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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __BPF_LOAD_H
#define __BPF_LOAD_H

#define BPF_LOG_BUF_SIZE (256 * 1024)

#define MAX_MAPS 32
#define MAX_PROGS 64

struct bpf_load_map_def {
	unsigned int type;
	unsigned int key_size;
	unsigned int value_size;
	unsigned int max_entries;
	unsigned int map_flags;
	unsigned int inner_map_idx;
	unsigned int numa_node;
};

struct bpf_map_data {
	int fd;
	char *name;
	size_t elf_offset;
	struct bpf_load_map_def def;
};

struct raw_entry {
	struct raw_entry *next;
	u_int32_t scancode;
	u_int32_t raw_length;
	u_int32_t raw[1];
};

/* parses elf file compiled by llvm .c->.o
 * . parses 'maps' section and creates maps via BPF syscall
 * . parses 'license' section and passes it to syscall
 * . parses elf relocations for BPF maps and adjusts BPF_LD_IMM64 insns by
 *   storing map_fd into insn->imm and marking such insns as BPF_PSEUDO_MAP_FD
 * . loads eBPF programs via BPF syscall
 *
 * One ELF file can contain multiple BPF programs which will be loaded
 * and their FDs stored stored in prog_fd array
 *
 * returns zero on success
 */
int load_bpf_file(const char *path, int lirc_fd, struct toml_table_t *toml, struct raw_entry *raw);

int bpf_param(const char *name, int *val);

#endif

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