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test-firewall-util: skip if iptables nat table does not exist

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This commit is contained in:
Anita Zhang 2021-04-02 02:49:37 -07:00 committed by Zbigniew Jędrzejewski-Szmek
parent 9d5ae3a121
commit afbcd90552
3 changed files with 27 additions and 6 deletions
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25
src/shared/firewall-util-iptables.c
View File

@ -102,9 +102,9 @@ int fw_iptables_add_masquerade(
if (!source || source_prefixlen == 0)
return -EINVAL;
h = iptc_init("nat");
if (!h)
return -errno;
r = fw_iptables_init_nat(&h);
if (r < 0)
return r;
sz = XT_ALIGN(sizeof(struct ipt_entry)) +
XT_ALIGN(sizeof(struct ipt_entry_target)) +
@ -192,9 +192,9 @@ int fw_iptables_add_local_dnat(
if (remote_port <= 0)
return -EINVAL;
h = iptc_init("nat");
if (!h)
return -errno;
r = fw_iptables_init_nat(&h);
if (r < 0)
return r;
sz = XT_ALIGN(sizeof(struct ipt_entry)) +
XT_ALIGN(sizeof(struct ipt_entry_match)) +
@ -348,3 +348,16 @@ int fw_iptables_add_local_dnat(
return 0;
}
int fw_iptables_init_nat(struct xtc_handle **ret) {
_cleanup_(iptc_freep) struct xtc_handle *h = NULL;
h = iptc_init("nat");
if (!h)
return log_debug_errno(errno, "Failed to init \"nat\" table: %s", iptc_strerror(errno));
if (ret)
*ret = TAKE_PTR(h);
return 0;
}

3
src/shared/firewall-util-private.h
View File

@ -46,6 +46,7 @@ int fw_nftables_add_local_dnat(
const union in_addr_union *previous_remote);
#if HAVE_LIBIPTC
struct xtc_handle;
int fw_iptables_add_masquerade(
bool add,
@ -61,4 +62,6 @@ int fw_iptables_add_local_dnat(
const union in_addr_union *remote,
uint16_t remote_port,
const union in_addr_union *previous_remote);
int fw_iptables_init_nat(struct xtc_handle **ret);
#endif

5
src/test/test-firewall-util.c
View File

@ -102,6 +102,11 @@ int main(int argc, char *argv[]) {
if (ctx->backend == FW_BACKEND_NONE)
return EXIT_TEST_SKIP;
#if HAVE_LIBIPTC
if (ctx->backend == FW_BACKEND_IPTABLES && fw_iptables_init_nat(NULL) < 0)
return EXIT_TEST_SKIP;
#endif
if (test_v4(ctx) && ctx->backend == FW_BACKEND_NFTABLES)
test_v6(ctx);