/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2015 Red Hat, Inc. */ #include "nm-default.h" #include #include "ndisc/nm-ndisc.h" #include "ndisc/nm-fake-ndisc.h" #include "platform/nm-fake-platform.h" #include "nm-test-utils-core.h" static NMFakeNDisc * ndisc_new(void) { NMNDisc * ndisc; const int ifindex = 1; const char * ifname = nm_platform_link_get_name(NM_PLATFORM_GET, ifindex); NMUtilsIPv6IfaceId iid = {}; ndisc = nm_fake_ndisc_new(ifindex, ifname); iid.id_u8[7] = 1; nm_ndisc_set_iid(ndisc, iid); g_assert(ndisc); return NM_FAKE_NDISC(ndisc); } static void match_gateway(const NMNDiscData *rdata, guint idx, const char * addr, guint32 ts, guint32 lt, NMIcmpv6RouterPref pref) { const NMNDiscGateway *gw; char buf[INET6_ADDRSTRLEN]; g_assert(rdata); g_assert_cmpint(idx, <, rdata->gateways_n); g_assert(rdata->gateways); gw = &rdata->gateways[idx]; g_assert_cmpstr(inet_ntop(AF_INET6, &gw->address, buf, sizeof(buf)), ==, addr); g_assert_cmpint(gw->timestamp, ==, ts); g_assert_cmpint(gw->lifetime, ==, lt); g_assert_cmpint(gw->preference, ==, pref); } #define match_address(rdata, idx, addr, ts, lt, pref) \ G_STMT_START \ { \ const NMNDiscData * _rdata = (rdata); \ guint _idx = (idx); \ const NMNDiscAddress *_a; \ guint _ts = (ts); \ \ g_assert(_rdata); \ g_assert_cmpint(_idx, <, _rdata->addresses_n); \ g_assert(_rdata->addresses); \ \ _a = &_rdata->addresses[_idx]; \ \ nmtst_assert_ip6_address(&_a->address, (addr)); \ g_assert_cmpint(_a->timestamp, <=, _ts + 1); \ g_assert_cmpint((int) _a->timestamp, >=, (int) _ts - 1); \ g_assert_cmpint(_a->timestamp + _a->lifetime, ==, _ts + (lt)); \ g_assert_cmpint(_a->timestamp + _a->preferred, ==, _ts + (pref)); \ } \ G_STMT_END #define match_route(rdata, idx, nw, pl, gw, ts, lt, pref) \ G_STMT_START \ { \ const NMNDiscData * _rdata = (rdata); \ guint _idx = (idx); \ const NMNDiscRoute *_r; \ int _plen = (pl); \ \ g_assert(_rdata); \ g_assert_cmpint(_idx, <, _rdata->routes_n); \ g_assert(_rdata->routes); \ g_assert(_plen > 0 && _plen <= 128); \ \ _r = &_rdata->routes[idx]; \ \ nmtst_assert_ip6_address(&_r->network, (nw)); \ g_assert_cmpint((int) _r->plen, ==, _plen); \ nmtst_assert_ip6_address(&_r->gateway, (gw)); \ g_assert_cmpint(_r->timestamp, ==, (ts)); \ g_assert_cmpint(_r->lifetime, ==, (lt)); \ g_assert_cmpint(_r->preference, ==, (pref)); \ } \ G_STMT_END static void match_dns_server(const NMNDiscData *rdata, guint idx, const char *addr, guint32 ts, guint32 lt) { const NMNDiscDNSServer *dns; char buf[INET6_ADDRSTRLEN]; g_assert(rdata); g_assert_cmpint(idx, <, rdata->dns_servers_n); g_assert(rdata->dns_servers); dns = &rdata->dns_servers[idx]; g_assert_cmpstr(inet_ntop(AF_INET6, &dns->address, buf, sizeof(buf)), ==, addr); g_assert_cmpint(dns->timestamp, ==, ts); g_assert_cmpint(dns->lifetime, ==, lt); } static void match_dns_domain(const NMNDiscData *rdata, guint idx, const char *domain, guint32 ts, guint32 lt) { const NMNDiscDNSDomain *dns; g_assert(rdata); g_assert_cmpint(idx, <, rdata->dns_domains_n); g_assert(rdata->dns_domains); dns = &rdata->dns_domains[idx]; g_assert_cmpstr(dns->domain, ==, domain); g_assert_cmpint(dns->timestamp, ==, ts); g_assert_cmpint(dns->lifetime, ==, lt); } typedef struct { GMainLoop *loop; guint counter; guint rs_counter; guint32 timestamp1; guint32 first_solicit; guint32 timeout_id; } TestData; static void test_simple_changed(NMNDisc *ndisc, const NMNDiscData *rdata, guint changed_int, TestData *data) { NMNDiscConfigMap changed = changed_int; g_assert_cmpint(changed, ==, NM_NDISC_CONFIG_DHCP_LEVEL | NM_NDISC_CONFIG_GATEWAYS | NM_NDISC_CONFIG_ADDRESSES | NM_NDISC_CONFIG_ROUTES | NM_NDISC_CONFIG_DNS_SERVERS | NM_NDISC_CONFIG_DNS_DOMAINS | NM_NDISC_CONFIG_HOP_LIMIT | NM_NDISC_CONFIG_MTU); g_assert_cmpint(rdata->dhcp_level, ==, NM_NDISC_DHCP_LEVEL_OTHERCONF); match_gateway(rdata, 0, "fe80::1", data->timestamp1, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); match_address(rdata, 0, "2001:db8:a:a::1", data->timestamp1, 10, 10); match_route(rdata, 0, "2001:db8:a:a::", 64, "fe80::1", data->timestamp1, 10, 10); match_dns_server(rdata, 0, "2001:db8:c:c::1", data->timestamp1, 10); match_dns_domain(rdata, 0, "foobar.com", data->timestamp1, 10); g_assert(nm_fake_ndisc_done(NM_FAKE_NDISC(ndisc))); data->counter++; g_main_loop_quit(data->loop); } static void test_simple(void) { NMFakeNDisc *ndisc = ndisc_new(); guint32 now = nm_utils_get_monotonic_timestamp_sec(); TestData data = {g_main_loop_new(NULL, FALSE), 0, 0, now}; guint id; id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_OTHERCONF, 4, 1500); g_assert(id); nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:a::", 64, "fe80::1", now, 10, 10, 10); nm_fake_ndisc_add_dns_server(ndisc, id, "2001:db8:c:c::1", now, 10); nm_fake_ndisc_add_dns_domain(ndisc, id, "foobar.com", now, 10); g_signal_connect(ndisc, NM_NDISC_CONFIG_RECEIVED, G_CALLBACK(test_simple_changed), &data); nm_ndisc_start(NM_NDISC(ndisc)); g_main_loop_run(data.loop); g_assert_cmpint(data.counter, ==, 1); g_object_unref(ndisc); g_main_loop_unref(data.loop); } static void test_everything_rs_sent(NMNDisc *ndisc, TestData *data) { g_assert_cmpint(data->rs_counter, ==, 0); data->rs_counter++; } static void test_everything_changed(NMNDisc *ndisc, const NMNDiscData *rdata, guint changed_int, TestData *data) { NMNDiscConfigMap changed = changed_int; if (data->counter == 0) { g_assert_cmpint(data->rs_counter, ==, 1); g_assert_cmpint(changed, ==, NM_NDISC_CONFIG_DHCP_LEVEL | NM_NDISC_CONFIG_GATEWAYS | NM_NDISC_CONFIG_ADDRESSES | NM_NDISC_CONFIG_ROUTES | NM_NDISC_CONFIG_DNS_SERVERS | NM_NDISC_CONFIG_DNS_DOMAINS | NM_NDISC_CONFIG_HOP_LIMIT | NM_NDISC_CONFIG_MTU); match_gateway(rdata, 0, "fe80::1", data->timestamp1, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); match_address(rdata, 0, "2001:db8:a:a::1", data->timestamp1, 10, 10); match_route(rdata, 0, "2001:db8:a:a::", 64, "fe80::1", data->timestamp1, 10, 10); match_dns_server(rdata, 0, "2001:db8:c:c::1", data->timestamp1, 10); match_dns_domain(rdata, 0, "foobar.com", data->timestamp1, 10); } else if (data->counter == 1) { g_assert_cmpint(changed, ==, NM_NDISC_CONFIG_GATEWAYS | NM_NDISC_CONFIG_ADDRESSES | NM_NDISC_CONFIG_ROUTES | NM_NDISC_CONFIG_DNS_SERVERS | NM_NDISC_CONFIG_DNS_DOMAINS); g_assert_cmpint(rdata->gateways_n, ==, 1); match_gateway(rdata, 0, "fe80::2", data->timestamp1, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); g_assert_cmpint(rdata->addresses_n, ==, 2); match_address(rdata, 0, "2001:db8:a:a::1", data->timestamp1, 10, 0); match_address(rdata, 1, "2001:db8:a:b::1", data->timestamp1, 10, 10); g_assert_cmpint(rdata->routes_n, ==, 1); match_route(rdata, 0, "2001:db8:a:b::", 64, "fe80::2", data->timestamp1, 10, 10); g_assert_cmpint(rdata->dns_servers_n, ==, 1); match_dns_server(rdata, 0, "2001:db8:c:c::2", data->timestamp1, 10); g_assert_cmpint(rdata->dns_domains_n, ==, 1); match_dns_domain(rdata, 0, "foobar2.com", data->timestamp1, 10); g_assert(nm_fake_ndisc_done(NM_FAKE_NDISC(ndisc))); g_main_loop_quit(data->loop); } else g_assert_not_reached(); data->counter++; } static void test_everything(void) { NMFakeNDisc *ndisc = ndisc_new(); guint32 now = nm_utils_get_monotonic_timestamp_sec(); TestData data = {g_main_loop_new(NULL, FALSE), 0, 0, now}; guint id; id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); g_assert(id); nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:a::", 64, "fe80::1", now, 10, 10, 10); nm_fake_ndisc_add_dns_server(ndisc, id, "2001:db8:c:c::1", now, 10); nm_fake_ndisc_add_dns_domain(ndisc, id, "foobar.com", now, 10); /* expire everything from the first RA in the second */ id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); g_assert(id); nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 0, NM_ICMPV6_ROUTER_PREF_MEDIUM); nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:a::", 64, "fe80::1", now, 0, 0, 0); nm_fake_ndisc_add_dns_server(ndisc, id, "2001:db8:c:c::1", now, 0); nm_fake_ndisc_add_dns_domain(ndisc, id, "foobar.com", now, 0); /* and add some new stuff */ nm_fake_ndisc_add_gateway(ndisc, id, "fe80::2", now, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:b::", 64, "fe80::2", now, 10, 10, 10); nm_fake_ndisc_add_dns_server(ndisc, id, "2001:db8:c:c::2", now, 10); nm_fake_ndisc_add_dns_domain(ndisc, id, "foobar2.com", now, 10); g_signal_connect(ndisc, NM_NDISC_CONFIG_RECEIVED, G_CALLBACK(test_everything_changed), &data); g_signal_connect(ndisc, NM_FAKE_NDISC_RS_SENT, G_CALLBACK(test_everything_rs_sent), &data); nm_ndisc_start(NM_NDISC(ndisc)); g_main_loop_run(data.loop); g_assert_cmpint(data.counter, ==, 2); g_assert_cmpint(data.rs_counter, ==, 1); g_object_unref(ndisc); g_main_loop_unref(data.loop); } static void test_preference_order_cb(NMNDisc * ndisc, const NMNDiscData *rdata, guint changed_int, TestData * data) { NMNDiscConfigMap changed = changed_int; if (data->counter == 1) { g_assert_cmpint(changed, ==, NM_NDISC_CONFIG_GATEWAYS | NM_NDISC_CONFIG_ADDRESSES | NM_NDISC_CONFIG_ROUTES); g_assert_cmpint(rdata->gateways_n, ==, 2); match_gateway(rdata, 0, "fe80::1", data->timestamp1, 10, NM_ICMPV6_ROUTER_PREF_HIGH); match_gateway(rdata, 1, "fe80::2", data->timestamp1 + 1, 10, NM_ICMPV6_ROUTER_PREF_LOW); g_assert_cmpint(rdata->addresses_n, ==, 2); match_address(rdata, 0, "2001:db8:a:a::1", data->timestamp1, 10, 10); match_address(rdata, 1, "2001:db8:a:b::1", data->timestamp1 + 1, 10, 10); g_assert_cmpint(rdata->routes_n, ==, 2); match_route(rdata, 0, "2001:db8:a:b::", 64, "fe80::2", data->timestamp1 + 1, 10, 10); match_route(rdata, 1, "2001:db8:a:a::", 64, "fe80::1", data->timestamp1, 10, 5); g_assert(nm_fake_ndisc_done(NM_FAKE_NDISC(ndisc))); g_main_loop_quit(data->loop); } data->counter++; } static void test_preference_order(void) { NMFakeNDisc *ndisc = ndisc_new(); guint32 now = nm_utils_get_monotonic_timestamp_sec(); TestData data = {g_main_loop_new(NULL, FALSE), 0, 0, now}; guint id; /* Test insertion order of gateways */ id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); g_assert(id); nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 10, NM_ICMPV6_ROUTER_PREF_HIGH); nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:a::", 64, "fe80::1", now, 10, 10, 5); id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); g_assert(id); nm_fake_ndisc_add_gateway(ndisc, id, "fe80::2", ++now, 10, NM_ICMPV6_ROUTER_PREF_LOW); nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:b::", 64, "fe80::2", now, 10, 10, 10); g_signal_connect(ndisc, NM_NDISC_CONFIG_RECEIVED, G_CALLBACK(test_preference_order_cb), &data); nm_ndisc_start(NM_NDISC(ndisc)); g_main_loop_run(data.loop); g_assert_cmpint(data.counter, ==, 2); g_object_unref(ndisc); g_main_loop_unref(data.loop); } static void test_preference_changed_cb(NMNDisc * ndisc, const NMNDiscData *rdata, guint changed_int, TestData * data) { NMNDiscConfigMap changed = changed_int; if (data->counter == 1) { g_assert_cmpint(changed, ==, NM_NDISC_CONFIG_GATEWAYS | NM_NDISC_CONFIG_ADDRESSES | NM_NDISC_CONFIG_ROUTES); g_assert_cmpint(rdata->gateways_n, ==, 2); match_gateway(rdata, 0, "fe80::2", data->timestamp1 + 1, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); match_gateway(rdata, 1, "fe80::1", data->timestamp1, 10, NM_ICMPV6_ROUTER_PREF_LOW); g_assert_cmpint(rdata->addresses_n, ==, 2); match_address(rdata, 0, "2001:db8:a:a::1", data->timestamp1, 10, 10); match_address(rdata, 1, "2001:db8:a:b::1", data->timestamp1 + 1, 10, 10); g_assert_cmpint(rdata->routes_n, ==, 2); match_route(rdata, 0, "2001:db8:a:b::", 64, "fe80::2", data->timestamp1 + 1, 10, 10); match_route(rdata, 1, "2001:db8:a:a::", 64, "fe80::1", data->timestamp1, 10, 5); } else if (data->counter == 2) { g_assert_cmpint(changed, ==, NM_NDISC_CONFIG_GATEWAYS | NM_NDISC_CONFIG_ADDRESSES | NM_NDISC_CONFIG_ROUTES); g_assert_cmpint(rdata->gateways_n, ==, 2); match_gateway(rdata, 0, "fe80::1", data->timestamp1 + 2, 10, NM_ICMPV6_ROUTER_PREF_HIGH); match_gateway(rdata, 1, "fe80::2", data->timestamp1 + 1, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); g_assert_cmpint(rdata->addresses_n, ==, 2); match_address(rdata, 0, "2001:db8:a:a::1", data->timestamp1 + 3, 9, 9); match_address(rdata, 1, "2001:db8:a:b::1", data->timestamp1 + 1, 10, 10); g_assert_cmpint(rdata->routes_n, ==, 2); match_route(rdata, 0, "2001:db8:a:a::", 64, "fe80::1", data->timestamp1 + 2, 10, 15); match_route(rdata, 1, "2001:db8:a:b::", 64, "fe80::2", data->timestamp1 + 1, 10, 10); g_assert(nm_fake_ndisc_done(NM_FAKE_NDISC(ndisc))); g_main_loop_quit(data->loop); } data->counter++; } static void test_preference_changed(void) { NMFakeNDisc *ndisc = ndisc_new(); guint32 now = nm_utils_get_monotonic_timestamp_sec(); TestData data = {g_main_loop_new(NULL, FALSE), 0, 0, now}; guint id; /* Test that when a low-preference and medium gateway send advertisements, * that if the low-preference gateway switches to high-preference, we do * not get duplicates in the gateway list. */ id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); g_assert(id); nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 10, NM_ICMPV6_ROUTER_PREF_LOW); nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:a::", 64, "fe80::1", now, 10, 10, 5); id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); g_assert(id); nm_fake_ndisc_add_gateway(ndisc, id, "fe80::2", ++now, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:b::", 64, "fe80::2", now, 10, 10, 10); id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); g_assert(id); nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", ++now, 10, NM_ICMPV6_ROUTER_PREF_HIGH); nm_fake_ndisc_add_prefix(ndisc, id, "2001:db8:a:a::", 64, "fe80::1", now, 10, 10, 15); g_signal_connect(ndisc, NM_NDISC_CONFIG_RECEIVED, G_CALLBACK(test_preference_changed_cb), &data); nm_ndisc_start(NM_NDISC(ndisc)); g_main_loop_run(data.loop); g_assert_cmpint(data.counter, ==, 3); g_object_unref(ndisc); g_main_loop_unref(data.loop); } static void test_dns_solicit_loop_changed(NMNDisc * ndisc, const NMNDiscData *rdata, guint changed_int, TestData * data) { data->counter++; } static gboolean success_timeout(TestData *data) { data->timeout_id = 0; g_main_loop_quit(data->loop); return G_SOURCE_REMOVE; } static void test_dns_solicit_loop_rs_sent(NMFakeNDisc *ndisc, TestData *data) { guint32 now = nm_utils_get_monotonic_timestamp_sec(); guint id; if (data->rs_counter > 0 && data->rs_counter < 6) { if (data->rs_counter == 1) { data->first_solicit = now; /* Kill the test after 10 seconds if it hasn't failed yet */ data->timeout_id = g_timeout_add_seconds(10, (GSourceFunc) success_timeout, data); } /* On all but the first solicitation, which should be triggered by the * DNS servers reaching 1/2 lifetime, emit a new RA without the DNS * servers again. */ id = nm_fake_ndisc_add_ra(ndisc, 0, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); g_assert(id); nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 10, NM_ICMPV6_ROUTER_PREF_MEDIUM); nm_fake_ndisc_emit_new_ras(ndisc); } else if (data->rs_counter >= 6) { /* Fail if we've sent too many solicitations in the past 4 seconds */ g_assert_cmpint(now - data->first_solicit, >, 4); g_source_remove(data->timeout_id); g_main_loop_quit(data->loop); } data->rs_counter++; } static void test_dns_solicit_loop(void) { NMFakeNDisc *ndisc = ndisc_new(); guint32 now = nm_utils_get_monotonic_timestamp_sec(); TestData data = {g_main_loop_new(NULL, FALSE), 0, 0, now, 0}; guint id; /* Ensure that no solicitation loop happens when DNS servers or domains * stop being sent in advertisements. This can happen if two routers * send RAs, but the one sending DNS info stops responding, or if one * router removes the DNS info from the RA without zero-lifetiming them * first. */ id = nm_fake_ndisc_add_ra(ndisc, 1, NM_NDISC_DHCP_LEVEL_NONE, 4, 1500); g_assert(id); nm_fake_ndisc_add_gateway(ndisc, id, "fe80::1", now, 10, NM_ICMPV6_ROUTER_PREF_LOW); nm_fake_ndisc_add_dns_server(ndisc, id, "2001:db8:c:c::1", now, 6); g_signal_connect(ndisc, NM_NDISC_CONFIG_RECEIVED, G_CALLBACK(test_dns_solicit_loop_changed), &data); g_signal_connect(ndisc, NM_FAKE_NDISC_RS_SENT, G_CALLBACK(test_dns_solicit_loop_rs_sent), &data); nm_ndisc_start(NM_NDISC(ndisc)); g_main_loop_run(data.loop); g_assert_cmpint(data.counter, ==, 3); g_object_unref(ndisc); g_main_loop_unref(data.loop); } NMTST_DEFINE(); int main(int argc, char **argv) { nmtst_init_with_logging(&argc, &argv, NULL, "DEFAULT"); if (nmtst_test_quick()) { g_print("Skipping test: don't run long running test %s (NMTST_DEBUG=slow)\n", g_get_prgname() ?: "test-ndisc-fake"); return g_test_run(); } nm_fake_platform_setup(); g_test_add_func("/ndisc/simple", test_simple); g_test_add_func("/ndisc/everything-changed", test_everything); g_test_add_func("/ndisc/preference-order", test_preference_order); g_test_add_func("/ndisc/preference-changed", test_preference_changed); g_test_add_func("/ndisc/dns-solicit-loop", test_dns_solicit_loop); return g_test_run(); }