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 #define rx_SetServerConnIdleDeadErr(conn,err) ((conn)->idleDeadErr = (err))
178 /* Set the overload threshold and the overload error */
179 #define rx_SetBusyThreshold(threshold, code) (rx_BusyThreshold=(threshold),rx_BusyError=(code))
181 /* Set the error to use for retrying a connection during MTU tuning */
182 #define rx_SetMsgsizeRetryErr(conn, err) ((conn)->msgsizeRetryErr = (err))
184 /* If this flag is set,no new requests are processed by rx, all new requests are
185 returned with an error code of RX_CALL_DEAD ( transient error ) */
186 #define rx_SetRxTranquil() (rx_tranquil = 1)
187 #define rx_ClearRxTranquil() (rx_tranquil = 0)
189 /* Set the threshold and time to delay aborts for consecutive errors */
190 #define rx_SetCallAbortThreshold(A) (rxi_callAbortThreshhold = (A))
191 #define rx_SetCallAbortDelay(A) (rxi_callAbortDelay = (A))
192 #define rx_SetConnAbortThreshold(A) (rxi_connAbortThreshhold = (A))
193 #define rx_SetConnAbortDelay(A) (rxi_connAbortDelay = (A))
195 #define rx_GetCallAbortCode(call) ((call)->abortCode)
196 #define rx_SetCallAbortCode(call, code) ((call)->abortCode = (code))
198 #define cpspace(call) ((call)->curlen)
199 #define cppos(call) ((call)->curpos)
201 #define rx_Read(call, buf, nbytes) rx_ReadProc(call, buf, nbytes)
202 #define rx_Read32(call, value) rx_ReadProc32(call, value)
203 #define rx_Readv(call, iov, nio, maxio, nbytes) \
204 rx_ReadvProc(call, iov, nio, maxio, nbytes)
205 #define rx_Write(call, buf, nbytes) rx_WriteProc(call, buf, nbytes)
206 #define rx_Write32(call, value) rx_WriteProc32(call, value)
207 #define rx_Writev(call, iov, nio, nbytes) \
208 rx_WritevProc(call, iov, nio, nbytes)
210 /* This is the maximum size data packet that can be sent on this connection, accounting for security module-specific overheads. */
211 #define rx_MaxUserDataSize(call) ((call)->MTU - RX_HEADER_SIZE - (call)->conn->securityHeaderSize - (call)->conn->securityMaxTrailerSize)
213 /* Macros to turn the hot thread feature on and off. Enabling hot threads
214 * allows the listener thread to trade places with an idle worker thread,
215 * which moves the context switch from listener to worker out of the
218 #define rx_EnableHotThread() (rx_enable_hot_thread = 1)
219 #define rx_DisableHotThread() (rx_enable_hot_thread = 0)
221 #define rx_PutConnection(conn) rx_DestroyConnection(conn)
223 /* A connection is an authenticated communication path, allowing
224 limited multiple asynchronous conversations. */
226 struct rx_connection_rx_lock {
227 struct rx_connection_rx_lock *next; /* on hash chain _or_ free list */
228 struct rx_peer_rx_lock *peer;
230 struct rx_connection {
231 struct rx_connection *next; /* on hash chain _or_ free list */
232 struct rx_peer *peer;
234 #ifdef RX_ENABLE_LOCKS
235 afs_kmutex_t conn_call_lock; /* locks conn_call_cv */
236 afs_kcondvar_t conn_call_cv;
237 afs_kmutex_t conn_data_lock; /* locks packet data */
239 afs_uint32 epoch; /* Process start time of client side of connection */
240 afs_uint32 cid; /* Connection id (call channel is bottom bits) */
241 afs_int32 error; /* If this connection is in error, this is it */
243 struct rx_call_rx_lock *call[RX_MAXCALLS];
245 struct rx_call *call[RX_MAXCALLS];
247 afs_uint32 callNumber[RX_MAXCALLS]; /* Current call numbers */
248 afs_uint32 rwind[RX_MAXCALLS];
249 u_short twind[RX_MAXCALLS];
250 afs_uint32 serial; /* Next outgoing packet serial number */
251 afs_uint32 lastSerial; /* # of last packet received, for computing skew */
252 afs_int32 maxSerial; /* largest serial number seen on incoming packets */
253 afs_int32 lastPacketSize; /* last >max attempt */
254 afs_int32 lastPacketSizeSeq; /* seq number of attempt */
255 afs_int32 lastPingSize; /* last MTU ping attempt */
256 afs_int32 lastPingSizeSer; /* serial of last MTU ping attempt */
257 struct rxevent *challengeEvent; /* Scheduled when the server is challenging a */
258 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
259 struct rxevent *checkReachEvent; /* Scheduled when checking reachability */
260 int abortCount; /* count of abort messages sent */
261 /* client-- to retransmit the challenge */
262 struct rx_service *service; /* used by servers only */
263 u_short serviceId; /* To stamp on requests (clients only) */
264 afs_uint32 refCount; /* Reference count (rx_refcnt_mutex) */
265 u_char flags; /* Defined below - (conn_data_lock) */
266 u_char type; /* Type of connection, defined below */
267 u_char secondsUntilPing; /* how often to ping for each active call */
268 u_char securityIndex; /* corresponds to the security class of the */
269 /* securityObject for this conn */
270 struct rx_securityClass *securityObject; /* Security object for this connection */
271 void *securityData; /* Private data for this conn's security class */
272 u_short securityHeaderSize; /* Length of security module's packet header data */
273 u_short securityMaxTrailerSize; /* Length of security module's packet trailer data */
275 int timeout; /* Overall timeout per call (seconds) for this conn */
276 int lastSendTime; /* Last send time for this connection */
277 u_short secondsUntilDead; /* Maximum silence from peer before RX_CALL_DEAD */
278 u_short hardDeadTime; /* hard max for call execution */
279 u_short idleDeadTime; /* max time a call can be idle (no data) */
280 u_char ackRate; /* how many packets between ack requests */
281 u_char makeCallWaiters; /* how many rx_NewCalls are waiting */
282 afs_int32 idleDeadErr;
283 afs_int32 secondsUntilNatPing; /* how often to ping conn */
284 struct rxevent *natKeepAliveEvent; /* Scheduled to keep connection open */
285 afs_int32 msgsizeRetryErr;
286 int nSpecific; /* number entries in specific data */
287 void **specific; /* pointer to connection specific data */
291 /* A service is installed by rx_NewService, and specifies a service type that
292 * is exported by this process. Incoming calls are stamped with the service
293 * type, and must match an installed service for the call to be accepted.
294 * Each service exported has a (port,serviceId) pair to uniquely identify it.
295 * It is also named: this is intended to allow a remote statistics gathering
296 * program to retrieve per service statistics without having to know the local
297 * service id's. Each service has a number of
300 /* security objects (instances of security classes) which implement
301 * various types of end-to-end security protocols for connections made
302 * to this service. Finally, there are two parameters controlling the
303 * number of requests which may be executed in parallel by this
304 * service: minProcs is the number of requests to this service which
305 * are guaranteed to be able to run in parallel at any time; maxProcs
306 * has two meanings: it limits the total number of requests which may
307 * execute in parallel and it also guarantees that that many requests
308 * may be handled in parallel if no other service is handling any
312 u_short serviceId; /* Service number */
313 afs_uint32 serviceHost; /* IP address for this service */
314 u_short servicePort; /* UDP port for this service */
315 char *serviceName; /* Name of the service */
316 osi_socket socket; /* socket structure or file descriptor */
317 u_short nRequestsRunning; /* Number of requests currently in progress */
318 u_short nSecurityObjects; /* Number of entries in security objects array */
319 struct rx_securityClass **securityObjects; /* Array of security class objects */
320 afs_int32(*executeRequestProc) (struct rx_call * acall); /* Routine to call when an rpc request is received */
321 void (*destroyConnProc) (struct rx_connection * tcon); /* Routine to call when a server connection is destroyed */
322 void (*newConnProc) (struct rx_connection * tcon); /* Routine to call when a server connection is created */
323 void (*beforeProc) (struct rx_call * acall); /* routine to call before a call is executed */
324 void (*afterProc) (struct rx_call * acall, afs_int32 code); /* routine to call after a call is executed */
325 u_short maxProcs; /* Maximum procs to be used for this service */
326 u_short minProcs; /* Minimum # of requests guaranteed executable simultaneously */
327 u_short connDeadTime; /* Seconds until a client of this service will be declared dead, if it is not responding */
328 u_short idleDeadTime; /* Time a server will wait for I/O to start up again */
329 u_char checkReach; /* Check for asymmetric clients? */
330 afs_int32 idleDeadErr;
331 int nSpecific; /* number entries in specific data */
332 void **specific; /* pointer to connection specific data */
333 #ifdef RX_ENABLE_LOCKS
334 afs_kmutex_t svc_data_lock; /* protect specific data */
339 #endif /* KDUMP_RX_LOCK */
341 /* A server puts itself on an idle queue for a service using an
342 * instance of the following structure. When a call arrives, the call
343 * structure pointer is placed in "newcall", the routine to execute to
344 * service the request is placed in executeRequestProc, and the
345 * process is woken up. The queue entry's address is used for the
346 * sleep/wakeup. If socketp is non-null, then this thread is willing
347 * to become a listener thread. A thread sets *socketp to -1 before
348 * sleeping. If *socketp is not -1 when the thread awakes, it is now
349 * the listener thread for *socketp. When socketp is non-null, tno
350 * contains the server's threadID, which is used to make decitions in GetCall.
353 struct rx_serverQueueEntry_rx_lock {
355 struct rx_serverQueueEntry {
357 struct rx_queue queueItemHeader;
359 struct rx_call_rx_lock *newcall;
361 struct rx_call *newcall;
363 #ifdef RX_ENABLE_LOCKS
372 /* A peer refers to a peer process, specified by a (host,port) pair. There may be more than one peer on a given host. */
374 struct rx_peer_rx_lock {
375 struct rx_peer_rx_lock *next; /* Next in hash conflict or free list */
378 struct rx_peer *next; /* Next in hash conflict or free list */
380 #ifdef RX_ENABLE_LOCKS
381 afs_kmutex_t peer_lock; /* Lock peer */
382 #endif /* RX_ENABLE_LOCKS */
383 afs_uint32 host; /* Remote IP address, in net byte order */
384 u_short port; /* Remote UDP port, in net byte order */
386 /* interface mtu probably used for this host - includes RX Header */
387 u_short ifMTU; /* doesn't include IP header */
389 /* For garbage collection */
390 afs_uint32 idleWhen; /* When the refcountwent to zero */
391 afs_uint32 refCount; /* Reference count for this structure (rx_peerHashTable_lock) */
393 /* Congestion control parameters */
394 u_char burstSize; /* Reinitialization size for the burst parameter */
395 u_char burst; /* Number of packets that can be transmitted right now, without pausing */
396 struct clock burstWait; /* Delay until new burst is allowed */
397 struct rx_queue congestionQueue; /* Calls that are waiting for non-zero burst value */
398 int rtt; /* Smoothed round trip time, measured in milliseconds/8 */
399 int rtt_dev; /* Smoothed rtt mean difference, in milliseconds/4 */
400 struct clock timeout; /* Current retransmission delay */
401 int backedOff; /* Has the timeout been backed off due to a missing packet? */
402 int nSent; /* Total number of distinct data packets sent, not including retransmissions */
403 int reSends; /* Total number of retransmissions for this peer, since this structure was created */
405 /* Skew: if a packet is received N packets later than expected (based
406 * on packet serial numbers), then we define it to have a skew of N.
407 * The maximum skew values allow us to decide when a packet hasn't
408 * been received yet because it is out-of-order, as opposed to when it
409 * is likely to have been dropped. */
410 afs_uint32 inPacketSkew; /* Maximum skew on incoming packets */
411 afs_uint32 outPacketSkew; /* Peer-reported max skew on our sent packets */
412 int rateFlag; /* Flag for rate testing (-no 0yes +decrement) */
414 /* the "natural" MTU, excluding IP,UDP headers, is negotiated by the endpoints */
417 /* negotiated maximum number of packets to send in a single datagram. */
418 u_short maxDgramPackets;
419 /* local maximum number of packets to send in a single datagram. */
420 u_short ifDgramPackets;
422 * MTU, cwind, and nDgramPackets are used to initialize
423 * slow start parameters for new calls. These values are set whenever a
424 * call sends a retransmission and at the end of each call.
425 * congestSeq is incremented each time the congestion parameters are
426 * changed by a call recovering from a dropped packet. A call used
427 * MAX when updating congestion parameters if it started with the
428 * current congestion sequence number, otherwise it uses MIN.
430 u_short MTU; /* MTU for AFS 3.4a jumboGrams */
431 u_short cwind; /* congestion window */
432 u_short nDgramPackets; /* number packets per AFS 3.5 jumbogram */
433 u_short congestSeq; /* Changed when a call retransmits */
434 afs_hyper_t bytesSent; /* Number of bytes sent to this peer */
435 afs_hyper_t bytesReceived; /* Number of bytes received from this peer */
436 struct rx_queue rpcStats; /* rpc statistic list */
437 int lastReachTime; /* Last time we verified reachability */
438 afs_int32 maxPacketSize; /* peer packetsize hint */
446 #ifndef KDUMP_RX_LOCK
447 /* Flag bits for connection structure */
448 #define RX_CONN_MAKECALL_WAITING 1 /* rx_NewCall is waiting for a channel */
449 #define RX_CONN_DESTROY_ME 2 /* Destroy *client* connection after last call */
450 #define RX_CONN_USING_PACKET_CKSUM 4 /* non-zero header.spare field seen */
451 #define RX_CONN_KNOW_WINDOW 8 /* window size negotiation works */
452 #define RX_CONN_RESET 16 /* connection is reset, remove */
453 #define RX_CONN_BUSY 32 /* connection is busy; don't delete */
454 #define RX_CONN_ATTACHWAIT 64 /* attach waiting for peer->lastReach */
455 #define RX_CONN_MAKECALL_ACTIVE 128 /* a thread is actively in rx_NewCall */
457 /* Type of connection, client or server */
458 #define RX_CLIENT_CONNECTION 0
459 #define RX_SERVER_CONNECTION 1
460 #endif /* !KDUMP_RX_LOCK */
462 /* Maximum number of acknowledgements in an acknowledge packet */
463 #define RX_MAXACKS 255
465 /* 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. */
467 struct rx_call_rx_lock {
471 struct rx_queue queue_item_header; /* Call can be on various queues (one-at-a-time) */
472 struct rx_queue tq; /* Transmit packet queue */
473 struct rx_queue rq; /* Receive packet queue */
475 * The following fields are accessed while the call is unlocked.
476 * These fields are used by the caller/server thread to marshall
477 * and unmarshall RPC data. The only time they may be changed by
478 * other threads is when the RX_CALL_IOVEC_WAIT flag is set.
480 * NOTE: Be sure that these fields start and end on a double
481 * word boundary. Otherwise threads that are changing
482 * adjacent fields will cause problems.
484 struct rx_queue iovq; /* readv/writev packet queue */
485 u_short nLeft; /* Number bytes left in first receive packet */
486 u_short curvec; /* current iovec in currentPacket */
487 u_short curlen; /* bytes remaining in curvec */
488 u_short nFree; /* Number bytes free in last send packet */
489 struct rx_packet *currentPacket; /* Current packet being assembled or being read */
490 char *curpos; /* current position in curvec */
492 * End of fields accessed with call unlocked
494 u_char channel; /* Index of call, within connection */
495 u_char state; /* Current call state as defined below */
496 u_char mode; /* Current mode of a call in ACTIVE state */
497 #ifdef RX_ENABLE_LOCKS
498 afs_kmutex_t lock; /* lock covers data as well as mutexes. */
499 afs_kmutex_t *call_queue_lock; /* points to lock for queue we're on,
501 afs_kcondvar_t cv_twind;
502 afs_kcondvar_t cv_rq;
503 afs_kcondvar_t cv_tq;
506 struct rx_connection_rx_lock *conn; /* Parent connection for call */
508 struct rx_connection *conn; /* Parent connection for this call */
510 afs_uint32 *callNumber; /* Pointer to call number field within connection */
511 afs_uint32 flags; /* Some random flags */
512 u_char localStatus; /* Local user status sent out of band */
513 u_char remoteStatus; /* Remote user status received out of band */
514 afs_int32 error; /* Error condition for this call */
515 afs_uint32 timeout; /* High level timeout for this call */
516 afs_uint32 rnext; /* Next sequence number expected to be read by rx_ReadData */
517 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 */
518 afs_uint32 rwind; /* The receive window: the peer must not send packets with sequence numbers >= rnext+rwind */
519 afs_uint32 tfirst; /* First unacknowledged transmit packet number */
520 afs_uint32 tnext; /* Next transmit sequence number to use */
521 u_short twind; /* The transmit window: we cannot assign a sequence number to a packet >= tfirst + twind */
522 u_short cwind; /* The congestion window */
523 u_short nSoftAcked; /* Number soft acked transmit packets */
524 u_short nextCwind; /* The congestion window after recovery */
525 u_short nCwindAcks; /* Number acks received at current cwind */
526 u_short ssthresh; /* The slow start threshold */
527 u_short nDgramPackets; /* Packets per AFS 3.5 jumbogram */
528 u_short nAcks; /* The number of consecutive acks */
529 u_short nNacks; /* Number packets acked that follow the
530 * first negatively acked packet */
531 u_short nSoftAcks; /* The number of delayed soft acks */
532 u_short nHardAcks; /* The number of delayed hard acks */
533 u_short congestSeq; /* Peer's congestion sequence counter */
534 struct rxevent *resendEvent; /* If this is non-Null, there is a retransmission event pending */
535 struct rxevent *timeoutEvent; /* If this is non-Null, then there is an overall timeout for this call */
536 struct rxevent *keepAliveEvent; /* Scheduled periodically in active calls to keep call alive */
537 struct rxevent *growMTUEvent; /* Scheduled periodically in active calls to discover true maximum MTU */
538 struct rxevent *delayedAckEvent; /* Scheduled after all packets are received to send an ack if a reply or new call is not generated soon */
539 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
540 int abortCode; /* error code from last RPC */
541 int abortCount; /* number of times last error was sent */
542 u_int lastSendTime; /* Last time a packet was sent on this call */
543 u_int lastReceiveTime; /* Last time a packet was received for this call */
544 u_int lastSendData; /* Last time a nonping was sent on this call */
545 void (*arrivalProc) (struct rx_call * call, void * mh, int index); /* Procedure to call when reply is received */
546 void *arrivalProcHandle; /* Handle to pass to replyFunc */
547 int arrivalProcArg; /* Additional arg to pass to reply Proc */
548 afs_uint32 lastAcked; /* last packet "hard" acked by receiver */
549 afs_uint32 startWait; /* time server began waiting for input data/send quota */
550 struct clock traceWait; /* time server began waiting for input data/send quota */
551 struct clock traceStart; /* time the call started running */
552 u_short MTU; /* size of packets currently sending */
553 #ifdef RX_ENABLE_LOCKS
554 short refCount; /* Used to keep calls from disappearring
555 * when we get them from a queue. (rx_refcnt_lock) */
556 #endif /* RX_ENABLE_LOCKS */
557 /* Call refcount modifiers */
558 #define RX_CALL_REFCOUNT_BEGIN 0 /* GetCall/NewCall/EndCall */
559 #define RX_CALL_REFCOUNT_RESEND 1 /* resend event */
560 #define RX_CALL_REFCOUNT_DELAY 2 /* delayed ack */
561 #define RX_CALL_REFCOUNT_ALIVE 3 /* keep alive event */
562 #define RX_CALL_REFCOUNT_PACKET 4 /* waiting for packets. */
563 #define RX_CALL_REFCOUNT_SEND 5 /* rxi_Send */
564 #define RX_CALL_REFCOUNT_ACKALL 6 /* rxi_AckAll */
565 #define RX_CALL_REFCOUNT_ABORT 7 /* delayed abort */
566 #define RX_CALL_REFCOUNT_MAX 8 /* array size. */
567 #ifdef RX_REFCOUNT_CHECK
568 short refCDebug[RX_CALL_REFCOUNT_MAX];
569 #endif /* RX_REFCOUNT_CHECK */
572 * iov, iovNBytes, iovMax, and iovNext are set in rxi_ReadvProc()
573 * and adjusted by rxi_FillReadVec(). iov does not own the buffers
574 * it refers to. The buffers belong to the packets stored in iovq.
575 * Only one call to rx_ReadvProc() can be active at a time.
578 int iovNBytes; /* byte count for current iovec */
579 int iovMax; /* number elements in current iovec */
580 int iovNext; /* next entry in current iovec */
581 struct iovec *iov; /* current iovec */
583 struct clock queueTime; /* time call was queued */
584 struct clock startTime; /* time call was started */
585 afs_hyper_t bytesSent; /* Number bytes sent */
586 afs_hyper_t bytesRcvd; /* Number bytes received */
589 struct rx_packet *xmitList[RX_MAXACKS]; /* Can't xmit more than we ack */
590 /* Protected by setting RX_CALL_TQ_BUSY */
592 struct clock pingRequestTime;
594 #ifdef RXDEBUG_PACKET
595 u_short tqc; /* packet count in tq */
596 u_short rqc; /* packet count in rq */
597 u_short iovqc; /* packet count in iovq */
600 struct rx_call_rx_lock *allNextp;
602 struct rx_call *allNextp;
608 #ifndef KDUMP_RX_LOCK
609 /* Major call states */
610 #define RX_STATE_NOTINIT 0 /* Call structure has never been initialized */
611 #define RX_STATE_PRECALL 1 /* Server-only: call is not in progress, but packets have arrived */
612 #define RX_STATE_ACTIVE 2 /* An active call; a process is dealing with this call */
613 #define RX_STATE_DALLY 3 /* Dallying after process is done with call */
614 #define RX_STATE_HOLD 4 /* Waiting for acks on reply data packets */
615 #define RX_STATE_RESET 5 /* Call is being reset */
617 /* Call modes: the modes of a call in RX_STATE_ACTIVE state (process attached) */
618 #define RX_MODE_SENDING 1 /* Sending or ready to send */
619 #define RX_MODE_RECEIVING 2 /* Receiving or ready to receive */
620 #define RX_MODE_ERROR 3 /* Something in error for current conversation */
621 #define RX_MODE_EOF 4 /* Server has flushed (or client has read) last reply packet */
624 #define RX_CALL_READER_WAIT 1 /* Reader is waiting for next packet */
625 #define RX_CALL_WAIT_WINDOW_ALLOC 2 /* Sender is waiting for window to allocate buffers */
626 #define RX_CALL_WAIT_WINDOW_SEND 4 /* Sender is waiting for window to send buffers */
627 #define RX_CALL_WAIT_PACKETS 8 /* Sender is waiting for packet buffers */
628 #define RX_CALL_WAIT_PROC 16 /* Waiting for a process to be assigned */
629 #define RX_CALL_RECEIVE_DONE 32 /* All packets received on this call */
630 #define RX_CALL_CLEARED 64 /* Receive queue cleared in precall state */
631 #define RX_CALL_TQ_BUSY 128 /* Call's Xmit Queue is busy; don't modify */
632 #define RX_CALL_TQ_CLEARME 256 /* Need to clear this call's TQ later */
633 #define RX_CALL_TQ_SOME_ACKED 512 /* rxi_Start needs to discard ack'd packets. */
634 #define RX_CALL_TQ_WAIT 1024 /* Reader is waiting for TQ_BUSY to be reset */
635 #define RX_CALL_FAST_RECOVER 2048 /* call is doing congestion recovery */
636 #define RX_CALL_FAST_RECOVER_WAIT 4096 /* thread is waiting to start recovery */
637 #define RX_CALL_SLOW_START_OK 8192 /* receiver acks every other packet */
638 #define RX_CALL_IOVEC_WAIT 16384 /* waiting thread is using an iovec */
639 #define RX_CALL_HAVE_LAST 32768 /* Last packet has been received */
640 #define RX_CALL_NEED_START 0x10000 /* tells rxi_Start to start again */
643 /* The structure of the data portion of an acknowledge packet: An acknowledge
644 * packet is in network byte order at all times. An acknowledgement is always
645 * prompted for a specific reason by a specific incoming packet. This reason
646 * is reported in "reason" and the packet's sequence number in the packet
647 * header.seq. In addition to this information, all of the current
648 * acknowledgement information about this call is placed in the packet.
649 * "FirstPacket" is the sequence number of the first packet represented in an
650 * array of bytes, "acks", containing acknowledgement information for a number
651 * of consecutive packets. All packets prior to FirstPacket are implicitly
652 * acknowledged: the sender need no longer be concerned about them. Packets
653 * from firstPacket+nAcks and on are not acknowledged. Packets in the range
654 * [firstPacket,firstPacket+nAcks) are each acknowledged explicitly. The
655 * acknowledgement may be RX_NACK if the packet is not (currently) at the
656 * receiver (it may have never been received, or received and then later
657 * dropped), or it may be RX_ACK if the packet is queued up waiting to be read
658 * by the upper level software. RX_ACK does not imply that the packet may not
659 * be dropped before it is read; it does imply that the sender should stop
660 * retransmitting the packet until notified otherwise. The field
661 * previousPacket identifies the previous packet received by the peer. This
662 * was used in a previous version of this software, and could be used in the
663 * future. The serial number in the data part of the ack packet corresponds to
664 * the serial number oof the packet which prompted the acknowledge. Any
665 * packets which are explicitly not acknowledged, and which were last
666 * transmitted with a serial number less than the provided serial number,
667 * should be retransmitted immediately. Actually, this is slightly inaccurate:
668 * packets are not necessarily received in order. When packets are habitually
669 * transmitted out of order, this is allowed for in the retransmission
670 * algorithm by introducing the notion of maximum packet skew: the degree of
671 * out-of-orderness of the packets received on the wire. This number is
672 * communicated from the receiver to the sender in ack packets. */
674 struct rx_ackPacket {
675 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. */
676 u_short maxSkew; /* Maximum difference between serial# of packet acknowledged and highest packet yet received */
677 afs_uint32 firstPacket; /* The first packet in the list of acknowledged packets */
678 afs_uint32 previousPacket; /* The previous packet number received (obsolete?) */
679 afs_uint32 serial; /* Serial number of the packet which prompted the acknowledge */
680 u_char reason; /* Reason for the acknowledge of ackPacket, defined below */
681 u_char nAcks; /* Number of acknowledgements */
682 u_char acks[RX_MAXACKS]; /* Up to RX_MAXACKS packet acknowledgements, defined below */
683 /* 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) */
686 #define FIRSTACKOFFSET 4
688 /* Reason for acknowledge message */
689 #define RX_ACK_REQUESTED 1 /* Peer requested an ack on this packet */
690 #define RX_ACK_DUPLICATE 2 /* Duplicate packet */
691 #define RX_ACK_OUT_OF_SEQUENCE 3 /* Packet out of sequence */
692 #define RX_ACK_EXCEEDS_WINDOW 4 /* Packet sequence number higher than window; discarded */
693 #define RX_ACK_NOSPACE 5 /* No buffer space at all */
694 #define RX_ACK_PING 6 /* This is a keep-alive ack */
695 #define RX_ACK_PING_RESPONSE 7 /* Ack'ing because we were pinged */
696 #define RX_ACK_DELAY 8 /* Ack generated since nothing has happened since receiving packet */
697 #define RX_ACK_IDLE 9 /* Similar to RX_ACK_DELAY, but can
698 * be used to compute RTT */
699 #define RX_ACK_MTU -1 /* will be rewritten to ACK_PING */
701 /* Packet acknowledgement type */
702 #define RX_ACK_TYPE_NACK 0 /* I Don't have this packet */
703 #define RX_ACK_TYPE_ACK 1 /* I have this packet, although I may discard it later */
705 /* The packet size transmitted for an acknowledge is adjusted to reflect the actual size of the acks array. This macro defines the size */
706 #define rx_AckDataSize(nAcks) (3 + nAcks + offsetof(struct rx_ackPacket, acks[0]))
708 #define RX_CHALLENGE_TIMEOUT 2 /* Number of seconds before another authentication request packet is generated */
709 #define RX_CHALLENGE_MAXTRIES 50 /* Max # of times we resend challenge */
710 #define RX_CHECKREACH_TIMEOUT 2 /* Number of seconds before another ping is generated */
711 #define RX_CHECKREACH_TTL 60 /* Re-check reachability this often */
713 /* 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 */
715 /* Something bad happened to the connection; temporary loss of communication */
716 #define RX_CALL_DEAD (-1)
718 /* An invalid operation, such as a client attempting to send data after having received the beginning of a reply from the server */
719 #define RX_INVALID_OPERATION (-2)
721 /* An optional timeout per call may be specified */
722 #define RX_CALL_TIMEOUT (-3)
724 /* End of data on a read */
727 /* Some sort of low-level protocol error */
728 #define RX_PROTOCOL_ERROR (-5)
730 /* 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 */
731 #define RX_USER_ABORT (-6)
733 /* Port already in use (from rx_Init) */
734 #define RX_ADDRINUSE (-7)
736 /* EMSGSIZE returned from network. Packet too big, must fragment */
737 #define RX_MSGSIZE (-8)
739 /* transient failure detected ( possibly the server is restarting ) */
740 /* this shud be equal to VRESTARTING ( util/errors.h ) for old clients to work */
741 #define RX_RESTARTING (-100)
750 struct rx_securityObjectStats {
751 char type; /* 0:unk 1:null,2:vab 3:kad */
753 char sparec[10]; /* force correct alignment */
754 afs_int32 flags; /* 1=>unalloc, 2=>auth, 4=>expired */
756 afs_uint32 packetsReceived;
757 afs_uint32 packetsSent;
758 afs_uint32 bytesReceived;
759 afs_uint32 bytesSent;
764 /* Configuration settings */
766 /* Enum for storing configuration variables which can be set via the
767 * SetConfiguration method in the rx_securityClass, below
771 RXS_CONFIG_FLAGS /* afs_uint32 set of bitwise flags */
772 } rx_securityConfigVariables;
774 /* For the RXS_CONFIG_FLAGS, the following bit values are defined */
776 /* Disable the principal name contains dot check in rxkad */
777 #define RXS_CONFIG_FLAGS_DISABLE_DOTCHECK 0x01
779 /* XXXX (rewrite this description) A security class object contains a set of
780 * procedures and some private data to implement a security model for rx
781 * connections. These routines are called by rx as appropriate. Rx knows
782 * nothing about the internal details of any particular security model, or
783 * about security state. Rx does maintain state per connection on behalf of
784 * the security class. Each security class implementation is also expected to
785 * provide routines to create these objects. Rx provides a basic routine to
786 * allocate one of these objects; this routine must be called by the class. */
787 struct rx_securityClass {
788 struct rx_securityOps {
789 int (*op_Close) (struct rx_securityClass * aobj);
790 int (*op_NewConnection) (struct rx_securityClass * aobj,
791 struct rx_connection * aconn);
792 int (*op_PreparePacket) (struct rx_securityClass * aobj,
793 struct rx_call * acall,
794 struct rx_packet * apacket);
795 int (*op_SendPacket) (struct rx_securityClass * aobj,
796 struct rx_call * acall,
797 struct rx_packet * apacket);
798 int (*op_CheckAuthentication) (struct rx_securityClass * aobj,
799 struct rx_connection * aconn);
800 int (*op_CreateChallenge) (struct rx_securityClass * aobj,
801 struct rx_connection * aconn);
802 int (*op_GetChallenge) (struct rx_securityClass * aobj,
803 struct rx_connection * aconn,
804 struct rx_packet * apacket);
805 int (*op_GetResponse) (struct rx_securityClass * aobj,
806 struct rx_connection * aconn,
807 struct rx_packet * apacket);
808 int (*op_CheckResponse) (struct rx_securityClass * aobj,
809 struct rx_connection * aconn,
810 struct rx_packet * apacket);
811 int (*op_CheckPacket) (struct rx_securityClass * aobj,
812 struct rx_call * acall,
813 struct rx_packet * apacket);
814 int (*op_DestroyConnection) (struct rx_securityClass * aobj,
815 struct rx_connection * aconn);
816 int (*op_GetStats) (struct rx_securityClass * aobj,
817 struct rx_connection * aconn,
818 struct rx_securityObjectStats * astats);
819 int (*op_SetConfiguration) (struct rx_securityClass * aobj,
820 struct rx_connection * aconn,
821 rx_securityConfigVariables atype,
823 void ** acurrentValue);
824 int (*op_Spare2) (void);
825 int (*op_Spare3) (void);
831 #define RXS_OP(obj,op,args) ((obj && (obj->ops->op_ ## op)) ? (*(obj)->ops->op_ ## op)args : 0)
833 #define RXS_Close(obj) RXS_OP(obj,Close,(obj))
834 #define RXS_NewConnection(obj,conn) RXS_OP(obj,NewConnection,(obj,conn))
835 #define RXS_PreparePacket(obj,call,packet) RXS_OP(obj,PreparePacket,(obj,call,packet))
836 #define RXS_SendPacket(obj,call,packet) RXS_OP(obj,SendPacket,(obj,call,packet))
837 #define RXS_CheckAuthentication(obj,conn) RXS_OP(obj,CheckAuthentication,(obj,conn))
838 #define RXS_CreateChallenge(obj,conn) RXS_OP(obj,CreateChallenge,(obj,conn))
839 #define RXS_GetChallenge(obj,conn,packet) RXS_OP(obj,GetChallenge,(obj,conn,packet))
840 #define RXS_GetResponse(obj,conn,packet) RXS_OP(obj,GetResponse,(obj,conn,packet))
841 #define RXS_CheckResponse(obj,conn,packet) RXS_OP(obj,CheckResponse,(obj,conn,packet))
842 #define RXS_CheckPacket(obj,call,packet) RXS_OP(obj,CheckPacket,(obj,call,packet))
843 #define RXS_DestroyConnection(obj,conn) RXS_OP(obj,DestroyConnection,(obj,conn))
844 #define RXS_GetStats(obj,conn,stats) RXS_OP(obj,GetStats,(obj,conn,stats))
845 #define RXS_SetConfiguration(obj, conn, type, value, currentValue) RXS_OP(obj, SetConfiguration,(obj,conn,type,value,currentValue))
848 /* Structure for keeping rx statistics. Note that this structure is returned
849 * by rxdebug, so, for compatibility reasons, new fields should be appended (or
850 * spares used), the rxdebug protocol checked, if necessary, and the PrintStats
851 * code should be updated as well.
853 * Clearly we assume that ntohl will work on these structures so sizeof(int)
854 * must equal sizeof(afs_int32). */
856 struct rx_statistics { /* General rx statistics */
857 int packetRequests; /* Number of packet allocation requests */
858 int receivePktAllocFailures;
859 int sendPktAllocFailures;
860 int specialPktAllocFailures;
861 int socketGreedy; /* Whether SO_GREEDY succeeded */
862 int bogusPacketOnRead; /* Number of inappropriately short packets received */
863 int bogusHost; /* Host address from bogus packets */
864 int noPacketOnRead; /* Number of read packets attempted when there was actually no packet to read off the wire */
865 int noPacketBuffersOnRead; /* Number of dropped data packets due to lack of packet buffers */
866 int selects; /* Number of selects waiting for packet or timeout */
867 int sendSelects; /* Number of selects forced when sending packet */
868 int packetsRead[RX_N_PACKET_TYPES]; /* Total number of packets read, per type */
869 int dataPacketsRead; /* Number of unique data packets read off the wire */
870 int ackPacketsRead; /* Number of ack packets read */
871 int dupPacketsRead; /* Number of duplicate data packets read */
872 int spuriousPacketsRead; /* Number of inappropriate data packets */
873 int packetsSent[RX_N_PACKET_TYPES]; /* Number of rxi_Sends: packets sent over the wire, per type */
874 int ackPacketsSent; /* Number of acks sent */
875 int pingPacketsSent; /* Total number of ping packets sent */
876 int abortPacketsSent; /* Total number of aborts */
877 int busyPacketsSent; /* Total number of busies sent received */
878 int dataPacketsSent; /* Number of unique data packets sent */
879 int dataPacketsReSent; /* Number of retransmissions */
880 int dataPacketsPushed; /* Number of retransmissions pushed early by a NACK */
881 int ignoreAckedPacket; /* Number of packets with acked flag, on rxi_Start */
882 struct clock totalRtt; /* Total round trip time measured (use to compute average) */
883 struct clock minRtt; /* Minimum round trip time measured */
884 struct clock maxRtt; /* Maximum round trip time measured */
885 int nRttSamples; /* Total number of round trip samples */
886 int nServerConns; /* Total number of server connections */
887 int nClientConns; /* Total number of client connections */
888 int nPeerStructs; /* Total number of peer structures */
889 int nCallStructs; /* Total number of call structures allocated */
890 int nFreeCallStructs; /* Total number of previously allocated free call structures */
892 afs_int32 fatalErrors;
893 int ignorePacketDally; /* packets dropped because call is in dally state */
894 int receiveCbufPktAllocFailures;
895 int sendCbufPktAllocFailures;
900 /* structures for debug input and output packets */
902 /* debug input types */
908 /* Invalid rx debug package type */
909 #define RX_DEBUGI_BADTYPE (-8)
911 #define RX_DEBUGI_VERSION_MINIMUM ('L') /* earliest real version */
912 #define RX_DEBUGI_VERSION ('S') /* Latest version */
913 /* first version w/ secStats */
914 #define RX_DEBUGI_VERSION_W_SECSTATS ('L')
915 /* version M is first supporting GETALLCONN and RXSTATS type */
916 #define RX_DEBUGI_VERSION_W_GETALLCONN ('M')
917 #define RX_DEBUGI_VERSION_W_RXSTATS ('M')
918 /* last version with unaligned debugConn */
919 #define RX_DEBUGI_VERSION_W_UNALIGNED_CONN ('L')
920 #define RX_DEBUGI_VERSION_W_WAITERS ('N')
921 #define RX_DEBUGI_VERSION_W_IDLETHREADS ('O')
922 #define RX_DEBUGI_VERSION_W_NEWPACKETTYPES ('P')
923 #define RX_DEBUGI_VERSION_W_GETPEER ('Q')
924 #define RX_DEBUGI_VERSION_W_WAITED ('R')
925 #define RX_DEBUGI_VERSION_W_PACKETS ('S')
927 #define RX_DEBUGI_GETSTATS 1 /* get basic rx stats */
928 #define RX_DEBUGI_GETCONN 2 /* get connection info */
929 #define RX_DEBUGI_GETALLCONN 3 /* get even uninteresting conns */
930 #define RX_DEBUGI_RXSTATS 4 /* get all rx stats */
931 #define RX_DEBUGI_GETPEER 5 /* get all peer structs */
933 struct rx_debugStats {
934 afs_int32 nFreePackets;
935 afs_int32 packetReclaims;
936 afs_int32 callsExecuted;
937 char waitingForPackets;
942 afs_int32 idleThreads; /* Number of server threads that are idle */
948 struct rx_debugConn_vL {
952 afs_int32 callNumber[RX_MAXCALLS];
958 char callState[RX_MAXCALLS];
959 char callMode[RX_MAXCALLS];
960 char callFlags[RX_MAXCALLS];
961 char callOther[RX_MAXCALLS];
962 /* old style getconn stops here */
963 struct rx_securityObjectStats secStats;
964 afs_int32 sparel[10];
967 struct rx_debugConn {
971 afs_int32 callNumber[RX_MAXCALLS];
977 char sparec[3]; /* force correct alignment */
978 char callState[RX_MAXCALLS];
979 char callMode[RX_MAXCALLS];
980 char callFlags[RX_MAXCALLS];
981 char callOther[RX_MAXCALLS];
982 /* old style getconn stops here */
983 struct rx_securityObjectStats secStats;
989 struct rx_debugPeer {
997 struct clock burstWait;
1000 struct clock timeout;
1003 afs_int32 inPacketSkew;
1004 afs_int32 outPacketSkew;
1008 u_short maxDgramPackets;
1009 u_short ifDgramPackets;
1012 u_short nDgramPackets;
1014 afs_hyper_t bytesSent;
1015 afs_hyper_t bytesReceived;
1016 afs_int32 sparel[10];
1019 #define RX_OTHER_IN 1 /* packets avail in in queue */
1020 #define RX_OTHER_OUT 2 /* packets avail in out queue */
1024 /* Only include this once, even when re-loading for kdump. */
1025 #ifndef _CALL_REF_DEFINED_
1026 #define _CALL_REF_DEFINED_
1028 #ifdef RX_ENABLE_LOCKS
1029 #ifdef RX_REFCOUNT_CHECK
1030 /* RX_REFCOUNT_CHECK is used to test for call refcount leaks by event
1033 extern int rx_callHoldType;
1034 #define CALL_HOLD(call, type) do { \
1036 call->refCDebug[type]++; \
1037 if (call->refCDebug[type] > 50) {\
1038 rx_callHoldType = type; \
1039 osi_Panic("Huge call refCount"); \
1042 #define CALL_RELE(call, type) do { \
1044 call->refCDebug[type]--; \
1045 if (call->refCDebug[type] > 50) {\
1046 rx_callHoldType = type; \
1047 osi_Panic("Negative call refCount"); \
1050 #else /* RX_REFCOUNT_CHECK */
1051 #define CALL_HOLD(call, type) call->refCount++
1052 #define CALL_RELE(call, type) call->refCount--
1053 #endif /* RX_REFCOUNT_CHECK */
1055 #else /* RX_ENABLE_LOCKS */
1056 #define CALL_HOLD(call, type)
1057 #define CALL_RELE(call, type)
1058 #endif /* RX_ENABLE_LOCKS */
1060 #endif /* _CALL_REF_DEFINED_ */
1062 #define RX_SERVER_DEBUG_SEC_STATS 0x1
1063 #define RX_SERVER_DEBUG_ALL_CONN 0x2
1064 #define RX_SERVER_DEBUG_RX_STATS 0x4
1065 #define RX_SERVER_DEBUG_WAITER_CNT 0x8
1066 #define RX_SERVER_DEBUG_IDLE_THREADS 0x10
1067 #define RX_SERVER_DEBUG_OLD_CONN 0x20
1068 #define RX_SERVER_DEBUG_NEW_PACKETS 0x40
1069 #define RX_SERVER_DEBUG_ALL_PEER 0x80
1070 #define RX_SERVER_DEBUG_WAITED_CNT 0x100
1071 #define RX_SERVER_DEBUG_PACKETS_CNT 0x200
1073 #define AFS_RX_STATS_CLEAR_ALL 0xffffffff
1074 #define AFS_RX_STATS_CLEAR_INVOCATIONS 0x1
1075 #define AFS_RX_STATS_CLEAR_BYTES_SENT 0x2
1076 #define AFS_RX_STATS_CLEAR_BYTES_RCVD 0x4
1077 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SUM 0x8
1078 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SQUARE 0x10
1079 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MIN 0x20
1080 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MAX 0x40
1081 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SUM 0x80
1082 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SQUARE 0x100
1083 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MIN 0x200
1084 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MAX 0x400
1086 typedef struct rx_function_entry_v1 {
1087 afs_uint32 remote_peer;
1088 afs_uint32 remote_port;
1089 afs_uint32 remote_is_server;
1090 afs_uint32 interfaceId;
1091 afs_uint32 func_total;
1092 afs_uint32 func_index;
1093 afs_hyper_t invocations;
1094 afs_hyper_t bytes_sent;
1095 afs_hyper_t bytes_rcvd;
1096 struct clock queue_time_sum;
1097 struct clock queue_time_sum_sqr;
1098 struct clock queue_time_min;
1099 struct clock queue_time_max;
1100 struct clock execution_time_sum;
1101 struct clock execution_time_sum_sqr;
1102 struct clock execution_time_min;
1103 struct clock execution_time_max;
1104 } rx_function_entry_v1_t, *rx_function_entry_v1_p;
1107 * If you need to change rx_function_entry, you should probably create a brand
1108 * new structure. Keeping the old structure will allow backwards compatibility
1109 * with old clients (even if it is only used to calculate allocation size).
1110 * If you do change the size or the format, you'll need to bump
1111 * RX_STATS_RETRIEVAL_VERSION. This allows some primitive form
1112 * of versioning a la rxdebug.
1115 #define RX_STATS_RETRIEVAL_VERSION 1 /* latest version */
1116 #define RX_STATS_RETRIEVAL_FIRST_EDITION 1 /* first implementation */
1118 typedef struct rx_interface_stat {
1119 struct rx_queue queue_header;
1120 struct rx_queue all_peers;
1121 rx_function_entry_v1_t stats[1]; /* make sure this is aligned correctly */
1122 } rx_interface_stat_t, *rx_interface_stat_p;
1124 #define RX_STATS_SERVICE_ID 409
1127 extern int rx_DumpCalls(FILE *outputFile, char *cookie);
1130 #endif /* _RX_ End of rx.h */
1133 #include "rx/rx_prototypes.h"
1135 #include "rx_prototypes.h"
1138 #endif /* !KDUMP_RX_LOCK */
git://git.openafs.org / openafs.git / blob