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* JSON: Review set elem expressionsPhil Sutter2018-06-012-1/+25
| | | | | | | | | | | | * There is no need to prefix element-specific properties with 'elem_', they can't conflict. * In json_parse_set_stmt(), searching for above properties is pointless since that's already done by called function. * Fix potential NULL-pointer deref in json_parse_set_elem_expr_stmt(): json_parse_flagged_expr() may return NULL. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* objref: Use "ct helper" for NFT_OBJECT_CT_HELPERPhil Sutter2018-06-011-2/+2
| | | | | | | | | Change name of NFT_OBJECT_CT_HELPER in objref_type table to "ct helper" for consistency. Note that this is not used in regular nft output since objref_stmt_print() treats this object type separately. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* meters: do not set a defaut meter size from userspaceFlorian Westphal2018-05-293-3/+3
| | | | | | | doing this breaks with older kernels as it will pick a set without and update callback. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests/py: Support testing JSON input and output as wellPhil Sutter2018-05-1135-0/+7544
| | | | | | | | | | | | | | | | | | This extends nft-test.py by optional JSON testing capabilities, activated via '-j'/'--enable-json' parameter). JSON testing happens for all rules which are supposed to work: After a rule has been added and the existing tests (payload, ruleset listing output) have been performed, basically the same test is done again using a recorded JSON equivalent and (if necessary) a recorded listing output. The code tries to ease new test case creation overhead by auto-generating JSON equivalent input via listing the (non-JSON) rule in JSON format. Also, differing netlink debug and listing output are stored in *.got files to assist in analyzing/fixing failing test cases. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: py: allow to specify sets with a timeoutFlorian Westphal2018-05-091-8/+8
| | | | | | | | | | | Not usable yet, as the set timeout netlink output isn't captured so far, but it adds groundwork to add this as a follow-up. Set definition syntax changes a little, if you want to add multiple elements they now have to be separated by "," just like in nftables. Signed-off-by: Florian Westphal <fw@strlen.de>
* meter: enforce presence of a max sizeFlorian Westphal2018-05-021-1/+1
| | | | | | | | | | meters are updated dynamically, so we don't know in advance how large this structure can be. Add a 'size' keyword to specifiy an upper limit and update the old syntax to assume a default max value of 65535. Signed-off-by: Florian Westphal <fw@strlen.de>
* src: use ibrname and obrnamePablo Neira Ayuso2018-04-191-2/+2
| | | | | | | | | Legacy tool name is 'brctl' and so the 'br' prefix is already known. If we use ibrname and obrname it looks consistent with iifname and oifname. So let's this instead of ibridgename and obridgename since Florian likes this too. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: rename ibrportname, obrportnameFlorian Westphal2018-04-171-0/+3
| | | | | | | | | | | | | | | For bridge, iifname is the port name, whereas 'ibrport' is the logical name of the bridge ("br0") the port ("iifname") is enslaved to. So, 'ibrport' is a misnomer. libnftl calls these 'bri_iifname' and 'bri_oifname', which is good but using 'briiifname' in nft is rather ugly, so use 'ibridgename' and 'obridgename' instead. Old names are still recognized, listing shows the new names. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: py: remove object ID from payload filePablo Neira Ayuso2018-04-111-4/+4
| | | | Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests/py: Use libnftables instead of calling nft binaryPhil Sutter2018-04-116-17/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a simple nftables Python class in py/nftables.py which gives access to libnftables API via ctypes module. nft-test.py is extended to make use of the above class instead of calling nft binary. Since command line formatting had to be touched anyway, this patch also streamlines things a bit by introducing __str__ methods to classes Table and Chain and making extensive use of format strings instead of onerously adding all string parts together. Since the called commands don't see a shell anymore, all shell meta character escaping done in testcases is removed. The visible effects of this change are: * Four new warnings in ip/flowtable.t due to changing objref IDs (will be addressed later in a patch to libnftnl). * Reported command line in warning and error messages changed slightly for obvious reasons. * Reduction of a full test run's runtime by a factor of four. Status diff after running with 'time': < 83 test files, 77 files passed, 1724 unit tests, 0 error, 33 warning < 87.23user 696.13system 15:11.82elapsed 85%CPU (0avgtext+0avgdata 9604maxresident)k < 8inputs+36800outputs (0major+35171235minor)pagefaults 0swaps > 83 test files, 77 files passed, 1724 unit tests, 4 error, 33 warning > 6.80user 30.18system 3:45.86elapsed 16%CPU (0avgtext+0avgdata 14064maxresident)k > 0inputs+35808outputs (0major+2874minor)pagefaults 0swaps Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: redirect: fix tests for upcoming nft-test.py fixFlorian Westphal2018-04-014-6/+6
| | | | | | | nft-test.py currently fails to properly compare tests involving a set, after that bug is fixed these lines would fail, so fix this up before. Signed-off-by: Florian Westphal <fw@strlen.de>
* proto: permit icmp-in-ipv6 and icmpv6-in-ipv4Florian Westphal2018-03-282-3/+10
| | | | | | | | | | | | | | | | | Jozsef points out that meta l4proto icmp icmp type destination-unreachable is hard to read. So, lets just add icmp/icmpv6 to ip/ip6 protocol base so users can just go with icmp type destination-unreachable and let nft fill in needed dependency. After this patch, the recent patch to not remove the dependency can be reverted again. Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: meta: icmp, icmpv6: don't kill required dependenciesFlorian Westphal2018-03-272-0/+37
| | | | | | | | when explicitly filtering icmp-in-ipv6 and icmp6-in-ip don't remove the required l3 protocol dependency, else "nft list ruleset" can't be read via nft -f anymore. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: add test cases for vmap binop transferFlorian Westphal2018-03-175-0/+94
| | | | | | they fail with 'BUG: invalid binary operation 5'. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: update to new syntax to add/update set from packet pathPablo Neira Ayuso2018-03-164-4/+4
| | | | | Reported-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* parser_bison: no need for 'name' token for metersPablo Neira Ayuso2017-11-242-2/+2
| | | | | | | Rework grammar to skip the 'name' token after 'meter' for named meters. For consistency with sets and maps in terms of syntax. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: deprecate "flow table" syntax, replace it by "meter"Pablo Neira Ayuso2017-11-242-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | According to bugzilla 1137: "flow tables" should not be syntactically unique. "Flow tables are always named, but they don't conform to the way sets, maps, and dictionaries work in terms of "add" and "delete" and all that. They are also "flow tables" instead of one word like "flows" or "throttle" or something. It seems weird to just have these break the syntactic expectations." Personally, I never liked the reference to "table" since we have very specific semantics in terms of what a "table" is netfilter for long time. This patch promotes "meter" as the new keyword. The former syntax is still accepted for a while, just to reduce chances of breaking things. At some point the former syntax will just be removed. Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1137 Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Arturo Borrero Gonzalez <arturo@netfilter.org>
* tests: enable ip/ip.t for bridge protocol, tooFlorian Westphal2017-10-262-0/+761
| | | | | | | This does not add any additional warnings, it just increases coverage to bridge. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: fix harmess typo in table nameFlorian Westphal2017-10-262-3/+3
| | | | | | table name should be 'test-ip', not inet. Signed-off-by: Florian Westphal <fw@strlen.de>
* netlink_linearize: skip set element expression in set statement keyAnders K. Pedersen2017-10-064-0/+51
| | | | | | | | | | | | | | | | | | | | Before this patch the following fails: # nft add rule ip6 filter x \ set add ip6 saddr . ip6 daddr @test nft: netlink_linearize.c:648: netlink_gen_expr: Assertion `dreg < ctx->reg_low' failed. Aborted This is was previously fixed for flow statements in fbea4a6f4449 ("netlink_linearize: skip set element expression in flow table key"), and this patch implements the same change for set statements by using the set element key in netlink_gen_set_stmt(). nft-test.py is updated to support set types with concatenated data types in order to support testing of this. Signed-off-by: Anders K. Pedersen <akp@cohaesio.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: rt: fix test casesFlorian Westphal2017-09-291-1/+2
| | | | | | | | | | nfproto meta dependency is no longer needed, keep one test since we still support this syntax. When meta is not provided, no need to add a dependency because nft_rt already checks pf number before checking skb->dst. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: ct: adjust test case commandsFlorian Westphal2017-09-292-17/+17
| | | | | | use 'ip saddr', 'ip6 saddr', etc. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: py: add tests for limit stateful objectPablo M. Bermudo Garay2017-09-042-3/+33
| | | | | | | The patch also reorganizes ip/objects.t file. Signed-off-by: Pablo M. Bermudo Garay <pablombg@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: add test case for ttl/protocol setFlorian Westphal2017-08-174-0/+58
| | | | | | | | | nft .. ip ttl set 42 did set the protocol field and left ttl alone, add test cases for this. Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: py: Add test for ambiguity while setting the valueShyam Saini2017-06-181-0/+2
| | | | | | | | | | | | | | | | | | | | | 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>
* tests: fix up meta l4proto change for ip familyFlorian Westphal2017-05-1910-154/+154
| | | | | | | 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>
* tests: add ip reject with tcp and check for mark tooFlorian Westphal2017-05-182-0/+9
| | | | | | | ... to avoid resetting e.g. the ssh session to the vm that runs nft-test.py. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: don't kill dependencies accross statementsFlorian Westphal2017-05-082-0/+26
| | | | | | add a test case for previous commit. Signed-off-by: Florian Westphal <fw@strlen.de>
* hash: generate a random seed if seed option is emptyLiping Zhang2017-04-152-0/+8
| | | | | | | | | | | Typing the "nft add rule x y ct mark set jhash ip saddr mod 2" will not generate a random seed, instead, the seed will always be zero. So if seed option is empty, we shoulde not set the NFTA_HASH_SEED attribute, then a random seed will be generated in the kernel. Signed-off-by: Liping Zhang <zlpnobody@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: Add test cases for nested anonymous setsPhil Sutter2017-03-224-0/+57
| | | | | | | | | This makes sure nesting of anonymous sets works regardless of whether defines are used or not. As a side-effect, it also checks that overlap checking when IP address prefixes are used, works. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: add insert-failure testFlorian Westphal2017-03-161-0/+1
| | | | | | | It should not be possible to add a ip6 restricted helper to ip family. Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: py: add ct helper testsFlorian Westphal2017-03-162-0/+18
| | | | | | | needs minor tweak to nft-test.py so we don't zap the ';' withhin the {}. Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: hash: support of symmetric hashLaura Garcia Liebana2017-03-062-0/+5
| | | | | | | | | | | | | | | | | | | | | This patch provides symmetric hash support according to source ip address and port, and destination ip address and port. The new attribute NFTA_HASH_TYPE has been included to support different types of hashing functions. Currently supported NFT_HASH_JENKINS through jhash and NFT_HASH_SYM through symhash. The main difference between both types are: - jhash requires an expression with sreg, symhash doesn't. - symhash supports modulus and offset, but not seed. Examples: nft add rule ip nat prerouting ct mark set jhash ip saddr mod 2 nft add rule ip nat prerouting ct mark set symhash mod 2 Signed-off-by: Laura Garcia Liebana <laura.garcia@zevenet.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: revisit tcp options supportPablo Neira Ayuso2017-02-282-20/+20
| | | | | | | | | | | | | | | | | | | 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>
* tests: py: fix incorrect bytecode in numgen and hash mappingsPablo Neira Ayuso2017-02-252-2/+2
| | | | | | | Byteorder is not correct as it is expressed in network byteorder. This uncovered when storing set byteorder in NFTA_USER_DATA. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: py: Add basic tests for ip, ip6 and inetManuel Messner2017-02-122-0/+219
| | | | | Signed-off-by: Manuel Messner <mm@skelett.io> Signed-off-by: Florian Westphal <fw@strlen.de>
* statement: fix print of ip dnat addressFlorian Westphal2017-02-052-0/+13
| | | | | | | | | | | | the change causes non-ipv6 addresses to not be printed at all in case a nfproto was given. Also add a test case to catch this. Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1117 Fixes: 5ab0e10fc6e2c22363a ("src: support for RFC2732 IPv6 address format with brackets") Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: py: Add tests for stateful objectsElise Lennion2017-01-272-0/+46
| | | | | | | | These test for adding counters and quotas, to tables of different families, and for referencing the objects in rules. Signed-off-by: Elise Lennion <elise.lennion@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: py: Use stateless option on testsElise Lennion2017-01-186-6/+6
| | | | | | | | | | | To don't trigger false errors because of unrelated traffic on the tested machine. Tests, which have rules with counter and 'ok' result, are updated to avoid new Warnings. Signed-off-by: Elise Lennion <elise.lennion@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: py: update quota and payloadPablo Neira Ayuso2016-12-143-21/+21
| | | | | | Include new consumed field for quota, and check for csum_flags in payload. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* mnl: don't send empty set elements netlink message to kernelPablo Neira Ayuso2016-12-142-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following command: # nft --debug=mnl add rule x y flow table xyz { ip saddr timeout 30s counter } breaks with EINVAL. The following netlink message is causing the problem: ... ---------------- ------------------ | 0000000044 | | message length | | 02572 | R--- | | type | flags | | 0000000004 | | sequence number| | 0000000000 | | port ID | ---------------- ------------------ | 02 00 00 00 | | extra header | |00008|--|00002| |len |flags| type| | 78 79 7a 00 | | data | x y z |00008|--|00004| |len |flags| type| | 00 00 00 01 | | data | |00006|--|00001| |len |flags| type| | 78 00 00 00 | | data | x ---------------- ------------------ ... This is incorrect since this describes no elements at all, so it is useless. Add upfront check before iterating over the list of set elements so the netlink message is not placed in the batch. This patch also adds a set so flow tables are minimally covered. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests/py: Unmask negative set lookupAnatole Denis2016-11-2914-53/+659
| | | | | | | | 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>
* tests: py: add some testcases for log flagsPablo Neira Ayuso2016-11-141-1/+1
| | | | | | | Remove null and zero flags from tests, to reduce the noise when running tests. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add offset attribute for hash expressionLaura Garcia Liebana2016-11-092-0/+16
| | | | | | | | | | | Add support to add an offset to the hash generator, eg. ct mark set hash ip saddr mod 10 offset 100 This will generate marks with series between 100-109. Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: make hash seed attribute optionalLaura Garcia Liebana2016-11-092-0/+8
| | | | | | | | | | | | | | | | | | The hash expression requires a seed attribute to call the jhash operation, eg. # nft add rule x y meta mark set jhash ip saddr . ip daddr mod 2 \ seed 0xdeadbeef With this patch the seed attribute is optional and it's generated by a random function from userspace, eg. # nft add rule x y meta mark set jhash ip saddr . ip daddr mod 2 The kernel will take care of generate a random seed. Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests/py: add missing payload test for numgen offsetPablo Neira Ayuso2016-10-311-0/+5
| | | | | | | | | | The new cover test for: ct mark set numgen inc mod 2 offset 100 was lacking the payload file chunk. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* Replace tests/files/expr-rt with Python based tests, and replace ether typeAnders K. Pedersen2016-10-292-0/+11
| | | | | | | 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>
* src: add offset attribute for numgen expressionLaura Garcia Liebana2016-10-271-0/+1
| | | | | | | | | | | | | Add support to add an offset to the numgen generated value. Example: ct mark set numgen inc mod 2 offset 100 This will generate marks with serie like 100, 101, 100, ... Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: support ct l3proto/protocol without direction syntaxLiping Zhang2016-10-172-8/+8
| | | | | | | | | | | | | | | Acctually, ct l3proto and ct protocol are unrelated to direction, so it's unnecessary that we must specify dir if we want to use them. Now add support that we can match ct l3proto/protocol without direction: # nft add rule filter input ct l3proto ipv4 # nft add rule filter output ct protocol 17 Note: existing syntax is still preserved, so "ct reply l3proto ipv6" is still fine. Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: use new range expression for != [a,b] intervalsPablo Neira Ayuso2016-10-176-68/+34
| | | | | | | 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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