mirror of
https://github.com/roddhjav/apparmor.d.git
synced 2024-11-15 07:54:17 +01:00
109 lines
2.1 KiB
Go
109 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 PTRACE Kind = "ptrace"
|
|
|
|
func init() {
|
|
requirements[PTRACE] = requirement{
|
|
"access": []string{
|
|
"r", "w", "rw", "read", "readby", "trace", "tracedby",
|
|
},
|
|
}
|
|
}
|
|
|
|
type Ptrace struct {
|
|
Base
|
|
Qualifier
|
|
Access []string
|
|
Peer string
|
|
}
|
|
|
|
func newPtrace(q Qualifier, rule rule) (Rule, error) {
|
|
accesses, err := toAccess(PTRACE, rule.GetString())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &Ptrace{
|
|
Base: newBase(rule),
|
|
Qualifier: q,
|
|
Access: accesses,
|
|
Peer: rule.GetValuesAsString("peer"),
|
|
}, nil
|
|
}
|
|
|
|
func newPtraceFromLog(log map[string]string) Rule {
|
|
return &Ptrace{
|
|
Base: newBaseFromLog(log),
|
|
Qualifier: newQualifierFromLog(log),
|
|
Access: Must(toAccess(PTRACE, log["requested_mask"])),
|
|
Peer: log["peer"],
|
|
}
|
|
}
|
|
|
|
func (r *Ptrace) Kind() Kind {
|
|
return PTRACE
|
|
}
|
|
|
|
func (r *Ptrace) Constraint() Constraint {
|
|
return BlockRule
|
|
}
|
|
|
|
func (r *Ptrace) String() string {
|
|
return renderTemplate(r.Kind(), r)
|
|
}
|
|
|
|
func (r *Ptrace) Validate() error {
|
|
if err := validateValues(r.Kind(), "access", r.Access); err != nil {
|
|
return fmt.Errorf("%s: %w", r, err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (r *Ptrace) Compare(other Rule) int {
|
|
o, _ := other.(*Ptrace)
|
|
if res := compare(r.Access, o.Access); res != 0 {
|
|
return res
|
|
}
|
|
if res := compare(r.Peer, o.Peer); res != 0 {
|
|
return res
|
|
}
|
|
return r.Qualifier.Compare(o.Qualifier)
|
|
}
|
|
|
|
func (r *Ptrace) Merge(other Rule) bool {
|
|
o, _ := other.(*Ptrace)
|
|
|
|
if !r.Qualifier.Equal(o.Qualifier) {
|
|
return false
|
|
}
|
|
if r.Peer == o.Peer {
|
|
r.Access = merge(r.Kind(), "access", r.Access, o.Access)
|
|
b := &r.Base
|
|
return b.merge(o.Base)
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (r *Ptrace) Lengths() []int {
|
|
return []int{
|
|
r.Qualifier.getLenAudit(),
|
|
r.Qualifier.getLenAccess(),
|
|
length("", r.Access),
|
|
length("peer=", r.Peer),
|
|
}
|
|
}
|
|
|
|
func (r *Ptrace) setPaddings(max []int) {
|
|
r.Paddings = append(r.Qualifier.setPaddings(max[:2]), setPaddings(
|
|
max[2:], []string{"", "peer="},
|
|
[]any{r.Access, r.Peer})...,
|
|
)
|
|
}
|