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/*
* Copyright 2018-present Open Networking Foundation
* 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
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package common
import (
"flag"
"fmt"
"io/ioutil"
"net"
"strings"
"github.com/imdario/mergo"
log "github.com/sirupsen/logrus"
"gopkg.in/yaml.v2"
)
var tagAllocationValues = []string{
"unknown",
"shared",
"unique",
}
const (
BP_FORMAT_MEF = "mef"
BP_FORMAT_IETF = "ietf"
)
type TagAllocation int
func (t TagAllocation) String() string {
return tagAllocationValues[t]
}
func tagAllocationFromString(s string) (TagAllocation, error) {
for i, v := range tagAllocationValues {
if v == strings.TrimSpace(s) {
return TagAllocation(i), nil
}
}
log.WithFields(log.Fields{
"ValidValues": strings.Join(tagAllocationValues[1:], ", "),
}).Errorf("%s-is-not-a-valid-tag-allocation", s)
return TagAllocation(0), fmt.Errorf("%s-is-not-a-valid-tag-allocation", s)
}
const (
_ TagAllocation = iota
TagAllocationShared
TagAllocationUnique
)
type BBRCliOptions struct {
*GlobalConfig
BBSimIp string
BBSimPort string
BBSimApiPort string
LogFile string
}
type GlobalConfig struct {
BBSim BBSimConfig
Olt OltConfig
BBR BBRConfig
}
type OltConfig struct {
Model string `yaml:"model"`
Vendor string `yaml:"vendor"`
HardwareVersion string `yaml:"hardware_version"`
FirmwareVersion string `yaml:"firmware_version"`
DeviceId string `yaml:"device_id"`
DeviceSerialNumber string `yaml:"device_serial_number"`
PonPorts uint32 `yaml:"pon_ports"`
NniPorts uint32 `yaml:"nni_ports"`
NniSpeed uint32 `yaml:"nni_speed"`
OnusPonPort uint32 `yaml:"onus_per_port"`
Technology string `yaml:"technology"`
ID int `yaml:"id"`
OltRebootDelay int `yaml:"reboot_delay"`
PortStatsInterval int `yaml:"port_stats_interval"`
OmciResponseRate uint8 `yaml:"omci_response_rate"`
UniPorts uint32 `yaml:"uni_ports"`
PotsPorts uint32 `yaml:"pots_ports"`
}
type BBSimConfig struct {
ConfigFile string
ServiceConfigFile string
DhcpRetry bool `yaml:"dhcp_retry"`
AuthRetry bool `yaml:"auth_retry"`
LogLevel string `yaml:"log_level"`
LogCaller bool `yaml:"log_caller"`
Delay int `yaml:"delay"`
CpuProfile *string `yaml:"cpu_profile"`
OpenOltAddress string `yaml:"openolt_address"`
ApiAddress string `yaml:"api_address"`
RestApiAddress string `yaml:"rest_api_address"`
LegacyApiAddress string `yaml:"legacy_api_address"`
LegacyRestApiAddress string `yaml:"legacy_rest_api_address"`
SadisRestAddress string `yaml:"sadis_rest_address"`
SadisServer bool `yaml:"sadis_server"`
KafkaAddress string `yaml:"kafka_address"`
Events bool `yaml:"enable_events"`
ControlledActivation string `yaml:"controlled_activation"`
EnablePerf bool `yaml:"enable_perf"`
KafkaEventTopic string `yaml:"kafka_event_topic"`
DmiServerAddress string `yaml:"dmi_server_address"`
BandwidthProfileFormat string `yaml:"bp_format"`
}
type BBRConfig struct {
Log string `yaml:"log"`
LogLevel string `yaml:"log_level"`
LogCaller bool `yaml:"log_caller"`
}
type ServiceYaml struct {
Name string
CTag int `yaml:"c_tag"`
STag int `yaml:"s_tag"`
NeedsEapol bool `yaml:"needs_eapol"`
NeedsDhcp bool `yaml:"needs_dhcp"`
NeedsIgmp bool `yaml:"needs_igmp"`
NeedsPPPoE bool `yaml:"needs_pppoe"`
CTagAllocation string `yaml:"c_tag_allocation"`
STagAllocation string `yaml:"s_tag_allocation"`
TechnologyProfileID int `yaml:"tp_id"`
UniTagMatch int `yaml:"uni_tag_match"`
ConfigureMacAddress bool `yaml:"configure_mac_address"`
EnableMacLearning bool `yaml:"enable_mac_learning"`
UsPonCTagPriority uint8 `yaml:"us_pon_c_tag_priority"`
UsPonSTagPriority uint8 `yaml:"us_pon_s_tag_priority"`
DsPonCTagPriority uint8 `yaml:"ds_pon_c_tag_priority"`
DsPonSTagPriority uint8 `yaml:"ds_pon_s_tag_priority"`
}
type YamlServiceConfig struct {
Workflow string
Services []ServiceYaml `yaml:"services,flow"`
}
func (cfg *YamlServiceConfig) String() string {
str := fmt.Sprintf("[workflow: %s, Services: ", cfg.Workflow)
for _, s := range cfg.Services {
str = fmt.Sprintf("%s[", str)
str = fmt.Sprintf("%sname=%s, c_tag=%d, s_tag=%d, ",
str, s.Name, s.CTag, s.STag)
str = fmt.Sprintf("%sc_tag_allocation=%s, s_tag_allocation=%s, ",
str, s.CTagAllocation, s.STagAllocation)
str = fmt.Sprintf("%sneeds_eapol=%t, needs_dhcp=%t, needs_igmp=%t",
str, s.NeedsEapol, s.NeedsDhcp, s.NeedsIgmp)
str = fmt.Sprintf("%stp_id=%d, uni_tag_match=%d",
str, s.TechnologyProfileID, s.UniTagMatch)
str = fmt.Sprintf("%s]", str)
}
str = fmt.Sprintf("%s]", str)
return str
}
var (
Config *GlobalConfig
Services []ServiceYaml
)
// Load the BBSim configuration. This is a combination of CLI parameters and YAML files
// We proceed in this order:
// - Read CLI parameters
// - Using those we read the yaml files (config and services)
// - we merge the configuration (CLI has priority over yaml files)
func LoadConfig() {
Config = getDefaultOps()
cliConf := readCliParams()
yamlConf, err := loadBBSimConf(cliConf.BBSim.ConfigFile)
if err != nil {
log.WithFields(log.Fields{
"file": cliConf.BBSim.ConfigFile,
"err": err,
}).Fatal("Can't read config file")
}
// merging Yaml and Default Values
if err := mergo.Merge(Config, yamlConf, mergo.WithOverride); err != nil {
log.WithFields(log.Fields{
"err": err,
}).Fatal("Can't merge YAML and Config")
}
// merging CLI values on top of the yaml ones
if err := mergo.Merge(Config, cliConf, mergo.WithOverride); err != nil {
log.WithFields(log.Fields{
"err": err,
}).Fatal("Can't merge CLI and Config")
}
services, err := loadBBSimServices(Config.BBSim.ServiceConfigFile)
if err != nil {
log.WithFields(log.Fields{
"file": Config.BBSim.ServiceConfigFile,
"err": err,
}).Fatal("Can't read services file")
}
Services = services
}
func readCliParams() *GlobalConfig {
conf := getDefaultOps()
configFile := flag.String("config", conf.BBSim.ConfigFile, "Configuration file path")
servicesFile := flag.String("services", conf.BBSim.ServiceConfigFile, "Service Configuration file path")
sadisBpFormat := flag.String("bp_format", conf.BBSim.BandwidthProfileFormat, "Bandwidth profile format, 'mef' or 'ietf'")
olt_id := flag.Int("olt_id", conf.Olt.ID, "OLT device ID")
nni := flag.Int("nni", int(conf.Olt.NniPorts), "Number of NNI ports per OLT device to be emulated")
nni_speed := flag.Uint("nni_speed", uint(conf.Olt.NniSpeed), "Reported speed of the NNI ports in Mbps")
pon := flag.Int("pon", int(conf.Olt.PonPorts), "Number of PON ports per OLT device to be emulated")
onu := flag.Int("onu", int(conf.Olt.OnusPonPort), "Number of ONU devices per PON port to be emulated")
uni := flag.Int("uni", int(conf.Olt.UniPorts), "Number of Ethernet UNI Ports per ONU device to be emulated")
pots := flag.Int("pots", int(conf.Olt.PotsPorts), "Number of POTS UNI Ports per ONU device to be emulated")
oltRebootDelay := flag.Int("oltRebootDelay", conf.Olt.OltRebootDelay, "Time that BBSim should before restarting after a reboot")
omci_response_rate := flag.Int("omci_response_rate", int(conf.Olt.OmciResponseRate), "Amount of OMCI messages to respond to")
openolt_address := flag.String("openolt_address", conf.BBSim.OpenOltAddress, "IP address:port")
api_address := flag.String("api_address", conf.BBSim.ApiAddress, "IP address:port")
rest_api_address := flag.String("rest_api_address", conf.BBSim.RestApiAddress, "IP address:port")
dmi_server_address := flag.String("dmi_server_address", conf.BBSim.DmiServerAddress, "IP address:port")
profileCpu := flag.String("cpuprofile", "", "write cpu profile to file")
logLevel := flag.String("logLevel", conf.BBSim.LogLevel, "Set the log level (trace, debug, info, warn, error)")
logCaller := flag.Bool("logCaller", conf.BBSim.LogCaller, "Whether to print the caller filename or not")
delay := flag.Int("delay", conf.BBSim.Delay, "The delay between ONU DISCOVERY batches in milliseconds (1 ONU per each PON PORT at a time")
controlledActivation := flag.String("ca", conf.BBSim.ControlledActivation, "Set the mode for controlled activation of PON ports and ONUs")
enablePerf := flag.Bool("enableperf", conf.BBSim.EnablePerf, "Setting this flag will cause BBSim to not store data like traffic schedulers, flows of ONUs etc..")
enableEvents := flag.Bool("enableEvents", conf.BBSim.Events, "Enable sending BBSim events on configured kafka server")
kafkaAddress := flag.String("kafkaAddress", conf.BBSim.KafkaAddress, "IP:Port for kafka")
kafkaEventTopic := flag.String("kafkaEventTopic", conf.BBSim.KafkaEventTopic, "Ability to configure the topic on which BBSim publishes events on Kafka")
dhcpRetry := flag.Bool("dhcpRetry", conf.BBSim.DhcpRetry, "Set this flag if BBSim should retry DHCP upon failure until success")
authRetry := flag.Bool("authRetry", conf.BBSim.AuthRetry, "Set this flag if BBSim should retry EAPOL (Authentication) upon failure until success")
flag.Parse()
conf.Olt.ID = int(*olt_id)
conf.Olt.NniPorts = uint32(*nni)
conf.Olt.NniSpeed = uint32(*nni_speed)
conf.Olt.PonPorts = uint32(*pon)
conf.Olt.UniPorts = uint32(*uni)
conf.Olt.PotsPorts = uint32(*pots)
conf.Olt.OnusPonPort = uint32(*onu)
conf.Olt.OltRebootDelay = *oltRebootDelay
conf.Olt.OmciResponseRate = uint8(*omci_response_rate)
conf.BBSim.ConfigFile = *configFile
conf.BBSim.ServiceConfigFile = *servicesFile
conf.BBSim.CpuProfile = profileCpu
conf.BBSim.LogLevel = *logLevel
conf.BBSim.LogCaller = *logCaller
conf.BBSim.Delay = *delay
conf.BBSim.ControlledActivation = *controlledActivation
conf.BBSim.EnablePerf = *enablePerf
conf.BBSim.Events = *enableEvents
conf.BBSim.KafkaAddress = *kafkaAddress
conf.BBSim.OpenOltAddress = *openolt_address
conf.BBSim.ApiAddress = *api_address
conf.BBSim.RestApiAddress = *rest_api_address
conf.BBSim.KafkaEventTopic = *kafkaEventTopic
conf.BBSim.AuthRetry = *authRetry
conf.BBSim.DhcpRetry = *dhcpRetry
conf.BBSim.DmiServerAddress = *dmi_server_address
// update device id if not set
if conf.Olt.DeviceId == "" {
conf.Olt.DeviceId = net.HardwareAddr{0xA, 0xA, 0xA, 0xA, 0xA, byte(conf.Olt.ID)}.String()
}
// check that the BP format is valid
if (*sadisBpFormat != BP_FORMAT_MEF) && (*sadisBpFormat != BP_FORMAT_IETF) {
log.Fatalf("Invalid parameter 'bp_format', supported values are %s and %s, you provided %s", BP_FORMAT_MEF, BP_FORMAT_IETF, *sadisBpFormat)
}
conf.BBSim.BandwidthProfileFormat = *sadisBpFormat
return conf
}
func getDefaultOps() *GlobalConfig {
c := &GlobalConfig{
BBSimConfig{
ConfigFile: "configs/bbsim.yaml",
ServiceConfigFile: "configs/att-services.yaml",
LogLevel: "debug",
LogCaller: false,
Delay: 200,
OpenOltAddress: ":50060",
ApiAddress: ":50070",
RestApiAddress: ":50071",
LegacyApiAddress: ":50072",
LegacyRestApiAddress: ":50073",
SadisRestAddress: ":50074",
SadisServer: true,
KafkaAddress: ":9092",
Events: false,
ControlledActivation: "default",
EnablePerf: false,
KafkaEventTopic: "",
DhcpRetry: false,
AuthRetry: false,
DmiServerAddress: ":50075",
BandwidthProfileFormat: BP_FORMAT_MEF,
},
OltConfig{
Vendor: "BBSim",
Model: "asfvolt16",
HardwareVersion: "emulated",
FirmwareVersion: "",
DeviceSerialNumber: "BBSM00000001",
PonPorts: 1,
NniPorts: 1,
NniSpeed: 10000, //Mbps
OnusPonPort: 1,
Technology: "XGS-PON",
ID: 0,
OltRebootDelay: 60,
PortStatsInterval: 20,
OmciResponseRate: 10,
UniPorts: 4,
PotsPorts: 0,
},
BBRConfig{
LogLevel: "debug",
LogCaller: false,
},
}
return c
}
// LoadBBSimConf loads the BBSim configuration from a YAML file
func loadBBSimConf(filename string) (*GlobalConfig, error) {
yamlConfig := getDefaultOps()
yamlFile, err := ioutil.ReadFile(filename)
if err != nil {
log.WithFields(log.Fields{
"err": err,
"filename": filename,
}).Error("Cannot load BBSim configuration file. Using defaults.")
return yamlConfig, nil
}
err = yaml.Unmarshal(yamlFile, yamlConfig)
if err != nil {
return nil, err
}
return yamlConfig, nil
}
// LoadBBSimServices parses a file describing the services that need to be created for each UNI
func loadBBSimServices(filename string) ([]ServiceYaml, error) {
yamlServiceCfg := YamlServiceConfig{}
yamlFile, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
err = yaml.Unmarshal([]byte(yamlFile), &yamlServiceCfg)
if err != nil {
return nil, err
}
for _, service := range yamlServiceCfg.Services {
if service.CTagAllocation == "" || service.STagAllocation == "" {
log.Fatal("c_tag_allocation and s_tag_allocation are mandatory fields")
}
if _, err := tagAllocationFromString(string(service.CTagAllocation)); err != nil {
log.WithFields(log.Fields{
"err": err,
}).Fatal("c_tag_allocation is not valid")
}
}
log.WithFields(log.Fields{
"services": yamlServiceCfg.String(),
}).Debug("BBSim services description correctly loaded")
return yamlServiceCfg.Services, nil
}
// This is only used by BBR
func GetBBROpts() BBRCliOptions {
bbsimIp := flag.String("bbsimIp", "127.0.0.1", "BBSim IP")
bbsimPort := flag.String("bbsimPort", "50060", "BBSim Port")
bbsimApiPort := flag.String("bbsimApiPort", "50070", "BBSim API Port")
logFile := flag.String("logfile", "", "Log to a file")
LoadConfig()
bbrOptions := BBRCliOptions{
Config,
*bbsimIp,
*bbsimPort,
*bbsimApiPort,
*logFile,
}
return bbrOptions
}