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| author | Matthias P. Braendli <matthias.braendli@mpb.li> | 2020-03-24 17:52:22 +0100 |
|---|---|---|
| committer | Matthias P. Braendli <matthias.braendli@mpb.li> | 2020-03-24 17:52:22 +0100 |
| commit | 6606cb7f6c39096c8259dd1e2356a76baaa0b008 (patch) | |
| tree | 11ea609b6aef6460df11a920e8ccd20bc2a92ed8 /lib/edi/common.cpp | |
| parent | 69525b18ee7dc8cb6b56b047ed48bbe870f00e5f (diff) | |
| download | dabmod-6606cb7f6c39096c8259dd1e2356a76baaa0b008.tar.gz dabmod-6606cb7f6c39096c8259dd1e2356a76baaa0b008.tar.bz2 dabmod-6606cb7f6c39096c8259dd1e2356a76baaa0b008.zip | |
Pull add14d9: Properly handle EDI AF SEQ rollover
Diffstat (limited to 'lib/edi/common.cpp')
| -rw-r--r-- | lib/edi/common.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/edi/common.cpp b/lib/edi/common.cpp index c892425..470b3ba 100644 --- a/lib/edi/common.cpp +++ b/lib/edi/common.cpp @@ -242,7 +242,9 @@ decode_state_t TagDispatcher::decode_afpacket( return {false, 0}; } - if (m_last_seq + (uint16_t)1 != seq) { + // SEQ wraps at 0xFFFF, unsigned integer overflow is intentional + const uint16_t expected_seq = m_last_seq + 1; + if (expected_seq != seq) { etiLog.level(warn) << "EDI AF Packet sequence error, " << seq; } m_last_seq = seq; |