mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-08-06 02:34:03 +00:00
updating microsft/go-winio package to latest version
Signed-off-by: Mark Rossetti <marosset@microsoft.com>
This commit is contained in:
parent
56e17d6d67
commit
4a6bc66e40
2
go.mod
2
go.mod
@ -15,7 +15,7 @@ require (
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github.com/Azure/go-autorest/autorest/adal v0.9.23
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github.com/GoogleCloudPlatform/k8s-cloud-provider v1.18.1-0.20220218231025-f11817397a1b
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github.com/JeffAshton/win_pdh v0.0.0-20161109143554-76bb4ee9f0ab
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github.com/Microsoft/go-winio v0.4.17
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github.com/Microsoft/go-winio v0.6.0
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github.com/Microsoft/hcsshim v0.8.25
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github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e
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github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5
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|
3
go.sum
3
go.sum
@ -82,8 +82,9 @@ github.com/JeffAshton/win_pdh v0.0.0-20161109143554-76bb4ee9f0ab/go.mod h1:3VYc5
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github.com/MakeNowJust/heredoc v1.0.0 h1:cXCdzVdstXyiTqTvfqk9SDHpKNjxuom+DOlyEeQ4pzQ=
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github.com/MakeNowJust/heredoc v1.0.0/go.mod h1:mG5amYoWBHf8vpLOuehzbGGw0EHxpZZ6lCpQ4fNJ8LE=
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github.com/Microsoft/go-winio v0.4.15/go.mod h1:tTuCMEN+UleMWgg9dVx4Hu52b1bJo+59jBh3ajtinzw=
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github.com/Microsoft/go-winio v0.4.17 h1:iT12IBVClFevaf8PuVyi3UmZOVh4OqnaLxDTW2O6j3w=
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github.com/Microsoft/go-winio v0.4.17/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
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github.com/Microsoft/go-winio v0.6.0 h1:slsWYD/zyx7lCXoZVlvQrj0hPTM1HI4+v1sIda2yDvg=
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github.com/Microsoft/go-winio v0.6.0/go.mod h1:cTAf44im0RAYeL23bpB+fzCyDH2MJiz2BO69KH/soAE=
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github.com/Microsoft/hcsshim v0.8.25 h1:fRMwXiwk3qDwc0P05eHnh+y2v07JdtsfQ1fuAc69m9g=
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github.com/Microsoft/hcsshim v0.8.25/go.mod h1:4zegtUJth7lAvFyc6cH2gGQ5B3OFQim01nnU2M8jKDg=
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github.com/NYTimes/gziphandler v1.1.1 h1:ZUDjpQae29j0ryrS0u/B8HZfJBtBQHjqw2rQ2cqUQ3I=
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|
@ -83,7 +83,6 @@
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"sigs.k8s.io/structured-merge-diff/v4"
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],
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"github.com/pkg/errors": [
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"github.com/Microsoft/go-winio",
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"github.com/Microsoft/hcsshim",
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"github.com/aws/aws-sdk-go",
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"github.com/containerd/cgroups",
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|
1
vendor/github.com/Microsoft/go-winio/.gitattributes
generated
vendored
Normal file
1
vendor/github.com/Microsoft/go-winio/.gitattributes
generated
vendored
Normal file
@ -0,0 +1 @@
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* text=auto eol=lf
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9
vendor/github.com/Microsoft/go-winio/.gitignore
generated
vendored
9
vendor/github.com/Microsoft/go-winio/.gitignore
generated
vendored
@ -1 +1,10 @@
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.vscode/
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*.exe
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# testing
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testdata
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# go workspaces
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go.work
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go.work.sum
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144
vendor/github.com/Microsoft/go-winio/.golangci.yml
generated
vendored
Normal file
144
vendor/github.com/Microsoft/go-winio/.golangci.yml
generated
vendored
Normal file
@ -0,0 +1,144 @@
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run:
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skip-dirs:
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- pkg/etw/sample
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linters:
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enable:
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# style
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- containedctx # struct contains a context
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- dupl # duplicate code
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- errname # erorrs are named correctly
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- goconst # strings that should be constants
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- godot # comments end in a period
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- misspell
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- nolintlint # "//nolint" directives are properly explained
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- revive # golint replacement
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- stylecheck # golint replacement, less configurable than revive
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- unconvert # unnecessary conversions
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- wastedassign
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# bugs, performance, unused, etc ...
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- contextcheck # function uses a non-inherited context
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- errorlint # errors not wrapped for 1.13
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- exhaustive # check exhaustiveness of enum switch statements
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- gofmt # files are gofmt'ed
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- gosec # security
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- nestif # deeply nested ifs
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- nilerr # returns nil even with non-nil error
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- prealloc # slices that can be pre-allocated
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- structcheck # unused struct fields
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- unparam # unused function params
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issues:
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exclude-rules:
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# err is very often shadowed in nested scopes
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- linters:
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- govet
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text: '^shadow: declaration of "err" shadows declaration'
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# ignore long lines for skip autogen directives
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- linters:
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- revive
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text: "^line-length-limit: "
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source: "^//(go:generate|sys) "
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# allow unjustified ignores of error checks in defer statements
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- linters:
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- nolintlint
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text: "^directive `//nolint:errcheck` should provide explanation"
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source: '^\s*defer '
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# allow unjustified ignores of error lints for io.EOF
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- linters:
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- nolintlint
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text: "^directive `//nolint:errorlint` should provide explanation"
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source: '[=|!]= io.EOF'
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linters-settings:
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govet:
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enable-all: true
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disable:
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# struct order is often for Win32 compat
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# also, ignore pointer bytes/GC issues for now until performance becomes an issue
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- fieldalignment
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check-shadowing: true
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nolintlint:
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allow-leading-space: false
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require-explanation: true
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require-specific: true
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revive:
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# revive is more configurable than static check, so likely the preferred alternative to static-check
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# (once the perf issue is solved: https://github.com/golangci/golangci-lint/issues/2997)
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enable-all-rules:
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true
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# https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md
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rules:
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# rules with required arguments
|
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- name: argument-limit
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disabled: true
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- name: banned-characters
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disabled: true
|
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- name: cognitive-complexity
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disabled: true
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- name: cyclomatic
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disabled: true
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- name: file-header
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disabled: true
|
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- name: function-length
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disabled: true
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- name: function-result-limit
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disabled: true
|
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- name: max-public-structs
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disabled: true
|
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# geneally annoying rules
|
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- name: add-constant # complains about any and all strings and integers
|
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disabled: true
|
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- name: confusing-naming # we frequently use "Foo()" and "foo()" together
|
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disabled: true
|
||||
- name: flag-parameter # excessive, and a common idiom we use
|
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disabled: true
|
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# general config
|
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- name: line-length-limit
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arguments:
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- 140
|
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- name: var-naming
|
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arguments:
|
||||
- []
|
||||
- - CID
|
||||
- CRI
|
||||
- CTRD
|
||||
- DACL
|
||||
- DLL
|
||||
- DOS
|
||||
- ETW
|
||||
- FSCTL
|
||||
- GCS
|
||||
- GMSA
|
||||
- HCS
|
||||
- HV
|
||||
- IO
|
||||
- LCOW
|
||||
- LDAP
|
||||
- LPAC
|
||||
- LTSC
|
||||
- MMIO
|
||||
- NT
|
||||
- OCI
|
||||
- PMEM
|
||||
- PWSH
|
||||
- RX
|
||||
- SACl
|
||||
- SID
|
||||
- SMB
|
||||
- TX
|
||||
- VHD
|
||||
- VHDX
|
||||
- VMID
|
||||
- VPCI
|
||||
- WCOW
|
||||
- WIM
|
||||
stylecheck:
|
||||
checks:
|
||||
- "all"
|
||||
- "-ST1003" # use revive's var naming
|
85
vendor/github.com/Microsoft/go-winio/README.md
generated
vendored
85
vendor/github.com/Microsoft/go-winio/README.md
generated
vendored
@ -1,4 +1,4 @@
|
||||
# go-winio
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||||
# go-winio [](https://github.com/microsoft/go-winio/actions/workflows/ci.yml)
|
||||
|
||||
This repository contains utilities for efficiently performing Win32 IO operations in
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Go. Currently, this is focused on accessing named pipes and other file handles, and
|
||||
@ -11,12 +11,79 @@ package.
|
||||
|
||||
Please see the LICENSE file for licensing information.
|
||||
|
||||
This project has adopted the [Microsoft Open Source Code of
|
||||
Conduct](https://opensource.microsoft.com/codeofconduct/). For more information
|
||||
see the [Code of Conduct
|
||||
FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact
|
||||
[opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional
|
||||
questions or comments.
|
||||
## Contributing
|
||||
|
||||
Thanks to natefinch for the inspiration for this library. See https://github.com/natefinch/npipe
|
||||
for another named pipe implementation.
|
||||
This project welcomes contributions and suggestions.
|
||||
Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that
|
||||
you have the right to, and actually do, grant us the rights to use your contribution.
|
||||
For details, visit [Microsoft CLA](https://cla.microsoft.com).
|
||||
|
||||
When you submit a pull request, a CLA-bot will automatically determine whether you need to
|
||||
provide a CLA and decorate the PR appropriately (e.g., label, comment).
|
||||
Simply follow the instructions provided by the bot.
|
||||
You will only need to do this once across all repos using our CLA.
|
||||
|
||||
Additionally, the pull request pipeline requires the following steps to be performed before
|
||||
mergining.
|
||||
|
||||
### Code Sign-Off
|
||||
|
||||
We require that contributors sign their commits using [`git commit --signoff`][git-commit-s]
|
||||
to certify they either authored the work themselves or otherwise have permission to use it in this project.
|
||||
|
||||
A range of commits can be signed off using [`git rebase --signoff`][git-rebase-s].
|
||||
|
||||
Please see [the developer certificate](https://developercertificate.org) for more info,
|
||||
as well as to make sure that you can attest to the rules listed.
|
||||
Our CI uses the DCO Github app to ensure that all commits in a given PR are signed-off.
|
||||
|
||||
### Linting
|
||||
|
||||
Code must pass a linting stage, which uses [`golangci-lint`][lint].
|
||||
The linting settings are stored in [`.golangci.yaml`](./.golangci.yaml), and can be run
|
||||
automatically with VSCode by adding the following to your workspace or folder settings:
|
||||
|
||||
```json
|
||||
"go.lintTool": "golangci-lint",
|
||||
"go.lintOnSave": "package",
|
||||
```
|
||||
|
||||
Additional editor [integrations options are also available][lint-ide].
|
||||
|
||||
Alternatively, `golangci-lint` can be [installed locally][lint-install] and run from the repo root:
|
||||
|
||||
```shell
|
||||
# use . or specify a path to only lint a package
|
||||
# to show all lint errors, use flags "--max-issues-per-linter=0 --max-same-issues=0"
|
||||
> golangci-lint run ./...
|
||||
```
|
||||
|
||||
### Go Generate
|
||||
|
||||
The pipeline checks that auto-generated code, via `go generate`, are up to date.
|
||||
|
||||
This can be done for the entire repo:
|
||||
|
||||
```shell
|
||||
> go generate ./...
|
||||
```
|
||||
|
||||
## Code of Conduct
|
||||
|
||||
This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
|
||||
For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or
|
||||
contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.
|
||||
|
||||
## Special Thanks
|
||||
|
||||
Thanks to [natefinch][natefinch] for the inspiration for this library.
|
||||
See [npipe](https://github.com/natefinch/npipe) for another named pipe implementation.
|
||||
|
||||
[lint]: https://golangci-lint.run/
|
||||
[lint-ide]: https://golangci-lint.run/usage/integrations/#editor-integration
|
||||
[lint-install]: https://golangci-lint.run/usage/install/#local-installation
|
||||
|
||||
[git-commit-s]: https://git-scm.com/docs/git-commit#Documentation/git-commit.txt--s
|
||||
[git-rebase-s]: https://git-scm.com/docs/git-rebase#Documentation/git-rebase.txt---signoff
|
||||
|
||||
[natefinch]: https://github.com/natefinch
|
||||
|
41
vendor/github.com/Microsoft/go-winio/SECURITY.md
generated
vendored
Normal file
41
vendor/github.com/Microsoft/go-winio/SECURITY.md
generated
vendored
Normal file
@ -0,0 +1,41 @@
|
||||
<!-- BEGIN MICROSOFT SECURITY.MD V0.0.7 BLOCK -->
|
||||
|
||||
## Security
|
||||
|
||||
Microsoft takes the security of our software products and services seriously, which includes all source code repositories managed through our GitHub organizations, which include [Microsoft](https://github.com/Microsoft), [Azure](https://github.com/Azure), [DotNet](https://github.com/dotnet), [AspNet](https://github.com/aspnet), [Xamarin](https://github.com/xamarin), and [our GitHub organizations](https://opensource.microsoft.com/).
|
||||
|
||||
If you believe you have found a security vulnerability in any Microsoft-owned repository that meets [Microsoft's definition of a security vulnerability](https://aka.ms/opensource/security/definition), please report it to us as described below.
|
||||
|
||||
## Reporting Security Issues
|
||||
|
||||
**Please do not report security vulnerabilities through public GitHub issues.**
|
||||
|
||||
Instead, please report them to the Microsoft Security Response Center (MSRC) at [https://msrc.microsoft.com/create-report](https://aka.ms/opensource/security/create-report).
|
||||
|
||||
If you prefer to submit without logging in, send email to [secure@microsoft.com](mailto:secure@microsoft.com). If possible, encrypt your message with our PGP key; please download it from the [Microsoft Security Response Center PGP Key page](https://aka.ms/opensource/security/pgpkey).
|
||||
|
||||
You should receive a response within 24 hours. If for some reason you do not, please follow up via email to ensure we received your original message. Additional information can be found at [microsoft.com/msrc](https://aka.ms/opensource/security/msrc).
|
||||
|
||||
Please include the requested information listed below (as much as you can provide) to help us better understand the nature and scope of the possible issue:
|
||||
|
||||
* Type of issue (e.g. buffer overflow, SQL injection, cross-site scripting, etc.)
|
||||
* Full paths of source file(s) related to the manifestation of the issue
|
||||
* The location of the affected source code (tag/branch/commit or direct URL)
|
||||
* Any special configuration required to reproduce the issue
|
||||
* Step-by-step instructions to reproduce the issue
|
||||
* Proof-of-concept or exploit code (if possible)
|
||||
* Impact of the issue, including how an attacker might exploit the issue
|
||||
|
||||
This information will help us triage your report more quickly.
|
||||
|
||||
If you are reporting for a bug bounty, more complete reports can contribute to a higher bounty award. Please visit our [Microsoft Bug Bounty Program](https://aka.ms/opensource/security/bounty) page for more details about our active programs.
|
||||
|
||||
## Preferred Languages
|
||||
|
||||
We prefer all communications to be in English.
|
||||
|
||||
## Policy
|
||||
|
||||
Microsoft follows the principle of [Coordinated Vulnerability Disclosure](https://aka.ms/opensource/security/cvd).
|
||||
|
||||
<!-- END MICROSOFT SECURITY.MD BLOCK -->
|
48
vendor/github.com/Microsoft/go-winio/backup.go
generated
vendored
48
vendor/github.com/Microsoft/go-winio/backup.go
generated
vendored
@ -1,3 +1,4 @@
|
||||
//go:build windows
|
||||
// +build windows
|
||||
|
||||
package winio
|
||||
@ -7,11 +8,12 @@ import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"runtime"
|
||||
"syscall"
|
||||
"unicode/utf16"
|
||||
|
||||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
//sys backupRead(h syscall.Handle, b []byte, bytesRead *uint32, abort bool, processSecurity bool, context *uintptr) (err error) = BackupRead
|
||||
@ -24,7 +26,7 @@ const (
|
||||
BackupAlternateData
|
||||
BackupLink
|
||||
BackupPropertyData
|
||||
BackupObjectId
|
||||
BackupObjectId //revive:disable-line:var-naming ID, not Id
|
||||
BackupReparseData
|
||||
BackupSparseBlock
|
||||
BackupTxfsData
|
||||
@ -34,14 +36,16 @@ const (
|
||||
StreamSparseAttributes = uint32(8)
|
||||
)
|
||||
|
||||
//nolint:revive // var-naming: ALL_CAPS
|
||||
const (
|
||||
WRITE_DAC = 0x40000
|
||||
WRITE_OWNER = 0x80000
|
||||
ACCESS_SYSTEM_SECURITY = 0x1000000
|
||||
WRITE_DAC = windows.WRITE_DAC
|
||||
WRITE_OWNER = windows.WRITE_OWNER
|
||||
ACCESS_SYSTEM_SECURITY = windows.ACCESS_SYSTEM_SECURITY
|
||||
)
|
||||
|
||||
// BackupHeader represents a backup stream of a file.
|
||||
type BackupHeader struct {
|
||||
//revive:disable-next-line:var-naming ID, not Id
|
||||
Id uint32 // The backup stream ID
|
||||
Attributes uint32 // Stream attributes
|
||||
Size int64 // The size of the stream in bytes
|
||||
@ -49,8 +53,8 @@ type BackupHeader struct {
|
||||
Offset int64 // The offset of the stream in the file (for BackupSparseBlock only).
|
||||
}
|
||||
|
||||
type win32StreamId struct {
|
||||
StreamId uint32
|
||||
type win32StreamID struct {
|
||||
StreamID uint32
|
||||
Attributes uint32
|
||||
Size uint64
|
||||
NameSize uint32
|
||||
@ -71,7 +75,7 @@ func NewBackupStreamReader(r io.Reader) *BackupStreamReader {
|
||||
// Next returns the next backup stream and prepares for calls to Read(). It skips the remainder of the current stream if
|
||||
// it was not completely read.
|
||||
func (r *BackupStreamReader) Next() (*BackupHeader, error) {
|
||||
if r.bytesLeft > 0 {
|
||||
if r.bytesLeft > 0 { //nolint:nestif // todo: flatten this
|
||||
if s, ok := r.r.(io.Seeker); ok {
|
||||
// Make sure Seek on io.SeekCurrent sometimes succeeds
|
||||
// before trying the actual seek.
|
||||
@ -82,16 +86,16 @@ func (r *BackupStreamReader) Next() (*BackupHeader, error) {
|
||||
r.bytesLeft = 0
|
||||
}
|
||||
}
|
||||
if _, err := io.Copy(ioutil.Discard, r); err != nil {
|
||||
if _, err := io.Copy(io.Discard, r); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
var wsi win32StreamId
|
||||
var wsi win32StreamID
|
||||
if err := binary.Read(r.r, binary.LittleEndian, &wsi); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
hdr := &BackupHeader{
|
||||
Id: wsi.StreamId,
|
||||
Id: wsi.StreamID,
|
||||
Attributes: wsi.Attributes,
|
||||
Size: int64(wsi.Size),
|
||||
}
|
||||
@ -102,7 +106,7 @@ func (r *BackupStreamReader) Next() (*BackupHeader, error) {
|
||||
}
|
||||
hdr.Name = syscall.UTF16ToString(name)
|
||||
}
|
||||
if wsi.StreamId == BackupSparseBlock {
|
||||
if wsi.StreamID == BackupSparseBlock {
|
||||
if err := binary.Read(r.r, binary.LittleEndian, &hdr.Offset); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
@ -147,8 +151,8 @@ func (w *BackupStreamWriter) WriteHeader(hdr *BackupHeader) error {
|
||||
return fmt.Errorf("missing %d bytes", w.bytesLeft)
|
||||
}
|
||||
name := utf16.Encode([]rune(hdr.Name))
|
||||
wsi := win32StreamId{
|
||||
StreamId: hdr.Id,
|
||||
wsi := win32StreamID{
|
||||
StreamID: hdr.Id,
|
||||
Attributes: hdr.Attributes,
|
||||
Size: uint64(hdr.Size),
|
||||
NameSize: uint32(len(name) * 2),
|
||||
@ -203,7 +207,7 @@ func (r *BackupFileReader) Read(b []byte) (int, error) {
|
||||
var bytesRead uint32
|
||||
err := backupRead(syscall.Handle(r.f.Fd()), b, &bytesRead, false, r.includeSecurity, &r.ctx)
|
||||
if err != nil {
|
||||
return 0, &os.PathError{"BackupRead", r.f.Name(), err}
|
||||
return 0, &os.PathError{Op: "BackupRead", Path: r.f.Name(), Err: err}
|
||||
}
|
||||
runtime.KeepAlive(r.f)
|
||||
if bytesRead == 0 {
|
||||
@ -216,7 +220,7 @@ func (r *BackupFileReader) Read(b []byte) (int, error) {
|
||||
// the underlying file.
|
||||
func (r *BackupFileReader) Close() error {
|
||||
if r.ctx != 0 {
|
||||
backupRead(syscall.Handle(r.f.Fd()), nil, nil, true, false, &r.ctx)
|
||||
_ = backupRead(syscall.Handle(r.f.Fd()), nil, nil, true, false, &r.ctx)
|
||||
runtime.KeepAlive(r.f)
|
||||
r.ctx = 0
|
||||
}
|
||||
@ -242,7 +246,7 @@ func (w *BackupFileWriter) Write(b []byte) (int, error) {
|
||||
var bytesWritten uint32
|
||||
err := backupWrite(syscall.Handle(w.f.Fd()), b, &bytesWritten, false, w.includeSecurity, &w.ctx)
|
||||
if err != nil {
|
||||
return 0, &os.PathError{"BackupWrite", w.f.Name(), err}
|
||||
return 0, &os.PathError{Op: "BackupWrite", Path: w.f.Name(), Err: err}
|
||||
}
|
||||
runtime.KeepAlive(w.f)
|
||||
if int(bytesWritten) != len(b) {
|
||||
@ -255,7 +259,7 @@ func (w *BackupFileWriter) Write(b []byte) (int, error) {
|
||||
// close the underlying file.
|
||||
func (w *BackupFileWriter) Close() error {
|
||||
if w.ctx != 0 {
|
||||
backupWrite(syscall.Handle(w.f.Fd()), nil, nil, true, false, &w.ctx)
|
||||
_ = backupWrite(syscall.Handle(w.f.Fd()), nil, nil, true, false, &w.ctx)
|
||||
runtime.KeepAlive(w.f)
|
||||
w.ctx = 0
|
||||
}
|
||||
@ -271,7 +275,13 @@ func OpenForBackup(path string, access uint32, share uint32, createmode uint32)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
h, err := syscall.CreateFile(&winPath[0], access, share, nil, createmode, syscall.FILE_FLAG_BACKUP_SEMANTICS|syscall.FILE_FLAG_OPEN_REPARSE_POINT, 0)
|
||||
h, err := syscall.CreateFile(&winPath[0],
|
||||
access,
|
||||
share,
|
||||
nil,
|
||||
createmode,
|
||||
syscall.FILE_FLAG_BACKUP_SEMANTICS|syscall.FILE_FLAG_OPEN_REPARSE_POINT,
|
||||
0)
|
||||
if err != nil {
|
||||
err = &os.PathError{Op: "open", Path: path, Err: err}
|
||||
return nil, err
|
||||
|
22
vendor/github.com/Microsoft/go-winio/doc.go
generated
vendored
Normal file
22
vendor/github.com/Microsoft/go-winio/doc.go
generated
vendored
Normal file
@ -0,0 +1,22 @@
|
||||
// This package provides utilities for efficiently performing Win32 IO operations in Go.
|
||||
// Currently, this package is provides support for genreal IO and management of
|
||||
// - named pipes
|
||||
// - files
|
||||
// - [Hyper-V sockets]
|
||||
//
|
||||
// This code is similar to Go's [net] package, and uses IO completion ports to avoid
|
||||
// blocking IO on system threads, allowing Go to reuse the thread to schedule other goroutines.
|
||||
//
|
||||
// This limits support to Windows Vista and newer operating systems.
|
||||
//
|
||||
// Additionally, this package provides support for:
|
||||
// - creating and managing GUIDs
|
||||
// - writing to [ETW]
|
||||
// - opening and manageing VHDs
|
||||
// - parsing [Windows Image files]
|
||||
// - auto-generating Win32 API code
|
||||
//
|
||||
// [Hyper-V sockets]: https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/make-integration-service
|
||||
// [ETW]: https://docs.microsoft.com/en-us/windows-hardware/drivers/devtest/event-tracing-for-windows--etw-
|
||||
// [Windows Image files]: https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/work-with-windows-images
|
||||
package winio
|
8
vendor/github.com/Microsoft/go-winio/ea.go
generated
vendored
8
vendor/github.com/Microsoft/go-winio/ea.go
generated
vendored
@ -33,7 +33,7 @@ func parseEa(b []byte) (ea ExtendedAttribute, nb []byte, err error) {
|
||||
err = binary.Read(bytes.NewReader(b), binary.LittleEndian, &info)
|
||||
if err != nil {
|
||||
err = errInvalidEaBuffer
|
||||
return
|
||||
return ea, nb, err
|
||||
}
|
||||
|
||||
nameOffset := fileFullEaInformationSize
|
||||
@ -43,7 +43,7 @@ func parseEa(b []byte) (ea ExtendedAttribute, nb []byte, err error) {
|
||||
nextOffset := int(info.NextEntryOffset)
|
||||
if valueLen+valueOffset > len(b) || nextOffset < 0 || nextOffset > len(b) {
|
||||
err = errInvalidEaBuffer
|
||||
return
|
||||
return ea, nb, err
|
||||
}
|
||||
|
||||
ea.Name = string(b[nameOffset : nameOffset+nameLen])
|
||||
@ -52,7 +52,7 @@ func parseEa(b []byte) (ea ExtendedAttribute, nb []byte, err error) {
|
||||
if info.NextEntryOffset != 0 {
|
||||
nb = b[info.NextEntryOffset:]
|
||||
}
|
||||
return
|
||||
return ea, nb, err
|
||||
}
|
||||
|
||||
// DecodeExtendedAttributes decodes a list of EAs from a FILE_FULL_EA_INFORMATION
|
||||
@ -67,7 +67,7 @@ func DecodeExtendedAttributes(b []byte) (eas []ExtendedAttribute, err error) {
|
||||
eas = append(eas, ea)
|
||||
b = nb
|
||||
}
|
||||
return
|
||||
return eas, err
|
||||
}
|
||||
|
||||
func writeEa(buf *bytes.Buffer, ea *ExtendedAttribute, last bool) error {
|
||||
|
70
vendor/github.com/Microsoft/go-winio/file.go
generated
vendored
70
vendor/github.com/Microsoft/go-winio/file.go
generated
vendored
@ -1,3 +1,4 @@
|
||||
//go:build windows
|
||||
// +build windows
|
||||
|
||||
package winio
|
||||
@ -10,6 +11,8 @@ import (
|
||||
"sync/atomic"
|
||||
"syscall"
|
||||
"time"
|
||||
|
||||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
//sys cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) = CancelIoEx
|
||||
@ -23,6 +26,8 @@ type atomicBool int32
|
||||
func (b *atomicBool) isSet() bool { return atomic.LoadInt32((*int32)(b)) != 0 }
|
||||
func (b *atomicBool) setFalse() { atomic.StoreInt32((*int32)(b), 0) }
|
||||
func (b *atomicBool) setTrue() { atomic.StoreInt32((*int32)(b), 1) }
|
||||
|
||||
//revive:disable-next-line:predeclared Keep "new" to maintain consistency with "atomic" pkg
|
||||
func (b *atomicBool) swap(new bool) bool {
|
||||
var newInt int32
|
||||
if new {
|
||||
@ -31,11 +36,6 @@ func (b *atomicBool) swap(new bool) bool {
|
||||
return atomic.SwapInt32((*int32)(b), newInt) == 1
|
||||
}
|
||||
|
||||
const (
|
||||
cFILE_SKIP_COMPLETION_PORT_ON_SUCCESS = 1
|
||||
cFILE_SKIP_SET_EVENT_ON_HANDLE = 2
|
||||
)
|
||||
|
||||
var (
|
||||
ErrFileClosed = errors.New("file has already been closed")
|
||||
ErrTimeout = &timeoutError{}
|
||||
@ -43,28 +43,28 @@ var (
|
||||
|
||||
type timeoutError struct{}
|
||||
|
||||
func (e *timeoutError) Error() string { return "i/o timeout" }
|
||||
func (e *timeoutError) Timeout() bool { return true }
|
||||
func (e *timeoutError) Temporary() bool { return true }
|
||||
func (*timeoutError) Error() string { return "i/o timeout" }
|
||||
func (*timeoutError) Timeout() bool { return true }
|
||||
func (*timeoutError) Temporary() bool { return true }
|
||||
|
||||
type timeoutChan chan struct{}
|
||||
|
||||
var ioInitOnce sync.Once
|
||||
var ioCompletionPort syscall.Handle
|
||||
|
||||
// ioResult contains the result of an asynchronous IO operation
|
||||
// ioResult contains the result of an asynchronous IO operation.
|
||||
type ioResult struct {
|
||||
bytes uint32
|
||||
err error
|
||||
}
|
||||
|
||||
// ioOperation represents an outstanding asynchronous Win32 IO
|
||||
// ioOperation represents an outstanding asynchronous Win32 IO.
|
||||
type ioOperation struct {
|
||||
o syscall.Overlapped
|
||||
ch chan ioResult
|
||||
}
|
||||
|
||||
func initIo() {
|
||||
func initIO() {
|
||||
h, err := createIoCompletionPort(syscall.InvalidHandle, 0, 0, 0xffffffff)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
@ -93,15 +93,15 @@ type deadlineHandler struct {
|
||||
timedout atomicBool
|
||||
}
|
||||
|
||||
// makeWin32File makes a new win32File from an existing file handle
|
||||
// makeWin32File makes a new win32File from an existing file handle.
|
||||
func makeWin32File(h syscall.Handle) (*win32File, error) {
|
||||
f := &win32File{handle: h}
|
||||
ioInitOnce.Do(initIo)
|
||||
ioInitOnce.Do(initIO)
|
||||
_, err := createIoCompletionPort(h, ioCompletionPort, 0, 0xffffffff)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
err = setFileCompletionNotificationModes(h, cFILE_SKIP_COMPLETION_PORT_ON_SUCCESS|cFILE_SKIP_SET_EVENT_ON_HANDLE)
|
||||
err = setFileCompletionNotificationModes(h, windows.FILE_SKIP_COMPLETION_PORT_ON_SUCCESS|windows.FILE_SKIP_SET_EVENT_ON_HANDLE)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
@ -120,14 +120,14 @@ func MakeOpenFile(h syscall.Handle) (io.ReadWriteCloser, error) {
|
||||
return f, nil
|
||||
}
|
||||
|
||||
// closeHandle closes the resources associated with a Win32 handle
|
||||
// closeHandle closes the resources associated with a Win32 handle.
|
||||
func (f *win32File) closeHandle() {
|
||||
f.wgLock.Lock()
|
||||
// Atomically set that we are closing, releasing the resources only once.
|
||||
if !f.closing.swap(true) {
|
||||
f.wgLock.Unlock()
|
||||
// cancel all IO and wait for it to complete
|
||||
cancelIoEx(f.handle, nil)
|
||||
_ = cancelIoEx(f.handle, nil)
|
||||
f.wg.Wait()
|
||||
// at this point, no new IO can start
|
||||
syscall.Close(f.handle)
|
||||
@ -143,9 +143,14 @@ func (f *win32File) Close() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// prepareIo prepares for a new IO operation.
|
||||
// IsClosed checks if the file has been closed.
|
||||
func (f *win32File) IsClosed() bool {
|
||||
return f.closing.isSet()
|
||||
}
|
||||
|
||||
// prepareIO prepares for a new IO operation.
|
||||
// The caller must call f.wg.Done() when the IO is finished, prior to Close() returning.
|
||||
func (f *win32File) prepareIo() (*ioOperation, error) {
|
||||
func (f *win32File) prepareIO() (*ioOperation, error) {
|
||||
f.wgLock.RLock()
|
||||
if f.closing.isSet() {
|
||||
f.wgLock.RUnlock()
|
||||
@ -158,7 +163,7 @@ func (f *win32File) prepareIo() (*ioOperation, error) {
|
||||
return c, nil
|
||||
}
|
||||
|
||||
// ioCompletionProcessor processes completed async IOs forever
|
||||
// ioCompletionProcessor processes completed async IOs forever.
|
||||
func ioCompletionProcessor(h syscall.Handle) {
|
||||
for {
|
||||
var bytes uint32
|
||||
@ -172,15 +177,17 @@ func ioCompletionProcessor(h syscall.Handle) {
|
||||
}
|
||||
}
|
||||
|
||||
// asyncIo processes the return value from ReadFile or WriteFile, blocking until
|
||||
// todo: helsaawy - create an asyncIO version that takes a context
|
||||
|
||||
// asyncIO processes the return value from ReadFile or WriteFile, blocking until
|
||||
// the operation has actually completed.
|
||||
func (f *win32File) asyncIo(c *ioOperation, d *deadlineHandler, bytes uint32, err error) (int, error) {
|
||||
if err != syscall.ERROR_IO_PENDING {
|
||||
func (f *win32File) asyncIO(c *ioOperation, d *deadlineHandler, bytes uint32, err error) (int, error) {
|
||||
if err != syscall.ERROR_IO_PENDING { //nolint:errorlint // err is Errno
|
||||
return int(bytes), err
|
||||
}
|
||||
|
||||
if f.closing.isSet() {
|
||||
cancelIoEx(f.handle, &c.o)
|
||||
_ = cancelIoEx(f.handle, &c.o)
|
||||
}
|
||||
|
||||
var timeout timeoutChan
|
||||
@ -194,7 +201,7 @@ func (f *win32File) asyncIo(c *ioOperation, d *deadlineHandler, bytes uint32, er
|
||||
select {
|
||||
case r = <-c.ch:
|
||||
err = r.err
|
||||
if err == syscall.ERROR_OPERATION_ABORTED {
|
||||
if err == syscall.ERROR_OPERATION_ABORTED { //nolint:errorlint // err is Errno
|
||||
if f.closing.isSet() {
|
||||
err = ErrFileClosed
|
||||
}
|
||||
@ -204,10 +211,10 @@ func (f *win32File) asyncIo(c *ioOperation, d *deadlineHandler, bytes uint32, er
|
||||
err = wsaGetOverlappedResult(f.handle, &c.o, &bytes, false, &flags)
|
||||
}
|
||||
case <-timeout:
|
||||
cancelIoEx(f.handle, &c.o)
|
||||
_ = cancelIoEx(f.handle, &c.o)
|
||||
r = <-c.ch
|
||||
err = r.err
|
||||
if err == syscall.ERROR_OPERATION_ABORTED {
|
||||
if err == syscall.ERROR_OPERATION_ABORTED { //nolint:errorlint // err is Errno
|
||||
err = ErrTimeout
|
||||
}
|
||||
}
|
||||
@ -215,13 +222,14 @@ func (f *win32File) asyncIo(c *ioOperation, d *deadlineHandler, bytes uint32, er
|
||||
// runtime.KeepAlive is needed, as c is passed via native
|
||||
// code to ioCompletionProcessor, c must remain alive
|
||||
// until the channel read is complete.
|
||||
// todo: (de)allocate *ioOperation via win32 heap functions, instead of needing to KeepAlive?
|
||||
runtime.KeepAlive(c)
|
||||
return int(r.bytes), err
|
||||
}
|
||||
|
||||
// Read reads from a file handle.
|
||||
func (f *win32File) Read(b []byte) (int, error) {
|
||||
c, err := f.prepareIo()
|
||||
c, err := f.prepareIO()
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
@ -233,13 +241,13 @@ func (f *win32File) Read(b []byte) (int, error) {
|
||||
|
||||
var bytes uint32
|
||||
err = syscall.ReadFile(f.handle, b, &bytes, &c.o)
|
||||
n, err := f.asyncIo(c, &f.readDeadline, bytes, err)
|
||||
n, err := f.asyncIO(c, &f.readDeadline, bytes, err)
|
||||
runtime.KeepAlive(b)
|
||||
|
||||
// Handle EOF conditions.
|
||||
if err == nil && n == 0 && len(b) != 0 {
|
||||
return 0, io.EOF
|
||||
} else if err == syscall.ERROR_BROKEN_PIPE {
|
||||
} else if err == syscall.ERROR_BROKEN_PIPE { //nolint:errorlint // err is Errno
|
||||
return 0, io.EOF
|
||||
} else {
|
||||
return n, err
|
||||
@ -248,7 +256,7 @@ func (f *win32File) Read(b []byte) (int, error) {
|
||||
|
||||
// Write writes to a file handle.
|
||||
func (f *win32File) Write(b []byte) (int, error) {
|
||||
c, err := f.prepareIo()
|
||||
c, err := f.prepareIO()
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
@ -260,7 +268,7 @@ func (f *win32File) Write(b []byte) (int, error) {
|
||||
|
||||
var bytes uint32
|
||||
err = syscall.WriteFile(f.handle, b, &bytes, &c.o)
|
||||
n, err := f.asyncIo(c, &f.writeDeadline, bytes, err)
|
||||
n, err := f.asyncIO(c, &f.writeDeadline, bytes, err)
|
||||
runtime.KeepAlive(b)
|
||||
return n, err
|
||||
}
|
||||
|
29
vendor/github.com/Microsoft/go-winio/fileinfo.go
generated
vendored
29
vendor/github.com/Microsoft/go-winio/fileinfo.go
generated
vendored
@ -1,3 +1,4 @@
|
||||
//go:build windows
|
||||
// +build windows
|
||||
|
||||
package winio
|
||||
@ -14,13 +15,18 @@ import (
|
||||
type FileBasicInfo struct {
|
||||
CreationTime, LastAccessTime, LastWriteTime, ChangeTime windows.Filetime
|
||||
FileAttributes uint32
|
||||
pad uint32 // padding
|
||||
_ uint32 // padding
|
||||
}
|
||||
|
||||
// GetFileBasicInfo retrieves times and attributes for a file.
|
||||
func GetFileBasicInfo(f *os.File) (*FileBasicInfo, error) {
|
||||
bi := &FileBasicInfo{}
|
||||
if err := windows.GetFileInformationByHandleEx(windows.Handle(f.Fd()), windows.FileBasicInfo, (*byte)(unsafe.Pointer(bi)), uint32(unsafe.Sizeof(*bi))); err != nil {
|
||||
if err := windows.GetFileInformationByHandleEx(
|
||||
windows.Handle(f.Fd()),
|
||||
windows.FileBasicInfo,
|
||||
(*byte)(unsafe.Pointer(bi)),
|
||||
uint32(unsafe.Sizeof(*bi)),
|
||||
); err != nil {
|
||||
return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
|
||||
}
|
||||
runtime.KeepAlive(f)
|
||||
@ -29,7 +35,12 @@ func GetFileBasicInfo(f *os.File) (*FileBasicInfo, error) {
|
||||
|
||||
// SetFileBasicInfo sets times and attributes for a file.
|
||||
func SetFileBasicInfo(f *os.File, bi *FileBasicInfo) error {
|
||||
if err := windows.SetFileInformationByHandle(windows.Handle(f.Fd()), windows.FileBasicInfo, (*byte)(unsafe.Pointer(bi)), uint32(unsafe.Sizeof(*bi))); err != nil {
|
||||
if err := windows.SetFileInformationByHandle(
|
||||
windows.Handle(f.Fd()),
|
||||
windows.FileBasicInfo,
|
||||
(*byte)(unsafe.Pointer(bi)),
|
||||
uint32(unsafe.Sizeof(*bi)),
|
||||
); err != nil {
|
||||
return &os.PathError{Op: "SetFileInformationByHandle", Path: f.Name(), Err: err}
|
||||
}
|
||||
runtime.KeepAlive(f)
|
||||
@ -48,7 +59,10 @@ type FileStandardInfo struct {
|
||||
// GetFileStandardInfo retrieves ended information for the file.
|
||||
func GetFileStandardInfo(f *os.File) (*FileStandardInfo, error) {
|
||||
si := &FileStandardInfo{}
|
||||
if err := windows.GetFileInformationByHandleEx(windows.Handle(f.Fd()), windows.FileStandardInfo, (*byte)(unsafe.Pointer(si)), uint32(unsafe.Sizeof(*si))); err != nil {
|
||||
if err := windows.GetFileInformationByHandleEx(windows.Handle(f.Fd()),
|
||||
windows.FileStandardInfo,
|
||||
(*byte)(unsafe.Pointer(si)),
|
||||
uint32(unsafe.Sizeof(*si))); err != nil {
|
||||
return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
|
||||
}
|
||||
runtime.KeepAlive(f)
|
||||
@ -65,7 +79,12 @@ type FileIDInfo struct {
|
||||
// GetFileID retrieves the unique (volume, file ID) pair for a file.
|
||||
func GetFileID(f *os.File) (*FileIDInfo, error) {
|
||||
fileID := &FileIDInfo{}
|
||||
if err := windows.GetFileInformationByHandleEx(windows.Handle(f.Fd()), windows.FileIdInfo, (*byte)(unsafe.Pointer(fileID)), uint32(unsafe.Sizeof(*fileID))); err != nil {
|
||||
if err := windows.GetFileInformationByHandleEx(
|
||||
windows.Handle(f.Fd()),
|
||||
windows.FileIdInfo,
|
||||
(*byte)(unsafe.Pointer(fileID)),
|
||||
uint32(unsafe.Sizeof(*fileID)),
|
||||
); err != nil {
|
||||
return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
|
||||
}
|
||||
runtime.KeepAlive(f)
|
||||
|
360
vendor/github.com/Microsoft/go-winio/hvsock.go
generated
vendored
360
vendor/github.com/Microsoft/go-winio/hvsock.go
generated
vendored
@ -1,8 +1,11 @@
|
||||
//go:build windows
|
||||
// +build windows
|
||||
|
||||
package winio
|
||||
|
||||
import (
|
||||
"context"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"net"
|
||||
@ -11,16 +14,87 @@ import (
|
||||
"time"
|
||||
"unsafe"
|
||||
|
||||
"golang.org/x/sys/windows"
|
||||
|
||||
"github.com/Microsoft/go-winio/internal/socket"
|
||||
"github.com/Microsoft/go-winio/pkg/guid"
|
||||
)
|
||||
|
||||
//sys bind(s syscall.Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socketError] = ws2_32.bind
|
||||
const afHVSock = 34 // AF_HYPERV
|
||||
|
||||
const (
|
||||
afHvSock = 34 // AF_HYPERV
|
||||
// Well known Service and VM IDs
|
||||
//https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/make-integration-service#vmid-wildcards
|
||||
|
||||
socketError = ^uintptr(0)
|
||||
)
|
||||
// HvsockGUIDWildcard is the wildcard VmId for accepting connections from all partitions.
|
||||
func HvsockGUIDWildcard() guid.GUID { // 00000000-0000-0000-0000-000000000000
|
||||
return guid.GUID{}
|
||||
}
|
||||
|
||||
// HvsockGUIDBroadcast is the wildcard VmId for broadcasting sends to all partitions.
|
||||
func HvsockGUIDBroadcast() guid.GUID { //ffffffff-ffff-ffff-ffff-ffffffffffff
|
||||
return guid.GUID{
|
||||
Data1: 0xffffffff,
|
||||
Data2: 0xffff,
|
||||
Data3: 0xffff,
|
||||
Data4: [8]uint8{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
|
||||
}
|
||||
}
|
||||
|
||||
// HvsockGUIDLoopback is the Loopback VmId for accepting connections to the same partition as the connector.
|
||||
func HvsockGUIDLoopback() guid.GUID { // e0e16197-dd56-4a10-9195-5ee7a155a838
|
||||
return guid.GUID{
|
||||
Data1: 0xe0e16197,
|
||||
Data2: 0xdd56,
|
||||
Data3: 0x4a10,
|
||||
Data4: [8]uint8{0x91, 0x95, 0x5e, 0xe7, 0xa1, 0x55, 0xa8, 0x38},
|
||||
}
|
||||
}
|
||||
|
||||
// HvsockGUIDSiloHost is the address of a silo's host partition:
|
||||
// - The silo host of a hosted silo is the utility VM.
|
||||
// - The silo host of a silo on a physical host is the physical host.
|
||||
func HvsockGUIDSiloHost() guid.GUID { // 36bd0c5c-7276-4223-88ba-7d03b654c568
|
||||
return guid.GUID{
|
||||
Data1: 0x36bd0c5c,
|
||||
Data2: 0x7276,
|
||||
Data3: 0x4223,
|
||||
Data4: [8]byte{0x88, 0xba, 0x7d, 0x03, 0xb6, 0x54, 0xc5, 0x68},
|
||||
}
|
||||
}
|
||||
|
||||
// HvsockGUIDChildren is the wildcard VmId for accepting connections from the connector's child partitions.
|
||||
func HvsockGUIDChildren() guid.GUID { // 90db8b89-0d35-4f79-8ce9-49ea0ac8b7cd
|
||||
return guid.GUID{
|
||||
Data1: 0x90db8b89,
|
||||
Data2: 0xd35,
|
||||
Data3: 0x4f79,
|
||||
Data4: [8]uint8{0x8c, 0xe9, 0x49, 0xea, 0xa, 0xc8, 0xb7, 0xcd},
|
||||
}
|
||||
}
|
||||
|
||||
// HvsockGUIDParent is the wildcard VmId for accepting connections from the connector's parent partition.
|
||||
// Listening on this VmId accepts connection from:
|
||||
// - Inside silos: silo host partition.
|
||||
// - Inside hosted silo: host of the VM.
|
||||
// - Inside VM: VM host.
|
||||
// - Physical host: Not supported.
|
||||
func HvsockGUIDParent() guid.GUID { // a42e7cda-d03f-480c-9cc2-a4de20abb878
|
||||
return guid.GUID{
|
||||
Data1: 0xa42e7cda,
|
||||
Data2: 0xd03f,
|
||||
Data3: 0x480c,
|
||||
Data4: [8]uint8{0x9c, 0xc2, 0xa4, 0xde, 0x20, 0xab, 0xb8, 0x78},
|
||||
}
|
||||
}
|
||||
|
||||
// hvsockVsockServiceTemplate is the Service GUID used for the VSOCK protocol.
|
||||
func hvsockVsockServiceTemplate() guid.GUID { // 00000000-facb-11e6-bd58-64006a7986d3
|
||||
return guid.GUID{
|
||||
Data2: 0xfacb,
|
||||
Data3: 0x11e6,
|
||||
Data4: [8]uint8{0xbd, 0x58, 0x64, 0x00, 0x6a, 0x79, 0x86, 0xd3},
|
||||
}
|
||||
}
|
||||
|
||||
// An HvsockAddr is an address for a AF_HYPERV socket.
|
||||
type HvsockAddr struct {
|
||||
@ -35,8 +109,10 @@ type rawHvsockAddr struct {
|
||||
ServiceID guid.GUID
|
||||
}
|
||||
|
||||
var _ socket.RawSockaddr = &rawHvsockAddr{}
|
||||
|
||||
// Network returns the address's network name, "hvsock".
|
||||
func (addr *HvsockAddr) Network() string {
|
||||
func (*HvsockAddr) Network() string {
|
||||
return "hvsock"
|
||||
}
|
||||
|
||||
@ -46,14 +122,14 @@ func (addr *HvsockAddr) String() string {
|
||||
|
||||
// VsockServiceID returns an hvsock service ID corresponding to the specified AF_VSOCK port.
|
||||
func VsockServiceID(port uint32) guid.GUID {
|
||||
g, _ := guid.FromString("00000000-facb-11e6-bd58-64006a7986d3")
|
||||
g := hvsockVsockServiceTemplate() // make a copy
|
||||
g.Data1 = port
|
||||
return g
|
||||
}
|
||||
|
||||
func (addr *HvsockAddr) raw() rawHvsockAddr {
|
||||
return rawHvsockAddr{
|
||||
Family: afHvSock,
|
||||
Family: afHVSock,
|
||||
VMID: addr.VMID,
|
||||
ServiceID: addr.ServiceID,
|
||||
}
|
||||
@ -64,20 +140,48 @@ func (addr *HvsockAddr) fromRaw(raw *rawHvsockAddr) {
|
||||
addr.ServiceID = raw.ServiceID
|
||||
}
|
||||
|
||||
// Sockaddr returns a pointer to and the size of this struct.
|
||||
//
|
||||
// Implements the [socket.RawSockaddr] interface, and allows use in
|
||||
// [socket.Bind] and [socket.ConnectEx].
|
||||
func (r *rawHvsockAddr) Sockaddr() (unsafe.Pointer, int32, error) {
|
||||
return unsafe.Pointer(r), int32(unsafe.Sizeof(rawHvsockAddr{})), nil
|
||||
}
|
||||
|
||||
// Sockaddr interface allows use with `sockets.Bind()` and `.ConnectEx()`.
|
||||
func (r *rawHvsockAddr) FromBytes(b []byte) error {
|
||||
n := int(unsafe.Sizeof(rawHvsockAddr{}))
|
||||
|
||||
if len(b) < n {
|
||||
return fmt.Errorf("got %d, want %d: %w", len(b), n, socket.ErrBufferSize)
|
||||
}
|
||||
|
||||
copy(unsafe.Slice((*byte)(unsafe.Pointer(r)), n), b[:n])
|
||||
if r.Family != afHVSock {
|
||||
return fmt.Errorf("got %d, want %d: %w", r.Family, afHVSock, socket.ErrAddrFamily)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// HvsockListener is a socket listener for the AF_HYPERV address family.
|
||||
type HvsockListener struct {
|
||||
sock *win32File
|
||||
addr HvsockAddr
|
||||
}
|
||||
|
||||
var _ net.Listener = &HvsockListener{}
|
||||
|
||||
// HvsockConn is a connected socket of the AF_HYPERV address family.
|
||||
type HvsockConn struct {
|
||||
sock *win32File
|
||||
local, remote HvsockAddr
|
||||
}
|
||||
|
||||
func newHvSocket() (*win32File, error) {
|
||||
fd, err := syscall.Socket(afHvSock, syscall.SOCK_STREAM, 1)
|
||||
var _ net.Conn = &HvsockConn{}
|
||||
|
||||
func newHVSocket() (*win32File, error) {
|
||||
fd, err := syscall.Socket(afHVSock, syscall.SOCK_STREAM, 1)
|
||||
if err != nil {
|
||||
return nil, os.NewSyscallError("socket", err)
|
||||
}
|
||||
@ -93,12 +197,12 @@ func newHvSocket() (*win32File, error) {
|
||||
// ListenHvsock listens for connections on the specified hvsock address.
|
||||
func ListenHvsock(addr *HvsockAddr) (_ *HvsockListener, err error) {
|
||||
l := &HvsockListener{addr: *addr}
|
||||
sock, err := newHvSocket()
|
||||
sock, err := newHVSocket()
|
||||
if err != nil {
|
||||
return nil, l.opErr("listen", err)
|
||||
}
|
||||
sa := addr.raw()
|
||||
err = bind(sock.handle, unsafe.Pointer(&sa), int32(unsafe.Sizeof(sa)))
|
||||
err = socket.Bind(windows.Handle(sock.handle), &sa)
|
||||
if err != nil {
|
||||
return nil, l.opErr("listen", os.NewSyscallError("socket", err))
|
||||
}
|
||||
@ -120,7 +224,7 @@ func (l *HvsockListener) Addr() net.Addr {
|
||||
|
||||
// Accept waits for the next connection and returns it.
|
||||
func (l *HvsockListener) Accept() (_ net.Conn, err error) {
|
||||
sock, err := newHvSocket()
|
||||
sock, err := newHVSocket()
|
||||
if err != nil {
|
||||
return nil, l.opErr("accept", err)
|
||||
}
|
||||
@ -129,27 +233,42 @@ func (l *HvsockListener) Accept() (_ net.Conn, err error) {
|
||||
sock.Close()
|
||||
}
|
||||
}()
|
||||
c, err := l.sock.prepareIo()
|
||||
c, err := l.sock.prepareIO()
|
||||
if err != nil {
|
||||
return nil, l.opErr("accept", err)
|
||||
}
|
||||
defer l.sock.wg.Done()
|
||||
|
||||
// AcceptEx, per documentation, requires an extra 16 bytes per address.
|
||||
//
|
||||
// https://docs.microsoft.com/en-us/windows/win32/api/mswsock/nf-mswsock-acceptex
|
||||
const addrlen = uint32(16 + unsafe.Sizeof(rawHvsockAddr{}))
|
||||
var addrbuf [addrlen * 2]byte
|
||||
|
||||
var bytes uint32
|
||||
err = syscall.AcceptEx(l.sock.handle, sock.handle, &addrbuf[0], 0, addrlen, addrlen, &bytes, &c.o)
|
||||
_, err = l.sock.asyncIo(c, nil, bytes, err)
|
||||
if err != nil {
|
||||
err = syscall.AcceptEx(l.sock.handle, sock.handle, &addrbuf[0], 0 /*rxdatalen*/, addrlen, addrlen, &bytes, &c.o)
|
||||
if _, err = l.sock.asyncIO(c, nil, bytes, err); err != nil {
|
||||
return nil, l.opErr("accept", os.NewSyscallError("acceptex", err))
|
||||
}
|
||||
|
||||
conn := &HvsockConn{
|
||||
sock: sock,
|
||||
}
|
||||
// The local address returned in the AcceptEx buffer is the same as the Listener socket's
|
||||
// address. However, the service GUID reported by GetSockName is different from the Listeners
|
||||
// socket, and is sometimes the same as the local address of the socket that dialed the
|
||||
// address, with the service GUID.Data1 incremented, but othertimes is different.
|
||||
// todo: does the local address matter? is the listener's address or the actual address appropriate?
|
||||
conn.local.fromRaw((*rawHvsockAddr)(unsafe.Pointer(&addrbuf[0])))
|
||||
conn.remote.fromRaw((*rawHvsockAddr)(unsafe.Pointer(&addrbuf[addrlen])))
|
||||
|
||||
// initialize the accepted socket and update its properties with those of the listening socket
|
||||
if err = windows.Setsockopt(windows.Handle(sock.handle),
|
||||
windows.SOL_SOCKET, windows.SO_UPDATE_ACCEPT_CONTEXT,
|
||||
(*byte)(unsafe.Pointer(&l.sock.handle)), int32(unsafe.Sizeof(l.sock.handle))); err != nil {
|
||||
return nil, conn.opErr("accept", os.NewSyscallError("setsockopt", err))
|
||||
}
|
||||
|
||||
sock = nil
|
||||
return conn, nil
|
||||
}
|
||||
@ -159,43 +278,171 @@ func (l *HvsockListener) Close() error {
|
||||
return l.sock.Close()
|
||||
}
|
||||
|
||||
/* Need to finish ConnectEx handling
|
||||
func DialHvsock(ctx context.Context, addr *HvsockAddr) (*HvsockConn, error) {
|
||||
sock, err := newHvSocket()
|
||||
// HvsockDialer configures and dials a Hyper-V Socket (ie, [HvsockConn]).
|
||||
type HvsockDialer struct {
|
||||
// Deadline is the time the Dial operation must connect before erroring.
|
||||
Deadline time.Time
|
||||
|
||||
// Retries is the number of additional connects to try if the connection times out, is refused,
|
||||
// or the host is unreachable
|
||||
Retries uint
|
||||
|
||||
// RetryWait is the time to wait after a connection error to retry
|
||||
RetryWait time.Duration
|
||||
|
||||
rt *time.Timer // redial wait timer
|
||||
}
|
||||
|
||||
// Dial the Hyper-V socket at addr.
|
||||
//
|
||||
// See [HvsockDialer.Dial] for more information.
|
||||
func Dial(ctx context.Context, addr *HvsockAddr) (conn *HvsockConn, err error) {
|
||||
return (&HvsockDialer{}).Dial(ctx, addr)
|
||||
}
|
||||
|
||||
// Dial attempts to connect to the Hyper-V socket at addr, and returns a connection if successful.
|
||||
// Will attempt (HvsockDialer).Retries if dialing fails, waiting (HvsockDialer).RetryWait between
|
||||
// retries.
|
||||
//
|
||||
// Dialing can be cancelled either by providing (HvsockDialer).Deadline, or cancelling ctx.
|
||||
func (d *HvsockDialer) Dial(ctx context.Context, addr *HvsockAddr) (conn *HvsockConn, err error) {
|
||||
op := "dial"
|
||||
// create the conn early to use opErr()
|
||||
conn = &HvsockConn{
|
||||
remote: *addr,
|
||||
}
|
||||
|
||||
if !d.Deadline.IsZero() {
|
||||
var cancel context.CancelFunc
|
||||
ctx, cancel = context.WithDeadline(ctx, d.Deadline)
|
||||
defer cancel()
|
||||
}
|
||||
|
||||
// preemptive timeout/cancellation check
|
||||
if err = ctx.Err(); err != nil {
|
||||
return nil, conn.opErr(op, err)
|
||||
}
|
||||
|
||||
sock, err := newHVSocket()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
return nil, conn.opErr(op, err)
|
||||
}
|
||||
defer func() {
|
||||
if sock != nil {
|
||||
sock.Close()
|
||||
}
|
||||
}()
|
||||
c, err := sock.prepareIo()
|
||||
|
||||
sa := addr.raw()
|
||||
err = socket.Bind(windows.Handle(sock.handle), &sa)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
return nil, conn.opErr(op, os.NewSyscallError("bind", err))
|
||||
}
|
||||
|
||||
c, err := sock.prepareIO()
|
||||
if err != nil {
|
||||
return nil, conn.opErr(op, err)
|
||||
}
|
||||
defer sock.wg.Done()
|
||||
var bytes uint32
|
||||
err = windows.ConnectEx(windows.Handle(sock.handle), sa, nil, 0, &bytes, &c.o)
|
||||
_, err = sock.asyncIo(ctx, c, nil, bytes, err)
|
||||
for i := uint(0); i <= d.Retries; i++ {
|
||||
err = socket.ConnectEx(
|
||||
windows.Handle(sock.handle),
|
||||
&sa,
|
||||
nil, // sendBuf
|
||||
0, // sendDataLen
|
||||
&bytes,
|
||||
(*windows.Overlapped)(unsafe.Pointer(&c.o)))
|
||||
_, err = sock.asyncIO(c, nil, bytes, err)
|
||||
if i < d.Retries && canRedial(err) {
|
||||
if err = d.redialWait(ctx); err == nil {
|
||||
continue
|
||||
}
|
||||
}
|
||||
break
|
||||
}
|
||||
if err != nil {
|
||||
return nil, err
|
||||
return nil, conn.opErr(op, os.NewSyscallError("connectex", err))
|
||||
}
|
||||
conn := &HvsockConn{
|
||||
sock: sock,
|
||||
remote: *addr,
|
||||
|
||||
// update the connection properties, so shutdown can be used
|
||||
if err = windows.Setsockopt(
|
||||
windows.Handle(sock.handle),
|
||||
windows.SOL_SOCKET,
|
||||
windows.SO_UPDATE_CONNECT_CONTEXT,
|
||||
nil, // optvalue
|
||||
0, // optlen
|
||||
); err != nil {
|
||||
return nil, conn.opErr(op, os.NewSyscallError("setsockopt", err))
|
||||
}
|
||||
|
||||
// get the local name
|
||||
var sal rawHvsockAddr
|
||||
err = socket.GetSockName(windows.Handle(sock.handle), &sal)
|
||||
if err != nil {
|
||||
return nil, conn.opErr(op, os.NewSyscallError("getsockname", err))
|
||||
}
|
||||
conn.local.fromRaw(&sal)
|
||||
|
||||
// one last check for timeout, since asyncIO doesn't check the context
|
||||
if err = ctx.Err(); err != nil {
|
||||
return nil, conn.opErr(op, err)
|
||||
}
|
||||
|
||||
conn.sock = sock
|
||||
sock = nil
|
||||
|
||||
return conn, nil
|
||||
}
|
||||
*/
|
||||
|
||||
// redialWait waits before attempting to redial, resetting the timer as appropriate.
|
||||
func (d *HvsockDialer) redialWait(ctx context.Context) (err error) {
|
||||
if d.RetryWait == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
if d.rt == nil {
|
||||
d.rt = time.NewTimer(d.RetryWait)
|
||||
} else {
|
||||
// should already be stopped and drained
|
||||
d.rt.Reset(d.RetryWait)
|
||||
}
|
||||
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
case <-d.rt.C:
|
||||
return nil
|
||||
}
|
||||
|
||||
// stop and drain the timer
|
||||
if !d.rt.Stop() {
|
||||
<-d.rt.C
|
||||
}
|
||||
return ctx.Err()
|
||||
}
|
||||
|
||||
// assumes error is a plain, unwrapped syscall.Errno provided by direct syscall.
|
||||
func canRedial(err error) bool {
|
||||
//nolint:errorlint // guaranteed to be an Errno
|
||||
switch err {
|
||||
case windows.WSAECONNREFUSED, windows.WSAENETUNREACH, windows.WSAETIMEDOUT,
|
||||
windows.ERROR_CONNECTION_REFUSED, windows.ERROR_CONNECTION_UNAVAIL:
|
||||
return true
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
func (conn *HvsockConn) opErr(op string, err error) error {
|
||||
// translate from "file closed" to "socket closed"
|
||||
if errors.Is(err, ErrFileClosed) {
|
||||
err = socket.ErrSocketClosed
|
||||
}
|
||||
return &net.OpError{Op: op, Net: "hvsock", Source: &conn.local, Addr: &conn.remote, Err: err}
|
||||
}
|
||||
|
||||
func (conn *HvsockConn) Read(b []byte) (int, error) {
|
||||
c, err := conn.sock.prepareIo()
|
||||
c, err := conn.sock.prepareIO()
|
||||
if err != nil {
|
||||
return 0, conn.opErr("read", err)
|
||||
}
|
||||
@ -203,10 +450,11 @@ func (conn *HvsockConn) Read(b []byte) (int, error) {
|
||||
buf := syscall.WSABuf{Buf: &b[0], Len: uint32(len(b))}
|
||||
var flags, bytes uint32
|
||||
err = syscall.WSARecv(conn.sock.handle, &buf, 1, &bytes, &flags, &c.o, nil)
|
||||
n, err := conn.sock.asyncIo(c, &conn.sock.readDeadline, bytes, err)
|
||||
n, err := conn.sock.asyncIO(c, &conn.sock.readDeadline, bytes, err)
|
||||
if err != nil {
|
||||
if _, ok := err.(syscall.Errno); ok {
|
||||
err = os.NewSyscallError("wsarecv", err)
|
||||
var eno windows.Errno
|
||||
if errors.As(err, &eno) {
|
||||
err = os.NewSyscallError("wsarecv", eno)
|
||||
}
|
||||
return 0, conn.opErr("read", err)
|
||||
} else if n == 0 {
|
||||
@ -229,7 +477,7 @@ func (conn *HvsockConn) Write(b []byte) (int, error) {
|
||||
}
|
||||
|
||||
func (conn *HvsockConn) write(b []byte) (int, error) {
|
||||
c, err := conn.sock.prepareIo()
|
||||
c, err := conn.sock.prepareIO()
|
||||
if err != nil {
|
||||
return 0, conn.opErr("write", err)
|
||||
}
|
||||
@ -237,10 +485,11 @@ func (conn *HvsockConn) write(b []byte) (int, error) {
|
||||
buf := syscall.WSABuf{Buf: &b[0], Len: uint32(len(b))}
|
||||
var bytes uint32
|
||||
err = syscall.WSASend(conn.sock.handle, &buf, 1, &bytes, 0, &c.o, nil)
|
||||
n, err := conn.sock.asyncIo(c, &conn.sock.writeDeadline, bytes, err)
|
||||
n, err := conn.sock.asyncIO(c, &conn.sock.writeDeadline, bytes, err)
|
||||
if err != nil {
|
||||
if _, ok := err.(syscall.Errno); ok {
|
||||
err = os.NewSyscallError("wsasend", err)
|
||||
var eno windows.Errno
|
||||
if errors.As(err, &eno) {
|
||||
err = os.NewSyscallError("wsasend", eno)
|
||||
}
|
||||
return 0, conn.opErr("write", err)
|
||||
}
|
||||
@ -252,29 +501,43 @@ func (conn *HvsockConn) Close() error {
|
||||
return conn.sock.Close()
|
||||
}
|
||||
|
||||
func (conn *HvsockConn) IsClosed() bool {
|
||||
return conn.sock.IsClosed()
|
||||
}
|
||||
|
||||
// shutdown disables sending or receiving on a socket.
|
||||
func (conn *HvsockConn) shutdown(how int) error {
|
||||
err := syscall.Shutdown(conn.sock.handle, syscall.SHUT_RD)
|
||||
if conn.IsClosed() {
|
||||
return socket.ErrSocketClosed
|
||||
}
|
||||
|
||||
err := syscall.Shutdown(conn.sock.handle, how)
|
||||
if err != nil {
|
||||
// If the connection was closed, shutdowns fail with "not connected"
|
||||
if errors.Is(err, windows.WSAENOTCONN) ||
|
||||
errors.Is(err, windows.WSAESHUTDOWN) {
|
||||
err = socket.ErrSocketClosed
|
||||
}
|
||||
return os.NewSyscallError("shutdown", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// CloseRead shuts down the read end of the socket.
|
||||
// CloseRead shuts down the read end of the socket, preventing future read operations.
|
||||
func (conn *HvsockConn) CloseRead() error {
|
||||
err := conn.shutdown(syscall.SHUT_RD)
|
||||
if err != nil {
|
||||
return conn.opErr("close", err)
|
||||
return conn.opErr("closeread", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// CloseWrite shuts down the write end of the socket, notifying the other endpoint that
|
||||
// no more data will be written.
|
||||
// CloseWrite shuts down the write end of the socket, preventing future write operations and
|
||||
// notifying the other endpoint that no more data will be written.
|
||||
func (conn *HvsockConn) CloseWrite() error {
|
||||
err := conn.shutdown(syscall.SHUT_WR)
|
||||
if err != nil {
|
||||
return conn.opErr("close", err)
|
||||
return conn.opErr("closewrite", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
@ -291,8 +554,13 @@ func (conn *HvsockConn) RemoteAddr() net.Addr {
|
||||
|
||||
// SetDeadline implements the net.Conn SetDeadline method.
|
||||
func (conn *HvsockConn) SetDeadline(t time.Time) error {
|
||||
conn.SetReadDeadline(t)
|
||||
conn.SetWriteDeadline(t)
|
||||
// todo: implement `SetDeadline` for `win32File`
|
||||
if err := conn.SetReadDeadline(t); err != nil {
|
||||
return fmt.Errorf("set read deadline: %w", err)
|
||||
}
|
||||
if err := conn.SetWriteDeadline(t); err != nil {
|
||||
return fmt.Errorf("set write deadline: %w", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
|
20
vendor/github.com/Microsoft/go-winio/internal/socket/rawaddr.go
generated
vendored
Normal file
20
vendor/github.com/Microsoft/go-winio/internal/socket/rawaddr.go
generated
vendored
Normal file
@ -0,0 +1,20 @@
|
||||
package socket
|
||||
|
||||
import (
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// RawSockaddr allows structs to be used with [Bind] and [ConnectEx]. The
|
||||
// struct must meet the Win32 sockaddr requirements specified here:
|
||||
// https://docs.microsoft.com/en-us/windows/win32/winsock/sockaddr-2
|
||||
//
|
||||
// Specifically, the struct size must be least larger than an int16 (unsigned short)
|
||||
// for the address family.
|
||||
type RawSockaddr interface {
|
||||
// Sockaddr returns a pointer to the RawSockaddr and its struct size, allowing
|
||||
// for the RawSockaddr's data to be overwritten by syscalls (if necessary).
|
||||
//
|
||||
// It is the callers responsibility to validate that the values are valid; invalid
|
||||
// pointers or size can cause a panic.
|
||||
Sockaddr() (unsafe.Pointer, int32, error)
|
||||
}
|
179
vendor/github.com/Microsoft/go-winio/internal/socket/socket.go
generated
vendored
Normal file
179
vendor/github.com/Microsoft/go-winio/internal/socket/socket.go
generated
vendored
Normal file
@ -0,0 +1,179 @@
|
||||
//go:build windows
|
||||
|
||||
package socket
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"net"
|
||||
"sync"
|
||||
"syscall"
|
||||
"unsafe"
|
||||
|
||||
"github.com/Microsoft/go-winio/pkg/guid"
|
||||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
//go:generate go run github.com/Microsoft/go-winio/tools/mkwinsyscall -output zsyscall_windows.go socket.go
|
||||
|
||||
//sys getsockname(s windows.Handle, name unsafe.Pointer, namelen *int32) (err error) [failretval==socketError] = ws2_32.getsockname
|
||||
//sys getpeername(s windows.Handle, name unsafe.Pointer, namelen *int32) (err error) [failretval==socketError] = ws2_32.getpeername
|
||||
//sys bind(s windows.Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socketError] = ws2_32.bind
|
||||
|
||||
const socketError = uintptr(^uint32(0))
|
||||
|
||||
var (
|
||||
// todo(helsaawy): create custom error types to store the desired vs actual size and addr family?
|
||||
|
||||
ErrBufferSize = errors.New("buffer size")
|
||||
ErrAddrFamily = errors.New("address family")
|
||||
ErrInvalidPointer = errors.New("invalid pointer")
|
||||
ErrSocketClosed = fmt.Errorf("socket closed: %w", net.ErrClosed)
|
||||
)
|
||||
|
||||
// todo(helsaawy): replace these with generics, ie: GetSockName[S RawSockaddr](s windows.Handle) (S, error)
|
||||
|
||||
// GetSockName writes the local address of socket s to the [RawSockaddr] rsa.
|
||||
// If rsa is not large enough, the [windows.WSAEFAULT] is returned.
|
||||
func GetSockName(s windows.Handle, rsa RawSockaddr) error {
|
||||
ptr, l, err := rsa.Sockaddr()
|
||||
if err != nil {
|
||||
return fmt.Errorf("could not retrieve socket pointer and size: %w", err)
|
||||
}
|
||||
|
||||
// although getsockname returns WSAEFAULT if the buffer is too small, it does not set
|
||||
// &l to the correct size, so--apart from doubling the buffer repeatedly--there is no remedy
|
||||
return getsockname(s, ptr, &l)
|
||||
}
|
||||
|
||||
// GetPeerName returns the remote address the socket is connected to.
|
||||
//
|
||||
// See [GetSockName] for more information.
|
||||
func GetPeerName(s windows.Handle, rsa RawSockaddr) error {
|
||||
ptr, l, err := rsa.Sockaddr()
|
||||
if err != nil {
|
||||
return fmt.Errorf("could not retrieve socket pointer and size: %w", err)
|
||||
}
|
||||
|
||||
return getpeername(s, ptr, &l)
|
||||
}
|
||||
|
||||
func Bind(s windows.Handle, rsa RawSockaddr) (err error) {
|
||||
ptr, l, err := rsa.Sockaddr()
|
||||
if err != nil {
|
||||
return fmt.Errorf("could not retrieve socket pointer and size: %w", err)
|
||||
}
|
||||
|
||||
return bind(s, ptr, l)
|
||||
}
|
||||
|
||||
// "golang.org/x/sys/windows".ConnectEx and .Bind only accept internal implementations of the
|
||||
// their sockaddr interface, so they cannot be used with HvsockAddr
|
||||
// Replicate functionality here from
|
||||
// https://cs.opensource.google/go/x/sys/+/master:windows/syscall_windows.go
|
||||
|
||||
// The function pointers to `AcceptEx`, `ConnectEx` and `GetAcceptExSockaddrs` must be loaded at
|
||||
// runtime via a WSAIoctl call:
|
||||
// https://docs.microsoft.com/en-us/windows/win32/api/Mswsock/nc-mswsock-lpfn_connectex#remarks
|
||||
|
||||
type runtimeFunc struct {
|
||||
id guid.GUID
|
||||
once sync.Once
|
||||
addr uintptr
|
||||
err error
|
||||
}
|
||||
|
||||
func (f *runtimeFunc) Load() error {
|
||||
f.once.Do(func() {
|
||||
var s windows.Handle
|
||||
s, f.err = windows.Socket(windows.AF_INET, windows.SOCK_STREAM, windows.IPPROTO_TCP)
|
||||
if f.err != nil {
|
||||
return
|
||||
}
|
||||
defer windows.CloseHandle(s) //nolint:errcheck
|
||||
|
||||
var n uint32
|
||||
f.err = windows.WSAIoctl(s,
|
||||
windows.SIO_GET_EXTENSION_FUNCTION_POINTER,
|
||||
(*byte)(unsafe.Pointer(&f.id)),
|
||||
uint32(unsafe.Sizeof(f.id)),
|
||||
(*byte)(unsafe.Pointer(&f.addr)),
|
||||
uint32(unsafe.Sizeof(f.addr)),
|
||||
&n,
|
||||
nil, //overlapped
|
||||
0, //completionRoutine
|
||||
)
|
||||
})
|
||||
return f.err
|
||||
}
|
||||
|
||||
var (
|
||||
// todo: add `AcceptEx` and `GetAcceptExSockaddrs`
|
||||
WSAID_CONNECTEX = guid.GUID{ //revive:disable-line:var-naming ALL_CAPS
|
||||
Data1: 0x25a207b9,
|
||||
Data2: 0xddf3,
|
||||
Data3: 0x4660,
|
||||
Data4: [8]byte{0x8e, 0xe9, 0x76, 0xe5, 0x8c, 0x74, 0x06, 0x3e},
|
||||
}
|
||||
|
||||
connectExFunc = runtimeFunc{id: WSAID_CONNECTEX}
|
||||
)
|
||||
|
||||
func ConnectEx(
|
||||
fd windows.Handle,
|
||||
rsa RawSockaddr,
|
||||
sendBuf *byte,
|
||||
sendDataLen uint32,
|
||||
bytesSent *uint32,
|
||||
overlapped *windows.Overlapped,
|
||||
) error {
|
||||
if err := connectExFunc.Load(); err != nil {
|
||||
return fmt.Errorf("failed to load ConnectEx function pointer: %w", err)
|
||||
}
|
||||
ptr, n, err := rsa.Sockaddr()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return connectEx(fd, ptr, n, sendBuf, sendDataLen, bytesSent, overlapped)
|
||||
}
|
||||
|
||||
// BOOL LpfnConnectex(
|
||||
// [in] SOCKET s,
|
||||
// [in] const sockaddr *name,
|
||||
// [in] int namelen,
|
||||
// [in, optional] PVOID lpSendBuffer,
|
||||
// [in] DWORD dwSendDataLength,
|
||||
// [out] LPDWORD lpdwBytesSent,
|
||||
// [in] LPOVERLAPPED lpOverlapped
|
||||
// )
|
||||
|
||||
func connectEx(
|
||||
s windows.Handle,
|
||||
name unsafe.Pointer,
|
||||
namelen int32,
|
||||
sendBuf *byte,
|
||||
sendDataLen uint32,
|
||||
bytesSent *uint32,
|
||||
overlapped *windows.Overlapped,
|
||||
) (err error) {
|
||||
// todo: after upgrading to 1.18, switch from syscall.Syscall9 to syscall.SyscallN
|
||||
r1, _, e1 := syscall.Syscall9(connectExFunc.addr,
|
||||
7,
|
||||
uintptr(s),
|
||||
uintptr(name),
|
||||
uintptr(namelen),
|
||||
uintptr(unsafe.Pointer(sendBuf)),
|
||||
uintptr(sendDataLen),
|
||||
uintptr(unsafe.Pointer(bytesSent)),
|
||||
uintptr(unsafe.Pointer(overlapped)),
|
||||
0,
|
||||
0)
|
||||
if r1 == 0 {
|
||||
if e1 != 0 {
|
||||
err = error(e1)
|
||||
} else {
|
||||
err = syscall.EINVAL
|
||||
}
|
||||
}
|
||||
return err
|
||||
}
|
72
vendor/github.com/Microsoft/go-winio/internal/socket/zsyscall_windows.go
generated
vendored
Normal file
72
vendor/github.com/Microsoft/go-winio/internal/socket/zsyscall_windows.go
generated
vendored
Normal file
@ -0,0 +1,72 @@
|
||||
//go:build windows
|
||||
|
||||
// Code generated by 'go generate' using "github.com/Microsoft/go-winio/tools/mkwinsyscall"; DO NOT EDIT.
|
||||
|
||||
package socket
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
"unsafe"
|
||||
|
||||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
var _ unsafe.Pointer
|
||||
|
||||
// Do the interface allocations only once for common
|
||||
// Errno values.
|
||||
const (
|
||||
errnoERROR_IO_PENDING = 997
|
||||
)
|
||||
|
||||
var (
|
||||
errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
|
||||
errERROR_EINVAL error = syscall.EINVAL
|
||||
)
|
||||
|
||||
// errnoErr returns common boxed Errno values, to prevent
|
||||
// allocations at runtime.
|
||||
func errnoErr(e syscall.Errno) error {
|
||||
switch e {
|
||||
case 0:
|
||||
return errERROR_EINVAL
|
||||
case errnoERROR_IO_PENDING:
|
||||
return errERROR_IO_PENDING
|
||||
}
|
||||
// TODO: add more here, after collecting data on the common
|
||||
// error values see on Windows. (perhaps when running
|
||||
// all.bat?)
|
||||
return e
|
||||
}
|
||||
|
||||
var (
|
||||
modws2_32 = windows.NewLazySystemDLL("ws2_32.dll")
|
||||
|
||||
procbind = modws2_32.NewProc("bind")
|
||||
procgetpeername = modws2_32.NewProc("getpeername")
|
||||
procgetsockname = modws2_32.NewProc("getsockname")
|
||||
)
|
||||
|
||||
func bind(s windows.Handle, name unsafe.Pointer, namelen int32) (err error) {
|
||||
r1, _, e1 := syscall.Syscall(procbind.Addr(), 3, uintptr(s), uintptr(name), uintptr(namelen))
|
||||
if r1 == socketError {
|
||||
err = errnoErr(e1)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func getpeername(s windows.Handle, name unsafe.Pointer, namelen *int32) (err error) {
|
||||
r1, _, e1 := syscall.Syscall(procgetpeername.Addr(), 3, uintptr(s), uintptr(name), uintptr(unsafe.Pointer(namelen)))
|
||||
if r1 == socketError {
|
||||
err = errnoErr(e1)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func getsockname(s windows.Handle, name unsafe.Pointer, namelen *int32) (err error) {
|
||||
r1, _, e1 := syscall.Syscall(procgetsockname.Addr(), 3, uintptr(s), uintptr(name), uintptr(unsafe.Pointer(namelen)))
|
||||
if r1 == socketError {
|
||||
err = errnoErr(e1)
|
||||
}
|
||||
return
|
||||
}
|
124
vendor/github.com/Microsoft/go-winio/pipe.go
generated
vendored
124
vendor/github.com/Microsoft/go-winio/pipe.go
generated
vendored
@ -1,3 +1,4 @@
|
||||
//go:build windows
|
||||
// +build windows
|
||||
|
||||
package winio
|
||||
@ -13,6 +14,8 @@ import (
|
||||
"syscall"
|
||||
"time"
|
||||
"unsafe"
|
||||
|
||||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
//sys connectNamedPipe(pipe syscall.Handle, o *syscall.Overlapped) (err error) = ConnectNamedPipe
|
||||
@ -21,10 +24,10 @@ import (
|
||||
//sys getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) = GetNamedPipeInfo
|
||||
//sys getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW
|
||||
//sys localAlloc(uFlags uint32, length uint32) (ptr uintptr) = LocalAlloc
|
||||
//sys ntCreateNamedPipeFile(pipe *syscall.Handle, access uint32, oa *objectAttributes, iosb *ioStatusBlock, share uint32, disposition uint32, options uint32, typ uint32, readMode uint32, completionMode uint32, maxInstances uint32, inboundQuota uint32, outputQuota uint32, timeout *int64) (status ntstatus) = ntdll.NtCreateNamedPipeFile
|
||||
//sys rtlNtStatusToDosError(status ntstatus) (winerr error) = ntdll.RtlNtStatusToDosErrorNoTeb
|
||||
//sys rtlDosPathNameToNtPathName(name *uint16, ntName *unicodeString, filePart uintptr, reserved uintptr) (status ntstatus) = ntdll.RtlDosPathNameToNtPathName_U
|
||||
//sys rtlDefaultNpAcl(dacl *uintptr) (status ntstatus) = ntdll.RtlDefaultNpAcl
|
||||
//sys ntCreateNamedPipeFile(pipe *syscall.Handle, access uint32, oa *objectAttributes, iosb *ioStatusBlock, share uint32, disposition uint32, options uint32, typ uint32, readMode uint32, completionMode uint32, maxInstances uint32, inboundQuota uint32, outputQuota uint32, timeout *int64) (status ntStatus) = ntdll.NtCreateNamedPipeFile
|
||||
//sys rtlNtStatusToDosError(status ntStatus) (winerr error) = ntdll.RtlNtStatusToDosErrorNoTeb
|
||||
//sys rtlDosPathNameToNtPathName(name *uint16, ntName *unicodeString, filePart uintptr, reserved uintptr) (status ntStatus) = ntdll.RtlDosPathNameToNtPathName_U
|
||||
//sys rtlDefaultNpAcl(dacl *uintptr) (status ntStatus) = ntdll.RtlDefaultNpAcl
|
||||
|
||||
type ioStatusBlock struct {
|
||||
Status, Information uintptr
|
||||
@ -51,45 +54,22 @@ type securityDescriptor struct {
|
||||
Control uint16
|
||||
Owner uintptr
|
||||
Group uintptr
|
||||
Sacl uintptr
|
||||
Dacl uintptr
|
||||
Sacl uintptr //revive:disable-line:var-naming SACL, not Sacl
|
||||
Dacl uintptr //revive:disable-line:var-naming DACL, not Dacl
|
||||
}
|
||||
|
||||
type ntstatus int32
|
||||
type ntStatus int32
|
||||
|
||||
func (status ntstatus) Err() error {
|
||||
func (status ntStatus) Err() error {
|
||||
if status >= 0 {
|
||||
return nil
|
||||
}
|
||||
return rtlNtStatusToDosError(status)
|
||||
}
|
||||
|
||||
const (
|
||||
cERROR_PIPE_BUSY = syscall.Errno(231)
|
||||
cERROR_NO_DATA = syscall.Errno(232)
|
||||
cERROR_PIPE_CONNECTED = syscall.Errno(535)
|
||||
cERROR_SEM_TIMEOUT = syscall.Errno(121)
|
||||
|
||||
cSECURITY_SQOS_PRESENT = 0x100000
|
||||
cSECURITY_ANONYMOUS = 0
|
||||
|
||||
cPIPE_TYPE_MESSAGE = 4
|
||||
|
||||
cPIPE_READMODE_MESSAGE = 2
|
||||
|
||||
cFILE_OPEN = 1
|
||||
cFILE_CREATE = 2
|
||||
|
||||
cFILE_PIPE_MESSAGE_TYPE = 1
|
||||
cFILE_PIPE_REJECT_REMOTE_CLIENTS = 2
|
||||
|
||||
cSE_DACL_PRESENT = 4
|
||||
)
|
||||
|
||||
var (
|
||||
// ErrPipeListenerClosed is returned for pipe operations on listeners that have been closed.
|
||||
// This error should match net.errClosing since docker takes a dependency on its text.
|
||||
ErrPipeListenerClosed = errors.New("use of closed network connection")
|
||||
ErrPipeListenerClosed = net.ErrClosed
|
||||
|
||||
errPipeWriteClosed = errors.New("pipe has been closed for write")
|
||||
)
|
||||
@ -116,9 +96,10 @@ func (f *win32Pipe) RemoteAddr() net.Addr {
|
||||
}
|
||||
|
||||
func (f *win32Pipe) SetDeadline(t time.Time) error {
|
||||
f.SetReadDeadline(t)
|
||||
f.SetWriteDeadline(t)
|
||||
return nil
|
||||
if err := f.SetReadDeadline(t); err != nil {
|
||||
return err
|
||||
}
|
||||
return f.SetWriteDeadline(t)
|
||||
}
|
||||
|
||||
// CloseWrite closes the write side of a message pipe in byte mode.
|
||||
@ -157,14 +138,14 @@ func (f *win32MessageBytePipe) Read(b []byte) (int, error) {
|
||||
return 0, io.EOF
|
||||
}
|
||||
n, err := f.win32File.Read(b)
|
||||
if err == io.EOF {
|
||||
if err == io.EOF { //nolint:errorlint
|
||||
// If this was the result of a zero-byte read, then
|
||||
// it is possible that the read was due to a zero-size
|
||||
// message. Since we are simulating CloseWrite with a
|
||||
// zero-byte message, ensure that all future Read() calls
|
||||
// also return EOF.
|
||||
f.readEOF = true
|
||||
} else if err == syscall.ERROR_MORE_DATA {
|
||||
} else if err == syscall.ERROR_MORE_DATA { //nolint:errorlint // err is Errno
|
||||
// ERROR_MORE_DATA indicates that the pipe's read mode is message mode
|
||||
// and the message still has more bytes. Treat this as a success, since
|
||||
// this package presents all named pipes as byte streams.
|
||||
@ -173,7 +154,7 @@ func (f *win32MessageBytePipe) Read(b []byte) (int, error) {
|
||||
return n, err
|
||||
}
|
||||
|
||||
func (s pipeAddress) Network() string {
|
||||
func (pipeAddress) Network() string {
|
||||
return "pipe"
|
||||
}
|
||||
|
||||
@ -184,16 +165,21 @@ func (s pipeAddress) String() string {
|
||||
// tryDialPipe attempts to dial the pipe at `path` until `ctx` cancellation or timeout.
|
||||
func tryDialPipe(ctx context.Context, path *string, access uint32) (syscall.Handle, error) {
|
||||
for {
|
||||
|
||||
select {
|
||||
case <-ctx.Done():
|
||||
return syscall.Handle(0), ctx.Err()
|
||||
default:
|
||||
h, err := createFile(*path, access, 0, nil, syscall.OPEN_EXISTING, syscall.FILE_FLAG_OVERLAPPED|cSECURITY_SQOS_PRESENT|cSECURITY_ANONYMOUS, 0)
|
||||
h, err := createFile(*path,
|
||||
access,
|
||||
0,
|
||||
nil,
|
||||
syscall.OPEN_EXISTING,
|
||||
windows.FILE_FLAG_OVERLAPPED|windows.SECURITY_SQOS_PRESENT|windows.SECURITY_ANONYMOUS,
|
||||
0)
|
||||
if err == nil {
|
||||
return h, nil
|
||||
}
|
||||
if err != cERROR_PIPE_BUSY {
|
||||
if err != windows.ERROR_PIPE_BUSY { //nolint:errorlint // err is Errno
|
||||
return h, &os.PathError{Err: err, Op: "open", Path: *path}
|
||||
}
|
||||
// Wait 10 msec and try again. This is a rather simplistic
|
||||
@ -213,9 +199,10 @@ func DialPipe(path string, timeout *time.Duration) (net.Conn, error) {
|
||||
} else {
|
||||
absTimeout = time.Now().Add(2 * time.Second)
|
||||
}
|
||||
ctx, _ := context.WithDeadline(context.Background(), absTimeout)
|
||||
ctx, cancel := context.WithDeadline(context.Background(), absTimeout)
|
||||
defer cancel()
|
||||
conn, err := DialPipeContext(ctx, path)
|
||||
if err == context.DeadlineExceeded {
|
||||
if errors.Is(err, context.DeadlineExceeded) {
|
||||
return nil, ErrTimeout
|
||||
}
|
||||
return conn, err
|
||||
@ -251,7 +238,7 @@ func DialPipeAccess(ctx context.Context, path string, access uint32) (net.Conn,
|
||||
|
||||
// If the pipe is in message mode, return a message byte pipe, which
|
||||
// supports CloseWrite().
|
||||
if flags&cPIPE_TYPE_MESSAGE != 0 {
|
||||
if flags&windows.PIPE_TYPE_MESSAGE != 0 {
|
||||
return &win32MessageBytePipe{
|
||||
win32Pipe: win32Pipe{win32File: f, path: path},
|
||||
}, nil
|
||||
@ -283,7 +270,11 @@ func makeServerPipeHandle(path string, sd []byte, c *PipeConfig, first bool) (sy
|
||||
oa.Length = unsafe.Sizeof(oa)
|
||||
|
||||
var ntPath unicodeString
|
||||
if err := rtlDosPathNameToNtPathName(&path16[0], &ntPath, 0, 0).Err(); err != nil {
|
||||
if err := rtlDosPathNameToNtPathName(&path16[0],
|
||||
&ntPath,
|
||||
0,
|
||||
0,
|
||||
).Err(); err != nil {
|
||||
return 0, &os.PathError{Op: "open", Path: path, Err: err}
|
||||
}
|
||||
defer localFree(ntPath.Buffer)
|
||||
@ -292,8 +283,8 @@ func makeServerPipeHandle(path string, sd []byte, c *PipeConfig, first bool) (sy
|
||||
// The security descriptor is only needed for the first pipe.
|
||||
if first {
|
||||
if sd != nil {
|
||||
len := uint32(len(sd))
|
||||
sdb := localAlloc(0, len)
|
||||
l := uint32(len(sd))
|
||||
sdb := localAlloc(0, l)
|
||||
defer localFree(sdb)
|
||||
copy((*[0xffff]byte)(unsafe.Pointer(sdb))[:], sd)
|
||||
oa.SecurityDescriptor = (*securityDescriptor)(unsafe.Pointer(sdb))
|
||||
@ -301,28 +292,28 @@ func makeServerPipeHandle(path string, sd []byte, c *PipeConfig, first bool) (sy
|
||||
// Construct the default named pipe security descriptor.
|
||||
var dacl uintptr
|
||||
if err := rtlDefaultNpAcl(&dacl).Err(); err != nil {
|
||||
return 0, fmt.Errorf("getting default named pipe ACL: %s", err)
|
||||
return 0, fmt.Errorf("getting default named pipe ACL: %w", err)
|
||||
}
|
||||
defer localFree(dacl)
|
||||
|
||||
sdb := &securityDescriptor{
|
||||
Revision: 1,
|
||||
Control: cSE_DACL_PRESENT,
|
||||
Control: windows.SE_DACL_PRESENT,
|
||||
Dacl: dacl,
|
||||
}
|
||||
oa.SecurityDescriptor = sdb
|
||||
}
|
||||
}
|
||||
|
||||
typ := uint32(cFILE_PIPE_REJECT_REMOTE_CLIENTS)
|
||||
typ := uint32(windows.FILE_PIPE_REJECT_REMOTE_CLIENTS)
|
||||
if c.MessageMode {
|
||||
typ |= cFILE_PIPE_MESSAGE_TYPE
|
||||
typ |= windows.FILE_PIPE_MESSAGE_TYPE
|
||||
}
|
||||
|
||||
disposition := uint32(cFILE_OPEN)
|
||||
disposition := uint32(windows.FILE_OPEN)
|
||||
access := uint32(syscall.GENERIC_READ | syscall.GENERIC_WRITE | syscall.SYNCHRONIZE)
|
||||
if first {
|
||||
disposition = cFILE_CREATE
|
||||
disposition = windows.FILE_CREATE
|
||||
// By not asking for read or write access, the named pipe file system
|
||||
// will put this pipe into an initially disconnected state, blocking
|
||||
// client connections until the next call with first == false.
|
||||
@ -335,7 +326,20 @@ func makeServerPipeHandle(path string, sd []byte, c *PipeConfig, first bool) (sy
|
||||
h syscall.Handle
|
||||
iosb ioStatusBlock
|
||||
)
|
||||
err = ntCreateNamedPipeFile(&h, access, &oa, &iosb, syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE, disposition, 0, typ, 0, 0, 0xffffffff, uint32(c.InputBufferSize), uint32(c.OutputBufferSize), &timeout).Err()
|
||||
err = ntCreateNamedPipeFile(&h,
|
||||
access,
|
||||
&oa,
|
||||
&iosb,
|
||||
syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE,
|
||||
disposition,
|
||||
0,
|
||||
typ,
|
||||
0,
|
||||
0,
|
||||
0xffffffff,
|
||||
uint32(c.InputBufferSize),
|
||||
uint32(c.OutputBufferSize),
|
||||
&timeout).Err()
|
||||
if err != nil {
|
||||
return 0, &os.PathError{Op: "open", Path: path, Err: err}
|
||||
}
|
||||
@ -380,7 +384,7 @@ func (l *win32PipeListener) makeConnectedServerPipe() (*win32File, error) {
|
||||
p.Close()
|
||||
p = nil
|
||||
err = <-ch
|
||||
if err == nil || err == ErrFileClosed {
|
||||
if err == nil || err == ErrFileClosed { //nolint:errorlint // err is Errno
|
||||
err = ErrPipeListenerClosed
|
||||
}
|
||||
}
|
||||
@ -402,12 +406,12 @@ func (l *win32PipeListener) listenerRoutine() {
|
||||
p, err = l.makeConnectedServerPipe()
|
||||
// If the connection was immediately closed by the client, try
|
||||
// again.
|
||||
if err != cERROR_NO_DATA {
|
||||
if err != windows.ERROR_NO_DATA { //nolint:errorlint // err is Errno
|
||||
break
|
||||
}
|
||||
}
|
||||
responseCh <- acceptResponse{p, err}
|
||||
closed = err == ErrPipeListenerClosed
|
||||
closed = err == ErrPipeListenerClosed //nolint:errorlint // err is Errno
|
||||
}
|
||||
}
|
||||
syscall.Close(l.firstHandle)
|
||||
@ -469,15 +473,15 @@ func ListenPipe(path string, c *PipeConfig) (net.Listener, error) {
|
||||
}
|
||||
|
||||
func connectPipe(p *win32File) error {
|
||||
c, err := p.prepareIo()
|
||||
c, err := p.prepareIO()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer p.wg.Done()
|
||||
|
||||
err = connectNamedPipe(p.handle, &c.o)
|
||||
_, err = p.asyncIo(c, nil, 0, err)
|
||||
if err != nil && err != cERROR_PIPE_CONNECTED {
|
||||
_, err = p.asyncIO(c, nil, 0, err)
|
||||
if err != nil && err != windows.ERROR_PIPE_CONNECTED { //nolint:errorlint // err is Errno
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
|
25
vendor/github.com/Microsoft/go-winio/pkg/guid/guid.go
generated
vendored
25
vendor/github.com/Microsoft/go-winio/pkg/guid/guid.go
generated
vendored
@ -1,5 +1,3 @@
|
||||
// +build windows
|
||||
|
||||
// Package guid provides a GUID type. The backing structure for a GUID is
|
||||
// identical to that used by the golang.org/x/sys/windows GUID type.
|
||||
// There are two main binary encodings used for a GUID, the big-endian encoding,
|
||||
@ -9,26 +7,26 @@ package guid
|
||||
|
||||
import (
|
||||
"crypto/rand"
|
||||
"crypto/sha1"
|
||||
"crypto/sha1" //nolint:gosec // not used for secure application
|
||||
"encoding"
|
||||
"encoding/binary"
|
||||
"fmt"
|
||||
"strconv"
|
||||
|
||||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
//go:generate go run golang.org/x/tools/cmd/stringer -type=Variant -trimprefix=Variant -linecomment
|
||||
|
||||
// Variant specifies which GUID variant (or "type") of the GUID. It determines
|
||||
// how the entirety of the rest of the GUID is interpreted.
|
||||
type Variant uint8
|
||||
|
||||
// The variants specified by RFC 4122.
|
||||
// The variants specified by RFC 4122 section 4.1.1.
|
||||
const (
|
||||
// VariantUnknown specifies a GUID variant which does not conform to one of
|
||||
// the variant encodings specified in RFC 4122.
|
||||
VariantUnknown Variant = iota
|
||||
VariantNCS
|
||||
VariantRFC4122
|
||||
VariantRFC4122 // RFC 4122
|
||||
VariantMicrosoft
|
||||
VariantFuture
|
||||
)
|
||||
@ -38,16 +36,13 @@ const (
|
||||
// hash of an input string.
|
||||
type Version uint8
|
||||
|
||||
func (v Version) String() string {
|
||||
return strconv.FormatUint(uint64(v), 10)
|
||||
}
|
||||
|
||||
var _ = (encoding.TextMarshaler)(GUID{})
|
||||
var _ = (encoding.TextUnmarshaler)(&GUID{})
|
||||
|
||||
// GUID represents a GUID/UUID. It has the same structure as
|
||||
// golang.org/x/sys/windows.GUID so that it can be used with functions expecting
|
||||
// that type. It is defined as its own type so that stringification and
|
||||
// marshaling can be supported. The representation matches that used by native
|
||||
// Windows code.
|
||||
type GUID windows.GUID
|
||||
|
||||
// NewV4 returns a new version 4 (pseudorandom) GUID, as defined by RFC 4122.
|
||||
func NewV4() (GUID, error) {
|
||||
var b [16]byte
|
||||
@ -70,7 +65,7 @@ func NewV4() (GUID, error) {
|
||||
// big-endian UTF16 stream of bytes. If that is desired, the string can be
|
||||
// encoded as such before being passed to this function.
|
||||
func NewV5(namespace GUID, name []byte) (GUID, error) {
|
||||
b := sha1.New()
|
||||
b := sha1.New() //nolint:gosec // not used for secure application
|
||||
namespaceBytes := namespace.ToArray()
|
||||
b.Write(namespaceBytes[:])
|
||||
b.Write(name)
|
||||
|
16
vendor/github.com/Microsoft/go-winio/pkg/guid/guid_nonwindows.go
generated
vendored
Normal file
16
vendor/github.com/Microsoft/go-winio/pkg/guid/guid_nonwindows.go
generated
vendored
Normal file
@ -0,0 +1,16 @@
|
||||
//go:build !windows
|
||||
// +build !windows
|
||||
|
||||
package guid
|
||||
|
||||
// GUID represents a GUID/UUID. It has the same structure as
|
||||
// golang.org/x/sys/windows.GUID so that it can be used with functions expecting
|
||||
// that type. It is defined as its own type as that is only available to builds
|
||||
// targeted at `windows`. The representation matches that used by native Windows
|
||||
// code.
|
||||
type GUID struct {
|
||||
Data1 uint32
|
||||
Data2 uint16
|
||||
Data3 uint16
|
||||
Data4 [8]byte
|
||||
}
|
13
vendor/github.com/Microsoft/go-winio/pkg/guid/guid_windows.go
generated
vendored
Normal file
13
vendor/github.com/Microsoft/go-winio/pkg/guid/guid_windows.go
generated
vendored
Normal file
@ -0,0 +1,13 @@
|
||||
//go:build windows
|
||||
// +build windows
|
||||
|
||||
package guid
|
||||
|
||||
import "golang.org/x/sys/windows"
|
||||
|
||||
// GUID represents a GUID/UUID. It has the same structure as
|
||||
// golang.org/x/sys/windows.GUID so that it can be used with functions expecting
|
||||
// that type. It is defined as its own type so that stringification and
|
||||
// marshaling can be supported. The representation matches that used by native
|
||||
// Windows code.
|
||||
type GUID windows.GUID
|
27
vendor/github.com/Microsoft/go-winio/pkg/guid/variant_string.go
generated
vendored
Normal file
27
vendor/github.com/Microsoft/go-winio/pkg/guid/variant_string.go
generated
vendored
Normal file
@ -0,0 +1,27 @@
|
||||
// Code generated by "stringer -type=Variant -trimprefix=Variant -linecomment"; DO NOT EDIT.
|
||||
|
||||
package guid
|
||||
|
||||
import "strconv"
|
||||
|
||||
func _() {
|
||||
// An "invalid array index" compiler error signifies that the constant values have changed.
|
||||
// Re-run the stringer command to generate them again.
|
||||
var x [1]struct{}
|
||||
_ = x[VariantUnknown-0]
|
||||
_ = x[VariantNCS-1]
|
||||
_ = x[VariantRFC4122-2]
|
||||
_ = x[VariantMicrosoft-3]
|
||||
_ = x[VariantFuture-4]
|
||||
}
|
||||
|
||||
const _Variant_name = "UnknownNCSRFC 4122MicrosoftFuture"
|
||||
|
||||
var _Variant_index = [...]uint8{0, 7, 10, 18, 27, 33}
|
||||
|
||||
func (i Variant) String() string {
|
||||
if i >= Variant(len(_Variant_index)-1) {
|
||||
return "Variant(" + strconv.FormatInt(int64(i), 10) + ")"
|
||||
}
|
||||
return _Variant_name[_Variant_index[i]:_Variant_index[i+1]]
|
||||
}
|
44
vendor/github.com/Microsoft/go-winio/pkg/security/grantvmgroupaccess.go
generated
vendored
44
vendor/github.com/Microsoft/go-winio/pkg/security/grantvmgroupaccess.go
generated
vendored
@ -1,13 +1,13 @@
|
||||
//go:build windows
|
||||
// +build windows
|
||||
|
||||
package security
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
"syscall"
|
||||
"unsafe"
|
||||
|
||||
"github.com/pkg/errors"
|
||||
)
|
||||
|
||||
type (
|
||||
@ -21,6 +21,7 @@ type (
|
||||
trusteeForm uint32
|
||||
trusteeType uint32
|
||||
|
||||
//nolint:structcheck // structcheck thinks fields are unused, but the are used to pass data to OS
|
||||
explicitAccess struct {
|
||||
accessPermissions accessMask
|
||||
accessMode accessMode
|
||||
@ -28,6 +29,7 @@ type (
|
||||
trustee trustee
|
||||
}
|
||||
|
||||
//nolint:structcheck,unused // structcheck thinks fields are unused, but the are used to pass data to OS
|
||||
trustee struct {
|
||||
multipleTrustee *trustee
|
||||
multipleTrusteeOperation int32
|
||||
@ -45,6 +47,7 @@ const (
|
||||
desiredAccessReadControl desiredAccess = 0x20000
|
||||
desiredAccessWriteDac desiredAccess = 0x40000
|
||||
|
||||
//cspell:disable-next-line
|
||||
gvmga = "GrantVmGroupAccess:"
|
||||
|
||||
inheritModeNoInheritance inheritMode = 0x0
|
||||
@ -57,9 +60,9 @@ const (
|
||||
shareModeRead shareMode = 0x1
|
||||
shareModeWrite shareMode = 0x2
|
||||
|
||||
sidVmGroup = "S-1-5-83-0"
|
||||
sidVMGroup = "S-1-5-83-0"
|
||||
|
||||
trusteeFormIsSid trusteeForm = 0
|
||||
trusteeFormIsSID trusteeForm = 0
|
||||
|
||||
trusteeTypeWellKnownGroup trusteeType = 5
|
||||
)
|
||||
@ -68,11 +71,13 @@ const (
|
||||
// include Grant ACE entries for the VM Group SID. This is a golang re-
|
||||
// implementation of the same function in vmcompute, just not exported in
|
||||
// RS5. Which kind of sucks. Sucks a lot :/
|
||||
//
|
||||
//revive:disable-next-line:var-naming VM, not Vm
|
||||
func GrantVmGroupAccess(name string) error {
|
||||
// Stat (to determine if `name` is a directory).
|
||||
s, err := os.Stat(name)
|
||||
if err != nil {
|
||||
return errors.Wrapf(err, "%s os.Stat %s", gvmga, name)
|
||||
return fmt.Errorf("%s os.Stat %s: %w", gvmga, name, err)
|
||||
}
|
||||
|
||||
// Get a handle to the file/directory. Must defer Close on success.
|
||||
@ -80,7 +85,7 @@ func GrantVmGroupAccess(name string) error {
|
||||
if err != nil {
|
||||
return err // Already wrapped
|
||||
}
|
||||
defer syscall.CloseHandle(fd)
|
||||
defer syscall.CloseHandle(fd) //nolint:errcheck
|
||||
|
||||
// Get the current DACL and Security Descriptor. Must defer LocalFree on success.
|
||||
ot := objectTypeFileObject
|
||||
@ -88,9 +93,9 @@ func GrantVmGroupAccess(name string) error {
|
||||
sd := uintptr(0)
|
||||
origDACL := uintptr(0)
|
||||
if err := getSecurityInfo(fd, uint32(ot), uint32(si), nil, nil, &origDACL, nil, &sd); err != nil {
|
||||
return errors.Wrapf(err, "%s GetSecurityInfo %s", gvmga, name)
|
||||
return fmt.Errorf("%s GetSecurityInfo %s: %w", gvmga, name, err)
|
||||
}
|
||||
defer syscall.LocalFree((syscall.Handle)(unsafe.Pointer(sd)))
|
||||
defer syscall.LocalFree((syscall.Handle)(unsafe.Pointer(sd))) //nolint:errcheck
|
||||
|
||||
// Generate a new DACL which is the current DACL with the required ACEs added.
|
||||
// Must defer LocalFree on success.
|
||||
@ -98,11 +103,11 @@ func GrantVmGroupAccess(name string) error {
|
||||
if err != nil {
|
||||
return err // Already wrapped
|
||||
}
|
||||
defer syscall.LocalFree((syscall.Handle)(unsafe.Pointer(newDACL)))
|
||||
defer syscall.LocalFree((syscall.Handle)(unsafe.Pointer(newDACL))) //nolint:errcheck
|
||||
|
||||
// And finally use SetSecurityInfo to apply the updated DACL.
|
||||
if err := setSecurityInfo(fd, uint32(ot), uint32(si), uintptr(0), uintptr(0), newDACL, uintptr(0)); err != nil {
|
||||
return errors.Wrapf(err, "%s SetSecurityInfo %s", gvmga, name)
|
||||
return fmt.Errorf("%s SetSecurityInfo %s: %w", gvmga, name, err)
|
||||
}
|
||||
|
||||
return nil
|
||||
@ -111,16 +116,19 @@ func GrantVmGroupAccess(name string) error {
|
||||
// createFile is a helper function to call [Nt]CreateFile to get a handle to
|
||||
// the file or directory.
|
||||
func createFile(name string, isDir bool) (syscall.Handle, error) {
|
||||
namep := syscall.StringToUTF16(name)
|
||||
namep, err := syscall.UTF16FromString(name)
|
||||
if err != nil {
|
||||
return syscall.InvalidHandle, fmt.Errorf("could not convernt name to UTF-16: %w", err)
|
||||
}
|
||||
da := uint32(desiredAccessReadControl | desiredAccessWriteDac)
|
||||
sm := uint32(shareModeRead | shareModeWrite)
|
||||
fa := uint32(syscall.FILE_ATTRIBUTE_NORMAL)
|
||||
if isDir {
|
||||
fa = uint32(fa | syscall.FILE_FLAG_BACKUP_SEMANTICS)
|
||||
fa |= syscall.FILE_FLAG_BACKUP_SEMANTICS
|
||||
}
|
||||
fd, err := syscall.CreateFile(&namep[0], da, sm, nil, syscall.OPEN_EXISTING, fa, 0)
|
||||
if err != nil {
|
||||
return 0, errors.Wrapf(err, "%s syscall.CreateFile %s", gvmga, name)
|
||||
return syscall.InvalidHandle, fmt.Errorf("%s syscall.CreateFile %s: %w", gvmga, name, err)
|
||||
}
|
||||
return fd, nil
|
||||
}
|
||||
@ -129,9 +137,9 @@ func createFile(name string, isDir bool) (syscall.Handle, error) {
|
||||
// The caller is responsible for LocalFree of the returned DACL on success.
|
||||
func generateDACLWithAcesAdded(name string, isDir bool, origDACL uintptr) (uintptr, error) {
|
||||
// Generate pointers to the SIDs based on the string SIDs
|
||||
sid, err := syscall.StringToSid(sidVmGroup)
|
||||
sid, err := syscall.StringToSid(sidVMGroup)
|
||||
if err != nil {
|
||||
return 0, errors.Wrapf(err, "%s syscall.StringToSid %s %s", gvmga, name, sidVmGroup)
|
||||
return 0, fmt.Errorf("%s syscall.StringToSid %s %s: %w", gvmga, name, sidVMGroup, err)
|
||||
}
|
||||
|
||||
inheritance := inheritModeNoInheritance
|
||||
@ -140,12 +148,12 @@ func generateDACLWithAcesAdded(name string, isDir bool, origDACL uintptr) (uintp
|
||||
}
|
||||
|
||||
eaArray := []explicitAccess{
|
||||
explicitAccess{
|
||||
{
|
||||
accessPermissions: accessMaskDesiredPermission,
|
||||
accessMode: accessModeGrant,
|
||||
inheritance: inheritance,
|
||||
trustee: trustee{
|
||||
trusteeForm: trusteeFormIsSid,
|
||||
trusteeForm: trusteeFormIsSID,
|
||||
trusteeType: trusteeTypeWellKnownGroup,
|
||||
name: uintptr(unsafe.Pointer(sid)),
|
||||
},
|
||||
@ -154,7 +162,7 @@ func generateDACLWithAcesAdded(name string, isDir bool, origDACL uintptr) (uintp
|
||||
|
||||
modifiedDACL := uintptr(0)
|
||||
if err := setEntriesInAcl(uintptr(uint32(1)), uintptr(unsafe.Pointer(&eaArray[0])), origDACL, &modifiedDACL); err != nil {
|
||||
return 0, errors.Wrapf(err, "%s SetEntriesInAcl %s", gvmga, name)
|
||||
return 0, fmt.Errorf("%s SetEntriesInAcl %s: %w", gvmga, name, err)
|
||||
}
|
||||
|
||||
return modifiedDACL, nil
|
||||
|
8
vendor/github.com/Microsoft/go-winio/pkg/security/syscall_windows.go
generated
vendored
8
vendor/github.com/Microsoft/go-winio/pkg/security/syscall_windows.go
generated
vendored
@ -1,7 +1,7 @@
|
||||
package security
|
||||
|
||||
//go:generate go run mksyscall_windows.go -output zsyscall_windows.go syscall_windows.go
|
||||
//go:generate go run github.com/Microsoft/go-winio/tools/mkwinsyscall -output zsyscall_windows.go syscall_windows.go
|
||||
|
||||
//sys getSecurityInfo(handle syscall.Handle, objectType uint32, si uint32, ppsidOwner **uintptr, ppsidGroup **uintptr, ppDacl *uintptr, ppSacl *uintptr, ppSecurityDescriptor *uintptr) (err error) [failretval!=0] = advapi32.GetSecurityInfo
|
||||
//sys setSecurityInfo(handle syscall.Handle, objectType uint32, si uint32, psidOwner uintptr, psidGroup uintptr, pDacl uintptr, pSacl uintptr) (err error) [failretval!=0] = advapi32.SetSecurityInfo
|
||||
//sys setEntriesInAcl(count uintptr, pListOfEEs uintptr, oldAcl uintptr, newAcl *uintptr) (err error) [failretval!=0] = advapi32.SetEntriesInAclW
|
||||
//sys getSecurityInfo(handle syscall.Handle, objectType uint32, si uint32, ppsidOwner **uintptr, ppsidGroup **uintptr, ppDacl *uintptr, ppSacl *uintptr, ppSecurityDescriptor *uintptr) (win32err error) = advapi32.GetSecurityInfo
|
||||
//sys setSecurityInfo(handle syscall.Handle, objectType uint32, si uint32, psidOwner uintptr, psidGroup uintptr, pDacl uintptr, pSacl uintptr) (win32err error) = advapi32.SetSecurityInfo
|
||||
//sys setEntriesInAcl(count uintptr, pListOfEEs uintptr, oldAcl uintptr, newAcl *uintptr) (win32err error) = advapi32.SetEntriesInAclW
|
||||
|
28
vendor/github.com/Microsoft/go-winio/pkg/security/zsyscall_windows.go
generated
vendored
28
vendor/github.com/Microsoft/go-winio/pkg/security/zsyscall_windows.go
generated
vendored
@ -1,4 +1,6 @@
|
||||
// Code generated by 'go generate'; DO NOT EDIT.
|
||||
//go:build windows
|
||||
|
||||
// Code generated by 'go generate' using "github.com/Microsoft/go-winio/tools/mkwinsyscall"; DO NOT EDIT.
|
||||
|
||||
package security
|
||||
|
||||
@ -45,26 +47,26 @@ var (
|
||||
procSetSecurityInfo = modadvapi32.NewProc("SetSecurityInfo")
|
||||
)
|
||||
|
||||
func getSecurityInfo(handle syscall.Handle, objectType uint32, si uint32, ppsidOwner **uintptr, ppsidGroup **uintptr, ppDacl *uintptr, ppSacl *uintptr, ppSecurityDescriptor *uintptr) (err error) {
|
||||
r1, _, e1 := syscall.Syscall9(procGetSecurityInfo.Addr(), 8, uintptr(handle), uintptr(objectType), uintptr(si), uintptr(unsafe.Pointer(ppsidOwner)), uintptr(unsafe.Pointer(ppsidGroup)), uintptr(unsafe.Pointer(ppDacl)), uintptr(unsafe.Pointer(ppSacl)), uintptr(unsafe.Pointer(ppSecurityDescriptor)), 0)
|
||||
if r1 != 0 {
|
||||
err = errnoErr(e1)
|
||||
func getSecurityInfo(handle syscall.Handle, objectType uint32, si uint32, ppsidOwner **uintptr, ppsidGroup **uintptr, ppDacl *uintptr, ppSacl *uintptr, ppSecurityDescriptor *uintptr) (win32err error) {
|
||||
r0, _, _ := syscall.Syscall9(procGetSecurityInfo.Addr(), 8, uintptr(handle), uintptr(objectType), uintptr(si), uintptr(unsafe.Pointer(ppsidOwner)), uintptr(unsafe.Pointer(ppsidGroup)), uintptr(unsafe.Pointer(ppDacl)), uintptr(unsafe.Pointer(ppSacl)), uintptr(unsafe.Pointer(ppSecurityDescriptor)), 0)
|
||||
if r0 != 0 {
|
||||
win32err = syscall.Errno(r0)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func setEntriesInAcl(count uintptr, pListOfEEs uintptr, oldAcl uintptr, newAcl *uintptr) (err error) {
|
||||
r1, _, e1 := syscall.Syscall6(procSetEntriesInAclW.Addr(), 4, uintptr(count), uintptr(pListOfEEs), uintptr(oldAcl), uintptr(unsafe.Pointer(newAcl)), 0, 0)
|
||||
if r1 != 0 {
|
||||
err = errnoErr(e1)
|
||||
func setEntriesInAcl(count uintptr, pListOfEEs uintptr, oldAcl uintptr, newAcl *uintptr) (win32err error) {
|
||||
r0, _, _ := syscall.Syscall6(procSetEntriesInAclW.Addr(), 4, uintptr(count), uintptr(pListOfEEs), uintptr(oldAcl), uintptr(unsafe.Pointer(newAcl)), 0, 0)
|
||||
if r0 != 0 {
|
||||
win32err = syscall.Errno(r0)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func setSecurityInfo(handle syscall.Handle, objectType uint32, si uint32, psidOwner uintptr, psidGroup uintptr, pDacl uintptr, pSacl uintptr) (err error) {
|
||||
r1, _, e1 := syscall.Syscall9(procSetSecurityInfo.Addr(), 7, uintptr(handle), uintptr(objectType), uintptr(si), uintptr(psidOwner), uintptr(psidGroup), uintptr(pDacl), uintptr(pSacl), 0, 0)
|
||||
if r1 != 0 {
|
||||
err = errnoErr(e1)
|
||||
func setSecurityInfo(handle syscall.Handle, objectType uint32, si uint32, psidOwner uintptr, psidGroup uintptr, pDacl uintptr, pSacl uintptr) (win32err error) {
|
||||
r0, _, _ := syscall.Syscall9(procSetSecurityInfo.Addr(), 7, uintptr(handle), uintptr(objectType), uintptr(si), uintptr(psidOwner), uintptr(psidGroup), uintptr(pDacl), uintptr(pSacl), 0, 0)
|
||||
if r0 != 0 {
|
||||
win32err = syscall.Errno(r0)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
37
vendor/github.com/Microsoft/go-winio/privilege.go
generated
vendored
37
vendor/github.com/Microsoft/go-winio/privilege.go
generated
vendored
@ -1,3 +1,4 @@
|
||||
//go:build windows
|
||||
// +build windows
|
||||
|
||||
package winio
|
||||
@ -24,19 +25,15 @@ import (
|
||||
//sys lookupPrivilegeDisplayName(systemName string, name *uint16, buffer *uint16, size *uint32, languageId *uint32) (err error) = advapi32.LookupPrivilegeDisplayNameW
|
||||
|
||||
const (
|
||||
SE_PRIVILEGE_ENABLED = 2
|
||||
//revive:disable-next-line:var-naming ALL_CAPS
|
||||
SE_PRIVILEGE_ENABLED = windows.SE_PRIVILEGE_ENABLED
|
||||
|
||||
ERROR_NOT_ALL_ASSIGNED syscall.Errno = 1300
|
||||
//revive:disable-next-line:var-naming ALL_CAPS
|
||||
ERROR_NOT_ALL_ASSIGNED syscall.Errno = windows.ERROR_NOT_ALL_ASSIGNED
|
||||
|
||||
SeBackupPrivilege = "SeBackupPrivilege"
|
||||
SeRestorePrivilege = "SeRestorePrivilege"
|
||||
)
|
||||
|
||||
const (
|
||||
securityAnonymous = iota
|
||||
securityIdentification
|
||||
securityImpersonation
|
||||
securityDelegation
|
||||
SeBackupPrivilege = "SeBackupPrivilege"
|
||||
SeRestorePrivilege = "SeRestorePrivilege"
|
||||
SeSecurityPrivilege = "SeSecurityPrivilege"
|
||||
)
|
||||
|
||||
var (
|
||||
@ -50,11 +47,9 @@ type PrivilegeError struct {
|
||||
}
|
||||
|
||||
func (e *PrivilegeError) Error() string {
|
||||
s := ""
|
||||
s := "Could not enable privilege "
|
||||
if len(e.privileges) > 1 {
|
||||
s = "Could not enable privileges "
|
||||
} else {
|
||||
s = "Could not enable privilege "
|
||||
}
|
||||
for i, p := range e.privileges {
|
||||
if i != 0 {
|
||||
@ -93,7 +88,7 @@ func RunWithPrivileges(names []string, fn func() error) error {
|
||||
}
|
||||
|
||||
func mapPrivileges(names []string) ([]uint64, error) {
|
||||
var privileges []uint64
|
||||
privileges := make([]uint64, 0, len(names))
|
||||
privNameMutex.Lock()
|
||||
defer privNameMutex.Unlock()
|
||||
for _, name := range names {
|
||||
@ -126,7 +121,7 @@ func enableDisableProcessPrivilege(names []string, action uint32) error {
|
||||
return err
|
||||
}
|
||||
|
||||
p, _ := windows.GetCurrentProcess()
|
||||
p := windows.CurrentProcess()
|
||||
var token windows.Token
|
||||
err = windows.OpenProcessToken(p, windows.TOKEN_ADJUST_PRIVILEGES|windows.TOKEN_QUERY, &token)
|
||||
if err != nil {
|
||||
@ -139,10 +134,10 @@ func enableDisableProcessPrivilege(names []string, action uint32) error {
|
||||
|
||||
func adjustPrivileges(token windows.Token, privileges []uint64, action uint32) error {
|
||||
var b bytes.Buffer
|
||||
binary.Write(&b, binary.LittleEndian, uint32(len(privileges)))
|
||||
_ = binary.Write(&b, binary.LittleEndian, uint32(len(privileges)))
|
||||
for _, p := range privileges {
|
||||
binary.Write(&b, binary.LittleEndian, p)
|
||||
binary.Write(&b, binary.LittleEndian, action)
|
||||
_ = binary.Write(&b, binary.LittleEndian, p)
|
||||
_ = binary.Write(&b, binary.LittleEndian, action)
|
||||
}
|
||||
prevState := make([]byte, b.Len())
|
||||
reqSize := uint32(0)
|
||||
@ -150,7 +145,7 @@ func adjustPrivileges(token windows.Token, privileges []uint64, action uint32) e
|
||||
if !success {
|
||||
return err
|
||||
}
|
||||
if err == ERROR_NOT_ALL_ASSIGNED {
|
||||
if err == ERROR_NOT_ALL_ASSIGNED { //nolint:errorlint // err is Errno
|
||||
return &PrivilegeError{privileges}
|
||||
}
|
||||
return nil
|
||||
@ -176,7 +171,7 @@ func getPrivilegeName(luid uint64) string {
|
||||
}
|
||||
|
||||
func newThreadToken() (windows.Token, error) {
|
||||
err := impersonateSelf(securityImpersonation)
|
||||
err := impersonateSelf(windows.SecurityImpersonation)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
11
vendor/github.com/Microsoft/go-winio/reparse.go
generated
vendored
11
vendor/github.com/Microsoft/go-winio/reparse.go
generated
vendored
@ -1,3 +1,6 @@
|
||||
//go:build windows
|
||||
// +build windows
|
||||
|
||||
package winio
|
||||
|
||||
import (
|
||||
@ -113,16 +116,16 @@ func EncodeReparsePoint(rp *ReparsePoint) []byte {
|
||||
}
|
||||
|
||||
var b bytes.Buffer
|
||||
binary.Write(&b, binary.LittleEndian, &data)
|
||||
_ = binary.Write(&b, binary.LittleEndian, &data)
|
||||
if !rp.IsMountPoint {
|
||||
flags := uint32(0)
|
||||
if relative {
|
||||
flags |= 1
|
||||
}
|
||||
binary.Write(&b, binary.LittleEndian, flags)
|
||||
_ = binary.Write(&b, binary.LittleEndian, flags)
|
||||
}
|
||||
|
||||
binary.Write(&b, binary.LittleEndian, ntTarget16)
|
||||
binary.Write(&b, binary.LittleEndian, target16)
|
||||
_ = binary.Write(&b, binary.LittleEndian, ntTarget16)
|
||||
_ = binary.Write(&b, binary.LittleEndian, target16)
|
||||
return b.Bytes()
|
||||
}
|
||||
|
64
vendor/github.com/Microsoft/go-winio/sd.go
generated
vendored
64
vendor/github.com/Microsoft/go-winio/sd.go
generated
vendored
@ -1,23 +1,25 @@
|
||||
//go:build windows
|
||||
// +build windows
|
||||
|
||||
package winio
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"syscall"
|
||||
"unsafe"
|
||||
|
||||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
//sys lookupAccountName(systemName *uint16, accountName string, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) = advapi32.LookupAccountNameW
|
||||
//sys lookupAccountSid(systemName *uint16, sid *byte, name *uint16, nameSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) = advapi32.LookupAccountSidW
|
||||
//sys convertSidToStringSid(sid *byte, str **uint16) (err error) = advapi32.ConvertSidToStringSidW
|
||||
//sys convertStringSidToSid(str *uint16, sid **byte) (err error) = advapi32.ConvertStringSidToSidW
|
||||
//sys convertStringSecurityDescriptorToSecurityDescriptor(str string, revision uint32, sd *uintptr, size *uint32) (err error) = advapi32.ConvertStringSecurityDescriptorToSecurityDescriptorW
|
||||
//sys convertSecurityDescriptorToStringSecurityDescriptor(sd *byte, revision uint32, secInfo uint32, sddl **uint16, sddlSize *uint32) (err error) = advapi32.ConvertSecurityDescriptorToStringSecurityDescriptorW
|
||||
//sys localFree(mem uintptr) = LocalFree
|
||||
//sys getSecurityDescriptorLength(sd uintptr) (len uint32) = advapi32.GetSecurityDescriptorLength
|
||||
|
||||
const (
|
||||
cERROR_NONE_MAPPED = syscall.Errno(1332)
|
||||
)
|
||||
|
||||
type AccountLookupError struct {
|
||||
Name string
|
||||
Err error
|
||||
@ -28,8 +30,10 @@ func (e *AccountLookupError) Error() string {
|
||||
return "lookup account: empty account name specified"
|
||||
}
|
||||
var s string
|
||||
switch e.Err {
|
||||
case cERROR_NONE_MAPPED:
|
||||
switch {
|
||||
case errors.Is(e.Err, windows.ERROR_INVALID_SID):
|
||||
s = "the security ID structure is invalid"
|
||||
case errors.Is(e.Err, windows.ERROR_NONE_MAPPED):
|
||||
s = "not found"
|
||||
default:
|
||||
s = e.Err.Error()
|
||||
@ -37,6 +41,8 @@ func (e *AccountLookupError) Error() string {
|
||||
return "lookup account " + e.Name + ": " + s
|
||||
}
|
||||
|
||||
func (e *AccountLookupError) Unwrap() error { return e.Err }
|
||||
|
||||
type SddlConversionError struct {
|
||||
Sddl string
|
||||
Err error
|
||||
@ -46,15 +52,19 @@ func (e *SddlConversionError) Error() string {
|
||||
return "convert " + e.Sddl + ": " + e.Err.Error()
|
||||
}
|
||||
|
||||
func (e *SddlConversionError) Unwrap() error { return e.Err }
|
||||
|
||||
// LookupSidByName looks up the SID of an account by name
|
||||
//
|
||||
//revive:disable-next-line:var-naming SID, not Sid
|
||||
func LookupSidByName(name string) (sid string, err error) {
|
||||
if name == "" {
|
||||
return "", &AccountLookupError{name, cERROR_NONE_MAPPED}
|
||||
return "", &AccountLookupError{name, windows.ERROR_NONE_MAPPED}
|
||||
}
|
||||
|
||||
var sidSize, sidNameUse, refDomainSize uint32
|
||||
err = lookupAccountName(nil, name, nil, &sidSize, nil, &refDomainSize, &sidNameUse)
|
||||
if err != nil && err != syscall.ERROR_INSUFFICIENT_BUFFER {
|
||||
if err != nil && err != syscall.ERROR_INSUFFICIENT_BUFFER { //nolint:errorlint // err is Errno
|
||||
return "", &AccountLookupError{name, err}
|
||||
}
|
||||
sidBuffer := make([]byte, sidSize)
|
||||
@ -73,6 +83,42 @@ func LookupSidByName(name string) (sid string, err error) {
|
||||
return sid, nil
|
||||
}
|
||||
|
||||
// LookupNameBySid looks up the name of an account by SID
|
||||
//
|
||||
//revive:disable-next-line:var-naming SID, not Sid
|
||||
func LookupNameBySid(sid string) (name string, err error) {
|
||||
if sid == "" {
|
||||
return "", &AccountLookupError{sid, windows.ERROR_NONE_MAPPED}
|
||||
}
|
||||
|
||||
sidBuffer, err := windows.UTF16PtrFromString(sid)
|
||||
if err != nil {
|
||||
return "", &AccountLookupError{sid, err}
|
||||
}
|
||||
|
||||
var sidPtr *byte
|
||||
if err = convertStringSidToSid(sidBuffer, &sidPtr); err != nil {
|
||||
return "", &AccountLookupError{sid, err}
|
||||
}
|
||||
defer localFree(uintptr(unsafe.Pointer(sidPtr)))
|
||||
|
||||
var nameSize, refDomainSize, sidNameUse uint32
|
||||
err = lookupAccountSid(nil, sidPtr, nil, &nameSize, nil, &refDomainSize, &sidNameUse)
|
||||
if err != nil && err != windows.ERROR_INSUFFICIENT_BUFFER { //nolint:errorlint // err is Errno
|
||||
return "", &AccountLookupError{sid, err}
|
||||
}
|
||||
|
||||
nameBuffer := make([]uint16, nameSize)
|
||||
refDomainBuffer := make([]uint16, refDomainSize)
|
||||
err = lookupAccountSid(nil, sidPtr, &nameBuffer[0], &nameSize, &refDomainBuffer[0], &refDomainSize, &sidNameUse)
|
||||
if err != nil {
|
||||
return "", &AccountLookupError{sid, err}
|
||||
}
|
||||
|
||||
name = windows.UTF16ToString(nameBuffer)
|
||||
return name, nil
|
||||
}
|
||||
|
||||
func SddlToSecurityDescriptor(sddl string) ([]byte, error) {
|
||||
var sdBuffer uintptr
|
||||
err := convertStringSecurityDescriptorToSecurityDescriptor(sddl, 1, &sdBuffer, nil)
|
||||
@ -87,7 +133,7 @@ func SddlToSecurityDescriptor(sddl string) ([]byte, error) {
|
||||
|
||||
func SecurityDescriptorToSddl(sd []byte) (string, error) {
|
||||
var sddl *uint16
|
||||
// The returned string length seems to including an aribtrary number of terminating NULs.
|
||||
// The returned string length seems to include an arbitrary number of terminating NULs.
|
||||
// Don't use it.
|
||||
err := convertSecurityDescriptorToStringSecurityDescriptor(&sd[0], 1, 0xff, &sddl, nil)
|
||||
if err != nil {
|
||||
|
4
vendor/github.com/Microsoft/go-winio/syscall.go
generated
vendored
4
vendor/github.com/Microsoft/go-winio/syscall.go
generated
vendored
@ -1,3 +1,5 @@
|
||||
//go:build windows
|
||||
|
||||
package winio
|
||||
|
||||
//go:generate go run golang.org/x/sys/windows/mkwinsyscall -output zsyscall_windows.go file.go pipe.go sd.go fileinfo.go privilege.go backup.go hvsock.go
|
||||
//go:generate go run github.com/Microsoft/go-winio/tools/mkwinsyscall -output zsyscall_windows.go ./*.go
|
||||
|
5
vendor/github.com/Microsoft/go-winio/tools.go
generated
vendored
Normal file
5
vendor/github.com/Microsoft/go-winio/tools.go
generated
vendored
Normal file
@ -0,0 +1,5 @@
|
||||
//go:build tools
|
||||
|
||||
package winio
|
||||
|
||||
import _ "golang.org/x/tools/cmd/stringer"
|
122
vendor/github.com/Microsoft/go-winio/vhd/vhd.go
generated
vendored
122
vendor/github.com/Microsoft/go-winio/vhd/vhd.go
generated
vendored
@ -1,3 +1,4 @@
|
||||
//go:build windows
|
||||
// +build windows
|
||||
|
||||
package vhd
|
||||
@ -7,17 +8,16 @@ import (
|
||||
"syscall"
|
||||
|
||||
"github.com/Microsoft/go-winio/pkg/guid"
|
||||
"github.com/pkg/errors"
|
||||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
//go:generate go run mksyscall_windows.go -output zvhd_windows.go vhd.go
|
||||
//go:generate go run github.com/Microsoft/go-winio/tools/mkwinsyscall -output zvhd_windows.go vhd.go
|
||||
|
||||
//sys createVirtualDisk(virtualStorageType *VirtualStorageType, path string, virtualDiskAccessMask uint32, securityDescriptor *uintptr, createVirtualDiskFlags uint32, providerSpecificFlags uint32, parameters *CreateVirtualDiskParameters, overlapped *syscall.Overlapped, handle *syscall.Handle) (err error) [failretval != 0] = virtdisk.CreateVirtualDisk
|
||||
//sys openVirtualDisk(virtualStorageType *VirtualStorageType, path string, virtualDiskAccessMask uint32, openVirtualDiskFlags uint32, parameters *OpenVirtualDiskParameters, handle *syscall.Handle) (err error) [failretval != 0] = virtdisk.OpenVirtualDisk
|
||||
//sys attachVirtualDisk(handle syscall.Handle, securityDescriptor *uintptr, attachVirtualDiskFlag uint32, providerSpecificFlags uint32, parameters *AttachVirtualDiskParameters, overlapped *syscall.Overlapped) (err error) [failretval != 0] = virtdisk.AttachVirtualDisk
|
||||
//sys detachVirtualDisk(handle syscall.Handle, detachVirtualDiskFlags uint32, providerSpecificFlags uint32) (err error) [failretval != 0] = virtdisk.DetachVirtualDisk
|
||||
//sys getVirtualDiskPhysicalPath(handle syscall.Handle, diskPathSizeInBytes *uint32, buffer *uint16) (err error) [failretval != 0] = virtdisk.GetVirtualDiskPhysicalPath
|
||||
//sys createVirtualDisk(virtualStorageType *VirtualStorageType, path string, virtualDiskAccessMask uint32, securityDescriptor *uintptr, createVirtualDiskFlags uint32, providerSpecificFlags uint32, parameters *CreateVirtualDiskParameters, overlapped *syscall.Overlapped, handle *syscall.Handle) (win32err error) = virtdisk.CreateVirtualDisk
|
||||
//sys openVirtualDisk(virtualStorageType *VirtualStorageType, path string, virtualDiskAccessMask uint32, openVirtualDiskFlags uint32, parameters *openVirtualDiskParameters, handle *syscall.Handle) (win32err error) = virtdisk.OpenVirtualDisk
|
||||
//sys attachVirtualDisk(handle syscall.Handle, securityDescriptor *uintptr, attachVirtualDiskFlag uint32, providerSpecificFlags uint32, parameters *AttachVirtualDiskParameters, overlapped *syscall.Overlapped) (win32err error) = virtdisk.AttachVirtualDisk
|
||||
//sys detachVirtualDisk(handle syscall.Handle, detachVirtualDiskFlags uint32, providerSpecificFlags uint32) (win32err error) = virtdisk.DetachVirtualDisk
|
||||
//sys getVirtualDiskPhysicalPath(handle syscall.Handle, diskPathSizeInBytes *uint32, buffer *uint16) (win32err error) = virtdisk.GetVirtualDiskPhysicalPath
|
||||
|
||||
type (
|
||||
CreateVirtualDiskFlag uint32
|
||||
@ -62,20 +62,35 @@ type OpenVirtualDiskParameters struct {
|
||||
Version2 OpenVersion2
|
||||
}
|
||||
|
||||
// The higher level `OpenVersion2` struct uses `bool`s to refer to `GetInfoOnly` and `ReadOnly` for ease of use. However,
|
||||
// the internal windows structure uses `BOOL`s aka int32s for these types. `openVersion2` is used for translating
|
||||
// `OpenVersion2` fields to the correct windows internal field types on the `Open____` methods.
|
||||
type openVersion2 struct {
|
||||
getInfoOnly int32
|
||||
readOnly int32
|
||||
resiliencyGUID guid.GUID
|
||||
}
|
||||
|
||||
type openVirtualDiskParameters struct {
|
||||
version uint32
|
||||
version2 openVersion2
|
||||
}
|
||||
|
||||
type AttachVersion2 struct {
|
||||
RestrictedOffset uint64
|
||||
RestrictedLength uint64
|
||||
}
|
||||
|
||||
type AttachVirtualDiskParameters struct {
|
||||
Version uint32 // Must always be set to 2
|
||||
Version uint32
|
||||
Version2 AttachVersion2
|
||||
}
|
||||
|
||||
const (
|
||||
//revive:disable-next-line:var-naming ALL_CAPS
|
||||
VIRTUAL_STORAGE_TYPE_DEVICE_VHDX = 0x3
|
||||
|
||||
// Access Mask for opening a VHD
|
||||
// Access Mask for opening a VHD.
|
||||
VirtualDiskAccessNone VirtualDiskAccessMask = 0x00000000
|
||||
VirtualDiskAccessAttachRO VirtualDiskAccessMask = 0x00010000
|
||||
VirtualDiskAccessAttachRW VirtualDiskAccessMask = 0x00020000
|
||||
@ -87,7 +102,7 @@ const (
|
||||
VirtualDiskAccessAll VirtualDiskAccessMask = 0x003f0000
|
||||
VirtualDiskAccessWritable VirtualDiskAccessMask = 0x00320000
|
||||
|
||||
// Flags for creating a VHD
|
||||
// Flags for creating a VHD.
|
||||
CreateVirtualDiskFlagNone CreateVirtualDiskFlag = 0x0
|
||||
CreateVirtualDiskFlagFullPhysicalAllocation CreateVirtualDiskFlag = 0x1
|
||||
CreateVirtualDiskFlagPreventWritesToSourceDisk CreateVirtualDiskFlag = 0x2
|
||||
@ -95,12 +110,12 @@ const (
|
||||
CreateVirtualDiskFlagCreateBackingStorage CreateVirtualDiskFlag = 0x8
|
||||
CreateVirtualDiskFlagUseChangeTrackingSourceLimit CreateVirtualDiskFlag = 0x10
|
||||
CreateVirtualDiskFlagPreserveParentChangeTrackingState CreateVirtualDiskFlag = 0x20
|
||||
CreateVirtualDiskFlagVhdSetUseOriginalBackingStorage CreateVirtualDiskFlag = 0x40
|
||||
CreateVirtualDiskFlagVhdSetUseOriginalBackingStorage CreateVirtualDiskFlag = 0x40 //revive:disable-line:var-naming VHD, not Vhd
|
||||
CreateVirtualDiskFlagSparseFile CreateVirtualDiskFlag = 0x80
|
||||
CreateVirtualDiskFlagPmemCompatible CreateVirtualDiskFlag = 0x100
|
||||
CreateVirtualDiskFlagPmemCompatible CreateVirtualDiskFlag = 0x100 //revive:disable-line:var-naming PMEM, not Pmem
|
||||
CreateVirtualDiskFlagSupportCompressedVolumes CreateVirtualDiskFlag = 0x200
|
||||
|
||||
// Flags for opening a VHD
|
||||
// Flags for opening a VHD.
|
||||
OpenVirtualDiskFlagNone VirtualDiskFlag = 0x00000000
|
||||
OpenVirtualDiskFlagNoParents VirtualDiskFlag = 0x00000001
|
||||
OpenVirtualDiskFlagBlankFile VirtualDiskFlag = 0x00000002
|
||||
@ -113,7 +128,7 @@ const (
|
||||
OpenVirtualDiskFlagNoWriteHardening VirtualDiskFlag = 0x00000100
|
||||
OpenVirtualDiskFlagSupportCompressedVolumes VirtualDiskFlag = 0x00000200
|
||||
|
||||
// Flags for attaching a VHD
|
||||
// Flags for attaching a VHD.
|
||||
AttachVirtualDiskFlagNone AttachVirtualDiskFlag = 0x00000000
|
||||
AttachVirtualDiskFlagReadOnly AttachVirtualDiskFlag = 0x00000001
|
||||
AttachVirtualDiskFlagNoDriveLetter AttachVirtualDiskFlag = 0x00000002
|
||||
@ -126,12 +141,14 @@ const (
|
||||
AttachVirtualDiskFlagSinglePartition AttachVirtualDiskFlag = 0x00000100
|
||||
AttachVirtualDiskFlagRegisterVolume AttachVirtualDiskFlag = 0x00000200
|
||||
|
||||
// Flags for detaching a VHD
|
||||
// Flags for detaching a VHD.
|
||||
DetachVirtualDiskFlagNone DetachVirtualDiskFlag = 0x0
|
||||
)
|
||||
|
||||
// CreateVhdx is a helper function to create a simple vhdx file at the given path using
|
||||
// default values.
|
||||
//
|
||||
//revive:disable-next-line:var-naming VHDX, not Vhdx
|
||||
func CreateVhdx(path string, maxSizeInGb, blockSizeInMb uint32) error {
|
||||
params := CreateVirtualDiskParameters{
|
||||
Version: 2,
|
||||
@ -146,21 +163,20 @@ func CreateVhdx(path string, maxSizeInGb, blockSizeInMb uint32) error {
|
||||
return err
|
||||
}
|
||||
|
||||
if err := syscall.CloseHandle(handle); err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
return syscall.CloseHandle(handle)
|
||||
}
|
||||
|
||||
// DetachVirtualDisk detaches a virtual hard disk by handle.
|
||||
func DetachVirtualDisk(handle syscall.Handle) (err error) {
|
||||
if err := detachVirtualDisk(handle, 0, 0); err != nil {
|
||||
return errors.Wrap(err, "failed to detach virtual disk")
|
||||
return fmt.Errorf("failed to detach virtual disk: %w", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// DetachVhd detaches a vhd found at `path`.
|
||||
//
|
||||
//revive:disable-next-line:var-naming VHD, not Vhd
|
||||
func DetachVhd(path string) error {
|
||||
handle, err := OpenVirtualDisk(
|
||||
path,
|
||||
@ -170,12 +186,16 @@ func DetachVhd(path string) error {
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer syscall.CloseHandle(handle)
|
||||
defer syscall.CloseHandle(handle) //nolint:errcheck
|
||||
return DetachVirtualDisk(handle)
|
||||
}
|
||||
|
||||
// AttachVirtualDisk attaches a virtual hard disk for use.
|
||||
func AttachVirtualDisk(handle syscall.Handle, attachVirtualDiskFlag AttachVirtualDiskFlag, parameters *AttachVirtualDiskParameters) (err error) {
|
||||
func AttachVirtualDisk(
|
||||
handle syscall.Handle,
|
||||
attachVirtualDiskFlag AttachVirtualDiskFlag,
|
||||
parameters *AttachVirtualDiskParameters,
|
||||
) (err error) {
|
||||
// Supports both version 1 and 2 of the attach parameters as version 2 wasn't present in RS5.
|
||||
if err := attachVirtualDisk(
|
||||
handle,
|
||||
@ -185,13 +205,15 @@ func AttachVirtualDisk(handle syscall.Handle, attachVirtualDiskFlag AttachVirtua
|
||||
parameters,
|
||||
nil,
|
||||
); err != nil {
|
||||
return errors.Wrap(err, "failed to attach virtual disk")
|
||||
return fmt.Errorf("failed to attach virtual disk: %w", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// AttachVhd attaches a virtual hard disk at `path` for use. Attaches using version 2
|
||||
// of the ATTACH_VIRTUAL_DISK_PARAMETERS.
|
||||
//
|
||||
//revive:disable-next-line:var-naming VHD, not Vhd
|
||||
func AttachVhd(path string) (err error) {
|
||||
handle, err := OpenVirtualDisk(
|
||||
path,
|
||||
@ -202,20 +224,24 @@ func AttachVhd(path string) (err error) {
|
||||
return err
|
||||
}
|
||||
|
||||
defer syscall.CloseHandle(handle)
|
||||
defer syscall.CloseHandle(handle) //nolint:errcheck
|
||||
params := AttachVirtualDiskParameters{Version: 2}
|
||||
if err := AttachVirtualDisk(
|
||||
handle,
|
||||
AttachVirtualDiskFlagNone,
|
||||
¶ms,
|
||||
); err != nil {
|
||||
return errors.Wrap(err, "failed to attach virtual disk")
|
||||
return fmt.Errorf("failed to attach virtual disk: %w", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// OpenVirtualDisk obtains a handle to a VHD opened with supplied access mask and flags.
|
||||
func OpenVirtualDisk(vhdPath string, virtualDiskAccessMask VirtualDiskAccessMask, openVirtualDiskFlags VirtualDiskFlag) (syscall.Handle, error) {
|
||||
func OpenVirtualDisk(
|
||||
vhdPath string,
|
||||
virtualDiskAccessMask VirtualDiskAccessMask,
|
||||
openVirtualDiskFlags VirtualDiskFlag,
|
||||
) (syscall.Handle, error) {
|
||||
parameters := OpenVirtualDiskParameters{Version: 2}
|
||||
handle, err := OpenVirtualDiskWithParameters(
|
||||
vhdPath,
|
||||
@ -230,29 +256,55 @@ func OpenVirtualDisk(vhdPath string, virtualDiskAccessMask VirtualDiskAccessMask
|
||||
}
|
||||
|
||||
// OpenVirtualDiskWithParameters obtains a handle to a VHD opened with supplied access mask, flags and parameters.
|
||||
func OpenVirtualDiskWithParameters(vhdPath string, virtualDiskAccessMask VirtualDiskAccessMask, openVirtualDiskFlags VirtualDiskFlag, parameters *OpenVirtualDiskParameters) (syscall.Handle, error) {
|
||||
func OpenVirtualDiskWithParameters(
|
||||
vhdPath string,
|
||||
virtualDiskAccessMask VirtualDiskAccessMask,
|
||||
openVirtualDiskFlags VirtualDiskFlag,
|
||||
parameters *OpenVirtualDiskParameters,
|
||||
) (syscall.Handle, error) {
|
||||
var (
|
||||
handle syscall.Handle
|
||||
defaultType VirtualStorageType
|
||||
getInfoOnly int32
|
||||
readOnly int32
|
||||
)
|
||||
if parameters.Version != 2 {
|
||||
return handle, fmt.Errorf("only version 2 VHDs are supported, found version: %d", parameters.Version)
|
||||
}
|
||||
if parameters.Version2.GetInfoOnly {
|
||||
getInfoOnly = 1
|
||||
}
|
||||
if parameters.Version2.ReadOnly {
|
||||
readOnly = 1
|
||||
}
|
||||
params := &openVirtualDiskParameters{
|
||||
version: parameters.Version,
|
||||
version2: openVersion2{
|
||||
getInfoOnly,
|
||||
readOnly,
|
||||
parameters.Version2.ResiliencyGUID,
|
||||
},
|
||||
}
|
||||
if err := openVirtualDisk(
|
||||
&defaultType,
|
||||
vhdPath,
|
||||
uint32(virtualDiskAccessMask),
|
||||
uint32(openVirtualDiskFlags),
|
||||
parameters,
|
||||
params,
|
||||
&handle,
|
||||
); err != nil {
|
||||
return 0, errors.Wrap(err, "failed to open virtual disk")
|
||||
return 0, fmt.Errorf("failed to open virtual disk: %w", err)
|
||||
}
|
||||
return handle, nil
|
||||
}
|
||||
|
||||
// CreateVirtualDisk creates a virtual harddisk and returns a handle to the disk.
|
||||
func CreateVirtualDisk(path string, virtualDiskAccessMask VirtualDiskAccessMask, createVirtualDiskFlags CreateVirtualDiskFlag, parameters *CreateVirtualDiskParameters) (syscall.Handle, error) {
|
||||
func CreateVirtualDisk(
|
||||
path string,
|
||||
virtualDiskAccessMask VirtualDiskAccessMask,
|
||||
createVirtualDiskFlags CreateVirtualDiskFlag,
|
||||
parameters *CreateVirtualDiskParameters,
|
||||
) (syscall.Handle, error) {
|
||||
var (
|
||||
handle syscall.Handle
|
||||
defaultType VirtualStorageType
|
||||
@ -272,7 +324,7 @@ func CreateVirtualDisk(path string, virtualDiskAccessMask VirtualDiskAccessMask,
|
||||
nil,
|
||||
&handle,
|
||||
); err != nil {
|
||||
return handle, errors.Wrap(err, "failed to create virtual disk")
|
||||
return handle, fmt.Errorf("failed to create virtual disk: %w", err)
|
||||
}
|
||||
return handle, nil
|
||||
}
|
||||
@ -290,12 +342,14 @@ func GetVirtualDiskPhysicalPath(handle syscall.Handle) (_ string, err error) {
|
||||
&diskPathSizeInBytes,
|
||||
&diskPhysicalPathBuf[0],
|
||||
); err != nil {
|
||||
return "", errors.Wrap(err, "failed to get disk physical path")
|
||||
return "", fmt.Errorf("failed to get disk physical path: %w", err)
|
||||
}
|
||||
return windows.UTF16ToString(diskPhysicalPathBuf[:]), nil
|
||||
}
|
||||
|
||||
// CreateDiffVhd is a helper function to create a differencing virtual disk.
|
||||
//
|
||||
//revive:disable-next-line:var-naming VHD, not Vhd
|
||||
func CreateDiffVhd(diffVhdPath, baseVhdPath string, blockSizeInMB uint32) error {
|
||||
// Setting `ParentPath` is how to signal to create a differencing disk.
|
||||
createParams := &CreateVirtualDiskParameters{
|
||||
@ -314,10 +368,10 @@ func CreateDiffVhd(diffVhdPath, baseVhdPath string, blockSizeInMB uint32) error
|
||||
createParams,
|
||||
)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to create differencing vhd: %s", err)
|
||||
return fmt.Errorf("failed to create differencing vhd: %w", err)
|
||||
}
|
||||
if err := syscall.CloseHandle(vhdHandle); err != nil {
|
||||
return fmt.Errorf("failed to close differencing vhd handle: %s", err)
|
||||
return fmt.Errorf("failed to close differencing vhd handle: %w", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
56
vendor/github.com/Microsoft/go-winio/vhd/zvhd_windows.go
generated
vendored
56
vendor/github.com/Microsoft/go-winio/vhd/zvhd_windows.go
generated
vendored
@ -1,4 +1,6 @@
|
||||
// Code generated by 'go generate'; DO NOT EDIT.
|
||||
//go:build windows
|
||||
|
||||
// Code generated by 'go generate' using "github.com/Microsoft/go-winio/tools/mkwinsyscall"; DO NOT EDIT.
|
||||
|
||||
package vhd
|
||||
|
||||
@ -47,60 +49,60 @@ var (
|
||||
procOpenVirtualDisk = modvirtdisk.NewProc("OpenVirtualDisk")
|
||||
)
|
||||
|
||||
func attachVirtualDisk(handle syscall.Handle, securityDescriptor *uintptr, attachVirtualDiskFlag uint32, providerSpecificFlags uint32, parameters *AttachVirtualDiskParameters, overlapped *syscall.Overlapped) (err error) {
|
||||
r1, _, e1 := syscall.Syscall6(procAttachVirtualDisk.Addr(), 6, uintptr(handle), uintptr(unsafe.Pointer(securityDescriptor)), uintptr(attachVirtualDiskFlag), uintptr(providerSpecificFlags), uintptr(unsafe.Pointer(parameters)), uintptr(unsafe.Pointer(overlapped)))
|
||||
if r1 != 0 {
|
||||
err = errnoErr(e1)
|
||||
func attachVirtualDisk(handle syscall.Handle, securityDescriptor *uintptr, attachVirtualDiskFlag uint32, providerSpecificFlags uint32, parameters *AttachVirtualDiskParameters, overlapped *syscall.Overlapped) (win32err error) {
|
||||
r0, _, _ := syscall.Syscall6(procAttachVirtualDisk.Addr(), 6, uintptr(handle), uintptr(unsafe.Pointer(securityDescriptor)), uintptr(attachVirtualDiskFlag), uintptr(providerSpecificFlags), uintptr(unsafe.Pointer(parameters)), uintptr(unsafe.Pointer(overlapped)))
|
||||
if r0 != 0 {
|
||||
win32err = syscall.Errno(r0)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func createVirtualDisk(virtualStorageType *VirtualStorageType, path string, virtualDiskAccessMask uint32, securityDescriptor *uintptr, createVirtualDiskFlags uint32, providerSpecificFlags uint32, parameters *CreateVirtualDiskParameters, overlapped *syscall.Overlapped, handle *syscall.Handle) (err error) {
|
||||
func createVirtualDisk(virtualStorageType *VirtualStorageType, path string, virtualDiskAccessMask uint32, securityDescriptor *uintptr, createVirtualDiskFlags uint32, providerSpecificFlags uint32, parameters *CreateVirtualDiskParameters, overlapped *syscall.Overlapped, handle *syscall.Handle) (win32err error) {
|
||||
var _p0 *uint16
|
||||
_p0, err = syscall.UTF16PtrFromString(path)
|
||||
if err != nil {
|
||||
_p0, win32err = syscall.UTF16PtrFromString(path)
|
||||
if win32err != nil {
|
||||
return
|
||||
}
|
||||
return _createVirtualDisk(virtualStorageType, _p0, virtualDiskAccessMask, securityDescriptor, createVirtualDiskFlags, providerSpecificFlags, parameters, overlapped, handle)
|
||||
}
|
||||
|
||||
func _createVirtualDisk(virtualStorageType *VirtualStorageType, path *uint16, virtualDiskAccessMask uint32, securityDescriptor *uintptr, createVirtualDiskFlags uint32, providerSpecificFlags uint32, parameters *CreateVirtualDiskParameters, overlapped *syscall.Overlapped, handle *syscall.Handle) (err error) {
|
||||
r1, _, e1 := syscall.Syscall9(procCreateVirtualDisk.Addr(), 9, uintptr(unsafe.Pointer(virtualStorageType)), uintptr(unsafe.Pointer(path)), uintptr(virtualDiskAccessMask), uintptr(unsafe.Pointer(securityDescriptor)), uintptr(createVirtualDiskFlags), uintptr(providerSpecificFlags), uintptr(unsafe.Pointer(parameters)), uintptr(unsafe.Pointer(overlapped)), uintptr(unsafe.Pointer(handle)))
|
||||
if r1 != 0 {
|
||||
err = errnoErr(e1)
|
||||
func _createVirtualDisk(virtualStorageType *VirtualStorageType, path *uint16, virtualDiskAccessMask uint32, securityDescriptor *uintptr, createVirtualDiskFlags uint32, providerSpecificFlags uint32, parameters *CreateVirtualDiskParameters, overlapped *syscall.Overlapped, handle *syscall.Handle) (win32err error) {
|
||||
r0, _, _ := syscall.Syscall9(procCreateVirtualDisk.Addr(), 9, uintptr(unsafe.Pointer(virtualStorageType)), uintptr(unsafe.Pointer(path)), uintptr(virtualDiskAccessMask), uintptr(unsafe.Pointer(securityDescriptor)), uintptr(createVirtualDiskFlags), uintptr(providerSpecificFlags), uintptr(unsafe.Pointer(parameters)), uintptr(unsafe.Pointer(overlapped)), uintptr(unsafe.Pointer(handle)))
|
||||
if r0 != 0 {
|
||||
win32err = syscall.Errno(r0)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func detachVirtualDisk(handle syscall.Handle, detachVirtualDiskFlags uint32, providerSpecificFlags uint32) (err error) {
|
||||
r1, _, e1 := syscall.Syscall(procDetachVirtualDisk.Addr(), 3, uintptr(handle), uintptr(detachVirtualDiskFlags), uintptr(providerSpecificFlags))
|
||||
if r1 != 0 {
|
||||
err = errnoErr(e1)
|
||||
func detachVirtualDisk(handle syscall.Handle, detachVirtualDiskFlags uint32, providerSpecificFlags uint32) (win32err error) {
|
||||
r0, _, _ := syscall.Syscall(procDetachVirtualDisk.Addr(), 3, uintptr(handle), uintptr(detachVirtualDiskFlags), uintptr(providerSpecificFlags))
|
||||
if r0 != 0 {
|
||||
win32err = syscall.Errno(r0)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func getVirtualDiskPhysicalPath(handle syscall.Handle, diskPathSizeInBytes *uint32, buffer *uint16) (err error) {
|
||||
r1, _, e1 := syscall.Syscall(procGetVirtualDiskPhysicalPath.Addr(), 3, uintptr(handle), uintptr(unsafe.Pointer(diskPathSizeInBytes)), uintptr(unsafe.Pointer(buffer)))
|
||||
if r1 != 0 {
|
||||
err = errnoErr(e1)
|
||||
func getVirtualDiskPhysicalPath(handle syscall.Handle, diskPathSizeInBytes *uint32, buffer *uint16) (win32err error) {
|
||||
r0, _, _ := syscall.Syscall(procGetVirtualDiskPhysicalPath.Addr(), 3, uintptr(handle), uintptr(unsafe.Pointer(diskPathSizeInBytes)), uintptr(unsafe.Pointer(buffer)))
|
||||
if r0 != 0 {
|
||||
win32err = syscall.Errno(r0)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func openVirtualDisk(virtualStorageType *VirtualStorageType, path string, virtualDiskAccessMask uint32, openVirtualDiskFlags uint32, parameters *OpenVirtualDiskParameters, handle *syscall.Handle) (err error) {
|
||||
func openVirtualDisk(virtualStorageType *VirtualStorageType, path string, virtualDiskAccessMask uint32, openVirtualDiskFlags uint32, parameters *openVirtualDiskParameters, handle *syscall.Handle) (win32err error) {
|
||||
var _p0 *uint16
|
||||
_p0, err = syscall.UTF16PtrFromString(path)
|
||||
if err != nil {
|
||||
_p0, win32err = syscall.UTF16PtrFromString(path)
|
||||
if win32err != nil {
|
||||
return
|
||||
}
|
||||
return _openVirtualDisk(virtualStorageType, _p0, virtualDiskAccessMask, openVirtualDiskFlags, parameters, handle)
|
||||
}
|
||||
|
||||
func _openVirtualDisk(virtualStorageType *VirtualStorageType, path *uint16, virtualDiskAccessMask uint32, openVirtualDiskFlags uint32, parameters *OpenVirtualDiskParameters, handle *syscall.Handle) (err error) {
|
||||
r1, _, e1 := syscall.Syscall6(procOpenVirtualDisk.Addr(), 6, uintptr(unsafe.Pointer(virtualStorageType)), uintptr(unsafe.Pointer(path)), uintptr(virtualDiskAccessMask), uintptr(openVirtualDiskFlags), uintptr(unsafe.Pointer(parameters)), uintptr(unsafe.Pointer(handle)))
|
||||
if r1 != 0 {
|
||||
err = errnoErr(e1)
|
||||
func _openVirtualDisk(virtualStorageType *VirtualStorageType, path *uint16, virtualDiskAccessMask uint32, openVirtualDiskFlags uint32, parameters *openVirtualDiskParameters, handle *syscall.Handle) (win32err error) {
|
||||
r0, _, _ := syscall.Syscall6(procOpenVirtualDisk.Addr(), 6, uintptr(unsafe.Pointer(virtualStorageType)), uintptr(unsafe.Pointer(path)), uintptr(virtualDiskAccessMask), uintptr(openVirtualDiskFlags), uintptr(unsafe.Pointer(parameters)), uintptr(unsafe.Pointer(handle)))
|
||||
if r0 != 0 {
|
||||
win32err = syscall.Errno(r0)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
45
vendor/github.com/Microsoft/go-winio/zsyscall_windows.go
generated
vendored
45
vendor/github.com/Microsoft/go-winio/zsyscall_windows.go
generated
vendored
@ -1,4 +1,6 @@
|
||||
// Code generated by 'go generate'; DO NOT EDIT.
|
||||
//go:build windows
|
||||
|
||||
// Code generated by 'go generate' using "github.com/Microsoft/go-winio/tools/mkwinsyscall"; DO NOT EDIT.
|
||||
|
||||
package winio
|
||||
|
||||
@ -47,9 +49,11 @@ var (
|
||||
procConvertSecurityDescriptorToStringSecurityDescriptorW = modadvapi32.NewProc("ConvertSecurityDescriptorToStringSecurityDescriptorW")
|
||||
procConvertSidToStringSidW = modadvapi32.NewProc("ConvertSidToStringSidW")
|
||||
procConvertStringSecurityDescriptorToSecurityDescriptorW = modadvapi32.NewProc("ConvertStringSecurityDescriptorToSecurityDescriptorW")
|
||||
procConvertStringSidToSidW = modadvapi32.NewProc("ConvertStringSidToSidW")
|
||||
procGetSecurityDescriptorLength = modadvapi32.NewProc("GetSecurityDescriptorLength")
|
||||
procImpersonateSelf = modadvapi32.NewProc("ImpersonateSelf")
|
||||
procLookupAccountNameW = modadvapi32.NewProc("LookupAccountNameW")
|
||||
procLookupAccountSidW = modadvapi32.NewProc("LookupAccountSidW")
|
||||
procLookupPrivilegeDisplayNameW = modadvapi32.NewProc("LookupPrivilegeDisplayNameW")
|
||||
procLookupPrivilegeNameW = modadvapi32.NewProc("LookupPrivilegeNameW")
|
||||
procLookupPrivilegeValueW = modadvapi32.NewProc("LookupPrivilegeValueW")
|
||||
@ -74,7 +78,6 @@ var (
|
||||
procRtlDosPathNameToNtPathName_U = modntdll.NewProc("RtlDosPathNameToNtPathName_U")
|
||||
procRtlNtStatusToDosErrorNoTeb = modntdll.NewProc("RtlNtStatusToDosErrorNoTeb")
|
||||
procWSAGetOverlappedResult = modws2_32.NewProc("WSAGetOverlappedResult")
|
||||
procbind = modws2_32.NewProc("bind")
|
||||
)
|
||||
|
||||
func adjustTokenPrivileges(token windows.Token, releaseAll bool, input *byte, outputSize uint32, output *byte, requiredSize *uint32) (success bool, err error) {
|
||||
@ -123,6 +126,14 @@ func _convertStringSecurityDescriptorToSecurityDescriptor(str *uint16, revision
|
||||
return
|
||||
}
|
||||
|
||||
func convertStringSidToSid(str *uint16, sid **byte) (err error) {
|
||||
r1, _, e1 := syscall.Syscall(procConvertStringSidToSidW.Addr(), 2, uintptr(unsafe.Pointer(str)), uintptr(unsafe.Pointer(sid)), 0)
|
||||
if r1 == 0 {
|
||||
err = errnoErr(e1)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func getSecurityDescriptorLength(sd uintptr) (len uint32) {
|
||||
r0, _, _ := syscall.Syscall(procGetSecurityDescriptorLength.Addr(), 1, uintptr(sd), 0, 0)
|
||||
len = uint32(r0)
|
||||
@ -154,6 +165,14 @@ func _lookupAccountName(systemName *uint16, accountName *uint16, sid *byte, sidS
|
||||
return
|
||||
}
|
||||
|
||||
func lookupAccountSid(systemName *uint16, sid *byte, name *uint16, nameSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) {
|
||||
r1, _, e1 := syscall.Syscall9(procLookupAccountSidW.Addr(), 7, uintptr(unsafe.Pointer(systemName)), uintptr(unsafe.Pointer(sid)), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(nameSize)), uintptr(unsafe.Pointer(refDomain)), uintptr(unsafe.Pointer(refDomainSize)), uintptr(unsafe.Pointer(sidNameUse)), 0, 0)
|
||||
if r1 == 0 {
|
||||
err = errnoErr(e1)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func lookupPrivilegeDisplayName(systemName string, name *uint16, buffer *uint16, size *uint32, languageId *uint32) (err error) {
|
||||
var _p0 *uint16
|
||||
_p0, err = syscall.UTF16PtrFromString(systemName)
|
||||
@ -380,25 +399,25 @@ func setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err erro
|
||||
return
|
||||
}
|
||||
|
||||
func ntCreateNamedPipeFile(pipe *syscall.Handle, access uint32, oa *objectAttributes, iosb *ioStatusBlock, share uint32, disposition uint32, options uint32, typ uint32, readMode uint32, completionMode uint32, maxInstances uint32, inboundQuota uint32, outputQuota uint32, timeout *int64) (status ntstatus) {
|
||||
func ntCreateNamedPipeFile(pipe *syscall.Handle, access uint32, oa *objectAttributes, iosb *ioStatusBlock, share uint32, disposition uint32, options uint32, typ uint32, readMode uint32, completionMode uint32, maxInstances uint32, inboundQuota uint32, outputQuota uint32, timeout *int64) (status ntStatus) {
|
||||
r0, _, _ := syscall.Syscall15(procNtCreateNamedPipeFile.Addr(), 14, uintptr(unsafe.Pointer(pipe)), uintptr(access), uintptr(unsafe.Pointer(oa)), uintptr(unsafe.Pointer(iosb)), uintptr(share), uintptr(disposition), uintptr(options), uintptr(typ), uintptr(readMode), uintptr(completionMode), uintptr(maxInstances), uintptr(inboundQuota), uintptr(outputQuota), uintptr(unsafe.Pointer(timeout)), 0)
|
||||
status = ntstatus(r0)
|
||||
status = ntStatus(r0)
|
||||
return
|
||||
}
|
||||
|
||||
func rtlDefaultNpAcl(dacl *uintptr) (status ntstatus) {
|
||||
func rtlDefaultNpAcl(dacl *uintptr) (status ntStatus) {
|
||||
r0, _, _ := syscall.Syscall(procRtlDefaultNpAcl.Addr(), 1, uintptr(unsafe.Pointer(dacl)), 0, 0)
|
||||
status = ntstatus(r0)
|
||||
status = ntStatus(r0)
|
||||
return
|
||||
}
|
||||
|
||||
func rtlDosPathNameToNtPathName(name *uint16, ntName *unicodeString, filePart uintptr, reserved uintptr) (status ntstatus) {
|
||||
func rtlDosPathNameToNtPathName(name *uint16, ntName *unicodeString, filePart uintptr, reserved uintptr) (status ntStatus) {
|
||||
r0, _, _ := syscall.Syscall6(procRtlDosPathNameToNtPathName_U.Addr(), 4, uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(ntName)), uintptr(filePart), uintptr(reserved), 0, 0)
|
||||
status = ntstatus(r0)
|
||||
status = ntStatus(r0)
|
||||
return
|
||||
}
|
||||
|
||||
func rtlNtStatusToDosError(status ntstatus) (winerr error) {
|
||||
func rtlNtStatusToDosError(status ntStatus) (winerr error) {
|
||||
r0, _, _ := syscall.Syscall(procRtlNtStatusToDosErrorNoTeb.Addr(), 1, uintptr(status), 0, 0)
|
||||
if r0 != 0 {
|
||||
winerr = syscall.Errno(r0)
|
||||
@ -417,11 +436,3 @@ func wsaGetOverlappedResult(h syscall.Handle, o *syscall.Overlapped, bytes *uint
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func bind(s syscall.Handle, name unsafe.Pointer, namelen int32) (err error) {
|
||||
r1, _, e1 := syscall.Syscall(procbind.Addr(), 3, uintptr(s), uintptr(name), uintptr(namelen))
|
||||
if r1 == socketError {
|
||||
err = errnoErr(e1)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
657
vendor/golang.org/x/tools/cmd/stringer/stringer.go
generated
vendored
Normal file
657
vendor/golang.org/x/tools/cmd/stringer/stringer.go
generated
vendored
Normal file
@ -0,0 +1,657 @@
|
||||
// Copyright 2014 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Stringer is a tool to automate the creation of methods that satisfy the fmt.Stringer
|
||||
// interface. Given the name of a (signed or unsigned) integer type T that has constants
|
||||
// defined, stringer will create a new self-contained Go source file implementing
|
||||
//
|
||||
// func (t T) String() string
|
||||
//
|
||||
// The file is created in the same package and directory as the package that defines T.
|
||||
// It has helpful defaults designed for use with go generate.
|
||||
//
|
||||
// Stringer works best with constants that are consecutive values such as created using iota,
|
||||
// but creates good code regardless. In the future it might also provide custom support for
|
||||
// constant sets that are bit patterns.
|
||||
//
|
||||
// For example, given this snippet,
|
||||
//
|
||||
// package painkiller
|
||||
//
|
||||
// type Pill int
|
||||
//
|
||||
// const (
|
||||
// Placebo Pill = iota
|
||||
// Aspirin
|
||||
// Ibuprofen
|
||||
// Paracetamol
|
||||
// Acetaminophen = Paracetamol
|
||||
// )
|
||||
//
|
||||
// running this command
|
||||
//
|
||||
// stringer -type=Pill
|
||||
//
|
||||
// in the same directory will create the file pill_string.go, in package painkiller,
|
||||
// containing a definition of
|
||||
//
|
||||
// func (Pill) String() string
|
||||
//
|
||||
// That method will translate the value of a Pill constant to the string representation
|
||||
// of the respective constant name, so that the call fmt.Print(painkiller.Aspirin) will
|
||||
// print the string "Aspirin".
|
||||
//
|
||||
// Typically this process would be run using go generate, like this:
|
||||
//
|
||||
// //go:generate stringer -type=Pill
|
||||
//
|
||||
// If multiple constants have the same value, the lexically first matching name will
|
||||
// be used (in the example, Acetaminophen will print as "Paracetamol").
|
||||
//
|
||||
// With no arguments, it processes the package in the current directory.
|
||||
// Otherwise, the arguments must name a single directory holding a Go package
|
||||
// or a set of Go source files that represent a single Go package.
|
||||
//
|
||||
// The -type flag accepts a comma-separated list of types so a single run can
|
||||
// generate methods for multiple types. The default output file is t_string.go,
|
||||
// where t is the lower-cased name of the first type listed. It can be overridden
|
||||
// with the -output flag.
|
||||
//
|
||||
// The -linecomment flag tells stringer to generate the text of any line comment, trimmed
|
||||
// of leading spaces, instead of the constant name. For instance, if the constants above had a
|
||||
// Pill prefix, one could write
|
||||
//
|
||||
// PillAspirin // Aspirin
|
||||
//
|
||||
// to suppress it in the output.
|
||||
package main // import "golang.org/x/tools/cmd/stringer"
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"flag"
|
||||
"fmt"
|
||||
"go/ast"
|
||||
"go/constant"
|
||||
"go/format"
|
||||
"go/token"
|
||||
"go/types"
|
||||
"log"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"sort"
|
||||
"strings"
|
||||
|
||||
"golang.org/x/tools/go/packages"
|
||||
)
|
||||
|
||||
var (
|
||||
typeNames = flag.String("type", "", "comma-separated list of type names; must be set")
|
||||
output = flag.String("output", "", "output file name; default srcdir/<type>_string.go")
|
||||
trimprefix = flag.String("trimprefix", "", "trim the `prefix` from the generated constant names")
|
||||
linecomment = flag.Bool("linecomment", false, "use line comment text as printed text when present")
|
||||
buildTags = flag.String("tags", "", "comma-separated list of build tags to apply")
|
||||
)
|
||||
|
||||
// Usage is a replacement usage function for the flags package.
|
||||
func Usage() {
|
||||
fmt.Fprintf(os.Stderr, "Usage of stringer:\n")
|
||||
fmt.Fprintf(os.Stderr, "\tstringer [flags] -type T [directory]\n")
|
||||
fmt.Fprintf(os.Stderr, "\tstringer [flags] -type T files... # Must be a single package\n")
|
||||
fmt.Fprintf(os.Stderr, "For more information, see:\n")
|
||||
fmt.Fprintf(os.Stderr, "\thttps://pkg.go.dev/golang.org/x/tools/cmd/stringer\n")
|
||||
fmt.Fprintf(os.Stderr, "Flags:\n")
|
||||
flag.PrintDefaults()
|
||||
}
|
||||
|
||||
func main() {
|
||||
log.SetFlags(0)
|
||||
log.SetPrefix("stringer: ")
|
||||
flag.Usage = Usage
|
||||
flag.Parse()
|
||||
if len(*typeNames) == 0 {
|
||||
flag.Usage()
|
||||
os.Exit(2)
|
||||
}
|
||||
types := strings.Split(*typeNames, ",")
|
||||
var tags []string
|
||||
if len(*buildTags) > 0 {
|
||||
tags = strings.Split(*buildTags, ",")
|
||||
}
|
||||
|
||||
// We accept either one directory or a list of files. Which do we have?
|
||||
args := flag.Args()
|
||||
if len(args) == 0 {
|
||||
// Default: process whole package in current directory.
|
||||
args = []string{"."}
|
||||
}
|
||||
|
||||
// Parse the package once.
|
||||
var dir string
|
||||
g := Generator{
|
||||
trimPrefix: *trimprefix,
|
||||
lineComment: *linecomment,
|
||||
}
|
||||
// TODO(suzmue): accept other patterns for packages (directories, list of files, import paths, etc).
|
||||
if len(args) == 1 && isDirectory(args[0]) {
|
||||
dir = args[0]
|
||||
} else {
|
||||
if len(tags) != 0 {
|
||||
log.Fatal("-tags option applies only to directories, not when files are specified")
|
||||
}
|
||||
dir = filepath.Dir(args[0])
|
||||
}
|
||||
|
||||
g.parsePackage(args, tags)
|
||||
|
||||
// Print the header and package clause.
|
||||
g.Printf("// Code generated by \"stringer %s\"; DO NOT EDIT.\n", strings.Join(os.Args[1:], " "))
|
||||
g.Printf("\n")
|
||||
g.Printf("package %s", g.pkg.name)
|
||||
g.Printf("\n")
|
||||
g.Printf("import \"strconv\"\n") // Used by all methods.
|
||||
|
||||
// Run generate for each type.
|
||||
for _, typeName := range types {
|
||||
g.generate(typeName)
|
||||
}
|
||||
|
||||
// Format the output.
|
||||
src := g.format()
|
||||
|
||||
// Write to file.
|
||||
outputName := *output
|
||||
if outputName == "" {
|
||||
baseName := fmt.Sprintf("%s_string.go", types[0])
|
||||
outputName = filepath.Join(dir, strings.ToLower(baseName))
|
||||
}
|
||||
err := os.WriteFile(outputName, src, 0644)
|
||||
if err != nil {
|
||||
log.Fatalf("writing output: %s", err)
|
||||
}
|
||||
}
|
||||
|
||||
// isDirectory reports whether the named file is a directory.
|
||||
func isDirectory(name string) bool {
|
||||
info, err := os.Stat(name)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
return info.IsDir()
|
||||
}
|
||||
|
||||
// Generator holds the state of the analysis. Primarily used to buffer
|
||||
// the output for format.Source.
|
||||
type Generator struct {
|
||||
buf bytes.Buffer // Accumulated output.
|
||||
pkg *Package // Package we are scanning.
|
||||
|
||||
trimPrefix string
|
||||
lineComment bool
|
||||
}
|
||||
|
||||
func (g *Generator) Printf(format string, args ...interface{}) {
|
||||
fmt.Fprintf(&g.buf, format, args...)
|
||||
}
|
||||
|
||||
// File holds a single parsed file and associated data.
|
||||
type File struct {
|
||||
pkg *Package // Package to which this file belongs.
|
||||
file *ast.File // Parsed AST.
|
||||
// These fields are reset for each type being generated.
|
||||
typeName string // Name of the constant type.
|
||||
values []Value // Accumulator for constant values of that type.
|
||||
|
||||
trimPrefix string
|
||||
lineComment bool
|
||||
}
|
||||
|
||||
type Package struct {
|
||||
name string
|
||||
defs map[*ast.Ident]types.Object
|
||||
files []*File
|
||||
}
|
||||
|
||||
// parsePackage analyzes the single package constructed from the patterns and tags.
|
||||
// parsePackage exits if there is an error.
|
||||
func (g *Generator) parsePackage(patterns []string, tags []string) {
|
||||
cfg := &packages.Config{
|
||||
Mode: packages.NeedName | packages.NeedTypes | packages.NeedTypesInfo | packages.NeedSyntax,
|
||||
// TODO: Need to think about constants in test files. Maybe write type_string_test.go
|
||||
// in a separate pass? For later.
|
||||
Tests: false,
|
||||
BuildFlags: []string{fmt.Sprintf("-tags=%s", strings.Join(tags, " "))},
|
||||
}
|
||||
pkgs, err := packages.Load(cfg, patterns...)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
if len(pkgs) != 1 {
|
||||
log.Fatalf("error: %d packages found", len(pkgs))
|
||||
}
|
||||
g.addPackage(pkgs[0])
|
||||
}
|
||||
|
||||
// addPackage adds a type checked Package and its syntax files to the generator.
|
||||
func (g *Generator) addPackage(pkg *packages.Package) {
|
||||
g.pkg = &Package{
|
||||
name: pkg.Name,
|
||||
defs: pkg.TypesInfo.Defs,
|
||||
files: make([]*File, len(pkg.Syntax)),
|
||||
}
|
||||
|
||||
for i, file := range pkg.Syntax {
|
||||
g.pkg.files[i] = &File{
|
||||
file: file,
|
||||
pkg: g.pkg,
|
||||
trimPrefix: g.trimPrefix,
|
||||
lineComment: g.lineComment,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// generate produces the String method for the named type.
|
||||
func (g *Generator) generate(typeName string) {
|
||||
values := make([]Value, 0, 100)
|
||||
for _, file := range g.pkg.files {
|
||||
// Set the state for this run of the walker.
|
||||
file.typeName = typeName
|
||||
file.values = nil
|
||||
if file.file != nil {
|
||||
ast.Inspect(file.file, file.genDecl)
|
||||
values = append(values, file.values...)
|
||||
}
|
||||
}
|
||||
|
||||
if len(values) == 0 {
|
||||
log.Fatalf("no values defined for type %s", typeName)
|
||||
}
|
||||
// Generate code that will fail if the constants change value.
|
||||
g.Printf("func _() {\n")
|
||||
g.Printf("\t// An \"invalid array index\" compiler error signifies that the constant values have changed.\n")
|
||||
g.Printf("\t// Re-run the stringer command to generate them again.\n")
|
||||
g.Printf("\tvar x [1]struct{}\n")
|
||||
for _, v := range values {
|
||||
g.Printf("\t_ = x[%s - %s]\n", v.originalName, v.str)
|
||||
}
|
||||
g.Printf("}\n")
|
||||
runs := splitIntoRuns(values)
|
||||
// The decision of which pattern to use depends on the number of
|
||||
// runs in the numbers. If there's only one, it's easy. For more than
|
||||
// one, there's a tradeoff between complexity and size of the data
|
||||
// and code vs. the simplicity of a map. A map takes more space,
|
||||
// but so does the code. The decision here (crossover at 10) is
|
||||
// arbitrary, but considers that for large numbers of runs the cost
|
||||
// of the linear scan in the switch might become important, and
|
||||
// rather than use yet another algorithm such as binary search,
|
||||
// we punt and use a map. In any case, the likelihood of a map
|
||||
// being necessary for any realistic example other than bitmasks
|
||||
// is very low. And bitmasks probably deserve their own analysis,
|
||||
// to be done some other day.
|
||||
switch {
|
||||
case len(runs) == 1:
|
||||
g.buildOneRun(runs, typeName)
|
||||
case len(runs) <= 10:
|
||||
g.buildMultipleRuns(runs, typeName)
|
||||
default:
|
||||
g.buildMap(runs, typeName)
|
||||
}
|
||||
}
|
||||
|
||||
// splitIntoRuns breaks the values into runs of contiguous sequences.
|
||||
// For example, given 1,2,3,5,6,7 it returns {1,2,3},{5,6,7}.
|
||||
// The input slice is known to be non-empty.
|
||||
func splitIntoRuns(values []Value) [][]Value {
|
||||
// We use stable sort so the lexically first name is chosen for equal elements.
|
||||
sort.Stable(byValue(values))
|
||||
// Remove duplicates. Stable sort has put the one we want to print first,
|
||||
// so use that one. The String method won't care about which named constant
|
||||
// was the argument, so the first name for the given value is the only one to keep.
|
||||
// We need to do this because identical values would cause the switch or map
|
||||
// to fail to compile.
|
||||
j := 1
|
||||
for i := 1; i < len(values); i++ {
|
||||
if values[i].value != values[i-1].value {
|
||||
values[j] = values[i]
|
||||
j++
|
||||
}
|
||||
}
|
||||
values = values[:j]
|
||||
runs := make([][]Value, 0, 10)
|
||||
for len(values) > 0 {
|
||||
// One contiguous sequence per outer loop.
|
||||
i := 1
|
||||
for i < len(values) && values[i].value == values[i-1].value+1 {
|
||||
i++
|
||||
}
|
||||
runs = append(runs, values[:i])
|
||||
values = values[i:]
|
||||
}
|
||||
return runs
|
||||
}
|
||||
|
||||
// format returns the gofmt-ed contents of the Generator's buffer.
|
||||
func (g *Generator) format() []byte {
|
||||
src, err := format.Source(g.buf.Bytes())
|
||||
if err != nil {
|
||||
// Should never happen, but can arise when developing this code.
|
||||
// The user can compile the output to see the error.
|
||||
log.Printf("warning: internal error: invalid Go generated: %s", err)
|
||||
log.Printf("warning: compile the package to analyze the error")
|
||||
return g.buf.Bytes()
|
||||
}
|
||||
return src
|
||||
}
|
||||
|
||||
// Value represents a declared constant.
|
||||
type Value struct {
|
||||
originalName string // The name of the constant.
|
||||
name string // The name with trimmed prefix.
|
||||
// The value is stored as a bit pattern alone. The boolean tells us
|
||||
// whether to interpret it as an int64 or a uint64; the only place
|
||||
// this matters is when sorting.
|
||||
// Much of the time the str field is all we need; it is printed
|
||||
// by Value.String.
|
||||
value uint64 // Will be converted to int64 when needed.
|
||||
signed bool // Whether the constant is a signed type.
|
||||
str string // The string representation given by the "go/constant" package.
|
||||
}
|
||||
|
||||
func (v *Value) String() string {
|
||||
return v.str
|
||||
}
|
||||
|
||||
// byValue lets us sort the constants into increasing order.
|
||||
// We take care in the Less method to sort in signed or unsigned order,
|
||||
// as appropriate.
|
||||
type byValue []Value
|
||||
|
||||
func (b byValue) Len() int { return len(b) }
|
||||
func (b byValue) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
|
||||
func (b byValue) Less(i, j int) bool {
|
||||
if b[i].signed {
|
||||
return int64(b[i].value) < int64(b[j].value)
|
||||
}
|
||||
return b[i].value < b[j].value
|
||||
}
|
||||
|
||||
// genDecl processes one declaration clause.
|
||||
func (f *File) genDecl(node ast.Node) bool {
|
||||
decl, ok := node.(*ast.GenDecl)
|
||||
if !ok || decl.Tok != token.CONST {
|
||||
// We only care about const declarations.
|
||||
return true
|
||||
}
|
||||
// The name of the type of the constants we are declaring.
|
||||
// Can change if this is a multi-element declaration.
|
||||
typ := ""
|
||||
// Loop over the elements of the declaration. Each element is a ValueSpec:
|
||||
// a list of names possibly followed by a type, possibly followed by values.
|
||||
// If the type and value are both missing, we carry down the type (and value,
|
||||
// but the "go/types" package takes care of that).
|
||||
for _, spec := range decl.Specs {
|
||||
vspec := spec.(*ast.ValueSpec) // Guaranteed to succeed as this is CONST.
|
||||
if vspec.Type == nil && len(vspec.Values) > 0 {
|
||||
// "X = 1". With no type but a value. If the constant is untyped,
|
||||
// skip this vspec and reset the remembered type.
|
||||
typ = ""
|
||||
|
||||
// If this is a simple type conversion, remember the type.
|
||||
// We don't mind if this is actually a call; a qualified call won't
|
||||
// be matched (that will be SelectorExpr, not Ident), and only unusual
|
||||
// situations will result in a function call that appears to be
|
||||
// a type conversion.
|
||||
ce, ok := vspec.Values[0].(*ast.CallExpr)
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
id, ok := ce.Fun.(*ast.Ident)
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
typ = id.Name
|
||||
}
|
||||
if vspec.Type != nil {
|
||||
// "X T". We have a type. Remember it.
|
||||
ident, ok := vspec.Type.(*ast.Ident)
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
typ = ident.Name
|
||||
}
|
||||
if typ != f.typeName {
|
||||
// This is not the type we're looking for.
|
||||
continue
|
||||
}
|
||||
// We now have a list of names (from one line of source code) all being
|
||||
// declared with the desired type.
|
||||
// Grab their names and actual values and store them in f.values.
|
||||
for _, name := range vspec.Names {
|
||||
if name.Name == "_" {
|
||||
continue
|
||||
}
|
||||
// This dance lets the type checker find the values for us. It's a
|
||||
// bit tricky: look up the object declared by the name, find its
|
||||
// types.Const, and extract its value.
|
||||
obj, ok := f.pkg.defs[name]
|
||||
if !ok {
|
||||
log.Fatalf("no value for constant %s", name)
|
||||
}
|
||||
info := obj.Type().Underlying().(*types.Basic).Info()
|
||||
if info&types.IsInteger == 0 {
|
||||
log.Fatalf("can't handle non-integer constant type %s", typ)
|
||||
}
|
||||
value := obj.(*types.Const).Val() // Guaranteed to succeed as this is CONST.
|
||||
if value.Kind() != constant.Int {
|
||||
log.Fatalf("can't happen: constant is not an integer %s", name)
|
||||
}
|
||||
i64, isInt := constant.Int64Val(value)
|
||||
u64, isUint := constant.Uint64Val(value)
|
||||
if !isInt && !isUint {
|
||||
log.Fatalf("internal error: value of %s is not an integer: %s", name, value.String())
|
||||
}
|
||||
if !isInt {
|
||||
u64 = uint64(i64)
|
||||
}
|
||||
v := Value{
|
||||
originalName: name.Name,
|
||||
value: u64,
|
||||
signed: info&types.IsUnsigned == 0,
|
||||
str: value.String(),
|
||||
}
|
||||
if c := vspec.Comment; f.lineComment && c != nil && len(c.List) == 1 {
|
||||
v.name = strings.TrimSpace(c.Text())
|
||||
} else {
|
||||
v.name = strings.TrimPrefix(v.originalName, f.trimPrefix)
|
||||
}
|
||||
f.values = append(f.values, v)
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// Helpers
|
||||
|
||||
// usize returns the number of bits of the smallest unsigned integer
|
||||
// type that will hold n. Used to create the smallest possible slice of
|
||||
// integers to use as indexes into the concatenated strings.
|
||||
func usize(n int) int {
|
||||
switch {
|
||||
case n < 1<<8:
|
||||
return 8
|
||||
case n < 1<<16:
|
||||
return 16
|
||||
default:
|
||||
// 2^32 is enough constants for anyone.
|
||||
return 32
|
||||
}
|
||||
}
|
||||
|
||||
// declareIndexAndNameVars declares the index slices and concatenated names
|
||||
// strings representing the runs of values.
|
||||
func (g *Generator) declareIndexAndNameVars(runs [][]Value, typeName string) {
|
||||
var indexes, names []string
|
||||
for i, run := range runs {
|
||||
index, name := g.createIndexAndNameDecl(run, typeName, fmt.Sprintf("_%d", i))
|
||||
if len(run) != 1 {
|
||||
indexes = append(indexes, index)
|
||||
}
|
||||
names = append(names, name)
|
||||
}
|
||||
g.Printf("const (\n")
|
||||
for _, name := range names {
|
||||
g.Printf("\t%s\n", name)
|
||||
}
|
||||
g.Printf(")\n\n")
|
||||
|
||||
if len(indexes) > 0 {
|
||||
g.Printf("var (")
|
||||
for _, index := range indexes {
|
||||
g.Printf("\t%s\n", index)
|
||||
}
|
||||
g.Printf(")\n\n")
|
||||
}
|
||||
}
|
||||
|
||||
// declareIndexAndNameVar is the single-run version of declareIndexAndNameVars
|
||||
func (g *Generator) declareIndexAndNameVar(run []Value, typeName string) {
|
||||
index, name := g.createIndexAndNameDecl(run, typeName, "")
|
||||
g.Printf("const %s\n", name)
|
||||
g.Printf("var %s\n", index)
|
||||
}
|
||||
|
||||
// createIndexAndNameDecl returns the pair of declarations for the run. The caller will add "const" and "var".
|
||||
func (g *Generator) createIndexAndNameDecl(run []Value, typeName string, suffix string) (string, string) {
|
||||
b := new(bytes.Buffer)
|
||||
indexes := make([]int, len(run))
|
||||
for i := range run {
|
||||
b.WriteString(run[i].name)
|
||||
indexes[i] = b.Len()
|
||||
}
|
||||
nameConst := fmt.Sprintf("_%s_name%s = %q", typeName, suffix, b.String())
|
||||
nameLen := b.Len()
|
||||
b.Reset()
|
||||
fmt.Fprintf(b, "_%s_index%s = [...]uint%d{0, ", typeName, suffix, usize(nameLen))
|
||||
for i, v := range indexes {
|
||||
if i > 0 {
|
||||
fmt.Fprintf(b, ", ")
|
||||
}
|
||||
fmt.Fprintf(b, "%d", v)
|
||||
}
|
||||
fmt.Fprintf(b, "}")
|
||||
return b.String(), nameConst
|
||||
}
|
||||
|
||||
// declareNameVars declares the concatenated names string representing all the values in the runs.
|
||||
func (g *Generator) declareNameVars(runs [][]Value, typeName string, suffix string) {
|
||||
g.Printf("const _%s_name%s = \"", typeName, suffix)
|
||||
for _, run := range runs {
|
||||
for i := range run {
|
||||
g.Printf("%s", run[i].name)
|
||||
}
|
||||
}
|
||||
g.Printf("\"\n")
|
||||
}
|
||||
|
||||
// buildOneRun generates the variables and String method for a single run of contiguous values.
|
||||
func (g *Generator) buildOneRun(runs [][]Value, typeName string) {
|
||||
values := runs[0]
|
||||
g.Printf("\n")
|
||||
g.declareIndexAndNameVar(values, typeName)
|
||||
// The generated code is simple enough to write as a Printf format.
|
||||
lessThanZero := ""
|
||||
if values[0].signed {
|
||||
lessThanZero = "i < 0 || "
|
||||
}
|
||||
if values[0].value == 0 { // Signed or unsigned, 0 is still 0.
|
||||
g.Printf(stringOneRun, typeName, usize(len(values)), lessThanZero)
|
||||
} else {
|
||||
g.Printf(stringOneRunWithOffset, typeName, values[0].String(), usize(len(values)), lessThanZero)
|
||||
}
|
||||
}
|
||||
|
||||
// Arguments to format are:
|
||||
//
|
||||
// [1]: type name
|
||||
// [2]: size of index element (8 for uint8 etc.)
|
||||
// [3]: less than zero check (for signed types)
|
||||
const stringOneRun = `func (i %[1]s) String() string {
|
||||
if %[3]si >= %[1]s(len(_%[1]s_index)-1) {
|
||||
return "%[1]s(" + strconv.FormatInt(int64(i), 10) + ")"
|
||||
}
|
||||
return _%[1]s_name[_%[1]s_index[i]:_%[1]s_index[i+1]]
|
||||
}
|
||||
`
|
||||
|
||||
// Arguments to format are:
|
||||
// [1]: type name
|
||||
// [2]: lowest defined value for type, as a string
|
||||
// [3]: size of index element (8 for uint8 etc.)
|
||||
// [4]: less than zero check (for signed types)
|
||||
/*
|
||||
*/
|
||||
const stringOneRunWithOffset = `func (i %[1]s) String() string {
|
||||
i -= %[2]s
|
||||
if %[4]si >= %[1]s(len(_%[1]s_index)-1) {
|
||||
return "%[1]s(" + strconv.FormatInt(int64(i + %[2]s), 10) + ")"
|
||||
}
|
||||
return _%[1]s_name[_%[1]s_index[i] : _%[1]s_index[i+1]]
|
||||
}
|
||||
`
|
||||
|
||||
// buildMultipleRuns generates the variables and String method for multiple runs of contiguous values.
|
||||
// For this pattern, a single Printf format won't do.
|
||||
func (g *Generator) buildMultipleRuns(runs [][]Value, typeName string) {
|
||||
g.Printf("\n")
|
||||
g.declareIndexAndNameVars(runs, typeName)
|
||||
g.Printf("func (i %s) String() string {\n", typeName)
|
||||
g.Printf("\tswitch {\n")
|
||||
for i, values := range runs {
|
||||
if len(values) == 1 {
|
||||
g.Printf("\tcase i == %s:\n", &values[0])
|
||||
g.Printf("\t\treturn _%s_name_%d\n", typeName, i)
|
||||
continue
|
||||
}
|
||||
if values[0].value == 0 && !values[0].signed {
|
||||
// For an unsigned lower bound of 0, "0 <= i" would be redundant.
|
||||
g.Printf("\tcase i <= %s:\n", &values[len(values)-1])
|
||||
} else {
|
||||
g.Printf("\tcase %s <= i && i <= %s:\n", &values[0], &values[len(values)-1])
|
||||
}
|
||||
if values[0].value != 0 {
|
||||
g.Printf("\t\ti -= %s\n", &values[0])
|
||||
}
|
||||
g.Printf("\t\treturn _%s_name_%d[_%s_index_%d[i]:_%s_index_%d[i+1]]\n",
|
||||
typeName, i, typeName, i, typeName, i)
|
||||
}
|
||||
g.Printf("\tdefault:\n")
|
||||
g.Printf("\t\treturn \"%s(\" + strconv.FormatInt(int64(i), 10) + \")\"\n", typeName)
|
||||
g.Printf("\t}\n")
|
||||
g.Printf("}\n")
|
||||
}
|
||||
|
||||
// buildMap handles the case where the space is so sparse a map is a reasonable fallback.
|
||||
// It's a rare situation but has simple code.
|
||||
func (g *Generator) buildMap(runs [][]Value, typeName string) {
|
||||
g.Printf("\n")
|
||||
g.declareNameVars(runs, typeName, "")
|
||||
g.Printf("\nvar _%s_map = map[%s]string{\n", typeName, typeName)
|
||||
n := 0
|
||||
for _, values := range runs {
|
||||
for _, value := range values {
|
||||
g.Printf("\t%s: _%s_name[%d:%d],\n", &value, typeName, n, n+len(value.name))
|
||||
n += len(value.name)
|
||||
}
|
||||
}
|
||||
g.Printf("}\n\n")
|
||||
g.Printf(stringMap, typeName)
|
||||
}
|
||||
|
||||
// Argument to format is the type name.
|
||||
const stringMap = `func (i %[1]s) String() string {
|
||||
if str, ok := _%[1]s_map[i]; ok {
|
||||
return str
|
||||
}
|
||||
return "%[1]s(" + strconv.FormatInt(int64(i), 10) + ")"
|
||||
}
|
||||
`
|
6
vendor/modules.txt
vendored
6
vendor/modules.txt
vendored
@ -58,9 +58,10 @@ github.com/JeffAshton/win_pdh
|
||||
# github.com/MakeNowJust/heredoc v1.0.0
|
||||
## explicit; go 1.12
|
||||
github.com/MakeNowJust/heredoc
|
||||
# github.com/Microsoft/go-winio v0.4.17
|
||||
## explicit; go 1.12
|
||||
# github.com/Microsoft/go-winio v0.6.0
|
||||
## explicit; go 1.17
|
||||
github.com/Microsoft/go-winio
|
||||
github.com/Microsoft/go-winio/internal/socket
|
||||
github.com/Microsoft/go-winio/pkg/guid
|
||||
github.com/Microsoft/go-winio/pkg/security
|
||||
github.com/Microsoft/go-winio/vhd
|
||||
@ -1028,6 +1029,7 @@ golang.org/x/time/rate
|
||||
# golang.org/x/tools v0.8.0
|
||||
## explicit; go 1.18
|
||||
golang.org/x/tools/benchmark/parse
|
||||
golang.org/x/tools/cmd/stringer
|
||||
golang.org/x/tools/container/intsets
|
||||
golang.org/x/tools/go/ast/astutil
|
||||
golang.org/x/tools/go/ast/inspector
|
||||
|
Loading…
Reference in New Issue
Block a user