qlcnic: support anti mac spoofing
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>
diff --git a/drivers/net/qlcnic/qlcnic.h b/drivers/net/qlcnic/qlcnic.h
index 9433a05..b58c411 100644
--- a/drivers/net/qlcnic/qlcnic.h
+++ b/drivers/net/qlcnic/qlcnic.h
@@ -900,6 +900,7 @@
#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))
diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index aa1f6b3..de4be00 100644
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -762,6 +762,11 @@
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 @@
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 */