X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fnetwork%2Fnetworkd-link.c;h=e2d61ae490f4024b986e13858018f0428ff53a19;hb=12e0f830f592ec4c6bb49ac7ae1e0e84f74105e3;hp=3ef7622f480af624dc486d42d5b8eb6246571b1a;hpb=cf6a8911738fe2635a5210769d5348b05b166691;p=elogind.git

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 3ef7622f4..e2d61ae49 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -85,22 +85,33 @@ void link_free(Link *link) {
         free(link);
 }
 
-int link_add(Manager *m, struct udev_device *device, Link **ret) {
+int link_get(Manager *m, int ifindex, Link **ret) {
         Link *link;
+        uint64_t ifindex_64;
+
+        assert(m);
+        assert(m->links);
+        assert(ifindex);
+        assert(ret);
+
+        ifindex_64 = ifindex;
+        link = hashmap_get(m->links, &ifindex_64);
+        if (!link)
+                return -ENODEV;
+
+        *ret = link;
+
+        return 0;
+}
+
+int link_add(Manager *m, struct udev_device *device, Link **ret) {
+        Link *link = NULL;
         Network *network;
         int r;
-        uint64_t ifindex;
 
         assert(m);
         assert(device);
 
-        ifindex = udev_device_get_ifindex(device);
-        link = hashmap_get(m->links, &ifindex);
-        if (link) {
-                *ret = link;
-                return -EEXIST;
-        }
-
         r = link_new(m, device, &link);
         if (r < 0)
                 return r;
@@ -384,11 +395,11 @@ static int set_hostname(sd_bus *bus, const char *hostname) {
 
         r = sd_bus_message_new_method_call(
                         bus,
+                        &m,
                         "org.freedesktop.hostname1",
                         "/org/freedesktop/hostname1",
                         "org.freedesktop.hostname1",
-                        "SetHostname",
-                        &m);
+                        "SetHostname");
         if (r < 0)
                 return r;
 
@@ -435,7 +446,8 @@ static int link_set_mtu(Link *link, uint32_t mtu) {
 
         log_debug_link(link, "setting MTU: %" PRIu32, mtu);
 
-        r = sd_rtnl_message_link_new(RTM_SETLINK, link->ifindex, &req);
+        r = sd_rtnl_message_new_link(link->manager->rtnl, &req,
+                                     RTM_SETLINK, link->ifindex);
         if (r < 0) {
                 log_error_link(link, "Could not allocate RTM_SETLINK message");
                 return r;
@@ -467,6 +479,8 @@ static int dhcp_lease_lost(Link *link) {
         assert(link);
         assert(link->dhcp_lease);
 
+        log_warning_link(link, "DHCP lease lost");
+
         r = address_new_dynamic(&address);
         if (r >= 0) {
                 sd_dhcp_lease_get_address(link->dhcp_lease, &addr);
@@ -495,9 +509,14 @@ static int dhcp_lease_lost(Link *link) {
         }
 
         if (link->network->dhcp_hostname) {
-                r = set_hostname(link->manager->bus, "");
-                if (r < 0)
-                        log_error("Failed to reset transient hostname");
+                const char *hostname = NULL;
+
+                r = sd_dhcp_lease_get_hostname(link->dhcp_lease, &hostname);
+                if (r >= 0 && hostname) {
+                        r = set_hostname(link->manager->bus, "");
+                        if (r < 0)
+                                log_error("Failed to reset transient hostname");
+                }
         }
 
         link->dhcp_lease = sd_dhcp_lease_unref(link->dhcp_lease);
@@ -626,10 +645,12 @@ static void dhcp_handler(sd_dhcp_client *client, int event, void *userdata) {
                                 return;
                         }
 
-                        r = dhcp_lease_lost(link);
-                        if (r < 0) {
-                                link_enter_failed(link);
-                                return;
+                        if (link->dhcp_lease) {
+                                r = dhcp_lease_lost(link);
+                                if (r < 0) {
+                                        link_enter_failed(link);
+                                        return;
+                                }
                         }
 
                         if (event == DHCP_EVENT_IP_CHANGE) {
@@ -792,7 +813,8 @@ static int link_up(Link *link) {
 
         log_debug_link(link, "bringing link up");
 
-        r = sd_rtnl_message_link_new(RTM_SETLINK, link->ifindex, &req);
+        r = sd_rtnl_message_new_link(link->manager->rtnl, &req,
+                                     RTM_SETLINK, link->ifindex);
         if (r < 0) {
                 log_error_link(link, "Could not allocate RTM_SETLINK message");
                 return r;
@@ -922,7 +944,8 @@ static int link_enter_enslave(Link *link) {
         return 0;
 }
 
-static int link_get_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+static int link_getlink_handler(sd_rtnl *rtnl, sd_rtnl_message *m,
+                                void *userdata) {
         Link *link = userdata;
         int r;
 
@@ -949,7 +972,7 @@ static int link_get_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
         return 1;
 }
 
-static int link_get(Link *link) {
+static int link_getlink(Link *link) {
         _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
         int r;
 
@@ -959,13 +982,15 @@ static int link_get(Link *link) {
 
         log_debug_link(link, "requesting link status");
 
-        r = sd_rtnl_message_link_new(RTM_GETLINK, link->ifindex, &req);
+        r = sd_rtnl_message_new_link(link->manager->rtnl, &req,
+                                     RTM_GETLINK, link->ifindex);
         if (r < 0) {
                 log_error_link(link, "Could not allocate RTM_GETLINK message");
                 return r;
         }
 
-        r = sd_rtnl_call_async(link->manager->rtnl, req, link_get_handler, link, 0, NULL);
+        r = sd_rtnl_call_async(link->manager->rtnl, req, link_getlink_handler,
+                               link, 0, NULL);
         if (r < 0) {
                 log_error_link(link,
                                "Could not send rtnetlink message: %s", strerror(-r));
@@ -982,7 +1007,7 @@ int link_configure(Link *link) {
         assert(link->network);
         assert(link->state == _LINK_STATE_INVALID);
 
-        r = link_get(link);
+        r = link_getlink(link);
         if (r < 0) {
                 link_enter_failed(link);
                 return r;