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There is no need to explicity use the builtins. According to [1], GCC
will recognize mem{cpy,set} as built-in functions, unless the
corresponding -fno-builtin-* option is specified (which is not the case
for netsniff-ng).
[1] https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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It allows to read pcap file for users who have no permissions to set
process IO prio.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Acked-by: Daniel Borkmann <borkmann@iogearbox.net>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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References:
https://github.com/netsniff-ng/netsniff-ng/commit/453f6eb9d79dd5aa2812ef956b22723f0a493086
https://github.com/netsniff-ng/netsniff-ng/pull/112
Signed-off-by: Christian Wiese <chris@opensde.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Fix the following compiler warnings that occur when building with "-W -Wall":
pcap_sg.c: In function ‘__pcap_sg_inter_iov_hdr_read’:
pcap_sg.c:46:89: warning: unused parameter ‘type’ [-Wunused-parameter]
pcap_sg.c:47:19: warning: unused parameter ‘packet’ [-Wunused-parameter]
pcap_sg.c:47:34: warning: unused parameter ‘len’ [-Wunused-parameter]
pcap_sg.c: In function ‘__pcap_sg_inter_iov_data_read’:
pcap_sg.c:77:78: warning: unused parameter ‘len’ [-Wunused-parameter]
pcap_sg.c: In function ‘pcap_sg_prepare_access’:
pcap_sg.c:163:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
pcap_sg.c: In function ‘pcap_sg_prepare_close’:
pcap_sg.c:184:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
pcap_sg.c:180:39: warning: unused parameter ‘fd’ [-Wunused-parameter]
pcap_sg.c:180:58: warning: unused parameter ‘mode’ [-Wunused-parameter]
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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Rename xio to ioops (io-ops) and boil its include files down to a
minimum.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Break this stuff out, for better maintainability and readability.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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When using netsniff-ng with dropping priviledges, we have to introduce
another pcap helper function that is called once before we drop the
priviledges. In this function we have to invoke the disc I/O scheduler
policy, because it needs priviledges. Otherwise netsniff-ng will fail
with "Failed to set io prio for pid" on startup, since we're not root
anymore.
Reported-by: Doug Burks <doug.burks@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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