Christopher Haster
4fc03f95a7
The main reason for this change is to allow keeping track of existing
known-free blocks while trying to find more free blocks. This makes it
so failed filesystem traversals don't result in negative progress, which
is nice.
This was difficult in the previous lookahead scheme, since we we'd need
to shift the lookahead buffer to keep off=0 rooted at the first bit.
Shifting bytes is relatively easily with memmove, but it gets tricky
when shifting bits:
lookahead before: ???? ???? ???? ??00 1101 0101 00?? ????
^ ^
off off+size
shift: 0011 0101 0100 ???? ???? ???? ???? ????
^ ^
off off+size
traverse: 0011 0101 0100 0000 0000 0000 1100 0000
^ ^
off off+size
Instead, we now just let the lookahead buffer wrap around. No shifting
required:
lookahead before: ???? ???? ???? ??00 1101 0101 00?? ????
^ ^
off off+size
traverse: 0000 0000 1100 0000 1101 0101 0000 0000
^
off
^
off+size
This gets a bit confusing with the lookahead window also wrapping around
disk, but the math works out with enough modulos (if modulos are too
expensive, we should eventually be able to optimize these into simple
bit masks via compile-time config).
In the future, if we move away from the const config struct, it would
also be nice to try to reducing the number of modulos by storing the
lookahead buffer size in bits instead of bytes...
Note that if the lookahead buffer is larger than disk, the lookahead
window will sort of travel around the underlying buffer. This isn't
inherently a problem, but it did cause some bugs.
To avoid similar bit-related problems with zeroing, lfs_alloc_inc now
also zeros bits as we allocate/skip them, so bits should always be zero
when we start a lookahead traversal. Though note we still need to
manually memset the buffer when discarding lookahead state in init/grow.
---
The end result is surprisingly a net savings in terms of code size. I
guess mainly due to dropping all the lfs_alloc_shift calls:
code stack
before: 36472 2680
after: 36412 (-0.2%) 2680 (+0.0%)
5574 lines
186 KiB
TOML
5574 lines
186 KiB
TOML
# Bad-block related tests
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after = [
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'test_dirs',
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'test_files',
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'test_fwrite',
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'test_forphans',
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'test_traversal',
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'test_gc',
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'test_mount',
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]
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## Single badblock tests
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#
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# first test with every possible single badblock
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# B-tree's ridiculous branching factor is great for performance, but it makes
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# them a bit of a pain to test, here we test them explicitly
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[cases.test_badblocks_single_btree_many]
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defines.ERASE_CYCLES = 0xffffffff
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defines.BADBLOCK = -1
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defines.BADBLOCK_BEHAVIOR = [
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'LFS_EMUBD_BADBLOCK_PROGERROR',
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'LFS_EMUBD_BADBLOCK_ERASEERROR',
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'LFS_EMUBD_BADBLOCK_READERROR',
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'LFS_EMUBD_BADBLOCK_PROGNOOP',
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'LFS_EMUBD_BADBLOCK_ERASENOOP',
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]
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# we need prog checking to detect read errors
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defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
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defines.N = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512]
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# maximize lookahead buffer to avoid alloc scans
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defines.LOOKAHEAD_SIZE = 'lfs_alignup(BLOCK_COUNT / 8, 8)'
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defines.SEED = 42
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fuzz = 'SEED'
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in = 'lfs.c'
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code = '''
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// test all possible bad blocks
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for (lfs_size_t i = 0;
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i < ((BADBLOCK == -1) ? BLOCK_COUNT : 1);
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i++) {
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lfs_size_t badblock = (BADBLOCK == -1) ? i : BADBLOCK;
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// mark our badblock as bad
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lfs_emubd_setwear(CFG, badblock, 0xffffffff) => 0;
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printf("--- badblock: 0x%x ---\n", badblock);
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// test creating a btree
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lfs_t lfs;
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lfs_init(&lfs,
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LFS_M_RDWR
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| ((CKPROGS) ? LFS_M_CKPROGS : 0),
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CFG) => 0;
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// create free lookahead
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memset(lfs.lookahead.buffer, 0, CFG->lookahead_size);
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lfs.lookahead.window = 2;
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lfs.lookahead.off = 0;
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lfs.lookahead.size = lfs_min(8*CFG->lookahead_size,
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CFG->block_count-2);
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lfs_alloc_ckpoint(&lfs);
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// create a btree
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lfsr_btree_t btree = LFSR_BTREE_NULL();
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// set up a simulation to compare against
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char *sim = malloc(N);
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lfs_size_t sim_size = 0;
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memset(sim, 0, N);
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uint32_t prng = SEED;
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for (lfs_size_t i = 0; i < N; i++) {
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// choose a pseudo-random bid
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lfs_size_t bid = TEST_PRNG(&prng) % (sim_size+1);
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// add to btree
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lfsr_btree_commit(&lfs, &btree, bid, LFSR_ATTRS(
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LFSR_ATTR(
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LFSR_TAG_DATA, +1,
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LFSR_DATA_BUF(&(uint8_t){'a'+(i % 26)}, 1)))) => 0;
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// add to sim
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memmove(&sim[bid+1], &sim[bid], sim_size-bid);
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sim[bid] = 'a'+(i % 26);
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sim_size += 1;
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}
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// check that btree matches sim
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printf("expd: [");
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bool first = true;
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for (lfs_size_t i = 0; i < sim_size; i++) {
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if (!first) {
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printf(", ");
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}
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first = false;
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printf("%c", sim[i]);
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}
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printf("]\n");
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printf("btree: w%d 0x%x.%x\n",
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btree.weight,
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btree.blocks[0],
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btree.trunk);
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assert(btree.weight == sim_size);
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uint8_t buffer[4];
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lfsr_tag_t tag_;
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lfs_size_t weight_;
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lfsr_data_t data_;
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for (lfs_size_t i = 0; i < sim_size; i++) {
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lfsr_btree_lookup(&lfs, &btree, i,
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&tag_, &weight_, &data_) => 0;
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lfsr_data_read(&lfs, &data_, buffer, 4) => 1;
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assert(tag_ == LFSR_TAG_DATA);
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assert(weight_ == 1);
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assert(memcmp(buffer, &sim[i], 1) == 0);
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}
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// and no extra elements
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lfsr_btree_lookup(&lfs, &btree, sim_size,
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&tag_, &weight_, &data_) => LFS_ERR_NOENT;
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// clean up sim
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free(sim);
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lfs_deinit(&lfs) => 0;
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// reset badblock
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lfs_emubd_setwear(CFG, badblock, 0) => 0;
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}
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'''
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# with dirs
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[cases.test_badblocks_single_dir_many]
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defines.ERASE_CYCLES = 0xffffffff
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defines.BADBLOCK = -1
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defines.BADBLOCK_BEHAVIOR = [
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'LFS_EMUBD_BADBLOCK_PROGERROR',
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'LFS_EMUBD_BADBLOCK_ERASEERROR',
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'LFS_EMUBD_BADBLOCK_READERROR',
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'LFS_EMUBD_BADBLOCK_PROGNOOP',
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'LFS_EMUBD_BADBLOCK_ERASENOOP',
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]
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# we need prog checking to detect read errors
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defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
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defines.N = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512]
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code = '''
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// test all possible bad blocks
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for (lfs_size_t i = 2;
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i < ((BADBLOCK == -1) ? BLOCK_COUNT : 1);
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i++) {
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lfs_size_t badblock = (BADBLOCK == -1) ? i : BADBLOCK;
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// mark our badblock as bad
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lfs_emubd_setwear(CFG, badblock, 0xffffffff) => 0;
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printf("--- badblock: 0x%x ---\n", badblock);
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// test creating directories
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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lfsr_mount(&lfs,
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LFS_M_RDWR
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| ((CKPROGS) ? LFS_M_CKPROGS : 0),
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CFG) => 0;
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// make this many directories
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for (lfs_size_t i = 0; i < N; i++) {
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char name[256];
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sprintf(name, "dir%03x", i);
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int err = lfsr_mkdir(&lfs, name);
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assert(!err || (TEST_PLS && err == LFS_ERR_EXIST));
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}
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for (int remount = 0; remount < 2; remount++) {
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// remount?
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if (remount) {
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lfsr_unmount(&lfs) => 0;
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lfsr_mount(&lfs,
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LFS_M_RDWR
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| ((CKPROGS) ? LFS_M_CKPROGS : 0),
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CFG) => 0;
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}
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// grm should be zero here
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assert(lfs.grm_p[0] == 0);
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// check that our mkdir worked
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for (lfs_size_t i = 0; i < N; i++) {
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char name[256];
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sprintf(name, "dir%03x", i);
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struct lfs_info info;
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lfsr_stat(&lfs, name, &info) => 0;
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assert(strcmp(info.name, name) == 0);
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assert(info.type == LFS_TYPE_DIR);
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assert(info.size == 0);
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}
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lfsr_dir_t dir;
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lfsr_dir_open(&lfs, &dir, "/") => 0;
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struct lfs_info info;
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, ".") == 0);
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assert(info.type == LFS_TYPE_DIR);
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assert(info.size == 0);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "..") == 0);
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assert(info.type == LFS_TYPE_DIR);
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assert(info.size == 0);
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for (lfs_size_t i = 0; i < N; i++) {
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char name[256];
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sprintf(name, "dir%03x", i);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, name) == 0);
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assert(info.type == LFS_TYPE_DIR);
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assert(info.size == 0);
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}
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lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
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lfsr_dir_close(&lfs, &dir) => 0;
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for (lfs_size_t i = 0; i < N; i++) {
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char name[256];
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sprintf(name, "dir%03x", i);
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lfsr_dir_open(&lfs, &dir, name) => 0;
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, ".") == 0);
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assert(info.type == LFS_TYPE_DIR);
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assert(info.size == 0);
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lfsr_dir_read(&lfs, &dir, &info) => 0;
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assert(strcmp(info.name, "..") == 0);
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assert(info.type == LFS_TYPE_DIR);
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assert(info.size == 0);
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lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
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lfsr_dir_close(&lfs, &dir) => 0;
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}
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}
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lfsr_unmount(&lfs) => 0;
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// reset badblock
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lfs_emubd_setwear(CFG, badblock, 0) => 0;
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}
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'''
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# fuzz dirs
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[cases.test_badblocks_single_dir_fuzz]
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defines.ERASE_CYCLES = 0xffffffff
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defines.BADBLOCK = -1
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defines.BADBLOCK_BEHAVIOR = [
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'LFS_EMUBD_BADBLOCK_PROGERROR',
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'LFS_EMUBD_BADBLOCK_ERASEERROR',
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'LFS_EMUBD_BADBLOCK_READERROR',
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'LFS_EMUBD_BADBLOCK_PROGNOOP',
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'LFS_EMUBD_BADBLOCK_ERASENOOP',
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]
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# we need prog checking to detect read errors
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defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
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defines.N = [1, 2, 4, 8, 16, 32, 64, 128, 256]
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defines.OPS = '2*N'
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defines.SEED = 42
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fuzz = 'SEED'
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code = '''
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// test all possible bad blocks
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for (lfs_size_t i = 2;
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i < ((BADBLOCK == -1) ? BLOCK_COUNT : 1);
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i++) {
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lfs_size_t badblock = (BADBLOCK == -1) ? i : BADBLOCK;
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// mark our badblock as bad
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lfs_emubd_setwear(CFG, badblock, 0xffffffff) => 0;
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printf("--- badblock: 0x%x ---\n", badblock);
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// test fuzz with dirs
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lfs_t lfs;
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lfsr_format(&lfs, CFG) => 0;
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lfsr_mount(&lfs,
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LFS_M_RDWR
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| ((CKPROGS) ? LFS_M_CKPROGS : 0),
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CFG) => 0;
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// set up a simulation to compare against
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lfs_size_t *sim = malloc(N*sizeof(lfs_size_t));
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lfs_size_t sim_size = 0;
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uint32_t prng = SEED;
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for (lfs_size_t i = 0; i < OPS; i++) {
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// choose a pseudo-random op, either mkdir, remove, or rename
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uint8_t op = TEST_PRNG(&prng) % 3;
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if (op == 0 || sim_size == 0) {
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// choose a pseudo-random number, truncate to 3 hexadecimals
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lfs_size_t x = TEST_PRNG(&prng) % N;
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// insert into our sim
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for (lfs_size_t j = 0;; j++) {
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if (j >= sim_size || sim[j] >= x) {
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// already seen?
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if (j < sim_size && sim[j] == x) {
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// do nothing
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} else {
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// insert
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memmove(&sim[j+1], &sim[j],
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(sim_size-j)*sizeof(lfs_size_t));
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sim_size += 1;
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sim[j] = x;
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}
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break;
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}
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}
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// create a directory here
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char name[256];
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sprintf(name, "dir%03x", x);
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int err = lfsr_mkdir(&lfs, name);
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assert(!err || err == LFS_ERR_EXIST);
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} else if (op == 1) {
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// choose a pseudo-random entry to delete
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lfs_size_t j = TEST_PRNG(&prng) % sim_size;
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lfs_size_t x = sim[j];
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// delete from our sim
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memmove(&sim[j], &sim[j+1],
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(sim_size-(j+1))*sizeof(lfs_size_t));
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sim_size -= 1;
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// remove this directory
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char name[256];
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sprintf(name, "dir%03x", x);
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lfsr_remove(&lfs, name) => 0;
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} else {
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// choose a pseudo-random entry to rename, and a pseudo-random
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// number to rename to
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lfs_size_t j = TEST_PRNG(&prng) % sim_size;
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lfs_size_t x = sim[j];
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lfs_size_t y = TEST_PRNG(&prng) % N;
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for (lfs_size_t k = 0;; k++) {
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if (k >= sim_size || sim[k] >= y) {
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// already seen and not a noop?
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if (k < sim_size && sim[k] == y && x != y) {
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// just delete the original entry
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memmove(&sim[j], &sim[j+1],
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(sim_size-(j+1))*sizeof(lfs_size_t));
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sim_size -= 1;
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} else {
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// first delete
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memmove(&sim[j], &sim[j+1],
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(sim_size-(j+1))*sizeof(lfs_size_t));
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if (k > j) {
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k -= 1;
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}
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// then insert
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memmove(&sim[k+1], &sim[k],
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(sim_size-k)*sizeof(lfs_size_t));
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sim[k] = y;
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}
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break;
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}
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}
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// rename this directory
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char old_name[256];
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sprintf(old_name, "dir%03x", x);
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char new_name[256];
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sprintf(new_name, "dir%03x", y);
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lfsr_rename(&lfs, old_name, new_name) => 0;
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}
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}
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|
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for (int remount = 0; remount < 2; remount++) {
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// remount?
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if (remount) {
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lfsr_unmount(&lfs) => 0;
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lfsr_mount(&lfs,
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LFS_M_RDWR
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| ((CKPROGS) ? LFS_M_CKPROGS : 0),
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CFG) => 0;
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}
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|
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// grm should be zero here
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assert(lfs.grm_p[0] == 0);
|
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|
|
// test that our directories match our simulation
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for (lfs_size_t j = 0; j < sim_size; j++) {
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char name[256];
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sprintf(name, "dir%03x", sim[j]);
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struct lfs_info info;
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lfsr_stat(&lfs, name, &info) => 0;
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char name2[256];
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sprintf(name2, "dir%03x", sim[j]);
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assert(strcmp(info.name, name2) == 0);
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assert(info.type == LFS_TYPE_DIR);
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assert(info.size == 0);
|
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}
|
|
|
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lfsr_dir_t dir;
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lfsr_dir_open(&lfs, &dir, "/") => 0;
|
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struct lfs_info info;
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lfsr_dir_read(&lfs, &dir, &info) => 0;
|
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assert(strcmp(info.name, ".") == 0);
|
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assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
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lfsr_dir_read(&lfs, &dir, &info) => 0;
|
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assert(strcmp(info.name, "..") == 0);
|
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assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
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sprintf(name, "dir%03x", sim[j]);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
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assert(info.size == 0);
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
}
|
|
|
|
// clean up sim/lfs
|
|
free(sim);
|
|
lfsr_unmount(&lfs) => 0;
|
|
|
|
// reset badblock
|
|
lfs_emubd_setwear(CFG, badblock, 0) => 0;
|
|
}
|
|
'''
|
|
|
|
# with files
|
|
[cases.test_badblocks_single_file_many]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK = -1
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 32'
|
|
code = '''
|
|
// test all possible bad blocks
|
|
for (lfs_size_t i = 2;
|
|
i < ((BADBLOCK == -1) ? BLOCK_COUNT : 1);
|
|
i++) {
|
|
lfs_size_t badblock = (BADBLOCK == -1) ? i : BADBLOCK;
|
|
// mark our badblock as bad
|
|
lfs_emubd_setwear(CFG, badblock, 0xffffffff) => 0;
|
|
printf("--- badblock: 0x%x ---\n", badblock);
|
|
|
|
// test creating files
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// create this many files
|
|
uint32_t prng = 42;
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", i);
|
|
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name,
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// check that our writes worked
|
|
prng = 42;
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
// check with stat
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", i);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
|
|
// try reading the file, note we reset prng above
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
lfsr_file_t file;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
}
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
|
|
// reset badblock
|
|
lfs_emubd_setwear(CFG, badblock, 0) => 0;
|
|
}
|
|
'''
|
|
|
|
# fuzz files
|
|
[cases.test_badblocks_single_file_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK = -1
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.OPS = '2*N'
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 16'
|
|
code = '''
|
|
// test all possible bad blocks
|
|
for (lfs_size_t i = 2;
|
|
i < ((BADBLOCK == -1) ? BLOCK_COUNT : 1);
|
|
i++) {
|
|
lfs_size_t badblock = (BADBLOCK == -1) ? i : BADBLOCK;
|
|
// mark our badblock as bad
|
|
lfs_emubd_setwear(CFG, badblock, 0xffffffff) => 0;
|
|
printf("--- badblock: 0x%x ---\n", badblock);
|
|
|
|
// test fuzz with files
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// set up a simulation to compare against
|
|
lfs_size_t *sim = malloc(N*sizeof(lfs_size_t));
|
|
uint32_t *sim_prngs = malloc(N*sizeof(uint32_t));
|
|
lfs_size_t sim_size = 0;
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
// choose which operation to do
|
|
uint8_t op = TEST_PRNG(&prng) % 3;
|
|
|
|
// creating a new file?
|
|
if (op == 0 || sim_size == 0) {
|
|
// choose a pseudo-random number
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
// associate each file with a prng that generates its contents
|
|
uint32_t wprng = TEST_PRNG(&prng);
|
|
|
|
// insert into our sim
|
|
for (lfs_size_t j = 0;; j++) {
|
|
if (j >= sim_size || sim[j] >= x) {
|
|
// already seen?
|
|
if (j < sim_size && sim[j] == x) {
|
|
// new prng
|
|
sim_prngs[j] = wprng;
|
|
} else {
|
|
// insert
|
|
memmove(&sim[j+1], &sim[j],
|
|
(sim_size-j)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j+1], &sim_prngs[j],
|
|
(sim_size-j)*sizeof(uint32_t));
|
|
sim_size += 1;
|
|
sim[j] = x;
|
|
sim_prngs[j] = wprng;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// create a file here
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", x);
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name,
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
|
|
lfsr_file_write(&lfs, &file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// deleting a file?
|
|
} else if (op == 1) {
|
|
// choose a random file to delete
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
// delete from our sim
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
sim_size -= 1;
|
|
|
|
// delete this file
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", x);
|
|
lfsr_remove(&lfs, name) => 0;
|
|
|
|
// renaming a file?
|
|
} else {
|
|
// choose a random file to rename, and a random number to
|
|
// rename to
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
lfs_size_t y = TEST_PRNG(&prng) % N;
|
|
uint32_t wprng = sim_prngs[j];
|
|
|
|
// update our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= y) {
|
|
// renaming and replacing
|
|
if (k < sim_size && sim[k] == y && x != y) {
|
|
// delete the original entry
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
sim_size -= 1;
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// update the prng
|
|
sim_prngs[k] = wprng;
|
|
// just renaming
|
|
} else {
|
|
// first delete
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// then insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
sim[k] = y;
|
|
sim_prngs[k] = wprng;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// rename this file
|
|
char old_name[256];
|
|
sprintf(old_name, "amethyst%03x", x);
|
|
char new_name[256];
|
|
sprintf(new_name, "amethyst%03x", y);
|
|
lfsr_rename(&lfs, old_name, new_name) => 0;
|
|
}
|
|
}
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// check that our files match our simulation
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", sim[j]);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", sim[j]);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
// check the file contents
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", sim[j]);
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
|
|
|
|
uint32_t wprng = sim_prngs[j];
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
}
|
|
|
|
// clean up sim/lfs
|
|
free(sim);
|
|
free(sim_prngs);
|
|
lfsr_unmount(&lfs) => 0;
|
|
|
|
// reset badblock
|
|
lfs_emubd_setwear(CFG, badblock, 0) => 0;
|
|
}
|
|
'''
|
|
|
|
# with more complex file writes
|
|
[cases.test_badblocks_single_fwrite_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK = -1
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.OPS = 20
|
|
defines.SIZE = [
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
# chunk is more an upper limit here
|
|
defines.CHUNK = 64
|
|
# INIT=0 => no init
|
|
# INIT=1 => fill with data
|
|
# INIT=2 => truncate to size
|
|
defines.INIT = [0, 1, 2]
|
|
defines.SYNC = [false, true]
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
if = [
|
|
'CHUNK <= SIZE',
|
|
# this just saves testing time
|
|
'SIZE <= 4*1024*FRAGMENT_SIZE',
|
|
]
|
|
code = '''
|
|
// test all possible bad blocks
|
|
for (lfs_size_t i = 2;
|
|
i < ((BADBLOCK == -1) ? BLOCK_COUNT : 1);
|
|
i++) {
|
|
lfs_size_t badblock = (BADBLOCK == -1) ? i : BADBLOCK;
|
|
// mark our badblock as bad
|
|
lfs_emubd_setwear(CFG, badblock, 0xffffffff) => 0;
|
|
printf("--- badblock: 0x%x ---\n", badblock);
|
|
|
|
// test with complex file writes
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// create a file
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "hello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
// simulate our file in ram
|
|
uint8_t sim[SIZE];
|
|
lfs_off_t size;
|
|
uint32_t prng = SEED;
|
|
if (INIT == 0) {
|
|
memset(sim, 0, SIZE);
|
|
size = 0;
|
|
} else if (INIT == 1) {
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
sim[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &file, sim, SIZE) => SIZE;
|
|
size = SIZE;
|
|
} else {
|
|
memset(sim, 0, SIZE);
|
|
lfsr_file_truncate(&lfs, &file, SIZE) => 0;
|
|
size = SIZE;
|
|
}
|
|
|
|
// sync?
|
|
if (SYNC) {
|
|
lfsr_file_sync(&lfs, &file) => 0;
|
|
}
|
|
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
// choose a random location
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
// and a random size, up to the chunk size
|
|
lfs_size_t chunk = lfs_min(
|
|
TEST_PRNG(&prng) % CHUNK,
|
|
SIZE - off);
|
|
|
|
// update sim
|
|
for (lfs_size_t j = 0; j < chunk; j++) {
|
|
sim[off+j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
if (chunk != 0) {
|
|
size = lfs_max(size, off+chunk);
|
|
}
|
|
|
|
// update file
|
|
lfsr_file_seek(&lfs, &file, off, LFS_SEEK_SET) => off;
|
|
lfsr_file_write(&lfs, &file, &sim[off], chunk) => chunk;
|
|
|
|
// sync?
|
|
if (SYNC) {
|
|
lfsr_file_sync(&lfs, &file) => 0;
|
|
}
|
|
}
|
|
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// check our file with stat
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, "hello", &info) => 0;
|
|
assert(strcmp(info.name, "hello") == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == size);
|
|
|
|
// and with dir read
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "hello") == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == size);
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
// try reading our file
|
|
lfsr_file_open(&lfs, &file, "hello", LFS_O_RDONLY) => 0;
|
|
// is size correct?
|
|
lfsr_file_size(&lfs, &file) => size;
|
|
// try reading
|
|
uint8_t rbuf[2*SIZE];
|
|
memset(rbuf, 0xaa, 2*SIZE);
|
|
lfsr_file_read(&lfs, &file, rbuf, 2*SIZE) => size;
|
|
// does our file match our simulation?
|
|
assert(memcmp(rbuf, sim, size) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
|
|
// reset badblock
|
|
lfs_emubd_setwear(CFG, badblock, 0) => 0;
|
|
}
|
|
'''
|
|
|
|
# with orphans, zombies, etc
|
|
[cases.test_badblocks_single_orphanzombie_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK = -1
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.OPS = '2*N'
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 16'
|
|
code = '''
|
|
// test all possible bad blocks
|
|
for (lfs_size_t i = 2;
|
|
i < ((BADBLOCK == -1) ? BLOCK_COUNT : 1);
|
|
i++) {
|
|
lfs_size_t badblock = (BADBLOCK == -1) ? i : BADBLOCK;
|
|
// mark our badblock as bad
|
|
lfs_emubd_setwear(CFG, badblock, 0xffffffff) => 0;
|
|
printf("--- badblock: 0x%x ---\n", badblock);
|
|
|
|
// test with orphans, zombies, etc
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// set up a simulation to compare against
|
|
lfs_size_t *sim = malloc(N*sizeof(lfs_size_t));
|
|
uint32_t *sim_prngs = malloc(N*sizeof(uint32_t));
|
|
lfs_size_t sim_size = 0;
|
|
|
|
typedef struct sim_file {
|
|
lfs_size_t x;
|
|
bool orphan;
|
|
bool zombie;
|
|
uint32_t prng;
|
|
lfsr_file_t file;
|
|
} sim_file_t;
|
|
sim_file_t **sim_files = malloc(N*sizeof(sim_file_t*));
|
|
lfs_size_t sim_file_count = 0;
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
nonsense:;
|
|
// choose which operation to do
|
|
uint8_t op = TEST_PRNG(&prng) % 5;
|
|
|
|
// open a new file?
|
|
if (op == 0) {
|
|
if (sim_file_count >= N) {
|
|
goto nonsense;
|
|
}
|
|
// choose a pseudo-random number
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
|
|
// already exists?
|
|
bool orphan = true;
|
|
uint32_t wprng = 0;
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
if (sim[j] == x) {
|
|
orphan = false;
|
|
wprng = sim_prngs[j];
|
|
break;
|
|
}
|
|
}
|
|
// choose a random seed if we don't exist
|
|
if (orphan) {
|
|
wprng = TEST_PRNG(&prng);
|
|
}
|
|
|
|
// open in our sim
|
|
lfs_size_t j = sim_file_count;
|
|
sim_files[j] = malloc(sizeof(sim_file_t));
|
|
sim_files[j]->x = x;
|
|
sim_files[j]->orphan = orphan;
|
|
sim_files[j]->zombie = false;
|
|
sim_files[j]->prng = wprng;
|
|
sim_file_count++;
|
|
|
|
// open the actual file
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_file_open(&lfs, &sim_files[j]->file, name,
|
|
LFS_O_RDWR | LFS_O_CREAT) => 0;
|
|
|
|
// write some initial data if we don't exist
|
|
if (orphan) {
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t k = 0; k < SIZE; k++) {
|
|
wbuf[k] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE)
|
|
=> SIZE;
|
|
}
|
|
|
|
// write/rewrite a file?
|
|
} else if (op == 1) {
|
|
if (sim_file_count == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file handle
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_file_count;
|
|
lfs_size_t x = sim_files[j]->x;
|
|
// choose a random seed
|
|
uint32_t wprng = TEST_PRNG(&prng);
|
|
|
|
// update sim
|
|
sim_files[j]->prng = wprng;
|
|
if (!sim_files[j]->zombie) {
|
|
// insert into our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= x) {
|
|
// already seen?
|
|
if (k < sim_size && sim[k] == x) {
|
|
// new prng
|
|
sim_prngs[k] = wprng;
|
|
} else {
|
|
// insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
sim_size += 1;
|
|
sim[k] = x;
|
|
sim_prngs[k] = wprng;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// update related sim files
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x && !sim_files[k]->zombie) {
|
|
sim_files[k]->orphan = false;
|
|
sim_files[k]->prng = wprng;
|
|
}
|
|
}
|
|
}
|
|
|
|
// write to the file
|
|
lfsr_file_rewind(&lfs, &sim_files[j]->file) => 0;
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t k = 0; k < SIZE; k++) {
|
|
wbuf[k] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_sync(&lfs, &sim_files[j]->file)
|
|
=> (!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT;
|
|
|
|
// close a file?
|
|
} else if (op == 2) {
|
|
if (sim_file_count == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file handle
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_file_count;
|
|
|
|
// this doesn't really test anything, but if we don't close
|
|
// files eventually everything will end up zombies
|
|
|
|
// close the file without affected disk
|
|
lfsr_file_desync(&lfs, &sim_files[j]->file) => 0;
|
|
lfsr_file_close(&lfs, &sim_files[j]->file) => 0;
|
|
|
|
// remove from list
|
|
free(sim_files[j]);
|
|
sim_files[j] = sim_files[sim_file_count-1];
|
|
sim_file_count -= 1;
|
|
|
|
// remove a file?
|
|
} else if (op == 3) {
|
|
if (sim_size == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file to delete
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
|
|
// delete from our sim
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
sim_size -= 1;
|
|
|
|
// mark any related sim files as zombied
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// delete this file
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_remove(&lfs, name) => 0;
|
|
|
|
// rename a file?
|
|
} else if (op == 4) {
|
|
if (sim_size == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file to rename, and a random number to
|
|
// rename to
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
lfs_size_t y = TEST_PRNG(&prng) % N;
|
|
uint32_t wprng = sim_prngs[j];
|
|
|
|
// update our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= y) {
|
|
// renaming and replacing
|
|
if (k < sim_size && sim[k] == y && x != y) {
|
|
// delete the original entry
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
sim_size -= 1;
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// update the prng
|
|
sim_prngs[k] = wprng;
|
|
// just renaming
|
|
} else {
|
|
// first delete
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// then insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
sim[k] = y;
|
|
sim_prngs[k] = wprng;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// update any related sim files
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
// move source files
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->x = y;
|
|
|
|
// mark target files as zombied
|
|
} else if (sim_files[k]->x == y) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// rename this file
|
|
char old_name[256];
|
|
sprintf(old_name, "batman%03x", x);
|
|
char new_name[256];
|
|
sprintf(new_name, "batman%03x", y);
|
|
lfsr_rename(&lfs, old_name, new_name) => 0;
|
|
}
|
|
}
|
|
|
|
// check that disk matches our simulation
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
|
|
|
|
uint32_t wprng = sim_prngs[j];
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
|
|
// check that our file handles match our simulation
|
|
for (lfs_size_t j = 0; j < sim_file_count; j++) {
|
|
uint32_t wprng = sim_files[j]->prng;
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
lfsr_file_rewind(&lfs, &sim_files[j]->file) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &sim_files[j]->file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
}
|
|
|
|
// clean up sim/lfs
|
|
free(sim);
|
|
free(sim_prngs);
|
|
for (lfs_size_t j = 0; j < sim_file_count; j++) {
|
|
lfsr_file_close(&lfs, &sim_files[j]->file) => 0;
|
|
free(sim_files[j]);
|
|
}
|
|
free(sim_files);
|
|
lfsr_unmount(&lfs) => 0;
|
|
// reset badblock
|
|
lfs_emubd_setwear(CFG, badblock, 0) => 0;
|
|
}
|
|
'''
|
|
|
|
# with orphans, zombies, dirs, etc
|
|
[cases.test_badblocks_single_orphanzombiedir_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK = -1
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.OPS = '2*N'
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 16'
|
|
code = '''
|
|
// test all possible bad blocks
|
|
for (lfs_size_t i = 2;
|
|
i < ((BADBLOCK == -1) ? BLOCK_COUNT : 1);
|
|
i++) {
|
|
lfs_size_t badblock = (BADBLOCK == -1) ? i : BADBLOCK;
|
|
// mark our badblock as bad
|
|
lfs_emubd_setwear(CFG, badblock, 0xffffffff) => 0;
|
|
printf("--- badblock: 0x%x ---\n", badblock);
|
|
|
|
// test with orphans, zombies, dirs, etc
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// set up a simulation to compare against
|
|
lfs_size_t *sim = malloc(N*sizeof(lfs_size_t));
|
|
uint32_t *sim_prngs = malloc(N*sizeof(uint32_t));
|
|
bool *sim_isdirs = malloc(N*sizeof(bool));
|
|
lfs_size_t sim_size = 0;
|
|
|
|
typedef struct sim_file {
|
|
lfs_size_t x;
|
|
bool orphan;
|
|
bool zombie;
|
|
uint32_t prng;
|
|
lfsr_file_t file;
|
|
} sim_file_t;
|
|
sim_file_t **sim_files = malloc(N*sizeof(sim_file_t*));
|
|
lfs_size_t sim_file_count = 0;
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
nonsense:;
|
|
// choose which operation to do
|
|
uint8_t op = TEST_PRNG(&prng) % 8;
|
|
|
|
// open a new file?
|
|
if (op == 0) {
|
|
if (sim_file_count >= N) {
|
|
goto nonsense;
|
|
}
|
|
// choose a pseudo-random number
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
|
|
// already exists?
|
|
bool orphan = true;
|
|
uint32_t wprng = 0;
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
if (sim[j] == x) {
|
|
if (sim_isdirs[j]) {
|
|
goto nonsense;
|
|
}
|
|
orphan = false;
|
|
wprng = sim_prngs[j];
|
|
break;
|
|
}
|
|
}
|
|
// choose a random seed if we don't exist
|
|
if (orphan) {
|
|
wprng = TEST_PRNG(&prng);
|
|
}
|
|
|
|
// open in our sim
|
|
lfs_size_t j = sim_file_count;
|
|
sim_files[j] = malloc(sizeof(sim_file_t));
|
|
sim_files[j]->x = x;
|
|
sim_files[j]->orphan = orphan;
|
|
sim_files[j]->zombie = false;
|
|
sim_files[j]->prng = wprng;
|
|
sim_file_count++;
|
|
|
|
// open the actual file
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_file_open(&lfs, &sim_files[j]->file, name,
|
|
LFS_O_RDWR | LFS_O_CREAT) => 0;
|
|
|
|
// write some initial data if we don't exist
|
|
if (orphan) {
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t k = 0; k < SIZE; k++) {
|
|
wbuf[k] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE)
|
|
=> SIZE;
|
|
}
|
|
|
|
// write/rewrite a file?
|
|
} else if (op == 1) {
|
|
if (sim_file_count == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file handle
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_file_count;
|
|
lfs_size_t x = sim_files[j]->x;
|
|
// choose a random seed
|
|
uint32_t wprng = TEST_PRNG(&prng);
|
|
|
|
// update sim
|
|
sim_files[j]->prng = wprng;
|
|
if (!sim_files[j]->zombie) {
|
|
// insert into our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= x) {
|
|
// already seen?
|
|
if (k < sim_size && sim[k] == x) {
|
|
// new prng
|
|
sim_prngs[k] = wprng;
|
|
} else {
|
|
// insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[k+1], &sim_isdirs[k],
|
|
(sim_size-k)*sizeof(bool));
|
|
sim_size += 1;
|
|
sim[k] = x;
|
|
sim_prngs[k] = wprng;
|
|
sim_isdirs[k] = false;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// update related sim files
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x && !sim_files[k]->zombie) {
|
|
sim_files[k]->orphan = false;
|
|
sim_files[k]->prng = wprng;
|
|
}
|
|
}
|
|
}
|
|
|
|
// write to the file
|
|
lfsr_file_rewind(&lfs, &sim_files[j]->file) => 0;
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t k = 0; k < SIZE; k++) {
|
|
wbuf[k] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_sync(&lfs, &sim_files[j]->file)
|
|
=> (!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT;
|
|
|
|
// close a file?
|
|
} else if (op == 2) {
|
|
if (sim_file_count == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file handle
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_file_count;
|
|
|
|
// this doesn't really test anything, but if we don't close
|
|
// files eventually everything will end up zombies
|
|
|
|
// close the file without affected disk
|
|
lfsr_file_desync(&lfs, &sim_files[j]->file) => 0;
|
|
lfsr_file_close(&lfs, &sim_files[j]->file) => 0;
|
|
|
|
// remove from list
|
|
free(sim_files[j]);
|
|
sim_files[j] = sim_files[sim_file_count-1];
|
|
sim_file_count -= 1;
|
|
|
|
// remove a file?
|
|
} else if (op == 3) {
|
|
if (sim_size == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file to delete
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
|
|
// delete from our sim
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[j], &sim_isdirs[j+1],
|
|
(sim_size-(j+1))*sizeof(bool));
|
|
sim_size -= 1;
|
|
|
|
// mark any related sim files as zombied
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// delete this file
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_remove(&lfs, name) => 0;
|
|
|
|
// rename a file?
|
|
} else if (op == 4) {
|
|
if (sim_size == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file to rename, and a random number to
|
|
// rename to
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
lfs_size_t y = TEST_PRNG(&prng) % N;
|
|
uint32_t wprng = sim_prngs[j];
|
|
bool isdir = sim_isdirs[j];
|
|
|
|
// update our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= y) {
|
|
// renaming and replacing
|
|
if (k < sim_size && sim[k] == y && x != y) {
|
|
// type mismatch?
|
|
if (sim_isdirs[k] != isdir) {
|
|
goto nonsense;
|
|
}
|
|
|
|
// delete the original entry
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[j], &sim_isdirs[j+1],
|
|
(sim_size-(j+1))*sizeof(bool));
|
|
sim_size -= 1;
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// update the prng
|
|
sim_prngs[k] = wprng;
|
|
// just renaming
|
|
} else {
|
|
// first delete
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[j], &sim_isdirs[j+1],
|
|
(sim_size-(j+1))*sizeof(bool));
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// then insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[k+1], &sim_isdirs[k],
|
|
(sim_size-k)*sizeof(bool));
|
|
sim[k] = y;
|
|
sim_prngs[k] = wprng;
|
|
sim_isdirs[k] = isdir;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// update any related sim files
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
// move source files
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->x = y;
|
|
|
|
// mark target files as zombied
|
|
} else if (sim_files[k]->x == y) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// rename this file
|
|
char old_name[256];
|
|
sprintf(old_name, "batman%03x", x);
|
|
char new_name[256];
|
|
sprintf(new_name, "batman%03x", y);
|
|
lfsr_rename(&lfs, old_name, new_name) => 0;
|
|
|
|
// toss a directory into the mix
|
|
} else if (op == 5) {
|
|
// choose a pseudo-random number
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
|
|
// insert into our sim, use negative numbers for dirs
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= x) {
|
|
// already seen?
|
|
if (k < sim_size && sim[k] == x) {
|
|
goto nonsense;
|
|
} else {
|
|
// insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[k+1], &sim_isdirs[k],
|
|
(sim_size-k)*sizeof(bool));
|
|
sim_size += 1;
|
|
sim[k] = x;
|
|
sim_prngs[k] = 0;
|
|
sim_isdirs[k] = true;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// mark any related sim files as zombied
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// make the directory
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_mkdir(&lfs, name) => 0;
|
|
}
|
|
}
|
|
|
|
// check that disk matches our simulation
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
if (sim_isdirs[j]) {
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
} else {
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
if (sim_isdirs[j]) {
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
} else {
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
if (sim_isdirs[j]) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY)
|
|
=> LFS_ERR_ISDIR;
|
|
|
|
} else {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
|
|
|
|
uint32_t wprng = sim_prngs[j];
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
}
|
|
|
|
// check that our file handles match our simulation
|
|
for (lfs_size_t j = 0; j < sim_file_count; j++) {
|
|
uint32_t wprng = sim_files[j]->prng;
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
lfsr_file_rewind(&lfs, &sim_files[j]->file) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &sim_files[j]->file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
}
|
|
|
|
// clean up sim/lfs
|
|
free(sim);
|
|
free(sim_prngs);
|
|
for (lfs_size_t j = 0; j < sim_file_count; j++) {
|
|
lfsr_file_close(&lfs, &sim_files[j]->file) => 0;
|
|
free(sim_files[j]);
|
|
}
|
|
free(sim_files);
|
|
lfsr_unmount(&lfs) => 0;
|
|
|
|
// reset badblock
|
|
lfs_emubd_setwear(CFG, badblock, 0) => 0;
|
|
}
|
|
'''
|
|
|
|
|
|
|
|
## Badblock regions
|
|
#
|
|
# Test with a region of badblocks, this chould cause cascading failures,
|
|
# which can be tricky
|
|
|
|
# B-tree's ridiculous branching factor is great for performance, but it makes
|
|
# them a bit of a pain to test, here we test them explicitly
|
|
[cases.test_badblocks_region_btree_many]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512]
|
|
# maximize lookahead buffer to avoid alloc scans
|
|
defines.LOOKAHEAD_SIZE = 'lfs_alignup(BLOCK_COUNT / 8, 8)'
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
in = 'lfs.c'
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
lfs_emubd_setwear(CFG, i, 0xffffffff) => 0;
|
|
} else {
|
|
lfs_emubd_setwear(CFG, i + BLOCK_COUNT/2, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
|
|
// test creating a btree
|
|
lfs_t lfs;
|
|
lfs_init(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
// create free lookahead
|
|
memset(lfs.lookahead.buffer, 0, CFG->lookahead_size);
|
|
lfs.lookahead.window = 2;
|
|
lfs.lookahead.off = 0;
|
|
lfs.lookahead.size = lfs_min(8*CFG->lookahead_size,
|
|
CFG->block_count-2);
|
|
lfs_alloc_ckpoint(&lfs);
|
|
|
|
// create a btree
|
|
lfsr_btree_t btree = LFSR_BTREE_NULL();
|
|
|
|
// set up a simulation to compare against
|
|
char *sim = malloc(N);
|
|
lfs_size_t sim_size = 0;
|
|
memset(sim, 0, N);
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
// choose a pseudo-random bid
|
|
lfs_size_t bid = TEST_PRNG(&prng) % (sim_size+1);
|
|
|
|
// add to btree
|
|
lfsr_btree_commit(&lfs, &btree, bid, LFSR_ATTRS(
|
|
LFSR_ATTR(
|
|
LFSR_TAG_DATA, +1,
|
|
LFSR_DATA_BUF(&(uint8_t){'a'+(i % 26)}, 1)))) => 0;
|
|
|
|
// add to sim
|
|
memmove(&sim[bid+1], &sim[bid], sim_size-bid);
|
|
sim[bid] = 'a'+(i % 26);
|
|
sim_size += 1;
|
|
}
|
|
|
|
// check that btree matches sim
|
|
printf("expd: [");
|
|
bool first = true;
|
|
for (lfs_size_t i = 0; i < sim_size; i++) {
|
|
if (!first) {
|
|
printf(", ");
|
|
}
|
|
first = false;
|
|
printf("%c", sim[i]);
|
|
}
|
|
printf("]\n");
|
|
printf("btree: w%d 0x%x.%x\n",
|
|
btree.weight,
|
|
btree.blocks[0],
|
|
btree.trunk);
|
|
assert(btree.weight == sim_size);
|
|
|
|
uint8_t buffer[4];
|
|
lfsr_tag_t tag_;
|
|
lfs_size_t weight_;
|
|
lfsr_data_t data_;
|
|
for (lfs_size_t i = 0; i < sim_size; i++) {
|
|
lfsr_btree_lookup(&lfs, &btree, i,
|
|
&tag_, &weight_, &data_) => 0;
|
|
lfsr_data_read(&lfs, &data_, buffer, 4) => 1;
|
|
assert(tag_ == LFSR_TAG_DATA);
|
|
assert(weight_ == 1);
|
|
assert(memcmp(buffer, &sim[i], 1) == 0);
|
|
}
|
|
|
|
// and no extra elements
|
|
lfsr_btree_lookup(&lfs, &btree, sim_size,
|
|
&tag_, &weight_, &data_) => LFS_ERR_NOENT;
|
|
|
|
// clean up sim
|
|
free(sim);
|
|
lfs_deinit(&lfs) => 0;
|
|
'''
|
|
|
|
# with dirs
|
|
[cases.test_badblocks_region_dir_many]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64, 128, 256]
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (i >= 2) {
|
|
lfs_emubd_setwear(CFG, i, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (i+BLOCK_COUNT/2 >= 2) {
|
|
lfs_emubd_setwear(CFG, i+BLOCK_COUNT/2, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test creating directories
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// make this many directories
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "dir%03x", i);
|
|
int err = lfsr_mkdir(&lfs, name);
|
|
assert(!err || (TEST_PLS && err == LFS_ERR_EXIST));
|
|
}
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// grm should be zero here
|
|
assert(lfs.grm_p[0] == 0);
|
|
|
|
// check that our mkdir worked
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "dir%03x", i);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "dir%03x", i);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "dir%03x", i);
|
|
lfsr_dir_open(&lfs, &dir, name) => 0;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
}
|
|
}
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# fuzz dirs
|
|
[cases.test_badblocks_region_dir_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64, 128, 256]
|
|
defines.OPS = '2*N'
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (i >= 2) {
|
|
lfs_emubd_setwear(CFG, i, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (i+BLOCK_COUNT/2 >= 2) {
|
|
lfs_emubd_setwear(CFG, i+BLOCK_COUNT/2, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test fuzz with dirs
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// set up a simulation to compare against
|
|
lfs_size_t *sim = malloc(N*sizeof(lfs_size_t));
|
|
lfs_size_t sim_size = 0;
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
// choose a pseudo-random op, either mkdir, remove, or rename
|
|
uint8_t op = TEST_PRNG(&prng) % 3;
|
|
|
|
if (op == 0 || sim_size == 0) {
|
|
// choose a pseudo-random number, truncate to 3 hexadecimals
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
// insert into our sim
|
|
for (lfs_size_t j = 0;; j++) {
|
|
if (j >= sim_size || sim[j] >= x) {
|
|
// already seen?
|
|
if (j < sim_size && sim[j] == x) {
|
|
// do nothing
|
|
} else {
|
|
// insert
|
|
memmove(&sim[j+1], &sim[j],
|
|
(sim_size-j)*sizeof(lfs_size_t));
|
|
sim_size += 1;
|
|
sim[j] = x;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// create a directory here
|
|
char name[256];
|
|
sprintf(name, "dir%03x", x);
|
|
int err = lfsr_mkdir(&lfs, name);
|
|
assert(!err || err == LFS_ERR_EXIST);
|
|
|
|
} else if (op == 1) {
|
|
// choose a pseudo-random entry to delete
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
// delete from our sim
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
sim_size -= 1;
|
|
|
|
// remove this directory
|
|
char name[256];
|
|
sprintf(name, "dir%03x", x);
|
|
lfsr_remove(&lfs, name) => 0;
|
|
|
|
} else {
|
|
// choose a pseudo-random entry to rename, and a pseudo-random
|
|
// number to rename to
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
lfs_size_t y = TEST_PRNG(&prng) % N;
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= y) {
|
|
// already seen and not a noop?
|
|
if (k < sim_size && sim[k] == y && x != y) {
|
|
// just delete the original entry
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
sim_size -= 1;
|
|
} else {
|
|
// first delete
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// then insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
sim[k] = y;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// rename this directory
|
|
char old_name[256];
|
|
sprintf(old_name, "dir%03x", x);
|
|
char new_name[256];
|
|
sprintf(new_name, "dir%03x", y);
|
|
lfsr_rename(&lfs, old_name, new_name) => 0;
|
|
}
|
|
}
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// grm should be zero here
|
|
assert(lfs.grm_p[0] == 0);
|
|
|
|
// test that our directories match our simulation
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "dir%03x", sim[j]);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
char name2[256];
|
|
sprintf(name2, "dir%03x", sim[j]);
|
|
assert(strcmp(info.name, name2) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "dir%03x", sim[j]);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
}
|
|
|
|
// clean up sim/lfs
|
|
free(sim);
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# with files
|
|
[cases.test_badblocks_region_file_many]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 32'
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (i >= 2) {
|
|
lfs_emubd_setwear(CFG, i, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (i+BLOCK_COUNT/2 >= 2) {
|
|
lfs_emubd_setwear(CFG, i+BLOCK_COUNT/2, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test creating files
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// create this many files
|
|
uint32_t prng = 42;
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", i);
|
|
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name,
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// check that our writes worked
|
|
prng = 42;
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
// check with stat
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", i);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
|
|
// try reading the file, note we reset prng above
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
lfsr_file_t file;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
}
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# fuzz files
|
|
[cases.test_badblocks_region_file_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.OPS = '2*N'
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 16'
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (i >= 2) {
|
|
lfs_emubd_setwear(CFG, i, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (i+BLOCK_COUNT/2 >= 2) {
|
|
lfs_emubd_setwear(CFG, i+BLOCK_COUNT/2, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test fuzz with files
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// set up a simulation to compare against
|
|
lfs_size_t *sim = malloc(N*sizeof(lfs_size_t));
|
|
uint32_t *sim_prngs = malloc(N*sizeof(uint32_t));
|
|
lfs_size_t sim_size = 0;
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
// choose which operation to do
|
|
uint8_t op = TEST_PRNG(&prng) % 3;
|
|
|
|
// creating a new file?
|
|
if (op == 0 || sim_size == 0) {
|
|
// choose a pseudo-random number
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
// associate each file with a prng that generates its contents
|
|
uint32_t wprng = TEST_PRNG(&prng);
|
|
|
|
// insert into our sim
|
|
for (lfs_size_t j = 0;; j++) {
|
|
if (j >= sim_size || sim[j] >= x) {
|
|
// already seen?
|
|
if (j < sim_size && sim[j] == x) {
|
|
// new prng
|
|
sim_prngs[j] = wprng;
|
|
} else {
|
|
// insert
|
|
memmove(&sim[j+1], &sim[j],
|
|
(sim_size-j)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j+1], &sim_prngs[j],
|
|
(sim_size-j)*sizeof(uint32_t));
|
|
sim_size += 1;
|
|
sim[j] = x;
|
|
sim_prngs[j] = wprng;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// create a file here
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", x);
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name,
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
|
|
lfsr_file_write(&lfs, &file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// deleting a file?
|
|
} else if (op == 1) {
|
|
// choose a random file to delete
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
// delete from our sim
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
sim_size -= 1;
|
|
|
|
// delete this file
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", x);
|
|
lfsr_remove(&lfs, name) => 0;
|
|
|
|
// renaming a file?
|
|
} else {
|
|
// choose a random file to rename, and a random number to
|
|
// rename to
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
lfs_size_t y = TEST_PRNG(&prng) % N;
|
|
uint32_t wprng = sim_prngs[j];
|
|
|
|
// update our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= y) {
|
|
// renaming and replacing
|
|
if (k < sim_size && sim[k] == y && x != y) {
|
|
// delete the original entry
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
sim_size -= 1;
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// update the prng
|
|
sim_prngs[k] = wprng;
|
|
// just renaming
|
|
} else {
|
|
// first delete
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// then insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
sim[k] = y;
|
|
sim_prngs[k] = wprng;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// rename this file
|
|
char old_name[256];
|
|
sprintf(old_name, "amethyst%03x", x);
|
|
char new_name[256];
|
|
sprintf(new_name, "amethyst%03x", y);
|
|
lfsr_rename(&lfs, old_name, new_name) => 0;
|
|
}
|
|
}
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// check that our files match our simulation
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", sim[j]);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", sim[j]);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
// check the file contents
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", sim[j]);
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
|
|
|
|
uint32_t wprng = sim_prngs[j];
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
}
|
|
|
|
// clean up sim/lfs
|
|
free(sim);
|
|
free(sim_prngs);
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# with more complex file writes
|
|
[cases.test_badblocks_region_fwrite_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.OPS = 20
|
|
defines.SIZE = [
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
# chunk is more an upper limit here
|
|
defines.CHUNK = [32, 8, 1]
|
|
# INIT=0 => no init
|
|
# INIT=1 => fill with data
|
|
# INIT=2 => truncate to size
|
|
defines.INIT = [0, 1, 2]
|
|
defines.SYNC = [false, true]
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
if = [
|
|
'CHUNK <= SIZE',
|
|
# this just saves testing time
|
|
'SIZE <= 4*1024*FRAGMENT_SIZE',
|
|
]
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (i >= 2) {
|
|
lfs_emubd_setwear(CFG, i, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (i+BLOCK_COUNT/2 >= 2) {
|
|
lfs_emubd_setwear(CFG, i+BLOCK_COUNT/2, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test with complex file writes
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// create a file
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "hello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
// simulate our file in ram
|
|
uint8_t sim[SIZE];
|
|
lfs_off_t size;
|
|
uint32_t prng = SEED;
|
|
if (INIT == 0) {
|
|
memset(sim, 0, SIZE);
|
|
size = 0;
|
|
} else if (INIT == 1) {
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
sim[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &file, sim, SIZE) => SIZE;
|
|
size = SIZE;
|
|
} else {
|
|
memset(sim, 0, SIZE);
|
|
lfsr_file_truncate(&lfs, &file, SIZE) => 0;
|
|
size = SIZE;
|
|
}
|
|
|
|
// sync?
|
|
if (SYNC) {
|
|
lfsr_file_sync(&lfs, &file) => 0;
|
|
}
|
|
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
// choose a random location
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
// and a random size, up to the chunk size
|
|
lfs_size_t chunk = lfs_min(
|
|
TEST_PRNG(&prng) % CHUNK,
|
|
SIZE - off);
|
|
|
|
// update sim
|
|
for (lfs_size_t j = 0; j < chunk; j++) {
|
|
sim[off+j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
if (chunk != 0) {
|
|
size = lfs_max(size, off+chunk);
|
|
}
|
|
|
|
// update file
|
|
lfsr_file_seek(&lfs, &file, off, LFS_SEEK_SET) => off;
|
|
lfsr_file_write(&lfs, &file, &sim[off], chunk) => chunk;
|
|
|
|
// sync?
|
|
if (SYNC) {
|
|
lfsr_file_sync(&lfs, &file) => 0;
|
|
}
|
|
}
|
|
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// check our file with stat
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, "hello", &info) => 0;
|
|
assert(strcmp(info.name, "hello") == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == size);
|
|
|
|
// and with dir read
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "hello") == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == size);
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
// try reading our file
|
|
lfsr_file_open(&lfs, &file, "hello", LFS_O_RDONLY) => 0;
|
|
// is size correct?
|
|
lfsr_file_size(&lfs, &file) => size;
|
|
// try reading
|
|
uint8_t rbuf[2*SIZE];
|
|
memset(rbuf, 0xaa, 2*SIZE);
|
|
lfsr_file_read(&lfs, &file, rbuf, 2*SIZE) => size;
|
|
// does our file match our simulation?
|
|
assert(memcmp(rbuf, sim, size) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# with orphans, zombies, etc
|
|
[cases.test_badblocks_region_orphanzombie_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.OPS = '2*N'
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 16'
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (i >= 2) {
|
|
lfs_emubd_setwear(CFG, i, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (i+BLOCK_COUNT/2 >= 2) {
|
|
lfs_emubd_setwear(CFG, i+BLOCK_COUNT/2, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test with orphans, zombies, etc
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// set up a simulation to compare against
|
|
lfs_size_t *sim = malloc(N*sizeof(lfs_size_t));
|
|
uint32_t *sim_prngs = malloc(N*sizeof(uint32_t));
|
|
lfs_size_t sim_size = 0;
|
|
|
|
typedef struct sim_file {
|
|
lfs_size_t x;
|
|
bool orphan;
|
|
bool zombie;
|
|
uint32_t prng;
|
|
lfsr_file_t file;
|
|
} sim_file_t;
|
|
sim_file_t **sim_files = malloc(N*sizeof(sim_file_t*));
|
|
lfs_size_t sim_file_count = 0;
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
nonsense:;
|
|
// choose which operation to do
|
|
uint8_t op = TEST_PRNG(&prng) % 5;
|
|
|
|
// open a new file?
|
|
if (op == 0) {
|
|
if (sim_file_count >= N) {
|
|
goto nonsense;
|
|
}
|
|
// choose a pseudo-random number
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
|
|
// already exists?
|
|
bool orphan = true;
|
|
uint32_t wprng = 0;
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
if (sim[j] == x) {
|
|
orphan = false;
|
|
wprng = sim_prngs[j];
|
|
break;
|
|
}
|
|
}
|
|
// choose a random seed if we don't exist
|
|
if (orphan) {
|
|
wprng = TEST_PRNG(&prng);
|
|
}
|
|
|
|
// open in our sim
|
|
lfs_size_t j = sim_file_count;
|
|
sim_files[j] = malloc(sizeof(sim_file_t));
|
|
sim_files[j]->x = x;
|
|
sim_files[j]->orphan = orphan;
|
|
sim_files[j]->zombie = false;
|
|
sim_files[j]->prng = wprng;
|
|
sim_file_count++;
|
|
|
|
// open the actual file
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_file_open(&lfs, &sim_files[j]->file, name,
|
|
LFS_O_RDWR | LFS_O_CREAT) => 0;
|
|
|
|
// write some initial data if we don't exist
|
|
if (orphan) {
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t k = 0; k < SIZE; k++) {
|
|
wbuf[k] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
|
|
}
|
|
|
|
// write/rewrite a file?
|
|
} else if (op == 1) {
|
|
if (sim_file_count == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file handle
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_file_count;
|
|
lfs_size_t x = sim_files[j]->x;
|
|
// choose a random seed
|
|
uint32_t wprng = TEST_PRNG(&prng);
|
|
|
|
// update sim
|
|
sim_files[j]->prng = wprng;
|
|
if (!sim_files[j]->zombie) {
|
|
// insert into our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= x) {
|
|
// already seen?
|
|
if (k < sim_size && sim[k] == x) {
|
|
// new prng
|
|
sim_prngs[k] = wprng;
|
|
} else {
|
|
// insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
sim_size += 1;
|
|
sim[k] = x;
|
|
sim_prngs[k] = wprng;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// update related sim files
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x && !sim_files[k]->zombie) {
|
|
sim_files[k]->orphan = false;
|
|
sim_files[k]->prng = wprng;
|
|
}
|
|
}
|
|
}
|
|
|
|
// write to the file
|
|
lfsr_file_rewind(&lfs, &sim_files[j]->file) => 0;
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t k = 0; k < SIZE; k++) {
|
|
wbuf[k] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_sync(&lfs, &sim_files[j]->file)
|
|
=> (!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT;
|
|
|
|
// close a file?
|
|
} else if (op == 2) {
|
|
if (sim_file_count == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file handle
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_file_count;
|
|
|
|
// this doesn't really test anything, but if we don't close
|
|
// files eventually everything will end up zombies
|
|
|
|
// close the file without affected disk
|
|
lfsr_file_desync(&lfs, &sim_files[j]->file) => 0;
|
|
lfsr_file_close(&lfs, &sim_files[j]->file) => 0;
|
|
|
|
// remove from list
|
|
free(sim_files[j]);
|
|
sim_files[j] = sim_files[sim_file_count-1];
|
|
sim_file_count -= 1;
|
|
|
|
// remove a file?
|
|
} else if (op == 3) {
|
|
if (sim_size == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file to delete
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
|
|
// delete from our sim
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
sim_size -= 1;
|
|
|
|
// mark any related sim files as zombied
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// delete this file
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_remove(&lfs, name) => 0;
|
|
|
|
// rename a file?
|
|
} else if (op == 4) {
|
|
if (sim_size == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file to rename, and a random number to
|
|
// rename to
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
lfs_size_t y = TEST_PRNG(&prng) % N;
|
|
uint32_t wprng = sim_prngs[j];
|
|
|
|
// update our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= y) {
|
|
// renaming and replacing
|
|
if (k < sim_size && sim[k] == y && x != y) {
|
|
// delete the original entry
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
sim_size -= 1;
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// update the prng
|
|
sim_prngs[k] = wprng;
|
|
// just renaming
|
|
} else {
|
|
// first delete
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// then insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
sim[k] = y;
|
|
sim_prngs[k] = wprng;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// update any related sim files
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
// move source files
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->x = y;
|
|
|
|
// mark target files as zombied
|
|
} else if (sim_files[k]->x == y) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// rename this file
|
|
char old_name[256];
|
|
sprintf(old_name, "batman%03x", x);
|
|
char new_name[256];
|
|
sprintf(new_name, "batman%03x", y);
|
|
lfsr_rename(&lfs, old_name, new_name) => 0;
|
|
}
|
|
}
|
|
|
|
// check that disk matches our simulation
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
|
|
|
|
uint32_t wprng = sim_prngs[j];
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
|
|
// check that our file handles match our simulation
|
|
for (lfs_size_t j = 0; j < sim_file_count; j++) {
|
|
uint32_t wprng = sim_files[j]->prng;
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
lfsr_file_rewind(&lfs, &sim_files[j]->file) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &sim_files[j]->file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
}
|
|
|
|
// clean up sim/lfs
|
|
free(sim);
|
|
free(sim_prngs);
|
|
for (lfs_size_t j = 0; j < sim_file_count; j++) {
|
|
lfsr_file_close(&lfs, &sim_files[j]->file) => 0;
|
|
free(sim_files[j]);
|
|
}
|
|
free(sim_files);
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# with orphans, zombies, dirs, etc
|
|
[cases.test_badblocks_region_orphanzombiedir_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.OPS = '2*N'
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 16'
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (i >= 2) {
|
|
lfs_emubd_setwear(CFG, i, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (i+BLOCK_COUNT/2 >= 2) {
|
|
lfs_emubd_setwear(CFG, i+BLOCK_COUNT/2, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test with orphans, zombies, dirs, etc
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// set up a simulation to compare against
|
|
lfs_size_t *sim = malloc(N*sizeof(lfs_size_t));
|
|
uint32_t *sim_prngs = malloc(N*sizeof(uint32_t));
|
|
bool *sim_isdirs = malloc(N*sizeof(bool));
|
|
lfs_size_t sim_size = 0;
|
|
|
|
typedef struct sim_file {
|
|
lfs_size_t x;
|
|
bool orphan;
|
|
bool zombie;
|
|
uint32_t prng;
|
|
lfsr_file_t file;
|
|
} sim_file_t;
|
|
sim_file_t **sim_files = malloc(N*sizeof(sim_file_t*));
|
|
lfs_size_t sim_file_count = 0;
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
nonsense:;
|
|
// choose which operation to do
|
|
uint8_t op = TEST_PRNG(&prng) % 8;
|
|
|
|
// open a new file?
|
|
if (op == 0) {
|
|
if (sim_file_count >= N) {
|
|
goto nonsense;
|
|
}
|
|
// choose a pseudo-random number
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
|
|
// already exists?
|
|
bool orphan = true;
|
|
uint32_t wprng = 0;
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
if (sim[j] == x) {
|
|
if (sim_isdirs[j]) {
|
|
goto nonsense;
|
|
}
|
|
orphan = false;
|
|
wprng = sim_prngs[j];
|
|
break;
|
|
}
|
|
}
|
|
// choose a random seed if we don't exist
|
|
if (orphan) {
|
|
wprng = TEST_PRNG(&prng);
|
|
}
|
|
|
|
// open in our sim
|
|
lfs_size_t j = sim_file_count;
|
|
sim_files[j] = malloc(sizeof(sim_file_t));
|
|
sim_files[j]->x = x;
|
|
sim_files[j]->orphan = orphan;
|
|
sim_files[j]->zombie = false;
|
|
sim_files[j]->prng = wprng;
|
|
sim_file_count++;
|
|
|
|
// open the actual file
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_file_open(&lfs, &sim_files[j]->file, name,
|
|
LFS_O_RDWR | LFS_O_CREAT) => 0;
|
|
|
|
// write some initial data if we don't exist
|
|
if (orphan) {
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t k = 0; k < SIZE; k++) {
|
|
wbuf[k] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
|
|
}
|
|
|
|
// write/rewrite a file?
|
|
} else if (op == 1) {
|
|
if (sim_file_count == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file handle
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_file_count;
|
|
lfs_size_t x = sim_files[j]->x;
|
|
// choose a random seed
|
|
uint32_t wprng = TEST_PRNG(&prng);
|
|
|
|
// update sim
|
|
sim_files[j]->prng = wprng;
|
|
if (!sim_files[j]->zombie) {
|
|
// insert into our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= x) {
|
|
// already seen?
|
|
if (k < sim_size && sim[k] == x) {
|
|
// new prng
|
|
sim_prngs[k] = wprng;
|
|
} else {
|
|
// insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[k+1], &sim_isdirs[k],
|
|
(sim_size-k)*sizeof(bool));
|
|
sim_size += 1;
|
|
sim[k] = x;
|
|
sim_prngs[k] = wprng;
|
|
sim_isdirs[k] = false;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// update related sim files
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x && !sim_files[k]->zombie) {
|
|
sim_files[k]->orphan = false;
|
|
sim_files[k]->prng = wprng;
|
|
}
|
|
}
|
|
}
|
|
|
|
// write to the file
|
|
lfsr_file_rewind(&lfs, &sim_files[j]->file) => 0;
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t k = 0; k < SIZE; k++) {
|
|
wbuf[k] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_sync(&lfs, &sim_files[j]->file)
|
|
=> (!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT;
|
|
|
|
// close a file?
|
|
} else if (op == 2) {
|
|
if (sim_file_count == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file handle
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_file_count;
|
|
|
|
// this doesn't really test anything, but if we don't close
|
|
// files eventually everything will end up zombies
|
|
|
|
// close the file without affected disk
|
|
lfsr_file_desync(&lfs, &sim_files[j]->file) => 0;
|
|
lfsr_file_close(&lfs, &sim_files[j]->file) => 0;
|
|
|
|
// remove from list
|
|
free(sim_files[j]);
|
|
sim_files[j] = sim_files[sim_file_count-1];
|
|
sim_file_count -= 1;
|
|
|
|
// remove a file?
|
|
} else if (op == 3) {
|
|
if (sim_size == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file to delete
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
|
|
// delete from our sim
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[j], &sim_isdirs[j+1],
|
|
(sim_size-(j+1))*sizeof(bool));
|
|
sim_size -= 1;
|
|
|
|
// mark any related sim files as zombied
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// delete this file
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_remove(&lfs, name) => 0;
|
|
|
|
// rename a file?
|
|
} else if (op == 4) {
|
|
if (sim_size == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file to rename, and a random number to
|
|
// rename to
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
lfs_size_t y = TEST_PRNG(&prng) % N;
|
|
uint32_t wprng = sim_prngs[j];
|
|
bool isdir = sim_isdirs[j];
|
|
|
|
// update our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= y) {
|
|
// renaming and replacing
|
|
if (k < sim_size && sim[k] == y && x != y) {
|
|
// type mismatch?
|
|
if (sim_isdirs[k] != isdir) {
|
|
goto nonsense;
|
|
}
|
|
|
|
// delete the original entry
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[j], &sim_isdirs[j+1],
|
|
(sim_size-(j+1))*sizeof(bool));
|
|
sim_size -= 1;
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// update the prng
|
|
sim_prngs[k] = wprng;
|
|
// just renaming
|
|
} else {
|
|
// first delete
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[j], &sim_isdirs[j+1],
|
|
(sim_size-(j+1))*sizeof(bool));
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// then insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[k+1], &sim_isdirs[k],
|
|
(sim_size-k)*sizeof(bool));
|
|
sim[k] = y;
|
|
sim_prngs[k] = wprng;
|
|
sim_isdirs[k] = isdir;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// update any related sim files
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
// move source files
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->x = y;
|
|
|
|
// mark target files as zombied
|
|
} else if (sim_files[k]->x == y) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// rename this file
|
|
char old_name[256];
|
|
sprintf(old_name, "batman%03x", x);
|
|
char new_name[256];
|
|
sprintf(new_name, "batman%03x", y);
|
|
lfsr_rename(&lfs, old_name, new_name) => 0;
|
|
|
|
// toss a directory into the mix
|
|
} else if (op == 5) {
|
|
// choose a pseudo-random number
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
|
|
// insert into our sim, use negative numbers for dirs
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= x) {
|
|
// already seen?
|
|
if (k < sim_size && sim[k] == x) {
|
|
goto nonsense;
|
|
} else {
|
|
// insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[k+1], &sim_isdirs[k],
|
|
(sim_size-k)*sizeof(bool));
|
|
sim_size += 1;
|
|
sim[k] = x;
|
|
sim_prngs[k] = 0;
|
|
sim_isdirs[k] = true;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// mark any related sim files as zombied
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// make the directory
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_mkdir(&lfs, name) => 0;
|
|
}
|
|
}
|
|
|
|
// check that disk matches our simulation
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
if (sim_isdirs[j]) {
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
} else {
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
if (sim_isdirs[j]) {
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
} else {
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
if (sim_isdirs[j]) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => LFS_ERR_ISDIR;
|
|
|
|
} else {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
|
|
|
|
uint32_t wprng = sim_prngs[j];
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
}
|
|
|
|
// check that our file handles match our simulation
|
|
for (lfs_size_t j = 0; j < sim_file_count; j++) {
|
|
uint32_t wprng = sim_files[j]->prng;
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
lfsr_file_rewind(&lfs, &sim_files[j]->file) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &sim_files[j]->file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
}
|
|
|
|
// clean up sim/lfs
|
|
free(sim);
|
|
free(sim_prngs);
|
|
for (lfs_size_t j = 0; j < sim_file_count; j++) {
|
|
lfsr_file_close(&lfs, &sim_files[j]->file) => 0;
|
|
free(sim_files[j]);
|
|
}
|
|
free(sim_files);
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
|
|
|
|
## Alternating badblocks
|
|
#
|
|
# Test alternating badblocks, this can be difficult for pair allocations
|
|
|
|
# B-tree's ridiculous branching factor is great for performance, but it makes
|
|
# them a bit of a pain to test, here we test them explicitly
|
|
[cases.test_badblocks_alternating_btree_many]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512]
|
|
# maximize lookahead buffer to avoid alloc scans
|
|
defines.LOOKAHEAD_SIZE = 'lfs_alignup(BLOCK_COUNT / 8, 8)'
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
in = 'lfs.c'
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
lfs_emubd_setwear(CFG, 2*i+0, 0xffffffff) => 0;
|
|
} else {
|
|
lfs_emubd_setwear(CFG, 2*i+1, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
|
|
// test creating a btree
|
|
lfs_t lfs;
|
|
lfs_init(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
// create free lookahead
|
|
memset(lfs.lookahead.buffer, 0, CFG->lookahead_size);
|
|
lfs.lookahead.window = 2;
|
|
lfs.lookahead.off = 0;
|
|
lfs.lookahead.size = lfs_min(8*CFG->lookahead_size,
|
|
CFG->block_count-2);
|
|
lfs_alloc_ckpoint(&lfs);
|
|
|
|
// create a btree
|
|
lfsr_btree_t btree = LFSR_BTREE_NULL();
|
|
|
|
// set up a simulation to compare against
|
|
char *sim = malloc(N);
|
|
lfs_size_t sim_size = 0;
|
|
memset(sim, 0, N);
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
// choose a pseudo-random bid
|
|
lfs_size_t bid = TEST_PRNG(&prng) % (sim_size+1);
|
|
|
|
// add to btree
|
|
lfsr_btree_commit(&lfs, &btree, bid, LFSR_ATTRS(
|
|
LFSR_ATTR(
|
|
LFSR_TAG_DATA, +1,
|
|
LFSR_DATA_BUF(&(uint8_t){'a'+(i % 26)}, 1)))) => 0;
|
|
|
|
// add to sim
|
|
memmove(&sim[bid+1], &sim[bid], sim_size-bid);
|
|
sim[bid] = 'a'+(i % 26);
|
|
sim_size += 1;
|
|
}
|
|
|
|
// check that btree matches sim
|
|
printf("expd: [");
|
|
bool first = true;
|
|
for (lfs_size_t i = 0; i < sim_size; i++) {
|
|
if (!first) {
|
|
printf(", ");
|
|
}
|
|
first = false;
|
|
printf("%c", sim[i]);
|
|
}
|
|
printf("]\n");
|
|
printf("btree: w%d 0x%x.%x\n",
|
|
btree.weight,
|
|
btree.blocks[0],
|
|
btree.trunk);
|
|
assert(btree.weight == sim_size);
|
|
|
|
uint8_t buffer[4];
|
|
lfsr_tag_t tag_;
|
|
lfs_size_t weight_;
|
|
lfsr_data_t data_;
|
|
for (lfs_size_t i = 0; i < sim_size; i++) {
|
|
lfsr_btree_lookup(&lfs, &btree, i,
|
|
&tag_, &weight_, &data_) => 0;
|
|
lfsr_data_read(&lfs, &data_, buffer, 4) => 1;
|
|
assert(tag_ == LFSR_TAG_DATA);
|
|
assert(weight_ == 1);
|
|
assert(memcmp(buffer, &sim[i], 1) == 0);
|
|
}
|
|
|
|
// and no extra elements
|
|
lfsr_btree_lookup(&lfs, &btree, sim_size,
|
|
&tag_, &weight_, &data_) => LFS_ERR_NOENT;
|
|
|
|
// clean up sim
|
|
free(sim);
|
|
lfs_deinit(&lfs) => 0;
|
|
'''
|
|
|
|
# with dirs
|
|
[cases.test_badblocks_alternating_dir_many]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64, 128, 256]
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (2*i+0 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+0, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (2*i+1 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+1, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test creating directories
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// make this many directories
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "dir%03x", i);
|
|
int err = lfsr_mkdir(&lfs, name);
|
|
assert(!err || (TEST_PLS && err == LFS_ERR_EXIST));
|
|
}
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// grm should be zero here
|
|
assert(lfs.grm_p[0] == 0);
|
|
|
|
// check that our mkdir worked
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "dir%03x", i);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "dir%03x", i);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "dir%03x", i);
|
|
lfsr_dir_open(&lfs, &dir, name) => 0;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
}
|
|
}
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# fuzz dirs
|
|
[cases.test_badblocks_alternating_dir_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64, 128, 256]
|
|
defines.OPS = '2*N'
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (2*i+0 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+0, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (2*i+1 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+1, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test fuzz with dirs
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// set up a simulation to compare against
|
|
lfs_size_t *sim = malloc(N*sizeof(lfs_size_t));
|
|
lfs_size_t sim_size = 0;
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
// choose a pseudo-random op, either mkdir, remove, or rename
|
|
uint8_t op = TEST_PRNG(&prng) % 3;
|
|
|
|
if (op == 0 || sim_size == 0) {
|
|
// choose a pseudo-random number, truncate to 3 hexadecimals
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
// insert into our sim
|
|
for (lfs_size_t j = 0;; j++) {
|
|
if (j >= sim_size || sim[j] >= x) {
|
|
// already seen?
|
|
if (j < sim_size && sim[j] == x) {
|
|
// do nothing
|
|
} else {
|
|
// insert
|
|
memmove(&sim[j+1], &sim[j],
|
|
(sim_size-j)*sizeof(lfs_size_t));
|
|
sim_size += 1;
|
|
sim[j] = x;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// create a directory here
|
|
char name[256];
|
|
sprintf(name, "dir%03x", x);
|
|
int err = lfsr_mkdir(&lfs, name);
|
|
assert(!err || err == LFS_ERR_EXIST);
|
|
|
|
} else if (op == 1) {
|
|
// choose a pseudo-random entry to delete
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
// delete from our sim
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
sim_size -= 1;
|
|
|
|
// remove this directory
|
|
char name[256];
|
|
sprintf(name, "dir%03x", x);
|
|
lfsr_remove(&lfs, name) => 0;
|
|
|
|
} else {
|
|
// choose a pseudo-random entry to rename, and a pseudo-random
|
|
// number to rename to
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
lfs_size_t y = TEST_PRNG(&prng) % N;
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= y) {
|
|
// already seen and not a noop?
|
|
if (k < sim_size && sim[k] == y && x != y) {
|
|
// just delete the original entry
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
sim_size -= 1;
|
|
} else {
|
|
// first delete
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// then insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
sim[k] = y;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// rename this directory
|
|
char old_name[256];
|
|
sprintf(old_name, "dir%03x", x);
|
|
char new_name[256];
|
|
sprintf(new_name, "dir%03x", y);
|
|
lfsr_rename(&lfs, old_name, new_name) => 0;
|
|
}
|
|
}
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// grm should be zero here
|
|
assert(lfs.grm_p[0] == 0);
|
|
|
|
// test that our directories match our simulation
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "dir%03x", sim[j]);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
char name2[256];
|
|
sprintf(name2, "dir%03x", sim[j]);
|
|
assert(strcmp(info.name, name2) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "dir%03x", sim[j]);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
}
|
|
|
|
// clean up sim/lfs
|
|
free(sim);
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# with files
|
|
[cases.test_badblocks_alternating_file_many]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 32'
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (2*i+0 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+0, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (2*i+1 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+1, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test creating files
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// create this many files
|
|
uint32_t prng = 42;
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", i);
|
|
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name,
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
lfsr_file_write(&lfs, &file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// check that our writes worked
|
|
prng = 42;
|
|
for (lfs_size_t i = 0; i < N; i++) {
|
|
// check with stat
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", i);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
|
|
// try reading the file, note we reset prng above
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
lfsr_file_t file;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
}
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# fuzz files
|
|
[cases.test_badblocks_alternating_file_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.OPS = '2*N'
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 16'
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (2*i+0 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+0, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (2*i+1 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+1, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test fuzz with files
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// set up a simulation to compare against
|
|
lfs_size_t *sim = malloc(N*sizeof(lfs_size_t));
|
|
uint32_t *sim_prngs = malloc(N*sizeof(uint32_t));
|
|
lfs_size_t sim_size = 0;
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
// choose which operation to do
|
|
uint8_t op = TEST_PRNG(&prng) % 3;
|
|
|
|
// creating a new file?
|
|
if (op == 0 || sim_size == 0) {
|
|
// choose a pseudo-random number
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
// associate each file with a prng that generates its contents
|
|
uint32_t wprng = TEST_PRNG(&prng);
|
|
|
|
// insert into our sim
|
|
for (lfs_size_t j = 0;; j++) {
|
|
if (j >= sim_size || sim[j] >= x) {
|
|
// already seen?
|
|
if (j < sim_size && sim[j] == x) {
|
|
// new prng
|
|
sim_prngs[j] = wprng;
|
|
} else {
|
|
// insert
|
|
memmove(&sim[j+1], &sim[j],
|
|
(sim_size-j)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j+1], &sim_prngs[j],
|
|
(sim_size-j)*sizeof(uint32_t));
|
|
sim_size += 1;
|
|
sim[j] = x;
|
|
sim_prngs[j] = wprng;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// create a file here
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", x);
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name,
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
|
|
lfsr_file_write(&lfs, &file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
// deleting a file?
|
|
} else if (op == 1) {
|
|
// choose a random file to delete
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
// delete from our sim
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
sim_size -= 1;
|
|
|
|
// delete this file
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", x);
|
|
lfsr_remove(&lfs, name) => 0;
|
|
|
|
// renaming a file?
|
|
} else {
|
|
// choose a random file to rename, and a random number to
|
|
// rename to
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
lfs_size_t y = TEST_PRNG(&prng) % N;
|
|
uint32_t wprng = sim_prngs[j];
|
|
|
|
// update our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= y) {
|
|
// renaming and replacing
|
|
if (k < sim_size && sim[k] == y && x != y) {
|
|
// delete the original entry
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
sim_size -= 1;
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// update the prng
|
|
sim_prngs[k] = wprng;
|
|
// just renaming
|
|
} else {
|
|
// first delete
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// then insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
sim[k] = y;
|
|
sim_prngs[k] = wprng;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// rename this file
|
|
char old_name[256];
|
|
sprintf(old_name, "amethyst%03x", x);
|
|
char new_name[256];
|
|
sprintf(new_name, "amethyst%03x", y);
|
|
lfsr_rename(&lfs, old_name, new_name) => 0;
|
|
}
|
|
}
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// check that our files match our simulation
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", sim[j]);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", sim[j]);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
// check the file contents
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "amethyst%03x", sim[j]);
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
|
|
|
|
uint32_t wprng = sim_prngs[j];
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
}
|
|
|
|
// clean up sim/lfs
|
|
free(sim);
|
|
free(sim_prngs);
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# with more complex file writes
|
|
[cases.test_badblocks_alternating_fwrite_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.OPS = 20
|
|
defines.SIZE = [
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
# chunk is more an upper limit here
|
|
defines.CHUNK = [32, 8, 1]
|
|
# INIT=0 => no init
|
|
# INIT=1 => fill with data
|
|
# INIT=2 => truncate to size
|
|
defines.INIT = [0, 1, 2]
|
|
defines.SYNC = [false, true]
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
if = [
|
|
'CHUNK <= SIZE',
|
|
# this just saves testing time
|
|
'SIZE <= 4*1024*FRAGMENT_SIZE',
|
|
]
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (2*i+0 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+0, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (2*i+1 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+1, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test with complex file writes
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// create a file
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, "hello",
|
|
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
|
|
// simulate our file in ram
|
|
uint8_t sim[SIZE];
|
|
lfs_off_t size;
|
|
uint32_t prng = SEED;
|
|
if (INIT == 0) {
|
|
memset(sim, 0, SIZE);
|
|
size = 0;
|
|
} else if (INIT == 1) {
|
|
for (lfs_size_t i = 0; i < SIZE; i++) {
|
|
sim[i] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &file, sim, SIZE) => SIZE;
|
|
size = SIZE;
|
|
} else {
|
|
memset(sim, 0, SIZE);
|
|
lfsr_file_truncate(&lfs, &file, SIZE) => 0;
|
|
size = SIZE;
|
|
}
|
|
|
|
// sync?
|
|
if (SYNC) {
|
|
lfsr_file_sync(&lfs, &file) => 0;
|
|
}
|
|
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
// choose a random location
|
|
lfs_off_t off = TEST_PRNG(&prng) % SIZE;
|
|
// and a random size, up to the chunk size
|
|
lfs_size_t chunk = lfs_min(
|
|
(TEST_PRNG(&prng) % (CHUNK+1-1)) + 1,
|
|
SIZE - off);
|
|
|
|
// update sim
|
|
for (lfs_size_t j = 0; j < chunk; j++) {
|
|
sim[off+j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
size = lfs_max(size, off+chunk);
|
|
|
|
// update file
|
|
lfsr_file_seek(&lfs, &file, off, LFS_SEEK_SET) => off;
|
|
lfsr_file_write(&lfs, &file, &sim[off], chunk) => chunk;
|
|
|
|
// sync?
|
|
if (SYNC) {
|
|
lfsr_file_sync(&lfs, &file) => 0;
|
|
}
|
|
}
|
|
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
|
|
for (int remount = 0; remount < 2; remount++) {
|
|
// remount?
|
|
if (remount) {
|
|
lfsr_unmount(&lfs) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
}
|
|
|
|
// check our file with stat
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, "hello", &info) => 0;
|
|
assert(strcmp(info.name, "hello") == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == size);
|
|
|
|
// and with dir read
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "hello") == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == size);
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
// try reading our file
|
|
lfsr_file_open(&lfs, &file, "hello", LFS_O_RDONLY) => 0;
|
|
// is size correct?
|
|
lfsr_file_size(&lfs, &file) => size;
|
|
// try reading
|
|
uint8_t rbuf[2*SIZE];
|
|
memset(rbuf, 0xaa, 2*SIZE);
|
|
lfsr_file_read(&lfs, &file, rbuf, 2*SIZE) => size;
|
|
// does our file match our simulation?
|
|
assert(memcmp(rbuf, sim, size) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# with orphans, zombies, etc
|
|
[cases.test_badblocks_alternating_orphanzombie_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.OPS = '2*N'
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 16'
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (2*i+0 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+0, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (2*i+1 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+1, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test with orphans, zombies, etc
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// set up a simulation to compare against
|
|
lfs_size_t *sim = malloc(N*sizeof(lfs_size_t));
|
|
uint32_t *sim_prngs = malloc(N*sizeof(uint32_t));
|
|
lfs_size_t sim_size = 0;
|
|
|
|
typedef struct sim_file {
|
|
lfs_size_t x;
|
|
bool orphan;
|
|
bool zombie;
|
|
uint32_t prng;
|
|
lfsr_file_t file;
|
|
} sim_file_t;
|
|
sim_file_t **sim_files = malloc(N*sizeof(sim_file_t*));
|
|
lfs_size_t sim_file_count = 0;
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
nonsense:;
|
|
// choose which operation to do
|
|
uint8_t op = TEST_PRNG(&prng) % 5;
|
|
|
|
// open a new file?
|
|
if (op == 0) {
|
|
if (sim_file_count >= N) {
|
|
goto nonsense;
|
|
}
|
|
// choose a pseudo-random number
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
|
|
// already exists?
|
|
bool orphan = true;
|
|
uint32_t wprng = 0;
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
if (sim[j] == x) {
|
|
orphan = false;
|
|
wprng = sim_prngs[j];
|
|
break;
|
|
}
|
|
}
|
|
// choose a random seed if we don't exist
|
|
if (orphan) {
|
|
wprng = TEST_PRNG(&prng);
|
|
}
|
|
|
|
// open in our sim
|
|
lfs_size_t j = sim_file_count;
|
|
sim_files[j] = malloc(sizeof(sim_file_t));
|
|
sim_files[j]->x = x;
|
|
sim_files[j]->orphan = orphan;
|
|
sim_files[j]->zombie = false;
|
|
sim_files[j]->prng = wprng;
|
|
sim_file_count++;
|
|
|
|
// open the actual file
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_file_open(&lfs, &sim_files[j]->file, name,
|
|
LFS_O_RDWR | LFS_O_CREAT) => 0;
|
|
|
|
// write some initial data if we don't exist
|
|
if (orphan) {
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t k = 0; k < SIZE; k++) {
|
|
wbuf[k] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
|
|
}
|
|
|
|
// write/rewrite a file?
|
|
} else if (op == 1) {
|
|
if (sim_file_count == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file handle
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_file_count;
|
|
lfs_size_t x = sim_files[j]->x;
|
|
// choose a random seed
|
|
uint32_t wprng = TEST_PRNG(&prng);
|
|
|
|
// update sim
|
|
sim_files[j]->prng = wprng;
|
|
if (!sim_files[j]->zombie) {
|
|
// insert into our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= x) {
|
|
// already seen?
|
|
if (k < sim_size && sim[k] == x) {
|
|
// new prng
|
|
sim_prngs[k] = wprng;
|
|
} else {
|
|
// insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
sim_size += 1;
|
|
sim[k] = x;
|
|
sim_prngs[k] = wprng;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// update related sim files
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x && !sim_files[k]->zombie) {
|
|
sim_files[k]->orphan = false;
|
|
sim_files[k]->prng = wprng;
|
|
}
|
|
}
|
|
}
|
|
|
|
// write to the file
|
|
lfsr_file_rewind(&lfs, &sim_files[j]->file) => 0;
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t k = 0; k < SIZE; k++) {
|
|
wbuf[k] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_sync(&lfs, &sim_files[j]->file)
|
|
=> (!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT;
|
|
|
|
// close a file?
|
|
} else if (op == 2) {
|
|
if (sim_file_count == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file handle
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_file_count;
|
|
|
|
// this doesn't really test anything, but if we don't close
|
|
// files eventually everything will end up zombies
|
|
|
|
// close the file without affected disk
|
|
lfsr_file_desync(&lfs, &sim_files[j]->file) => 0;
|
|
lfsr_file_close(&lfs, &sim_files[j]->file) => 0;
|
|
|
|
// remove from list
|
|
free(sim_files[j]);
|
|
sim_files[j] = sim_files[sim_file_count-1];
|
|
sim_file_count -= 1;
|
|
|
|
// remove a file?
|
|
} else if (op == 3) {
|
|
if (sim_size == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file to delete
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
|
|
// delete from our sim
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
sim_size -= 1;
|
|
|
|
// mark any related sim files as zombied
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// delete this file
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_remove(&lfs, name) => 0;
|
|
|
|
// rename a file?
|
|
} else if (op == 4) {
|
|
if (sim_size == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file to rename, and a random number to
|
|
// rename to
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
lfs_size_t y = TEST_PRNG(&prng) % N;
|
|
uint32_t wprng = sim_prngs[j];
|
|
|
|
// update our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= y) {
|
|
// renaming and replacing
|
|
if (k < sim_size && sim[k] == y && x != y) {
|
|
// delete the original entry
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
sim_size -= 1;
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// update the prng
|
|
sim_prngs[k] = wprng;
|
|
// just renaming
|
|
} else {
|
|
// first delete
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// then insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
sim[k] = y;
|
|
sim_prngs[k] = wprng;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// update any related sim files
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
// move source files
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->x = y;
|
|
|
|
// mark target files as zombied
|
|
} else if (sim_files[k]->x == y) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// rename this file
|
|
char old_name[256];
|
|
sprintf(old_name, "batman%03x", x);
|
|
char new_name[256];
|
|
sprintf(new_name, "batman%03x", y);
|
|
lfsr_rename(&lfs, old_name, new_name) => 0;
|
|
}
|
|
}
|
|
|
|
// check that disk matches our simulation
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
|
|
|
|
uint32_t wprng = sim_prngs[j];
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
|
|
// check that our file handles match our simulation
|
|
for (lfs_size_t j = 0; j < sim_file_count; j++) {
|
|
uint32_t wprng = sim_files[j]->prng;
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
lfsr_file_rewind(&lfs, &sim_files[j]->file) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &sim_files[j]->file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
}
|
|
|
|
// clean up sim/lfs
|
|
free(sim);
|
|
free(sim_prngs);
|
|
for (lfs_size_t j = 0; j < sim_file_count; j++) {
|
|
lfsr_file_close(&lfs, &sim_files[j]->file) => 0;
|
|
free(sim_files[j]);
|
|
}
|
|
free(sim_files);
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
# with orphans, zombies, dirs, etc
|
|
[cases.test_badblocks_alternating_orphanzombiedir_fuzz]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
defines.MIRROR = [false, true]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.OPS = '2*N'
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_BUFFER_SIZE/2',
|
|
'2*FILE_BUFFER_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'4*BLOCK_SIZE',
|
|
]
|
|
defines.SEED = 42
|
|
fuzz = 'SEED'
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 16'
|
|
code = '''
|
|
// test a large region of bad blocks
|
|
for (lfs_size_t i = 0; i < BLOCK_COUNT/2; i++) {
|
|
// mark our badblock as bad
|
|
if (!MIRROR) {
|
|
if (2*i+0 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+0, 0xffffffff) => 0;
|
|
}
|
|
} else {
|
|
if (2*i+1 >= 2) {
|
|
lfs_emubd_setwear(CFG, 2*i+1, 0xffffffff) => 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// test with orphans, zombies, dirs, etc
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
// set up a simulation to compare against
|
|
lfs_size_t *sim = malloc(N*sizeof(lfs_size_t));
|
|
uint32_t *sim_prngs = malloc(N*sizeof(uint32_t));
|
|
bool *sim_isdirs = malloc(N*sizeof(bool));
|
|
lfs_size_t sim_size = 0;
|
|
|
|
typedef struct sim_file {
|
|
lfs_size_t x;
|
|
bool orphan;
|
|
bool zombie;
|
|
uint32_t prng;
|
|
lfsr_file_t file;
|
|
} sim_file_t;
|
|
sim_file_t **sim_files = malloc(N*sizeof(sim_file_t*));
|
|
lfs_size_t sim_file_count = 0;
|
|
|
|
uint32_t prng = SEED;
|
|
for (lfs_size_t i = 0; i < OPS; i++) {
|
|
nonsense:;
|
|
// choose which operation to do
|
|
uint8_t op = TEST_PRNG(&prng) % 8;
|
|
|
|
// open a new file?
|
|
if (op == 0) {
|
|
if (sim_file_count >= N) {
|
|
goto nonsense;
|
|
}
|
|
// choose a pseudo-random number
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
|
|
// already exists?
|
|
bool orphan = true;
|
|
uint32_t wprng = 0;
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
if (sim[j] == x) {
|
|
if (sim_isdirs[j]) {
|
|
goto nonsense;
|
|
}
|
|
orphan = false;
|
|
wprng = sim_prngs[j];
|
|
break;
|
|
}
|
|
}
|
|
// choose a random seed if we don't exist
|
|
if (orphan) {
|
|
wprng = TEST_PRNG(&prng);
|
|
}
|
|
|
|
// open in our sim
|
|
lfs_size_t j = sim_file_count;
|
|
sim_files[j] = malloc(sizeof(sim_file_t));
|
|
sim_files[j]->x = x;
|
|
sim_files[j]->orphan = orphan;
|
|
sim_files[j]->zombie = false;
|
|
sim_files[j]->prng = wprng;
|
|
sim_file_count++;
|
|
|
|
// open the actual file
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_file_open(&lfs, &sim_files[j]->file, name,
|
|
LFS_O_RDWR | LFS_O_CREAT) => 0;
|
|
|
|
// write some initial data if we don't exist
|
|
if (orphan) {
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t k = 0; k < SIZE; k++) {
|
|
wbuf[k] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
|
|
}
|
|
|
|
// write/rewrite a file?
|
|
} else if (op == 1) {
|
|
if (sim_file_count == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file handle
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_file_count;
|
|
lfs_size_t x = sim_files[j]->x;
|
|
// choose a random seed
|
|
uint32_t wprng = TEST_PRNG(&prng);
|
|
|
|
// update sim
|
|
sim_files[j]->prng = wprng;
|
|
if (!sim_files[j]->zombie) {
|
|
// insert into our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= x) {
|
|
// already seen?
|
|
if (k < sim_size && sim[k] == x) {
|
|
// new prng
|
|
sim_prngs[k] = wprng;
|
|
} else {
|
|
// insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[k+1], &sim_isdirs[k],
|
|
(sim_size-k)*sizeof(bool));
|
|
sim_size += 1;
|
|
sim[k] = x;
|
|
sim_prngs[k] = wprng;
|
|
sim_isdirs[k] = false;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// update related sim files
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x && !sim_files[k]->zombie) {
|
|
sim_files[k]->orphan = false;
|
|
sim_files[k]->prng = wprng;
|
|
}
|
|
}
|
|
}
|
|
|
|
// write to the file
|
|
lfsr_file_rewind(&lfs, &sim_files[j]->file) => 0;
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t k = 0; k < SIZE; k++) {
|
|
wbuf[k] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
lfsr_file_write(&lfs, &sim_files[j]->file, wbuf, SIZE) => SIZE;
|
|
lfsr_file_sync(&lfs, &sim_files[j]->file)
|
|
=> (!sim_files[j]->zombie) ? 0 : LFS_ERR_NOENT;
|
|
|
|
// close a file?
|
|
} else if (op == 2) {
|
|
if (sim_file_count == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file handle
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_file_count;
|
|
|
|
// this doesn't really test anything, but if we don't close
|
|
// files eventually everything will end up zombies
|
|
|
|
// close the file without affected disk
|
|
lfsr_file_desync(&lfs, &sim_files[j]->file) => 0;
|
|
lfsr_file_close(&lfs, &sim_files[j]->file) => 0;
|
|
|
|
// remove from list
|
|
free(sim_files[j]);
|
|
sim_files[j] = sim_files[sim_file_count-1];
|
|
sim_file_count -= 1;
|
|
|
|
// remove a file?
|
|
} else if (op == 3) {
|
|
if (sim_size == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file to delete
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
|
|
// delete from our sim
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[j], &sim_isdirs[j+1],
|
|
(sim_size-(j+1))*sizeof(bool));
|
|
sim_size -= 1;
|
|
|
|
// mark any related sim files as zombied
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// delete this file
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_remove(&lfs, name) => 0;
|
|
|
|
// rename a file?
|
|
} else if (op == 4) {
|
|
if (sim_size == 0) {
|
|
goto nonsense;
|
|
}
|
|
// choose a random file to rename, and a random number to
|
|
// rename to
|
|
lfs_size_t j = TEST_PRNG(&prng) % sim_size;
|
|
lfs_size_t x = sim[j];
|
|
lfs_size_t y = TEST_PRNG(&prng) % N;
|
|
uint32_t wprng = sim_prngs[j];
|
|
bool isdir = sim_isdirs[j];
|
|
|
|
// update our sim
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= y) {
|
|
// renaming and replacing
|
|
if (k < sim_size && sim[k] == y && x != y) {
|
|
// type mismatch?
|
|
if (sim_isdirs[k] != isdir) {
|
|
goto nonsense;
|
|
}
|
|
|
|
// delete the original entry
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[j], &sim_isdirs[j+1],
|
|
(sim_size-(j+1))*sizeof(bool));
|
|
sim_size -= 1;
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// update the prng
|
|
sim_prngs[k] = wprng;
|
|
// just renaming
|
|
} else {
|
|
// first delete
|
|
memmove(&sim[j], &sim[j+1],
|
|
(sim_size-(j+1))*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[j], &sim_prngs[j+1],
|
|
(sim_size-(j+1))*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[j], &sim_isdirs[j+1],
|
|
(sim_size-(j+1))*sizeof(bool));
|
|
if (k > j) {
|
|
k -= 1;
|
|
}
|
|
// then insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[k+1], &sim_isdirs[k],
|
|
(sim_size-k)*sizeof(bool));
|
|
sim[k] = y;
|
|
sim_prngs[k] = wprng;
|
|
sim_isdirs[k] = isdir;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// update any related sim files
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
// move source files
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->x = y;
|
|
|
|
// mark target files as zombied
|
|
} else if (sim_files[k]->x == y) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// rename this file
|
|
char old_name[256];
|
|
sprintf(old_name, "batman%03x", x);
|
|
char new_name[256];
|
|
sprintf(new_name, "batman%03x", y);
|
|
lfsr_rename(&lfs, old_name, new_name) => 0;
|
|
|
|
// toss a directory into the mix
|
|
} else if (op == 5) {
|
|
// choose a pseudo-random number
|
|
lfs_size_t x = TEST_PRNG(&prng) % N;
|
|
|
|
// insert into our sim, use negative numbers for dirs
|
|
for (lfs_size_t k = 0;; k++) {
|
|
if (k >= sim_size || sim[k] >= x) {
|
|
// already seen?
|
|
if (k < sim_size && sim[k] == x) {
|
|
goto nonsense;
|
|
} else {
|
|
// insert
|
|
memmove(&sim[k+1], &sim[k],
|
|
(sim_size-k)*sizeof(lfs_size_t));
|
|
memmove(&sim_prngs[k+1], &sim_prngs[k],
|
|
(sim_size-k)*sizeof(uint32_t));
|
|
memmove(&sim_isdirs[k+1], &sim_isdirs[k],
|
|
(sim_size-k)*sizeof(bool));
|
|
sim_size += 1;
|
|
sim[k] = x;
|
|
sim_prngs[k] = 0;
|
|
sim_isdirs[k] = true;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// mark any related sim files as zombied
|
|
for (lfs_size_t k = 0; k < sim_file_count; k++) {
|
|
if (sim_files[k]->x == x) {
|
|
sim_files[k]->zombie = true;
|
|
}
|
|
}
|
|
|
|
// make the directory
|
|
char name[256];
|
|
sprintf(name, "batman%03x", x);
|
|
lfsr_mkdir(&lfs, name) => 0;
|
|
}
|
|
}
|
|
|
|
// check that disk matches our simulation
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
struct lfs_info info;
|
|
lfsr_stat(&lfs, name, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
if (sim_isdirs[j]) {
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
} else {
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
}
|
|
|
|
lfsr_dir_t dir;
|
|
lfsr_dir_open(&lfs, &dir, "/") => 0;
|
|
struct lfs_info info;
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_dir_read(&lfs, &dir, &info) => 0;
|
|
assert(strcmp(info.name, name) == 0);
|
|
if (sim_isdirs[j]) {
|
|
assert(info.type == LFS_TYPE_DIR);
|
|
} else {
|
|
assert(info.type == LFS_TYPE_REG);
|
|
assert(info.size == SIZE);
|
|
}
|
|
}
|
|
lfsr_dir_read(&lfs, &dir, &info) => LFS_ERR_NOENT;
|
|
lfsr_dir_close(&lfs, &dir) => 0;
|
|
|
|
for (lfs_size_t j = 0; j < sim_size; j++) {
|
|
if (sim_isdirs[j]) {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => LFS_ERR_ISDIR;
|
|
|
|
} else {
|
|
char name[256];
|
|
sprintf(name, "batman%03x", sim[j]);
|
|
lfsr_file_t file;
|
|
lfsr_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
|
|
|
|
uint32_t wprng = sim_prngs[j];
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfsr_file_close(&lfs, &file) => 0;
|
|
}
|
|
}
|
|
|
|
// check that our file handles match our simulation
|
|
for (lfs_size_t j = 0; j < sim_file_count; j++) {
|
|
uint32_t wprng = sim_files[j]->prng;
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&wprng) % 26);
|
|
}
|
|
|
|
lfsr_file_rewind(&lfs, &sim_files[j]->file) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfsr_file_read(&lfs, &sim_files[j]->file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
}
|
|
|
|
// clean up sim/lfs
|
|
free(sim);
|
|
free(sim_prngs);
|
|
for (lfs_size_t j = 0; j < sim_file_count; j++) {
|
|
lfsr_file_close(&lfs, &sim_files[j]->file) => 0;
|
|
free(sim_files[j]);
|
|
}
|
|
free(sim_files);
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
|
|
|
|
## other corner cases
|
|
|
|
# test formatting with 0 or 1 bad, this should just error
|
|
[cases.test_badblocks_mrootanchor_format]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCKS = [0x1, 0x2, 0x3]
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
code = '''
|
|
if (BADBLOCKS & 0x1) {
|
|
lfs_emubd_setwear(CFG, 0, 0xffffffff) => 0;
|
|
}
|
|
if (BADBLOCKS & 0x2) {
|
|
lfs_emubd_setwear(CFG, 1, 0xffffffff) => 0;
|
|
}
|
|
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => LFS_ERR_CORRUPT;
|
|
'''
|
|
|
|
# test blocks 0 or 1 going bad, this should just error
|
|
[cases.test_badblocks_mrootanchor_wear]
|
|
defines.ERASE_CYCLES = 0xffffffff
|
|
defines.BADBLOCKS = [0x1, 0x2]
|
|
defines.BADBLOCK_BEHAVIOR = [
|
|
'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
'LFS_EMUBD_BADBLOCK_READERROR',
|
|
'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
]
|
|
# we need prog checking to detect read errors
|
|
defines.CKPROGS = 'BADBLOCK_BEHAVIOR >= LFS_EMUBD_BADBLOCK_READERROR'
|
|
code = '''
|
|
lfs_t lfs;
|
|
lfsr_format(&lfs, CFG) => 0;
|
|
|
|
if (BADBLOCKS & 0x1) {
|
|
lfs_emubd_setwear(CFG, 0, 0xffffffff) => 0;
|
|
}
|
|
if (BADBLOCKS & 0x2) {
|
|
lfs_emubd_setwear(CFG, 1, 0xffffffff) => 0;
|
|
}
|
|
|
|
lfsr_mount(&lfs,
|
|
LFS_M_RDWR
|
|
| ((CKPROGS) ? LFS_M_CKPROGS : 0),
|
|
CFG) => 0;
|
|
|
|
for (lfs_size_t i = 0;; i++) {
|
|
// this should eventually fail
|
|
assert(i <= BLOCK_COUNT);
|
|
|
|
int err = lfsr_mkdir(&lfs, "hi");
|
|
assert(!err || err == LFS_ERR_NOSPC);
|
|
if (err == LFS_ERR_NOSPC) {
|
|
break;
|
|
}
|
|
|
|
err = lfsr_remove(&lfs, "hi");
|
|
assert(!err || err == LFS_ERR_NOSPC);
|
|
if (err == LFS_ERR_NOSPC) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
lfsr_unmount(&lfs) => 0;
|
|
'''
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## bad blocks with block cycles should be tested in test_relocations
|
|
#if = '(int32_t)BLOCK_CYCLES == -1'
|
|
#
|
|
#[cases.test_badblocks_single]
|
|
#defines.BLOCK_COUNT = 256 # small bd so test runs faster
|
|
#defines.ERASE_CYCLES = 0xffffffff
|
|
#defines.ERASE_VALUE = [0x00, 0xff, -1]
|
|
#defines.BADBLOCK_BEHAVIOR = [
|
|
# 'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
# 'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
# 'LFS_EMUBD_BADBLOCK_READERROR',
|
|
# 'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
# 'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
#]
|
|
#defines.NAMEMULT = 64
|
|
#defines.FILEMULT = 1
|
|
#code = '''
|
|
# for (lfs_block_t badblock = 2; badblock < BLOCK_COUNT; badblock++) {
|
|
# lfs_emubd_setwear(cfg, badblock-1, 0) => 0;
|
|
# lfs_emubd_setwear(cfg, badblock, 0xffffffff) => 0;
|
|
#
|
|
# lfs_t lfs;
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
#
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# for (int i = 1; i < 10; i++) {
|
|
# uint8_t buffer[1024];
|
|
# for (int j = 0; j < NAMEMULT; j++) {
|
|
# buffer[j] = '0'+i;
|
|
# }
|
|
# buffer[NAMEMULT] = '\0';
|
|
# lfs_mkdir(&lfs, (char*)buffer) => 0;
|
|
#
|
|
# buffer[NAMEMULT] = '/';
|
|
# for (int j = 0; j < NAMEMULT; j++) {
|
|
# buffer[j+NAMEMULT+1] = '0'+i;
|
|
# }
|
|
# buffer[2*NAMEMULT+1] = '\0';
|
|
# lfs_file_t file;
|
|
# lfs_file_open(&lfs, &file, (char*)buffer,
|
|
# LFS_O_WRONLY | LFS_O_CREAT) => 0;
|
|
#
|
|
# lfs_size_t size = NAMEMULT;
|
|
# for (int j = 0; j < i*FILEMULT; j++) {
|
|
# lfs_file_write(&lfs, &file, buffer, size) => size;
|
|
# }
|
|
#
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# }
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# for (int i = 1; i < 10; i++) {
|
|
# uint8_t buffer[1024];
|
|
# for (int j = 0; j < NAMEMULT; j++) {
|
|
# buffer[j] = '0'+i;
|
|
# }
|
|
# buffer[NAMEMULT] = '\0';
|
|
# struct lfs_info info;
|
|
# lfs_stat(&lfs, (char*)buffer, &info) => 0;
|
|
# info.type => LFS_TYPE_DIR;
|
|
#
|
|
# buffer[NAMEMULT] = '/';
|
|
# for (int j = 0; j < NAMEMULT; j++) {
|
|
# buffer[j+NAMEMULT+1] = '0'+i;
|
|
# }
|
|
# buffer[2*NAMEMULT+1] = '\0';
|
|
# lfs_file_t file;
|
|
# lfs_file_open(&lfs, &file, (char*)buffer, LFS_O_RDONLY) => 0;
|
|
#
|
|
# int size = NAMEMULT;
|
|
# for (int j = 0; j < i*FILEMULT; j++) {
|
|
# uint8_t rbuffer[1024];
|
|
# lfs_file_read(&lfs, &file, rbuffer, size) => size;
|
|
# memcmp(buffer, rbuffer, size) => 0;
|
|
# }
|
|
#
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# }
|
|
# lfs_unmount(&lfs) => 0;
|
|
# }
|
|
#'''
|
|
#
|
|
#[cases.test_badblocks_region_corruption] # (causes cascading failures)
|
|
#defines.BLOCK_COUNT = 256 # small bd so test runs faster
|
|
#defines.ERASE_CYCLES = 0xffffffff
|
|
#defines.ERASE_VALUE = [0x00, 0xff, -1]
|
|
#defines.BADBLOCK_BEHAVIOR = [
|
|
# 'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
# 'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
# 'LFS_EMUBD_BADBLOCK_READERROR',
|
|
# 'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
# 'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
#]
|
|
#defines.NAMEMULT = 64
|
|
#defines.FILEMULT = 1
|
|
#code = '''
|
|
# for (lfs_block_t i = 0; i < (BLOCK_COUNT-2)/2; i++) {
|
|
# lfs_emubd_setwear(cfg, i+2, 0xffffffff) => 0;
|
|
# }
|
|
#
|
|
# lfs_t lfs;
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
#
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# for (int i = 1; i < 10; i++) {
|
|
# uint8_t buffer[1024];
|
|
# for (int j = 0; j < NAMEMULT; j++) {
|
|
# buffer[j] = '0'+i;
|
|
# }
|
|
# buffer[NAMEMULT] = '\0';
|
|
# lfs_mkdir(&lfs, (char*)buffer) => 0;
|
|
#
|
|
# buffer[NAMEMULT] = '/';
|
|
# for (int j = 0; j < NAMEMULT; j++) {
|
|
# buffer[j+NAMEMULT+1] = '0'+i;
|
|
# }
|
|
# buffer[2*NAMEMULT+1] = '\0';
|
|
# lfs_file_t file;
|
|
# lfs_file_open(&lfs, &file, (char*)buffer,
|
|
# LFS_O_WRONLY | LFS_O_CREAT) => 0;
|
|
#
|
|
# lfs_size_t size = NAMEMULT;
|
|
# for (int j = 0; j < i*FILEMULT; j++) {
|
|
# lfs_file_write(&lfs, &file, buffer, size) => size;
|
|
# }
|
|
#
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# }
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# for (int i = 1; i < 10; i++) {
|
|
# uint8_t buffer[1024];
|
|
# for (int j = 0; j < NAMEMULT; j++) {
|
|
# buffer[j] = '0'+i;
|
|
# }
|
|
# buffer[NAMEMULT] = '\0';
|
|
# struct lfs_info info;
|
|
# lfs_stat(&lfs, (char*)buffer, &info) => 0;
|
|
# info.type => LFS_TYPE_DIR;
|
|
#
|
|
# buffer[NAMEMULT] = '/';
|
|
# for (int j = 0; j < NAMEMULT; j++) {
|
|
# buffer[j+NAMEMULT+1] = '0'+i;
|
|
# }
|
|
# buffer[2*NAMEMULT+1] = '\0';
|
|
# lfs_file_t file;
|
|
# lfs_file_open(&lfs, &file, (char*)buffer, LFS_O_RDONLY) => 0;
|
|
#
|
|
# lfs_size_t size = NAMEMULT;
|
|
# for (int j = 0; j < i*FILEMULT; j++) {
|
|
# uint8_t rbuffer[1024];
|
|
# lfs_file_read(&lfs, &file, rbuffer, size) => size;
|
|
# memcmp(buffer, rbuffer, size) => 0;
|
|
# }
|
|
#
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# }
|
|
# lfs_unmount(&lfs) => 0;
|
|
#'''
|
|
#
|
|
#[cases.test_badblocks_alternating_corruption] # (causes cascading failures)
|
|
#defines.BLOCK_COUNT = 256 # small bd so test runs faster
|
|
#defines.ERASE_CYCLES = 0xffffffff
|
|
#defines.ERASE_VALUE = [0x00, 0xff, -1]
|
|
#defines.BADBLOCK_BEHAVIOR = [
|
|
# 'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
# 'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
# 'LFS_EMUBD_BADBLOCK_READERROR',
|
|
# 'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
# 'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
#]
|
|
#defines.NAMEMULT = 64
|
|
#defines.FILEMULT = 1
|
|
#code = '''
|
|
# for (lfs_block_t i = 0; i < (BLOCK_COUNT-2)/2; i++) {
|
|
# lfs_emubd_setwear(cfg, (2*i) + 2, 0xffffffff) => 0;
|
|
# }
|
|
#
|
|
# lfs_t lfs;
|
|
# lfs_format(&lfs, cfg) => 0;
|
|
#
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# for (int i = 1; i < 10; i++) {
|
|
# uint8_t buffer[1024];
|
|
# for (int j = 0; j < NAMEMULT; j++) {
|
|
# buffer[j] = '0'+i;
|
|
# }
|
|
# buffer[NAMEMULT] = '\0';
|
|
# lfs_mkdir(&lfs, (char*)buffer) => 0;
|
|
#
|
|
# buffer[NAMEMULT] = '/';
|
|
# for (int j = 0; j < NAMEMULT; j++) {
|
|
# buffer[j+NAMEMULT+1] = '0'+i;
|
|
# }
|
|
# buffer[2*NAMEMULT+1] = '\0';
|
|
# lfs_file_t file;
|
|
# lfs_file_open(&lfs, &file, (char*)buffer,
|
|
# LFS_O_WRONLY | LFS_O_CREAT) => 0;
|
|
#
|
|
# lfs_size_t size = NAMEMULT;
|
|
# for (int j = 0; j < i*FILEMULT; j++) {
|
|
# lfs_file_write(&lfs, &file, buffer, size) => size;
|
|
# }
|
|
#
|
|
# lfs_file_close(&lfs, &file) => 0;
|
|
# }
|
|
# lfs_unmount(&lfs) => 0;
|
|
#
|
|
# lfs_mount(&lfs, cfg) => 0;
|
|
# for (int i = 1; i < 10; i++) {
|
|
# uint8_t buffer[1024];
|
|
# for (int j = 0; j < NAMEMULT; j++) {
|
|
# buffer[j] = '0'+i;
|
|
# }
|
|
# buffer[NAMEMULT] = '\0';
|
|
# struct lfs_info info;
|
|
# lfs_stat(&lfs, (char*)buffer, &info) => 0;
|
|
# info.type => LFS_TYPE_DIR;
|
|
#
|
|
# buffer[NAMEMULT] = '/';
|
|
# for (int j = 0; j < NAMEMULT; j++) {
|
|
# buffer[j+NAMEMULT+1] = '0'+i;
|
|
# }
|
|
# buffer[2*NAMEMULT+1] = '\0';
|
|
# lfs_file_t file;
|
|
# lfs_file_open(&lfs, &file, (char*)buffer, LFS_O_RDONLY) => 0;
|
|
#
|
|
# lfs_size_t size = NAMEMULT;
|
|
# for (int j = 0; j < i*FILEMULT; j++) {
|
|
# uint8_t rbuffer[1024];
|
|
# lfs_file_read(&lfs, &file, rbuffer, size) => size;
|
|
# memcmp(buffer, rbuffer, size) => 0;
|
|
# }
|
|
#
|
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# lfs_file_close(&lfs, &file) => 0;
|
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# }
|
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# lfs_unmount(&lfs) => 0;
|
|
#'''
|
|
#
|
|
## other corner cases
|
|
#[cases.test_badblocks_superblocks] # (corrupt 1 or 0)
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|
#defines.ERASE_CYCLES = 0xffffffff
|
|
#defines.ERASE_VALUE = [0x00, 0xff, -1]
|
|
#defines.BADBLOCK_BEHAVIOR = [
|
|
# 'LFS_EMUBD_BADBLOCK_PROGERROR',
|
|
# 'LFS_EMUBD_BADBLOCK_ERASEERROR',
|
|
# 'LFS_EMUBD_BADBLOCK_READERROR',
|
|
# 'LFS_EMUBD_BADBLOCK_PROGNOOP',
|
|
# 'LFS_EMUBD_BADBLOCK_ERASENOOP',
|
|
#]
|
|
#code = '''
|
|
# lfs_emubd_setwear(cfg, 0, 0xffffffff) => 0;
|
|
# lfs_emubd_setwear(cfg, 1, 0xffffffff) => 0;
|
|
#
|
|
# lfs_t lfs;
|
|
# lfs_format(&lfs, cfg) => LFS_ERR_NOSPC;
|
|
# lfs_mount(&lfs, cfg) => LFS_ERR_CORRUPT;
|
|
#'''
|