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  • Committer: Teddy Hogeborn
  • Date: 2016-02-28 10:59:18 UTC
  • Revision ID: teddy@recompile.se-20160228105918-tb8pt2p5j0tkcls3
Handle GnuTLS errors and partial sends in gnutls "module".

* mandos (GnuTLS.E_INTERRUPTED, GnuTLS.E_AGAIN): New.
  (GnuTLS.Error): Set error code as "code" attribute.
  (GnuTLS.ClientSession.send): Handle partial sends with a loop.
  (GnuTLS._retry_on_error): New function.
  (GnuTLS.record_send, GnuTLS.handshake, GnuTLS.bye): Set "errcheck"
                                                      attribute to
                                                    "_retry_on_error".
  (ClientHandler.handle): Remove loop for handling partial sends;
                          GnuTLS.ClientSession.send() will do that.

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Lines of Context:
debian/mandos.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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case "$1" in
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                *:Mandos\ password\ system,,,:/nonexistent:/bin/false)
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                    usermod --login _mandos mandos
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                    groupmod --new-name _mandos mandos
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                    # Reload D-Bus daemon to be aware of the _mandos
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                    # user & group
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                    if [ -x /etc/init.d/dbus ]; then
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                        invoke-rc.d dbus force-reload || :
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                    fi
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                    ;;
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            esac
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        fi
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                --home /nonexistent --no-create-home --group \
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                --disabled-password --gecos "Mandos password system" \
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                _mandos
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            # Reload D-Bus daemon to be aware of the _mandos user &
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            # group
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            if [ -x /etc/init.d/dbus ]; then
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                invoke-rc.d dbus force-reload || :
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            fi
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        elif dpkg --compare-versions "$2" eq 1.7.4-1 \
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                || dpkg --compare-versions "$2" eq "1.7.4-1~bpo8+1"
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        then
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            start=no
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            if ! [ -f /var/lib/mandos/clients.pickle ]; then
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                invoke-rc.d mandos stop
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                start=yes
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            fi
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            chown _mandos:_mandos /var/lib/mandos/clients.pickle \
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                  2>/dev/null || :
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            if [ "$start" = yes ]; then
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                invoke-rc.d mandos start
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            fi
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        fi
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        if ! dpkg-statoverride --list "/var/lib/mandos" >/dev/null \
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             2>&1; then
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            chown _mandos:_mandos /var/lib/mandos
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            chmod u=rwx,go= /var/lib/mandos
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        fi
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        if dpkg --compare-versions "$2" eq "1.8.0-1" \
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                || dpkg --compare-versions "$2" eq "1.8.0-1~bpo9+1"; then
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            if grep --quiet --regexp='^[[:space:]]*key_id[[:space:]]*=[[:space:]]*[Ee]3[Bb]0[Cc]44298[Ff][Cc]1[Cc]149[Aa][Ff][Bb][Ff]4[Cc]8996[Ff][Bb]92427[Aa][Ee]41[Ee]4649[Bb]934[Cc][Aa]495991[Bb]7852[Bb]855[[:space:]]*$' /etc/mandos/clients.conf; then
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                sed --in-place \
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                    --expression='/^[[:space:]]*key_id[[:space:]]*=[[:space:]]*[Ee]3[Bb]0[Cc]44298[Ff][Cc]1[Cc]149[Aa][Ff][Bb][Ff]4[Cc]8996[Ff][Bb]92427[Aa][Ee]41[Ee]4649[Bb]934[Cc][Aa]495991[Bb]7852[Bb]855[[:space:]]*$/d' \
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                    /etc/mandos/clients.conf
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                invoke-rc.d mandos restart
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                db_version 2.0
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                db_fset mandos/removed_bad_key_ids seen false
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                db_reset mandos/removed_bad_key_ids
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                db_input critical mandos/removed_bad_key_ids || true
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                db_go
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                db_stop
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            fi
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        fi
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        gnutls_version=$(dpkg-query --showformat='${Version}' \
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                                    --show libgnutls30 \
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                                    2>/dev/null || :)
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        if [ -n "$gnutls_version" ] \
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               && dpkg --compare-versions $gnutls_version ge 3.6.6; then
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            db_version 2.0
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            db_input critical mandos/key_id || true
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            db_go
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            db_stop
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        fi
 
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        fi
 
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        chown _mandos:_mandos /var/lib/mandos
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        ;;
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    abort-upgrade|abort-deconfigure|abort-remove)