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libnftnl has been changed to bring the format of registers in bitwise
dumps in line with those in other types of expression. Update the
expected output of Python test-cases.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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If a prefix expression's length is on a byte-boundary, it is sufficient
to just reduce the length passed to "cmp" expression. No need for
explicit bitwise modification of data on LHS. The relevant code is
already there, used for string prefix matches. There is one exception
though, namely zero-length prefixes: Kernel doesn't accept zero-length
"cmp" expressions, so keep them in the old code-path for now.
This patch depends upon the previous one to correctly parse odd-sized
payload matches but has to extend support for non-payload LHS as well.
In practice, this is needed for "ct" expressions as they allow matching
against IP address prefixes, too.
Signed-off-by: Phil Sutter <phil@nwl.cc>
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On families other than 'ip', the rule
ip protocol icmp
needs a dependency on the ip protocol so we do not treat e.g. an ipv6
header as ip.
Bridge currently uses eth_hdr.type for this, but that will cause the
rule above to not match in case the ip packet is within a VLAN tagged
frame -- ether.type will appear as ETH_P_8021Q.
Due to vlan tag stripping, skb->protocol will be ETH_P_IP -- so prefer
to use this instead.
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This reverts commit d03bcb669c0c645190df9bd166f53380bcac7862.
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future change will rewrite all single-element anon sets to a cmp op.
Retain a few test cases to later check that the rewrite is correct, but
remove all others.
Signed-off-by: Florian Westphal <fw@strlen.de>
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This reverts commit 55715486efba424e97361c81d8d47e854f45a5a6.
This breaks tests/py.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Upcoming dscp codepoint for background traffic of low precendence
such as bulk data transfers with low priority in time, non time-critical
backups, larger software updates, web search engines while gathering
information from web servers and so on.
Signed-off-by: Loganaden Velvindron <logan@cyberstorm.mu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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nft currently doesn't do payload merging anymore in some cases,
so fix up the expected output.
Fixes: ce2651222911 ("payload: refine payload expr merging")
Signed-off-by: Florian Westphal <fw@strlen.de>
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This adds a simple nftables Python class in py/nftables.py which gives
access to libnftables API via ctypes module.
nft-test.py is extended to make use of the above class instead of
calling nft binary. Since command line formatting had to be touched
anyway, this patch also streamlines things a bit by introducing
__str__ methods to classes Table and Chain and making extensive use of
format strings instead of onerously adding all string parts together.
Since the called commands don't see a shell anymore, all shell meta
character escaping done in testcases is removed.
The visible effects of this change are:
* Four new warnings in ip/flowtable.t due to changing objref IDs (will
be addressed later in a patch to libnftnl).
* Reported command line in warning and error messages changed slightly
for obvious reasons.
* Reduction of a full test run's runtime by a factor of four. Status
diff after running with 'time':
< 83 test files, 77 files passed, 1724 unit tests, 0 error, 33 warning
< 87.23user 696.13system 15:11.82elapsed 85%CPU (0avgtext+0avgdata 9604maxresident)k
< 8inputs+36800outputs (0major+35171235minor)pagefaults 0swaps
> 83 test files, 77 files passed, 1724 unit tests, 4 error, 33 warning
> 6.80user 30.18system 3:45.86elapsed 16%CPU (0avgtext+0avgdata 14064maxresident)k
> 0inputs+35808outputs (0major+2874minor)pagefaults 0swaps
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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they fail with 'BUG: invalid binary operation 5'.
Signed-off-by: Florian Westphal <fw@strlen.de>
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This does not add any additional warnings, it just increases
coverage to bridge.
Signed-off-by: Florian Westphal <fw@strlen.de>
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