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auth, etcdserver: forbid invalid auth management

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If auth is enabled,
1. deleting the user root
2. revoking the role root from the user root
must not be allowed. This commit forbids them.
This commit is contained in:
Hitoshi Mitake 2017-03-17 16:04:56 +09:00
parent 0c87467f69
commit c40b86bcde
3 changed files with 21 additions and 0 deletions
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16
auth/store.go
View File

@ -61,6 +61,7 @@ var (
ErrAuthOldRevision = errors.New("auth: revision in header is old")
ErrInvalidAuthToken = errors.New("auth: invalid auth token")
ErrInvalidAuthOpts = errors.New("auth: invalid auth options")
ErrInvalidAuthMgmt = errors.New("auth: invalid auth management")
// BcryptCost is the algorithm cost / strength for hashing auth passwords
BcryptCost = bcrypt.DefaultCost
@ -352,6 +353,11 @@ func (as *authStore) UserAdd(r *pb.AuthUserAddRequest) (*pb.AuthUserAddResponse,
}
func (as *authStore) UserDelete(r *pb.AuthUserDeleteRequest) (*pb.AuthUserDeleteResponse, error) {
if as.enabled && strings.Compare(r.Name, rootUser) == 0 {
plog.Errorf("the user root must not be deleted")
return nil, ErrInvalidAuthMgmt
}
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
@ -477,6 +483,11 @@ func (as *authStore) UserList(r *pb.AuthUserListRequest) (*pb.AuthUserListRespon
}
func (as *authStore) UserRevokeRole(r *pb.AuthUserRevokeRoleRequest) (*pb.AuthUserRevokeRoleResponse, error) {
if as.enabled && strings.Compare(r.Name, rootUser) == 0 && strings.Compare(r.Role, rootRole) == 0 {
plog.Errorf("the role root must not be revoked from the user root")
return nil, ErrInvalidAuthMgmt
}
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
@ -579,6 +590,11 @@ func (as *authStore) RoleRevokePermission(r *pb.AuthRoleRevokePermissionRequest)
}
func (as *authStore) RoleDelete(r *pb.AuthRoleDeleteRequest) (*pb.AuthRoleDeleteResponse, error) {
if as.enabled && strings.Compare(r.Role, rootRole) == 0 {
plog.Errorf("the role root must not be deleted")
return nil, ErrInvalidAuthMgmt
}
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()

3
etcdserver/api/v3rpc/rpctypes/error.go
View File

@ -56,6 +56,7 @@ var (
ErrGRPCPermissionNotGranted = grpc.Errorf(codes.FailedPrecondition, "etcdserver: permission is not granted to the role")
ErrGRPCAuthNotEnabled = grpc.Errorf(codes.FailedPrecondition, "etcdserver: authentication is not enabled")
ErrGRPCInvalidAuthToken = grpc.Errorf(codes.Unauthenticated, "etcdserver: invalid auth token")
ErrGRPCInvalidAuthMgmt = grpc.Errorf(codes.InvalidArgument, "etcdserver: invalid auth management")
ErrGRPCNoLeader = grpc.Errorf(codes.Unavailable, "etcdserver: no leader")
ErrGRPCNotCapable = grpc.Errorf(codes.Unavailable, "etcdserver: not capable")
@ -102,6 +103,7 @@ var (
grpc.ErrorDesc(ErrGRPCPermissionNotGranted): ErrGRPCPermissionNotGranted,
grpc.ErrorDesc(ErrGRPCAuthNotEnabled): ErrGRPCAuthNotEnabled,
grpc.ErrorDesc(ErrGRPCInvalidAuthToken): ErrGRPCInvalidAuthToken,
grpc.ErrorDesc(ErrGRPCInvalidAuthMgmt): ErrGRPCInvalidAuthMgmt,
grpc.ErrorDesc(ErrGRPCNoLeader): ErrGRPCNoLeader,
grpc.ErrorDesc(ErrGRPCNotCapable): ErrGRPCNotCapable,
@ -148,6 +150,7 @@ var (
ErrPermissionNotGranted = Error(ErrGRPCPermissionNotGranted)
ErrAuthNotEnabled = Error(ErrGRPCAuthNotEnabled)
ErrInvalidAuthToken = Error(ErrGRPCInvalidAuthToken)
ErrInvalidAuthMgmt = Error(ErrGRPCInvalidAuthMgmt)
ErrNoLeader = Error(ErrGRPCNoLeader)
ErrNotCapable = Error(ErrGRPCNotCapable)

2
etcdserver/api/v3rpc/util.go
View File

@ -97,6 +97,8 @@ func togRPCError(err error) error {
return rpctypes.ErrGRPCAuthNotEnabled
case auth.ErrInvalidAuthToken:
return rpctypes.ErrGRPCInvalidAuthToken
case auth.ErrInvalidAuthMgmt:
return rpctypes.ErrGRPCInvalidAuthMgmt
default:
return grpc.Errorf(codes.Unknown, err.Error())
}