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net/handshake: Add helpers for parsing incoming TLS Alerts

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Kernel TLS consumers can replace common TLS Alert parsing code with
these helpers.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/169047942074.5241.13791647439480672048.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Chuck Lever
2023-07-27 13:37:10 -04:00
committed by Jakub Kicinski
parent 5dd5ad682c
commit 39d0e38dcc
2 changed files with 46 additions and 0 deletions
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4
include/net/handshake.h
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@@ -42,4 +42,8 @@ int tls_server_hello_psk(const struct tls_handshake_args *args, gfp_t flags);
bool tls_handshake_cancel(struct sock *sk);
void tls_handshake_close(struct socket *sock);
u8 tls_get_record_type(const struct sock *sk, const struct cmsghdr *msg);
void tls_alert_recv(const struct sock *sk, const struct msghdr *msg,
u8 *level, u8 *description);
#endif /* _NET_HANDSHAKE_H */