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* tests: redirect: fix tests for upcoming nft-test.py fixFlorian Westphal2018-04-013-5/+5
| | | | | | | 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 Westphal2018-03-282-4/+37
| | | | | | | | | | | | | | | | | 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 Westphal2018-03-271-0/+11
| | | | | | | | 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 Westphal2018-03-173-0/+44
| | | | | | they fail with 'BUG: invalid binary operation 5'. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: add srh test casesFlorian Westphal2018-03-172-0/+86
| | | | 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 Ayuso2017-11-242-4/+4
| | | | | | | 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 Ayuso2017-11-242-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | 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>
* 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/+1
| | | | | | | | | | 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: fix up meta l4proto change for ip6 familyFlorian Westphal2017-05-198-134/+134
| | | | | | | | | | | | After previous commit nft generates meta l4proto for ipv6 dependencies instead of checking the (first) nexthdr value. This fixes up all tests cases accordingly except one which fails with ip6/reject.t: ... 12: 'ip6 nexthdr 6 reject with tcp reset' mismatches 'meta l4proto 6 reject with tcp reset' This will be fixed by removing the implicit dependency in a followup patch. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: add ip reject with tcp and check for mark tooFlorian Westphal2017-05-182-2/+4
| | | | | | | ... to avoid resetting e.g. the ssh session to the vm that runs nft-test.py. Signed-off-by: Florian Westphal <fw@strlen.de>
* netlink_delinearize: reject: remove dependency for tcp-resetsFlorian Westphal2017-05-181-1/+1
| | | | | | We can remove a l4 dependency in ip/ipv6 families. Signed-off-by: Florian Westphal <fw@strlen.de>
* proto: Add some exotic ICMPv6 typesPhil Sutter2017-03-202-3/+39
| | | | | | | | | | | | | | | This adds support for matching on inverse ND messages as defined by RFC3122 (not implemented in Linux) and MLDv2 as defined by RFC3810. Note that ICMPV6_MLD2_REPORT macro is defined in linux/icmpv6.h but including that header leads to conflicts with symbols defined in netinet/icmp6.h. In addition to the above, "mld-listener-done" is introduced as an alias for "mld-listener-reduction". Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: Adjust for changed exthdr debug outputPhil Sutter2017-03-131-12/+12
| | | | | | | | Debug output from libnftnl has changed to include 'present' keyword if NFT_EXTHDR_F_PRESENT flag is set in expression. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* exthdr: Implement existence checkPhil Sutter2017-03-102-0/+79
| | | | | | | | | | | This allows to check for existence of an IPv6 extension or TCP option header by using the following syntax: | exthdr frag exists | tcpopt window exists Signed-off-by: Phil Sutter <phil@nwl.cc> 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: Add basic tests for ip, ip6 and inetManuel Messner2017-02-122-0/+218
| | | | | Signed-off-by: Manuel Messner <mm@skelett.io> Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: py: Use stateless option on testsElise Lennion2017-01-185-8/+8
| | | | | | | | | | | 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 Ayuso2016-12-142-18/+18
| | | | | | Include new consumed field for quota, and check for csum_flags in payload. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests/py: Unmask negative set lookupAnatole Denis2016-11-2924-58/+1043
| | | | | | | | 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: missing range conversion in icmpv6Pablo Neira Ayuso2016-11-141-2/+1
| | | | | | Use range expression to negate ranges. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: py: add some testcases for log flagsPablo Neira Ayuso2016-11-141-3/+3
| | | | | | | Remove null and zero flags from tests, to reduce the noise when running tests. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* netlink_linearize: skip set element expression in flow table keyPablo Neira Ayuso2016-10-312-0/+22
| | | | | | | | | | | | | | | | | | | | | Anders reports that: # nft add rule ip6 filter postrouting \ flow table acct_out \{ meta iif . ip6 saddr timeout 600s counter \} while the opposite doesn't work: # nft add rule ip6 filter postrouting \ flow table acct_out \{ ip6 saddr . meta iif timeout 600s counter \} netlink_gen_flow_stmt() relies on the flow table key, that is expressed as a set element. Use the set element key instead to skip the set element wrap, otherwise get_register() abort execution: nft: netlink_linearize.c:650: netlink_gen_expr: Assertion `dreg < ctx->reg_low' failed. Reported-by: Anders K. Pedersen <akp@cohaesio.com> 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: use new range expression for != [a,b] intervalsPablo Neira Ayuso2016-10-1713-82/+41
| | | | | | | 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>
* tests: py: replace "eth0" with "lo" in dup expr testsLiping Zhang2016-09-122-6/+6
| | | | | | | | | | | | | | This patch follow up on Manuel's commit a8871ba6daa0 ("tests: py: any: Make tests more generic by using other interfaces"). The ifindex of "eth0" is not always 1, furthermore, "eth0" maybe not exist on some systems. So replace it with "lo" will make tests more rubost. In other test cases, "eth0" is used by iifname or oifname, so there's no need to convert it to "lo". Even if "eth0" is not exist, test will never fail. Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com> Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: py: adapt it to new add element command semanticsPablo Neira Ayuso2016-08-291-2/+2
| | | | | | | | Since fd33d96 ("src: create element command"), add element doesn't fail anymore if the element exists, you have to use create instead in case you want to check if the element already exists. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* parser_bison: redirect to :port for consistency with nat/masq statementPablo Neira Ayuso2016-08-182-16/+16
| | | | | | | Use the colon port syntax for consistency with other statements. Existing syntax is still preserved but the output displays the colon. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: support for RFC2732 IPv6 address format with bracketsPablo Neira Ayuso2016-08-184-8/+19
| | | | | | | | | | | | | | The statement: dnat to 2001:838:35f:1:::80 is very confusing as it is not so easy to identify where address ends and the port starts. This even harder to read with ranges. So this patch adds squared brackets as RFC2732 to enclose the IPv6 address. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add 'to' for snat and dnatPablo Neira Ayuso2016-08-184-8/+8
| | | | | | | | | | | This is extra syntaxtic sugar to get this consistent with other statements such as redirect, masquerade, dup and fwd that indicates where to go. Existing syntax is still preserved, but the listing shows the one including 'to'. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: quote user-defined strings when used from rule selectorsPablo Neira Ayuso2016-08-185-34/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The following selectors display strings using quotes: * meta iifname * meta oifname * meta ibriport * meta obriport However, the following do not: * meta oif * meta iif * meta skuid * meta skgid * meta iifgroup * meta oifgroup * meta rtclassid * ct label Given they refer to user-defined values, neither keywords nor internal built-in known values, let's quote the output of this. This patch modifies symbolic_constant_print() so we can signal this to indicate if the string needs to be quoted. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: ip6 dscp, flowlabel and ecn test casesFlorian Westphal2016-08-013-0/+140
| | | | Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: add ether payload set testFlorian Westphal2016-07-221-0/+1
| | | | | | ... and fix missing line in ip6 test. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: add basic payload testsFlorian Westphal2016-07-213-0/+33
| | | | | | | | | | payload set operations should work at least for byte-sized quantities >= 2 byte. Before adding support for odd-sized writes (ecn, dscp, ip6 flowlabel ...) add a bunch of tests to cover current state. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests/py: add tests for frag more-fragments and frag reserved2Pablo Neira Ayuso2016-05-133-21/+44
| | | | | | | While at it, get rid of bug comments on ip6/frag.t, since they are not valid anymore. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests/py: update for changed set name in payloadPablo Neira Ayuso2016-05-1320-717/+717
| | | | | | | Original patch posted in the mailing list from Patrick, I have refreshed this so it applies on top of current HEAD. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests/py: fix fragment-offset fieldPablo Neira Ayuso2016-05-112-4/+4
| | | | | | | | | | | | | | | | | Set elements were miscalculated. After this patch: element 00000801 : 0 [end] ^^^^ Which looks correct according to my calculations: >>> print hex(socket.htons(33 << 3)) 0x801 ^^^^^ Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add dscp supportPablo Neira Ayuso2016-05-113-0/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This supports both IPv4: # nft --debug=netlink add rule filter forward ip dscp cs1 counter ip filter forward [ payload load 1b @ network header + 1 => reg 1 ] [ bitwise reg 1 = (reg=1 & 0x000000fc ) ^ 0x00000000 ] [ cmp neq reg 1 0x00000080 ] [ counter pkts 0 bytes 0 ] And also IPv6, note that in this case we take two bytes from the payload: # nft --debug=netlink add rule ip6 filter input ip6 dscp cs4 counter ip6 filter input [ payload load 2b @ network header + 0 => reg 1 ] [ bitwise reg 1 = (reg=1 & 0x0000c00f ) ^ 0x00000000 ] [ cmp eq reg 1 0x00000008 ] [ counter pkts 0 bytes 0 ] Given the DSCP is split in two bytes, the less significant nibble of the first byte and the two most significant 2 bits of the second byte. The 8 bit traffic class in RFC2460 after the version field are used for DSCP (6 bit) and ECN (2 bit). Support for ECN comes in a follow up patch. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* proto: remove priority field definition from IPv6 headerPablo Neira Ayuso2016-05-111-8/+0
| | | | | | This is actually part of the traffic class field according to RFC2460. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* proto: update IPv6 flowlabel offset and length according to RFC2460Pablo Neira Ayuso2016-05-112-0/+8
| | | | | | This is a 20 bit field according to Section 3. IPv6 Header Format. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests/py: add interval testsPablo Neira Ayuso2016-04-271-0/+11
| | | | | | Add some initial tests to cover dynamic interval sets. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests/py: explicitly indication of set type and flags from test definitionsPablo Neira Ayuso2016-04-271-5/+5
| | | | | | | | | This patch adds explicit set type in test definitions, as well as flags. This has triggered a rework that starts by introducing a Set class to make this whole code more extensible and maintainable. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* payload: only merge if adjacent and combined size fits into a registerFlorian Westphal2016-04-193-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | add rule ip6 filter input ip6 saddr ::1/128 ip6 daddr ::1/128 fails, we ask to compare a 32byte immediate which is not supported: [ payload load 32b @ network header + 8 => reg 1 ] [ cmp eq reg 1 0x00000000 0x00000000 0x00000000 0x01000000 0x00000000 0x00000000 0x00000000 0x02000000 ] We would need to use two cmps in this case, i.e.: [ payload load 32b @ network header + 8 => reg 1 ] [ cmp eq reg 1 0x00000000 0x00000000 0x00000000 0x01000000 ] [ cmp eq reg 2 0x00000000 0x00000000 0x00000000 0x02000000 ] Seems however that this requires a bit more changes to how nft handles register allocations, we'd also need to undo the constant merge. Lets disable merging for now so that we generate [ payload load 16b @ network header + 8 => reg 1 ] [ cmp eq reg 1 0x00000000 0x00000000 0x00000000 0x01000000 ] [ payload load 16b @ network header + 24 => reg 1 ] [ cmp eq reg 1 0x00000000 0x00000000 0x00000000 0x02000000 ] ... if merge would bring us over the 128 bit register size. Closes: http://bugzilla.netfilter.org/show_bug.cgi?id=1032 Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: frag: enable more testsFlorian Westphal2016-03-103-3/+49
| | | | | | a couple of tests were disabled since nft did not support this. Signed-off-by: Florian Westphal <fw@strlen.de>
* tests: frag: enable more testsFlorian Westphal2016-03-103-4/+72
| | | | | Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests/py: extend masquerade to cover ports tooPablo Neira Ayuso2016-03-032-0/+19
| | | | | | Tests new masquerade port range support (available since 4.6-rc). Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* tests: add/fix inet+exthdr testsFlorian Westphal2016-03-025-0/+327
| | | | | | | | exhdr needs to be treated as if we'd test an ipv6 header field, i.e. inet, bridge, netdev need to add a dependency on ipv6 protocol. Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* evaluate: enforce ip6 proto with exthdr expressionFlorian Westphal2016-03-022-0/+172
| | | | | | | | | | | | | | Don't allow use of exthdr with e.g. ip family. Move frag.t to ip6 directory and don't use it with ipv4 anymore. This change causes major test failures for all exthdr users since they now fail with inet/bridge/netdev families. Will be resolved in a later patch -- we need to add an ipv6 dependency for them. Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* proto: use parameter-problem for icmpv6 typePablo Neira Ayuso2016-02-012-0/+9
| | | | | | | To keep it consistent with icmpv4 naming. Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=911 Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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