aboutsummaryrefslogtreecommitdiffstats
path: root/package/base-files/files/etc/uci-defaults/12_network-generate-ula
diff options
context:
space:
mode:
Diffstat (limited to 'package/base-files/files/etc/uci-defaults/12_network-generate-ula')
-rw-r--r--package/base-files/files/etc/uci-defaults/12_network-generate-ula15
1 files changed, 15 insertions, 0 deletions
diff --git a/package/base-files/files/etc/uci-defaults/12_network-generate-ula b/package/base-files/files/etc/uci-defaults/12_network-generate-ula
new file mode 100644
index 0000000..8871427
--- /dev/null
+++ b/package/base-files/files/etc/uci-defaults/12_network-generate-ula
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+[ "$(uci -q get network.globals.ula_prefix)" != "auto" ] && exit 0
+
+r1=$(dd if=/dev/urandom bs=1 count=1 |hexdump -e '1/1 "%02x"')
+r2=$(dd if=/dev/urandom bs=2 count=1 |hexdump -e '2/1 "%02x"')
+r3=$(dd if=/dev/urandom bs=2 count=1 |hexdump -e '2/1 "%02x"')
+
+uci -q batch <<-EOF >/dev/null
+ set network.globals.ula_prefix=fd$r1:$r2:$r3::/48
+ commit network
+EOF
+
+exit 0
+