github.com/u-root/u-root@v7.0.1-0.20200915234505-ad7babab0a8e+incompatible/tools/stconfig/stconfig.go (about)

     1  // Copyright 2018 the u-root Authors. All rights reserved
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package main
     6  
     7  // https://xkcd.com/927/
     8  
     9  // stconfig is a configuration tool to create and manage artifacts for
    10  // System Transparency Boot. Artifacts are ment to be uploaded to a
    11  // remote provisioning server.
    12  
    13  import (
    14  	"log"
    15  	"os"
    16  
    17  	kingpin "gopkg.in/alecthomas/kingpin.v2"
    18  )
    19  
    20  const (
    21  	// Author is the author
    22  	Author = "Philipp Deppenwiese, Jens Drenhaus"
    23  	// HelpText is the command line help
    24  	HelpText = "stconfig can be used for managing System Transparency boot configurations"
    25  )
    26  
    27  var goversion string
    28  
    29  var (
    30  	create = kingpin.Command("create", "Create a boot ball from stconfig.json")
    31  	sign   = kingpin.Command("sign", "Sign the binary inside the provided stboot.ball and add the signatures and certificates")
    32  	unpack = kingpin.Command("unpack", "Unpack boot ball  file into directory")
    33  
    34  	createConfigFile = create.Arg("config", "Path to the manifest file in JSON format").Required().String()
    35  
    36  	signInFile      = sign.Arg("bootball", "Archive created by 'stconfig create'").Required().String()
    37  	signPrivKeyFile = sign.Arg("privkey", "Private key for signing").Required().String()
    38  	signCertFile    = sign.Arg("certificate", "Certificate to veryfy the signature").Required().String()
    39  
    40  	unpackInFile = unpack.Arg("bootball", "Archive containing the boot files").Required().String()
    41  )
    42  
    43  func main() {
    44  	kingpin.UsageTemplate(kingpin.CompactUsageTemplate).Version(goversion).Author(Author)
    45  	kingpin.CommandLine.Help = HelpText
    46  
    47  	switch kingpin.Parse() {
    48  	case create.FullCommand():
    49  		if _, err := os.Stat(*createConfigFile); os.IsNotExist(err) {
    50  			log.Fatalf("%s does not exist: %v", *createConfigFile, err)
    51  		}
    52  		if err := packBootBall(*createConfigFile); err != nil {
    53  			log.Fatalln(err.Error())
    54  		}
    55  	case sign.FullCommand():
    56  		if _, err := os.Stat(*signInFile); os.IsNotExist(err) {
    57  			log.Fatalf("%s does not exist: %v", *signInFile, err)
    58  		}
    59  		if _, err := os.Stat(*signPrivKeyFile); os.IsNotExist(err) {
    60  			log.Fatalf("%s does not exist: %v", *signPrivKeyFile, err)
    61  		}
    62  		if _, err := os.Stat(*signCertFile); os.IsNotExist(err) {
    63  			log.Fatalf("%s does not exist: %v", *signCertFile, err)
    64  		}
    65  		if err := addSignatureToBootBall(*signInFile, *signPrivKeyFile, *signCertFile); err != nil {
    66  			log.Fatalln(err.Error())
    67  		}
    68  	case unpack.FullCommand():
    69  		if _, err := os.Stat(*unpackInFile); os.IsNotExist(err) {
    70  			log.Fatalf("%s does not exist: %v", *signInFile, err)
    71  		}
    72  		if err := unpackBootBall(*unpackInFile); err != nil {
    73  			log.Fatalln(err.Error())
    74  		}
    75  	default:
    76  		log.Fatal("Command not found")
    77  	}
    78  }