[chore]: Bump github.com/KimMachineGun/automemlimit from 0.2.4 to 0.2.5 (#1666)

Bumps [github.com/KimMachineGun/automemlimit](https://github.com/KimMachineGun/automemlimit) from 0.2.4 to 0.2.5.
- [Release notes](https://github.com/KimMachineGun/automemlimit/releases)
- [Commits](https://github.com/KimMachineGun/automemlimit/compare/v0.2.4...v0.2.5)

---
updated-dependencies:
- dependency-name: github.com/KimMachineGun/automemlimit
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
This commit is contained in:
dependabot[bot] 2023-04-03 11:16:17 +02:00 committed by GitHub
commit 57dc742c76
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200 changed files with 16392 additions and 38190 deletions

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@ -3,8 +3,10 @@ package link
import (
"fmt"
"io"
"unsafe"
"github.com/cilium/ebpf"
"github.com/cilium/ebpf/internal/sys"
)
type IterOptions struct {
@ -15,77 +17,69 @@ type IterOptions struct {
// AttachTo requires the kernel to include BTF of itself,
// and it to be compiled with a recent pahole (>= 1.16).
Program *ebpf.Program
// Map specifies the target map for bpf_map_elem and sockmap iterators.
// It may be nil.
Map *ebpf.Map
}
// AttachIter attaches a BPF seq_file iterator.
func AttachIter(opts IterOptions) (*Iter, error) {
link, err := AttachRawLink(RawLinkOptions{
Program: opts.Program,
Attach: ebpf.AttachTraceIter,
})
if err := haveBPFLink(); err != nil {
return nil, err
}
progFd := opts.Program.FD()
if progFd < 0 {
return nil, fmt.Errorf("invalid program: %s", sys.ErrClosedFd)
}
var info bpfIterLinkInfoMap
if opts.Map != nil {
mapFd := opts.Map.FD()
if mapFd < 0 {
return nil, fmt.Errorf("invalid map: %w", sys.ErrClosedFd)
}
info.map_fd = uint32(mapFd)
}
attr := sys.LinkCreateIterAttr{
ProgFd: uint32(progFd),
AttachType: sys.AttachType(ebpf.AttachTraceIter),
IterInfo: sys.NewPointer(unsafe.Pointer(&info)),
IterInfoLen: uint32(unsafe.Sizeof(info)),
}
fd, err := sys.LinkCreateIter(&attr)
if err != nil {
return nil, fmt.Errorf("can't link iterator: %w", err)
}
return &Iter{link}, err
}
// LoadPinnedIter loads a pinned iterator from a bpffs.
func LoadPinnedIter(fileName string) (*Iter, error) {
link, err := LoadPinnedRawLink(fileName)
if err != nil {
return nil, err
}
return &Iter{link}, err
return &Iter{RawLink{fd, ""}}, err
}
// Iter represents an attached bpf_iter.
type Iter struct {
link *RawLink
}
var _ Link = (*Iter)(nil)
func (it *Iter) isLink() {}
// FD returns the underlying file descriptor.
func (it *Iter) FD() int {
return it.link.FD()
}
// Close implements Link.
func (it *Iter) Close() error {
return it.link.Close()
}
// Pin implements Link.
func (it *Iter) Pin(fileName string) error {
return it.link.Pin(fileName)
}
// Update implements Link.
func (it *Iter) Update(new *ebpf.Program) error {
return it.link.Update(new)
RawLink
}
// Open creates a new instance of the iterator.
//
// Reading from the returned reader triggers the BPF program.
func (it *Iter) Open() (io.ReadCloser, error) {
linkFd, err := it.link.fd.Value()
if err != nil {
return nil, err
attr := &sys.IterCreateAttr{
LinkFd: it.fd.Uint(),
}
attr := &bpfIterCreateAttr{
linkFd: linkFd,
}
fd, err := bpfIterCreate(attr)
fd, err := sys.IterCreate(attr)
if err != nil {
return nil, fmt.Errorf("can't create iterator: %w", err)
}
return fd.File("bpf_iter"), nil
}
// union bpf_iter_link_info.map
type bpfIterLinkInfoMap struct {
map_fd uint32
}