security/apparmor/include/audit.h

   1 /*
   2  * AppArmor security module
   3  *
   4  * This file contains AppArmor auditing function definitions.
   5  *
   6  * Copyright (C) 1998-2008 Novell/SUSE
   7  * Copyright 2009-2010 Canonical Ltd.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation, version 2 of the
  12  * License.
  13  */
  14
  15 #ifndef __AA_AUDIT_H
  16 #define __AA_AUDIT_H
  17
  18 #include <linux/audit.h>
  19 #include <linux/fs.h>
  20 #include <linux/lsm_audit.h>
  21 #include <linux/sched.h>
  22 #include <linux/slab.h>
  23
  24 #include "file.h"
  25
  26 struct aa_profile;
  27
  28 extern const char *const audit_mode_names[];
  29 #define AUDIT_MAX_INDEX 5
  30 enum audit_mode {
  31         AUDIT_NORMAL,           /* follow normal auditing of accesses */
  32         AUDIT_QUIET_DENIED,     /* quiet all denied access messages */
  33         AUDIT_QUIET,            /* quiet all messages */
  34         AUDIT_NOQUIET,          /* do not quiet audit messages */
  35         AUDIT_ALL               /* audit all accesses */
  36 };
  37
  38 enum audit_type {
  39         AUDIT_APPARMOR_AUDIT,
  40         AUDIT_APPARMOR_ALLOWED,
  41         AUDIT_APPARMOR_DENIED,
  42         AUDIT_APPARMOR_HINT,
  43         AUDIT_APPARMOR_STATUS,
  44         AUDIT_APPARMOR_ERROR,
  45         AUDIT_APPARMOR_KILL,
  46         AUDIT_APPARMOR_AUTO
  47 };
  48
  49 #define OP_NULL NULL
  50
  51 #define OP_SYSCTL "sysctl"
  52 #define OP_CAPABLE "capable"
  53
  54 #define OP_UNLINK "unlink"
  55 #define OP_MKDIR "mkdir"
  56 #define OP_RMDIR "rmdir"
  57 #define OP_MKNOD "mknod"
  58 #define OP_TRUNC "truncate"
  59 #define OP_LINK "link"
  60 #define OP_SYMLINK "symlink"
  61 #define OP_RENAME_SRC "rename_src"
  62 #define OP_RENAME_DEST "rename_dest"
  63 #define OP_CHMOD "chmod"
  64 #define OP_CHOWN "chown"
  65 #define OP_GETATTR "getattr"
  66 #define OP_OPEN "open"
  67
  68 #define OP_FPERM "file_perm"
  69 #define OP_FLOCK "file_lock"
  70 #define OP_FMMAP "file_mmap"
  71 #define OP_FMPROT "file_mprotect"
  72
  73 #define OP_CREATE "create"
  74 #define OP_POST_CREATE "post_create"
  75 #define OP_BIND "bind"
  76 #define OP_CONNECT "connect"
  77 #define OP_LISTEN "listen"
  78 #define OP_ACCEPT "accept"
  79 #define OP_SENDMSG "sendmsg"
  80 #define OP_RECVMSG "recvmsg"
  81 #define OP_GETSOCKNAME "getsockname"
  82 #define OP_GETPEERNAME "getpeername"
  83 #define OP_GETSOCKOPT "getsockopt"
  84 #define OP_SETSOCKOPT "setsockopt"
  85 #define OP_SHUTDOWN "socket_shutdown"
  86
  87 #define OP_PTRACE "ptrace"
  88
  89 #define OP_EXEC "exec"
  90
  91 #define OP_CHANGE_HAT "change_hat"
  92 #define OP_CHANGE_PROFILE "change_profile"
  93 #define OP_CHANGE_ONEXEC "change_onexec"
  94
  95 #define OP_SETPROCATTR "setprocattr"
  96 #define OP_SETRLIMIT "setrlimit"
  97
  98 #define OP_PROF_REPL "profile_replace"
  99 #define OP_PROF_LOAD "profile_load"
 100 #define OP_PROF_RM "profile_remove"
 101
 102
 103 struct apparmor_audit_data {
 104         int error;
 105         const char *op;
 106         int type;
 107         void *profile;
 108         const char *name;
 109         const char *info;
 110         union {
 111                 /* these entries require a custom callback fn */
 112                 struct {
 113                         struct aa_profile *peer;
 114                         struct {
 115                                 const char *target;
 116                                 u32 request;
 117                                 u32 denied;
 118                                 kuid_t ouid;
 119                         } fs;
 120                 };
 121                 struct {
 122                         const char *name;
 123                         long pos;
 124                         const char *ns;
 125                 } iface;
 126                 struct {
 127                         int rlim;
 128                         unsigned long max;
 129                 } rlim;
 130         };
 131 };
 132
 133 /* macros for dealing with  apparmor_audit_data structure */
 134 #define aad(SA) ((SA)->apparmor_audit_data)
 135 #define DEFINE_AUDIT_DATA(NAME, T, X)                                   \
 136         /* TODO: cleanup audit init so we don't need _aad = {0,} */     \
 137         struct apparmor_audit_data NAME ## _aad = { .op = (X), };       \
 138         struct common_audit_data NAME =                                 \
 139         {                                                               \
 140         .type = (T),                                                    \
 141         .u.tsk = NULL,                                                  \
 142         };                                                              \
 143         NAME.apparmor_audit_data = &(NAME ## _aad)
 144
 145 void aa_audit_msg(int type, struct common_audit_data *sa,
 146                   void (*cb) (struct audit_buffer *, void *));
 147 int aa_audit(int type, struct aa_profile *profile, struct common_audit_data *sa,
 148              void (*cb) (struct audit_buffer *, void *));
 149
 150 #define aa_audit_error(ERROR, SA, CB)                           \
 151 ({                                                              \
 152         aad((SA))->error = (ERROR);                             \
 153         aa_audit_msg(AUDIT_APPARMOR_ERROR, (SA), (CB));         \
 154         aad((SA))->error;                                       \
 155 })
 156
 157
 158 static inline int complain_error(int error)
 159 {
 160         if (error == -EPERM || error == -EACCES)
 161                 return 0;
 162         return error;
 163 }
 164
 165 #endif /* __AA_AUDIT_H */