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9952f691 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
ca9b0e27 AD |
2 | /* |
3 | * Copyright (c) 2008, Intel Corporation. | |
4 | * | |
ca9b0e27 AD |
5 | * Author: Alexander Duyck <alexander.h.duyck@intel.com> |
6 | */ | |
7 | ||
8 | #include <linux/module.h> | |
9 | #include <linux/init.h> | |
10 | #include <linux/kernel.h> | |
11 | #include <linux/skbuff.h> | |
12 | #include <linux/rtnetlink.h> | |
13 | #include <net/netlink.h> | |
14 | #include <net/pkt_sched.h> | |
e7e3728b QF |
15 | #include <net/ip.h> |
16 | #include <net/ipv6.h> | |
17 | #include <net/dsfield.h> | |
ec7727bb | 18 | #include <net/pkt_cls.h> |
ca9b0e27 AD |
19 | |
20 | #include <linux/tc_act/tc_skbedit.h> | |
21 | #include <net/tc_act/tc_skbedit.h> | |
22 | ||
c7d03a00 | 23 | static unsigned int skbedit_net_id; |
a85a970a | 24 | static struct tc_action_ops act_skbedit_ops; |
ddf97ccd | 25 | |
38a6f086 TZ |
26 | static u16 tcf_skbedit_hash(struct tcf_skbedit_params *params, |
27 | struct sk_buff *skb) | |
28 | { | |
29 | u16 queue_mapping = params->queue_mapping; | |
30 | ||
31 | if (params->flags & SKBEDIT_F_TXQ_SKBHASH) { | |
32 | u32 hash = skb_get_hash(skb); | |
33 | ||
34 | queue_mapping += hash % params->mapping_mod; | |
35 | } | |
36 | ||
37 | return netdev_cap_txqueue(skb->dev, queue_mapping); | |
38 | } | |
39 | ||
45da1dac JHS |
40 | static int tcf_skbedit_act(struct sk_buff *skb, const struct tc_action *a, |
41 | struct tcf_result *res) | |
ca9b0e27 | 42 | { |
a85a970a | 43 | struct tcf_skbedit *d = to_skbedit(a); |
c749cdda DC |
44 | struct tcf_skbedit_params *params; |
45 | int action; | |
ca9b0e27 | 46 | |
9c4a4e48 | 47 | tcf_lastuse_update(&d->tcf_tm); |
50dc9a85 | 48 | bstats_update(this_cpu_ptr(d->common.cpu_bstats), skb); |
ca9b0e27 | 49 | |
7fd4b288 | 50 | params = rcu_dereference_bh(d->params); |
c749cdda DC |
51 | action = READ_ONCE(d->tcf_action); |
52 | ||
53 | if (params->flags & SKBEDIT_F_PRIORITY) | |
54 | skb->priority = params->priority; | |
55 | if (params->flags & SKBEDIT_F_INHERITDSFIELD) { | |
e7e3728b QF |
56 | int wlen = skb_network_offset(skb); |
57 | ||
d7bf2ebe | 58 | switch (skb_protocol(skb, true)) { |
e7e3728b QF |
59 | case htons(ETH_P_IP): |
60 | wlen += sizeof(struct iphdr); | |
61 | if (!pskb_may_pull(skb, wlen)) | |
62 | goto err; | |
63 | skb->priority = ipv4_get_dsfield(ip_hdr(skb)) >> 2; | |
64 | break; | |
65 | ||
66 | case htons(ETH_P_IPV6): | |
67 | wlen += sizeof(struct ipv6hdr); | |
68 | if (!pskb_may_pull(skb, wlen)) | |
69 | goto err; | |
70 | skb->priority = ipv6_get_dsfield(ipv6_hdr(skb)) >> 2; | |
71 | break; | |
72 | } | |
73 | } | |
c749cdda | 74 | if (params->flags & SKBEDIT_F_QUEUE_MAPPING && |
2f1e85b1 TZ |
75 | skb->dev->real_num_tx_queues > params->queue_mapping) { |
76 | #ifdef CONFIG_NET_EGRESS | |
77 | netdev_xmit_skip_txqueue(true); | |
78 | #endif | |
38a6f086 | 79 | skb_set_queue_mapping(skb, tcf_skbedit_hash(params, skb)); |
2f1e85b1 | 80 | } |
c749cdda DC |
81 | if (params->flags & SKBEDIT_F_MARK) { |
82 | skb->mark &= ~params->mask; | |
83 | skb->mark |= params->mark & params->mask; | |
4fe77d82 | 84 | } |
c749cdda DC |
85 | if (params->flags & SKBEDIT_F_PTYPE) |
86 | skb->pkt_type = params->ptype; | |
c749cdda | 87 | return action; |
7fd4b288 | 88 | |
e7e3728b | 89 | err: |
6f3dfb0d | 90 | qstats_drop_inc(this_cpu_ptr(d->common.cpu_qstats)); |
7fd4b288 | 91 | return TC_ACT_SHOT; |
ca9b0e27 AD |
92 | } |
93 | ||
837cb17d | 94 | static void tcf_skbedit_stats_update(struct tc_action *a, u64 bytes, |
4b61d3e8 PL |
95 | u64 packets, u64 drops, |
96 | u64 lastuse, bool hw) | |
837cb17d PM |
97 | { |
98 | struct tcf_skbedit *d = to_skbedit(a); | |
99 | struct tcf_t *tm = &d->tcf_tm; | |
100 | ||
4b61d3e8 | 101 | tcf_action_update_stats(a, bytes, packets, drops, hw); |
837cb17d PM |
102 | tm->lastuse = max_t(u64, tm->lastuse, lastuse); |
103 | } | |
104 | ||
ca9b0e27 AD |
105 | static const struct nla_policy skbedit_policy[TCA_SKBEDIT_MAX + 1] = { |
106 | [TCA_SKBEDIT_PARMS] = { .len = sizeof(struct tc_skbedit) }, | |
107 | [TCA_SKBEDIT_PRIORITY] = { .len = sizeof(u32) }, | |
108 | [TCA_SKBEDIT_QUEUE_MAPPING] = { .len = sizeof(u16) }, | |
1c55d62e | 109 | [TCA_SKBEDIT_MARK] = { .len = sizeof(u32) }, |
ff202ee1 | 110 | [TCA_SKBEDIT_PTYPE] = { .len = sizeof(u16) }, |
4fe77d82 | 111 | [TCA_SKBEDIT_MASK] = { .len = sizeof(u32) }, |
e7e3728b | 112 | [TCA_SKBEDIT_FLAGS] = { .len = sizeof(u64) }, |
38a6f086 | 113 | [TCA_SKBEDIT_QUEUE_MAPPING_MAX] = { .len = sizeof(u16) }, |
ca9b0e27 AD |
114 | }; |
115 | ||
c1b52739 | 116 | static int tcf_skbedit_init(struct net *net, struct nlattr *nla, |
a85a970a | 117 | struct nlattr *est, struct tc_action **a, |
abbb0d33 | 118 | struct tcf_proto *tp, u32 act_flags, |
789871bb | 119 | struct netlink_ext_ack *extack) |
ca9b0e27 | 120 | { |
ddf97ccd | 121 | struct tc_action_net *tn = net_generic(net, skbedit_net_id); |
695176bf | 122 | bool bind = act_flags & TCA_ACT_FLAGS_BIND; |
6d7a8df6 | 123 | struct tcf_skbedit_params *params_new; |
ca9b0e27 | 124 | struct nlattr *tb[TCA_SKBEDIT_MAX + 1]; |
ec7727bb | 125 | struct tcf_chain *goto_ch = NULL; |
ca9b0e27 AD |
126 | struct tc_skbedit *parm; |
127 | struct tcf_skbedit *d; | |
4fe77d82 | 128 | u32 flags = 0, *priority = NULL, *mark = NULL, *mask = NULL; |
ff202ee1 | 129 | u16 *queue_mapping = NULL, *ptype = NULL; |
38a6f086 | 130 | u16 mapping_mod = 1; |
b2313077 WC |
131 | bool exists = false; |
132 | int ret = 0, err; | |
7be8ef2c | 133 | u32 index; |
ca9b0e27 AD |
134 | |
135 | if (nla == NULL) | |
136 | return -EINVAL; | |
137 | ||
8cb08174 JB |
138 | err = nla_parse_nested_deprecated(tb, TCA_SKBEDIT_MAX, nla, |
139 | skbedit_policy, NULL); | |
ca9b0e27 AD |
140 | if (err < 0) |
141 | return err; | |
142 | ||
143 | if (tb[TCA_SKBEDIT_PARMS] == NULL) | |
144 | return -EINVAL; | |
145 | ||
146 | if (tb[TCA_SKBEDIT_PRIORITY] != NULL) { | |
147 | flags |= SKBEDIT_F_PRIORITY; | |
148 | priority = nla_data(tb[TCA_SKBEDIT_PRIORITY]); | |
149 | } | |
150 | ||
151 | if (tb[TCA_SKBEDIT_QUEUE_MAPPING] != NULL) { | |
152 | flags |= SKBEDIT_F_QUEUE_MAPPING; | |
153 | queue_mapping = nla_data(tb[TCA_SKBEDIT_QUEUE_MAPPING]); | |
154 | } | |
1c55d62e | 155 | |
ff202ee1 JHS |
156 | if (tb[TCA_SKBEDIT_PTYPE] != NULL) { |
157 | ptype = nla_data(tb[TCA_SKBEDIT_PTYPE]); | |
158 | if (!skb_pkt_type_ok(*ptype)) | |
159 | return -EINVAL; | |
160 | flags |= SKBEDIT_F_PTYPE; | |
161 | } | |
162 | ||
1c55d62e | 163 | if (tb[TCA_SKBEDIT_MARK] != NULL) { |
164 | flags |= SKBEDIT_F_MARK; | |
165 | mark = nla_data(tb[TCA_SKBEDIT_MARK]); | |
166 | } | |
167 | ||
4fe77d82 AQ |
168 | if (tb[TCA_SKBEDIT_MASK] != NULL) { |
169 | flags |= SKBEDIT_F_MASK; | |
170 | mask = nla_data(tb[TCA_SKBEDIT_MASK]); | |
171 | } | |
172 | ||
e7e3728b QF |
173 | if (tb[TCA_SKBEDIT_FLAGS] != NULL) { |
174 | u64 *pure_flags = nla_data(tb[TCA_SKBEDIT_FLAGS]); | |
175 | ||
38a6f086 TZ |
176 | if (*pure_flags & SKBEDIT_F_TXQ_SKBHASH) { |
177 | u16 *queue_mapping_max; | |
178 | ||
179 | if (!tb[TCA_SKBEDIT_QUEUE_MAPPING] || | |
180 | !tb[TCA_SKBEDIT_QUEUE_MAPPING_MAX]) { | |
181 | NL_SET_ERR_MSG_MOD(extack, "Missing required range of queue_mapping."); | |
182 | return -EINVAL; | |
183 | } | |
184 | ||
185 | queue_mapping_max = | |
186 | nla_data(tb[TCA_SKBEDIT_QUEUE_MAPPING_MAX]); | |
187 | if (*queue_mapping_max < *queue_mapping) { | |
188 | NL_SET_ERR_MSG_MOD(extack, "The range of queue_mapping is invalid, max < min."); | |
189 | return -EINVAL; | |
190 | } | |
191 | ||
192 | mapping_mod = *queue_mapping_max - *queue_mapping + 1; | |
193 | flags |= SKBEDIT_F_TXQ_SKBHASH; | |
194 | } | |
e7e3728b QF |
195 | if (*pure_flags & SKBEDIT_F_INHERITDSFIELD) |
196 | flags |= SKBEDIT_F_INHERITDSFIELD; | |
197 | } | |
198 | ||
ca9b0e27 | 199 | parm = nla_data(tb[TCA_SKBEDIT_PARMS]); |
7be8ef2c DL |
200 | index = parm->index; |
201 | err = tcf_idr_check_alloc(tn, &index, a, bind); | |
0190c1d4 VB |
202 | if (err < 0) |
203 | return err; | |
204 | exists = err; | |
5e1567ae JHS |
205 | if (exists && bind) |
206 | return 0; | |
207 | ||
208 | if (!flags) { | |
af5d0184 RM |
209 | if (exists) |
210 | tcf_idr_release(*a, bind); | |
0190c1d4 | 211 | else |
7be8ef2c | 212 | tcf_idr_cleanup(tn, index); |
5e1567ae JHS |
213 | return -EINVAL; |
214 | } | |
215 | ||
216 | if (!exists) { | |
7be8ef2c | 217 | ret = tcf_idr_create(tn, index, est, a, |
40bd094d | 218 | &act_skbedit_ops, bind, true, act_flags); |
0190c1d4 | 219 | if (ret) { |
7be8ef2c | 220 | tcf_idr_cleanup(tn, index); |
86062033 | 221 | return ret; |
0190c1d4 | 222 | } |
ca9b0e27 | 223 | |
a85a970a | 224 | d = to_skbedit(*a); |
ca9b0e27 AD |
225 | ret = ACT_P_CREATED; |
226 | } else { | |
a85a970a | 227 | d = to_skbedit(*a); |
695176bf | 228 | if (!(act_flags & TCA_ACT_FLAGS_REPLACE)) { |
4e8ddd7f | 229 | tcf_idr_release(*a, bind); |
ca9b0e27 | 230 | return -EEXIST; |
4e8ddd7f | 231 | } |
ca9b0e27 | 232 | } |
ec7727bb DC |
233 | err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack); |
234 | if (err < 0) | |
235 | goto release_idr; | |
ca9b0e27 | 236 | |
c749cdda DC |
237 | params_new = kzalloc(sizeof(*params_new), GFP_KERNEL); |
238 | if (unlikely(!params_new)) { | |
ec7727bb DC |
239 | err = -ENOMEM; |
240 | goto put_chain; | |
c749cdda DC |
241 | } |
242 | ||
243 | params_new->flags = flags; | |
ca9b0e27 | 244 | if (flags & SKBEDIT_F_PRIORITY) |
c749cdda | 245 | params_new->priority = *priority; |
38a6f086 | 246 | if (flags & SKBEDIT_F_QUEUE_MAPPING) { |
c749cdda | 247 | params_new->queue_mapping = *queue_mapping; |
38a6f086 TZ |
248 | params_new->mapping_mod = mapping_mod; |
249 | } | |
1c55d62e | 250 | if (flags & SKBEDIT_F_MARK) |
c749cdda | 251 | params_new->mark = *mark; |
ff202ee1 | 252 | if (flags & SKBEDIT_F_PTYPE) |
c749cdda | 253 | params_new->ptype = *ptype; |
4fe77d82 | 254 | /* default behaviour is to use all the bits */ |
c749cdda | 255 | params_new->mask = 0xffffffff; |
4fe77d82 | 256 | if (flags & SKBEDIT_F_MASK) |
c749cdda | 257 | params_new->mask = *mask; |
1c55d62e | 258 | |
6d7a8df6 | 259 | spin_lock_bh(&d->tcf_lock); |
ec7727bb | 260 | goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch); |
445d3749 PM |
261 | params_new = rcu_replace_pointer(d->params, params_new, |
262 | lockdep_is_held(&d->tcf_lock)); | |
6d7a8df6 VB |
263 | spin_unlock_bh(&d->tcf_lock); |
264 | if (params_new) | |
265 | kfree_rcu(params_new, rcu); | |
ec7727bb DC |
266 | if (goto_ch) |
267 | tcf_chain_put_by_act(goto_ch); | |
ca9b0e27 | 268 | |
ca9b0e27 | 269 | return ret; |
ec7727bb DC |
270 | put_chain: |
271 | if (goto_ch) | |
272 | tcf_chain_put_by_act(goto_ch); | |
273 | release_idr: | |
274 | tcf_idr_release(*a, bind); | |
275 | return err; | |
ca9b0e27 AD |
276 | } |
277 | ||
cc7ec456 ED |
278 | static int tcf_skbedit_dump(struct sk_buff *skb, struct tc_action *a, |
279 | int bind, int ref) | |
ca9b0e27 AD |
280 | { |
281 | unsigned char *b = skb_tail_pointer(skb); | |
a85a970a | 282 | struct tcf_skbedit *d = to_skbedit(a); |
c749cdda | 283 | struct tcf_skbedit_params *params; |
1c40be12 ED |
284 | struct tc_skbedit opt = { |
285 | .index = d->tcf_index, | |
036bb443 VB |
286 | .refcnt = refcount_read(&d->tcf_refcnt) - ref, |
287 | .bindcnt = atomic_read(&d->tcf_bindcnt) - bind, | |
1c40be12 | 288 | }; |
e7e3728b | 289 | u64 pure_flags = 0; |
c749cdda DC |
290 | struct tcf_t t; |
291 | ||
6d7a8df6 VB |
292 | spin_lock_bh(&d->tcf_lock); |
293 | params = rcu_dereference_protected(d->params, | |
294 | lockdep_is_held(&d->tcf_lock)); | |
295 | opt.action = d->tcf_action; | |
ca9b0e27 | 296 | |
1b34ec43 DM |
297 | if (nla_put(skb, TCA_SKBEDIT_PARMS, sizeof(opt), &opt)) |
298 | goto nla_put_failure; | |
c749cdda DC |
299 | if ((params->flags & SKBEDIT_F_PRIORITY) && |
300 | nla_put_u32(skb, TCA_SKBEDIT_PRIORITY, params->priority)) | |
1b34ec43 | 301 | goto nla_put_failure; |
c749cdda DC |
302 | if ((params->flags & SKBEDIT_F_QUEUE_MAPPING) && |
303 | nla_put_u16(skb, TCA_SKBEDIT_QUEUE_MAPPING, params->queue_mapping)) | |
1b34ec43 | 304 | goto nla_put_failure; |
c749cdda DC |
305 | if ((params->flags & SKBEDIT_F_MARK) && |
306 | nla_put_u32(skb, TCA_SKBEDIT_MARK, params->mark)) | |
1b34ec43 | 307 | goto nla_put_failure; |
c749cdda DC |
308 | if ((params->flags & SKBEDIT_F_PTYPE) && |
309 | nla_put_u16(skb, TCA_SKBEDIT_PTYPE, params->ptype)) | |
ff202ee1 | 310 | goto nla_put_failure; |
c749cdda DC |
311 | if ((params->flags & SKBEDIT_F_MASK) && |
312 | nla_put_u32(skb, TCA_SKBEDIT_MASK, params->mask)) | |
4fe77d82 | 313 | goto nla_put_failure; |
c749cdda | 314 | if (params->flags & SKBEDIT_F_INHERITDSFIELD) |
e7e3728b | 315 | pure_flags |= SKBEDIT_F_INHERITDSFIELD; |
38a6f086 TZ |
316 | if (params->flags & SKBEDIT_F_TXQ_SKBHASH) { |
317 | if (nla_put_u16(skb, TCA_SKBEDIT_QUEUE_MAPPING_MAX, | |
318 | params->queue_mapping + params->mapping_mod - 1)) | |
319 | goto nla_put_failure; | |
320 | ||
321 | pure_flags |= SKBEDIT_F_TXQ_SKBHASH; | |
322 | } | |
e7e3728b QF |
323 | if (pure_flags != 0 && |
324 | nla_put(skb, TCA_SKBEDIT_FLAGS, sizeof(pure_flags), &pure_flags)) | |
325 | goto nla_put_failure; | |
48d8ee16 JHS |
326 | |
327 | tcf_tm_dump(&t, &d->tcf_tm); | |
9854518e | 328 | if (nla_put_64bit(skb, TCA_SKBEDIT_TM, sizeof(t), &t, TCA_SKBEDIT_PAD)) |
1b34ec43 | 329 | goto nla_put_failure; |
6d7a8df6 VB |
330 | spin_unlock_bh(&d->tcf_lock); |
331 | ||
ca9b0e27 AD |
332 | return skb->len; |
333 | ||
334 | nla_put_failure: | |
6d7a8df6 | 335 | spin_unlock_bh(&d->tcf_lock); |
ca9b0e27 AD |
336 | nlmsg_trim(skb, b); |
337 | return -1; | |
338 | } | |
339 | ||
c749cdda DC |
340 | static void tcf_skbedit_cleanup(struct tc_action *a) |
341 | { | |
342 | struct tcf_skbedit *d = to_skbedit(a); | |
343 | struct tcf_skbedit_params *params; | |
344 | ||
345 | params = rcu_dereference_protected(d->params, 1); | |
346 | if (params) | |
347 | kfree_rcu(params, rcu); | |
348 | } | |
349 | ||
ddf97ccd WC |
350 | static int tcf_skbedit_walker(struct net *net, struct sk_buff *skb, |
351 | struct netlink_callback *cb, int type, | |
41780105 AA |
352 | const struct tc_action_ops *ops, |
353 | struct netlink_ext_ack *extack) | |
ddf97ccd WC |
354 | { |
355 | struct tc_action_net *tn = net_generic(net, skbedit_net_id); | |
356 | ||
b3620145 | 357 | return tcf_generic_walker(tn, skb, cb, type, ops, extack); |
ddf97ccd WC |
358 | } |
359 | ||
f061b48c | 360 | static int tcf_skbedit_search(struct net *net, struct tc_action **a, u32 index) |
ddf97ccd WC |
361 | { |
362 | struct tc_action_net *tn = net_generic(net, skbedit_net_id); | |
363 | ||
65a206c0 | 364 | return tcf_idr_search(tn, a, index); |
ddf97ccd WC |
365 | } |
366 | ||
e1fea322 RM |
367 | static size_t tcf_skbedit_get_fill_size(const struct tc_action *act) |
368 | { | |
369 | return nla_total_size(sizeof(struct tc_skbedit)) | |
370 | + nla_total_size(sizeof(u32)) /* TCA_SKBEDIT_PRIORITY */ | |
371 | + nla_total_size(sizeof(u16)) /* TCA_SKBEDIT_QUEUE_MAPPING */ | |
38a6f086 | 372 | + nla_total_size(sizeof(u16)) /* TCA_SKBEDIT_QUEUE_MAPPING_MAX */ |
e1fea322 RM |
373 | + nla_total_size(sizeof(u32)) /* TCA_SKBEDIT_MARK */ |
374 | + nla_total_size(sizeof(u16)) /* TCA_SKBEDIT_PTYPE */ | |
375 | + nla_total_size(sizeof(u32)) /* TCA_SKBEDIT_MASK */ | |
376 | + nla_total_size_64bit(sizeof(u64)); /* TCA_SKBEDIT_FLAGS */ | |
377 | } | |
378 | ||
c54e1d92 | 379 | static int tcf_skbedit_offload_act_setup(struct tc_action *act, void *entry_data, |
c2ccf84e IS |
380 | u32 *index_inc, bool bind, |
381 | struct netlink_ext_ack *extack) | |
c54e1d92 BZ |
382 | { |
383 | if (bind) { | |
384 | struct flow_action_entry *entry = entry_data; | |
385 | ||
386 | if (is_tcf_skbedit_mark(act)) { | |
387 | entry->id = FLOW_ACTION_MARK; | |
388 | entry->mark = tcf_skbedit_mark(act); | |
389 | } else if (is_tcf_skbedit_ptype(act)) { | |
390 | entry->id = FLOW_ACTION_PTYPE; | |
391 | entry->ptype = tcf_skbedit_ptype(act); | |
392 | } else if (is_tcf_skbedit_priority(act)) { | |
393 | entry->id = FLOW_ACTION_PRIORITY; | |
394 | entry->priority = tcf_skbedit_priority(act); | |
a9c64939 IS |
395 | } else if (is_tcf_skbedit_queue_mapping(act)) { |
396 | NL_SET_ERR_MSG_MOD(extack, "Offload not supported when \"queue_mapping\" option is used"); | |
397 | return -EOPNOTSUPP; | |
398 | } else if (is_tcf_skbedit_inheritdsfield(act)) { | |
399 | NL_SET_ERR_MSG_MOD(extack, "Offload not supported when \"inheritdsfield\" option is used"); | |
400 | return -EOPNOTSUPP; | |
c54e1d92 | 401 | } else { |
a9c64939 | 402 | NL_SET_ERR_MSG_MOD(extack, "Unsupported skbedit option offload"); |
c54e1d92 BZ |
403 | return -EOPNOTSUPP; |
404 | } | |
405 | *index_inc = 1; | |
406 | } else { | |
8cbfe939 BZ |
407 | struct flow_offload_action *fl_action = entry_data; |
408 | ||
409 | if (is_tcf_skbedit_mark(act)) | |
410 | fl_action->id = FLOW_ACTION_MARK; | |
411 | else if (is_tcf_skbedit_ptype(act)) | |
412 | fl_action->id = FLOW_ACTION_PTYPE; | |
413 | else if (is_tcf_skbedit_priority(act)) | |
414 | fl_action->id = FLOW_ACTION_PRIORITY; | |
415 | else | |
416 | return -EOPNOTSUPP; | |
c54e1d92 BZ |
417 | } |
418 | ||
419 | return 0; | |
420 | } | |
421 | ||
ca9b0e27 AD |
422 | static struct tc_action_ops act_skbedit_ops = { |
423 | .kind = "skbedit", | |
eddd2cf1 | 424 | .id = TCA_ID_SKBEDIT, |
ca9b0e27 | 425 | .owner = THIS_MODULE, |
45da1dac | 426 | .act = tcf_skbedit_act, |
837cb17d | 427 | .stats_update = tcf_skbedit_stats_update, |
ca9b0e27 | 428 | .dump = tcf_skbedit_dump, |
ca9b0e27 | 429 | .init = tcf_skbedit_init, |
c749cdda | 430 | .cleanup = tcf_skbedit_cleanup, |
ddf97ccd | 431 | .walk = tcf_skbedit_walker, |
e1fea322 | 432 | .get_fill_size = tcf_skbedit_get_fill_size, |
ddf97ccd | 433 | .lookup = tcf_skbedit_search, |
c54e1d92 | 434 | .offload_act_setup = tcf_skbedit_offload_act_setup, |
a85a970a | 435 | .size = sizeof(struct tcf_skbedit), |
ddf97ccd WC |
436 | }; |
437 | ||
438 | static __net_init int skbedit_init_net(struct net *net) | |
439 | { | |
440 | struct tc_action_net *tn = net_generic(net, skbedit_net_id); | |
441 | ||
981471bd | 442 | return tc_action_net_init(net, tn, &act_skbedit_ops); |
ddf97ccd WC |
443 | } |
444 | ||
039af9c6 | 445 | static void __net_exit skbedit_exit_net(struct list_head *net_list) |
ddf97ccd | 446 | { |
039af9c6 | 447 | tc_action_net_exit(net_list, skbedit_net_id); |
ddf97ccd WC |
448 | } |
449 | ||
450 | static struct pernet_operations skbedit_net_ops = { | |
451 | .init = skbedit_init_net, | |
039af9c6 | 452 | .exit_batch = skbedit_exit_net, |
ddf97ccd WC |
453 | .id = &skbedit_net_id, |
454 | .size = sizeof(struct tc_action_net), | |
ca9b0e27 AD |
455 | }; |
456 | ||
457 | MODULE_AUTHOR("Alexander Duyck, <alexander.h.duyck@intel.com>"); | |
458 | MODULE_DESCRIPTION("SKB Editing"); | |
459 | MODULE_LICENSE("GPL"); | |
460 | ||
461 | static int __init skbedit_init_module(void) | |
462 | { | |
ddf97ccd | 463 | return tcf_register_action(&act_skbedit_ops, &skbedit_net_ops); |
ca9b0e27 AD |
464 | } |
465 | ||
466 | static void __exit skbedit_cleanup_module(void) | |
467 | { | |
ddf97ccd | 468 | tcf_unregister_action(&act_skbedit_ops, &skbedit_net_ops); |
ca9b0e27 AD |
469 | } |
470 | ||
471 | module_init(skbedit_init_module); | |
472 | module_exit(skbedit_cleanup_module); |