1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
package system
import (
"fmt"
"slices"
"git.ophivana.moe/cat/fortify/acl"
"git.ophivana.moe/cat/fortify/internal/fmsg"
"git.ophivana.moe/cat/fortify/internal/verbose"
)
// UpdatePerm appends an ephemeral acl update Op.
func (sys *I) UpdatePerm(path string, perms ...acl.Perm) {
sys.UpdatePermType(Process, path, perms...)
}
// UpdatePermType appends an acl update Op.
func (sys *I) UpdatePermType(et Enablement, path string, perms ...acl.Perm) {
sys.lock.Lock()
defer sys.lock.Unlock()
sys.ops = append(sys.ops, &ACL{et, path, perms})
}
type ACL struct {
et Enablement
path string
perms []acl.Perm
}
func (a *ACL) Type() Enablement {
return a.et
}
func (a *ACL) apply(sys *I) error {
verbose.Println("applying ACL", a, "uid:", sys.uid, "type:", TypeString(a.et), "path:", a.path)
return fmsg.WrapErrorSuffix(acl.UpdatePerm(a.path, sys.uid, a.perms...),
fmt.Sprintf("cannot apply ACL entry to %q:", a.path))
}
func (a *ACL) revert(sys *I, ec *Criteria) error {
if ec.hasType(a) {
verbose.Println("stripping ACL", a, "uid:", sys.uid, "type:", TypeString(a.et), "path:", a.path)
return fmsg.WrapErrorSuffix(acl.UpdatePerm(a.path, sys.uid),
fmt.Sprintf("cannot strip ACL entry from %q:", a.path))
} else {
verbose.Println("skipping ACL", a, "uid:", sys.uid, "tag:", TypeString(a.et), "path:", a.path)
return nil
}
}
func (a *ACL) Is(o Op) bool {
a0, ok := o.(*ACL)
return ok && a0 != nil &&
a.et == a0.et &&
a.path == a0.path &&
slices.Equal(a.perms, a0.perms)
}
func (a *ACL) Path() string {
return a.path
}
func (a *ACL) String() string {
var s = []byte("---")
for _, p := range a.perms {
switch p {
case acl.Read:
s[0] = 'r'
case acl.Write:
s[1] = 'w'
case acl.Execute:
s[2] = 'x'
}
}
return string(s)
}
|
