Wi-Fi Station
This feature is only available on certain products and models (not available with all devices).
Configuration of RS9113 driver on the Device
If you are using the rs9113 as a Wi-Fi Station, /etc/default/rs9113, on the device, you must have the COEX_MODE variable set to 1, 3, 5, or 9. Also, you can set the country code and other parameters as documented in /etc/default/rs9113.
1. If hostapd produces errors, the COEX_MODE is incorrect. To prevent the driver from loading during boot set the value of RS9113_LOAD in /etc/default/rs9113 to zero:
RS9113_LOAD=0
2. Reboot.
3. Correct the COEX_MODE value.
4. Change the RS9113_LOAD value back to one in the file, /etc/default/rs9113.
5. From the shell, now reboot again and load the driver by entering the following command:
mtcdt: /etc/init.d/rs9113 restart
NOTE: Whenever you change the band of the rs9113 module you must reload the driver. The rs9113 module only supports 5GHz or 2.4GHz, but not both at the same time.
Bring up the VAP (Virtual Access Point) Node for Wi-Fi
1. Create network entry for wifi0 and add to /etc/network/interfaces using these lines of the auto stanza (enter them into the file rather than the command line):
auto wifi0
iface wifi0 inet dhcp
wpa-conf /etc/wpa_supplicant.conf
wpa-driver nl80211
pre-up bash -c ‘([[ -d /sys/class/net/wifi0 ]] || /opt/rs9113/onebox_util rpine0 create_vap wifi0 sta sw_bmiss)’
udhcpc_opts -t 10 -b
2. Save the file, /etc/network/interfaces.
3. To bring up the interface for scanning, enter these commands (at the bash line):
mtcdt: /opt/rs9113/onebox_util rpine0 create_vap wifi0 sta sw_bmiss
mtcdt: ip link set dev wifi0 up
4. Then scan by entering this command (signal strengths are displayed in -dBm):
mtcdt: iw dev wifi0 scan | tee /tmp/scan.txt
Configuring Wi-Fi Station/wpa_supplicant
1. You need to create a Wi-Fi configuration. You may already have the necessary information such as the passphrase (psk). But if you do not have this information, the scan command can provide it:
mtcdt: iw dev wifi0 scan | tee /tmp/scan.txt
Example output from a scan:
BSS 9c:4e:20:c8:ee:9e(on wifi0) TSF: 0 usec (0d, 00:00:00) freq: 5785 beacon interval: 102 TUs capability: ESS Privacy RadioMeasure (0x1011) signal: -72.00 dBm last seen: 2720 ms ago Information elements from Probe Response frame: SSID: Mtech_guest Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0 TIM: DTIM Count 0 DTIM Period 1 Bitmap Control 0x0 Bitmap[0] 0x0 (+ 3 octets) Country: US Environment: Indoor/Outdoor Channels [36 - 48] @ 17 dBm Channels [52 - 64] @ 24 dBm Channels [100 - 116] @ 24 dBm Channels [132 - 140] @ 24 dBm Channels [149 - 165] @ 30 dBm BSS Load: * station count: 14 * channel utilisation: 7/255 * available admission capacity: 23437 [*32us] HT capabilities: Capabilities: 0x182c HT20 SM Power Save disabled RX HT20 SGI No RX STBC Max AMSDU length: 7935 bytes DSSS/CCK HT40 Maximum RX AMPDU length 65535 bytes (exponent: 0x003) Minimum RX AMPDU time spacing: 8 usec (0x06) HT RX MCS rate indexes supported: 0-15 HT TX MCS rate indexes are undefined RSN: * Version: 1 * Group cipher: CCMP * Pairwise ciphers: CCMP * Authentication suites: PSK * Capabilities: PreAuth 4-PTKSA-RC 4-GTKSA-RC (0x0029) HT operation: * primary channel: 157 * secondary channel offset: no secondary * STA channel width: 20 MHz * RIFS: 1 * HT protection: no * non-GF present: 1 * OBSS non-GF present: 0 * dual beacon: 0 * dual CTS protection: 0 * STBC beacon: 0 * L-SIG TXOP Prot: 0 * PCO active: 0 * PCO phase: 0 Extended capabilities: Proxy ARP Service, WNM-Notification WMM: * Parameter version 1 * u-APSD * BE: CW 15-1023, AIFSN 3 * BK: CW 15-1023, AIFSN 7 * VI: CW 7-15, AIFSN 2, TXOP 3008 usec * VO: CW 3-7, AIFSN 2, TXOP 1504 usec
2. Then, optionally, hash the password. Use the wpa_passphrase to hash the password:
mtcdt: wpa_passphrase Mtech_guest 'Mtech_guest_password' >/tmp/m.conf
The output of wpa_passphrase includes the unhashed password as a comment. Remove this comment before putting the psk into the wpa_supplicant configuration.
3. Now enter the generated psk, SSID and BSSID of the router in /etc/wpa_supplicant.conf:
ctrl_interface=/run/wpa_supplicant
update_config=1
fast_reauth=1
ap_scan=1
network={
bssid=9c:4e:20:c8:ee:9e
ssid="Mtech_guest"
psk=babc4085713f121c819d0da8694184b25f035f860246b195a2d99d5c2b383725>
scan_ssid=1
key_mgmt=WPA-PSK
priority=1
proto=WPA RSN
pairwise=CCMP TKIP
group=CCMP TKIP
}
Start the wpa_supplicant Daemon
1. Start wpa_supplicant and bring up the interface (choose the appropriate file) using the following commands:
mtcdt: ifdown wifi0 Successfully initialized wpa_supplicant mtcdt: ifup wifi0 dhcpc (v1.22.1) started Sending discover... Sending select for 192.168.1.5... Lease of 192.168.1.5 obtained, lease time 86400 etc/udhcpc.d/50default: Adding DNS 192.168.1.1
2. Now verify the connection either from another screen, or use <ctrl>+z followed by bg %1 to put wpa_supplicant in the background:
mtcdt: iw dev wifi0 link Connected to 9c:4e:20:c8:ee:9e (on wifi0) SSID: Mtech_guest freq: 5785
3. Enter the ifup from another screen (using ethernet or ssh):
mtcdt: ifdown wifi0 mtcdt: ifup wifi0 dhcpc (v1.22.1) started Sending discover... Sending select for 192.168.1.5... Lease of 192.168.1.5 obtained, lease time 86400 /etc/udhcpc.d/50default: Adding DNS 192.168.1.1
4. Start DHCP if the previous setup did not acquire an address:
mtcdt: udhcpc -R -n -p /var/run/udhcpc.wifi0.pid -i wifi0
udhcpc (v1.22.1) started Sending discover... Sending select for 192.168.1.7... Lease of 192.168.1.7 obtained, lease time 86400 /etc/udhcpc.d/50default: Adding DNS 192.168.1.1
Integration of boot, ifup, and ifdown with Wi-Fi station
To allow ifup and ifdown commands to work with wpa_supplicant, and to connect at boot, the file /etc/network/interfaces must be configured.
This configuration creates the wifi0 VAP at boot:
auto wifi0 iface wifi0 inet dhcp wpa-conf /etc/wpa_supplicant.conf wpa-driver nl80211 pre-up bash -c '([[ -d /sys/class/net/wifi0 ]] || /opt/rs9113/onebox_util rpine0 create_vap wifi0 sta sw_bmiss)' udhcpc_opts -t 10 -b
The wifi0 VAP does not exist before the pre-up section is run. The wpa_supplicant.conf file should contain an SSID, and other configurations as shown in the prior section Configuring Wi-Fi Station/wpa_supplicant.
The udhcpc program has the following options applied at boot and by ifup:
udhcpc -R -n -p /var/run/udhcpc.wifi0.pid -i wifi0
These options specified by udhcpc_opts are added to the end:
udhcpc -R -n -p /var/run/udhcpc.wifi0.pid -i wifi0 -t 10 -b
This means that the boot or ifup command is held up for up to ten attempts to reach the DHCP server. The -b option means that udhcpc is placed in the background after the 10 attempts are complete. Then the boot proceeds or if -b option is not specified, ifup command terminates.
The interface is available after the udhcpc daemon receives a response from the DHCP server. Without the -b option, udhcpc holds up the boot or ifup command until the DHCP server responds.
When -t is set to 0, the -b option is ignored. In this case, udhcp blocks until the DHCP has responded, and tries indefinitely.
Without any options, udhcpc will wait approximately nine seconds for a response, and abort if none is received. At this point, you will need to try running ifup again, or reboot the device.
For more information refer to: https://busybox.net/downloads/BusyBox.html
ifdown wifi0