/* TODO: we should actually torture the PEB before marking it as bad */
static int mark_bad(const struct mtd_dev_info *mtd, struct ubi_scan_info *si, int eb)
{
int err;
if (!args.yes) {
normsg_cont("mark it as bad? Continue (yes/no) ");
if (!answer_is_yes())
return -1;
}
if (!args.quiet)
normsg_cont("marking block %d bad", eb);
if (!args.quiet)
printf("\n");
if (!mtd->bb_allowed) {
if (!args.quiet)
printf("\n");
return errmsg("bad blocks not supported by this flash");
}
err = mtd_mark_bad(mtd, args.node_fd, eb);
if (err)
return err;
si->bad_cnt += 1;
si->ec[eb] = EB_BAD;
return consecutive_bad_check(eb);
}
static int fio_mtd_maybe_mark_bad(struct thread_data *td,
struct fio_mtd_data *fmd,
struct io_u *io_u, int eb)
{
int ret;
if (errno == EIO) {
ret = mtd_mark_bad(&fmd->info, io_u->file->fd, eb);
if (ret != 0) {
io_u->error = errno;
td_verror(td, errno, "mtd_mark_bad");
return -1;
}
}
return 0;
}
static void test_mtd_mark_bad(void **state)
{
struct mtd_dev_info mtd;
loff_t seek;
int eb = 12;
memset(&mtd, 0, sizeof(mtd));
mtd.bb_allowed = 1;
mtd.eb_cnt = 1024;
mtd.eb_size = 128;
seek = (loff_t)eb * mtd.eb_size;
expect_ioctl(MEMSETBADBLOCK, 0, &seek);
int r = mtd_mark_bad(&mtd, 4, eb);
assert_int_equal(r, 0);
(void) state;
}
static int flash_write_nand(int mtdnum, struct img_type *img)
{
char mtd_device[LINESIZE];
struct flash_description *flash = get_flash_info();
struct mtd_dev_info *mtd = &flash->mtd_info[mtdnum].mtd;
int pagelen;
bool baderaseblock = false;
long long imglen = 0;
long long blockstart = -1;
long long offs;
unsigned char *filebuf = NULL;
size_t filebuf_max = 0;
size_t filebuf_len = 0;
long long mtdoffset = 0;
int ifd = img->fdin;
int fd = -1;
bool failed = true;
int ret;
unsigned char *writebuf = NULL;
pagelen = mtd->min_io_size;
imglen = img->size;
snprintf(mtd_device, sizeof(mtd_device), "/dev/mtd%d", mtdnum);
if ((imglen / pagelen) * mtd->min_io_size > mtd->size) {
ERROR("Image %s does not fit into mtd%d\n", img->fname, mtdnum);
return -EIO;
}
filebuf_max = mtd->eb_size / mtd->min_io_size * pagelen;
filebuf = calloc(1, filebuf_max);
erase_buffer(filebuf, filebuf_max);
if ((fd = open(mtd_device, O_RDWR)) < 0) {
ERROR( "%s: %s: %s", __func__, mtd_device, strerror(errno));
return -ENODEV;
}
/*
* Get data from input and write to the device while there is
* still input to read and we are still within the device
* bounds. Note that in the case of standard input, the input
* length is simply a quasi-boolean flag whose values are page
* length or zero.
*/
while ((imglen > 0 || writebuf < filebuf + filebuf_len)
&& mtdoffset < mtd->size) {
/*
* New eraseblock, check for bad block(s)
* Stay in the loop to be sure that, if mtdoffset changes because
* of a bad block, the next block that will be written to
* is also checked. Thus, we avoid errors if the block(s) after the
* skipped block(s) is also bad
*/
while (blockstart != (mtdoffset & (~mtd->eb_size + 1))) {
blockstart = mtdoffset & (~mtd->eb_size + 1);
offs = blockstart;
/*
* if writebuf == filebuf, we are rewinding so we must
* not reset the buffer but just replay it
*/
if (writebuf != filebuf) {
erase_buffer(filebuf, filebuf_len);
filebuf_len = 0;
writebuf = filebuf;
}
baderaseblock = false;
do {
ret = mtd_is_bad(mtd, fd, offs / mtd->eb_size);
if (ret < 0) {
ERROR("mtd%d: MTD get bad block failed", mtdnum);
goto closeall;
} else if (ret == 1) {
baderaseblock = true;
}
if (baderaseblock) {
mtdoffset = blockstart + mtd->eb_size;
if (mtdoffset > mtd->size) {
ERROR("too many bad blocks, cannot complete request");
goto closeall;
}
}
offs += mtd->eb_size;
} while (offs < blockstart + mtd->eb_size);
}
/* Read more data from the input if there isn't enough in the buffer */
if (writebuf + mtd->min_io_size > filebuf + filebuf_len) {
size_t readlen = mtd->min_io_size;
size_t alreadyread = (filebuf + filebuf_len) - writebuf;
size_t tinycnt = alreadyread;
ssize_t cnt = 0;
while (tinycnt < readlen) {
cnt = read(ifd, writebuf + tinycnt, readlen - tinycnt);
if (cnt == 0) { /* EOF */
break;
} else if (cnt < 0) {
ERROR("File I/O error on input");
goto closeall;
}
tinycnt += cnt;
}
/* No padding needed - we are done */
if (tinycnt == 0) {
imglen = 0;
break;
}
/* Padding */
if (tinycnt < readlen) {
erase_buffer(writebuf + tinycnt, readlen - tinycnt);
}
filebuf_len += readlen - alreadyread;
imglen -= tinycnt - alreadyread;
}
/* Write out data */
ret = mtd_write(flash->libmtd, mtd, fd, mtdoffset / mtd->eb_size,
mtdoffset % mtd->eb_size,
writebuf,
mtd->min_io_size,
NULL,
0,
MTD_OPS_PLACE_OOB);
if (ret) {
long long i;
if (errno != EIO) {
ERROR("mtd%d: MTD write failure", mtdnum);
goto closeall;
}
/* Must rewind to blockstart if we can */
writebuf = filebuf;
for (i = blockstart; i < blockstart + mtd->eb_size; i += mtd->eb_size) {
if (mtd_erase(flash->libmtd, mtd, fd, i / mtd->eb_size)) {
int errno_tmp = errno;
TRACE("mtd%d: MTD Erase failure", mtdnum);
if (errno_tmp != EIO)
goto closeall;
}
}
TRACE("Marking block at %08llx bad\n",
mtdoffset & (~mtd->eb_size + 1));
if (mtd_mark_bad(mtd, fd, mtdoffset / mtd->eb_size)) {
ERROR("mtd%d: MTD Mark bad block failure", mtdnum);
goto closeall;
}
mtdoffset = blockstart + mtd->eb_size;
continue;
}
mtdoffset += mtd->min_io_size;
writebuf += pagelen;
}
failed = false;
closeall:
free(filebuf);
close(fd);
if (failed) {
ERROR("Installing image %s into mtd%d failed\n",
img->fname,
mtdnum);
return -1;
}
return 0;
}
/*
* Main program
*/
int main(int argc, char * const argv[])
{
int cnt = 0;
int fd = -1;
int ifd = -1;
int imglen = 0, pagelen;
bool baderaseblock = false;
long long blockstart = -1;
struct mtd_dev_info mtd;
long long offs;
int ret;
int oobinfochanged = 0;
struct nand_oobinfo old_oobinfo;
bool failed = true;
// contains all the data read from the file so far for the current eraseblock
unsigned char *filebuf = NULL;
size_t filebuf_max = 0;
size_t filebuf_len = 0;
// points to the current page inside filebuf
unsigned char *writebuf = NULL;
// points to the OOB for the current page in filebuf
unsigned char *oobreadbuf = NULL;
unsigned char *oobbuf = NULL;
libmtd_t mtd_desc;
int ebsize_aligned;
process_options(argc, argv);
if (pad && writeoob) {
fprintf(stderr, "Can't pad when oob data is present.\n");
exit(EXIT_FAILURE);
}
/* Open the device */
if ((fd = open(mtd_device, O_RDWR)) == -1) {
perror(mtd_device);
exit(EXIT_FAILURE);
}
mtd_desc = libmtd_open();
if (!mtd_desc)
return errmsg("can't initialize libmtd");
/* Fill in MTD device capability structure */
if (mtd_get_dev_info(mtd_desc, mtd_device, &mtd) < 0)
return errmsg("mtd_get_dev_info failed");
/*
* Pretend erasesize is specified number of blocks - to match jffs2
* (virtual) block size
* Use this value throughout unless otherwise necessary
*/
ebsize_aligned = mtd.eb_size * blockalign;
if (mtdoffset & (mtd.min_io_size - 1)) {
fprintf(stderr, "The start address is not page-aligned !\n"
"The pagesize of this NAND Flash is 0x%x.\n",
mtd.min_io_size);
close(fd);
exit(EXIT_FAILURE);
}
if (autoplace) {
/* Read the current oob info */
if (ioctl(fd, MEMGETOOBSEL, &old_oobinfo) != 0) {
perror("MEMGETOOBSEL");
close(fd);
exit(EXIT_FAILURE);
}
// autoplace ECC ?
if (old_oobinfo.useecc != MTD_NANDECC_AUTOPLACE) {
if (ioctl(fd, MEMSETOOBSEL, &autoplace_oobinfo) != 0) {
perror("MEMSETOOBSEL");
close(fd);
exit(EXIT_FAILURE);
}
oobinfochanged = 1;
}
}
if (noecc) {
ret = ioctl(fd, MTDFILEMODE, MTD_MODE_RAW);
if (ret == 0) {
oobinfochanged = 2;
} else {
switch (errno) {
case ENOTTY:
if (ioctl(fd, MEMGETOOBSEL, &old_oobinfo) != 0) {
perror("MEMGETOOBSEL");
close(fd);
exit(EXIT_FAILURE);
}
if (ioctl(fd, MEMSETOOBSEL, &none_oobinfo) != 0) {
perror("MEMSETOOBSEL");
close(fd);
exit(EXIT_FAILURE);
}
oobinfochanged = 1;
break;
default:
perror("MTDFILEMODE");
close(fd);
exit(EXIT_FAILURE);
}
}
}
/*
* force oob layout for jffs2 or yaffs ?
* Legacy support
*/
if (forcejffs2 || forceyaffs) {
struct nand_oobinfo *oobsel = forcejffs2 ? &jffs2_oobinfo : &yaffs_oobinfo;
if (autoplace) {
fprintf(stderr, "Autoplacement is not possible for legacy -j/-y options\n");
goto restoreoob;
}
if ((old_oobinfo.useecc == MTD_NANDECC_AUTOPLACE) && !forcelegacy) {
fprintf(stderr, "Use -f option to enforce legacy placement on autoplacement enabled mtd device\n");
goto restoreoob;
}
if (mtd.oob_size == 8) {
if (forceyaffs) {
fprintf(stderr, "YAFSS cannot operate on 256 Byte page size");
goto restoreoob;
}
/* Adjust number of ecc bytes */
jffs2_oobinfo.eccbytes = 3;
}
if (ioctl(fd, MEMSETOOBSEL, oobsel) != 0) {
perror("MEMSETOOBSEL");
goto restoreoob;
}
}
/* Determine if we are reading from standard input or from a file. */
if (strcmp(img, standard_input) == 0) {
ifd = STDIN_FILENO;
} else {
ifd = open(img, O_RDONLY);
}
if (ifd == -1) {
perror(img);
goto restoreoob;
}
pagelen = mtd.min_io_size + ((writeoob) ? mtd.oob_size : 0);
/*
* For the standard input case, the input size is merely an
* invariant placeholder and is set to the write page
* size. Otherwise, just use the input file size.
*
* TODO: Add support for the -l,--length=length option (see
* previous discussion by Tommi Airikka <*****@*****.**> at
* <http://lists.infradead.org/pipermail/linux-mtd/2008-September/
* 022913.html>
*/
if (ifd == STDIN_FILENO) {
imglen = pagelen;
} else {
imglen = lseek(ifd, 0, SEEK_END);
lseek(ifd, 0, SEEK_SET);
}
// Check, if file is page-aligned
if ((!pad) && ((imglen % pagelen) != 0)) {
fprintf(stderr, "Input file is not page-aligned. Use the padding "
"option.\n");
goto closeall;
}
// Check, if length fits into device
if (((imglen / pagelen) * mtd.min_io_size) > (mtd.size - mtdoffset)) {
fprintf(stderr, "Image %d bytes, NAND page %d bytes, OOB area %d"
" bytes, device size %lld bytes\n",
imglen, pagelen, mtd.oob_size, mtd.size);
perror("Input file does not fit into device");
goto closeall;
}
/*
* Allocate a buffer big enough to contain all the data (OOB included)
* for one eraseblock. The order of operations here matters; if ebsize
* and pagelen are large enough, then "ebsize_aligned * pagelen" could
* overflow a 32-bit data type.
*/
filebuf_max = ebsize_aligned / mtd.min_io_size * pagelen;
filebuf = xmalloc(filebuf_max);
erase_buffer(filebuf, filebuf_max);
oobbuf = xmalloc(mtd.oob_size);
erase_buffer(oobbuf, mtd.oob_size);
/*
* Get data from input and write to the device while there is
* still input to read and we are still within the device
* bounds. Note that in the case of standard input, the input
* length is simply a quasi-boolean flag whose values are page
* length or zero.
*/
while (((imglen > 0) || (writebuf < (filebuf + filebuf_len)))
&& (mtdoffset < mtd.size)) {
/*
* New eraseblock, check for bad block(s)
* Stay in the loop to be sure that, if mtdoffset changes because
* of a bad block, the next block that will be written to
* is also checked. Thus, we avoid errors if the block(s) after the
* skipped block(s) is also bad (number of blocks depending on
* the blockalign).
*/
while (blockstart != (mtdoffset & (~ebsize_aligned + 1))) {
blockstart = mtdoffset & (~ebsize_aligned + 1);
offs = blockstart;
// if writebuf == filebuf, we are rewinding so we must not
// reset the buffer but just replay it
if (writebuf != filebuf) {
erase_buffer(filebuf, filebuf_len);
filebuf_len = 0;
writebuf = filebuf;
}
baderaseblock = false;
if (!quiet)
fprintf(stdout, "Writing data to block %lld at offset 0x%llx\n",
blockstart / ebsize_aligned, blockstart);
/* Check all the blocks in an erase block for bad blocks */
if (noskipbad)
continue;
do {
if ((ret = mtd_is_bad(&mtd, fd, offs / ebsize_aligned)) < 0) {
sys_errmsg("%s: MTD get bad block failed", mtd_device);
goto closeall;
} else if (ret == 1) {
baderaseblock = true;
if (!quiet)
fprintf(stderr, "Bad block at %llx, %u block(s) "
"from %llx will be skipped\n",
offs, blockalign, blockstart);
}
if (baderaseblock) {
mtdoffset = blockstart + ebsize_aligned;
}
offs += ebsize_aligned / blockalign;
} while (offs < blockstart + ebsize_aligned);
}
// Read more data from the input if there isn't enough in the buffer
if ((writebuf + mtd.min_io_size) > (filebuf + filebuf_len)) {
int readlen = mtd.min_io_size;
int alreadyread = (filebuf + filebuf_len) - writebuf;
int tinycnt = alreadyread;
while (tinycnt < readlen) {
cnt = read(ifd, writebuf + tinycnt, readlen - tinycnt);
if (cnt == 0) { // EOF
break;
} else if (cnt < 0) {
perror("File I/O error on input");
goto closeall;
}
tinycnt += cnt;
}
/* No padding needed - we are done */
if (tinycnt == 0) {
/*
* For standard input, set imglen to 0 to signal
* the end of the "file". For nonstandard input,
* leave it as-is to detect an early EOF.
*/
if (ifd == STDIN_FILENO) {
imglen = 0;
}
break;
}
/* Padding */
if (tinycnt < readlen) {
if (!pad) {
fprintf(stderr, "Unexpected EOF. Expecting at least "
"%d more bytes. Use the padding option.\n",
readlen - tinycnt);
goto closeall;
}
erase_buffer(writebuf + tinycnt, readlen - tinycnt);
}
filebuf_len += readlen - alreadyread;
if (ifd != STDIN_FILENO) {
imglen -= tinycnt - alreadyread;
}
else if (cnt == 0) {
/* No more bytes - we are done after writing the remaining bytes */
imglen = 0;
}
}
if (writeoob) {
oobreadbuf = writebuf + mtd.min_io_size;
// Read more data for the OOB from the input if there isn't enough in the buffer
if ((oobreadbuf + mtd.oob_size) > (filebuf + filebuf_len)) {
int readlen = mtd.oob_size;
int alreadyread = (filebuf + filebuf_len) - oobreadbuf;
int tinycnt = alreadyread;
while (tinycnt < readlen) {
cnt = read(ifd, oobreadbuf + tinycnt, readlen - tinycnt);
if (cnt == 0) { // EOF
break;
} else if (cnt < 0) {
perror("File I/O error on input");
goto closeall;
}
tinycnt += cnt;
}
if (tinycnt < readlen) {
fprintf(stderr, "Unexpected EOF. Expecting at least "
"%d more bytes for OOB\n", readlen - tinycnt);
goto closeall;
}
filebuf_len += readlen - alreadyread;
if (ifd != STDIN_FILENO) {
imglen -= tinycnt - alreadyread;
}
else if (cnt == 0) {
/* No more bytes - we are done after writing the remaining bytes */
imglen = 0;
}
}
if (!noecc) {
int i, start, len;
int tags_pos = 0;
/*
* We use autoplacement and have the oobinfo with the autoplacement
* information from the kernel available
*
* Modified to support out of order oobfree segments,
* such as the layout used by diskonchip.c
*/
if (!oobinfochanged && (old_oobinfo.useecc == MTD_NANDECC_AUTOPLACE)) {
for (i = 0; old_oobinfo.oobfree[i][1]; i++) {
/* Set the reserved bytes to 0xff */
start = old_oobinfo.oobfree[i][0];
len = old_oobinfo.oobfree[i][1];
if (rawoob)
memcpy(oobbuf + start,
oobreadbuf + start, len);
else
memcpy(oobbuf + start,
oobreadbuf + tags_pos, len);
tags_pos += len;
}
} else {
/* Set at least the ecc byte positions to 0xff */
start = old_oobinfo.eccbytes;
len = mtd.oob_size - start;
memcpy(oobbuf + start,
oobreadbuf + start,
len);
}
}
/* Write OOB data first, as ecc will be placed in there */
if (mtd_write_oob(mtd_desc, &mtd, fd, mtdoffset,
mtd.oob_size,
noecc ? oobreadbuf : oobbuf)) {
sys_errmsg("%s: MTD writeoob failure", mtd_device);
goto closeall;
}
}
/* Write out the Page data */
if (mtd_write(&mtd, fd, mtdoffset / mtd.eb_size, mtdoffset % mtd.eb_size,
writebuf, mtd.min_io_size)) {
int i;
if (errno != EIO) {
sys_errmsg("%s: MTD write failure", mtd_device);
goto closeall;
}
/* Must rewind to blockstart if we can */
writebuf = filebuf;
fprintf(stderr, "Erasing failed write from %#08llx to %#08llx\n",
blockstart, blockstart + ebsize_aligned - 1);
for (i = blockstart; i < blockstart + ebsize_aligned; i += mtd.eb_size) {
if (mtd_erase(mtd_desc, &mtd, fd, mtd.eb_size)) {
int errno_tmp = errno;
sys_errmsg("%s: MTD Erase failure", mtd_device);
if (errno_tmp != EIO) {
goto closeall;
}
}
}
if (markbad) {
fprintf(stderr, "Marking block at %08llx bad\n",
mtdoffset & (~mtd.eb_size + 1));
if (mtd_mark_bad(&mtd, fd, mtdoffset / mtd.eb_size)) {
sys_errmsg("%s: MTD Mark bad block failure", mtd_device);
goto closeall;
}
}
mtdoffset = blockstart + ebsize_aligned;
continue;
}
mtdoffset += mtd.min_io_size;
writebuf += pagelen;
}
failed = false;
closeall:
close(ifd);
restoreoob:
libmtd_close(mtd_desc);
free(filebuf);
free(oobbuf);
if (oobinfochanged == 1) {
if (ioctl(fd, MEMSETOOBSEL, &old_oobinfo) != 0) {
perror("MEMSETOOBSEL");
close(fd);
exit(EXIT_FAILURE);
}
}
close(fd);
if (failed
|| ((ifd != STDIN_FILENO) && (imglen > 0))
|| (writebuf < (filebuf + filebuf_len))) {
perror("Data was only partially written due to error\n");
exit(EXIT_FAILURE);
}
/* Return happy */
return EXIT_SUCCESS;
}
