| Commit message (Collapse) | Author | Age | Files | Lines |
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This is a test case for the kernel bug fixed by:
netfilter: nf_tables: fix nat hook table deletion
Signed-off-by: Florian Westphal <fw@strlen.de>
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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 is borrowed from one of firewalld's test cases.
Signed-off-by: Eric Garver <eric@garver.life>
Signed-off-by: Phil Sutter <phil@nwl.cc>
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Expand the test case to also check for returned rule handles in the JSON
output.
Signed-off-by: Eric Garver <eric@garver.life>
Signed-off-by: Phil Sutter <phil@nwl.cc>
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Verify that we get the expected number of rules with --echo (i.e. the
reply wasn't truncated).
Signed-off-by: Eric Garver <eric@garver.life>
Signed-off-by: Phil Sutter <phil@nwl.cc>
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Rule that fails to be added while holding a bound set triggers
user-after-free from the abort path.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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A rule may be added before or after another one using index keyword. To
support for the other rule being added within the same batch, one has to
make use of NFTNL_RULE_ID and NFTNL_RULE_POSITION_ID attributes. This
patch does just that among a few more crucial things:
* If cache is complete enough to contain rules, update cache when
evaluating rule commands so later index references resolve correctly.
* Reduce rule_translate_index() to its core code which is the actual
linking of rules and consequently rename the function. The removed
bits are pulled into the calling rule_evaluate() to reduce code
duplication in between cache updates with and without rule reference.
* Pass the current command op to rule_evaluate() as indicator whether to
insert before or after a referenced rule or at beginning or end of
chain in cache. Exploit this from chain_evaluate() to avoid adding
the chain's rules a second time.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This reliably triggered ENOBUFS condition in mnl_batch_talk(). With the
past changes, it passes even after increasing the number of rules to
300k.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Reported-by: Laura Garcia <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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flush chain ip filter group_7933
Removes all rules, including references to set 'group_7933', however:
delete map ip filter group_7933
results in:
delete.nft:6:1-32: Error: Could not process rule: Device or resource busy
delete map ip filter group_7933
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This triggers kernel crash in 5.0, see
https://bugzilla.netfilter.org/show_bug.cgi?id=1325
Signed-off-by: Florian Westphal <fw@strlen.de>
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Flush after rule deletion should hit no ENOENT.
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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nlt is reallocated, leaking first allocation and also removing
the table name/handle that was set on nlt object.
Add a test case for this as well, the batch is supposed to fail
when trying to delete a non-existant table, rather than wiping
all tables in the same address family.
Fixes: 12c362e2214a0 ("mnl: remove alloc_nftnl_table()")
Reported-by: Mikhail Morfikov <mmorfikov@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
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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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Taehee Yoo fixed a bug in error path handling for object refcounts.
Quoting patch description:
| $nft add table ip filter
| $nft add counter ip filter c1
| $nft add map ip filter m1 { type ipv4_addr : counter \;}
| $nft add element ip filter m1 { 1 : c1 }
| $nft add element ip filter m1 { 1 : c1 }
| $nft delete element ip filter m1 { 1 }
| $nft delete counter ip filter c1
|Result:
| Error: Could not process rule: Device or resource busy
| delete counter ip filter c1
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|At the second 'nft add element ip filter m1 { 1 : c1 }', the reference
|count of the 'c1' is increased then it tries to insert into the 'm1'. but
|the 'm1' already has same element so it returns -EEXIST.
|But it doesn't decrease the reference count of the 'c1' in the error path.
|Due to a leak of the reference count of the 'c1', the 'c1' can't be
|removed by 'nft delete counter ip filter c1'.
Signed-off-by: Florian Westphal <fw@strlen.de>
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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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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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We should not hit EBUSY in this case.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This tests what kernel commit ae6153b50f9bf ("netfilter: nf_tables:
permit second nat hook if colliding hook is going away") fixed for.
Signed-off-by: Phil Sutter <phil@nwl.cc>
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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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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This patch adds a test to test refcounting from element to chain and
objects.
Reported-by: Andreas Schultz <aschultz@tpip.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Not having a space between the last element in a set and the closing
curly brace looks ugly, so add it here.
This also adjusts all shell testcases as they match whitespace in nft
output and therefore fail otherwise.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This stderr output is expected.
Signed-off-by: Arturo Borrero Gonzalez <arturo@debian.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch covers transactions using the flat syntax representation, eg.
add table x
add chain x y { type filter hook forward priority 0; }
add chain x y { policy drop; }
This also covers things like:
add element x whitelist { 1.1.1.1 }
delete element x whitelist { 1.1.1.1 }
The one above may look silly from a human behaviour point of view, but
silly robots may very well behave like this.
These tests require several kernel patches though in order to pass
successfully.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
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