1 files changed, 129 insertions, 0 deletions
diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h
new file mode 100644
index 000000000..97a8b21eb
--- /dev/null
+++ b/include/linux/lsm_audit.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common LSM logging functions
+ * Heavily borrowed from selinux/avc.h
+ *
+ * Author : Etienne BASSET  <etienne.basset@ensta.org>
+ *
+ * All credits to : Stephen Smalley, <sds@tycho.nsa.gov>
+ * All BUGS to : Etienne BASSET  <etienne.basset@ensta.org>
+ */
+#ifndef _LSM_COMMON_LOGGING_
+#define _LSM_COMMON_LOGGING_
+
+#include <linux/stddef.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/kdev_t.h>
+#include <linux/spinlock.h>
+#include <linux/init.h>
+#include <linux/audit.h>
+#include <linux/in6.h>
+#include <linux/path.h>
+#include <linux/key.h>
+#include <linux/skbuff.h>
+#include <rdma/ib_verbs.h>
+
+struct lsm_network_audit {
+	int netif;
+	const struct sock *sk;
+	u16 family;
+	__be16 dport;
+	__be16 sport;
+	union {
+		struct {
+			__be32 daddr;
+			__be32 saddr;
+		} v4;
+		struct {
+			struct in6_addr daddr;
+			struct in6_addr saddr;
+		} v6;
+	} fam;
+};
+
+struct lsm_ioctlop_audit {
+	struct path path;
+	u16 cmd;
+};
+
+struct lsm_ibpkey_audit {
+	u64 subnet_prefix;
+	u16 pkey;
+};
+
+struct lsm_ibendport_audit {
+	const char *dev_name;
+	u8 port;
+};
+
+/* Auxiliary data to use in generating the audit record. */
+struct common_audit_data {
+	char type;
+#define LSM_AUDIT_DATA_PATH	1
+#define LSM_AUDIT_DATA_NET	2
+#define LSM_AUDIT_DATA_CAP	3
+#define LSM_AUDIT_DATA_IPC	4
+#define LSM_AUDIT_DATA_TASK	5
+#define LSM_AUDIT_DATA_KEY	6
+#define LSM_AUDIT_DATA_NONE	7
+#define LSM_AUDIT_DATA_KMOD	8
+#define LSM_AUDIT_DATA_INODE	9
+#define LSM_AUDIT_DATA_DENTRY	10
+#define LSM_AUDIT_DATA_IOCTL_OP	11
+#define LSM_AUDIT_DATA_FILE	12
+#define LSM_AUDIT_DATA_IBPKEY	13
+#define LSM_AUDIT_DATA_IBENDPORT 14
+#define LSM_AUDIT_DATA_LOCKDOWN 15
+#define LSM_AUDIT_DATA_NOTIFICATION 16
+#define LSM_AUDIT_DATA_ANONINODE	17
+	union 	{
+		struct path path;
+		struct dentry *dentry;
+		struct inode *inode;
+		struct lsm_network_audit *net;
+		int cap;
+		int ipc_id;
+		struct task_struct *tsk;
+#ifdef CONFIG_KEYS
+		struct {
+			key_serial_t key;
+			char *key_desc;
+		} key_struct;
+#endif
+		char *kmod_name;
+		struct lsm_ioctlop_audit *op;
+		struct file *file;
+		struct lsm_ibpkey_audit *ibpkey;
+		struct lsm_ibendport_audit *ibendport;
+		int reason;
+		const char *anonclass;
+	} u;
+	/* this union contains LSM specific data */
+	union {
+#ifdef CONFIG_SECURITY_SMACK
+		struct smack_audit_data *smack_audit_data;
+#endif
+#ifdef CONFIG_SECURITY_SELINUX
+		struct selinux_audit_data *selinux_audit_data;
+#endif
+#ifdef CONFIG_SECURITY_APPARMOR
+		struct apparmor_audit_data *apparmor_audit_data;
+#endif
+	}; /* per LSM data pointer union */
+};
+
+#define v4info fam.v4
+#define v6info fam.v6
+
+int ipv4_skb_to_auditdata(struct sk_buff *skb,
+		struct common_audit_data *ad, u8 *proto);
+
+int ipv6_skb_to_auditdata(struct sk_buff *skb,
+		struct common_audit_data *ad, u8 *proto);
+
+void common_lsm_audit(struct common_audit_data *a,
+	void (*pre_audit)(struct audit_buffer *, void *),
+	void (*post_audit)(struct audit_buffer *, void *));
+
+#endif