#include <net/net_namespace.h>
#include <net/netns/generic.h>
#include <net/rtnetlink.h>
+#include <net/dst_metadata.h>
int iptunnel_xmit(struct sock *sk, struct rtable *rt, struct sk_buff *skb,
__be32 src, __be32 dst, __u8 proto,
__u8 tos, __u8 ttl, __be16 df, bool xnet)
{
- int pkt_len = skb->len;
+ int pkt_len = skb->len - skb_inner_network_offset(skb);
struct iphdr *iph;
int err;
}
EXPORT_SYMBOL_GPL(iptunnel_pull_header);
+struct metadata_dst *iptunnel_metadata_reply(struct metadata_dst *md,
+ gfp_t flags)
+{
+ struct metadata_dst *res;
+ struct ip_tunnel_info *dst, *src;
+
+ if (!md || md->u.tun_info.mode & IP_TUNNEL_INFO_TX)
+ return NULL;
+
+ res = metadata_dst_alloc(0, 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,
+ sizeof(struct in6_addr));
+ else
+ dst->key.u.ipv4.dst = src->key.u.ipv4.src;
+ dst->mode = src->mode | IP_TUNNEL_INFO_TX;
+
+ return res;
+}
+EXPORT_SYMBOL_GPL(iptunnel_metadata_reply);
+
struct sk_buff *iptunnel_handle_offloads(struct sk_buff *skb,
bool csum_help,
int gso_type_mask)
[LWTUNNEL_IP_SRC] = { .type = NLA_U32 },
[LWTUNNEL_IP_TTL] = { .type = NLA_U8 },
[LWTUNNEL_IP_TOS] = { .type = NLA_U8 },
- [LWTUNNEL_IP_SPORT] = { .type = NLA_U16 },
- [LWTUNNEL_IP_DPORT] = { .type = NLA_U16 },
[LWTUNNEL_IP_FLAGS] = { .type = NLA_U16 },
};
static int ip_tun_build_state(struct net_device *dev, struct nlattr *attr,
+ unsigned int family, const void *cfg,
struct lwtunnel_state **ts)
{
struct ip_tunnel_info *tun_info;
if (tb[LWTUNNEL_IP_TOS])
tun_info->key.tos = nla_get_u8(tb[LWTUNNEL_IP_TOS]);
- if (tb[LWTUNNEL_IP_SPORT])
- tun_info->key.tp_src = nla_get_be16(tb[LWTUNNEL_IP_SPORT]);
-
- if (tb[LWTUNNEL_IP_DPORT])
- tun_info->key.tp_dst = nla_get_be16(tb[LWTUNNEL_IP_DPORT]);
-
if (tb[LWTUNNEL_IP_FLAGS])
tun_info->key.tun_flags = nla_get_u16(tb[LWTUNNEL_IP_FLAGS]);
tun_info->mode = IP_TUNNEL_INFO_TX;
- tun_info->options = NULL;
tun_info->options_len = 0;
*ts = new_state;
nla_put_be32(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_u16(skb, LWTUNNEL_IP_SPORT, tun_info->key.tp_src) ||
- nla_put_u16(skb, LWTUNNEL_IP_DPORT, tun_info->key.tp_dst) ||
nla_put_u16(skb, LWTUNNEL_IP_FLAGS, tun_info->key.tun_flags))
return -ENOMEM;
+ 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_SPORT */
- + nla_total_size(2) /* LWTUNNEL_IP_DPORT */
+ nla_total_size(2); /* LWTUNNEL_IP_FLAGS */
}
.cmp_encap = ip_tun_cmp_encap,
};
+static const struct nla_policy ip6_tun_policy[LWTUNNEL_IP6_MAX + 1] = {
+ [LWTUNNEL_IP6_ID] = { .type = NLA_U64 },
+ [LWTUNNEL_IP6_DST] = { .len = sizeof(struct in6_addr) },
+ [LWTUNNEL_IP6_SRC] = { .len = sizeof(struct in6_addr) },
+ [LWTUNNEL_IP6_HOPLIMIT] = { .type = NLA_U8 },
+ [LWTUNNEL_IP6_TC] = { .type = NLA_U8 },
+ [LWTUNNEL_IP6_FLAGS] = { .type = NLA_U16 },
+};
+
+static int ip6_tun_build_state(struct net_device *dev, struct nlattr *attr,
+ unsigned int family, const void *cfg,
+ struct lwtunnel_state **ts)
+{
+ struct ip_tunnel_info *tun_info;
+ struct lwtunnel_state *new_state;
+ struct nlattr *tb[LWTUNNEL_IP6_MAX + 1];
+ int err;
+
+ err = nla_parse_nested(tb, LWTUNNEL_IP6_MAX, attr, ip6_tun_policy);
+ if (err < 0)
+ return err;
+
+ new_state = lwtunnel_state_alloc(sizeof(*tun_info));
+ if (!new_state)
+ return -ENOMEM;
+
+ new_state->type = LWTUNNEL_ENCAP_IP6;
+
+ tun_info = lwt_tun_info(new_state);
+
+ if (tb[LWTUNNEL_IP6_ID])
+ tun_info->key.tun_id = nla_get_u64(tb[LWTUNNEL_IP6_ID]);
+
+ if (tb[LWTUNNEL_IP6_DST])
+ tun_info->key.u.ipv6.dst = nla_get_in6_addr(tb[LWTUNNEL_IP6_DST]);
+
+ if (tb[LWTUNNEL_IP6_SRC])
+ tun_info->key.u.ipv6.src = nla_get_in6_addr(tb[LWTUNNEL_IP6_SRC]);
+
+ if (tb[LWTUNNEL_IP6_HOPLIMIT])
+ tun_info->key.ttl = nla_get_u8(tb[LWTUNNEL_IP6_HOPLIMIT]);
+
+ if (tb[LWTUNNEL_IP6_TC])
+ tun_info->key.tos = nla_get_u8(tb[LWTUNNEL_IP6_TC]);
+
+ if (tb[LWTUNNEL_IP6_FLAGS])
+ tun_info->key.tun_flags = nla_get_u16(tb[LWTUNNEL_IP6_FLAGS]);
+
+ tun_info->mode = IP_TUNNEL_INFO_TX | IP_TUNNEL_INFO_IPV6;
+ tun_info->options_len = 0;
+
+ *ts = new_state;
+
+ return 0;
+}
+
+static int ip6_tun_fill_encap_info(struct sk_buff *skb,
+ struct lwtunnel_state *lwtstate)
+{
+ struct ip_tunnel_info *tun_info = lwt_tun_info(lwtstate);
+
+ if (nla_put_u64(skb, LWTUNNEL_IP6_ID, tun_info->key.tun_id) ||
+ nla_put_in6_addr(skb, LWTUNNEL_IP6_DST, &tun_info->key.u.ipv6.dst) ||
+ nla_put_in6_addr(skb, LWTUNNEL_IP6_SRC, &tun_info->key.u.ipv6.src) ||
+ nla_put_u8(skb, LWTUNNEL_IP6_HOPLIMIT, tun_info->key.tos) ||
+ nla_put_u8(skb, LWTUNNEL_IP6_TC, tun_info->key.ttl) ||
+ nla_put_u16(skb, LWTUNNEL_IP6_FLAGS, tun_info->key.tun_flags))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int ip6_tun_encap_nlsize(struct lwtunnel_state *lwtstate)
+{
+ return nla_total_size(8) /* LWTUNNEL_IP6_ID */
+ + nla_total_size(16) /* LWTUNNEL_IP6_DST */
+ + 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 */
+}
+
+static const struct lwtunnel_encap_ops ip6_tun_lwt_ops = {
+ .build_state = ip6_tun_build_state,
+ .fill_encap = ip6_tun_fill_encap_info,
+ .get_encap_size = ip6_tun_encap_nlsize,
+ .cmp_encap = ip_tun_cmp_encap,
+};
+
void __init ip_tunnel_core_init(void)
{
lwtunnel_encap_add_ops(&ip_tun_lwt_ops, LWTUNNEL_ENCAP_IP);
+ lwtunnel_encap_add_ops(&ip6_tun_lwt_ops, LWTUNNEL_ENCAP_IP6);
}
struct static_key ip_tunnel_metadata_cnt = STATIC_KEY_INIT_FALSE;
projects / karo-tx-linux.git / blobdiff