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>
22static int test_ok = 1;
24static void print_err(
const char *msg)
27 printf(
"\033[31mERROR:\e[0m %s\n", msg);
30static void cmp_nftnl_expr(
struct nftnl_expr *rule_a,
31 struct nftnl_expr *rule_b)
33 uint32_t data_lena, data_lenb;
35 nftnl_expr_get(rule_a, NFTNL_EXPR_CMP_DATA, &data_lena);
36 nftnl_expr_get(rule_b, NFTNL_EXPR_CMP_DATA, &data_lenb);
37 if (data_lena != data_lenb)
38 print_err(
"Size of NFTNL_EXPR_CMP_DATA mismatches");
39 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_CMP_SREG) !=
40 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_CMP_SREG))
41 print_err(
"Expr NFTNL_EXPR_CMP_SREG mismatches");
42 if (nftnl_expr_get_u32(rule_a, NFTNL_EXPR_CMP_OP) !=
43 nftnl_expr_get_u32(rule_b, NFTNL_EXPR_CMP_OP))
44 print_err(
"Expr NFTNL_EXPR_CMP_OP mismatches");
47int main(
int argc,
char *argv[])
49 struct nftnl_rule *a, *b;
50 struct nftnl_expr *ex;
54 struct nftnl_expr *rule_a, *rule_b;
55 uint32_t data_len = 0x01010101;
57 a = nftnl_rule_alloc();
58 b = nftnl_rule_alloc();
59 if (a == NULL || b == NULL)
61 ex = nftnl_expr_alloc(
"cmp");
65 nftnl_expr_set(ex, NFTNL_EXPR_CMP_DATA, &data_len,
sizeof(data_len));
66 nftnl_expr_set_u32(ex, NFTNL_EXPR_CMP_SREG, 0x12345678);
67 nftnl_expr_set_u32(ex, NFTNL_EXPR_CMP_OP, 0x78123456);
69 nftnl_rule_add_expr(a, ex);
71 nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
72 nftnl_rule_nlmsg_build_payload(nlh, a);
74 if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
75 print_err(
"parsing problems");
77 iter_a = nftnl_expr_iter_create(a);
78 iter_b = nftnl_expr_iter_create(b);
79 if (iter_a == NULL || iter_b == NULL)
81 rule_a = nftnl_expr_iter_next(iter_a);
82 rule_b = nftnl_expr_iter_next(iter_b);
83 if (rule_a == NULL || rule_b == NULL)
86 cmp_nftnl_expr(rule_a, rule_b);
88 if (nftnl_expr_iter_next(iter_a) != NULL ||
89 nftnl_expr_iter_next(iter_b) != NULL)
90 print_err(
"More 1 expr.");
92 nftnl_expr_iter_destroy(iter_a);
93 nftnl_expr_iter_destroy(iter_b);
100 printf(
"%s: \033[32mOK\e[0m\n", argv[0]);