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"
29 #if defined (AFS_OBSD_ENV) && !defined (MLEN)
32 #include "netinet/in.h"
33 #include "sys/socket.h"
35 # include <sys/types.h>
38 #ifdef AFS_PTHREAD_ENV
39 # include "rx_pthread.h"
50 # include <netinet/in.h>
51 # include <sys/socket.h>
57 #include "rx_packet.h"
62 /* Configurable parameters */
63 #define RX_IDLE_DEAD_TIME 60 /* default idle dead time */
64 #define RX_MAX_SERVICES 20 /* Maximum number of services that may be installed */
65 #if defined(KERNEL) && defined(AFS_AIX51_ENV) && defined(__64__)
66 #define RX_DEFAULT_STACK_SIZE 24000
68 #define RX_DEFAULT_STACK_SIZE 16000 /* Default process stack size; overriden by rx_SetStackSize */
71 /* This parameter should not normally be changed */
72 #define RX_PROCESS_PRIORITY LWP_NORMAL_PRIORITY
74 /* backoff is fixed point binary. Ie, units of 1/4 seconds */
75 #define MAXBACKOFF 0x1F
77 #define ADDRSPERSITE 16
80 /* Bottom n-bits of the Call Identifier give the call number */
81 #define RX_MAXCALLS 4 /* Power of 2; max async calls per connection */
82 #define RX_CIDSHIFT 2 /* Log2(RX_MAXCALLS) */
83 #define RX_CHANNELMASK (RX_MAXCALLS-1)
84 #define RX_CIDMASK (~RX_CHANNELMASK)
85 #endif /* !KDUMP_RX_LOCK */
88 typedef void (*rx_destructor_t) (void *);
89 int rx_KeyCreate(rx_destructor_t);
90 osi_socket rxi_GetHostUDPSocket(u_int host, u_short port);
91 osi_socket rxi_GetUDPSocket(u_short port);
95 int ntoh_syserr_conv(int error);
100 #define rx_ConnectionOf(call) ((call)->conn)
101 #define rx_PeerOf(conn) ((conn)->peer)
102 #define rx_HostOf(peer) ((peer)->host)
103 #define rx_PortOf(peer) ((peer)->port)
104 #define rx_SetLocalStatus(call, status) ((call)->localStatus = (status))
105 #define rx_GetLocalStatus(call, status) ((call)->localStatus)
106 #define rx_GetRemoteStatus(call) ((call)->remoteStatus)
107 #define rx_Error(call) ((call)->error)
108 #define rx_ConnError(conn) ((conn)->error)
109 #define rx_IsServerConn(conn) ((conn)->type == RX_SERVER_CONNECTION)
110 #define rx_IsClientConn(conn) ((conn)->type == RX_CLIENT_CONNECTION)
111 /* Don't use these; use the IsServerConn style */
112 #define rx_ServerConn(conn) ((conn)->type == RX_SERVER_CONNECTION)
113 #define rx_ClientConn(conn) ((conn)->type == RX_CLIENT_CONNECTION)
114 #define rx_IsUsingPktCksum(conn) ((conn)->flags & RX_CONN_USING_PACKET_CKSUM)
115 #define rx_ServiceIdOf(conn) ((conn)->serviceId)
116 #define rx_SecurityClassOf(conn) ((conn)->securityIndex)
117 #define rx_SecurityObjectOf(conn) ((conn)->securityObject)
120 rx_IsLoopbackAddr(afs_uint32 addr)
122 return ((addr & 0xffff0000) == 0x7f000000);
126 * Macros callable by the user to further define attributes of a
127 * service. Must be called before rx_StartServer
130 /* Set the service stack size. This currently just sets the stack
131 * size for all processes to be the maximum seen, so far */
132 #define rx_SetStackSize(service, stackSize) \
133 rx_stackSize = (((stackSize) > rx_stackSize)? stackSize: rx_stackSize)
135 /* Set minimum number of processes guaranteed to be available for this
136 * service at all times */
137 #define rx_SetMinProcs(service, min) ((service)->minProcs = (min))
139 /* Set maximum number of processes that will be made available to this
140 * service (also a guarantee that this number will be made available
141 * if there is no competition) */
142 #define rx_SetMaxProcs(service, max) ((service)->maxProcs = (max))
144 /* Define a procedure to be called just before a server connection is destroyed */
145 #define rx_SetDestroyConnProc(service,proc) ((service)->destroyConnProc = (proc))
147 /* Define procedure to set service dead time */
148 #define rx_SetIdleDeadTime(service,time) ((service)->idleDeadTime = (time))
150 /* Define error to return in server connections when failing to answer */
151 #define rx_SetServerIdleDeadErr(service,err) ((service)->idleDeadErr = (err))
153 /* Define procedures for getting and setting before and after execute-request procs */
154 #define rx_SetAfterProc(service,proc) ((service)->afterProc = (proc))
155 #define rx_SetBeforeProc(service,proc) ((service)->beforeProc = (proc))
156 #define rx_GetAfterProc(service) ((service)->afterProc)
157 #define rx_GetBeforeProc(service) ((service)->beforeProc)
159 /* Define a procedure to be called when a server connection is created */
160 #define rx_SetNewConnProc(service, proc) ((service)->newConnProc = (proc))
162 /* NOTE: We'll probably redefine the following three routines, again, sometime. */
164 /* Set the connection dead time for any connections created for this service (server only) */
165 #define rx_SetServiceDeadTime(service, seconds) ((service)->secondsUntilDead = (seconds))
167 /* Enable or disable asymmetric client checking for a service */
168 #define rx_SetCheckReach(service, x) ((service)->checkReach = (x))
170 #define rx_SetServerConnIdleDeadErr(conn,err) ((conn)->idleDeadErr = (err))
172 /* Set the overload threshold and the overload error */
173 #define rx_SetBusyThreshold(threshold, code) (rx_BusyThreshold=(threshold),rx_BusyError=(code))
175 /* Set the error to use for retrying a connection during MTU tuning */
176 #define rx_SetMsgsizeRetryErr(conn, err) ((conn)->msgsizeRetryErr = (err))
178 /* If this flag is set,no new requests are processed by rx, all new requests are
179 returned with an error code of RX_CALL_DEAD ( transient error ) */
180 #define rx_SetRxTranquil() (rx_tranquil = 1)
181 #define rx_ClearRxTranquil() (rx_tranquil = 0)
183 /* Set the threshold and time to delay aborts for consecutive errors */
184 #define rx_SetCallAbortThreshold(A) (rxi_callAbortThreshhold = (A))
185 #define rx_SetCallAbortDelay(A) (rxi_callAbortDelay = (A))
186 #define rx_SetConnAbortThreshold(A) (rxi_connAbortThreshhold = (A))
187 #define rx_SetConnAbortDelay(A) (rxi_connAbortDelay = (A))
189 #define rx_GetCallAbortCode(call) ((call)->abortCode)
190 #define rx_SetCallAbortCode(call, code) ((call)->abortCode = (code))
192 #define cpspace(call) ((call)->curlen)
193 #define cppos(call) ((call)->curpos)
195 #define rx_Read(call, buf, nbytes) rx_ReadProc(call, buf, nbytes)
196 #define rx_Read32(call, value) rx_ReadProc32(call, value)
197 #define rx_Readv(call, iov, nio, maxio, nbytes) \
198 rx_ReadvProc(call, iov, nio, maxio, nbytes)
199 #define rx_Write(call, buf, nbytes) rx_WriteProc(call, buf, nbytes)
200 #define rx_Write32(call, value) rx_WriteProc32(call, value)
201 #define rx_Writev(call, iov, nio, nbytes) \
202 rx_WritevProc(call, iov, nio, nbytes)
204 /* This is the maximum size data packet that can be sent on this connection, accounting for security module-specific overheads. */
205 #define rx_MaxUserDataSize(call) ((call)->MTU - RX_HEADER_SIZE - (call)->conn->securityHeaderSize - (call)->conn->securityMaxTrailerSize)
207 /* Macros to turn the hot thread feature on and off. Enabling hot threads
208 * allows the listener thread to trade places with an idle worker thread,
209 * which moves the context switch from listener to worker out of the
212 #define rx_EnableHotThread() (rx_enable_hot_thread = 1)
213 #define rx_DisableHotThread() (rx_enable_hot_thread = 0)
215 #define rx_PutConnection(conn) rx_DestroyConnection(conn)
217 /* A connection is an authenticated communication path, allowing
218 limited multiple asynchronous conversations. */
220 struct rx_connection_rx_lock {
221 struct rx_connection_rx_lock *next; /* on hash chain _or_ free list */
222 struct rx_peer_rx_lock *peer;
224 struct rx_connection {
225 struct rx_connection *next; /* on hash chain _or_ free list */
226 struct rx_peer *peer;
228 #ifdef RX_ENABLE_LOCKS
229 afs_kmutex_t conn_call_lock; /* locks conn_call_cv */
230 afs_kcondvar_t conn_call_cv;
231 afs_kmutex_t conn_data_lock; /* locks packet data */
233 afs_uint32 epoch; /* Process start time of client side of connection */
234 afs_uint32 cid; /* Connection id (call channel is bottom bits) */
235 afs_int32 error; /* If this connection is in error, this is it */
237 struct rx_call_rx_lock *call[RX_MAXCALLS];
239 struct rx_call *call[RX_MAXCALLS];
241 afs_uint32 callNumber[RX_MAXCALLS]; /* Current call numbers */
242 afs_uint32 rwind[RX_MAXCALLS];
243 u_short twind[RX_MAXCALLS];
244 afs_uint32 serial; /* Next outgoing packet serial number */
245 afs_uint32 lastSerial; /* # of last packet received, for computing skew */
246 afs_int32 maxSerial; /* largest serial number seen on incoming packets */
247 afs_int32 lastPacketSize; /* last >max attempt */
248 afs_int32 lastPacketSizeSeq; /* seq number of attempt */
249 afs_int32 lastPingSize; /* last MTU ping attempt */
250 afs_int32 lastPingSizeSer; /* serial of last MTU ping attempt */
251 struct rxevent *challengeEvent; /* Scheduled when the server is challenging a */
252 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
253 struct rxevent *checkReachEvent; /* Scheduled when checking reachability */
254 int abortCount; /* count of abort messages sent */
255 /* client-- to retransmit the challenge */
256 struct rx_service *service; /* used by servers only */
257 u_short serviceId; /* To stamp on requests (clients only) */
258 afs_uint32 refCount; /* Reference count (rx_refcnt_mutex) */
259 u_char flags; /* Defined below - (conn_data_lock) */
260 u_char type; /* Type of connection, defined below */
261 u_char secondsUntilPing; /* how often to ping for each active call */
262 u_char securityIndex; /* corresponds to the security class of the */
263 /* securityObject for this conn */
264 struct rx_securityClass *securityObject; /* Security object for this connection */
265 void *securityData; /* Private data for this conn's security class */
266 u_short securityHeaderSize; /* Length of security module's packet header data */
267 u_short securityMaxTrailerSize; /* Length of security module's packet trailer data */
269 int timeout; /* Overall timeout per call (seconds) for this conn */
270 int lastSendTime; /* Last send time for this connection */
271 u_short secondsUntilDead; /* Maximum silence from peer before RX_CALL_DEAD */
272 u_short hardDeadTime; /* hard max for call execution */
273 u_short idleDeadTime; /* max time a call can be idle (no data) */
274 u_char ackRate; /* how many packets between ack requests */
275 u_char makeCallWaiters; /* how many rx_NewCalls are waiting */
276 afs_int32 idleDeadErr;
277 afs_int32 secondsUntilNatPing; /* how often to ping conn */
278 struct rxevent *natKeepAliveEvent; /* Scheduled to keep connection open */
279 afs_int32 msgsizeRetryErr;
280 int nSpecific; /* number entries in specific data */
281 void **specific; /* pointer to connection specific data */
285 /* A service is installed by rx_NewService, and specifies a service type that
286 * is exported by this process. Incoming calls are stamped with the service
287 * type, and must match an installed service for the call to be accepted.
288 * Each service exported has a (port,serviceId) pair to uniquely identify it.
289 * It is also named: this is intended to allow a remote statistics gathering
290 * program to retrieve per service statistics without having to know the local
291 * service id's. Each service has a number of
294 /* security objects (instances of security classes) which implement
295 * various types of end-to-end security protocols for connections made
296 * to this service. Finally, there are two parameters controlling the
297 * number of requests which may be executed in parallel by this
298 * service: minProcs is the number of requests to this service which
299 * are guaranteed to be able to run in parallel at any time; maxProcs
300 * has two meanings: it limits the total number of requests which may
301 * execute in parallel and it also guarantees that that many requests
302 * may be handled in parallel if no other service is handling any
306 u_short serviceId; /* Service number */
307 afs_uint32 serviceHost; /* IP address for this service */
308 u_short servicePort; /* UDP port for this service */
309 char *serviceName; /* Name of the service */
310 osi_socket socket; /* socket structure or file descriptor */
311 u_short nRequestsRunning; /* Number of requests currently in progress */
312 u_short nSecurityObjects; /* Number of entries in security objects array */
313 struct rx_securityClass **securityObjects; /* Array of security class objects */
314 afs_int32(*executeRequestProc) (struct rx_call * acall); /* Routine to call when an rpc request is received */
315 void (*destroyConnProc) (struct rx_connection * tcon); /* Routine to call when a server connection is destroyed */
316 void (*newConnProc) (struct rx_connection * tcon); /* Routine to call when a server connection is created */
317 void (*beforeProc) (struct rx_call * acall); /* routine to call before a call is executed */
318 void (*afterProc) (struct rx_call * acall, afs_int32 code); /* routine to call after a call is executed */
319 u_short maxProcs; /* Maximum procs to be used for this service */
320 u_short minProcs; /* Minimum # of requests guaranteed executable simultaneously */
321 u_short connDeadTime; /* Seconds until a client of this service will be declared dead, if it is not responding */
322 u_short idleDeadTime; /* Time a server will wait for I/O to start up again */
323 u_char checkReach; /* Check for asymmetric clients? */
324 afs_int32 idleDeadErr;
325 int nSpecific; /* number entries in specific data */
326 void **specific; /* pointer to connection specific data */
327 #ifdef RX_ENABLE_LOCKS
328 afs_kmutex_t svc_data_lock; /* protect specific data */
333 #endif /* KDUMP_RX_LOCK */
335 /* A server puts itself on an idle queue for a service using an
336 * instance of the following structure. When a call arrives, the call
337 * structure pointer is placed in "newcall", the routine to execute to
338 * service the request is placed in executeRequestProc, and the
339 * process is woken up. The queue entry's address is used for the
340 * sleep/wakeup. If socketp is non-null, then this thread is willing
341 * to become a listener thread. A thread sets *socketp to -1 before
342 * sleeping. If *socketp is not -1 when the thread awakes, it is now
343 * the listener thread for *socketp. When socketp is non-null, tno
344 * contains the server's threadID, which is used to make decitions in GetCall.
347 struct rx_serverQueueEntry_rx_lock {
349 struct rx_serverQueueEntry {
351 struct rx_queue queueItemHeader;
353 struct rx_call_rx_lock *newcall;
355 struct rx_call *newcall;
357 #ifdef RX_ENABLE_LOCKS
366 /* A peer refers to a peer process, specified by a (host,port) pair. There may be more than one peer on a given host. */
368 struct rx_peer_rx_lock {
369 struct rx_peer_rx_lock *next; /* Next in hash conflict or free list */
372 struct rx_peer *next; /* Next in hash conflict or free list */
374 #ifdef RX_ENABLE_LOCKS
375 afs_kmutex_t peer_lock; /* Lock peer */
376 #endif /* RX_ENABLE_LOCKS */
377 afs_uint32 host; /* Remote IP address, in net byte order */
378 u_short port; /* Remote UDP port, in net byte order */
380 /* interface mtu probably used for this host - includes RX Header */
381 u_short ifMTU; /* doesn't include IP header */
383 /* For garbage collection */
384 afs_uint32 idleWhen; /* When the refcountwent to zero */
385 afs_uint32 refCount; /* Reference count for this structure (rx_peerHashTable_lock) */
387 /* Congestion control parameters */
388 u_char burstSize; /* Reinitialization size for the burst parameter */
389 u_char burst; /* Number of packets that can be transmitted right now, without pausing */
390 struct clock burstWait; /* Delay until new burst is allowed */
391 struct rx_queue congestionQueue; /* Calls that are waiting for non-zero burst value */
392 int rtt; /* Smoothed round trip time, measured in milliseconds/8 */
393 int rtt_dev; /* Smoothed rtt mean difference, in milliseconds/4 */
394 struct clock timeout; /* Current retransmission delay */
395 int backedOff; /* Has the timeout been backed off due to a missing packet? */
396 int nSent; /* Total number of distinct data packets sent, not including retransmissions */
397 int reSends; /* Total number of retransmissions for this peer, since this structure was created */
399 /* Skew: if a packet is received N packets later than expected (based
400 * on packet serial numbers), then we define it to have a skew of N.
401 * The maximum skew values allow us to decide when a packet hasn't
402 * been received yet because it is out-of-order, as opposed to when it
403 * is likely to have been dropped. */
404 afs_uint32 inPacketSkew; /* Maximum skew on incoming packets */
405 afs_uint32 outPacketSkew; /* Peer-reported max skew on our sent packets */
406 int rateFlag; /* Flag for rate testing (-no 0yes +decrement) */
408 /* the "natural" MTU, excluding IP,UDP headers, is negotiated by the endpoints */
411 /* negotiated maximum number of packets to send in a single datagram. */
412 u_short maxDgramPackets;
413 /* local maximum number of packets to send in a single datagram. */
414 u_short ifDgramPackets;
416 * MTU, cwind, and nDgramPackets are used to initialize
417 * slow start parameters for new calls. These values are set whenever a
418 * call sends a retransmission and at the end of each call.
419 * congestSeq is incremented each time the congestion parameters are
420 * changed by a call recovering from a dropped packet. A call used
421 * MAX when updating congestion parameters if it started with the
422 * current congestion sequence number, otherwise it uses MIN.
424 u_short MTU; /* MTU for AFS 3.4a jumboGrams */
425 u_short cwind; /* congestion window */
426 u_short nDgramPackets; /* number packets per AFS 3.5 jumbogram */
427 u_short congestSeq; /* Changed when a call retransmits */
428 afs_hyper_t bytesSent; /* Number of bytes sent to this peer */
429 afs_hyper_t bytesReceived; /* Number of bytes received from this peer */
430 struct rx_queue rpcStats; /* rpc statistic list */
431 int lastReachTime; /* Last time we verified reachability */
432 afs_int32 maxPacketSize; /* peer packetsize hint */
440 #ifndef KDUMP_RX_LOCK
441 /* Flag bits for connection structure */
442 #define RX_CONN_MAKECALL_WAITING 1 /* rx_NewCall is waiting for a channel */
443 #define RX_CONN_DESTROY_ME 2 /* Destroy *client* connection after last call */
444 #define RX_CONN_USING_PACKET_CKSUM 4 /* non-zero header.spare field seen */
445 #define RX_CONN_KNOW_WINDOW 8 /* window size negotiation works */
446 #define RX_CONN_RESET 16 /* connection is reset, remove */
447 #define RX_CONN_BUSY 32 /* connection is busy; don't delete */
448 #define RX_CONN_ATTACHWAIT 64 /* attach waiting for peer->lastReach */
449 #define RX_CONN_MAKECALL_ACTIVE 128 /* a thread is actively in rx_NewCall */
451 /* Type of connection, client or server */
452 #define RX_CLIENT_CONNECTION 0
453 #define RX_SERVER_CONNECTION 1
454 #endif /* !KDUMP_RX_LOCK */
456 /* Maximum number of acknowledgements in an acknowledge packet */
457 #define RX_MAXACKS 255
459 /* 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. */
461 struct rx_call_rx_lock {
465 struct rx_queue queue_item_header; /* Call can be on various queues (one-at-a-time) */
466 struct rx_queue tq; /* Transmit packet queue */
467 struct rx_queue rq; /* Receive packet queue */
469 * The following fields are accessed while the call is unlocked.
470 * These fields are used by the caller/server thread to marshall
471 * and unmarshall RPC data. The only time they may be changed by
472 * other threads is when the RX_CALL_IOVEC_WAIT flag is set.
474 * NOTE: Be sure that these fields start and end on a double
475 * word boundary. Otherwise threads that are changing
476 * adjacent fields will cause problems.
478 struct rx_queue iovq; /* readv/writev packet queue */
479 u_short nLeft; /* Number bytes left in first receive packet */
480 u_short curvec; /* current iovec in currentPacket */
481 u_short curlen; /* bytes remaining in curvec */
482 u_short nFree; /* Number bytes free in last send packet */
483 struct rx_packet *currentPacket; /* Current packet being assembled or being read */
484 char *curpos; /* current position in curvec */
486 * End of fields accessed with call unlocked
488 u_char channel; /* Index of call, within connection */
489 u_char state; /* Current call state as defined below */
490 u_char mode; /* Current mode of a call in ACTIVE state */
491 #ifdef RX_ENABLE_LOCKS
492 afs_kmutex_t lock; /* lock covers data as well as mutexes. */
493 afs_kmutex_t *call_queue_lock; /* points to lock for queue we're on,
495 afs_kcondvar_t cv_twind;
496 afs_kcondvar_t cv_rq;
497 afs_kcondvar_t cv_tq;
500 struct rx_connection_rx_lock *conn; /* Parent connection for call */
502 struct rx_connection *conn; /* Parent connection for this call */
504 afs_uint32 *callNumber; /* Pointer to call number field within connection */
505 afs_uint32 flags; /* Some random flags */
506 u_char localStatus; /* Local user status sent out of band */
507 u_char remoteStatus; /* Remote user status received out of band */
508 afs_int32 error; /* Error condition for this call */
509 afs_uint32 timeout; /* High level timeout for this call */
510 afs_uint32 rnext; /* Next sequence number expected to be read by rx_ReadData */
511 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 */
512 afs_uint32 rwind; /* The receive window: the peer must not send packets with sequence numbers >= rnext+rwind */
513 afs_uint32 tfirst; /* First unacknowledged transmit packet number */
514 afs_uint32 tnext; /* Next transmit sequence number to use */
515 afs_uint32 tprev; /* Last packet that we saw an ack for */
516 u_short twind; /* The transmit window: we cannot assign a sequence number to a packet >= tfirst + twind */
517 u_short cwind; /* The congestion window */
518 u_short nSoftAcked; /* Number soft acked transmit packets */
519 u_short nextCwind; /* The congestion window after recovery */
520 u_short nCwindAcks; /* Number acks received at current cwind */
521 u_short ssthresh; /* The slow start threshold */
522 u_short nDgramPackets; /* Packets per AFS 3.5 jumbogram */
523 u_short nAcks; /* The number of consecutive acks */
524 u_short nNacks; /* Number packets acked that follow the
525 * first negatively acked packet */
526 u_short nSoftAcks; /* The number of delayed soft acks */
527 u_short nHardAcks; /* The number of delayed hard acks */
528 u_short congestSeq; /* Peer's congestion sequence counter */
529 struct rxevent *resendEvent; /* If this is non-Null, there is a retransmission event pending */
530 struct rxevent *timeoutEvent; /* If this is non-Null, then there is an overall timeout for this call */
531 struct rxevent *keepAliveEvent; /* Scheduled periodically in active calls to keep call alive */
532 struct rxevent *growMTUEvent; /* Scheduled periodically in active calls to discover true maximum MTU */
533 struct rxevent *delayedAckEvent; /* Scheduled after all packets are received to send an ack if a reply or new call is not generated soon */
534 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
535 int abortCode; /* error code from last RPC */
536 int abortCount; /* number of times last error was sent */
537 u_int lastSendTime; /* Last time a packet was sent on this call */
538 u_int lastReceiveTime; /* Last time a packet was received for this call */
539 u_int lastSendData; /* Last time a nonping was sent on this call */
540 void (*arrivalProc) (struct rx_call * call, void * mh, int index); /* Procedure to call when reply is received */
541 void *arrivalProcHandle; /* Handle to pass to replyFunc */
542 int arrivalProcArg; /* Additional arg to pass to reply Proc */
543 afs_uint32 lastAcked; /* last packet "hard" acked by receiver */
544 afs_uint32 startWait; /* time server began waiting for input data/send quota */
545 struct clock traceWait; /* time server began waiting for input data/send quota */
546 struct clock traceStart; /* time the call started running */
547 u_short MTU; /* size of packets currently sending */
548 #ifdef RX_ENABLE_LOCKS
549 short refCount; /* Used to keep calls from disappearring
550 * when we get them from a queue. (rx_refcnt_lock) */
551 #endif /* RX_ENABLE_LOCKS */
552 /* Call refcount modifiers */
553 #define RX_CALL_REFCOUNT_BEGIN 0 /* GetCall/NewCall/EndCall */
554 #define RX_CALL_REFCOUNT_RESEND 1 /* resend event */
555 #define RX_CALL_REFCOUNT_DELAY 2 /* delayed ack */
556 #define RX_CALL_REFCOUNT_ALIVE 3 /* keep alive event */
557 #define RX_CALL_REFCOUNT_PACKET 4 /* waiting for packets. */
558 #define RX_CALL_REFCOUNT_SEND 5 /* rxi_Send */
559 #define RX_CALL_REFCOUNT_ACKALL 6 /* rxi_AckAll */
560 #define RX_CALL_REFCOUNT_ABORT 7 /* delayed abort */
561 #define RX_CALL_REFCOUNT_MAX 8 /* array size. */
562 #ifdef RX_REFCOUNT_CHECK
563 short refCDebug[RX_CALL_REFCOUNT_MAX];
564 #endif /* RX_REFCOUNT_CHECK */
567 * iov, iovNBytes, iovMax, and iovNext are set in rxi_ReadvProc()
568 * and adjusted by rxi_FillReadVec(). iov does not own the buffers
569 * it refers to. The buffers belong to the packets stored in iovq.
570 * Only one call to rx_ReadvProc() can be active at a time.
573 int iovNBytes; /* byte count for current iovec */
574 int iovMax; /* number elements in current iovec */
575 int iovNext; /* next entry in current iovec */
576 struct iovec *iov; /* current iovec */
578 struct clock queueTime; /* time call was queued */
579 struct clock startTime; /* time call was started */
580 afs_hyper_t bytesSent; /* Number bytes sent */
581 afs_hyper_t bytesRcvd; /* Number bytes received */
584 struct rx_packet *xmitList[RX_MAXACKS]; /* Can't xmit more than we ack */
585 /* Protected by setting RX_CALL_TQ_BUSY */
587 struct clock pingRequestTime;
589 #ifdef RXDEBUG_PACKET
590 u_short tqc; /* packet count in tq */
591 u_short rqc; /* packet count in rq */
592 u_short iovqc; /* packet count in iovq */
595 struct rx_call_rx_lock *allNextp;
597 struct rx_call *allNextp;
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 */
610 #define RX_STATE_RESET 5 /* Call is being reset */
612 /* Call modes: the modes of a call in RX_STATE_ACTIVE state (process attached) */
613 #define RX_MODE_SENDING 1 /* Sending or ready to send */
614 #define RX_MODE_RECEIVING 2 /* Receiving or ready to receive */
615 #define RX_MODE_ERROR 3 /* Something in error for current conversation */
616 #define RX_MODE_EOF 4 /* Server has flushed (or client has read) last reply packet */
619 #define RX_CALL_READER_WAIT 1 /* Reader is waiting for next packet */
620 #define RX_CALL_WAIT_WINDOW_ALLOC 2 /* Sender is waiting for window to allocate buffers */
621 #define RX_CALL_WAIT_WINDOW_SEND 4 /* Sender is waiting for window to send buffers */
622 #define RX_CALL_WAIT_PACKETS 8 /* Sender is waiting for packet buffers */
623 #define RX_CALL_WAIT_PROC 16 /* Waiting for a process to be assigned */
624 #define RX_CALL_RECEIVE_DONE 32 /* All packets received on this call */
625 #define RX_CALL_CLEARED 64 /* Receive queue cleared in precall state */
626 #define RX_CALL_TQ_BUSY 128 /* Call's Xmit Queue is busy; don't modify */
627 #define RX_CALL_TQ_CLEARME 256 /* Need to clear this call's TQ later */
628 #define RX_CALL_TQ_SOME_ACKED 512 /* rxi_Start needs to discard ack'd packets. */
629 #define RX_CALL_TQ_WAIT 1024 /* Reader is waiting for TQ_BUSY to be reset */
630 #define RX_CALL_FAST_RECOVER 2048 /* call is doing congestion recovery */
631 #define RX_CALL_FAST_RECOVER_WAIT 4096 /* thread is waiting to start recovery */
632 #define RX_CALL_SLOW_START_OK 8192 /* receiver acks every other packet */
633 #define RX_CALL_IOVEC_WAIT 16384 /* waiting thread is using an iovec */
634 #define RX_CALL_HAVE_LAST 32768 /* Last packet has been received */
635 #define RX_CALL_NEED_START 0x10000 /* tells rxi_Start to start again */
638 /* The structure of the data portion of an acknowledge packet: An acknowledge
639 * packet is in network byte order at all times. An acknowledgement is always
640 * prompted for a specific reason by a specific incoming packet. This reason
641 * is reported in "reason" and the packet's sequence number in the packet
642 * header.seq. In addition to this information, all of the current
643 * acknowledgement information about this call is placed in the packet.
644 * "FirstPacket" is the sequence number of the first packet represented in an
645 * array of bytes, "acks", containing acknowledgement information for a number
646 * of consecutive packets. All packets prior to FirstPacket are implicitly
647 * acknowledged: the sender need no longer be concerned about them. Packets
648 * from firstPacket+nAcks and on are not acknowledged. Packets in the range
649 * [firstPacket,firstPacket+nAcks) are each acknowledged explicitly. The
650 * acknowledgement may be RX_NACK if the packet is not (currently) at the
651 * receiver (it may have never been received, or received and then later
652 * dropped), or it may be RX_ACK if the packet is queued up waiting to be read
653 * by the upper level software. RX_ACK does not imply that the packet may not
654 * be dropped before it is read; it does imply that the sender should stop
655 * retransmitting the packet until notified otherwise. The field
656 * previousPacket identifies the previous packet received by the peer. This
657 * was used in a previous version of this software, and could be used in the
658 * future. The serial number in the data part of the ack packet corresponds to
659 * the serial number oof the packet which prompted the acknowledge. Any
660 * packets which are explicitly not acknowledged, and which were last
661 * transmitted with a serial number less than the provided serial number,
662 * should be retransmitted immediately. Actually, this is slightly inaccurate:
663 * packets are not necessarily received in order. When packets are habitually
664 * transmitted out of order, this is allowed for in the retransmission
665 * algorithm by introducing the notion of maximum packet skew: the degree of
666 * out-of-orderness of the packets received on the wire. This number is
667 * communicated from the receiver to the sender in ack packets. */
669 struct rx_ackPacket {
670 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. */
671 u_short maxSkew; /* Maximum difference between serial# of packet acknowledged and highest packet yet received */
672 afs_uint32 firstPacket; /* The first packet in the list of acknowledged packets */
673 afs_uint32 previousPacket; /* The previous packet number received (obsolete?) */
674 afs_uint32 serial; /* Serial number of the packet which prompted the acknowledge */
675 u_char reason; /* Reason for the acknowledge of ackPacket, defined below */
676 u_char nAcks; /* Number of acknowledgements */
677 u_char acks[RX_MAXACKS]; /* Up to RX_MAXACKS packet acknowledgements, defined below */
678 /* 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) */
681 #define FIRSTACKOFFSET 4
683 /* Reason for acknowledge message */
684 #define RX_ACK_REQUESTED 1 /* Peer requested an ack on this packet */
685 #define RX_ACK_DUPLICATE 2 /* Duplicate packet */
686 #define RX_ACK_OUT_OF_SEQUENCE 3 /* Packet out of sequence */
687 #define RX_ACK_EXCEEDS_WINDOW 4 /* Packet sequence number higher than window; discarded */
688 #define RX_ACK_NOSPACE 5 /* No buffer space at all */
689 #define RX_ACK_PING 6 /* This is a keep-alive ack */
690 #define RX_ACK_PING_RESPONSE 7 /* Ack'ing because we were pinged */
691 #define RX_ACK_DELAY 8 /* Ack generated since nothing has happened since receiving packet */
692 #define RX_ACK_IDLE 9 /* Similar to RX_ACK_DELAY, but can
693 * be used to compute RTT */
694 #define RX_ACK_MTU -1 /* will be rewritten to ACK_PING */
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) (3 + nAcks + offsetof(struct rx_ackPacket, acks[0]))
703 #define RX_CHALLENGE_TIMEOUT 2 /* Number of seconds before another authentication request packet is generated */
704 #define RX_CHALLENGE_MAXTRIES 50 /* Max # of times we resend challenge */
705 #define RX_CHECKREACH_TIMEOUT 2 /* Number of seconds before another ping is generated */
706 #define RX_CHECKREACH_TTL 60 /* Re-check reachability this often */
708 /* 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 */
710 /* Something bad happened to the connection; temporary loss of communication */
711 #define RX_CALL_DEAD (-1)
713 /* An invalid operation, such as a client attempting to send data after having received the beginning of a reply from the server */
714 #define RX_INVALID_OPERATION (-2)
716 /* An optional timeout per call may be specified */
717 #define RX_CALL_TIMEOUT (-3)
719 /* End of data on a read */
722 /* Some sort of low-level protocol error */
723 #define RX_PROTOCOL_ERROR (-5)
725 /* 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 */
726 #define RX_USER_ABORT (-6)
728 /* Port already in use (from rx_Init) */
729 #define RX_ADDRINUSE (-7)
731 /* EMSGSIZE returned from network. Packet too big, must fragment */
732 #define RX_MSGSIZE (-8)
734 /* transient failure detected ( possibly the server is restarting ) */
735 /* this shud be equal to VRESTARTING ( util/errors.h ) for old clients to work */
736 #define RX_RESTARTING (-100)
745 struct rx_securityObjectStats {
746 char type; /* 0:unk 1:null,2:vab 3:kad */
748 char sparec[10]; /* force correct alignment */
749 afs_int32 flags; /* 1=>unalloc, 2=>auth, 4=>expired */
751 afs_uint32 packetsReceived;
752 afs_uint32 packetsSent;
753 afs_uint32 bytesReceived;
754 afs_uint32 bytesSent;
759 /* Configuration settings */
761 /* Enum for storing configuration variables which can be set via the
762 * SetConfiguration method in the rx_securityClass, below
766 RXS_CONFIG_FLAGS /* afs_uint32 set of bitwise flags */
767 } rx_securityConfigVariables;
769 /* For the RXS_CONFIG_FLAGS, the following bit values are defined */
771 /* Disable the principal name contains dot check in rxkad */
772 #define RXS_CONFIG_FLAGS_DISABLE_DOTCHECK 0x01
774 /* XXXX (rewrite this description) A security class object contains a set of
775 * procedures and some private data to implement a security model for rx
776 * connections. These routines are called by rx as appropriate. Rx knows
777 * nothing about the internal details of any particular security model, or
778 * about security state. Rx does maintain state per connection on behalf of
779 * the security class. Each security class implementation is also expected to
780 * provide routines to create these objects. Rx provides a basic routine to
781 * allocate one of these objects; this routine must be called by the class. */
782 struct rx_securityClass {
783 struct rx_securityOps {
784 int (*op_Close) (struct rx_securityClass * aobj);
785 int (*op_NewConnection) (struct rx_securityClass * aobj,
786 struct rx_connection * aconn);
787 int (*op_PreparePacket) (struct rx_securityClass * aobj,
788 struct rx_call * acall,
789 struct rx_packet * apacket);
790 int (*op_SendPacket) (struct rx_securityClass * aobj,
791 struct rx_call * acall,
792 struct rx_packet * apacket);
793 int (*op_CheckAuthentication) (struct rx_securityClass * aobj,
794 struct rx_connection * aconn);
795 int (*op_CreateChallenge) (struct rx_securityClass * aobj,
796 struct rx_connection * aconn);
797 int (*op_GetChallenge) (struct rx_securityClass * aobj,
798 struct rx_connection * aconn,
799 struct rx_packet * apacket);
800 int (*op_GetResponse) (struct rx_securityClass * aobj,
801 struct rx_connection * aconn,
802 struct rx_packet * apacket);
803 int (*op_CheckResponse) (struct rx_securityClass * aobj,
804 struct rx_connection * aconn,
805 struct rx_packet * apacket);
806 int (*op_CheckPacket) (struct rx_securityClass * aobj,
807 struct rx_call * acall,
808 struct rx_packet * apacket);
809 int (*op_DestroyConnection) (struct rx_securityClass * aobj,
810 struct rx_connection * aconn);
811 int (*op_GetStats) (struct rx_securityClass * aobj,
812 struct rx_connection * aconn,
813 struct rx_securityObjectStats * astats);
814 int (*op_SetConfiguration) (struct rx_securityClass * aobj,
815 struct rx_connection * aconn,
816 rx_securityConfigVariables atype,
818 void ** acurrentValue);
819 int (*op_Spare2) (void);
820 int (*op_Spare3) (void);
826 #define RXS_OP(obj,op,args) ((obj && (obj->ops->op_ ## op)) ? (*(obj)->ops->op_ ## op)args : 0)
828 #define RXS_Close(obj) RXS_OP(obj,Close,(obj))
829 #define RXS_NewConnection(obj,conn) RXS_OP(obj,NewConnection,(obj,conn))
830 #define RXS_PreparePacket(obj,call,packet) RXS_OP(obj,PreparePacket,(obj,call,packet))
831 #define RXS_SendPacket(obj,call,packet) RXS_OP(obj,SendPacket,(obj,call,packet))
832 #define RXS_CheckAuthentication(obj,conn) RXS_OP(obj,CheckAuthentication,(obj,conn))
833 #define RXS_CreateChallenge(obj,conn) RXS_OP(obj,CreateChallenge,(obj,conn))
834 #define RXS_GetChallenge(obj,conn,packet) RXS_OP(obj,GetChallenge,(obj,conn,packet))
835 #define RXS_GetResponse(obj,conn,packet) RXS_OP(obj,GetResponse,(obj,conn,packet))
836 #define RXS_CheckResponse(obj,conn,packet) RXS_OP(obj,CheckResponse,(obj,conn,packet))
837 #define RXS_CheckPacket(obj,call,packet) RXS_OP(obj,CheckPacket,(obj,call,packet))
838 #define RXS_DestroyConnection(obj,conn) RXS_OP(obj,DestroyConnection,(obj,conn))
839 #define RXS_GetStats(obj,conn,stats) RXS_OP(obj,GetStats,(obj,conn,stats))
840 #define RXS_SetConfiguration(obj, conn, type, value, currentValue) RXS_OP(obj, SetConfiguration,(obj,conn,type,value,currentValue))
843 /* Structure for keeping rx statistics. Note that this structure is returned
844 * by rxdebug, so, for compatibility reasons, new fields should be appended (or
845 * spares used), the rxdebug protocol checked, if necessary, and the PrintStats
846 * code should be updated as well.
848 * Clearly we assume that ntohl will work on these structures so sizeof(int)
849 * must equal sizeof(afs_int32). */
851 struct rx_statistics { /* General rx statistics */
852 int packetRequests; /* Number of packet allocation requests */
853 int receivePktAllocFailures;
854 int sendPktAllocFailures;
855 int specialPktAllocFailures;
856 int socketGreedy; /* Whether SO_GREEDY succeeded */
857 int bogusPacketOnRead; /* Number of inappropriately short packets received */
858 int bogusHost; /* Host address from bogus packets */
859 int noPacketOnRead; /* Number of read packets attempted when there was actually no packet to read off the wire */
860 int noPacketBuffersOnRead; /* Number of dropped data packets due to lack of packet buffers */
861 int selects; /* Number of selects waiting for packet or timeout */
862 int sendSelects; /* Number of selects forced when sending packet */
863 int packetsRead[RX_N_PACKET_TYPES]; /* Total number of packets read, per type */
864 int dataPacketsRead; /* Number of unique data packets read off the wire */
865 int ackPacketsRead; /* Number of ack packets read */
866 int dupPacketsRead; /* Number of duplicate data packets read */
867 int spuriousPacketsRead; /* Number of inappropriate data packets */
868 int packetsSent[RX_N_PACKET_TYPES]; /* Number of rxi_Sends: packets sent over the wire, per type */
869 int ackPacketsSent; /* Number of acks sent */
870 int pingPacketsSent; /* Total number of ping packets sent */
871 int abortPacketsSent; /* Total number of aborts */
872 int busyPacketsSent; /* Total number of busies sent received */
873 int dataPacketsSent; /* Number of unique data packets sent */
874 int dataPacketsReSent; /* Number of retransmissions */
875 int dataPacketsPushed; /* Number of retransmissions pushed early by a NACK */
876 int ignoreAckedPacket; /* Number of packets with acked flag, on rxi_Start */
877 struct clock totalRtt; /* Total round trip time measured (use to compute average) */
878 struct clock minRtt; /* Minimum round trip time measured */
879 struct clock maxRtt; /* Maximum round trip time measured */
880 int nRttSamples; /* Total number of round trip samples */
881 int nServerConns; /* Total number of server connections */
882 int nClientConns; /* Total number of client connections */
883 int nPeerStructs; /* Total number of peer structures */
884 int nCallStructs; /* Total number of call structures allocated */
885 int nFreeCallStructs; /* Total number of previously allocated free call structures */
887 afs_int32 fatalErrors;
888 int ignorePacketDally; /* packets dropped because call is in dally state */
889 int receiveCbufPktAllocFailures;
890 int sendCbufPktAllocFailures;
895 /* structures for debug input and output packets */
897 /* debug input types */
903 /* Invalid rx debug package type */
904 #define RX_DEBUGI_BADTYPE (-8)
906 #define RX_DEBUGI_VERSION_MINIMUM ('L') /* earliest real version */
907 #define RX_DEBUGI_VERSION ('S') /* Latest version */
908 /* first version w/ secStats */
909 #define RX_DEBUGI_VERSION_W_SECSTATS ('L')
910 /* version M is first supporting GETALLCONN and RXSTATS type */
911 #define RX_DEBUGI_VERSION_W_GETALLCONN ('M')
912 #define RX_DEBUGI_VERSION_W_RXSTATS ('M')
913 /* last version with unaligned debugConn */
914 #define RX_DEBUGI_VERSION_W_UNALIGNED_CONN ('L')
915 #define RX_DEBUGI_VERSION_W_WAITERS ('N')
916 #define RX_DEBUGI_VERSION_W_IDLETHREADS ('O')
917 #define RX_DEBUGI_VERSION_W_NEWPACKETTYPES ('P')
918 #define RX_DEBUGI_VERSION_W_GETPEER ('Q')
919 #define RX_DEBUGI_VERSION_W_WAITED ('R')
920 #define RX_DEBUGI_VERSION_W_PACKETS ('S')
922 #define RX_DEBUGI_GETSTATS 1 /* get basic rx stats */
923 #define RX_DEBUGI_GETCONN 2 /* get connection info */
924 #define RX_DEBUGI_GETALLCONN 3 /* get even uninteresting conns */
925 #define RX_DEBUGI_RXSTATS 4 /* get all rx stats */
926 #define RX_DEBUGI_GETPEER 5 /* get all peer structs */
928 struct rx_debugStats {
929 afs_int32 nFreePackets;
930 afs_int32 packetReclaims;
931 afs_int32 callsExecuted;
932 char waitingForPackets;
937 afs_int32 idleThreads; /* Number of server threads that are idle */
943 struct rx_debugConn_vL {
947 afs_int32 callNumber[RX_MAXCALLS];
953 char callState[RX_MAXCALLS];
954 char callMode[RX_MAXCALLS];
955 char callFlags[RX_MAXCALLS];
956 char callOther[RX_MAXCALLS];
957 /* old style getconn stops here */
958 struct rx_securityObjectStats secStats;
959 afs_int32 sparel[10];
962 struct rx_debugConn {
966 afs_int32 callNumber[RX_MAXCALLS];
972 char sparec[3]; /* force correct alignment */
973 char callState[RX_MAXCALLS];
974 char callMode[RX_MAXCALLS];
975 char callFlags[RX_MAXCALLS];
976 char callOther[RX_MAXCALLS];
977 /* old style getconn stops here */
978 struct rx_securityObjectStats secStats;
984 struct rx_debugPeer {
992 struct clock burstWait;
995 struct clock timeout;
998 afs_int32 inPacketSkew;
999 afs_int32 outPacketSkew;
1003 u_short maxDgramPackets;
1004 u_short ifDgramPackets;
1007 u_short nDgramPackets;
1009 afs_hyper_t bytesSent;
1010 afs_hyper_t bytesReceived;
1011 afs_int32 sparel[10];
1014 #define RX_OTHER_IN 1 /* packets avail in in queue */
1015 #define RX_OTHER_OUT 2 /* packets avail in out queue */
1019 /* Only include this once, even when re-loading for kdump. */
1020 #ifndef _CALL_REF_DEFINED_
1021 #define _CALL_REF_DEFINED_
1023 #ifdef RX_ENABLE_LOCKS
1024 #ifdef RX_REFCOUNT_CHECK
1025 /* RX_REFCOUNT_CHECK is used to test for call refcount leaks by event
1028 extern int rx_callHoldType;
1029 #define CALL_HOLD(call, type) do { \
1031 call->refCDebug[type]++; \
1032 if (call->refCDebug[type] > 50) {\
1033 rx_callHoldType = type; \
1034 osi_Panic("Huge call refCount"); \
1037 #define CALL_RELE(call, type) do { \
1039 call->refCDebug[type]--; \
1040 if (call->refCDebug[type] > 50) {\
1041 rx_callHoldType = type; \
1042 osi_Panic("Negative call refCount"); \
1045 #else /* RX_REFCOUNT_CHECK */
1046 #define CALL_HOLD(call, type) call->refCount++
1047 #define CALL_RELE(call, type) call->refCount--
1048 #endif /* RX_REFCOUNT_CHECK */
1050 #else /* RX_ENABLE_LOCKS */
1051 #define CALL_HOLD(call, type)
1052 #define CALL_RELE(call, type)
1053 #endif /* RX_ENABLE_LOCKS */
1055 #endif /* _CALL_REF_DEFINED_ */
1057 #define RX_SERVER_DEBUG_SEC_STATS 0x1
1058 #define RX_SERVER_DEBUG_ALL_CONN 0x2
1059 #define RX_SERVER_DEBUG_RX_STATS 0x4
1060 #define RX_SERVER_DEBUG_WAITER_CNT 0x8
1061 #define RX_SERVER_DEBUG_IDLE_THREADS 0x10
1062 #define RX_SERVER_DEBUG_OLD_CONN 0x20
1063 #define RX_SERVER_DEBUG_NEW_PACKETS 0x40
1064 #define RX_SERVER_DEBUG_ALL_PEER 0x80
1065 #define RX_SERVER_DEBUG_WAITED_CNT 0x100
1066 #define RX_SERVER_DEBUG_PACKETS_CNT 0x200
1068 #define AFS_RX_STATS_CLEAR_ALL 0xffffffff
1069 #define AFS_RX_STATS_CLEAR_INVOCATIONS 0x1
1070 #define AFS_RX_STATS_CLEAR_BYTES_SENT 0x2
1071 #define AFS_RX_STATS_CLEAR_BYTES_RCVD 0x4
1072 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SUM 0x8
1073 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SQUARE 0x10
1074 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MIN 0x20
1075 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MAX 0x40
1076 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SUM 0x80
1077 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SQUARE 0x100
1078 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MIN 0x200
1079 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MAX 0x400
1081 typedef struct rx_function_entry_v1 {
1082 afs_uint32 remote_peer;
1083 afs_uint32 remote_port;
1084 afs_uint32 remote_is_server;
1085 afs_uint32 interfaceId;
1086 afs_uint32 func_total;
1087 afs_uint32 func_index;
1088 afs_hyper_t invocations;
1089 afs_hyper_t bytes_sent;
1090 afs_hyper_t bytes_rcvd;
1091 struct clock queue_time_sum;
1092 struct clock queue_time_sum_sqr;
1093 struct clock queue_time_min;
1094 struct clock queue_time_max;
1095 struct clock execution_time_sum;
1096 struct clock execution_time_sum_sqr;
1097 struct clock execution_time_min;
1098 struct clock execution_time_max;
1099 } rx_function_entry_v1_t, *rx_function_entry_v1_p;
1102 * If you need to change rx_function_entry, you should probably create a brand
1103 * new structure. Keeping the old structure will allow backwards compatibility
1104 * with old clients (even if it is only used to calculate allocation size).
1105 * If you do change the size or the format, you'll need to bump
1106 * RX_STATS_RETRIEVAL_VERSION. This allows some primitive form
1107 * of versioning a la rxdebug.
1110 #define RX_STATS_RETRIEVAL_VERSION 1 /* latest version */
1111 #define RX_STATS_RETRIEVAL_FIRST_EDITION 1 /* first implementation */
1113 typedef struct rx_interface_stat {
1114 struct rx_queue queue_header;
1115 struct rx_queue all_peers;
1116 rx_function_entry_v1_t stats[1]; /* make sure this is aligned correctly */
1117 } rx_interface_stat_t, *rx_interface_stat_p;
1119 #define RX_STATS_SERVICE_ID 409
1122 extern int rx_DumpCalls(FILE *outputFile, char *cookie);
1125 #endif /* _RX_ End of rx.h */
1128 #include "rx/rx_prototypes.h"
1130 #include "rx_prototypes.h"
1133 #endif /* !KDUMP_RX_LOCK */
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