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| author | Jakub Kicinski <kuba@kernel.org> | 2022-07-05 16:59:24 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-07-06 12:56:35 +0100 |
| commit | 88527790c079fb1ea41cbcfa4450ee37906a2fb0 (patch) | |
| tree | abf64848744f5edeed09b97460562add63d79ad8 /include/linux/sockptr.h | |
| parent | ce61327ce989b63c0bd1cc7afee00e218ee696ac (diff) | |
| download | lwn-88527790c079fb1ea41cbcfa4450ee37906a2fb0.tar.gz lwn-88527790c079fb1ea41cbcfa4450ee37906a2fb0.zip | |
tls: rx: add sockopt for enabling optimistic decrypt with TLS 1.3
Since optimisitic decrypt may add extra load in case of retries
require socket owner to explicitly opt-in.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/sockptr.h')
| -rw-r--r-- | include/linux/sockptr.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/sockptr.h b/include/linux/sockptr.h index ea193414298b..d45902fb4cad 100644 --- a/include/linux/sockptr.h +++ b/include/linux/sockptr.h @@ -102,4 +102,12 @@ static inline long strncpy_from_sockptr(char *dst, sockptr_t src, size_t count) return strncpy_from_user(dst, src.user, count); } +static inline int check_zeroed_sockptr(sockptr_t src, size_t offset, + size_t size) +{ + if (!sockptr_is_kernel(src)) + return check_zeroed_user(src.user + offset, size); + return memchr_inv(src.kernel + offset, 0, size) == NULL; +} + #endif /* _LINUX_SOCKPTR_H */ |