Error on rootless mac and ip addresses

When creating a pod or container where a static MAC or IP address is provided, we should return a proper error and exit as 125.

Fixes: #6972

Signed-off-by: Brent Baude <bbaude@redhat.com>

pkg/specgen/container_validate.go

@@ -28,6 +28,15 @@ func exclusiveOptions(opt1, opt2 string) error {
 // input for creating a container.
 func (s *SpecGenerator) Validate() error {
 
+	if rootless.IsRootless() {
+		if s.StaticIP != nil || s.StaticIPv6 != nil {
+			return ErrNoStaticIPRootless
+		}
+		if s.StaticMAC != nil {
+			return ErrNoStaticMACRootless
+		}
+	}
+
 	//
 	// ContainerBasicConfig
 	//

pkg/specgen/pod_validate.go

@@ -1,6 +1,7 @@
 package specgen
 
 import (
+	"github.com/containers/libpod/v2/pkg/rootless"
 	"github.com/containers/libpod/v2/pkg/util"
 	"github.com/pkg/errors"
 )
@@ -18,6 +19,16 @@ func exclusivePodOptions(opt1, opt2 string) error {
 
 // Validate verifies the input is valid
 func (p *PodSpecGenerator) Validate() error {
+
+	if rootless.IsRootless() {
+		if p.StaticIP != nil {
+			return ErrNoStaticIPRootless
+		}
+		if p.StaticMAC != nil {
+			return ErrNoStaticMACRootless
+		}
+	}
+
 	// PodBasicConfig
 	if p.NoInfra {
 		if len(p.InfraCommand) > 0 {

pkg/specgen/specgen.go

@@ -1,6 +1,7 @@
 package specgen
 
 import (
+	"errors"
 	"net"
 	"syscall"
 
@@ -469,6 +470,15 @@ type PortMapping struct {
 	Protocol string `json:"protocol,omitempty"`
 }
 
+var (
+	// ErrNoStaticIPRootless is used when a rootless user requests to assign a static IP address
+	// to a pod or container
+	ErrNoStaticIPRootless error = errors.New("rootless containers and pods cannot be assigned static IP addresses")
+	// ErrNoStaticMACRootless is used when a rootless user requests to assign a static MAC address
+	// to a pod or container
+	ErrNoStaticMACRootless error = errors.New("rootless containers and pods cannot be assigned static MAC addresses")
+)
+
 // NewSpecGenerator returns a SpecGenerator struct given one of two mandatory inputs
 func NewSpecGenerator(arg string, rootfs bool) *SpecGenerator {
 	csc := ContainerStorageConfig{}

test/e2e/common_test.go

@@ -595,3 +595,7 @@ func SkipIfNotFedora() {
 		ginkgo.Skip("Test can only run on Fedora")
 	}
 }
+
+func isRootless() bool {
+	return os.Geteuid() != 0
+}

test/e2e/create_staticip_test.go

@@ -6,6 +6,7 @@ import (
 	"os"
 	"time"
 
+	"github.com/containers/libpod/v2/pkg/rootless"
 	. "github.com/containers/libpod/v2/test/utils"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
@@ -19,7 +20,6 @@ var _ = Describe("Podman create with --ip flag", func() {
 	)
 
 	BeforeEach(func() {
-		SkipIfRootless()
 		tempdir, err = CreateTempDirInTempDir()
 		if err != nil {
 			os.Exit(1)
@@ -39,18 +39,21 @@ var _ = Describe("Podman create with --ip flag", func() {
 	})
 
 	It("Podman create --ip with garbage address", func() {
+		SkipIfRootless()
 		result := podmanTest.Podman([]string{"create", "--name", "test", "--ip", "114232346", ALPINE, "ls"})
 		result.WaitWithDefaultTimeout()
 		Expect(result).To(ExitWithError())
 	})
 
 	It("Podman create --ip with v6 address", func() {
+		SkipIfRootless()
 		result := podmanTest.Podman([]string{"create", "--name", "test", "--ip", "2001:db8:bad:beef::1", ALPINE, "ls"})
 		result.WaitWithDefaultTimeout()
 		Expect(result).To(ExitWithError())
 	})
 
 	It("Podman create --ip with non-allocatable IP", func() {
+		SkipIfRootless()
 		result := podmanTest.Podman([]string{"create", "--name", "test", "--ip", "203.0.113.124", ALPINE, "ls"})
 		result.WaitWithDefaultTimeout()
 		Expect(result.ExitCode()).To(Equal(0))
@@ -64,19 +67,25 @@ var _ = Describe("Podman create with --ip flag", func() {
 		ip := GetRandomIPAddress()
 		result := podmanTest.Podman([]string{"create", "--name", "test", "--ip", ip, ALPINE, "ip", "addr"})
 		result.WaitWithDefaultTimeout()
-		Expect(result.ExitCode()).To(Equal(0))
+		// Rootless static ip assignment should error
+		if rootless.IsRootless() {
+			Expect(result.ExitCode()).To(Equal(125))
+		} else {
+			Expect(result.ExitCode()).To(Equal(0))
 
-		result = podmanTest.Podman([]string{"start", "test"})
+			result = podmanTest.Podman([]string{"start", "test"})
-		result.WaitWithDefaultTimeout()
+			result.WaitWithDefaultTimeout()
-		Expect(result.ExitCode()).To(Equal(0))
+			Expect(result.ExitCode()).To(Equal(0))
 
-		result = podmanTest.Podman([]string{"logs", "test"})
+			result = podmanTest.Podman([]string{"logs", "test"})
-		result.WaitWithDefaultTimeout()
+			result.WaitWithDefaultTimeout()
-		Expect(result.ExitCode()).To(Equal(0))
+			Expect(result.ExitCode()).To(Equal(0))
-		Expect(result.OutputToString()).To(ContainSubstring(ip + "/16"))
+			Expect(result.OutputToString()).To(ContainSubstring(ip + "/16"))
+		}
 	})
 
 	It("Podman create two containers with the same IP", func() {
+		SkipIfRootless()
 		ip := GetRandomIPAddress()
 		result := podmanTest.Podman([]string{"create", "--name", "test1", "--ip", ip, ALPINE, "sleep", "999"})
 		result.WaitWithDefaultTimeout()

test/e2e/create_staticmac_test.go

@@ -1,10 +1,9 @@
-// +build !remote
-
 package integration
 
 import (
 	"os"
 
+	"github.com/containers/libpod/v2/pkg/rootless"
 	. "github.com/containers/libpod/v2/test/utils"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
@@ -18,7 +17,6 @@ var _ = Describe("Podman run with --mac-address flag", func() {
 	)
 
 	BeforeEach(func() {
-		SkipIfRootless()
 		tempdir, err = CreateTempDirInTempDir()
 		if err != nil {
 			os.Exit(1)
@@ -40,7 +38,11 @@ var _ = Describe("Podman run with --mac-address flag", func() {
 	It("Podman run --mac-address", func() {
 		result := podmanTest.Podman([]string{"run", "--mac-address", "92:d0:c6:0a:29:34", ALPINE, "ip", "addr"})
 		result.WaitWithDefaultTimeout()
-		Expect(result.ExitCode()).To(Equal(0))
+		if rootless.IsRootless() {
-		Expect(result.OutputToString()).To(ContainSubstring("92:d0:c6:0a:29:34"))
+			Expect(result.ExitCode()).To(Equal(125))
+		} else {
+			Expect(result.ExitCode()).To(Equal(0))
+			Expect(result.OutputToString()).To(ContainSubstring("92:d0:c6:0a:29:34"))
+		}
 	})
 })

test/e2e/libpod_suite_remote_test.go

@@ -28,11 +28,6 @@ func SkipIfRootless() {
 		ginkgo.Skip("This function is not enabled for rootless podman")
 	}
 }
-func SkipIfRootlessV2() {
-	if os.Geteuid() != 0 {
-		ginkgo.Skip("This function is not enabled for v2 rootless podman")
-	}
-}
 
 // Podman is the exec call to podman on the filesystem
 func (p *PodmanTestIntegration) Podman(args []string) *PodmanSessionIntegration {

test/e2e/libpod_suite_test.go

@@ -41,12 +41,6 @@ func SkipIfRootless() {
 	}
 }
 
-func SkipIfRootlessV2() {
-	if os.Geteuid() != 0 {
-		Skip("This function is not enabled for v2 rootless podman")
-	}
-}
-
 // Podman is the exec call to podman on the filesystem
 func (p *PodmanTestIntegration) Podman(args []string) *PodmanSessionIntegration {
 	podmanSession := p.PodmanBase(args, false, false)

test/e2e/pod_create_test.go

@@ -7,6 +7,7 @@ import (
 	"path/filepath"
 	"strings"
 
+	"github.com/containers/libpod/v2/pkg/rootless"
 	. "github.com/containers/libpod/v2/test/utils"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
@@ -238,17 +239,20 @@ var _ = Describe("Podman pod create", func() {
 	})
 
 	It("podman create pod with IP address", func() {
-		SkipIfRootless()
 		name := "test"
 		ip := GetRandomIPAddress()
 		podCreate := podmanTest.Podman([]string{"pod", "create", "--ip", ip, "--name", name})
 		podCreate.WaitWithDefaultTimeout()
-		Expect(podCreate.ExitCode()).To(Equal(0))
+		// Rootless should error
-
+		if rootless.IsRootless() {
-		podResolvConf := podmanTest.Podman([]string{"run", "--pod", name, "-ti", "--rm", ALPINE, "ip", "addr"})
+			Expect(podCreate.ExitCode()).To(Equal(125))
-		podResolvConf.WaitWithDefaultTimeout()
+		} else {
-		Expect(podResolvConf.ExitCode()).To(Equal(0))
+			Expect(podCreate.ExitCode()).To(Equal(0))
-		Expect(strings.Contains(podResolvConf.OutputToString(), ip)).To(BeTrue())
+			podResolvConf := podmanTest.Podman([]string{"run", "--pod", name, "-ti", "--rm", ALPINE, "ip", "addr"})
+			podResolvConf.WaitWithDefaultTimeout()
+			Expect(podResolvConf.ExitCode()).To(Equal(0))
+			Expect(strings.Contains(podResolvConf.OutputToString(), ip)).To(BeTrue())
+		}
 	})
 
 	It("podman create pod with IP address and no infra should fail", func() {
@@ -262,17 +266,20 @@ var _ = Describe("Podman pod create", func() {
 
 	It("podman create pod with MAC address", func() {
 		SkipIfRemote()
-		SkipIfRootless()
 		name := "test"
 		mac := "92:d0:c6:0a:29:35"
 		podCreate := podmanTest.Podman([]string{"pod", "create", "--mac-address", mac, "--name", name})
 		podCreate.WaitWithDefaultTimeout()
-		Expect(podCreate.ExitCode()).To(Equal(0))
+		// Rootless should error
-
+		if rootless.IsRootless() {
-		podResolvConf := podmanTest.Podman([]string{"run", "--pod", name, "-ti", "--rm", ALPINE, "ip", "addr"})
+			Expect(podCreate.ExitCode()).To(Equal(125))
-		podResolvConf.WaitWithDefaultTimeout()
+		} else {
-		Expect(podResolvConf.ExitCode()).To(Equal(0))
+			Expect(podCreate.ExitCode()).To(Equal(0))
-		Expect(strings.Contains(podResolvConf.OutputToString(), mac)).To(BeTrue())
+			podResolvConf := podmanTest.Podman([]string{"run", "--pod", name, "-ti", "--rm", ALPINE, "ip", "addr"})
+			podResolvConf.WaitWithDefaultTimeout()
+			Expect(podResolvConf.ExitCode()).To(Equal(0))
+			Expect(strings.Contains(podResolvConf.OutputToString(), mac)).To(BeTrue())
+		}
 	})
 
 	It("podman create pod with MAC address and no infra should fail", func() {

test/system/200-pod.bats

@@ -165,9 +165,13 @@ function random_ip() {
     # Create a pod with all the desired options
     # FIXME: --ip=$ip fails:
     #      Error adding network: failed to allocate all requested IPs
+    local mac_option="--mac-address=$mac"
+    if is_rootless; then
+        mac_option=
+    fi
     run_podman pod create --name=mypod                   \
                --pod-id-file=$pod_id_file                \
-               --mac-address=$mac                        \
+               $mac_option                               \
                --hostname=$hostname                      \
                --add-host   "$add_host_n:$add_host_ip"   \
                --dns        "$dns_server"                \
@@ -181,7 +185,7 @@ function random_ip() {
     is "$(<$pod_id_file)" "$pod_id" "contents of pod-id-file"
 
     # Check each of the options
-    if ! is_rootless; then
+    if [ -n "$mac_option" ]; then
         run_podman run --rm --pod mypod $IMAGE ip link show
         # 'ip' outputs hex in lower-case, ${expr,,} converts UC to lc
         is "$output" ".* link/ether ${mac,,} " "requested MAC address was set"