AppArmor: basic auditing infrastructure.

Update lsm_audit for AppArmor specific data, and add the core routines for
AppArmor uses for auditing.

Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 123 insertions, 0 deletions

diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h
new file mode 100644
index 000000000000..1951786d32e9
--- /dev/null
+++ b/security/apparmor/include/audit.h
@@ -0,0 +1,123 @@
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor auditing function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ */
+
+#ifndef __AA_AUDIT_H
+#define __AA_AUDIT_H
+
+#include <linux/audit.h>
+#include <linux/fs.h>
+#include <linux/lsm_audit.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include "file.h"
+
+struct aa_profile;
+
+extern const char *audit_mode_names[];
+#define AUDIT_MAX_INDEX 5
+
+#define AUDIT_APPARMOR_AUTO 0	/* auto choose audit message type */
+
+enum audit_mode {
+	AUDIT_NORMAL,		/* follow normal auditing of accesses */
+	AUDIT_QUIET_DENIED,	/* quiet all denied access messages */
+	AUDIT_QUIET,		/* quiet all messages */
+	AUDIT_NOQUIET,		/* do not quiet audit messages */
+	AUDIT_ALL		/* audit all accesses */
+};
+
+enum audit_type {
+	AUDIT_APPARMOR_AUDIT,
+	AUDIT_APPARMOR_ALLOWED,
+	AUDIT_APPARMOR_DENIED,
+	AUDIT_APPARMOR_HINT,
+	AUDIT_APPARMOR_STATUS,
+	AUDIT_APPARMOR_ERROR,
+	AUDIT_APPARMOR_KILL
+};
+
+extern const char *op_table[];
+enum aa_ops {
+	OP_NULL,
+
+	OP_SYSCTL,
+	OP_CAPABLE,
+
+	OP_UNLINK,
+	OP_MKDIR,
+	OP_RMDIR,
+	OP_MKNOD,
+	OP_TRUNC,
+	OP_LINK,
+	OP_SYMLINK,
+	OP_RENAME_SRC,
+	OP_RENAME_DEST,
+	OP_CHMOD,
+	OP_CHOWN,
+	OP_GETATTR,
+	OP_OPEN,
+
+	OP_FPERM,
+	OP_FLOCK,
+	OP_FMMAP,
+	OP_FMPROT,
+
+	OP_CREATE,
+	OP_POST_CREATE,
+	OP_BIND,
+	OP_CONNECT,
+	OP_LISTEN,
+	OP_ACCEPT,
+	OP_SENDMSG,
+	OP_RECVMSG,
+	OP_GETSOCKNAME,
+	OP_GETPEERNAME,
+	OP_GETSOCKOPT,
+	OP_SETSOCKOPT,
+	OP_SOCK_SHUTDOWN,
+
+	OP_PTRACE,
+
+	OP_EXEC,
+	OP_CHANGE_HAT,
+	OP_CHANGE_PROFILE,
+	OP_CHANGE_ONEXEC,
+
+	OP_SETPROCATTR,
+	OP_SETRLIMIT,
+
+	OP_PROF_REPL,
+	OP_PROF_LOAD,
+	OP_PROF_RM,
+};
+
+
+/* define a short hand for apparmor_audit_data portion of common_audit_data */
+#define aad apparmor_audit_data
+
+void aa_audit_msg(int type, struct common_audit_data *sa,
+		  void (*cb) (struct audit_buffer *, void *));
+int aa_audit(int type, struct aa_profile *profile, gfp_t gfp,
+	     struct common_audit_data *sa,
+	     void (*cb) (struct audit_buffer *, void *));
+
+static inline int complain_error(int error)
+{
+	if (error == -EPERM || error == -EACCES)
+		return 0;
+	return error;
+}
+
+#endif /* __AA_AUDIT_H */