diff options
Diffstat (limited to 'include/linux/filter.h')
| -rw-r--r-- | include/linux/filter.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h index 6a16583..7023142 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -57,9 +57,6 @@ struct bpf_prog_aux; /* BPF program can access up to 512 bytes of stack space. */ #define MAX_BPF_STACK 512 -/* Maximum BPF program size in bytes. */ -#define MAX_BPF_SIZE (BPF_MAXINSNS * sizeof(struct bpf_insn)) - /* Helper macros for filter block array initializers. */ /* ALU ops on registers, bpf_add|sub|...: dst_reg += src_reg */ @@ -517,6 +514,17 @@ static __always_inline u32 bpf_prog_run_xdp(const struct bpf_prog *prog, return BPF_PROG_RUN(prog, xdp); } +static inline u32 bpf_prog_insn_size(const struct bpf_prog *prog) +{ + return prog->len * sizeof(struct bpf_insn); +} + +static inline u32 bpf_prog_digest_scratch_size(const struct bpf_prog *prog) +{ + return round_up(bpf_prog_insn_size(prog) + + sizeof(__be64) + 1, SHA_MESSAGE_BYTES); +} + static inline unsigned int bpf_prog_size(unsigned int proglen) { return max(sizeof(struct bpf_prog), @@ -602,6 +610,7 @@ bool bpf_helper_changes_pkt_data(void *func); struct bpf_prog *bpf_patch_insn_single(struct bpf_prog *prog, u32 off, const struct bpf_insn *patch, u32 len); void bpf_warn_invalid_xdp_action(u32 act); +void bpf_warn_invalid_xdp_buffer(void); #ifdef CONFIG_BPF_JIT extern int bpf_jit_enable; |
