2 * net/tipc/core.h: Include file for TIPC global declarations
4 * Copyright (c) 2005-2006, 2013-2018 Ericsson AB
5 * Copyright (c) 2005-2007, 2010-2013, Wind River Systems
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40 #include <linux/tipc.h>
41 #include <linux/tipc_config.h>
42 #include <linux/tipc_netlink.h>
43 #include <linux/types.h>
44 #include <linux/kernel.h>
45 #include <linux/errno.h>
47 #include <linux/timer.h>
48 #include <linux/string.h>
49 #include <linux/uaccess.h>
50 #include <linux/interrupt.h>
51 #include <linux/atomic.h>
52 #include <linux/netdevice.h>
54 #include <linux/list.h>
55 #include <linux/slab.h>
56 #include <linux/vmalloc.h>
57 #include <linux/rtnetlink.h>
58 #include <linux/etherdevice.h>
59 #include <net/netns/generic.h>
60 #include <linux/rhashtable.h>
61 #include <net/genetlink.h>
67 struct tipc_name_table;
71 #define TIPC_MOD_VER "2.0.0"
73 #define NODE_HTABLE_SIZE 512
75 #define TIPC_DEF_MON_THRESHOLD 32
76 #define NODE_ID_LEN 16
77 #define NODE_ID_STR_LEN (NODE_ID_LEN * 2 + 1)
79 extern unsigned int tipc_net_id __read_mostly;
80 extern int sysctl_tipc_rmem[3] __read_mostly;
81 extern int sysctl_tipc_named_timeout __read_mostly;
84 u8 node_id[NODE_ID_LEN];
87 unsigned long addr_trial_end;
88 char node_id_string[NODE_ID_STR_LEN];
91 bool legacy_addr_format;
93 /* Node table and node list */
94 spinlock_t node_list_lock;
95 struct hlist_head node_htable[NODE_HTABLE_SIZE];
96 struct list_head node_list;
100 /* Neighbor monitoring list */
101 struct tipc_monitor *monitors[MAX_BEARERS];
105 struct tipc_bearer __rcu *bearer_list[MAX_BEARERS + 1];
109 struct tipc_bc_base *bcbase;
110 struct tipc_link *bcl;
112 /* Socket hash table */
113 struct rhashtable sk_rht;
116 spinlock_t nametbl_lock;
117 struct name_table *nametbl;
119 /* Name dist queue */
120 struct list_head dist_queue;
122 /* Topology subscription server */
123 struct tipc_topsrv *topsrv;
124 atomic_t subscription_count;
126 /* Cluster capabilities */
129 /* Tracing of node internal messages */
130 struct packet_type loopback_pt;
133 static inline struct tipc_net *tipc_net(struct net *net)
135 return net_generic(net, tipc_net_id);
138 static inline int tipc_netid(struct net *net)
140 return tipc_net(net)->net_id;
143 static inline struct list_head *tipc_nodes(struct net *net)
145 return &tipc_net(net)->node_list;
148 static inline struct name_table *tipc_name_table(struct net *net)
150 return tipc_net(net)->nametbl;
153 static inline struct tipc_topsrv *tipc_topsrv(struct net *net)
155 return tipc_net(net)->topsrv;
158 static inline unsigned int tipc_hashfn(u32 addr)
160 return addr & (NODE_HTABLE_SIZE - 1);
163 static inline u16 mod(u16 x)
168 static inline int less_eq(u16 left, u16 right)
170 return mod(right - left) < 32768u;
173 static inline int more(u16 left, u16 right)
175 return !less_eq(left, right);
178 static inline int less(u16 left, u16 right)
180 return less_eq(left, right) && (mod(right) != mod(left));
183 static inline int in_range(u16 val, u16 min, u16 max)
185 return !less(val, min) && !more(val, max);
189 int tipc_register_sysctl(void);
190 void tipc_unregister_sysctl(void);
192 #define tipc_register_sysctl() 0
193 #define tipc_unregister_sysctl()