creating wlan0

grodzix · Apr 19, 2010

I wanted to do

Code:

ifconfig ath0 scan

but it returns

Code:

ifconfig: unable to get scan results

so I started readin and I read that in FreeBSD 8 you need to create wlan interface. That's what I've found that I'm supposed to do to get it

Code:

ifconfig wlan0 create wlandev ath0

but it throws following error

Code:

ifconfig: SIOCIFCREATE2: Bad address

and I have no idea what does it mean. I cannot find anything on the web.

I also tried adding

Code:

wlans_ath0="wlan0"

to /etc/rc.conf but it doesn't seem to be doing anything. I cannot find anything in /var/log/messages and in dmesg.

Code:

uname -a
FreeBSD grodzix.net 8.0-RELEASE-p2 FreeBSD 8.0-RELEASE-p2 #0: Tue Jan  5 16:02:27 UTC 2010     root@i386-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  i386

Any pointers would be appreciated.

psycho · Apr 19, 2010

maybe this could be useful. ifconfig.c !
And I found this part relevant (?) :

Code:

void
clone_create(void)
{
	int s;
	
	s = socket(AF_INET, SOCK_DGRAM, 0);
	if (s == -1)
		err(1, "socket");
	
	memset(&ifr, 0, sizeof(ifr));
	(void) strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
	if (ioctl(s, SIOCIFCREATE, &ifr) < 0)
		err(1, "SIOCIFCREATE");
	
	if (strcmp(name, ifr.ifr_name) != 0) {
		printf("%s\n", ifr.ifr_name);
		strlcpy(name, ifr.ifr_name, sizeof(name));
	}
	
	close(s);
}

It is at bottom of link.

creating wlan0

grodzix

psycho