Mercurial > hg > nginx-quic
view src/os/win32/nginx_icon32.xpm @ 7386:9200b41db765 stable-1.14
HTTP/2: limit the number of idle state switches.
An attack that continuously switches HTTP/2 connection between
idle and active states can result in excessive CPU usage.
This is because when a connection switches to the idle state,
all of its memory pool caches are freed.
This change limits the maximum allowed number of idle state
switches to 10 * http2_max_requests (i.e., 10000 by default).
This limits possible CPU usage in one connection, and also
imposes a limit on the maximum lifetime of a connection.
Initially reported by Gal Goldshtein from F5 Networks.
| author | Ruslan Ermilov <ru@nginx.com> |
|---|---|
| date | Tue, 06 Nov 2018 16:29:49 +0300 |
| parents | 7e24168b0853 |
| children |
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/* XPM */ static char * nginx_xpm[] = { "32 32 2 2", /* colors */ " c none", "GG c #009900", /* pixels */ " ", " ", " ", " ", " GGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGG GGGGGGGGGG ", " GGGGGGGGGG GGGGGGGGGG ", " GGGGGGGGGG GGGGGGGGGG ", " GGGGGGGGGG GGGGGGGGGG ", " GGGGGGGGGG ", " GGGGGGGGGG ", " GGGGGGGGGG GGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGG GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGG GGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGG GGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGG GGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGG GGGGGGGGGG ", " GGGGGGGGGG GGGGGGGGGG ", " GGGGGGGGGG GGGGGGGGGG ", " GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " GGGGGGGGGGGGGGGGGGGGGGGGGGGG ", " ", " ", " ", " "