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setup.lua
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setup.lua
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module(..., package.seeall)
local config = require("core.config")
local manager = require("lib.ptree.ptree")
local PcapFilter = require("apps.packet_filter.pcap_filter").PcapFilter
local V4V6 = require("apps.lwaftr.V4V6").V4V6
local VirtioNet = require("apps.virtio_net.virtio_net").VirtioNet
local lwaftr = require("apps.lwaftr.lwaftr")
local lwutil = require("apps.lwaftr.lwutil")
local basic_apps = require("apps.basic.basic_apps")
local pcap = require("apps.pcap.pcap")
local ipv4_echo = require("apps.ipv4.echo")
local ipv4_fragment = require("apps.ipv4.fragment")
local ipv4_reassemble = require("apps.ipv4.reassemble")
local arp = require("apps.ipv4.arp")
local ipv6_echo = require("apps.ipv6.echo")
local ipv6_fragment = require("apps.ipv6.fragment")
local ipv6_reassemble = require("apps.ipv6.reassemble")
local ndp = require("apps.lwaftr.ndp")
local vlan = require("apps.vlan.vlan")
local pci = require("lib.hardware.pci")
local cltable = require("lib.cltable")
local ipv4 = require("lib.protocol.ipv4")
local ipv6 = require("lib.protocol.ipv6")
local ethernet = require("lib.protocol.ethernet")
local ipv4_ntop = require("lib.yang.util").ipv4_ntop
local binary = require("lib.yang.binary")
local S = require("syscall")
local engine = require("core.app")
local lib = require("core.lib")
local shm = require("core.shm")
local yang = require("lib.yang.yang")
local alarms = require("lib.yang.alarms")
local alarm_notification = false
local capabilities = {
['ietf-softwire-br']={feature={'binding-mode'}},
['ietf-alarms']={feature={'operator-actions', 'alarm-shelving', 'alarm-history'}},
}
require('lib.yang.schema').set_default_capabilities(capabilities)
function read_config(filename)
return yang.load_configuration(filename,
{schema_name=lwaftr.LwAftr.yang_schema})
end
local function convert_ipv4(addr)
if addr ~= nil then return ipv4:pton(ipv4_ntop(addr)) end
end
-- Checks the existence of PCI devices.
local function validate_pci_devices(devices)
for _, address in pairs(devices) do
assert(lwutil.nic_exists(address),
("Could not locate PCI device '%s'"):format(address))
end
end
function lwaftr_app(c, conf)
assert(type(conf) == 'table')
local function append(t, elem) table.insert(t, elem) end
local function prepend(t, elem) table.insert(t, 1, elem) end
local device, id, queue = lwutil.parse_instance(conf)
-- Global interfaces
local gexternal_interface = conf.softwire_config.external_interface
local ginternal_interface = conf.softwire_config.internal_interface
-- Instance specific interfaces
local iexternal_interface = queue.external_interface
local iinternal_interface = queue.internal_interface
config.app(c, "reassemblerv4", ipv4_reassemble.Reassembler,
{ max_concurrent_reassemblies =
gexternal_interface.reassembly.max_packets,
max_fragments_per_reassembly =
gexternal_interface.reassembly.max_fragments_per_packet })
config.app(c, "reassemblerv6", ipv6_reassemble.Reassembler,
{ max_concurrent_reassemblies =
ginternal_interface.reassembly.max_packets,
max_fragments_per_reassembly =
ginternal_interface.reassembly.max_fragments_per_packet })
config.app(c, "icmpechov4", ipv4_echo.ICMPEcho,
{ address = convert_ipv4(iexternal_interface.ip) })
config.app(c, "icmpechov6", ipv6_echo.ICMPEcho,
{ address = iinternal_interface.ip })
config.app(c, "lwaftr", lwaftr.LwAftr, conf)
config.app(c, "fragmenterv4", ipv4_fragment.Fragmenter,
{ mtu=gexternal_interface.mtu })
config.app(c, "fragmenterv6", ipv6_fragment.Fragmenter,
{ mtu=ginternal_interface.mtu })
config.app(c, "ndp", ndp.NDP,
{ self_ip = iinternal_interface.ip,
self_mac = iinternal_interface.mac,
next_mac = iinternal_interface.next_hop.mac,
shared_next_mac_key = "group/"..device.."-ipv6-next-mac",
next_ip = iinternal_interface.next_hop.ip,
alarm_notification = conf.alarm_notification })
config.app(c, "arp", arp.ARP,
{ self_ip = convert_ipv4(iexternal_interface.ip),
self_mac = iexternal_interface.mac,
next_mac = iexternal_interface.next_hop.mac,
shared_next_mac_key = "group/"..device.."-ipv4-next-mac",
next_ip = convert_ipv4(iexternal_interface.next_hop.ip),
alarm_notification = conf.alarm_notification })
if conf.alarm_notification then
local lwaftr = require('program.lwaftr.alarms')
alarms.default_alarms(lwaftr.alarms)
end
local preprocessing_apps_v4 = { "reassemblerv4" }
local preprocessing_apps_v6 = { "reassemblerv6" }
local postprocessing_apps_v4 = { "fragmenterv4" }
local postprocessing_apps_v6 = { "fragmenterv6" }
if gexternal_interface.ingress_filter then
config.app(c, "ingress_filterv4", PcapFilter,
{ filter = gexternal_interface.ingress_filter,
alarm_type_qualifier='ingress-v4'})
append(preprocessing_apps_v4, "ingress_filterv4")
end
if ginternal_interface.ingress_filter then
config.app(c, "ingress_filterv6", PcapFilter,
{ filter = ginternal_interface.ingress_filter,
alarm_type_qualifier='ingress-v6'})
append(preprocessing_apps_v6, "ingress_filterv6")
end
if gexternal_interface.egress_filter then
config.app(c, "egress_filterv4", PcapFilter,
{ filter = gexternal_interface.egress_filter,
alarm_type_qualifier='egress-v4'})
prepend(postprocessing_apps_v4, "egress_filterv4")
end
if ginternal_interface.egress_filter then
config.app(c, "egress_filterv6", PcapFilter,
{ filter = ginternal_interface.egress_filter,
alarm_type_qualifier='egress-v6'})
prepend(postprocessing_apps_v6, "egress_filterv6")
end
-- Add a special hairpinning queue to the lwaftr app.
config.link(c, "lwaftr.hairpin_out -> lwaftr.hairpin_in")
append(preprocessing_apps_v4, { name = "arp", input = "south", output = "north" })
append(preprocessing_apps_v4, { name = "icmpechov4", input = "south", output = "north" })
prepend(postprocessing_apps_v4, { name = "icmpechov4", input = "north", output = "south" })
prepend(postprocessing_apps_v4, { name = "arp", input = "north", output = "south" })
append(preprocessing_apps_v6, { name = "ndp", input = "south", output = "north" })
append(preprocessing_apps_v6, { name = "icmpechov6", input = "south", output = "north" })
prepend(postprocessing_apps_v6, { name = "icmpechov6", input = "north", output = "south" })
prepend(postprocessing_apps_v6, { name = "ndp", input = "north", output = "south" })
set_preprocessors(c, preprocessing_apps_v4, "lwaftr.v4")
set_preprocessors(c, preprocessing_apps_v6, "lwaftr.v6")
set_postprocessors(c, "lwaftr.v6", postprocessing_apps_v6)
set_postprocessors(c, "lwaftr.v4", postprocessing_apps_v4)
end
local function link_apps(c, apps)
for i=1, #apps - 1 do
local output, input = "output", "input"
local src, dst = apps[i], apps[i+1]
if type(src) == "table" then
src, output = src["name"], src["output"]
end
if type(dst) == "table" then
dst, input = dst["name"], dst["input"]
end
config.link(c, ("%s.%s -> %s.%s"):format(src, output, dst, input))
end
end
function set_preprocessors(c, apps, dst)
assert(type(apps) == "table")
link_apps(c, apps)
local last_app, output = apps[#apps], "output"
if type(last_app) == "table" then
last_app, output = last_app.name, last_app.output
end
config.link(c, ("%s.%s -> %s"):format(last_app, output, dst))
end
function set_postprocessors(c, src, apps)
assert(type(apps) == "table")
local first_app, input = apps[1], "input"
if type(first_app) == "table" then
first_app, input = first_app.name, first_app.input
end
config.link(c, ("%s -> %s.%s"):format(src, first_app, input))
link_apps(c, apps)
end
local function link_source(c, v4_in, v6_in)
config.link(c, v4_in..' -> reassemblerv4.input')
config.link(c, v6_in..' -> reassemblerv6.input')
end
local function link_sink(c, v4_out, v6_out)
config.link(c, 'fragmenterv4.output -> '..v4_out)
config.link(c, 'fragmenterv6.output -> '..v6_out)
end
function load_kernel_iface (c, conf, v4_nic_name, v6_nic_name)
local RawSocket = require("apps.socket.raw").RawSocket
local v6_iface, id, queue = lwutil.parse_instance(conf)
local v4_iface = queue.external_interface.dev_info
local dev_info = {rx = "rx", tx = "tx"}
lwaftr_app(c, conf, v6_iface)
config.app(c, v4_nic_name, RawSocket, v4_iface)
config.app(c, v6_nic_name, RawSocket, v6_iface)
link_source(c, v4_nic_name..'.'..dev_info.tx, v6_nic_name..'.'..dev_info.tx)
link_sink(c, v4_nic_name..'.'..dev_info.rx, v6_nic_name..'.'..dev_info.rx)
end
function load_phy(c, conf, v4_nic_name, v6_nic_name, ring_buffer_size)
local v6_pci, id, queue = lwutil.parse_instance(conf)
local v4_pci = queue.external_interface.device
local v4_info = pci.device_info(v4_pci)
local v6_info = pci.device_info(v6_pci)
validate_pci_devices({v4_pci, v6_pci})
lwaftr_app(c, conf, v4_pci)
config.app(c, v4_nic_name, require(v4_info.driver).driver, {
pciaddr=v4_pci,
vmdq=true, -- Needed to enable MAC filtering/stamping.
rxq=id,
txq=id,
poolnum=0,
vlan=queue.external_interface.vlan_tag,
rxcounter=id,
txcounter=id,
ring_buffer_size=ring_buffer_size,
macaddr=ethernet:ntop(queue.external_interface.mac)})
config.app(c, v6_nic_name, require(v6_info.driver).driver, {
pciaddr=v6_pci,
vmdq=true, -- Needed to enable MAC filtering/stamping.
rxq=id,
txq=id,
poolnum=0,
vlan=queue.internal_interface.vlan_tag,
rxcounter=id,
txcounter=id,
ring_buffer_size=ring_buffer_size,
macaddr = ethernet:ntop(queue.internal_interface.mac)})
link_source(c, v4_nic_name..'.'..v4_info.tx, v6_nic_name..'.'..v6_info.tx)
link_sink(c, v4_nic_name..'.'..v4_info.rx, v6_nic_name..'.'..v6_info.rx)
end
function load_xdp(c, conf, v4_nic_name, v6_nic_name, ring_buffer_size)
local v6_device, id, queue = lwutil.parse_instance(conf)
local v4_device = queue.external_interface.device
assert(lib.is_iface(v4_device), v4_nic_name..": "..v4_device.." is not a Linux interface")
assert(lib.is_iface(v6_device), v6_nic_name..": "..v6_device.." is not a Linux interface")
assert(not lwutil.is_on_a_stick(v6_device, queue),
"--xdp does not support on-a-stick configuration")
lwaftr_app(c, conf)
config.app(c, v4_nic_name, require("apps.xdp.xdp").driver, {
ifname=v4_device,
queue=id})
config.app(c, v6_nic_name, require("apps.xdp.xdp").driver, {
ifname=v6_device,
queue=id})
local v4_src, v6_src = v4_nic_name..'.output', v6_nic_name..'.output'
local v4_sink, v6_sink = v4_nic_name..'.input', v6_nic_name..'.input'
-- Linux removes VLAN tag, but we have to tag outgoing packets
if queue.external_interface.vlan_tag then
config.app(c, "tagv4", vlan.Tagger,
{ tag=queue.external_interface.vlan_tag })
config.link(c, "tagv4.output -> "..v4_sink)
v4_sink = "tagv4.input"
end
if queue.internal_interface.vlan_tag then
config.app(c, "tagv6", vlan.Tagger,
{ tag=queue.internal_interface.vlan_tag })
config.link(c, "tagv6.output -> "..v6_sink)
v6_sink = "tagv6.input"
end
link_source(c, v4_src, v6_src)
link_sink(c, v4_sink, v6_sink)
end
function xdp_ifsetup(conf)
for idevice, instance in pairs(conf.softwire_config.instance) do
local icfg, ecfg
local nqueues = 0
for _, queue in pairs(instance.queue) do
nqueues = nqueues + 1
if not icfg then icfg = queue.internal_interface
else assert(lib.equal(icfg, queue.internal_interface)) end
if not ecfg then ecfg = queue.external_interface
else assert(lib.equal(ecfg, queue.external_interface)) end
end
for qid in pairs(instance.queue) do
assert(qid < nqueues)
end
local function cmd(...)
local cmd
for _, part in ipairs({...}) do
if not cmd then cmd = part
else cmd = cmd.." "..part end
end
print("shell:", cmd)
assert(os.execute(cmd))
end
local function ifsetup(ifname, cfg, opts, ip_ntop)
cmd('ip link set down', 'dev', ifname)
cmd('ip address flush', 'dev', ifname)
cmd('ip link set address', ethernet:ntop(cfg.mac), 'dev', ifname)
cmd('ip link set arp off', 'dev', ifname)
cmd('ip link set broadcast', "ff:ff:ff:ff:ff:ff", 'dev', ifname)
cmd('ip link set multicast on', 'dev', ifname)
cmd('ip link set mtu', opts.mtu, 'dev', ifname)
cmd('ip address add', ip_ntop(cfg.ip), 'dev', ifname)
cmd('ethtool --set-channels', ifname, 'combined', nqueues)
cmd('ip link set up', 'dev', ifname)
end
print("Configuring internal interface for XDP...")
ifsetup(idevice, icfg, conf.softwire_config.internal_interface,
function (ip) return ipv6:ntop(ip) end)
print("Configuring external interface for XDP...")
ifsetup(ecfg.device, ecfg, conf.softwire_config.external_interface,
ipv4_ntop)
end
end
function load_on_a_stick_kernel_iface (c, conf, args)
local RawSocket = require("apps.socket.raw").RawSocket
local iface, id, queue = lwutil.parse_instance(conf)
local device = {tx = 'tx', rx = 'rx'}
lwaftr_app(c, conf, iface)
local v4_nic_name, v6_nic_name = args.v4_nic_name, args.v6_nic_name
local v4v6, mirror = args.v4v6, args.mirror
if v4v6 then
assert(queue.external_interface.vlan_tag == queue.internal_interface.vlan_tag)
config.app(c, 'nic', RawSocket, iface)
if mirror then
local Tap = require("apps.tap.tap").Tap
config.app(c, 'mirror', Tap, {name=mirror})
config.app(c, v4v6, V4V6, {mirror=true})
config.link(c, v4v6..'.mirror -> mirror.input')
else
config.app(c, v4v6, V4V6)
end
config.link(c, 'nic.'..device.tx..' -> '..v4v6..'.input')
config.link(c, v4v6..'.output -> nic.'..device.rx)
link_source(c, v4v6..'.v4', v4v6..'.v6')
link_sink(c, v4v6..'.v4', v4v6..'.v6')
else
config.app(c, v4_nic_name, RawSocket, iface)
config.app(c, v6_nic_name, RawSocket, iface)
link_source(c, v4_nic_name..'.'..device.tx, v6_nic_name..'.'..device.tx)
link_sink(c, v4_nic_name..'.'..device.rx, v6_nic_name..'.'..device.rx)
end
end
function load_on_a_stick(c, conf, args)
local pciaddr, id, queue = lwutil.parse_instance(conf)
local device = pci.device_info(pciaddr)
local driver = require(device.driver).driver
validate_pci_devices({pciaddr})
lwaftr_app(c, conf, pciaddr)
local v4_nic_name, v6_nic_name, v4v6, mirror = args.v4_nic_name,
args.v6_nic_name, args.v4v6, args.mirror
local ext = queue.external_interface
local int = queue.internal_interface
if ext.vlan_tag ~= int.vlan_tag then
assert(ethernet:ntop(ext.mac) ~= ethernet:ntop(int.mac),
"When using different VLAN tags, external and internal MAC "..
"addresses must be different too")
end
if v4v6 then
assert(queue.external_interface.vlan_tag == queue.internal_interface.vlan_tag)
assert(ethernet:ntop(queue.external_interface.mac) ==
ethernet:ntop(queue.internal_interface.mac))
config.app(c, 'nic', driver, {
pciaddr = pciaddr,
vmdq=true, -- Needed to enable MAC filtering/stamping.
rxq=id,
txq=id,
poolnum=0,
vlan=queue.external_interface.vlan_tag,
ring_buffer_size=args.ring_buffer_size,
rxcounter = id,
txcounter = id,
macaddr = ethernet:ntop(queue.external_interface.mac)})
if mirror then
local Tap = require("apps.tap.tap").Tap
local ifname = mirror
config.app(c, 'tap', Tap, ifname)
config.app(c, v4v6, V4V6, {
mirror = true
})
config.link(c, v4v6..'.mirror -> tap.input')
else
config.app(c, v4v6, V4V6)
end
config.link(c, 'nic.'..device.tx..' -> '..v4v6..'.input')
config.link(c, v4v6..'.output -> nic.'..device.rx)
link_source(c, v4v6..'.v4', v4v6..'.v6')
link_sink(c, v4v6..'.v4', v4v6..'.v6')
else
config.app(c, v4_nic_name, driver, {
pciaddr = pciaddr,
vmdq=true, -- Needed to enable MAC filtering/stamping.
rxq=id,
txq=id,
poolnum=0,
vlan=queue.external_interface.vlan_tag,
ring_buffer_size=args.ring_buffer_size,
rxcounter = id,
txcounter = id,
macaddr = ethernet:ntop(queue.external_interface.mac)})
config.app(c, v6_nic_name, driver, {
pciaddr = pciaddr,
vmdq=true, -- Needed to enable MAC filtering/stamping.
rxq=id,
txq=id,
poolnum=1,
vlan=queue.internal_interface.vlan_tag,
ring_buffer_size=args.ring_buffer_size,
rxcounter = id,
txcounter = id,
macaddr = ethernet:ntop(queue.internal_interface.mac)})
link_source(c, v4_nic_name..'.'..device.tx, v6_nic_name..'.'..device.tx)
link_sink(c, v4_nic_name..'.'..device.rx, v6_nic_name..'.'..device.rx)
end
end
function load_virt(c, conf, v4_nic_name, v6_nic_name)
local v6_pci, id, queue = lwutil.parse_instance(conf)
local v4_pci = queue.external_device.device
lwaftr_app(c, conf, device)
validate_pci_devices({v4_pci, v6_pci})
config.app(c, v4_nic_name, VirtioNet, {
pciaddr=v4_pci,
vlan=queue.external_interface.vlan_tag,
macaddr=ethernet:ntop(queue.external_interface.mac)})
config.app(c, v6_nic_name, VirtioNet, {
pciaddr=v6_pci,
vlan=queue.internal_interface.vlan_tag,
macaddr = ethernet:ntop(queue.internal_interface.mac)})
link_source(c, v4_nic_name..'.tx', v6_nic_name..'.tx')
link_sink(c, v4_nic_name..'.rx', v6_nic_name..'.rx')
end
function load_bench(c, conf, v4_pcap, v6_pcap, v4_sink, v6_sink)
local device, id, queue = lwutil.parse_instance(conf)
lwaftr_app(c, conf, device)
config.app(c, "capturev4", pcap.PcapReader, v4_pcap)
config.app(c, "capturev6", pcap.PcapReader, v6_pcap)
config.app(c, "repeaterv4", basic_apps.Repeater)
config.app(c, "repeaterv6", basic_apps.Repeater)
if queue.external_interface.vlan_tag then
config.app(c, "untagv4", vlan.Untagger,
{ tag=queue.external_interface.vlan_tag })
end
if queue.internal_interface.vlan_tag then
config.app(c, "untagv6", vlan.Untagger,
{ tag=queue.internal_interface.vlan_tag })
end
config.app(c, v4_sink, basic_apps.Sink)
config.app(c, v6_sink, basic_apps.Sink)
config.link(c, "capturev4.output -> repeaterv4.input")
config.link(c, "capturev6.output -> repeaterv6.input")
local v4_src, v6_src = 'repeaterv4.output', 'repeaterv6.output'
if queue.external_interface.vlan_tag then
config.link(c, v4_src.." -> untagv4.input")
v4_src = "untagv4.output"
end
if queue.internal_interface.vlan_tag then
config.link(c, v6_src.." -> untagv6.input")
v6_src = "untagv6.output"
end
link_source(c, v4_src, v6_src)
link_sink(c, v4_sink..'.input', v6_sink..'.input')
end
function load_check_on_a_stick (c, conf, inv4_pcap, inv6_pcap, outv4_pcap, outv6_pcap)
local device, id, queue = lwutil.parse_instance(conf)
lwaftr_app(c, conf, device)
config.app(c, "capturev4", pcap.PcapReader, inv4_pcap)
config.app(c, "capturev6", pcap.PcapReader, inv6_pcap)
config.app(c, "output_filev4", pcap.PcapWriter, outv4_pcap)
config.app(c, "output_filev6", pcap.PcapWriter, outv6_pcap)
if queue.external_interface.vlan_tag then
config.app(c, "untagv4", vlan.Untagger,
{ tag=queue.external_interface.vlan_tag })
config.app(c, "tagv4", vlan.Tagger,
{ tag=queue.external_interface.vlan_tag })
end
if queue.internal_interface.vlan_tag then
config.app(c, "untagv6", vlan.Untagger,
{ tag=queue.internal_interface.vlan_tag })
config.app(c, "tagv6", vlan.Tagger,
{ tag=queue.internal_interface.vlan_tag })
end
config.app(c, 'v4v6', V4V6)
config.app(c, 'splitter', V4V6)
config.app(c, 'join', basic_apps.Join)
local sources = { "v4v6.v4", "v4v6.v6" }
local sinks = { "v4v6.v4", "v4v6.v6" }
if queue.external_interface.vlan_tag then
config.link(c, "capturev4.output -> untagv4.input")
config.link(c, "capturev6.output -> untagv6.input")
config.link(c, "untagv4.output -> join.in1")
config.link(c, "untagv6.output -> join.in2")
config.link(c, "join.output -> v4v6.input")
config.link(c, "v4v6.output -> splitter.input")
config.link(c, "splitter.v4 -> tagv4.input")
config.link(c, "splitter.v6 -> tagv6.input")
config.link(c, "tagv4.output -> output_filev4.input")
config.link(c, "tagv6.output -> output_filev6.input")
else
config.link(c, "capturev4.output -> join.in1")
config.link(c, "capturev6.output -> join.in2")
config.link(c, "join.output -> v4v6.input")
config.link(c, "v4v6.output -> splitter.input")
config.link(c, "splitter.v4 -> output_filev4.input")
config.link(c, "splitter.v6 -> output_filev6.input")
end
link_source(c, unpack(sources))
link_sink(c, unpack(sinks))
end
function load_check(c, conf, inv4_pcap, inv6_pcap, outv4_pcap, outv6_pcap)
local device, id, queue = lwutil.parse_instance(conf)
lwaftr_app(c, conf, device)
config.app(c, "capturev4", pcap.PcapReader, inv4_pcap)
config.app(c, "capturev6", pcap.PcapReader, inv6_pcap)
config.app(c, "output_filev4", pcap.PcapWriter, outv4_pcap)
config.app(c, "output_filev6", pcap.PcapWriter, outv6_pcap)
if queue.external_interface.vlan_tag then
config.app(c, "untagv4", vlan.Untagger,
{ tag=queue.external_interface.vlan_tag })
config.app(c, "tagv4", vlan.Tagger,
{ tag=queue.external_interface.vlan_tag })
end
if queue.internal_interface.vlan_tag then
config.app(c, "untagv6", vlan.Untagger,
{ tag=queue.internal_interface.vlan_tag })
config.app(c, "tagv6", vlan.Tagger,
{ tag=queue.internal_interface.vlan_tag })
end
local sources = { "capturev4.output", "capturev6.output" }
local sinks = { "output_filev4.input", "output_filev6.input" }
if queue.external_interface.vlan_tag then
sources = { "untagv4.output", "untagv6.output" }
sinks = { "tagv4.input", "tagv6.input" }
config.link(c, "capturev4.output -> untagv4.input")
config.link(c, "capturev6.output -> untagv6.input")
config.link(c, "tagv4.output -> output_filev4.input")
config.link(c, "tagv6.output -> output_filev6.input")
end
link_source(c, unpack(sources))
link_sink(c, unpack(sinks))
end
function load_soak_test(c, conf, inv4_pcap, inv6_pcap)
local device, id, queue = lwutil.parse_instance(conf)
lwaftr_app(c, conf, device)
config.app(c, "capturev4", pcap.PcapReader, inv4_pcap)
config.app(c, "capturev6", pcap.PcapReader, inv6_pcap)
config.app(c, "loop_v4", basic_apps.Repeater)
config.app(c, "loop_v6", basic_apps.Repeater)
config.app(c, "sink", basic_apps.Sink)
if queue.external_interface.vlan_tag then
config.app(c, "untagv4", vlan.Untagger,
{ tag=queue.external_interface.vlan_tag })
config.app(c, "tagv4", vlan.Tagger,
{ tag=queue.external_interface.vlan_tag })
end
if queue.internal_interface.vlan_tag then
config.app(c, "untagv6", vlan.Untagger,
{ tag=queue.internal_interface.vlan_tag })
config.app(c, "tagv6", vlan.Tagger,
{ tag=queue.internal_interface.vlan_tag })
end
local sources = { "loop_v4.output", "loop_v6.output" }
local sinks = { "sink.v4", "sink.v6" }
config.link(c, "capturev4.output -> loop_v4.input")
config.link(c, "capturev6.output -> loop_v6.input")
if queue.external_interface.vlan_tag then
sources = { "untagv4.output", "untagv6.output" }
sinks = { "tagv4.input", "tagv6.input" }
config.link(c, "loop_v4.output -> untagv4.input")
config.link(c, "loop_v6.output -> untagv6.input")
config.link(c, "tagv4.output -> sink.v4")
config.link(c, "tagv6.output -> sink.v6")
end
link_source(c, unpack(sources))
link_sink(c, unpack(sinks))
end
function load_soak_test_on_a_stick (c, conf, inv4_pcap, inv6_pcap)
local device, id, queue = lwutil.parse_instance(conf)
lwaftr_app(c, conf, device)
config.app(c, "capturev4", pcap.PcapReader, inv4_pcap)
config.app(c, "capturev6", pcap.PcapReader, inv6_pcap)
config.app(c, "loop_v4", basic_apps.Repeater)
config.app(c, "loop_v6", basic_apps.Repeater)
config.app(c, "sink", basic_apps.Sink)
if queue.external_interface.vlan_tag then
config.app(c, "untagv4", vlan.Untagger,
{ tag=queue.external_interface.vlan_tag })
config.app(c, "tagv4", vlan.Tagger,
{ tag=queue.external_interface.vlan_tag })
end
if queue.internal_interface.vlan_tag then
config.app(c, "untagv6", vlan.Untagger,
{ tag=queue.internal_interface.vlan_tag })
config.app(c, "tagv6", vlan.Tagger,
{ tag=queue.internal_interface.vlan_tag })
end
config.app(c, 'v4v6', V4V6)
config.app(c, 'splitter', V4V6)
config.app(c, 'join', basic_apps.Join)
local sources = { "v4v6.v4", "v4v6.v6" }
local sinks = { "v4v6.v4", "v4v6.v6" }
config.link(c, "capturev4.output -> loop_v4.input")
config.link(c, "capturev6.output -> loop_v6.input")
if queue.external_interface.vlan_tag then
config.link(c, "loop_v4.output -> untagv4.input")
config.link(c, "loop_v6.output -> untagv6.input")
config.link(c, "untagv4.output -> join.in1")
config.link(c, "untagv6.output -> join.in2")
config.link(c, "join.output -> v4v6.input")
config.link(c, "v4v6.output -> splitter.input")
config.link(c, "splitter.v4 -> tagv4.input")
config.link(c, "splitter.v6 -> tagv6.input")
config.link(c, "tagv4.output -> sink.in1")
config.link(c, "tagv6.output -> sink.in2")
else
config.link(c, "loop_v4.output -> join.in1")
config.link(c, "loop_v6.output -> join.in2")
config.link(c, "join.output -> v4v6.input")
config.link(c, "v4v6.output -> splitter.input")
config.link(c, "splitter.v4 -> sink.in1")
config.link(c, "splitter.v6 -> sink.in2")
end
link_source(c, unpack(sources))
link_sink(c, unpack(sinks))
end
-- Produces configuration for each worker. Each queue on each device
-- will get its own worker process.
local function compute_worker_configs(conf)
local ret = {}
local copier = binary.config_copier_for_schema_by_name('snabb-softwire-v2')
local make_copy = copier(conf)
for device, queues in pairs(conf.softwire_config.instance) do
for id, _ in pairs(queues.queue) do
local worker_id = string.format('%s/%s', device, id)
local worker_config = make_copy()
local instance = worker_config.softwire_config.instance
for other_device, queues in pairs(conf.softwire_config.instance) do
if other_device ~= device then
instance[other_device] = nil
else
for other_id, _ in pairs(queues.queue) do
if other_id ~= id then
instance[device].queue[other_id] = nil
end
end
end
end
ret[worker_id] = worker_config
end
end
return ret
end
function ptree_manager(f, conf, manager_opts)
-- Claim the name if one is defined.
local function switch_names(config)
local currentname = engine.program_name
local name = config.softwire_config.name
-- Don't do anything if the name isn't set.
if name == nil then
return
end
local success, err = pcall(engine.claim_name, name)
if success == false then
-- Restore the previous name.
config.softwire_config.name = currentname
assert(success, err)
end
end
local function setup_fn(conf)
switch_names(conf)
local worker_app_graphs = {}
for worker_id, worker_config in pairs(compute_worker_configs(conf)) do
local app_graph = config.new()
worker_config.alarm_notification = true
f(app_graph, worker_config)
worker_app_graphs[worker_id] = app_graph
end
return worker_app_graphs
end
local initargs = {
setup_fn = setup_fn,
initial_configuration = conf,
schema_name = 'snabb-softwire-v2',
default_schema = 'ietf-softwire-br',
-- log_level="DEBUG"
}
for k, v in pairs(manager_opts or {}) do
assert(not initargs[k])
initargs[k] = v
end
return manager.new_manager(initargs)
end