diff --git a/go.mod b/go.mod index b8a4ca5f7..1e240de76 100644 --- a/go.mod +++ b/go.mod @@ -6,6 +6,8 @@ toolchain go1.22.1 require ( github.com/BurntSushi/toml v1.3.2 + github.com/checkpoint-restore/checkpointctl v1.1.0 + github.com/checkpoint-restore/go-criu/v7 v7.0.0 github.com/containerd/containerd v1.7.14 github.com/containernetworking/cni v1.1.2 github.com/containernetworking/plugins v1.4.1 diff --git a/go.sum b/go.sum index c2bc7cba5..1a220fcdc 100644 --- a/go.sum +++ b/go.sum @@ -31,6 +31,10 @@ github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyY github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44= github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= +github.com/checkpoint-restore/checkpointctl v1.1.0 h1:plS/2zBzbAXO6DH/H+TqD7ZGhz8iQVb+NLgsOJSTWaw= +github.com/checkpoint-restore/checkpointctl v1.1.0/go.mod h1:DtPd9M4bt/jdt+7DodFxm0lrzdevabk3cbni/FL4BY0= +github.com/checkpoint-restore/go-criu/v7 v7.0.0 h1:R4UF/njKOuq8ooG7naFGsCeKsjv5j+rIhgFgSSeC2KY= +github.com/checkpoint-restore/go-criu/v7 v7.0.0/go.mod h1:xD1v3cPww1QYpJR3+XTTdC8hYubPnptIPsT1daXhbr4= github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI= github.com/chzyer/logex v1.2.1 h1:XHDu3E6q+gdHgsdTPH6ImJMIp436vR6MPtH8gP05QzM= github.com/chzyer/logex v1.2.1/go.mod h1:JLbx6lG2kDbNRFnfkgvh4eRJRPX1QCoOIWomwysCBrQ= diff --git a/pkg/crutils/checkpoint_restore_utils.go b/pkg/crutils/checkpoint_restore_utils.go new file mode 100644 index 000000000..07f3b769f --- /dev/null +++ b/pkg/crutils/checkpoint_restore_utils.go @@ -0,0 +1,256 @@ +package crutils + +import ( + "bytes" + "errors" + "fmt" + "io" + "os" + "os/exec" + "path/filepath" + + metadata "github.com/checkpoint-restore/checkpointctl/lib" + "github.com/checkpoint-restore/go-criu/v7/stats" + "github.com/containers/storage/pkg/archive" + "github.com/opencontainers/selinux/go-selinux/label" +) + +// This file mainly exists to make the checkpoint/restore functions +// available for other users. One possible candidate would be CRI-O. + +// CRImportCheckpointWithoutConfig imports the checkpoint archive (input) +// into the directory destination without "config.dump" and "spec.dump" +func CRImportCheckpointWithoutConfig(destination, input string) error { + archiveFile, err := os.Open(input) + if err != nil { + return fmt.Errorf("failed to open checkpoint archive %s for import: %w", input, err) + } + + defer archiveFile.Close() + options := &archive.TarOptions{ + ExcludePatterns: []string{ + // Import everything else besides the container config + metadata.ConfigDumpFile, + metadata.SpecDumpFile, + }, + } + if err = archive.Untar(archiveFile, destination, options); err != nil { + return fmt.Errorf("unpacking of checkpoint archive %s failed: %w", input, err) + } + + return nil +} + +// CRImportCheckpointConfigOnly only imports the checkpoint configuration +// from the checkpoint archive (input) into the directory destination. +// Only the files "config.dump" and "spec.dump" are extracted. +func CRImportCheckpointConfigOnly(destination, input string) error { + archiveFile, err := os.Open(input) + if err != nil { + return fmt.Errorf("failed to open checkpoint archive %s for import: %w", input, err) + } + + defer archiveFile.Close() + options := &archive.TarOptions{ + // Here we only need the files config.dump and spec.dump + ExcludePatterns: []string{ + "ctr.log", + "artifacts", + stats.StatsDump, + metadata.RootFsDiffTar, + metadata.DeletedFilesFile, + metadata.NetworkStatusFile, + metadata.CheckpointDirectory, + metadata.CheckpointVolumesDirectory, + }, + } + if err = archive.Untar(archiveFile, destination, options); err != nil { + return fmt.Errorf("unpacking of checkpoint archive %s failed: %w", input, err) + } + + return nil +} + +// CRRemoveDeletedFiles loads the list of deleted files and if +// it exists deletes all files listed. +func CRRemoveDeletedFiles(id, baseDirectory, containerRootDirectory string) error { + deletedFiles, _, err := metadata.ReadContainerCheckpointDeletedFiles(baseDirectory) + if os.IsNotExist(err) { + // No files to delete. Just return + return nil + } + + if err != nil { + return fmt.Errorf("failed to read deleted files file: %w", err) + } + + for _, deleteFile := range deletedFiles { + // Using RemoveAll as deletedFiles, which is generated from 'podman diff' + // lists completely deleted directories as a single entry: 'D /root'. + if err := os.RemoveAll(filepath.Join(containerRootDirectory, deleteFile)); err != nil { + return fmt.Errorf("failed to delete files from container %s during restore: %w", id, err) + } + } + + return nil +} + +// CRApplyRootFsDiffTar applies the tar archive found in baseDirectory with the +// root file system changes on top of containerRootDirectory +func CRApplyRootFsDiffTar(baseDirectory, containerRootDirectory string) error { + rootfsDiffPath := filepath.Join(baseDirectory, metadata.RootFsDiffTar) + // Only do this if a rootfs-diff.tar actually exists + rootfsDiffFile, err := os.Open(rootfsDiffPath) + if err != nil { + if errors.Is(err, os.ErrNotExist) { + return nil + } + return fmt.Errorf("failed to open root file-system diff file: %w", err) + } + defer rootfsDiffFile.Close() + + if err := archive.Untar(rootfsDiffFile, containerRootDirectory, nil); err != nil { + return fmt.Errorf("failed to apply root file-system diff file %s: %w", rootfsDiffPath, err) + } + + return nil +} + +// CRCreateRootFsDiffTar goes through the 'changes' and can create two files: +// * metadata.RootFsDiffTar will contain all new and changed files +// * metadata.DeletedFilesFile will contain a list of deleted files +// With these two files it is possible to restore the container file system to the same +// state it was during checkpointing. +// Changes to directories (owner, mode) are not handled. +func CRCreateRootFsDiffTar(changes *[]archive.Change, mountPoint, destination string) (includeFiles []string, err error) { + if len(*changes) == 0 { + return includeFiles, nil + } + + var rootfsIncludeFiles []string + var deletedFiles []string + + rootfsDiffPath := filepath.Join(destination, metadata.RootFsDiffTar) + + for _, file := range *changes { + if file.Kind == archive.ChangeAdd { + rootfsIncludeFiles = append(rootfsIncludeFiles, file.Path) + continue + } + if file.Kind == archive.ChangeDelete { + deletedFiles = append(deletedFiles, file.Path) + continue + } + fileName, err := os.Stat(file.Path) + if err != nil { + continue + } + if !fileName.IsDir() && file.Kind == archive.ChangeModify { + rootfsIncludeFiles = append(rootfsIncludeFiles, file.Path) + continue + } + } + + if len(rootfsIncludeFiles) > 0 { + rootfsTar, err := archive.TarWithOptions(mountPoint, &archive.TarOptions{ + Compression: archive.Uncompressed, + IncludeSourceDir: true, + IncludeFiles: rootfsIncludeFiles, + }) + if err != nil { + return includeFiles, fmt.Errorf("exporting root file-system diff to %q: %w", rootfsDiffPath, err) + } + rootfsDiffFile, err := os.Create(rootfsDiffPath) + if err != nil { + return includeFiles, fmt.Errorf("creating root file-system diff file %q: %w", rootfsDiffPath, err) + } + defer rootfsDiffFile.Close() + if _, err = io.Copy(rootfsDiffFile, rootfsTar); err != nil { + return includeFiles, err + } + + includeFiles = append(includeFiles, metadata.RootFsDiffTar) + } + + if len(deletedFiles) == 0 { + return includeFiles, nil + } + + if _, err := metadata.WriteJSONFile(deletedFiles, destination, metadata.DeletedFilesFile); err != nil { + return includeFiles, nil + } + + includeFiles = append(includeFiles, metadata.DeletedFilesFile) + + return includeFiles, nil +} + +// CRCreateFileWithLabel creates an empty file and sets the corresponding ('fileLabel') +// SELinux label on the file. +// This is necessary for CRIU log files because CRIU infects the processes in +// the container with a 'parasite' and this will also try to write to the log files +// from the context of the container processes. +func CRCreateFileWithLabel(directory, fileName, fileLabel string) error { + logFileName := filepath.Join(directory, fileName) + + logFile, err := os.OpenFile(logFileName, os.O_CREATE, 0o600) + if err != nil { + return fmt.Errorf("failed to create file %q: %w", logFileName, err) + } + defer logFile.Close() + if err = label.SetFileLabel(logFileName, fileLabel); err != nil { + return fmt.Errorf("failed to label file %q: %w", logFileName, err) + } + + return nil +} + +// CRRuntimeSupportsCheckpointRestore tests if the given runtime at 'runtimePath' +// supports checkpointing. The checkpoint restore interface has no definition +// but crun implements all commands just as runc does. What runc does is the +// official definition of the checkpoint/restore interface. +func CRRuntimeSupportsCheckpointRestore(runtimePath string) bool { + // Check if the runtime implements checkpointing. Currently only + // runc's and crun's checkpoint/restore implementation is supported. + cmd := exec.Command(runtimePath, "checkpoint", "--help") + if err := cmd.Start(); err != nil { + return false + } + if err := cmd.Wait(); err == nil { + return true + } + return false +} + +// CRRuntimeSupportsCheckpointRestore tests if the runtime at 'runtimePath' +// supports restoring into existing Pods. The runtime needs to support +// the CRIU option --lsm-mount-context and the existence of this is checked +// by this function. In addition it is necessary to at least have CRIU 3.16. +func CRRuntimeSupportsPodCheckpointRestore(runtimePath string) bool { + cmd := exec.Command(runtimePath, "restore", "--lsm-mount-context") + out, _ := cmd.CombinedOutput() + return bytes.Contains(out, []byte("flag needs an argument")) +} + +// CRGetRuntimeFromArchive extracts the checkpoint metadata from the +// given checkpoint archive and returns the runtime used to create +// the given checkpoint archive. +func CRGetRuntimeFromArchive(input string) (*string, error) { + dir, err := os.MkdirTemp("", "checkpoint") + if err != nil { + return nil, err + } + defer os.RemoveAll(dir) + + if err := CRImportCheckpointConfigOnly(dir, input); err != nil { + return nil, err + } + + // Load config.dump from temporary directory + ctrConfig := new(metadata.ContainerConfig) + if _, err = metadata.ReadJSONFile(ctrConfig, dir, metadata.ConfigDumpFile); err != nil { + return nil, err + } + + return &ctrConfig.OCIRuntime, nil +} diff --git a/vendor/github.com/checkpoint-restore/checkpointctl/LICENSE b/vendor/github.com/checkpoint-restore/checkpointctl/LICENSE new file mode 100644 index 000000000..8dada3eda --- /dev/null +++ b/vendor/github.com/checkpoint-restore/checkpointctl/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://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. 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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 + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "{}" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright {yyyy} {name of copyright owner} + + 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. diff --git a/vendor/github.com/checkpoint-restore/checkpointctl/lib/metadata.go b/vendor/github.com/checkpoint-restore/checkpointctl/lib/metadata.go new file mode 100644 index 000000000..70497a0be --- /dev/null +++ b/vendor/github.com/checkpoint-restore/checkpointctl/lib/metadata.go @@ -0,0 +1,145 @@ +// SPDX-License-Identifier: Apache-2.0 + +package metadata + +import ( + "encoding/json" + "fmt" + "os" + "path/filepath" + "time" + + spec "github.com/opencontainers/runtime-spec/specs-go" +) + +const ( + // container archive + ConfigDumpFile = "config.dump" + SpecDumpFile = "spec.dump" + NetworkStatusFile = "network.status" + CheckpointDirectory = "checkpoint" + CheckpointVolumesDirectory = "volumes" + DevShmCheckpointTar = "devshm-checkpoint.tar" + RootFsDiffTar = "rootfs-diff.tar" + DeletedFilesFile = "deleted.files" + DumpLogFile = "dump.log" + RestoreLogFile = "restore.log" + // pod archive + PodOptionsFile = "pod.options" + PodDumpFile = "pod.dump" + // containerd only + StatusFile = "status" + // CRIU Images + PagesPrefix = "pages-" + AmdgpuPagesPrefix = "amdgpu-pages-" +) + +// This is a reduced copy of what Podman uses to store checkpoint metadata +type ContainerConfig struct { + ID string `json:"id"` + Name string `json:"name"` + RootfsImage string `json:"rootfsImage,omitempty"` + RootfsImageRef string `json:"rootfsImageRef,omitempty"` + RootfsImageName string `json:"rootfsImageName,omitempty"` + OCIRuntime string `json:"runtime,omitempty"` + CreatedTime time.Time `json:"createdTime"` + CheckpointedAt time.Time `json:"checkpointedTime"` + RestoredAt time.Time `json:"restoredTime"` + Restored bool `json:"restored"` +} + +type ContainerdStatus struct { + CreatedAt int64 + StartedAt int64 + FinishedAt int64 + ExitCode int32 + Pid uint32 + Reason string + Message string +} + +// This structure is used by the KubernetesContainerCheckpointMetadata structure +type KubernetesCheckpoint struct { + Archive string `json:"archive,omitempty"` + Size int64 `json:"size,omitempty"` + Timestamp int64 `json:"timestamp,omitempty"` +} + +// This structure is the basis for Kubernetes to track how many checkpoints +// for a certain container have been created. +type KubernetesContainerCheckpointMetadata struct { + PodFullName string `json:"podFullName,omitempty"` + ContainerName string `json:"containerName,omitempty"` + TotalSize int64 `json:"totalSize,omitempty"` + Checkpoints []KubernetesCheckpoint `json:"checkpoints"` +} + +func ReadContainerCheckpointSpecDump(checkpointDirectory string) (*spec.Spec, string, error) { + var specDump spec.Spec + specDumpFile, err := ReadJSONFile(&specDump, checkpointDirectory, SpecDumpFile) + + return &specDump, specDumpFile, err +} + +func ReadContainerCheckpointConfigDump(checkpointDirectory string) (*ContainerConfig, string, error) { + var containerConfig ContainerConfig + configDumpFile, err := ReadJSONFile(&containerConfig, checkpointDirectory, ConfigDumpFile) + + return &containerConfig, configDumpFile, err +} + +func ReadContainerCheckpointDeletedFiles(checkpointDirectory string) ([]string, string, error) { + var deletedFiles []string + deletedFilesFile, err := ReadJSONFile(&deletedFiles, checkpointDirectory, DeletedFilesFile) + + return deletedFiles, deletedFilesFile, err +} + +func ReadContainerCheckpointStatusFile(checkpointDirectory string) (*ContainerdStatus, string, error) { + var containerdStatus ContainerdStatus + statusFile, err := ReadJSONFile(&containerdStatus, checkpointDirectory, StatusFile) + + return &containerdStatus, statusFile, err +} + +// WriteJSONFile marshalls and writes the given data to a JSON file +func WriteJSONFile(v interface{}, dir, file string) (string, error) { + fileJSON, err := json.MarshalIndent(v, "", " ") + if err != nil { + return "", fmt.Errorf("error marshalling JSON: %w", err) + } + file = filepath.Join(dir, file) + if err := os.WriteFile(file, fileJSON, 0o600); err != nil { + return "", err + } + + return file, nil +} + +func ReadJSONFile(v interface{}, dir, file string) (string, error) { + file = filepath.Join(dir, file) + content, err := os.ReadFile(file) + if err != nil { + return "", err + } + if err = json.Unmarshal(content, v); err != nil { + return "", fmt.Errorf("failed to unmarshal %s: %w", file, err) + } + + return file, nil +} + +func ByteToString(b int64) string { + const unit = 1024 + if b < unit { + return fmt.Sprintf("%d B", b) + } + div, exp := int64(unit), 0 + for n := b / unit; n >= unit; n /= unit { + div *= unit + exp++ + } + + return fmt.Sprintf("%.1f %ciB", + float64(b)/float64(div), "KMGTPE"[exp]) +} diff --git a/vendor/github.com/checkpoint-restore/go-criu/v7/LICENSE b/vendor/github.com/checkpoint-restore/go-criu/v7/LICENSE new file mode 100644 index 000000000..8dada3eda --- /dev/null +++ b/vendor/github.com/checkpoint-restore/go-criu/v7/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://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. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright {yyyy} {name of copyright owner} + + 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. diff --git a/vendor/github.com/checkpoint-restore/go-criu/v7/stats/stats.pb.go b/vendor/github.com/checkpoint-restore/go-criu/v7/stats/stats.pb.go new file mode 100644 index 000000000..ffec3809b --- /dev/null +++ b/vendor/github.com/checkpoint-restore/go-criu/v7/stats/stats.pb.go @@ -0,0 +1,462 @@ +// SPDX-License-Identifier: MIT + +// Code generated by protoc-gen-go. DO NOT EDIT. +// versions: +// protoc-gen-go v1.30.0 +// protoc v4.23.4 +// source: stats/stats.proto + +package stats + +import ( + protoreflect "google.golang.org/protobuf/reflect/protoreflect" + protoimpl "google.golang.org/protobuf/runtime/protoimpl" + reflect "reflect" + sync "sync" +) + +const ( + // Verify that this generated code is sufficiently up-to-date. + _ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion) + // Verify that runtime/protoimpl is sufficiently up-to-date. + _ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20) +) + +// This one contains statistics about dump/restore process +type DumpStatsEntry struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + FreezingTime *uint32 `protobuf:"varint,1,req,name=freezing_time,json=freezingTime" json:"freezing_time,omitempty"` + FrozenTime *uint32 `protobuf:"varint,2,req,name=frozen_time,json=frozenTime" json:"frozen_time,omitempty"` + MemdumpTime *uint32 `protobuf:"varint,3,req,name=memdump_time,json=memdumpTime" json:"memdump_time,omitempty"` + MemwriteTime *uint32 `protobuf:"varint,4,req,name=memwrite_time,json=memwriteTime" json:"memwrite_time,omitempty"` + PagesScanned *uint64 `protobuf:"varint,5,req,name=pages_scanned,json=pagesScanned" json:"pages_scanned,omitempty"` + PagesSkippedParent *uint64 `protobuf:"varint,6,req,name=pages_skipped_parent,json=pagesSkippedParent" json:"pages_skipped_parent,omitempty"` + PagesWritten *uint64 `protobuf:"varint,7,req,name=pages_written,json=pagesWritten" json:"pages_written,omitempty"` + IrmapResolve *uint32 `protobuf:"varint,8,opt,name=irmap_resolve,json=irmapResolve" json:"irmap_resolve,omitempty"` + PagesLazy *uint64 `protobuf:"varint,9,req,name=pages_lazy,json=pagesLazy" json:"pages_lazy,omitempty"` + PagePipes *uint64 `protobuf:"varint,10,opt,name=page_pipes,json=pagePipes" json:"page_pipes,omitempty"` + PagePipeBufs *uint64 `protobuf:"varint,11,opt,name=page_pipe_bufs,json=pagePipeBufs" json:"page_pipe_bufs,omitempty"` + ShpagesScanned *uint64 `protobuf:"varint,12,opt,name=shpages_scanned,json=shpagesScanned" json:"shpages_scanned,omitempty"` + ShpagesSkippedParent *uint64 `protobuf:"varint,13,opt,name=shpages_skipped_parent,json=shpagesSkippedParent" json:"shpages_skipped_parent,omitempty"` + ShpagesWritten *uint64 `protobuf:"varint,14,opt,name=shpages_written,json=shpagesWritten" json:"shpages_written,omitempty"` +} + +func (x *DumpStatsEntry) Reset() { + *x = DumpStatsEntry{} + if protoimpl.UnsafeEnabled { + mi := &file_stats_stats_proto_msgTypes[0] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *DumpStatsEntry) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*DumpStatsEntry) ProtoMessage() {} + +func (x *DumpStatsEntry) ProtoReflect() protoreflect.Message { + mi := &file_stats_stats_proto_msgTypes[0] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use DumpStatsEntry.ProtoReflect.Descriptor instead. +func (*DumpStatsEntry) Descriptor() ([]byte, []int) { + return file_stats_stats_proto_rawDescGZIP(), []int{0} +} + +func (x *DumpStatsEntry) GetFreezingTime() uint32 { + if x != nil && x.FreezingTime != nil { + return *x.FreezingTime + } + return 0 +} + +func (x *DumpStatsEntry) GetFrozenTime() uint32 { + if x != nil && x.FrozenTime != nil { + return *x.FrozenTime + } + return 0 +} + +func (x *DumpStatsEntry) GetMemdumpTime() uint32 { + if x != nil && x.MemdumpTime != nil { + return *x.MemdumpTime + } + return 0 +} + +func (x *DumpStatsEntry) GetMemwriteTime() uint32 { + if x != nil && x.MemwriteTime != nil { + return *x.MemwriteTime + } + return 0 +} + +func (x *DumpStatsEntry) GetPagesScanned() uint64 { + if x != nil && x.PagesScanned != nil { + return *x.PagesScanned + } + return 0 +} + +func (x *DumpStatsEntry) GetPagesSkippedParent() uint64 { + if x != nil && x.PagesSkippedParent != nil { + return *x.PagesSkippedParent + } + return 0 +} + +func (x *DumpStatsEntry) GetPagesWritten() uint64 { + if x != nil && x.PagesWritten != nil { + return *x.PagesWritten + } + return 0 +} + +func (x *DumpStatsEntry) GetIrmapResolve() uint32 { + if x != nil && x.IrmapResolve != nil { + return *x.IrmapResolve + } + return 0 +} + +func (x *DumpStatsEntry) GetPagesLazy() uint64 { + if x != nil && x.PagesLazy != nil { + return *x.PagesLazy + } + return 0 +} + +func (x *DumpStatsEntry) GetPagePipes() uint64 { + if x != nil && x.PagePipes != nil { + return *x.PagePipes + } + return 0 +} + +func (x *DumpStatsEntry) GetPagePipeBufs() uint64 { + if x != nil && x.PagePipeBufs != nil { + return *x.PagePipeBufs + } + return 0 +} + +func (x *DumpStatsEntry) GetShpagesScanned() uint64 { + if x != nil && x.ShpagesScanned != nil { + return *x.ShpagesScanned + } + return 0 +} + +func (x *DumpStatsEntry) GetShpagesSkippedParent() uint64 { + if x != nil && x.ShpagesSkippedParent != nil { + return *x.ShpagesSkippedParent + } + return 0 +} + +func (x *DumpStatsEntry) GetShpagesWritten() uint64 { + if x != nil && x.ShpagesWritten != nil { + return *x.ShpagesWritten + } + return 0 +} + +type RestoreStatsEntry struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + PagesCompared *uint64 `protobuf:"varint,1,req,name=pages_compared,json=pagesCompared" json:"pages_compared,omitempty"` + PagesSkippedCow *uint64 `protobuf:"varint,2,req,name=pages_skipped_cow,json=pagesSkippedCow" json:"pages_skipped_cow,omitempty"` + ForkingTime *uint32 `protobuf:"varint,3,req,name=forking_time,json=forkingTime" json:"forking_time,omitempty"` + RestoreTime *uint32 `protobuf:"varint,4,req,name=restore_time,json=restoreTime" json:"restore_time,omitempty"` + PagesRestored *uint64 `protobuf:"varint,5,opt,name=pages_restored,json=pagesRestored" json:"pages_restored,omitempty"` +} + +func (x *RestoreStatsEntry) Reset() { + *x = RestoreStatsEntry{} + if protoimpl.UnsafeEnabled { + mi := &file_stats_stats_proto_msgTypes[1] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *RestoreStatsEntry) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*RestoreStatsEntry) ProtoMessage() {} + +func (x *RestoreStatsEntry) ProtoReflect() protoreflect.Message { + mi := &file_stats_stats_proto_msgTypes[1] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use RestoreStatsEntry.ProtoReflect.Descriptor instead. +func (*RestoreStatsEntry) Descriptor() ([]byte, []int) { + return file_stats_stats_proto_rawDescGZIP(), []int{1} +} + +func (x *RestoreStatsEntry) GetPagesCompared() uint64 { + if x != nil && x.PagesCompared != nil { + return *x.PagesCompared + } + return 0 +} + +func (x *RestoreStatsEntry) GetPagesSkippedCow() uint64 { + if x != nil && x.PagesSkippedCow != nil { + return *x.PagesSkippedCow + } + return 0 +} + +func (x *RestoreStatsEntry) GetForkingTime() uint32 { + if x != nil && x.ForkingTime != nil { + return *x.ForkingTime + } + return 0 +} + +func (x *RestoreStatsEntry) GetRestoreTime() uint32 { + if x != nil && x.RestoreTime != nil { + return *x.RestoreTime + } + return 0 +} + +func (x *RestoreStatsEntry) GetPagesRestored() uint64 { + if x != nil && x.PagesRestored != nil { + return *x.PagesRestored + } + return 0 +} + +type StatsEntry struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + Dump *DumpStatsEntry `protobuf:"bytes,1,opt,name=dump" json:"dump,omitempty"` + Restore *RestoreStatsEntry `protobuf:"bytes,2,opt,name=restore" json:"restore,omitempty"` +} + +func (x *StatsEntry) Reset() { + *x = StatsEntry{} + if protoimpl.UnsafeEnabled { + mi := &file_stats_stats_proto_msgTypes[2] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *StatsEntry) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*StatsEntry) ProtoMessage() {} + +func (x *StatsEntry) ProtoReflect() protoreflect.Message { + mi := &file_stats_stats_proto_msgTypes[2] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use StatsEntry.ProtoReflect.Descriptor instead. +func (*StatsEntry) Descriptor() ([]byte, []int) { + return file_stats_stats_proto_rawDescGZIP(), []int{2} +} + +func (x *StatsEntry) GetDump() *DumpStatsEntry { + if x != nil { + return x.Dump + } + return nil +} + +func (x *StatsEntry) GetRestore() *RestoreStatsEntry { + if x != nil { + return x.Restore + } + return nil +} + +var File_stats_stats_proto protoreflect.FileDescriptor + +var file_stats_stats_proto_rawDesc = []byte{ + 0x0a, 0x11, 0x73, 0x74, 0x61, 0x74, 0x73, 0x2f, 0x73, 0x74, 0x61, 0x74, 0x73, 0x2e, 0x70, 0x72, + 0x6f, 0x74, 0x6f, 0x22, 0xad, 0x04, 0x0a, 0x10, 0x64, 0x75, 0x6d, 0x70, 0x5f, 0x73, 0x74, 0x61, + 0x74, 0x73, 0x5f, 0x65, 0x6e, 0x74, 0x72, 0x79, 0x12, 0x23, 0x0a, 0x0d, 0x66, 0x72, 0x65, 0x65, + 0x7a, 0x69, 0x6e, 0x67, 0x5f, 0x74, 0x69, 0x6d, 0x65, 0x18, 0x01, 0x20, 0x02, 0x28, 0x0d, 0x52, + 0x0c, 0x66, 0x72, 0x65, 0x65, 0x7a, 0x69, 0x6e, 0x67, 0x54, 0x69, 0x6d, 0x65, 0x12, 0x1f, 0x0a, + 0x0b, 0x66, 0x72, 0x6f, 0x7a, 0x65, 0x6e, 0x5f, 0x74, 0x69, 0x6d, 0x65, 0x18, 0x02, 0x20, 0x02, + 0x28, 0x0d, 0x52, 0x0a, 0x66, 0x72, 0x6f, 0x7a, 0x65, 0x6e, 0x54, 0x69, 0x6d, 0x65, 0x12, 0x21, + 0x0a, 0x0c, 0x6d, 0x65, 0x6d, 0x64, 0x75, 0x6d, 0x70, 0x5f, 0x74, 0x69, 0x6d, 0x65, 0x18, 0x03, + 0x20, 0x02, 0x28, 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protoimpl.X.CompressGZIP(file_stats_stats_proto_rawDescData) + }) + return file_stats_stats_proto_rawDescData +} + +var file_stats_stats_proto_msgTypes = make([]protoimpl.MessageInfo, 3) +var file_stats_stats_proto_goTypes = []interface{}{ + (*DumpStatsEntry)(nil), // 0: dump_stats_entry + (*RestoreStatsEntry)(nil), // 1: restore_stats_entry + (*StatsEntry)(nil), // 2: stats_entry +} +var file_stats_stats_proto_depIdxs = []int32{ + 0, // 0: stats_entry.dump:type_name -> dump_stats_entry + 1, // 1: stats_entry.restore:type_name -> restore_stats_entry + 2, // [2:2] is the sub-list for method output_type + 2, // [2:2] is the sub-list for method input_type + 2, // [2:2] is the sub-list for extension type_name + 2, // [2:2] is the sub-list for extension extendee + 0, // [0:2] is the sub-list for field type_name +} + +func init() { file_stats_stats_proto_init() } +func file_stats_stats_proto_init() { + if File_stats_stats_proto != nil { + return + } + if !protoimpl.UnsafeEnabled { + file_stats_stats_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*DumpStatsEntry); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_stats_stats_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*RestoreStatsEntry); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_stats_stats_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*StatsEntry); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + } + type x struct{} + out := protoimpl.TypeBuilder{ + File: protoimpl.DescBuilder{ + GoPackagePath: reflect.TypeOf(x{}).PkgPath(), + RawDescriptor: file_stats_stats_proto_rawDesc, + NumEnums: 0, + NumMessages: 3, + NumExtensions: 0, + NumServices: 0, + }, + GoTypes: file_stats_stats_proto_goTypes, + DependencyIndexes: file_stats_stats_proto_depIdxs, + MessageInfos: file_stats_stats_proto_msgTypes, + }.Build() + File_stats_stats_proto = out.File + file_stats_stats_proto_rawDesc = nil + file_stats_stats_proto_goTypes = nil + file_stats_stats_proto_depIdxs = nil +} diff --git a/vendor/github.com/checkpoint-restore/go-criu/v7/stats/stats.proto b/vendor/github.com/checkpoint-restore/go-criu/v7/stats/stats.proto new file mode 100644 index 000000000..64e46181d --- /dev/null +++ b/vendor/github.com/checkpoint-restore/go-criu/v7/stats/stats.proto @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: MIT + +syntax = "proto2"; + +// This one contains statistics about dump/restore process +message dump_stats_entry { + required uint32 freezing_time = 1; + required uint32 frozen_time = 2; + required uint32 memdump_time = 3; + required uint32 memwrite_time = 4; + + required uint64 pages_scanned = 5; + required uint64 pages_skipped_parent = 6; + required uint64 pages_written = 7; + + optional uint32 irmap_resolve = 8; + + required uint64 pages_lazy = 9; + optional uint64 page_pipes = 10; + optional uint64 page_pipe_bufs = 11; + + optional uint64 shpages_scanned = 12; + optional uint64 shpages_skipped_parent = 13; + optional uint64 shpages_written = 14; +} + +message restore_stats_entry { + required uint64 pages_compared = 1; + required uint64 pages_skipped_cow = 2; + + required uint32 forking_time = 3; + required uint32 restore_time = 4; + + optional uint64 pages_restored = 5; +} + +message stats_entry { + optional dump_stats_entry dump = 1; + optional restore_stats_entry restore = 2; +} diff --git a/vendor/github.com/checkpoint-restore/go-criu/v7/stats/types.go b/vendor/github.com/checkpoint-restore/go-criu/v7/stats/types.go new file mode 100644 index 000000000..69d5b0cea --- /dev/null +++ b/vendor/github.com/checkpoint-restore/go-criu/v7/stats/types.go @@ -0,0 +1,14 @@ +package stats + +const ( + StatsDump = "stats-dump" + StatsRestore = "stats-restore" + + ImgServiceMagic = 0x55105940 /* Zlatoust */ + StatsMagic = 0x57093306 /* Ostashkov */ + + PrimaryMagicOffset = 0x0 + SecondaryMagicOffset = 0x4 + SizeOffset = 0x8 + PayloadOffset = 0xC +) diff --git a/vendor/github.com/checkpoint-restore/go-criu/v7/stats/utils.go b/vendor/github.com/checkpoint-restore/go-criu/v7/stats/utils.go new file mode 100644 index 000000000..2b65cc2cd --- /dev/null +++ b/vendor/github.com/checkpoint-restore/go-criu/v7/stats/utils.go @@ -0,0 +1,52 @@ +package stats + +import ( + "encoding/binary" + "errors" + "os" + "path/filepath" + + "google.golang.org/protobuf/proto" +) + +func readStatisticsFile(imgDir *os.File, fileName string) (*StatsEntry, error) { + buf, err := os.ReadFile(filepath.Join(imgDir.Name(), fileName)) + if err != nil { + return nil, err + } + + if binary.LittleEndian.Uint32(buf[PrimaryMagicOffset:SecondaryMagicOffset]) != ImgServiceMagic { + return nil, errors.New("primary magic not found") + } + + if binary.LittleEndian.Uint32(buf[SecondaryMagicOffset:SizeOffset]) != StatsMagic { + return nil, errors.New("secondary magic not found") + } + + payloadSize := binary.LittleEndian.Uint32(buf[SizeOffset:PayloadOffset]) + + st := &StatsEntry{} + if err := proto.Unmarshal(buf[PayloadOffset:PayloadOffset+payloadSize], st); err != nil { + return nil, err + } + + return st, nil +} + +func CriuGetDumpStats(imgDir *os.File) (*DumpStatsEntry, error) { + st, err := readStatisticsFile(imgDir, StatsDump) + if err != nil { + return nil, err + } + + return st.GetDump(), nil +} + +func CriuGetRestoreStats(imgDir *os.File) (*RestoreStatsEntry, error) { + st, err := readStatisticsFile(imgDir, StatsRestore) + if err != nil { + return nil, err + } + + return st.GetRestore(), nil +} diff --git a/vendor/modules.txt b/vendor/modules.txt index 9587929c6..72a5b2cab 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -52,6 +52,12 @@ github.com/acarl005/stripansi # github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 ## explicit; go 1.13 github.com/asaskevich/govalidator +# github.com/checkpoint-restore/checkpointctl v1.1.0 +## explicit; go 1.18 +github.com/checkpoint-restore/checkpointctl/lib +# github.com/checkpoint-restore/go-criu/v7 v7.0.0 +## explicit; go 1.18 +github.com/checkpoint-restore/go-criu/v7/stats # github.com/chzyer/readline v1.5.1 ## explicit; go 1.15 github.com/chzyer/readline