shaba/systemd
1
0
Fork 0
mirror of https://github.com/systemd/systemd.git synced 2025-01-31 05:47:30 +03:00
Code
systemd/src/test/test-local-addresses.c

404 lines
22 KiB
C
Raw Blame History

/* 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 bool support_rta_via = false;
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) {
struct local_address *a = NULL;
int n;
n = local_addresses(NULL, 0, AF_INET, &a);
assert_se(n >= 0);
log_debug("/* Local Addresses(ifindex:0, AF_INET) */");
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, 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, 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, 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, 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, n);
a = mfree(a);
n = local_gateways(NULL, 0, AF_UNSPEC, &a);
assert_se(n >= 0);
log_debug("/* Local Gateways */");
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, 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, const char *ipv6_expected) {
_cleanup_free_ struct local_address *a = NULL;
union in_addr_union u;
int n;
log_debug("/* Local Outbounds (ifindex:%i, %s, expected_ipv6_address=%s) */",
request_ifindex, family == AF_UNSPEC ? "AF_UNSPEC" : af_to_name(family), ipv6_expected);
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, ipv6_expected, &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, "2001:db8:1:123::123");
check_local_outbounds(rtnl, ifindex, 0, AF_INET, "2001:db8:1:123::123");
check_local_outbounds(rtnl, ifindex, 0, AF_INET6, "2001:db8:1:123::123");
check_local_outbounds(rtnl, ifindex, ifindex, AF_UNSPEC, "2001:db8:1:123::123");
check_local_outbounds(rtnl, ifindex, ifindex, AF_INET, "2001:db8:1:123::123");
check_local_outbounds(rtnl, ifindex, ifindex, AF_INET6, "2001:db8:1:123::123");
/* Add one more IPv6 address. */
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::124", &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);
/* Replace the previous IPv6 default gateway with one with preferred source address. */
assert_se(sd_rtnl_message_new_route(rtnl, &message, RTM_DELROUTE, 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);
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(in_addr_from_string(AF_INET6, "2001:db8:1:123::123", &u) >= 0);
assert_se(sd_netlink_message_append_in6_addr(message, RTA_PREFSRC, &u.in6) >= 0);
assert_se(sd_netlink_call(rtnl, message, 0, NULL) >= 0);
message = sd_netlink_message_unref(message);
/* Check again. */
check_local_outbounds(rtnl, ifindex, 0, AF_UNSPEC, "2001:db8:1:123::123");
check_local_outbounds(rtnl, ifindex, 0, AF_INET, "2001:db8:1:123::123");
check_local_outbounds(rtnl, ifindex, 0, AF_INET6, "2001:db8:1:123::123");
check_local_outbounds(rtnl, ifindex, ifindex, AF_UNSPEC, "2001:db8:1:123::123");
check_local_outbounds(rtnl, ifindex, ifindex, AF_INET, "2001:db8:1:123::123");
check_local_outbounds(rtnl, ifindex, ifindex, AF_INET6, "2001:db8:1:123::123");
/* Replace the preferred source address. */
assert_se(sd_rtnl_message_new_route(rtnl, &message, RTM_DELROUTE, 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(in_addr_from_string(AF_INET6, "2001:db8:1:123::123", &u) >= 0);
assert_se(sd_netlink_message_append_in6_addr(message, RTA_PREFSRC, &u.in6) >= 0);
assert_se(sd_netlink_call(rtnl, message, 0, NULL) >= 0);
message = sd_netlink_message_unref(message);
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(in_addr_from_string(AF_INET6, "2001:db8:1:123::124", &u) >= 0);
assert_se(sd_netlink_message_append_in6_addr(message, RTA_PREFSRC, &u.in6) >= 0);
assert_se(sd_netlink_call(rtnl, message, 0, NULL) >= 0);
message = sd_netlink_message_unref(message);
/* Check again. */
check_local_outbounds(rtnl, ifindex, 0, AF_UNSPEC, "2001:db8:1:123::124");
check_local_outbounds(rtnl, ifindex, 0, AF_INET, "2001:db8:1:123::124");
check_local_outbounds(rtnl, ifindex, 0, AF_INET6, "2001:db8:1:123::124");
check_local_outbounds(rtnl, ifindex, ifindex, AF_UNSPEC, "2001:db8:1:123::124");
check_local_outbounds(rtnl, ifindex, ifindex, AF_INET, "2001:db8:1:123::124");
check_local_outbounds(rtnl, ifindex, ifindex, AF_INET6, "2001:db8:1:123::124");
/* 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);
View Git Blame Copy Permalink