10#include <netinet/in.h>
11#include <netinet/ip.h>
12#include <linux/netfilter/nf_tables.h>
13#include <libmnl/libmnl.h>
14#include <libnftnl/rule.h>
15#include <libnftnl/expr.h>
17static int test_ok = 1;
19static void print_err(
const char *msg)
22 printf(
"\033[31mERROR:\e[0m %s\n", msg);
25static void cmp_nftnl_expr(
struct nftnl_expr *rule_a,
26 struct nftnl_expr *rule_b)
28 uint32_t data_lena, data_lenb;
30 nftnl_expr_get(rule_a, NFTNL_EXPR_CMP_DATA, &data_lena);
31 nftnl_expr_get(rule_b, NFTNL_EXPR_CMP_DATA, &data_lenb);
32 if (data_lena != data_lenb)
33 print_err(
"Size of NFTNL_EXPR_CMP_DATA mismatches");
34 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_CMP_SREG) !=
35 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_CMP_SREG))
36 print_err(
"Expr NFTNL_EXPR_CMP_SREG mismatches");
37 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_CMP_OP) !=
38 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_CMP_OP))
39 print_err(
"Expr NFTNL_EXPR_CMP_OP mismatches");
42int main(
int argc,
char *argv[])
44 struct nftnl_rule *a, *b;
45 struct nftnl_expr *ex;
49 struct nftnl_expr *rule_a, *rule_b;
50 uint32_t data_len = 0x01010101;
52 a = nftnl_rule_alloc();
53 b = nftnl_rule_alloc();
54 if (a == NULL || b == NULL)
56 ex = nftnl_expr_alloc(
"cmp");
60 nftnl_expr_set(ex, NFTNL_EXPR_CMP_DATA, &data_len,
sizeof(data_len));
61 nftnl_expr_set_u32(ex, NFTNL_EXPR_CMP_SREG, 0x12345678);
62 nftnl_expr_set_u32(ex, NFTNL_EXPR_CMP_OP, 0x78123456);
64 nftnl_rule_add_expr(a, ex);
66 nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
67 nftnl_rule_nlmsg_build_payload(nlh, a);
69 if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
70 print_err(
"parsing problems");
72 iter_a = nftnl_expr_iter_create(a);
73 iter_b = nftnl_expr_iter_create(b);
74 if (iter_a == NULL || iter_b == NULL)
76 rule_a = nftnl_expr_iter_next(iter_a);
77 rule_b = nftnl_expr_iter_next(iter_b);
78 if (rule_a == NULL || rule_b == NULL)
81 cmp_nftnl_expr(rule_a, rule_b);
83 if (nftnl_expr_iter_next(iter_a) != NULL ||
84 nftnl_expr_iter_next(iter_b) != NULL)
85 print_err(
"More 1 expr.");
87 nftnl_expr_iter_destroy(iter_a);
88 nftnl_expr_iter_destroy(iter_b);
95 printf(
"%s: \033[32mOK\e[0m\n", argv[0]);