+/* SPDX-License-Identifier: LGPL-2.1+ */
/***
- This file is part of systemd.
-
- Copyright (C) 2014 Intel Corporation. All rights reserved.
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ Copyright © 2014 Intel Corporation. All rights reserved.
***/
#include <netinet/icmp6.h>
+#include <arpa/inet.h>
+#include <unistd.h>
#include "sd-ndisc.h"
+#include "alloc-util.h"
+#include "hexdecoct.h"
#include "icmp6-util.h"
#include "socket-util.h"
+#include "strv.h"
+#include "ndisc-internal.h"
+#include "tests.h"
static struct ether_addr mac_addr = {
.ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}
static bool verbose = false;
static sd_event_source *test_hangcheck;
static int test_fd[2];
+static sd_ndisc *test_timeout_nd;
typedef int (*send_ra_t)(uint8_t flags);
static send_ra_t send_ra_function;
+static void router_dump(sd_ndisc_router *rt) {
+ struct in6_addr addr;
+ char buf[FORMAT_TIMESTAMP_MAX];
+ uint8_t hop_limit;
+ uint64_t t, flags;
+ uint32_t mtu;
+ uint16_t lifetime;
+ unsigned preference;
+ int r;
+
+ assert_se(rt);
+
+ log_info("--");
+ assert_se(sd_ndisc_router_get_address(rt, &addr) == -ENODATA);
+
+ assert_se(sd_ndisc_router_get_timestamp(rt, CLOCK_REALTIME, &t) >= 0);
+ log_info("Timestamp: %s", format_timestamp(buf, sizeof(buf), t));
+
+ assert_se(sd_ndisc_router_get_timestamp(rt, CLOCK_MONOTONIC, &t) >= 0);
+ log_info("Monotonic: %" PRIu64, t);
+
+ if (sd_ndisc_router_get_hop_limit(rt, &hop_limit) < 0)
+ log_info("No hop limit set");
+ else
+ log_info("Hop limit: %u", hop_limit);
+
+ assert_se(sd_ndisc_router_get_flags(rt, &flags) >= 0);
+ log_info("Flags: <%s|%s>",
+ flags & ND_RA_FLAG_OTHER ? "OTHER" : "",
+ flags & ND_RA_FLAG_MANAGED ? "MANAGED" : "");
+
+ assert_se(sd_ndisc_router_get_preference(rt, &preference) >= 0);
+ log_info("Preference: %s",
+ preference == SD_NDISC_PREFERENCE_LOW ? "low" :
+ preference == SD_NDISC_PREFERENCE_HIGH ? "high" : "medium");
+
+ assert_se(sd_ndisc_router_get_lifetime(rt, &lifetime) >= 0);
+ log_info("Lifetime: %" PRIu16, lifetime);
+
+ if (sd_ndisc_router_get_mtu(rt, &mtu) < 0)
+ log_info("No MTU set");
+ else
+ log_info("MTU: %" PRIu32, mtu);
+
+ r = sd_ndisc_router_option_rewind(rt);
+ for (;;) {
+ uint8_t type;
+
+ assert_se(r >= 0);
+
+ if (r == 0)
+ break;
+
+ assert_se(sd_ndisc_router_option_get_type(rt, &type) >= 0);
+
+ log_info(">> Option %u", type);
+
+ switch (type) {
+
+ case SD_NDISC_OPTION_SOURCE_LL_ADDRESS:
+ case SD_NDISC_OPTION_TARGET_LL_ADDRESS: {
+ _cleanup_free_ char *c = NULL;
+ const void *p;
+ size_t n;
+
+ assert_se(sd_ndisc_router_option_get_raw(rt, &p, &n) >= 0);
+ assert_se(n > 2);
+ assert_se(c = hexmem((uint8_t*) p + 2, n - 2));
+
+ log_info("Address: %s", c);
+ break;
+ }
+
+ case SD_NDISC_OPTION_PREFIX_INFORMATION: {
+ uint32_t lifetime_valid, lifetime_preferred;
+ unsigned prefix_len;
+ uint8_t pfl;
+ struct in6_addr a;
+ char buff[INET6_ADDRSTRLEN];
+
+ assert_se(sd_ndisc_router_prefix_get_valid_lifetime(rt, &lifetime_valid) >= 0);
+ log_info("Valid Lifetime: %" PRIu32, lifetime_valid);
+
+ assert_se(sd_ndisc_router_prefix_get_preferred_lifetime(rt, &lifetime_preferred) >= 0);
+ log_info("Preferred Lifetime: %" PRIu32, lifetime_preferred);
+
+ assert_se(sd_ndisc_router_prefix_get_flags(rt, &pfl) >= 0);
+ log_info("Flags: <%s|%s>",
+ pfl & ND_OPT_PI_FLAG_ONLINK ? "ONLINK" : "",
+ pfl & ND_OPT_PI_FLAG_AUTO ? "AUTO" : "");
+
+ assert_se(sd_ndisc_router_prefix_get_prefixlen(rt, &prefix_len) >= 0);
+ log_info("Prefix Length: %u", prefix_len);
+
+ assert_se(sd_ndisc_router_prefix_get_address(rt, &a) >= 0);
+ log_info("Prefix: %s", inet_ntop(AF_INET6, &a, buff, sizeof(buff)));
+
+ break;
+ }
+
+ case SD_NDISC_OPTION_RDNSS: {
+ const struct in6_addr *a;
+ uint32_t lt;
+ int n, i;
+
+ n = sd_ndisc_router_rdnss_get_addresses(rt, &a);
+ assert_se(n > 0);
+
+ for (i = 0; i < n; i++) {
+ char buff[INET6_ADDRSTRLEN];
+ log_info("DNS: %s", inet_ntop(AF_INET6, a + i, buff, sizeof(buff)));
+ }
+
+ assert_se(sd_ndisc_router_rdnss_get_lifetime(rt, <) >= 0);
+ log_info("Lifetime: %" PRIu32, lt);
+ break;
+ }
+
+ case SD_NDISC_OPTION_DNSSL: {
+ _cleanup_strv_free_ char **l = NULL;
+ uint32_t lt;
+ int n, i;
+
+ n = sd_ndisc_router_dnssl_get_domains(rt, &l);
+ assert_se(n > 0);
+
+ for (i = 0; i < n; i++)
+ log_info("Domain: %s", l[i]);
+
+ assert_se(sd_ndisc_router_dnssl_get_lifetime(rt, <) >= 0);
+ log_info("Lifetime: %" PRIu32, lt);
+ break;
+ }}
+
+ r = sd_ndisc_router_option_next(rt);
+ }
+}
+
static int test_rs_hangcheck(sd_event_source *s, uint64_t usec,
void *userdata) {
assert_se(false);
int icmp6_bind_router_solicitation(int index) {
assert_se(index == 42);
- if (socketpair(AF_UNIX, SOCK_DGRAM, 0, test_fd) < 0)
+ if (socketpair(AF_UNIX, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0, test_fd) < 0)
return -errno;
return test_fd[0];
}
+int icmp6_bind_router_advertisement(int index) {
+
+ return -ENOSYS;
+}
+
+int icmp6_receive(int fd, void *iov_base, size_t iov_len,
+ struct in6_addr *dst, triple_timestamp *timestamp) {
+ assert_se(read (fd, iov_base, iov_len) == (ssize_t)iov_len);
+
+ if (timestamp)
+ triple_timestamp_get(timestamp);
+
+ return 0;
+}
+
static int send_ra(uint8_t flags) {
uint8_t advertisement[] = {
0x86, 0x00, 0xde, 0x83, 0x40, 0xc0, 0x00, 0xb4,
}
int icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr) {
+ if (!send_ra_function)
+ return 0;
+
return send_ra_function(0);
}
-static void test_rs_done(sd_ndisc *nd, uint8_t flags, const struct in6_addr *gateway, unsigned lifetime, int pref, void *userdata) {
+static void test_callback(sd_ndisc *nd, sd_ndisc_event event, sd_ndisc_router *rt, void *userdata) {
sd_event *e = userdata;
static unsigned idx = 0;
- uint8_t flags_array[] = {
+ uint64_t flags_array[] = {
0,
0,
0,
ND_RA_FLAG_OTHER,
ND_RA_FLAG_MANAGED
};
+ uint64_t flags;
uint32_t mtu;
assert_se(nd);
+ if (event != SD_NDISC_EVENT_ROUTER)
+ return;
+
+ router_dump(rt);
+
+ assert_se(sd_ndisc_router_get_flags(rt, &flags) >= 0);
assert_se(flags == flags_array[idx]);
idx++;
if (verbose)
- printf(" got event 0x%02x\n", flags);
+ printf(" got event 0x%02" PRIx64 "\n", flags);
if (idx < ELEMENTSOF(flags_array)) {
send_ra(flags_array[idx]);
return;
}
- assert_se(sd_ndisc_get_mtu(nd, &mtu) == -ENOMSG);
+ assert_se(sd_ndisc_get_mtu(nd, &mtu) == -ENODATA);
sd_event_exit(e, 0);
}
assert_se(sd_ndisc_set_ifindex(nd, 42) >= 0);
assert_se(sd_ndisc_set_mac(nd, &mac_addr) >= 0);
- assert_se(sd_ndisc_set_callback(nd, test_rs_done, NULL, NULL, NULL, e) >= 0);
+ assert_se(sd_ndisc_set_callback(nd, test_callback, e) >= 0);
assert_se(sd_event_add_time(e, &test_hangcheck, clock_boottime_or_monotonic(),
time_now + 2 *USEC_PER_SEC, 0,
test_rs_hangcheck, NULL) >= 0);
assert_se(sd_ndisc_stop(nd) >= 0);
- assert_se(sd_ndisc_router_discovery_start(nd) >= 0);
+ assert_se(sd_ndisc_start(nd) >= 0);
+ assert_se(sd_ndisc_start(nd) >= 0);
assert_se(sd_ndisc_stop(nd) >= 0);
- assert_se(sd_ndisc_router_discovery_start(nd) >= 0);
+ assert_se(sd_ndisc_start(nd) >= 0);
sd_event_loop(e);
sd_event_unref(e);
}
+static int test_timeout_value(uint8_t flags) {
+ static int count = 0;
+ static usec_t last = 0;
+ sd_ndisc *nd = test_timeout_nd;
+ usec_t min, max;
+ char time_string_min[FORMAT_TIMESPAN_MAX];
+ char time_string_nd[FORMAT_TIMESPAN_MAX];
+ char time_string_max[FORMAT_TIMESPAN_MAX];
+
+ assert_se(nd);
+ assert_se(nd->event);
+
+ if (++count >= 20)
+ sd_event_exit(nd->event, 0);
+
+ if (last == 0) {
+ /* initial RT = IRT + RAND*IRT */
+ min = NDISC_ROUTER_SOLICITATION_INTERVAL -
+ NDISC_ROUTER_SOLICITATION_INTERVAL / 10;
+ max = NDISC_ROUTER_SOLICITATION_INTERVAL +
+ NDISC_ROUTER_SOLICITATION_INTERVAL / 10;
+ } else {
+ /* next RT = 2*RTprev + RAND*RTprev */
+ min = 2 * last - last / 10;
+ max = 2 * last + last / 10;
+ }
+
+ /* final RT > MRT */
+ if (last * 2 > NDISC_MAX_ROUTER_SOLICITATION_INTERVAL) {
+ min = NDISC_MAX_ROUTER_SOLICITATION_INTERVAL -
+ NDISC_MAX_ROUTER_SOLICITATION_INTERVAL / 10;
+ max = NDISC_MAX_ROUTER_SOLICITATION_INTERVAL +
+ NDISC_MAX_ROUTER_SOLICITATION_INTERVAL / 10;
+ }
+
+ format_timespan(time_string_min, FORMAT_TIMESPAN_MAX,
+ min, USEC_PER_MSEC);
+ format_timespan(time_string_nd, FORMAT_TIMESPAN_MAX,
+ nd->retransmit_time, USEC_PER_MSEC);
+ format_timespan(time_string_max, FORMAT_TIMESPAN_MAX,
+ max, USEC_PER_MSEC);
+
+ log_info("backoff timeout interval %2d %s%s <= %s <= %s",
+ count,
+ (last * 2 > NDISC_MAX_ROUTER_SOLICITATION_INTERVAL)? "(max) ": "",
+ time_string_min, time_string_nd, time_string_max);
+
+ assert_se(min <= nd->retransmit_time);
+ assert_se(max >= nd->retransmit_time);
+
+ last = nd->retransmit_time;
+
+ assert_se(sd_event_source_set_time(nd->timeout_event_source, 0) >= 0);
+
+ return 0;
+}
+
+static void test_timeout(void) {
+ sd_event *e;
+ sd_ndisc *nd;
+ usec_t time_now = now(clock_boottime_or_monotonic());
+
+ if (verbose)
+ printf("* %s\n", __FUNCTION__);
+
+ send_ra_function = test_timeout_value;
+
+ assert_se(sd_event_new(&e) >= 0);
+
+ assert_se(sd_ndisc_new(&nd) >= 0);
+ assert_se(nd);
+
+ test_timeout_nd = nd;
+
+ assert_se(sd_ndisc_attach_event(nd, e, 0) >= 0);
+
+ assert_se(sd_ndisc_set_ifindex(nd, 42) >= 0);
+ assert_se(sd_ndisc_set_mac(nd, &mac_addr) >= 0);
+
+ assert_se(sd_event_add_time(e, &test_hangcheck, clock_boottime_or_monotonic(),
+ time_now + 2U * USEC_PER_SEC, 0,
+ test_rs_hangcheck, NULL) >= 0);
+
+ assert_se(sd_ndisc_start(nd) >= 0);
+
+ sd_event_loop(e);
+
+ test_hangcheck = sd_event_source_unref(test_hangcheck);
+
+ nd = sd_ndisc_unref(nd);
+
+ sd_event_unref(e);
+}
+
int main(int argc, char *argv[]) {
- log_set_max_level(LOG_DEBUG);
- log_parse_environment();
- log_open();
+ test_setup_logging(LOG_DEBUG);
test_rs();
+ test_timeout();
return 0;
}
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