qed: Fix iWARP syn packet mac address validation.

The ll2 forwards all syn packets to the driver without validating the mac
address. Add validation check in the driver's iWARP listener flow and drop
the packet if it isn't intended for the device.

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
index e84fb01b91fd1ccb7b01cb0976c6b497e78b8387..ded556b7bab5e51d6cbaca834296fa0e66d72881 100644 (file)
--- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
@@ -1688,6 +1688,15 @@ qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn,
 
        eth_hlen = ETH_HLEN + (vlan_valid ? sizeof(u32) : 0);
 
+       if (!ether_addr_equal(ethh->h_dest,
+                             p_hwfn->p_rdma_info->iwarp.mac_addr)) {
+               DP_VERBOSE(p_hwfn,
+                          QED_MSG_RDMA,
+                          "Got unexpected mac %pM instead of %pM\n",
+                          ethh->h_dest, p_hwfn->p_rdma_info->iwarp.mac_addr);
+               return -EINVAL;
+       }
+
        ether_addr_copy(remote_mac_addr, ethh->h_source);
        ether_addr_copy(local_mac_addr, ethh->h_dest);