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Image encryption/decryption support in skopeo

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Signed-off-by: Harshal Patil <harshal.patil@in.ibm.com>
Signed-off-by: Brandon Lum <lumjjb@gmail.com>
This commit is contained in:
Harshal Patil
2019-09-23 14:17:42 +05:30
parent 912b7e1e09
commit 39ff039b3b
176 changed files with 21673 additions and 3828 deletions
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21
vendor/github.com/klauspost/compress/zstd/framedec.go generated vendored
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@@ -49,7 +49,8 @@ type frameDec struct {
const (
// The minimum Window_Size is 1 KB.
minWindowSize = 1 << 10
MinWindowSize = 1 << 10
MaxWindowSize = 1 << 30
)
var (
@@ -60,7 +61,7 @@ var (
func newFrameDec(o decoderOptions) *frameDec {
d := frameDec{
o: o,
maxWindowSize: 1 << 30,
maxWindowSize: MaxWindowSize,
}
if d.maxWindowSize > o.maxDecodedSize {
d.maxWindowSize = o.maxDecodedSize
@@ -193,14 +194,14 @@ func (d *frameDec) reset(br byteBuffer) error {
// When FCS_Field_Size is 2, the offset of 256 is added.
d.FrameContentSize = uint64(b[0]) | (uint64(b[1]) << 8) + 256
case 4:
d.FrameContentSize = uint64(b[0]) | (uint64(b[1]) << 8) | (uint64(b[2]) << 16) | (uint64(b[3] << 24))
d.FrameContentSize = uint64(b[0]) | (uint64(b[1]) << 8) | (uint64(b[2]) << 16) | (uint64(b[3]) << 24)
case 8:
d1 := uint32(b[0]) | (uint32(b[1]) << 8) | (uint32(b[2]) << 16) | (uint32(b[3]) << 24)
d2 := uint32(b[4]) | (uint32(b[5]) << 8) | (uint32(b[6]) << 16) | (uint32(b[7]) << 24)
d.FrameContentSize = uint64(d1) | (uint64(d2) << 32)
}
if debug {
println("field size bits:", v, "fcsSize:", fcsSize, "FrameContentSize:", d.FrameContentSize, hex.EncodeToString(b[:fcsSize]))
println("field size bits:", v, "fcsSize:", fcsSize, "FrameContentSize:", d.FrameContentSize, hex.EncodeToString(b[:fcsSize]), "singleseg:", d.SingleSegment, "window:", d.WindowSize)
}
}
// Move this to shared.
@@ -215,8 +216,8 @@ func (d *frameDec) reset(br byteBuffer) error {
if d.WindowSize == 0 && d.SingleSegment {
// We may not need window in this case.
d.WindowSize = d.FrameContentSize
if d.WindowSize < minWindowSize {
d.WindowSize = minWindowSize
if d.WindowSize < MinWindowSize {
d.WindowSize = MinWindowSize
}
}
@@ -225,7 +226,7 @@ func (d *frameDec) reset(br byteBuffer) error {
return ErrWindowSizeExceeded
}
// The minimum Window_Size is 1 KB.
if d.WindowSize < minWindowSize {
if d.WindowSize < MinWindowSize {
println("got window size: ", d.WindowSize)
return ErrWindowSizeTooSmall
}
@@ -309,7 +310,9 @@ func (d *frameDec) checkCRC() error {
}
return ErrCRCMismatch
}
println("CRC ok")
if debug {
println("CRC ok", tmp[:])
}
return nil
}
@@ -411,6 +414,7 @@ func (d *frameDec) startDecoder(output chan decodeOutput) {
}
written += int64(len(r.b))
if d.SingleSegment && uint64(written) > d.FrameContentSize {
println("runDecoder: single segment and", uint64(written), ">", d.FrameContentSize)
r.err = ErrFrameSizeExceeded
output <- r
return
@@ -461,6 +465,7 @@ func (d *frameDec) runDecoder(dst []byte, dec *blockDec) ([]byte, error) {
break
}
if d.SingleSegment && uint64(len(d.history.b)) > d.o.maxDecodedSize {
println("runDecoder: single segment and", uint64(len(d.history.b)), ">", d.o.maxDecodedSize)
err = ErrFrameSizeExceeded
break
}