CNI: bump to 1.0.1 (#297)

* CNI: bump to 1.0.1

This commit bumps the declared version of CNI in the Kilo manifests to
1.0.1. This is possible with no changes to the configuration lists
because our simple configuration is not affected by any of the
deprecations, and there was effectively no change between 0.4.0 and
1.0.0, other than the declaration of a stable API. Similarly, this
commit also bumps the version of the CNI library and the plugins
package.

Bumping to CNI 1.0.0 will help ensure that Kilo stays compatible with
container runtimes in the future.

Signed-off-by: Lucas Servén Marín <lserven@gmail.com>

* vendor: revendor

Signed-off-by: Lucas Servén Marín <lserven@gmail.com>

vendor/github.com/vishvananda/netlink/nl/seg6_linux.go

@@ -99,6 +99,49 @@ func DecodeSEG6Encap(buf []byte) (int, []net.IP, error) {
 	return mode, srh.Segments, nil
 }
 
+func DecodeSEG6Srh(buf []byte) ([]net.IP, error) {
+	native := NativeEndian()
+	srh := IPv6SrHdr{
+		nextHdr:      buf[0],
+		hdrLen:       buf[1],
+		routingType:  buf[2],
+		segmentsLeft: buf[3],
+		firstSegment: buf[4],
+		flags:        buf[5],
+		reserved:     native.Uint16(buf[6:8]),
+	}
+	buf = buf[8:]
+	if len(buf)%16 != 0 {
+		err := fmt.Errorf("DecodeSEG6Srh: error parsing Segment List (buf len: %d)", len(buf))
+		return nil, err
+	}
+	for len(buf) > 0 {
+		srh.Segments = append(srh.Segments, net.IP(buf[:16]))
+		buf = buf[16:]
+	}
+	return srh.Segments, nil
+}
+func EncodeSEG6Srh(segments []net.IP) ([]byte, error) {
+	nsegs := len(segments) // nsegs: number of segments
+	if nsegs == 0 {
+		return nil, errors.New("EncodeSEG6Srh: No Segments")
+	}
+	b := make([]byte, 8, 8+len(segments)*16)
+	native := NativeEndian()
+	b[0] = 0                      // srh.nextHdr (0 when calling netlink)
+	b[1] = uint8(16 * nsegs >> 3) // srh.hdrLen (in 8-octets unit)
+	b[2] = IPV6_SRCRT_TYPE_4      // srh.routingType (assigned by IANA)
+	b[3] = uint8(nsegs - 1)       // srh.segmentsLeft
+	b[4] = uint8(nsegs - 1)       // srh.firstSegment
+	b[5] = 0                      // srh.flags (SR6_FLAG1_HMAC for srh_hmac)
+	// srh.reserved: Defined as "Tag" in draft-ietf-6man-segment-routing-header-07
+	native.PutUint16(b[6:], 0) // srh.reserved
+	for _, netIP := range segments {
+		b = append(b, netIP...) // srh.Segments
+	}
+	return b, nil
+}
+
 // Helper functions
 func SEG6EncapModeString(mode int) string {
 	switch mode {