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system/dispatcher: wrap syscall helper functions
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This allows tests to stub all kernel behaviour, like in the container package.

Signed-off-by: Ophestra <cat@gensokyo.uk>
This commit is contained in:
Ophestra
2025-09-04 04:15:25 +09:00
parent 024d2ff782
commit ddfb865e2d
5 changed files with 427 additions and 88 deletions
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254
system/acl_test.go
View File

@@ -1,91 +1,183 @@
package system
import (
"os"
"syscall"
"testing"
"hakurei.app/container"
"hakurei.app/container/stub"
"hakurei.app/system/acl"
)
func TestUpdatePerm(t *testing.T) {
testCases := []struct {
path string
perms []acl.Perm
}{
{"/run/user/1971/hakurei", []acl.Perm{acl.Execute}},
{"/tmp/hakurei.1971/tmpdir/150", []acl.Perm{acl.Read, acl.Write, acl.Execute}},
}
func TestACLUpdateOp(t *testing.T) {
checkOpBehaviour(t, []opBehaviourTestCase{
{"apply aclUpdate", 0xdeadbeef, 0xff,
&ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"applying ACL", &ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}}}, nil, nil),
call("aclUpdate", stub.ExpectArgs{"/proc/nonexistent", 0xdeadbeef, []acl.Perm{acl.Read, acl.Write, acl.Execute}}, nil, stub.UniqueError(1)),
}, &OpError{Op: "acl", Err: stub.UniqueError(1)}, nil, nil},
for _, tc := range testCases {
t.Run(tc.path+permSubTestSuffix(tc.perms), func(t *testing.T) {
sys := New(t.Context(), 150)
sys.UpdatePerm(tc.path, tc.perms...)
(&tcOp{Process, tc.path}).test(t, sys.ops, []Op{&ACLUpdateOp{Process, tc.path, tc.perms}}, "UpdatePerm")
})
}
}
func TestUpdatePermType(t *testing.T) {
testCases := []struct {
perms []acl.Perm
tcOp
}{
{[]acl.Perm{acl.Execute}, tcOp{User, "/tmp/hakurei.1971/tmpdir"}},
{[]acl.Perm{acl.Read, acl.Write, acl.Execute}, tcOp{User, "/tmp/hakurei.1971/tmpdir/150"}},
{[]acl.Perm{acl.Execute}, tcOp{Process, "/run/user/1971/hakurei/fcb8a12f7c482d183ade8288c3de78b5"}},
{[]acl.Perm{acl.Read}, tcOp{Process, "/tmp/hakurei.1971/fcb8a12f7c482d183ade8288c3de78b5/passwd"}},
{[]acl.Perm{acl.Read}, tcOp{Process, "/tmp/hakurei.1971/fcb8a12f7c482d183ade8288c3de78b5/group"}},
{[]acl.Perm{acl.Read, acl.Write, acl.Execute}, tcOp{EWayland, "/run/user/1971/wayland-0"}},
}
for _, tc := range testCases {
t.Run(tc.path+"_"+TypeString(tc.et)+permSubTestSuffix(tc.perms), func(t *testing.T) {
sys := New(t.Context(), 150)
sys.UpdatePermType(tc.et, tc.path, tc.perms...)
tc.test(t, sys.ops, []Op{&ACLUpdateOp{tc.et, tc.path, tc.perms}}, "UpdatePermType")
})
}
}
func TestACLString(t *testing.T) {
testCases := []struct {
want string
et Enablement
perms []acl.Perm
}{
{`--- type: process path: "/proc/nonexistent"`, Process, []acl.Perm{}},
{`r-- type: user path: "/proc/nonexistent"`, User, []acl.Perm{acl.Read}},
{`-w- type: wayland path: "/proc/nonexistent"`, EWayland, []acl.Perm{acl.Write}},
{`--x type: x11 path: "/proc/nonexistent"`, EX11, []acl.Perm{acl.Execute}},
{`rw- type: dbus path: "/proc/nonexistent"`, EDBus, []acl.Perm{acl.Read, acl.Write}},
{`r-x type: pulseaudio path: "/proc/nonexistent"`, EPulse, []acl.Perm{acl.Read, acl.Execute}},
{`rwx type: user path: "/proc/nonexistent"`, User, []acl.Perm{acl.Read, acl.Write, acl.Execute}},
{`rwx type: process path: "/proc/nonexistent"`, Process, []acl.Perm{acl.Read, acl.Write, acl.Write, acl.Execute}},
}
for _, tc := range testCases {
t.Run(tc.want, func(t *testing.T) {
a := &ACLUpdateOp{et: tc.et, perms: tc.perms, path: container.Nonexistent}
if got := a.String(); got != tc.want {
t.Errorf("String() = %v, want %v",
got, tc.want)
}
})
}
}
func permSubTestSuffix(perms []acl.Perm) (suffix string) {
for _, perm := range perms {
switch perm {
case acl.Read:
suffix += "_read"
case acl.Write:
suffix += "_write"
case acl.Execute:
suffix += "_execute"
default:
panic("unreachable")
}
}
return
{"revert aclUpdate", 0xdeadbeef, 0xff,
&ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"applying ACL", &ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}}}, nil, nil),
call("aclUpdate", stub.ExpectArgs{"/proc/nonexistent", 0xdeadbeef, []acl.Perm{acl.Read, acl.Write, acl.Execute}}, nil, nil),
}, nil, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"stripping ACL", &ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}}}, nil, nil),
call("aclUpdate", stub.ExpectArgs{"/proc/nonexistent", 0xdeadbeef, ([]acl.Perm)(nil)}, nil, stub.UniqueError(0)),
}, &OpError{Op: "acl", Err: stub.UniqueError(0), Revert: true}},
{"success revert skip", 0xdeadbeef, Process,
&ACLUpdateOp{User, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"applying ACL", &ACLUpdateOp{User, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}}}, nil, nil),
call("aclUpdate", stub.ExpectArgs{"/proc/nonexistent", 0xdeadbeef, []acl.Perm{acl.Read, acl.Write, acl.Execute}}, nil, nil),
}, nil, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"skipping ACL", &ACLUpdateOp{User, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}}}, nil, nil),
}, nil},
{"success revert aclUpdate ENOENT", 0xdeadbeef, 0xff,
&ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"applying ACL", &ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}}}, nil, nil),
call("aclUpdate", stub.ExpectArgs{"/proc/nonexistent", 0xdeadbeef, []acl.Perm{acl.Read, acl.Write, acl.Execute}}, nil, nil),
}, nil, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"stripping ACL", &ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}}}, nil, nil),
call("aclUpdate", stub.ExpectArgs{"/proc/nonexistent", 0xdeadbeef, ([]acl.Perm)(nil)}, nil, &os.PathError{Op: "acl_get_file", Path: "/proc/nonexistent", Err: syscall.ENOENT}),
call("verbosef", stub.ExpectArgs{"target of ACL %s no longer exists", []any{&ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}}}, nil, nil),
}, nil},
{"success", 0xdeadbeef, 0xff,
&ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"applying ACL", &ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}}}, nil, nil),
call("aclUpdate", stub.ExpectArgs{"/proc/nonexistent", 0xdeadbeef, []acl.Perm{acl.Read, acl.Write, acl.Execute}}, nil, nil),
}, nil, []stub.Call{
call("verbose", stub.ExpectArgs{[]any{"stripping ACL", &ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{acl.Read, acl.Write, acl.Execute}}}}, nil, nil),
call("aclUpdate", stub.ExpectArgs{"/proc/nonexistent", 0xdeadbeef, ([]acl.Perm)(nil)}, nil, nil),
}, nil},
})
checkOpsBuilder(t, "UpdatePerm", []opsBuilderTestCase{
{"simple",
0xdeadbeef,
func(sys *I) {
sys.
UpdatePerm("/run/user/1971/hakurei", acl.Execute).
UpdatePerm("/tmp/hakurei.0/tmpdir/150", acl.Read, acl.Write, acl.Execute)
}, []Op{
&ACLUpdateOp{Process, "/run/user/1971/hakurei", []acl.Perm{acl.Execute}},
&ACLUpdateOp{Process, "/tmp/hakurei.0/tmpdir/150", []acl.Perm{acl.Read, acl.Write, acl.Execute}},
}, stub.Expect{}},
})
checkOpsBuilder(t, "UpdatePermType", []opsBuilderTestCase{
{"tmpdirp", 0xdeadbeef, func(sys *I) {
sys.UpdatePermType(User, "/tmp/hakurei.0/tmpdir", acl.Execute)
}, []Op{
&ACLUpdateOp{User, "/tmp/hakurei.0/tmpdir", []acl.Perm{acl.Execute}},
}, stub.Expect{}},
{"tmpdir", 0xdeadbeef, func(sys *I) {
sys.UpdatePermType(User, "/tmp/hakurei.0/tmpdir/150", acl.Read, acl.Write, acl.Execute)
}, []Op{
&ACLUpdateOp{User, "/tmp/hakurei.0/tmpdir/150", []acl.Perm{acl.Read, acl.Write, acl.Execute}},
}, stub.Expect{}},
{"share", 0xdeadbeef, func(sys *I) {
sys.UpdatePermType(Process, "/run/user/1971/hakurei/fcb8a12f7c482d183ade8288c3de78b5", acl.Execute)
}, []Op{
&ACLUpdateOp{Process, "/run/user/1971/hakurei/fcb8a12f7c482d183ade8288c3de78b5", []acl.Perm{acl.Execute}},
}, stub.Expect{}},
{"passwd", 0xdeadbeef, func(sys *I) {
sys.
UpdatePermType(Process, "/tmp/hakurei.0/fcb8a12f7c482d183ade8288c3de78b5/passwd", acl.Read).
UpdatePermType(Process, "/tmp/hakurei.0/fcb8a12f7c482d183ade8288c3de78b5/group", acl.Read)
}, []Op{
&ACLUpdateOp{Process, "/tmp/hakurei.0/fcb8a12f7c482d183ade8288c3de78b5/passwd", []acl.Perm{acl.Read}},
&ACLUpdateOp{Process, "/tmp/hakurei.0/fcb8a12f7c482d183ade8288c3de78b5/group", []acl.Perm{acl.Read}},
}, stub.Expect{}},
{"wayland", 0xdeadbeef, func(sys *I) {
sys.UpdatePermType(EWayland, "/run/user/1971/wayland-0", acl.Read, acl.Write, acl.Execute)
}, []Op{
&ACLUpdateOp{EWayland, "/run/user/1971/wayland-0", []acl.Perm{acl.Read, acl.Write, acl.Execute}},
}, stub.Expect{}},
})
checkOpIs(t, []opIsTestCase{
{"nil", (*ACLUpdateOp)(nil), (*ACLUpdateOp)(nil), false},
{"zero", new(ACLUpdateOp), new(ACLUpdateOp), true},
{"et differs",
&ACLUpdateOp{
EWayland, "/run/user/1971/wayland-0",
[]acl.Perm{acl.Read, acl.Write, acl.Execute},
}, &ACLUpdateOp{
EX11, "/run/user/1971/wayland-0",
[]acl.Perm{acl.Read, acl.Write, acl.Execute},
}, false},
{"path differs", &ACLUpdateOp{
EWayland, "/run/user/1971/wayland-0",
[]acl.Perm{acl.Read, acl.Write, acl.Execute},
}, &ACLUpdateOp{
EWayland, "/run/user/1971/wayland-1",
[]acl.Perm{acl.Read, acl.Write, acl.Execute},
}, false},
{"perms differs", &ACLUpdateOp{
EWayland, "/run/user/1971/wayland-0",
[]acl.Perm{acl.Read, acl.Write, acl.Execute},
}, &ACLUpdateOp{
EWayland, "/run/user/1971/wayland-0",
[]acl.Perm{acl.Read, acl.Write},
}, false},
{"equals", &ACLUpdateOp{
EWayland, "/run/user/1971/wayland-0",
[]acl.Perm{acl.Read, acl.Write, acl.Execute},
}, &ACLUpdateOp{
EWayland, "/run/user/1971/wayland-0",
[]acl.Perm{acl.Read, acl.Write, acl.Execute},
}, true},
})
checkOpMeta(t, []opMetaTestCase{
{"clear",
&ACLUpdateOp{Process, "/proc/nonexistent", []acl.Perm{}},
Process, "/proc/nonexistent",
`--- type: process path: "/proc/nonexistent"`},
{"read",
&ACLUpdateOp{User, "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/0", []acl.Perm{acl.Read}},
User, "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/0",
`r-- type: user path: "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/0"`},
{"write",
&ACLUpdateOp{User, "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/1", []acl.Perm{acl.Write}},
User, "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/1",
`-w- type: user path: "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/1"`},
{"execute",
&ACLUpdateOp{User, "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/2", []acl.Perm{acl.Execute}},
User, "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/2",
`--x type: user path: "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/2"`},
{"wayland",
&ACLUpdateOp{EWayland, "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/wayland", []acl.Perm{acl.Read, acl.Write}},
EWayland, "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/wayland",
`rw- type: wayland path: "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/wayland"`},
{"x11",
&ACLUpdateOp{EX11, "/tmp/.X11-unix/X0", []acl.Perm{acl.Read, acl.Execute}},
EX11, "/tmp/.X11-unix/X0",
`r-x type: x11 path: "/tmp/.X11-unix/X0"`},
{"dbus",
&ACLUpdateOp{EDBus, "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/bus", []acl.Perm{acl.Write, acl.Execute}},
EDBus, "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/bus",
`-wx type: dbus path: "/tmp/hakurei.0/27d81d567f8fae7f33278eec45da9446/bus"`},
{"pulseaudio",
&ACLUpdateOp{EPulse, "/run/user/1971/hakurei/27d81d567f8fae7f33278eec45da9446/pulse", []acl.Perm{acl.Read, acl.Write, acl.Execute}},
EPulse, "/run/user/1971/hakurei/27d81d567f8fae7f33278eec45da9446/pulse",
`rwx type: pulseaudio path: "/run/user/1971/hakurei/27d81d567f8fae7f33278eec45da9446/pulse"`},
})
}