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;
return 0;
}
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 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 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;
}
static int test_client_basic(sd_event *e) {
sd_dhcp6_client *client;
int v;
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, 15) == 0);
assert_se(sd_dhcp6_client_set_ifindex(client, -42) == -EINVAL);
assert_se(sd_dhcp6_client_set_ifindex(client, -1) == 0);
assert_se(sd_dhcp6_client_set_ifindex(client, 42) >= 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") == 1);
assert_se(sd_dhcp6_client_set_fqdn(client, "host.domain") == 1);
assert_se(sd_dhcp6_client_set_fqdn(client, NULL) == 1);
assert_se(sd_dhcp6_client_set_fqdn(client, "~host") == -EINVAL);
assert_se(sd_dhcp6_client_set_fqdn(client, "~host.domain") == -EINVAL);
assert_se(sd_dhcp6_client_set_request_option(client, SD_DHCP6_OPTION_CLIENTID) == -EINVAL);
assert_se(sd_dhcp6_client_set_request_option(client, SD_DHCP6_OPTION_DNS_SERVERS) == -EEXIST);
assert_se(sd_dhcp6_client_set_request_option(client, SD_DHCP6_OPTION_NTP_SERVER) == -EEXIST);
assert_se(sd_dhcp6_client_set_request_option(client, SD_DHCP6_OPTION_SNTP_SERVERS) == -EEXIST);
assert_se(sd_dhcp6_client_set_request_option(client, SD_DHCP6_OPTION_DOMAIN_LIST) == -EEXIST);
assert_se(sd_dhcp6_client_set_request_option(client, 10) == -EINVAL);
assert_se(sd_dhcp6_client_set_information_request(client, 1) >= 0);
v = 0;
assert_se(sd_dhcp6_client_get_information_request(client, &v) >= 0);
assert_se(v);
assert_se(sd_dhcp6_client_set_information_request(client, 0) >= 0);
v = 42;
assert_se(sd_dhcp6_client_get_information_request(client, &v) >= 0);
assert_se(v == 0);
v = 0;
assert_se(sd_dhcp6_client_get_address_request(client, &v) >= 0);
assert_se(v);
v = 0;
assert_se(sd_dhcp6_client_set_address_request(client, 1) >= 0);
assert_se(sd_dhcp6_client_get_address_request(client, &v) >= 0);
assert_se(v);
v = 42;
assert_se(sd_dhcp6_client_set_address_request(client, 1) >= 0);
assert_se(sd_dhcp6_client_get_address_request(client, &v) >= 0);
assert_se(v);
assert_se(sd_dhcp6_client_set_address_request(client, 1) >= 0);
assert_se(sd_dhcp6_client_set_prefix_delegation(client, 1) >= 0);
v = 0;
assert_se(sd_dhcp6_client_get_address_request(client, &v) >= 0);
assert_se(v);
v = 0;
assert_se(sd_dhcp6_client_get_prefix_delegation(client, &v) >= 0);
assert_se(v);
assert_se(sd_dhcp6_client_set_callback(client, NULL, NULL) >= 0);
assert_se(sd_dhcp6_client_detach_event(client) >= 0);
assert_se(!sd_dhcp6_client_unref(client));
return 0;
}
