fs/ext2fs/ext2_inode_cnv.c

145 ext2_ei2i(struct ext2fs_dinode *ei, struct inode *ip)
147 	struct m_ext2fs *fs = ip->i_e2fs;
152 	if ((ip->i_number < EXT2_FIRST_INO(fs) && ip->i_number != EXT2_ROOTINO) ||
153 	    (ip->i_number < EXT2_ROOTINO) ||
154 	    (ip->i_number > le32toh(fs->e2fs->e2fs_icount))) {
165 	ip->i_nlink = le16toh(ei->e2di_nlink);
166 	ip->i_mode = ip->i_nlink ? le16toh(ei->e2di_mode) : 0;
167 	if (ip->i_number == EXT2_ROOTINO &&
168 	    (ip->i_nlink < 2 || !S_ISDIR(ip->i_mode))) {
184 	ip->i_size = le32toh(ei->e2di_size);
185 	if (S_ISREG(ip->i_mode))
186 		ip->i_size |= (uint64_t)le32toh(ei->e2di_size_high) << 32;
187 	ip->i_atime = (signed)le32toh(ei->e2di_atime);
188 	ip->i_mtime = (signed)le32toh(ei->e2di_mtime);
189 	ip->i_ctime = (signed)le32toh(ei->e2di_ctime);
190 	if (E2DI_HAS_XTIME(ip)) {
191 		ext2_decode_extra_time(&ip->i_atime, &ip->i_atimensec,
193 		ext2_decode_extra_time(&ip->i_mtime, &ip->i_mtimensec,
195 		ext2_decode_extra_time(&ip->i_ctime, &ip->i_ctimensec,
197 		ip->i_birthtime = (signed)le32toh(ei->e2di_crtime);
198 		ext2_decode_extra_time(&ip->i_birthtime, &ip->i_birthnsec,
201 	ip->i_flags = 0;
203 	ip->i_flags |= (ei_flags_host & EXT2_APPEND) ? SF_APPEND : 0;
204 	ip->i_flags |= (ei_flags_host & EXT2_IMMUTABLE) ? SF_IMMUTABLE : 0;
205 	ip->i_flags |= (ei_flags_host & EXT2_NODUMP) ? UF_NODUMP : 0;
206 	ip->i_flag |= (ei_flags_host & EXT3_INDEX) ? IN_E3INDEX : 0;
207 	ip->i_flag |= (ei_flags_host & EXT4_EXTENTS) ? IN_E4EXTENTS : 0;
208 	ip->i_blocks = le32toh(ei->e2di_nblock);
209 	ip->i_facl = le32toh(ei->e2di_facl);
210 	if (E2DI_HAS_HUGE_FILE(ip)) {
211 		ip->i_blocks |= (uint64_t)le16toh(ei->e2di_nblock_high) << 32;
212 		ip->i_facl |= (uint64_t)le16toh(ei->e2di_facl_high) << 32;
214 			ip->i_blocks = fsbtodb(ip->i_e2fs, ip->i_blocks);
216 	ip->i_gen = le32toh(ei->e2di_gen);
217 	ip->i_uid = le16toh(ei->e2di_uid);
218 	ip->i_gid = le16toh(ei->e2di_gid);
219 	ip->i_uid |= (uint32_t)le16toh(ei->e2di_uid_high) << 16;
220 	ip->i_gid |= (uint32_t)le16toh(ei->e2di_gid_high) << 16;
222 	if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) {
224 			ip->i_rdev = ext2_old_decode_dev(le32toh(ei->e2di_blocks[0]));
226 			ip->i_rdev = ext2_new_decode_dev(le32toh(ei->e2di_blocks[1]));
227 	} else if ((ip->i_flag & IN_E4EXTENTS)) {
228 		memcpy(ip->i_data, ei->e2di_blocks, sizeof(ei->e2di_blocks));
231 			ip->i_db[i] = le32toh(ei->e2di_blocks[i]);
233 			ip->i_ib[i] = le32toh(ei->e2di_blocks[EXT2_NDIR_BLOCKS + i]);
237 	return (ext2_ei_csum_verify(ip, ei));
254 ext2_i2ei(struct inode *ip, struct ext2fs_dinode *ei)
259 	fs = ip->i_e2fs;
260 	ei->e2di_mode = htole16(ip->i_mode);
261 	ei->e2di_nlink = htole16(ip->i_nlink);
262 	ei->e2di_size = htole32(ip->i_size);
263 	if (S_ISREG(ip->i_mode))
264 		ei->e2di_size_high = htole32(ip->i_size >> 32);
265 	ei->e2di_atime = htole32(ip->i_atime);
266 	ei->e2di_mtime = htole32(ip->i_mtime);
267 	ei->e2di_ctime = htole32(ip->i_ctime);
274 	if (E2DI_HAS_XTIME(ip)) {
275 		ei->e2di_ctime_extra = ext2_encode_extra_time(ip->i_ctime,
276 		    ip->i_ctimensec);
277 		ei->e2di_mtime_extra = ext2_encode_extra_time(ip->i_mtime,
278 		    ip->i_mtimensec);
279 		ei->e2di_atime_extra = ext2_encode_extra_time(ip->i_atime,
280 		    ip->i_atimensec);
281 		ei->e2di_crtime = htole32(ip->i_birthtime);
282 		ei->e2di_crtime_extra = ext2_encode_extra_time(ip->i_birthtime,
283 		    ip->i_birthnsec);
287 	ei->e2di_flags |= htole32((ip->i_flags & SF_APPEND) ? EXT2_APPEND : 0);
288 	ei->e2di_flags |= htole32((ip->i_flags & SF_IMMUTABLE) ? EXT2_IMMUTABLE : 0);
289 	ei->e2di_flags |= htole32((ip->i_flags & UF_NODUMP) ? EXT2_NODUMP : 0);
290 	ei->e2di_flags |= htole32((ip->i_flag & IN_E3INDEX) ? EXT3_INDEX : 0);
291 	ei->e2di_flags |= htole32((ip->i_flag & IN_E4EXTENTS) ? EXT4_EXTENTS : 0);
292 	if (ip->i_blocks > ~0U &&
297 	if (ip->i_blocks <= 0xffffffffffffULL) {
298 		ei->e2di_nblock = htole32(ip->i_blocks & 0xffffffff);
299 		ei->e2di_nblock_high = htole16(ip->i_blocks >> 32 & 0xffff);
302 		ei->e2di_nblock = htole32(dbtofsb(fs, ip->i_blocks));
303 		ei->e2di_nblock_high = htole16(dbtofsb(fs, ip->i_blocks) >> 32 & 0xffff);
306 	ei->e2di_facl = htole32(ip->i_facl & 0xffffffff);
307 	ei->e2di_facl_high = htole16(ip->i_facl >> 32 & 0xffff);
308 	ei->e2di_gen = htole32(ip->i_gen);
309 	ei->e2di_uid = htole16(ip->i_uid & 0xffff);
310 	ei->e2di_uid_high = htole16(ip->i_uid >> 16 & 0xffff);
311 	ei->e2di_gid = htole16(ip->i_gid & 0xffff);
312 	ei->e2di_gid_high = htole16(ip->i_gid >> 16 & 0xffff);
314 	if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode)) {
315 		if (ext2_old_valid_dev(ip->i_rdev)) {
316 			ei->e2di_blocks[0] = htole32(ext2_old_encode_dev(ip->i_rdev));
320 			ei->e2di_blocks[1] = htole32(ext2_new_encode_dev(ip->i_rdev));
323 	} else if ((ip->i_flag & IN_E4EXTENTS)) {
324 		memcpy(ei->e2di_blocks, ip->i_data, sizeof(ei->e2di_blocks));
327 			ei->e2di_blocks[i] = htole32(ip->i_db[i]);
329 			ei->e2di_blocks[EXT2_NDIR_BLOCKS + i] = htole32(ip->i_ib[i]);
333 	ext2_ei_csum_set(ip, ei);