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-rw-r--r--net/tipc/node.h117
1 files changed, 4 insertions, 113 deletions
diff --git a/net/tipc/node.h b/net/tipc/node.h
index 651a1581a210..1fbed29d9a25 100644
--- a/net/tipc/node.h
+++ b/net/tipc/node.h
@@ -42,23 +42,8 @@
42#include "bearer.h" 42#include "bearer.h"
43#include "msg.h" 43#include "msg.h"
44 44
45/* Out-of-range value for node signature */
46#define INVALID_NODE_SIG 0x10000
47
48#define INVALID_BEARER_ID -1 45#define INVALID_BEARER_ID -1
49 46
50/* Flags used to take different actions according to flag type
51 * TIPC_NOTIFY_NODE_DOWN: notify node is down
52 * TIPC_NOTIFY_NODE_UP: notify node is up
53 * TIPC_DISTRIBUTE_NAME: publish or withdraw link state name type
54 */
55enum {
56 TIPC_NOTIFY_NODE_DOWN = (1 << 3),
57 TIPC_NOTIFY_NODE_UP = (1 << 4),
58 TIPC_NOTIFY_LINK_UP = (1 << 6),
59 TIPC_NOTIFY_LINK_DOWN = (1 << 7)
60};
61
62/* Optional capabilities supported by this code version 47/* Optional capabilities supported by this code version
63 */ 48 */
64enum { 49enum {
@@ -67,72 +52,6 @@ enum {
67 52
68#define TIPC_NODE_CAPABILITIES TIPC_BCAST_SYNCH 53#define TIPC_NODE_CAPABILITIES TIPC_BCAST_SYNCH
69 54
70struct tipc_link_entry {
71 struct tipc_link *link;
72 spinlock_t lock; /* per-link */
73 u32 mtu;
74 struct sk_buff_head inputq;
75 struct tipc_media_addr maddr;
76};
77
78struct tipc_bclink_entry {
79 struct tipc_link *link;
80 struct sk_buff_head inputq1;
81 struct sk_buff_head arrvq;
82 struct sk_buff_head inputq2;
83 struct sk_buff_head namedq;
84};
85
86/**
87 * struct tipc_node - TIPC node structure
88 * @addr: network address of node
89 * @ref: reference counter to node object
90 * @lock: rwlock governing access to structure
91 * @net: the applicable net namespace
92 * @hash: links to adjacent nodes in unsorted hash chain
93 * @inputq: pointer to input queue containing messages for msg event
94 * @namedq: pointer to name table input queue with name table messages
95 * @active_links: bearer ids of active links, used as index into links[] array
96 * @links: array containing references to all links to node
97 * @action_flags: bit mask of different types of node actions
98 * @state: connectivity state vs peer node
99 * @sync_point: sequence number where synch/failover is finished
100 * @list: links to adjacent nodes in sorted list of cluster's nodes
101 * @working_links: number of working links to node (both active and standby)
102 * @link_cnt: number of links to node
103 * @capabilities: bitmap, indicating peer node's functional capabilities
104 * @signature: node instance identifier
105 * @link_id: local and remote bearer ids of changing link, if any
106 * @publ_list: list of publications
107 * @rcu: rcu struct for tipc_node
108 */
109struct tipc_node {
110 u32 addr;
111 struct kref kref;
112 rwlock_t lock;
113 struct net *net;
114 struct hlist_node hash;
115 int active_links[2];
116 struct tipc_link_entry links[MAX_BEARERS];
117 struct tipc_bclink_entry bc_entry;
118 int action_flags;
119 struct list_head list;
120 int state;
121 u16 sync_point;
122 int link_cnt;
123 u16 working_links;
124 u16 capabilities;
125 u32 signature;
126 u32 link_id;
127 struct list_head publ_list;
128 struct list_head conn_sks;
129 unsigned long keepalive_intv;
130 struct timer_list timer;
131 struct rcu_head rcu;
132};
133
134struct tipc_node *tipc_node_find(struct net *net, u32 addr);
135void tipc_node_put(struct tipc_node *node);
136void tipc_node_stop(struct net *net); 55void tipc_node_stop(struct net *net);
137void tipc_node_check_dest(struct net *net, u32 onode, 56void tipc_node_check_dest(struct net *net, u32 onode,
138 struct tipc_bearer *bearer, 57 struct tipc_bearer *bearer,
@@ -140,13 +59,8 @@ void tipc_node_check_dest(struct net *net, u32 onode,
140 struct tipc_media_addr *maddr, 59 struct tipc_media_addr *maddr,
141 bool *respond, bool *dupl_addr); 60 bool *respond, bool *dupl_addr);
142void tipc_node_delete_links(struct net *net, int bearer_id); 61void tipc_node_delete_links(struct net *net, int bearer_id);
143void tipc_node_attach_link(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
144void tipc_node_detach_link(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
145bool tipc_node_is_up(struct tipc_node *n);
146int tipc_node_get_linkname(struct net *net, u32 bearer_id, u32 node, 62int tipc_node_get_linkname(struct net *net, u32 bearer_id, u32 node,
147 char *linkname, size_t len); 63 char *linkname, size_t len);
148void tipc_node_read_lock(struct tipc_node *n);
149void tipc_node_read_unlock(struct tipc_node *node);
150int tipc_node_xmit(struct net *net, struct sk_buff_head *list, u32 dnode, 64int tipc_node_xmit(struct net *net, struct sk_buff_head *list, u32 dnode,
151 int selector); 65 int selector);
152int tipc_node_xmit_skb(struct net *net, struct sk_buff *skb, u32 dest, 66int tipc_node_xmit_skb(struct net *net, struct sk_buff *skb, u32 dest,
@@ -156,33 +70,10 @@ void tipc_node_unsubscribe(struct net *net, struct list_head *subscr, u32 addr);
156void tipc_node_broadcast(struct net *net, struct sk_buff *skb); 70void tipc_node_broadcast(struct net *net, struct sk_buff *skb);
157int tipc_node_add_conn(struct net *net, u32 dnode, u32 port, u32 peer_port); 71int tipc_node_add_conn(struct net *net, u32 dnode, u32 port, u32 peer_port);
158void tipc_node_remove_conn(struct net *net, u32 dnode, u32 port); 72void tipc_node_remove_conn(struct net *net, u32 dnode, u32 port);
73int tipc_node_get_mtu(struct net *net, u32 addr, u32 sel);
159int tipc_nl_node_dump(struct sk_buff *skb, struct netlink_callback *cb); 74int tipc_nl_node_dump(struct sk_buff *skb, struct netlink_callback *cb);
160 75int tipc_nl_node_reset_link_stats(struct sk_buff *skb, struct genl_info *info);
161static inline struct tipc_link *node_active_link(struct tipc_node *n, int sel) 76int tipc_nl_node_get_link(struct sk_buff *skb, struct genl_info *info);
162{ 77int tipc_nl_node_set_link(struct sk_buff *skb, struct genl_info *info);
163 int bearer_id = n->active_links[sel & 1];
164
165 if (unlikely(bearer_id == INVALID_BEARER_ID))
166 return NULL;
167
168 return n->links[bearer_id].link;
169}
170
171static inline unsigned int tipc_node_get_mtu(struct net *net, u32 addr, u32 sel)
172{
173 struct tipc_node *n;
174 int bearer_id;
175 unsigned int mtu = MAX_MSG_SIZE;
176
177 n = tipc_node_find(net, addr);
178 if (unlikely(!n))
179 return mtu;
180
181 bearer_id = n->active_links[sel & 1];
182 if (likely(bearer_id != INVALID_BEARER_ID))
183 mtu = n->links[bearer_id].mtu;
184 tipc_node_put(n);
185 return mtu;
186}
187 78
188#endif 79#endif