5#include <linux/lwtunnel.h>
8#include "nexthop-encap.h"
10static struct lwtunnel_encap_type {
13} lwtunnel_encap_types[__LWTUNNEL_ENCAP_MAX] = {
14 [LWTUNNEL_ENCAP_NONE] = { .name =
"none" },
15 [LWTUNNEL_ENCAP_MPLS] = { .name =
"mpls", .ops = &mpls_encap_ops },
16 [LWTUNNEL_ENCAP_IP] = { .name =
"ip" },
17 [LWTUNNEL_ENCAP_IP6] = { .name =
"ip6" },
18 [LWTUNNEL_ENCAP_ILA] = { .name =
"ila" },
19 [LWTUNNEL_ENCAP_BPF] = { .name =
"bpf" },
22static const char *nh_encap_type2str(
unsigned int type)
26 if (type > LWTUNNEL_ENCAP_MAX)
29 name = lwtunnel_encap_types[type].name;
31 return name ? name :
"unknown";
40 nh_encap_type2str(rtnh_encap->ops->encap_type));
42 if (rtnh_encap->ops->dump)
43 rtnh_encap->ops->dump(rtnh_encap->priv, dp);
46int nh_encap_build_msg(
struct nl_msg *msg,
struct rtnl_nh_encap *rtnh_encap)
51 if (!rtnh_encap->ops || !rtnh_encap->ops->build_msg) {
52 NL_DBG(2,
"Nexthop encap type not implemented\n");
56 NLA_PUT_U16(msg, RTA_ENCAP_TYPE, rtnh_encap->ops->encap_type);
62 err = rtnh_encap->ops->build_msg(msg, rtnh_encap->priv);
74int nh_encap_parse_msg(
struct nlattr *encap,
struct nlattr *encap_type,
75 struct rtnl_nexthop *rtnh)
79 if (e_type == LWTUNNEL_ENCAP_NONE) {
80 NL_DBG(2,
"RTA_ENCAP_TYPE should not be LWTUNNEL_ENCAP_NONE\n");
83 if (e_type > LWTUNNEL_ENCAP_MAX) {
84 NL_DBG(2,
"Unknown RTA_ENCAP_TYPE: %d\n", e_type);
88 if (!lwtunnel_encap_types[e_type].ops) {
89 NL_DBG(2,
"RTA_ENCAP_TYPE %s is not implemented\n",
90 lwtunnel_encap_types[e_type].name);
91 return -NLE_MSGTYPE_NOSUPPORT;
94 return lwtunnel_encap_types[e_type].ops->parse_msg(encap, rtnh);
102 if ((a && !b) || (!a && b) || (a->ops != b->ops))
105 if (!a->ops || !a->ops->compare)
108 return a->ops->compare(a->priv, b->priv);
uint16_t nla_get_u16(const struct nlattr *nla)
Return payload of 16 bit integer attribute.
#define NLA_PUT_U16(msg, attrtype, value)
Add 16 bit integer attribute to netlink message.
struct nlattr * nla_nest_start(struct nl_msg *msg, int attrtype)
Start a new level of nested attributes.
int nla_nest_end(struct nl_msg *msg, struct nlattr *start)
Finalize nesting of attributes.
void nl_dump(struct nl_dump_params *params, const char *fmt,...)
Dump a formatted character string.