Merge remote-tracking branch 'remotes/awilliam/tags/vfio-fixes-20190702.0' into staging
[qemu/ar7.git] / include / net / filter.h
blob9bc6fa3cc656c08fce92d555cc613f364ef88a60
1 /*
2 * Copyright (c) 2015 FUJITSU LIMITED
3 * Author: Yang Hongyang <yanghy@cn.fujitsu.com>
5 * This work is licensed under the terms of the GNU GPL, version 2 or
6 * later. See the COPYING file in the top-level directory.
7 */
9 #ifndef QEMU_NET_FILTER_H
10 #define QEMU_NET_FILTER_H
12 #include "qapi/qapi-types-net.h"
13 #include "qom/object.h"
14 #include "net/queue.h"
16 #define TYPE_NETFILTER "netfilter"
17 #define NETFILTER(obj) \
18 OBJECT_CHECK(NetFilterState, (obj), TYPE_NETFILTER)
19 #define NETFILTER_GET_CLASS(obj) \
20 OBJECT_GET_CLASS(NetFilterClass, (obj), TYPE_NETFILTER)
21 #define NETFILTER_CLASS(klass) \
22 OBJECT_CLASS_CHECK(NetFilterClass, (klass), TYPE_NETFILTER)
24 typedef void (FilterSetup) (NetFilterState *nf, Error **errp);
25 typedef void (FilterCleanup) (NetFilterState *nf);
27 * Return:
28 * 0: finished handling the packet, we should continue
29 * size: filter stolen this packet, we stop pass this packet further
31 typedef ssize_t (FilterReceiveIOV)(NetFilterState *nc,
32 NetClientState *sender,
33 unsigned flags,
34 const struct iovec *iov,
35 int iovcnt,
36 NetPacketSent *sent_cb);
38 typedef void (FilterStatusChanged) (NetFilterState *nf, Error **errp);
40 typedef void (FilterHandleEvent) (NetFilterState *nf, int event, Error **errp);
42 typedef struct NetFilterClass {
43 ObjectClass parent_class;
45 /* optional */
46 FilterSetup *setup;
47 FilterCleanup *cleanup;
48 FilterStatusChanged *status_changed;
49 FilterHandleEvent *handle_event;
50 /* mandatory */
51 FilterReceiveIOV *receive_iov;
52 } NetFilterClass;
55 struct NetFilterState {
56 /* private */
57 Object parent;
59 /* protected */
60 char *netdev_id;
61 NetClientState *netdev;
62 NetFilterDirection direction;
63 bool on;
64 QTAILQ_ENTRY(NetFilterState) next;
67 ssize_t qemu_netfilter_receive(NetFilterState *nf,
68 NetFilterDirection direction,
69 NetClientState *sender,
70 unsigned flags,
71 const struct iovec *iov,
72 int iovcnt,
73 NetPacketSent *sent_cb);
75 /* pass the packet to the next filter */
76 ssize_t qemu_netfilter_pass_to_next(NetClientState *sender,
77 unsigned flags,
78 const struct iovec *iov,
79 int iovcnt,
80 void *opaque);
82 void colo_notify_filters_event(int event, Error **errp);
84 #endif /* QEMU_NET_FILTER_H */