1 files changed, 27 insertions, 16 deletions

diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 7ba61b75bc0e..7a5498242eaa 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -1052,6 +1052,8 @@ enum bpf_attach_type {
 	BPF_CGROUP_UNIX_RECVMSG,
 	BPF_CGROUP_UNIX_GETPEERNAME,
 	BPF_CGROUP_UNIX_GETSOCKNAME,
+	BPF_NETKIT_PRIMARY,
+	BPF_NETKIT_PEER,
 	__MAX_BPF_ATTACH_TYPE
 };
 
@@ -1071,6 +1073,7 @@ enum bpf_link_type {
 	BPF_LINK_TYPE_NETFILTER = 10,
 	BPF_LINK_TYPE_TCX = 11,
 	BPF_LINK_TYPE_UPROBE_MULTI = 12,
+	BPF_LINK_TYPE_NETKIT = 13,
 	MAX_BPF_LINK_TYPE,
 };
 
@@ -1197,6 +1200,9 @@ enum bpf_perf_event_type {
  */
 #define BPF_F_XDP_DEV_BOUND_ONLY	(1U << 6)
 
+/* The verifier internal test flag. Behavior is undefined */
+#define BPF_F_TEST_REG_INVARIANTS	(1U << 7)
+
 /* link_create.kprobe_multi.flags used in LINK_CREATE command for
  * BPF_TRACE_KPROBE_MULTI attach type to create return probe.
  */
@@ -1656,6 +1662,13 @@ union bpf_attr {
 				__u32		flags;
 				__u32		pid;
 			} uprobe_multi;
+			struct {
+				union {
+					__u32	relative_fd;
+					__u32	relative_id;
+				};
+				__u64		expected_revision;
+			} netkit;
 		};
 	} link_create;
 
@@ -4507,6 +4520,8 @@ union bpf_attr {
  * long bpf_get_task_stack(struct task_struct *task, void *buf, u32 size, u64 flags)
  *	Description
  *		Return a user or a kernel stack in bpf program provided buffer.
+ *		Note: the user stack will only be populated if the *task* is
+ *		the current task; all other tasks will return -EOPNOTSUPP.
  *		To achieve this, the helper needs *task*, which is a valid
  *		pointer to **struct task_struct**. To store the stacktrace, the
  *		bpf program provides *buf* with a nonnegative *size*.
@@ -4518,6 +4533,7 @@ union bpf_attr {
  *
  *		**BPF_F_USER_STACK**
  *			Collect a user space stack instead of a kernel stack.
+ *			The *task* must be the current task.
  *		**BPF_F_USER_BUILD_ID**
  *			Collect buildid+offset instead of ips for user stack,
  *			only valid if **BPF_F_USER_STACK** is also specified.
@@ -6576,6 +6592,10 @@ struct bpf_link_info {
 			__u32 ifindex;
 			__u32 attach_type;
 		} tcx;
+		struct {
+			__u32 ifindex;
+			__u32 attach_type;
+		} netkit;
 	};
 } __attribute__((aligned(8)));
 
@@ -7137,40 +7157,31 @@ struct bpf_spin_lock {
 };
 
 struct bpf_timer {
-	__u64 :64;
-	__u64 :64;
+	__u64 __opaque[2];
 } __attribute__((aligned(8)));
 
 struct bpf_dynptr {
-	__u64 :64;
-	__u64 :64;
+	__u64 __opaque[2];
 } __attribute__((aligned(8)));
 
 struct bpf_list_head {
-	__u64 :64;
-	__u64 :64;
+	__u64 __opaque[2];
 } __attribute__((aligned(8)));
 
 struct bpf_list_node {
-	__u64 :64;
-	__u64 :64;
-	__u64 :64;
+	__u64 __opaque[3];
 } __attribute__((aligned(8)));
 
 struct bpf_rb_root {
-	__u64 :64;
-	__u64 :64;
+	__u64 __opaque[2];
 } __attribute__((aligned(8)));
 
 struct bpf_rb_node {
-	__u64 :64;
-	__u64 :64;
-	__u64 :64;
-	__u64 :64;
+	__u64 __opaque[4];
 } __attribute__((aligned(8)));
 
 struct bpf_refcount {
-	__u32 :32;
+	__u32 __opaque[1];
 } __attribute__((aligned(4)));
 
 struct bpf_sysctl {