2 * Copyright (c) 2010 Nicira Networks.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
24 #include "netdev-provider.h"
29 VLOG_DEFINE_THIS_MODULE(netdev_dummy
);
31 struct netdev_dev_dummy
{
32 struct netdev_dev netdev_dev
;
33 uint8_t hwaddr
[ETH_ADDR_LEN
];
35 struct netdev_stats stats
;
36 enum netdev_flags flags
;
37 unsigned int change_seq
;
44 static int netdev_dummy_create(const struct netdev_class
*, const char *,
45 const struct shash
*, struct netdev_dev
**);
46 static void netdev_dummy_poll_notify(const struct netdev
*);
49 is_dummy_class(const struct netdev_class
*class)
51 return class->create
== netdev_dummy_create
;
54 static struct netdev_dev_dummy
*
55 netdev_dev_dummy_cast(const struct netdev_dev
*netdev_dev
)
57 assert(is_dummy_class(netdev_dev_get_class(netdev_dev
)));
58 return CONTAINER_OF(netdev_dev
, struct netdev_dev_dummy
, netdev_dev
);
61 static struct netdev_dummy
*
62 netdev_dummy_cast(const struct netdev
*netdev
)
64 struct netdev_dev
*netdev_dev
= netdev_get_dev(netdev
);
65 assert(is_dummy_class(netdev_dev_get_class(netdev_dev
)));
66 return CONTAINER_OF(netdev
, struct netdev_dummy
, netdev
);
70 netdev_dummy_create(const struct netdev_class
*class, const char *name
,
71 const struct shash
*args
,
72 struct netdev_dev
**netdev_devp
)
74 static unsigned int n
= 0xaa550000;
75 struct netdev_dev_dummy
*netdev_dev
;
77 netdev_dev
= xzalloc(sizeof *netdev_dev
);
78 netdev_dev_init(&netdev_dev
->netdev_dev
, name
, args
, class);
79 netdev_dev
->hwaddr
[0] = 0xaa;
80 netdev_dev
->hwaddr
[1] = 0x55;
81 netdev_dev
->hwaddr
[2] = n
>> 24;
82 netdev_dev
->hwaddr
[3] = n
>> 16;
83 netdev_dev
->hwaddr
[4] = n
>> 8;
84 netdev_dev
->hwaddr
[5] = n
;
85 netdev_dev
->mtu
= 1500;
86 netdev_dev
->flags
= 0;
87 netdev_dev
->change_seq
= 1;
91 *netdev_devp
= &netdev_dev
->netdev_dev
;
97 netdev_dummy_destroy(struct netdev_dev
*netdev_dev_
)
99 struct netdev_dev_dummy
*netdev_dev
= netdev_dev_dummy_cast(netdev_dev_
);
105 netdev_dummy_open(struct netdev_dev
*netdev_dev_
, int ethertype OVS_UNUSED
,
106 struct netdev
**netdevp
)
108 struct netdev_dummy
*netdev
;
110 netdev
= xmalloc(sizeof *netdev
);
111 netdev_init(&netdev
->netdev
, netdev_dev_
);
113 *netdevp
= &netdev
->netdev
;
118 netdev_dummy_close(struct netdev
*netdev_
)
120 struct netdev_dummy
*netdev
= netdev_dummy_cast(netdev_
);
125 netdev_dummy_set_etheraddr(struct netdev
*netdev
,
126 const uint8_t mac
[ETH_ADDR_LEN
])
128 struct netdev_dev_dummy
*dev
=
129 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
131 if (!eth_addr_equals(dev
->hwaddr
, mac
)) {
132 memcpy(dev
->hwaddr
, mac
, ETH_ADDR_LEN
);
133 netdev_dummy_poll_notify(netdev
);
140 netdev_dummy_get_etheraddr(const struct netdev
*netdev
,
141 uint8_t mac
[ETH_ADDR_LEN
])
143 const struct netdev_dev_dummy
*dev
=
144 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
146 memcpy(mac
, dev
->hwaddr
, ETH_ADDR_LEN
);
151 netdev_dummy_get_mtu(const struct netdev
*netdev
, int *mtup
)
153 const struct netdev_dev_dummy
*dev
=
154 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
161 netdev_dummy_get_stats(const struct netdev
*netdev
, struct netdev_stats
*stats
)
163 const struct netdev_dev_dummy
*dev
=
164 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
171 netdev_dummy_set_stats(struct netdev
*netdev
, const struct netdev_stats
*stats
)
173 struct netdev_dev_dummy
*dev
=
174 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
181 netdev_dummy_update_flags(struct netdev
*netdev
,
182 enum netdev_flags off
, enum netdev_flags on
,
183 enum netdev_flags
*old_flagsp
)
185 struct netdev_dev_dummy
*dev
=
186 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
188 if ((off
| on
) & ~(NETDEV_UP
| NETDEV_PROMISC
)) {
192 *old_flagsp
= dev
->flags
;
195 if (*old_flagsp
!= dev
->flags
) {
196 netdev_dummy_poll_notify(netdev
);
202 netdev_dummy_change_seq(const struct netdev
*netdev
)
204 return netdev_dev_dummy_cast(netdev_get_dev(netdev
))->change_seq
;
207 /* Helper functions. */
210 netdev_dummy_poll_notify(const struct netdev
*netdev
)
212 struct netdev_dev_dummy
*dev
=
213 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
216 if (!dev
->change_seq
) {
221 static const struct netdev_class dummy_class
= {
228 netdev_dummy_destroy
,
229 NULL
, /* set_config */
230 NULL
, /* config_equal */
235 NULL
, /* enumerate */
238 NULL
, /* recv_wait */
242 NULL
, /* send_wait */
244 netdev_dummy_set_etheraddr
,
245 netdev_dummy_get_etheraddr
,
246 netdev_dummy_get_mtu
,
247 NULL
, /* get_ifindex */
248 NULL
, /* get_carrier */
249 NULL
, /* get_miimon */
250 netdev_dummy_get_stats
,
251 netdev_dummy_set_stats
,
253 NULL
, /* get_features */
254 NULL
, /* set_advertisements */
255 NULL
, /* get_vlan_vid */
257 NULL
, /* set_policing */
258 NULL
, /* get_qos_types */
259 NULL
, /* get_qos_capabilities */
262 NULL
, /* get_queue */
263 NULL
, /* set_queue */
264 NULL
, /* delete_queue */
265 NULL
, /* get_queue_stats */
266 NULL
, /* dump_queues */
267 NULL
, /* dump_queue_stats */
272 NULL
, /* add_router */
273 NULL
, /* get_next_hop */
274 NULL
, /* get_status */
275 NULL
, /* arp_lookup */
277 netdev_dummy_update_flags
,
279 netdev_dummy_change_seq
283 netdev_dummy_register(void)
285 netdev_register_provider(&dummy_class
);