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with meta nfproto, which generates a bit fewer instructions.
Signed-off-by: Anders K. Pedersen <akp@cohaesio.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
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This adds the 'fib' expression which can be used to
obtain the output interface from the route table based on either
source or destination address of a packet.
This can be used to e.g. add reverse path filtering:
# drop if not coming from the same interface packet
# arrived on
# nft add rule x prerouting fib saddr . iif oif eq 0 drop
# accept only if from eth0
# nft add rule x prerouting fib saddr . iif oif eq "eth0" accept
# accept if from any valid interface
# nft add rule x prerouting fib saddr oif accept
Querying of address type is also supported. This can be used
to e.g. only accept packets to addresses configured in the same
interface:
# fib daddr . iif type local
Its also possible to use mark and verdict map, e.g.:
# nft add rule x prerouting meta mark set 0xdead fib daddr . mark type vmap {
blackhole : drop,
prohibit : drop,
unicast : accept
}
Signed-off-by: Florian Westphal <fw@strlen.de>
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Use new range expression in the kernel to fix wrong bytecode generation.
This patch also adjust tests so we don't hit problems there.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The following selectors display strings using quotes:
* meta iifname
* meta oifname
* meta ibriport
* meta obriport
However, the following do not:
* meta oif
* meta iif
* meta skuid
* meta skgid
* meta iifgroup
* meta oifgroup
* meta rtclassid
* ct label
Given they refer to user-defined values, neither keywords nor internal
built-in known values, let's quote the output of this.
This patch modifies symbolic_constant_print() so we can signal this to
indicate if the string needs to be quoted.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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payload set operations should work at least for byte-sized
quantities >= 2 byte.
Before adding support for odd-sized writes (ecn, dscp, ip6 flowlabel
...) add a bunch of tests to cover current state.
Signed-off-by: Florian Westphal <fw@strlen.de>
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Original patch posted in the mailing list from Patrick, I have refreshed
this so it applies on top of current HEAD.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This value needs to be lshift one bit to be correct.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Don't delete the part after the set, i.e. given
chain input {
type filter hook input priority 0; policy accept;
vlan id { 1, 2, 4, 100, 4095} vlan pcp 1-3
}
don't remove the vlan pcp 1-3 part.
This exposes following bug:
bridge/vlan.t: WARNING: line: 32:
'nft add rule --debug=netlink bridge test-bridge input vlan id { 1, 2, 4, 100, 4095 } vlan pcp 1-3': 'vlan id { 1, 2, 4, 100, 4095 } vlan pcp 1-3' mismatches 'vlan id { 4, 1, 2, 4095, 100} vlan pcp 0-0'
We do not shift the range, so on reverse translation we get a 0-0 output.
The bug will be fixes in a followup commit.
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch make sure we test dccp type.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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old nft list:
mark set unknown unknown & 0xfff [invalid type] map { 3 : 0x00000017, 1 : 0x0000002a}
new:
mark set vlan id map { 3 : 0x00000017, 1 : 0x0000002a}
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
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One normal map lookup, one with an explicit binop.
The latter is supposed to also work with the followup patch applied.
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch enables tests for the new netdev family and its ingress
chain.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The existing test was checking for the ip family three times, fix it.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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I think this unit tests should be self-contained at some level. The
shell/ directory should be used to catch regressions at ruleset level,
ie. these kind of combinations.
Another motivation is that I want that netdev/ingress gets tested
(coming in a follow up patch), and we don't support log there yet, so I
would need to skip this test for that case.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The test files have been adapted to the syntax defined in the previous
commit "tests/py: modify supported test file syntax"
Signed-off-by: Pablo M. Bermudo Garay <pablombg@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Rearrange the directory to obtain a better organization of files and
tests-suites.
We end with a tree like this:
tests
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.--- py
.--- shell
.--- files
This was suggested by Pablo.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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