[PATCH] connman: Ignore the NFS root network interface in init script

[PATCH] connman: Ignore the NFS root network interface in init script

[Jukka Rissanen]

The connman init.d script tried to ignore all the network interfaces
if NFS root is configured. We should only ignore the interface
that is used by NFS root.

[YOCTO #4587]

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
---
 meta/recipes-connectivity/connman/connman/connman | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/meta/recipes-connectivity/connman/connman/connman b/meta/recipes-connectivity/connman/connman/connman
index 67ba7c8..2625ade 100644
--- a/meta/recipes-connectivity/connman/connman/connman
+++ b/meta/recipes-connectivity/connman/connman/connman
@@ -29,8 +29,18 @@ done
 do_start() {
 	EXTRA_PARAM=""
 	if test $nfsroot -eq 1 ; then
-		ethn=`ifconfig | grep eth | sed -e "s/\(eth[0-9]\)\(.*\)/\1/"`
-		EXTRA_PARAM="-I $ethn"
+	    NET_DEVS=`cat /proc/net/dev | sed -ne 's/^\([a-zA-Z0-9 ]*\):.*$/\1/p'`
+	    NET_ADDR=`cat /proc/cmdline | sed -ne 's/^.*ip=\([^ ]*\):.*$/\1/p'`
+
+	    if [ x$NET_ADDR != x ]; then
+		for i in $NET_DEVS; do
+		    ADDR=`ifconfig $i | sed 's/addr://g' | sed -ne 's/^.*inet \([0-9.]*\) .*$/\1/p'`
+		    if [ "$NET_ADDR" = "$ADDR" ]; then
+			EXTRA_PARAM="-I $i"
+			break
+		    fi
+		done
+	    fi
 	fi
 	if [ -f @LIBDIR@/connman/wired-setup ] ; then
 		. @LIBDIR@/connman/wired-setup
-- 
1.7.11.7

Re: [PATCH] connman: Ignore the NFS root network interface in init script

[Yi Zhao]

This patch can not work on routerstationpro.

After apply this patch, the system can not boot up.

Here is the boot log (I print some variables):

...
Configuring network interfaces... ifup skipped for nfsroot interface eth0
run-parts: /etc/network/if-pre-up.d/nfsroot exited with code 1
Starting rpcbind daemon...done.
hwclock: can't open '/dev/misc/rtc': No such file or directory
Thu Sep 5 22:45:00 UTC 2013
hwclock: can't open '/dev/misc/rtc': No such file or directory
INIT: Entering runlevel: 5
Starting system message bus: dbus.
Starting Connection Manager
NET_DEVS = lo
eth1
sit0
eth0
NET_ADDR = 128.224.165.207:128.224.165.20:128.224.165.1:255.255.255.0::eth0
ADDR = 127.0.0.1
ADDR =
ADDR =
ADDR = 128.224.165.207
eth0: link down
nfs: server 128.224.165.20 not responding, still trying


The system can not boot up since eth0 down.

# cat /proc/cmdline
console=ttyS0,115200 root=/dev/nfs rw 
nfsroot=128.224.165.20:/export/pxeboot/vlm-boards/19256/rootfs 
ip=128.224.165.207:128.224.165.20:128.224.165.1:255.255.255.0::eth0:off 
board=UBNT-RSPRO ethaddr=00.00.00.33.46.63


于 2013年09月06日 15:23, Jukka Rissanen 写道:
> The connman init.d script tried to ignore all the network interfaces
> if NFS root is configured. We should only ignore the interface
> that is used by NFS root.
>
> [YOCTO #4587]
>
> Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
> ---
>   meta/recipes-connectivity/connman/connman/connman | 14 ++++++++++++--
>   1 file changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/meta/recipes-connectivity/connman/connman/connman b/meta/recipes-connectivity/connman/connman/connman
> index 67ba7c8..2625ade 100644
> --- a/meta/recipes-connectivity/connman/connman/connman
> +++ b/meta/recipes-connectivity/connman/connman/connman
> @@ -29,8 +29,18 @@ done
>   do_start() {
>   	EXTRA_PARAM=""
>   	if test $nfsroot -eq 1 ; then
> -		ethn=`ifconfig | grep eth | sed -e "s/\(eth[0-9]\)\(.*\)/\1/"`
> -		EXTRA_PARAM="-I $ethn"
> +	    NET_DEVS=`cat /proc/net/dev | sed -ne 's/^\([a-zA-Z0-9 ]*\):.*$/\1/p'`
> +	    NET_ADDR=`cat /proc/cmdline | sed -ne 's/^.*ip=\([^ ]*\):.*$/\1/p'`
> +
> +	    if [ x$NET_ADDR != x ]; then
> +		for i in $NET_DEVS; do
> +		    ADDR=`ifconfig $i | sed 's/addr://g' | sed -ne 's/^.*inet \([0-9.]*\) .*$/\1/p'`
> +		    if [ "$NET_ADDR" = "$ADDR" ]; then
> +			EXTRA_PARAM="-I $i"
> +			break
> +		    fi
> +		done
> +	    fi
>   	fi
>   	if [ -f @LIBDIR@/connman/wired-setup ] ; then
>   		. @LIBDIR@/connman/wired-setup

Re: [PATCH] connman: Ignore the NFS root network interface in init script

[Saul Wold]

On 09/06/2013 12:23 AM, Jukka Rissanen wrote:
> The connman init.d script tried to ignore all the network interfaces
> if NFS root is configured. We should only ignore the interface
> that is used by NFS root.
>
> [YOCTO #4587]
>
> Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
> ---
>   meta/recipes-connectivity/connman/connman/connman | 14 ++++++++++++--
>   1 file changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/meta/recipes-connectivity/connman/connman/connman b/meta/recipes-connectivity/connman/connman/connman
> index 67ba7c8..2625ade 100644
> --- a/meta/recipes-connectivity/connman/connman/connman
> +++ b/meta/recipes-connectivity/connman/connman/connman
> @@ -29,8 +29,18 @@ done
>   do_start() {
>   	EXTRA_PARAM=""
>   	if test $nfsroot -eq 1 ; then
> -		ethn=`ifconfig | grep eth | sed -e "s/\(eth[0-9]\)\(.*\)/\1/"`
> -		EXTRA_PARAM="-I $ethn"
> +	    NET_DEVS=`cat /proc/net/dev | sed -ne 's/^\([a-zA-Z0-9 ]*\):.*$/\1/p'`
> +	    NET_ADDR=`cat /proc/cmdline | sed -ne 's/^.*ip=\([^ ]*\):.*$/\1/p'`
> +
> +	    if [ x$NET_ADDR != x ]; then
> +		for i in $NET_DEVS; do
> +		    ADDR=`ifconfig $i | sed 's/addr://g' | sed -ne 's/^.*inet \([0-9.]*\) .*$/\1/p'`
> +		    if [ "$NET_ADDR" = "$ADDR" ]; then
> +			EXTRA_PARAM="-I $i"
> +			break
> +		    fi
> +		done
> +	    fi
>   	fi
>   	if [ -f @LIBDIR@/connman/wired-setup ] ; then
>   		. @LIBDIR@/connman/wired-setup
>

This seems to have introduced a different issue, please see 
https://bugzilla.yoctoproject.org/show_bug.cgi?id=5176

Can you please look into this.

Thanks
	Sau!

Re: [PATCH] connman: Ignore the NFS root network interface in init script

[Enrico Scholz]

Jukka Rissanen <jukka.rissanen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
writes:

> The connman init.d script tried to ignore all the network interfaces
> if NFS root is configured. We should only ignore the interface that is
> used by NFS root.

This does not really work; e.g. here:

1. the cmdline is 'ip=dhcp' and won't be detected by your expression

2. system needs information from dhcp for DNS and NTP

3. system must renew the DHCP lease periodically


I wrote

   https://www.cvg.de/people/ensc/0001-added-noipconfig-option.patch

which fixes the last two issues (it's probably too invasive and specific
to be applied upstream).  I do not think that point 1 can be solved in a
generic way but requires some customization.



Enrico