ba4a6bbe02
Microsoft has updated the golang Azure SDK significantly. Update the azure storage driver to use the new SDK. Add support for client secret and MSI authentication schemes in addition to shared key authentication. Implement rootDirectory support for the azure storage driver to mirror the S3 driver. Signed-off-by: Kirat Singh <kirat.singh@beacon.io> Co-authored-by: Cory Snider <corhere@gmail.com>
90 lines
2.3 KiB
Go
90 lines
2.3 KiB
Go
// Copyright 2016 Google Inc. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package uuid
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import (
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"sync"
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)
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var (
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nodeMu sync.Mutex
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ifname string // name of interface being used
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nodeID [6]byte // hardware for version 1 UUIDs
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zeroID [6]byte // nodeID with only 0's
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)
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// NodeInterface returns the name of the interface from which the NodeID was
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// derived. The interface "user" is returned if the NodeID was set by
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// SetNodeID.
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func NodeInterface() string {
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defer nodeMu.Unlock()
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nodeMu.Lock()
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return ifname
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}
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// SetNodeInterface selects the hardware address to be used for Version 1 UUIDs.
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// If name is "" then the first usable interface found will be used or a random
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// Node ID will be generated. If a named interface cannot be found then false
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// is returned.
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//
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// SetNodeInterface never fails when name is "".
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func SetNodeInterface(name string) bool {
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defer nodeMu.Unlock()
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nodeMu.Lock()
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return setNodeInterface(name)
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}
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func setNodeInterface(name string) bool {
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iname, addr := getHardwareInterface(name) // null implementation for js
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if iname != "" && addr != nil {
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ifname = iname
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copy(nodeID[:], addr)
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return true
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}
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// We found no interfaces with a valid hardware address. If name
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// does not specify a specific interface generate a random Node ID
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// (section 4.1.6)
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if name == "" {
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ifname = "random"
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randomBits(nodeID[:])
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return true
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}
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return false
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}
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// NodeID returns a slice of a copy of the current Node ID, setting the Node ID
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// if not already set.
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func NodeID() []byte {
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defer nodeMu.Unlock()
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nodeMu.Lock()
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if nodeID == zeroID {
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setNodeInterface("")
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}
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nid := nodeID
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return nid[:]
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}
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// SetNodeID sets the Node ID to be used for Version 1 UUIDs. The first 6 bytes
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// of id are used. If id is less than 6 bytes then false is returned and the
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// Node ID is not set.
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func SetNodeID(id []byte) bool {
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if len(id) < 6 {
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return false
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}
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defer nodeMu.Unlock()
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nodeMu.Lock()
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copy(nodeID[:], id)
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ifname = "user"
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return true
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}
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// NodeID returns the 6 byte node id encoded in uuid. It returns nil if uuid is
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// not valid. The NodeID is only well defined for version 1 and 2 UUIDs.
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func (uuid UUID) NodeID() []byte {
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var node [6]byte
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copy(node[:], uuid[10:])
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return node[:]
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}
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