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#!/bin/sh
set -e
# most of this file makes sense to execute regardless of whether this is any
# of normal "configure" or error-handling "abort-upgrade", "abort-remove" or
# "abort-deconfigure"
addgroup --system frrvty
addgroup --system frr
adduser \
--system \
--ingroup frr \
--home /nonexistent \
--gecos "Frr routing suite" \
--no-create-home \
frr
usermod -a -G frrvty frr
mkdir -p /var/log/frr
mkdir -p /etc/frr
# only change ownership of files when they were previously owned by root or
# quagga; this is to ensure we don't trample over some custom user setup.
#
# if we are on a freshly installed package (or we added new configfiles),
# the files should be owned by root by default so we should end up with "frr"
# owned configfiles.
quaggauid=`id -u quagga 2>/dev/null || echo 0`
quaggagid=`id -g quagga 2>/dev/null || echo 0`
find \
/etc/frr \
/var/log/frr \
\( -uid 0 -o -uid $quaggauid \) -a \
\( -gid 0 -o -gid $quaggauid \) | \
while read filename; do
# don't chown anything that has ACLs (but don't fail if we don't
# have getfacl)
if { getfacl -c "$filename" 2>/dev/null || true; } \
| egrep -q -v '^((user|group|other)::|$)'; then
:
else
chown frr: "$filename"
chmod o-rwx "$filename"
fi
done
# fix misconfigured vtysh.conf & frr.conf ownership caused by config save
# mishandling in earlier FRR (and Quagga) versions
find /etc/frr -maxdepth 1 \( -name vtysh.conf -o -name frr.conf \) \
-group frrvty -exec chgrp frr {} \;
# more Quagga -> FRR upgrade smoothing. Not technically needed, but let's
# at least do the straightforward pieces.
check_old_config() {
oldcfg="$1"
[ -r "$oldcfg" ] || return 0
[ -s "$oldcfg" ] || return 0
grep -v '^[[:blank:]]*\(#\|$\)' "$oldcfg" > /dev/null || return 0
cat >&2 <<EOF
Note: deprecated $oldcfg is present. This file is still read by
the FRR service but its contents should be migrated to /etc/frr/daemons.
EOF
}
rmsum() {
fname="$1"
test -f "$1" || return 0
fhash="`sha1sum \"$fname\"`"
fhash="${fhash%% *}"
if test "$fhash" = "$2"; then
rm "$fname"
fi
}
case "$1" in
configure)
check_old_config /etc/frr/daemons.conf
check_old_config /etc/default/frr
if test -f /etc/frr/.pkg.frr.nointegrated; then
# remove integrated config setup
# (if checksums match, the files match freshly installed
# defaults, but the user has split config in place)
rmsum /etc/frr/vtysh.conf 5e7e3a488c51751e1ff98f27c9ad6085e1ad9cbb
rmsum /etc/frr/frr.conf dac6f2af4fca9919ba40eb338885a5d1773195c8
rm /etc/frr/.pkg.frr.nointegrated
fi
;;
esac
#DEBHELPER#
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