++#endif
++
++
++static struct inode *squashfs_iget(struct super_block *s, squashfs_inode inode)
++{
++ struct inode *i = new_inode(s);
++ squashfs_sb_info *msBlk = &s->u.squashfs_sb;
++ squashfs_super_block *sBlk = &msBlk->sBlk;
++ unsigned int block = SQUASHFS_INODE_BLK(inode) + sBlk->inode_table_start;
++ unsigned int offset = SQUASHFS_INODE_OFFSET(inode);
++ unsigned int next_block, next_offset;
++ squashfs_base_inode_header inodeb;
++
++ TRACE("Entered squashfs_iget\n");
++
++ if(msBlk->swap) {
++ squashfs_base_inode_header sinodeb;
++
++ if(!squashfs_get_cached_block(s, (char *) &sinodeb, block, offset,
++ sizeof(sinodeb), &next_block, &next_offset))
++ goto failed_read;
++ SQUASHFS_SWAP_BASE_INODE_HEADER(&inodeb, &sinodeb, sizeof(sinodeb));
++ } else
++ if(!squashfs_get_cached_block(s, (char *) &inodeb, block, offset,
++ sizeof(inodeb), &next_block, &next_offset))
++ goto failed_read;
++
++ i->i_nlink = 1;
++
++ i->i_mtime = sBlk->mkfs_time;
++ i->i_atime = sBlk->mkfs_time;
++ i->i_ctime = sBlk->mkfs_time;
++
++ if(inodeb.inode_type != SQUASHFS_IPC_TYPE)
++ i->i_uid = msBlk->uid[((inodeb.inode_type - 1) / SQUASHFS_TYPES) * 16 + inodeb.uid];
++ i->i_ino = SQUASHFS_MK_VFS_INODE(block - sBlk->inode_table_start, offset);
++
++ i->i_mode = inodeb.mode;
++
++ switch(inodeb.inode_type) {
++ case SQUASHFS_FILE_TYPE: {
++ squashfs_reg_inode_header inodep;
++
++ if(msBlk->swap) {
++ squashfs_reg_inode_header sinodep;
++
++ if(!squashfs_get_cached_block(s, (char *) &sinodep, block, offset, sizeof(sinodep),
++ &next_block, &next_offset))
++ goto failed_read;
++ SQUASHFS_SWAP_REG_INODE_HEADER(&inodep, &sinodep);
++ } else
++ if(!squashfs_get_cached_block(s, (char *) &inodep, block, offset, sizeof(inodep),
++ &next_block, &next_offset))
++ goto failed_read;
++
++ i->u.squashfs_i.fragment_start_block = SQUASHFS_INVALID_BLK;
++ if(inodep.fragment != SQUASHFS_INVALID_BLK && !get_fragment_location(s, inodep.fragment,
++ &i->u.squashfs_i.fragment_start_block, &i->u.squashfs_i.fragment_size))
++ goto failed_read;
++
++ i->u.squashfs_i.fragment_offset = inodep.offset;
++ i->i_size = inodep.file_size;
++ i->i_fop = &generic_ro_fops;
++ if(sBlk->block_size > 4096)
++ i->i_data.a_ops = &squashfs_aops;
++ else
++ i->i_data.a_ops = &squashfs_aops_4K;
++ i->i_mode |= S_IFREG;
++ i->i_mtime = inodep.mtime;
++ i->i_atime = inodep.mtime;
++ i->i_ctime = inodep.mtime;
++ i->i_blocks = ((i->i_size - 1) >> 9) + 1;
++ i->i_blksize = PAGE_CACHE_SIZE;
++ i->u.squashfs_i.start_block = inodep.start_block;
++ i->u.squashfs_i.block_list_start = next_block;
++ i->u.squashfs_i.offset = next_offset;
++ TRACE("File inode %x:%x, start_block %x, block_list_start %x, offset %x fragment_index %x fragment_offset %x\n",
++ SQUASHFS_INODE_BLK(inode), offset, inodep.start_block, next_block, next_offset, inodep.fragment, inodep.offset);
++ break;
++ }
++ case SQUASHFS_DIR_TYPE: {
++ squashfs_dir_inode_header inodep;
++
++ if(msBlk->swap) {
++ squashfs_dir_inode_header sinodep;
++
++ if(!squashfs_get_cached_block(s, (char *) &sinodep, block, offset, sizeof(sinodep),
++ &next_block, &next_offset))
++ goto failed_read;
++ SQUASHFS_SWAP_DIR_INODE_HEADER(&inodep, &sinodep);
++ } else
++ if(!squashfs_get_cached_block(s, (char *) &inodep, block, offset, sizeof(inodep),
++ &next_block, &next_offset))
++ goto failed_read;
++
++ i->i_size = inodep.file_size;
++ i->i_op = &squashfs_dir_inode_ops;
++ i->i_fop = &squashfs_dir_ops;
++ i->i_mode |= S_IFDIR;
++ i->i_mtime = inodep.mtime;
++ i->i_atime = inodep.mtime;
++ i->i_ctime = inodep.mtime;
++ i->u.squashfs_i.start_block = inodep.start_block;
++ i->u.squashfs_i.offset = inodep.offset;
++ TRACE("Directory inode %x:%x, start_block %x, offset %x\n", SQUASHFS_INODE_BLK(inode), offset,
++ inodep.start_block, inodep.offset);
++ break;
++ }
++ case SQUASHFS_SYMLINK_TYPE: {
++ squashfs_symlink_inode_header inodep;
++
++ if(msBlk->swap) {
++ squashfs_symlink_inode_header sinodep;
++
++ if(!squashfs_get_cached_block(s, (char *) &sinodep, block, offset, sizeof(sinodep),
++ &next_block, &next_offset))
++ goto failed_read;
++ SQUASHFS_SWAP_SYMLINK_INODE_HEADER(&inodep, &sinodep);
++ } else
++ if(!squashfs_get_cached_block(s, (char *) &inodep, block, offset, sizeof(inodep),
++ &next_block, &next_offset))
++ goto failed_read;
++
++ i->i_size = inodep.symlink_size;
++ i->i_op = &page_symlink_inode_operations;
++ i->i_data.a_ops = &squashfs_symlink_aops;
++ i->i_mode |= S_IFLNK;
++ i->u.squashfs_i.start_block = next_block;
++ i->u.squashfs_i.offset = next_offset;
++ TRACE("Symbolic link inode %x:%x, start_block %x, offset %x\n",
++ SQUASHFS_INODE_BLK(inode), offset, next_block, next_offset);
++ break;
++ }
++ case SQUASHFS_BLKDEV_TYPE:
++ case SQUASHFS_CHRDEV_TYPE: {
++ squashfs_dev_inode_header inodep;
++
++ if(msBlk->swap) {
++ squashfs_dev_inode_header sinodep;
++
++ if(!squashfs_get_cached_block(s, (char *) &sinodep, block, offset, sizeof(sinodep),
++ &next_block, &next_offset))
++ goto failed_read;
++ SQUASHFS_SWAP_DEV_INODE_HEADER(&inodep, &sinodep);
++ } else
++ if(!squashfs_get_cached_block(s, (char *) &inodep, block, offset, sizeof(inodep),
++ &next_block, &next_offset))
++ goto failed_read;
++
++ i->i_size = 0;
++ i->i_mode |= (inodeb.inode_type == SQUASHFS_CHRDEV_TYPE) ? S_IFCHR : S_IFBLK;
++ init_special_inode(i, i->i_mode, inodep.rdev);
++ TRACE("Device inode %x:%x, rdev %x\n", SQUASHFS_INODE_BLK(inode), offset, inodep.rdev);
++ break;
++ }
++ case SQUASHFS_FIFO_TYPE:
++ case SQUASHFS_SOCKET_TYPE: {
++ i->i_size = 0;
++ i->i_mode |= (inodeb.inode_type == SQUASHFS_FIFO_TYPE) ? S_IFIFO : S_IFSOCK;
++ init_special_inode(i, i->i_mode, 0);
++ break;
++ }
++ default:
++ ERROR("Unknown inode type %d in squashfs_iget!\n", inodeb.inode_type);
++ goto failed_read1;
++ }
++
++ if(inodeb.guid == SQUASHFS_GUIDS)
++ i->i_gid = i->i_uid;
++ else
++ i->i_gid = msBlk->guid[inodeb.guid];
++
++ return i;
++
++failed_read:
++ ERROR("Unable to read inode [%x:%x]\n", block, offset);
++
++failed_read1:
++ return NULL;
++}
projects / openwrt.git / blobdiff