// Copyright (c) 2017-2022 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 v3

import (
	"github.com/projectcalico/api/pkg/lib/numorstring"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)

// +genclient:nonNamespaced
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

// FelixConfigurationList contains a list of FelixConfiguration object.
type FelixConfigurationList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`

	Items []FelixConfiguration `json:"items" protobuf:"bytes,2,rep,name=items"`
}

// +genclient
// +genclient:nonNamespaced
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

type FelixConfiguration struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`

	Spec FelixConfigurationSpec `json:"spec,omitempty" protobuf:"bytes,2,opt,name=spec"`
}

const (
	KindFelixConfiguration     = "FelixConfiguration"
	KindFelixConfigurationList = "FelixConfigurationList"
)

type IptablesBackend string

const (
	IptablesBackendLegacy   IptablesBackend = "Legacy"
	IptablesBackendNFTables IptablesBackend = "NFT"
	IptablesBackendAuto     IptablesBackend = "Auto"
)

// NFTablesMode is the enum used to enable/disable nftables mode.
// +enum
type NFTablesMode string

const (
	NFTablesModeEnabled  = "Enabled"
	NFTablesModeDisabled = "Disabled"
)

// +kubebuilder:validation:Enum=DoNothing;Enable;Disable
type AWSSrcDstCheckOption string

const (
	AWSSrcDstCheckOptionDoNothing AWSSrcDstCheckOption = "DoNothing"
	AWSSrcDstCheckOptionEnable    AWSSrcDstCheckOption = "Enable"
	AWSSrcDstCheckOptionDisable   AWSSrcDstCheckOption = "Disable"
)

// +kubebuilder:validation:Enum=Enabled;Disabled
type FloatingIPType string

const (
	FloatingIPsEnabled  FloatingIPType = "Enabled"
	FloatingIPsDisabled FloatingIPType = "Disabled"
)

// +kubebuilder:validation:Enum=Enabled;Disabled
type BPFHostNetworkedNATType string

const (
	BPFHostNetworkedNATEnabled  BPFHostNetworkedNATType = "Enabled"
	BPFHostNetworkedNATDisabled BPFHostNetworkedNATType = "Disabled"
)

// +kubebuilder:validation:Enum=TCP;Enabled;Disabled
type BPFConnectTimeLBType string

const (
	BPFConnectTimeLBTCP      BPFConnectTimeLBType = "TCP"
	BPFConnectTimeLBEnabled  BPFConnectTimeLBType = "Enabled"
	BPFConnectTimeLBDisabled BPFConnectTimeLBType = "Disabled"
)

// +kubebuilder:validation:Enum=Auto;Userspace;BPFProgram
type BPFConntrackMode string

const (
	BPFConntrackModeAuto       BPFConntrackMode = "Auto"
	BPFConntrackModeUserspace  BPFConntrackMode = "Userspace"
	BPFConntrackModeBPFProgram BPFConntrackMode = "BPFProgram"
)

// +kubebuilder:validation:Enum=Enabled;Disabled
type WindowsManageFirewallRulesMode string

const (
	WindowsManageFirewallRulesEnabled  WindowsManageFirewallRulesMode = "Enabled"
	WindowsManageFirewallRulesDisabled WindowsManageFirewallRulesMode = "Disabled"
)

// FelixConfigurationSpec contains the values of the Felix configuration.
type FelixConfigurationSpec struct {
	// UseInternalDataplaneDriver, if true, Felix will use its internal dataplane programming logic.  If false, it
	// will launch an external dataplane driver and communicate with it over protobuf.
	UseInternalDataplaneDriver *bool `json:"useInternalDataplaneDriver,omitempty"`

	// DataplaneDriver filename of the external dataplane driver to use.  Only used if UseInternalDataplaneDriver
	// is set to false.
	DataplaneDriver string `json:"dataplaneDriver,omitempty"`

	// DataplaneWatchdogTimeout is the readiness/liveness timeout used for Felix's (internal) dataplane driver.
	// Deprecated: replaced by the generic HealthTimeoutOverrides.
	DataplaneWatchdogTimeout *metav1.Duration `json:"dataplaneWatchdogTimeout,omitempty" configv1timescale:"seconds"`

	// IPv6Support controls whether Felix enables support for IPv6 (if supported by the in-use dataplane).
	IPv6Support *bool `json:"ipv6Support,omitempty" confignamev1:"Ipv6Support"`

	// RouteRefreshInterval is the period at which Felix re-checks the routes
	// in the dataplane to ensure that no other process has accidentally broken Calico's rules.
	// Set to 0 to disable route refresh. [Default: 90s]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	RouteRefreshInterval *metav1.Duration `json:"routeRefreshInterval,omitempty" configv1timescale:"seconds"`

	// InterfaceRefreshInterval is the period at which Felix rescans local interfaces to verify their state.
	// The rescan can be disabled by setting the interval to 0.
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	InterfaceRefreshInterval *metav1.Duration `json:"interfaceRefreshInterval,omitempty" configv1timescale:"seconds"`

	// IptablesRefreshInterval is the period at which Felix re-checks the IP sets
	// in the dataplane to ensure that no other process has accidentally broken Calico's rules.
	// Set to 0 to disable IP sets refresh. Note: the default for this value is lower than the
	// other refresh intervals as a workaround for a Linux kernel bug that was fixed in kernel
	// version 4.11. If you are using v4.11 or greater you may want to set this to, a higher value
	// to reduce Felix CPU usage. [Default: 10s]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	IptablesRefreshInterval *metav1.Duration `json:"iptablesRefreshInterval,omitempty" configv1timescale:"seconds"`

	// IptablesPostWriteCheckInterval is the period after Felix has done a write
	// to the dataplane that it schedules an extra read back in order to check the write was not
	// clobbered by another process. This should only occur if another application on the system
	// doesn't respect the iptables lock. [Default: 1s]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	IptablesPostWriteCheckInterval *metav1.Duration `json:"iptablesPostWriteCheckInterval,omitempty" configv1timescale:"seconds" confignamev1:"IptablesPostWriteCheckIntervalSecs"`

	// IptablesLockFilePath is the location of the iptables lock file. You may need to change this
	// if the lock file is not in its standard location (for example if you have mapped it into Felix's
	// container at a different path). [Default: /run/xtables.lock]
	IptablesLockFilePath string `json:"iptablesLockFilePath,omitempty"`

	// IptablesLockTimeout is the time that Felix itself will wait for the iptables lock (rather than delegating the
	// lock handling to the `iptables` command).
	//
	// Deprecated: `iptables-restore` v1.8+ always takes the lock, so enabling this feature results in deadlock.
	// [Default: 0s disabled]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	IptablesLockTimeout *metav1.Duration `json:"iptablesLockTimeout,omitempty" configv1timescale:"seconds" confignamev1:"IptablesLockTimeoutSecs"`

	// IptablesLockProbeInterval when IptablesLockTimeout is enabled: the time that Felix will wait between
	// attempts to acquire the iptables lock if it is not available. Lower values make Felix more
	// responsive when the lock is contended, but use more CPU. [Default: 50ms]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	IptablesLockProbeInterval *metav1.Duration `json:"iptablesLockProbeInterval,omitempty" configv1timescale:"milliseconds" confignamev1:"IptablesLockProbeIntervalMillis"`

	// FeatureDetectOverride is used to override feature detection based on auto-detected platform
	// capabilities.  Values are specified in a comma separated list with no spaces, example;
	// "SNATFullyRandom=true,MASQFullyRandom=false,RestoreSupportsLock=". A value of "true" or "false" will
	// force enable/disable feature, empty or omitted values fall back to auto-detection.
	// +kubebuilder:validation:Pattern=`^([a-zA-Z0-9-_]+=(true|false|),)*([a-zA-Z0-9-_]+=(true|false|))?$`
	FeatureDetectOverride string `json:"featureDetectOverride,omitempty" validate:"omitempty,keyValueList"`

	// FeatureGates is used to enable or disable tech-preview Calico features.
	// Values are specified in a comma separated list with no spaces, example;
	// "BPFConnectTimeLoadBalancingWorkaround=enabled,XyZ=false". This is
	// used to enable features that are not fully production ready.
	// +kubebuilder:validation:Pattern=`^([a-zA-Z0-9-_]+=([^=]+),)*([a-zA-Z0-9-_]+=([^=]+))?$`
	FeatureGates string `json:"featureGates,omitempty" validate:"omitempty,keyValueList"`

	// IpsetsRefreshInterval controls the period at which Felix re-checks all IP sets to look for discrepancies.
	// Set to 0 to disable the periodic refresh. [Default: 90s]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	IpsetsRefreshInterval *metav1.Duration `json:"ipsetsRefreshInterval,omitempty" configv1timescale:"seconds"`

	// MaxIpsetSize is the maximum number of IP addresses that can be stored in an IP set. Not applicable
	// if using the nftables backend.
	MaxIpsetSize *int `json:"maxIpsetSize,omitempty"`

	// IptablesBackend controls which backend of iptables will be used. The default is `Auto`.
	//
	// Warning: changing this on a running system can leave "orphaned" rules in the "other" backend. These
	// should be cleaned up to avoid confusing interactions.
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^(?i)(Auto|Legacy|NFT)?$`
	IptablesBackend *IptablesBackend `json:"iptablesBackend,omitempty" validate:"omitempty,iptablesBackend"`

	// XDPRefreshInterval is the period at which Felix re-checks all XDP state to ensure that no
	// other process has accidentally broken Calico's BPF maps or attached programs. Set to 0 to
	// disable XDP refresh. [Default: 90s]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	XDPRefreshInterval *metav1.Duration `json:"xdpRefreshInterval,omitempty" configv1timescale:"seconds"`

	// NetlinkTimeout is the timeout when talking to the kernel over the netlink protocol, used for programming
	// routes, rules, and other kernel objects. [Default: 10s]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	NetlinkTimeout *metav1.Duration `json:"netlinkTimeout,omitempty" configv1timescale:"seconds" confignamev1:"NetlinkTimeoutSecs"`

	// MetadataAddr is the IP address or domain name of the server that can answer VM queries for
	// cloud-init metadata. In OpenStack, this corresponds to the machine running nova-api (or in
	// Ubuntu, nova-api-metadata). A value of none (case-insensitive) means that Felix should not
	// set up any NAT rule for the metadata path. [Default: 127.0.0.1]
	MetadataAddr string `json:"metadataAddr,omitempty"`

	// MetadataPort is the port of the metadata server. This, combined with global.MetadataAddr (if
	// not 'None'), is used to set up a NAT rule, from 169.254.169.254:80 to MetadataAddr:MetadataPort.
	// In most cases this should not need to be changed [Default: 8775].
	MetadataPort *int `json:"metadataPort,omitempty"`

	// OpenstackRegion is the name of the region that a particular Felix belongs to. In a multi-region
	// Calico/OpenStack deployment, this must be configured somehow for each Felix (here in the datamodel,
	// or in felix.cfg or the environment on each compute node), and must match the [calico]
	// openstack_region value configured in neutron.conf on each node. [Default: Empty]
	OpenstackRegion string `json:"openstackRegion,omitempty"`

	// InterfacePrefix is the interface name prefix that identifies workload endpoints and so distinguishes
	// them from host endpoint interfaces. Note: in environments other than bare metal, the orchestrators
	// configure this appropriately. For example our Kubernetes and Docker integrations set the 'cali' value,
	// and our OpenStack integration sets the 'tap' value. [Default: cali]
	InterfacePrefix string `json:"interfacePrefix,omitempty"`

	// InterfaceExclude A comma-separated list of interface names that should be excluded when Felix is resolving
	// host endpoints. The default value ensures that Felix ignores Kubernetes' internal `kube-ipvs0` device. If you
	// want to exclude multiple interface names using a single value, the list supports regular expressions. For
	// regular expressions you must wrap the value with `/`. For example having values `/^kube/,veth1` will exclude
	// all interfaces that begin with `kube` and also the interface `veth1`. [Default: kube-ipvs0]
	InterfaceExclude string `json:"interfaceExclude,omitempty"`

	// ChainInsertMode controls whether Felix hooks the kernel's top-level iptables chains by inserting a rule
	// at the top of the chain or by appending a rule at the bottom. insert is the safe default since it prevents
	// Calico's rules from being bypassed. If you switch to append mode, be sure that the other rules in the chains
	// signal acceptance by falling through to the Calico rules, otherwise the Calico policy will be bypassed.
	// [Default: insert]
	// +kubebuilder:validation:Pattern=`^(?i)(Insert|Append)?$`
	ChainInsertMode string `json:"chainInsertMode,omitempty"`

	// DefaultEndpointToHostAction controls what happens to traffic that goes from a workload endpoint to the host
	// itself (after the endpoint's egress policy is applied). By default, Calico blocks traffic from workload
	// endpoints to the host itself with an iptables "DROP" action. If you want to allow some or all traffic from
	// endpoint to host, set this parameter to RETURN or ACCEPT. Use RETURN if you have your own rules in the iptables
	// "INPUT" chain; Calico will insert its rules at the top of that chain, then "RETURN" packets to the "INPUT" chain
	// once it has completed processing workload endpoint egress policy. Use ACCEPT to unconditionally accept packets
	// from workloads after processing workload endpoint egress policy. [Default: Drop]
	// +kubebuilder:validation:Pattern=`^(?i)(Drop|Accept|Return)?$`
	DefaultEndpointToHostAction string `json:"defaultEndpointToHostAction,omitempty" validate:"omitempty,dropAcceptReturn"`

	// IptablesFilterAllowAction controls what happens to traffic that is accepted by a Felix policy chain in the
	// iptables filter table (which is used for "normal" policy). The default will immediately `Accept` the traffic. Use
	// `Return` to send the traffic back up to the system chains for further processing.
	// +kubebuilder:validation:Pattern=`^(?i)(Accept|Return)?$`
	IptablesFilterAllowAction string `json:"iptablesFilterAllowAction,omitempty" validate:"omitempty,acceptReturn"`

	// IptablesMangleAllowAction controls what happens to traffic that is accepted by a Felix policy chain in the
	// iptables mangle table (which is used for "pre-DNAT" policy). The default will immediately `Accept` the traffic.
	// Use `Return` to send the traffic back up to the system chains for further processing.
	// +kubebuilder:validation:Pattern=`^(?i)(Accept|Return)?$`
	IptablesMangleAllowAction string `json:"iptablesMangleAllowAction,omitempty" validate:"omitempty,acceptReturn"`

	// IptablesFilterDenyAction controls what happens to traffic that is denied by network policy. By default Calico blocks traffic
	// with an iptables "DROP" action. If you want to use "REJECT" action instead you can configure it in here.
	// +kubebuilder:validation:Pattern=`^(?i)(Drop|Reject)?$`
	IptablesFilterDenyAction string `json:"iptablesFilterDenyAction,omitempty" validate:"omitempty,dropReject"`

	// LogPrefix is the log prefix that Felix uses when rendering LOG rules. [Default: calico-packet]
	LogPrefix string `json:"logPrefix,omitempty"`

	// LogFilePath is the full path to the Felix log. Set to none to disable file logging. [Default: /var/log/calico/felix.log]
	LogFilePath string `json:"logFilePath,omitempty"`

	// LogSeverityFile is the log severity above which logs are sent to the log file. [Default: Info]
	// +kubebuilder:validation:Pattern=`^(?i)(Debug|Info|Warning|Error|Fatal)?$`
	LogSeverityFile string `json:"logSeverityFile,omitempty" validate:"omitempty,logLevel"`

	// LogSeverityScreen is the log severity above which logs are sent to the stdout. [Default: Info]
	// +kubebuilder:validation:Pattern=`^(?i)(Debug|Info|Warning|Error|Fatal)?$`
	LogSeverityScreen string `json:"logSeverityScreen,omitempty" validate:"omitempty,logLevel"`

	// LogSeveritySys is the log severity above which logs are sent to the syslog. Set to None for no logging to syslog.
	// [Default: Info]
	// +kubebuilder:validation:Pattern=`^(?i)(Debug|Info|Warning|Error|Fatal)?$`
	LogSeveritySys string `json:"logSeveritySys,omitempty" validate:"omitempty,logLevel"`

	// LogDebugFilenameRegex controls which source code files have their Debug log output included in the logs.
	// Only logs from files with names that match the given regular expression are included.  The filter only applies
	// to Debug level logs.
	LogDebugFilenameRegex string `json:"logDebugFilenameRegex,omitempty" validate:"omitempty,regexp"`

	// IPIPEnabled overrides whether Felix should configure an IPIP interface on the host. Optional as Felix
	// determines this based on the existing IP pools. [Default: nil (unset)]
	IPIPEnabled *bool `json:"ipipEnabled,omitempty" confignamev1:"IpInIpEnabled"`

	// IPIPMTU controls the MTU to set on the IPIP tunnel device.  Optional as Felix auto-detects the MTU based on the
	// MTU of the host's interfaces. [Default: 0 (auto-detect)]
	IPIPMTU *int `json:"ipipMTU,omitempty" confignamev1:"IpInIpMtu"`

	// VXLANEnabled overrides whether Felix should create the VXLAN tunnel device for IPv4 VXLAN networking.
	// Optional as Felix determines this based on the existing IP pools. [Default: nil (unset)]
	VXLANEnabled *bool `json:"vxlanEnabled,omitempty" confignamev1:"VXLANEnabled"`

	// VXLANMTU is the MTU to set on the IPv4 VXLAN tunnel device.  Optional as Felix auto-detects the MTU based on the
	// MTU of the host's interfaces. [Default: 0 (auto-detect)]
	VXLANMTU *int `json:"vxlanMTU,omitempty"`

	// VXLANMTUV6 is the MTU to set on the IPv6 VXLAN tunnel device. Optional as Felix auto-detects the MTU based on the
	// MTU of the host's interfaces. [Default: 0 (auto-detect)]
	VXLANMTUV6 *int `json:"vxlanMTUV6,omitempty"`

	// VXLANPort is the UDP port number to use for VXLAN traffic. [Default: 4789]
	VXLANPort *int `json:"vxlanPort,omitempty"`

	// VXLANVNI is the VXLAN VNI to use for VXLAN traffic.  You may need to change this if the default value is
	// in use on your system. [Default: 4096]
	VXLANVNI *int `json:"vxlanVNI,omitempty"`

	// AllowVXLANPacketsFromWorkloads controls whether Felix will add a rule to drop VXLAN encapsulated traffic
	// from workloads. [Default: false]
	// +optional
	AllowVXLANPacketsFromWorkloads *bool `json:"allowVXLANPacketsFromWorkloads,omitempty"`

	// AllowIPIPPacketsFromWorkloads controls whether Felix will add a rule to drop IPIP encapsulated traffic
	// from workloads. [Default: false]
	// +optional
	AllowIPIPPacketsFromWorkloads *bool `json:"allowIPIPPacketsFromWorkloads,omitempty"`

	// ReportingInterval is the interval at which Felix reports its status into the datastore or 0 to disable.
	// Must be non-zero in OpenStack deployments. [Default: 30s]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	ReportingInterval *metav1.Duration `json:"reportingInterval,omitempty" configv1timescale:"seconds" confignamev1:"ReportingIntervalSecs"`

	// ReportingTTL is the time-to-live setting for process-wide status reports. [Default: 90s]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	ReportingTTL *metav1.Duration `json:"reportingTTL,omitempty" configv1timescale:"seconds" confignamev1:"ReportingTTLSecs"`

	// EndpointReportingEnabled controls whether Felix reports endpoint status to the datastore. This is only used
	// by the OpenStack integration. [Default: false]
	EndpointReportingEnabled *bool `json:"endpointReportingEnabled,omitempty"`

	// EndpointReportingDelay is the delay before Felix reports endpoint status to the datastore. This is only used
	// by the OpenStack integration. [Default: 1s]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	EndpointReportingDelay *metav1.Duration `json:"endpointReportingDelay,omitempty" configv1timescale:"seconds" confignamev1:"EndpointReportingDelaySecs"`

	// EndpointStatusPathPrefix is the path to the directory where endpoint status will be written. Endpoint status
	// file reporting is disabled if field is left empty.
	//
	// Chosen directory should match the directory used by the CNI plugin for PodStartupDelay.
	// [Default: ""]
	EndpointStatusPathPrefix string `json:"endpointStatusPathPrefix,omitempty"`

	// IptablesMarkMask is the mask that Felix selects its IPTables Mark bits from. Should be a 32 bit hexadecimal
	// number with at least 8 bits set, none of which clash with any other mark bits in use on the system.
	// [Default: 0xffff0000]
	IptablesMarkMask *uint32 `json:"iptablesMarkMask,omitempty"`

	// DisableConntrackInvalidCheck disables the check for invalid connections in conntrack. While the conntrack
	// invalid check helps to detect malicious traffic, it can also cause issues with certain multi-NIC scenarios.
	DisableConntrackInvalidCheck *bool `json:"disableConntrackInvalidCheck,omitempty"`

	// HealthEnabled if set to true, enables Felix's health port, which provides readiness and liveness endpoints.
	// [Default: false]
	HealthEnabled *bool `json:"healthEnabled,omitempty"`
	// HealthHost is the host that the health server should bind to. [Default: localhost]
	HealthHost *string `json:"healthHost,omitempty"`
	// HealthPort is the TCP port that the health server should bind to. [Default: 9099]
	HealthPort *int `json:"healthPort,omitempty"`

	// HealthTimeoutOverrides allows the internal watchdog timeouts of individual subcomponents to be
	// overridden.  This is useful for working around "false positive" liveness timeouts that can occur
	// in particularly stressful workloads or if CPU is constrained.  For a list of active
	// subcomponents, see Felix's logs.
	HealthTimeoutOverrides []HealthTimeoutOverride `json:"healthTimeoutOverrides,omitempty" validate:"omitempty,dive"`

	// PrometheusMetricsEnabled enables the Prometheus metrics server in Felix if set to true. [Default: false]
	PrometheusMetricsEnabled *bool `json:"prometheusMetricsEnabled,omitempty"`

	// PrometheusMetricsHost is the host that the Prometheus metrics server should bind to. [Default: empty]
	PrometheusMetricsHost string `json:"prometheusMetricsHost,omitempty" validate:"omitempty,prometheusHost"`

	// PrometheusMetricsPort is the TCP port that the Prometheus metrics server should bind to. [Default: 9091]
	PrometheusMetricsPort *int `json:"prometheusMetricsPort,omitempty"`

	// PrometheusGoMetricsEnabled disables Go runtime metrics collection, which the Prometheus client does by default, when
	// set to false. This reduces the number of metrics reported, reducing Prometheus load. [Default: true]
	PrometheusGoMetricsEnabled *bool `json:"prometheusGoMetricsEnabled,omitempty"`

	// PrometheusProcessMetricsEnabled disables process metrics collection, which the Prometheus client does by default, when
	// set to false. This reduces the number of metrics reported, reducing Prometheus load. [Default: true]
	PrometheusProcessMetricsEnabled *bool `json:"prometheusProcessMetricsEnabled,omitempty"`

	// PrometheusWireGuardMetricsEnabled disables wireguard metrics collection, which the Prometheus client does by default, when
	// set to false. This reduces the number of metrics reported, reducing Prometheus load. [Default: true]
	PrometheusWireGuardMetricsEnabled *bool `json:"prometheusWireGuardMetricsEnabled,omitempty"`

	// FailsafeInboundHostPorts is a list of ProtoPort struct objects including UDP/TCP/SCTP ports and CIDRs that Felix will
	// allow incoming traffic to host endpoints on irrespective of the security policy. This is useful to avoid accidentally
	// cutting off a host with incorrect configuration. For backwards compatibility, if the protocol is not specified,
	// it defaults to "tcp". If a CIDR is not specified, it will allow traffic from all addresses. To disable all inbound host ports,
	// use the value "[]". The default value allows ssh access, DHCP, BGP, etcd and the Kubernetes API.
	// [Default: tcp:22, udp:68, tcp:179, tcp:2379, tcp:2380, tcp:5473, tcp:6443, tcp:6666, tcp:6667 ]
	FailsafeInboundHostPorts *[]ProtoPort `json:"failsafeInboundHostPorts,omitempty"`

	// FailsafeOutboundHostPorts is a list of PortProto struct objects including UDP/TCP/SCTP ports and CIDRs that Felix
	// will allow outgoing traffic from host endpoints to irrespective of the security policy. This is useful to avoid accidentally
	// cutting off a host with incorrect configuration. For backwards compatibility, if the protocol is not specified, it defaults
	// to "tcp". If a CIDR is not specified, it will allow traffic from all addresses. To disable all outbound host ports,
	// use the value "[]". The default value opens etcd's standard ports to ensure that Felix does not get cut off from etcd
	// as well as allowing DHCP, DNS, BGP and the Kubernetes API.
	// [Default: udp:53, udp:67, tcp:179, tcp:2379, tcp:2380, tcp:5473, tcp:6443, tcp:6666, tcp:6667 ]
	FailsafeOutboundHostPorts *[]ProtoPort `json:"failsafeOutboundHostPorts,omitempty"`

	// KubeNodePortRanges holds list of port ranges used for service node ports. Only used if felix detects kube-proxy running in ipvs mode.
	// Felix uses these ranges to separate host and workload traffic. [Default: 30000:32767].
	KubeNodePortRanges *[]numorstring.Port `json:"kubeNodePortRanges,omitempty" validate:"omitempty,dive"`

	// PolicySyncPathPrefix is used to by Felix to communicate policy changes to external services,
	// like Application layer policy. [Default: Empty]
	PolicySyncPathPrefix string `json:"policySyncPathPrefix,omitempty"`

	// UsageReportingEnabled reports anonymous Calico version number and cluster size to projectcalico.org. Logs warnings returned by the usage
	// server. For example, if a significant security vulnerability has been discovered in the version of Calico being used. [Default: true]
	UsageReportingEnabled *bool `json:"usageReportingEnabled,omitempty"`

	// UsageReportingInitialDelay controls the minimum delay before Felix makes a report. [Default: 300s]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	UsageReportingInitialDelay *metav1.Duration `json:"usageReportingInitialDelay,omitempty" configv1timescale:"seconds" confignamev1:"UsageReportingInitialDelaySecs"`

	// UsageReportingInterval controls the interval at which Felix makes reports. [Default: 86400s]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	UsageReportingInterval *metav1.Duration `json:"usageReportingInterval,omitempty" configv1timescale:"seconds" confignamev1:"UsageReportingIntervalSecs"`

	// NATPortRange specifies the range of ports that is used for port mapping when doing outgoing NAT. When unset the default behavior of the
	// network stack is used.
	NATPortRange *numorstring.Port `json:"natPortRange,omitempty"`

	// NATOutgoingAddress specifies an address to use when performing source NAT for traffic in a natOutgoing pool that
	// is leaving the network. By default the address used is an address on the interface the traffic is leaving on
	// (i.e. it uses the iptables MASQUERADE target).
	NATOutgoingAddress string `json:"natOutgoingAddress,omitempty"`

	// DeviceRouteSourceAddress IPv4 address to set as the source hint for routes programmed by Felix. When not set
	// the source address for local traffic from host to workload will be determined by the kernel.
	DeviceRouteSourceAddress string `json:"deviceRouteSourceAddress,omitempty"`

	// DeviceRouteSourceAddressIPv6 IPv6 address to set as the source hint for routes programmed by Felix. When not set
	// the source address for local traffic from host to workload will be determined by the kernel.
	DeviceRouteSourceAddressIPv6 string `json:"deviceRouteSourceAddressIPv6,omitempty"`

	// DeviceRouteProtocol controls the protocol to set on routes programmed by Felix. The protocol is an 8-bit label
	// used to identify the owner of the route.
	DeviceRouteProtocol *int `json:"deviceRouteProtocol,omitempty"`

	// RemoveExternalRoutes Controls whether Felix will remove unexpected routes to workload interfaces. Felix will
	// always clean up expected routes that use the configured DeviceRouteProtocol.  To add your own routes, you must
	// use a distinct protocol (in addition to setting this field to false).
	RemoveExternalRoutes *bool `json:"removeExternalRoutes,omitempty"`

	// IPForwarding controls whether Felix sets the host sysctls to enable IP forwarding.  IP forwarding is required
	// when using Calico for workload networking.  This should be disabled only on hosts where Calico is used solely for
	// host protection. In BPF mode, due to a kernel interaction, either IPForwarding must be enabled or BPFEnforceRPF
	// must be disabled. [Default: Enabled]
	// +kubebuilder:validation:Enum=Enabled;Disabled
	IPForwarding string `json:"ipForwarding,omitempty"`

	// ExternalNodesCIDRList is a list of CIDR's of external, non-Calico nodes from which VXLAN/IPIP overlay traffic
	// will be allowed.  By default, external tunneled traffic is blocked to reduce attack surface.
	ExternalNodesCIDRList *[]string `json:"externalNodesList,omitempty"`

	// DebugMemoryProfilePath is the path to write the memory profile to when triggered by signal.
	DebugMemoryProfilePath string `json:"debugMemoryProfilePath,omitempty"`

	// DebugDisableLogDropping disables the dropping of log messages when the log buffer is full.  This can
	// significantly impact performance if log write-out is a bottleneck. [Default: false]
	DebugDisableLogDropping *bool `json:"debugDisableLogDropping,omitempty"`

	// DebugSimulateCalcGraphHangAfter is used to simulate a hang in the calculation graph after the specified duration.
	// This is useful in tests of the watchdog system only!
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	DebugSimulateCalcGraphHangAfter *metav1.Duration `json:"debugSimulateCalcGraphHangAfter,omitempty" configv1timescale:"seconds"`

	// DebugSimulateDataplaneHangAfter is used to simulate a hang in the dataplane after the specified duration.
	// This is useful in tests of the watchdog system only!
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	DebugSimulateDataplaneHangAfter *metav1.Duration `json:"debugSimulateDataplaneHangAfter,omitempty" configv1timescale:"seconds"`

	// DebugSimulateDataplaneApplyDelay adds an artificial delay to every dataplane operation.  This is useful for
	// simulating a heavily loaded system for test purposes only.
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	DebugSimulateDataplaneApplyDelay *metav1.Duration `json:"debugSimulateDataplaneApplyDelay,omitempty" configv1timescale:"seconds"`

	// DebugHost is the host IP or hostname to bind the debug port to.  Only used
	// if DebugPort is set. [Default:localhost]
	DebugHost *string `json:"debugHost,omitempty"`

	// DebugPort if set, enables Felix's debug HTTP port, which allows memory and CPU profiles
	// to be retrieved.  The debug port is not secure, it should not be exposed to the internet.
	DebugPort *int `json:"debugPort,omitempty" validate:"omitempty,gte=0,lte=65535"`

	// This parameter can be used to limit the host interfaces on which Calico will apply SNAT to traffic leaving a
	// Calico IPAM pool with "NAT outgoing" enabled. This can be useful if you have a main data interface, where
	// traffic should be SNATted and a secondary device (such as the docker bridge) which is local to the host and
	// doesn't require SNAT. This parameter uses the iptables interface matching syntax, which allows + as a
	// wildcard. Most users will not need to set this. Example: if your data interfaces are eth0 and eth1 and you
	// want to exclude the docker bridge, you could set this to eth+
	IptablesNATOutgoingInterfaceFilter string `json:"iptablesNATOutgoingInterfaceFilter,omitempty" validate:"omitempty,ifaceFilter"`

	// SidecarAccelerationEnabled enables experimental sidecar acceleration [Default: false]
	SidecarAccelerationEnabled *bool `json:"sidecarAccelerationEnabled,omitempty"`

	// XDPEnabled enables XDP acceleration for suitable untracked incoming deny rules. [Default: true]
	XDPEnabled *bool `json:"xdpEnabled,omitempty" confignamev1:"XDPEnabled"`

	// GenericXDPEnabled enables Generic XDP so network cards that don't support XDP offload or driver
	// modes can use XDP. This is not recommended since it doesn't provide better performance than
	// iptables. [Default: false]
	GenericXDPEnabled *bool `json:"genericXDPEnabled,omitempty" confignamev1:"GenericXDPEnabled"`

	// NFTablesMode configures nftables support in Felix. [Default: Disabled]
	// +kubebuilder:validation:Enum=Disabled;Enabled;Auto
	NFTablesMode *NFTablesMode `json:"nftablesMode,omitempty"`

	// NftablesRefreshInterval controls the interval at which Felix periodically refreshes the nftables rules. [Default: 90s]
	NftablesRefreshInterval *metav1.Duration `json:"nftablesRefreshInterval,omitempty" configv1timescale:"seconds"`

	// NftablesFilterAllowAction controls the nftables action that Felix uses to represent the "allow" policy verdict
	// in the filter table. The default is to `ACCEPT` the traffic, which is a terminal action.  Alternatively,
	// `RETURN` can be used to return the traffic back to the top-level chain for further processing by your rules.
	// +kubebuilder:validation:Pattern=`^(?i)(Accept|Return)?$`
	NftablesFilterAllowAction string `json:"nftablesFilterAllowAction,omitempty" validate:"omitempty,acceptReturn"`

	// NftablesMangleAllowAction controls the nftables action that Felix uses to represent the "allow" policy verdict
	// in the mangle table. The default is to `ACCEPT` the traffic, which is a terminal action.  Alternatively,
	// `RETURN` can be used to return the traffic back to the top-level chain for further processing by your rules.
	// +kubebuilder:validation:Pattern=`^(?i)(Accept|Return)?$`
	NftablesMangleAllowAction string `json:"nftablesMangleAllowAction,omitempty" validate:"omitempty,acceptReturn"`

	// NftablesFilterDenyAction controls what happens to traffic that is denied by network policy. By default, Calico
	// blocks traffic with a "drop" action. If you want to use a "reject" action instead you can configure it here.
	// +kubebuilder:validation:Pattern=`^(?i)(Drop|Reject)?$`
	NftablesFilterDenyAction string `json:"nftablesFilterDenyAction,omitempty" validate:"omitempty,dropReject"`

	// NftablesMarkMask is the mask that Felix selects its nftables Mark bits from. Should be a 32 bit hexadecimal
	// number with at least 8 bits set, none of which clash with any other mark bits in use on the system.
	// [Default: 0xffff0000]
	NftablesMarkMask *uint32 `json:"nftablesMarkMask,omitempty"`

	// BPFEnabled, if enabled Felix will use the BPF dataplane. [Default: false]
	BPFEnabled *bool `json:"bpfEnabled,omitempty" validate:"omitempty"`

	// BPFDisableUnprivileged, if enabled, Felix sets the kernel.unprivileged_bpf_disabled sysctl to disable
	// unprivileged use of BPF.  This ensures that unprivileged users cannot access Calico's BPF maps and
	// cannot insert their own BPF programs to interfere with Calico's. [Default: true]
	BPFDisableUnprivileged *bool `json:"bpfDisableUnprivileged,omitempty" validate:"omitempty"`

	// BPFLogLevel controls the log level of the BPF programs when in BPF dataplane mode.  One of "Off", "Info", or
	// "Debug".  The logs are emitted to the BPF trace pipe, accessible with the command `tc exec bpf debug`.
	// [Default: Off].
	// +optional
	// +kubebuilder:validation:Pattern=`^(?i)(Off|Info|Debug)?$`
	BPFLogLevel string `json:"bpfLogLevel" validate:"omitempty,bpfLogLevel"`

	// BPFConntrackLogLevel controls the log level of the BPF conntrack cleanup program, which runs periodically
	// to clean up expired BPF conntrack entries.
	// [Default: Off].
	// +optional
	// +kubebuilder:validation:Enum=Off;Debug
	BPFConntrackLogLevel string `json:"bpfConntrackLogLevel,omitempty" validate:"omitempty,oneof=Off Debug"`

	// BPFConntrackCleanupMode controls how BPF conntrack entries are cleaned up.  `Auto` will use a BPF program if supported,
	// falling back to userspace if not.  `Userspace` will always use the userspace cleanup code.  `BPFProgram` will
	// always use the BPF program (failing if not supported).
	// [Default: Auto]
	BPFConntrackCleanupMode *BPFConntrackMode `json:"bpfConntrackMode,omitempty" validate:"omitempty,oneof=Auto Userspace BPFProgram"`

	// BPFLogFilters is a map of key=values where the value is
	// a pcap filter expression and the key is an interface name with 'all'
	// denoting all interfaces, 'weps' all workload endpoints and 'heps' all host
	// endpoints.
	//
	// When specified as an env var, it accepts a comma-separated list of
	// key=values.
	// [Default: unset - means all debug logs are emitted]
	// +optional
	BPFLogFilters *map[string]string `json:"bpfLogFilters,omitempty" validate:"omitempty,bpfLogFilters"`

	// BPFCTLBLogFilter specifies, what is logged by connect time load balancer when BPFLogLevel is
	// debug. Currently has to be specified as 'all' when BPFLogFilters is set
	// to see CTLB logs.
	// [Default: unset - means logs are emitted when BPFLogLevel id debug and BPFLogFilters not set.]
	// +optional
	BPFCTLBLogFilter string `json:"bpfCTLBLogFilter,omitempty" validate:"omitempty"`

	// BPFDataIfacePattern is a regular expression that controls which interfaces Felix should attach BPF programs to
	// in order to catch traffic to/from the network.  This needs to match the interfaces that Calico workload traffic
	// flows over as well as any interfaces that handle incoming traffic to nodeports and services from outside the
	// cluster.  It should not match the workload interfaces (usually named cali...) or any other special device managed
	// by Calico itself (e.g., tunnels).
	BPFDataIfacePattern string `json:"bpfDataIfacePattern,omitempty" validate:"omitempty,regexp"`

	// BPFL3IfacePattern is a regular expression that allows to list tunnel devices like wireguard or vxlan (i.e., L3 devices)
	// in addition to BPFDataIfacePattern. That is, tunnel interfaces not created by Calico, that Calico workload traffic flows
	// over as well as any interfaces that handle incoming traffic to nodeports and services from outside the cluster.
	BPFL3IfacePattern string `json:"bpfL3IfacePattern,omitempty" validate:"omitempty,regexp"`

	// BPFConnectTimeLoadBalancingEnabled when in BPF mode, controls whether Felix installs the connection-time load
	// balancer.  The connect-time load balancer is required for the host to be able to reach Kubernetes services
	// and it improves the performance of pod-to-service connections.  The only reason to disable it is for debugging
	// purposes.
	//
	// Deprecated: Use BPFConnectTimeLoadBalancing [Default: true]
	BPFConnectTimeLoadBalancingEnabled *bool `json:"bpfConnectTimeLoadBalancingEnabled,omitempty" validate:"omitempty"`

	// BPFConnectTimeLoadBalancing when in BPF mode, controls whether Felix installs the connect-time load
	// balancer. The connect-time load balancer is required for the host to be able to reach Kubernetes services
	// and it improves the performance of pod-to-service connections.When set to TCP, connect time load balancing
	// is available only for services with TCP ports. [Default: TCP]
	BPFConnectTimeLoadBalancing *BPFConnectTimeLBType `json:"bpfConnectTimeLoadBalancing,omitempty" validate:"omitempty,oneof=TCP Enabled Disabled"`

	// BPFHostNetworkedNATWithoutCTLB when in BPF mode, controls whether Felix does a NAT without CTLB. This along with BPFConnectTimeLoadBalancing
	// determines the CTLB behavior. [Default: Enabled]
	BPFHostNetworkedNATWithoutCTLB *BPFHostNetworkedNATType `json:"bpfHostNetworkedNATWithoutCTLB,omitempty" validate:"omitempty,oneof=Enabled Disabled"`

	// BPFExternalServiceMode in BPF mode, controls how connections from outside the cluster to services (node ports
	// and cluster IPs) are forwarded to remote workloads.  If set to "Tunnel" then both request and response traffic
	// is tunneled to the remote node.  If set to "DSR", the request traffic is tunneled but the response traffic
	// is sent directly from the remote node.  In "DSR" mode, the remote node appears to use the IP of the ingress
	// node; this requires a permissive L2 network.  [Default: Tunnel]
	// +kubebuilder:validation:Pattern=`^(?i)(Tunnel|DSR)?$`
	BPFExternalServiceMode string `json:"bpfExternalServiceMode,omitempty" validate:"omitempty,bpfServiceMode"`

	// BPFDSROptoutCIDRs is a list of CIDRs which are excluded from DSR. That is, clients
	// in those CIDRs will access service node ports as if BPFExternalServiceMode was set to
	// Tunnel.
	BPFDSROptoutCIDRs *[]string `json:"bpfDSROptoutCIDRs,omitempty" validate:"omitempty,cidrs"`

	// BPFExtToServiceConnmark in BPF mode, controls a 32bit mark that is set on connections from an
	// external client to a local service. This mark allows us to control how packets of that
	// connection are routed within the host and how is routing interpreted by RPF check. [Default: 0]
	BPFExtToServiceConnmark *int `json:"bpfExtToServiceConnmark,omitempty" validate:"omitempty,gte=0,lte=4294967295"`

	// BPFKubeProxyIptablesCleanupEnabled, if enabled in BPF mode, Felix will proactively clean up the upstream
	// Kubernetes kube-proxy's iptables chains.  Should only be enabled if kube-proxy is not running.  [Default: true]
	BPFKubeProxyIptablesCleanupEnabled *bool `json:"bpfKubeProxyIptablesCleanupEnabled,omitempty" validate:"omitempty"`

	// BPFKubeProxyMinSyncPeriod, in BPF mode, controls the minimum time between updates to the dataplane for Felix's
	// embedded kube-proxy.  Lower values give reduced set-up latency.  Higher values reduce Felix CPU usage by
	// batching up more work.  [Default: 1s]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	BPFKubeProxyMinSyncPeriod *metav1.Duration `json:"bpfKubeProxyMinSyncPeriod,omitempty" validate:"omitempty" configv1timescale:"seconds"`

	// BPFKubeProxyEndpointSlicesEnabled is deprecated and has no effect. BPF
	// kube-proxy always accepts endpoint slices. This option will be removed in
	// the next release.
	BPFKubeProxyEndpointSlicesEnabled *bool `json:"bpfKubeProxyEndpointSlicesEnabled,omitempty" validate:"omitempty"`

	// BPFPSNATPorts sets the range from which we randomly pick a port if there is a source port
	// collision. This should be within the ephemeral range as defined by RFC 6056 (1024–65535) and
	// preferably outside the  ephemeral ranges used by common operating systems. Linux uses
	// 32768–60999, while others mostly use the IANA defined range 49152–65535. It is not necessarily
	// a problem if this range overlaps with the operating systems. Both ends of the range are
	// inclusive. [Default: 20000:29999]
	BPFPSNATPorts *numorstring.Port `json:"bpfPSNATPorts,omitempty"`

	// BPFMapSizeNATFrontend sets the size for NAT front end map.
	// FrontendMap should be large enough to hold an entry for each nodeport,
	// external IP and each port in each service.
	BPFMapSizeNATFrontend *int `json:"bpfMapSizeNATFrontend,omitempty"`

	// BPFMapSizeNATBackend sets the size for NAT back end map.
	// This is the total number of endpoints. This is mostly
	// more than the size of the number of services.
	BPFMapSizeNATBackend *int `json:"bpfMapSizeNATBackend,omitempty"`

	// BPFMapSizeNATAffinity sets the size of the BPF map that stores the affinity of a connection (for services that
	// enable that feature.
	BPFMapSizeNATAffinity *int `json:"bpfMapSizeNATAffinity,omitempty"`

	// BPFMapSizeRoute sets the size for the routes map.  The routes map should be large enough
	// to hold one entry per workload and a handful of entries per host (enough to cover its own IPs and
	// tunnel IPs).
	BPFMapSizeRoute *int `json:"bpfMapSizeRoute,omitempty"`

	// BPFMapSizeConntrack sets the size for the conntrack map.  This map must be large enough to hold
	// an entry for each active connection.  Warning: changing the size of the conntrack map can cause disruption.
	BPFMapSizeConntrack *int `json:"bpfMapSizeConntrack,omitempty"`

	// BPFMapSizePerCPUConntrack determines the size of conntrack map based on the number of CPUs. If set to a
	// non-zero value, overrides BPFMapSizeConntrack with `BPFMapSizePerCPUConntrack * (Number of CPUs)`.
	// This map must be large enough to hold an entry for each active connection.  Warning: changing the size of the
	// conntrack map can cause disruption.
	BPFMapSizePerCPUConntrack *int `json:"bpfMapSizePerCpuConntrack,omitempty"`

	// BPFMapSizeConntrackCleanupQueue sets the size for the map used to hold NAT conntrack entries that are queued
	// for cleanup.  This should be big enough to hold all the NAT entries that expire within one cleanup interval.
	// +kubebuilder:validation:Minimum=1
	BPFMapSizeConntrackCleanupQueue *int `json:"bpfMapSizeConntrackCleanupQueue,omitempty"  validate:"omitempty,gte=1"`

	// BPFMapSizeIPSets sets the size for ipsets map.  The IP sets map must be large enough to hold an entry
	// for each endpoint matched by every selector in the source/destination matches in network policy.  Selectors
	// such as "all()" can result in large numbers of entries (one entry per endpoint in that case).
	BPFMapSizeIPSets *int `json:"bpfMapSizeIPSets,omitempty"`

	// BPFMapSizeIfState sets the size for ifstate map.  The ifstate map must be large enough to hold an entry
	// for each device (host + workloads) on a host.
	BPFMapSizeIfState *int `json:"bpfMapSizeIfState,omitempty"`

	// BPFHostConntrackBypass Controls whether to bypass Linux conntrack in BPF mode for
	// workloads and services. [Default: true - bypass Linux conntrack]
	BPFHostConntrackBypass *bool `json:"bpfHostConntrackBypass,omitempty"`

	// BPFEnforceRPF enforce strict RPF on all host interfaces with BPF programs regardless of
	// what is the per-interfaces or global setting. Possible values are Disabled, Strict
	// or Loose. [Default: Loose]
	// +kubebuilder:validation:Pattern=`^(?i)(Disabled|Strict|Loose)?$`
	BPFEnforceRPF string `json:"bpfEnforceRPF,omitempty"`

	// BPFPolicyDebugEnabled when true, Felix records detailed information
	// about the BPF policy programs, which can be examined with the calico-bpf command-line tool.
	BPFPolicyDebugEnabled *bool `json:"bpfPolicyDebugEnabled,omitempty"`

	// BPFForceTrackPacketsFromIfaces in BPF mode, forces traffic from these interfaces
	// to skip Calico's iptables NOTRACK rule, allowing traffic from those interfaces to be
	// tracked by Linux conntrack.  Should only be used for interfaces that are not used for
	// the Calico fabric.  For example, a docker bridge device for non-Calico-networked
	// containers. [Default: docker+]
	BPFForceTrackPacketsFromIfaces *[]string `json:"bpfForceTrackPacketsFromIfaces,omitempty" validate:"omitempty,ifaceFilterSlice"`

	// BPFDisableGROForIfaces is a regular expression that controls which interfaces Felix should disable the
	// Generic Receive Offload [GRO] option.  It should not match the workload interfaces (usually named cali...).
	BPFDisableGROForIfaces string `json:"bpfDisableGROForIfaces,omitempty" validate:"omitempty,regexp"`

	// BPFExcludeCIDRsFromNAT is a list of CIDRs that are to be excluded from NAT
	// resolution so that host can handle them. A typical usecase is node local
	// DNS cache.
	BPFExcludeCIDRsFromNAT *[]string `json:"bpfExcludeCIDRsFromNAT,omitempty" validate:"omitempty,cidrs"`

	// BPFRedirectToPeer controls which whether it is allowed to forward straight to the
	// peer side of the workload devices. It is allowed for any host L2 devices by default
	// (L2Only), but it breaks TCP dump on the host side of workload device as it bypasses
	// it on ingress. Value of Enabled also allows redirection from L3 host devices like
	// IPIP tunnel or Wireguard directly to the peer side of the workload's device. This
	// makes redirection faster, however, it breaks tools like tcpdump on the peer side.
	// Use Enabled with caution. [Default: L2Only]
	//+kubebuilder:validation:Enum=Enabled;Disabled;L2Only
	BPFRedirectToPeer string `json:"bpfRedirectToPeer,omitempty"`

	// BPFProfiling controls profiling of BPF programs. At the monent, it can be
	// Disabled or Enabled. [Default: Disabled]
	//+kubebuilder:validation:Enum=Enabled;Disabled
	BPFProfiling string `json:"bpfProfiling,omitempty"`

	// RouteSource configures where Felix gets its routing information.
	// - WorkloadIPs: use workload endpoints to construct routes.
	// - CalicoIPAM: the default - use IPAM data to construct routes.
	// +kubebuilder:validation:Pattern=`^(?i)(WorkloadIPs|CalicoIPAM)?$`
	RouteSource string `json:"routeSource,omitempty" validate:"omitempty,routeSource"`

	// Calico programs additional Linux route tables for various purposes.
	// RouteTableRanges specifies a set of table index ranges that Calico should use.
	// Deprecates`RouteTableRange`, overrides `RouteTableRange`.
	RouteTableRanges *RouteTableRanges `json:"routeTableRanges,omitempty" validate:"omitempty,dive"`

	// Deprecated in favor of RouteTableRanges.
	// Calico programs additional Linux route tables for various purposes.
	// RouteTableRange specifies the indices of the route tables that Calico should use.
	RouteTableRange *RouteTableRange `json:"routeTableRange,omitempty" validate:"omitempty"`

	// RouteSyncDisabled will disable all operations performed on the route table. Set to true to
	// run in network-policy mode only.
	RouteSyncDisabled *bool `json:"routeSyncDisabled,omitempty"`

	// WireguardEnabled controls whether Wireguard is enabled for IPv4 (encapsulating IPv4 traffic over an IPv4 underlay network). [Default: false]
	WireguardEnabled *bool `json:"wireguardEnabled,omitempty"`

	// WireguardEnabledV6 controls whether Wireguard is enabled for IPv6 (encapsulating IPv6 traffic over an IPv6 underlay network). [Default: false]
	WireguardEnabledV6 *bool `json:"wireguardEnabledV6,omitempty"`
	// WireguardThreadingEnabled controls whether Wireguard has NAPI threading enabled. [Default: false]
	WireguardThreadingEnabled *bool `json:"wireguardThreadingEnabled,omitempty"`
	// WireguardListeningPort controls the listening port used by IPv4 Wireguard. [Default: 51820]
	WireguardListeningPort *int `json:"wireguardListeningPort,omitempty" validate:"omitempty,gt=0,lte=65535"`

	// WireguardListeningPortV6 controls the listening port used by IPv6 Wireguard. [Default: 51821]
	WireguardListeningPortV6 *int `json:"wireguardListeningPortV6,omitempty" validate:"omitempty,gt=0,lte=65535"`

	// WireguardRoutingRulePriority controls the priority value to use for the Wireguard routing rule. [Default: 99]
	WireguardRoutingRulePriority *int `json:"wireguardRoutingRulePriority,omitempty" validate:"omitempty,gt=0,lt=32766"`

	// WireguardInterfaceName specifies the name to use for the IPv4 Wireguard interface. [Default: wireguard.cali]
	WireguardInterfaceName string `json:"wireguardInterfaceName,omitempty" validate:"omitempty,interface"`

	// WireguardInterfaceNameV6 specifies the name to use for the IPv6 Wireguard interface. [Default: wg-v6.cali]
	WireguardInterfaceNameV6 string `json:"wireguardInterfaceNameV6,omitempty" validate:"omitempty,interface"`

	// WireguardMTU controls the MTU on the IPv4 Wireguard interface. See Configuring MTU [Default: 1440]
	WireguardMTU *int `json:"wireguardMTU,omitempty"`

	// WireguardMTUV6 controls the MTU on the IPv6 Wireguard interface. See Configuring MTU [Default: 1420]
	WireguardMTUV6 *int `json:"wireguardMTUV6,omitempty"`

	// WireguardHostEncryptionEnabled controls whether Wireguard host-to-host encryption is enabled. [Default: false]
	WireguardHostEncryptionEnabled *bool `json:"wireguardHostEncryptionEnabled,omitempty"`

	// WireguardPersistentKeepAlive controls Wireguard PersistentKeepalive option. Set 0 to disable. [Default: 0]
	// +kubebuilder:validation:Type=string
	// +kubebuilder:validation:Pattern=`^([0-9]+(\\.[0-9]+)?(ms|s|m|h))*$`
	WireguardPersistentKeepAlive *metav1.Duration `json:"wireguardKeepAlive,omitempty"`

	// AWSSrcDstCheck controls whether Felix will try to change the "source/dest check" setting on the EC2 instance
	// on which it is running. A value of "Disable" will try to disable the source/dest check. Disabling the check
	// allows for sending workload traffic without encapsulation within the same AWS subnet.
	// [Default: DoNothing]
	AWSSrcDstCheck *AWSSrcDstCheckOption `json:"awsSrcDstCheck,omitempty" validate:"omitempty,oneof=DoNothing Enable Disable"`

	// When service IP advertisement is enabled, prevent routing loops to service IPs that are
	// not in use, by dropping or rejecting packets that do not get DNAT'd by kube-proxy.
	// Unless set to "Disabled", in which case such routing loops continue to be allowed.
	// [Default: Drop]
	// +kubebuilder:validation:Pattern=`^(?i)(Drop|Reject|Disabled)?$`
	ServiceLoopPrevention string `json:"serviceLoopPrevention,omitempty" validate:"omitempty,oneof=Drop Reject Disabled"`

	// WorkloadSourceSpoofing controls whether pods can use the allowedSourcePrefixes annotation to send traffic with a source IP
	// address that is not theirs. This is disabled by default. When set to "Any", pods can request any prefix.
	// +kubebuilder:validation:Pattern=`^(?i)(Disabled|Any)?$`
	WorkloadSourceSpoofing string `json:"workloadSourceSpoofing,omitempty" validate:"omitempty,oneof=Disabled Any"`

	// MTUIfacePattern is a regular expression that controls which interfaces Felix should scan in order
	// to calculate the host's MTU.
	// This should not match workload interfaces (usually named cali...).
	// +optional
	MTUIfacePattern string `json:"mtuIfacePattern,omitempty" validate:"omitempty,regexp"`

	// FloatingIPs configures whether or not Felix will program non-OpenStack floating IP addresses.  (OpenStack-derived
	// floating IPs are always programmed, regardless of this setting.)
	//
	// +optional
	FloatingIPs *FloatingIPType `json:"floatingIPs,omitempty" validate:"omitempty"`

	// WindowsManageFirewallRules configures whether or not Felix will program Windows Firewall rules (to allow inbound access to its own metrics ports). [Default: Disabled]
	// +optional
	WindowsManageFirewallRules *WindowsManageFirewallRulesMode `json:"windowsManageFirewallRules,omitempty" validate:"omitempty,oneof=Enabled Disabled"`

	// GoGCThreshold Sets the Go runtime's garbage collection threshold.  I.e. the percentage that the heap is
	// allowed to grow before garbage collection is triggered.  In general, doubling the value halves the CPU time
	// spent doing GC, but it also doubles peak GC memory overhead.  A special value of -1 can be used
	// to disable GC entirely; this should only be used in conjunction with the GoMemoryLimitMB setting.
	//
	// This setting is overridden by the GOGC environment variable.
	//
	// [Default: 40]
	// +optional
	GoGCThreshold *int `json:"goGCThreshold,omitempty" validate:"omitempty,gte=-1"`

	// GoMemoryLimitMB sets a (soft) memory limit for the Go runtime in MB.  The Go runtime will try to keep its memory
	// usage under the limit by triggering GC as needed.  To avoid thrashing, it will exceed the limit if GC starts to
	// take more than 50% of the process's CPU time.  A value of -1 disables the memory limit.
	//
	// Note that the memory limit, if used, must be considerably less than any hard resource limit set at the container
	// or pod level.  This is because felix is not the only process that must run in the container or pod.
	//
	// This setting is overridden by the GOMEMLIMIT environment variable.
	//
	// [Default: -1]
	// +optional
	GoMemoryLimitMB *int `json:"goMemoryLimitMB,omitempty" validate:"omitempty,gte=-1"`

	// GoMaxProcs sets the maximum number of CPUs that the Go runtime will use concurrently.  A value of -1 means
	// "use the system default"; typically the number of real CPUs on the system.
	//
	// this setting is overridden by the GOMAXPROCS environment variable.
	//
	// [Default: -1]
	// +optional
	GoMaxProcs *int `json:"goMaxProcs,omitempty" validate:"omitempty,gte=-1"`
}

type HealthTimeoutOverride struct {
	Name    string          `json:"name"`
	Timeout metav1.Duration `json:"timeout"`
}

type RouteTableRange struct {
	Min int `json:"min"`
	Max int `json:"max"`
}

type RouteTableIDRange struct {
	Min int `json:"min"`
	Max int `json:"max"`
}

type RouteTableRanges []RouteTableIDRange

func (r RouteTableRanges) NumDesignatedTables() int {
	var len int = 0
	for _, rng := range r {
		len += (rng.Max - rng.Min) + 1 // add one, since range is inclusive
	}

	return len
}

// ProtoPort is combination of protocol, port, and CIDR. Protocol and port must be specified.
type ProtoPort struct {
	Protocol string `json:"protocol,omitempty"`
	Port     uint16 `json:"port"`
	// +optional
	Net string `json:"net,omitempty"`
}

// New FelixConfiguration creates a new (zeroed) FelixConfiguration struct with the TypeMetadata
// initialized to the current version.
func NewFelixConfiguration() *FelixConfiguration {
	return &FelixConfiguration{
		TypeMeta: metav1.TypeMeta{
			Kind:       KindFelixConfiguration,
			APIVersion: GroupVersionCurrent,
		},
	}
}
