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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2024-07-29 09:35:54 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2024-07-29 09:35:54 +0200 |
| commit | 0e8655b4e852ef97655648b91ce780384a073ff4 (patch) | |
| tree | 11052a81da749dda3357f7748bdf93549c8007bf /include/net/request_sock.h | |
| parent | 0c3f3a83c7e8dfaaae4ba8a5b69bd6bc13340d0b (diff) | |
| parent | d4ef5d2b7ee0cbb5f2d864716140366a618400d6 (diff) | |
| download | linux-next-0e8655b4e852ef97655648b91ce780384a073ff4.tar.gz linux-next-0e8655b4e852ef97655648b91ce780384a073ff4.zip | |
Merge drm/drm-next into drm-misc-next
Backmerging to get a late RC of v6.10 before moving into v6.11.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'include/net/request_sock.h')
| -rw-r--r-- | include/net/request_sock.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/net/request_sock.h b/include/net/request_sock.h index d88c0dfc2d46..ebcb8896bffc 100644 --- a/include/net/request_sock.h +++ b/include/net/request_sock.h @@ -285,4 +285,16 @@ static inline int reqsk_queue_len_young(const struct request_sock_queue *queue) return atomic_read(&queue->young); } +/* RFC 7323 2.3 Using the Window Scale Option + * The window field (SEG.WND) of every outgoing segment, with the + * exception of <SYN> segments, MUST be right-shifted by + * Rcv.Wind.Shift bits. + * + * This means the SEG.WND carried in SYNACK can not exceed 65535. + * We use this property to harden TCP stack while in NEW_SYN_RECV state. + */ +static inline u32 tcp_synack_window(const struct request_sock *req) +{ + return min(req->rsk_rcv_wnd, 65535U); +} #endif /* _REQUEST_SOCK_H */ |