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-rw-r--r--libpod/network/config.go10
-rw-r--r--libpod/network/create.go1
-rw-r--r--libpod/network/files.go5
-rw-r--r--libpod/network/netconflist.go7
-rw-r--r--libpod/network/network.go28
-rw-r--r--libpod/network/subnet.go14
-rw-r--r--libpod/network/subnet_test.go62
7 files changed, 108 insertions, 19 deletions
diff --git a/libpod/network/config.go b/libpod/network/config.go
index ce8a4446c..ce351129e 100644
--- a/libpod/network/config.go
+++ b/libpod/network/config.go
@@ -129,6 +129,16 @@ func (f FirewallConfig) Bytes() ([]byte, error) {
return json.MarshalIndent(f, "", "\t")
}
+// TuningConfig describes the tuning plugin
+type TuningConfig struct {
+ PluginType string `json:"type"`
+}
+
+// Bytes outputs the configuration as []byte
+func (f TuningConfig) Bytes() ([]byte, error) {
+ return json.MarshalIndent(f, "", "\t")
+}
+
// DNSNameConfig describes the dns container name resolution plugin config
type DNSNameConfig struct {
PluginType string `json:"type"`
diff --git a/libpod/network/create.go b/libpod/network/create.go
index 387f4fcd3..7e4fc574a 100644
--- a/libpod/network/create.go
+++ b/libpod/network/create.go
@@ -176,6 +176,7 @@ func createBridge(name string, options entities.NetworkCreateOptions, runtimeCon
plugins = append(plugins, bridge)
plugins = append(plugins, NewPortMapPlugin())
plugins = append(plugins, NewFirewallPlugin())
+ plugins = append(plugins, NewTuningPlugin())
// if we find the dnsname plugin or are rootless, we add configuration for it
// the rootless-cni-infra container has the dnsname plugin always installed
if (HasDNSNamePlugin(runtimeConfig.Network.CNIPluginDirs) || rootless.IsRootless()) && !options.DisableDNS {
diff --git a/libpod/network/files.go b/libpod/network/files.go
index 846e5c62d..7f1e3ee18 100644
--- a/libpod/network/files.go
+++ b/libpod/network/files.go
@@ -14,6 +14,9 @@ import (
"github.com/pkg/errors"
)
+// ErrNoSuchNetworkInterface indicates that no network interface exists
+var ErrNoSuchNetworkInterface = errors.New("unable to find interface name for network")
+
// GetCNIConfDir get CNI configuration directory
func GetCNIConfDir(configArg *config.Config) string {
if len(configArg.Network.NetworkConfigDir) < 1 {
@@ -142,7 +145,7 @@ func GetInterfaceNameFromConfig(path string) (string, error) {
}
}
if len(name) == 0 {
- return "", errors.New("unable to find interface name for network")
+ return "", ErrNoSuchNetworkInterface
}
return name, nil
}
diff --git a/libpod/network/netconflist.go b/libpod/network/netconflist.go
index 111f1715c..ee9adce14 100644
--- a/libpod/network/netconflist.go
+++ b/libpod/network/netconflist.go
@@ -119,6 +119,13 @@ func NewFirewallPlugin() FirewallConfig {
}
}
+// NewTuningPlugin creates a generic tuning section
+func NewTuningPlugin() TuningConfig {
+ return TuningConfig{
+ PluginType: "tuning",
+ }
+}
+
// NewDNSNamePlugin creates the dnsname config with a given
// domainname
func NewDNSNamePlugin(domainName string) DNSNameConfig {
diff --git a/libpod/network/network.go b/libpod/network/network.go
index 7327a1a7d..0febb52f6 100644
--- a/libpod/network/network.go
+++ b/libpod/network/network.go
@@ -10,6 +10,7 @@ import (
"github.com/containernetworking/plugins/plugins/ipam/host-local/backend/allocator"
"github.com/containers/common/pkg/config"
"github.com/containers/podman/v2/libpod/define"
+ "github.com/containers/podman/v2/pkg/rootless"
"github.com/containers/podman/v2/pkg/util"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
@@ -181,21 +182,26 @@ func RemoveNetwork(config *config.Config, name string) error {
// Before we delete the configuration file, we need to make sure we can read and parse
// it to get the network interface name so we can remove that too
interfaceName, err := GetInterfaceNameFromConfig(cniPath)
- if err != nil {
- return errors.Wrapf(err, "failed to find network interface name in %q", cniPath)
- }
- liveNetworkNames, err := GetLiveNetworkNames()
- if err != nil {
- return errors.Wrapf(err, "failed to get live network names")
- }
- if util.StringInSlice(interfaceName, liveNetworkNames) {
- if err := RemoveInterface(interfaceName); err != nil {
- return errors.Wrapf(err, "failed to delete the network interface %q", interfaceName)
+ if err == nil {
+ // Don't try to remove the network interface if we are not root
+ if !rootless.IsRootless() {
+ liveNetworkNames, err := GetLiveNetworkNames()
+ if err != nil {
+ return errors.Wrapf(err, "failed to get live network names")
+ }
+ if util.StringInSlice(interfaceName, liveNetworkNames) {
+ if err := RemoveInterface(interfaceName); err != nil {
+ return errors.Wrapf(err, "failed to delete the network interface %q", interfaceName)
+ }
+ }
}
+ } else if err != ErrNoSuchNetworkInterface {
+ // Don't error if we couldn't find the network interface name
+ return err
}
// Remove the configuration file
if err := os.Remove(cniPath); err != nil {
- return errors.Wrapf(err, "failed to remove network configuration file %q", cniPath)
+ return errors.Wrap(err, "failed to remove network configuration")
}
return nil
}
diff --git a/libpod/network/subnet.go b/libpod/network/subnet.go
index 90f0cdfce..120038e57 100644
--- a/libpod/network/subnet.go
+++ b/libpod/network/subnet.go
@@ -54,14 +54,10 @@ func LastIPInSubnet(addr *net.IPNet) (net.IP, error) { //nolint:interfacer
ones, bits := cidr.Mask.Size()
if ones == bits {
- return FirstIPInSubnet(cidr)
+ return cidr.IP, nil
}
- hostStart := ones / 8
- // Handle the first host byte
- cidr.IP[hostStart] |= 0xff & cidr.Mask[hostStart]
- // Fill the rest with ones
- for i := hostStart; i < len(cidr.IP); i++ {
- cidr.IP[i] = 0xff
+ for i := range cidr.IP {
+ cidr.IP[i] = cidr.IP[i] | ^cidr.Mask[i]
}
return cidr.IP, nil
}
@@ -73,6 +69,10 @@ func FirstIPInSubnet(addr *net.IPNet) (net.IP, error) { //nolint:interfacer
if err != nil {
return nil, err
}
+ ones, bits := cidr.Mask.Size()
+ if ones == bits {
+ return cidr.IP, nil
+ }
cidr.IP[len(cidr.IP)-1]++
return cidr.IP, nil
}
diff --git a/libpod/network/subnet_test.go b/libpod/network/subnet_test.go
index 917c3be88..55b2443bd 100644
--- a/libpod/network/subnet_test.go
+++ b/libpod/network/subnet_test.go
@@ -33,3 +33,65 @@ func TestNextSubnet(t *testing.T) {
})
}
}
+
+func TestFirstIPInSubnet(t *testing.T) {
+ tests := []struct {
+ name string
+ args *net.IPNet
+ want net.IP
+ wantErr bool
+ }{
+ {"class b", parseCIDR("192.168.0.0/16"), net.ParseIP("192.168.0.1"), false},
+ {"class c", parseCIDR("192.168.1.0/24"), net.ParseIP("192.168.1.1"), false},
+ {"cidr /23", parseCIDR("192.168.0.0/23"), net.ParseIP("192.168.0.1"), false},
+ {"cidr /25", parseCIDR("192.168.1.0/25"), net.ParseIP("192.168.1.1"), false},
+ {"cidr /26", parseCIDR("172.16.1.128/26"), net.ParseIP("172.16.1.129"), false},
+ {"class a", parseCIDR("10.0.0.0/8"), net.ParseIP("10.0.0.1"), false},
+ {"cidr /32", parseCIDR("192.168.255.4/32"), net.ParseIP("192.168.255.4"), false},
+ {"cidr /31", parseCIDR("192.168.255.4/31"), net.ParseIP("192.168.255.5"), false},
+ }
+ for _, tt := range tests {
+ test := tt
+ t.Run(test.name, func(t *testing.T) {
+ got, err := FirstIPInSubnet(test.args)
+ if (err != nil) != test.wantErr {
+ t.Errorf("FirstIPInSubnet() error = %v, wantErr %v", err, test.wantErr)
+ return
+ }
+ if !got.Equal(test.want) {
+ t.Errorf("FirstIPInSubnet() got = %v, want %v", got, test.want)
+ }
+ })
+ }
+}
+
+func TestLastIPInSubnet(t *testing.T) {
+ tests := []struct {
+ name string
+ args *net.IPNet
+ want net.IP
+ wantErr bool
+ }{
+ {"class b", parseCIDR("192.168.0.0/16"), net.ParseIP("192.168.255.255"), false},
+ {"class c", parseCIDR("192.168.1.0/24"), net.ParseIP("192.168.1.255"), false},
+ {"cidr /23", parseCIDR("192.168.0.0/23"), net.ParseIP("192.168.1.255"), false},
+ {"cidr /25", parseCIDR("192.168.1.0/25"), net.ParseIP("192.168.1.127"), false},
+ {"cidr /26", parseCIDR("172.16.1.128/26"), net.ParseIP("172.16.1.191"), false},
+ {"class a", parseCIDR("10.0.0.0/8"), net.ParseIP("10.255.255.255"), false},
+ {"cidr /32", parseCIDR("192.168.255.4/32"), net.ParseIP("192.168.255.4"), false},
+ {"cidr /31", parseCIDR("192.168.255.4/31"), net.ParseIP("192.168.255.5"), false},
+ }
+ for _, tt := range tests {
+ test := tt
+ t.Run(test.name, func(t *testing.T) {
+ got, err := LastIPInSubnet(test.args)
+ if (err != nil) != test.wantErr {
+ t.Errorf("LastIPInSubnet() error = %v, wantErr %v", err, test.wantErr)
+ return
+ }
+ if !got.Equal(test.want) {
+ t.Errorf("LastIPInSubnet() got = %v, want %v", got, test.want)
+ }
+ })
+ }
+}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-02-15 11:50:24 +0000