int main(int argc, char *argv[]) {
char * bytes_count_str = NULL;
char * devname;
reiserfs_filsys_t fs;
struct reiserfs_super_block * rs;
int c;
int error;
struct reiserfs_super_block *sb_old;
unsigned long block_count_new;
print_banner ("resize_reiserfs");
while ((c = getopt(argc, argv, "fvcqs:")) != EOF) {
switch (c) {
case 's' :
if (!optarg)
die("%s: Missing argument to -s option", argv[0]);
bytes_count_str = optarg;
break;
case 'f':
opt_force = 1;
break;
case 'v':
opt_verbose++;
break;
case 'n':
/* no nowrite option at this moment */
/* opt_nowrite = 1; */
break;
case 'c':
opt_safe = 1;
break;
case 'q':
opt_verbose = 0;
break;
default:
print_usage_and_exit ();
}
}
if (optind == argc )
print_usage_and_exit();
devname = argv[optind];
fs = reiserfs_open(devname, O_RDONLY, &error, 0);
if (!fs)
die ("%s: can not open '%s': %s", argv[0], devname, strerror(error));
if (no_reiserfs_found (fs)) {
die ("resize_reiserfs: no reiserfs found on the device");
}
if (!spread_bitmaps (fs)) {
die ("resize_reiserfs: cannot resize reiserfs in old (not spread bitmap) format.\n");
}
rs = fs->s_rs;
if(bytes_count_str) { /* new fs size is specified by user */
block_count_new = calc_new_fs_size(rs_block_count(rs), fs->s_blocksize, bytes_count_str);
} else { /* use whole device */
block_count_new = count_blocks(devname, fs->s_blocksize, -1);
}
if (is_mounted (devname)) {
reiserfs_close(fs);
return resize_fs_online(devname, block_count_new);
}
if (rs_state(rs) != REISERFS_VALID_FS)
die ("%s: the file system isn't in valid state\n", argv[0]);
if(!valid_offset(fs->s_dev, (loff_t) block_count_new * fs->s_blocksize - 1))
die ("%s: %s too small", argv[0], devname);
sb_old = 0; /* Needed to keep idiot compiler from issuing false warning */
/* save SB for reporting */
if(opt_verbose) {
sb_old = getmem(SB_SIZE);
memcpy(sb_old, SB_DISK_SUPER_BLOCK(fs), SB_SIZE);
}
if (block_count_new == SB_BLOCK_COUNT(fs))
die ("%s: Calculated fs size is the same as the previous one.", argv[0]);
if (block_count_new > SB_BLOCK_COUNT(fs))
expand_fs(fs, block_count_new);
else
shrink_fs(fs, block_count_new);
if(opt_verbose) {
sb_report(rs, sb_old);
freemem(sb_old);
}
set_state (rs, REISERFS_VALID_FS);
bwrite_cond(SB_BUFFER_WITH_SB(fs));
if (opt_verbose) {
printf("\nSyncing..");
fflush(stdout);
}
reiserfs_close (fs);
if (opt_verbose)
printf("done\n");
return 0;
}
/******************************************************************************
* Reiserfs boot command intepreter. Derived from diskboot
*/
int do_reiserload (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
char *filename = NULL;
int dev, part;
ulong addr = 0, filelen;
disk_partition_t info;
block_dev_desc_t *dev_desc = NULL;
unsigned long count;
char *addr_str;
switch (argc) {
case 3:
addr_str = getenv("loadaddr");
if (addr_str != NULL) {
addr = simple_strtoul (addr_str, NULL, 16);
} else {
addr = CONFIG_SYS_LOAD_ADDR;
}
filename = getenv ("bootfile");
count = 0;
break;
case 4:
addr = simple_strtoul (argv[3], NULL, 16);
filename = getenv ("bootfile");
count = 0;
break;
case 5:
addr = simple_strtoul (argv[3], NULL, 16);
filename = argv[4];
count = 0;
break;
case 6:
addr = simple_strtoul (argv[3], NULL, 16);
filename = argv[4];
count = simple_strtoul (argv[5], NULL, 16);
break;
default:
return CMD_RET_USAGE;
}
if (!filename) {
puts ("\n** No boot file defined **\n");
return 1;
}
part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
dev = dev_desc->dev;
printf("Loading file \"%s\" from %s device %d%c%c\n",
filename, argv[1], dev,
part ? ':' : ' ', part ? part + '0' : ' ');
reiserfs_set_blk_dev(dev_desc, &info);
if (!reiserfs_mount(info.size)) {
printf ("** Bad Reiserfs partition or disk - %s %d:%d **\n", argv[1], dev, part);
return 1;
}
filelen = reiserfs_open(filename);
if (filelen < 0) {
printf("** File not found %s **\n", filename);
return 1;
}
if ((count < filelen) && (count != 0)) {
filelen = count;
}
if (reiserfs_read((char *)addr, filelen) != filelen) {
printf("\n** Unable to read \"%s\" from %s %d:%d **\n", filename, argv[1], dev, part);
return 1;
}
/* Loading ok, update default load address */
load_addr = addr;
printf ("\n%ld bytes read\n", filelen);
setenv_hex("filesize", filelen);
return filelen;
}
/******************************************************************************
* Reiserfs boot command intepreter. Derived from diskboot
*/
int do_reiserload (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *filename = NULL;
char *ep;
int dev, part = 0;
ulong addr = 0, part_length, filelen;
disk_partition_t info;
block_dev_desc_t *dev_desc = NULL;
char buf [12];
unsigned long count;
char *addr_str;
switch (argc) {
case 3:
addr_str = getenv("loadaddr");
if (addr_str != NULL) {
addr = simple_strtoul (addr_str, NULL, 16);
} else {
addr = CFG_LOAD_ADDR;
}
filename = getenv ("bootfile");
count = 0;
break;
case 4:
addr = simple_strtoul (argv[3], NULL, 16);
filename = getenv ("bootfile");
count = 0;
break;
case 5:
addr = simple_strtoul (argv[3], NULL, 16);
filename = argv[4];
count = 0;
break;
case 6:
addr = simple_strtoul (argv[3], NULL, 16);
filename = argv[4];
count = simple_strtoul (argv[5], NULL, 16);
break;
default:
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
if (!filename) {
puts ("\n** No boot file defined **\n");
return 1;
}
dev = (int)simple_strtoul (argv[2], &ep, 16);
dev_desc=get_dev(argv[1],dev);
if (dev_desc==NULL) {
printf ("\n** Block device %s %d not supported\n", argv[1], dev);
return 1;
}
if (*ep) {
if (*ep != ':') {
puts ("\n** Invalid boot device, use `dev[:part]' **\n");
return 1;
}
part = (int)simple_strtoul(++ep, NULL, 16);
}
PRINTF("Using device %s%d, partition %d\n", argv[1], dev, part);
if (part != 0) {
if (get_partition_info (&dev_desc[dev], part, &info)) {
printf ("** Bad partition %d **\n", part);
return 1;
}
if (strncmp(info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) {
printf ("\n** Invalid partition type \"%.32s\""
" (expect \"" BOOT_PART_TYPE "\")\n",
info.type);
return 1;
}
PRINTF ("\nLoading from block device %s device %d, partition %d: "
"Name: %.32s Type: %.32s File:%s\n",
argv[1], dev, part, info.name, info.type, filename);
} else {
PRINTF ("\nLoading from block device %s device %d, File:%s\n",
argv[1], dev, filename);
}
if ((part_length = reiserfs_set_blk_dev(dev_desc, part)) == 0) {
printf ("** Bad partition - %s %d:%d **\n", argv[1], dev, part);
return 1;
}
if (!reiserfs_mount(part_length)) {
printf ("** Bad Reisefs partition or disk - %s %d:%d **\n", argv[1], dev, part);
return 1;
}
filelen = reiserfs_open(filename);
if (filelen < 0) {
printf("** File not found %s\n", filename);
return 1;
}
if ((count < filelen) && (count != 0)) {
filelen = count;
}
if (reiserfs_read((char *)addr, filelen) != filelen) {
printf("\n** Unable to read \"%s\" from %s %d:%d **\n", filename, argv[1], dev, part);
return 1;
}
/* Loading ok, update default load address */
load_addr = addr;
printf ("\n%ld bytes read\n", filelen);
sprintf(buf, "%lX", filelen);
setenv("filesize", buf);
return filelen;
}
