apparmor.d/pkg/aa/dbus.go
Alexandre Pujol 4cbacc186c
feat(aa): rule interface: replace less & equal by the compare method.
- set a new alphabet order to sort AARE based string.
- unify compare function for all rules
- handle some special sort order, eg: base include
2024-06-19 18:34:58 +01:00

105 lines
2.1 KiB
Go

// apparmor.d - Full set of apparmor profiles
// Copyright (C) 2021-2024 Alexandre Pujol <alexandre@pujol.io>
// SPDX-License-Identifier: GPL-2.0-only
package aa
import (
"fmt"
)
const DBUS Kind = "dbus"
func init() {
requirements[DBUS] = requirement{
"access": []string{
"send", "receive", "bind", "eavesdrop", "r", "read",
"w", "write", "rw",
},
"bus": []string{"system", "session", "accessibility"},
}
}
type Dbus struct {
RuleBase
Qualifier
Access []string
Bus string
Name string
Path string
Interface string
Member string
PeerName string
PeerLabel string
}
func newDbusFromLog(log map[string]string) Rule {
name := ""
peerName := ""
if log["mask"] == "bind" {
name = log["name"]
} else {
peerName = log["name"]
}
return &Dbus{
RuleBase: newRuleFromLog(log),
Qualifier: newQualifierFromLog(log),
Access: []string{log["mask"]},
Bus: log["bus"],
Name: name,
Path: log["path"],
Interface: log["interface"],
Member: log["member"],
PeerName: peerName,
PeerLabel: log["peer_label"],
}
}
func (r *Dbus) Validate() error {
if err := validateValues(r.Kind(), "access", r.Access); err != nil {
return fmt.Errorf("%s: %w", r, err)
}
return validateValues(r.Kind(), "bus", []string{r.Bus})
}
func (r *Dbus) Compare(other Rule) int {
o, _ := other.(*Dbus)
if res := compare(r.Access, o.Access); res != 0 {
return res
}
if res := compare(r.Bus, o.Bus); res != 0 {
return res
}
if res := compare(r.Name, o.Name); res != 0 {
return res
}
if res := compare(r.Path, o.Path); res != 0 {
return res
}
if res := compare(r.Interface, o.Interface); res != 0 {
return res
}
if res := compare(r.Member, o.Member); res != 0 {
return res
}
if res := compare(r.PeerName, o.PeerName); res != 0 {
return res
}
if res := compare(r.PeerLabel, o.PeerLabel); res != 0 {
return res
}
return r.Qualifier.Compare(o.Qualifier)
}
func (r *Dbus) String() string {
return renderTemplate(r.Kind(), r)
}
func (r *Dbus) Constraint() constraint {
return blockKind
}
func (r *Dbus) Kind() Kind {
return DBUS
}