diff options
Diffstat (limited to 'vendor/github.com/opencontainers/selinux')
7 files changed, 77 insertions, 65 deletions
diff --git a/vendor/github.com/opencontainers/selinux/go-selinux/doc.go b/vendor/github.com/opencontainers/selinux/go-selinux/doc.go index 0ac7d819e..57a15c9a1 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/doc.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/doc.go @@ -9,6 +9,5 @@ Usage: if selinux.EnforceMode() != selinux.Enforcing { selinux.SetEnforceMode(selinux.Enforcing) } - */ package selinux diff --git a/vendor/github.com/opencontainers/selinux/go-selinux/label/label_linux.go b/vendor/github.com/opencontainers/selinux/go-selinux/label/label_linux.go index 12de0ae5d..f61a56015 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/label/label_linux.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/label/label_linux.go @@ -3,8 +3,6 @@ package label import ( "errors" "fmt" - "os" - "os/user" "strings" "github.com/opencontainers/selinux/go-selinux" @@ -113,50 +111,6 @@ func Relabel(path string, fileLabel string, shared bool) error { return nil } - exclude_paths := map[string]bool{ - "/": true, - "/bin": true, - "/boot": true, - "/dev": true, - "/etc": true, - "/etc/passwd": true, - "/etc/pki": true, - "/etc/shadow": true, - "/home": true, - "/lib": true, - "/lib64": true, - "/media": true, - "/opt": true, - "/proc": true, - "/root": true, - "/run": true, - "/sbin": true, - "/srv": true, - "/sys": true, - "/tmp": true, - "/usr": true, - "/var": true, - "/var/lib": true, - "/var/log": true, - } - - if home := os.Getenv("HOME"); home != "" { - exclude_paths[home] = true - } - - if sudoUser := os.Getenv("SUDO_USER"); sudoUser != "" { - if usr, err := user.Lookup(sudoUser); err == nil { - exclude_paths[usr.HomeDir] = true - } - } - - if path != "/" { - path = strings.TrimSuffix(path, "/") - } - if exclude_paths[path] { - return fmt.Errorf("SELinux relabeling of %s is not allowed", path) - } - if shared { c, err := selinux.NewContext(fileLabel) if err != nil { diff --git a/vendor/github.com/opencontainers/selinux/go-selinux/label/label_stub.go b/vendor/github.com/opencontainers/selinux/go-selinux/label/label_stub.go index 02d206239..f21c80c5a 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/label/label_stub.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/label/label_stub.go @@ -1,3 +1,4 @@ +//go:build !linux // +build !linux package label diff --git a/vendor/github.com/opencontainers/selinux/go-selinux/rchcon.go b/vendor/github.com/opencontainers/selinux/go-selinux/rchcon.go index feb739d32..8bff29355 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/rchcon.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/rchcon.go @@ -1,3 +1,4 @@ +//go:build linux && go1.16 // +build linux,go1.16 package selinux @@ -11,7 +12,18 @@ import ( ) 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) { diff --git a/vendor/github.com/opencontainers/selinux/go-selinux/rchcon_go115.go b/vendor/github.com/opencontainers/selinux/go-selinux/rchcon_go115.go index ecc7abfac..303cb1890 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/rchcon_go115.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/rchcon_go115.go @@ -1,3 +1,4 @@ +//go:build linux && !go1.16 // +build linux,!go1.16 package selinux 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 ee602ab96..4582cc9e0 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/selinux_linux.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/selinux_linux.go @@ -11,6 +11,7 @@ import ( "io/ioutil" "math/big" "os" + "os/user" "path" "path/filepath" "strconv" @@ -1072,21 +1073,6 @@ func copyLevel(src, dest string) (string, error) { return tcon.Get(), nil } -// Prevent users from relabeling system files -func badPrefix(fpath string) error { - if fpath == "" { - return ErrEmptyPath - } - - badPrefixes := []string{"/usr"} - for _, prefix := range badPrefixes { - if strings.HasPrefix(fpath, prefix) { - return fmt.Errorf("relabeling content in %s is not allowed", prefix) - } - } - return nil -} - // chcon changes the fpath file object to the SELinux label label. // If fpath is a directory and recurse is true, then chcon walks the // directory tree setting the label. @@ -1097,12 +1083,70 @@ func chcon(fpath string, label string, recurse bool) error { if label == "" { return nil } - if err := badPrefix(fpath); err != nil { - return err + + exclude_paths := map[string]bool{ + "/": true, + "/bin": true, + "/boot": true, + "/dev": true, + "/etc": true, + "/etc/passwd": true, + "/etc/pki": true, + "/etc/shadow": true, + "/home": true, + "/lib": true, + "/lib64": true, + "/media": true, + "/opt": true, + "/proc": true, + "/root": true, + "/run": true, + "/sbin": true, + "/srv": true, + "/sys": true, + "/tmp": true, + "/usr": true, + "/var": true, + "/var/lib": true, + "/var/log": true, + } + + if home := os.Getenv("HOME"); home != "" { + exclude_paths[home] = true + } + + if sudoUser := os.Getenv("SUDO_USER"); sudoUser != "" { + if usr, err := user.Lookup(sudoUser); err == nil { + exclude_paths[usr.HomeDir] = true + } + } + + if fpath != "/" { + fpath = strings.TrimSuffix(fpath, "/") + } + if exclude_paths[fpath] { + return fmt.Errorf("SELinux relabeling of %s is not allowed", fpath) } if !recurse { - return setFileLabel(fpath, label) + err := lSetFileLabel(fpath, label) + if err != nil { + // Check if file doesn't exist, must have been removed + if errors.Is(err, os.ErrNotExist) { + return nil + } + // Check if current label is correct on disk + flabel, nerr := lFileLabel(fpath) + if nerr == nil && flabel == label { + return nil + } + // Check if file doesn't exist, must have been removed + if errors.Is(nerr, os.ErrNotExist) { + return nil + } + return err + } + return nil } return rchcon(fpath, label) 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 78743b020..20d888031 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/selinux_stub.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/selinux_stub.go @@ -1,3 +1,4 @@ +//go:build !linux // +build !linux package selinux |