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Merge branch 'lwtunnel-add-ip-and-ip6-options-setting-and-dumping'

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Xin Long says:

====================
lwtunnel: add ip and ip6 options setting and dumping

With this patchset, users can configure options by ip route encap
for geneve, vxlan and ersapn lwtunnel, like:

  # ip r a 1.1.1.0/24 encap ip id 1 geneve class 0 type 0 \
    data "1212121234567890" dst 10.1.0.2 dev geneve1

  # ip r a 1.1.1.0/24 encap ip id 1 vxlan gbp 456 \
    dst 10.1.0.2 dev erspan1

  # ip r a 1.1.1.0/24 encap ip id 1 erspan ver 1 idx 123 \
    dst 10.1.0.2 dev erspan1

iproute side patch is attached on the reply of this mail.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2019-11-06 21:14:22 -08:00
commit 3924f72a3a
2 changed files with 402 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
include/uapi/linux/lwtunnel.h
View File

@ -27,6 +27,7 @@ enum lwtunnel_ip_t {
LWTUNNEL_IP_TOS,
LWTUNNEL_IP_FLAGS,
LWTUNNEL_IP_PAD,
LWTUNNEL_IP_OPTS,
__LWTUNNEL_IP_MAX,
};
@ -41,11 +42,51 @@ enum lwtunnel_ip6_t {
LWTUNNEL_IP6_TC,
LWTUNNEL_IP6_FLAGS,
LWTUNNEL_IP6_PAD,
LWTUNNEL_IP6_OPTS,
__LWTUNNEL_IP6_MAX,
};
#define LWTUNNEL_IP6_MAX (__LWTUNNEL_IP6_MAX - 1)
enum {
LWTUNNEL_IP_OPTS_UNSPEC,
LWTUNNEL_IP_OPTS_GENEVE,
LWTUNNEL_IP_OPTS_VXLAN,
LWTUNNEL_IP_OPTS_ERSPAN,
__LWTUNNEL_IP_OPTS_MAX,
};
#define LWTUNNEL_IP_OPTS_MAX (__LWTUNNEL_IP_OPTS_MAX - 1)
enum {
LWTUNNEL_IP_OPT_GENEVE_UNSPEC,
LWTUNNEL_IP_OPT_GENEVE_CLASS,
LWTUNNEL_IP_OPT_GENEVE_TYPE,
LWTUNNEL_IP_OPT_GENEVE_DATA,
__LWTUNNEL_IP_OPT_GENEVE_MAX,
};
#define LWTUNNEL_IP_OPT_GENEVE_MAX (__LWTUNNEL_IP_OPT_GENEVE_MAX - 1)
enum {
LWTUNNEL_IP_OPT_VXLAN_UNSPEC,
LWTUNNEL_IP_OPT_VXLAN_GBP,
__LWTUNNEL_IP_OPT_VXLAN_MAX,
};
#define LWTUNNEL_IP_OPT_VXLAN_MAX (__LWTUNNEL_IP_OPT_VXLAN_MAX - 1)
enum {
LWTUNNEL_IP_OPT_ERSPAN_UNSPEC,
LWTUNNEL_IP_OPT_ERSPAN_VER,
LWTUNNEL_IP_OPT_ERSPAN_INDEX,
LWTUNNEL_IP_OPT_ERSPAN_DIR,
LWTUNNEL_IP_OPT_ERSPAN_HWID,
__LWTUNNEL_IP_OPT_ERSPAN_MAX,
};
#define LWTUNNEL_IP_OPT_ERSPAN_MAX (__LWTUNNEL_IP_OPT_ERSPAN_MAX - 1)
enum {
LWT_BPF_PROG_UNSPEC,
LWT_BPF_PROG_FD,

382
net/ipv4/ip_tunnel_core.c
View File

@ -34,6 +34,9 @@
#include <net/netns/generic.h>
#include <net/rtnetlink.h>
#include <net/dst_metadata.h>
#include <net/geneve.h>
#include <net/vxlan.h>
#include <net/erspan.h>
const struct ip_tunnel_encap_ops __rcu *
iptun_encaps[MAX_IPTUN_ENCAP_OPS] __read_mostly;
@ -126,15 +129,14 @@ struct metadata_dst *iptunnel_metadata_reply(struct metadata_dst *md,
if (!md || md->type != METADATA_IP_TUNNEL ||
md->u.tun_info.mode & IP_TUNNEL_INFO_TX)
return NULL;
res = metadata_dst_alloc(0, METADATA_IP_TUNNEL, flags);
src = &md->u.tun_info;
res = metadata_dst_alloc(src->options_len, METADATA_IP_TUNNEL, flags);
if (!res)
return NULL;
dst = &res->u.tun_info;
src = &md->u.tun_info;
dst->key.tun_id = src->key.tun_id;
if (src->mode & IP_TUNNEL_INFO_IPV6)
memcpy(&dst->key.u.ipv6.dst, &src->key.u.ipv6.src,
@ -143,6 +145,8 @@ struct metadata_dst *iptunnel_metadata_reply(struct metadata_dst *md,
dst->key.u.ipv4.dst = src->key.u.ipv4.src;
dst->key.tun_flags = src->key.tun_flags;
dst->mode = src->mode | IP_TUNNEL_INFO_TX;
ip_tunnel_info_opts_set(dst, ip_tunnel_info_opts(src),
src->options_len, 0);
return res;
}
@ -217,24 +221,199 @@ static const struct nla_policy ip_tun_policy[LWTUNNEL_IP_MAX + 1] = {
[LWTUNNEL_IP_TTL] = { .type = NLA_U8 },
[LWTUNNEL_IP_TOS] = { .type = NLA_U8 },
[LWTUNNEL_IP_FLAGS] = { .type = NLA_U16 },
[LWTUNNEL_IP_OPTS] = { .type = NLA_NESTED },
};
static const struct nla_policy ip_opts_policy[LWTUNNEL_IP_OPTS_MAX + 1] = {
[LWTUNNEL_IP_OPTS_GENEVE] = { .type = NLA_NESTED },
[LWTUNNEL_IP_OPTS_VXLAN] = { .type = NLA_NESTED },
[LWTUNNEL_IP_OPTS_ERSPAN] = { .type = NLA_NESTED },
};
static const struct nla_policy
geneve_opt_policy[LWTUNNEL_IP_OPT_GENEVE_MAX + 1] = {
[LWTUNNEL_IP_OPT_GENEVE_CLASS] = { .type = NLA_U16 },
[LWTUNNEL_IP_OPT_GENEVE_TYPE] = { .type = NLA_U8 },
[LWTUNNEL_IP_OPT_GENEVE_DATA] = { .type = NLA_BINARY, .len = 128 },
};
static const struct nla_policy
vxlan_opt_policy[LWTUNNEL_IP_OPT_VXLAN_MAX + 1] = {
[LWTUNNEL_IP_OPT_VXLAN_GBP] = { .type = NLA_U32 },
};
static const struct nla_policy
erspan_opt_policy[LWTUNNEL_IP_OPT_ERSPAN_MAX + 1] = {
[LWTUNNEL_IP_OPT_ERSPAN_VER] = { .type = NLA_U8 },
[LWTUNNEL_IP_OPT_ERSPAN_INDEX] = { .type = NLA_U32 },
[LWTUNNEL_IP_OPT_ERSPAN_DIR] = { .type = NLA_U8 },
[LWTUNNEL_IP_OPT_ERSPAN_HWID] = { .type = NLA_U8 },
};
static int ip_tun_parse_opts_geneve(struct nlattr *attr,
struct ip_tunnel_info *info,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[LWTUNNEL_IP_OPT_GENEVE_MAX + 1];
int data_len, err;
err = nla_parse_nested_deprecated(tb, LWTUNNEL_IP_OPT_GENEVE_MAX,
attr, geneve_opt_policy, extack);
if (err)
return err;
if (!tb[LWTUNNEL_IP_OPT_GENEVE_CLASS] ||
!tb[LWTUNNEL_IP_OPT_GENEVE_TYPE] ||
!tb[LWTUNNEL_IP_OPT_GENEVE_DATA])
return -EINVAL;
attr = tb[LWTUNNEL_IP_OPT_GENEVE_DATA];
data_len = nla_len(attr);
if (data_len % 4)
return -EINVAL;
if (info) {
struct geneve_opt *opt = ip_tunnel_info_opts(info);
memcpy(opt->opt_data, nla_data(attr), data_len);
opt->length = data_len / 4;
attr = tb[LWTUNNEL_IP_OPT_GENEVE_CLASS];
opt->opt_class = nla_get_be16(attr);
attr = tb[LWTUNNEL_IP_OPT_GENEVE_TYPE];
opt->type = nla_get_u8(attr);
info->key.tun_flags |= TUNNEL_GENEVE_OPT;
}
return sizeof(struct geneve_opt) + data_len;
}
static int ip_tun_parse_opts_vxlan(struct nlattr *attr,
struct ip_tunnel_info *info,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[LWTUNNEL_IP_OPT_VXLAN_MAX + 1];
int err;
err = nla_parse_nested_deprecated(tb, LWTUNNEL_IP_OPT_VXLAN_MAX,
attr, vxlan_opt_policy, extack);
if (err)
return err;
if (!tb[LWTUNNEL_IP_OPT_VXLAN_GBP])
return -EINVAL;
if (info) {
struct vxlan_metadata *md = ip_tunnel_info_opts(info);
attr = tb[LWTUNNEL_IP_OPT_VXLAN_GBP];
md->gbp = nla_get_u32(attr);
info->key.tun_flags |= TUNNEL_VXLAN_OPT;
}
return sizeof(struct vxlan_metadata);
}
static int ip_tun_parse_opts_erspan(struct nlattr *attr,
struct ip_tunnel_info *info,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[LWTUNNEL_IP_OPT_ERSPAN_MAX + 1];
int err;
err = nla_parse_nested_deprecated(tb, LWTUNNEL_IP_OPT_ERSPAN_MAX,
attr, erspan_opt_policy, extack);
if (err)
return err;
if (!tb[LWTUNNEL_IP_OPT_ERSPAN_VER])
return -EINVAL;
if (info) {
struct erspan_metadata *md = ip_tunnel_info_opts(info);
attr = tb[LWTUNNEL_IP_OPT_ERSPAN_VER];
md->version = nla_get_u8(attr);
if (md->version == 1 && tb[LWTUNNEL_IP_OPT_ERSPAN_INDEX]) {
attr = tb[LWTUNNEL_IP_OPT_ERSPAN_INDEX];
md->u.index = nla_get_be32(attr);
} else if (md->version == 2 && tb[LWTUNNEL_IP_OPT_ERSPAN_DIR] &&
tb[LWTUNNEL_IP_OPT_ERSPAN_HWID]) {
attr = tb[LWTUNNEL_IP_OPT_ERSPAN_DIR];
md->u.md2.dir = nla_get_u8(attr);
attr = tb[LWTUNNEL_IP_OPT_ERSPAN_HWID];
set_hwid(&md->u.md2, nla_get_u8(attr));
} else {
return -EINVAL;
}
info->key.tun_flags |= TUNNEL_ERSPAN_OPT;
}
return sizeof(struct erspan_metadata);
}
static int ip_tun_parse_opts(struct nlattr *attr, struct ip_tunnel_info *info,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[LWTUNNEL_IP_OPTS_MAX + 1];
int err;
if (!attr)
return 0;
err = nla_parse_nested_deprecated(tb, LWTUNNEL_IP_OPTS_MAX, attr,
ip_opts_policy, extack);
if (err)
return err;
if (tb[LWTUNNEL_IP_OPTS_GENEVE])
err = ip_tun_parse_opts_geneve(tb[LWTUNNEL_IP_OPTS_GENEVE],
info, extack);
else if (tb[LWTUNNEL_IP_OPTS_VXLAN])
err = ip_tun_parse_opts_vxlan(tb[LWTUNNEL_IP_OPTS_VXLAN],
info, extack);
else if (tb[LWTUNNEL_IP_OPTS_ERSPAN])
err = ip_tun_parse_opts_erspan(tb[LWTUNNEL_IP_OPTS_ERSPAN],
info, extack);
else
err = -EINVAL;
return err;
}
static int ip_tun_get_optlen(struct nlattr *attr,
struct netlink_ext_ack *extack)
{
return ip_tun_parse_opts(attr, NULL, extack);
}
static int ip_tun_set_opts(struct nlattr *attr, struct ip_tunnel_info *info,
struct netlink_ext_ack *extack)
{
return ip_tun_parse_opts(attr, info, extack);
}
static int ip_tun_build_state(struct nlattr *attr,
unsigned int family, const void *cfg,
struct lwtunnel_state **ts,
struct netlink_ext_ack *extack)
{
struct ip_tunnel_info *tun_info;
struct lwtunnel_state *new_state;
struct nlattr *tb[LWTUNNEL_IP_MAX + 1];
int err;
struct lwtunnel_state *new_state;
struct ip_tunnel_info *tun_info;
int err, opt_len;
err = nla_parse_nested_deprecated(tb, LWTUNNEL_IP_MAX, attr,
ip_tun_policy, extack);
if (err < 0)
return err;
new_state = lwtunnel_state_alloc(sizeof(*tun_info));
opt_len = ip_tun_get_optlen(tb[LWTUNNEL_IP_OPTS], extack);
if (opt_len < 0)
return opt_len;
new_state = lwtunnel_state_alloc(sizeof(*tun_info) + opt_len);
if (!new_state)
return -ENOMEM;
@ -242,6 +421,12 @@ static int ip_tun_build_state(struct nlattr *attr,
tun_info = lwt_tun_info(new_state);
err = ip_tun_set_opts(tb[LWTUNNEL_IP_OPTS], tun_info, extack);
if (err < 0) {
lwtstate_free(new_state);
return err;
}
#ifdef CONFIG_DST_CACHE
err = dst_cache_init(&tun_info->dst_cache, GFP_KERNEL);
if (err) {
@ -266,10 +451,10 @@ static int ip_tun_build_state(struct nlattr *attr,
tun_info->key.tos = nla_get_u8(tb[LWTUNNEL_IP_TOS]);
if (tb[LWTUNNEL_IP_FLAGS])
tun_info->key.tun_flags = nla_get_be16(tb[LWTUNNEL_IP_FLAGS]);
tun_info->key.tun_flags |= nla_get_be16(tb[LWTUNNEL_IP_FLAGS]);
tun_info->mode = IP_TUNNEL_INFO_TX;
tun_info->options_len = 0;
tun_info->options_len = opt_len;
*ts = new_state;
@ -285,6 +470,110 @@ static void ip_tun_destroy_state(struct lwtunnel_state *lwtstate)
#endif
}
static int ip_tun_fill_encap_opts_geneve(struct sk_buff *skb,
struct ip_tunnel_info *tun_info)
{
struct geneve_opt *opt;
struct nlattr *nest;
nest = nla_nest_start_noflag(skb, LWTUNNEL_IP_OPTS_GENEVE);
if (!nest)
return -ENOMEM;
opt = ip_tunnel_info_opts(tun_info);
if (nla_put_be16(skb, LWTUNNEL_IP_OPT_GENEVE_CLASS, opt->opt_class) ||
nla_put_u8(skb, LWTUNNEL_IP_OPT_GENEVE_TYPE, opt->type) ||
nla_put(skb, LWTUNNEL_IP_OPT_GENEVE_DATA, opt->length * 4,
opt->opt_data)) {
nla_nest_cancel(skb, nest);
return -ENOMEM;
}
nla_nest_end(skb, nest);
return 0;
}
static int ip_tun_fill_encap_opts_vxlan(struct sk_buff *skb,
struct ip_tunnel_info *tun_info)
{
struct vxlan_metadata *md;
struct nlattr *nest;
nest = nla_nest_start_noflag(skb, LWTUNNEL_IP_OPTS_VXLAN);
if (!nest)
return -ENOMEM;
md = ip_tunnel_info_opts(tun_info);
if (nla_put_u32(skb, LWTUNNEL_IP_OPT_VXLAN_GBP, md->gbp)) {
nla_nest_cancel(skb, nest);
return -ENOMEM;
}
nla_nest_end(skb, nest);
return 0;
}
static int ip_tun_fill_encap_opts_erspan(struct sk_buff *skb,
struct ip_tunnel_info *tun_info)
{
struct erspan_metadata *md;
struct nlattr *nest;
nest = nla_nest_start_noflag(skb, LWTUNNEL_IP_OPTS_ERSPAN);
if (!nest)
return -ENOMEM;
md = ip_tunnel_info_opts(tun_info);
if (nla_put_u32(skb, LWTUNNEL_IP_OPT_ERSPAN_VER, md->version))
goto err;
if (md->version == 1 &&
nla_put_be32(skb, LWTUNNEL_IP_OPT_ERSPAN_INDEX, md->u.index))
goto err;
if (md->version == 2 &&
(nla_put_u8(skb, LWTUNNEL_IP_OPT_ERSPAN_DIR, md->u.md2.dir) ||
nla_put_u8(skb, LWTUNNEL_IP_OPT_ERSPAN_HWID,
get_hwid(&md->u.md2))))
goto err;
nla_nest_end(skb, nest);
return 0;
err:
nla_nest_cancel(skb, nest);
return -ENOMEM;
}
static int ip_tun_fill_encap_opts(struct sk_buff *skb, int type,
struct ip_tunnel_info *tun_info)
{
struct nlattr *nest;
int err = 0;
if (!(tun_info->key.tun_flags &
(TUNNEL_GENEVE_OPT | TUNNEL_VXLAN_OPT | TUNNEL_ERSPAN_OPT)))
return 0;
nest = nla_nest_start_noflag(skb, type);
if (!nest)
return -ENOMEM;
if (tun_info->key.tun_flags & TUNNEL_GENEVE_OPT)
err = ip_tun_fill_encap_opts_geneve(skb, tun_info);
else if (tun_info->key.tun_flags & TUNNEL_VXLAN_OPT)
err = ip_tun_fill_encap_opts_vxlan(skb, tun_info);
else if (tun_info->key.tun_flags & TUNNEL_ERSPAN_OPT)
err = ip_tun_fill_encap_opts_erspan(skb, tun_info);
if (err) {
nla_nest_cancel(skb, nest);
return err;
}
nla_nest_end(skb, nest);
return 0;
}
static int ip_tun_fill_encap_info(struct sk_buff *skb,
struct lwtunnel_state *lwtstate)
{
@ -296,12 +585,42 @@ static int ip_tun_fill_encap_info(struct sk_buff *skb,
nla_put_in_addr(skb, LWTUNNEL_IP_SRC, tun_info->key.u.ipv4.src) ||
nla_put_u8(skb, LWTUNNEL_IP_TOS, tun_info->key.tos) ||
nla_put_u8(skb, LWTUNNEL_IP_TTL, tun_info->key.ttl) ||
nla_put_be16(skb, LWTUNNEL_IP_FLAGS, tun_info->key.tun_flags))
nla_put_be16(skb, LWTUNNEL_IP_FLAGS, tun_info->key.tun_flags) ||
ip_tun_fill_encap_opts(skb, LWTUNNEL_IP_OPTS, tun_info))
return -ENOMEM;
return 0;
}
static int ip_tun_opts_nlsize(struct ip_tunnel_info *info)
{
int opt_len;
if (!(info->key.tun_flags &
(TUNNEL_GENEVE_OPT | TUNNEL_VXLAN_OPT | TUNNEL_ERSPAN_OPT)))
return 0;
opt_len = nla_total_size(0); /* LWTUNNEL_IP_OPTS */
if (info->key.tun_flags & TUNNEL_GENEVE_OPT) {
struct geneve_opt *opt = ip_tunnel_info_opts(info);
opt_len += nla_total_size(0) /* LWTUNNEL_IP_OPTS_GENEVE */
+ nla_total_size(2) /* OPT_GENEVE_CLASS */
+ nla_total_size(1) /* OPT_GENEVE_TYPE */
+ nla_total_size(opt->length * 4);
/* OPT_GENEVE_DATA */
} else if (info->key.tun_flags & TUNNEL_VXLAN_OPT) {
opt_len += nla_total_size(0) /* LWTUNNEL_IP_OPTS_VXLAN */
+ nla_total_size(4); /* OPT_VXLAN_GBP */
} else if (info->key.tun_flags & TUNNEL_ERSPAN_OPT) {
opt_len += nla_total_size(0) /* LWTUNNEL_IP_OPTS_ERSPAN */
+ nla_total_size(1) /* OPT_ERSPAN_VER */
+ nla_total_size(4); /* OPT_ERSPAN_INDEX/DIR/HWID */
}
return opt_len;
}
static int ip_tun_encap_nlsize(struct lwtunnel_state *lwtstate)
{
return nla_total_size_64bit(8) /* LWTUNNEL_IP_ID */
@ -309,13 +628,21 @@ static int ip_tun_encap_nlsize(struct lwtunnel_state *lwtstate)
+ nla_total_size(4) /* LWTUNNEL_IP_SRC */
+ nla_total_size(1) /* LWTUNNEL_IP_TOS */
+ nla_total_size(1) /* LWTUNNEL_IP_TTL */
+ nla_total_size(2); /* LWTUNNEL_IP_FLAGS */
+ nla_total_size(2) /* LWTUNNEL_IP_FLAGS */
+ ip_tun_opts_nlsize(lwt_tun_info(lwtstate));
/* LWTUNNEL_IP_OPTS */
}
static int ip_tun_cmp_encap(struct lwtunnel_state *a, struct lwtunnel_state *b)
{
return memcmp(lwt_tun_info(a), lwt_tun_info(b),
sizeof(struct ip_tunnel_info));
struct ip_tunnel_info *info_a = lwt_tun_info(a);
struct ip_tunnel_info *info_b = lwt_tun_info(b);
return memcmp(info_a, info_b, sizeof(info_a->key)) ||
info_a->mode != info_b->mode ||
info_a->options_len != info_b->options_len ||
memcmp(ip_tunnel_info_opts(info_a),
ip_tunnel_info_opts(info_b), info_a->options_len);
}
static const struct lwtunnel_encap_ops ip_tun_lwt_ops = {
@ -341,17 +668,21 @@ static int ip6_tun_build_state(struct nlattr *attr,
struct lwtunnel_state **ts,
struct netlink_ext_ack *extack)
{
struct ip_tunnel_info *tun_info;
struct lwtunnel_state *new_state;
struct nlattr *tb[LWTUNNEL_IP6_MAX + 1];
int err;
struct lwtunnel_state *new_state;
struct ip_tunnel_info *tun_info;
int err, opt_len;
err = nla_parse_nested_deprecated(tb, LWTUNNEL_IP6_MAX, attr,
ip6_tun_policy, extack);
if (err < 0)
return err;
new_state = lwtunnel_state_alloc(sizeof(*tun_info));
opt_len = ip_tun_get_optlen(tb[LWTUNNEL_IP6_OPTS], extack);
if (opt_len < 0)
return opt_len;
new_state = lwtunnel_state_alloc(sizeof(*tun_info) + opt_len);
if (!new_state)
return -ENOMEM;
@ -359,6 +690,12 @@ static int ip6_tun_build_state(struct nlattr *attr,
tun_info = lwt_tun_info(new_state);
err = ip_tun_set_opts(tb[LWTUNNEL_IP6_OPTS], tun_info, extack);
if (err < 0) {
lwtstate_free(new_state);
return err;
}
if (tb[LWTUNNEL_IP6_ID])
tun_info->key.tun_id = nla_get_be64(tb[LWTUNNEL_IP6_ID]);
@ -375,10 +712,10 @@ static int ip6_tun_build_state(struct nlattr *attr,
tun_info->key.tos = nla_get_u8(tb[LWTUNNEL_IP6_TC]);
if (tb[LWTUNNEL_IP6_FLAGS])
tun_info->key.tun_flags = nla_get_be16(tb[LWTUNNEL_IP6_FLAGS]);
tun_info->key.tun_flags |= nla_get_be16(tb[LWTUNNEL_IP6_FLAGS]);
tun_info->mode = IP_TUNNEL_INFO_TX | IP_TUNNEL_INFO_IPV6;
tun_info->options_len = 0;
tun_info->options_len = opt_len;
*ts = new_state;
@ -396,7 +733,8 @@ static int ip6_tun_fill_encap_info(struct sk_buff *skb,
nla_put_in6_addr(skb, LWTUNNEL_IP6_SRC, &tun_info->key.u.ipv6.src) ||
nla_put_u8(skb, LWTUNNEL_IP6_TC, tun_info->key.tos) ||
nla_put_u8(skb, LWTUNNEL_IP6_HOPLIMIT, tun_info->key.ttl) ||
nla_put_be16(skb, LWTUNNEL_IP6_FLAGS, tun_info->key.tun_flags))
nla_put_be16(skb, LWTUNNEL_IP6_FLAGS, tun_info->key.tun_flags) ||
ip_tun_fill_encap_opts(skb, LWTUNNEL_IP6_OPTS, tun_info))
return -ENOMEM;
return 0;
@ -409,7 +747,9 @@ static int ip6_tun_encap_nlsize(struct lwtunnel_state *lwtstate)
+ nla_total_size(16) /* LWTUNNEL_IP6_SRC */
+ nla_total_size(1) /* LWTUNNEL_IP6_HOPLIMIT */
+ nla_total_size(1) /* LWTUNNEL_IP6_TC */
+ nla_total_size(2); /* LWTUNNEL_IP6_FLAGS */
+ nla_total_size(2) /* LWTUNNEL_IP6_FLAGS */
+ ip_tun_opts_nlsize(lwt_tun_info(lwtstate));
/* LWTUNNEL_IP6_OPTS */
}
static const struct lwtunnel_encap_ops ip6_tun_lwt_ops = {