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#!/bin/bash
set -e
# bash is required since /etc/frr/daemons.conf used a bash array in some
# previous versions.
# NOTE: this code exists specifically to make migrations from Quagga to
# FRR easier. FRR is able to load most Quagga configurations, but the
# config handling itself has changed with the move towards the "integrated"
# /etc/frr/frr.conf approach instead of separate per-daemon config files.
#
# That said, with this in place there's a good chance users can use a
# preexisting Quagga config with little hassle.
case "$1" in
install|upgrade)
(
test -f /etc/frr/daemons && . /etc/frr/daemons
test -f /etc/frr/daemons.conf && . /etc/frr/daemons.conf
test -f /etc/default/frr && . /etc/default/frr
if [ "$watchfrr_enable" = no -o \
"$watchfrr_enable" = "0" ]; then
cat >&2 <<EOF
ERROR: Pre-existing frr configuration file disables watchfrr.
This configuration is deprecated upstream and not supported by the Debian
FRR package. Refusing to $1 in order to not break running setups.
Please change your setup to use watchfrr and remove the "watchfrr_enable"
option from /etc/frr/daemons, /etc/frr/daemons.conf and/or /etc/default/frr.
EOF
exit 1
fi
)
vtysh=''
if test -f /etc/frr/vtysh.conf; then
if grep -q '^[[:space:]]*service[[:space:]]\+integrated-vtysh-config' /etc/frr/vtysh.conf; then
# existing vtysh.conf with integrated statement
# - do nothing (=> integrated config)
vtysh='i'
elif grep -q '^[[:space:]]*no[[:space:]]\+service[[:space:]]\+integrated-vtysh-config' /etc/frr/vtysh.conf; then
# explicit non-integrated
# => need to fix vtysh.conf & frr.conf in postinst
vtysh='ni'
if test -f /etc/frr/frr.conf; then
cat >&2 <<EOF
ERROR: Pre-existing /etc/frr/vtysh.conf specifies
"no service integrated-vtysh-config", but /etc/frr/frr.conf exists. This
will cause the frr package to malfunction. Please remove /etc/frr/frr.conf
or remove the "no service integrated-vtysh-config" statement from
/etc/frr/vtysh.conf.
EOF
exit 1
fi
else
# vtysh.conf exists but has no statement
:
fi
fi
if test -f /etc/frr/frr.conf; then
# vtysh.conf has no explicit statement but frr.conf exists
# => integrated config used
vtysh='i'
elif test -f /etc/frr/zebra.conf \
-o -f /etc/frr/bgpd.conf \
-o -f /etc/frr/ospfd.conf \
-o -f /etc/frr/ospf6d.conf \
-o -f /etc/frr/ripd.conf \
-o -f /etc/frr/ripngd.conf \
-o -f /etc/frr/isisd.conf \
-o -f /etc/frr/pimd.conf \
-o -f /etc/frr/ldpd.conf \
-o -f /etc/frr/nhrpd.conf \
-o -f /etc/frr/eigrpd.conf \
-o -f /etc/frr/babeld.conf \
-o -f /etc/frr/pbrd.conf \
-o -f /etc/frr/pathd.conf \
-o -f /etc/frr/bfdd.conf; then
# no explicit statement, but some split config file exists
# => need to fix vtysh.conf & frr.conf in postinst
test -n "$vtysh" || vtysh='ni'
else
# no config at all - use integrated
:
fi
if test "$vtysh" = "ni"; then
touch /etc/frr/.pkg.frr.nointegrated
fi
;;
abort-upgrade)
# shouldn't fail an upgrade abort
;;
esac
#DEBHELPER#
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