mirror of
https://github.com/rwinkhart/go-winio.git
synced 2026-08-28 04:46:50 -04:00
106 lines
2.7 KiB
Go
106 lines
2.7 KiB
Go
package security
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import (
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"regexp"
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"strings"
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"testing"
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)
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// TestGrantVmGroupAccess verifies for the three case of a file, a directory,
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// and a file in a directory that the appropriate ACEs are set, including
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// inheritance in the second two examples. These are the expected ACES. Is
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// verified by running icacls and comparing output.
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//
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// File:
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// S-1-15-3-1024-2268835264-3721307629-241982045-173645152-1490879176-104643441-2915960892-1612460704:(R,W)
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// S-1-5-83-1-3166535780-1122986932-343720105-43916321:(R,W)
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//
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// Directory:
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// S-1-15-3-1024-2268835264-3721307629-241982045-173645152-1490879176-104643441-2915960892-1612460704:(OI)(CI)(R,W)
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// S-1-5-83-1-3166535780-1122986932-343720105-43916321:(OI)(CI)(R,W)
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//
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// File in directory (inherited):
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// S-1-15-3-1024-2268835264-3721307629-241982045-173645152-1490879176-104643441-2915960892-1612460704:(I)(R,W)
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// S-1-5-83-1-3166535780-1122986932-343720105-43916321:(I)(R,W)
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func TestGrantVmGroupAccess(t *testing.T) {
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f, err := ioutil.TempFile("", "gvmgafile")
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if err != nil {
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t.Fatal(err)
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}
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defer func() {
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f.Close()
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os.Remove(f.Name())
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}()
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d, err := ioutil.TempDir("", "gvmgadir")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(d)
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find, err := os.Create(filepath.Join(d, "find.txt"))
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if err != nil {
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t.Fatal(err)
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}
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if err := GrantVmGroupAccess(f.Name()); err != nil {
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t.Fatal(err)
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}
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if err := GrantVmGroupAccess(d); err != nil {
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t.Fatal(err)
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}
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verifyicacls(t,
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f.Name(),
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[]string{`NT VIRTUAL MACHINE\\Virtual Machines:(R)`},
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)
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// Two items here:
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// - One explicit read only.
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// - Other applies to this folder, subfolders and files
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// (OI): object inherit
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// (CI): container inherit
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// (IO): inherit only
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// (GR): generic read
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//
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// In properties for the directory, advanced security settings, this will
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// show as a single line "Allow/Virtual Machines/Read/Inherited from none/This folder, subfolder and files
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verifyicacls(t,
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d,
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[]string{`NT VIRTUAL MACHINE\\Virtual Machines:(R)`, `NT VIRTUAL MACHINE\\Virtual Machines:(OI)(CI)(IO)(GR)`},
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)
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verifyicacls(t,
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find.Name(),
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[]string{`NT VIRTUAL MACHINE\\Virtual Machines:(I)(R)`},
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)
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}
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func verifyicacls(t *testing.T, name string, aces []string) {
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cmd := exec.Command("icacls", name)
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outb, err := cmd.CombinedOutput()
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if err != nil {
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t.Fatal(err)
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}
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out := string(outb)
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for _, ace := range aces {
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// Avoid '(' and ')' being part of match groups
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ace = strings.Replace(ace, "(", "\\(", -1)
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ace = strings.Replace(ace, ")", "\\)", -1)
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rx := regexp.MustCompile(ace)
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matches := rx.FindAllStringIndex(out, -1)
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if len(matches) != 1 {
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t.Fatalf("expected one match for %s got %d\n%s", ace, len(matches), out)
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}
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}
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}
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