[Buildroot] [PATCH v2] package/iptables: add init script

[José Pekkarinen]

On Tue, Sep 14, 2021 at 7:22 PM Baruch Siach <baruch at tkos.co.il> wrote:

> Hi José,
>
> On Tue, Sep 14 2021, José Pekkarinen wrote:
> > This patch will add an init script that allows
> > to set a ruleset in /etc/iptables.conf to be loaded
> > on boot, or flushed on stop, as well as a saving
> > command to generate a new file.
> >
> > Signed-off-by: José Pekkarinen <jose.pekkarinen at unikie.com>
> > ---
> > [v1 -> v2] s/touch $(DESTDIR)/touch $(TARGET_DIR)/
> >
> >  package/iptables/S41iptables | 58 ++++++++++++++++++++++++++++++++++++
> >  package/iptables/iptables.mk |  6 ++++
> >  2 files changed, 64 insertions(+)
> >  create mode 100644 package/iptables/S41iptables
> >
> > diff --git a/package/iptables/S41iptables b/package/iptables/S41iptables
> > new file mode 100644
> > index 0000000000..93998b78de
> > --- /dev/null
> > +++ b/package/iptables/S41iptables
> > @@ -0,0 +1,58 @@
> > +#!/bin/sh
> > +
> > +DAEMON="iptables"
> > +
> > +IPTABLES_ARGS=""
> > +
> > +start() {
> > +     printf 'Starting %s: ' "$DAEMON"
> > +     iptables-restore < /etc/iptables.conf
> > +     status=$?
> > +     if [ "$status" -eq 0 ]; then
> > +             echo "OK"
> > +     else
> > +             echo "FAIL"
> > +     fi
> > +     return "$status"
> > +}
> > +
> > +stop() {
> > +     printf 'Stopping %s: ' "$DAEMON"
> > +     iptables -F
> > +     status=$?
> > +     if [ "$status" -eq 0 ]; then
> > +             echo "OK"
> > +     else
> > +             echo "FAIL"
> > +     fi
> > +     return "$status"
> > +}
> > +
> > +restart() {
> > +     stop
> > +     sleep 1
> > +     start
> > +}
> > +
> > +save() {
> > +     printf 'Saving %s: ' "$DAEMON"
> > +     iptables-save > /etc/iptables.conf
>
> What about read-only rootfs?
>

    Very good point, will it work if we check the rootfs
whether is ro or rw, and execute on that behalf?

    Thanks for the comments!

    José.


> baruch
>
> > +     status=$?
> > +     if [ "$status" -eq 0 ]; then
> > +             echo "OK"
> > +     else
> > +             echo "FAIL"
> > +     fi
> > +     return "$status"
> > +}
> > +
> > +case "$1" in
> > +     start|stop|restart|save)
> > +             "$1";;
> > +     reload)
> > +             # Restart, since there is no true "reload" feature.
> > +             restart;;
> > +     *)
> > +             echo "Usage: $0 {start|stop|restart|reload}"
> > +             exit 1
> > +esac
> > diff --git a/package/iptables/iptables.mk b/package/iptables/iptables.mk
> > index dc01466607..1d3612dbf6 100644
> > --- a/package/iptables/iptables.mk
> > +++ b/package/iptables/iptables.mk
> > @@ -57,4 +57,10 @@ define IPTABLES_LINUX_CONFIG_FIXUPS
> >       $(call KCONFIG_ENABLE_OPT,CONFIG_NETFILTER_XTABLES)
> >  endef
> >
> > +define IPTABLES_INSTALL_INIT_SYSV
> > +     $(INSTALL) -m 0755 -D package/iptables/S41iptables \
> > +             $(TARGET_DIR)/etc/init.d/S41iptables
> > +     touch $(TARGET_DIR)/etc/iptables.conf
> > +endef
> > +
> >  $(eval $(autotools-package))
>
>
> --
>                                                      ~. .~   Tk Open
> Systems
> =}------------------------------------------------ooO--U--Ooo------------{=
>    - baruch at tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -
>


-- 

José.
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