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tls: rx: add sockopt for enabling optimistic decrypt with TLS 1.3

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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>
This commit is contained in:
Jakub Kicinski
2022-07-05 16:59:24 -07:00
committed by David S. Miller
parent ce61327ce9
commit 88527790c0
8 changed files with 122 additions and 7 deletions
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3
include/net/tls.h
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@@ -149,6 +149,7 @@ struct tls_sw_context_rx {
struct sk_buff *recv_pkt;
u8 async_capable:1;
u8 zc_capable:1;
atomic_t decrypt_pending;
/* protect crypto_wait with decrypt_pending*/
spinlock_t decrypt_compl_lock;
@@ -239,6 +240,7 @@ struct tls_context {
u8 tx_conf:3;
u8 rx_conf:3;
u8 zerocopy_sendfile:1;
u8 rx_no_pad:1;
int (*push_pending_record)(struct sock *sk, int flags);
void (*sk_write_space)(struct sock *sk);
@@ -358,6 +360,7 @@ int tls_sk_attach(struct sock *sk, int optname, char __user *optval,
void tls_err_abort(struct sock *sk, int err);
int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx);
void tls_update_rx_zc_capable(struct tls_context *tls_ctx);
void tls_sw_strparser_arm(struct sock *sk, struct tls_context *ctx);
void tls_sw_strparser_done(struct tls_context *tls_ctx);
int tls_sw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);