[pkg-wpa-devel] Bug#559040: SIOCSIFFLAGS: Unknown error 132 for interface with rfkill enabled

[Joachim Breitner]

Package: wpasupplicant
Version: 0.6.9-3
Severity: normal

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Hi,

since a short while (maybe kernel 2.6.31, not sure), wpa_supplicant (in
roamding mode) does not start when the rfkill switch for my wireless
interface is enabled:

$ /sbin/wpa_supplicant -s -B -P /var/run/wpa_supplicant.wlan0.pid -i wlan0 -W -D wext -c /etc/wpa_supplicant/wpa_supplicant.conf
SIOCSIFFLAGS: Unknown error 132

strace output:

munmap(0x7f145716f000, 4096)            = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4
socket(PF_NETLINK, SOCK_RAW, 0)         = 5
bind(5, {sa_family=AF_NETLINK, pid=0, groups=00000001}, 12) = 0
ioctl(4, SIOCGIFFLAGS, {ifr_name="wlan0", ifr_flags=IFF_BROADCAST|IFF_MULTICAST}) = 0
ioctl(4, SIOCSIFFLAGS, {ifr_name="wlan0", ???}) = -1 ERFKILL (Unknown error 132)
dup(2)                                  = 6
fcntl(6, F_GETFL)                       = 0x8002 (flags O_RDWR|O_LARGEFILE)
fstat(6, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 3), ...}) = 0

Judging from the strace output, the kernel has a new error condition for
rkill-disabled interfaces that wpa_supplicant does not handle.

This bug causes wpa_supplicant to exit and it is available any more when
the killswitch is disabled. I have to manually run 
$ ifdown --force wlan0; ifup wlan0
to enable it again.

Greetings,
Joachim

- -- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.31-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages wpasupplicant depends on:
ii  adduser                       3.111      add and remove users and groups
ii  libc6                         2.10.2-2   GNU C Library: Shared libraries
ii  libdbus-1-3                   1.2.16-2   simple interprocess messaging syst
ii  libnl1                        1.1-5      library for dealing with netlink s
ii  libpcsclite1                  1.5.5-1    Middleware to access a smart card 
ii  libreadline5                  5.2-7      GNU readline and history libraries
ii  libssl0.9.8                   0.9.8k-6   SSL shared libraries
ii  lsb-base                      3.2-23     Linux Standard Base 3.2 init scrip

wpasupplicant recommends no packages.

Versions of packages wpasupplicant suggests:
pn  libengine-pkcs11-openssl      <none>     (no description available)
pn  wpagui                        <none>     (no description available)

- -- no debconf information

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