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authorPatrick McHardy <kaber@trash.net>2008-04-06 23:42:55 -0700
committerChris Wright <chrisw@sous-sol.org>2008-04-18 18:53:26 -0700
commit1bb175b624fe8cf8b6acb5abb45810727a98ad80 (patch)
treea2e67472f1a65de4de8c94d7017440c0a3577280
parent746b23e44e933a993777eb054ab6b44724a43d6e (diff)
NET: Fix multicast device ioctl checks
Upstream commit: 61ee6bd487b9cc160e533034eb338f2085dc7922 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> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
-rw-r--r--net/core/dev.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 4d44372db5f7..82f77ef6d295 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3240,7 +3240,7 @@ 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))
@@ -3249,7 +3249,7 @@ 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))