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authorJakub Kicinski <jakub.kicinski@netronome.com>2018-05-14 22:35:03 -0700
committerAlexei Starovoitov <ast@kernel.org>2018-05-14 22:52:10 -0700
commit8d93045077aeede62127b6d6663bfdd31f6240da (patch)
tree96f4a0e5f3827ff3d849bb5047cd6aae1bdceab6 /samples/bpf/libbpf.h
parent2bf3e2ef425bc2a164f10b554b7db6a8b4090ef4 (diff)
downloadlinux-8d93045077aeede62127b6d6663bfdd31f6240da.tar.bz2
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.h199
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