int icmp6_configure(Link *link) {
int r;
assert_return(link, -EINVAL);
r = sd_icmp6_nd_new(&link->icmp6_router_discovery);
if (r < 0)
return r;
r = sd_icmp6_nd_attach_event(link->icmp6_router_discovery, NULL, 0);
if (r < 0)
return r;
r = sd_icmp6_nd_set_mac(link->icmp6_router_discovery, &link->mac);
if (r < 0)
return r;
r = sd_icmp6_nd_set_index(link->icmp6_router_discovery, link->ifindex);
if (r < 0)
return r;
r = sd_icmp6_nd_set_callback(link->icmp6_router_discovery,
icmp6_router_handler, link);
return r;
}
static void test_prefixes(void) {
sd_event *e;
sd_icmp6_nd *nd;
if (verbose)
printf("* %s\n", __FUNCTION__);
send_ra_function = send_ra_prefixes;
assert_se(sd_event_new(&e) >= 0);
assert_se(sd_icmp6_nd_new(&nd) >= 0);
assert_se(nd);
assert_se(sd_icmp6_nd_attach_event(nd, e, 0) >= 0);
assert_se(sd_icmp6_nd_set_index(nd, 42) >= 0);
assert_se(sd_icmp6_nd_set_mac(nd, &mac_addr) >= 0);
assert_se(sd_icmp6_nd_set_callback(nd, test_prefixes_cb, e) >= 0);
assert_se(sd_icmp6_router_solicitation_start(nd) >= 0);
sd_event_loop(e);
nd = sd_icmp6_nd_unref(nd);
assert_se(!nd);
close(test_fd[1]);
sd_event_unref(e);
}
static void test_rs(sd_event *e) {
usec_t time_now = now(CLOCK_MONOTONIC);
sd_icmp6_nd *nd;
if (verbose)
printf("* %s\n", __FUNCTION__);
assert(sd_icmp6_nd_new(&nd) >= 0);
assert(nd);
assert(sd_icmp6_nd_attach_event(nd, e, 0) >= 0);
assert(sd_icmp6_nd_set_index(nd, 42) >= 0);
assert(sd_icmp6_nd_set_mac(nd, &mac_addr) >= 0);
assert(sd_icmp6_nd_set_callback(nd, test_rs_done, e) >= 0);
assert(sd_event_add_time(e, &test_hangcheck, CLOCK_MONOTONIC,
time_now + 2 *USEC_PER_SEC, 0,
test_rs_hangcheck, NULL) >= 0);
assert(sd_icmp6_nd_stop(nd) >= 0);
assert(sd_icmp6_router_solicitation_start(nd) >= 0);
assert(sd_icmp6_nd_stop(nd) >= 0);
assert(sd_icmp6_router_solicitation_start(nd) >= 0);
sd_event_loop(e);
test_hangcheck = sd_event_source_unref(test_hangcheck);
nd = sd_icmp6_nd_unref(nd);
assert(!nd);
close(test_fd[1]);
}
static void test_prefixes_cb(sd_icmp6_nd *nd, int event, void *userdata) {
sd_event *e = userdata;
struct {
struct in6_addr addr;
uint8_t prefixlen;
bool success;
} addrs[] = {
{ { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
63, true },
{ { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0x0d, 0xad,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
64, false },
{ { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
60, true },
{ { { { 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x9d, 0xab, 0xcd,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
64, true },
{ { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xed,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 } } },
63, false },
};
uint8_t prefixlen;
unsigned int i;
for (i = 0; i < ELEMENTSOF(addrs); i++) {
printf(" %s prefix %02x%02x:%02x%02x:%02x%02x:%02x%02x",
__FUNCTION__,
addrs[i].addr.s6_addr[0], addrs[i].addr.s6_addr[1],
addrs[i].addr.s6_addr[2], addrs[i].addr.s6_addr[3],
addrs[i].addr.s6_addr[4], addrs[i].addr.s6_addr[5],
addrs[i].addr.s6_addr[6], addrs[i].addr.s6_addr[7]);
if (addrs[i].success) {
assert_se(sd_icmp6_ra_get_prefixlen(nd, &addrs[i].addr,
&prefixlen) >= 0);
assert_se(addrs[i].prefixlen == prefixlen);
printf("/%d onlink\n", prefixlen);
} else {
assert_se(sd_icmp6_ra_get_prefixlen(nd, &addrs[i].addr,
&prefixlen) == -EADDRNOTAVAIL);
printf("/128 offlink\n");
}
}
send_ra_function = send_ra_short_prefix;
assert_se(sd_icmp6_nd_set_callback(nd, test_short_prefix_cb, e) >= 0);
assert_se(sd_icmp6_nd_stop(nd) >= 0);
assert_se(sd_icmp6_router_solicitation_start(nd) >= 0);
}
static void test_rs(void) {
sd_event *e;
sd_icmp6_nd *nd;
usec_t time_now = now(clock_boottime_or_monotonic());
if (verbose)
printf("* %s\n", __FUNCTION__);
send_ra_function = send_ra;
assert_se(sd_event_new(&e) >= 0);
assert_se(sd_icmp6_nd_new(&nd) >= 0);
assert_se(nd);
assert_se(sd_icmp6_nd_attach_event(nd, e, 0) >= 0);
assert_se(sd_icmp6_nd_set_index(nd, 42) >= 0);
assert_se(sd_icmp6_nd_set_mac(nd, &mac_addr) >= 0);
assert_se(sd_icmp6_nd_set_callback(nd, test_rs_done, 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_icmp6_nd_stop(nd) >= 0);
assert_se(sd_icmp6_router_solicitation_start(nd) >= 0);
assert_se(sd_icmp6_nd_stop(nd) >= 0);
assert_se(sd_icmp6_router_solicitation_start(nd) >= 0);
sd_event_loop(e);
test_hangcheck = sd_event_source_unref(test_hangcheck);
nd = sd_icmp6_nd_unref(nd);
assert_se(!nd);
close(test_fd[1]);
sd_event_unref(e);
}
