networkd: rename RootBlock to AllowPortToBeRoot

Justification is similar to BPDUGuard rename. "Positive" values
are easier. This is a rather uncommon option, so using a slightly
longer name should not be a problem, and may in fact may make it
easier to guess what the option does without reading the
documentation.

5 files changed, 6 insertions, 5 deletions

diff --git a/man/systemd.network.xml b/man/systemd.network.xml
index 196e57dd57..fbb0bef5c2 100644
--- a/man/systemd.network.xml
+++ b/man/systemd.network.xml
@@ -703,11 +703,11 @@
           </listitem>
         </varlistentry>
         <varlistentry>
-          <term><varname>RootBlock=</varname></term>
+          <term><varname>AllowPortToBeRoot=</varname></term>
           <listitem>
             <para>A boolean. Configures whether a given port is allowed to
             become a root port. Only used when STP is enabled on the bridge.
-            Defaults to off.</para>
+            Defaults to on.</para>
           </listitem>
         </varlistentry>
         <varlistentry>
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 54077db486..f20f68b482 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -870,7 +870,7 @@ static int link_set_bridge(Link *link) {
         if (r < 0)
                 return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_FAST_LEAVE attribute: %m");
 
-        r = sd_netlink_message_append_u8(req, IFLA_BRPORT_PROTECT, link->network->root_block);
+        r = sd_netlink_message_append_u8(req, IFLA_BRPORT_PROTECT, !link->network->allow_port_to_be_root);
         if (r < 0)
                 return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_PROTECT attribute: %m");
 
diff --git a/src/network/networkd-network-gperf.gperf b/src/network/networkd-network-gperf.gperf
index 1416ba1d32..83224d7109 100644
--- a/src/network/networkd-network-gperf.gperf
+++ b/src/network/networkd-network-gperf.gperf
@@ -76,7 +76,7 @@ Bridge.Cost,                   config_parse_unsigned,                          0
 Bridge.UseBPDU,                config_parse_bool,                              0,                             offsetof(Network, use_bpdu)
 Bridge.HairPin,                config_parse_bool,                              0,                             offsetof(Network, hairpin)
 Bridge.FastLeave,              config_parse_bool,                              0,                             offsetof(Network, fast_leave)
-Bridge.RootBlock,              config_parse_bool,                              0,                             offsetof(Network, root_block)
+Bridge.AllowPortToBeRoot,      config_parse_bool,                              0,                             offsetof(Network, allow_port_to_be_root)
 Bridge.UnicastFlood,           config_parse_bool,                              0,                             offsetof(Network, unicast_flood)
 BridgeFDB.MACAddress,          config_parse_fdb_hwaddr,                        0,                             0
 BridgeFDB.VLANId,              config_parse_fdb_vlan_id,                       0,                             0
diff --git a/src/network/networkd-network.c b/src/network/networkd-network.c
index e757219ec5..d8f42621af 100644
--- a/src/network/networkd-network.c
+++ b/src/network/networkd-network.c
@@ -108,6 +108,7 @@ static int network_load_one(Manager *manager, const char *filename) {
         network->dhcp_client_identifier = DHCP_CLIENT_ID_DUID;
 
         network->use_bpdu = true;
+        network->allow_port_to_be_root = true;
         network->unicast_flood = true;
 
         network->llmnr = LLMNR_SUPPORT_YES;
diff --git a/src/network/networkd.h b/src/network/networkd.h
index 7aade401d8..a285a4b08f 100644
--- a/src/network/networkd.h
+++ b/src/network/networkd.h
@@ -153,7 +153,7 @@ struct Network {
         bool use_bpdu;
         bool hairpin;
         bool fast_leave;
-        bool root_block;
+        bool allow_port_to_be_root;
         bool unicast_flood;
         unsigned cost;