modules: libSRTP glue added to the modules folder.

gule files added so Zephyr RTOS can use libSRTP.

Signed-off-by: Sayed Naser Moravej <seyednasermoravej@gmail.com>

Author: seyednasermoravej

modules/libsrtp/CMakeLists.txt

@@ -0,0 +1,43 @@
+# Copyright (c) 2025 Sayed Naser Moravej <seyednasermoravej@gmail.com>
+# SPDX-License-Identifier: Apache-2.0
+
+if(CONFIG_LIBSRTP)
+
+zephyr_include_directories(
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/include
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/include
+  ${CMAKE_CURRENT_SOURCE_DIR}
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/test
+)
+
+zephyr_library_named(libsrtp)
+
+zephyr_library_compile_definitions(MBEDTLS)
+
+zephyr_library_sources(
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/srtp/srtp.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/cipher/cipher.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/cipher/cipher_test_cases.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/cipher/null_cipher.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/math/datatypes.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/kernel/alloc.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/kernel/key.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/kernel/err.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/kernel/crypto_kernel.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/replay/rdb.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/replay/rdbx.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/hash/auth.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/hash/auth_test_cases.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/test/rtp.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/hash/null_auth.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/test/util.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/hash/hmac_mbedtls.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/cipher/aes_icm_mbedtls.c
+  ${ZEPHYR_LIBSRTP_MODULE_DIR}/crypto/cipher/aes_gcm_mbedtls.c
+)
+
+zephyr_library_compile_definitions(libsrtp HAVE_CONFIG_H)
+
+zephyr_library_link_libraries(mbedTLS)
+
+endif()

modules/libsrtp/Kconfig

@@ -0,0 +1,18 @@
+# Copyright (c) 2025 Sayed Naser Moravej <seyednasermoravej@gmail.com>
+# SPDX-License-Identifier: Apache-2.0
+
+config LIBSRTP
+	bool "libsrtp support"
+	depends on MBEDTLS
+	select MBEDTLS_CIPHER_AES_ENABLED
+	select MBEDTLS_CIPHER_CAMELLIA_ENABLED
+	select MBEDTLS_CIPHER_DES_ENABLED
+	select MBEDTLS_CIPHER_CHACHA20_ENABLED
+	select MBEDTLS_CIPHER_CCM_ENABLED
+	select MBEDTLS_CIPHER_GCM_ENABLED
+	select MBEDTLS_CIPHER_MODE_XTS_ENABLED
+	select MBEDTLS_CIPHER_MODE_CBC_ENABLED
+	select MBEDTLS_CIPHER_MODE_CTR_ENABLED
+
+	help
+	  Enable libsrtp library integration as a Zephyr module.

modules/libsrtp/config.h

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2025 Sayed Naser Moravej <seyednasermoravej@gmail.com>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <stdbool.h>
+
+#define PACKAGE_VERSION "1.0.0"
+
+#define PACKAGE_STRING "Zephyr 1.0.0"
+
+#define ENABLE_DEBUG_LOGGING 1
+
+#define CPU_CISC 1
+
+#define HAVE_ARPA_INET_H 1
+
+#define HAVE_INTTYPES_H 1
+
+#define HAVE_NETINET_IN_H 1
+
+#define HAVE_STDINT_H 1
+
+#define HAVE_STDLIB_H 1
+
+#define HAVE_SYS_SOCKET_H 1
+
+#define HAVE_SYS_TYPES_H 1
+
+#define HAVE_UNISTD_H 1
+
+#define HAVE_INET_ATON 1
+
+#define HAVE_USLEEP 1
+
+#define HAVE_UINT8_T 1
+
+#define HAVE_UINT16_T 1
+
+#define HAVE_UINT32_T 1
+
+#define HAVE_UINT64_T 1
+
+#define HAVE_INT32_T 1
+
+#define SIZEOF_UNSIGNED_LONG 4
+
+#define SIZEOF_UNSIGNED_LONG_LONG 8
+
+#define _SYS_SOCKET_H	1
+
+#include <zephyr/net/socket.h>
+
+#define MBEDTLS_AES_C
+
+#define MBEDTLS_CIPHER_C
+
+#define MBEDTLS_GCM_C
+
+#define MBEDTLS_CTR_DRBG_C
+
+#define MBEDTLS_MD_C
+
+#define MBEDTLS_HMAC_DRBG_C
+
+#define MBEDTLS 1
+
+#define HAVE_INLINE 1