address_free(address);
}
+ while ((address = link->pool_addresses)) {
+ LIST_REMOVE(addresses, link->pool_addresses, address);
+ address_free(address);
+ }
+
sd_dhcp_client_unref(link->dhcp_client);
sd_dhcp_lease_unref(link->dhcp_lease);
free(link->lease_file);
sd_ipv4ll_unref(link->ipv4ll);
+ sd_dhcp6_client_unref(link->dhcp6_client);
+ sd_icmp6_nd_unref(link->icmp6_router_discovery);
hashmap_remove(link->manager->links, &link->ifindex);
}
}
+ if (link->network->dhcp6) {
+ assert(link->icmp6_router_discovery);
+
+ if (link->dhcp6_client) {
+ k = sd_dhcp6_client_stop(link->dhcp6_client);
+ if (k < 0) {
+ log_warning_link(link, "Could not stop DHCPv6 client: %s", strerror(-r));
+ r = k;
+ }
+ }
+
+ k = sd_icmp6_nd_stop(link->icmp6_router_discovery);
+ if (k < 0) {
+ log_warning_link(link, "Could not stop ICMPv6 router discovery: %s", strerror(-r));
+ r = k;
+ }
+ }
+
return r;
}
link_save(link);
}
+static Address* link_find_dhcp_server_address(Link *link) {
+ Address *address;
+
+ assert(link);
+ assert(link->network);
+
+ /* The the first statically configured address if there is any */
+ LIST_FOREACH(addresses, address, link->network->static_addresses) {
+
+ if (address->family != AF_INET)
+ continue;
+
+ if (in_addr_null(address->family, &address->in_addr))
+ continue;
+
+ return address;
+ }
+
+ /* If that didn't work, find a suitable address we got from the pool */
+ LIST_FOREACH(addresses, address, link->pool_addresses) {
+ if (address->family != AF_INET)
+ continue;
+
+ return address;
+ }
+
+ return NULL;
+}
+
static int link_enter_configured(Link *link) {
int r;
assert(link->network);
assert(link->state == LINK_STATE_SETTING_ROUTES);
+ if (link->network->dhcp_server &&
+ !sd_dhcp_server_is_running(link->dhcp_server)) {
+ struct in_addr pool_start;
+ Address *address;
+
+ address = link_find_dhcp_server_address(link);
+ if (!address) {
+ log_warning_link(link, "Failed to find suitable address for DHCPv4 server instance.");
+ link_enter_failed(link);
+ return 0;
+ }
- if (link->network->dhcp_server) {
log_debug_link(link, "offering DHCPv4 leases");
+ r = sd_dhcp_server_set_address(link->dhcp_server, &address->in_addr.in);
+ if (r < 0)
+ return r;
+
+ /* offer 32 addresses starting from the address following the server address */
+ pool_start.s_addr = htobe32(be32toh(address->in_addr.in.s_addr) + 1);
+ r = sd_dhcp_server_set_lease_pool(link->dhcp_server,
+ &pool_start, 32);
+ if (r < 0)
+ return r;
+
+ /* TODO:
+ r = sd_dhcp_server_set_router(link->dhcp_server,
+ &main_address->in_addr.in);
+ if (r < 0)
+ return r;
+
+ r = sd_dhcp_server_set_prefixlen(link->dhcp_server,
+ main_address->prefixlen);
+ if (r < 0)
+ return r;
+ */
+
r = sd_dhcp_server_start(link->dhcp_server);
if (r < 0) {
log_warning_link(link, "could not start DHCPv4 server "
return r;
}
- link_unref(link);
+ link_ref(link);
return 0;
}
}
}
+static void dhcp6_handler(sd_dhcp6_client *client, int event, void *userdata) {
+ Link *link = userdata;
+
+ assert(link);
+ assert(link->network);
+ assert(link->manager);
+
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
+ return;
+
+ switch(event) {
+ case DHCP6_EVENT_STOP:
+ case DHCP6_EVENT_RESEND_EXPIRE:
+ case DHCP6_EVENT_RETRANS_MAX:
+ case DHCP6_EVENT_IP_ACQUIRE:
+ log_debug_link(link, "DHCPv6 event %d", event);
+
+ break;
+
+ default:
+ if (event < 0)
+ log_warning_link(link, "DHCPv6 error: %s",
+ strerror(-event));
+ else
+ log_warning_link(link, "DHCPv6 unknown event: %d",
+ event);
+ return;
+ }
+}
+
+static void icmp6_router_handler(sd_icmp6_nd *nd, int event, void *userdata) {
+ Link *link = userdata;
+ int r;
+
+ assert(link);
+ assert(link->network);
+ assert(link->manager);
+
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
+ return;
+
+ switch(event) {
+ case ICMP6_EVENT_ROUTER_ADVERTISMENT_NONE:
+ case ICMP6_EVENT_ROUTER_ADVERTISMENT_OTHER:
+ return;
+
+ case ICMP6_EVENT_ROUTER_ADVERTISMENT_TIMEOUT:
+ case ICMP6_EVENT_ROUTER_ADVERTISMENT_MANAGED:
+ break;
+
+ default:
+ if (event < 0)
+ log_warning_link(link, "ICMPv6 error: %s",
+ strerror(-event));
+ else
+ log_warning_link(link, "ICMPv6 unknown event: %d",
+ event);
+
+ return;
+ }
+
+ if (link->dhcp6_client)
+ return;
+
+ r = sd_dhcp6_client_new(&link->dhcp6_client);
+ if (r < 0)
+ return;
+
+ 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 = sd_dhcp6_client_set_mac(link->dhcp6_client, &link->mac);
+ if (r < 0) {
+ link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
+ return;
+ }
+
+ 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 = 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 = sd_dhcp6_client_start(link->dhcp6_client);
+ if (r < 0)
+ link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
+}
+
static int link_acquire_conf(Link *link) {
int r;
}
}
+ if (link->network->dhcp6) {
+ assert(link->icmp6_router_discovery);
+
+ log_debug_link(link, "discovering IPv6 routers");
+
+ r = sd_icmp6_router_solicitation_start(link->icmp6_router_discovery);
+ if (r < 0) {
+ log_warning_link(link, "could not start IPv6 router discovery");
+ return r;
+ }
+ }
+
return 0;
}
}
if (link->network->dhcp_server) {
- Address *address;
-
r = sd_dhcp_server_new(&link->dhcp_server, link->ifindex);
if (r < 0)
return r;
r = sd_dhcp_server_attach_event(link->dhcp_server, NULL, 0);
if (r < 0)
return r;
+ }
- LIST_FOREACH(addresses, address,
- link->network->static_addresses) {
- struct in_addr pool_start;
-
- if (address->family != AF_INET)
- continue;
-
- /* currently this is picked essentially at random */
- r = sd_dhcp_server_set_address(link->dhcp_server,
- &address->in_addr.in);
- if (r < 0)
- return r;
+ if (link->network->dhcp6) {
+ r = sd_icmp6_nd_new(&link->icmp6_router_discovery);
+ if (r < 0)
+ return r;
- /* offer 32 addresses starting from the address following the server address */
- pool_start.s_addr = htobe32(be32toh(address->in_addr.in.s_addr) + 1);
- r = sd_dhcp_server_set_lease_pool(link->dhcp_server,
- &pool_start, 32);
- if (r < 0)
- return r;
+ r = sd_icmp6_nd_attach_event(link->icmp6_router_discovery,
+ NULL, 0);
+ if (r < 0)
+ return r;
- break;
- }
+ r = sd_icmp6_nd_set_mac(link->icmp6_router_discovery,
+ &link->mac);
+ if (r < 0)
+ return r;
- /* TODO:
- r = sd_dhcp_server_set_router(link->dhcp_server,
- &main_address->in_addr.in);
+ r = sd_icmp6_nd_set_index(link->icmp6_router_discovery,
+ link->ifindex);
if (r < 0)
return r;
- r = sd_dhcp_server_set_prefixlen(link->dhcp_server,
- main_address->prefixlen);
+ r = sd_icmp6_nd_set_callback(link->icmp6_router_discovery,
+ icmp6_router_handler, link);
if (r < 0)
return r;
- */
}
if (link_has_carrier(link->flags, link->kernel_operstate)) {
return r;
}
}
+
+ if (link->dhcp6_client) {
+ r = sd_dhcp6_client_set_mac(link->dhcp6_client,
+ &link->mac);
+ if (r < 0) {
+ log_warning_link(link, "Could not update MAC address in DHCPv6 client: %s",
+ strerror(-r));
+ return r;
+ }
+ }
}
}
~ianmdlvl / elogind.git / blobdiff