From: Patrick McHardy <kaber@trash.net>
To: "David S. Miller" <davem@davemloft.net>
Cc: Linux Netdev List <netdev@vger.kernel.org>
Subject: [NET]: Fix multicast device ioctl checks
Date: Tue, 25 Mar 2008 13:54:53 +0100 [thread overview]
Message-ID: <47E8F61D.8040403@trash.net> (raw)
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commit 33fb000e9d0b9b20c226383ce775f06fdcd426bc
Author: Patrick McHardy <kaber@trash.net>
Date: Tue Mar 25 13:53:52 2008 +0100
[NET]: Fix multicast device ioctl checks
SIOCADDMULTI/SIOCDELMULTI check whether the driver has a set_multicast_list
method to determine whether it supports multicast. Drivers implementing
secondary unicast support use set_rx_mode however.
Check for both dev->set_multicast_mode and dev->set_rx_mode to determine
multicast capabilities.
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/net/core/dev.c b/net/core/dev.c
index fcdf03c..460e7f9 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3329,7 +3329,7 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd)
return -EOPNOTSUPP;
case SIOCADDMULTI:
- if (!dev->set_multicast_list ||
+ if ((!dev->set_multicast_list && !dev->set_rx_mode) ||
ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
return -EINVAL;
if (!netif_device_present(dev))
@@ -3338,7 +3338,7 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd)
dev->addr_len, 1);
case SIOCDELMULTI:
- if (!dev->set_multicast_list ||
+ if ((!dev->set_multicast_list && !dev->set_rx_mode) ||
ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
return -EINVAL;
if (!netif_device_present(dev))
next reply other threads:[~2008-03-25 12:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-25 12:54 Patrick McHardy [this message]
2008-03-26 9:12 ` [NET]: Fix multicast device ioctl checks David Miller
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