
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#endif
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#if DROPBEAR_CLI_LOCALTCPFWD
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m_list * localfwds;
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#endif
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#if DROPBEAR_CLI_AGENTFWD
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int agent_fwd;
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int agent_keys_loaded; /* whether pubkeys has been populated with a
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list of keys held by the agent */
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int agent_fd; /* The agent fd is only set during authentication. Forwarded
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agent sessions have their own file descriptors */
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#endif
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#if DROPBEAR_CLI_NETCAT
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char *netcat_host;
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unsigned int netcat_port;
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#endif
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#if DROPBEAR_CLI_PROXYCMD
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char *proxycmd;
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#endif
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char *bind_address;
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char *bind_port;
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} cli_runopts;
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extern cli_runopts cli_opts;
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void cli_getopts(int argc, char ** argv);
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#if DROPBEAR_USER_ALGO_LIST
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void parse_ciphers_macs(void);
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#endif
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void print_version(void);
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#endif /* DROPBEAR_RUNOPTS_H_ */
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