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The C and C++ Include Header Files

cat -n /usr/include/linux/io_uring/bpf_filter.h

     1	/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR MIT */
     2	/*
     3	 * Header file for the io_uring BPF filters.
     4	 */
     5	#ifndef LINUX_IO_URING_BPF_FILTER_H
     6	#define LINUX_IO_URING_BPF_FILTER_H
     7	
     8	#include <linux/types.h>
     9	
    10	/*
    11	 * Struct passed to filters.
    12	 */
    13	struct io_uring_bpf_ctx {
    14		__u64	user_data;
    15		__u8	opcode;
    16		__u8	sqe_flags;
    17		__u8	pdu_size;	/* size of aux data for filter */
    18		__u8	pad[5];
    19		union {
    20			struct {
    21				__u32	family;
    22				__u32	type;
    23				__u32	protocol;
    24			} socket;
    25			struct {
    26				__u64	flags;
    27				__u64	mode;
    28				__u64	resolve;
    29			} open;
    30		};
    31	};
    32	
    33	enum {
    34		/*
    35		 * If set, any currently unset opcode will have a deny filter attached
    36		 */
    37		IO_URING_BPF_FILTER_DENY_REST	= 1,
    38		/*
    39		 * If set, if kernel and application don't agree on pdu_size for
    40		 * the given opcode, fail the registration of the filter.
    41		 */
    42		IO_URING_BPF_FILTER_SZ_STRICT	= 2,
    43	};
    44	
    45	struct io_uring_bpf_filter {
    46		__u32	opcode;		/* io_uring opcode to filter */
    47		__u32	flags;
    48		__u32	filter_len;	/* number of BPF instructions */
    49		__u8	pdu_size;	/* expected pdu size for opcode */
    50		__u8	resv[3];
    51		__u64	filter_ptr;	/* pointer to BPF filter */
    52		__u64	resv2[5];
    53	};
    54	
    55	enum {
    56		IO_URING_BPF_CMD_FILTER	= 1,
    57	};
    58	
    59	struct io_uring_bpf {
    60		__u16	cmd_type;	/* IO_URING_BPF_* values */
    61		__u16	cmd_flags;	/* none so far */
    62		__u32	resv;
    63		union {
    64			struct io_uring_bpf_filter	filter;
    65		};
    66	};
    67	
    68	#endif