netdev - [PATCH net] chelsio/chtls: fix tls record info to user

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Message-Id: <20201020193930.12274-1-vinay.yadav@chelsio.com>
Date:   Wed, 21 Oct 2020 01:09:31 +0530
From:   Vinay Kumar Yadav <vinay.yadav@...lsio.com>
To:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org
Cc:     secdev@...lsio.com, Vinay Kumar Yadav <vinay.yadav@...lsio.com>
Subject: [PATCH net] chelsio/chtls: fix tls record info to user

tls record header is not getting updated correctly causing
application to close the connection in between data copy.
fixing it by finalizing current record whenever tls header
received.

Fixes: 17a7d24aa89d ("crypto: chtls - generic handling of data and hdr")
Signed-off-by: Vinay Kumar Yadav <vinay.yadav@...lsio.com>
---
 .../net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c   | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
index 9fb5ca6682ea..a5dcc576ba3c 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
+++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
@@ -1585,6 +1585,7 @@ static int chtls_pt_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
 			tp->urg_data = 0;
 
 		if ((avail + offset) >= skb->len) {
+			struct sk_buff *next_skb;
 			if (ULP_SKB_CB(skb)->flags & ULPCB_FLAG_TLS_HDR) {
 				tp->copied_seq += skb->len;
 				hws->rcvpld = skb->hdr_len;
@@ -1595,9 +1596,12 @@ static int chtls_pt_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
 			chtls_free_skb(sk, skb);
 			buffers_freed++;
 			hws->copied_seq = 0;
-			if (copied >= target &&
-			    !skb_peek(&sk->sk_receive_queue))
+			next_skb = skb_peek(&sk->sk_receive_queue);
+			if (copied >= target && !next_skb)
 				break;
+			if (ULP_SKB_CB(next_skb)->flags & ULPCB_FLAG_TLS_HDR)
+				break;
+
 		}
 	} while (len > 0);
 
-- 
2.18.1