[mirror_ubuntu-hirsute-kernel.git] / include / uapi / linux / nexthop.h

/* 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_FDB,	/* flag; nexthop belongs to a bridge fdb */
	/* if NHA_FDB is added, OIF, BLACKHOLE, ENCAP cannot be set */

	__NHA_MAX,
};

#define NHA_MAX	(__NHA_MAX - 1)
#endif
Commit	Line	Data
65ee00a9 DA	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
	2	#ifndef _UAPI_LINUX_NEXTHOP_H
	3	#define _UAPI_LINUX_NEXTHOP_H
	4
	5	#include <linux/types.h>
	6
	7	struct nhmsg {
	8	unsigned char nh_family;
	9	unsigned char nh_scope; /* return only */
	10	unsigned char nh_protocol; /* Routing protocol that installed nh */
	11	unsigned char resvd;
	12	unsigned int nh_flags; /* RTNH_F flags */
	13	};
	14
	15	/* entry in a nexthop group */
	16	struct nexthop_grp {
	17	__u32 id; /* nexthop id - must exist */
	18	__u8 weight; /* weight of this nexthop */
	19	__u8 resvd1;
	20	__u16 resvd2;
	21	};
	22
	23	enum {
	24	NEXTHOP_GRP_TYPE_MPATH, /* default type if not specified */
	25	__NEXTHOP_GRP_TYPE_MAX,
	26	};
	27
	28	#define NEXTHOP_GRP_TYPE_MAX (__NEXTHOP_GRP_TYPE_MAX - 1)
	29
	30	enum {
	31	NHA_UNSPEC,
	32	NHA_ID, /* u32; id for nexthop. id == 0 means auto-assign */
	33
	34	NHA_GROUP, /* array of nexthop_grp */
	35	NHA_GROUP_TYPE, /* u16 one of NEXTHOP_GRP_TYPE */
	36	/* if NHA_GROUP attribute is added, no other attributes can be set */
	37
	38	NHA_BLACKHOLE, /* flag; nexthop used to blackhole packets */
	39	/* if NHA_BLACKHOLE is added, OIF, GATEWAY, ENCAP can not be set */
	40
	41	NHA_OIF, /* u32; nexthop device */
	42	NHA_GATEWAY, /* be32 (IPv4) or in6_addr (IPv6) gw address */
	43	NHA_ENCAP_TYPE, /* u16; lwt encap type */
	44	NHA_ENCAP, /* lwt encap data */
	45
	46	/* NHA_OIF can be appended to dump request to return only
	47	* nexthops using given device
	48	*/
	49	NHA_GROUPS, /* flag; only return nexthop groups in dump */
	50	NHA_MASTER, /* u32; only return nexthops with given master dev */
	51
38428d68 RP	52	NHA_FDB, /* flag; nexthop belongs to a bridge fdb */
	53	/* if NHA_FDB is added, OIF, BLACKHOLE, ENCAP cannot be set */
	54
65ee00a9 DA	55	__NHA_MAX,
	56	};
	57
	58	#define NHA_MAX (__NHA_MAX - 1)
	59	#endif