LXR linux/security/apparmor/include/apparmorfs.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * AppArmor security module
   4 *
   5 * This file contains AppArmor filesystem definitions.
   6 *
   7 * Copyright (C) 1998-2008 Novell/SUSE
   8 * Copyright 2009-2010 Canonical Ltd.
   9 */
  10
  11#ifndef __AA_APPARMORFS_H
  12#define __AA_APPARMORFS_H
  13
  14extern struct path aa_null;
  15
  16enum aa_sfs_type {
  17        AA_SFS_TYPE_BOOLEAN,
  18        AA_SFS_TYPE_STRING,
  19        AA_SFS_TYPE_U64,
  20        AA_SFS_TYPE_FOPS,
  21        AA_SFS_TYPE_DIR,
  22};
  23
  24struct aa_sfs_entry;
  25
  26struct aa_sfs_entry {
  27        const char *name;
  28        struct dentry *dentry;
  29        umode_t mode;
  30        enum aa_sfs_type v_type;
  31        union {
  32                bool boolean;
  33                char *string;
  34                unsigned long u64;
  35                struct aa_sfs_entry *files;
  36        } v;
  37        const struct file_operations *file_ops;
  38};
  39
  40extern const struct file_operations aa_sfs_seq_file_ops;
  41
  42#define AA_SFS_FILE_BOOLEAN(_name, _value) \
  43        { .name = (_name), .mode = 0444, \
  44          .v_type = AA_SFS_TYPE_BOOLEAN, .v.boolean = (_value), \
  45          .file_ops = &aa_sfs_seq_file_ops }
  46#define AA_SFS_FILE_STRING(_name, _value) \
  47        { .name = (_name), .mode = 0444, \
  48          .v_type = AA_SFS_TYPE_STRING, .v.string = (_value), \
  49          .file_ops = &aa_sfs_seq_file_ops }
  50#define AA_SFS_FILE_U64(_name, _value) \
  51        { .name = (_name), .mode = 0444, \
  52          .v_type = AA_SFS_TYPE_U64, .v.u64 = (_value), \
  53          .file_ops = &aa_sfs_seq_file_ops }
  54#define AA_SFS_FILE_FOPS(_name, _mode, _fops) \
  55        { .name = (_name), .v_type = AA_SFS_TYPE_FOPS, \
  56          .mode = (_mode), .file_ops = (_fops) }
  57#define AA_SFS_DIR(_name, _value) \
  58        { .name = (_name), .v_type = AA_SFS_TYPE_DIR, .v.files = (_value) }
  59
  60extern void __init aa_destroy_aafs(void);
  61
  62struct aa_profile;
  63struct aa_ns;
  64
  65enum aafs_ns_type {
  66        AAFS_NS_DIR,
  67        AAFS_NS_PROFS,
  68        AAFS_NS_NS,
  69        AAFS_NS_RAW_DATA,
  70        AAFS_NS_LOAD,
  71        AAFS_NS_REPLACE,
  72        AAFS_NS_REMOVE,
  73        AAFS_NS_REVISION,
  74        AAFS_NS_COUNT,
  75        AAFS_NS_MAX_COUNT,
  76        AAFS_NS_SIZE,
  77        AAFS_NS_MAX_SIZE,
  78        AAFS_NS_OWNER,
  79        AAFS_NS_SIZEOF,
  80};
  81
  82enum aafs_prof_type {
  83        AAFS_PROF_DIR,
  84        AAFS_PROF_PROFS,
  85        AAFS_PROF_NAME,
  86        AAFS_PROF_MODE,
  87        AAFS_PROF_ATTACH,
  88        AAFS_PROF_HASH,
  89        AAFS_PROF_RAW_DATA,
  90        AAFS_PROF_RAW_HASH,
  91        AAFS_PROF_RAW_ABI,
  92        AAFS_PROF_SIZEOF,
  93};
  94
  95#define ns_dir(X) ((X)->dents[AAFS_NS_DIR])
  96#define ns_subns_dir(X) ((X)->dents[AAFS_NS_NS])
  97#define ns_subprofs_dir(X) ((X)->dents[AAFS_NS_PROFS])
  98#define ns_subdata_dir(X) ((X)->dents[AAFS_NS_RAW_DATA])
  99#define ns_subload(X) ((X)->dents[AAFS_NS_LOAD])
 100#define ns_subreplace(X) ((X)->dents[AAFS_NS_REPLACE])
 101#define ns_subremove(X) ((X)->dents[AAFS_NS_REMOVE])
 102#define ns_subrevision(X) ((X)->dents[AAFS_NS_REVISION])
 103
 104#define prof_dir(X) ((X)->dents[AAFS_PROF_DIR])
 105#define prof_child_dir(X) ((X)->dents[AAFS_PROF_PROFS])
 106
 107void __aa_bump_ns_revision(struct aa_ns *ns);
 108void __aafs_profile_rmdir(struct aa_profile *profile);
 109void __aafs_profile_migrate_dents(struct aa_profile *old,
 110                                   struct aa_profile *new);
 111int __aafs_profile_mkdir(struct aa_profile *profile, struct dentry *parent);
 112void __aafs_ns_rmdir(struct aa_ns *ns);
 113int __aafs_ns_mkdir(struct aa_ns *ns, struct dentry *parent, const char *name,
 114                     struct dentry *dent);
 115
 116struct aa_loaddata;
 117void __aa_fs_remove_rawdata(struct aa_loaddata *rawdata);
 118int __aa_fs_create_rawdata(struct aa_ns *ns, struct aa_loaddata *rawdata);
 119
 120#endif /* __AA_APPARMORFS_H */
 121