luci-app-snmpd: Basic net-snmpd config options

Imported from https://github.com/remakeelectric/owrt_pub_feeds/tree/master/luci-app-snmpd

Only provides configuration of basic authentication and system level
options, not even close to the entire slew of options that net-snmp
supports, but the basics are still helpful, and a base for future work.

Signed-off-by: Karl Palsson <karlp@etactica.com>

applications/luci-app-snmpd/Makefile

@@ -0,0 +1,13 @@
+include $(TOPDIR)/rules.mk
+
+LUCI_TITLE:= Net-SNMP LuCI interface
+LUCI_DEPENDS:= +luci-base
+LUCI_PKGARCH:=all
+LUCI_DESCRIPTION:=Some common net-snmp config items. In no way is this comprehensive.
+
+PKG_MAINTAINER:= Karl Palsson <karlp@etactica.com>
+PKG_LICENSE:=Apache-2.0
+
+include ../../luci.mk
+
+# call BuildPackage - OpenWrt buildroot signature

applications/luci-app-snmpd/luasrc/controller/snmpd.lua

@@ -0,0 +1,5 @@
+module("luci.controller.snmpd", package.seeall)
+
+function index()
+    entry({"admin", "services", "snmpd"}, cbi("snmpd"), "SNMPD")
+end

applications/luci-app-snmpd/luasrc/model/cbi/snmpd.lua

@@ -0,0 +1,62 @@
+--[[
+LuCI model for net-snmp configuration management
+Copyright Karl Palsson <karlp@etactica.com>
+
+Licensed 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
+
+]]--
+
+local datatypes = require("luci.cbi.datatypes")
+
+m = Map("snmpd", "net-snmp's SNMPD",
+    [[SNMPD is a master daemon/agent for SNMP, from the <a href='http://www.net-snmp.org'>
+ net-snmp project</a>.
+ Note, OpenWrt has mostly complete UCI support for snmpd, but this LuCI applet
+ only covers a few of those options. In particular, there is very little/no validation
+ or help.
+See /etc/config/snmpd for manual configuration.
+ ]])
+ 
+s = m:section(TypedSection, "agent", "Agent settings")
+s.anonymous = true
+p = s:option(Value, "agentaddress", "The address the agent should listen on",
+	[[Eg: UDP:161, or UDP:10.5.4.3:161 to only listen on a given interface]])
+
+s = m:section(TypedSection, "agentx", "AgentX settings")
+s.anonymous = true
+p = s:option(Value, "agentxsocket", "The address the agent should allow agentX connections to",
+    [[This is only necessary if you have subagents using the agentX socket protocol.
+    Note that agentX requires TCP transport]])
+
+s = m:section(TypedSection, "com2sec", "com2sec security")
+p = s:option(Value, "secname", "secname")
+p = s:option(Value, "source", "source")
+p = s:option(Value, "community", "community")
+
+s = m:section(TypedSection, "group", "group", "Groups help define access methods")
+s.addremove=true
+s:option(Value, "group", "group")
+s:option(Value, "version", "version")
+s:option(Value, "secname", "secname")
+
+s = m:section(TypedSection, "access", "access")
+s:option(Value, "group", "group")
+s:option(Value, "context", "context")
+s:option(Value, "version", "version")
+s:option(Value, "level", "level")
+s:option(Value, "prefix", "prefix")
+s:option(Value, "read", "read")
+s:option(Value, "write", "write")
+s:option(Value, "notify", "notify")
+
+s = m:section(TypedSection, "system", "System", "Values used in the MIB2 System tree")
+s.anonymous = true
+s:option(Value, "sysLocation", "sysLocation")
+s:option(Value, "sysContact", "sysContact")
+s:option(Value, "sysName", "sysName")
+
+return m