diff options
| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2018-05-14 22:35:03 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-05-14 22:52:10 -0700 |
| commit | 8d93045077aeede62127b6d6663bfdd31f6240da (patch) | |
| tree | 96f4a0e5f3827ff3d849bb5047cd6aae1bdceab6 /samples/bpf/libbpf.h | |
| parent | 2bf3e2ef425bc2a164f10b554b7db6a8b4090ef4 (diff) | |
samples: bpf: rename libbpf.h to bpf_insn.h
The libbpf.h file in samples is clashing with libbpf's header.
Since it only includes a subset of filter.h instruction helpers
rename it to bpf_insn.h. Drop the unnecessary include of bpf/bpf.h.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'samples/bpf/libbpf.h')
| -rw-r--r-- | samples/bpf/libbpf.h | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/samples/bpf/libbpf.h b/samples/bpf/libbpf.h deleted file mode 100644 index 18bfee5aab6b..000000000000 --- a/samples/bpf/libbpf.h +++ /dev/null @@ -1,199 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* eBPF mini library */ -#ifndef __LIBBPF_H -#define __LIBBPF_H - -#include <bpf/bpf.h> - -struct bpf_insn; - -/* ALU ops on registers, bpf_add|sub|...: dst_reg += src_reg */ - -#define BPF_ALU64_REG(OP, DST, SRC) \ - ((struct bpf_insn) { \ - .code = BPF_ALU64 | BPF_OP(OP) | BPF_X, \ - .dst_reg = DST, \ - .src_reg = SRC, \ - .off = 0, \ - .imm = 0 }) - -#define BPF_ALU32_REG(OP, DST, SRC) \ - ((struct bpf_insn) { \ - .code = BPF_ALU | BPF_OP(OP) | BPF_X, \ - .dst_reg = DST, \ - .src_reg = SRC, \ - .off = 0, \ - .imm = 0 }) - -/* ALU ops on immediates, bpf_add|sub|...: dst_reg += imm32 */ - -#define BPF_ALU64_IMM(OP, DST, IMM) \ - ((struct bpf_insn) { \ - .code = BPF_ALU64 | BPF_OP(OP) | BPF_K, \ - .dst_reg = DST, \ - .src_reg = 0, \ - .off = 0, \ - .imm = IMM }) - -#define BPF_ALU32_IMM(OP, DST, IMM) \ - ((struct bpf_insn) { \ - .code = BPF_ALU | BPF_OP(OP) | BPF_K, \ - .dst_reg = DST, \ - .src_reg = 0, \ - .off = 0, \ - .imm = IMM }) - -/* Short form of mov, dst_reg = src_reg */ - -#define BPF_MOV64_REG(DST, SRC) \ - ((struct bpf_insn) { \ - .code = BPF_ALU64 | BPF_MOV | BPF_X, \ - .dst_reg = DST, \ - .src_reg = SRC, \ - .off = 0, \ - .imm = 0 }) - -#define BPF_MOV32_REG(DST, SRC) \ - ((struct bpf_insn) { \ - .code = BPF_ALU | BPF_MOV | BPF_X, \ - .dst_reg = DST, \ - .src_reg = SRC, \ - .off = 0, \ - .imm = 0 }) - -/* Short form of mov, dst_reg = imm32 */ - -#define BPF_MOV64_IMM(DST, IMM) \ - ((struct bpf_insn) { \ - .code = BPF_ALU64 | BPF_MOV | BPF_K, \ - .dst_reg = DST, \ - .src_reg = 0, \ - .off = 0, \ - .imm = IMM }) - -#define BPF_MOV32_IMM(DST, IMM) \ - ((struct bpf_insn) { \ - .code = BPF_ALU | BPF_MOV | BPF_K, \ - .dst_reg = DST, \ - .src_reg = 0, \ - .off = 0, \ - .imm = IMM }) - -/* BPF_LD_IMM64 macro encodes single 'load 64-bit immediate' insn */ -#define BPF_LD_IMM64(DST, IMM) \ - BPF_LD_IMM64_RAW(DST, 0, IMM) - -#define BPF_LD_IMM64_RAW(DST, SRC, IMM) \ - ((struct bpf_insn) { \ - .code = BPF_LD | BPF_DW | BPF_IMM, \ - .dst_reg = DST, \ - .src_reg = SRC, \ - .off = 0, \ - .imm = (__u32) (IMM) }), \ - ((struct bpf_insn) { \ - .code = 0, /* zero is reserved opcode */ \ - .dst_reg = 0, \ - .src_reg = 0, \ - .off = 0, \ - .imm = ((__u64) (IMM)) >> 32 }) - -#ifndef BPF_PSEUDO_MAP_FD -# define BPF_PSEUDO_MAP_FD 1 -#endif - -/* pseudo BPF_LD_IMM64 insn used to refer to process-local map_fd */ -#define BPF_LD_MAP_FD(DST, MAP_FD) \ - BPF_LD_IMM64_RAW(DST, BPF_PSEUDO_MAP_FD, MAP_FD) - - -/* Direct packet access, R0 = *(uint *) (skb->data + imm32) */ - -#define BPF_LD_ABS(SIZE, IMM) \ - ((struct bpf_insn) { \ - .code = BPF_LD | BPF_SIZE(SIZE) | BPF_ABS, \ - .dst_reg = 0, \ - .src_reg = 0, \ - .off = 0, \ - .imm = IMM }) - -/* Memory load, dst_reg = *(uint *) (src_reg + off16) */ - -#define BPF_LDX_MEM(SIZE, DST, SRC, OFF) \ - ((struct bpf_insn) { \ - .code = BPF_LDX | BPF_SIZE(SIZE) | BPF_MEM, \ - .dst_reg = DST, \ - .src_reg = SRC, \ - .off = OFF, \ - .imm = 0 }) - -/* Memory store, *(uint *) (dst_reg + off16) = src_reg */ - -#define BPF_STX_MEM(SIZE, DST, SRC, OFF) \ - ((struct bpf_insn) { \ - .code = BPF_STX | BPF_SIZE(SIZE) | BPF_MEM, \ - .dst_reg = DST, \ - .src_reg = SRC, \ - .off = OFF, \ - .imm = 0 }) - -/* Atomic memory add, *(uint *)(dst_reg + off16) += src_reg */ - -#define BPF_STX_XADD(SIZE, DST, SRC, OFF) \ - ((struct bpf_insn) { \ - .code = BPF_STX | BPF_SIZE(SIZE) | BPF_XADD, \ - .dst_reg = DST, \ - .src_reg = SRC, \ - .off = OFF, \ - .imm = 0 }) - -/* Memory store, *(uint *) (dst_reg + off16) = imm32 */ - -#define BPF_ST_MEM(SIZE, DST, OFF, IMM) \ - ((struct bpf_insn) { \ - .code = BPF_ST | BPF_SIZE(SIZE) | BPF_MEM, \ - .dst_reg = DST, \ - .src_reg = 0, \ - .off = OFF, \ - .imm = IMM }) - -/* Conditional jumps against registers, if (dst_reg 'op' src_reg) goto pc + off16 */ - -#define BPF_JMP_REG(OP, DST, SRC, OFF) \ - ((struct bpf_insn) { \ - .code = BPF_JMP | BPF_OP(OP) | BPF_X, \ - .dst_reg = DST, \ - .src_reg = SRC, \ - .off = OFF, \ - .imm = 0 }) - -/* Conditional jumps against immediates, if (dst_reg 'op' imm32) goto pc + off16 */ - -#define BPF_JMP_IMM(OP, DST, IMM, OFF) \ - ((struct bpf_insn) { \ - .code = BPF_JMP | BPF_OP(OP) | BPF_K, \ - .dst_reg = DST, \ - .src_reg = 0, \ - .off = OFF, \ - .imm = IMM }) - -/* Raw code statement block */ - -#define BPF_RAW_INSN(CODE, DST, SRC, OFF, IMM) \ - ((struct bpf_insn) { \ - .code = CODE, \ - .dst_reg = DST, \ - .src_reg = SRC, \ - .off = OFF, \ - .imm = IMM }) - -/* Program exit */ - -#define BPF_EXIT_INSN() \ - ((struct bpf_insn) { \ - .code = BPF_JMP | BPF_EXIT, \ - .dst_reg = 0, \ - .src_reg = 0, \ - .off = 0, \ - .imm = 0 }) - -#endif |