net: introduce NICState and qemu_new_nic()

Common state for all NICs.

The opaque member will replace the opaque member in VLANClientState
since only NICs need it.

The conf member will allow us to iterate over NICs, access the MAC
addr for the NIC and send a packet from each NIC in qemu_announce_self().

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/net.c b/net.c
index 355eb87..7195827 100644
--- a/net.c
+++ b/net.c
@@ -293,6 +293,27 @@ VLANClientState *qemu_new_net_client(NetClientInfo *info,
     return vc;
 }
 
+NICState *qemu_new_nic(NetClientInfo *info,
+                       NICConf *conf,
+                       const char *model,
+                       const char *name,
+                       void *opaque)
+{
+    VLANClientState *nc;
+    NICState *nic;
+
+    assert(info->type == NET_CLIENT_TYPE_NIC);
+    assert(info->size >= sizeof(NICState));
+
+    nc = qemu_new_net_client(info, conf->vlan, conf->peer, model, name);
+
+    nic = DO_UPCAST(NICState, nc, nc);
+    nic->conf = conf;
+    nic->opaque = opaque;
+
+    return nic;
+}
+
 VLANClientState *qemu_new_vlan_client(net_client_type type,
                                       VLANState *vlan,
                                       VLANClientState *peer,