security/tomoyo/tomoyo.h

   1 /*
   2  * security/tomoyo/tomoyo.h
   3  *
   4  * Implementation of the Domain-Based Mandatory Access Control.
   5  *
   6  * Copyright (C) 2005-2009  NTT DATA CORPORATION
   7  *
   8  * Version: 2.2.0   2009/04/01
   9  *
  10  */
  11
  12 #ifndef _SECURITY_TOMOYO_TOMOYO_H
  13 #define _SECURITY_TOMOYO_TOMOYO_H
  14
  15 struct tomoyo_path_info;
  16 struct path;
  17 struct inode;
  18 struct linux_binprm;
  19 struct pt_regs;
  20
  21 int tomoyo_check_file_perm(struct tomoyo_domain_info *domain,
  22                            const char *filename, const u8 perm);
  23 int tomoyo_check_exec_perm(struct tomoyo_domain_info *domain,
  24                            const struct tomoyo_path_info *filename);
  25 int tomoyo_check_open_permission(struct tomoyo_domain_info *domain,
  26                                  struct path *path, const int flag);
  27 int tomoyo_check_1path_perm(struct tomoyo_domain_info *domain,
  28                             const u8 operation, struct path *path);
  29 int tomoyo_check_2path_perm(struct tomoyo_domain_info *domain,
  30                             const u8 operation, struct path *path1,
  31                             struct path *path2);
  32 int tomoyo_check_rewrite_permission(struct tomoyo_domain_info *domain,
  33                                     struct file *filp);
  34 int tomoyo_find_next_domain(struct linux_binprm *bprm,
  35                             struct tomoyo_domain_info **next_domain);
  36
  37 /* Index numbers for Access Controls. */
  38
  39 #define TOMOYO_TYPE_SINGLE_PATH_ACL                 0
  40 #define TOMOYO_TYPE_DOUBLE_PATH_ACL                 1
  41
  42 /* Index numbers for File Controls. */
  43
  44 /*
  45  * TYPE_READ_WRITE_ACL is special. TYPE_READ_WRITE_ACL is automatically set
  46  * if both TYPE_READ_ACL and TYPE_WRITE_ACL are set. Both TYPE_READ_ACL and
  47  * TYPE_WRITE_ACL are automatically set if TYPE_READ_WRITE_ACL is set.
  48  * TYPE_READ_WRITE_ACL is automatically cleared if either TYPE_READ_ACL or
  49  * TYPE_WRITE_ACL is cleared. Both TYPE_READ_ACL and TYPE_WRITE_ACL are
  50  * automatically cleared if TYPE_READ_WRITE_ACL is cleared.
  51  */
  52
  53 #define TOMOYO_TYPE_READ_WRITE_ACL    0
  54 #define TOMOYO_TYPE_EXECUTE_ACL       1
  55 #define TOMOYO_TYPE_READ_ACL          2
  56 #define TOMOYO_TYPE_WRITE_ACL         3
  57 #define TOMOYO_TYPE_CREATE_ACL        4
  58 #define TOMOYO_TYPE_UNLINK_ACL        5
  59 #define TOMOYO_TYPE_MKDIR_ACL         6
  60 #define TOMOYO_TYPE_RMDIR_ACL         7
  61 #define TOMOYO_TYPE_MKFIFO_ACL        8
  62 #define TOMOYO_TYPE_MKSOCK_ACL        9
  63 #define TOMOYO_TYPE_MKBLOCK_ACL      10
  64 #define TOMOYO_TYPE_MKCHAR_ACL       11
  65 #define TOMOYO_TYPE_TRUNCATE_ACL     12
  66 #define TOMOYO_TYPE_SYMLINK_ACL      13
  67 #define TOMOYO_TYPE_REWRITE_ACL      14
  68 #define TOMOYO_MAX_SINGLE_PATH_OPERATION 15
  69
  70 #define TOMOYO_TYPE_LINK_ACL         0
  71 #define TOMOYO_TYPE_RENAME_ACL       1
  72 #define TOMOYO_MAX_DOUBLE_PATH_OPERATION 2
  73
  74 #define TOMOYO_DOMAINPOLICY          0
  75 #define TOMOYO_EXCEPTIONPOLICY       1
  76 #define TOMOYO_DOMAIN_STATUS         2
  77 #define TOMOYO_PROCESS_STATUS        3
  78 #define TOMOYO_MEMINFO               4
  79 #define TOMOYO_SELFDOMAIN            5
  80 #define TOMOYO_VERSION               6
  81 #define TOMOYO_PROFILE               7
  82 #define TOMOYO_MANAGER               8
  83
  84 extern struct tomoyo_domain_info tomoyo_kernel_domain;
  85
  86 static inline struct tomoyo_domain_info *tomoyo_domain(void)
  87 {
  88         return current_cred()->security;
  89 }
  90
  91 static inline struct tomoyo_domain_info *tomoyo_real_domain(struct task_struct
  92                                                             *task)
  93 {
  94         return task_cred_xxx(task, security);
  95 }
  96
  97 #endif /* !defined(_SECURITY_TOMOYO_TOMOYO_H) */