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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_NEXTHOP_H
#define _UAPI_LINUX_NEXTHOP_H
#include <linux/types.h>
struct nhmsg {
unsigned char nh_family;
unsigned char nh_scope; /* return only */
unsigned char nh_protocol; /* Routing protocol that installed nh */
unsigned char resvd;
unsigned int nh_flags; /* RTNH_F flags */
};
/* entry in a nexthop group */
struct nexthop_grp {
__u32 id; /* nexthop id - must exist */
__u8 weight; /* weight of this nexthop */
__u8 resvd1;
__u16 resvd2;
};
enum {
NEXTHOP_GRP_TYPE_MPATH, /* default type if not specified */
__NEXTHOP_GRP_TYPE_MAX,
};
#define NEXTHOP_GRP_TYPE_MAX (__NEXTHOP_GRP_TYPE_MAX - 1)
enum {
NHA_UNSPEC,
NHA_ID, /* u32; id for nexthop. id == 0 means auto-assign */
NHA_GROUP, /* array of nexthop_grp */
NHA_GROUP_TYPE, /* u16 one of NEXTHOP_GRP_TYPE */
/* if NHA_GROUP attribute is added, no other attributes can be set */
NHA_BLACKHOLE, /* flag; nexthop used to blackhole packets */
/* if NHA_BLACKHOLE is added, OIF, GATEWAY, ENCAP can not be set */
NHA_OIF, /* u32; nexthop device */
NHA_GATEWAY, /* be32 (IPv4) or in6_addr (IPv6) gw address */
NHA_ENCAP_TYPE, /* u16; lwt encap type */
NHA_ENCAP, /* lwt encap data */
/* NHA_OIF can be appended to dump request to return only
* nexthops using given device
*/
NHA_GROUPS, /* flag; only return nexthop groups in dump */
NHA_MASTER, /* u32; only return nexthops with given master dev */
__NHA_MAX,
};
#define NHA_MAX (__NHA_MAX - 1)
#endif
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