From f0a29af0f3c77b904425a0a8f66d55f0c23f0490 Mon Sep 17 00:00:00 2001 From: Sebastiaan van Stijn Date: Tue, 16 Jul 2024 22:40:41 +0200 Subject: [PATCH] vendor: docker/docker 2b1097f08088 (removes containerd dependency) full diff: https://github.com/docker/docker/compare/aae044039ca4...2b1097f08088fd387a01c6d6a2a0f6916a39b872 The userns package in libcontainer was integrated into the moby/sys/user module at commit 3778ae603c706494fd1e2c2faf83b406e38d687d. The userns package is used in many places, and currently either depends on runc/libcontainer, or on containerd, both of which have a complex dependency tree. This patch is part of a series of patches to unify the implementations, and to migrate toward that implementation to simplify the dependency tree. [3778ae603c706494fd1e2c2faf83b406e38d687d]: https://github.com/opencontainers/runc/commit/3778ae603c706494fd1e2c2faf83b406e38d687d Signed-off-by: Sebastiaan van Stijn --- vendor.mod | 7 +- vendor.sum | 10 +- .../github.com/containerd/containerd/LICENSE | 191 ------------------ .../github.com/containerd/containerd/NOTICE | 16 -- .../containerd/pkg/userns/userns_linux.go | 62 ------ .../pkg/userns/userns_unsupported.go | 25 --- .../docker/pkg/archive/archive_linux.go | 2 +- vendor/github.com/moby/sys/user/user.go | 1 - .../github.com/moby/sys/user/userns/userns.go | 16 ++ .../moby/sys/user/userns/userns_linux.go | 53 +++++ .../sys/user/userns/userns_linux_fuzzer.go | 8 + .../sys/user/userns/userns_unsupported.go | 6 + vendor/modules.txt | 14 +- 13 files changed, 100 insertions(+), 311 deletions(-) delete mode 100644 vendor/github.com/containerd/containerd/LICENSE delete mode 100644 vendor/github.com/containerd/containerd/NOTICE delete mode 100644 vendor/github.com/containerd/containerd/pkg/userns/userns_linux.go delete mode 100644 vendor/github.com/containerd/containerd/pkg/userns/userns_unsupported.go create mode 100644 vendor/github.com/moby/sys/user/userns/userns.go create mode 100644 vendor/github.com/moby/sys/user/userns/userns_linux.go create mode 100644 vendor/github.com/moby/sys/user/userns/userns_linux_fuzzer.go create mode 100644 vendor/github.com/moby/sys/user/userns/userns_unsupported.go diff --git a/vendor.mod b/vendor.mod index deaa2cb2f3..21a9203e41 100644 --- a/vendor.mod +++ b/vendor.mod @@ -13,7 +13,7 @@ require ( github.com/distribution/reference v0.6.0 github.com/docker/cli-docs-tool v0.8.0 github.com/docker/distribution v2.8.3+incompatible - github.com/docker/docker v27.0.2-0.20240715215214-aae044039ca4+incompatible // master (v-next) + github.com/docker/docker v27.0.2-0.20240725120654-2b1097f08088+incompatible // master (v-next) github.com/docker/docker-credential-helpers v0.8.2 github.com/docker/go-connections v0.5.0 github.com/docker/go-units v0.5.0 @@ -55,12 +55,12 @@ require ( ) require ( + github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24 // indirect github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect github.com/Microsoft/go-winio v0.6.2 // indirect github.com/beorn7/perks v1.0.1 // indirect github.com/cenkalti/backoff/v4 v4.2.1 // indirect github.com/cespare/xxhash/v2 v2.2.0 // indirect - github.com/containerd/containerd v1.7.20 // indirect github.com/containerd/log v0.1.0 // indirect github.com/docker/go v1.5.1-1.0.20160303222718-d30aec9fd63c // indirect github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c // indirect @@ -77,7 +77,7 @@ require ( github.com/miekg/pkcs11 v1.1.1 // indirect github.com/moby/docker-image-spec v1.3.1 // indirect github.com/moby/sys/symlink v0.3.0 // indirect - github.com/moby/sys/user v0.1.0 // indirect + github.com/moby/sys/user v0.2.0 // indirect github.com/prometheus/client_golang v1.17.0 // indirect github.com/prometheus/client_model v0.5.0 // indirect github.com/prometheus/common v0.44.0 // indirect @@ -88,6 +88,7 @@ require ( go.etcd.io/etcd/raft/v3 v3.5.6 // indirect go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.46.1 // indirect go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.21.0 // indirect + go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.19.0 // indirect go.opentelemetry.io/proto/otlp v1.0.0 // indirect golang.org/x/crypto v0.23.0 // indirect golang.org/x/net v0.25.0 // indirect diff --git a/vendor.sum b/vendor.sum index 4911a36792..b157c01ede 100644 --- a/vendor.sum +++ b/vendor.sum @@ -37,8 +37,6 @@ github.com/cloudflare/cfssl v1.6.4/go.mod h1:8b3CQMxfWPAeom3zBnGJ6sd+G1NkL5TXqmD github.com/cockroachdb/datadriven v0.0.0-20200714090401-bf6692d28da5/go.mod h1:h6jFvWxBdQXxjopDMZyH2UVceIRfR84bdzbkoKrsWNo= github.com/cockroachdb/errors v1.2.4/go.mod h1:rQD95gz6FARkaKkQXUksEje/d9a6wBJoCr5oaCLELYA= github.com/cockroachdb/logtags v0.0.0-20190617123548-eb05cc24525f/go.mod h1:i/u985jwjWRlyHXQbwatDASoW0RMlZ/3i9yJHE2xLkI= -github.com/containerd/containerd v1.7.20 h1:Sl6jQYk3TRavaU83h66QMbI2Nqg9Jm6qzwX57Vsn1SQ= -github.com/containerd/containerd v1.7.20/go.mod h1:52GsS5CwquuqPuLncsXwG0t2CiUce+KsNHJZQJvAgR0= github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I= github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo= github.com/containerd/platforms v0.2.1 h1:zvwtM3rz2YHPQsF2CHYM8+KtB5dvhISiXh5ZpSBQv6A= @@ -59,8 +57,8 @@ github.com/docker/cli-docs-tool v0.8.0/go.mod h1:8TQQ3E7mOXoYUs811LiPdUnAhXrcVsB github.com/docker/distribution v2.7.1+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w= github.com/docker/distribution v2.8.3+incompatible h1:AtKxIZ36LoNK51+Z6RpzLpddBirtxJnzDrHLEKxTAYk= github.com/docker/distribution v2.8.3+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w= -github.com/docker/docker v27.0.2-0.20240715215214-aae044039ca4+incompatible h1:OJJ+48ACIraFECLY+qp2Zi5kkr6J8vXm2bzIJqgsS9A= -github.com/docker/docker v27.0.2-0.20240715215214-aae044039ca4+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk= +github.com/docker/docker v27.0.2-0.20240725120654-2b1097f08088+incompatible h1:DzRzhMovKu+wtR1f7Eqtvv276Hpmvph0fICOcp8hS9Y= +github.com/docker/docker v27.0.2-0.20240725120654-2b1097f08088+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk= github.com/docker/docker-credential-helpers v0.8.2 h1:bX3YxiGzFP5sOXWc3bTPEXdEaZSeVMrFgOr3T+zrFAo= github.com/docker/docker-credential-helpers v0.8.2/go.mod h1:P3ci7E3lwkZg6XiHdRKft1KckHiO9a2rNtyFbZ/ry9M= github.com/docker/go v1.5.1-1.0.20160303222718-d30aec9fd63c h1:lzqkGL9b3znc+ZUgi7FlLnqjQhcXxkNM/quxIjBVMD0= @@ -187,8 +185,8 @@ github.com/moby/sys/signal v0.7.1 h1:PrQxdvxcGijdo6UXXo/lU/TvHUWyPhj7UOpSo8tuvk0 github.com/moby/sys/signal v0.7.1/go.mod h1:Se1VGehYokAkrSQwL4tDzHvETwUZlnY7S5XtQ50mQp8= github.com/moby/sys/symlink v0.3.0 h1:GZX89mEZ9u53f97npBy4Rc3vJKj7JBDj/PN2I22GrNU= github.com/moby/sys/symlink v0.3.0/go.mod h1:3eNdhduHmYPcgsJtZXW1W4XUJdZGBIkttZ8xKqPUJq0= -github.com/moby/sys/user v0.1.0 h1:WmZ93f5Ux6het5iituh9x2zAG7NFY9Aqi49jjE1PaQg= -github.com/moby/sys/user v0.1.0/go.mod h1:fKJhFOnsCN6xZ5gSfbM6zaHGgDJMrqt9/reuj4T7MmU= +github.com/moby/sys/user v0.2.0 h1:OnpapJsRp25vkhw8TFG6OLJODNh/3rEwRWtJ3kakwRM= +github.com/moby/sys/user v0.2.0/go.mod h1:RYstrcWOJpVh+6qzUqp2bU3eaRpdiQeKGlKitaH0PM8= github.com/moby/term v0.5.0 h1:xt8Q1nalod/v7BqbG21f8mQPqH+xAaC9C3N3wfWbVP0= github.com/moby/term v0.5.0/go.mod h1:8FzsFHVUBGZdbDsJw/ot+X+d5HLUbvklYLJ9uGfcI3Y= github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q= diff --git a/vendor/github.com/containerd/containerd/LICENSE b/vendor/github.com/containerd/containerd/LICENSE deleted file mode 100644 index 584149b6ee..0000000000 --- a/vendor/github.com/containerd/containerd/LICENSE +++ /dev/null @@ -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 - documentation, if provided along with the Derivative Works; or, - 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 The containerd Authors - - 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. diff --git a/vendor/github.com/containerd/containerd/NOTICE b/vendor/github.com/containerd/containerd/NOTICE deleted file mode 100644 index 8915f02773..0000000000 --- a/vendor/github.com/containerd/containerd/NOTICE +++ /dev/null @@ -1,16 +0,0 @@ -Docker -Copyright 2012-2015 Docker, Inc. - -This product includes software developed at Docker, Inc. (https://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 https://www.bis.doc.gov - -See also https://www.apache.org/dev/crypto.html and/or seek legal counsel. diff --git a/vendor/github.com/containerd/containerd/pkg/userns/userns_linux.go b/vendor/github.com/containerd/containerd/pkg/userns/userns_linux.go deleted file mode 100644 index 6656465efb..0000000000 --- a/vendor/github.com/containerd/containerd/pkg/userns/userns_linux.go +++ /dev/null @@ -1,62 +0,0 @@ -/* - Copyright The containerd Authors. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ - -package userns - -import ( - "bufio" - "fmt" - "os" - "sync" -) - -var ( - inUserNS bool - nsOnce sync.Once -) - -// RunningInUserNS detects whether we are currently running in a user namespace. -// Originally copied from github.com/lxc/lxd/shared/util.go -func RunningInUserNS() bool { - nsOnce.Do(func() { - file, err := os.Open("/proc/self/uid_map") - if err != nil { - // This kernel-provided file only exists if user namespaces are supported - return - } - defer file.Close() - - buf := bufio.NewReader(file) - l, _, err := buf.ReadLine() - if err != nil { - return - } - - line := string(l) - var a, b, c int64 - fmt.Sscanf(line, "%d %d %d", &a, &b, &c) - - /* - * We assume we are in the initial user namespace if we have a full - * range - 4294967295 uids starting at uid 0. - */ - if a == 0 && b == 0 && c == 4294967295 { - return - } - inUserNS = true - }) - return inUserNS -} diff --git a/vendor/github.com/containerd/containerd/pkg/userns/userns_unsupported.go b/vendor/github.com/containerd/containerd/pkg/userns/userns_unsupported.go deleted file mode 100644 index c67f773d0a..0000000000 --- a/vendor/github.com/containerd/containerd/pkg/userns/userns_unsupported.go +++ /dev/null @@ -1,25 +0,0 @@ -//go:build !linux - -/* - Copyright The containerd Authors. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ - -package userns - -// RunningInUserNS is a stub for non-Linux systems -// Always returns false -func RunningInUserNS() bool { - return false -} diff --git a/vendor/github.com/docker/docker/pkg/archive/archive_linux.go b/vendor/github.com/docker/docker/pkg/archive/archive_linux.go index 45ac2aa6ce..9d71f761be 100644 --- a/vendor/github.com/docker/docker/pkg/archive/archive_linux.go +++ b/vendor/github.com/docker/docker/pkg/archive/archive_linux.go @@ -6,8 +6,8 @@ import ( "path/filepath" "strings" - "github.com/containerd/containerd/pkg/userns" "github.com/docker/docker/pkg/system" + "github.com/moby/sys/user/userns" "github.com/pkg/errors" "golang.org/x/sys/unix" ) diff --git a/vendor/github.com/moby/sys/user/user.go b/vendor/github.com/moby/sys/user/user.go index 984466d1ab..198c493679 100644 --- a/vendor/github.com/moby/sys/user/user.go +++ b/vendor/github.com/moby/sys/user/user.go @@ -197,7 +197,6 @@ func ParseGroupFilter(r io.Reader, filter func(Group) bool) ([]Group, error) { for { var line []byte line, isPrefix, err = rd.ReadLine() - if err != nil { // We should return no error if EOF is reached // without a match. diff --git a/vendor/github.com/moby/sys/user/userns/userns.go b/vendor/github.com/moby/sys/user/userns/userns.go new file mode 100644 index 0000000000..56b24c44ad --- /dev/null +++ b/vendor/github.com/moby/sys/user/userns/userns.go @@ -0,0 +1,16 @@ +// Package userns provides utilities to detect whether we are currently running +// in a Linux user namespace. +// +// This code was migrated from [libcontainer/runc], which based its implementation +// on code from [lcx/incus]. +// +// [libcontainer/runc]: https://github.com/opencontainers/runc/blob/3778ae603c706494fd1e2c2faf83b406e38d687d/libcontainer/userns/userns_linux.go#L12-L49 +// [lcx/incus]: https://github.com/lxc/incus/blob/e45085dd42f826b3c8c3228e9733c0b6f998eafe/shared/util.go#L678-L700 +package userns + +// RunningInUserNS detects whether we are currently running in a Linux +// user namespace and memoizes the result. It returns false on non-Linux +// platforms. +func RunningInUserNS() bool { + return inUserNS() +} diff --git a/vendor/github.com/moby/sys/user/userns/userns_linux.go b/vendor/github.com/moby/sys/user/userns/userns_linux.go new file mode 100644 index 0000000000..87c1c38eec --- /dev/null +++ b/vendor/github.com/moby/sys/user/userns/userns_linux.go @@ -0,0 +1,53 @@ +package userns + +import ( + "bufio" + "fmt" + "os" + "sync" +) + +var inUserNS = sync.OnceValue(runningInUserNS) + +// runningInUserNS detects whether we are currently running in a user namespace. +// +// This code was migrated from [libcontainer/runc] and based on an implementation +// from [lcx/incus]. +// +// [libcontainer/runc]: https://github.com/opencontainers/runc/blob/3778ae603c706494fd1e2c2faf83b406e38d687d/libcontainer/userns/userns_linux.go#L12-L49 +// [lcx/incus]: https://github.com/lxc/incus/blob/e45085dd42f826b3c8c3228e9733c0b6f998eafe/shared/util.go#L678-L700 +func runningInUserNS() bool { + file, err := os.Open("/proc/self/uid_map") + if err != nil { + // This kernel-provided file only exists if user namespaces are supported. + return false + } + defer file.Close() + + buf := bufio.NewReader(file) + l, _, err := buf.ReadLine() + if err != nil { + return false + } + + return uidMapInUserNS(string(l)) +} + +func uidMapInUserNS(uidMap string) bool { + if uidMap == "" { + // File exist but empty (the initial state when userns is created, + // see user_namespaces(7)). + return true + } + + var a, b, c int64 + if _, err := fmt.Sscanf(uidMap, "%d %d %d", &a, &b, &c); err != nil { + // Assume we are in a regular, non user namespace. + return false + } + + // As per user_namespaces(7), /proc/self/uid_map of + // the initial user namespace shows 0 0 4294967295. + initNS := a == 0 && b == 0 && c == 4294967295 + return !initNS +} diff --git a/vendor/github.com/moby/sys/user/userns/userns_linux_fuzzer.go b/vendor/github.com/moby/sys/user/userns/userns_linux_fuzzer.go new file mode 100644 index 0000000000..26ba2e16ec --- /dev/null +++ b/vendor/github.com/moby/sys/user/userns/userns_linux_fuzzer.go @@ -0,0 +1,8 @@ +//go:build linux && gofuzz + +package userns + +func FuzzUIDMap(uidmap []byte) int { + _ = uidMapInUserNS(string(uidmap)) + return 1 +} diff --git a/vendor/github.com/moby/sys/user/userns/userns_unsupported.go b/vendor/github.com/moby/sys/user/userns/userns_unsupported.go new file mode 100644 index 0000000000..8ed83072c2 --- /dev/null +++ b/vendor/github.com/moby/sys/user/userns/userns_unsupported.go @@ -0,0 +1,6 @@ +//go:build !linux + +package userns + +// inUserNS is a stub for non-Linux systems. Always returns false. +func inUserNS() bool { return false } diff --git a/vendor/modules.txt b/vendor/modules.txt index 2ce749f266..f78e377b29 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -1,6 +1,8 @@ # dario.cat/mergo v1.0.0 ## explicit; go 1.13 dario.cat/mergo +# github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24 +## explicit; go 1.20 # github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 ## explicit; go 1.16 github.com/Azure/go-ansiterm @@ -21,9 +23,6 @@ github.com/cenkalti/backoff/v4 # github.com/cespare/xxhash/v2 v2.2.0 ## explicit; go 1.11 github.com/cespare/xxhash/v2 -# github.com/containerd/containerd v1.7.20 -## explicit; go 1.21 -github.com/containerd/containerd/pkg/userns # github.com/containerd/log v0.1.0 ## explicit; go 1.20 github.com/containerd/log @@ -56,7 +55,7 @@ github.com/docker/distribution/registry/client/transport github.com/docker/distribution/registry/storage/cache github.com/docker/distribution/registry/storage/cache/memory github.com/docker/distribution/uuid -# github.com/docker/docker v27.0.2-0.20240715215214-aae044039ca4+incompatible +# github.com/docker/docker v27.0.2-0.20240725120654-2b1097f08088+incompatible ## explicit github.com/docker/docker/api github.com/docker/docker/api/types @@ -214,9 +213,10 @@ github.com/moby/sys/signal # github.com/moby/sys/symlink v0.3.0 ## explicit; go 1.17 github.com/moby/sys/symlink -# github.com/moby/sys/user v0.1.0 -## explicit; go 1.17 +# github.com/moby/sys/user v0.2.0 +## explicit; go 1.21 github.com/moby/sys/user +github.com/moby/sys/user/userns # github.com/moby/term v0.5.0 ## explicit; go 1.18 github.com/moby/term @@ -331,6 +331,8 @@ go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/internal go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/internal/envconfig go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/internal/otlpconfig go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/internal/retry +# go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.19.0 +## explicit; go 1.20 # go.opentelemetry.io/otel/metric v1.21.0 ## explicit; go 1.20 go.opentelemetry.io/otel/metric