diff options
Diffstat (limited to 'include/uapi/linux/bpf.h')
| -rw-r--r-- | include/uapi/linux/bpf.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h index 6123d9b8e828..0eb0e87dbe9f 100644 --- a/include/uapi/linux/bpf.h +++ b/include/uapi/linux/bpf.h @@ -424,6 +424,12 @@ union bpf_attr { * @len: length of header to be pushed in front * @flags: Flags (unused for now) * Return: 0 on success or negative error + * + * int bpf_xdp_adjust_head(xdp_md, delta) + * Adjust the xdp_md.data by delta + * @xdp_md: pointer to xdp_md + * @delta: An positive/negative integer to be added to xdp_md.data + * Return: 0 on success or negative on error */ #define __BPF_FUNC_MAPPER(FN) \ FN(unspec), \ @@ -469,7 +475,8 @@ union bpf_attr { FN(csum_update), \ FN(set_hash_invalid), \ FN(get_numa_node_id), \ - FN(skb_change_head), + FN(skb_change_head), \ + FN(xdp_adjust_head), /* integer value in 'imm' field of BPF_CALL instruction selects which helper * function eBPF program intends to call @@ -576,6 +583,8 @@ struct bpf_sock { __u32 protocol; }; +#define XDP_PACKET_HEADROOM 256 + /* User return codes for XDP prog type. * A valid XDP program must return one of these defined values. All other * return codes are reserved for future use. Unknown return codes will result |