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Diffstat (limited to 'default_options.h.in')
| -rw-r--r-- | default_options.h.in | 365 |
1 files changed, 0 insertions, 365 deletions
diff --git a/default_options.h.in b/default_options.h.in deleted file mode 100644 index 3e7052f..0000000 --- a/default_options.h.in +++ /dev/null @@ -1,365 +0,0 @@ -#ifndef DROPBEAR_DEFAULT_OPTIONS_H_ -#define DROPBEAR_DEFAULT_OPTIONS_H_ -/* - > > > Read This < < < - -default_options.h.in documents compile-time options, and provides default values. - -Local customisation should be added to localoptions.h which is -used if it exists. Options defined there will override any options in this -file. - -Options can also be defined with -DDROPBEAR_XXX in Makefile CFLAGS - -IMPORTANT: Many options will require "make clean" after changes */ - -#define DROPBEAR_DEFPORT "22" - -/* Listen on all interfaces */ -#define DROPBEAR_DEFADDRESS "" - -/* Default hostkey paths - these can be specified on the command line */ -#define DSS_PRIV_FILENAME "/etc/dropbear/dropbear_dss_host_key" -#define RSA_PRIV_FILENAME "/etc/dropbear/dropbear_rsa_host_key" -#define ECDSA_PRIV_FILENAME "/etc/dropbear/dropbear_ecdsa_host_key" - -/* Set NON_INETD_MODE if you require daemon functionality (ie Dropbear listens - * on chosen ports and keeps accepting connections. This is the default. - * - * Set INETD_MODE if you want to be able to run Dropbear with inetd (or - * similar), where it will use stdin/stdout for connections, and each process - * lasts for a single connection. Dropbear should be invoked with the -i flag - * for inetd, and can only accept IPv4 connections. - * - * Both of these flags can be defined at once, don't compile without at least - * one of them. */ -#define NON_INETD_MODE 1 -#define INETD_MODE 1 - -#if !(NON_INETD_MODE || INETD_MODE) - #error "NON_INETD_MODE or INETD_MODE (or both) must be enabled." -#endif - -/* Set this if you want to use the DROPBEAR_SMALL_CODE option. This can save -several kB in binary size however will make the symmetrical ciphers and hashes -slower, perhaps by 50%. Recommended for small systems that aren't doing -much traffic. */ -#define DROPBEAR_SMALL_CODE 1 - -/* Enable X11 Forwarding - server only */ -#define DROPBEAR_X11FWD 1 - -/* Enable TCP Fowarding */ -/* 'Local' is "-L" style (client listening port forwarded via server) - * 'Remote' is "-R" style (server listening port forwarded via client) */ - -#define DROPBEAR_CLI_LOCALTCPFWD 1 -#define DROPBEAR_CLI_REMOTETCPFWD 1 - -#define DROPBEAR_SVR_LOCALTCPFWD 1 -#define DROPBEAR_SVR_REMOTETCPFWD 1 - -/* Enable Authentication Agent Forwarding */ -#define DROPBEAR_SVR_AGENTFWD 1 -#define DROPBEAR_CLI_AGENTFWD 1 - - -/* Note: Both DROPBEAR_CLI_PROXYCMD and DROPBEAR_CLI_NETCAT must be set to - * allow multihop dbclient connections */ - -/* Allow using -J <proxycommand> to run the connection through a - pipe to a program, rather the normal TCP connection */ -#define DROPBEAR_CLI_PROXYCMD 1 - -/* Enable "Netcat mode" option. This will forward standard input/output - * to a remote TCP-forwarded connection */ -#define DROPBEAR_CLI_NETCAT 1 - -/* Whether to support "-c" and "-m" flags to choose ciphers/MACs at runtime */ -#define DROPBEAR_USER_ALGO_LIST 1 - -/* Encryption - at least one required. - * Protocol RFC requires 3DES and recommends AES128 for interoperability. - * Including multiple keysize variants the same cipher - * (eg AES256 as well as AES128) will result in a minimal size increase.*/ -#define DROPBEAR_AES128 1 -#define DROPBEAR_3DES 1 -#define DROPBEAR_AES256 1 -#define DROPBEAR_TWOFISH256 1 -#define DROPBEAR_TWOFISH128 1 -/* Compiling in Blowfish will add ~6kB to runtime heap memory usage */ -#define DROPBEAR_BLOWFISH 0 - -#if !(DROPBEAR_AES128 || DROPBEAR_3DES || DROPBEAR_AES256 || DROPBEAR_BLOWFISH \ - || DROPBEAR_TWOFISH256 || DROPBEAR_TWOFISH128) - #error "At least one encryption algorithm must be enabled; 3DES and AES128 are recommended." -#endif - -/* Enable CBC mode for ciphers. This has security issues though - * is the most compatible with older SSH implementations */ -#define DROPBEAR_ENABLE_CBC_MODE 1 - -/* Enable "Counter Mode" for ciphers. This is more secure than normal - * CBC mode against certain attacks. It is recommended for security - * and forwards compatibility */ -#define DROPBEAR_ENABLE_CTR_MODE 1 - -/* Twofish counter mode is disabled by default because it -has not been tested for interoperability with other SSH implementations. -If you test it please contact the Dropbear author */ -#define DROPBEAR_TWOFISH_CTR 0 - -/* Message integrity. sha2-256 is recommended as a default, - sha1 for compatibility */ -#define DROPBEAR_SHA1_HMAC 1 -#define DROPBEAR_SHA1_96_HMAC 1 -#define DROPBEAR_SHA2_256_HMAC 1 -/* Default is to include it is sha512 is being compiled in for ECDSA */ -#define DROPBEAR_SHA2_512_HMAC (DROPBEAR_ECDSA) - -/* XXX needed for fingerprints */ -#define DROPBEAR_MD5_HMAC 0 - -/* Hostkey/public key algorithms - at least one required, these are used - * for hostkey as well as for verifying signatures with pubkey auth. - * Removing either of these won't save very much space. - * RSA is recommended - * DSS may be necessary to connect to some systems though - is not recommended for new keys */ -#define DROPBEAR_RSA 1 -#define DROPBEAR_DSS 1 -/* ECDSA is significantly faster than RSA or DSS. Compiling in ECC - * code (either ECDSA or ECDH) increases binary size - around 30kB - * on x86-64 */ -#define DROPBEAR_ECDSA 1 - -#if !(DROPBEAR_RSA || DROPBEAR_DSS || DROPBEAR_ECDSA) - #error "At least one hostkey or public-key algorithm must be enabled; RSA is recommended." -#endif - -/* RSA must be >=1024 */ -#define DROPBEAR_DEFAULT_RSA_SIZE 2048 -/* DSS is always 1024 */ -/* ECDSA defaults to largest size configured, usually 521 */ - -/* Add runtime flag "-R" to generate hostkeys as-needed when the first - connection using that key type occurs. - This avoids the need to otherwise run "dropbearkey" and avoids some problems - with badly seeded /dev/urandom when systems first boot. */ -#define DROPBEAR_DELAY_HOSTKEY 1 - -/* Enable Curve25519 for key exchange. This is another elliptic - * curve method with good security properties. Increases binary size - * by ~8kB on x86-64 */ -#define DROPBEAR_CURVE25519 1 - -/* Enable elliptic curve Diffie Hellman key exchange, see note about - * ECDSA above */ -#define DROPBEAR_ECDH 1 - -/* Key exchange algorithm. - * group14_sha1 - 2048 bit, sha1 - * group14_sha256 - 2048 bit, sha2-256 - * group16 - 4096 bit, sha2-512 - * group1 - 1024 bit, sha1 - * - * group14 is supported by most implementations. - * group16 provides a greater strength level but is slower and increases binary size - * group1 is too small for security though is necessary if you need - compatibility with some implementations such as Dropbear versions < 0.53 - */ -#define DROPBEAR_DH_GROUP1 1 -#define DROPBEAR_DH_GROUP14_SHA1 1 -#define DROPBEAR_DH_GROUP14_SHA256 1 -#define DROPBEAR_DH_GROUP16 0 - -/* Control the memory/performance/compression tradeoff for zlib. - * Set windowBits=8 for least memory usage, see your system's - * zlib.h for full details. - * Default settings (windowBits=15) will use 256kB for compression - * windowBits=8 will use 129kB for compression. - * Both modes will use ~35kB for decompression (using windowBits=15 for - * interoperability) */ -#define DROPBEAR_ZLIB_WINDOW_BITS 15 - -/* Whether to do reverse DNS lookups. */ -#define DO_HOST_LOOKUP 0 - -/* Whether to print the message of the day (MOTD). */ -#define DO_MOTD 0 - -/* The MOTD file path */ -#define MOTD_FILENAME "/etc/motd" - -/* Authentication Types - at least one required. - RFC Draft requires pubkey auth, and recommends password */ - -/* Note: PAM auth is quite simple and only works for PAM modules which just do - * a simple "Login: " "Password: " (you can edit the strings in svr-authpam.c). - * It's useful for systems like OS X where standard password crypts don't work - * but there's an interface via a PAM module. It won't work for more complex - * PAM challenge/response. - * You can't enable both PASSWORD and PAM. */ - -/* PAM requires ./configure --enable-pam */ -#if defined(HAVE_LIBPAM) && !DROPBEAR_SVR_PASSWORD_AUTH - #define DROPBEAR_SVR_PAM_AUTH 1 -#else - #define DROPBEAR_SVR_PAM_AUTH 0 -#endif - -/* This requires crypt() */ -#if defined(HAVE_CRYPT) && !DROPBEAR_SVR_PAM_AUTH - #define DROPBEAR_SVR_PASSWORD_AUTH 1 -#else - #define DROPBEAR_SVR_PASSWORD_AUTH 0 -#endif - -#define DROPBEAR_SVR_PUBKEY_AUTH 1 - -#if !(DROPBEAR_SVR_PASSWORD_AUTH || DROPBEAR_SVR_PAM_AUTH || DROPBEAR_SVR_PUBKEY_AUTH) - #error "At least one server authentication type must be enabled; PUBKEY and PASSWORD are recommended." -#endif - -#if DROPBEAR_SVR_PASSWORD_AUTH && !HAVE_CRYPT - #error "DROPBEAR_SVR_PASSWORD_AUTH requires `crypt()'." -#endif - -#if DROPBEAR_SVR_PAM_AUTH - #if DISABLE_PAM - #error "DROPBEAR_SVR_PAM_AUTH requires 'configure --enable-pam' to succeed." - #endif - #if DROPBEAR_SVR_PASSWORD_AUTH - #error "DROPBEAR_SVR_PASSWORD_AUTH cannot be enabled at the same time as DROPBEAR_SVR_PAM_AUTH." - #endif -#endif - -/* Whether to take public key options in - * authorized_keys file into account */ -#define DROPBEAR_SVR_PUBKEY_OPTIONS 1 - -/* This requires getpass. */ -#ifdef HAVE_GETPASS - #define DROPBEAR_CLI_PASSWORD_AUTH 1 - #define DROPBEAR_CLI_INTERACT_AUTH 1 -#else - #define DROPBEAR_CLI_PASSWORD_AUTH 0 - #define DROPBEAR_CLI_INTERACT_AUTH 0 -#endif -#define DROPBEAR_CLI_PUBKEY_AUTH 1 - -#if !(DROPBEAR_CLI_PASSWORD_AUTH || DROPBEAR_CLI_PUBKEY_AUTH) - #error "At least one client authentication type must be enabled; PUBKEY and PASSWORD are recommended." -#endif - -/* A default argument for dbclient -i <privatekey>. -Homedir is prepended unless path begins with / */ -#define DROPBEAR_DEFAULT_CLI_AUTHKEY ".ssh/id_dropbear" - -/* This variable can be used to set a password for client - * authentication on the commandline. Beware of platforms - * that don't protect environment variables of processes etc. Also - * note that it will be provided for all "hidden" client-interactive - * style prompts - if you want something more sophisticated, use - * SSH_ASKPASS instead. Comment out this var to remove this functionality.*/ -#define DROPBEAR_USE_DROPBEAR_PASSWORD 1 - -/* Define this (as well as DROPBEAR_CLI_PASSWORD_AUTH) to allow the use of - * a helper program for the ssh client. The helper program should be - * specified in the SSH_ASKPASS environment variable, and dbclient - * should be run with DISPLAY set and no tty. The program should - * return the password on standard output */ -#define DROPBEAR_CLI_ASKPASS_HELPER 0 - -#if DROPBEAR_CLI_ASKPASS_HELPER - #define DROPBEAR_CLI_PASSWORD_AUTH 1 -#endif - -/* Save a network roundtrip by sendng a real auth request immediately after - * sending a query for the available methods. It is at the expense of < 100 - * bytes of extra network traffic. This is not yet enabled by default since it - * could cause problems with non-compliant servers */ -#define DROPBEAR_CLI_IMMEDIATE_AUTH 0 - -/* Source for randomness. This must be able to provide hundreds of bytes per SSH - * connection without blocking. In addition /dev/random is used for seeding - * rsa/dss key generation */ -#define DROPBEAR_URANDOM_DEV "/dev/urandom" - -/* Set this to use PRNGD or EGD instead of /dev/urandom or /dev/random */ -#define DROPBEAR_USE_PRNGD 0 -#define DROPBEAR_PRNGD_SOCKET "/var/run/dropbear-rng" - -/* Specify the number of clients we will allow to be connected but - * not yet authenticated. After this limit, connections are rejected */ -/* The first setting is per-IP, to avoid denial of service */ -#define MAX_UNAUTH_PER_IP 5 - -/* And then a global limit to avoid chewing memory if connections - * come from many IPs */ -#define MAX_UNAUTH_CLIENTS 30 - -/* Default maximum number of failed authentication tries (server option) */ -/* -T server option overrides */ -#define MAX_AUTH_TRIES 10 - -/* The default file to store the daemon's process ID, for shutdown - scripts etc. This can be overridden with the -P flag */ -#define DROPBEAR_PIDFILE "/var/run/dropbear.pid" - -/* The command to invoke for xauth when using X11 forwarding. - * "-q" for quiet */ -#define XAUTH_COMMAND "/usr/bin/xauth -q" - -#define DROPBEAR_SFTPSERVER 1 - -/* if you want to enable running an sftp server (such as the one included with - * OpenSSH), set the path below. If the path isn't defined, sftp will not - * be enabled */ -#define SFTPSERVER_PATH "/usr/libexec/sftp-server" - -/* This is used by the scp binary when used as a client binary. If you're - * not using the Dropbear client, you'll need to change it */ -#define DROPBEAR_PATH_SSH_PROGRAM "/usr/bin/dbclient" - -/* Whether to log commands executed by a client. This only logs the - * (single) command sent to the server, not what a user did in a - * shell/sftp session etc. */ -#define LOG_COMMANDS 0 - -/* Window size limits. These tend to be a trade-off between memory - usage and network performance: */ -/* Size of the network receive window. This amount of memory is allocated - as a per-channel receive buffer. Increasing this value can make a - significant difference to network performance. 24kB was empirically - chosen for a 100mbit ethernet network. The value can be altered at - runtime with the -W argument. */ -#define DEFAULT_RECV_WINDOW 24576 -/* Maximum size of a received SSH data packet - this _MUST_ be >= 32768 - in order to interoperate with other implementations */ -#define RECV_MAX_PAYLOAD_LEN 32768 -/* Maximum size of a transmitted data packet - this can be any value, - though increasing it may not make a significant difference. */ -#define TRANS_MAX_PAYLOAD_LEN 16384 - -/* Ensure that data is transmitted every KEEPALIVE seconds. This can -be overridden at runtime with -K. 0 disables keepalives */ -#define DEFAULT_KEEPALIVE 0 - -/* If this many KEEPALIVES are sent with no packets received from the -other side, exit. Not run-time configurable - if you have a need -for runtime configuration please mail the Dropbear list */ -#define DEFAULT_KEEPALIVE_LIMIT 3 - -/* Ensure that data is received within IDLE_TIMEOUT seconds. This can -be overridden at runtime with -I. 0 disables idle timeouts */ -#define DEFAULT_IDLE_TIMEOUT 0 - -/* The default path. This will often get replaced by the shell */ -#define DEFAULT_PATH "/usr/bin:/bin" - -/* Include verbose debug output, enabled with -v at runtime. - * This will add a reasonable amount to your executable size. */ -#define DEBUG_TRACE 0 - -#endif /* DROPBEAR_DEFAULT_OPTIONS_H_ */ |