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-rw-r--r--net/phonet/af_phonet.c6
1 files changed, 6 insertions, 0 deletions
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));
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