Commit | Line | Data |
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ccb1352e | 1 | /* |
83c8df26 | 2 | * Copyright (c) 2007-2014 Nicira, Inc. |
ccb1352e JG |
3 | * |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of version 2 of the GNU General Public | |
6 | * License as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
16 | * 02110-1301, USA | |
17 | */ | |
18 | ||
ccb1352e JG |
19 | #include <linux/etherdevice.h> |
20 | #include <linux/if.h> | |
21 | #include <linux/if_vlan.h> | |
46df7b81 | 22 | #include <linux/jhash.h> |
ccb1352e JG |
23 | #include <linux/kernel.h> |
24 | #include <linux/list.h> | |
25 | #include <linux/mutex.h> | |
26 | #include <linux/percpu.h> | |
27 | #include <linux/rcupdate.h> | |
28 | #include <linux/rtnetlink.h> | |
29 | #include <linux/compat.h> | |
46df7b81 | 30 | #include <net/net_namespace.h> |
62b9c8d0 | 31 | #include <linux/module.h> |
ccb1352e | 32 | |
46df7b81 | 33 | #include "datapath.h" |
ccb1352e JG |
34 | #include "vport.h" |
35 | #include "vport-internal_dev.h" | |
36 | ||
62b9c8d0 | 37 | static LIST_HEAD(vport_ops_list); |
ccb1352e | 38 | |
8e4e1713 | 39 | /* Protected by RCU read lock for reading, ovs_mutex for writing. */ |
ccb1352e JG |
40 | static struct hlist_head *dev_table; |
41 | #define VPORT_HASH_BUCKETS 1024 | |
42 | ||
43 | /** | |
44 | * ovs_vport_init - initialize vport subsystem | |
45 | * | |
46 | * Called at module load time to initialize the vport subsystem. | |
47 | */ | |
48 | int ovs_vport_init(void) | |
49 | { | |
50 | dev_table = kzalloc(VPORT_HASH_BUCKETS * sizeof(struct hlist_head), | |
51 | GFP_KERNEL); | |
52 | if (!dev_table) | |
53 | return -ENOMEM; | |
54 | ||
55 | return 0; | |
56 | } | |
57 | ||
58 | /** | |
59 | * ovs_vport_exit - shutdown vport subsystem | |
60 | * | |
61 | * Called at module exit time to shutdown the vport subsystem. | |
62 | */ | |
63 | void ovs_vport_exit(void) | |
64 | { | |
65 | kfree(dev_table); | |
66 | } | |
67 | ||
12eb18f7 | 68 | static struct hlist_head *hash_bucket(const struct net *net, const char *name) |
ccb1352e | 69 | { |
46df7b81 | 70 | unsigned int hash = jhash(name, strlen(name), (unsigned long) net); |
ccb1352e JG |
71 | return &dev_table[hash & (VPORT_HASH_BUCKETS - 1)]; |
72 | } | |
73 | ||
62b9c8d0 TG |
74 | int ovs_vport_ops_register(struct vport_ops *ops) |
75 | { | |
76 | int err = -EEXIST; | |
77 | struct vport_ops *o; | |
78 | ||
79 | ovs_lock(); | |
80 | list_for_each_entry(o, &vport_ops_list, list) | |
81 | if (ops->type == o->type) | |
82 | goto errout; | |
83 | ||
84 | list_add_tail(&ops->list, &vport_ops_list); | |
85 | err = 0; | |
86 | errout: | |
87 | ovs_unlock(); | |
88 | return err; | |
89 | } | |
9ba559d9 | 90 | EXPORT_SYMBOL_GPL(ovs_vport_ops_register); |
62b9c8d0 TG |
91 | |
92 | void ovs_vport_ops_unregister(struct vport_ops *ops) | |
93 | { | |
94 | ovs_lock(); | |
95 | list_del(&ops->list); | |
96 | ovs_unlock(); | |
97 | } | |
9ba559d9 | 98 | EXPORT_SYMBOL_GPL(ovs_vport_ops_unregister); |
62b9c8d0 | 99 | |
ccb1352e JG |
100 | /** |
101 | * ovs_vport_locate - find a port that has already been created | |
102 | * | |
103 | * @name: name of port to find | |
104 | * | |
8e4e1713 | 105 | * Must be called with ovs or RCU read lock. |
ccb1352e | 106 | */ |
12eb18f7 | 107 | struct vport *ovs_vport_locate(const struct net *net, const char *name) |
ccb1352e | 108 | { |
46df7b81 | 109 | struct hlist_head *bucket = hash_bucket(net, name); |
ccb1352e | 110 | struct vport *vport; |
ccb1352e | 111 | |
b67bfe0d | 112 | hlist_for_each_entry_rcu(vport, bucket, hash_node) |
c9db965c | 113 | if (!strcmp(name, ovs_vport_name(vport)) && |
46df7b81 | 114 | net_eq(ovs_dp_get_net(vport->dp), net)) |
ccb1352e JG |
115 | return vport; |
116 | ||
117 | return NULL; | |
118 | } | |
119 | ||
120 | /** | |
121 | * ovs_vport_alloc - allocate and initialize new vport | |
122 | * | |
123 | * @priv_size: Size of private data area to allocate. | |
124 | * @ops: vport device ops | |
125 | * | |
126 | * Allocate and initialize a new vport defined by @ops. The vport will contain | |
127 | * a private data area of size @priv_size that can be accessed using | |
128 | * vport_priv(). vports that are no longer needed should be released with | |
129 | * vport_free(). | |
130 | */ | |
131 | struct vport *ovs_vport_alloc(int priv_size, const struct vport_ops *ops, | |
132 | const struct vport_parms *parms) | |
133 | { | |
134 | struct vport *vport; | |
135 | size_t alloc_size; | |
136 | ||
137 | alloc_size = sizeof(struct vport); | |
138 | if (priv_size) { | |
139 | alloc_size = ALIGN(alloc_size, VPORT_ALIGN); | |
140 | alloc_size += priv_size; | |
141 | } | |
142 | ||
143 | vport = kzalloc(alloc_size, GFP_KERNEL); | |
144 | if (!vport) | |
145 | return ERR_PTR(-ENOMEM); | |
146 | ||
147 | vport->dp = parms->dp; | |
148 | vport->port_no = parms->port_no; | |
ccb1352e | 149 | vport->ops = ops; |
15eac2a7 | 150 | INIT_HLIST_NODE(&vport->dp_hash_node); |
ccb1352e | 151 | |
3791b3f6 CJ |
152 | if (ovs_vport_set_upcall_portids(vport, parms->upcall_portids)) { |
153 | kfree(vport); | |
5cd667b0 | 154 | return ERR_PTR(-EINVAL); |
3791b3f6 | 155 | } |
5cd667b0 | 156 | |
ccb1352e JG |
157 | return vport; |
158 | } | |
9ba559d9 | 159 | EXPORT_SYMBOL_GPL(ovs_vport_alloc); |
ccb1352e JG |
160 | |
161 | /** | |
162 | * ovs_vport_free - uninitialize and free vport | |
163 | * | |
164 | * @vport: vport to free | |
165 | * | |
166 | * Frees a vport allocated with vport_alloc() when it is no longer needed. | |
167 | * | |
168 | * The caller must ensure that an RCU grace period has passed since the last | |
169 | * time @vport was in a datapath. | |
170 | */ | |
171 | void ovs_vport_free(struct vport *vport) | |
172 | { | |
5cd667b0 AW |
173 | /* vport is freed from RCU callback or error path, Therefore |
174 | * it is safe to use raw dereference. | |
175 | */ | |
176 | kfree(rcu_dereference_raw(vport->upcall_portids)); | |
ccb1352e JG |
177 | kfree(vport); |
178 | } | |
9ba559d9 | 179 | EXPORT_SYMBOL_GPL(ovs_vport_free); |
62b9c8d0 TG |
180 | |
181 | static struct vport_ops *ovs_vport_lookup(const struct vport_parms *parms) | |
182 | { | |
183 | struct vport_ops *ops; | |
184 | ||
185 | list_for_each_entry(ops, &vport_ops_list, list) | |
186 | if (ops->type == parms->type) | |
187 | return ops; | |
188 | ||
189 | return NULL; | |
190 | } | |
ccb1352e JG |
191 | |
192 | /** | |
193 | * ovs_vport_add - add vport device (for kernel callers) | |
194 | * | |
195 | * @parms: Information about new vport. | |
196 | * | |
197 | * Creates a new vport with the specified configuration (which is dependent on | |
8e4e1713 | 198 | * device type). ovs_mutex must be held. |
ccb1352e JG |
199 | */ |
200 | struct vport *ovs_vport_add(const struct vport_parms *parms) | |
201 | { | |
62b9c8d0 | 202 | struct vport_ops *ops; |
ccb1352e | 203 | struct vport *vport; |
ccb1352e | 204 | |
62b9c8d0 TG |
205 | ops = ovs_vport_lookup(parms); |
206 | if (ops) { | |
207 | struct hlist_head *bucket; | |
46df7b81 | 208 | |
62b9c8d0 TG |
209 | if (!try_module_get(ops->owner)) |
210 | return ERR_PTR(-EAFNOSUPPORT); | |
ccb1352e | 211 | |
62b9c8d0 TG |
212 | vport = ops->create(parms); |
213 | if (IS_ERR(vport)) { | |
214 | module_put(ops->owner); | |
ccb1352e JG |
215 | return vport; |
216 | } | |
62b9c8d0 TG |
217 | |
218 | bucket = hash_bucket(ovs_dp_get_net(vport->dp), | |
c9db965c | 219 | ovs_vport_name(vport)); |
62b9c8d0 TG |
220 | hlist_add_head_rcu(&vport->hash_node, bucket); |
221 | return vport; | |
ccb1352e JG |
222 | } |
223 | ||
62b9c8d0 TG |
224 | /* Unlock to attempt module load and return -EAGAIN if load |
225 | * was successful as we need to restart the port addition | |
226 | * workflow. | |
227 | */ | |
228 | ovs_unlock(); | |
229 | request_module("vport-type-%d", parms->type); | |
230 | ovs_lock(); | |
ccb1352e | 231 | |
62b9c8d0 TG |
232 | if (!ovs_vport_lookup(parms)) |
233 | return ERR_PTR(-EAFNOSUPPORT); | |
234 | else | |
235 | return ERR_PTR(-EAGAIN); | |
ccb1352e JG |
236 | } |
237 | ||
238 | /** | |
239 | * ovs_vport_set_options - modify existing vport device (for kernel callers) | |
240 | * | |
241 | * @vport: vport to modify. | |
2694838d | 242 | * @options: New configuration. |
ccb1352e JG |
243 | * |
244 | * Modifies an existing device with the specified configuration (which is | |
8e4e1713 | 245 | * dependent on device type). ovs_mutex must be held. |
ccb1352e JG |
246 | */ |
247 | int ovs_vport_set_options(struct vport *vport, struct nlattr *options) | |
248 | { | |
ccb1352e JG |
249 | if (!vport->ops->set_options) |
250 | return -EOPNOTSUPP; | |
251 | return vport->ops->set_options(vport, options); | |
252 | } | |
253 | ||
254 | /** | |
255 | * ovs_vport_del - delete existing vport device | |
256 | * | |
257 | * @vport: vport to delete. | |
258 | * | |
259 | * Detaches @vport from its datapath and destroys it. It is possible to fail | |
8e4e1713 | 260 | * for reasons such as lack of memory. ovs_mutex must be held. |
ccb1352e JG |
261 | */ |
262 | void ovs_vport_del(struct vport *vport) | |
263 | { | |
8e4e1713 | 264 | ASSERT_OVSL(); |
ccb1352e JG |
265 | |
266 | hlist_del_rcu(&vport->hash_node); | |
62b9c8d0 | 267 | module_put(vport->ops->owner); |
fa2d8ff4 | 268 | vport->ops->destroy(vport); |
ccb1352e JG |
269 | } |
270 | ||
271 | /** | |
272 | * ovs_vport_get_stats - retrieve device stats | |
273 | * | |
274 | * @vport: vport from which to retrieve the stats | |
275 | * @stats: location to store stats | |
276 | * | |
277 | * Retrieves transmit, receive, and error stats for the given device. | |
278 | * | |
8e4e1713 | 279 | * Must be called with ovs_mutex or rcu_read_lock. |
ccb1352e JG |
280 | */ |
281 | void ovs_vport_get_stats(struct vport *vport, struct ovs_vport_stats *stats) | |
282 | { | |
8c876639 | 283 | struct net_device *dev = vport->dev; |
ccb1352e JG |
284 | int i; |
285 | ||
286 | memset(stats, 0, sizeof(*stats)); | |
8c876639 PS |
287 | stats->rx_errors = dev->stats.rx_errors; |
288 | stats->tx_errors = dev->stats.tx_errors; | |
289 | stats->tx_dropped = dev->stats.tx_dropped; | |
290 | stats->rx_dropped = dev->stats.rx_dropped; | |
ccb1352e | 291 | |
8c876639 PS |
292 | stats->rx_dropped += atomic_long_read(&dev->rx_dropped); |
293 | stats->tx_dropped += atomic_long_read(&dev->tx_dropped); | |
ccb1352e JG |
294 | |
295 | for_each_possible_cpu(i) { | |
8f84985f LR |
296 | const struct pcpu_sw_netstats *percpu_stats; |
297 | struct pcpu_sw_netstats local_stats; | |
ccb1352e JG |
298 | unsigned int start; |
299 | ||
8c876639 | 300 | percpu_stats = per_cpu_ptr(dev->tstats, i); |
ccb1352e JG |
301 | |
302 | do { | |
57a7744e | 303 | start = u64_stats_fetch_begin_irq(&percpu_stats->syncp); |
ccb1352e | 304 | local_stats = *percpu_stats; |
57a7744e | 305 | } while (u64_stats_fetch_retry_irq(&percpu_stats->syncp, start)); |
ccb1352e JG |
306 | |
307 | stats->rx_bytes += local_stats.rx_bytes; | |
308 | stats->rx_packets += local_stats.rx_packets; | |
309 | stats->tx_bytes += local_stats.tx_bytes; | |
310 | stats->tx_packets += local_stats.tx_packets; | |
311 | } | |
312 | } | |
313 | ||
314 | /** | |
315 | * ovs_vport_get_options - retrieve device options | |
316 | * | |
317 | * @vport: vport from which to retrieve the options. | |
318 | * @skb: sk_buff where options should be appended. | |
319 | * | |
320 | * Retrieves the configuration of the given device, appending an | |
321 | * %OVS_VPORT_ATTR_OPTIONS attribute that in turn contains nested | |
322 | * vport-specific attributes to @skb. | |
323 | * | |
324 | * Returns 0 if successful, -EMSGSIZE if @skb has insufficient room, or another | |
325 | * negative error code if a real error occurred. If an error occurs, @skb is | |
326 | * left unmodified. | |
327 | * | |
8e4e1713 | 328 | * Must be called with ovs_mutex or rcu_read_lock. |
ccb1352e JG |
329 | */ |
330 | int ovs_vport_get_options(const struct vport *vport, struct sk_buff *skb) | |
331 | { | |
332 | struct nlattr *nla; | |
5d963352 TG |
333 | int err; |
334 | ||
335 | if (!vport->ops->get_options) | |
336 | return 0; | |
ccb1352e JG |
337 | |
338 | nla = nla_nest_start(skb, OVS_VPORT_ATTR_OPTIONS); | |
339 | if (!nla) | |
340 | return -EMSGSIZE; | |
341 | ||
5d963352 TG |
342 | err = vport->ops->get_options(vport, skb); |
343 | if (err) { | |
344 | nla_nest_cancel(skb, nla); | |
345 | return err; | |
ccb1352e JG |
346 | } |
347 | ||
348 | nla_nest_end(skb, nla); | |
349 | return 0; | |
350 | } | |
351 | ||
5cd667b0 AW |
352 | /** |
353 | * ovs_vport_set_upcall_portids - set upcall portids of @vport. | |
354 | * | |
355 | * @vport: vport to modify. | |
356 | * @ids: new configuration, an array of port ids. | |
357 | * | |
358 | * Sets the vport's upcall_portids to @ids. | |
359 | * | |
360 | * Returns 0 if successful, -EINVAL if @ids is zero length or cannot be parsed | |
361 | * as an array of U32. | |
362 | * | |
363 | * Must be called with ovs_mutex. | |
364 | */ | |
12eb18f7 | 365 | int ovs_vport_set_upcall_portids(struct vport *vport, const struct nlattr *ids) |
5cd667b0 AW |
366 | { |
367 | struct vport_portids *old, *vport_portids; | |
368 | ||
369 | if (!nla_len(ids) || nla_len(ids) % sizeof(u32)) | |
370 | return -EINVAL; | |
371 | ||
372 | old = ovsl_dereference(vport->upcall_portids); | |
373 | ||
374 | vport_portids = kmalloc(sizeof(*vport_portids) + nla_len(ids), | |
375 | GFP_KERNEL); | |
376 | if (!vport_portids) | |
377 | return -ENOMEM; | |
378 | ||
379 | vport_portids->n_ids = nla_len(ids) / sizeof(u32); | |
380 | vport_portids->rn_ids = reciprocal_value(vport_portids->n_ids); | |
381 | nla_memcpy(vport_portids->ids, ids, nla_len(ids)); | |
382 | ||
383 | rcu_assign_pointer(vport->upcall_portids, vport_portids); | |
384 | ||
385 | if (old) | |
386 | kfree_rcu(old, rcu); | |
387 | return 0; | |
388 | } | |
389 | ||
390 | /** | |
391 | * ovs_vport_get_upcall_portids - get the upcall_portids of @vport. | |
392 | * | |
393 | * @vport: vport from which to retrieve the portids. | |
394 | * @skb: sk_buff where portids should be appended. | |
395 | * | |
396 | * Retrieves the configuration of the given vport, appending the | |
397 | * %OVS_VPORT_ATTR_UPCALL_PID attribute which is the array of upcall | |
398 | * portids to @skb. | |
399 | * | |
400 | * Returns 0 if successful, -EMSGSIZE if @skb has insufficient room. | |
401 | * If an error occurs, @skb is left unmodified. Must be called with | |
402 | * ovs_mutex or rcu_read_lock. | |
403 | */ | |
404 | int ovs_vport_get_upcall_portids(const struct vport *vport, | |
405 | struct sk_buff *skb) | |
406 | { | |
407 | struct vport_portids *ids; | |
408 | ||
409 | ids = rcu_dereference_ovsl(vport->upcall_portids); | |
410 | ||
411 | if (vport->dp->user_features & OVS_DP_F_VPORT_PIDS) | |
412 | return nla_put(skb, OVS_VPORT_ATTR_UPCALL_PID, | |
413 | ids->n_ids * sizeof(u32), (void *)ids->ids); | |
414 | else | |
415 | return nla_put_u32(skb, OVS_VPORT_ATTR_UPCALL_PID, ids->ids[0]); | |
416 | } | |
417 | ||
418 | /** | |
419 | * ovs_vport_find_upcall_portid - find the upcall portid to send upcall. | |
420 | * | |
421 | * @vport: vport from which the missed packet is received. | |
422 | * @skb: skb that the missed packet was received. | |
423 | * | |
424 | * Uses the skb_get_hash() to select the upcall portid to send the | |
425 | * upcall. | |
426 | * | |
427 | * Returns the portid of the target socket. Must be called with rcu_read_lock. | |
428 | */ | |
4e8febd0 | 429 | u32 ovs_vport_find_upcall_portid(const struct vport *vport, struct sk_buff *skb) |
5cd667b0 AW |
430 | { |
431 | struct vport_portids *ids; | |
432 | u32 ids_index; | |
433 | u32 hash; | |
434 | ||
4e8febd0 | 435 | ids = rcu_dereference(vport->upcall_portids); |
5cd667b0 AW |
436 | |
437 | if (ids->n_ids == 1 && ids->ids[0] == 0) | |
438 | return 0; | |
439 | ||
440 | hash = skb_get_hash(skb); | |
441 | ids_index = hash - ids->n_ids * reciprocal_divide(hash, ids->rn_ids); | |
442 | return ids->ids[ids_index]; | |
443 | } | |
444 | ||
ccb1352e JG |
445 | /** |
446 | * ovs_vport_receive - pass up received packet to the datapath for processing | |
447 | * | |
448 | * @vport: vport that received the packet | |
449 | * @skb: skb that was received | |
2694838d | 450 | * @tun_key: tunnel (if any) that carried packet |
ccb1352e JG |
451 | * |
452 | * Must be called with rcu_read_lock. The packet cannot be shared and | |
d176ca2a | 453 | * skb->data should point to the Ethernet header. |
ccb1352e | 454 | */ |
8c876639 PS |
455 | int ovs_vport_receive(struct vport *vport, struct sk_buff *skb, |
456 | const struct ip_tunnel_info *tun_info) | |
ccb1352e | 457 | { |
8c8b1b83 PS |
458 | struct sw_flow_key key; |
459 | int error; | |
ccb1352e | 460 | |
83c8df26 | 461 | OVS_CB(skb)->input_vport = vport; |
7f8a436e | 462 | OVS_CB(skb)->mru = 0; |
8c8b1b83 | 463 | /* Extract flow from 'skb' into 'key'. */ |
f0b128c1 | 464 | error = ovs_flow_key_extract(tun_info, skb, &key); |
8c8b1b83 PS |
465 | if (unlikely(error)) { |
466 | kfree_skb(skb); | |
8c876639 | 467 | return error; |
8c8b1b83 PS |
468 | } |
469 | ovs_dp_process_packet(skb, &key); | |
8c876639 | 470 | return 0; |
ccb1352e | 471 | } |
9ba559d9 | 472 | EXPORT_SYMBOL_GPL(ovs_vport_receive); |
ccb1352e | 473 | |
aa310701 PS |
474 | static void free_vport_rcu(struct rcu_head *rcu) |
475 | { | |
476 | struct vport *vport = container_of(rcu, struct vport, rcu); | |
477 | ||
478 | ovs_vport_free(vport); | |
479 | } | |
480 | ||
481 | void ovs_vport_deferred_free(struct vport *vport) | |
482 | { | |
483 | if (!vport) | |
484 | return; | |
485 | ||
486 | call_rcu(&vport->rcu, free_vport_rcu); | |
487 | } | |
9ba559d9 | 488 | EXPORT_SYMBOL_GPL(ovs_vport_deferred_free); |
8f0aad6f | 489 | |
4c222798 | 490 | int ovs_tunnel_get_egress_info(struct dp_upcall_info *upcall, |
8f0aad6f | 491 | struct net *net, |
3eedb41f | 492 | struct sk_buff *skb, |
8f0aad6f | 493 | u8 ipproto, |
8f0aad6f WZ |
494 | __be16 tp_src, |
495 | __be16 tp_dst) | |
496 | { | |
4c222798 | 497 | struct ip_tunnel_info *egress_tun_info = upcall->egress_tun_info; |
3eedb41f | 498 | const struct ip_tunnel_info *tun_info = skb_tunnel_info(skb); |
1d8fff90 | 499 | const struct ip_tunnel_key *tun_key; |
3eedb41f | 500 | u32 skb_mark = skb->mark; |
8f0aad6f WZ |
501 | struct rtable *rt; |
502 | struct flowi4 fl; | |
503 | ||
504 | if (unlikely(!tun_info)) | |
505 | return -EINVAL; | |
7f9562a1 JB |
506 | if (ip_tunnel_info_af(tun_info) != AF_INET) |
507 | return -EINVAL; | |
8f0aad6f | 508 | |
1d8fff90 | 509 | tun_key = &tun_info->key; |
8f0aad6f WZ |
510 | |
511 | /* Route lookup to get srouce IP address. | |
512 | * The process may need to be changed if the corresponding process | |
513 | * in vports ops changed. | |
514 | */ | |
3f4c1d87 | 515 | rt = ovs_tunnel_route_lookup(net, tun_key, skb_mark, &fl, ipproto); |
8f0aad6f WZ |
516 | if (IS_ERR(rt)) |
517 | return PTR_ERR(rt); | |
518 | ||
519 | ip_rt_put(rt); | |
520 | ||
521 | /* Generate egress_tun_info based on tun_info, | |
522 | * saddr, tp_src and tp_dst | |
523 | */ | |
4c222798 PS |
524 | ip_tunnel_key_init(&egress_tun_info->key, |
525 | fl.saddr, tun_key->u.ipv4.dst, | |
526 | tun_key->tos, | |
527 | tun_key->ttl, | |
528 | tp_src, tp_dst, | |
529 | tun_key->tun_id, | |
530 | tun_key->tun_flags); | |
531 | egress_tun_info->options_len = tun_info->options_len; | |
532 | egress_tun_info->mode = tun_info->mode; | |
533 | upcall->egress_tun_opts = ip_tunnel_info_opts(egress_tun_info); | |
8f0aad6f WZ |
534 | return 0; |
535 | } | |
536 | EXPORT_SYMBOL_GPL(ovs_tunnel_get_egress_info); | |
537 | ||
538 | int ovs_vport_get_egress_tun_info(struct vport *vport, struct sk_buff *skb, | |
4c222798 | 539 | struct dp_upcall_info *upcall) |
8f0aad6f WZ |
540 | { |
541 | /* get_egress_tun_info() is only implemented on tunnel ports. */ | |
542 | if (unlikely(!vport->ops->get_egress_tun_info)) | |
543 | return -EINVAL; | |
544 | ||
4c222798 | 545 | return vport->ops->get_egress_tun_info(vport, skb, upcall); |
8f0aad6f | 546 | } |