networkd: fdb - refactor a bit

Pass around Link objcets rather than FdbEntry objects. The link objects have an up-to-date
ifname we can use for logging. match_name sholud _never_ be used for anything except
matching. Firstly, it may be unset (usually is), and secondly it may not be up-to-date.

3 files changed, 16 insertions, 14 deletions

diff --git a/src/network/networkd-fdb.c b/src/network/networkd-fdb.c
index 9bb45e33d1..78488c9d25 100644
--- a/src/network/networkd-fdb.c
+++ b/src/network/networkd-fdb.c
@@ -86,31 +86,33 @@ int fdb_entry_new_static(Network *const network,
 }
 
 static int set_fdb_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
-        _cleanup_fdbentry_free_ FdbEntry *fdb_entry = userdata;
+        Link *link = userdata;
         int r;
 
-        assert(fdb_entry);
+        assert(link);
 
         r = sd_rtnl_message_get_errno(m);
-        if ((r < 0) && (r != (-EEXIST)))
-                log_error("Could not add FDB entry for interface: %s error: %s",
-                          fdb_entry->network->match_name, strerror(-r));
+        if (r < 0 && r != -EEXIST)
+                log_link_error(link, "Could not add FDB entry: %s", strerror(-r));
 
         return 1;
 }
 
 /* send a request to the kernel to add a FDB entry in its static MAC table. */
-int fdb_entry_configure(sd_rtnl *const rtnl,
-                        FdbEntry *const fdb_entry,
-                        const int ifindex) {
+int fdb_entry_configure(Link *link,
+                        FdbEntry *const fdb_entry) {
         _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
+        sd_rtnl *rtnl;
         int r;
 
+        assert(link);
+        assert(link->manager);
         assert(fdb_entry);
-        assert(rtnl);
+
+        rtnl = link->manager->rtnl;
 
         /* create new RTM message */
-        r = sd_rtnl_message_new_neigh(rtnl, &req, RTM_NEWNEIGH, ifindex, PF_BRIDGE);
+        r = sd_rtnl_message_new_neigh(rtnl, &req, RTM_NEWNEIGH, link->ifindex, PF_BRIDGE);
         if (r < 0)
                 return rtnl_log_create_error(r);
 
@@ -136,9 +138,9 @@ int fdb_entry_configure(sd_rtnl *const rtnl,
         }
 
         /* send message to the kernel to update its internal static MAC table. */
-        r = sd_rtnl_call_async(rtnl, req, set_fdb_handler, fdb_entry, 0, NULL);
+        r = sd_rtnl_call_async(rtnl, req, set_fdb_handler, link, 0, NULL);
         if (r < 0) {
-                log_error("Could not send rtnetlink message: %s", strerror(-r));
+                log_link_error(link, "Could not send rtnetlink message: %s", strerror(-r));
                 return r;
         }
 
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 0b1cac1055..3f1539454f 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -733,7 +733,7 @@ static int link_set_bridge_fdb(const Link *const link) {
         int r = 0;
 
         LIST_FOREACH(static_fdb_entries, fdb_entry, link->network->static_fdb_entries) {
-                r = fdb_entry_configure(link->manager->rtnl, fdb_entry, link->ifindex);
+                r = fdb_entry_configure(link, fdb_entry);
                 if(r < 0) {
                         log_link_error(link, "Failed to add MAC entry to static MAC table: %s", strerror(-r));
                         break;
diff --git a/src/network/networkd.h b/src/network/networkd.h
index 22cc51d933..691d603020 100644
--- a/src/network/networkd.h
+++ b/src/network/networkd.h
@@ -383,7 +383,7 @@ int config_parse_label(const char *unit, const char *filename, unsigned line,
                        int ltype, const char *rvalue, void *data, void *userdata);
 
 /* Forwarding database table. */
-int fdb_entry_configure(sd_rtnl *const rtnl, FdbEntry *const fdb_entry, const int ifindex);
+int fdb_entry_configure(Link *link, FdbEntry *const fdb_entry);
 void fdb_entry_free(FdbEntry *fdb_entry);
 int fdb_entry_new_static(Network *const network, const unsigned section, FdbEntry **ret);