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authorJakub Kicinski <kuba@kernel.org>2022-07-22 16:50:27 -0700
committerJakub Kicinski <kuba@kernel.org>2022-07-26 14:38:50 -0700
commitb92a13d488de2e87c869a4a6c0393d1f9eebe6dd (patch)
tree86dd8c7affd71e91ffe197787891b414b8a223c6 /net/tls
parent4fd310c74432d19e8f58a4291b44db0ddebe7bf3 (diff)
tls: rx: wrap recv_pkt accesses in helpers
To allow for the logic to change later wrap accesses which interrogate the input skb in helper functions. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/tls')
-rw-r--r--net/tls/tls.h5
-rw-r--r--net/tls/tls_sw.c11
2 files changed, 11 insertions, 5 deletions
diff --git a/net/tls/tls.h b/net/tls/tls.h
index 3740740504e3..24bec1c5f1e8 100644
--- a/net/tls/tls.h
+++ b/net/tls/tls.h
@@ -142,6 +142,11 @@ static inline struct sk_buff *tls_strp_msg(struct tls_sw_context_rx *ctx)
return ctx->recv_pkt;
}
+static inline bool tls_strp_msg_ready(struct tls_sw_context_rx *ctx)
+{
+ return ctx->recv_pkt;
+}
+
#ifdef CONFIG_TLS_DEVICE
int tls_device_init(void);
void tls_device_cleanup(void);
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index ed5e6f1df9c7..cb99fc11997b 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -1289,7 +1289,7 @@ tls_rx_rec_wait(struct sock *sk, struct sk_psock *psock, bool nonblock,
struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);
DEFINE_WAIT_FUNC(wait, woken_wake_function);
- while (!ctx->recv_pkt) {
+ while (!tls_strp_msg_ready(ctx)) {
if (!sk_psock_queue_empty(psock))
return 0;
@@ -1298,7 +1298,7 @@ tls_rx_rec_wait(struct sock *sk, struct sk_psock *psock, bool nonblock,
if (!skb_queue_empty(&sk->sk_receive_queue)) {
__strp_unpause(&ctx->strp);
- if (ctx->recv_pkt)
+ if (tls_strp_msg_ready(ctx))
break;
}
@@ -1314,7 +1314,8 @@ tls_rx_rec_wait(struct sock *sk, struct sk_psock *psock, bool nonblock,
add_wait_queue(sk_sleep(sk), &wait);
sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk);
sk_wait_event(sk, &timeo,
- ctx->recv_pkt || !sk_psock_queue_empty(psock),
+ tls_strp_msg_ready(ctx) ||
+ !sk_psock_queue_empty(psock),
&wait);
sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk);
remove_wait_queue(sk_sleep(sk), &wait);
@@ -1907,7 +1908,7 @@ int tls_sw_recvmsg(struct sock *sk,
zc_capable = !bpf_strp_enabled && !is_kvec && !is_peek &&
ctx->zc_capable;
decrypted = 0;
- while (len && (decrypted + copied < target || ctx->recv_pkt)) {
+ while (len && (decrypted + copied < target || tls_strp_msg_ready(ctx))) {
struct tls_decrypt_arg darg;
int to_decrypt, chunk;
@@ -2158,7 +2159,7 @@ bool tls_sw_sock_is_readable(struct sock *sk)
ingress_empty = list_empty(&psock->ingress_msg);
rcu_read_unlock();
- return !ingress_empty || ctx->recv_pkt ||
+ return !ingress_empty || tls_strp_msg_ready(ctx) ||
!skb_queue_empty(&ctx->rx_list);
}