The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 11, 2014

Filed:

Mar. 02, 2014
Applicant:

Fortinet, Inc., Sunnyvale, CA (US);

Inventor:

William Jeffrey Crawford, Coquitlam, CA;

Assignee:

Fortinet, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/56 (2013.01); H04L 12/861 (2013.01); H04L 29/06 (2006.01); G06F 17/30 (2006.01); G06F 11/00 (2006.01); G06F 21/00 (2013.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
G06F 21/56 (2013.01); H04L 49/90 (2013.01); H04L 63/0245 (2013.01); H04L 63/0281 (2013.01); G06F 17/30 (2013.01); G06F 11/00 (2013.01); G06F 21/00 (2013.01); H04L 67/06 (2013.01); H04L 67/28 (2013.01); H04L 67/289 (2013.01);
Abstract

Methods and systems for content filtering of remote file-system access protocols are provided. According to one embodiment, a remote file-system access protocol request issued by a client to a server is received at a network device logically interposed between the client and the server. The request is issued to the server by the network device. A single shared holding buffer, used for both read and write accesses to the file and used by multiple processes running on the client, is implemented by the network device for the file during a remote file-system access protocol session. Data being read from or written to the file as a result of the request is buffered into the buffer. Responsive to a predetermined event in relation to the remote file-system access protocol or the buffer, the existence or non-existence of malicious, dangerous or unauthorized content is determined by performing content filtering on the buffer.


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