TOMOYO: Merge headers.

Gather structures and constants scattered around security/tomoyo/ directory.
This is for preparation for adding garbage collector since garbage collector
needs to know structures and constants which TOMOYO uses.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>

security/tomoyo/common.c

@@ -13,8 +13,6 @@
 #include <linux/security.h>
 #include <linux/hardirq.h>
 #include "common.h"
-#include "realpath.h"
-#include "tomoyo.h"
 
 /* Lock for protecting policy. */
 DEFINE_MUTEX(tomoyo_policy_lock);
@@ -1039,27 +1037,6 @@ static int tomoyo_read_profile(struct tomoyo_io_buffer *head)
 	return 0;
 }
 
-/*
- * tomoyo_policy_manager_entry is a structure which is used for holding list of
- * domainnames or programs which are permitted to modify configuration via
- * /sys/kernel/security/tomoyo/ interface.
- * It has following fields.
- *
- *  (1) "list" which is linked to tomoyo_policy_manager_list .
- *  (2) "manager" is a domainname or a program's pathname.
- *  (3) "is_domain" is a bool which is true if "manager" is a domainname, false
- *      otherwise.
- *  (4) "is_deleted" is a bool which is true if marked as deleted, false
- *      otherwise.
- */
-struct tomoyo_policy_manager_entry {
-	struct list_head list;
-	/* A path to program or a domainname. */
-	const struct tomoyo_path_info *manager;
-	bool is_domain;  /* True if manager is a domainname. */
-	bool is_deleted; /* True if this entry is deleted. */
-};
-
 /*
  * tomoyo_policy_manager_list is used for holding list of domainnames or
  * programs which are permitted to modify configuration via

security/tomoyo/domain.c

@@ -10,8 +10,6 @@
  */
 
 #include "common.h"
-#include "tomoyo.h"
-#include "realpath.h"
 #include <linux/binfmts.h>
 
 /* Variables definitions.*/
@@ -59,76 +57,6 @@ struct tomoyo_domain_info tomoyo_kernel_domain;
  */
 LIST_HEAD(tomoyo_domain_list);
 
-/*
- * tomoyo_domain_initializer_entry is a structure which is used for holding
- * "initialize_domain" and "no_initialize_domain" entries.
- * It has following fields.
- *
- *  (1) "list" which is linked to tomoyo_domain_initializer_list .
- *  (2) "domainname" which is "a domainname" or "the last component of a
- *      domainname". This field is NULL if "from" clause is not specified.
- *  (3) "program" which is a program's pathname.
- *  (4) "is_deleted" is a bool which is true if marked as deleted, false
- *      otherwise.
- *  (5) "is_not" is a bool which is true if "no_initialize_domain", false
- *      otherwise.
- *  (6) "is_last_name" is a bool which is true if "domainname" is "the last
- *      component of a domainname", false otherwise.
- */
-struct tomoyo_domain_initializer_entry {
-	struct list_head list;
-	const struct tomoyo_path_info *domainname;    /* This may be NULL */
-	const struct tomoyo_path_info *program;
-	bool is_deleted;
-	bool is_not;       /* True if this entry is "no_initialize_domain".  */
-	/* True if the domainname is tomoyo_get_last_name(). */
-	bool is_last_name;
-};
-
-/*
- * tomoyo_domain_keeper_entry is a structure which is used for holding
- * "keep_domain" and "no_keep_domain" entries.
- * It has following fields.
- *
- *  (1) "list" which is linked to tomoyo_domain_keeper_list .
- *  (2) "domainname" which is "a domainname" or "the last component of a
- *      domainname".
- *  (3) "program" which is a program's pathname.
- *      This field is NULL if "from" clause is not specified.
- *  (4) "is_deleted" is a bool which is true if marked as deleted, false
- *      otherwise.
- *  (5) "is_not" is a bool which is true if "no_initialize_domain", false
- *      otherwise.
- *  (6) "is_last_name" is a bool which is true if "domainname" is "the last
- *      component of a domainname", false otherwise.
- */
-struct tomoyo_domain_keeper_entry {
-	struct list_head list;
-	const struct tomoyo_path_info *domainname;
-	const struct tomoyo_path_info *program;       /* This may be NULL */
-	bool is_deleted;
-	bool is_not;       /* True if this entry is "no_keep_domain".        */
-	/* True if the domainname is tomoyo_get_last_name(). */
-	bool is_last_name;
-};
-
-/*
- * tomoyo_alias_entry is a structure which is used for holding "alias" entries.
- * It has following fields.
- *
- *  (1) "list" which is linked to tomoyo_alias_list .
- *  (2) "original_name" which is a dereferenced pathname.
- *  (3) "aliased_name" which is a symlink's pathname.
- *  (4) "is_deleted" is a bool which is true if marked as deleted, false
- *      otherwise.
- */
-struct tomoyo_alias_entry {
-	struct list_head list;
-	const struct tomoyo_path_info *original_name;
-	const struct tomoyo_path_info *aliased_name;
-	bool is_deleted;
-};
-
 /**
  * tomoyo_get_last_name - Get last component of a domainname.
  *

security/tomoyo/file.c

@@ -10,58 +10,6 @@
  */
 
 #include "common.h"
-#include "tomoyo.h"
-#include "realpath.h"
-
-/*
- * tomoyo_globally_readable_file_entry is a structure which is used for holding
- * "allow_read" entries.
- * It has following fields.
- *
- *  (1) "list" which is linked to tomoyo_globally_readable_list .
- *  (2) "filename" is a pathname which is allowed to open(O_RDONLY).
- *  (3) "is_deleted" is a bool which is true if marked as deleted, false
- *      otherwise.
- */
-struct tomoyo_globally_readable_file_entry {
-	struct list_head list;
-	const struct tomoyo_path_info *filename;
-	bool is_deleted;
-};
-
-/*
- * tomoyo_pattern_entry is a structure which is used for holding
- * "tomoyo_pattern_list" entries.
- * It has following fields.
- *
- *  (1) "list" which is linked to tomoyo_pattern_list .
- *  (2) "pattern" is a pathname pattern which is used for converting pathnames
- *      to pathname patterns during learning mode.
- *  (3) "is_deleted" is a bool which is true if marked as deleted, false
- *      otherwise.
- */
-struct tomoyo_pattern_entry {
-	struct list_head list;
-	const struct tomoyo_path_info *pattern;
-	bool is_deleted;
-};
-
-/*
- * tomoyo_no_rewrite_entry is a structure which is used for holding
- * "deny_rewrite" entries.
- * It has following fields.
- *
- *  (1) "list" which is linked to tomoyo_no_rewrite_list .
- *  (2) "pattern" is a pathname which is by default not permitted to modify
- *      already existing content.
- *  (3) "is_deleted" is a bool which is true if marked as deleted, false
- *      otherwise.
- */
-struct tomoyo_no_rewrite_entry {
-	struct list_head list;
-	const struct tomoyo_path_info *pattern;
-	bool is_deleted;
-};
 
 /* Keyword array for single path operations. */
 static const char *tomoyo_sp_keyword[TOMOYO_MAX_SINGLE_PATH_OPERATION] = {

security/tomoyo/realpath.c

@@ -15,9 +15,7 @@
 #include <linux/fs_struct.h>
 #include <linux/hash.h>
 #include <linux/magic.h>
-
 #include "common.h"
-#include "realpath.h"
 
 /**
  * tomoyo_encode: Convert binary string to ascii string.
@@ -245,14 +243,6 @@ static unsigned int tomoyo_allocated_memory_for_savename;
 /* Quota for holding string data in bytes. */
 static unsigned int tomoyo_quota_for_savename;
 
-/*
- * TOMOYO uses this hash only when appending a string into the string
- * table. Frequency of appending strings is very low. So we don't need
- * large (e.g. 64k) hash size. 256 will be sufficient.
- */
-#define TOMOYO_HASH_BITS  8
-#define TOMOYO_MAX_HASH (1u<<TOMOYO_HASH_BITS)
-
 /*
  * tomoyo_name_list is used for holding string data used by TOMOYO.
  * Since same string data is likely used for multiple times (e.g.

security/tomoyo/realpath.h

-/*
- * security/tomoyo/realpath.h
- *
- * Get the canonicalized absolute pathnames. The basis for TOMOYO.
- *
- * Copyright (C) 2005-2009  NTT DATA CORPORATION
- *
- * Version: 2.2.0   2009/04/01
- *
- */
-
-#ifndef _SECURITY_TOMOYO_REALPATH_H
-#define _SECURITY_TOMOYO_REALPATH_H
-
-struct path;
-struct tomoyo_path_info;
-struct tomoyo_io_buffer;
-
-/* Convert binary string to ascii string. */
-int tomoyo_encode(char *buffer, int buflen, const char *str);
-
-/* Returns realpath(3) of the given pathname but ignores chroot'ed root. */
-int tomoyo_realpath_from_path2(struct path *path, char *newname,
-			       int newname_len);
-
-/*
- * Returns realpath(3) of the given pathname but ignores chroot'ed root.
- * These functions use kzalloc(), so the caller must call kfree()
- * if these functions didn't return NULL.
- */
-char *tomoyo_realpath(const char *pathname);
-/*
- * Same with tomoyo_realpath() except that it doesn't follow the final symlink.
- */
-char *tomoyo_realpath_nofollow(const char *pathname);
-/* Same with tomoyo_realpath() except that the pathname is already solved. */
-char *tomoyo_realpath_from_path(struct path *path);
-
-/* Check memory quota. */
-bool tomoyo_memory_ok(void *ptr);
-
-/*
- * Keep the given name on the RAM.
- * The RAM is shared, so NEVER try to modify or kfree() the returned name.
- */
-const struct tomoyo_path_info *tomoyo_get_name(const char *name);
-
-/* Check for memory usage. */
-int tomoyo_read_memory_counter(struct tomoyo_io_buffer *head);
-
-/* Set memory quota. */
-int tomoyo_write_memory_quota(struct tomoyo_io_buffer *head);
-
-/* Initialize realpath related code. */
-void __init tomoyo_realpath_init(void);
-
-/*
- * tomoyo_name_entry is a structure which is used for linking
- * "struct tomoyo_path_info" into tomoyo_name_list .
- */
-struct tomoyo_name_entry {
-	struct list_head list;
-	atomic_t users;
-	struct tomoyo_path_info entry;
-};
-
-static inline void tomoyo_put_name(const struct tomoyo_path_info *name)
-{
-	if (name) {
-		struct tomoyo_name_entry *ptr =
-			container_of(name, struct tomoyo_name_entry, entry);
-		atomic_dec(&ptr->users);
-	}
-}
-
-#endif /* !defined(_SECURITY_TOMOYO_REALPATH_H) */

security/tomoyo/tomoyo.c

@@ -11,8 +11,6 @@
 
 #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)
 {

security/tomoyo/tomoyo.h

-/*
- * security/tomoyo/tomoyo.h
- *
- * Implementation of the Domain-Based Mandatory Access Control.
- *
- * Copyright (C) 2005-2009  NTT DATA CORPORATION
- *
- * Version: 2.2.0   2009/04/01
- *
- */
-
-#ifndef _SECURITY_TOMOYO_TOMOYO_H
-#define _SECURITY_TOMOYO_TOMOYO_H
-
-struct tomoyo_path_info;
-struct path;
-struct inode;
-struct linux_binprm;
-struct pt_regs;
-
-int tomoyo_check_exec_perm(struct tomoyo_domain_info *domain,
-			   const struct tomoyo_path_info *filename);
-int tomoyo_check_open_permission(struct tomoyo_domain_info *domain,
-				 struct path *path, const int flag);
-int tomoyo_check_1path_perm(struct tomoyo_domain_info *domain,
-			    const u8 operation, struct path *path);
-int tomoyo_check_2path_perm(struct tomoyo_domain_info *domain,
-			    const u8 operation, struct path *path1,
-			    struct path *path2);
-int tomoyo_check_rewrite_permission(struct tomoyo_domain_info *domain,
-				    struct file *filp);
-int tomoyo_find_next_domain(struct linux_binprm *bprm);
-
-/* Index numbers for Access Controls. */
-
-#define TOMOYO_TYPE_SINGLE_PATH_ACL                 0
-#define TOMOYO_TYPE_DOUBLE_PATH_ACL                 1
-
-/* Index numbers for File Controls. */
-
-/*
- * TYPE_READ_WRITE_ACL is special. TYPE_READ_WRITE_ACL is automatically set
- * if both TYPE_READ_ACL and TYPE_WRITE_ACL are set. Both TYPE_READ_ACL and
- * TYPE_WRITE_ACL are automatically set if TYPE_READ_WRITE_ACL is set.
- * TYPE_READ_WRITE_ACL is automatically cleared if either TYPE_READ_ACL or
- * TYPE_WRITE_ACL is cleared. Both TYPE_READ_ACL and TYPE_WRITE_ACL are
- * automatically cleared if TYPE_READ_WRITE_ACL is cleared.
- */
-
-#define TOMOYO_TYPE_READ_WRITE_ACL    0
-#define TOMOYO_TYPE_EXECUTE_ACL       1
-#define TOMOYO_TYPE_READ_ACL          2
-#define TOMOYO_TYPE_WRITE_ACL         3
-#define TOMOYO_TYPE_CREATE_ACL        4
-#define TOMOYO_TYPE_UNLINK_ACL        5
-#define TOMOYO_TYPE_MKDIR_ACL         6
-#define TOMOYO_TYPE_RMDIR_ACL         7
-#define TOMOYO_TYPE_MKFIFO_ACL        8
-#define TOMOYO_TYPE_MKSOCK_ACL        9
-#define TOMOYO_TYPE_MKBLOCK_ACL      10
-#define TOMOYO_TYPE_MKCHAR_ACL       11
-#define TOMOYO_TYPE_TRUNCATE_ACL     12
-#define TOMOYO_TYPE_SYMLINK_ACL      13
-#define TOMOYO_TYPE_REWRITE_ACL      14
-#define TOMOYO_TYPE_IOCTL_ACL        15
-#define TOMOYO_TYPE_CHMOD_ACL        16
-#define TOMOYO_TYPE_CHOWN_ACL        17
-#define TOMOYO_TYPE_CHGRP_ACL        18
-#define TOMOYO_TYPE_CHROOT_ACL       19
-#define TOMOYO_TYPE_MOUNT_ACL        20
-#define TOMOYO_TYPE_UMOUNT_ACL       21
-#define TOMOYO_MAX_SINGLE_PATH_OPERATION 22
-
-#define TOMOYO_TYPE_LINK_ACL         0
-#define TOMOYO_TYPE_RENAME_ACL       1
-#define TOMOYO_TYPE_PIVOT_ROOT_ACL   2
-#define TOMOYO_MAX_DOUBLE_PATH_OPERATION 3
-
-#define TOMOYO_DOMAINPOLICY          0
-#define TOMOYO_EXCEPTIONPOLICY       1
-#define TOMOYO_DOMAIN_STATUS         2
-#define TOMOYO_PROCESS_STATUS        3
-#define TOMOYO_MEMINFO               4
-#define TOMOYO_SELFDOMAIN            5
-#define TOMOYO_VERSION               6
-#define TOMOYO_PROFILE               7
-#define TOMOYO_MANAGER               8
-
-extern struct tomoyo_domain_info tomoyo_kernel_domain;
-
-static inline struct tomoyo_domain_info *tomoyo_domain(void)
-{
-	return current_cred()->security;
-}
-
-static inline struct tomoyo_domain_info *tomoyo_real_domain(struct task_struct
-							    *task)
-{
-	return task_cred_xxx(task, security);
-}
-
-#endif /* !defined(_SECURITY_TOMOYO_TOMOYO_H) */