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qlcnic: support anti mac spoofing

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Administrator can configure to drop packet in transmit,
if it doesn't match interface mac address, in case of virtual function.

Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sony Chacko 2010-08-19 05:08:27 +00:00 committed by David S. Miller
parent 0325d69b2a
commit fe4d434da8
2 changed files with 12 additions and 0 deletions
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1
drivers/net/qlcnic/qlcnic.h
View file

@ -900,6 +900,7 @@ struct qlcnic_mac_req {
#define QLCNIC_BRIDGE_ENABLED 0X10
#define QLCNIC_DIAG_ENABLED 0x20
#define QLCNIC_ESWITCH_ENABLED 0x40
#define QLCNIC_MACSPOOF 0x200
#define QLCNIC_IS_MSI_FAMILY(adapter) \
((adapter)->flags & (QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED))

11
drivers/net/qlcnic/qlcnic_main.c
View file

@ -762,6 +762,11 @@ static void
qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
struct qlcnic_esw_func_cfg *esw_cfg)
{
adapter->flags &= ~QLCNIC_MACSPOOF;
if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
if (esw_cfg->mac_anti_spoof)
adapter->flags |= QLCNIC_MACSPOOF;
qlcnic_set_netdev_features(adapter, esw_cfg);
}
@ -1912,6 +1917,12 @@ qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
return NETDEV_TX_BUSY;
}
if (adapter->flags & QLCNIC_MACSPOOF) {
if (compare_ether_addr(eth_hdr(skb)->h_source,
adapter->mac_addr))
goto drop_packet;
}
frag_count = skb_shinfo(skb)->nr_frags + 1;
/* 4 fragments per cmd des */