Christopher Haster
ecc2857c0e
Even with adding better reentrance testing, the bad-block tests are still very useful at isolating the block eviction logic. This also required rewriting a bit of the internal testing wirework to allow custom block devices which opens up quite a bit more straegies for testing.
376 lines
11 KiB
TOML
376 lines
11 KiB
TOML
# special bad-block block device hook for simulating blocks
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# that are no longer writable
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code = '''
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lfs_block_t *bbbd_badblocks;
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size_t bbbd_badblocks_count;
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int bbbd_read(const struct lfs_config *c, lfs_block_t block,
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lfs_off_t off, void *buffer, lfs_size_t size) {
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for (size_t i = 0; i < bbbd_badblocks_count; i++) {
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if (bbbd_badblocks[i] == block) {
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return LFS_ERR_CORRUPT;
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}
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}
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return lfs_testbd_read(c, block, off, buffer, size);
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}
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int bbbd_prog(const struct lfs_config *c, lfs_block_t block,
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lfs_off_t off, const void *buffer, lfs_size_t size) {
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for (size_t i = 0; i < bbbd_badblocks_count; i++) {
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if (bbbd_badblocks[i] == block) {
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return LFS_ERR_CORRUPT;
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}
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}
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return lfs_testbd_prog(c, block, off, buffer, size);
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}
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int bbbd_erase(const struct lfs_config *c, lfs_block_t block) {
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for (size_t i = 0; i < bbbd_badblocks_count; i++) {
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if (bbbd_badblocks[i] == block) {
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return LFS_ERR_CORRUPT;
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}
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}
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return lfs_testbd_erase(c, block);
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}
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'''
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[[case]] # single bad blocks
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define.LFS_BD_PROG = 'bbbd_prog'
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define.NAMEMULT = 64
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define.FILEMULT = 1
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code = '''
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for (lfs_block_t badblock = 2; badblock < LFS_BLOCK_COUNT; badblock++) {
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bbbd_badblocks = &(lfs_block_t){badblock};
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bbbd_badblocks_count = 1;
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lfs_format(&lfs, &cfg) => 0;
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lfs_mount(&lfs, &cfg) => 0;
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for (int i = 1; i < 10; i++) {
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j] = '0'+i;
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}
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buffer[NAMEMULT] = '\0';
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lfs_mkdir(&lfs, (char*)buffer) => 0;
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buffer[NAMEMULT] = '/';
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j+NAMEMULT+1] = '0'+i;
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}
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buffer[2*NAMEMULT+1] = '\0';
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lfs_file_open(&lfs, &file, (char*)buffer,
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LFS_O_WRONLY | LFS_O_CREAT) => 0;
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size = NAMEMULT;
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for (int j = 0; j < i*FILEMULT; j++) {
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lfs_file_write(&lfs, &file, buffer, size) => size;
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}
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_unmount(&lfs) => 0;
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lfs_mount(&lfs, &cfg) => 0;
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for (int i = 1; i < 10; i++) {
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j] = '0'+i;
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}
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buffer[NAMEMULT] = '\0';
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lfs_stat(&lfs, (char*)buffer, &info) => 0;
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info.type => LFS_TYPE_DIR;
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buffer[NAMEMULT] = '/';
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j+NAMEMULT+1] = '0'+i;
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}
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buffer[2*NAMEMULT+1] = '\0';
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lfs_file_open(&lfs, &file, (char*)buffer, LFS_O_RDONLY) => 0;
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size = NAMEMULT;
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for (int j = 0; j < i*FILEMULT; j++) {
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uint8_t rbuffer[1024];
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lfs_file_read(&lfs, &file, rbuffer, size) => size;
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memcmp(buffer, rbuffer, size) => 0;
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}
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_unmount(&lfs) => 0;
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}
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'''
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[[case]] # single persistent blocks (can't erase)
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define.LFS_BD_ERASE = 'bbbd_erase'
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define.NAMEMULT = 64
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define.FILEMULT = 1
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code = '''
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for (lfs_block_t badblock = 2; badblock < LFS_BLOCK_COUNT; badblock++) {
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bbbd_badblocks = &(lfs_block_t){badblock};
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bbbd_badblocks_count = 1;
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lfs_format(&lfs, &cfg) => 0;
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lfs_mount(&lfs, &cfg) => 0;
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for (int i = 1; i < 10; i++) {
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j] = '0'+i;
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}
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buffer[NAMEMULT] = '\0';
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lfs_mkdir(&lfs, (char*)buffer) => 0;
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buffer[NAMEMULT] = '/';
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j+NAMEMULT+1] = '0'+i;
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}
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buffer[2*NAMEMULT+1] = '\0';
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lfs_file_open(&lfs, &file, (char*)buffer,
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LFS_O_WRONLY | LFS_O_CREAT) => 0;
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size = NAMEMULT;
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for (int j = 0; j < i*FILEMULT; j++) {
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lfs_file_write(&lfs, &file, buffer, size) => size;
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}
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_unmount(&lfs) => 0;
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lfs_mount(&lfs, &cfg) => 0;
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for (int i = 1; i < 10; i++) {
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j] = '0'+i;
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}
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buffer[NAMEMULT] = '\0';
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lfs_stat(&lfs, (char*)buffer, &info) => 0;
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info.type => LFS_TYPE_DIR;
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buffer[NAMEMULT] = '/';
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j+NAMEMULT+1] = '0'+i;
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}
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buffer[2*NAMEMULT+1] = '\0';
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lfs_file_open(&lfs, &file, (char*)buffer, LFS_O_RDONLY) => 0;
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size = NAMEMULT;
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for (int j = 0; j < i*FILEMULT; j++) {
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uint8_t rbuffer[1024];
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lfs_file_read(&lfs, &file, rbuffer, size) => size;
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memcmp(buffer, rbuffer, size) => 0;
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}
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_unmount(&lfs) => 0;
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}
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'''
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[[case]] # single unreadable blocks (can't read)
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define.LFS_BD_READ = 'bbbd_read'
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define.NAMEMULT = 64
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define.FILEMULT = 1
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code = '''
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for (lfs_block_t badblock = 2; badblock < LFS_BLOCK_COUNT; badblock++) {
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bbbd_badblocks = &(lfs_block_t){badblock};
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bbbd_badblocks_count = 1;
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lfs_format(&lfs, &cfg) => 0;
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lfs_mount(&lfs, &cfg) => 0;
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for (int i = 1; i < 10; i++) {
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j] = '0'+i;
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}
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buffer[NAMEMULT] = '\0';
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lfs_mkdir(&lfs, (char*)buffer) => 0;
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buffer[NAMEMULT] = '/';
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j+NAMEMULT+1] = '0'+i;
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}
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buffer[2*NAMEMULT+1] = '\0';
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lfs_file_open(&lfs, &file, (char*)buffer,
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LFS_O_WRONLY | LFS_O_CREAT) => 0;
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size = NAMEMULT;
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for (int j = 0; j < i*FILEMULT; j++) {
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lfs_file_write(&lfs, &file, buffer, size) => size;
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}
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_unmount(&lfs) => 0;
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lfs_mount(&lfs, &cfg) => 0;
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for (int i = 1; i < 10; i++) {
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j] = '0'+i;
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}
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buffer[NAMEMULT] = '\0';
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lfs_stat(&lfs, (char*)buffer, &info) => 0;
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info.type => LFS_TYPE_DIR;
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buffer[NAMEMULT] = '/';
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j+NAMEMULT+1] = '0'+i;
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}
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buffer[2*NAMEMULT+1] = '\0';
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lfs_file_open(&lfs, &file, (char*)buffer, LFS_O_RDONLY) => 0;
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size = NAMEMULT;
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for (int j = 0; j < i*FILEMULT; j++) {
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uint8_t rbuffer[1024];
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lfs_file_read(&lfs, &file, rbuffer, size) => size;
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memcmp(buffer, rbuffer, size) => 0;
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}
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_unmount(&lfs) => 0;
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}
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'''
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[[case]] # region corruption (causes cascading failures)
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define.LFS_BD_PROG = '"BADTYPE == 0 ? bbbd_prog : lfs_testbd_prog "'
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define.LFS_BD_ERASE = '"BADTYPE == 1 ? bbbd_erase : lfs_testbd_erase"'
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define.LFS_BD_READ = '"BADTYPE == 2 ? bbbd_read : lfs_testbd_read "'
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define.BADTYPE = 'range(3)'
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define.NAMEMULT = 64
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define.FILEMULT = 1
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code = '''
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bbbd_badblocks_count = LFS_BLOCK_COUNT/2;
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bbbd_badblocks = malloc(bbbd_badblocks_count*sizeof(lfs_block_t));
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for (size_t i = 0; i < bbbd_badblocks_count; i++) {
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bbbd_badblocks[i] = i+2;
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}
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lfs_format(&lfs, &cfg) => 0;
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lfs_mount(&lfs, &cfg) => 0;
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for (int i = 1; i < 10; i++) {
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j] = '0'+i;
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}
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buffer[NAMEMULT] = '\0';
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lfs_mkdir(&lfs, (char*)buffer) => 0;
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buffer[NAMEMULT] = '/';
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j+NAMEMULT+1] = '0'+i;
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}
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buffer[2*NAMEMULT+1] = '\0';
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lfs_file_open(&lfs, &file, (char*)buffer,
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LFS_O_WRONLY | LFS_O_CREAT) => 0;
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size = NAMEMULT;
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for (int j = 0; j < i*FILEMULT; j++) {
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lfs_file_write(&lfs, &file, buffer, size) => size;
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}
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_unmount(&lfs) => 0;
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lfs_mount(&lfs, &cfg) => 0;
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for (int i = 1; i < 10; i++) {
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j] = '0'+i;
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}
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buffer[NAMEMULT] = '\0';
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lfs_stat(&lfs, (char*)buffer, &info) => 0;
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info.type => LFS_TYPE_DIR;
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buffer[NAMEMULT] = '/';
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j+NAMEMULT+1] = '0'+i;
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}
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buffer[2*NAMEMULT+1] = '\0';
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lfs_file_open(&lfs, &file, (char*)buffer, LFS_O_RDONLY) => 0;
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size = NAMEMULT;
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for (int j = 0; j < i*FILEMULT; j++) {
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uint8_t rbuffer[1024];
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lfs_file_read(&lfs, &file, rbuffer, size) => size;
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memcmp(buffer, rbuffer, size) => 0;
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}
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_unmount(&lfs) => 0;
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free(bbbd_badblocks);
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'''
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[[case]] # alternating corruption (causes cascading failures)
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define.LFS_BD_PROG = '"BADTYPE == 0 ? bbbd_prog : lfs_testbd_prog "'
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define.LFS_BD_ERASE = '"BADTYPE == 1 ? bbbd_erase : lfs_testbd_erase"'
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define.LFS_BD_READ = '"BADTYPE == 2 ? bbbd_read : lfs_testbd_read "'
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define.BADTYPE = 'range(3)'
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define.NAMEMULT = 64
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define.FILEMULT = 1
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code = '''
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bbbd_badblocks_count = LFS_BLOCK_COUNT/2;
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bbbd_badblocks = malloc(bbbd_badblocks_count*sizeof(lfs_block_t));
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for (size_t i = 0; i < bbbd_badblocks_count; i++) {
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bbbd_badblocks[i] = (2*i) + 2;
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}
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lfs_format(&lfs, &cfg) => 0;
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lfs_mount(&lfs, &cfg) => 0;
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for (int i = 1; i < 10; i++) {
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j] = '0'+i;
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}
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buffer[NAMEMULT] = '\0';
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lfs_mkdir(&lfs, (char*)buffer) => 0;
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buffer[NAMEMULT] = '/';
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j+NAMEMULT+1] = '0'+i;
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}
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buffer[2*NAMEMULT+1] = '\0';
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lfs_file_open(&lfs, &file, (char*)buffer,
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LFS_O_WRONLY | LFS_O_CREAT) => 0;
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size = NAMEMULT;
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for (int j = 0; j < i*FILEMULT; j++) {
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lfs_file_write(&lfs, &file, buffer, size) => size;
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}
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_unmount(&lfs) => 0;
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lfs_mount(&lfs, &cfg) => 0;
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for (int i = 1; i < 10; i++) {
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j] = '0'+i;
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}
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buffer[NAMEMULT] = '\0';
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lfs_stat(&lfs, (char*)buffer, &info) => 0;
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info.type => LFS_TYPE_DIR;
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buffer[NAMEMULT] = '/';
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for (int j = 0; j < NAMEMULT; j++) {
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buffer[j+NAMEMULT+1] = '0'+i;
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}
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buffer[2*NAMEMULT+1] = '\0';
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lfs_file_open(&lfs, &file, (char*)buffer, LFS_O_RDONLY) => 0;
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size = NAMEMULT;
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for (int j = 0; j < i*FILEMULT; j++) {
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uint8_t rbuffer[1024];
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lfs_file_read(&lfs, &file, rbuffer, size) => size;
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memcmp(buffer, rbuffer, size) => 0;
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}
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lfs_file_close(&lfs, &file) => 0;
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}
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lfs_unmount(&lfs) => 0;
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free(bbbd_badblocks);
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'''
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