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smb2/read: Parse only 1 byte for data_offset, ignore reserved1

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A user provided a SMB2 pcap with the reserved1 field of a ReadResponse
set to 1 instead of 0. This confused the padding computation due to
including this byte into the offset. Properly split data_offset and
reserved1 into individual byte fields.

Closes #4730
This commit is contained in:
Arne Welzel 2025-08-08 15:42:15 +02:00
parent 13f613eb1d
commit b2a2ad7e10
5 changed files with 26 additions and 2 deletions
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11
testing/btest/Baseline/scripts.base.protocols.smb.smb2-read-response-non-zero-reserved1/files.log Normal file
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### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
#separator \x09
#set_separator ,
#empty_field (empty)
#unset_field -
#path files
#open XXXX-XX-XX-XX-XX-XX
#fields ts fuid uid id.orig_h id.orig_p id.resp_h id.resp_p source depth analyzers mime_type filename duration local_orig is_orig seen_bytes total_bytes missing_bytes overflow_bytes timedout parent_fuid
#types time string string addr port addr port string count set[string] string string interval bool bool count count count count bool string
XXXXXXXXXX.XXXXXX FmcSEk2dq4v0hewpM4 CHhAvVGS1DHFjwGM9 172.31.112.17 57829 172.31.112.16 445 SMB 0 (empty) text/plain Test.txt 0.000000 T F 189 189 0 0 F -
#close XXXX-XX-XX-XX-XX-XX