Mirror/zeek
1
0
Fork 0
mirror of https://github.com/zeek/zeek.git synced 2025-10-04 15:48:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

HTTP: Recognize and skip upgrade/websocket connections.

Browse source 
This adds a slight patch to the HTTP analyzer, which recognizez when a connection is
upgraded to a different protocol (using a 101 reply with a few specific headers being
set).

In this case, the analyzer stops further processing of the connection (which will
result in DPD errors) and raises a new event:

event http_connection_upgrade(c: connection, protocol: string);

Protocol contains the name of the protocol that is being upgraded to, as specified in
one of the header values.
This commit is contained in:
Johanna Amann 2017-08-04 07:04:28 -07:00
parent dbac2b1abb
commit eab80c8834
8 changed files with 122 additions and 42 deletions
Download patch file Download diff file Expand all files Collapse all files

1
testing/btest/Baseline/scripts.base.protocols.http.101-switching-protocols/.stdout Normal file
View file

@ -0,0 +1 @@
Connection upgraded to websocket

10
testing/btest/Baseline/scripts.base.protocols.http.101-switching-protocols/http.log Normal file
View file

@ -0,0 +1,10 @@
#separator \x09
#set_separator ,
#empty_field (empty)
#unset_field -
#path http
#open 2017-08-04-00-45-31
#fields ts uid id.orig_h id.orig_p id.resp_h id.resp_p trans_depth method host uri referrer version user_agent request_body_len response_body_len status_code status_msg info_code info_msg tags username password proxied orig_fuids orig_filenames orig_mime_types resp_fuids resp_filenames resp_mime_types
#types time string addr port addr port count string string string string string string count count count string count string set[enum] string string set[string] vector[string] vector[string] vector[string] vector[string] vector[string] vector[string]
1501770877.501001 CHhAvVGS1DHFjwGM9 192.168.0.5 50798 54.148.114.85 80 1 GET sandbox.kaazing.net /echo?.kl=Y - 1.1 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:54.0) Gecko/20100101 Firefox/54.0 0 0 101 Web Socket Protocol Handshake 101 Web Socket Protocol Handshake (empty) - - - - - - - - -
#close 2017-08-04-00-45-31