305 lines
8.6 KiB
Lua
305 lines
8.6 KiB
Lua
-- Copyright 2008 Steven Barth <steven@midlink.org>
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-- Copyright 2010-2011 Jo-Philipp Wich <jow@openwrt.org>
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-- Licensed to the public under the Apache License 2.0.
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m = Map("network", translate("Switch"), translate("The network ports on this device 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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local fs = require "nixio.fs"
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local switches = { }
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m.uci:foreach("network", "switch",
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function(x)
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local sid = x['.name']
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local switch_name = x.name or sid
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local has_vlan = nil
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local has_learn = nil
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local has_vlan4k = nil
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local has_jumbo3 = nil
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local has_mirror = nil
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local min_vid = 0
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local max_vid = 16
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local num_vlans = 16
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local cpu_port = tonumber(fs.readfile("/proc/switch/eth0/cpuport") or 5)
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local num_ports = cpu_port + 1
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local switch_title
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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("cpu @") then
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switch_title = line:match("^switch%d: %w+%((.-)%)")
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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 6
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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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min_vid = 1
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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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elseif line:match(": enable_vlan4k") then
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enable_vlan4k = true
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elseif line:match(": enable_vlan") then
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has_vlan = "enable_vlan"
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elseif line:match(": enable_learning") then
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has_learn = "enable_learning"
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elseif line:match(": enable_mirror_rx") then
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has_mirror = "enable_mirror_rx"
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elseif line:match(": max_length") then
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has_jumbo3 = "max_length"
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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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-- Switch properties
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s = m:section(NamedSection, x['.name'], "switch",
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switch_title and translatef("Switch %q (%s)", switch_name, switch_title)
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or translatef("Switch %q", switch_name))
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s.addremove = false
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if has_vlan then
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s:option(Flag, has_vlan, translate("Enable VLAN functionality"))
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end
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if has_learn then
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x = s:option(Flag, has_learn, translate("Enable learning and aging"))
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x.default = x.enabled
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end
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if has_jumbo3 then
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x = s:option(Flag, has_jumbo3, translate("Enable Jumbo Frame passthrough"))
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x.enabled = "3"
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x.rmempty = true
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end
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-- Does this switch support port mirroring?
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if has_mirror then
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s:option(Flag, "enable_mirror_rx", translate("Enable mirroring of incoming packets"))
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s:option(Flag, "enable_mirror_tx", translate("Enable mirroring of outgoing packets"))
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local sp = s:option(ListValue, "mirror_source_port", translate("Mirror source port"))
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local mp = s:option(ListValue, "mirror_monitor_port", translate("Mirror monitor port"))
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local pt
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for pt = 0, num_ports - 1 do
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local name
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name = (pt == cpu_port) and translate("CPU") or translatef("Port %d", pt)
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sp:value(pt, name)
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mp:value(pt, name)
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end
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end
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-- VLAN table
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s = m:section(TypedSection, "switch_vlan",
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switch_title and translatef("VLANs on %q (%s)", switch_name, switch_title)
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or 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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-- Filter by switch
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s.filter = function(self, section)
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local device = m:get(section, "device")
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return (device and device == switch_name)
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end
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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:get(osections[a], has_vlan4k or "vlan")) or 9999)
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< (tonumber(m:get(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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s.create = function(self, section, origin)
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-- Filter by switch
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if m:get(origin, "device") ~= switch_name then
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return
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end
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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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if s.device == switch_name then
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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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end)
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m:set(sid, "device", switch_name)
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m:set(sid, "vlan", max_nr + 1)
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if has_vlan4k then
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m:set(sid, has_vlan4k, max_id + 1)
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end
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return sid
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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:get(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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elseif min_vid > 0 or tonumber(self.option) ~= cpu_port then -- enable multiple untagged cpu ports due to weird broadcom default setup
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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", "<div id='portstatus-%s'></div>" % switch_name)
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local mx_vid = has_vlan4k and 4094 or (num_vlans - 1)
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vid.rmempty = false
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vid.forcewrite = true
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vid.vlan_used = { }
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vid.datatype = "and(uinteger,range("..min_vid..","..mx_vid.."))"
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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 >= min_vid and v <= m then
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if not self.vlan_used[v] then
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self.vlan_used[v] = true
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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 unique IDs are allowed")
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end
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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.", min_vid, 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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if enable_vlan4k then
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m:set(sid, "enable_vlan4k", "1")
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end
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m:set(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:get(section, has_vlan4k or "vlan")
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or m:get(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 title
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if pt == cpu_port then
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title = translate("CPU")
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else
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title = translatef("Port %d", pt)
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end
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local po = s:option(ListValue, tostring(pt), title)
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po:value("", translate("off"))
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po:value("u", translate("untagged"))
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po:value("t", 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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switches[#switches+1] = switch_name
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end
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)
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-- Switch status template
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s = m:section(SimpleSection)
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s.template = "admin_network/switch_status"
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s.switches = switches
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return m
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