podman network create

initial implementation of network create.  we only support bridging
networks with this first pass.

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

1 files changed, 207 insertions, 0 deletions

diff --git a/vendor/github.com/safchain/ethtool/ethtool_cmd.go b/vendor/github.com/safchain/ethtool/ethtool_cmd.go
new file mode 100644
index 000000000..d0c35e476
--- /dev/null
+++ b/vendor/github.com/safchain/ethtool/ethtool_cmd.go
@@ -0,0 +1,207 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+// Package ethtool  aims to provide a library giving a simple access to the
+// Linux SIOCETHTOOL ioctl operations. It can be used to retrieve informations
+// from a network device like statistics, driver related informations or
+// even the peer of a VETH interface.
+package ethtool
+
+import (
+	"math"
+	"reflect"
+	"syscall"
+	"unsafe"
+)
+
+type EthtoolCmd struct { /* ethtool.c: struct ethtool_cmd */
+	Cmd            uint32
+	Supported      uint32
+	Advertising    uint32
+	Speed          uint16
+	Duplex         uint8
+	Port           uint8
+	Phy_address    uint8
+	Transceiver    uint8
+	Autoneg        uint8
+	Mdio_support   uint8
+	Maxtxpkt       uint32
+	Maxrxpkt       uint32
+	Speed_hi       uint16
+	Eth_tp_mdix    uint8
+	Reserved2      uint8
+	Lp_advertising uint32
+	Reserved       [2]uint32
+}
+
+// CmdGet returns the interface settings in the receiver struct
+// and returns speed
+func (ecmd *EthtoolCmd) CmdGet(intf string) (uint32, error) {
+	e, err := NewEthtool()
+	if err != nil {
+		return 0, err
+	}
+	defer e.Close()
+	return e.CmdGet(ecmd, intf)
+}
+
+// CmdSet sets and returns the settings in the receiver struct
+// and returns speed
+func (ecmd *EthtoolCmd) CmdSet(intf string) (uint32, error) {
+	e, err := NewEthtool()
+	if err != nil {
+		return 0, err
+	}
+	defer e.Close()
+	return e.CmdSet(ecmd, intf)
+}
+
+func (f *EthtoolCmd) reflect(retv *map[string]uint64) {
+	val := reflect.ValueOf(f).Elem()
+
+	for i := 0; i < val.NumField(); i++ {
+		valueField := val.Field(i)
+		typeField := val.Type().Field(i)
+
+		t := valueField.Interface()
+		//tt := reflect.TypeOf(t)
+		//fmt.Printf(" t %T %v  tt %T %v\n", t, t, tt, tt)
+		switch t.(type) {
+		case uint32:
+			//fmt.Printf("    t is uint32\n")
+			(*retv)[typeField.Name] = uint64(t.(uint32))
+		case uint16:
+			(*retv)[typeField.Name] = uint64(t.(uint16))
+		case uint8:
+			(*retv)[typeField.Name] = uint64(t.(uint8))
+		case int32:
+			(*retv)[typeField.Name] = uint64(t.(int32))
+		case int16:
+			(*retv)[typeField.Name] = uint64(t.(int16))
+		case int8:
+			(*retv)[typeField.Name] = uint64(t.(int8))
+		default:
+			(*retv)[typeField.Name+"_unknown_type"] = 0
+		}
+
+		//tag := typeField.Tag
+		//fmt.Printf("Field Name: %s,\t Field Value: %v,\t Tag Value: %s\n",
+		//	typeField.Name, valueField.Interface(), tag.Get("tag_name"))
+	}
+}
+
+// CmdGet returns the interface settings in the receiver struct
+// and returns speed
+func (e *Ethtool) CmdGet(ecmd *EthtoolCmd, intf string) (uint32, error) {
+	ecmd.Cmd = ETHTOOL_GSET
+
+	var name [IFNAMSIZ]byte
+	copy(name[:], []byte(intf))
+
+	ifr := ifreq{
+		ifr_name: name,
+		ifr_data: uintptr(unsafe.Pointer(ecmd)),
+	}
+
+	_, _, ep := syscall.Syscall(syscall.SYS_IOCTL, uintptr(e.fd),
+		SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr)))
+	if ep != 0 {
+		return 0, syscall.Errno(ep)
+	}
+
+	var speedval uint32 = (uint32(ecmd.Speed_hi) << 16) |
+		(uint32(ecmd.Speed) & 0xffff)
+	if speedval == math.MaxUint16 {
+		speedval = math.MaxUint32
+	}
+
+	return speedval, nil
+}
+
+// CmdSet sets and returns the settings in the receiver struct
+// and returns speed
+func (e *Ethtool) CmdSet(ecmd *EthtoolCmd, intf string) (uint32, error) {
+	ecmd.Cmd = ETHTOOL_SSET
+
+	var name [IFNAMSIZ]byte
+	copy(name[:], []byte(intf))
+
+	ifr := ifreq{
+		ifr_name: name,
+		ifr_data: uintptr(unsafe.Pointer(ecmd)),
+	}
+
+	_, _, ep := syscall.Syscall(syscall.SYS_IOCTL, uintptr(e.fd),
+		SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr)))
+	if ep != 0 {
+		return 0, syscall.Errno(ep)
+	}
+
+	var speedval uint32 = (uint32(ecmd.Speed_hi) << 16) |
+		(uint32(ecmd.Speed) & 0xffff)
+	if speedval == math.MaxUint16 {
+		speedval = math.MaxUint32
+	}
+
+	return speedval, nil
+}
+
+// CmdGetMapped returns the interface settings in a map
+func (e *Ethtool) CmdGetMapped(intf string) (map[string]uint64, error) {
+	ecmd := EthtoolCmd{
+		Cmd: ETHTOOL_GSET,
+	}
+
+	var name [IFNAMSIZ]byte
+	copy(name[:], []byte(intf))
+
+	ifr := ifreq{
+		ifr_name: name,
+		ifr_data: uintptr(unsafe.Pointer(&ecmd)),
+	}
+
+	_, _, ep := syscall.Syscall(syscall.SYS_IOCTL, uintptr(e.fd),
+		SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr)))
+	if ep != 0 {
+		return nil, syscall.Errno(ep)
+	}
+
+	var result = make(map[string]uint64)
+
+	// ref https://gist.github.com/drewolson/4771479
+	// Golang Reflection Example
+	ecmd.reflect(&result)
+
+	var speedval uint32 = (uint32(ecmd.Speed_hi) << 16) |
+		(uint32(ecmd.Speed) & 0xffff)
+	result["speed"] = uint64(speedval)
+
+	return result, nil
+}
+
+func CmdGetMapped(intf string) (map[string]uint64, error) {
+	e, err := NewEthtool()
+	if err != nil {
+		return nil, err
+	}
+	defer e.Close()
+	return e.CmdGetMapped(intf)
+}