bpf: update bpf.h uapi header for tools

Looks like a couple of updates missed to get carried into tools/include/uapi/,
so copy the bpf.h header as usual to pull in latest updates.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 461811e..e43491a 100644 (file)
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -143,12 +143,6 @@ enum bpf_attach_type {
 
 #define MAX_BPF_ATTACH_TYPE __MAX_BPF_ATTACH_TYPE
 
-enum bpf_sockmap_flags {
-       BPF_SOCKMAP_UNSPEC,
-       BPF_SOCKMAP_STRPARSER,
-       __MAX_BPF_SOCKMAP_FLAG
-};
-
 /* If BPF_F_ALLOW_OVERRIDE flag is used in BPF_PROG_ATTACH command
  * to the given target_fd cgroup the descendent cgroup will be able to
  * override effective bpf program that was inherited from this cgroup
@@ -368,9 +362,20 @@ union bpf_attr {
  * int bpf_redirect(ifindex, flags)
  *     redirect to another netdev
  *     @ifindex: ifindex of the net device
- *     @flags: bit 0 - if set, redirect to ingress instead of egress
- *             other bits - reserved
- *     Return: TC_ACT_REDIRECT
+ *     @flags:
+ *       cls_bpf:
+ *          bit 0 - if set, redirect to ingress instead of egress
+ *          other bits - reserved
+ *       xdp_bpf:
+ *         all bits - reserved
+ *     Return: cls_bpf: TC_ACT_REDIRECT on success or TC_ACT_SHOT on error
+ *            xdp_bfp: XDP_REDIRECT on success or XDP_ABORT on error
+ * int bpf_redirect_map(map, key, flags)
+ *     redirect to endpoint in map
+ *     @map: pointer to dev map
+ *     @key: index in map to lookup
+ *     @flags: --
+ *     Return: XDP_REDIRECT on success or XDP_ABORT on error
  *
  * u32 bpf_get_route_realm(skb)
  *     retrieve a dst's tclassid
@@ -577,6 +582,12 @@ union bpf_attr {
  *     @map: pointer to sockmap to update
  *     @key: key to insert/update sock in map
  *     @flags: same flags as map update elem
+ *
+ * int bpf_xdp_adjust_meta(xdp_md, delta)
+ *     Adjust the xdp_md.data_meta by delta
+ *     @xdp_md: pointer to xdp_md
+ *     @delta: An positive/negative integer to be added to xdp_md.data_meta
+ *     Return: 0 on success or negative on error
  */
 #define __BPF_FUNC_MAPPER(FN)          \
        FN(unspec),                     \
@@ -632,7 +643,8 @@ union bpf_attr {
        FN(skb_adjust_room),            \
        FN(redirect_map),               \
        FN(sk_redirect_map),            \
-       FN(sock_map_update),
+       FN(sock_map_update),            \
+       FN(xdp_adjust_meta),
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
  * function eBPF program intends to call
@@ -710,7 +722,7 @@ struct __sk_buff {
        __u32 data_end;
        __u32 napi_id;
 
-       /* accessed by BPF_PROG_TYPE_sk_skb types */
+       /* Accessed by BPF_PROG_TYPE_sk_skb types from here to ... */
        __u32 family;
        __u32 remote_ip4;       /* Stored in network byte order */
        __u32 local_ip4;        /* Stored in network byte order */
@@ -718,6 +730,9 @@ struct __sk_buff {
        __u32 local_ip6[4];     /* Stored in network byte order */
        __u32 remote_port;      /* Stored in network byte order */
        __u32 local_port;       /* stored in host byte order */
+       /* ... here. */
+
+       __u32 data_meta;
 };
 
 struct bpf_tunnel_key {
@@ -753,20 +768,23 @@ struct bpf_sock {
        __u32 family;
        __u32 type;
        __u32 protocol;
+       __u32 mark;
+       __u32 priority;
 };
 
 #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
- * in packet drop.
+ * return codes are reserved for future use. Unknown return codes will
+ * result in packet drops and a warning via bpf_warn_invalid_xdp_action().
  */
 enum xdp_action {
        XDP_ABORTED = 0,
        XDP_DROP,
        XDP_PASS,
        XDP_TX,
+       XDP_REDIRECT,
 };
 
 /* user accessible metadata for XDP packet hook
@@ -775,6 +793,7 @@ enum xdp_action {
 struct xdp_md {
        __u32 data;
        __u32 data_end;
+       __u32 data_meta;
 };
 
 enum sk_action {