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_dummy_notifier
{
32 struct netdev_notifier notifier
;
33 struct list list_node
;
34 struct shash_node
*shash_node
;
37 struct netdev_dev_dummy
{
38 struct netdev_dev netdev_dev
;
39 uint8_t hwaddr
[ETH_ADDR_LEN
];
41 struct netdev_stats stats
;
42 enum netdev_flags flags
;
49 static struct shash netdev_dummy_notifiers
=
50 SHASH_INITIALIZER(&netdev_dummy_notifiers
);
52 static int netdev_dummy_create(const struct netdev_class
*, const char *,
53 const struct shash
*, struct netdev_dev
**);
54 static void netdev_dummy_poll_notify(const struct netdev
*);
57 is_dummy_class(const struct netdev_class
*class)
59 return class->create
== netdev_dummy_create
;
62 static struct netdev_dev_dummy
*
63 netdev_dev_dummy_cast(const struct netdev_dev
*netdev_dev
)
65 assert(is_dummy_class(netdev_dev_get_class(netdev_dev
)));
66 return CONTAINER_OF(netdev_dev
, struct netdev_dev_dummy
, netdev_dev
);
69 static struct netdev_dummy
*
70 netdev_dummy_cast(const struct netdev
*netdev
)
72 struct netdev_dev
*netdev_dev
= netdev_get_dev(netdev
);
73 assert(is_dummy_class(netdev_dev_get_class(netdev_dev
)));
74 return CONTAINER_OF(netdev
, struct netdev_dummy
, netdev
);
78 netdev_dummy_create(const struct netdev_class
*class, const char *name
,
79 const struct shash
*args
,
80 struct netdev_dev
**netdev_devp
)
82 static unsigned int n
= 0xaa550000;
83 struct netdev_dev_dummy
*netdev_dev
;
85 netdev_dev
= xzalloc(sizeof *netdev_dev
);
86 netdev_dev_init(&netdev_dev
->netdev_dev
, name
, args
, class);
87 netdev_dev
->hwaddr
[0] = 0xaa;
88 netdev_dev
->hwaddr
[1] = 0x55;
89 netdev_dev
->hwaddr
[2] = n
>> 24;
90 netdev_dev
->hwaddr
[3] = n
>> 16;
91 netdev_dev
->hwaddr
[4] = n
>> 8;
92 netdev_dev
->hwaddr
[5] = n
;
93 netdev_dev
->mtu
= 1500;
94 netdev_dev
->flags
= 0;
98 *netdev_devp
= &netdev_dev
->netdev_dev
;
104 netdev_dummy_destroy(struct netdev_dev
*netdev_dev_
)
106 struct netdev_dev_dummy
*netdev_dev
= netdev_dev_dummy_cast(netdev_dev_
);
112 netdev_dummy_open(struct netdev_dev
*netdev_dev_
, int ethertype OVS_UNUSED
,
113 struct netdev
**netdevp
)
115 struct netdev_dummy
*netdev
;
117 netdev
= xmalloc(sizeof *netdev
);
118 netdev_init(&netdev
->netdev
, netdev_dev_
);
120 *netdevp
= &netdev
->netdev
;
125 netdev_dummy_close(struct netdev
*netdev_
)
127 struct netdev_dummy
*netdev
= netdev_dummy_cast(netdev_
);
132 netdev_dummy_set_etheraddr(struct netdev
*netdev
,
133 const uint8_t mac
[ETH_ADDR_LEN
])
135 struct netdev_dev_dummy
*dev
=
136 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
138 if (!eth_addr_equals(dev
->hwaddr
, mac
)) {
139 memcpy(dev
->hwaddr
, mac
, ETH_ADDR_LEN
);
140 netdev_dummy_poll_notify(netdev
);
147 netdev_dummy_get_etheraddr(const struct netdev
*netdev
,
148 uint8_t mac
[ETH_ADDR_LEN
])
150 const struct netdev_dev_dummy
*dev
=
151 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
153 memcpy(mac
, dev
->hwaddr
, ETH_ADDR_LEN
);
158 netdev_dummy_get_mtu(const struct netdev
*netdev
, int *mtup
)
160 const struct netdev_dev_dummy
*dev
=
161 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
168 netdev_dummy_get_stats(const struct netdev
*netdev
, struct netdev_stats
*stats
)
170 const struct netdev_dev_dummy
*dev
=
171 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
178 netdev_dummy_set_stats(struct netdev
*netdev
, const struct netdev_stats
*stats
)
180 struct netdev_dev_dummy
*dev
=
181 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
188 netdev_dummy_update_flags(struct netdev
*netdev
,
189 enum netdev_flags off
, enum netdev_flags on
,
190 enum netdev_flags
*old_flagsp
)
192 struct netdev_dev_dummy
*dev
=
193 netdev_dev_dummy_cast(netdev_get_dev(netdev
));
195 if ((off
| on
) & ~(NETDEV_UP
| NETDEV_PROMISC
)) {
199 *old_flagsp
= dev
->flags
;
202 if (*old_flagsp
!= dev
->flags
) {
203 netdev_dummy_poll_notify(netdev
);
209 netdev_dummy_poll_add(struct netdev
*netdev
,
210 void (*cb
)(struct netdev_notifier
*), void *aux
,
211 struct netdev_notifier
**notifierp
)
213 const char *name
= netdev_get_name(netdev
);
214 struct netdev_dummy_notifier
*notifier
;
216 struct shash_node
*shash_node
;
218 shash_node
= shash_find_data(&netdev_dummy_notifiers
, name
);
220 list
= xmalloc(sizeof *list
);
222 shash_node
= shash_add(&netdev_dummy_notifiers
, name
, list
);
224 list
= shash_node
->data
;
227 notifier
= xmalloc(sizeof *notifier
);
228 netdev_notifier_init(¬ifier
->notifier
, netdev
, cb
, aux
);
229 list_push_back(list
, ¬ifier
->list_node
);
230 notifier
->shash_node
= shash_node
;
232 *notifierp
= ¬ifier
->notifier
;
238 netdev_dummy_poll_remove(struct netdev_notifier
*notifier_
)
240 struct netdev_dummy_notifier
*notifier
=
241 CONTAINER_OF(notifier_
, struct netdev_dummy_notifier
, notifier
);
245 list
= list_remove(¬ifier
->list_node
);
246 if (list_is_empty(list
)) {
247 shash_delete(&netdev_dummy_notifiers
, notifier
->shash_node
);
254 /* Helper functions. */
257 netdev_dummy_poll_notify(const struct netdev
*netdev
)
259 const char *name
= netdev_get_name(netdev
);
260 struct list
*list
= shash_find_data(&netdev_dummy_notifiers
, name
);
263 struct netdev_dummy_notifier
*notifier
;
265 LIST_FOR_EACH (notifier
, list_node
, list
) {
266 struct netdev_notifier
*n
= ¬ifier
->notifier
;
272 static const struct netdev_class dummy_class
= {
279 netdev_dummy_destroy
,
285 NULL
, /* enumerate */
288 NULL
, /* recv_wait */
292 NULL
, /* send_wait */
294 netdev_dummy_set_etheraddr
,
295 netdev_dummy_get_etheraddr
,
296 netdev_dummy_get_mtu
,
297 NULL
, /* get_ifindex */
298 NULL
, /* get_carrier */
299 NULL
, /* get_miimon */
300 netdev_dummy_get_stats
,
301 netdev_dummy_set_stats
,
303 NULL
, /* get_features */
304 NULL
, /* set_advertisements */
305 NULL
, /* get_vlan_vid */
307 NULL
, /* set_policing */
308 NULL
, /* get_qos_types */
309 NULL
, /* get_qos_capabilities */
312 NULL
, /* get_queue */
313 NULL
, /* set_queue */
314 NULL
, /* delete_queue */
315 NULL
, /* get_queue_stats */
316 NULL
, /* dump_queues */
317 NULL
, /* dump_queue_stats */
322 NULL
, /* add_router */
323 NULL
, /* get_next_hop */
324 NULL
, /* get_status */
325 NULL
, /* arp_lookup */
327 netdev_dummy_update_flags
,
329 netdev_dummy_poll_add
,
330 netdev_dummy_poll_remove
,
334 netdev_dummy_register(void)
336 netdev_register_provider(&dummy_class
);