static int cmd_bio(int argc, const cmd_args *argv)
{
int rc = 0;
if (argc < 2) {
printf("not enough arguments:\n");
usage:
printf("%s list\n", argv[0].str);
printf("%s read <device> <address> <offset> <len>\n", argv[0].str);
printf("%s write <device> <address> <offset> <len>\n", argv[0].str);
printf("%s erase <device> <offset> <len>\n", argv[0].str);
printf("%s ioctl <device> <request> <arg>\n", argv[0].str);
printf("%s remove <device>\n", argv[0].str);
#if WITH_LIB_PARTITION
printf("%s partscan <device> [offset]\n", argv[0].str);
#endif
return -1;
}
if (!strcmp(argv[1].str, "list")) {
bio_dump_devices();
} else if (!strcmp(argv[1].str, "read")) {
if (argc < 6) {
printf("not enough arguments:\n");
goto usage;
}
addr_t address = argv[3].u;
off_t offset = argv[4].u; // XXX use long
size_t len = argv[5].u;
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
time_t t = current_time();
ssize_t err = bio_read(dev, (void *)address, offset, len);
t = current_time() - t;
dprintf(INFO, "bio_read returns %d, took %u msecs (%d bytes/sec)\n", (int)err, (uint)t, (uint32_t)((uint64_t)err * 1000 / t));
bio_close(dev);
rc = err;
} else if (!strcmp(argv[1].str, "write")) {
if (argc < 6) {
printf("not enough arguments:\n");
goto usage;
}
addr_t address = argv[3].u;
off_t offset = argv[4].u; // XXX use long
size_t len = argv[5].u;
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
time_t t = current_time();
ssize_t err = bio_write(dev, (void *)address, offset, len);
t = current_time() - t;
dprintf(INFO, "bio_write returns %d, took %u msecs (%d bytes/sec)\n", (int)err, (uint)t, (uint32_t)((uint64_t)err * 1000 / t));
bio_close(dev);
rc = err;
} else if (!strcmp(argv[1].str, "erase")) {
if (argc < 5) {
printf("not enough arguments:\n");
goto usage;
}
off_t offset = argv[3].u; // XXX use long
size_t len = argv[4].u;
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
time_t t = current_time();
ssize_t err = bio_erase(dev, offset, len);
t = current_time() - t;
dprintf(INFO, "bio_erase returns %d, took %u msecs (%d bytes/sec)\n", (int)err, (uint)t, (uint32_t)((uint64_t)err * 1000 / t));
bio_close(dev);
rc = err;
} else if (!strcmp(argv[1].str, "ioctl")) {
if (argc < 4) {
printf("not enough arguments:\n");
goto usage;
}
int request = argv[3].u;
int arg = (argc == 5) ? argv[4].u : 0;
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
int err = bio_ioctl(dev, request, (void *)arg);
dprintf(INFO, "bio_ioctl returns %d\n", err);
bio_close(dev);
rc = err;
} else if (!strcmp(argv[1].str, "remove")) {
if (argc < 3) {
printf("not enough arguments:\n");
goto usage;
}
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
bio_unregister_device(dev);
bio_close(dev);
#if WITH_LIB_PARTITION
} else if (!strcmp(argv[1].str, "partscan")) {
if (argc < 3) {
printf("not enough arguments:\n");
goto usage;
}
off_t offset = 0;
if (argc > 3)
offset = argv[3].u;
rc = partition_publish(argv[2].str, offset);
dprintf(INFO, "partition_publish returns %d\n", rc);
#endif
} else {
printf("unrecognized subcommand\n");
goto usage;
}
return rc;
}
static int cmd_bio(int argc, const cmd_args *argv)
{
int rc = 0;
if (argc < 2) {
notenoughargs:
printf("not enough arguments:\n");
usage:
printf("%s list\n", argv[0].str);
printf("%s read <device> <address> <offset> <len>\n", argv[0].str);
printf("%s write <device> <address> <offset> <len>\n", argv[0].str);
printf("%s dump <device> <offset> <len>\n", argv[0].str);
printf("%s erase <device> <offset> <len>\n", argv[0].str);
printf("%s ioctl <device> <request> <arg>\n", argv[0].str);
printf("%s remove <device>\n", argv[0].str);
printf("%s test <device>\n", argv[0].str);
#if WITH_LIB_PARTITION
printf("%s partscan <device> [offset]\n", argv[0].str);
#endif
#if WITH_LIB_CKSUM
printf("%s crc32 <device> <offset> <len> [repeat]\n", argv[0].str);
#endif
return -1;
}
if (!strcmp(argv[1].str, "list")) {
bio_dump_devices();
} else if (!strcmp(argv[1].str, "read")) {
if (argc < 6) goto notenoughargs;
addr_t address = argv[3].u;
off_t offset = argv[4].u; // XXX use long
size_t len = argv[5].u;
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
lk_time_t t = current_time();
ssize_t err = bio_read(dev, (void *)address, offset, len);
t = current_time() - t;
dprintf(INFO, "bio_read returns %d, took %u msecs (%d bytes/sec)\n", (int)err, (uint)t, (uint32_t)((uint64_t)err * 1000 / t));
bio_close(dev);
rc = err;
} else if (!strcmp(argv[1].str, "write")) {
if (argc < 6) goto notenoughargs;
addr_t address = argv[3].u;
off_t offset = argv[4].u; // XXX use long
size_t len = argv[5].u;
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
lk_time_t t = current_time();
ssize_t err = bio_write(dev, (void *)address, offset, len);
t = current_time() - t;
dprintf(INFO, "bio_write returns %d, took %u msecs (%d bytes/sec)\n", (int)err, (uint)t, (uint32_t)((uint64_t)err * 1000 / t));
bio_close(dev);
rc = err;
} else if (!strcmp(argv[1].str, "dump")) {
if (argc < 5) {
printf("not enough arguments:\n");
goto usage;
}
off_t offset = argv[3].u; // XXX use long
size_t len = argv[4].u;
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
uint8_t *buf = memalign(CACHE_LINE, 256);
ssize_t err = 0;
while (len > 0) {
size_t amt = MIN(256, len);
ssize_t err = bio_read(dev, buf, offset, amt);
if (err < 0) {
dprintf(ALWAYS, "read error %s %zu@%zu (err %d)\n",
argv[2].str, amt, (size_t)offset, (int)err);
break;
}
DEBUG_ASSERT((size_t)err <= amt);
hexdump8_ex(buf, err, offset);
if ((size_t)err != amt) {
dprintf(ALWAYS, "short read from %s @%zu (wanted %zu, got %zu)\n",
argv[2].str, (size_t)offset, amt, (size_t)err);
break;
}
offset += amt;
len -= amt;
}
bio_close(dev);
rc = err;
} else if (!strcmp(argv[1].str, "erase")) {
if (argc < 5) goto notenoughargs;
off_t offset = argv[3].u; // XXX use long
size_t len = argv[4].u;
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
lk_time_t t = current_time();
ssize_t err = bio_erase(dev, offset, len);
t = current_time() - t;
dprintf(INFO, "bio_erase returns %d, took %u msecs (%d bytes/sec)\n", (int)err, (uint)t, (uint32_t)((uint64_t)err * 1000 / t));
bio_close(dev);
rc = err;
} else if (!strcmp(argv[1].str, "ioctl")) {
if (argc < 4) goto notenoughargs;
int request = argv[3].u;
int arg = (argc == 5) ? argv[4].u : 0;
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
int err = bio_ioctl(dev, request, (void *)arg);
dprintf(INFO, "bio_ioctl returns %d\n", err);
bio_close(dev);
rc = err;
} else if (!strcmp(argv[1].str, "remove")) {
if (argc < 3) goto notenoughargs;
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
bio_unregister_device(dev);
bio_close(dev);
} else if (!strcmp(argv[1].str, "test")) {
if (argc < 3) goto notenoughargs;
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
int err = bio_test_device(dev);
bio_close(dev);
rc = err;
#if WITH_LIB_PARTITION
} else if (!strcmp(argv[1].str, "partscan")) {
if (argc < 3) goto notenoughargs;
off_t offset = 0;
if (argc > 3)
offset = argv[3].u;
rc = partition_publish(argv[2].str, offset);
dprintf(INFO, "partition_publish returns %d\n", rc);
#endif
#if WITH_LIB_CKSUM
} else if (!strcmp(argv[1].str, "crc32")) {
if (argc < 5) goto notenoughargs;
off_t offset = argv[3].u; // XXX use long
size_t len = argv[4].u;
bdev_t *dev = bio_open(argv[2].str);
if (!dev) {
printf("error opening block device\n");
return -1;
}
void *buf = malloc(dev->block_size);
bool repeat = false;
if (argc >= 6 && !strcmp(argv[5].str, "repeat")) {
repeat = true;
}
do {
ulong crc = 0;
off_t pos = offset;
while (pos < offset + len) {
ssize_t err = bio_read(dev, buf, pos, MIN(len - (pos - offset), dev->block_size));
if (err <= 0) {
printf("error reading at offset 0x%llx\n", offset + pos);
break;
}
crc = crc32(crc, buf, err);
pos += err;
}
printf("crc 0x%08lx\n", crc);
} while (repeat);
bio_close(dev);
free(buf);
#endif
} else {
printf("unrecognized subcommand\n");
goto usage;
}
return rc;
}