From: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Date: Wed, 23 Sep 2009 03:17:11 +0000 (+0000)
Subject: Phonet: error on broadcast sending (unimplemented)
X-Git-Tag: v2.6.32-rc1~21^2~9
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=18a1166de994685d770425086b2bcc1ba567f7ed;p=platform%2Fkernel%2Flinux-3.10.git

Phonet: error on broadcast sending (unimplemented)

If we ever implement this, then we can stop returning an error.

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/linux/phonet.h b/include/linux/phonet.h
index 1ef5a0781..e5126cf 100644
--- a/include/linux/phonet.h
+++ b/include/linux/phonet.h
@@ -38,6 +38,7 @@
 #define PNPIPE_IFINDEX		2
 
 #define PNADDR_ANY		0
+#define PNADDR_BROADCAST	0xFC
 #define PNPORT_RESOURCE_ROUTING	0
 
 /* Values for PNPIPE_ENCAP option */
diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
index a662e62..f60c0c2 100644
--- a/net/phonet/af_phonet.c
+++ b/net/phonet/af_phonet.c
@@ -168,6 +168,12 @@ static int pn_send(struct sk_buff *skb, struct net_device *dev,
 		goto drop;
 	}
 
+	/* Broadcast sending is not implemented */
+	if (pn_addr(dst) == PNADDR_BROADCAST) {
+		err = -EOPNOTSUPP;
+		goto drop;
+	}
+
 	skb_reset_transport_header(skb);
 	WARN_ON(skb_headroom(skb) & 1); /* HW assumes word alignment */
 	skb_push(skb, sizeof(struct phonethdr));