mcumgr: Add a copy of image management state

Add a copy of the img_mgmt_state.c file, so it can be adjusted to work
with all NCS-specific extensions.

Zephyr revision: 25269118b5069ebb72316d2a26bdedbe6ba8de95

Signed-off-by: Tomasz Chyrowicz <[email protected]>

Author: tomchy

scripts/ci/license_allow_list.yaml

@@ -50,6 +50,7 @@ Apache-2.0: |
   ^nrf/tests/benchmarks/kernel_freq_change/src/kernel_context.c
   ^nrf/tests/subsys/suit/common/tls_config/user-tls-conf.h
   ^nrf/subsys/settings/
+  ^nrf/subsys/mgmt/mcumgr/grp/img_mgmt/src/img_mgmt_state.c
   ^nrf/tests/zephyr/subsys/settings/
   ^nrf/samples/zephyr/
 curl: "^nrf/ext/"

subsys/mgmt/mcumgr/grp/CMakeLists.txt

@@ -5,3 +5,4 @@
 #
 
 add_subdirectory_ifdef(CONFIG_MCUMGR_GRP_OS os_mgmt)
+add_subdirectory_ifdef(CONFIG_MCUMGR_GRP_IMG img_mgmt)

subsys/mgmt/mcumgr/grp/Kconfig

@@ -7,5 +7,6 @@
 menu "Additional MCUmgr group configuration"
 
 rsource "os_mgmt/Kconfig"
+rsource "img_mgmt/Kconfig"
 
 endmenu

subsys/mgmt/mcumgr/grp/img_mgmt/CMakeLists.txt

@@ -0,0 +1,18 @@
+#
+# Copyright (c) 2025 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+if(CONFIG_MCUMGR_GRP_IMG_NRF)
+  zephyr_library_amend()
+  zephyr_library_sources(
+    src/img_mgmt_state.c
+  )
+
+  set_source_files_properties(
+    ${ZEPHYR_BASE}/subsys/mgmt/mcumgr/grp/img_mgmt/src/img_mgmt_state.c
+    DIRECTORY ${ZEPHYR_BASE}/subsys/mgmt/mcumgr/grp/img_mgmt/
+    PROPERTIES HEADER_FILE_ONLY ON
+  )
+endif()

subsys/mgmt/mcumgr/grp/img_mgmt/Kconfig

@@ -0,0 +1,16 @@
+#
+# Copyright (c) 2025 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+menu "Additional MCUmgr image management group functionality"
+
+config MCUMGR_GRP_IMG_NRF
+	bool "Use an extended version of the image management implementation"
+	depends on MCUMGR_GRP_IMG
+	help
+	  Enables use of an extended version of the image management implementation that adds
+	  Nordic-specific functionalities.
+
+endmenu