netdev - [PATCH net-next 02/24] sctp: use SCTP_FUTURE_ASSOC for SCTP_PEER_ADDR

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Date:   Mon, 28 Jan 2019 15:08:24 +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 02/24] sctp: use SCTP_FUTURE_ASSOC for SCTP_PEER_ADDR_PARAMS sockopt

Check with SCTP_FUTURE_ASSOC instead in
sctp_/setgetsockopt_peer_addr_params, it's compatible with 0.

Signed-off-by: Xin Long <lucien.xin@...il.com>
---
 net/sctp/socket.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index a52d132..4c43b95 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -2750,12 +2750,13 @@ static int sctp_setsockopt_peer_addr_params(struct sock *sk,
 			return -EINVAL;
 	}
 
-	/* Get association, if assoc_id != 0 and the socket is a one
-	 * to many style socket, and an association was not found, then
-	 * the id was invalid.
+	/* Get association, if assoc_id != SCTP_FUTURE_ASSOC and the
+	 * socket is a one to many style socket, and an association
+	 * was not found, then the id was invalid.
 	 */
 	asoc = sctp_id2assoc(sk, params.spp_assoc_id);
-	if (!asoc && params.spp_assoc_id && sctp_style(sk, UDP))
+	if (!asoc && params.spp_assoc_id != SCTP_FUTURE_ASSOC &&
+	    sctp_style(sk, UDP))
 		return -EINVAL;
 
 	/* Heartbeat demand can only be sent on a transport or
@@ -5676,12 +5677,13 @@ static int sctp_getsockopt_peer_addr_params(struct sock *sk, int len,
 		}
 	}
 
-	/* Get association, if assoc_id != 0 and the socket is a one
-	 * to many style socket, and an association was not found, then
-	 * the id was invalid.
+	/* Get association, if assoc_id != SCTP_FUTURE_ASSOC and the
+	 * socket is a one to many style socket, and an association
+	 * was not found, then the id was invalid.
 	 */
 	asoc = sctp_id2assoc(sk, params.spp_assoc_id);
-	if (!asoc && params.spp_assoc_id && sctp_style(sk, UDP)) {
+	if (!asoc && params.spp_assoc_id != SCTP_FUTURE_ASSOC &&
+	    sctp_style(sk, UDP)) {
 		pr_debug("%s: failed no association\n", __func__);
 		return -EINVAL;
 	}
-- 
2.1.0