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Add service and helper script for static network configuration

After interface renaming is done, perform the following actions:
 - Configure each interface for which we have a configuration file
 - Configuration file contains lines that we pass directly to iproute2
 - Configure static routing in a similar fashion
 - Set the configured interfaces up

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
This commit is contained in:
David Oberhollenzer 2018-04-27 22:38:01 +02:00
parent 0ded476534
commit a22a212d3a
7 changed files with 102 additions and 1 deletions

2
.gitignore vendored
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@ -27,8 +27,10 @@ services/devfs
services/procfs
services/sysfs
services/ifrename
services/ifcfg
scripts/devfs.sh
scripts/ifrename.sh
scripts/ifcfg.sh
etc/initd.env

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@ -38,3 +38,4 @@ install-data-local:
$(LN_S) $(TEMPLATEDIR)/sync $(DESTDIR)$(SVCDIR)/sync@reboot
$(LN_S) $(TEMPLATEDIR)/sigkill $(DESTDIR)$(SVCDIR)/sigkill@reboot
$(LN_S) $(TEMPLATEDIR)/sigterm $(DESTDIR)$(SVCDIR)/sigterm@reboot
$(LN_S) $(TEMPLATEDIR)/ifcfg $(DESTDIR)$(SVCDIR)/ifcfg

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@ -53,8 +53,10 @@ AC_CONFIG_FILES([services/sysfs])
AC_CONFIG_FILES([services/devfs])
AC_CONFIG_FILES([services/procfs])
AC_CONFIG_FILES([services/ifrename])
AC_CONFIG_FILES([services/ifcfg])
AC_CONFIG_FILES([scripts/devfs.sh])
AC_CONFIG_FILES([scripts/ifrename.sh])
AC_CONFIG_FILES([scripts/ifcfg.sh])
AC_CONFIG_FILES([etc/initd.env])
AC_OUTPUT([Makefile])

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@ -1,3 +1,4 @@
helper_SCRIPTS += scripts/devfs.sh scripts/trymount.sh scripts/ifrename.sh
helper_SCRIPTS += scripts/ifcfg.sh
EXTRA_DIST += scripts/trymount.sh

89
scripts/ifcfg.sh.in Executable file
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@ -0,0 +1,89 @@
#!/bin/sh
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
# Copyright (C) 2018 - David Oberhollenzer
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
CFGPATH="@ETCPATH@/netcfg"
[ -d "$CFGPATH" ] || exit 0
# configure interfaces
for IFPATH in /sys/class/net/*; do
[ "$IFPATH" == "/sys/class/net/lo" ] && continue
IF=`basename $IFPATH`
CFGFILE="$CFGPATH/$IF"
[ -f "$CFGFILE" ] || continue
ip link set dev "$IF" down
while read LINE;
do
trimmed=`echo -- $LINE`
[ ! -z "$trimmed" ] || continue
set $trimmed
case "$1" in
address|addr|ip|ip6|ipv6)
shift
ip address add $@ dev "$IF"
;;
arp|multicast|mtu)
ip link set dev "$IF" $@
;;
offload)
shift
ethtool -K "$IF" $@
;;
*)
;;
esac
done < "$CFGFILE"
done
# configure static routs
if [ -f "$CFGPATH/routes" ]; then
while read LINE;
do
trimmed=`echo -- $LINE`
[ ! -z "$trimmed" ] || continue
set $trimmed
case "$1" in
route)
shift
ip route add $@
;;
rule)
shift
ip rule add $@
;;
*)
;;
esac
done < "$CFGFILE"
fi
# activate interfaces
for IFPATH in /sys/class/net/*; do
[ "$IFPATH" == "/sys/class/net/lo" ] && continue
IF=`basename $IFPATH`
[ ! -f "$CFGPATH/$IF" ] || ip link set dev "$IF" up
done

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@ -4,7 +4,7 @@ init_DATA += services/sysctl services/hwclock services/sysinit
init_DATA += services/reboot services/shutdown services/sigkill
init_DATA += services/sigterm services/sync services/devfs
init_DATA += services/sysfs services/procfs services/tmpfs
init_DATA += services/vfs services/ifrename
init_DATA += services/vfs services/ifrename services/ifcfg
EXTRA_DIST += services/sysinit services/vfs services/agetty services/hostname
EXTRA_DIST += services/hwclock services/loopback services/reboot

6
services/ifcfg.in Normal file
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@ -0,0 +1,6 @@
description "static network configuration"
type wait
target boot
after sysinit ifrename
exec "@SCRIPTDIR@/ifcfg.sh"