Bump version

Fixes #15

.github/workflows/donate.yml

@@ -0,0 +1,25 @@
+name: donate
+
+on:
+  issues:
+    types: [opened, closed]
+  schedule:
+    - cron: '15 * * * *' # for updating balance
+
+jobs:
+  comment:
+    runs-on: ubuntu-latest
+    steps:
+      - env:
+          # https://github.com/jollheef/donate/blob/master/dashboard/whitelist.go
+          DASHBOARD_ACCESS_TOKEN: ${{ secrets.DONATE_DASHBOARD_ACCESS_TOKEN }}
+          # the scope is current repository only
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          TOOL: "https://github.com/jollheef/donate/archive/master.tar.gz"
+        run: |
+          curl https://nixos.org/nix/install | sh
+          . ~/.nix-profile/etc/profile.d/nix.sh
+          # Use latest stable nixpkgs channel
+          nix-channel --add https://nixos.org/channels/nixos-19.09 nixpkgs
+          nix-channel --update
+          nix run -f $TOOL -c donate-ci

.github/workflows/macos.yml

@@ -4,6 +4,7 @@ on: [push]
 
 jobs:
   build:
+    name: Build on macOS
     runs-on: macOS-latest
     steps:
     - uses: actions/checkout@v1

.github/workflows/ubuntu.yml

@@ -4,6 +4,33 @@ on: [push]
 
 jobs:
   build:
+    name: Build on Ubuntu
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+
+    - name: Build
+      run: go build
+
+  test-unit:
+    name: Unit Testing
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+
+    - name: Install dependencies for tests
+      run: |
+        sudo apt-get update
+        sudo apt-get install qemu
+
+    - name: Bootstrap
+      run: ./tools/qemu-debian-img/bootstrap.sh
+
+    - name: Unit Testing
+      run: go test -parallel 1 -v ./...
+
+  test-end-to-end:
+    name: End-to-End Testing
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v1
@@ -16,8 +43,14 @@ jobs:
         sudo apt-get update
         sudo apt-get install qemu
 
-    - name: Bootstrap
-      run: ./tools/qemu-debian-img/bootstrap.sh
+    - name: End-to-End Testing [Kernel Module]
+      run: |
+        cd examples/kernel-module
+        ../../out-of-tree kernel autogen --max=1
+        ../../out-of-tree pew --qemu-timeout=10m
 
-    - name: Test
-      run: go test -parallel 1 -v ./...
+    - name: End-to-End Testing [Kernel Exploit]
+      run: |
+        cd examples/kernel-exploit
+        ../../out-of-tree kernel autogen --max=1
+        ../../out-of-tree pew --threshold=0 --qemu-timeout=10m

.travis.yml

@@ -1,30 +0,0 @@
-language: go
-
-go:
-  - 1.x
-  - master
-
-os:
-  - linux
-
-dist:
-  - bionic
-
-addons:
-  apt:
-    packages:
-    - qemu
-
-services:
-  - docker
-
-env:
-  - GO111MODULE=on
-
-install: true
-
-before_script:
-  - ./tools/qemu-debian-img/bootstrap.sh
-
-script:
-  - go test -parallel 1 -v ./...

CHANGELOG.md

@@ -4,6 +4,33 @@
 
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.4.0]
+
+### Added
+
+- Parameter `--docker-timeout` may also be set in the artifact
+  configuration file.
+
+- Preload modules before inserting module or run exploit. Modules can
+  be specified by git repository path in the `repo` parameter of
+  section `[[preload]]`. Also, there is a `path` parameter for local
+  projects. Note that `repo` is using a cache that uses last commit
+  hash to check is project needs to be rebuilt, so it's not suitable
+  for local development (except if you will commit each time before
+  run out-of-tree).
+
+- Flag `--disable-preload` to ignore `[[preload]]` section of
+  configuration file.
+
+- Now `out-of-tree log dump` will show the last log if no ID
+  specified.
+
+## [1.3.0] 2020-05-30
+
+### Added
+
+- Support for Ubuntu 20.04 and CentOS 8.
+
 ## [1.2.1] 2019-12-25
 
 ### Fixed
@@ -156,7 +183,7 @@
 - Temporary files is moved to `~/.out-of-tree/tmp/` to avoid docker
   mounting issues on some systems.
 
-## [0.2.0] - 2019-12-01
+## [0.2.0] - 2018-12-01
 
 The main purpose of the release is to simplify installation.
 
@@ -178,7 +205,7 @@ The main purpose of the release is to simplify installation.
 
 - No warning anymore if test.sh is not exists.
 
-## [0.1.0] - 2019-11-20
+## [0.1.0] - 2018-11-20
 
 Initial release that was never tagged.
 

README.md

@@ -1,5 +1,4 @@
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/aba4aad2046b4d1a9a99cf98e22c018b)](https://app.codacy.com/app/jollheef/out-of-tree?utm_source=github.com&utm_medium=referral&utm_content=jollheef/out-of-tree&utm_campaign=Badge_Grade_Dashboard)
-[![Build Status](https://travis-ci.com/jollheef/out-of-tree.svg?branch=master)](https://travis-ci.com/jollheef/out-of-tree)
 [![Go Report Card](https://goreportcard.com/badge/code.dumpstack.io/tools/out-of-tree)](https://goreportcard.com/report/code.dumpstack.io/tools/out-of-tree)
 [![Documentation Status](https://readthedocs.org/projects/out-of-tree/badge/?version=latest)](https://out-of-tree.readthedocs.io/en/latest/?badge=latest)
 [![Donate](https://img.shields.io/badge/donate-paypal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=R8W2UQPZ5X5JE&source=url)
@@ -13,40 +12,25 @@ out-of-tree is for automating some routine actions for creating development envi
 
 ![Screenshot](https://cloudflare-ipfs.com/ipfs/Qmb88fgdDjbWkxz91sWsgmoZZNfVThnCtj37u3mF2s3T3T)
 
-## Requirements
+## Installation
 
-[Qemu](https://www.qemu.org), [docker](https://docker.com) and [golang](https://golang.org) is required.
+### GNU/Linux (with [Nix](https://nixos.org/nix/))
 
-Also do not forget to set GOPATH and PATH e.g.:
+    $ curl -fsSL https://get.docker.com | sh
+	$ sudo usermod -aG docker user && newgrp docker
+    $ curl https://nixos.org/nix/install | sh
+    $ nix-env -iA nixpkgs.out-of-tree
 
-    $ echo 'export GOPATH=$HOME' >> ~/.bashrc
-    $ echo 'export PATH=$PATH:$HOME/bin' >> ~/.bashrc
-    $ source ~/.bashrc
-
-### Gentoo
-
-    # emerge app-emulation/qemu app-emulation/docker dev-lang/go
+Note that adding a user to group *docker* has serious security implications. Check Docker documentation for more information.
 
 ### macOS
 
-    $ brew install go qemu
     $ brew cask install docker
+    $ open --background -a Docker && sleep 1m
+    $ brew tap jollheef/repo
+    $ brew install out-of-tree
 
-### Fedora
-
-    $ sudo dnf install go qemu moby-engine
-
-Also check out [docker post-installation steps](https://docs.docker.com/install/linux/linux-postinstall/).
-
-## Build from source
-
-    $ go get -u code.dumpstack.io/tools/out-of-tree
-
-Then you can check it on kernel module example:
-
-    $ cd $GOPATH/src/code.dumpstack.io/tools/out-of-tree/examples/kernel-module
-    $ out-of-tree kernel autogen # generate kernels based on .out-of-tree.toml
-    $ out-of-tree pew
+Read [documentation](https://out-of-tree.readthedocs.io) for further info.
 
 ## Examples
 
@@ -56,11 +40,11 @@ Run by absolute path
 
 Test only with one kernel:
 
-    $ out-of-tree pew --kernel='Ubuntu:4.10.0-30-generic'
+    $ out-of-tree pew --kernel='Ubuntu:5.4.0-29-generic
 
 Run debug environment:
 
-    $ out-of-tree debug --kernel='Ubuntu:4.10.0-30-generic'
+    $ out-of-tree debug --kernel='Ubuntu:5.4.0-29-generic
 
 Test binary module/exploit with implicit defined test ($BINARY_test)
 
@@ -80,8 +64,7 @@ Use custom kernels config
 
 Generate all kernels
 
-    $ out-of-tree kernel genall --distro Ubuntu --ver 16.04
-
+    $ out-of-tree kernel genall --distro Ubuntu --ver 20.04
 
 ## Troubleshooting
 
@@ -92,9 +75,3 @@ But it'll be better if you'll write the bug report.
 ## Development
 
 Read [Qemu API](qemu/README.md).
-
-### Generate images
-
-    $ cd $GOPATH/src/code.dumpstack.io/tools/out-of-tree/tools/qemu-debian-img/
-    $ docker run --privileged -v $(pwd):/shared -e IMAGE=/shared/ubuntu1404.img -e RELEASE=trusty -t gen-ubuntu1804-image
-    $ docker run --privileged -v $(pwd):/shared -e IMAGE=/shared/ubuntu1604.img -e RELEASE=xenial -t gen-ubuntu1804-image

config/config.go

@@ -102,6 +102,12 @@ func (d Duration) MarshalTOML() (data []byte, err error) {
 	return
 }
 
+type PreloadModule struct {
+	Repo             string
+	Path             string
+	TimeoutAfterLoad Duration
+}
+
 // Artifact is for .out-of-tree.toml
 type Artifact struct {
 	Name             string
@@ -115,12 +121,18 @@ type Artifact struct {
 		Timeout Duration
 	}
 
+	Docker struct {
+		Timeout Duration
+	}
+
 	Mitigations struct {
 		DisableSmep  bool
 		DisableSmap  bool
 		DisableKaslr bool
 		DisableKpti  bool
 	}
+
+	Preload []PreloadModule
 }
 
 func (ka Artifact) checkSupport(ki KernelInfo, km KernelMask) (

db.go

@@ -254,6 +254,24 @@ func getLogByID(db *sql.DB, id int) (le logEntry, err error) {
 	return
 }
 
+func getLastLog(db *sql.DB) (le logEntry, err error) {
+	err = db.QueryRow("SELECT MAX(id), time, name, type, tag, "+
+		"distro_type, distro_release, kernel_release, "+
+		"build_ok, run_ok, test_ok, "+
+		"build_output, run_output, test_output, "+
+		"qemu_stdout, qemu_stderr, "+
+		"kernel_panic, timeout_kill "+
+		"FROM log").Scan(&le.ID, &le.Timestamp,
+		&le.Name, &le.Type, &le.Tag,
+		&le.DistroType, &le.DistroRelease, &le.KernelRelease,
+		&le.Build.Ok, &le.Run.Ok, &le.Test.Ok,
+		&le.Build.Output, &le.Run.Output, &le.Test.Output,
+		&le.Stdout, &le.Stderr,
+		&le.KernelPanic, &le.KilledByTimeout,
+	)
+	return
+}
+
 func createSchema(db *sql.DB) (err error) {
 	err = createMetadataTable(db)
 	if err != nil {

debug.go

@@ -13,7 +13,7 @@ import (
 	"strings"
 	"time"
 
-	"gopkg.in/logrusorgru/aurora.v1"
+	"gopkg.in/logrusorgru/aurora.v2"
 
 	"code.dumpstack.io/tools/out-of-tree/config"
 	"code.dumpstack.io/tools/out-of-tree/qemu"
@@ -113,6 +113,10 @@ func debugHandler(kcfg config.KernelConfig, workPath, kernRegex, gdb string,
 		q.Memory = ka.Qemu.Memory
 	}
 
+	if ka.Docker.Timeout.Duration != 0 {
+		dockerTimeout = ka.Docker.Timeout.Duration
+	}
+
 	q.SetKASLR(false) // set KASLR to false by default because of gdb
 	q.SetSMEP(!ka.Mitigations.DisableSmep)
 	q.SetSMAP(!ka.Mitigations.DisableSmap)
@@ -147,7 +151,7 @@ func debugHandler(kcfg config.KernelConfig, workPath, kernRegex, gdb string,
 			return aurora.BgGreen(aurora.Black(name))
 		}
 
-		return aurora.BgRed(aurora.Gray(name))
+		return aurora.BgRed(aurora.White(name))
 	}
 
 	fmt.Printf("[*] %s %s %s %s\n",
@@ -175,6 +179,12 @@ func debugHandler(kcfg config.KernelConfig, workPath, kernRegex, gdb string,
 	}
 	defer os.RemoveAll(tmp)
 
+	err = preloadModules(q, ka, ki, dockerTimeout)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+
 	outFile, output, err := build(tmp, ka, ki, dockerTimeout)
 	if err != nil {
 		log.Println(err, output)

docs/installation.rst

@@ -1,4 +1,4 @@
-Installation
+Installation (from source)
 ============
 
 OS/Distro-specific
@@ -36,6 +36,20 @@ There's a minimal configuration that you need to apply::
     ];
   }
 
+Gentoo
+------
+
+Install dependencies::
+
+  $ sudo emerge app-emulation/qemu app-emulation/docker dev-lang/go
+
+Fedora
+------
+
+Install dependencies::
+
+  $ sudo dnf install go qemu moby-engine
+
 Common
 ======
 

examples/preload/.out-of-tree.toml

@@ -0,0 +1,12 @@
+name = "out-of-tree preload"
+type = "module"
+
+[[supported_kernels]]
+distro_type = "Ubuntu"
+distro_release = "18.04"
+release_mask = ".*"
+
+[[preload]]
+repo = "https://github.com/jollheef/lkrg"
+#path = "/local/path/to/lkrg"
+timeout_after_load = "1s"

examples/preload/Makefile

@@ -0,0 +1,11 @@
+KERNEL := /lib/modules/$(shell uname -r)/build
+TARGET := module
+
+obj-m += $(TARGET).o
+$(TARGET)-objs = module.o
+
+all:
+	make -C $(KERNEL) M=$(PWD) modules
+
+clean:
+	make -C $(KERNEL) M=$(PWD) clean

examples/preload/README.md

@@ -0,0 +1,5 @@
+# out-of-tree kernel module preload example
+
+See .out-of-tree.toml
+
+Note that it should fail to insert module if lkrg is enabled in the preload list.

examples/preload/module.c

@@ -0,0 +1,17 @@
+#include <linux/module.h>
+#include <linux/slab.h>
+
+int init_module(void)
+{
+	char *argv[] = { "/bin/sh", "--help", NULL };
+	char *envp[] = { NULL };
+
+	/* trigger lkrg */
+	return call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
+}
+
+void cleanup_module(void)
+{
+}
+
+MODULE_LICENSE("GPL");

gen.go

@@ -22,6 +22,9 @@ func genConfig(at config.ArtifactType) (err error) {
 		DistroRelease: "18.04",
 		ReleaseMask:   ".*",
 	})
+	a.Preload = append(a.Preload, config.PreloadModule{
+		Repo: "Repo name (e.g. https://github.com/jollheef/lkrg)",
+	})
 
 	buf, err := toml.Marshal(&a)
 	if err != nil {

go.mod

@@ -1,5 +1,7 @@
 module code.dumpstack.io/tools/out-of-tree
 
+go 1.14
+
 replace code.dumpstack.io/tools/out-of-tree/qemu => ./qemu
 
 replace code.dumpstack.io/tools/out-of-tree/config => ./config
@@ -7,15 +9,19 @@ replace code.dumpstack.io/tools/out-of-tree/config => ./config
 require (
 	github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc // indirect
 	github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf // indirect
+	github.com/go-git/go-git/v5 v5.1.0
+	github.com/kylelemons/godebug v1.1.0 // indirect
 	github.com/mattn/go-runewidth v0.0.4 // indirect
 	github.com/mattn/go-sqlite3 v1.11.0
 	github.com/naoina/go-stringutil v0.1.0 // indirect
 	github.com/naoina/toml v0.1.1
 	github.com/olekukonko/tablewriter v0.0.1
 	github.com/otiai10/copy v1.0.1
+	github.com/otiai10/curr v1.0.0 // indirect
 	github.com/remeh/sizedwaitgroup v0.0.0-20180822144253-5e7302b12cce
+	github.com/stretchr/testify v1.5.1 // indirect
 	github.com/zcalusic/sysinfo v0.0.0-20190429151633-fbadb57345c2
-	golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5
+	golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
-	gopkg.in/logrusorgru/aurora.v1 v1.0.0-20181002194514-a7b3b318ed4e
+	gopkg.in/logrusorgru/aurora.v2 v2.0.0-20190417123914-21d75270181e
 )

go.sum

@@ -1,33 +1,108 @@
+bou.ke/monkey v1.0.1 h1:zEMLInw9xvNakzUUPjfS4Ds6jYPqCFx3m7bRmG5NH2U=
 bou.ke/monkey v1.0.1/go.mod h1:FgHuK96Rv2Nlf+0u1OOVDpCMdsWyOFmeeketDHE7LIg=
+github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7/go.mod h1:6zEj6s6u/ghQa61ZWa/C2Aw3RkjiTBOix7dkqa1VLIs=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc h1:cAKDfWh5VpdgMhJosfJnn5/FoN2SRZ4p7fJNX58YPaU=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf h1:qet1QNfXsQxTZqLG4oE62mJzwPIB8+Tee4RNCL9ulrY=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
+github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/emirpasic/gods v1.12.0 h1:QAUIPSaCu4G+POclxeqb3F+WPpdKqFGlw36+yOzGlrg=
+github.com/emirpasic/gods v1.12.0/go.mod h1:YfzfFFoVP/catgzJb4IKIqXjX78Ha8FMSDh3ymbK86o=
+github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
+github.com/gliderlabs/ssh v0.2.2/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
+github.com/go-git/gcfg v1.5.0 h1:Q5ViNfGF8zFgyJWPqYwA7qGFoMTEiBmdlkcfRmpIMa4=
+github.com/go-git/gcfg v1.5.0/go.mod h1:5m20vg6GwYabIxaOonVkTdrILxQMpEShl1xiMF4ua+E=
+github.com/go-git/go-billy/v5 v5.0.0 h1:7NQHvd9FVid8VL4qVUMm8XifBK+2xCoZ2lSk0agRrHM=
+github.com/go-git/go-billy/v5 v5.0.0/go.mod h1:pmpqyWchKfYfrkb/UVH4otLvyi/5gJlGI4Hb3ZqZ3W0=
+github.com/go-git/go-git v1.0.0 h1:YcN9iDGDoXuIw0vHls6rINwV416HYa0EB2X+RBsyYp4=
+github.com/go-git/go-git v4.7.0+incompatible h1:+W9rgGY4DOKKdX2x6HxSR7HNeTxqiKrOvKnuittYVdA=
+github.com/go-git/go-git-fixtures/v4 v4.0.1/go.mod h1:m+ICp2rF3jDhFgEZ/8yziagdT1C+ZpZcrJjappBCDSw=
+github.com/go-git/go-git/v5 v5.1.0 h1:HxJn9g/E7eYvKW3Fm7Jt4ee8LXfPOm/H1cdDu8vEssk=
+github.com/go-git/go-git/v5 v5.1.0/go.mod h1:ZKfuPUoY1ZqIG4QG9BDBh3G4gLM5zvPuSJAozQrZuyM=
+github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/imdario/mergo v0.3.9 h1:UauaLniWCFHWd+Jp9oCEkTBj8VO/9DKg3PV3VCNMDIg=
+github.com/imdario/mergo v0.3.9/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
+github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 h1:BQSFePA1RWJOlocH6Fxy8MmwDt+yVQYULKfN0RoTN8A=
+github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99/go.mod h1:1lJo3i6rXxKeerYnT8Nvf0QmHCRC1n8sfWVwXF2Frvo=
+github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
+github.com/kevinburke/ssh_config v0.0.0-20190725054713-01f96b0aa0cd h1:Coekwdh0v2wtGp9Gmz1Ze3eVRAWJMLokvN3QjdzCHLY=
+github.com/kevinburke/ssh_config v0.0.0-20190725054713-01f96b0aa0cd/go.mod h1:CT57kijsi8u/K/BOFA39wgDQJ9CxiF4nAY/ojJ6r6mM=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
+github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
 github.com/mattn/go-runewidth v0.0.4 h1:2BvfKmzob6Bmd4YsL0zygOqfdFnK7GR4QL06Do4/p7Y=
 github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/mattn/go-sqlite3 v1.11.0 h1:LDdKkqtYlom37fkvqs8rMPFKAMe8+SgjbwZ6ex1/A/Q=
 github.com/mattn/go-sqlite3 v1.11.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
+github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
+github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/naoina/go-stringutil v0.1.0 h1:rCUeRUHjBjGTSHl0VC00jUPLz8/F9dDzYI70Hzifhks=
 github.com/naoina/go-stringutil v0.1.0/go.mod h1:XJ2SJL9jCtBh+P9q5btrd/Ylo8XwT/h1USek5+NqSA0=
 github.com/naoina/toml v0.1.1 h1:PT/lllxVVN0gzzSqSlHEmP8MJB4MY2U7STGxiouV4X8=
 github.com/naoina/toml v0.1.1/go.mod h1:NBIhNtsFMo3G2szEBne+bO4gS192HuIYRqfvOWb4i1E=
+github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/olekukonko/tablewriter v0.0.1 h1:b3iUnf1v+ppJiOfNX4yxxqfWKMQPZR5yoh8urCTFX88=
 github.com/olekukonko/tablewriter v0.0.1/go.mod h1:vsDQFd/mU46D+Z4whnwzcISnGGzXWMclvtLoiIKAKIo=
 github.com/otiai10/copy v1.0.1 h1:gtBjD8aq4nychvRZ2CyJvFWAw0aja+VHazDdruZKGZA=
 github.com/otiai10/copy v1.0.1/go.mod h1:8bMCJrAqOtN/d9oyh5HR7HhLQMvcGMpGdwRDYsfOCHc=
+github.com/otiai10/curr v0.0.0-20150429015615-9b4961190c95/go.mod h1:9qAhocn7zKJG+0mI8eUu6xqkFDYS2kb2saOteoSB3cE=
+github.com/otiai10/curr v1.0.0 h1:TJIWdbX0B+kpNagQrjgq8bCMrbhiuX73M2XwgtDMoOI=
+github.com/otiai10/curr v1.0.0/go.mod h1:LskTG5wDwr8Rs+nNQ+1LlxRjAtTZZjtJW4rMXl6j4vs=
+github.com/otiai10/mint v1.2.3 h1:PsrRBmrxR68kyNu6YlqYHbNlItc5vOkuS6LBEsNttVA=
 github.com/otiai10/mint v1.2.3/go.mod h1:YnfyPNhBvnY8bW4SGQHCs/aAFhkgySlMZbrF5U0bOVw=
+github.com/otiai10/mint v1.3.0 h1:Ady6MKVezQwHBkGzLFbrsywyp09Ah7rkmfjV3Bcr5uc=
+github.com/otiai10/mint v1.3.0/go.mod h1:F5AjcsTsWUqX+Na9fpHb52P8pcRX2CI6A3ctIT91xUo=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/remeh/sizedwaitgroup v0.0.0-20180822144253-5e7302b12cce h1:aP+C+YbHZfOQlutA4p4soHi7rVUqHQdWEVMSkHfDTqY=
 github.com/remeh/sizedwaitgroup v0.0.0-20180822144253-5e7302b12cce/go.mod h1:3j2R4OIe/SeS6YDhICBy22RWjJC5eNCJ1V+9+NVNYlo=
+github.com/sergi/go-diff v1.1.0 h1:we8PVUC3FE2uYfodKH/nBHMSetSfHDR6scGdBi+erh0=
+github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
+github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
+github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/xanzy/ssh-agent v0.2.1 h1:TCbipTQL2JiiCprBWx9frJ2eJlCYT00NmctrHxVAr70=
+github.com/xanzy/ssh-agent v0.2.1/go.mod h1:mLlQY/MoOhWBj+gOGMQkOeiEvkx+8pJSI+0Bx9h2kr4=
 github.com/zcalusic/sysinfo v0.0.0-20190429151633-fbadb57345c2 h1:uMiaKNX5zFLOa6nNtun+d/lpV5bOBh7BvE4q9jfZacQ=
 github.com/zcalusic/sysinfo v0.0.0-20190429151633-fbadb57345c2/go.mod h1:zAn3FAIbgZPYnutDND49Ivf8sb/mXYk8UjZdqMswgHg=
+golang.org/x/crypto v0.0.0-20190219172222-a4c6cb3142f2/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5 h1:58fnuSXlxZmFdJyvtTFVmVhcMLU6v5fEb/ok4wyqtNU=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073 h1:xMPOj6Pz6UipU1wXLkrtqpHbR0AVFnyPEQq/wRWz9lM=
+golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20200301022130-244492dfa37a h1:GuSPYbZzB5/dcLNCwLQLsg3obCJtX9IJhpXkvY7kzk0=
+golang.org/x/net v0.0.0-20200301022130-244492dfa37a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190221075227-b4e8571b14e0/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d h1:+R4KGOnez64A81RvjARKc4UT5/tI9ujCIVX+P5KiHuI=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527 h1:uYVVQ9WP/Ds2ROhcaGPeIdVq0RIXVLwsHlnvJ+cT1So=
+golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6 h1:jMFz6MfLP0/4fUyZle81rXUoxOBFi19VUFKVDOQfozc=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
-gopkg.in/logrusorgru/aurora.v1 v1.0.0-20181002194514-a7b3b318ed4e h1:uKdf1KQDFZDYqNzSDhxB5hFxj5Fq4e3/C/ejtRJxlY0=
-gopkg.in/logrusorgru/aurora.v1 v1.0.0-20181002194514-a7b3b318ed4e/go.mod h1:DGR33jeYG1jxERD2W4hGjuW94Pxf3mkUf/Ddhf5BskA=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/logrusorgru/aurora.v2 v2.0.0-20190417123914-21d75270181e h1:Wc0601/F/0TByNewL9UAKk18FfwumyYyT8pJMIHcolA=
+gopkg.in/logrusorgru/aurora.v2 v2.0.0-20190417123914-21d75270181e/go.mod h1:Wm+IEn1fgFp8E2paL93oFVrHZW4toMKARNE85fDY5w8=
+gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME=
+gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
+gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

kernel.go

@@ -69,7 +69,7 @@ func matchDebianHeadersPkg(container, mask string, generic bool) (
 func matchCentOSDevelPkg(container, mask string, generic bool) (
 	pkgs []string, err error) {
 
-	cmd := "yum search kernel-devel --show-duplicates | " +
+	cmd := "yum search kernel-devel --showduplicates | " +
 		"grep '^kernel-devel' | cut -d ' ' -f 1"
 	output, err := dockerRun(time.Minute, container, "/tmp", cmd)
 	if err != nil {
@@ -201,8 +201,24 @@ func generateBaseDockerImage(registry string, commands []config.DockerCommand,
 		// do not remove old kernels
 		d += "RUN sed -i 's;installonly_limit=;installonly_limit=100500;' /etc/yum.conf\n"
 		d += "RUN yum -y update\n"
+
+		if sk.DistroRelease == "8" {
+			// FIXME CentOS Vault repository list for 8 is empty
+			// at the time of this fix; check for it and use a
+			// workaround if it's still empty
+			d += `RUN grep enabled /etc/yum.repos.d/CentOS-Vault.repo` +
+				` || echo -e '[8.0.1905]\nbaseurl=http://vault.centos.org/8.0.1905/BaseOS/$basearch/os/'` +
+				` >> /etc/yum.repos.d/CentOS-Vault.repo` + "\n"
+		}
+
 		d += "RUN yum -y groupinstall 'Development Tools'\n"
+
+		if sk.DistroRelease < "8" {
 			d += "RUN yum -y install deltarpm\n"
+		} else {
+			d += "RUN yum -y install drpm grub2-tools-minimal " +
+				"elfutils-libelf-devel\n"
+		}
 	default:
 		err = fmt.Errorf("%s not yet supported", sk.DistroType.String())
 		return
@@ -273,6 +289,7 @@ func dockerImageAppend(sk config.KernelMask, pkgname string) (err error) {
 			"/boot/initramfs-%s.img %s\n", version, version)
 	default:
 		err = fmt.Errorf("%s not yet supported", sk.DistroType.String())
+		return
 	}
 
 	err = ioutil.WriteFile(imagePath+"/Dockerfile",

log.go

@@ -13,7 +13,7 @@ import (
 	"os"
 
 	"github.com/olekukonko/tablewriter"
-	"gopkg.in/logrusorgru/aurora.v1"
+	"gopkg.in/logrusorgru/aurora.v2"
 
 	"code.dumpstack.io/tools/out-of-tree/config"
 )
@@ -100,7 +100,12 @@ func logHandler(db *sql.DB, path, tag string, num int, rate bool) (err error) {
 }
 
 func logDumpHandler(db *sql.DB, id int) (err error) {
-	l, err := getLogByID(db, id)
+	var l logEntry
+	if id > 0 {
+		l, err = getLogByID(db, id)
+	} else {
+		l, err = getLastLog(db)
+	}
 	if err != nil {
 		return
 	}

main.go

@@ -84,7 +84,7 @@ func main() {
 	)
 
 	app.Author("Mikhail Klementev <root@dumpstack.io>")
-	app.Version("1.2.1")
+	app.Version("1.4.0")
 
 	pathFlag := app.Flag("path", "Path to work directory")
 	path := pathFlag.Default(".").ExistingDir()
@@ -126,6 +126,9 @@ func main() {
 	thresholdFlag := app.Flag("threshold", "Reliablity threshold for exit code")
 	threshold := thresholdFlag.Default("1.00").Float64()
 
+	disablePreloadFlag := app.Flag("disable-preload", "Disable module preload")
+	disablePreload = disablePreloadFlag.Bool()
+
 	pewCommand := app.Command("pew", "Build, run and test module/exploit")
 
 	pewMax := pewCommand.Flag("max", "Test no more than X kernels").
@@ -214,7 +217,7 @@ func main() {
 
 	logDumpCommand := logCommand.Command("dump",
 		"Show all info for log entry with ID")
-	logDumpID := logDumpCommand.Arg("ID", "").Required().Int()
+	logDumpID := logDumpCommand.Arg("ID", "").Default("-1").Int()
 
 	logJSONCommand := logCommand.Command("json", "Generate json statistics")
 	logJSONTag := logJSONCommand.Flag("tag", "Filter tag").Required().String()

pew.go

@@ -20,7 +20,7 @@ import (
 
 	"github.com/otiai10/copy"
 	"github.com/remeh/sizedwaitgroup"
-	"gopkg.in/logrusorgru/aurora.v1"
+	"gopkg.in/logrusorgru/aurora.v2"
 
 	"code.dumpstack.io/tools/out-of-tree/config"
 	"code.dumpstack.io/tools/out-of-tree/qemu"
@@ -151,7 +151,7 @@ func genOkFail(name string, ok bool) (aurv aurora.Value) {
 		aurv = aurora.BgGreen(aurora.Black(s))
 	} else {
 		s := " " + name + " FAILURE "
-		aurv = aurora.BgRed(aurora.Gray(aurora.Bold(s)))
+		aurv = aurora.BgRed(aurora.White(aurora.Bold(s)))
 	}
 	return
 }
@@ -325,6 +325,10 @@ func whatever(swg *sizedwaitgroup.SizedWaitGroup, ka config.Artifact,
 		q.Memory = ka.Qemu.Memory
 	}
 
+	if ka.Docker.Timeout.Duration != 0 {
+		dockerTimeout = ka.Docker.Timeout.Duration
+	}
+
 	q.SetKASLR(!ka.Mitigations.DisableKaslr)
 	q.SetSMEP(!ka.Mitigations.DisableSmep)
 	q.SetSMAP(!ka.Mitigations.DisableSmap)
@@ -391,6 +395,12 @@ func whatever(swg *sizedwaitgroup.SizedWaitGroup, ka config.Artifact,
 		return
 	}
 
+	err = preloadModules(q, ka, ki, dockerTimeout)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+
 	copyArtifactAndTest(q, ka, &result, remoteTest)
 }
 

preload.go

@@ -0,0 +1,172 @@
+// Copyright 2020 Mikhail Klementev. All rights reserved.
+// Use of this source code is governed by a AGPLv3 license
+// (or later) that can be found in the LICENSE file.
+
+package main
+
+import (
+	"crypto/sha1"
+	"encoding/hex"
+	"errors"
+	"io/ioutil"
+	"log"
+	"os"
+	"os/user"
+	"path/filepath"
+	"time"
+
+	"github.com/go-git/go-git/v5"
+
+	"code.dumpstack.io/tools/out-of-tree/config"
+	"code.dumpstack.io/tools/out-of-tree/qemu"
+)
+
+var disablePreload *bool
+
+func preloadModules(q *qemu.System, ka config.Artifact, ki config.KernelInfo,
+	dockerTimeout time.Duration) (err error) {
+
+	if *disablePreload {
+		return
+	}
+
+	for _, pm := range ka.Preload {
+		err = preload(q, ki, pm, dockerTimeout)
+		if err != nil {
+			return
+		}
+	}
+	return
+}
+
+func preload(q *qemu.System, ki config.KernelInfo, pm config.PreloadModule,
+	dockerTimeout time.Duration) (err error) {
+
+	var workPath, cache string
+	if pm.Path != "" {
+		log.Println("Use non-git path for preload module (no cache)")
+		workPath = pm.Path
+	} else if pm.Repo != "" {
+		workPath, cache, err = cloneOrPull(pm.Repo, ki)
+		if err != nil {
+			return
+		}
+	} else {
+		errors.New("No repo/path in preload entry")
+	}
+
+	err = buildAndInsmod(workPath, q, ki, dockerTimeout, cache)
+	if err != nil {
+		return
+	}
+
+	time.Sleep(pm.TimeoutAfterLoad.Duration)
+	return
+}
+
+func buildAndInsmod(workPath string, q *qemu.System, ki config.KernelInfo,
+	dockerTimeout time.Duration, cache string) (err error) {
+
+	tmp, err := ioutil.TempDir("", "out-of-tree_")
+	if err != nil {
+		return
+	}
+	defer os.RemoveAll(tmp)
+
+	var artifact string
+	if exists(cache) {
+		artifact = cache
+	} else {
+		artifact, err = buildPreload(workPath, tmp, ki, dockerTimeout)
+		if err != nil {
+			return
+		}
+		if cache != "" {
+			err = copyFile(artifact, cache)
+			if err != nil {
+				return
+			}
+		}
+	}
+
+	output, err := q.CopyAndInsmod(artifact)
+	if err != nil {
+		log.Println(output)
+		return
+	}
+	return
+}
+
+func buildPreload(workPath, tmp string, ki config.KernelInfo,
+	dockerTimeout time.Duration) (artifact string, err error) {
+
+	ka, err := config.ReadArtifactConfig(workPath + "/.out-of-tree.toml")
+	if err != nil {
+		return
+	}
+
+	ka.SourcePath = workPath
+
+	km := config.KernelMask{DistroType: ki.DistroType,
+		DistroRelease: ki.DistroRelease,
+		ReleaseMask:   ki.KernelRelease,
+	}
+	ka.SupportedKernels = []config.KernelMask{km}
+
+	if ka.Docker.Timeout.Duration != 0 {
+		dockerTimeout = ka.Docker.Timeout.Duration
+	}
+
+	artifact, _, err = build(tmp, ka, ki, dockerTimeout)
+	return
+}
+
+func cloneOrPull(repo string, ki config.KernelInfo) (workPath, cache string, err error) {
+	usr, err := user.Current()
+	if err != nil {
+		return
+	}
+	base := filepath.Join(usr.HomeDir, "/.out-of-tree/preload/")
+	workPath = filepath.Join(base, "/repos/", sha1sum(repo))
+
+	var r *git.Repository
+	if exists(workPath) {
+		r, err = git.PlainOpen(workPath)
+		if err != nil {
+			return
+		}
+
+		var w *git.Worktree
+		w, err = r.Worktree()
+		if err != nil {
+			return
+		}
+
+		err = w.Pull(&git.PullOptions{})
+		if err != nil && err != git.NoErrAlreadyUpToDate {
+			log.Println(repo, "pull error:", err)
+		}
+	} else {
+		r, err = git.PlainClone(workPath, false, &git.CloneOptions{URL: repo})
+		if err != nil {
+			return
+		}
+	}
+
+	ref, err := r.Head()
+	if err != nil {
+		return
+	}
+
+	cachedir := filepath.Join(base, "/cache/")
+	os.MkdirAll(cachedir, 0700)
+
+	filename := sha1sum(repo + ki.KernelPath + ref.Hash().String())
+	cache = filepath.Join(cachedir, filename)
+	return
+}
+
+func sha1sum(data string) string {
+	h := sha1.Sum([]byte(data))
+	return hex.EncodeToString(h[:])
+}

qemu/qemu-kernel_test.go

@@ -116,6 +116,7 @@ func startTestQemu(t *testing.T, timeout time.Duration) (q *System, err error) {
 		return
 	}
 
+	time.Sleep(time.Second)
 	return
 }
 
@@ -324,6 +325,8 @@ func TestSystemDebug(t *testing.T) {
 		return
 	}
 
+	time.Sleep(time.Second)
+
 	port := 45256
 
 	q.Debug(fmt.Sprintf("tcp::%d", port))

qemu/test.config.go

@@ -4,7 +4,7 @@
 
 package qemu
 
-const testConfigVmlinuz = "../tools/qemu-debian-img/ubuntu1804.vmlinuz"
-const testConfigInitrd = "../tools/qemu-debian-img/ubuntu1804.initrd"
-const testConfigRootfs = "../tools/qemu-debian-img/ubuntu1804.img"
-const testConfigSampleKo = "../tools/qemu-debian-img/ubuntu1804.ko"
+const testConfigVmlinuz = "../tools/qemu-debian-img/ubuntu2004.vmlinuz"
+const testConfigInitrd = "../tools/qemu-debian-img/ubuntu2004.initrd"
+const testConfigRootfs = "../tools/qemu-debian-img/ubuntu2004.img"
+const testConfigSampleKo = "../tools/qemu-debian-img/ubuntu2004.ko"

tools/qemu-centos-img/8/Dockerfile

@@ -0,0 +1,56 @@
+# Copyright 2020 Mikhail Klementev. All rights reserved.
+# Use of this source code is governed by a AGPLv3 license
+# (or later) that can be found in the LICENSE file.
+#
+# Usage:
+#
+#     $ sudo docker build -t gen-centos8-image .
+#     $ sudo docker run --privileged -v $(pwd):/shared -t gen-centos8-image
+#     $ tar -Szcf out_of_tree_centos_8.img.tar.gz out_of_tree_centos_8.img
+#
+# out_of_tree_centos_8.img will be created in current directory.
+# You can change $(pwd) to different directory to use different destination
+# for image.
+#
+FROM centos:8
+
+RUN yum -y update
+RUN yum -y groupinstall "Development Tools"
+RUN yum -y install qemu-img e2fsprogs
+
+ENV TMPDIR=/tmp/centos
+
+RUN yum --installroot=$TMPDIR \
+        --releasever=8 \
+        --disablerepo='*' \
+        --enablerepo=BaseOS \
+        -y groupinstall Base
+RUN yum --installroot=$TMPDIR \
+        --releasever=8 \
+        --disablerepo='*' \
+        --enablerepo=BaseOS \
+        -y install openssh-server openssh-clients
+
+RUN chroot $TMPDIR /bin/sh -c 'useradd -m user'
+RUN sed -i 's/root:\*:/root::/' $TMPDIR/etc/shadow
+RUN sed -i 's/user:!!:/user::/' $TMPDIR/etc/shadow
+RUN sed -i '/PermitEmptyPasswords/d' $TMPDIR/etc/ssh/sshd_config
+RUN echo PermitEmptyPasswords yes >> $TMPDIR/etc/ssh/sshd_config
+RUN sed -i '/PermitRootLogin/d' $TMPDIR/etc/ssh/sshd_config
+RUN echo PermitRootLogin yes >> $TMPDIR/etc/ssh/sshd_config
+
+# network workaround
+RUN chmod +x $TMPDIR/etc/rc.local
+RUN echo 'dhclient' >> $TMPDIR/etc/rc.local
+
+ENV IMAGEDIR=/tmp/image
+ENV IMAGE=/shared/out_of_tree_centos_8.img
+
+RUN mkdir $IMAGEDIR
+
+# Must be executed with --privileged because of /dev/loop
+CMD qemu-img create $IMAGE 2G && \
+	mkfs.ext4 -F $IMAGE && \
+	mount -o loop $IMAGE $IMAGEDIR && \
+	cp -a $TMPDIR/* $IMAGEDIR/ && \
+	umount $IMAGEDIR

tools/qemu-centos-img/8/generate.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+cd "$(dirname "$0")"
+
+sudo docker build -t gen-centos8-image .
+sudo docker run --privileged -v $(pwd):/shared -t gen-centos8-image
+tar -Szcf out_of_tree_centos_8.img.tar.gz out_of_tree_centos_8.img

tools/qemu-debian-img/Dockerfile

@@ -4,24 +4,24 @@
 #
 # Usage:
 #
-#     $ docker build -t gen-ubuntu1804-image .
-#     $ docker run --privileged -v $(pwd):/shared -t gen-ubuntu1804-image
+#     $ docker build -t gen-ubuntu2004-image .
+#     $ docker run --privileged -v $(pwd):/shared -t gen-ubuntu2004-image
 #
-# ubuntu1804.img will be created in current directory. You can change $(pwd) to
+# ubuntu2004.img will be created in current directory. You can change $(pwd) to
 # different directory to use different destination for image.
 #
-FROM ubuntu:18.04
+FROM ubuntu:20.04
 
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt update
-RUN apt install -y debootstrap qemu
+RUN apt install -y debootstrap qemu-utils
 RUN apt install -y linux-image-generic
 
 ENV TMPDIR=/tmp/ubuntu
 ENV IMAGEDIR=/tmp/image
-ENV IMAGE=/shared/ubuntu1804.img
+ENV IMAGE=/shared/ubuntu2004.img
 ENV REPOSITORY=http://archive.ubuntu.com/ubuntu
-ENV RELEASE=bionic
+ENV RELEASE=focal
 
 RUN mkdir $IMAGEDIR
 

tools/qemu-debian-img/bootstrap.sh

@@ -1,9 +1,9 @@
 #!/bin/sh -eux
 cd $(dirname $(realpath $0))
 
-docker build -t gen-ubuntu1804-image .
-docker run --privileged -v $(pwd):/shared -t gen-ubuntu1804-image
-RUN="docker run -v $(pwd):/shared -t gen-ubuntu1804-image"
-$RUN sh -c 'chmod 644 /vmlinuz && cp /vmlinuz /shared/ubuntu1804.vmlinuz'
-$RUN sh -c 'cp /initrd.img /shared/ubuntu1804.initrd'
-$RUN sh -c 'cp $(find /lib/modules -name test_static_key_base.ko) /shared/ubuntu1804.ko'
+docker build -t gen-ubuntu2004-image .
+docker run --privileged -v $(pwd):/shared -t gen-ubuntu2004-image
+RUN="docker run -v $(pwd):/shared -t gen-ubuntu2004-image"
+$RUN sh -c 'chmod 644 /boot/vmlinuz && cp /boot/vmlinuz /shared/ubuntu2004.vmlinuz'
+$RUN sh -c 'cp /boot/initrd.img /shared/ubuntu2004.initrd'
+$RUN sh -c 'cp $(find /lib/modules -name test_bpf.ko) /shared/ubuntu2004.ko'