| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add capability to have rules matching IPv4 options. This is developed
mainly to support dropping of IP packets with loose and/or strict source
route route options.
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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These keys are available since kernel >= 4.17.
You can still use NFT_CT_{SRC,DST}, however, you need to specify 'meta
protocol' in first place to provide layer 3 context.
Note that NFT_CT_{SRC,DST} are broken with set, maps and concatenations.
This patch is implicitly fixing these cases.
If your kernel is < 4.17, you can still use address matching via
explicit meta nfproto:
meta nfproto ipv4 ct original saddr 1.2.3.4
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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There are two datatypes are using runtime datatype allocation:
* Concatenations.
* Integer, that require byteorder adjustment.
From the evaluation / postprocess step, transformations are common,
hence expressions may end up fetching (infering) datatypes from an
existing one.
This patch adds a reference counter to release the dynamic datatype
object when it is shared.
The API includes the following helper functions:
* datatype_set(expr, datatype), to assign a datatype to an expression.
This helper already deals with reference counting for dynamic
datatypes. This also drops the reference counter of any previous
datatype (to deal with the datatype replacement case).
* datatype_get(datatype) bumps the reference counter. This function also
deals with nul-pointers, that occurs when the datatype is unset.
* datatype_free() drops the reference counter, and it also releases the
datatype if there are not more clients of it.
Rule of thumb is: The reference counter of any newly allocated datatype
is set to zero.
This patch also updates every spot to use datatype_set() for non-dynamic
datatypes, for consistency. In this case, the helper just makes an
simple assignment.
Note that expr_alloc() has been updated to call datatype_get() on the
datatype that is assigned to this new expression. Moreover, expr_free()
calls datatype_free().
This fixes valgrind reports like this one:
==28352== 1,350 (440 direct, 910 indirect) bytes in 5 blocks are definitely lost in loss recor 3 of 3
==28352== at 0x4C2BBAF: malloc (vg_replace_malloc.c:299)
==28352== by 0x4E79558: xmalloc (utils.c:36)
==28352== by 0x4E7963D: xzalloc (utils.c:65)
==28352== by 0x4E6029B: dtype_alloc (datatype.c:1073)
==28352== by 0x4E6029B: concat_type_alloc (datatype.c:1127)
==28352== by 0x4E6D3B3: netlink_delinearize_set (netlink.c:578)
==28352== by 0x4E6D68E: list_set_cb (netlink.c:648)
==28352== by 0x5D74023: nftnl_set_list_foreach (set.c:780)
==28352== by 0x4E6D6F3: netlink_list_sets (netlink.c:669)
==28352== by 0x4E5A7A3: cache_init_objects (rule.c:159)
==28352== by 0x4E5A7A3: cache_init (rule.c:216)
==28352== by 0x4E5A7A3: cache_update (rule.c:266)
==28352== by 0x4E7E0EE: nft_evaluate (libnftables.c:388)
==28352== by 0x4E7EADD: nft_run_cmd_from_filename (libnftables.c:479)
==28352== by 0x109A53: main (main.c:310)
This patch also removes the DTYPE_F_CLONE flag which is broken and not
needed anymore since proper reference counting is in place.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Update trace and json too.
Fixes: 142350f154c7 ("src: invalid read when importing chain name")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch restores 61236968b7a1 ("parser: evaluate commands immediately
after parsing") following a different approach.
In this patch, the evaluation phase is done if the parsing phase fails,
hence the user gets parsing and evaluation errors in one shot, which is
the purpose of 61236968b7a1.
Note that evaluation errors are now shown after parser errors, the example
available in 61236968b7a1 displays with this patch the following error:
# nft -f /tmp/bad.nft
/tmp/bad.nft:3:32-32: Error: syntax error, unexpected newline
add rule filter input tcp dport
^
/tmp/bad.nft:5:37-41: Error: syntax error, unexpected dport, expecting end of file or newline or semicolon
add rule filter input tcp dport tcp dport
^^^^^
/tmp/bad.nft:4:33-35: Error: datatype mismatch, expected internet network service, expression has type Internet protocol
add rule filter input tcp dport tcp
~~~~~~~~~ ^^^
So evaluation pointing to line 4 happens after line error reporting
generated by the parser that points to line 3, while 61236968b7a1 was
showing errors per line in order. As a future work, we can sort the
error reporting list to restore exactly the same behaviour.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Parsing of the "target" property was flawed in two ways:
* The value was extracted twice. Drop the first unconditional one.
* Expression allocation required since commit f1e8a129ee428 was broken,
The expression was allocated only if the property was not present.
Fixes: f1e8a129ee428 ("src: Introduce chain_expr in jump and goto statements")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Introduce expressions as a chain in jump and goto statements.
This is going to be used to support variables as a chain in the
following patches.
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Seems like it wasn't possible to add or list ct timeout objects.
Fixes: c82a26ebf7e9f ("json: Add ct timeout support")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Family may be specified also if no address is given at the same time,
make parser/printer tolerant to that. Also fix for missing/incorrect
JSON equivalents in tests/py.
While being at it, fix two issues in non-JSON tests:
* Ruleset is printed in numeric mode, so use 'l4proto 6' instead of
'l4proto tcp' in rules to avoid having to specify expected output for
that unrelated bit.
* In ip and ip6 family tables, family parameter is not deserialized on
output.
Fixes: 3edb96200690b ("parser_bison: missing tproxy syntax with port only for inet family")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Parser didn't know about that protocol, also testsuite bits were
missing.
Fixes: bad27ca386276 ("src: add igmp support")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add the missing bits to JSON parser, printer, man page and testsuite.
Fixes: fbe27464dee45 ("src: add nat support for the inet family")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Pass the location via the handle so the error leg in
rule_translate_index() can reference it. Applies to invalid references
to tables, chains, and indexes.
Fixes: 586ad210368b ("libnftables: Implement JSON parser")
Signed-off-by: Eric Garver <eric@garver.life>
Acked-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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We need to increment the index by one just as the CLI does.
Fixes: 586ad210368b7 ("libnftables: Implement JSON parser")
Signed-off-by: Eric Garver <eric@garver.life>
Acked-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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As per the man page, if the user does not specify the l3proto it should
be derived from the table family.
Fixes: 586ad210368b ("libnftables: Implement JSON parser")
Signed-off-by: Eric Garver <eric@garver.life>
Acked-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Wrong callback in json_parse_cmd_list() for "maps" key.
Fixes: 586ad210368b7 ("libnftables: Implement JSON parser")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Parser expects an object in policy property and json_is_object() returns
true if given parameter is an object. The check was inverse by accident.
Fixes: c82a26ebf7e9f ("json: Add ct timeout support")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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When creating a map, users may either map dtype:dtype or dtype:object.
In the second case, only counter, quota, limit and secmark is allowed by
bison, but JSON parser wasn't as strict, allowing ct helper as well.
Remove that to avoid undefined behaviour.
Fixes: 586ad210368b7 ("libnftables: Implement JSON parser")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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A segmentation fault is produced when applying an input JSON file
like the following:
{"nftables": [
{ "add":
{"map":
{"family": "ip",
"name": "persistencia",
"table": "nftlb",
"type": "ipv4_addr",
"map": "mark",
"size": 65535,
"flags": ["timeout"],
"timeout": 44
}
}
}
]}
The captured error is:
Program received signal SIGSEGV, Segmentation fault.
#1 0x00007ffff7f734f9 in string_to_nft_object (str=0x55555555f410
"mark") at parser_json.c:2513
2513 if (!strcmp(str, obj_tbl[i]))
The obj_tbl array is allocated with the maximum element index even
if lower indexes are not populated, so it produces null pointer
items.
This patch ensures that the maximum number of possible indexes
but also the element is not comparing a null pointer.
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
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Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Instead of guessing which object to update with retrieved handle,
introduce a list containing struct cmd <-> json_t associations. Upon
batch commit, allocated cmd objects are assigned a unique netlink
sequence number. Monitor events contain that number as well, so they may
be associated to the cmd object which triggered them. Using
json_cmd_assoc list the event may in turn be associated to the input's
JSON object which should receive the handle value.
This also fixes incorrect behaviour if JSON input contained "insert"
commands.
Fixes: bb32d8db9a125 ("JSON: Add support for echo option")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Priority value was parsed but not assigned to allocated chain object.
Fixes: 586ad210368b7 ("libnftables: Implement JSON parser")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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When extracting netlink message data for populating JSON objects with
handles, allocated nftnl objects were not freed. Though since freeing
these objects also frees retrieved string attributes, copy them using
strdupa() which takes care of memory deallocation upon function return.
This is ideal since these strings are used only to find the right JSON
object to insert the handle into.
Fixes: bb32d8db9a125 ("JSON: Add support for echo option")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Use xstrdup() instead of plain strdup() for consistency (and implicit
ENOMEM checking).
Fixes: 586ad210368b7 ("libnftables: Implement JSON parser")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Since verdict expression frees the chain name, pass a newly allocated
string to it. Otherwise double free happens because json_decref() frees
the string property value as well.
Fixes: d1057a5feb5fd ("JSON: Simplify verdict statement parsing")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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size of struct expr changes from 144 to 128 bytes on x86_64.
This doesn't look like much, but large rulesets can have tens of thousands
of expressions (each set element is represented by an expression).
Signed-off-by: Florian Westphal <fw@strlen.de>
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Temporary kludge to remove all the expr->ops->type == ... patterns.
Followup patch will remove expr->ops, and make expr_ops() lookup
the correct expr_ops struct instead to reduce struct expr size.
Signed-off-by: Florian Westphal <fw@strlen.de>
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Since libnftnl recently dropped JSON output support, this form of JSON
export is not available anymore. Point at 'nft -j list ruleset' command
for a replacement in error message.
Since 'export' command is not useable anymore, remove it from
documentation. Instead point out that 'list ruleset' command serves well
for dumping and later restoring.
To not cause pointless inconvenience for users wishing to store their
ruleset in JSON format, make JSON parser fallback to CMD_ADD if no
recognized command property was found. This allows to feed the output of
'nft -j list ruleset' into 'nft -f' without any modification.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add NFT_CTX_OUTPUT_ECHO flag and echo the command that has been send to
the kernel.
Acked-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The basic principle is to not return a JSON object freshly created from
netlink responses, but just update the existing user-provided one to
make sure callers get back exactly what they expect.
To achieve that, keep the parsed JSON object around in a global variable
('cur_root') and provide a custom callback to insert handles into it
from received netlink messages. The tricky bit here is updating rules
since unique identification is problematic. Therefore drop possibly
present handles from input and later assume updates are received in
order so the first rule not having a handle set is the right one.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Commits introducing nft_ctx pointer to netlink and eval contexts did not
update JSON code accordingly.
Fixes: 00f777bfc414a ("src: pass struct nft_ctx through struct eval_ctx")
Fixes: 2dc07bcd7eaa5 ("src: pass struct nft_ctx through struct netlink_ctx")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Having to use numerical values for ttl property in JSON is not
practical as these values are arbitrary and meaningful only in
netfilter. Instead align JSON output/input with standard API, accepting
names for TTL matching strategy.
Also add missing documentation in libnftables-json man page and fix JSON
equivalent in tests/py.
Fixes: 03eafe098d5ee ("osf: add ttl option support")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add support for ttl option in "osf" expression. Example:
table ip foo {
chain bar {
type filter hook input priority filter; policy accept;
osf ttl skip name "Linux"
}
}
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add support for new nft object secmark holding security context strings.
The following should demonstrate its usage (based on SELinux context):
# define a tag containing a context string
nft add secmark inet filter sshtag \"system_u:object_r:ssh_server_packet_t:s0\"
nft list secmarks
# set the secmark
nft add rule inet filter input tcp dport 22 meta secmark set sshtag
# map usage
nft add map inet filter secmapping { type inet_service : secmark \; }
nft add element inet filter secmapping { 22 : sshtag }
nft list maps
nft list map inet filter secmapping
nft add rule inet filter input meta secmark set tcp dport map @secmapping
[ Original patch based on v0.9.0. Rebase on top on git HEAD. --pablo ]
Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Since handle->family is unsigned, checking for value < 0 never yields
true. Overcome this by changing parse_family() to return an error code
and write the parsed family value into a pointer passed as parameter.
The above change required a bit more cleanup to avoid passing pointers
to signed variables to the function. Also leverage json_parse_family() a
bit more to reduce code side.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add support for printing and parsing ct timeout objects to JSON API.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This allows matching on ipsec tunnel/beet addresses in xfrm state
associated with a packet, ipsec request id and the SPI.
Examples:
ipsec in ip saddr 192.168.1.0/24
ipsec out ip6 daddr @endpoints
ipsec in spi 1-65536
Joint work with Florian Westphal.
Cc: Máté Eckl <ecklm94@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
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Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
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When trying to add a chain to a non-existing table, error reporting
tries to dereference indesc pointer of the table's location. Hence make
sure the latter is initialized correctly.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Right now this object merely contains the nftables version and release
name as well as a JSON schema version, but it could be extended
arbitrarily. In the future, this will also allow for non-compatible
schema changes should the need for this arise.
Adjust the parser to accept metainfo objects and make it verify
json_schema_version to be less than or equal to the one hard-coded in
the library.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This special operator is required for cases where missing operator does
not lead to same results as equal operator, i.e. with bitmasks on RHS.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Instead of the generic "left" and "right", use "key" and "value".
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Change the rather generic "left" and "right" into "key" and "data" as
suggested at NFWS.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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For raw payloads, property "name" is not needed, it's clearly identified
by base/offset/len properties.
In non-raw payload expressions, rename property "name" to "protocol" as
suggested during NFWS.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Change jump and goto verdicts to become extensible by dedicating an
object for the target parameter.
While being at it, drop break and queue verdict expressions since they
don't seem to exist, no idea where I got those from in the first place.
For queue, there is a dedicated expression at least.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Lessons learned from fwd statement: We must not assume a given
statement/expression may not receive further properties in the future.
Therefore make meta value an object with a property "key" instead of
just a string containing the key name.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Florian Westphal <fw@strlen.de>
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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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This can be used like ct mark or meta mark except it cannot be set. doc
and tests are included.
Signed-off-by: Máté Eckl <ecklm94@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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