Daan De Meyer
dd3c825294
Instead of having fopen_temporary() create the file either next to an existing file or in tmp/, let's split this up clearly into two different functions, one for creating temporary files next to existing files, and one for creating a temporary file in a directory.
176 lines
6.2 KiB
C
176 lines
6.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include <stddef.h>
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#include "alloc-util.h"
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#include "errno-util.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "fs-util.h"
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#include "tests.h"
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#include "tmpfile-util.h"
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#include "uid-range.h"
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#include "user-util.h"
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#include "virt.h"
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TEST(uid_range) {
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_cleanup_(uid_range_freep) UidRange *p = NULL;
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uid_t search;
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assert_se(uid_range_covers(p, 0, 0));
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assert_se(!uid_range_covers(p, 0, 1));
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assert_se(!uid_range_covers(p, 100, UINT32_MAX));
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assert_se(uid_range_add_str(&p, "500-999") >= 0);
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assert_se(p);
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assert_se(p->n_entries == 1);
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assert_se(p->entries[0].start == 500);
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assert_se(p->entries[0].nr == 500);
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assert_se(!uid_range_contains(p, 499));
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assert_se(uid_range_contains(p, 500));
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assert_se(uid_range_contains(p, 999));
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assert_se(!uid_range_contains(p, 1000));
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assert_se(!uid_range_covers(p, 100, 150));
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assert_se(!uid_range_covers(p, 400, 200));
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assert_se(!uid_range_covers(p, 499, 1));
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assert_se(uid_range_covers(p, 500, 1));
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assert_se(uid_range_covers(p, 501, 10));
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assert_se(uid_range_covers(p, 999, 1));
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assert_se(!uid_range_covers(p, 999, 2));
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assert_se(!uid_range_covers(p, 1000, 1));
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assert_se(!uid_range_covers(p, 1000, 100));
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assert_se(!uid_range_covers(p, 1001, 100));
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search = UID_INVALID;
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assert_se(uid_range_next_lower(p, &search));
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assert_se(search == 999);
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assert_se(uid_range_next_lower(p, &search));
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assert_se(search == 998);
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search = 501;
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assert_se(uid_range_next_lower(p, &search));
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assert_se(search == 500);
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assert_se(uid_range_next_lower(p, &search) == -EBUSY);
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assert_se(uid_range_add_str(&p, "1000") >= 0);
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assert_se(p->n_entries == 1);
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assert_se(p->entries[0].start == 500);
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assert_se(p->entries[0].nr == 501);
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assert_se(uid_range_add_str(&p, "30-40") >= 0);
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assert_se(p->n_entries == 2);
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assert_se(p->entries[0].start == 30);
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assert_se(p->entries[0].nr == 11);
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assert_se(p->entries[1].start == 500);
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assert_se(p->entries[1].nr == 501);
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assert_se(uid_range_add_str(&p, "60-70") >= 0);
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assert_se(p->n_entries == 3);
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assert_se(p->entries[0].start == 30);
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assert_se(p->entries[0].nr == 11);
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assert_se(p->entries[1].start == 60);
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assert_se(p->entries[1].nr == 11);
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assert_se(p->entries[2].start == 500);
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assert_se(p->entries[2].nr == 501);
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assert_se(uid_range_add_str(&p, "20-2000") >= 0);
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assert_se(p->n_entries == 1);
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assert_se(p->entries[0].start == 20);
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assert_se(p->entries[0].nr == 1981);
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assert_se(uid_range_add_str(&p, "2002") >= 0);
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assert_se(p->n_entries == 2);
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assert_se(p->entries[0].start == 20);
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assert_se(p->entries[0].nr == 1981);
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assert_se(p->entries[1].start == 2002);
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assert_se(p->entries[1].nr == 1);
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assert_se(uid_range_add_str(&p, "2001") >= 0);
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assert_se(p->n_entries == 1);
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assert_se(p->entries[0].start == 20);
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assert_se(p->entries[0].nr == 1983);
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}
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TEST(load_userns) {
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_cleanup_(uid_range_freep) UidRange *p = NULL;
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_cleanup_(unlink_and_freep) char *fn = NULL;
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_cleanup_fclose_ FILE *f = NULL;
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int r;
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r = uid_range_load_userns(&p, NULL);
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if (r < 0 && ERRNO_IS_NOT_SUPPORTED(r))
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return;
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assert_se(r >= 0);
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assert_se(uid_range_contains(p, getuid()));
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r = running_in_userns();
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if (r == 0) {
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assert_se(p->n_entries == 1);
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assert_se(p->entries[0].start == 0);
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assert_se(p->entries[0].nr == UINT32_MAX);
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assert_se(uid_range_covers(p, 0, UINT32_MAX));
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}
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assert_se(fopen_temporary_child(NULL, &f, &fn) >= 0);
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fputs("0 0 20\n"
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"100 0 20\n", f);
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assert_se(fflush_and_check(f) >= 0);
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p = uid_range_free(p);
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assert_se(uid_range_load_userns(&p, fn) >= 0);
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assert_se(uid_range_contains(p, 0));
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assert_se(uid_range_contains(p, 19));
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assert_se(!uid_range_contains(p, 20));
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assert_se(!uid_range_contains(p, 99));
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assert_se(uid_range_contains(p, 100));
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assert_se(uid_range_contains(p, 119));
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assert_se(!uid_range_contains(p, 120));
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}
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TEST(uid_range_coalesce) {
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_cleanup_(uid_range_freep) UidRange *p = NULL;
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for (size_t i = 0; i < 10; i++) {
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assert_se(uid_range_add_internal(&p, i * 10, 10, /* coalesce = */ false) >= 0);
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assert_se(uid_range_add_internal(&p, i * 10 + 5, 10, /* coalesce = */ false) >= 0);
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}
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assert_se(uid_range_add_internal(&p, 100, 1, /* coalesce = */ true) >= 0);
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assert_se(p->n_entries == 1);
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assert_se(p->entries[0].start == 0);
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assert_se(p->entries[0].nr == 105);
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p = uid_range_free(p);
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for (size_t i = 0; i < 10; i++) {
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assert_se(uid_range_add_internal(&p, (10 - i) * 10, 10, /* coalesce = */ false) >= 0);
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assert_se(uid_range_add_internal(&p, (10 - i) * 10 + 5, 10, /* coalesce = */ false) >= 0);
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}
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assert_se(uid_range_add_internal(&p, 100, 1, /* coalesce = */ true) >= 0);
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assert_se(p->n_entries == 1);
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assert_se(p->entries[0].start == 10);
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assert_se(p->entries[0].nr == 105);
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p = uid_range_free(p);
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for (size_t i = 0; i < 10; i++) {
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assert_se(uid_range_add_internal(&p, i * 10, 10, /* coalesce = */ false) >= 0);
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assert_se(uid_range_add_internal(&p, i * 10 + 5, 10, /* coalesce = */ false) >= 0);
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assert_se(uid_range_add_internal(&p, (10 - i) * 10, 10, /* coalesce = */ false) >= 0);
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assert_se(uid_range_add_internal(&p, (10 - i) * 10 + 5, 10, /* coalesce = */ false) >= 0);
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}
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assert_se(uid_range_add_internal(&p, 100, 1, /* coalesce = */ true) >= 0);
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assert_se(p->n_entries == 1);
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assert_se(p->entries[0].start == 0);
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assert_se(p->entries[0].nr == 115);
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}
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DEFINE_TEST_MAIN(LOG_DEBUG);
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