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From: Peter Krystad <peter.krystad at linux.intel.com>
To: mptcp at lists.01.org
Subject: [MPTCP] [PATCH 2/2] mptcp: Ignore incoming MPTCP options when not MP_CAPABLE
Date: Tue, 22 Oct 2019 15:54:59 -0700	[thread overview]
Message-ID: <20191022225459.15312-3-peter.krystad@linux.intel.com> (raw)
In-Reply-To: 20191022225459.15312-1-peter.krystad@linux.intel.com

[-- Attachment #1: Type: text/plain, Size: 714 bytes --]

Any options received on a fallback subflow should be ignored.

squashto: Add handling of incoming MP_JOIN requests

Signed-off-by: Peter Krystad <peter.krystad(a)linux.intel.com>
---
 net/mptcp/options.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index dcd7273e488c..1b08e1193991 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -591,7 +591,7 @@ void mptcp_incoming_options(struct sock *sk, struct sk_buff *skb,
 	struct mptcp_options_received *mp_opt;
 	struct mptcp_ext *mpext;
 
-	if (!subflow->mp_capable)
+	if (!subflow->mp_capable && !subflow->mp_join)
 		return;
 
 	mp_opt = &opt_rx->mptcp;
-- 
2.17.2

                 reply	other threads:[~2019-10-22 22:54 UTC|newest]

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