diff options
Diffstat (limited to 'runsc/cmd')
| -rw-r--r-- | runsc/cmd/gofer.go | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/runsc/cmd/gofer.go b/runsc/cmd/gofer.go index 9faabf494..8e63c80e0 100644 --- a/runsc/cmd/gofer.go +++ b/runsc/cmd/gofer.go @@ -56,10 +56,11 @@ var goferCaps = &specs.LinuxCapabilities{ // Gofer implements subcommands.Command for the "gofer" command, which starts a // filesystem gofer. This command should not be called directly. type Gofer struct { - bundleDir string - ioFDs intFlags - applyCaps bool - setUpRoot bool + bundleDir string + ioFDs intFlags + applyCaps bool + hostUDSAllowed bool + setUpRoot bool panicOnWrite bool specFD int @@ -86,6 +87,7 @@ func (g *Gofer) SetFlags(f *flag.FlagSet) { f.StringVar(&g.bundleDir, "bundle", "", "path to the root of the bundle directory, defaults to the current directory") f.Var(&g.ioFDs, "io-fds", "list of FDs to connect 9P servers. They must follow this order: root first, then mounts as defined in the spec") f.BoolVar(&g.applyCaps, "apply-caps", true, "if true, apply capabilities to restrict what the Gofer process can do") + f.BoolVar(&g.hostUDSAllowed, "host-uds-allowed", false, "if true, allow the Gofer to mount a host UDS") f.BoolVar(&g.panicOnWrite, "panic-on-write", false, "if true, panics on attempts to write to RO mounts. RW mounts are unnaffected") f.BoolVar(&g.setUpRoot, "setup-root", true, "if true, set up an empty root for the process") f.IntVar(&g.specFD, "spec-fd", -1, "required fd with the container spec") @@ -180,8 +182,9 @@ func (g *Gofer) Execute(_ context.Context, f *flag.FlagSet, args ...interface{}) for _, m := range spec.Mounts { if specutils.Is9PMount(m) { cfg := fsgofer.Config{ - ROMount: isReadonlyMount(m.Options), - PanicOnWrite: g.panicOnWrite, + ROMount: isReadonlyMount(m.Options), + PanicOnWrite: g.panicOnWrite, + HostUDSAllowed: g.hostUDSAllowed, } ap, err := fsgofer.NewAttachPoint(m.Destination, cfg) if err != nil { @@ -200,8 +203,14 @@ func (g *Gofer) Execute(_ context.Context, f *flag.FlagSet, args ...interface{}) Fatalf("too many FDs passed for mounts. mounts: %d, FDs: %d", mountIdx, len(g.ioFDs)) } - if err := filter.Install(); err != nil { - Fatalf("installing seccomp filters: %v", err) + if g.hostUDSAllowed { + if err := filter.InstallUDS(); err != nil { + Fatalf("installing UDS seccomp filters: %v", err) + } + } else { + if err := filter.Install(); err != nil { + Fatalf("installing seccomp filters: %v", err) + } } runServers(ats, g.ioFDs) |