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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* write_inode.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#include "config.h"
#include "sqfs/inode.h"
static int write_block_sizes(meta_writer_t *ir, sqfs_inode_generic_t *n,
size_t file_num_blocks)
{
uint32_t sizes[file_num_blocks];
size_t i;
for (i = 0; i < file_num_blocks; ++i)
sizes[i] = htole32(n->block_sizes[i]);
return meta_writer_append(ir, sizes,
sizeof(uint32_t) * file_num_blocks);
}
int meta_writer_write_inode(meta_writer_t *ir, sqfs_inode_generic_t *n,
size_t file_num_blocks)
{
sqfs_inode_t base;
base.type = htole16(n->base.type);
base.mode = htole16(n->base.mode);
base.uid_idx = htole16(n->base.uid_idx);
base.gid_idx = htole16(n->base.gid_idx);
base.mod_time = htole32(n->base.mod_time);
base.inode_number = htole32(n->base.inode_number);
if (meta_writer_append(ir, &base, sizeof(base)))
return -1;
switch (n->base.type) {
case SQFS_INODE_DIR: {
sqfs_inode_dir_t dir = {
.start_block = htole32(n->data.dir.start_block),
.nlink = htole32(n->data.dir.nlink),
.size = htole16(n->data.dir.size),
.offset = htole16(n->data.dir.offset),
.parent_inode = htole32(n->data.dir.parent_inode),
};
return meta_writer_append(ir, &dir, sizeof(dir));
}
case SQFS_INODE_FILE: {
sqfs_inode_file_t file = {
.blocks_start = htole32(n->data.file.blocks_start),
.fragment_index = htole32(n->data.file.fragment_index),
.fragment_offset =
htole32(n->data.file.fragment_offset),
.file_size = htole32(n->data.file.file_size),
};
if (meta_writer_append(ir, &file, sizeof(file)))
return -1;
return write_block_sizes(ir, n, file_num_blocks);
}
case SQFS_INODE_SLINK: {
sqfs_inode_slink_t slink = {
.nlink = htole32(n->data.slink.nlink),
.target_size = htole32(n->data.slink.target_size),
};
if (meta_writer_append(ir, &slink, sizeof(slink)))
return -1;
return meta_writer_append(ir, n->slink_target,
n->data.slink.target_size);
}
case SQFS_INODE_BDEV:
case SQFS_INODE_CDEV: {
sqfs_inode_dev_t dev = {
.nlink = htole32(n->data.dev.nlink),
.devno = htole32(n->data.dev.devno),
};
return meta_writer_append(ir, &dev, sizeof(dev));
}
case SQFS_INODE_FIFO:
case SQFS_INODE_SOCKET: {
sqfs_inode_ipc_t ipc = {
.nlink = htole32(n->data.ipc.nlink),
};
return meta_writer_append(ir, &ipc, sizeof(ipc));
}
case SQFS_INODE_EXT_DIR: {
sqfs_inode_dir_ext_t dir = {
.nlink = htole32(n->data.dir_ext.nlink),
.size = htole32(n->data.dir_ext.size),
.start_block = htole32(n->data.dir_ext.start_block),
.parent_inode = htole32(n->data.dir_ext.parent_inode),
.inodex_count = htole16(n->data.dir_ext.inodex_count),
.offset = htole16(n->data.dir_ext.offset),
.xattr_idx = htole32(n->data.dir_ext.xattr_idx),
};
return meta_writer_append(ir, &dir, sizeof(dir));
}
case SQFS_INODE_EXT_FILE: {
sqfs_inode_file_ext_t file = {
.blocks_start = htole64(n->data.file_ext.blocks_start),
.file_size = htole64(n->data.file_ext.file_size),
.sparse = htole64(n->data.file_ext.sparse),
.nlink = htole32(n->data.file_ext.nlink),
.fragment_idx = htole32(n->data.file_ext.fragment_idx),
.fragment_offset =
htole32(n->data.file_ext.fragment_offset),
.xattr_idx = htole32(n->data.file_ext.xattr_idx),
};
if (meta_writer_append(ir, &file, sizeof(file)))
return -1;
return write_block_sizes(ir, n, file_num_blocks);
}
case SQFS_INODE_EXT_SLINK: {
sqfs_inode_slink_t slink = {
.nlink = htole32(n->data.slink_ext.nlink),
.target_size = htole32(n->data.slink_ext.target_size),
};
uint32_t xattr = htole32(n->data.slink_ext.xattr_idx);
if (meta_writer_append(ir, &slink, sizeof(slink)))
return -1;
if (meta_writer_append(ir, n->slink_target,
n->data.slink_ext.target_size)) {
return -1;
}
return meta_writer_append(ir, &xattr, sizeof(xattr));
}
case SQFS_INODE_EXT_BDEV:
case SQFS_INODE_EXT_CDEV: {
sqfs_inode_dev_ext_t dev = {
.nlink = htole32(n->data.dev_ext.nlink),
.devno = htole32(n->data.dev_ext.devno),
.xattr_idx = htole32(n->data.dev_ext.xattr_idx),
};
return meta_writer_append(ir, &dev, sizeof(dev));
}
case SQFS_INODE_EXT_FIFO:
case SQFS_INODE_EXT_SOCKET: {
sqfs_inode_ipc_ext_t ipc = {
.nlink = htole32(n->data.ipc_ext.nlink),
.xattr_idx = htole32(n->data.ipc_ext.xattr_idx),
};
return meta_writer_append(ir, &ipc, sizeof(ipc));
}
}
return -1;
}
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