[FS#3643] iwinfo returns bad data
OpenWrt Bugs
openwrt-bugs at lists.openwrt.org
Mon Mar 1 21:00:09 GMT 2021
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FS#3643 - iwinfo returns bad data
User who did this - George Robinson (Goerge255)
----------
root at OpenWrt:~# strace iwconfig
execve("/usr/sbin/iwconfig", ["iwconfig"], 0x7fc46110 /* 12 vars */) = 0
set_thread_area(0x77f42efc) = 0
set_tid_address(0x77f3a008) = 2319
open("/etc/ld-musl-mipsel-sf.path", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/lib/libgcc_s.so.1", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
fstat64(3, {st_mode=S_IFREG|0644, st_size=78079, ...}) = 0
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\320'\0\0004\0\0\0"..., 936) = 936
mmap2(NULL, 147456, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x77e6d000
mmap2(0x77e8f000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x12000) = 0x77e8f000
close(3) = 0
mprotect(0x77e8f000, 4096, PROT_READ) = 0
mprotect(0x418000, 4096, PROT_READ) = 0
socket(AF_INET, SOCK_DGRAM, IPPROTO_IP) = 3
open("/proc/net/dev", O_RDONLY|O_LARGEFILE) = 4
read(4, "Inter-| Receive "..., 1024) = 1024
ioctl(3, SIOCGIWNAME, 0x7fb6b0fc) = 0
ioctl(3, SIOCGIWNWID, 0x7fb6b0fc) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIWFREQ, 0x7fb6b0fc) = -1 EINVAL (Invalid argument)
ioctl(3, SIOCGIWENCODE, 0x7fb6b0fc) = 0
ioctl(3, SIOCGIWESSID, 0x7fb6b0fc) = 0
ioctl(3, SIOCGIWMODE, 0x7fb6b0fc) = 0
ioctl(3, SIOCGIWRANGE, 0x7fb6ac64) = 0
ioctl(3, SIOCGIWAP, 0x7fb6b170) = 0
ioctl(3, SIOCGIWRATE, 0x7fb6b170) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIWPOWER, 0x7fb6b170) = 0
ioctl(3, SIOCGIWSTATS, 0x7fb6b01c) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIWTXPOW, 0x7fb6b170) = 0
ioctl(3, SIOCGIWRTS, 0x7fb6b170) = 0
ioctl(3, SIOCGIWFRAG, 0x7fb6b170) = 0
ioctl(1, TIOCGWINSZ, 0x7fb6ac88) = 0
writev(1, [{iov_base="wlan0 IEEE 802.11 ESSID:off"..., iov_len=38}, {iov_base="\n", iov_len=1}], 2wlan0 IEEE 802.11 ESSID:off/any
) = 39
writev(1, [{iov_base=" Mode:Managed Access P"..., iov_len=73}, {iov_base="\n", iov_len=1}], 2 Mode:Managed Access Point: Not-Associated Tx-Power=23 dBm
) = 74
writev(1, [{iov_base=" RTS thr:off Fragment"..., iov_len=40}, {iov_base="\n", iov_len=1}], 2 RTS thr:off Fragment thr:off
) = 41
writev(1, [{iov_base=" Encryption key:off", iov_len=28}, {iov_base="\n", iov_len=1}], 2 Encryption key:off
) = 29
writev(1, [{iov_base=" Power Management:off", iov_len=30}, {iov_base="\n", iov_len=1}], 2 Power Management:off
) = 31
writev(1, [{iov_base=" ", iov_len=10}, {iov_base="\n", iov_len=1}], 2
) = 11
ioctl(3, SIOCGIWNAME, 0x7fb6b0fc) = 0
ioctl(3, SIOCGIWNWID, 0x7fb6b0fc) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIWFREQ, 0x7fb6b0fc) = -1 EINVAL (Invalid argument)
ioctl(3, SIOCGIWENCODE, 0x7fb6b0fc) = 0
ioctl(3, SIOCGIWESSID, 0x7fb6b0fc) = 0
ioctl(3, SIOCGIWMODE, 0x7fb6b0fc) = 0
ioctl(3, SIOCGIWRANGE, 0x7fb6ac64) = 0
ioctl(3, SIOCGIWAP, 0x7fb6b170) = 0
ioctl(3, SIOCGIWRATE, 0x7fb6b170) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIWPOWER, 0x7fb6b170) = 0
ioctl(3, SIOCGIWSTATS, 0x7fb6b01c) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIWTXPOW, 0x7fb6b170) = 0
ioctl(3, SIOCGIWRTS, 0x7fb6b170) = 0
ioctl(3, SIOCGIWFRAG, 0x7fb6b170) = 0
writev(1, [{iov_base="wlan1 IEEE 802.11 ESSID:off"..., iov_len=38}, {iov_base="\n", iov_len=1}], 2wlan1 IEEE 802.11 ESSID:off/any
) = 39
writev(1, [{iov_base=" Mode:Managed Access P"..., iov_len=72}, {iov_base="\n", iov_len=1}], 2 Mode:Managed Access Point: Not-Associated Tx-Power=3 dBm
) = 73
writev(1, [{iov_base=" RTS thr:off Fragment"..., iov_len=40}, {iov_base="\n", iov_len=1}], 2 RTS thr:off Fragment thr:off
) = 41
writev(1, [{iov_base=" Encryption key:off", iov_len=28}, {iov_base="\n", iov_len=1}], 2 Encryption key:off
) = 29
writev(1, [{iov_base=" Power Management:off", iov_len=30}, {iov_base="\n", iov_len=1}], 2 Power Management:off
) = 31
writev(1, [{iov_base=" ", iov_len=10}, {iov_base="\n", iov_len=1}], 2
) = 11
ioctl(3, SIOCGIWNAME, 0x7fb6b0fc) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIFFLAGS, {ifr_name="br-lan", ifr_flags=IFF_UP|IFF_BROADCAST|IFF_RUNNING|IFF_MULTICAST}) = 0
writev(2, [{iov_base="br-lan no wireless extensions"..., iov_len=35}, {iov_base=NULL, iov_len=0}], 2br-lan no wireless extensions.
) = 35
ioctl(3, SIOCGIWNAME, 0x7fb6b0fc) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIFFLAGS, {ifr_name="eth0", ifr_flags=IFF_UP|IFF_BROADCAST|IFF_RUNNING|IFF_MULTICAST}) = 0
writev(2, [{iov_base="eth0 no wireless extensions"..., iov_len=35}, {iov_base=NULL, iov_len=0}], 2eth0 no wireless extensions.
) = 35
ioctl(3, SIOCGIWNAME, 0x7fb6b0fc) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIFFLAGS, {ifr_name="lo", ifr_flags=IFF_UP|IFF_LOOPBACK|IFF_RUNNING}) = 0
writev(2, [{iov_base="lo no wireless extensions"..., iov_len=35}, {iov_base=NULL, iov_len=0}], 2lo no wireless extensions.
) = 35
ioctl(3, SIOCGIWNAME, 0x7fb6b0fc) = 0
ioctl(3, SIOCGIWNWID, 0x7fb6b0fc) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIWFREQ, 0x7fb6b0fc) = -1 EINVAL (Invalid argument)
ioctl(3, SIOCGIWENCODE, 0x7fb6b0fc) = 0
ioctl(3, SIOCGIWESSID, 0x7fb6b0fc) = 0
ioctl(3, SIOCGIWMODE, 0x7fb6b0fc) = 0
ioctl(3, SIOCGIWRANGE, 0x7fb6ac64) = 0
ioctl(3, SIOCGIWAP, 0x7fb6b170) = 0
ioctl(3, SIOCGIWRATE, 0x7fb6b170) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIWPOWER, 0x7fb6b170) = 0
ioctl(3, SIOCGIWSTATS, 0x7fb6b01c) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIWTXPOW, 0x7fb6b170) = 0
ioctl(3, SIOCGIWRTS, 0x7fb6b170) = 0
ioctl(3, SIOCGIWFRAG, 0x7fb6b170) = 0
writev(1, [{iov_base="wlan2 IEEE 802.11 ESSID:off"..., iov_len=38}, {iov_base="\n", iov_len=1}], 2wlan2 IEEE 802.11 ESSID:off/any
) = 39
writev(1, [{iov_base=" Mode:Managed Access P"..., iov_len=73}, {iov_base="\n", iov_len=1}], 2 Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
) = 74
writev(1, [{iov_base=" RTS thr:off Fragment"..., iov_len=40}, {iov_base="\n", iov_len=1}], 2 RTS thr:off Fragment thr:off
) = 41
writev(1, [{iov_base=" Encryption key:off", iov_len=28}, {iov_base="\n", iov_len=1}], 2 Encryption key:off
) = 29
writev(1, [{iov_base=" Power Management:off", iov_len=30}, {iov_base="\n", iov_len=1}], 2 Power Management:off
) = 31
writev(1, [{iov_base=" ", iov_len=10}, {iov_base="\n", iov_len=1}], 2
) = 11
read(4, "0 0 0 0 0 "..., 1024) = 37
ioctl(3, SIOCGIWNAME, 0x7fb6b0fc) = -1 EOPNOTSUPP (Not supported)
ioctl(3, SIOCGIFFLAGS, {ifr_name="eth0.1", ifr_flags=IFF_UP|IFF_BROADCAST|IFF_RUNNING|IFF_MULTICAST}) = 0
writev(2, [{iov_base="eth0.1 no wireless extensions"..., iov_len=35}, {iov_base=NULL, iov_len=0}], 2eth0.1 no wireless extensions.
) = 35
read(4, "", 1024) = 0
close(4) = 0
close(3) = 0
exit_group(0) = ?
+++ exited with 0 +++
root at OpenWrt:~# iwinfo
wlan0 ESSID: unknown
Access Point: 08:02:8E:E2:7C:77
Mode: Client Channel: unknown (unknown)
Tx-Power: 23 dBm Link Quality: unknown/70
Signal: unknown Noise: unknown
Bit Rate: unknown
Encryption: unknown
Type: nl80211 HW Mode(s): 802.11bgn
Hardware: 14C3:7628 14C3:0004 [MediaTek MT76x8]
TX power offset: none
Frequency offset: none
Supports VAPs: yes PHY name: phy0
wlan1 ESSID: unknown
Access Point: 08:02:8E:E2:7C:79
Mode: Client Channel: unknown (unknown)
Tx-Power: 3 dBm Link Quality: unknown/70
Signal: unknown Noise: unknown
Bit Rate: unknown
Encryption: unknown
Type: nl80211 HW Mode(s): 802.11nac
Hardware: 14C3:7662 14C3:7662 [MediaTek MT76x2E]
TX power offset: none
Frequency offset: none
Supports VAPs: yes PHY name: phy1
wlan2 ESSID: unknown
Access Point: 00:C0:CA:98:6B:65
Mode: Client Channel: unknown (unknown)
Tx-Power: 20 dBm Link Quality: unknown/70
Signal: unknown Noise: unknown
Bit Rate: unknown
Encryption: unknown
Type: nl80211 HW Mode(s): 802.11bgn
Hardware: 14C3:7628 14C3:0004 [MediaTek MT76x8]
TX power offset: none
Frequency offset: none
Supports VAPs: yes PHY name: phy2
root at OpenWrt:~#
----------
More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3643#comment9439
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