bridge: make learning and unicast-flood configurable per bridge port
[project/netifd.git] / device.c
index 1265c86..0e07615 100644 (file)
--- a/device.c
+++ b/device.c
@@ -47,6 +47,12 @@ static const struct blobmsg_policy dev_attrs[__DEV_ATTR_MAX] = {
        [DEV_ATTR_NEIGHREACHABLETIME] = { .name = "neighreachabletime", .type = BLOBMSG_TYPE_INT32 },
        [DEV_ATTR_RPS] = { .name = "rps", .type = BLOBMSG_TYPE_BOOL },
        [DEV_ATTR_XPS] = { .name = "xps", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_DADTRANSMITS] = { .name = "dadtransmits", .type = BLOBMSG_TYPE_INT32 },
+       [DEV_ATTR_MULTICAST_TO_UNICAST] = { .name = "multicast_to_unicast", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_MULTICAST_ROUTER] = { .name = "multicast_router", .type = BLOBMSG_TYPE_INT32 },
+       [DEV_ATTR_MULTICAST] = { .name ="multicast", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_LEARNING] = { .name ="learning", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_UNICAST_FLOOD] = { .name ="unicast_flood", .type = BLOBMSG_TYPE_BOOL },
 };
 
 const struct uci_blob_param_list device_attr_list = {
@@ -71,18 +77,14 @@ void device_unlock(void)
 static int set_device_state(struct device *dev, bool state)
 {
        if (state) {
-               /* Set ifindex for all devices being enabled so a valid  */
+               /* Get ifindex for all devices being enabled so a valid  */
                /* ifindex is in place avoiding possible race conditions */
                device_set_ifindex(dev, system_if_resolve(dev));
                if (!dev->ifindex)
                        return -1;
-       }
-
-       if (dev->external)
-               return 0;
 
-       if (state)
                system_if_up(dev);
+       }
        else
                system_if_down(dev);
 
@@ -170,8 +172,16 @@ device_merge_settings(struct device *dev, struct device_settings *n)
        n->neigh4reachabletime = s->flags & DEV_OPT_NEIGHREACHABLETIME ?
                s->neigh4reachabletime : os->neigh4reachabletime;
        n->neigh6reachabletime = s->flags & DEV_OPT_NEIGHREACHABLETIME ?
-                       s->neigh6reachabletime : os->neigh6reachabletime;
-       n->flags = s->flags | os->flags;
+               s->neigh6reachabletime : os->neigh6reachabletime;
+       n->dadtransmits = s->flags & DEV_OPT_DADTRANSMITS ?
+               s->dadtransmits : os->dadtransmits;
+       n->multicast = s->flags & DEV_OPT_MULTICAST ?
+               s->multicast : os->multicast;
+       n->multicast_to_unicast = s->multicast_to_unicast;
+       n->multicast_router = s->multicast_router;
+       n->learning = s->learning;
+       n->unicast_flood = s->unicast_flood;
+       n->flags = s->flags | os->flags | os->valid_flags;
 }
 
 void
@@ -266,6 +276,39 @@ device_init_settings(struct device *dev, struct blob_attr **tb)
        else
                s->xps = default_ps;
 
+       if ((cur = tb[DEV_ATTR_DADTRANSMITS])) {
+               s->dadtransmits = blobmsg_get_u32(cur);
+               s->flags |= DEV_OPT_DADTRANSMITS;
+       }
+
+       if ((cur = tb[DEV_ATTR_MULTICAST_TO_UNICAST])) {
+               s->multicast_to_unicast = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_MULTICAST_TO_UNICAST;
+       }
+
+       if ((cur = tb[DEV_ATTR_MULTICAST_ROUTER])) {
+               s->multicast_router = blobmsg_get_u32(cur);
+               if (s->multicast_router <= 2)
+                       s->flags |= DEV_OPT_MULTICAST_ROUTER;
+               else
+                       DPRINTF("Invalid value: %d - (Use 0: never, 1: learn, 2: always)\n", blobmsg_get_u32(cur));
+       }
+
+       if ((cur = tb[DEV_ATTR_MULTICAST])) {
+               s->multicast = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_MULTICAST;
+       }
+
+       if ((cur = tb[DEV_ATTR_LEARNING])) {
+               s->learning = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_LEARNING;
+       }
+
+       if ((cur = tb[DEV_ATTR_UNICAST_FLOOD])) {
+               s->unicast_flood = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_UNICAST_FLOOD;
+       }
+
        device_set_disabled(dev, disabled);
 }
 
@@ -299,18 +342,31 @@ void device_broadcast_event(struct device *dev, enum device_event ev)
 int device_claim(struct device_user *dep)
 {
        struct device *dev = dep->dev;
-       int ret;
+       int ret = 0;
 
        if (dep->claimed)
                return 0;
 
+       if (!dev)
+               return -1;
+
        dep->claimed = true;
        D(DEVICE, "Claim %s %s, new active count: %d\n", dev->type->name, dev->ifname, dev->active + 1);
        if (++dev->active != 1)
                return 0;
 
        device_broadcast_event(dev, DEV_EVENT_SETUP);
-       ret = dev->set_state(dev, true);
+       if (dev->external) {
+               /* Get ifindex for external claimed devices so a valid   */
+               /* ifindex is in place avoiding possible race conditions */
+               device_set_ifindex(dev, system_if_resolve(dev));
+               if (!dev->ifindex)
+                       ret = -1;
+
+               system_if_get_settings(dev, &dev->orig_settings);
+       } else
+               ret = dev->set_state(dev, true);
+
        if (ret == 0)
                device_broadcast_event(dev, DEV_EVENT_UP);
        else {
@@ -398,10 +454,15 @@ device_create_default(const char *name, bool external)
 
        D(DEVICE, "Create simple device '%s'\n", name);
        dev = calloc(1, sizeof(*dev));
+       if (!dev)
+               return NULL;
+
        dev->external = external;
        dev->set_state = simple_device_set_state;
        device_init(dev, &simple_device_type, name);
        dev->default_config = true;
+       if (external)
+               system_if_apply_settings(dev, &dev->settings, dev->settings.flags);
        return dev;
 }
 
@@ -419,6 +480,7 @@ device_get(const char *name, int create)
        dev = avl_find_element(&devices, name, dev, avl);
        if (dev) {
                if (create > 1 && !dev->external) {
+                       system_if_apply_settings(dev, &dev->settings, dev->settings.flags);
                        dev->external = true;
                        device_set_present(dev, true);
                }
@@ -524,19 +586,11 @@ static int device_refcount(struct device *dev)
        return count;
 }
 
-void device_add_user(struct device_user *dep, struct device *dev)
+static void
+__device_add_user(struct device_user *dep, struct device *dev)
 {
        struct safe_list *head;
 
-       if (dep->dev == dev)
-               return;
-
-       if (dep->dev)
-               device_remove_user(dep);
-
-       if (!dev)
-               return;
-
        dep->dev = dev;
 
        if (dep->alias)
@@ -557,6 +611,20 @@ void device_add_user(struct device_user *dep, struct device *dev)
        }
 }
 
+void device_add_user(struct device_user *dep, struct device *dev)
+{
+       if (dep->dev == dev)
+               return;
+
+       if (dep->dev)
+               device_remove_user(dep);
+
+       if (!dev)
+               return;
+
+       __device_add_user(dep, dev);
+}
+
 void
 device_free(struct device *dev)
 {
@@ -670,12 +738,16 @@ device_apply_config(struct device *dev, const struct device_type *type,
                        free(dev->config);
                        dev->config = config;
                        if (change == DEV_CONFIG_RESTART && dev->present) {
+                               int ret = 0;
+
                                device_set_present(dev, false);
                                if (dev->active && !dev->external) {
-                                       dev->set_state(dev, false);
-                                       dev->set_state(dev, true);
+                                       ret = dev->set_state(dev, false);
+                                       if (!ret)
+                                               ret = dev->set_state(dev, true);
                                }
-                               device_set_present(dev, true);
+                               if (!ret)
+                                       device_set_present(dev, true);
                        }
                        break;
                case DEV_CONFIG_NO_CHANGE:
@@ -692,21 +764,19 @@ static void
 device_replace(struct device *dev, struct device *odev)
 {
        struct device_user *dep, *tmp;
-       bool present = odev->present;
 
-       if (present)
+       __devlock++;
+       if (odev->present)
                device_set_present(odev, false);
 
        list_for_each_entry_safe(dep, tmp, &odev->users.list, list.list) {
                device_release(dep);
                safe_list_del(&dep->list);
-               safe_list_add(&dep->list, &dev->users);
-               dep->dev = dev;
+               __device_add_user(dep, dev);
        }
-       device_free(odev);
+       __devlock--;
 
-       if (present)
-               device_set_present(dev, true);
+       device_free(odev);
 }
 
 void
@@ -731,6 +801,9 @@ device_reset_old(void)
                        continue;
 
                ndev = device_create_default(dev->ifname, dev->external);
+               if (!ndev)
+                       continue;
+
                device_replace(ndev, dev);
        }
 }
@@ -872,6 +945,18 @@ device_dump_status(struct blob_buf *b, struct device *dev)
                        blobmsg_add_u32(b, "neigh4reachabletime", st.neigh4reachabletime);
                        blobmsg_add_u32(b, "neigh6reachabletime", st.neigh6reachabletime);
                }
+               if (st.flags & DEV_OPT_DADTRANSMITS)
+                       blobmsg_add_u32(b, "dadtransmits", st.dadtransmits);
+               if (st.flags & DEV_OPT_MULTICAST_TO_UNICAST)
+                       blobmsg_add_u8(b, "multicast_to_unicast", st.multicast_to_unicast);
+               if (st.flags & DEV_OPT_MULTICAST_ROUTER)
+                       blobmsg_add_u32(b, "multicast_router", st.multicast_router);
+               if (st.flags & DEV_OPT_MULTICAST)
+                       blobmsg_add_u8(b, "multicast", st.multicast);
+               if (st.flags & DEV_OPT_LEARNING)
+                       blobmsg_add_u8(b, "learning", st.learning);
+               if (st.flags & DEV_OPT_UNICAST_FLOOD)
+                       blobmsg_add_u8(b, "unicast_flood", st.unicast_flood);
        }
 
        s = blobmsg_open_table(b, "statistics");