2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 #ifndef OPENAFS_WINNT_AFSD_CM_SERVER_H
11 #define OPENAFS_WINNT_AFSD_CM_SERVER_H 1
16 /* this value is set to 1022 in order to */
17 #define NUM_SERVER_VOLS (32 - sizeof(void *) / 4)
18 typedef struct cm_server_vols {
19 afs_uint32 ids[NUM_SERVER_VOLS];
20 struct cm_server_vols *nextp;
23 /* pointed to by volumes and cells without holds; cm_serverLock is obtained
24 * at the appropriate times to change the pointers to these servers.
26 typedef struct cm_server {
27 osi_queue_t allq; /* locked by cm_serverLock */
28 struct sockaddr_in addr; /* by mx */
30 struct cm_conn *connsp; /* locked by cm_connLock */
31 afs_int32 flags; /* by mx */
32 afs_int32 waitCount; /* by mx */
33 afs_int32 capabilities; /* by mx */
34 struct cm_cell *cellp; /* cell containing this server */
35 afs_int32 refCount; /* Interlocked with cm_serverLock */
37 unsigned short ipRank; /* network class rank */
38 unsigned short adminRank; /* set if admin sets a rank
39 * (fs setserverpref or registry or dns)
41 unsigned short activeRank; /* Computed rank combining ipRank, adminRank,
42 * and performance data.
44 cm_server_vols_t * vols; /* by mx */
45 time_t downTime; /* by mx */
46 afsUUID uuid; /* by mx */
49 enum repstate {srv_not_busy, srv_busy, srv_offline, srv_deleted};
51 typedef struct cm_serverRef {
52 struct cm_serverRef *next; /* locked by cm_serverLock */
53 struct cm_server *server; /* locked by cm_serverLock */
54 enum repstate status; /* locked by cm_serverLock */
55 afs_int32 refCount; /* locked by cm_serverLock */
56 afs_uint32 volID; /* locked by cm_serverLock */
60 #define CM_SERVER_VLDB 1 /* a VLDB server */
61 #define CM_SERVER_FILE 2 /* a file server */
64 #define CM_SERVERFLAG_DOWN 0x1 /* server is down */
65 #define CM_SERVERFLAG_PREF_SET 0x2 /* server preference set by user */
66 #define CM_SERVERFLAG_PINGING 0x4 /* a ping against this server in progress */
67 #define CM_SERVERFLAG_NO64BIT 0x8 /* server has no support for
69 #define CM_SERVERFLAG_NOINLINEBULK 0x10 /* server has no support for inline bulk */
70 #define CM_SERVERFLAG_UUID 0x20 /* server uuid is known */
72 /* flags for procedures */
73 #define CM_FLAG_CHECKUPSERVERS 1 /* check working servers */
74 #define CM_FLAG_CHECKDOWNSERVERS 2 /* check down servers */
75 #define CM_FLAG_CHECKVLDBSERVERS 4 /* check only vldb servers */
76 #define CM_FLAG_CHECKFILESERVERS 8 /* check only file servers */
78 /* values for ipRank */
79 #define CM_IPRANK_TOP 5000 /* on same machine */
80 #define CM_IPRANK_HI 20000 /* on same subnet */
81 #define CM_IPRANK_MED 30000 /* on same network */
82 #define CM_IPRANK_LOW 40000 /* on different networks */
83 #define CM_IPRANK_DOWN 65535 /* unavailable */
85 /* the maximum number of network interfaces that this client has */
87 #define CM_MAXINTERFACE_ADDR 16
89 extern cm_server_t *cm_NewServer(struct sockaddr_in *addrp, int type,
90 struct cm_cell *cellp, afsUUID *uuidp, afs_uint32 flags);
92 extern cm_serverRef_t *cm_NewServerRef(struct cm_server *serverp, afs_uint32 volID);
94 extern void cm_GetServerRef(cm_serverRef_t *tsrp, int locked);
96 extern afs_int32 cm_PutServerRef(cm_serverRef_t *tsrp, int locked);
98 extern LONG_PTR cm_ChecksumServerList(cm_serverRef_t *serversp);
100 extern void cm_GetServer(cm_server_t *);
102 extern void cm_GetServerNoLock(cm_server_t *);
104 extern void cm_PutServer(cm_server_t *);
106 extern void cm_PutServerNoLock(cm_server_t *);
108 extern cm_server_t *cm_FindServer(struct sockaddr_in *addrp, int type, int locked);
110 extern osi_rwlock_t cm_serverLock;
112 extern osi_rwlock_t cm_syscfgLock;
114 extern void cm_InitServer(void);
116 extern void cm_CheckServers(afs_uint32 flags, struct cm_cell *cellp);
118 extern cm_server_t *cm_allServersp;
120 extern afs_int32 cm_RankServer(cm_server_t * server);
122 extern void cm_RankUpServers();
124 extern void cm_SetServerIPRank(cm_server_t * serverp);
126 extern afs_int32 cm_UpdateIFInfo(void);
128 extern void cm_InsertServerList(cm_serverRef_t** list,cm_serverRef_t* element);
130 extern long cm_ChangeRankServer(cm_serverRef_t** list, cm_server_t* server);
132 extern void cm_RandomizeServer(cm_serverRef_t** list);
134 extern void cm_FreeServer(cm_server_t* server);
136 extern afs_uint32 cm_ServerListSize(cm_serverRef_t* list);
138 #define CM_FREESERVERLIST_DELETE 1
140 extern void cm_FreeServerList(cm_serverRef_t** list, afs_uint32 flags);
142 extern void cm_ForceNewConnectionsAllServers(void);
144 extern void cm_SetServerNo64Bit(cm_server_t * serverp, int no64bit);
146 extern void cm_SetServerNoInlineBulk(cm_server_t * serverp, int no);
148 extern cm_server_t * cm_FindServerByIP(afs_uint32 addr, unsigned short port, int type, int locked);
150 extern cm_server_t * cm_FindServerByUuid(afsUUID* uuid, int type, int locked);
152 extern void cm_SetLanAdapterChangeDetected(void);
154 extern void cm_RemoveVolumeFromServer(cm_server_t * serverp, afs_uint32 volID);
156 extern int cm_DumpServers(FILE *outputFile, char *cookie, int lock);
158 extern int cm_ServerEqual(cm_server_t *srv1, cm_server_t *srv2);
160 extern int cm_IsServerListEmpty(cm_serverRef_t *serversp);
162 extern void cm_ServerClearRPCStats(void);
164 /* Protected by cm_syscfgLock (rw) */
165 extern int cm_noIPAddr; /* number of client network interfaces */
166 extern int cm_IPAddr[CM_MAXINTERFACE_ADDR]; /* client's IP address in host order */
167 extern int cm_SubnetMask[CM_MAXINTERFACE_ADDR];/* client's subnet mask in host order*/
168 extern int cm_NetMtu[CM_MAXINTERFACE_ADDR]; /* client's MTU sizes */
169 extern int cm_NetFlags[CM_MAXINTERFACE_ADDR]; /* network flags */
170 extern int cm_LanAdapterChangeDetected;
172 /* Protected by cm_serverLock */
173 extern cm_server_t *cm_serversAllFirstp;
174 extern cm_server_t *cm_serversAllLastp;
175 extern afs_uint32 cm_numFileServers;
176 extern afs_uint32 cm_numVldbServers;
177 #endif /* OPENAFS_WINNT_AFSD_CM_SERVER_H */