test-selinux: add some simple tests which call functions and print the results and timings

.gitignore

@@ -246,6 +246,7 @@
 /test-ring
 /test-rlimit-util
 /test-sched-prio
+/test-selinux
 /test-set
 /test-sigbus
 /test-signal-util

Makefile.am

@@ -1479,7 +1479,8 @@ tests += \
 	test-dns-domain \
 	test-install-root \
 	test-rlimit-util \
-	test-signal-util
+	test-signal-util \
+	test-selinux
 
 if HAVE_ACL
 tests += \
@@ -1873,6 +1874,12 @@ test_signal_util_SOURCES = \
 test_signal_util_LDADD = \
 	libshared.la
 
+test_selinux_SOURCES = \
+	src/test/test-selinux.c
+
+test_selinux_LDADD = \
+	libshared.la
+
 BUILT_SOURCES += \
 	src/test/test-hashmap-ordered.c
 

src/test/test-selinux.c

@@ -0,0 +1,117 @@
+/***
+  This file is part of systemd.
+
+  Copyright 2016 Zbigniew Jędrzejewski-Szmek
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <sys/stat.h>
+
+#include "alloc-util.h"
+#include "fd-util.h"
+#include "log.h"
+#include "selinux-util.h"
+#include "time-util.h"
+
+static void test_testing(void) {
+        bool b;
+
+        log_info("============ %s ==========", __func__);
+
+        b = mac_selinux_use();
+        log_info("mac_selinux_use → %d", b);
+
+        b = mac_selinux_have();
+        log_info("mac_selinux_have → %d", b);
+
+        mac_selinux_retest();
+
+        b = mac_selinux_use();
+        log_info("mac_selinux_use → %d", b);
+
+        b = mac_selinux_have();
+        log_info("mac_selinux_have → %d", b);
+}
+
+static void test_loading(void) {
+        usec_t n1, n2;
+        int r;
+
+        log_info("============ %s ==========", __func__);
+
+        n1 = now(CLOCK_MONOTONIC);
+        r = mac_selinux_init();
+        n2 = now(CLOCK_MONOTONIC);
+        log_info_errno(r, "mac_selinux_init → %d (%m) %.2fs", r, (n2 - n1)/1e6);
+}
+
+static void test_cleanup(void) {
+        usec_t n1, n2;
+
+        log_info("============ %s ==========", __func__);
+
+        n1 = now(CLOCK_MONOTONIC);
+        mac_selinux_finish();
+        n2 = now(CLOCK_MONOTONIC);
+        log_info("mac_selinux_finish → %.2fs", (n2 - n1)/1e6);
+}
+
+static void test_misc(const char* fname) {
+        _cleanup_(mac_selinux_freep) char *label = NULL, *label2 = NULL, *label3 = NULL;
+        int r;
+        _cleanup_close_ int fd = -1;
+
+        log_info("============ %s ==========", __func__);
+
+        r = mac_selinux_get_our_label(&label);
+        log_info_errno(r, "mac_selinux_get_our_label → %d (%m), \"%s\"", r, label);
+
+        r = mac_selinux_get_create_label_from_exe(fname, &label2);
+        log_info_errno(r, "mac_selinux_create_label_from_exe → %d (%m), \"%s\"", r, label2);
+
+        fd = socket(AF_INET, SOCK_DGRAM, 0);
+        assert_se(fd >= 0);
+
+        r = mac_selinux_get_child_mls_label(fd, fname, label2, &label3);
+        log_info_errno(r, "mac_selinux_get_child_mls_label → %d (%m), \"%s\"", r, label3);
+}
+
+static void test_create_file_prepare(const char* fname) {
+        int r;
+
+        log_info("============ %s ==========", __func__);
+
+        r = mac_selinux_create_file_prepare(fname, S_IRWXU);
+        log_info_errno(r, "mac_selinux_create_file_prepare → %d (%m)", r);
+
+        mac_selinux_create_file_clear();
+}
+
+int main(int argc, char **argv) {
+        const char *path = SYSTEMD_BINARY_PATH;
+        if (argc >= 2)
+                path = argv[1];
+
+        log_set_max_level(LOG_DEBUG);
+        log_parse_environment();
+
+        test_testing();
+        test_loading();
+        test_misc(path);
+        test_create_file_prepare(path);
+        test_cleanup();
+
+        return 0;
+}