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  • Committer: Teddy Hogeborn
  • Date: 2014-06-22 02:19:30 UTC
  • mto: (237.7.272 trunk)
  • mto: This revision was merged to the branch mainline in revision 317.
  • Revision ID: teddy@recompile.se-20140622021930-icl7h4cm97blhjml
mandos-keygen: Generate "checker" option to use SSH fingerprints.

To turn this off, use a new "--no-ssh" option to mandos-keygen.

* INSTALL (Mandos Server, Mandos Client): Document new suggested
                                          installation of SSH.
* Makefile (confdir/clients.conf): Use new "--no-ssh" option to
                                   "mandos-keygen".
* debian/control (mandos/Depends): Changed to "fping | ssh-client".
  (mandos-client/Recommends): New; set to "ssh".
* intro.xml (FREQUENTLY ASKED QUESTIONS): Rename and rewrite section
                                          called "Faking ping
                                          replies?" to address new
                                          default behavior.
* mandos-clients.conf.xml (OPTIONS/checker): Briefly discuss new
                                             behavior of
                                             mandos-keygen.
* mandos-keygen: Bug fix: Suppress failure output of "shred" to remove
                 "sec*", since no such files may exist.
 (password mode): Scan for SSH key fingerprints and output as new
                  "checker" and "ssh_fingerprint" options, unless new
                  "--no-ssh" option is given.
* mandos-keygen.xml (SYNOPSIS/--force): Bug fix: Document short form.
  (OPTIONS/--no-ssh): New.
  (SEE ALSO): Add reference "ssh-keyscan(1)".
* plugins.d/mandos-client.xml (SECURITY): Briefly mention the
                                          possibility of using SSH key
                                          fingerprints for checking.

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mandos-keygen
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# 
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# Mandos key generator - create a new OpenPGP key for a Mandos client
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# 
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# Copyright © 2008-2017 Teddy Hogeborn
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# Copyright © 2008-2017 Björn Påhlsson
 
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# Copyright © 2008-2014 Teddy Hogeborn
 
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# Copyright © 2008-2014 Björn Påhlsson
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# 
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# Contact the authors at <mandos@recompile.se>.
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# 
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VERSION="1.7.15"
 
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VERSION="1.6.5"
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KEYDIR="/etc/keys/mandos"
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KEYTYPE=RSA
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    --name "$0" -- "$@"`
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help(){
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basename="`basename "$0"`"
 
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basename="`basename $0`"
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cat <<EOF
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Usage: $basename [ -v | --version ]
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       $basename [ -h | --help ]
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    esac
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done
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if [ "$#" -gt 0 ]; then
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    echo "Unknown arguments: '$*'" >&2
 
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    echo "Unknown arguments: '$@'" >&2
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    exit 1
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fi
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        [Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
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    esac
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    if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ]; } \
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        && [ "$FORCE" -eq 0 ]; then
 
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    if [ \( -e "$SECKEYFILE" -o -e "$PUBKEYFILE" \) \
 
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        -a "$FORCE" -eq 0 ]; then
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        echo "Refusing to overwrite old key files; use --force" >&2
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        exit 1
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    fi
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        #Handle: <no-spaces>
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        #%pubring pubring.gpg
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        #%secring secring.gpg
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        %no-protection
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        %commit
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        EOF
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    esac
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    if [ $SSH -eq 1 ]; then
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        for ssh_keytype in ecdsa-sha2-nistp256 ed25519 rsa; do
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            set +e
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            ssh_fingerprint="`ssh-keyscan -t $ssh_keytype localhost 2>/dev/null`"
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            err=$?
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            set -e
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            if [ $err -ne 0 ]; then
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                ssh_fingerprint=""
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                continue
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            fi
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            if [ -n "$ssh_fingerprint" ]; then
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                ssh_fingerprint="${ssh_fingerprint#localhost }"
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                break
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            fi
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        done
 
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        set +e
 
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        ssh_fingerprint="`ssh-keyscan localhost 2>/dev/null`"
 
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        if [ $? -ne 0 ]; then
 
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            ssh_fingerprint=""
 
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        fi
 
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        set -e
 
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        ssh_fingerprint="${ssh_fingerprint#localhost }"
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    fi
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    # Import key into temporary key rings
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    # Get fingerprint of key
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    FINGERPRINT="`gpg --quiet --batch --no-tty --no-options \
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        --enable-dsa2 --homedir "$RINGDIR" --trust-model always \
 
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        --enable-dsa2 --homedir \"$RINGDIR\" --trust-model always \
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        --fingerprint --with-colons \
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        | sed --quiet \
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        --expression='/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
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            cat "$PASSFILE"
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        else
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            tty --quiet && stty -echo
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            echo -n "Enter passphrase: " >/dev/tty
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            read -r first
 
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            echo -n "Enter passphrase: " >&2
 
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            read first
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            tty --quiet && echo >&2
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            echo -n "Repeat passphrase: " >/dev/tty
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            read -r second
 
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            echo -n "Repeat passphrase: " >&2
 
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            read second
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            if tty --quiet; then
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                echo >&2
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                stty echo
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            }
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        }' < "$SECFILE"
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    if [ -n "$ssh_fingerprint" ]; then
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        echo 'checker = ssh-keyscan -t '"$ssh_keytype"' %%(host)s 2>/dev/null | grep --fixed-strings --line-regexp --quiet --regexp=%%(host)s" %(ssh_fingerprint)s"'
 
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        echo 'checker = ssh-keyscan %%(host)s 2>/dev/null | grep --fixed-strings --line-regexp --quiet --regexp="%%(host)s %(ssh_fingerprint)s"'
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        echo "ssh_fingerprint = ${ssh_fingerprint}"
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    fi
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fi