#	$OpenBSD: try-ciphers.sh,v 1.20 2013/05/17 10:16:26 dtucker Exp $
#	Placed in the Public Domain.

tid="try ciphers"

ciphers="aes128-cbc 3des-cbc blowfish-cbc cast128-cbc 
	arcfour128 arcfour256 arcfour 
	aes192-cbc aes256-cbc rijndael-cbc@lysator.liu.se
	aes128-ctr aes192-ctr aes256-ctr"
config_defined OPENSSL_HAVE_EVPGCM && \
	ciphers="$ciphers aes128-gcm@openssh.com aes256-gcm@openssh.com"
macs="hmac-sha1 hmac-md5 umac-64@openssh.com umac-128@openssh.com
	hmac-sha1-96 hmac-md5-96
	hmac-sha1-etm@openssh.com hmac-md5-etm@openssh.com
	umac-64-etm@openssh.com umac-128-etm@openssh.com
	hmac-sha1-96-etm@openssh.com hmac-md5-96-etm@openssh.com
	hmac-ripemd160-etm@openssh.com"
config_defined HAVE_EVP_SHA256 &&
    macs="$macs hmac-sha2-256 hmac-sha2-512
	hmac-sha2-256-etm@openssh.com hmac-sha2-512-etm@openssh.com"

for c in $ciphers; do
	n=0
	for m in $macs; do
		trace "proto 2 cipher $c mac $m"
		verbose "test $tid: proto 2 cipher $c mac $m"
		${SSH} -F $OBJ/ssh_proxy -2 -m $m -c $c somehost true
		if [ $? -ne 0 ]; then
			fail "ssh -2 failed with mac $m cipher $c"
		fi
		# No point trying all MACs for GCM since they are ignored.
		case $c in
		aes*-gcm@openssh.com)	test $n -gt 0 && break;;
		esac
		n=`expr $n + 1`
	done
done

ciphers="3des blowfish"
for c in $ciphers; do
	trace "proto 1 cipher $c"
	verbose "test $tid: proto 1 cipher $c"
	${SSH} -F $OBJ/ssh_proxy -1 -c $c somehost true
	if [ $? -ne 0 ]; then
		fail "ssh -1 failed with cipher $c"
	fi
done