diff options
Diffstat (limited to 'sd_login/type_machine.go')
-rw-r--r-- | sd_login/type_machine.go | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/sd_login/type_machine.go b/sd_login/type_machine.go new file mode 100644 index 0000000..5892017 --- /dev/null +++ b/sd_login/type_machine.go @@ -0,0 +1,73 @@ +// Copyright (C) 2016 Luke Shumaker <lukeshu@sbcglobal.net> +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package sd_login + +import ( + "strconv" + "strings" + + "golang.org/x/sys/unix" +) + +type Machine string + +// running VMs/containers +func GetMachines() ([]Machine, error) { + strs, err := get_files_in_directory("/run/systemd/machines/") + if err != nil { + return nil, err + } + var machines []Machine + for _, str := range strs { + if strings.HasPrefix(str, "unit:") || !valid_machine_name(str) { + continue + } + machines = append(machines, Machine(str)) + } + return machines, nil +} + +func (m Machine) GetClass() (string, error) { + env, err := parse_env_file("/run/systemd/machines/" + string(m)) + if err != nil { + return "", err + } + class, ok := env["CLASS"] + if !ok { + return "", unix.ENXIO // or EIO? + } + return class, nil +} + +func (m Machine) GetIfIndices() ([]int, error) { + env, err := parse_env_file("/run/systemd/machines/" + string(m)) + if err != nil { + return nil, err + } + netif, ok := env["NETIF"] + if !ok { + return nil, unix.ENXIO // or EIO? + } + + var ifindices []int + for _, word := range strings.FieldsFunc(netif, func(c rune) bool { return strings.ContainsRune(whitespace, c) }) { + ifindex, err := strconv.Atoi(word) + if err != nil { + return nil, err + } + ifindices = append(ifindices, ifindex) + } + return ifindices, nil +} |