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* parser: new queue flag input formatFlorian Westphal2021-06-211-4/+3
| | | | Signed-off-by: Florian Westphal <fw@strlen.de>
* segtree: memleak in error path of the set to segtree conversionPablo Neira Ayuso2021-06-181-1/+1
| | | | | | | | | | | Release the array of intervals and the segtree in case of error, otherwise these structures and objects are never released: SUMMARY: AddressSanitizer: 2864 byte(s) leaked in 37 allocation(s). Moreover, improve existing a test coverage of this error path. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* evaluate: unbreak verdict maps with implicit map with interval concatenationsPablo Neira Ayuso2021-06-186-0/+92
| | | | | | | | | | | Verdict maps in combination with interval concatenations are broken, e.g. # nft add rule x y tcp dport . ip saddr vmap { 1025-65535 . 192.168.10.2 : accept } Retrieve the concatenation field length and count from the map->map expressions that represents the key of the implicit map. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: add a icmp-reply only and icmpv6 id test casesFlorian Westphal2021-06-176-0/+123
| | | | | | | | | | | | | | | | | | Check that nft doesn't remove the dependency in these cases: icmp type echo-reply icmp id 1 ("icmp id" matches both echo request and reply). Add icmpv6 test cases. These fail without the previous patches: add rule ip6 test-ip6 input icmpv6 id 1: 'icmpv6 id 1' mismatches 'icmpv6 type { echo-request, echo-reply} icmpv6 parameter-problem 65536/16' add rule ip6 test-ip6 input icmpv6 type echo-reply icmpv6 id 65534': 'icmpv6 type echo-reply icmpv6 id 65534' mismatches 'icmpv6 type echo-reply @th,32,16 65534' Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: shell: cover split chain reference across tablesPablo Neira Ayuso2021-06-142-0/+26
| | | | | | | | Add a test to cover table T1 containing the definition of chain C1, and table T1' (actually the same definition as T1) that contains a (jump) reference to chain C1. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: shell: extend connlimit testPablo Neira Ayuso2021-06-141-0/+12
| | | | | | | | | Extend existing test to add a ct count expression in the set definition. This test cover the upstream kernel fix ad9f151e560b ("netfilter: nf_tables: initialize set before expression setup"). Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* json: tests: add missing concat test caseFlorian Westphal2021-06-141-0/+39
| | | | | | | | | | Fix ERROR: did not find JSON equivalent for rule 'ip saddr . ip daddr { 192.0.2.1 . 10.0.0.1-10.0.0.2 }' when running nft-test.py -j Fixes: bbcc5eda7e58 ("evaluate: restore interval + concatenation in anonymous set") Signed-off-by: Florian Westphal <fw@strlen.de>
* json: tests: fix vlan.t cfi test caseFlorian Westphal2021-06-141-1/+29
| | | | | | | | | | | The test case exists twice, once with new dei, once with old 'cfi', so we need to retain the cfi one in the json file too. Else we get: WARNING: line 2: Wrote JSON equivalent for rule vlan id 4094 vlan dei 1 Fixes: d2fba515ff94 ("src: add vlan dei") Signed-off-by: Florian Westphal <fw@strlen.de>
* evaluate: restore interval + concatenation in anonymous setPablo Neira Ayuso2021-06-115-0/+44
| | | | | | | | | | | | | | | | | | | Perform the table and set lookup only for non-anonymous sets, where the incremental cache update is required. The problem fixed by 7aa08d45031e ("evaluate: Perform set evaluation on implicitly declared (anonymous) sets") resurrected after the cache rework. # nft add rule x y tcp sport . tcp dport vmap { ssh . 0-65535 : accept, 0-65535 . ssh : accept } BUG: invalid range expression type concat nft: expression.c:1422: range_expr_value_low: Assertion `0' failed. Abort Add a test case to make sure this does not happen again. Fixes: 5ec5c706d993 ("cache: add hashtable cache for table") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add vlan deiPablo Neira Ayuso2021-06-114-38/+63
| | | | | | | | | | the CFI bit has been repurposed as DEI "Drop Eligible Indicator" since 802.1Q-2011. The vlan cfi field is still retained for compatibility. Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1516 Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* rule: rework CMD_OBJ_SETELEMS logicPablo Neira Ayuso2021-06-071-0/+14
| | | | | | | | | | | | | | | | | | | Do not clone the set and zap the elements during the set and map expansion to the CMD_OBJ_SETELEMS command. Instead, update the CMD_OBJ_SET command to add the set to the kernel (without elements) and let CMD_OBJ_SETELEMS add the elements. The CMD_OBJ_SET command calls set_to_intervals() to update set->init->size (NFTNL_SET_DESC_SIZE) before adding the set to the kernel. Updating the set size from do_add_setelems() comes too late, it might result in spurious ENFILE errors for interval sets. Moreover, skip CMD_OBJ_SETELEMS if the set definition specifies no elements. Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1500 Fixes: c9eae091983a ("src: add CMD_OBJ_SETELEMS") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: add test case for removal of anon sets with only a single elementFlorian Westphal2021-06-074-1/+64
| | | | | | | | | | | | | Also add a few examples that should not be changed: - anon set with 2 elements - anon map with 1 element - anon set with a concatenation The latter could be done with cmp but this currently triggers 'Error: Use concatenations with sets and maps, not singleton values' after removing the anon set. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: remove redundant test casesFlorian Westphal2021-06-0769-5220/+0
| | | | | | | | | | | | | Check for ... 23-42 ... ... { 23-42 } ... and remove the latter. Followup patch will translate the former to the latter during evaluation step to avoid the unneded anon set. A separate test case will be added that checks for such rewrites. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: ct: prefer normal cmpFlorian Westphal2021-06-073-12/+5
| | | | | | | | Followup patch will replace the { 1.2.3.4 } with single cmp, so this will cause an error when the netlink dump gets compared. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: py: update netdev reject test fileFlorian Westphal2021-06-041-45/+21
| | | | | | | | netdev/reject.t throws a couple of WARNINGs. For some reason this file wasn't updated after the reject statement json output was changed to keep the icmp type/protocol. Signed-off-by: Florian Westphal <fw@strlen.de>
* json: catchall element supportFlorian Westphal2021-06-021-0/+84
| | | | | | | Treat '*' as catchall element, not as a symbol. Also add missing json test cases for wildcard set support. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests/py: fix error messageFlorian Westphal2021-06-021-1/+5
| | | | | | | This should say "should have failed" only if the set add operation was supposed to fail, not when its supposed to work. Signed-off-by: Florian Westphal <fw@strlen.de>
* json: fix parse of flagcmp expressionFlorian Westphal2021-06-021-0/+27
| | | | | | | | | | | | The json test case for the flagcmp notation ('tcp flags syn,fin / syn,fin') fails with: command: {"nftables": [{"add": {"rule": {"family": "ip", "table": "test-ip4", "chain": "input", "expr": [{"match": {"left": {"&": [{"payload": {"field": "flags", "protocol": "tcp"}}, ["fin", "syn"]]}, "op": "==", "right": ["fin", "syn"]}}]}}}]} internal:0:0-0: Error: List expression only allowed on RHS or in statement expression. internal:0:0-0: Error: Failed to parse RHS of binop expression. internal:0:0-0: Error: Invalid LHS of relational. internal:0:0-0: Error: Parsing expr array at index 0 failed. internal:0:0-0: Error: Parsing command array at index 0 failed. Signed-off-by: Florian Westphal <fw@strlen.de>
* exthdr: Implement SCTP Chunk matchingPhil Sutter2021-05-193-0/+670
| | | | | | | | Extend exthdr expression to support scanning through SCTP packet chunks and matching on fixed fields' values. Signed-off-by: Phil Sutter <phil@nwl.cc> Acked-by: Florian Westphal <fw@strlen.de>
* parser_bison: add shortcut syntax for matching flags without binary operationsPablo Neira Ayuso2021-05-162-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the following shortcut syntax: expression flags / flags instead of: expression and flags == flags For example: tcp flags syn,ack / syn,ack,fin,rst ^^^^^^^ ^^^^^^^^^^^^^^^ value mask instead of: tcp flags and (syn|ack|fin|rst) == syn|ack The second list of comma-separated flags represents the mask which are examined and the first list of comma-separated flags must be set. You can also use the != operator with this syntax: tcp flags != fin,rst / syn,ack,fin,rst This shortcut is based on the prefix notation, but it is also similar to the iptables tcp matching syntax. This patch introduces the flagcmp expression to print the tcp flags in this new notation. The delinearize path transforms the binary expression to this new flagcmp expression whenever possible. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: shell: don't assume fixed handle value in cache/0008_delete_by_handle_0Pablo Neira Ayuso2021-05-121-5/+10
| | | | | | | | This test is occasionally reporting warning in one of my test boxes. Update this test to extract the handle from ruleset listing, use rudimentary invocation of the cut command to work around this. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add set element catch-all supportPablo Neira Ayuso2021-05-118-0/+155
| | | | | | | | | | | | | | | | | | | | | | | | | Add a catchall expression (EXPR_SET_ELEM_CATCHALL). Use the asterisk (*) to represent the catch-all set element, e.g. table x { set y { type ipv4_addr counter elements = { 1.2.3.4 counter packets 0 bytes 0, * counter packets 0 bytes 0 } } } Special handling for segtree: zap the catch-all element from the set element list and re-add it after processing. Remove wildcard_expr deadcode in src/parser_bison.y This patch also adds several tests for the tests/py and tests/shell infrastructures. Acked-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: Introduce 0043_concatenated_ranges_1 for subnets of different sizesStefano Brivio2021-05-081-0/+23
| | | | | | | | | | | The report from https://bugzilla.netfilter.org/show_bug.cgi?id=1520 showed a display issue with particular IPv6 mask lengths in elements of sets with concatenations. Make sure we cover insertion and listing of different mask lengths in concatenated set elements for IPv4 and IPv6. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Florian Westphal <fw@strlen.de>
* rule: skip fuzzy lookup for unexisting 64-bit handlePablo Neira Ayuso2021-05-021-0/+8
| | | | | | | | Deletion by handle, if incorrect, should not exercise the misspell lookup functions. Fixes: 3a0e07106f66 ("src: combine extended netlink error reporting with mispelling support") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: unbreak deletion by table handlePablo Neira Ayuso2021-05-021-0/+20
| | | | | | | | | Use NFTA_TABLE_HANDLE instead of NFTA_TABLE_NAME to refer to the table 64-bit unique handle. Fixes: 7840b9224d5b ("evaluate: remove table from cache on delete table") Fixes: f8aec603aa7e ("src: initial extended netlink error reporting") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: shell: remove missing modulesPablo Neira Ayuso2021-05-021-2/+3
| | | | | | | | | | Update run-tests.sh to remove the following modules: - nft_reject_netdev - nft_xfrm - nft_synproxy Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* parser_bison: missing relational operation on flag listPablo Neira Ayuso2021-05-023-0/+27
| | | | | | | | | | | | | | | Complete e6c32b2fa0b8 ("src: add negation match on singleton bitmask value") which was missing comma-separated list of flags. This patch provides a shortcut for: tcp flags and fin,rst == 0 which allows to check for the packet whose fin and rst bits are unset: # nft add rule x y tcp flags not fin,rst counter Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* parser: allow to load stateful ct connlimit elements in setsLaura Garcia Liebana2021-05-021-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a syntax error after loading a nft dump with a set including stateful ct connlimit elements. Having a nft dump as per below: table ip nftlb { set connlimit-set { type ipv4_addr size 65535 flags dynamic elements = { 84.245.120.167 ct count over 20 , 86.111.207.45 ct count over 20 , 173.212.220.26 ct count over 20 , 200.153.13.235 ct count over 20 } } } The syntax error is shown when loading the ruleset. root# nft -f connlimit.nft connlimit.nft:15997:31-32: Error: syntax error, unexpected ct, expecting comma or '}' elements = { 84.245.120.167 ct count over 20 , 86.111.207.45 ct count over 20 , ^^ connlimit.nft:16000:9-22: Error: syntax error, unexpected string 173.212.220.26 ct count over 20 , 200.153.13.235 ct count over 20 } ^^^^^^^^^^^^^^ After applying this patch a kernel panic is raised running nft_rhash_gc() although no packet reaches the set. The following patch [0] should be used as well: 4d8f9065830e5 ("netfilter: nftables: clone set element expression template") Note that the kernel patch will produce the emptying of the connection tracking, so the restore of the conntrack states should be considered. [0]: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git/commit/?id=4d8f9065830e526c83199186c5f56a6514f457d2 Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* proto: replace vlan ether type with 8021qFlorian Westphal2021-04-0315-35/+34
| | | | | | | | | | | | | Previous patches added "8021ad" mnemonic for IEEE 802.1AD frame type. This adds the 8021q shorthand for the existing 'vlan' frame type. nft will continue to recognize 'ether type vlan', but listing will now print 8021q. Adjust all test cases accordingly. Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: add 8021.AD vlan test casesFlorian Westphal2021-04-035-0/+450
| | | | | | | Check nft doesn't remove the explicit '8021ad' type check and that the expected dependency chains are generated. Signed-off-by: Florian Westphal <fw@strlen.de>
* parser: fix scope closure of COUNTER tokenFlorian Westphal2021-03-254-0/+96
| | | | | | | | | It is closed after allocation, which is too early: this stopped 'packets' and 'bytes' from getting parsed correctly. Also add a test case for this. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: shell: fix 0025empty_dynset_0Pablo Neira Ayuso2021-03-241-1/+1
| | | | | | | | Use bash, otherwise it reports here: testcases/nft-f/0025empty_dynset_0: 22: Syntax error: redirection unexpected Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: shell: flowtable add after delete in batchPablo Neira Ayuso2021-03-242-0/+63
| | | | | | Check for bogus EEXIST and EBUSY errors. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* segtree: release single element already contained in an intervalPablo Neira Ayuso2021-03-242-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | Before this patch: table ip x { chain y { ip saddr { 1.1.1.1-1.1.1.2, 1.1.1.1 } } } results in: table ip x { chain y { ip saddr { 1.1.1.1 } } } due to incorrect interval merge logic. If the element 1.1.1.1 is already contained in an existing interval 1.1.1.1-1.1.1.2, release it. Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1512 Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests/py: Fix for missing JSON equivalent in any/ct.t.jsonPhil Sutter2021-03-091-0/+15
| | | | | | | JSON equivalent for recently added test of the '!' shortcut was missing. Fixes: e6c32b2fa0b82 ("src: add negation match on singleton bitmask value") Signed-off-by: Phil Sutter <phil@nwl.cc>
* mnl: Set NFTNL_SET_DATA_TYPE before dumping set elementsPhil Sutter2021-03-0917-148/+148
| | | | | | | | In combination with libnftnl's commit "set_elem: Fix printing of verdict map elements", This adds the vmap target to netlink dumps. Adjust dumps in tests/py accordingly. Signed-off-by: Phil Sutter <phil@nwl.cc>
* tests/py: Adjust payloads for fixed nat statement dumpsPhil Sutter2021-03-0910-31/+31
| | | | | | Libnftnl no longer dumps unused regs, so drop those. Signed-off-by: Phil Sutter <phil@nwl.cc>
* src: allow use of 'verdict' in typeof definitionsFlorian Westphal2021-02-222-0/+8
| | | | | | | | | | | | | | | 'verdict' cannot be used as part of a map typeof-based key definition, its a datatype and not an expression, e.g.: typeof iifname . ip protocol . th dport : verdic ... will fail. Make the parser convert a 'verdict' symbol to a verdict expression and allow to store its presence as part of the typeof key definition. Reported-by: Frank Myhr <fmyhr@fhmtech.com> Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: extend dtype test case to cover expression with integer typeFlorian Westphal2021-02-162-2/+83
| | | | | | | | | ... nft doesn't handle this correctly at the moment: they are added as network byte order (invalid byte order). ct zone has integer_type, the byte order has to be taken from the expression. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: shell: extend 0025empty_dynset_0 to cover multi-statement supportPablo Neira Ayuso2021-02-092-0/+12
| | | | | | Add a test to cover multi-statement support. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add negation match on singleton bitmask valuePablo Neira Ayuso2021-02-052-0/+7
| | | | | | | | | | | | | | | | | This patch provides a shortcut for: ct status and dnat == 0 which allows to check for the packet whose dnat bit is unset: # nft add rule x y ct status ! dnat counter This operation is only available for expression with a bitmask basetype, eg. # nft describe ct status ct expression, datatype ct_status (conntrack status) (basetype bitmask, integer), 32 bits Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: add empty dynamic setFlorian Westphal2021-02-052-0/+28
| | | | | | nft crashes on restore. Signed-off-by: Florian Westphal <fw@strlen.de>
* testcases: move two dump files to correct locationFlorian Westphal2021-02-052-0/+0
| | | | | | | The test cases were moved but the dumps remained in the old location. Fixes: eb14363d44cea5 ("tests: shell: move chain priority and policy to chain folder") Signed-off-by: Florian Westphal <fw@strlen.de>
* tests/py: Add a test sanitizer and fix its findingsPhil Sutter2021-02-0439-780/+160
| | | | | | | | | | | | | | | | This is just basic housekeeping: - Remove duplicate tests in any of the *.t files - Remove explicit output if equal to command itself in *.t files - Remove duplicate payload records in any of the *.t.payload* files - Remove stale payload records (for which no commands exist in the respective *.t file - Remove duplicate/stale entries in any of the *.t.json files In some cases, tests were added instead of removing a stale payload record if it fit nicely into the sequence of tests. Signed-off-by: Phil Sutter <phil@nwl.cc>
* tests/py: Write dissenting payload into the right filePhil Sutter2021-02-041-1/+4
| | | | | | | | | | | | The testsuite supports diverging payloads depending on table family. This is necessary since for some families, dependency matches are created. If a payload mismatch happens, record it into a "got"-file which matches the family-specific payload file, not the common one. This eases use of diff-tools a lot as the extra other families' payloads confuse the tools. Signed-off-by: Phil Sutter <phil@nwl.cc>
* json: Do not abbreviate reject statement objectPhil Sutter2021-02-034-112/+47
| | | | | | | | | No need to reduce output size, also this way output is more predictable. While being at it, drop some pointless chunks from tests/py/bridge/reject.t.json.output. Signed-off-by: Phil Sutter <phil@nwl.cc>
* tests: add icmp/6 test where dependency should be left aloneFlorian Westphal2021-02-016-0/+73
| | | | | | These tests fail: nft should leave the type as-is. Signed-off-by: Florian Westphal <fw@strlen.de>
* json: limit: Always include burst valuePhil Sutter2021-01-271-0/+277
| | | | | | The default burst value is non-zero, so JSON output should include it. Signed-off-by: Phil Sutter <phil@nwl.cc>
* reject: Unify inet, netdev and bridge delinearizationPhil Sutter2021-01-275-196/+292
| | | | | | | | | | | | | | Postprocessing for inet family did not attempt to kill any existing payload dependency, although it is perfectly fine to do so. The mere culprit is to not abbreviate default code rejects as that would drop needed protocol info as a side-effect. Since postprocessing is then almost identical to that of bridge and netdev families, merge them. While being at it, extend tests/py/netdev/reject.t by a few more tests taken from inet/reject.t so this covers icmpx rejects as well. Cc: Jose M. Guisado Gomez <guigom@riseup.net> Signed-off-by: Phil Sutter <phil@nwl.cc>
* reject: Fix for missing dependencies in netdev familyPhil Sutter2021-01-273-21/+184
| | | | | | | | | | | | | | | Like with bridge family, rejecting with either icmp or icmpv6 must create a dependency match on meta protocol. Upon delinearization, treat netdev reject identical to bridge as well so no family info is lost. This makes reject statement in netdev family fully symmetric so fix the tests in tests/py/netdev/reject.t, adjust the related payload dumps and add JSON equivalents which were missing altogether. Fixes: 0c42a1f2a0cc5 ("evaluate: add netdev support for reject default") Fixes: a51a0bec1f698 ("tests: py: add netdev folder and reject.t icmp cases") Cc: Jose M. Guisado Gomez <guigom@riseup.net> Signed-off-by: Phil Sutter <phil@nwl.cc>
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