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GH-289: Add options to limit entries in http.log file fields

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The "orig_fuids", "orig_filenames", "orig_mime_types" http.log fields as
well as their "resp" counterparts are now limited to having
"HTTP::max_files_orig" or "HTTP::max_files_resp" entries, which are 15
by default.  The limit can also be ignored case-by-case via the
"HTTP::max_files_policy" hook.

Fixes GH-289
This commit is contained in:
Jon Siwek 2019-02-27 14:25:15 -06:00
parent 8b9d525097
commit 92b6656bad
9 changed files with 127 additions and 8 deletions
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23
testing/btest/scripts/base/protocols/http/multipart-file-limit.bro Normal file
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# @TEST-EXEC: bro -C -r $TRACES/http/multipart.trace
# @TEST-EXEC: btest-diff http.log
# @TEST-EXEC: bro -C -r $TRACES/http/multipart.trace %INPUT >out-limited
# @TEST-EXEC: mv http.log http-limited.log
# @TEST-EXEC: btest-diff http-limited.log
# @TEST-EXEC: btest-diff out-limited
# @TEST-EXEC: bro -C -r $TRACES/http/multipart.trace %INPUT ignore_http_file_limit=T >out-limit-ignored
# @TEST-EXEC: mv http.log http-limit-ignored.log
# @TEST-EXEC: btest-diff http-limit-ignored.log
# @TEST-EXEC: btest-diff out-limit-ignored
option ignore_http_file_limit = F;
redef HTTP::max_files_orig = 1;
redef HTTP::max_files_resp = 1;
hook HTTP::max_files_policy(f: fa_file, is_orig: bool)
{
print "max_files reached";
if ( ignore_http_file_limit )
break;
}