[mirror_ubuntu-artful-kernel.git] / samples / bpf / bpf_load.h

#ifndef __BPF_LOAD_H
#define __BPF_LOAD_H

#include "libbpf.h"

#define MAX_MAPS 32
#define MAX_PROGS 32

extern int map_fd[MAX_MAPS];
extern int prog_fd[MAX_PROGS];
extern int event_fd[MAX_PROGS];
extern char bpf_log_buf[BPF_LOG_BUF_SIZE];
extern int prog_cnt;

/* 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(char *path);

void read_trace_pipe(void);
struct ksym {
	long addr;
	char *name;
};

int load_kallsyms(void);
struct ksym *ksym_search(long key);
int set_link_xdp_fd(int ifindex, int fd);
#endif
Commit	Line	Data
249b812d AS	1	#ifndef __BPF_LOAD_H
	2	#define __BPF_LOAD_H
	3
d40fc181 JS	4	#include "libbpf.h"
d40fc181 JS	5
249b812d AS	6	#define MAX_MAPS 32
	7	#define MAX_PROGS 32
	8
	9	extern int map_fd[MAX_MAPS];
	10	extern int prog_fd[MAX_PROGS];
b896c4f9	11	extern int event_fd[MAX_PROGS];
d40fc181	12	extern char bpf_log_buf[BPF_LOG_BUF_SIZE];
4f2e7ae5	13	extern int prog_cnt;
249b812d AS	14
	15	/* parses elf file compiled by llvm .c->.o
	16	* . parses 'maps' section and creates maps via BPF syscall
	17	* . parses 'license' section and passes it to syscall
	18	* . parses elf relocations for BPF maps and adjusts BPF_LD_IMM64 insns by
	19	* storing map_fd into insn->imm and marking such insns as BPF_PSEUDO_MAP_FD
	20	* . loads eBPF programs via BPF syscall
	21	*
	22	* One ELF file can contain multiple BPF programs which will be loaded
	23	* and their FDs stored stored in prog_fd array
	24	*
	25	* returns zero on success
	26	*/
	27	int load_bpf_file(char *path);
	28
b896c4f9	29	void read_trace_pipe(void);
3622e7e4 AS	30	struct ksym {
	31	long addr;
	32	char *name;
	33	};
b896c4f9	34
3622e7e4 AS	35	int load_kallsyms(void);
3622e7e4 AS	36	struct ksym *ksym_search(long key);
12d8bb64	37	int set_link_xdp_fd(int ifindex, int fd);
249b812d	38	#endif