netdev - [PATCH net-next 06/24] sctp: use SCTP_FUTURE_ASSOC for SCTP_LOCAL_AUTH

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Message-Id: <285500315e06236e468142d80c6557eae4898b36.1548659198.git.lucien.xin@gmail.com>
Date:   Mon, 28 Jan 2019 15:08:28 +0800
From:   Xin Long <lucien.xin@...il.com>
To:     network dev <netdev@...r.kernel.org>, linux-sctp@...r.kernel.org
Cc:     Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Neil Horman <nhorman@...driver.com>, davem@...emloft.net
Subject: [PATCH net-next 06/24] sctp: use SCTP_FUTURE_ASSOC for SCTP_LOCAL_AUTH_CHUNKS sockopt

Check with SCTP_FUTURE_ASSOC instead in
sctp_getsockopt_local_auth_chunks, it's compatible with 0.

Signed-off-by: Xin Long <lucien.xin@...il.com>
---
 net/sctp/socket.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index f38c912..7df2123 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -6767,14 +6767,12 @@ static int sctp_getsockopt_local_auth_chunks(struct sock *sk, int len,
 
 	to = p->gauth_chunks;
 	asoc = sctp_id2assoc(sk, val.gauth_assoc_id);
-	if (!asoc && val.gauth_assoc_id && sctp_style(sk, UDP))
+	if (!asoc && val.gauth_assoc_id != SCTP_FUTURE_ASSOC &&
+	    sctp_style(sk, UDP))
 		return -EINVAL;
 
-	if (asoc)
-		ch = (struct sctp_chunks_param *)asoc->c.auth_chunks;
-	else
-		ch = ep->auth_chunk_list;
-
+	ch = asoc ? (struct sctp_chunks_param *)asoc->c.auth_chunks
+		  : ep->auth_chunk_list;
 	if (!ch)
 		goto num;
 
-- 
2.1.0