Update tools/include/uapi/linux/bpf.h to include changes related to new bpf sock_ops program type.
Showing the changes to tools/include/uapi/linux (1 of 1 file). Show all
Unified · Split
| @@ -120,12 +120,14 @@ enum bpf_prog_type { · 119 unmodified lines | |||
| 120 | BPF_PROG_TYPE_LWT_IN, | 120 | BPF_PROG_TYPE_LWT_IN, |
| 121 | BPF_PROG_TYPE_LWT_OUT, | 121 | BPF_PROG_TYPE_LWT_OUT, |
| 122 | BPF_PROG_TYPE_LWT_XMIT, | 122 | BPF_PROG_TYPE_LWT_XMIT, |
| 123 | BPF_PROG_TYPE_SOCK_OPS, | ||
| 123 | }; | 124 | }; |
| 124 | 125 | ||
| 125 | enum bpf_attach_type { | 126 | enum bpf_attach_type { |
| 126 | BPF_CGROUP_INET_INGRESS, | 127 | BPF_CGROUP_INET_INGRESS, |
| 127 | BPF_CGROUP_INET_EGRESS, | 128 | BPF_CGROUP_INET_EGRESS, |
| 128 | BPF_CGROUP_INET_SOCK_CREATE, | 129 | BPF_CGROUP_INET_SOCK_CREATE, |
| 130 | BPF_CGROUP_SOCK_OPS, | ||
| 129 | __MAX_BPF_ATTACH_TYPE | 131 | __MAX_BPF_ATTACH_TYPE |
| 130 | }; | 132 | }; |
| 131 | 133 | ||
| @@ -518,6 +520,17 @@ union bpf_attr { · 386 unmodified lines | |||
| 518 | * Set full skb->hash. | 520 | * Set full skb->hash. |
| 519 | * @skb: pointer to skb | 521 | * @skb: pointer to skb |
| 520 | * @hash: hash to set | 522 | * @hash: hash to set |
| 523 | * | ||
| 524 | * int bpf_setsockopt(bpf_socket, level, optname, optval, optlen) | ||
| 525 | * Calls setsockopt. Not all opts are available, only those with | ||
| 526 | * integer optvals plus TCP_CONGESTION. | ||
| 527 | * Supported levels: SOL_SOCKET and IPROTO_TCP | ||
| 528 | * @bpf_socket: pointer to bpf_socket | ||
| 529 | * @level: SOL_SOCKET or IPROTO_TCP | ||
| 530 | * @optname: option name | ||
| 531 | * @optval: pointer to option value | ||
| 532 | * @optlen: length of optval in byes | ||
| 533 | * Return: 0 or negative error | ||
| 521 | */ | 534 | */ |
| 522 | #define __BPF_FUNC_MAPPER(FN) \ | 535 | #define __BPF_FUNC_MAPPER(FN) \ |
| 523 | FN(unspec), \ | 536 | FN(unspec), \ |
| @@ -568,7 +581,8 @@ union bpf_attr { · 44 unmodified lines | |||
| 568 | FN(probe_read_str), \ | 581 | FN(probe_read_str), \ |
| 569 | FN(get_socket_cookie), \ | 582 | FN(get_socket_cookie), \ |
| 570 | FN(get_socket_uid), \ | 583 | FN(get_socket_uid), \ |
| 571 | FN(set_hash), | 584 | FN(set_hash), \ |
| 585 | FN(setsockopt), | ||
| 572 | 586 | ||
| 573 | /* integer value in 'imm' field of BPF_CALL instruction selects which helper | 587 | /* integer value in 'imm' field of BPF_CALL instruction selects which helper |
| 574 | * function eBPF program intends to call | 588 | * function eBPF program intends to call |
| @@ -720,4 +734,54 @@ struct bpf_map_info { · 145 unmodified lines | |||
| 720 | __u32 map_flags; | 734 | __u32 map_flags; |
| 721 | } __attribute__((aligned(8))); | 735 | } __attribute__((aligned(8))); |
| 722 | 736 | ||
| 737 | /* User bpf_sock_ops struct to access socket values and specify request ops | ||
| 738 | * and their replies. | ||
| 739 | * New fields can only be added at the end of this structure | ||
| 740 | */ | ||
| 741 | struct bpf_sock_ops { | ||
| 742 | __u32 op; | ||
| 743 | union { | ||
| 744 | __u32 reply; | ||
| 745 | __u32 replylong[4]; | ||
| 746 | }; | ||
| 747 | __u32 family; | ||
| 748 | __u32 remote_ip4; | ||
| 749 | __u32 local_ip4; | ||
| 750 | __u32 remote_ip6[4]; | ||
| 751 | __u32 local_ip6[4]; | ||
| 752 | __u32 remote_port; | ||
| 753 | __u32 local_port; | ||
| 754 | }; | ||
| 755 | |||
| 756 | /* List of known BPF sock_ops operators. | ||
| 757 | * New entries can only be added at the end | ||
| 758 | */ | ||
| 759 | enum { | ||
| 760 | BPF_SOCK_OPS_VOID, | ||
| 761 | BPF_SOCK_OPS_TIMEOUT_INIT, /* Should return SYN-RTO value to use or | ||
| 762 | * -1 if default value should be used | ||
| 763 | */ | ||
| 764 | BPF_SOCK_OPS_RWND_INIT, /* Should return initial advertized | ||
| 765 | * window (in packets) or -1 if default | ||
| 766 | * value should be used | ||
| 767 | */ | ||
| 768 | BPF_SOCK_OPS_TCP_CONNECT_CB, /* Calls BPF program right before an | ||
| 769 | * active connection is initialized | ||
| 770 | */ | ||
| 771 | BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB, /* Calls BPF program when an | ||
| 772 | * active connection is | ||
| 773 | * established | ||
| 774 | */ | ||
| 775 | BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB, /* Calls BPF program when a | ||
| 776 | * passive connection is | ||
| 777 | * established | ||
| 778 | */ | ||
| 779 | BPF_SOCK_OPS_NEEDS_ECN, /* If connection's congestion control | ||
| 780 | * needs ECN | ||
| 781 | */ | ||
| 782 | }; | ||
| 783 | |||
| 784 | #define TCP_BPF_IW 1001 /* Set TCP initial congestion window */ | ||
| 785 | #define TCP_BPF_SNDCWND_CLAMP 1002 /* Set sndcwnd_clamp */ | ||
| 786 | |||
| 723 | #endif /* _UAPI__LINUX_BPF_H__ */ | 787 | #endif /* _UAPI__LINUX_BPF_H__ */ |