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| author | Adrian Schmutzler <freifunk@adrianschmutzler.de> | 2019-09-22 11:57:14 +0200 |
|---|---|---|
| committer | David Bauer <mail@david-bauer.net> | 2019-10-14 12:36:02 +0200 |
| commit | 2c60de0e3f8cbe088fe8e495697cb9e98380710d (patch) | |
| tree | a632a507208870d4b589dd7ee63d184ba6e2d0f3 /package/base-files/files/lib/functions | |
| parent | 5b6a80909280cafcb1e28ca120eed6922d68dc5a (diff) | |
| download | upstream-2c60de0e3f8cbe088fe8e495697cb9e98380710d.tar.gz upstream-2c60de0e3f8cbe088fe8e495697cb9e98380710d.tar.bz2 upstream-2c60de0e3f8cbe088fe8e495697cb9e98380710d.zip | |
treewide: move MAC address patch functions to common library
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>
Diffstat (limited to 'package/base-files/files/lib/functions')
| -rw-r--r-- | package/base-files/files/lib/functions/caldata.sh | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/package/base-files/files/lib/functions/caldata.sh b/package/base-files/files/lib/functions/caldata.sh index f2a306675f..004bcfa990 100644 --- a/package/base-files/files/lib/functions/caldata.sh +++ b/package/base-files/files/lib/functions/caldata.sh @@ -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 +} |