From: Roopa Prabhu <[email protected]> This patch adds support in rtnetlink for IFLA_RX_FILTER set. It adds code in do_setlink to parse IFLA_RX_FILTER and call the rtnl_link_ops->set_rx_addr_filter and rtnl_link_ops->set_rx_vlan_filter to set MAC and VLAN filters.
Signed-off-by: Roopa Prabhu <[email protected]> Signed-off-by: Christian Benvenuti <[email protected]> Signed-off-by: David Wang <[email protected]> --- net/core/rtnetlink.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 67 insertions(+), 0 deletions(-) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index a3b213f..bc1074d 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1296,6 +1296,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, struct nlattr **tb, char *ifname, int modified) { const struct net_device_ops *ops = dev->netdev_ops; + const struct rtnl_link_ops *rtnl_ops; int send_addr_notify = 0; int err; @@ -1513,6 +1514,72 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, modified = 1; } } + + if (tb[IFLA_RX_FILTER]) { + struct nlattr *filters[IFLA_RX_FILTER_MAX+1]; + + err = -EOPNOTSUPP; + rtnl_ops = dev->rtnl_link_ops; + if (!rtnl_ops) + goto errout; + + err = nla_parse_nested(filters, + IFLA_RX_FILTER_MAX, tb[IFLA_RX_FILTER], + ifla_rx_filter_policy); + if (err < 0) + goto errout; + + if (filters[IFLA_RX_ADDR_FILTER]) { + struct nlattr *addr_filters[IFLA_ADDR_FILTER_MAX+1]; + + if (!rtnl_ops->set_rx_addr_filter) { + err = -EOPNOTSUPP; + goto errout; + } + + err = nla_parse_nested(addr_filters, + IFLA_ADDR_FILTER_MAX, + filters[IFLA_RX_ADDR_FILTER], + ifla_addr_filter_policy); + if (err < 0) + goto errout; + + if (addr_filters[IFLA_ADDR_FILTER_FLAGS]) { + unsigned int flags = nla_get_u32( + addr_filters[IFLA_ADDR_FILTER_FLAGS]); + if (flags & ~RX_FILTER_FLAGS) { + err = -EINVAL; + goto errout; + } + } + + err = rtnl_ops->set_rx_addr_filter(dev, addr_filters); + if (err < 0) + goto errout; + modified = 1; + } + + if (filters[IFLA_RX_VLAN_FILTER]) { + struct nlattr *vlan_filters[IFLA_VLAN_FILTER_MAX+1]; + + if (!rtnl_ops->set_rx_vlan_filter) { + err = -EOPNOTSUPP; + goto errout; + } + + err = nla_parse_nested(vlan_filters, + IFLA_VLAN_FILTER_MAX, + filters[IFLA_RX_VLAN_FILTER], + ifla_vlan_filter_policy); + if (err < 0) + goto errout; + + err = rtnl_ops->set_rx_vlan_filter(dev, vlan_filters); + if (err < 0) + goto errout; + modified = 1; + } + } err = 0; errout: -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
