Merge branch 'for-linus' of git://git.infradead.org/users/eparis/selinux into for-linus

#include <linux/audit.h>

#include <linux/uaccess.h>

#include <linux/kobject.h>

#include <linux/ctype.h>

/* selinuxfs pseudo filesystem for exporting the security policy API.

   Based on the proc code and the fs/nfsd/nfsctl.c code. */

	return length;

}

static inline int hexcode_to_int(int code) {

	if (code == '\0' || !isxdigit(code))

		return -1;

	if (isdigit(code))

		return code - '0';

	return tolower(code) - 'a' + 10;

}

static ssize_t sel_write_create(struct file *file, char *buf, size_t size)

{

	char *scon = NULL, *tcon = NULL;

	nargs = sscanf(buf, "%s %s %hu %s", scon, tcon, &tclass, namebuf);

	if (nargs < 3 || nargs > 4)

		goto out;

	if (nargs == 4)

	if (nargs == 4) {

		/*

		 * If and when the name of new object to be queried contains

		 * either whitespace or multibyte characters, they shall be

		 * encoded based on the percentage-encoding rule.

		 * If not encoded, the sscanf logic picks up only left-half

		 * of the supplied name; splitted by a whitespace unexpectedly.

		 */

		char   *r, *w;

		int     c1, c2;

		r = w = namebuf;

		do {

			c1 = *r++;

			if (c1 == '+')

				c1 = ' ';

			else if (c1 == '%') {

				if ((c1 = hexcode_to_int(*r++)) < 0)

					goto out;

				if ((c2 = hexcode_to_int(*r++)) < 0)

					goto out;

				c1 = (c1 << 4) | c2;

			}

			*w++ = c1;

		} while (c1 != '\0');

		objname = namebuf;

	}

	length = security_context_to_sid(scon, strlen(scon) + 1, &ssid);

	if (length)

	__le32 buf[1];

	int rc;

	if (p->policyvers < POLICYDB_VERSION_FILENAME_TRANS)

		return 0;

	nel = 0;

	rc = hashtab_map(p->filename_trans, hashtab_cnt, &nel);

	if (rc)