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https://git.mirrors.martin98.com/https://github.com/ceph/ceph-csi.git
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bec6090996
Several packages are only used while running the e2e suite. These packages are less important to update, as the they can not influence the final executable that is part of the Ceph-CSI container-image. By moving these dependencies out of the main Ceph-CSI go.mod, it is easier to identify if a reported CVE affects Ceph-CSI, or only the testing (like most of the Kubernetes CVEs). Signed-off-by: Niels de Vos <ndevos@ibm.com>
58 lines
1.6 KiB
Go
58 lines
1.6 KiB
Go
// Copyright 2023 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build linux || netbsd
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package unix
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import "unsafe"
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type mremapMmapper struct {
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mmapper
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mremap func(oldaddr uintptr, oldlength uintptr, newlength uintptr, flags int, newaddr uintptr) (xaddr uintptr, err error)
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}
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var mapper = &mremapMmapper{
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mmapper: mmapper{
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active: make(map[*byte][]byte),
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mmap: mmap,
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munmap: munmap,
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},
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mremap: mremap,
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}
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func (m *mremapMmapper) Mremap(oldData []byte, newLength int, flags int) (data []byte, err error) {
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if newLength <= 0 || len(oldData) == 0 || len(oldData) != cap(oldData) || flags&mremapFixed != 0 {
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return nil, EINVAL
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}
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pOld := &oldData[cap(oldData)-1]
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m.Lock()
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defer m.Unlock()
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bOld := m.active[pOld]
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if bOld == nil || &bOld[0] != &oldData[0] {
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return nil, EINVAL
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}
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newAddr, errno := m.mremap(uintptr(unsafe.Pointer(&bOld[0])), uintptr(len(bOld)), uintptr(newLength), flags, 0)
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if errno != nil {
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return nil, errno
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}
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bNew := unsafe.Slice((*byte)(unsafe.Pointer(newAddr)), newLength)
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pNew := &bNew[cap(bNew)-1]
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if flags&mremapDontunmap == 0 {
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delete(m.active, pOld)
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}
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m.active[pNew] = bNew
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return bNew, nil
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}
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func Mremap(oldData []byte, newLength int, flags int) (data []byte, err error) {
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return mapper.Mremap(oldData, newLength, flags)
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}
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func MremapPtr(oldAddr unsafe.Pointer, oldSize uintptr, newAddr unsafe.Pointer, newSize uintptr, flags int) (ret unsafe.Pointer, err error) {
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xaddr, err := mapper.mremap(uintptr(oldAddr), oldSize, newSize, flags, uintptr(newAddr))
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return unsafe.Pointer(xaddr), err
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}
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