bloblist.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2018, Google Inc. All rights reserved.
*/
#include <common.h>
#include <bloblist.h>
#include <log.h>
#include <mapmem.h>
#include <test/suites.h>
#include <test/test.h>
#include <test/ut.h>
DECLARE_GLOBAL_DATA_PTR;
/* Declare a new compression test */
#define BLOBLIST_TEST(_name, _flags) \
UNIT_TEST(_name, _flags, bloblist_test)
enum {
TEST_TAG = 1,
TEST_TAG2 = 2,
TEST_TAG_MISSING = 3,
TEST_SIZE = 10,
TEST_SIZE2 = 20,
TEST_ADDR = CONFIG_BLOBLIST_ADDR,
TEST_BLOBLIST_SIZE = 0x100,
};
static struct bloblist_hdr *clear_bloblist(void)
{
struct bloblist_hdr *hdr;
/* Clear out any existing bloblist so we have a clean slate */
hdr = map_sysmem(CONFIG_BLOBLIST_ADDR, TEST_BLOBLIST_SIZE);
memset(hdr, '\0', TEST_BLOBLIST_SIZE);
return hdr;
}
static int bloblist_test_init(struct unit_test_state *uts)
{
struct bloblist_hdr *hdr;
hdr = clear_bloblist();
ut_asserteq(-ENOENT, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
hdr->version++;
ut_asserteq(-EPROTONOSUPPORT, bloblist_check(TEST_ADDR,
TEST_BLOBLIST_SIZE));
ut_asserteq(-ENOSPC, bloblist_new(TEST_ADDR, 0x10, 0));
ut_asserteq(-EFAULT, bloblist_new(1, TEST_BLOBLIST_SIZE, 0));
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
ut_assertok(bloblist_finish());
ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
hdr->flags++;
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
return 1;
}
BLOBLIST_TEST(bloblist_test_init, 0);
static int bloblist_test_blob(struct unit_test_state *uts)
{
struct bloblist_hdr *hdr;
struct bloblist_rec *rec, *rec2;
char *data;
/* At the start there should be no records */
hdr = clear_bloblist();
ut_assertnull(bloblist_find(TEST_TAG, TEST_BLOBLIST_SIZE));
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
/* Add a record and check that we can find it */
data = bloblist_add(TEST_TAG, TEST_SIZE);
rec = (void *)(hdr + 1);
ut_asserteq_ptr(rec + 1, data);
data = bloblist_find(TEST_TAG, TEST_SIZE);
ut_asserteq_ptr(rec + 1, data);
/* Check the 'ensure' method */
ut_asserteq_ptr(data, bloblist_ensure(TEST_TAG, TEST_SIZE));
ut_assertnull(bloblist_ensure(TEST_TAG, TEST_SIZE2));
rec2 = (struct bloblist_rec *)(data + ALIGN(TEST_SIZE, BLOBLIST_ALIGN));
/* Check for a non-existent record */
ut_asserteq_ptr(data, bloblist_ensure(TEST_TAG, TEST_SIZE));
ut_asserteq_ptr(rec2 + 1, bloblist_ensure(TEST_TAG2, TEST_SIZE2));
ut_assertnull(bloblist_find(TEST_TAG_MISSING, 0));
return 0;
}
BLOBLIST_TEST(bloblist_test_blob, 0);
static int bloblist_test_bad_blob(struct unit_test_state *uts)
{
struct bloblist_hdr *hdr;
void *data;
hdr = clear_bloblist();
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
data = hdr + 1;
data += sizeof(struct bloblist_rec);
ut_asserteq_ptr(data, bloblist_ensure(TEST_TAG, TEST_SIZE));
ut_asserteq_ptr(data, bloblist_ensure(TEST_TAG, TEST_SIZE));
return 0;
}
BLOBLIST_TEST(bloblist_test_bad_blob, 0);
static int bloblist_test_checksum(struct unit_test_state *uts)
{
struct bloblist_hdr *hdr;
char *data, *data2;
hdr = clear_bloblist();
ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
ut_assertok(bloblist_finish());
ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
/*
* Now change things amd make sure that the checksum notices. We cannot
* change the size or alloced fields, since that will crash the code.
* It has to rely on these being correct.
*/
hdr->flags--;
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
hdr->flags++;
hdr->size--;
ut_asserteq(-EFBIG, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
hdr->size++;
hdr->spare++;
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
hdr->spare--;
hdr->chksum++;
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
hdr->chksum--;
/* Make sure the checksum changes when we add blobs */
data = bloblist_add(TEST_TAG, TEST_SIZE);
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
data2 = bloblist_add(TEST_TAG2, TEST_SIZE2);
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
ut_assertok(bloblist_finish());
/* It should also change if we change the data */
ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
*data += 1;
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
*data -= 1;
ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
*data2 += 1;
ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
*data2 -= 1;
/*
* Changing data outside the range of valid data should not affect
* the checksum.
*/
ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
data[TEST_SIZE]++;
data2[TEST_SIZE2]++;
ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
return 0;
}
BLOBLIST_TEST(bloblist_test_checksum, 0);
int do_ut_bloblist(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
struct unit_test *tests = ll_entry_start(struct unit_test,
bloblist_test);
const int n_ents = ll_entry_count(struct unit_test, bloblist_test);
return cmd_ut_category("bloblist", tests, n_ents, argc, argv);
}