libnftnl 1.2.6
nft-expr_lookup-test.c
1/*
2 * (C) 2013 by Ana Rey Botello <anarey@gmail.com>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 */
10
11#include <stdio.h>
12#include <stdlib.h>
13#include <string.h>
14
15#include <netinet/in.h>
16#include <netinet/ip.h>
17#include <linux/netfilter/nf_tables.h>
18#include <libmnl/libmnl.h>
19#include <libnftnl/rule.h>
20#include <libnftnl/expr.h>
21
22static int test_ok = 1;
23
24static void print_err(const char *msg)
25{
26 test_ok = 0;
27 printf("\033[31mERROR:\e[0m %s\n", msg);
28}
29
30static void cmp_nftnl_expr(struct nftnl_expr *rule_a,
31 struct nftnl_expr *rule_b)
32{
33 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_LOOKUP_SREG) !=
34 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_LOOKUP_SREG))
35 print_err("Expr NFTNL_EXPR_LOOKUP_SREG mismatches");
36 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_LOOKUP_DREG) !=
37 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_LOOKUP_DREG))
38 print_err("Expr NFTNL_EXPR_LOOKUP_DREG mismatches");
39 if (strcmp(nftnl_expr_get_str(rule_a, NFTNL_EXPR_LOOKUP_SET),
40 nftnl_expr_get_str(rule_b, NFTNL_EXPR_LOOKUP_SET)))
41 print_err("Expr NFTNL_EXPR_LOOKUP_SET mismatches");
42 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_LOOKUP_SET_ID) !=
43 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_LOOKUP_SET_ID))
44 print_err("Expr NFTNL_EXPR_LOOKUP_SET_ID mismatches");
45 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_LOOKUP_FLAGS) !=
46 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_LOOKUP_FLAGS)) {
47 print_err("Expr NFTNL_EXPR_LOOKUP_FLAGS mismatches");
48 printf("%X %X\n",
49 nftnl_expr_get_u32(rule_a, NFTNL_EXPR_LOOKUP_FLAGS),
50 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_LOOKUP_FLAGS));
51 }
52}
53
54int main(int argc, char *argv[])
55{
56 struct nftnl_rule *a, *b;
57 struct nftnl_expr *ex;
58 struct nlmsghdr *nlh;
59 char buf[4096];
60 struct nftnl_expr_iter *iter_a, *iter_b;
61 struct nftnl_expr *rule_a, *rule_b;
62 const char *lookup_set = "test_set_01243";
63
64 a = nftnl_rule_alloc();
65 b = nftnl_rule_alloc();
66 if (a == NULL || b == NULL)
67 print_err("OOM");
68 ex = nftnl_expr_alloc("lookup");
69 if (ex == NULL)
70 print_err("OOM");
71
72 nftnl_expr_set_u32(ex, NFTNL_EXPR_LOOKUP_SREG, 0x12345678);
73 nftnl_expr_set_u32(ex, NFTNL_EXPR_LOOKUP_DREG, 0x78123456);
74 nftnl_expr_set_str(ex, NFTNL_EXPR_LOOKUP_SET, lookup_set);
75 nftnl_expr_set_u32(ex, NFTNL_EXPR_LOOKUP_FLAGS, 0x12345678);
76
77 nftnl_rule_add_expr(a, ex);
78
79 nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
80 nftnl_rule_nlmsg_build_payload(nlh, a);
81
82 if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
83 print_err("parsing problems");
84
85 iter_a = nftnl_expr_iter_create(a);
86 iter_b = nftnl_expr_iter_create(b);
87 if (iter_a == NULL || iter_b == NULL)
88 print_err("OOM");
89 rule_a = nftnl_expr_iter_next(iter_a);
90 rule_b = nftnl_expr_iter_next(iter_b);
91 if (rule_a == NULL || rule_b == NULL)
92 print_err("OOM");
93
94 cmp_nftnl_expr(rule_a, rule_b);
95
96 if (nftnl_expr_iter_next(iter_a) != NULL ||
97 nftnl_expr_iter_next(iter_b) != NULL)
98 print_err("More 1 expr.");
99
100 nftnl_expr_iter_destroy(iter_a);
101 nftnl_expr_iter_destroy(iter_b);
102 nftnl_rule_free(a);
103 nftnl_rule_free(b);
104
105 if (!test_ok)
106 exit(EXIT_FAILURE);
107
108 printf("%s: \033[32mOK\e[0m\n", argv[0]);
109
110 return EXIT_SUCCESS;
111}