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 #define ADDRSPERSITE 16
77 /* Bottom n-bits of the Call Identifier give the call number */
78 #define RX_MAXCALLS 4 /* Power of 2; max async calls per connection */
79 #define RX_CIDSHIFT 2 /* Log2(RX_MAXCALLS) */
80 #define RX_CHANNELMASK (RX_MAXCALLS-1)
81 #define RX_CIDMASK (~RX_CHANNELMASK)
82 #endif /* !KDUMP_RX_LOCK */
85 typedef void (*rx_destructor_t) (void *);
86 int rx_KeyCreate(rx_destructor_t);
87 osi_socket rxi_GetHostUDPSocket(u_int host, u_short port);
88 osi_socket rxi_GetUDPSocket(u_short port);
92 int ntoh_syserr_conv(int error);
97 #define rx_ConnectionOf(call) ((call)->conn)
98 #define rx_PeerOf(conn) ((conn)->peer)
99 #define rx_HostOf(peer) ((peer)->host)
100 #define rx_PortOf(peer) ((peer)->port)
101 #define rx_SetLocalStatus(call, status) ((call)->localStatus = (status))
102 #define rx_GetLocalStatus(call, status) ((call)->localStatus)
103 #define rx_GetRemoteStatus(call) ((call)->remoteStatus)
104 #define rx_Error(call) ((call)->error)
105 #define rx_ConnError(conn) ((conn)->error)
106 #define rx_IsServerConn(conn) ((conn)->type == RX_SERVER_CONNECTION)
107 #define rx_IsClientConn(conn) ((conn)->type == RX_CLIENT_CONNECTION)
108 /* Don't use these; use the IsServerConn style */
109 #define rx_ServerConn(conn) ((conn)->type == RX_SERVER_CONNECTION)
110 #define rx_ClientConn(conn) ((conn)->type == RX_CLIENT_CONNECTION)
111 #define rx_IsUsingPktCksum(conn) ((conn)->flags & RX_CONN_USING_PACKET_CKSUM)
112 #define rx_ServiceIdOf(conn) ((conn)->serviceId)
113 #define rx_SecurityClassOf(conn) ((conn)->securityIndex)
114 #define rx_SecurityObjectOf(conn) ((conn)->securityObject)
117 rx_IsLoopbackAddr(afs_uint32 addr)
119 return ((addr & 0xffff0000) == 0x7f000000);
123 * Macros callable by the user to further define attributes of a
124 * service. Must be called before rx_StartServer
127 /* Set the service stack size. This currently just sets the stack
128 * size for all processes to be the maximum seen, so far */
129 #define rx_SetStackSize(service, stackSize) \
130 rx_stackSize = (((stackSize) > rx_stackSize)? stackSize: rx_stackSize)
132 /* Set minimum number of processes guaranteed to be available for this
133 * service at all times */
134 #define rx_SetMinProcs(service, min) ((service)->minProcs = (min))
136 /* Set maximum number of processes that will be made available to this
137 * service (also a guarantee that this number will be made available
138 * if there is no competition) */
139 #define rx_SetMaxProcs(service, max) ((service)->maxProcs = (max))
141 /* Define a procedure to be called just before a server connection is destroyed */
142 #define rx_SetDestroyConnProc(service,proc) ((service)->destroyConnProc = (proc))
144 /* Define procedure to set service dead time */
145 #define rx_SetIdleDeadTime(service,time) ((service)->idleDeadTime = (time))
147 /* Define error to return in server connections when failing to answer */
148 #define rx_SetServerIdleDeadErr(service,err) ((service)->idleDeadErr = (err))
150 /* Define procedures for getting and setting before and after execute-request procs */
151 #define rx_SetAfterProc(service,proc) ((service)->afterProc = (proc))
152 #define rx_SetBeforeProc(service,proc) ((service)->beforeProc = (proc))
153 #define rx_GetAfterProc(service) ((service)->afterProc)
154 #define rx_GetBeforeProc(service) ((service)->beforeProc)
155 #define rx_SetPostProc(service,proc) ((service)->postProc = (proc))
156 #define rx_GetPostProc(service) ((service)->postProc)
158 /* Define a procedure to be called when a server connection is created */
159 #define rx_SetNewConnProc(service, proc) ((service)->newConnProc = (proc))
161 /* NOTE: We'll probably redefine the following three routines, again, sometime. */
163 /* Set the connection dead time for any connections created for this service (server only) */
164 #define rx_SetServiceDeadTime(service, seconds) ((service)->secondsUntilDead = (seconds))
166 /* Enable or disable asymmetric client checking for a service */
167 #define rx_SetCheckReach(service, x) ((service)->checkReach = (x))
169 #define rx_SetServerConnIdleDeadErr(conn,err) ((conn)->idleDeadErr = (err))
171 /* Set the overload threshold and the overload error */
172 #define rx_SetBusyThreshold(threshold, code) (rx_BusyThreshold=(threshold),rx_BusyError=(code))
174 /* Set the error to use for retrying a connection during MTU tuning */
175 #define rx_SetMsgsizeRetryErr(conn, err) ((conn)->msgsizeRetryErr = (err))
177 /* If this flag is set,no new requests are processed by rx, all new requests are
178 returned with an error code of RX_CALL_DEAD ( transient error ) */
179 #define rx_SetRxTranquil() (rx_tranquil = 1)
180 #define rx_ClearRxTranquil() (rx_tranquil = 0)
182 /* Set the threshold and time to delay aborts for consecutive errors */
183 #define rx_SetCallAbortThreshold(A) (rxi_callAbortThreshhold = (A))
184 #define rx_SetCallAbortDelay(A) (rxi_callAbortDelay = (A))
185 #define rx_SetConnAbortThreshold(A) (rxi_connAbortThreshhold = (A))
186 #define rx_SetConnAbortDelay(A) (rxi_connAbortDelay = (A))
188 #define rx_GetCallAbortCode(call) ((call)->abortCode)
189 #define rx_SetCallAbortCode(call, code) ((call)->abortCode = (code))
191 #define cpspace(call) ((call)->curlen)
192 #define cppos(call) ((call)->curpos)
194 #define rx_Read(call, buf, nbytes) rx_ReadProc(call, buf, nbytes)
195 #define rx_Read32(call, value) rx_ReadProc32(call, value)
196 #define rx_Readv(call, iov, nio, maxio, nbytes) \
197 rx_ReadvProc(call, iov, nio, maxio, nbytes)
198 #define rx_Write(call, buf, nbytes) rx_WriteProc(call, buf, nbytes)
199 #define rx_Write32(call, value) rx_WriteProc32(call, value)
200 #define rx_Writev(call, iov, nio, nbytes) \
201 rx_WritevProc(call, iov, nio, nbytes)
203 /* This is the maximum size data packet that can be sent on this connection, accounting for security module-specific overheads. */
204 #define rx_MaxUserDataSize(call) ((call)->MTU - RX_HEADER_SIZE - (call)->conn->securityHeaderSize - (call)->conn->securityMaxTrailerSize)
206 /* Macros to turn the hot thread feature on and off. Enabling hot threads
207 * allows the listener thread to trade places with an idle worker thread,
208 * which moves the context switch from listener to worker out of the
211 #define rx_EnableHotThread() (rx_enable_hot_thread = 1)
212 #define rx_DisableHotThread() (rx_enable_hot_thread = 0)
214 #define rx_PutConnection(conn) rx_DestroyConnection(conn)
216 /* A connection is an authenticated communication path, allowing
217 limited multiple asynchronous conversations. */
219 struct rx_connection_rx_lock {
220 struct rx_connection_rx_lock *next; /* on hash chain _or_ free list */
221 struct rx_peer_rx_lock *peer;
223 struct rx_connection {
224 struct rx_connection *next; /* on hash chain _or_ free list */
225 struct rx_peer *peer;
227 #ifdef RX_ENABLE_LOCKS
228 afs_kmutex_t conn_call_lock; /* locks conn_call_cv */
229 afs_kcondvar_t conn_call_cv;
230 afs_kmutex_t conn_data_lock; /* locks packet data */
232 afs_uint32 epoch; /* Process start time of client side of connection */
233 afs_uint32 cid; /* Connection id (call channel is bottom bits) */
234 afs_int32 error; /* If this connection is in error, this is it */
236 struct rx_call_rx_lock *call[RX_MAXCALLS];
238 struct rx_call *call[RX_MAXCALLS];
240 afs_uint32 callNumber[RX_MAXCALLS]; /* Current call numbers */
241 afs_uint32 rwind[RX_MAXCALLS];
242 u_short twind[RX_MAXCALLS];
243 afs_uint32 lastBusy[RX_MAXCALLS]; /* timestamp of the last time we got an
244 * RX_PACKET_TYPE_BUSY packet for this
245 * call slot, or 0 if the slot is not busy */
246 afs_uint32 serial; /* Next outgoing packet serial number */
247 afs_uint32 lastSerial; /* # of last packet received, for computing skew */
248 afs_int32 lastPacketSize; /* last >max attempt */
249 afs_int32 lastPacketSizeSeq; /* seq number of attempt */
250 afs_int32 lastPingSize; /* last MTU ping attempt */
251 afs_int32 lastPingSizeSer; /* serial of last MTU ping attempt */
252 struct rxevent *challengeEvent; /* Scheduled when the server is challenging a */
253 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
254 struct rxevent *checkReachEvent; /* Scheduled when checking reachability */
255 int abortCount; /* count of abort messages sent */
256 /* client-- to retransmit the challenge */
257 struct rx_service *service; /* used by servers only */
258 u_short serviceId; /* To stamp on requests (clients only) */
259 afs_uint32 refCount; /* Reference count (rx_refcnt_mutex) */
260 u_char flags; /* Defined below - (conn_data_lock) */
261 u_char type; /* Type of connection, defined below */
262 u_char secondsUntilPing; /* how often to ping for each active call */
263 u_char securityIndex; /* corresponds to the security class of the */
264 /* securityObject for this conn */
265 struct rx_securityClass *securityObject; /* Security object for this connection */
266 void *securityData; /* Private data for this conn's security class */
267 u_short securityHeaderSize; /* Length of security module's packet header data */
268 u_short securityMaxTrailerSize; /* Length of security module's packet trailer data */
270 int timeout; /* Overall timeout per call (seconds) for this conn */
271 int lastSendTime; /* Last send time for this connection */
272 u_short secondsUntilDead; /* Maximum silence from peer before RX_CALL_DEAD */
273 u_short hardDeadTime; /* hard max for call execution */
274 u_short idleDeadTime; /* max time a call can be idle (no data) */
275 u_char ackRate; /* how many packets between ack requests */
276 u_char makeCallWaiters; /* how many rx_NewCalls are waiting */
277 afs_int32 idleDeadErr;
278 afs_int32 secondsUntilNatPing; /* how often to ping conn */
279 struct rxevent *natKeepAliveEvent; /* Scheduled to keep connection open */
280 afs_int32 msgsizeRetryErr;
281 int nSpecific; /* number entries in specific data */
282 void **specific; /* pointer to connection specific data */
286 /* A service is installed by rx_NewService, and specifies a service type that
287 * is exported by this process. Incoming calls are stamped with the service
288 * type, and must match an installed service for the call to be accepted.
289 * Each service exported has a (port,serviceId) pair to uniquely identify it.
290 * It is also named: this is intended to allow a remote statistics gathering
291 * program to retrieve per service statistics without having to know the local
292 * service id's. Each service has a number of
295 /* security objects (instances of security classes) which implement
296 * various types of end-to-end security protocols for connections made
297 * to this service. Finally, there are two parameters controlling the
298 * number of requests which may be executed in parallel by this
299 * service: minProcs is the number of requests to this service which
300 * are guaranteed to be able to run in parallel at any time; maxProcs
301 * has two meanings: it limits the total number of requests which may
302 * execute in parallel and it also guarantees that that many requests
303 * may be handled in parallel if no other service is handling any
307 u_short serviceId; /* Service number */
308 afs_uint32 serviceHost; /* IP address for this service */
309 u_short servicePort; /* UDP port for this service */
310 char *serviceName; /* Name of the service */
311 osi_socket socket; /* socket structure or file descriptor */
312 u_short nRequestsRunning; /* Number of requests currently in progress */
313 u_short nSecurityObjects; /* Number of entries in security objects array */
314 struct rx_securityClass **securityObjects; /* Array of security class objects */
315 afs_int32(*executeRequestProc) (struct rx_call * acall); /* Routine to call when an rpc request is received */
316 void (*destroyConnProc) (struct rx_connection * tcon); /* Routine to call when a server connection is destroyed */
317 void (*newConnProc) (struct rx_connection * tcon); /* Routine to call when a server connection is created */
318 void (*beforeProc) (struct rx_call * acall); /* routine to call before a call is executed */
319 void (*afterProc) (struct rx_call * acall, afs_int32 code); /* routine to call after a call is executed */
320 void (*postProc) (afs_int32 code); /* routine to call after the call has ended */
321 u_short maxProcs; /* Maximum procs to be used for this service */
322 u_short minProcs; /* Minimum # of requests guaranteed executable simultaneously */
323 u_short connDeadTime; /* Seconds until a client of this service will be declared dead, if it is not responding */
324 u_short idleDeadTime; /* Time a server will wait for I/O to start up again */
325 u_char checkReach; /* Check for asymmetric clients? */
326 afs_int32 idleDeadErr;
327 int nSpecific; /* number entries in specific data */
328 void **specific; /* pointer to connection specific data */
329 #ifdef RX_ENABLE_LOCKS
330 afs_kmutex_t svc_data_lock; /* protect specific data */
335 #endif /* KDUMP_RX_LOCK */
337 /* A server puts itself on an idle queue for a service using an
338 * instance of the following structure. When a call arrives, the call
339 * structure pointer is placed in "newcall", the routine to execute to
340 * service the request is placed in executeRequestProc, and the
341 * process is woken up. The queue entry's address is used for the
342 * sleep/wakeup. If socketp is non-null, then this thread is willing
343 * to become a listener thread. A thread sets *socketp to -1 before
344 * sleeping. If *socketp is not -1 when the thread awakes, it is now
345 * the listener thread for *socketp. When socketp is non-null, tno
346 * contains the server's threadID, which is used to make decitions in GetCall.
349 struct rx_serverQueueEntry_rx_lock {
351 struct rx_serverQueueEntry {
353 struct rx_queue queueItemHeader;
355 struct rx_call_rx_lock *newcall;
357 struct rx_call *newcall;
359 #ifdef RX_ENABLE_LOCKS
368 /* A peer refers to a peer process, specified by a (host,port) pair. There may be more than one peer on a given host. */
370 struct rx_peer_rx_lock {
371 struct rx_peer_rx_lock *next; /* Next in hash conflict or free list */
374 struct rx_peer *next; /* Next in hash conflict or free list */
376 #ifdef RX_ENABLE_LOCKS
377 afs_kmutex_t peer_lock; /* Lock peer */
378 #endif /* RX_ENABLE_LOCKS */
379 afs_uint32 host; /* Remote IP address, in net byte order */
380 u_short port; /* Remote UDP port, in net byte order */
382 /* interface mtu probably used for this host - includes RX Header */
383 u_short ifMTU; /* doesn't include IP header */
385 /* For garbage collection */
386 afs_uint32 idleWhen; /* When the refcountwent to zero */
387 afs_uint32 refCount; /* Reference count for this structure (rx_peerHashTable_lock) */
389 /* Congestion control parameters */
390 u_char burstSize; /* Reinitialization size for the burst parameter */
391 u_char burst; /* Number of packets that can be transmitted right now, without pausing */
392 struct clock burstWait; /* Delay until new burst is allowed */
393 struct rx_queue congestionQueue; /* Calls that are waiting for non-zero burst value */
394 int rtt; /* Smoothed round trip time, measured in milliseconds/8 */
395 int rtt_dev; /* Smoothed rtt mean difference, in milliseconds/4 */
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 */
407 /* the "natural" MTU, excluding IP,UDP headers, is negotiated by the endpoints */
410 /* negotiated maximum number of packets to send in a single datagram. */
411 u_short maxDgramPackets;
412 /* local maximum number of packets to send in a single datagram. */
413 u_short ifDgramPackets;
415 * MTU, cwind, and nDgramPackets are used to initialize
416 * slow start parameters for new calls. These values are set whenever a
417 * call sends a retransmission and at the end of each call.
418 * congestSeq is incremented each time the congestion parameters are
419 * changed by a call recovering from a dropped packet. A call used
420 * MAX when updating congestion parameters if it started with the
421 * current congestion sequence number, otherwise it uses MIN.
423 u_short MTU; /* MTU for AFS 3.4a jumboGrams */
424 u_short cwind; /* congestion window */
425 u_short nDgramPackets; /* number packets per AFS 3.5 jumbogram */
426 u_short congestSeq; /* Changed when a call retransmits */
427 afs_hyper_t bytesSent; /* Number of bytes sent to this peer */
428 afs_hyper_t bytesReceived; /* Number of bytes received from this peer */
429 struct rx_queue rpcStats; /* rpc statistic list */
430 int lastReachTime; /* Last time we verified reachability */
431 afs_int32 maxPacketSize; /* peer packetsize hint */
434 #ifndef KDUMP_RX_LOCK
435 /* Flag bits for connection structure */
436 #define RX_CONN_MAKECALL_WAITING 1 /* rx_NewCall is waiting for a channel */
437 #define RX_CONN_DESTROY_ME 2 /* Destroy *client* connection after last call */
438 #define RX_CONN_USING_PACKET_CKSUM 4 /* non-zero header.spare field seen */
439 #define RX_CONN_KNOW_WINDOW 8 /* window size negotiation works */
440 #define RX_CONN_RESET 16 /* connection is reset, remove */
441 #define RX_CONN_BUSY 32 /* connection is busy; don't delete */
442 #define RX_CONN_ATTACHWAIT 64 /* attach waiting for peer->lastReach */
443 #define RX_CONN_MAKECALL_ACTIVE 128 /* a thread is actively in rx_NewCall */
444 #define RX_CONN_NAT_PING 256 /* nat ping requested */
446 /* Type of connection, client or server */
447 #define RX_CLIENT_CONNECTION 0
448 #define RX_SERVER_CONNECTION 1
449 #endif /* !KDUMP_RX_LOCK */
451 /* Maximum number of acknowledgements in an acknowledge packet */
452 #define RX_MAXACKS 255
454 /* 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. */
456 struct rx_call_rx_lock {
460 struct rx_queue queue_item_header; /* Call can be on various queues (one-at-a-time) */
461 struct rx_queue tq; /* Transmit packet queue */
462 struct rx_queue rq; /* Receive packet queue */
464 * The following fields are accessed while the call is unlocked.
465 * These fields are used by the caller/server thread to marshall
466 * and unmarshall RPC data. The only time they may be changed by
467 * other threads is when the RX_CALL_IOVEC_WAIT flag is set.
469 * NOTE: Be sure that these fields start and end on a double
470 * word boundary. Otherwise threads that are changing
471 * adjacent fields will cause problems.
473 struct rx_queue iovq; /* readv/writev packet queue */
474 u_short nLeft; /* Number bytes left in first receive packet */
475 u_short curvec; /* current iovec in currentPacket */
476 u_short curlen; /* bytes remaining in curvec */
477 u_short nFree; /* Number bytes free in last send packet */
478 struct rx_packet *currentPacket; /* Current packet being assembled or being read */
479 char *curpos; /* current position in curvec */
481 * End of fields accessed with call unlocked
483 u_char channel; /* Index of call, within connection */
484 u_char state; /* Current call state as defined below */
485 u_char mode; /* Current mode of a call in ACTIVE state */
486 #ifdef RX_ENABLE_LOCKS
487 afs_kmutex_t lock; /* lock covers data as well as mutexes. */
488 afs_kmutex_t *call_queue_lock; /* points to lock for queue we're on,
490 afs_kcondvar_t cv_twind;
491 afs_kcondvar_t cv_rq;
492 afs_kcondvar_t cv_tq;
495 struct rx_connection_rx_lock *conn; /* Parent connection for call */
497 struct rx_connection *conn; /* Parent connection for this call */
499 afs_uint32 *callNumber; /* Pointer to call number field within connection */
500 afs_uint32 flags; /* Some random flags */
501 u_char localStatus; /* Local user status sent out of band */
502 u_char remoteStatus; /* Remote user status received out of band */
503 afs_int32 error; /* Error condition for this call */
504 afs_uint32 timeout; /* High level timeout for this call */
505 afs_uint32 rnext; /* Next sequence number expected to be read by rx_ReadData */
506 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 */
507 afs_uint32 rwind; /* The receive window: the peer must not send packets with sequence numbers >= rnext+rwind */
508 afs_uint32 tfirst; /* First unacknowledged transmit packet number */
509 afs_uint32 tnext; /* Next transmit sequence number to use */
510 afs_uint32 tprev; /* Last packet that we saw an ack for */
511 u_short twind; /* The transmit window: we cannot assign a sequence number to a packet >= tfirst + twind */
512 u_short cwind; /* The congestion window */
513 u_short nSoftAcked; /* Number soft acked transmit packets */
514 u_short nextCwind; /* The congestion window after recovery */
515 u_short nCwindAcks; /* Number acks received at current cwind */
516 u_short ssthresh; /* The slow start threshold */
517 u_short nDgramPackets; /* Packets per AFS 3.5 jumbogram */
518 u_short nAcks; /* The number of consecutive acks */
519 u_short nNacks; /* Number packets acked that follow the
520 * first negatively acked packet */
521 u_short nSoftAcks; /* The number of delayed soft acks */
522 u_short nHardAcks; /* The number of delayed hard acks */
523 u_short congestSeq; /* Peer's congestion sequence counter */
526 struct clock rto; /* The round trip timeout calculated for this call */
527 struct rxevent *resendEvent; /* If this is non-Null, there is a retransmission event pending */
528 struct rxevent *timeoutEvent; /* If this is non-Null, then there is an overall timeout for this call */
529 struct rxevent *keepAliveEvent; /* Scheduled periodically in active calls to keep call alive */
530 struct rxevent *growMTUEvent; /* Scheduled periodically in active calls to discover true maximum MTU */
531 struct rxevent *delayedAckEvent; /* Scheduled after all packets are received to send an ack if a reply or new call is not generated soon */
532 struct clock delayedAckTime; /* Time that next delayed ack was scheduled for */
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. (rx_refcnt_lock) */
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 struct rx_packet *xmitList[RX_MAXACKS]; /* Can't xmit more than we ack */
584 /* Protected by setting RX_CALL_TQ_BUSY */
585 #ifdef RXDEBUG_PACKET
586 u_short tqc; /* packet count in tq */
587 u_short rqc; /* packet count in rq */
588 u_short iovqc; /* packet count in iovq */
591 struct rx_call_rx_lock *allNextp;
593 struct rx_call *allNextp;
599 #ifndef KDUMP_RX_LOCK
600 /* Major call states */
601 #define RX_STATE_NOTINIT 0 /* Call structure has never been initialized */
602 #define RX_STATE_PRECALL 1 /* Server-only: call is not in progress, but packets have arrived */
603 #define RX_STATE_ACTIVE 2 /* An active call; a process is dealing with this call */
604 #define RX_STATE_DALLY 3 /* Dallying after process is done with call */
605 #define RX_STATE_HOLD 4 /* Waiting for acks on reply data packets */
606 #define RX_STATE_RESET 5 /* Call is being reset */
608 /* Call modes: the modes of a call in RX_STATE_ACTIVE state (process attached) */
609 #define RX_MODE_SENDING 1 /* Sending or ready to send */
610 #define RX_MODE_RECEIVING 2 /* Receiving or ready to receive */
611 #define RX_MODE_ERROR 3 /* Something in error for current conversation */
612 #define RX_MODE_EOF 4 /* Server has flushed (or client has read) last reply packet */
615 #define RX_CALL_READER_WAIT 1 /* Reader is waiting for next packet */
616 #define RX_CALL_WAIT_WINDOW_ALLOC 2 /* Sender is waiting for window to allocate buffers */
617 #define RX_CALL_WAIT_WINDOW_SEND 4 /* Sender is waiting for window to send buffers */
618 #define RX_CALL_WAIT_PACKETS 8 /* Sender is waiting for packet buffers */
619 #define RX_CALL_WAIT_PROC 16 /* Waiting for a process to be assigned */
620 #define RX_CALL_RECEIVE_DONE 32 /* All packets received on this call */
621 #define RX_CALL_CLEARED 64 /* Receive queue cleared in precall state */
622 #define RX_CALL_TQ_BUSY 128 /* Call's Xmit Queue is busy; don't modify */
623 #define RX_CALL_TQ_CLEARME 256 /* Need to clear this call's TQ later */
624 #define RX_CALL_TQ_SOME_ACKED 512 /* rxi_Start needs to discard ack'd packets. */
625 #define RX_CALL_TQ_WAIT 1024 /* Reader is waiting for TQ_BUSY to be reset */
626 #define RX_CALL_FAST_RECOVER 2048 /* call is doing congestion recovery */
627 /* 4096 was RX_CALL_FAST_RECOVER_WAIT */
628 #define RX_CALL_SLOW_START_OK 8192 /* receiver acks every other packet */
629 #define RX_CALL_IOVEC_WAIT 16384 /* waiting thread is using an iovec */
630 #define RX_CALL_HAVE_LAST 32768 /* Last packet has been received */
631 #define RX_CALL_NEED_START 0x10000 /* tells rxi_Start to start again */
632 #define RX_CALL_PEER_BUSY 0x20000 /* the last packet we received on this call was a
633 * BUSY packet; i.e. the channel for this call is busy */
634 #define RX_CALL_ACKALL_SENT 0x40000 /* ACKALL has been sent on the call */
637 /* The structure of the data portion of an acknowledge packet: An acknowledge
638 * packet is in network byte order at all times. An acknowledgement is always
639 * prompted for a specific reason by a specific incoming packet. This reason
640 * is reported in "reason" and the packet's sequence number in the packet
641 * header.seq. In addition to this information, all of the current
642 * acknowledgement information about this call is placed in the packet.
643 * "FirstPacket" is the sequence number of the first packet represented in an
644 * array of bytes, "acks", containing acknowledgement information for a number
645 * of consecutive packets. All packets prior to FirstPacket are implicitly
646 * acknowledged: the sender need no longer be concerned about them. Packets
647 * from firstPacket+nAcks and on are not acknowledged. Packets in the range
648 * [firstPacket,firstPacket+nAcks) are each acknowledged explicitly. The
649 * acknowledgement may be RX_NACK if the packet is not (currently) at the
650 * receiver (it may have never been received, or received and then later
651 * dropped), or it may be RX_ACK if the packet is queued up waiting to be read
652 * by the upper level software. RX_ACK does not imply that the packet may not
653 * be dropped before it is read; it does imply that the sender should stop
654 * retransmitting the packet until notified otherwise. The field
655 * previousPacket identifies the previous packet received by the peer. This
656 * was used in a previous version of this software, and could be used in the
657 * future. The serial number in the data part of the ack packet corresponds to
658 * the serial number oof the packet which prompted the acknowledge. Any
659 * packets which are explicitly not acknowledged, and which were last
660 * transmitted with a serial number less than the provided serial number,
661 * should be retransmitted immediately. Actually, this is slightly inaccurate:
662 * packets are not necessarily received in order. When packets are habitually
663 * transmitted out of order, this is allowed for in the retransmission
664 * algorithm by introducing the notion of maximum packet skew: the degree of
665 * out-of-orderness of the packets received on the wire. This number is
666 * communicated from the receiver to the sender in ack packets. */
668 struct rx_ackPacket {
669 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. */
670 u_short maxSkew; /* Maximum difference between serial# of packet acknowledged and highest packet yet received */
671 afs_uint32 firstPacket; /* The first packet in the list of acknowledged packets */
672 afs_uint32 previousPacket; /* The previous packet number received (obsolete?) */
673 afs_uint32 serial; /* Serial number of the packet which prompted the acknowledge */
674 u_char reason; /* Reason for the acknowledge of ackPacket, defined below */
675 u_char nAcks; /* Number of acknowledgements */
676 u_char acks[RX_MAXACKS]; /* Up to RX_MAXACKS packet acknowledgements, defined below */
677 /* 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) */
680 #define FIRSTACKOFFSET 4
682 /* Reason for acknowledge message */
683 #define RX_ACK_REQUESTED 1 /* Peer requested an ack on this packet */
684 #define RX_ACK_DUPLICATE 2 /* Duplicate packet */
685 #define RX_ACK_OUT_OF_SEQUENCE 3 /* Packet out of sequence */
686 #define RX_ACK_EXCEEDS_WINDOW 4 /* Packet sequence number higher than window; discarded */
687 #define RX_ACK_NOSPACE 5 /* No buffer space at all */
688 #define RX_ACK_PING 6 /* This is a keep-alive ack */
689 #define RX_ACK_PING_RESPONSE 7 /* Ack'ing because we were pinged */
690 #define RX_ACK_DELAY 8 /* Ack generated since nothing has happened since receiving packet */
691 #define RX_ACK_IDLE 9 /* Similar to RX_ACK_DELAY, but can
692 * be used to compute RTT */
693 #define RX_ACK_MTU -1 /* will be rewritten to ACK_PING */
695 /* Packet acknowledgement type */
696 #define RX_ACK_TYPE_NACK 0 /* I Don't have this packet */
697 #define RX_ACK_TYPE_ACK 1 /* I have this packet, although I may discard it later */
699 /* The packet size transmitted for an acknowledge is adjusted to reflect the actual size of the acks array. This macro defines the size */
700 #define rx_AckDataSize(nAcks) (3 + nAcks + offsetof(struct rx_ackPacket, acks[0]))
702 #define RX_CHALLENGE_TIMEOUT 2 /* Number of seconds before another authentication request packet is generated */
703 #define RX_CHALLENGE_MAXTRIES 50 /* Max # of times we resend challenge */
704 #define RX_CHECKREACH_TIMEOUT 2 /* Number of seconds before another ping is generated */
705 #define RX_CHECKREACH_TTL 60 /* Re-check reachability this often */
707 /* 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 */
709 /* Something bad happened to the connection; temporary loss of communication */
710 #define RX_CALL_DEAD (-1)
712 /* An invalid operation, such as a client attempting to send data after having received the beginning of a reply from the server */
713 #define RX_INVALID_OPERATION (-2)
715 /* An optional timeout per call may be specified */
716 #define RX_CALL_TIMEOUT (-3)
718 /* End of data on a read */
721 /* Some sort of low-level protocol error */
722 #define RX_PROTOCOL_ERROR (-5)
724 /* 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 */
725 #define RX_USER_ABORT (-6)
727 /* Port already in use (from rx_Init) */
728 #define RX_ADDRINUSE (-7)
730 /* EMSGSIZE returned from network. Packet too big, must fragment */
731 #define RX_MSGSIZE (-8)
733 /* transient failure detected ( possibly the server is restarting ) */
734 /* this shud be equal to VRESTARTING ( util/errors.h ) for old clients to work */
735 #define RX_RESTARTING (-100)
744 struct rx_securityObjectStats {
745 char type; /* 0:unk 1:null,2:vab 3:kad */
747 char sparec[10]; /* force correct alignment */
748 afs_int32 flags; /* 1=>unalloc, 2=>auth, 4=>expired */
750 afs_uint32 packetsReceived;
751 afs_uint32 packetsSent;
752 afs_uint32 bytesReceived;
753 afs_uint32 bytesSent;
758 /* Configuration settings */
760 /* Enum for storing configuration variables which can be set via the
761 * SetConfiguration method in the rx_securityClass, below
765 RXS_CONFIG_FLAGS /* afs_uint32 set of bitwise flags */
766 } rx_securityConfigVariables;
768 /* For the RXS_CONFIG_FLAGS, the following bit values are defined */
770 /* Disable the principal name contains dot check in rxkad */
771 #define RXS_CONFIG_FLAGS_DISABLE_DOTCHECK 0x01
773 /* XXXX (rewrite this description) A security class object contains a set of
774 * procedures and some private data to implement a security model for rx
775 * connections. These routines are called by rx as appropriate. Rx knows
776 * nothing about the internal details of any particular security model, or
777 * about security state. Rx does maintain state per connection on behalf of
778 * the security class. Each security class implementation is also expected to
779 * provide routines to create these objects. Rx provides a basic routine to
780 * allocate one of these objects; this routine must be called by the class. */
781 struct rx_securityClass {
782 struct rx_securityOps {
783 int (*op_Close) (struct rx_securityClass * aobj);
784 int (*op_NewConnection) (struct rx_securityClass * aobj,
785 struct rx_connection * aconn);
786 int (*op_PreparePacket) (struct rx_securityClass * aobj,
787 struct rx_call * acall,
788 struct rx_packet * apacket);
789 int (*op_SendPacket) (struct rx_securityClass * aobj,
790 struct rx_call * acall,
791 struct rx_packet * apacket);
792 int (*op_CheckAuthentication) (struct rx_securityClass * aobj,
793 struct rx_connection * aconn);
794 int (*op_CreateChallenge) (struct rx_securityClass * aobj,
795 struct rx_connection * aconn);
796 int (*op_GetChallenge) (struct rx_securityClass * aobj,
797 struct rx_connection * aconn,
798 struct rx_packet * apacket);
799 int (*op_GetResponse) (struct rx_securityClass * aobj,
800 struct rx_connection * aconn,
801 struct rx_packet * apacket);
802 int (*op_CheckResponse) (struct rx_securityClass * aobj,
803 struct rx_connection * aconn,
804 struct rx_packet * apacket);
805 int (*op_CheckPacket) (struct rx_securityClass * aobj,
806 struct rx_call * acall,
807 struct rx_packet * apacket);
808 int (*op_DestroyConnection) (struct rx_securityClass * aobj,
809 struct rx_connection * aconn);
810 int (*op_GetStats) (struct rx_securityClass * aobj,
811 struct rx_connection * aconn,
812 struct rx_securityObjectStats * astats);
813 int (*op_SetConfiguration) (struct rx_securityClass * aobj,
814 struct rx_connection * aconn,
815 rx_securityConfigVariables atype,
817 void ** acurrentValue);
818 int (*op_Spare2) (void);
819 int (*op_Spare3) (void);
825 #define RXS_OP(obj,op,args) ((obj && (obj->ops->op_ ## op)) ? (*(obj)->ops->op_ ## op)args : 0)
827 #define RXS_Close(obj) RXS_OP(obj,Close,(obj))
828 #define RXS_NewConnection(obj,conn) RXS_OP(obj,NewConnection,(obj,conn))
829 #define RXS_PreparePacket(obj,call,packet) RXS_OP(obj,PreparePacket,(obj,call,packet))
830 #define RXS_SendPacket(obj,call,packet) RXS_OP(obj,SendPacket,(obj,call,packet))
831 #define RXS_CheckAuthentication(obj,conn) RXS_OP(obj,CheckAuthentication,(obj,conn))
832 #define RXS_CreateChallenge(obj,conn) RXS_OP(obj,CreateChallenge,(obj,conn))
833 #define RXS_GetChallenge(obj,conn,packet) RXS_OP(obj,GetChallenge,(obj,conn,packet))
834 #define RXS_GetResponse(obj,conn,packet) RXS_OP(obj,GetResponse,(obj,conn,packet))
835 #define RXS_CheckResponse(obj,conn,packet) RXS_OP(obj,CheckResponse,(obj,conn,packet))
836 #define RXS_CheckPacket(obj,call,packet) RXS_OP(obj,CheckPacket,(obj,call,packet))
837 #define RXS_DestroyConnection(obj,conn) RXS_OP(obj,DestroyConnection,(obj,conn))
838 #define RXS_GetStats(obj,conn,stats) RXS_OP(obj,GetStats,(obj,conn,stats))
839 #define RXS_SetConfiguration(obj, conn, type, value, currentValue) RXS_OP(obj, SetConfiguration,(obj,conn,type,value,currentValue))
842 /* Structure for keeping rx statistics. Note that this structure is returned
843 * by rxdebug, so, for compatibility reasons, new fields should be appended (or
844 * spares used), the rxdebug protocol checked, if necessary, and the PrintStats
845 * code should be updated as well.
847 * Clearly we assume that ntohl will work on these structures so sizeof(int)
848 * must equal sizeof(afs_int32). */
850 struct rx_statistics { /* General rx statistics */
851 int packetRequests; /* Number of packet allocation requests */
852 int receivePktAllocFailures;
853 int sendPktAllocFailures;
854 int specialPktAllocFailures;
855 int socketGreedy; /* Whether SO_GREEDY succeeded */
856 int bogusPacketOnRead; /* Number of inappropriately short packets received */
857 int bogusHost; /* Host address from bogus packets */
858 int noPacketOnRead; /* Number of read packets attempted when there was actually no packet to read off the wire */
859 int noPacketBuffersOnRead; /* Number of dropped data packets due to lack of packet buffers */
860 int selects; /* Number of selects waiting for packet or timeout */
861 int sendSelects; /* Number of selects forced when sending packet */
862 int packetsRead[RX_N_PACKET_TYPES]; /* Total number of packets read, per type */
863 int dataPacketsRead; /* Number of unique data packets read off the wire */
864 int ackPacketsRead; /* Number of ack packets read */
865 int dupPacketsRead; /* Number of duplicate data packets read */
866 int spuriousPacketsRead; /* Number of inappropriate data packets */
867 int packetsSent[RX_N_PACKET_TYPES]; /* Number of rxi_Sends: packets sent over the wire, per type */
868 int ackPacketsSent; /* Number of acks sent */
869 int pingPacketsSent; /* Total number of ping packets sent */
870 int abortPacketsSent; /* Total number of aborts */
871 int busyPacketsSent; /* Total number of busies sent received */
872 int dataPacketsSent; /* Number of unique data packets sent */
873 int dataPacketsReSent; /* Number of retransmissions */
874 int dataPacketsPushed; /* Number of retransmissions pushed early by a NACK */
875 int ignoreAckedPacket; /* Number of packets with acked flag, on rxi_Start */
876 struct clock totalRtt; /* Total round trip time measured (use to compute average) */
877 struct clock minRtt; /* Minimum round trip time measured */
878 struct clock maxRtt; /* Maximum round trip time measured */
879 int nRttSamples; /* Total number of round trip samples */
880 int nServerConns; /* Total number of server connections */
881 int nClientConns; /* Total number of client connections */
882 int nPeerStructs; /* Total number of peer structures */
883 int nCallStructs; /* Total number of call structures allocated */
884 int nFreeCallStructs; /* Total number of previously allocated free call structures */
886 afs_int32 fatalErrors;
887 int ignorePacketDally; /* packets dropped because call is in dally state */
888 int receiveCbufPktAllocFailures;
889 int sendCbufPktAllocFailures;
894 /* structures for debug input and output packets */
896 /* debug input types */
902 /* Invalid rx debug package type */
903 #define RX_DEBUGI_BADTYPE (-8)
905 #define RX_DEBUGI_VERSION_MINIMUM ('L') /* earliest real version */
906 #define RX_DEBUGI_VERSION ('S') /* Latest version */
907 /* first version w/ secStats */
908 #define RX_DEBUGI_VERSION_W_SECSTATS ('L')
909 /* version M is first supporting GETALLCONN and RXSTATS type */
910 #define RX_DEBUGI_VERSION_W_GETALLCONN ('M')
911 #define RX_DEBUGI_VERSION_W_RXSTATS ('M')
912 /* last version with unaligned debugConn */
913 #define RX_DEBUGI_VERSION_W_UNALIGNED_CONN ('L')
914 #define RX_DEBUGI_VERSION_W_WAITERS ('N')
915 #define RX_DEBUGI_VERSION_W_IDLETHREADS ('O')
916 #define RX_DEBUGI_VERSION_W_NEWPACKETTYPES ('P')
917 #define RX_DEBUGI_VERSION_W_GETPEER ('Q')
918 #define RX_DEBUGI_VERSION_W_WAITED ('R')
919 #define RX_DEBUGI_VERSION_W_PACKETS ('S')
921 #define RX_DEBUGI_GETSTATS 1 /* get basic rx stats */
922 #define RX_DEBUGI_GETCONN 2 /* get connection info */
923 #define RX_DEBUGI_GETALLCONN 3 /* get even uninteresting conns */
924 #define RX_DEBUGI_RXSTATS 4 /* get all rx stats */
925 #define RX_DEBUGI_GETPEER 5 /* get all peer structs */
927 struct rx_debugStats {
928 afs_int32 nFreePackets;
929 afs_int32 packetReclaims;
930 afs_int32 callsExecuted;
931 char waitingForPackets;
936 afs_int32 idleThreads; /* Number of server threads that are idle */
942 struct rx_debugConn_vL {
946 afs_int32 callNumber[RX_MAXCALLS];
952 char callState[RX_MAXCALLS];
953 char callMode[RX_MAXCALLS];
954 char callFlags[RX_MAXCALLS];
955 char callOther[RX_MAXCALLS];
956 /* old style getconn stops here */
957 struct rx_securityObjectStats secStats;
958 afs_int32 sparel[10];
961 struct rx_debugConn {
965 afs_int32 callNumber[RX_MAXCALLS];
971 char sparec[3]; /* force correct alignment */
972 char callState[RX_MAXCALLS];
973 char callMode[RX_MAXCALLS];
974 char callFlags[RX_MAXCALLS];
975 char callOther[RX_MAXCALLS];
976 /* old style getconn stops here */
977 struct rx_securityObjectStats secStats;
983 struct rx_debugPeer {
991 struct clock burstWait;
994 struct clock timeout;
997 afs_int32 inPacketSkew;
998 afs_int32 outPacketSkew;
1002 u_short maxDgramPackets;
1003 u_short ifDgramPackets;
1006 u_short nDgramPackets;
1008 afs_hyper_t bytesSent;
1009 afs_hyper_t bytesReceived;
1010 afs_int32 sparel[10];
1013 #define RX_OTHER_IN 1 /* packets avail in in queue */
1014 #define RX_OTHER_OUT 2 /* packets avail in out queue */
1018 /* Only include this once, even when re-loading for kdump. */
1019 #ifndef _CALL_REF_DEFINED_
1020 #define _CALL_REF_DEFINED_
1022 #ifdef RX_ENABLE_LOCKS
1023 #ifdef RX_REFCOUNT_CHECK
1024 /* RX_REFCOUNT_CHECK is used to test for call refcount leaks by event
1027 extern int rx_callHoldType;
1028 #define CALL_HOLD(call, type) do { \
1030 call->refCDebug[type]++; \
1031 if (call->refCDebug[type] > 50) {\
1032 rx_callHoldType = type; \
1033 osi_Panic("Huge call refCount"); \
1036 #define CALL_RELE(call, type) do { \
1038 call->refCDebug[type]--; \
1039 if (call->refCDebug[type] > 50) {\
1040 rx_callHoldType = type; \
1041 osi_Panic("Negative call refCount"); \
1044 #else /* RX_REFCOUNT_CHECK */
1045 #define CALL_HOLD(call, type) call->refCount++
1046 #define CALL_RELE(call, type) call->refCount--
1047 #endif /* RX_REFCOUNT_CHECK */
1049 #else /* RX_ENABLE_LOCKS */
1050 #define CALL_HOLD(call, type)
1051 #define CALL_RELE(call, type)
1052 #endif /* RX_ENABLE_LOCKS */
1054 #endif /* _CALL_REF_DEFINED_ */
1056 #define RX_SERVER_DEBUG_SEC_STATS 0x1
1057 #define RX_SERVER_DEBUG_ALL_CONN 0x2
1058 #define RX_SERVER_DEBUG_RX_STATS 0x4
1059 #define RX_SERVER_DEBUG_WAITER_CNT 0x8
1060 #define RX_SERVER_DEBUG_IDLE_THREADS 0x10
1061 #define RX_SERVER_DEBUG_OLD_CONN 0x20
1062 #define RX_SERVER_DEBUG_NEW_PACKETS 0x40
1063 #define RX_SERVER_DEBUG_ALL_PEER 0x80
1064 #define RX_SERVER_DEBUG_WAITED_CNT 0x100
1065 #define RX_SERVER_DEBUG_PACKETS_CNT 0x200
1067 #define AFS_RX_STATS_CLEAR_ALL 0xffffffff
1068 #define AFS_RX_STATS_CLEAR_INVOCATIONS 0x1
1069 #define AFS_RX_STATS_CLEAR_BYTES_SENT 0x2
1070 #define AFS_RX_STATS_CLEAR_BYTES_RCVD 0x4
1071 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SUM 0x8
1072 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SQUARE 0x10
1073 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MIN 0x20
1074 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MAX 0x40
1075 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SUM 0x80
1076 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SQUARE 0x100
1077 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MIN 0x200
1078 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MAX 0x400
1080 typedef struct rx_function_entry_v1 {
1081 afs_uint32 remote_peer;
1082 afs_uint32 remote_port;
1083 afs_uint32 remote_is_server;
1084 afs_uint32 interfaceId;
1085 afs_uint32 func_total;
1086 afs_uint32 func_index;
1087 afs_hyper_t invocations;
1088 afs_hyper_t bytes_sent;
1089 afs_hyper_t bytes_rcvd;
1090 struct clock queue_time_sum;
1091 struct clock queue_time_sum_sqr;
1092 struct clock queue_time_min;
1093 struct clock queue_time_max;
1094 struct clock execution_time_sum;
1095 struct clock execution_time_sum_sqr;
1096 struct clock execution_time_min;
1097 struct clock execution_time_max;
1098 } rx_function_entry_v1_t, *rx_function_entry_v1_p;
1101 * If you need to change rx_function_entry, you should probably create a brand
1102 * new structure. Keeping the old structure will allow backwards compatibility
1103 * with old clients (even if it is only used to calculate allocation size).
1104 * If you do change the size or the format, you'll need to bump
1105 * RX_STATS_RETRIEVAL_VERSION. This allows some primitive form
1106 * of versioning a la rxdebug.
1109 #define RX_STATS_RETRIEVAL_VERSION 1 /* latest version */
1110 #define RX_STATS_RETRIEVAL_FIRST_EDITION 1 /* first implementation */
1112 typedef struct rx_interface_stat {
1113 struct rx_queue queue_header;
1114 struct rx_queue all_peers;
1115 rx_function_entry_v1_t stats[1]; /* make sure this is aligned correctly */
1116 } rx_interface_stat_t, *rx_interface_stat_p;
1118 #define RX_STATS_SERVICE_ID 409
1121 extern int rx_DumpCalls(FILE *outputFile, char *cookie);
1124 #endif /* _RX_ End of rx.h */
1127 #include "rx/rx_prototypes.h"
1129 #include "rx_prototypes.h"
1132 #endif /* !KDUMP_RX_LOCK */
git://git.openafs.org / openafs.git / blob