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espressif / esp-hosted

Hosted Solution (Linux/MCU) with ESP32 (Wi-Fi + BT + BLE)
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Unable to get link information via `iw espsta0 link` #320

Closed Philipansari closed 9 months ago

Philipansari commented 9 months ago

I try to use an ESP32-C3 chip as a wifi-card on an OpenWRT Linux System. Overall the Setup is working as intended:

Using the CLI, I am able to bring up the interface, execute a scan, change the mac-address and connect to a station. 

$ ifconfig espsta0 up
$ iw dev espsta0 scan
$ ip link set espsta0 addr 10:20:30:40:50:60
$ wpa_supplicant -D nl80211 -i espsta0 -c ~/wpa2.conf
$ udhcpc -i espsta0 -R

This is working fine. Great project by the way!

However, getting information about the link is not working as intended for a generic cfg80211 driver:

Current Output: 

  $ iw espsta0 link
  Connected to ea:38:82:53:3c:c5 (on espsta0)
          SSID: MyStation
          freq: 2412
  command failed: Operation not supported (-95)

Expected Output (i.e.):

  iw espsta0 link
  Connected to ea:38:82:53:3c:c5 (on espsta0)
          SSID: MyStation
          freq: 2412
          RX: 765770236 bytes (4123461 packets)
          TX: 630341 bytes (7712 packets)
          signal: -49 dBm
          rx bitrate: 72.2 MBit/s MCS 7 short GI
          tx bitrate: 72.2 MBit/s MCS 7 short GI

          bss flags:      short-preamble short-slot-time
          dtim period:    1
          beacon int:     100

I believe the current esp-hosted driver is capable of supporting these features. Probably only the wiphy device (?) needs to get these features registered in the cfg80211 standard?

Can you please point out where to adjust the driver in order to enable this feature?

Maybe helpful information

Before I switched to this project I used an old driver for the ESP8089. There it is possible to read out the connection information and use a few other functions that are helpful for the web-based control by LUCI on the OpenWRT-System.

iw list for esp-hosted driver

Wiphy phy0
        wiphy index: 0
        max # scan SSIDs: 10
        max scan IEs length: 1000 bytes
        max # sched scan SSIDs: 10
        max # match sets: 0
        Retry short limit: 7
        Retry long limit: 4
        Coverage class: 0 (up to 0m)
        Supported Ciphers:
                * WEP40 (00-0f-ac:1)
                * WEP104 (00-0f-ac:5)
                * TKIP (00-0f-ac:2)
                * CCMP-128 (00-0f-ac:4)
                * WPI-SMS4 (00-14-72:1)
                * CMAC (00-0f-ac:6)
        Available Antennas: TX 0 RX 0
        Supported interface modes:
                 * managed
        Band 1:
                Bitrates (non-HT):
                        * 1.0 Mbps
                        * 2.0 Mbps
                        * 5.5 Mbps
                        * 11.0 Mbps
                        * 6.0 Mbps
                        * 9.0 Mbps
                        * 12.0 Mbps
                        * 18.0 Mbps
                        * 24.0 Mbps
                        * 36.0 Mbps
                        * 48.0 Mbps
                        * 54.0 Mbps
                Frequencies:
                        * 2412 MHz [1] (20.0 dBm)
                        * 2417 MHz [2] (20.0 dBm)
                        * 2422 MHz [3] (20.0 dBm)
                        * 2427 MHz [4] (20.0 dBm)
                        * 2432 MHz [5] (20.0 dBm)
                        * 2437 MHz [6] (20.0 dBm)
                        * 2442 MHz [7] (20.0 dBm)
                        * 2447 MHz [8] (20.0 dBm)
                        * 2452 MHz [9] (20.0 dBm)
                        * 2457 MHz [10] (20.0 dBm)
                        * 2462 MHz [11] (20.0 dBm)
                        * 2467 MHz [12] (20.0 dBm) (no IR)
                        * 2472 MHz [13] (20.0 dBm) (no IR)
                        * 2484 MHz [14] (20.0 dBm) (no IR)
        Supported commands:
                 * new_key
                 * authenticate
                 * associate
                 * deauthenticate
                 * disassociate
                 * frame
                 * connect
                 * disconnect
        WoWLAN support:
                 * wake up on anything (device continues operating normally)
                 * wake up on magic packet
        software interface modes (can always be added):
        interface combinations are not supported
        Device supports SAE with AUTHENTICATE command
        Device supports scan flush.
        max # scan plans: 1
        max scan plan interval: -1
        max scan plan iterations: 0
        Supported extended features:

iw list for an older esp-wifi driver (based on esp8089)

Wiphy phy0
        wiphy index: 0
        max # scan SSIDs: 4
        max scan IEs length: 2257 bytes
        max # sched scan SSIDs: 0
        max # match sets: 0
        Fragmentation threshold: 2352
        Retry short limit: 7
        Retry long limit: 4
        Coverage class: 0 (up to 0m)
        Supported Ciphers:
                * WEP40 (00-0f-ac:1)
                * WEP104 (00-0f-ac:5)
                * TKIP (00-0f-ac:2)
                * CCMP-128 (00-0f-ac:4)
        Available Antennas: TX 0 RX 0
        Supported interface modes:
                 * managed
                 * AP
                 * AP/VLAN
                 * monitor
                 * P2P-client
                 * P2P-GO
        Band 1:
                Capabilities: 0x112c
                        HT20
                        SM Power Save disabled
                        RX HT20 SGI
                        RX STBC 1-stream
                        Max AMSDU length: 3839 bytes
                        DSSS/CCK HT40
                Maximum RX AMPDU length 16383 bytes (exponent: 0x001)
                Minimum RX AMPDU time spacing: No restriction (0x00)
                HT RX MCS rate indexes supported: 0-7
                HT TX MCS rate indexes are undefined
                Bitrates (non-HT):
                        * 1.0 Mbps
                        * 2.0 Mbps (short preamble supported)
                        * 5.5 Mbps (short preamble supported)
                        * 11.0 Mbps (short preamble supported)
                        * 6.0 Mbps
                        * 9.0 Mbps
                        * 12.0 Mbps
                        * 18.0 Mbps
                        * 24.0 Mbps
                        * 36.0 Mbps
                        * 48.0 Mbps
                        * 54.0 Mbps
                Frequencies:
                        * 2412 MHz [1] (20.0 dBm)
                        * 2417 MHz [2] (20.0 dBm)
                        * 2422 MHz [3] (20.0 dBm)
                        * 2427 MHz [4] (20.0 dBm)
                        * 2432 MHz [5] (20.0 dBm)
                        * 2437 MHz [6] (20.0 dBm)
                        * 2442 MHz [7] (20.0 dBm)
                        * 2447 MHz [8] (20.0 dBm)
                        * 2452 MHz [9] (20.0 dBm)
                        * 2457 MHz [10] (20.0 dBm)
                        * 2462 MHz [11] (20.0 dBm)
                        * 2467 MHz [12] (20.0 dBm) (no IR)
                        * 2472 MHz [13] (20.0 dBm) (no IR)
        Supported commands:
                 * new_interface
                 * set_interface
                 * new_key
                 * start_ap
                 * new_station
                 * new_mpath
                 * set_mesh_config
                 * set_bss
                 * authenticate
                 * associate
                 * deauthenticate
                 * disassociate
                 * join_ibss
                 * join_mesh
                 * remain_on_channel
                 * set_tx_bitrate_mask
                 * frame
                 * frame_wait_cancel
                 * set_wiphy_netns
                 * set_channel
                 * set_wds_peer
                 * probe_client
                 * set_noack_map
                 * register_beacons
                 * start_p2p_device
                 * set_mcast_rate
                 * connect
                 * disconnect
                 * set_qos_map
                 * set_multicast_to_unicast
        software interface modes (can always be added):
                 * managed
                 * AP
                 * AP/VLAN
                 * monitor
                 * P2P-client
                 * P2P-GO
        interface combinations are not supported
        HT Capability overrides:
                 * MCS: ff ff ff ff ff ff ff ff ff ff
                 * maximum A-MSDU length
                 * supported channel width
                 * short GI for 40 MHz
                 * max A-MPDU length exponent
                 * min MPDU start spacing
        Device supports TX status socket option.
        Device supports HT-IBSS.
        Device supports SAE with AUTHENTICATE command
        Device supports low priority scan.
        Device supports scan flush.
        Device supports AP scan.
        Device supports per-vif TX power setting
        Driver supports full state transitions for AP/GO clients
        Driver supports a userspace MPM
        Device supports configuring vdev MAC-addr on create.
        max # scan plans: 1
        max scan plan interval: -1
        max scan plan iterations: 0
        Supported TX frame types:
                 * IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
                 * managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
                 * AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
                 * AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
                 * mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
                 * P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
                 * P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
                 * P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
        Supported RX frame types:
                 * IBSS: 0x40 0xb0 0xc0 0xd0
                 * managed: 0x40 0xb0 0xd0
                 * AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
                 * AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
                 * mesh point: 0xb0 0xc0 0xd0
                 * P2P-client: 0x40 0xd0
                 * P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
                 * P2P-device: 0x40 0xd0
        Supported extended features:
                * [ RRM ]: RRM
                * [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
                * [ SCAN_RANDOM_SN ]: use random sequence numbers in scans
                * [ SCAN_MIN_PREQ_CONTENT ]: use probe request with only rate IEs in scans
                * [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support
                * [ SCAN_FREQ_KHZ ]: scan on kHz frequency support
                * [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support
mantriyogesh commented 9 months ago

@kapilkedawat ++

kapilkedawat commented 9 months ago

Hi @Philipansari , we will add basic support for link info.

The difference that you see b/w hosted-ng and older esp8089 based on driver is that esp8089 driver is based on mac80211 whereas this is a full mac solution where most of the things are done in firmware.

kapilkedawat commented 9 months ago

@Philipansari this was added in https://github.com/espressif/esp-hosted/commit/14e409823e788caa65abfa3984c40198292af720

Philipansari commented 9 months ago

Tested the new changes. Now the output is defined without throwing an error:

$ iw espsta0 link
Connected to ea:38:82:53:3c:c5 (on espsta0)
        SSID: MyStation
        freq: 2412
        RX: 6485 bytes (60 packets)
        TX: 5040 bytes (17 packets)
        signal: -60 dBm

Thanks for the integration!