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.
26 /* Substitute VOID (char) for void, because some compilers are confused by void
27 * in some situations */
33 #include "rx_kmutex.h"
34 #include "rx_kernel.h"
38 #include "rx_packet.h"
41 #if defined (AFS_OBSD_ENV) && !defined (MLEN)
44 #include "netinet/in.h"
45 #include "sys/socket.h"
47 # include <sys/types.h>
50 #ifdef AFS_PTHREAD_ENV
51 # include "rx_pthread.h"
61 # include "rx_clock.h"
62 # include "rx_event.h"
63 # include "rx_packet.h"
66 # include "rx_multi.h"
68 # include <netinet/in.h>
69 # include <sys/socket.h>
74 /* Configurable parameters */
75 #define RX_IDLE_DEAD_TIME 60 /* default idle dead time */
76 #define RX_MAX_SERVICES 20 /* Maximum number of services that may be installed */
77 #if defined(KERNEL) && defined(AFS_AIX51_ENV) && defined(__64__)
78 #define RX_DEFAULT_STACK_SIZE 24000
80 #define RX_DEFAULT_STACK_SIZE 16000 /* Default process stack size; overriden by rx_SetStackSize */
83 /* This parameter should not normally be changed */
84 #define RX_PROCESS_PRIORITY LWP_NORMAL_PRIORITY
86 /* backoff is fixed point binary. Ie, units of 1/4 seconds */
87 #define MAXBACKOFF 0x1F
89 #define ADDRSPERSITE 16
92 /* Bottom n-bits of the Call Identifier give the call number */
93 #define RX_MAXCALLS 4 /* Power of 2; max async calls per connection */
94 #define RX_CIDSHIFT 2 /* Log2(RX_MAXCALLS) */
95 #define RX_CHANNELMASK (RX_MAXCALLS-1)
96 #define RX_CIDMASK (~RX_CHANNELMASK)
97 #endif /* !KDUMP_RX_LOCK */
100 typedef void (*rx_destructor_t) (void *);
101 int rx_KeyCreate(rx_destructor_t);
102 osi_socket rxi_GetHostUDPSocket(u_int host, u_short port);
103 osi_socket rxi_GetUDPSocket(u_short port);
107 int ntoh_syserr_conv(int error);
110 #define RX_DONTWAIT 0
112 #define rx_ConnectionOf(call) ((call)->conn)
113 #define rx_PeerOf(conn) ((conn)->peer)
114 #define rx_HostOf(peer) ((peer)->host)
115 #define rx_PortOf(peer) ((peer)->port)
116 #define rx_SetLocalStatus(call, status) ((call)->localStatus = (status))
117 #define rx_GetLocalStatus(call, status) ((call)->localStatus)
118 #define rx_GetRemoteStatus(call) ((call)->remoteStatus)
119 #define rx_Error(call) ((call)->error)
120 #define rx_ConnError(conn) ((conn)->error)
121 #define rx_IsServerConn(conn) ((conn)->type == RX_SERVER_CONNECTION)
122 #define rx_IsClientConn(conn) ((conn)->type == RX_CLIENT_CONNECTION)
123 /* Don't use these; use the IsServerConn style */
124 #define rx_ServerConn(conn) ((conn)->type == RX_SERVER_CONNECTION)
125 #define rx_ClientConn(conn) ((conn)->type == RX_CLIENT_CONNECTION)
126 #define rx_IsUsingPktCksum(conn) ((conn)->flags & RX_CONN_USING_PACKET_CKSUM)
127 #define rx_ServiceIdOf(conn) ((conn)->serviceId)
128 #define rx_SecurityClassOf(conn) ((conn)->securityIndex)
129 #define rx_SecurityObjectOf(conn) ((conn)->securityObject)
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 procedures for getting and setting before and after execute-request procs */
157 #define rx_SetAfterProc(service,proc) ((service)->afterProc = (proc))
158 #define rx_SetBeforeProc(service,proc) ((service)->beforeProc = (proc))
159 #define rx_GetAfterProc(service) ((service)->afterProc)
160 #define rx_GetBeforeProc(service) ((service)->beforeProc)
162 /* Define a procedure to be called when a server connection is created */
163 #define rx_SetNewConnProc(service, proc) ((service)->newConnProc = (proc))
165 /* NOTE: We'll probably redefine the following three routines, again, sometime. */
167 /* Set the connection dead time for any connections created for this service (server only) */
168 #define rx_SetServiceDeadTime(service, seconds) ((service)->secondsUntilDead = (seconds))
170 /* Enable or disable asymmetric client checking for a service */
171 #define rx_SetCheckReach(service, x) ((service)->checkReach = (x))
173 /* Set connection hard and idle timeouts for a connection */
174 #define rx_SetConnHardDeadTime(conn, seconds) ((conn)->hardDeadTime = (seconds))
175 #define rx_SetConnIdleDeadTime(conn, seconds) ((conn)->idleDeadTime = (seconds))
177 /* Set the overload threshold and the overload error */
178 #define rx_SetBusyThreshold(threshold, code) (rx_BusyThreshold=(threshold),rx_BusyError=(code))
180 /* If this flag is set,no new requests are processed by rx, all new requests are
181 returned with an error code of RX_CALL_DEAD ( transient error ) */
182 #define rx_SetRxTranquil() (rx_tranquil = 1)
183 #define rx_ClearRxTranquil() (rx_tranquil = 0)
185 /* Set the threshold and time to delay aborts for consecutive errors */
186 #define rx_SetCallAbortThreshold(A) (rxi_callAbortThreshhold = (A))
187 #define rx_SetCallAbortDelay(A) (rxi_callAbortDelay = (A))
188 #define rx_SetConnAbortThreshold(A) (rxi_connAbortThreshhold = (A))
189 #define rx_SetConnAbortDelay(A) (rxi_connAbortDelay = (A))
191 #define rx_GetCallAbortCode(call) ((call)->abortCode)
192 #define rx_SetCallAbortCode(call, code) ((call)->abortCode = (code))
194 #define cpspace(call) ((call)->curlen)
195 #define cppos(call) ((call)->curpos)
197 #define rx_Read(call, buf, nbytes) rx_ReadProc(call, buf, nbytes)
198 #define rx_Read32(call, value) rx_ReadProc32(call, value)
199 #define rx_Readv(call, iov, nio, maxio, nbytes) \
200 rx_ReadvProc(call, iov, nio, maxio, nbytes)
201 #define rx_Write(call, buf, nbytes) rx_WriteProc(call, buf, nbytes)
202 #define rx_Write32(call, value) rx_WriteProc32(call, value)
203 #define rx_Writev(call, iov, nio, nbytes) \
204 rx_WritevProc(call, iov, nio, nbytes)
206 /* This is the maximum size data packet that can be sent on this connection, accounting for security module-specific overheads. */
207 #define rx_MaxUserDataSize(call) ((call)->MTU - RX_HEADER_SIZE - (call)->conn->securityHeaderSize - (call)->conn->securityMaxTrailerSize)
209 /* Macros to turn the hot thread feature on and off. Enabling hot threads
210 * allows the listener thread to trade places with an idle worker thread,
211 * which moves the context switch from listener to worker out of the
214 #define rx_EnableHotThread() (rx_enable_hot_thread = 1)
215 #define rx_DisableHotThread() (rx_enable_hot_thread = 0)
217 #define rx_PutConnection(conn) rx_DestroyConnection(conn)
219 /* A connection is an authenticated communication path, allowing
220 limited multiple asynchronous conversations. */
222 struct rx_connection_rx_lock {
223 struct rx_connection_rx_lock *next; /* on hash chain _or_ free list */
224 struct rx_peer_rx_lock *peer;
226 struct rx_connection {
227 struct rx_connection *next; /* on hash chain _or_ free list */
228 struct rx_peer *peer;
230 #ifdef RX_ENABLE_LOCKS
231 afs_kmutex_t conn_call_lock; /* locks conn_call_cv */
232 afs_kcondvar_t conn_call_cv;
233 afs_kmutex_t conn_data_lock; /* locks packet data */
235 afs_uint32 epoch; /* Process start time of client side of connection */
236 afs_uint32 cid; /* Connection id (call channel is bottom bits) */
237 afs_int32 error; /* If this connection is in error, this is it */
239 struct rx_call_rx_lock *call[RX_MAXCALLS];
241 struct rx_call *call[RX_MAXCALLS];
243 afs_uint32 callNumber[RX_MAXCALLS]; /* Current call numbers */
244 afs_uint32 serial; /* Next outgoing packet serial number */
245 afs_uint32 lastSerial; /* # of last packet received, for computing skew */
246 afs_int32 maxSerial; /* largest serial number seen on incoming packets */
247 /* afs_int32 maxPacketSize; max packet size should be per-connection since */
248 /* peer process could be restarted on us. Includes RX Header. */
249 struct rxevent *challengeEvent; /* Scheduled when the server is challenging a */
250 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
251 struct rxevent *checkReachEvent; /* Scheduled when checking reachability */
252 int abortCount; /* count of abort messages sent */
253 /* client-- to retransmit the challenge */
254 struct rx_service *service; /* used by servers only */
255 u_short serviceId; /* To stamp on requests (clients only) */
256 afs_uint32 refCount; /* Reference count */
257 u_char flags; /* Defined below */
258 u_char type; /* Type of connection, defined below */
259 u_char secondsUntilPing; /* how often to ping for each active call */
260 u_char securityIndex; /* corresponds to the security class of the */
261 /* securityObject for this conn */
262 struct rx_securityClass *securityObject; /* Security object for this connection */
263 VOID *securityData; /* Private data for this conn's security class */
264 u_short securityHeaderSize; /* Length of security module's packet header data */
265 u_short securityMaxTrailerSize; /* Length of security module's packet trailer data */
267 int timeout; /* Overall timeout per call (seconds) for this conn */
268 int lastSendTime; /* Last send time for this connection */
269 u_short secondsUntilDead; /* Maximum silence from peer before RX_CALL_DEAD */
270 u_short hardDeadTime; /* hard max for call execution */
271 u_short idleDeadTime; /* max time a call can be idle (no data) */
272 u_char ackRate; /* how many packets between ack requests */
273 u_char makeCallWaiters; /* how many rx_NewCalls are waiting */
274 int nSpecific; /* number entries in specific data */
275 void **specific; /* pointer to connection specific data */
279 /* A service is installed by rx_NewService, and specifies a service type that
280 * is exported by this process. Incoming calls are stamped with the service
281 * type, and must match an installed service for the call to be accepted.
282 * Each service exported has a (port,serviceId) pair to uniquely identify it.
283 * It is also named: this is intended to allow a remote statistics gathering
284 * program to retrieve per service statistics without having to know the local
285 * service id's. Each service has a number of
288 /* security objects (instances of security classes) which implement
289 * various types of end-to-end security protocols for connections made
290 * to this service. Finally, there are two parameters controlling the
291 * number of requests which may be executed in parallel by this
292 * service: minProcs is the number of requests to this service which
293 * are guaranteed to be able to run in parallel at any time; maxProcs
294 * has two meanings: it limits the total number of requests which may
295 * execute in parallel and it also guarantees that that many requests
296 * may be handled in parallel if no other service is handling any
300 u_short serviceId; /* Service number */
301 afs_uint32 serviceHost; /* IP address for this service */
302 u_short servicePort; /* UDP port for this service */
303 char *serviceName; /* Name of the service */
304 osi_socket socket; /* socket structure or file descriptor */
305 u_short nRequestsRunning; /* Number of requests currently in progress */
306 u_short nSecurityObjects; /* Number of entries in security objects array */
307 struct rx_securityClass **securityObjects; /* Array of security class objects */
308 afs_int32(*executeRequestProc) (struct rx_call * acall); /* Routine to call when an rpc request is received */
309 void (*destroyConnProc) (struct rx_connection * tcon); /* Routine to call when a server connection is destroyed */
310 void (*newConnProc) (struct rx_connection * tcon); /* Routine to call when a server connection is created */
311 void (*beforeProc) (struct rx_call * acall); /* routine to call before a call is executed */
312 void (*afterProc) (struct rx_call * acall, afs_int32 code); /* routine to call after a call is executed */
313 u_short maxProcs; /* Maximum procs to be used for this service */
314 u_short minProcs; /* Minimum # of requests guaranteed executable simultaneously */
315 u_short connDeadTime; /* Seconds until a client of this service will be declared dead, if it is not responding */
316 u_short idleDeadTime; /* Time a server will wait for I/O to start up again */
317 u_char checkReach; /* Check for asymmetric clients? */
320 #endif /* KDUMP_RX_LOCK */
322 /* A server puts itself on an idle queue for a service using an
323 * instance of the following structure. When a call arrives, the call
324 * structure pointer is placed in "newcall", the routine to execute to
325 * service the request is placed in executeRequestProc, and the
326 * process is woken up. The queue entry's address is used for the
327 * sleep/wakeup. If socketp is non-null, then this thread is willing
328 * to become a listener thread. A thread sets *socketp to -1 before
329 * sleeping. If *socketp is not -1 when the thread awakes, it is now
330 * the listener thread for *socketp. When socketp is non-null, tno
331 * contains the server's threadID, which is used to make decitions in GetCall.
334 struct rx_serverQueueEntry_rx_lock {
336 struct rx_serverQueueEntry {
338 struct rx_queue queueItemHeader;
340 struct rx_call_rx_lock *newcall;
342 struct rx_call *newcall;
344 #ifdef RX_ENABLE_LOCKS
353 /* A peer refers to a peer process, specified by a (host,port) pair. There may be more than one peer on a given host. */
355 struct rx_peer_rx_lock {
356 struct rx_peer_rx_lock *next; /* Next in hash conflict or free list */
359 struct rx_peer *next; /* Next in hash conflict or free list */
361 #ifdef RX_ENABLE_LOCKS
362 afs_kmutex_t peer_lock; /* Lock peer */
363 #endif /* RX_ENABLE_LOCKS */
364 afs_uint32 host; /* Remote IP address, in net byte order */
365 u_short port; /* Remote UDP port, in net byte order */
367 /* interface mtu probably used for this host - includes RX Header */
368 u_short ifMTU; /* doesn't include IP header */
370 /* For garbage collection */
371 afs_uint32 idleWhen; /* When the refcountwent to zero */
372 afs_uint32 refCount; /* Reference count for this structure */
374 /* Congestion control parameters */
375 u_char burstSize; /* Reinitialization size for the burst parameter */
376 u_char burst; /* Number of packets that can be transmitted right now, without pausing */
377 struct clock burstWait; /* Delay until new burst is allowed */
378 struct rx_queue congestionQueue; /* Calls that are waiting for non-zero burst value */
379 int rtt; /* Round trip time, measured in milliseconds/8 */
380 int rtt_dev; /* rtt smoothed error, in milliseconds/4 */
381 struct clock timeout; /* Current retransmission delay */
382 int nSent; /* Total number of distinct data packets sent, not including retransmissions */
383 int reSends; /* Total number of retransmissions for this peer, since this structure was created */
385 /* Skew: if a packet is received N packets later than expected (based
386 * on packet serial numbers), then we define it to have a skew of N.
387 * The maximum skew values allow us to decide when a packet hasn't
388 * been received yet because it is out-of-order, as opposed to when it
389 * is likely to have been dropped. */
390 afs_uint32 inPacketSkew; /* Maximum skew on incoming packets */
391 afs_uint32 outPacketSkew; /* Peer-reported max skew on our sent packets */
392 int rateFlag; /* Flag for rate testing (-no 0yes +decrement) */
394 /* the "natural" MTU, excluding IP,UDP headers, is negotiated by the endpoints */
397 /* negotiated maximum number of packets to send in a single datagram. */
398 u_short maxDgramPackets;
399 /* local maximum number of packets to send in a single datagram. */
400 u_short ifDgramPackets;
402 * MTU, cwind, and nDgramPackets are used to initialize
403 * slow start parameters for new calls. These values are set whenever a
404 * call sends a retransmission and at the end of each call.
405 * congestSeq is incremented each time the congestion parameters are
406 * changed by a call recovering from a dropped packet. A call used
407 * MAX when updating congestion parameters if it started with the
408 * current congestion sequence number, otherwise it uses MIN.
410 u_short MTU; /* MTU for AFS 3.4a jumboGrams */
411 u_short cwind; /* congestion window */
412 u_short nDgramPackets; /* number packets per AFS 3.5 jumbogram */
413 u_short congestSeq; /* Changed when a call retransmits */
414 afs_hyper_t bytesSent; /* Number of bytes sent to this peer */
415 afs_hyper_t bytesReceived; /* Number of bytes received from this peer */
416 struct rx_queue rpcStats; /* rpc statistic list */
417 int lastReachTime; /* Last time we verified reachability */
421 #ifndef KDUMP_RX_LOCK
422 /* Flag bits for connection structure */
423 #define RX_CONN_MAKECALL_WAITING 1 /* rx_MakeCall is waiting for a channel */
424 #define RX_CONN_DESTROY_ME 2 /* Destroy *client* connection after last call */
425 #define RX_CONN_USING_PACKET_CKSUM 4 /* non-zero header.spare field seen */
426 #define RX_CONN_KNOW_WINDOW 8 /* window size negotiation works */
427 #define RX_CONN_RESET 16 /* connection is reset, remove */
428 #define RX_CONN_BUSY 32 /* connection is busy; don't delete */
429 #define RX_CONN_ATTACHWAIT 64 /* attach waiting for peer->lastReach */
431 /* Type of connection, client or server */
432 #define RX_CLIENT_CONNECTION 0
433 #define RX_SERVER_CONNECTION 1
434 #endif /* !KDUMP_RX_LOCK */
436 /* 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. */
438 struct rx_call_rx_lock {
442 struct rx_queue queue_item_header; /* Call can be on various queues (one-at-a-time) */
443 struct rx_queue tq; /* Transmit packet queue */
444 struct rx_queue rq; /* Receive packet queue */
446 * The following fields are accessed while the call is unlocked.
447 * These fields are used by the caller/server thread to marshall
448 * and unmarshall RPC data. The only time they may be changed by
449 * other threads is when the RX_CALL_IOVEC_WAIT flag is set.
451 * NOTE: Be sure that these fields start and end on a double
452 * word boundary. Otherwise threads that are changing
453 * adjacent fields will cause problems.
455 struct rx_queue iovq; /* readv/writev packet queue */
456 u_short nLeft; /* Number bytes left in first receive packet */
457 u_short curvec; /* current iovec in currentPacket */
458 u_short curlen; /* bytes remaining in curvec */
459 u_short nFree; /* Number bytes free in last send packet */
460 struct rx_packet *currentPacket; /* Current packet being assembled or being read */
461 char *curpos; /* current position in curvec */
463 * End of fields accessed with call unlocked
465 u_char channel; /* Index of call, within connection */
466 u_char state; /* Current call state as defined below */
467 u_char mode; /* Current mode of a call in ACTIVE state */
468 #ifdef RX_ENABLE_LOCKS
469 afs_kmutex_t lock; /* lock covers data as well as mutexes. */
470 afs_kmutex_t *call_queue_lock; /* points to lock for queue we're on,
472 afs_kcondvar_t cv_twind;
473 afs_kcondvar_t cv_rq;
474 afs_kcondvar_t cv_tq;
477 struct rx_connection_rx_lock *conn; /* Parent connection for call */
479 struct rx_connection *conn; /* Parent connection for this call */
481 afs_uint32 *callNumber; /* Pointer to call number field within connection */
482 afs_uint32 flags; /* Some random flags */
483 u_char localStatus; /* Local user status sent out of band */
484 u_char remoteStatus; /* Remote user status received out of band */
485 afs_int32 error; /* Error condition for this call */
486 afs_uint32 timeout; /* High level timeout for this call */
487 afs_uint32 rnext; /* Next sequence number expected to be read by rx_ReadData */
488 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 */
489 afs_uint32 rwind; /* The receive window: the peer must not send packets with sequence numbers >= rnext+rwind */
490 afs_uint32 tfirst; /* First unacknowledged transmit packet number */
491 afs_uint32 tnext; /* Next transmit sequence number to use */
492 u_short twind; /* The transmit window: we cannot assign a sequence number to a packet >= tfirst + twind */
493 u_short cwind; /* The congestion window */
494 u_short nSoftAcked; /* Number soft acked transmit packets */
495 u_short nextCwind; /* The congestion window after recovery */
496 u_short nCwindAcks; /* Number acks received at current cwind */
497 u_short ssthresh; /* The slow start threshold */
498 u_short nDgramPackets; /* Packets per AFS 3.5 jumbogram */
499 u_short nAcks; /* The number of consecttive acks */
500 u_short nNacks; /* Number packets acked that follow the
501 * first negatively acked packet */
502 u_short nSoftAcks; /* The number of delayed soft acks */
503 u_short nHardAcks; /* The number of delayed hard acks */
504 u_short congestSeq; /* Peer's congestion sequence counter */
505 struct rxevent *resendEvent; /* If this is non-Null, there is a retransmission event pending */
506 struct rxevent *timeoutEvent; /* If this is non-Null, then there is an overall timeout for this call */
507 struct rxevent *keepAliveEvent; /* Scheduled periodically in active calls to keep call alive */
508 struct rxevent *delayedAckEvent; /* Scheduled after all packets are received to send an ack if a reply or new call is not generated soon */
509 struct rxevent *delayedAbortEvent; /* Scheduled to throttle looping client */
510 int abortCode; /* error code from last RPC */
511 int abortCount; /* number of times last error was sent */
512 u_int lastSendTime; /* Last time a packet was sent on this call */
513 u_int lastReceiveTime; /* Last time a packet was received for this call */
514 void (*arrivalProc) (register struct rx_call * call, register VOID * mh, register int index); /* Procedure to call when reply is received */
515 VOID *arrivalProcHandle; /* Handle to pass to replyFunc */
516 int arrivalProcArg; /* Additional arg to pass to reply Proc */
517 afs_uint32 lastAcked; /* last packet "hard" acked by receiver */
518 afs_uint32 startWait; /* time server began waiting for input data/send quota */
519 struct clock traceWait; /* time server began waiting for input data/send quota */
520 struct clock traceStart; /* time the call started running */
521 u_short MTU; /* size of packets currently sending */
522 #ifdef RX_ENABLE_LOCKS
523 short refCount; /* Used to keep calls from disappearring
524 * when we get them from a queue. */
525 #endif /* RX_ENABLE_LOCKS */
526 /* Call refcount modifiers */
527 #define RX_CALL_REFCOUNT_BEGIN 0 /* GetCall/NewCall/EndCall */
528 #define RX_CALL_REFCOUNT_RESEND 1 /* resend event */
529 #define RX_CALL_REFCOUNT_DELAY 2 /* delayed ack */
530 #define RX_CALL_REFCOUNT_ALIVE 3 /* keep alive event */
531 #define RX_CALL_REFCOUNT_PACKET 4 /* waiting for packets. */
532 #define RX_CALL_REFCOUNT_SEND 5 /* rxi_Send */
533 #define RX_CALL_REFCOUNT_ACKALL 6 /* rxi_AckAll */
534 #define RX_CALL_REFCOUNT_ABORT 7 /* delayed abort */
535 #define RX_CALL_REFCOUNT_MAX 8 /* array size. */
536 #ifdef RX_REFCOUNT_CHECK
537 short refCDebug[RX_CALL_REFCOUNT_MAX];
538 #endif /* RX_REFCOUNT_CHECK */
539 int iovNBytes; /* byte count for current iovec */
540 int iovMax; /* number elements in current iovec */
541 int iovNext; /* next entry in current iovec */
542 struct iovec *iov; /* current iovec */
543 struct clock queueTime; /* time call was queued */
544 struct clock startTime; /* time call was started */
545 afs_hyper_t bytesSent; /* Number bytes sent */
546 afs_hyper_t bytesRcvd; /* Number bytes received */
550 #ifndef KDUMP_RX_LOCK
551 /* Major call states */
552 #define RX_STATE_NOTINIT 0 /* Call structure has never been initialized */
553 #define RX_STATE_PRECALL 1 /* Server-only: call is not in progress, but packets have arrived */
554 #define RX_STATE_ACTIVE 2 /* An active call; a process is dealing with this call */
555 #define RX_STATE_DALLY 3 /* Dallying after process is done with call */
556 #define RX_STATE_HOLD 4 /* Waiting for acks on reply data packets */
558 /* Call modes: the modes of a call in RX_STATE_ACTIVE state (process attached) */
559 #define RX_MODE_SENDING 1 /* Sending or ready to send */
560 #define RX_MODE_RECEIVING 2 /* Receiving or ready to receive */
561 #define RX_MODE_ERROR 3 /* Something in error for current conversation */
562 #define RX_MODE_EOF 4 /* Server has flushed (or client has read) last reply packet */
565 #define RX_CALL_READER_WAIT 1 /* Reader is waiting for next packet */
566 #define RX_CALL_WAIT_WINDOW_ALLOC 2 /* Sender is waiting for window to allocate buffers */
567 #define RX_CALL_WAIT_WINDOW_SEND 4 /* Sender is waiting for window to send buffers */
568 #define RX_CALL_WAIT_PACKETS 8 /* Sender is waiting for packet buffers */
569 #define RX_CALL_WAIT_PROC 16 /* Waiting for a process to be assigned */
570 #define RX_CALL_RECEIVE_DONE 32 /* All packets received on this call */
571 #define RX_CALL_CLEARED 64 /* Receive queue cleared in precall state */
572 #define RX_CALL_TQ_BUSY 128 /* Call's Xmit Queue is busy; don't modify */
573 #define RX_CALL_TQ_CLEARME 256 /* Need to clear this call's TQ later */
574 #define RX_CALL_TQ_SOME_ACKED 512 /* rxi_Start needs to discard ack'd packets. */
575 #define RX_CALL_TQ_WAIT 1024 /* Reader is waiting for TQ_BUSY to be reset */
576 #define RX_CALL_FAST_RECOVER 2048 /* call is doing congestion recovery */
577 #define RX_CALL_FAST_RECOVER_WAIT 4096 /* thread is waiting to start recovery */
578 #define RX_CALL_SLOW_START_OK 8192 /* receiver acks every other packet */
579 #define RX_CALL_IOVEC_WAIT 16384 /* waiting thread is using an iovec */
580 #define RX_CALL_HAVE_LAST 32768 /* Last packet has been received */
581 #define RX_CALL_NEED_START 0x10000 /* tells rxi_Start to start again */
583 /* Maximum number of acknowledgements in an acknowledge packet */
584 #define RX_MAXACKS 255
586 /* The structure of the data portion of an acknowledge packet: An acknowledge
587 * packet is in network byte order at all times. An acknowledgement is always
588 * prompted for a specific reason by a specific incoming packet. This reason
589 * is reported in "reason" and the packet's sequence number in the packet
590 * header.seq. In addition to this information, all of the current
591 * acknowledgement information about this call is placed in the packet.
592 * "FirstPacket" is the sequence number of the first packet represented in an
593 * array of bytes, "acks", containing acknowledgement information for a number
594 * of consecutive packets. All packets prior to FirstPacket are implicitly
595 * acknowledged: the sender need no longer be concerned about them. Packets
596 * from firstPacket+nAcks and on are not acknowledged. Packets in the range
597 * [firstPacket,firstPacket+nAcks) are each acknowledged explicitly. The
598 * acknowledgement may be RX_NACK if the packet is not (currently) at the
599 * receiver (it may have never been received, or received and then later
600 * dropped), or it may be RX_ACK if the packet is queued up waiting to be read
601 * by the upper level software. RX_ACK does not imply that the packet may not
602 * be dropped before it is read; it does imply that the sender should stop
603 * retransmitting the packet until notified otherwise. The field
604 * previousPacket identifies the previous packet received by the peer. This
605 * was used in a previous version of this software, and could be used in the
606 * future. The serial number in the data part of the ack packet corresponds to
607 * the serial number oof the packet which prompted the acknowledge. Any
608 * packets which are explicitly not acknowledged, and which were last
609 * transmitted with a serial number less than the provided serial number,
610 * should be retransmitted immediately. Actually, this is slightly inaccurate:
611 * packets are not necessarily received in order. When packets are habitually
612 * transmitted out of order, this is allowed for in the retransmission
613 * algorithm by introducing the notion of maximum packet skew: the degree of
614 * out-of-orderness of the packets received on the wire. This number is
615 * communicated from the receiver to the sender in ack packets. */
617 struct rx_ackPacket {
618 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. */
619 u_short maxSkew; /* Maximum difference between serial# of packet acknowledged and highest packet yet received */
620 afs_uint32 firstPacket; /* The first packet in the list of acknowledged packets */
621 afs_uint32 previousPacket; /* The previous packet number received (obsolete?) */
622 afs_uint32 serial; /* Serial number of the packet which prompted the acknowledge */
623 u_char reason; /* Reason for the acknowledge of ackPacket, defined below */
624 u_char nAcks; /* Number of acknowledgements */
625 u_char acks[RX_MAXACKS]; /* Up to RX_MAXACKS packet acknowledgements, defined below */
626 /* 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) */
629 #define FIRSTACKOFFSET 4
631 /* Reason for acknowledge message */
632 #define RX_ACK_REQUESTED 1 /* Peer requested an ack on this packet */
633 #define RX_ACK_DUPLICATE 2 /* Duplicate packet */
634 #define RX_ACK_OUT_OF_SEQUENCE 3 /* Packet out of sequence */
635 #define RX_ACK_EXCEEDS_WINDOW 4 /* Packet sequence number higher than window; discarded */
636 #define RX_ACK_NOSPACE 5 /* No buffer space at all */
637 #define RX_ACK_PING 6 /* This is a keep-alive ack */
638 #define RX_ACK_PING_RESPONSE 7 /* Ack'ing because we were pinged */
639 #define RX_ACK_DELAY 8 /* Ack generated since nothing has happened since receiving packet */
640 #define RX_ACK_IDLE 9 /* Similar to RX_ACK_DELAY, but can
641 * be used to compute RTT */
643 /* Packet acknowledgement type */
644 #define RX_ACK_TYPE_NACK 0 /* I Don't have this packet */
645 #define RX_ACK_TYPE_ACK 1 /* I have this packet, although I may discard it later */
647 /* The packet size transmitted for an acknowledge is adjusted to reflect the actual size of the acks array. This macro defines the size */
648 #define rx_AckDataSize(nAcks) (3 + nAcks + offsetof(struct rx_ackPacket, acks[0]))
650 #define RX_CHALLENGE_TIMEOUT 2 /* Number of seconds before another authentication request packet is generated */
651 #define RX_CHALLENGE_MAXTRIES 50 /* Max # of times we resend challenge */
652 #define RX_CHECKREACH_TIMEOUT 2 /* Number of seconds before another ping is generated */
653 #define RX_CHECKREACH_TTL 60 /* Re-check reachability this often */
655 /* 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 */
657 /* Something bad happened to the connection; temporary loss of communication */
658 #define RX_CALL_DEAD (-1)
660 /* An invalid operation, such as a client attempting to send data after having received the beginning of a reply from the server */
661 #define RX_INVALID_OPERATION (-2)
663 /* An optional timeout per call may be specified */
664 #define RX_CALL_TIMEOUT (-3)
666 /* End of data on a read */
669 /* Some sort of low-level protocol error */
670 #define RX_PROTOCOL_ERROR (-5)
672 /* 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 */
673 #define RX_USER_ABORT (-6)
675 /* Port already in use (from rx_Init) */
676 #define RX_ADDRINUSE (-7)
678 /* EMSGSIZE returned from network. Packet too big, must fragment */
679 #define RX_MSGSIZE (-8)
681 /* transient failure detected ( possibly the server is restarting ) */
682 /* this shud be equal to VRESTARTING ( util/errors.h ) for old clients to work */
683 #define RX_RESTARTING (-100)
685 struct rx_securityObjectStats {
686 char type; /* 0:unk 1:null,2:vab 3:kad */
688 char sparec[10]; /* force correct alignment */
689 afs_int32 flags; /* 1=>unalloc, 2=>auth, 4=>expired */
691 afs_uint32 packetsReceived;
692 afs_uint32 packetsSent;
693 afs_uint32 bytesReceived;
694 afs_uint32 bytesSent;
699 /* Configuration settings */
701 /* Enum for storing configuration variables which can be set via the
702 * SetConfiguration method in the rx_securityClass, below
706 RXS_CONFIG_FLAGS /* afs_uint32 set of bitwise flags */
707 } rx_securityConfigVariables;
709 /* For the RXS_CONFIG_FLAGS, the following bit values are defined */
711 /* Disable the principal name contains dot check in rxkad */
712 #define RXS_CONFIG_FLAGS_DISABLE_DOTCHECK 0x01
714 /* XXXX (rewrite this description) A security class object contains a set of
715 * procedures and some private data to implement a security model for rx
716 * connections. These routines are called by rx as appropriate. Rx knows
717 * nothing about the internal details of any particular security model, or
718 * about security state. Rx does maintain state per connection on behalf of
719 * the security class. Each security class implementation is also expected to
720 * provide routines to create these objects. Rx provides a basic routine to
721 * allocate one of these objects; this routine must be called by the class. */
722 struct rx_securityClass {
723 struct rx_securityOps {
724 int (*op_Close) (struct rx_securityClass * aobj);
725 int (*op_NewConnection) (struct rx_securityClass * aobj,
726 struct rx_connection * aconn);
727 int (*op_PreparePacket) (struct rx_securityClass * aobj,
728 struct rx_call * acall,
729 struct rx_packet * apacket);
730 int (*op_SendPacket) (struct rx_securityClass * aobj,
731 struct rx_call * acall,
732 struct rx_packet * apacket);
733 int (*op_CheckAuthentication) (struct rx_securityClass * aobj,
734 struct rx_connection * aconn);
735 int (*op_CreateChallenge) (struct rx_securityClass * aobj,
736 struct rx_connection * aconn);
737 int (*op_GetChallenge) (struct rx_securityClass * aobj,
738 struct rx_connection * aconn,
739 struct rx_packet * apacket);
740 int (*op_GetResponse) (struct rx_securityClass * aobj,
741 struct rx_connection * aconn,
742 struct rx_packet * apacket);
743 int (*op_CheckResponse) (struct rx_securityClass * aobj,
744 struct rx_connection * aconn,
745 struct rx_packet * apacket);
746 int (*op_CheckPacket) (struct rx_securityClass * aobj,
747 struct rx_call * acall,
748 struct rx_packet * apacket);
749 int (*op_DestroyConnection) (struct rx_securityClass * aobj,
750 struct rx_connection * aconn);
751 int (*op_GetStats) (struct rx_securityClass * aobj,
752 struct rx_connection * aconn,
753 struct rx_securityObjectStats * astats);
754 int (*op_SetConfiguration) (struct rx_securityClass * aobj,
755 struct rx_connection * aconn,
756 rx_securityConfigVariables atype,
758 void ** acurrentValue);
759 int (*op_Spare2) (void);
760 int (*op_Spare3) (void);
766 #define RXS_OP(obj,op,args) ((obj && (obj->ops->op_ ## op)) ? (*(obj)->ops->op_ ## op)args : 0)
768 #define RXS_Close(obj) RXS_OP(obj,Close,(obj))
769 #define RXS_NewConnection(obj,conn) RXS_OP(obj,NewConnection,(obj,conn))
770 #define RXS_PreparePacket(obj,call,packet) RXS_OP(obj,PreparePacket,(obj,call,packet))
771 #define RXS_SendPacket(obj,call,packet) RXS_OP(obj,SendPacket,(obj,call,packet))
772 #define RXS_CheckAuthentication(obj,conn) RXS_OP(obj,CheckAuthentication,(obj,conn))
773 #define RXS_CreateChallenge(obj,conn) RXS_OP(obj,CreateChallenge,(obj,conn))
774 #define RXS_GetChallenge(obj,conn,packet) RXS_OP(obj,GetChallenge,(obj,conn,packet))
775 #define RXS_GetResponse(obj,conn,packet) RXS_OP(obj,GetResponse,(obj,conn,packet))
776 #define RXS_CheckResponse(obj,conn,packet) RXS_OP(obj,CheckResponse,(obj,conn,packet))
777 #define RXS_CheckPacket(obj,call,packet) RXS_OP(obj,CheckPacket,(obj,call,packet))
778 #define RXS_DestroyConnection(obj,conn) RXS_OP(obj,DestroyConnection,(obj,conn))
779 #define RXS_GetStats(obj,conn,stats) RXS_OP(obj,GetStats,(obj,conn,stats))
780 #define RXS_SetConfiguration(obj, conn, type, value, currentValue) RXS_OP(obj, SetConfiguration,(obj,conn,type,value,currentValue))
783 /* Structure for keeping rx statistics. Note that this structure is returned
784 * by rxdebug, so, for compatibility reasons, new fields should be appended (or
785 * spares used), the rxdebug protocol checked, if necessary, and the PrintStats
786 * code should be updated as well.
788 * Clearly we assume that ntohl will work on these structures so sizeof(int)
789 * must equal sizeof(afs_int32). */
791 struct rx_stats { /* General rx statistics */
792 int packetRequests; /* Number of packet allocation requests */
793 int receivePktAllocFailures;
794 int sendPktAllocFailures;
795 int specialPktAllocFailures;
796 int socketGreedy; /* Whether SO_GREEDY succeeded */
797 int bogusPacketOnRead; /* Number of inappropriately short packets received */
798 int bogusHost; /* Host address from bogus packets */
799 int noPacketOnRead; /* Number of read packets attempted when there was actually no packet to read off the wire */
800 int noPacketBuffersOnRead; /* Number of dropped data packets due to lack of packet buffers */
801 int selects; /* Number of selects waiting for packet or timeout */
802 int sendSelects; /* Number of selects forced when sending packet */
803 int packetsRead[RX_N_PACKET_TYPES]; /* Total number of packets read, per type */
804 int dataPacketsRead; /* Number of unique data packets read off the wire */
805 int ackPacketsRead; /* Number of ack packets read */
806 int dupPacketsRead; /* Number of duplicate data packets read */
807 int spuriousPacketsRead; /* Number of inappropriate data packets */
808 int packetsSent[RX_N_PACKET_TYPES]; /* Number of rxi_Sends: packets sent over the wire, per type */
809 int ackPacketsSent; /* Number of acks sent */
810 int pingPacketsSent; /* Total number of ping packets sent */
811 int abortPacketsSent; /* Total number of aborts */
812 int busyPacketsSent; /* Total number of busies sent received */
813 int dataPacketsSent; /* Number of unique data packets sent */
814 int dataPacketsReSent; /* Number of retransmissions */
815 int dataPacketsPushed; /* Number of retransmissions pushed early by a NACK */
816 int ignoreAckedPacket; /* Number of packets with acked flag, on rxi_Start */
817 struct clock totalRtt; /* Total round trip time measured (use to compute average) */
818 struct clock minRtt; /* Minimum round trip time measured */
819 struct clock maxRtt; /* Maximum round trip time measured */
820 int nRttSamples; /* Total number of round trip samples */
821 int nServerConns; /* Total number of server connections */
822 int nClientConns; /* Total number of client connections */
823 int nPeerStructs; /* Total number of peer structures */
824 int nCallStructs; /* Total number of call structures allocated */
825 int nFreeCallStructs; /* Total number of previously allocated free call structures */
827 afs_int32 fatalErrors;
828 int ignorePacketDally; /* packets dropped because call is in dally state */
829 int receiveCbufPktAllocFailures;
830 int sendCbufPktAllocFailures;
835 /* structures for debug input and output packets */
837 /* debug input types */
843 /* Invalid rx debug package type */
844 #define RX_DEBUGI_BADTYPE (-8)
846 #define RX_DEBUGI_VERSION_MINIMUM ('L') /* earliest real version */
847 #define RX_DEBUGI_VERSION ('R') /* Latest version */
848 /* first version w/ secStats */
849 #define RX_DEBUGI_VERSION_W_SECSTATS ('L')
850 /* version M is first supporting GETALLCONN and RXSTATS type */
851 #define RX_DEBUGI_VERSION_W_GETALLCONN ('M')
852 #define RX_DEBUGI_VERSION_W_RXSTATS ('M')
853 /* last version with unaligned debugConn */
854 #define RX_DEBUGI_VERSION_W_UNALIGNED_CONN ('L')
855 #define RX_DEBUGI_VERSION_W_WAITERS ('N')
856 #define RX_DEBUGI_VERSION_W_IDLETHREADS ('O')
857 #define RX_DEBUGI_VERSION_W_NEWPACKETTYPES ('P')
858 #define RX_DEBUGI_VERSION_W_GETPEER ('Q')
859 #define RX_DEBUGI_VERSION_W_WAITED ('R')
861 #define RX_DEBUGI_GETSTATS 1 /* get basic rx stats */
862 #define RX_DEBUGI_GETCONN 2 /* get connection info */
863 #define RX_DEBUGI_GETALLCONN 3 /* get even uninteresting conns */
864 #define RX_DEBUGI_RXSTATS 4 /* get all rx stats */
865 #define RX_DEBUGI_GETPEER 5 /* get all peer structs */
867 struct rx_debugStats {
868 afs_int32 nFreePackets;
869 afs_int32 packetReclaims;
870 afs_int32 callsExecuted;
871 char waitingForPackets;
876 afs_int32 idleThreads; /* Number of server threads that are idle */
881 struct rx_debugConn_vL {
885 afs_int32 callNumber[RX_MAXCALLS];
891 char callState[RX_MAXCALLS];
892 char callMode[RX_MAXCALLS];
893 char callFlags[RX_MAXCALLS];
894 char callOther[RX_MAXCALLS];
895 /* old style getconn stops here */
896 struct rx_securityObjectStats secStats;
897 afs_int32 sparel[10];
900 struct rx_debugConn {
904 afs_int32 callNumber[RX_MAXCALLS];
910 char sparec[3]; /* force correct alignment */
911 char callState[RX_MAXCALLS];
912 char callMode[RX_MAXCALLS];
913 char callFlags[RX_MAXCALLS];
914 char callOther[RX_MAXCALLS];
915 /* old style getconn stops here */
916 struct rx_securityObjectStats secStats;
922 struct rx_debugPeer {
930 struct clock burstWait;
933 struct clock timeout;
936 afs_int32 inPacketSkew;
937 afs_int32 outPacketSkew;
941 u_short maxDgramPackets;
942 u_short ifDgramPackets;
945 u_short nDgramPackets;
947 afs_hyper_t bytesSent;
948 afs_hyper_t bytesReceived;
949 afs_int32 sparel[10];
952 #define RX_OTHER_IN 1 /* packets avail in in queue */
953 #define RX_OTHER_OUT 2 /* packets avail in out queue */
957 /* Only include this once, even when re-loading for kdump. */
958 #ifndef _CALL_REF_DEFINED_
959 #define _CALL_REF_DEFINED_
961 #ifdef RX_ENABLE_LOCKS
962 #ifdef RX_REFCOUNT_CHECK
963 /* RX_REFCOUNT_CHECK is used to test for call refcount leaks by event
966 extern int rx_callHoldType;
967 #define CALL_HOLD(call, type) do { \
969 call->refCDebug[type]++; \
970 if (call->refCDebug[type] > 50) {\
971 rx_callHoldType = type; \
972 osi_Panic("Huge call refCount"); \
975 #define CALL_RELE(call, type) do { \
977 call->refCDebug[type]--; \
978 if (call->refCDebug[type] > 50) {\
979 rx_callHoldType = type; \
980 osi_Panic("Negative call refCount"); \
983 #else /* RX_REFCOUNT_CHECK */
984 #define CALL_HOLD(call, type) call->refCount++
985 #define CALL_RELE(call, type) call->refCount--
986 #endif /* RX_REFCOUNT_CHECK */
988 #else /* RX_ENABLE_LOCKS */
989 #define CALL_HOLD(call, type)
990 #define CALL_RELE(call, type)
991 #endif /* RX_ENABLE_LOCKS */
993 #endif /* _CALL_REF_DEFINED_ */
995 #define RX_SERVER_DEBUG_SEC_STATS 0x1
996 #define RX_SERVER_DEBUG_ALL_CONN 0x2
997 #define RX_SERVER_DEBUG_RX_STATS 0x4
998 #define RX_SERVER_DEBUG_WAITER_CNT 0x8
999 #define RX_SERVER_DEBUG_IDLE_THREADS 0x10
1000 #define RX_SERVER_DEBUG_OLD_CONN 0x20
1001 #define RX_SERVER_DEBUG_NEW_PACKETS 0x40
1002 #define RX_SERVER_DEBUG_ALL_PEER 0x80
1003 #define RX_SERVER_DEBUG_WAITED_CNT 0x100
1005 #define AFS_RX_STATS_CLEAR_ALL 0xffffffff
1006 #define AFS_RX_STATS_CLEAR_INVOCATIONS 0x1
1007 #define AFS_RX_STATS_CLEAR_BYTES_SENT 0x2
1008 #define AFS_RX_STATS_CLEAR_BYTES_RCVD 0x4
1009 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SUM 0x8
1010 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SQUARE 0x10
1011 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MIN 0x20
1012 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MAX 0x40
1013 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SUM 0x80
1014 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SQUARE 0x100
1015 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MIN 0x200
1016 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MAX 0x400
1018 typedef struct rx_function_entry_v1 {
1019 afs_uint32 remote_peer;
1020 afs_uint32 remote_port;
1021 afs_uint32 remote_is_server;
1022 afs_uint32 interfaceId;
1023 afs_uint32 func_total;
1024 afs_uint32 func_index;
1025 afs_hyper_t invocations;
1026 afs_hyper_t bytes_sent;
1027 afs_hyper_t bytes_rcvd;
1028 struct clock queue_time_sum;
1029 struct clock queue_time_sum_sqr;
1030 struct clock queue_time_min;
1031 struct clock queue_time_max;
1032 struct clock execution_time_sum;
1033 struct clock execution_time_sum_sqr;
1034 struct clock execution_time_min;
1035 struct clock execution_time_max;
1036 } rx_function_entry_v1_t, *rx_function_entry_v1_p;
1039 * If you need to change rx_function_entry, you should probably create a brand
1040 * new structure. Keeping the old structure will allow backwards compatibility
1041 * with old clients (even if it is only used to calculate allocation size).
1042 * If you do change the size or the format, you'll need to bump
1043 * RX_STATS_RETRIEVAL_VERSION. This allows some primitive form
1044 * of versioning a la rxdebug.
1047 #define RX_STATS_RETRIEVAL_VERSION 1 /* latest version */
1048 #define RX_STATS_RETRIEVAL_FIRST_EDITION 1 /* first implementation */
1050 typedef struct rx_interface_stat {
1051 struct rx_queue queue_header;
1052 struct rx_queue all_peers;
1053 rx_function_entry_v1_t stats[1]; /* make sure this is aligned correctly */
1054 } rx_interface_stat_t, *rx_interface_stat_p;
1056 #define RX_STATS_SERVICE_ID 409
1060 #endif /* _RX_ End of rx.h */
1063 #include "rx/rx_prototypes.h"
1065 #include "rx_prototypes.h"
1068 #endif /* !KDUMP_RX_LOCK */
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