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-rw-r--r--src/test/test-local-addresses.c283
1 files changed, 269 insertions, 14 deletions
diff --git a/src/test/test-local-addresses.c b/src/test/test-local-addresses.c
index 5a02465..f418f37 100644
--- a/src/test/test-local-addresses.c
+++ b/src/test/test-local-addresses.c
@@ -1,20 +1,25 @@
/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/* Make sure the net/if.h header is included before any linux/ one */
+#include <net/if.h>
+#include <linux/if.h>
#include <stdio.h>
#include "af-list.h"
#include "alloc-util.h"
+#include "capability-util.h"
#include "in-addr-util.h"
#include "local-addresses.h"
+#include "netlink-util.h"
#include "tests.h"
-static void print_local_addresses(struct local_address *a, unsigned n) {
- for (unsigned i = 0; i < n; i++) {
- _cleanup_free_ char *b = NULL;
+static bool support_rta_via = false;
- assert_se(in_addr_to_string(a[i].family, &a[i].address, &b) >= 0);
- log_debug("%s if%i scope=%i metric=%u address=%s", af_to_name(a[i].family), a[i].ifindex, a[i].scope, a[i].metric, b);
- }
+static void print_local_addresses(const struct local_address *a, size_t n) {
+ FOREACH_ARRAY(i, a, n)
+ log_debug("%s ifindex=%i scope=%u priority=%"PRIu32" weight=%"PRIu32" address=%s",
+ af_to_name(i->family), i->ifindex, i->scope, i->priority, i->weight,
+ IN_ADDR_TO_STRING(i->family, &i->address));
}
TEST(local_addresses) {
@@ -24,50 +29,300 @@ TEST(local_addresses) {
n = local_addresses(NULL, 0, AF_INET, &a);
assert_se(n >= 0);
log_debug("/* Local Addresses(ifindex:0, AF_INET) */");
- print_local_addresses(a, (unsigned) n);
+ print_local_addresses(a, n);
a = mfree(a);
n = local_addresses(NULL, 0, AF_INET6, &a);
assert_se(n >= 0);
log_debug("/* Local Addresses(ifindex:0, AF_INET6) */");
- print_local_addresses(a, (unsigned) n);
+ print_local_addresses(a, n);
a = mfree(a);
n = local_addresses(NULL, 0, AF_UNSPEC, &a);
assert_se(n >= 0);
log_debug("/* Local Addresses(ifindex:0, AF_UNSPEC) */");
- print_local_addresses(a, (unsigned) n);
+ print_local_addresses(a, n);
a = mfree(a);
n = local_addresses(NULL, 1, AF_INET, &a);
assert_se(n >= 0);
log_debug("/* Local Addresses(ifindex:1, AF_INET) */");
- print_local_addresses(a, (unsigned) n);
+ print_local_addresses(a, n);
a = mfree(a);
n = local_addresses(NULL, 1, AF_INET6, &a);
assert_se(n >= 0);
log_debug("/* Local Addresses(ifindex:1, AF_INET6) */");
- print_local_addresses(a, (unsigned) n);
+ print_local_addresses(a, n);
a = mfree(a);
n = local_addresses(NULL, 1, AF_UNSPEC, &a);
assert_se(n >= 0);
log_debug("/* Local Addresses(ifindex:1, AF_UNSPEC) */");
- print_local_addresses(a, (unsigned) n);
+ print_local_addresses(a, n);
a = mfree(a);
n = local_gateways(NULL, 0, AF_UNSPEC, &a);
assert_se(n >= 0);
log_debug("/* Local Gateways */");
- print_local_addresses(a, (unsigned) n);
+ print_local_addresses(a, n);
a = mfree(a);
n = local_outbounds(NULL, 0, AF_UNSPEC, &a);
assert_se(n >= 0);
log_debug("/* Local Outbounds */");
- print_local_addresses(a, (unsigned) n);
+ print_local_addresses(a, n);
free(a);
}
+static void check_local_addresses(sd_netlink *rtnl, int ifindex, int request_ifindex, int family) {
+ _cleanup_free_ struct local_address *a = NULL;
+ union in_addr_union u;
+ int n;
+
+ log_debug("/* Local Addresses (ifindex:%i, %s) */", request_ifindex, family == AF_UNSPEC ? "AF_UNSPEC" : af_to_name(family));
+
+ n = local_addresses(rtnl, request_ifindex, family, &a);
+ assert_se(n >= 0);
+ print_local_addresses(a, n);
+
+ assert_se(in_addr_from_string(AF_INET, "10.123.123.123", &u) >= 0);
+ assert_se(has_local_address(a, n,
+ &(struct local_address) {
+ .ifindex = ifindex,
+ .scope = RT_SCOPE_UNIVERSE,
+ .family = AF_INET,
+ .address = u,
+ }) == IN_SET(family, AF_UNSPEC, AF_INET));
+
+ assert_se(in_addr_from_string(AF_INET6, "2001:db8:0:123::123", &u) >= 0);
+ assert_se(has_local_address(a, n,
+ &(struct local_address) {
+ .ifindex = ifindex,
+ .scope = RT_SCOPE_UNIVERSE,
+ .family = AF_INET6,
+ .address = u,
+ }) == IN_SET(family, AF_UNSPEC, AF_INET6));
+
+ assert_se(in_addr_from_string(AF_INET6, "2001:db8:1:123::123", &u) >= 0);
+ assert_se(has_local_address(a, n,
+ &(struct local_address) {
+ .ifindex = ifindex,
+ .scope = RT_SCOPE_UNIVERSE,
+ .family = AF_INET6,
+ .address = u,
+ }) == IN_SET(family, AF_UNSPEC, AF_INET6));
+}
+
+static void check_local_gateways(sd_netlink *rtnl, int ifindex, int request_ifindex, int family) {
+ _cleanup_free_ struct local_address *a = NULL;
+ union in_addr_union u;
+ int n;
+
+ log_debug("/* Local Gateways (ifindex:%i, %s) */", request_ifindex, family == AF_UNSPEC ? "AF_UNSPEC" : af_to_name(family));
+
+ n = local_gateways(rtnl, request_ifindex, family, &a);
+ assert_se(n >= 0);
+ print_local_addresses(a, n);
+
+ assert_se(in_addr_from_string(AF_INET, "10.123.0.1", &u) >= 0);
+ assert_se(has_local_address(a, n,
+ &(struct local_address) {
+ .ifindex = ifindex,
+ .priority = 1234,
+ .family = AF_INET,
+ .address = u,
+ }) == IN_SET(family, AF_UNSPEC, AF_INET));
+
+ assert_se(in_addr_from_string(AF_INET6, "2001:db8:0:123::1", &u) >= 0);
+ assert_se(has_local_address(a, n,
+ &(struct local_address) {
+ .ifindex = ifindex,
+ .priority = 1234,
+ .family = AF_INET6,
+ .address = u,
+ }) == (family == AF_UNSPEC && support_rta_via));
+
+ assert_se(in_addr_from_string(AF_INET6, "2001:db8:1:123::1", &u) >= 0);
+ assert_se(has_local_address(a, n,
+ &(struct local_address) {
+ .ifindex = ifindex,
+ .priority = 1234,
+ .family = AF_INET6,
+ .address = u,
+ }) == IN_SET(family, AF_UNSPEC, AF_INET6));
+}
+
+static void check_local_outbounds(sd_netlink *rtnl, int ifindex, int request_ifindex, int family) {
+ _cleanup_free_ struct local_address *a = NULL;
+ union in_addr_union u;
+ int n;
+
+ log_debug("/* Local Outbounds (ifindex:%i, %s) */", request_ifindex, family == AF_UNSPEC ? "AF_UNSPEC" : af_to_name(family));
+
+ n = local_outbounds(rtnl, request_ifindex, family, &a);
+ assert_se(n >= 0);
+ print_local_addresses(a, n);
+
+ assert_se(in_addr_from_string(AF_INET, "10.123.123.123", &u) >= 0);
+ assert_se(has_local_address(a, n,
+ &(struct local_address) {
+ .ifindex = ifindex,
+ .family = AF_INET,
+ .address = u,
+ }) == IN_SET(family, AF_UNSPEC, AF_INET));
+
+ assert_se(in_addr_from_string(AF_INET6, "2001:db8:0:123::123", &u) >= 0);
+ assert_se(has_local_address(a, n,
+ &(struct local_address) {
+ .ifindex = ifindex,
+ .family = AF_INET6,
+ .address = u,
+ }) == (family == AF_UNSPEC && support_rta_via));
+
+ assert_se(in_addr_from_string(AF_INET6, "2001:db8:1:123::123", &u) >= 0);
+ assert_se(has_local_address(a, n,
+ &(struct local_address) {
+ .ifindex = ifindex,
+ .family = AF_INET6,
+ .address = u,
+ }) == IN_SET(family, AF_UNSPEC, AF_INET6));
+}
+
+TEST(local_addresses_with_dummy) {
+ _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
+ _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *message = NULL, *reply = NULL;
+ union in_addr_union u;
+ int r, ifindex;
+
+ assert_se(sd_netlink_open(&rtnl) >= 0);
+
+ /* Create a dummy interface */
+ assert_se(sd_rtnl_message_new_link(rtnl, &message, RTM_NEWLINK, 0) >= 0);
+ assert_se(sd_netlink_message_append_string(message, IFLA_IFNAME, "test-local-addr") >= 0);
+ assert_se(sd_netlink_message_open_container(message, IFLA_LINKINFO) >= 0);
+ assert_se(sd_netlink_message_append_string(message, IFLA_INFO_KIND, "dummy") >= 0);
+ r = sd_netlink_call(rtnl, message, 0, NULL);
+ if (r == -EPERM)
+ return (void) log_tests_skipped("missing required capabilities");
+ if (r == -EOPNOTSUPP)
+ return (void) log_tests_skipped("dummy network interface is not supported");
+ assert_se(r >= 0);
+ message = sd_netlink_message_unref(message);
+
+ /* Get ifindex */
+ assert_se(sd_rtnl_message_new_link(rtnl, &message, RTM_GETLINK, 0) >= 0);
+ assert_se(sd_netlink_message_append_string(message, IFLA_IFNAME, "test-local-addr") >= 0);
+ assert_se(sd_netlink_call(rtnl, message, 0, &reply) >= 0);
+ assert_se(sd_rtnl_message_link_get_ifindex(reply, &ifindex) >= 0);
+ assert_se(ifindex > 0);
+ message = sd_netlink_message_unref(message);
+ reply = sd_netlink_message_unref(reply);
+
+ /* Bring the interface up */
+ assert_se(sd_rtnl_message_new_link(rtnl, &message, RTM_SETLINK, ifindex) >= 0);
+ assert_se(sd_rtnl_message_link_set_flags(message, IFF_UP, IFF_UP) >= 0);
+ assert_se(sd_netlink_call(rtnl, message, 0, NULL) >= 0);
+ message = sd_netlink_message_unref(message);
+
+ /* Add an IPv4 address */
+ assert_se(sd_rtnl_message_new_addr_update(rtnl, &message, ifindex, AF_INET) >= 0);
+ assert_se(sd_rtnl_message_addr_set_scope(message, RT_SCOPE_UNIVERSE) >= 0);
+ assert_se(sd_rtnl_message_addr_set_prefixlen(message, 16) >= 0);
+ assert_se(in_addr_from_string(AF_INET, "10.123.123.123", &u) >= 0);
+ assert_se(sd_netlink_message_append_in_addr(message, IFA_LOCAL, &u.in) >= 0);
+ assert_se(in_addr_from_string(AF_INET, "10.123.255.255", &u) >= 0);
+ assert_se(sd_netlink_message_append_in_addr(message, IFA_BROADCAST, &u.in) >= 0);
+ assert_se(sd_netlink_call(rtnl, message, 0, NULL) >= 0);
+ message = sd_netlink_message_unref(message);
+
+ /* Add IPv6 addresses */
+ assert_se(sd_rtnl_message_new_addr_update(rtnl, &message, ifindex, AF_INET6) >= 0);
+ assert_se(sd_rtnl_message_addr_set_scope(message, RT_SCOPE_UNIVERSE) >= 0);
+ assert_se(sd_rtnl_message_addr_set_prefixlen(message, 64) >= 0);
+ assert_se(in_addr_from_string(AF_INET6, "2001:db8:0:123::123", &u) >= 0);
+ assert_se(sd_netlink_message_append_in6_addr(message, IFA_LOCAL, &u.in6) >= 0);
+ assert_se(sd_netlink_message_append_u32(message, IFA_FLAGS, IFA_F_NODAD) >= 0);
+ assert_se(sd_netlink_call(rtnl, message, 0, NULL) >= 0);
+ message = sd_netlink_message_unref(message);
+
+ assert_se(sd_rtnl_message_new_addr_update(rtnl, &message, ifindex, AF_INET6) >= 0);
+ assert_se(sd_rtnl_message_addr_set_scope(message, RT_SCOPE_UNIVERSE) >= 0);
+ assert_se(sd_rtnl_message_addr_set_prefixlen(message, 64) >= 0);
+ assert_se(in_addr_from_string(AF_INET6, "2001:db8:1:123::123", &u) >= 0);
+ assert_se(sd_netlink_message_append_in6_addr(message, IFA_LOCAL, &u.in6) >= 0);
+ assert_se(sd_netlink_message_append_u32(message, IFA_FLAGS, IFA_F_NODAD) >= 0);
+ assert_se(sd_netlink_call(rtnl, message, 0, NULL) >= 0);
+ message = sd_netlink_message_unref(message);
+
+ /* Add an IPv4 default gateway (RTA_GATEWAY) */
+ assert_se(sd_rtnl_message_new_route(rtnl, &message, RTM_NEWROUTE, AF_INET, RTPROT_STATIC) >= 0);
+ assert_se(sd_rtnl_message_route_set_scope(message, RT_SCOPE_UNIVERSE) >= 0);
+ assert_se(sd_rtnl_message_route_set_type(message, RTN_UNICAST) >= 0);
+ assert_se(sd_netlink_message_append_u32(message, RTA_PRIORITY, 1234) >= 0);
+ assert_se(sd_netlink_message_append_u32(message, RTA_TABLE, RT_TABLE_MAIN) >= 0);
+ assert_se(in_addr_from_string(AF_INET, "10.123.0.1", &u) >= 0);
+ assert_se(sd_netlink_message_append_in_addr(message, RTA_GATEWAY, &u.in) >= 0);
+ assert_se(sd_netlink_message_append_u32(message, RTA_OIF, ifindex) >= 0);
+ assert_se(sd_netlink_call(rtnl, message, 0, NULL) >= 0);
+ message = sd_netlink_message_unref(message);
+
+ /* Add an IPv4 default gateway (RTA_VIA) */
+ assert_se(sd_rtnl_message_new_route(rtnl, &message, RTM_NEWROUTE, AF_INET, RTPROT_STATIC) >= 0);
+ assert_se(sd_rtnl_message_route_set_scope(message, RT_SCOPE_UNIVERSE) >= 0);
+ assert_se(sd_rtnl_message_route_set_type(message, RTN_UNICAST) >= 0);
+ assert_se(sd_netlink_message_append_u32(message, RTA_PRIORITY, 1234) >= 0);
+ assert_se(sd_netlink_message_append_u32(message, RTA_TABLE, RT_TABLE_MAIN) >= 0);
+ assert_se(in_addr_from_string(AF_INET6, "2001:db8:0:123::1", &u) >= 0);
+ assert_se(sd_netlink_message_append_data(message, RTA_VIA,
+ &(RouteVia) {
+ .family = AF_INET6,
+ .address = u,
+ }, sizeof(RouteVia)) >= 0);
+ assert_se(sd_netlink_message_append_u32(message, RTA_OIF, ifindex) >= 0);
+ r = sd_netlink_call(rtnl, message, 0, NULL);
+ if (r == -EINVAL)
+ log_debug_errno(r, "RTA_VIA is not supported, ignoring: %m");
+ else
+ assert_se(r >= 0);
+ support_rta_via = r >= 0;
+ message = sd_netlink_message_unref(message);
+
+ /* Add an IPv6 default gateway */
+ assert_se(sd_rtnl_message_new_route(rtnl, &message, RTM_NEWROUTE, AF_INET6, RTPROT_STATIC) >= 0);
+ assert_se(sd_rtnl_message_route_set_type(message, RTN_UNICAST) >= 0);
+ assert_se(sd_netlink_message_append_u32(message, RTA_PRIORITY, 1234) >= 0);
+ assert_se(sd_netlink_message_append_u32(message, RTA_TABLE, RT_TABLE_MAIN) >= 0);
+ assert_se(in_addr_from_string(AF_INET6, "2001:db8:1:123::1", &u) >= 0);
+ assert_se(sd_netlink_message_append_in6_addr(message, RTA_GATEWAY, &u.in6) >= 0);
+ assert_se(sd_netlink_message_append_u32(message, RTA_OIF, ifindex) >= 0);
+ assert_se(sd_netlink_call(rtnl, message, 0, NULL) >= 0);
+ message = sd_netlink_message_unref(message);
+
+ /* Check */
+ check_local_addresses(rtnl, ifindex, 0, AF_UNSPEC);
+ check_local_addresses(rtnl, ifindex, 0, AF_INET);
+ check_local_addresses(rtnl, ifindex, 0, AF_INET6);
+ check_local_addresses(rtnl, ifindex, ifindex, AF_UNSPEC);
+ check_local_addresses(rtnl, ifindex, ifindex, AF_INET);
+ check_local_addresses(rtnl, ifindex, ifindex, AF_INET6);
+ check_local_gateways(rtnl, ifindex, 0, AF_UNSPEC);
+ check_local_gateways(rtnl, ifindex, 0, AF_INET);
+ check_local_gateways(rtnl, ifindex, 0, AF_INET6);
+ check_local_gateways(rtnl, ifindex, ifindex, AF_UNSPEC);
+ check_local_gateways(rtnl, ifindex, ifindex, AF_INET);
+ check_local_gateways(rtnl, ifindex, ifindex, AF_INET6);
+ check_local_outbounds(rtnl, ifindex, 0, AF_UNSPEC);
+ check_local_outbounds(rtnl, ifindex, 0, AF_INET);
+ check_local_outbounds(rtnl, ifindex, 0, AF_INET6);
+ check_local_outbounds(rtnl, ifindex, ifindex, AF_UNSPEC);
+ check_local_outbounds(rtnl, ifindex, ifindex, AF_INET);
+ check_local_outbounds(rtnl, ifindex, ifindex, AF_INET6);
+
+ /* Cleanup */
+ assert_se(sd_rtnl_message_new_link(rtnl, &message, RTM_DELLINK, ifindex) >= 0);
+ assert_se(sd_netlink_call(rtnl, message, 0, NULL) >= 0);
+ message = sd_netlink_message_unref(message);
+}
+
DEFINE_TEST_MAIN(LOG_DEBUG);
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