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authorGabor Juhos <juhosg@openwrt.org>2013-02-16 11:50:19 +0000
committerGabor Juhos <juhosg@openwrt.org>2013-02-16 11:50:19 +0000
commit70d40b2ddd2dd38f8528ba5a8067d17deb27eb9e (patch)
tree438d2083a832e0feae231c170c9393b89403d34c /package/base-files/files/lib
parentdd77663fb01538888918f5861546005f6f240143 (diff)
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base-files: add mtd_get_mac_{ascii,binary} helpers
Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 35612
Diffstat (limited to 'package/base-files/files/lib')
-rwxr-xr-xpackage/base-files/files/lib/functions.sh34
1 files changed, 34 insertions, 0 deletions
diff --git a/package/base-files/files/lib/functions.sh b/package/base-files/files/lib/functions.sh
index ae0257a5c5..2022e8a3aa 100755
--- a/package/base-files/files/lib/functions.sh
+++ b/package/base-files/files/lib/functions.sh
@@ -240,6 +240,40 @@ find_mtd_chardev() {
echo "${INDEX:+$PREFIX$INDEX}"
}
+mtd_get_mac_ascii()
+{
+ local mtdname="$1"
+ local key="$2"
+ local part
+ local mac_dirty
+
+ . /lib/functions.sh
+
+ part=$(find_mtd_part "$mtdname")
+ if [ -z "$part" ]; then
+ echo "mtd_get_mac_ascii: partition $mtdname not found!" >&2
+ return
+ fi
+
+ mac_dirty=$(strings "$part" | sed -n 's/'"$key"'=//p')
+ # "canonicalize" mac
+ printf "%02x:%02x:%02x:%02x:%02x:%02x" 0x${mac_dirty//:/ 0x}
+}
+
+mtd_get_mac_binary() {
+ local mtdname="$1"
+ local offset="$2"
+ local part
+
+ part=$(find_mtd_part "$mtdname")
+ if [ -z "$part" ]; then
+ echo "mtd_get_mac_binary: partition $mtdname not found!" >&2
+ return
+ fi
+
+ dd bs=1 skip=$offset count=6 if=$part 2>/dev/null | hexdump -v -n 6 -e '5/1 "%02x:" 1/1 "%02x"'
+}
+
strtok() { # <string> { <variable> [<separator>] ... }
local tmp
local val="$1"