Init
This commit is contained in:
parent
2454c5984e
commit
541222e2d0
3
.gitignore
vendored
Normal file
3
.gitignore
vendored
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@ -0,0 +1,3 @@
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gocage
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go.sum
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102
cmd/list.go
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102
cmd/list.go
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@ -0,0 +1,102 @@
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package cmd
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import (
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"os"
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"fmt"
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"log"
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"io/ioutil"
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"gocage/jail"
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"encoding/json"
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"github.com/spf13/viper"
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)
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var gJails []Jail
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func listJails(args []string) {
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for _, d := range viper.GetStringSlice("datastore") {
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listJailsFromDatastore(d)
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}
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for _, j := range (gJails) {
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if j.Running {
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fmt.Printf("%d ; %s ; %s ; %s\n", j.JID, j.Name, j.Config.Ip4_addr, j.Config.Release)
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} else {
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fmt.Printf(" ; %s ; %s ; %s\n", j.Name, j.Config.Ip4_addr, j.Config.Release)
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}
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}
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}
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func listJailsFromDatastore(datastore string) {
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fileInfo, err := os.Stat(datastore)
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if err != nil { log.Fatalln(fmt.Sprintf("Unable to access %s, check path and/or rights", datastore)) }
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if fileInfo.IsDir() == false { log.Fatalln(fmt.Sprintf("%s is not a directory", datastore)) }
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// A datastore have to contain a "jails" directory
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jailsDir := fmt.Sprintf("%s/jails", datastore)
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fileInfo, err = os.Stat(jailsDir)
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if err != nil { log.Fatalln(fmt.Sprintf("Unable to access %s, check path and/or rights", jailsDir)) }
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if fileInfo.IsDir() == false { log.Fatalln(fmt.Sprintf("%s is not a directory", jailsDir)) }
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listJailsFromDirectory(jailsDir)
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}
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func listJailsFromDirectory(dir string) ([]Jail) {
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files, err := ioutil.ReadDir(dir)
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if err != nil { log.Fatalln(fmt.Sprintf("Unable to browse %s, check path and/or rights", dir)) }
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for _, fi := range files {
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if fi.IsDir() == true {
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// 1. Get conf from config.json
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jailConfPath := fmt.Sprintf("%s/%s/%s", dir, fi.Name(), "config.json")
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jailConf, err := getJailConfig(jailConfPath)
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if err != nil { log.Println("ERROR reading jail config for %s", jailConfPath) }
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// 2. Build jail object from config
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jailRootPath := fmt.Sprintf("%s/%s/%s", dir, fi.Name(), "root")
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j := Jail{
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Name: jailConf.Host_hostname,
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Config: jailConf,
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ConfigPath: jailConfPath,
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RootPath: jailRootPath,
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Running: false,
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}
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// 3. Add current running informations
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// FIXME : use rj.host.hostname
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//j.Internal_name = fmt.Sprintf("ioc-%s", j.Name)
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rjails, err := jail.GetJails()
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if err != nil { log.Fatalln("Unable to list running jails") }
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for _, rj := range rjails {
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if rj.Path == j.RootPath {
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j.JID = rj.Jid
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j.Running = true
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j.InternalName = rj.Name
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}
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}
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gJails = append(gJails, j)
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}
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}
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return gJails
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}
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func getJailConfig(jailConfigPath string) (JailConfig, error) {
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content, err := ioutil.ReadFile(jailConfigPath)
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if err != nil { log.Fatalln(fmt.Sprintf("Unable to read %s, check path and/or rights", jailConfigPath)) }
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var jc JailConfig
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err = json.Unmarshal([]byte(content), &jc)
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if err != nil { log.Fatalln(fmt.Sprintf("Error occured during unmarshaling %s: %s", jailConfigPath, err.Error())) }
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//fmt.Printf("Jail Config: %#v\n", jc)
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return jc, err
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}
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95
cmd/root.go
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95
cmd/root.go
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package cmd
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import (
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"os"
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"fmt"
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// "strings"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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)
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const (
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version = "0.001"
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)
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var (
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gConfigFile string
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rootCmd = & cobra.Command{
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Use: "gocage",
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Short: "GoCage is a FreeBSD Jail management tool",
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Long: `GoCage is a jail management tool. It support VNET, host-only, NAT networks. Provides snapshots and cloning.
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It support iocage jails and can coexist with iocage.`,
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Run: func(cmd *cobra.Command, args []string) {
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fmt.Println("Here we are in the Run")
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},
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}
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versionCmd = &cobra.Command{
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Use: "version",
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Short: "Print the version number of GoCage",
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Long: `Let this show you how much fail I had to get this *cough* perfect`,
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Run: func(cmd *cobra.Command, args []string) {
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fmt.Printf("GoCage v.%s\n", version)
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},
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}
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listCmd = &cobra.Command{
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Use: "list",
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Short: "Print jails",
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Long: `Display jails, their IP and OS`,
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Run: func(cmd *cobra.Command, args []string) {
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listJails(args)
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},
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}
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)
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func init() {
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cobra.OnInitialize(initConfig)
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// Global switches
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rootCmd.PersistentFlags().StringVarP(&gConfigFile, "config", "c", "/etc/gocage/gocage.conf", "GoCage configuration file")
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// Command dependant switches
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/* listComputerCmd.PersistentFlags().BoolVarP(&gDisplayAsCSV, "csv-format", "v", false, "Show results in CSV (separator = ';')")
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searchComputerCmd.PersistentFlags().BoolVarP(&gShowAccount, "show-account", "c", false, "Show account when listing computer")
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searchComputerCmd.PersistentFlags().BoolVarP(&gDisplayAsCSV, "csv-format", "v", false, "Show results in CSV (separator = ';')")
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*/
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// Now declare commands
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rootCmd.AddCommand(versionCmd)
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rootCmd.AddCommand(listCmd)
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}
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func initConfig() {
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if gConfigFile == "" {
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fmt.Println("No config file!")
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return
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}
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// fmt.Printf("We are in initConfig(), with config file %s\n", gConfigFile)
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viper.SetConfigFile(gConfigFile)
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if err := viper.ReadInConfig(); err != nil {
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fmt.Printf("ERROR reading config file %s : %s\n", gConfigFile, err.Error())
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return
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}
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// fmt.Println("Using config file:", viper.ConfigFileUsed())
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// fmt.Printf("datastore in config : %s\n", viper.GetStringSlice("datastore"))
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// fmt.Printf("datastore.0 in config : %s\n", viper.GetStringSlice("datastore.0"))
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}
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func Execute() {
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if err := rootCmd.Execute(); err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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}
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154
cmd/struct.go
Normal file
154
cmd/struct.go
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@ -0,0 +1,154 @@
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package cmd
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type Jail struct {
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Name string
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InternalName string
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JID int
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Config JailConfig
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RootPath string
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ConfigPath string
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Running bool
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}
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// iocage struct as stored in config.json
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// CONFIG_VERSION = 27
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type JailConfig struct {
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Config_version string `json:"CONFIG_VERSION"`
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Allow_chflags int `json:"allow_chflags"`
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Allow_mlock int `json:"allow_mlock"`
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Allow_mount int `json:"allow_mount"`
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Allow_mount_devfs int `json:"allow_mount_devfs"`
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Allow_mount_fusefs int `json:"allow_mount_fusefs"`
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Allow_mount_nullfs int `json:"allow_mount_nullfs"`
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Allow_mount_procfs int `json:"allow_mount_procfs"`
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Allow_mount_tmpfs int `json:"allow_mount_tmpfs"`
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Allow_mount_zfs int `json:"allow_mount_zfs"`
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Allow_quotas int `json:"allow_quotas"`
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Allow_raw_sockets int `json:"allow_raw_sockets"`
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Allow_set_hostname int `json:"allow_set_hostname"`
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Allow_socket_af int `json:"allow_socket_af"`
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Allow_sysvipc int `json:"allow_sysvipc"`
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Allow_tun int `json:"allow_tun"`
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Allow_vmm int `json:"allow_vmm"`
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Assign_localhost int `json:"assign_localhost"`
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Available string `json:"available"`
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Basejail int `json:"basejail"`
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Boot int `json:"boot"`
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Bpf int `json:"bpf"`
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Children_max string `json:"children_max"`
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Cloned_release string `json:"cloned_release"`
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Comment string `json:"comment"`
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Compression string `json:"compression"`
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Compressratio string `json:"compressratio"`
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Coredumpsize string `json:"coredumpsize"`
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Count string `json:"count"`
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Cpuset string `json:"cpuset"`
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Cputime string `json:"cputime"`
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Datasize string `json:"datasize"`
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Dedup string `json:"dedup"`
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Defaultrouter string `json:"defaultrouter"`
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Defaultrouter6 string `json:"defaultrouter6"`
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Depends string `json:"depends"`
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Devfs_ruleset string `json:"devfs_ruleset"`
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Dhcp int `json:"dhcp"`
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Enforce_statfs string `json:"enforce_statfs"`
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Exec_clean int `json:"exec_clean"`
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Exec_created string `json:"exec_created"`
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Exec_fib string `json:"exec_fib"`
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Exec_jail_user string `json:"exec_jail_user"`
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Exec_poststart string `json:"exec_poststart"`
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Exec_poststop string `json:"exec_poststop"`
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Exec_prestart string `json:"exec_prestart"`
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Exec_prestop string `json:"exec_prestop"`
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Exec_start string `json:"exec_start"`
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Exec_stop string `json:"exec_stop"`
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Exec_system_jail_user string `json:"exec_system_jail_user"`
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Exec_system_user string `json:"exec_system_user"`
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Exec_timeout string `json:"exec_timeout"`
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Host_domainname string `json:"host_domainname"`
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Host_hostname string `json:"host_hostname"`
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Host_hostuuid string `json:"host_hostuuid"`
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Host_time int `json:"host_time"`
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Hostid string `json:"hostid"`
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Hostid_strict_check int `json:"hostid_strict_check"`
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Interfaces string `json:"interfaces"`
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Ip4 string `json:"ip4"`
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Ip4_addr string `json:"ip4_addr"`
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Ip4_saddrsel string `json:"ip4_saddrsel"`
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Ip6 string `json:"ip6"`
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Ip6_addr string `json:"ip6_addr"`
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Ip6_saddrsel string `json:"ip4_saddrsel"`
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Ip_hostname int `json:"ip_hostname"`
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Jail_zfs int `json:"jail_zfs"`
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Jail_zfs_dataset string `json:"jail_zfs_dataset"`
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Jail_zfs_mountpoint string `json:"jail_zfs_mountpoint"`
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Last_started string `json:"last_started"`
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Localhost_ip string `json:"localhost_ip"`
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Login_flags string `json:"login_flags"`
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Mac_prefix string `json:"mac_prefix"`
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Maxproc string `json:"maxproc"`
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Memorylocked string `json:"memorylocked"`
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Memoryuse string `json:"memoryuse"`
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Min_dyn_devfs_ruleset string `json:"min_dyn_devfs_ruleset"`
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Mount_devfs int `json:"mount_devfs"`
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Mount_fdescfs int `json:"mount_fdescfs"`
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Mount_linprocfs int `json:"mount_linprocfs"`
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Mount_procfs int `json:"mount_procfs"`
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Mountpoint string `json:"mountpoint"`
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Msgqqueued string `json:"msgqqueued"`
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Msgqsize string `json:"msgqsize"`
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Nat int `json:"nat"`
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Nat_backend string `json:"nat_backend"`
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Nat_forwards string `json:"nat_forwards"`
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Nat_interface string `json:"nat_interface"`
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Nat_prefix string `json:"nat_prefix"`
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Nmsgq string `json:"nmsgq"`
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Notes string `json:"notes"`
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Nsem string `json:"nsem"`
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Nsemop string `json:"nsemop"`
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Nshm string `json:"nshm"`
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Nthr string `json:"nthr"`
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Openfiles string `json:"openfiles"`
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Origin string `json:"origin"`
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Owner string `json:"owner"`
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Pcpu string `json:"pcpu"`
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Plugin_name string `json:"plugin_name"`
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Plugin_repository string `json:"plugin_repository"`
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Priority string `json:"priority"`
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Pseudoterminals string `json:"pseudoterminals"`
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Quota string `json:"quota"`
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Readbps string `json:"readbps"`
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Readiops string `json:"readiops"`
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Release string `json:"release"`
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Reservation string `json:"reservation"`
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Resolver string `json:"resolver"`
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Rlimits string `json:"rlimits"`
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Rtsold int `json:"rtsold"`
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Securelevel string `json:"securelevel"`
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Shmsize string `json:"shmsize"`
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Stacksize string `json:"stacksize"`
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Stop_timeout string `json:"stop_timeout"`
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Swapuse string `json:"swapuse"`
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Sync_state string `json:"sync_state"`
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Sync_target string `json:"sync_target"`
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Sync_tgt_zpool string `json:"sync_tgt_zpool"`
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Sysvmsg string `json:"sysvmsg"`
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Sysvsem string `json:"sysvsem"`
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Sysvshm string `json:"sysvshm"`
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Template int `json:"template"`
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// Go don't like a variable named "type" (And i dont care about finding a cleaner way)
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Jailtype string `json:"type"`
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Used string `json:"used"`
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Vmemoryuse string `json:"vmemoryuse"`
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Vnet int `json:"vnet"`
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Vnet0_mac string `json:"vnet0_mac"`
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Vnet1_mac string `json:"vnet1_mac"`
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Vnet2_mac string `json:"vnet2_mac"`
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Vnet3_mac string `json:"vnet3_mac"`
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Vnet_default_interface string `json:"vnet_default_interface"`
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Vnet_interfaces string `json:"vnet_interfaces"`
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Wallclock string `json:"wallclock"`
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Writebps string `json:"writebps"`
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Writeiops string `json:"writeiops"`
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}
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26
go.mod
Normal file
26
go.mod
Normal file
@ -0,0 +1,26 @@
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module gocage
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go 1.17
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require (
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github.com/spf13/cobra v1.2.1
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github.com/spf13/viper v1.9.0
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)
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require (
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github.com/fsnotify/fsnotify v1.5.1 // indirect
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github.com/hashicorp/hcl v1.0.0 // indirect
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github.com/inconshreveable/mousetrap v1.0.0 // indirect
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github.com/magiconair/properties v1.8.5 // indirect
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github.com/mitchellh/mapstructure v1.4.2 // indirect
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github.com/pelletier/go-toml v1.9.4 // indirect
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github.com/spf13/afero v1.6.0 // indirect
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github.com/spf13/cast v1.4.1 // indirect
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github.com/spf13/jwalterweatherman v1.1.0 // indirect
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github.com/spf13/pflag v1.0.5 // indirect
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github.com/subosito/gotenv v1.2.0 // indirect
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golang.org/x/sys v0.0.0-20210823070655-63515b42dcdf // indirect
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golang.org/x/text v0.3.6 // indirect
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gopkg.in/ini.v1 v1.63.2 // indirect
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gopkg.in/yaml.v2 v2.4.0 // indirect
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)
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98
jail/main.go
Normal file
98
jail/main.go
Normal file
@ -0,0 +1,98 @@
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// Copyright 2021, johan@nosd.in
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// +build freebsd
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//
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// Use libjail.so to get/set jail params
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package jail
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/*
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#cgo CFLAGS: -I /usr/lib
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#cgo LDFLAGS: -L. -ljail -lc
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#include <stdlib.h>
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#include <jail.h>
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#include <utmpx.h>
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#include <pwd.h>
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*/
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import "C"
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import (
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"strconv"
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// "syscall"
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"unsafe"
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)
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||||
|
||||
|
||||
type Jail struct {
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Name string
|
||||
Jid int
|
||||
Path string
|
||||
}
|
||||
|
||||
|
||||
// We can not use jail_getv ou jail_setv because they are variadic C functions (would need a C wrapper)
|
||||
func GetJails() ([]Jail, error) {
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var jls []Jail
|
||||
var jl Jail
|
||||
var err error
|
||||
|
||||
// Make "params" a list of 4 jails parameters
|
||||
params := make([]C.struct_jailparam, 4)
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||||
|
||||
// initialize parameter names
|
||||
csname := C.CString("name")
|
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defer C.free(unsafe.Pointer(csname))
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csjid := C.CString("jid")
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||||
defer C.free(unsafe.Pointer(csjid))
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cspath := C.CString("path")
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defer C.free(unsafe.Pointer(cspath))
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||||
cslastjid := C.CString("lastjid")
|
||||
defer C.free(unsafe.Pointer(cslastjid))
|
||||
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||||
// initialize params struct with parameter names
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||||
C.jailparam_init(¶ms[0], csname)
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C.jailparam_init(¶ms[1], csjid)
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C.jailparam_init(¶ms[2], cspath)
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||||
|
||||
// The key to retrieve jail. lastjid = 0 returns first jail and its jid as jailparam_get return value
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C.jailparam_init(¶ms[3], cslastjid)
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||||
|
||||
lastjailid := 0
|
||||
cslastjidval := C.CString(strconv.Itoa(lastjailid))
|
||||
defer C.free(unsafe.Pointer(cslastjidval))
|
||||
|
||||
C.jailparam_import(¶ms[3], cslastjidval)
|
||||
|
||||
// loop on existing jails
|
||||
for lastjailid >= 0 {
|
||||
// get parameter values
|
||||
lastjailid = int(C.jailparam_get(¶ms[0], 4, 0))
|
||||
if lastjailid > 0 {
|
||||
nametmp := C.jailparam_export(¶ms[0])
|
||||
jl.Name = C.GoString(nametmp)
|
||||
// Memory mgmt : Non gere par Go
|
||||
C.free(unsafe.Pointer(nametmp))
|
||||
|
||||
jidtmp := C.jailparam_export(¶ms[1])
|
||||
jl.Jid, _ = strconv.Atoi(C.GoString(jidtmp))
|
||||
// Memory mgmt : Non gere par Go
|
||||
C.free(unsafe.Pointer(jidtmp))
|
||||
|
||||
pathtmp := C.jailparam_export(¶ms[2])
|
||||
jl.Path = C.GoString(pathtmp)
|
||||
// Memory mgmt : Non gere par Go
|
||||
C.free(unsafe.Pointer(pathtmp))
|
||||
|
||||
jls = append(jls, jl)
|
||||
//log.Debug("Got jid " + strconv.Itoa(jl.jid) + " with name " + jl.name)
|
||||
|
||||
// Prepare next loop iteration
|
||||
cslastjidval := C.CString(strconv.Itoa(lastjailid))
|
||||
defer C.free(unsafe.Pointer(cslastjidval))
|
||||
C.jailparam_import(¶ms[3], cslastjidval)
|
||||
}
|
||||
}
|
||||
|
||||
// Free 4 items of params list
|
||||
C.jailparam_free(¶ms[0], 4)
|
||||
|
||||
return jls, err
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user