Privatae
119 lines
4.3 KiB
Go
119 lines
4.3 KiB
Go
//go:build !windows
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package main
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import (
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"os"
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"path/filepath"
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"strings"
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"testing"
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)
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func TestOpViewDecideKeepsTheBaseAndWhatIsDeclaredAndCoversTheRest(t *testing.T) {
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m := &opManifest{Effects: opEffects{Files: []string{"/srv/app/"}}, Reads: []string{"/etc/nginx/*.conf"}}
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segs := opViewSegments(opViewVisible(opViewDeclared(m)))
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for p, want := range map[string]opViewAction{
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"/usr/bin/python3": opViewKeep,
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"/usr": opViewDescend, // /usr/local/sbin and friends are covered
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"/usr/local/sbin": opViewHide,
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"/etc": opViewDescend,
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"/etc/passwd": opViewKeep,
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"/etc/shadow": opViewHide,
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"/etc/ssl": opViewDescend,
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"/etc/ssl/certs/ca.pem": opViewKeep,
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"/etc/ssl/private": opViewHide,
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"/etc/nginx": opViewDescend,
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"/etc/nginx/site.conf": opViewKeep,
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"/etc/nginx/site.key": opViewHide,
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"/srv": opViewDescend,
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"/srv/app": opViewKeep,
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"/srv/app/deep/file": opViewKeep,
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"/srv/other": opViewHide,
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"/root": opViewHide,
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"/home": opViewHide,
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"/var": opViewDescend, // for /var/tmp
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"/var/tmp": opViewKeep,
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"/var/lib": opViewHide,
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"/opt": opViewDescend, // for the op's own directory
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"/opt/bastion-op/run": opViewKeep,
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"/opt/acme": opViewHide,
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"/proc/1/environ": opViewKeep, // a fresh proc of the op's own pid namespace
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"/boot": opViewHide,
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"/etc/systemd/system/x.sh": opViewHide,
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} {
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if got := opViewDecide(p, segs); got != want {
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t.Errorf("%s: got %d, want %d", p, got, want)
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}
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}
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}
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func TestOpSensitivePathsAreRefusedAtUnderOrAboveAndThroughLinks(t *testing.T) {
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setupBox(t)
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for _, p := range []string{
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"/etc/shadow", "/etc/", "/etc/*", "/etc/ssh/sshd_config", "/etc/systemd/system/app.service",
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"/root/.git-credentials", "/home/alice/.ssh/authorized_keys", "/home/*/.docker/config.json",
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"/etc/wireguard/wg0.conf", "/var/lib/rancher/k3s/agent/client.key", "/etc/privatae/config.json",
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"/var/lib/", "/home/",
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} {
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sens, err := opSensitiveMatch(p)
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if err != nil {
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t.Fatal(err)
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}
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if sens == "" {
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t.Errorf("%s must reach a sensitive path", p)
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}
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// Refused either as sensitive or, above the record (/etc/, /var/lib/),
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// by the record's own rule first — refused either way.
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if err := effectOK(p); err == nil {
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t.Errorf("%s: effectOK must refuse it", p)
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}
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}
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for _, p := range []string{"/etc/nginx/", "/etc/*.conf", "/srv/app/", "/opt/acme/app/main.py", "/home/alice/site/"} {
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sens, err := opSensitiveMatch(p)
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if err != nil {
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t.Fatal(err)
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}
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if sens != "" {
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t.Errorf("%s reaches no credential store, got %s", p, sens)
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}
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}
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// A plain path that is a link onto a store the person named is refused as
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// what it resolves to.
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store := t.TempDir()
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cfg, _ := configDirPath()
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_ = os.MkdirAll(cfg, 0o700)
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if err := os.WriteFile(filepath.Join(cfg, opSensitiveFileName), []byte("# ours\n"+store+" # the vault\n"), 0o600); err != nil {
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t.Fatal(err)
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}
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link := filepath.Join(t.TempDir(), "innocent")
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if err := os.Symlink(store, link); err != nil {
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t.Fatal(err)
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}
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if sens, _ := opSensitiveMatch(link + "/token"); sens == "" {
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t.Fatal("a link onto a sensitive path is refused as what it names")
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}
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// A line that is not an absolute path refuses every op rather than drop
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// the store the person meant to name.
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_ = os.WriteFile(filepath.Join(cfg, opSensitiveFileName), []byte("relative/path\n"), 0o600)
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if _, err := opSensitiveMatch("/srv/app/"); err == nil {
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t.Fatal("a malformed sensitive_paths refuses every op")
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}
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}
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func TestOpManifestReadsAreJudgedLikeEffects(t *testing.T) {
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setupBox(t)
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base := strings.Replace(opTestManifest, "modes:", "reads: [%s]\nmodes:", 1)
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for read, ok := range map[string]bool{
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`"/etc/nginx/site.conf"`: true,
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`"/etc/shadow"`: false,
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`"relative"`: false,
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`"/proc/1/environ"`: false,
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`"/"`: false,
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} {
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_, err := parseOpManifest([]byte(strings.Replace(strings.Replace(base, "%s/", "/srv/work/optest/x/", 1), "%s", read, 1)))
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if (err == nil) != ok {
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t.Errorf("reads %s: ok=%v err=%v", read, ok, err)
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}
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}
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}
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