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| author | Jason Xing <kernelxing@tencent.com> | 2024-04-25 05:13:38 +0200 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-04-26 15:34:00 +0200 |
| commit | 3e140491dd80d8643261a21efde3ce2ff6fb9fdf (patch) | |
| tree | 7b0acb322d0d480affef63ed96d717d74b523a7c /net/mptcp/protocol.h | |
| parent | tcp: support rstreason for passive reset (diff) | |
| download | linux-3e140491dd80d8643261a21efde3ce2ff6fb9fdf.tar.xz linux-3e140491dd80d8643261a21efde3ce2ff6fb9fdf.zip | |
mptcp: support rstreason for passive reset
It relies on what reset options in the skb are as rfc8684 says. Reusing
this logic can save us much energy. This patch replaces most of the prior
NOT_SPECIFIED reasons.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/mptcp/protocol.h')
| -rw-r--r-- | net/mptcp/protocol.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index fdfa843e2d88..252618859ee8 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -581,6 +581,33 @@ mptcp_subflow_ctx_reset(struct mptcp_subflow_context *subflow) WRITE_ONCE(subflow->local_id, -1); } +/* Convert reset reasons in MPTCP to enum sk_rst_reason type */ +static inline enum sk_rst_reason +sk_rst_convert_mptcp_reason(u32 reason) +{ + switch (reason) { + case MPTCP_RST_EUNSPEC: + return SK_RST_REASON_MPTCP_RST_EUNSPEC; + case MPTCP_RST_EMPTCP: + return SK_RST_REASON_MPTCP_RST_EMPTCP; + case MPTCP_RST_ERESOURCE: + return SK_RST_REASON_MPTCP_RST_ERESOURCE; + case MPTCP_RST_EPROHIBIT: + return SK_RST_REASON_MPTCP_RST_EPROHIBIT; + case MPTCP_RST_EWQ2BIG: + return SK_RST_REASON_MPTCP_RST_EWQ2BIG; + case MPTCP_RST_EBADPERF: + return SK_RST_REASON_MPTCP_RST_EBADPERF; + case MPTCP_RST_EMIDDLEBOX: + return SK_RST_REASON_MPTCP_RST_EMIDDLEBOX; + default: + /* It should not happen, or else errors may occur + * in MPTCP layer + */ + return SK_RST_REASON_ERROR; + } +} + static inline u64 mptcp_subflow_get_map_offset(const struct mptcp_subflow_context *subflow) { |