!nshlib: Require explicit fixed login password at build time

crypto/pbkdf2/CMakeLists.txt

@@ -0,0 +1,32 @@
+# ##############################################################################
+# apps/crypto/pbkdf2/CMakeLists.txt
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more contributor
+# license agreements.  See the NOTICE file distributed with this work for
+# additional information regarding copyright ownership.  The ASF licenses this
+# file to you under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License.  You may obtain a copy of
+# the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations under
+# the License.
+#
+# ##############################################################################
+
+if(CONFIG_CRYPTO_PBKDF2 OR CONFIG_FSUTILS_PASSWD)
+  nuttx_add_library(pbkdf2 STATIC)
+
+  target_sources(pbkdf2 PRIVATE pbkdf2_hmac_sha256.c)
+  target_include_directories(pbkdf2 PUBLIC ${CMAKE_CURRENT_LIST_DIR})
+
+  if(CONFIG_CRYPTO_MBEDTLS)
+    nuttx_add_dependencies(TARGET pbkdf2 DEPENDS mbedtls)
+  endif()
+endif()

crypto/pbkdf2/Kconfig

@@ -0,0 +1,15 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+config CRYPTO_PBKDF2
+	bool "PBKDF2-HMAC-SHA256 support"
+	default n
+	---help---
+		Enable a small, heap-free PBKDF2-HMAC-SHA256 implementation in
+		apps/crypto/pbkdf2.  When Mbed TLS with MBEDTLS_PKCS5_C is also
+		enabled, that backend is used; otherwise a self-contained SHA-256
+		and HMAC implementation is compiled.
+
+		Selected automatically when password file support is enabled.

crypto/pbkdf2/Make.defs

@@ -0,0 +1,27 @@
+############################################################################
+# apps/crypto/pbkdf2/Make.defs
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+ifneq ($(CONFIG_CRYPTO_PBKDF2),)
+CONFIGURED_APPS += $(APPDIR)/crypto/pbkdf2
+else ifneq ($(CONFIG_FSUTILS_PASSWD),)
+CONFIGURED_APPS += $(APPDIR)/crypto/pbkdf2
+endif

crypto/pbkdf2/Makefile

@@ -0,0 +1,29 @@
+############################################################################
+# apps/crypto/pbkdf2/Makefile
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+include $(APPDIR)/Make.defs
+
+CSRCS = pbkdf2_hmac_sha256.c
+
+CFLAGS += ${INCDIR_PREFIX}$(APPDIR)/crypto/pbkdf2
+
+include $(APPDIR)/Application.mk