mirror of
https://github.com/roddhjav/apparmor.d.git
synced 2024-12-29 08:27:29 +01:00
59ac54e2fc
- ABI4 by default, fallback to abi 3. - aa-prebuild cli that can be used by other project shipping profiles. - --file option to cli to only build one dev profile. - add abi version filter to only & exclude directives.
76 lines
2 KiB
Go
76 lines
2 KiB
Go
// apparmor.d - Full set of apparmor profiles
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// Copyright (C) 2021-2024 Alexandre Pujol <alexandre@pujol.io>
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// SPDX-License-Identifier: GPL-2.0-only
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package directive
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import (
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"fmt"
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"regexp"
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"slices"
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"strings"
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"github.com/roddhjav/apparmor.d/pkg/prebuild"
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"github.com/roddhjav/apparmor.d/pkg/util"
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)
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var (
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regRules = regexp.MustCompile(`(?m)^profile.*{$((.|\n)*)}`)
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regEndOfRules = regexp.MustCompile(`(?m)([\t ]*include if exists <.*>\n)+}`)
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regCleanStakedRules = util.ToRegexRepl([]string{
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`(?m)^.*include <abstractions/base>.*$`, ``, // Remove mandatory base abstraction
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`(?m)^.*@{exec_path}.*$`, ``, // Remove entry point
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`(?m)^(?:[\t ]*(?:\r?\n))+`, ``, // Remove empty lines
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})
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)
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type Stack struct {
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prebuild.Base
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}
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func init() {
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RegisterDirective(&Stack{
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Base: prebuild.Base{
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Keyword: "stack",
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Msg: "Stack directive applied",
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Help: []string{"[X] profiles..."},
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},
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})
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}
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func (s Stack) Apply(opt *Option, profile string) (string, error) {
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if len(opt.ArgList) == 0 {
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return "", fmt.Errorf("No profile to stack")
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}
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t := opt.ArgList[0]
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if t != "X" {
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regCleanStakedRules = slices.Insert(regCleanStakedRules, 0,
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util.ToRegexRepl([]string{
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`(?m)^.*(|P|p)(|U|u)(|i)x,.*$`, ``, // Remove X transition rules
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})...,
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)
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} else {
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delete(opt.ArgMap, t)
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}
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res := ""
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for name := range opt.ArgMap {
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stackedProfile := util.MustReadFile(prebuild.RootApparmord.Join(name))
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m := regRules.FindStringSubmatch(stackedProfile)
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if len(m) < 2 {
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return "", fmt.Errorf("No profile found in %s", name)
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}
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stackedRules := m[1]
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stackedRules = regCleanStakedRules.Replace(stackedRules)
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res += " # Stacked profile: " + name + "\n" + stackedRules + "\n"
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}
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// Insert the stacked profile at the end of the current profile, remove the stack directive
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m := regEndOfRules.FindStringSubmatch(profile)
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if len(m) <= 1 {
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return "", fmt.Errorf("No end of rules found in %s", opt.File)
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}
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profile = strings.Replace(profile, m[0], res+m[0], -1)
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profile = strings.Replace(profile, opt.Raw, "", -1)
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return profile, nil
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}
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