Connect to wifi with bash script - bash

Question

I've created a bash script that is supposed to connect to WiFi dynamically. Whether it is WPA, WEP, without password, with static ip or using DHCP.
There is the script:
#!/bin/bash
echo "Open script..."
#NO PASSWORD
if [ $3 == 0 ]
then
echo "Without Password..."
iw dev wlan0 connect $1
fi
if [ $3 == "WEP" ]
then
echo "Auth mode WEP..."
iw wlan0 connect $1 key s:$2
fi
if [ $3 == "WPA" ] || [ $3 == "WPA2" ]
then
echo "Auth mode WPA"
echo "ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
ssid=\"$1\"
psk=\"$2\"
}" | sudo tee --append /etc/wpa_supplicant/wpa_supplicant.conf >
/dev/null
echo "Finished to write on wpa supplicant..."
sudo wpa_supplicant -B -i wlan0 -c/etc/wpa_supplicant/wpa_supplicant.conf -Dwext
fi
if [ $4 == "DHCP" ]
then
echo "dhcp mode on..."
dhclient wlan0
else
echo "dhcp mode off..."
#ifconfig wlan0 $5 netmask $6 up
#route add default gw $7
#echo "nameserver $8">/etc/resolv.conf
fi
#SET DNS 2
if [ $9 != 0 ]
then
echo "dn2 configuration..."
#echo "nameserver $8">/etc/resolv.conf
fi
#RESTART UP
echo "restarting process..."
#ifconfig eth0 down
#/etc/init.d/networking restart
#pm2 stop 0
#pm2 delete 0
#pm2 start ecosystem.json
That's all. Some commands are commented because it is not finished yet. My problem is that the script isn't working. I gave it permissions on wpa_supplicant.conf, but it still does not want to work.
My errors are:
Finish to write on wpa_supplicant...
Successfully initialized wpa_supplicant
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWENCODEEXT]: Invalid argument
dhcp mode on...
restarting process...
stderr RTNETLINK answers: Operation not permitted
All variables work fine when I run the script, but somehow it still can't connect to WiFi. I've tried to use nl80211 instead and it gives me this error:
Failed to create interface
p2p-dev-wlan0: -16 (Device or resource busy) nl80211: Failed to create
a P2P Device interface p2p-dev-wlan0 P2P: Failed to enable P2P Device
interface
More verbose errors:
nl80211: TDLS supported
nl80211: Supported cipher 00-0f-ac:1
nl80211: Supported cipher 00-0f-ac:5
nl80211: Supported cipher 00-0f-ac:2
nl80211: Supported cipher 00-0f-ac:4
nl80211: Using driver-based off-channel TX
nl80211: Supported vendor command: vendor_id=0x1018 subcmd=1
nl80211: Use separate P2P group interface (driver advertised support)
nl80211: use P2P_DEVICE support
nl80211: interface wlan0 in phy phy0
nl80211: Set mode ifindex 3 iftype 2 (STATION)
nl80211: Subscribe to mgmt frames with non-AP handle 0x1b9f4a0
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=040a
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=2): 04 0a
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=040b
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=2): 04 0b
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=040c
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=2): 04 0c
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=040d
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=2): 04 0d
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=090a
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=2): 09 0a
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=090b
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=2): 09 0b
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=090c
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=2): 09 0c
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=090d
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=2): 09 0d
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=0409506f9a09
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=6): 04 09 50 6f 9a 09
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=7f506f9a09
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=5): 7f 50 6f 9a 09
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=0801
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=2): 08 01
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=040e
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=2): 04 0e
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION)
nl_handle=0x1b9f4a0 match=06
nl80211: Register frame command failed (type=208): ret=-114 (Operation
already in progress)
nl80211: Register frame match - hexdump(len=1): 06
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x1b9f4a0 match=0a07
nl80211: Register frame command failed (type=208): ret=-114 (Operation already in progress)
nl80211: Register frame match - hexdump(len=2): 0a 07
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x1b9f4a0 match=0a11
nl80211: Register frame command failed (type=208): ret=-114 (Operation already in progress)
nl80211: Register frame match - hexdump(len=2): 0a 11
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x1b9f4a0 match=1101
nl80211: Register frame command failed (type=208): ret=-114 (Operation already in progress)
nl80211: Register frame match - hexdump(len=2): 11 01
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x1b9f4a0 match=1102
nl80211: Register frame command failed (type=208): ret=-114 (Operation already in progress)
nl80211: Register frame match - hexdump(len=2): 11 02
nl80211: Register frame type=0xd0 (WLAN_FC_STYPE_ACTION) nl_handle=0x1b9f4a0 match=0505
nl80211: Register frame command failed (type=208): ret=-114 (Operation already in progress)
nl80211: Register frame match - hexdump(len=2): 05 05
nl80211: Failed to register Action frame processing - ignore for now
netlink: Operstate: ifindex=3 linkmode=1 (userspace-control), operstate=5 (IF_OPER_DORMANT)
nl80211: driver param='(null)'
Add interface wlan0 to a new radio phy0
nl80211: Regulatory information - country=00
nl80211: 2402-2472 # 40 MHz 20 mBm
nl80211: 2457-2482 # 20 MHz 20 mBm (no IR)
nl80211: 2474-2494 # 20 MHz 20 mBm (no OFDM) (no IR)
nl80211: 5170-5250 # 80 MHz 20 mBm (no IR)
nl80211: 5250-5330 # 80 MHz 20 mBm (DFS) (no IR)
nl80211: 5490-5730 # 160 MHz 20 mBm (DFS) (no IR)
nl80211: 5735-5835 # 80 MHz 20 mBm (no IR)
nl80211: 57240-63720 # 2160 MHz 0 mBm
nl80211: Added 802.11b mode based on 802.11g information
wlan0: Own MAC address: b8:27:eb:d0:13:64
wpa_driver_nl80211_set_key: ifindex=3 (wlan0) alg=0 addr=(nil) key_idx=0 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=3 (wlan0) alg=0 addr=(nil) key_idx=1 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=3 (wlan0) alg=0 addr=(nil) key_idx=2 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=3 (wlan0) alg=0 addr=(nil) key_idx=3 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=3 (wlan0) alg=0 addr=(nil) key_idx=4 set_tx=0 seq_len=0 key_len=0
wpa_driver_nl80211_set_key: ifindex=3 (wlan0) alg=0 addr=(nil) key_idx=5 set_tx=0 seq_len=0 key_len=0
wlan0: RSN: flushing PMKID list in the driver
nl80211: Flush PMKIDs
TDLS: TDLS operation supported by driver
TDLS: Driver uses internal link setup
TDLS: Driver does not support TDLS channel switching
wlan0: WPS: UUID based on MAC address: 7630b69b-9582-57c5-9979-4b06864bafb4
ENGINE: Loading dynamic engine
ENGINE: Loading dynamic engine
EAPOL: SUPP_PAE entering state DISCONNECTED
EAPOL: Supplicant port status: Unauthorized
nl80211: Skip set_supp_port(unauthorized) while not associated
EAPOL: KEY_RX entering state NO_KEY_RECEIVE
EAPOL: SUPP_BE entering state INITIALIZE
EAP: EAP entering state DISABLED
Using existing control interface directory.
ctrl_interface_group=108 (from group name 'netdev')
wlan0: Added interface wlan0
wlan0: State: DISCONNECTED -> DISCONNECTED
nl80211: Set wlan0 operstate 0->0 (DORMANT)
netlink: Operstate: ifindex=3 linkmode=-1 (no change), operstate=5 (IF_OPER_DORMANT)
nl80211: Create interface iftype 10 (P2P_DEVICE)
Failed to create interface p2p-dev-wlan0: -16 (Device or resource busy)
nl80211: Failed to create a P2P Device interface p2p-dev-wlan0
P2P: Failed to create P2P Device interface
P2P: Failed to enable P2P Device interface
Daemonize..
dhcp mode on...
restarting process...
stderr RTNETLINK answers: Operation not permitted
Can someone help me?
Edit:
Wpa supplicant after running script:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=network
update_config=1
network={
ssid="WIFI"
psk="Password"
}
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
ssid="WIFI"
psk="Password"
}
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
ssid="WIFI"
psk="Password"
}
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
ssid="WIFI"
psk="Password"
}
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
ssid="WIFI"
psk="Password"
}
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
ssid="WIFI"
psk="Password"
}
I have just noticed that the same interface has been repeated several times, but it is due more to the fact that I have launched the script over and over again