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VSOCK: Add virtio vsock vsockmon hooks

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The virtio drivers deal with struct virtio_vsock_pkt.  Add
virtio_transport_deliver_tap_pkt(pkt) for handing packets to the
vsockmon device.

We call virtio_transport_deliver_tap_pkt(pkt) from
net/vmw_vsock/virtio_transport.c and drivers/vhost/vsock.c instead of
common code.  This is because the drivers may drop packets before
handing them to common code - we still want to capture them.

Signed-off-by: Gerard Garcia <ggarcia@deic.uab.cat>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gerard Garcia
2017-04-21 10:10:46 +01:00
committed by David S. Miller
parent 0b2e66448b
commit 82dfb540ae
4 changed files with 76 additions and 0 deletions
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8
drivers/vhost/vsock.c
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@@ -176,6 +176,11 @@ vhost_transport_do_send_pkt(struct vhost_vsock *vsock,
restart_tx = true;
}
/* Deliver to monitoring devices all correctly transmitted
* packets.
*/
virtio_transport_deliver_tap_pkt(pkt);
virtio_transport_free_pkt(pkt);
}
if (added)
@@ -383,6 +388,9 @@ static void vhost_vsock_handle_tx_kick(struct vhost_work *work)
len = pkt->len;
/* Deliver to monitoring devices all received packets */
virtio_transport_deliver_tap_pkt(pkt);
/* Only accept correctly addressed packets */
if (le64_to_cpu(pkt->hdr.src_cid) == vsock->guest_cid)
virtio_transport_recv_pkt(pkt);