sshroot

   1 #!/bin/bash
   2 export KRB5CCNAME=/tmp/krb5cc_$(id -u).root
   3 export KRBTKFILE=/dev/null
   4
   5 # lifetime, in minutes
   6 lifetime=15
   7
   8 hostopt=""
   9 [ -z "$hostopt" ] && hostopt="${HOSTNAME}"
  10 [ -z "$hostopt" ] && hostopt=`uname -n 2>/dev/null || echo unknown`
  11 keys=~/.ssh/id_rsa_root
  12
  13 function with-keys
  14 {
  15     unset SSH_AUTH_SOCK SSH_AGENT_PID
  16     eval $(keychain --timeout $lifetime --eval --host "$hostopt-root" $keys)
  17     exec "$@"
  18 }
  19
  20 function with-agent
  21 {
  22     unset SSH_AUTH_SOCK SSH_AGENT_PID
  23     eval $(keychain --timeout $lifetime --eval --host "$hostopt-root")
  24     exec "$@"
  25 }
  26
  27 command="$1"
  28 shift
  29
  30 case "$command" in
  31     init)
  32         echo "Loading default keys (lifetime $lifetime)..."
  33         with-agent ssh-add -t ${lifetime}m "$@" $keys
  34         ;;
  35     add)
  36         echo "Loading keys (lifetime $lifetime):" "$@"
  37         with-agent ssh-add -t ${lifetime}m "$@"
  38         ;;
  39     list)
  40         with-agent ssh-add -l
  41         ;;
  42     destroy)
  43         with-agent ssh-add -D
  44         ;;
  45     shell)
  46         with-keys $SHELL
  47         ;;
  48     ssh)
  49         with-keys ssh -l root "$@"
  50         ;;
  51     *)
  52         if [ -z "$command" ]; then
  53             echo "Usage: $0 init" >&2
  54             echo "       $0 add" >&2
  55             echo "       $0 list" >&2
  56             echo "       $0 destroy" >&2
  57             echo "       $0 shell" >&2
  58             echo "       $0 ssh [args]" >&2
  59             echo "       $0 [cmd]" >&2
  60         else
  61             echo Executing: "$command" "$@"
  62             with-agent "$command" "$@"
  63         fi
  64         ;;
  65 esac