dropbear: default_options.h annotate

annotate default_options.h @ 1897:fe68c0244b97

Use signature type not key type for debug message

author	Matt Johnston <matt@ucc.asn.au>
date	Tue, 22 Mar 2022 23:28:24 +0800
parents	40f8468ad4d4
children	13cb8cc1b0e4

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
1861 2b3a8026a6ce Add re-exec for server Matt Johnston <matt@ucc.asn.au> parents: 1855 diff changeset	40 /* By default Dropbear will re-execute itself for each incoming connection so
2b3a8026a6ce Add re-exec for server Matt Johnston <matt@ucc.asn.au> parents: 1855 diff changeset	41 that memory layout may be re-randomised (ASLR) - exploiting
2b3a8026a6ce Add re-exec for server Matt Johnston <matt@ucc.asn.au> parents: 1855 diff changeset	42 vulnerabilities becomes harder. Re-exec causes slightly more memory use
2b3a8026a6ce Add re-exec for server Matt Johnston <matt@ucc.asn.au> parents: 1855 diff changeset	43 per connection.
2b3a8026a6ce Add re-exec for server Matt Johnston <matt@ucc.asn.au> parents: 1855 diff changeset	44 This option is ignored on non-Linux platforms at present */
2b3a8026a6ce Add re-exec for server Matt Johnston <matt@ucc.asn.au> parents: 1855 diff changeset	45 #define DROPBEAR_REEXEC 1
2b3a8026a6ce Add re-exec for server Matt Johnston <matt@ucc.asn.au> parents: 1855 diff changeset	46
1891 40f8468ad4d4 Allow for DEBUG_TRACE value 0 - 5 HansH111 <hans@atbas.org> parents: 1861 diff changeset	47 /* Include verbose debug output, enabled with -v at runtime (repeat to increase).
40f8468ad4d4 Allow for DEBUG_TRACE value 0 - 5 HansH111 <hans@atbas.org> parents: 1861 diff changeset	48 * define which level of debug output you compile in
40f8468ad4d4 Allow for DEBUG_TRACE value 0 - 5 HansH111 <hans@atbas.org> parents: 1861 diff changeset	49 * TRACE1 - TRACE3 = approx 4 Kb (connection, remote identity, algos, auth type info)
40f8468ad4d4 Allow for DEBUG_TRACE value 0 - 5 HansH111 <hans@atbas.org> parents: 1861 diff changeset	50 * TRACE4 = approx 17 Kb (detailed before connection)
40f8468ad4d4 Allow for DEBUG_TRACE value 0 - 5 HansH111 <hans@atbas.org> parents: 1861 diff changeset	51 * TRACE5 = approx 8 Kb (detailed after connection) */
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	52 #define DEBUG_TRACE 0
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 /* 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	55 * 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	56 * 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	57 * much traffic. */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58 #define DROPBEAR_SMALL_CODE 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	59
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 /* Enable X11 Forwarding - server only */
1714 c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	61 #define DROPBEAR_X11FWD 0
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 /* Enable TCP Fowarding */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64 /* '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	65 * '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	66 #define DROPBEAR_CLI_LOCALTCPFWD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 #define DROPBEAR_CLI_REMOTETCPFWD 1
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 #define DROPBEAR_SVR_LOCALTCPFWD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 #define DROPBEAR_SVR_REMOTETCPFWD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72 /* Enable Authentication Agent Forwarding */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73 #define DROPBEAR_SVR_AGENTFWD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 #define DROPBEAR_CLI_AGENTFWD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76 /* 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	77 * allow multihop dbclient connections */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79 /* 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	80 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	81 #define DROPBEAR_CLI_PROXYCMD 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83 /* 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	84 * to a remote TCP-forwarded connection */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85 #define DROPBEAR_CLI_NETCAT 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 /* 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	88 #define DROPBEAR_USER_ALGO_LIST 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	89
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90 /* 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	91 * 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	92 * support 3DES.
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	93 * 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	94 * a minimal size increase */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95 #define DROPBEAR_AES128 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96 #define DROPBEAR_AES256 1
1714 c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	97 #define DROPBEAR_3DES 0
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	98 #define DROPBEAR_TWOFISH256 0
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	99 #define DROPBEAR_TWOFISH128 0
1499 2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1494 diff changeset	100
1714 c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	101 /* Enable Chacha20-Poly1305 authenticated encryption mode. This is
c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	102 * generally faster than AES256 on CPU w/o dedicated AES instructions,
c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	103 * having the same key size. Recommended.
c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	104 * Compiling in will add ~5,5kB to binary size on x86-64 */
c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	105 #define DROPBEAR_CHACHA20POLY1305 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106
1714 c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	107 /* Enable "Counter Mode" for ciphers. Recommended. */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108 #define DROPBEAR_ENABLE_CTR_MODE 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109
1714 c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	110 /* Enable CBC mode for ciphers. This has security issues though
c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	111 may be required for compatibility with old implementations */
c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	112 #define DROPBEAR_ENABLE_CBC_MODE 0
c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	113
1672 3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1660 diff changeset	114 /* Enable "Galois/Counter Mode" for ciphers. This authenticated
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1660 diff changeset	115 * encryption mode is combination of CTR mode and GHASH. Recommended
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1660 diff changeset	116 * for security and forwards compatibility, but slower than CTR on
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1660 diff changeset	117 * CPU w/o dedicated AES/GHASH instructions.
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1660 diff changeset	118 * Compiling in will add ~6kB to binary size on x86-64 */
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1660 diff changeset	119 #define DROPBEAR_ENABLE_GCM_MODE 0
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1660 diff changeset	120
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	121 /* 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	122 sha1 for compatibility */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123 #define DROPBEAR_SHA1_HMAC 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124 #define DROPBEAR_SHA2_256_HMAC 1
1714 c0f12eaf95c9 Disable by default 3des, cbc, hmac-sha1-96, x11 forwarding Matt Johnston <matt@ucc.asn.au> parents: 1713 diff changeset	125 #define DROPBEAR_SHA1_96_HMAC 0
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127 /* 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	128 * 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	129 * 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	130 * RSA is recommended
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 * 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	132 is not recommended for new keys */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 #define DROPBEAR_RSA 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 #define DROPBEAR_DSS 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 /* 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	136 * 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	137 * on x86-64 */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138 #define DROPBEAR_ECDSA 1
1855 35d504d59c05 Implement server-side support for sk-ecdsa U2F-backed keys (#142) egor-duda <egor-duda@users.noreply.github.com> parents: 1794 diff changeset	139 #define DROPBEAR_SK_ECDSA 1
1659 d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1634 diff changeset	140 /* 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	141 binary size - around 7,5kB on x86-64 */
d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1634 diff changeset	142 #define DROPBEAR_ED25519 1
1855 35d504d59c05 Implement server-side support for sk-ecdsa U2F-backed keys (#142) egor-duda <egor-duda@users.noreply.github.com> parents: 1794 diff changeset	143 #define DROPBEAR_SK_ED25519 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144
1438 4f8eb331174f add configuration option for default RSA size. Matt Johnston <matt@ucc.asn.au> parents: 1295 diff changeset	145 /* RSA must be >=1024 */
4f8eb331174f add configuration option for default RSA size. Matt Johnston <matt@ucc.asn.au> parents: 1295 diff changeset	146 #define DROPBEAR_DEFAULT_RSA_SIZE 2048
4f8eb331174f add configuration option for default RSA size. Matt Johnston <matt@ucc.asn.au> parents: 1295 diff changeset	147 /* DSS is always 1024 */
4f8eb331174f add configuration option for default RSA size. Matt Johnston <matt@ucc.asn.au> parents: 1295 diff changeset	148 /* 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	149 /* Ed25519 is always 256 */
1438 4f8eb331174f add configuration option for default RSA size. Matt Johnston <matt@ucc.asn.au> parents: 1295 diff changeset	150
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151 /* 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	152 connection using that key type occurs.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153 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	154 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	155 #define DROPBEAR_DELAY_HOSTKEY 1
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
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158 /* Key exchange algorithm.
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	159
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	160 * group14_sha1 - 2048 bit, sha1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161 * group14_sha256 - 2048 bit, sha2-256
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162 * group16 - 4096 bit, sha2-512
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	163 * group1 - 1024 bit, sha1
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	164 * curve25519 - elliptic curve DH
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	165 * 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	166 *
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	167 * 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	168 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	169 * group14 is supported by most implementations.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	170 * 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	171 * 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	172 * 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	173 * 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	174
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	175 * 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	176 * 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	177 */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	178 #define DROPBEAR_DH_GROUP14_SHA1 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	179 #define DROPBEAR_DH_GROUP14_SHA256 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	180 #define DROPBEAR_DH_GROUP16 0
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	181 #define DROPBEAR_CURVE25519 1
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	182 #define DROPBEAR_ECDH 1
1544 d1a8a05216ff make group1 client-only Matt Johnston <matt@ucc.asn.au> parents: 1542 diff changeset	183 #define DROPBEAR_DH_GROUP1 1
d1a8a05216ff make group1 client-only Matt Johnston <matt@ucc.asn.au> parents: 1542 diff changeset	184
d1a8a05216ff make group1 client-only Matt Johnston <matt@ucc.asn.au> parents: 1542 diff changeset	185 /* 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	186 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	187 group1 in Dropbear server too */
d1a8a05216ff make group1 client-only Matt Johnston <matt@ucc.asn.au> parents: 1542 diff changeset	188 #define DROPBEAR_DH_GROUP1_CLIENTONLY 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	189
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	190 /* 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	191 * 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	192 * zlib.h for full details.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193 * 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	194 * windowBits=8 will use 129kB for compression.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	195 * 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	196 * interoperability) */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	197 #define DROPBEAR_ZLIB_WINDOW_BITS 15
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	198
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199 /* Whether to do reverse DNS lookups. */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 #define DO_HOST_LOOKUP 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202 /* Whether to print the message of the day (MOTD). */
1660 26e07f7f682a MOTD enabled by default as the manpage says (#87) zciendor <37557036+zciendor@users.noreply.github.com> parents: 1659 diff changeset	203 #define DO_MOTD 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204 #define MOTD_FILENAME "/etc/motd"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206 /* Authentication Types - at least one required.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	207 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	208 #define DROPBEAR_SVR_PASSWORD_AUTH 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210 /* 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	211 * 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	212 * 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	213 * 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	214 * PAM challenge/response.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	215 * 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	216 #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	217
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	218 /* ~/.ssh/authorized_keys authentication */
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	219 #define DROPBEAR_SVR_PUBKEY_AUTH 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 /* Whether to take public key options in
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	222 * authorized_keys file into account */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223 #define DROPBEAR_SVR_PUBKEY_OPTIONS 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224
1634 aabde6f57fce Add a sanity check for DROPBEAR_SVR_MULTIUSER==0 mode Matt Johnston <matt@ucc.asn.au> parents: 1633 diff changeset	225 /* 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	226 (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	227 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	228 #define DROPBEAR_SVR_MULTIUSER 1
592a18dac250 Support servers without multiple user support (#76) Patrick Stewart <patstew@gmail.com> parents: 1617 diff changeset	229
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	230 /* Client authentication options */
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	231 #define DROPBEAR_CLI_PASSWORD_AUTH 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	232 #define DROPBEAR_CLI_PUBKEY_AUTH 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	233
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	234 /* A default argument for dbclient -i <privatekey>.
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	235 Homedir is prepended unless path begins with / */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	236 #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	237
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	238 /* 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	239 * environment variable. */
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	240 #define DROPBEAR_USE_PASSWORD_ENV 1
1295 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 /* 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	243 * 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	244 * 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	245 * 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	246 * return the password on standard output */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	247 #define DROPBEAR_CLI_ASKPASS_HELPER 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	248
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	249 /* 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	250 * 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	251 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	252 #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	253
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	254 /* 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	255 #define DROPBEAR_USE_PRNGD 0
2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1494 diff changeset	256 #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	257
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	258 /* 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	259 * 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	260 /* 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	261 #define MAX_UNAUTH_PER_IP 5
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	262
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	263 /* 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	264 * come from many IPs */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	265 #define MAX_UNAUTH_CLIENTS 30
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	266
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	267 /* 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	268 /* -T server option overrides */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	269 #define MAX_AUTH_TRIES 10
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	270
1794 ed20d805b332 Disable UNAUTH_CLOSE_DELAY by default Matt Johnston <matt@ucc.asn.au> parents: 1790 diff changeset	271 /* Delay introduced before closing an unauthenticated session (seconds).
ed20d805b332 Disable UNAUTH_CLOSE_DELAY by default Matt Johnston <matt@ucc.asn.au> parents: 1790 diff changeset	272 Disabled by default, can be set to say 30 seconds to reduce the speed
ed20d805b332 Disable UNAUTH_CLOSE_DELAY by default Matt Johnston <matt@ucc.asn.au> parents: 1790 diff changeset	273 of password brute forcing. Note that there is a risk of denial of
ed20d805b332 Disable UNAUTH_CLOSE_DELAY by default Matt Johnston <matt@ucc.asn.au> parents: 1790 diff changeset	274 service by setting this */
ed20d805b332 Disable UNAUTH_CLOSE_DELAY by default Matt Johnston <matt@ucc.asn.au> parents: 1790 diff changeset	275 #define UNAUTH_CLOSE_DELAY 0
1790 42745af83b7d Introduce extra delay before closing unauthenticated sessions Thomas De Schampheleire <thomas.de_schampheleire@nokia.com> parents: 1714 diff changeset	276
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	277 /* 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	278 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	279 #define DROPBEAR_PIDFILE "/var/run/dropbear.pid"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	281 /* 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	282 * "-q" for quiet */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	283 #define XAUTH_COMMAND "/usr/bin/xauth -q"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284
1499 2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1494 diff changeset	285
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	286 /* 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	287 * 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	288 * 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	289 #define DROPBEAR_SFTPSERVER 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290 #define SFTPSERVER_PATH "/usr/libexec/sftp-server"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	291
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	292 /* 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	293 * 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	294 #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	295
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	296 /* 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	297 * (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	298 * shell/sftp session etc. */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	299 #define LOG_COMMANDS 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	300
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	301 /* 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	302 usage and network performance: */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	303 /* 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	304 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	305 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	306 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	307 runtime with the -W argument. */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	308 #define DEFAULT_RECV_WINDOW 24576
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	309 /* 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	310 in order to interoperate with other implementations */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	311 #define RECV_MAX_PAYLOAD_LEN 32768
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	312 /* 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	313 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	314 #define TRANS_MAX_PAYLOAD_LEN 16384
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	315
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	316 /* 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	317 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	318 #define DEFAULT_KEEPALIVE 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	319
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	320 /* 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	321 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	322 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	323 #define DEFAULT_KEEPALIVE_LIMIT 3
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	324
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	325 /* 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	326 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	327 #define DEFAULT_IDLE_TIMEOUT 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	328
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	329 /* 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	330 #define DEFAULT_PATH "/usr/bin:/bin"
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	331
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	332 #endif /* DROPBEAR_DEFAULT_OPTIONS_H_ */

Mercurial > dropbear

annotate default_options.h @ 1897:fe68c0244b97