| Bug ID |
8822
|
| Summary |
HTTP heuristic is expensive when checking binary TCP protocols
|
| Classification |
Unclassified
|
| Product |
Wireshark
|
| Version |
SVN
|
| Hardware |
x86
|
| OS |
All
|
| Status |
UNCONFIRMED
|
| Severity |
Trivial
|
| Priority |
Low
|
| Component |
Dissection engine (libwireshark)
|
| Assignee |
[email protected]
|
| Reporter |
[email protected]
|
Created attachment 11022 [details]
Returns if first byte isn't printable rather than scan to end of line.
Build Information:
--
In a profiled run with FTP traffic, the HTTP dissector looking for the end of a
line of data (which was binary) was taking around 3% of runtime.
The patch I will attach will make the HTTP dissector return immediately if the
first character is not printable, but I don't know the protocol well enough to
be sure that this is safe to do.
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