X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fnetwork%2Fnetworkd-manager.c;h=5ab9ba0bafd09d240e104e44970383f382808bbf;hb=5972fe953ec56c77936a1e612ca87d8a0e6c0c64;hp=3b542149c0c132c5924b5aff16fe8b69f1f72db3;hpb=7ae4ef6d23bc884d0e0ee2ec9cf87ec99d0686bb;p=elogind.git

diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index 3b542149c..5ab9ba0ba 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -55,7 +55,7 @@ int manager_new(Manager **ret) {
                 return r;
 
         r = sd_bus_default_system(&m->bus);
-        if (r < 0)
+        if (r < 0 && r != -ENOENT) /* TODO: drop when we can rely on kdbus */
                 return r;
 
         m->udev = udev_new();
@@ -288,6 +288,11 @@ int manager_rtnl_listen(Manager *m) {
 int manager_bus_listen(Manager *m) {
         int r;
 
+        assert(m->event);
+
+        if (!m->bus) /* TODO: drop when we can rely on kdbus */
+                return 0;
+
         r = sd_bus_attach_event(m->bus, m->event, 0);
         if (r < 0)
                 return r;
@@ -320,6 +325,7 @@ int manager_update_resolv_conf(Manager *m) {
         Link *link;
         Iterator i;
         unsigned count = 0;
+        const char *domainname = NULL;
         int r;
 
         assert(m);
@@ -334,19 +340,31 @@ int manager_update_resolv_conf(Manager *m) {
 
         fchmod(fileno(f), 0644);
 
-        fputs("# This file is managed by systemd-networkd(8). Do not edit.\n", f);
+        fputs("# This file is managed by systemd-networkd(8). Do not edit.\n#\n"
+              "# Third party programs must not access this file directly, but\n"
+              "# only through the symlink at /etc/resolv.conf. To manage\n"
+              "# resolv.conf(5) in a different way, replace the symlink by a\n"
+              "# static file or a different symlink.\n\n", f);
 
         HASHMAP_FOREACH(link, m->links, i) {
                 if (link->dhcp) {
                         struct in_addr *nameservers;
                         size_t nameservers_size;
 
-                        r = sd_dhcp_client_get_dns(link->dhcp, &nameservers, &nameservers_size);
-                        if (r >= 0) {
-                                unsigned j;
+                        if (link->network->dhcp_dns) {
+                                r = sd_dhcp_client_get_dns(link->dhcp, &nameservers, &nameservers_size);
+                                if (r >= 0) {
+                                        unsigned j;
+
+                                        for (j = 0; j < nameservers_size; j++)
+                                                append_dns(f, &nameservers[j], AF_INET, &count);
+                                }
+                        }
 
-                                for (j = 0; j < nameservers_size; j++)
-                                        append_dns(f, &nameservers[j], AF_INET, &count);
+                        if (link->network->dhcp_domainname && !domainname) {
+                                r = sd_dhcp_client_get_domainname(link->dhcp, &domainname);
+                                if (r >= 0)
+                                       fprintf(f, "domain %s\n", domainname);
                         }
                 }
         }