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 u16 min_mask, max_mask, min_val, max_val;
214 min_mask = ntohs(filter->mask->key.tp_range.tp_min.dst);
215 max_mask = ntohs(filter->mask->key.tp_range.tp_max.dst);
216 min_val = ntohs(filter->key.tp_range.tp_min.dst);
217 max_val = ntohs(filter->key.tp_range.tp_max.dst);
219 if (min_mask && max_mask) {
220 if (ntohs(key->tp_range.tp.dst) < min_val ||
221 ntohs(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 u16 min_mask, max_mask, min_val, max_val;
237 min_mask = ntohs(filter->mask->key.tp_range.tp_min.src);
238 max_mask = ntohs(filter->mask->key.tp_range.tp_max.src);
239 min_val = ntohs(filter->key.tp_range.tp_min.src);
240 max_val = ntohs(filter->key.tp_range.tp_max.src);
242 if (min_mask && max_mask) {
243 if (ntohs(key->tp_range.tp.src) < min_val ||
244 ntohs(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 ntohs(key->tp_range.tp_max.dst) <=
787 ntohs(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 ntohs(key->tp_range.tp_max.src) <=
795 ntohs(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_be32(tb[TCA_FLOWER_KEY_FLAGS]));
1048 mask = be32_to_cpu(nla_get_be32(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");
1420 if (state & TCA_FLOWER_KEY_CT_FLAGS_INVALID &&
1421 state & ~(TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
1422 TCA_FLOWER_KEY_CT_FLAGS_INVALID)) {
1423 NL_SET_ERR_MSG_ATTR(extack, tb,
1424 "when inv is set, only trk may be set");
1428 if (state & TCA_FLOWER_KEY_CT_FLAGS_NEW &&
1429 state & TCA_FLOWER_KEY_CT_FLAGS_REPLY) {
1430 NL_SET_ERR_MSG_ATTR(extack, tb,
1431 "new and rpl are mutually exclusive");
1438 static int fl_set_key_ct(struct nlattr **tb,
1439 struct flow_dissector_key_ct *key,
1440 struct flow_dissector_key_ct *mask,
1441 struct netlink_ext_ack *extack)
1443 if (tb[TCA_FLOWER_KEY_CT_STATE]) {
1446 if (!IS_ENABLED(CONFIG_NF_CONNTRACK)) {
1447 NL_SET_ERR_MSG(extack, "Conntrack isn't enabled");
1450 fl_set_key_val(tb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE,
1451 &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
1452 sizeof(key->ct_state));
1454 err = fl_validate_ct_state(key->ct_state & mask->ct_state,
1455 tb[TCA_FLOWER_KEY_CT_STATE_MASK],
1461 if (tb[TCA_FLOWER_KEY_CT_ZONE]) {
1462 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES)) {
1463 NL_SET_ERR_MSG(extack, "Conntrack zones isn't enabled");
1466 fl_set_key_val(tb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE,
1467 &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK,
1468 sizeof(key->ct_zone));
1470 if (tb[TCA_FLOWER_KEY_CT_MARK]) {
1471 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_MARK)) {
1472 NL_SET_ERR_MSG(extack, "Conntrack mark isn't enabled");
1475 fl_set_key_val(tb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK,
1476 &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK,
1477 sizeof(key->ct_mark));
1479 if (tb[TCA_FLOWER_KEY_CT_LABELS]) {
1480 if (!IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS)) {
1481 NL_SET_ERR_MSG(extack, "Conntrack labels aren't enabled");
1484 fl_set_key_val(tb, key->ct_labels, TCA_FLOWER_KEY_CT_LABELS,
1485 mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK,
1486 sizeof(key->ct_labels));
1492 static int fl_set_key(struct net *net, struct nlattr **tb,
1493 struct fl_flow_key *key, struct fl_flow_key *mask,
1494 struct netlink_ext_ack *extack)
1499 if (tb[TCA_FLOWER_INDEV]) {
1500 int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack);
1503 key->meta.ingress_ifindex = err;
1504 mask->meta.ingress_ifindex = 0xffffffff;
1507 fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
1508 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
1509 sizeof(key->eth.dst));
1510 fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
1511 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
1512 sizeof(key->eth.src));
1514 if (tb[TCA_FLOWER_KEY_ETH_TYPE]) {
1515 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_ETH_TYPE]);
1517 if (eth_type_vlan(ethertype)) {
1518 fl_set_key_vlan(tb, ethertype, TCA_FLOWER_KEY_VLAN_ID,
1519 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan,
1522 if (tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]) {
1523 ethertype = nla_get_be16(tb[TCA_FLOWER_KEY_VLAN_ETH_TYPE]);
1524 if (eth_type_vlan(ethertype)) {
1525 fl_set_key_vlan(tb, ethertype,
1526 TCA_FLOWER_KEY_CVLAN_ID,
1527 TCA_FLOWER_KEY_CVLAN_PRIO,
1528 &key->cvlan, &mask->cvlan);
1529 fl_set_key_val(tb, &key->basic.n_proto,
1530 TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
1531 &mask->basic.n_proto,
1533 sizeof(key->basic.n_proto));
1534 mask->basic.n_proto = cpu_to_be16(0);
1536 key->basic.n_proto = ethertype;
1540 key->basic.n_proto = ethertype;
1544 if (key->basic.n_proto == htons(ETH_P_IP) ||
1545 key->basic.n_proto == htons(ETH_P_IPV6)) {
1546 fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
1547 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
1548 sizeof(key->basic.ip_proto));
1549 fl_set_key_ip(tb, false, &key->ip, &mask->ip);
1552 if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) {
1553 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
1554 mask->control.addr_type = ~0;
1555 fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
1556 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
1557 sizeof(key->ipv4.src));
1558 fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
1559 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
1560 sizeof(key->ipv4.dst));
1561 } else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) {
1562 key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
1563 mask->control.addr_type = ~0;
1564 fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
1565 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
1566 sizeof(key->ipv6.src));
1567 fl_set_key_val(tb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
1568 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
1569 sizeof(key->ipv6.dst));
1572 if (key->basic.ip_proto == IPPROTO_TCP) {
1573 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
1574 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
1575 sizeof(key->tp.src));
1576 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
1577 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
1578 sizeof(key->tp.dst));
1579 fl_set_key_val(tb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
1580 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
1581 sizeof(key->tcp.flags));
1582 } else if (key->basic.ip_proto == IPPROTO_UDP) {
1583 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
1584 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
1585 sizeof(key->tp.src));
1586 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
1587 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
1588 sizeof(key->tp.dst));
1589 } else if (key->basic.ip_proto == IPPROTO_SCTP) {
1590 fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
1591 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
1592 sizeof(key->tp.src));
1593 fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
1594 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
1595 sizeof(key->tp.dst));
1596 } else if (key->basic.n_proto == htons(ETH_P_IP) &&
1597 key->basic.ip_proto == IPPROTO_ICMP) {
1598 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV4_TYPE,
1600 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
1601 sizeof(key->icmp.type));
1602 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV4_CODE,
1604 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
1605 sizeof(key->icmp.code));
1606 } else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
1607 key->basic.ip_proto == IPPROTO_ICMPV6) {
1608 fl_set_key_val(tb, &key->icmp.type, TCA_FLOWER_KEY_ICMPV6_TYPE,
1610 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
1611 sizeof(key->icmp.type));
1612 fl_set_key_val(tb, &key->icmp.code, TCA_FLOWER_KEY_ICMPV6_CODE,
1614 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
1615 sizeof(key->icmp.code));
1616 } else if (key->basic.n_proto == htons(ETH_P_MPLS_UC) ||
1617 key->basic.n_proto == htons(ETH_P_MPLS_MC)) {
1618 ret = fl_set_key_mpls(tb, &key->mpls, &mask->mpls, extack);
1621 } else if (key->basic.n_proto == htons(ETH_P_ARP) ||
1622 key->basic.n_proto == htons(ETH_P_RARP)) {
1623 fl_set_key_val(tb, &key->arp.sip, TCA_FLOWER_KEY_ARP_SIP,
1624 &mask->arp.sip, TCA_FLOWER_KEY_ARP_SIP_MASK,
1625 sizeof(key->arp.sip));
1626 fl_set_key_val(tb, &key->arp.tip, TCA_FLOWER_KEY_ARP_TIP,
1627 &mask->arp.tip, TCA_FLOWER_KEY_ARP_TIP_MASK,
1628 sizeof(key->arp.tip));
1629 fl_set_key_val(tb, &key->arp.op, TCA_FLOWER_KEY_ARP_OP,
1630 &mask->arp.op, TCA_FLOWER_KEY_ARP_OP_MASK,
1631 sizeof(key->arp.op));
1632 fl_set_key_val(tb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
1633 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
1634 sizeof(key->arp.sha));
1635 fl_set_key_val(tb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
1636 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
1637 sizeof(key->arp.tha));
1640 if (key->basic.ip_proto == IPPROTO_TCP ||
1641 key->basic.ip_proto == IPPROTO_UDP ||
1642 key->basic.ip_proto == IPPROTO_SCTP) {
1643 ret = fl_set_key_port_range(tb, key, mask, extack);
1648 if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] ||
1649 tb[TCA_FLOWER_KEY_ENC_IPV4_DST]) {
1650 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
1651 mask->enc_control.addr_type = ~0;
1652 fl_set_key_val(tb, &key->enc_ipv4.src,
1653 TCA_FLOWER_KEY_ENC_IPV4_SRC,
1654 &mask->enc_ipv4.src,
1655 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
1656 sizeof(key->enc_ipv4.src));
1657 fl_set_key_val(tb, &key->enc_ipv4.dst,
1658 TCA_FLOWER_KEY_ENC_IPV4_DST,
1659 &mask->enc_ipv4.dst,
1660 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
1661 sizeof(key->enc_ipv4.dst));
1664 if (tb[TCA_FLOWER_KEY_ENC_IPV6_SRC] ||
1665 tb[TCA_FLOWER_KEY_ENC_IPV6_DST]) {
1666 key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
1667 mask->enc_control.addr_type = ~0;
1668 fl_set_key_val(tb, &key->enc_ipv6.src,
1669 TCA_FLOWER_KEY_ENC_IPV6_SRC,
1670 &mask->enc_ipv6.src,
1671 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
1672 sizeof(key->enc_ipv6.src));
1673 fl_set_key_val(tb, &key->enc_ipv6.dst,
1674 TCA_FLOWER_KEY_ENC_IPV6_DST,
1675 &mask->enc_ipv6.dst,
1676 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
1677 sizeof(key->enc_ipv6.dst));
1680 fl_set_key_val(tb, &key->enc_key_id.keyid, TCA_FLOWER_KEY_ENC_KEY_ID,
1681 &mask->enc_key_id.keyid, TCA_FLOWER_UNSPEC,
1682 sizeof(key->enc_key_id.keyid));
1684 fl_set_key_val(tb, &key->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
1685 &mask->enc_tp.src, TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
1686 sizeof(key->enc_tp.src));
1688 fl_set_key_val(tb, &key->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
1689 &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
1690 sizeof(key->enc_tp.dst));
1692 fl_set_key_ip(tb, true, &key->enc_ip, &mask->enc_ip);
1694 fl_set_key_val(tb, &key->hash.hash, TCA_FLOWER_KEY_HASH,
1695 &mask->hash.hash, TCA_FLOWER_KEY_HASH_MASK,
1696 sizeof(key->hash.hash));
1698 if (tb[TCA_FLOWER_KEY_ENC_OPTS]) {
1699 ret = fl_set_enc_opt(tb, key, mask, extack);
1704 ret = fl_set_key_ct(tb, &key->ct, &mask->ct, extack);
1708 if (tb[TCA_FLOWER_KEY_FLAGS])
1709 ret = fl_set_key_flags(tb, &key->control.flags,
1710 &mask->control.flags, extack);
1715 static void fl_mask_copy(struct fl_flow_mask *dst,
1716 struct fl_flow_mask *src)
1718 const void *psrc = fl_key_get_start(&src->key, src);
1719 void *pdst = fl_key_get_start(&dst->key, src);
1721 memcpy(pdst, psrc, fl_mask_range(src));
1722 dst->range = src->range;
1725 static const struct rhashtable_params fl_ht_params = {
1726 .key_offset = offsetof(struct cls_fl_filter, mkey), /* base offset */
1727 .head_offset = offsetof(struct cls_fl_filter, ht_node),
1728 .automatic_shrinking = true,
1731 static int fl_init_mask_hashtable(struct fl_flow_mask *mask)
1733 mask->filter_ht_params = fl_ht_params;
1734 mask->filter_ht_params.key_len = fl_mask_range(mask);
1735 mask->filter_ht_params.key_offset += mask->range.start;
1737 return rhashtable_init(&mask->ht, &mask->filter_ht_params);
1740 #define FL_KEY_MEMBER_OFFSET(member) offsetof(struct fl_flow_key, member)
1741 #define FL_KEY_MEMBER_SIZE(member) sizeof_field(struct fl_flow_key, member)
1743 #define FL_KEY_IS_MASKED(mask, member) \
1744 memchr_inv(((char *)mask) + FL_KEY_MEMBER_OFFSET(member), \
1745 0, FL_KEY_MEMBER_SIZE(member)) \
1747 #define FL_KEY_SET(keys, cnt, id, member) \
1749 keys[cnt].key_id = id; \
1750 keys[cnt].offset = FL_KEY_MEMBER_OFFSET(member); \
1754 #define FL_KEY_SET_IF_MASKED(mask, keys, cnt, id, member) \
1756 if (FL_KEY_IS_MASKED(mask, member)) \
1757 FL_KEY_SET(keys, cnt, id, member); \
1760 static void fl_init_dissector(struct flow_dissector *dissector,
1761 struct fl_flow_key *mask)
1763 struct flow_dissector_key keys[FLOW_DISSECTOR_KEY_MAX];
1766 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1767 FLOW_DISSECTOR_KEY_META, meta);
1768 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_CONTROL, control);
1769 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_BASIC, basic);
1770 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1771 FLOW_DISSECTOR_KEY_ETH_ADDRS, eth);
1772 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1773 FLOW_DISSECTOR_KEY_IPV4_ADDRS, ipv4);
1774 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1775 FLOW_DISSECTOR_KEY_IPV6_ADDRS, ipv6);
1776 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1777 FLOW_DISSECTOR_KEY_PORTS, tp);
1778 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1779 FLOW_DISSECTOR_KEY_PORTS_RANGE, tp_range);
1780 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1781 FLOW_DISSECTOR_KEY_IP, ip);
1782 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1783 FLOW_DISSECTOR_KEY_TCP, tcp);
1784 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1785 FLOW_DISSECTOR_KEY_ICMP, icmp);
1786 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1787 FLOW_DISSECTOR_KEY_ARP, arp);
1788 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1789 FLOW_DISSECTOR_KEY_MPLS, mpls);
1790 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1791 FLOW_DISSECTOR_KEY_VLAN, vlan);
1792 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1793 FLOW_DISSECTOR_KEY_CVLAN, cvlan);
1794 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1795 FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id);
1796 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1797 FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4);
1798 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1799 FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6);
1800 if (FL_KEY_IS_MASKED(mask, enc_ipv4) ||
1801 FL_KEY_IS_MASKED(mask, enc_ipv6))
1802 FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL,
1804 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1805 FLOW_DISSECTOR_KEY_ENC_PORTS, enc_tp);
1806 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1807 FLOW_DISSECTOR_KEY_ENC_IP, enc_ip);
1808 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1809 FLOW_DISSECTOR_KEY_ENC_OPTS, enc_opts);
1810 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1811 FLOW_DISSECTOR_KEY_CT, ct);
1812 FL_KEY_SET_IF_MASKED(mask, keys, cnt,
1813 FLOW_DISSECTOR_KEY_HASH, hash);
1815 skb_flow_dissector_init(dissector, keys, cnt);
1818 static struct fl_flow_mask *fl_create_new_mask(struct cls_fl_head *head,
1819 struct fl_flow_mask *mask)
1821 struct fl_flow_mask *newmask;
1824 newmask = kzalloc(sizeof(*newmask), GFP_KERNEL);
1826 return ERR_PTR(-ENOMEM);
1828 fl_mask_copy(newmask, mask);
1830 if ((newmask->key.tp_range.tp_min.dst &&
1831 newmask->key.tp_range.tp_max.dst) ||
1832 (newmask->key.tp_range.tp_min.src &&
1833 newmask->key.tp_range.tp_max.src))
1834 newmask->flags |= TCA_FLOWER_MASK_FLAGS_RANGE;
1836 err = fl_init_mask_hashtable(newmask);
1840 fl_init_dissector(&newmask->dissector, &newmask->key);
1842 INIT_LIST_HEAD_RCU(&newmask->filters);
1844 refcount_set(&newmask->refcnt, 1);
1845 err = rhashtable_replace_fast(&head->ht, &mask->ht_node,
1846 &newmask->ht_node, mask_ht_params);
1848 goto errout_destroy;
1850 spin_lock(&head->masks_lock);
1851 list_add_tail_rcu(&newmask->list, &head->masks);
1852 spin_unlock(&head->masks_lock);
1857 rhashtable_destroy(&newmask->ht);
1861 return ERR_PTR(err);
1864 static int fl_check_assign_mask(struct cls_fl_head *head,
1865 struct cls_fl_filter *fnew,
1866 struct cls_fl_filter *fold,
1867 struct fl_flow_mask *mask)
1869 struct fl_flow_mask *newmask;
1874 /* Insert mask as temporary node to prevent concurrent creation of mask
1875 * with same key. Any concurrent lookups with same key will return
1876 * -EAGAIN because mask's refcnt is zero.
1878 fnew->mask = rhashtable_lookup_get_insert_fast(&head->ht,
1886 goto errout_cleanup;
1889 newmask = fl_create_new_mask(head, mask);
1890 if (IS_ERR(newmask)) {
1891 ret = PTR_ERR(newmask);
1892 goto errout_cleanup;
1895 fnew->mask = newmask;
1897 } else if (IS_ERR(fnew->mask)) {
1898 ret = PTR_ERR(fnew->mask);
1899 } else if (fold && fold->mask != fnew->mask) {
1901 } else if (!refcount_inc_not_zero(&fnew->mask->refcnt)) {
1902 /* Mask was deleted concurrently, try again */
1909 rhashtable_remove_fast(&head->ht, &mask->ht_node,
1914 static int fl_set_parms(struct net *net, struct tcf_proto *tp,
1915 struct cls_fl_filter *f, struct fl_flow_mask *mask,
1916 unsigned long base, struct nlattr **tb,
1917 struct nlattr *est, bool ovr,
1918 struct fl_flow_tmplt *tmplt, bool rtnl_held,
1919 struct netlink_ext_ack *extack)
1923 err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr, rtnl_held,
1928 if (tb[TCA_FLOWER_CLASSID]) {
1929 f->res.classid = nla_get_u32(tb[TCA_FLOWER_CLASSID]);
1932 tcf_bind_filter(tp, &f->res, base);
1937 err = fl_set_key(net, tb, &f->key, &mask->key, extack);
1941 fl_mask_update_range(mask);
1942 fl_set_masked_key(&f->mkey, &f->key, mask);
1944 if (!fl_mask_fits_tmplt(tmplt, mask)) {
1945 NL_SET_ERR_MSG_MOD(extack, "Mask does not fit the template");
1952 static int fl_ht_insert_unique(struct cls_fl_filter *fnew,
1953 struct cls_fl_filter *fold,
1956 struct fl_flow_mask *mask = fnew->mask;
1959 err = rhashtable_lookup_insert_fast(&mask->ht,
1961 mask->filter_ht_params);
1964 /* It is okay if filter with same key exists when
1967 return fold && err == -EEXIST ? 0 : err;
1974 static int fl_change(struct net *net, struct sk_buff *in_skb,
1975 struct tcf_proto *tp, unsigned long base,
1976 u32 handle, struct nlattr **tca,
1977 void **arg, bool ovr, bool rtnl_held,
1978 struct netlink_ext_ack *extack)
1980 struct cls_fl_head *head = fl_head_dereference(tp);
1981 struct cls_fl_filter *fold = *arg;
1982 struct cls_fl_filter *fnew;
1983 struct fl_flow_mask *mask;
1988 if (!tca[TCA_OPTIONS]) {
1993 mask = kzalloc(sizeof(struct fl_flow_mask), GFP_KERNEL);
1999 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
2002 goto errout_mask_alloc;
2005 err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX,
2006 tca[TCA_OPTIONS], fl_policy, NULL);
2010 if (fold && handle && fold->handle != handle) {
2015 fnew = kzalloc(sizeof(*fnew), GFP_KERNEL);
2020 INIT_LIST_HEAD(&fnew->hw_list);
2021 refcount_set(&fnew->refcnt, 1);
2023 err = tcf_exts_init(&fnew->exts, net, TCA_FLOWER_ACT, 0);
2027 if (tb[TCA_FLOWER_FLAGS]) {
2028 fnew->flags = nla_get_u32(tb[TCA_FLOWER_FLAGS]);
2030 if (!tc_flags_valid(fnew->flags)) {
2036 err = fl_set_parms(net, tp, fnew, mask, base, tb, tca[TCA_RATE], ovr,
2037 tp->chain->tmplt_priv, rtnl_held, extack);
2041 err = fl_check_assign_mask(head, fnew, fold, mask);
2045 err = fl_ht_insert_unique(fnew, fold, &in_ht);
2049 if (!tc_skip_hw(fnew->flags)) {
2050 err = fl_hw_replace_filter(tp, fnew, rtnl_held, extack);
2055 if (!tc_in_hw(fnew->flags))
2056 fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
2058 spin_lock(&tp->lock);
2060 /* tp was deleted concurrently. -EAGAIN will cause caller to lookup
2061 * proto again or create new one, if necessary.
2069 /* Fold filter was deleted concurrently. Retry lookup. */
2070 if (fold->deleted) {
2075 fnew->handle = handle;
2078 struct rhashtable_params params =
2079 fnew->mask->filter_ht_params;
2081 err = rhashtable_insert_fast(&fnew->mask->ht,
2089 refcount_inc(&fnew->refcnt);
2090 rhashtable_remove_fast(&fold->mask->ht,
2092 fold->mask->filter_ht_params);
2093 idr_replace(&head->handle_idr, fnew, fnew->handle);
2094 list_replace_rcu(&fold->list, &fnew->list);
2095 fold->deleted = true;
2097 spin_unlock(&tp->lock);
2099 fl_mask_put(head, fold->mask);
2100 if (!tc_skip_hw(fold->flags))
2101 fl_hw_destroy_filter(tp, fold, rtnl_held, NULL);
2102 tcf_unbind_filter(tp, &fold->res);
2103 /* Caller holds reference to fold, so refcnt is always > 0
2106 refcount_dec(&fold->refcnt);
2110 /* user specifies a handle and it doesn't exist */
2111 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
2112 handle, GFP_ATOMIC);
2114 /* Filter with specified handle was concurrently
2115 * inserted after initial check in cls_api. This is not
2116 * necessarily an error if NLM_F_EXCL is not set in
2117 * message flags. Returning EAGAIN will cause cls_api to
2118 * try to update concurrently inserted rule.
2124 err = idr_alloc_u32(&head->handle_idr, fnew, &handle,
2125 INT_MAX, GFP_ATOMIC);
2130 refcount_inc(&fnew->refcnt);
2131 fnew->handle = handle;
2132 list_add_tail_rcu(&fnew->list, &fnew->mask->filters);
2133 spin_unlock(&tp->lock);
2139 tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work);
2143 spin_lock(&tp->lock);
2145 fnew->deleted = true;
2146 spin_unlock(&tp->lock);
2147 if (!tc_skip_hw(fnew->flags))
2148 fl_hw_destroy_filter(tp, fnew, rtnl_held, NULL);
2150 rhashtable_remove_fast(&fnew->mask->ht, &fnew->ht_node,
2151 fnew->mask->filter_ht_params);
2153 fl_mask_put(head, fnew->mask);
2159 tcf_queue_work(&mask->rwork, fl_uninit_mask_free_work);
2166 static int fl_delete(struct tcf_proto *tp, void *arg, bool *last,
2167 bool rtnl_held, struct netlink_ext_ack *extack)
2169 struct cls_fl_head *head = fl_head_dereference(tp);
2170 struct cls_fl_filter *f = arg;
2174 err = __fl_delete(tp, f, &last_on_mask, rtnl_held, extack);
2175 *last = list_empty(&head->masks);
2181 static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg,
2184 struct cls_fl_head *head = fl_head_dereference(tp);
2185 unsigned long id = arg->cookie, tmp;
2186 struct cls_fl_filter *f;
2188 arg->count = arg->skip;
2190 idr_for_each_entry_continue_ul(&head->handle_idr, f, tmp, id) {
2191 /* don't return filters that are being deleted */
2192 if (!refcount_inc_not_zero(&f->refcnt))
2194 if (arg->fn(tp, f, arg) < 0) {
2205 static struct cls_fl_filter *
2206 fl_get_next_hw_filter(struct tcf_proto *tp, struct cls_fl_filter *f, bool add)
2208 struct cls_fl_head *head = fl_head_dereference(tp);
2210 spin_lock(&tp->lock);
2211 if (list_empty(&head->hw_filters)) {
2212 spin_unlock(&tp->lock);
2217 f = list_entry(&head->hw_filters, struct cls_fl_filter,
2219 list_for_each_entry_continue(f, &head->hw_filters, hw_list) {
2220 if (!(add && f->deleted) && refcount_inc_not_zero(&f->refcnt)) {
2221 spin_unlock(&tp->lock);
2226 spin_unlock(&tp->lock);
2230 static int fl_reoffload(struct tcf_proto *tp, bool add, flow_setup_cb_t *cb,
2231 void *cb_priv, struct netlink_ext_ack *extack)
2233 struct tcf_block *block = tp->chain->block;
2234 struct flow_cls_offload cls_flower = {};
2235 struct cls_fl_filter *f = NULL;
2238 /* hw_filters list can only be changed by hw offload functions after
2239 * obtaining rtnl lock. Make sure it is not changed while reoffload is
2244 while ((f = fl_get_next_hw_filter(tp, f, add))) {
2246 flow_rule_alloc(tcf_exts_num_actions(&f->exts));
2247 if (!cls_flower.rule) {
2252 tc_cls_common_offload_init(&cls_flower.common, tp, f->flags,
2254 cls_flower.command = add ?
2255 FLOW_CLS_REPLACE : FLOW_CLS_DESTROY;
2256 cls_flower.cookie = (unsigned long)f;
2257 cls_flower.rule->match.dissector = &f->mask->dissector;
2258 cls_flower.rule->match.mask = &f->mask->key;
2259 cls_flower.rule->match.key = &f->mkey;
2261 err = tc_setup_flow_action(&cls_flower.rule->action, &f->exts);
2263 kfree(cls_flower.rule);
2264 if (tc_skip_sw(f->flags)) {
2265 NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action");
2272 cls_flower.classid = f->res.classid;
2274 err = tc_setup_cb_reoffload(block, tp, add, cb,
2275 TC_SETUP_CLSFLOWER, &cls_flower,
2278 tc_cleanup_flow_action(&cls_flower.rule->action);
2279 kfree(cls_flower.rule);
2292 static void fl_hw_add(struct tcf_proto *tp, void *type_data)
2294 struct flow_cls_offload *cls_flower = type_data;
2295 struct cls_fl_filter *f =
2296 (struct cls_fl_filter *) cls_flower->cookie;
2297 struct cls_fl_head *head = fl_head_dereference(tp);
2299 spin_lock(&tp->lock);
2300 list_add(&f->hw_list, &head->hw_filters);
2301 spin_unlock(&tp->lock);
2304 static void fl_hw_del(struct tcf_proto *tp, void *type_data)
2306 struct flow_cls_offload *cls_flower = type_data;
2307 struct cls_fl_filter *f =
2308 (struct cls_fl_filter *) cls_flower->cookie;
2310 spin_lock(&tp->lock);
2311 if (!list_empty(&f->hw_list))
2312 list_del_init(&f->hw_list);
2313 spin_unlock(&tp->lock);
2316 static int fl_hw_create_tmplt(struct tcf_chain *chain,
2317 struct fl_flow_tmplt *tmplt)
2319 struct flow_cls_offload cls_flower = {};
2320 struct tcf_block *block = chain->block;
2322 cls_flower.rule = flow_rule_alloc(0);
2323 if (!cls_flower.rule)
2326 cls_flower.common.chain_index = chain->index;
2327 cls_flower.command = FLOW_CLS_TMPLT_CREATE;
2328 cls_flower.cookie = (unsigned long) tmplt;
2329 cls_flower.rule->match.dissector = &tmplt->dissector;
2330 cls_flower.rule->match.mask = &tmplt->mask;
2331 cls_flower.rule->match.key = &tmplt->dummy_key;
2333 /* We don't care if driver (any of them) fails to handle this
2334 * call. It serves just as a hint for it.
2336 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true);
2337 kfree(cls_flower.rule);
2342 static void fl_hw_destroy_tmplt(struct tcf_chain *chain,
2343 struct fl_flow_tmplt *tmplt)
2345 struct flow_cls_offload cls_flower = {};
2346 struct tcf_block *block = chain->block;
2348 cls_flower.common.chain_index = chain->index;
2349 cls_flower.command = FLOW_CLS_TMPLT_DESTROY;
2350 cls_flower.cookie = (unsigned long) tmplt;
2352 tc_setup_cb_call(block, TC_SETUP_CLSFLOWER, &cls_flower, false, true);
2355 static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain,
2356 struct nlattr **tca,
2357 struct netlink_ext_ack *extack)
2359 struct fl_flow_tmplt *tmplt;
2363 if (!tca[TCA_OPTIONS])
2364 return ERR_PTR(-EINVAL);
2366 tb = kcalloc(TCA_FLOWER_MAX + 1, sizeof(struct nlattr *), GFP_KERNEL);
2368 return ERR_PTR(-ENOBUFS);
2369 err = nla_parse_nested_deprecated(tb, TCA_FLOWER_MAX,
2370 tca[TCA_OPTIONS], fl_policy, NULL);
2374 tmplt = kzalloc(sizeof(*tmplt), GFP_KERNEL);
2379 tmplt->chain = chain;
2380 err = fl_set_key(net, tb, &tmplt->dummy_key, &tmplt->mask, extack);
2384 fl_init_dissector(&tmplt->dissector, &tmplt->mask);
2386 err = fl_hw_create_tmplt(chain, tmplt);
2397 return ERR_PTR(err);
2400 static void fl_tmplt_destroy(void *tmplt_priv)
2402 struct fl_flow_tmplt *tmplt = tmplt_priv;
2404 fl_hw_destroy_tmplt(tmplt->chain, tmplt);
2408 static int fl_dump_key_val(struct sk_buff *skb,
2409 void *val, int val_type,
2410 void *mask, int mask_type, int len)
2414 if (!memchr_inv(mask, 0, len))
2416 err = nla_put(skb, val_type, len, val);
2419 if (mask_type != TCA_FLOWER_UNSPEC) {
2420 err = nla_put(skb, mask_type, len, mask);
2427 static int fl_dump_key_port_range(struct sk_buff *skb, struct fl_flow_key *key,
2428 struct fl_flow_key *mask)
2430 if (fl_dump_key_val(skb, &key->tp_range.tp_min.dst,
2431 TCA_FLOWER_KEY_PORT_DST_MIN,
2432 &mask->tp_range.tp_min.dst, TCA_FLOWER_UNSPEC,
2433 sizeof(key->tp_range.tp_min.dst)) ||
2434 fl_dump_key_val(skb, &key->tp_range.tp_max.dst,
2435 TCA_FLOWER_KEY_PORT_DST_MAX,
2436 &mask->tp_range.tp_max.dst, TCA_FLOWER_UNSPEC,
2437 sizeof(key->tp_range.tp_max.dst)) ||
2438 fl_dump_key_val(skb, &key->tp_range.tp_min.src,
2439 TCA_FLOWER_KEY_PORT_SRC_MIN,
2440 &mask->tp_range.tp_min.src, TCA_FLOWER_UNSPEC,
2441 sizeof(key->tp_range.tp_min.src)) ||
2442 fl_dump_key_val(skb, &key->tp_range.tp_max.src,
2443 TCA_FLOWER_KEY_PORT_SRC_MAX,
2444 &mask->tp_range.tp_max.src, TCA_FLOWER_UNSPEC,
2445 sizeof(key->tp_range.tp_max.src)))
2451 static int fl_dump_key_mpls_opt_lse(struct sk_buff *skb,
2452 struct flow_dissector_key_mpls *mpls_key,
2453 struct flow_dissector_key_mpls *mpls_mask,
2456 struct flow_dissector_mpls_lse *lse_mask = &mpls_mask->ls[lse_index];
2457 struct flow_dissector_mpls_lse *lse_key = &mpls_key->ls[lse_index];
2460 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_DEPTH,
2465 if (lse_mask->mpls_ttl) {
2466 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_TTL,
2471 if (lse_mask->mpls_bos) {
2472 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_BOS,
2477 if (lse_mask->mpls_tc) {
2478 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_TC,
2483 if (lse_mask->mpls_label) {
2484 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL,
2485 lse_key->mpls_label);
2493 static int fl_dump_key_mpls_opts(struct sk_buff *skb,
2494 struct flow_dissector_key_mpls *mpls_key,
2495 struct flow_dissector_key_mpls *mpls_mask)
2497 struct nlattr *opts;
2502 opts = nla_nest_start(skb, TCA_FLOWER_KEY_MPLS_OPTS);
2506 for (lse_index = 0; lse_index < FLOW_DIS_MPLS_MAX; lse_index++) {
2507 if (!(mpls_mask->used_lses & 1 << lse_index))
2510 lse = nla_nest_start(skb, TCA_FLOWER_KEY_MPLS_OPTS_LSE);
2516 err = fl_dump_key_mpls_opt_lse(skb, mpls_key, mpls_mask,
2520 nla_nest_end(skb, lse);
2522 nla_nest_end(skb, opts);
2527 nla_nest_cancel(skb, lse);
2529 nla_nest_cancel(skb, opts);
2534 static int fl_dump_key_mpls(struct sk_buff *skb,
2535 struct flow_dissector_key_mpls *mpls_key,
2536 struct flow_dissector_key_mpls *mpls_mask)
2538 struct flow_dissector_mpls_lse *lse_mask;
2539 struct flow_dissector_mpls_lse *lse_key;
2542 if (!mpls_mask->used_lses)
2545 lse_mask = &mpls_mask->ls[0];
2546 lse_key = &mpls_key->ls[0];
2548 /* For backward compatibility, don't use the MPLS nested attributes if
2549 * the rule can be expressed using the old attributes.
2551 if (mpls_mask->used_lses & ~1 ||
2552 (!lse_mask->mpls_ttl && !lse_mask->mpls_bos &&
2553 !lse_mask->mpls_tc && !lse_mask->mpls_label))
2554 return fl_dump_key_mpls_opts(skb, mpls_key, mpls_mask);
2556 if (lse_mask->mpls_ttl) {
2557 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TTL,
2562 if (lse_mask->mpls_tc) {
2563 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_TC,
2568 if (lse_mask->mpls_label) {
2569 err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_LABEL,
2570 lse_key->mpls_label);
2574 if (lse_mask->mpls_bos) {
2575 err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_BOS,
2583 static int fl_dump_key_ip(struct sk_buff *skb, bool encap,
2584 struct flow_dissector_key_ip *key,
2585 struct flow_dissector_key_ip *mask)
2587 int tos_key = encap ? TCA_FLOWER_KEY_ENC_IP_TOS : TCA_FLOWER_KEY_IP_TOS;
2588 int ttl_key = encap ? TCA_FLOWER_KEY_ENC_IP_TTL : TCA_FLOWER_KEY_IP_TTL;
2589 int tos_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TOS_MASK : TCA_FLOWER_KEY_IP_TOS_MASK;
2590 int ttl_mask = encap ? TCA_FLOWER_KEY_ENC_IP_TTL_MASK : TCA_FLOWER_KEY_IP_TTL_MASK;
2592 if (fl_dump_key_val(skb, &key->tos, tos_key, &mask->tos, tos_mask, sizeof(key->tos)) ||
2593 fl_dump_key_val(skb, &key->ttl, ttl_key, &mask->ttl, ttl_mask, sizeof(key->ttl)))
2599 static int fl_dump_key_vlan(struct sk_buff *skb,
2600 int vlan_id_key, int vlan_prio_key,
2601 struct flow_dissector_key_vlan *vlan_key,
2602 struct flow_dissector_key_vlan *vlan_mask)
2606 if (!memchr_inv(vlan_mask, 0, sizeof(*vlan_mask)))
2608 if (vlan_mask->vlan_id) {
2609 err = nla_put_u16(skb, vlan_id_key,
2614 if (vlan_mask->vlan_priority) {
2615 err = nla_put_u8(skb, vlan_prio_key,
2616 vlan_key->vlan_priority);
2623 static void fl_get_key_flag(u32 dissector_key, u32 dissector_mask,
2624 u32 *flower_key, u32 *flower_mask,
2625 u32 flower_flag_bit, u32 dissector_flag_bit)
2627 if (dissector_mask & dissector_flag_bit) {
2628 *flower_mask |= flower_flag_bit;
2629 if (dissector_key & dissector_flag_bit)
2630 *flower_key |= flower_flag_bit;
2634 static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask)
2640 if (!memchr_inv(&flags_mask, 0, sizeof(flags_mask)))
2646 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
2647 TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
2648 fl_get_key_flag(flags_key, flags_mask, &key, &mask,
2649 TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,
2650 FLOW_DIS_FIRST_FRAG);
2652 _key = cpu_to_be32(key);
2653 _mask = cpu_to_be32(mask);
2655 err = nla_put(skb, TCA_FLOWER_KEY_FLAGS, 4, &_key);
2659 return nla_put(skb, TCA_FLOWER_KEY_FLAGS_MASK, 4, &_mask);
2662 static int fl_dump_key_geneve_opt(struct sk_buff *skb,
2663 struct flow_dissector_key_enc_opts *enc_opts)
2665 struct geneve_opt *opt;
2666 struct nlattr *nest;
2669 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE);
2671 goto nla_put_failure;
2673 while (enc_opts->len > opt_off) {
2674 opt = (struct geneve_opt *)&enc_opts->data[opt_off];
2676 if (nla_put_be16(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_CLASS,
2678 goto nla_put_failure;
2679 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_TYPE,
2681 goto nla_put_failure;
2682 if (nla_put(skb, TCA_FLOWER_KEY_ENC_OPT_GENEVE_DATA,
2683 opt->length * 4, opt->opt_data))
2684 goto nla_put_failure;
2686 opt_off += sizeof(struct geneve_opt) + opt->length * 4;
2688 nla_nest_end(skb, nest);
2692 nla_nest_cancel(skb, nest);
2696 static int fl_dump_key_vxlan_opt(struct sk_buff *skb,
2697 struct flow_dissector_key_enc_opts *enc_opts)
2699 struct vxlan_metadata *md;
2700 struct nlattr *nest;
2702 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_VXLAN);
2704 goto nla_put_failure;
2706 md = (struct vxlan_metadata *)&enc_opts->data[0];
2707 if (nla_put_u32(skb, TCA_FLOWER_KEY_ENC_OPT_VXLAN_GBP, md->gbp))
2708 goto nla_put_failure;
2710 nla_nest_end(skb, nest);
2714 nla_nest_cancel(skb, nest);
2718 static int fl_dump_key_erspan_opt(struct sk_buff *skb,
2719 struct flow_dissector_key_enc_opts *enc_opts)
2721 struct erspan_metadata *md;
2722 struct nlattr *nest;
2724 nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_ERSPAN);
2726 goto nla_put_failure;
2728 md = (struct erspan_metadata *)&enc_opts->data[0];
2729 if (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_VER, md->version))
2730 goto nla_put_failure;
2732 if (md->version == 1 &&
2733 nla_put_be32(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_INDEX, md->u.index))
2734 goto nla_put_failure;
2736 if (md->version == 2 &&
2737 (nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_DIR,
2739 nla_put_u8(skb, TCA_FLOWER_KEY_ENC_OPT_ERSPAN_HWID,
2740 get_hwid(&md->u.md2))))
2741 goto nla_put_failure;
2743 nla_nest_end(skb, nest);
2747 nla_nest_cancel(skb, nest);
2751 static int fl_dump_key_ct(struct sk_buff *skb,
2752 struct flow_dissector_key_ct *key,
2753 struct flow_dissector_key_ct *mask)
2755 if (IS_ENABLED(CONFIG_NF_CONNTRACK) &&
2756 fl_dump_key_val(skb, &key->ct_state, TCA_FLOWER_KEY_CT_STATE,
2757 &mask->ct_state, TCA_FLOWER_KEY_CT_STATE_MASK,
2758 sizeof(key->ct_state)))
2759 goto nla_put_failure;
2761 if (IS_ENABLED(CONFIG_NF_CONNTRACK_ZONES) &&
2762 fl_dump_key_val(skb, &key->ct_zone, TCA_FLOWER_KEY_CT_ZONE,
2763 &mask->ct_zone, TCA_FLOWER_KEY_CT_ZONE_MASK,
2764 sizeof(key->ct_zone)))
2765 goto nla_put_failure;
2767 if (IS_ENABLED(CONFIG_NF_CONNTRACK_MARK) &&
2768 fl_dump_key_val(skb, &key->ct_mark, TCA_FLOWER_KEY_CT_MARK,
2769 &mask->ct_mark, TCA_FLOWER_KEY_CT_MARK_MASK,
2770 sizeof(key->ct_mark)))
2771 goto nla_put_failure;
2773 if (IS_ENABLED(CONFIG_NF_CONNTRACK_LABELS) &&
2774 fl_dump_key_val(skb, &key->ct_labels, TCA_FLOWER_KEY_CT_LABELS,
2775 &mask->ct_labels, TCA_FLOWER_KEY_CT_LABELS_MASK,
2776 sizeof(key->ct_labels)))
2777 goto nla_put_failure;
2785 static int fl_dump_key_options(struct sk_buff *skb, int enc_opt_type,
2786 struct flow_dissector_key_enc_opts *enc_opts)
2788 struct nlattr *nest;
2794 nest = nla_nest_start_noflag(skb, enc_opt_type);
2796 goto nla_put_failure;
2798 switch (enc_opts->dst_opt_type) {
2799 case TUNNEL_GENEVE_OPT:
2800 err = fl_dump_key_geneve_opt(skb, enc_opts);
2802 goto nla_put_failure;
2804 case TUNNEL_VXLAN_OPT:
2805 err = fl_dump_key_vxlan_opt(skb, enc_opts);
2807 goto nla_put_failure;
2809 case TUNNEL_ERSPAN_OPT:
2810 err = fl_dump_key_erspan_opt(skb, enc_opts);
2812 goto nla_put_failure;
2815 goto nla_put_failure;
2817 nla_nest_end(skb, nest);
2821 nla_nest_cancel(skb, nest);
2825 static int fl_dump_key_enc_opt(struct sk_buff *skb,
2826 struct flow_dissector_key_enc_opts *key_opts,
2827 struct flow_dissector_key_enc_opts *msk_opts)
2831 err = fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS, key_opts);
2835 return fl_dump_key_options(skb, TCA_FLOWER_KEY_ENC_OPTS_MASK, msk_opts);
2838 static int fl_dump_key(struct sk_buff *skb, struct net *net,
2839 struct fl_flow_key *key, struct fl_flow_key *mask)
2841 if (mask->meta.ingress_ifindex) {
2842 struct net_device *dev;
2844 dev = __dev_get_by_index(net, key->meta.ingress_ifindex);
2845 if (dev && nla_put_string(skb, TCA_FLOWER_INDEV, dev->name))
2846 goto nla_put_failure;
2849 if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
2850 mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
2851 sizeof(key->eth.dst)) ||
2852 fl_dump_key_val(skb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
2853 mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
2854 sizeof(key->eth.src)) ||
2855 fl_dump_key_val(skb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE,
2856 &mask->basic.n_proto, TCA_FLOWER_UNSPEC,
2857 sizeof(key->basic.n_proto)))
2858 goto nla_put_failure;
2860 if (fl_dump_key_mpls(skb, &key->mpls, &mask->mpls))
2861 goto nla_put_failure;
2863 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_VLAN_ID,
2864 TCA_FLOWER_KEY_VLAN_PRIO, &key->vlan, &mask->vlan))
2865 goto nla_put_failure;
2867 if (fl_dump_key_vlan(skb, TCA_FLOWER_KEY_CVLAN_ID,
2868 TCA_FLOWER_KEY_CVLAN_PRIO,
2869 &key->cvlan, &mask->cvlan) ||
2870 (mask->cvlan.vlan_tpid &&
2871 nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
2872 key->cvlan.vlan_tpid)))
2873 goto nla_put_failure;
2875 if (mask->basic.n_proto) {
2876 if (mask->cvlan.vlan_tpid) {
2877 if (nla_put_be16(skb, TCA_FLOWER_KEY_CVLAN_ETH_TYPE,
2878 key->basic.n_proto))
2879 goto nla_put_failure;
2880 } else if (mask->vlan.vlan_tpid) {
2881 if (nla_put_be16(skb, TCA_FLOWER_KEY_VLAN_ETH_TYPE,
2882 key->basic.n_proto))
2883 goto nla_put_failure;
2887 if ((key->basic.n_proto == htons(ETH_P_IP) ||
2888 key->basic.n_proto == htons(ETH_P_IPV6)) &&
2889 (fl_dump_key_val(skb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
2890 &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
2891 sizeof(key->basic.ip_proto)) ||
2892 fl_dump_key_ip(skb, false, &key->ip, &mask->ip)))
2893 goto nla_put_failure;
2895 if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
2896 (fl_dump_key_val(skb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
2897 &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
2898 sizeof(key->ipv4.src)) ||
2899 fl_dump_key_val(skb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
2900 &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
2901 sizeof(key->ipv4.dst))))
2902 goto nla_put_failure;
2903 else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
2904 (fl_dump_key_val(skb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
2905 &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
2906 sizeof(key->ipv6.src)) ||
2907 fl_dump_key_val(skb, &key->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST,
2908 &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
2909 sizeof(key->ipv6.dst))))
2910 goto nla_put_failure;
2912 if (key->basic.ip_proto == IPPROTO_TCP &&
2913 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
2914 &mask->tp.src, TCA_FLOWER_KEY_TCP_SRC_MASK,
2915 sizeof(key->tp.src)) ||
2916 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_TCP_DST,
2917 &mask->tp.dst, TCA_FLOWER_KEY_TCP_DST_MASK,
2918 sizeof(key->tp.dst)) ||
2919 fl_dump_key_val(skb, &key->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS,
2920 &mask->tcp.flags, TCA_FLOWER_KEY_TCP_FLAGS_MASK,
2921 sizeof(key->tcp.flags))))
2922 goto nla_put_failure;
2923 else if (key->basic.ip_proto == IPPROTO_UDP &&
2924 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_UDP_SRC,
2925 &mask->tp.src, TCA_FLOWER_KEY_UDP_SRC_MASK,
2926 sizeof(key->tp.src)) ||
2927 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
2928 &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
2929 sizeof(key->tp.dst))))
2930 goto nla_put_failure;
2931 else if (key->basic.ip_proto == IPPROTO_SCTP &&
2932 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
2933 &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
2934 sizeof(key->tp.src)) ||
2935 fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
2936 &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
2937 sizeof(key->tp.dst))))
2938 goto nla_put_failure;
2939 else if (key->basic.n_proto == htons(ETH_P_IP) &&
2940 key->basic.ip_proto == IPPROTO_ICMP &&
2941 (fl_dump_key_val(skb, &key->icmp.type,
2942 TCA_FLOWER_KEY_ICMPV4_TYPE, &mask->icmp.type,
2943 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK,
2944 sizeof(key->icmp.type)) ||
2945 fl_dump_key_val(skb, &key->icmp.code,
2946 TCA_FLOWER_KEY_ICMPV4_CODE, &mask->icmp.code,
2947 TCA_FLOWER_KEY_ICMPV4_CODE_MASK,
2948 sizeof(key->icmp.code))))
2949 goto nla_put_failure;
2950 else if (key->basic.n_proto == htons(ETH_P_IPV6) &&
2951 key->basic.ip_proto == IPPROTO_ICMPV6 &&
2952 (fl_dump_key_val(skb, &key->icmp.type,
2953 TCA_FLOWER_KEY_ICMPV6_TYPE, &mask->icmp.type,
2954 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,
2955 sizeof(key->icmp.type)) ||
2956 fl_dump_key_val(skb, &key->icmp.code,
2957 TCA_FLOWER_KEY_ICMPV6_CODE, &mask->icmp.code,
2958 TCA_FLOWER_KEY_ICMPV6_CODE_MASK,
2959 sizeof(key->icmp.code))))
2960 goto nla_put_failure;
2961 else if ((key->basic.n_proto == htons(ETH_P_ARP) ||
2962 key->basic.n_proto == htons(ETH_P_RARP)) &&
2963 (fl_dump_key_val(skb, &key->arp.sip,
2964 TCA_FLOWER_KEY_ARP_SIP, &mask->arp.sip,
2965 TCA_FLOWER_KEY_ARP_SIP_MASK,
2966 sizeof(key->arp.sip)) ||
2967 fl_dump_key_val(skb, &key->arp.tip,
2968 TCA_FLOWER_KEY_ARP_TIP, &mask->arp.tip,
2969 TCA_FLOWER_KEY_ARP_TIP_MASK,
2970 sizeof(key->arp.tip)) ||
2971 fl_dump_key_val(skb, &key->arp.op,
2972 TCA_FLOWER_KEY_ARP_OP, &mask->arp.op,
2973 TCA_FLOWER_KEY_ARP_OP_MASK,
2974 sizeof(key->arp.op)) ||
2975 fl_dump_key_val(skb, key->arp.sha, TCA_FLOWER_KEY_ARP_SHA,
2976 mask->arp.sha, TCA_FLOWER_KEY_ARP_SHA_MASK,
2977 sizeof(key->arp.sha)) ||
2978 fl_dump_key_val(skb, key->arp.tha, TCA_FLOWER_KEY_ARP_THA,
2979 mask->arp.tha, TCA_FLOWER_KEY_ARP_THA_MASK,
2980 sizeof(key->arp.tha))))
2981 goto nla_put_failure;
2983 if ((key->basic.ip_proto == IPPROTO_TCP ||
2984 key->basic.ip_proto == IPPROTO_UDP ||
2985 key->basic.ip_proto == IPPROTO_SCTP) &&
2986 fl_dump_key_port_range(skb, key, mask))
2987 goto nla_put_failure;
2989 if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
2990 (fl_dump_key_val(skb, &key->enc_ipv4.src,
2991 TCA_FLOWER_KEY_ENC_IPV4_SRC, &mask->enc_ipv4.src,
2992 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
2993 sizeof(key->enc_ipv4.src)) ||
2994 fl_dump_key_val(skb, &key->enc_ipv4.dst,
2995 TCA_FLOWER_KEY_ENC_IPV4_DST, &mask->enc_ipv4.dst,
2996 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
2997 sizeof(key->enc_ipv4.dst))))
2998 goto nla_put_failure;
2999 else if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS &&
3000 (fl_dump_key_val(skb, &key->enc_ipv6.src,
3001 TCA_FLOWER_KEY_ENC_IPV6_SRC, &mask->enc_ipv6.src,
3002 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
3003 sizeof(key->enc_ipv6.src)) ||
3004 fl_dump_key_val(skb, &key->enc_ipv6.dst,
3005 TCA_FLOWER_KEY_ENC_IPV6_DST,
3006 &mask->enc_ipv6.dst,
3007 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
3008 sizeof(key->enc_ipv6.dst))))
3009 goto nla_put_failure;
3011 if (fl_dump_key_val(skb, &key->enc_key_id, TCA_FLOWER_KEY_ENC_KEY_ID,
3012 &mask->enc_key_id, TCA_FLOWER_UNSPEC,
3013 sizeof(key->enc_key_id)) ||
3014 fl_dump_key_val(skb, &key->enc_tp.src,
3015 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT,
3017 TCA_FLOWER_KEY_ENC_UDP_SRC_PORT_MASK,
3018 sizeof(key->enc_tp.src)) ||
3019 fl_dump_key_val(skb, &key->enc_tp.dst,
3020 TCA_FLOWER_KEY_ENC_UDP_DST_PORT,
3022 TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
3023 sizeof(key->enc_tp.dst)) ||
3024 fl_dump_key_ip(skb, true, &key->enc_ip, &mask->enc_ip) ||
3025 fl_dump_key_enc_opt(skb, &key->enc_opts, &mask->enc_opts))
3026 goto nla_put_failure;
3028 if (fl_dump_key_ct(skb, &key->ct, &mask->ct))
3029 goto nla_put_failure;
3031 if (fl_dump_key_flags(skb, key->control.flags, mask->control.flags))
3032 goto nla_put_failure;
3034 if (fl_dump_key_val(skb, &key->hash.hash, TCA_FLOWER_KEY_HASH,
3035 &mask->hash.hash, TCA_FLOWER_KEY_HASH_MASK,
3036 sizeof(key->hash.hash)))
3037 goto nla_put_failure;
3045 static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
3046 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
3048 struct cls_fl_filter *f = fh;
3049 struct nlattr *nest;
3050 struct fl_flow_key *key, *mask;
3056 t->tcm_handle = f->handle;
3058 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
3060 goto nla_put_failure;
3062 spin_lock(&tp->lock);
3064 if (f->res.classid &&
3065 nla_put_u32(skb, TCA_FLOWER_CLASSID, f->res.classid))
3066 goto nla_put_failure_locked;
3069 mask = &f->mask->key;
3070 skip_hw = tc_skip_hw(f->flags);
3072 if (fl_dump_key(skb, net, key, mask))
3073 goto nla_put_failure_locked;
3075 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
3076 goto nla_put_failure_locked;
3078 spin_unlock(&tp->lock);
3081 fl_hw_update_stats(tp, f, rtnl_held);
3083 if (nla_put_u32(skb, TCA_FLOWER_IN_HW_COUNT, f->in_hw_count))
3084 goto nla_put_failure;
3086 if (tcf_exts_dump(skb, &f->exts))
3087 goto nla_put_failure;
3089 nla_nest_end(skb, nest);
3091 if (tcf_exts_dump_stats(skb, &f->exts) < 0)
3092 goto nla_put_failure;
3096 nla_put_failure_locked:
3097 spin_unlock(&tp->lock);
3099 nla_nest_cancel(skb, nest);
3103 static int fl_terse_dump(struct net *net, struct tcf_proto *tp, void *fh,
3104 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
3106 struct cls_fl_filter *f = fh;
3107 struct nlattr *nest;
3113 t->tcm_handle = f->handle;
3115 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
3117 goto nla_put_failure;
3119 spin_lock(&tp->lock);
3121 skip_hw = tc_skip_hw(f->flags);
3123 if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))
3124 goto nla_put_failure_locked;
3126 spin_unlock(&tp->lock);
3129 fl_hw_update_stats(tp, f, rtnl_held);
3131 if (tcf_exts_terse_dump(skb, &f->exts))
3132 goto nla_put_failure;
3134 nla_nest_end(skb, nest);
3138 nla_put_failure_locked:
3139 spin_unlock(&tp->lock);
3141 nla_nest_cancel(skb, nest);
3145 static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv)
3147 struct fl_flow_tmplt *tmplt = tmplt_priv;
3148 struct fl_flow_key *key, *mask;
3149 struct nlattr *nest;
3151 nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
3153 goto nla_put_failure;
3155 key = &tmplt->dummy_key;
3156 mask = &tmplt->mask;
3158 if (fl_dump_key(skb, net, key, mask))
3159 goto nla_put_failure;
3161 nla_nest_end(skb, nest);
3166 nla_nest_cancel(skb, nest);
3170 static void fl_bind_class(void *fh, u32 classid, unsigned long cl, void *q,
3173 struct cls_fl_filter *f = fh;
3175 if (f && f->res.classid == classid) {
3177 __tcf_bind_filter(q, &f->res, base);
3179 __tcf_unbind_filter(q, &f->res);
3183 static bool fl_delete_empty(struct tcf_proto *tp)
3185 struct cls_fl_head *head = fl_head_dereference(tp);
3187 spin_lock(&tp->lock);
3188 tp->deleting = idr_is_empty(&head->handle_idr);
3189 spin_unlock(&tp->lock);
3191 return tp->deleting;
3194 static struct tcf_proto_ops cls_fl_ops __read_mostly = {
3196 .classify = fl_classify,
3198 .destroy = fl_destroy,
3201 .change = fl_change,
3202 .delete = fl_delete,
3203 .delete_empty = fl_delete_empty,
3205 .reoffload = fl_reoffload,
3206 .hw_add = fl_hw_add,
3207 .hw_del = fl_hw_del,
3209 .terse_dump = fl_terse_dump,
3210 .bind_class = fl_bind_class,
3211 .tmplt_create = fl_tmplt_create,
3212 .tmplt_destroy = fl_tmplt_destroy,
3213 .tmplt_dump = fl_tmplt_dump,
3214 .owner = THIS_MODULE,
3215 .flags = TCF_PROTO_OPS_DOIT_UNLOCKED,
3218 static int __init cls_fl_init(void)
3220 return register_tcf_proto_ops(&cls_fl_ops);
3223 static void __exit cls_fl_exit(void)
3225 unregister_tcf_proto_ops(&cls_fl_ops);
3228 module_init(cls_fl_init);
3229 module_exit(cls_fl_exit);
3231 MODULE_AUTHOR("Jiri Pirko <jiri@resnulli.us>");
3232 MODULE_DESCRIPTION("Flower classifier");
3233 MODULE_LICENSE("GPL v2");