68 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
84 	r = dm_copy_name_and_uuid(md, *dev_name, *dev_uuid);  in dm_ima_alloc_and_copy_name_uuid()
103 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
109 	r = dm_ima_alloc_and_copy_name_uuid(md, &dev_name, &dev_uuid, noio);  in dm_ima_alloc_and_copy_device_data()
121 		  dev_name, dev_uuid, md->disk->major, md->disk->first_minor,  in dm_ima_alloc_and_copy_device_data()
122 		  md->disk->minors, num_targets);  in dm_ima_alloc_and_copy_device_data()
150 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
155 	capacity = get_capacity(md->disk);  in dm_ima_alloc_and_copy_capacity_str()
170 void dm_ima_reset_data(struct mapped_device *md)  in dm_ima_reset_data()  argument
172 	memset(&(md->ima), 0, sizeof(md->ima));  in dm_ima_reset_data()
173 	md->ima.dm_version_str_len = strlen(DM_IMA_VERSION_STR);  in dm_ima_reset_data()
213 	if (dm_ima_alloc_and_copy_device_data(table->md, &device_data_buf, num_targets, noio))  in dm_ima_measure_on_table_load()
230 	memcpy(ima_buf + l, DM_IMA_VERSION_STR, table->md->ima.dm_version_str_len);  in dm_ima_measure_on_table_load()
231 	l += table->md->ima.dm_version_str_len;  in dm_ima_measure_on_table_load()
287 			memcpy(ima_buf + l, DM_IMA_VERSION_STR, table->md->ima.dm_version_str_len);  in dm_ima_measure_on_table_load()
288 			l += table->md->ima.dm_version_str_len;  in dm_ima_measure_on_table_load()
322 	 * Finalize the table hash, and store it in table->md->ima.inactive_table.hash,  in dm_ima_measure_on_table_load()
340 	if (table->md->ima.active_table.hash != table->md->ima.inactive_table.hash)  in dm_ima_measure_on_table_load()
341 		kfree(table->md->ima.inactive_table.hash);  in dm_ima_measure_on_table_load()
343 	table->md->ima.inactive_table.hash = digest_buf;  in dm_ima_measure_on_table_load()
344 	table->md->ima.inactive_table.hash_len = strlen(digest_buf);  in dm_ima_measure_on_table_load()
345 	table->md->ima.inactive_table.num_targets = num_targets;  in dm_ima_measure_on_table_load()
347 	if (table->md->ima.active_table.device_metadata !=  in dm_ima_measure_on_table_load()
348 	    table->md->ima.inactive_table.device_metadata)  in dm_ima_measure_on_table_load()
349 		kfree(table->md->ima.inactive_table.device_metadata);  in dm_ima_measure_on_table_load()
351 	table->md->ima.inactive_table.device_metadata = device_data_buf;  in dm_ima_measure_on_table_load()
352 	table->md->ima.inactive_table.device_metadata_len = device_data_buf_len;  in dm_ima_measure_on_table_load()
370 void dm_ima_measure_on_device_resume(struct mapped_device *md, bool swap)  in dm_ima_measure_on_device_resume()  argument
384 	r = dm_ima_alloc_and_copy_capacity_str(md, &capacity_str, noio);  in dm_ima_measure_on_device_resume()
388 	memcpy(device_table_data + l, DM_IMA_VERSION_STR, md->ima.dm_version_str_len);  in dm_ima_measure_on_device_resume()
389 	l += md->ima.dm_version_str_len;  in dm_ima_measure_on_device_resume()
392 		if (md->ima.active_table.hash != md->ima.inactive_table.hash)  in dm_ima_measure_on_device_resume()
393 			kfree(md->ima.active_table.hash);  in dm_ima_measure_on_device_resume()
395 		md->ima.active_table.hash = NULL;  in dm_ima_measure_on_device_resume()
396 		md->ima.active_table.hash_len = 0;  in dm_ima_measure_on_device_resume()
398 		if (md->ima.active_table.device_metadata !=  in dm_ima_measure_on_device_resume()
399 		    md->ima.inactive_table.device_metadata)  in dm_ima_measure_on_device_resume()
400 			kfree(md->ima.active_table.device_metadata);  in dm_ima_measure_on_device_resume()
402 		md->ima.active_table.device_metadata = NULL;  in dm_ima_measure_on_device_resume()
403 		md->ima.active_table.device_metadata_len = 0;  in dm_ima_measure_on_device_resume()
404 		md->ima.active_table.num_targets = 0;  in dm_ima_measure_on_device_resume()
406 		if (md->ima.inactive_table.hash) {  in dm_ima_measure_on_device_resume()
407 			md->ima.active_table.hash = md->ima.inactive_table.hash;  in dm_ima_measure_on_device_resume()
408 			md->ima.active_table.hash_len = md->ima.inactive_table.hash_len;  in dm_ima_measure_on_device_resume()
409 			md->ima.inactive_table.hash = NULL;  in dm_ima_measure_on_device_resume()
410 			md->ima.inactive_table.hash_len = 0;  in dm_ima_measure_on_device_resume()
413 		if (md->ima.inactive_table.device_metadata) {  in dm_ima_measure_on_device_resume()
414 			md->ima.active_table.device_metadata =  in dm_ima_measure_on_device_resume()
415 				md->ima.inactive_table.device_metadata;  in dm_ima_measure_on_device_resume()
416 			md->ima.active_table.device_metadata_len =  in dm_ima_measure_on_device_resume()
417 				md->ima.inactive_table.device_metadata_len;  in dm_ima_measure_on_device_resume()
418 			md->ima.active_table.num_targets = md->ima.inactive_table.num_targets;  in dm_ima_measure_on_device_resume()
419 			md->ima.inactive_table.device_metadata = NULL;  in dm_ima_measure_on_device_resume()
420 			md->ima.inactive_table.device_metadata_len = 0;  in dm_ima_measure_on_device_resume()
421 			md->ima.inactive_table.num_targets = 0;  in dm_ima_measure_on_device_resume()
425 	if (md->ima.active_table.device_metadata) {  in dm_ima_measure_on_device_resume()
426 		memcpy(device_table_data + l, md->ima.active_table.device_metadata,  in dm_ima_measure_on_device_resume()
427 		       md->ima.active_table.device_metadata_len);  in dm_ima_measure_on_device_resume()
428 		l += md->ima.active_table.device_metadata_len;  in dm_ima_measure_on_device_resume()
433 	if (md->ima.active_table.hash) {  in dm_ima_measure_on_device_resume()
437 		memcpy(device_table_data + l, md->ima.active_table.hash,  in dm_ima_measure_on_device_resume()
438 		       md->ima.active_table.hash_len);  in dm_ima_measure_on_device_resume()
439 		l += md->ima.active_table.hash_len;  in dm_ima_measure_on_device_resume()
448 		r = dm_ima_alloc_and_copy_name_uuid(md, &dev_name, &dev_uuid, noio);  in dm_ima_measure_on_device_resume()
475 void dm_ima_measure_on_device_remove(struct mapped_device *md, bool remove_all)  in dm_ima_measure_on_device_remove()  argument
498 	r = dm_ima_alloc_and_copy_capacity_str(md, &capacity_str, noio);  in dm_ima_measure_on_device_remove()
504 	memcpy(device_table_data + l, DM_IMA_VERSION_STR, md->ima.dm_version_str_len);  in dm_ima_measure_on_device_remove()
505 	l += md->ima.dm_version_str_len;  in dm_ima_measure_on_device_remove()
507 	if (md->ima.active_table.device_metadata) {  in dm_ima_measure_on_device_remove()
511 		memcpy(device_table_data + l, md->ima.active_table.device_metadata,  in dm_ima_measure_on_device_remove()
512 		       md->ima.active_table.device_metadata_len);  in dm_ima_measure_on_device_remove()
513 		l += md->ima.active_table.device_metadata_len;  in dm_ima_measure_on_device_remove()
518 	if (md->ima.inactive_table.device_metadata) {  in dm_ima_measure_on_device_remove()
522 		memcpy(device_table_data + l, md->ima.inactive_table.device_metadata,  in dm_ima_measure_on_device_remove()
523 		       md->ima.inactive_table.device_metadata_len);  in dm_ima_measure_on_device_remove()
524 		l += md->ima.inactive_table.device_metadata_len;  in dm_ima_measure_on_device_remove()
529 	if (md->ima.active_table.hash) {  in dm_ima_measure_on_device_remove()
533 		memcpy(device_table_data + l, md->ima.active_table.hash,  in dm_ima_measure_on_device_remove()
534 			   md->ima.active_table.hash_len);  in dm_ima_measure_on_device_remove()
535 		l += md->ima.active_table.hash_len;  in dm_ima_measure_on_device_remove()
543 	if (md->ima.inactive_table.hash) {  in dm_ima_measure_on_device_remove()
547 		memcpy(device_table_data + l, md->ima.inactive_table.hash,  in dm_ima_measure_on_device_remove()
548 		       md->ima.inactive_table.hash_len);  in dm_ima_measure_on_device_remove()
549 		l += md->ima.inactive_table.hash_len;  in dm_ima_measure_on_device_remove()
562 		if (dm_ima_alloc_and_copy_name_uuid(md, &dev_name, &dev_uuid, noio))  in dm_ima_measure_on_device_remove()
586 	kfree(md->ima.active_table.device_metadata);  in dm_ima_measure_on_device_remove()
588 	if (md->ima.active_table.device_metadata !=  in dm_ima_measure_on_device_remove()
589 	    md->ima.inactive_table.device_metadata)  in dm_ima_measure_on_device_remove()
590 		kfree(md->ima.inactive_table.device_metadata);  in dm_ima_measure_on_device_remove()
592 	kfree(md->ima.active_table.hash);  in dm_ima_measure_on_device_remove()
594 	if (md->ima.active_table.hash != md->ima.inactive_table.hash)  in dm_ima_measure_on_device_remove()
595 		kfree(md->ima.inactive_table.hash);  in dm_ima_measure_on_device_remove()
597 	dm_ima_reset_data(md);  in dm_ima_measure_on_device_remove()
606 void dm_ima_measure_on_table_clear(struct mapped_device *md, bool new_map)  in dm_ima_measure_on_table_clear()  argument
620 	r = dm_ima_alloc_and_copy_capacity_str(md, &capacity_str, noio);  in dm_ima_measure_on_table_clear()
624 	memcpy(device_table_data + l, DM_IMA_VERSION_STR, md->ima.dm_version_str_len);  in dm_ima_measure_on_table_clear()
625 	l += md->ima.dm_version_str_len;  in dm_ima_measure_on_table_clear()
627 	if (md->ima.inactive_table.device_metadata_len &&  in dm_ima_measure_on_table_clear()
628 	    md->ima.inactive_table.hash_len) {  in dm_ima_measure_on_table_clear()
629 		memcpy(device_table_data + l, md->ima.inactive_table.device_metadata,  in dm_ima_measure_on_table_clear()
630 		       md->ima.inactive_table.device_metadata_len);  in dm_ima_measure_on_table_clear()
631 		l += md->ima.inactive_table.device_metadata_len;  in dm_ima_measure_on_table_clear()
636 		memcpy(device_table_data + l, md->ima.inactive_table.hash,  in dm_ima_measure_on_table_clear()
637 			   md->ima.inactive_table.hash_len);  in dm_ima_measure_on_table_clear()
639 		l += md->ima.inactive_table.hash_len;  in dm_ima_measure_on_table_clear()
648 		if (dm_ima_alloc_and_copy_name_uuid(md, &dev_name, &dev_uuid, noio))  in dm_ima_measure_on_table_clear()
664 		if (md->ima.inactive_table.hash &&  in dm_ima_measure_on_table_clear()
665 		    md->ima.inactive_table.hash != md->ima.active_table.hash)  in dm_ima_measure_on_table_clear()
666 			kfree(md->ima.inactive_table.hash);  in dm_ima_measure_on_table_clear()
668 		md->ima.inactive_table.hash = NULL;  in dm_ima_measure_on_table_clear()
669 		md->ima.inactive_table.hash_len = 0;  in dm_ima_measure_on_table_clear()
671 		if (md->ima.inactive_table.device_metadata &&  in dm_ima_measure_on_table_clear()
672 		    md->ima.inactive_table.device_metadata != md->ima.active_table.device_metadata)  in dm_ima_measure_on_table_clear()
673 			kfree(md->ima.inactive_table.device_metadata);  in dm_ima_measure_on_table_clear()
675 		md->ima.inactive_table.device_metadata = NULL;  in dm_ima_measure_on_table_clear()
676 		md->ima.inactive_table.device_metadata_len = 0;  in dm_ima_measure_on_table_clear()
677 		md->ima.inactive_table.num_targets = 0;  in dm_ima_measure_on_table_clear()
679 		if (md->ima.active_table.hash) {  in dm_ima_measure_on_table_clear()
680 			md->ima.inactive_table.hash = md->ima.active_table.hash;  in dm_ima_measure_on_table_clear()
681 			md->ima.inactive_table.hash_len = md->ima.active_table.hash_len;  in dm_ima_measure_on_table_clear()
684 		if (md->ima.active_table.device_metadata) {  in dm_ima_measure_on_table_clear()
685 			md->ima.inactive_table.device_metadata =  in dm_ima_measure_on_table_clear()
686 				md->ima.active_table.device_metadata;  in dm_ima_measure_on_table_clear()
687 			md->ima.inactive_table.device_metadata_len =  in dm_ima_measure_on_table_clear()
688 				md->ima.active_table.device_metadata_len;  in dm_ima_measure_on_table_clear()
689 			md->ima.inactive_table.num_targets =  in dm_ima_measure_on_table_clear()
690 				md->ima.active_table.num_targets;  in dm_ima_measure_on_table_clear()
705 void dm_ima_measure_on_device_rename(struct mapped_device *md)  in dm_ima_measure_on_device_rename()  argument
712 	if (dm_ima_alloc_and_copy_device_data(md, &new_device_data,  in dm_ima_measure_on_device_rename()
713 					      md->ima.active_table.num_targets, noio))  in dm_ima_measure_on_device_rename()
716 	if (dm_ima_alloc_and_copy_name_uuid(md, &new_dev_name, &new_dev_uuid, noio))  in dm_ima_measure_on_device_rename()
723 	r = dm_ima_alloc_and_copy_capacity_str(md, &capacity_str, noio);  in dm_ima_measure_on_device_rename()
727 	old_device_data = md->ima.active_table.device_metadata;  in dm_ima_measure_on_device_rename()
729 	md->ima.active_table.device_metadata = new_device_data;  in dm_ima_measure_on_device_rename()
730 	md->ima.active_table.device_metadata_len = strlen(new_device_data);  in dm_ima_measure_on_device_rename()