sshd revision 221420
1#!/bin/sh 2# 3# $FreeBSD: head/etc/rc.d/sshd 221420 2011-05-04 07:34:44Z des $ 4# 5 6# PROVIDE: sshd 7# REQUIRE: LOGIN cleanvar 8# KEYWORD: shutdown 9 10. /etc/rc.subr 11 12name="sshd" 13rcvar=`set_rcvar` 14command="/usr/sbin/${name}" 15keygen_cmd="sshd_keygen" 16start_precmd="sshd_precmd" 17pidfile="/var/run/${name}.pid" 18extra_commands="keygen reload" 19 20timeout=300 21 22user_reseed() 23{ 24 ( 25 seeded=`sysctl -n kern.random.sys.seeded 2>/dev/null` 26 if [ "x${seeded}" != "x" ] && [ ${seeded} -eq 0 ] ; then 27 warn "Setting entropy source to blocking mode." 28 echo "====================================================" 29 echo "Type a full screenful of random junk to unblock" 30 echo "it and remember to finish with <enter>. This will" 31 echo "timeout in ${timeout} seconds, but waiting for" 32 echo "the timeout without typing junk may make the" 33 echo "entropy source deliver predictable output." 34 echo "" 35 echo "Just hit <enter> for fast+insecure startup." 36 echo "====================================================" 37 sysctl kern.random.sys.seeded=0 2>/dev/null 38 read -t ${timeout} junk 39 echo "${junk}" `sysctl -a` `date` > /dev/random 40 fi 41 ) 42} 43 44sshd_keygen() 45{ 46 ( 47 umask 022 48 49 # Can't do anything if ssh is not installed 50 [ -x /usr/bin/ssh-keygen ] || { 51 warn "/usr/bin/ssh-keygen does not exist." 52 return 1 53 } 54 55 if [ -f /etc/ssh/ssh_host_key ]; then 56 echo "You already have an RSA host key" \ 57 "in /etc/ssh/ssh_host_key" 58 echo "Skipping protocol version 1 RSA Key Generation" 59 else 60 /usr/bin/ssh-keygen -t rsa1 -b 1024 \ 61 -f /etc/ssh/ssh_host_key -N '' 62 fi 63 64 if [ -f /etc/ssh/ssh_host_dsa_key ]; then 65 echo "You already have a DSA host key" \ 66 "in /etc/ssh/ssh_host_dsa_key" 67 echo "Skipping protocol version 2 DSA Key Generation" 68 else 69 /usr/bin/ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key -N '' 70 fi 71 72 if [ -f /etc/ssh/ssh_host_rsa_key ]; then 73 echo "You already have an RSA host key" \ 74 "in /etc/ssh/ssh_host_rsa_key" 75 echo "Skipping protocol version 2 RSA Key Generation" 76 else 77 /usr/bin/ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key -N '' 78 fi 79 80 if [ -f /etc/ssh/ssh_host_ecdsa_key ]; then 81 echo "You already have an ECDSA host key" \ 82 "in /etc/ssh/ssh_host_ecdsa_key" 83 echo "Skipping protocol version 2 ECDSA Key Generation" 84 else 85 /usr/bin/ssh-keygen -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key -N '' 86 fi 87 ) 88} 89 90sshd_precmd() 91{ 92 if [ ! -f /etc/ssh/ssh_host_key -o \ 93 ! -f /etc/ssh/ssh_host_dsa_key -o \ 94 ! -f /etc/ssh/ssh_host_ecdsa_key -o \ 95 ! -f /etc/ssh/ssh_host_rsa_key ]; then 96 user_reseed 97 run_rc_command keygen 98 fi 99} 100 101load_rc_config $name 102run_rc_command "$1" 103