[TIPC_NLA_MEDIA_PROP] = { .type = NLA_NESTED }
};
-static void bearer_disable(struct net *net, struct tipc_bearer *b_ptr,
- bool shutting_down);
+static void bearer_disable(struct net *net, struct tipc_bearer *b_ptr);
/**
* tipc_media_find - locates specified media object by name
rcu_read_lock();
b_ptr = rcu_dereference_rtnl(tn->bearer_list[bearer_id]);
- if (b_ptr) {
- tipc_bcbearer_sort(net, &b_ptr->nodes, dest, true);
+ if (b_ptr)
tipc_disc_add_dest(b_ptr->link_req);
- }
rcu_read_unlock();
}
rcu_read_lock();
b_ptr = rcu_dereference_rtnl(tn->bearer_list[bearer_id]);
- if (b_ptr) {
- tipc_bcbearer_sort(net, &b_ptr->nodes, dest, false);
+ if (b_ptr)
tipc_disc_remove_dest(b_ptr->link_req);
- }
rcu_read_unlock();
}
res = tipc_disc_create(net, b_ptr, &b_ptr->bcast_addr);
if (res) {
- bearer_disable(net, b_ptr, false);
+ bearer_disable(net, b_ptr);
pr_warn("Bearer <%s> rejected, discovery object creation failed\n",
name);
return -EINVAL;
static int tipc_reset_bearer(struct net *net, struct tipc_bearer *b_ptr)
{
pr_info("Resetting bearer <%s>\n", b_ptr->name);
- tipc_link_reset_list(net, b_ptr->identity);
+ tipc_node_delete_links(net, b_ptr->identity);
tipc_disc_reset(net, b_ptr);
return 0;
}
*
* Note: This routine assumes caller holds RTNL lock.
*/
-static void bearer_disable(struct net *net, struct tipc_bearer *b_ptr,
- bool shutting_down)
+static void bearer_disable(struct net *net, struct tipc_bearer *b_ptr)
{
struct tipc_net *tn = net_generic(net, tipc_net_id);
u32 i;
pr_info("Disabling bearer <%s>\n", b_ptr->name);
b_ptr->media->disable_media(b_ptr);
- tipc_link_delete_list(net, b_ptr->identity, shutting_down);
+ tipc_node_delete_links(net, b_ptr->identity);
+ RCU_INIT_POINTER(b_ptr->media_ptr, NULL);
if (b_ptr->link_req)
tipc_disc_delete(b_ptr->link_req);
/* tipc_disable_l2_media - detach TIPC bearer from an L2 interface
*
- * Mark L2 bearer as inactive so that incoming buffers are thrown away,
- * then get worker thread to complete bearer cleanup. (Can't do cleanup
- * here because cleanup code needs to sleep and caller holds spinlocks.)
+ * Mark L2 bearer as inactive so that incoming buffers are thrown away
*/
void tipc_disable_l2_media(struct tipc_bearer *b)
{
struct net_device *dev;
dev = (struct net_device *)rtnl_dereference(b->media_ptr);
- RCU_INIT_POINTER(b->media_ptr, NULL);
RCU_INIT_POINTER(dev->tipc_ptr, NULL);
synchronize_net();
dev_put(dev);
* @b_ptr: the bearer through which the packet is to be sent
* @dest: peer destination address
*/
-int tipc_l2_send_msg(struct net *net, struct sk_buff *buf,
+int tipc_l2_send_msg(struct net *net, struct sk_buff *skb,
struct tipc_bearer *b, struct tipc_media_addr *dest)
{
- struct sk_buff *clone;
struct net_device *dev;
int delta;
if (!dev)
return 0;
- clone = skb_clone(buf, GFP_ATOMIC);
- if (!clone)
- return 0;
-
- delta = dev->hard_header_len - skb_headroom(buf);
+ delta = dev->hard_header_len - skb_headroom(skb);
if ((delta > 0) &&
- pskb_expand_head(clone, SKB_DATA_ALIGN(delta), 0, GFP_ATOMIC)) {
- kfree_skb(clone);
+ pskb_expand_head(skb, SKB_DATA_ALIGN(delta), 0, GFP_ATOMIC)) {
+ kfree_skb(skb);
return 0;
}
- skb_reset_network_header(clone);
- clone->dev = dev;
- clone->protocol = htons(ETH_P_TIPC);
- dev_hard_header(clone, dev, ETH_P_TIPC, dest->value,
- dev->dev_addr, clone->len);
- dev_queue_xmit(clone);
+ skb_reset_network_header(skb);
+ skb->dev = dev;
+ skb->protocol = htons(ETH_P_TIPC);
+ dev_hard_header(skb, dev, ETH_P_TIPC, dest->value,
+ dev->dev_addr, skb->len);
+ dev_queue_xmit(skb);
return 0;
}
-/* tipc_bearer_send- sends buffer to destination over bearer
- *
- * IMPORTANT:
- * The media send routine must not alter the buffer being passed in
- * as it may be needed for later retransmission!
+int tipc_bearer_mtu(struct net *net, u32 bearer_id)
+{
+ int mtu = 0;
+ struct tipc_bearer *b;
+
+ rcu_read_lock();
+ b = rcu_dereference_rtnl(tipc_net(net)->bearer_list[bearer_id]);
+ if (b)
+ mtu = b->mtu;
+ rcu_read_unlock();
+ return mtu;
+}
+
+/* tipc_bearer_xmit_skb - sends buffer to destination over bearer
+ */
+void tipc_bearer_xmit_skb(struct net *net, u32 bearer_id,
+ struct sk_buff *skb,
+ struct tipc_media_addr *dest)
+{
+ struct tipc_net *tn = tipc_net(net);
+ struct tipc_bearer *b;
+
+ rcu_read_lock();
+ b = rcu_dereference_rtnl(tn->bearer_list[bearer_id]);
+ if (likely(b))
+ b->media->send_msg(net, skb, b, dest);
+ rcu_read_unlock();
+}
+
+/* tipc_bearer_xmit() -send buffer to destination over bearer
*/
-void tipc_bearer_send(struct net *net, u32 bearer_id, struct sk_buff *buf,
- struct tipc_media_addr *dest)
+void tipc_bearer_xmit(struct net *net, u32 bearer_id,
+ struct sk_buff_head *xmitq,
+ struct tipc_media_addr *dst)
{
struct tipc_net *tn = net_generic(net, tipc_net_id);
- struct tipc_bearer *b_ptr;
+ struct tipc_bearer *b;
+ struct sk_buff *skb, *tmp;
+
+ if (skb_queue_empty(xmitq))
+ return;
rcu_read_lock();
- b_ptr = rcu_dereference_rtnl(tn->bearer_list[bearer_id]);
- if (likely(b_ptr))
- b_ptr->media->send_msg(net, buf, b_ptr, dest);
+ b = rcu_dereference_rtnl(tn->bearer_list[bearer_id]);
+ if (likely(b)) {
+ skb_queue_walk_safe(xmitq, skb, tmp) {
+ __skb_dequeue(xmitq);
+ b->media->send_msg(net, skb, b, dst);
+ }
+ }
+ rcu_read_unlock();
+}
+
+/* tipc_bearer_bc_xmit() - broadcast buffers to all destinations
+ */
+void tipc_bearer_bc_xmit(struct net *net, u32 bearer_id,
+ struct sk_buff_head *xmitq)
+{
+ struct tipc_net *tn = tipc_net(net);
+ int net_id = tn->net_id;
+ struct tipc_bearer *b;
+ struct sk_buff *skb, *tmp;
+ struct tipc_msg *hdr;
+
+ rcu_read_lock();
+ b = rcu_dereference_rtnl(tn->bearer_list[bearer_id]);
+ if (likely(b)) {
+ skb_queue_walk_safe(xmitq, skb, tmp) {
+ hdr = buf_msg(skb);
+ msg_set_non_seq(hdr, 1);
+ msg_set_mc_netid(hdr, net_id);
+ __skb_dequeue(xmitq);
+ b->media->send_msg(net, skb, b, &b->bcast_addr);
+ }
+ }
rcu_read_unlock();
}
case NETDEV_CHANGE:
if (netif_carrier_ok(dev))
break;
- case NETDEV_DOWN:
+ case NETDEV_GOING_DOWN:
case NETDEV_CHANGEMTU:
tipc_reset_bearer(net, b_ptr);
break;
break;
case NETDEV_UNREGISTER:
case NETDEV_CHANGENAME:
- bearer_disable(dev_net(dev), b_ptr, false);
+ bearer_disable(dev_net(dev), b_ptr);
break;
}
return NOTIFY_OK;
for (i = 0; i < MAX_BEARERS; i++) {
b_ptr = rtnl_dereference(tn->bearer_list[i]);
if (b_ptr) {
- bearer_disable(net, b_ptr, true);
+ bearer_disable(net, b_ptr);
tn->bearer_list[i] = NULL;
}
}
return -EINVAL;
}
- bearer_disable(net, bearer, false);
+ bearer_disable(net, bearer);
rtnl_unlock();
return 0;
char *name;
struct tipc_bearer *b;
struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1];
- struct net *net = genl_info_net(info);
+ struct net *net = sock_net(skb->sk);
if (!info->attrs[TIPC_NLA_BEARER])
return -EINVAL;
Code Review / kvmfornfv.git / blobdiff