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| author | INAGAKI Hiroshi <musashino.open@gmail.com> | 2024-05-11 14:14:16 +0900 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2024-05-25 19:33:28 +0200 |
| commit | cd2a6906daff74c417d939aa14704f5d98bc7501 (patch) | |
| tree | 7dd96370ce0196193087c8676e0030c6f786cc00 /target/linux/ramips | |
| parent | 8366e0d606d3d01c89d65eeb31e8c780024eb7ad (diff) | |
| download | openwrt-cd2a6906daff74c417d939aa14704f5d98bc7501.tar.gz openwrt-cd2a6906daff74c417d939aa14704f5d98bc7501.tar.bz2 openwrt-cd2a6906daff74c417d939aa14704f5d98bc7501.zip | |
ramips: parameterize some values in Build/znet-header
Parameterize magic number and header length to use the device-specific
values.
example:
On WRC-X1800GS, an additional ELECOM-specific header and a magic number
"COMC" are required.
Stock FW v1.18:
$ hexdump -n $((0x40080)) -C wrc-x1800gs_v1.18.bin
00000000 45 4c 45 43 4f 4d 00 00 57 52 43 2d 58 31 38 30 |ELECOM..WRC-X180|
00000010 30 47 53 00 00 00 00 00 00 00 00 00 00 00 00 00 |0GS.............|
00000020 00 00 00 00 00 00 00 00 31 2e 31 38 00 00 00 00 |........1.18....|
00000030 00 00 00 00 00 00 00 00 43 4f 4d 43 04 00 ac 00 |........COMC....|
00000040 40 f0 49 74 b1 e8 6a ca e4 20 65 1f 34 2e 30 34 |@.It..j.. e.4.04|
00000050 28 58 56 46 2e 31 29 62 31 37 00 00 00 00 00 00 |(XVF.1)b17......|
00000060 00 00 00 00 00 00 00 00 ff ff ff ff ff ff ff ff |................|
00000070 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
*
00040000 d0 0d fe ed 00 36 9c c0 00 00 00 38 00 36 9a e0 |.....6.....8.6..|
00040010 00 00 00 28 00 00 00 11 00 00 00 10 00 00 00 00 |...(............|
00040020 00 00 00 6c 00 36 9a a8 00 00 00 00 00 00 00 00 |...l.6..........|
00040030 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 |................|
00040040 00 00 00 03 00 00 00 04 00 00 00 62 65 54 97 8f |...........beT..|
00040050 00 00 00 03 00 00 00 28 00 00 00 00 4d 49 50 53 |.......(....MIPS|
00040060 20 4f 70 65 6e 57 72 74 20 46 49 54 20 28 46 6c | OpenWrt FIT (Fl|
00040070 61 74 74 65 6e 65 64 20 49 6d 61 67 65 20 54 72 |attened Image Tr|
00040080
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Diffstat (limited to 'target/linux/ramips')
| -rw-r--r-- | target/linux/ramips/image/mt7621.mk | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk index 33fcc805d9..1c6cd237d3 100644 --- a/target/linux/ramips/image/mt7621.mk +++ b/target/linux/ramips/image/mt7621.mk @@ -99,13 +99,15 @@ endef define Build/znet-header $(eval version=$(word 1,$(1))) + $(eval magic=$(if $(word 2,$(1)),$(word 2,$(1)),ZNET)) + $(eval hdrlen=$(if $(word 3,$(1)),$(word 3,$(1)),0x30)) ( \ data_size_crc="$$(dd if=$@ 2>/dev/null | gzip -c | \ tail -c 8 | od -An -N4 -tx4 --endian big | tr -d ' \n')"; \ payload_len="$$(dd if=$@ bs=4 count=1 skip=1 2>/dev/null | od -An -tdI --endian big | tr -d ' \n')"; \ payload_size_crc="$$(dd if=$@ ibs=1 count=$$payload_len 2>/dev/null | gzip -c | \ tail -c 8 | od -An -N4 -tx4 --endian big | tr -d ' \n')"; \ - echo -ne "\x5A\x4E\x45\x54" | dd bs=4 count=1 conv=sync 2>/dev/null; \ + echo -ne "$(magic)" | dd bs=4 count=1 conv=sync 2>/dev/null; \ echo -ne "$$(printf '%08x' $$(stat -c%s $@) | fold -s2 | xargs -I {} echo \\x{} | tac | tr -d '\n')" | \ dd bs=4 count=1 conv=sync 2>/dev/null; \ echo -ne "$$(echo $$data_size_crc | sed 's/../\\x&/g')" | \ @@ -114,7 +116,7 @@ define Build/znet-header dd bs=4 count=1 conv=sync 2>/dev/null; \ echo -ne "\x12\x34\x56\x78" | dd bs=4 count=1 conv=sync 2>/dev/null; \ echo -ne "$(version)" | dd bs=28 count=1 conv=sync 2>/dev/null; \ - dd if=/dev/zero bs=262096 count=1 conv=sync 2>/dev/null | tr "\000" "\377"; \ + dd if=/dev/zero bs=$$((0x40000 - $(hdrlen))) count=1 conv=sync 2>/dev/null | tr "\000" "\377"; \ cat $@; \ ) > $@.new mv $@.new $@ |