/* Out-of-range value for node signature */
#define INVALID_NODE_SIG 0x10000
+#define INVALID_BEARER_ID -1
+
/* Flags used to take different actions according to flag type
- * TIPC_WAIT_PEER_LINKS_DOWN: wait to see that peer's links are down
- * TIPC_WAIT_OWN_LINKS_DOWN: wait until peer node is declared down
* TIPC_NOTIFY_NODE_DOWN: notify node is down
* TIPC_NOTIFY_NODE_UP: notify node is up
* TIPC_DISTRIBUTE_NAME: publish or withdraw link state name type
*/
enum {
TIPC_MSG_EVT = 1,
- TIPC_WAIT_PEER_LINKS_DOWN = (1 << 1),
- TIPC_WAIT_OWN_LINKS_DOWN = (1 << 2),
TIPC_NOTIFY_NODE_DOWN = (1 << 3),
TIPC_NOTIFY_NODE_UP = (1 << 4),
TIPC_WAKEUP_BCAST_USERS = (1 << 5),
u32 deferred_size;
struct sk_buff_head deferdq;
struct sk_buff *reasm_buf;
- int inputq_map;
+ struct sk_buff_head namedq;
bool recv_permitted;
};
+struct tipc_link_entry {
+ struct tipc_link *link;
+ u32 mtu;
+ struct sk_buff_head inputq;
+ struct tipc_media_addr maddr;
+};
+
/**
* struct tipc_node - TIPC node structure
* @addr: network address of node
* @hash: links to adjacent nodes in unsorted hash chain
* @inputq: pointer to input queue containing messages for msg event
* @namedq: pointer to name table input queue with name table messages
- * @curr_link: the link holding the node lock, if any
- * @active_links: pointers to active links to node
- * @links: pointers to all links to node
+ * @active_links: bearer ids of active links, used as index into links[] array
+ * @links: array containing references to all links to node
* @action_flags: bit mask of different types of node actions
* @bclink: broadcast-related info
+ * @state: connectivity state vs peer node
+ * @sync_point: sequence number where synch/failover is finished
* @list: links to adjacent nodes in sorted list of cluster's nodes
* @working_links: number of working links to node (both active and standby)
* @link_cnt: number of links to node
struct hlist_node hash;
struct sk_buff_head *inputq;
struct sk_buff_head *namedq;
- struct tipc_link *active_links[2];
- u32 act_mtus[2];
- struct tipc_link *links[MAX_BEARERS];
+ int active_links[2];
+ struct tipc_link_entry links[MAX_BEARERS];
int action_flags;
struct tipc_node_bclink bclink;
struct list_head list;
+ int state;
+ u16 sync_point;
int link_cnt;
u16 working_links;
u16 capabilities;
u32 link_id;
struct list_head publ_list;
struct list_head conn_sks;
+ unsigned long keepalive_intv;
+ struct timer_list timer;
struct rcu_head rcu;
};
struct tipc_node *tipc_node_find(struct net *net, u32 addr);
void tipc_node_put(struct tipc_node *node);
-struct tipc_node *tipc_node_create(struct net *net, u32 addr);
void tipc_node_stop(struct net *net);
+void tipc_node_check_dest(struct net *net, u32 onode,
+ struct tipc_bearer *bearer,
+ u16 capabilities, u32 signature,
+ struct tipc_media_addr *maddr,
+ bool *respond, bool *dupl_addr);
+void tipc_node_delete_links(struct net *net, int bearer_id);
void tipc_node_attach_link(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
void tipc_node_detach_link(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
-void tipc_node_link_down(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
-void tipc_node_link_up(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
-int tipc_node_active_links(struct tipc_node *n_ptr);
-int tipc_node_is_up(struct tipc_node *n_ptr);
+bool tipc_node_is_up(struct tipc_node *n);
int tipc_node_get_linkname(struct net *net, u32 bearer_id, u32 node,
char *linkname, size_t len);
void tipc_node_unlock(struct tipc_node *node);
+int tipc_node_xmit(struct net *net, struct sk_buff_head *list, u32 dnode,
+ int selector);
+int tipc_node_xmit_skb(struct net *net, struct sk_buff *skb, u32 dest,
+ u32 selector);
int tipc_node_add_conn(struct net *net, u32 dnode, u32 port, u32 peer_port);
void tipc_node_remove_conn(struct net *net, u32 dnode, u32 port);
-
int tipc_nl_node_dump(struct sk_buff *skb, struct netlink_callback *cb);
static inline void tipc_node_lock(struct tipc_node *node)
spin_lock_bh(&node->lock);
}
-static inline bool tipc_node_blocked(struct tipc_node *node)
+static inline struct tipc_link *node_active_link(struct tipc_node *n, int sel)
{
- return (node->action_flags & (TIPC_WAIT_PEER_LINKS_DOWN |
- TIPC_NOTIFY_NODE_DOWN | TIPC_WAIT_OWN_LINKS_DOWN));
+ int bearer_id = n->active_links[sel & 1];
+
+ if (unlikely(bearer_id == INVALID_BEARER_ID))
+ return NULL;
+
+ return n->links[bearer_id].link;
}
-static inline uint tipc_node_get_mtu(struct net *net, u32 addr, u32 selector)
+static inline unsigned int tipc_node_get_mtu(struct net *net, u32 addr, u32 sel)
{
- struct tipc_node *node;
- u32 mtu;
-
- node = tipc_node_find(net, addr);
+ struct tipc_node *n;
+ int bearer_id;
+ unsigned int mtu = MAX_MSG_SIZE;
- if (likely(node)) {
- mtu = node->act_mtus[selector & 1];
- tipc_node_put(node);
- } else {
- mtu = MAX_MSG_SIZE;
- }
+ n = tipc_node_find(net, addr);
+ if (unlikely(!n))
+ return mtu;
+ bearer_id = n->active_links[sel & 1];
+ if (likely(bearer_id != INVALID_BEARER_ID))
+ mtu = n->links[bearer_id].mtu;
+ tipc_node_put(n);
return mtu;
}
projects / cascardo / linux.git / blobdiff