Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 04df41e3 authored by Lawrence Brakmo's avatar Lawrence Brakmo Committed by David S. Miller
Browse files

bpf: update tools/include/uapi/linux/bpf.h 



Update tools/include/uapi/linux/bpf.h to include changes related to new
bpf sock_ops program type.

Signed-off-by: default avatarLawrence Brakmo <brakmo@fb.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6c4a01b2

tools/include/uapi/linux/bpf.h

+65 −1
Original line number Diff line number Diff line
@@ -120,12 +120,14 @@ enum bpf_prog_type { 
	BPF_PROG_TYPE_LWT_IN,

	BPF_PROG_TYPE_LWT_OUT,

	BPF_PROG_TYPE_LWT_XMIT,

	BPF_PROG_TYPE_SOCK_OPS,

};



enum bpf_attach_type {

	BPF_CGROUP_INET_INGRESS,

	BPF_CGROUP_INET_EGRESS,

	BPF_CGROUP_INET_SOCK_CREATE,

	BPF_CGROUP_SOCK_OPS,

	__MAX_BPF_ATTACH_TYPE

};
@@ -518,6 +520,17 @@ union bpf_attr { 
 *     Set full skb->hash.

 *     @skb: pointer to skb

 *     @hash: hash to set

 *

 * int bpf_setsockopt(bpf_socket, level, optname, optval, optlen)

 *     Calls setsockopt. Not all opts are available, only those with

 *     integer optvals plus TCP_CONGESTION.

 *     Supported levels: SOL_SOCKET and IPROTO_TCP

 *     @bpf_socket: pointer to bpf_socket

 *     @level: SOL_SOCKET or IPROTO_TCP

 *     @optname: option name

 *     @optval: pointer to option value

 *     @optlen: length of optval in byes

 *     Return: 0 or negative error

 */

#define __BPF_FUNC_MAPPER(FN)		\

	FN(unspec),			\
@@ -568,7 +581,8 @@ union bpf_attr { 
	FN(probe_read_str),		\

	FN(get_socket_cookie),		\

	FN(get_socket_uid),		\

	FN(set_hash),

	FN(set_hash),			\

	FN(setsockopt),



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

 * function eBPF program intends to call
@@ -720,4 +734,54 @@ struct bpf_map_info { 
	__u32 map_flags;

} __attribute__((aligned(8)));



/* User bpf_sock_ops struct to access socket values and specify request ops

 * and their replies.

 * New fields can only be added at the end of this structure

 */

struct bpf_sock_ops {

	__u32 op;

	union {

		__u32 reply;

		__u32 replylong[4];

	};

	__u32 family;

	__u32 remote_ip4;

	__u32 local_ip4;

	__u32 remote_ip6[4];

	__u32 local_ip6[4];

	__u32 remote_port;

	__u32 local_port;

};



/* List of known BPF sock_ops operators.

 * New entries can only be added at the end

 */

enum {

	BPF_SOCK_OPS_VOID,

	BPF_SOCK_OPS_TIMEOUT_INIT,	/* Should return SYN-RTO value to use or

					 * -1 if default value should be used

					 */

	BPF_SOCK_OPS_RWND_INIT,		/* Should return initial advertized

					 * window (in packets) or -1 if default

					 * value should be used

					 */

	BPF_SOCK_OPS_TCP_CONNECT_CB,	/* Calls BPF program right before an

					 * active connection is initialized

					 */

	BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB,	/* Calls BPF program when an

						 * active connection is

						 * established

						 */

	BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB,	/* Calls BPF program when a

						 * passive connection is

						 * established

						 */

	BPF_SOCK_OPS_NEEDS_ECN,		/* If connection's congestion control

					 * needs ECN

					 */

};



#define TCP_BPF_IW		1001	/* Set TCP initial congestion window */

#define TCP_BPF_SNDCWND_CLAMP	1002	/* Set sndcwnd_clamp */



#endif /* _UAPI__LINUX_BPF_H__ */