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hmac filtering; opensuse sshd support #8

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hmac filtering; opensuse sshd support #8

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28 changes: 24 additions & 4 deletions modules/ssh
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Original file line number Diff line number Diff line change
Expand Up @@ -52,18 +52,28 @@ sshd_config
# -e 's/#\?X11Forwarding *\(yes\|no\).*/X11Forwarding no/' \
# sshd_config

# below filtering of hmac is based on https://unix.stackexchange.com/questions/338116/turning-separate-lines-into-a-comma-separated-list-with-quoted-entries/338124#338124

# should be this but curve25519 is not supported everywhere
kexup='[email protected]'

kex='diffie-hellman-group-exchange-sha256'

ciphers='aes256-ctr,aes192-ctr,aes128-ctr'
ciphersup='[email protected]'
macs='hmac-sha2-512,hmac-sha2-256,hmac-ripemd160'
macsup='[email protected],[email protected],[email protected],[email protected]'
# macs='hmac-sha2-512,hmac-sha2-256,hmac-ripemd160'
macs=$(ssh -Q mac | grep -w 'hmac-sha2-512\|hmac-sha2-256,hmac-ripemd160' | paste -sd, -)
# macsup='[email protected],[email protected],[email protected],[email protected]'
macsup=$(ssh -Q mac | grep -w '[email protected]\|[email protected]\|[email protected]\|[email protected]' | paste -sd, -)
macsend='[email protected]'


echo "kexup=$kexup"
echo "kex=$kex"
echo "ciphers=$ciphers"
echo "ciphersup=$ciphersup"
echo "macs=$macs"
echo "macsup=$macsup"
echo "macsend=$macsend"


if [[ "$v" < "5.9" ]]
Expand Down Expand Up @@ -116,7 +126,17 @@ then
cp sshd_config sshd_config.$$.new
mv sshd_config.$$ sshd_config
else
/etc/init.d/ssh reload
if [ -x /etc/init.d/ssh ]; then
/etc/init.d/ssh reload
else
if [ -x /usr/sbin/rcsshd ]; then
/usr/sbin/rcsshd restart
else
echo "cannot find a way to reload the sshd configuration; please reload it manually"
fi
fi

echo
echo "SSH reloaded. Please TEST your SSHD by making a new connection BEFORE disconnecting this session!" >&2
fi

Expand Down