func main() {
caAddr := flag.String("caAddr", "localhost:8124", "The address of the CA for setting up a certificate signed by the policy key")
hostcfg := flag.String("hostconfig", "tao.config", "path to host tao configuration")
serverHost := flag.String("host", "localhost", "address for client/server")
serverPort := flag.String("port", "8129", "port for client/server")
rollbackServerPath := flag.String("rollbackserver_files", "rollbackserver_files", "rollbackserver directory")
country := flag.String("country", "US", "The country for the fileclient certificate")
org := flag.String("organization", "Google", "The organization for the fileclient certificate")
flag.Parse()
serverAddr := net.JoinHostPort(*serverHost, *serverPort)
hostDomain, err := tao.LoadDomain(*hostcfg, nil)
if err != nil {
log.Fatalln("rollbackserver: can't load domain:", err)
}
var policyCert []byte
if hostDomain.Keys.Cert != nil {
policyCert = hostDomain.Keys.Cert.Raw
}
if policyCert == nil {
log.Fatalln("rollbackserver: can't retrieve policy cert")
}
parentTao := tao.Parent()
if err := hostDomain.ExtendTaoName(parentTao); err != nil {
log.Fatalln("fileserver: can't extend the Tao with the policy key")
}
e := auth.PrinExt{Name: "rollbackserver_version_1"}
if err = parentTao.ExtendTaoName(auth.SubPrin{e}); err != nil {
log.Fatalln("rollbackserver: can't extend name")
}
taoName, err := parentTao.GetTaoName()
if err != nil {
return
}
// Create or read the keys for rollbackserver.
rbKeys, err := tao.NewOnDiskTaoSealedKeys(tao.Signing|tao.Crypting, parentTao, *rollbackServerPath, tao.SealPolicyDefault)
if err != nil {
log.Fatalln("rollbackserver: couldn't set up the Tao-sealed keys:", err)
}
// Set up a temporary cert for communication with keyNegoServer.
rbKeys.Cert, err = rbKeys.SigningKey.CreateSelfSignedX509(tao.NewX509Name(&tao.X509Details{
Country: proto.String(*country),
Organization: proto.String(*org),
CommonName: proto.String(taoName.String()),
}))
if err != nil {
log.Fatalln("rollbackserver: couldn't create a self-signed cert for rollbackserver keys:", err)
}
// Contact keyNegoServer for the certificate.
if err := fileproxy.EstablishCert("tcp", *caAddr, rbKeys, hostDomain.Keys.VerifyingKey); err != nil {
log.Fatalf("rollbackserver: couldn't establish a cert signed by the policy key: %s", err)
}
// The symmetric keys aren't used by the rollback server.
progPolicy := fileproxy.NewProgramPolicy(policyCert, taoName.String(), rbKeys, nil, rbKeys.Cert.Raw)
m := fileproxy.NewRollbackMaster(taoName.String())
if err := serve(serverAddr, taoName.String(), policyCert, rbKeys, progPolicy, m); err != nil {
log.Fatalf("rollbackserver: server error: %s\n", err)
}
log.Println("rollbackserver: done")
}
func main() {
caAddr := flag.String("caAddr", "localhost:8124", "The address of the CA for setting up a certificate signed by the policy key")
hostcfg := flag.String("hostconfig", "tao.config", "path to host tao configuration")
serverHost := flag.String("host", "localhost", "address for client/server")
serverPort := flag.String("port", "8123", "port for client/server")
fileServerPath := flag.String("fileserver_files", "fileserver_files/", "fileserver directory")
fileServerFilePath := flag.String("stored_files", "fileserver_files/stored_files/", "fileserver directory")
country := flag.String("country", "US", "The country for the fileclient certificate")
org := flag.String("organization", "Google", "The organization for the fileclient certificate")
flag.Parse()
serverAddr := net.JoinHostPort(*serverHost, *serverPort)
hostDomain, err := tao.LoadDomain(*hostcfg, nil)
if err != nil {
log.Fatalln("fileserver: can't LoadDomain")
}
var policyCert []byte
if hostDomain.Keys.Cert != nil {
policyCert = hostDomain.Keys.Cert.Raw
}
if policyCert == nil {
log.Fatalln("fileserver: can't retrieve policy cert")
}
parentTao := tao.Parent()
if err := hostDomain.ExtendTaoName(parentTao); err != nil {
log.Fatalln("fileserver: can't extend the Tao with the policy key")
}
e := auth.PrinExt{Name: "fileserver_version_1"}
if err = parentTao.ExtendTaoName(auth.SubPrin{e}); err != nil {
log.Fatalln("fileserver: couldn't extend the Tao name")
}
taoName, err := parentTao.GetTaoName()
if err != nil {
log.Fatalln("fileserver: couldn't get tao name")
}
// Create or read the keys for fileclient.
fsKeys, err := tao.NewOnDiskTaoSealedKeys(tao.Signing|tao.Crypting, parentTao, *fileServerPath, tao.SealPolicyDefault)
if err != nil {
log.Fatalln("fileserver: couldn't set up the Tao-sealed keys:", err)
}
// Set up a temporary cert for communication with keyNegoServer.
fsKeys.Cert, err = fsKeys.SigningKey.CreateSelfSignedX509(tao.NewX509Name(&tao.X509Details{
Country: proto.String(*country),
Organization: proto.String(*org),
CommonName: proto.String(taoName.String()),
}))
if err != nil {
log.Fatalln("fileserver: couldn't create a self-signed cert for fileclient keys:", err)
}
// Contact keyNegoServer for the certificate.
if err := fileproxy.EstablishCert("tcp", *caAddr, fsKeys, hostDomain.Keys.VerifyingKey); err != nil {
log.Fatalf("fileserver: couldn't establish a cert signed by the policy key: %s", err)
}
symKeysPath := path.Join(*fileServerPath, "sealedEncKeys")
symKeys, err := fsKeys.NewSecret(symKeysPath, fileproxy.SymmetricKeySize)
if err != nil {
log.Fatalln("fileserver: couldn't get the file encryption keys")
}
tao.ZeroBytes(symKeys)
progPolicy := fileproxy.NewProgramPolicy(policyCert, taoName.String(), fsKeys, symKeys, fsKeys.Cert.Raw)
// Set up the file storage path if it doesn't exist.
if _, err := os.Stat(*fileServerFilePath); err != nil {
if err := os.MkdirAll(*fileServerFilePath, 0700); err != nil {
log.Fatalln("fileserver: couldn't create a file storage directory:", err)
}
}
if err := serve(serverAddr, *fileServerFilePath, policyCert, fsKeys, progPolicy); err != nil {
log.Fatalln("fileserver: couldn't serve connections:", err)
}
log.Printf("fileserver: done\n")
}