#!/bin/sh # # $FreeBSD$ # # PROVIDE: sshd # REQUIRE: LOGIN cleanvar # KEYWORD: shutdown . /etc/rc.subr name="sshd" rcvar=`set_rcvar` 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 a 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 ) } sshd_precmd() { if [ ! -f /etc/ssh/ssh_host_key -o \ ! -f /etc/ssh/ssh_host_dsa_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"