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64d0220f45
hostapd calls pcap_next(3) to read the next packet off the wlan interface.
pcap_next() returns a pointer to the packet header but does not indicate
success or failure. Unfortunately this results in an infinite loop (100%
CPU) when the wlan device disappears, i.e. when a USB wlan device is
manually removed or a USB error results in the device removal. However
pcap_next_ex(3) does return success or failure. To resolve this we use
pcap_next_ex(), forcing hostapd to exit when the error is encountered.
An error message is printed to syslog or stderr when debugging (-d flag)
is enabled. Unfortunately wpa_printf() only works when debugging is enabled.
PR: 253608
Reported by: Damjan Jovanovic <damjan.jov@gmail.com>,
bz (privately)
(cherry picked from commit
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apr | ||
apr-util | ||
atf | ||
bc | ||
bearssl | ||
blacklist | ||
bmake | ||
bsnmp | ||
byacc | ||
bzip2 | ||
capsicum-test | ||
com_err | ||
cortex-strings | ||
dialog | ||
diff | ||
dma | ||
ee | ||
elftoolchain | ||
expat | ||
file | ||
flex | ||
gdtoa | ||
googletest | ||
hyperv/tools | ||
ipfilter | ||
jemalloc | ||
kyua | ||
ldns | ||
ldns-host | ||
less | ||
lib9p | ||
libarchive | ||
libbegemot | ||
libc-pwcache | ||
libc-vis | ||
libcbor | ||
libcxxrt | ||
libdivsufsort | ||
libedit | ||
libevent | ||
libexecinfo | ||
libfido2 | ||
libpcap | ||
libucl | ||
libxo | ||
llvm-project | ||
lua | ||
lutok | ||
mandoc | ||
mknod | ||
mtree | ||
ncurses | ||
netbsd-tests | ||
netcat | ||
ngatm | ||
ntp | ||
nvi | ||
ofed | ||
one-true-awk | ||
openbsm | ||
opencsd/decoder | ||
openpam | ||
openresolv | ||
opie | ||
pam_modules/pam_passwdqc | ||
pf | ||
pjdfstest | ||
pnglite | ||
pnpinfo | ||
processor-trace | ||
sendmail | ||
serf | ||
smbfs | ||
sqlite3 | ||
subversion | ||
tcp_wrappers | ||
tcpdump | ||
tcsh | ||
telnet | ||
terminus | ||
tnftp | ||
traceroute | ||
tzcode | ||
tzdata | ||
unbound | ||
unvis | ||
vis | ||
wpa | ||
xz |