interface-ip: set prefix indicator flag when IPv6 prefix lifetime changes

[project/netifd.git] / interface.c

diff --git a/interface.c b/interface.c
index 7b18cef..f150f7d 100644 (file)
--- a/interface.c
+++ b/interface.c
@@ -35,6 +35,7 @@ enum {
        IFACE_ATTR_PEERDNS,
        IFACE_ATTR_DNS,
        IFACE_ATTR_DNS_SEARCH,
+       IFACE_ATTR_DNS_METRIC,
        IFACE_ATTR_METRIC,
        IFACE_ATTR_INTERFACE,
        IFACE_ATTR_IP6ASSIGN,
@@ -45,6 +46,7 @@ enum {
        IFACE_ATTR_DELEGATE,
        IFACE_ATTR_IP6IFACEID,
        IFACE_ATTR_FORCE_LINK,
+       IFACE_ATTR_IP6WEIGHT,
        IFACE_ATTR_MAX
 };
 
@@ -57,6 +59,7 @@ static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
        [IFACE_ATTR_METRIC] = { .name = "metric", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
        [IFACE_ATTR_DNS_SEARCH] = { .name = "dns_search", .type = BLOBMSG_TYPE_ARRAY },
+       [IFACE_ATTR_DNS_METRIC] = { .name = "dns_metric", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
        [IFACE_ATTR_IP6ASSIGN] = { .name = "ip6assign", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_IP6HINT] = { .name = "ip6hint", .type = BLOBMSG_TYPE_STRING },
@@ -66,6 +69,7 @@ static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
        [IFACE_ATTR_DELEGATE] = { .name = "delegate", .type = BLOBMSG_TYPE_BOOL },
        [IFACE_ATTR_IP6IFACEID] = { .name = "ip6ifaceid", .type = BLOBMSG_TYPE_STRING },
        [IFACE_ATTR_FORCE_LINK] = { .name = "force_link", .type = BLOBMSG_TYPE_BOOL },
+       [IFACE_ATTR_IP6WEIGHT] = { .name = "ip6weight", .type = BLOBMSG_TYPE_INT32 },
 };
 
 const struct uci_blob_param_list interface_attr_list = {
@@ -92,11 +96,11 @@ interface_error_flush(struct interface *iface)
 static void
 interface_clear_errors(struct interface *iface)
 {
-        /* don't flush the errors in case the configured protocol handler matches the
+       /* don't flush the errors in case the configured protocol handler matches the
            running protocol handler and is having the last error capability */
        if (!(iface->proto &&
-              (iface->proto->handler->flags & PROTO_FLAG_LASTERROR) &&
-              (iface->proto->handler->name == iface->proto_handler->name)))
+             (iface->proto->handler->flags & PROTO_FLAG_LASTERROR) &&
+             (iface->proto->handler->name == iface->proto_handler->name)))
                interface_error_flush(iface);
 }
 
@@ -108,12 +112,12 @@ void interface_add_error(struct interface *iface, const char *subsystem,
        int *datalen = NULL;
        char *dest, *d_subsys, *d_code;
 
-        /* if the configured protocol handler has the last error support capability,
+       /* if the configured protocol handler has the last error support capability,
            errors should only be added if the running protocol handler matches the
            configured one */
        if (iface->proto &&
-            (iface->proto->handler->flags & PROTO_FLAG_LASTERROR) &&
-            (iface->proto->handler->name != iface->proto_handler->name))
+           (iface->proto->handler->flags & PROTO_FLAG_LASTERROR) &&
+           (iface->proto->handler->name != iface->proto_handler->name))
                return;
 
        if (n_data) {
@@ -260,6 +264,7 @@ mark_interface_down(struct interface *iface)
        if (state == IFS_DOWN)
                return;
 
+       iface->link_up_event = false;
        iface->state = IFS_DOWN;
        if (state == IFS_UP)
                interface_event(iface, IFEV_DOWN);
@@ -355,6 +360,11 @@ interface_set_link_state(struct interface *iface, bool new_state)
        netifd_log_message(L_NOTICE, "Interface '%s' has link connectivity %s\n", iface->name, new_state ? "" : "loss");
        iface->link_state = new_state;
        interface_check_state(iface);
+
+       if (new_state && iface->force_link && iface->state == IFS_UP && !iface->link_up_event) {
+               interface_event(iface, IFEV_LINK_UP);
+               iface->link_up_event = true;
+       }
 }
 
 static void
@@ -408,7 +418,8 @@ interface_l3_dev_cb(struct device_user *dep, enum device_event ev)
 
        switch (ev) {
        case DEV_EVENT_LINK_DOWN:
-               interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, false);
+               if (iface->proto_handler->flags & PROTO_FLAG_TEARDOWN_ON_L3_LINK_DOWN)
+                       interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, false);
                break;
        default:
                break;
@@ -488,6 +499,7 @@ interface_merge_assignment_data(struct interface *old, struct interface *new)
        bool changed = (old->assignment_hint != new->assignment_hint ||
                        old->assignment_length != new->assignment_length ||
                        old->assignment_iface_id_selection != new->assignment_iface_id_selection ||
+                       old->assignment_weight != new->assignment_weight ||
                        (old->assignment_iface_id_selection == IFID_FIXED &&
                         memcmp(&old->assignment_fixed_iface_id, &new->assignment_fixed_iface_id,
                                sizeof(old->assignment_fixed_iface_id))) ||
@@ -525,6 +537,7 @@ interface_merge_assignment_data(struct interface *old, struct interface *new)
                old->assignment_length = new->assignment_length;
                old->assignment_iface_id_selection = new->assignment_iface_id_selection;
                old->assignment_fixed_iface_id = new->assignment_fixed_iface_id;
+               old->assignment_weight = new->assignment_weight;
                interface_refresh_assignments(true);
        }
 }
@@ -550,8 +563,7 @@ interface_alias_cb(struct interface_user *dep, struct interface *iface, enum int
        case IFEV_FREE:
                interface_remove_user(dep);
                break;
-       case IFEV_RELOAD:
-       case IFEV_UPDATE:
+       default:
                break;
        }
 }
@@ -580,6 +592,8 @@ interface_claim_device(struct interface *iface)
        if (iface->parent_iface.iface)
                interface_remove_user(&iface->parent_iface);
 
+       device_lock();
+
        if (iface->parent_ifname) {
                parent = vlist_find(&interfaces, iface->parent_ifname, parent, node);
                iface->parent_iface.cb = interface_alias_cb;
@@ -595,6 +609,8 @@ interface_claim_device(struct interface *iface)
        if (dev)
                interface_set_main_dev(iface, dev);
 
+       device_unlock();
+
        if (iface->proto_handler->flags & PROTO_FLAG_INIT_AVAILABLE)
                interface_set_available(iface, true);
 }
@@ -681,7 +697,8 @@ interface_proto_event_cb(struct interface_proto_state *state, enum interface_pro
        switch (ev) {
        case IFPEV_UP:
                if (iface->state != IFS_SETUP) {
-                       interface_event(iface, IFEV_UPDATE);
+                       if (iface->state == IFS_UP && iface->updated)
+                               interface_event(iface, IFEV_UPDATE);
                        return;
                }
 
@@ -785,6 +802,9 @@ interface_alloc(const char *name, struct blob_attr *config)
        if ((cur = tb[IFACE_ATTR_DNS_SEARCH]))
                interface_add_dns_search_list(&iface->config_ip, cur);
 
+       if ((cur = tb[IFACE_ATTR_DNS_METRIC]))
+               iface->dns_metric = blobmsg_get_u32(cur);
+
        if ((cur = tb[IFACE_ATTR_METRIC]))
                iface->metric = blobmsg_get_u32(cur);
 
@@ -826,6 +846,8 @@ interface_alloc(const char *name, struct blob_attr *config)
        if ((cur = tb[IFACE_ATTR_IP6CLASS]))
                interface_add_assignment_classes(iface, cur);
 
+       if ((cur = tb[IFACE_ATTR_IP6WEIGHT]))
+               iface->assignment_weight = blobmsg_get_u32(cur);
 
        if ((cur = tb[IFACE_ATTR_IP4TABLE])) {
                if (!system_resolve_rt_table(blobmsg_data(cur), &iface->ip4table))
@@ -1076,10 +1098,12 @@ set_config_state(struct interface *iface, enum interface_config_state s)
 }
 
 void
-interface_update_start(struct interface *iface)
+interface_update_start(struct interface *iface, const bool keep_old)
 {
        iface->updated = 0;
-       interface_ip_update_start(&iface->proto_ip);
+
+       if (!keep_old)
+               interface_ip_update_start(&iface->proto_ip);
 }
 
 void
@@ -1175,6 +1199,7 @@ interface_change_config(struct interface *if_old, struct interface *if_new)
        if_old->parent_ifname = if_new->parent_ifname;
        if_old->proto_handler = if_new->proto_handler;
        if_old->force_link = if_new->force_link;
+       if_old->dns_metric = if_new->dns_metric;
 
        if_old->proto_ip.no_dns = if_new->proto_ip.no_dns;
        interface_replace_dns(&if_old->config_ip, &if_new->config_ip);