| #ifndef _XT_BPF_H |
| #define _XT_BPF_H |
| |
| #include <linux/filter.h> |
| #include <linux/limits.h> |
| #include <linux/types.h> |
| |
| #define XT_BPF_MAX_NUM_INSTR 64 |
| #define XT_BPF_PATH_MAX (XT_BPF_MAX_NUM_INSTR * sizeof(struct sock_filter)) |
| |
| struct bpf_prog; |
| |
| struct xt_bpf_info { |
| __u16 bpf_program_num_elem; |
| struct sock_filter bpf_program[XT_BPF_MAX_NUM_INSTR]; |
| |
| /* only used in the kernel */ |
| struct bpf_prog *filter __attribute__((aligned(8))); |
| }; |
| |
| enum xt_bpf_modes { |
| XT_BPF_MODE_BYTECODE, |
| XT_BPF_MODE_FD_PINNED, |
| XT_BPF_MODE_FD_ELF, |
| }; |
| #define XT_BPF_MODE_PATH_PINNED XT_BPF_MODE_FD_PINNED |
| |
| struct xt_bpf_info_v1 { |
| __u16 mode; |
| __u16 bpf_program_num_elem; |
| __s32 fd; |
| union { |
| struct sock_filter bpf_program[XT_BPF_MAX_NUM_INSTR]; |
| char path[XT_BPF_PATH_MAX]; |
| }; |
| |
| /* only used in the kernel */ |
| struct bpf_prog *filter __attribute__((aligned(8))); |
| }; |
| |
| #endif /*_XT_BPF_H */ |