From 0a2e3f14e7c41b88333737328bdae28862503115 Mon Sep 17 00:00:00 2001 From: Sebastiaan van Stijn Date: Tue, 14 Mar 2023 13:12:31 +0100 Subject: [PATCH] vendor: github.com/opencontainers/selinux v1.11.0 full diff: https://github.com/opencontainers/selinux/compare/v1.10.2...v1.11.0 Signed-off-by: Sebastiaan van Stijn --- vendor.mod | 2 +- vendor.sum | 4 +- .../selinux/go-selinux/label/label.go | 22 ++- .../selinux/go-selinux/rchcon.go | 34 ---- .../selinux/go-selinux/rchcon_go115.go | 22 --- .../selinux/go-selinux/selinux.go | 30 ++- .../selinux/go-selinux/selinux_linux.go | 185 ++++++++---------- .../selinux/go-selinux/selinux_stub.go | 44 ++--- .../selinux/pkg/pwalk/README.md | 48 ----- .../opencontainers/selinux/pkg/pwalk/pwalk.go | 115 ----------- .../selinux/pkg/pwalkdir/pwalkdir.go | 2 +- vendor/modules.txt | 5 +- 12 files changed, 150 insertions(+), 363 deletions(-) delete mode 100644 vendor/github.com/opencontainers/selinux/go-selinux/rchcon.go delete mode 100644 vendor/github.com/opencontainers/selinux/go-selinux/rchcon_go115.go delete mode 100644 vendor/github.com/opencontainers/selinux/pkg/pwalk/README.md delete mode 100644 vendor/github.com/opencontainers/selinux/pkg/pwalk/pwalk.go diff --git a/vendor.mod b/vendor.mod index a7cdb6be86..499234565e 100644 --- a/vendor.mod +++ b/vendor.mod @@ -73,7 +73,7 @@ require ( github.com/opencontainers/image-spec v1.0.3-0.20220303224323-02efb9a75ee1 github.com/opencontainers/runc v1.1.3 github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417 - github.com/opencontainers/selinux v1.10.2 + github.com/opencontainers/selinux v1.11.0 github.com/pelletier/go-toml v1.9.5 github.com/pkg/errors v0.9.1 github.com/prometheus/client_golang v1.14.0 diff --git a/vendor.sum b/vendor.sum index 3b7db7cc45..536839f376 100644 --- a/vendor.sum +++ b/vendor.sum @@ -1162,8 +1162,8 @@ github.com/opencontainers/selinux v1.6.0/go.mod h1:VVGKuOLlE7v4PJyT6h7mNWvq1rzqi github.com/opencontainers/selinux v1.8.0/go.mod h1:RScLhm78qiWa2gbVCcGkC7tCGdgk3ogry1nUQF8Evvo= github.com/opencontainers/selinux v1.8.2/go.mod h1:MUIHuUEvKB1wtJjQdOyYRgOnLD2xAPP8dBsCoU0KuF8= github.com/opencontainers/selinux v1.10.0/go.mod h1:2i0OySw99QjzBBQByd1Gr9gSjvuho1lHsJxIJ3gGbJI= -github.com/opencontainers/selinux v1.10.2 h1:NFy2xCsjn7+WspbfZkUd5zyVeisV7VFbPSP96+8/ha4= -github.com/opencontainers/selinux v1.10.2/go.mod h1:cARutUbaUrlRClyvxOICCgKixCs6L05aUsohzA3EkHQ= +github.com/opencontainers/selinux v1.11.0 h1:+5Zbo97w3Lbmb3PeqQtpmTkMwsW5nRI3YaLpt7tQ7oU= +github.com/opencontainers/selinux v1.11.0/go.mod h1:E5dMC3VPuVvVHDYmi78qvhJp8+M586T4DlDRYpFkyec= github.com/opentracing-contrib/go-stdlib v1.0.0/go.mod h1:qtI1ogk+2JhVPIXVc6q+NHziSmy2W5GbdQZFUHADCBU= github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o= github.com/opentracing/opentracing-go v1.2.0/go.mod h1:GxEUsuufX4nBwe+T+Wl9TAgYrxe9dPLANfrWvHYVTgc= diff --git a/vendor/github.com/opencontainers/selinux/go-selinux/label/label.go b/vendor/github.com/opencontainers/selinux/go-selinux/label/label.go index fea096c180..07e0f77dc2 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/label/label.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/label/label.go @@ -78,6 +78,9 @@ func ReleaseLabel(label string) error { // Deprecated: use selinux.DupSecOpt var DupSecOpt = selinux.DupSecOpt +// FormatMountLabel returns a string to be used by the mount command. Using +// the SELinux `context` mount option. Changing labels of files on mount +// points with this option can never be changed. // FormatMountLabel returns a string to be used by the mount command. // The format of this string will be used to alter the labeling of the mountpoint. // The string returned is suitable to be used as the options field of the mount command. @@ -85,12 +88,27 @@ var DupSecOpt = selinux.DupSecOpt // the first parameter. Second parameter is the label that you wish to apply // to all content in the mount point. func FormatMountLabel(src, mountLabel string) string { + return FormatMountLabelByType(src, mountLabel, "context") +} + +// FormatMountLabelByType returns a string to be used by the mount command. +// Allow caller to specify the mount options. For example using the SELinux +// `fscontext` mount option would allow certain container processes to change +// labels of files created on the mount points, where as `context` option does +// not. +// FormatMountLabelByType returns a string to be used by the mount command. +// The format of this string will be used to alter the labeling of the mountpoint. +// The string returned is suitable to be used as the options field of the mount command. +// If you need to have additional mount point options, you can pass them in as +// the first parameter. Second parameter is the label that you wish to apply +// to all content in the mount point. +func FormatMountLabelByType(src, mountLabel, contextType string) string { if mountLabel != "" { switch src { case "": - src = fmt.Sprintf("context=%q", mountLabel) + src = fmt.Sprintf("%s=%q", contextType, mountLabel) default: - src = fmt.Sprintf("%s,context=%q", src, mountLabel) + src = fmt.Sprintf("%s,%s=%q", src, contextType, mountLabel) } } return src diff --git a/vendor/github.com/opencontainers/selinux/go-selinux/rchcon.go b/vendor/github.com/opencontainers/selinux/go-selinux/rchcon.go deleted file mode 100644 index 8bff293557..0000000000 --- a/vendor/github.com/opencontainers/selinux/go-selinux/rchcon.go +++ /dev/null @@ -1,34 +0,0 @@ -//go:build linux && go1.16 -// +build linux,go1.16 - -package selinux - -import ( - "errors" - "io/fs" - "os" - - "github.com/opencontainers/selinux/pkg/pwalkdir" -) - -func rchcon(fpath, label string) error { - fastMode := false - // If the current label matches the new label, assume - // other labels are correct. - if cLabel, err := lFileLabel(fpath); err == nil && cLabel == label { - fastMode = true - } - return pwalkdir.Walk(fpath, func(p string, _ fs.DirEntry, _ error) error { - if fastMode { - if cLabel, err := lFileLabel(fpath); err == nil && cLabel == label { - return nil - } - } - e := lSetFileLabel(p, label) - // Walk a file tree can race with removal, so ignore ENOENT. - if errors.Is(e, os.ErrNotExist) { - return nil - } - return e - }) -} diff --git a/vendor/github.com/opencontainers/selinux/go-selinux/rchcon_go115.go b/vendor/github.com/opencontainers/selinux/go-selinux/rchcon_go115.go deleted file mode 100644 index 303cb1890a..0000000000 --- a/vendor/github.com/opencontainers/selinux/go-selinux/rchcon_go115.go +++ /dev/null @@ -1,22 +0,0 @@ -//go:build linux && !go1.16 -// +build linux,!go1.16 - -package selinux - -import ( - "errors" - "os" - - "github.com/opencontainers/selinux/pkg/pwalk" -) - -func rchcon(fpath, label string) error { - return pwalk.Walk(fpath, func(p string, _ os.FileInfo, _ error) error { - e := lSetFileLabel(p, label) - // Walk a file tree can race with removal, so ignore ENOENT. - if errors.Is(e, os.ErrNotExist) { - return nil - } - return e - }) -} diff --git a/vendor/github.com/opencontainers/selinux/go-selinux/selinux.go b/vendor/github.com/opencontainers/selinux/go-selinux/selinux.go index 5a59d151f6..af058b84b1 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/selinux.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/selinux.go @@ -23,8 +23,13 @@ var ( // ErrEmptyPath is returned when an empty path has been specified. ErrEmptyPath = errors.New("empty path") + // ErrInvalidLabel is returned when an invalid label is specified. + ErrInvalidLabel = errors.New("invalid Label") + // InvalidLabel is returned when an invalid label is specified. - InvalidLabel = errors.New("Invalid Label") + // + // Deprecated: use [ErrInvalidLabel]. + InvalidLabel = ErrInvalidLabel // ErrIncomparable is returned two levels are not comparable ErrIncomparable = errors.New("incomparable levels") @@ -144,7 +149,7 @@ func CalculateGlbLub(sourceRange, targetRange string) (string, error) { // of the program is finished to guarantee another goroutine does not migrate to the current // thread before execution is complete. func SetExecLabel(label string) error { - return setExecLabel(label) + return writeCon(attrPath("exec"), label) } // SetTaskLabel sets the SELinux label for the current thread, or an error. @@ -152,21 +157,21 @@ func SetExecLabel(label string) error { // be wrapped in runtime.LockOSThread()/runtime.UnlockOSThread() to guarantee // the current thread does not run in a new mislabeled thread. func SetTaskLabel(label string) error { - return setTaskLabel(label) + return writeCon(attrPath("current"), label) } // SetSocketLabel takes a process label and tells the kernel to assign the // label to the next socket that gets created. Calls to SetSocketLabel // should be wrapped in runtime.LockOSThread()/runtime.UnlockOSThread() until -// the the socket is created to guarantee another goroutine does not migrate +// the socket is created to guarantee another goroutine does not migrate // to the current thread before execution is complete. func SetSocketLabel(label string) error { - return setSocketLabel(label) + return writeCon(attrPath("sockcreate"), label) } // SocketLabel retrieves the current socket label setting func SocketLabel() (string, error) { - return socketLabel() + return readCon(attrPath("sockcreate")) } // PeerLabel retrieves the label of the client on the other side of a socket @@ -185,7 +190,7 @@ func SetKeyLabel(label string) error { // KeyLabel retrieves the current kernel keyring label setting func KeyLabel() (string, error) { - return keyLabel() + return readCon("/proc/self/attr/keycreate") } // Get returns the Context as a string @@ -208,6 +213,11 @@ func ReserveLabel(label string) { reserveLabel(label) } +// MLSEnabled checks if MLS is enabled. +func MLSEnabled() bool { + return isMLSEnabled() +} + // EnforceMode returns the current SELinux mode Enforcing, Permissive, Disabled func EnforceMode() int { return enforceMode() @@ -220,7 +230,7 @@ func SetEnforceMode(mode int) error { } // DefaultEnforceMode returns the systems default SELinux mode Enforcing, -// Permissive or Disabled. Note this is is just the default at boot time. +// Permissive or Disabled. Note this is just the default at boot time. // EnforceMode tells you the systems current mode. func DefaultEnforceMode() int { return defaultEnforceMode() @@ -266,7 +276,7 @@ func CopyLevel(src, dest string) (string, error) { return copyLevel(src, dest) } -// Chcon changes the fpath file object to the SELinux label label. +// Chcon changes the fpath file object to the SELinux label. // If fpath is a directory and recurse is true, then Chcon walks the // directory tree setting the label. // @@ -284,7 +294,7 @@ func DupSecOpt(src string) ([]string, error) { // DisableSecOpt returns a security opt that can be used to disable SELinux // labeling support for future container processes. func DisableSecOpt() []string { - return disableSecOpt() + return []string{"disable"} } // GetDefaultContextWithLevel gets a single context for the specified SELinux user diff --git a/vendor/github.com/opencontainers/selinux/go-selinux/selinux_linux.go b/vendor/github.com/opencontainers/selinux/go-selinux/selinux_linux.go index 4582cc9e0a..f1e95977d3 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/selinux_linux.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/selinux_linux.go @@ -8,16 +8,16 @@ import ( "errors" "fmt" "io" - "io/ioutil" + "io/fs" "math/big" "os" "os/user" - "path" "path/filepath" "strconv" "strings" "sync" + "github.com/opencontainers/selinux/pkg/pwalkdir" "golang.org/x/sys/unix" ) @@ -35,17 +35,17 @@ const ( ) type selinuxState struct { + mcsList map[string]bool + selinuxfs string + selinuxfsOnce sync.Once enabledSet bool enabled bool - selinuxfsOnce sync.Once - selinuxfs string - mcsList map[string]bool sync.Mutex } type level struct { - sens uint cats *big.Int + sens uint } type mlsRange struct { @@ -54,10 +54,10 @@ type mlsRange struct { } type defaultSECtx struct { - user, level, scon string - userRdr, defaultRdr io.Reader - - verifier func(string) error + userRdr io.Reader + verifier func(string) error + defaultRdr io.Reader + user, level, scon string } type levelItem byte @@ -155,7 +155,7 @@ func findSELinuxfs() string { } // check if selinuxfs is available before going the slow path - fs, err := ioutil.ReadFile("/proc/filesystems") + fs, err := os.ReadFile("/proc/filesystems") if err != nil { return "" } @@ -292,7 +292,7 @@ func readCon(fpath string) (string, error) { } func readConFd(in *os.File) (string, error) { - data, err := ioutil.ReadAll(in) + data, err := io.ReadAll(in) if err != nil { return "", err } @@ -305,7 +305,7 @@ func classIndex(class string) (int, error) { permpath := fmt.Sprintf("class/%s/index", class) indexpath := filepath.Join(getSelinuxMountPoint(), permpath) - indexB, err := ioutil.ReadFile(indexpath) + indexB, err := os.ReadFile(indexpath) if err != nil { return -1, err } @@ -391,21 +391,19 @@ func lFileLabel(fpath string) (string, error) { return string(label), nil } -// setFSCreateLabel tells kernel the label to create all file system objects -// created by this task. Setting label="" to return to default. func setFSCreateLabel(label string) error { - return writeAttr("fscreate", label) + return writeCon(attrPath("fscreate"), label) } // fsCreateLabel returns the default label the kernel which the kernel is using // for file system objects created by this task. "" indicates default. func fsCreateLabel() (string, error) { - return readAttr("fscreate") + return readCon(attrPath("fscreate")) } // currentLabel returns the SELinux label of the current process thread, or an error. func currentLabel() (string, error) { - return readAttr("current") + return readCon(attrPath("current")) } // pidLabel returns the SELinux label of the given pid, or an error. @@ -416,7 +414,7 @@ func pidLabel(pid int) (string, error) { // ExecLabel returns the SELinux label that the kernel will use for any programs // that are executed by the current process thread, or an error. func execLabel() (string, error) { - return readAttr("exec") + return readCon(attrPath("exec")) } func writeCon(fpath, val string) error { @@ -462,18 +460,10 @@ func attrPath(attr string) string { }) if haveThreadSelf { - return path.Join(threadSelfPrefix, attr) + return filepath.Join(threadSelfPrefix, attr) } - return path.Join("/proc/self/task/", strconv.Itoa(unix.Gettid()), "/attr/", attr) -} - -func readAttr(attr string) (string, error) { - return readCon(attrPath(attr)) -} - -func writeAttr(attr, val string) error { - return writeCon(attrPath(attr), val) + return filepath.Join("/proc/self/task", strconv.Itoa(unix.Gettid()), "attr", attr) } // canonicalizeContext takes a context string and writes it to the kernel @@ -560,30 +550,30 @@ func (l *level) parseLevel(levelStr string) error { // rangeStrToMLSRange marshals a string representation of a range. func rangeStrToMLSRange(rangeStr string) (*mlsRange, error) { - mlsRange := &mlsRange{} - levelSlice := strings.SplitN(rangeStr, "-", 2) + r := &mlsRange{} + l := strings.SplitN(rangeStr, "-", 2) - switch len(levelSlice) { + switch len(l) { // rangeStr that has a low and a high level, e.g. s4:c0.c1023-s6:c0.c1023 case 2: - mlsRange.high = &level{} - if err := mlsRange.high.parseLevel(levelSlice[1]); err != nil { - return nil, fmt.Errorf("failed to parse high level %q: %w", levelSlice[1], err) + r.high = &level{} + if err := r.high.parseLevel(l[1]); err != nil { + return nil, fmt.Errorf("failed to parse high level %q: %w", l[1], err) } fallthrough // rangeStr that is single level, e.g. s6:c0,c3,c5,c30.c1023 case 1: - mlsRange.low = &level{} - if err := mlsRange.low.parseLevel(levelSlice[0]); err != nil { - return nil, fmt.Errorf("failed to parse low level %q: %w", levelSlice[0], err) + r.low = &level{} + if err := r.low.parseLevel(l[0]); err != nil { + return nil, fmt.Errorf("failed to parse low level %q: %w", l[0], err) } } - if mlsRange.high == nil { - mlsRange.high = mlsRange.low + if r.high == nil { + r.high = r.low } - return mlsRange, nil + return r, nil } // bitsetToStr takes a category bitset and returns it in the @@ -617,17 +607,17 @@ func bitsetToStr(c *big.Int) string { return str } -func (l1 *level) equal(l2 *level) bool { - if l2 == nil || l1 == nil { - return l1 == l2 +func (l *level) equal(l2 *level) bool { + if l2 == nil || l == nil { + return l == l2 } - if l1.sens != l2.sens { + if l2.sens != l.sens { return false } - if l2.cats == nil || l1.cats == nil { - return l2.cats == l1.cats + if l2.cats == nil || l.cats == nil { + return l2.cats == l.cats } - return l1.cats.Cmp(l2.cats) == 0 + return l.cats.Cmp(l2.cats) == 0 } // String returns an mlsRange as a string. @@ -721,36 +711,13 @@ func readWriteCon(fpath string, val string) (string, error) { return readConFd(f) } -// setExecLabel sets the SELinux label that the kernel will use for any programs -// that are executed by the current process thread, or an error. -func setExecLabel(label string) error { - return writeAttr("exec", label) -} - -// setTaskLabel sets the SELinux label for the current thread, or an error. -// This requires the dyntransition permission. -func setTaskLabel(label string) error { - return writeAttr("current", label) -} - -// setSocketLabel takes a process label and tells the kernel to assign the -// label to the next socket that gets created -func setSocketLabel(label string) error { - return writeAttr("sockcreate", label) -} - -// socketLabel retrieves the current socket label setting -func socketLabel() (string, error) { - return readAttr("sockcreate") -} - // peerLabel retrieves the label of the client on the other side of a socket func peerLabel(fd uintptr) (string, error) { - label, err := unix.GetsockoptString(int(fd), unix.SOL_SOCKET, unix.SO_PEERSEC) + l, err := unix.GetsockoptString(int(fd), unix.SOL_SOCKET, unix.SO_PEERSEC) if err != nil { return "", &os.PathError{Op: "getsockopt", Path: "fd " + strconv.Itoa(int(fd)), Err: err} } - return label, nil + return l, nil } // setKeyLabel takes a process label and tells the kernel to assign the @@ -766,15 +733,10 @@ func setKeyLabel(label string) error { return err } -// keyLabel retrieves the current kernel keyring label setting -func keyLabel() (string, error) { - return readCon("/proc/self/attr/keycreate") -} - // get returns the Context as a string func (c Context) get() string { - if level := c["level"]; level != "" { - return c["user"] + ":" + c["role"] + ":" + c["type"] + ":" + level + if l := c["level"]; l != "" { + return c["user"] + ":" + c["role"] + ":" + c["type"] + ":" + l } return c["user"] + ":" + c["role"] + ":" + c["type"] } @@ -786,7 +748,7 @@ func newContext(label string) (Context, error) { if len(label) != 0 { con := strings.SplitN(label, ":", 4) if len(con) < 3 { - return c, InvalidLabel + return c, ErrInvalidLabel } c["user"] = con[0] c["role"] = con[1] @@ -816,14 +778,23 @@ func reserveLabel(label string) { } func selinuxEnforcePath() string { - return path.Join(getSelinuxMountPoint(), "enforce") + return filepath.Join(getSelinuxMountPoint(), "enforce") +} + +// isMLSEnabled checks if MLS is enabled. +func isMLSEnabled() bool { + enabledB, err := os.ReadFile(filepath.Join(getSelinuxMountPoint(), "mls")) + if err != nil { + return false + } + return bytes.Equal(enabledB, []byte{'1'}) } // enforceMode returns the current SELinux mode Enforcing, Permissive, Disabled func enforceMode() int { var enforce int - enforceB, err := ioutil.ReadFile(selinuxEnforcePath()) + enforceB, err := os.ReadFile(selinuxEnforcePath()) if err != nil { return -1 } @@ -837,11 +808,12 @@ func enforceMode() int { // setEnforceMode sets the current SELinux mode Enforcing, Permissive. // Disabled is not valid, since this needs to be set at boot time. func setEnforceMode(mode int) error { - return ioutil.WriteFile(selinuxEnforcePath(), []byte(strconv.Itoa(mode)), 0o644) + //nolint:gosec // ignore G306: permissions to be 0600 or less. + return os.WriteFile(selinuxEnforcePath(), []byte(strconv.Itoa(mode)), 0o644) } // defaultEnforceMode returns the systems default SELinux mode Enforcing, -// Permissive or Disabled. Note this is is just the default at boot time. +// Permissive or Disabled. Note this is just the default at boot time. // EnforceMode tells you the systems current mode. func defaultEnforceMode() int { switch readConfig(selinuxTag) { @@ -941,7 +913,7 @@ func openContextFile() (*os.File, error) { if f, err := os.Open(contextFile); err == nil { return f, nil } - return os.Open(filepath.Join(policyRoot(), "/contexts/lxc_contexts")) + return os.Open(filepath.Join(policyRoot(), "contexts", "lxc_contexts")) } func loadLabels() { @@ -1044,7 +1016,8 @@ func addMcs(processLabel, fileLabel string) (string, string) { // securityCheckContext validates that the SELinux label is understood by the kernel func securityCheckContext(val string) error { - return ioutil.WriteFile(path.Join(getSelinuxMountPoint(), "context"), []byte(val), 0o644) + //nolint:gosec // ignore G306: permissions to be 0600 or less. + return os.WriteFile(filepath.Join(getSelinuxMountPoint(), "context"), []byte(val), 0o644) } // copyLevel returns a label with the MLS/MCS level from src label replaced on @@ -1073,7 +1046,7 @@ func copyLevel(src, dest string) (string, error) { return tcon.Get(), nil } -// chcon changes the fpath file object to the SELinux label label. +// chcon changes the fpath file object to the SELinux label. // If fpath is a directory and recurse is true, then chcon walks the // directory tree setting the label. func chcon(fpath string, label string, recurse bool) error { @@ -1084,7 +1057,7 @@ func chcon(fpath string, label string, recurse bool) error { return nil } - exclude_paths := map[string]bool{ + excludePaths := map[string]bool{ "/": true, "/bin": true, "/boot": true, @@ -1112,19 +1085,19 @@ func chcon(fpath string, label string, recurse bool) error { } if home := os.Getenv("HOME"); home != "" { - exclude_paths[home] = true + excludePaths[home] = true } if sudoUser := os.Getenv("SUDO_USER"); sudoUser != "" { if usr, err := user.Lookup(sudoUser); err == nil { - exclude_paths[usr.HomeDir] = true + excludePaths[usr.HomeDir] = true } } if fpath != "/" { fpath = strings.TrimSuffix(fpath, "/") } - if exclude_paths[fpath] { + if excludePaths[fpath] { return fmt.Errorf("SELinux relabeling of %s is not allowed", fpath) } @@ -1152,6 +1125,28 @@ func chcon(fpath string, label string, recurse bool) error { return rchcon(fpath, label) } +func rchcon(fpath, label string) error { //revive:disable:cognitive-complexity + fastMode := false + // If the current label matches the new label, assume + // other labels are correct. + if cLabel, err := lFileLabel(fpath); err == nil && cLabel == label { + fastMode = true + } + return pwalkdir.Walk(fpath, func(p string, _ fs.DirEntry, _ error) error { + if fastMode { + if cLabel, err := lFileLabel(fpath); err == nil && cLabel == label { + return nil + } + } + err := lSetFileLabel(p, label) + // Walk a file tree can race with removal, so ignore ENOENT. + if errors.Is(err, os.ErrNotExist) { + return nil + } + return err + }) +} + // dupSecOpt takes an SELinux process label and returns security options that // can be used to set the SELinux Type and Level for future container processes. func dupSecOpt(src string) ([]string, error) { @@ -1180,12 +1175,6 @@ func dupSecOpt(src string) ([]string, error) { return dup, nil } -// disableSecOpt returns a security opt that can be used to disable SELinux -// labeling support for future container processes. -func disableSecOpt() []string { - return []string{"disable"} -} - // findUserInContext scans the reader for a valid SELinux context // match that is verified with the verifier. Invalid contexts are // skipped. It returns a matched context or an empty string if no diff --git a/vendor/github.com/opencontainers/selinux/go-selinux/selinux_stub.go b/vendor/github.com/opencontainers/selinux/go-selinux/selinux_stub.go index 20d8880312..bc3fd3b370 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/selinux_stub.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/selinux_stub.go @@ -3,9 +3,20 @@ package selinux -func setDisabled() { +func attrPath(string) string { + return "" } +func readCon(fpath string) (string, error) { + return "", nil +} + +func writeCon(string, string) error { + return nil +} + +func setDisabled() {} + func getEnabled() bool { return false } @@ -62,22 +73,6 @@ func calculateGlbLub(sourceRange, targetRange string) (string, error) { return "", nil } -func setExecLabel(label string) error { - return nil -} - -func setTaskLabel(label string) error { - return nil -} - -func setSocketLabel(label string) error { - return nil -} - -func socketLabel() (string, error) { - return "", nil -} - func peerLabel(fd uintptr) (string, error) { return "", nil } @@ -86,17 +81,12 @@ func setKeyLabel(label string) error { return nil } -func keyLabel() (string, error) { - return "", nil -} - func (c Context) get() string { return "" } func newContext(label string) (Context, error) { - c := make(Context) - return c, nil + return Context{}, nil } func clearLabels() { @@ -105,6 +95,10 @@ func clearLabels() { func reserveLabel(label string) { } +func isMLSEnabled() bool { + return false +} + func enforceMode() int { return Disabled } @@ -152,10 +146,6 @@ func dupSecOpt(src string) ([]string, error) { return nil, nil } -func disableSecOpt() []string { - return []string{"disable"} -} - func getDefaultContextWithLevel(user, level, scon string) (string, error) { return "", nil } diff --git a/vendor/github.com/opencontainers/selinux/pkg/pwalk/README.md b/vendor/github.com/opencontainers/selinux/pkg/pwalk/README.md deleted file mode 100644 index 7e78dce015..0000000000 --- a/vendor/github.com/opencontainers/selinux/pkg/pwalk/README.md +++ /dev/null @@ -1,48 +0,0 @@ -## pwalk: parallel implementation of filepath.Walk - -This is a wrapper for [filepath.Walk](https://pkg.go.dev/path/filepath?tab=doc#Walk) -which may speed it up by calling multiple callback functions (WalkFunc) in parallel, -utilizing goroutines. - -By default, it utilizes 2\*runtime.NumCPU() goroutines for callbacks. -This can be changed by using WalkN function which has the additional -parameter, specifying the number of goroutines (concurrency). - -### pwalk vs pwalkdir - -This package is deprecated in favor of -[pwalkdir](https://pkg.go.dev/github.com/opencontainers/selinux/pkg/pwalkdir), -which is faster, but requires at least Go 1.16. - -### Caveats - -Please note the following limitations of this code: - -* Unlike filepath.Walk, the order of calls is non-deterministic; - -* Only primitive error handling is supported: - - * filepath.SkipDir is not supported; - - * no errors are ever passed to WalkFunc; - - * once any error is returned from any WalkFunc instance, no more new calls - to WalkFunc are made, and the error is returned to the caller of Walk; - - * if more than one walkFunc instance will return an error, only one - of such errors will be propagated and returned by Walk, others - will be silently discarded. - -### Documentation - -For the official documentation, see -https://pkg.go.dev/github.com/opencontainers/selinux/pkg/pwalk?tab=doc - -### Benchmarks - -For a WalkFunc that consists solely of the return statement, this -implementation is about 10% slower than the standard library's -filepath.Walk. - -Otherwise (if a WalkFunc is doing something) this is usually faster, -except when the WalkN(..., 1) is used. diff --git a/vendor/github.com/opencontainers/selinux/pkg/pwalk/pwalk.go b/vendor/github.com/opencontainers/selinux/pkg/pwalk/pwalk.go deleted file mode 100644 index 202c80da59..0000000000 --- a/vendor/github.com/opencontainers/selinux/pkg/pwalk/pwalk.go +++ /dev/null @@ -1,115 +0,0 @@ -package pwalk - -import ( - "fmt" - "os" - "path/filepath" - "runtime" - "sync" -) - -type WalkFunc = filepath.WalkFunc - -// Walk is a wrapper for filepath.Walk which can call multiple walkFn -// in parallel, allowing to handle each item concurrently. A maximum of -// twice the runtime.NumCPU() walkFn will be called at any one time. -// If you want to change the maximum, use WalkN instead. -// -// The order of calls is non-deterministic. -// -// Note that this implementation only supports primitive error handling: -// -// - no errors are ever passed to walkFn; -// -// - once a walkFn returns any error, all further processing stops -// and the error is returned to the caller of Walk; -// -// - filepath.SkipDir is not supported; -// -// - if more than one walkFn instance will return an error, only one -// of such errors will be propagated and returned by Walk, others -// will be silently discarded. -func Walk(root string, walkFn WalkFunc) error { - return WalkN(root, walkFn, runtime.NumCPU()*2) -} - -// WalkN is a wrapper for filepath.Walk which can call multiple walkFn -// in parallel, allowing to handle each item concurrently. A maximum of -// num walkFn will be called at any one time. -// -// Please see Walk documentation for caveats of using this function. -func WalkN(root string, walkFn WalkFunc, num int) error { - // make sure limit is sensible - if num < 1 { - return fmt.Errorf("walk(%q): num must be > 0", root) - } - - files := make(chan *walkArgs, 2*num) - errCh := make(chan error, 1) // get the first error, ignore others - - // Start walking a tree asap - var ( - err error - wg sync.WaitGroup - - rootLen = len(root) - rootEntry *walkArgs - ) - wg.Add(1) - go func() { - err = filepath.Walk(root, func(p string, info os.FileInfo, err error) error { - if err != nil { - close(files) - return err - } - if len(p) == rootLen { - // Root entry is processed separately below. - rootEntry = &walkArgs{path: p, info: &info} - return nil - } - // add a file to the queue unless a callback sent an error - select { - case e := <-errCh: - close(files) - return e - default: - files <- &walkArgs{path: p, info: &info} - return nil - } - }) - if err == nil { - close(files) - } - wg.Done() - }() - - wg.Add(num) - for i := 0; i < num; i++ { - go func() { - for file := range files { - if e := walkFn(file.path, *file.info, nil); e != nil { - select { - case errCh <- e: // sent ok - default: // buffer full - } - } - } - wg.Done() - }() - } - - wg.Wait() - - if err == nil { - err = walkFn(rootEntry.path, *rootEntry.info, nil) - } - - return err -} - -// walkArgs holds the arguments that were passed to the Walk or WalkN -// functions. -type walkArgs struct { - path string - info *os.FileInfo -} diff --git a/vendor/github.com/opencontainers/selinux/pkg/pwalkdir/pwalkdir.go b/vendor/github.com/opencontainers/selinux/pkg/pwalkdir/pwalkdir.go index a5796b2c4f..0f5d9f580d 100644 --- a/vendor/github.com/opencontainers/selinux/pkg/pwalkdir/pwalkdir.go +++ b/vendor/github.com/opencontainers/selinux/pkg/pwalkdir/pwalkdir.go @@ -111,6 +111,6 @@ func WalkN(root string, walkFn fs.WalkDirFunc, num int) error { // walkArgs holds the arguments that were passed to the Walk or WalkN // functions. type walkArgs struct { - path string entry fs.DirEntry + path string } diff --git a/vendor/modules.txt b/vendor/modules.txt index 058309fc16..7510efde8e 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -846,11 +846,10 @@ github.com/opencontainers/runc/libcontainer/userns # github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417 ## explicit github.com/opencontainers/runtime-spec/specs-go -# github.com/opencontainers/selinux v1.10.2 -## explicit; go 1.13 +# github.com/opencontainers/selinux v1.11.0 +## explicit; go 1.19 github.com/opencontainers/selinux/go-selinux github.com/opencontainers/selinux/go-selinux/label -github.com/opencontainers/selinux/pkg/pwalk github.com/opencontainers/selinux/pkg/pwalkdir # github.com/package-url/packageurl-go v0.1.1-0.20220428063043-89078438f170 ## explicit; go 1.17