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_ConnError(conn) ((conn)->error)
115 #define rx_IsServerConn(conn) ((conn)->type == RX_SERVER_CONNECTION)
116 #define rx_IsClientConn(conn) ((conn)->type == RX_CLIENT_CONNECTION)
117 /* Don't use these; use the IsServerConn style */
118 #define rx_ServerConn(conn) ((conn)->type == RX_SERVER_CONNECTION)
119 #define rx_ClientConn(conn) ((conn)->type == RX_CLIENT_CONNECTION)
120 #define rx_IsUsingPktCksum(conn) ((conn)->flags & RX_CONN_USING_PACKET_CKSUM)
121 #define rx_ServiceIdOf(conn) ((conn)->serviceId)
122 #define rx_SecurityClassOf(conn) ((conn)->securityIndex)
123 #define rx_SecurityObjectOf(conn) ((conn)->securityObject)
126 rx_IsLoopbackAddr(afs_uint32 addr)
128 return ((addr & 0xffff0000) == 0x7f000000);
132 * Macros callable by the user to further define attributes of a
133 * service. Must be called before rx_StartServer
136 /* Set the service stack size. This currently just sets the stack
137 * size for all processes to be the maximum seen, so far */
138 #define rx_SetStackSize(service, stackSize) \
139 rx_stackSize = (((stackSize) > rx_stackSize)? stackSize: rx_stackSize)
141 /* Set minimum number of processes guaranteed to be available for this
142 * service at all times */
143 #define rx_SetMinProcs(service, min) ((service)->minProcs = (min))
145 /* Set maximum number of processes that will be made available to this
146 * service (also a guarantee that this number will be made available
147 * if there is no competition) */
148 #define rx_SetMaxProcs(service, max) ((service)->maxProcs = (max))
150 /* Define a procedure to be called just before a server connection is destroyed */
151 #define rx_SetDestroyConnProc(service,proc) ((service)->destroyConnProc = (proc))
153 /* Define procedure to set service dead time */
154 #define rx_SetIdleDeadTime(service,time) ((service)->idleDeadTime = (time))
156 /* Define error to return in server connections when failing to answer */
157 #define rx_SetServerIdleDeadErr(service,err) ((service)->idleDeadErr = (err))
159 /* Define procedures for getting and setting before and after execute-request procs */
160 #define rx_SetAfterProc(service,proc) ((service)->afterProc = (proc))
161 #define rx_SetBeforeProc(service,proc) ((service)->beforeProc = (proc))
162 #define rx_GetAfterProc(service) ((service)->afterProc)
163 #define rx_GetBeforeProc(service) ((service)->beforeProc)
165 /* Define a procedure to be called when a server connection is created */
166 #define rx_SetNewConnProc(service, proc) ((service)->newConnProc = (proc))
168 /* NOTE: We'll probably redefine the following three routines, again, sometime. */
170 /* Set the connection dead time for any connections created for this service (server only) */
171 #define rx_SetServiceDeadTime(service, seconds) ((service)->secondsUntilDead = (seconds))
173 /* Enable or disable asymmetric client checking for a service */
174 #define rx_SetCheckReach(service, x) ((service)->checkReach = (x))
176 /* Set connection hard and idle timeouts for a connection */
177 #define rx_SetConnHardDeadTime(conn, seconds) ((conn)->hardDeadTime = (seconds))
178 #define rx_SetConnIdleDeadTime(conn, seconds) ((conn)->idleDeadTime = (seconds))
179 #define rx_SetServerConnIdleDeadErr(conn,err) ((conn)->idleDeadErr = (err))
181 /* Set the overload threshold and the overload error */
182 #define rx_SetBusyThreshold(threshold, code) (rx_BusyThreshold=(threshold),rx_BusyError=(code))
184 /* Set the error to use for retrying a connection during MTU tuning */
185 #define rx_SetMsgsizeRetryErr(conn, err) ((conn)->msgsizeRetryErr = (err))
187 /* If this flag is set,no new requests are processed by rx, all new requests are
188 returned with an error code of RX_CALL_DEAD ( transient error ) */
189 #define rx_SetRxTranquil() (rx_tranquil = 1)
190 #define rx_ClearRxTranquil() (rx_tranquil = 0)
192 /* Set the threshold and time to delay aborts for consecutive errors */
193 #define rx_SetCallAbortThreshold(A) (rxi_callAbortThreshhold = (A))
194 #define rx_SetCallAbortDelay(A) (rxi_callAbortDelay = (A))
195 #define rx_SetConnAbortThreshold(A) (rxi_connAbortThreshhold = (A))
196 #define rx_SetConnAbortDelay(A) (rxi_connAbortDelay = (A))
198 #define rx_GetCallAbortCode(call) ((call)->abortCode)
199 #define rx_SetCallAbortCode(call, code) ((call)->abortCode = (code))
201 #define cpspace(call) ((call)->curlen)
202 #define cppos(call) ((call)->curpos)
204 #define rx_Read(call, buf, nbytes) rx_ReadProc(call, buf, nbytes)
205 #define rx_Read32(call, value) rx_ReadProc32(call, value)
206 #define rx_Readv(call, iov, nio, maxio, nbytes) \
207 rx_ReadvProc(call, iov, nio, maxio, nbytes)
208 #define rx_Write(call, buf, nbytes) rx_WriteProc(call, buf, nbytes)
209 #define rx_Write32(call, value) rx_WriteProc32(call, value)
210 #define rx_Writev(call, iov, nio, nbytes) \
211 rx_WritevProc(call, iov, nio, nbytes)
213 /* This is the maximum size data packet that can be sent on this connection, accounting for security module-specific overheads. */
214 #define rx_MaxUserDataSize(call) ((call)->MTU - RX_HEADER_SIZE - (call)->conn->securityHeaderSize - (call)->conn->securityMaxTrailerSize)
216 /* Macros to turn the hot thread feature on and off. Enabling hot threads
217 * allows the listener thread to trade places with an idle worker thread,
218 * which moves the context switch from listener to worker out of the
221 #define rx_EnableHotThread() (rx_enable_hot_thread = 1)
222 #define rx_DisableHotThread() (rx_enable_hot_thread = 0)
224 #define rx_PutConnection(conn) rx_DestroyConnection(conn)
226 /* A connection is an authenticated communication path, allowing
227 limited multiple asynchronous conversations. */
229 struct rx_connection_rx_lock {
230 struct rx_connection_rx_lock *next; /* on hash chain _or_ free list */
231 struct rx_peer_rx_lock *peer;
233 struct rx_connection {
234 struct rx_connection *next; /* on hash chain _or_ free list */
235 struct rx_peer *peer;
237 #ifdef RX_ENABLE_LOCKS
238 afs_kmutex_t conn_call_lock; /* locks conn_call_cv */
239 afs_kcondvar_t conn_call_cv;
240 afs_kmutex_t conn_data_lock; /* locks packet data */
242 afs_uint32 epoch; /* Process start time of client side of connection */
243 afs_uint32 cid; /* Connection id (call channel is bottom bits) */
244 afs_int32 error; /* If this connection is in error, this is it */
246 struct rx_call_rx_lock *call[RX_MAXCALLS];
248 struct rx_call *call[RX_MAXCALLS];
250 afs_uint32 callNumber[RX_MAXCALLS]; /* Current call numbers */
251 afs_uint32 rwind[RX_MAXCALLS];
252 u_short twind[RX_MAXCALLS];
253 afs_uint32 serial; /* Next outgoing packet serial number */
254 afs_uint32 lastSerial; /* # of last packet received, for computing skew */
255 afs_int32 maxSerial; /* largest serial number seen on incoming packets */
256 afs_int32 lastPacketSize; /* last >max attempt */
257 afs_int32 lastPacketSizeSeq; /* seq number of attempt */
258 afs_int32 lastPingSize; /* last MTU ping attempt */
259 afs_int32 lastPingSizeSer; /* serial of last MTU ping attempt */
260 struct rxevent *challengeEvent; /* Scheduled when the server is challenging a */
261 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
262 struct rxevent *checkReachEvent; /* Scheduled when checking reachability */
263 int abortCount; /* count of abort messages sent */
264 /* client-- to retransmit the challenge */
265 struct rx_service *service; /* used by servers only */
266 u_short serviceId; /* To stamp on requests (clients only) */
267 afs_uint32 refCount; /* Reference count */
268 u_char flags; /* Defined below - (conn_data_lock) */
269 u_char type; /* Type of connection, defined below */
270 u_char secondsUntilPing; /* how often to ping for each active call */
271 u_char securityIndex; /* corresponds to the security class of the */
272 /* securityObject for this conn */
273 struct rx_securityClass *securityObject; /* Security object for this connection */
274 void *securityData; /* Private data for this conn's security class */
275 u_short securityHeaderSize; /* Length of security module's packet header data */
276 u_short securityMaxTrailerSize; /* Length of security module's packet trailer data */
278 int timeout; /* Overall timeout per call (seconds) for this conn */
279 int lastSendTime; /* Last send time for this connection */
280 u_short secondsUntilDead; /* Maximum silence from peer before RX_CALL_DEAD */
281 u_short hardDeadTime; /* hard max for call execution */
282 u_short idleDeadTime; /* max time a call can be idle (no data) */
283 u_char ackRate; /* how many packets between ack requests */
284 u_char makeCallWaiters; /* how many rx_NewCalls are waiting */
285 afs_int32 idleDeadErr;
286 afs_int32 secondsUntilNatPing; /* how often to ping conn */
287 struct rxevent *natKeepAliveEvent; /* Scheduled to keep connection open */
288 afs_int32 msgsizeRetryErr;
289 int nSpecific; /* number entries in specific data */
290 void **specific; /* pointer to connection specific data */
294 /* A service is installed by rx_NewService, and specifies a service type that
295 * is exported by this process. Incoming calls are stamped with the service
296 * type, and must match an installed service for the call to be accepted.
297 * Each service exported has a (port,serviceId) pair to uniquely identify it.
298 * It is also named: this is intended to allow a remote statistics gathering
299 * program to retrieve per service statistics without having to know the local
300 * service id's. Each service has a number of
303 /* security objects (instances of security classes) which implement
304 * various types of end-to-end security protocols for connections made
305 * to this service. Finally, there are two parameters controlling the
306 * number of requests which may be executed in parallel by this
307 * service: minProcs is the number of requests to this service which
308 * are guaranteed to be able to run in parallel at any time; maxProcs
309 * has two meanings: it limits the total number of requests which may
310 * execute in parallel and it also guarantees that that many requests
311 * may be handled in parallel if no other service is handling any
315 u_short serviceId; /* Service number */
316 afs_uint32 serviceHost; /* IP address for this service */
317 u_short servicePort; /* UDP port for this service */
318 char *serviceName; /* Name of the service */
319 osi_socket socket; /* socket structure or file descriptor */
320 u_short nRequestsRunning; /* Number of requests currently in progress */
321 u_short nSecurityObjects; /* Number of entries in security objects array */
322 struct rx_securityClass **securityObjects; /* Array of security class objects */
323 afs_int32(*executeRequestProc) (struct rx_call * acall); /* Routine to call when an rpc request is received */
324 void (*destroyConnProc) (struct rx_connection * tcon); /* Routine to call when a server connection is destroyed */
325 void (*newConnProc) (struct rx_connection * tcon); /* Routine to call when a server connection is created */
326 void (*beforeProc) (struct rx_call * acall); /* routine to call before a call is executed */
327 void (*afterProc) (struct rx_call * acall, afs_int32 code); /* routine to call after a call is executed */
328 u_short maxProcs; /* Maximum procs to be used for this service */
329 u_short minProcs; /* Minimum # of requests guaranteed executable simultaneously */
330 u_short connDeadTime; /* Seconds until a client of this service will be declared dead, if it is not responding */
331 u_short idleDeadTime; /* Time a server will wait for I/O to start up again */
332 u_char checkReach; /* Check for asymmetric clients? */
333 afs_int32 idleDeadErr;
334 int nSpecific; /* number entries in specific data */
335 void **specific; /* pointer to connection specific data */
336 #ifdef RX_ENABLE_LOCKS
337 afs_kmutex_t svc_data_lock; /* protect specific data */
342 #endif /* KDUMP_RX_LOCK */
344 /* A server puts itself on an idle queue for a service using an
345 * instance of the following structure. When a call arrives, the call
346 * structure pointer is placed in "newcall", the routine to execute to
347 * service the request is placed in executeRequestProc, and the
348 * process is woken up. The queue entry's address is used for the
349 * sleep/wakeup. If socketp is non-null, then this thread is willing
350 * to become a listener thread. A thread sets *socketp to -1 before
351 * sleeping. If *socketp is not -1 when the thread awakes, it is now
352 * the listener thread for *socketp. When socketp is non-null, tno
353 * contains the server's threadID, which is used to make decitions in GetCall.
356 struct rx_serverQueueEntry_rx_lock {
358 struct rx_serverQueueEntry {
360 struct rx_queue queueItemHeader;
362 struct rx_call_rx_lock *newcall;
364 struct rx_call *newcall;
366 #ifdef RX_ENABLE_LOCKS
375 /* A peer refers to a peer process, specified by a (host,port) pair. There may be more than one peer on a given host. */
377 struct rx_peer_rx_lock {
378 struct rx_peer_rx_lock *next; /* Next in hash conflict or free list */
381 struct rx_peer *next; /* Next in hash conflict or free list */
383 #ifdef RX_ENABLE_LOCKS
384 afs_kmutex_t peer_lock; /* Lock peer */
385 #endif /* RX_ENABLE_LOCKS */
386 afs_uint32 host; /* Remote IP address, in net byte order */
387 u_short port; /* Remote UDP port, in net byte order */
389 /* interface mtu probably used for this host - includes RX Header */
390 u_short ifMTU; /* doesn't include IP header */
392 /* For garbage collection */
393 afs_uint32 idleWhen; /* When the refcountwent to zero */
394 afs_uint32 refCount; /* Reference count for this structure */
396 /* Congestion control parameters */
397 u_char burstSize; /* Reinitialization size for the burst parameter */
398 u_char burst; /* Number of packets that can be transmitted right now, without pausing */
399 struct clock burstWait; /* Delay until new burst is allowed */
400 struct rx_queue congestionQueue; /* Calls that are waiting for non-zero burst value */
401 int rtt; /* Smoothed round trip time, measured in milliseconds/8 */
402 int rtt_dev; /* Smoothed rtt mean difference, in milliseconds/4 */
403 struct clock timeout; /* Current retransmission delay */
404 int nSent; /* Total number of distinct data packets sent, not including retransmissions */
405 int reSends; /* Total number of retransmissions for this peer, since this structure was created */
407 /* Skew: if a packet is received N packets later than expected (based
408 * on packet serial numbers), then we define it to have a skew of N.
409 * The maximum skew values allow us to decide when a packet hasn't
410 * been received yet because it is out-of-order, as opposed to when it
411 * is likely to have been dropped. */
412 afs_uint32 inPacketSkew; /* Maximum skew on incoming packets */
413 afs_uint32 outPacketSkew; /* Peer-reported max skew on our sent packets */
414 int rateFlag; /* Flag for rate testing (-no 0yes +decrement) */
416 /* the "natural" MTU, excluding IP,UDP headers, is negotiated by the endpoints */
419 /* negotiated maximum number of packets to send in a single datagram. */
420 u_short maxDgramPackets;
421 /* local maximum number of packets to send in a single datagram. */
422 u_short ifDgramPackets;
424 * MTU, cwind, and nDgramPackets are used to initialize
425 * slow start parameters for new calls. These values are set whenever a
426 * call sends a retransmission and at the end of each call.
427 * congestSeq is incremented each time the congestion parameters are
428 * changed by a call recovering from a dropped packet. A call used
429 * MAX when updating congestion parameters if it started with the
430 * current congestion sequence number, otherwise it uses MIN.
432 u_short MTU; /* MTU for AFS 3.4a jumboGrams */
433 u_short cwind; /* congestion window */
434 u_short nDgramPackets; /* number packets per AFS 3.5 jumbogram */
435 u_short congestSeq; /* Changed when a call retransmits */
436 afs_hyper_t bytesSent; /* Number of bytes sent to this peer */
437 afs_hyper_t bytesReceived; /* Number of bytes received from this peer */
438 struct rx_queue rpcStats; /* rpc statistic list */
439 int lastReachTime; /* Last time we verified reachability */
440 afs_int32 maxPacketSize; /* peer packetsize hint */
443 #ifndef KDUMP_RX_LOCK
444 /* Flag bits for connection structure */
445 #define RX_CONN_MAKECALL_WAITING 1 /* rx_NewCall is waiting for a channel */
446 #define RX_CONN_DESTROY_ME 2 /* Destroy *client* connection after last call */
447 #define RX_CONN_USING_PACKET_CKSUM 4 /* non-zero header.spare field seen */
448 #define RX_CONN_KNOW_WINDOW 8 /* window size negotiation works */
449 #define RX_CONN_RESET 16 /* connection is reset, remove */
450 #define RX_CONN_BUSY 32 /* connection is busy; don't delete */
451 #define RX_CONN_ATTACHWAIT 64 /* attach waiting for peer->lastReach */
452 #define RX_CONN_MAKECALL_ACTIVE 128 /* a thread is actively in rx_NewCall */
454 /* Type of connection, client or server */
455 #define RX_CLIENT_CONNECTION 0
456 #define RX_SERVER_CONNECTION 1
457 #endif /* !KDUMP_RX_LOCK */
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 u_short twind; /* The transmit window: we cannot assign a sequence number to a packet >= tfirst + twind */
516 u_short cwind; /* The congestion window */
517 u_short nSoftAcked; /* Number soft acked transmit packets */
518 u_short nextCwind; /* The congestion window after recovery */
519 u_short nCwindAcks; /* Number acks received at current cwind */
520 u_short ssthresh; /* The slow start threshold */
521 u_short nDgramPackets; /* Packets per AFS 3.5 jumbogram */
522 u_short nAcks; /* The number of consecutive acks */
523 u_short nNacks; /* Number packets acked that follow the
524 * first negatively acked packet */
525 u_short nSoftAcks; /* The number of delayed soft acks */
526 u_short nHardAcks; /* The number of delayed hard acks */
527 u_short congestSeq; /* Peer's congestion sequence counter */
528 struct rxevent *resendEvent; /* If this is non-Null, there is a retransmission event pending */
529 struct rxevent *timeoutEvent; /* If this is non-Null, then there is an overall timeout for this call */
530 struct rxevent *keepAliveEvent; /* Scheduled periodically in active calls to keep call alive */
531 struct rxevent *growMTUEvent; /* Scheduled periodically in active calls to discover true maximum MTU */
532 struct rxevent *delayedAckEvent; /* Scheduled after all packets are received to send an ack if a reply or new call is not generated soon */
533 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
534 int abortCode; /* error code from last RPC */
535 int abortCount; /* number of times last error was sent */
536 u_int lastSendTime; /* Last time a packet was sent on this call */
537 u_int lastReceiveTime; /* Last time a packet was received for this call */
538 u_int lastSendData; /* Last time a nonping was sent on this call */
539 void (*arrivalProc) (struct rx_call * call, void * mh, int index); /* Procedure to call when reply is received */
540 void *arrivalProcHandle; /* Handle to pass to replyFunc */
541 int arrivalProcArg; /* Additional arg to pass to reply Proc */
542 afs_uint32 lastAcked; /* last packet "hard" acked by receiver */
543 afs_uint32 startWait; /* time server began waiting for input data/send quota */
544 struct clock traceWait; /* time server began waiting for input data/send quota */
545 struct clock traceStart; /* time the call started running */
546 u_short MTU; /* size of packets currently sending */
547 #ifdef RX_ENABLE_LOCKS
548 short refCount; /* Used to keep calls from disappearring
549 * when we get them from a queue. */
550 #endif /* RX_ENABLE_LOCKS */
551 /* Call refcount modifiers */
552 #define RX_CALL_REFCOUNT_BEGIN 0 /* GetCall/NewCall/EndCall */
553 #define RX_CALL_REFCOUNT_RESEND 1 /* resend event */
554 #define RX_CALL_REFCOUNT_DELAY 2 /* delayed ack */
555 #define RX_CALL_REFCOUNT_ALIVE 3 /* keep alive event */
556 #define RX_CALL_REFCOUNT_PACKET 4 /* waiting for packets. */
557 #define RX_CALL_REFCOUNT_SEND 5 /* rxi_Send */
558 #define RX_CALL_REFCOUNT_ACKALL 6 /* rxi_AckAll */
559 #define RX_CALL_REFCOUNT_ABORT 7 /* delayed abort */
560 #define RX_CALL_REFCOUNT_MAX 8 /* array size. */
561 #ifdef RX_REFCOUNT_CHECK
562 short refCDebug[RX_CALL_REFCOUNT_MAX];
563 #endif /* RX_REFCOUNT_CHECK */
566 * iov, iovNBytes, iovMax, and iovNext are set in rxi_ReadvProc()
567 * and adjusted by rxi_FillReadVec(). iov does not own the buffers
568 * it refers to. The buffers belong to the packets stored in iovq.
569 * Only one call to rx_ReadvProc() can be active at a time.
572 int iovNBytes; /* byte count for current iovec */
573 int iovMax; /* number elements in current iovec */
574 int iovNext; /* next entry in current iovec */
575 struct iovec *iov; /* current iovec */
577 struct clock queueTime; /* time call was queued */
578 struct clock startTime; /* time call was started */
579 afs_hyper_t bytesSent; /* Number bytes sent */
580 afs_hyper_t bytesRcvd; /* Number bytes received */
583 #ifdef RXDEBUG_PACKET
584 u_short tqc; /* packet count in tq */
585 u_short rqc; /* packet count in rq */
586 u_short iovqc; /* packet count in iovq */
589 struct rx_call_rx_lock *allNextp;
591 struct rx_call *allNextp;
597 #ifndef KDUMP_RX_LOCK
598 /* Major call states */
599 #define RX_STATE_NOTINIT 0 /* Call structure has never been initialized */
600 #define RX_STATE_PRECALL 1 /* Server-only: call is not in progress, but packets have arrived */
601 #define RX_STATE_ACTIVE 2 /* An active call; a process is dealing with this call */
602 #define RX_STATE_DALLY 3 /* Dallying after process is done with call */
603 #define RX_STATE_HOLD 4 /* Waiting for acks on reply data packets */
604 #define RX_STATE_RESET 5 /* Call is being reset */
606 /* Call modes: the modes of a call in RX_STATE_ACTIVE state (process attached) */
607 #define RX_MODE_SENDING 1 /* Sending or ready to send */
608 #define RX_MODE_RECEIVING 2 /* Receiving or ready to receive */
609 #define RX_MODE_ERROR 3 /* Something in error for current conversation */
610 #define RX_MODE_EOF 4 /* Server has flushed (or client has read) last reply packet */
613 #define RX_CALL_READER_WAIT 1 /* Reader is waiting for next packet */
614 #define RX_CALL_WAIT_WINDOW_ALLOC 2 /* Sender is waiting for window to allocate buffers */
615 #define RX_CALL_WAIT_WINDOW_SEND 4 /* Sender is waiting for window to send buffers */
616 #define RX_CALL_WAIT_PACKETS 8 /* Sender is waiting for packet buffers */
617 #define RX_CALL_WAIT_PROC 16 /* Waiting for a process to be assigned */
618 #define RX_CALL_RECEIVE_DONE 32 /* All packets received on this call */
619 #define RX_CALL_CLEARED 64 /* Receive queue cleared in precall state */
620 #define RX_CALL_TQ_BUSY 128 /* Call's Xmit Queue is busy; don't modify */
621 #define RX_CALL_TQ_CLEARME 256 /* Need to clear this call's TQ later */
622 #define RX_CALL_TQ_SOME_ACKED 512 /* rxi_Start needs to discard ack'd packets. */
623 #define RX_CALL_TQ_WAIT 1024 /* Reader is waiting for TQ_BUSY to be reset */
624 #define RX_CALL_FAST_RECOVER 2048 /* call is doing congestion recovery */
625 #define RX_CALL_FAST_RECOVER_WAIT 4096 /* thread is waiting to start recovery */
626 #define RX_CALL_SLOW_START_OK 8192 /* receiver acks every other packet */
627 #define RX_CALL_IOVEC_WAIT 16384 /* waiting thread is using an iovec */
628 #define RX_CALL_HAVE_LAST 32768 /* Last packet has been received */
629 #define RX_CALL_NEED_START 0x10000 /* tells rxi_Start to start again */
631 /* Maximum number of acknowledgements in an acknowledge packet */
632 #define RX_MAXACKS 255
634 /* The structure of the data portion of an acknowledge packet: An acknowledge
635 * packet is in network byte order at all times. An acknowledgement is always
636 * prompted for a specific reason by a specific incoming packet. This reason
637 * is reported in "reason" and the packet's sequence number in the packet
638 * header.seq. In addition to this information, all of the current
639 * acknowledgement information about this call is placed in the packet.
640 * "FirstPacket" is the sequence number of the first packet represented in an
641 * array of bytes, "acks", containing acknowledgement information for a number
642 * of consecutive packets. All packets prior to FirstPacket are implicitly
643 * acknowledged: the sender need no longer be concerned about them. Packets
644 * from firstPacket+nAcks and on are not acknowledged. Packets in the range
645 * [firstPacket,firstPacket+nAcks) are each acknowledged explicitly. The
646 * acknowledgement may be RX_NACK if the packet is not (currently) at the
647 * receiver (it may have never been received, or received and then later
648 * dropped), or it may be RX_ACK if the packet is queued up waiting to be read
649 * by the upper level software. RX_ACK does not imply that the packet may not
650 * be dropped before it is read; it does imply that the sender should stop
651 * retransmitting the packet until notified otherwise. The field
652 * previousPacket identifies the previous packet received by the peer. This
653 * was used in a previous version of this software, and could be used in the
654 * future. The serial number in the data part of the ack packet corresponds to
655 * the serial number oof the packet which prompted the acknowledge. Any
656 * packets which are explicitly not acknowledged, and which were last
657 * transmitted with a serial number less than the provided serial number,
658 * should be retransmitted immediately. Actually, this is slightly inaccurate:
659 * packets are not necessarily received in order. When packets are habitually
660 * transmitted out of order, this is allowed for in the retransmission
661 * algorithm by introducing the notion of maximum packet skew: the degree of
662 * out-of-orderness of the packets received on the wire. This number is
663 * communicated from the receiver to the sender in ack packets. */
665 struct rx_ackPacket {
666 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. */
667 u_short maxSkew; /* Maximum difference between serial# of packet acknowledged and highest packet yet received */
668 afs_uint32 firstPacket; /* The first packet in the list of acknowledged packets */
669 afs_uint32 previousPacket; /* The previous packet number received (obsolete?) */
670 afs_uint32 serial; /* Serial number of the packet which prompted the acknowledge */
671 u_char reason; /* Reason for the acknowledge of ackPacket, defined below */
672 u_char nAcks; /* Number of acknowledgements */
673 u_char acks[RX_MAXACKS]; /* Up to RX_MAXACKS packet acknowledgements, defined below */
674 /* 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) */
677 #define FIRSTACKOFFSET 4
679 /* Reason for acknowledge message */
680 #define RX_ACK_REQUESTED 1 /* Peer requested an ack on this packet */
681 #define RX_ACK_DUPLICATE 2 /* Duplicate packet */
682 #define RX_ACK_OUT_OF_SEQUENCE 3 /* Packet out of sequence */
683 #define RX_ACK_EXCEEDS_WINDOW 4 /* Packet sequence number higher than window; discarded */
684 #define RX_ACK_NOSPACE 5 /* No buffer space at all */
685 #define RX_ACK_PING 6 /* This is a keep-alive ack */
686 #define RX_ACK_PING_RESPONSE 7 /* Ack'ing because we were pinged */
687 #define RX_ACK_DELAY 8 /* Ack generated since nothing has happened since receiving packet */
688 #define RX_ACK_IDLE 9 /* Similar to RX_ACK_DELAY, but can
689 * be used to compute RTT */
690 #define RX_ACK_MTU -1 /* will be rewritten to ACK_PING */
692 /* Packet acknowledgement type */
693 #define RX_ACK_TYPE_NACK 0 /* I Don't have this packet */
694 #define RX_ACK_TYPE_ACK 1 /* I have this packet, although I may discard it later */
696 /* The packet size transmitted for an acknowledge is adjusted to reflect the actual size of the acks array. This macro defines the size */
697 #define rx_AckDataSize(nAcks) (3 + nAcks + offsetof(struct rx_ackPacket, acks[0]))
699 #define RX_CHALLENGE_TIMEOUT 2 /* Number of seconds before another authentication request packet is generated */
700 #define RX_CHALLENGE_MAXTRIES 50 /* Max # of times we resend challenge */
701 #define RX_CHECKREACH_TIMEOUT 2 /* Number of seconds before another ping is generated */
702 #define RX_CHECKREACH_TTL 60 /* Re-check reachability this often */
704 /* 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 */
706 /* Something bad happened to the connection; temporary loss of communication */
707 #define RX_CALL_DEAD (-1)
709 /* An invalid operation, such as a client attempting to send data after having received the beginning of a reply from the server */
710 #define RX_INVALID_OPERATION (-2)
712 /* An optional timeout per call may be specified */
713 #define RX_CALL_TIMEOUT (-3)
715 /* End of data on a read */
718 /* Some sort of low-level protocol error */
719 #define RX_PROTOCOL_ERROR (-5)
721 /* 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 */
722 #define RX_USER_ABORT (-6)
724 /* Port already in use (from rx_Init) */
725 #define RX_ADDRINUSE (-7)
727 /* EMSGSIZE returned from network. Packet too big, must fragment */
728 #define RX_MSGSIZE (-8)
730 /* transient failure detected ( possibly the server is restarting ) */
731 /* this shud be equal to VRESTARTING ( util/errors.h ) for old clients to work */
732 #define RX_RESTARTING (-100)
741 struct rx_securityObjectStats {
742 char type; /* 0:unk 1:null,2:vab 3:kad */
744 char sparec[10]; /* force correct alignment */
745 afs_int32 flags; /* 1=>unalloc, 2=>auth, 4=>expired */
747 afs_uint32 packetsReceived;
748 afs_uint32 packetsSent;
749 afs_uint32 bytesReceived;
750 afs_uint32 bytesSent;
755 /* Configuration settings */
757 /* Enum for storing configuration variables which can be set via the
758 * SetConfiguration method in the rx_securityClass, below
762 RXS_CONFIG_FLAGS /* afs_uint32 set of bitwise flags */
763 } rx_securityConfigVariables;
765 /* For the RXS_CONFIG_FLAGS, the following bit values are defined */
767 /* Disable the principal name contains dot check in rxkad */
768 #define RXS_CONFIG_FLAGS_DISABLE_DOTCHECK 0x01
770 /* XXXX (rewrite this description) A security class object contains a set of
771 * procedures and some private data to implement a security model for rx
772 * connections. These routines are called by rx as appropriate. Rx knows
773 * nothing about the internal details of any particular security model, or
774 * about security state. Rx does maintain state per connection on behalf of
775 * the security class. Each security class implementation is also expected to
776 * provide routines to create these objects. Rx provides a basic routine to
777 * allocate one of these objects; this routine must be called by the class. */
778 struct rx_securityClass {
779 struct rx_securityOps {
780 int (*op_Close) (struct rx_securityClass * aobj);
781 int (*op_NewConnection) (struct rx_securityClass * aobj,
782 struct rx_connection * aconn);
783 int (*op_PreparePacket) (struct rx_securityClass * aobj,
784 struct rx_call * acall,
785 struct rx_packet * apacket);
786 int (*op_SendPacket) (struct rx_securityClass * aobj,
787 struct rx_call * acall,
788 struct rx_packet * apacket);
789 int (*op_CheckAuthentication) (struct rx_securityClass * aobj,
790 struct rx_connection * aconn);
791 int (*op_CreateChallenge) (struct rx_securityClass * aobj,
792 struct rx_connection * aconn);
793 int (*op_GetChallenge) (struct rx_securityClass * aobj,
794 struct rx_connection * aconn,
795 struct rx_packet * apacket);
796 int (*op_GetResponse) (struct rx_securityClass * aobj,
797 struct rx_connection * aconn,
798 struct rx_packet * apacket);
799 int (*op_CheckResponse) (struct rx_securityClass * aobj,
800 struct rx_connection * aconn,
801 struct rx_packet * apacket);
802 int (*op_CheckPacket) (struct rx_securityClass * aobj,
803 struct rx_call * acall,
804 struct rx_packet * apacket);
805 int (*op_DestroyConnection) (struct rx_securityClass * aobj,
806 struct rx_connection * aconn);
807 int (*op_GetStats) (struct rx_securityClass * aobj,
808 struct rx_connection * aconn,
809 struct rx_securityObjectStats * astats);
810 int (*op_SetConfiguration) (struct rx_securityClass * aobj,
811 struct rx_connection * aconn,
812 rx_securityConfigVariables atype,
814 void ** acurrentValue);
815 int (*op_Spare2) (void);
816 int (*op_Spare3) (void);
822 #define RXS_OP(obj,op,args) ((obj && (obj->ops->op_ ## op)) ? (*(obj)->ops->op_ ## op)args : 0)
824 #define RXS_Close(obj) RXS_OP(obj,Close,(obj))
825 #define RXS_NewConnection(obj,conn) RXS_OP(obj,NewConnection,(obj,conn))
826 #define RXS_PreparePacket(obj,call,packet) RXS_OP(obj,PreparePacket,(obj,call,packet))
827 #define RXS_SendPacket(obj,call,packet) RXS_OP(obj,SendPacket,(obj,call,packet))
828 #define RXS_CheckAuthentication(obj,conn) RXS_OP(obj,CheckAuthentication,(obj,conn))
829 #define RXS_CreateChallenge(obj,conn) RXS_OP(obj,CreateChallenge,(obj,conn))
830 #define RXS_GetChallenge(obj,conn,packet) RXS_OP(obj,GetChallenge,(obj,conn,packet))
831 #define RXS_GetResponse(obj,conn,packet) RXS_OP(obj,GetResponse,(obj,conn,packet))
832 #define RXS_CheckResponse(obj,conn,packet) RXS_OP(obj,CheckResponse,(obj,conn,packet))
833 #define RXS_CheckPacket(obj,call,packet) RXS_OP(obj,CheckPacket,(obj,call,packet))
834 #define RXS_DestroyConnection(obj,conn) RXS_OP(obj,DestroyConnection,(obj,conn))
835 #define RXS_GetStats(obj,conn,stats) RXS_OP(obj,GetStats,(obj,conn,stats))
836 #define RXS_SetConfiguration(obj, conn, type, value, currentValue) RXS_OP(obj, SetConfiguration,(obj,conn,type,value,currentValue))
839 /* Structure for keeping rx statistics. Note that this structure is returned
840 * by rxdebug, so, for compatibility reasons, new fields should be appended (or
841 * spares used), the rxdebug protocol checked, if necessary, and the PrintStats
842 * code should be updated as well.
844 * Clearly we assume that ntohl will work on these structures so sizeof(int)
845 * must equal sizeof(afs_int32). */
847 struct rx_statistics { /* General rx statistics */
848 int packetRequests; /* Number of packet allocation requests */
849 int receivePktAllocFailures;
850 int sendPktAllocFailures;
851 int specialPktAllocFailures;
852 int socketGreedy; /* Whether SO_GREEDY succeeded */
853 int bogusPacketOnRead; /* Number of inappropriately short packets received */
854 int bogusHost; /* Host address from bogus packets */
855 int noPacketOnRead; /* Number of read packets attempted when there was actually no packet to read off the wire */
856 int noPacketBuffersOnRead; /* Number of dropped data packets due to lack of packet buffers */
857 int selects; /* Number of selects waiting for packet or timeout */
858 int sendSelects; /* Number of selects forced when sending packet */
859 int packetsRead[RX_N_PACKET_TYPES]; /* Total number of packets read, per type */
860 int dataPacketsRead; /* Number of unique data packets read off the wire */
861 int ackPacketsRead; /* Number of ack packets read */
862 int dupPacketsRead; /* Number of duplicate data packets read */
863 int spuriousPacketsRead; /* Number of inappropriate data packets */
864 int packetsSent[RX_N_PACKET_TYPES]; /* Number of rxi_Sends: packets sent over the wire, per type */
865 int ackPacketsSent; /* Number of acks sent */
866 int pingPacketsSent; /* Total number of ping packets sent */
867 int abortPacketsSent; /* Total number of aborts */
868 int busyPacketsSent; /* Total number of busies sent received */
869 int dataPacketsSent; /* Number of unique data packets sent */
870 int dataPacketsReSent; /* Number of retransmissions */
871 int dataPacketsPushed; /* Number of retransmissions pushed early by a NACK */
872 int ignoreAckedPacket; /* Number of packets with acked flag, on rxi_Start */
873 struct clock totalRtt; /* Total round trip time measured (use to compute average) */
874 struct clock minRtt; /* Minimum round trip time measured */
875 struct clock maxRtt; /* Maximum round trip time measured */
876 int nRttSamples; /* Total number of round trip samples */
877 int nServerConns; /* Total number of server connections */
878 int nClientConns; /* Total number of client connections */
879 int nPeerStructs; /* Total number of peer structures */
880 int nCallStructs; /* Total number of call structures allocated */
881 int nFreeCallStructs; /* Total number of previously allocated free call structures */
883 afs_int32 fatalErrors;
884 int ignorePacketDally; /* packets dropped because call is in dally state */
885 int receiveCbufPktAllocFailures;
886 int sendCbufPktAllocFailures;
891 /* structures for debug input and output packets */
893 /* debug input types */
899 /* Invalid rx debug package type */
900 #define RX_DEBUGI_BADTYPE (-8)
902 #define RX_DEBUGI_VERSION_MINIMUM ('L') /* earliest real version */
903 #define RX_DEBUGI_VERSION ('S') /* Latest version */
904 /* first version w/ secStats */
905 #define RX_DEBUGI_VERSION_W_SECSTATS ('L')
906 /* version M is first supporting GETALLCONN and RXSTATS type */
907 #define RX_DEBUGI_VERSION_W_GETALLCONN ('M')
908 #define RX_DEBUGI_VERSION_W_RXSTATS ('M')
909 /* last version with unaligned debugConn */
910 #define RX_DEBUGI_VERSION_W_UNALIGNED_CONN ('L')
911 #define RX_DEBUGI_VERSION_W_WAITERS ('N')
912 #define RX_DEBUGI_VERSION_W_IDLETHREADS ('O')
913 #define RX_DEBUGI_VERSION_W_NEWPACKETTYPES ('P')
914 #define RX_DEBUGI_VERSION_W_GETPEER ('Q')
915 #define RX_DEBUGI_VERSION_W_WAITED ('R')
916 #define RX_DEBUGI_VERSION_W_PACKETS ('S')
918 #define RX_DEBUGI_GETSTATS 1 /* get basic rx stats */
919 #define RX_DEBUGI_GETCONN 2 /* get connection info */
920 #define RX_DEBUGI_GETALLCONN 3 /* get even uninteresting conns */
921 #define RX_DEBUGI_RXSTATS 4 /* get all rx stats */
922 #define RX_DEBUGI_GETPEER 5 /* get all peer structs */
924 struct rx_debugStats {
925 afs_int32 nFreePackets;
926 afs_int32 packetReclaims;
927 afs_int32 callsExecuted;
928 char waitingForPackets;
933 afs_int32 idleThreads; /* Number of server threads that are idle */
939 struct rx_debugConn_vL {
943 afs_int32 callNumber[RX_MAXCALLS];
949 char callState[RX_MAXCALLS];
950 char callMode[RX_MAXCALLS];
951 char callFlags[RX_MAXCALLS];
952 char callOther[RX_MAXCALLS];
953 /* old style getconn stops here */
954 struct rx_securityObjectStats secStats;
955 afs_int32 sparel[10];
958 struct rx_debugConn {
962 afs_int32 callNumber[RX_MAXCALLS];
968 char sparec[3]; /* force correct alignment */
969 char callState[RX_MAXCALLS];
970 char callMode[RX_MAXCALLS];
971 char callFlags[RX_MAXCALLS];
972 char callOther[RX_MAXCALLS];
973 /* old style getconn stops here */
974 struct rx_securityObjectStats secStats;
980 struct rx_debugPeer {
988 struct clock burstWait;
991 struct clock timeout;
994 afs_int32 inPacketSkew;
995 afs_int32 outPacketSkew;
999 u_short maxDgramPackets;
1000 u_short ifDgramPackets;
1003 u_short nDgramPackets;
1005 afs_hyper_t bytesSent;
1006 afs_hyper_t bytesReceived;
1007 afs_int32 sparel[10];
1010 #define RX_OTHER_IN 1 /* packets avail in in queue */
1011 #define RX_OTHER_OUT 2 /* packets avail in out queue */
1015 /* Only include this once, even when re-loading for kdump. */
1016 #ifndef _CALL_REF_DEFINED_
1017 #define _CALL_REF_DEFINED_
1019 #ifdef RX_ENABLE_LOCKS
1020 #ifdef RX_REFCOUNT_CHECK
1021 /* RX_REFCOUNT_CHECK is used to test for call refcount leaks by event
1024 extern int rx_callHoldType;
1025 #define CALL_HOLD(call, type) do { \
1027 call->refCDebug[type]++; \
1028 if (call->refCDebug[type] > 50) {\
1029 rx_callHoldType = type; \
1030 osi_Panic("Huge call refCount"); \
1033 #define CALL_RELE(call, type) do { \
1035 call->refCDebug[type]--; \
1036 if (call->refCDebug[type] > 50) {\
1037 rx_callHoldType = type; \
1038 osi_Panic("Negative call refCount"); \
1041 #else /* RX_REFCOUNT_CHECK */
1042 #define CALL_HOLD(call, type) call->refCount++
1043 #define CALL_RELE(call, type) call->refCount--
1044 #endif /* RX_REFCOUNT_CHECK */
1046 #else /* RX_ENABLE_LOCKS */
1047 #define CALL_HOLD(call, type)
1048 #define CALL_RELE(call, type)
1049 #endif /* RX_ENABLE_LOCKS */
1051 #endif /* _CALL_REF_DEFINED_ */
1053 #define RX_SERVER_DEBUG_SEC_STATS 0x1
1054 #define RX_SERVER_DEBUG_ALL_CONN 0x2
1055 #define RX_SERVER_DEBUG_RX_STATS 0x4
1056 #define RX_SERVER_DEBUG_WAITER_CNT 0x8
1057 #define RX_SERVER_DEBUG_IDLE_THREADS 0x10
1058 #define RX_SERVER_DEBUG_OLD_CONN 0x20
1059 #define RX_SERVER_DEBUG_NEW_PACKETS 0x40
1060 #define RX_SERVER_DEBUG_ALL_PEER 0x80
1061 #define RX_SERVER_DEBUG_WAITED_CNT 0x100
1062 #define RX_SERVER_DEBUG_PACKETS_CNT 0x200
1064 #define AFS_RX_STATS_CLEAR_ALL 0xffffffff
1065 #define AFS_RX_STATS_CLEAR_INVOCATIONS 0x1
1066 #define AFS_RX_STATS_CLEAR_BYTES_SENT 0x2
1067 #define AFS_RX_STATS_CLEAR_BYTES_RCVD 0x4
1068 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SUM 0x8
1069 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SQUARE 0x10
1070 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MIN 0x20
1071 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MAX 0x40
1072 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SUM 0x80
1073 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SQUARE 0x100
1074 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MIN 0x200
1075 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MAX 0x400
1077 typedef struct rx_function_entry_v1 {
1078 afs_uint32 remote_peer;
1079 afs_uint32 remote_port;
1080 afs_uint32 remote_is_server;
1081 afs_uint32 interfaceId;
1082 afs_uint32 func_total;
1083 afs_uint32 func_index;
1084 afs_hyper_t invocations;
1085 afs_hyper_t bytes_sent;
1086 afs_hyper_t bytes_rcvd;
1087 struct clock queue_time_sum;
1088 struct clock queue_time_sum_sqr;
1089 struct clock queue_time_min;
1090 struct clock queue_time_max;
1091 struct clock execution_time_sum;
1092 struct clock execution_time_sum_sqr;
1093 struct clock execution_time_min;
1094 struct clock execution_time_max;
1095 } rx_function_entry_v1_t, *rx_function_entry_v1_p;
1098 * If you need to change rx_function_entry, you should probably create a brand
1099 * new structure. Keeping the old structure will allow backwards compatibility
1100 * with old clients (even if it is only used to calculate allocation size).
1101 * If you do change the size or the format, you'll need to bump
1102 * RX_STATS_RETRIEVAL_VERSION. This allows some primitive form
1103 * of versioning a la rxdebug.
1106 #define RX_STATS_RETRIEVAL_VERSION 1 /* latest version */
1107 #define RX_STATS_RETRIEVAL_FIRST_EDITION 1 /* first implementation */
1109 typedef struct rx_interface_stat {
1110 struct rx_queue queue_header;
1111 struct rx_queue all_peers;
1112 rx_function_entry_v1_t stats[1]; /* make sure this is aligned correctly */
1113 } rx_interface_stat_t, *rx_interface_stat_p;
1115 #define RX_STATS_SERVICE_ID 409
1118 extern int rx_DumpCalls(FILE *outputFile, char *cookie);
1120 #define rx_MutexIncrement(object, mutex) InterlockedIncrement(&object)
1121 #define rx_MutexAdd(object, addend, mutex) InterlockedExchangeAdd(&object, addend)
1122 #define rx_MutexDecrement(object, mutex) InterlockedDecrement(&object)
1123 #define rx_MutexAdd1Increment2(object1, addend, object2, mutex) \
1125 MUTEX_ENTER(&mutex); \
1126 object1 += addend; \
1127 InterlockedIncrement(&object2); \
1128 MUTEX_EXIT(&mutex); \
1130 #define rx_MutexAdd1Decrement2(object1, addend, object2, mutex) \
1132 MUTEX_ENTER(&mutex); \
1133 object1 += addend; \
1134 InterlockedDecrement(&object2); \
1135 MUTEX_EXIT(&mutex); \
1138 #define rx_MutexIncrement(object, mutex) \
1140 MUTEX_ENTER(&mutex); \
1142 MUTEX_EXIT(&mutex); \
1144 #define rx_MutexAdd(object, addend, mutex) \
1146 MUTEX_ENTER(&mutex); \
1148 MUTEX_EXIT(&mutex); \
1150 #define rx_MutexAdd1Increment2(object1, addend, object2, mutex) \
1152 MUTEX_ENTER(&mutex); \
1153 object1 += addend; \
1155 MUTEX_EXIT(&mutex); \
1157 #define rx_MutexAdd1Decrement2(object1, addend, object2, mutex) \
1159 MUTEX_ENTER(&mutex); \
1160 object1 += addend; \
1162 MUTEX_EXIT(&mutex); \
1164 #define rx_MutexDecrement(object, mutex) \
1166 MUTEX_ENTER(&mutex); \
1168 MUTEX_EXIT(&mutex); \
1172 #endif /* _RX_ End of rx.h */
1175 #include "rx/rx_prototypes.h"
1177 #include "rx_prototypes.h"
1180 #endif /* !KDUMP_RX_LOCK */