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out-of-tree/main.go

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// Copyright 2018 Mikhail Klementev. All rights reserved.
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// Use of this source code is governed by a AGPLv3 license
// (or later) that can be found in the LICENSE file.
package main
import (
"log"
"os"
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"os/exec"
"os/user"
kingpin "gopkg.in/alecthomas/kingpin.v2"
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"github.com/jollheef/out-of-tree/config"
)
func main() {
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app := kingpin.New(
"out-of-tree",
"kernel {module, exploit} development tool",
)
app.Author("Mikhail Klementev <jollheef@riseup.net>")
app.Version("0.1.0")
pathFlag := app.Flag("path", "Path to work directory")
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path := pathFlag.Default(".").ExistingDir()
usr, err := user.Current()
if err != nil {
return
}
defaultKcfgPath := usr.HomeDir + "/.out-of-tree/kernels.toml"
kcfgPathFlag := app.Flag("kernels", "Path to main kernels config")
kcfgPath := kcfgPathFlag.Default(defaultKcfgPath).ExistingFile()
defaultUserKcfgPath := usr.HomeDir + "/.out-of-tree/kernels.user.toml"
userKcfgPathFlag := app.Flag("user-kernels", "User kernels config")
userKcfgPathEnv := userKcfgPathFlag.Envar("OUT_OF_TREE_KCFG")
userKcfgPath := userKcfgPathEnv.Default(defaultUserKcfgPath).String()
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qemuTimeoutFlag := app.Flag("qemu-timeout", "Timeout for qemu")
qemuTimeout := qemuTimeoutFlag.Default("1m").Duration()
dockerTimeoutFlag := app.Flag("docker-timeout", "Timeout for docker")
dockerTimeout := dockerTimeoutFlag.Default("1m").Duration()
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pewCommand := app.Command("pew", "Build, run and test module/exploit")
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pewKernelFlag := pewCommand.Flag("kernel", "Override kernel regex")
pewKernel := pewKernelFlag.String()
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pewGuessFlag := pewCommand.Flag("guess", "Try all defined kernels")
pewGuess := pewGuessFlag.Bool()
pewBinaryFlag := pewCommand.Flag("binary", "Use binary, do not build")
pewBinary := pewBinaryFlag.String()
pewTestFlag := pewCommand.Flag("test", "Override path test")
pewTest := pewTestFlag.String()
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kernelCommand := app.Command("kernel", "Manipulate kernels")
kernelListCommand := kernelCommand.Command("list", "List kernels")
kernelAutogenCommand := kernelCommand.Command("autogen",
"Generate kernels based on a current config")
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kernelDockerRegenCommand := kernelCommand.Command("docker-regen",
"Regenerate kernels config from out_of_tree_* docker images")
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genCommand := app.Command("gen", "Generate .out-of-tree.toml skeleton")
genModuleCommand := genCommand.Command("module",
"Generate .out-of-tree.toml skeleton for kernel module")
genExploitCommand := genCommand.Command("exploit",
"Generate .out-of-tree.toml skeleton for kernel exploit")
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debugCommand := app.Command("debug", "Kernel debug environment")
debugCommandFlag := debugCommand.Flag("kernel", "Regex (first match)")
debugKernel := debugCommandFlag.Required().String()
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debugFlagGDB := debugCommand.Flag("gdb", "Set gdb listen address")
debugGDB := debugFlagGDB.Default("tcp::1234").String()
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bootstrapCommand := app.Command("bootstrap",
"Create directories && download images")
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// Check for required commands
for _, cmd := range []string{"timeout", "docker", "qemu"} {
_, err := exec.Command("which", cmd).CombinedOutput()
if err != nil {
log.Fatalln("Command not found:", cmd)
}
}
kingpin.MustParse(app.Parse(os.Args[1:]))
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kcfg, err := config.ReadKernelConfig(*kcfgPath)
if err != nil {
log.Fatalln(err)
}
if exists(*userKcfgPath) {
userKcfg, err := config.ReadKernelConfig(*userKcfgPath)
if err != nil {
log.Fatalln(err)
}
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for _, nk := range userKcfg.Kernels {
if !hasKernel(nk, kcfg) {
kcfg.Kernels = append(kcfg.Kernels, nk)
}
}
}
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switch kingpin.MustParse(app.Parse(os.Args[1:])) {
case pewCommand.FullCommand():
err = pewHandler(kcfg, *path, *pewKernel, *pewBinary,
*pewTest, *pewGuess, *qemuTimeout, *dockerTimeout)
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case kernelListCommand.FullCommand():
err = kernelListHandler(kcfg)
case kernelAutogenCommand.FullCommand():
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err = kernelAutogenHandler(*path)
case kernelDockerRegenCommand.FullCommand():
err = kernelDockerRegenHandler()
case genModuleCommand.FullCommand():
err = genConfig(config.KernelModule)
case genExploitCommand.FullCommand():
err = genConfig(config.KernelExploit)
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case debugCommand.FullCommand():
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err = debugHandler(kcfg, *path, *debugKernel, *debugGDB,
*dockerTimeout)
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case bootstrapCommand.FullCommand():
err = bootstrapHandler()
}
if err != nil {
log.Fatalln(err)
}
}