mirror of
https://github.com/roddhjav/apparmor.d.git
synced 2024-11-14 23:43:56 +01:00
114 lines
2.4 KiB
Go
114 lines
2.4 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 aa
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import (
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"strings"
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)
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type RuleBase struct {
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IsLineRule bool
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Comment string
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NoNewPrivs bool
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FileInherit bool
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Prefix string
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Padding string
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Suffix string
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Optional bool
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}
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func newBase(rule rule) RuleBase {
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comment := ""
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fileInherit, noNewPrivs, optional := false, false, false
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if len(rule) > 0 {
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if len(rule.Get(0)) > 0 && rule.Get(0)[0] == '#' {
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// Line rule is a comment
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rule = rule[1:]
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comment = rule.GetString()
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} else {
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// Comma rule, with comment at the end
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comment = rule[len(rule)-1].comment
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}
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}
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switch {
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case strings.Contains(comment, "file_inherit"):
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fileInherit = true
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comment = strings.Replace(comment, "file_inherit ", "", 1)
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case strings.HasPrefix(comment, "no new privs"):
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noNewPrivs = true
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comment = strings.Replace(comment, "no new privs ", "", 1)
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case strings.Contains(comment, "optional:"):
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optional = true
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comment = strings.Replace(comment, "optional: ", "", 1)
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}
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return RuleBase{
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Comment: comment,
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NoNewPrivs: noNewPrivs,
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FileInherit: fileInherit,
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Optional: optional,
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}
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}
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func newBaseFromLog(log map[string]string) RuleBase {
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comment := ""
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fileInherit, noNewPrivs, optional := false, false, false
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if log["operation"] == "file_inherit" {
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fileInherit = true
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}
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if log["error"] == "-1" {
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if strings.Contains(log["info"], "optional:") {
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optional = true
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comment = strings.Replace(log["info"], "optional: ", "", 1)
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} else {
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noNewPrivs = true
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}
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}
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if log["info"] != "" {
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comment += " " + log["info"]
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}
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return RuleBase{
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IsLineRule: false,
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Comment: comment,
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NoNewPrivs: noNewPrivs,
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FileInherit: fileInherit,
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Optional: optional,
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}
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}
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func (r RuleBase) Merge(other Rule) bool {
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return false
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}
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func (r RuleBase) merge(other RuleBase) bool {
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r.Comment += " " + other.Comment
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return true
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}
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type Qualifier struct {
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Audit bool
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AccessType string
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}
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func newQualifierFromLog(log map[string]string) Qualifier {
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audit := false
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if log["apparmor"] == "AUDIT" {
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audit = true
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}
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return Qualifier{Audit: audit}
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}
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func (r Qualifier) Compare(o Qualifier) int {
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if r := compare(r.Audit, o.Audit); r != 0 {
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return r
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}
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return compare(r.AccessType, o.AccessType)
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}
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func (r Qualifier) Equal(o Qualifier) bool {
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return r.Audit == o.Audit && r.AccessType == o.AccessType
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}
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