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  • Committer: Teddy Hogeborn
  • Date: 2019-02-10 03:50:20 UTC
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 370.
  • Revision ID: teddy@recompile.se-20190210035020-nttr1tybgwwixueu
http://bugs.debian.org/879538
http://bugs.debian.org/916673
Show debconf note about new TLS key IDs

If mandos-client did not see TLS keys and had to create them, or if
mandos sees GnuTLS version 3.6.6 or later, show an important notice on
package installation about the importance of adding the new key_id
options to clients.conf on the Mandos server.

* debian/control (Package: mandos, Package: mandos-client): Depend on
                                                            debconf.
* debian/mandos-client.lintian-overrides: Override warnings.
* debian/mandos-client.postinst (create_keys): Show notice if new TLS
                                               key files were created.
* debian/mandos-client.templates: New.
* debian/mandos.lintian-overrides: Override warnings.
* debian/mandos.postinst (configure): If GnuTLS 3.6.6 or later is
                                      detected, show an important
                                      notice (once) about the new
                                      key_id option required in
                                      clients.conf.
* debian/mandos.templates: New.

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Lines of Context:
debian/mandos-client.postinst
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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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. /usr/share/debconf/confmodule
 
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set -e
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# Update the initial RAM file system image
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    fi
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}
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# Create client key pair
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create_key(){
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    if [ -r /etc/keys/mandos/pubkey.txt \
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        -a -r /etc/keys/mandos/seckey.txt ]; then
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        return 0
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    fi
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    mandos-keygen
 
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# Create client key pairs
 
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create_keys(){
 
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    # If the OpenPGP key files do not exist, generate all keys using
 
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    # mandos-keygen
 
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    if ! [ -r /etc/keys/mandos/pubkey.txt \
 
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              -a -r /etc/keys/mandos/seckey.txt ]; then
 
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        mandos-keygen
 
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        gpg-connect-agent KILLAGENT /bye || :
 
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        return 0
 
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    fi
 
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    # If the TLS keys already exists, do nothing
 
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    if [ -r /etc/keys/mandos/tls-privkey.pem \
 
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            -a -r /etc/keys/mandos/tls-pubkey.pem ]; then
 
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        return 0
 
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    fi
 
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    # If this is an upgrade from an old installation, the TLS keys
 
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    # will not exist; create them.
 
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    # First try certtool from GnuTLS
 
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    if ! certtool --generate-privkey --password='' \
 
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         --outfile /etc/keys/mandos/tls-privkey.pem \
 
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         --sec-param ultra --key-type=ed25519 --pkcs8 --no-text \
 
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         2>/dev/null; then
 
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        # Otherwise try OpenSSL
 
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        if ! openssl genpkey -algorithm X25519 \
 
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             -out /etc/keys/mandos/tls-privkey.pem; then
 
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            rm --force /etc/keys/mandos/tls-privkey.pem
 
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            # None of the commands succeded; give up
 
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            return 1
 
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        fi
 
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    fi
 
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    local umask=$(umask)
 
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    umask 077
 
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    # First try certtool from GnuTLS
 
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    if ! certtool --password='' \
 
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         --load-privkey=/etc/keys/mandos/tls-privkey.pem \
 
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         --outfile=/etc/keys/mandos/tls-pubkey.pem --pubkey-info \
 
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         --no-text 2>/dev/null; then
 
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        # Otherwise try OpenSSL
 
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        if ! openssl pkey -in /etc/keys/mandos/tls-privkey.pem \
 
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             -out /etc/keys/mandos/tls-pubkey.pem -pubout; then
 
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            rm --force /etc/keys/mandos/tls-pubkey.pem
 
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            # None of the commands succeded; give up
 
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            umask $umask
 
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            return 1
 
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        fi
 
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    fi
 
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    umask $umask
 
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    key_id=$(mandos-keygen --passfile=/dev/null \
 
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                 | grep --regexp="^key_id[ =]")
 
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    db_version 2.0
 
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    db_fset mandos-client/key_id seen false
 
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    db_reset mandos-client/key_id
 
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    db_subst mandos-client/key_id key_id $key_id
 
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    db_input critical mandos-client/key_id || true
 
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    db_go
 
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    db_stop
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}
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create_dh_params(){
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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_keys "$@"
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        create_dh_params "$@" || :
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        update_initramfs "$@"
 
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        if dpkg --compare-versions "$2" lt-nl "1.7.10-1"; then
 
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            PLUGINHELPERDIR=/usr/lib/$(dpkg-architecture -qDEB_HOST_MULTIARCH 2>/dev/null)/mandos/plugin-helpers
 
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            if ! dpkg-statoverride --list "$PLUGINHELPERDIR" \
 
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                 >/dev/null 2>&1; then
 
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                chmod u=rwx,go= -- "$PLUGINHELPERDIR"
 
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            fi
 
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            if ! dpkg-statoverride --list /etc/mandos/plugin-helpers \
 
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                 >/dev/null 2>&1; then
 
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                chmod u=rwx,go= -- /etc/mandos/plugin-helpers
 
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            fi
 
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        fi
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        ;;
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    abort-upgrade|abort-deconfigure|abort-remove)
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        ;;