| Commit message (Collapse) | Author | Age | Files | Lines |
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Code wasn't aware of prefix elements in interval sets. With previous
changes in place, they merely need to be accepted in
get_set_interval_find() - value comparison and expression duplication is
identical to ranges.
Extend sets/0034get_element_0 test to cover prefixes as well. While
being at it, also cover concatenated ranges.
Signed-off-by: Phil Sutter <phil@nwl.cc>
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table bridge t {
set s3 {
typeof meta ibrpvid
elements = { 2, 3, 103 }
}
}
# nft --debug=netlink -f test.nft
s3 t 0
s3 t 0
element 00000100 : 0 [end] element 00000200 : 0 [end] element 00000300 : 0 [end]
^^^^^^^^
The integer_type uses BYTEORDER_INVALID byteorder (which is implicitly
handled as BYTEORDER_BIG_ENDIAN).
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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non-overlapping ranges
Insertion of overlapping ranges should return success only if the new
elements are identical to existing ones, or, for concatenated ranges,
if the new element is less specific (in all its fields) than any
existing one.
Note that, in case the range is identical to an existing one, insertion
won't actually be performed, but no error will be returned either on
'add element'.
This was inspired by a failing case reported by Phil Sutter (where
concatenated overlapping ranges would fail insertion silently) and is
fixed by kernel series with subject:
nftables: Consistently report partial and entire set overlaps
With that series, these tests now pass also if the call to set_overlap()
on insertion is skipped. Partial or entire overlapping was already
detected by the kernel for concatenated ranges (nft_set_pipapo) from
the beginning, and that series makes the nft_set_rbtree implementation
consistent in terms of detection and reporting. Without that, overlap
checks are performed by nft but not guaranteed by the kernel.
However, we can't just drop set_overlap() now, as we need to preserve
compatibility with older kernels.
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Dump validation may fail:
- tcp dport { 22, 23 } counter packets 0 bytes 0
+ tcp dport { 22, 23 } counter packets 9 bytes 3400
... which is normal on host namespace.
Signed-off-by: Florian Westphal <fw@strlen.de>
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run_tests.sh alreadty discards stderr by default, but will show it in
case the test script is run directly (passed as argument).
Discarding stderr also in the script prevents one from seeing
BUG() assertions and the like.
Signed-off-by: Florian Westphal <fw@strlen.de>
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This test checks that set elements can be added, deleted, that
addition and deletion are refused when appropriate, that entries
time out properly, and that they can be fetched by matching values
in the given ranges.
v5:
- speed this up by performing the timeout test for one single
permutation (Phil Sutter), by decreasing the number of
permutations from 96 to 12 if this is invoked by run-tests.sh
(Pablo Neira Ayuso) and by combining some commands into single
nft calls where possible: with dash 0.5.8 on AMD Epyc 7351 the
test now takes 1.8s instead of 82.5s
- renumber test to 0043, 0042 was added meanwhile
v4: No changes
v3:
- renumber test to 0042, 0041 was added meanwhile
v2:
- actually check an IPv6 prefix, instead of specifying everything
as explicit ranges in ELEMS_ipv6_addr
- renumber test to 0041, 0038 already exists
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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A simple test to cover set lookup and update in one rule.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Reset command causes a dump of the objects to reset and adds those to
cache. Yet it ignored if the object in question was already there and up
to now CMD_RESET was flagged as NFT_CACHE_FULL.
Tackle this from two angles: First, reduce cache requirements of reset
command to the necessary bits which is table cache. This alone would
suffice if there wasn't interactive mode (and other libnftables users):
A cache containing the objects to reset might be in place already, so
add dumped objects to cache only if they don't exist already.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Instead of calling 'which diff' over and over again, just detect the
tool's presence in run-tests.sh and pass $DIFF to each testcase just
like with nft binary.
Fall back to using 'true' command to avoid the need for any conditional
calling in test cases.
While being at it, unify potential diff calls so that a string
comparison in shell happens irrespective of diff presence.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch turns on POSIXLY_CORRECT on the getopt parser to enforce
options before commands. Users get a hint in such a case:
# nft list ruleset -a
Error: syntax error, options must be specified before commands
nft list ruleset -a
^ ~~
This patch recovers 9fc71bc6b602 ("main: Fix for misleading error with
negative chain priority").
Tests have been updated.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add sets using unspecific string/integer types, one with
osf name, other with vlan id. Neither type can be used directly,
as they lack the type size information.
Signed-off-by: Florian Westphal <fw@strlen.de>
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Check from the delinearize set element path if the nul-root element
already exists in the interval set. Hence, the element insertion path
skips the implicit nul-root interval insertion.
Under some circunstances, nft bogusly fails to delete the last element
of the interval set and to create an element in an existing empty
internal set. This patch includes a test that reproduces the issue.
Fixes: 4935a0d561b5 ("segtree: special handling for the first non-matching segment")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This fixes get element command for interval sets with host byte order
data type, like e.g. mark. During serializing of the range (or element)
to query, data was exported in wrong byteorder and consequently not
found in kernel.
The mystery part is that code seemed correct: When calling
constant_expr_alloc() from set_elem_add(), the set key's byteorder was
passed with correct value of BYTEORDER_HOST_ENDIAN.
Comparison with delete/add element code paths though turned out that in
those use-cases, constant_expr_alloc() is called with BYTEORDER_INVALID:
- seg_tree_init() takes byteorder field value of first element in
init->expressions (i.e., the elements requested on command line) and
assigns that to tree->byteorder
- tree->byteorder is passed to constant_expr_alloc() in
set_insert_interval()
- the elements' byteorder happens to be the default value
This patch may not fix the right side, but at least it aligns get with
add/delete element codes.
Fixes: a43cc8d53096d ("src: support for get element command")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Make sure any intervals to delete actually exist, otherwise reject the
command. Without this, it is possible to mess up rbtree contents:
| # nft list ruleset
| table ip t {
| set s {
| type ipv4_addr
| flags interval
| auto-merge
| elements = { 192.168.1.0-192.168.1.254, 192.168.1.255 }
| }
| }
| # nft delete element t s '{ 192.168.1.0/24 }'
| # nft list ruleset
| table ip t {
| set s {
| type ipv4_addr
| flags interval
| auto-merge
| elements = { 192.168.1.255-255.255.255.255 }
| }
| }
Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The sets constructed for meters are flagged as anonymous and dynamic.
However, in some places there are only checks that they are dynamic,
which can lead to normal sets being classified as meters.
For example:
# nft add table t
# nft add set t s { type ipv4_addr; size 256; flags dynamic,timeout; }
# nft add chain t c
# nft add rule t c tcp dport 80 meter m size 128 { ip saddr limit rate 10/second }
# nft list meters
table ip t {
set s {
type ipv4_addr
size 256
flags dynamic,timeout
}
meter m {
type ipv4_addr
size 128
flags dynamic
}
}
# nft list meter t m
table ip t {
meter m {
type ipv4_addr
size 128
flags dynamic
}
}
# nft list meter t s
Error: No such file or directory
list meter t s
^
Add a new helper `set_is_meter` and use it wherever there are checks for
meters.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Florian Westphal <fw@strlen.de>
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Add double quotes to protect newlines when using <<< redirection.
See also commit b878cb7d83855.
Signed-off-by: Eric Jallot <ejallot@gmail.com>
Signed-off-by: Phil Sutter <phil@nwl.cc>
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Requires kernel commit acab713177377
("netfilter: nf_tables: allow lookups in dynamic sets"), else the
rule add will fail.
Signed-off-by: Florian Westphal <fw@strlen.de>
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changes
meter f size 1024 { ip saddr limit rate 10/second} accept
to
meter f size 1024 { ip saddr limit rate 10/second } accept
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This tests the installed host nft binary, which fails on my test vm.
Using the one from the working tree makes this test pass.
Signed-off-by: Florian Westphal <fw@strlen.de>
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Problem: Its not possible to easily match both udp and tcp in a single
rule.
... input ip protocol { tcp,udp } dport 53
will not work, as bison expects "tcp dport" or "sctp dport", or any
other transport protocol name.
Its possible to match the sport and dport via raw payload expressions,
e.g.:
... input ip protocol { tcp,udp } @th,16,16 53
but its not very readable.
Furthermore, its not possible to use this for set definitions:
table inet filter {
set myset {
type ipv4_addr . inet_proto . inet_service
}
chain forward {
type filter hook forward priority filter; policy accept;
ip daddr . ip protocol . @th,0,16 @myset
}
}
# nft -f test
test:7:26-35: Error: can not use variable sized data types (integer) in concat expressions
During the netfilter workshop Pablo suggested to add an alias to do raw
sport/dport matching more readable, and make it use the inet_service
type automatically.
So, this change makes @th,0,16 work for the set definition case by
setting the data type to inet_service.
A new "th s|dport" syntax is provided as readable alternative:
ip protocol { tcp, udp } th dport 53
As "th" is an alias for the raw expression, no dependency is
generated -- its the users responsibility to add a suitable test to
select the l4 header types that should be matched.
Suggested-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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Update tests to invoke the reset command.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds a test for 24f33c710e8c ("src: enable set expiration
date for set elements").
This is also implicitly testing for a cache corruption bug that is fixed
by 9b032cd6477b ("monitor: fix double cache update with --echo").
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Syntax passed to awk in that one testcase caused a warning, fix the
syntax.
Fixes: e0a9aad024809 ("tests: shell: fix tests for deletion via handle attribute")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add at least two elements to sets.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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# cat test.nft
add set x y { type ipv4_addr; }
add element x y { 10.0.24.0/24 }
# nft -f test.nft
# nft delete element x y { 10.0.24.0/24 }
bogusly returns -ENOENT. The non-matching segment (0.0.0.0 with end-flag
set on) is not added to the set in the example above.
This patch also adds a test to cover this case.
Fixes: 4935a0d561b5 ("segtree: special handling for the first non-matching segment")
Reported-by: Václav Zindulka <vaclav.zindulka@tlapnet.cz>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The shell-based tests currently encode a return value in the
file name, i.e. foo_1 expects that the script should return '1'
for the test case to pass.
This is very error prone, and one test case is even broken (i.e.,
it returns 1, but because of a different, earlier error).
do_something || exit 1
or
'set -e'
are both pretty common patterns, in both cases tests should fail.
In those test-cases that deliberately test for an error,
nft something_should_fail || exit 0
nft something_should_fail && exit 1
or a similar constructs should be used.
This initial commit modififies all '_1' scripts to return 0 on
success, usually via 'nft wrong || exit 0'.
All tests pass, except the one broken test case that hasn't worked
before either, but where 'set -e' use made it pass (the failing command
is supposed to work, and the command that is supposed to fail is never
run).
Signed-off-by: Florian Westphal <fw@strlen.de>
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Despite the recent fixes, the test still fails. While trying to address
the remaining issues, I found more potentially problematic inputs so
extend the test by those.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This command is currently broken when used in sets with ranges. Test
various variants against known data and check if output is as expected.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds the possibility to use textual names to set the chain priority
to standard values so that numeric values do not need to be learnt any more for
basic usage.
Basic arithmetic can also be done with them to ease the addition of
relatively higher/lower priority chains.
Addition and substraction is possible.
Values are also printed with their friendly name within the range of
<basicprio> +- 10.
Also numeric printing is supported in case of -nnn option
(numeric == NFT_NUMERIC_ALL)
The supported name-value pairs and where they are valid is based on how
x_tables use these values when registering their base chains. (See
iptables/nft.c in the iptables repository).
Also see the compatibility matrices extracted from the man page:
Standard priority names, family and hook compatibility matrix
┌─────────┬───────┬────────────────┬─────────────┐
│Name │ Value │ Families │ Hooks │
├─────────┼───────┼────────────────┼─────────────┤
│ │ │ │ │
│raw │ -300 │ ip, ip6, inet │ all │
├─────────┼───────┼────────────────┼─────────────┤
│ │ │ │ │
│mangle │ -150 │ ip, ip6, inet │ all │
├─────────┼───────┼────────────────┼─────────────┤
│ │ │ │ │
│dstnat │ -100 │ ip, ip6, inet │ prerouting │
├─────────┼───────┼────────────────┼─────────────┤
│ │ │ │ │
│filter │ 0 │ ip, ip6, inet, │ all │
│ │ │ arp, netdev │ │
├─────────┼───────┼────────────────┼─────────────┤
│ │ │ │ │
│security │ 50 │ ip, ip6, inet │ all │
├─────────┼───────┼────────────────┼─────────────┤
│ │ │ │ │
│srcnat │ 100 │ ip, ip6, inet │ postrouting │
└─────────┴───────┴────────────────┴─────────────┘
Standard priority names and hook compatibility for the bridge family
┌───────┬───────┬─────────────┐
│ │ │ │
│Name │ Value │ Hooks │
├───────┼───────┼─────────────┤
│ │ │ │
│dstnat │ -300 │ prerouting │
├───────┼───────┼─────────────┤
│ │ │ │
│filter │ -200 │ all │
├───────┼───────┼─────────────┤
│ │ │ │
│out │ 100 │ output │
├───────┼───────┼─────────────┤
│ │ │ │
│srcnat │ 300 │ postrouting │
└───────┴───────┴─────────────┘
This can be also applied for flowtables wher it works as a netdev family
chain.
Example:
nft> add table ip x
nft> add chain ip x y { type filter hook prerouting priority raw; }
nft> add chain ip x z { type filter hook prerouting priority mangle + 1; }
nft> add chain ip x w { type filter hook prerouting priority dstnat - 5; }
nft> add chain ip x r { type filter hook prerouting priority filter + 10; }
nft> add chain ip x t { type filter hook prerouting priority security; }
nft> add chain ip x q { type filter hook postrouting priority srcnat + 11; }
nft> add chain ip x h { type filter hook prerouting priority 15; }
nft>
nft> add flowtable ip x y { hook ingress priority filter + 5 ; devices = {enp0s31f6}; }
nft>
nft> add table arp x
nft> add chain arp x y { type filter hook input priority filter + 5; }
nft>
nft> add table bridge x
nft> add chain bridge x y { type filter hook input priority filter + 9; }
nft> add chain bridge x z { type filter hook prerouting priority dstnat; }
nft> add chain bridge x q { type filter hook postrouting priority srcnat; }
nft> add chain bridge x k { type filter hook output priority out; }
nft>
nft> list ruleset
table ip x {
flowtable y {
hook ingress priority filter + 5
devices = { enp0s31f6 }
}
chain y {
type filter hook prerouting priority raw; policy accept;
}
chain z {
type filter hook prerouting priority mangle + 1; policy accept;
}
chain w {
type filter hook prerouting priority dstnat - 5; policy accept;
}
chain r {
type filter hook prerouting priority filter + 10; policy accept;
}
chain t {
type filter hook prerouting priority security; policy accept;
}
chain q {
type filter hook postrouting priority 111; policy accept;
}
chain h {
type filter hook prerouting priority 15; policy accept;
}
}
table arp x {
chain y {
type filter hook input priority filter + 5; policy accept;
}
}
table bridge x {
chain y {
type filter hook input priority filter + 9; policy accept;
}
chain z {
type filter hook prerouting priority dstnat; policy accept;
}
chain q {
type filter hook postrouting priority srcnat; policy accept;
}
chain k {
type filter hook output priority out; policy accept;
}
}
nft> # Everything should fail after this
nft> add chain ip x h { type filter hook prerouting priority first; }
Error: 'first' is invalid priority in this context.
add chain ip x h { type filter hook prerouting priority first; }
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
nft> add chain ip x q { type filter hook prerouting priority srcnat + 11; }
Error: 'srcnat' is invalid priority in this context.
add chain ip x q { type filter hook prerouting priority srcnat + 11; }
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
nft> add chain arp x y { type filter hook input priority raw; }
Error: 'raw' is invalid priority in this context.
add chain arp x y { type filter hook input priority raw; }
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
nft> add flowtable ip x y { hook ingress priority magle; devices = {enp0s31f6}; }
Error: 'magle' is invalid priority.
add flowtable ip x y { hook ingress priority magle; devices = {enp0s31f6}; }
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
nft> add chain bridge x r { type filter hook postrouting priority dstnat; }
Error: 'dstnat' is invalid priority in this context.
add chain bridge x r { type filter hook postrouting priority dstnat; }
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
nft> add chain bridge x t { type filter hook prerouting priority srcnat; }
Error: 'srcnat' is invalid priority in this context.
add chain bridge x t { type filter hook prerouting priority srcnat; }
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Signed-off-by: Máté Eckl <ecklm94@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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error was:
nft create set inet filter keepalived_ranges4 { type inet_service . ifname \; }
Error: Empty string is not allowed
This was fixed in
6b00b9537e181 ("evaluate: skip evaluation of datatype concatenations").
Signed-off-by: Florian Westphal <fw@strlen.de>
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Default not to print the service name as we discussed during the NFWS.
# nft list ruleset
table ip x {
chain y {
tcp dport 22
ip saddr 1.1.1.1
}
}
# nft -l list ruleset
table ip x {
chain y {
tcp dport ssh
ip saddr 1.1.1.1
}
}
# nft -ll list ruleset
table ip x {
chain y {
tcp dport 22
ip saddr 1dot1dot1dot1.cloudflare-dns.com
}
}
Then, -ll displays FQDN. just like the (now deprecated) --ip2name (-N)
option.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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We need to signal the kernel to use a set backend that supports dynamic
updates.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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4s5ms gets rounded to 4s8ms with HZ=250, which is a common setting.
Signed-off-by: Florian Westphal <fw@strlen.de>
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bash 4.3.30 removes newlines in RULESET when "" are omitted, which
then causes nft -f to complain about invalid syntax.
As a result, all test cases that use this here-doc style fail.
Signed-off-by: Florian Westphal <fw@strlen.de>
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Pablo reports set test fails with HZ=250, as it lists "324ms" instead
of "321". This is because of rounding errors that occur when converting
from user-side millisecond scale to kernel-internal jiffies one.
use 100ms for now to avoid this error.
Alternatives would be to store use-provided value in kernel or to avoid
the conversions; this would require a change to make timeout independent from
jiffies on kernel side.
Reported-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
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currently the frontend uses seconds everywhere and
multiplies/divides by 1000.
Pass milliseconds around instead and extend the scanner to accept 'ms'
in timestrings.
Signed-off-by: Florian Westphal <fw@strlen.de>
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Otherwise, 65535 is used and testsuite reports dump mismatch.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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We also need to clear expr ctx before we eval a command.
This is a followup fix to 'evaluate: reset eval context when evaluating
set definitions'.
The first patch only fixed set evaluation when dealing with
a complete table representation rather than individual commands.
Reported-by: David Fabian <david.fabian@bosson.cz>
Signed-off-by: Florian Westphal <fw@strlen.de>
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David reported nft chokes on this:
nft -f /tmp/A
/tmp/A:9:22-45: Error: datatype mismatch, expected concatenation of (IPv4 address, internet network service, IPv4 address), expression has type concatenation of (IPv4 address, internet network service)
cat /tmp/A
flush ruleset;
table ip filter {
set setA {
type ipv4_addr . inet_service . ipv4_addr
flags timeout
}
set setB {
type ipv4_addr . inet_service
flags timeout
}
}
Problem is we leak set definition details of setA to setB via eval
context, so reset this.
Also add test case for this.
Reported-by: David Fabian <david.fabian@bosson.cz>
Signed-off-by: Florian Westphal <fw@strlen.de>
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In libnftables, detect if given filename is '-' and treat it as the
common way of requesting to read from stdin, then open /dev/stdin
instead. (Calling 'nft -f /dev/stdin' worked before as well, but this
makes it official.)
With this in place and bash's support for here strings, review all tests
in tests/shell for needless use of temp files. Note that two categories
of test cases were intentionally left unchanged:
- Tests creating potentially large rulesets to avoid running into shell
parameter length limits.
- Tests for 'include' directive for obvious reasons.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Reported-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Fetch object, chain and set handles and with '-a' option and then delete
them.
Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Complete the automated shell tests with the verification of
the test file dump, only for positive tests and if the test
execution was successful.
It's able to generate the dump file with the -g option.
Example:
# ./run-tests.sh -g testcases/chains/0001jumps_0
The dump files are generated in the same path in the folder named
dumps/ with .nft extension.
It has been avoided the dump verification code in every test
file.
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
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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Delete set with given unique set handle.
Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com>
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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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This new datatype is a string subtype.
It will allow us to build named maps/sets using meta keys like 'iifname',
'oifname', 'ibriport' or 'obriport'.
Example:
table inet t {
set s {
type ifname
elements = { "eth0",
"eth1" }
}
chain c {
iifname @s accept
oifname @s accept
}
}
Signed-off-by: Arturo Borrero Gonzalez <arturo@netfilter.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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currently kernel may pick a set implementation that doesn't provide
a ->update() function. This causes an error when user attempts to
add the nftables rule that is supposed to add entries to the set.
Signed-off-by: Florian Westphal <fw@strlen.de>
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