1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * net/sched/cls_flower.c Flower classifier
5 * Copyright (c) 2015 Jiri Pirko <jiri@resnulli.us>
8 #include <linux/kernel.h>
9 #include <linux/init.h>
10 #include <linux/module.h>
11 #include <linux/rhashtable.h>
12 #include <linux/workqueue.h>
13 #include <linux/refcount.h>
15 #include <linux/if_ether.h>
16 #include <linux/in6.h>
18 #include <linux/mpls.h>
20 #include <net/sch_generic.h>
21 #include <net/pkt_cls.h>
22 #include <net/pkt_sched.h>
24 #include <net/flow_dissector.h>
25 #include <net/geneve.h>
26 #include <net/vxlan.h>
27 #include <net/erspan.h>
30 #include <net/dst_metadata.h>
32 #include <uapi/linux/netfilter/nf_conntrack_common.h>
34 #define TCA_FLOWER_KEY_CT_FLAGS_MAX \
35 ((__TCA_FLOWER_KEY_CT_FLAGS_MAX - 1) << 1)
36 #define TCA_FLOWER_KEY_CT_FLAGS_MASK \
37 (TCA_FLOWER_KEY_CT_FLAGS_MAX - 1)
40 struct flow_dissector_key_meta meta;
41 struct flow_dissector_key_control control;
42 struct flow_dissector_key_control enc_control;
43 struct flow_dissector_key_basic basic;
44 struct flow_dissector_key_eth_addrs eth;
45 struct flow_dissector_key_vlan vlan;
46 struct flow_dissector_key_vlan cvlan;
48 struct flow_dissector_key_ipv4_addrs ipv4;
49 struct flow_dissector_key_ipv6_addrs ipv6;
51 struct flow_dissector_key_ports tp;
52 struct flow_dissector_key_icmp icmp;
53 struct flow_dissector_key_arp arp;
54 struct flow_dissector_key_keyid enc_key_id;
56 struct flow_dissector_key_ipv4_addrs enc_ipv4;
57 struct flow_dissector_key_ipv6_addrs enc_ipv6;
59 struct flow_dissector_key_ports enc_tp;
60 struct flow_dissector_key_mpls mpls;
61 struct flow_dissector_key_tcp tcp;
62 struct flow_dissector_key_ip ip;
63 struct flow_dissector_key_ip enc_ip;
64 struct flow_dissector_key_enc_opts enc_opts;
66 struct flow_dissector_key_ports tp;
68 struct flow_dissector_key_ports tp_min;
69 struct flow_dissector_key_ports tp_max;
72 struct flow_dissector_key_ct ct;
73 struct flow_dissector_key_hash hash;
74 } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
76 struct fl_flow_mask_range {
77 unsigned short int start;
78 unsigned short int end;
82 struct fl_flow_key key;
83 struct fl_flow_mask_range range;
85 struct rhash_head ht_node;
87 struct rhashtable_params filter_ht_params;
88 struct flow_dissector dissector;
89 struct list_head filters;
90 struct rcu_work rwork;
91 struct list_head list;
95 struct fl_flow_tmplt {
96 struct fl_flow_key dummy_key;
97 struct fl_flow_key mask;
98 struct flow_dissector dissector;
99 struct tcf_chain *chain;
103 struct rhashtable ht;
104 spinlock_t masks_lock; /* Protect masks list */
105 struct list_head masks;
106 struct list_head hw_filters;
107 struct rcu_work rwork;
108 struct idr handle_idr;
111 struct cls_fl_filter {
112 struct fl_flow_mask *mask;
113 struct rhash_head ht_node;
114 struct fl_flow_key mkey;
115 struct tcf_exts exts;
116 struct tcf_result res;
117 struct fl_flow_key key;
118 struct list_head list;
119 struct list_head hw_list;
123 struct rcu_work rwork;
124 struct net_device *hw_dev;
125 /* Flower classifier is unlocked, which means that its reference counter
126 * can be changed concurrently without any kind of external
127 * synchronization. Use atomic reference counter to be concurrency-safe.
133 static const struct rhashtable_params mask_ht_params = {
134 .key_offset = offsetof(struct fl_flow_mask, key),
135 .key_len = sizeof(struct fl_flow_key),
136 .head_offset = offsetof(struct fl_flow_mask, ht_node),
137 .automatic_shrinking = true,
140 static unsigned short int fl_mask_range(const struct fl_flow_mask *mask)
142 return mask->range.end - mask->range.start;
145 static void fl_mask_update_range(struct fl_flow_mask *mask)
147 const u8 *bytes = (const u8 *) &mask->key;
148 size_t size = sizeof(mask->key);
149 size_t i, first = 0, last;
151 for (i = 0; i < size; i++) {
158 for (i = size - 1; i != first; i--) {
164 mask->range.start = rounddown(first, sizeof(long));
165 mask->range.end = roundup(last + 1, sizeof(long));
168 static void *fl_key_get_start(struct fl_flow_key *key,
169 const struct fl_flow_mask *mask)
171 return (u8 *) key + mask->range.start;
174 static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key,
175 struct fl_flow_mask *mask)
177 const long *lkey = fl_key_get_start(key, mask);
178 const long *lmask = fl_key_get_start(&mask->key, mask);
179 long *lmkey = fl_key_get_start(mkey, mask);
182 for (i = 0; i < fl_mask_range(mask); i += sizeof(long))
183 *lmkey++ = *lkey++ & *lmask++;
186 static bool fl_mask_fits_tmplt(struct fl_flow_tmplt *tmplt,
187 struct fl_flow_mask *mask)
189 const long *lmask = fl_key_get_start(&mask->key, mask);
195 ltmplt = fl_key_get_start(&tmplt->mask, mask);
196 for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) {
197 if (~*ltmplt++ & *lmask++)
203 static void fl_clear_masked_range(struct fl_flow_key *key,
204 struct fl_flow_mask *mask)
206 memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask));
209 static bool fl_range_port_dst_cmp(struct cls_fl_filter *filter,
210 struct fl_flow_key *key,
211 struct fl_flow_key *mkey)
213 u16 min_mask, max_mask, min_val, max_val;
215 min_mask = ntohs(filter->mask->key.tp_range.tp_min.dst);
216 max_mask = ntohs(filter->mask->key.tp_range.tp_max.dst);
217 min_val = ntohs(filter->key.tp_range.tp_min.dst);
218 max_val = ntohs(filter->key.tp_range.tp_max.dst);
220 if (min_mask && max_mask) {
221 if (ntohs(key->tp_range.tp.dst) < min_val ||
222 ntohs(key->tp_range.tp.dst) > max_val)
225 /* skb does not have min and max values */
226 mkey->tp_range.tp_min.dst = filter->mkey.tp_range.tp_min.dst;
227 mkey->tp_range.tp_max.dst = filter->mkey.tp_range.tp_max.dst;
232 static bool fl_range_port_src_cmp(struct cls_fl_filter *filter,
233 struct fl_flow_key *key,
234 struct fl_flow_key *mkey)
236 u16 min_mask, max_mask, min_val, max_val;
238 min_mask = ntohs(filter->mask->key.tp_range.tp_min.src);
239 max_mask = ntohs(filter->mask->key.tp_range.tp_max.src);
240 min_val = ntohs(filter->key.tp_range.tp_min.src);
241 max_val = ntohs(filter->key.tp_range.tp_max.src);
243 if (min_mask && max_mask) {
244 if (ntohs(key->tp_range.tp.src) < min_val ||
245 ntohs(key->tp_range.tp.src) > max_val)
248 /* skb does not have min and max values */
249 mkey->tp_range.tp_min.src = filter->mkey.tp_range.tp_min.src;
250 mkey->tp_range.tp_max.src = filter->mkey.tp_range.tp_max.src;
255 static struct cls_fl_filter *__fl_lookup(struct fl_flow_mask *mask,
256 struct fl_flow_key *mkey)
258 return rhashtable_lookup_fast(&mask->ht, fl_key_get_start(mkey, mask),
259 mask->filter_ht_params);
262 static struct cls_fl_filter *fl_lookup_range(struct fl_flow_mask *mask,
263 struct fl_flow_key *mkey,
264 struct fl_flow_key *key)
266 struct cls_fl_filter *filter, *f;
268 list_for_each_entry_rcu(filter, &mask->filters, list) {
269 if (!fl_range_port_dst_cmp(filter, key, mkey))
272 if (!fl_range_port_src_cmp(filter, key, mkey))
275 f = __fl_lookup(mask, mkey);
282 static noinline_for_stack
283 struct cls_fl_filter *fl_mask_lookup(struct fl_flow_mask *mask, struct fl_flow_key *key)
285 struct fl_flow_key mkey;
287 fl_set_masked_key(&mkey, key, mask);
288 if ((mask->flags & TCA_FLOWER_MASK_FLAGS_RANGE))
289 return fl_lookup_range(mask, &mkey, key);
291 return __fl_lookup(mask, &mkey);
294 static u16 fl_ct_info_to_flower_map[] = {
295 [IP_CT_ESTABLISHED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
296 TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED,
297 [IP_CT_RELATED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
298 TCA_FLOWER_KEY_CT_FLAGS_RELATED,
299 [IP_CT_ESTABLISHED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
300 TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED |
301 TCA_FLOWER_KEY_CT_FLAGS_REPLY,
302 [IP_CT_RELATED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
303 TCA_FLOWER_KEY_CT_FLAGS_RELATED |
304 TCA_FLOWER_KEY_CT_FLAGS_REPLY,
305 [IP_CT_NEW] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
306 TCA_FLOWER_KEY_CT_FLAGS_NEW,
309 static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp,
310 struct tcf_result *res)
312 struct cls_fl_head *head = rcu_dereference_bh(tp->root);
313 bool post_ct = tc_skb_cb(skb)->post_ct;
314 u16 zone = tc_skb_cb(skb)->zone;
315 struct fl_flow_key skb_key;
316 struct fl_flow_mask *mask;
317 struct cls_fl_filter *f;
319 list_for_each_entry_rcu(mask, &head->masks, list) {
320 flow_dissector_init_keys(&skb_key.control, &skb_key.basic);
321 fl_clear_masked_range(&skb_key, mask);
323 skb_flow_dissect_meta(skb, &mask->dissector, &skb_key);
324 /* skb_flow_dissect() does not set n_proto in case an unknown
325 * protocol, so do it rather here.
327 skb_key.basic.n_proto = skb_protocol(skb, false);
328 skb_flow_dissect_tunnel_info(skb, &mask->dissector, &skb_key);
329 skb_flow_dissect_ct(skb, &mask->dissector, &skb_key,
330 fl_ct_info_to_flower_map,
331 ARRAY_SIZE(fl_ct_info_to_flower_map),
333 skb_flow_dissect_hash(skb, &mask->dissector, &skb_key);
334 skb_flow_dissect(skb, &mask->dissector, &skb_key, 0);
336 f = fl_mask_lookup(mask, &skb_key);
337 if (f && !tc_skip_sw(f->flags)) {
339 return tcf_exts_exec(skb, &f->exts, res);
345 static int fl_init(struct tcf_proto *tp)
347 struct cls_fl_head *head;
349 head = kzalloc(sizeof(*head), GFP_KERNEL);
353 spin_lock_init(&head->masks_lock);
354 INIT_LIST_HEAD_RCU(&head->masks);
355 INIT_LIST_HEAD(&head->hw_filters);
356 rcu_assign_pointer(tp->root, head);
357 idr_init(&head->handle_idr);
359 return rhashtable_init(&head->ht, &mask_ht_params);
362 static void fl_mask_free(struct fl_flow_mask *mask, bool mask_init_done)
364 /* temporary masks don't have their filters list and ht initialized */
365 if (mask_init_done) {
366 WARN_ON(!list_empty(&mask->filters));
367 rhashtable_destroy(&mask->ht);
372 static void fl_mask_free_work(struct work_struct *work)
374 struct fl_flow_mask *mask = container_of(to_rcu_work(work),
375 struct fl_flow_mask, rwork);
377 fl_mask_free(mask, true);
380 static void fl_uninit_mask_free_work(struct work_struct *work)
382 struct fl_flow_mask *mask = container_of(to_rcu_work(work),
383 struct fl_flow_mask, rwork);
385 fl_mask_free(mask, false);
388 static bool fl_mask_put(struct cls_fl_head *head, struct fl_flow_mask *mask)
390 if (!refcount_dec_and_test(&mask->refcnt))
393 rhashtable_remove_fast(&head->ht, &mask->ht_node, mask_ht_params);
395 spin_lock(&head->masks_lock);
396 list_del_rcu(&mask->list);
397 spin_unlock(&head->masks_lock);
399 tcf_queue_work(&mask->rwork, fl_mask_free_work);
404 static struct cls_fl_head *fl_head_dereference(struct tcf_proto *tp)
406 /* Flower classifier only changes root pointer during init and destroy.
407 * Users must obtain reference to tcf_proto instance before calling its
408 * API, so tp->root pointer is protected from concurrent call to
409 * fl_destroy() by reference counting.
411 return rcu_dereference_raw(tp->root);
414 static void __fl_destroy_filter(struct cls_fl_filter *f)
416 tcf_exts_destroy(&f->exts);
417 tcf_exts_put_net(&f->exts);
421 static void fl_destroy_filter_work(struct work_struct *work)
423 struct cls_fl_filter *f = container_of(to_rcu_work(work),
424 struct cls_fl_filter, rwork);
426 __fl_destroy_filter(f);
429 static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f,
430 bool rtnl_held, struct netlink_ext_ack *extack)
432 struct tcf_block *block = tp->chain->block;
433 struct flow_cls_offload cls_flower = {};
435 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
436 cls_flower.command = FLOW_CLS_DESTROY;
437 cls_flower.cookie = (unsigned long) f;
439 tc_setup_cb_destroy(block, tp, TC_SETUP_CLSFLOWER, &cls_flower, false,
440 &f->flags, &f->in_hw_count, rtnl_held);
444 static int fl_hw_replace_filter(struct tcf_proto *tp,
445 struct cls_fl_filter *f, bool rtnl_held,
446 struct netlink_ext_ack *extack)
448 struct tcf_block *block = tp->chain->block;
449 struct flow_cls_offload cls_flower = {};
450 bool skip_sw = tc_skip_sw(f->flags);
453 cls_flower.rule = flow_rule_alloc(tcf_exts_num_actions(&f->exts));
454 if (!cls_flower.rule)
457 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
458 cls_flower.command = FLOW_CLS_REPLACE;
459 cls_flower.cookie = (unsigned long) f;
460 cls_flower.rule->match.dissector = &f->mask->dissector;
461 cls_flower.rule->match.mask = &f->mask->key;
462 cls_flower.rule->match.key = &f->mkey;
463 cls_flower.classid = f->res.classid;
465 err = tc_setup_flow_action(&cls_flower.rule->action, &f->exts);
467 kfree(cls_flower.rule);
469 NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action");
475 err = tc_setup_cb_add(block, tp, TC_SETUP_CLSFLOWER, &cls_flower,
476 skip_sw, &f->flags, &f->in_hw_count, rtnl_held);
477 tc_cleanup_flow_action(&cls_flower.rule->action);
478 kfree(cls_flower.rule);
481 fl_hw_destroy_filter(tp, f, rtnl_held, NULL);
485 if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW))
491 static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f,
494 struct tcf_block *block = tp->chain->block;
495 struct flow_cls_offload cls_flower = {};
497 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, NULL);
498 cls_flower.command = FLOW_CLS_STATS;
499 cls_flower.cookie = (unsigned long) f;
500 cls_flower.classid = f->res.classid;
502 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false,
505 tcf_exts_stats_update(&f->exts, cls_flower.stats.bytes,
506 cls_flower.stats.pkts,
507 cls_flower.stats.drops,
508 cls_flower.stats.lastused,
509 cls_flower.stats.used_hw_stats,
510 cls_flower.stats.used_hw_stats_valid);
513 static void __fl_put(struct cls_fl_filter *f)
515 if (!refcount_dec_and_test(&f->refcnt))
518 if (tcf_exts_get_net(&f->exts))
519 tcf_queue_work(&f->rwork, fl_destroy_filter_work);
521 __fl_destroy_filter(f);
524 static struct cls_fl_filter *__fl_get(struct cls_fl_head *head, u32 handle)
526 struct cls_fl_filter *f;
529 f = idr_find(&head->handle_idr, handle);
530 if (f && !refcount_inc_not_zero(&f->refcnt))
537 static int __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f,
538 bool *last, bool rtnl_held,
539 struct netlink_ext_ack *extack)
541 struct cls_fl_head *head = fl_head_dereference(tp);
545 spin_lock(&tp->lock);
547 spin_unlock(&tp->lock);
552 rhashtable_remove_fast(&f->mask->ht, &f->ht_node,
553 f->mask->filter_ht_params);
554 idr_remove(&head->handle_idr, f->handle);
555 list_del_rcu(&f->list);
556 spin_unlock(&tp->lock);
558 *last = fl_mask_put(head, f->mask);
559 if (!tc_skip_hw(f->flags))
560 fl_hw_destroy_filter(tp, f, rtnl_held, extack);
561 tcf_unbind_filter(tp, &f->res);
567 static void fl_destroy_sleepable(struct work_struct *work)
569 struct cls_fl_head *head = container_of(to_rcu_work(work),
573 rhashtable_destroy(&head->ht);
575 module_put(THIS_MODULE);
578 static void fl_destroy(struct tcf_proto *tp, bool rtnl_held,
579 struct netlink_ext_ack *extack)
581 struct cls_fl_head *head = fl_head_dereference(tp);
582 struct fl_flow_mask *mask, *next_mask;
583 struct cls_fl_filter *f, *next;
586 list_for_each_entry_safe(mask, next_mask, &head->masks, list) {
587 list_for_each_entry_safe(f, next, &mask->filters, list) {
588 __fl_delete(tp, f, &last, rtnl_held, extack);
593 idr_destroy(&head->handle_idr);
595 __module_get(THIS_MODULE);
596 tcf_queue_work(&head->rwork, fl_destroy_sleepable);
599 static void fl_put(struct tcf_proto *tp, void *arg)
601 struct cls_fl_filter *f = arg;
606 static void *fl_get(struct tcf_proto *tp, u32 handle)
608 struct cls_fl_head *head = fl_head_dereference(tp);
610 return __fl_get(head, handle);
613 static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
614 [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC },
615 [TCA_FLOWER_CLASSID] = { .type = NLA_U32 },
616 [TCA_FLOWER_INDEV] = { .type = NLA_STRING,
618 [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN },
619 [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN },
620 [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN },
621 [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN },
622 [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 },
623 [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 },
624 [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 },
625 [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 },
626 [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 },
627 [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 },
628 [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
629 [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
630 [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) },
631 [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
632 [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 },
633 [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 },
634 [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 },
635 [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 },
636 [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 },
637 [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 },
638 [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 },
639 [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 },
640 [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 },
641 [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 },
642 [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 },
643 [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 },
644 [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
645 [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
646 [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) },
647 [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
648 [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 },
649 [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 },
650 [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 },
651 [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 },
652 [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 },
653 [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 },
654 [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 },
655 [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 },
656 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 },
657 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 },
658 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 },
659 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 },
660 [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 },
661 [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 },
662 [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 },
663 [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 },
664 [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 },
665 [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 },
666 [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 },
667 [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 },
668 [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 },
669 [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 },
670 [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 },
671 [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 },
672 [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 },
673 [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 },
674 [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 },
675 [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 },
676 [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN },
677 [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN },
678 [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN },
679 [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN },
680 [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 },
681 [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 },
682 [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 },
683 [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 },
684 [TCA_FLOWER_KEY_MPLS_OPTS] = { .type = NLA_NESTED },
685 [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 },
686 [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 },
687 [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 },
688 [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 },
689 [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 },
690 [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 },
691 [TCA_FLOWER_KEY_CVLAN_ID] = { .type = NLA_U16 },
692 [TCA_FLOWER_KEY_CVLAN_PRIO] = { .type = NLA_U8 },
693 [TCA_FLOWER_KEY_CVLAN_ETH_TYPE] = { .type = NLA_U16 },
694 [TCA_FLOWER_KEY_ENC_IP_TOS] = { .type = NLA_U8 },
695 [TCA_FLOWER_KEY_ENC_IP_TOS_MASK] = { .type = NLA_U8 },
696 [TCA_FLOWER_KEY_ENC_IP_TTL] = { .type = NLA_U8 },
697 [TCA_FLOWER_KEY_ENC_IP_TTL_MASK] = { .type = NLA_U8 },
698 [TCA_FLOWER_KEY_ENC_OPTS] = { .type = NLA_NESTED },
699 [TCA_FLOWER_KEY_ENC_OPTS_MASK] = { .type = NLA_NESTED },
700 [TCA_FLOWER_KEY_CT_STATE] =
701 NLA_POLICY_MASK(NLA_U16, TCA_FLOWER_KEY_CT_FLAGS_MASK),
702 [TCA_FLOWER_KEY_CT_STATE_MASK] =
703 NLA_POLICY_MASK(NLA_U16, TCA_FLOWER_KEY_CT_FLAGS_MASK),
704 [TCA_FLOWER_KEY_CT_ZONE] = { .type = NLA_U16 },
705 [TCA_FLOWER_KEY_CT_ZONE_MASK] = { .type = NLA_U16 },
706 [TCA_FLOWER_KEY_CT_MARK] = { .type = NLA_U32 },
707 [TCA_FLOWER_KEY_CT_MARK_MASK] = { .type = NLA_U32 },
708 [TCA_FLOWER_KEY_CT_LABELS] = { .type = NLA_BINARY,
709 .len = 128 / BITS_PER_BYTE },
710 [TCA_FLOWER_KEY_CT_LABELS_MASK] = { .type = NLA_BINARY,
711 .len = 128 / BITS_PER_BYTE },
712 [TCA_FLOWER_FLAGS] = { .type = NLA_U32 },
713 [TCA_FLOWER_KEY_HASH] = { .type = NLA_U32 },
714 [TCA_FLOWER_KEY_HASH_MASK] = { .type = NLA_U32 },
718 static const struct nla_policy
719 enc_opts_policy[TCA_FLOWER_KEY_ENC_OPTS_MAX + 1] = {
720 [TCA_FLOWER_KEY_ENC_OPTS_UNSPEC] = {
721 .strict_start_type = TCA_FLOWER_KEY_ENC_OPTS_VXLAN },
722 [TCA_FLOWER_KEY_ENC_OPTS_GENEVE] = { .type = NLA_NESTED },
723 [TCA_FLOWER_KEY_ENC_OPTS_VXLAN] = { .type = NLA_NESTED },
724 [TCA_FLOWER_KEY_ENC_OPTS_ERSPAN] = { .type = NLA_NESTED },
727 static const struct nla_policy
728 geneve_opt_policy[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1] = {
729 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] = { .type = NLA_U16 },
730 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] = { .type = NLA_U8 },
731 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA] = { .type = NLA_BINARY,
735 static const struct nla_policy
736 vxlan_opt_policy[TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX + 1] = {
737 [TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP] = { .type = NLA_U32 },
740 static const struct nla_policy
741 erspan_opt_policy[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX + 1] = {
742 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER] = { .type = NLA_U8 },
743 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX] = { .type = NLA_U32 },
744 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR] = { .type = NLA_U8 },
745 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID] = { .type = NLA_U8 },
748 static const struct nla_policy
749 mpls_stack_entry_policy[TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX + 1] = {
750 [TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH] = { .type = NLA_U8 },
751 [TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL] = { .type = NLA_U8 },
752 [TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS] = { .type = NLA_U8 },
753 [TCA_FLOWER_KEY_MPLS_OPT_LSE_TC] = { .type = NLA_U8 },
754 [TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL] = { .type = NLA_U32 },
757 static void fl_set_key_val(struct nlattr **tb,
758 void *val, int val_type,
759 void *mask, int mask_type, int len)
763 nla_memcpy(val, tb[val_type], len);
764 if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type])
765 memset(mask, 0xff, len);
767 nla_memcpy(mask, tb[mask_type], len);
770 static int fl_set_key_port_range(struct nlattr **tb, struct fl_flow_key *key,
771 struct fl_flow_key *mask,
772 struct netlink_ext_ack *extack)
774 fl_set_key_val(tb, &key->tp_range.tp_min.dst,
775 TCA_FLOWER_KEY_PORT_DST_MIN, &mask->tp_range.tp_min.dst,
776 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_min.dst));
777 fl_set_key_val(tb, &key->tp_range.tp_max.dst,
778 TCA_FLOWER_KEY_PORT_DST_MAX, &mask->tp_range.tp_max.dst,
779 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_max.dst));
780 fl_set_key_val(tb, &key->tp_range.tp_min.src,
781 TCA_FLOWER_KEY_PORT_SRC_MIN, &mask->tp_range.tp_min.src,
782 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_min.src));
783 fl_set_key_val(tb, &key->tp_range.tp_max.src,
784 TCA_FLOWER_KEY_PORT_SRC_MAX, &mask->tp_range.tp_max.src,
785 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_max.src));
787 if (mask->tp_range.tp_min.dst && mask->tp_range.tp_max.dst &&
788 ntohs(key->tp_range.tp_max.dst) <=
789 ntohs(key->tp_range.tp_min.dst)) {
790 NL_SET_ERR_MSG_ATTR(extack,
791 tb[TCA_FLOWER_KEY_PORT_DST_MIN],
792 "Invalid destination port range (min must be strictly smaller than max)");
795 if (mask->tp_range.tp_min.src && mask->tp_range.tp_max.src &&
796 ntohs(key->tp_range.tp_max.src) <=
797 ntohs(key->tp_range.tp_min.src)) {
798 NL_SET_ERR_MSG_ATTR(extack,
799 tb[TCA_FLOWER_KEY_PORT_SRC_MIN],
800 "Invalid source port range (min must be strictly smaller than max)");
807 static int fl_set_key_mpls_lse(const struct nlattr *nla_lse,
808 struct flow_dissector_key_mpls *key_val,
809 struct flow_dissector_key_mpls *key_mask,
810 struct netlink_ext_ack *extack)
812 struct nlattr *tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX + 1];
813 struct flow_dissector_mpls_lse *lse_mask;
814 struct flow_dissector_mpls_lse *lse_val;
819 err = nla_parse_nested(tb, TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX, nla_lse,
820 mpls_stack_entry_policy, extack);
824 if (!tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH]) {
825 NL_SET_ERR_MSG(extack, "Missing MPLS option \"depth\"");
829 depth = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH]);
831 /* LSE depth starts at 1, for consistency with terminology used by
832 * RFC 3031 (section 3.9), where depth 0 refers to unlabeled packets.
834 if (depth < 1 || depth > FLOW_DIS_MPLS_MAX) {
835 NL_SET_ERR_MSG_ATTR(extack,
836 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH],
837 "Invalid MPLS depth");
840 lse_index = depth - 1;
842 dissector_set_mpls_lse(key_val, lse_index);
843 dissector_set_mpls_lse(key_mask, lse_index);
845 lse_val = &key_val->ls[lse_index];
846 lse_mask = &key_mask->ls[lse_index];
848 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL]) {
849 lse_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL]);
850 lse_mask->mpls_ttl = MPLS_TTL_MASK;
852 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS]) {
853 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS]);
855 if (bos & ~MPLS_BOS_MASK) {
856 NL_SET_ERR_MSG_ATTR(extack,
857 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS],
858 "Bottom Of Stack (BOS) must be 0 or 1");
861 lse_val->mpls_bos = bos;
862 lse_mask->mpls_bos = MPLS_BOS_MASK;
864 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC]) {
865 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC]);
867 if (tc & ~MPLS_TC_MASK) {
868 NL_SET_ERR_MSG_ATTR(extack,
869 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC],
870 "Traffic Class (TC) must be between 0 and 7");
873 lse_val->mpls_tc = tc;
874 lse_mask->mpls_tc = MPLS_TC_MASK;
876 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL]) {
877 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL]);
879 if (label & ~MPLS_LABEL_MASK) {
880 NL_SET_ERR_MSG_ATTR(extack,
881 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL],
882 "Label must be between 0 and 1048575");
885 lse_val->mpls_label = label;
886 lse_mask->mpls_label = MPLS_LABEL_MASK;
892 static int fl_set_key_mpls_opts(const struct nlattr *nla_mpls_opts,
893 struct flow_dissector_key_mpls *key_val,
894 struct flow_dissector_key_mpls *key_mask,
895 struct netlink_ext_ack *extack)
897 struct nlattr *nla_lse;
901 if (!(nla_mpls_opts->nla_type & NLA_F_NESTED)) {
902 NL_SET_ERR_MSG_ATTR(extack, nla_mpls_opts,
903 "NLA_F_NESTED is missing");
907 nla_for_each_nested(nla_lse, nla_mpls_opts, rem) {
908 if (nla_type(nla_lse) != TCA_FLOWER_KEY_MPLS_OPTS_LSE) {
909 NL_SET_ERR_MSG_ATTR(extack, nla_lse,
910 "Invalid MPLS option type");
914 err = fl_set_key_mpls_lse(nla_lse, key_val, key_mask, extack);
919 NL_SET_ERR_MSG(extack,
920 "Bytes leftover after parsing MPLS options");
927 static int fl_set_key_mpls(struct nlattr **tb,
928 struct flow_dissector_key_mpls *key_val,
929 struct flow_dissector_key_mpls *key_mask,
930 struct netlink_ext_ack *extack)
932 struct flow_dissector_mpls_lse *lse_mask;
933 struct flow_dissector_mpls_lse *lse_val;
935 if (tb[TCA_FLOWER_KEY_MPLS_OPTS]) {
936 if (tb[TCA_FLOWER_KEY_MPLS_TTL] ||
937 tb[TCA_FLOWER_KEY_MPLS_BOS] ||
938 tb[TCA_FLOWER_KEY_MPLS_TC] ||
939 tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
940 NL_SET_ERR_MSG_ATTR(extack,
941 tb[TCA_FLOWER_KEY_MPLS_OPTS],
942 "MPLS label, Traffic Class, Bottom Of Stack and Time To Live must be encapsulated in the MPLS options attribute");
946 return fl_set_key_mpls_opts(tb[TCA_FLOWER_KEY_MPLS_OPTS],
947 key_val, key_mask, extack);
950 lse_val = &key_val->ls[0];
951 lse_mask = &key_mask->ls[0];
953 if (tb[TCA_FLOWER_KEY_MPLS_TTL]) {
954 lse_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]);
955 lse_mask->mpls_ttl = MPLS_TTL_MASK;
956 dissector_set_mpls_lse(key_val, 0);
957 dissector_set_mpls_lse(key_mask, 0);
959 if (tb[TCA_FLOWER_KEY_MPLS_BOS]) {
960 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]);
962 if (bos & ~MPLS_BOS_MASK) {
963 NL_SET_ERR_MSG_ATTR(extack,
964 tb[TCA_FLOWER_KEY_MPLS_BOS],
965 "Bottom Of Stack (BOS) must be 0 or 1");
968 lse_val->mpls_bos = bos;
969 lse_mask->mpls_bos = MPLS_BOS_MASK;
970 dissector_set_mpls_lse(key_val, 0);
971 dissector_set_mpls_lse(key_mask, 0);
973 if (tb[TCA_FLOWER_KEY_MPLS_TC]) {
974 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]);
976 if (tc & ~MPLS_TC_MASK) {
977 NL_SET_ERR_MSG_ATTR(extack,
978 tb[TCA_FLOWER_KEY_MPLS_TC],
979 "Traffic Class (TC) must be between 0 and 7");
982 lse_val->mpls_tc = tc;
983 lse_mask->mpls_tc = MPLS_TC_MASK;
984 dissector_set_mpls_lse(key_val, 0);
985 dissector_set_mpls_lse(key_mask, 0);
987 if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
988 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]);
990 if (label & ~MPLS_LABEL_MASK) {
991 NL_SET_ERR_MSG_ATTR(extack,
992 tb[TCA_FLOWER_KEY_MPLS_LABEL],
993 "Label must be between 0 and 1048575");
996 lse_val->mpls_label = label;
997 lse_mask->mpls_label = MPLS_LABEL_MASK;
998 dissector_set_mpls_lse(key_val, 0);
999 dissector_set_mpls_lse(key_mask, 0);
1004 static void fl_set_key_vlan(struct nlattr **tb,
1006 int vlan_id_key, int vlan_prio_key,
1007 int vlan_next_eth_type_key,
1008 struct flow_dissector_key_vlan *key_val,
1009 struct flow_dissector_key_vlan *key_mask)
1011 #define VLAN_PRIORITY_MASK 0x7
1013 if (tb[vlan_id_key]) {
1015 nla_get_u16(tb[vlan_id_key]) & VLAN_VID_MASK;
1016 key_mask->vlan_id = VLAN_VID_MASK;
1018 if (tb[vlan_prio_key]) {
1019 key_val->vlan_priority =
1020 nla_get_u8(tb[vlan_prio_key]) &
1022 key_mask->vlan_priority = VLAN_PRIORITY_MASK;
1024 key_val->vlan_tpid = ethertype;
1025 key_mask->vlan_tpid = cpu_to_be16(~0);
1026 if (tb[vlan_next_eth_type_key]) {
1027 key_val->vlan_eth_type =
1028 nla_get_be16(tb[vlan_next_eth_type_key]);
1029 key_mask->vlan_eth_type = cpu_to_be16(~0);
1033 static void fl_set_key_flag(u32 flower_key, u32 flower_mask,
1034 u32 *dissector_key, u32 *dissector_mask,
1035 u32 flower_flag_bit, u32 dissector_flag_bit)
1037 if (flower_mask & flower_flag_bit) {
1038 *dissector_mask |= dissector_flag_bit;
1039 if (flower_key & flower_flag_bit)
1040 *dissector_key |= dissector_flag_bit;
1044 static int fl_set_key_flags(struct nlattr **tb, u32 *flags_key,
1045 u32 *flags_mask, struct netlink_ext_ack *extack)
1049 /* mask is mandatory for flags */
1050 if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) {
1051 NL_SET_ERR_MSG(extack, "Missing flags mask");
1055 key = be32_to_cpu(nla_get_be32(tb[TCA_FLOWER_KEY_FLAGS]));
1056 mask = be32_to_cpu(nla_get_be32(tb[TCA_FLOWER_KEY_FLAGS_MASK]));
1061 fl_set_key_flag(key, mask, flags_key, flags_mask,
1062 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
1063 fl_set_key_flag(key, mask, flags_key, flags_mask,
1064 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
1065 FLOW_DIS_FIRST_FRAG);
1070 static void fl_set_key_ip(struct nlattr **tb, bool encap,
1071 struct flow_dissector_key_ip *key,
1072 struct flow_dissector_key_ip *mask)
1074 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
1075 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
1076 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
1077 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
1079 fl_set_key_val(tb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos));
1080 fl_set_key_val(tb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl));
1083 static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key,
1084 int depth, int option_len,
1085 struct netlink_ext_ack *extack)
1087 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1];
1088 struct nlattr *class = NULL, *type = NULL, *data = NULL;
1089 struct geneve_opt *opt;
1090 int err, data_len = 0;
1092 if (option_len > sizeof(struct geneve_opt))
1093 data_len = option_len - sizeof(struct geneve_opt);
1095 opt = (struct geneve_opt *)&key->enc_opts.data[key->enc_opts.len];
1096 memset(opt, 0xff, option_len);
1097 opt->length = data_len / 4;
1102 /* If no mask has been prodived we assume an exact match. */
1104 return sizeof(struct geneve_opt) + data_len;
1106 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_GENEVE) {
1107 NL_SET_ERR_MSG(extack, "Non-geneve option type for mask");
1111 err = nla_parse_nested_deprecated(tb,
1112 TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX,
1113 nla, geneve_opt_policy, extack);
1117 /* We are not allowed to omit any of CLASS, TYPE or DATA
1118 * fields from the key.
1121 (!tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] ||
1122 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] ||
1123 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA])) {
1124 NL_SET_ERR_MSG(extack, "Missing tunnel key geneve option class, type or data");
1128 /* Omitting any of CLASS, TYPE or DATA fields is allowed
1131 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA]) {
1132 int new_len = key->enc_opts.len;
1134 data = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA];
1135 data_len = nla_len(data);
1137 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is less than 4 bytes long");
1141 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is not a multiple of 4 bytes long");
1145 new_len += sizeof(struct geneve_opt) + data_len;
1146 BUILD_BUG_ON(FLOW_DIS_TUN_OPTS_MAX != IP_TUNNEL_OPTS_MAX);
1147 if (new_len > FLOW_DIS_TUN_OPTS_MAX) {
1148 NL_SET_ERR_MSG(extack, "Tunnel options exceeds max size");
1151 opt->length = data_len / 4;
1152 memcpy(opt->opt_data, nla_data(data), data_len);
1155 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS]) {
1156 class = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS];
1157 opt->opt_class = nla_get_be16(class);
1160 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE]) {
1161 type = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE];
1162 opt->type = nla_get_u8(type);
1165 return sizeof(struct geneve_opt) + data_len;
1168 static int fl_set_vxlan_opt(const struct nlattr *nla, struct fl_flow_key *key,
1169 int depth, int option_len,
1170 struct netlink_ext_ack *extack)
1172 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX + 1];
1173 struct vxlan_metadata *md;
1176 md = (struct vxlan_metadata *)&key->enc_opts.data[key->enc_opts.len];
1177 memset(md, 0xff, sizeof(*md));
1182 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_VXLAN) {
1183 NL_SET_ERR_MSG(extack, "Non-vxlan option type for mask");
1187 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX, nla,
1188 vxlan_opt_policy, extack);
1192 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]) {
1193 NL_SET_ERR_MSG(extack, "Missing tunnel key vxlan option gbp");
1197 if (tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]) {
1198 md->gbp = nla_get_u32(tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]);
1199 md->gbp &= VXLAN_GBP_MASK;
1205 static int fl_set_erspan_opt(const struct nlattr *nla, struct fl_flow_key *key,
1206 int depth, int option_len,
1207 struct netlink_ext_ack *extack)
1209 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX + 1];
1210 struct erspan_metadata *md;
1213 md = (struct erspan_metadata *)&key->enc_opts.data[key->enc_opts.len];
1214 memset(md, 0xff, sizeof(*md));
1220 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_ERSPAN) {
1221 NL_SET_ERR_MSG(extack, "Non-erspan option type for mask");
1225 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX, nla,
1226 erspan_opt_policy, extack);
1230 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]) {
1231 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option ver");
1235 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER])
1236 md->version = nla_get_u8(tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]);
1238 if (md->version == 1) {
1239 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]) {
1240 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option index");
1243 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]) {
1244 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX];
1245 memset(&md->u, 0x00, sizeof(md->u));
1246 md->u.index = nla_get_be32(nla);
1248 } else if (md->version == 2) {
1249 if (!option_len && (!tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR] ||
1250 !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID])) {
1251 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option dir or hwid");
1254 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR]) {
1255 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR];
1256 md->u.md2.dir = nla_get_u8(nla);
1258 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID]) {
1259 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID];
1260 set_hwid(&md->u.md2, nla_get_u8(nla));
1263 NL_SET_ERR_MSG(extack, "Tunnel key erspan option ver is incorrect");
1270 static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key,
1271 struct fl_flow_key *mask,
1272 struct netlink_ext_ack *extack)
1274 const struct nlattr *nla_enc_key, *nla_opt_key, *nla_opt_msk = NULL;
1275 int err, option_len, key_depth, msk_depth = 0;
1277 err = nla_validate_nested_deprecated(tb[TCA_FLOWER_KEY_ENC_OPTS],
1278 TCA_FLOWER_KEY_ENC_OPTS_MAX,
1279 enc_opts_policy, extack);
1283 nla_enc_key = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS]);
1285 if (tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]) {
1286 err = nla_validate_nested_deprecated(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK],
1287 TCA_FLOWER_KEY_ENC_OPTS_MAX,
1288 enc_opts_policy, extack);
1292 nla_opt_msk = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
1293 msk_depth = nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
1294 if (!nla_ok(nla_opt_msk, msk_depth)) {
1295 NL_SET_ERR_MSG(extack, "Invalid nested attribute for masks");
1300 nla_for_each_attr(nla_opt_key, nla_enc_key,
1301 nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS]), key_depth) {
1302 switch (nla_type(nla_opt_key)) {
1303 case TCA_FLOWER_KEY_ENC_OPTS_GENEVE:
1304 if (key->enc_opts.dst_opt_type &&
1305 key->enc_opts.dst_opt_type != TUNNEL_GENEVE_OPT) {
1306 NL_SET_ERR_MSG(extack, "Duplicate type for geneve options");
1310 key->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
1311 option_len = fl_set_geneve_opt(nla_opt_key, key,
1312 key_depth, option_len,
1317 key->enc_opts.len += option_len;
1318 /* At the same time we need to parse through the mask
1319 * in order to verify exact and mask attribute lengths.
1321 mask->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
1322 option_len = fl_set_geneve_opt(nla_opt_msk, mask,
1323 msk_depth, option_len,
1328 mask->enc_opts.len += option_len;
1329 if (key->enc_opts.len != mask->enc_opts.len) {
1330 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1334 case TCA_FLOWER_KEY_ENC_OPTS_VXLAN:
1335 if (key->enc_opts.dst_opt_type) {
1336 NL_SET_ERR_MSG(extack, "Duplicate type for vxlan options");
1340 key->enc_opts.dst_opt_type = TUNNEL_VXLAN_OPT;
1341 option_len = fl_set_vxlan_opt(nla_opt_key, key,
1342 key_depth, option_len,
1347 key->enc_opts.len += option_len;
1348 /* At the same time we need to parse through the mask
1349 * in order to verify exact and mask attribute lengths.
1351 mask->enc_opts.dst_opt_type = TUNNEL_VXLAN_OPT;
1352 option_len = fl_set_vxlan_opt(nla_opt_msk, mask,
1353 msk_depth, option_len,
1358 mask->enc_opts.len += option_len;
1359 if (key->enc_opts.len != mask->enc_opts.len) {
1360 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1364 case TCA_FLOWER_KEY_ENC_OPTS_ERSPAN:
1365 if (key->enc_opts.dst_opt_type) {
1366 NL_SET_ERR_MSG(extack, "Duplicate type for erspan options");
1370 key->enc_opts.dst_opt_type = TUNNEL_ERSPAN_OPT;
1371 option_len = fl_set_erspan_opt(nla_opt_key, key,
1372 key_depth, option_len,
1377 key->enc_opts.len += option_len;
1378 /* At the same time we need to parse through the mask
1379 * in order to verify exact and mask attribute lengths.
1381 mask->enc_opts.dst_opt_type = TUNNEL_ERSPAN_OPT;
1382 option_len = fl_set_erspan_opt(nla_opt_msk, mask,
1383 msk_depth, option_len,
1388 mask->enc_opts.len += option_len;
1389 if (key->enc_opts.len != mask->enc_opts.len) {
1390 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1395 NL_SET_ERR_MSG(extack, "Unknown tunnel option type");
1402 if (!nla_ok(nla_opt_msk, msk_depth)) {
1403 NL_SET_ERR_MSG(extack, "A mask attribute is invalid");
1406 nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
1412 static int fl_validate_ct_state(u16 state, struct nlattr *tb,
1413 struct netlink_ext_ack *extack)
1415 if (state && !(state & TCA_FLOWER_KEY_CT_FLAGS_TRACKED)) {
1416 NL_SET_ERR_MSG_ATTR(extack, tb,
1417 "no trk, so no other flag can be set");
1421 if (state & TCA_FLOWER_KEY_CT_FLAGS_NEW &&
1422 state & TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED) {
1423 NL_SET_ERR_MSG_ATTR(extack, tb,
1424 "new and est are mutually exclusive");
1428 if (state & TCA_FLOWER_KEY_CT_FLAGS_INVALID &&
1429 state & ~(TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
1430 TCA_FLOWER_KEY_CT_FLAGS_INVALID)) {
1431 NL_SET_ERR_MSG_ATTR(extack, tb,
1432 "when inv is set, only trk may be set");
1436 if (state & TCA_FLOWER_KEY_CT_FLAGS_NEW &&
1437 state & TCA_FLOWER_KEY_CT_FLAGS_REPLY) {
1438 NL_SET_ERR_MSG_ATTR(extack, tb,
1439 "new and rpl are mutually exclusive");
1446 static int fl_set_key_ct(struct nlattr **tb,
1447 struct flow_dissector_key_ct *key,
1448 struct flow_dissector_key_ct *mask,
1449 struct netlink_ext_ack *extack)
1451 if (tb[TCA_FLOWER_KEY_CT_STATE]) {
1454 if (!IS_ENABLED(CONFIG_NF_CONNTRACK)) {
1455 NL_SET_ERR_MSG(extack, "Conntrack isn't enabled");
1458 fl_set_key_val(tb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE,
1459 &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
1460 sizeof(key->ct_state));
1462 err = fl_validate_ct_state(key->ct_state & mask->ct_state,
1463 tb[TCA_FLOWER_KEY_CT_STATE_MASK],
1469 if (tb[TCA_FLOWER_KEY_CT_ZONE]) {
1470 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES)) {
1471 NL_SET_ERR_MSG(extack, "Conntrack zones isn't enabled");
1474 fl_set_key_val(tb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE,
1475 &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK,
1476 sizeof(key->ct_zone));
1478 if (tb[TCA_FLOWER_KEY_CT_MARK]) {
1479 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_MARK)) {
1480 NL_SET_ERR_MSG(extack, "Conntrack mark isn't enabled");
1483 fl_set_key_val(tb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK,
1484 &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK,
1485 sizeof(key->ct_mark));
1487 if (tb[TCA_FLOWER_KEY_CT_LABELS]) {
1488 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS)) {
1489 NL_SET_ERR_MSG(extack, "Conntrack labels aren't enabled");
1492 fl_set_key_val(tb, key->ct_labels, TCA_FLOWER_KEY_CT_LABELS,
1493 mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK,
1494 sizeof(key->ct_labels));
1500 static int fl_set_key(struct net *net, struct nlattr **tb,
1501 struct fl_flow_key *key, struct fl_flow_key *mask,
1502 struct netlink_ext_ack *extack)
1507 if (tb[TCA_FLOWER_INDEV]) {
1508 int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack);
1511 key->meta.ingress_ifindex = err;
1512 mask->meta.ingress_ifindex = 0xffffffff;
1515 fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
1516 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
1517 sizeof(key->eth.dst));
1518 fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
1519 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
1520 sizeof(key->eth.src));
1522 if (tb[TCA_FLOWER_KEY_ETH_TYPE]) {
1523 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]);
1525 if (eth_type_vlan(ethertype)) {
1526 fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID,
1527 TCA_FLOWER_KEY_VLAN_PRIO,
1528 TCA_FLOWER_KEY_VLAN_ETH_TYPE,
1529 &key->vlan, &mask->vlan);
1531 if (tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]) {
1532 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]);
1533 if (eth_type_vlan(ethertype)) {
1534 fl_set_key_vlan(tb, ethertype,
1535 TCA_FLOWER_KEY_CVLAN_ID,
1536 TCA_FLOWER_KEY_CVLAN_PRIO,
1537 TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
1538 &key->cvlan, &mask->cvlan);
1539 fl_set_key_val(tb, &key->basic.n_proto,
1540 TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
1541 &mask->basic.n_proto,
1543 sizeof(key->basic.n_proto));
1545 key->basic.n_proto = ethertype;
1546 mask->basic.n_proto = cpu_to_be16(~0);
1550 key->basic.n_proto = ethertype;
1551 mask->basic.n_proto = cpu_to_be16(~0);
1555 if (key->basic.n_proto == htons(ETH_P_IP) ||
1556 key->basic.n_proto == htons(ETH_P_IPV6)) {
1557 fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
1558 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
1559 sizeof(key->basic.ip_proto));
1560 fl_set_key_ip(tb, false, &key->ip, &mask->ip);
1563 if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) {
1564 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
1565 mask->control.addr_type = ~0;
1566 fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
1567 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
1568 sizeof(key->ipv4.src));
1569 fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
1570 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
1571 sizeof(key->ipv4.dst));
1572 } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) {
1573 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
1574 mask->control.addr_type = ~0;
1575 fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
1576 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
1577 sizeof(key->ipv6.src));
1578 fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
1579 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
1580 sizeof(key->ipv6.dst));
1583 if (key->basic.ip_proto == IPPROTO_TCP) {
1584 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
1585 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
1586 sizeof(key->tp.src));
1587 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
1588 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
1589 sizeof(key->tp.dst));
1590 fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
1591 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
1592 sizeof(key->tcp.flags));
1593 } else if (key->basic.ip_proto == IPPROTO_UDP) {
1594 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
1595 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
1596 sizeof(key->tp.src));
1597 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
1598 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
1599 sizeof(key->tp.dst));
1600 } else if (key->basic.ip_proto == IPPROTO_SCTP) {
1601 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
1602 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
1603 sizeof(key->tp.src));
1604 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
1605 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
1606 sizeof(key->tp.dst));
1607 } else if (key->basic.n_proto == htons(ETH_P_IP) &&
1608 key->basic.ip_proto == IPPROTO_ICMP) {
1609 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE,
1611 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
1612 sizeof(key->icmp.type));
1613 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE,
1615 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
1616 sizeof(key->icmp.code));
1617 } else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
1618 key->basic.ip_proto == IPPROTO_ICMPV6) {
1619 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE,
1621 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
1622 sizeof(key->icmp.type));
1623 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE,
1625 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
1626 sizeof(key->icmp.code));
1627 } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) ||
1628 key->basic.n_proto == htons(ETH_P_MPLS_MC)) {
1629 ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls, extack);
1632 } else if (key->basic.n_proto == htons(ETH_P_ARP) ||
1633 key->basic.n_proto == htons(ETH_P_RARP)) {
1634 fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP,
1635 &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK,
1636 sizeof(key->arp.sip));
1637 fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP,
1638 &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK,
1639 sizeof(key->arp.tip));
1640 fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP,
1641 &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK,
1642 sizeof(key->arp.op));
1643 fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
1644 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
1645 sizeof(key->arp.sha));
1646 fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
1647 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
1648 sizeof(key->arp.tha));
1651 if (key->basic.ip_proto == IPPROTO_TCP ||
1652 key->basic.ip_proto == IPPROTO_UDP ||
1653 key->basic.ip_proto == IPPROTO_SCTP) {
1654 ret = fl_set_key_port_range(tb, key, mask, extack);
1659 if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] ||
1660 tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) {
1661 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
1662 mask->enc_control.addr_type = ~0;
1663 fl_set_key_val(tb, &key->enc_ipv4.src,
1664 TCA_FLOWER_KEY_ENC_IPV4_SRC,
1665 &mask->enc_ipv4.src,
1666 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
1667 sizeof(key->enc_ipv4.src));
1668 fl_set_key_val(tb, &key->enc_ipv4.dst,
1669 TCA_FLOWER_KEY_ENC_IPV4_DST,
1670 &mask->enc_ipv4.dst,
1671 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
1672 sizeof(key->enc_ipv4.dst));
1675 if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] ||
1676 tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) {
1677 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
1678 mask->enc_control.addr_type = ~0;
1679 fl_set_key_val(tb, &key->enc_ipv6.src,
1680 TCA_FLOWER_KEY_ENC_IPV6_SRC,
1681 &mask->enc_ipv6.src,
1682 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
1683 sizeof(key->enc_ipv6.src));
1684 fl_set_key_val(tb, &key->enc_ipv6.dst,
1685 TCA_FLOWER_KEY_ENC_IPV6_DST,
1686 &mask->enc_ipv6.dst,
1687 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
1688 sizeof(key->enc_ipv6.dst));
1691 fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID,
1692 &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC,
1693 sizeof(key->enc_key_id.keyid));
1695 fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
1696 &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
1697 sizeof(key->enc_tp.src));
1699 fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
1700 &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
1701 sizeof(key->enc_tp.dst));
1703 fl_set_key_ip(tb, true, &key->enc_ip, &mask->enc_ip);
1705 fl_set_key_val(tb, &key->hash.hash, TCA_FLOWER_KEY_HASH,
1706 &mask->hash.hash, TCA_FLOWER_KEY_HASH_MASK,
1707 sizeof(key->hash.hash));
1709 if (tb[TCA_FLOWER_KEY_ENC_OPTS]) {
1710 ret = fl_set_enc_opt(tb, key, mask, extack);
1715 ret = fl_set_key_ct(tb, &key->ct, &mask->ct, extack);
1719 if (tb[TCA_FLOWER_KEY_FLAGS])
1720 ret = fl_set_key_flags(tb, &key->control.flags,
1721 &mask->control.flags, extack);
1726 static void fl_mask_copy(struct fl_flow_mask *dst,
1727 struct fl_flow_mask *src)
1729 const void *psrc = fl_key_get_start(&src->key, src);
1730 void *pdst = fl_key_get_start(&dst->key, src);
1732 memcpy(pdst, psrc, fl_mask_range(src));
1733 dst->range = src->range;
1736 static const struct rhashtable_params fl_ht_params = {
1737 .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */
1738 .head_offset = offsetof(struct cls_fl_filter, ht_node),
1739 .automatic_shrinking = true,
1742 static int fl_init_mask_hashtable(struct fl_flow_mask *mask)
1744 mask->filter_ht_params = fl_ht_params;
1745 mask->filter_ht_params.key_len = fl_mask_range(mask);
1746 mask->filter_ht_params.key_offset += mask->range.start;
1748 return rhashtable_init(&mask->ht, &mask->filter_ht_params);
1751 #define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member)
1752 #define FL_KEY_MEMBER_SIZE(member) sizeof_field(struct fl_flow_key, member)
1754 #define FL_KEY_IS_MASKED(mask, member) \
1755 memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \
1756 0, FL_KEY_MEMBER_SIZE(member)) \
1758 #define FL_KEY_SET(keys, cnt, id, member) \
1760 keys[cnt].key_id = id; \
1761 keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \
1765 #define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \
1767 if (FL_KEY_IS_MASKED(mask, member)) \
1768 FL_KEY_SET(keys, cnt, id, member); \
1771 static void fl_init_dissector(struct flow_dissector *dissector,
1772 struct fl_flow_key *mask)
1774 struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX];
1777 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1778 FLOW_DISSECTOR_KEY_META, meta);
1779 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control);
1780 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic);
1781 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1782 FLOW_DISSECTOR_KEY_ETH_ADDRS, eth);
1783 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1784 FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4);
1785 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1786 FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6);
1787 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1788 FLOW_DISSECTOR_KEY_PORTS, tp);
1789 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1790 FLOW_DISSECTOR_KEY_PORTS_RANGE, tp_range);
1791 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1792 FLOW_DISSECTOR_KEY_IP, ip);
1793 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1794 FLOW_DISSECTOR_KEY_TCP, tcp);
1795 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1796 FLOW_DISSECTOR_KEY_ICMP, icmp);
1797 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1798 FLOW_DISSECTOR_KEY_ARP, arp);
1799 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1800 FLOW_DISSECTOR_KEY_MPLS, mpls);
1801 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1802 FLOW_DISSECTOR_KEY_VLAN, vlan);
1803 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1804 FLOW_DISSECTOR_KEY_CVLAN, cvlan);
1805 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1806 FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id);
1807 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1808 FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4);
1809 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1810 FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6);
1811 if (FL_KEY_IS_MASKED(mask, enc_ipv4) ||
1812 FL_KEY_IS_MASKED(mask, enc_ipv6))
1813 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL,
1815 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1816 FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp);
1817 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1818 FLOW_DISSECTOR_KEY_ENC_IP, enc_ip);
1819 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1820 FLOW_DISSECTOR_KEY_ENC_OPTS, enc_opts);
1821 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1822 FLOW_DISSECTOR_KEY_CT, ct);
1823 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1824 FLOW_DISSECTOR_KEY_HASH, hash);
1826 skb_flow_dissector_init(dissector, keys, cnt);
1829 static struct fl_flow_mask *fl_create_new_mask(struct cls_fl_head *head,
1830 struct fl_flow_mask *mask)
1832 struct fl_flow_mask *newmask;
1835 newmask = kzalloc(sizeof(*newmask), GFP_KERNEL);
1837 return ERR_PTR(-ENOMEM);
1839 fl_mask_copy(newmask, mask);
1841 if ((newmask->key.tp_range.tp_min.dst &&
1842 newmask->key.tp_range.tp_max.dst) ||
1843 (newmask->key.tp_range.tp_min.src &&
1844 newmask->key.tp_range.tp_max.src))
1845 newmask->flags |= TCA_FLOWER_MASK_FLAGS_RANGE;
1847 err = fl_init_mask_hashtable(newmask);
1851 fl_init_dissector(&newmask->dissector, &newmask->key);
1853 INIT_LIST_HEAD_RCU(&newmask->filters);
1855 refcount_set(&newmask->refcnt, 1);
1856 err = rhashtable_replace_fast(&head->ht, &mask->ht_node,
1857 &newmask->ht_node, mask_ht_params);
1859 goto errout_destroy;
1861 spin_lock(&head->masks_lock);
1862 list_add_tail_rcu(&newmask->list, &head->masks);
1863 spin_unlock(&head->masks_lock);
1868 rhashtable_destroy(&newmask->ht);
1872 return ERR_PTR(err);
1875 static int fl_check_assign_mask(struct cls_fl_head *head,
1876 struct cls_fl_filter *fnew,
1877 struct cls_fl_filter *fold,
1878 struct fl_flow_mask *mask)
1880 struct fl_flow_mask *newmask;
1885 /* Insert mask as temporary node to prevent concurrent creation of mask
1886 * with same key. Any concurrent lookups with same key will return
1887 * -EAGAIN because mask's refcnt is zero.
1889 fnew->mask = rhashtable_lookup_get_insert_fast(&head->ht,
1897 goto errout_cleanup;
1900 newmask = fl_create_new_mask(head, mask);
1901 if (IS_ERR(newmask)) {
1902 ret = PTR_ERR(newmask);
1903 goto errout_cleanup;
1906 fnew->mask = newmask;
1908 } else if (IS_ERR(fnew->mask)) {
1909 ret = PTR_ERR(fnew->mask);
1910 } else if (fold && fold->mask != fnew->mask) {
1912 } else if (!refcount_inc_not_zero(&fnew->mask->refcnt)) {
1913 /* Mask was deleted concurrently, try again */
1920 rhashtable_remove_fast(&head->ht, &mask->ht_node,
1925 static int fl_set_parms(struct net *net, struct tcf_proto *tp,
1926 struct cls_fl_filter *f, struct fl_flow_mask *mask,
1927 unsigned long base, struct nlattr **tb,
1929 struct fl_flow_tmplt *tmplt, u32 flags,
1930 struct netlink_ext_ack *extack)
1934 err = tcf_exts_validate(net, tp, tb, est, &f->exts, flags, extack);
1938 if (tb[TCA_FLOWER_CLASSID]) {
1939 f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]);
1940 if (flags & TCA_ACT_FLAGS_NO_RTNL)
1942 tcf_bind_filter(tp, &f->res, base);
1943 if (flags & TCA_ACT_FLAGS_NO_RTNL)
1947 err = fl_set_key(net, tb, &f->key, &mask->key, extack);
1951 fl_mask_update_range(mask);
1952 fl_set_masked_key(&f->mkey, &f->key, mask);
1954 if (!fl_mask_fits_tmplt(tmplt, mask)) {
1955 NL_SET_ERR_MSG_MOD(extack, "Mask does not fit the template");
1962 static int fl_ht_insert_unique(struct cls_fl_filter *fnew,
1963 struct cls_fl_filter *fold,
1966 struct fl_flow_mask *mask = fnew->mask;
1969 err = rhashtable_lookup_insert_fast(&mask->ht,
1971 mask->filter_ht_params);
1974 /* It is okay if filter with same key exists when
1977 return fold && err == -EEXIST ? 0 : err;
1984 static int fl_change(struct net *net, struct sk_buff *in_skb,
1985 struct tcf_proto *tp, unsigned long base,
1986 u32 handle, struct nlattr **tca,
1987 void **arg, u32 flags,
1988 struct netlink_ext_ack *extack)
1990 struct cls_fl_head *head = fl_head_dereference(tp);
1991 bool rtnl_held = !(flags & TCA_ACT_FLAGS_NO_RTNL);
1992 struct cls_fl_filter *fold = *arg;
1993 struct cls_fl_filter *fnew;
1994 struct fl_flow_mask *mask;
1999 if (!tca[TCA_OPTIONS]) {
2004 mask = kzalloc(sizeof(struct fl_flow_mask), GFP_KERNEL);
2010 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
2013 goto errout_mask_alloc;
2016 err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX,
2017 tca[TCA_OPTIONS], fl_policy, NULL);
2021 if (fold && handle && fold->handle != handle) {
2026 fnew = kzalloc(sizeof(*fnew), GFP_KERNEL);
2031 INIT_LIST_HEAD(&fnew->hw_list);
2032 refcount_set(&fnew->refcnt, 1);
2034 err = tcf_exts_init(&fnew->exts, net, TCA_FLOWER_ACT, 0);
2038 if (tb[TCA_FLOWER_FLAGS]) {
2039 fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]);
2041 if (!tc_flags_valid(fnew->flags)) {
2047 err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE],
2048 tp->chain->tmplt_priv, flags, extack);
2052 err = fl_check_assign_mask(head, fnew, fold, mask);
2056 err = fl_ht_insert_unique(fnew, fold, &in_ht);
2060 if (!tc_skip_hw(fnew->flags)) {
2061 err = fl_hw_replace_filter(tp, fnew, rtnl_held, extack);
2066 if (!tc_in_hw(fnew->flags))
2067 fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
2069 spin_lock(&tp->lock);
2071 /* tp was deleted concurrently. -EAGAIN will cause caller to lookup
2072 * proto again or create new one, if necessary.
2080 /* Fold filter was deleted concurrently. Retry lookup. */
2081 if (fold->deleted) {
2086 fnew->handle = handle;
2089 struct rhashtable_params params =
2090 fnew->mask->filter_ht_params;
2092 err = rhashtable_insert_fast(&fnew->mask->ht,
2100 refcount_inc(&fnew->refcnt);
2101 rhashtable_remove_fast(&fold->mask->ht,
2103 fold->mask->filter_ht_params);
2104 idr_replace(&head->handle_idr, fnew, fnew->handle);
2105 list_replace_rcu(&fold->list, &fnew->list);
2106 fold->deleted = true;
2108 spin_unlock(&tp->lock);
2110 fl_mask_put(head, fold->mask);
2111 if (!tc_skip_hw(fold->flags))
2112 fl_hw_destroy_filter(tp, fold, rtnl_held, NULL);
2113 tcf_unbind_filter(tp, &fold->res);
2114 /* Caller holds reference to fold, so refcnt is always > 0
2117 refcount_dec(&fold->refcnt);
2121 /* user specifies a handle and it doesn't exist */
2122 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
2123 handle, GFP_ATOMIC);
2125 /* Filter with specified handle was concurrently
2126 * inserted after initial check in cls_api. This is not
2127 * necessarily an error if NLM_F_EXCL is not set in
2128 * message flags. Returning EAGAIN will cause cls_api to
2129 * try to update concurrently inserted rule.
2135 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
2136 INT_MAX, GFP_ATOMIC);
2141 refcount_inc(&fnew->refcnt);
2142 fnew->handle = handle;
2143 list_add_tail_rcu(&fnew->list, &fnew->mask->filters);
2144 spin_unlock(&tp->lock);
2150 tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work);
2154 spin_lock(&tp->lock);
2156 fnew->deleted = true;
2157 spin_unlock(&tp->lock);
2158 if (!tc_skip_hw(fnew->flags))
2159 fl_hw_destroy_filter(tp, fnew, rtnl_held, NULL);
2161 rhashtable_remove_fast(&fnew->mask->ht, &fnew->ht_node,
2162 fnew->mask->filter_ht_params);
2164 fl_mask_put(head, fnew->mask);
2170 tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work);
2177 static int fl_delete(struct tcf_proto *tp, void *arg, bool *last,
2178 bool rtnl_held, struct netlink_ext_ack *extack)
2180 struct cls_fl_head *head = fl_head_dereference(tp);
2181 struct cls_fl_filter *f = arg;
2185 err = __fl_delete(tp, f, &last_on_mask, rtnl_held, extack);
2186 *last = list_empty(&head->masks);
2192 static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg,
2195 struct cls_fl_head *head = fl_head_dereference(tp);
2196 unsigned long id = arg->cookie, tmp;
2197 struct cls_fl_filter *f;
2199 arg->count = arg->skip;
2202 idr_for_each_entry_continue_ul(&head->handle_idr, f, tmp, id) {
2203 /* don't return filters that are being deleted */
2204 if (!refcount_inc_not_zero(&f->refcnt))
2208 if (arg->fn(tp, f, arg) < 0) {
2222 static struct cls_fl_filter *
2223 fl_get_next_hw_filter(struct tcf_proto *tp, struct cls_fl_filter *f, bool add)
2225 struct cls_fl_head *head = fl_head_dereference(tp);
2227 spin_lock(&tp->lock);
2228 if (list_empty(&head->hw_filters)) {
2229 spin_unlock(&tp->lock);
2234 f = list_entry(&head->hw_filters, struct cls_fl_filter,
2236 list_for_each_entry_continue(f, &head->hw_filters, hw_list) {
2237 if (!(add && f->deleted) && refcount_inc_not_zero(&f->refcnt)) {
2238 spin_unlock(&tp->lock);
2243 spin_unlock(&tp->lock);
2247 static int fl_reoffload(struct tcf_proto *tp, bool add, flow_setup_cb_t *cb,
2248 void *cb_priv, struct netlink_ext_ack *extack)
2250 struct tcf_block *block = tp->chain->block;
2251 struct flow_cls_offload cls_flower = {};
2252 struct cls_fl_filter *f = NULL;
2255 /* hw_filters list can only be changed by hw offload functions after
2256 * obtaining rtnl lock. Make sure it is not changed while reoffload is
2261 while ((f = fl_get_next_hw_filter(tp, f, add))) {
2263 flow_rule_alloc(tcf_exts_num_actions(&f->exts));
2264 if (!cls_flower.rule) {
2269 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags,
2271 cls_flower.command = add ?
2272 FLOW_CLS_REPLACE : FLOW_CLS_DESTROY;
2273 cls_flower.cookie = (unsigned long)f;
2274 cls_flower.rule->match.dissector = &f->mask->dissector;
2275 cls_flower.rule->match.mask = &f->mask->key;
2276 cls_flower.rule->match.key = &f->mkey;
2278 err = tc_setup_flow_action(&cls_flower.rule->action, &f->exts);
2280 kfree(cls_flower.rule);
2281 if (tc_skip_sw(f->flags)) {
2282 NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action");
2289 cls_flower.classid = f->res.classid;
2291 err = tc_setup_cb_reoffload(block, tp, add, cb,
2292 TC_SETUP_CLSFLOWER, &cls_flower,
2295 tc_cleanup_flow_action(&cls_flower.rule->action);
2296 kfree(cls_flower.rule);
2309 static void fl_hw_add(struct tcf_proto *tp, void *type_data)
2311 struct flow_cls_offload *cls_flower = type_data;
2312 struct cls_fl_filter *f =
2313 (struct cls_fl_filter *) cls_flower->cookie;
2314 struct cls_fl_head *head = fl_head_dereference(tp);
2316 spin_lock(&tp->lock);
2317 list_add(&f->hw_list, &head->hw_filters);
2318 spin_unlock(&tp->lock);
2321 static void fl_hw_del(struct tcf_proto *tp, void *type_data)
2323 struct flow_cls_offload *cls_flower = type_data;
2324 struct cls_fl_filter *f =
2325 (struct cls_fl_filter *) cls_flower->cookie;
2327 spin_lock(&tp->lock);
2328 if (!list_empty(&f->hw_list))
2329 list_del_init(&f->hw_list);
2330 spin_unlock(&tp->lock);
2333 static int fl_hw_create_tmplt(struct tcf_chain *chain,
2334 struct fl_flow_tmplt *tmplt)
2336 struct flow_cls_offload cls_flower = {};
2337 struct tcf_block *block = chain->block;
2339 cls_flower.rule = flow_rule_alloc(0);
2340 if (!cls_flower.rule)
2343 cls_flower.common.chain_index = chain->index;
2344 cls_flower.command = FLOW_CLS_TMPLT_CREATE;
2345 cls_flower.cookie = (unsigned long) tmplt;
2346 cls_flower.rule->match.dissector = &tmplt->dissector;
2347 cls_flower.rule->match.mask = &tmplt->mask;
2348 cls_flower.rule->match.key = &tmplt->dummy_key;
2350 /* We don't care if driver (any of them) fails to handle this
2351 * call. It serves just as a hint for it.
2353 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true);
2354 kfree(cls_flower.rule);
2359 static void fl_hw_destroy_tmplt(struct tcf_chain *chain,
2360 struct fl_flow_tmplt *tmplt)
2362 struct flow_cls_offload cls_flower = {};
2363 struct tcf_block *block = chain->block;
2365 cls_flower.common.chain_index = chain->index;
2366 cls_flower.command = FLOW_CLS_TMPLT_DESTROY;
2367 cls_flower.cookie = (unsigned long) tmplt;
2369 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true);
2372 static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain,
2373 struct nlattr **tca,
2374 struct netlink_ext_ack *extack)
2376 struct fl_flow_tmplt *tmplt;
2380 if (!tca[TCA_OPTIONS])
2381 return ERR_PTR(-EINVAL);
2383 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
2385 return ERR_PTR(-ENOBUFS);
2386 err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX,
2387 tca[TCA_OPTIONS], fl_policy, NULL);
2391 tmplt = kzalloc(sizeof(*tmplt), GFP_KERNEL);
2396 tmplt->chain = chain;
2397 err = fl_set_key(net, tb, &tmplt->dummy_key, &tmplt->mask, extack);
2401 fl_init_dissector(&tmplt->dissector, &tmplt->mask);
2403 err = fl_hw_create_tmplt(chain, tmplt);
2414 return ERR_PTR(err);
2417 static void fl_tmplt_destroy(void *tmplt_priv)
2419 struct fl_flow_tmplt *tmplt = tmplt_priv;
2421 fl_hw_destroy_tmplt(tmplt->chain, tmplt);
2425 static int fl_dump_key_val(struct sk_buff *skb,
2426 void *val, int val_type,
2427 void *mask, int mask_type, int len)
2431 if (!memchr_inv(mask, 0, len))
2433 err = nla_put(skb, val_type, len, val);
2436 if (mask_type != TCA_FLOWER_UNSPEC) {
2437 err = nla_put(skb, mask_type, len, mask);
2444 static int fl_dump_key_port_range(struct sk_buff *skb, struct fl_flow_key *key,
2445 struct fl_flow_key *mask)
2447 if (fl_dump_key_val(skb, &key->tp_range.tp_min.dst,
2448 TCA_FLOWER_KEY_PORT_DST_MIN,
2449 &mask->tp_range.tp_min.dst, TCA_FLOWER_UNSPEC,
2450 sizeof(key->tp_range.tp_min.dst)) ||
2451 fl_dump_key_val(skb, &key->tp_range.tp_max.dst,
2452 TCA_FLOWER_KEY_PORT_DST_MAX,
2453 &mask->tp_range.tp_max.dst, TCA_FLOWER_UNSPEC,
2454 sizeof(key->tp_range.tp_max.dst)) ||
2455 fl_dump_key_val(skb, &key->tp_range.tp_min.src,
2456 TCA_FLOWER_KEY_PORT_SRC_MIN,
2457 &mask->tp_range.tp_min.src, TCA_FLOWER_UNSPEC,
2458 sizeof(key->tp_range.tp_min.src)) ||
2459 fl_dump_key_val(skb, &key->tp_range.tp_max.src,
2460 TCA_FLOWER_KEY_PORT_SRC_MAX,
2461 &mask->tp_range.tp_max.src, TCA_FLOWER_UNSPEC,
2462 sizeof(key->tp_range.tp_max.src)))
2468 static int fl_dump_key_mpls_opt_lse(struct sk_buff *skb,
2469 struct flow_dissector_key_mpls *mpls_key,
2470 struct flow_dissector_key_mpls *mpls_mask,
2473 struct flow_dissector_mpls_lse *lse_mask = &mpls_mask->ls[lse_index];
2474 struct flow_dissector_mpls_lse *lse_key = &mpls_key->ls[lse_index];
2477 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH,
2482 if (lse_mask->mpls_ttl) {
2483 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL,
2488 if (lse_mask->mpls_bos) {
2489 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS,
2494 if (lse_mask->mpls_tc) {
2495 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_TC,
2500 if (lse_mask->mpls_label) {
2501 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL,
2502 lse_key->mpls_label);
2510 static int fl_dump_key_mpls_opts(struct sk_buff *skb,
2511 struct flow_dissector_key_mpls *mpls_key,
2512 struct flow_dissector_key_mpls *mpls_mask)
2514 struct nlattr *opts;
2519 opts = nla_nest_start(skb, TCA_FLOWER_KEY_MPLS_OPTS);
2523 for (lse_index = 0; lse_index < FLOW_DIS_MPLS_MAX; lse_index++) {
2524 if (!(mpls_mask->used_lses & 1 << lse_index))
2527 lse = nla_nest_start(skb, TCA_FLOWER_KEY_MPLS_OPTS_LSE);
2533 err = fl_dump_key_mpls_opt_lse(skb, mpls_key, mpls_mask,
2537 nla_nest_end(skb, lse);
2539 nla_nest_end(skb, opts);
2544 nla_nest_cancel(skb, lse);
2546 nla_nest_cancel(skb, opts);
2551 static int fl_dump_key_mpls(struct sk_buff *skb,
2552 struct flow_dissector_key_mpls *mpls_key,
2553 struct flow_dissector_key_mpls *mpls_mask)
2555 struct flow_dissector_mpls_lse *lse_mask;
2556 struct flow_dissector_mpls_lse *lse_key;
2559 if (!mpls_mask->used_lses)
2562 lse_mask = &mpls_mask->ls[0];
2563 lse_key = &mpls_key->ls[0];
2565 /* For backward compatibility, don't use the MPLS nested attributes if
2566 * the rule can be expressed using the old attributes.
2568 if (mpls_mask->used_lses & ~1 ||
2569 (!lse_mask->mpls_ttl && !lse_mask->mpls_bos &&
2570 !lse_mask->mpls_tc && !lse_mask->mpls_label))
2571 return fl_dump_key_mpls_opts(skb, mpls_key, mpls_mask);
2573 if (lse_mask->mpls_ttl) {
2574 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL,
2579 if (lse_mask->mpls_tc) {
2580 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC,
2585 if (lse_mask->mpls_label) {
2586 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL,
2587 lse_key->mpls_label);
2591 if (lse_mask->mpls_bos) {
2592 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS,
2600 static int fl_dump_key_ip(struct sk_buff *skb, bool encap,
2601 struct flow_dissector_key_ip *key,
2602 struct flow_dissector_key_ip *mask)
2604 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
2605 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
2606 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
2607 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
2609 if (fl_dump_key_val(skb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)) ||
2610 fl_dump_key_val(skb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl)))
2616 static int fl_dump_key_vlan(struct sk_buff *skb,
2617 int vlan_id_key, int vlan_prio_key,
2618 struct flow_dissector_key_vlan *vlan_key,
2619 struct flow_dissector_key_vlan *vlan_mask)
2623 if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask)))
2625 if (vlan_mask->vlan_id) {
2626 err = nla_put_u16(skb, vlan_id_key,
2631 if (vlan_mask->vlan_priority) {
2632 err = nla_put_u8(skb, vlan_prio_key,
2633 vlan_key->vlan_priority);
2640 static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask,
2641 u32 *flower_key, u32 *flower_mask,
2642 u32 flower_flag_bit, u32 dissector_flag_bit)
2644 if (dissector_mask & dissector_flag_bit) {
2645 *flower_mask |= flower_flag_bit;
2646 if (dissector_key & dissector_flag_bit)
2647 *flower_key |= flower_flag_bit;
2651 static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask)
2657 if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask)))
2663 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
2664 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
2665 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
2666 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
2667 FLOW_DIS_FIRST_FRAG);
2669 _key = cpu_to_be32(key);
2670 _mask = cpu_to_be32(mask);
2672 err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key);
2676 return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask);
2679 static int fl_dump_key_geneve_opt(struct sk_buff *skb,
2680 struct flow_dissector_key_enc_opts *enc_opts)
2682 struct geneve_opt *opt;
2683 struct nlattr *nest;
2686 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE);
2688 goto nla_put_failure;
2690 while (enc_opts->len > opt_off) {
2691 opt = (struct geneve_opt *)&enc_opts->data[opt_off];
2693 if (nla_put_be16(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS,
2695 goto nla_put_failure;
2696 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE,
2698 goto nla_put_failure;
2699 if (nla_put(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA,
2700 opt->length * 4, opt->opt_data))
2701 goto nla_put_failure;
2703 opt_off += sizeof(struct geneve_opt) + opt->length * 4;
2705 nla_nest_end(skb, nest);
2709 nla_nest_cancel(skb, nest);
2713 static int fl_dump_key_vxlan_opt(struct sk_buff *skb,
2714 struct flow_dissector_key_enc_opts *enc_opts)
2716 struct vxlan_metadata *md;
2717 struct nlattr *nest;
2719 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_VXLAN);
2721 goto nla_put_failure;
2723 md = (struct vxlan_metadata *)&enc_opts->data[0];
2724 if (nla_put_u32(skb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP, md->gbp))
2725 goto nla_put_failure;
2727 nla_nest_end(skb, nest);
2731 nla_nest_cancel(skb, nest);
2735 static int fl_dump_key_erspan_opt(struct sk_buff *skb,
2736 struct flow_dissector_key_enc_opts *enc_opts)
2738 struct erspan_metadata *md;
2739 struct nlattr *nest;
2741 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_ERSPAN);
2743 goto nla_put_failure;
2745 md = (struct erspan_metadata *)&enc_opts->data[0];
2746 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER, md->version))
2747 goto nla_put_failure;
2749 if (md->version == 1 &&
2750 nla_put_be32(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX, md->u.index))
2751 goto nla_put_failure;
2753 if (md->version == 2 &&
2754 (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR,
2756 nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID,
2757 get_hwid(&md->u.md2))))
2758 goto nla_put_failure;
2760 nla_nest_end(skb, nest);
2764 nla_nest_cancel(skb, nest);
2768 static int fl_dump_key_ct(struct sk_buff *skb,
2769 struct flow_dissector_key_ct *key,
2770 struct flow_dissector_key_ct *mask)
2772 if (IS_ENABLED(CONFIG_NF_CONNTRACK) &&
2773 fl_dump_key_val(skb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE,
2774 &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
2775 sizeof(key->ct_state)))
2776 goto nla_put_failure;
2778 if (IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES) &&
2779 fl_dump_key_val(skb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE,
2780 &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK,
2781 sizeof(key->ct_zone)))
2782 goto nla_put_failure;
2784 if (IS_ENABLED(CONFIG_NF_CONNTRACK_MARK) &&
2785 fl_dump_key_val(skb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK,
2786 &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK,
2787 sizeof(key->ct_mark)))
2788 goto nla_put_failure;
2790 if (IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS) &&
2791 fl_dump_key_val(skb, &key->ct_labels, TCA_FLOWER_KEY_CT_LABELS,
2792 &mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK,
2793 sizeof(key->ct_labels)))
2794 goto nla_put_failure;
2802 static int fl_dump_key_options(struct sk_buff *skb, int enc_opt_type,
2803 struct flow_dissector_key_enc_opts *enc_opts)
2805 struct nlattr *nest;
2811 nest = nla_nest_start_noflag(skb, enc_opt_type);
2813 goto nla_put_failure;
2815 switch (enc_opts->dst_opt_type) {
2816 case TUNNEL_GENEVE_OPT:
2817 err = fl_dump_key_geneve_opt(skb, enc_opts);
2819 goto nla_put_failure;
2821 case TUNNEL_VXLAN_OPT:
2822 err = fl_dump_key_vxlan_opt(skb, enc_opts);
2824 goto nla_put_failure;
2826 case TUNNEL_ERSPAN_OPT:
2827 err = fl_dump_key_erspan_opt(skb, enc_opts);
2829 goto nla_put_failure;
2832 goto nla_put_failure;
2834 nla_nest_end(skb, nest);
2838 nla_nest_cancel(skb, nest);
2842 static int fl_dump_key_enc_opt(struct sk_buff *skb,
2843 struct flow_dissector_key_enc_opts *key_opts,
2844 struct flow_dissector_key_enc_opts *msk_opts)
2848 err = fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS, key_opts);
2852 return fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS_MASK, msk_opts);
2855 static int fl_dump_key(struct sk_buff *skb, struct net *net,
2856 struct fl_flow_key *key, struct fl_flow_key *mask)
2858 if (mask->meta.ingress_ifindex) {
2859 struct net_device *dev;
2861 dev = __dev_get_by_index(net, key->meta.ingress_ifindex);
2862 if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name))
2863 goto nla_put_failure;
2866 if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
2867 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
2868 sizeof(key->eth.dst)) ||
2869 fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
2870 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
2871 sizeof(key->eth.src)) ||
2872 fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE,
2873 &mask->basic.n_proto, TCA_FLOWER_UNSPEC,
2874 sizeof(key->basic.n_proto)))
2875 goto nla_put_failure;
2877 if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls))
2878 goto nla_put_failure;
2880 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_VLAN_ID,
2881 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, &mask->vlan))
2882 goto nla_put_failure;
2884 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_CVLAN_ID,
2885 TCA_FLOWER_KEY_CVLAN_PRIO,
2886 &key->cvlan, &mask->cvlan) ||
2887 (mask->cvlan.vlan_tpid &&
2888 nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
2889 key->cvlan.vlan_tpid)))
2890 goto nla_put_failure;
2892 if (mask->basic.n_proto) {
2893 if (mask->cvlan.vlan_eth_type) {
2894 if (nla_put_be16(skb, TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
2895 key->basic.n_proto))
2896 goto nla_put_failure;
2897 } else if (mask->vlan.vlan_eth_type) {
2898 if (nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
2899 key->vlan.vlan_eth_type))
2900 goto nla_put_failure;
2904 if ((key->basic.n_proto == htons(ETH_P_IP) ||
2905 key->basic.n_proto == htons(ETH_P_IPV6)) &&
2906 (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
2907 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
2908 sizeof(key->basic.ip_proto)) ||
2909 fl_dump_key_ip(skb, false, &key->ip, &mask->ip)))
2910 goto nla_put_failure;
2912 if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
2913 (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
2914 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
2915 sizeof(key->ipv4.src)) ||
2916 fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
2917 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
2918 sizeof(key->ipv4.dst))))
2919 goto nla_put_failure;
2920 else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
2921 (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
2922 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
2923 sizeof(key->ipv6.src)) ||
2924 fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
2925 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
2926 sizeof(key->ipv6.dst))))
2927 goto nla_put_failure;
2929 if (key->basic.ip_proto == IPPROTO_TCP &&
2930 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
2931 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
2932 sizeof(key->tp.src)) ||
2933 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
2934 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
2935 sizeof(key->tp.dst)) ||
2936 fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
2937 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
2938 sizeof(key->tcp.flags))))
2939 goto nla_put_failure;
2940 else if (key->basic.ip_proto == IPPROTO_UDP &&
2941 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
2942 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
2943 sizeof(key->tp.src)) ||
2944 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
2945 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
2946 sizeof(key->tp.dst))))
2947 goto nla_put_failure;
2948 else if (key->basic.ip_proto == IPPROTO_SCTP &&
2949 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
2950 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
2951 sizeof(key->tp.src)) ||
2952 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
2953 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
2954 sizeof(key->tp.dst))))
2955 goto nla_put_failure;
2956 else if (key->basic.n_proto == htons(ETH_P_IP) &&
2957 key->basic.ip_proto == IPPROTO_ICMP &&
2958 (fl_dump_key_val(skb, &key->icmp.type,
2959 TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type,
2960 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
2961 sizeof(key->icmp.type)) ||
2962 fl_dump_key_val(skb, &key->icmp.code,
2963 TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code,
2964 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
2965 sizeof(key->icmp.code))))
2966 goto nla_put_failure;
2967 else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
2968 key->basic.ip_proto == IPPROTO_ICMPV6 &&
2969 (fl_dump_key_val(skb, &key->icmp.type,
2970 TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type,
2971 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
2972 sizeof(key->icmp.type)) ||
2973 fl_dump_key_val(skb, &key->icmp.code,
2974 TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code,
2975 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
2976 sizeof(key->icmp.code))))
2977 goto nla_put_failure;
2978 else if ((key->basic.n_proto == htons(ETH_P_ARP) ||
2979 key->basic.n_proto == htons(ETH_P_RARP)) &&
2980 (fl_dump_key_val(skb, &key->arp.sip,
2981 TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip,
2982 TCA_FLOWER_KEY_ARP_SIP_MASK,
2983 sizeof(key->arp.sip)) ||
2984 fl_dump_key_val(skb, &key->arp.tip,
2985 TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip,
2986 TCA_FLOWER_KEY_ARP_TIP_MASK,
2987 sizeof(key->arp.tip)) ||
2988 fl_dump_key_val(skb, &key->arp.op,
2989 TCA_FLOWER_KEY_ARP_OP, &mask->arp.op,
2990 TCA_FLOWER_KEY_ARP_OP_MASK,
2991 sizeof(key->arp.op)) ||
2992 fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
2993 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
2994 sizeof(key->arp.sha)) ||
2995 fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
2996 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
2997 sizeof(key->arp.tha))))
2998 goto nla_put_failure;
3000 if ((key->basic.ip_proto == IPPROTO_TCP ||
3001 key->basic.ip_proto == IPPROTO_UDP ||
3002 key->basic.ip_proto == IPPROTO_SCTP) &&
3003 fl_dump_key_port_range(skb, key, mask))
3004 goto nla_put_failure;
3006 if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
3007 (fl_dump_key_val(skb, &key->enc_ipv4.src,
3008 TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src,
3009 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
3010 sizeof(key->enc_ipv4.src)) ||
3011 fl_dump_key_val(skb, &key->enc_ipv4.dst,
3012 TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst,
3013 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
3014 sizeof(key->enc_ipv4.dst))))
3015 goto nla_put_failure;
3016 else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
3017 (fl_dump_key_val(skb, &key->enc_ipv6.src,
3018 TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src,
3019 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
3020 sizeof(key->enc_ipv6.src)) ||
3021 fl_dump_key_val(skb, &key->enc_ipv6.dst,
3022 TCA_FLOWER_KEY_ENC_IPV6_DST,
3023 &mask->enc_ipv6.dst,
3024 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
3025 sizeof(key->enc_ipv6.dst))))
3026 goto nla_put_failure;
3028 if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID,
3029 &mask->enc_key_id, TCA_FLOWER_UNSPEC,
3030 sizeof(key->enc_key_id)) ||
3031 fl_dump_key_val(skb, &key->enc_tp.src,
3032 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
3034 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
3035 sizeof(key->enc_tp.src)) ||
3036 fl_dump_key_val(skb, &key->enc_tp.dst,
3037 TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
3039 TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
3040 sizeof(key->enc_tp.dst)) ||
3041 fl_dump_key_ip(skb, true, &key->enc_ip, &mask->enc_ip) ||
3042 fl_dump_key_enc_opt(skb, &key->enc_opts, &mask->enc_opts))
3043 goto nla_put_failure;
3045 if (fl_dump_key_ct(skb, &key->ct, &mask->ct))
3046 goto nla_put_failure;
3048 if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags))
3049 goto nla_put_failure;
3051 if (fl_dump_key_val(skb, &key->hash.hash, TCA_FLOWER_KEY_HASH,
3052 &mask->hash.hash, TCA_FLOWER_KEY_HASH_MASK,
3053 sizeof(key->hash.hash)))
3054 goto nla_put_failure;
3062 static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
3063 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
3065 struct cls_fl_filter *f = fh;
3066 struct nlattr *nest;
3067 struct fl_flow_key *key, *mask;
3073 t->tcm_handle = f->handle;
3075 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
3077 goto nla_put_failure;
3079 spin_lock(&tp->lock);
3081 if (f->res.classid &&
3082 nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid))
3083 goto nla_put_failure_locked;
3086 mask = &f->mask->key;
3087 skip_hw = tc_skip_hw(f->flags);
3089 if (fl_dump_key(skb, net, key, mask))
3090 goto nla_put_failure_locked;
3092 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
3093 goto nla_put_failure_locked;
3095 spin_unlock(&tp->lock);
3098 fl_hw_update_stats(tp, f, rtnl_held);
3100 if (nla_put_u32(skb, TCA_FLOWER_IN_HW_COUNT, f->in_hw_count))
3101 goto nla_put_failure;
3103 if (tcf_exts_dump(skb, &f->exts))
3104 goto nla_put_failure;
3106 nla_nest_end(skb, nest);
3108 if (tcf_exts_dump_stats(skb, &f->exts) < 0)
3109 goto nla_put_failure;
3113 nla_put_failure_locked:
3114 spin_unlock(&tp->lock);
3116 nla_nest_cancel(skb, nest);
3120 static int fl_terse_dump(struct net *net, struct tcf_proto *tp, void *fh,
3121 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
3123 struct cls_fl_filter *f = fh;
3124 struct nlattr *nest;
3130 t->tcm_handle = f->handle;
3132 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
3134 goto nla_put_failure;
3136 spin_lock(&tp->lock);
3138 skip_hw = tc_skip_hw(f->flags);
3140 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
3141 goto nla_put_failure_locked;
3143 spin_unlock(&tp->lock);
3146 fl_hw_update_stats(tp, f, rtnl_held);
3148 if (tcf_exts_terse_dump(skb, &f->exts))
3149 goto nla_put_failure;
3151 nla_nest_end(skb, nest);
3155 nla_put_failure_locked:
3156 spin_unlock(&tp->lock);
3158 nla_nest_cancel(skb, nest);
3162 static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv)
3164 struct fl_flow_tmplt *tmplt = tmplt_priv;
3165 struct fl_flow_key *key, *mask;
3166 struct nlattr *nest;
3168 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
3170 goto nla_put_failure;
3172 key = &tmplt->dummy_key;
3173 mask = &tmplt->mask;
3175 if (fl_dump_key(skb, net, key, mask))
3176 goto nla_put_failure;
3178 nla_nest_end(skb, nest);
3183 nla_nest_cancel(skb, nest);
3187 static void fl_bind_class(void *fh, u32 classid, unsigned long cl, void *q,
3190 struct cls_fl_filter *f = fh;
3192 if (f && f->res.classid == classid) {
3194 __tcf_bind_filter(q, &f->res, base);
3196 __tcf_unbind_filter(q, &f->res);
3200 static bool fl_delete_empty(struct tcf_proto *tp)
3202 struct cls_fl_head *head = fl_head_dereference(tp);
3204 spin_lock(&tp->lock);
3205 tp->deleting = idr_is_empty(&head->handle_idr);
3206 spin_unlock(&tp->lock);
3208 return tp->deleting;
3211 static struct tcf_proto_ops cls_fl_ops __read_mostly = {
3213 .classify = fl_classify,
3215 .destroy = fl_destroy,
3218 .change = fl_change,
3219 .delete = fl_delete,
3220 .delete_empty = fl_delete_empty,
3222 .reoffload = fl_reoffload,
3223 .hw_add = fl_hw_add,
3224 .hw_del = fl_hw_del,
3226 .terse_dump = fl_terse_dump,
3227 .bind_class = fl_bind_class,
3228 .tmplt_create = fl_tmplt_create,
3229 .tmplt_destroy = fl_tmplt_destroy,
3230 .tmplt_dump = fl_tmplt_dump,
3231 .owner = THIS_MODULE,
3232 .flags = TCF_PROTO_OPS_DOIT_UNLOCKED,
3235 static int __init cls_fl_init(void)
3237 return register_tcf_proto_ops(&cls_fl_ops);
3240 static void __exit cls_fl_exit(void)
3242 unregister_tcf_proto_ops(&cls_fl_ops);
3245 module_init(cls_fl_init);
3246 module_exit(cls_fl_exit);
3248 MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
3249 MODULE_DESCRIPTION("Flower classifier");
3250 MODULE_LICENSE("GPL v2");