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Copy pathgenerate-wireshark-cs
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generate-wireshark-cs
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#!/bin/bash
# Quick 'n' dirty generator for extending wireshark cipher suites
# Author: Peter Wu <lekensteyn@gmail.com>
set -u
warn() {
local cb= ce=
# add color only if printing to terminal
if [ -t 2 ]; then
cb='\e[1;91m' # bright red
ce='\e[m'
fi
printf "$cb%s$ce\n" "$*" >&2
}
# printf conversions with padding
_KEX=%-$(wc -L <<<KEX_RSA_PSK,)s
_ENC=%-$(wc -L <<<ENC_CAMELLIA256,)s
_IV_SZ=%2d
_KEYSZ=%3d
_EXP_KEYSZ=%3d
_DIG=%-$(wc -L <<<DIG_SHA384,)s
_MODE=%-$(wc -L <<<STREAM)s
p() {
local tmp kex keysize exp_keysize=0 dig diglen mode us_export blocksize hexid
[ $# -gt 0 ] || return
num=$(($2*0x100 + $3))
hexid=000$(echo "obase=16;$num" | bc)
hexid=0x${hexid: -4}
# ignore TLS_NULL_WITH_NULL_NULL and TLS_EMPTY_RENEGOTIATION_INFO_SCSV
case $hexid in
0x0000|0x00FF) return ;;
esac
tmp=${1%%_WITH_*}
tmp=${tmp%_EXPORT}
tmp=${tmp%_EXPORT1024}
tmp=${tmp#TLS_}
case $tmp in
PSK) kex=PSK ;;
RSA_PSK) kex=RSA_PSK ;;
RSA) kex=RSA ;;
DH_*|DHE_*) kex=DH ;;
ECDH_*|ECDHE_*) kex=ECDH ;;
*)
warn "Unknown kex in $hexid $1 (tmp=$tmp)"
return
;;
esac
# HACK HACK HACK
tmp=$1
# prevent seeing 56-bit export cipher as 64-bit DES
tmp=${tmp/EXPORT1024_WITH_DES_CBC_/EXPORT1024_WITH_DES_56_CBC_}
tmp=${tmp#*WITH_}
cipher=${tmp%%_*}
tmp=${tmp/_CBC_/_}
tmp=${tmp#${cipher}_} # now continue for keysize
keysize=${tmp%%_*}
[[ $keysize != [0-9]* ]] || cipher=$cipher$keysize
case $cipher in
RC[24]40) keysize=128; exp_keysize=40 ;;
RC[24]56) keysize=128; exp_keysize=56 ;;
*128|*256) ;;
SEED|IDEA) keysize=128 ;;
NULL) keysize=0 ;;
DES) keysize=64 ;;
DES40) keysize=64; exp_keysize=40 ;;
DES56) keysize=64; exp_keysize=56 ;;
3DES)
if [[ $keysize == EDE ]]; then
keysize=192
else
warn "Invalid keysize in $hexid $1 (cipher=$cipher, keysize=$keysize)"
#return
fi
;;
*)
warn "Invalid keysize in $hexid $1 (cipher=$cipher, keysize=$keysize)"
return
;;
esac
# assume same size for actual and algorithm key size
[ $exp_keysize -gt 0 ] || exp_keysize=$keysize
case $cipher in
AES128)
cipher=AES
;;
DES|3DES|RC4|RC2|IDEA|AES256|CAMELLIA128|CAMELLIA256|NULL|IDEA) ;;
DES40|DES56) cipher=DES ;;
SEED*) cipher=SEED ;;
RC240|RC256) cipher=RC2 ;;
RC440|RC4128|RC456) cipher=RC4 ;;
*)
warn "Unknown cipher $cipher in $hexid $1"
return
;;
esac
# For block sizes, see:
# SSL 3.0: http://tools.ietf.org/html/rfc6101#page-55
# TLS 1.0: http://tools.ietf.org/html/rfc2246#page-62
# TLS 1.1: http://tools.ietf.org/html/rfc4346#page-69
# TLS 1.2: http://tools.ietf.org/html/rfc5246#page-84
# GCM's IV size is always 4 regardless of underlying block cipher
case $1 in
*_GCM_*|*_CCM|*_CCM_8)
blocksize=4 ;;
*)
case $cipher in
AES|AES256|CAMELLIA128|CAMELLIA256|SEED)
blocksize=16 ;;
DES|3DES|IDEA)
blocksize=8 ;;
RC2)
blocksize=8 ;;
RC4|NULL)
# N/A for stream cipher RC4
blocksize=0 ;;
*)
warn "Unknown cipher $cipher in $hexid $1"
return
;;
esac
;;
esac
# diglen is unused here, but shown for clarity (when a new digest is
# added to packet-ssl-utils)
dig=${1##*_}
case $dig in
MD5) diglen=16 ;;
SHA) diglen=20 ;;
SHA256) diglen=32 ;;
SHA384) diglen=48 ;;
*)
# CCM (counter with CBC-MAC) includes MAC already.
if [[ $1 == *_CCM_8 ]] || [[ $1 == *_CCM ]]; then
dig=NA
else
warn "Unknown dig in $hexid $1 (dig=$dig)"
return
fi
;;
esac
us_export=0
if [[ $1 == *_EXPORT_* ]]; then
us_export=1
[ $exp_keysize -lt $keysize ] || \
warn "Export cipher, actual keysize may not be accurate: $hexid $1"
fi
case $1 in
*_GCM_*)
mode=GCM ;;
*_CCM)
mode=CCM ;;
*_CCM_8)
mode=CCM_8 ;;
*)
case $cipher in
AES|AES256|DES|3DES|CAMELLIA128|CAMELLIA256|SEED|IDEA|RC2)
mode=CBC ;;
RC4|NULL)
mode=STREAM ;;
*)
warn "Unknown mode in $hexid $1 (cipher=$cipher)"
return
;;
esac
;;
esac
printf \
" {$hexid,${_KEX}${_ENC}${_IV_SZ},${_KEYSZ},${_EXP_KEYSZ},${_DIG} MODE_${_MODE}}, /* $1 */\n" \
"KEX_$kex," \
"ENC_$cipher," \
$blocksize \
$keysize \
$exp_keysize \
"DIG_$dig," \
"$mode"
}
# expects a line like:
# CipherSuite TLS_RSA_WITH_CAMELLIA_128_CBC_SHA = { 0x00,0x41 };
sed 's/CipherSuite//;s/,/ /g' | grep -v '^[ \t]*$' | tr -d '={};' | while read name n1 n2 rem; do
# for <number> <name>, like suites.txt
if [ -z "$n2$rem" ] && [[ $name =~ ^[0-9]+|0[Xx][0-9a-fA-F]$ ]]; then
p "$n1" 0 "$name"
continue
fi
if [ -n "$rem" ]; then
warn "Error! Invalid line: $name $n1 $n2 $rem"
continue
fi
p "$name" "$n1" "$n2"
done
exit
# from http://tools.ietf.org/html/rfc5932, Proposed Cipher Suites
p TLS_RSA_WITH_CAMELLIA_128_CBC_SHA 0x00 0x41
p TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA 0x00 0x42
p TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA 0x00 0x43
p TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA 0x00 0x44
p TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA 0x00 0x45
p TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA 0x00 0x46
p
p TLS_RSA_WITH_CAMELLIA_256_CBC_SHA 0x00 0x84
p TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA 0x00 0x85
p TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA 0x00 0x86
p TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA 0x00 0x87
p TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA 0x00 0x88
p TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA 0x00 0x89
p
p
p TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 0x00 0xBA
p TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256 0x00 0xBB
p TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256 0x00 0xBC
p TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256 0x00 0xBD
p TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 0x00 0xBE
p TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256 0x00 0xBF
p
p TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 0x00 0xC0
p TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256 0x00 0xC1
p TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256 0x00 0xC2
p TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256 0x00 0xC3
p TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 0x00 0xC4
p TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256 0x00 0xC5