netdev - [PATCH net-next v2 2/5] tcp: rstreason: fully support in tcp

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240510122502.27850-3-kerneljasonxing@gmail.com>
Date: Fri, 10 May 2024 20:24:59 +0800
From: Jason Xing <kerneljasonxing@...il.com>
To: edumazet@...gle.com,
	dsahern@...nel.org,
	kuba@...nel.org,
	pabeni@...hat.com,
	davem@...emloft.net
Cc: netdev@...r.kernel.org,
	kerneljasonxing@...il.com,
	Jason Xing <kernelxing@...cent.com>
Subject: [PATCH net-next v2 2/5] tcp: rstreason: fully support in tcp_ack()

From: Jason Xing <kernelxing@...cent.com>

Based on the existing skb drop reason, updating the rstreason map can
help us finish the rstreason job in this function.

Signed-off-by: Jason Xing <kernelxing@...cent.com>
---
 include/net/rstreason.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/include/net/rstreason.h b/include/net/rstreason.h
index f87814a60205..69404c14f45d 100644
--- a/include/net/rstreason.h
+++ b/include/net/rstreason.h
@@ -10,6 +10,8 @@
 	FN(NO_SOCKET)			\
 	FN(TCP_INVALID_ACK_SEQUENCE)	\
 	FN(TCP_RFC7323_PAWS)		\
+	FN(TCP_TOO_OLD_ACK)		\
+	FN(TCP_ACK_UNSENT_DATA)		\
 	FN(MPTCP_RST_EUNSPEC)		\
 	FN(MPTCP_RST_EMPTCP)		\
 	FN(MPTCP_RST_ERESOURCE)		\
@@ -50,6 +52,13 @@ enum sk_rst_reason {
 	 * LINUX_MIB_PAWSESTABREJECTED, LINUX_MIB_PAWSACTIVEREJECTED
 	 */
 	SK_RST_REASON_TCP_RFC7323_PAWS,
+	/** @SK_RST_REASON_TCP_TOO_OLD_ACK: TCP ACK is too old */
+	SK_RST_REASON_TCP_TOO_OLD_ACK,
+	/**
+	 * @SK_RST_REASON_TCP_ACK_UNSENT_DATA: TCP ACK for data we haven't
+	 * sent yet
+	 */
+	SK_RST_REASON_TCP_ACK_UNSENT_DATA,
 
 	/* Copy from include/uapi/linux/mptcp.h.
 	 * These reset fields will not be changed since they adhere to
@@ -130,6 +139,10 @@ sk_rst_convert_drop_reason(enum skb_drop_reason reason)
 		return SK_RST_REASON_TCP_INVALID_ACK_SEQUENCE;
 	case SKB_DROP_REASON_TCP_RFC7323_PAWS:
 		return SK_RST_REASON_TCP_RFC7323_PAWS;
+	case SKB_DROP_REASON_TCP_TOO_OLD_ACK:
+		return SK_RST_REASON_TCP_TOO_OLD_ACK;
+	case SKB_DROP_REASON_TCP_ACK_UNSENT_DATA:
+		return SK_RST_REASON_TCP_ACK_UNSENT_DATA;
 	default:
 		/* If we don't have our own corresponding reason */
 		return SK_RST_REASON_NOT_SPECIFIED;
-- 
2.37.3