375 lines
11 KiB
Lua
375 lines
11 KiB
Lua
--[[
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LuCI - Lua Configuration Interface
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Copyright 2008 Steven Barth <steven@midlink.org>
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Copyright 2010 Jo-Philipp Wich <xm@subsignal.org>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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$Id$
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]]--
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m = Map("network", translate("Switch"), translate("The network ports on your router can be combined to several <abbr title=\"Virtual Local Area Network\">VLAN</abbr>s in which computers can communicate directly with each other. <abbr title=\"Virtual Local Area Network\">VLAN</abbr>s are often used to separate different network segments. Often there is by default one Uplink port for a connection to the next greater network like the internet and other ports for a local network."))
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m.uci:foreach("network", "switch",
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function(x)
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local switch_name = x.name or x['.name']
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local has_vlan4k = nil
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local has_ptpvid = nil
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local max_vid = 16
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local num_vlans = 16
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local num_ports = 5
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local cpu_port = 5
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local enable_vlan4k = false
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-- Parse some common switch properties from swconfig help output.
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local swc = io.popen("swconfig dev %q help 2>/dev/null" % switch_name)
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if swc then
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local is_port_attr = false
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local is_vlan_attr = false
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while true do
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local line = swc:read("*l")
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if not line then break end
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if line:match("^%s+%-%-vlan") then
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is_vlan_attr = true
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elseif line:match("^%s+%-%-port") then
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is_vlan_attr = false
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is_port_attr = true
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elseif line:match("^Switch %d+:") then
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num_ports, cpu_port, num_vlans =
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line:match("ports: (%d+) %(cpu @ (%d+)%), vlans: (%d+)")
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num_ports = tonumber(num_ports or 5)
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num_vlans = tonumber(num_vlans or 16)
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cpu_port = tonumber(cpu_port or 5)
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elseif line:match(": pvid") or line:match(": tag") or line:match(": vid") then
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if is_vlan_attr then has_vlan4k = line:match(": (%w+)") end
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if is_port_attr then has_ptpvid = line:match(": (%w+)") end
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elseif line:match(": enable_vlan4k") then
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enable_vlan4k = true
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end
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end
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swc:close()
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end
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-- The PVID options (if any) are added to this table so that
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-- section create below can add the just created vlan to the
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-- choice list of the PVID options...
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local pvid_opts = { }
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-- This function re-reads all existing vlan ids and populates
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-- PVID options choice lists
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local function populate_pvids()
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local vlan_ids = { }
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m.uci:foreach("network", "switch_vlan",
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function(s)
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local vid = s[has_vlan4k or "vlan"] or s["vlan"]
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if vid ~= nil then
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vlan_ids[#vlan_ids+1] = vid
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end
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end)
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local opt, vid
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for _, opt in ipairs(pvid_opts) do
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opt:reset_values()
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opt:value("", translate("none"))
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for _, vid in luci.util.vspairs(vlan_ids) do
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opt:value(vid, translatef("VLAN %d", tonumber(vid)))
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end
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end
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end
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-- Switch properties
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s = m:section(NamedSection, x['.name'], "switch", translatef("Switch %q", switch_name))
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s.addremove = false
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s:option(Flag, "enable", translate("Enable this switch"))
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.cfgvalue = function(self, section) return Flag.cfgvalue(self, section) or self.enabled end
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s:option(Flag, "enable_vlan", translate("Enable VLAN functionality"))
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.cfgvalue = function(self, section) return Flag.cfgvalue(self, section) or self.enabled end
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if enable_vlan4k then
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s:option(Flag, "enable_vlan4k", translate("Enable 4K VLANs"))
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end
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s:option(Flag, "reset", translate("Reset switch during setup"))
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.cfgvalue = function(self, section) return Flag.cfgvalue(self, section) or self.enabled end
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-- VLAN table
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s = m:section(TypedSection, "switch_vlan", translatef("VLANs on %q", switch_name))
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s.template = "cbi/tblsection"
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s.addremove = true
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s.anonymous = true
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-- Override cfgsections callback to enforce row ordering by vlan id.
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s.cfgsections = function(self)
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local osections = TypedSection.cfgsections(self)
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local sections = { }
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local section
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for _, section in luci.util.spairs(
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osections,
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function(a, b)
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return (tonumber(m.uci:get("network", osections[a], has_vlan4k or "vlan")) or 9999)
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< (tonumber(m.uci:get("network", osections[b], has_vlan4k or "vlan")) or 9999)
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end
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) do
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sections[#sections+1] = section
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end
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return sections
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end
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-- When creating a new vlan, preset it with the highest found vid + 1.
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-- Repopulate the PVID choice lists afterwards.
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s.create = function(self, section)
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local sid = TypedSection.create(self, section)
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local max_nr = 0
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local max_id = 0
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m.uci:foreach("network", "switch_vlan",
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function(s)
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local nr = tonumber(s.vlan)
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local id = has_vlan4k and tonumber(s[has_vlan4k])
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if nr ~= nil and nr > max_nr then max_nr = nr end
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if id ~= nil and id > max_id then max_id = id end
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end)
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m.uci:set("network", sid, "vlan", max_nr + 1)
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if has_vlan4k then
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m.uci:set("network", sid, has_vlan4k, max_id + 1)
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end
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-- add newly created vlan to the pvid choice list
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populate_pvids()
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return sid
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end
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-- Repopulate PVId choice lists if a vlan gets removed.
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s.remove = function(self, section)
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local rv = TypedSection.remove(self, section)
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-- repopulate pvid choices
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populate_pvids()
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return rv
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end
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local port_opts = { }
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local untagged = { }
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-- Parse current tagging state from the "ports" option.
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local portvalue = function(self, section)
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local pt
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for pt in (m.uci:get("network", section, "ports") or ""):gmatch("%w+") do
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local pc, tu = pt:match("^(%d+)([tu]*)")
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if pc == self.option then return (#tu > 0) and tu or "u" end
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end
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return ""
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end
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-- Validate port tagging. Ensure that a port is only untagged once,
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-- bail out if not.
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local portvalidate = function(self, value, section)
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-- ensure that the ports appears untagged only once
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if value == "u" then
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if not untagged[self.option] then
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untagged[self.option] = true
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else
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return nil,
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translatef("Port %d is untagged in multiple VLANs!", tonumber(self.option) + 1)
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end
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end
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return value
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end
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local vid = s:option(Value, has_vlan4k or "vlan", "VLAN ID")
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vid.rmempty = false
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vid.forcewrite = true
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-- Validate user provided VLAN ID, make sure its within the bounds
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-- allowed by the switch.
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vid.validate = function(self, value, section)
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local v = tonumber(value)
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local m = has_vlan4k and 4094 or (num_vlans - 1)
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if v ~= nil and v > 0 and v <= m then
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return value
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else
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return nil,
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translatef("Invalid VLAN ID given! Only IDs between %d and %d are allowed.", 1, m)
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end
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end
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-- When writing the "vid" or "vlan" option, serialize the port states
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-- as well and write them as "ports" option to uci.
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vid.write = function(self, section, value)
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local o
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local p = { }
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for _, o in ipairs(port_opts) do
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local v = o:formvalue(section)
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if v == "t" then
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p[#p+1] = o.option .. v
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elseif v == "u" then
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p[#p+1] = o.option
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end
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end
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m.uci:set("network", section, "ports", table.concat(p, " "))
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return Value.write(self, section, value)
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end
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-- Fallback to "vlan" option if "vid" option is supported but unset.
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vid.cfgvalue = function(self, section)
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return m.uci:get("network", section, has_vlan4k or "vlan")
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or m.uci:get("network", section, "vlan")
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end
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-- Build per-port off/untagged/tagged choice lists.
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local pt
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for pt = 0, num_ports - 1 do
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local po = s:option(ListValue, tostring(pt),
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(pt == cpu_port) and translate("CPU") or translatef("Port %d", (pt + 1)))
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po:value("", translate("off"))
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po:value("u" % pt, translate("untagged"))
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po:value("t" % pt, translate("tagged"))
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po.cfgvalue = portvalue
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po.validate = portvalidate
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po.write = function() end
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port_opts[#port_opts+1] = po
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end
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-- Does this switch support PVIDs?
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if has_ptpvid then
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-- Spawn a "virtual" section. We just attach it to the global
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-- switch section here, the overrides below take care of writing
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-- the actual values to the correct uci sections.
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s = m:section(TypedSection, "switch",
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translatef("Port PVIDs on %q", switch_name),
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translate("Port <abbr title=\"Primary VLAN IDs\">PVIDs</abbr> specify " ..
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"the default VLAN ID added to received untagged frames."))
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s.template = "cbi/tblsection"
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s.addremove = false
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s.anonymous = true
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-- Build port list, store pointers to the option objects in the
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-- pvid_opts array so that other callbacks can repopulate their
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-- choice lists.
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local pt
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for pt = 0, num_ports - 1 do
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local po = s:option(ListValue, tostring(pt),
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(pt == cpu_port) and translate("CPU") or translatef("Port %d", (pt + 1)))
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-- When cbi queries the current config value for this post,
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-- lookup the associated switch_port section (if any) and
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-- return its "pvid" or "vlan" option value.
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po.cfgvalue = function(self, section)
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local val
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m.uci:foreach("network", "switch_port",
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function(s)
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if s.port == self.option then
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val = s[has_ptpvid]
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return false
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end
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end)
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return val
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end
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-- On write, find the actual switch_port section associated
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-- to this port and set the value there. Create a new
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-- switch_port section for this port if there is none yet.
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po.write = function(self, section, value)
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local found = false
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m.uci:foreach("network", "switch_port",
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function(s)
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if s.port == self.option then
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m.uci:set("network", s['.name'], has_ptpvid, value)
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found = true
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return false
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end
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end)
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if not found then
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m.uci:section("network", "switch_port", nil, {
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["port"] = self.option,
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[has_ptpvid] = value
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})
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end
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end
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-- If the user cleared the PVID value on this port, find
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-- the associated switch_port section and clear it.
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-- If the section does not contain any other unrelated
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-- options (like led or blinkrate) then remove it completely,
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-- else just clear out the "pvid" option.
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po.remove = function(self, section)
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m.uci:foreach("network", "switch_port",
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function(s)
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if s.port == self.option then
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local k, found
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local empty = true
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for k, _ in pairs(s) do
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if k:sub(1,1) ~= "." and k ~= "port" and k ~= has_ptpvid then
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empty = false
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break
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end
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end
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if empty then
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m.uci:delete("network", s['.name'])
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else
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m.uci:delete("network", s['.name'], has_ptpvid)
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end
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return false
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end
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end)
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end
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-- The referenced VLAN might just have been removed, simply
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-- return "" (none) in this case to avoid triggering a
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-- validation error.
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po.validate = function(...)
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return ListValue.validate(...) or ""
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end
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pvid_opts[#pvid_opts+1] = po
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end
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populate_pvids()
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end
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end
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)
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return m
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