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-rw-r--r--src/test/test-rm-rf.c114
1 files changed, 114 insertions, 0 deletions
diff --git a/src/test/test-rm-rf.c b/src/test/test-rm-rf.c
new file mode 100644
index 0000000..6a8b7d8
--- /dev/null
+++ b/src/test/test-rm-rf.c
@@ -0,0 +1,114 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <unistd.h>
+
+#include "alloc-util.h"
+#include "process-util.h"
+#include "rm-rf.h"
+#include "string-util.h"
+#include "tests.h"
+#include "tmpfile-util.h"
+
+static void test_rm_rf_chmod_inner(void) {
+ _cleanup_(rm_rf_physical_and_freep) char *d = NULL;
+ const char *a, *b, *x, *y;
+ struct stat st;
+
+ assert_se(getuid() != 0);
+
+ assert_se(mkdtemp_malloc("/tmp/test-rm-rf.XXXXXXX", &d) >= 0);
+ a = strjoina(d, "/a");
+ b = strjoina(a, "/b");
+ x = strjoina(d, "/x");
+ y = strjoina(x, "/y");
+
+ assert_se(mkdir(x, 0700) >= 0);
+ assert_se(mknod(y, S_IFREG | 0600, 0) >= 0);
+
+ assert_se(chmod(y, 0400) >= 0);
+ assert_se(chmod(x, 0500) >= 0);
+ assert_se(chmod(d, 0500) >= 0);
+
+ assert_se(rm_rf(d, REMOVE_PHYSICAL) == -EACCES);
+
+ assert_se(access(d, F_OK) >= 0);
+ assert_se(access(x, F_OK) >= 0);
+ assert_se(access(y, F_OK) >= 0);
+
+ assert_se(rm_rf(d, REMOVE_PHYSICAL|REMOVE_CHMOD) >= 0);
+
+ assert_se(access(d, F_OK) >= 0);
+ assert_se(access(x, F_OK) < 0 && errno == ENOENT);
+ assert_se(access(y, F_OK) < 0 && errno == ENOENT);
+
+ assert_se(mkdir(a, 0700) >= 0);
+ assert_se(mkdir(b, 0700) >= 0);
+ assert_se(mkdir(x, 0700) >= 0);
+ assert_se(mknod(y, S_IFREG | 0600, 0) >= 0);
+
+ assert_se(chmod(b, 0000) >= 0);
+ assert_se(chmod(a, 0000) >= 0);
+ assert_se(chmod(y, 0000) >= 0);
+ assert_se(chmod(x, 0000) >= 0);
+ assert_se(chmod(d, 0500) >= 0);
+
+ assert_se(rm_rf(d, REMOVE_PHYSICAL|REMOVE_CHMOD|REMOVE_CHMOD_RESTORE|REMOVE_ONLY_DIRECTORIES) == -ENOTEMPTY);
+
+ assert_se(access(a, F_OK) < 0 && errno == ENOENT);
+ assert_se(access(d, F_OK) >= 0);
+ assert_se(stat(d, &st) >= 0 && (st.st_mode & 07777) == 0500);
+ assert_se(access(x, F_OK) >= 0);
+ assert_se(stat(x, &st) >= 0 && (st.st_mode & 07777) == 0000);
+ assert_se(chmod(x, 0700) >= 0);
+ assert_se(access(y, F_OK) >= 0);
+ assert_se(stat(y, &st) >= 0 && (st.st_mode & 07777) == 0000);
+
+ assert_se(chmod(y, 0000) >= 0);
+ assert_se(chmod(x, 0000) >= 0);
+ assert_se(chmod(d, 0000) >= 0);
+
+ assert_se(rm_rf(d, REMOVE_PHYSICAL|REMOVE_CHMOD|REMOVE_CHMOD_RESTORE) >= 0);
+
+ assert_se(stat(d, &st) >= 0 && (st.st_mode & 07777) == 0000);
+ assert_se(access(d, F_OK) >= 0);
+ assert_se(chmod(d, 0700) >= 0);
+ assert_se(access(x, F_OK) < 0 && errno == ENOENT);
+
+ assert_se(mkdir(x, 0700) >= 0);
+ assert_se(mknod(y, S_IFREG | 0600, 0) >= 0);
+
+ assert_se(chmod(y, 0000) >= 0);
+ assert_se(chmod(x, 0000) >= 0);
+ assert_se(chmod(d, 0000) >= 0);
+
+ assert_se(rm_rf(d, REMOVE_PHYSICAL|REMOVE_CHMOD|REMOVE_ROOT) >= 0);
+
+ assert_se(access(d, F_OK) < 0 && errno == ENOENT);
+}
+
+TEST(rm_rf_chmod) {
+ int r;
+
+ if (getuid() == 0) {
+ /* This test only works unpriv (as only then the access mask for the owning user matters),
+ * hence drop privs here */
+
+ r = safe_fork("(setresuid)", FORK_DEATHSIG|FORK_WAIT, NULL);
+ assert_se(r >= 0);
+
+ if (r == 0) {
+ /* child */
+
+ assert_se(setresuid(1, 1, 1) >= 0);
+
+ test_rm_rf_chmod_inner();
+ _exit(EXIT_SUCCESS);
+ }
+
+ return;
+ }
+
+ test_rm_rf_chmod_inner();
+}
+
+DEFINE_TEST_MAIN(LOG_DEBUG);