networkd: ipv4ll - default to setting up ipv4ll routes

[elogind.git] / src / network / networkd-network.c

diff --git a/src/network/networkd-network.c b/src/network/networkd-network.c
index 1b8856afebdd9397b8a783f719a9616e779266f6..84b6973f55c9b5012252ee7a571b19ed59097f54 100644 (file)
--- a/src/network/networkd-network.c
+++ b/src/network/networkd-network.c
@@ -23,6 +23,7 @@
 #include <net/if.h>
 
 #include "networkd.h"
+#include "networkd-netdev.h"
 #include "network-internal.h"
 #include "path-util.h"
 #include "conf-files.h"
@@ -47,8 +48,8 @@ static int network_load_one(Manager *manager, const char *filename) {
                         return -errno;
         }
 
-        if (null_or_empty_path(filename)) {
-                log_debug("skipping empty file: %s", filename);
+        if (null_or_empty_fd(fileno(file))) {
+                log_debug("Skipping empty file: %s", filename);
                 return 0;
         }
 
@@ -65,10 +66,14 @@ static int network_load_one(Manager *manager, const char *filename) {
         if (!network->vlans)
                 return log_oom();
 
-        network->macvlans = hashmap_new(uint64_hash_func, uint64_compare_func);
+        network->macvlans = hashmap_new(string_hash_func, string_compare_func);
         if (!network->macvlans)
                 return log_oom();
 
+        network->vxlans = hashmap_new(string_hash_func, string_compare_func);
+        if (!network->vxlans)
+                return log_oom();
+
         network->addresses_by_section = hashmap_new(uint64_hash_func, uint64_compare_func);
         if (!network->addresses_by_section)
                 return log_oom();
@@ -81,16 +86,21 @@ static int network_load_one(Manager *manager, const char *filename) {
         if (!network->filename)
                 return log_oom();
 
+        network->ipv4ll_route = true;
+
+        network->dhcp_ntp = true;
         network->dhcp_dns = true;
         network->dhcp_hostname = true;
         network->dhcp_domainname = true;
-
-        r = config_parse(NULL, filename, file, "Match\0Network\0Address\0Route\0DHCPv4\0", config_item_perf_lookup,
-                        (void*) network_network_gperf_lookup, false, false, network);
-        if (r < 0) {
-                log_warning("Could not parse config file %s: %s", filename, strerror(-r));
+        network->dhcp_routes = true;
+        network->dhcp_sendhost = true;
+
+        r = config_parse(NULL, filename, file,
+                         "Match\0Network\0Address\0Route\0DHCP\0DHCPv4\0",
+                         config_item_perf_lookup, network_network_gperf_lookup,
+                         false, false, true, network);
+        if (r < 0)
                 return r;
-        }
 
         LIST_PREPEND(networks, manager->networks, network);
 
@@ -159,16 +169,17 @@ void network_free(Network *network) {
         free(network->match_name);
 
         free(network->description);
+        free(network->dhcp_vendor_class_identifier);
 
-        while ((address = network->dns)) {
-                LIST_REMOVE(addresses, network->dns, address);
-                address_free(address);
-        }
+        strv_free(network->ntp);
+        strv_free(network->dns);
 
         netdev_unref(network->bridge);
 
         netdev_unref(network->bond);
 
+        netdev_unref(network->tunnel);
+
         HASHMAP_FOREACH(netdev, network->vlans, i)
                 netdev_unref(netdev);
         hashmap_free(network->vlans);
@@ -177,6 +188,10 @@ void network_free(Network *network) {
                 netdev_unref(netdev);
         hashmap_free(network->macvlans);
 
+        HASHMAP_FOREACH(netdev, network->vxlans, i)
+                netdev_unref(netdev);
+        hashmap_free(network->vxlans);
+
         while ((route = network->static_routes))
                 route_free(route);
 
@@ -217,7 +232,7 @@ int network_get(Manager *manager, struct udev_device *device,
                                      udev_device_get_property_value(device, "ID_NET_DRIVER"),
                                      udev_device_get_devtype(device),
                                      ifname)) {
-                        log_debug("%*s: found matching network '%s'", IFNAMSIZ, ifname,
+                        log_debug("%-*s: found matching network '%s'", IFNAMSIZ, ifname,
                                   network->filename);
                         *ret = network;
                         return 0;
@@ -234,7 +249,27 @@ int network_apply(Manager *manager, Network *network, Link *link) {
 
         link->network = network;
 
-        if (network->dns) {
+        if (network->ipv4ll_route) {
+                Route *route;
+
+                r = route_new_static(network, 0, &route);
+                if (r < 0)
+                        return r;
+
+                r = inet_pton(AF_INET, "169.254.0.0", &route->dst_addr.in);
+                if (r == 0)
+                        return -EINVAL;
+                if (r < 0)
+                        return -errno;
+
+                route->family = AF_INET;
+                route->dst_prefixlen = 16;
+                route->scope = RT_SCOPE_LINK;
+                route->metrics = IPV4LL_ROUTE_METRIC;
+                route->protocol = RTPROT_STATIC;
+        }
+
+        if (network->dns || network->ntp) {
                 r = link_save(link);
                 if (r < 0)
                         return r;
@@ -303,10 +338,11 @@ int config_parse_netdev(const char *unit,
 
                 break;
         case NETDEV_KIND_VLAN:
-                r = hashmap_put(network->vlans, &netdev->vlanid, netdev);
+                r = hashmap_put(network->vlans, netdev->ifname, netdev);
                 if (r < 0) {
                         log_syntax(unit, LOG_ERR, filename, line, EINVAL,
-                                   "Can not add VLAN to network: %s", rvalue);
+                                   "Can not add VLAN '%s' to network: %s",
+                                   rvalue, strerror(-r));
                         return 0;
                 }
 
@@ -315,7 +351,18 @@ int config_parse_netdev(const char *unit,
                 r = hashmap_put(network->macvlans, netdev->ifname, netdev);
                 if (r < 0) {
                         log_syntax(unit, LOG_ERR, filename, line, EINVAL,
-                                   "Can not add MACVLAN to network: %s", rvalue);
+                                   "Can not add MACVLAN '%s' to network: %s",
+                                   rvalue, strerror(-r));
+                        return 0;
+                }
+
+                break;
+        case NETDEV_KIND_VXLAN:
+                r = hashmap_put(network->vxlans, netdev->ifname, netdev);
+                if (r < 0) {
+                        log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                                   "Can not add VXLAN '%s' to network: %s",
+                                   rvalue, strerror(-r));
                         return 0;
                 }
 
@@ -357,7 +404,8 @@ int config_parse_tunnel(const char *unit,
 
         if (netdev->kind != NETDEV_KIND_IPIP &&
             netdev->kind != NETDEV_KIND_SIT &&
-            netdev->kind != NETDEV_KIND_GRE) {
+            netdev->kind != NETDEV_KIND_GRE &&
+            netdev->kind != NETDEV_KIND_VTI) {
                 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
                            "NetDev is not a tunnel, ignoring assignment: %s", rvalue);
                 return 0;