src/test/test-dev-setup.c

/* SPDX-License-Identifier: LGPL-2.1+ */

#include "capability-util.h"
#include "dev-setup.h"
#include "fs-util.h"
#include "path-util.h"
#include "rm-rf.h"
#include "tmpfile-util.h"

int main(int argc, char *argv[]) {
        _cleanup_(rm_rf_physical_and_freep) char *p = NULL;
        const char *f;
        struct stat st;

        if (have_effective_cap(CAP_DAC_OVERRIDE) <= 0)
                return EXIT_TEST_SKIP;

        assert_se(mkdtemp_malloc("/tmp/test-dev-setupXXXXXX", &p) >= 0);

        f = prefix_roota(p, "/run");
        assert_se(mkdir(f, 0755) >= 0);

        assert_se(make_inaccessible_nodes(p, 1, 1) >= 0);

        f = prefix_roota(p, "/run/systemd/inaccessible/reg");
        assert_se(stat(f, &st) >= 0);
        assert_se(S_ISREG(st.st_mode));
        assert_se((st.st_mode & 07777) == 0000);

        f = prefix_roota(p, "/run/systemd/inaccessible/dir");
        assert_se(stat(f, &st) >= 0);
        assert_se(S_ISDIR(st.st_mode));
        assert_se((st.st_mode & 07777) == 0000);

        f = prefix_roota(p, "/run/systemd/inaccessible/fifo");
        assert_se(stat(f, &st) >= 0);
        assert_se(S_ISFIFO(st.st_mode));
        assert_se((st.st_mode & 07777) == 0000);

        f = prefix_roota(p, "/run/systemd/inaccessible/sock");
        assert_se(stat(f, &st) >= 0);
        assert_se(S_ISSOCK(st.st_mode));
        assert_se((st.st_mode & 07777) == 0000);

        f = prefix_roota(p, "/run/systemd/inaccessible/chr");
        if (stat(f, &st) < 0)
                assert_se(errno == ENOENT);
        else {
                assert_se(S_ISCHR(st.st_mode));
                assert_se((st.st_mode & 07777) == 0000);
        }

        f = prefix_roota(p, "/run/systemd/inaccessible/blk");
        if (stat(f, &st) < 0)
                assert_se(errno == ENOENT);
        else {
                assert_se(S_ISBLK(st.st_mode));
                assert_se((st.st_mode & 07777) == 0000);
        }

        return EXIT_SUCCESS;
}