hostapd: document ubus methods
authorStijn Tintel <stijn@linux-ipv6.be>
Mon, 9 May 2022 11:55:42 +0000 (14:55 +0300)
committerStijn Tintel <stijn@linux-ipv6.be>
Tue, 21 Jun 2022 13:19:42 +0000 (16:19 +0300)
Document the ubus methods we added to hostapd so that people don't have
to read code to figure out which methods are available and what they do.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
package/network/services/hostapd/README.md [new file with mode: 0644]

diff --git a/package/network/services/hostapd/README.md b/package/network/services/hostapd/README.md
new file mode 100644 (file)
index 0000000..bd347c6
--- /dev/null
@@ -0,0 +1,416 @@
+# UBUS methods - hostapd
+
+## bss_mgmt_enable
+Enable 802.11k/v features.
+
+### arguments
+| Name | Type | Required | Description |
+|---|---|---|---|
+| neighbor_report | bool | no | enable 802.11k neighbor reports |
+| beacon_report | bool | no | enable 802.11k beacon reports |
+| link_measurements | bool | no | enable 802.11k link measurements |
+| bss_transition | bool | no | enable 802.11v BSS transition support |
+
+### example
+`ubus call hostapd.wl5-fb bss_mgmt_enable '{ "neighbor_report": true, "beacon_report": true, "link_measurements": true, "bss_transition": true
+}'`
+
+
+## bss_transition_request
+Initiate an 802.11v transition request.
+
+### arguments
+| Name | Type | Required | Description |
+|---|---|---|---|
+| addr | string | yes | client MAC address |
+| disassociation_imminent | bool | no | set Disassociation Imminent bit |
+| disassociation_timer | int32 | no | disassociate client if it doesn't roam after this time |
+| validity_period | int32 | no | validity of the BSS Transition Candiate List |
+| neighbors | array | no | BSS Transition Candidate List |
+| abridged | bool | no | prefer APs in the BSS Transition Candidate List |
+| dialog_token | int32 | no | identifier for the request/report transaction |
+
+### example
+`ubus call hostapd.wl5-fb bss_transition_request '{ "addr": "68:2F:67:8B:98:ED", "disassociation_imminent": false, "disassociation_timer": 0, "validity_period": 30, "neighbors": ["b6a7b9cbeebabf5900008064090603026a00"], "abridged": 1 }'`
+
+
+## config_add
+Dynamically load a BSS configuration from a file. This is used by netifd's mac80211 support script to configure BSSes on multiple PHYs in a single hostapd instance.
+
+### arguments
+| Name | Type | Required | Description |
+|---|---|---|---|
+| iface | string | yes | WiFi interface name |
+| config | string | yes | path to hostapd config file |
+
+
+## config_remove
+Dynamically remove a BSS configuration.
+
+### arguments
+| Name | Type | Required | Description |
+|---|---|---|---|
+| iface | string | yes | WiFi interface name |
+
+
+## del_client
+Kick a client off the network.
+
+### arguments
+| Name | Type | Required | Description |
+|---|---|---|---|
+| addr | string | yes | client MAC address |
+| reason | int32 | no | 802.11 reason code |
+| deauth | bool | no | deauthenticates client instead of disassociating |
+| ban_time | int32 | no | ban client for N milliseconds |
+
+### example
+`ubus call hostapd.wl5-fb del_client '{ "addr": "68:2f:67:8b:98:ed", "reason": 5, "deauth": true, "ban_time": 10000 }'`
+
+
+## get_clients
+Show associated clients.
+
+### example
+`ubus call hostapd.wl5-fb get_clients`
+
+### output
+```json
+{
+        "freq": 5260,
+        "clients": {
+                "68:2f:67:8b:98:ed": {
+                        "auth": true,
+                        "assoc": true,
+                        "authorized": true,
+                        "preauth": false,
+                        "wds": false,
+                        "wmm": true,
+                        "ht": true,
+                        "vht": true,
+                        "he": false,
+                        "wps": false,
+                        "mfp": true,
+                        "rrm": [
+                                0,
+                                0,
+                                0,
+                                0,
+                                0
+                        ],
+                        "extended_capabilities": [
+                                0,
+                                0,
+                                0,
+                                0,
+                                0,
+                                0,
+                                0,
+                                64
+                        ],
+                        "aid": 3,
+                        "signature": "wifi4|probe:0,1,45,127,107,191,221(0017f2,10),221(001018,2),htcap:006f,htagg:1b,htmcs:0000ffff,vhtcap:0f825832,vhtrxmcs:0000ffea,vhttxmcs:0000ffea,extcap:0000008000000040|assoc:0,1,33,36,48,45,127,191,221(0017f2,10),221(001018,2),221(0050f2,2),htcap:006f,htagg:1b,htmcs:0000ffff,vhtcap:0f825832,vhtrxmcs:0000ffea,vhttxmcs:0000ffea,txpow:14f9,extcap:0000000000000040",
+                        "bytes": {
+                                "rx": 1933667,
+                                "tx": 746805
+                        },
+                        "airtime": {
+                                "rx": 208863,
+                                "tx": 9037883
+                        },
+                        "packets": {
+                                "rx": 3587,
+                                "tx": 2185
+                        },
+                        "rate": {
+                                "rx": 866700,
+                                "tx": 866700
+                        },
+                        "signal": -50,
+                        "capabilities": {
+                                "vht": {
+                                        "su_beamformee": true,
+                                        "mu_beamformee": false,
+                                        "mcs_map": {
+                                                "rx": {
+                                                        "1ss": 9,
+                                                        "2ss": 9,
+                                                        "3ss": 9,
+                                                        "4ss": -1,
+                                                        "5ss": -1,
+                                                        "6ss": -1,
+                                                        "7ss": -1,
+                                                        "8ss": -1
+                                                },
+                                                "tx": {
+                                                        "1ss": 9,
+                                                        "2ss": 9,
+                                                        "3ss": 9,
+                                                        "4ss": -1,
+                                                        "5ss": -1,
+                                                        "6ss": -1,
+                                                        "7ss": -1,
+                                                        "8ss": -1
+                                                }
+                                        }
+                                }
+                        }
+                }
+        }
+}
+```
+
+
+## get_features
+Show HT/VHT support.
+
+### example
+`ubus call hostapd.wl5-fb get_features`
+
+### output
+```json
+{
+        "ht_supported": true,
+        "vht_supported": true
+}
+```
+
+
+## get_status
+Get BSS status.
+
+### example
+`ubus call hostapd.wl5-fb get_status`
+
+### output
+```json
+{
+        "status": "ENABLED",
+        "bssid": "b6:a7:b9:cb:ee:bc",
+        "ssid": "fb",
+        "freq": 5260,
+        "channel": 52,
+        "op_class": 128,
+        "beacon_interval": 100,
+        "phy": "wl5-lan",
+        "rrm": {
+                "neighbor_report_tx": 0
+        },
+        "wnm": {
+                "bss_transition_query_rx": 0,
+                "bss_transition_request_tx": 0,
+                "bss_transition_response_rx": 0
+        },
+        "airtime": {
+                "time": 259561738,
+                "time_busy": 2844249,
+                "utilization": 0
+        },
+        "dfs": {
+                "cac_seconds": 60,
+                "cac_active": false,
+                "cac_seconds_left": 0
+        }
+}
+```
+
+
+## link_measurement_req
+Initiate an 802.11k Link Measurement Request.
+
+### arguments
+| Name | Type | Required | Description |
+|---|---|---|---|
+| addr | string | yes | client MAC address |
+| tx-power-used | int32 | no | transmit power used to transmit the Link Measurement Request frame |
+| tx-power-max | int32 | no | upper limit of transmit power to be used by the client |
+
+
+## list_bans
+List banned clients.
+
+### example
+`ubus call hostapd.wl5-fb list_bans`
+
+### output
+```json
+{
+        "clients": [
+                "68:2f:67:8b:98:ed"
+        ]
+}
+```
+
+
+## notify_response
+When enabled, hostapd will send a ubus notification and wait for a response before responding to various requests. This is used by e.g. usteer to make it possible to ignore probe requests.
+
+:warning: enabling this will cause hostapd to stop responding to probe requests unless a ubus subscriber responds to the ubus notifications.
+
+### arguments
+| Name | Type | Required | Description |
+|---|---|---|---|
+| notify_response | int32 | yes | disable (0) or enable (!0) |
+
+### example
+`ubus call hostapd.wl5-fb notify_response '{ "notify_response": 1 }'`
+
+## reload
+Reload BSS configuration.
+
+:warning: this can cause problems for certain configurations:
+
+```
+Mon May 16 16:09:08 2022 daemon.warn hostapd: Failed to check if DFS is required; ret=-1
+Mon May 16 16:09:08 2022 daemon.warn hostapd: Failed to check if DFS is required; ret=-1
+Mon May 16 16:09:08 2022 daemon.err hostapd: Wrong coupling between HT and VHT/HE channel setting
+```
+
+### example
+`ubus call hostapd.wl5-fb reload`
+
+
+## rrm_beacon_req
+Send a Beacon Measurement Request to a client.
+
+### arguments
+| Name | Type | Required | Description |
+|---|---|---|---|
+| addr | string | yes | client MAC address |
+| op_class | int32 | yes | the Regulatory Class for which this Measurement Request applies |
+| channel | int32 | yes | channel to measure |
+| duration | int32 | yes | compile Beacon Measurement Report after N TU |
+| mode | int32 | yes | mode to be used for measurement (0: passive, 1: active, 2: beacon table) |
+| bssid | string | no | filter BSSes in Beacon Measurement Report by BSSID |
+| ssid | string | no | filter BSSes in Beacon Measurement Report by SSID|
+
+
+## rrm_nr_get_own
+Show Neighbor Report Element for this BSS.
+
+### example
+`ubus call hostapd.wl5-fb rrm_nr_get_own`
+
+### output
+```json
+{
+        "value": [
+                "b6:a7:b9:cb:ee:bc",
+                "fb",
+                "b6a7b9cbeebcaf5900008095090603029b00"
+        ]
+}
+```
+
+
+## rrm_nr_list
+Show Neighbor Report Elements for other BSSes in this ESS.
+
+### example
+`ubus call hostapd.wl5-fb rrm_nr_list`
+
+### output
+```json
+{
+        "list": [
+                [
+                        "b6:a7:b9:cb:ee:ba",
+                        "fb",
+                        "b6a7b9cbeebabf5900008064090603026a00"
+                ]
+        ]
+}
+```
+
+## rrm_nr_set
+Set the Neighbor Report Elements. An element for the node on which this command is executed will always be added.
+
+### arguments
+| Name | Type | Required | Description |
+|---|---|---|---|
+| list | array | yes | array of Neighbor Report Elements in the format of the rrm_nr_list output |
+
+### example
+`ubus call hostapd.wl5-fb rrm_nr_set '{ "list": [ [ "b6:a7:b9:cb:ee:ba", "fb", "b6a7b9cbeebabf5900008064090603026a00" ] ] }'`
+
+
+## set_vendor_elements
+Configure Vendor-specific Information Elements for BSS.
+
+### arguments
+| Name | Type | Required | Description |
+|---|---|---|---|
+| vendor_elements | string | yes | Vendor-specific Information Elements as hex string |
+
+### example
+`ubus call hostapd.wl5-fb set_vendor_elements '{ "vendor_elements": "dd054857dd6662" }'`
+
+
+## switch_chan
+Initiate a channel switch.
+
+:warning: trying to switch to the channel that is currently in use will fail: `Command failed: Operation not supported`
+
+### arguments
+| Name | Type | Required | Description |
+|---|---|---|---|
+| freq | int32 | yes | frequency in MHz to switch to |
+| bcn_count | int32 | no | count in Beacon frames (TBTT) to perform the switch |
+| center_freq1 | int32 | no | segment 0 center frequency in MHz (valid for HT and VHT) |
+| center_freq2 | int32 | no | segment 1 center frequency in MHz (valid only for 80 MHz channel width and an 80+80 channel) |
+| bandwidth | int32 | no | channel width to use |
+| sec_channel_offset| int32 | no | secondary channel offset for HT40 (0 = disabled, 1 = HT40+, -1 = HT40-) |
+| ht | bool | no | enable 802.11n |
+| vht | bool | no | enable 802.11ac |
+| he | bool | no | enable 802.11ax |
+| block_tx | bool | no | block transmission during CSA period |
+| csa_force | bool | no | restart the interface in case the CSA fails |
+
+## example
+`ubus call hostapd.wl5-fb switch_chan '{ "freq": 5180, "bcn_count": 10, "center_freq1": 5210, "bandwidth": 80, "he": 1, "block_tx": 1, "csa_force": 0 }'`
+
+
+## update_airtime
+Set dynamic airtime weight for client.
+
+### arguments
+| Name | Type | Required | Description |
+|---|---|---|---|
+| sta | string | yes | client MAC address |
+| weight | int32 | yes | airtime weight |
+
+
+## update_beacon
+Force beacon frame content to be updated and to start beaconing on an interface that uses start_disabled=1.
+
+### example
+`ubus call hostapd.wl5-fb update_beacon`
+
+
+## wps_status
+Get WPS status for BSS.
+
+### example
+`ubus call hostapd.wl5-fb wps_status`
+
+### output
+```json
+{
+        "pbc_status": "Disabled",
+        "last_wps_result": "None"
+}
+```
+
+
+## wps_cancel
+Cancel WPS Push Button Configuration.
+
+### example
+`ubus call hostapd.wl5-fb wps_cancel`
+
+
+## wps_start
+Start WPS Push Button Configuration.
+
+### example
+`ubus call hostapd.wl5-fb wps_start`