Draft: datamodel for shell exec

dmexec/Makefile

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+#
+# Copyright (C) 2025 iopsys Software Solutions AB
+#
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=dmexec
+PKG_VERSION:=0.0.1
+PKG_RELEASE:=1
+PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
+PKG_LICENSE:=GPL-2.0-only
+
+include $(INCLUDE_DIR)/package.mk
+include $(TOPDIR)/feeds/iopsys/bbfdm/bbfdm.mk
+
+define Package/dmexec
+  SECTION:=utils
+  CATEGORY:=Utilities
+  TITLE:=Datamodel for shell exec
+  DEPENDS:=+dm-service
+endef
+
+define Package/dmexec/description
+  datamodel extension for running shell commands.
+endef
+
+define Build/Compile
+	# pass
+endef
+
+define Package/dmexec/install
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_DIR) $(1)/etc/init.d
+
+	$(INSTALL_DATA) ./files/etc/config/dmexec $(1)/etc/config/
+	$(INSTALL_BIN) ./files/etc/init.d/dmexec $(1)/etc/init.d/
+
+	$(BBFDM_REGISTER_SERVICES) ./bbfdm_service.json $(1) $(PKG_NAME)
+	$(BBFDM_INSTALL_MS_DM) ./files/dm_exec.json $(1) $(PKG_NAME)
+endef
+
+$(eval $(call BuildPackage,dmexec))

dmexec/bbfdm_service.json

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+{
+  "daemon": {
+    "enable": "1",
+    "service_name": "dmexec",
+    "unified_daemon": false,
+    "services": [
+      {
+        "parent_dm": "Device.",
+        "object": "X_GENEXIS_EU_CLI"
+      }
+    ],
+    "config": {
+      "loglevel": "7"
+    }
+  }
+}

dmexec/files/dm_exec.json

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+{
+  "json_plugin_version": 2,
+  "Device.X_GENEXIS_EU_CLI.": {
+    "type": "object",
+    "protocols": [
+      "cwmp",
+      "usp"
+    ],
+    "access": false,
+    "array": false,
+    "Enable": {
+      "type": "boolean",
+      "read": true,
+      "write": true,
+      "protocols": [
+        "cwmp",
+        "usp"
+      ],
+      "mapping": [
+        {
+          "type": "uci",
+          "uci": {
+            "file": "dmexec",
+            "section": {
+              "name": "dmexec"
+            },
+            "option": {
+              "name": "enable"
+            }
+          }
+        }
+      ]
+    },
+    "REQUEST": {
+      "type": "string",
+      "read": true,
+      "write": true,
+      "protocols": [
+        "cwmp",
+        "usp"
+      ],
+      "mapping": [
+        {
+          "type": "uci",
+          "uci": {
+            "file": "dmexec",
+            "section": {
+              "name": "dmexec"
+            },
+            "option": {
+              "name": "cmd"
+            }
+          }
+        }
+      ]
+    },
+    "RESULT": {
+      "type": "string",
+      "read": true,
+      "write": false,
+      "protocols": [
+        "cwmp",
+	"usp"
+      ],
+      "mapping": [
+        {
+          "type": "uci",
+          "uci": {
+            "file": "dmexec",
+            "section": {
+              "name": "dmexec"
+            },
+            "option": {
+              "name": "result"
+            }
+          }
+        }
+      ]
+    }
+  }
+}

dmexec/files/etc/config/dmexec

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+config dmexec 'dmexec'
+	option enable '0'
+

dmexec/files/etc/init.d/dmexec

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+#!/bin/sh /etc/rc.common
+
+START=99
+STOP=01
+
+USE_PROCD=1
+
+log() {
+	logger -t dmexec.init "$*"
+}
+
+start_service() {
+	procd_open_instance
+	procd_close_instance
+}
+
+reload_service() {
+	local cmd result enable
+
+	enable="$(uci -q get dmexec.dmexec.enable)"
+	enable="${enable:-0}"
+
+	if [ "${enable}" -eq "0" ]; then
+		log "dmexec is disabled"
+	fi
+
+	uci -q set dmexec.dmexec.result=""
+	cmd="$(uci -q get dmexec.dmexec.cmd)"
+	if [ -n "${cmd}" ]; then
+		log "Executing [${cmd}]"
+		result="$(eval $cmd 2>&1 |head -n 1 |head -c 256)"
+		result="${result//\'/}"
+		uci -q set dmexec.dmexec.result="${result}"
+		uci commit dmexec
+	fi
+}
+
+service_triggers() {
+	procd_add_reload_trigger dmexec
+}