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path: root/include/libnftnl/expr.h
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* exthdr: Add support for exthdr flagsPhil Sutter2017-02-151-0/+1
| | | | | | | | Along with the actual support for exthdr expression specific flags, this also declares NFT_EXTHDR_F_PRESENT used for exthdr existence match. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add TCP option matching requirementsManuel Messner2017-02-121-0/+1
| | | | | | | This patch is a requirement of the TCP option patch. Signed-off-by: Manuel Messner <mm@skelett.io> Signed-off-by: Florian Westphal <fw@strlen.de>
* src: get rid of aliases and compatPablo Neira Ayuso2016-12-201-176/+0
| | | | | | | | | | | This machinery was introduced to avoid sudden compilation breakage of old nftables releases. With the upcoming release of 0.7 (and 0.6 which is now 6 months old) this is not required anymore. Moreover, users gain nothing from older releases since they are half-boiled and buggy. So let's get rid of aliases now. Bump LIBVERSION and update map file. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* quota: support for consumed bytesPablo Neira Ayuso2016-12-091-0/+1
| | | | | | This patch extends the quota support to account for consumed bytes. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: objref: add support for stateful object mapsPablo Neira Ayuso2016-12-091-0/+3
| | | | | | | | If the NFT_SET_OBJECT flag is set, then this set stores a mapping between any random user-defined arbitrary key and one stateful object. Very useful for performance lookups. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add stateful object reference expressionPablo Neira Ayuso2016-12-091-0/+5
| | | | | | | This patch adds a new "objref" expression that you can use to refer to stateful objects from rules. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: payload: add NFTNL_EXPR_PAYLOAD_FLAGSPablo Neira Ayuso2016-12-041-0/+1
| | | | | | So we can include the new NFT_PAYLOAD_L4CSUM_PSEUDOHDR flag. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add fib expressionFlorian Westphal2016-10-281-0/+6
| | | | | | | | | Allows to query fib for output interface and route type of a packets source or destination address. Scheduled for Linux 4.10. Signed-off-by: Florian Westphal <fw@strlen.de>
* src: introduce rt expressionAnders K. Pedersen2016-10-281-0/+10
| | | | | | | | Introduce support for rt expression for routing related data as implemented in kernel. Signed-off-by: Anders K. Pedersen <akp@cohaesio.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add range expressionPablo Neira Ayuso2016-10-131-0/+7
| | | | | | | | Add range expression available that is scheduled for linux kernel 4.9. This range expression allows us to check if a given value placed in a register is within/outside a specified interval. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: queue: add NFTA_QUEUE_SREG_QNUM attr supportLiping Zhang2016-09-221-0/+1
| | | | | | | | | | After adding _SREG_QNUM attr, queuenum is not must option anymore, so we must test NFTNL_EXPR_QUEUE_NUM first before dumpping queue num in snprintf_default. Also add a tailing space in snprintf_default, this is consistent with other expressions. Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: numgen: add number generation offsetLaura Garcia Liebana2016-09-221-0/+1
| | | | | | | | | | | | | | | | Add support to pass through an offset value to the counter initialization. With this feature, the sysadmin is able to apply a value to be added to the generated number. Example: meta mark set numgen inc mod 2 offset 100 This will generate marks with series 100, 101, 100, 101, ... Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: hash: Add offset to hash valueLaura Garcia Liebana2016-09-121-0/+1
| | | | | | | | | | | | | | | | Add support to pass through an offset to the hash value. With this feature, the sysadmin is able to generate a hash with a given started value. Example: meta mark set jhash ip saddr mod 2 seed 0xabcd offset 100 This option generates marks according to the source address from 100 to 101. Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: numgen: Rename until attribute by modulusLaura Garcia Liebana2016-09-071-1/+1
| | | | | | | | | | | The _modulus_ attribute will be reused as _until_, as it's similar to other expressions with value limits (ex. hash). Renaming is possible according to the kernel module ntf_numgen that has not been released yet. Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add number generation expressionLaura Garcia Liebana2016-08-221-0/+6
| | | | | | | Support for the nft ng expression within libnftnl. Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add quota expressionPablo Neira Ayuso2016-08-221-0/+5
| | | | | | This patch adds support for the new quota expression. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: Implement rule comparisonCarlos Falgueras García2016-08-171-0/+2
| | | | | | | | | | | | | | | | | | | | This patch implements the function: bool nftnl_rule_cmp(const struct nftnl_rule *r1, const struct nftnl_rule *r2) for rule comparison. Expressions within rules need to be compared, so also has been created the function: bool nftnl_expr_cmp(const struct nftnl_expr *e1, const struct nftnl_expr *e2); Also includes all expression comparators. Signed-off-by: Carlos Falgueras García <carlosfg@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add hash expressionLaura Garcia Liebana2016-08-171-0/+8
| | | | | | | Support for the nft hash expression in libnftnl. Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: lookup: give support for inverted matchingArturo Borrero2016-06-241-0/+1
| | | | | | | | Inverted matching support was included in the kernel, let's give support here as well. Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: return value on setters that internally allocate memoryPablo Neira Ayuso2016-06-151-2/+2
| | | | | | | | So the client can bail out of memory allocation errors. Or in case of daemon, make sure things are left in consistent state before bailing out. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* libnftnl: constify object arguments to various functionsPatrick McHardy2016-05-091-2/+2
| | | | | | | | | flow table support needs constant object arguments to printing functions to avoid ugly casts. While at it, also constify object arguments to message construction, destructor and a few helper functions. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: masq: Add support for port selectionShivani Bhardwaj2016-03-031-1/+3
| | | | | | | Complete masquerading support by allowing port range selection. Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add forward expressionPablo Neira Ayuso2016-02-011-0/+4
| | | | | | Add forward expression for the netdev family. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: limit: add support for flagsPablo Neira Ayuso2016-01-131-0/+1
| | | | | | | This patch adds the limit flags, the first client of this is the inversion flag that allows us to match overlimit. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* payload: add payload mangling supportPatrick McHardy2015-11-251-0/+6
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* expr: add dup expression supportPablo Neira Ayuso2015-09-211-0/+5
| | | | Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: limit: add per-byte limiting supportPablo Neira Ayuso2015-09-211-0/+1
| | | | Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: limit: add burst attributePablo Neira Ayuso2015-09-211-0/+1
| | | | Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: rename NFTNL_RULE_EXPR_ATTR to NFTNL_EXPR_Pablo Neira Ayuso2015-09-071-25/+25
| | | | | | So we get a shorter constant definition for expression attributes. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: rename nftnl_rule_expr to nftnl_exprPablo Neira Ayuso2015-09-071-19/+19
| | | | | | | Use a shorter name for this, morever this can be used from sets so the _rule_ is misleading. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add compat header file definitionsPablo Neira Ayuso2015-09-071-0/+168
| | | | | | | | | | | This patch restores the original nft_* definitions from the header files to avoid sudden compilation breakage of the existing clients of this library. Then, moving forward the idea is to deprecate the old nft_* symbols anytime soon using __attribute__((deprecated)) from the header files to warn our users that they need to update their code. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: rename existing functions to use the nftnl_ prefixPablo Neira Ayuso2015-09-071-96/+96
| | | | | | | | | So we can use the nft_* prefix anytime soon for our upcoming higher level library. After this patch, the nft_* symbols become an alias of the nftnl_* symbols. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* dynset: support expression templatesPatrick McHardy2015-04-141-0/+1
| | | | | | | Support expression templates for the dynset expression for dynamic expression instantiation. Signed-off-by: Patrick McHardy <kaber@trash.net>
* expr: seperate expression parsing and building functionsPatrick McHardy2015-04-141-4/+0
| | | | | | | | | | | | The expression build function currently assumes to be only used from rule context and actually builds rule attributes. Fix that and only build the expression. Also it seems to have been exported by accident, undo that. Additionally, move the expression parsing function from rule parsing and also remove any assumptions about being used in rule context. Signed-off-by: Patrick McHardy <kaber@trash.net>
* expr: add support for the dynset exprPatrick McHardy2015-04-121-0/+9
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* src: add support for nft_redir expressionArturo Borrero2014-10-301-0/+6
| | | | | | | This patch adds support for the new nft_redir expression. Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add new nft_masq expressionArturo Borrero2014-09-091-0/+5
| | | | | | | | This patch adds userspace support to nft_masq, the new expression to perform masquerade. Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: nat: add support for the new flags attributeArturo Borrero2014-09-091-0/+1
| | | | | | | This patchs adds support for the new flags attribute in the nft_nat expression. Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
* expr: log: add support for level and flagsPablo Neira Ayuso2014-07-011-0/+2
| | | | | | This is required by changes scheduled for Linux kernel 3.17. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* set: add set ID supportPablo Neira Ayuso2014-05-191-0/+1
| | | | | | | Add the set ID (u32) which allows us to uniquely identify the set in the batch that is sent to kernel-space. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add nft_*_attr_{set|get}_data interfacePablo Neira Ayuso2014-02-271-0/+2
| | | | | | | | | | | | This patch adds two functions that allows you to validate the size of the attribute. This new functions provide a replacement for nft_rule_attr_set and nft_rule_attr_get. The data_len parameter was already passed to the {_set|_get} funcion in expressions. For consistency, add nft_rule_expr_{set|get}_data alias. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* Merge branch 'master' into next-3.14Pablo Neira Ayuso2014-02-031-0/+7
| | | | | | | | | | | | | | | | | This patch includes changes to adapt this branch to the library rename that happened in the master branch. Conflicts: src/Makefile.am src/expr/cmp.c src/expr/ct.c src/expr/data_reg.c src/expr/meta.c tests/jsonfiles/01-table.json tests/jsonfiles/02-table.json tests/jsonfiles/64-ruleset.json tests/xmlfiles/01-table.xml tests/xmlfiles/02-table.xml
* rename library to libnftnllibnftnl-1.0.0Pablo Neira Ayuso2014-01-201-0/+150
We plan to use this library name for the higher layer library. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>