netdev - [PATCH ipsec] xfrm: check DST_NOPOLICY as well as DST

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Message-Id: <20191204151714.20975-1-mgillott@vyatta.att-mail.com>
Date:   Wed,  4 Dec 2019 15:17:14 +0000
From:   Mark Gillott <mgillott@...tta.att-mail.com>
To:     netdev@...r.kernel.org
Cc:     steffen.klassert@...unet.com, herbert@...dor.apana.org.au,
        Mark Gillott <mgillott@...tta.att-mail.com>
Subject: [PATCH ipsec] xfrm: check DST_NOPOLICY as well as DST_NOXFRM

Before performing a policy bundle lookup, check the DST_NOPOLICY
option, as well as DST_NOXFRM. That is, skip further processing if
either of the disable_policy or disable_xfrm sysctl attributes are
set.

Signed-off-by: Mark Gillott <mgillott@...tta.att-mail.com>
---
 net/xfrm/xfrm_policy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index f2d1e573ea55..a84df1da54d1 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -3075,7 +3075,7 @@ struct dst_entry *xfrm_lookup_with_ifid(struct net *net,
 		xflo.flags = flags;
 
 		/* To accelerate a bit...  */
-		if ((dst_orig->flags & DST_NOXFRM) ||
+		if ((dst_orig->flags & (DST_NOXFRM | DST_NOPOLICY)) ||
 		    !net->xfrm.policy_count[XFRM_POLICY_OUT])
 			goto nopol;
 
-- 
2.17.1