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  • Committer: Teddy Hogeborn
  • Date: 2015-07-12 01:25:14 UTC
  • Revision ID: teddy@recompile.se-20150712012514-x4wdgi1hz46h0apg
debian/mandos-client.README.Debian: Document the dhparams.pem file.

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debian/mandos-client.postinst
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#!/bin/sh -e
 
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#!/bin/sh
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# This script can be called in the following ways:
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#
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# After the package was installed:
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# If prerm fails during replacement due to conflict:
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#       <postinst> abort-remove in-favour <new-package> <version>
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set -e
 
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# Update the initial RAM file system image
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update_initramfs()
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{
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    fi
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}
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create_dh_params(){
 
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    if [ -r /etc/keys/mandos/dhparams.pem ]; then
 
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        return 0
 
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    fi
 
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    # Create a Diffe-Hellman parameters file
 
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    DHFILE="`mktemp -t mandos-client-dh-parameters.XXXXXXXXXX.pem`"
 
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    # First try certtool from GnuTLS
 
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    if ! certtool --generate-dh-params --sec-param high \
 
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         --outfile "$DHFILE"; then
 
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        # Otherwise try OpenSSL
 
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        if ! openssl genpkey -genparam -algorithm DH -out "$DHFILE" \
 
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             -pkeyopt dh_paramgen_prime_len:3072; then
 
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            # None of the commands succeded; give up
 
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            rm -- "$DHFILE"
 
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            return 1
 
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        fi
 
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    fi
 
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    sed --in-place --expression='0,/^-----BEGIN DH PARAMETERS-----$/d' \
 
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        "$DHFILE"
 
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    sed --in-place --expression='1i-----BEGIN DH PARAMETERS-----' \
 
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            "$DHFILE"
 
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    cp --archive "$DHFILE" /etc/keys/mandos/dhparams.pem
 
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    rm -- "$DHFILE"
 
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}
 
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case "$1" in
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    configure)
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        add_mandos_user "$@"
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        create_key "$@"
 
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        create_dh_params "$@" || :
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        update_initramfs "$@"
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        ;;
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    abort-upgrade|abort-deconfigure|abort-remove)