>Synopsis: /etc/netstart fails to parse complex wpa2 passphrases
>Category: system
>Environment:
System : OpenBSD 7.4
Details : OpenBSD 7.4 (GENERIC.MP) #2273: Tue Oct 10 09:45:06
MDT 2023
dera...@arm64.openbsd.org:/usr/src/sys/arch/
arm64/compile/GENERIC.MP
Architecture: OpenBSD.arm64
Machine : arm64
>Description:
I have configured my Raspberry Pi to use its wlan interface
using my access point information. The thing is... I have a
63 characters long passphrase. A complex one. It even uses
characters that can trouble a shell : "!", "#", "\" and "&".
After having edited /etc/hostname.bwfm0 with correct information,
I used /etc/netstart to configure bwfm0. Without any success. On
another AP I have nearby that uses a much more simple passphrase,
the raspi could connect to it. Note that, in order to avoid
netstart insulting me, I had to enclose the passphrase with quotes
since it was obviously taken as-is in order to create the ifconfig
command line.
I could however connect to my AP directly using the command line.
ifconfig bwfm0 join <myAP> wpakey '<my-long-and-complex-passphrase>'
Starting netstart with the -n option showed that it was attempting
to execute ifconfig with the same arguments... But the interface
never got an IP address.
Using my other AP to configure a similar passphrase yielded the
same results.
>How-To-Repeat:
You have to have an AP with the wpa2 passphrase specified below.
$ cat /etc/hostname.bwfm0
join mywifi wpakey 'B22c-2&0%snOy7!l+6vmpH&QMY#QT2BN1RPdeImAb0/
WkWc%-\&,HzGpJ7rbN5t'
inet autoconf
(do not worry : this passphrase has been changed since).
$ doas sh /etc/netstart bwfm0
>Fix:
I had to edit /etc/rc to add my ifconfig line just after the call
to /etc/netstart. I hope this is only temporary :)
dmesg:
OpenBSD 7.4 (GENERIC.MP) #2273: Tue Oct 10 09:45:06 MDT 2023
dera...@arm64.openbsd.org:/usr/src/sys/arch/arm64/compile/GENERIC.MP
real mem = 4124950528 (3933MB)
avail mem = 3961569280 (3778MB)
random: good seed from bootblocks
mainbus0 at root: Raspberry Pi 4 Model B Rev 1.1
efi0 at mainbus0: UEFI 2.8
efi0: Das U-Boot rev 0x20211000
smbios0 at efi0: SMBIOS 3.0
smbios0: vendor U-Boot version "2021.10" date 10/01/2021
smbios0: Unknown Unknown Product
cpu0 at mainbus0 mpidr 0: ARM Cortex-A72 r0p3
cpu0: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1 D-cache
cpu0: 1024KB 64b/line 16-way L2 cache
cpu0: CRC32,ASID16
cpu1 at mainbus0 mpidr 1: ARM Cortex-A72 r0p3
cpu1: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1 D-cache
cpu1: 1024KB 64b/line 16-way L2 cache
cpu1: CRC32,ASID16
cpu2 at mainbus0 mpidr 2: ARM Cortex-A72 r0p3
cpu2: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1 D-cache
cpu2: 1024KB 64b/line 16-way L2 cache
cpu2: CRC32,ASID16
cpu3 at mainbus0 mpidr 3: ARM Cortex-A72 r0p3
cpu3: 48KB 64b/line 3-way L1 PIPT I-cache, 32KB 64b/line 2-way L1 D-cache
cpu3: 1024KB 64b/line 16-way L2 cache
cpu3: CRC32,ASID16
"linux,cma" at mainbus0 not configured
"nvram" at mainbus0 not configured
apm0 at mainbus0
simplefb0 at mainbus0: 1680x1050, 32bpp
wsdisplay0 at simplefb0 mux 1
wsdisplay0: screen 0-5 added (std, vt100 emulation)
"system" at mainbus0 not configured
"axi" at mainbus0 not configured
simplebus0 at mainbus0: "soc"
bcmclock0 at simplebus0
bcmmbox0 at simplebus0
bcmgpio0 at simplebus0
bcmaux0 at simplebus0
ampintc0 at simplebus0 nirq 256, ncpu 4 ipi: 0, 1, 2: "interrupt-
controller"
bcmtmon0 at simplebus0
bcmdmac0 at simplebus0: DMA0 DMA2 DMA4 DMA5 DMA6 DMA7 DMA8 DMA9 DMA10
"timer" at simplebus0 not configured
pluart0 at simplebus0: rev 2, 16 byte fifo
pluart0: console
"local_intc" at simplebus0 not configured
bcmdog0 at simplebus0
bcmirng0 at simplebus0
"firmware" at simplebus0 not configured
"power" at simplebus0 not configured
"mailbox" at simplebus0 not configured
sdhc0 at simplebus0
sdhc0: SDHC 3.00, 250 MHz base clock
sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed
"gpiomem" at simplebus0 not configured
"fb" at simplebus0 not configured
"vcsm" at simplebus0 not configured
"clocks" at mainbus0 not configured
"phy" at mainbus0 not configured
"clk-27M" at mainbus0 not configured
"clk-108M" at mainbus0 not configured
simplebus1 at mainbus0: "emmc2bus"
sdhc1 at simplebus1
sdhc1: SDHC 3.00, 100 MHz base clock
sdmmc1 at sdhc1: 8-bit, sd high-speed, mmc high-speed, ddr52, dma
"arm-pmu" at mainbus0 not configured
agtimer0 at mainbus0: 54000 kHz
simplebus2 at mainbus0: "scb"
bcmpcie0 at simplebus2
pci0 at bcmpcie0
ppb0 at pci0 dev 0 function 0 "Broadcom BCM2711" rev 0x10
pci1 at ppb0 bus 1
xhci0 at pci1 dev 0 function 0 "VIA VL805 xHCI" rev 0x01: intx, xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "VIA xHCI root hub" rev
3.00/1.00 addr 1
bse0 at simplebus2: address dc:a6:32:5d:97:58
brgphy0 at bse0 phy 1: BCM54210E 10/100/1000baseT PHY, rev. 2
"dma" at simplebus2 not configured
"hevc-decoder" at simplebus2 not configured
"rpivid-local-intc" at simplebus2 not configured
"h264-decoder" at simplebus2 not configured
"vp9-decoder" at simplebus2 not configured
gpioleds0 at mainbus0: "led0", "led1"
"sd_io_1v8_reg" at mainbus0 not configured
"sd_vcc_reg" at mainbus0 not configured
"fixedregulator_3v3" at mainbus0 not configured
"fixedregulator_5v0" at mainbus0 not configured
simplebus3 at mainbus0: "v3dbus"
"bootloader" at mainbus0 not configured
scsibus0 at sdmmc1: 2 targets, initiator 0
sd0 at scsibus0 targ 1 lun 0: <SD/MMC, EC2QT, 0030> removable
sd0: 61056MB, 512 bytes/sector, 125042688 sectors
uhub1 at uhub0 port 1 configuration 1 interface 0 "VIA Labs USB2.0 Hub"
rev 2.10/4.21 addr 2
bwfm0 at sdmmc0 function 1
manufacturer 0x02d0, product 0xa9a6 at sdmmc0 function 2 not configured
manufacturer 0x02d0, product 0xa9a6 at sdmmc0 function 3 not configured
uhub2 at uhub1 port 3 configuration 1 interface 0 "Genesys Logic USB2.0
Hub" rev 2.00/32.98 addr 3
uhidev0 at uhub2 port 1 configuration 1 interface 0 " RPI Wired Keyboard
2" rev 2.00/1.40 addr 4
uhidev0: iclass 3/1
ukbd0 at uhidev0: 8 variable keys, 6 key codes
wskbd0 at ukbd0 mux 1
wskbd0: connecting to wsdisplay0
uhidev1 at uhub2 port 1 configuration 1 interface 1 " RPI Wired Keyboard
2" rev 2.00/1.40 addr 4
uhidev1: iclass 3/0
ucc0 at uhidev1: 9 usages, 8 keys, enum
wskbd1 at ucc0 mux 1
wskbd1: connecting to wsdisplay0
uhidev2 at uhub1 port 4 configuration 1 interface 0 "Logitech Trackball"
rev 1.10/2.20 addr 5
uhidev2: iclass 3/1
ums0 at uhidev2: 3 buttons, Z dir
wsmouse0 at ums0 mux 0
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
scsibus2 at softraid0: 256 targets
root on sd0a (c5266df9f1fa29ce.a) swap on sd0b dump on sd0b
WARNING: CHECK AND RESET THE DATE!
gpio0 at bcmgpio0: 58 pins
bwfm0: address dc:a6:32:5d:97:59
usbdevs:
Controller /dev/usb0:
addr 01: 1106:0000 VIA, xHCI root hub
super speed, self powered, config 1, rev 1.00
driver: uhub0
addr 02: 2109:3431 VIA Labs, USB2.0 Hub
high speed, self powered, config 1, rev 4.21
driver: uhub1
addr 03: 05e3:0610 Genesys Logic, USB2.0 Hub
high speed, self powered, config 1, rev 32.98
driver: uhub2
addr 04: 04d9:0006 , RPI Wired Keyboard 2
low speed, power 100 mA, config 1, rev 1.40
driver: uhidev0
driver: uhidev1
addr 05: 046d:c404 Logitech, Trackball
low speed, power 100 mA, config 1, rev 2.20
driver: uhidev2
