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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158/* 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 weight_high; /* high order bits of weight */ __u16 resvd2;};
static inline __u16 nexthop_grp_weight(const struct nexthop_grp *entry){ return ((entry->weight_high << 8) | entry->weight) + 1;}
enum { NEXTHOP_GRP_TYPE_MPATH, /* hash-threshold nexthop group * default type if not specified */ NEXTHOP_GRP_TYPE_RES, /* resilient nexthop group */ __NEXTHOP_GRP_TYPE_MAX,};
#define NEXTHOP_GRP_TYPE_MAX (__NEXTHOP_GRP_TYPE_MAX - 1)
#define NHA_OP_FLAG_DUMP_STATS BIT(0)#define NHA_OP_FLAG_DUMP_HW_STATS BIT(1)
/* Response OP_FLAGS. */#define NHA_OP_FLAG_RESP_GRP_RESVD_0 BIT(31) /* Dump clears resvd fields. */
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 */
/* nested; resilient nexthop group attributes */ NHA_RES_GROUP, /* nested; nexthop bucket attributes */ NHA_RES_BUCKET,
/* u32; operation-specific flags */ NHA_OP_FLAGS,
/* nested; nexthop group stats */ NHA_GROUP_STATS,
/* u32; nexthop hardware stats enable */ NHA_HW_STATS_ENABLE,
/* u32; read-only; whether any driver collects HW stats */ NHA_HW_STATS_USED,
__NHA_MAX,};
#define NHA_MAX (__NHA_MAX - 1)
enum { NHA_RES_GROUP_UNSPEC, /* Pad attribute for 64-bit alignment. */ NHA_RES_GROUP_PAD = NHA_RES_GROUP_UNSPEC,
/* u16; number of nexthop buckets in a resilient nexthop group */ NHA_RES_GROUP_BUCKETS, /* clock_t as u32; nexthop bucket idle timer (per-group) */ NHA_RES_GROUP_IDLE_TIMER, /* clock_t as u32; nexthop unbalanced timer */ NHA_RES_GROUP_UNBALANCED_TIMER, /* clock_t as u64; nexthop unbalanced time */ NHA_RES_GROUP_UNBALANCED_TIME,
__NHA_RES_GROUP_MAX,};
#define NHA_RES_GROUP_MAX (__NHA_RES_GROUP_MAX - 1)
enum { NHA_RES_BUCKET_UNSPEC, /* Pad attribute for 64-bit alignment. */ NHA_RES_BUCKET_PAD = NHA_RES_BUCKET_UNSPEC,
/* u16; nexthop bucket index */ NHA_RES_BUCKET_INDEX, /* clock_t as u64; nexthop bucket idle time */ NHA_RES_BUCKET_IDLE_TIME, /* u32; nexthop id assigned to the nexthop bucket */ NHA_RES_BUCKET_NH_ID,
__NHA_RES_BUCKET_MAX,};
#define NHA_RES_BUCKET_MAX (__NHA_RES_BUCKET_MAX - 1)
enum { NHA_GROUP_STATS_UNSPEC,
/* nested; nexthop group entry stats */ NHA_GROUP_STATS_ENTRY,
__NHA_GROUP_STATS_MAX,};
#define NHA_GROUP_STATS_MAX (__NHA_GROUP_STATS_MAX - 1)
enum { NHA_GROUP_STATS_ENTRY_UNSPEC,
/* u32; nexthop id of the nexthop group entry */ NHA_GROUP_STATS_ENTRY_ID,
/* uint; number of packets forwarded via the nexthop group entry */ NHA_GROUP_STATS_ENTRY_PACKETS,
/* uint; number of packets forwarded via the nexthop group entry in * hardware */ NHA_GROUP_STATS_ENTRY_PACKETS_HW,
__NHA_GROUP_STATS_ENTRY_MAX,};
#define NHA_GROUP_STATS_ENTRY_MAX (__NHA_GROUP_STATS_ENTRY_MAX - 1)
#endif