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driver.go
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driver.go
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// +build !windows
// Copyright (c) 2017 Tigera, Inc. All rights reserved.
//
// 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 dataplane
import (
"net"
"os/exec"
log "github.com/sirupsen/logrus"
"github.com/projectcalico/felix/config"
"github.com/projectcalico/felix/dataplane/external"
"github.com/projectcalico/felix/dataplane/linux"
"github.com/projectcalico/felix/ifacemonitor"
"github.com/projectcalico/felix/ipsets"
"github.com/projectcalico/felix/logutils"
"github.com/projectcalico/felix/rules"
"github.com/projectcalico/libcalico-go/lib/health"
)
func StartDataplaneDriver(configParams *config.Config, healthAggregator *health.HealthAggregator) (DataplaneDriver, *exec.Cmd) {
if configParams.UseInternalDataplaneDriver {
log.Info("Using internal (linux) dataplane driver.")
// Dedicated mark bits for accept and pass actions. These are long lived bits
// that we use for communicating between chains.
markAccept := configParams.NextIptablesMark()
markPass := configParams.NextIptablesMark()
// Short-lived mark bits for local calculations within a chain.
markScratch0 := configParams.NextIptablesMark()
markScratch1 := configParams.NextIptablesMark()
log.WithFields(log.Fields{
"acceptMark": markAccept,
"passMark": markPass,
"scratch0Mark": markScratch0,
"scratch1Mark": markScratch1,
}).Info("Calculated iptables mark bits")
dpConfig := intdataplane.Config{
IfaceMonitorConfig: ifacemonitor.Config{
InterfaceExcludes: configParams.InterfaceExcludes(),
},
RulesConfig: rules.Config{
WorkloadIfacePrefixes: configParams.InterfacePrefixes(),
IPSetConfigV4: ipsets.NewIPVersionConfig(
ipsets.IPFamilyV4,
rules.IPSetNamePrefix,
rules.AllHistoricIPSetNamePrefixes,
rules.LegacyV4IPSetNames,
),
IPSetConfigV6: ipsets.NewIPVersionConfig(
ipsets.IPFamilyV6,
rules.IPSetNamePrefix,
rules.AllHistoricIPSetNamePrefixes,
nil,
),
OpenStackSpecialCasesEnabled: configParams.OpenstackActive(),
OpenStackMetadataIP: net.ParseIP(configParams.MetadataAddr),
OpenStackMetadataPort: uint16(configParams.MetadataPort),
IptablesMarkAccept: markAccept,
IptablesMarkPass: markPass,
IptablesMarkScratch0: markScratch0,
IptablesMarkScratch1: markScratch1,
IPIPEnabled: configParams.IpInIpEnabled,
IPIPTunnelAddress: configParams.IpInIpTunnelAddr,
IptablesLogPrefix: configParams.LogPrefix,
EndpointToHostAction: configParams.DefaultEndpointToHostAction,
IptablesFilterAllowAction: configParams.IptablesFilterAllowAction,
IptablesMangleAllowAction: configParams.IptablesMangleAllowAction,
FailsafeInboundHostPorts: configParams.FailsafeInboundHostPorts,
FailsafeOutboundHostPorts: configParams.FailsafeOutboundHostPorts,
DisableConntrackInvalid: configParams.DisableConntrackInvalidCheck,
IptablesNATOutgoingInterfaceFilter: configParams.IptablesNATOutgoingInterfaceFilter,
},
IPIPMTU: configParams.IpInIpMtu,
IptablesRefreshInterval: configParams.IptablesRefreshInterval,
RouteRefreshInterval: configParams.RouteRefreshInterval,
IPSetsRefreshInterval: configParams.IpsetsRefreshInterval,
IptablesPostWriteCheckInterval: configParams.IptablesPostWriteCheckIntervalSecs,
IptablesInsertMode: configParams.ChainInsertMode,
IptablesLockFilePath: configParams.IptablesLockFilePath,
IptablesLockTimeout: configParams.IptablesLockTimeoutSecs,
IptablesLockProbeInterval: configParams.IptablesLockProbeIntervalMillis,
MaxIPSetSize: configParams.MaxIpsetSize,
IgnoreLooseRPF: configParams.IgnoreLooseRPF,
IPv6Enabled: configParams.Ipv6Support,
StatusReportingInterval: configParams.ReportingIntervalSecs,
NetlinkTimeout: configParams.NetlinkTimeoutSecs,
PostInSyncCallback: func() { logutils.DumpHeapMemoryProfile(configParams) },
HealthAggregator: healthAggregator,
DebugSimulateDataplaneHangAfter: configParams.DebugSimulateDataplaneHangAfter,
}
intDP := intdataplane.NewIntDataplaneDriver(dpConfig)
intDP.Start()
return intDP, nil
} else {
log.WithField("driver", configParams.DataplaneDriver).Info(
"Using external dataplane driver.")
return extdataplane.StartExtDataplaneDriver(configParams.DataplaneDriver)
}
}