Merge pull request #1383 from dims/update-to-new-rc10-of-opencontainers/runc

Bump to opencontainers/runc new version - v1.0.0-rc10

vendor.conf

@@ -1,6 +1,6 @@
 # cri dependencies
 github.com/tchap/go-patricia 666120de432aea38ab06bd5c818f04f4129882c9 # v2.2.6
-github.com/opencontainers/selinux 3a1f366feb7aecbf7a0e71ac4cea88b31597de9e # v1.2.2
+github.com/opencontainers/selinux 5215b1806f52b1fcc2070a8826c542c9d33cd3cf
 github.com/docker/docker d1d5f6476656c6aad457e2a91d3436e66b6f2251
 github.com/docker/distribution 0d3efadf0154c2b8a4e7b6621fff9809655cc580
 
@@ -22,7 +22,7 @@ github.com/prometheus/client_model 99fa1f4be8e564e8a6b613da7fa6f46c9edafc6c
 github.com/prometheus/client_golang f4fb1b73fb099f396a7f0036bf86aa8def4ed823
 github.com/pkg/errors ba968bfe8b2f7e042a574c888954fccecfa385b4 # v0.8.1
 github.com/opencontainers/runtime-spec 29686dbc5559d93fb1ef402eeda3e35c38d75af4 # v1.0.1-59-g29686db
-github.com/opencontainers/runc d736ef14f0288d6993a1845745d6756cfc9ddd5a # v1.0.0-rc9
+github.com/opencontainers/runc dc9208a3303feef5b3839f4323d9beb36df0a9dd # v1.0.0-rc10
 github.com/opencontainers/image-spec d60099175f88c47cd379c4738d158884749ed235 # v1.0.1
 github.com/opencontainers/go-digest c9281466c8b2f606084ac71339773efd177436e7
 github.com/matttproud/golang_protobuf_extensions c12348ce28de40eed0136aa2b644d0ee0650e56c # v1.0.1

vendor/github.com/opencontainers/runc/README.md

@@ -16,9 +16,13 @@ This means that `runc` 1.0.0 should implement the 1.0 version of the specificati
 
 You can find official releases of `runc` on the [release](https://github.com/opencontainers/runc/releases) page.
 
+Currently, the following features are not considered to be production-ready:
+
+* Support for cgroup v2
+
 ## Security
 
-Reporting process and disclosure communications are outlined in [/org/security](https://github.com/opencontainers/org/blob/master/security/)
+The reporting process and disclosure communications are outlined in [/org/security](https://github.com/opencontainers/org/blob/master/security/).
 
 ## Building
 
@@ -229,7 +233,14 @@ runc delete mycontainerid
 This allows higher level systems to augment the containers creation logic with setup of various settings after the container is created and/or before it is deleted. For example, the container's network stack is commonly set up after `create` but before `start`.
 
 #### Rootless containers
-`runc` has the ability to run containers without root privileges. This is called `rootless`. You need to pass some parameters to `runc` in order to run rootless containers. See below and compare with the previous version. Run the following commands as an ordinary user:
+`runc` has the ability to run containers without root privileges. This is called `rootless`. You need to pass some parameters to `runc` in order to run rootless containers. See below and compare with the previous version.
+
+**Note:** In order to use this feature, "User Namespaces" must be compiled and enabled in your kernel. There are various ways to do this depending on your distribution:
+- Confirm `CONFIG_USER_NS=y` is set in your kernel configuration (normally found in `/proc/config.gz`)
+- Arch/Debian: `echo 1 > /proc/sys/kernel/unprivileged_userns_clone`
+- RHEL/CentOS 7: `echo 28633 > /proc/sys/user/max_user_namespaces`
+
+Run the following commands as an ordinary user:
 ```bash
 # Same as the first example
 mkdir ~/mycontainer

vendor/github.com/opencontainers/runc/vendor.conf

@@ -26,3 +26,6 @@ golang.org/x/sys                        9eafafc0a87e0fd0aeeba439a4573537970c44c7
 # console dependencies
 github.com/containerd/console           0650fd9eeb50bab4fc99dceb9f2e14cf58f36e7f
 github.com/pkg/errors                   ba968bfe8b2f7e042a574c888954fccecfa385b4 # v0.8.1
+
+# ebpf dependencies
+github.com/cilium/ebpf                  95b36a581eed7b0f127306ed1d16cc0ddc06cf67

vendor/github.com/opencontainers/selinux/go-selinux/label/label_selinux.go

@@ -13,11 +13,12 @@ import (
 
 // Valid Label Options
 var validOptions = map[string]bool{
-	"disable": true,
+	"disable":  true,
-	"type":    true,
+	"type":     true,
-	"user":    true,
+	"filetype": true,
-	"role":    true,
+	"user":     true,
-	"level":   true,
+	"role":     true,
+	"level":    true,
 }
 
 var ErrIncompatibleLabel = fmt.Errorf("Bad SELinux option z and Z can not be used together")
@@ -51,13 +52,16 @@ func InitLabels(options []string) (plabel string, mlabel string, Err error) {
 				return "", mountLabel, nil
 			}
 			if i := strings.Index(opt, ":"); i == -1 {
-				return "", "", fmt.Errorf("Bad label option %q, valid options 'disable' or \n'user, role, level, type' followed by ':' and a value", opt)
+				return "", "", fmt.Errorf("Bad label option %q, valid options 'disable' or \n'user, role, level, type, filetype' followed by ':' and a value", opt)
 			}
 			con := strings.SplitN(opt, ":", 2)
 			if !validOptions[con[0]] {
-				return "", "", fmt.Errorf("Bad label option %q, valid options 'disable, user, role, level, type'", con[0])
+				return "", "", fmt.Errorf("Bad label option %q, valid options 'disable, user, role, level, type, filetype'", con[0])
 
 			}
+			if con[0] == "filetype" {
+				mcon["type"] = con[1]
+			}
 			pcon[con[0]] = con[1]
 			if con[0] == "level" || con[0] == "user" {
 				mcon[con[0]] = con[1]

vendor/github.com/opencontainers/selinux/go-selinux/selinux_linux.go

@@ -18,6 +18,8 @@ import (
 	"strings"
 	"sync"
 	"syscall"
+
+	"golang.org/x/sys/unix"
 )
 
 const (
@@ -252,6 +254,12 @@ func getSELinuxPolicyRoot() string {
 	return filepath.Join(selinuxDir, readConfig(selinuxTypeTag))
 }
 
+func isProcHandle(fh *os.File) (bool, error) {
+	var buf unix.Statfs_t
+	err := unix.Fstatfs(int(fh.Fd()), &buf)
+	return buf.Type == unix.PROC_SUPER_MAGIC, err
+}
+
 func readCon(fpath string) (string, error) {
 	if fpath == "" {
 		return "", ErrEmptyPath
@@ -263,6 +271,12 @@ func readCon(fpath string) (string, error) {
 	}
 	defer in.Close()
 
+	if ok, err := isProcHandle(in); err != nil {
+		return "", err
+	} else if !ok {
+		return "", fmt.Errorf("%s not on procfs", fpath)
+	}
+
 	var retval string
 	if _, err := fmt.Fscanf(in, "%s", &retval); err != nil {
 		return "", err
@@ -345,6 +359,12 @@ func writeCon(fpath string, val string) error {
 	}
 	defer out.Close()
 
+	if ok, err := isProcHandle(out); err != nil {
+		return err
+	} else if !ok {
+		return fmt.Errorf("%s not on procfs", fpath)
+	}
+
 	if val != "" {
 		_, err = out.Write([]byte(val))
 	} else {
@@ -392,6 +412,14 @@ func SetExecLabel(label string) error {
 	return writeCon(fmt.Sprintf("/proc/self/task/%d/attr/exec", syscall.Gettid()), label)
 }
 
+/*
+SetTaskLabel sets the SELinux label for the current thread, or an error.
+This requires the dyntransition permission.
+*/
+func SetTaskLabel(label string) error {
+	return writeCon(fmt.Sprintf("/proc/self/task/%d/attr/current", syscall.Gettid()), label)
+}
+
 // SetSocketLabel takes a process label and tells the kernel to assign the
 // label to the next socket that gets created
 func SetSocketLabel(label string) error {
@@ -403,6 +431,11 @@ func SocketLabel() (string, error) {
 	return readCon(fmt.Sprintf("/proc/self/task/%d/attr/sockcreate", syscall.Gettid()))
 }
 
+// PeerLabel retrieves the label of the client on the other side of a socket
+func PeerLabel(fd uintptr) (string, error) {
+	return unix.GetsockoptString(int(fd), syscall.SOL_SOCKET, syscall.SO_PEERSEC)
+}
+
 // SetKeyLabel takes a process label and tells the kernel to assign the
 // label to the next kernel keyring that gets created
 func SetKeyLabel(label string) error {

vendor/github.com/opencontainers/selinux/go-selinux/selinux_stub.go

@@ -96,6 +96,14 @@ func SetExecLabel(label string) error {
 	return nil
 }
 
+/*
+SetTaskLabel sets the SELinux label for the current thread, or an error.
+This requires the dyntransition permission.
+*/
+func SetTaskLabel(label string) error {
+        return nil
+}
+
 /*
 SetSocketLabel sets the SELinux label that the kernel will use for any programs
 that are executed by the current process thread, or an error.
@@ -109,6 +117,11 @@ func SocketLabel() (string, error) {
 	return "", nil
 }
 
+// PeerLabel retrieves the label of the client on the other side of a socket
+func PeerLabel(fd uintptr) (string, error) {
+	return "", nil
+}
+
 // SetKeyLabel takes a process label and tells the kernel to assign the
 // label to the next kernel keyring that gets created
 func SetKeyLabel(label string) error {