static int test_client_solicit(sd_event *e) {
sd_dhcp6_client *client;
usec_t time_now = now(clock_boottime_or_monotonic());
struct in6_addr address = { { { 0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x01 } } };
int val;
if (verbose)
printf("* %s\n", __FUNCTION__);
assert_se(sd_dhcp6_client_new(&client) >= 0);
assert_se(client);
assert_se(sd_dhcp6_client_attach_event(client, e, 0) >= 0);
assert_se(sd_dhcp6_client_set_ifindex(client, test_index) == 0);
assert_se(sd_dhcp6_client_set_mac(client, (const uint8_t *) &mac_addr,
sizeof (mac_addr),
ARPHRD_ETHER) >= 0);
assert_se(sd_dhcp6_client_set_fqdn(client, "host.lab.intra") == 1);
assert_se(sd_dhcp6_client_get_information_request(client, &val) >= 0);
assert_se(val == 0);
assert_se(sd_dhcp6_client_set_information_request(client, 42) >= 0);
assert_se(sd_dhcp6_client_get_information_request(client, &val) >= 0);
assert_se(val);
assert_se(sd_dhcp6_client_set_callback(client,
test_client_information_cb, e) >= 0);
assert_se(sd_event_add_time(e, &hangcheck, clock_boottime_or_monotonic(),
time_now + 2 * USEC_PER_SEC, 0,
test_hangcheck, NULL) >= 0);
assert_se(sd_dhcp6_client_set_local_address(client, &address) >= 0);
assert_se(sd_dhcp6_client_start(client) >= 0);
sd_event_loop(e);
hangcheck = sd_event_source_unref(hangcheck);
assert_se(!sd_dhcp6_client_unref(client));
test_dhcp_fd[1] = safe_close(test_dhcp_fd[1]);
return 0;
}
int dhcp6_request_address(Link *link, int ir) {
int r, inf_req;
bool running;
assert(link);
assert(link->dhcp6_client);
assert(in_addr_is_link_local(AF_INET6, (const union in_addr_union*)&link->ipv6ll_address) > 0);
r = sd_dhcp6_client_is_running(link->dhcp6_client);
if (r < 0)
return r;
else
running = !!r;
if (running) {
r = sd_dhcp6_client_get_information_request(link->dhcp6_client, &inf_req);
if (r < 0)
return r;
if (inf_req == ir)
return 0;
r = sd_dhcp6_client_stop(link->dhcp6_client);
if (r < 0)
return r;
} else {
r = sd_dhcp6_client_set_local_address(link->dhcp6_client, &link->ipv6ll_address);
if (r < 0)
return r;
}
r = sd_dhcp6_client_set_information_request(link->dhcp6_client, ir);
if (r < 0)
return r;
r = sd_dhcp6_client_start(link->dhcp6_client);
if (r < 0)
return r;
return 0;
}
static void test_client_information_cb(sd_dhcp6_client *client, int event,
void *userdata) {
sd_event *e = userdata;
sd_dhcp6_lease *lease;
struct in6_addr *addrs;
struct in6_addr address = { { { 0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x01 } } };
char **domains;
assert_se(e);
assert_se(event == SD_DHCP6_CLIENT_EVENT_INFORMATION_REQUEST);
assert_se(sd_dhcp6_client_get_lease(client, &lease) >= 0);
assert_se(sd_dhcp6_lease_get_domains(lease, &domains) == 1);
assert_se(!strcmp("lab.intra", domains[0]));
assert_se(domains[1] == NULL);
assert_se(sd_dhcp6_lease_get_dns(lease, &addrs) == 1);
assert_se(!memcmp(addrs, &msg_advertise[124], 16));
assert_se(sd_dhcp6_lease_get_ntp_addrs(lease, &addrs) == 1);
assert_se(!memcmp(addrs, &msg_advertise[159], 16));
if (verbose)
printf(" got DHCPv6 event %d\n", event);
assert_se(sd_dhcp6_client_set_information_request(client, false) == -EBUSY);
assert_se(sd_dhcp6_client_set_callback(client, NULL, e) >= 0);
assert_se(sd_dhcp6_client_stop(client) >= 0);
assert_se(sd_dhcp6_client_set_information_request(client, false) >= 0);
assert_se(sd_dhcp6_client_set_callback(client,
test_client_solicit_cb, e) >= 0);
assert_se(sd_dhcp6_client_set_local_address(client, &address) >= 0);
assert_se(sd_dhcp6_client_start(client) >= 0);
}
int dhcp6_request_address(Link *link) {
int r, inf_req;
bool running;
assert(link);
assert(link->dhcp6_client);
r = sd_dhcp6_client_get_information_request(link->dhcp6_client, &inf_req);
if (r < 0)
return r;
if (!inf_req)
return 0;
r = sd_dhcp6_client_is_running(link->dhcp6_client);
if (r < 0)
return r;
else
running = !!r;
if (running) {
r = sd_dhcp6_client_stop(link->dhcp6_client);
if (r < 0)
return r;
}
r = sd_dhcp6_client_set_information_request(link->dhcp6_client, false);
if (r < 0)
return r;
if (running) {
r = sd_dhcp6_client_start(link->dhcp6_client);
if (r < 0)
return r;
}
return 0;
}
static int dhcp6_configure(Link *link, int event) {
int r;
bool information_request;
assert_return(link, -EINVAL);
assert_return(IN_SET(event, SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_TIMEOUT,
SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_OTHER,
SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_MANAGED), -EINVAL);
link->dhcp6_configured = false;
if (link->dhcp6_client) {
r = sd_dhcp6_client_get_information_request(link->dhcp6_client,
&information_request);
if (r < 0) {
log_link_warning_errno(link, r, "Could not get DHCPv6 Information request setting: %m");
goto error;
}
if (information_request && event != SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_OTHER) {
r = sd_dhcp6_client_stop(link->dhcp6_client);
if (r < 0) {
log_link_warning_errno(link, r, "Could not stop DHCPv6 while setting Managed mode: %m");
goto error;
}
r = sd_dhcp6_client_set_information_request(link->dhcp6_client,
false);
if (r < 0) {
log_link_warning_errno(link, r, "Could not unset DHCPv6 Information request: %m");
goto error;
}
}
r = sd_dhcp6_client_start(link->dhcp6_client);
if (r < 0 && r != -EALREADY) {
log_link_warning_errno(link, r, "Could not restart DHCPv6: %m");
goto error;
}
if (r == -EALREADY)
link->dhcp6_configured = true;
return r;
}
r = sd_dhcp6_client_new(&link->dhcp6_client);
if (r < 0)
goto error;
r = sd_dhcp6_client_attach_event(link->dhcp6_client, NULL, 0);
if (r < 0)
goto error;
r = sd_dhcp6_client_set_mac(link->dhcp6_client,
(const uint8_t *) &link->mac,
sizeof (link->mac), ARPHRD_ETHER);
if (r < 0)
goto error;
r = sd_dhcp6_client_set_index(link->dhcp6_client, link->ifindex);
if (r < 0)
goto error;
r = sd_dhcp6_client_set_callback(link->dhcp6_client, dhcp6_handler,
link);
if (r < 0)
goto error;
if (event == SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_OTHER) {
r = sd_dhcp6_client_set_information_request(link->dhcp6_client,
true);
if (r < 0)
goto error;
}
r = sd_dhcp6_client_start(link->dhcp6_client);
if (r < 0)
goto error;
return r;
error:
link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
return r;
}
static gboolean
ip6_start (NMDhcpClient *client,
const char *dhcp_anycast_addr,
const struct in6_addr *ll_addr,
gboolean info_only,
NMSettingIP6ConfigPrivacy privacy,
const GByteArray *duid)
{
NMDhcpSystemd *self = NM_DHCP_SYSTEMD (client);
NMDhcpSystemdPrivate *priv = NM_DHCP_SYSTEMD_GET_PRIVATE (self);
const char *iface = nm_dhcp_client_get_iface (client);
const GByteArray *hwaddr;
int r, i;
g_assert (priv->client4 == NULL);
g_assert (priv->client6 == NULL);
g_return_val_if_fail (duid != NULL, FALSE);
g_free (priv->lease_file);
priv->lease_file = get_leasefile_path (iface, nm_dhcp_client_get_uuid (client), TRUE);
priv->info_only = info_only;
r = sd_dhcp6_client_new (&priv->client6);
if (r < 0) {
_LOGW ("failed to create client (%d)", r);
return FALSE;
}
_LOGT ("dhcp-client6: set %p", priv->client4);
if (info_only)
sd_dhcp6_client_set_information_request (priv->client6, 1);
/* NM stores the entire DUID which includes the uint16 "type", while systemd
* wants the type passed separately from the following data.
*/
r = sd_dhcp6_client_set_duid (priv->client6,
ntohs (((const guint16 *) duid->data)[0]),
duid->data + 2,
duid->len - 2);
if (r < 0) {
_LOGW ("failed to set DUID (%d)", r);
return FALSE;
}
r = sd_dhcp6_client_attach_event (priv->client6, NULL, 0);
if (r < 0) {
_LOGW ("failed to attach event (%d)", r);
goto error;
}
hwaddr = nm_dhcp_client_get_hw_addr (client);
if (hwaddr) {
r = sd_dhcp6_client_set_mac (priv->client6,
hwaddr->data,
hwaddr->len,
get_arp_type (hwaddr));
if (r < 0) {
_LOGW ("failed to set MAC address (%d)", r);
goto error;
}
}
r = sd_dhcp6_client_set_index (priv->client6, nm_dhcp_client_get_ifindex (client));
if (r < 0) {
_LOGW ("failed to set ifindex (%d)", r);
goto error;
}
r = sd_dhcp6_client_set_callback (priv->client6, dhcp6_event_cb, client);
if (r < 0) {
_LOGW ("failed to set callback (%d)", r);
goto error;
}
/* Add requested options */
for (i = 0; dhcp6_requests[i].name; i++) {
if (dhcp6_requests[i].include)
sd_dhcp6_client_set_request_option (priv->client6, dhcp6_requests[i].num);
}
r = sd_dhcp6_client_set_local_address (priv->client6, ll_addr);
if (r < 0) {
_LOGW ("failed to set local address (%d)", r);
goto error;
}
r = sd_dhcp6_client_start (priv->client6);
if (r < 0) {
_LOGW ("failed to start client (%d)", r);
goto error;
}
return TRUE;
error:
sd_dhcp6_client_unref (priv->client6);
priv->client6 = NULL;
return FALSE;
}
static int dhcp6_configure(Link *link, int event) {
int r;
bool information_request;
assert_return(link, -EINVAL);
if (link->dhcp6_client) {
if (event != ICMP6_EVENT_ROUTER_ADVERTISMENT_MANAGED)
return 0;
r = sd_dhcp6_client_get_information_request(link->dhcp6_client,
&information_request);
if (r < 0) {
log_link_warning(link, "Could not get DHCPv6 Information request setting: %s",
strerror(-r));
link->dhcp6_client =
sd_dhcp6_client_unref(link->dhcp6_client);
return r;
}
if (!information_request)
return r;
r = sd_dhcp6_client_set_information_request(link->dhcp6_client,
false);
if (r < 0) {
log_link_warning(link, "Could not unset DHCPv6 Information request: %s",
strerror(-r));
link->dhcp6_client =
sd_dhcp6_client_unref(link->dhcp6_client);
return r;
}
r = sd_dhcp6_client_start(link->dhcp6_client);
if (r < 0) {
log_link_warning(link, "Could not restart DHCPv6 after enabling Information request: %s",
strerror(-r));
link->dhcp6_client =
sd_dhcp6_client_unref(link->dhcp6_client);
return r;
}
return r;
}
r = sd_dhcp6_client_new(&link->dhcp6_client);
if (r < 0)
return r;
r = sd_dhcp6_client_attach_event(link->dhcp6_client, NULL, 0);
if (r < 0) {
link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
return r;
}
r = sd_dhcp6_client_set_mac(link->dhcp6_client,
(const uint8_t *) &link->mac,
sizeof (link->mac), ARPHRD_ETHER);
if (r < 0) {
link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
return r;
}
r = sd_dhcp6_client_set_index(link->dhcp6_client, link->ifindex);
if (r < 0) {
link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
return r;
}
r = sd_dhcp6_client_set_callback(link->dhcp6_client, dhcp6_handler,
link);
if (r < 0) {
link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
return r;
}
if (event == ICMP6_EVENT_ROUTER_ADVERTISMENT_OTHER) {
r = sd_dhcp6_client_set_information_request(link->dhcp6_client,
true);
if (r < 0) {
link->dhcp6_client =
sd_dhcp6_client_unref(link->dhcp6_client);
return r;
}
}
r = sd_dhcp6_client_start(link->dhcp6_client);
if (r < 0)
link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
return r;
}