1296633Sdes# $OpenBSD: dhgex.sh,v 1.3 2015/10/23 02:22:01 dtucker Exp $ 2263635Sdes# Placed in the Public Domain. 3263635Sdes 4263635Sdestid="dhgex" 5263635Sdes 6263635SdesLOG=${TEST_SSH_LOGFILE} 7263635Sdesrm -f ${LOG} 8294328Sdescp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak 9263635Sdes 10263635Sdeskexs=`${SSH} -Q kex | grep diffie-hellman-group-exchange` 11263635Sdes 12263635Sdesssh_test_dhgex() 13263635Sdes{ 14263635Sdes bits="$1"; shift 15263635Sdes cipher="$1"; shift 16263635Sdes kex="$1"; shift 17263635Sdes 18294328Sdes cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy 19294328Sdes echo "KexAlgorithms=$kex" >> $OBJ/sshd_proxy 20294328Sdes echo "Ciphers=$cipher" >> $OBJ/sshd_proxy 21263635Sdes rm -f ${LOG} 22263635Sdes opts="-oKexAlgorithms=$kex -oCiphers=$cipher" 23296633Sdes min=2048 24296633Sdes max=8192 25296633Sdes groupsz="$min<$bits<$max" 26263635Sdes verbose "$tid bits $bits $kex $cipher" 27263635Sdes ${SSH} ${opts} $@ -vvv -F ${OBJ}/ssh_proxy somehost true 28263635Sdes if [ $? -ne 0 ]; then 29263635Sdes fail "ssh failed ($@)" 30263635Sdes fi 31263635Sdes # check what we request 32263635Sdes grep "SSH2_MSG_KEX_DH_GEX_REQUEST($groupsz) sent" ${LOG} >/dev/null 33263635Sdes if [ $? != 0 ]; then 34263635Sdes got=`egrep "SSH2_MSG_KEX_DH_GEX_REQUEST(.*) sent" ${LOG}` 35263635Sdes fail "$tid unexpected GEX sizes, expected $groupsz, got $got" 36263635Sdes fi 37263635Sdes # check what we got (depends on contents of system moduli file) 38263635Sdes gotbits="`awk '/bits set:/{print $4}' ${LOG} | head -1 | cut -f2 -d/`" 39263635Sdes if [ "$gotbits" -lt "$bits" ]; then 40263635Sdes fatal "$tid expected $bits bit group, got $gotbits" 41263635Sdes fi 42263635Sdes} 43263635Sdes 44263635Sdescheck() 45263635Sdes{ 46263635Sdes bits="$1"; shift 47263635Sdes 48263635Sdes for c in $@; do 49263635Sdes for k in $kexs; do 50263635Sdes ssh_test_dhgex $bits $c $k 51263635Sdes done 52263635Sdes done 53263635Sdes} 54263635Sdes 55263635Sdes#check 2048 3des-cbc 56263635Sdescheck 3072 `${SSH} -Q cipher | grep 128` 57263635Sdescheck 3072 arcfour blowfish-cbc 58263635Sdescheck 7680 `${SSH} -Q cipher | grep 192` 59263635Sdescheck 8192 `${SSH} -Q cipher | grep 256` 60263635Sdescheck 8192 rijndael-cbc@lysator.liu.se chacha20-poly1305@openssh.com 61