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When do not detect any shellcode, make sure we return the original
string only.
Reported-by: Jon Schipp <jonschipp@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Also allow for ...
- hex: 0xff, xff
- binary: 0b11110000, b11110000
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Also return if no needle has been found in the shell code haystack.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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After commit f9591eebe40c (trafgen: lexer/parser: fix cpu() selection
and whitespacing), we also need to fixup the help description, so that
users start using the cpu(X-Y) notation instead. Also, reintroduce the
alias csum16 for csumip.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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It looks unintuitive when once needs to write cpu(0:3), so also allow
cpu(0-3). Then it's quite stupid to enforce whitespace after the double
colon before the curley braces open. So make this rather optional here.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Both, the IP and ICMP checksums use the same algorithm from RFC1071.
Thus, it's enough if we give csumip an alias to csumicmp, so that it
can be used in trafgen packet configurations. It's calculated from
the ICMP header + data, with value 0 for this field.
Suggested-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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