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
11 /* kdump for SGI needs MP and SP versions of rx_serverQueueEntry,
12 * rx_peer, rx_connection and rx_call structs. rx.h gets included a
13 * second time to pick up mp_ versions of those structs. Currently
14 * the affected struct's have #ifdef's in them for the second pass.
15 * This should change once we start using only ANSI compilers.
16 * Actually, kdump does not use rx_serverQueueEntry, but I'm including
17 * it for completeness.
26 /* Substitute VOID (char) for void, because some compilers are confused by void
27 * in some situations */
33 #include "../rx/rx_kmutex.h"
34 #include "../rx/rx_kernel.h"
35 #include "../rx/rx_clock.h"
36 #include "../rx/rx_event.h"
37 #include "../rx/rx_queue.h"
38 #include "../rx/rx_packet.h"
39 #include "../rx/rx_misc.h"
40 #include "../netinet/in.h"
42 # include <sys/types.h>
44 #ifdef AFS_PTHREAD_ENV
45 # include <rx/rx_pthread.h>
53 # include "rx_clock.h"
54 # include "rx_event.h"
55 # include "rx_packet.h"
58 # include <netinet/in.h>
63 /* Configurable parameters */
64 #define RX_IDLE_DEAD_TIME 60 /* default idle dead time */
65 #define RX_MAX_SERVICES 20 /* Maximum number of services that may be installed */
66 #define RX_DEFAULT_STACK_SIZE 16000 /* Default process stack size; overriden by rx_SetStackSize */
68 /* This parameter should not normally be changed */
69 #define RX_PROCESS_PRIORITY LWP_NORMAL_PRIORITY
71 /* backoff is fixed point binary. Ie, units of 1/4 seconds */
72 #define MAXBACKOFF 0x1F
74 #define ADDRSPERSITE 16
76 /* Exported interfaces XXXX clean this up: not all of these are exported*/
78 struct rx_service *rx_NewService();
79 struct rx_connection *rx_NewConnection();
80 struct rx_call *rx_NewCall();
81 struct rx_call *rx_GetCall(); /* Not normally used, but not obsolete */
82 afs_int32 rx_EndCall();
83 int rx_AllocPackets();
84 void rx_FreePackets();
95 int rxi_WritevAlloc();
98 int rxi_FillReadVec();
99 void rxi_FlushWrite();
100 void rx_PrintStats();
101 void rx_PrintPeerStats();
102 void rx_SetArrivalProc();
106 typedef void (*rx_destructor_t)(void *);
107 int rx_KeyCreate(rx_destructor_t);
108 void *rx_GetSpecific(struct rx_connection *conn, int key);
109 void rx_SetSpecific(struct rx_connection *conn, int key, void *ptr);
111 int ntoh_syserr_conv(int error);
114 #define RX_DONTWAIT 0
116 #define rx_ConnectionOf(call) ((call)->conn)
117 #define rx_PeerOf(conn) ((conn)->peer)
118 #define rx_HostOf(peer) ((peer)->host)
119 #define rx_PortOf(peer) ((peer)->port)
120 #define rx_SetLocalStatus(call, status) ((call)->localStatus = (status))
121 #define rx_GetLocalStatus(call, status) ((call)->localStatus)
122 #define rx_GetRemoteStatus(call) ((call)->remoteStatus)
123 #define rx_Error(call) ((call)->error)
124 #define rx_ConnError(conn) ((conn)->error)
125 #define rx_IsServerConn(conn) ((conn)->type == RX_SERVER_CONNECTION)
126 #define rx_IsClientConn(conn) ((conn)->type == RX_CLIENT_CONNECTION)
127 /* Don't use these; use the IsServerConn style */
128 #define rx_ServerConn(conn) ((conn)->type == RX_SERVER_CONNECTION)
129 #define rx_ClientConn(conn) ((conn)->type == RX_CLIENT_CONNECTION)
130 #define rx_IsUsingPktCksum(conn) ((conn)->flags & RX_CONN_USING_PACKET_CKSUM)
131 #define rx_ServiceIdOf(conn) ((conn)->serviceId)
132 #define rx_SecurityClassOf(conn) ((conn)->securityIndex)
133 #define rx_SecurityObjectOf(conn) ((conn)->securityObject)
136 * Macros callable by the user to further define attributes of a
137 * service. Must be called before rx_StartServer
140 /* Set the service stack size. This currently just sets the stack
141 * size for all processes to be the maximum seen, so far */
142 #define rx_SetStackSize(service, stackSize) \
143 rx_stackSize = (((stackSize) > rx_stackSize)? stackSize: rx_stackSize)
145 /* Set minimum number of processes guaranteed to be available for this
146 * service at all times */
147 #define rx_SetMinProcs(service, min) ((service)->minProcs = (min))
149 /* Set maximum number of processes that will be made available to this
150 * service (also a guarantee that this number will be made available
151 * if there is no competition) */
152 #define rx_SetMaxProcs(service, max) ((service)->maxProcs = (max))
154 /* Define a procedure to be called just before a server connection is destroyed */
155 #define rx_SetDestroyConnProc(service,proc) ((service)->destroyConnProc = (proc))
157 /* Define procedure to set service dead time */
158 #define rx_SetIdleDeadTime(service,time) ((service)->idleDeadTime = (time))
160 /* Define procedures for getting and setting before and after execute-request procs */
161 #define rx_SetAfterProc(service,proc) ((service)->afterProc = (proc))
162 #define rx_SetBeforeProc(service,proc) ((service)->beforeProc = (proc))
163 #define rx_GetAfterProc(service) ((service)->afterProc)
164 #define rx_GetBeforeProc(service) ((service)->beforeProc)
166 /* Define a procedure to be called when a server connection is created */
167 #define rx_SetNewConnProc(service, proc) ((service)->newConnProc = (proc))
169 /* NOTE: We'll probably redefine the following three routines, again, sometime. */
171 /* Set the connection dead time for any connections created for this service (server only) */
172 #define rx_SetServiceDeadTime(service, seconds) ((service)->secondsUntilDead = (seconds))
174 /* Set connection dead time, for a specific client or server connection */
175 extern void rx_SetConnDeadTime();
177 /* Set connection hard timeout for a connection */
178 #define rx_SetConnHardDeadTime(conn, seconds) ((conn)->hardDeadTime = (seconds))
180 /* Set the overload threshold and the overload error */
181 #define rx_SetBusyThreshold(threshold, code) (rx_BusyThreshold=(threshold),rx_BusyError=(code))
183 /* If this flag is set,no new requests are processed by rx, all new requests are
184 returned with an error code of RX_CALL_DEAD ( transient error ) */
185 #define rx_SetRxTranquil() (rx_tranquil = 1)
186 #define rx_ClearRxTranquil() (rx_tranquil = 0)
188 /* Set the threshold and time to delay aborts for consecutive errors */
189 #define rx_SetCallAbortThreshold(A) (rxi_callAbortThreshhold = (A))
190 #define rx_SetCallAbortDelay(A) (rxi_callAbortDelay = (A))
191 #define rx_SetConnAbortThreshold(A) (rxi_connAbortThreshhold = (A))
192 #define rx_SetConnAbortDelay(A) (rxi_connAbortDelay = (A))
194 #define cpspace(call) ((call)->curlen)
195 #define cppos(call) ((call)->curpos)
197 #define rx_Read(call, buf, nbytes) rx_ReadProc(call, buf, nbytes)
198 #define rx_Read32(call, value) rx_ReadProc32(call, value)
199 #define rx_Readv(call, iov, nio, maxio, nbytes) \
200 rx_ReadvProc(call, iov, nio, maxio, nbytes)
201 #define rx_Write(call, buf, nbytes) rx_WriteProc(call, buf, nbytes)
202 #define rx_Write32(call, value) rx_WriteProc32(call, value)
203 #define rx_Writev(call, iov, nio, nbytes) \
204 rx_WritevProc(call, iov, nio, nbytes)
206 /* This is the maximum size data packet that can be sent on this connection, accounting for security module-specific overheads. */
207 #define rx_MaxUserDataSize(call) ((call)->MTU - RX_HEADER_SIZE - (call)->conn->securityHeaderSize - (call)->conn->securityMaxTrailerSize)
209 /* Macros to turn the hot thread feature on and off. Enabling hot threads
210 * allows the listener thread to trade places with an idle worker thread,
211 * which moves the context switch from listener to worker out of the
214 #define rx_EnableHotThread() (rx_enable_hot_thread = 1)
215 #define rx_DisableHotThread() (rx_enable_hot_thread = 0)
217 struct rx_securityObjectStats {
218 char type; /* 0:unk 1:null,2:vab 3:kad */
220 char sparec[10]; /* force correct alignment */
221 afs_int32 flags; /* 1=>unalloc, 2=>auth, 4=>expired */
223 afs_uint32 packetsReceived;
224 afs_uint32 packetsSent;
225 afs_uint32 bytesReceived;
226 afs_uint32 bytesSent;
231 /* XXXX (rewrite this description) A security class object contains a set of
232 * procedures and some private data to implement a security model for rx
233 * connections. These routines are called by rx as appropriate. Rx knows
234 * nothing about the internal details of any particular security model, or
235 * about security state. Rx does maintain state per connection on behalf of
236 * the security class. Each security class implementation is also expected to
237 * provide routines to create these objects. Rx provides a basic routine to
238 * allocate one of these objects; this routine must be called by the class. */
239 struct rx_securityClass {
240 struct rx_securityOps {
241 int (*op_Close)(/* obj */);
242 int (*op_NewConnection)(/* obj, conn */);
243 int (*op_PreparePacket)(/* obj, call, packet */);
244 int (*op_SendPacket)(/*obj, call, packet */);
245 int (*op_CheckAuthentication)(/*obj,conn*/);
246 int (*op_CreateChallenge)(/*obj,conn*/);
247 int (*op_GetChallenge)(/*obj,conn,packet*/);
248 int (*op_GetResponse)(/*obj,conn,packet*/);
249 int (*op_CheckResponse)(/*obj,conn,packet*/);
250 int (*op_CheckPacket) (/*obj,call,packet*/);
251 int (*op_DestroyConnection)(/*obj, conn*/);
252 int (*op_GetStats)(/*obj, conn, stats*/);
261 #define RXS_OP(obj,op,args) ((obj->ops->op_ ## op) ? (*(obj)->ops->op_ ## op)args : 0)
263 #define RXS_Close(obj) RXS_OP(obj,Close,(obj))
264 #define RXS_NewConnection(obj,conn) RXS_OP(obj,NewConnection,(obj,conn))
265 #define RXS_PreparePacket(obj,call,packet) RXS_OP(obj,PreparePacket,(obj,call,packet))
266 #define RXS_SendPacket(obj,call,packet) RXS_OP(obj,SendPacket,(obj,call,packet))
267 #define RXS_CheckAuthentication(obj,conn) RXS_OP(obj,CheckAuthentication,(obj,conn))
268 #define RXS_CreateChallenge(obj,conn) RXS_OP(obj,CreateChallenge,(obj,conn))
269 #define RXS_GetChallenge(obj,conn,packet) RXS_OP(obj,GetChallenge,(obj,conn,packet))
270 #define RXS_GetResponse(obj,conn,packet) RXS_OP(obj,GetResponse,(obj,conn,packet))
271 #define RXS_CheckResponse(obj,conn,packet) RXS_OP(obj,CheckResponse,(obj,conn,packet))
272 #define RXS_CheckPacket(obj,call,packet) RXS_OP(obj,CheckPacket,(obj,call,packet))
273 #define RXS_DestroyConnection(obj,conn) RXS_OP(obj,DestroyConnection,(obj,conn))
274 #define RXS_GetStats(obj,conn,stats) RXS_OP(obj,GetStats,(obj,conn,stats))
276 /* A service is installed by rx_NewService, and specifies a service type that
277 * is exported by this process. Incoming calls are stamped with the service
278 * type, and must match an installed service for the call to be accepted.
279 * Each service exported has a (port,serviceId) pair to uniquely identify it.
280 * It is also named: this is intended to allow a remote statistics gathering
281 * program to retrieve per service statistics without having to know the local
282 * service id's. Each service has a number of
285 /* security objects (instances of security classes) which implement
286 * various types of end-to-end security protocols for connections made
287 * to this service. Finally, there are two parameters controlling the
288 * number of requests which may be executed in parallel by this
289 * service: minProcs is the number of requests to this service which
290 * are guaranteed to be able to run in parallel at any time; maxProcs
291 * has two meanings: it limits the total number of requests which may
292 * execute in parallel and it also guarantees that that many requests
293 * may be handled in parallel if no other service is handling any
297 u_short serviceId; /* Service number */
298 u_short servicePort; /* UDP port for this service */
299 char *serviceName; /* Name of the service */
300 osi_socket socket; /* socket structure or file descriptor */
301 u_short nRequestsRunning; /* Number of requests currently in progress */
302 u_short nSecurityObjects; /* Number of entries in security objects array */
303 struct rx_securityClass **securityObjects; /* Array of security class objects */
304 afs_int32 (*executeRequestProc)(); /* Routine to call when an rpc request is received */
305 VOID (*destroyConnProc)(); /* Routine to call when a server connection is destroyed */
306 VOID (*newConnProc)(); /* Routine to call when a server connection is created */
307 VOID (*beforeProc)(); /* routine to call before a call is executed */
308 VOID (*afterProc)(); /* routine to call after a call is executed */
309 u_short maxProcs; /* Maximum procs to be used for this service */
310 u_short minProcs; /* Minimum # of requests guaranteed executable simultaneously */
311 u_short connDeadTime; /* Seconds until a client of this service will be declared dead, if it is not responding */
312 u_short idleDeadTime; /* Time a server will wait for I/O to start up again */
315 #endif /* KDUMP_RX_LOCK */
317 /* A server puts itself on an idle queue for a service using an
318 * instance of the following structure. When a call arrives, the call
319 * structure pointer is placed in "newcall", the routine to execute to
320 * service the request is placed in executeRequestProc, and the
321 * process is woken up. The queue entry's address is used for the
322 * sleep/wakeup. If socketp is non-null, then this thread is willing
323 * to become a listener thread. A thread sets *socketp to -1 before
324 * sleeping. If *socketp is not -1 when the thread awakes, it is now
325 * the listener thread for *socketp. When socketp is non-null, tno
326 * contains the server's threadID, which is used to make decitions in GetCall.
329 struct rx_serverQueueEntry_rx_lock {
331 struct rx_serverQueueEntry {
333 struct rx_queue queueItemHeader;
335 struct rx_call_rx_lock *newcall;
337 struct rx_call *newcall;
339 #ifdef RX_ENABLE_LOCKS
347 #ifndef KDUMP_RX_LOCK
348 /* Bottom n-bits of the Call Identifier give the call number */
349 #define RX_MAXCALLS 4 /* Power of 2; max async calls per connection */
350 #define RX_CIDSHIFT 2 /* Log2(RX_MAXCALLS) */
351 #define RX_CHANNELMASK (RX_MAXCALLS-1)
352 #define RX_CIDMASK (~RX_CHANNELMASK)
353 #endif /* !KDUMP_RX_LOCK */
355 /* A peer refers to a peer process, specified by a (host,port) pair. There may be more than one peer on a given host. */
357 struct rx_peer_rx_lock {
358 struct rx_peer_rx_lock *next; /* Next in hash conflict or free list */
361 struct rx_peer *next; /* Next in hash conflict or free list */
363 #ifdef RX_ENABLE_LOCKS
364 afs_kmutex_t peer_lock; /* Lock peer */
365 #endif /* RX_ENABLE_LOCKS */
366 afs_uint32 host; /* Remote IP address, in net byte order */
367 u_short port; /* Remote UDP port, in net byte order */
369 /* interface mtu probably used for this host - includes RX Header */
370 u_short ifMTU; /* doesn't include IP header */
372 /* For garbage collection */
373 afs_uint32 idleWhen; /* When the refcountwent to zero */
374 short refCount; /* Reference count for this structure */
376 /* Congestion control parameters */
377 u_char burstSize; /* Reinitialization size for the burst parameter */
378 u_char burst; /* Number of packets that can be transmitted right now, without pausing */
379 struct clock burstWait; /* Delay until new burst is allowed */
380 struct rx_queue congestionQueue; /* Calls that are waiting for non-zero burst value */
381 int rtt; /* Round trip time, measured in milliseconds/8 */
382 int rtt_dev; /* rtt smoothed error, in milliseconds/4 */
383 struct clock timeout; /* Current retransmission delay */
384 int nSent; /* Total number of distinct data packets sent, not including retransmissions */
385 int reSends; /* Total number of retransmissions for this peer, since this structure was created */
387 /* Skew: if a packet is received N packets later than expected (based
388 * on packet serial numbers), then we define it to have a skew of N.
389 * The maximum skew values allow us to decide when a packet hasn't
390 * been received yet because it is out-of-order, as opposed to when it
391 * is likely to have been dropped. */
392 afs_uint32 inPacketSkew; /* Maximum skew on incoming packets */
393 afs_uint32 outPacketSkew; /* Peer-reported max skew on our sent packets */
394 int rateFlag; /* Flag for rate testing (-no 0yes +decrement) */
396 /* the "natural" MTU, excluding IP,UDP headers, is negotiated by the endpoints */
399 /* negotiated maximum number of packets to send in a single datagram. */
400 u_short maxDgramPackets;
401 /* local maximum number of packets to send in a single datagram. */
402 u_short ifDgramPackets;
404 * MTU, cwind, and nDgramPackets are used to initialize
405 * slow start parameters for new calls. These values are set whenever a
406 * call sends a retransmission and at the end of each call.
407 * congestSeq is incremented each time the congestion parameters are
408 * changed by a call recovering from a dropped packet. A call used
409 * MAX when updating congestion parameters if it started with the
410 * current congestion sequence number, otherwise it uses MIN.
412 u_short MTU; /* MTU for AFS 3.4a jumboGrams */
413 u_short cwind; /* congestion window */
414 u_short nDgramPackets; /* number packets per AFS 3.5 jumbogram */
415 u_short congestSeq; /* Changed when a call retransmits */
416 afs_hyper_t bytesSent; /* Number of bytes sent to this peer */
417 afs_hyper_t bytesReceived; /* Number of bytes received from this peer */
418 struct rx_queue rpcStats; /* rpc statistic list */
421 /* A connection is an authenticated communication path, allowing
422 limited multiple asynchronous conversations. */
424 struct rx_connection_rx_lock {
425 struct rx_connection_rx_lock *next; /* on hash chain _or_ free list */
426 struct rx_peer_rx_lock *peer;
428 struct rx_connection {
429 struct rx_connection *next; /* on hash chain _or_ free list */
430 struct rx_peer *peer;
432 #ifdef RX_ENABLE_LOCKS
433 afs_kmutex_t conn_call_lock; /* locks conn_call_cv */
434 afs_kcondvar_t conn_call_cv;
435 afs_kmutex_t conn_data_lock; /* locks packet data */
437 afs_uint32 epoch; /* Process start time of client side of connection */
438 afs_uint32 cid; /* Connection id (call channel is bottom bits) */
439 afs_int32 error; /* If this connection is in error, this is it */
441 struct rx_call_rx_lock *call[RX_MAXCALLS];
443 struct rx_call *call[RX_MAXCALLS];
445 afs_uint32 callNumber[RX_MAXCALLS]; /* Current call numbers */
446 afs_uint32 serial; /* Next outgoing packet serial number */
447 afs_uint32 lastSerial; /* # of last packet received, for computing skew */
448 afs_int32 maxSerial; /* largest serial number seen on incoming packets */
449 /* afs_int32 maxPacketSize; max packet size should be per-connection since */
450 /* peer process could be restarted on us. Includes RX Header. */
451 struct rxevent *challengeEvent; /* Scheduled when the server is challenging a */
452 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
453 int abortCount; /* count of abort messages sent */
454 /* client-- to retransmit the challenge */
455 struct rx_service *service; /* used by servers only */
456 u_short serviceId; /* To stamp on requests (clients only) */
457 u_short refCount; /* Reference count */
458 u_char flags; /* Defined below */
459 u_char type; /* Type of connection, defined below */
460 u_char secondsUntilPing; /* how often to ping for each active call */
461 u_char securityIndex; /* corresponds to the security class of the */
462 /* securityObject for this conn */
463 struct rx_securityClass *securityObject; /* Security object for this connection */
464 VOID *securityData; /* Private data for this conn's security class */
465 u_short securityHeaderSize; /* Length of security module's packet header data */
466 u_short securityMaxTrailerSize; /* Length of security module's packet trailer data */
468 int timeout; /* Overall timeout per call (seconds) for this conn */
469 int lastSendTime; /* Last send time for this connection */
470 u_short secondsUntilDead; /* Maximum silence from peer before RX_CALL_DEAD */
471 u_short hardDeadTime; /* hard max for call execution */
472 u_char ackRate; /* how many packets between ack requests */
473 int nSpecific; /* number entries in specific data */
474 void **specific; /* pointer to connection specific data */
477 #ifndef KDUMP_RX_LOCK
478 /* Flag bits for connection structure */
479 #define RX_CONN_MAKECALL_WAITING 1 /* rx_MakeCall is waiting for a channel */
480 #define RX_CONN_DESTROY_ME 2 /* Destroy *client* connection after last call */
481 #define RX_CONN_USING_PACKET_CKSUM 4 /* non-zero header.spare field seen */
482 #define RX_CONN_KNOW_WINDOW 8 /* window size negotiation works */
483 #define RX_CONN_RESET 16 /* connection is reset, remove */
485 /* Type of connection, client or server */
486 #define RX_CLIENT_CONNECTION 0
487 #define RX_SERVER_CONNECTION 1
488 #endif /* !KDUMP_RX_LOCK */
490 /* Call structure: only instantiated for active calls and dallying server calls. The permanent call state (i.e. the call number as well as state shared with other calls associated with this connection) is maintained in the connection structure. */
492 struct rx_call_rx_lock {
496 struct rx_queue queue_item_header; /* Call can be on various queues (one-at-a-time) */
497 struct rx_queue tq; /* Transmit packet queue */
498 struct rx_queue rq; /* Receive packet queue */
500 * The following fields are accessed while the call is unlocked.
501 * These fields are used by the caller/server thread to marshall
502 * and unmarshall RPC data. The only time they may be changed by
503 * other threads is when the RX_CALL_IOVEC_WAIT flag is set.
505 * NOTE: Be sure that these fields start and end on a double
506 * word boundary. Otherwise threads that are changing
507 * adjacent fields will cause problems.
509 struct rx_queue iovq; /* readv/writev packet queue */
510 u_short nLeft; /* Number bytes left in first receive packet */
511 u_short curvec; /* current iovec in currentPacket */
512 u_short curlen; /* bytes remaining in curvec */
513 u_short nFree; /* Number bytes free in last send packet */
514 struct rx_packet *currentPacket;/* Current packet being assembled or being read */
515 char *curpos; /* current position in curvec */
517 * End of fields accessed with call unlocked
519 u_char channel; /* Index of call, within connection */
520 u_char state; /* Current call state as defined below */
521 u_char mode; /* Current mode of a call in ACTIVE state */
522 #ifdef RX_ENABLE_LOCKS
523 afs_kmutex_t lock; /* lock covers data as well as mutexes. */
524 afs_kmutex_t *call_queue_lock; /* points to lock for queue we're on,
526 afs_kcondvar_t cv_twind;
527 afs_kcondvar_t cv_rq;
528 afs_kcondvar_t cv_tq;
531 struct rx_connection_rx_lock *conn; /* Parent connection for call */
533 struct rx_connection *conn; /* Parent connection for this call */
535 afs_uint32 *callNumber; /* Pointer to call number field within connection */
536 afs_uint32 flags; /* Some random flags */
537 u_char localStatus; /* Local user status sent out of band */
538 u_char remoteStatus; /* Remote user status received out of band */
539 afs_int32 error; /* Error condition for this call */
540 afs_uint32 timeout; /* High level timeout for this call */
541 afs_uint32 rnext; /* Next sequence number expected to be read by rx_ReadData */
542 afs_uint32 rprev; /* Previous packet received; used for deciding what the next packet to be received should be, in order to decide whether a negative acknowledge should be sent */
543 afs_uint32 rwind; /* The receive window: the peer must not send packets with sequence numbers >= rnext+rwind */
544 afs_uint32 tfirst; /* First unacknowledged transmit packet number */
545 afs_uint32 tnext; /* Next transmit sequence number to use */
546 u_short twind; /* The transmit window: we cannot assign a sequence number to a packet >= tfirst + twind */
547 u_short cwind; /* The congestion window */
548 u_short nSoftAcked; /* Number soft acked transmit packets */
549 u_short nextCwind; /* The congestion window after recovery */
550 u_short nCwindAcks; /* Number acks received at current cwind */
551 u_short ssthresh; /* The slow start threshold */
552 u_short nDgramPackets; /* Packets per AFS 3.5 jumbogram */
553 u_short nAcks; /* The number of consecttive acks */
554 u_short nNacks; /* Number packets acked that follow the
555 * first negatively acked packet */
556 u_short nSoftAcks; /* The number of delayed soft acks */
557 u_short nHardAcks; /* The number of delayed hard acks */
558 u_short congestSeq; /* Peer's congestion sequence counter */
559 struct rxevent *resendEvent; /* If this is non-Null, there is a retransmission event pending */
560 struct rxevent *timeoutEvent; /* If this is non-Null, then there is an overall timeout for this call */
561 struct rxevent *keepAliveEvent; /* Scheduled periodically in active calls to keep call alive */
562 struct rxevent *delayedAckEvent; /* Scheduled after all packets are received to send an ack if a reply or new call is not generated soon */
563 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
564 int abortCode; /* error code from last RPC */
565 int abortCount; /* number of times last error was sent */
566 u_int lastSendTime; /* Last time a packet was sent on this call */
567 u_int lastReceiveTime; /* Last time a packet was received for this call */
568 VOID (*arrivalProc)(); /* Procedure to call when reply is received */
569 VOID *arrivalProcHandle; /* Handle to pass to replyFunc */
570 VOID *arrivalProcArg; /* Additional arg to pass to reply Proc */
571 afs_uint32 lastAcked; /* last packet "hard" acked by receiver */
572 afs_uint32 startWait; /* time server began waiting for input data/send quota */
573 struct clock traceWait; /* time server began waiting for input data/send quota */
574 struct clock traceStart; /* time the call started running */
575 u_short MTU; /* size of packets currently sending */
576 #ifdef RX_ENABLE_LOCKS
577 short refCount; /* Used to keep calls from disappearring
578 when we get them from a queue. */
579 #endif /* RX_ENABLE_LOCKS */
580 /* Call refcount modifiers */
581 #define RX_CALL_REFCOUNT_BEGIN 0 /* GetCall/NewCall/EndCall */
582 #define RX_CALL_REFCOUNT_RESEND 1 /* resend event */
583 #define RX_CALL_REFCOUNT_DELAY 2 /* delayed ack */
584 #define RX_CALL_REFCOUNT_ALIVE 3 /* keep alive event */
585 #define RX_CALL_REFCOUNT_PACKET 4 /* waiting for packets. */
586 #define RX_CALL_REFCOUNT_SEND 5 /* rxi_Send */
587 #define RX_CALL_REFCOUNT_ACKALL 6 /* rxi_AckAll */
588 #define RX_CALL_REFCOUNT_ABORT 7 /* delayed abort */
589 #define RX_CALL_REFCOUNT_MAX 8 /* array size. */
590 #ifdef RX_REFCOUNT_CHECK
591 short refCDebug[RX_CALL_REFCOUNT_MAX];
592 #endif /* RX_REFCOUNT_CHECK */
593 int iovNBytes; /* byte count for current iovec */
594 int iovMax; /* number elements in current iovec */
595 int iovNext; /* next entry in current iovec */
596 struct iovec *iov; /* current iovec */
597 struct clock queueTime; /* time call was queued */
598 struct clock startTime; /* time call was started */
599 afs_hyper_t bytesSent; /* Number bytes sent */
600 afs_hyper_t bytesRcvd; /* Number bytes received */
603 #ifndef KDUMP_RX_LOCK
604 /* Major call states */
605 #define RX_STATE_NOTINIT 0 /* Call structure has never been initialized */
606 #define RX_STATE_PRECALL 1 /* Server-only: call is not in progress, but packets have arrived */
607 #define RX_STATE_ACTIVE 2 /* An active call; a process is dealing with this call */
608 #define RX_STATE_DALLY 3 /* Dallying after process is done with call */
609 #define RX_STATE_HOLD 4 /* Waiting for acks on reply data packets */
611 /* Call modes: the modes of a call in RX_STATE_ACTIVE state (process attached) */
612 #define RX_MODE_SENDING 1 /* Sending or ready to send */
613 #define RX_MODE_RECEIVING 2 /* Receiving or ready to receive */
614 #define RX_MODE_ERROR 3 /* Something in error for current conversation */
615 #define RX_MODE_EOF 4 /* Server has flushed (or client has read) last reply packet */
618 #define RX_CALL_READER_WAIT 1 /* Reader is waiting for next packet */
619 #define RX_CALL_WAIT_WINDOW_ALLOC 2 /* Sender is waiting for window to allocate buffers */
620 #define RX_CALL_WAIT_WINDOW_SEND 4 /* Sender is waiting for window to send buffers */
621 #define RX_CALL_WAIT_PACKETS 8 /* Sender is waiting for packet buffers */
622 #define RX_CALL_WAIT_PROC 16 /* Waiting for a process to be assigned */
623 #define RX_CALL_RECEIVE_DONE 32 /* All packets received on this call */
624 #define RX_CALL_CLEARED 64 /* Receive queue cleared in precall state */
625 #define RX_CALL_TQ_BUSY 128 /* Call's Xmit Queue is busy; don't modify */
626 #define RX_CALL_TQ_CLEARME 256 /* Need to clear this call's TQ later */
627 #define RX_CALL_TQ_SOME_ACKED 512 /* rxi_Start needs to discard ack'd packets. */
628 #define RX_CALL_TQ_WAIT 1024 /* Reader is waiting for TQ_BUSY to be reset */
629 #define RX_CALL_FAST_RECOVER 2048 /* call is doing congestion recovery */
630 #define RX_CALL_FAST_RECOVER_WAIT 4096 /* thread is waiting to start recovery */
631 #define RX_CALL_SLOW_START_OK 8192 /* receiver acks every other packet */
632 #define RX_CALL_IOVEC_WAIT 16384 /* waiting thread is using an iovec */
633 #define RX_CALL_HAVE_LAST 32768 /* Last packet has been received */
634 #define RX_CALL_NEED_START 0x10000 /* tells rxi_Start to start again */
636 /* Maximum number of acknowledgements in an acknowledge packet */
637 #define RX_MAXACKS 255
639 /* The structure of the data portion of an acknowledge packet: An acknowledge
640 * packet is in network byte order at all times. An acknowledgement is always
641 * prompted for a specific reason by a specific incoming packet. This reason
642 * is reported in "reason" and the packet's sequence number in the packet
643 * header.seq. In addition to this information, all of the current
644 * acknowledgement information about this call is placed in the packet.
645 * "FirstPacket" is the sequence number of the first packet represented in an
646 * array of bytes, "acks", containing acknowledgement information for a number
647 * of consecutive packets. All packets prior to FirstPacket are implicitly
648 * acknowledged: the sender need no longer be concerned about them. Packets
649 * from firstPacket+nAcks and on are not acknowledged. Packets in the range
650 * [firstPacket,firstPacket+nAcks) are each acknowledged explicitly. The
651 * acknowledgement may be RX_NACK if the packet is not (currently) at the
652 * receiver (it may have never been received, or received and then later
653 * dropped), or it may be RX_ACK if the packet is queued up waiting to be read
654 * by the upper level software. RX_ACK does not imply that the packet may not
655 * be dropped before it is read; it does imply that the sender should stop
656 * retransmitting the packet until notified otherwise. The field
657 * previousPacket identifies the previous packet received by the peer. This
658 * was used in a previous version of this software, and could be used in the
659 * future. The serial number in the data part of the ack packet corresponds to
660 * the serial number oof the packet which prompted the acknowledge. Any
661 * packets which are explicitly not acknowledged, and which were last
662 * transmitted with a serial number less than the provided serial number,
663 * should be retransmitted immediately. Actually, this is slightly inaccurate:
664 * packets are not necessarily received in order. When packets are habitually
665 * transmitted out of order, this is allowed for in the retransmission
666 * algorithm by introducing the notion of maximum packet skew: the degree of
667 * out-of-orderness of the packets received on the wire. This number is
668 * communicated from the receiver to the sender in ack packets. */
670 struct rx_ackPacket {
671 u_short bufferSpace; /* Number of packet buffers available. That is: the number of buffers that the sender of the ack packet is willing to provide for data, on this or subsequent calls. Lying is permissable. */
672 u_short maxSkew; /* Maximum difference between serial# of packet acknowledged and highest packet yet received */
673 afs_uint32 firstPacket; /* The first packet in the list of acknowledged packets */
674 afs_uint32 previousPacket; /* The previous packet number received (obsolete?) */
675 afs_uint32 serial; /* Serial number of the packet which prompted the acknowledge */
676 u_char reason; /* Reason for the acknowledge of ackPacket, defined below */
677 u_char nAcks; /* Number of acknowledgements */
678 u_char acks[RX_MAXACKS]; /* Up to RX_MAXACKS packet acknowledgements, defined below */
679 /* Packets <firstPacket are implicitly acknowledged and may be discarded by the sender. Packets >= firstPacket+nAcks are implicitly NOT acknowledged. No packets with sequence numbers >= firstPacket should be discarded by the sender (they may thrown out at any time by the receiver) */
682 #define FIRSTACKOFFSET 4
684 /* Reason for acknowledge message */
685 #define RX_ACK_REQUESTED 1 /* Peer requested an ack on this packet */
686 #define RX_ACK_DUPLICATE 2 /* Duplicate packet */
687 #define RX_ACK_OUT_OF_SEQUENCE 3 /* Packet out of sequence */
688 #define RX_ACK_EXCEEDS_WINDOW 4 /* Packet sequence number higher than window; discarded */
689 #define RX_ACK_NOSPACE 5 /* No buffer space at all */
690 #define RX_ACK_PING 6 /* This is a keep-alive ack */
691 #define RX_ACK_PING_RESPONSE 7 /* Ack'ing because we were pinged */
692 #define RX_ACK_DELAY 8 /* Ack generated since nothing has happened since receiving packet */
693 #define RX_ACK_IDLE 9 /* Similar to RX_ACK_DELAY, but can
696 /* Packet acknowledgement type */
697 #define RX_ACK_TYPE_NACK 0 /* I Don't have this packet */
698 #define RX_ACK_TYPE_ACK 1 /* I have this packet, although I may discard it later */
700 /* The packet size transmitted for an acknowledge is adjusted to reflect the actual size of the acks array. This macro defines the size */
701 #define rx_AckDataSize(nAcks) (sizeof(struct rx_ackPacket) - RX_MAXACKS + (nAcks))
703 #define RX_CHALLENGE_TIMEOUT 2 /* Number of seconds before another authentication request packet is generated */
705 /* RX error codes. RX uses error codes from -1 to -64. Rxgen may use other error codes < -64; user programs are expected to return positive error codes */
707 /* Something bad happened to the connection; temporary loss of communication */
708 #define RX_CALL_DEAD (-1)
710 /* An invalid operation, such as a client attempting to send data after having received the beginning of a reply from the server */
711 #define RX_INVALID_OPERATION (-2)
713 /* An optional timeout per call may be specified */
714 #define RX_CALL_TIMEOUT (-3)
716 /* End of data on a read */
719 /* Some sort of low-level protocol error */
720 #define RX_PROTOCOL_ERROR (-5)
722 /* Generic user abort code; used when no more specific error code needs to be communicated. For example, multi rx clients use this code to abort a multi rx call */
723 #define RX_USER_ABORT (-6)
725 /* Port already in use (from rx_Init) */
726 #define RX_ADDRINUSE (-7)
728 /* EMSGSIZE returned from network. Packet too big, must fragment */
729 #define RX_MSGSIZE (-8)
731 /* transient failure detected ( possibly the server is restarting ) */
732 /* this shud be equal to VRESTARTING ( util/errors.h ) for old clients to work */
733 #define RX_RESTARTING (-100)
735 /* Structure for keeping rx statistics. Note that this structure is returned
736 * by rxdebug, so, for compatibility reasons, new fields should be appended (or
737 * spares used), the rxdebug protocol checked, if necessary, and the PrintStats
738 * code should be updated as well.
740 * Clearly we assume that ntohl will work on these structures so sizeof(int)
741 * must equal sizeof(afs_int32). */
743 struct rx_stats { /* General rx statistics */
744 int packetRequests; /* Number of packet allocation requests */
745 int receivePktAllocFailures;
746 int sendPktAllocFailures;
747 int specialPktAllocFailures;
748 int socketGreedy; /* Whether SO_GREEDY succeeded */
749 int bogusPacketOnRead; /* Number of inappropriately short packets received */
750 int bogusHost; /* Host address from bogus packets */
751 int noPacketOnRead; /* Number of read packets attempted when there was actually no packet to read off the wire */
752 int noPacketBuffersOnRead; /* Number of dropped data packets due to lack of packet buffers */
753 int selects; /* Number of selects waiting for packet or timeout */
754 int sendSelects; /* Number of selects forced when sending packet */
755 int packetsRead[RX_N_PACKET_TYPES]; /* Total number of packets read, per type */
756 int dataPacketsRead; /* Number of unique data packets read off the wire */
757 int ackPacketsRead; /* Number of ack packets read */
758 int dupPacketsRead; /* Number of duplicate data packets read */
759 int spuriousPacketsRead;/* Number of inappropriate data packets */
760 int packetsSent[RX_N_PACKET_TYPES]; /* Number of rxi_Sends: packets sent over the wire, per type */
761 int ackPacketsSent; /* Number of acks sent */
762 int pingPacketsSent; /* Total number of ping packets sent */
763 int abortPacketsSent; /* Total number of aborts */
764 int busyPacketsSent; /* Total number of busies sent received */
765 int dataPacketsSent; /* Number of unique data packets sent */
766 int dataPacketsReSent; /* Number of retransmissions */
767 int dataPacketsPushed; /* Number of retransmissions pushed early by a NACK */
768 int ignoreAckedPacket; /* Number of packets with acked flag, on rxi_Start */
769 struct clock totalRtt; /* Total round trip time measured (use to compute average) */
770 struct clock minRtt; /* Minimum round trip time measured */
771 struct clock maxRtt; /* Maximum round trip time measured */
772 int nRttSamples; /* Total number of round trip samples */
773 int nServerConns; /* Total number of server connections */
774 int nClientConns; /* Total number of client connections */
775 int nPeerStructs; /* Total number of peer structures */
776 int nCallStructs; /* Total number of call structures allocated */
777 int nFreeCallStructs; /* Total number of previously allocated free call structures */
779 afs_int32 fatalErrors;
780 int ignorePacketDally; /* packets dropped because call is in dally state */
781 int receiveCbufPktAllocFailures;
782 int sendCbufPktAllocFailures;
786 /* structures for debug input and output packets */
788 /* debug input types */
794 /* Invalid rx debug package type */
795 #define RX_DEBUGI_BADTYPE (-8)
797 #define RX_DEBUGI_VERSION_MINIMUM ('L') /* earliest real version */
798 #define RX_DEBUGI_VERSION ('Q') /* Latest version */
799 /* first version w/ secStats */
800 #define RX_DEBUGI_VERSION_W_SECSTATS ('L')
801 /* version M is first supporting GETALLCONN and RXSTATS type */
802 #define RX_DEBUGI_VERSION_W_GETALLCONN ('M')
803 #define RX_DEBUGI_VERSION_W_RXSTATS ('M')
804 /* last version with unaligned debugConn */
805 #define RX_DEBUGI_VERSION_W_UNALIGNED_CONN ('L')
806 #define RX_DEBUGI_VERSION_W_WAITERS ('N')
807 #define RX_DEBUGI_VERSION_W_IDLETHREADS ('O')
808 #define RX_DEBUGI_VERSION_W_NEWPACKETTYPES ('P')
809 #define RX_DEBUGI_VERSION_W_GETPEER ('Q')
811 #define RX_DEBUGI_GETSTATS 1 /* get basic rx stats */
812 #define RX_DEBUGI_GETCONN 2 /* get connection info */
813 #define RX_DEBUGI_GETALLCONN 3 /* get even uninteresting conns */
814 #define RX_DEBUGI_RXSTATS 4 /* get all rx stats */
815 #define RX_DEBUGI_GETPEER 5 /* get all peer structs */
817 struct rx_debugStats {
818 afs_int32 nFreePackets;
819 afs_int32 packetReclaims;
820 afs_int32 callsExecuted;
821 char waitingForPackets;
826 afs_int32 idleThreads; /* Number of server threads that are idle */
830 struct rx_debugConn_vL {
834 afs_int32 callNumber[RX_MAXCALLS];
840 char callState[RX_MAXCALLS];
841 char callMode[RX_MAXCALLS];
842 char callFlags[RX_MAXCALLS];
843 char callOther[RX_MAXCALLS];
844 /* old style getconn stops here */
845 struct rx_securityObjectStats secStats;
846 afs_int32 sparel[10];
849 struct rx_debugConn {
853 afs_int32 callNumber[RX_MAXCALLS];
859 char sparec[3]; /* force correct alignment */
860 char callState[RX_MAXCALLS];
861 char callMode[RX_MAXCALLS];
862 char callFlags[RX_MAXCALLS];
863 char callOther[RX_MAXCALLS];
864 /* old style getconn stops here */
865 struct rx_securityObjectStats secStats;
871 struct rx_debugPeer {
879 struct clock burstWait;
882 struct clock timeout;
885 afs_int32 inPacketSkew;
886 afs_int32 outPacketSkew;
890 u_short maxDgramPackets;
891 u_short ifDgramPackets;
894 u_short nDgramPackets;
896 afs_hyper_t bytesSent;
897 afs_hyper_t bytesReceived;
898 afs_int32 sparel[10];
901 #define RX_OTHER_IN 1 /* packets avail in in queue */
902 #define RX_OTHER_OUT 2 /* packets avail in out queue */
906 /* Only include this once, even when re-loading for kdump. */
907 #ifndef _CALL_REF_DEFINED_
908 #define _CALL_REF_DEFINED_
910 #ifdef RX_ENABLE_LOCKS
911 #ifdef RX_REFCOUNT_CHECK
912 /* RX_REFCOUNT_CHECK is used to test for call refcount leaks by event
915 extern int rx_callHoldType;
916 #define CALL_HOLD(call, type) do { \
918 call->refCDebug[type]++; \
919 if (call->refCDebug[type] > 50) {\
920 rx_callHoldType = type; \
921 osi_Panic("Huge call refCount"); \
924 #define CALL_RELE(call, type) do { \
926 call->refCDebug[type]--; \
927 if (call->refCDebug[type] > 50) {\
928 rx_callHoldType = type; \
929 osi_Panic("Negative call refCount"); \
932 #else /* RX_REFCOUNT_CHECK */
933 #define CALL_HOLD(call, type) call->refCount++
934 #define CALL_RELE(call, type) call->refCount--
935 #endif /* RX_REFCOUNT_CHECK */
937 #else /* RX_ENABLE_LOCKS */
938 #define CALL_HOLD(call, type)
939 #define CALL_RELE(call, type)
940 #endif /* RX_ENABLE_LOCKS */
942 #endif /* _CALL_REF_DEFINED_ */
944 struct rx_connection *rx_GetCachedConnection(
945 unsigned int remoteAddr,
947 unsigned short service,
948 struct rx_securityClass *securityObject,
952 void rx_ReleaseCachedConnection(
953 struct rx_connection *conn
956 #define RX_SERVER_DEBUG_SEC_STATS 0x1
957 #define RX_SERVER_DEBUG_ALL_CONN 0x2
958 #define RX_SERVER_DEBUG_RX_STATS 0x4
959 #define RX_SERVER_DEBUG_WAITER_CNT 0x8
960 #define RX_SERVER_DEBUG_IDLE_THREADS 0x10
961 #define RX_SERVER_DEBUG_OLD_CONN 0x20
962 #define RX_SERVER_DEBUG_NEW_PACKETS 0x40
963 #define RX_SERVER_DEBUG_ALL_PEER 0x80
965 afs_int32 rx_GetServerDebug(
967 afs_uint32 remoteAddr,
968 afs_uint16 remotePort,
969 struct rx_debugStats *stat,
970 afs_uint32 *supportedValues
973 afs_int32 rx_GetServerStats(
975 afs_uint32 remoteAddr,
976 afs_uint16 remotePort,
977 struct rx_stats *stat,
978 afs_uint32 *supportedValues
981 afs_int32 rx_GetServerVersion(
983 afs_uint32 remoteAddr,
984 afs_uint16 remotePort,
985 size_t version_length,
989 afs_int32 rx_GetServerConnections(
991 afs_uint32 remoteAddr,
992 afs_uint16 remotePort,
993 afs_int32 *nextConnection,
995 afs_uint32 debugSupportedValues,
996 struct rx_debugConn *conn,
997 afs_uint32 *supportedValues
1000 afs_int32 rx_GetServerPeers(
1002 afs_uint32 remoteAddr,
1003 afs_uint16 remotePort,
1004 afs_int32 *nextPeer,
1005 afs_uint32 debugSupportedValues,
1006 struct rx_debugPeer *peer,
1007 afs_uint32 *supportedValues
1010 #define AFS_RX_STATS_CLEAR_ALL 0xffffffff
1011 #define AFS_RX_STATS_CLEAR_INVOCATIONS 0x1
1012 #define AFS_RX_STATS_CLEAR_BYTES_SENT 0x2
1013 #define AFS_RX_STATS_CLEAR_BYTES_RCVD 0x4
1014 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SUM 0x8
1015 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SQUARE 0x10
1016 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MIN 0x20
1017 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MAX 0x40
1018 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SUM 0x80
1019 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SQUARE 0x100
1020 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MIN 0x200
1021 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MAX 0x400
1023 typedef struct rx_function_entry_v1 {
1024 afs_uint32 remote_peer;
1025 afs_uint32 remote_port;
1026 afs_uint32 remote_is_server;
1027 afs_uint32 interfaceId;
1028 afs_uint32 func_total;
1029 afs_uint32 func_index;
1030 afs_hyper_t invocations;
1031 afs_hyper_t bytes_sent;
1032 afs_hyper_t bytes_rcvd;
1033 struct clock queue_time_sum;
1034 struct clock queue_time_sum_sqr;
1035 struct clock queue_time_min;
1036 struct clock queue_time_max;
1037 struct clock execution_time_sum;
1038 struct clock execution_time_sum_sqr;
1039 struct clock execution_time_min;
1040 struct clock execution_time_max;
1041 } rx_function_entry_v1_t, *rx_function_entry_v1_p;
1044 * If you need to change rx_function_entry, you should probably create a brand
1045 * new structure. Keeping the old structure will allow backwards compatibility
1046 * with old clients (even if it is only used to calculate allocation size).
1047 * If you do change the size or the format, you'll need to bump
1048 * RX_STATS_RETRIEVAL_VERSION. This allows some primitive form
1049 * of versioning a la rxdebug.
1052 #define RX_STATS_RETRIEVAL_VERSION 1 /* latest version */
1053 #define RX_STATS_RETRIEVAL_FIRST_EDITION 1 /* first implementation */
1055 typedef struct rx_interface_stat {
1056 struct rx_queue queue_header;
1057 struct rx_queue all_peers;
1058 rx_function_entry_v1_t stats[1]; /* make sure this is aligned correctly */
1059 } rx_interface_stat_t, *rx_interface_stat_p;
1061 void rx_IncrementTimeAndCount(
1062 struct rx_peer *peer,
1063 afs_uint32 rxInterface,
1064 afs_uint32 currentFunc,
1065 afs_uint32 totalFunc,
1066 struct clock *queueTime,
1067 struct clock *execTime,
1068 afs_hyper_t *bytesSent,
1069 afs_hyper_t *bytesRcvd,
1073 int rx_RetrieveProcessRPCStats(
1074 afs_uint32 callerVersion,
1075 afs_uint32 *myVersion,
1076 afs_uint32 *clock_sec,
1077 afs_uint32 *clock_usec,
1079 afs_uint32 *statCount,
1083 int rx_RetrievePeerRPCStats(
1084 afs_uint32 callerVersion,
1085 afs_uint32 *myVersion,
1086 afs_uint32 *clock_sec,
1087 afs_uint32 *clock_usec,
1089 afs_uint32 *statCount,
1093 void rx_FreeRPCStats(
1098 int rx_queryProcessRPCStats();
1100 int rx_queryPeerRPCStats();
1102 void rx_enableProcessRPCStats();
1104 void rx_enablePeerRPCStats();
1106 void rx_disableProcessRPCStats();
1108 void rx_disablePeerRPCStats();
1110 void rx_clearProcessRPCStats(
1111 afs_uint32 clearFlag
1114 void rx_clearPeerRPCStats(
1115 afs_uint32 clearFlag
1118 void rx_SetRxStatUserOk(
1119 int (*proc)(struct rx_call *call)
1122 int rx_RxStatUserOk(
1123 struct rx_call *call
1127 #define RX_STATS_SERVICE_ID 409
1129 #endif /* _RX_ End of rx.h */
1131 #endif /* !KDUMP_RX_LOCK */