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/*
* (C) 2012-2013 by Pablo Neira Ayuso <pablo@netfilter.org>
*
* 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 <stdlib.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/netfilter/nfnetlink.h>
#include <libmnl/libmnl.h>
#include <libnftnl/common.h>
#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);
struct nft_parse_err *nft_parse_err_alloc(void)
{
return calloc(1, sizeof(struct nft_parse_err));
}
EXPORT_SYMBOL(nft_parse_err_alloc);
void nft_parse_err_free(struct nft_parse_err *err)
{
xfree(err);
}
EXPORT_SYMBOL(nft_parse_err_free);
int nft_parse_perror(const char *str, struct nft_parse_err *err)
{
switch (err->error) {
case NFT_PARSE_EBADINPUT:
return fprintf(stderr, "%s : Bad input format in line %d column %d\n",
str, err->line, err->column);
case NFT_PARSE_EMISSINGNODE:
return fprintf(stderr, "%s : Node \"%s\" not found\n",
str, err->node_name);
case NFT_PARSE_EBADTYPE:
return fprintf(stderr, "%s: Invalid type in node \"%s\"\n",
str, err->node_name);
default:
return fprintf(stderr, "Undefined error\n");
}
}
EXPORT_SYMBOL(nft_parse_perror);
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