nft-chain-test.c
/*
* (C) 2013 by Ana Rey Botello <anarey@gmail.com>
*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <netinet/in.h>
#include <linux/netfilter/nf_tables.h>
#include <libnftnl/chain.h>
static int test_ok = 1;
static void print_err(const char *msg)
{
test_ok = 0;
printf("\033[31mERROR:\e[0m %s\n", msg);
}
static void cmp_nftnl_chain(struct nftnl_chain *a, struct nftnl_chain *b)
{
if (strcmp(nftnl_chain_get_str(a, NFTNL_CHAIN_NAME),
nftnl_chain_get_str(b, NFTNL_CHAIN_NAME)) != 0)
print_err("Chain name mismatches");
if (strcmp(nftnl_chain_get_str(a, NFTNL_CHAIN_TABLE),
nftnl_chain_get_str(b, NFTNL_CHAIN_TABLE)) != 0)
print_err("Chain table mismatches");
if (nftnl_chain_get_u32(a, NFTNL_CHAIN_FAMILY) !=
nftnl_chain_get_u32(b, NFTNL_CHAIN_FAMILY))
print_err("Chain family mismatches");
if (nftnl_chain_get_u32(a, NFTNL_CHAIN_POLICY) !=
nftnl_chain_get_u32(b, NFTNL_CHAIN_POLICY))
print_err("Chain policy mismatches");
if (nftnl_chain_get_u32(a, NFTNL_CHAIN_HOOKNUM) !=
nftnl_chain_get_u32(b, NFTNL_CHAIN_HOOKNUM))
print_err("Chain hooknum mismatches");
if (nftnl_chain_get_s32(a, NFTNL_CHAIN_PRIO) !=
nftnl_chain_get_s32(b, NFTNL_CHAIN_PRIO))
print_err("Chain Prio mismatches");
if (nftnl_chain_get_u32(a, NFTNL_CHAIN_USE) !=
nftnl_chain_get_u32(b, NFTNL_CHAIN_USE))
print_err("Chain use mismatches");
if (nftnl_chain_get_u64(a, NFTNL_CHAIN_PACKETS) !=
nftnl_chain_get_u64(b, NFTNL_CHAIN_PACKETS))
print_err("Chain packets mismatches");
if (nftnl_chain_get_u64(a, NFTNL_CHAIN_BYTES) !=
nftnl_chain_get_u64(b, NFTNL_CHAIN_BYTES))
print_err("Chain bytes mismatches");
if (nftnl_chain_get_u64(a, NFTNL_CHAIN_HANDLE) !=
nftnl_chain_get_u64(b, NFTNL_CHAIN_HANDLE))
print_err("Chain handle mismatches");
if (strcmp(nftnl_chain_get_str(a, NFTNL_CHAIN_TYPE),
nftnl_chain_get_str(b, NFTNL_CHAIN_TYPE)) != 0)
print_err("Chain type mismatches");
if (strcmp(nftnl_chain_get_str(a, NFTNL_CHAIN_DEV),
nftnl_chain_get_str(b, NFTNL_CHAIN_DEV)) != 0)
print_err("Chain device mismatches");
}
int main(int argc, char *argv[])
{
struct nftnl_chain *a, *b;
char buf[4096];
struct nlmsghdr *nlh;
a = nftnl_chain_alloc();
b = nftnl_chain_alloc();
if (a == NULL || b == NULL)
print_err("OOM");
nftnl_chain_set_str(a, NFTNL_CHAIN_NAME, "test");
nftnl_chain_set_u32(a, NFTNL_CHAIN_FAMILY, AF_INET);
nftnl_chain_set_str(a, NFTNL_CHAIN_TABLE, "Table");
nftnl_chain_set_u32(a, NFTNL_CHAIN_POLICY,0x12345678);
nftnl_chain_set_u32(a, NFTNL_CHAIN_HOOKNUM, 0x34567812);
nftnl_chain_set_s32(a, NFTNL_CHAIN_PRIO, 0x56781234);
nftnl_chain_set_u32(a, NFTNL_CHAIN_USE, 0x78123456);
nftnl_chain_set_u64(a, NFTNL_CHAIN_PACKETS, 0x1234567812345678);
nftnl_chain_set_u64(a, NFTNL_CHAIN_BYTES, 0x7812345678123456);
nftnl_chain_set_u64(a, NFTNL_CHAIN_HANDLE, 0x5678123456781234);
nftnl_chain_set_str(a, NFTNL_CHAIN_TYPE, "Prueba");
nftnl_chain_set_str(a, NFTNL_CHAIN_DEV, "eth0");
/* cmd extracted from include/linux/netfilter/nf_tables.h */
nlh = nftnl_chain_nlmsg_build_hdr(buf, NFT_MSG_NEWCHAIN, AF_INET,
0, 1234);
nftnl_chain_nlmsg_build_payload(nlh, a);
if (nftnl_chain_nlmsg_parse(nlh, b) < 0)
print_err("parsing problems");
cmp_nftnl_chain(a, b);
nftnl_chain_free(a);
nftnl_chain_free(b);
if (!test_ok)
exit(EXIT_FAILURE);
printf("%s: \033[32mOK\e[0m\n", argv[0]);
return EXIT_SUCCESS;
}
nftnl_chain
Definition: chain.c:32