[net-next-2.6.git] / security / tomoyo / tomoyo.c

/*
 * security/tomoyo/tomoyo.c
 *
 * LSM hooks for TOMOYO Linux.
 *
 * Copyright (C) 2005-2009  NTT DATA CORPORATION
 *
 * Version: 2.2.0   2009/04/01
 *
 */

#include <linux/security.h>
#include "common.h"
#include "tomoyo.h"
#include "realpath.h"

static int tomoyo_cred_alloc_blank(struct cred *new, gfp_t gfp)
{
	new->security = NULL;
	return 0;
}

static int tomoyo_cred_prepare(struct cred *new, const struct cred *old,
			       gfp_t gfp)
{
	/*
	 * Since "struct tomoyo_domain_info *" is a sharable pointer,
	 * we don't need to duplicate.
	 */
	new->security = old->security;
	return 0;
}

static void tomoyo_cred_transfer(struct cred *new, const struct cred *old)
{
	/*
	 * Since "struct tomoyo_domain_info *" is a sharable pointer,
	 * we don't need to duplicate.
	 */
	new->security = old->security;
}

static int tomoyo_bprm_set_creds(struct linux_binprm *bprm)
{
	int rc;

	rc = cap_bprm_set_creds(bprm);
	if (rc)
		return rc;

	/*
	 * Do only if this function is called for the first time of an execve
	 * operation.
	 */
	if (bprm->cred_prepared)
		return 0;
	/*
	 * Load policy if /sbin/tomoyo-init exists and /sbin/init is requested
	 * for the first time.
	 */
	if (!tomoyo_policy_loaded)
		tomoyo_load_policy(bprm->filename);
	/*
	 * Tell tomoyo_bprm_check_security() is called for the first time of an
	 * execve operation.
	 */
	bprm->cred->security = NULL;
	return 0;
}

static int tomoyo_bprm_check_security(struct linux_binprm *bprm)
{
	struct tomoyo_domain_info *domain = bprm->cred->security;

	/*
	 * Execute permission is checked against pathname passed to do_execve()
	 * using current domain.
	 */
	if (!domain)
		return tomoyo_find_next_domain(bprm);
	/*
	 * Read permission is checked against interpreters using next domain.
	 * '1' is the result of open_to_namei_flags(O_RDONLY).
	 */
	return tomoyo_check_open_permission(domain, &bprm->file->f_path, 1);
}

#ifdef CONFIG_SYSCTL

static int tomoyo_prepend(char **buffer, int *buflen, const char *str)
{
	int namelen = strlen(str);

	if (*buflen < namelen)
		return -ENOMEM;
	*buflen -= namelen;
	*buffer -= namelen;
	memcpy(*buffer, str, namelen);
	return 0;
}

/**
 * tomoyo_sysctl_path - return the realpath of a ctl_table.
 * @table: pointer to "struct ctl_table".
 *
 * Returns realpath(3) of the @table on success.
 * Returns NULL on failure.
 *
 * This function uses tomoyo_alloc(), so the caller must call tomoyo_free()
 * if this function didn't return NULL.
 */
static char *tomoyo_sysctl_path(struct ctl_table *table)
{
	int buflen = TOMOYO_MAX_PATHNAME_LEN;
	char *buf = tomoyo_alloc(buflen);
	char *end = buf + buflen;
	int error = -ENOMEM;

	if (!buf)
		return NULL;

	*--end = '\0';
	buflen--;
	while (table) {
		char num[32];
		const char *sp = table->procname;

		if (!sp) {
			memset(num, 0, sizeof(num));
			snprintf(num, sizeof(num) - 1, "=%d=", table->ctl_name);
			sp = num;
		}
		if (tomoyo_prepend(&end, &buflen, sp) ||
		    tomoyo_prepend(&end, &buflen, "/"))
			goto out;
		table = table->parent;
	}
	if (tomoyo_prepend(&end, &buflen, "/proc/sys"))
		goto out;
	error = tomoyo_encode(buf, end - buf, end);
 out:
	if (!error)
		return buf;
	tomoyo_free(buf);
	return NULL;
}

static int tomoyo_sysctl(struct ctl_table *table, int op)
{
	int error;
	char *name;

	op &= MAY_READ | MAY_WRITE;
	if (!op)
		return 0;
	name = tomoyo_sysctl_path(table);
	if (!name)
		return -ENOMEM;
	error = tomoyo_check_file_perm(tomoyo_domain(), name, op);
	tomoyo_free(name);
	return error;
}
#endif

static int tomoyo_path_truncate(struct path *path, loff_t length,
				unsigned int time_attrs)
{
	return tomoyo_check_1path_perm(tomoyo_domain(),
				       TOMOYO_TYPE_TRUNCATE_ACL,
				       path);
}

static int tomoyo_path_unlink(struct path *parent, struct dentry *dentry)
{
	struct path path = { parent->mnt, dentry };
	return tomoyo_check_1path_perm(tomoyo_domain(),
				       TOMOYO_TYPE_UNLINK_ACL,
				       &path);
}

static int tomoyo_path_mkdir(struct path *parent, struct dentry *dentry,
			     int mode)
{
	struct path path = { parent->mnt, dentry };
	return tomoyo_check_1path_perm(tomoyo_domain(),
				       TOMOYO_TYPE_MKDIR_ACL,
				       &path);
}

static int tomoyo_path_rmdir(struct path *parent, struct dentry *dentry)
{
	struct path path = { parent->mnt, dentry };
	return tomoyo_check_1path_perm(tomoyo_domain(),
				       TOMOYO_TYPE_RMDIR_ACL,
				       &path);
}

static int tomoyo_path_symlink(struct path *parent, struct dentry *dentry,
			       const char *old_name)
{
	struct path path = { parent->mnt, dentry };
	return tomoyo_check_1path_perm(tomoyo_domain(),
				       TOMOYO_TYPE_SYMLINK_ACL,
				       &path);
}

static int tomoyo_path_mknod(struct path *parent, struct dentry *dentry,
			     int mode, unsigned int dev)
{
	struct path path = { parent->mnt, dentry };
	int type = TOMOYO_TYPE_CREATE_ACL;

	switch (mode & S_IFMT) {
	case S_IFCHR:
		type = TOMOYO_TYPE_MKCHAR_ACL;
		break;
	case S_IFBLK:
		type = TOMOYO_TYPE_MKBLOCK_ACL;
		break;
	case S_IFIFO:
		type = TOMOYO_TYPE_MKFIFO_ACL;
		break;
	case S_IFSOCK:
		type = TOMOYO_TYPE_MKSOCK_ACL;
		break;
	}
	return tomoyo_check_1path_perm(tomoyo_domain(),
				       type, &path);
}

static int tomoyo_path_link(struct dentry *old_dentry, struct path *new_dir,
			    struct dentry *new_dentry)
{
	struct path path1 = { new_dir->mnt, old_dentry };
	struct path path2 = { new_dir->mnt, new_dentry };
	return tomoyo_check_2path_perm(tomoyo_domain(),
				       TOMOYO_TYPE_LINK_ACL,
				       &path1, &path2);
}

static int tomoyo_path_rename(struct path *old_parent,
			      struct dentry *old_dentry,
			      struct path *new_parent,
			      struct dentry *new_dentry)
{
	struct path path1 = { old_parent->mnt, old_dentry };
	struct path path2 = { new_parent->mnt, new_dentry };
	return tomoyo_check_2path_perm(tomoyo_domain(),
				       TOMOYO_TYPE_RENAME_ACL,
				       &path1, &path2);
}

static int tomoyo_file_fcntl(struct file *file, unsigned int cmd,
			     unsigned long arg)
{
	if (cmd == F_SETFL && ((arg ^ file->f_flags) & O_APPEND))
		return tomoyo_check_rewrite_permission(tomoyo_domain(), file);
	return 0;
}

static int tomoyo_dentry_open(struct file *f, const struct cred *cred)
{
	int flags = f->f_flags;

	if ((flags + 1) & O_ACCMODE)
		flags++;
	flags |= f->f_flags & (O_APPEND | O_TRUNC);
	/* Don't check read permission here if called from do_execve(). */
	if (current->in_execve)
		return 0;
	return tomoyo_check_open_permission(tomoyo_domain(), &f->f_path, flags);
}

static int tomoyo_file_ioctl(struct file *file, unsigned int cmd,
			     unsigned long arg)
{
	return tomoyo_check_1path_perm(tomoyo_domain(), TOMOYO_TYPE_IOCTL_ACL,
				       &file->f_path);
}

static int tomoyo_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
			     mode_t mode)
{
	struct path path = { mnt, dentry };
	return tomoyo_check_1path_perm(tomoyo_domain(), TOMOYO_TYPE_CHMOD_ACL,
				       &path);
}

static int tomoyo_path_chown(struct path *path, uid_t uid, gid_t gid)
{
	int error = 0;
	if (uid != (uid_t) -1)
		error = tomoyo_check_1path_perm(tomoyo_domain(),
						TOMOYO_TYPE_CHOWN_ACL, path);
	if (!error && gid != (gid_t) -1)
		error = tomoyo_check_1path_perm(tomoyo_domain(),
						TOMOYO_TYPE_CHGRP_ACL, path);
	return error;
}

static int tomoyo_path_chroot(struct path *path)
{
	return tomoyo_check_1path_perm(tomoyo_domain(), TOMOYO_TYPE_CHROOT_ACL,
				       path);
}

static int tomoyo_sb_mount(char *dev_name, struct path *path,
			   char *type, unsigned long flags, void *data)
{
	return tomoyo_check_1path_perm(tomoyo_domain(), TOMOYO_TYPE_MOUNT_ACL,
				       path);
}

static int tomoyo_sb_umount(struct vfsmount *mnt, int flags)
{
	struct path path = { mnt, mnt->mnt_root };
	return tomoyo_check_1path_perm(tomoyo_domain(), TOMOYO_TYPE_UMOUNT_ACL,
				       &path);
}

static int tomoyo_sb_pivotroot(struct path *old_path, struct path *new_path)
{
	return tomoyo_check_2path_perm(tomoyo_domain(),
				       TOMOYO_TYPE_PIVOT_ROOT_ACL,
				       new_path, old_path);
}

/*
 * tomoyo_security_ops is a "struct security_operations" which is used for
 * registering TOMOYO.
 */
static struct security_operations tomoyo_security_ops = {
	.name                = "tomoyo",
	.cred_alloc_blank    = tomoyo_cred_alloc_blank,
	.cred_prepare        = tomoyo_cred_prepare,
	.cred_transfer	     = tomoyo_cred_transfer,
	.bprm_set_creds      = tomoyo_bprm_set_creds,
	.bprm_check_security = tomoyo_bprm_check_security,
#ifdef CONFIG_SYSCTL
	.sysctl              = tomoyo_sysctl,
#endif
	.file_fcntl          = tomoyo_file_fcntl,
	.dentry_open         = tomoyo_dentry_open,
	.path_truncate       = tomoyo_path_truncate,
	.path_unlink         = tomoyo_path_unlink,
	.path_mkdir          = tomoyo_path_mkdir,
	.path_rmdir          = tomoyo_path_rmdir,
	.path_symlink        = tomoyo_path_symlink,
	.path_mknod          = tomoyo_path_mknod,
	.path_link           = tomoyo_path_link,
	.path_rename         = tomoyo_path_rename,
	.file_ioctl          = tomoyo_file_ioctl,
	.path_chmod          = tomoyo_path_chmod,
	.path_chown          = tomoyo_path_chown,
	.path_chroot         = tomoyo_path_chroot,
	.sb_mount            = tomoyo_sb_mount,
	.sb_umount           = tomoyo_sb_umount,
	.sb_pivotroot        = tomoyo_sb_pivotroot,
};

static int __init tomoyo_init(void)
{
	struct cred *cred = (struct cred *) current_cred();

	if (!security_module_enable(&tomoyo_security_ops))
		return 0;
	/* register ourselves with the security framework */
	if (register_security(&tomoyo_security_ops))
		panic("Failure registering TOMOYO Linux");
	printk(KERN_INFO "TOMOYO Linux initialized\n");
	cred->security = &tomoyo_kernel_domain;
	tomoyo_realpath_init();
	return 0;
}

security_initcall(tomoyo_init);
Commit	Line	Data
f7433243 KT	1	/*
	2	* security/tomoyo/tomoyo.c
	3	*
	4	* LSM hooks for TOMOYO Linux.
	5	*
	6	* Copyright (C) 2005-2009 NTT DATA CORPORATION
	7	*
39826a1e	8	* Version: 2.2.0 2009/04/01
f7433243 KT	9	*
	10	*/
	11
	12	#include <linux/security.h>
	13	#include "common.h"
	14	#include "tomoyo.h"
	15	#include "realpath.h"
	16
ee18d64c DH	17	static int tomoyo_cred_alloc_blank(struct cred *new, gfp_t gfp)
	18	{
	19	new->security = NULL;
	20	return 0;
	21	}
	22
f7433243 KT	23	static int tomoyo_cred_prepare(struct cred new, const struct cred old,
	24	gfp_t gfp)
	25	{
	26	/*
	27	* Since "struct tomoyo_domain_info *" is a sharable pointer,
	28	* we don't need to duplicate.
	29	*/
	30	new->security = old->security;
	31	return 0;
	32	}
	33
ee18d64c DH	34	static void tomoyo_cred_transfer(struct cred new, const struct cred old)
	35	{
	36	/*
	37	* Since "struct tomoyo_domain_info *" is a sharable pointer,
	38	* we don't need to duplicate.
	39	*/
	40	new->security = old->security;
	41	}
	42
f7433243 KT	43	static int tomoyo_bprm_set_creds(struct linux_binprm *bprm)
f7433243 KT	44	{
b1338d19 HRK	45	int rc;
	46
	47	rc = cap_bprm_set_creds(bprm);
	48	if (rc)
	49	return rc;
	50
f7433243 KT	51	/*
	52	* Do only if this function is called for the first time of an execve
	53	* operation.
	54	*/
	55	if (bprm->cred_prepared)
	56	return 0;
	57	/*
	58	* Load policy if /sbin/tomoyo-init exists and /sbin/init is requested
	59	* for the first time.
	60	*/
	61	if (!tomoyo_policy_loaded)
	62	tomoyo_load_policy(bprm->filename);
	63	/*
	64	* Tell tomoyo_bprm_check_security() is called for the first time of an
	65	* execve operation.
	66	*/
	67	bprm->cred->security = NULL;
	68	return 0;
	69	}
	70
	71	static int tomoyo_bprm_check_security(struct linux_binprm *bprm)
	72	{
	73	struct tomoyo_domain_info *domain = bprm->cred->security;
	74
	75	/*
	76	* Execute permission is checked against pathname passed to do_execve()
	77	* using current domain.
	78	*/
56f8c9bc TH	79	if (!domain)
56f8c9bc TH	80	return tomoyo_find_next_domain(bprm);
f7433243 KT	81	/*
	82	* Read permission is checked against interpreters using next domain.
	83	* '1' is the result of open_to_namei_flags(O_RDONLY).
	84	*/
	85	return tomoyo_check_open_permission(domain, &bprm->file->f_path, 1);
	86	}
	87
	88	#ifdef CONFIG_SYSCTL
	89
	90	static int tomoyo_prepend(char *buffer, int buflen, const char *str)
	91	{
	92	int namelen = strlen(str);
	93
	94	if (*buflen < namelen)
	95	return -ENOMEM;
	96	*buflen -= namelen;
	97	*buffer -= namelen;
	98	memcpy(*buffer, str, namelen);
	99	return 0;
	100	}
	101
	102	/**
	103	* tomoyo_sysctl_path - return the realpath of a ctl_table.
	104	* @table: pointer to "struct ctl_table".
	105	*
	106	* Returns realpath(3) of the @table on success.
	107	* Returns NULL on failure.
	108	*
	109	* This function uses tomoyo_alloc(), so the caller must call tomoyo_free()
	110	* if this function didn't return NULL.
	111	*/
	112	static char tomoyo_sysctl_path(struct ctl_table table)
	113	{
	114	int buflen = TOMOYO_MAX_PATHNAME_LEN;
	115	char *buf = tomoyo_alloc(buflen);
	116	char *end = buf + buflen;
	117	int error = -ENOMEM;
	118
	119	if (!buf)
	120	return NULL;
	121
	122	*--end = '\0';
	123	buflen--;
	124	while (table) {
35d50e60	125	char num[32];
f7433243 KT	126	const char *sp = table->procname;
	127
	128	if (!sp) {
35d50e60 TH	129	memset(num, 0, sizeof(num));
	130	snprintf(num, sizeof(num) - 1, "=%d=", table->ctl_name);
	131	sp = num;
f7433243 KT	132	}
	133	if (tomoyo_prepend(&end, &buflen, sp) \|\|
	134	tomoyo_prepend(&end, &buflen, "/"))
	135	goto out;
	136	table = table->parent;
	137	}
	138	if (tomoyo_prepend(&end, &buflen, "/proc/sys"))
	139	goto out;
	140	error = tomoyo_encode(buf, end - buf, end);
	141	out:
	142	if (!error)
	143	return buf;
	144	tomoyo_free(buf);
	145	return NULL;
	146	}
	147
	148	static int tomoyo_sysctl(struct ctl_table *table, int op)
	149	{
	150	int error;
	151	char *name;
	152
	153	op &= MAY_READ \| MAY_WRITE;
	154	if (!op)
	155	return 0;
	156	name = tomoyo_sysctl_path(table);
	157	if (!name)
	158	return -ENOMEM;
	159	error = tomoyo_check_file_perm(tomoyo_domain(), name, op);
	160	tomoyo_free(name);
	161	return error;
	162	}
	163	#endif
	164
	165	static int tomoyo_path_truncate(struct path *path, loff_t length,
	166	unsigned int time_attrs)
	167	{
	168	return tomoyo_check_1path_perm(tomoyo_domain(),
	169	TOMOYO_TYPE_TRUNCATE_ACL,
	170	path);
	171	}
	172
	173	static int tomoyo_path_unlink(struct path parent, struct dentry dentry)
	174	{
	175	struct path path = { parent->mnt, dentry };
	176	return tomoyo_check_1path_perm(tomoyo_domain(),
	177	TOMOYO_TYPE_UNLINK_ACL,
	178	&path);
	179	}
	180
	181	static int tomoyo_path_mkdir(struct path parent, struct dentry dentry,
	182	int mode)
	183	{
	184	struct path path = { parent->mnt, dentry };
	185	return tomoyo_check_1path_perm(tomoyo_domain(),
	186	TOMOYO_TYPE_MKDIR_ACL,
	187	&path);
	188	}
	189
	190	static int tomoyo_path_rmdir(struct path parent, struct dentry dentry)
	191	{
	192	struct path path = { parent->mnt, dentry };
	193	return tomoyo_check_1path_perm(tomoyo_domain(),
	194	TOMOYO_TYPE_RMDIR_ACL,
	195	&path);
196	}
197
198	static int tomoyo_path_symlink(struct path parent, struct dentry dentry,
199	const char *old_name)
200	{
201	struct path path = { parent->mnt, dentry };
202	return tomoyo_check_1path_perm(tomoyo_domain(),
203	TOMOYO_TYPE_SYMLINK_ACL,
204	&path);
205	}
206
207	static int tomoyo_path_mknod(struct path parent, struct dentry dentry,
208	int mode, unsigned int dev)
209	{
210	struct path path = { parent->mnt, dentry };
211	int type = TOMOYO_TYPE_CREATE_ACL;
212
213	switch (mode & S_IFMT) {
214	case S_IFCHR:
215	type = TOMOYO_TYPE_MKCHAR_ACL;
216	break;
217	case S_IFBLK:
218	type = TOMOYO_TYPE_MKBLOCK_ACL;
219	break;
220	case S_IFIFO:
221	type = TOMOYO_TYPE_MKFIFO_ACL;
222	break;
223	case S_IFSOCK:
224	type = TOMOYO_TYPE_MKSOCK_ACL;
225	break;
226	}
227	return tomoyo_check_1path_perm(tomoyo_domain(),
228	type, &path);
229	}
230
231	static int tomoyo_path_link(struct dentry old_dentry, struct path new_dir,
232	struct dentry *new_dentry)
233	{
234	struct path path1 = { new_dir->mnt, old_dentry };
235	struct path path2 = { new_dir->mnt, new_dentry };
236	return tomoyo_check_2path_perm(tomoyo_domain(),
237	TOMOYO_TYPE_LINK_ACL,
238	&path1, &path2);
239	}
240
241	static int tomoyo_path_rename(struct path *old_parent,
242	struct dentry *old_dentry,
243	struct path *new_parent,
244	struct dentry *new_dentry)
245	{
246	struct path path1 = { old_parent->mnt, old_dentry };
247	struct path path2 = { new_parent->mnt, new_dentry };
248	return tomoyo_check_2path_perm(tomoyo_domain(),
249	TOMOYO_TYPE_RENAME_ACL,
250	&path1, &path2);
251	}
252
253	static int tomoyo_file_fcntl(struct file *file, unsigned int cmd,
254	unsigned long arg)
255	{
256	if (cmd == F_SETFL && ((arg ^ file->f_flags) & O_APPEND))
257	return tomoyo_check_rewrite_permission(tomoyo_domain(), file);
258	return 0;
259	}
260
261	static int tomoyo_dentry_open(struct file f, const struct cred cred)
262	{
263	int flags = f->f_flags;
264
265	if ((flags + 1) & O_ACCMODE)
266	flags++;
267	flags \|= f->f_flags & (O_APPEND \| O_TRUNC);
268	/* Don't check read permission here if called from do_execve(). */
269	if (current->in_execve)
270	return 0;
271	return tomoyo_check_open_permission(tomoyo_domain(), &f->f_path, flags);
272	}
273
937bf613 TH	274	static int tomoyo_file_ioctl(struct file *file, unsigned int cmd,
	275	unsigned long arg)
	276	{
	277	return tomoyo_check_1path_perm(tomoyo_domain(), TOMOYO_TYPE_IOCTL_ACL,
	278	&file->f_path);
	279	}
	280
	281	static int tomoyo_path_chmod(struct dentry dentry, struct vfsmount mnt,
	282	mode_t mode)
	283	{
	284	struct path path = { mnt, dentry };
	285	return tomoyo_check_1path_perm(tomoyo_domain(), TOMOYO_TYPE_CHMOD_ACL,
	286	&path);
	287	}
	288
	289	static int tomoyo_path_chown(struct path *path, uid_t uid, gid_t gid)
	290	{
	291	int error = 0;
	292	if (uid != (uid_t) -1)
	293	error = tomoyo_check_1path_perm(tomoyo_domain(),
	294	TOMOYO_TYPE_CHOWN_ACL, path);
	295	if (!error && gid != (gid_t) -1)
	296	error = tomoyo_check_1path_perm(tomoyo_domain(),
	297	TOMOYO_TYPE_CHGRP_ACL, path);
	298	return error;
	299	}
	300
	301	static int tomoyo_path_chroot(struct path *path)
	302	{
	303	return tomoyo_check_1path_perm(tomoyo_domain(), TOMOYO_TYPE_CHROOT_ACL,
	304	path);
	305	}
	306
	307	static int tomoyo_sb_mount(char dev_name, struct path path,
	308	char type, unsigned long flags, void data)
	309	{
	310	return tomoyo_check_1path_perm(tomoyo_domain(), TOMOYO_TYPE_MOUNT_ACL,
	311	path);
	312	}
	313
	314	static int tomoyo_sb_umount(struct vfsmount *mnt, int flags)
	315	{
	316	struct path path = { mnt, mnt->mnt_root };
	317	return tomoyo_check_1path_perm(tomoyo_domain(), TOMOYO_TYPE_UMOUNT_ACL,
	318	&path);
	319	}
	320
	321	static int tomoyo_sb_pivotroot(struct path old_path, struct path new_path)
	322	{
	323	return tomoyo_check_2path_perm(tomoyo_domain(),
	324	TOMOYO_TYPE_PIVOT_ROOT_ACL,
	325	new_path, old_path);
	326	}
	327
c3fa109a TH	328	/*
	329	* tomoyo_security_ops is a "struct security_operations" which is used for
	330	* registering TOMOYO.
	331	*/
f7433243 KT	332	static struct security_operations tomoyo_security_ops = {
f7433243 KT	333	.name = "tomoyo",
ee18d64c	334	.cred_alloc_blank = tomoyo_cred_alloc_blank,
f7433243	335	.cred_prepare = tomoyo_cred_prepare,
ee18d64c	336	.cred_transfer = tomoyo_cred_transfer,
f7433243 KT	337	.bprm_set_creds = tomoyo_bprm_set_creds,
	338	.bprm_check_security = tomoyo_bprm_check_security,
	339	#ifdef CONFIG_SYSCTL
	340	.sysctl = tomoyo_sysctl,
	341	#endif
	342	.file_fcntl = tomoyo_file_fcntl,
	343	.dentry_open = tomoyo_dentry_open,
	344	.path_truncate = tomoyo_path_truncate,
	345	.path_unlink = tomoyo_path_unlink,
	346	.path_mkdir = tomoyo_path_mkdir,
	347	.path_rmdir = tomoyo_path_rmdir,
	348	.path_symlink = tomoyo_path_symlink,
	349	.path_mknod = tomoyo_path_mknod,
	350	.path_link = tomoyo_path_link,
	351	.path_rename = tomoyo_path_rename,
937bf613 TH	352	.file_ioctl = tomoyo_file_ioctl,
	353	.path_chmod = tomoyo_path_chmod,
	354	.path_chown = tomoyo_path_chown,
	355	.path_chroot = tomoyo_path_chroot,
	356	.sb_mount = tomoyo_sb_mount,
	357	.sb_umount = tomoyo_sb_umount,
	358	.sb_pivotroot = tomoyo_sb_pivotroot,
f7433243 KT	359	};
	360
	361	static int __init tomoyo_init(void)
	362	{
	363	struct cred cred = (struct cred ) current_cred();
	364
	365	if (!security_module_enable(&tomoyo_security_ops))
	366	return 0;
	367	/* register ourselves with the security framework */
	368	if (register_security(&tomoyo_security_ops))
	369	panic("Failure registering TOMOYO Linux");
	370	printk(KERN_INFO "TOMOYO Linux initialized\n");
	371	cred->security = &tomoyo_kernel_domain;
1581e7dd	372	tomoyo_realpath_init();
f7433243 KT	373	return 0;
	374	}
	375
	376	security_initcall(tomoyo_init);