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vendor: update buildkit with typed errors support

Browse Source 
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi
2020-06-24 22:20:05 -07:00
parent 0269388aa7
commit 2d720a1e0b
619 changed files with 38296 additions and 104947 deletions
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3
vendor/github.com/opencontainers/go-digest/.mailmap generated vendored
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@ -1 +1,4 @@
Aaron Lehmann <aaronl@vitelus.com> <aaron.lehmann@docker.com>
Derek McGowan <derek@mcg.dev> <derek@mcgstyle.net>
Stephen J Day <stephen.day@docker.com> <stevvooe@users.noreply.github.com>
Haibing Zhou <zhouhaibing089@gmail.com>

38
vendor/github.com/opencontainers/go-digest/.pullapprove.yml generated vendored
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@ -1,12 +1,28 @@
approve_by_comment: true
approve_regex: '^(Approved|lgtm|LGTM|:shipit:|:star:|:\+1:|:ship:)'
reject_regex: ^Rejected
reset_on_push: true
author_approval: ignored
signed_off_by:
required: true
reviewers:
teams:
- go-digest-maintainers
name: default
version: 2
requirements:
signed_off_by:
required: true
always_pending:
title_regex: '^WIP'
explanation: 'Work in progress...'
group_defaults:
required: 2
approve_by_comment:
enabled: true
approve_regex: '^LGTM'
reject_regex: '^Rejected'
reset_on_push:
enabled: true
author_approval:
ignored: true
conditions:
branches:
- master
groups:
go-digest:
teams:
- go-digest-maintainers

3
vendor/github.com/opencontainers/go-digest/.travis.yml generated vendored
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@ -1,4 +1,5 @@
language: go
go:
- 1.7
- 1.12.x
- 1.13.x
- master

7
vendor/github.com/opencontainers/runc/LICENSE → vendor/github.com/opencontainers/go-digest/LICENSE generated vendored
View File

@ -1,7 +1,7 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
https://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
@ -176,13 +176,14 @@
END OF TERMS AND CONDITIONS
Copyright 2014 Docker, Inc.
Copyright 2019, 2020 OCI Contributors
Copyright 2016 Docker, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,

191
vendor/github.com/opencontainers/go-digest/LICENSE.code generated vendored
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@ -1,191 +0,0 @@
Apache License
Version 2.0, January 2004
https://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
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within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
Copyright 2016 Docker, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

12
vendor/github.com/opencontainers/go-digest/MAINTAINERS generated vendored
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@ -1,9 +1,5 @@
Aaron Lehmann <aaron.lehmann@docker.com> (@aaronlehmann)
Brandon Philips <brandon.philips@coreos.com> (@philips)
Brendan Burns <bburns@microsoft.com> (@brendandburns)
Derek McGowan <derek@mcgstyle.net> (@dmcgowan)
Jason Bouzane <jbouzane@google.com> (@jbouzane)
John Starks <jostarks@microsoft.com> (@jstarks)
Jonathan Boulle <jon.boulle@coreos.com> (@jonboulle)
Stephen Day <stephen.day@docker.com> (@stevvooe)
Vincent Batts <vbatts@redhat.com> (@vbatts)
Stephen Day <stevvooe@gmail.com> (@stevvooe)
Vincent Batts <vbatts@hashbangbash.com> (@vbatts)
Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp> (@AkihiroSuda)
Sebastiaan van Stijn <github@gone.nl> (@thaJeztah)

70
vendor/github.com/opencontainers/go-digest/README.md generated vendored
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@ -8,20 +8,16 @@ Please see the [godoc](https://godoc.org/github.com/opencontainers/go-digest) fo
# What is a digest?
A digest is just a hash.
A digest is just a [hash](https://en.wikipedia.org/wiki/Hash_function).
The most common use case for a digest is to create a content
identifier for use in [Content Addressable Storage](https://en.wikipedia.org/wiki/Content-addressable_storage)
systems:
The most common use case for a digest is to create a content identifier for use in [Content Addressable Storage](https://en.wikipedia.org/wiki/Content-addressable_storage) systems:
```go
id := digest.FromBytes([]byte("my content"))
```
In the example above, the id can be used to uniquely identify
the byte slice "my content". This allows two disparate applications
to agree on a verifiable identifier without having to trust one
another.
In the example above, the id can be used to uniquely identify the byte slice "my content".
This allows two disparate applications to agree on a verifiable identifier without having to trust one another.
An identifying digest can be verified, as follows:
@ -31,8 +27,7 @@ if id != digest.FromBytes([]byte("my content")) {
}
```
A `Verifier` type can be used to handle cases where an `io.Reader`
makes more sense:
A `Verifier` type can be used to handle cases where an `io.Reader` makes more sense:
```go
rd := getContent()
@ -44,33 +39,28 @@ if !verifier.Verified() {
}
```
Using [Merkle DAGs](https://en.wikipedia.org/wiki/Merkle_tree), this
can power a rich, safe, content distribution system.
Using [Merkle DAGs](https://en.wikipedia.org/wiki/Merkle_tree), this can power a rich, safe, content distribution system.
# Usage
While the [godoc](https://godoc.org/github.com/opencontainers/go-digest) is
considered the best resource, a few important items need to be called
out when using this package.
While the [godoc](https://godoc.org/github.com/opencontainers/go-digest) is considered the best resource, a few important items need to be called out when using this package.
1. Make sure to import the hash implementations into your application
or the package will panic. You should have something like the
following in the main (or other entrypoint) of your application:
1. Make sure to import the hash implementations into your application or the package will panic.
You should have something like the following in the main (or other entrypoint) of your application:
```go
import (
_ "crypto/sha256"
_ "crypto/sha512"
_ "crypto/sha512"
)
```
This may seem inconvenient but it allows you replace the hash
implementations with others, such as https://github.com/stevvooe/resumable.
2. Even though `digest.Digest` may be assemable as a string, _always_
verify your input with `digest.Parse` or use `Digest.Validate`
when accepting untrusted input. While there are measures to
avoid common problems, this will ensure you have valid digests
in the rest of your application.
2. Even though `digest.Digest` may be assemblable as a string, _always_ verify your input with `digest.Parse` or use `Digest.Validate` when accepting untrusted input.
While there are measures to avoid common problems, this will ensure you have valid digests in the rest of your application.
3. While alternative encodings of hash values (digests) are possible (for example, base64), this package deals exclusively with hex-encoded digests.
# Stability
@ -80,25 +70,27 @@ As always, before using a package export, read the [godoc](https://godoc.org/git
# Contributing
This package is considered fairly complete. It has been in production
in thousands (millions?) of deployments and is fairly battle-hardened.
New additions will be met with skepticism. If you think there is a
missing feature, please file a bug clearly describing the problem and
the alternatives you tried before submitting a PR.
This package is considered fairly complete.
It has been in production in thousands (millions?) of deployments and is fairly battle-hardened.
New additions will be met with skepticism.
If you think there is a missing feature, please file a bug clearly describing the problem and the alternatives you tried before submitting a PR.
# Reporting security issues
## Code of Conduct
Please DO NOT file a public issue, instead send your report privately to
security@opencontainers.org.
Participation in the OpenContainers community is governed by [OpenContainer's Code of Conduct][code-of-conduct].
The maintainers take security seriously. If you discover a security issue,
please bring it to their attention right away!
## Security
If you are reporting a security issue, do not create an issue or file a pull
request on GitHub. Instead, disclose the issue responsibly by sending an email
to security@opencontainers.org (which is inhabited only by the maintainers of
the various OCI projects).
If you find an issue, please follow the [security][security] protocol to report it.
# Copyright and license
Copyright © 2016 Docker, Inc. All rights reserved, except as follows. Code is released under the [Apache 2.0 license](LICENSE.code). This `README.md` file and the [`CONTRIBUTING.md`](CONTRIBUTING.md) file are licensed under the Creative Commons Attribution 4.0 International License under the terms and conditions set forth in the file [`LICENSE.docs`](LICENSE.docs). You may obtain a duplicate copy of the same license, titled CC BY-SA 4.0, at http://creativecommons.org/licenses/by-sa/4.0/.
Copyright © 2019, 2020 OCI Contributors
Copyright © 2016 Docker, Inc.
All rights reserved, except as follows.
Code is released under the [Apache 2.0 license](LICENSE).
This `README.md` file and the [`CONTRIBUTING.md`](CONTRIBUTING.md) file are licensed under the Creative Commons Attribution 4.0 International License under the terms and conditions set forth in the file [`LICENSE.docs`](LICENSE.docs).
You may obtain a duplicate copy of the same license, titled CC BY-SA 4.0, at http://creativecommons.org/licenses/by-sa/4.0/.
[security]: https://github.com/opencontainers/org/blob/master/security
[code-of-conduct]: https://github.com/opencontainers/org/blob/master/CODE_OF_CONDUCT.md

1
vendor/github.com/opencontainers/go-digest/algorithm.go generated vendored
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@ -1,3 +1,4 @@
// Copyright 2019, 2020 OCI Contributors
// Copyright 2017 Docker, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");

1
vendor/github.com/opencontainers/go-digest/digest.go generated vendored
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@ -1,3 +1,4 @@
// Copyright 2019, 2020 OCI Contributors
// Copyright 2017 Docker, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");

1
vendor/github.com/opencontainers/go-digest/digester.go generated vendored
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@ -1,3 +1,4 @@
// Copyright 2019, 2020 OCI Contributors
// Copyright 2017 Docker, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");

10
vendor/github.com/opencontainers/go-digest/doc.go generated vendored
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@ -1,3 +1,4 @@
// Copyright 2019, 2020 OCI Contributors
// Copyright 2017 Docker, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
@ -29,8 +30,13 @@
//
// sha256:7173b809ca12ec5dee4506cd86be934c4596dd234ee82c0662eac04a8c2c71dc
//
// In this case, the string "sha256" is the algorithm and the hex bytes are
// the "digest".
// The "algorithm" portion defines both the hashing algorithm used to calculate
// the digest and the encoding of the resulting digest, which defaults to "hex"
// if not otherwise specified. Currently, all supported algorithms have their
// digests encoded in hex strings.
//
// In the example above, the string "sha256" is the algorithm and the hex bytes
// are the "digest".
//
// Because the Digest type is simply a string, once a valid Digest is
// obtained, comparisons are cheap, quick and simple to express with the

3
vendor/github.com/opencontainers/go-digest/go.mod generated vendored Normal file
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@ -0,0 +1,3 @@
module github.com/opencontainers/go-digest
go 1.13

1
vendor/github.com/opencontainers/go-digest/verifiers.go generated vendored
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@ -1,3 +1,4 @@
// Copyright 2019, 2020 OCI Contributors
// Copyright 2017 Docker, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");

17
vendor/github.com/opencontainers/runc/NOTICE generated vendored
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@ -1,17 +0,0 @@
runc
Copyright 2012-2015 Docker, Inc.
This product includes software developed at Docker, Inc. (http://www.docker.com).
The following is courtesy of our legal counsel:
Use and transfer of Docker may be subject to certain restrictions by the
United States and other governments.
It is your responsibility to ensure that your use and/or transfer does not
violate applicable laws.
For more information, please see http://www.bis.doc.gov
See also http://www.apache.org/dev/crypto.html and/or seek legal counsel.

155
vendor/github.com/opencontainers/runc/libcontainer/system/linux.go generated vendored
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@ -1,155 +0,0 @@
// +build linux
package system
import (
"os"
"os/exec"
"syscall" // only for exec
"unsafe"
"github.com/opencontainers/runc/libcontainer/user"
"golang.org/x/sys/unix"
)
// If arg2 is nonzero, set the "child subreaper" attribute of the
// calling process; if arg2 is zero, unset the attribute. When a
// process is marked as a child subreaper, all of the children
// that it creates, and their descendants, will be marked as
// having a subreaper. In effect, a subreaper fulfills the role
// of init(1) for its descendant processes. Upon termination of
// a process that is orphaned (i.e., its immediate parent has
// already terminated) and marked as having a subreaper, the
// nearest still living ancestor subreaper will receive a SIGCHLD
// signal and be able to wait(2) on the process to discover its
// termination status.
const PR_SET_CHILD_SUBREAPER = 36
type ParentDeathSignal int
func (p ParentDeathSignal) Restore() error {
if p == 0 {
return nil
}
current, err := GetParentDeathSignal()
if err != nil {
return err
}
if p == current {
return nil
}
return p.Set()
}
func (p ParentDeathSignal) Set() error {
return SetParentDeathSignal(uintptr(p))
}
func Execv(cmd string, args []string, env []string) error {
name, err := exec.LookPath(cmd)
if err != nil {
return err
}
return syscall.Exec(name, args, env)
}
func Prlimit(pid, resource int, limit unix.Rlimit) error {
_, _, err := unix.RawSyscall6(unix.SYS_PRLIMIT64, uintptr(pid), uintptr(resource), uintptr(unsafe.Pointer(&limit)), uintptr(unsafe.Pointer(&limit)), 0, 0)
if err != 0 {
return err
}
return nil
}
func SetParentDeathSignal(sig uintptr) error {
if err := unix.Prctl(unix.PR_SET_PDEATHSIG, sig, 0, 0, 0); err != nil {
return err
}
return nil
}
func GetParentDeathSignal() (ParentDeathSignal, error) {
var sig int
if err := unix.Prctl(unix.PR_GET_PDEATHSIG, uintptr(unsafe.Pointer(&sig)), 0, 0, 0); err != nil {
return -1, err
}
return ParentDeathSignal(sig), nil
}
func SetKeepCaps() error {
if err := unix.Prctl(unix.PR_SET_KEEPCAPS, 1, 0, 0, 0); err != nil {
return err
}
return nil
}
func ClearKeepCaps() error {
if err := unix.Prctl(unix.PR_SET_KEEPCAPS, 0, 0, 0, 0); err != nil {
return err
}
return nil
}
func Setctty() error {
if err := unix.IoctlSetInt(0, unix.TIOCSCTTY, 0); err != nil {
return err
}
return nil
}
// RunningInUserNS detects whether we are currently running in a user namespace.
// Originally copied from github.com/lxc/lxd/shared/util.go
func RunningInUserNS() bool {
uidmap, err := user.CurrentProcessUIDMap()
if err != nil {
// This kernel-provided file only exists if user namespaces are supported
return false
}
return UIDMapInUserNS(uidmap)
}
func UIDMapInUserNS(uidmap []user.IDMap) bool {
/*
* We assume we are in the initial user namespace if we have a full
* range - 4294967295 uids starting at uid 0.
*/
if len(uidmap) == 1 && uidmap[0].ID == 0 && uidmap[0].ParentID == 0 && uidmap[0].Count == 4294967295 {
return false
}
return true
}
// GetParentNSeuid returns the euid within the parent user namespace
func GetParentNSeuid() int64 {
euid := int64(os.Geteuid())
uidmap, err := user.CurrentProcessUIDMap()
if err != nil {
// This kernel-provided file only exists if user namespaces are supported
return euid
}
for _, um := range uidmap {
if um.ID <= euid && euid <= um.ID+um.Count-1 {
return um.ParentID + euid - um.ID
}
}
return euid
}
// SetSubreaper sets the value i as the subreaper setting for the calling process
func SetSubreaper(i int) error {
return unix.Prctl(PR_SET_CHILD_SUBREAPER, uintptr(i), 0, 0, 0)
}
// GetSubreaper returns the subreaper setting for the calling process
func GetSubreaper() (int, error) {
var i uintptr
if err := unix.Prctl(unix.PR_GET_CHILD_SUBREAPER, uintptr(unsafe.Pointer(&i)), 0, 0, 0); err != nil {
return -1, err
}
return int(i), nil
}

113
vendor/github.com/opencontainers/runc/libcontainer/system/proc.go generated vendored
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@ -1,113 +0,0 @@
package system
import (
"fmt"
"io/ioutil"
"path/filepath"
"strconv"
"strings"
)
// State is the status of a process.
type State rune
const ( // Only values for Linux 3.14 and later are listed here
Dead State = 'X'
DiskSleep State = 'D'
Running State = 'R'
Sleeping State = 'S'
Stopped State = 'T'
TracingStop State = 't'
Zombie State = 'Z'
)
// String forms of the state from proc(5)'s documentation for
// /proc/[pid]/status' "State" field.
func (s State) String() string {
switch s {
case Dead:
return "dead"
case DiskSleep:
return "disk sleep"
case Running:
return "running"
case Sleeping:
return "sleeping"
case Stopped:
return "stopped"
case TracingStop:
return "tracing stop"
case Zombie:
return "zombie"
default:
return fmt.Sprintf("unknown (%c)", s)
}
}
// Stat_t represents the information from /proc/[pid]/stat, as
// described in proc(5) with names based on the /proc/[pid]/status
// fields.
type Stat_t struct {
// PID is the process ID.
PID uint
// Name is the command run by the process.
Name string
// State is the state of the process.
State State
// StartTime is the number of clock ticks after system boot (since
// Linux 2.6).
StartTime uint64
}
// Stat returns a Stat_t instance for the specified process.
func Stat(pid int) (stat Stat_t, err error) {
bytes, err := ioutil.ReadFile(filepath.Join("/proc", strconv.Itoa(pid), "stat"))
if err != nil {
return stat, err
}
return parseStat(string(bytes))
}
// GetProcessStartTime is deprecated. Use Stat(pid) and
// Stat_t.StartTime instead.
func GetProcessStartTime(pid int) (string, error) {
stat, err := Stat(pid)
if err != nil {
return "", err
}
return fmt.Sprintf("%d", stat.StartTime), nil
}
func parseStat(data string) (stat Stat_t, err error) {
// From proc(5), field 2 could contain space and is inside `(` and `)`.
// The following is an example:
// 89653 (gunicorn: maste) S 89630 89653 89653 0 -1 4194560 29689 28896 0 3 146 32 76 19 20 0 1 0 2971844 52965376 3920 18446744073709551615 1 1 0 0 0 0 0 16781312 137447943 0 0 0 17 1 0 0 0 0 0 0 0 0 0 0 0 0 0
i := strings.LastIndex(data, ")")
if i <= 2 || i >= len(data)-1 {
return stat, fmt.Errorf("invalid stat data: %q", data)
}
parts := strings.SplitN(data[:i], "(", 2)
if len(parts) != 2 {
return stat, fmt.Errorf("invalid stat data: %q", data)
}
stat.Name = parts[1]
_, err = fmt.Sscanf(parts[0], "%d", &stat.PID)
if err != nil {
return stat, err
}
// parts indexes should be offset by 3 from the field number given
// proc(5), because parts is zero-indexed and we've removed fields
// one (PID) and two (Name) in the paren-split.
parts = strings.Split(data[i+2:], " ")
var state int
fmt.Sscanf(parts[3-3], "%c", &state)
stat.State = State(state)
fmt.Sscanf(parts[22-3], "%d", &stat.StartTime)
return stat, nil
}

26
vendor/github.com/opencontainers/runc/libcontainer/system/syscall_linux_32.go generated vendored
View File

@ -1,26 +0,0 @@
// +build linux
// +build 386 arm
package system
import (
"golang.org/x/sys/unix"
)
// Setuid sets the uid of the calling thread to the specified uid.
func Setuid(uid int) (err error) {
_, _, e1 := unix.RawSyscall(unix.SYS_SETUID32, uintptr(uid), 0, 0)
if e1 != 0 {
err = e1
}
return
}
// Setgid sets the gid of the calling thread to the specified gid.
func Setgid(gid int) (err error) {
_, _, e1 := unix.RawSyscall(unix.SYS_SETGID32, uintptr(gid), 0, 0)
if e1 != 0 {
err = e1
}
return
}

26
vendor/github.com/opencontainers/runc/libcontainer/system/syscall_linux_64.go generated vendored
View File

@ -1,26 +0,0 @@
// +build linux
// +build arm64 amd64 mips mipsle mips64 mips64le ppc ppc64 ppc64le riscv64 s390x
package system
import (
"golang.org/x/sys/unix"
)
// Setuid sets the uid of the calling thread to the specified uid.
func Setuid(uid int) (err error) {
_, _, e1 := unix.RawSyscall(unix.SYS_SETUID, uintptr(uid), 0, 0)
if e1 != 0 {
err = e1
}
return
}
// Setgid sets the gid of the calling thread to the specified gid.
func Setgid(gid int) (err error) {
_, _, e1 := unix.RawSyscall(unix.SYS_SETGID, uintptr(gid), 0, 0)
if e1 != 0 {
err = e1
}
return
}

12
vendor/github.com/opencontainers/runc/libcontainer/system/sysconfig.go generated vendored
View File

@ -1,12 +0,0 @@
// +build cgo,linux
package system
/*
#include <unistd.h>
*/
import "C"
func GetClockTicks() int {
return int(C.sysconf(C._SC_CLK_TCK))
}

15
vendor/github.com/opencontainers/runc/libcontainer/system/sysconfig_notcgo.go generated vendored
View File

@ -1,15 +0,0 @@
// +build !cgo windows
package system
func GetClockTicks() int {
// TODO figure out a better alternative for platforms where we're missing cgo
//
// TODO Windows. This could be implemented using Win32 QueryPerformanceFrequency().
// https://msdn.microsoft.com/en-us/library/windows/desktop/ms644905(v=vs.85).aspx
//
// An example of its usage can be found here.
// https://msdn.microsoft.com/en-us/library/windows/desktop/dn553408(v=vs.85).aspx
return 100
}

27
vendor/github.com/opencontainers/runc/libcontainer/system/unsupported.go generated vendored
View File

@ -1,27 +0,0 @@
// +build !linux
package system
import (
"os"
"github.com/opencontainers/runc/libcontainer/user"
)
// RunningInUserNS is a stub for non-Linux systems
// Always returns false
func RunningInUserNS() bool {
return false
}
// UIDMapInUserNS is a stub for non-Linux systems
// Always returns false
func UIDMapInUserNS(uidmap []user.IDMap) bool {
return false
}
// GetParentNSeuid returns the euid within the parent user namespace
// Always returns os.Geteuid on non-linux
func GetParentNSeuid() int {
return os.Geteuid()
}

35
vendor/github.com/opencontainers/runc/libcontainer/system/xattrs_linux.go generated vendored
View File

@ -1,35 +0,0 @@
package system
import "golang.org/x/sys/unix"
// Returns a []byte slice if the xattr is set and nil otherwise
// Requires path and its attribute as arguments
func Lgetxattr(path string, attr string) ([]byte, error) {
var sz int
// Start with a 128 length byte array
dest := make([]byte, 128)
sz, errno := unix.Lgetxattr(path, attr, dest)
switch {
case errno == unix.ENODATA:
return nil, errno
case errno == unix.ENOTSUP:
return nil, errno
case errno == unix.ERANGE:
// 128 byte array might just not be good enough,
// A dummy buffer is used to get the real size
// of the xattrs on disk
sz, errno = unix.Lgetxattr(path, attr, []byte{})
if errno != nil {
return nil, errno
}
dest = make([]byte, sz)
sz, errno = unix.Lgetxattr(path, attr, dest)
if errno != nil {
return nil, errno
}
case errno != nil:
return nil, errno
}
return dest[:sz], nil
}

2
vendor/github.com/opencontainers/runc/libcontainer/user/MAINTAINERS generated vendored
View File

@ -1,2 +0,0 @@
Tianon Gravi <admwiggin@gmail.com> (@tianon)
Aleksa Sarai <cyphar@cyphar.com> (@cyphar)

41
vendor/github.com/opencontainers/runc/libcontainer/user/lookup.go generated vendored
View File

@ -1,41 +0,0 @@
package user
import (
"errors"
)
var (
// The current operating system does not provide the required data for user lookups.
ErrUnsupported = errors.New("user lookup: operating system does not provide passwd-formatted data")
// No matching entries found in file.
ErrNoPasswdEntries = errors.New("no matching entries in passwd file")
ErrNoGroupEntries = errors.New("no matching entries in group file")
)
// LookupUser looks up a user by their username in /etc/passwd. If the user
// cannot be found (or there is no /etc/passwd file on the filesystem), then
// LookupUser returns an error.
func LookupUser(username string) (User, error) {
return lookupUser(username)
}
// LookupUid looks up a user by their user id in /etc/passwd. If the user cannot
// be found (or there is no /etc/passwd file on the filesystem), then LookupId
// returns an error.
func LookupUid(uid int) (User, error) {
return lookupUid(uid)
}
// LookupGroup looks up a group by its name in /etc/group. If the group cannot
// be found (or there is no /etc/group file on the filesystem), then LookupGroup
// returns an error.
func LookupGroup(groupname string) (Group, error) {
return lookupGroup(groupname)
}
// LookupGid looks up a group by its group id in /etc/group. If the group cannot
// be found (or there is no /etc/group file on the filesystem), then LookupGid
// returns an error.
func LookupGid(gid int) (Group, error) {
return lookupGid(gid)
}

144
vendor/github.com/opencontainers/runc/libcontainer/user/lookup_unix.go generated vendored
View File

@ -1,144 +0,0 @@
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package user
import (
"io"
"os"
"strconv"
"golang.org/x/sys/unix"
)
// Unix-specific path to the passwd and group formatted files.
const (
unixPasswdPath = "/etc/passwd"
unixGroupPath = "/etc/group"
)
func lookupUser(username string) (User, error) {
return lookupUserFunc(func(u User) bool {
return u.Name == username
})
}
func lookupUid(uid int) (User, error) {
return lookupUserFunc(func(u User) bool {
return u.Uid == uid
})
}
func lookupUserFunc(filter func(u User) bool) (User, error) {
// Get operating system-specific passwd reader-closer.
passwd, err := GetPasswd()
if err != nil {
return User{}, err
}
defer passwd.Close()
// Get the users.
users, err := ParsePasswdFilter(passwd, filter)
if err != nil {
return User{}, err
}
// No user entries found.
if len(users) == 0 {
return User{}, ErrNoPasswdEntries
}
// Assume the first entry is the "correct" one.
return users[0], nil
}
func lookupGroup(groupname string) (Group, error) {
return lookupGroupFunc(func(g Group) bool {
return g.Name == groupname
})
}
func lookupGid(gid int) (Group, error) {
return lookupGroupFunc(func(g Group) bool {
return g.Gid == gid
})
}
func lookupGroupFunc(filter func(g Group) bool) (Group, error) {
// Get operating system-specific group reader-closer.
group, err := GetGroup()
if err != nil {
return Group{}, err
}
defer group.Close()
// Get the users.
groups, err := ParseGroupFilter(group, filter)
if err != nil {
return Group{}, err
}
// No user entries found.
if len(groups) == 0 {
return Group{}, ErrNoGroupEntries
}
// Assume the first entry is the "correct" one.
return groups[0], nil
}
func GetPasswdPath() (string, error) {
return unixPasswdPath, nil
}
func GetPasswd() (io.ReadCloser, error) {
return os.Open(unixPasswdPath)
}
func GetGroupPath() (string, error) {
return unixGroupPath, nil
}
func GetGroup() (io.ReadCloser, error) {
return os.Open(unixGroupPath)
}
// CurrentUser looks up the current user by their user id in /etc/passwd. If the
// user cannot be found (or there is no /etc/passwd file on the filesystem),
// then CurrentUser returns an error.
func CurrentUser() (User, error) {
return LookupUid(unix.Getuid())
}
// CurrentGroup looks up the current user's group by their primary group id's
// entry in /etc/passwd. If the group cannot be found (or there is no
// /etc/group file on the filesystem), then CurrentGroup returns an error.
func CurrentGroup() (Group, error) {
return LookupGid(unix.Getgid())
}
func currentUserSubIDs(fileName string) ([]SubID, error) {
u, err := CurrentUser()
if err != nil {
return nil, err
}
filter := func(entry SubID) bool {
return entry.Name == u.Name || entry.Name == strconv.Itoa(u.Uid)
}
return ParseSubIDFileFilter(fileName, filter)
}
func CurrentUserSubUIDs() ([]SubID, error) {
return currentUserSubIDs("/etc/subuid")
}
func CurrentUserSubGIDs() ([]SubID, error) {
return currentUserSubIDs("/etc/subgid")
}
func CurrentProcessUIDMap() ([]IDMap, error) {
return ParseIDMapFile("/proc/self/uid_map")
}
func CurrentProcessGIDMap() ([]IDMap, error) {
return ParseIDMapFile("/proc/self/gid_map")
}

40
vendor/github.com/opencontainers/runc/libcontainer/user/lookup_windows.go generated vendored
View File

@ -1,40 +0,0 @@
// +build windows
package user
import (
"fmt"
"os/user"
)
func lookupUser(username string) (User, error) {
u, err := user.Lookup(username)
if err != nil {
return User{}, err
}
return userFromOS(u)
}
func lookupUid(uid int) (User, error) {
u, err := user.LookupId(fmt.Sprintf("%d", uid))
if err != nil {
return User{}, err
}
return userFromOS(u)
}
func lookupGroup(groupname string) (Group, error) {
g, err := user.LookupGroup(groupname)
if err != nil {
return Group{}, err
}
return groupFromOS(g)
}
func lookupGid(gid int) (Group, error) {
g, err := user.LookupGroupId(fmt.Sprintf("%d", gid))
if err != nil {
return Group{}, err
}
return groupFromOS(g)
}

608
vendor/github.com/opencontainers/runc/libcontainer/user/user.go generated vendored
View File

@ -1,608 +0,0 @@
package user
import (
"bufio"
"fmt"
"io"
"os"
"os/user"
"strconv"
"strings"
)
const (
minId = 0
maxId = 1<<31 - 1 //for 32-bit systems compatibility
)
var (
ErrRange = fmt.Errorf("uids and gids must be in range %d-%d", minId, maxId)
)
type User struct {
Name string
Pass string
Uid int
Gid int
Gecos string
Home string
Shell string
}
// userFromOS converts an os/user.(*User) to local User
//
// (This does not include Pass, Shell or Gecos)
func userFromOS(u *user.User) (User, error) {
newUser := User{
Name: u.Username,
Home: u.HomeDir,
}
id, err := strconv.Atoi(u.Uid)
if err != nil {
return newUser, err
}
newUser.Uid = id
id, err = strconv.Atoi(u.Gid)
if err != nil {
return newUser, err
}
newUser.Gid = id
return newUser, nil
}
type Group struct {
Name string
Pass string
Gid int
List []string
}
// groupFromOS converts an os/user.(*Group) to local Group
//
// (This does not include Pass, Shell or Gecos)
func groupFromOS(g *user.Group) (Group, error) {
newGroup := Group{
Name: g.Name,
}
id, err := strconv.Atoi(g.Gid)
if err != nil {
return newGroup, err
}
newGroup.Gid = id
return newGroup, nil
}
// SubID represents an entry in /etc/sub{u,g}id
type SubID struct {
Name string
SubID int64
Count int64
}
// IDMap represents an entry in /proc/PID/{u,g}id_map
type IDMap struct {
ID int64
ParentID int64
Count int64
}
func parseLine(line string, v ...interface{}) {
parseParts(strings.Split(line, ":"), v...)
}
func parseParts(parts []string, v ...interface{}) {
if len(parts) == 0 {
return
}
for i, p := range parts {
// Ignore cases where we don't have enough fields to populate the arguments.
// Some configuration files like to misbehave.
if len(v) <= i {
break
}
// Use the type of the argument to figure out how to parse it, scanf() style.
// This is legit.
switch e := v[i].(type) {
case *string:
*e = p
case *int:
// "numbers", with conversion errors ignored because of some misbehaving configuration files.
*e, _ = strconv.Atoi(p)
case *int64:
*e, _ = strconv.ParseInt(p, 10, 64)
case *[]string:
// Comma-separated lists.
if p != "" {
*e = strings.Split(p, ",")
} else {
*e = []string{}
}
default:
// Someone goof'd when writing code using this function. Scream so they can hear us.
panic(fmt.Sprintf("parseLine only accepts {*string, *int, *int64, *[]string} as arguments! %#v is not a pointer!", e))
}
}
}
func ParsePasswdFile(path string) ([]User, error) {
passwd, err := os.Open(path)
if err != nil {
return nil, err
}
defer passwd.Close()
return ParsePasswd(passwd)
}
func ParsePasswd(passwd io.Reader) ([]User, error) {
return ParsePasswdFilter(passwd, nil)
}
func ParsePasswdFileFilter(path string, filter func(User) bool) ([]User, error) {
passwd, err := os.Open(path)
if err != nil {
return nil, err
}
defer passwd.Close()
return ParsePasswdFilter(passwd, filter)
}
func ParsePasswdFilter(r io.Reader, filter func(User) bool) ([]User, error) {
if r == nil {
return nil, fmt.Errorf("nil source for passwd-formatted data")
}
var (
s = bufio.NewScanner(r)
out = []User{}
)
for s.Scan() {
if err := s.Err(); err != nil {
return nil, err
}
line := strings.TrimSpace(s.Text())
if line == "" {
continue
}
// see: man 5 passwd
// name:password:UID:GID:GECOS:directory:shell
// Name:Pass:Uid:Gid:Gecos:Home:Shell
// root:x:0:0:root:/root:/bin/bash
// adm:x:3:4:adm:/var/adm:/bin/false
p := User{}
parseLine(line, &p.Name, &p.Pass, &p.Uid, &p.Gid, &p.Gecos, &p.Home, &p.Shell)
if filter == nil || filter(p) {
out = append(out, p)
}
}
return out, nil
}
func ParseGroupFile(path string) ([]Group, error) {
group, err := os.Open(path)
if err != nil {
return nil, err
}
defer group.Close()
return ParseGroup(group)
}
func ParseGroup(group io.Reader) ([]Group, error) {
return ParseGroupFilter(group, nil)
}
func ParseGroupFileFilter(path string, filter func(Group) bool) ([]Group, error) {
group, err := os.Open(path)
if err != nil {
return nil, err
}
defer group.Close()
return ParseGroupFilter(group, filter)
}
func ParseGroupFilter(r io.Reader, filter func(Group) bool) ([]Group, error) {
if r == nil {
return nil, fmt.Errorf("nil source for group-formatted data")
}
var (
s = bufio.NewScanner(r)
out = []Group{}
)
for s.Scan() {
if err := s.Err(); err != nil {
return nil, err
}
text := s.Text()
if text == "" {
continue
}
// see: man 5 group
// group_name:password:GID:user_list
// Name:Pass:Gid:List
// root:x:0:root
// adm:x:4:root,adm,daemon
p := Group{}
parseLine(text, &p.Name, &p.Pass, &p.Gid, &p.List)
if filter == nil || filter(p) {
out = append(out, p)
}
}
return out, nil
}
type ExecUser struct {
Uid int
Gid int
Sgids []int
Home string
}
// GetExecUserPath is a wrapper for GetExecUser. It reads data from each of the
// given file paths and uses that data as the arguments to GetExecUser. If the
// files cannot be opened for any reason, the error is ignored and a nil
// io.Reader is passed instead.
func GetExecUserPath(userSpec string, defaults *ExecUser, passwdPath, groupPath string) (*ExecUser, error) {
var passwd, group io.Reader
if passwdFile, err := os.Open(passwdPath); err == nil {
passwd = passwdFile
defer passwdFile.Close()
}
if groupFile, err := os.Open(groupPath); err == nil {
group = groupFile
defer groupFile.Close()
}
return GetExecUser(userSpec, defaults, passwd, group)
}
// GetExecUser parses a user specification string (using the passwd and group
// readers as sources for /etc/passwd and /etc/group data, respectively). In
// the case of blank fields or missing data from the sources, the values in
// defaults is used.
//
// GetExecUser will return an error if a user or group literal could not be
// found in any entry in passwd and group respectively.
//
// Examples of valid user specifications are:
// * ""
// * "user"
// * "uid"
// * "user:group"
// * "uid:gid
// * "user:gid"
// * "uid:group"
//
// It should be noted that if you specify a numeric user or group id, they will
// not be evaluated as usernames (only the metadata will be filled). So attempting
// to parse a user with user.Name = "1337" will produce the user with a UID of
// 1337.
func GetExecUser(userSpec string, defaults *ExecUser, passwd, group io.Reader) (*ExecUser, error) {
if defaults == nil {
defaults = new(ExecUser)
}
// Copy over defaults.
user := &ExecUser{
Uid: defaults.Uid,
Gid: defaults.Gid,
Sgids: defaults.Sgids,
Home: defaults.Home,
}
// Sgids slice *cannot* be nil.
if user.Sgids == nil {
user.Sgids = []int{}
}
// Allow for userArg to have either "user" syntax, or optionally "user:group" syntax
var userArg, groupArg string
parseLine(userSpec, &userArg, &groupArg)
// Convert userArg and groupArg to be numeric, so we don't have to execute
// Atoi *twice* for each iteration over lines.
uidArg, uidErr := strconv.Atoi(userArg)
gidArg, gidErr := strconv.Atoi(groupArg)
// Find the matching user.
users, err := ParsePasswdFilter(passwd, func(u User) bool {
if userArg == "" {
// Default to current state of the user.
return u.Uid == user.Uid
}
if uidErr == nil {
// If the userArg is numeric, always treat it as a UID.
return uidArg == u.Uid
}
return u.Name == userArg
})
// If we can't find the user, we have to bail.
if err != nil && passwd != nil {
if userArg == "" {
userArg = strconv.Itoa(user.Uid)
}
return nil, fmt.Errorf("unable to find user %s: %v", userArg, err)
}
var matchedUserName string
if len(users) > 0 {
// First match wins, even if there's more than one matching entry.
matchedUserName = users[0].Name
user.Uid = users[0].Uid
user.Gid = users[0].Gid
user.Home = users[0].Home
} else if userArg != "" {
// If we can't find a user with the given username, the only other valid
// option is if it's a numeric username with no associated entry in passwd.
if uidErr != nil {
// Not numeric.
return nil, fmt.Errorf("unable to find user %s: %v", userArg, ErrNoPasswdEntries)
}
user.Uid = uidArg
// Must be inside valid uid range.
if user.Uid < minId || user.Uid > maxId {
return nil, ErrRange
}
// Okay, so it's numeric. We can just roll with this.
}
// On to the groups. If we matched a username, we need to do this because of
// the supplementary group IDs.
if groupArg != "" || matchedUserName != "" {
groups, err := ParseGroupFilter(group, func(g Group) bool {
// If the group argument isn't explicit, we'll just search for it.
if groupArg == "" {
// Check if user is a member of this group.
for _, u := range g.List {
if u == matchedUserName {
return true
}
}
return false
}
if gidErr == nil {
// If the groupArg is numeric, always treat it as a GID.
return gidArg == g.Gid
}
return g.Name == groupArg
})
if err != nil && group != nil {
return nil, fmt.Errorf("unable to find groups for spec %v: %v", matchedUserName, err)
}
// Only start modifying user.Gid if it is in explicit form.
if groupArg != "" {
if len(groups) > 0 {
// First match wins, even if there's more than one matching entry.
user.Gid = groups[0].Gid
} else {
// If we can't find a group with the given name, the only other valid
// option is if it's a numeric group name with no associated entry in group.
if gidErr != nil {
// Not numeric.
return nil, fmt.Errorf("unable to find group %s: %v", groupArg, ErrNoGroupEntries)
}
user.Gid = gidArg
// Must be inside valid gid range.
if user.Gid < minId || user.Gid > maxId {
return nil, ErrRange
}
// Okay, so it's numeric. We can just roll with this.
}
} else if len(groups) > 0 {
// Supplementary group ids only make sense if in the implicit form.
user.Sgids = make([]int, len(groups))
for i, group := range groups {
user.Sgids[i] = group.Gid
}
}
}
return user, nil
}
// GetAdditionalGroups looks up a list of groups by name or group id
// against the given /etc/group formatted data. If a group name cannot
// be found, an error will be returned. If a group id cannot be found,
// or the given group data is nil, the id will be returned as-is
// provided it is in the legal range.
func GetAdditionalGroups(additionalGroups []string, group io.Reader) ([]int, error) {
var groups = []Group{}
if group != nil {
var err error
groups, err = ParseGroupFilter(group, func(g Group) bool {
for _, ag := range additionalGroups {
if g.Name == ag || strconv.Itoa(g.Gid) == ag {
return true
}
}
return false
})
if err != nil {
return nil, fmt.Errorf("Unable to find additional groups %v: %v", additionalGroups, err)
}
}
gidMap := make(map[int]struct{})
for _, ag := range additionalGroups {
var found bool
for _, g := range groups {
// if we found a matched group either by name or gid, take the
// first matched as correct
if g.Name == ag || strconv.Itoa(g.Gid) == ag {
if _, ok := gidMap[g.Gid]; !ok {
gidMap[g.Gid] = struct{}{}
found = true
break
}
}
}
// we asked for a group but didn't find it. let's check to see
// if we wanted a numeric group
if !found {
gid, err := strconv.Atoi(ag)
if err != nil {
return nil, fmt.Errorf("Unable to find group %s", ag)
}
// Ensure gid is inside gid range.
if gid < minId || gid > maxId {
return nil, ErrRange
}
gidMap[gid] = struct{}{}
}
}
gids := []int{}
for gid := range gidMap {
gids = append(gids, gid)
}
return gids, nil
}
// GetAdditionalGroupsPath is a wrapper around GetAdditionalGroups
// that opens the groupPath given and gives it as an argument to
// GetAdditionalGroups.
func GetAdditionalGroupsPath(additionalGroups []string, groupPath string) ([]int, error) {
var group io.Reader
if groupFile, err := os.Open(groupPath); err == nil {
group = groupFile
defer groupFile.Close()
}
return GetAdditionalGroups(additionalGroups, group)
}
func ParseSubIDFile(path string) ([]SubID, error) {
subid, err := os.Open(path)
if err != nil {
return nil, err
}
defer subid.Close()
return ParseSubID(subid)
}
func ParseSubID(subid io.Reader) ([]SubID, error) {
return ParseSubIDFilter(subid, nil)
}
func ParseSubIDFileFilter(path string, filter func(SubID) bool) ([]SubID, error) {
subid, err := os.Open(path)
if err != nil {
return nil, err
}
defer subid.Close()
return ParseSubIDFilter(subid, filter)
}
func ParseSubIDFilter(r io.Reader, filter func(SubID) bool) ([]SubID, error) {
if r == nil {
return nil, fmt.Errorf("nil source for subid-formatted data")
}
var (
s = bufio.NewScanner(r)
out = []SubID{}
)
for s.Scan() {
if err := s.Err(); err != nil {
return nil, err
}
line := strings.TrimSpace(s.Text())
if line == "" {
continue
}
// see: man 5 subuid
p := SubID{}
parseLine(line, &p.Name, &p.SubID, &p.Count)
if filter == nil || filter(p) {
out = append(out, p)
}
}
return out, nil
}
func ParseIDMapFile(path string) ([]IDMap, error) {
r, err := os.Open(path)
if err != nil {
return nil, err
}
defer r.Close()
return ParseIDMap(r)
}
func ParseIDMap(r io.Reader) ([]IDMap, error) {
return ParseIDMapFilter(r, nil)
}
func ParseIDMapFileFilter(path string, filter func(IDMap) bool) ([]IDMap, error) {
r, err := os.Open(path)
if err != nil {
return nil, err
}
defer r.Close()
return ParseIDMapFilter(r, filter)
}
func ParseIDMapFilter(r io.Reader, filter func(IDMap) bool) ([]IDMap, error) {
if r == nil {
return nil, fmt.Errorf("nil source for idmap-formatted data")
}
var (
s = bufio.NewScanner(r)
out = []IDMap{}
)
for s.Scan() {
if err := s.Err(); err != nil {
return nil, err
}
line := strings.TrimSpace(s.Text())
if line == "" {
continue
}
// see: man 7 user_namespaces
p := IDMap{}
parseParts(strings.Fields(line), &p.ID, &p.ParentID, &p.Count)
if filter == nil || filter(p) {
out = append(out, p)
}
}
return out, nil
}