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.
27 #include "rx_kmutex.h"
28 #include "rx_kernel.h"
32 #include "rx_packet.h"
35 #if defined (AFS_OBSD_ENV) && !defined (MLEN)
38 #include "netinet/in.h"
39 #include "sys/socket.h"
41 # include <sys/types.h>
44 #ifdef AFS_PTHREAD_ENV
45 # include "rx_pthread.h"
55 # include "rx_clock.h"
56 # include "rx_event.h"
57 # include "rx_packet.h"
60 # include "rx_multi.h"
62 # include <netinet/in.h>
63 # include <sys/socket.h>
68 /* Configurable parameters */
69 #define RX_IDLE_DEAD_TIME 60 /* default idle dead time */
70 #define RX_MAX_SERVICES 20 /* Maximum number of services that may be installed */
71 #if defined(KERNEL) && defined(AFS_AIX51_ENV) && defined(__64__)
72 #define RX_DEFAULT_STACK_SIZE 24000
74 #define RX_DEFAULT_STACK_SIZE 16000 /* Default process stack size; overriden by rx_SetStackSize */
77 /* This parameter should not normally be changed */
78 #define RX_PROCESS_PRIORITY LWP_NORMAL_PRIORITY
80 /* backoff is fixed point binary. Ie, units of 1/4 seconds */
81 #define MAXBACKOFF 0x1F
83 #define ADDRSPERSITE 16
86 /* Bottom n-bits of the Call Identifier give the call number */
87 #define RX_MAXCALLS 4 /* Power of 2; max async calls per connection */
88 #define RX_CIDSHIFT 2 /* Log2(RX_MAXCALLS) */
89 #define RX_CHANNELMASK (RX_MAXCALLS-1)
90 #define RX_CIDMASK (~RX_CHANNELMASK)
91 #endif /* !KDUMP_RX_LOCK */
94 typedef void (*rx_destructor_t) (void *);
95 int rx_KeyCreate(rx_destructor_t);
96 osi_socket rxi_GetHostUDPSocket(u_int host, u_short port);
97 osi_socket rxi_GetUDPSocket(u_short port);
101 int ntoh_syserr_conv(int error);
104 #define RX_DONTWAIT 0
106 #define rx_ConnectionOf(call) ((call)->conn)
107 #define rx_PeerOf(conn) ((conn)->peer)
108 #define rx_HostOf(peer) ((peer)->host)
109 #define rx_PortOf(peer) ((peer)->port)
110 #define rx_SetLocalStatus(call, status) ((call)->localStatus = (status))
111 #define rx_GetLocalStatus(call, status) ((call)->localStatus)
112 #define rx_GetRemoteStatus(call) ((call)->remoteStatus)
113 #define rx_Error(call) ((call)->error)
114 #define rx_IsServerConn(conn) ((conn)->type == RX_SERVER_CONNECTION)
115 #define rx_IsClientConn(conn) ((conn)->type == RX_CLIENT_CONNECTION)
116 /* Don't use these; use the IsServerConn style */
117 #define rx_ServerConn(conn) ((conn)->type == RX_SERVER_CONNECTION)
118 #define rx_ClientConn(conn) ((conn)->type == RX_CLIENT_CONNECTION)
119 #define rx_IsUsingPktCksum(conn) ((conn)->flags & RX_CONN_USING_PACKET_CKSUM)
120 #define rx_IsClonedConn(conn) ((conn)->flags & RX_CLONED_CONNECTION)
121 #define rx_ServiceIdOf(conn) ((conn)->serviceId)
122 #define rx_SecurityClassOf(conn) ((conn)->securityIndex)
123 #define rx_SecurityObjectOf(conn) ((conn)->securityObject)
124 #define rx_ConnError(conn) (rx_IsClonedConn((conn)) ? (conn)->parent->error : (conn)->error)
125 #define rx_SetConnError(conn, err) (rx_IsClonedConn((conn)) ? ((conn)->parent->error = err): ((conn)->error = err))
126 #define rx_ConnHardDeadTime(conn) (rx_IsClonedConn((conn)) ? (conn)->parent->hardDeadTime : (conn)->hardDeadTime)
127 #define rx_ConnIdleDeadTime(conn) (rx_IsClonedConn((conn)) ? (conn)->parent->idleDeadTime : (conn)->idleDeadTime)
128 #define rx_ConnIdleDeadErr(conn) (rx_IsClonedConn((conn)) ? (conn)->parent->idleDeadErr : (conn)->idleDeadErr)
129 #define rx_ConnSecondsUntilDead(conn) (rx_IsClonedConn((conn)) ? (conn)->parent->secondsUntilDead : (conn)->secondsUntilDead)
130 #define rx_ConnSecondsUntilPing(conn) (rx_IsClonedConn((conn)) ? (conn)->parent->secondsUntilPing : (conn)->secondsUntilPing)
134 * Macros callable by the user to further define attributes of a
135 * service. Must be called before rx_StartServer
138 /* Set the service stack size. This currently just sets the stack
139 * size for all processes to be the maximum seen, so far */
140 #define rx_SetStackSize(service, stackSize) \
141 rx_stackSize = (((stackSize) > rx_stackSize)? stackSize: rx_stackSize)
143 /* Set minimum number of processes guaranteed to be available for this
144 * service at all times */
145 #define rx_SetMinProcs(service, min) ((service)->minProcs = (min))
147 /* Set maximum number of processes that will be made available to this
148 * service (also a guarantee that this number will be made available
149 * if there is no competition) */
150 #define rx_SetMaxProcs(service, max) ((service)->maxProcs = (max))
152 /* Define a procedure to be called just before a server connection is destroyed */
153 #define rx_SetDestroyConnProc(service,proc) ((service)->destroyConnProc = (proc))
155 /* Define procedure to set service dead time */
156 #define rx_SetIdleDeadTime(service,time) ((service)->idleDeadTime = (time))
158 /* Define error to return in server connections when failing to answer */
159 #define rx_SetServerIdleDeadErr(service,err) ((service)->idleDeadErr = (err))
161 /* Define procedures for getting and setting before and after execute-request procs */
162 #define rx_SetAfterProc(service,proc) ((service)->afterProc = (proc))
163 #define rx_SetBeforeProc(service,proc) ((service)->beforeProc = (proc))
164 #define rx_GetAfterProc(service) ((service)->afterProc)
165 #define rx_GetBeforeProc(service) ((service)->beforeProc)
167 /* Define a procedure to be called when a server connection is created */
168 #define rx_SetNewConnProc(service, proc) ((service)->newConnProc = (proc))
170 /* NOTE: We'll probably redefine the following three routines, again, sometime. */
172 /* Set the connection dead time for any connections created for this service (server only) */
173 #define rx_SetServiceDeadTime(service, seconds) ((service)->secondsUntilDead = (seconds))
175 /* Enable or disable asymmetric client checking for a service */
176 #define rx_SetCheckReach(service, x) ((service)->checkReach = (x))
178 /* Set connection hard and idle timeouts for a connection */
179 #define rx_SetConnHardDeadTime(conn, seconds)\
181 if (rx_IsClonedConn(conn)) \
182 (conn)->parent->hardDeadTime = (seconds); \
184 (conn)->hardDeadTime = (seconds); \
187 #define rx_SetConnIdleDeadTime(conn, seconds)\
189 if (rx_IsClonedConn(conn)) \
190 (conn)->parent->idleDeadTime = (seconds); \
192 (conn)->idleDeadTime = (seconds); \
195 #define rx_SetServerConnIdleDeadErr(conn, err)\
197 if (rx_IsClonedConn(conn)) \
198 (conn)->parent->idleDeadErr = (err); \
200 (conn)->idleDeadErr = (err); \
204 /* Set the overload threshold and the overload error */
205 #define rx_SetBusyThreshold(threshold, code) (rx_BusyThreshold=(threshold),rx_BusyError=(code))
207 /* If this flag is set,no new requests are processed by rx, all new requests are
208 returned with an error code of RX_CALL_DEAD ( transient error ) */
209 #define rx_SetRxTranquil() (rx_tranquil = 1)
210 #define rx_ClearRxTranquil() (rx_tranquil = 0)
212 /* Set the threshold and time to delay aborts for consecutive errors */
213 #define rx_SetCallAbortThreshold(A) (rxi_callAbortThreshhold = (A))
214 #define rx_SetCallAbortDelay(A) (rxi_callAbortDelay = (A))
215 #define rx_SetConnAbortThreshold(A) (rxi_connAbortThreshhold = (A))
216 #define rx_SetConnAbortDelay(A) (rxi_connAbortDelay = (A))
218 #define rx_GetCallAbortCode(call) ((call)->abortCode)
219 #define rx_SetCallAbortCode(call, code) ((call)->abortCode = (code))
221 #define cpspace(call) ((call)->curlen)
222 #define cppos(call) ((call)->curpos)
224 #define rx_Read(call, buf, nbytes) rx_ReadProc(call, buf, nbytes)
225 #define rx_Read32(call, value) rx_ReadProc32(call, value)
226 #define rx_Readv(call, iov, nio, maxio, nbytes) \
227 rx_ReadvProc(call, iov, nio, maxio, nbytes)
228 #define rx_Write(call, buf, nbytes) rx_WriteProc(call, buf, nbytes)
229 #define rx_Write32(call, value) rx_WriteProc32(call, value)
230 #define rx_Writev(call, iov, nio, nbytes) \
231 rx_WritevProc(call, iov, nio, nbytes)
233 /* This is the maximum size data packet that can be sent on this connection, accounting for security module-specific overheads. */
234 #define rx_MaxUserDataSize(call) ((call)->MTU - RX_HEADER_SIZE - (call)->conn->securityHeaderSize - (call)->conn->securityMaxTrailerSize)
236 /* Macros to turn the hot thread feature on and off. Enabling hot threads
237 * allows the listener thread to trade places with an idle worker thread,
238 * which moves the context switch from listener to worker out of the
241 #define rx_EnableHotThread() (rx_enable_hot_thread = 1)
242 #define rx_DisableHotThread() (rx_enable_hot_thread = 0)
244 /* Macros to set max connection clones (each allows RX_MAXCALLS
245 * outstanding calls */
247 #define rx_SetMaxCalls(v) \
249 rx_SetCloneMax(v/4); \
252 #define rx_SetCloneMax(v) \
254 if(v < RX_HARD_MAX_CLONES) \
255 rx_max_clones_per_connection = v; \
258 typedef afs_int32 rx_atomic_t;
260 #define rx_PutConnection(conn) rx_DestroyConnection(conn)
262 /* A connection is an authenticated communication path, allowing
263 limited multiple asynchronous conversations. */
265 struct rx_connection_rx_lock {
266 struct rx_connection_rx_lock *next; /* on hash chain _or_ free list */
267 struct rx_peer_rx_lock *peer;
269 struct rx_connection {
270 struct rx_connection *next; /* on hash chain _or_ free list */
271 struct rx_peer *peer;
273 #ifdef RX_ENABLE_LOCKS
274 afs_kmutex_t conn_call_lock; /* locks conn_call_cv */
275 afs_kcondvar_t conn_call_cv;
276 afs_kmutex_t conn_data_lock; /* locks packet data */
278 afs_uint32 epoch; /* Process start time of client side of connection */
279 afs_uint32 cid; /* Connection id (call channel is bottom bits) */
280 afs_int32 error; /* If this connection is in error, this is it */
282 struct rx_call_rx_lock *call[RX_MAXCALLS];
284 struct rx_call *call[RX_MAXCALLS];
286 afs_uint32 callNumber[RX_MAXCALLS]; /* Current call numbers */
287 afs_uint32 rwind[RX_MAXCALLS];
288 u_short twind[RX_MAXCALLS];
289 afs_uint32 serial; /* Next outgoing packet serial number */
290 afs_uint32 lastSerial; /* # of last packet received, for computing skew */
291 afs_int32 maxSerial; /* largest serial number seen on incoming packets */
292 /* afs_int32 maxPacketSize; max packet size should be per-connection since */
293 /* peer process could be restarted on us. Includes RX Header. */
294 struct rxevent *challengeEvent; /* Scheduled when the server is challenging a */
295 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
296 struct rxevent *checkReachEvent; /* Scheduled when checking reachability */
297 int abortCount; /* count of abort messages sent */
298 /* client-- to retransmit the challenge */
299 struct rx_service *service; /* used by servers only */
300 u_short serviceId; /* To stamp on requests (clients only) */
301 rx_atomic_t refCount; /* Reference count */
302 u_char flags; /* Defined below */
303 u_char type; /* Type of connection, defined below */
304 u_char secondsUntilPing; /* how often to ping for each active call */
305 u_char securityIndex; /* corresponds to the security class of the */
306 /* securityObject for this conn */
307 struct rx_securityClass *securityObject; /* Security object for this connection */
308 void *securityData; /* Private data for this conn's security class */
309 u_short securityHeaderSize; /* Length of security module's packet header data */
310 u_short securityMaxTrailerSize; /* Length of security module's packet trailer data */
312 int timeout; /* Overall timeout per call (seconds) for this conn */
313 int lastSendTime; /* Last send time for this connection */
314 u_short secondsUntilDead; /* Maximum silence from peer before RX_CALL_DEAD */
315 u_short hardDeadTime; /* hard max for call execution */
316 u_short idleDeadTime; /* max time a call can be idle (no data) */
317 u_char ackRate; /* how many packets between ack requests */
318 u_char makeCallWaiters; /* how many rx_NewCalls are waiting */
319 afs_int32 idleDeadErr;
320 int nSpecific; /* number entries in specific data */
321 void **specific; /* pointer to connection specific data */
322 struct rx_connection *parent; /* primary connection, if this is a clone */
323 struct rx_connection *next_clone; /* next in list of clones */
324 afs_uint32 nclones; /* count of clone connections (if not a clone) */
328 /* A service is installed by rx_NewService, and specifies a service type that
329 * is exported by this process. Incoming calls are stamped with the service
330 * type, and must match an installed service for the call to be accepted.
331 * Each service exported has a (port,serviceId) pair to uniquely identify it.
332 * It is also named: this is intended to allow a remote statistics gathering
333 * program to retrieve per service statistics without having to know the local
334 * service id's. Each service has a number of
337 /* security objects (instances of security classes) which implement
338 * various types of end-to-end security protocols for connections made
339 * to this service. Finally, there are two parameters controlling the
340 * number of requests which may be executed in parallel by this
341 * service: minProcs is the number of requests to this service which
342 * are guaranteed to be able to run in parallel at any time; maxProcs
343 * has two meanings: it limits the total number of requests which may
344 * execute in parallel and it also guarantees that that many requests
345 * may be handled in parallel if no other service is handling any
349 u_short serviceId; /* Service number */
350 afs_uint32 serviceHost; /* IP address for this service */
351 u_short servicePort; /* UDP port for this service */
352 char *serviceName; /* Name of the service */
353 osi_socket socket; /* socket structure or file descriptor */
354 u_short nRequestsRunning; /* Number of requests currently in progress */
355 u_short nSecurityObjects; /* Number of entries in security objects array */
356 struct rx_securityClass **securityObjects; /* Array of security class objects */
357 afs_int32(*executeRequestProc) (struct rx_call * acall); /* Routine to call when an rpc request is received */
358 void (*destroyConnProc) (struct rx_connection * tcon); /* Routine to call when a server connection is destroyed */
359 void (*newConnProc) (struct rx_connection * tcon); /* Routine to call when a server connection is created */
360 void (*beforeProc) (struct rx_call * acall); /* routine to call before a call is executed */
361 void (*afterProc) (struct rx_call * acall, afs_int32 code); /* routine to call after a call is executed */
362 u_short maxProcs; /* Maximum procs to be used for this service */
363 u_short minProcs; /* Minimum # of requests guaranteed executable simultaneously */
364 u_short connDeadTime; /* Seconds until a client of this service will be declared dead, if it is not responding */
365 u_short idleDeadTime; /* Time a server will wait for I/O to start up again */
366 u_char checkReach; /* Check for asymmetric clients? */
367 afs_int32 idleDeadErr;
370 #endif /* KDUMP_RX_LOCK */
372 /* A server puts itself on an idle queue for a service using an
373 * instance of the following structure. When a call arrives, the call
374 * structure pointer is placed in "newcall", the routine to execute to
375 * service the request is placed in executeRequestProc, and the
376 * process is woken up. The queue entry's address is used for the
377 * sleep/wakeup. If socketp is non-null, then this thread is willing
378 * to become a listener thread. A thread sets *socketp to -1 before
379 * sleeping. If *socketp is not -1 when the thread awakes, it is now
380 * the listener thread for *socketp. When socketp is non-null, tno
381 * contains the server's threadID, which is used to make decitions in GetCall.
384 struct rx_serverQueueEntry_rx_lock {
386 struct rx_serverQueueEntry {
388 struct rx_queue queueItemHeader;
390 struct rx_call_rx_lock *newcall;
392 struct rx_call *newcall;
394 #ifdef RX_ENABLE_LOCKS
403 /* A peer refers to a peer process, specified by a (host,port) pair. There may be more than one peer on a given host. */
405 struct rx_peer_rx_lock {
406 struct rx_peer_rx_lock *next; /* Next in hash conflict or free list */
409 struct rx_peer *next; /* Next in hash conflict or free list */
411 #ifdef RX_ENABLE_LOCKS
412 afs_kmutex_t peer_lock; /* Lock peer */
413 #endif /* RX_ENABLE_LOCKS */
414 afs_uint32 host; /* Remote IP address, in net byte order */
415 u_short port; /* Remote UDP port, in net byte order */
417 /* interface mtu probably used for this host - includes RX Header */
418 u_short ifMTU; /* doesn't include IP header */
420 /* For garbage collection */
421 afs_uint32 idleWhen; /* When the refcountwent to zero */
422 rx_atomic_t refCount; /* Reference count */
425 /* Congestion control parameters */
426 u_char burstSize; /* Reinitialization size for the burst parameter */
427 u_char burst; /* Number of packets that can be transmitted right now, without pausing */
428 struct clock burstWait; /* Delay until new burst is allowed */
429 struct rx_queue congestionQueue; /* Calls that are waiting for non-zero burst value */
430 int rtt; /* Round trip time, measured in milliseconds/8 */
431 int rtt_dev; /* rtt smoothed error, in milliseconds/4 */
432 struct clock timeout; /* Current retransmission delay */
433 int nSent; /* Total number of distinct data packets sent, not including retransmissions */
434 int reSends; /* Total number of retransmissions for this peer, since this structure was created */
436 /* Skew: if a packet is received N packets later than expected (based
437 * on packet serial numbers), then we define it to have a skew of N.
438 * The maximum skew values allow us to decide when a packet hasn't
439 * been received yet because it is out-of-order, as opposed to when it
440 * is likely to have been dropped. */
441 afs_uint32 inPacketSkew; /* Maximum skew on incoming packets */
442 afs_uint32 outPacketSkew; /* Peer-reported max skew on our sent packets */
443 int rateFlag; /* Flag for rate testing (-no 0yes +decrement) */
445 /* the "natural" MTU, excluding IP,UDP headers, is negotiated by the endpoints */
448 /* negotiated maximum number of packets to send in a single datagram. */
449 u_short maxDgramPackets;
450 /* local maximum number of packets to send in a single datagram. */
451 u_short ifDgramPackets;
453 * MTU, cwind, and nDgramPackets are used to initialize
454 * slow start parameters for new calls. These values are set whenever a
455 * call sends a retransmission and at the end of each call.
456 * congestSeq is incremented each time the congestion parameters are
457 * changed by a call recovering from a dropped packet. A call used
458 * MAX when updating congestion parameters if it started with the
459 * current congestion sequence number, otherwise it uses MIN.
461 u_short MTU; /* MTU for AFS 3.4a jumboGrams */
462 u_short cwind; /* congestion window */
463 u_short nDgramPackets; /* number packets per AFS 3.5 jumbogram */
464 u_short congestSeq; /* Changed when a call retransmits */
465 afs_hyper_t bytesSent; /* Number of bytes sent to this peer */
466 afs_hyper_t bytesReceived; /* Number of bytes received from this peer */
467 struct rx_queue rpcStats; /* rpc statistic list */
468 int lastReachTime; /* Last time we verified reachability */
472 #ifndef KDUMP_RX_LOCK
473 /* Flag bits for connection structure */
474 #define RX_CONN_MAKECALL_WAITING 1 /* rx_MakeCall is waiting for a channel */
475 #define RX_CONN_DESTROY_ME 2 /* Destroy *client* connection after last call */
476 #define RX_CONN_USING_PACKET_CKSUM 4 /* non-zero header.spare field seen */
477 #define RX_CONN_KNOW_WINDOW 8 /* window size negotiation works */
478 #define RX_CONN_RESET 16 /* connection is reset, remove */
479 #define RX_CONN_BUSY 32 /* connection is busy; don't delete */
480 #define RX_CONN_ATTACHWAIT 64 /* attach waiting for peer->lastReach */
481 #define RX_CLONED_CONNECTION 128 /* connection is a clone */
483 /* Type of connection, client or server */
484 #define RX_CLIENT_CONNECTION 0
485 #define RX_SERVER_CONNECTION 1
486 #endif /* !KDUMP_RX_LOCK */
488 /* 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. */
490 struct rx_call_rx_lock {
494 struct rx_queue queue_item_header; /* Call can be on various queues (one-at-a-time) */
495 struct rx_queue tq; /* Transmit packet queue */
496 struct rx_queue rq; /* Receive packet queue */
498 * The following fields are accessed while the call is unlocked.
499 * These fields are used by the caller/server thread to marshall
500 * and unmarshall RPC data. The only time they may be changed by
501 * other threads is when the RX_CALL_IOVEC_WAIT flag is set.
503 * NOTE: Be sure that these fields start and end on a double
504 * word boundary. Otherwise threads that are changing
505 * adjacent fields will cause problems.
507 struct rx_queue iovq; /* readv/writev packet queue */
508 u_short nLeft; /* Number bytes left in first receive packet */
509 u_short curvec; /* current iovec in currentPacket */
510 u_short curlen; /* bytes remaining in curvec */
511 u_short nFree; /* Number bytes free in last send packet */
512 struct rx_packet *currentPacket; /* Current packet being assembled or being read */
513 char *curpos; /* current position in curvec */
515 * End of fields accessed with call unlocked
517 u_char channel; /* Index of call, within connection */
518 u_char state; /* Current call state as defined below */
519 u_char mode; /* Current mode of a call in ACTIVE state */
520 #ifdef RX_ENABLE_LOCKS
521 afs_kmutex_t lock; /* lock covers data as well as mutexes. */
522 afs_kmutex_t *call_queue_lock; /* points to lock for queue we're on,
524 afs_kcondvar_t cv_twind;
525 afs_kcondvar_t cv_rq;
526 afs_kcondvar_t cv_tq;
529 struct rx_connection_rx_lock *conn; /* Parent connection for call */
531 struct rx_connection *conn; /* Parent connection for this call */
533 afs_uint32 *callNumber; /* Pointer to call number field within connection */
534 afs_uint32 flags; /* Some random flags */
535 u_char localStatus; /* Local user status sent out of band */
536 u_char remoteStatus; /* Remote user status received out of band */
537 afs_int32 error; /* Error condition for this call */
538 afs_uint32 timeout; /* High level timeout for this call */
539 afs_uint32 rnext; /* Next sequence number expected to be read by rx_ReadData */
540 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 */
541 afs_uint32 rwind; /* The receive window: the peer must not send packets with sequence numbers >= rnext+rwind */
542 afs_uint32 tfirst; /* First unacknowledged transmit packet number */
543 afs_uint32 tnext; /* Next transmit sequence number to use */
544 u_short twind; /* The transmit window: we cannot assign a sequence number to a packet >= tfirst + twind */
545 u_short cwind; /* The congestion window */
546 u_short nSoftAcked; /* Number soft acked transmit packets */
547 u_short nextCwind; /* The congestion window after recovery */
548 u_short nCwindAcks; /* Number acks received at current cwind */
549 u_short ssthresh; /* The slow start threshold */
550 u_short nDgramPackets; /* Packets per AFS 3.5 jumbogram */
551 u_short nAcks; /* The number of consecutive acks */
552 u_short nNacks; /* Number packets acked that follow the
553 * first negatively acked packet */
554 u_short nSoftAcks; /* The number of delayed soft acks */
555 u_short nHardAcks; /* The number of delayed hard acks */
556 u_short congestSeq; /* Peer's congestion sequence counter */
557 struct rxevent *resendEvent; /* If this is non-Null, there is a retransmission event pending */
558 struct rxevent *timeoutEvent; /* If this is non-Null, then there is an overall timeout for this call */
559 struct rxevent *keepAliveEvent; /* Scheduled periodically in active calls to keep call alive */
560 struct rxevent *delayedAckEvent; /* Scheduled after all packets are received to send an ack if a reply or new call is not generated soon */
561 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
562 int abortCode; /* error code from last RPC */
563 int abortCount; /* number of times last error was sent */
564 u_int lastSendTime; /* Last time a packet was sent on this call */
565 u_int lastReceiveTime; /* Last time a packet was received for this call */
566 u_int lastSendData; /* Last time a nonping was sent on this call */
567 void (*arrivalProc) (struct rx_call * call, void * mh, int index); /* Procedure to call when reply is received */
568 void *arrivalProcHandle; /* Handle to pass to replyFunc */
569 int arrivalProcArg; /* Additional arg to pass to reply Proc */
570 afs_uint32 lastAcked; /* last packet "hard" acked by receiver */
571 afs_uint32 startWait; /* time server began waiting for input data/send quota */
572 struct clock traceWait; /* time server began waiting for input data/send quota */
573 struct clock traceStart; /* time the call started running */
574 u_short MTU; /* size of packets currently sending */
575 #ifdef RX_ENABLE_LOCKS
576 short refCount; /* Used to keep calls from disappearring
577 * when we get them from a queue. */
578 #endif /* RX_ENABLE_LOCKS */
579 /* Call refcount modifiers */
580 #define RX_CALL_REFCOUNT_BEGIN 0 /* GetCall/NewCall/EndCall */
581 #define RX_CALL_REFCOUNT_RESEND 1 /* resend event */
582 #define RX_CALL_REFCOUNT_DELAY 2 /* delayed ack */
583 #define RX_CALL_REFCOUNT_ALIVE 3 /* keep alive event */
584 #define RX_CALL_REFCOUNT_PACKET 4 /* waiting for packets. */
585 #define RX_CALL_REFCOUNT_SEND 5 /* rxi_Send */
586 #define RX_CALL_REFCOUNT_ACKALL 6 /* rxi_AckAll */
587 #define RX_CALL_REFCOUNT_ABORT 7 /* delayed abort */
588 #define RX_CALL_REFCOUNT_MAX 8 /* array size. */
589 #ifdef RX_REFCOUNT_CHECK
590 short refCDebug[RX_CALL_REFCOUNT_MAX];
591 #endif /* RX_REFCOUNT_CHECK */
594 * iov, iovNBytes, iovMax, and iovNext are set in rxi_ReadvProc()
595 * and adjusted by rxi_FillReadVec(). iov does not own the buffers
596 * it refers to. The buffers belong to the packets stored in iovq.
597 * Only one call to rx_ReadvProc() can be active at a time.
600 int iovNBytes; /* byte count for current iovec */
601 int iovMax; /* number elements in current iovec */
602 int iovNext; /* next entry in current iovec */
603 struct iovec *iov; /* current iovec */
605 struct clock queueTime; /* time call was queued */
606 struct clock startTime; /* time call was started */
607 afs_hyper_t bytesSent; /* Number bytes sent */
608 afs_hyper_t bytesRcvd; /* Number bytes received */
611 #ifdef RXDEBUG_PACKET
612 u_short tqc; /* packet count in tq */
613 u_short rqc; /* packet count in rq */
614 u_short iovqc; /* packet count in iovq */
617 struct rx_call_rx_lock *allNextp;
619 struct rx_call *allNextp;
625 #ifndef KDUMP_RX_LOCK
626 /* Major call states */
627 #define RX_STATE_NOTINIT 0 /* Call structure has never been initialized */
628 #define RX_STATE_PRECALL 1 /* Server-only: call is not in progress, but packets have arrived */
629 #define RX_STATE_ACTIVE 2 /* An active call; a process is dealing with this call */
630 #define RX_STATE_DALLY 3 /* Dallying after process is done with call */
631 #define RX_STATE_HOLD 4 /* Waiting for acks on reply data packets */
633 /* Call modes: the modes of a call in RX_STATE_ACTIVE state (process attached) */
634 #define RX_MODE_SENDING 1 /* Sending or ready to send */
635 #define RX_MODE_RECEIVING 2 /* Receiving or ready to receive */
636 #define RX_MODE_ERROR 3 /* Something in error for current conversation */
637 #define RX_MODE_EOF 4 /* Server has flushed (or client has read) last reply packet */
640 #define RX_CALL_READER_WAIT 1 /* Reader is waiting for next packet */
641 #define RX_CALL_WAIT_WINDOW_ALLOC 2 /* Sender is waiting for window to allocate buffers */
642 #define RX_CALL_WAIT_WINDOW_SEND 4 /* Sender is waiting for window to send buffers */
643 #define RX_CALL_WAIT_PACKETS 8 /* Sender is waiting for packet buffers */
644 #define RX_CALL_WAIT_PROC 16 /* Waiting for a process to be assigned */
645 #define RX_CALL_RECEIVE_DONE 32 /* All packets received on this call */
646 #define RX_CALL_CLEARED 64 /* Receive queue cleared in precall state */
647 #define RX_CALL_TQ_BUSY 128 /* Call's Xmit Queue is busy; don't modify */
648 #define RX_CALL_TQ_CLEARME 256 /* Need to clear this call's TQ later */
649 #define RX_CALL_TQ_SOME_ACKED 512 /* rxi_Start needs to discard ack'd packets. */
650 #define RX_CALL_TQ_WAIT 1024 /* Reader is waiting for TQ_BUSY to be reset */
651 #define RX_CALL_FAST_RECOVER 2048 /* call is doing congestion recovery */
652 #define RX_CALL_FAST_RECOVER_WAIT 4096 /* thread is waiting to start recovery */
653 #define RX_CALL_SLOW_START_OK 8192 /* receiver acks every other packet */
654 #define RX_CALL_IOVEC_WAIT 16384 /* waiting thread is using an iovec */
655 #define RX_CALL_HAVE_LAST 32768 /* Last packet has been received */
656 #define RX_CALL_NEED_START 0x10000 /* tells rxi_Start to start again */
658 /* Maximum number of acknowledgements in an acknowledge packet */
659 #define RX_MAXACKS 255
661 /* The structure of the data portion of an acknowledge packet: An acknowledge
662 * packet is in network byte order at all times. An acknowledgement is always
663 * prompted for a specific reason by a specific incoming packet. This reason
664 * is reported in "reason" and the packet's sequence number in the packet
665 * header.seq. In addition to this information, all of the current
666 * acknowledgement information about this call is placed in the packet.
667 * "FirstPacket" is the sequence number of the first packet represented in an
668 * array of bytes, "acks", containing acknowledgement information for a number
669 * of consecutive packets. All packets prior to FirstPacket are implicitly
670 * acknowledged: the sender need no longer be concerned about them. Packets
671 * from firstPacket+nAcks and on are not acknowledged. Packets in the range
672 * [firstPacket,firstPacket+nAcks) are each acknowledged explicitly. The
673 * acknowledgement may be RX_NACK if the packet is not (currently) at the
674 * receiver (it may have never been received, or received and then later
675 * dropped), or it may be RX_ACK if the packet is queued up waiting to be read
676 * by the upper level software. RX_ACK does not imply that the packet may not
677 * be dropped before it is read; it does imply that the sender should stop
678 * retransmitting the packet until notified otherwise. The field
679 * previousPacket identifies the previous packet received by the peer. This
680 * was used in a previous version of this software, and could be used in the
681 * future. The serial number in the data part of the ack packet corresponds to
682 * the serial number oof the packet which prompted the acknowledge. Any
683 * packets which are explicitly not acknowledged, and which were last
684 * transmitted with a serial number less than the provided serial number,
685 * should be retransmitted immediately. Actually, this is slightly inaccurate:
686 * packets are not necessarily received in order. When packets are habitually
687 * transmitted out of order, this is allowed for in the retransmission
688 * algorithm by introducing the notion of maximum packet skew: the degree of
689 * out-of-orderness of the packets received on the wire. This number is
690 * communicated from the receiver to the sender in ack packets. */
692 struct rx_ackPacket {
693 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. */
694 u_short maxSkew; /* Maximum difference between serial# of packet acknowledged and highest packet yet received */
695 afs_uint32 firstPacket; /* The first packet in the list of acknowledged packets */
696 afs_uint32 previousPacket; /* The previous packet number received (obsolete?) */
697 afs_uint32 serial; /* Serial number of the packet which prompted the acknowledge */
698 u_char reason; /* Reason for the acknowledge of ackPacket, defined below */
699 u_char nAcks; /* Number of acknowledgements */
700 u_char acks[RX_MAXACKS]; /* Up to RX_MAXACKS packet acknowledgements, defined below */
701 /* 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) */
704 #define FIRSTACKOFFSET 4
706 /* Reason for acknowledge message */
707 #define RX_ACK_REQUESTED 1 /* Peer requested an ack on this packet */
708 #define RX_ACK_DUPLICATE 2 /* Duplicate packet */
709 #define RX_ACK_OUT_OF_SEQUENCE 3 /* Packet out of sequence */
710 #define RX_ACK_EXCEEDS_WINDOW 4 /* Packet sequence number higher than window; discarded */
711 #define RX_ACK_NOSPACE 5 /* No buffer space at all */
712 #define RX_ACK_PING 6 /* This is a keep-alive ack */
713 #define RX_ACK_PING_RESPONSE 7 /* Ack'ing because we were pinged */
714 #define RX_ACK_DELAY 8 /* Ack generated since nothing has happened since receiving packet */
715 #define RX_ACK_IDLE 9 /* Similar to RX_ACK_DELAY, but can
716 * be used to compute RTT */
718 /* Packet acknowledgement type */
719 #define RX_ACK_TYPE_NACK 0 /* I Don't have this packet */
720 #define RX_ACK_TYPE_ACK 1 /* I have this packet, although I may discard it later */
722 /* The packet size transmitted for an acknowledge is adjusted to reflect the actual size of the acks array. This macro defines the size */
723 #define rx_AckDataSize(nAcks) (3 + nAcks + offsetof(struct rx_ackPacket, acks[0]))
725 #define RX_CHALLENGE_TIMEOUT 2 /* Number of seconds before another authentication request packet is generated */
726 #define RX_CHALLENGE_MAXTRIES 50 /* Max # of times we resend challenge */
727 #define RX_CHECKREACH_TIMEOUT 2 /* Number of seconds before another ping is generated */
728 #define RX_CHECKREACH_TTL 60 /* Re-check reachability this often */
730 /* 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 */
732 /* Something bad happened to the connection; temporary loss of communication */
733 #define RX_CALL_DEAD (-1)
735 /* An invalid operation, such as a client attempting to send data after having received the beginning of a reply from the server */
736 #define RX_INVALID_OPERATION (-2)
738 /* An optional timeout per call may be specified */
739 #define RX_CALL_TIMEOUT (-3)
741 /* End of data on a read */
744 /* Some sort of low-level protocol error */
745 #define RX_PROTOCOL_ERROR (-5)
747 /* 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 */
748 #define RX_USER_ABORT (-6)
750 /* Port already in use (from rx_Init) */
751 #define RX_ADDRINUSE (-7)
753 /* EMSGSIZE returned from network. Packet too big, must fragment */
754 #define RX_MSGSIZE (-8)
756 /* transient failure detected ( possibly the server is restarting ) */
757 /* this shud be equal to VRESTARTING ( util/errors.h ) for old clients to work */
758 #define RX_RESTARTING (-100)
760 struct rx_securityObjectStats {
761 char type; /* 0:unk 1:null,2:vab 3:kad */
763 char sparec[10]; /* force correct alignment */
764 afs_int32 flags; /* 1=>unalloc, 2=>auth, 4=>expired */
766 afs_uint32 packetsReceived;
767 afs_uint32 packetsSent;
768 afs_uint32 bytesReceived;
769 afs_uint32 bytesSent;
774 /* Configuration settings */
776 /* Enum for storing configuration variables which can be set via the
777 * SetConfiguration method in the rx_securityClass, below
781 RXS_CONFIG_FLAGS /* afs_uint32 set of bitwise flags */
782 } rx_securityConfigVariables;
784 /* For the RXS_CONFIG_FLAGS, the following bit values are defined */
786 /* Disable the principal name contains dot check in rxkad */
787 #define RXS_CONFIG_FLAGS_DISABLE_DOTCHECK 0x01
789 /* XXXX (rewrite this description) A security class object contains a set of
790 * procedures and some private data to implement a security model for rx
791 * connections. These routines are called by rx as appropriate. Rx knows
792 * nothing about the internal details of any particular security model, or
793 * about security state. Rx does maintain state per connection on behalf of
794 * the security class. Each security class implementation is also expected to
795 * provide routines to create these objects. Rx provides a basic routine to
796 * allocate one of these objects; this routine must be called by the class. */
797 struct rx_securityClass {
798 struct rx_securityOps {
799 int (*op_Close) (struct rx_securityClass * aobj);
800 int (*op_NewConnection) (struct rx_securityClass * aobj,
801 struct rx_connection * aconn);
802 int (*op_PreparePacket) (struct rx_securityClass * aobj,
803 struct rx_call * acall,
804 struct rx_packet * apacket);
805 int (*op_SendPacket) (struct rx_securityClass * aobj,
806 struct rx_call * acall,
807 struct rx_packet * apacket);
808 int (*op_CheckAuthentication) (struct rx_securityClass * aobj,
809 struct rx_connection * aconn);
810 int (*op_CreateChallenge) (struct rx_securityClass * aobj,
811 struct rx_connection * aconn);
812 int (*op_GetChallenge) (struct rx_securityClass * aobj,
813 struct rx_connection * aconn,
814 struct rx_packet * apacket);
815 int (*op_GetResponse) (struct rx_securityClass * aobj,
816 struct rx_connection * aconn,
817 struct rx_packet * apacket);
818 int (*op_CheckResponse) (struct rx_securityClass * aobj,
819 struct rx_connection * aconn,
820 struct rx_packet * apacket);
821 int (*op_CheckPacket) (struct rx_securityClass * aobj,
822 struct rx_call * acall,
823 struct rx_packet * apacket);
824 int (*op_DestroyConnection) (struct rx_securityClass * aobj,
825 struct rx_connection * aconn);
826 int (*op_GetStats) (struct rx_securityClass * aobj,
827 struct rx_connection * aconn,
828 struct rx_securityObjectStats * astats);
829 int (*op_SetConfiguration) (struct rx_securityClass * aobj,
830 struct rx_connection * aconn,
831 rx_securityConfigVariables atype,
833 void ** acurrentValue);
834 int (*op_Spare2) (void);
835 int (*op_Spare3) (void);
841 #define RXS_OP(obj,op,args) ((obj && (obj->ops->op_ ## op)) ? (*(obj)->ops->op_ ## op)args : 0)
843 #define RXS_Close(obj) RXS_OP(obj,Close,(obj))
844 #define RXS_NewConnection(obj,conn) RXS_OP(obj,NewConnection,(obj,conn))
845 #define RXS_PreparePacket(obj,call,packet) RXS_OP(obj,PreparePacket,(obj,call,packet))
846 #define RXS_SendPacket(obj,call,packet) RXS_OP(obj,SendPacket,(obj,call,packet))
847 #define RXS_CheckAuthentication(obj,conn) RXS_OP(obj,CheckAuthentication,(obj,conn))
848 #define RXS_CreateChallenge(obj,conn) RXS_OP(obj,CreateChallenge,(obj,conn))
849 #define RXS_GetChallenge(obj,conn,packet) RXS_OP(obj,GetChallenge,(obj,conn,packet))
850 #define RXS_GetResponse(obj,conn,packet) RXS_OP(obj,GetResponse,(obj,conn,packet))
851 #define RXS_CheckResponse(obj,conn,packet) RXS_OP(obj,CheckResponse,(obj,conn,packet))
852 #define RXS_CheckPacket(obj,call,packet) RXS_OP(obj,CheckPacket,(obj,call,packet))
853 #define RXS_DestroyConnection(obj,conn) RXS_OP(obj,DestroyConnection,(obj,conn))
854 #define RXS_GetStats(obj,conn,stats) RXS_OP(obj,GetStats,(obj,conn,stats))
855 #define RXS_SetConfiguration(obj, conn, type, value, currentValue) RXS_OP(obj, SetConfiguration,(obj,conn,type,value,currentValue))
858 /* Structure for keeping rx statistics. Note that this structure is returned
859 * by rxdebug, so, for compatibility reasons, new fields should be appended (or
860 * spares used), the rxdebug protocol checked, if necessary, and the PrintStats
861 * code should be updated as well.
863 * Clearly we assume that ntohl will work on these structures so sizeof(int)
864 * must equal sizeof(afs_int32). */
866 struct rx_statistics { /* General rx statistics */
867 rx_atomic_t packetRequests; /* Number of packet allocation requests */
868 rx_atomic_t receivePktAllocFailures;
869 rx_atomic_t sendPktAllocFailures;
870 rx_atomic_t specialPktAllocFailures;
871 rx_atomic_t socketGreedy; /* Whether SO_GREEDY succeeded */
872 rx_atomic_t bogusPacketOnRead; /* Number of inappropriately short packets received */
873 rx_atomic_t bogusHost; /* Host address from bogus packets */
874 rx_atomic_t noPacketOnRead; /* Number of read packets attempted when there was actually no packet to read off the wire */
875 rx_atomic_t noPacketBuffersOnRead; /* Number of dropped data packets due to lack of packet buffers */
876 rx_atomic_t selects; /* Number of selects waiting for packet or timeout */
877 rx_atomic_t sendSelects; /* Number of selects forced when sending packet */
878 rx_atomic_t packetsRead[RX_N_PACKET_TYPES]; /* Total number of packets read, per type */
879 rx_atomic_t dataPacketsRead; /* Number of unique data packets read off the wire */
880 rx_atomic_t ackPacketsRead; /* Number of ack packets read */
881 rx_atomic_t dupPacketsRead; /* Number of duplicate data packets read */
882 rx_atomic_t spuriousPacketsRead; /* Number of inappropriate data packets */
883 rx_atomic_t packetsSent[RX_N_PACKET_TYPES]; /* Number of rxi_Sends: packets sent over the wire, per type */
884 rx_atomic_t ackPacketsSent; /* Number of acks sent */
885 rx_atomic_t pingPacketsSent; /* Total number of ping packets sent */
886 rx_atomic_t abortPacketsSent; /* Total number of aborts */
887 rx_atomic_t busyPacketsSent; /* Total number of busies sent received */
888 rx_atomic_t dataPacketsSent; /* Number of unique data packets sent */
889 rx_atomic_t dataPacketsReSent; /* Number of retransmissions */
890 rx_atomic_t dataPacketsPushed; /* Number of retransmissions pushed early by a NACK */
891 rx_atomic_t ignoreAckedPacket; /* Number of packets with acked flag, on rxi_Start */
892 struct clock totalRtt; /* Total round trip time measured (use to compute average) */
893 struct clock minRtt; /* Minimum round trip time measured */
894 struct clock maxRtt; /* Maximum round trip time measured */
895 rx_atomic_t nRttSamples; /* Total number of round trip samples */
896 rx_atomic_t nServerConns; /* Total number of server connections */
897 rx_atomic_t nClientConns; /* Total number of client connections */
898 rx_atomic_t nPeerStructs; /* Total number of peer structures */
899 rx_atomic_t nCallStructs; /* Total number of call structures allocated */
900 rx_atomic_t nFreeCallStructs; /* Total number of previously allocated free call structures */
901 rx_atomic_t netSendFailures;
902 rx_atomic_t fatalErrors;
903 rx_atomic_t ignorePacketDally; /* packets dropped because call is in dally state */
904 rx_atomic_t receiveCbufPktAllocFailures;
905 rx_atomic_t sendCbufPktAllocFailures;
907 rx_atomic_t spares[4];
910 /* structures for debug input and output packets */
912 /* debug input types */
918 /* Invalid rx debug package type */
919 #define RX_DEBUGI_BADTYPE (-8)
921 #define RX_DEBUGI_VERSION_MINIMUM ('L') /* earliest real version */
922 #define RX_DEBUGI_VERSION ('S') /* Latest version */
923 /* first version w/ secStats */
924 #define RX_DEBUGI_VERSION_W_SECSTATS ('L')
925 /* version M is first supporting GETALLCONN and RXSTATS type */
926 #define RX_DEBUGI_VERSION_W_GETALLCONN ('M')
927 #define RX_DEBUGI_VERSION_W_RXSTATS ('M')
928 /* last version with unaligned debugConn */
929 #define RX_DEBUGI_VERSION_W_UNALIGNED_CONN ('L')
930 #define RX_DEBUGI_VERSION_W_WAITERS ('N')
931 #define RX_DEBUGI_VERSION_W_IDLETHREADS ('O')
932 #define RX_DEBUGI_VERSION_W_NEWPACKETTYPES ('P')
933 #define RX_DEBUGI_VERSION_W_GETPEER ('Q')
934 #define RX_DEBUGI_VERSION_W_WAITED ('R')
935 #define RX_DEBUGI_VERSION_W_PACKETS ('S')
937 #define RX_DEBUGI_GETSTATS 1 /* get basic rx stats */
938 #define RX_DEBUGI_GETCONN 2 /* get connection info */
939 #define RX_DEBUGI_GETALLCONN 3 /* get even uninteresting conns */
940 #define RX_DEBUGI_RXSTATS 4 /* get all rx stats */
941 #define RX_DEBUGI_GETPEER 5 /* get all peer structs */
943 struct rx_debugStats {
944 afs_int32 nFreePackets;
945 afs_int32 packetReclaims;
946 afs_int32 callsExecuted;
947 char waitingForPackets;
952 afs_int32 idleThreads; /* Number of server threads that are idle */
958 struct rx_debugConn_vL {
961 struct rx_debugConn_vL *parent; /* primary connection, if this is a clone */
963 afs_uint32 callNumber[RX_MAXCALLS];
968 u_char securityIndex;
969 u_char callState[RX_MAXCALLS];
970 u_char callMode[RX_MAXCALLS];
971 u_char callFlags[RX_MAXCALLS];
972 u_char callOther[RX_MAXCALLS];
973 /* old style getconn stops here */
974 struct rx_securityObjectStats secStats;
975 afs_uint32 sparel[10];
978 struct rx_debugConn {
981 struct rx_debugConn *parent; /* primary connection, if this is a clone */
983 afs_uint32 callNumber[RX_MAXCALLS];
988 u_char securityIndex;
989 u_char sparec[3]; /* force correct alignment */
990 u_char callState[RX_MAXCALLS];
991 u_char callMode[RX_MAXCALLS];
992 u_char callFlags[RX_MAXCALLS];
993 u_char callOther[RX_MAXCALLS];
994 /* old style getconn stops here */
995 struct rx_securityObjectStats secStats;
998 afs_uint32 sparel[9];
1001 struct rx_debugPeer {
1005 afs_uint32 idleWhen;
1009 struct clock burstWait;
1012 struct clock timeout;
1015 afs_int32 inPacketSkew;
1016 afs_int32 outPacketSkew;
1020 u_short maxDgramPackets;
1021 u_short ifDgramPackets;
1024 u_short nDgramPackets;
1026 afs_hyper_t bytesSent;
1027 afs_hyper_t bytesReceived;
1028 afs_int32 sparel[10];
1031 #define RX_OTHER_IN 1 /* packets avail in in queue */
1032 #define RX_OTHER_OUT 2 /* packets avail in out queue */
1036 /* Only include this once, even when re-loading for kdump. */
1037 #ifndef _CALL_REF_DEFINED_
1038 #define _CALL_REF_DEFINED_
1040 #ifdef RX_ENABLE_LOCKS
1041 #ifdef RX_REFCOUNT_CHECK
1042 /* RX_REFCOUNT_CHECK is used to test for call refcount leaks by event
1045 extern int rx_callHoldType;
1046 #define CALL_HOLD(call, type) do { \
1048 call->refCDebug[type]++; \
1049 if (call->refCDebug[type] > 50) {\
1050 rx_callHoldType = type; \
1051 osi_Panic("Huge call refCount"); \
1054 #define CALL_RELE(call, type) do { \
1056 call->refCDebug[type]--; \
1057 if (call->refCDebug[type] > 50) {\
1058 rx_callHoldType = type; \
1059 osi_Panic("Negative call refCount"); \
1062 #else /* RX_REFCOUNT_CHECK */
1063 #define CALL_HOLD(call, type) call->refCount++
1064 #define CALL_RELE(call, type) call->refCount--
1065 #endif /* RX_REFCOUNT_CHECK */
1067 #else /* RX_ENABLE_LOCKS */
1068 #define CALL_HOLD(call, type)
1069 #define CALL_RELE(call, type)
1070 #endif /* RX_ENABLE_LOCKS */
1072 #endif /* _CALL_REF_DEFINED_ */
1074 #define RX_SERVER_DEBUG_SEC_STATS 0x1
1075 #define RX_SERVER_DEBUG_ALL_CONN 0x2
1076 #define RX_SERVER_DEBUG_RX_STATS 0x4
1077 #define RX_SERVER_DEBUG_WAITER_CNT 0x8
1078 #define RX_SERVER_DEBUG_IDLE_THREADS 0x10
1079 #define RX_SERVER_DEBUG_OLD_CONN 0x20
1080 #define RX_SERVER_DEBUG_NEW_PACKETS 0x40
1081 #define RX_SERVER_DEBUG_ALL_PEER 0x80
1082 #define RX_SERVER_DEBUG_WAITED_CNT 0x100
1083 #define RX_SERVER_DEBUG_PACKETS_CNT 0x200
1085 #define AFS_RX_STATS_CLEAR_ALL 0xffffffff
1086 #define AFS_RX_STATS_CLEAR_INVOCATIONS 0x1
1087 #define AFS_RX_STATS_CLEAR_BYTES_SENT 0x2
1088 #define AFS_RX_STATS_CLEAR_BYTES_RCVD 0x4
1089 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SUM 0x8
1090 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SQUARE 0x10
1091 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MIN 0x20
1092 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MAX 0x40
1093 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SUM 0x80
1094 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SQUARE 0x100
1095 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MIN 0x200
1096 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MAX 0x400
1098 typedef struct rx_function_entry_v1 {
1099 afs_uint32 remote_peer;
1100 afs_uint32 remote_port;
1101 afs_uint32 remote_is_server;
1102 afs_uint32 interfaceId;
1103 afs_uint32 func_total;
1104 afs_uint32 func_index;
1105 afs_hyper_t invocations;
1106 afs_hyper_t bytes_sent;
1107 afs_hyper_t bytes_rcvd;
1108 struct clock queue_time_sum;
1109 struct clock queue_time_sum_sqr;
1110 struct clock queue_time_min;
1111 struct clock queue_time_max;
1112 struct clock execution_time_sum;
1113 struct clock execution_time_sum_sqr;
1114 struct clock execution_time_min;
1115 struct clock execution_time_max;
1116 } rx_function_entry_v1_t, *rx_function_entry_v1_p;
1119 * If you need to change rx_function_entry, you should probably create a brand
1120 * new structure. Keeping the old structure will allow backwards compatibility
1121 * with old clients (even if it is only used to calculate allocation size).
1122 * If you do change the size or the format, you'll need to bump
1123 * RX_STATS_RETRIEVAL_VERSION. This allows some primitive form
1124 * of versioning a la rxdebug.
1127 #define RX_STATS_RETRIEVAL_VERSION 1 /* latest version */
1128 #define RX_STATS_RETRIEVAL_FIRST_EDITION 1 /* first implementation */
1130 typedef struct rx_interface_stat {
1131 struct rx_queue queue_header;
1132 struct rx_queue all_peers;
1133 rx_function_entry_v1_t stats[1]; /* make sure this is aligned correctly */
1134 } rx_interface_stat_t, *rx_interface_stat_p;
1136 #define RX_STATS_SERVICE_ID 409
1139 extern int rx_DumpCalls(FILE *outputFile, char *cookie);
1140 #endif /* AFS_NT40_ENV */
1141 #endif /* _RX_ End of rx.h */
1144 #include "rx/rx_prototypes.h"
1146 #include "rx_prototypes.h"
1149 #endif /* !KDUMP_RX_LOCK */