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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "firewall-util.h"
#include "log.h"
#include "random-util.h"
#include "tests.h"
#define MAKE_IN_ADDR_UNION(a,b,c,d) (union in_addr_union) { .in.s_addr = htobe32((uint32_t) (a) << 24 | (uint32_t) (b) << 16 | (uint32_t) (c) << 8 | (uint32_t) (d))}
#define MAKE_IN6_ADDR_UNION(str, u) assert_se(in_addr_from_string(AF_INET6, str, u) >= 0)
static void test_v6(FirewallContext **ctx) {
union in_addr_union u = {}, u2 = {};
uint8_t prefixlen;
int r;
MAKE_IN6_ADDR_UNION("dead::beef", &u);
r = fw_add_masquerade(ctx, true, AF_INET6, &u, 128);
if (r < 0)
log_error_errno(r, "Failed to modify ipv6 firewall: %m");
r = fw_add_masquerade(ctx, false, AF_INET6, &u, 128);
if (r < 0)
log_error_errno(r, "Failed to modify ipv6 firewall: %m");
r = fw_add_masquerade(ctx, true, AF_INET6, &u, 64);
if (r < 0)
log_error_errno(r, "Failed to modify ipv6 firewall: %m");
r = fw_add_masquerade(ctx, false, AF_INET6, &u, 64);
if (r < 0)
log_error_errno(r, "Failed to modify ipv6 firewall: %m");
r = fw_add_local_dnat(ctx, true, AF_INET6, IPPROTO_TCP, 4711, &u, 815, NULL);
if (r < 0)
log_error_errno(r, "Failed to modify firewall: %m");
MAKE_IN6_ADDR_UNION("1c3::c01d", &u2);
r = fw_add_local_dnat(ctx, true, AF_INET6, IPPROTO_TCP, 4711, &u2, 815, &u);
if (r < 0)
log_error_errno(r, "Failed to modify firewall: %m");
r = fw_add_local_dnat(ctx, false, AF_INET6, IPPROTO_TCP, 4711, &u2, 815, NULL);
if (r < 0)
log_error_errno(r, "Failed to modify firewall: %m");
prefixlen = random_u32() % (128 + 1 - 8);
prefixlen += 8;
pseudo_random_bytes(&u, sizeof(u));
r = fw_add_masquerade(ctx, true, AF_INET6, &u, prefixlen);
if (r < 0)
log_error_errno(r, "Failed to modify ipv6 firewall: %m");
r = fw_add_masquerade(ctx, false, AF_INET6, &u, prefixlen);
if (r < 0)
log_error_errno(r, "Failed to modify ipv6 firewall: %m");
}
int main(int argc, char *argv[]) {
_cleanup_(fw_ctx_freep) FirewallContext *ctx;
int r;
test_setup_logging(LOG_DEBUG);
uint8_t prefixlen = 32;
r = fw_ctx_new(&ctx);
if (r < 0)
return log_error_errno(r, "Failed to init firewall: %m");
r = fw_add_masquerade(&ctx, true, AF_INET, NULL, 0);
if (r == 0)
log_error("Expected failure: NULL source");
r = fw_add_masquerade(&ctx, true, AF_INET, &MAKE_IN_ADDR_UNION(10,1,2,0), 0);
if (r == 0)
log_error("Expected failure: 0 prefixlen");
r = fw_add_masquerade(&ctx, true, AF_INET, &MAKE_IN_ADDR_UNION(10,1,2,3), prefixlen);
if (r < 0)
log_error_errno(r, "Failed to modify firewall: %m");
prefixlen = 28;
r = fw_add_masquerade(&ctx, true, AF_INET, &MAKE_IN_ADDR_UNION(10,0,2,0), prefixlen);
if (r < 0)
log_error_errno(r, "Failed to modify firewall: %m");
r = fw_add_masquerade(&ctx, false, AF_INET, &MAKE_IN_ADDR_UNION(10,0,2,0), prefixlen);
if (r < 0)
log_error_errno(r, "Failed to modify firewall: %m");
r = fw_add_masquerade(&ctx, false, AF_INET, &MAKE_IN_ADDR_UNION(10,1,2,3), 32);
if (r < 0)
log_error_errno(r, "Failed to modify firewall: %m");
r = fw_add_local_dnat(&ctx, true, AF_INET, IPPROTO_TCP, 4711, &MAKE_IN_ADDR_UNION(1, 2, 3, 4), 815, NULL);
if (r < 0)
log_error_errno(r, "Failed to modify firewall: %m");
r = fw_add_local_dnat(&ctx, true, AF_INET, IPPROTO_TCP, 4711, &MAKE_IN_ADDR_UNION(1, 2, 3, 4), 815, NULL);
if (r < 0)
log_error_errno(r, "Failed to modify firewall: %m");
r = fw_add_local_dnat(&ctx, true, AF_INET, IPPROTO_TCP, 4711, &MAKE_IN_ADDR_UNION(1, 2, 3, 5), 815, &MAKE_IN_ADDR_UNION(1, 2, 3, 4));
if (r < 0)
log_error_errno(r, "Failed to modify firewall: %m");
r = fw_add_local_dnat(&ctx, false, AF_INET, IPPROTO_TCP, 4711, &MAKE_IN_ADDR_UNION(1, 2, 3, 5), 815, NULL);
if (r < 0)
log_error_errno(r, "Failed to modify firewall: %m");
test_v6(&ctx);
return 0;
}
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