.arg4_type = ARG_CONST_SIZE
};
+#if IS_ENABLED(CONFIG_IPV6_SEG6_BPF)
BPF_CALL_4(bpf_lwt_seg6_store_bytes, struct sk_buff *, skb, u32, offset,
const void *, from, u32, len)
{
-#if IS_ENABLED(CONFIG_IPV6_SEG6_BPF)
struct seg6_bpf_srh_state *srh_state =
this_cpu_ptr(&seg6_bpf_srh_states);
void *srh_tlvs, *srh_end, *ptr;
memcpy(skb->data + offset, from, len);
return 0;
-#else /* CONFIG_IPV6_SEG6_BPF */
- return -EOPNOTSUPP;
-#endif
}
static const struct bpf_func_proto bpf_lwt_seg6_store_bytes_proto = {
BPF_CALL_4(bpf_lwt_seg6_action, struct sk_buff *, skb,
u32, action, void *, param, u32, param_len)
{
-#if IS_ENABLED(CONFIG_IPV6_SEG6_BPF)
struct seg6_bpf_srh_state *srh_state =
this_cpu_ptr(&seg6_bpf_srh_states);
struct ipv6_sr_hdr *srh;
default:
return -EINVAL;
}
-#else /* CONFIG_IPV6_SEG6_BPF */
- return -EOPNOTSUPP;
-#endif
}
static const struct bpf_func_proto bpf_lwt_seg6_action_proto = {
BPF_CALL_3(bpf_lwt_seg6_adjust_srh, struct sk_buff *, skb, u32, offset,
s32, len)
{
-#if IS_ENABLED(CONFIG_IPV6_SEG6_BPF)
struct seg6_bpf_srh_state *srh_state =
this_cpu_ptr(&seg6_bpf_srh_states);
void *srh_end, *srh_tlvs, *ptr;
srh_state->hdrlen += len;
srh_state->valid = 0;
return 0;
-#else /* CONFIG_IPV6_SEG6_BPF */
- return -EOPNOTSUPP;
-#endif
}
static const struct bpf_func_proto bpf_lwt_seg6_adjust_srh_proto = {
.arg2_type = ARG_ANYTHING,
.arg3_type = ARG_ANYTHING,
};
+#endif /* CONFIG_IPV6_SEG6_BPF */
bool bpf_helper_changes_pkt_data(void *func)
{
func == bpf_xdp_adjust_meta ||
func == bpf_msg_pull_data ||
func == bpf_xdp_adjust_tail ||
- func == bpf_lwt_push_encap ||
+#if IS_ENABLED(CONFIG_IPV6_SEG6_BPF)
func == bpf_lwt_seg6_store_bytes ||
func == bpf_lwt_seg6_adjust_srh ||
- func == bpf_lwt_seg6_action
- )
+ func == bpf_lwt_seg6_action ||
+#endif
+ func == bpf_lwt_push_encap)
return true;
return false;
lwt_seg6local_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
{
switch (func_id) {
+#if IS_ENABLED(CONFIG_IPV6_SEG6_BPF)
case BPF_FUNC_lwt_seg6_store_bytes:
return &bpf_lwt_seg6_store_bytes_proto;
case BPF_FUNC_lwt_seg6_action:
return &bpf_lwt_seg6_action_proto;
case BPF_FUNC_lwt_seg6_adjust_srh:
return &bpf_lwt_seg6_adjust_srh_proto;
+#endif
default:
return lwt_out_func_proto(func_id, prog);
}