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* udata: add TLV user data infrastructureCarlos Falgueras García2016-04-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These functions allow to create a buffer (struct nftnl_udata_buf) of user data attributes in TLV format (struct nftnl_udata). It is inspired by libmnl/src/attr.c. It can be used to store several TLVs sequentially into an object. Example: struct nftnl_udata_buf *buf; struct nftnl_udata *attr; const char *str = "Hello World!"; buf = nftnl_udata_buf_alloc(UDATA_SIZE); if (!buf) { perror("OOM"); exit(EXIT_FAILURE); } if (!nftnl_udata_put_strz(buf, MY_TYPE, str)) { perror("Can't put attribute \"%s\"", str); exit(EXIT_FAILURE); } nftnl_udata_for_each(buf, attr) printf("%s\n", (char *)nftnl_udata_attr_value(attr)); nftnl_udata_buf_free(buf); Signed-off-by: Carlos Falgueras García <carlosfg@riseup.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: split internal.h is smaller filesPablo Neira Ayuso2015-02-171-2/+13
| | | | | | | | | The internal.h file started being a small file with private definitions. Its size has been increasing over time more and more, so let's split this in small header files that map to the corresponding class where the functions belong to. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* src: consolidate XML/JSON exportationPablo Neira Ayuso2014-11-101-1/+2
| | | | | | | | | | | | | | Add new buffer class to consolidate the existing code to export objects in XML/JSON and use it. We save ~700 LOC with this change. The rule and set objects are not yet consolidated. It seems this would require some specific glue code per representation type since lists are arranged differently. This also consolidates the tag names, so we make sure the same are used from XML and JSON by placing them in include/buffer.h. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* rename library to libnftnllibnftnl-1.0.0Pablo Neira Ayuso2014-01-201-1/+1
| | | | | | We plan to use this library name for the higher layer library. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* initial version of libnftablesPablo Neira Ayuso2012-10-111-0/+3
It adds support for table, chain and rule handling. This also includes expression handling for each rule. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>