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|
#!/bin/sh
#
# $FreeBSD$
#
# PROVIDE: sshd
# REQUIRE: LOGIN cleanvar
# KEYWORD: shutdown
. /etc/rc.subr
name="sshd"
rcvar="sshd_enable"
command="/usr/sbin/${name}"
keygen_cmd="sshd_keygen"
start_precmd="sshd_precmd"
pidfile="/var/run/${name}.pid"
extra_commands="keygen reload"
timeout=300
user_reseed()
{
(
seeded=`sysctl -n kern.random.sys.seeded 2>/dev/null`
if [ "x${seeded}" != "x" ] && [ ${seeded} -eq 0 ] ; then
warn "Setting entropy source to blocking mode."
echo "===================================================="
echo "Type a full screenful of random junk to unblock"
echo "it and remember to finish with <enter>. This will"
echo "timeout in ${timeout} seconds, but waiting for"
echo "the timeout without typing junk may make the"
echo "entropy source deliver predictable output."
echo ""
echo "Just hit <enter> for fast+insecure startup."
echo "===================================================="
sysctl kern.random.sys.seeded=0 2>/dev/null
read -t ${timeout} junk
echo "${junk}" `sysctl -a` `date` > /dev/random
fi
)
}
sshd_keygen()
{
(
umask 022
# Can't do anything if ssh is not installed
[ -x /usr/bin/ssh-keygen ] || {
warn "/usr/bin/ssh-keygen does not exist."
return 1
}
if [ -f /etc/ssh/ssh_host_key ]; then
echo "You already have an RSA host key" \
"in /etc/ssh/ssh_host_key"
echo "Skipping protocol version 1 RSA Key Generation"
else
/usr/bin/ssh-keygen -t rsa1 -b 1024 \
-f /etc/ssh/ssh_host_key -N ''
fi
if [ -f /etc/ssh/ssh_host_dsa_key ]; then
echo "You already have a DSA host key" \
"in /etc/ssh/ssh_host_dsa_key"
echo "Skipping protocol version 2 DSA Key Generation"
else
/usr/bin/ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key -N ''
fi
if [ -f /etc/ssh/ssh_host_rsa_key ]; then
echo "You already have an RSA host key" \
"in /etc/ssh/ssh_host_rsa_key"
echo "Skipping protocol version 2 RSA Key Generation"
else
/usr/bin/ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key -N ''
fi
if [ -f /etc/ssh/ssh_host_ecdsa_key ]; then
echo "You already have an ECDSA host key" \
"in /etc/ssh/ssh_host_ecdsa_key"
echo "Skipping protocol version 2 ECDSA Key Generation"
else
/usr/bin/ssh-keygen -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key -N ''
fi
)
}
sshd_precmd()
{
if [ ! -f /etc/ssh/ssh_host_key -o \
! -f /etc/ssh/ssh_host_dsa_key -o \
! -f /etc/ssh/ssh_host_ecdsa_key -o \
! -f /etc/ssh/ssh_host_rsa_key ]; then
user_reseed
run_rc_command keygen
fi
}
load_rc_config $name
run_rc_command "$1"
|
