BPF_MAP_TYPE_ARRAY_OF_MAPS,

BPF_MAP_TYPE_HASH_OF_MAPS,

BPF_MAP_TYPE_DEVMAP,

BPF_MAP_TYPE_SOCKMAP,

};

enum bpf_prog_type {

BPF_CGROUP_INET_EGRESS,

BPF_CGROUP_INET_SOCK_CREATE,

BPF_CGROUP_SOCK_OPS,

BPF_CGROUP_SMAP_INGRESS,

__MAX_BPF_ATTACH_TYPE

};

#define MAX_BPF_ATTACH_TYPE __MAX_BPF_ATTACH_TYPE

/* If BPF_SOCKMAP_STRPARSER is used sockmap will use strparser on receive */

#define BPF_SOCKMAP_STRPARSER (1U << 0)

/* If BPF_F_ALLOW_OVERRIDE flag is used in BPF_PROG_ATTACH command

* to the given target_fd cgroup the descendent cgroup will be able to

* override effective bpf program that was inherited from this cgroup

__u32 attach_bpf_fd; /* eBPF program to attach */

__u32 attach_type;

__u32 attach_flags;

__u32 attach_bpf_fd2;

};

struct { /* anonymous struct used by BPF_PROG_TEST_RUN command */

* @mode: operation mode (enum bpf_adj_room_mode)

* @flags: reserved for future use

* Return: 0 on success or negative error code

*

* int bpf_sk_redirect_map(map, key, flags)

* Redirect skb to a sock in map using key as a lookup key for the

* sock in map.

* @map: pointer to sockmap

* @key: key to lookup sock in map

* @flags: reserved for future use

* Return: SK_REDIRECT

*

* int bpf_sock_map_update(skops, map, key, flags, map_flags)

* @skops: pointer to bpf_sock_ops

* @map: pointer to sockmap to update

* @key: key to insert/update sock in map

* @flags: same flags as map update elem

* @map_flags: sock map specific flags

* bit 1: Enable strparser

* other bits: reserved

*/

#define __BPF_FUNC_MAPPER(FN) \

FN(unspec), \

FN(set_hash), \

FN(setsockopt), \

FN(skb_adjust_room), \

FN(redirect_map),

FN(redirect_map), \

FN(sk_redirect_map), \

FN(sock_map_update), \

/* integer value in 'imm' field of BPF_CALL instruction selects which helper

* function eBPF program intends to call

__u32 data_end;

};

enum sk_action {

SK_ABORTED = 0,

SK_DROP,

SK_REDIRECT,

};

#define BPF_TAG_SIZE 8

struct bpf_prog_info {