[OpenWrt-Devel] [PATCH v2] base-files: config_generate: split macaddr with multiple ifaces

[Adrian Schmutzler]

From: Sungbo Eo <mans0n at gorani.run>

netifd does not handle network. at device[x].name properly if it
contains multiple ifaces separated by spaces. Due to this, board.d
lan_mac setup does not work if multiple ifaces are set to LAN by
ucidef_set_interface_lan.

To fix this, create a device node for each member iface when
running config_generate instead. Those are named based on the
member ifname:

  ucidef_set_interface_lan "eth0 eth1.1"
  ucidef_set_interface_macaddr "lan" "yy:yy:yy:yy:yy:01"

will return

  config device 'eth0_dev'
        option name 'eth0'
        option macaddr 'yy:yy:yy:yy:yy:01'

  config device 'eth1_1_dev'
        option name 'eth1.1'
        option macaddr 'yy:yy:yy:yy:yy:01'

ref: https://github.com/openwrt/openwrt/pull/2542

Signed-off-by: Sungbo Eo <mans0n at gorani.run>
[only use new names, extend description, change commit title]
Signed-off-by: Adrian Schmutzler <freifunk at adrianschmutzler.de>

---

Changes in v2:
- Remove lan_dev/wan_dev, use new names consistently

I plan to also backport this to at least 19.07 and 18.06, as it's
essentially a fix.
---
 package/base-files/files/bin/config_generate | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/package/base-files/files/bin/config_generate b/package/base-files/files/bin/config_generate
index 3ca035ca8b..2f62912180 100755
--- a/package/base-files/files/bin/config_generate
+++ b/package/base-files/files/bin/config_generate
@@ -85,12 +85,16 @@ generate_network() {
 		set network.$1.proto='none'
 	EOF
 
-	[ -n "$macaddr" ] && uci -q batch <<-EOF
-		delete network.$1_dev
-		set network.$1_dev='device'
-		set network.$1_dev.name='$ifname'
-		set network.$1_dev.macaddr='$macaddr'
-	EOF
+	if [ -n "$macaddr" ]; then
+		for name in $ifname; do
+			uci -q batch <<-EOF
+				delete network.${name/./_}_dev
+				set network.${name/./_}_dev='device'
+				set network.${name/./_}_dev.name='$name'
+				set network.${name/./_}_dev.macaddr='$macaddr'
+			EOF
+		done
+	fi
 
 	case "$protocol" in
 		static)
-- 
2.20.1


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