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trafgen uses libnl only to inject mac80211 frames but
it might be not needed in some embedded or switch environments.
Let's make it possible to disable this feature.
In case the `--rfraw' option is used, the user will get a panic
message.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Make the function name more in line with the scheme we use for other
similar functions: the function prefixed with __ returns a negative
error code, the function without prefix panic()'s on error.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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The libnl3 examples [1] use <netlink/netlink.h> etc. and since
pkg-config returns the paths including the libnl3 path component, we
should specify our include paths relative to these ones, not
/usr/include.
[1] http://www.infradead.org/~tgr/libnl/doc/core.html#_linking_to_this_library
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Fix then case when netsniff-ng fails if there is already an existing
monX device while generating one.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add printing libnl error message like:
nl80211 returned with error (-23): Object type does not match cache
instead of:
nl80211 returned with error -23
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Compiling with "-W -Wall -Wextra" reveals the following warnings in
mac80211.c:
mac80211.c: In function ‘nl80211_init’:
mac80211.c:78:67: warning: unused parameter ‘device’ [-Wunused-parameter]
mac80211.c: In function ‘nl80211_wait_handler’:
mac80211.c:106:48: warning: unused parameter ‘msg’ [-Wunused-parameter]
mac80211.c: In function ‘nl80211_error_handler’:
mac80211.c:115:54: warning: unused parameter ‘nla’ [-Wunused-parameter]
mac80211.c:117:12: warning: unused parameter ‘arg’ [-Wunused-parameter]
mac80211.c: In function ‘nl80211_del_mon_if’:
mac80211.c:181:72: warning: unused parameter ‘device’ [-Wunused-parameter]
Fix them by either marking them as unused (where we need to conform to
library APIs or remove them alltogether (for our own APIs). For the
function leave_rfmon_mac80211() the according users (netsniff-ng and
trafgen) are also changed.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Introduce non-typechecking versions of min_t() and max_t() and use them
where a cast would be needed.
The macros were taken from the Linux Kernel, release under GPL v2.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Finally eliminate xutils.{c,h} and move the rest to epoll2.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Move those functions out so that they can be more easily maintained
in its separate file.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Break out all string handling functions and lockme stuff in order
to further eliminate the big code blob in xutils, so that it can
be easier maintained.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Jon reported that the setup via netlink of a raw 802.11 mon
device fails with:
root~/gencfg# trafgen --in beacon.cfg --rfraw --out wlan0
Waiting for netlink ack failed!
Let us only wait for it, if really needed.
Reported-by: Jon Schipp <jonschipp@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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We decided to get rid of the old Git history and start a new one for
several reasons:
*) Allow / enforce only high-quality commits (which was not the case
for many commits in the history), have a policy that is more close
to the one from the Linux kernel. With high quality commits, we
mean code that is logically split into commits and commit messages
that are signed-off and have a proper subject and message body.
We do not allow automatic Github merges anymore, since they are
total bullshit. However, we will either cherry-pick your patches
or pull them manually.
*) The old archive was about ~27MB for no particular good reason.
This basically derived from the bad decision that also some PDF
files where stored there. From this moment onwards, no binary
objects are allowed to be stored in this repository anymore.
The old archive is not wiped away from the Internet. You will still
be able to find it, e.g. on git.cryptoism.org etc.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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