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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <stddef.h>
#include "alloc-util.h"
#include "errno-util.h"
#include "fd-util.h"
#include "fileio.h"
#include "fs-util.h"
#include "tests.h"
#include "tmpfile-util.h"
#include "uid-range.h"
#include "user-util.h"
#include "virt.h"
TEST(uid_range) {
_cleanup_(uid_range_freep) UIDRange *p = NULL;
uid_t search;
assert_se(uid_range_covers(p, 0, 0));
assert_se(!uid_range_covers(p, 0, 1));
assert_se(!uid_range_covers(p, 100, UINT32_MAX));
assert_se(!uid_range_covers(p, UINT32_MAX, 1));
assert_se(!uid_range_covers(p, UINT32_MAX - 10, 11));
assert_se(uid_range_entries(p) == 0);
assert_se(uid_range_size(p) == 0);
assert_se(uid_range_is_empty(p));
assert_se(uid_range_add_str(&p, "500-999") >= 0);
assert_se(p);
assert_se(uid_range_entries(p) == 1);
assert_se(uid_range_size(p) == 500);
assert_se(!uid_range_is_empty(p));
assert_se(p->entries[0].start == 500);
assert_se(p->entries[0].nr == 500);
assert_se(!uid_range_contains(p, 499));
assert_se(uid_range_contains(p, 500));
assert_se(uid_range_contains(p, 999));
assert_se(!uid_range_contains(p, 1000));
assert_se(!uid_range_covers(p, 100, 150));
assert_se(!uid_range_covers(p, 400, 200));
assert_se(!uid_range_covers(p, 499, 1));
assert_se(uid_range_covers(p, 500, 1));
assert_se(uid_range_covers(p, 501, 10));
assert_se(uid_range_covers(p, 999, 1));
assert_se(!uid_range_covers(p, 999, 2));
assert_se(!uid_range_covers(p, 1000, 1));
assert_se(!uid_range_covers(p, 1000, 100));
assert_se(!uid_range_covers(p, 1001, 100));
search = UID_INVALID;
assert_se(uid_range_next_lower(p, &search));
assert_se(search == 999);
assert_se(uid_range_next_lower(p, &search));
assert_se(search == 998);
search = 501;
assert_se(uid_range_next_lower(p, &search));
assert_se(search == 500);
assert_se(uid_range_next_lower(p, &search) == -EBUSY);
assert_se(uid_range_add_str(&p, "1000") >= 0);
assert_se(uid_range_entries(p) == 1);
assert_se(p->entries[0].start == 500);
assert_se(p->entries[0].nr == 501);
assert_se(uid_range_add_str(&p, "30-40") >= 0);
assert_se(uid_range_entries(p) == 2);
assert_se(uid_range_size(p) == 500 + 1 + 11);
assert_se(!uid_range_is_empty(p));
assert_se(p->entries[0].start == 30);
assert_se(p->entries[0].nr == 11);
assert_se(p->entries[1].start == 500);
assert_se(p->entries[1].nr == 501);
assert_se(uid_range_add_str(&p, "60-70") >= 0);
assert_se(uid_range_entries(p) == 3);
assert_se(uid_range_size(p) == 500 + 1 + 11 + 11);
assert_se(!uid_range_is_empty(p));
assert_se(p->entries[0].start == 30);
assert_se(p->entries[0].nr == 11);
assert_se(p->entries[1].start == 60);
assert_se(p->entries[1].nr == 11);
assert_se(p->entries[2].start == 500);
assert_se(p->entries[2].nr == 501);
assert_se(uid_range_add_str(&p, "20-2000") >= 0);
assert_se(uid_range_entries(p) == 1);
assert_se(uid_range_size(p) == 1981);
assert_se(p->entries[0].start == 20);
assert_se(p->entries[0].nr == 1981);
assert_se(uid_range_add_str(&p, "2002") >= 0);
assert_se(uid_range_entries(p) == 2);
assert_se(uid_range_size(p) == 1982);
assert_se(p->entries[0].start == 20);
assert_se(p->entries[0].nr == 1981);
assert_se(p->entries[1].start == 2002);
assert_se(p->entries[1].nr == 1);
_cleanup_(uid_range_freep) UIDRange *q = NULL;
assert_se(!uid_range_equal(p, q));
assert_se(uid_range_add_str(&q, "20-2000") >= 0);
assert_se(!uid_range_equal(p, q));
assert_se(uid_range_add_str(&q, "2002") >= 0);
assert_se(uid_range_equal(p, q));
assert_se(uid_range_add_str(&p, "2001") >= 0);
assert_se(uid_range_entries(p) == 1);
assert_se(uid_range_size(p) == 1983);
assert_se(p->entries[0].start == 20);
assert_se(p->entries[0].nr == 1983);
assert_se(uid_range_add_str(&q, "2001") >= 0);
assert_se(uid_range_equal(p, q));
}
TEST(load_userns) {
_cleanup_(uid_range_freep) UIDRange *p = NULL;
_cleanup_(unlink_and_freep) char *fn = NULL;
_cleanup_fclose_ FILE *f = NULL;
int r;
r = uid_range_load_userns(NULL, UID_RANGE_USERNS_INSIDE, &p);
if (ERRNO_IS_NEG_NOT_SUPPORTED(r))
return;
assert_se(r >= 0);
assert_se(uid_range_contains(p, getuid()));
r = running_in_userns();
if (r == 0) {
assert_se(p->n_entries == 1);
assert_se(p->entries[0].start == 0);
assert_se(p->entries[0].nr == UINT32_MAX);
assert_se(uid_range_covers(p, 0, UINT32_MAX));
}
assert_se(fopen_temporary_child(NULL, &f, &fn) >= 0);
fputs("0 0 20\n"
"100 0 20\n", f);
assert_se(fflush_and_check(f) >= 0);
p = uid_range_free(p);
assert_se(uid_range_load_userns(fn, UID_RANGE_USERNS_INSIDE, &p) >= 0);
assert_se(uid_range_contains(p, 0));
assert_se(uid_range_contains(p, 19));
assert_se(!uid_range_contains(p, 20));
assert_se(!uid_range_contains(p, 99));
assert_se(uid_range_contains(p, 100));
assert_se(uid_range_contains(p, 119));
assert_se(!uid_range_contains(p, 120));
}
TEST(uid_range_coalesce) {
_cleanup_(uid_range_freep) UIDRange *p = NULL;
for (size_t i = 0; i < 10; i++) {
assert_se(uid_range_add_internal(&p, i * 10, 10, /* coalesce = */ false) >= 0);
assert_se(uid_range_add_internal(&p, i * 10 + 5, 10, /* coalesce = */ false) >= 0);
}
assert_se(uid_range_add_internal(&p, 100, 1, /* coalesce = */ true) >= 0);
assert_se(p->n_entries == 1);
assert_se(p->entries[0].start == 0);
assert_se(p->entries[0].nr == 105);
p = uid_range_free(p);
for (size_t i = 0; i < 10; i++) {
assert_se(uid_range_add_internal(&p, (10 - i) * 10, 10, /* coalesce = */ false) >= 0);
assert_se(uid_range_add_internal(&p, (10 - i) * 10 + 5, 10, /* coalesce = */ false) >= 0);
}
assert_se(uid_range_add_internal(&p, 100, 1, /* coalesce = */ true) >= 0);
assert_se(p->n_entries == 1);
assert_se(p->entries[0].start == 10);
assert_se(p->entries[0].nr == 105);
p = uid_range_free(p);
for (size_t i = 0; i < 10; i++) {
assert_se(uid_range_add_internal(&p, i * 10, 10, /* coalesce = */ false) >= 0);
assert_se(uid_range_add_internal(&p, i * 10 + 5, 10, /* coalesce = */ false) >= 0);
assert_se(uid_range_add_internal(&p, (10 - i) * 10, 10, /* coalesce = */ false) >= 0);
assert_se(uid_range_add_internal(&p, (10 - i) * 10 + 5, 10, /* coalesce = */ false) >= 0);
}
assert_se(uid_range_add_internal(&p, 100, 1, /* coalesce = */ true) >= 0);
assert_se(p->n_entries == 1);
assert_se(p->entries[0].start == 0);
assert_se(p->entries[0].nr == 115);
}
DEFINE_TEST_MAIN(LOG_DEBUG);
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