openssh/regress/dropbear-kex.sh

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# $OpenBSD: dropbear-kex.sh,v 1.3 2024/06/19 10:10:46 dtucker Exp $
# Placed in the Public Domain.
tid="dropbear kex"
if test "x$REGRESS_INTEROP_DROPBEAR" != "xyes" ; then
skip "dropbear interop tests not enabled"
fi
cp $OBJ/sshd_proxy $OBJ/sshd_proxy.bak
kex="curve25519-sha256 curve25519-sha256@libssh.org"
if $SSH -Q kex | grep 'diffie-hellman-group14-sha1'; then
kex="$kex diffie-hellman-group14-sha256 diffie-hellman-group14-sha1"
fi
for k in $kex; do
verbose "$tid: kex $k"
rm -f ${COPY}
# dbclient doesn't have switch for kex, so force in server
(cat $OBJ/sshd_proxy.bak; echo "KexAlgorithms $k") >$OBJ/sshd_proxy
env HOME=$OBJ dbclient -y -i $OBJ/.dropbear/id_ed25519 2>$OBJ/dbclient.log \
-J "$OBJ/ssh_proxy.sh" somehost cat ${DATA} > ${COPY}
if [ $? -ne 0 ]; then
fail "ssh cat $DATA failed"
fi
cmp ${DATA} ${COPY} || fail "corrupted copy"
done
rm -f ${COPY}