41 ecryptfs_decrypt_page_offset(struct ecryptfs_crypt_stat *crypt_stat,
46 ecryptfs_encrypt_page_offset(struct ecryptfs_crypt_stat *crypt_stat,
96 				  struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_calculate_md5()  argument
101 		.tfm = crypt_stat->hash_tfm,  in ecryptfs_calculate_md5()
106 	mutex_lock(&crypt_stat->cs_hash_tfm_mutex);  in ecryptfs_calculate_md5()
118 		crypt_stat->hash_tfm = desc.tfm;  in ecryptfs_calculate_md5()
142 	mutex_unlock(&crypt_stat->cs_hash_tfm_mutex);  in ecryptfs_calculate_md5()
179 int ecryptfs_derive_iv(char *iv, struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_derive_iv()  argument
188 		ecryptfs_dump_hex(crypt_stat->root_iv, crypt_stat->iv_bytes);  in ecryptfs_derive_iv()
194 	memcpy(src, crypt_stat->root_iv, crypt_stat->iv_bytes);  in ecryptfs_derive_iv()
195 	memset((src + crypt_stat->iv_bytes), 0, 16);  in ecryptfs_derive_iv()
196 	snprintf((src + crypt_stat->iv_bytes), 16, "%lld", offset);  in ecryptfs_derive_iv()
199 		ecryptfs_dump_hex(src, (crypt_stat->iv_bytes + 16));  in ecryptfs_derive_iv()
201 	rc = ecryptfs_calculate_md5(dst, crypt_stat, src,  in ecryptfs_derive_iv()
202 				    (crypt_stat->iv_bytes + 16));  in ecryptfs_derive_iv()
208 	memcpy(iv, dst, crypt_stat->iv_bytes);  in ecryptfs_derive_iv()
211 		ecryptfs_dump_hex(iv, crypt_stat->iv_bytes);  in ecryptfs_derive_iv()
224 ecryptfs_init_crypt_stat(struct ecryptfs_crypt_stat *crypt_stat)  in ecryptfs_init_crypt_stat()  argument
226 	memset((void *)crypt_stat, 0, sizeof(struct ecryptfs_crypt_stat));  in ecryptfs_init_crypt_stat()
227 	INIT_LIST_HEAD(&crypt_stat->keysig_list);  in ecryptfs_init_crypt_stat()
228 	mutex_init(&crypt_stat->keysig_list_mutex);  in ecryptfs_init_crypt_stat()
229 	mutex_init(&crypt_stat->cs_mutex);  in ecryptfs_init_crypt_stat()
230 	mutex_init(&crypt_stat->cs_tfm_mutex);  in ecryptfs_init_crypt_stat()
231 	mutex_init(&crypt_stat->cs_hash_tfm_mutex);  in ecryptfs_init_crypt_stat()
232 	crypt_stat->flags |= ECRYPTFS_STRUCT_INITIALIZED;  in ecryptfs_init_crypt_stat()
241 void ecryptfs_destroy_crypt_stat(struct ecryptfs_crypt_stat *crypt_stat)  in ecryptfs_destroy_crypt_stat()  argument
245 	if (crypt_stat->tfm)  in ecryptfs_destroy_crypt_stat()
246 		crypto_free_ablkcipher(crypt_stat->tfm);  in ecryptfs_destroy_crypt_stat()
247 	if (crypt_stat->hash_tfm)  in ecryptfs_destroy_crypt_stat()
248 		crypto_free_hash(crypt_stat->hash_tfm);  in ecryptfs_destroy_crypt_stat()
250 				 &crypt_stat->keysig_list, crypt_stat_list) {  in ecryptfs_destroy_crypt_stat()
254 	memset(crypt_stat, 0, sizeof(struct ecryptfs_crypt_stat));  in ecryptfs_destroy_crypt_stat()
348 static int encrypt_scatterlist(struct ecryptfs_crypt_stat *crypt_stat,  in encrypt_scatterlist()  argument
357 	BUG_ON(!crypt_stat || !crypt_stat->tfm  in encrypt_scatterlist()
358 	       || !(crypt_stat->flags & ECRYPTFS_STRUCT_INITIALIZED));  in encrypt_scatterlist()
361 				crypt_stat->key_size);  in encrypt_scatterlist()
362 		ecryptfs_dump_hex(crypt_stat->key,  in encrypt_scatterlist()
363 				  crypt_stat->key_size);  in encrypt_scatterlist()
368 	mutex_lock(&crypt_stat->cs_tfm_mutex);  in encrypt_scatterlist()
369 	req = ablkcipher_request_alloc(crypt_stat->tfm, GFP_NOFS);  in encrypt_scatterlist()
371 		mutex_unlock(&crypt_stat->cs_tfm_mutex);  in encrypt_scatterlist()
380 	if (!(crypt_stat->flags & ECRYPTFS_KEY_SET)) {  in encrypt_scatterlist()
381 		rc = crypto_ablkcipher_setkey(crypt_stat->tfm, crypt_stat->key,  in encrypt_scatterlist()
382 					      crypt_stat->key_size);  in encrypt_scatterlist()
387 			mutex_unlock(&crypt_stat->cs_tfm_mutex);  in encrypt_scatterlist()
391 		crypt_stat->flags |= ECRYPTFS_KEY_SET;  in encrypt_scatterlist()
393 	mutex_unlock(&crypt_stat->cs_tfm_mutex);  in encrypt_scatterlist()
415 					     struct ecryptfs_crypt_stat *crypt_stat)  in ecryptfs_lower_offset_for_extent()  argument
417 	(*offset) = ecryptfs_lower_header_size(crypt_stat)  in ecryptfs_lower_offset_for_extent()
418 		    + (crypt_stat->extent_size * extent_num);  in ecryptfs_lower_offset_for_extent()
435 				   struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_encrypt_extent()  argument
444 		       * (PAGE_CACHE_SIZE / crypt_stat->extent_size));  in ecryptfs_encrypt_extent()
445 	rc = ecryptfs_derive_iv(extent_iv, crypt_stat,  in ecryptfs_encrypt_extent()
453 	rc = ecryptfs_encrypt_page_offset(crypt_stat, enc_extent_page, 0,  in ecryptfs_encrypt_extent()
455 						 * crypt_stat->extent_size),  in ecryptfs_encrypt_extent()
456 					  crypt_stat->extent_size, extent_iv);  in ecryptfs_encrypt_extent()
488 	struct ecryptfs_crypt_stat *crypt_stat;  in ecryptfs_encrypt_page()  local
495 	crypt_stat =  in ecryptfs_encrypt_page()
496 		&(ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat);  in ecryptfs_encrypt_page()
497 	BUG_ON(!(crypt_stat->flags & ECRYPTFS_ENCRYPTED));  in ecryptfs_encrypt_page()
507 	     extent_offset < (PAGE_CACHE_SIZE / crypt_stat->extent_size);  in ecryptfs_encrypt_page()
511 		rc = ecryptfs_encrypt_extent(enc_extent_page, crypt_stat, page,  in ecryptfs_encrypt_page()
521 				      / crypt_stat->extent_size))  in ecryptfs_encrypt_page()
522 				  + extent_offset), crypt_stat);  in ecryptfs_encrypt_page()
524 					  offset, crypt_stat->extent_size);  in ecryptfs_encrypt_page()
542 				   struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_decrypt_extent()  argument
551 		       * (PAGE_CACHE_SIZE / crypt_stat->extent_size));  in ecryptfs_decrypt_extent()
552 	rc = ecryptfs_derive_iv(extent_iv, crypt_stat,  in ecryptfs_decrypt_extent()
560 	rc = ecryptfs_decrypt_page_offset(crypt_stat, page,  in ecryptfs_decrypt_extent()
562 					   * crypt_stat->extent_size),  in ecryptfs_decrypt_extent()
564 					  crypt_stat->extent_size, extent_iv);  in ecryptfs_decrypt_extent()
596 	struct ecryptfs_crypt_stat *crypt_stat;  in ecryptfs_decrypt_page()  local
603 	crypt_stat =  in ecryptfs_decrypt_page()
604 		&(ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat);  in ecryptfs_decrypt_page()
605 	BUG_ON(!(crypt_stat->flags & ECRYPTFS_ENCRYPTED));  in ecryptfs_decrypt_page()
615 	     extent_offset < (PAGE_CACHE_SIZE / crypt_stat->extent_size);  in ecryptfs_decrypt_page()
621 						  / crypt_stat->extent_size))  in ecryptfs_decrypt_page()
622 				  + extent_offset), crypt_stat);  in ecryptfs_decrypt_page()
624 					 crypt_stat->extent_size,  in ecryptfs_decrypt_page()
632 		rc = ecryptfs_decrypt_extent(page, crypt_stat, enc_extent_page,  in ecryptfs_decrypt_page()
658 static int decrypt_scatterlist(struct ecryptfs_crypt_stat *crypt_stat,  in decrypt_scatterlist()  argument
667 	BUG_ON(!crypt_stat || !crypt_stat->tfm  in decrypt_scatterlist()
668 	       || !(crypt_stat->flags & ECRYPTFS_STRUCT_INITIALIZED));  in decrypt_scatterlist()
671 				crypt_stat->key_size);  in decrypt_scatterlist()
672 		ecryptfs_dump_hex(crypt_stat->key,  in decrypt_scatterlist()
673 				  crypt_stat->key_size);  in decrypt_scatterlist()
678 	mutex_lock(&crypt_stat->cs_tfm_mutex);  in decrypt_scatterlist()
679 	req = ablkcipher_request_alloc(crypt_stat->tfm, GFP_NOFS);  in decrypt_scatterlist()
681 		mutex_unlock(&crypt_stat->cs_tfm_mutex);  in decrypt_scatterlist()
690 	if (!(crypt_stat->flags & ECRYPTFS_KEY_SET)) {  in decrypt_scatterlist()
691 		rc = crypto_ablkcipher_setkey(crypt_stat->tfm, crypt_stat->key,  in decrypt_scatterlist()
692 					      crypt_stat->key_size);  in decrypt_scatterlist()
697 			mutex_unlock(&crypt_stat->cs_tfm_mutex);  in decrypt_scatterlist()
701 		crypt_stat->flags |= ECRYPTFS_KEY_SET;  in decrypt_scatterlist()
703 	mutex_unlock(&crypt_stat->cs_tfm_mutex);  in decrypt_scatterlist()
733 ecryptfs_encrypt_page_offset(struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_encrypt_page_offset()  argument
745 	return encrypt_scatterlist(crypt_stat, &dst_sg, &src_sg, size, iv);  in ecryptfs_encrypt_page_offset()
761 ecryptfs_decrypt_page_offset(struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_decrypt_page_offset()  argument
774 	return decrypt_scatterlist(crypt_stat, &dst_sg, &src_sg, size, iv);  in ecryptfs_decrypt_page_offset()
788 int ecryptfs_init_crypt_ctx(struct ecryptfs_crypt_stat *crypt_stat)  in ecryptfs_init_crypt_ctx()  argument
793 	if (!crypt_stat->cipher) {  in ecryptfs_init_crypt_ctx()
800 			crypt_stat->cipher, (int)strlen(crypt_stat->cipher),  in ecryptfs_init_crypt_ctx()
801 			crypt_stat->key_size << 3);  in ecryptfs_init_crypt_ctx()
802 	if (crypt_stat->tfm) {  in ecryptfs_init_crypt_ctx()
806 	mutex_lock(&crypt_stat->cs_tfm_mutex);  in ecryptfs_init_crypt_ctx()
808 						    crypt_stat->cipher, "cbc");  in ecryptfs_init_crypt_ctx()
811 	crypt_stat->tfm = crypto_alloc_ablkcipher(full_alg_name, 0, 0);  in ecryptfs_init_crypt_ctx()
813 	if (IS_ERR(crypt_stat->tfm)) {  in ecryptfs_init_crypt_ctx()
814 		rc = PTR_ERR(crypt_stat->tfm);  in ecryptfs_init_crypt_ctx()
815 		crypt_stat->tfm = NULL;  in ecryptfs_init_crypt_ctx()
818 				crypt_stat->cipher);  in ecryptfs_init_crypt_ctx()
821 	crypto_ablkcipher_set_flags(crypt_stat->tfm, CRYPTO_TFM_REQ_WEAK_KEY);  in ecryptfs_init_crypt_ctx()
824 	mutex_unlock(&crypt_stat->cs_tfm_mutex);  in ecryptfs_init_crypt_ctx()
829 static void set_extent_mask_and_shift(struct ecryptfs_crypt_stat *crypt_stat)  in set_extent_mask_and_shift()  argument
833 	crypt_stat->extent_mask = 0xFFFFFFFF;  in set_extent_mask_and_shift()
834 	crypt_stat->extent_shift = 0;  in set_extent_mask_and_shift()
835 	if (crypt_stat->extent_size == 0)  in set_extent_mask_and_shift()
837 	extent_size_tmp = crypt_stat->extent_size;  in set_extent_mask_and_shift()
840 		crypt_stat->extent_mask <<= 1;  in set_extent_mask_and_shift()
841 		crypt_stat->extent_shift++;  in set_extent_mask_and_shift()
845 void ecryptfs_set_default_sizes(struct ecryptfs_crypt_stat *crypt_stat)  in ecryptfs_set_default_sizes()  argument
849 	crypt_stat->extent_size = ECRYPTFS_DEFAULT_EXTENT_SIZE;  in ecryptfs_set_default_sizes()
850 	set_extent_mask_and_shift(crypt_stat);  in ecryptfs_set_default_sizes()
851 	crypt_stat->iv_bytes = ECRYPTFS_DEFAULT_IV_BYTES;  in ecryptfs_set_default_sizes()
852 	if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)  in ecryptfs_set_default_sizes()
853 		crypt_stat->metadata_size = ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;  in ecryptfs_set_default_sizes()
856 			crypt_stat->metadata_size =  in ecryptfs_set_default_sizes()
859 			crypt_stat->metadata_size = PAGE_CACHE_SIZE;  in ecryptfs_set_default_sizes()
869 int ecryptfs_compute_root_iv(struct ecryptfs_crypt_stat *crypt_stat)  in ecryptfs_compute_root_iv()  argument
874 	BUG_ON(crypt_stat->iv_bytes > MD5_DIGEST_SIZE);  in ecryptfs_compute_root_iv()
875 	BUG_ON(crypt_stat->iv_bytes <= 0);  in ecryptfs_compute_root_iv()
876 	if (!(crypt_stat->flags & ECRYPTFS_KEY_VALID)) {  in ecryptfs_compute_root_iv()
882 	rc = ecryptfs_calculate_md5(dst, crypt_stat, crypt_stat->key,  in ecryptfs_compute_root_iv()
883 				    crypt_stat->key_size);  in ecryptfs_compute_root_iv()
889 	memcpy(crypt_stat->root_iv, dst, crypt_stat->iv_bytes);  in ecryptfs_compute_root_iv()
892 		memset(crypt_stat->root_iv, 0, crypt_stat->iv_bytes);  in ecryptfs_compute_root_iv()
893 		crypt_stat->flags |= ECRYPTFS_SECURITY_WARNING;  in ecryptfs_compute_root_iv()
898 static void ecryptfs_generate_new_key(struct ecryptfs_crypt_stat *crypt_stat)  in ecryptfs_generate_new_key()  argument
900 	get_random_bytes(crypt_stat->key, crypt_stat->key_size);  in ecryptfs_generate_new_key()
901 	crypt_stat->flags |= ECRYPTFS_KEY_VALID;  in ecryptfs_generate_new_key()
902 	ecryptfs_compute_root_iv(crypt_stat);  in ecryptfs_generate_new_key()
905 		ecryptfs_dump_hex(crypt_stat->key,  in ecryptfs_generate_new_key()
906 				  crypt_stat->key_size);  in ecryptfs_generate_new_key()
919 	struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_copy_mount_wide_flags_to_inode_flags()  argument
923 		crypt_stat->flags |= ECRYPTFS_METADATA_IN_XATTR;  in ecryptfs_copy_mount_wide_flags_to_inode_flags()
925 		crypt_stat->flags |= ECRYPTFS_VIEW_AS_ENCRYPTED;  in ecryptfs_copy_mount_wide_flags_to_inode_flags()
927 		crypt_stat->flags |= ECRYPTFS_ENCRYPT_FILENAMES;  in ecryptfs_copy_mount_wide_flags_to_inode_flags()
930 			crypt_stat->flags |= ECRYPTFS_ENCFN_USE_MOUNT_FNEK;  in ecryptfs_copy_mount_wide_flags_to_inode_flags()
933 			crypt_stat->flags |= ECRYPTFS_ENCFN_USE_FEK;  in ecryptfs_copy_mount_wide_flags_to_inode_flags()
938 	struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_copy_mount_wide_sigs_to_inode_sigs()  argument
944 	mutex_lock(&crypt_stat->keysig_list_mutex);  in ecryptfs_copy_mount_wide_sigs_to_inode_sigs()
952 		rc = ecryptfs_add_keysig(crypt_stat, global_auth_tok->sig);  in ecryptfs_copy_mount_wide_sigs_to_inode_sigs()
961 	mutex_unlock(&crypt_stat->keysig_list_mutex);  in ecryptfs_copy_mount_wide_sigs_to_inode_sigs()
973 	struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_set_default_crypt_stat_vals()  argument
976 	ecryptfs_copy_mount_wide_flags_to_inode_flags(crypt_stat,  in ecryptfs_set_default_crypt_stat_vals()
978 	ecryptfs_set_default_sizes(crypt_stat);  in ecryptfs_set_default_crypt_stat_vals()
979 	strcpy(crypt_stat->cipher, ECRYPTFS_DEFAULT_CIPHER);  in ecryptfs_set_default_crypt_stat_vals()
980 	crypt_stat->key_size = ECRYPTFS_DEFAULT_KEY_BYTES;  in ecryptfs_set_default_crypt_stat_vals()
981 	crypt_stat->flags &= ~(ECRYPTFS_KEY_VALID);  in ecryptfs_set_default_crypt_stat_vals()
982 	crypt_stat->file_version = ECRYPTFS_FILE_VERSION;  in ecryptfs_set_default_crypt_stat_vals()
983 	crypt_stat->mount_crypt_stat = mount_crypt_stat;  in ecryptfs_set_default_crypt_stat_vals()
1007 	struct ecryptfs_crypt_stat *crypt_stat =  in ecryptfs_new_file_context()  local
1008 	    &ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat;  in ecryptfs_new_file_context()
1015 	ecryptfs_set_default_crypt_stat_vals(crypt_stat, mount_crypt_stat);  in ecryptfs_new_file_context()
1016 	crypt_stat->flags |= (ECRYPTFS_ENCRYPTED | ECRYPTFS_KEY_VALID);  in ecryptfs_new_file_context()
1017 	ecryptfs_copy_mount_wide_flags_to_inode_flags(crypt_stat,  in ecryptfs_new_file_context()
1019 	rc = ecryptfs_copy_mount_wide_sigs_to_inode_sigs(crypt_stat,  in ecryptfs_new_file_context()
1028 	memcpy(crypt_stat->cipher,  in ecryptfs_new_file_context()
1031 	crypt_stat->cipher[cipher_name_len] = '\0';  in ecryptfs_new_file_context()
1032 	crypt_stat->key_size =  in ecryptfs_new_file_context()
1034 	ecryptfs_generate_new_key(crypt_stat);  in ecryptfs_new_file_context()
1035 	rc = ecryptfs_init_crypt_ctx(crypt_stat);  in ecryptfs_new_file_context()
1039 				crypt_stat->cipher, rc);  in ecryptfs_new_file_context()
1087 static int ecryptfs_process_flags(struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_process_flags()  argument
1098 			crypt_stat->flags |= ecryptfs_flag_map[i].local_flag;  in ecryptfs_process_flags()
1100 			crypt_stat->flags &= ~(ecryptfs_flag_map[i].local_flag);  in ecryptfs_process_flags()
1102 	crypt_stat->file_version = ((flags >> 24) & 0xFF);  in ecryptfs_process_flags()
1127 				     struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_write_crypt_stat_flags()  argument
1135 		if (crypt_stat->flags & ecryptfs_flag_map[i].local_flag)  in ecryptfs_write_crypt_stat_flags()
1138 	flags |= ((((u8)crypt_stat->file_version) << 24) & 0xFF000000);  in ecryptfs_write_crypt_stat_flags()
1240 			       struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_write_header_metadata()  argument
1246 	header_extent_size = (u32)crypt_stat->extent_size;  in ecryptfs_write_header_metadata()
1248 		(u16)(crypt_stat->metadata_size / crypt_stat->extent_size);  in ecryptfs_write_header_metadata()
1290 				       struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_write_headers_virt()  argument
1300 	ecryptfs_write_crypt_stat_flags((page_virt + offset), crypt_stat,  in ecryptfs_write_headers_virt()
1303 	ecryptfs_write_header_metadata((page_virt + offset), crypt_stat,  in ecryptfs_write_headers_virt()
1306 	rc = ecryptfs_generate_key_packet_set((page_virt + offset), crypt_stat,  in ecryptfs_write_headers_virt()
1373 	struct ecryptfs_crypt_stat *crypt_stat =  in ecryptfs_write_metadata()  local
1374 		&ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat;  in ecryptfs_write_metadata()
1381 	if (likely(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) {  in ecryptfs_write_metadata()
1382 		if (!(crypt_stat->flags & ECRYPTFS_KEY_VALID)) {  in ecryptfs_write_metadata()
1393 	virt_len = crypt_stat->metadata_size;  in ecryptfs_write_metadata()
1403 	rc = ecryptfs_write_headers_virt(virt, virt_len, &size, crypt_stat,  in ecryptfs_write_metadata()
1410 	if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)  in ecryptfs_write_metadata()
1429 static int parse_header_metadata(struct ecryptfs_crypt_stat *crypt_stat,  in parse_header_metadata()  argument
1440 	crypt_stat->metadata_size = (((size_t)num_header_extents_at_front  in parse_header_metadata()
1444 	    && (crypt_stat->metadata_size  in parse_header_metadata()
1448 		       crypt_stat->metadata_size);  in parse_header_metadata()
1461 static void set_default_header_data(struct ecryptfs_crypt_stat *crypt_stat)  in set_default_header_data()  argument
1463 	crypt_stat->metadata_size = ECRYPTFS_MINIMUM_HEADER_EXTENT_SIZE;  in set_default_header_data()
1469 	struct ecryptfs_crypt_stat *crypt_stat;  in ecryptfs_i_size_init()  local
1472 	crypt_stat = &ecryptfs_inode_to_private(inode)->crypt_stat;  in ecryptfs_i_size_init()
1477 		if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)  in ecryptfs_i_size_init()
1478 			file_size += crypt_stat->metadata_size;  in ecryptfs_i_size_init()
1482 	crypt_stat->flags |= ECRYPTFS_I_SIZE_INITIALIZED;  in ecryptfs_i_size_init()
1498 				      struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_read_headers_virt()  argument
1506 	ecryptfs_set_default_sizes(crypt_stat);  in ecryptfs_read_headers_virt()
1507 	crypt_stat->mount_crypt_stat = &ecryptfs_superblock_to_private(  in ecryptfs_read_headers_virt()
1513 	if (!(crypt_stat->flags & ECRYPTFS_I_SIZE_INITIALIZED))  in ecryptfs_read_headers_virt()
1516 	rc = ecryptfs_process_flags(crypt_stat, (page_virt + offset),  in ecryptfs_read_headers_virt()
1522 	if (crypt_stat->file_version > ECRYPTFS_SUPPORTED_FILE_VERSION) {  in ecryptfs_read_headers_virt()
1526 				crypt_stat->file_version,  in ecryptfs_read_headers_virt()
1532 	if (crypt_stat->file_version >= 1) {  in ecryptfs_read_headers_virt()
1533 		rc = parse_header_metadata(crypt_stat, (page_virt + offset),  in ecryptfs_read_headers_virt()
1541 		set_default_header_data(crypt_stat);  in ecryptfs_read_headers_virt()
1542 	rc = ecryptfs_parse_packet_set(crypt_stat, (page_virt + offset),  in ecryptfs_read_headers_virt()
1614 	struct ecryptfs_crypt_stat *crypt_stat =  in ecryptfs_read_metadata()  local
1615 	    &ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat;  in ecryptfs_read_metadata()
1620 	ecryptfs_copy_mount_wide_flags_to_inode_flags(crypt_stat,  in ecryptfs_read_metadata()
1630 	rc = ecryptfs_read_lower(page_virt, 0, crypt_stat->extent_size,  in ecryptfs_read_metadata()
1633 		rc = ecryptfs_read_headers_virt(page_virt, crypt_stat,  in ecryptfs_read_metadata()
1647 		rc = ecryptfs_read_headers_virt(page_virt, crypt_stat,  in ecryptfs_read_metadata()
1656 		if (crypt_stat->mount_crypt_stat->flags  in ecryptfs_read_metadata()
1658 			crypt_stat->flags |= ECRYPTFS_METADATA_IN_XATTR;  in ecryptfs_read_metadata()
1688 			  struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_encrypt_filename()  argument
1695 	if ((crypt_stat && (crypt_stat->flags & ECRYPTFS_ENCFN_USE_MOUNT_FNEK))  in ecryptfs_encrypt_filename()
2134 	struct ecryptfs_crypt_stat *crypt_stat,  in ecryptfs_encrypt_and_encode_filename()  argument
2143 	if ((crypt_stat && (crypt_stat->flags & ECRYPTFS_ENCRYPT_FILENAMES))  in ecryptfs_encrypt_and_encode_filename()
2158 		rc = ecryptfs_encrypt_filename(filename, crypt_stat,  in ecryptfs_encrypt_and_encode_filename()
2170 		if ((crypt_stat && (crypt_stat->flags  in ecryptfs_encrypt_and_encode_filename()
2192 		if ((crypt_stat && (crypt_stat->flags  in ecryptfs_encrypt_and_encode_filename()