mdw@git.distorted.org.uk Git - ssh-ca/blob - bin/sign

   1 #! /bin/sh
   2
   3 set -e
   4 . lib/func.sh
   5 orig_domain=$domain date=$(date +%Y-%m-%d)
   6
   7 ## The key types are adorned with bit lengths.  Work out the raw key type
   8 ## names.
   9 rawkeytypes=""
  10 for kt in $keytypes; do
  11   rawkeytypes="$rawkeytypes ${kt%:*}"
  12 done
  13
  14 ## Start a new output directory.
  15 rm -rf publish.new
  16 mkdir publish.new
  17 exec 3<etc/hosts 4>publish.new/hosts.list 5>publish.new/known_hosts
  18 echo ":certificate-authority" >&4
  19 for kt in $rawkeytypes; do
  20   cp ca/ca-$kt.pub publish.new/
  21   read pub <ca/ca-$kt.pub
  22   echo "@cert-authority $scope $pub" |
  23         tee publish.new/ca-$kt.entry >&4
  24   ssh-keygen -lv -fca/ca-$kt.pub | sed 's,^,| ,' >&4
  25 done
  26
  27 ## Sign the various host keys.
  28 last=%%%
  29 echo >&5 "### BEGIN $domain KEYS (generated $date)"
  30 while read line <&3; do
  31
  32   ## Ignore comments and empty lines.
  33   case "$line" in
  34     "#"* | "") continue ;;
  35     ##*[!       ]*) ;;
  36     ##*) continue ;;
  37   esac
  38
  39   ## Read the host line.
  40   set -- $line
  41   case "$1" in
  42     @domain) domain=$2 ;;
  43     @*) echo >&2 "$0: unknown directive \`$1'"; exit 1 ;;
  44   esac
  45   host=$1
  46   names=""
  47   nicks=""
  48
  49   ## If this is a different host, then start a new section of the list.
  50   case "$last" in
  51     "$host") ;;
  52     *) { echo; echo ":host $host"; } >&4 ;;
  53   esac
  54   last=$host
  55
  56   ## Build a list of names for the host.
  57   for n in "$@"; do
  58     case "$n" in
  59       .*) for h in $nicks; do names=${names:+$names,}$h$n.$domain; done ;;
  60       *.* | *:*) names=${names:+$names,}$n ;;
  61       *) nicks=${nicks:+$nicks }$n names=${names:+$names,}$n.$domain ;;
  62     esac
  63   done
  64
  65   ## Sign certificates.
  66   for kt in $rawkeytypes; do
  67     if [ ! -f host/$host-$kt.pub ]; then continue; fi
  68     cp host/$host-$kt.pub publish.new/
  69     ssh-keygen -q -tv00 -sca/ca-$kt \
  70       -h -I"$cacomment:$host.$domain" -n$names \
  71       -V$validity \
  72       publish.new/$host-$kt.pub
  73     mv publish.new/$host-$kt-cert.pub \
  74       publish.new/$host-$kt.cert
  75     for fd in 4 5; do
  76       { printf "%s " $names; cat host/$host-$kt.pub; } >&$fd
  77     done
  78     ssh-keygen -lv -fhost/$host-$kt.pub | sed 's,^,| ,' >&4
  79   done
  80 done
  81 echo >&5 "### END $domain KEYS"
  82 exec 3>&- 4>&- 5>&-
  83
  84 ## Sign the list.
  85 run_gpg --armor -o publish.new/hosts.asc \
  86   --clearsign publish.new/hosts.list
  87 rm publish.new/hosts.list
  88
  89 ## Include a copy of the public key.
  90 run_gpg --export --armor -o publish.new/ca-gnupg.asc
  91
  92 ## Done.
  93 if [ -d publish ]; then
  94   rm -rf publish.old
  95   mv publish publish.old
  96 fi
  97 mv publish.new publish
  98 rm -rf publish.old