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any/ct.t: ERROR: line 94: src/nft add rule --debug=netlink ip6
test-ip6 output meta nfproto ipv4 ct original saddr 1.2.3.4: This rule should not have failed.
Actually, this failure is "ok; we can't find upper layer protocol
in this case, but even if we'd "fix" this it is still non-sensical,
meta nfproto ipv4, but family is ipv6 --> rule would never match.
First move this to an inet-specific test.
A followup patch will reject meta nfproto for all families except inet.
Reported-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This test checks bug identified and fixed in the commit mentioned below
In a statement if there are multiple src data then it would be
totally ambiguous to decide which value to set.
Before the commit was made it returned 134(BUG), but now it returns 1
i.e, an error message.
Following rules tests ambiguity while setting the value:
$ sudo nft add rule ip test-ip4 output ct mark set {0x11333, 0x11}
<cmdline>:1:41-55: Error: you cannot use a set here, unknown value to use
add rule ip test-ip4 output ct mark set {0x11333, 0x11}
~~~~~~~~~~~~^^^^^^^^^^^^^^^
Test: 986dea8 ("evaluate: avoid reference to multiple src data in
statements which set values")
Signed-off-by: Shyam Saini <mayhs11saini@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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We can delete some of the payload files now as ip/ip6/inet produce
same implicit meta l4proto dep.
Signed-off-by: Florian Westphal <fw@strlen.de>
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After previous commit nft generates meta l4proto for ipv6 dependencies
instead of checking the (first) nexthdr value.
This fixes up all tests cases accordingly except one which fails with
ip6/reject.t: ... 12: 'ip6 nexthdr 6 reject with tcp reset' mismatches 'meta l4proto 6 reject with tcp reset'
This will be fixed by removing the implicit dependency in a followup patch.
Signed-off-by: Florian Westphal <fw@strlen.de>
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... to avoid resetting e.g. the ssh session to the vm that runs
nft-test.py.
Signed-off-by: Florian Westphal <fw@strlen.de>
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Debug output from libnftnl has changed to include 'present' keyword if
NFT_EXTHDR_F_PRESENT flag is set in expression.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This allows to check whether a FIB entry exists for a given packet by
comparing the expression with a boolean keyword like so:
| fib daddr oif exists
The implementation requires introduction of a generic expression flag
EXPR_F_BOOLEAN which allows relational expression to signal it's LHS
that a boolean comparison is being done (indicated by boolean type on
RHS). In contrast to exthdr existence checks, fib expression can't know
this in beforehand because the LHS syntax is absolutely identical to a
non-boolean comparison.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This allows to check for existence of an IPv6 extension or TCP
option header by using the following syntax:
| exthdr frag exists
| tcpopt window exists
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Rework syntax, add tokens so we can extend the grammar more easily.
This has triggered several syntax changes with regards to the original
patch, specifically:
tcp option sack0 left 1
There is no space between sack and the block number anymore, no more
offset field, now they are a single field. Just like we do with rt, rt0
and rt2. This simplifies our grammar and that is good since it makes our
life easier when extending it later on to accomodate new features.
I have also renamed sack_permitted to sack-permitted. I couldn't find
any option using underscore so far, so let's keep it consistent with
what we have.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Manuel Messner <mm@skelett.io>
Signed-off-by: Florian Westphal <fw@strlen.de>
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In the inet, bridge and netdev families, we can add rules like these:
% nft add rule inet t c ip protocol icmp icmp type echo-request
% nft add rule inet t c ip6 nexthdr icmpv6 icmpv6 type echo-request
However, when we print the ruleset:
% nft list ruleset
table inet t {
chain c {
icmpv6 type echo-request
icmp type echo-request
}
}
These rules we obtain can't be added again:
% nft add rule inet t c icmp type echo-request
<cmdline>:1:19-27: Error: conflicting protocols specified: inet-service vs. icmp
add rule inet t c icmp type echo-request
^^^^^^^^^
% nft add rule inet t c icmpv6 type echo-request
<cmdline>:1:19-29: Error: conflicting protocols specified: inet-service vs. icmpv6
add rule inet t c icmpv6 type echo-request
^^^^^^^^^^^
Since I wouldn't expect an IP packet carrying ICMPv6, or IPv6 packet
carrying ICMP, if the link layer is inet, the network layer protocol context
can be safely update to 'ip' or 'ip6'.
Moreover, nft currently generates a 'meta nfproto ipvX' depedency when
using icmp or icmp6 in the inet family, and similar in netdev and bridge
families.
While at it, a bit of code factorization is introduced.
Fixes: https://bugzilla.netfilter.org/show_bug.cgi?id=1073
Signed-off-by: Arturo Borrero Gonzalez <arturo@debian.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Include new consumed field for quota, and check for csum_flags in payload.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This should test the fix in commit 7222680eb328b ("parser_bison: Allow
parens on RHS of relational_expr").
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Florian Westphal <fw@strlen.de>
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Many testcases were masked because of bug #888. This series of patches unmasks
them
Signed-off-by: Anatole Denis <anatole@rezel.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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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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