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net: macsec: Clones skb when netdev is in Primiscous mode

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When bridge0 is in Primiscous mode, passed the packets to macsec

Change-Id: Ib325e0bb19cee792a8dd3759a4e752581e48827b
Signed-off-by: Karthik Rudrapatna <quic_krudrapa@quicinc.com>
This commit is contained in:
Karthik Rudrapatna 2021-11-10 12:15:01 -08:00 • committed by Gerrit - the friendly Code Review server
commit 7657f700dc
1 changed files with 23 additions and 3 deletions
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26
drivers/net/macsec.c
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@ -997,15 +997,26 @@ static enum rx_handler_result handle_not_macsec(struct sk_buff *skb)
* the SecTAG, so we have to deduce which port to deliver to.
*/
if (macsec_is_offloaded(macsec) && netif_running(ndev)) {
if (ether_addr_equal_64bits(hdr->h_dest,
if (hdr->h_proto == htons(ETH_P_PAE))
continue;
if (ndev->flags & IFF_PROMISC) {
nskb = skb_clone(skb, GFP_ATOMIC);
if (!nskb)
break;
count_rx(ndev, nskb->len);
nskb->dev = ndev;
netif_rx(nskb);
} else if (ether_addr_equal_64bits(hdr->h_dest,
ndev->dev_addr)) {
/* exact match, divert skb to this port */
skb->dev = ndev;
skb->pkt_type = PACKET_HOST;
count_rx(ndev, skb->len);
ret = RX_HANDLER_ANOTHER;
goto out;
} else if (is_multicast_ether_addr_64bits(
hdr->h_dest)) {
} else if (is_multicast_ether_addr_64bits(hdr->h_dest)) {
/* multicast frame, deliver on this port too */
nskb = skb_clone(skb, GFP_ATOMIC);
if (!nskb)
@ -1018,6 +1029,7 @@ static enum rx_handler_result handle_not_macsec(struct sk_buff *skb)
else
nskb->pkt_type = PACKET_MULTICAST;
count_rx(ndev, nskb->len);
netif_rx(nskb);
}
continue;
@ -3353,6 +3365,14 @@ static netdev_tx_t macsec_start_xmit(struct sk_buff *skb,
return dev_queue_xmit(skb);
}
if (macsec_is_offloaded(netdev_priv(dev))) {
skb->dev = macsec->real_dev;
ret = dev_queue_xmit(skb);
len = skb->len;
count_tx(dev, ret, len);
return ret;
}
/* 10.5 */
if (!secy->protect_frames) {
secy_stats = this_cpu_ptr(macsec->stats);