5b9c547c07
Major changes are: SAE, Suite B, RFC 7268, EAP-PKE, ACS, and tons of bug fixes. Relnotes: yes
845 lines
32 KiB
Plaintext
845 lines
32 KiB
Plaintext
wpa_supplicant and Wi-Fi P2P
|
|
============================
|
|
|
|
This document describes how the Wi-Fi P2P implementation in
|
|
wpa_supplicant can be configured and how an external component on the
|
|
client (e.g., management GUI) is used to enable WPS enrollment and
|
|
registrar registration.
|
|
|
|
|
|
Introduction to Wi-Fi P2P
|
|
-------------------------
|
|
|
|
TODO
|
|
|
|
More information about Wi-Fi P2P is available from Wi-Fi Alliance:
|
|
http://www.wi-fi.org/Wi-Fi_Direct.php
|
|
|
|
|
|
wpa_supplicant implementation
|
|
-----------------------------
|
|
|
|
TODO
|
|
|
|
|
|
wpa_supplicant configuration
|
|
----------------------------
|
|
|
|
Wi-Fi P2P is an optional component that needs to be enabled in the
|
|
wpa_supplicant build configuration (.config). Here is an example
|
|
configuration that includes Wi-Fi P2P support and Linux nl80211
|
|
-based driver interface:
|
|
|
|
CONFIG_DRIVER_NL80211=y
|
|
CONFIG_CTRL_IFACE=y
|
|
CONFIG_P2P=y
|
|
CONFIG_AP=y
|
|
CONFIG_WPS=y
|
|
|
|
|
|
In run-time configuration file (wpa_supplicant.conf), some parameters
|
|
for P2P may be set. In order to make the devices easier to recognize,
|
|
device_name and device_type should be specified. For example,
|
|
something like this should be included:
|
|
|
|
ctrl_interface=/var/run/wpa_supplicant
|
|
device_name=My P2P Device
|
|
device_type=1-0050F204-1
|
|
|
|
|
|
wpa_cli
|
|
-------
|
|
|
|
Actual Wi-Fi P2P operations are requested during runtime. These can be
|
|
done for example using wpa_cli (which is described below) or a GUI
|
|
like wpa_gui-qt4.
|
|
|
|
|
|
wpa_cli starts in interactive mode if no command string is included on
|
|
the command line. By default, it will select the first network interface
|
|
that it can find (and that wpa_supplicant controls). If more than one
|
|
interface is in use, it may be necessary to select one of the explicitly
|
|
by adding -i argument on the command line (e.g., 'wpa_cli -i wlan1').
|
|
|
|
Most of the P2P operations are done on the main interface (e.g., the
|
|
interface that is automatically added when the driver is loaded, e.g.,
|
|
wlan0). When using a separate virtual interface for group operations
|
|
(e.g., wlan1), the control interface for that group interface may need
|
|
to be used for some operations (mainly WPS activation in GO). This may
|
|
change in the future so that all the needed operations could be done
|
|
over the main control interface.
|
|
|
|
Device Discovery
|
|
|
|
p2p_find [timeout in seconds] [type=<social|progressive>] \
|
|
[dev_id=<addr>] [dev_type=<device type>] \
|
|
[delay=<search delay in ms>] [seek=<service name>] [freq=<MHz>]
|
|
|
|
The default behavior is to run a single full scan in the beginning and
|
|
then scan only social channels. type=social will scan only social
|
|
channels, i.e., it skips the initial full scan. type=progressive is
|
|
like the default behavior, but it will scan through all the channels
|
|
progressively one channel at the time in the Search state rounds. This
|
|
will help in finding new groups or groups missed during the initial
|
|
full scan. When the type parameter is not included (i.e., full scan), the
|
|
optional freq parameter can be used to override the first scan to use only
|
|
the specified channel after which only social channels are scanned.
|
|
|
|
The optional dev_id option can be used to specify a single P2P peer to
|
|
search for. The optional delay parameter can be used to request an extra
|
|
delay to be used between search iterations (e.g., to free up radio
|
|
resources for concurrent operations).
|
|
|
|
The optional dev_type option can be used to specify a single device type
|
|
(primary or secondary) to search for, e.g.,
|
|
"p2p_find dev_type=1-0050F204-1".
|
|
|
|
|
|
With one or more seek arguments, the command sends Probe Request frames
|
|
for a P2PS service. For example,
|
|
p2p_find 5 dev_id=11:22:33:44:55:66 seek=alt.example.chat seek=alt.example.video
|
|
|
|
Parameters description:
|
|
Timeout - Optional ASCII base-10-encoded u16. If missing, request will not
|
|
time out and must be canceled manually
|
|
dev_id - Optional to request responses from a single known remote device
|
|
Service Name - Mandatory UTF-8 string for ASP seeks
|
|
Service name must match the remote service being advertised exactly
|
|
(no prefix matching).
|
|
Service name may be empty, in which case all ASP services will be
|
|
returned, and may be filtered with p2p_serv_disc_req settings, and
|
|
p2p_serv_asp_resp results.
|
|
Multiple service names may be requested, but if it exceeds internal
|
|
limit, it will automatically revert to requesting all ASP services.
|
|
|
|
p2p_listen [timeout in seconds]
|
|
|
|
Start Listen-only state (become discoverable without searching for
|
|
other devices). Optional parameter can be used to specify the duration
|
|
for the Listen operation in seconds. This command may not be of that
|
|
much use during normal operations and is mainly designed for
|
|
testing. It can also be used to keep the device discoverable without
|
|
having to maintain a group.
|
|
|
|
p2p_stop_find
|
|
|
|
Stop ongoing P2P device discovery or other operation (connect, listen
|
|
mode).
|
|
|
|
p2p_flush
|
|
|
|
Flush P2P peer table and state.
|
|
|
|
Group Formation
|
|
|
|
p2p_prov_disc <peer device address> <display|keypad|pbc> [join|auto]
|
|
|
|
Send P2P provision discovery request to the specified peer. The
|
|
parameters for this command are the P2P device address of the peer and
|
|
the desired configuration method. For example, "p2p_prov_disc
|
|
02:01:02:03:04:05 display" would request the peer to display a PIN for
|
|
us and "p2p_prov_disc 02:01:02:03:04:05 keypad" would request the peer
|
|
to enter a PIN that we display.
|
|
|
|
The optional "join" parameter can be used to indicate that this command
|
|
is requesting an already running GO to prepare for a new client. This is
|
|
mainly used with "display" to request it to display a PIN. The "auto"
|
|
parameter can be used to request wpa_supplicant to automatically figure
|
|
out whether the peer device is operating as a GO and if so, use
|
|
join-a-group style PD instead of GO Negotiation style PD.
|
|
|
|
p2p_connect <peer device address> <pbc|pin|PIN#|p2ps> [display|keypad|p2ps]
|
|
[persistent|persistent=<network id>] [join|auth]
|
|
[go_intent=<0..15>] [freq=<in MHz>] [ht40] [vht] [provdisc] [auto]
|
|
|
|
Start P2P group formation with a discovered P2P peer. This includes
|
|
optional group owner negotiation, group interface setup, provisioning,
|
|
and establishing data connection.
|
|
|
|
The <pbc|pin|PIN#> parameter specifies the WPS provisioning
|
|
method. "pbc" string starts pushbutton method, "pin" string start PIN
|
|
method using an automatically generated PIN (which will be returned as
|
|
the command return code), PIN# means that a pre-selected PIN can be
|
|
used (e.g., 12345670). [display|keypad] is used with PIN method
|
|
to specify which PIN is used (display=dynamically generated random PIN
|
|
from local display, keypad=PIN entered from peer display). "persistent"
|
|
parameter can be used to request a persistent group to be formed. The
|
|
"persistent=<network id>" alternative can be used to pre-populate
|
|
SSID/passphrase configuration based on a previously used persistent
|
|
group where this device was the GO. The previously used parameters will
|
|
then be used if the local end becomes the GO in GO Negotiation (which
|
|
can be forced with go_intent=15).
|
|
|
|
"join" indicates that this is a command to join an existing group as a
|
|
client. It skips the GO Negotiation part. This will send a Provision
|
|
Discovery Request message to the target GO before associating for WPS
|
|
provisioning.
|
|
|
|
"auth" indicates that the WPS parameters are authorized for the peer
|
|
device without actually starting GO Negotiation (i.e., the peer is
|
|
expected to initiate GO Negotiation). This is mainly for testing
|
|
purposes.
|
|
|
|
"go_intent" can be used to override the default GO Intent for this GO
|
|
Negotiation.
|
|
|
|
"freq" can be used to set a forced operating channel (e.g., freq=2412
|
|
to select 2.4 GHz channel 1).
|
|
|
|
"provdisc" can be used to request a Provision Discovery exchange to be
|
|
used prior to starting GO Negotiation as a workaround with some deployed
|
|
P2P implementations that require this to allow the user to accept the
|
|
connection.
|
|
|
|
"auto" can be used to request wpa_supplicant to automatically figure
|
|
out whether the peer device is operating as a GO and if so, use
|
|
join-a-group operation rather than GO Negotiation.
|
|
|
|
P2PS attribute changes to p2p_connect command:
|
|
|
|
P2PS supports two WPS provisioning methods namely PIN method and P2PS default.
|
|
The remaining paramters hold same role as in legacy P2P. In case of P2PS default
|
|
config method "p2ps" keyword is added in p2p_connect command.
|
|
|
|
For example:
|
|
p2p_connect 02:0a:f5:85:11:00 12345670 p2ps persistent join
|
|
(WPS Method = P2PS default)
|
|
|
|
p2p_connect 02:0a:f5:85:11:00 45629034 keypad persistent
|
|
(WPS Method = PIN)
|
|
|
|
p2p_asp_provision <peer MAC address> <adv_id=peer adv id>
|
|
<adv_mac=peer MAC address> [role=2|4|1] <session=session id>
|
|
<session_mac=initiator mac address>
|
|
[info='service info'] <method=Default|keypad|Display>
|
|
|
|
This command starts provision discovery with the P2PS enabled peer device.
|
|
|
|
For example,
|
|
p2p_asp_provision 00:11:22:33:44:55 adv_id=4d6fc7 adv_mac=00:55:44:33:22:11 role=1 session=12ab34 session_mac=00:11:22:33:44:55 info='name=john' method=1000
|
|
|
|
Parameter description:
|
|
MAC address - Mandatory
|
|
adv_id - Mandatory remote Advertising ID of service connection is being
|
|
established for
|
|
adv_mac - Mandatory MAC address that owns/registered the service
|
|
role - Optional
|
|
2 (group client only) or 4 (group owner only)
|
|
if not present (or 1) role is negotiated by the two peers.
|
|
session - Mandatory Session ID of the first session to be established
|
|
session_mac - Mandatory MAC address that owns/initiated the session
|
|
method - Optional method to request for provisioning (1000 - P2PS Default,
|
|
100 - Keypad(PIN), 8 - Display(PIN))
|
|
info - Optional UTF-8 string. Hint for service to indicate possible usage
|
|
parameters - Escape single quote & backslash:
|
|
with a backslash 0x27 == ' == \', and 0x5c == \ == \\
|
|
|
|
p2p_asp_provision_resp <peer mac address> <adv_id= local adv id>
|
|
<adv_mac=local MAC address> <role=1|2|4> <status=0>
|
|
<session=session id> <session_mac=peer MAC address>
|
|
|
|
This command sends a provision discovery response from responder side.
|
|
|
|
For example,
|
|
p2p_asp_provision_resp 00:55:44:33:22:11 adv_id=4d6fc7 adv_mac=00:55:44:33:22:11 role=1 status=0 session=12ab34 session_mac=00:11:22:33:44:55
|
|
|
|
Parameters definition:
|
|
MAC address - Mandatory
|
|
adv_id - Mandatory local Advertising ID of service connection is being
|
|
established for
|
|
adv_mac - Mandatory MAC address that owns/registered the service
|
|
role - Optional 2 (group client only) or 4 (group owner only)
|
|
if not present (or 1) role is negotiated by the two peers.
|
|
status - Mandatory Acceptance/Rejection code of Provisioning
|
|
session - Mandatory Session ID of the first session to be established
|
|
session_mac - Mandatory MAC address that owns/initiated the session
|
|
|
|
p2p_group_add [persistent|persistent=<network id>] [freq=<freq in MHz>]
|
|
[ht40] [vht]
|
|
|
|
Set up a P2P group owner manually (i.e., without group owner
|
|
negotiation with a specific peer). This is also known as autonomous
|
|
GO. Optional persistent=<network id> can be used to specify restart of
|
|
a persistent group. Optional freq=<freq in MHz> can be used to force
|
|
the GO to be started on a specific frequency. Special freq=2 or freq=5
|
|
options can be used to request the best 2.4 GHz or 5 GHz band channel
|
|
to be selected automatically.
|
|
|
|
p2p_reject <peer device address>
|
|
|
|
Reject connection attempt from a peer (specified with a device
|
|
address). This is a mechanism to reject a pending GO Negotiation with
|
|
a peer and request to automatically block any further connection or
|
|
discovery of the peer.
|
|
|
|
p2p_group_remove <group interface>
|
|
|
|
Terminate a P2P group. If a new virtual network interface was used for
|
|
the group, it will also be removed. The network interface name of the
|
|
group interface is used as a parameter for this command.
|
|
|
|
p2p_cancel
|
|
|
|
Cancel an ongoing P2P group formation and joining-a-group related
|
|
operation. This operations unauthorizes the specific peer device (if any
|
|
had been authorized to start group formation), stops P2P find (if in
|
|
progress), stops pending operations for join-a-group, and removes the
|
|
P2P group interface (if one was used) that is in the WPS provisioning
|
|
step. If the WPS provisioning step has been completed, the group is not
|
|
terminated.
|
|
|
|
p2p_remove_client <peer's P2P Device Address|iface=<interface address>>
|
|
|
|
This command can be used to remove the specified client from all groups
|
|
(operating and persistent) from the local GO. Note that the peer device
|
|
can rejoin the group if it is in possession of a valid key. See p2p_set
|
|
per_sta_psk command below for more details on how the peer can be
|
|
removed securely.
|
|
|
|
Service Discovery
|
|
|
|
p2p_service_add asp <auto accept> <adv id> <status 0/1> <Config Methods>
|
|
<Service name> [Service Information] [Response Info]
|
|
|
|
This command can be used to search for a P2PS service which includes
|
|
Play, Send, Display, and Print service. The parameters for this command
|
|
are "asp" to identify the command as P2PS one, auto accept value,
|
|
advertisement id which uniquely identifies the service requests, state
|
|
of the service whether the service is available or not, config methods
|
|
which can be either P2PS method or PIN method, service name followed by
|
|
two optional parameters service information, and response info.
|
|
|
|
For example,
|
|
p2p_service_add asp 1 4d6fc7 0 1108 alt.example.chat svc_info='name=john' rsp_info='enter PIN 1234'
|
|
|
|
Parameters definition:
|
|
asp - Mandatory for ASP service registration
|
|
auto accept - Mandatory ASCII hex-encoded boolean (0 == no auto-accept,
|
|
1 == auto-accept ANY role, 2 == auto-accept CLIENT role,
|
|
4 == auto-accept GO role)
|
|
Advertisement ID - Mandatory non-zero ASCII hex-encoded u32
|
|
(Must be unique/not yet exist in svc db)
|
|
State - Mandatory ASCII hex-encoded u8 (0 -- Svc not available,
|
|
1 -- Svc available, 2-0xff Application defined)
|
|
Config Methods - Mandatory ASCII hex-encoded u16 (bitmask of WSC config
|
|
methods)
|
|
Service Name - Mandatory UTF-8 string
|
|
Service Information - Optional UTF-8 string
|
|
Escape single quote & backslash with a backslash:
|
|
0x27 == ' == \', and 0x5c == \ == \\
|
|
Session response information - Optional (used only if auto accept is TRUE)
|
|
UTF-8 string
|
|
Escape single quote & backslash with a backslash:
|
|
0x27 == ' == \', and 0x5c == \ == \\
|
|
|
|
p2p_service_rep asp <auto accept> <adv id> <status 0/1> <Config Methods>
|
|
<Service name> [Service Information] [Response Info]
|
|
|
|
This command can be used to replace the existing service request
|
|
attributes from the initiator side. The replacement is only allowed if
|
|
the advertisement id issued in the command matches with any one entry in
|
|
the list of existing SD queries. If advertisement id doesn't match the
|
|
command returns a failure.
|
|
|
|
For example,
|
|
p2p_service_rep asp 1 4d6fc7 1 1108 alt.example.chat svc_info='name=john' rsp_info='enter PIN 1234'
|
|
|
|
Parameters definition:
|
|
asp - Mandatory for ASP service registration
|
|
auto accept - Mandatory ASCII hex-encoded boolean (1 == true, 0 == false)
|
|
Advertisement ID - Mandatory non-zero ASCII hex-encoded u32
|
|
(Must already exist in svc db)
|
|
State - Mandatory ASCII hex-encoded u8 (can be used to indicate svc
|
|
available or not available for instance)
|
|
Config Methods - Mandatory ASCII hex-encoded u16 (bitmask of WSC config
|
|
methods)
|
|
Service Name - Mandatory UTF-8 string (Must match existing string in svc db)
|
|
Service Information - Optional UTF-8 string
|
|
Escape single quote & backslash with a backslash:
|
|
0x27 == ' == \', and 0x5c == \ == \\
|
|
Session response information - Optional (used only if auto accept is TRUE)
|
|
UTF-8 string
|
|
Escape single quote & backslash with a backslash:
|
|
0x27 == ' == \', and 0x5c == \ == \\
|
|
|
|
p2p_serv_disc_req
|
|
|
|
Schedule a P2P service discovery request. The parameters for this
|
|
command are the device address of the peer device (or 00:00:00:00:00:00
|
|
for wildcard query that is sent to every discovered P2P peer that
|
|
supports service discovery) and P2P Service Query TLV(s) as hexdump. For
|
|
example,
|
|
|
|
p2p_serv_disc_req 00:00:00:00:00:00 02000001
|
|
|
|
schedules a request for listing all available services of all service
|
|
discovery protocols and requests this to be sent to all discovered
|
|
peers (note: this can result in long response frames). The pending
|
|
requests are sent during device discovery (see p2p_find).
|
|
|
|
There can be multiple pending peer device specific queries (each will be
|
|
sent in sequence whenever the peer is found).
|
|
|
|
This command returns an identifier for the pending query (e.g.,
|
|
"1f77628") that can be used to cancel the request. Directed requests
|
|
will be automatically removed when the specified peer has replied to
|
|
it.
|
|
|
|
Service Query TLV has following format:
|
|
Length (2 octets, little endian) - length of following data
|
|
Service Protocol Type (1 octet) - see the table below
|
|
Service Transaction ID (1 octet) - nonzero identifier for the TLV
|
|
Query Data (Length - 2 octets of data) - service protocol specific data
|
|
|
|
Service Protocol Types:
|
|
0 = All service protocols
|
|
1 = Bonjour
|
|
2 = UPnP
|
|
3 = WS-Discovery
|
|
4 = Wi-Fi Display
|
|
|
|
For UPnP, an alternative command format can be used to specify a
|
|
single query TLV (i.e., a service discovery for a specific UPnP
|
|
service):
|
|
|
|
p2p_serv_disc_req 00:00:00:00:00:00 upnp <version hex> <ST: from M-SEARCH>
|
|
|
|
For example:
|
|
|
|
p2p_serv_disc_req 00:00:00:00:00:00 upnp 10 urn:schemas-upnp-org:device:InternetGatewayDevice:1
|
|
|
|
Additional examples for queries:
|
|
|
|
# list of all Bonjour services
|
|
p2p_serv_disc_req 00:00:00:00:00:00 02000101
|
|
|
|
# list of all UPnP services
|
|
p2p_serv_disc_req 00:00:00:00:00:00 02000201
|
|
|
|
# list of all WS-Discovery services
|
|
p2p_serv_disc_req 00:00:00:00:00:00 02000301
|
|
|
|
# list of all Bonjour and UPnP services
|
|
p2p_serv_disc_req 00:00:00:00:00:00 0200010102000202
|
|
|
|
# Apple File Sharing over TCP
|
|
p2p_serv_disc_req 00:00:00:00:00:00 130001010b5f6166706f766572746370c00c000c01
|
|
|
|
# Bonjour SSTH (supported service type hash)
|
|
p2p_serv_disc_req 00:00:00:00:00:00 05000101000000
|
|
|
|
# UPnP examples
|
|
p2p_serv_disc_req 00:00:00:00:00:00 upnp 10 ssdp:all
|
|
p2p_serv_disc_req 00:00:00:00:00:00 upnp 10 upnp:rootdevice
|
|
p2p_serv_disc_req 00:00:00:00:00:00 upnp 10 urn:schemas-upnp-org:service:ContentDirectory:2
|
|
p2p_serv_disc_req 00:00:00:00:00:00 upnp 10 uuid:6859dede-8574-59ab-9332-123456789012
|
|
p2p_serv_disc_req 00:00:00:00:00:00 upnp 10 urn:schemas-upnp-org:device:InternetGatewayDevice:1
|
|
|
|
# Wi-Fi Display examples
|
|
# format: wifi-display <list of roles> <list of subelements>
|
|
p2p_serv_disc_req 00:00:00:00:00:00 wifi-display [source] 2,3,4,5
|
|
p2p_serv_disc_req 02:01:02:03:04:05 wifi-display [pri-sink] 3
|
|
p2p_serv_disc_req 00:00:00:00:00:00 wifi-display [sec-source] 2
|
|
p2p_serv_disc_req 00:00:00:00:00:00 wifi-display [source+sink] 2,3,4,5
|
|
p2p_serv_disc_req 00:00:00:00:00:00 wifi-display [source][pri-sink] 2,3,4,5
|
|
|
|
p2p_serv_disc_req <Unicast|Broadcast mac address> asp <Transaction ID>
|
|
<Service Name> [Service Information]
|
|
|
|
The command can be used for service discovery for P2PS enabled devices.
|
|
|
|
For example: p2p_serv_disc_req 00:00:00:00:00:00 asp a1 alt.example 'john'
|
|
|
|
Parameters definition:
|
|
MAC address - Mandatory Existing
|
|
asp - Mandatory for ASP queries
|
|
Transaction ID - Mandatory non-zero ASCII hex-encoded u8 for GAS
|
|
Service Name Prefix - Mandatory UTF-8 string.
|
|
Will match from beginning of remote Service Name
|
|
Service Information Substring - Optional UTF-8 string
|
|
If Service Information Substring is not included, all services matching
|
|
Service Name Prefix will be returned.
|
|
If Service Information Substring is included, both the Substring and the
|
|
Service Name Prefix must match for service to be returned.
|
|
If remote service has no Service Information, all Substring searches
|
|
will fail.
|
|
|
|
p2p_serv_disc_cancel_req <query identifier>
|
|
|
|
Cancel a pending P2P service discovery request. This command takes a
|
|
single parameter: identifier for the pending query (the value returned
|
|
by p2p_serv_disc_req, e.g., "p2p_serv_disc_cancel_req 1f77628".
|
|
|
|
p2p_serv_disc_resp
|
|
|
|
Reply to a service discovery query. This command takes following
|
|
parameters: frequency in MHz, destination address, dialog token,
|
|
response TLV(s). The first three parameters are copied from the
|
|
request event. For example, "p2p_serv_disc_resp 2437 02:40:61:c2:f3:b7
|
|
1 0300000101". This command is used only if external program is used
|
|
to process the request (see p2p_serv_disc_external).
|
|
|
|
p2p_service_update
|
|
|
|
Indicate that local services have changed. This is used to increment
|
|
the P2P service indicator value so that peers know when previously
|
|
cached information may have changed. This is only needed when external
|
|
service discovery processing is enabled since the commands to
|
|
pre-configure services for internal processing will increment the
|
|
indicator automatically.
|
|
|
|
p2p_serv_disc_external <0|1>
|
|
|
|
Configure external processing of P2P service requests: 0 (default) =
|
|
no external processing of requests (i.e., internal code will process
|
|
each request based on pre-configured services), 1 = external
|
|
processing of requests (external program is responsible for replying
|
|
to service discovery requests with p2p_serv_disc_resp). Please note
|
|
that there is quite strict limit on how quickly the response needs to
|
|
be transmitted, so use of the internal processing is strongly
|
|
recommended.
|
|
|
|
p2p_service_add bonjour <query hexdump> <RDATA hexdump>
|
|
|
|
Add a local Bonjour service for internal SD query processing.
|
|
|
|
Examples:
|
|
|
|
# AFP Over TCP (PTR)
|
|
p2p_service_add bonjour 0b5f6166706f766572746370c00c000c01 074578616d706c65c027
|
|
# AFP Over TCP (TXT) (RDATA=null)
|
|
p2p_service_add bonjour 076578616d706c650b5f6166706f766572746370c00c001001 00
|
|
|
|
# IP Printing over TCP (PTR) (RDATA=MyPrinter._ipp._tcp.local.)
|
|
p2p_service_add bonjour 045f697070c00c000c01 094d795072696e746572c027
|
|
# IP Printing over TCP (TXT) (RDATA=txtvers=1,pdl=application/postscript)
|
|
p2p_service_add bonjour 096d797072696e746572045f697070c00c001001 09747874766572733d311a70646c3d6170706c69636174696f6e2f706f7374736372797074
|
|
|
|
# Supported Service Type Hash (SSTH)
|
|
p2p_service_add bonjour 000000 <32-byte bitfield as hexdump>
|
|
(note: see P2P spec Annex E.4 for information on how to construct the bitfield)
|
|
|
|
p2p_service_del bonjour <query hexdump>
|
|
|
|
Remove a local Bonjour service from internal SD query processing.
|
|
|
|
p2p_service_add upnp <version hex> <service>
|
|
|
|
Add a local UPnP service for internal SD query processing.
|
|
|
|
Examples:
|
|
|
|
p2p_service_add upnp 10 uuid:6859dede-8574-59ab-9332-123456789012::upnp:rootdevice
|
|
p2p_service_add upnp 10 uuid:5566d33e-9774-09ab-4822-333456785632::upnp:rootdevice
|
|
p2p_service_add upnp 10 uuid:1122de4e-8574-59ab-9322-333456789044::urn:schemas-upnp-org:service:ContentDirectory:2
|
|
p2p_service_add upnp 10 uuid:5566d33e-9774-09ab-4822-333456785632::urn:schemas-upnp-org:service:ContentDirectory:2
|
|
p2p_service_add upnp 10 uuid:6859dede-8574-59ab-9332-123456789012::urn:schemas-upnp-org:device:InternetGatewayDevice:1
|
|
|
|
p2p_service_del upnp <version hex> <service>
|
|
|
|
Remove a local UPnP service from internal SD query processing.
|
|
|
|
p2p_service_del asp <adv id>
|
|
|
|
Removes the local asp service from internal SD query list.
|
|
For example: p2p_service_del asp 4d6fc7
|
|
|
|
p2p_service_flush
|
|
|
|
Remove all local services from internal SD query processing.
|
|
|
|
Invitation
|
|
|
|
p2p_invite [persistent=<network id>|group=<group ifname>] [peer=address]
|
|
[go_dev_addr=address] [freq=<freq in MHz>] [ht40] [vht]
|
|
[pref=<MHz>]
|
|
|
|
Invite a peer to join a group (e.g., group=wlan1) or to reinvoke a
|
|
persistent group (e.g., persistent=4). If the peer device is the GO of
|
|
the persistent group, the peer parameter is not needed. Otherwise it is
|
|
used to specify which device to invite. go_dev_addr parameter can be
|
|
used to override the GO device address for Invitation Request should
|
|
it be not known for some reason (this should not be needed in most
|
|
cases). When reinvoking a persistent group, the GO device can specify
|
|
the frequency for the group with the freq parameter. When reinvoking a
|
|
persistent group, the P2P client device can use freq parameter to force
|
|
a specific operating channel (or invitation failure if GO rejects that)
|
|
or pref parameter to request a specific channel (while allowing GO to
|
|
select to use another channel, if needed).
|
|
|
|
Group Operations
|
|
|
|
(These are used on the group interface.)
|
|
|
|
wps_pin <any|address> <PIN>
|
|
|
|
Start WPS PIN method. This allows a single WPS Enrollee to connect to
|
|
the AP/GO. This is used on the GO when a P2P client joins an existing
|
|
group. The second parameter is the address of the Enrollee or a string
|
|
"any" to allow any station to use the entered PIN (which will restrict
|
|
the PIN for one-time-use). PIN is the Enrollee PIN read either from a
|
|
label or display on the P2P Client/WPS Enrollee.
|
|
|
|
wps_pbc
|
|
|
|
Start WPS PBC method (i.e., push the button). This allows a single WPS
|
|
Enrollee to connect to the AP/GO. This is used on the GO when a P2P
|
|
client joins an existing group.
|
|
|
|
p2p_get_passphrase
|
|
|
|
Get the passphrase for a group (only available when acting as a GO).
|
|
|
|
p2p_presence_req [<duration> <interval>] [<duration> <interval>]
|
|
|
|
Send a P2P Presence Request to the GO (this is only available when
|
|
acting as a P2P client). If no duration/interval pairs are given, the
|
|
request indicates that this client has no special needs for GO
|
|
presence. The first parameter pair gives the preferred duration and
|
|
interval values in microseconds. If the second pair is included, that
|
|
indicates which value would be acceptable. This command returns OK
|
|
immediately and the response from the GO is indicated in a
|
|
P2P-PRESENCE-RESPONSE event message.
|
|
|
|
Parameters
|
|
|
|
p2p_ext_listen [<period> <interval>]
|
|
|
|
Configure Extended Listen Timing. If the parameters are omitted, this
|
|
feature is disabled. If the parameters are included, Listen State will
|
|
be entered every interval msec for at least period msec. Both values
|
|
have acceptable range of 1-65535 (with interval obviously having to be
|
|
larger than or equal to duration). If the P2P module is not idle at
|
|
the time the Extended Listen Timing timeout occurs, the Listen State
|
|
operation will be skipped.
|
|
|
|
The configured values will also be advertised to other P2P Devices. The
|
|
received values are available in the p2p_peer command output:
|
|
|
|
ext_listen_period=100 ext_listen_interval=5000
|
|
|
|
p2p_set <field> <value>
|
|
|
|
Change dynamic P2P parameters
|
|
|
|
p2p_set discoverability <0/1>
|
|
|
|
Disable/enable advertisement of client discoverability. This is
|
|
enabled by default and this parameter is mainly used to allow testing
|
|
of device discoverability.
|
|
|
|
p2p_set managed <0/1>
|
|
|
|
Disable/enable managed P2P Device operations. This is disabled by
|
|
default.
|
|
|
|
p2p_set listen_channel <1/6/11>
|
|
|
|
Set P2P Listen channel. This is mainly meant for testing purposes and
|
|
changing the Listen channel during normal operations can result in
|
|
protocol failures.
|
|
|
|
p2p_set ssid_postfix <postfix>
|
|
|
|
Set postfix string to be added to the automatically generated P2P SSID
|
|
(DIRECT-<two random characters>). For example, postfix of "-testing"
|
|
could result in the SSID becoming DIRECT-ab-testing.
|
|
|
|
p2p_set per_sta_psk <0/1>
|
|
|
|
Disabled(default)/enables use of per-client PSK in the P2P groups. This
|
|
can be used to request GO to assign a unique PSK for each client during
|
|
WPS provisioning. When enabled, this allow clients to be removed from
|
|
the group securily with p2p_remove_client command since that client's
|
|
PSK is removed at the same time to prevent it from connecting back using
|
|
the old PSK. When per-client PSK is not used, the client can still be
|
|
disconnected, but it will be able to re-join the group since the PSK it
|
|
learned previously is still valid. It should be noted that the default
|
|
passphrase on the GO that is normally used to allow legacy stations to
|
|
connect through manual configuration does not change here, so if that is
|
|
shared, devices with knowledge of that passphrase can still connect.
|
|
|
|
set <field> <value>
|
|
|
|
Set global configuration parameters which may also affect P2P
|
|
operations. The format on these parameters is same as is used in
|
|
wpa_supplicant.conf. Only the parameters listen here should be
|
|
changed. Modifying other parameters may result in incorrect behavior
|
|
since not all existing users of the parameters are updated.
|
|
|
|
set uuid <UUID>
|
|
|
|
Set WPS UUID (by default, this is generated based on the MAC address).
|
|
|
|
set device_name <device name>
|
|
|
|
Set WPS Device Name (also included in some P2P messages).
|
|
|
|
set manufacturer <manufacturer>
|
|
|
|
Set WPS Manufacturer.
|
|
|
|
set model_name <model name>
|
|
|
|
Set WPS Model Name.
|
|
|
|
set model_number <model number>
|
|
|
|
Set WPS Model Number.
|
|
|
|
set serial_number <serial number>
|
|
|
|
Set WPS Serial Number.
|
|
|
|
set device_type <device type>
|
|
|
|
Set WPS Device Type.
|
|
|
|
set os_version <OS version>
|
|
|
|
Set WPS OS Version.
|
|
|
|
set config_methods <config methods>
|
|
|
|
Set WPS Configuration Methods.
|
|
|
|
set sec_device_type <device type>
|
|
|
|
Add a new Secondary Device Type.
|
|
|
|
set p2p_go_intent <GO intent>
|
|
|
|
Set the default P2P GO Intent. Note: This value can be overridden in
|
|
p2p_connect command and as such, there should be no need to change the
|
|
default value here during normal operations.
|
|
|
|
set p2p_ssid_postfix <P2P SSID postfix>
|
|
|
|
Set P2P SSID postfix.
|
|
|
|
set persistent_reconnect <0/1>
|
|
|
|
Disable/enabled persistent reconnect for reinvocation of persistent
|
|
groups. If enabled, invitations to reinvoke a persistent group will be
|
|
accepted without separate authorization (e.g., user interaction).
|
|
|
|
set country <two character country code>
|
|
|
|
Set country code (this is included in some P2P messages).
|
|
|
|
set p2p_search_delay <delay>
|
|
|
|
Set p2p_search_delay which adds extra delay in milliseconds between
|
|
concurrent search iterations to make p2p_find friendlier to concurrent
|
|
operations by avoiding it from taking 100% of radio resources. The
|
|
default value is 500 ms.
|
|
|
|
Status
|
|
|
|
p2p_peers [discovered]
|
|
|
|
List P2P Device Addresses of all the P2P peers we know. The optional
|
|
"discovered" parameter filters out the peers that we have not fully
|
|
discovered, i.e., which we have only seen in a received Probe Request
|
|
frame.
|
|
|
|
p2p_peer <P2P Device Address>
|
|
|
|
Fetch information about a known P2P peer.
|
|
|
|
Group Status
|
|
|
|
(These are used on the group interface.)
|
|
|
|
status
|
|
|
|
Show status information (connection state, role, use encryption
|
|
parameters, IP address, etc.).
|
|
|
|
sta
|
|
|
|
Show information about an associated station (when acting in AP/GO role).
|
|
|
|
all_sta
|
|
|
|
Lists the currently associated stations.
|
|
|
|
Configuration data
|
|
|
|
list_networks
|
|
|
|
Lists the configured networks, including stored information for
|
|
persistent groups. The identifier in this list is used with
|
|
p2p_group_add and p2p_invite to indicate which persistent group is to
|
|
be reinvoked.
|
|
|
|
remove_network <network id>
|
|
|
|
Remove a network entry from configuration.
|
|
|
|
|
|
P2PS Events/Responses:
|
|
|
|
P2PS-PROV-START: This events gets triggered when provisioning is issued for
|
|
either seeker or advertiser.
|
|
|
|
For example,
|
|
P2PS-PROV-START 00:55:44:33:22:11 adv_id=111 adv_mac=00:55:44:33:22:11 conncap=1 session=1234567 session_mac=00:11:22:33:44:55 info='xxxx'
|
|
|
|
Parameters definition:
|
|
MAC address - always
|
|
adv_id - always ASCII hex-encoded u32
|
|
adv_mac - always MAC address that owns/registered the service
|
|
conncap - always mask of 0x01 (new), 0x02 (group client), 0x04 (group owner)
|
|
bits
|
|
session - always Session ID of the first session to be established
|
|
session_mac - always MAC address that owns/initiated the session
|
|
info - if available, UTF-8 string
|
|
Escaped single quote & backslash with a backslash:
|
|
\' == 0x27 == ', and \\ == 0x5c == \
|
|
|
|
P2PS-PROV-DONE: When provisioning is completed then this event gets triggered.
|
|
|
|
For example,
|
|
P2PS-PROV-DONE 00:11:22:33:44:55 status=0 adv_id=111 adv_mac=00:55:44:33:22:11 conncap=1 session=1234567 session_mac=00:11:22:33:44:55 [dev_passwd_id=8 | go=p2p-wlan0-0 | join=11:22:33:44:55:66 | persist=0]
|
|
|
|
Parameters definition:
|
|
MAC address - always main device address of peer. May be different from MAC
|
|
ultimately connected to.
|
|
status - always ascii hex-encoded u8 (0 == success, 12 == deferred success)
|
|
adv_id - always ascii hex-encoded u32
|
|
adv_mac - always MAC address that owns/registered the service
|
|
conncap - always One of: 1 (new), 2 (group client), 4 (group owner) bits
|
|
session - always Session ID of the first session to be established
|
|
session_mac - always MAC address that owns/initiated the session
|
|
dev_passwd_id - only if conncap value == 1 (New GO negotiation)
|
|
8 - "p2ps" password must be passed in p2p_connect command
|
|
1 - "display" password must be passed in p2p_connect command
|
|
5 - "keypad" password must be passed in p2p_connect command
|
|
join only - if conncap value == 2 (Client Only). Display password and "join"
|
|
must be passed in p2p_connect and address must be the MAC specified
|
|
go only - if conncap value == 4 (GO Only). Interface name must be set with a
|
|
password
|
|
persist - only if previous persistent group existed between peers and shall
|
|
be re-used. Group is restarted by sending "p2p_group_add persistent=0"
|
|
where value is taken from P2P-PROV-DONE
|
|
|
|
Extended Events/Response
|
|
|
|
P2P-DEVICE-FOUND 00:11:22:33:44:55 p2p_dev_addr=00:11:22:33:44:55 pri_dev_type=0-00000000-0 name='' config_methods=0x108 dev_capab=0x21 group_capab=0x0 adv_id=111 asp_svc=alt.example.chat
|
|
|
|
Parameters definition:
|
|
adv_id - if ASP ASCII hex-encoded u32. If it is reporting the
|
|
"wildcard service", this value will be 0
|
|
asp_svc - if ASP this is the service string. If it is reporting the
|
|
"wildcard service", this value will be org.wi-fi.wfds
|
|
|
|
|
|
wpa_cli action script
|
|
---------------------
|
|
|
|
See examples/p2p-action.sh
|
|
|
|
TODO: describe DHCP/DNS setup
|
|
TODO: cross-connection
|