67 static int dm_ima_alloc_and_copy_name_uuid(struct mapped_device *md, char **dev_name,  in dm_ima_alloc_and_copy_name_uuid()  argument
83 	r = dm_copy_name_and_uuid(md, *dev_name, *dev_uuid);  in dm_ima_alloc_and_copy_name_uuid()
102 static int dm_ima_alloc_and_copy_device_data(struct mapped_device *md, char **device_data,  in dm_ima_alloc_and_copy_device_data()  argument
108 	r = dm_ima_alloc_and_copy_name_uuid(md, &dev_name, &dev_uuid, noio);  in dm_ima_alloc_and_copy_device_data()
120 		  dev_name, dev_uuid, md->disk->major, md->disk->first_minor,  in dm_ima_alloc_and_copy_device_data()
121 		  md->disk->minors, num_targets);  in dm_ima_alloc_and_copy_device_data()
149 static int dm_ima_alloc_and_copy_capacity_str(struct mapped_device *md, char **capacity_str,  in dm_ima_alloc_and_copy_capacity_str()  argument
154 	capacity = get_capacity(md->disk);  in dm_ima_alloc_and_copy_capacity_str()
169 void dm_ima_reset_data(struct mapped_device *md)  in dm_ima_reset_data()  argument
171 	memset(&(md->ima), 0, sizeof(md->ima));  in dm_ima_reset_data()
172 	md->ima.dm_version_str_len = strlen(DM_IMA_VERSION_STR);  in dm_ima_reset_data()
212 	if (dm_ima_alloc_and_copy_device_data(table->md, &device_data_buf, num_targets, noio))  in dm_ima_measure_on_table_load()
229 	memcpy(ima_buf + l, DM_IMA_VERSION_STR, table->md->ima.dm_version_str_len);  in dm_ima_measure_on_table_load()
230 	l += table->md->ima.dm_version_str_len;  in dm_ima_measure_on_table_load()
289 			memcpy(ima_buf + l, DM_IMA_VERSION_STR, table->md->ima.dm_version_str_len);  in dm_ima_measure_on_table_load()
290 			l += table->md->ima.dm_version_str_len;  in dm_ima_measure_on_table_load()
342 	if (table->md->ima.active_table.hash != table->md->ima.inactive_table.hash)  in dm_ima_measure_on_table_load()
343 		kfree(table->md->ima.inactive_table.hash);  in dm_ima_measure_on_table_load()
345 	table->md->ima.inactive_table.hash = digest_buf;  in dm_ima_measure_on_table_load()
346 	table->md->ima.inactive_table.hash_len = strlen(digest_buf);  in dm_ima_measure_on_table_load()
347 	table->md->ima.inactive_table.num_targets = num_targets;  in dm_ima_measure_on_table_load()
349 	if (table->md->ima.active_table.device_metadata !=  in dm_ima_measure_on_table_load()
350 	    table->md->ima.inactive_table.device_metadata)  in dm_ima_measure_on_table_load()
351 		kfree(table->md->ima.inactive_table.device_metadata);  in dm_ima_measure_on_table_load()
353 	table->md->ima.inactive_table.device_metadata = device_data_buf;  in dm_ima_measure_on_table_load()
354 	table->md->ima.inactive_table.device_metadata_len = device_data_buf_len;  in dm_ima_measure_on_table_load()
372 void dm_ima_measure_on_device_resume(struct mapped_device *md, bool swap)  in dm_ima_measure_on_device_resume()  argument
386 	r = dm_ima_alloc_and_copy_capacity_str(md, &capacity_str, noio);  in dm_ima_measure_on_device_resume()
390 	memcpy(device_table_data + l, DM_IMA_VERSION_STR, md->ima.dm_version_str_len);  in dm_ima_measure_on_device_resume()
391 	l += md->ima.dm_version_str_len;  in dm_ima_measure_on_device_resume()
394 		if (md->ima.active_table.hash != md->ima.inactive_table.hash)  in dm_ima_measure_on_device_resume()
395 			kfree(md->ima.active_table.hash);  in dm_ima_measure_on_device_resume()
397 		md->ima.active_table.hash = NULL;  in dm_ima_measure_on_device_resume()
398 		md->ima.active_table.hash_len = 0;  in dm_ima_measure_on_device_resume()
400 		if (md->ima.active_table.device_metadata !=  in dm_ima_measure_on_device_resume()
401 		    md->ima.inactive_table.device_metadata)  in dm_ima_measure_on_device_resume()
402 			kfree(md->ima.active_table.device_metadata);  in dm_ima_measure_on_device_resume()
404 		md->ima.active_table.device_metadata = NULL;  in dm_ima_measure_on_device_resume()
405 		md->ima.active_table.device_metadata_len = 0;  in dm_ima_measure_on_device_resume()
406 		md->ima.active_table.num_targets = 0;  in dm_ima_measure_on_device_resume()
408 		if (md->ima.inactive_table.hash) {  in dm_ima_measure_on_device_resume()
409 			md->ima.active_table.hash = md->ima.inactive_table.hash;  in dm_ima_measure_on_device_resume()
410 			md->ima.active_table.hash_len = md->ima.inactive_table.hash_len;  in dm_ima_measure_on_device_resume()
411 			md->ima.inactive_table.hash = NULL;  in dm_ima_measure_on_device_resume()
412 			md->ima.inactive_table.hash_len = 0;  in dm_ima_measure_on_device_resume()
415 		if (md->ima.inactive_table.device_metadata) {  in dm_ima_measure_on_device_resume()
416 			md->ima.active_table.device_metadata =  in dm_ima_measure_on_device_resume()
417 				md->ima.inactive_table.device_metadata;  in dm_ima_measure_on_device_resume()
418 			md->ima.active_table.device_metadata_len =  in dm_ima_measure_on_device_resume()
419 				md->ima.inactive_table.device_metadata_len;  in dm_ima_measure_on_device_resume()
420 			md->ima.active_table.num_targets = md->ima.inactive_table.num_targets;  in dm_ima_measure_on_device_resume()
421 			md->ima.inactive_table.device_metadata = NULL;  in dm_ima_measure_on_device_resume()
422 			md->ima.inactive_table.device_metadata_len = 0;  in dm_ima_measure_on_device_resume()
423 			md->ima.inactive_table.num_targets = 0;  in dm_ima_measure_on_device_resume()
427 	if (md->ima.active_table.device_metadata) {  in dm_ima_measure_on_device_resume()
428 		memcpy(device_table_data + l, md->ima.active_table.device_metadata,  in dm_ima_measure_on_device_resume()
429 		       md->ima.active_table.device_metadata_len);  in dm_ima_measure_on_device_resume()
430 		l += md->ima.active_table.device_metadata_len;  in dm_ima_measure_on_device_resume()
435 	if (md->ima.active_table.hash) {  in dm_ima_measure_on_device_resume()
439 		memcpy(device_table_data + l, md->ima.active_table.hash,  in dm_ima_measure_on_device_resume()
440 		       md->ima.active_table.hash_len);  in dm_ima_measure_on_device_resume()
441 		l += md->ima.active_table.hash_len;  in dm_ima_measure_on_device_resume()
450 		r = dm_ima_alloc_and_copy_name_uuid(md, &dev_name, &dev_uuid, noio);  in dm_ima_measure_on_device_resume()
477 void dm_ima_measure_on_device_remove(struct mapped_device *md, bool remove_all)  in dm_ima_measure_on_device_remove()  argument
500 	r = dm_ima_alloc_and_copy_capacity_str(md, &capacity_str, noio);  in dm_ima_measure_on_device_remove()
506 	memcpy(device_table_data + l, DM_IMA_VERSION_STR, md->ima.dm_version_str_len);  in dm_ima_measure_on_device_remove()
507 	l += md->ima.dm_version_str_len;  in dm_ima_measure_on_device_remove()
509 	if (md->ima.active_table.device_metadata) {  in dm_ima_measure_on_device_remove()
513 		memcpy(device_table_data + l, md->ima.active_table.device_metadata,  in dm_ima_measure_on_device_remove()
514 		       md->ima.active_table.device_metadata_len);  in dm_ima_measure_on_device_remove()
515 		l += md->ima.active_table.device_metadata_len;  in dm_ima_measure_on_device_remove()
520 	if (md->ima.inactive_table.device_metadata) {  in dm_ima_measure_on_device_remove()
524 		memcpy(device_table_data + l, md->ima.inactive_table.device_metadata,  in dm_ima_measure_on_device_remove()
525 		       md->ima.inactive_table.device_metadata_len);  in dm_ima_measure_on_device_remove()
526 		l += md->ima.inactive_table.device_metadata_len;  in dm_ima_measure_on_device_remove()
531 	if (md->ima.active_table.hash) {  in dm_ima_measure_on_device_remove()
535 		memcpy(device_table_data + l, md->ima.active_table.hash,  in dm_ima_measure_on_device_remove()
536 			   md->ima.active_table.hash_len);  in dm_ima_measure_on_device_remove()
537 		l += md->ima.active_table.hash_len;  in dm_ima_measure_on_device_remove()
545 	if (md->ima.inactive_table.hash) {  in dm_ima_measure_on_device_remove()
549 		memcpy(device_table_data + l, md->ima.inactive_table.hash,  in dm_ima_measure_on_device_remove()
550 		       md->ima.inactive_table.hash_len);  in dm_ima_measure_on_device_remove()
551 		l += md->ima.inactive_table.hash_len;  in dm_ima_measure_on_device_remove()
564 		if (dm_ima_alloc_and_copy_name_uuid(md, &dev_name, &dev_uuid, noio))  in dm_ima_measure_on_device_remove()
588 	kfree(md->ima.active_table.device_metadata);  in dm_ima_measure_on_device_remove()
590 	if (md->ima.active_table.device_metadata !=  in dm_ima_measure_on_device_remove()
591 	    md->ima.inactive_table.device_metadata)  in dm_ima_measure_on_device_remove()
592 		kfree(md->ima.inactive_table.device_metadata);  in dm_ima_measure_on_device_remove()
594 	kfree(md->ima.active_table.hash);  in dm_ima_measure_on_device_remove()
596 	if (md->ima.active_table.hash != md->ima.inactive_table.hash)  in dm_ima_measure_on_device_remove()
597 		kfree(md->ima.inactive_table.hash);  in dm_ima_measure_on_device_remove()
599 	dm_ima_reset_data(md);  in dm_ima_measure_on_device_remove()
608 void dm_ima_measure_on_table_clear(struct mapped_device *md, bool new_map)  in dm_ima_measure_on_table_clear()  argument
622 	r = dm_ima_alloc_and_copy_capacity_str(md, &capacity_str, noio);  in dm_ima_measure_on_table_clear()
626 	memcpy(device_table_data + l, DM_IMA_VERSION_STR, md->ima.dm_version_str_len);  in dm_ima_measure_on_table_clear()
627 	l += md->ima.dm_version_str_len;  in dm_ima_measure_on_table_clear()
629 	if (md->ima.inactive_table.device_metadata_len &&  in dm_ima_measure_on_table_clear()
630 	    md->ima.inactive_table.hash_len) {  in dm_ima_measure_on_table_clear()
631 		memcpy(device_table_data + l, md->ima.inactive_table.device_metadata,  in dm_ima_measure_on_table_clear()
632 		       md->ima.inactive_table.device_metadata_len);  in dm_ima_measure_on_table_clear()
633 		l += md->ima.inactive_table.device_metadata_len;  in dm_ima_measure_on_table_clear()
638 		memcpy(device_table_data + l, md->ima.inactive_table.hash,  in dm_ima_measure_on_table_clear()
639 			   md->ima.inactive_table.hash_len);  in dm_ima_measure_on_table_clear()
641 		l += md->ima.inactive_table.hash_len;  in dm_ima_measure_on_table_clear()
650 		if (dm_ima_alloc_and_copy_name_uuid(md, &dev_name, &dev_uuid, noio))  in dm_ima_measure_on_table_clear()
666 		if (md->ima.inactive_table.hash &&  in dm_ima_measure_on_table_clear()
667 		    md->ima.inactive_table.hash != md->ima.active_table.hash)  in dm_ima_measure_on_table_clear()
668 			kfree(md->ima.inactive_table.hash);  in dm_ima_measure_on_table_clear()
670 		md->ima.inactive_table.hash = NULL;  in dm_ima_measure_on_table_clear()
671 		md->ima.inactive_table.hash_len = 0;  in dm_ima_measure_on_table_clear()
673 		if (md->ima.inactive_table.device_metadata &&  in dm_ima_measure_on_table_clear()
674 		    md->ima.inactive_table.device_metadata != md->ima.active_table.device_metadata)  in dm_ima_measure_on_table_clear()
675 			kfree(md->ima.inactive_table.device_metadata);  in dm_ima_measure_on_table_clear()
677 		md->ima.inactive_table.device_metadata = NULL;  in dm_ima_measure_on_table_clear()
678 		md->ima.inactive_table.device_metadata_len = 0;  in dm_ima_measure_on_table_clear()
679 		md->ima.inactive_table.num_targets = 0;  in dm_ima_measure_on_table_clear()
681 		if (md->ima.active_table.hash) {  in dm_ima_measure_on_table_clear()
682 			md->ima.inactive_table.hash = md->ima.active_table.hash;  in dm_ima_measure_on_table_clear()
683 			md->ima.inactive_table.hash_len = md->ima.active_table.hash_len;  in dm_ima_measure_on_table_clear()
686 		if (md->ima.active_table.device_metadata) {  in dm_ima_measure_on_table_clear()
687 			md->ima.inactive_table.device_metadata =  in dm_ima_measure_on_table_clear()
688 				md->ima.active_table.device_metadata;  in dm_ima_measure_on_table_clear()
689 			md->ima.inactive_table.device_metadata_len =  in dm_ima_measure_on_table_clear()
690 				md->ima.active_table.device_metadata_len;  in dm_ima_measure_on_table_clear()
691 			md->ima.inactive_table.num_targets =  in dm_ima_measure_on_table_clear()
692 				md->ima.active_table.num_targets;  in dm_ima_measure_on_table_clear()
707 void dm_ima_measure_on_device_rename(struct mapped_device *md)  in dm_ima_measure_on_device_rename()  argument
714 	if (dm_ima_alloc_and_copy_device_data(md, &new_device_data,  in dm_ima_measure_on_device_rename()
715 					      md->ima.active_table.num_targets, noio))  in dm_ima_measure_on_device_rename()
718 	if (dm_ima_alloc_and_copy_name_uuid(md, &new_dev_name, &new_dev_uuid, noio))  in dm_ima_measure_on_device_rename()
725 	r = dm_ima_alloc_and_copy_capacity_str(md, &capacity_str, noio);  in dm_ima_measure_on_device_rename()
729 	old_device_data = md->ima.active_table.device_metadata;  in dm_ima_measure_on_device_rename()
731 	md->ima.active_table.device_metadata = new_device_data;  in dm_ima_measure_on_device_rename()
732 	md->ima.active_table.device_metadata_len = strlen(new_device_data);  in dm_ima_measure_on_device_rename()