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tcp: rstreason: fully support in tcp_ack()

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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@tencent.com>
Link: https://lore.kernel.org/r/20240510122502.27850-3-kerneljasonxing@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jason Xing
2024-05-10 20:24:59 +08:00
committed by Jakub Kicinski
parent 2b9669d634
commit 459a2b37a4
1 changed files with 13 additions and 0 deletions
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13
include/net/rstreason.h
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@@ -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;