Service hierarchy
=================

Service		org.chromium.flimflam
Interface	org.chromium.flimflam.Service
Object path	[variable prefix]/{service0,service1,...}

Methods		dict GetProperties()

			Return the properties for the service object. See
			the Properties section for available properties.

		void SetProperty(string name, variant value)

			Change the value of the specified property. Only
			properties that are listed as read-write are
			changeable. On success a PropertyChanged signal
			will be emitted.

			Possible Errors: [service].Error.InvalidArguments
					 [service].Error.InvalidProperty
					 [service].Error.InvalidService
					 [service].Error.InvalidPassphrase

		void SetProperties(dict properties)

			Set multiple properties in a Service at once.
			Each property from the dict is applied, excluding
			the "Profile" property and all properties intrinsic
			to the service including "Type" for all services,
			as well as "Mode", "SSID" and "Security" for WiFi
			services.  In the event of multiple errors while
			applying properties to the service, the first error
			code is returned by this call.

			Possible Errors: [service].Error.InvalidArguments
					 [service].Error.InvalidProperty
					 [service].Error.InvalidService
					 [service].Error.InvalidPassphrase

		void ClearProperty(string name)

			Clear the value of the specified property. Only
			properties that are listed as read-write are
			changeable. On success a PropertyChanged signal
			will be emitted.

			Possible Errors: [service].Error.InvalidArguments
					 [service].Error.InvalidProperty

		array{bool} ClearProperties(array{string} names)

			Clear the value of the specified properties.  Calls
			ClearProperty above on each of the property names
			and returns an array of boolean values indicating
			whether each ClearProperty attempt succeeded.

		void Connect()

			Initiate a connection for the specified service. The
			service will not necessarily be in a connected/online
			state by the time this call returns; clients that are
			interested must continue to watch the service state.

			For Ethernet devices this method can only be used
			if it has previously been disconnected. Otherwise
			the plugging of a cable automatically triggers
			a connection.  If no cable is plugged in this
			method will fail.

			If the requested service is already connected
			then this request is ignored and AlreadyConnected
			is returned.

			If the requested service is in the process of
			connecting then this request is ignored and
			InProgress is returned.

			If another service of the same type is connected or
			connecting then it is terminated before this request
			is handled.

			If the requested service is currently disconnecting (in
			state "disconnecting") and is connectable, this call will
			immediately return successfully. Once the disconnection
			completes, a new connection will be triggered. Multiple
			Connect attempts in this case will not cause any different
			behavior.

			If the requested service cannot, for reasons not
			described above, be connected, OperationFailed is
			returned.

			Possible Errors: [service].Error.AlreadyConnected
					 [service].Error.InProgress
					 [service].Error.OperationAborted
					 [service].Error.InvalidService
					 [service].Error.OperationFailed

		void Disconnect()

			Initiate a Service disconnection. If this call returns
			successfully, the Service will either be in state "idle"
			or state "disconnecting". If the Service is in state
			"disconnecting", clients that care about the disconnect
			completion should watch for the state to reach "idle".

			If the Service is neither connected nor in the process of
			connecting, a NotConnected error will be returned.

			For Ethernet devices, this will remove all
			Layer 3 state and mark the associated network
			interface down.  If no cable is plugged in this
			request will fail.

			This method can also be used to abort a previous
			connection attempt via the Connect method.

			Possible Errors: [service].Error.InvalidArguments
					 [service].Error.NotConnected

		void Remove()

			Disconnect and remove the configuration of a
			service.  This disassociates the service from
			its current profile.  If another profile supports
			this service, it will be re-configured there.

			This method is not permitted for Ethernet devices;
			it will generate a NotSupported error response.

			Possible Errors: [service].Error.InvalidArguments
					 [service].Error.NotSupported

		void ActivateCellularModem(string carrier)

			Deprecated, do not use.

			Expected Result: [service].Error.NotSupported

		void CompleteCellularActivation()

			Complete the activation of a cellular service that is
			being activated over a non-cellular network.  This
			method is called upon the completion of the online
			payment portal and performs the necessary checks
			to ensure the activation process has fully completed.

			This method returns immediately.  The caller
			can either poll the Cellular.ActivationState
			property, or monitor the PropertyChanged
			signal to know when and if the activation process
			has completed.

			If this method is called on a non-cellular service
			or on a cellular service that is not being activated
			over a non-cellular network, it will return a
			NotSupported error.

			If the cellular service is already activated or being
			activated, nothing is returned.

			Possible Errors: [service].Error.NotSupported

		dict GetLoadableProfileEntries()

			Return a dictionary of object_path -> string pairs
			which refer to the profile entries from the loaded
			profiles in the Manager that could possibly provide
			configuration for this service.  Each entry contains
			the DBus path of the profile and the string entry
			name (within that profile) that contains configuration
			for this service.  Callers can use each of these
			argument pairs to do a "GetEntry" call on each profile
			object.

		string GetWiFiPassphrase()

			Return the passphrase for a given WiFi network if it
			has one.  This will return a NotSupported error if
			called on a Service which is not WiFi, or if there is
			no saved passphrase.  This is included as a separate
			method instead of a property to help ensure that the
			passpharse isn't accidentally leaked to the UI or
			included in logs.

			Possible Errors: [service].Error.NotSupported

Signals		PropertyChanged(string name, variant value)

			This signal indicates a changed value of the given
			property.


Properties	string ArcVpn.TunnelChrome [writeonly]

			(VPN services of type arcvpn only) Specify whether
			the service should tunnel Chrome traffic.  This
			is used to implement the
			VpnService.Builder.addAllowedApplication() and
			VpnService.Builder.addDisallowedApplication() APIs.
			If "true", the service will configure routes and
			DNS settings for Chrome OS.  If "false", the service
			will not configure routes or DNS settings, but it
			will still be set as the default service and the
			Chrome UI will display it as a connected VPN.

			The current value of this property is readable
			in the "Provider" property of this service.

		boolean AutoConnect [readwrite]

			If set to true, this service will auto-connect
			when no other connection is available.  If multiple
			services are marked for auto-connect then the highest
			priority available service will be selected.

			On a successful connection, this property may be
			set to true automatically, depending on the service
			type and if this property was not explicitly set on
			the service before.

		boolean Cellular.ActivateOverNonCellularNetwork [readonly]

			(Cellular only) If set to true, this service must be
			activated over a non-cellular network instead of the
			same cellular network.

		string Cellular.ActivationState [readonly]

			(Cellular only) The activate state of the device
			on the cellular network.  Possible values for
			activate_state are:
			   "not-activated"
			   "activating"
			   "partially-activated"
			   "activated"

			A CDMA device can be activated by calling the
			Activate method.

			This property is relevant only for services
			associated with a CDMA cellular device.

		string Cellular.EID [readonly]

			(Cellular only) The EUICCID (Embedded Universal
			Integrated Circuit Card Identifier) of the eSIM card
			associated with the service if applicable.

		string Cellular.ICCID [readonly]

			(Cellular only) The Integrated Circuit Card Identifier
			of the SIM associated with the service.

		string Cellular.IMSI [readonly]

			(Cellular only) The International Mobile Subscriber
			Identity of the SIM associated with the service.
			All Cellular Services are uniqulely tied to an IMSI.
			(If no IMSI is available, a shared entry with an empty
			IMSI will be used to persist service properties).

		dict Cellular.ServingOperator [readonly] [GSM only]
			(Cellular only) Description of the operator on whose
			network the modem is currently registered, if any.
			The dictionary may contain the following string-valued
			properties:

			"name"       The operator name
			"country"    The two-letter country code.
			"network_id" The MCC (Mobile Country Code)
				     and MNC (Mobile Network Code) of the
				     operator on whose network the device is
				     registered. The value of the property is
				     the simple concatenation of the MCC and
				     the MNC, with no separator. The first
				     three digits are always the MCC, and
				     the following two or three digits are the
				     MNC.

		string Cellular.NetworkTechnology [readonly]

			(Cellular only) If the modem is registered on a
			network, then this property gives the data bearer
			technology currently in use.  The following
			table lists the values this property may have,
			along with a rough indication of the "generation"
			to which the technology is considered to belong.

			Value          Generation
			-----------------------------
			"1xRTT" (CDMA) 2.5G
			"EVDO" (CDMA)  3G to 3.5G
			"GPRS"         2.5G
			"EDGE"         2.75G
			"UMTS"         3G
			"HSPA"         3.5G
			"HSPA+"        3.75G
			"LTE"          3.9G
			"LTE Advanced" 4G

		string Cellular.RoamingState [readonly]

			(Cellular only) The roaming status of the modem on
			the current network. Possible values are "home",
			"roaming", and "unknown".

		string Cellular.Olp [readonly]

			(Cellular only) A dictionary describing the
			online payment portal (OLP) at which a user
			can sign up for, or modify, a mobile data
			plan.  The value of this property is a
			string -> string dictionary, which includes
			the following keys:

			"url"      The URL for the portal
			"method"   The HTTP method to use, "GET" or "POST"
			"postdata" If the method is POST then this key is
				   present and contains the postdata
				   to send.

		dict Cellular.APN [readwrite] [GSM only]

			(Cellular only) The APN to be used with a GSM
			carrier for making data connections. The value of
			this property is a string -> string dictionary,
			which must include at least the following key:

			"apn"  The APN to use for making connections

			There are three optional properties. The first is

			"network_id" The network ID (MCC/MNC pair) of the
				     network for which the APN should be used.
				     If not specified, then the network ID of
				     the currently registered network is used.

			The other two optional properties are "username"
			and "password", which, if specified, will be supplied
			to the connect operation on the modem along with the
			APN.

			When the APN is set using this method, it overrides
			any APN that may be associated with the specified
			network ID in the APN database. The APN setting is
			persistent across reboots.

			A user-specified APN may be cleared by clearing this
			property.

			The algorithm for connecting to GSM networks is as
			follows, stopping when a connection is succesfully
			established:
			1. Try the last APN that resulted in a successful
			   connection.
			2. Try the APN that was set from the Cellular.APN
			   property (if any).
			3. Try the list of APNs for the current provider one
			   at a time. The list comes from the mobile broadband
			   provider information database.
			4. As a last resort, try connecting without specifying
			   an APN.

			If all these steps fail, then the connect attempt fails.
			Whenever this property is set to establish a new APN to
			use, the remembered last-good-APN is cleared. The
			remembered last-good-APN is persistent across reboots.

		dict Cellular.LastGoodAPN [readonly] [GSM only]

			(Cellular only) The APN information used in the
			last successful connection attempt.  If the last
			attempt was unsuccesful, this property is unset.
			The format of this property is the same as for
			the Cellular.APN property.

		boolean Cellular.OutOfCredits [readonly]

			(Cellular only) Indicates whether a cellular service
			has any remaining bandwidth credits with the carrier.

		string Cellular.PPP.Username [readwrite]
			(Cellular only) For cellular devices with a PPP
			link-layer, the username for PPP authentication.

		string Cellular.PPP.Password [writeonly]
			(Cellular only) For cellular devices with a PPP
			link-layer, the password for PPP authentication.

		string CheckPortal [readwrite]

			Control captive portal checking.  Possible values
			are "true", "false", and "auto" (default).
			When set to "auto" captive portal checking is
			controlled by Manager.CheckPortalList (which
			is a per-technology mask/list of which services
			should do captive portal checking).

		boolean Connectable [readonly]

			Indicates whether a service is prepared for use
			as an argument to the Connect method.  A service
			will not be marked Connectable if, for example,
			it is missing necessary security credentials.
			Clients may use this property to not disable
			services or to mark them in some way to indicate
			they are present but not usable.

		string Country [readonly]

			(WiFi only) Indicates the 2-letter country code
			reported by the representative endpoint for this
			service.

		object Device [readonly]

			The object path of the associated device.
			This value may be used to retrieve and manipulate
			Layer 3 configuration state.

			A value of "/" indicates that the service is
			not bound to any device.

		string DHCPProperty.Hostname [readwrite]

			This per-service property is supported in Shill for
			go/jetstream. It is not used in Chrome OS. The value
			will override the Manager property for this service
			if set. See Manager for details about the property.

		string DHCPProperty.VendorClass [readwrite]

			This per-service property is supported in Shill for
			go/jetstream. It is not used in Chrome OS. The value
			will override the Manager property for this service
			if set. See Manager for details about the property.

		array{string} Diagnostics.Disconnects [readonly]

			History (wall-clock timestamps) of connection drops.

		array{string} Diagnostics.Misconnects [readonly]

			History (wall-clock timestamps) of failed connection
			attempts.

		string EAP.Identity [readwrite]

			The client identity string used in setting up
			services of type "802_1x".

			This property is included in get requests only
			when the requester has sufficient privileges.

		string EAP.EAP [readwrite]

			The EAP methods that will be accepted when setting
			up services of type "802_1x".

			This property is included in get requests only
			when the requester has sufficient privileges.

		string EAP.InnerEAP [readwrite]

			The authentication methods that will be on the
			inside of a PEAP or EAP-TTLS tunnel.

			This property is included in get requests only
			when the requester has sufficient privileges.

		string EAP.TLSVersionMax [readwrite]

			Specifies "1.0", "1.1", or "1.2" to indicate the
			highest TLS version that wpa_supplicant should try
			to negotiate.

			The default (empty string) selects the highest
			protocol version supported by wpa_supplicant.
			This is the recommended setting; sometimes it
			needs to be changed to improve interoperability
			with buggy RADIUS servers that advertise TLSv1.2
			compatibility but break when negotiating a TLSv1.2
			session.

			This property is included in get requests only
			when the requester has sufficient privileges.

		string EAP.AnonymousIdentity [readwrite]

			The client identity string that will be used
			for the outer EAP authentication for tunneled
			methods such as PEAP and EAP-TTLS.

			This property is included in get requests only
			when the requester has sufficient privileges.

		string EAP.CertID [readwrite]

			The PKCS#11 identifier of the client certificate
			to use when setting up services of type "802_1x".

			This property is included in get requests only
			when the requester has sufficient privileges.

		string EAP.KeyID [readwrite]

			The PKCS#11 identifier of the private key to
			use when setting up services of type "802_1x".

			This property is included in get requests only
			when the requester has sufficient privileges.

		string EAP.CACertID [readwrite]

			The PKCS#11 ID of the certificate file for
			validating server certificate received during
			the 802.1x authentication process.

			This property is included in get requests only
			when the requester has sufficient privileges.

		array{string} EAP.CACertPEM [readwrite]

                        A list of x509 CA certificates in PEM format;
                        specifically the base64 counterpart of the DER contents
                        surrounded by a "-----BEGIN CERTIFICATE-----" and
			"-----END CERTIFICATE-----" line.  These certificates
			will be used to authenticate the remote RADIUS
			server in the 802.1x authentication process.

		boolean EAP.UseSystemCAs [readwrite]

			Control whether EAP operations are
			configured to use the system's installed set
			of certificate authorities when validating
			server certificates. Note that if UseSystemCAs
			is false and no CA is specified with
			EAP.CaCertID - that is, no CAs are configured
			at all - server certificates will not have their
			signatures checked. Defaults to true.

			This property is included in get requests only
			when the requester has sufficient privileges.

		string EAP.PIN [readwrite]

			The PIN used to authenticate to the PKCS#11 device
			to retrieve a client certificate, private key,
			or certificate authority certificate.

			This property is included in get requests only
			when the requester has sufficient privileges.

		string EAP.Password [readwrite]

			The password to use in 802.1x authentication.

			This property is included in get requests only
			when the requester has sufficient privileges.

		string EAP.KeyMgmt [readwrite]

			(WiFi only) The key management algorithm to be
			used in 802.1x authentication.	If this property
			is not set then "WPA-EAP" is used for the key
			management algorithm.

			This property is included in get requests only
			when the requester has sufficient privileges.

		array{string} EAP.RemoteCertification [readonly]

			(WiFi only) The list of certificate subject names
			reported by the remote RADIUS server.  This
			property is set during 802.1x negotiation and
			persists after disconnection for later inspection,
			but is not persisted between connection manager
			restarts.  It is also cleared at the beginning of
			the next connection.

		string EAP.SubjectMatch [readwrite]

			(WiFi only) A substring which the remote
			RADIUS server certificate subject name must
			contain.  If the subject does not contain this
			substring, abort 802.1x negotiation.

		array{string} EAP.SubjectAlternativeNameMatch [readonly]

			(WiFi only) A list of serialized subject alternative
			names (SANs). Each SAN is defined by a type and a
			value. SAN type can be "EMAIL", "DNS" or "URI"
			according to the types supported by wpa_supplicant.
			For more information about specifying SANs please
			refer to:
			https://w1.fi/cgit/hostap/plain/wpa_supplicant/wpa_supplicant.conf
			SANs are JSON strings, with "Type" and "Value" keys.
			SANs are used by wpa_supplicant to be matched against
			the SAN of an authentication server certificate. The
			server certificate is only accepted if it contains one
			of these alternative subject names.

		string Error [readonly]

			The service error status details.

			When error occur during connection or disconnection
			the detailed information are represented in this
			property to help the user interface to present the
			user with alternate options.

			This property is only valid when the service is in a
			failure state. Otherwise it might be empty or not
			present at all.

			Look for "Flimflam error options" in
			system_api/dbus/shill/dbus-constants.h for the set of
			defined error codes.

		string ErrorDetails [readonly]

			Free-style service error status details in addition to
			the defined error codes presented through the
			Service.Error property. For example, this property may
			contain a server-supplied error description for a
			rejected VPN connection attempt.

			This property is only valid when the service is in a
			failure state. Otherwise it might be empty or not
			present at all.

		string GUID [readwrite]

			The Globally Unique IDentifier for the service.
			This value may be set by a client and is
			intended for cross-referencing Service objects
			to externally-maintained data.

		object IPConfig [readonly]

			The object path of the associated IP configuration.
			This value only exists when the service is connected,
			and is used used to retrieve Layer 3 configuration
			state.  A PropertyChanged signal for this object path
			is emitted every time the IP address is configured
			(for example during DHCP renewals), although the
			actual value may not have changed.

		boolean IsConnected [readonly]

			Will be true if this service is in some connected state
			(i.e. configured to the point where network traffic can be
			sent through it). Note that this can be true before portal
			detection has completed, or if a previous portal detection
			attempt failed.

		string L2TPIPsec.CACertPEM [writeonly]

			(VPN Services of type l2tpipsec only) The list of
			x509 CA certificates to be used to verify the remote
			server.  Any of these certificates can directly sign
			the server certificate.  Each x509 CA certificate
			must be in in PEM format; specifically
			the base64 counterpart of the DER contents, optionally
			surrounded by a "-----BEGIN CERTIFICATE-----" and
			"-----END CERTIFICATE-----" line.  The current value
			of this property is readable in the "Provider" property
			of this Service.

		string L2TPIPsec.ClientCertID [writeonly]

			(VPN Services of type l2tpipsec only) PKCS#11 key ID with client
			certificate. Required to be set when certificate-based IPsec
			authentication is used. The current value of this property is
			readable in the "Provider" property of this Service.

		string L2TPIPsec.ClientCertSlot [writeonly]

			(VPN Services of type l2tpipsec only) PKCS#11 slot with client
			certificate. If certificate-based IPsec authentication is used but
			this is not set, the default value of "0" will be used. The current
			value of this property is readable in the "Provider" property of
			this Service.

		string L2TPIPsec.LCPEchoDisabled [writeonly]

			(VPN Services of type l2tpipsec only) If "true", the l2tp layer will
			not presume the connection to be dead if LCP echo requests
			continuously fail to get valid echo replies.  The current value of
			this property is readable in the "Provider" property of this
			Service.

		string L2TPIPsec.Password [writeonly]

			(VPN Services of type l2tpipsec only) The password at the l2tp
			layer. This property must be set.

		string L2TPIPsec.PIN [writeonly]

			(VPN Services of type l2tpipsec only) PKCS#11 user PIN. Required to
			be set when certificate-based IPsec authentication is used. The
			current value of this property is readable in the "Provider"
			property of this Service.

		string L2TPIPsec.PSK [writeonly]

			(VPN Services of type l2tpipsec only) Pre-shared key value when
			PSK-based authentication is used.

		string L2TPIPsec.PSKRequired [readonly]

			(VPN Services of type l2tpipsec only) Indicates whether no
			credentials were provided (cert or psk), meaning that the
			configuration is incomplete. The current value of this property is
			readable in the "Provider" property of this Service.

		string L2TPIPsec.User [writeonly]

			(VPN Services of type l2tpipsec only) The username at the l2tp
			layer. This property must be set. The current value of this property
			is readable in the "Provider" property of this Service.

		string L2TPIPsec.TunnelGroup [writeonly]

			(VPN Services of type l2tpipsec only) The Cisco Tunnel Group Name,
			if used. The current value of this property is readable in the
			"Provider" property of this Service.

		string L2TPIPsec.XauthPassword [writeonly]

			(VPN Services of type l2tpipsec only) The XAUTH password if XAUTH is
			used. If this property is set, L2TPIPsec.XauthUser must also be
			set. In addition, since XAUTH is an extension rather than
			replacement of psk, L2TPIPsec.PSK must also be set.

		string L2TPIPsec.XauthUser [writeonly]

			(VPN Services of type l2tpipsec only) The XAUTH user if XAUTH is
			used. If this property is set, L2TPIPsec.XauthPassword must also be
			set. In addition, since XAUTH is an extension rather than
			replacement of psk, L2TPIPsec.PSK must also be set.

		boolean LinkMonitorDisable [readwrite]

			Specifies whether to disable or enable link monitoring
			for this service. When link monitor is enabled, periodic
			ARP to the gateway IP address will be performed.

		boolean ManagedCredentials [readwrite]

			Specifies whether the credentials for this service
			are managed outside of shill, and are validated
			in some manner other than by the user.  As such, these
			credentials need not be validated via an initial
			connection attempt.  Even without this validation,
			the service will be considered of equal priority to
			other services that have been connected before.

		boolean Metered [readwrite]

			Whether or not this service is metered. If the user sets
			this value, then Shill will store that setting for the
			service. If the user does not set this value, then Shill
			will try to infer whether or not the network is metered
			based on details such as tethering state and technology
			type.

			If this value is cleared, then the property will revert
			to being automatically inferred.

		string Mode [readonly]

			If the service type is "wifi", then this property is
			present and contains the mode of the network. The
			only possible value is "managed".

			This property is present only for WiFi services.

		string Name [readonly]

			The service name (for example "Wireless" etc.)

			This name can be used for directly displaying it in
			the application. It has pure informational purpose.

			For Ethernet devices and hidden WiFi networks it is
			not guaranteed that this property is present. For
			visible WiFi networks, this may contain the SSID.

			See also the WiFi.HexSSID property.

		string ObjectPathSuffix [writeonly]

			(VPN services of type thirdpartyvpn only) Specify
			the DBus object path suffix used for the
			ThirdPartyVpn interface.  For instance, if
			ObjectPathSuffix is "12345", ThirdPartyVpn methods
			and signals would use the path
			"/thirdpartyvpn/12345".  This is typically a
			hex-encoded SHA256 of the VPN app's extension ID
			concatenated with the connection name, but
			any unique identifier that follows the DBus
			object path naming scheme will suffice.

		string OpenVPN.Auth [writeonly]

			(VPN services of type OpenVPN only) Specify the
			authentication algorithm to OpenVPN.
			See the "--auth" option in the OpenVPN documentation.
			The current value of this property is readable
			in the "Provider" property of this service.

		string OpenVPN.AuthNoCache [writeonly]

			(VPN services of type OpenVPN only) If this value
			is set to anything, do not cache usernames or passwords
			in the OpenVPN client.  See the "--auth" flag in the
			OpenVPN documentation.  The current value of this
			property is readable in the "Provider" property of this
			service.

		string OpenVPN.AuthRetry [writeonly]

			(VPN services of type OpenVPN only) Specify how to
			handle authentication failures.
			See the "--auth-retry" option in the OpenVPN
			documentation.  The current value of this property
			is readable in the "Provider" property of this service.

		string OpenVPN.AuthUserPass [writeonly]

			(VPN services of type OpenVPN only) Authenticate
			with username and password if this option is non-empty.
			For this option to work, the "OpenVPN.User" property
			must also be set.  The current value of this property
			is readable in the "Provider" property of this service.

		array{string} OpenVPN.CACertPEM [writeonly]

			(VPN services of type OpenVPN only) The list of
			x509 CA certificates to be used to verify the remote
			server.  Any of these certificates can directly sign
			the server certificate.  Each x509 CA certificate
			must be in in PEM format; specifically
			the base64 counterpart of the DER contents, optionally
			surrounded by a "-----BEGIN CERTIFICATE-----" and
			"-----END CERTIFICATE-----" line.  The current value
			of this property is readable in the "Provider" property
			of this service.

			If unspecified, the systemwide CA list in
			/etc/ssl/certs/ca-certificates.crt will be used to
			validate the remote server.

		string OpenVPN.Cipher [writeonly]

			(VPN services of type OpenVPN only) Specify the
			cipher algorithm for encrypted packets.  See the
			"--cipher" option in the OpenVPN documentation.
			The current value of this property is readable in
			the "Provider" property of this service.

		string OpenVPN.CompLZO [writeonly]

			Deprecated, do not use. Use OpenVPN.Compress instead.

			(VPN services of type OpenVPN only) If non-empty,
			enable fast LZO compression.  See the
			"--comp-lzo" option in the OpenVPN documentation.
			The current value of this property is readable in
			the "Provider" property of this service.

		string OpenVPN.CompNoAdapt [writeonly]

			Deprecated, do not use.

			(VPN services of type OpenVPN only) If non-empty,
			don't use adaptive compression when fast LZO
			is enabled compression.  See the "--comp-noadapt"
			option in the OpenVPN documentation.  The current
			value of this property is readable in the "Provider"
			property of this service.

		string OpenVPN.Compress [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			specifies the algorithm to be used for compression.
			Possible values for --compress option are:
			   "" (Compression framing only)
			   "lz4"
			   "lz4-v2"
			   "lzo"
			See the "--compress" option in the OpenVPN
			documentation. The current value of this property is
			readable in the "Provider" property of this service.

		array{string} OpenVPN.ExtraCertPEM [writeonly]

			(VPN services of type OpenVPN only) A list of
			additonal x509 CA certificates to be used to complete
			the certificate authentication chain from the CA
			certificates.  Each x509 CA certificate must be in in
			PEM format; specifically the base64 counterpart of
			the DER contents, optionally surrounded by a
			"-----BEGIN CERTIFICATE-----" and
			"-----END CERTIFICATE-----" line.  The current
			value of this property is readable in the "Provider"
			property of this service.

		array{string} OpenVPN.ExtraHosts [writeonly]

			(VPN services of type OpenVPN only) A list of
			additional hosts that the client will try connecting
			to in the event that it cannot connect to
			Provider.Host. The client will attempt connection
			with hosts in the order they appear in the array.
			The current value of this property is readable in
			the "Provider" property of this service.

		string OpenVPN.IgnoreDefaultRoute [writeonly]

			(VPN services of type OpenVPN only) If set, a
			default route to the default gateway specified by
			the server will not be configured.  This allows this
			connection to operate as a "split tunnel" in
			configurations where the server allows this.  Since
			this option does not ignore routes explicitly pushed
			from the server, this option does not allow split
			tunnels when they are expressly forbidden in the
			server configuration.  The server can directly
			override this option by pushing a "redirect-gateway"
			or "redirect-private" option to the client.  The
			current value of this property is readable in the
			"Provider" property of this service.

		string OpenVPN.KeyDirection [writeonly]

			(VPN services of type OpenVPN only) If set, this
			value is passed in as the "--key-direction" option
			to OpenVPN.  It allows each data flow direction
			to use a different set of HMAC and cipher keys,
			eliminating certain kinds of DoS and message replay
			attacks.  Refer to the OpenVPN documentation for more
			details.

		string OpenVPN.NsCertType [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			specifies that the peer certificate must be signed
			with an explicit nsCertType designation.  The value
			assigned to this property specified the role that
			should be assigned to the certificate.  See the
			"--ns-cert-type" option in the OpenVPN documentation.
			The current value of this property is readable in the
			"Provider" property of this service.

		string OpenVPN.OTP [writeonly]

			(VPN services of type OpenVPN only) Specifies a
			one-time-password (OTP) to be used during the
			authentication phase.  The connection manager only
			stores this value for the duration of a connection
			attempt and will never persist this to a stored
			profile.

		string OpenVPN.Password [writeonly]

			(VPN services of type OpenVPN only) Specifies a
			password to be used during the authentication phase.

		string OpenVPN.Pkcs11.ID [writeonly]

			(VPN services of type OpenVPN only) Specify the
			PKCS11 certificate id when using a crypto token
			to perform certificate authentication.

		string OpenVPN.Pkcs11.PIN [writeonly]

			(VPN services of type OpenVPN only) Specifies a
			PIN used to gain access to the cryptographic token
			when using the "OpenVPN.Pkcs11.ID" property.

		string OpenVPN.Ping [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			this specifies the period in seconds between sending
			pings to the OpenVPN server.  See the "--ping" option
			in the OpenVPN documentation.  The current value of
			this property is readable in the "Provider" property
			of this service.

		string OpenVPN.PingExit [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			exit if this many seconds pass without reception
			of a ping reply from the OpenVPN server.  See the
			"--ping-exit" option in the OpenVPN documentation.
			The current value of this property is readable in the
			"Provider" property of this service.

		string OpenVPN.PingRestart [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			restart if this many seconds pass without reception
			of a ping reply from the OpenVPN server.  See the
			"--ping-restart" option in the OpenVPN documentation.
			The current value of this property is readable in the
			"Provider" property of this service.

		string OpenVPN.Port [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			use this port for both the local and remote.
			See the "--port" option in the OpenVPN documentation.
			The current value of this property is readable in the
			"Provider" property of this service.

		string OpenVPN.Proto [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			sets the protocol ("udp", "tcp-client", "tcp-server)
			for the OpenVPN connection.  See the "--proto" option
			in the OpenVPN documentation.  The current value of
			this property is readable in the "Provider" property
			of this service.

		string OpenVPN.PushPeerInfo [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			specifies that client information should be pushed
			to the server.  See the "--push-peer-info" option
			in the OpenVPN documentation.  The current value of
			this property is readable in the "Provider" property
			of this service.

		string OpenVPN.RemoteCertEKU [writeonly]

			(VPN services of type OpenVPN only) Require that
			the remote peer certificate be signed with the
			specified extended key usage OID.  See the
			"--remote-cert-eku" option in the OpenVPN
			documentation.  The current value of this property
			is readable in the "Provider" property of this service.

		string OpenVPN.RemoteCertKU [writeonly]

			(VPN services of type OpenVPN only) Require that
			the remote peer certificate be signed with the
			specified key usage in hex format.  See the
			"--remote-cert-ku" option in the OpenVPN
			documentation.  The current value of this property
			is readable in the "Provider" property of this service.

		string OpenVPN.RemoteCertTLS [writeonly]

			(VPN services of type OpenVPN only) Require that
			the remote peer certificate be signed with the
			specified key usage and extend key usage based on
			RFC3280 TLS rules.  See the "--remote-cert-tls" option
			in the OpenVPN documentation.  The current value of
			this property is readable in the "Provider" property
			of this service.

		string OpenVPN.RenegSec [writeonly]

			(VPN services of type OpenVPN only) Specifies the
			period (in seconds) to re-negotiate the data channel
			key.  See the "--reneg-sec" option in the OpenVPN
			documentation.  The current value of this property is
			readable in the "Provider" property of this service.

		string OpenVPN.ServerPollTimeout [writeonly]

			(VPN services of type OpenVPN only) Specifies the
			period (in seconds) to wait to for a response from
			the server.  See the "--server-poll-timeout" option
			in the OpenVPN documentation.  The current value of
			this property is readable in the "Provider" property
			of this service.

		string OpenVPN.Shaper [writeonly]

			(VPN services of type OpenVPN only) Restricts the
			number of bytes per second to be output to the peer.
			See the "--shaper" option in the OpenVPN documentation.
			The current value of this property is readable in the
			"Provider" property of this service.

		string OpenVPN.StaticChallenge [writeonly]

			(VPN services of type OpenVPN only) Enable static
			challenge/response protocol.  See the
			"--static-challenge" option in the OpenVPN
			documentation.  The current value of this property
			is readable in the "Provider" property of this service.

		string OpenVPN.TLSAuth [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			passes this as the "--tls-auth" argument to OpenVPN.
			The current value of this property is readable in the
			"Provider" property of this service.

		string OpenVPN.TLSAuthContents [writeonly]

			(VPN services of type OpenVPN only) Creates a
			temporary file with the contents of this property
			and passes it to OpenVPN using the "--tls-auth"
			option.  The current value of this property
			is readable in the "Provider" property of this service.

		string OpenVPN.TLSRemote [writeonly]

			(VPN services of type OpenVPN only) If specified,
			the common name on the X509 certificate presented
			by the peer will be matched against the contents of
			this property.  This property can specify a full
			hostname or a prefix.  Its contents will be passed
			into OpenVPN using the "--verify-x509-name" option,
			with a type of "name-prefix".  This mimics the
			behavior of the now-removed "--tls-remote" option.
			The current value of this property is readable in
			the "Provider" property of this service.

		string OpenVPN.Token [writeonly]

			(VPN services of type OpenVPN only) Specifies a
			single-use token to be used during the static challenge
			phase of authentication.  This will be used instead of
			the standard OpenVPN "SCRV1:" response containing the
			password and OTP parameters.  This is useful in
			installations where the default base64 encoding may be
			too large to fit in the buffer size available, and
			server implementations have been changed to avoid this.
			The connection manager only stores this value for the
			duration of a connection attempt and will never persist
			this to a stored profile.

		string OpenVPN.TLSVersionMin [writeonly]

			(VPN services of type OpenVPN only) Specifies the minimum
			TLS version to be used. The current value of this property
			is readable in the "Provider" property of this service.

		string OpenVPN.User [writeonly]

			(VPN services of type OpenVPN only) Specifies
			the username to be specified in authentication to
			the OpenVPN server.  The current value of this property
			is readable in the "Provider" property of this service.

		string OpenVPN.Verb [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			passes this as the "--verb" argument to OpenVPN,
			which sets the debug verbosity.  By default this
			value is set based on shill's debugging level for VPN.
			The current value of this property is readable in the
			"Provider" property of this service.

		string OpenVPN.VerifyHash [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			passes this as the "--verify-hash" argument to OpenVPN,
			which specifies the SHA1 fingerprint for level-1
			certificate.  The current value of this property is
			readable in the "Provider" property of this service.

		string OpenVPN.VerifyX509Name [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			passes this as the "--verify-x509-name" argument to
			OpenVPN, which specifies the X509 subject distinguished
			name we mandate the remote VPN server to have.  The
			current value of this property is readable in the
			"Provider" property of this service.

		string OpenVPN.VerifyX509Type [writeonly]

			(VPN services of type OpenVPN only) If non-empty,
			this string is passed as a second parameter to the
			"--verify-x509-name" flag sent to OpenVPN, which
			qualifies the type of parameter specified in the
			"OpenVPN.VerifyX509Name" property of this service.
			If the "OpenVPN.VerifyX509Name" property is unset or
			empty, setting this property has no effect during
			connection.  Please see the documentation of the
			"--verify-x509-name" flag in the OpenVPN documentation
			to better understand how these two parameters interact.
			The current value of this property is readable in the
			"Provider" property of this service.

		int PPPoE.LCPEchoFailure

			(PPPoE only) If set, the number of LCP echo responses
			that this service will tolerate missing from the PPP
			peer before terminating the connection.

		int PPPoE.LCPEchoInterval

			(PPPoE only) If set, used as the number of seconds
			between sending LCP echo requests to the PPP peer.

		int PPPoE.MaxAuthFailure

			(PPPoE only) The maximum number of authentication
			failures to allow before terminating the connection.  A
			value of 0 means no limit.  The default is 3.

		string PPPoE.Password

			(PPPoE only) This string is used as the password
			during authentication with a PPPoE server.  If empty,
			it will still be used during authentication if
			requested.

		string PPPoE.Username

			(PPPoE only) If non-empty, this string is used as the
			username during authentication with a PPPoE server.  If
			empty, it will still be used during authentication if
			requested.

		string Passphrase [readwrite]

			If the service type is "wifi", then this property
			holds a passphrase used in setting up services of
			type "wep", "wpa", "rsn", "wpa3", "psk", or a private
			key password used in setting up services of
			type "802_1x".

			For "wep" services, this must contain the WEP
			key and, optionally, a key index.  Only 40-bit
			and 104-bit WEP keys are supported.  The WEP
			key can be formatted either as an ASCII string
			(5 or 13 characters), or as ASCII hex digits
			(10 or 26). When using ASCII hex digits, the
			key may optionally be preceded by "0x" or "0X".
			To specify an optional WEP key index, prepend
			the key with "0:", "1:", "2:" or "3:".  If no
			index is specified, 0 is used.

			By default this property is not included in get
			requests.  It may be present if a non-default
			security policy is configured and the client has
			"read secret" privileges.

			Note that no PropertyChanged signals are sent for
			this property. The PassphraseRequired property
			should be monitored instead.

		boolean PassphraseRequired [readonly]

			If the service type is "wifi", then this property
			indicates if a passphrase or key (for WEP) is required.

			If a passphrase has been set already or if no
			passphrase is needed, then this property will
			be set to false.

			UI clients may monitor this property for a
			PropertyChanged signals to prompt for a required
			passphrase or key.

			[We will be supporting this soon for VPN]

		string PhysicalTechnology [readonly, optional]

			If the service type is "vpn" and the service is
			connected, this property is present and exposes the
			Type property of the underliying physical service used.
			Otherwise the property is not present.

		string PortalDetectionFailedPhase [readonly]

			Indicates the phase that portal detection was in
			when it last failed.

			Possible values:

				DNS - During DNS lookup
				Connection - during the TCP connection setup
				HTTP - during the HTTP connection setup
				Content - The content of the HTTP response
				Unknown - Failure in an unknown step

		string PortalDetectionFailedStatus [readonly]

			Indicates the portal detection failure reason when
			it last failed.

			Possible values:

				Failure - The attempt failed at this phase
				Success - The attempt succeeded at this phase
				Timeout - The attempt timed out at this phase

		string PortalDetectionFailedStatusCode [readonly]

			Provides the HTTP response status code from the last
			failed http portal detection probe.

		string PreviousError [readonly]

			The most recent service error status logged.  Even
			after the service leaves the failed state, this
			property retains the last value that the Error property
			contained.

			Note that no PropertyChanged signals are sent for
			this property. The Error property should be monitored
			instead.

		int32 PreviousErrorSerialNumber [readonly]

			This number increases by one every time a service
			failure is logged.  It returns to zero if shill
			restarts.

			Note that no PropertyChanged signals are sent for
			this property. The Error property should be monitored
			instead.

		int32 Priority [readwrite]

			An optional value used to calculate the priority order
			of this service.  Priorities are between 1 to 100.
			Services with priorities are sorted ahead of services
			without.  Services with the same priority are ordered
			by other means such as service type signal strength
			or security level.

			By default services are not assigned a priority;
			clients must set one if they desire.  To remove an
			existing priority use the ClearProperty method.

		string ProbeUrl [readonly]

			The probe URL that was used to find a redirect URL through
			captive portal detection.

		string Profile [readwrite]

			The object path of the associated Profile object.
			This may not be present or may be empty if the Service
			object has not been written to a profile yet.

		string ProxyConfig [readwrite]

			An externalized json dictionary describing the proxy
			configuration that can be stored on the service, and
			modified by a user.
			Flimflam does not use this information for anything,
			but it is left available to the caller, and stored
			persistently.
			This property may be set by any client and will be
			adopted by chrome during run-time.  If syntax of the
			value is wrong, chrome will ignore this property during
			runtime.
			The value of this property is a string -> string
			dictionary that includes the following keys. The final
			string is a comma separated list of key-value pairs
			enclosed by "{" and "}"; syntax of a key-value pair is:
			<key>":"<value>. Example:
			{"mode":"fixed-servers","server":"http=foopy:80"}

			"mode"
			    type of proxy that can be one of:
			    "direct" --
			      direct connection to network, other preferences
			      are ignored
			    "auto_detect" --
			      try to retrieve a PAC script from
			      http://wpad/wpad.dat or fall back to direct
			      connection
			    "pac_script" --
			      try to retrieve PAC script specified for "pac_url"
			      (see below) or fall back to direct connection
			    "fixed_servers" --
			      manual configuration of one or more servers
			      to be used as proxy

			"pac_url"
			    URL for proxy .pac file (meaningful only if mode=
			    pac_script); scheme of URL must be specified

			"pac_mandatory"
			    indciate if a valid PAC script is mandatory
			    (meaningful only if mode=pac_script);
			    value is either true or false (without quotes), e.g.
			    "pac_mandatory":true;
			    if true, network traffic does not fall back to
			    direct connections in case the PAC script is not
			    available

			"server"
			    proxy server for manual configuration (meaningful
			    only if mode=fixed-servers); syntax is
			    [<proxy-scheme>"://"]<proxy-host>[":"<proxy-port>];
			    if the proxy to use depends on the scheme of the
			    URL, specify a semicolon separated list of :
			    <url-scheme>"="<proxy-uri>
			    for example:
			    - "http=foopy:80;ftp=foopy2" --
			      use HTTP proxy "foopy:80" for http:// URLs, and
			      HTTP proxy "foopy2:80" for ftp:// URLS
			    - "foopy:80" -- use HTTP proxy "foopy:80" for all
			      URLs
			    - "socks4://foopy" --
			      use SOCKS v4 proxy "foopy:80" for all URLs

			"bypass_list"
			    proxy bypass rules for manual configuration
			    (meaningful only if mode=fixed-servers); format
			    can be any one of the following:
			    1) [<url_scheme>"://"]<hostname_pattern>[":"<port>]
			       Match all hostnames that match the pattern
			       hostname_pattern which can be a substring of the
			       hostname with asterisks.
			       Examples: "foobar.com", "*foobar.com",
			       "*.foobar.com", "*foobar.com:99",
			       "https://x.*.y.com:99"
			    2) "."<hostname_suffix_pattern>[":"<port>]
			       Match a particular domain suffix.
			       Examples: ".google.com", ".com",
			       "http://.google.com"
			    3) [<scheme>"://"]<ip_literal>[":"<port>]
			       Match URLs that are IP address literals.
			       Conceptually this is the similar to (1), but with
			       special cases to handle IP literal
			       canonicalization. For example matching on
			       "[0:0:0::1]" would be the same as matching on
			       "[::1]" since the IPv6 canonicalization is done
			       internally.
			       Examples: "127.0.1", "[0:0::1]", "[::1]",
			       "http://[::1]:99"
			    4) <ip_literal>"/"<prefix_length_in_bits>
			       Match any URL that is to an IP literal that falls
			       in the given range. IP range is specified using
			       CIDR notation.
			       Examples: "192.168.1.1/16", "fefe:13::abc/33".
			    5)  "<local>"
				Match local addresses; this is a literal string.
				"<local>" matches one of: "127.0.0.1", "::1",
				"localhost".

		dict Provider [readonly]

			(VPN only) Provider data.  The Provider is a container
			which reports all of the VPN-specific properties of a
			service.

			string Host [readonly]
				VPN host IP address.
			string Type [readonly]
				VPN provider type (e.g. openvpn).

		string Provider.Host [writeonly]

			(VPN only) Host name of the VPN server.  The current
			value of this property is readable in the "Provider"
			property of this service.

			For builtin VPN types (OpenVPN, L2TP/IPsec) this
			contains an actual hostname.

			If Provider.Type is "thirdpartyvpn" this property
			contains the Chrome extension ID of the VPN app,
			rather than a hostname.  For example:
			"aapocclcgogkmnckokdopfmhonfmgoek"

			If Provider.Type is "arcvpn" this property contains
			the Android package name of the VPN app.  For example:
			"com.android.settings"

		string Provider.Name [writeonly]

			(VPN only) The name assigned to this VPN service.  The
			current value of this property is readable in the
			"Provider" property of this service.

		string Provider.Type [writeonly]

			(VPN only) The type of VPN service.  This value is
			only settable when creating this service (via the
			Manager GetService or ConfigureService methods).  The
			current value of this property is readable in the
			"Provider" property of this service.

		boolean SaveCredentials [readwrite]

			This property indicates if security credentials
			should be reused and/or written to stable storage.
			Setting this property to FALSE ensures nothing is
			recorded and the client must supply credentials
			for each Connect request.

			The following credentials are not recorded when
			this property is set to FALSE:

			Passphrase
			EAP.Identity
			EAP.AnonymousIdentity
			EAP.CertID
			EAP.KeyID
			EAP.PIN
			EAP.Password

			Note that no PropertyChanged signals are sent for
			this property.

		string Security [readonly]

			If the service type is "wifi", then this property is
			present and contains the security method or key
			management setting.

			Possible values are: "none" (no privacy),
			"wep" (fixed key WEP), "wpa" (WPA-PSK), "rsn"
			(IEEE 802.11i-PSK), "wpa3" (WPA3-SAE), "psk" ("wpa",
			"rsn", "or "wpa3"), and "802_1x" (IEEE 802.11i with
			802.1x authentication).

			Note that "psk" is used as a catch-all for non-WEP
			passphrase-based key management protocols (WPA, WPA-2,
			and WPA-3) before we know which one is in use. See also
			SecurityClass. Also note that WPA3-SAE is technically
			also an RSN protocol, so we use the Wi-Fi Alliance
			designation (WPA3) for clarity.

			This property is only present for WiFi services.

		string SecurityClass [readonly]

			If the service type is "wifi", then this property is
			present and contains the security class of the service.
			The security class groups together WPA, WPA-2, and
			WPA-3 networks, to allow for seamless roaming between
			them.

			Possible values are: "none" (no privacy),
			"wep" (fixed key WEP), "psk" (WPA-PSK, IEEE
			802.11i-PSK, WPA3-SAE), and "802_1x" (IEEE 802.11i with
			802.1x authentication).

			This property is only present for WiFi services.

		string State [readonly]

			The state of the service; one of:

			"idle"		The service is not enabled or otherwise
					operational.

			"association"	Intermediate states associated with
					connection-based devices such as WiFi
					and Cellular.  These are exposed for
					UI applications to provide more
					fine-grained status.

			"configuration"	Layer 2 is setup but Layer 3 setup
					has yet to completed.

			"ready"		Layer 3 setup is complete; ready to
					transit and receive data.

			"no-connectivity" Layer 3 setup is complete but HTTP
					and HTTPS connectivity to the Internet
					is unavailable.

			"redirect-found" Layer 3 setup is complete but the HTTP
					probe found a redirect.

			"portal suspected" Layer 3 setup is complete but HTTP
					probe failed with no redirect or HTTPS
					probe failed.

			"online"	Layer 3 setup is complete and an
					Internet connection has been checked
					to support HTTP and HTTPS access to the
					Manager.PortalHttp{s}Url site.

			"failure"	An error occurred while trying to
					reach the "ready" state. Consult the
					Error propery for details.

		dict StaticIPConfig [readwrite]

			A dictionary of static IP configuration parameters
			used to selectively override individual parameters
			received over DHCP or whatever default IP acquisition
			technique is used by the service.

			Additionally, in services that use DHCP, if the
			"Address" and "Prefixlen" fields are both set in the
			dictionary, the service will be configured as soon as
			a link is established, in order to allow full static
			IP configuration.  A DHCP client will be launched in
			parallel, which, if successful, will provide values for
			any parameters that were not set statically.

			The IPConfig associated with the service (object
			path supplied in the "IPConfig" property above)
			will automatically refresh when this property is set
			and display the result of the merged network
			parameters.

			ExcludedRoutes and IncludedRoutes should be in
			CIDR notation, e.g. "192.168.1.0/24"

			Here are the expected keys within the dict:
				string Address
				string Gateway
				int32 Mtu
				array{string} NameServers
				array{string} SearchDomains
				string PeerAddress
				int32 Prefixlen
				array{string} ExcludedRoutes
				array{string} IncludedRoutes

		dict SavedIPConfig [readonly]

			This property present a dictionary of the IP config
			that was received from the DHCP server prior to
			applying any static IP parameters during the most
			recent connection attempt. All parameters are saved
			regardless of whether they were overridden.

			Here are the expected keys within the dict:
				string Address
				string Gateway
				int32 Mtu
				array{string} NameServers
				array{string} SearchDomains
				string PeerAddress
				int32 Prefixlen
				array{string} ExcludedRoutes
				array{string} IncludedRoutes

		uint8 Strength [readonly]

			Indicates the signal strength of the service. This
			is a normalized value between 0 and 100.

			This property will not be present for Ethernet
			devices.

		string Tethering [readonly]

			Returns a string that indicates an estimate of
			whether the service is likely to be providing
			internet connectivity over a mobile network backhaul.
			The possible values of this string are:

				NotDetected: Tethering is not detected.
				Suspected: Something in the network scan
					provides circumstantial evidence
					that this service is tethered.
				Confirmed: Some definitive evidence has
					been discovered that indicates
					either this service is tethered
					or the server is overtly pretending
					to be tethered.

			This property is only visible in service types
			which can support tethering.  Currently only
			Ethernet and WiFi services support this property
			directly.  VPN services make this property visible
			if the service they're using for connectivity does
			(i.e., if VPN connectivity is gained via Ethernet
			or WiFi).

		string Type [readonly]

			The service type; one of:
			  "ethernet"    (802.3 wired Ethernet),
			  "wifi"        (IEEE 802.11),
			  "cellular"    (3G Cellular),
			  "vpn"         (Virtual Private Network), or
			  "pppoe"       (Point-to-Point Protocol over Ethernet).

			This information should only be used to determine
			advanced properties or showing the correct icon
			to the user.

		string UIData [readwrite]

			This is additional data available about this service
			for use by the user interface.  This value is opaque
			and not used by shill.

		bool Visible [readonly]

			WiFi services list all services for which
			configuration exists in the manager's
			ServiceCompleteList.  Those service types have this
			property set to false if such a configured service
			is not actually in range.  For all other services
			(including all other service types) this property
			is always true.

		string WiFi.BSSID [readonly]

			(WiFi only) The BSSID of the associated AP.
			One can monitor this property for PropertyChanged
			signals to identify when roaming changes the
			current AP.

			The BSSID is formatted as colon-separated octets.
			E.g. "00:01:02:03:04:05".

		boolean WiFi.HiddenSSID [readwrite]

			(WiFi only) If true, the associated WiFi network
			does not broadcast its SSID in beacon frames.
			This property instructs shill to actively scan
			for this SSID.  This value is cleared when this
			service is removed from all active profiles.

		uint16 WiFi.Frequency [readonly]

			(WiFi only) The operating frequency in MHz of
			the Service. If the Service is connected, this
			is the frequency on which it is connected.
			Otherwise, this is the frequency of the best
			available BSS (roughly, AP) for this Service.

		array{uint16} WiFi.FrequencyList [readonly]

			(WiFi only) The operating frequencies in MHz of
			the Service. This lists all of the frequencies
			where this Service has recently been seen.

			This list is not necessarily complete, as:
			a) not all scans check every channel,
			b) an AP may not have responded in time, and
			c) some scan results may have expired from the
			   cache.

		string WiFi.PhyMode [readonly]

			(WiFi only) If the service state is
			"configuration" or "ready", then this property
			will be present and contains the negotiated
			operating mode for the channel.  Possible values
			include "802.11a", "802.11b", "802.11g",
			"802.11n".  This value is for informational
			purposes only.

		string WiFi.HexSSID [readonly]

			(WiFi only) This property holds a hex-encoded copy
			of the SSID.  Since the Name property is enforced
			by the D-Bus protocol to be a valid UTF-8 string
			but SSIDs can be an abitrary sequence of bytes, this
			property will always contain the true value of the
			SSID, while the Name property may differ from the
			true representation.

			See also the Name property. (Note that there is
			no SSID property for reasons explained above.)

		boolean WiFi.RekeyInProgress [readonly]

			True when the connected network is attempting to
			rekey. PSK networks can periodically change pairwise
			or group keys for increased protection against attacks.
			This flag guards against state changes in shill that
			would otherwise change the service sort order and
			potentially disrupt connectivity.

		string WiFi.RoamState [readonly]

			The state of the service during a within-ESS roam. The
			normal State property remains Online during a roam, to
			prevent any reordering of Services but it's still
			useful to know the actual state the Service is in.
			RoamState can be one of:

			"idle"		The service is not roaming.

			"association"	The service is currently reassociating
					with another AP in the same network.

			"configuration"	The reassociation is complete and the
					IP configuration is being renewed.

			"ready"		IP has been renewed, and the service
					is awaiting portal detection results.

		string WiFi.SSID [readonly]

			(WiFi only) The service's SSID. Must have a non-zero
			length less than or equal to 32.

		dict WiFi.VendorInformation [readonly]

			(WiFi only) Information about the vendor of the
			AP, gleaned from WPS and vendor-specific information
			elements in the beacon and probe respondss.

			string Manufacturer [readonly]
				Device manufacturer name as supplied by WPS IE.
			string ModelName [readonly]
				Device model name as supplied by WPS IE.
			string ModelNumber [readonly]
				Device model number as supplied by WPS IE.
			string DeviceName [readonly]
				Device name as supplied by WPS IE.
			string OUIList [readonly]
				Space separated list of OUI identifiers for
				vendor-specific IEs that were neither the
				Microsoft nor Epigram identifiers (the former
				two are used for platform-neutral information).