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* include: Remove redundant declaration of nftnl_gen_nlmsg_parse()Phil Sutter2019-05-141-1/+0
| | | | | | | | | The duplicated declaration was there since the functions initial introduction as 'nft_gen_nlmsg_parse()'. Fixes: 2e66fb09d6936 ("src: add ruleset generation class") Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: osf: add version option supportFernando Fernandez Mancera2019-04-082-0/+3
| | | | | Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* udata: add NFTNL_UDATA_* definitionsPablo Neira Ayuso2019-02-121-0/+33
| | | | | | | | Place them in the library, so iptables and nftables do not need to redefine them. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Phil Sutter <phil@nwl.cc>
* set_elem: close a padding holeFlorian Westphal2019-02-081-1/+1
| | | | | | 224 -> 216 bytes on x86_64. Signed-off-by: Florian Westphal <fw@strlen.de>
* src: rule: Support NFTA_RULE_POSITION_ID attributePhil Sutter2019-01-283-0/+4
| | | | | Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* Revert "expr: add map lookups for hash statements"Laura Garcia Liebana2019-01-282-4/+4
| | | | | | | | | A better way to implement this from userspace has been found without specific code in the kernel side, revert this. Fixes: bb4b75aea5c0 ("expr: add map lookups for hash statements") Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* Revert "expr: add map lookups for numgen statements"Laura Garcia Liebana2019-01-282-4/+4
| | | | | | | | | A better way to implement this from userspace has been found without specific code in the kernel side, revert this. Fixes: b97f45c2ebaa ("expr: add map lookups for numgen statements") Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> 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 Sutter2018-12-073-0/+42
| | | | | | | 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: remove nftnl_rule_cmp() and nftnl_expr_cmp()Pablo Neira Ayuso2018-10-244-7/+0
| | | | | | | | | | | | | | These functions are not very useful, rule comparison from this layer does not work well with implicit set definitions. This infrastructure was added as an attempt to support for deletion by name from this layer, which should be done from higher level libnftables library. Finally, we never had a client for this code in git.netfilter.org. Let's remove it and bump libversion for safety reasons. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: osf: add ttl option supportFernando Fernandez Mancera2018-10-152-1/+4
| | | | | Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: remove json supportPablo Neira Ayuso2018-10-156-75/+0
| | | | | | We have better json support in libnftables these days. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add support for new secmark objectChristian Göttsche2018-10-093-1/+25
| | | | | | | The new object will hold security context strings. Signed-off-by: Christian Göttsche <cgzones@googlemail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add xfrm supportFlorian Westphal2018-09-212-0/+37
| | | | | | | Joint work with Máté Eckl. Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: rt: ipsec match supportFlorian Westphal2018-09-211-0/+2
| | | | | Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* obj: ct_timeout: fix error in building testsHarsha Sharma2018-09-201-0/+1
| | | | | | | | | Add include header for NFTNL_CTTIMEOUT_ARRAY_MAX. Fixes compilation error "../include/obj.h:43:21: error: ‘NFTNL_CTTIMEOUT_ARRAY_MAX’ undeclared here (not in a function); Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* obj: ct_timeout: use fixed size arrayPablo Neira Ayuso2018-08-312-1/+3
| | | | | | | | | Use an internal array and expose maximum size so we can just use the same array size for all protocol timeouts. This simplifies handling a bit and we don't need to set NFTNL_OBJ_CT_TIMEOUT_L4PROTO in first place. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add ct timeout supportHarsha Sharma2018-08-133-1/+46
| | | | | | | | Add support for ct timeout objects, used to assign connection tracking timeout policies. Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add support for matching tunnel metadataPablo Neira Ayuso2018-08-062-0/+20
| | | | Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* obj: add tunnel supportPablo Neira Ayuso2018-08-063-1/+116
| | | | Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add osf supportFernando Fernandez Mancera2018-07-302-0/+16
| | | | | Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: Add tproxy supportMáté Eckl2018-07-302-0/+22
| | | | | Signed-off-by: Máté Eckl <ecklm94@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* socket: Expose socket mark via socket expressionMáté Eckl2018-07-301-1/+3
| | | | | Signed-off-by: Máté Eckl <ecklm94@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* include: missing C++ linkage in headersPablo Neira Ayuso2018-07-034-0/+32
| | | | | | | | A few files (batch.h / common.h / set.h / udata.h) are missing the usual. Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1268 Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: extend fwd to support address and protocolPablo Neira Ayuso2018-06-062-0/+6
| | | | | | To support forwarding through neighbour layer from ingress. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add connlimit supportPablo Neira Ayuso2018-06-063-1/+26
| | | | Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: Add support for native socket matchingMáté Eckl2018-06-012-0/+30
| | | | | Signed-off-by: Máté Eckl <ecklm94@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* include: updated nf_tables.hMáté Eckl2018-05-291-7/+17
| | | | | | | Joint work with Pablo. Signed-off-by: Máté Eckl <ecklm94@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* rule: add nftnl_rule_list_insert_at()Pablo Neira Ayuso2018-05-281-0/+1
| | | | | | Allow to add rule object before any existing rule. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add map lookups for hash statementsLaura Garcia Liebana2018-05-232-0/+6
| | | | | | | | | | | This patch introduces two new attributes for hash expression to allow map lookups where the hash is the key. The new attributes are NFTNL_EXPR_HASH_SET_NAME and NFTNL_EXPR_HASH_SET_ID in order to identify the given map. Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add map lookups for numgen statementsLaura Garcia Liebana2018-05-082-0/+6
| | | | | | | | | | | This patch introduces two new attributes for numgen to allow map lookups where the number generator will be the key. Two new attributes needs to be included: NFTNL_EXPR_NG_SET_NAME and NFTNL_EXPR_NG_SET_ID in order to identify the given map. Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: support for NFT_CT_{SRC,DST}_{IP,IP6}Pablo Neira Ayuso2018-03-111-2/+10
| | | | Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: parse new handle attribute for objectsHarsha Sharma2018-03-053-0/+4
| | | | | | | | This patch add code to allocate object handles and delete objects via object handles. Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: parse new handle attribute for setsHarsha Sharma2018-03-053-0/+4
| | | | | | | This patch adds code to allocate set handles and delete sets via set handle. Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com>
* src: parse new handle attribute for tablesHarsha Sharma2018-03-052-0/+5
| | | | | | | This patch adds code to parse new handle attribute for tables. Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* flowtable: support for flagsPablo Neira Ayuso2018-03-052-0/+3
| | | | | | This new attribute allows you to specify the flowtable flags. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* flowtable: allow to specify sizePablo Neira Ayuso2018-03-052-0/+6
| | | | | | This new attribute allows you to specify the flowtable size. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* expr: add flow offload expressionPablo Neira Ayuso2018-03-052-0/+15
| | | | | | | This patch adds the new "flow_offload" expression to select what flows are offloaded to an existing flowtable. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: add flowtable supportPablo Neira Ayuso2018-03-053-0/+135
| | | | | | | This patch allows you to add, delete and list flowtable through the existing netlink interface. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* meta: secpath supportFlorian Westphal2018-01-161-0/+2
| | | | Signed-off-by: Florian Westphal <fw@strlen.de>
* expr: Introduce nftnl_expr_fprintf()Phil Sutter2017-10-171-0/+1
| | | | | | | | Implement expression printing into a FILE pointer analogous to nftnl_rule_fprintf(). Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: Change parameters of SNPRINTF_BUFFER_SIZE macro.Varsha Rao2017-09-271-5/+4
| | | | | | | | | SNPRINTF_BUFFER_SIZE() macro declaration and definition is changed so that it accepts three arguments ret, remain and offset. Parameters size and len are not required instead parameter remain keeps track of available space in the buffer. Signed-off-by: Varsha Rao <rvarsha016@gmail.com>
* src: limit stateful object supportPablo M. Bermudo Garay2017-09-043-1/+18
| | | | | | | This patch adds support for a new type of stateful object: limit. Signed-off-by: Pablo M. Bermudo Garay <pablombg@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* rt: tcpmss get supportFlorian Westphal2017-08-211-0/+1
| | | | | Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* exthdr: tcp option set supportFlorian Westphal2017-08-212-1/+4
| | | | | Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: ct eventmask supportFlorian Westphal2017-03-161-0/+2
| | | | | Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: ct helper supportFlorian Westphal2017-03-163-1/+23
| | | | | | | | add support for ct helper objects, these are used to assign helpers to connections, similar to iptables -j CT --set-helper target. Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
* object: extend set/get api for u8/u16 typesFlorian Westphal2017-03-161-0/+4
| | | | | Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>