diff options
Diffstat (limited to 'vendor/github.com/opencontainers/selinux/go-selinux')
3 files changed, 38 insertions, 36 deletions
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 14e1e38c2..12de0ae5d 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 @@ -103,9 +103,11 @@ func SetFileCreateLabel(fileLabel string) error { return selinux.SetFSCreateLabel(fileLabel) } -// Relabel changes the label of path to the filelabel string. +// Relabel changes the label of path and all the entries beneath the path. // It changes the MCS label to s0 if shared is true. // This will allow all containers to share the content. +// +// The path itself is guaranteed to be relabeled last. func Relabel(path string, fileLabel string, shared bool) error { if !selinux.GetEnabled() || fileLabel == "" { return nil diff --git a/vendor/github.com/opencontainers/selinux/go-selinux/selinux.go b/vendor/github.com/opencontainers/selinux/go-selinux/selinux.go index 0eedcaa78..cad467507 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/selinux.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/selinux.go @@ -255,6 +255,8 @@ func CopyLevel(src, dest string) (string, error) { // 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. +// +// The fpath itself is guaranteed to be relabeled last. func Chcon(fpath string, label string, recurse bool) error { return chcon(fpath, label, recurse) } 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 295b2bc4e..b045843ad 100644 --- a/vendor/github.com/opencontainers/selinux/go-selinux/selinux_linux.go +++ b/vendor/github.com/opencontainers/selinux/go-selinux/selinux_linux.go @@ -9,6 +9,7 @@ import ( "fmt" "io" "io/ioutil" + "math/big" "os" "path" "path/filepath" @@ -16,7 +17,6 @@ import ( "strings" "sync" - "github.com/bits-and-blooms/bitset" "golang.org/x/sys/unix" ) @@ -44,7 +44,7 @@ type selinuxState struct { type level struct { sens uint - cats *bitset.BitSet + cats *big.Int } type mlsRange struct { @@ -455,8 +455,8 @@ func computeCreateContext(source string, target string, class string) (string, e } // catsToBitset stores categories in a bitset. -func catsToBitset(cats string) (*bitset.BitSet, error) { - bitset := &bitset.BitSet{} +func catsToBitset(cats string) (*big.Int, error) { + bitset := new(big.Int) catlist := strings.Split(cats, ",") for _, r := range catlist { @@ -471,14 +471,14 @@ func catsToBitset(cats string) (*bitset.BitSet, error) { return nil, err } for i := catstart; i <= catend; i++ { - bitset.Set(i) + bitset.SetBit(bitset, int(i), 1) } } else { cat, err := parseLevelItem(ranges[0], category) if err != nil { return nil, err } - bitset.Set(cat) + bitset.SetBit(bitset, int(cat), 1) } } @@ -548,37 +548,30 @@ func rangeStrToMLSRange(rangeStr string) (*mlsRange, error) { // bitsetToStr takes a category bitset and returns it in the // canonical selinux syntax -func bitsetToStr(c *bitset.BitSet) string { +func bitsetToStr(c *big.Int) string { var str string - i, e := c.NextSet(0) - len := 0 - for e { - if len == 0 { + + length := 0 + for i := int(c.TrailingZeroBits()); i < c.BitLen(); i++ { + if c.Bit(i) == 0 { + continue + } + if length == 0 { if str != "" { str += "," } - str += "c" + strconv.Itoa(int(i)) - } - - next, e := c.NextSet(i + 1) - if e { - // consecutive cats - if next == i+1 { - len++ - i = next - continue - } + str += "c" + strconv.Itoa(i) } - if len == 1 { - str += ",c" + strconv.Itoa(int(i)) - } else if len > 1 { - str += ".c" + strconv.Itoa(int(i)) + if c.Bit(i+1) == 1 { + length++ + continue } - if !e { - break + if length == 1 { + str += ",c" + strconv.Itoa(i) + } else if length > 1 { + str += ".c" + strconv.Itoa(i) } - len = 0 - i = next + length = 0 } return str @@ -591,13 +584,16 @@ func (l1 *level) equal(l2 *level) bool { if l1.sens != l2.sens { return false } - return l1.cats.Equal(l2.cats) + if l2.cats == nil || l1.cats == nil { + return l2.cats == l1.cats + } + return l1.cats.Cmp(l2.cats) == 0 } // String returns an mlsRange as a string. func (m mlsRange) String() string { low := "s" + strconv.Itoa(int(m.low.sens)) - if m.low.cats != nil && m.low.cats.Count() > 0 { + if m.low.cats != nil && m.low.cats.BitLen() > 0 { low += ":" + bitsetToStr(m.low.cats) } @@ -606,7 +602,7 @@ func (m mlsRange) String() string { } high := "s" + strconv.Itoa(int(m.high.sens)) - if m.high.cats != nil && m.high.cats.Count() > 0 { + if m.high.cats != nil && m.high.cats.BitLen() > 0 { high += ":" + bitsetToStr(m.high.cats) } @@ -656,10 +652,12 @@ func calculateGlbLub(sourceRange, targetRange string) (string, error) { /* find the intersecting categories */ if s.low.cats != nil && t.low.cats != nil { - outrange.low.cats = s.low.cats.Intersection(t.low.cats) + outrange.low.cats = new(big.Int) + outrange.low.cats.And(s.low.cats, t.low.cats) } if s.high.cats != nil && t.high.cats != nil { - outrange.high.cats = s.high.cats.Intersection(t.high.cats) + outrange.high.cats = new(big.Int) + outrange.high.cats.And(s.high.cats, t.high.cats) } return outrange.String(), nil |