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Contrary to iptables, we use the asterisk character '*' as wildcard.
# nft --debug=netlink add rule test test iifname eth\*
ip test test
[ meta load iifname => reg 1 ]
[ cmp eq reg 1 0x00687465 ]
Note that this generates an optimized comparison without bitwise.
In case you want to match a device that contains an asterisk, you have
to escape the asterisk, ie.
# nft add rule test test iifname eth\\*
The wildcard string handling occurs from the evaluation step, where we
convert from:
relational
/ \
/ \
meta value
oifname eth*
to:
relational
/ \
/ \
meta prefix
ofiname
As Patrick suggested, this not actually a wildcard but a prefix since it
only applies to the string when placed at the end.
More comments:
* This relaxes the left->size > right->size from netlink_parse_cmp()
for strings since the optimization that this patch applies may now
result in bogus errors.
* This patch can be later on extended to apply a similar optimization to
payload expressions when:
expr->len % BITS_PER_BYTE == 0
For meta and ct, the kernel checks for the exact length of the attributes
(it expects integer 32 bits) so we can't do it unless we relax that.
* Wildcard strings are not supported from sets and maps yet. Error
reporting is not very good at this stage since expr_evaluate_prefix()
doesn't have enough context (ctx->set is NULL, the set object is
currently created later after evaluating the lhs and rhs of the
relational). I'll be following up on this later.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Pablo reported test failures because the order of returned set entries
is not deterministic.
This sorts set elements before comparision.
Patrick suggested to move ordering into libnftnl (since we could f.e.
also get duplicate entries due to how netlink dumps work), but thats a bit
more work. Hence this quick workaround.
Reported-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
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This patch adds simple tests for concatenation and maps, including more
advanced tests that combine them.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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compare netlink instructions generated by given nft command line
with recorded version.
Example: udp dport 80 accept in ip family should look like
ip test-ip4 input
[ payload load 1b @ network header + 9 => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00005000 ]
[ immediate reg 0 accept ]
This is stored in udp.t.payload.ip
Other suffixes:
.payload.ip6
.payload.inet
.payload ('any')
The test script first looks for 'testname.t.payload.$family', if that
doesn't exist 'testname.t.payload' is used.
This allows for family independent test (e.g. meta), where we don't
expect/have any family specific expressions.
Signed-off-by: Florian Westphal <fw@strlen.de>
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I get failures here since 'man' has different uid vs. what
test suite expects.
Furthermore, this box does not have a 'backup' user.
Switch to root/bin/daemon -- those exist on both debian and fedora.
After this meta.t passes on all my machines.
Signed-off-by: Florian Westphal <fw@strlen.de>
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Fix lots of warnings, mostly related to the listing of ranges in many of the
tests that we have, eg.
any/meta.t: WARNING: line: 30: 'nft add rule ip test-ip4 input meta l4proto 33-45': 'meta l4proto 33-45' mismatches 'meta l4proto 33-45'
any/meta.t: WARNING: line: 31: 'nft add rule ip test-ip4 input meta l4proto != 33-45': 'meta l4proto != 33-45' mismatches 'meta l4proto != 33-45'
any/meta.t: WARNING: line: 99: 'nft add rule ip test-ip4 input meta skuid 3001-3005 accept': 'meta skuid 3001-3005 accept' mismatches 'skuid 3001-3005 accept'
any/meta.t: WARNING: line: 100: 'nft add rule ip test-ip4 input meta skuid != 2001-2005 accept': 'meta skuid != 2001-2005 accept' mismatches 'skuid != 2001-2005 accept'
any/meta.t: WARNING: line: 111: 'nft add rule ip test-ip4 input meta skgid 2001-2005 accept': 'meta skgid 2001-2005 accept' mismatches 'skgid 2001-2005 accept'
any/meta.t: WARNING: line: 112: 'nft add rule ip test-ip4 input meta skgid != 2001-2005 accept': 'meta skgid != 2001-2005 accept' mismatches 'skgid != 2001-2005 accept'
any/meta.t: WARNING: line: 156: 'nft add rule ip test-ip4 input meta cpu 1-3': 'meta cpu 1-3' mismatches 'cpu 1-3'
any/meta.t: WARNING: line: 158: 'nft add rule ip test-ip4 input meta cpu != 1-2': 'meta cpu != 1-2' mismatches 'cpu != 1-2'
any/meta.t: WARNING: line: 187: 'nft add rule ip test-ip4 input meta cgroup 0x100001 - 0x100003': 'meta cgroup 0x100001 - 0x100003' mismatches 'cgroup 1048577-1048579'
...
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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'meta mark set 10' is a valid input, but the expected output is
'mark set 10'.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Closes: http://bugzilla.netfilter.org/show_bug.cgi?id=995
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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So tests log statement for those two families too and remove the
tests/selectors that are ip and ip6 specific, they don't belong here.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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ct mark 0x32-0x45
displays:
ct mark >= 0x00000032 ct mark <= 0x00000045
^^^^^^^^^^
instead of ct mark <= 0x45000000
^^^^^^^^^^
Remove the custom output so this displays a warning. nft should
(at some point) merge the two statements into one single to express
the range from the netlink_delinearize step.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Otherwise parsing with basetypes doesn't work. Now nft displays
an error when the symbolic constant is not correct:
<cmdline>:1:29-31: Error: Could not parse conntrack state
add rule test test ct state xxx accept
^^^
Use .sym_tbl instead and default on the symbol_constant_parse()
function from the ethertype and pkttype, this simplifies the code and
(more importantly) it avoids a breakage after the change in
integer_type_parse().
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The following example:
# nft add rule filter input ct state 8 accept
Segmentation fault
leads to a crash because we have the following datatype relation:
ct_state -> bitmask -> integer
The bitmask, which is an intermediate basetype, has no parse()
function, this leads to a crash in symbolic_constant_parse().
Patrick suggested to walk down the chain until we find a parser
function.
Reported-by: leroy christophe <christophe.leroy@c-s.fr>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This suppresses several superfluous errors:
any/meta.t: ERROR: line 168: nft add rule ip test-ip4 input meta iifgroup {11,33}: This rule should not have failed.
any/meta.t: ERROR: line 178: nft add rule ip test-ip4 input meta oifgroup {11,33}: This rule should not have failed.
ip/masquerade.t: ERROR: line 23: nft add rule ip4 test-ip4 output tcp dport {1,2,3,4,5,6,7,8,101,202,303,1001,2002,3003} masquerade: This rule should not have failed.
ip6/masquerade.t: ERROR: line 23: nft add rule ip6 test-ip6 output tcp dport {1,2,3,4,5,6,7,8,101,202,303,1001,2002,3003} masquerade: This rule should not have failed.
This needs a space before the list of elements in the set, otherwise
bash here misinterprets the set.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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queue options are now expressed as flags, so you have to use
comma separated values.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The new attribute of meta is "cgroup".
Example of use in nft:
# nft add rule ip test output meta cgroup != 0x100001 counter drop
Moreover, this adds tests to the meta.t test file.
The kernel support is addedin the commit:
ce67417 ("netfilter: nft_meta: add cgroup support")
The libnftnl support is add in the commit:
1d4a480 ("expr: meta: Add cgroup support")
More information about the steps to use cgroup:
https://www.kernel.org/doc/Documentation/cgroups/net_cls.txt
More info about cgroup in iptables:
http://git.kernel.org/cgit/linux/kernel/git/pablo/nftables.git/commit/net/netfilter/xt_cgroup.c?id=82a37132f300ea53bdcd812917af5a6329ec80c3
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This adds the new devgroup datatype to get the group name from
/etc/iproute2/group file.
Example of use:
nft add rule ip test input meta iifgroup 0 counter
nft add rule ip test input meta iifgroup default counter
Moreover, It adds tests in meta.t test file.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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There are false errors if you run the automated regression testing
without a wlan0 device in the system.
Delete references to 'wlan0' in test files or replaces 'wlan0' by 'lo'
or 'eth0' in the test files if it is possible.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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"any" folder contains the test files that are executed in ipv4, ipv6,
inet, arp, bridge family of tables.
These test files are executed with nft-tests.py
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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