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>
23 #include <net/flow_dissector.h>
24 #include <net/geneve.h>
25 #include <net/vxlan.h>
26 #include <net/erspan.h>
29 #include <net/dst_metadata.h>
31 #include <uapi/linux/netfilter/nf_conntrack_common.h>
33 #define TCA_FLOWER_KEY_CT_FLAGS_MAX \
34 ((__TCA_FLOWER_KEY_CT_FLAGS_MAX - 1) << 1)
35 #define TCA_FLOWER_KEY_CT_FLAGS_MASK \
36 (TCA_FLOWER_KEY_CT_FLAGS_MAX - 1)
39 struct flow_dissector_key_meta meta;
40 struct flow_dissector_key_control control;
41 struct flow_dissector_key_control enc_control;
42 struct flow_dissector_key_basic basic;
43 struct flow_dissector_key_eth_addrs eth;
44 struct flow_dissector_key_vlan vlan;
45 struct flow_dissector_key_vlan cvlan;
47 struct flow_dissector_key_ipv4_addrs ipv4;
48 struct flow_dissector_key_ipv6_addrs ipv6;
50 struct flow_dissector_key_ports tp;
51 struct flow_dissector_key_icmp icmp;
52 struct flow_dissector_key_arp arp;
53 struct flow_dissector_key_keyid enc_key_id;
55 struct flow_dissector_key_ipv4_addrs enc_ipv4;
56 struct flow_dissector_key_ipv6_addrs enc_ipv6;
58 struct flow_dissector_key_ports enc_tp;
59 struct flow_dissector_key_mpls mpls;
60 struct flow_dissector_key_tcp tcp;
61 struct flow_dissector_key_ip ip;
62 struct flow_dissector_key_ip enc_ip;
63 struct flow_dissector_key_enc_opts enc_opts;
65 struct flow_dissector_key_ports tp;
67 struct flow_dissector_key_ports tp_min;
68 struct flow_dissector_key_ports tp_max;
71 struct flow_dissector_key_ct ct;
72 struct flow_dissector_key_hash hash;
73 } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
75 struct fl_flow_mask_range {
76 unsigned short int start;
77 unsigned short int end;
81 struct fl_flow_key key;
82 struct fl_flow_mask_range range;
84 struct rhash_head ht_node;
86 struct rhashtable_params filter_ht_params;
87 struct flow_dissector dissector;
88 struct list_head filters;
89 struct rcu_work rwork;
90 struct list_head list;
94 struct fl_flow_tmplt {
95 struct fl_flow_key dummy_key;
96 struct fl_flow_key mask;
97 struct flow_dissector dissector;
98 struct tcf_chain *chain;
102 struct rhashtable ht;
103 spinlock_t masks_lock; /* Protect masks list */
104 struct list_head masks;
105 struct list_head hw_filters;
106 struct rcu_work rwork;
107 struct idr handle_idr;
110 struct cls_fl_filter {
111 struct fl_flow_mask *mask;
112 struct rhash_head ht_node;
113 struct fl_flow_key mkey;
114 struct tcf_exts exts;
115 struct tcf_result res;
116 struct fl_flow_key key;
117 struct list_head list;
118 struct list_head hw_list;
122 struct rcu_work rwork;
123 struct net_device *hw_dev;
124 /* Flower classifier is unlocked, which means that its reference counter
125 * can be changed concurrently without any kind of external
126 * synchronization. Use atomic reference counter to be concurrency-safe.
132 static const struct rhashtable_params mask_ht_params = {
133 .key_offset = offsetof(struct fl_flow_mask, key),
134 .key_len = sizeof(struct fl_flow_key),
135 .head_offset = offsetof(struct fl_flow_mask, ht_node),
136 .automatic_shrinking = true,
139 static unsigned short int fl_mask_range(const struct fl_flow_mask *mask)
141 return mask->range.end - mask->range.start;
144 static void fl_mask_update_range(struct fl_flow_mask *mask)
146 const u8 *bytes = (const u8 *) &mask->key;
147 size_t size = sizeof(mask->key);
148 size_t i, first = 0, last;
150 for (i = 0; i < size; i++) {
157 for (i = size - 1; i != first; i--) {
163 mask->range.start = rounddown(first, sizeof(long));
164 mask->range.end = roundup(last + 1, sizeof(long));
167 static void *fl_key_get_start(struct fl_flow_key *key,
168 const struct fl_flow_mask *mask)
170 return (u8 *) key + mask->range.start;
173 static void fl_set_masked_key(struct fl_flow_key *mkey, struct fl_flow_key *key,
174 struct fl_flow_mask *mask)
176 const long *lkey = fl_key_get_start(key, mask);
177 const long *lmask = fl_key_get_start(&mask->key, mask);
178 long *lmkey = fl_key_get_start(mkey, mask);
181 for (i = 0; i < fl_mask_range(mask); i += sizeof(long))
182 *lmkey++ = *lkey++ & *lmask++;
185 static bool fl_mask_fits_tmplt(struct fl_flow_tmplt *tmplt,
186 struct fl_flow_mask *mask)
188 const long *lmask = fl_key_get_start(&mask->key, mask);
194 ltmplt = fl_key_get_start(&tmplt->mask, mask);
195 for (i = 0; i < fl_mask_range(mask); i += sizeof(long)) {
196 if (~*ltmplt++ & *lmask++)
202 static void fl_clear_masked_range(struct fl_flow_key *key,
203 struct fl_flow_mask *mask)
205 memset(fl_key_get_start(key, mask), 0, fl_mask_range(mask));
208 static bool fl_range_port_dst_cmp(struct cls_fl_filter *filter,
209 struct fl_flow_key *key,
210 struct fl_flow_key *mkey)
212 __be16 min_mask, max_mask, min_val, max_val;
214 min_mask = htons(filter->mask->key.tp_range.tp_min.dst);
215 max_mask = htons(filter->mask->key.tp_range.tp_max.dst);
216 min_val = htons(filter->key.tp_range.tp_min.dst);
217 max_val = htons(filter->key.tp_range.tp_max.dst);
219 if (min_mask && max_mask) {
220 if (htons(key->tp_range.tp.dst) < min_val ||
221 htons(key->tp_range.tp.dst) > max_val)
224 /* skb does not have min and max values */
225 mkey->tp_range.tp_min.dst = filter->mkey.tp_range.tp_min.dst;
226 mkey->tp_range.tp_max.dst = filter->mkey.tp_range.tp_max.dst;
231 static bool fl_range_port_src_cmp(struct cls_fl_filter *filter,
232 struct fl_flow_key *key,
233 struct fl_flow_key *mkey)
235 __be16 min_mask, max_mask, min_val, max_val;
237 min_mask = htons(filter->mask->key.tp_range.tp_min.src);
238 max_mask = htons(filter->mask->key.tp_range.tp_max.src);
239 min_val = htons(filter->key.tp_range.tp_min.src);
240 max_val = htons(filter->key.tp_range.tp_max.src);
242 if (min_mask && max_mask) {
243 if (htons(key->tp_range.tp.src) < min_val ||
244 htons(key->tp_range.tp.src) > max_val)
247 /* skb does not have min and max values */
248 mkey->tp_range.tp_min.src = filter->mkey.tp_range.tp_min.src;
249 mkey->tp_range.tp_max.src = filter->mkey.tp_range.tp_max.src;
254 static struct cls_fl_filter *__fl_lookup(struct fl_flow_mask *mask,
255 struct fl_flow_key *mkey)
257 return rhashtable_lookup_fast(&mask->ht, fl_key_get_start(mkey, mask),
258 mask->filter_ht_params);
261 static struct cls_fl_filter *fl_lookup_range(struct fl_flow_mask *mask,
262 struct fl_flow_key *mkey,
263 struct fl_flow_key *key)
265 struct cls_fl_filter *filter, *f;
267 list_for_each_entry_rcu(filter, &mask->filters, list) {
268 if (!fl_range_port_dst_cmp(filter, key, mkey))
271 if (!fl_range_port_src_cmp(filter, key, mkey))
274 f = __fl_lookup(mask, mkey);
281 static noinline_for_stack
282 struct cls_fl_filter *fl_mask_lookup(struct fl_flow_mask *mask, struct fl_flow_key *key)
284 struct fl_flow_key mkey;
286 fl_set_masked_key(&mkey, key, mask);
287 if ((mask->flags & TCA_FLOWER_MASK_FLAGS_RANGE))
288 return fl_lookup_range(mask, &mkey, key);
290 return __fl_lookup(mask, &mkey);
293 static u16 fl_ct_info_to_flower_map[] = {
294 [IP_CT_ESTABLISHED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
295 TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED,
296 [IP_CT_RELATED] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
297 TCA_FLOWER_KEY_CT_FLAGS_RELATED,
298 [IP_CT_ESTABLISHED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
299 TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED |
300 TCA_FLOWER_KEY_CT_FLAGS_REPLY,
301 [IP_CT_RELATED_REPLY] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
302 TCA_FLOWER_KEY_CT_FLAGS_RELATED |
303 TCA_FLOWER_KEY_CT_FLAGS_REPLY,
304 [IP_CT_NEW] = TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
305 TCA_FLOWER_KEY_CT_FLAGS_NEW,
308 static int fl_classify(struct sk_buff *skb, const struct tcf_proto *tp,
309 struct tcf_result *res)
311 struct cls_fl_head *head = rcu_dereference_bh(tp->root);
312 bool post_ct = qdisc_skb_cb(skb)->post_ct;
313 struct fl_flow_key skb_key;
314 struct fl_flow_mask *mask;
315 struct cls_fl_filter *f;
317 list_for_each_entry_rcu(mask, &head->masks, list) {
318 flow_dissector_init_keys(&skb_key.control, &skb_key.basic);
319 fl_clear_masked_range(&skb_key, mask);
321 skb_flow_dissect_meta(skb, &mask->dissector, &skb_key);
322 /* skb_flow_dissect() does not set n_proto in case an unknown
323 * protocol, so do it rather here.
325 skb_key.basic.n_proto = skb_protocol(skb, false);
326 skb_flow_dissect_tunnel_info(skb, &mask->dissector, &skb_key);
327 skb_flow_dissect_ct(skb, &mask->dissector, &skb_key,
328 fl_ct_info_to_flower_map,
329 ARRAY_SIZE(fl_ct_info_to_flower_map),
331 skb_flow_dissect_hash(skb, &mask->dissector, &skb_key);
332 skb_flow_dissect(skb, &mask->dissector, &skb_key, 0);
334 f = fl_mask_lookup(mask, &skb_key);
335 if (f && !tc_skip_sw(f->flags)) {
337 return tcf_exts_exec(skb, &f->exts, res);
343 static int fl_init(struct tcf_proto *tp)
345 struct cls_fl_head *head;
347 head = kzalloc(sizeof(*head), GFP_KERNEL);
351 spin_lock_init(&head->masks_lock);
352 INIT_LIST_HEAD_RCU(&head->masks);
353 INIT_LIST_HEAD(&head->hw_filters);
354 rcu_assign_pointer(tp->root, head);
355 idr_init(&head->handle_idr);
357 return rhashtable_init(&head->ht, &mask_ht_params);
360 static void fl_mask_free(struct fl_flow_mask *mask, bool mask_init_done)
362 /* temporary masks don't have their filters list and ht initialized */
363 if (mask_init_done) {
364 WARN_ON(!list_empty(&mask->filters));
365 rhashtable_destroy(&mask->ht);
370 static void fl_mask_free_work(struct work_struct *work)
372 struct fl_flow_mask *mask = container_of(to_rcu_work(work),
373 struct fl_flow_mask, rwork);
375 fl_mask_free(mask, true);
378 static void fl_uninit_mask_free_work(struct work_struct *work)
380 struct fl_flow_mask *mask = container_of(to_rcu_work(work),
381 struct fl_flow_mask, rwork);
383 fl_mask_free(mask, false);
386 static bool fl_mask_put(struct cls_fl_head *head, struct fl_flow_mask *mask)
388 if (!refcount_dec_and_test(&mask->refcnt))
391 rhashtable_remove_fast(&head->ht, &mask->ht_node, mask_ht_params);
393 spin_lock(&head->masks_lock);
394 list_del_rcu(&mask->list);
395 spin_unlock(&head->masks_lock);
397 tcf_queue_work(&mask->rwork, fl_mask_free_work);
402 static struct cls_fl_head *fl_head_dereference(struct tcf_proto *tp)
404 /* Flower classifier only changes root pointer during init and destroy.
405 * Users must obtain reference to tcf_proto instance before calling its
406 * API, so tp->root pointer is protected from concurrent call to
407 * fl_destroy() by reference counting.
409 return rcu_dereference_raw(tp->root);
412 static void __fl_destroy_filter(struct cls_fl_filter *f)
414 tcf_exts_destroy(&f->exts);
415 tcf_exts_put_net(&f->exts);
419 static void fl_destroy_filter_work(struct work_struct *work)
421 struct cls_fl_filter *f = container_of(to_rcu_work(work),
422 struct cls_fl_filter, rwork);
424 __fl_destroy_filter(f);
427 static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f,
428 bool rtnl_held, struct netlink_ext_ack *extack)
430 struct tcf_block *block = tp->chain->block;
431 struct flow_cls_offload cls_flower = {};
433 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
434 cls_flower.command = FLOW_CLS_DESTROY;
435 cls_flower.cookie = (unsigned long) f;
437 tc_setup_cb_destroy(block, tp, TC_SETUP_CLSFLOWER, &cls_flower, false,
438 &f->flags, &f->in_hw_count, rtnl_held);
442 static int fl_hw_replace_filter(struct tcf_proto *tp,
443 struct cls_fl_filter *f, bool rtnl_held,
444 struct netlink_ext_ack *extack)
446 struct tcf_block *block = tp->chain->block;
447 struct flow_cls_offload cls_flower = {};
448 bool skip_sw = tc_skip_sw(f->flags);
451 cls_flower.rule = flow_rule_alloc(tcf_exts_num_actions(&f->exts));
452 if (!cls_flower.rule)
455 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, extack);
456 cls_flower.command = FLOW_CLS_REPLACE;
457 cls_flower.cookie = (unsigned long) f;
458 cls_flower.rule->match.dissector = &f->mask->dissector;
459 cls_flower.rule->match.mask = &f->mask->key;
460 cls_flower.rule->match.key = &f->mkey;
461 cls_flower.classid = f->res.classid;
463 err = tc_setup_flow_action(&cls_flower.rule->action, &f->exts);
465 kfree(cls_flower.rule);
467 NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action");
473 err = tc_setup_cb_add(block, tp, TC_SETUP_CLSFLOWER, &cls_flower,
474 skip_sw, &f->flags, &f->in_hw_count, rtnl_held);
475 tc_cleanup_flow_action(&cls_flower.rule->action);
476 kfree(cls_flower.rule);
479 fl_hw_destroy_filter(tp, f, rtnl_held, NULL);
483 if (skip_sw && !(f->flags & TCA_CLS_FLAGS_IN_HW))
489 static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f,
492 struct tcf_block *block = tp->chain->block;
493 struct flow_cls_offload cls_flower = {};
495 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags, NULL);
496 cls_flower.command = FLOW_CLS_STATS;
497 cls_flower.cookie = (unsigned long) f;
498 cls_flower.classid = f->res.classid;
500 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false,
503 tcf_exts_stats_update(&f->exts, cls_flower.stats.bytes,
504 cls_flower.stats.pkts,
505 cls_flower.stats.drops,
506 cls_flower.stats.lastused,
507 cls_flower.stats.used_hw_stats,
508 cls_flower.stats.used_hw_stats_valid);
511 static void __fl_put(struct cls_fl_filter *f)
513 if (!refcount_dec_and_test(&f->refcnt))
516 if (tcf_exts_get_net(&f->exts))
517 tcf_queue_work(&f->rwork, fl_destroy_filter_work);
519 __fl_destroy_filter(f);
522 static struct cls_fl_filter *__fl_get(struct cls_fl_head *head, u32 handle)
524 struct cls_fl_filter *f;
527 f = idr_find(&head->handle_idr, handle);
528 if (f && !refcount_inc_not_zero(&f->refcnt))
535 static int __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f,
536 bool *last, bool rtnl_held,
537 struct netlink_ext_ack *extack)
539 struct cls_fl_head *head = fl_head_dereference(tp);
543 spin_lock(&tp->lock);
545 spin_unlock(&tp->lock);
550 rhashtable_remove_fast(&f->mask->ht, &f->ht_node,
551 f->mask->filter_ht_params);
552 idr_remove(&head->handle_idr, f->handle);
553 list_del_rcu(&f->list);
554 spin_unlock(&tp->lock);
556 *last = fl_mask_put(head, f->mask);
557 if (!tc_skip_hw(f->flags))
558 fl_hw_destroy_filter(tp, f, rtnl_held, extack);
559 tcf_unbind_filter(tp, &f->res);
565 static void fl_destroy_sleepable(struct work_struct *work)
567 struct cls_fl_head *head = container_of(to_rcu_work(work),
571 rhashtable_destroy(&head->ht);
573 module_put(THIS_MODULE);
576 static void fl_destroy(struct tcf_proto *tp, bool rtnl_held,
577 struct netlink_ext_ack *extack)
579 struct cls_fl_head *head = fl_head_dereference(tp);
580 struct fl_flow_mask *mask, *next_mask;
581 struct cls_fl_filter *f, *next;
584 list_for_each_entry_safe(mask, next_mask, &head->masks, list) {
585 list_for_each_entry_safe(f, next, &mask->filters, list) {
586 __fl_delete(tp, f, &last, rtnl_held, extack);
591 idr_destroy(&head->handle_idr);
593 __module_get(THIS_MODULE);
594 tcf_queue_work(&head->rwork, fl_destroy_sleepable);
597 static void fl_put(struct tcf_proto *tp, void *arg)
599 struct cls_fl_filter *f = arg;
604 static void *fl_get(struct tcf_proto *tp, u32 handle)
606 struct cls_fl_head *head = fl_head_dereference(tp);
608 return __fl_get(head, handle);
611 static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
612 [TCA_FLOWER_UNSPEC] = { .type = NLA_UNSPEC },
613 [TCA_FLOWER_CLASSID] = { .type = NLA_U32 },
614 [TCA_FLOWER_INDEV] = { .type = NLA_STRING,
616 [TCA_FLOWER_KEY_ETH_DST] = { .len = ETH_ALEN },
617 [TCA_FLOWER_KEY_ETH_DST_MASK] = { .len = ETH_ALEN },
618 [TCA_FLOWER_KEY_ETH_SRC] = { .len = ETH_ALEN },
619 [TCA_FLOWER_KEY_ETH_SRC_MASK] = { .len = ETH_ALEN },
620 [TCA_FLOWER_KEY_ETH_TYPE] = { .type = NLA_U16 },
621 [TCA_FLOWER_KEY_IP_PROTO] = { .type = NLA_U8 },
622 [TCA_FLOWER_KEY_IPV4_SRC] = { .type = NLA_U32 },
623 [TCA_FLOWER_KEY_IPV4_SRC_MASK] = { .type = NLA_U32 },
624 [TCA_FLOWER_KEY_IPV4_DST] = { .type = NLA_U32 },
625 [TCA_FLOWER_KEY_IPV4_DST_MASK] = { .type = NLA_U32 },
626 [TCA_FLOWER_KEY_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
627 [TCA_FLOWER_KEY_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
628 [TCA_FLOWER_KEY_IPV6_DST] = { .len = sizeof(struct in6_addr) },
629 [TCA_FLOWER_KEY_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
630 [TCA_FLOWER_KEY_TCP_SRC] = { .type = NLA_U16 },
631 [TCA_FLOWER_KEY_TCP_DST] = { .type = NLA_U16 },
632 [TCA_FLOWER_KEY_UDP_SRC] = { .type = NLA_U16 },
633 [TCA_FLOWER_KEY_UDP_DST] = { .type = NLA_U16 },
634 [TCA_FLOWER_KEY_VLAN_ID] = { .type = NLA_U16 },
635 [TCA_FLOWER_KEY_VLAN_PRIO] = { .type = NLA_U8 },
636 [TCA_FLOWER_KEY_VLAN_ETH_TYPE] = { .type = NLA_U16 },
637 [TCA_FLOWER_KEY_ENC_KEY_ID] = { .type = NLA_U32 },
638 [TCA_FLOWER_KEY_ENC_IPV4_SRC] = { .type = NLA_U32 },
639 [TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] = { .type = NLA_U32 },
640 [TCA_FLOWER_KEY_ENC_IPV4_DST] = { .type = NLA_U32 },
641 [TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] = { .type = NLA_U32 },
642 [TCA_FLOWER_KEY_ENC_IPV6_SRC] = { .len = sizeof(struct in6_addr) },
643 [TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK] = { .len = sizeof(struct in6_addr) },
644 [TCA_FLOWER_KEY_ENC_IPV6_DST] = { .len = sizeof(struct in6_addr) },
645 [TCA_FLOWER_KEY_ENC_IPV6_DST_MASK] = { .len = sizeof(struct in6_addr) },
646 [TCA_FLOWER_KEY_TCP_SRC_MASK] = { .type = NLA_U16 },
647 [TCA_FLOWER_KEY_TCP_DST_MASK] = { .type = NLA_U16 },
648 [TCA_FLOWER_KEY_UDP_SRC_MASK] = { .type = NLA_U16 },
649 [TCA_FLOWER_KEY_UDP_DST_MASK] = { .type = NLA_U16 },
650 [TCA_FLOWER_KEY_SCTP_SRC_MASK] = { .type = NLA_U16 },
651 [TCA_FLOWER_KEY_SCTP_DST_MASK] = { .type = NLA_U16 },
652 [TCA_FLOWER_KEY_SCTP_SRC] = { .type = NLA_U16 },
653 [TCA_FLOWER_KEY_SCTP_DST] = { .type = NLA_U16 },
654 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT] = { .type = NLA_U16 },
655 [TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK] = { .type = NLA_U16 },
656 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT] = { .type = NLA_U16 },
657 [TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK] = { .type = NLA_U16 },
658 [TCA_FLOWER_KEY_FLAGS] = { .type = NLA_U32 },
659 [TCA_FLOWER_KEY_FLAGS_MASK] = { .type = NLA_U32 },
660 [TCA_FLOWER_KEY_ICMPV4_TYPE] = { .type = NLA_U8 },
661 [TCA_FLOWER_KEY_ICMPV4_TYPE_MASK] = { .type = NLA_U8 },
662 [TCA_FLOWER_KEY_ICMPV4_CODE] = { .type = NLA_U8 },
663 [TCA_FLOWER_KEY_ICMPV4_CODE_MASK] = { .type = NLA_U8 },
664 [TCA_FLOWER_KEY_ICMPV6_TYPE] = { .type = NLA_U8 },
665 [TCA_FLOWER_KEY_ICMPV6_TYPE_MASK] = { .type = NLA_U8 },
666 [TCA_FLOWER_KEY_ICMPV6_CODE] = { .type = NLA_U8 },
667 [TCA_FLOWER_KEY_ICMPV6_CODE_MASK] = { .type = NLA_U8 },
668 [TCA_FLOWER_KEY_ARP_SIP] = { .type = NLA_U32 },
669 [TCA_FLOWER_KEY_ARP_SIP_MASK] = { .type = NLA_U32 },
670 [TCA_FLOWER_KEY_ARP_TIP] = { .type = NLA_U32 },
671 [TCA_FLOWER_KEY_ARP_TIP_MASK] = { .type = NLA_U32 },
672 [TCA_FLOWER_KEY_ARP_OP] = { .type = NLA_U8 },
673 [TCA_FLOWER_KEY_ARP_OP_MASK] = { .type = NLA_U8 },
674 [TCA_FLOWER_KEY_ARP_SHA] = { .len = ETH_ALEN },
675 [TCA_FLOWER_KEY_ARP_SHA_MASK] = { .len = ETH_ALEN },
676 [TCA_FLOWER_KEY_ARP_THA] = { .len = ETH_ALEN },
677 [TCA_FLOWER_KEY_ARP_THA_MASK] = { .len = ETH_ALEN },
678 [TCA_FLOWER_KEY_MPLS_TTL] = { .type = NLA_U8 },
679 [TCA_FLOWER_KEY_MPLS_BOS] = { .type = NLA_U8 },
680 [TCA_FLOWER_KEY_MPLS_TC] = { .type = NLA_U8 },
681 [TCA_FLOWER_KEY_MPLS_LABEL] = { .type = NLA_U32 },
682 [TCA_FLOWER_KEY_MPLS_OPTS] = { .type = NLA_NESTED },
683 [TCA_FLOWER_KEY_TCP_FLAGS] = { .type = NLA_U16 },
684 [TCA_FLOWER_KEY_TCP_FLAGS_MASK] = { .type = NLA_U16 },
685 [TCA_FLOWER_KEY_IP_TOS] = { .type = NLA_U8 },
686 [TCA_FLOWER_KEY_IP_TOS_MASK] = { .type = NLA_U8 },
687 [TCA_FLOWER_KEY_IP_TTL] = { .type = NLA_U8 },
688 [TCA_FLOWER_KEY_IP_TTL_MASK] = { .type = NLA_U8 },
689 [TCA_FLOWER_KEY_CVLAN_ID] = { .type = NLA_U16 },
690 [TCA_FLOWER_KEY_CVLAN_PRIO] = { .type = NLA_U8 },
691 [TCA_FLOWER_KEY_CVLAN_ETH_TYPE] = { .type = NLA_U16 },
692 [TCA_FLOWER_KEY_ENC_IP_TOS] = { .type = NLA_U8 },
693 [TCA_FLOWER_KEY_ENC_IP_TOS_MASK] = { .type = NLA_U8 },
694 [TCA_FLOWER_KEY_ENC_IP_TTL] = { .type = NLA_U8 },
695 [TCA_FLOWER_KEY_ENC_IP_TTL_MASK] = { .type = NLA_U8 },
696 [TCA_FLOWER_KEY_ENC_OPTS] = { .type = NLA_NESTED },
697 [TCA_FLOWER_KEY_ENC_OPTS_MASK] = { .type = NLA_NESTED },
698 [TCA_FLOWER_KEY_CT_STATE] =
699 NLA_POLICY_MASK(NLA_U16, TCA_FLOWER_KEY_CT_FLAGS_MASK),
700 [TCA_FLOWER_KEY_CT_STATE_MASK] =
701 NLA_POLICY_MASK(NLA_U16, TCA_FLOWER_KEY_CT_FLAGS_MASK),
702 [TCA_FLOWER_KEY_CT_ZONE] = { .type = NLA_U16 },
703 [TCA_FLOWER_KEY_CT_ZONE_MASK] = { .type = NLA_U16 },
704 [TCA_FLOWER_KEY_CT_MARK] = { .type = NLA_U32 },
705 [TCA_FLOWER_KEY_CT_MARK_MASK] = { .type = NLA_U32 },
706 [TCA_FLOWER_KEY_CT_LABELS] = { .type = NLA_BINARY,
707 .len = 128 / BITS_PER_BYTE },
708 [TCA_FLOWER_KEY_CT_LABELS_MASK] = { .type = NLA_BINARY,
709 .len = 128 / BITS_PER_BYTE },
710 [TCA_FLOWER_FLAGS] = { .type = NLA_U32 },
711 [TCA_FLOWER_KEY_HASH] = { .type = NLA_U32 },
712 [TCA_FLOWER_KEY_HASH_MASK] = { .type = NLA_U32 },
716 static const struct nla_policy
717 enc_opts_policy[TCA_FLOWER_KEY_ENC_OPTS_MAX + 1] = {
718 [TCA_FLOWER_KEY_ENC_OPTS_UNSPEC] = {
719 .strict_start_type = TCA_FLOWER_KEY_ENC_OPTS_VXLAN },
720 [TCA_FLOWER_KEY_ENC_OPTS_GENEVE] = { .type = NLA_NESTED },
721 [TCA_FLOWER_KEY_ENC_OPTS_VXLAN] = { .type = NLA_NESTED },
722 [TCA_FLOWER_KEY_ENC_OPTS_ERSPAN] = { .type = NLA_NESTED },
725 static const struct nla_policy
726 geneve_opt_policy[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1] = {
727 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] = { .type = NLA_U16 },
728 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] = { .type = NLA_U8 },
729 [TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA] = { .type = NLA_BINARY,
733 static const struct nla_policy
734 vxlan_opt_policy[TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX + 1] = {
735 [TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP] = { .type = NLA_U32 },
738 static const struct nla_policy
739 erspan_opt_policy[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX + 1] = {
740 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER] = { .type = NLA_U8 },
741 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX] = { .type = NLA_U32 },
742 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR] = { .type = NLA_U8 },
743 [TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID] = { .type = NLA_U8 },
746 static const struct nla_policy
747 mpls_stack_entry_policy[TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX + 1] = {
748 [TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH] = { .type = NLA_U8 },
749 [TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL] = { .type = NLA_U8 },
750 [TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS] = { .type = NLA_U8 },
751 [TCA_FLOWER_KEY_MPLS_OPT_LSE_TC] = { .type = NLA_U8 },
752 [TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL] = { .type = NLA_U32 },
755 static void fl_set_key_val(struct nlattr **tb,
756 void *val, int val_type,
757 void *mask, int mask_type, int len)
761 nla_memcpy(val, tb[val_type], len);
762 if (mask_type == TCA_FLOWER_UNSPEC || !tb[mask_type])
763 memset(mask, 0xff, len);
765 nla_memcpy(mask, tb[mask_type], len);
768 static int fl_set_key_port_range(struct nlattr **tb, struct fl_flow_key *key,
769 struct fl_flow_key *mask,
770 struct netlink_ext_ack *extack)
772 fl_set_key_val(tb, &key->tp_range.tp_min.dst,
773 TCA_FLOWER_KEY_PORT_DST_MIN, &mask->tp_range.tp_min.dst,
774 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_min.dst));
775 fl_set_key_val(tb, &key->tp_range.tp_max.dst,
776 TCA_FLOWER_KEY_PORT_DST_MAX, &mask->tp_range.tp_max.dst,
777 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_max.dst));
778 fl_set_key_val(tb, &key->tp_range.tp_min.src,
779 TCA_FLOWER_KEY_PORT_SRC_MIN, &mask->tp_range.tp_min.src,
780 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_min.src));
781 fl_set_key_val(tb, &key->tp_range.tp_max.src,
782 TCA_FLOWER_KEY_PORT_SRC_MAX, &mask->tp_range.tp_max.src,
783 TCA_FLOWER_UNSPEC, sizeof(key->tp_range.tp_max.src));
785 if (mask->tp_range.tp_min.dst && mask->tp_range.tp_max.dst &&
786 htons(key->tp_range.tp_max.dst) <=
787 htons(key->tp_range.tp_min.dst)) {
788 NL_SET_ERR_MSG_ATTR(extack,
789 tb[TCA_FLOWER_KEY_PORT_DST_MIN],
790 "Invalid destination port range (min must be strictly smaller than max)");
793 if (mask->tp_range.tp_min.src && mask->tp_range.tp_max.src &&
794 htons(key->tp_range.tp_max.src) <=
795 htons(key->tp_range.tp_min.src)) {
796 NL_SET_ERR_MSG_ATTR(extack,
797 tb[TCA_FLOWER_KEY_PORT_SRC_MIN],
798 "Invalid source port range (min must be strictly smaller than max)");
805 static int fl_set_key_mpls_lse(const struct nlattr *nla_lse,
806 struct flow_dissector_key_mpls *key_val,
807 struct flow_dissector_key_mpls *key_mask,
808 struct netlink_ext_ack *extack)
810 struct nlattr *tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX + 1];
811 struct flow_dissector_mpls_lse *lse_mask;
812 struct flow_dissector_mpls_lse *lse_val;
817 err = nla_parse_nested(tb, TCA_FLOWER_KEY_MPLS_OPT_LSE_MAX, nla_lse,
818 mpls_stack_entry_policy, extack);
822 if (!tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH]) {
823 NL_SET_ERR_MSG(extack, "Missing MPLS option \"depth\"");
827 depth = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH]);
829 /* LSE depth starts at 1, for consistency with terminology used by
830 * RFC 3031 (section 3.9), where depth 0 refers to unlabeled packets.
832 if (depth < 1 || depth > FLOW_DIS_MPLS_MAX) {
833 NL_SET_ERR_MSG_ATTR(extack,
834 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH],
835 "Invalid MPLS depth");
838 lse_index = depth - 1;
840 dissector_set_mpls_lse(key_val, lse_index);
841 dissector_set_mpls_lse(key_mask, lse_index);
843 lse_val = &key_val->ls[lse_index];
844 lse_mask = &key_mask->ls[lse_index];
846 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL]) {
847 lse_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL]);
848 lse_mask->mpls_ttl = MPLS_TTL_MASK;
850 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS]) {
851 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS]);
853 if (bos & ~MPLS_BOS_MASK) {
854 NL_SET_ERR_MSG_ATTR(extack,
855 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS],
856 "Bottom Of Stack (BOS) must be 0 or 1");
859 lse_val->mpls_bos = bos;
860 lse_mask->mpls_bos = MPLS_BOS_MASK;
862 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC]) {
863 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC]);
865 if (tc & ~MPLS_TC_MASK) {
866 NL_SET_ERR_MSG_ATTR(extack,
867 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_TC],
868 "Traffic Class (TC) must be between 0 and 7");
871 lse_val->mpls_tc = tc;
872 lse_mask->mpls_tc = MPLS_TC_MASK;
874 if (tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL]) {
875 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL]);
877 if (label & ~MPLS_LABEL_MASK) {
878 NL_SET_ERR_MSG_ATTR(extack,
879 tb[TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL],
880 "Label must be between 0 and 1048575");
883 lse_val->mpls_label = label;
884 lse_mask->mpls_label = MPLS_LABEL_MASK;
890 static int fl_set_key_mpls_opts(const struct nlattr *nla_mpls_opts,
891 struct flow_dissector_key_mpls *key_val,
892 struct flow_dissector_key_mpls *key_mask,
893 struct netlink_ext_ack *extack)
895 struct nlattr *nla_lse;
899 if (!(nla_mpls_opts->nla_type & NLA_F_NESTED)) {
900 NL_SET_ERR_MSG_ATTR(extack, nla_mpls_opts,
901 "NLA_F_NESTED is missing");
905 nla_for_each_nested(nla_lse, nla_mpls_opts, rem) {
906 if (nla_type(nla_lse) != TCA_FLOWER_KEY_MPLS_OPTS_LSE) {
907 NL_SET_ERR_MSG_ATTR(extack, nla_lse,
908 "Invalid MPLS option type");
912 err = fl_set_key_mpls_lse(nla_lse, key_val, key_mask, extack);
917 NL_SET_ERR_MSG(extack,
918 "Bytes leftover after parsing MPLS options");
925 static int fl_set_key_mpls(struct nlattr **tb,
926 struct flow_dissector_key_mpls *key_val,
927 struct flow_dissector_key_mpls *key_mask,
928 struct netlink_ext_ack *extack)
930 struct flow_dissector_mpls_lse *lse_mask;
931 struct flow_dissector_mpls_lse *lse_val;
933 if (tb[TCA_FLOWER_KEY_MPLS_OPTS]) {
934 if (tb[TCA_FLOWER_KEY_MPLS_TTL] ||
935 tb[TCA_FLOWER_KEY_MPLS_BOS] ||
936 tb[TCA_FLOWER_KEY_MPLS_TC] ||
937 tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
938 NL_SET_ERR_MSG_ATTR(extack,
939 tb[TCA_FLOWER_KEY_MPLS_OPTS],
940 "MPLS label, Traffic Class, Bottom Of Stack and Time To Live must be encapsulated in the MPLS options attribute");
944 return fl_set_key_mpls_opts(tb[TCA_FLOWER_KEY_MPLS_OPTS],
945 key_val, key_mask, extack);
948 lse_val = &key_val->ls[0];
949 lse_mask = &key_mask->ls[0];
951 if (tb[TCA_FLOWER_KEY_MPLS_TTL]) {
952 lse_val->mpls_ttl = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TTL]);
953 lse_mask->mpls_ttl = MPLS_TTL_MASK;
954 dissector_set_mpls_lse(key_val, 0);
955 dissector_set_mpls_lse(key_mask, 0);
957 if (tb[TCA_FLOWER_KEY_MPLS_BOS]) {
958 u8 bos = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_BOS]);
960 if (bos & ~MPLS_BOS_MASK) {
961 NL_SET_ERR_MSG_ATTR(extack,
962 tb[TCA_FLOWER_KEY_MPLS_BOS],
963 "Bottom Of Stack (BOS) must be 0 or 1");
966 lse_val->mpls_bos = bos;
967 lse_mask->mpls_bos = MPLS_BOS_MASK;
968 dissector_set_mpls_lse(key_val, 0);
969 dissector_set_mpls_lse(key_mask, 0);
971 if (tb[TCA_FLOWER_KEY_MPLS_TC]) {
972 u8 tc = nla_get_u8(tb[TCA_FLOWER_KEY_MPLS_TC]);
974 if (tc & ~MPLS_TC_MASK) {
975 NL_SET_ERR_MSG_ATTR(extack,
976 tb[TCA_FLOWER_KEY_MPLS_TC],
977 "Traffic Class (TC) must be between 0 and 7");
980 lse_val->mpls_tc = tc;
981 lse_mask->mpls_tc = MPLS_TC_MASK;
982 dissector_set_mpls_lse(key_val, 0);
983 dissector_set_mpls_lse(key_mask, 0);
985 if (tb[TCA_FLOWER_KEY_MPLS_LABEL]) {
986 u32 label = nla_get_u32(tb[TCA_FLOWER_KEY_MPLS_LABEL]);
988 if (label & ~MPLS_LABEL_MASK) {
989 NL_SET_ERR_MSG_ATTR(extack,
990 tb[TCA_FLOWER_KEY_MPLS_LABEL],
991 "Label must be between 0 and 1048575");
994 lse_val->mpls_label = label;
995 lse_mask->mpls_label = MPLS_LABEL_MASK;
996 dissector_set_mpls_lse(key_val, 0);
997 dissector_set_mpls_lse(key_mask, 0);
1002 static void fl_set_key_vlan(struct nlattr **tb,
1004 int vlan_id_key, int vlan_prio_key,
1005 struct flow_dissector_key_vlan *key_val,
1006 struct flow_dissector_key_vlan *key_mask)
1008 #define VLAN_PRIORITY_MASK 0x7
1010 if (tb[vlan_id_key]) {
1012 nla_get_u16(tb[vlan_id_key]) & VLAN_VID_MASK;
1013 key_mask->vlan_id = VLAN_VID_MASK;
1015 if (tb[vlan_prio_key]) {
1016 key_val->vlan_priority =
1017 nla_get_u8(tb[vlan_prio_key]) &
1019 key_mask->vlan_priority = VLAN_PRIORITY_MASK;
1021 key_val->vlan_tpid = ethertype;
1022 key_mask->vlan_tpid = cpu_to_be16(~0);
1025 static void fl_set_key_flag(u32 flower_key, u32 flower_mask,
1026 u32 *dissector_key, u32 *dissector_mask,
1027 u32 flower_flag_bit, u32 dissector_flag_bit)
1029 if (flower_mask & flower_flag_bit) {
1030 *dissector_mask |= dissector_flag_bit;
1031 if (flower_key & flower_flag_bit)
1032 *dissector_key |= dissector_flag_bit;
1036 static int fl_set_key_flags(struct nlattr **tb, u32 *flags_key,
1037 u32 *flags_mask, struct netlink_ext_ack *extack)
1041 /* mask is mandatory for flags */
1042 if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) {
1043 NL_SET_ERR_MSG(extack, "Missing flags mask");
1047 key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS]));
1048 mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK]));
1053 fl_set_key_flag(key, mask, flags_key, flags_mask,
1054 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
1055 fl_set_key_flag(key, mask, flags_key, flags_mask,
1056 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
1057 FLOW_DIS_FIRST_FRAG);
1062 static void fl_set_key_ip(struct nlattr **tb, bool encap,
1063 struct flow_dissector_key_ip *key,
1064 struct flow_dissector_key_ip *mask)
1066 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
1067 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
1068 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
1069 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
1071 fl_set_key_val(tb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos));
1072 fl_set_key_val(tb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl));
1075 static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key,
1076 int depth, int option_len,
1077 struct netlink_ext_ack *extack)
1079 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX + 1];
1080 struct nlattr *class = NULL, *type = NULL, *data = NULL;
1081 struct geneve_opt *opt;
1082 int err, data_len = 0;
1084 if (option_len > sizeof(struct geneve_opt))
1085 data_len = option_len - sizeof(struct geneve_opt);
1087 opt = (struct geneve_opt *)&key->enc_opts.data[key->enc_opts.len];
1088 memset(opt, 0xff, option_len);
1089 opt->length = data_len / 4;
1094 /* If no mask has been prodived we assume an exact match. */
1096 return sizeof(struct geneve_opt) + data_len;
1098 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_GENEVE) {
1099 NL_SET_ERR_MSG(extack, "Non-geneve option type for mask");
1103 err = nla_parse_nested_deprecated(tb,
1104 TCA_FLOWER_KEY_ENC_OPT_GENEVE_MAX,
1105 nla, geneve_opt_policy, extack);
1109 /* We are not allowed to omit any of CLASS, TYPE or DATA
1110 * fields from the key.
1113 (!tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS] ||
1114 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE] ||
1115 !tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA])) {
1116 NL_SET_ERR_MSG(extack, "Missing tunnel key geneve option class, type or data");
1120 /* Omitting any of CLASS, TYPE or DATA fields is allowed
1123 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA]) {
1124 int new_len = key->enc_opts.len;
1126 data = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA];
1127 data_len = nla_len(data);
1129 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is less than 4 bytes long");
1133 NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is not a multiple of 4 bytes long");
1137 new_len += sizeof(struct geneve_opt) + data_len;
1138 BUILD_BUG_ON(FLOW_DIS_TUN_OPTS_MAX != IP_TUNNEL_OPTS_MAX);
1139 if (new_len > FLOW_DIS_TUN_OPTS_MAX) {
1140 NL_SET_ERR_MSG(extack, "Tunnel options exceeds max size");
1143 opt->length = data_len / 4;
1144 memcpy(opt->opt_data, nla_data(data), data_len);
1147 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS]) {
1148 class = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS];
1149 opt->opt_class = nla_get_be16(class);
1152 if (tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE]) {
1153 type = tb[TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE];
1154 opt->type = nla_get_u8(type);
1157 return sizeof(struct geneve_opt) + data_len;
1160 static int fl_set_vxlan_opt(const struct nlattr *nla, struct fl_flow_key *key,
1161 int depth, int option_len,
1162 struct netlink_ext_ack *extack)
1164 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX + 1];
1165 struct vxlan_metadata *md;
1168 md = (struct vxlan_metadata *)&key->enc_opts.data[key->enc_opts.len];
1169 memset(md, 0xff, sizeof(*md));
1174 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_VXLAN) {
1175 NL_SET_ERR_MSG(extack, "Non-vxlan option type for mask");
1179 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_MAX, nla,
1180 vxlan_opt_policy, extack);
1184 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]) {
1185 NL_SET_ERR_MSG(extack, "Missing tunnel key vxlan option gbp");
1189 if (tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]) {
1190 md->gbp = nla_get_u32(tb[TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP]);
1191 md->gbp &= VXLAN_GBP_MASK;
1197 static int fl_set_erspan_opt(const struct nlattr *nla, struct fl_flow_key *key,
1198 int depth, int option_len,
1199 struct netlink_ext_ack *extack)
1201 struct nlattr *tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX + 1];
1202 struct erspan_metadata *md;
1205 md = (struct erspan_metadata *)&key->enc_opts.data[key->enc_opts.len];
1206 memset(md, 0xff, sizeof(*md));
1212 if (nla_type(nla) != TCA_FLOWER_KEY_ENC_OPTS_ERSPAN) {
1213 NL_SET_ERR_MSG(extack, "Non-erspan option type for mask");
1217 err = nla_parse_nested(tb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_MAX, nla,
1218 erspan_opt_policy, extack);
1222 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]) {
1223 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option ver");
1227 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER])
1228 md->version = nla_get_u8(tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER]);
1230 if (md->version == 1) {
1231 if (!option_len && !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]) {
1232 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option index");
1235 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX]) {
1236 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX];
1237 memset(&md->u, 0x00, sizeof(md->u));
1238 md->u.index = nla_get_be32(nla);
1240 } else if (md->version == 2) {
1241 if (!option_len && (!tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR] ||
1242 !tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID])) {
1243 NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option dir or hwid");
1246 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR]) {
1247 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR];
1248 md->u.md2.dir = nla_get_u8(nla);
1250 if (tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID]) {
1251 nla = tb[TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID];
1252 set_hwid(&md->u.md2, nla_get_u8(nla));
1255 NL_SET_ERR_MSG(extack, "Tunnel key erspan option ver is incorrect");
1262 static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key,
1263 struct fl_flow_key *mask,
1264 struct netlink_ext_ack *extack)
1266 const struct nlattr *nla_enc_key, *nla_opt_key, *nla_opt_msk = NULL;
1267 int err, option_len, key_depth, msk_depth = 0;
1269 err = nla_validate_nested_deprecated(tb[TCA_FLOWER_KEY_ENC_OPTS],
1270 TCA_FLOWER_KEY_ENC_OPTS_MAX,
1271 enc_opts_policy, extack);
1275 nla_enc_key = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS]);
1277 if (tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]) {
1278 err = nla_validate_nested_deprecated(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK],
1279 TCA_FLOWER_KEY_ENC_OPTS_MAX,
1280 enc_opts_policy, extack);
1284 nla_opt_msk = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
1285 msk_depth = nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
1286 if (!nla_ok(nla_opt_msk, msk_depth)) {
1287 NL_SET_ERR_MSG(extack, "Invalid nested attribute for masks");
1292 nla_for_each_attr(nla_opt_key, nla_enc_key,
1293 nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS]), key_depth) {
1294 switch (nla_type(nla_opt_key)) {
1295 case TCA_FLOWER_KEY_ENC_OPTS_GENEVE:
1296 if (key->enc_opts.dst_opt_type &&
1297 key->enc_opts.dst_opt_type != TUNNEL_GENEVE_OPT) {
1298 NL_SET_ERR_MSG(extack, "Duplicate type for geneve options");
1302 key->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
1303 option_len = fl_set_geneve_opt(nla_opt_key, key,
1304 key_depth, option_len,
1309 key->enc_opts.len += option_len;
1310 /* At the same time we need to parse through the mask
1311 * in order to verify exact and mask attribute lengths.
1313 mask->enc_opts.dst_opt_type = TUNNEL_GENEVE_OPT;
1314 option_len = fl_set_geneve_opt(nla_opt_msk, mask,
1315 msk_depth, option_len,
1320 mask->enc_opts.len += option_len;
1321 if (key->enc_opts.len != mask->enc_opts.len) {
1322 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1326 case TCA_FLOWER_KEY_ENC_OPTS_VXLAN:
1327 if (key->enc_opts.dst_opt_type) {
1328 NL_SET_ERR_MSG(extack, "Duplicate type for vxlan options");
1332 key->enc_opts.dst_opt_type = TUNNEL_VXLAN_OPT;
1333 option_len = fl_set_vxlan_opt(nla_opt_key, key,
1334 key_depth, option_len,
1339 key->enc_opts.len += option_len;
1340 /* At the same time we need to parse through the mask
1341 * in order to verify exact and mask attribute lengths.
1343 mask->enc_opts.dst_opt_type = TUNNEL_VXLAN_OPT;
1344 option_len = fl_set_vxlan_opt(nla_opt_msk, mask,
1345 msk_depth, option_len,
1350 mask->enc_opts.len += option_len;
1351 if (key->enc_opts.len != mask->enc_opts.len) {
1352 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1356 case TCA_FLOWER_KEY_ENC_OPTS_ERSPAN:
1357 if (key->enc_opts.dst_opt_type) {
1358 NL_SET_ERR_MSG(extack, "Duplicate type for erspan options");
1362 key->enc_opts.dst_opt_type = TUNNEL_ERSPAN_OPT;
1363 option_len = fl_set_erspan_opt(nla_opt_key, key,
1364 key_depth, option_len,
1369 key->enc_opts.len += option_len;
1370 /* At the same time we need to parse through the mask
1371 * in order to verify exact and mask attribute lengths.
1373 mask->enc_opts.dst_opt_type = TUNNEL_ERSPAN_OPT;
1374 option_len = fl_set_erspan_opt(nla_opt_msk, mask,
1375 msk_depth, option_len,
1380 mask->enc_opts.len += option_len;
1381 if (key->enc_opts.len != mask->enc_opts.len) {
1382 NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
1387 NL_SET_ERR_MSG(extack, "Unknown tunnel option type");
1394 if (!nla_ok(nla_opt_msk, msk_depth)) {
1395 NL_SET_ERR_MSG(extack, "A mask attribute is invalid");
1398 nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
1404 static int fl_validate_ct_state(u16 state, struct nlattr *tb,
1405 struct netlink_ext_ack *extack)
1407 if (state && !(state & TCA_FLOWER_KEY_CT_FLAGS_TRACKED)) {
1408 NL_SET_ERR_MSG_ATTR(extack, tb,
1409 "no trk, so no other flag can be set");
1413 if (state & TCA_FLOWER_KEY_CT_FLAGS_NEW &&
1414 state & TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED) {
1415 NL_SET_ERR_MSG_ATTR(extack, tb,
1416 "new and est are mutually exclusive");
1423 static int fl_set_key_ct(struct nlattr **tb,
1424 struct flow_dissector_key_ct *key,
1425 struct flow_dissector_key_ct *mask,
1426 struct netlink_ext_ack *extack)
1428 if (tb[TCA_FLOWER_KEY_CT_STATE]) {
1431 if (!IS_ENABLED(CONFIG_NF_CONNTRACK)) {
1432 NL_SET_ERR_MSG(extack, "Conntrack isn't enabled");
1435 fl_set_key_val(tb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE,
1436 &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
1437 sizeof(key->ct_state));
1439 err = fl_validate_ct_state(mask->ct_state,
1440 tb[TCA_FLOWER_KEY_CT_STATE_MASK],
1446 if (tb[TCA_FLOWER_KEY_CT_ZONE]) {
1447 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES)) {
1448 NL_SET_ERR_MSG(extack, "Conntrack zones isn't enabled");
1451 fl_set_key_val(tb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE,
1452 &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK,
1453 sizeof(key->ct_zone));
1455 if (tb[TCA_FLOWER_KEY_CT_MARK]) {
1456 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_MARK)) {
1457 NL_SET_ERR_MSG(extack, "Conntrack mark isn't enabled");
1460 fl_set_key_val(tb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK,
1461 &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK,
1462 sizeof(key->ct_mark));
1464 if (tb[TCA_FLOWER_KEY_CT_LABELS]) {
1465 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS)) {
1466 NL_SET_ERR_MSG(extack, "Conntrack labels aren't enabled");
1469 fl_set_key_val(tb, key->ct_labels, TCA_FLOWER_KEY_CT_LABELS,
1470 mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK,
1471 sizeof(key->ct_labels));
1477 static int fl_set_key(struct net *net, struct nlattr **tb,
1478 struct fl_flow_key *key, struct fl_flow_key *mask,
1479 struct netlink_ext_ack *extack)
1484 if (tb[TCA_FLOWER_INDEV]) {
1485 int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack);
1488 key->meta.ingress_ifindex = err;
1489 mask->meta.ingress_ifindex = 0xffffffff;
1492 fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
1493 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
1494 sizeof(key->eth.dst));
1495 fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
1496 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
1497 sizeof(key->eth.src));
1499 if (tb[TCA_FLOWER_KEY_ETH_TYPE]) {
1500 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]);
1502 if (eth_type_vlan(ethertype)) {
1503 fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID,
1504 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan,
1507 if (tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]) {
1508 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]);
1509 if (eth_type_vlan(ethertype)) {
1510 fl_set_key_vlan(tb, ethertype,
1511 TCA_FLOWER_KEY_CVLAN_ID,
1512 TCA_FLOWER_KEY_CVLAN_PRIO,
1513 &key->cvlan, &mask->cvlan);
1514 fl_set_key_val(tb, &key->basic.n_proto,
1515 TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
1516 &mask->basic.n_proto,
1518 sizeof(key->basic.n_proto));
1520 key->basic.n_proto = ethertype;
1521 mask->basic.n_proto = cpu_to_be16(~0);
1525 key->basic.n_proto = ethertype;
1526 mask->basic.n_proto = cpu_to_be16(~0);
1530 if (key->basic.n_proto == htons(ETH_P_IP) ||
1531 key->basic.n_proto == htons(ETH_P_IPV6)) {
1532 fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
1533 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
1534 sizeof(key->basic.ip_proto));
1535 fl_set_key_ip(tb, false, &key->ip, &mask->ip);
1538 if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) {
1539 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
1540 mask->control.addr_type = ~0;
1541 fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
1542 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
1543 sizeof(key->ipv4.src));
1544 fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
1545 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
1546 sizeof(key->ipv4.dst));
1547 } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) {
1548 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
1549 mask->control.addr_type = ~0;
1550 fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
1551 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
1552 sizeof(key->ipv6.src));
1553 fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
1554 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
1555 sizeof(key->ipv6.dst));
1558 if (key->basic.ip_proto == IPPROTO_TCP) {
1559 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
1560 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
1561 sizeof(key->tp.src));
1562 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
1563 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
1564 sizeof(key->tp.dst));
1565 fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
1566 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
1567 sizeof(key->tcp.flags));
1568 } else if (key->basic.ip_proto == IPPROTO_UDP) {
1569 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
1570 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
1571 sizeof(key->tp.src));
1572 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
1573 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
1574 sizeof(key->tp.dst));
1575 } else if (key->basic.ip_proto == IPPROTO_SCTP) {
1576 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
1577 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
1578 sizeof(key->tp.src));
1579 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
1580 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
1581 sizeof(key->tp.dst));
1582 } else if (key->basic.n_proto == htons(ETH_P_IP) &&
1583 key->basic.ip_proto == IPPROTO_ICMP) {
1584 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE,
1586 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
1587 sizeof(key->icmp.type));
1588 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE,
1590 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
1591 sizeof(key->icmp.code));
1592 } else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
1593 key->basic.ip_proto == IPPROTO_ICMPV6) {
1594 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE,
1596 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
1597 sizeof(key->icmp.type));
1598 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE,
1600 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
1601 sizeof(key->icmp.code));
1602 } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) ||
1603 key->basic.n_proto == htons(ETH_P_MPLS_MC)) {
1604 ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls, extack);
1607 } else if (key->basic.n_proto == htons(ETH_P_ARP) ||
1608 key->basic.n_proto == htons(ETH_P_RARP)) {
1609 fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP,
1610 &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK,
1611 sizeof(key->arp.sip));
1612 fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP,
1613 &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK,
1614 sizeof(key->arp.tip));
1615 fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP,
1616 &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK,
1617 sizeof(key->arp.op));
1618 fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
1619 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
1620 sizeof(key->arp.sha));
1621 fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
1622 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
1623 sizeof(key->arp.tha));
1626 if (key->basic.ip_proto == IPPROTO_TCP ||
1627 key->basic.ip_proto == IPPROTO_UDP ||
1628 key->basic.ip_proto == IPPROTO_SCTP) {
1629 ret = fl_set_key_port_range(tb, key, mask, extack);
1634 if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] ||
1635 tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) {
1636 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
1637 mask->enc_control.addr_type = ~0;
1638 fl_set_key_val(tb, &key->enc_ipv4.src,
1639 TCA_FLOWER_KEY_ENC_IPV4_SRC,
1640 &mask->enc_ipv4.src,
1641 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
1642 sizeof(key->enc_ipv4.src));
1643 fl_set_key_val(tb, &key->enc_ipv4.dst,
1644 TCA_FLOWER_KEY_ENC_IPV4_DST,
1645 &mask->enc_ipv4.dst,
1646 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
1647 sizeof(key->enc_ipv4.dst));
1650 if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] ||
1651 tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) {
1652 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
1653 mask->enc_control.addr_type = ~0;
1654 fl_set_key_val(tb, &key->enc_ipv6.src,
1655 TCA_FLOWER_KEY_ENC_IPV6_SRC,
1656 &mask->enc_ipv6.src,
1657 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
1658 sizeof(key->enc_ipv6.src));
1659 fl_set_key_val(tb, &key->enc_ipv6.dst,
1660 TCA_FLOWER_KEY_ENC_IPV6_DST,
1661 &mask->enc_ipv6.dst,
1662 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
1663 sizeof(key->enc_ipv6.dst));
1666 fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID,
1667 &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC,
1668 sizeof(key->enc_key_id.keyid));
1670 fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
1671 &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
1672 sizeof(key->enc_tp.src));
1674 fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
1675 &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
1676 sizeof(key->enc_tp.dst));
1678 fl_set_key_ip(tb, true, &key->enc_ip, &mask->enc_ip);
1680 fl_set_key_val(tb, &key->hash.hash, TCA_FLOWER_KEY_HASH,
1681 &mask->hash.hash, TCA_FLOWER_KEY_HASH_MASK,
1682 sizeof(key->hash.hash));
1684 if (tb[TCA_FLOWER_KEY_ENC_OPTS]) {
1685 ret = fl_set_enc_opt(tb, key, mask, extack);
1690 ret = fl_set_key_ct(tb, &key->ct, &mask->ct, extack);
1694 if (tb[TCA_FLOWER_KEY_FLAGS])
1695 ret = fl_set_key_flags(tb, &key->control.flags,
1696 &mask->control.flags, extack);
1701 static void fl_mask_copy(struct fl_flow_mask *dst,
1702 struct fl_flow_mask *src)
1704 const void *psrc = fl_key_get_start(&src->key, src);
1705 void *pdst = fl_key_get_start(&dst->key, src);
1707 memcpy(pdst, psrc, fl_mask_range(src));
1708 dst->range = src->range;
1711 static const struct rhashtable_params fl_ht_params = {
1712 .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */
1713 .head_offset = offsetof(struct cls_fl_filter, ht_node),
1714 .automatic_shrinking = true,
1717 static int fl_init_mask_hashtable(struct fl_flow_mask *mask)
1719 mask->filter_ht_params = fl_ht_params;
1720 mask->filter_ht_params.key_len = fl_mask_range(mask);
1721 mask->filter_ht_params.key_offset += mask->range.start;
1723 return rhashtable_init(&mask->ht, &mask->filter_ht_params);
1726 #define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member)
1727 #define FL_KEY_MEMBER_SIZE(member) sizeof_field(struct fl_flow_key, member)
1729 #define FL_KEY_IS_MASKED(mask, member) \
1730 memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \
1731 0, FL_KEY_MEMBER_SIZE(member)) \
1733 #define FL_KEY_SET(keys, cnt, id, member) \
1735 keys[cnt].key_id = id; \
1736 keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \
1740 #define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \
1742 if (FL_KEY_IS_MASKED(mask, member)) \
1743 FL_KEY_SET(keys, cnt, id, member); \
1746 static void fl_init_dissector(struct flow_dissector *dissector,
1747 struct fl_flow_key *mask)
1749 struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX];
1752 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1753 FLOW_DISSECTOR_KEY_META, meta);
1754 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control);
1755 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic);
1756 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1757 FLOW_DISSECTOR_KEY_ETH_ADDRS, eth);
1758 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1759 FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4);
1760 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1761 FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6);
1762 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1763 FLOW_DISSECTOR_KEY_PORTS, tp);
1764 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1765 FLOW_DISSECTOR_KEY_PORTS_RANGE, tp_range);
1766 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1767 FLOW_DISSECTOR_KEY_IP, ip);
1768 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1769 FLOW_DISSECTOR_KEY_TCP, tcp);
1770 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1771 FLOW_DISSECTOR_KEY_ICMP, icmp);
1772 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1773 FLOW_DISSECTOR_KEY_ARP, arp);
1774 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1775 FLOW_DISSECTOR_KEY_MPLS, mpls);
1776 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1777 FLOW_DISSECTOR_KEY_VLAN, vlan);
1778 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1779 FLOW_DISSECTOR_KEY_CVLAN, cvlan);
1780 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1781 FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id);
1782 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1783 FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4);
1784 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1785 FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6);
1786 if (FL_KEY_IS_MASKED(mask, enc_ipv4) ||
1787 FL_KEY_IS_MASKED(mask, enc_ipv6))
1788 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL,
1790 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1791 FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp);
1792 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1793 FLOW_DISSECTOR_KEY_ENC_IP, enc_ip);
1794 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1795 FLOW_DISSECTOR_KEY_ENC_OPTS, enc_opts);
1796 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1797 FLOW_DISSECTOR_KEY_CT, ct);
1798 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1799 FLOW_DISSECTOR_KEY_HASH, hash);
1801 skb_flow_dissector_init(dissector, keys, cnt);
1804 static struct fl_flow_mask *fl_create_new_mask(struct cls_fl_head *head,
1805 struct fl_flow_mask *mask)
1807 struct fl_flow_mask *newmask;
1810 newmask = kzalloc(sizeof(*newmask), GFP_KERNEL);
1812 return ERR_PTR(-ENOMEM);
1814 fl_mask_copy(newmask, mask);
1816 if ((newmask->key.tp_range.tp_min.dst &&
1817 newmask->key.tp_range.tp_max.dst) ||
1818 (newmask->key.tp_range.tp_min.src &&
1819 newmask->key.tp_range.tp_max.src))
1820 newmask->flags |= TCA_FLOWER_MASK_FLAGS_RANGE;
1822 err = fl_init_mask_hashtable(newmask);
1826 fl_init_dissector(&newmask->dissector, &newmask->key);
1828 INIT_LIST_HEAD_RCU(&newmask->filters);
1830 refcount_set(&newmask->refcnt, 1);
1831 err = rhashtable_replace_fast(&head->ht, &mask->ht_node,
1832 &newmask->ht_node, mask_ht_params);
1834 goto errout_destroy;
1836 spin_lock(&head->masks_lock);
1837 list_add_tail_rcu(&newmask->list, &head->masks);
1838 spin_unlock(&head->masks_lock);
1843 rhashtable_destroy(&newmask->ht);
1847 return ERR_PTR(err);
1850 static int fl_check_assign_mask(struct cls_fl_head *head,
1851 struct cls_fl_filter *fnew,
1852 struct cls_fl_filter *fold,
1853 struct fl_flow_mask *mask)
1855 struct fl_flow_mask *newmask;
1860 /* Insert mask as temporary node to prevent concurrent creation of mask
1861 * with same key. Any concurrent lookups with same key will return
1862 * -EAGAIN because mask's refcnt is zero.
1864 fnew->mask = rhashtable_lookup_get_insert_fast(&head->ht,
1872 goto errout_cleanup;
1875 newmask = fl_create_new_mask(head, mask);
1876 if (IS_ERR(newmask)) {
1877 ret = PTR_ERR(newmask);
1878 goto errout_cleanup;
1881 fnew->mask = newmask;
1883 } else if (IS_ERR(fnew->mask)) {
1884 ret = PTR_ERR(fnew->mask);
1885 } else if (fold && fold->mask != fnew->mask) {
1887 } else if (!refcount_inc_not_zero(&fnew->mask->refcnt)) {
1888 /* Mask was deleted concurrently, try again */
1895 rhashtable_remove_fast(&head->ht, &mask->ht_node,
1900 static int fl_set_parms(struct net *net, struct tcf_proto *tp,
1901 struct cls_fl_filter *f, struct fl_flow_mask *mask,
1902 unsigned long base, struct nlattr **tb,
1903 struct nlattr *est, bool ovr,
1904 struct fl_flow_tmplt *tmplt, bool rtnl_held,
1905 struct netlink_ext_ack *extack)
1909 err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, rtnl_held,
1914 if (tb[TCA_FLOWER_CLASSID]) {
1915 f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]);
1918 tcf_bind_filter(tp, &f->res, base);
1923 err = fl_set_key(net, tb, &f->key, &mask->key, extack);
1927 fl_mask_update_range(mask);
1928 fl_set_masked_key(&f->mkey, &f->key, mask);
1930 if (!fl_mask_fits_tmplt(tmplt, mask)) {
1931 NL_SET_ERR_MSG_MOD(extack, "Mask does not fit the template");
1938 static int fl_ht_insert_unique(struct cls_fl_filter *fnew,
1939 struct cls_fl_filter *fold,
1942 struct fl_flow_mask *mask = fnew->mask;
1945 err = rhashtable_lookup_insert_fast(&mask->ht,
1947 mask->filter_ht_params);
1950 /* It is okay if filter with same key exists when
1953 return fold && err == -EEXIST ? 0 : err;
1960 static int fl_change(struct net *net, struct sk_buff *in_skb,
1961 struct tcf_proto *tp, unsigned long base,
1962 u32 handle, struct nlattr **tca,
1963 void **arg, bool ovr, bool rtnl_held,
1964 struct netlink_ext_ack *extack)
1966 struct cls_fl_head *head = fl_head_dereference(tp);
1967 struct cls_fl_filter *fold = *arg;
1968 struct cls_fl_filter *fnew;
1969 struct fl_flow_mask *mask;
1974 if (!tca[TCA_OPTIONS]) {
1979 mask = kzalloc(sizeof(struct fl_flow_mask), GFP_KERNEL);
1985 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
1988 goto errout_mask_alloc;
1991 err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX,
1992 tca[TCA_OPTIONS], fl_policy, NULL);
1996 if (fold && handle && fold->handle != handle) {
2001 fnew = kzalloc(sizeof(*fnew), GFP_KERNEL);
2006 INIT_LIST_HEAD(&fnew->hw_list);
2007 refcount_set(&fnew->refcnt, 1);
2009 err = tcf_exts_init(&fnew->exts, net, TCA_FLOWER_ACT, 0);
2013 if (tb[TCA_FLOWER_FLAGS]) {
2014 fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]);
2016 if (!tc_flags_valid(fnew->flags)) {
2022 err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE], ovr,
2023 tp->chain->tmplt_priv, rtnl_held, extack);
2027 err = fl_check_assign_mask(head, fnew, fold, mask);
2031 err = fl_ht_insert_unique(fnew, fold, &in_ht);
2035 if (!tc_skip_hw(fnew->flags)) {
2036 err = fl_hw_replace_filter(tp, fnew, rtnl_held, extack);
2041 if (!tc_in_hw(fnew->flags))
2042 fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
2044 spin_lock(&tp->lock);
2046 /* tp was deleted concurrently. -EAGAIN will cause caller to lookup
2047 * proto again or create new one, if necessary.
2055 /* Fold filter was deleted concurrently. Retry lookup. */
2056 if (fold->deleted) {
2061 fnew->handle = handle;
2064 struct rhashtable_params params =
2065 fnew->mask->filter_ht_params;
2067 err = rhashtable_insert_fast(&fnew->mask->ht,
2075 refcount_inc(&fnew->refcnt);
2076 rhashtable_remove_fast(&fold->mask->ht,
2078 fold->mask->filter_ht_params);
2079 idr_replace(&head->handle_idr, fnew, fnew->handle);
2080 list_replace_rcu(&fold->list, &fnew->list);
2081 fold->deleted = true;
2083 spin_unlock(&tp->lock);
2085 fl_mask_put(head, fold->mask);
2086 if (!tc_skip_hw(fold->flags))
2087 fl_hw_destroy_filter(tp, fold, rtnl_held, NULL);
2088 tcf_unbind_filter(tp, &fold->res);
2089 /* Caller holds reference to fold, so refcnt is always > 0
2092 refcount_dec(&fold->refcnt);
2096 /* user specifies a handle and it doesn't exist */
2097 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
2098 handle, GFP_ATOMIC);
2100 /* Filter with specified handle was concurrently
2101 * inserted after initial check in cls_api. This is not
2102 * necessarily an error if NLM_F_EXCL is not set in
2103 * message flags. Returning EAGAIN will cause cls_api to
2104 * try to update concurrently inserted rule.
2110 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
2111 INT_MAX, GFP_ATOMIC);
2116 refcount_inc(&fnew->refcnt);
2117 fnew->handle = handle;
2118 list_add_tail_rcu(&fnew->list, &fnew->mask->filters);
2119 spin_unlock(&tp->lock);
2125 tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work);
2129 spin_lock(&tp->lock);
2131 fnew->deleted = true;
2132 spin_unlock(&tp->lock);
2133 if (!tc_skip_hw(fnew->flags))
2134 fl_hw_destroy_filter(tp, fnew, rtnl_held, NULL);
2136 rhashtable_remove_fast(&fnew->mask->ht, &fnew->ht_node,
2137 fnew->mask->filter_ht_params);
2139 fl_mask_put(head, fnew->mask);
2145 tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work);
2152 static int fl_delete(struct tcf_proto *tp, void *arg, bool *last,
2153 bool rtnl_held, struct netlink_ext_ack *extack)
2155 struct cls_fl_head *head = fl_head_dereference(tp);
2156 struct cls_fl_filter *f = arg;
2160 err = __fl_delete(tp, f, &last_on_mask, rtnl_held, extack);
2161 *last = list_empty(&head->masks);
2167 static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg,
2170 struct cls_fl_head *head = fl_head_dereference(tp);
2171 unsigned long id = arg->cookie, tmp;
2172 struct cls_fl_filter *f;
2174 arg->count = arg->skip;
2176 idr_for_each_entry_continue_ul(&head->handle_idr, f, tmp, id) {
2177 /* don't return filters that are being deleted */
2178 if (!refcount_inc_not_zero(&f->refcnt))
2180 if (arg->fn(tp, f, arg) < 0) {
2191 static struct cls_fl_filter *
2192 fl_get_next_hw_filter(struct tcf_proto *tp, struct cls_fl_filter *f, bool add)
2194 struct cls_fl_head *head = fl_head_dereference(tp);
2196 spin_lock(&tp->lock);
2197 if (list_empty(&head->hw_filters)) {
2198 spin_unlock(&tp->lock);
2203 f = list_entry(&head->hw_filters, struct cls_fl_filter,
2205 list_for_each_entry_continue(f, &head->hw_filters, hw_list) {
2206 if (!(add && f->deleted) && refcount_inc_not_zero(&f->refcnt)) {
2207 spin_unlock(&tp->lock);
2212 spin_unlock(&tp->lock);
2216 static int fl_reoffload(struct tcf_proto *tp, bool add, flow_setup_cb_t *cb,
2217 void *cb_priv, struct netlink_ext_ack *extack)
2219 struct tcf_block *block = tp->chain->block;
2220 struct flow_cls_offload cls_flower = {};
2221 struct cls_fl_filter *f = NULL;
2224 /* hw_filters list can only be changed by hw offload functions after
2225 * obtaining rtnl lock. Make sure it is not changed while reoffload is
2230 while ((f = fl_get_next_hw_filter(tp, f, add))) {
2232 flow_rule_alloc(tcf_exts_num_actions(&f->exts));
2233 if (!cls_flower.rule) {
2238 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags,
2240 cls_flower.command = add ?
2241 FLOW_CLS_REPLACE : FLOW_CLS_DESTROY;
2242 cls_flower.cookie = (unsigned long)f;
2243 cls_flower.rule->match.dissector = &f->mask->dissector;
2244 cls_flower.rule->match.mask = &f->mask->key;
2245 cls_flower.rule->match.key = &f->mkey;
2247 err = tc_setup_flow_action(&cls_flower.rule->action, &f->exts);
2249 kfree(cls_flower.rule);
2250 if (tc_skip_sw(f->flags)) {
2251 NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action");
2258 cls_flower.classid = f->res.classid;
2260 err = tc_setup_cb_reoffload(block, tp, add, cb,
2261 TC_SETUP_CLSFLOWER, &cls_flower,
2264 tc_cleanup_flow_action(&cls_flower.rule->action);
2265 kfree(cls_flower.rule);
2278 static void fl_hw_add(struct tcf_proto *tp, void *type_data)
2280 struct flow_cls_offload *cls_flower = type_data;
2281 struct cls_fl_filter *f =
2282 (struct cls_fl_filter *) cls_flower->cookie;
2283 struct cls_fl_head *head = fl_head_dereference(tp);
2285 spin_lock(&tp->lock);
2286 list_add(&f->hw_list, &head->hw_filters);
2287 spin_unlock(&tp->lock);
2290 static void fl_hw_del(struct tcf_proto *tp, void *type_data)
2292 struct flow_cls_offload *cls_flower = type_data;
2293 struct cls_fl_filter *f =
2294 (struct cls_fl_filter *) cls_flower->cookie;
2296 spin_lock(&tp->lock);
2297 if (!list_empty(&f->hw_list))
2298 list_del_init(&f->hw_list);
2299 spin_unlock(&tp->lock);
2302 static int fl_hw_create_tmplt(struct tcf_chain *chain,
2303 struct fl_flow_tmplt *tmplt)
2305 struct flow_cls_offload cls_flower = {};
2306 struct tcf_block *block = chain->block;
2308 cls_flower.rule = flow_rule_alloc(0);
2309 if (!cls_flower.rule)
2312 cls_flower.common.chain_index = chain->index;
2313 cls_flower.command = FLOW_CLS_TMPLT_CREATE;
2314 cls_flower.cookie = (unsigned long) tmplt;
2315 cls_flower.rule->match.dissector = &tmplt->dissector;
2316 cls_flower.rule->match.mask = &tmplt->mask;
2317 cls_flower.rule->match.key = &tmplt->dummy_key;
2319 /* We don't care if driver (any of them) fails to handle this
2320 * call. It serves just as a hint for it.
2322 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true);
2323 kfree(cls_flower.rule);
2328 static void fl_hw_destroy_tmplt(struct tcf_chain *chain,
2329 struct fl_flow_tmplt *tmplt)
2331 struct flow_cls_offload cls_flower = {};
2332 struct tcf_block *block = chain->block;
2334 cls_flower.common.chain_index = chain->index;
2335 cls_flower.command = FLOW_CLS_TMPLT_DESTROY;
2336 cls_flower.cookie = (unsigned long) tmplt;
2338 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true);
2341 static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain,
2342 struct nlattr **tca,
2343 struct netlink_ext_ack *extack)
2345 struct fl_flow_tmplt *tmplt;
2349 if (!tca[TCA_OPTIONS])
2350 return ERR_PTR(-EINVAL);
2352 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
2354 return ERR_PTR(-ENOBUFS);
2355 err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX,
2356 tca[TCA_OPTIONS], fl_policy, NULL);
2360 tmplt = kzalloc(sizeof(*tmplt), GFP_KERNEL);
2365 tmplt->chain = chain;
2366 err = fl_set_key(net, tb, &tmplt->dummy_key, &tmplt->mask, extack);
2370 fl_init_dissector(&tmplt->dissector, &tmplt->mask);
2372 err = fl_hw_create_tmplt(chain, tmplt);
2383 return ERR_PTR(err);
2386 static void fl_tmplt_destroy(void *tmplt_priv)
2388 struct fl_flow_tmplt *tmplt = tmplt_priv;
2390 fl_hw_destroy_tmplt(tmplt->chain, tmplt);
2394 static int fl_dump_key_val(struct sk_buff *skb,
2395 void *val, int val_type,
2396 void *mask, int mask_type, int len)
2400 if (!memchr_inv(mask, 0, len))
2402 err = nla_put(skb, val_type, len, val);
2405 if (mask_type != TCA_FLOWER_UNSPEC) {
2406 err = nla_put(skb, mask_type, len, mask);
2413 static int fl_dump_key_port_range(struct sk_buff *skb, struct fl_flow_key *key,
2414 struct fl_flow_key *mask)
2416 if (fl_dump_key_val(skb, &key->tp_range.tp_min.dst,
2417 TCA_FLOWER_KEY_PORT_DST_MIN,
2418 &mask->tp_range.tp_min.dst, TCA_FLOWER_UNSPEC,
2419 sizeof(key->tp_range.tp_min.dst)) ||
2420 fl_dump_key_val(skb, &key->tp_range.tp_max.dst,
2421 TCA_FLOWER_KEY_PORT_DST_MAX,
2422 &mask->tp_range.tp_max.dst, TCA_FLOWER_UNSPEC,
2423 sizeof(key->tp_range.tp_max.dst)) ||
2424 fl_dump_key_val(skb, &key->tp_range.tp_min.src,
2425 TCA_FLOWER_KEY_PORT_SRC_MIN,
2426 &mask->tp_range.tp_min.src, TCA_FLOWER_UNSPEC,
2427 sizeof(key->tp_range.tp_min.src)) ||
2428 fl_dump_key_val(skb, &key->tp_range.tp_max.src,
2429 TCA_FLOWER_KEY_PORT_SRC_MAX,
2430 &mask->tp_range.tp_max.src, TCA_FLOWER_UNSPEC,
2431 sizeof(key->tp_range.tp_max.src)))
2437 static int fl_dump_key_mpls_opt_lse(struct sk_buff *skb,
2438 struct flow_dissector_key_mpls *mpls_key,
2439 struct flow_dissector_key_mpls *mpls_mask,
2442 struct flow_dissector_mpls_lse *lse_mask = &mpls_mask->ls[lse_index];
2443 struct flow_dissector_mpls_lse *lse_key = &mpls_key->ls[lse_index];
2446 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH,
2451 if (lse_mask->mpls_ttl) {
2452 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL,
2457 if (lse_mask->mpls_bos) {
2458 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS,
2463 if (lse_mask->mpls_tc) {
2464 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_TC,
2469 if (lse_mask->mpls_label) {
2470 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL,
2471 lse_key->mpls_label);
2479 static int fl_dump_key_mpls_opts(struct sk_buff *skb,
2480 struct flow_dissector_key_mpls *mpls_key,
2481 struct flow_dissector_key_mpls *mpls_mask)
2483 struct nlattr *opts;
2488 opts = nla_nest_start(skb, TCA_FLOWER_KEY_MPLS_OPTS);
2492 for (lse_index = 0; lse_index < FLOW_DIS_MPLS_MAX; lse_index++) {
2493 if (!(mpls_mask->used_lses & 1 << lse_index))
2496 lse = nla_nest_start(skb, TCA_FLOWER_KEY_MPLS_OPTS_LSE);
2502 err = fl_dump_key_mpls_opt_lse(skb, mpls_key, mpls_mask,
2506 nla_nest_end(skb, lse);
2508 nla_nest_end(skb, opts);
2513 nla_nest_cancel(skb, lse);
2515 nla_nest_cancel(skb, opts);
2520 static int fl_dump_key_mpls(struct sk_buff *skb,
2521 struct flow_dissector_key_mpls *mpls_key,
2522 struct flow_dissector_key_mpls *mpls_mask)
2524 struct flow_dissector_mpls_lse *lse_mask;
2525 struct flow_dissector_mpls_lse *lse_key;
2528 if (!mpls_mask->used_lses)
2531 lse_mask = &mpls_mask->ls[0];
2532 lse_key = &mpls_key->ls[0];
2534 /* For backward compatibility, don't use the MPLS nested attributes if
2535 * the rule can be expressed using the old attributes.
2537 if (mpls_mask->used_lses & ~1 ||
2538 (!lse_mask->mpls_ttl && !lse_mask->mpls_bos &&
2539 !lse_mask->mpls_tc && !lse_mask->mpls_label))
2540 return fl_dump_key_mpls_opts(skb, mpls_key, mpls_mask);
2542 if (lse_mask->mpls_ttl) {
2543 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL,
2548 if (lse_mask->mpls_tc) {
2549 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC,
2554 if (lse_mask->mpls_label) {
2555 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL,
2556 lse_key->mpls_label);
2560 if (lse_mask->mpls_bos) {
2561 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS,
2569 static int fl_dump_key_ip(struct sk_buff *skb, bool encap,
2570 struct flow_dissector_key_ip *key,
2571 struct flow_dissector_key_ip *mask)
2573 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
2574 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
2575 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
2576 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
2578 if (fl_dump_key_val(skb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)) ||
2579 fl_dump_key_val(skb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl)))
2585 static int fl_dump_key_vlan(struct sk_buff *skb,
2586 int vlan_id_key, int vlan_prio_key,
2587 struct flow_dissector_key_vlan *vlan_key,
2588 struct flow_dissector_key_vlan *vlan_mask)
2592 if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask)))
2594 if (vlan_mask->vlan_id) {
2595 err = nla_put_u16(skb, vlan_id_key,
2600 if (vlan_mask->vlan_priority) {
2601 err = nla_put_u8(skb, vlan_prio_key,
2602 vlan_key->vlan_priority);
2609 static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask,
2610 u32 *flower_key, u32 *flower_mask,
2611 u32 flower_flag_bit, u32 dissector_flag_bit)
2613 if (dissector_mask & dissector_flag_bit) {
2614 *flower_mask |= flower_flag_bit;
2615 if (dissector_key & dissector_flag_bit)
2616 *flower_key |= flower_flag_bit;
2620 static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask)
2626 if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask)))
2632 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
2633 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
2634 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
2635 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
2636 FLOW_DIS_FIRST_FRAG);
2638 _key = cpu_to_be32(key);
2639 _mask = cpu_to_be32(mask);
2641 err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key);
2645 return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask);
2648 static int fl_dump_key_geneve_opt(struct sk_buff *skb,
2649 struct flow_dissector_key_enc_opts *enc_opts)
2651 struct geneve_opt *opt;
2652 struct nlattr *nest;
2655 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE);
2657 goto nla_put_failure;
2659 while (enc_opts->len > opt_off) {
2660 opt = (struct geneve_opt *)&enc_opts->data[opt_off];
2662 if (nla_put_be16(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS,
2664 goto nla_put_failure;
2665 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE,
2667 goto nla_put_failure;
2668 if (nla_put(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA,
2669 opt->length * 4, opt->opt_data))
2670 goto nla_put_failure;
2672 opt_off += sizeof(struct geneve_opt) + opt->length * 4;
2674 nla_nest_end(skb, nest);
2678 nla_nest_cancel(skb, nest);
2682 static int fl_dump_key_vxlan_opt(struct sk_buff *skb,
2683 struct flow_dissector_key_enc_opts *enc_opts)
2685 struct vxlan_metadata *md;
2686 struct nlattr *nest;
2688 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_VXLAN);
2690 goto nla_put_failure;
2692 md = (struct vxlan_metadata *)&enc_opts->data[0];
2693 if (nla_put_u32(skb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP, md->gbp))
2694 goto nla_put_failure;
2696 nla_nest_end(skb, nest);
2700 nla_nest_cancel(skb, nest);
2704 static int fl_dump_key_erspan_opt(struct sk_buff *skb,
2705 struct flow_dissector_key_enc_opts *enc_opts)
2707 struct erspan_metadata *md;
2708 struct nlattr *nest;
2710 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_ERSPAN);
2712 goto nla_put_failure;
2714 md = (struct erspan_metadata *)&enc_opts->data[0];
2715 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER, md->version))
2716 goto nla_put_failure;
2718 if (md->version == 1 &&
2719 nla_put_be32(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX, md->u.index))
2720 goto nla_put_failure;
2722 if (md->version == 2 &&
2723 (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR,
2725 nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID,
2726 get_hwid(&md->u.md2))))
2727 goto nla_put_failure;
2729 nla_nest_end(skb, nest);
2733 nla_nest_cancel(skb, nest);
2737 static int fl_dump_key_ct(struct sk_buff *skb,
2738 struct flow_dissector_key_ct *key,
2739 struct flow_dissector_key_ct *mask)
2741 if (IS_ENABLED(CONFIG_NF_CONNTRACK) &&
2742 fl_dump_key_val(skb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE,
2743 &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
2744 sizeof(key->ct_state)))
2745 goto nla_put_failure;
2747 if (IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES) &&
2748 fl_dump_key_val(skb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE,
2749 &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK,
2750 sizeof(key->ct_zone)))
2751 goto nla_put_failure;
2753 if (IS_ENABLED(CONFIG_NF_CONNTRACK_MARK) &&
2754 fl_dump_key_val(skb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK,
2755 &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK,
2756 sizeof(key->ct_mark)))
2757 goto nla_put_failure;
2759 if (IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS) &&
2760 fl_dump_key_val(skb, &key->ct_labels, TCA_FLOWER_KEY_CT_LABELS,
2761 &mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK,
2762 sizeof(key->ct_labels)))
2763 goto nla_put_failure;
2771 static int fl_dump_key_options(struct sk_buff *skb, int enc_opt_type,
2772 struct flow_dissector_key_enc_opts *enc_opts)
2774 struct nlattr *nest;
2780 nest = nla_nest_start_noflag(skb, enc_opt_type);
2782 goto nla_put_failure;
2784 switch (enc_opts->dst_opt_type) {
2785 case TUNNEL_GENEVE_OPT:
2786 err = fl_dump_key_geneve_opt(skb, enc_opts);
2788 goto nla_put_failure;
2790 case TUNNEL_VXLAN_OPT:
2791 err = fl_dump_key_vxlan_opt(skb, enc_opts);
2793 goto nla_put_failure;
2795 case TUNNEL_ERSPAN_OPT:
2796 err = fl_dump_key_erspan_opt(skb, enc_opts);
2798 goto nla_put_failure;
2801 goto nla_put_failure;
2803 nla_nest_end(skb, nest);
2807 nla_nest_cancel(skb, nest);
2811 static int fl_dump_key_enc_opt(struct sk_buff *skb,
2812 struct flow_dissector_key_enc_opts *key_opts,
2813 struct flow_dissector_key_enc_opts *msk_opts)
2817 err = fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS, key_opts);
2821 return fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS_MASK, msk_opts);
2824 static int fl_dump_key(struct sk_buff *skb, struct net *net,
2825 struct fl_flow_key *key, struct fl_flow_key *mask)
2827 if (mask->meta.ingress_ifindex) {
2828 struct net_device *dev;
2830 dev = __dev_get_by_index(net, key->meta.ingress_ifindex);
2831 if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name))
2832 goto nla_put_failure;
2835 if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
2836 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
2837 sizeof(key->eth.dst)) ||
2838 fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
2839 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
2840 sizeof(key->eth.src)) ||
2841 fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE,
2842 &mask->basic.n_proto, TCA_FLOWER_UNSPEC,
2843 sizeof(key->basic.n_proto)))
2844 goto nla_put_failure;
2846 if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls))
2847 goto nla_put_failure;
2849 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_VLAN_ID,
2850 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, &mask->vlan))
2851 goto nla_put_failure;
2853 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_CVLAN_ID,
2854 TCA_FLOWER_KEY_CVLAN_PRIO,
2855 &key->cvlan, &mask->cvlan) ||
2856 (mask->cvlan.vlan_tpid &&
2857 nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
2858 key->cvlan.vlan_tpid)))
2859 goto nla_put_failure;
2861 if (mask->basic.n_proto) {
2862 if (mask->cvlan.vlan_tpid) {
2863 if (nla_put_be16(skb, TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
2864 key->basic.n_proto))
2865 goto nla_put_failure;
2866 } else if (mask->vlan.vlan_tpid) {
2867 if (nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
2868 key->basic.n_proto))
2869 goto nla_put_failure;
2873 if ((key->basic.n_proto == htons(ETH_P_IP) ||
2874 key->basic.n_proto == htons(ETH_P_IPV6)) &&
2875 (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
2876 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
2877 sizeof(key->basic.ip_proto)) ||
2878 fl_dump_key_ip(skb, false, &key->ip, &mask->ip)))
2879 goto nla_put_failure;
2881 if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
2882 (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
2883 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
2884 sizeof(key->ipv4.src)) ||
2885 fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
2886 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
2887 sizeof(key->ipv4.dst))))
2888 goto nla_put_failure;
2889 else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
2890 (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
2891 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
2892 sizeof(key->ipv6.src)) ||
2893 fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
2894 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
2895 sizeof(key->ipv6.dst))))
2896 goto nla_put_failure;
2898 if (key->basic.ip_proto == IPPROTO_TCP &&
2899 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
2900 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
2901 sizeof(key->tp.src)) ||
2902 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
2903 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
2904 sizeof(key->tp.dst)) ||
2905 fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
2906 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
2907 sizeof(key->tcp.flags))))
2908 goto nla_put_failure;
2909 else if (key->basic.ip_proto == IPPROTO_UDP &&
2910 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
2911 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
2912 sizeof(key->tp.src)) ||
2913 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
2914 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
2915 sizeof(key->tp.dst))))
2916 goto nla_put_failure;
2917 else if (key->basic.ip_proto == IPPROTO_SCTP &&
2918 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
2919 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
2920 sizeof(key->tp.src)) ||
2921 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
2922 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
2923 sizeof(key->tp.dst))))
2924 goto nla_put_failure;
2925 else if (key->basic.n_proto == htons(ETH_P_IP) &&
2926 key->basic.ip_proto == IPPROTO_ICMP &&
2927 (fl_dump_key_val(skb, &key->icmp.type,
2928 TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type,
2929 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
2930 sizeof(key->icmp.type)) ||
2931 fl_dump_key_val(skb, &key->icmp.code,
2932 TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code,
2933 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
2934 sizeof(key->icmp.code))))
2935 goto nla_put_failure;
2936 else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
2937 key->basic.ip_proto == IPPROTO_ICMPV6 &&
2938 (fl_dump_key_val(skb, &key->icmp.type,
2939 TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type,
2940 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
2941 sizeof(key->icmp.type)) ||
2942 fl_dump_key_val(skb, &key->icmp.code,
2943 TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code,
2944 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
2945 sizeof(key->icmp.code))))
2946 goto nla_put_failure;
2947 else if ((key->basic.n_proto == htons(ETH_P_ARP) ||
2948 key->basic.n_proto == htons(ETH_P_RARP)) &&
2949 (fl_dump_key_val(skb, &key->arp.sip,
2950 TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip,
2951 TCA_FLOWER_KEY_ARP_SIP_MASK,
2952 sizeof(key->arp.sip)) ||
2953 fl_dump_key_val(skb, &key->arp.tip,
2954 TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip,
2955 TCA_FLOWER_KEY_ARP_TIP_MASK,
2956 sizeof(key->arp.tip)) ||
2957 fl_dump_key_val(skb, &key->arp.op,
2958 TCA_FLOWER_KEY_ARP_OP, &mask->arp.op,
2959 TCA_FLOWER_KEY_ARP_OP_MASK,
2960 sizeof(key->arp.op)) ||
2961 fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
2962 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
2963 sizeof(key->arp.sha)) ||
2964 fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
2965 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
2966 sizeof(key->arp.tha))))
2967 goto nla_put_failure;
2969 if ((key->basic.ip_proto == IPPROTO_TCP ||
2970 key->basic.ip_proto == IPPROTO_UDP ||
2971 key->basic.ip_proto == IPPROTO_SCTP) &&
2972 fl_dump_key_port_range(skb, key, mask))
2973 goto nla_put_failure;
2975 if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
2976 (fl_dump_key_val(skb, &key->enc_ipv4.src,
2977 TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src,
2978 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
2979 sizeof(key->enc_ipv4.src)) ||
2980 fl_dump_key_val(skb, &key->enc_ipv4.dst,
2981 TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst,
2982 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
2983 sizeof(key->enc_ipv4.dst))))
2984 goto nla_put_failure;
2985 else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
2986 (fl_dump_key_val(skb, &key->enc_ipv6.src,
2987 TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src,
2988 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
2989 sizeof(key->enc_ipv6.src)) ||
2990 fl_dump_key_val(skb, &key->enc_ipv6.dst,
2991 TCA_FLOWER_KEY_ENC_IPV6_DST,
2992 &mask->enc_ipv6.dst,
2993 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
2994 sizeof(key->enc_ipv6.dst))))
2995 goto nla_put_failure;
2997 if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID,
2998 &mask->enc_key_id, TCA_FLOWER_UNSPEC,
2999 sizeof(key->enc_key_id)) ||
3000 fl_dump_key_val(skb, &key->enc_tp.src,
3001 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
3003 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
3004 sizeof(key->enc_tp.src)) ||
3005 fl_dump_key_val(skb, &key->enc_tp.dst,
3006 TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
3008 TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
3009 sizeof(key->enc_tp.dst)) ||
3010 fl_dump_key_ip(skb, true, &key->enc_ip, &mask->enc_ip) ||
3011 fl_dump_key_enc_opt(skb, &key->enc_opts, &mask->enc_opts))
3012 goto nla_put_failure;
3014 if (fl_dump_key_ct(skb, &key->ct, &mask->ct))
3015 goto nla_put_failure;
3017 if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags))
3018 goto nla_put_failure;
3020 if (fl_dump_key_val(skb, &key->hash.hash, TCA_FLOWER_KEY_HASH,
3021 &mask->hash.hash, TCA_FLOWER_KEY_HASH_MASK,
3022 sizeof(key->hash.hash)))
3023 goto nla_put_failure;
3031 static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
3032 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
3034 struct cls_fl_filter *f = fh;
3035 struct nlattr *nest;
3036 struct fl_flow_key *key, *mask;
3042 t->tcm_handle = f->handle;
3044 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
3046 goto nla_put_failure;
3048 spin_lock(&tp->lock);
3050 if (f->res.classid &&
3051 nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid))
3052 goto nla_put_failure_locked;
3055 mask = &f->mask->key;
3056 skip_hw = tc_skip_hw(f->flags);
3058 if (fl_dump_key(skb, net, key, mask))
3059 goto nla_put_failure_locked;
3061 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
3062 goto nla_put_failure_locked;
3064 spin_unlock(&tp->lock);
3067 fl_hw_update_stats(tp, f, rtnl_held);
3069 if (nla_put_u32(skb, TCA_FLOWER_IN_HW_COUNT, f->in_hw_count))
3070 goto nla_put_failure;
3072 if (tcf_exts_dump(skb, &f->exts))
3073 goto nla_put_failure;
3075 nla_nest_end(skb, nest);
3077 if (tcf_exts_dump_stats(skb, &f->exts) < 0)
3078 goto nla_put_failure;
3082 nla_put_failure_locked:
3083 spin_unlock(&tp->lock);
3085 nla_nest_cancel(skb, nest);
3089 static int fl_terse_dump(struct net *net, struct tcf_proto *tp, void *fh,
3090 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
3092 struct cls_fl_filter *f = fh;
3093 struct nlattr *nest;
3099 t->tcm_handle = f->handle;
3101 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
3103 goto nla_put_failure;
3105 spin_lock(&tp->lock);
3107 skip_hw = tc_skip_hw(f->flags);
3109 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
3110 goto nla_put_failure_locked;
3112 spin_unlock(&tp->lock);
3115 fl_hw_update_stats(tp, f, rtnl_held);
3117 if (tcf_exts_terse_dump(skb, &f->exts))
3118 goto nla_put_failure;
3120 nla_nest_end(skb, nest);
3124 nla_put_failure_locked:
3125 spin_unlock(&tp->lock);
3127 nla_nest_cancel(skb, nest);
3131 static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv)
3133 struct fl_flow_tmplt *tmplt = tmplt_priv;
3134 struct fl_flow_key *key, *mask;
3135 struct nlattr *nest;
3137 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
3139 goto nla_put_failure;
3141 key = &tmplt->dummy_key;
3142 mask = &tmplt->mask;
3144 if (fl_dump_key(skb, net, key, mask))
3145 goto nla_put_failure;
3147 nla_nest_end(skb, nest);
3152 nla_nest_cancel(skb, nest);
3156 static void fl_bind_class(void *fh, u32 classid, unsigned long cl, void *q,
3159 struct cls_fl_filter *f = fh;
3161 if (f && f->res.classid == classid) {
3163 __tcf_bind_filter(q, &f->res, base);
3165 __tcf_unbind_filter(q, &f->res);
3169 static bool fl_delete_empty(struct tcf_proto *tp)
3171 struct cls_fl_head *head = fl_head_dereference(tp);
3173 spin_lock(&tp->lock);
3174 tp->deleting = idr_is_empty(&head->handle_idr);
3175 spin_unlock(&tp->lock);
3177 return tp->deleting;
3180 static struct tcf_proto_ops cls_fl_ops __read_mostly = {
3182 .classify = fl_classify,
3184 .destroy = fl_destroy,
3187 .change = fl_change,
3188 .delete = fl_delete,
3189 .delete_empty = fl_delete_empty,
3191 .reoffload = fl_reoffload,
3192 .hw_add = fl_hw_add,
3193 .hw_del = fl_hw_del,
3195 .terse_dump = fl_terse_dump,
3196 .bind_class = fl_bind_class,
3197 .tmplt_create = fl_tmplt_create,
3198 .tmplt_destroy = fl_tmplt_destroy,
3199 .tmplt_dump = fl_tmplt_dump,
3200 .owner = THIS_MODULE,
3201 .flags = TCF_PROTO_OPS_DOIT_UNLOCKED,
3204 static int __init cls_fl_init(void)
3206 return register_tcf_proto_ops(&cls_fl_ops);
3209 static void __exit cls_fl_exit(void)
3211 unregister_tcf_proto_ops(&cls_fl_ops);
3214 module_init(cls_fl_init);
3215 module_exit(cls_fl_exit);
3217 MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
3218 MODULE_DESCRIPTION("Flower classifier");
3219 MODULE_LICENSE("GPL v2");