sshd revision 174438
1#!/bin/sh 2# 3# $FreeBSD: head/etc/rc.d/sshd 174438 2007-12-08 07:20:23Z dougb $ 4# 5 6# PROVIDE: sshd 7# REQUIRE: LOGIN cleanvar 8 9. /etc/rc.subr 10 11name="sshd" 12rcvar=`set_rcvar` 13command="/usr/sbin/${name}" 14keygen_cmd="sshd_keygen" 15start_precmd="sshd_precmd" 16pidfile="/var/run/${name}.pid" 17extra_commands="keygen reload" 18 19timeout=300 20 21user_reseed() 22{ 23 ( 24 seeded=`sysctl -n kern.random.sys.seeded 2>/dev/null` 25 if [ "x${seeded}" != "x" ] && [ ${seeded} -eq 0 ] ; then 26 warn "Setting entropy source to blocking mode." 27 echo "====================================================" 28 echo "Type a full screenful of random junk to unblock" 29 echo "it and remember to finish with <enter>. This will" 30 echo "timeout in ${timeout} seconds, but waiting for" 31 echo "the timeout without typing junk may make the" 32 echo "entropy source deliver predictable output." 33 echo "" 34 echo "Just hit <enter> for fast+insecure startup." 35 echo "====================================================" 36 sysctl kern.random.sys.seeded=0 2>/dev/null 37 read -t ${timeout} junk 38 echo "${junk}" `sysctl -a` `date` > /dev/random 39 fi 40 ) 41} 42 43sshd_keygen() 44{ 45 ( 46 umask 022 47 48 # Can't do anything if ssh is not installed 49 [ -x /usr/bin/ssh-keygen ] || { 50 warn "/usr/bin/ssh-keygen does not exist." 51 return 1 52 } 53 54 if [ -f /etc/ssh/ssh_host_key ]; then 55 echo "You already have an RSA host key" \ 56 "in /etc/ssh/ssh_host_key" 57 echo "Skipping protocol version 1 RSA Key Generation" 58 else 59 /usr/bin/ssh-keygen -t rsa1 -b 1024 \ 60 -f /etc/ssh/ssh_host_key -N '' 61 fi 62 63 if [ -f /etc/ssh/ssh_host_dsa_key ]; then 64 echo "You already have a DSA host key" \ 65 "in /etc/ssh/ssh_host_dsa_key" 66 echo "Skipping protocol version 2 DSA Key Generation" 67 else 68 /usr/bin/ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key -N '' 69 fi 70 71 if [ -f /etc/ssh/ssh_host_rsa_key ]; then 72 echo "You already have a RSA host key" \ 73 "in /etc/ssh/ssh_host_rsa_key" 74 echo "Skipping protocol version 2 RSA Key Generation" 75 else 76 /usr/bin/ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key -N '' 77 fi 78 ) 79} 80 81sshd_precmd() 82{ 83 if [ ! -f /etc/ssh/ssh_host_key -o \ 84 ! -f /etc/ssh/ssh_host_dsa_key -o \ 85 ! -f /etc/ssh/ssh_host_rsa_key ]; then 86 user_reseed 87 run_rc_command keygen 88 fi 89} 90 91load_rc_config $name 92run_rc_command "$1" 93