289 lines
9.9 KiB
TOML
289 lines
9.9 KiB
TOML
|
# Tests for recovering from conditions which shouldn't normally
|
||
|
|
# happen during normal operation of littlefs
|
||
|
|
|
||
|
|
# invalid pointer tests (outside of block_count)
|
||
|
|
|
||
|
|
[[case]] # invalid tail-pointer test
|
||
|
|
define.TAIL_TYPE = ['LFS_TYPE_HARDTAIL', 'LFS_TYPE_SOFTTAIL']
|
||
|
|
define.INVALSET = [0x3, 0x1, 0x2]
|
||
|
|
in = "lfs.c"
|
||
|
|
code = '''
|
||
|
|
// create littlefs
|
||
|
|
lfs_format(&lfs, &cfg) => 0;
|
||
|
|
|
||
|
|
// change tail-pointer to invalid pointers
|
||
|
|
lfs_init(&lfs, &cfg) => 0;
|
||
|
|
lfs_mdir_t mdir;
|
||
|
|
lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
|
||
|
|
lfs_dir_commit(&lfs, &mdir, LFS_MKATTRS(
|
||
|
|
{LFS_MKTAG(LFS_TYPE_HARDTAIL, 0x3ff, 8),
|
||
|
|
(lfs_block_t[2]){
|
||
|
|
(INVALSET & 0x1) ? 0xcccccccc : 0,
|
||
|
|
(INVALSET & 0x2) ? 0xcccccccc : 0}})) => 0;
|
||
|
|
lfs_deinit(&lfs) => 0;
|
||
|
|
|
||
|
|
// test that mount fails gracefully
|
||
|
|
lfs_mount(&lfs, &cfg) => LFS_ERR_CORRUPT;
|
||
|
|
'''
|
||
|
|
|
||
|
|
[[case]] # invalid dir pointer test
|
||
|
|
define.INVALSET = [0x3, 0x1, 0x2]
|
||
|
|
in = "lfs.c"
|
||
|
|
code = '''
|
||
|
|
// create littlefs
|
||
|
|
lfs_format(&lfs, &cfg) => 0;
|
||
|
|
// make a dir
|
||
|
|
lfs_mount(&lfs, &cfg) => 0;
|
||
|
|
lfs_mkdir(&lfs, "dir_here") => 0;
|
||
|
|
lfs_unmount(&lfs) => 0;
|
||
|
|
|
||
|
|
// change the dir pointer to be invalid
|
||
|
|
lfs_init(&lfs, &cfg) => 0;
|
||
|
|
lfs_mdir_t mdir;
|
||
|
|
lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
|
||
|
|
// make sure id 1 == our directory
|
||
|
|
lfs_dir_get(&lfs, &mdir,
|
||
|
|
LFS_MKTAG(0x700, 0x3ff, 0),
|
||
|
|
LFS_MKTAG(LFS_TYPE_NAME, 1, strlen("dir_here")), buffer)
|
||
|
|
=> LFS_MKTAG(LFS_TYPE_DIR, 1, strlen("dir_here"));
|
||
|
|
assert(memcmp((char*)buffer, "dir_here", strlen("dir_here")) == 0);
|
||
|
|
// change dir pointer
|
||
|
|
lfs_dir_commit(&lfs, &mdir, LFS_MKATTRS(
|
||
|
|
{LFS_MKTAG(LFS_TYPE_DIRSTRUCT, 1, 8),
|
||
|
|
(lfs_block_t[2]){
|
||
|
|
(INVALSET & 0x1) ? 0xcccccccc : 0,
|
||
|
|
(INVALSET & 0x2) ? 0xcccccccc : 0}})) => 0;
|
||
|
|
lfs_deinit(&lfs) => 0;
|
||
|
|
|
||
|
|
// test that accessing our bad dir fails, note there's a number
|
||
|
|
// of ways to access the dir, some can fail, but some don't
|
||
|
|
lfs_mount(&lfs, &cfg) => 0;
|
||
|
|
lfs_stat(&lfs, "dir_here", &info) => 0;
|
||
|
|
assert(strcmp(info.name, "dir_here") == 0);
|
||
|
|
assert(info.type == LFS_TYPE_DIR);
|
||
|
|
|
||
|
|
lfs_dir_open(&lfs, &dir, "dir_here") => LFS_ERR_CORRUPT;
|
||
|
|
lfs_stat(&lfs, "dir_here/file_here", &info) => LFS_ERR_CORRUPT;
|
||
|
|
lfs_dir_open(&lfs, &dir, "dir_here/dir_here") => LFS_ERR_CORRUPT;
|
||
|
|
lfs_file_open(&lfs, &file, "dir_here/file_here",
|
||
|
|
LFS_O_RDONLY) => LFS_ERR_CORRUPT;
|
||
|
|
lfs_file_open(&lfs, &file, "dir_here/file_here",
|
||
|
|
LFS_O_WRONLY | LFS_O_CREAT) => LFS_ERR_CORRUPT;
|
||
|
|
lfs_unmount(&lfs) => 0;
|
||
|
|
'''
|
||
|
|
|
||
|
|
[[case]] # invalid file pointer test
|
||
|
|
in = "lfs.c"
|
||
|
|
define.SIZE = [10, 1000, 100000] # faked file size
|
||
|
|
code = '''
|
||
|
|
// create littlefs
|
||
|
|
lfs_format(&lfs, &cfg) => 0;
|
||
|
|
// make a file
|
||
|
|
lfs_mount(&lfs, &cfg) => 0;
|
||
|
|
lfs_file_open(&lfs, &file, "file_here",
|
||
|
|
LFS_O_WRONLY | LFS_O_CREAT) => 0;
|
||
|
|
lfs_file_close(&lfs, &file) => 0;
|
||
|
|
lfs_unmount(&lfs) => 0;
|
||
|
|
|
||
|
|
// change the file pointer to be invalid
|
||
|
|
lfs_init(&lfs, &cfg) => 0;
|
||
|
|
lfs_mdir_t mdir;
|
||
|
|
lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
|
||
|
|
// make sure id 1 == our file
|
||
|
|
lfs_dir_get(&lfs, &mdir,
|
||
|
|
LFS_MKTAG(0x700, 0x3ff, 0),
|
||
|
|
LFS_MKTAG(LFS_TYPE_NAME, 1, strlen("file_here")), buffer)
|
||
|
|
=> LFS_MKTAG(LFS_TYPE_REG, 1, strlen("file_here"));
|
||
|
|
assert(memcmp((char*)buffer, "file_here", strlen("file_here")) == 0);
|
||
|
|
// change file pointer
|
||
|
|
lfs_dir_commit(&lfs, &mdir, LFS_MKATTRS(
|
||
|
|
{LFS_MKTAG(LFS_TYPE_CTZSTRUCT, 1, sizeof(struct lfs_ctz)),
|
||
|
|
&(struct lfs_ctz){0xcccccccc, lfs_tole32(SIZE)}})) => 0;
|
||
|
|
lfs_deinit(&lfs) => 0;
|
||
|
|
|
||
|
|
// test that accessing our bad file fails, note there's a number
|
||
|
|
// of ways to access the dir, some can fail, but some don't
|
||
|
|
lfs_mount(&lfs, &cfg) => 0;
|
||
|
|
lfs_stat(&lfs, "file_here", &info) => 0;
|
||
|
|
assert(strcmp(info.name, "file_here") == 0);
|
||
|
|
assert(info.type == LFS_TYPE_REG);
|
||
|
|
assert(info.size == SIZE);
|
||
|
|
|
||
|
|
lfs_file_open(&lfs, &file, "file_here", LFS_O_RDONLY) => 0;
|
||
|
|
lfs_file_read(&lfs, &file, buffer, SIZE) => LFS_ERR_CORRUPT;
|
||
|
|
lfs_file_close(&lfs, &file) => 0;
|
||
|
|
|
||
|
|
// any allocs that traverse CTZ must unfortunately must fail
|
||
|
|
if (SIZE > 2*LFS_BLOCK_SIZE) {
|
||
|
|
lfs_mkdir(&lfs, "dir_here") => LFS_ERR_CORRUPT;
|
||
|
|
}
|
||
|
|
lfs_unmount(&lfs) => 0;
|
||
|
|
'''
|
||
|
|
|
||
|
|
[[case]] # invalid pointer in CTZ skip-list test
|
||
|
|
define.SIZE = ['2*LFS_BLOCK_SIZE', '3*LFS_BLOCK_SIZE', '4*LFS_BLOCK_SIZE']
|
||
|
|
in = "lfs.c"
|
||
|
|
code = '''
|
||
|
|
// create littlefs
|
||
|
|
lfs_format(&lfs, &cfg) => 0;
|
||
|
|
// make a file
|
||
|
|
lfs_mount(&lfs, &cfg) => 0;
|
||
|
|
lfs_file_open(&lfs, &file, "file_here",
|
||
|
|
LFS_O_WRONLY | LFS_O_CREAT) => 0;
|
||
|
|
for (int i = 0; i < SIZE; i++) {
|
||
|
|
char c = 'c';
|
||
|
|
lfs_file_write(&lfs, &file, &c, 1) => 1;
|
||
|
|
}
|
||
|
|
lfs_file_close(&lfs, &file) => 0;
|
||
|
|
lfs_unmount(&lfs) => 0;
|
||
|
|
// change pointer in CTZ skip-list to be invalid
|
||
|
|
lfs_init(&lfs, &cfg) => 0;
|
||
|
|
lfs_mdir_t mdir;
|
||
|
|
lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
|
||
|
|
// make sure id 1 == our file and get our CTZ structure
|
||
|
|
lfs_dir_get(&lfs, &mdir,
|
||
|
|
LFS_MKTAG(0x700, 0x3ff, 0),
|
||
|
|
LFS_MKTAG(LFS_TYPE_NAME, 1, strlen("file_here")), buffer)
|
||
|
|
=> LFS_MKTAG(LFS_TYPE_REG, 1, strlen("file_here"));
|
||
|
|
assert(memcmp((char*)buffer, "file_here", strlen("file_here")) == 0);
|
||
|
|
struct lfs_ctz ctz;
|
||
|
|
lfs_dir_get(&lfs, &mdir,
|
||
|
|
LFS_MKTAG(0x700, 0x3ff, 0),
|
||
|
|
LFS_MKTAG(LFS_TYPE_STRUCT, 1, sizeof(struct lfs_ctz)), &ctz)
|
||
|
|
=> LFS_MKTAG(LFS_TYPE_CTZSTRUCT, 1, sizeof(struct lfs_ctz));
|
||
|
|
lfs_ctz_fromle32(&ctz);
|
||
|
|
// rewrite block to contain bad pointer
|
||
|
|
uint8_t bbuffer[LFS_BLOCK_SIZE];
|
||
|
|
cfg.read(&cfg, ctz.head, 0, bbuffer, LFS_BLOCK_SIZE) => 0;
|
||
|
|
uint32_t bad = lfs_tole32(0xcccccccc);
|
||
|
|
memcpy(&bbuffer[0], &bad, sizeof(bad));
|
||
|
|
memcpy(&bbuffer[4], &bad, sizeof(bad));
|
||
|
|
cfg.erase(&cfg, ctz.head) => 0;
|
||
|
|
cfg.prog(&cfg, ctz.head, 0, bbuffer, LFS_BLOCK_SIZE) => 0;
|
||
|
|
lfs_deinit(&lfs) => 0;
|
||
|
|
|
||
|
|
// test that accessing our bad file fails, note there's a number
|
||
|
|
// of ways to access the dir, some can fail, but some don't
|
||
|
|
lfs_mount(&lfs, &cfg) => 0;
|
||
|
|
lfs_stat(&lfs, "file_here", &info) => 0;
|
||
|
|
assert(strcmp(info.name, "file_here") == 0);
|
||
|
|
assert(info.type == LFS_TYPE_REG);
|
||
|
|
assert(info.size == SIZE);
|
||
|
|
|
||
|
|
lfs_file_open(&lfs, &file, "file_here", LFS_O_RDONLY) => 0;
|
||
|
|
lfs_file_read(&lfs, &file, buffer, SIZE) => LFS_ERR_CORRUPT;
|
||
|
|
lfs_file_close(&lfs, &file) => 0;
|
||
|
|
|
||
|
|
// any allocs that traverse CTZ must unfortunately must fail
|
||
|
|
if (SIZE > 2*LFS_BLOCK_SIZE) {
|
||
|
|
lfs_mkdir(&lfs, "dir_here") => LFS_ERR_CORRUPT;
|
||
|
|
}
|
||
|
|
lfs_unmount(&lfs) => 0;
|
||
|
|
'''
|
||
|
|
|
||
|
|
|
||
|
|
[[case]] # invalid gstate pointer
|
||
|
|
define.INVALSET = [0x3, 0x1, 0x2]
|
||
|
|
in = "lfs.c"
|
||
|
|
code = '''
|
||
|
|
// create littlefs
|
||
|
|
lfs_format(&lfs, &cfg) => 0;
|
||
|
|
|
||
|
|
// create an invalid gstate
|
||
|
|
lfs_init(&lfs, &cfg) => 0;
|
||
|
|
lfs_mdir_t mdir;
|
||
|
|
lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
|
||
|
|
lfs_fs_prepmove(&lfs, 1, (lfs_block_t [2]){
|
||
|
|
(INVALSET & 0x1) ? 0xcccccccc : 0,
|
||
|
|
(INVALSET & 0x2) ? 0xcccccccc : 0});
|
||
|
|
lfs_dir_commit(&lfs, &mdir, NULL, 0) => 0;
|
||
|
|
lfs_deinit(&lfs) => 0;
|
||
|
|
|
||
|
|
// test that mount fails gracefully
|
||
|
|
// mount may not fail, but our first alloc should fail when
|
||
|
|
// we try to fix the gstate
|
||
|
|
lfs_mount(&lfs, &cfg) => 0;
|
||
|
|
lfs_mkdir(&lfs, "should_fail") => LFS_ERR_CORRUPT;
|
||
|
|
lfs_unmount(&lfs) => 0;
|
||
|
|
'''
|
||
|
|
|
||
|
|
# cycle detection/recovery tests
|
||
|
|
|
||
|
|
[[case]] # metadata-pair threaded-list loop test
|
||
|
|
in = "lfs.c"
|
||
|
|
code = '''
|
||
|
|
// create littlefs
|
||
|
|
lfs_format(&lfs, &cfg) => 0;
|
||
|
|
|
||
|
|
// change tail-pointer to point to ourself
|
||
|
|
lfs_init(&lfs, &cfg) => 0;
|
||
|
|
lfs_mdir_t mdir;
|
||
|
|
lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
|
||
|
|
lfs_dir_commit(&lfs, &mdir, LFS_MKATTRS(
|
||
|
|
{LFS_MKTAG(LFS_TYPE_HARDTAIL, 0x3ff, 8),
|
||
|
|
(lfs_block_t[2]){0, 1}})) => 0;
|
||
|
|
lfs_deinit(&lfs) => 0;
|
||
|
|
|
||
|
|
// test that mount fails gracefully
|
||
|
|
lfs_mount(&lfs, &cfg) => LFS_ERR_CORRUPT;
|
||
|
|
'''
|
||
|
|
|
||
|
|
[[case]] # metadata-pair threaded-list 2-length loop test
|
||
|
|
in = "lfs.c"
|
||
|
|
code = '''
|
||
|
|
// create littlefs with child dir
|
||
|
|
lfs_format(&lfs, &cfg) => 0;
|
||
|
|
lfs_mount(&lfs, &cfg) => 0;
|
||
|
|
lfs_mkdir(&lfs, "child") => 0;
|
||
|
|
lfs_unmount(&lfs) => 0;
|
||
|
|
|
||
|
|
// find child
|
||
|
|
lfs_init(&lfs, &cfg) => 0;
|
||
|
|
lfs_mdir_t mdir;
|
||
|
|
lfs_block_t pair[2];
|
||
|
|
lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
|
||
|
|
lfs_dir_get(&lfs, &mdir,
|
||
|
|
LFS_MKTAG(0x7ff, 0x3ff, 0),
|
||
|
|
LFS_MKTAG(LFS_TYPE_DIRSTRUCT, 1, sizeof(pair)), pair)
|
||
|
|
=> LFS_MKTAG(LFS_TYPE_DIRSTRUCT, 1, sizeof(pair));
|
||
|
|
lfs_pair_fromle32(pair);
|
||
|
|
// change tail-pointer to point to root
|
||
|
|
lfs_dir_fetch(&lfs, &mdir, pair) => 0;
|
||
|
|
lfs_dir_commit(&lfs, &mdir, LFS_MKATTRS(
|
||
|
|
{LFS_MKTAG(LFS_TYPE_HARDTAIL, 0x3ff, 8),
|
||
|
|
(lfs_block_t[2]){0, 1}})) => 0;
|
||
|
|
lfs_deinit(&lfs) => 0;
|
||
|
|
|
||
|
|
// test that mount fails gracefully
|
||
|
|
lfs_mount(&lfs, &cfg) => LFS_ERR_CORRUPT;
|
||
|
|
'''
|
||
|
|
|
||
|
|
[[case]] # metadata-pair threaded-list 1-length child loop test
|
||
|
|
in = "lfs.c"
|
||
|
|
code = '''
|
||
|
|
// create littlefs with child dir
|
||
|
|
lfs_format(&lfs, &cfg) => 0;
|
||
|
|
lfs_mount(&lfs, &cfg) => 0;
|
||
|
|
lfs_mkdir(&lfs, "child") => 0;
|
||
|
|
lfs_unmount(&lfs) => 0;
|
||
|
|
|
||
|
|
// find child
|
||
|
|
lfs_init(&lfs, &cfg) => 0;
|
||
|
|
lfs_mdir_t mdir;
|
||
|
|
lfs_block_t pair[2];
|
||
|
|
lfs_dir_fetch(&lfs, &mdir, (lfs_block_t[2]){0, 1}) => 0;
|
||
|
|
lfs_dir_get(&lfs, &mdir,
|
||
|
|
LFS_MKTAG(0x7ff, 0x3ff, 0),
|
||
|
|
LFS_MKTAG(LFS_TYPE_DIRSTRUCT, 1, sizeof(pair)), pair)
|
||
|
|
=> LFS_MKTAG(LFS_TYPE_DIRSTRUCT, 1, sizeof(pair));
|
||
|
|
lfs_pair_fromle32(pair);
|
||
|
|
// change tail-pointer to point to ourself
|
||
|
|
lfs_dir_fetch(&lfs, &mdir, pair) => 0;
|
||
|
|
lfs_dir_commit(&lfs, &mdir, LFS_MKATTRS(
|
||
|
|
{LFS_MKTAG(LFS_TYPE_HARDTAIL, 0x3ff, 8), pair})) => 0;
|
||
|
|
lfs_deinit(&lfs) => 0;
|
||
|
|
|
||
|
|
// test that mount fails gracefully
|
||
|
|
lfs_mount(&lfs, &cfg) => LFS_ERR_CORRUPT;
|
||
|
|
'''
|