objsec.h 3.9 KB

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  1. /*
  2. * NSA Security-Enhanced Linux (SELinux) security module
  3. *
  4. * This file contains the SELinux security data structures for kernel objects.
  5. *
  6. * Author(s): Stephen Smalley, <sds@epoch.ncsc.mil>
  7. * Chris Vance, <cvance@nai.com>
  8. * Wayne Salamon, <wsalamon@nai.com>
  9. * James Morris <jmorris@redhat.com>
  10. *
  11. * Copyright (C) 2001,2002 Networks Associates Technology, Inc.
  12. * Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
  13. *
  14. * This program is free software; you can redistribute it and/or modify
  15. * it under the terms of the GNU General Public License version 2,
  16. * as published by the Free Software Foundation.
  17. */
  18. #ifndef _SELINUX_OBJSEC_H_
  19. #define _SELINUX_OBJSEC_H_
  20. #include <linux/list.h>
  21. #include <linux/sched.h>
  22. #include <linux/fs.h>
  23. #include <linux/binfmts.h>
  24. #include <linux/in.h>
  25. #include "flask.h"
  26. #include "avc.h"
  27. struct task_security_struct {
  28. unsigned long magic; /* magic number for this module */
  29. struct task_struct *task; /* back pointer to task object */
  30. u32 osid; /* SID prior to last execve */
  31. u32 sid; /* current SID */
  32. u32 exec_sid; /* exec SID */
  33. u32 create_sid; /* fscreate SID */
  34. u32 ptrace_sid; /* SID of ptrace parent */
  35. };
  36. struct inode_security_struct {
  37. unsigned long magic; /* magic number for this module */
  38. struct inode *inode; /* back pointer to inode object */
  39. struct list_head list; /* list of inode_security_struct */
  40. u32 task_sid; /* SID of creating task */
  41. u32 sid; /* SID of this object */
  42. u16 sclass; /* security class of this object */
  43. unsigned char initialized; /* initialization flag */
  44. struct semaphore sem;
  45. unsigned char inherit; /* inherit SID from parent entry */
  46. unsigned char security_attr_init; /* security attributes init flag */
  47. };
  48. struct file_security_struct {
  49. unsigned long magic; /* magic number for this module */
  50. struct file *file; /* back pointer to file object */
  51. u32 sid; /* SID of open file description */
  52. u32 fown_sid; /* SID of file owner (for SIGIO) */
  53. };
  54. struct superblock_security_struct {
  55. unsigned long magic; /* magic number for this module */
  56. struct super_block *sb; /* back pointer to sb object */
  57. struct list_head list; /* list of superblock_security_struct */
  58. u32 sid; /* SID of file system */
  59. u32 def_sid; /* default SID for labeling */
  60. unsigned int behavior; /* labeling behavior */
  61. unsigned char initialized; /* initialization flag */
  62. unsigned char proc; /* proc fs */
  63. struct semaphore sem;
  64. struct list_head isec_head;
  65. spinlock_t isec_lock;
  66. };
  67. struct msg_security_struct {
  68. unsigned long magic; /* magic number for this module */
  69. struct msg_msg *msg; /* back pointer */
  70. u32 sid; /* SID of message */
  71. };
  72. struct ipc_security_struct {
  73. unsigned long magic; /* magic number for this module */
  74. struct kern_ipc_perm *ipc_perm; /* back pointer */
  75. u16 sclass; /* security class of this object */
  76. u32 sid; /* SID of IPC resource */
  77. };
  78. struct bprm_security_struct {
  79. unsigned long magic; /* magic number for this module */
  80. struct linux_binprm *bprm; /* back pointer to bprm object */
  81. u32 sid; /* SID for transformed process */
  82. unsigned char set;
  83. /*
  84. * unsafe is used to share failure information from bprm_apply_creds()
  85. * to bprm_post_apply_creds().
  86. */
  87. char unsafe;
  88. };
  89. struct netif_security_struct {
  90. struct net_device *dev; /* back pointer */
  91. u32 if_sid; /* SID for this interface */
  92. u32 msg_sid; /* default SID for messages received on this interface */
  93. };
  94. struct sk_security_struct {
  95. unsigned long magic; /* magic number for this module */
  96. struct sock *sk; /* back pointer to sk object */
  97. u32 peer_sid; /* SID of peer */
  98. };
  99. extern unsigned int selinux_checkreqprot;
  100. #endif /* _SELINUX_OBJSEC_H_ */