From d7955867a79e8aed8058a2a69953c6005bb9ef5a Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Sun, 24 Nov 2013 21:01:49 +0100 Subject: src: consolidate netlink build header function Add new function nft_nlmsg_build_hdr which consolidates all existing functions to build headers per object. They basically look the same. This patch still provides aliases for consistency in the naming approach. Signed-off-by: Pablo Neira Ayuso --- src/common.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 src/common.c (limited to 'src/common.c') diff --git a/src/common.c b/src/common.c new file mode 100644 index 0000000..f03e730 --- /dev/null +++ b/src/common.c @@ -0,0 +1,36 @@ +/* + * (C) 2012-2013 by Pablo Neira Ayuso + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published + * by the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include + +#include +#include + +#include "internal.h" + +struct nlmsghdr *nft_nlmsg_build_hdr(char *buf, uint16_t cmd, uint16_t family, + uint16_t type, uint32_t seq) +{ + struct nlmsghdr *nlh; + struct nfgenmsg *nfh; + + nlh = mnl_nlmsg_put_header(buf); + nlh->nlmsg_type = (NFNL_SUBSYS_NFTABLES << 8) | cmd; + nlh->nlmsg_flags = NLM_F_REQUEST | type; + nlh->nlmsg_seq = seq; + + nfh = mnl_nlmsg_put_extra_header(nlh, sizeof(struct nfgenmsg)); + nfh->nfgen_family = family; + nfh->version = NFNETLINK_V0; + nfh->res_id = 0; + + return nlh; +} +EXPORT_SYMBOL(nft_nlmsg_build_hdr); -- cgit v1.2.3