void do_client() {
char obuffer[1024] = {0}, ibuffer[1024] = {0};
int obuffer_offset = 0, stop = 0;
fflush (stdout); /* get anything out of the buffer */
conio_init();
show_buffer (obuffer, obuffer_offset);
do {
if (net_query (chan)) {
int col = 10;
int x = net_receive (chan, ibuffer, 1024, NULL);
if (x<0)
strcpy (ibuffer, "!!! (local) error reading packet");
else
ibuffer[x] = 0;
switch (ibuffer[0]) {
case '*': col = 9; break;
case '+':
case '-': col = 11; break;
case '!': col = 12; break;
}
write_to_window (ibuffer, col);
show_buffer (obuffer, obuffer_offset);
if (!strcmp (ibuffer, "*** go away")) stop = 1;
if (!strcmp (ibuffer, "*** server shutting down")) stop = 1;
}
if (conio_kbhit()) {
char ch = conio_getch();
switch (ch) {
case 7:
case 8:
if (obuffer_offset) obuffer[--obuffer_offset] = 0;
show_buffer (obuffer, obuffer_offset);
break;
case 13:
net_send (chan, obuffer, strlen (obuffer));
obuffer[obuffer_offset = 0] = 0;
show_buffer (obuffer, obuffer_offset);
break;
default:
obuffer[obuffer_offset] = ch;
obuffer[++obuffer_offset] = 0;
show_buffer (obuffer, obuffer_offset);
break;
}
}
} while (!stop);
erase_buffer();
conio_exit();
}
void write_to_window (char *buf, int col) {
erase_buffer();
conio_gotoxy (1,24);
conio_textcolor (col);
conio_cputs (buf);
conio_cputs ("\n");
conio_cputs ("\n");
}
void shell(void){
Task_t * c_t = get_current_task();
ttyScreen_t * screen = getScreen(c_t);
shellLine_t * lineBuffer = getLineBuffer(c_t);
char c;
command_t * a = (command_t *) malloc(sizeof(command_t));
printf("BrunOS tty%d:~$ ", c_t->tty_number);
while( (c=getc()) != '\n' ){
switch(c){
case '\b':
if( lineBuffer->pos>0){
lineBuffer->buffer[--lineBuffer->pos]=0;
putc('\b');
}
break;
case '\t':
parse_command(a);
auto_complete(a);
break;
default:
if(lineBuffer->pos < lineBuffer->size-1){
lineBuffer->buffer[lineBuffer->pos++]=c;
lineBuffer->buffer[lineBuffer->pos]=0;
}
putc(c);
break;
}
}
putc('\n');
parse_command(a);
run_command(a);
lineBuffer->pos=0;
erase_buffer();
}
void auto_complete(command_t *command){
Task_t * c_t = get_current_task();
ttyScreen_t * screen = getScreen(c_t);
shellLine_t * lineBuffer = getLineBuffer(c_t);
int i, j, size, lenght, eq = TRUE;
lenght = strlen(command->name);
char * commName;
if (streq(command->name, ""))
return;
for (i = 0; i < NUM_COMMANDS; i++) {
commName = commands[i].name;
for (j = 0; j < lenght && eq == TRUE; j++) {
if (command->name[j] != commName[j])
eq = FALSE;
if (j == strlen(commName) - 1)
eq = FALSE;
}
if (eq == TRUE) {
size = strlen(lineBuffer->buffer);
erase_buffer();
clearfromto(screen->wpos - size * 2,
screen->wpos);
lineBuffer->pos = 0;
lenght = strlen(commName);
for (j = 0; j < lenght; j++) {
lineBuffer->buffer[lineBuffer->pos++]
= commName[j];
lineBuffer->buffer[lineBuffer->pos]
= 0;
putc(commName[j]);
}
}
eq = !eq;
}
command->name[0] = 0;
}
bool defragment(SimpleSignal* sig) {
if (!sig->isFragmented())
return true;
Uint32 fragId = sig->getFragmentId();
NodeId nodeId = refToNode(sig->header.theSendersBlockRef);
DefragBuffer* dbuf;
if(sig->isFirstFragment()){
// Make sure buffer does not exist
if (find_buffer(nodeId, fragId))
abort();
dbuf = new DefragBuffer(nodeId, fragId);
m_buffers.push_back(dbuf);
} else {
dbuf = find_buffer(nodeId, fragId);
if (dbuf == NULL)
abort();
}
if (dbuf->m_buffer.append(sig->ptr[0].p, sig->ptr[0].sz * sizeof(Uint32)))
abort(); // OOM
if (!sig->isLastFragment())
return false;
// Copy defragmented data into signal...
int length = dbuf->m_buffer.length();
delete[] sig->ptr[0].p;
sig->ptr[0].sz = (length+3)/4;
sig->ptr[0].p = new Uint32[sig->ptr[0].sz];
memcpy(sig->ptr[0].p, dbuf->m_buffer.get_data(), length);
// erase the buffer data
erase_buffer(dbuf);
return true;
}
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;
}
int nandwrite_mlc(char *image_path, int dev, loff_t mtdoffset,
struct mtd_info_user *meminfo)
{
int cnt = 0;
int image = -1;
int imglen = 0, pagesize, blocksize, badblocks = 0;
unsigned int offs;
int ret;
bool read_next = true;
unsigned char *writebuf = NULL;
int retCode = 0;
uint32_t nblock, npage, skip;
int total_blocks, pagesperblock, blockskip;
image = open(image_path, O_RDONLY);
if (image == -1) {
perror("open error");
return -1;
}
imglen = lseek(image, 0, SEEK_END);
lseek (image, 0, SEEK_SET);
pagesize = meminfo->writesize;
blocksize = meminfo->erasesize;
// Check, if length fits into device
total_blocks = meminfo->size / blocksize;
pagesperblock = blocksize / pagesize;
blockskip = (MLC_MAX_IMG_SIZ / pagesize + 1) * CONFIG_PAGE_REPLICATION * CONFIG_BLOCK_REPLICATION / pagesperblock;
if ((blockskip * 2) > total_blocks || imglen > MLC_MAX_IMG_SIZ) {
show_nand_info(stderr, meminfo);
perror("Assigned max image size does not fit into device");
retCode = -2;
goto closeall;
}
// Allocate a buffer big enough to contain all the data for one page
writebuf = (unsigned char*)MALLOC(pagesize);
erase_buffer(writebuf, pagesize);
while ((imglen > 0) && (mtdoffset < meminfo->size))
{
int readlen = pagesize;
int tinycnt = 0;
skip = 0;
badblocks = 0;
if (read_next) {
erase_buffer(writebuf, readlen);
/* Read up to one page data */
while (tinycnt < readlen) {
cnt = read(image, writebuf + tinycnt, readlen - tinycnt);
if (cnt == 0) { /* EOF */
break;
} else if (cnt < 0) {
perror ("File I/O error on input");
retCode = -3;
goto closeall;
}
tinycnt += cnt;
}
imglen -= tinycnt;
read_next = false;
}
for (nblock = 0; nblock < CONFIG_BLOCK_REPLICATION; nblock++)
{
// offs = mtdoffset + nblock * blocksize + skip * blocksize;
offs = mtdoffset + skip * blocksize;
// skip bad blocks
ret = nand_block_isbad(dev, offs);
if (ret < 0) {
retCode = -5;
goto closeall;
} else if (ret == 1) {
#if 0
loff_t checkblock;
char have_copy = 0;
if (!quiet) {
fprintf(stderr, "Skip bad block at address 0x%x, (block %u)\n",
offs, offs / blocksize);
}
badblocks++;
// make sure we have at least one copy
for (checkblock = 0; checkblock < CONFIG_BLOCK_REPLICATION; checkblock++)
{
offs = mtdoffset + checkblock * blocksize + skip * blocksize;
ret = nand_block_isbad(dev, offs);
if (ret < 0) goto closeall;
else if (ret == 0) {
have_copy = 1;
break;
}
}
if (!have_copy)
{
printf("Too many bad blocks\n");
goto closeall;
}
skip += blockskip;
continue;
#else
if (!quiet) {
uint32_t block_mask = meminfo->erasesize - 1;
printf("Bad block 0x%x\n", (offs & (~block_mask)));
}
if (++badblocks >= CONFIG_BLOCK_REPLICATION) {
printf("Too many bad blocks\n");
retCode = -4;
goto closeall;
}
skip += blockskip;
continue;
#endif
}
for (npage = 0; npage < CONFIG_PAGE_REPLICATION; npage++)
{
offs = mtdoffset + npage * pagesize + skip * blocksize;
/* Write out the Page data */
if (pwrite(dev, writebuf, pagesize, offs) != pagesize) {
fprintf(stderr, "Bad page for copy %u of block %x for address %x\n",
npage, nblock, offs);
}
}
skip += blockskip;
read_next = true;
} // for nblock
mtdoffset += pagesize * CONFIG_PAGE_REPLICATION;
} // while (imglen > 0)
closeall:
if (writebuf) {
free(writebuf);
}
close(image);
if (imglen > 0)
{
fprintf(stderr, "Data was only partially written due to error\n");
}
return retCode;
}
int write_fec(char *infile, int dev, loff_t mtdoffset,
struct mtd_info_user *meminfo)
{
int image = -1;
int n, retCode = 0;
unsigned char *inbuf, *outbuf;
int pagesize = meminfo->writesize;
int rdsize = pagesize / FEC_ENCODE_SCALING;
if (lseek(dev, mtdoffset, SEEK_SET) != mtdoffset) {
perror("lseek error");
return -4;
}
if ((image = open(infile, O_RDONLY)) < 0) {
perror("open error");
return -1;
}
inbuf = (unsigned char *)MALLOC(rdsize);
outbuf = (unsigned char *)MALLOC(pagesize);
while ( (n = read(image, inbuf, rdsize)) > 0) {
unsigned char *ppos = outbuf;
int i, j;
erase_buffer(outbuf, pagesize);
for (i = 0; i < n; i++) {
unsigned char plain = inbuf[i];
unsigned char cypher;
for (j = 0; j < 8; j++) {
if (plain & 1)
cypher = 0x55;
else
cypher = 0xAA;
plain >>= 1;
*ppos++ = cypher;
}
}
while (nand_block_isbad(dev, mtdoffset)) {
mtdoffset += meminfo->erasesize;
if (lseek(dev, mtdoffset, SEEK_SET) != mtdoffset) {
perror("lseek error");
retCode = -4;
goto out;
}
}
/* Should check bad block first */
if (write(dev, outbuf, pagesize) != pagesize) {
perror("Write Error");
retCode = -2;
goto out;
}
mtdoffset += pagesize;
}
if (n < 0) {
perror("Read Error");
retCode = -3;
}
out:
close(image);
free(inbuf);
free(outbuf);
return retCode;
}
/*
* 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;
int blockstart = -1;
struct mtd_info_user meminfo;
struct mtd_oob_buf oob;
loff_t offs;
int ret, readlen;
int oobinfochanged = 0;
struct nand_oobinfo old_oobinfo;
int readcnt = 0;
bool failed = true;
process_options(argc, argv);
erase_buffer(oobbuf, sizeof(oobbuf));
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);
}
/* Fill in MTD device capability structure */
if (ioctl(fd, MEMGETINFO, &meminfo) != 0) {
perror("MEMGETINFO");
close(fd);
exit (EXIT_FAILURE);
}
/* Set erasesize to specified number of blocks - to match jffs2
* (virtual) block size */
meminfo.erasesize *= blockalign;
/* Make sure device page sizes are valid */
if (!(meminfo.oobsize == 16 && meminfo.writesize == 512) &&
!(meminfo.oobsize == 8 && meminfo.writesize == 256) &&
!(meminfo.oobsize == 64 && meminfo.writesize == 2048) &&
!(meminfo.oobsize == 128 && meminfo.writesize == 4096)) {
fprintf(stderr, "Unknown flash (not normal NAND)\n");
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 (autoplace && (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, (void *) 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 (meminfo.oobsize == 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;
}
}
oob.length = meminfo.oobsize;
oob.ptr = noecc ? oobreadbuf : oobbuf;
/* 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;
}
/* For now, don't allow writing oob when reading from standard input. */
if (ifd == STDIN_FILENO && writeoob) {
fprintf(stderr, "Can't write oob when reading from standard input.\n");
goto closeall;
}
pagelen = meminfo.writesize + ((writeoob) ? meminfo.oobsize : 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) * meminfo.writesize) > (meminfo.size - mtdoffset)) {
fprintf (stderr, "Image %d bytes, NAND page %d bytes, OOB area %u bytes, device size %u bytes\n",
imglen, pagelen, meminfo.writesize, meminfo.size);
perror ("Input file does not fit into device");
goto closeall;
}
/*
* 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 && (mtdoffset < meminfo.size)) {
// new eraseblock , check for bad block(s)
// Stay in the loop to be sure if the mtdoffset changes because
// of a bad block, that the next block that will be written to
// is also checked. Thus avoiding errors if the block(s) after the
// skipped block(s) is also bad (number of blocks depending on
// the blockalign
while (blockstart != (mtdoffset & (~meminfo.erasesize + 1))) {
blockstart = mtdoffset & (~meminfo.erasesize + 1);
offs = blockstart;
baderaseblock = false;
if (!quiet)
fprintf (stdout, "Writing data to block %d at offset 0x%x\n",
blockstart / meminfo.erasesize, blockstart);
/* Check all the blocks in an erase block for bad blocks */
do {
if ((ret = ioctl(fd, MEMGETBADBLOCK, &offs)) < 0) {
perror("ioctl(MEMGETBADBLOCK)");
goto closeall;
}
if (ret == 1) {
baderaseblock = true;
if (!quiet)
fprintf (stderr, "Bad block at %x, %u block(s) "
"from %x will be skipped\n",
(int) offs, blockalign, blockstart);
}
if (baderaseblock) {
mtdoffset = blockstart + meminfo.erasesize;
}
offs += meminfo.erasesize / blockalign ;
} while ( offs < blockstart + meminfo.erasesize );
}
readlen = meminfo.writesize;
if (ifd != STDIN_FILENO) {
int tinycnt = 0;
if (pad && (imglen < readlen))
{
readlen = imglen;
erase_buffer(writebuf + readlen, meminfo.writesize - readlen);
}
/* Read Page Data from input file */
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 file");
goto closeall;
}
tinycnt += cnt;
}
} else {
int tinycnt = 0;
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 stdin");
goto closeall;
}
tinycnt += cnt;
}
/* No padding needed - we are done */
if (tinycnt == 0) {
imglen = 0;
break;
}
/* No more bytes - we are done after writing the remaining bytes */
if (cnt == 0) {
imglen = 0;
}
/* Padding */
if (pad && (tinycnt < readlen)) {
erase_buffer(writebuf + tinycnt, meminfo.writesize - tinycnt);
}
}
if (writeoob) {
int tinycnt = 0;
while(tinycnt < meminfo.oobsize) {
cnt = read(ifd, oobreadbuf + tinycnt, meminfo.oobsize - tinycnt);
if (cnt == 0) { // EOF
break;
} else if (cnt < 0) {
perror ("File I/O error on input file");
goto closeall;
}
tinycnt += cnt;
}
if (!noecc) {
int i, start, len;
/*
* 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];
memcpy(oobbuf + start,
oobreadbuf + start,
len);
}
} else {
/* Set at least the ecc byte positions to 0xff */
start = old_oobinfo.eccbytes;
len = meminfo.oobsize - start;
memcpy(oobbuf + start,
oobreadbuf + start,
len);
}
}
/* Write OOB data first, as ecc will be placed in there*/
oob.start = mtdoffset;
if (ioctl(fd, MEMWRITEOOB, &oob) != 0) {
perror ("ioctl(MEMWRITEOOB)");
goto closeall;
}
imglen -= meminfo.oobsize;
}
/* Write out the Page data */
if (pwrite(fd, writebuf, meminfo.writesize, mtdoffset) != meminfo.writesize) {
int rewind_blocks;
off_t rewind_bytes;
erase_info_t erase;
perror ("pwrite");
if (errno != EIO) {
goto closeall;
}
/* Must rewind to blockstart if we can */
rewind_blocks = (mtdoffset - blockstart) / meminfo.writesize; /* Not including the one we just attempted */
rewind_bytes = (rewind_blocks * meminfo.writesize) + readlen;
if (writeoob)
rewind_bytes += (rewind_blocks + 1) * meminfo.oobsize;
if (lseek(ifd, -rewind_bytes, SEEK_CUR) == -1) {
perror("lseek");
fprintf(stderr, "Failed to seek backwards to recover from write error\n");
goto closeall;
}
erase.start = blockstart;
erase.length = meminfo.erasesize;
fprintf(stderr, "Erasing failed write from %08lx-%08lx\n",
(long)erase.start, (long)erase.start+erase.length-1);
if (ioctl(fd, MEMERASE, &erase) != 0) {
perror("MEMERASE");
if (errno != EIO) {
goto closeall;
}
}
if (markbad) {
loff_t bad_addr = mtdoffset & (~(meminfo.erasesize / blockalign) + 1);
fprintf(stderr, "Marking block at %08lx bad\n", (long)bad_addr);
if (ioctl(fd, MEMSETBADBLOCK, &bad_addr)) {
perror("MEMSETBADBLOCK");
goto closeall;
}
}
mtdoffset = blockstart + meminfo.erasesize;
imglen += rewind_blocks * meminfo.writesize;
continue;
}
if (ifd != STDIN_FILENO) {
imglen -= readlen;
}
mtdoffset += meminfo.writesize;
}
failed = false;
closeall:
close(ifd);
restoreoob:
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))) {
perror ("Data was only partially written due to error\n");
exit (EXIT_FAILURE);
}
/* Return happy */
return EXIT_SUCCESS;
}
/*
* 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;
}
int divideByZero(int argc, char *argv){
erase_buffer();
int x = 1;
int y = 1;
int z = x / --y;
}