rootfs: try to use IP from old dot-config when no IP available

This commit is to manage with situation that there is no IP address at the moment of getting new dot-config. At this point IP can be available from barebox, but not always. New functionality checks for IP configuration in the old dot-config. IP will be reconfigured after getting new dot-config. Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

rootfs: try to use IP from old dot-config when no IP available
This commit is to manage with situation that there is no IP address at the moment of getting new dot-config. At this point IP can be available from barebox, but not always. New functionality checks for IP configuration in the old dot-config. IP will be reconfigured after getting new dot-config. Signed-off-by: Adam Wujek <adam.wujek@cern.ch>
e49a0c19 · Adam Wujek · 7ad5bcc7 · e49a0c19
Commit e49a0c19 authored Jul 06, 2015 by Adam Wujek 💬
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dot-config userspace/rootfs_override/etc/init.d/dot-config +6 -0

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--- a/userspace/rootfs_override/etc/init.d/dot-config
+++ b/userspace/rootfs_override/etc/init.d/dot-config
@@ -33,6 +33,12 @@ if [ -n "$CONFIG_DOTCONF_URL" ]; then
    # replace IPADDR and MACADDR, to have a device-specific name
    macaddr=$(cat /sys/class/net/eth0/address)
    ipaddr=$(ifconfig eth0 | grep inet | cut -d: -f 2 | cut '-d '  -f 1)
+    if [ -z "$ipaddr" ]; then
+	# if no IP address available from barebox try to get IP from old dot-config
+	# /etc/init.d/network will run later again
+	/etc/init.d/network
+	ipaddr=$(ifconfig eth0 | grep inet | cut -d: -f 2 | cut '-d '  -f 1)
+    fi
    URL=$(echo $CONFIG_DOTCONF_URL | \
 	sed -e s/MACADDR/$macaddr/ -e s/IPADDR/$ipaddr/)
    # split the parts, as we need to handle tftp by hand