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tostercx/goip_pkg.md

Created February 18, 2022 08:08
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reversed GoIP PKG format
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goip_pkg.md

PKG format

offset sample name details
DB AD 47 5E magic
00 01 version PKG format version 1
00 00 encrypt resellers can crypt these?
00 2A 60 00 pkg_len total package length
69 4F 82 7D pkg_md5 md5 of rest of pkg
6B DE CA 4F -
BA F2 4E 95 -
F2 92 67 65 -
- these header blocks rpt -
00 B0 hb_size header size, including self
04 block # destination flash block - 4
00 comp_fl compression used?
00 1F 30 00 size one of these is the real \
00 1F 30 00 size and one is compressed size
00 00 10 00 off_pkg offset from pkg begining
00 00 00 00 flags ?
00 61 meta_sz metadata size (-self)
00 43 50 .. meta data, padded to x4 (\w sz)
00 0B name_sz name size (-self)
46 4C 41 .. name trailing nils, chk hb_size
- these header blocks rpt -
00 00 hb_size hb_size=0, end of parts
proceed to off_pkg for data
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