security/smack/smackfs.c

429  * @count: bytes sent
445 					size_t count, loff_t *ppos,
467 		if (count < SMK_OLOADLEN || count > SMK_LOADLEN)
470 		if (count >= PAGE_SIZE) {
471 			count = PAGE_SIZE - 1;
476 	data = memdup_user_nul(buf, count);
485 		while (count > 0 && (data[count - 1] != '\n'))
486 			--count;
487 		if (count == 0) {
493 	data[count] = '\0';
495 	while (cnt < count) {
500 			cnt = count;
654  * @count: bytes sent
659 			      size_t count, loff_t *ppos)
669 	return smk_write_rules_list(file, buf, count, ppos, NULL, NULL,
823  * @count: bytes sent
831 				size_t count, loff_t *ppos, int format)
856 	    (count < SMK_CIPSOMIN || count > SMK_CIPSOMAX))
858 	if (count > PAGE_SIZE)
861 	data = memdup_user_nul(buf, count);
883 	if (rule > data + count) {
893 	if (rule > data + count) {
903 	    count != (SMK_CIPSOMIN + catlen * SMK_DIGITLEN))
910 		if (rule > data + count) {
939 		rc = count;
956  * @count: bytes sent
963 			       size_t count, loff_t *ppos)
965 	return smk_set_cipso(file, buf, count, ppos, SMK_FIXED24_FMT);
1030  * @count: bytes sent
1037 			      size_t count, loff_t *ppos)
1039 	return smk_set_cipso(file, buf, count, ppos, SMK_LONG_FMT);
1149  * @count: bytes sent
1156 				size_t count, loff_t *ppos)
1185 	if (count < SMK_NETLBLADDRMIN || count > PAGE_SIZE - 1)
1188 	data = memdup_user_nul(buf, count);
1192 	smack = kzalloc(count + 1, GFP_KERNEL);
1294 		rc = count;
1411  * @count: bytes sent
1418 				size_t count, loff_t *ppos)
1444 	if (count < SMK_NETLBLADDRMIN || count > PAGE_SIZE - 1)
1447 	data = memdup_user_nul(buf, count);
1451 	smack = kzalloc(count + 1, GFP_KERNEL);
1551 		rc = count;
1576  * @count: maximum to send along
1582 			    size_t count, loff_t *ppos)
1591 	rc = simple_read_from_buffer(buf, count, ppos, temp, strlen(temp));
1600  * @count: bytes sent
1606 			     size_t count, loff_t *ppos)
1614 	if (count >= sizeof(temp) || count == 0)
1617 	if (copy_from_user(temp, buf, count) != 0)
1620 	temp[count] = '\0';
1629 	return count;
1642  * @count: maximum to send along
1648 			       size_t count, loff_t *ppos)
1657 	rc = simple_read_from_buffer(buf, count, ppos, temp, strlen(temp));
1666  * @count: bytes sent
1672 				size_t count, loff_t *ppos)
1681 	if (count >= sizeof(temp) || count == 0)
1684 	if (copy_from_user(temp, buf, count) != 0)
1687 	temp[count] = '\0';
1707 	return count;
1720  * @count: maximum to send along
1726 			       size_t count, loff_t *ppos)
1735 	rc = simple_read_from_buffer(buf, count, ppos, temp, strlen(temp));
1744  * @count: bytes sent
1750 				size_t count, loff_t *ppos)
1759 	if (count >= sizeof(temp) || count == 0)
1762 	if (copy_from_user(temp, buf, count) != 0)
1765 	temp[count] = '\0';
1785 	return count;
1835  * @count: bytes sent
1841 				 size_t count, loff_t *ppos)
1846 	int rc = count;
1852 	if (count == 0 || count > PAGE_SIZE)
1855 	data = memdup_user_nul(buf, count);
1859 	skp = smk_import_entry(data, count);
2011  * @count: bytes sent
2017 				 size_t count, loff_t *ppos)
2026 	if (count > PAGE_SIZE)
2029 	data = memdup_user_nul(buf, count);
2044 	 * The invalid label must be first to count as clearing attempt.
2050 		rc = count;
2101  * @count: bytes sent
2107 					size_t count, loff_t *ppos)
2111 	int rc = count;
2116 	if (count > PAGE_SIZE)
2119 	data = memdup_user_nul(buf, count);
2132 	skp = smk_import_entry(data, count);
2158  * @count: maximum to send along
2164 				size_t count, loff_t *ppos)
2173 	rc = simple_read_from_buffer(buf, count, ppos, temp, strlen(temp));
2181  * @count: bytes sent
2187 				size_t count, loff_t *ppos)
2195 	if (count >= sizeof(temp) || count == 0)
2198 	if (copy_from_user(temp, buf, count) != 0)
2201 	temp[count] = '\0';
2208 	return count;
2272  * @count: bytes sent
2277 			      size_t count, loff_t *ppos)
2281 	return smk_write_rules_list(file, buf, count, ppos, &tsp->smk_rules,
2297  * @count: bytes sent
2302 				size_t count, loff_t *ppos, int format)
2308 	data = simple_transaction_get(file, buf, count);
2313 		if (count < SMK_LOADLEN)
2339 	return count;
2346  * @count: bytes sent
2350 				size_t count, loff_t *ppos)
2352 	return smk_user_access(file, buf, count, ppos, SMK_FIXED24_FMT);
2403  * @count: bytes sent
2408 				size_t count, loff_t *ppos)
2416 	return smk_write_rules_list(file, buf, count, ppos, NULL, NULL,
2480  * @count: bytes sent
2485 			      size_t count, loff_t *ppos)
2489 	return smk_write_rules_list(file, buf, count, ppos, &tsp->smk_rules,
2505  * @count: bytes sent
2509 					size_t count, loff_t *ppos)
2511 	return smk_user_access(file, buf, count, ppos, SMK_LONG_FMT);
2525  * @count: bytes sent
2529 				size_t count, loff_t *ppos)
2537 	int rc = count;
2545 	if (count == 0 || count > SMK_LONGLABEL)
2548 	data = memdup_user(buf, count);
2552 	cp = smk_parse_smack(data, count);
2600  * @count: bytes sent
2604 				size_t count, loff_t *ppos)
2612 	return smk_write_rules_list(file, buf, count, ppos, NULL, NULL,
2660  * @count: bytes sent
2666 				size_t count, loff_t *ppos)
2670 	int rc = count;
2676 	if (count == 0 || count > PAGE_SIZE)
2679 	data = memdup_user_nul(buf, count);
2683 	skp = smk_import_entry(data, count);
2753  * @count: bytes sent
2758 				size_t count, loff_t *ppos)
2776 	if (count == 0 || count > PAGE_SIZE)
2779 	data = memdup_user_nul(buf, count);
2799 		return count;
2818  * @count: maximum to send along
2824 			       size_t count, loff_t *ppos)
2833 	rc = simple_read_from_buffer(buf, count, ppos, temp, strlen(temp));
2841  * @count: bytes sent
2845 				size_t count, loff_t *ppos)
2853 	if (*ppos != 0 || count >= sizeof(temp) || count == 0)
2856 	if (copy_from_user(temp, buf, count) != 0)
2859 	temp[count] = '\0';
2867 	return count;