v4.19.13 snapshot.
diff --git a/include/linux/sunrpc/auth_gss.h b/include/linux/sunrpc/auth_gss.h
new file mode 100644
index 0000000..0c9eac3
--- /dev/null
+++ b/include/linux/sunrpc/auth_gss.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/include/linux/sunrpc/auth_gss.h
+ *
+ * Declarations for RPCSEC_GSS
+ *
+ * Dug Song <dugsong@monkey.org>
+ * Andy Adamson <andros@umich.edu>
+ * Bruce Fields <bfields@umich.edu>
+ * Copyright (c) 2000 The Regents of the University of Michigan
+ */
+
+#ifndef _LINUX_SUNRPC_AUTH_GSS_H
+#define _LINUX_SUNRPC_AUTH_GSS_H
+
+#ifdef __KERNEL__
+#include <linux/refcount.h>
+#include <linux/sunrpc/auth.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/gss_api.h>
+
+#define RPC_GSS_VERSION 1
+
+#define MAXSEQ 0x80000000 /* maximum legal sequence number, from rfc 2203 */
+
+enum rpc_gss_proc {
+ RPC_GSS_PROC_DATA = 0,
+ RPC_GSS_PROC_INIT = 1,
+ RPC_GSS_PROC_CONTINUE_INIT = 2,
+ RPC_GSS_PROC_DESTROY = 3
+};
+
+enum rpc_gss_svc {
+ RPC_GSS_SVC_NONE = 1,
+ RPC_GSS_SVC_INTEGRITY = 2,
+ RPC_GSS_SVC_PRIVACY = 3
+};
+
+/* on-the-wire gss cred: */
+struct rpc_gss_wire_cred {
+ u32 gc_v; /* version */
+ u32 gc_proc; /* control procedure */
+ u32 gc_seq; /* sequence number */
+ u32 gc_svc; /* service */
+ struct xdr_netobj gc_ctx; /* context handle */
+};
+
+/* on-the-wire gss verifier: */
+struct rpc_gss_wire_verf {
+ u32 gv_flavor;
+ struct xdr_netobj gv_verf;
+};
+
+/* return from gss NULL PROC init sec context */
+struct rpc_gss_init_res {
+ struct xdr_netobj gr_ctx; /* context handle */
+ u32 gr_major; /* major status */
+ u32 gr_minor; /* minor status */
+ u32 gr_win; /* sequence window */
+ struct xdr_netobj gr_token; /* token */
+};
+
+/* The gss_cl_ctx struct holds all the information the rpcsec_gss client
+ * code needs to know about a single security context. In particular,
+ * gc_gss_ctx is the context handle that is used to do gss-api calls, while
+ * gc_wire_ctx is the context handle that is used to identify the context on
+ * the wire when communicating with a server. */
+
+struct gss_cl_ctx {
+ refcount_t count;
+ enum rpc_gss_proc gc_proc;
+ u32 gc_seq;
+ spinlock_t gc_seq_lock;
+ struct gss_ctx *gc_gss_ctx;
+ struct xdr_netobj gc_wire_ctx;
+ struct xdr_netobj gc_acceptor;
+ u32 gc_win;
+ unsigned long gc_expiry;
+ struct rcu_head gc_rcu;
+};
+
+struct gss_upcall_msg;
+struct gss_cred {
+ struct rpc_cred gc_base;
+ enum rpc_gss_svc gc_service;
+ struct gss_cl_ctx __rcu *gc_ctx;
+ struct gss_upcall_msg *gc_upcall;
+ const char *gc_principal;
+ unsigned long gc_upcall_timestamp;
+};
+
+#endif /* __KERNEL__ */
+#endif /* _LINUX_SUNRPC_AUTH_GSS_H */
+