[Buildroot] [PATCH 1/7 v3] package/busybox: Add facility for DHCP hooks
Arnout Vandecappelle
arnout at mind.be
Sun Oct 12 14:14:37 UTC 2014
On 17/06/14 07:21, Jeremy Kerr wrote:
> The (u)dhcpc hook installed by the busybox package configures the
> network and exits. If we want to do anything further with a DHCP lease,
> we'd have to replace the script entirely.
>
> This change introduces a .d directory for hooks (based on the script
> filename), which are executed after the interface configuration. This
> allows packages to drop a script file in the .d directory to perform
> actions on DHCP events.
>
> We'll use this in a later change to notify petitboot of DHCP boot
> information.
>
> Signed-off-by: Jeremy Kerr <jk at ozlabs.org>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout at mind.be>
I could do some nitpicking but it's good enough as it is.
Regards,
Arnout
>
> ---
> package/busybox/busybox.mk | 2 ++
> package/busybox/udhcpc.script | 6 ++++++
> 2 files changed, 8 insertions(+)
>
> diff --git a/package/busybox/busybox.mk b/package/busybox/busybox.mk
> index c368b80..bddeb63 100644
> --- a/package/busybox/busybox.mk
> +++ b/package/busybox/busybox.mk
> @@ -222,6 +222,8 @@ define BUSYBOX_INSTALL_TARGET_CMDS
> if [ ! -f $(TARGET_DIR)/usr/share/udhcpc/default.script ]; then \
> $(INSTALL) -m 0755 -D package/busybox/udhcpc.script \
> $(TARGET_DIR)/usr/share/udhcpc/default.script; \
> + $(INSTALL) -m 755 -d \
> + $(TARGET_DIR)/usr/share/udhcpc/default.script.d; \
> fi
> $(BUSYBOX_INSTALL_MDEV_SCRIPT)
> $(BUSYBOX_INSTALL_MDEV_CONF)
> diff --git a/package/busybox/udhcpc.script b/package/busybox/udhcpc.script
> index e23d1f1..50c52e6 100755
> --- a/package/busybox/udhcpc.script
> +++ b/package/busybox/udhcpc.script
> @@ -64,4 +64,10 @@ case "$1" in
> ;;
> esac
>
> +HOOK_DIR="$0.d"
> +for hook in "${HOOK_DIR}/"*; do
> + [ -f "${hook}" -a -x "${hook}" ] || continue
> + "${hook}" "${@}"
> +done
> +
> exit 0
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--
Arnout Vandecappelle arnout at mind be
Senior Embedded Software Architect +32-16-286500
Essensium/Mind http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
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