ia64/linux-2.6.18-xen.hg

view kernel/audit.h @ 562:66faefe721eb

pvSCSI backend driver

Signed-off-by: Tomonari Horikoshi <t.horikoshi@jp.fujitsu.com>
Signed-off-by: Jun Kamada <kama@jp.fujitsu.com>
author Keir Fraser <keir.fraser@citrix.com>
date Mon Jun 02 09:58:27 2008 +0100 (2008-06-02)
parents 831230e53067
children
line source
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 */
22 #include <linux/fs.h>
23 #include <linux/audit.h>
24 #include <linux/skbuff.h>
26 /* 0 = no checking
27 1 = put_count checking
28 2 = verbose put_count checking
29 */
30 #define AUDIT_DEBUG 0
32 /* At task start time, the audit_state is set in the audit_context using
33 a per-task filter. At syscall entry, the audit_state is augmented by
34 the syscall filter. */
35 enum audit_state {
36 AUDIT_DISABLED, /* Do not create per-task audit_context.
37 * No syscall-specific audit records can
38 * be generated. */
39 AUDIT_SETUP_CONTEXT, /* Create the per-task audit_context,
40 * but don't necessarily fill it in at
41 * syscall entry time (i.e., filter
42 * instead). */
43 AUDIT_BUILD_CONTEXT, /* Create the per-task audit_context,
44 * and always fill it in at syscall
45 * entry time. This makes a full
46 * syscall record available if some
47 * other part of the kernel decides it
48 * should be recorded. */
49 AUDIT_RECORD_CONTEXT /* Create the per-task audit_context,
50 * always fill it in at syscall entry
51 * time, and always write out the audit
52 * record at syscall exit time. */
53 };
55 /* Rule lists */
56 struct audit_parent;
58 struct audit_watch {
59 atomic_t count; /* reference count */
60 char *path; /* insertion path */
61 dev_t dev; /* associated superblock device */
62 unsigned long ino; /* associated inode number */
63 struct audit_parent *parent; /* associated parent */
64 struct list_head wlist; /* entry in parent->watches list */
65 struct list_head rules; /* associated rules */
66 };
68 struct audit_field {
69 u32 type;
70 u32 val;
71 u32 op;
72 char *se_str;
73 struct selinux_audit_rule *se_rule;
74 };
76 struct audit_krule {
77 int vers_ops;
78 u32 flags;
79 u32 listnr;
80 u32 action;
81 u32 mask[AUDIT_BITMASK_SIZE];
82 u32 buflen; /* for data alloc on list rules */
83 u32 field_count;
84 char *filterkey; /* ties events to rules */
85 struct audit_field *fields;
86 struct audit_field *inode_f; /* quick access to an inode field */
87 struct audit_watch *watch; /* associated watch */
88 struct list_head rlist; /* entry in audit_watch.rules list */
89 };
91 struct audit_entry {
92 struct list_head list;
93 struct rcu_head rcu;
94 struct audit_krule rule;
95 };
97 extern int audit_pid;
99 #define AUDIT_INODE_BUCKETS 32
100 extern struct list_head audit_inode_hash[AUDIT_INODE_BUCKETS];
102 static inline int audit_hash_ino(u32 ino)
103 {
104 return (ino & (AUDIT_INODE_BUCKETS-1));
105 }
107 extern int audit_match_class(int class, unsigned syscall);
108 extern int audit_comparator(const u32 left, const u32 op, const u32 right);
109 extern int audit_compare_dname_path(const char *dname, const char *path,
110 int *dirlen);
111 extern struct sk_buff * audit_make_reply(int pid, int seq, int type,
112 int done, int multi,
113 void *payload, int size);
114 extern void audit_send_reply(int pid, int seq, int type,
115 int done, int multi,
116 void *payload, int size);
117 extern void audit_log_lost(const char *message);
118 extern void audit_panic(const char *message);
120 struct audit_netlink_list {
121 int pid;
122 struct sk_buff_head q;
123 };
125 int audit_send_list(void *);
127 struct inotify_watch;
128 extern void audit_free_parent(struct inotify_watch *);
129 extern void audit_handle_ievent(struct inotify_watch *, u32, u32, u32,
130 const char *, struct inode *);
131 extern int selinux_audit_rule_update(void);
133 #ifdef CONFIG_AUDITSYSCALL
134 extern void __audit_signal_info(int sig, struct task_struct *t);
135 static inline void audit_signal_info(int sig, struct task_struct *t)
136 {
137 if (unlikely(audit_pid && t->tgid == audit_pid))
138 __audit_signal_info(sig, t);
139 }
140 extern enum audit_state audit_filter_inodes(struct task_struct *,
141 struct audit_context *);
142 extern void audit_set_auditable(struct audit_context *);
143 #else
144 #define audit_signal_info(s,t)
145 #define audit_filter_inodes(t,c) AUDIT_DISABLED
146 #define audit_set_auditable(c)
147 #endif