From b58ea5842aacd8519d2a462ab186e2df597667a6 Mon Sep 17 00:00:00 2001
From: David Garske <david@wolfssl.com>
Date: Fri, 18 Sep 2020 17:04:26 -0700
Subject: [PATCH] wolfSSL RC2 template.

---
 configure.ac                 | 14 ++++++++++++
 src/include.am               |  4 ++++
 wolfcrypt/src/rc2.c          | 43 ++++++++++++++++++++++++++++++++++++
 wolfssl/wolfcrypt/include.am |  1 +
 wolfssl/wolfcrypt/rc2.h      | 41 ++++++++++++++++++++++++++++++++++
 5 files changed, 103 insertions(+)
 create mode 100644 wolfcrypt/src/rc2.c
 create mode 100644 wolfssl/wolfcrypt/rc2.h

diff --git a/configure.ac b/configure.ac
index 8ea7dc0b9..808da3ae3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2781,6 +2781,19 @@ else
 fi
 
 
+# RC2
+AC_ARG_ENABLE([rc2],
+    [AS_HELP_STRING([--enable-rc2],[Enable RC2 encryption (default: disabled)])],
+    [ ENABLED_RC2=$enableval ],
+    [ ENABLED_RC2=no ]
+    )
+
+if test "$ENABLED_RC2" = "yes"
+then
+    AM_CFLAGS="$AM_CFLAGS -DWC_RC2"
+fi
+
+
 # FIPS
 AS_CASE([$FIPS_VERSION],
     ["v2"],[
@@ -5751,6 +5764,7 @@ AM_CONDITIONAL([BUILD_HASHFLAGS],[test "x$ENABLED_HASHFLAGS" = "xyes"])
 AM_CONDITIONAL([BUILD_LINUXKM],[test "$ENABLED_LINUXKM" = "yes"])
 AM_CONDITIONAL([BUILD_NO_LIBRARY],[test "$ENABLED_NO_LIBRARY" = "yes"])
 AM_CONDITIONAL([BUILD_DEBUG],[test "$ax_enable_debug" = "yes" || test "$ENABLED_STACKSIZE" = "yes"])
+AM_CONDITIONAL([BUILD_RC2],[test "x$ENABLED_RC2" = "xyes"])
 
 
 CREATE_HEX_VERSION
diff --git a/src/include.am b/src/include.am
index c03d04b93..1a73a7536 100644
--- a/src/include.am
+++ b/src/include.am
@@ -208,6 +208,10 @@ endif
 endif
 endif
 
+if BUILD_RC2
+src_libwolfssl_la_SOURCES += wolfcrypt/src/rc2.c
+endif
+
 if BUILD_SP
 if BUILD_SP_C
 src_libwolfssl_la_SOURCES += wolfcrypt/src/sp_c32.c
diff --git a/wolfcrypt/src/rc2.c b/wolfcrypt/src/rc2.c
new file mode 100644
index 000000000..920ab8db1
--- /dev/null
+++ b/wolfcrypt/src/rc2.c
@@ -0,0 +1,43 @@
+/* rc2.c
+ *
+ * Copyright (C) 2006-2020 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+
+/*
+
+DESCRIPTION
+This library provides the interface to the RC2 encryption algorithm.
+
+*/
+#ifdef HAVE_CONFIG_H
+    #include <config.h>
+#endif
+
+#include <wolfssl/wolfcrypt/settings.h>
+
+#ifdef WC_RC2
+
+#include <wolfssl/wolfcrypt/rc2.h>
+#include <wolfssl/wolfcrypt/error-crypt.h>
+
+
+
+
+
+#endif /* WC_RC2 */
diff --git a/wolfssl/wolfcrypt/include.am b/wolfssl/wolfcrypt/include.am
index 81571b37d..8041a8bbc 100644
--- a/wolfssl/wolfcrypt/include.am
+++ b/wolfssl/wolfcrypt/include.am
@@ -43,6 +43,7 @@ nobase_include_HEADERS+= \
                          wolfssl/wolfcrypt/random.h \
                          wolfssl/wolfcrypt/ripemd.h \
                          wolfssl/wolfcrypt/rsa.h \
+                         wolfssl/wolfcrypt/rc2.h \
                          wolfssl/wolfcrypt/settings.h \
                          wolfssl/wolfcrypt/sha256.h \
                          wolfssl/wolfcrypt/sha512.h \
diff --git a/wolfssl/wolfcrypt/rc2.h b/wolfssl/wolfcrypt/rc2.h
new file mode 100644
index 000000000..9d8581421
--- /dev/null
+++ b/wolfssl/wolfcrypt/rc2.h
@@ -0,0 +1,41 @@
+/* rc2.h
+ *
+ * Copyright (C) 2006-2020 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+
+#ifndef WOLF_CRYPT_RC2_H
+#define WOLF_CRYPT_RC2_H
+
+#include <wolfssl/wolfcrypt/types.h>
+
+#ifdef WC_RC2
+
+#ifdef __cplusplus
+    extern "C" {
+#endif
+
+
+
+
+#ifdef __cplusplus
+    } /* extern "C" */
+#endif
+
+#endif /* WC_RC2 */
+#endif /* WOLF_CRYPT_RC2_H */