v4.19.13 snapshot.
diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h
new file mode 100644
index 0000000..915330a
--- /dev/null
+++ b/include/linux/lsm_audit.h
@@ -0,0 +1,124 @@
+/* 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;
+ 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 {
+ char dev_name[IB_DEVICE_NAME_MAX];
+ 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
+ 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;
+ } 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