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-rw-r--r--src/core/devices/nm-device-bridge.c79
-rw-r--r--src/core/devices/nm-device.c52
2 files changed, 104 insertions, 27 deletions
diff --git a/src/core/devices/nm-device-bridge.c b/src/core/devices/nm-device-bridge.c
index 193b655c..ab3a6be9 100644
--- a/src/core/devices/nm-device-bridge.c
+++ b/src/core/devices/nm-device-bridge.c
@@ -619,7 +619,27 @@ master_update_slave_connection(NMDevice     *device,
 }
 
 static gboolean
-bridge_set_vlan_options(NMDevice *device, NMSettingBridge *s_bridge)
+is_bridge_pvid_changed(NMDevice *device, NMSettingBridge *s_bridge)
+{
+    int                        ifindex = nm_device_get_ifindex(device);
+    const NMPlatformLnkBridge *nmp_link_br;
+    NMPlatform                *platform = nm_device_get_platform(device);
+    bool    desired_vlan_filtering      = nm_setting_bridge_get_vlan_filtering(s_bridge);
+    guint16 desired_pvid                = nm_setting_bridge_get_vlan_default_pvid(s_bridge);
+
+    nm_platform_link_refresh(platform, ifindex);
+    nmp_link_br = nm_platform_link_get_lnk_bridge(platform, ifindex, NULL);
+
+    if (nmp_link_br) {
+        return desired_vlan_filtering != nmp_link_br->vlan_filtering
+               || desired_pvid != nmp_link_br->default_pvid;
+    } else {
+        return TRUE;
+    }
+}
+
+static gboolean
+bridge_set_vlan_options(NMDevice *device, NMSettingBridge *s_bridge, gboolean is_reapply)
 {
     NMDeviceBridge                      *self = NM_DEVICE_BRIDGE(device);
     gconstpointer                        hwaddr;
@@ -660,31 +680,37 @@ bridge_set_vlan_options(NMDevice *device, NMSettingBridge *s_bridge)
 
     self->vlan_configured = TRUE;
 
-    /* Filtering must be disabled to change the default PVID.
-     * Clear the default PVID so that we later can force the re-creation of
-     * default PVID VLANs by writing the option again. */
+    if (!is_reapply || is_bridge_pvid_changed(device, s_bridge)) {
+        /* Filtering must be disabled to change the default PVID.
+         * Clear the default PVID so that we later can force the re-creation of
+         * default PVID VLANs by writing the option again. */
 
-    nm_platform_link_set_bridge_info(
-        plat,
-        ifindex,
-        &((NMPlatformLinkSetBridgeInfoData){.vlan_filtering_has    = TRUE,
-                                            .vlan_filtering_val    = FALSE,
-                                            .vlan_default_pvid_has = TRUE,
-                                            .vlan_default_pvid_val = 0}));
-
-    /* Clear all existing VLANs */
-    if (!nm_platform_link_set_bridge_vlans(plat, ifindex, FALSE, NULL))
-        return FALSE;
+        if (is_reapply) {
+            _LOGD(LOGD_BRIDGE, "default_pvid is changed, resetting bridge VLAN filtering");
+        }
 
-    /* Now set the default PVID. After this point the kernel creates
-     * a PVID VLAN on each port, including the bridge itself. */
-    pvid = nm_setting_bridge_get_vlan_default_pvid(s_bridge);
-    if (pvid) {
         nm_platform_link_set_bridge_info(
             plat,
             ifindex,
-            &((NMPlatformLinkSetBridgeInfoData){.vlan_default_pvid_has = TRUE,
-                                                .vlan_default_pvid_val = pvid}));
+            &((NMPlatformLinkSetBridgeInfoData){.vlan_filtering_has    = TRUE,
+                                                .vlan_filtering_val    = FALSE,
+                                                .vlan_default_pvid_has = TRUE,
+                                                .vlan_default_pvid_val = 0}));
+
+        /* Clear all existing VLANs */
+        if (!nm_platform_link_set_bridge_vlans(plat, ifindex, FALSE, NULL))
+            return FALSE;
+
+        /* Now set the default PVID. After this point the kernel creates
+         * a PVID VLAN on each port, including the bridge itself. */
+        pvid = nm_setting_bridge_get_vlan_default_pvid(s_bridge);
+        if (pvid) {
+            nm_platform_link_set_bridge_info(
+                plat,
+                ifindex,
+                &((NMPlatformLinkSetBridgeInfoData){.vlan_default_pvid_has = TRUE,
+                                                    .vlan_default_pvid_val = pvid}));
+        }
     }
 
     /* Create VLANs only after setting the default PVID, so that
@@ -743,7 +769,7 @@ _platform_lnk_bridge_init_from_setting(NMSettingBridge *s_bridge, NMPlatformLnkB
 }
 
 static gboolean
-link_config(NMDevice *device, NMConnection *connection)
+link_config(NMDevice *device, NMConnection *connection, gboolean is_reapply)
 {
     int                 ifindex = nm_device_get_ifindex(device);
     NMSettingBridge    *s_bridge;
@@ -757,7 +783,7 @@ link_config(NMDevice *device, NMConnection *connection)
     if (nm_platform_link_bridge_change(nm_device_get_platform(device), ifindex, &props) < 0)
         return FALSE;
 
-    return bridge_set_vlan_options(device, s_bridge);
+    return bridge_set_vlan_options(device, s_bridge, is_reapply);
 }
 
 static NMActStageReturn
@@ -768,7 +794,7 @@ act_stage1_prepare(NMDevice *device, NMDeviceStateReason *out_failure_reason)
     connection = nm_device_get_applied_connection(device);
     g_return_val_if_fail(connection, NM_ACT_STAGE_RETURN_FAILURE);
 
-    if (!link_config(device, connection)) {
+    if (!link_config(device, connection, FALSE)) {
         NM_SET_OUT(out_failure_reason, NM_DEVICE_STATE_REASON_CONFIG_FAILED);
         return NM_ACT_STAGE_RETURN_FAILURE;
     }
@@ -910,7 +936,7 @@ attach_port(NMDevice                  *device,
         s_port = nm_connection_get_setting_bridge_port(connection);
 
         if (!nm_device_sys_iface_state_is_external(device))
-            bridge_set_vlan_options(device, s_bridge);
+            bridge_set_vlan_options(device, s_bridge, FALSE);
 
         if (nm_setting_bridge_get_vlan_filtering(s_bridge)) {
             gs_free const NMPlatformBridgeVlan **plat_vlans = NULL;
@@ -1125,8 +1151,7 @@ reapply_connection(NMDevice *device, NMConnection *con_old, NMConnection *con_ne
     /* Make sure bridge_set_vlan_options() called by link_config()
      * sets vlan_filtering and default_pvid anew. */
     self->vlan_configured = FALSE;
-
-    link_config(device, con_new);
+    link_config(device, con_new, TRUE);
 }
 
 /*****************************************************************************/
diff --git a/src/core/devices/nm-device.c b/src/core/devices/nm-device.c
index 16f8e1f2..a9e8c085 100644
--- a/src/core/devices/nm-device.c
+++ b/src/core/devices/nm-device.c
@@ -2185,6 +2185,52 @@ out_good:
     return result;
 }
 
+static guint8
+_prop_get_ipv4_dhcp_dscp(NMDevice *self, gboolean *out_dscp_explicit)
+{
+    gs_free_error GError *error = NULL;
+    NMConnection         *connection;
+    NMSettingIPConfig    *s_ip;
+    const char           *str;
+
+    connection = nm_device_get_applied_connection(self);
+    s_ip       = nm_connection_get_setting_ip_config(connection, AF_INET);
+    g_return_val_if_fail(s_ip, 0);
+
+    NM_SET_OUT(out_dscp_explicit, TRUE);
+
+    str = nm_setting_ip_config_get_dhcp_dscp(s_ip);
+    if (str) {
+        nm_assert(nm_utils_validate_dhcp_dscp(str, NULL));
+    } else {
+        str = nm_config_data_get_connection_default(NM_CONFIG_GET_DATA,
+                                                    NM_CON_DEFAULT("ipv4.dhcp-dscp"),
+                                                    self);
+        if (!str || !str[0]) {
+            str = "CS0";
+            NM_SET_OUT(out_dscp_explicit, FALSE);
+        } else if (!nm_utils_validate_dhcp_dscp(str, &error)) {
+            _LOGW(LOGD_DEVICE,
+                  "invalid global default value '%s' for ipv4.%s: %s",
+                  str,
+                  NM_SETTING_IP_CONFIG_DHCP_DSCP,
+                  error->message);
+            str = "CS0";
+            NM_SET_OUT(out_dscp_explicit, FALSE);
+        }
+    }
+
+    if (nm_streq(str, "CS0")) {
+        return 0;
+    } else if (nm_streq(str, "CS6")) {
+        return 0x30;
+    } else if (nm_streq(str, "CS4")) {
+        return 0x20;
+    };
+
+    return nm_assert_unreachable_val(0);
+}
+
 static GBytes *
 _prop_get_ipv4_dhcp_vendor_class_identifier(NMDevice *self, NMSettingIP4Config *s_ip4)
 {
@@ -10970,8 +11016,11 @@ _dev_ipdhcpx_start(NMDevice *self, int addr_family)
         const char            *hostname;
         gboolean               hostname_is_fqdn;
         gboolean               send_client_id;
+        guint8                 dscp;
+        gboolean               dscp_explicit = FALSE;
 
         client_id = _prop_get_ipv4_dhcp_client_id(self, connection, hwaddr, &send_client_id);
+        dscp      = _prop_get_ipv4_dhcp_dscp(self, &dscp_explicit);
 
         vendor_class_identifier =
             _prop_get_ipv4_dhcp_vendor_class_identifier(self, NM_SETTING_IP4_CONFIG(s_ip));
@@ -11010,6 +11059,8 @@ _dev_ipdhcpx_start(NMDevice *self, int addr_family)
                     .request_broadcast = request_broadcast,
                     .acd_timeout_msec  = _prop_get_ipv4_dad_timeout(self),
                     .send_client_id    = send_client_id,
+                    .dscp              = dscp,
+                    .dscp_explicit     = dscp_explicit,
                 },
             .previous_lease = priv->l3cds[L3_CONFIG_DATA_TYPE_DHCP_X(IS_IPv4)].d,
         };
@@ -13369,6 +13420,7 @@ can_reapply_change(NMDevice   *self,
                                                  NM_SETTING_CONNECTION_STABLE_ID,
                                                  NM_SETTING_CONNECTION_AUTOCONNECT,
                                                  NM_SETTING_CONNECTION_AUTOCONNECT_SLAVES,
+                                                 NM_SETTING_CONNECTION_AUTOCONNECT_PORTS,
                                                  NM_SETTING_CONNECTION_AUTOCONNECT_PRIORITY,
                                                  NM_SETTING_CONNECTION_ZONE,
                                                  NM_SETTING_CONNECTION_METERED,