[TS-3811] HTTP/2 window size must not exceed 2^31-1

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.0.0
• Component/s: HTTP/2
• Assignee: Masaori Koshiba
• Reporter: Masakazu Kitajo
• Created: 01/Aug/15 14:20
• Updated: 27/Jul/16 17:36
• Resolved: 05/Aug/15 16:10

Description

https://tools.ietf.org/html/rfc7540#section-6.9.1

A sender MUST NOT allow a flow-control window to exceed 2^31-1
octets. If a sender receives a WINDOW_UPDATE that causes a flow-
control window to exceed this maximum, it MUST terminate either the
stream or the connection, as appropriate. For streams, the sender
sends a RST_STREAM with an error code of FLOW_CONTROL_ERROR; for the
connection, a GOAWAY frame with an error code of FLOW_CONTROL_ERROR
is sent.

Currently, TS accepts such a invalid flow control.

It would cause overflow but is not critical, so I'm setting issue type as Improvement.

Issue Links

• blocks: TS-3808 ☂ Testing HTTP/2 features by h2spec