static int
rtems_rfs_shell_data (rtems_rfs_file_system* fs, int argc, char *argv[])
{
size_t blocks;
size_t inodes;
int bpcent;
int ipcent;
printf ("RFS Filesystem Data\n");
printf (" flags: %08" PRIx32 "\n", fs->flags);
#if 0
printf (" device: %08lx\n", rtems_rfs_fs_device (fs));
#endif
printf (" blocks: %zu\n", rtems_rfs_fs_blocks (fs));
printf (" block size: %zu\n", rtems_rfs_fs_block_size (fs));
printf (" size: %" PRIu64 "\n", rtems_rfs_fs_size (fs));
printf (" media block size: %" PRIu32 "\n", rtems_rfs_fs_media_block_size (fs));
printf (" media size: %" PRIu64 "\n", rtems_rfs_fs_media_size (fs));
printf (" inodes: %" PRIu32 "\n", rtems_rfs_fs_inodes (fs));
printf (" bad blocks: %" PRIu32 "\n", fs->bad_blocks);
printf (" max. name length: %" PRIu32 "\n", rtems_rfs_fs_max_name (fs));
printf (" groups: %d\n", fs->group_count);
printf (" group blocks: %zd\n", fs->group_blocks);
printf (" group inodes: %zd\n", fs->group_inodes);
printf (" inodes per block: %zd\n", fs->inodes_per_block);
printf (" blocks per block: %zd\n", fs->blocks_per_block);
printf (" singly blocks: %zd\n", fs->block_map_singly_blocks);
printf (" doublly blocks: %zd\n", fs->block_map_doubly_blocks);
printf (" max. held buffers: %" PRId32 "\n", fs->max_held_buffers);
rtems_rfs_shell_lock_rfs (fs);
rtems_rfs_group_usage (fs, &blocks, &inodes);
rtems_rfs_shell_unlock_rfs (fs);
bpcent = (blocks * 1000) / rtems_rfs_fs_blocks (fs);
ipcent = (inodes * 1000) / rtems_rfs_fs_inodes (fs);
printf (" blocks used: %zd (%d.%d%%)\n",
blocks, bpcent / 10, bpcent % 10);
printf (" inodes used: %zd (%d.%d%%)\n",
inodes, ipcent / 10, ipcent % 10);
return 0;
}
static int
rtems_rfs_fs_read_superblock (rtems_rfs_file_system* fs)
{
rtems_rfs_buffer_handle handle;
uint8_t* sb;
int group;
int rc;
rc = rtems_rfs_buffer_handle_open (fs, &handle);
if (rc > 0)
{
if (rtems_rfs_trace (RTEMS_RFS_TRACE_OPEN))
printf ("rtems-rfs: read-superblock: handle open failed: %d: %s\n",
rc, strerror (rc));
return rc;
}
rc = rtems_rfs_buffer_handle_request (fs, &handle, 0, true);
if (rc > 0)
{
if (rtems_rfs_trace (RTEMS_RFS_TRACE_OPEN))
printf ("rtems-rfs: read-superblock: request failed%d: %s\n",
rc, strerror (rc));
return rc;
}
sb = rtems_rfs_buffer_data (&handle);
#define read_sb(_o) rtems_rfs_read_u32 (sb + (_o))
if (read_sb (RTEMS_RFS_SB_OFFSET_MAGIC) != RTEMS_RFS_SB_MAGIC)
{
if (rtems_rfs_trace (RTEMS_RFS_TRACE_OPEN))
printf ("rtems-rfs: read-superblock: invalid superblock, bad magic\n");
rtems_rfs_buffer_handle_close (fs, &handle);
return EIO;
}
fs->blocks = read_sb (RTEMS_RFS_SB_OFFSET_BLOCKS);
fs->block_size = read_sb (RTEMS_RFS_SB_OFFSET_BLOCK_SIZE);
if (rtems_rfs_fs_size(fs) > rtems_rfs_fs_media_size (fs))
{
if (rtems_rfs_trace (RTEMS_RFS_TRACE_OPEN))
printf ("rtems-rfs: read-superblock: invalid superblock block/size count\n");
rtems_rfs_buffer_handle_close (fs, &handle);
return EIO;
}
if ((read_sb (RTEMS_RFS_SB_OFFSET_VERSION) & RTEMS_RFS_VERSION_MASK) !=
(RTEMS_RFS_VERSION * RTEMS_RFS_VERSION_MASK))
{
if (rtems_rfs_trace (RTEMS_RFS_TRACE_OPEN))
printf ("rtems-rfs: read-superblock: incompatible version: %08" PRIx32 " (%08" PRIx32 ")\n",
read_sb (RTEMS_RFS_SB_OFFSET_VERSION), RTEMS_RFS_VERSION_MASK);
rtems_rfs_buffer_handle_close (fs, &handle);
return EIO;
}
if (read_sb (RTEMS_RFS_SB_OFFSET_INODE_SIZE) != RTEMS_RFS_INODE_SIZE)
{
if (rtems_rfs_trace (RTEMS_RFS_TRACE_OPEN))
printf ("rtems-rfs: read-superblock: inode size mismatch: fs:%" PRId32 " target:%" PRId32 "\n",
read_sb (RTEMS_RFS_SB_OFFSET_VERSION), RTEMS_RFS_VERSION_MASK);
rtems_rfs_buffer_handle_close (fs, &handle);
return EIO;
}
fs->bad_blocks = read_sb (RTEMS_RFS_SB_OFFSET_BAD_BLOCKS);
fs->max_name_length = read_sb (RTEMS_RFS_SB_OFFSET_MAX_NAME_LENGTH);
fs->group_count = read_sb (RTEMS_RFS_SB_OFFSET_GROUPS);
fs->group_blocks = read_sb (RTEMS_RFS_SB_OFFSET_GROUP_BLOCKS);
fs->group_inodes = read_sb (RTEMS_RFS_SB_OFFSET_GROUP_INODES);
fs->blocks_per_block =
rtems_rfs_fs_block_size (fs) / sizeof (rtems_rfs_inode_block);
fs->block_map_singly_blocks =
fs->blocks_per_block * RTEMS_RFS_INODE_BLOCKS;
fs->block_map_doubly_blocks =
fs->blocks_per_block * fs->blocks_per_block * RTEMS_RFS_INODE_BLOCKS;
fs->inodes = fs->group_count * fs->group_inodes;
fs->inodes_per_block = fs->block_size / RTEMS_RFS_INODE_SIZE;
if (fs->group_blocks >
rtems_rfs_bitmap_numof_bits (rtems_rfs_fs_block_size (fs)))
{
rtems_rfs_buffer_handle_close (fs, &handle);
if (rtems_rfs_trace (RTEMS_RFS_TRACE_OPEN))
printf ("rtems-rfs: read-superblock: groups blocks larger than block bits\n");
return EIO;
}
rtems_rfs_buffer_handle_close (fs, &handle);
/*
* Change the block size to the value in the superblock.
*/
rc = rtems_rfs_buffer_setblksize (fs, rtems_rfs_fs_block_size (fs));
if (rc > 0)
{
rtems_rfs_buffer_handle_close (fs, &handle);
if (rtems_rfs_trace (RTEMS_RFS_TRACE_OPEN))
printf ("rtems-rfs: read-superblock: invalid superblock block size%d: %s\n",
rc, strerror (rc));
return rc;
}
fs->groups = calloc (fs->group_count, sizeof (rtems_rfs_group));
if (!fs->groups)
{
rtems_rfs_buffer_handle_close (fs, &handle);
if (rtems_rfs_trace (RTEMS_RFS_TRACE_OPEN))
printf ("rtems-rfs: read-superblock: no memory for group table\n");
return ENOMEM;
}
/*
* Perform each phase of group initialisation at the same time. This way we
* know how far the initialisation has gone if an error occurs and we need to
* close everything.
*/
for (group = 0; group < fs->group_count; group++)
{
rc = rtems_rfs_group_open (fs,
rtems_rfs_fs_block (fs, group, 0),
fs->group_blocks,
fs->group_inodes,
&fs->groups[group]);
if (rc > 0)
{
int g;
for (g = 0; g < group; g++)
rtems_rfs_group_close (fs, &fs->groups[g]);
rtems_rfs_buffer_handle_close (fs, &handle);
if (rtems_rfs_trace (RTEMS_RFS_TRACE_OPEN))
printf ("rtems-rfs: read-superblock: no memory for group table%d: %s\n",
rc, strerror (rc));
return rc;
}
}
return 0;
}
int
rtems_rfs_format (const char* name, const rtems_rfs_format_config* config)
{
rtems_rfs_file_system fs;
int group;
int rc;
if (config->verbose)
printf ("rtems-rfs: format: %s\n", name);
memset (&fs, 0, sizeof (rtems_rfs_file_system));
rtems_chain_initialize_empty (&fs.buffers);
rtems_chain_initialize_empty (&fs.release);
rtems_chain_initialize_empty (&fs.release_modified);
rtems_chain_initialize_empty (&fs.file_shares);
fs.max_held_buffers = RTEMS_RFS_FS_MAX_HELD_BUFFERS;
fs.release_count = 0;
fs.release_modified_count = 0;
fs.flags = RTEMS_RFS_FS_NO_LOCAL_CACHE;
/*
* Open the buffer interface.
*/
rc = rtems_rfs_buffer_open (name, &fs);
if (rc > 0)
{
printf ("rtems-rfs: format: buffer open failed: %d: %s\n",
rc, strerror (rc));
return -1;
}
/*
* Check the media.
*/
if (rtems_rfs_fs_media_block_size (&fs) == 0)
{
printf ("rtems-rfs: media block is invalid: %" PRIu32 "\n",
rtems_rfs_fs_media_block_size (&fs));
return -1;
}
/*
* Check the configuration data.
*/
if (!rtems_rfs_check_config (&fs, config))
return -1;
if (config->verbose)
{
printf ("rtems-rfs: format: media size = %" PRIu64 "\n",
rtems_rfs_fs_media_size (&fs));
printf ("rtems-rfs: format: media blocks = %" PRIu32 "\n",
rtems_rfs_fs_media_blocks (&fs));
printf ("rtems-rfs: format: media block size = %" PRIu32 "\n",
rtems_rfs_fs_media_block_size (&fs));
printf ("rtems-rfs: format: size = %" PRIu64 "\n",
rtems_rfs_fs_size (&fs));
printf ("rtems-rfs: format: blocks = %zu\n",
rtems_rfs_fs_blocks (&fs));
printf ("rtems-rfs: format: block size = %zu\n",
rtems_rfs_fs_block_size (&fs));
printf ("rtems-rfs: format: bits per block = %u\n",
rtems_rfs_bits_per_block (&fs));
printf ("rtems-rfs: format: inode size = %zu\n", RTEMS_RFS_INODE_SIZE);
printf ("rtems-rfs: format: inodes = %zu (%d.%d%%)\n",
fs.group_inodes * fs.group_count,
rtems_rfs_inode_overhead (&fs) / 10,
rtems_rfs_inode_overhead (&fs) % 10);
printf ("rtems-rfs: format: groups = %u\n", fs.group_count);
printf ("rtems-rfs: format: group blocks = %zu\n", fs.group_blocks);
printf ("rtems-rfs: format: group inodes = %zu\n", fs.group_inodes);
}
rc = rtems_rfs_buffer_setblksize (&fs, rtems_rfs_fs_block_size (&fs));
if (rc > 0)
{
printf ("rtems-rfs: format: setting block size failed: %d: %s\n",
rc, strerror (rc));
return -1;
}
if (!rtems_rfs_write_superblock (&fs))
{
printf ("rtems-rfs: format: superblock write failed\n");
return -1;
}
for (group = 0; group < fs.group_count; group++)
if (!rtems_rfs_write_group (&fs, group,
config->initialise_inodes, config->verbose))
return -1;
if (config->verbose)
printf ("\n");
rc = rtems_rfs_buffer_close (&fs);
if (rc > 0)
{
printf ("rtems-rfs: format: buffer close failed: %d: %s\n",
rc, strerror (rc));
return -1;
}
rc = rtems_rfs_write_root_dir (name);
if (rc > 0)
{
printf ("rtems-rfs: format: writing root dir failed: %d: %s\n",
rc, strerror (rc));
return -1;
}
return 0;
}