Make internal header file names consistent

Libcrypto currently has a mess of *_lcl.h, *_locl.h, and *_local.h names
used for internal headers. Move all these headers we inherited from
OpenSSL to *_local.h, reserving the name *_internal.h for our own code.
Similarly, move dtls_locl.h and ssl_locl.h to dtls_local and ssl_local.h.
constant_time_locl.h is moved to constant_time.h since it's special.

Adjust all .c files in libcrypto, libssl and regress.

The diff is mechanical with the exception of tls13_quic.c, where
#include <ssl_locl.h> was fixed manually.

discussed with jsing,
no objection bcook

4 files changed, 8 insertions, 8 deletions

diff --git a/src/lib/libcrypto/ecdh/ecdh_kdf.c b/src/lib/libcrypto/ecdh/ecdh_kdf.c
index 25398626e2..5c22e9c8ea 100644
--- a/src/lib/libcrypto/ecdh/ecdh_kdf.c
+++ b/src/lib/libcrypto/ecdh/ecdh_kdf.c
@@ -55,7 +55,7 @@
 #include <openssl/ec.h>
 #include <openssl/evp.h>
 
-#include "ech_locl.h"
+#include "ech_local.h"
 
 /*
  * Key derivation function from X9.63/SECG.
diff --git a/src/lib/libcrypto/ecdh/ech_key.c b/src/lib/libcrypto/ecdh/ech_key.c
index ee78905848..a5c6371f91 100644
--- a/src/lib/libcrypto/ecdh/ech_key.c
+++ b/src/lib/libcrypto/ecdh/ech_key.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ech_key.c,v 1.13 2022/06/30 11:14:47 tb Exp $ */
+/* $OpenBSD: ech_key.c,v 1.14 2022/11/26 16:08:52 tb Exp $ */
 /* ====================================================================
  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
  *
@@ -77,9 +77,9 @@
 #include <openssl/objects.h>
 #include <openssl/sha.h>
 
-#include "bn_lcl.h"
-#include "ech_locl.h"
-#include "ec_lcl.h"
+#include "bn_local.h"
+#include "ech_local.h"
+#include "ec_local.h"
 
 static int ecdh_compute_key(void *out, size_t len, const EC_POINT *pub_key,
     EC_KEY *ecdh,
diff --git a/src/lib/libcrypto/ecdh/ech_lib.c b/src/lib/libcrypto/ecdh/ech_lib.c
index cc8edafa07..6caef5988f 100644
--- a/src/lib/libcrypto/ecdh/ech_lib.c
+++ b/src/lib/libcrypto/ecdh/ech_lib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ech_lib.c,v 1.14 2018/04/14 07:09:21 tb Exp $ */
+/* $OpenBSD: ech_lib.c,v 1.15 2022/11/26 16:08:52 tb Exp $ */
 /* ====================================================================
  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
  *
@@ -71,7 +71,7 @@
 
 #include <openssl/opensslconf.h>
 
-#include "ech_locl.h"
+#include "ech_local.h"
 #ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
 #endif
diff --git a/src/lib/libcrypto/ecdh/ech_locl.h b/src/lib/libcrypto/ecdh/ech_local.h
index b04d325ed1..33dd943c5a 100644
--- a/src/lib/libcrypto/ecdh/ech_locl.h
+++ b/src/lib/libcrypto/ecdh/ech_local.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: ech_locl.h,v 1.6 2019/09/05 16:12:36 jsing Exp $ */
+/* $OpenBSD: ech_local.h,v 1.1 2022/11/26 16:08:52 tb Exp $ */
 /* ====================================================================
  * Copyright (c) 2000-2005 The OpenSSL Project.  All rights reserved.
  *