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-rw-r--r--net/tipc/core.h171
1 files changed, 39 insertions, 132 deletions
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 84602137ce20..3dc68c7a966d 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -37,8 +37,6 @@
37#ifndef _TIPC_CORE_H 37#ifndef _TIPC_CORE_H
38#define _TIPC_CORE_H 38#define _TIPC_CORE_H
39 39
40#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
41
42#include <linux/tipc.h> 40#include <linux/tipc.h>
43#include <linux/tipc_config.h> 41#include <linux/tipc_config.h>
44#include <linux/tipc_netlink.h> 42#include <linux/tipc_netlink.h>
@@ -59,47 +57,54 @@
59#include <linux/vmalloc.h> 57#include <linux/vmalloc.h>
60#include <linux/rtnetlink.h> 58#include <linux/rtnetlink.h>
61#include <linux/etherdevice.h> 59#include <linux/etherdevice.h>
60#include <net/netns/generic.h>
61#include <linux/rhashtable.h>
62
63#include "node.h"
64#include "bearer.h"
65#include "bcast.h"
66#include "netlink.h"
67#include "link.h"
68#include "node.h"
69#include "msg.h"
62 70
63#define TIPC_MOD_VER "2.0.0" 71#define TIPC_MOD_VER "2.0.0"
64 72
65#define ULTRA_STRING_MAX_LEN 32768 73extern int tipc_net_id __read_mostly;
66#define TIPC_MAX_SUBSCRIPTIONS 65535 74extern int sysctl_tipc_rmem[3] __read_mostly;
67#define TIPC_MAX_PUBLICATIONS 65535 75extern int sysctl_tipc_named_timeout __read_mostly;
68 76
69struct tipc_msg; /* msg.h */ 77struct tipc_net {
78 u32 own_addr;
79 int net_id;
80 int random;
70 81
71int tipc_snprintf(char *buf, int len, const char *fmt, ...); 82 /* Node table and node list */
83 spinlock_t node_list_lock;
84 struct hlist_head node_htable[NODE_HTABLE_SIZE];
85 struct list_head node_list;
86 u32 num_nodes;
87 u32 num_links;
72 88
73/* 89 /* Bearer list */
74 * TIPC-specific error codes 90 struct tipc_bearer __rcu *bearer_list[MAX_BEARERS + 1];
75 */
76#define ELINKCONG EAGAIN /* link congestion <=> resource unavailable */
77 91
78/* 92 /* Broadcast link */
79 * Global configuration variables 93 struct tipc_bcbearer *bcbearer;
80 */ 94 struct tipc_bclink *bclink;
81extern u32 tipc_own_addr __read_mostly; 95 struct tipc_link *bcl;
82extern int tipc_max_ports __read_mostly;
83extern int tipc_net_id __read_mostly;
84extern int sysctl_tipc_rmem[3] __read_mostly;
85extern int sysctl_tipc_named_timeout __read_mostly;
86 96
87/* 97 /* Socket hash table */
88 * Other global variables 98 struct rhashtable sk_rht;
89 */
90extern int tipc_random __read_mostly;
91 99
92/* 100 /* Name table */
93 * Routines available to privileged subsystems 101 spinlock_t nametbl_lock;
94 */ 102 struct name_table *nametbl;
95int tipc_netlink_start(void); 103
96void tipc_netlink_stop(void); 104 /* Topology subscription server */
97int tipc_socket_init(void); 105 struct tipc_server *topsrv;
98void tipc_socket_stop(void); 106 atomic_t subscription_count;
99int tipc_sock_create_local(int type, struct socket **res); 107};
100void tipc_sock_release_local(struct socket *sock);
101int tipc_sock_accept_local(struct socket *sock, struct socket **newsock,
102 int flags);
103 108
104#ifdef CONFIG_SYSCTL 109#ifdef CONFIG_SYSCTL
105int tipc_register_sysctl(void); 110int tipc_register_sysctl(void);
@@ -108,102 +113,4 @@ void tipc_unregister_sysctl(void);
108#define tipc_register_sysctl() 0 113#define tipc_register_sysctl() 0
109#define tipc_unregister_sysctl() 114#define tipc_unregister_sysctl()
110#endif 115#endif
111
112/*
113 * TIPC timer code
114 */
115typedef void (*Handler) (unsigned long);
116
117/**
118 * k_init_timer - initialize a timer
119 * @timer: pointer to timer structure
120 * @routine: pointer to routine to invoke when timer expires
121 * @argument: value to pass to routine when timer expires
122 *
123 * Timer must be initialized before use (and terminated when no longer needed).
124 */
125static inline void k_init_timer(struct timer_list *timer, Handler routine,
126 unsigned long argument)
127{
128 setup_timer(timer, routine, argument);
129}
130
131/**
132 * k_start_timer - start a timer
133 * @timer: pointer to timer structure
134 * @msec: time to delay (in ms)
135 *
136 * Schedules a previously initialized timer for later execution.
137 * If timer is already running, the new timeout overrides the previous request.
138 *
139 * To ensure the timer doesn't expire before the specified delay elapses,
140 * the amount of delay is rounded up when converting to the jiffies
141 * then an additional jiffy is added to account for the fact that
142 * the starting time may be in the middle of the current jiffy.
143 */
144static inline void k_start_timer(struct timer_list *timer, unsigned long msec)
145{
146 mod_timer(timer, jiffies + msecs_to_jiffies(msec) + 1);
147}
148
149/**
150 * k_cancel_timer - cancel a timer
151 * @timer: pointer to timer structure
152 *
153 * Cancels a previously initialized timer.
154 * Can be called safely even if the timer is already inactive.
155 *
156 * WARNING: Must not be called when holding locks required by the timer's
157 * timeout routine, otherwise deadlock can occur on SMP systems!
158 */
159static inline void k_cancel_timer(struct timer_list *timer)
160{
161 del_timer_sync(timer);
162}
163
164/**
165 * k_term_timer - terminate a timer
166 * @timer: pointer to timer structure
167 *
168 * Prevents further use of a previously initialized timer.
169 *
170 * WARNING: Caller must ensure timer isn't currently running.
171 *
172 * (Do not "enhance" this routine to automatically cancel an active timer,
173 * otherwise deadlock can arise when a timeout routine calls k_term_timer.)
174 */
175static inline void k_term_timer(struct timer_list *timer)
176{
177}
178
179/*
180 * TIPC message buffer code
181 *
182 * TIPC message buffer headroom reserves space for the worst-case
183 * link-level device header (in case the message is sent off-node).
184 *
185 * Note: Headroom should be a multiple of 4 to ensure the TIPC header fields
186 * are word aligned for quicker access
187 */
188#define BUF_HEADROOM LL_MAX_HEADER
189
190struct tipc_skb_cb {
191 void *handle;
192 struct sk_buff *tail;
193 bool deferred;
194 bool wakeup_pending;
195 bool bundling;
196 u16 chain_sz;
197 u16 chain_imp;
198};
199
200#define TIPC_SKB_CB(__skb) ((struct tipc_skb_cb *)&((__skb)->cb[0]))
201
202static inline struct tipc_msg *buf_msg(struct sk_buff *skb)
203{
204 return (struct tipc_msg *)skb->data;
205}
206
207struct sk_buff *tipc_buf_acquire(u32 size);
208
209#endif 116#endif