domenico/openwrt_NSS_ACW
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

treewide: move MAC address patch functions to common library

Browse Source 
This unifies MAC address patch functions and moves them to a
common script. While those were implemented differently for
different targets, they all seem to do the same. The number of
different variants is significantly reduced by this patch.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This commit is contained in:
Adrian Schmutzler
2019-09-22 11:57:14 +02:00
committed by David Bauer
parent 5b6a809092
commit 2c60de0e3f
10 changed files with 81 additions and 210 deletions
Download Patch File Download Diff File Expand all files Collapse all files

59
package/base-files/files/lib/functions/caldata.sh
View File

@@ -73,3 +73,62 @@ caldata_valid() {
return $?
}
caldata_patch_chksum() {
local mac=$1
local mac_offset=$(($2))
local chksum_offset=$(($3))
local xor_mac
local xor_fw_mac
local xor_fw_chksum
xor_mac=${mac//:/}
xor_mac="${xor_mac:0:4} ${xor_mac:4:4} ${xor_mac:8:4}"
xor_fw_mac=$(hexdump -v -n 6 -s $mac_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
xor_fw_mac="${xor_fw_mac:0:4} ${xor_fw_mac:4:4} ${xor_fw_mac:8:4}"
xor_fw_chksum=$(hexdump -v -n 2 -s $chksum_offset -e '/1 "%02x"' /lib/firmware/$FIRMWARE)
xor_fw_chksum=$(xor $xor_fw_chksum $xor_fw_mac $xor_mac)
printf "%b" "\x${xor_fw_chksum:0:2}\x${xor_fw_chksum:2:2}" | \
dd of=/lib/firmware/$FIRMWARE conv=notrunc bs=1 seek=$chksum_offset count=2
}
caldata_patch_mac() {
local mac=$1
local mac_offset=$(($2))
local chksum_offset=$3
[ -z "$mac" -o -z "$mac_offset" ] && return
[ -n "$chksum_offset" ] && caldata_patch_chksum "$mac" "$mac_offset" "$chksum_offset"
macaddr_2bin $mac | dd of=/lib/firmware/$FIRMWARE conv=notrunc oflag=seek_bytes bs=6 seek=$mac_offset count=1 || \
caldata_die "failed to write MAC address to eeprom file"
}
ath9k_patch_mac() {
local mac=$1
caldata_patch_mac "$mac" 0x2
}
ath9k_patch_mac_crc() {
local mac=$1
local mac_offset=$2
local chksum_offset=$((mac_offset - 10))
caldata_patch_mac "$mac" "$mac_offset" "$chksum_offset"
}
ath10kcal_patch_mac() {
local mac=$1
caldata_patch_mac "$mac" 0x6
}
ath10kcal_patch_mac_crc() {
local mac=$1
caldata_patch_mac "$mac" 0x6 0x2
}