dropbear: default_options.h annotate

annotate default_options.h @ 1659:d32bcb5c557d

Add Ed25519 support (#91) * Add support for Ed25519 as a public key type Ed25519 is a elliptic curve signature scheme that offers better security than ECDSA and DSA and good performance. It may be used for both user and host keys. OpenSSH key import and fuzzer are not supported yet. Initially inspired by Peter Szabo. * Add curve25519 and ed25519 fuzzers * Add import and export of Ed25519 keys

author	Vladislav Grishenko <themiron@users.noreply.github.com>
date	Wed, 11 Mar 2020 21:09:45 +0500
parents	aabde6f57fce
children	26e07f7f682a

rev	line source
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 #ifndef DROPBEAR_DEFAULT_OPTIONS_H_
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 #define DROPBEAR_DEFAULT_OPTIONS_H_
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 /*
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 > > > Read This < < <
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5
1521 198e2ee0f4b1 - Fix dependencies and remove old default_options.h from version control Matt Johnston <matt@ucc.asn.au> parents: 1517 diff changeset	6 default_options.h documents compile-time options, and provides default values.
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 Local customisation should be added to localoptions.h which is
1614 03df3b9f6048 mention localoptions.h being build directory, fix underscore in CHANGES Matt Johnston <matt@ucc.asn.au> parents: 1544 diff changeset	9 used if it exists in the build directory. Options defined there will override
03df3b9f6048 mention localoptions.h being build directory, fix underscore in CHANGES Matt Johnston <matt@ucc.asn.au> parents: 1544 diff changeset	10 any options in this file.
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	12 Options can also be defined with -DDROPBEAR_XXX=[0,1] in Makefile CFLAGS
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	14 IMPORTANT: Some options will require "make clean" after changes */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 #define DROPBEAR_DEFPORT "22"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 /* Listen on all interfaces */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 #define DROPBEAR_DEFADDRESS ""
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 /* Default hostkey paths - these can be specified on the command line */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 #define DSS_PRIV_FILENAME "/etc/dropbear/dropbear_dss_host_key"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 #define RSA_PRIV_FILENAME "/etc/dropbear/dropbear_rsa_host_key"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24 #define ECDSA_PRIV_FILENAME "/etc/dropbear/dropbear_ecdsa_host_key"
1659 d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1634 diff changeset	25 #define ED25519_PRIV_FILENAME "/etc/dropbear/dropbear_ed25519_host_key"
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 /* Set NON_INETD_MODE if you require daemon functionality (ie Dropbear listens
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28 * on chosen ports and keeps accepting connections. This is the default.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 *
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30 * Set INETD_MODE if you want to be able to run Dropbear with inetd (or
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 * similar), where it will use stdin/stdout for connections, and each process
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 * lasts for a single connection. Dropbear should be invoked with the -i flag
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33 * for inetd, and can only accept IPv4 connections.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 *
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 * Both of these flags can be defined at once, don't compile without at least
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 * one of them. */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 #define NON_INETD_MODE 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 #define INETD_MODE 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	40 /* Include verbose debug output, enabled with -v at runtime.
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	41 * This will add a reasonable amount to your executable size. */
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	42 #define DEBUG_TRACE 0
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 /* Set this if you want to use the DROPBEAR_SMALL_CODE option. This can save
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	45 * several kB in binary size however will make the symmetrical ciphers and hashes
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	46 * slower, perhaps by 50%. Recommended for small systems that aren't doing
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	47 * much traffic. */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 #define DROPBEAR_SMALL_CODE 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50 /* Enable X11 Forwarding - server only */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 #define DROPBEAR_X11FWD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 /* Enable TCP Fowarding */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 /* 'Local' is "-L" style (client listening port forwarded via server)
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 * 'Remote' is "-R" style (server listening port forwarded via client) */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56 #define DROPBEAR_CLI_LOCALTCPFWD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57 #define DROPBEAR_CLI_REMOTETCPFWD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	59 #define DROPBEAR_SVR_LOCALTCPFWD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 #define DROPBEAR_SVR_REMOTETCPFWD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62 /* Enable Authentication Agent Forwarding */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 #define DROPBEAR_SVR_AGENTFWD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64 #define DROPBEAR_CLI_AGENTFWD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 /* Note: Both DROPBEAR_CLI_PROXYCMD and DROPBEAR_CLI_NETCAT must be set to
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 * allow multihop dbclient connections */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 /* Allow using -J <proxycommand> to run the connection through a
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 pipe to a program, rather the normal TCP connection */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 #define DROPBEAR_CLI_PROXYCMD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73 /* Enable "Netcat mode" option. This will forward standard input/output
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 * to a remote TCP-forwarded connection */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75 #define DROPBEAR_CLI_NETCAT 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 /* Whether to support "-c" and "-m" flags to choose ciphers/MACs at runtime */
1499 2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1494 diff changeset	78 #define DROPBEAR_USER_ALGO_LIST 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80 /* Encryption - at least one required.
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	81 * AES128 should be enabled, some very old implementations might only
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	82 * support 3DES.
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	83 * Including both AES keysize variants (128 and 256) will result in
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	84 * a minimal size increase */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85 #define DROPBEAR_AES128 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86 #define DROPBEAR_3DES 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 #define DROPBEAR_AES256 1
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	88 #define DROPBEAR_TWOFISH256 0
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	89 #define DROPBEAR_TWOFISH128 0
1499 2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1494 diff changeset	90 /* Compiling in Blowfish will add ~6kB to runtime heap memory usage */
2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1494 diff changeset	91 #define DROPBEAR_BLOWFISH 0
2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1494 diff changeset	92
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93 /* Enable CBC mode for ciphers. This has security issues though
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	94 * is the most compatible with older SSH implementations */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95 #define DROPBEAR_ENABLE_CBC_MODE 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	97 /* Enable "Counter Mode" for ciphers. This is more secure than
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 * CBC mode against certain attacks. It is recommended for security
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 * and forwards compatibility */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100 #define DROPBEAR_ENABLE_CTR_MODE 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102 /* Message integrity. sha2-256 is recommended as a default,
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	103 sha1 for compatibility */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104 #define DROPBEAR_SHA1_HMAC 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105 #define DROPBEAR_SHA1_96_HMAC 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 #define DROPBEAR_SHA2_256_HMAC 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108 /* Hostkey/public key algorithms - at least one required, these are used
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109 * for hostkey as well as for verifying signatures with pubkey auth.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110 * Removing either of these won't save very much space.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111 * RSA is recommended
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112 * DSS may be necessary to connect to some systems though
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113 is not recommended for new keys */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 #define DROPBEAR_RSA 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115 #define DROPBEAR_DSS 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116 /* ECDSA is significantly faster than RSA or DSS. Compiling in ECC
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117 * code (either ECDSA or ECDH) increases binary size - around 30kB
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	118 * on x86-64 */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	119 #define DROPBEAR_ECDSA 1
1659 d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1634 diff changeset	120 /* Ed25519 is faster than ECDSA. Compiling in Ed25519 code increases
d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1634 diff changeset	121 binary size - around 7,5kB on x86-64 */
d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1634 diff changeset	122 #define DROPBEAR_ED25519 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123
1438 4f8eb331174f add configuration option for default RSA size. Matt Johnston <matt@ucc.asn.au> parents: 1295 diff changeset	124 /* RSA must be >=1024 */
4f8eb331174f add configuration option for default RSA size. Matt Johnston <matt@ucc.asn.au> parents: 1295 diff changeset	125 #define DROPBEAR_DEFAULT_RSA_SIZE 2048
4f8eb331174f add configuration option for default RSA size. Matt Johnston <matt@ucc.asn.au> parents: 1295 diff changeset	126 /* DSS is always 1024 */
4f8eb331174f add configuration option for default RSA size. Matt Johnston <matt@ucc.asn.au> parents: 1295 diff changeset	127 /* ECDSA defaults to largest size configured, usually 521 */
1659 d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1634 diff changeset	128 /* Ed25519 is always 256 */
1438 4f8eb331174f add configuration option for default RSA size. Matt Johnston <matt@ucc.asn.au> parents: 1295 diff changeset	129
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130 /* Add runtime flag "-R" to generate hostkeys as-needed when the first
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 connection using that key type occurs.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 This avoids the need to otherwise run "dropbearkey" and avoids some problems
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 with badly seeded /dev/urandom when systems first boot. */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 #define DROPBEAR_DELAY_HOSTKEY 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 /* Key exchange algorithm.
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	138
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139 * group14_sha1 - 2048 bit, sha1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140 * group14_sha256 - 2048 bit, sha2-256
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141 * group16 - 4096 bit, sha2-512
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 * group1 - 1024 bit, sha1
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	143 * curve25519 - elliptic curve DH
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	144 * ecdh - NIST elliptic curve DH (256, 384, 521)
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145 *
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	146 * group1 is too small for security though is necessary if you need
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	147 compatibility with some implementations such as Dropbear versions < 0.53
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 * group14 is supported by most implementations.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149 * group16 provides a greater strength level but is slower and increases binary size
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	150 * curve25519 and ecdh algorithms are faster than non-elliptic curve methods
1659 d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1634 diff changeset	151 * curve25519 increases binary size by ~2,5kB on x86-64
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	152 * including either ECDH or ECDSA increases binary size by ~30kB on x86-64
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	153
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	154 * Small systems should generally include either curve25519 or ecdh for performance.
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	155 * curve25519 is less widely supported but is faster
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156 */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 #define DROPBEAR_DH_GROUP14_SHA1 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158 #define DROPBEAR_DH_GROUP14_SHA256 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	159 #define DROPBEAR_DH_GROUP16 0
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	160 #define DROPBEAR_CURVE25519 1
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	161 #define DROPBEAR_ECDH 1
1544 d1a8a05216ff make group1 client-only Matt Johnston <matt@ucc.asn.au> parents: 1542 diff changeset	162 #define DROPBEAR_DH_GROUP1 1
d1a8a05216ff make group1 client-only Matt Johnston <matt@ucc.asn.au> parents: 1542 diff changeset	163
d1a8a05216ff make group1 client-only Matt Johnston <matt@ucc.asn.au> parents: 1542 diff changeset	164 /* When group1 is enabled it will only be allowed by Dropbear client
d1a8a05216ff make group1 client-only Matt Johnston <matt@ucc.asn.au> parents: 1542 diff changeset	165 not as a server, due to concerns over its strength. Set to 0 to allow
d1a8a05216ff make group1 client-only Matt Johnston <matt@ucc.asn.au> parents: 1542 diff changeset	166 group1 in Dropbear server too */
d1a8a05216ff make group1 client-only Matt Johnston <matt@ucc.asn.au> parents: 1542 diff changeset	167 #define DROPBEAR_DH_GROUP1_CLIENTONLY 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	168
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	169 /* Control the memory/performance/compression tradeoff for zlib.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	170 * Set windowBits=8 for least memory usage, see your system's
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171 * zlib.h for full details.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	172 * Default settings (windowBits=15) will use 256kB for compression
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	173 * windowBits=8 will use 129kB for compression.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	174 * Both modes will use ~35kB for decompression (using windowBits=15 for
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	175 * interoperability) */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	176 #define DROPBEAR_ZLIB_WINDOW_BITS 15
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	177
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	178 /* Whether to do reverse DNS lookups. */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	179 #define DO_HOST_LOOKUP 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	180
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	181 /* Whether to print the message of the day (MOTD). */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	182 #define DO_MOTD 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	183 #define MOTD_FILENAME "/etc/motd"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	184
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	185 /* Authentication Types - at least one required.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 RFC Draft requires pubkey auth, and recommends password */
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	187 #define DROPBEAR_SVR_PASSWORD_AUTH 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	188
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	189 /* Note: PAM auth is quite simple and only works for PAM modules which just do
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	190 * a simple "Login: " "Password: " (you can edit the strings in svr-authpam.c).
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	191 * It's useful for systems like OS X where standard password crypts don't work
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192 * but there's an interface via a PAM module. It won't work for more complex
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193 * PAM challenge/response.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194 * You can't enable both PASSWORD and PAM. */
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	195 #define DROPBEAR_SVR_PAM_AUTH 0
1499 2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1494 diff changeset	196
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	197 /* ~/.ssh/authorized_keys authentication */
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	198 #define DROPBEAR_SVR_PUBKEY_AUTH 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 /* Whether to take public key options in
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201 * authorized_keys file into account */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202 #define DROPBEAR_SVR_PUBKEY_OPTIONS 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203
1634 aabde6f57fce Add a sanity check for DROPBEAR_SVR_MULTIUSER==0 mode Matt Johnston <matt@ucc.asn.au> parents: 1633 diff changeset	204 /* Set this to 0 if your system does not have multiple user support.
aabde6f57fce Add a sanity check for DROPBEAR_SVR_MULTIUSER==0 mode Matt Johnston <matt@ucc.asn.au> parents: 1633 diff changeset	205 (Linux kernel CONFIG_MULTIUSER option)
aabde6f57fce Add a sanity check for DROPBEAR_SVR_MULTIUSER==0 mode Matt Johnston <matt@ucc.asn.au> parents: 1633 diff changeset	206 The resulting binary will not run on a normal system. */
1633 592a18dac250 Support servers without multiple user support (#76) Patrick Stewart <patstew@gmail.com> parents: 1617 diff changeset	207 #define DROPBEAR_SVR_MULTIUSER 1
592a18dac250 Support servers without multiple user support (#76) Patrick Stewart <patstew@gmail.com> parents: 1617 diff changeset	208
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	209 /* Client authentication options */
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	210 #define DROPBEAR_CLI_PASSWORD_AUTH 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211 #define DROPBEAR_CLI_PUBKEY_AUTH 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	212
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213 /* A default argument for dbclient -i <privatekey>.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	214 Homedir is prepended unless path begins with / */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	215 #define DROPBEAR_DEFAULT_CLI_AUTHKEY ".ssh/id_dropbear"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	217 /* Allow specifying the password for dbclient via the DROPBEAR_PASSWORD
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	218 * environment variable. */
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	219 #define DROPBEAR_USE_PASSWORD_ENV 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	221 /* Define this (as well as DROPBEAR_CLI_PASSWORD_AUTH) to allow the use of
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	222 * a helper program for the ssh client. The helper program should be
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223 * specified in the SSH_ASKPASS environment variable, and dbclient
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224 * should be run with DISPLAY set and no tty. The program should
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 * return the password on standard output */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226 #define DROPBEAR_CLI_ASKPASS_HELPER 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	228 /* Save a network roundtrip by sendng a real auth request immediately after
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	229 * sending a query for the available methods. This is not yet enabled by default
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	230 since it could cause problems with non-compliant servers */
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	231 #define DROPBEAR_CLI_IMMEDIATE_AUTH 0
1499 2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1494 diff changeset	232
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	233 /* Set this to use PRNGD or EGD instead of /dev/urandom */
1499 2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1494 diff changeset	234 #define DROPBEAR_USE_PRNGD 0
2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1494 diff changeset	235 #define DROPBEAR_PRNGD_SOCKET "/var/run/dropbear-rng"
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	236
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	237 /* Specify the number of clients we will allow to be connected but
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	238 * not yet authenticated. After this limit, connections are rejected */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	239 /* The first setting is per-IP, to avoid denial of service */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	240 #define MAX_UNAUTH_PER_IP 5
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	241
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	242 /* And then a global limit to avoid chewing memory if connections
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	243 * come from many IPs */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244 #define MAX_UNAUTH_CLIENTS 30
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	245
1445 a3a96dbf9a58 Use MAX_AUTH_TRIES rather than DEFAULT_AUTH_TRIES, don't limit argument range Matt Johnston <matt@ucc.asn.au> parents: 1442 diff changeset	246 /* Default maximum number of failed authentication tries (server option) */
a3a96dbf9a58 Use MAX_AUTH_TRIES rather than DEFAULT_AUTH_TRIES, don't limit argument range Matt Johnston <matt@ucc.asn.au> parents: 1442 diff changeset	247 /* -T server option overrides */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	248 #define MAX_AUTH_TRIES 10
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	249
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	250 /* The default file to store the daemon's process ID, for shutdown
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	251 scripts etc. This can be overridden with the -P flag */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	252 #define DROPBEAR_PIDFILE "/var/run/dropbear.pid"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	253
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	254 /* The command to invoke for xauth when using X11 forwarding.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	255 * "-q" for quiet */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	256 #define XAUTH_COMMAND "/usr/bin/xauth -q"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	257
1499 2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1494 diff changeset	258
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	259 /* if you want to enable running an sftp server (such as the one included with
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	260 * OpenSSH), set the path below and set DROPBEAR_SFTPSERVER.
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	261 * The sftp-server program is not provided by Dropbear itself */
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	262 #define DROPBEAR_SFTPSERVER 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	263 #define SFTPSERVER_PATH "/usr/libexec/sftp-server"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	264
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	265 /* This is used by the scp binary when used as a client binary. If you're
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	266 * not using the Dropbear client, you'll need to change it */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	267 #define DROPBEAR_PATH_SSH_PROGRAM "/usr/bin/dbclient"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	268
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	269 /* Whether to log commands executed by a client. This only logs the
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	270 * (single) command sent to the server, not what a user did in a
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	271 * shell/sftp session etc. */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	272 #define LOG_COMMANDS 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	273
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	274 /* Window size limits. These tend to be a trade-off between memory
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	275 usage and network performance: */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	276 /* Size of the network receive window. This amount of memory is allocated
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	277 as a per-channel receive buffer. Increasing this value can make a
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	278 significant difference to network performance. 24kB was empirically
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	279 chosen for a 100mbit ethernet network. The value can be altered at
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 runtime with the -W argument. */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	281 #define DEFAULT_RECV_WINDOW 24576
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	282 /* Maximum size of a received SSH data packet - this _MUST_ be >= 32768
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	283 in order to interoperate with other implementations */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284 #define RECV_MAX_PAYLOAD_LEN 32768
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	285 /* Maximum size of a transmitted data packet - this can be any value,
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	286 though increasing it may not make a significant difference. */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	287 #define TRANS_MAX_PAYLOAD_LEN 16384
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	288
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	289 /* Ensure that data is transmitted every KEEPALIVE seconds. This can
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290 be overridden at runtime with -K. 0 disables keepalives */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	291 #define DEFAULT_KEEPALIVE 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	292
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	293 /* If this many KEEPALIVES are sent with no packets received from the
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	294 other side, exit. Not run-time configurable - if you have a need
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	295 for runtime configuration please mail the Dropbear list */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	296 #define DEFAULT_KEEPALIVE_LIMIT 3
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	297
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	298 /* Ensure that data is received within IDLE_TIMEOUT seconds. This can
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	299 be overridden at runtime with -I. 0 disables idle timeouts */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	300 #define DEFAULT_IDLE_TIMEOUT 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	301
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	302 /* The default path. This will often get replaced by the shell */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	303 #define DEFAULT_PATH "/usr/bin:/bin"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	304
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	305 #endif /* DROPBEAR_DEFAULT_OPTIONS_H_ */

Mercurial > dropbear

annotate default_options.h @ 1659:d32bcb5c557d