1 files changed, 82 insertions, 0 deletions
diff --git a/lib/bpf.h b/lib/bpf.h
new file mode 100644
index 00000000..db80a51e
--- /dev/null
+++ b/lib/bpf.h
@@ -0,0 +1,82 @@
+/* Minimal extended BPF constants as alternative for linux/bpf.h.  */
+
+#ifndef _ELFUTILS_BPF_H
+#define _ELFUTILS_BPF_H 1
+
+#include <stdint.h>
+
+#define BPF_CLASS(code) ((code) & 0x07)
+
+#define BPF_LD    0x00
+#define BPF_LDX   0x01
+#define BPF_ST    0x02
+#define BPF_STX   0x03
+#define BPF_ALU   0x04
+#define BPF_JMP   0x05
+#define BPF_RET   0x06
+#define BPF_MISC  0x07
+
+#define BPF_ALU64 0x07
+
+#define BPF_JNE  0x50
+#define BPF_JSGT 0x60
+#define BPF_JSGE 0x70
+#define BPF_CALL 0x80
+#define BPF_EXIT 0x90
+
+#define BPF_W 0x00
+#define BPF_H 0x08
+#define BPF_B 0x10
+
+#define BPF_IMM 0x00
+#define BPF_ABS 0x20
+#define BPF_IND 0x40
+#define BPF_MEM 0x60
+#define BPF_LEN 0x80
+#define BPF_MSH 0xa0
+
+#define BPF_DW   0x18
+#define BPF_XADD 0xc0
+
+#define BPF_ADD 0x00
+#define BPF_SUB 0x10
+#define BPF_MUL 0x20
+#define BPF_DIV 0x30
+#define BPF_OR  0x40
+#define BPF_AND 0x50
+#define BPF_LSH 0x60
+#define BPF_RSH 0x70
+#define BPF_NEG 0x80
+#define BPF_MOD 0x90
+#define BPF_XOR 0xa0
+
+#define BPF_MOV  0xb0
+#define BPF_ARSH 0xc0
+
+#define BPF_JA   0x00
+#define BPF_JEQ  0x10
+#define BPF_JGT  0x20
+#define BPF_JGE  0x30
+#define BPF_JSET 0x40
+
+#define BPF_K 0x00
+#define BPF_X 0x08
+
+#define BPF_END   0xd0
+#define BPF_TO_LE 0x00
+#define BPF_TO_BE 0x08
+
+#define BPF_PSEUDO_MAP_FD 1
+
+#define MAX_BPF_REG 10
+
+struct bpf_insn
+{
+  uint8_t code;
+  uint8_t dst_reg:4;
+  uint8_t src_reg:4;
+  int16_t off;
+  int32_t imm;
+};
+
+#endif