Access point configuration problem on RPi3

[n3tr4k]

Hi. I'm trying to establish AP on RPi3 with embedded wifi. So I was hoping for a quick start and tried a few tutorials:
1. https://elinux.org/RPI-Wireless-Hotspot
2. https://frillip.com/using-your-raspb...-with-hostapd/
But none of them worked out.

So I've tried manually start hostapd by running:

# hostapd /etc/hostapd/hostapd.conf
Configuration file: /etc/hostapd/hostapd.conf
wlan0: Could not connect to kernel driver
Using interface wlan0 with hwaddr b8:20:eb:10:11:33 and ssid "my-wifi-ap"
wlan0: interface state UNINITIALIZED->ENABLED
wlan0: AP-ENABLED

So it is kinda working. At least I see my AP in airodump

B8:20:EB:10:11:33  -26        2        0    0   6  54e  WPA2 CCMP   PSK  my-wifi-ap

If I try to connect to AP with my phone I see a message on RPi side:

wlan0: STA 1c:5c:f5:23:c4:11 IEEE 802.11: Could not add STA to kernel driver

There are other problems.
If I run:

# service hostapd start
Failed to start hostapd.service: Unit hostapd.service is masked.

I've checked wifi interface with:

# iw list
Supported interface modes:
	 * IBSS
	 * managed
	 * AP
	 * monitor
	 * P2P-client
	 * P2P-GO
	 * P2P-device

so I see it can work as AP.

The idea is to establish a wifi connection and ssh to RPi.

---

Additional info

# uname -a
Linux kali 4.9.59-v7_Re4son-Kali-Pi+ #1 SMP Tue Nov 21 00:36:47 CST 2017 armv7l GNU/Linux

# iwconfig 
eth0      no wireless extensions.

wlan0     IEEE 802.11  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:on
          
lo        no wireless extensions.

# cat /etc/dhcpcd.conf
denyinterfaces wlan0

# cat /etc/network/interfaces
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

# AP config for wlan0
iface wlan0 inet static
	address 192.168.1.1
	netmask 255.255.255.0
	network 192.168.1.0
	broadcast 192.168.1.255

# cat /etc/hostapd/hostapd.conf
interface=wlan0
driver=nl80211
ssid=my-wifi-ap
hw_mode=g
channel=6
ieee80211n=1
wmm_enabled=1
ht_capab=[HT40][SHORT-GI-20][DSSS_CCK-40]
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_key_mgmt=WPA-PSK
wpa_passphrase=mypass
rsn_pairwise=CCMP

# cat /etc/default/hostapd
DAEMON_CONF="/etc/hostapd/hostapd.conf"

# cat /etc/init.d/hostapd
...
PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON_SBIN=/usr/sbin/hostapd
DAEMON_DEFS=/etc/default/hostapd
DAEMON_CONF=/etc/hostapd/hostapd.conf
NAME=hostapd
DESC="advanced IEEE 802.11 management"
PIDFILE=/run/hostapd.pid

[ -x "$DAEMON_SBIN" ] || exit 0
[ -s "$DAEMON_DEFS" ] && . /etc/default/hostapd
[ -n "$DAEMON_CONF" ] || exit 0
...

# cat /etc/dnsmasq.conf
interface=wlan0 
listen-address=192.168.1.1 
bind-interfaces      
server=209.222.18.222,209.222.18.218    
domain-needed    
bogus-priv     
dhcp-range=192.168.1.2,192.168.1.20,12h

Could anyone help with that? Thanks.