HEADSUP: ifconfig updated

I just committed a major overhaul of ifconfig.  If you see any regression in 
backwards compatiblity please let me know.  I've been running it for a while 
w/o issues but the command line parsing was completely redone and I didn't 
test all the possible operations (e.g. ipv6 tunnel stuff).

The main visible change is in the handling of 802.11 interface.s  You may see 
many new parameters and there are many new controls for use with the revised 
net80211 layer and the update ath driver.  There are also some experimental 
commands for listing status for a device that might move to a different 
program (based on feedback).  For example when operating as a station you can 
list the set  of access points found in the last scan with

minky# ifconfig ath0 list scan
SSID            BSSID              CHAN RATE  S:N   INT CAPS
TestAP          00:02:6f:01:86:2a    3   11M 24:0   100 E
CurryNet1       00:09:5b:9f:0c:52    7   11M  1:0   100 Ec
samb            00:03:7f:00:c8:32   11   54M 57:0   100 ES
sama            00:03:7f:00:c8:31   60   54M 57:0   100 E

When operating as an access point or in adhoc mode you can get a similar 
listing of the stations/neighbors using "list sta".

The default status for an 802.11 device is now a bit more minimal.  To get 
complete status there is a new -v option; for example:

minky# ifconfig ath0
ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet 10.0.0.142 netmask 0xffffff00 broadcast 10.0.0.255
        ether 00:03:7f:04:a0:a4
        media: IEEE 802.11 Wireless Ethernet autoselect (OFDM/54Mbps)
        status: associated
        ssid samb channel 11 bssid 00:03:7f:00:c8:32
        authmode OPEN privacy OFF txpowmax 48 protmode CTS wme bintval 100
minky# ifconfig -v ath0
ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet 10.0.0.142 netmask 0xffffff00 broadcast 10.0.0.255
        ether 00:03:7f:04:a0:a4
        media: IEEE 802.11 Wireless Ethernet autoselect (OFDM/54Mbps)
        status: associated
        ssid samb channel 11 (2462) bssid 00:03:7f:00:c8:32
        authmode OPEN privacy OFF deftxkey UNDEF powersavemode OFF
        powersavesleep 100 txpowmax 48 txpower 60 rtsthreshold 2312 protmode 
CTS
        wme roaming AUTO bintval 100
        AC_BE cwmin  4 cwmax 10 aifs  3 txopLimit   0 -acm ack
              cwmin  4 cwmax 10 aifs  3 txopLimit   0 -acm
        AC_BK cwmin  4 cwmax 10 aifs  7 txopLimit   0 -acm ack
              cwmin  4 cwmax 10 aifs  7 txopLimit   0 -acm
        AC_VI cwmin  3 cwmax  4 aifs  2 txopLimit  94 -acm ack
              cwmin  3 cwmax  4 aifs  2 txopLimit  94 -acm
        AC_VO cwmin  2 cwmax  3 aifs  2 txopLimit  47 -acm ack
              cwmin  2 cwmax  3 aifs  2 txopLimit  47 -acm

Finally, you can get some device capability-style information.  To see the set 
of available channels a device is capable of using, use "list chan":

minky# ifconfig ath0 list chan
Channel   1 : 2412  Mhz 11g          Channel  48 : 5240  Mhz 11a
Channel   2 : 2417  Mhz 11g          Channel  50 : 5250  Mhz 11a Turbo
Channel   3 : 2422  Mhz 11g          Channel  52 : 5260  Mhz 11a
Channel   4 : 2427  Mhz 11g          Channel  56 : 5280  Mhz 11a
Channel   5 : 2432  Mhz 11g          Channel  58 : 5290  Mhz 11a Turbo
Channel   6 : 2437  Mhz 11g          Channel  60 : 5300  Mhz 11a
Channel   7 : 2442  Mhz 11g          Channel  64 : 5320  Mhz 11a
Channel   8 : 2447  Mhz 11g          Channel 149 : 5745  Mhz 11a
Channel   9 : 2452  Mhz 11g          Channel 152 : 5760  Mhz 11a Turbo
Channel  10 : 2457  Mhz 11g          Channel 153 : 5765  Mhz 11a
Channel  11 : 2462  Mhz 11g          Channel 157 : 5785  Mhz 11a
Channel  36 : 5180  Mhz 11a          Channel 160 : 5800  Mhz 11a Turbo
Channel  40 : 5200  Mhz 11a          Channel 161 : 5805  Mhz 11a
Channel  42 : 5210  Mhz 11a Turbo    Channel 165 : 5825  Mhz 11a
Channel  44 : 5220  Mhz 11a

(when a channel is marked with a "*" that means you can only do a passive 
scan--i.e. you can only listen for an ap and not actively send a probe 
request frame).  Similarly, "list active" will show the set of channels 
currently enabled for use, taking into account restrictions due to locking 
the band (e.g with "mode 11a") or through the channel list mechanism.

Finally, you can see the set of capabilites an 802.11 driver has specified 
using "list caps":

 minky# ifconfig ath0 list caps
ath0=783e50f<WEP,TKIP,AES,AES_CCM,IBSS,HOSTAP,TXPMGT,SHSLOT,SHPREAMBLE,MONITOR,T
KIPMIC,WPA1,WPA2,BURST,WME>

You can also change these so, for example, you can disable hardware crypto 
support in a driver to test a software implementation.

The ifconfig manual page is currently lagging behind the code.  I'll be 
updating it as soon as I have time (volunteers welcome).

	Sam