audit.h 2.7 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687
  1. /* audit -- definition of audit_context structure and supporting types
  2. *
  3. * Copyright 2003-2004 Red Hat, Inc.
  4. * Copyright 2005 Hewlett-Packard Development Company, L.P.
  5. * Copyright 2005 IBM Corporation
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License as published by
  9. * the Free Software Foundation; either version 2 of the License, or
  10. * (at your option) any later version.
  11. *
  12. * This program is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with this program; if not, write to the Free Software
  19. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20. */
  21. #include <linux/fs.h>
  22. #include <linux/audit.h>
  23. /* 0 = no checking
  24. 1 = put_count checking
  25. 2 = verbose put_count checking
  26. */
  27. #define AUDIT_DEBUG 0
  28. /* At task start time, the audit_state is set in the audit_context using
  29. a per-task filter. At syscall entry, the audit_state is augmented by
  30. the syscall filter. */
  31. enum audit_state {
  32. AUDIT_DISABLED, /* Do not create per-task audit_context.
  33. * No syscall-specific audit records can
  34. * be generated. */
  35. AUDIT_SETUP_CONTEXT, /* Create the per-task audit_context,
  36. * but don't necessarily fill it in at
  37. * syscall entry time (i.e., filter
  38. * instead). */
  39. AUDIT_BUILD_CONTEXT, /* Create the per-task audit_context,
  40. * and always fill it in at syscall
  41. * entry time. This makes a full
  42. * syscall record available if some
  43. * other part of the kernel decides it
  44. * should be recorded. */
  45. AUDIT_RECORD_CONTEXT /* Create the per-task audit_context,
  46. * always fill it in at syscall entry
  47. * time, and always write out the audit
  48. * record at syscall exit time. */
  49. };
  50. /* Rule lists */
  51. struct audit_field {
  52. u32 type;
  53. u32 val;
  54. u32 op;
  55. };
  56. struct audit_krule {
  57. int vers_ops;
  58. u32 flags;
  59. u32 listnr;
  60. u32 action;
  61. u32 mask[AUDIT_BITMASK_SIZE];
  62. u32 buflen; /* for data alloc on list rules */
  63. u32 field_count;
  64. struct audit_field *fields;
  65. };
  66. struct audit_entry {
  67. struct list_head list;
  68. struct rcu_head rcu;
  69. struct audit_krule rule;
  70. };
  71. extern int audit_pid;
  72. extern int audit_comparator(const u32 left, const u32 op, const u32 right);
  73. extern void audit_send_reply(int pid, int seq, int type,
  74. int done, int multi,
  75. void *payload, int size);
  76. extern void audit_log_lost(const char *message);
  77. extern void audit_panic(const char *message);
  78. extern struct semaphore audit_netlink_sem;