From 1bb175b624fe8cf8b6acb5abb45810727a98ad80 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Sun, 6 Apr 2008 23:42:55 -0700 Subject: 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 Signed-off-by: David S. Miller Signed-off-by: Chris Wright --- net/core/dev.c | 4 ++-- 1 file 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)) -- cgit v1.2.3