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path: root/include/libnftnl/chain.h
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* chain: Removed non-defined functionsNicholas Vinson2024-01-081-4/+0
| | | | | | | | | | | | | | | | | | | | | The functions nftnl_chain_parse(), nftnl_chain_parse_file(), nftnl_set_elems_foreach(), and nftnl_obj_unset() are no longer defined and removed from the code. The functions nftnl_chain_parse(), nftnl_chain_parse_file() were removed with commit 80077787f8f2 ("src: remove json support"). The function nftnl_set_elems_foreach() does not appear to have ever been defined. However, libnftnl.map still lists these functions which causes libnftnl to fail to link with ld.lld as the option --undefined-version is disabled by default. Fixes Gentoo bug 914710 (https://bugs.gentoo.org/914710) Signed-off-by: Nicholas Vinson <nvinson234@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* chain: add userdata and comment supportJose M. Guisado Gomez2020-09-301-0/+1
| | | | | | | | | | | | Adds NFTNL_CHAIN_USERDATA, in order to support userdata for chains. Adds NFTNL_UDATA_CHAIN_COMMENT chain userdata type to support storing a comment. Relies on NFTA_CHAIN_USERDATA. Signed-off-by: Jose M. Guisado Gomez <guigom@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add support for chain ID attributePablo Neira Ayuso2020-07-211-0/+1
| | | | | | | his patch allows you to refer to chains via the chain ID. The semantics are similar to the NFTA_RULE_ID attribute. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* chain: add NFTNL_CHAIN_FLAGSPablo Neira Ayuso2020-03-031-0/+1
| | | | | | This patch adds support for chain flags. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add nftnl_*_{get,set}_array()Pablo Neira Ayuso2020-02-191-0/+2
| | | | | | | | | The original intention in eb58f53372e7 ("src: add flowtable support") was to introduce this helper function. Add helper to set and to get array of strings. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Phil Sutter <phil@nwl.cc>
* Deprecate untyped data settersPhil Sutter2019-10-311-1/+1
| | | | | | | | | These functions make assumptions on size of passed data pointer and therefore tend to hide programming mistakes. Instead either one of the type-specific setters or the generic *_set_data() setter should be used. Signed-off-by: Phil Sutter <phil@nwl.cc> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* chain: multi-device supportPablo Neira Ayuso2019-10-281-0/+1
| | | | | | Add support for NFTA_HOOK_DEVS. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: chain: Fix nftnl_chain_rule_insert_at()Phil Sutter2019-01-141-0/+1
| | | | | | | | | | Extrapolating from iptables nomenclature, one would expect that "insert" means to prepend the new item to the referenced one, not append. Change nftnl_chain_rule_insert_at() to do just that and introduce nftnl_chain_rule_append_at() to insert a rule after the referenced one. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: chain: Add missing nftnl_chain_rule_del()Phil Sutter2019-01-141-0/+1
| | | | | | | | | | | Although identical to nftnl_rule_list_del(), this function adheres to the common naming style of per chain rule list routines introduced earlier, therefore helps with deprecating the global rule list API at a later point. Fixes: e33798478176f ("chain: Support per chain rules list") Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* chain: Add lookup functions for chain list and rules in chainPhil Sutter2018-12-071-0/+2
| | | | | | | | | For now, these lookup functions simply iterate over the linked list until they find the right entry. In future, they may make use of more optimized data structures behind the curtains. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* chain: Support per chain rules listPhil Sutter2018-12-071-0/+15
| | | | | | | The implementation basically copies expr_list in struct nftnl_rule. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: get rid of aliases and compatPablo Neira Ayuso2016-12-201-77/+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>
* src: Constify iteratorsCarlos Falgueras García2016-08-101-2/+2
| | | | | | | | Iterators do not modify objects which they iterate, so input pointer must be const. Signed-off-by: Carlos Falgueras García <carlosfg@riseup.net> 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>
* chain: missing constification of _get() functionsPablo Neira Ayuso2016-05-131-8/+8
| | | | | | These functions don't modify the chain object. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* libnftnl: constify object arguments to various functionsPatrick McHardy2016-05-091-4/+4
| | | | | | | | | 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>
* src: get rid of _attr_ infix in new nftnl_ definitionsPablo Neira Ayuso2015-09-071-17/+17
| | | | | | | The function names are already large, trim off the _ATTR_ infix in the attribute definitions. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: get rid of _ATTR_ infix in new nfntl_ definitionsPablo Neira Ayuso2015-09-071-15/+15
| | | | | | | The constant names are already large, trim off the _ATTR_ infix in the attribute definitions. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add compat header file definitionsPablo Neira Ayuso2015-09-071-0/+77
| | | | | | | | | | | 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 Ayuso2015-09-071-55/+55
| | | | | | | | | 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>
* chain: add netdev family supportPablo Neira Ayuso2015-06-161-0/+1
| | | | | | | | | Add support for the new NFT_CHAIN_ATTR_DEV attribute that indicates that the basechain is attached to a net_device. This partially reworks 1dd9ba1ea23c ("table: add netdev family support"). Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add nft_*_attr_{set|get}_data interfacePablo Neira Ayuso2014-02-271-0/+4
| | | | | | | | | | | | 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>
* src: early attribute type validation in nft_*_attr_setPablo Neira Ayuso2014-02-271-0/+2
| | | | | | | | This allows us to remove the default case in the switch, which show help to spot missing attribute support since gcc will spot a compilation warning. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* rename library to libnftnllibnftnl-1.0.0Pablo Neira Ayuso2014-01-201-0/+85
We plan to use this library name for the higher layer library. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>