On 2014/07/21 17:17, Charles Musser wrote:
> 
> On Jul 18, 2014, at 3:09 PM, Stuart Henderson <s...@spacehopper.org> wrote:
> 
> > On 2014-07-17, Daniel Melameth <dan...@melameth.com> wrote:
> >> It should have tried WEP first and, if that failed, WPA.  ifconfig in
> >> -current can now discern WEP or WPA so this can readily be improved.
> > 
> > ...as long as you have a wifi nic where "ifconfig scan" works, for example
> > not "Intel Centrino Advanced-N 6205 rev 0x34"...
> > 
> 
> Out of curiosity, what happens?

It prints the status,

iwn0: flags=8847<UP,BROADCAST,DEBUG,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        lladdr 8c:70:5a:62:b7:f8
        priority: 4
        groups: wlan egress
        media: IEEE802.11 autoselect (DS1 mode 11g)
        status: active
        ieee80211: nwid TP-LINK_8F014A chan 6 bssid f8:1a:67:8f:01:4a 189dB

then there's a 30 second pause during which the led flashes, then ifconfig exits
without further output. Then I have to ifconfig iwn0 down, ifconfig iwn0 up,
and start dhclient again which has exited due to the interface state change

If I have previously set ifconfig iwn0 debug, when the scan is started I see
some beacon and probe_resp initially, then a bunch of "received beacon" (10 a
second or so) which continues after ifconfig exits until I down the interface.

dmesg below, fwiw (this is an x220). (I also need "down+up" if I use the
rf kill switch on my laptop).

Jul 22 08:40:13 bamboo /bsd: iwn0: received beacon from f8:1a:67:8f:01:4a rssi 
-67 mode 11g
Jul 22 08:40:13 bamboo /bsd: iwn0: received probe_resp from 00:27:22:8e:72:3e 
rssi -46 mode 11g
Jul 22 08:40:13 bamboo /bsd: iwn0: received probe_resp from f8:1a:67:8f:01:4a 
rssi -68 mode 11g
Jul 22 08:40:13 bamboo /bsd: iwn0: received beacon from f8:1a:67:8f:01:4a rssi 
-68 mode 11g
Jul 22 08:40:13 bamboo /bsd: iwn0: received probe_resp from f8:1a:67:8f:01:4a 
rssi -68 mode 11g
Jul 22 08:40:13 bamboo /bsd: iwn0: received probe_resp from f8:1a:67:8f:01:4a 
rssi -69 mode 11g
Jul 22 08:40:13 bamboo /bsd: iwn0: received probe_resp from f8:1a:67:8f:01:4a 
rssi -69 mode 11g
Jul 22 08:40:13 bamboo /bsd: iwn0: received probe_resp from f8:1a:67:8f:01:4a 
rssi -68 mode 11g
Jul 22 08:40:13 bamboo /bsd: iwn0: received probe_resp from f8:1a:67:8f:01:4a 
rssi -68 mode 11g
Jul 22 08:40:13 bamboo /bsd: iwn0: received beacon from 00:27:22:8e:72:3e rssi 
-48 mode 11g
Jul 22 08:40:13 bamboo /bsd: iwn0: received beacon from f8:1a:67:8f:01:4a rssi 
-68 mode 11g
Jul 22 08:40:13 bamboo /bsd: iwn0: received beacon from f8:1a:67:8f:01:4a rssi 
-67 mode 11g
Jul 22 08:40:13 bamboo last message repeated 2 times
Jul 22 08:40:13 bamboo /bsd: iwn0: received beacon from f8:1a:67:8f:01:4a rssi 
-68 mode 11g
<snip>
Jul 22 08:40:49 bamboo /bsd: iwn0: received beacon from f8:1a:67:8f:01:4a rssi 
-67 mode 11g
Jul 22 08:40:49 bamboo /bsd: iwn0: received beacon from f8:1a:67:8f:01:4a rssi 
-66 mode 11g
Jul 22 08:40:49 bamboo /bsd: iwn0: received beacon from f8:1a:67:8f:01:4a rssi 
-67 mode 11g
<ifconfig down at 08:40:49>
<ifconfig up at 08:41:03 and it reconnects>
Jul 22 08:41:03 bamboo /bsd: iwn0: begin active scan
Jul 22 08:41:03 bamboo /bsd: iwn0: received probe_resp from 00:27:22:8e:72:3e 
rssi -55 mode 11g
Jul 22 08:41:03 bamboo /bsd: iwn0: received probe_resp from 00:27:22:8e:72:3e 
rssi -49 mode 11g
Jul 22 08:41:03 bamboo /bsd: iwn0: received beacon from f8:1a:67:8f:01:4a rssi 
-70 mode 11g
Jul 22 08:41:03 bamboo /bsd: iwn0: received probe_resp from f8:1a:67:8f:01:4a 
rssi -67 mode 11g
Jul 22 08:41:03 bamboo /bsd: iwn0: received probe_resp from f8:1a:67:8f:01:4a 
rssi -67 mode 11g
Jul 22 08:41:03 bamboo /bsd: iwn0: received beacon from 00:27:22:8e:72:3e rssi 
-49 mode 11g
Jul 22 08:41:03 bamboo /bsd: iwn0: received probe_resp from f8:1a:67:8f:01:4a 
rssi -67 mode 11g
Jul 22 08:41:03 bamboo /bsd: iwn0: received probe_resp from f8:1a:67:8f:01:4a 
rssi -68 mode 11g
Jul 22 08:41:03 bamboo /bsd: iwn0: received probe_resp from f8:1a:67:8f:01:4a 
rssi -69 mode 11g
Jul 22 08:41:03 bamboo /bsd: iwn0: received probe_resp from f8:1a:67:8f:01:4a 
rssi -66 mode 11g
Jul 22 08:41:03 bamboo /bsd: iwn0: received beacon from f8:1a:67:8f:01:4a rssi 
-73 mode 11g
Jul 22 08:41:06 bamboo /bsd: iwn0: end active scan
Jul 22 08:41:06 bamboo /bsd: iwn0: sending auth to f8:1a:67:8f:01:4a on channel 
6 mode 11g
Jul 22 08:41:06 bamboo /bsd: iwn0: sending assoc_req to f8:1a:67:8f:01:4a on 
channel 6 mode 11g
Jul 22 08:41:06 bamboo /bsd: iwn0: received auth from f8:1a:67:8f:01:4a rssi 
-66 mode 11g
Jul 22 08:41:06 bamboo /bsd: iwn0: associated with f8:1a:67:8f:01:4a ssid 
"TP-LINK_8F014A" channel 6 start 1Mb long preamble short slot time
Jul 22 08:41:06 bamboo /bsd: iwn0: received assoc_resp from f8:1a:67:8f:01:4a 
rssi -69 mode 11g

>                                 Does this mean you’re flying blind
> when you parachute in somewhere and want to know what wi-fi networks
> are around?

If I'm going in somewhere new I tend to just use my phone to connect
and don't even bother starting up the laptop unless I particularly need
it (in which case I can copy the network name from the phone unless
it has awkward non-ASCII characters).

> wiconfig attempts to configure the interface with WPA, waits for a bit
> and, if the connection isn’t successful, tries again with WEP. My
> machine doesn'tt connect within the wiconfig's 3 second timeout
> interval, and then things get weird. After the second connection
> attempt (with WEP, using the “nwkey” param), the connect fails again
> (my AP only does WPA). After this, the interface cannot connect
> successfully with WPA until after a reboot.

While I don't dispute that this behaviour is a bug, it doesn't seem
right for the script to be doing this, surely if you know the password
you should also know if wep is needed? It would seem safer generally
to only use the expected protocol.

Do you need a full reboot at this point, or does restarting the interface
(ifconfig down+up) work? Do you get anything interesting (look in
/var/log/messages) if "ifconfig iwn0 debug" is set?

OpenBSD 5.5-current (GENERIC.MP) #11: Thu Jul 10 17:10:45 BST 2014
    st...@bamboo.spacehopper.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 8451125248 (8059MB)
avail mem = 8217387008 (7836MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.6 @ 0xdae9c000 (66 entries)
bios0: vendor LENOVO version "8DET63WW (1.33 )" date 07/19/2012
bios0: LENOVO 4287CTO
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SLIC SSDT SSDT SSDT HPET APIC MCFG ECDT ASF! TCPA SSDT 
SSDT UEFI UEFI UEFI
acpi0: wakeup devices LID_(S3) SLPB(S3) IGBE(S4) EXP4(S4) EXP7(S4) EHC1(S3) 
EHC2(S3) HDEF(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz, 2791.35 MHz
cpu0: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.1.2, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz, 2790.94 MHz
cpu1: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 1, core 0, package 0
cpu2 at mainbus0: apid 2 (application processor)
cpu2: Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz, 2790.94 MHz
cpu2: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC
cpu2: 256KB 64b/line 8-way L2 cache
cpu2: smt 0, core 1, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz, 2790.94 MHz
cpu3: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,AES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC
cpu3: 256KB 64b/line 8-way L2 cache
cpu3: smt 1, core 1, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63
acpiec0 at acpi0
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PEG_)
acpiprt2 at acpi0: bus 2 (EXP1)
acpiprt3 at acpi0: bus 3 (EXP2)
acpiprt4 at acpi0: bus 5 (EXP4)
acpiprt5 at acpi0: bus 13 (EXP5)
acpiprt6 at acpi0: bus 14 (EXP7)
acpicpu0 at acpi0: C3, C1, PSS
acpicpu1 at acpi0: C3, C1, PSS
acpicpu2 at acpi0: C3, C1, PSS
acpicpu3 at acpi0: C3, C1, PSS
acpipwrres0 at acpi0: PUBS, resource for EHC1, EHC2
acpitz0 at acpi0: critical temperature is 99 degC
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
acpibat0 at acpi0: BAT0 model "42T4861" serial 12519 type LION oem "SANYO"
acpibat1 at acpi0: BAT1 not present
acpiac0 at acpi0: AC unit online
acpithinkpad0 at acpi0
acpidock0 at acpi0: GDCK not docked (0)
cpu0: Enhanced SpeedStep 2791 MHz: speeds: 2801, 2800, 2600, 2400, 2200, 2000, 
1800, 1600, 1400, 1200, 1000, 800 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 2G Host" rev 0x09
vga1 at pci0 dev 2 function 0 "Intel HD Graphics 3000" rev 0x09
intagp at vga1 not configured
inteldrm0 at vga1
drm0 at inteldrm0
drm: Memory usable by graphics device = 2048M
inteldrm0: 1366x768
wsdisplay0 at vga1 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
"Intel 6 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
em0 at pci0 dev 25 function 0 "Intel 82579LM" rev 0x04: msi, address 
f0:de:f1:f9:a7:52
ehci0 at pci0 dev 26 function 0 "Intel 6 Series USB" rev 0x04: apic 2 int 16
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
azalia0 at pci0 dev 27 function 0 "Intel 6 Series HD Audio" rev 0x04: msi
azalia0: codecs: Conexant/0x506e, Intel/0x2805, using Conexant/0x506e
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 6 Series PCIE" rev 0xb4: msi
pci1 at ppb0 bus 2
ppb1 at pci0 dev 28 function 1 "Intel 6 Series PCIE" rev 0xb4: msi
pci2 at ppb1 bus 3
iwn0 at pci2 dev 0 function 0 "Intel Centrino Advanced-N 6205" rev 0x34: msi, 
MIMO 2T2R, MoW, address 8c:70:5a:62:b7:f8
ppb2 at pci0 dev 28 function 3 "Intel 6 Series PCIE" rev 0xb4: msi
pci3 at ppb2 bus 5
ppb3 at pci0 dev 28 function 4 "Intel 6 Series PCIE" rev 0xb4: msi
pci4 at ppb3 bus 13
sdhc0 at pci4 dev 0 function 0 "Ricoh 5U823 SD/MMC" rev 0x04: apic 2 int 16
sdmmc0 at sdhc0
ppb4 at pci0 dev 28 function 6 "Intel 6 Series PCIE" rev 0xb4: msi
pci5 at ppb4 bus 14
"NEC xHCI" rev 0x04 at pci5 dev 0 function 0 not configured
ehci1 at pci0 dev 29 function 0 "Intel 6 Series USB" rev 0x04: apic 2 int 23
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1
pcib0 at pci0 dev 31 function 0 "Intel QM67 LPC" rev 0x04
ahci0 at pci0 dev 31 function 2 "Intel 6 Series AHCI" rev 0x04: msi, AHCI 1.3
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, HITACHI HTS72323, EC2Z> SCSI3 0/direct 
fixed naa.5000cca6d4d8a0f2
sd0: 305245MB, 512 bytes/sector, 625142448 sectors
sd1 at scsibus1 targ 2 lun 0: <ATA, OCZ-NOCTI, 2.25> SCSI3 0/direct fixed 
naa.5e83a97e555f7072
sd1: 57241MB, 512 bytes/sector, 117231408 sectors, thin
ichiic0 at pci0 dev 31 function 3 "Intel 6 Series SMBus" rev 0x04: apic 2 int 18
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-10600 SO-DIMM
spdmem1 at iic0 addr 0x51: 4GB DDR3 SDRAM PC3-10600 SO-DIMM
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
aps0 at isa0 port 0x1600/31
uhub2 at uhub0 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
uhub3 at uhub1 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd1a (5b1b292fa70c813b.a) swap on sd1b dump on sd1b
iwn0: radio is disabled by hardware switch
iwn0: radio is disabled by hardware switch
iwn0: radio is disabled by hardware switch

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