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added vmware metadata provider (#3526)

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cloud-init data from vmware guest info as it described in the link below
https://github.com/vmware/cloud-init-vmware-guestinfo

Signed-off-by: Birol Bilgin <birolbilgin@gmail.com>
Co-authored-by: Birol Bilgin <birol.bilgin@basefarm.com>
This commit is contained in:
Birol Bilgin 2023-03-04 18:50:46 +01:00 committed by GitHub
parent 7d9f1f03a8
commit d4a8e284f6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
19 changed files with 1600 additions and 2 deletions
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9
pkg/metadata/main.go
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@ -77,7 +77,7 @@ func main() {
log.SetLevel(log.DebugLevel) log.SetLevel(log.DebugLevel)
} }
providers := []string{"aws", "gcp", "hetzner", "openstack", "scaleway", "vultr", "digitalocean", "packet", "metaldata", "cdrom"} providers := []string{"aws", "gcp", "hetzner", "openstack", "scaleway", "vultr", "digitalocean", "packet", "metaldata", "vmware", "cdrom"}
args := flag.Args() args := flag.Args()
if len(args) > 0 { if len(args) > 0 {
providers = args providers = args
@ -102,8 +102,13 @@ func main() {
netProviders = append(netProviders, NewDigitalOcean()) netProviders = append(netProviders, NewDigitalOcean())
case p == "metaldata": case p == "metaldata":
netProviders = append(netProviders, NewMetalData()) netProviders = append(netProviders, NewMetalData())
case p == "vmware":
vmw := NewVMware()
if vmw != nil {
cdromProviders = append(cdromProviders, vmw)
}
case p == "cdrom": case p == "cdrom":
cdromProviders = ListCDROMs() cdromProviders = append(cdromProviders, ListCDROMs()...)
case strings.HasPrefix(p, "file="): case strings.HasPrefix(p, "file="):
fileProviders = append(fileProviders, fileProvider(p[5:])) fileProviders = append(fileProviders, fileProvider(p[5:]))
default: default:

137
pkg/metadata/provider_vmware.go Normal file
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@ -0,0 +1,137 @@
//go:build linux && 386 && amd64
package main
import (
"compress/gzip"
"encoding/base64"
"fmt"
"io/ioutil"
"path"
"strings"
log "github.com/sirupsen/logrus"
"github.com/vmware/vmw-guestinfo/rpcvmx"
"github.com/vmware/vmw-guestinfo/vmcheck"
)
const (
guestMetaData = "guestinfo.metadata"
guestUserData = "guestinfo.userdata"
guestVendorData = "guestinfo.vendordata"
)
// ProviderVMware implements the Provider interface for VMware guestinfo api
type ProviderVMware struct{}
// NewVMware returns a new VMware Provider
func NewVMware() *ProviderVMware {
return &ProviderVMware{}
}
// String returns provider name
func (p *ProviderVMware) String() string {
return "VMWARE"
}
// Probe checks if we are running on VMware and either userdata or metadata is set
func (p *ProviderVMware) Probe() bool {
isVM, err := vmcheck.IsVirtualWorld()
if err != nil || !isVM {
return false
}
md, merr := vmwareGet(guestMetaData)
ud, uerr := vmwareGet(guestUserData)
return ((merr == nil) && len(md) > 1 && string(md) != "---") || ((uerr == nil) && len(ud) > 1 && string(ud) != "---")
}
// Extract gets the host specific metadata, generic userdata and if set vendordata
// This function returns error if it fails to write metadata or vendordata to disk
func (p *ProviderVMware) Extract() ([]byte, error) {
// Get vendor data, if empty do not fail
vendorData, err := vmwareGet(guestVendorData)
if err != nil {
log.Debugf("VMWare: Failed to get vendordata: %v", err)
} else {
err = ioutil.WriteFile(path.Join(ConfigPath, "vendordata"), vendorData, 0644)
if err != nil {
log.Debugf("VMWare: Failed to write vendordata: %v", err)
}
}
// Get metadata
metaData, err := vmwareGet(guestMetaData)
if err != nil {
log.Printf("VMWare: Failed to get metadata: %v", err)
} else {
err = ioutil.WriteFile(path.Join(ConfigPath, "metadata"), metaData, 0644)
if err != nil {
return nil, fmt.Errorf("VMWare: Failed to write metadata: %s", err)
}
}
// Get userdata
userData, err := vmwareGet(guestUserData)
if err != nil {
log.Printf("VMware: Failed to get userdata: %v", err)
// This is not an error
return nil, nil
}
return userData, nil
}
// vmwareGet gets and extracts the guestinfo data
func vmwareGet(name string) ([]byte, error) {
config := rpcvmx.NewConfig()
// get the gusest info value
out, err := config.String(name, "")
if err != nil {
log.Debugf("Getting guest info %s failed: error %s", name, err)
return nil, err
}
enc, err := config.String(name+".encoding", "")
if err != nil {
log.Debugf("Getting guest info %s.encoding failed: error %s", name, err)
return nil, err
}
switch strings.TrimSuffix(enc, "\n") {
case " ":
return []byte(strings.TrimSuffix(out, "\n")), nil
case "base64":
r := base64.NewDecoder(base64.StdEncoding, strings.NewReader(out))
dst, err := ioutil.ReadAll(r)
if err != nil {
log.Debugf("Decoding base64 of '%s' failed %v", name, err)
return nil, err
}
return dst, nil
case "gzip+base64":
r := base64.NewDecoder(base64.StdEncoding, strings.NewReader(out))
zr, err := gzip.NewReader(r)
if err != nil {
log.Debugf("New gzip reader from '%s' failed %v", name, err)
return nil, err
}
dst, err := ioutil.ReadAll(zr)
if err != nil {
log.Debugf("Read '%s' failed %v", name, err)
return nil, err
}
return dst, nil
default:
return nil, fmt.Errorf("Unknown encoding %s", string(enc))
}
}

27
pkg/metadata/provider_vmware_unsupported.go Normal file
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@ -0,0 +1,27 @@
//go:build !(linux && 386 && amd64)
package main
// ProviderVMware implements VMware provider interface for unsupported architectures
type ProviderVMware struct{}
// NewVMware returns a new VMware Provider
func NewVMware() *ProviderVMware {
return nil
}
// String implements provider interface
func (p *ProviderVMware) String() string {
return ""
}
// Probe implements provider interface
func (p *ProviderVMware) Probe() bool {
return false
}
// Extract implements provider interface
func (p *ProviderVMware) Extract() ([]byte, error) {
// Get vendor data, if empty do not fail
return nil, nil
}

202
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/LICENSE generated vendored Normal file
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@ -0,0 +1,202 @@
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Copyright 2017 VMware, Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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107
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/bdoor/bdoor.go generated vendored Normal file
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@ -0,0 +1,107 @@
// Copyright 2016-2017 VMware, Inc. All Rights Reserved.
//
// Licensed 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.
//go:generate go run asm.go -out bdoor_amd64.s -arch amd64
//go:generate go run asm.go -out bdoor_386.s -arch 386
package bdoor
const (
BackdoorPort = uint16(0x5658)
BackdoorHighBWPort = uint16(0x5659)
CommandGetVersion = uint32(10)
CommandMessage = uint16(0x1e)
CommandHighBWMessage = uint16(0)
CommandFlagCookie = uint32(0x80000000)
)
func (p *BackdoorProto) InOut() *BackdoorProto {
p.DX.AsUInt32().Low = BackdoorPort
p.AX.SetValue(BackdoorMagic)
retax, retbx, retcx, retdx, retsi, retdi, retbp := bdoor_inout(
p.AX.Value(),
p.BX.Value(),
p.CX.Value(),
p.DX.Value(),
p.SI.Value(),
p.DI.Value(),
p.BP.Value(),
)
ret := &BackdoorProto{}
ret.AX.SetValue(retax)
ret.BX.SetValue(retbx)
ret.CX.SetValue(retcx)
ret.DX.SetValue(retdx)
ret.SI.SetValue(retsi)
ret.DI.SetValue(retdi)
ret.BP.SetValue(retbp)
return ret
}
func (p *BackdoorProto) HighBandwidthOut() *BackdoorProto {
p.DX.AsUInt32().Low = BackdoorHighBWPort
p.AX.SetValue(BackdoorMagic)
retax, retbx, retcx, retdx, retsi, retdi, retbp := bdoor_hbout(
p.AX.Value(),
p.BX.Value(),
p.CX.Value(),
p.DX.Value(),
p.SI.Value(),
p.DI.Value(),
p.BP.Value(),
)
ret := &BackdoorProto{}
ret.AX.SetValue(retax)
ret.BX.SetValue(retbx)
ret.CX.SetValue(retcx)
ret.DX.SetValue(retdx)
ret.SI.SetValue(retsi)
ret.DI.SetValue(retdi)
ret.BP.SetValue(retbp)
return ret
}
func (p *BackdoorProto) HighBandwidthIn() *BackdoorProto {
p.DX.AsUInt32().Low = BackdoorHighBWPort
p.AX.SetValue(BackdoorMagic)
retax, retbx, retcx, retdx, retsi, retdi, retbp := bdoor_hbin(
p.AX.Value(),
p.BX.Value(),
p.CX.Value(),
p.DX.Value(),
p.SI.Value(),
p.DI.Value(),
p.BP.Value(),
)
ret := &BackdoorProto{}
ret.AX.SetValue(retax)
ret.BX.SetValue(retbx)
ret.CX.SetValue(retcx)
ret.DX.SetValue(retdx)
ret.SI.SetValue(retsi)
ret.DI.SetValue(retdi)
ret.BP.SetValue(retbp)
return ret
}

48
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/bdoor/bdoor_386.go generated vendored Normal file
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@ -0,0 +1,48 @@
// Copyright 2016-2017 VMware, Inc. All Rights Reserved.
//
// Licensed 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 bdoor
const (
BackdoorMagic = uint32(0x564D5868)
)
type BackdoorProto struct {
// typedef union {
// struct {
// DECLARE_REG_NAMED_STRUCT(ax);
// size_t size; /* Register bx. */
// DECLARE_REG_NAMED_STRUCT(cx);
// DECLARE_REG_NAMED_STRUCT(dx);
// DECLARE_REG_NAMED_STRUCT(si);
// DECLARE_REG_NAMED_STRUCT(di);
// } in;
// struct {
// DECLARE_REG_NAMED_STRUCT(ax);
// DECLARE_REG_NAMED_STRUCT(bx);
// DECLARE_REG_NAMED_STRUCT(cx);
// DECLARE_REG_NAMED_STRUCT(dx);
// DECLARE_REG_NAMED_STRUCT(si);
// DECLARE_REG_NAMED_STRUCT(di);
// } out;
// } proto;
AX, BX, CX, DX, SI, DI, BP UInt32
size uint32
}
func bdoor_inout(ax, bx, cx, dx, si, di, bp uint32) (retax, retbx, retcx, retdx, retsi, retdi, retbp uint32)
func bdoor_hbout(ax, bx, cx, dx, si, di, bp uint32) (retax, retbx, retcx, retdx, retsi, retdi, retbp uint32)
func bdoor_hbin(ax, bx, cx, dx, si, di, bp uint32) (retax, retbx, retcx, retdx, retsi, retdi, retbp uint32)
func bdoor_inout_test(ax, bx, cx, dx, si, di, bp uint32) (retax, retbx, retcx, retdx, retsi, retdi, retbp uint32)

86
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/bdoor/bdoor_386.s generated vendored Normal file
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@ -0,0 +1,86 @@
// Code generated by command: go run asm.go -out bdoor_386.s -arch 386. DO NOT EDIT.
// +build gc
#include "textflag.h"
// func bdoor_inout(ax uint32, bx uint32, cx uint32, dx uint32, si uint32, di uint32, bp uint32) (retax uint32, retbx uint32, retcx uint32, retdx uint32, retsi uint32, retdi uint32, retbp uint32)
TEXT ·bdoor_inout(SB), NOSPLIT|WRAPPER, $0-56
MOVL ax+0(FP), AX
MOVL bx+4(FP), BX
MOVL cx+8(FP), CX
MOVL dx+12(FP), DX
MOVL si+16(FP), SI
MOVL di+20(FP), DI
MOVL bp+24(FP), BP
// IN to DX from AX
INL
MOVL AX, retax+28(FP)
MOVL BX, retbx+32(FP)
MOVL CX, retcx+36(FP)
MOVL DX, retdx+40(FP)
MOVL SI, retsi+44(FP)
MOVL DI, retdi+48(FP)
MOVL BP, retbp+52(FP)
RET
// func bdoor_hbout(ax uint32, bx uint32, cx uint32, dx uint32, si uint32, di uint32, bp uint32) (retax uint32, retbx uint32, retcx uint32, retdx uint32, retsi uint32, retdi uint32, retbp uint32)
TEXT ·bdoor_hbout(SB), NOSPLIT|WRAPPER, $0-56
MOVL ax+0(FP), AX
MOVL bx+4(FP), BX
MOVL cx+8(FP), CX
MOVL dx+12(FP), DX
MOVL si+16(FP), SI
MOVL di+20(FP), DI
MOVL bp+24(FP), BP
CLD
REP
OUTSB
MOVL AX, retax+28(FP)
MOVL BX, retbx+32(FP)
MOVL CX, retcx+36(FP)
MOVL DX, retdx+40(FP)
MOVL SI, retsi+44(FP)
MOVL DI, retdi+48(FP)
MOVL BP, retbp+52(FP)
RET
// func bdoor_hbin(ax uint32, bx uint32, cx uint32, dx uint32, si uint32, di uint32, bp uint32) (retax uint32, retbx uint32, retcx uint32, retdx uint32, retsi uint32, retdi uint32, retbp uint32)
TEXT ·bdoor_hbin(SB), NOSPLIT|WRAPPER, $0-56
MOVL ax+0(FP), AX
MOVL bx+4(FP), BX
MOVL cx+8(FP), CX
MOVL dx+12(FP), DX
MOVL si+16(FP), SI
MOVL di+20(FP), DI
MOVL bp+24(FP), BP
CLD
REP
INSB
MOVL AX, retax+28(FP)
MOVL BX, retbx+32(FP)
MOVL CX, retcx+36(FP)
MOVL DX, retdx+40(FP)
MOVL SI, retsi+44(FP)
MOVL DI, retdi+48(FP)
MOVL BP, retbp+52(FP)
RET
// func bdoor_inout_test(ax uint32, bx uint32, cx uint32, dx uint32, si uint32, di uint32, bp uint32) (retax uint32, retbx uint32, retcx uint32, retdx uint32, retsi uint32, retdi uint32, retbp uint32)
TEXT ·bdoor_inout_test(SB), NOSPLIT|WRAPPER, $0-56
MOVL ax+0(FP), AX
MOVL bx+4(FP), BX
MOVL cx+8(FP), CX
MOVL dx+12(FP), DX
MOVL si+16(FP), SI
MOVL di+20(FP), DI
MOVL bp+24(FP), BP
MOVL AX, retax+28(FP)
MOVL BX, retbx+32(FP)
MOVL CX, retcx+36(FP)
MOVL DX, retdx+40(FP)
MOVL SI, retsi+44(FP)
MOVL DI, retdi+48(FP)
MOVL BP, retbp+52(FP)
RET

48
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/bdoor/bdoor_amd64.go generated vendored Normal file
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@ -0,0 +1,48 @@
// Copyright 2016-2017 VMware, Inc. All Rights Reserved.
//
// Licensed 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 bdoor
const (
BackdoorMagic = uint64(0x564D5868)
)
type BackdoorProto struct {
// typedef union {
// struct {
// DECLARE_REG_NAMED_STRUCT(ax);
// size_t size; /* Register bx. */
// DECLARE_REG_NAMED_STRUCT(cx);
// DECLARE_REG_NAMED_STRUCT(dx);
// DECLARE_REG_NAMED_STRUCT(si);
// DECLARE_REG_NAMED_STRUCT(di);
// } in;
// struct {
// DECLARE_REG_NAMED_STRUCT(ax);
// DECLARE_REG_NAMED_STRUCT(bx);
// DECLARE_REG_NAMED_STRUCT(cx);
// DECLARE_REG_NAMED_STRUCT(dx);
// DECLARE_REG_NAMED_STRUCT(si);
// DECLARE_REG_NAMED_STRUCT(di);
// } out;
// } proto;
AX, BX, CX, DX, SI, DI, BP UInt64
size uint32
}
func bdoor_inout(ax, bx, cx, dx, si, di, bp uint64) (retax, retbx, retcx, retdx, retsi, retdi, retbp uint64)
func bdoor_hbout(ax, bx, cx, dx, si, di, bp uint64) (retax, retbx, retcx, retdx, retsi, retdi, retbp uint64)
func bdoor_hbin(ax, bx, cx, dx, si, di, bp uint64) (retax, retbx, retcx, retdx, retsi, retdi, retbp uint64)
func bdoor_inout_test(ax, bx, cx, dx, si, di, bp uint64) (retax, retbx, retcx, retdx, retsi, retdi, retbp uint64)

86
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/bdoor/bdoor_amd64.s generated vendored Normal file
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// Code generated by command: go run asm.go -out bdoor_amd64.s -arch amd64. DO NOT EDIT.
// +build gc
#include "textflag.h"
// func bdoor_inout(ax uint64, bx uint64, cx uint64, dx uint64, si uint64, di uint64, bp uint64) (retax uint64, retbx uint64, retcx uint64, retdx uint64, retsi uint64, retdi uint64, retbp uint64)
TEXT ·bdoor_inout(SB), NOSPLIT|WRAPPER, $0-112
MOVQ ax+0(FP), AX
MOVQ bx+8(FP), BX
MOVQ cx+16(FP), CX
MOVQ dx+24(FP), DX
MOVQ si+32(FP), SI
MOVQ di+40(FP), DI
MOVQ bp+48(FP), BP
// IN to DX from AX
INL
MOVQ AX, retax+56(FP)
MOVQ BX, retbx+64(FP)
MOVQ CX, retcx+72(FP)
MOVQ DX, retdx+80(FP)
MOVQ SI, retsi+88(FP)
MOVQ DI, retdi+96(FP)
MOVQ BP, retbp+104(FP)
RET
// func bdoor_hbout(ax uint64, bx uint64, cx uint64, dx uint64, si uint64, di uint64, bp uint64) (retax uint64, retbx uint64, retcx uint64, retdx uint64, retsi uint64, retdi uint64, retbp uint64)
TEXT ·bdoor_hbout(SB), NOSPLIT|WRAPPER, $0-112
MOVQ ax+0(FP), AX
MOVQ bx+8(FP), BX
MOVQ cx+16(FP), CX
MOVQ dx+24(FP), DX
MOVQ si+32(FP), SI
MOVQ di+40(FP), DI
MOVQ bp+48(FP), BP
CLD
REP
OUTSB
MOVQ AX, retax+56(FP)
MOVQ BX, retbx+64(FP)
MOVQ CX, retcx+72(FP)
MOVQ DX, retdx+80(FP)
MOVQ SI, retsi+88(FP)
MOVQ DI, retdi+96(FP)
MOVQ BP, retbp+104(FP)
RET
// func bdoor_hbin(ax uint64, bx uint64, cx uint64, dx uint64, si uint64, di uint64, bp uint64) (retax uint64, retbx uint64, retcx uint64, retdx uint64, retsi uint64, retdi uint64, retbp uint64)
TEXT ·bdoor_hbin(SB), NOSPLIT|WRAPPER, $0-112
MOVQ ax+0(FP), AX
MOVQ bx+8(FP), BX
MOVQ cx+16(FP), CX
MOVQ dx+24(FP), DX
MOVQ si+32(FP), SI
MOVQ di+40(FP), DI
MOVQ bp+48(FP), BP
CLD
REP
INSB
MOVQ AX, retax+56(FP)
MOVQ BX, retbx+64(FP)
MOVQ CX, retcx+72(FP)
MOVQ DX, retdx+80(FP)
MOVQ SI, retsi+88(FP)
MOVQ DI, retdi+96(FP)
MOVQ BP, retbp+104(FP)
RET
// func bdoor_inout_test(ax uint64, bx uint64, cx uint64, dx uint64, si uint64, di uint64, bp uint64) (retax uint64, retbx uint64, retcx uint64, retdx uint64, retsi uint64, retdi uint64, retbp uint64)
TEXT ·bdoor_inout_test(SB), NOSPLIT|WRAPPER, $0-112
MOVQ ax+0(FP), AX
MOVQ bx+8(FP), BX
MOVQ cx+16(FP), CX
MOVQ dx+24(FP), DX
MOVQ si+32(FP), SI
MOVQ di+40(FP), DI
MOVQ bp+48(FP), BP
MOVQ AX, retax+56(FP)
MOVQ BX, retbx+64(FP)
MOVQ CX, retcx+72(FP)
MOVQ DX, retdx+80(FP)
MOVQ SI, retsi+88(FP)
MOVQ DI, retdi+96(FP)
MOVQ BP, retbp+104(FP)
RET

77
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/bdoor/word.go generated vendored Normal file
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// Copyright 2016-2017 VMware, Inc. All Rights Reserved.
//
// Licensed 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 bdoor
import "unsafe"
type UInt32 struct {
High uint16
Low uint16
}
func (u *UInt32) Word() uint32 {
return uint32(u.High)<<16 + uint32(u.Low)
}
func (u *UInt32) SetWord(w uint32) {
u.High = uint16(w >> 16)
u.Low = uint16(w)
}
func (u *UInt32) AsUInt32() *UInt32 {
return u
}
func (u *UInt32) Value() uint32 {
return u.Word()
}
func (u *UInt32) SetValue(val uint32) {
u.SetWord(val)
}
func (u *UInt32) SetPointer(p unsafe.Pointer) {
u.SetWord(uint32(uintptr(p)))
}
type UInt64 struct {
High UInt32
Low UInt32
}
func (u *UInt64) Quad() uint64 {
return uint64(u.High.Word())<<32 + uint64(u.Low.Word())
}
func (u *UInt64) SetQuad(w uint64) {
u.High.SetWord(uint32(w >> 32))
u.Low.SetWord(uint32(w))
}
func (u *UInt64) AsUInt32() *UInt32 {
return &u.Low
}
func (u *UInt64) Value() uint64 {
return u.Quad()
}
func (u *UInt64) SetValue(val uint64) {
u.SetQuad(val)
}
func (u *UInt64) SetPointer(p unsafe.Pointer) {
u.SetQuad(uint64(uintptr(p)))
}

61
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/message/log.go generated vendored Normal file
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// Copyright 2016 VMware, Inc. All Rights Reserved.
//
// Licensed 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 message
import "log"
var DefaultLogger Logger
type Logger interface {
Errorf(format string, args ...interface{})
Debugf(format string, args ...interface{})
Infof(format string, args ...interface{})
}
func init() {
DefaultLogger = &logger{}
}
type logger struct {
DebugLevel bool
}
func (l *logger) Errorf(format string, args ...interface{}) {
log.Printf(format, args...)
}
func (l *logger) Debugf(format string, args ...interface{}) {
if !l.DebugLevel {
return
}
log.Printf(format, args...)
}
func (l *logger) Infof(format string, args ...interface{}) {
log.Printf(format, args...)
}
func Errorf(format string, args ...interface{}) {
DefaultLogger.Errorf(format, args...)
}
func Debugf(format string, args ...interface{}) {
DefaultLogger.Debugf(format, args...)
}
func Infof(format string, args ...interface{}) {
DefaultLogger.Infof(format, args...)
}

334
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/message/message.go generated vendored Normal file
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// Copyright 2016-2017 VMware, Inc. All Rights Reserved.
//
// Licensed 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 message
import (
"bytes"
"encoding/binary"
"errors"
"unsafe"
"github.com/vmware/vmw-guestinfo/bdoor"
)
const (
messageTypeOpen = iota
messageTypeSendSize
messageTypeSendPayload
messageTypeReceiveSize
messageTypeReceivePayload
messageTypeReceiveStatus
messageTypeClose
messageStatusFail = uint16(0x0000)
messageStatusSuccess = uint16(0x0001)
messageStatusDoRecieve = uint16(0x0002)
messageStatusCheckPoint = uint16(0x0010)
messageStatusHighBW = uint16(0x0080)
)
var (
// ErrChannelOpen represents a failure to open a channel
ErrChannelOpen = errors.New("could not open channel")
// ErrChannelClose represents a failure to close a channel
ErrChannelClose = errors.New("could not close channel")
// ErrRpciSend represents a failure to send a message
ErrRpciSend = errors.New("unable to send RPCI command")
// ErrRpciReceive represents a failure to receive a message
ErrRpciReceive = errors.New("unable to receive RPCI command result")
)
type Channel struct {
id uint16
forceLowBW bool
buf []byte
cookie bdoor.UInt64
}
// NewChannel opens a new Channel
func NewChannel(proto uint32) (*Channel, error) {
flags := bdoor.CommandFlagCookie
retry:
bp := &bdoor.BackdoorProto{}
bp.BX.AsUInt32().SetWord(proto | flags)
bp.CX.AsUInt32().High = messageTypeOpen
bp.CX.AsUInt32().Low = bdoor.CommandMessage
out := bp.InOut()
if (out.CX.AsUInt32().High & messageStatusSuccess) == 0 {
if flags != 0 {
flags = 0
goto retry
}
Errorf("Message: Unable to open communication channel")
return nil, ErrChannelOpen
}
ch := &Channel{}
ch.id = out.DX.AsUInt32().High
ch.cookie.High.SetWord(out.SI.AsUInt32().Word())
ch.cookie.Low.SetWord(out.DI.AsUInt32().Word())
Debugf("Opened channel %d", ch.id)
return ch, nil
}
func (c *Channel) Close() error {
bp := &bdoor.BackdoorProto{}
bp.CX.AsUInt32().High = messageTypeClose
bp.CX.AsUInt32().Low = bdoor.CommandMessage
bp.DX.AsUInt32().High = c.id
bp.SI.AsUInt32().SetWord(c.cookie.High.Word())
bp.DI.AsUInt32().SetWord(c.cookie.Low.Word())
out := bp.InOut()
if (out.CX.AsUInt32().High & messageStatusSuccess) == 0 {
Errorf("Message: Unable to close communication channel %d", c.id)
return ErrChannelClose
}
Debugf("Closed channel %d", c.id)
return nil
}
func (c *Channel) Send(buf []byte) error {
retry:
bp := &bdoor.BackdoorProto{}
bp.CX.AsUInt32().High = messageTypeSendSize
bp.CX.AsUInt32().Low = bdoor.CommandMessage
bp.DX.AsUInt32().High = c.id
bp.SI.AsUInt32().SetWord(c.cookie.High.Word())
bp.DI.AsUInt32().SetWord(c.cookie.Low.Word())
bp.BX.AsUInt32().SetWord(uint32(len(buf)))
// send the size
out := bp.InOut()
if (out.CX.AsUInt32().High & messageStatusSuccess) == 0 {
Errorf("Message: Unable to send a message over the communication channel %d", c.id)
return ErrRpciSend
}
// size of buf 0 is fine, just return
if len(buf) == 0 {
return nil
}
if !c.forceLowBW && (out.CX.AsUInt32().High&messageStatusHighBW) == messageStatusHighBW {
hbbp := &bdoor.BackdoorProto{}
hbbp.BX.AsUInt32().Low = bdoor.CommandHighBWMessage
hbbp.BX.AsUInt32().High = messageStatusSuccess
hbbp.DX.AsUInt32().High = c.id
hbbp.BP.AsUInt32().SetWord(c.cookie.High.Word())
hbbp.DI.AsUInt32().SetWord(c.cookie.Low.Word())
hbbp.CX.AsUInt32().SetWord(uint32(len(buf)))
hbbp.SI.SetPointer(unsafe.Pointer(&buf[0]))
out := hbbp.HighBandwidthOut()
if (out.BX.AsUInt32().High & messageStatusSuccess) == 0 {
if (out.BX.AsUInt32().High & messageStatusCheckPoint) != 0 {
Debugf("A checkpoint occurred. Retrying the operation")
goto retry
}
Errorf("Message: Unable to send a message over the communication channel %d", c.id)
return ErrRpciSend
}
} else {
bp.CX.AsUInt32().High = messageTypeSendPayload
bbuf := bytes.NewBuffer(buf)
for {
// read 4 bytes at a time
words := bbuf.Next(4)
if len(words) == 0 {
break
}
Debugf("sending %q over %d", string(words), c.id)
switch len(words) {
case 3:
bp.BX.AsUInt32().SetWord(binary.LittleEndian.Uint32([]byte{0x0, words[2], words[1], words[0]}))
case 2:
bp.BX.AsUInt32().SetWord(uint32(binary.LittleEndian.Uint16(words)))
case 1:
bp.BX.AsUInt32().SetWord(uint32(words[0]))
default:
bp.BX.AsUInt32().SetWord(binary.LittleEndian.Uint32(words))
}
out = bp.InOut()
if (out.CX.AsUInt32().High & messageStatusSuccess) == 0 {
Errorf("Message: Unable to send a message over the communication channel %d", c.id)
return ErrRpciSend
}
}
}
return nil
}
func (c *Channel) Receive() ([]byte, error) {
retry:
var err error
bp := &bdoor.BackdoorProto{}
bp.CX.AsUInt32().High = messageTypeReceiveSize
bp.CX.AsUInt32().Low = bdoor.CommandMessage
bp.DX.AsUInt32().High = c.id
bp.SI.AsUInt32().SetWord(c.cookie.High.Word())
bp.DI.AsUInt32().SetWord(c.cookie.Low.Word())
out := bp.InOut()
if (out.CX.AsUInt32().High & messageStatusSuccess) == 0 {
Errorf("Message: Unable to poll for messages over the communication channel %d", c.id)
return nil, ErrRpciReceive
}
if (out.CX.AsUInt32().High & messageStatusDoRecieve) == 0 {
Debugf("No message to retrieve")
return nil, nil
}
// Receive the size.
if out.DX.AsUInt32().High != messageTypeSendSize {
Errorf("Message: Protocol error. Expected a MESSAGE_TYPE_SENDSIZE request from vmware")
return nil, ErrRpciReceive
}
size := out.BX.Value()
var buf []byte
if size != 0 {
if !c.forceLowBW && (out.CX.AsUInt32().High&messageStatusHighBW == messageStatusHighBW) {
buf = make([]byte, size)
hbbp := &bdoor.BackdoorProto{}
hbbp.BX.AsUInt32().Low = bdoor.CommandHighBWMessage
hbbp.BX.AsUInt32().High = messageStatusSuccess
hbbp.DX.AsUInt32().High = c.id
hbbp.SI.AsUInt32().SetWord(c.cookie.High.Word())
hbbp.BP.AsUInt32().SetWord(c.cookie.Low.Word())
hbbp.CX.AsUInt32().SetWord(uint32(len(buf)))
hbbp.DI.SetPointer(unsafe.Pointer(&buf[0]))
out := hbbp.HighBandwidthIn()
if (out.BX.AsUInt32().High & messageStatusSuccess) == 0 {
Errorf("Message: Unable to send a message over the communication channel %d", c.id)
c.reply(messageTypeReceivePayload, messageStatusFail)
return nil, ErrRpciReceive
}
} else {
b := bytes.NewBuffer(make([]byte, 0, size))
for {
if size == 0 {
break
}
bp.CX.AsUInt32().High = messageTypeReceivePayload
bp.BX.AsUInt32().Low = messageStatusSuccess
out = bp.InOut()
if (out.CX.AsUInt32().High & messageStatusSuccess) == 0 {
if (out.CX.AsUInt32().High & messageStatusCheckPoint) != 0 {
Debugf("A checkpoint occurred. Retrying the operation")
goto retry
}
Errorf("Message: Unable to receive a message over the communication channel %d", c.id)
c.reply(messageTypeReceivePayload, messageStatusFail)
return nil, ErrRpciReceive
}
if out.DX.AsUInt32().High != messageTypeSendPayload {
Errorf("Message: Protocol error. Expected a MESSAGE_TYPE_SENDPAYLOAD from vmware")
c.reply(messageTypeReceivePayload, messageStatusFail)
return nil, ErrRpciReceive
}
Debugf("Received %#v", out.BX.AsUInt32().Word())
switch size {
case 1:
err = binary.Write(b, binary.LittleEndian, uint8(out.BX.AsUInt32().Low))
size = size - 1
case 2:
err = binary.Write(b, binary.LittleEndian, uint16(out.BX.AsUInt32().Low))
size = size - 2
case 3:
err = binary.Write(b, binary.LittleEndian, uint16(out.BX.AsUInt32().Low))
if err != nil {
c.reply(messageTypeReceivePayload, messageStatusFail)
return nil, ErrRpciReceive
}
err = binary.Write(b, binary.LittleEndian, uint8(out.BX.AsUInt32().High))
size = size - 3
default:
err = binary.Write(b, binary.LittleEndian, out.BX.AsUInt32().Word())
size = size - 4
}
if err != nil {
Errorf(err.Error())
c.reply(messageTypeReceivePayload, messageStatusFail)
return nil, ErrRpciReceive
}
}
buf = b.Bytes()
}
}
c.reply(messageTypeReceiveStatus, messageStatusSuccess)
return buf, nil
}
func (c *Channel) reply(messageType, messageStatus uint16) {
bp := &bdoor.BackdoorProto{}
bp.BX.AsUInt32().Low = messageStatus
bp.CX.AsUInt32().High = messageType
bp.CX.AsUInt32().Low = bdoor.CommandMessage
bp.DX.AsUInt32().High = c.id
bp.SI.AsUInt32().SetWord(c.cookie.High.Word())
bp.DI.AsUInt32().SetWord(c.cookie.Low.Word())
out := bp.InOut()
/* OUT: Status */
if (out.CX.AsUInt32().High & messageStatusSuccess) == 0 {
if messageStatus == messageStatusSuccess {
Errorf("reply Message: Unable to send a message over the communication channel %d", c.id)
} else {
Errorf("reply Message: Unable to signal an error of reception over the communication channel %d", c.id)
}
}
}

93
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/rpcout/rpcout.go generated vendored Normal file
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// Copyright 2016 VMware, Inc. All Rights Reserved.
//
// Licensed 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 rpcout
import (
"errors"
"fmt"
"github.com/vmware/vmw-guestinfo/message"
)
// ErrRpciFormat represents an invalid result format
var ErrRpciFormat = errors.New("invalid format for RPCI command result")
const rpciProtocolNum uint32 = 0x49435052
// SendOne is a command-oriented wrapper for SendOneRaw
func SendOne(format string, a ...interface{}) (reply []byte, ok bool, err error) {
request := fmt.Sprintf(format, a...)
return SendOneRaw([]byte(request))
}
// SendOneRaw uses a throw-away RPCOut to send a request
func SendOneRaw(request []byte) (reply []byte, ok bool, err error) {
out := &RPCOut{}
if err = out.Start(); err != nil {
return
}
if reply, ok, err = out.Send(request); err != nil {
return
}
if err = out.Stop(); err != nil {
return
}
return
}
// RPCOut is an ougoing connection from the VM to the hypervisor
type RPCOut struct {
channel *message.Channel
}
// Start opens the connection
func (out *RPCOut) Start() error {
channel, err := message.NewChannel(rpciProtocolNum)
if err != nil {
return err
}
out.channel = channel
return nil
}
// Stop closes the connection
func (out *RPCOut) Stop() error {
err := out.channel.Close()
out.channel = nil
return err
}
// Send emits a request and receives a response
func (out *RPCOut) Send(request []byte) (reply []byte, ok bool, err error) {
if err = out.channel.Send(request); err != nil {
return
}
var resp []byte
if resp, err = out.channel.Receive(); err != nil {
return
}
switch string(resp[:2]) {
case "0 ":
reply = resp[2:]
case "1 ":
reply = resp[2:]
ok = true
default:
err = ErrRpciFormat
}
return
}

101
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/rpcvmx/rpcvmx.go generated vendored Normal file
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// Copyright 2016 VMware, Inc. All Rights Reserved.
//
// Licensed 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 rpcvmx
import (
"fmt"
"strconv"
"strings"
"github.com/vmware/vmw-guestinfo/rpcout"
)
const (
prefix = "guestinfo"
)
// Config gives access to the vmx config through the VMware backdoor
type Config struct{}
// NewConfig creates a new Config object
func NewConfig() *Config {
return &Config{}
}
// String returns the config string in the guestinfo.* namespace
func (c *Config) String(key string, defaultValue string) (string, error) {
// add "guestinfo." prefix if missing
if !strings.HasPrefix(key, prefix) {
key = fmt.Sprintf("%s.%s", prefix, key)
}
out, ok, err := rpcout.SendOne("info-get %s", key)
if err != nil {
return "", err
} else if !ok {
return defaultValue, nil
}
return string(out), nil
}
// Bool returns the config boolean in the guestinfo.* namespace
func (c *Config) Bool(key string, defaultValue bool) (bool, error) {
val, err := c.String(key, fmt.Sprintf("%t", defaultValue))
if err != nil {
return false, err
}
res, err := strconv.ParseBool(val)
if err != nil {
return defaultValue, nil
}
return res, nil
}
// Int returns the config integer in the guestinfo.* namespace
func (c *Config) Int(key string, defaultValue int) (int, error) {
val, err := c.String(key, "")
if err != nil {
return 0, err
}
res, err := strconv.Atoi(val)
if err != nil {
return defaultValue, nil
}
return res, nil
}
// SetString sets the guestinfo.KEY with the string VALUE
func (c *Config) SetString(key string, value string) error {
// add "guestinfo." prefix if missing
if !strings.HasPrefix(key, prefix) {
key = fmt.Sprintf("%s.%s", prefix, key)
}
_, _, err := rpcout.SendOne("info-set %s %s", key, value)
if err != nil {
return err
}
return nil
}
// SetString sets the guestinfo.KEY with the bool VALUE
func (c *Config) SetBool(key string, value bool) error {
return c.SetString(key, strconv.FormatBool(value))
}
// SetString sets the guestinfo.KEY with the int VALUE
func (c *Config) SetInt(key string, value int) error {
return c.SetString(key, strconv.Itoa(value))
}

106
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/vmcheck/vmcheck.go generated vendored Normal file
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// Copyright 2016-2017 VMware, Inc. All Rights Reserved.
//
// Licensed 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.
//go:generate go run asm.go -out vmcheck_amd64.s -arch amd64
//go:generate go run asm.go -out vmcheck_386.s -arch 386
package vmcheck
import (
"encoding/binary"
"github.com/vmware/vmw-guestinfo/bdoor"
)
type platform struct {
cpuid func(uint32, uint32) (uint32, uint32, uint32, uint32)
accessPorts func() error
knock func() (bool, error)
}
var defaultPlatform = &platform{
cpuid: cpuid_low,
accessPorts: openPortsAccess,
knock: bdoorKnock,
}
// From https://github.com/intel-go/cpuid/blob/master/cpuidlow_amd64.s
// Get the CPU ID low level leaf values.
func cpuid_low(arg1, arg2 uint32) (eax, ebx, ecx, edx uint32)
func bdoorKnock() (bool, error) {
bp := &bdoor.BackdoorProto{}
bp.CX.AsUInt32().SetWord(bdoor.CommandGetVersion)
out := bp.InOut()
// if there is no device, we get back all 1s
return (0xffffffff != out.AX.AsUInt32().Word()) && (0 != out.AX.AsUInt32().Word()), nil
}
func (p *platform) isVirtualWorld() (bool, error) {
// Test the HV bit is set
if !p.isVirtualCPU() {
return false, nil
}
// Test if backdoor port is available.
return p.hypervisorPortCheck()
}
func (p *platform) isVirtualCPU() bool {
HV := uint32(1 << 31)
_, _, c, _ := p.cpuid(0x1, 0)
if (c & HV) != HV {
return false
}
_, b, c, d := p.cpuid(0x40000000, 0)
buf := make([]byte, 12)
binary.LittleEndian.PutUint32(buf, b)
binary.LittleEndian.PutUint32(buf[4:], c)
binary.LittleEndian.PutUint32(buf[8:], d)
if string(buf) != "VMwareVMware" {
return false
}
return true
}
// hypervisorPortCheck tests the availability of the HV port.
func (p *platform) hypervisorPortCheck() (bool, error) {
// Privilege level 3 to access all ports above 0x3ff
if err := p.accessPorts(); err != nil {
return false, err
}
return p.knock()
}
// IsVirtualCPU checks if the cpu is a virtual CPU running on ESX. It checks for
// the HV bit in the ECX register of the CPUID leaf 0x1. Intel and AMD CPUs
// reserve this bit to indicate if the CPU is running in a HV. See
// https://en.wikipedia.org/wiki/CPUID#EAX.3D1:_Processor_Info_and_Feature_Bits
// for details. If this bit is set, the reserved cpuid levels are used to pass
// information from the HV to the guest. In ESX, this is the repeating string
// "VMwareVMware".
func IsVirtualCPU() bool {
return defaultPlatform.isVirtualCPU()
}
// IsVirtualWorld returns true if running in a VM and the backdoor is available.
func IsVirtualWorld() (bool, error) {
return defaultPlatform.isVirtualWorld()
}

17
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/vmcheck/vmcheck_386.s generated vendored Normal file
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// Code generated by command: go run asm.go -out vmcheck_386.s -arch 386. DO NOT EDIT.
// +build gc
#include "textflag.h"
// func cpuid_low(arg1 uint32, arg2 uint32) (eax uint32, ebx uint32, ecx uint32, edx uint32)
// Requires: CPUID
TEXT ·cpuid_low(SB), NOSPLIT, $0-24
// From https://github.com/intel-go/cpuid/blob/master/cpuidlow_amd64.s
MOVL arg1+0(FP), AX
MOVL arg2+4(FP), CX
CPUID
MOVL AX, eax+8(FP)
MOVL BX, ebx+12(FP)
MOVL CX, ecx+16(FP)
MOVL DX, edx+20(FP)
RET

18
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/vmcheck/vmcheck_amd64.s generated vendored Normal file
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// Code generated by command: go run asm.go -out vmcheck_amd64.s -arch amd64. DO NOT EDIT.
// +build gc
#include "textflag.h"
// func cpuid_low(arg1 uint32, arg2 uint32) (eax uint32, ebx uint32, ecx uint32, edx uint32)
// Requires: CPUID
TEXT ·cpuid_low(SB), NOSPLIT, $0-24
// From https://github.com/intel-go/cpuid/blob/master/cpuidlow_amd64.s
MOVL arg1+0(FP), AX
MOVL arg2+4(FP), CX
CPUID
MOVL AX, eax+8(FP)
MOVL BX, ebx+12(FP)
MOVL CX, ecx+16(FP)
MOVL DX, edx+20(FP)
RET

23
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/vmcheck/vmcheck_general.go generated vendored Normal file
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// Copyright 2016-2017 VMware, Inc. All Rights Reserved.
//
// Licensed 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.
// +build !linux
package vmcheck
// probably not gonna work. Instead, implement a platform-specific variant, and
// add the platform to above build flags
func openPortsAccess() error {
return nil
}

22
pkg/metadata/vendor/github.com/vmware/vmw-guestinfo/vmcheck/vmcheck_linux.go generated vendored Normal file
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// Copyright 2016-2017 VMware, Inc. All Rights Reserved.
//
// Licensed 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 vmcheck
import "syscall"
func openPortsAccess() error {
// Privilege level 3 to access all ports above 0x3ff
return syscall.Iopl(3)
}