github.com/coreos/mantle@v0.13.0/update/metadata/update_metadata.go (about)

     1  // Copyright 2016 CoreOS, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  //go:generate protoc --go_out=import_path=$GOPACKAGE:. update_metadata.proto
    16  
    17  package metadata
    18  
    19  // Magic is the first four bytes of any update payload.
    20  const Magic = "CrAU"
    21  
    22  // Major version of the payload format.
    23  const Version = 1
    24  
    25  // DeltaArchiveHeader begins the payload file.
    26  type DeltaArchiveHeader struct {
    27  	Magic        [4]byte // "CrAU"
    28  	Version      uint64  // 1
    29  	ManifestSize uint64
    30  }