1 files changed, 0 insertions, 103 deletions
diff --git a/vendor/github.com/cilium/ebpf/link/syscalls.go b/vendor/github.com/cilium/ebpf/link/syscalls.go
deleted file mode 100644
index a661395b3..000000000
--- a/vendor/github.com/cilium/ebpf/link/syscalls.go
+++ /dev/null
@@ -1,103 +0,0 @@
-package link
-
-import (
-	"errors"
-
-	"github.com/cilium/ebpf"
-	"github.com/cilium/ebpf/asm"
-	"github.com/cilium/ebpf/internal"
-	"github.com/cilium/ebpf/internal/sys"
-	"github.com/cilium/ebpf/internal/unix"
-)
-
-// Type is the kind of link.
-type Type = sys.LinkType
-
-// Valid link types.
-const (
-	UnspecifiedType   = sys.BPF_LINK_TYPE_UNSPEC
-	RawTracepointType = sys.BPF_LINK_TYPE_RAW_TRACEPOINT
-	TracingType       = sys.BPF_LINK_TYPE_TRACING
-	CgroupType        = sys.BPF_LINK_TYPE_CGROUP
-	IterType          = sys.BPF_LINK_TYPE_ITER
-	NetNsType         = sys.BPF_LINK_TYPE_NETNS
-	XDPType           = sys.BPF_LINK_TYPE_XDP
-	PerfEventType     = sys.BPF_LINK_TYPE_PERF_EVENT
-)
-
-var haveProgAttach = internal.FeatureTest("BPF_PROG_ATTACH", "4.10", func() error {
-	prog, err := ebpf.NewProgram(&ebpf.ProgramSpec{
-		Type:    ebpf.CGroupSKB,
-		License: "MIT",
-		Instructions: asm.Instructions{
-			asm.Mov.Imm(asm.R0, 0),
-			asm.Return(),
-		},
-	})
-	if err != nil {
-		return internal.ErrNotSupported
-	}
-
-	// BPF_PROG_ATTACH was introduced at the same time as CGgroupSKB,
-	// so being able to load the program is enough to infer that we
-	// have the syscall.
-	prog.Close()
-	return nil
-})
-
-var haveProgAttachReplace = internal.FeatureTest("BPF_PROG_ATTACH atomic replacement", "5.5", func() error {
-	if err := haveProgAttach(); err != nil {
-		return err
-	}
-
-	prog, err := ebpf.NewProgram(&ebpf.ProgramSpec{
-		Type:       ebpf.CGroupSKB,
-		AttachType: ebpf.AttachCGroupInetIngress,
-		License:    "MIT",
-		Instructions: asm.Instructions{
-			asm.Mov.Imm(asm.R0, 0),
-			asm.Return(),
-		},
-	})
-	if err != nil {
-		return internal.ErrNotSupported
-	}
-	defer prog.Close()
-
-	// We know that we have BPF_PROG_ATTACH since we can load CGroupSKB programs.
-	// If passing BPF_F_REPLACE gives us EINVAL we know that the feature isn't
-	// present.
-	attr := sys.ProgAttachAttr{
-		// We rely on this being checked after attachFlags.
-		TargetFd:    ^uint32(0),
-		AttachBpfFd: uint32(prog.FD()),
-		AttachType:  uint32(ebpf.AttachCGroupInetIngress),
-		AttachFlags: uint32(flagReplace),
-	}
-
-	err = sys.ProgAttach(&attr)
-	if errors.Is(err, unix.EINVAL) {
-		return internal.ErrNotSupported
-	}
-	if errors.Is(err, unix.EBADF) {
-		return nil
-	}
-	return err
-})
-
-var haveBPFLink = internal.FeatureTest("bpf_link", "5.7", func() error {
-	attr := sys.LinkCreateAttr{
-		// This is a hopefully invalid file descriptor, which triggers EBADF.
-		TargetFd:   ^uint32(0),
-		ProgFd:     ^uint32(0),
-		AttachType: sys.AttachType(ebpf.AttachCGroupInetIngress),
-	}
-	_, err := sys.LinkCreate(&attr)
-	if errors.Is(err, unix.EINVAL) {
-		return internal.ErrNotSupported
-	}
-	if errors.Is(err, unix.EBADF) {
-		return nil
-	}
-	return err
-})