interface-ip: mask out host bits in IPv4 route targets
[project/netifd.git] / device.c
index 88698875106aa68424f5191e9bd06c6b78d54ad9..9a9e24984018ce18885cbdeed44857f5ebbd68ce 100644 (file)
--- a/device.c
+++ b/device.c
 #include "netifd.h"
 #include "system.h"
 #include "config.h"
+#include "wireless.h"
+#include "ubus.h"
 
 static struct list_head devtypes = LIST_HEAD_INIT(devtypes);
 static struct avl_tree devices;
+static struct blob_buf b;
 
 static const struct blobmsg_policy dev_attrs[__DEV_ATTR_MAX] = {
        [DEV_ATTR_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
@@ -54,6 +57,21 @@ static const struct blobmsg_policy dev_attrs[__DEV_ATTR_MAX] = {
        [DEV_ATTR_SENDREDIRECTS] = { .name = "sendredirects", .type = BLOBMSG_TYPE_BOOL },
        [DEV_ATTR_NEIGHLOCKTIME] = { .name = "neighlocktime", .type = BLOBMSG_TYPE_INT32 },
        [DEV_ATTR_ISOLATE] = { .name = "isolate", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_DROP_V4_UNICAST_IN_L2_MULTICAST] = { .name = "drop_v4_unicast_in_l2_multicast", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_DROP_V6_UNICAST_IN_L2_MULTICAST] = { .name = "drop_v6_unicast_in_l2_multicast", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_DROP_GRATUITOUS_ARP] = { .name = "drop_gratuitous_arp", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_DROP_UNSOLICITED_NA] = { .name = "drop_unsolicited_na", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_ARP_ACCEPT] = { .name = "arp_accept", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_AUTH] = { .name = "auth", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_AUTH_VLAN] = { .name = "auth_vlan", BLOBMSG_TYPE_ARRAY },
+       [DEV_ATTR_SPEED] = { .name = "speed", .type = BLOBMSG_TYPE_INT32 },
+       [DEV_ATTR_DUPLEX] = { .name = "duplex", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_VLAN] = { .name = "vlan", .type = BLOBMSG_TYPE_ARRAY },
+       [DEV_ATTR_PAUSE] = { .name = "pause", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_ASYM_PAUSE] = { .name = "asym_pause", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_RXPAUSE] = { .name = "rxpause", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_TXPAUSE] = { .name = "txpause", .type = BLOBMSG_TYPE_BOOL },
+       [DEV_ATTR_AUTONEG] = { .name = "autoneg", .type = BLOBMSG_TYPE_BOOL },
 };
 
 const struct uci_blob_param_list device_attr_list = {
@@ -90,18 +108,6 @@ device_type_get(const char *tname)
        return NULL;
 }
 
-void device_lock(void)
-{
-       __devlock++;
-}
-
-void device_unlock(void)
-{
-       __devlock--;
-       if (!__devlock)
-               device_free_unused(NULL);
-}
-
 static int device_vlan_len(struct kvlist *kv, const void *data)
 {
        return sizeof(unsigned int);
@@ -123,10 +129,25 @@ void device_vlan_update(bool done)
                        vlist_update(&dev->vlans);
                } else {
                        vlist_flush(&dev->vlans);
+
+                       if (dev->type->vlan_update)
+                               dev->type->vlan_update(dev);
                }
        }
 }
 
+void device_stp_init(void)
+{
+       struct device *dev;
+
+       avl_for_each_element(&devices, dev, avl) {
+               if (!dev->type->stp_init)
+                       continue;
+
+               dev->type->stp_init(dev);
+       }
+}
+
 static int set_device_state(struct device *dev, bool state)
 {
        if (state) {
@@ -255,9 +276,68 @@ device_merge_settings(struct device *dev, struct device_settings *n)
        n->unicast_flood = s->unicast_flood;
        n->sendredirects = s->flags & DEV_OPT_SENDREDIRECTS ?
                s->sendredirects : os->sendredirects;
+       n->drop_v4_unicast_in_l2_multicast = s->flags & DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST ?
+               s->drop_v4_unicast_in_l2_multicast : os->drop_v4_unicast_in_l2_multicast;
+       n->drop_v6_unicast_in_l2_multicast = s->flags & DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST ?
+               s->drop_v6_unicast_in_l2_multicast : os->drop_v6_unicast_in_l2_multicast;
+       n->drop_gratuitous_arp = s->flags & DEV_OPT_DROP_GRATUITOUS_ARP ?
+               s->drop_gratuitous_arp : os->drop_gratuitous_arp;
+       n->drop_unsolicited_na = s->flags & DEV_OPT_DROP_UNSOLICITED_NA ?
+               s->drop_unsolicited_na : os->drop_unsolicited_na;
+       n->arp_accept = s->flags & DEV_OPT_ARP_ACCEPT ?
+               s->arp_accept : os->arp_accept;
+       n->auth = s->flags & DEV_OPT_AUTH ? s->auth : os->auth;
+       n->speed = s->flags & DEV_OPT_SPEED ? s->speed : os->speed;
+       n->duplex = s->flags & DEV_OPT_DUPLEX ? s->duplex : os->duplex;
+       n->pause = s->flags & DEV_OPT_PAUSE ? s->pause : os->pause;
+       n->asym_pause = s->flags & DEV_OPT_ASYM_PAUSE ? s->asym_pause : os->asym_pause;
+       n->rxpause = s->flags & DEV_OPT_RXPAUSE ? s->rxpause : os->rxpause;
+       n->txpause = s->flags & DEV_OPT_TXPAUSE ? s->txpause : os->txpause;
+       n->autoneg = s->flags & DEV_OPT_AUTONEG ? s->autoneg : os->autoneg;
        n->flags = s->flags | os->flags | os->valid_flags;
 }
 
+static bool device_fill_vlan_range(struct device_vlan_range *r, const char *val)
+{
+       unsigned long cur_start, cur_end;
+       char *sep;
+
+       cur_start = strtoul(val, &sep, 0);
+       cur_end = cur_start;
+
+       if (*sep == '-')
+               cur_end = strtoul(sep + 1, &sep, 0);
+       if (*sep || cur_end < cur_start)
+               return false;
+
+       r->start = cur_start;
+       r->end = cur_end;
+
+       return true;
+}
+
+static void
+device_set_extra_vlans(struct device *dev, struct blob_attr *data)
+{
+       struct blob_attr *cur;
+       int n_vlans;
+       size_t rem;
+
+       dev->n_extra_vlan = 0;
+       if (!data)
+               return;
+
+       n_vlans = blobmsg_check_array(data, BLOBMSG_TYPE_STRING);
+       if (n_vlans < 1)
+               return;
+
+       dev->extra_vlan = realloc(dev->extra_vlan, n_vlans * sizeof(*dev->extra_vlan));
+       blobmsg_for_each_attr(cur, data, rem)
+               if (device_fill_vlan_range(&dev->extra_vlan[dev->n_extra_vlan],
+                                          blobmsg_get_string(cur)))
+                       dev->n_extra_vlan++;
+}
+
 void
 device_init_settings(struct device *dev, struct blob_attr **tb)
 {
@@ -399,6 +479,76 @@ device_init_settings(struct device *dev, struct blob_attr **tb)
                s->flags |= DEV_OPT_ISOLATE;
        }
 
+       if ((cur = tb[DEV_ATTR_DROP_V4_UNICAST_IN_L2_MULTICAST])) {
+               s->drop_v4_unicast_in_l2_multicast = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST;
+       }
+
+       if ((cur = tb[DEV_ATTR_DROP_V6_UNICAST_IN_L2_MULTICAST])) {
+               s->drop_v6_unicast_in_l2_multicast = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST;
+       }
+
+       if ((cur = tb[DEV_ATTR_DROP_GRATUITOUS_ARP])) {
+               s->drop_gratuitous_arp = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_DROP_GRATUITOUS_ARP;
+       }
+
+       if ((cur = tb[DEV_ATTR_DROP_UNSOLICITED_NA])) {
+               s->drop_unsolicited_na = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_DROP_UNSOLICITED_NA;
+       }
+
+       if ((cur = tb[DEV_ATTR_ARP_ACCEPT])) {
+               s->arp_accept = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_ARP_ACCEPT;
+       }
+
+       if ((cur = tb[DEV_ATTR_AUTH])) {
+               s->auth = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_AUTH;
+       }
+
+       if ((cur = tb[DEV_ATTR_SPEED])) {
+               s->speed = blobmsg_get_u32(cur);
+               s->flags |= DEV_OPT_SPEED;
+       }
+
+       if ((cur = tb[DEV_ATTR_DUPLEX])) {
+               s->duplex = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_DUPLEX;
+       }
+
+       if ((cur = tb[DEV_ATTR_PAUSE])) {
+               s->pause = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_PAUSE;
+       }
+
+       if ((cur = tb[DEV_ATTR_ASYM_PAUSE])) {
+               s->asym_pause = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_ASYM_PAUSE;
+       }
+
+       if ((cur = tb[DEV_ATTR_RXPAUSE])) {
+               s->rxpause = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_RXPAUSE;
+       }
+
+       if ((cur = tb[DEV_ATTR_TXPAUSE])) {
+               s->txpause = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_TXPAUSE;
+       }
+
+       if ((cur = tb[DEV_ATTR_AUTONEG])) {
+               s->autoneg = blobmsg_get_bool(cur);
+               s->flags |= DEV_OPT_AUTONEG;
+       }
+
+       cur = tb[DEV_ATTR_AUTH_VLAN];
+       free(dev->config_auth_vlans);
+       dev->config_auth_vlans = cur ? blob_memdup(cur) : NULL;
+
+       device_set_extra_vlans(dev, tb[DEV_ATTR_VLAN]);
        device_set_disabled(dev, disabled);
 }
 
@@ -407,6 +557,17 @@ static void __init dev_init(void)
        avl_init(&devices, avl_strcmp, true, NULL);
 }
 
+static int device_release_cb(void *ctx, struct safe_list *list)
+{
+       struct device_user *dep = container_of(list, struct device_user, list);
+
+       if (!dep->dev || !dep->claimed)
+               return 0;
+
+       device_release(dep);
+       return 0;
+}
+
 static int device_broadcast_cb(void *ctx, struct safe_list *list)
 {
        struct device_user *dep = container_of(list, struct device_user, list);
@@ -423,10 +584,31 @@ static int device_broadcast_cb(void *ctx, struct safe_list *list)
 
 void device_broadcast_event(struct device *dev, enum device_event ev)
 {
+       static const char * const event_names[] = {
+               [DEV_EVENT_ADD] = "add",
+               [DEV_EVENT_REMOVE] = "remove",
+               [DEV_EVENT_UP] = "up",
+               [DEV_EVENT_DOWN] = "down",
+               [DEV_EVENT_AUTH_UP] = "auth_up",
+               [DEV_EVENT_LINK_UP] = "link_up",
+               [DEV_EVENT_LINK_DOWN] = "link_down",
+               [DEV_EVENT_TOPO_CHANGE] = "topo_change",
+       };
        int dev_ev = ev;
 
        safe_list_for_each(&dev->aliases, device_broadcast_cb, &dev_ev);
        safe_list_for_each(&dev->users, device_broadcast_cb, &dev_ev);
+
+       if (ev >= ARRAY_SIZE(event_names) || !event_names[ev] || !dev->ifname[0])
+               return;
+
+       blob_buf_init(&b, 0);
+       blobmsg_add_string(&b, "name", dev->ifname);
+       blobmsg_add_u8(&b, "auth_status", dev->auth_status);
+       blobmsg_add_u8(&b, "present", dev->present);
+       blobmsg_add_u8(&b, "active", dev->active);
+       blobmsg_add_u8(&b, "link_active", dev->link_active);
+       netifd_ubus_device_notify(event_names[ev], b.head, -1);
 }
 
 static void
@@ -600,13 +782,13 @@ device_find(const char *name)
 }
 
 struct device *
-device_get(const char *name, int create)
+__device_get(const char *name, int create, bool check_vlan)
 {
        struct device *dev;
 
        dev = avl_find_element(&devices, name, dev, avl);
 
-       if (!dev && strchr(name, '.'))
+       if (!dev && check_vlan && strchr(name, '.'))
                return get_vlan_device_chain(name, create);
 
        if (name[0] == '@')
@@ -676,6 +858,36 @@ device_refresh_present(struct device *dev)
        __device_set_present(dev, state);
 }
 
+void
+device_set_auth_status(struct device *dev, bool value, struct blob_attr *vlans)
+{
+       if (!value)
+               vlans = NULL;
+       else if (!blob_attr_equal(vlans, dev->auth_vlans))
+               device_set_auth_status(dev, false, NULL);
+
+       free(dev->auth_vlans);
+       dev->auth_vlans = vlans ? blob_memdup(vlans) : NULL;
+
+       if (dev->auth_status == value)
+               return;
+
+       dev->auth_status = value;
+       if (!dev->present)
+               return;
+
+       if (dev->auth_status) {
+               device_broadcast_event(dev, DEV_EVENT_AUTH_UP);
+               return;
+       }
+
+       device_broadcast_event(dev, DEV_EVENT_LINK_DOWN);
+       if (!dev->link_active)
+               return;
+
+       device_broadcast_event(dev, DEV_EVENT_LINK_UP);
+}
+
 void device_set_present(struct device *dev, bool state)
 {
        if (dev->sys_present == state)
@@ -684,6 +896,8 @@ void device_set_present(struct device *dev, bool state)
        D(DEVICE, "%s '%s' %s present\n", dev->type->name, dev->ifname, state ? "is now" : "is no longer" );
        dev->sys_present = state;
        device_refresh_present(dev);
+       if (!state)
+               safe_list_for_each(&dev->users, device_release_cb, NULL);
 }
 
 void device_set_link(struct device *dev, bool state)
@@ -694,6 +908,8 @@ void device_set_link(struct device *dev, bool state)
        netifd_log_message(L_NOTICE, "%s '%s' link is %s\n", dev->type->name, dev->ifname, state ? "up" : "down" );
 
        dev->link_active = state;
+       if (!state)
+               dev->auth_status = false;
        device_broadcast_event(dev, state ? DEV_EVENT_LINK_UP : DEV_EVENT_LINK_DOWN);
 }
 
@@ -787,21 +1003,37 @@ static void
 device_free(struct device *dev)
 {
        __devlock++;
+       free(dev->auth_vlans);
        free(dev->config);
        device_cleanup(dev);
+       free(dev->config_auth_vlans);
+       free(dev->extra_vlan);
        dev->type->free(dev);
        __devlock--;
 }
 
 static void
-__device_free_unused(struct device *dev)
+__device_free_unused(struct uloop_timeout *timeout)
 {
-       if (!safe_list_empty(&dev->users) ||
-               !safe_list_empty(&dev->aliases) ||
-           dev->current_config || __devlock)
-               return;
+       struct device *dev, *tmp;
+
+       avl_for_each_element_safe(&devices, dev, avl, tmp) {
+               if (!safe_list_empty(&dev->users) ||
+                       !safe_list_empty(&dev->aliases) ||
+                       dev->current_config)
+                       continue;
 
-       device_free(dev);
+               device_free(dev);
+       }
+}
+
+void device_free_unused(void)
+{
+       static struct uloop_timeout free_timer = {
+               .cb = __device_free_unused,
+       };
+
+       uloop_timeout_set(&free_timer, 1);
 }
 
 void device_remove_user(struct device_user *dep)
@@ -818,19 +1050,7 @@ void device_remove_user(struct device_user *dep)
        safe_list_del(&dep->list);
        dep->dev = NULL;
        D(DEVICE, "Remove user for device '%s', refcount=%d\n", dev->ifname, device_refcount(dev));
-       __device_free_unused(dev);
-}
-
-void
-device_free_unused(struct device *dev)
-{
-       struct device *tmp;
-
-       if (dev)
-               return __device_free_unused(dev);
-
-       avl_for_each_element_safe(&devices, dev, avl, tmp)
-               __device_free_unused(dev);
+       device_free_unused();
 }
 
 void
@@ -934,14 +1154,18 @@ device_apply_config(struct device *dev, struct device_type *type,
 static void
 device_replace(struct device *dev, struct device *odev)
 {
-       struct device_user *dep, *tmp;
+       struct device_user *dep;
 
        __devlock++;
        if (odev->present)
                device_set_present(odev, false);
 
-       list_for_each_entry_safe(dep, tmp, &odev->users.list, list.list) {
+       while (!list_empty(&odev->users.list)) {
+               dep = list_first_entry(&odev->users.list, struct device_user, list.list);
                device_release(dep);
+               if (!dep->dev)
+                       continue;
+
                safe_list_del(&dep->list);
                __device_add_user(dep, dev);
        }
@@ -1051,6 +1275,7 @@ device_dump_status(struct blob_buf *b, struct device *dev)
 
        blobmsg_add_u8(b, "up", !!dev->active);
        blobmsg_add_u8(b, "carrier", !!dev->link_active);
+       blobmsg_add_u8(b, "auth_status", !!dev->auth_status);
 
        if (dev->type->dump_info)
                dev->type->dump_info(dev, b);
@@ -1107,6 +1332,18 @@ device_dump_status(struct blob_buf *b, struct device *dev)
                        blobmsg_add_u8(b, "unicast_flood", st.unicast_flood);
                if (st.flags & DEV_OPT_SENDREDIRECTS)
                        blobmsg_add_u8(b, "sendredirects", st.sendredirects);
+               if (st.flags & DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST)
+                       blobmsg_add_u8(b, "drop_v4_unicast_in_l2_multicast", st.drop_v4_unicast_in_l2_multicast);
+               if (st.flags & DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST)
+                       blobmsg_add_u8(b, "drop_v6_unicast_in_l2_multicast", st.drop_v6_unicast_in_l2_multicast);
+               if (st.flags & DEV_OPT_DROP_GRATUITOUS_ARP)
+                       blobmsg_add_u8(b, "drop_gratuitous_arp", st.drop_gratuitous_arp);
+               if (st.flags & DEV_OPT_DROP_UNSOLICITED_NA)
+                       blobmsg_add_u8(b, "drop_unsolicited_na", st.drop_unsolicited_na);
+               if (st.flags & DEV_OPT_ARP_ACCEPT)
+                       blobmsg_add_u8(b, "arp_accept", st.arp_accept);
+               if (st.flags & DEV_OPT_AUTH)
+                       blobmsg_add_u8(b, "auth", st.auth);
        }
 
        s = blobmsg_open_table(b, "statistics");
@@ -1121,3 +1358,16 @@ static void __init simple_device_type_init(void)
 {
        device_type_add(&simple_device_type);
 }
+
+void device_hotplug_event(const char *name, bool add)
+{
+       struct device *dev;
+
+       wireless_device_hotplug_event(name, add);
+
+       dev = device_find(name);
+       if (!dev || dev->type != &simple_device_type)
+               return;
+
+       device_set_present(dev, add);
+}