1 /* SPDX-License-Identifier: GPL-2.0 */
2 #include <linux/kernel.h>
3 #include <linux/init.h>
4 #include <linux/module.h>
5 #include <linux/seqlock.h>
6 #include <linux/netlink.h>
7 #include <linux/netfilter.h>
8 #include <linux/netfilter/nf_tables.h>
9 #include <net/netfilter/nf_tables.h>
10 #include <net/dst_metadata.h>
11 #include <net/ip_tunnels.h>
12 #include <net/vxlan.h>
13 #include <net/erspan.h>
14 #include <net/geneve.h>
17 enum nft_tunnel_keys key:8;
19 enum nft_tunnel_mode mode:8;
22 static void nft_tunnel_get_eval(const struct nft_expr *expr,
23 struct nft_regs *regs,
24 const struct nft_pktinfo *pkt)
26 const struct nft_tunnel *priv = nft_expr_priv(expr);
27 u32 *dest = ®s->data[priv->dreg];
28 struct ip_tunnel_info *tun_info;
30 tun_info = skb_tunnel_info(pkt->skb);
35 nft_reg_store8(dest, false);
38 if (priv->mode == NFT_TUNNEL_MODE_NONE ||
39 (priv->mode == NFT_TUNNEL_MODE_RX &&
40 !(tun_info->mode & IP_TUNNEL_INFO_TX)) ||
41 (priv->mode == NFT_TUNNEL_MODE_TX &&
42 (tun_info->mode & IP_TUNNEL_INFO_TX)))
43 nft_reg_store8(dest, true);
45 nft_reg_store8(dest, false);
49 regs->verdict.code = NFT_BREAK;
52 if (priv->mode == NFT_TUNNEL_MODE_NONE ||
53 (priv->mode == NFT_TUNNEL_MODE_RX &&
54 !(tun_info->mode & IP_TUNNEL_INFO_TX)) ||
55 (priv->mode == NFT_TUNNEL_MODE_TX &&
56 (tun_info->mode & IP_TUNNEL_INFO_TX)))
57 *dest = ntohl(tunnel_id_to_key32(tun_info->key.tun_id));
59 regs->verdict.code = NFT_BREAK;
63 regs->verdict.code = NFT_BREAK;
67 static const struct nla_policy nft_tunnel_policy[NFTA_TUNNEL_MAX + 1] = {
68 [NFTA_TUNNEL_KEY] = { .type = NLA_U32 },
69 [NFTA_TUNNEL_DREG] = { .type = NLA_U32 },
70 [NFTA_TUNNEL_MODE] = { .type = NLA_U32 },
73 static int nft_tunnel_get_init(const struct nft_ctx *ctx,
74 const struct nft_expr *expr,
75 const struct nlattr * const tb[])
77 struct nft_tunnel *priv = nft_expr_priv(expr);
80 if (!tb[NFTA_TUNNEL_KEY] ||
81 !tb[NFTA_TUNNEL_DREG])
84 priv->key = ntohl(nla_get_be32(tb[NFTA_TUNNEL_KEY]));
96 if (tb[NFTA_TUNNEL_MODE]) {
97 priv->mode = ntohl(nla_get_be32(tb[NFTA_TUNNEL_MODE]));
98 if (priv->mode > NFT_TUNNEL_MODE_MAX)
101 priv->mode = NFT_TUNNEL_MODE_NONE;
104 return nft_parse_register_store(ctx, tb[NFTA_TUNNEL_DREG], &priv->dreg,
105 NULL, NFT_DATA_VALUE, len);
108 static int nft_tunnel_get_dump(struct sk_buff *skb,
109 const struct nft_expr *expr)
111 const struct nft_tunnel *priv = nft_expr_priv(expr);
113 if (nla_put_be32(skb, NFTA_TUNNEL_KEY, htonl(priv->key)))
114 goto nla_put_failure;
115 if (nft_dump_register(skb, NFTA_TUNNEL_DREG, priv->dreg))
116 goto nla_put_failure;
117 if (nla_put_be32(skb, NFTA_TUNNEL_MODE, htonl(priv->mode)))
118 goto nla_put_failure;
125 static struct nft_expr_type nft_tunnel_type;
126 static const struct nft_expr_ops nft_tunnel_get_ops = {
127 .type = &nft_tunnel_type,
128 .size = NFT_EXPR_SIZE(sizeof(struct nft_tunnel)),
129 .eval = nft_tunnel_get_eval,
130 .init = nft_tunnel_get_init,
131 .dump = nft_tunnel_get_dump,
134 static struct nft_expr_type nft_tunnel_type __read_mostly = {
136 .ops = &nft_tunnel_get_ops,
137 .policy = nft_tunnel_policy,
138 .maxattr = NFTA_TUNNEL_MAX,
139 .owner = THIS_MODULE,
142 struct nft_tunnel_opts {
144 struct vxlan_metadata vxlan;
145 struct erspan_metadata erspan;
146 u8 data[IP_TUNNEL_OPTS_MAX];
152 struct nft_tunnel_obj {
153 struct metadata_dst *md;
154 struct nft_tunnel_opts opts;
157 static const struct nla_policy nft_tunnel_ip_policy[NFTA_TUNNEL_KEY_IP_MAX + 1] = {
158 [NFTA_TUNNEL_KEY_IP_SRC] = { .type = NLA_U32 },
159 [NFTA_TUNNEL_KEY_IP_DST] = { .type = NLA_U32 },
162 static int nft_tunnel_obj_ip_init(const struct nft_ctx *ctx,
163 const struct nlattr *attr,
164 struct ip_tunnel_info *info)
166 struct nlattr *tb[NFTA_TUNNEL_KEY_IP_MAX + 1];
169 err = nla_parse_nested_deprecated(tb, NFTA_TUNNEL_KEY_IP_MAX, attr,
170 nft_tunnel_ip_policy, NULL);
174 if (!tb[NFTA_TUNNEL_KEY_IP_DST])
177 if (tb[NFTA_TUNNEL_KEY_IP_SRC])
178 info->key.u.ipv4.src = nla_get_be32(tb[NFTA_TUNNEL_KEY_IP_SRC]);
179 if (tb[NFTA_TUNNEL_KEY_IP_DST])
180 info->key.u.ipv4.dst = nla_get_be32(tb[NFTA_TUNNEL_KEY_IP_DST]);
185 static const struct nla_policy nft_tunnel_ip6_policy[NFTA_TUNNEL_KEY_IP6_MAX + 1] = {
186 [NFTA_TUNNEL_KEY_IP6_SRC] = { .len = sizeof(struct in6_addr), },
187 [NFTA_TUNNEL_KEY_IP6_DST] = { .len = sizeof(struct in6_addr), },
188 [NFTA_TUNNEL_KEY_IP6_FLOWLABEL] = { .type = NLA_U32, }
191 static int nft_tunnel_obj_ip6_init(const struct nft_ctx *ctx,
192 const struct nlattr *attr,
193 struct ip_tunnel_info *info)
195 struct nlattr *tb[NFTA_TUNNEL_KEY_IP6_MAX + 1];
198 err = nla_parse_nested_deprecated(tb, NFTA_TUNNEL_KEY_IP6_MAX, attr,
199 nft_tunnel_ip6_policy, NULL);
203 if (!tb[NFTA_TUNNEL_KEY_IP6_DST])
206 if (tb[NFTA_TUNNEL_KEY_IP6_SRC]) {
207 memcpy(&info->key.u.ipv6.src,
208 nla_data(tb[NFTA_TUNNEL_KEY_IP6_SRC]),
209 sizeof(struct in6_addr));
211 if (tb[NFTA_TUNNEL_KEY_IP6_DST]) {
212 memcpy(&info->key.u.ipv6.dst,
213 nla_data(tb[NFTA_TUNNEL_KEY_IP6_DST]),
214 sizeof(struct in6_addr));
216 if (tb[NFTA_TUNNEL_KEY_IP6_FLOWLABEL])
217 info->key.label = nla_get_be32(tb[NFTA_TUNNEL_KEY_IP6_FLOWLABEL]);
219 info->mode |= IP_TUNNEL_INFO_IPV6;
224 static const struct nla_policy nft_tunnel_opts_vxlan_policy[NFTA_TUNNEL_KEY_VXLAN_MAX + 1] = {
225 [NFTA_TUNNEL_KEY_VXLAN_GBP] = { .type = NLA_U32 },
228 static int nft_tunnel_obj_vxlan_init(const struct nlattr *attr,
229 struct nft_tunnel_opts *opts)
231 struct nlattr *tb[NFTA_TUNNEL_KEY_VXLAN_MAX + 1];
234 err = nla_parse_nested_deprecated(tb, NFTA_TUNNEL_KEY_VXLAN_MAX, attr,
235 nft_tunnel_opts_vxlan_policy, NULL);
239 if (!tb[NFTA_TUNNEL_KEY_VXLAN_GBP])
242 opts->u.vxlan.gbp = ntohl(nla_get_be32(tb[NFTA_TUNNEL_KEY_VXLAN_GBP]));
244 opts->len = sizeof(struct vxlan_metadata);
245 opts->flags = TUNNEL_VXLAN_OPT;
250 static const struct nla_policy nft_tunnel_opts_erspan_policy[NFTA_TUNNEL_KEY_ERSPAN_MAX + 1] = {
251 [NFTA_TUNNEL_KEY_ERSPAN_VERSION] = { .type = NLA_U32 },
252 [NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX] = { .type = NLA_U32 },
253 [NFTA_TUNNEL_KEY_ERSPAN_V2_DIR] = { .type = NLA_U8 },
254 [NFTA_TUNNEL_KEY_ERSPAN_V2_HWID] = { .type = NLA_U8 },
257 static int nft_tunnel_obj_erspan_init(const struct nlattr *attr,
258 struct nft_tunnel_opts *opts)
260 struct nlattr *tb[NFTA_TUNNEL_KEY_ERSPAN_MAX + 1];
264 err = nla_parse_nested_deprecated(tb, NFTA_TUNNEL_KEY_ERSPAN_MAX,
265 attr, nft_tunnel_opts_erspan_policy,
270 if (!tb[NFTA_TUNNEL_KEY_ERSPAN_VERSION])
273 version = ntohl(nla_get_be32(tb[NFTA_TUNNEL_KEY_ERSPAN_VERSION]));
276 if (!tb[NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX])
279 opts->u.erspan.u.index =
280 nla_get_be32(tb[NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX]);
282 case ERSPAN_VERSION2:
283 if (!tb[NFTA_TUNNEL_KEY_ERSPAN_V2_DIR] ||
284 !tb[NFTA_TUNNEL_KEY_ERSPAN_V2_HWID])
287 hwid = nla_get_u8(tb[NFTA_TUNNEL_KEY_ERSPAN_V2_HWID]);
288 dir = nla_get_u8(tb[NFTA_TUNNEL_KEY_ERSPAN_V2_DIR]);
290 set_hwid(&opts->u.erspan.u.md2, hwid);
291 opts->u.erspan.u.md2.dir = dir;
296 opts->u.erspan.version = version;
298 opts->len = sizeof(struct erspan_metadata);
299 opts->flags = TUNNEL_ERSPAN_OPT;
304 static const struct nla_policy nft_tunnel_opts_geneve_policy[NFTA_TUNNEL_KEY_GENEVE_MAX + 1] = {
305 [NFTA_TUNNEL_KEY_GENEVE_CLASS] = { .type = NLA_U16 },
306 [NFTA_TUNNEL_KEY_GENEVE_TYPE] = { .type = NLA_U8 },
307 [NFTA_TUNNEL_KEY_GENEVE_DATA] = { .type = NLA_BINARY, .len = 128 },
310 static int nft_tunnel_obj_geneve_init(const struct nlattr *attr,
311 struct nft_tunnel_opts *opts)
313 struct geneve_opt *opt = (struct geneve_opt *)opts->u.data + opts->len;
314 struct nlattr *tb[NFTA_TUNNEL_KEY_GENEVE_MAX + 1];
317 err = nla_parse_nested(tb, NFTA_TUNNEL_KEY_GENEVE_MAX, attr,
318 nft_tunnel_opts_geneve_policy, NULL);
322 if (!tb[NFTA_TUNNEL_KEY_GENEVE_CLASS] ||
323 !tb[NFTA_TUNNEL_KEY_GENEVE_TYPE] ||
324 !tb[NFTA_TUNNEL_KEY_GENEVE_DATA])
327 attr = tb[NFTA_TUNNEL_KEY_GENEVE_DATA];
328 data_len = nla_len(attr);
332 opts->len += sizeof(*opt) + data_len;
333 if (opts->len > IP_TUNNEL_OPTS_MAX)
336 memcpy(opt->opt_data, nla_data(attr), data_len);
337 opt->length = data_len / 4;
338 opt->opt_class = nla_get_be16(tb[NFTA_TUNNEL_KEY_GENEVE_CLASS]);
339 opt->type = nla_get_u8(tb[NFTA_TUNNEL_KEY_GENEVE_TYPE]);
340 opts->flags = TUNNEL_GENEVE_OPT;
345 static const struct nla_policy nft_tunnel_opts_policy[NFTA_TUNNEL_KEY_OPTS_MAX + 1] = {
346 [NFTA_TUNNEL_KEY_OPTS_UNSPEC] = {
347 .strict_start_type = NFTA_TUNNEL_KEY_OPTS_GENEVE },
348 [NFTA_TUNNEL_KEY_OPTS_VXLAN] = { .type = NLA_NESTED, },
349 [NFTA_TUNNEL_KEY_OPTS_ERSPAN] = { .type = NLA_NESTED, },
350 [NFTA_TUNNEL_KEY_OPTS_GENEVE] = { .type = NLA_NESTED, },
353 static int nft_tunnel_obj_opts_init(const struct nft_ctx *ctx,
354 const struct nlattr *attr,
355 struct ip_tunnel_info *info,
356 struct nft_tunnel_opts *opts)
358 int err, rem, type = 0;
361 err = nla_validate_nested_deprecated(attr, NFTA_TUNNEL_KEY_OPTS_MAX,
362 nft_tunnel_opts_policy, NULL);
366 nla_for_each_attr(nla, nla_data(attr), nla_len(attr), rem) {
367 switch (nla_type(nla)) {
368 case NFTA_TUNNEL_KEY_OPTS_VXLAN:
371 err = nft_tunnel_obj_vxlan_init(nla, opts);
374 type = TUNNEL_VXLAN_OPT;
376 case NFTA_TUNNEL_KEY_OPTS_ERSPAN:
379 err = nft_tunnel_obj_erspan_init(nla, opts);
382 type = TUNNEL_ERSPAN_OPT;
384 case NFTA_TUNNEL_KEY_OPTS_GENEVE:
385 if (type && type != TUNNEL_GENEVE_OPT)
387 err = nft_tunnel_obj_geneve_init(nla, opts);
390 type = TUNNEL_GENEVE_OPT;
400 static const struct nla_policy nft_tunnel_key_policy[NFTA_TUNNEL_KEY_MAX + 1] = {
401 [NFTA_TUNNEL_KEY_IP] = { .type = NLA_NESTED, },
402 [NFTA_TUNNEL_KEY_IP6] = { .type = NLA_NESTED, },
403 [NFTA_TUNNEL_KEY_ID] = { .type = NLA_U32, },
404 [NFTA_TUNNEL_KEY_FLAGS] = { .type = NLA_U32, },
405 [NFTA_TUNNEL_KEY_TOS] = { .type = NLA_U8, },
406 [NFTA_TUNNEL_KEY_TTL] = { .type = NLA_U8, },
407 [NFTA_TUNNEL_KEY_SPORT] = { .type = NLA_U16, },
408 [NFTA_TUNNEL_KEY_DPORT] = { .type = NLA_U16, },
409 [NFTA_TUNNEL_KEY_OPTS] = { .type = NLA_NESTED, },
412 static int nft_tunnel_obj_init(const struct nft_ctx *ctx,
413 const struct nlattr * const tb[],
414 struct nft_object *obj)
416 struct nft_tunnel_obj *priv = nft_obj_data(obj);
417 struct ip_tunnel_info info;
418 struct metadata_dst *md;
421 if (!tb[NFTA_TUNNEL_KEY_ID])
424 memset(&info, 0, sizeof(info));
425 info.mode = IP_TUNNEL_INFO_TX;
426 info.key.tun_id = key32_to_tunnel_id(nla_get_be32(tb[NFTA_TUNNEL_KEY_ID]));
427 info.key.tun_flags = TUNNEL_KEY | TUNNEL_CSUM | TUNNEL_NOCACHE;
429 if (tb[NFTA_TUNNEL_KEY_IP]) {
430 err = nft_tunnel_obj_ip_init(ctx, tb[NFTA_TUNNEL_KEY_IP], &info);
433 } else if (tb[NFTA_TUNNEL_KEY_IP6]) {
434 err = nft_tunnel_obj_ip6_init(ctx, tb[NFTA_TUNNEL_KEY_IP6], &info);
441 if (tb[NFTA_TUNNEL_KEY_SPORT]) {
442 info.key.tp_src = nla_get_be16(tb[NFTA_TUNNEL_KEY_SPORT]);
444 if (tb[NFTA_TUNNEL_KEY_DPORT]) {
445 info.key.tp_dst = nla_get_be16(tb[NFTA_TUNNEL_KEY_DPORT]);
448 if (tb[NFTA_TUNNEL_KEY_FLAGS]) {
451 tun_flags = ntohl(nla_get_be32(tb[NFTA_TUNNEL_KEY_FLAGS]));
452 if (tun_flags & ~NFT_TUNNEL_F_MASK)
455 if (tun_flags & NFT_TUNNEL_F_ZERO_CSUM_TX)
456 info.key.tun_flags &= ~TUNNEL_CSUM;
457 if (tun_flags & NFT_TUNNEL_F_DONT_FRAGMENT)
458 info.key.tun_flags |= TUNNEL_DONT_FRAGMENT;
459 if (tun_flags & NFT_TUNNEL_F_SEQ_NUMBER)
460 info.key.tun_flags |= TUNNEL_SEQ;
462 if (tb[NFTA_TUNNEL_KEY_TOS])
463 info.key.tos = nla_get_u8(tb[NFTA_TUNNEL_KEY_TOS]);
464 if (tb[NFTA_TUNNEL_KEY_TTL])
465 info.key.ttl = nla_get_u8(tb[NFTA_TUNNEL_KEY_TTL]);
467 info.key.ttl = U8_MAX;
469 if (tb[NFTA_TUNNEL_KEY_OPTS]) {
470 err = nft_tunnel_obj_opts_init(ctx, tb[NFTA_TUNNEL_KEY_OPTS],
476 md = metadata_dst_alloc(priv->opts.len, METADATA_IP_TUNNEL, GFP_KERNEL);
480 memcpy(&md->u.tun_info, &info, sizeof(info));
481 #ifdef CONFIG_DST_CACHE
482 err = dst_cache_init(&md->u.tun_info.dst_cache, GFP_KERNEL);
484 metadata_dst_free(md);
488 ip_tunnel_info_opts_set(&md->u.tun_info, &priv->opts.u, priv->opts.len,
495 static inline void nft_tunnel_obj_eval(struct nft_object *obj,
496 struct nft_regs *regs,
497 const struct nft_pktinfo *pkt)
499 struct nft_tunnel_obj *priv = nft_obj_data(obj);
500 struct sk_buff *skb = pkt->skb;
503 dst_hold((struct dst_entry *) priv->md);
504 skb_dst_set(skb, (struct dst_entry *) priv->md);
507 static int nft_tunnel_ip_dump(struct sk_buff *skb, struct ip_tunnel_info *info)
511 if (info->mode & IP_TUNNEL_INFO_IPV6) {
512 nest = nla_nest_start_noflag(skb, NFTA_TUNNEL_KEY_IP6);
516 if (nla_put_in6_addr(skb, NFTA_TUNNEL_KEY_IP6_SRC,
517 &info->key.u.ipv6.src) < 0 ||
518 nla_put_in6_addr(skb, NFTA_TUNNEL_KEY_IP6_DST,
519 &info->key.u.ipv6.dst) < 0 ||
520 nla_put_be32(skb, NFTA_TUNNEL_KEY_IP6_FLOWLABEL,
522 nla_nest_cancel(skb, nest);
526 nla_nest_end(skb, nest);
528 nest = nla_nest_start_noflag(skb, NFTA_TUNNEL_KEY_IP);
532 if (nla_put_in_addr(skb, NFTA_TUNNEL_KEY_IP_SRC,
533 info->key.u.ipv4.src) < 0 ||
534 nla_put_in_addr(skb, NFTA_TUNNEL_KEY_IP_DST,
535 info->key.u.ipv4.dst) < 0) {
536 nla_nest_cancel(skb, nest);
540 nla_nest_end(skb, nest);
546 static int nft_tunnel_opts_dump(struct sk_buff *skb,
547 struct nft_tunnel_obj *priv)
549 struct nft_tunnel_opts *opts = &priv->opts;
550 struct nlattr *nest, *inner;
552 nest = nla_nest_start_noflag(skb, NFTA_TUNNEL_KEY_OPTS);
556 if (opts->flags & TUNNEL_VXLAN_OPT) {
557 inner = nla_nest_start_noflag(skb, NFTA_TUNNEL_KEY_OPTS_VXLAN);
560 if (nla_put_be32(skb, NFTA_TUNNEL_KEY_VXLAN_GBP,
561 htonl(opts->u.vxlan.gbp)))
563 nla_nest_end(skb, inner);
564 } else if (opts->flags & TUNNEL_ERSPAN_OPT) {
565 inner = nla_nest_start_noflag(skb, NFTA_TUNNEL_KEY_OPTS_ERSPAN);
568 if (nla_put_be32(skb, NFTA_TUNNEL_KEY_ERSPAN_VERSION,
569 htonl(opts->u.erspan.version)))
571 switch (opts->u.erspan.version) {
573 if (nla_put_be32(skb, NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX,
574 opts->u.erspan.u.index))
577 case ERSPAN_VERSION2:
578 if (nla_put_u8(skb, NFTA_TUNNEL_KEY_ERSPAN_V2_HWID,
579 get_hwid(&opts->u.erspan.u.md2)) ||
580 nla_put_u8(skb, NFTA_TUNNEL_KEY_ERSPAN_V2_DIR,
581 opts->u.erspan.u.md2.dir))
585 nla_nest_end(skb, inner);
586 } else if (opts->flags & TUNNEL_GENEVE_OPT) {
587 struct geneve_opt *opt;
590 inner = nla_nest_start_noflag(skb, NFTA_TUNNEL_KEY_OPTS_GENEVE);
593 while (opts->len > offset) {
594 opt = (struct geneve_opt *)opts->u.data + offset;
595 if (nla_put_be16(skb, NFTA_TUNNEL_KEY_GENEVE_CLASS,
597 nla_put_u8(skb, NFTA_TUNNEL_KEY_GENEVE_TYPE,
599 nla_put(skb, NFTA_TUNNEL_KEY_GENEVE_DATA,
600 opt->length * 4, opt->opt_data))
602 offset += sizeof(*opt) + opt->length * 4;
604 nla_nest_end(skb, inner);
606 nla_nest_end(skb, nest);
610 nla_nest_cancel(skb, inner);
612 nla_nest_cancel(skb, nest);
616 static int nft_tunnel_ports_dump(struct sk_buff *skb,
617 struct ip_tunnel_info *info)
619 if (nla_put_be16(skb, NFTA_TUNNEL_KEY_SPORT, info->key.tp_src) < 0 ||
620 nla_put_be16(skb, NFTA_TUNNEL_KEY_DPORT, info->key.tp_dst) < 0)
626 static int nft_tunnel_flags_dump(struct sk_buff *skb,
627 struct ip_tunnel_info *info)
631 if (info->key.tun_flags & TUNNEL_DONT_FRAGMENT)
632 flags |= NFT_TUNNEL_F_DONT_FRAGMENT;
633 if (!(info->key.tun_flags & TUNNEL_CSUM))
634 flags |= NFT_TUNNEL_F_ZERO_CSUM_TX;
635 if (info->key.tun_flags & TUNNEL_SEQ)
636 flags |= NFT_TUNNEL_F_SEQ_NUMBER;
638 if (nla_put_be32(skb, NFTA_TUNNEL_KEY_FLAGS, htonl(flags)) < 0)
644 static int nft_tunnel_obj_dump(struct sk_buff *skb,
645 struct nft_object *obj, bool reset)
647 struct nft_tunnel_obj *priv = nft_obj_data(obj);
648 struct ip_tunnel_info *info = &priv->md->u.tun_info;
650 if (nla_put_be32(skb, NFTA_TUNNEL_KEY_ID,
651 tunnel_id_to_key32(info->key.tun_id)) ||
652 nft_tunnel_ip_dump(skb, info) < 0 ||
653 nft_tunnel_ports_dump(skb, info) < 0 ||
654 nft_tunnel_flags_dump(skb, info) < 0 ||
655 nla_put_u8(skb, NFTA_TUNNEL_KEY_TOS, info->key.tos) ||
656 nla_put_u8(skb, NFTA_TUNNEL_KEY_TTL, info->key.ttl) ||
657 nft_tunnel_opts_dump(skb, priv) < 0)
658 goto nla_put_failure;
666 static void nft_tunnel_obj_destroy(const struct nft_ctx *ctx,
667 struct nft_object *obj)
669 struct nft_tunnel_obj *priv = nft_obj_data(obj);
671 metadata_dst_free(priv->md);
674 static struct nft_object_type nft_tunnel_obj_type;
675 static const struct nft_object_ops nft_tunnel_obj_ops = {
676 .type = &nft_tunnel_obj_type,
677 .size = sizeof(struct nft_tunnel_obj),
678 .eval = nft_tunnel_obj_eval,
679 .init = nft_tunnel_obj_init,
680 .destroy = nft_tunnel_obj_destroy,
681 .dump = nft_tunnel_obj_dump,
684 static struct nft_object_type nft_tunnel_obj_type __read_mostly = {
685 .type = NFT_OBJECT_TUNNEL,
686 .ops = &nft_tunnel_obj_ops,
687 .maxattr = NFTA_TUNNEL_KEY_MAX,
688 .policy = nft_tunnel_key_policy,
689 .owner = THIS_MODULE,
692 static int __init nft_tunnel_module_init(void)
696 err = nft_register_expr(&nft_tunnel_type);
700 err = nft_register_obj(&nft_tunnel_obj_type);
702 nft_unregister_expr(&nft_tunnel_type);
707 static void __exit nft_tunnel_module_exit(void)
709 nft_unregister_obj(&nft_tunnel_obj_type);
710 nft_unregister_expr(&nft_tunnel_type);
713 module_init(nft_tunnel_module_init);
714 module_exit(nft_tunnel_module_exit);
716 MODULE_LICENSE("GPL");
717 MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");
718 MODULE_ALIAS_NFT_EXPR("tunnel");
719 MODULE_ALIAS_NFT_OBJ(NFT_OBJECT_TUNNEL);
720 MODULE_DESCRIPTION("nftables tunnel expression support");