summaryrefslogtreecommitdiff
path: root/package/base-files/files/etc/uci-defaults/12_network-generate-ula
diff options
context:
space:
mode:
authorJo-Philipp Wich <jow@openwrt.org>2013-01-18 12:46:43 +0000
committerJo-Philipp Wich <jow@openwrt.org>2013-01-18 12:46:43 +0000
commit648bd409e35b1e05e585751a23aab8bbc2848359 (patch)
treead2368285f6d8b72649e353c1ce77d47ac2427c1 /package/base-files/files/etc/uci-defaults/12_network-generate-ula
parent3a2cccda2eb45c6b55ef33c73a4af2c88935f383 (diff)
downloadmtk-20170518-648bd409e35b1e05e585751a23aab8bbc2848359.zip
mtk-20170518-648bd409e35b1e05e585751a23aab8bbc2848359.tar.gz
mtk-20170518-648bd409e35b1e05e585751a23aab8bbc2848359.tar.bz2
base-files: use numerically prefixed uci-defaults names
SVN-Revision: 35218
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-ula18
1 files changed, 18 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..f3e4931
--- /dev/null
+++ b/package/base-files/files/etc/uci-defaults/12_network-generate-ula
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+[ "$(uci get network.globals.ula_prefix)" != "auto" ] && exit 0
+# Sometimes results are empty, therefore try until it works...
+local r1 r2 r3
+while [ -z "$r1" -o -z "$r2" -o -z "$r3" ]; do
+ r1=$(printf "%02x" $(($(</dev/urandom tr -dc 0-9 | dd bs=9 count=1) % 256)))
+ r2=$(printf "%01x" $(($(</dev/urandom tr -dc 0-9 | dd bs=9 count=1) % 65536)))
+ r3=$(printf "%01x" $(($(</dev/urandom tr -dc 0-9 | dd bs=9 count=1) % 65536)))
+done
+
+uci -q batch <<-EOF >/dev/null
+ set network.globals.ula_prefix=fd$r1:$r2:$r3::/48
+ commit network
+EOF
+
+exit 0
+