func (d *daemonState) handleNetworkReconfigure() {
brIP, brNet, err := network.FindEmptyRange()
if err != nil {
d.log.Error("Unable to find new network range: %v", err)
return
}
if brIP.Equal(d.network.Gateway) {
d.log.Notice("Range %s is still available, not reconfiguring %s.", d.network.GatewayNet.String(), brNet.String())
return
}
d.log.Notice("Network has changed, reconfiguring %s to %s", d.network.GatewayNet.String(), brNet.String())
newhtn, err := d.network.BridgeReconfigure(d.log)
if err != nil {
d.log.Error("Unable to reconfigure bridge network: %v", err)
return
}
d.network = newhtn
for _, sbox := range d.sandboxes {
if sbox.profile.Networking.Nettype == network.TYPE_BRIDGE {
d.log.Debug("Reconfiguring network for sandbox `%s` (%d).", sbox.profile.Name, sbox.init.Process.Pid)
sbox.network, err = network.PrepareSandboxNetwork(sbox.network, d.network, d.log)
if err != nil {
d.log.Error("Unable to prepare reconfigure of sandbox `%s` networking: %v", sbox.profile.Name, err)
continue
}
if err := network.NetReconfigure(sbox.network, d.network, sbox.init.Process.Pid, d.log); err != nil {
d.log.Error("Unable to reconfigure sandbox `%s` networking: %v", sbox.profile.Name, err)
continue
}
}
}
return
}
func (d *daemonState) launch(p *oz.Profile, msg *LaunchMsg, rawEnv []string, uid, gid uint32, log *logging.Logger) (*Sandbox, error) {
/*
u, err := user.LookupId(fmt.Sprintf("%d", uid))
if err != nil {
return nil, fmt.Errorf("failed to lookup user for uid=%d: %v", uid, err)
}
fs := fs.NewFromProfile(p, u, d.config.SandboxPath, d.config.UseFullDev, d.log)
if err := fs.Setup(d.config.ProfileDir); err != nil {
return nil, err
}
*/
u, err := user.LookupId(strconv.FormatUint(uint64(uid), 10))
if err != nil {
return nil, fmt.Errorf("Failed to look up user with uid=%ld: %v", uid, err)
}
groups, err := d.sanitizeGroups(p, u.Username, msg.Gids)
if err != nil {
return nil, fmt.Errorf("Unable to sanitize user groups: %v", err)
}
display := 0
if p.XServer.Enabled && p.Networking.Nettype == network.TYPE_HOST {
display = d.nextDisplay
d.nextDisplay += 1
}
stn := new(network.SandboxNetwork)
stn.Nettype = p.Networking.Nettype
if p.Networking.Nettype == network.TYPE_BRIDGE {
stn, err = network.PrepareSandboxNetwork(nil, d.network, log)
if err != nil {
return nil, fmt.Errorf("Unable to prepare veth network: %+v", err)
}
if err := network.NetInit(stn, d.network, log); err != nil {
return nil, fmt.Errorf("Unable to create veth networking: %+v", err)
}
}
socketPath, err := createSocketPath(path.Join(d.config.SandboxPath, "sockets"))
if err != nil {
return nil, fmt.Errorf("Failed to create random socket path: %v", err)
}
initPath := path.Join(d.config.PrefixPath, "bin", "oz-init")
cmd := createInitCommand(initPath, (stn.Nettype != network.TYPE_HOST))
pp, err := cmd.StderrPipe()
if err != nil {
//fs.Cleanup()
return nil, fmt.Errorf("error creating stderr pipe for init process: %v", err)
}
pi, err := cmd.StdinPipe()
if err != nil {
//fs.Cleanup()
return nil, fmt.Errorf("error creating stdin pipe for init process: %v", err)
}
jdata, err := json.Marshal(ozinit.InitData{
Display: display,
User: *u,
Uid: uid,
Gid: gid,
Gids: groups,
Network: network.SandboxNetwork{
Interface: stn.Interface,
VethHost: stn.VethHost,
VethGuest: stn.VethGuest,
Ip: stn.Ip,
Gateway: stn.Gateway,
Class: stn.Class,
Nettype: stn.Nettype,
},
Profile: *p,
Config: *d.config,
Sockaddr: socketPath,
LaunchEnv: msg.Env,
})
if err != nil {
return nil, fmt.Errorf("Unable to marshal init state: %+v", err)
}
io.Copy(pi, bytes.NewBuffer(jdata))
pi.Close()
if err := cmd.Start(); err != nil {
//fs.Cleanup()
return nil, fmt.Errorf("Unable to start process: %+v", err)
}
//rootfs := path.Join(d.config.SandboxPath, "rootfs")
sbox := &Sandbox{
daemon: d,
id: d.nextSboxId,
display: display,
profile: p,
init: cmd,
cred: &syscall.Credential{Uid: uid, Gid: gid, Groups: msg.Gids},
user: u,
fs: fs.NewFilesystem(d.config, log),
//addr: path.Join(rootfs, ozinit.SocketAddress),
addr: socketPath,
stderr: pp,
network: stn,
rawEnv: rawEnv,
}
sbox.ready.Add(1)
sbox.waiting.Add(1)
go sbox.logMessages()
sbox.waiting.Wait()
if p.Networking.Nettype == network.TYPE_BRIDGE {
if err := network.NetAttach(stn, d.network, cmd.Process.Pid); err != nil {
cmd.Process.Kill()
return nil, fmt.Errorf("Unable to attach veth networking: %+v", err)
}
}
cmd.Process.Signal(syscall.SIGUSR1)
wgNet := new(sync.WaitGroup)
if p.Networking.Nettype != network.TYPE_HOST &&
p.Networking.Nettype != network.TYPE_NONE &&
len(p.Networking.Sockets) > 0 {
wgNet.Add(1)
go func() {
defer wgNet.Done()
sbox.ready.Wait()
err := network.ProxySetup(sbox.init.Process.Pid, p.Networking.Sockets, d.log, sbox.ready)
if err != nil {
log.Warning("Unable to create connection proxy: %+s", err)
}
}()
}
if !msg.Noexec {
go func() {
sbox.ready.Wait()
wgNet.Wait()
go sbox.launchProgram(d.config.PrefixPath, msg.Path, msg.Pwd, msg.Args, log)
}()
}
if sbox.profile.XServer.Enabled {
go func() {
sbox.ready.Wait()
go sbox.startXpraClient()
}()
}
d.nextSboxId += 1
d.sandboxes = append(d.sandboxes, sbox)
return sbox, nil
}