dropbear: sysoptions.h annotate

annotate sysoptions.h @ 1916:3f4cdf839a1a

Make SHA1 optional, implement SHA256 fingerprints SHA256 is always compiled and only enable SHA1 when needed. Fingerprints are always SHA256: base64 format, md5 and sha1 are removed. dbrandom now uses sha256 its hash function.

author	Matt Johnston <matt@ucc.asn.au>
date	Wed, 30 Mar 2022 11:44:04 +0800
parents	13cb8cc1b0e4
children	77bc00dcc19f

rev	line source
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 /*******************************************************************
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 * You shouldn't edit this file unless you know you need to.
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 * This file is only included from options.h
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 *******************************************************************/
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 #ifndef DROPBEAR_VERSION
1761 4b984c42372d Changelog for 2020.81 Matt Johnston <matt@ucc.asn.au> parents: 1753 diff changeset	7 #define DROPBEAR_VERSION "2020.81"
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 #endif
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 #define LOCAL_IDENT "SSH-2.0-dropbear_" DROPBEAR_VERSION
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 #define PROGNAME "dropbear"
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 /* Spec recommends after one hour or 1 gigabyte of data. One hour
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 * is a bit too verbose, so we try 8 hours */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 #ifndef KEX_REKEY_TIMEOUT
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 #define KEX_REKEY_TIMEOUT (3600 * 8)
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 #endif
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 #ifndef KEX_REKEY_DATA
887 0459ff21e320 Back out accidentally committed files Matt Johnston <matt@ucc.asn.au> parents: 886 diff changeset	19 #define KEX_REKEY_DATA (1<<30) /* 2^30 == 1GB, this value must be < INT_MAX */
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 #endif
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 /* Close connections to clients which haven't authorised after AUTH_TIMEOUT */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 #ifndef AUTH_TIMEOUT
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 #define AUTH_TIMEOUT 300 /* we choose 5 minutes */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24 #endif
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	26 #define DROPBEAR_SVR_PUBKEY_OPTIONS_BUILT ((DROPBEAR_SVR_PUBKEY_AUTH) && (DROPBEAR_SVR_PUBKEY_OPTIONS))
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	27
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	28 #if !(NON_INETD_MODE \|\| INETD_MODE)
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	29 #error "NON_INETD_MODE or INETD_MODE (or both) must be enabled."
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	30 #endif
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	31
1861 2b3a8026a6ce Add re-exec for server Matt Johnston <matt@ucc.asn.au> parents: 1855 diff changeset	32 /* Would probably work on freebsd but hasn't been tested */
1862 6f265a35159a Fix -Wexpansion-to-defined failure on clang Matt Johnston <matt@ucc.asn.au> parents: 1861 diff changeset	33 #if defined(HAVE_FEXECVE) && DROPBEAR_REEXEC && defined(__linux__)
6f265a35159a Fix -Wexpansion-to-defined failure on clang Matt Johnston <matt@ucc.asn.au> parents: 1861 diff changeset	34 #define DROPBEAR_DO_REEXEC 1
6f265a35159a Fix -Wexpansion-to-defined failure on clang Matt Johnston <matt@ucc.asn.au> parents: 1861 diff changeset	35 #else
6f265a35159a Fix -Wexpansion-to-defined failure on clang Matt Johnston <matt@ucc.asn.au> parents: 1861 diff changeset	36 #define DROPBEAR_DO_REEXEC 0
6f265a35159a Fix -Wexpansion-to-defined failure on clang Matt Johnston <matt@ucc.asn.au> parents: 1861 diff changeset	37 #endif
1861 2b3a8026a6ce Add re-exec for server Matt Johnston <matt@ucc.asn.au> parents: 1855 diff changeset	38
746 465fefc4f6e0 Put some #ifdef options around first-follows options in case they Matt Johnston <matt@ucc.asn.au> parents: 745 diff changeset	39 /* A client should try and send an initial key exchange packet guessing
465fefc4f6e0 Put some #ifdef options around first-follows options in case they Matt Johnston <matt@ucc.asn.au> parents: 745 diff changeset	40 * the algorithm that will match - saves a round trip connecting, has little
465fefc4f6e0 Put some #ifdef options around first-follows options in case they Matt Johnston <matt@ucc.asn.au> parents: 745 diff changeset	41 * overhead if the guess was "wrong". */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	42 #ifndef DROPBEAR_KEX_FIRST_FOLLOWS
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	43 #define DROPBEAR_KEX_FIRST_FOLLOWS 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	44 #endif
746 465fefc4f6e0 Put some #ifdef options around first-follows options in case they Matt Johnston <matt@ucc.asn.au> parents: 745 diff changeset	45 /* Use protocol extension to allow "first follows" to succeed more frequently.
465fefc4f6e0 Put some #ifdef options around first-follows options in case they Matt Johnston <matt@ucc.asn.au> parents: 745 diff changeset	46 * This is currently Dropbear-specific but will gracefully fallback when connecting
465fefc4f6e0 Put some #ifdef options around first-follows options in case they Matt Johnston <matt@ucc.asn.au> parents: 745 diff changeset	47 * to other implementations. */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	48 #ifndef DROPBEAR_KEXGUESS2
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	49 #define DROPBEAR_KEXGUESS2 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	50 #endif
746 465fefc4f6e0 Put some #ifdef options around first-follows options in case they Matt Johnston <matt@ucc.asn.au> parents: 745 diff changeset	51
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 /* Minimum key sizes for DSS and RSA */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 #ifndef MIN_DSS_KEYLEN
1414 9236e7120c3e increase min DSS and RSA lengths Matt Johnston <matt@ucc.asn.au> parents: 1342 diff changeset	54 #define MIN_DSS_KEYLEN 1024
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 #endif
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56 #ifndef MIN_RSA_KEYLEN
1414 9236e7120c3e increase min DSS and RSA lengths Matt Johnston <matt@ucc.asn.au> parents: 1342 diff changeset	57 #define MIN_RSA_KEYLEN 1024
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58 #endif
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	59
1832 a974a80f5f44 Banner size should account for newlines Matt Johnston <matt@codeconstruct.com.au> parents: 1831 diff changeset	60 #define MAX_BANNER_SIZE 2050 /* this is 2580 chars, any more is foolish /
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61 #define MAX_BANNER_LINES 20 /* How many lines the client will display */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 /* the number of NAME=VALUE pairs to malloc for environ, if we don't have
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64 * the clearenv() function */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65 #define ENV_SIZE 100
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66
1138 cc3916a7afd9 increase MAX_CMD_LEN to 9000 Matt Johnston <matt@ucc.asn.au> parents: 1084 diff changeset	67 #define MAX_CMD_LEN 9000 /* max length of a command */
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68 #define MAX_TERM_LEN 200 /* max length of TERM name */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 #define MAX_HOST_LEN 254 /* max hostname len for tcp fwding */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 #define MAX_IP_LEN 15 /* strlen("255.255.255.255") == 15 */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73 #define DROPBEAR_MAX_PORTS 10 /* max number of ports which can be specified,
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 ipv4 and ipv6 don't count twice */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76 /* Each port might have at least a v4 and a v6 address */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 #define MAX_LISTEN_ADDR (DROPBEAR_MAX_PORTS*3)
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79 #define _PATH_TTY "/dev/tty"
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81 #define _PATH_CP "/bin/cp"
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82
722 4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient Matt Johnston <matt@ucc.asn.au> parents: 718 diff changeset	83 #define DROPBEAR_ESCAPE_CHAR '~'
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient Matt Johnston <matt@ucc.asn.au> parents: 718 diff changeset	84
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85 /* success/failure defines */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86 #define DROPBEAR_SUCCESS 0
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 #define DROPBEAR_FAILURE -1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	88
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	89 #define DROPBEAR_PASSWORD_ENV "DROPBEAR_PASSWORD"
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90
1537 6a83b1944432 Fix restricted group code for BSDs, move to separate function Matt Johnston <matt@ucc.asn.au> parents: 1517 diff changeset	91 #define DROPBEAR_NGROUP_MAX 1024
6a83b1944432 Fix restricted group code for BSDs, move to separate function Matt Johnston <matt@ucc.asn.au> parents: 1517 diff changeset	92
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93 /* Required for pubkey auth */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	94 #define DROPBEAR_SIGNKEY_VERIFY ((DROPBEAR_SVR_PUBKEY_AUTH) \|\| (DROPBEAR_CLIENT))
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95
1831 0a3d02c66bf6 Comment on reason for DROPBEAR_MAX_PASSWORD_LEN limit Matt Johnston <matt@codeconstruct.com.au> parents: 1761 diff changeset	96 /* crypt(password) must take less time than the auth failure delay
0a3d02c66bf6 Comment on reason for DROPBEAR_MAX_PASSWORD_LEN limit Matt Johnston <matt@codeconstruct.com.au> parents: 1761 diff changeset	97 (250ms set in svr-auth.c). On Linux the delay depends on
0a3d02c66bf6 Comment on reason for DROPBEAR_MAX_PASSWORD_LEN limit Matt Johnston <matt@codeconstruct.com.au> parents: 1761 diff changeset	98 password length, 100 characters here was empirically derived.
0a3d02c66bf6 Comment on reason for DROPBEAR_MAX_PASSWORD_LEN limit Matt Johnston <matt@codeconstruct.com.au> parents: 1761 diff changeset	99
0a3d02c66bf6 Comment on reason for DROPBEAR_MAX_PASSWORD_LEN limit Matt Johnston <matt@codeconstruct.com.au> parents: 1761 diff changeset	100 If a longer password is allowed Dropbear cannot compensate
0a3d02c66bf6 Comment on reason for DROPBEAR_MAX_PASSWORD_LEN limit Matt Johnston <matt@codeconstruct.com.au> parents: 1761 diff changeset	101 for the crypt time which will expose which usernames exist */
1640 228b086794b7 limit password length to 100 Matt Johnston <matt@ucc.asn.au> parents: 1617 diff changeset	102 #define DROPBEAR_MAX_PASSWORD_LEN 100
228b086794b7 limit password length to 100 Matt Johnston <matt@ucc.asn.au> parents: 1617 diff changeset	103
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104 #define SHA1_HASH_SIZE 20
1855 35d504d59c05 Implement server-side support for sk-ecdsa U2F-backed keys (#142) egor-duda <egor-duda@users.noreply.github.com> parents: 1834 diff changeset	105 #define SHA256_HASH_SIZE 32
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 #define MD5_HASH_SIZE 16
855 04ede40a529a - Some fixes for old compilers like tru64 v4 from Daniel Richard G. Matt Johnston <matt@ucc.asn.au> parents: 850 diff changeset	107 #define MAX_HASH_SIZE 64 /* sha512 */
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108
1672 3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	109 #if DROPBEAR_CHACHA20POLY1305
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	110 #define MAX_KEY_LEN 64 /* 2 x 256 bits for chacha20 */
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	111 #else
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112 #define MAX_KEY_LEN 32 /* 256 bits for aes256 etc */
1672 3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	113 #endif
762 a78a38e402d1 - Fix various hardcoded uses of SHA1 Matt Johnston <matt@ucc.asn.au> parents: 761 diff changeset	114 #define MAX_IV_LEN 20 /* must be same as max blocksize, */
715 cd3d3c63d189 Make hmac-sha2-256 and hmac-sha2-512 work Matt Johnston <matt@ucc.asn.au> parents: 710 diff changeset	115
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	116 #if DROPBEAR_SHA2_512_HMAC
715 cd3d3c63d189 Make hmac-sha2-256 and hmac-sha2-512 work Matt Johnston <matt@ucc.asn.au> parents: 710 diff changeset	117 #define MAX_MAC_LEN 64
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	118 #elif DROPBEAR_SHA2_256_HMAC
715 cd3d3c63d189 Make hmac-sha2-256 and hmac-sha2-512 work Matt Johnston <matt@ucc.asn.au> parents: 710 diff changeset	119 #define MAX_MAC_LEN 32
679 03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 668 diff changeset	120 #else
715 cd3d3c63d189 Make hmac-sha2-256 and hmac-sha2-512 work Matt Johnston <matt@ucc.asn.au> parents: 710 diff changeset	121 #define MAX_MAC_LEN 20
679 03073a27abb3 - Add hmac-sha2-256 and hmac-sha2-512. Needs debugging, seems to be Matt Johnston <matt@ucc.asn.au> parents: 668 diff changeset	122 #endif
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123
1517 7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	124 /* sha2-512 is not necessary unless unforseen problems arise with sha2-256 */
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	125 #ifndef DROPBEAR_SHA2_512_HMAC
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	126 #define DROPBEAR_SHA2_512_HMAC 0
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	127 #endif
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	128
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	129 /* might be needed for compatibility with very old implementations */
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	130 #ifndef DROPBEAR_MD5_HMAC
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	131 #define DROPBEAR_MD5_HMAC 0
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	132 #endif
7c7c5326ad73 clean up some default options Matt Johnston <matt@ucc.asn.au> parents: 1514 diff changeset	133
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	134 #define DROPBEAR_ECC ((DROPBEAR_ECDH) \|\| (DROPBEAR_ECDSA))
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	135
838 4365e12c68e6 A few small fixes for ECC compilation Matt Johnston <matt@ucc.asn.au> parents: 835 diff changeset	136 /* Debian doesn't define this in system headers */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	137 #if !defined(LTM_DESC) && (DROPBEAR_ECC)
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	138 #define LTM_DESC
869 c63e7644db60 Only define LTM_DESC if it isn't already Matt Johnston <matt@ucc.asn.au> parents: 861 diff changeset	139 #endif
755 b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 722 diff changeset	140
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	141 #define DROPBEAR_ECC_256 (DROPBEAR_ECC)
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	142 #define DROPBEAR_ECC_384 (DROPBEAR_ECC)
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	143 #define DROPBEAR_ECC_521 (DROPBEAR_ECC)
756 bf9dc2d9c2b1 more bits on ecc branch Matt Johnston <matt@ucc.asn.au> parents: 755 diff changeset	144
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	145 #define DROPBEAR_LTC_PRNG (DROPBEAR_ECC)
761 ac2158e3e403 ecc kind of works, needs fixing/testing Matt Johnston <matt@ucc.asn.au> parents: 759 diff changeset	146
850 7507b174bba0 - Make curve25519 work after fixing a typo, interoperates with OpenSSH Matt Johnston <matt@ucc.asn.au> parents: 847 diff changeset	147 /* RSA can be vulnerable to timing attacks which use the time required for
7507b174bba0 - Make curve25519 work after fixing a typo, interoperates with OpenSSH Matt Johnston <matt@ucc.asn.au> parents: 847 diff changeset	148 * signing to guess the private key. Blinding avoids this attack, though makes
7507b174bba0 - Make curve25519 work after fixing a typo, interoperates with OpenSSH Matt Johnston <matt@ucc.asn.au> parents: 847 diff changeset	149 * signing operations slightly slower. */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	150 #define DROPBEAR_RSA_BLINDING 1
850 7507b174bba0 - Make curve25519 work after fixing a typo, interoperates with OpenSSH Matt Johnston <matt@ucc.asn.au> parents: 847 diff changeset	151
1674 ba6fc7afe1c5 use sigtype where appropriate Matt Johnston <matt@ucc.asn.au> parents: 1659 diff changeset	152 #ifndef DROPBEAR_RSA_SHA1
ba6fc7afe1c5 use sigtype where appropriate Matt Johnston <matt@ucc.asn.au> parents: 1659 diff changeset	153 #define DROPBEAR_RSA_SHA1 DROPBEAR_RSA
ba6fc7afe1c5 use sigtype where appropriate Matt Johnston <matt@ucc.asn.au> parents: 1659 diff changeset	154 #endif
ba6fc7afe1c5 use sigtype where appropriate Matt Johnston <matt@ucc.asn.au> parents: 1659 diff changeset	155 #ifndef DROPBEAR_RSA_SHA256
ba6fc7afe1c5 use sigtype where appropriate Matt Johnston <matt@ucc.asn.au> parents: 1659 diff changeset	156 #define DROPBEAR_RSA_SHA256 DROPBEAR_RSA
ba6fc7afe1c5 use sigtype where appropriate Matt Johnston <matt@ucc.asn.au> parents: 1659 diff changeset	157 #endif
ba6fc7afe1c5 use sigtype where appropriate Matt Johnston <matt@ucc.asn.au> parents: 1659 diff changeset	158
847 f4bb964c8678 Add '-R' for delayed hostkey option Matt Johnston <matt@ucc.asn.au> parents: 838 diff changeset	159 /* hashes which will be linked and registered */
1916 3f4cdf839a1a Make SHA1 optional, implement SHA256 fingerprints Matt Johnston <matt@ucc.asn.au> parents: 1915 diff changeset	160 #define DROPBEAR_SHA1 (DROPBEAR_RSA_SHA1 \|\| DROPBEAR_DSS \
3f4cdf839a1a Make SHA1 optional, implement SHA256 fingerprints Matt Johnston <matt@ucc.asn.au> parents: 1915 diff changeset	161 \|\| DROPBEAR_SHA1_HMAC \|\| DROPBEAR_SHA1_96_HMAC \
3f4cdf839a1a Make SHA1 optional, implement SHA256 fingerprints Matt Johnston <matt@ucc.asn.au> parents: 1915 diff changeset	162 \|\| DROPBEAR_DH_GROUP1 \|\| DROPBEAR_DH_GROUP14_SHA1 )
3f4cdf839a1a Make SHA1 optional, implement SHA256 fingerprints Matt Johnston <matt@ucc.asn.au> parents: 1915 diff changeset	163 /* sha256 is always used for fingerprints and dbrandom */
3f4cdf839a1a Make SHA1 optional, implement SHA256 fingerprints Matt Johnston <matt@ucc.asn.au> parents: 1915 diff changeset	164 #define DROPBEAR_SHA256 1
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	165 #define DROPBEAR_SHA384 (DROPBEAR_ECC_384)
847 f4bb964c8678 Add '-R' for delayed hostkey option Matt Johnston <matt@ucc.asn.au> parents: 838 diff changeset	166 /* LTC SHA384 depends on SHA512 */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	167 #define DROPBEAR_SHA512 ((DROPBEAR_SHA2_512_HMAC) \|\| (DROPBEAR_ECC_521) \
1659 d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1654 diff changeset	168 \|\| (DROPBEAR_SHA384) \|\| (DROPBEAR_DH_GROUP16) \
d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1654 diff changeset	169 \|\| (DROPBEAR_ED25519))
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	170 #define DROPBEAR_MD5 (DROPBEAR_MD5_HMAC)
759 76fba0856749 More changes for KEX and ECDH. Set up hash descriptors, make ECC code work, Matt Johnston <matt@ucc.asn.au> parents: 756 diff changeset	171
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	172 #define DROPBEAR_DH_GROUP14 ((DROPBEAR_DH_GROUP14_SHA256) \|\| (DROPBEAR_DH_GROUP14_SHA1))
1294 56aba7dedbea options for disabling "normal" DH Matt Johnston <matt@ucc.asn.au> parents: 1293 diff changeset	173
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	174 #define DROPBEAR_NORMAL_DH ((DROPBEAR_DH_GROUP1) \|\| (DROPBEAR_DH_GROUP14) \|\| (DROPBEAR_DH_GROUP16))
1248 739b3909c499 Get rid of group15, move group16 to sha512. Matt Johnston <matt@ucc.asn.au> parents: 1230 diff changeset	175
1681 435cfb9ec96e send and handle SSH_MSG_EXT_INFO only at the correct point Matt Johnston <matt@ucc.asn.au> parents: 1674 diff changeset	176 /* Dropbear only uses server-sig-algs, only needed if we have rsa-sha256 pubkey auth */
435cfb9ec96e send and handle SSH_MSG_EXT_INFO only at the correct point Matt Johnston <matt@ucc.asn.au> parents: 1674 diff changeset	177 #define DROPBEAR_EXT_INFO ((DROPBEAR_RSA_SHA256) \
435cfb9ec96e send and handle SSH_MSG_EXT_INFO only at the correct point Matt Johnston <matt@ucc.asn.au> parents: 1674 diff changeset	178 && ((DROPBEAR_CLI_PUBKEY_AUTH) \|\| (DROPBEAR_SVR_PUBKEY_AUTH)))
435cfb9ec96e send and handle SSH_MSG_EXT_INFO only at the correct point Matt Johnston <matt@ucc.asn.au> parents: 1674 diff changeset	179
847 f4bb964c8678 Add '-R' for delayed hostkey option Matt Johnston <matt@ucc.asn.au> parents: 838 diff changeset	180 /* roughly 2x 521 bits */
755 b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 722 diff changeset	181 #define MAX_ECC_SIZE 140
b07eb3dc23ec refactor kexdh code a bit, start working on ecdh etc Matt Johnston <matt@ucc.asn.au> parents: 722 diff changeset	182
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	183 #define MAX_NAME_LEN 64 /* maximum length of a protocol name, isn't
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	184 explicitly specified for all protocols (just
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	185 for algos) but seems valid */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186
1753 7c0fcd19e492 Increase MAX_PROPOSED_ALGO to 50, warn if exceeded Matt Johnston <matt@ucc.asn.au> parents: 1734 diff changeset	187 #define MAX_PROPOSED_ALGO 50
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	188
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	189 /* size/count limits */
603 3aa74a4d83ae Refer to RFCs rather than drafts, update some section references Matt Johnston <matt@ucc.asn.au> parents: 598 diff changeset	190 /* From transport rfc */
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	191 #define MIN_PACKET_LEN 16
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193 #define RECV_MAX_PACKET_LEN (MAX(35000, ((RECV_MAX_PAYLOAD_LEN)+100)))
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	195 /* for channel code */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196 #define TRANS_MAX_WINDOW 500000000 /* 500MB is sufficient, stopping overflow */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	197 #define TRANS_MAX_WIN_INCR 500000000 /* overflow prevention */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	198
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199 #define RECV_WINDOWEXTEND (opts.recv_window / 3) /* We send a "window extend" every
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 RECV_WINDOWEXTEND bytes */
1834 94dc11094e26 Increase max window size to 10MB, fallback rather than Matt Johnston <matt@codeconstruct.com.au> parents: 1832 diff changeset	201 #define MAX_RECV_WINDOW (1010241024) /* 10 MB should be enough */
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202
1169 41a5820cab8b Increase channel limit to 1000 Matt Johnston <matt@ucc.asn.au> parents: 1147 diff changeset	203 #define MAX_CHANNELS 1000 /* simple mem restriction, includes each tcp/x11
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204 connection, so can't be _too_ small */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205
1138 cc3916a7afd9 increase MAX_CMD_LEN to 9000 Matt Johnston <matt@ucc.asn.au> parents: 1084 diff changeset	206 #define MAX_STRING_LEN (MAX(MAX_CMD_LEN, 2400)) /* Sun SSH needs 2400 for algos,
cc3916a7afd9 increase MAX_CMD_LEN to 9000 Matt Johnston <matt@ucc.asn.au> parents: 1084 diff changeset	207 MAX_CMD_LEN is usually longer */
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	208
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209 /* For a 4096 bit DSS key, empirically determined */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210 #define MAX_PUBKEY_SIZE 1700
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211 /* For a 4096 bit DSS key, empirically determined */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	212 #define MAX_PRIVKEY_SIZE 1700
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213
1659 d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1654 diff changeset	214 #define MAX_HOSTKEYS 4
795 7f604f9b3756 ecdsa is working Matt Johnston <matt@ucc.asn.au> parents: 794 diff changeset	215
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216 /* The maximum size of the bignum portion of the kexhash buffer */
603 3aa74a4d83ae Refer to RFCs rather than drafts, update some section references Matt Johnston <matt@ucc.asn.au> parents: 598 diff changeset	217 /* Sect. 8 of the transport rfc 4253, K_S + e + f + K */
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	218 #define KEXHASHBUF_MAX_INTS (1700 + 130 + 130 + 130)
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	219
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220 #define DROPBEAR_MAX_SOCKS 2 /* IPv4, IPv6 are all we'll get for now. Revisit
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	221 in a few years time.... */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	222
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223 #define DROPBEAR_MAX_CLI_PASS 1024
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 #define DROPBEAR_MAX_CLI_INTERACT_PROMPTS 80 /* The number of prompts we'll
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226 accept for keyb-interactive
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227 auth */
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	228
883 ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 878 diff changeset	229
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	230 #define DROPBEAR_AES ((DROPBEAR_AES256) \|\| (DROPBEAR_AES128))
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	231
1672 3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	232 #define DROPBEAR_AEAD_MODE ((DROPBEAR_CHACHA20POLY1305) \|\| (DROPBEAR_ENABLE_GCM_MODE))
3a97f14c0235 Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1659 diff changeset	233
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	234 #define DROPBEAR_CLI_ANYTCPFWD ((DROPBEAR_CLI_REMOTETCPFWD) \|\| (DROPBEAR_CLI_LOCALTCPFWD))
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	235
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	236 #define DROPBEAR_TCP_ACCEPT ((DROPBEAR_CLI_LOCALTCPFWD) \|\| (DROPBEAR_SVR_REMOTETCPFWD))
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	237
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	238 #define DROPBEAR_LISTENERS \
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	239 ((DROPBEAR_CLI_REMOTETCPFWD) \|\| (DROPBEAR_CLI_LOCALTCPFWD) \|\| \
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	240 (DROPBEAR_SVR_REMOTETCPFWD) \|\| (DROPBEAR_SVR_LOCALTCPFWD) \|\| \
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	241 (DROPBEAR_SVR_AGENTFWD) \|\| (DROPBEAR_X11FWD))
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	242
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	243 #define DROPBEAR_CLI_MULTIHOP ((DROPBEAR_CLI_NETCAT) && (DROPBEAR_CLI_PROXYCMD))
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244
1499 2d450c1056e3 options: Complete the transition to numeric toggles (`#if') Michael Witten <mfwitten@gmail.com> parents: 1477 diff changeset	245 #define ENABLE_CONNECT_UNIX ((DROPBEAR_CLI_AGENTFWD) \|\| (DROPBEAR_USE_PRNGD))
547 cf376c696dfc Make it compile, update for changes in channel structure. Matt Johnston <matt@ucc.asn.au> parents: 521 diff changeset	246
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	247 /* if we're using authorized_keys or known_hosts */
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	248 #define DROPBEAR_KEY_LINES ((DROPBEAR_CLIENT) \|\| (DROPBEAR_SVR_PUBKEY_AUTH))
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	249
605 53c21d4ec98a - Don't allow setting memLevel since that doesn't work properly Matt Johnston <matt@ucc.asn.au> parents: 598 diff changeset	250 /* Changing this is inadvisable, it appears to have problems
53c21d4ec98a - Don't allow setting memLevel since that doesn't work properly Matt Johnston <matt@ucc.asn.au> parents: 598 diff changeset	251 * with flushing compressed data */
53c21d4ec98a - Don't allow setting memLevel since that doesn't work properly Matt Johnston <matt@ucc.asn.au> parents: 598 diff changeset	252 #define DROPBEAR_ZLIB_MEM_LEVEL 8
53c21d4ec98a - Don't allow setting memLevel since that doesn't work properly Matt Johnston <matt@ucc.asn.au> parents: 598 diff changeset	253
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	254 #if (DROPBEAR_SVR_PASSWORD_AUTH) && (DROPBEAR_SVR_PAM_AUTH)
1615 cd23631dab5c fix error message to say localoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1554 diff changeset	255 #error "You can't turn on PASSWORD and PAM auth both at once. Fix it in localoptions.h"
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	256 #endif
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	257
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	258 /* PAM requires ./configure --enable-pam */
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	259 #if !defined(HAVE_LIBPAM) && DROPBEAR_SVR_PAM_AUTH
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	260 #error "DROPBEAR_SVR_PATM_AUTH requires PAM headers. Perhaps ./configure --enable-pam ?"
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	261 #endif
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	262
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	263 #if DROPBEAR_SVR_PASSWORD_AUTH && !HAVE_CRYPT
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	264 #error "DROPBEAR_SVR_PASSWORD_AUTH requires `crypt()'."
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	265 #endif
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	266
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	267 #if !(DROPBEAR_SVR_PASSWORD_AUTH \|\| DROPBEAR_SVR_PAM_AUTH \|\| DROPBEAR_SVR_PUBKEY_AUTH)
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	268 #error "At least one server authentication type must be enabled. DROPBEAR_SVR_PUBKEY_AUTH and DROPBEAR_SVR_PASSWORD_AUTH are recommended."
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	269 #endif
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	270
1654 cc0fc5131c5c Rename EPKA -> Plugin Matt Johnston <matt@ucc.asn.au> parents: 1653 diff changeset	271 #if (DROPBEAR_PLUGIN && !DROPBEAR_SVR_PUBKEY_AUTH)
cc0fc5131c5c Rename EPKA -> Plugin Matt Johnston <matt@ucc.asn.au> parents: 1653 diff changeset	272 #error "You must define DROPBEAR_SVR_PUBKEY_AUTH in order to use plugins"
1653 76189c9ffea2 External Public-Key Authentication API (#72) fabriziobertocci <fabriziobertocci@gmail.com> parents: 1650 diff changeset	273 #endif
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	274
1915 13cb8cc1b0e4 Remove twofish and remnants of blowfish Matt Johnston <matt@ucc.asn.au> parents: 1862 diff changeset	275 #if !(DROPBEAR_AES128 \|\| DROPBEAR_3DES \|\| DROPBEAR_AES256 \|\| DROPBEAR_CHACHA20POLY1305)
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	276 #error "At least one encryption algorithm must be enabled. AES128 is recommended."
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	277 #endif
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	278
1659 d32bcb5c557d Add Ed25519 support (#91) Vladislav Grishenko <themiron@users.noreply.github.com> parents: 1654 diff changeset	279 #if !(DROPBEAR_RSA \|\| DROPBEAR_DSS \|\| DROPBEAR_ECDSA \|\| DROPBEAR_ED25519)
1514 6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	280 #error "At least one hostkey or public-key algorithm must be enabled; RSA is recommended."
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	281 #endif
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	282
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	283 /* Source for randomness. This must be able to provide hundreds of bytes per SSH
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	284 * connection without blocking. */
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	285 #ifndef DROPBEAR_URANDOM_DEV
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	286 #define DROPBEAR_URANDOM_DEV "/dev/urandom"
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	287 #endif
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	288
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	289 /* client keyboard interactive authentication is often used for password auth.
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	290 rfc4256 */
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	291 #define DROPBEAR_CLI_INTERACT_AUTH (DROPBEAR_CLI_PASSWORD_AUTH)
6c16a05023aa rename some options and move some to sysoptions.h Matt Johnston <matt@ucc.asn.au> parents: 1499 diff changeset	292
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	293 /* We use dropbear_client and dropbear_server as shortcuts to avoid redundant
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	294 * code, if we're just compiling as client or server */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	295 #if (DROPBEAR_SERVER) && (DROPBEAR_CLIENT)
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	296
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	297 #define IS_DROPBEAR_SERVER (ses.isserver == 1)
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	298 #define IS_DROPBEAR_CLIENT (ses.isserver == 0)
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	299
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	300 #elif DROPBEAR_SERVER
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	301
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	302 #define IS_DROPBEAR_SERVER 1
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	303 #define IS_DROPBEAR_CLIENT 0
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	304
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	305 #elif DROPBEAR_CLIENT
499 f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	306
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	307 #define IS_DROPBEAR_SERVER 0
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	308 #define IS_DROPBEAR_CLIENT 1
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	309
f3ca5ebc319a Split options.h out into sysoptions.h for options that aren't usually Matt Johnston <matt@ucc.asn.au> parents: diff changeset	310 #else
521 cc2dff9bd671 - Allow building with neither server nor client specified Matt Johnston <matt@ucc.asn.au> parents: 516 diff changeset	311 /* Just building key utils? */
cc2dff9bd671 - Allow building with neither server nor client specified Matt Johnston <matt@ucc.asn.au> parents: 516 diff changeset	312 #define IS_DROPBEAR_SERVER 0
cc2dff9bd671 - Allow building with neither server nor client specified Matt Johnston <matt@ucc.asn.au> parents: 516 diff changeset	313 #define IS_DROPBEAR_CLIENT 0
cc2dff9bd671 - Allow building with neither server nor client specified Matt Johnston <matt@ucc.asn.au> parents: 516 diff changeset	314
667 fc7ae88e63b3 Rename HAVE_FORK to USE_VFORK Matt Johnston <matt@ucc.asn.au> parents: 661 diff changeset	315 #endif /* neither DROPBEAR_SERVER nor DROPBEAR_CLIENT */
fc7ae88e63b3 Rename HAVE_FORK to USE_VFORK Matt Johnston <matt@ucc.asn.au> parents: 661 diff changeset	316
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	317 #ifdef HAVE_FORK
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	318 #define DROPBEAR_VFORK 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	319 #else
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	320 #define DROPBEAR_VFORK 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	321 #endif
667 fc7ae88e63b3 Rename HAVE_FORK to USE_VFORK Matt Johnston <matt@ucc.asn.au> parents: 661 diff changeset	322
1440 8b74d5f876a7 sysoptions.h: Add ability to override DROPBEAR_LISTEN_BACKLOG Ben Gardner <bgardner@wabtec.com> parents: 1342 diff changeset	323 #ifndef DROPBEAR_LISTEN_BACKLOG
936 d93a6bcf616f Improve handling lots of concurrent forwarded connections. Increase Matt Johnston <matt@ucc.asn.au> parents: 902 diff changeset	324 #if MAX_UNAUTH_CLIENTS > MAX_CHANNELS
d93a6bcf616f Improve handling lots of concurrent forwarded connections. Increase Matt Johnston <matt@ucc.asn.au> parents: 902 diff changeset	325 #define DROPBEAR_LISTEN_BACKLOG MAX_UNAUTH_CLIENTS
d93a6bcf616f Improve handling lots of concurrent forwarded connections. Increase Matt Johnston <matt@ucc.asn.au> parents: 902 diff changeset	326 #else
d93a6bcf616f Improve handling lots of concurrent forwarded connections. Increase Matt Johnston <matt@ucc.asn.au> parents: 902 diff changeset	327 #define DROPBEAR_LISTEN_BACKLOG MAX_CHANNELS
d93a6bcf616f Improve handling lots of concurrent forwarded connections. Increase Matt Johnston <matt@ucc.asn.au> parents: 902 diff changeset	328 #endif
1440 8b74d5f876a7 sysoptions.h: Add ability to override DROPBEAR_LISTEN_BACKLOG Ben Gardner <bgardner@wabtec.com> parents: 1342 diff changeset	329 #endif
936 d93a6bcf616f Improve handling lots of concurrent forwarded connections. Increase Matt Johnston <matt@ucc.asn.au> parents: 902 diff changeset	330
1040 2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 1009 diff changeset	331 /* free memory before exiting */
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	332 #define DROPBEAR_CLEANUP 1
1040 2b4fd440399d Free memory before exiting. Based on patch from Thorsten Horstmann. Matt Johnston <matt@ucc.asn.au> parents: 1009 diff changeset	333
970 0bb16232e7c4 Make keepalive handling more robust, this should now match what OpenSSH does Matt Johnston <matt@ucc.asn.au> parents: 965 diff changeset	334 /* Use this string since some implementations might special-case it */
0bb16232e7c4 Make keepalive handling more robust, this should now match what OpenSSH does Matt Johnston <matt@ucc.asn.au> parents: 965 diff changeset	335 #define DROPBEAR_KEEPALIVE_STRING "[email protected]"
0bb16232e7c4 Make keepalive handling more robust, this should now match what OpenSSH does Matt Johnston <matt@ucc.asn.au> parents: 965 diff changeset	336
1084 2265d7ebfdeb separate client/server fastopen options Matt Johnston <matt@ucc.asn.au> parents: 1049 diff changeset	337 /* Linux will attempt TCP fast open, falling back if not supported by the kernel.
2265d7ebfdeb separate client/server fastopen options Matt Johnston <matt@ucc.asn.au> parents: 1049 diff changeset	338 * Currently server is enabled but client is disabled by default until there
2265d7ebfdeb separate client/server fastopen options Matt Johnston <matt@ucc.asn.au> parents: 1049 diff changeset	339 * is further compatibility testing */
1033 ca71904cf3ee Fixes for backwards compatibility Matt Johnston <matt@ucc.asn.au> parents: 1009 diff changeset	340 #ifdef __linux__
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	341 #define DROPBEAR_SERVER_TCP_FAST_OPEN 1
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	342 #define DROPBEAR_CLIENT_TCP_FAST_OPEN 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	343 #else
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	344 #define DROPBEAR_SERVER_TCP_FAST_OPEN 0
750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1294 diff changeset	345 #define DROPBEAR_CLIENT_TCP_FAST_OPEN 0
1033 ca71904cf3ee Fixes for backwards compatibility Matt Johnston <matt@ucc.asn.au> parents: 1009 diff changeset	346 #endif
ca71904cf3ee Fixes for backwards compatibility Matt Johnston <matt@ucc.asn.au> parents: 1009 diff changeset	347
1569 c42e8ff42bd1 Only use malloc wrapper if fuzzing Matt Johnston <matt@ucc.asn.au> parents: 1554 diff changeset	348 #define DROPBEAR_TRACKING_MALLOC (DROPBEAR_FUZZ)
c42e8ff42bd1 Only use malloc wrapper if fuzzing Matt Johnston <matt@ucc.asn.au> parents: 1554 diff changeset	349
1596 60fceff95858 workaround memory sanitizer FD_ZERO false positives Matt Johnston <matt@ucc.asn.au> parents: 1569 diff changeset	350 /* Used to work around Memory Sanitizer false positives */
60fceff95858 workaround memory sanitizer FD_ZERO false positives Matt Johnston <matt@ucc.asn.au> parents: 1569 diff changeset	351 #if defined(__has_feature)
60fceff95858 workaround memory sanitizer FD_ZERO false positives Matt Johnston <matt@ucc.asn.au> parents: 1569 diff changeset	352 # if __has_feature(memory_sanitizer)
60fceff95858 workaround memory sanitizer FD_ZERO false positives Matt Johnston <matt@ucc.asn.au> parents: 1569 diff changeset	353 # define DROPBEAR_MSAN 1
60fceff95858 workaround memory sanitizer FD_ZERO false positives Matt Johnston <matt@ucc.asn.au> parents: 1569 diff changeset	354 # endif
60fceff95858 workaround memory sanitizer FD_ZERO false positives Matt Johnston <matt@ucc.asn.au> parents: 1569 diff changeset	355 #endif
60fceff95858 workaround memory sanitizer FD_ZERO false positives Matt Johnston <matt@ucc.asn.au> parents: 1569 diff changeset	356 #ifndef DROPBEAR_MSAN
60fceff95858 workaround memory sanitizer FD_ZERO false positives Matt Johnston <matt@ucc.asn.au> parents: 1569 diff changeset	357 #define DROPBEAR_MSAN 0
60fceff95858 workaround memory sanitizer FD_ZERO false positives Matt Johnston <matt@ucc.asn.au> parents: 1569 diff changeset	358 #endif
60fceff95858 workaround memory sanitizer FD_ZERO false positives Matt Johnston <matt@ucc.asn.au> parents: 1569 diff changeset	359
60fceff95858 workaround memory sanitizer FD_ZERO false positives Matt Johnston <matt@ucc.asn.au> parents: 1569 diff changeset	360
667 fc7ae88e63b3 Rename HAVE_FORK to USE_VFORK Matt Johnston <matt@ucc.asn.au> parents: 661 diff changeset	361 /* no include guard for this file */

Mercurial > dropbear

annotate sysoptions.h @ 1916:3f4cdf839a1a