networkd: refactor link_add() ...

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

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index d83c4cef8bf5f4db5263bc0fa1fedb7ebb368ab4..66bcb6bacf051f9ba1afc3381f3c2b3bd25b2fa5 100644 (file)
--- 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_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;
         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;
@@ -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_new_link(RTM_SETLINK, link->ifindex, &req);
+        r = sd_rtnl_message_new_link(link->manager->rtnl, RTM_SETLINK,
+                                     link->ifindex, &req);
         if (r < 0) {
                 log_error_link(link, "Could not allocate RTM_SETLINK message");
                 return r;
@@ -626,10 +638,12 @@ 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 +806,8 @@ static int link_up(Link *link) {
 
         log_debug_link(link, "bringing link up");
 
-        r = sd_rtnl_message_new_link(RTM_SETLINK, link->ifindex, &req);
+        r = sd_rtnl_message_new_link(link->manager->rtnl, RTM_SETLINK,
+                                     link->ifindex, &req);
         if (r < 0) {
                 log_error_link(link, "Could not allocate RTM_SETLINK message");
                 return r;
@@ -922,7 +937,8 @@ 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 +965,7 @@ 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 +975,15 @@ static int link_get(Link *link) {
 
         log_debug_link(link, "requesting link status");
 
-        r = sd_rtnl_message_new_link(RTM_GETLINK, link->ifindex, &req);
+        r = sd_rtnl_message_new_link(link->manager->rtnl, RTM_GETLINK,
+                                     link->ifindex, &req);
         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 +1000,7 @@ 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;