src/rx/rx.h

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   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
   8  */
   9
  10 #ifdef KDUMP_RX_LOCK
  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.
  18  */
  19 #undef _RX_
  20 #endif
  21
  22 #ifndef _RX_
  23 #define _RX_
  24
  25 #ifndef KDUMP_RX_LOCK
  26 #ifdef  KERNEL
  27 #include "rx_kmutex.h"
  28 #include "rx_kernel.h"
  29 #if defined (AFS_OBSD_ENV) && !defined (MLEN)
  30 #include "sys/mbuf.h"
  31 #endif
  32 #include "netinet/in.h"
  33 #include "sys/socket.h"
  34 #else /* KERNEL */
  35 # include <sys/types.h>
  36 # include <stdio.h>
  37 # include <string.h>
  38 #ifdef AFS_PTHREAD_ENV
  39 # include "rx_pthread.h"
  40 #else
  41 # include "rx_lwp.h"
  42 #endif
  43 #ifdef AFS_NT40_ENV
  44 #include <malloc.h>
  45 #include <winsock2.h>
  46 #include <ws2tcpip.h>
  47 #endif
  48 # include "rx_user.h"
  49 #ifndef AFS_NT40_ENV
  50 # include <netinet/in.h>
  51 # include <sys/socket.h>
  52 #endif
  53 #endif /* KERNEL */
  54
  55 #include <opr/queue.h>
  56
  57 #include "rx_clock.h"
  58 #include "rx_event.h"
  59 #include "rx_misc.h"
  60 #include "rx_null.h"
  61 #include "rx_multi.h"
  62
  63 /* These items are part of the new RX API. They're living in this section
  64  * for now, to keep them separate from everything else... */
  65
  66 struct rx_connection;
  67 struct rx_call;
  68 struct rx_packet;
  69
  70 /* Connection management */
  71
  72 extern afs_uint32  rx_GetConnectionEpoch(struct rx_connection *conn);
  73 extern afs_uint32  rx_GetConnectionId(struct rx_connection *conn);
  74 extern void *rx_GetSecurityData(struct rx_connection *conn);
  75 extern void  rx_SetSecurityData(struct rx_connection *conn, void *data);
  76 extern int  rx_IsUsingPktCksum(struct rx_connection *conn);
  77 extern void rx_SetSecurityHeaderSize(struct rx_connection *conn, afs_uint32 size);
  78 extern afs_uint32  rx_GetSecurityHeaderSize(struct rx_connection *conn);
  79 extern void rx_SetSecurityMaxTrailerSize(struct rx_connection *conn, afs_uint32 size);
  80 extern afs_uint32  rx_GetSecurityMaxTrailerSize(struct rx_connection *conn);
  81 extern void rx_SetMsgsizeRetryErr(struct rx_connection *conn, int err);
  82 extern int  rx_IsServerConn(struct rx_connection *conn);
  83 extern int  rx_IsClientConn(struct rx_connection *conn);
  84 extern struct rx_securityClass *rx_SecurityObjectOf(const struct rx_connection *);
  85 extern struct rx_peer *rx_PeerOf(struct rx_connection *);
  86 extern u_short rx_ServiceIdOf(struct rx_connection *);
  87 extern int rx_SecurityClassOf(struct rx_connection *);
  88 extern struct rx_service *rx_ServiceOf(struct rx_connection *);
  89 extern int rx_ConnError(struct rx_connection *);
  90
  91 /* Call management */
  92 extern struct rx_connection *rx_ConnectionOf(struct rx_call *call);
  93 extern int rx_Error(struct rx_call *call);
  94 extern int rx_GetRemoteStatus(struct rx_call *call);
  95 extern void rx_SetLocalStatus(struct rx_call *call, int status);
  96 extern int rx_GetCallAbortCode(struct rx_call *call);
  97 extern void rx_SetCallAbortCode(struct rx_call *call, int code);
  98
  99 extern void rx_RecordCallStatistics(struct rx_call *call,
 100                                     unsigned int rxInterface,
 101                                     unsigned int currentFunc,
 102                                     unsigned int totalFunc,
 103                                     int isServer);
 104
 105 extern void rx_GetCallStatus(struct rx_call *call,
 106                              afs_int32 *readNext,
 107                              afs_int32 *transmitNext,
 108                              int *lastSendTime,
 109                              int *lastReceiveTime);
 110 /* Peer management */
 111 extern afs_uint32 rx_HostOf(struct rx_peer *peer);
 112 extern u_short rx_PortOf(struct rx_peer *peer);
 113
 114 /* Packets */
 115
 116 /* Packet classes, for rx_AllocPacket and rx_packetQuota */
 117 #define RX_PACKET_CLASS_RECEIVE     0
 118 #define RX_PACKET_CLASS_SEND        1
 119 #define RX_PACKET_CLASS_SPECIAL     2
 120 #define RX_PACKET_CLASS_RECV_CBUF   3
 121 #define RX_PACKET_CLASS_SEND_CBUF   4
 122
 123 #define RX_N_PACKET_CLASSES         5   /* Must agree with above list */
 124
 125 #define RX_PACKET_TYPES     {"data", "ack", "busy", "abort", "ackall", "challenge", "response", "debug", "params", "unused", "unused", "unused", "version"}
 126 #define RX_N_PACKET_TYPES           13  /* Must agree with above list;
 127                                          * counts 0
 128                                          * WARNING: if this number ever
 129                                          * grows past 13, rxdebug packets
 130                                          * will need to be modified */
 131
 132
 133 /* For most Unixes, maximum elements in an iovec is 16 */
 134 #define RX_MAXIOVECS 16                 /* limit for ReadvProc/WritevProc */
 135 #define RX_MAXWVECS (RX_MAXIOVECS-1)    /* need one iovec for packet header */
 136
 137 /* Debugging */
 138
 139 /* Call flags, states and modes are exposed by the debug interface */
 140 #ifndef KDUMP_RX_LOCK
 141 /* Major call states */
 142 #define RX_STATE_NOTINIT  0     /* Call structure has never been initialized */
 143 #define RX_STATE_PRECALL  1     /* Server-only:  call is not in progress, but packets have arrived */
 144 #define RX_STATE_ACTIVE   2     /* An active call; a process is dealing with this call */
 145 #define RX_STATE_DALLY    3     /* Dallying after process is done with call */
 146 #define RX_STATE_HOLD     4     /* Waiting for acks on reply data packets */
 147 #define RX_STATE_RESET    5     /* Call is being reset */
 148
 149 /* Call modes:  the modes of a call in RX_STATE_ACTIVE state (process attached) */
 150 #define RX_MODE_SENDING   1     /* Sending or ready to send */
 151 #define RX_MODE_RECEIVING 2     /* Receiving or ready to receive */
 152 #define RX_MODE_ERROR     3     /* Something in error for current conversation */
 153 #define RX_MODE_EOF       4     /* Server has flushed (or client has read) last reply packet */
 154
 155 /* Flags */
 156 #define RX_CALL_READER_WAIT        1    /* Reader is waiting for next packet */
 157 #define RX_CALL_WAIT_WINDOW_ALLOC  2    /* Sender is waiting for window to allocate buffers */
 158 #define RX_CALL_WAIT_WINDOW_SEND   4    /* Sender is waiting for window to send buffers */
 159 #define RX_CALL_WAIT_PACKETS       8    /* Sender is waiting for packet buffers */
 160 #define RX_CALL_WAIT_PROC         16    /* Waiting for a process to be assigned */
 161 #define RX_CALL_RECEIVE_DONE      32    /* All packets received on this call */
 162 #define RX_CALL_CLEARED           64    /* Receive queue cleared in precall state */
 163 #define RX_CALL_TQ_BUSY          128    /* Call's Xmit Queue is busy; don't modify */
 164 #define RX_CALL_TQ_CLEARME       256    /* Need to clear this call's TQ later */
 165 #define RX_CALL_TQ_SOME_ACKED    512    /* rxi_Start needs to discard ack'd packets. */
 166 #define RX_CALL_TQ_WAIT         1024    /* Reader is waiting for TQ_BUSY to be reset */
 167 #define RX_CALL_FAST_RECOVER    2048    /* call is doing congestion recovery */
 168 /* 4096 was RX_CALL_FAST_RECOVER_WAIT */
 169 #define RX_CALL_SLOW_START_OK   8192    /* receiver acks every other packet */
 170 #define RX_CALL_IOVEC_WAIT      16384   /* waiting thread is using an iovec */
 171 #define RX_CALL_HAVE_LAST       32768   /* Last packet has been received */
 172 #define RX_CALL_NEED_START      0x10000 /* tells rxi_Start to start again */
 173 /* 0x20000 was RX_CALL_PEER_BUSY */
 174 #define RX_CALL_ACKALL_SENT     0x40000 /* ACKALL has been sent on the call */
 175 #define RX_CALL_FLUSH           0x80000 /* Transmit queue should be flushed to peer */
 176 #endif
 177
 178
 179 /* Configurable parameters */
 180 #define RX_IDLE_DEAD_TIME       60      /* default idle dead time */
 181 #define RX_MAX_SERVICES         20      /* Maximum number of services that may be installed */
 182 #if defined(KERNEL) && defined(AFS_AIX51_ENV) && defined(__64__)
 183 #define RX_DEFAULT_STACK_SIZE   24000
 184 #else
 185 #define RX_DEFAULT_STACK_SIZE   16000   /* Default process stack size; overriden by rx_SetStackSize */
 186 #endif
 187
 188 /* This parameter should not normally be changed */
 189 #define RX_PROCESS_PRIORITY     LWP_NORMAL_PRIORITY
 190
 191 #define ADDRSPERSITE 16
 192
 193 #ifndef KDUMP_RX_LOCK
 194 /* Bottom n-bits of the Call Identifier give the call number */
 195 #define RX_MAXCALLS 4           /* Power of 2; max async calls per connection */
 196 #define RX_CIDSHIFT 2           /* Log2(RX_MAXCALLS) */
 197 #define RX_CHANNELMASK (RX_MAXCALLS-1)
 198 #define RX_CIDMASK  (~RX_CHANNELMASK)
 199 #endif /* !KDUMP_RX_LOCK */
 200
 201 #ifndef KERNEL
 202 typedef void (*rx_destructor_t) (void *);
 203 int rx_KeyCreate(rx_destructor_t);
 204 osi_socket rxi_GetHostUDPSocket(u_int host, u_short port);
 205 osi_socket rxi_GetUDPSocket(u_short port);
 206 #endif /* KERNEL */
 207
 208
 209 int ntoh_syserr_conv(int error);
 210
 211 #define RX_WAIT     1
 212 #define RX_DONTWAIT 0
 213
 214 #define rx_GetLocalStatus(call, status) ((call)->localStatus)
 215
 216
 217 static_inline int
 218 rx_IsLoopbackAddr(afs_uint32 addr)
 219 {
 220     return ((addr & 0xffff0000) == 0x7f000000);
 221 }
 222
 223 /*******************
 224  * Macros callable by the user to further define attributes of a
 225  * service.  Must be called before rx_StartServer
 226  */
 227
 228 /* Set the service stack size.  This currently just sets the stack
 229  * size for all processes to be the maximum seen, so far */
 230 #define rx_SetStackSize(service, stackSize) \
 231   rx_stackSize = (((stackSize) > rx_stackSize)? stackSize: rx_stackSize)
 232
 233 /* Set minimum number of processes guaranteed to be available for this
 234  * service at all times */
 235 #define rx_SetMinProcs(service, min) ((service)->minProcs = (min))
 236
 237 /* Set maximum number of processes that will be made available to this
 238  * service (also a guarantee that this number will be made available
 239  * if there is no competition) */
 240 #define rx_SetMaxProcs(service, max) ((service)->maxProcs = (max))
 241
 242 /* Define a procedure to be called just before a server connection is destroyed */
 243 #define rx_SetDestroyConnProc(service,proc) ((service)->destroyConnProc = (proc))
 244
 245 /* Define procedure to set service dead time */
 246 #define rx_SetIdleDeadTime(service,time) ((service)->idleDeadTime = (time))
 247
 248 /* Define procedures for getting and setting before and after execute-request procs */
 249 #define rx_SetAfterProc(service,proc) ((service)->afterProc = (proc))
 250 #define rx_SetBeforeProc(service,proc) ((service)->beforeProc = (proc))
 251 #define rx_GetAfterProc(service) ((service)->afterProc)
 252 #define rx_GetBeforeProc(service) ((service)->beforeProc)
 253 #define rx_SetPostProc(service,proc) ((service)->postProc = (proc))
 254 #define rx_GetPostProc(service) ((service)->postProc)
 255
 256 /* Define a procedure to be called when a server connection is created */
 257 #define rx_SetNewConnProc(service, proc) ((service)->newConnProc = (proc))
 258
 259 /* NOTE:  We'll probably redefine the following three routines, again, sometime. */
 260
 261 /* Set the connection dead time for any connections created for this service (server only) */
 262 #define rx_SetServiceDeadTime(service, seconds) ((service)->secondsUntilDead = (seconds))
 263
 264 /* Enable or disable asymmetric client checking for a service */
 265 #define rx_SetCheckReach(service, x) ((service)->checkReach = (x))
 266
 267 /* Set the overload threshold and the overload error */
 268 #define rx_SetBusyThreshold(threshold, code) (rx_BusyThreshold=(threshold),rx_BusyError=(code))
 269
 270 /* If this flag is set,no new requests are processed by rx, all new requests are
 271 returned with an error code of RX_CALL_DEAD ( transient error ) */
 272 #define rx_SetRxTranquil()              (rx_tranquil = 1)
 273 #define rx_ClearRxTranquil()            (rx_tranquil = 0)
 274
 275 /* Set the threshold and time to delay aborts for consecutive errors */
 276 #define rx_SetCallAbortThreshold(A) (rxi_callAbortThreshhold = (A))
 277 #define rx_SetCallAbortDelay(A) (rxi_callAbortDelay = (A))
 278 #define rx_SetConnAbortThreshold(A) (rxi_connAbortThreshhold = (A))
 279 #define rx_SetConnAbortDelay(A) (rxi_connAbortDelay = (A))
 280
 281
 282
 283 #define cpspace(call) ((call)->curlen)
 284 #define cppos(call) ((call)->curpos)
 285
 286 #define rx_Read(call, buf, nbytes)   rx_ReadProc(call, buf, nbytes)
 287 #define rx_Read32(call, value)   rx_ReadProc32(call, value)
 288 #define rx_Readv(call, iov, nio, maxio, nbytes) \
 289    rx_ReadvProc(call, iov, nio, maxio, nbytes)
 290 #define rx_Write(call, buf, nbytes) rx_WriteProc(call, buf, nbytes)
 291 #define rx_Write32(call, value) rx_WriteProc32(call, value)
 292 #define rx_Writev(call, iov, nio, nbytes) \
 293    rx_WritevProc(call, iov, nio, nbytes)
 294
 295 /* This is the maximum size data packet that can be sent on this connection, accounting for security module-specific overheads. */
 296 #define rx_MaxUserDataSize(call)                ((call)->MTU - RX_HEADER_SIZE - (call)->conn->securityHeaderSize - (call)->conn->securityMaxTrailerSize)
 297
 298 /* Macros to turn the hot thread feature on and off. Enabling hot threads
 299  * allows the listener thread to trade places with an idle worker thread,
 300  * which moves the context switch from listener to worker out of the
 301  * critical path.
 302  */
 303 #define rx_EnableHotThread()            (rx_enable_hot_thread = 1)
 304 #define rx_DisableHotThread()           (rx_enable_hot_thread = 0)
 305
 306 #define rx_PutConnection(conn) rx_DestroyConnection(conn)
 307
 308 /* A service is installed by rx_NewService, and specifies a service type that
 309  * is exported by this process.  Incoming calls are stamped with the service
 310  * type, and must match an installed service for the call to be accepted.
 311  * Each service exported has a (port,serviceId) pair to uniquely identify it.
 312  * It is also named:  this is intended to allow a remote statistics gathering
 313  * program to retrieve per service statistics without having to know the local
 314  * service id's.  Each service has a number of
 315  */
 316
 317 /* security objects (instances of security classes) which implement
 318  * various types of end-to-end security protocols for connections made
 319  * to this service.  Finally, there are two parameters controlling the
 320  * number of requests which may be executed in parallel by this
 321  * service: minProcs is the number of requests to this service which
 322  * are guaranteed to be able to run in parallel at any time; maxProcs
 323  * has two meanings: it limits the total number of requests which may
 324  * execute in parallel and it also guarantees that that many requests
 325  * may be handled in parallel if no other service is handling any
 326  * requests. */
 327
 328 struct rx_service {
 329     u_short serviceId;          /* Service number */
 330     afs_uint32 serviceHost;     /* IP address for this service */
 331     u_short servicePort;        /* UDP port for this service */
 332     char *serviceName;          /* Name of the service */
 333     osi_socket socket;          /* socket structure or file descriptor */
 334     u_short nRequestsRunning;   /* Number of requests currently in progress */
 335     u_short nSecurityObjects;   /* Number of entries in security objects array */
 336     struct rx_securityClass **securityObjects;  /* Array of security class objects */
 337       afs_int32(*executeRequestProc) (struct rx_call * acall);  /* Routine to call when an rpc request is received */
 338     void (*destroyConnProc) (struct rx_connection * tcon);      /* Routine to call when a server connection is destroyed */
 339     void (*newConnProc) (struct rx_connection * tcon);  /* Routine to call when a server connection is created */
 340     void (*beforeProc) (struct rx_call * acall);        /* routine to call before a call is executed */
 341     void (*afterProc) (struct rx_call * acall, afs_int32 code); /* routine to call after a call is executed */
 342     void (*postProc) (afs_int32 code);  /* routine to call after the call has ended */
 343     u_short maxProcs;           /* Maximum procs to be used for this service */
 344     u_short minProcs;           /* Minimum # of requests guaranteed executable simultaneously */
 345     u_short connDeadTime;       /* Seconds until a client of this service will be declared dead, if it is not responding */
 346     u_short idleDeadTime;       /* Time a server will wait for I/O to start up again */
 347     u_char checkReach;          /* Check for asymmetric clients? */
 348     int nSpecific;              /* number entries in specific data */
 349     void **specific;            /* pointer to connection specific data */
 350 #ifdef  RX_ENABLE_LOCKS
 351     afs_kmutex_t svc_data_lock; /* protect specific data */
 352 #endif
 353
 354 };
 355
 356 #endif /* KDUMP_RX_LOCK */
 357
 358 #ifndef KDUMP_RX_LOCK
 359 /* Flag bits for connection structure */
 360 #define RX_CONN_MAKECALL_WAITING    1   /* rx_NewCall is waiting for a channel */
 361 #define RX_CONN_DESTROY_ME          2   /* Destroy *client* connection after last call */
 362 #define RX_CONN_USING_PACKET_CKSUM  4   /* non-zero header.spare field seen */
 363 #define RX_CONN_KNOW_WINDOW         8   /* window size negotiation works */
 364 #define RX_CONN_RESET              16   /* connection is reset, remove */
 365 #define RX_CONN_BUSY               32   /* connection is busy; don't delete */
 366 #define RX_CONN_ATTACHWAIT         64   /* attach waiting for peer->lastReach */
 367 #define RX_CONN_MAKECALL_ACTIVE   128   /* a thread is actively in rx_NewCall */
 368 #define RX_CONN_NAT_PING          256   /* nat ping requested */
 369
 370 /* Type of connection, client or server */
 371 #define RX_CLIENT_CONNECTION    0
 372 #define RX_SERVER_CONNECTION    1
 373 #endif /* !KDUMP_RX_LOCK */
 374
 375 /* Maximum number of acknowledgements in an acknowledge packet */
 376 #define RX_MAXACKS          255
 377
 378 #ifndef KDUMP_RX_LOCK
 379
 380 /* The structure of the data portion of an acknowledge packet: An acknowledge
 381  * packet is in network byte order at all times.  An acknowledgement is always
 382  * prompted for a specific reason by a specific incoming packet.  This reason
 383  * is reported in "reason" and the packet's sequence number in the packet
 384  * header.seq.  In addition to this information, all of the current
 385  * acknowledgement information about this call is placed in the packet.
 386  * "FirstPacket" is the sequence number of the first packet represented in an
 387  * array of bytes, "acks", containing acknowledgement information for a number
 388  * of consecutive packets.  All packets prior to FirstPacket are implicitly
 389  * acknowledged: the sender need no longer be concerned about them.  Packets
 390  * from firstPacket+nAcks and on are not acknowledged.  Packets in the range
 391  * [firstPacket,firstPacket+nAcks) are each acknowledged explicitly.  The
 392  * acknowledgement may be RX_NACK if the packet is not (currently) at the
 393  * receiver (it may have never been received, or received and then later
 394  * dropped), or it may be RX_ACK if the packet is queued up waiting to be read
 395  * by the upper level software.  RX_ACK does not imply that the packet may not
 396  * be dropped before it is read; it does imply that the sender should stop
 397  * retransmitting the packet until notified otherwise.  The field
 398  * previousPacket identifies the previous packet received by the peer.  This
 399  * was used in a previous version of this software, and could be used in the
 400  * future.  The serial number in the data part of the ack packet corresponds to
 401  * the serial number oof the packet which prompted the acknowledge.  Any
 402  * packets which are explicitly not acknowledged, and which were last
 403  * transmitted with a serial number less than the provided serial number,
 404  * should be retransmitted immediately.  Actually, this is slightly inaccurate:
 405  * packets are not necessarily received in order.  When packets are habitually
 406  * transmitted out of order, this is allowed for in the retransmission
 407  * algorithm by introducing the notion of maximum packet skew: the degree of
 408  * out-of-orderness of the packets received on the wire.  This number is
 409  * communicated from the receiver to the sender in ack packets. */
 410
 411 struct rx_ackPacket {
 412     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. */
 413     u_short maxSkew;            /* Maximum difference between serial# of packet acknowledged and highest packet yet received */
 414     afs_uint32 firstPacket;     /* The first packet in the list of acknowledged packets */
 415     afs_uint32 previousPacket;  /* The previous packet number received (obsolete?) */
 416     afs_uint32 serial;          /* Serial number of the packet which prompted the acknowledge */
 417     u_char reason;              /* Reason for the acknowledge of ackPacket, defined below */
 418     u_char nAcks;               /* Number of acknowledgements */
 419     u_char acks[RX_MAXACKS];    /* Up to RX_MAXACKS packet acknowledgements, defined below */
 420     /* 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) */
 421 };
 422
 423 #define FIRSTACKOFFSET 4
 424
 425 /* Reason for acknowledge message */
 426 #define RX_ACK_REQUESTED        1       /* Peer requested an ack on this packet */
 427 #define RX_ACK_DUPLICATE        2       /* Duplicate packet */
 428 #define RX_ACK_OUT_OF_SEQUENCE  3       /* Packet out of sequence */
 429 #define RX_ACK_EXCEEDS_WINDOW   4       /* Packet sequence number higher than window; discarded */
 430 #define RX_ACK_NOSPACE          5       /* No buffer space at all */
 431 #define RX_ACK_PING             6       /* This is a keep-alive ack */
 432 #define RX_ACK_PING_RESPONSE    7       /* Ack'ing because we were pinged */
 433 #define RX_ACK_DELAY            8       /* Ack generated since nothing has happened since receiving packet */
 434 #define RX_ACK_IDLE             9       /* Similar to RX_ACK_DELAY, but can
 435                                          * be used to compute RTT */
 436 #define RX_ACK_MTU             -1       /* will be rewritten to ACK_PING */
 437
 438 /* Packet acknowledgement type */
 439 #define RX_ACK_TYPE_NACK        0       /* I Don't have this packet */
 440 #define RX_ACK_TYPE_ACK         1       /* I have this packet, although I may discard it later */
 441
 442 /* The packet size transmitted for an acknowledge is adjusted to reflect the actual size of the acks array.  This macro defines the size */
 443 #define rx_AckDataSize(nAcks) (3 + nAcks + offsetof(struct rx_ackPacket, acks[0]))
 444
 445 #define RX_CHALLENGE_TIMEOUT    2       /* Number of seconds before another authentication request packet is generated */
 446 #define RX_CHALLENGE_MAXTRIES   50      /* Max # of times we resend challenge */
 447 #define RX_CHECKREACH_TIMEOUT   2       /* Number of seconds before another ping is generated */
 448 #define RX_CHECKREACH_TTL       60      /* Re-check reachability this often */
 449
 450 /*
 451  * rx_GetNetworkError 'origin' constants. These define the meaning of the
 452  * 'type' and 'code' values returned by rx_GetNetworkError.
 453  */
 454
 455 /* Used for ICMP errors; the type and code are the ICMP type and code,
 456  * respectively */
 457 #define RX_NETWORK_ERROR_ORIGIN_ICMP (0)
 458
 459 /*
 460  * RX error codes.  RX uses error codes from -1 to -64 and -100.
 461  * Rxgen uses other error codes < -64 (see src/rxgen/rpc_errors.h);
 462  * user programs are expected to return positive error codes
 463  */
 464
 465 /* Something bad happened to the connection; temporary loss of communication */
 466 #define RX_CALL_DEAD                (-1)
 467
 468 /*
 469  * An invalid operation, such as a client attempting to send data
 470  * after having received the beginning of a reply from the server.
 471  */
 472 #define RX_INVALID_OPERATION        (-2)
 473
 474 /* An optional timeout per call may be specified */
 475 #define RX_CALL_TIMEOUT             (-3)
 476
 477 /* End of data on a read.  Not currently in use. */
 478 #define RX_EOF                      (-4)
 479
 480 /* Some sort of low-level protocol error. */
 481 #define RX_PROTOCOL_ERROR           (-5)
 482
 483 /*
 484  * Generic user abort code; used when no more specific error code needs to be
 485  * communicated.  For example, multi rx clients use this code to abort a multi-
 486  * rx call.
 487  */
 488 #define RX_USER_ABORT               (-6)
 489
 490 /* Port already in use (from rx_Init).  This error is never sent on the wire. */
 491 #define RX_ADDRINUSE                (-7)
 492
 493 /* EMSGSIZE returned from network.  Packet too big, must fragment */
 494 #define RX_MSGSIZE                  (-8)
 495
 496 /* The value -9 was previously used for RX_CALL_IDLE but is now free for
 497  * reuse. */
 498
 499 /* The value -10 was previously used for RX_CALL_BUSY but is now free for
 500  * reuse. */
 501
 502 /* transient failure detected ( possibly the server is restarting ) */
 503 /* this should be equal to VRESTARTING ( util/errors.h ) for old clients to work */
 504 #define RX_RESTARTING               (-100)
 505
 506 typedef enum {
 507     RX_SECIDX_NULL = 0,         /** rxnull, no security. */
 508     RX_SECIDX_VAB  = 1,         /** vice tokens with bcrypt.  Unused. */
 509     RX_SECIDX_KAD  = 2,         /** kerberos/DES. */
 510     RX_SECIDX_KAE  = 3,         /** rxkad, but always encrypt. */
 511     RX_SECIDX_GK   = 4,         /** rxgk, RFC 3961 crypto. */
 512     RX_SECIDX_K5   = 5,         /** kerberos 5 tickets as tokens. */
 513 } rx_securityIndex;
 514
 515 /*
 516  * We use an enum for the symbol definitions but have no need for a typedef
 517  * because the enum is at least as wide as 'int' and these have to fit into
 518  * a field of type 'char'.  Direct assigment will do the right thing if the
 519  * enum value fits into that type.
 520  */
 521 enum {
 522     RX_SECTYPE_UNK = 0,
 523     RX_SECTYPE_NULL = 1,
 524     RX_SECTYPE_VAB = 2,
 525     RX_SECTYPE_KAD = 3,
 526 };
 527 struct rx_securityObjectStats {
 528     char type;                  /* An RX_SECTYPE_* value */
 529     char level;
 530     char sparec[10];            /* force correct alignment */
 531     afs_int32 flags;            /* 1=>unalloc, 2=>auth, 4=>expired */
 532     afs_uint32 expires;
 533     afs_uint32 packetsReceived;
 534     afs_uint32 packetsSent;
 535     afs_uint32 bytesReceived;
 536     afs_uint32 bytesSent;
 537     short spares[4];
 538     afs_int32 sparel[8];
 539 };
 540
 541 /* Configuration settings */
 542
 543 /* Enum for storing configuration variables which can be set via the
 544  * SetConfiguration method in the rx_securityClass, below
 545  */
 546
 547 typedef enum {
 548      RXS_CONFIG_FLAGS /* afs_uint32 set of bitwise flags */
 549 } rx_securityConfigVariables;
 550
 551 /* For the RXS_CONFIG_FLAGS, the following bit values are defined */
 552
 553 /* Disable the principal name contains dot check in rxkad */
 554 #define RXS_CONFIG_FLAGS_DISABLE_DOTCHECK       0x01
 555
 556 /* XXXX (rewrite this description) A security class object contains a set of
 557  * procedures and some private data to implement a security model for rx
 558  * connections.  These routines are called by rx as appropriate.  Rx knows
 559  * nothing about the internal details of any particular security model, or
 560  * about security state.  Rx does maintain state per connection on behalf of
 561  * the security class.  Each security class implementation is also expected to
 562  * provide routines to create these objects.  Rx provides a basic routine to
 563  * allocate one of these objects; this routine must be called by the class. */
 564 struct rx_securityClass {
 565     struct rx_securityOps {
 566         int (*op_Close) (struct rx_securityClass * aobj);
 567         int (*op_NewConnection) (struct rx_securityClass * aobj,
 568                                  struct rx_connection * aconn);
 569         int (*op_PreparePacket) (struct rx_securityClass * aobj,
 570                                  struct rx_call * acall,
 571                                  struct rx_packet * apacket);
 572         int (*op_SendPacket) (struct rx_securityClass * aobj,
 573                               struct rx_call * acall,
 574                               struct rx_packet * apacket);
 575         int (*op_CheckAuthentication) (struct rx_securityClass * aobj,
 576                                        struct rx_connection * aconn);
 577         int (*op_CreateChallenge) (struct rx_securityClass * aobj,
 578                                    struct rx_connection * aconn);
 579         int (*op_GetChallenge) (struct rx_securityClass * aobj,
 580                                 struct rx_connection * aconn,
 581                                 struct rx_packet * apacket);
 582         int (*op_GetResponse) (struct rx_securityClass * aobj,
 583                                struct rx_connection * aconn,
 584                                struct rx_packet * apacket);
 585         int (*op_CheckResponse) (struct rx_securityClass * aobj,
 586                                  struct rx_connection * aconn,
 587                                  struct rx_packet * apacket);
 588         int (*op_CheckPacket) (struct rx_securityClass * aobj,
 589                                struct rx_call * acall,
 590                                struct rx_packet * apacket);
 591         int (*op_DestroyConnection) (struct rx_securityClass * aobj,
 592                                      struct rx_connection * aconn);
 593         int (*op_GetStats) (struct rx_securityClass * aobj,
 594                             struct rx_connection * aconn,
 595                             struct rx_securityObjectStats * astats);
 596         int (*op_SetConfiguration) (struct rx_securityClass * aobj,
 597                                     struct rx_connection * aconn,
 598                                     rx_securityConfigVariables atype,
 599                                     void * avalue,
 600                                     void ** acurrentValue);
 601         int (*op_Spare2) (void);
 602         int (*op_Spare3) (void);
 603     } *ops;
 604     void *privateData;
 605     int refCount;
 606 };
 607
 608 #define RXS_OP(obj,op,args) ((obj && (obj->ops->op_ ## op)) ? (*(obj)->ops->op_ ## op)args : 0)
 609
 610 #define RXS_Close(obj) RXS_OP(obj,Close,(obj))
 611 #define RXS_NewConnection(obj,conn) RXS_OP(obj,NewConnection,(obj,conn))
 612 #define RXS_PreparePacket(obj,call,packet) RXS_OP(obj,PreparePacket,(obj,call,packet))
 613 #define RXS_SendPacket(obj,call,packet) RXS_OP(obj,SendPacket,(obj,call,packet))
 614 #define RXS_CheckAuthentication(obj,conn) RXS_OP(obj,CheckAuthentication,(obj,conn))
 615 #define RXS_CreateChallenge(obj,conn) RXS_OP(obj,CreateChallenge,(obj,conn))
 616 #define RXS_GetChallenge(obj,conn,packet) RXS_OP(obj,GetChallenge,(obj,conn,packet))
 617 #define RXS_GetResponse(obj,conn,packet) RXS_OP(obj,GetResponse,(obj,conn,packet))
 618 #define RXS_CheckResponse(obj,conn,packet) RXS_OP(obj,CheckResponse,(obj,conn,packet))
 619 #define RXS_CheckPacket(obj,call,packet) RXS_OP(obj,CheckPacket,(obj,call,packet))
 620 #define RXS_DestroyConnection(obj,conn) RXS_OP(obj,DestroyConnection,(obj,conn))
 621 #define RXS_GetStats(obj,conn,stats) RXS_OP(obj,GetStats,(obj,conn,stats))
 622 #define RXS_SetConfiguration(obj, conn, type, value, currentValue) RXS_OP(obj, SetConfiguration,(obj,conn,type,value,currentValue))
 623
 624
 625
 626 /* Structure for keeping rx statistics.  Note that this structure is returned
 627  * by rxdebug, so, for compatibility reasons, new fields should be appended (or
 628  * spares used), the rxdebug protocol checked, if necessary, and the PrintStats
 629  * code should be updated as well.
 630  *
 631  * Clearly we assume that ntohl will work on these structures so sizeof(int)
 632  * must equal sizeof(afs_int32). */
 633
 634 struct rx_statistics {          /* General rx statistics */
 635     int packetRequests;         /* Number of packet allocation requests */
 636     int receivePktAllocFailures;
 637     int sendPktAllocFailures;
 638     int specialPktAllocFailures;
 639     int socketGreedy;           /* Whether SO_GREEDY succeeded */
 640     int bogusPacketOnRead;      /* Number of inappropriately short packets received */
 641     int bogusHost;              /* Host address from bogus packets */
 642     int noPacketOnRead;         /* Number of read packets attempted when there was actually no packet to read off the wire */
 643     int noPacketBuffersOnRead;  /* Number of dropped data packets due to lack of packet buffers */
 644     int selects;                /* Number of selects waiting for packet or timeout */
 645     int sendSelects;            /* Number of selects forced when sending packet */
 646     int packetsRead[RX_N_PACKET_TYPES]; /* Total number of packets read, per type */
 647     int dataPacketsRead;        /* Number of unique data packets read off the wire */
 648     int ackPacketsRead;         /* Number of ack packets read */
 649     int dupPacketsRead;         /* Number of duplicate data packets read */
 650     int spuriousPacketsRead;    /* Number of inappropriate data packets */
 651     int packetsSent[RX_N_PACKET_TYPES]; /* Number of rxi_Sends: packets sent over the wire, per type */
 652     int ackPacketsSent;         /* Number of acks sent */
 653     int pingPacketsSent;        /* Total number of ping packets sent */
 654     int abortPacketsSent;       /* Total number of aborts */
 655     int busyPacketsSent;        /* Total number of busies sent received */
 656     int dataPacketsSent;        /* Number of unique data packets sent */
 657     int dataPacketsReSent;      /* Number of retransmissions */
 658     int dataPacketsPushed;      /* Number of retransmissions pushed early by a NACK */
 659     int ignoreAckedPacket;      /* Number of packets with acked flag, on rxi_Start */
 660     struct clock totalRtt;      /* Total round trip time measured (use to compute average) */
 661     struct clock minRtt;        /* Minimum round trip time measured */
 662     struct clock maxRtt;        /* Maximum round trip time measured */
 663     int nRttSamples;            /* Total number of round trip samples */
 664     int nServerConns;           /* Total number of server connections */
 665     int nClientConns;           /* Total number of client connections */
 666     int nPeerStructs;           /* Total number of peer structures */
 667     int nCallStructs;           /* Total number of call structures allocated */
 668     int nFreeCallStructs;       /* Total number of previously allocated free call structures */
 669     int netSendFailures;
 670     afs_int32 fatalErrors;
 671     int ignorePacketDally;      /* packets dropped because call is in dally state */
 672     int receiveCbufPktAllocFailures;
 673     int sendCbufPktAllocFailures;
 674     int nBusies;
 675     int spares[4];
 676 };
 677
 678 /* structures for debug input and output packets */
 679
 680 /* debug input types */
 681 struct rx_debugIn {
 682     afs_int32 type;
 683     afs_int32 index;
 684 };
 685
 686 /* Invalid rx debug package type */
 687 #define RX_DEBUGI_BADTYPE     (-8)
 688
 689 #define RX_DEBUGI_VERSION_MINIMUM ('L') /* earliest real version */
 690 #define RX_DEBUGI_VERSION     ('S')    /* Latest version */
 691     /* first version w/ secStats */
 692 #define RX_DEBUGI_VERSION_W_SECSTATS ('L')
 693     /* version M is first supporting GETALLCONN and RXSTATS type */
 694 #define RX_DEBUGI_VERSION_W_GETALLCONN ('M')
 695 #define RX_DEBUGI_VERSION_W_RXSTATS ('M')
 696     /* last version with unaligned debugConn */
 697 #define RX_DEBUGI_VERSION_W_UNALIGNED_CONN ('L')
 698 #define RX_DEBUGI_VERSION_W_WAITERS ('N')
 699 #define RX_DEBUGI_VERSION_W_IDLETHREADS ('O')
 700 #define RX_DEBUGI_VERSION_W_NEWPACKETTYPES ('P')
 701 #define RX_DEBUGI_VERSION_W_GETPEER ('Q')
 702 #define RX_DEBUGI_VERSION_W_WAITED ('R')
 703 #define RX_DEBUGI_VERSION_W_PACKETS ('S')
 704
 705 #define RX_DEBUGI_GETSTATS      1       /* get basic rx stats */
 706 #define RX_DEBUGI_GETCONN       2       /* get connection info */
 707 #define RX_DEBUGI_GETALLCONN    3       /* get even uninteresting conns */
 708 #define RX_DEBUGI_RXSTATS       4       /* get all rx stats */
 709 #define RX_DEBUGI_GETPEER       5       /* get all peer structs */
 710
 711 struct rx_debugStats {
 712     afs_int32 nFreePackets;
 713     afs_int32 packetReclaims;
 714     afs_int32 callsExecuted;
 715     char waitingForPackets;
 716     char usedFDs;
 717     char version;
 718     char spare1;
 719     afs_int32 nWaiting;
 720     afs_int32 idleThreads;      /* Number of server threads that are idle */
 721     afs_int32 nWaited;
 722     afs_int32 nPackets;
 723     afs_int32 spare2[6];
 724 };
 725
 726 struct rx_debugConn_vL {
 727     afs_uint32 host;
 728     afs_int32 cid;
 729     afs_int32 serial;
 730     afs_int32 callNumber[RX_MAXCALLS];
 731     afs_int32 error;
 732     short port;
 733     char flags;
 734     char type;
 735     char securityIndex;
 736     char callState[RX_MAXCALLS];
 737     char callMode[RX_MAXCALLS];
 738     char callFlags[RX_MAXCALLS];
 739     char callOther[RX_MAXCALLS];
 740     /* old style getconn stops here */
 741     struct rx_securityObjectStats secStats;
 742     afs_int32 sparel[10];
 743 };
 744
 745 struct rx_debugConn {
 746     afs_uint32 host;
 747     afs_int32 cid;
 748     afs_int32 serial;
 749     afs_int32 callNumber[RX_MAXCALLS];
 750     afs_int32 error;
 751     short port;
 752     char flags;
 753     char type;
 754     char securityIndex;
 755     char sparec[3];             /* force correct alignment */
 756     char callState[RX_MAXCALLS];
 757     char callMode[RX_MAXCALLS];
 758     char callFlags[RX_MAXCALLS];
 759     char callOther[RX_MAXCALLS];
 760     /* old style getconn stops here */
 761     struct rx_securityObjectStats secStats;
 762     afs_int32 epoch;
 763     afs_int32 natMTU;
 764     afs_int32 sparel[9];
 765 };
 766
 767 struct rx_debugPeer {
 768     afs_uint32 host;
 769     u_short port;
 770     u_short ifMTU;
 771     afs_uint32 idleWhen;
 772     short refCount;
 773     u_char burstSize;
 774     u_char burst;
 775     struct clock burstWait;
 776     afs_int32 rtt;
 777     afs_int32 rtt_dev;
 778     struct clock timeout;
 779     afs_int32 nSent;
 780     afs_int32 reSends;
 781     afs_int32 inPacketSkew;
 782     afs_int32 outPacketSkew;
 783     afs_int32 rateFlag;
 784     u_short natMTU;
 785     u_short maxMTU;
 786     u_short maxDgramPackets;
 787     u_short ifDgramPackets;
 788     u_short MTU;
 789     u_short cwind;
 790     u_short nDgramPackets;
 791     u_short congestSeq;
 792     afs_hyper_t bytesSent;
 793     afs_hyper_t bytesReceived;
 794     afs_int32 sparel[10];
 795 };
 796
 797 #define RX_OTHER_IN     1       /* packets avail in in queue */
 798 #define RX_OTHER_OUT    2       /* packets avail in out queue */
 799
 800 #define RX_SERVER_DEBUG_SEC_STATS               0x1
 801 #define RX_SERVER_DEBUG_ALL_CONN                0x2
 802 #define RX_SERVER_DEBUG_RX_STATS                0x4
 803 #define RX_SERVER_DEBUG_WAITER_CNT              0x8
 804 #define RX_SERVER_DEBUG_IDLE_THREADS            0x10
 805 #define RX_SERVER_DEBUG_OLD_CONN                0x20
 806 #define RX_SERVER_DEBUG_NEW_PACKETS             0x40
 807 #define RX_SERVER_DEBUG_ALL_PEER                0x80
 808 #define RX_SERVER_DEBUG_WAITED_CNT              0x100
 809 #define RX_SERVER_DEBUG_PACKETS_CNT              0x200
 810
 811 #define AFS_RX_STATS_CLEAR_ALL                  0xffffffff
 812 #define AFS_RX_STATS_CLEAR_INVOCATIONS          0x1
 813 #define AFS_RX_STATS_CLEAR_BYTES_SENT           0x2
 814 #define AFS_RX_STATS_CLEAR_BYTES_RCVD           0x4
 815 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SUM       0x8
 816 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_SQUARE    0x10
 817 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MIN       0x20
 818 #define AFS_RX_STATS_CLEAR_QUEUE_TIME_MAX       0x40
 819 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SUM        0x80
 820 #define AFS_RX_STATS_CLEAR_EXEC_TIME_SQUARE     0x100
 821 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MIN        0x200
 822 #define AFS_RX_STATS_CLEAR_EXEC_TIME_MAX        0x400
 823
 824 typedef struct rx_function_entry_v1 {
 825     afs_uint32 remote_peer;
 826     afs_uint32 remote_port;
 827     afs_uint32 remote_is_server;
 828     afs_uint32 interfaceId;
 829     afs_uint32 func_total;
 830     afs_uint32 func_index;
 831     afs_uint64 invocations;
 832     afs_uint64 bytes_sent;
 833     afs_uint64 bytes_rcvd;
 834     struct clock queue_time_sum;
 835     struct clock queue_time_sum_sqr;
 836     struct clock queue_time_min;
 837     struct clock queue_time_max;
 838     struct clock execution_time_sum;
 839     struct clock execution_time_sum_sqr;
 840     struct clock execution_time_min;
 841     struct clock execution_time_max;
 842 } rx_function_entry_v1_t, *rx_function_entry_v1_p;
 843
 844 /*
 845  * If you need to change rx_function_entry, you should probably create a brand
 846  * new structure.  Keeping the old structure will allow backwards compatibility
 847  * with old clients (even if it is only used to calculate allocation size).
 848  * If you do change the size or the format, you'll need to bump
 849  * RX_STATS_RETRIEVAL_VERSION.  This allows some primitive form
 850  * of versioning a la rxdebug.
 851  */
 852
 853 #define RX_STATS_RETRIEVAL_VERSION 1    /* latest version */
 854 #define RX_STATS_RETRIEVAL_FIRST_EDITION 1      /* first implementation */
 855
 856 typedef struct rx_interface_stat {
 857     struct opr_queue entry;
 858     struct opr_queue entryPeers;
 859     rx_function_entry_v1_t stats[1];    /* make sure this is aligned correctly */
 860 } rx_interface_stat_t, *rx_interface_stat_p;
 861
 862 #define RX_STATS_SERVICE_ID 409
 863
 864 #ifdef AFS_NT40_ENV
 865 extern int rx_DumpCalls(FILE *outputFile, char *cookie);
 866 #endif
 867
 868 #endif /* _RX_   End of rx.h */
 869
 870 #ifdef  KERNEL
 871 #include "rx/rx_prototypes.h"
 872 #else
 873 #include "rx_prototypes.h"
 874 #endif
 875
 876 static_inline afs_uint32
 877 RPCOpStat_Peer(void *blob) {
 878     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 879     return rpcop_stat->remote_peer;
 880 }
 881
 882 static_inline afs_uint32
 883 RPCOpStat_Port(void *blob) {
 884     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 885     return rpcop_stat->remote_port;
 886 }
 887
 888 static_inline afs_uint32
 889 RPCOpStat_IsServer(void *blob) {
 890     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 891     return rpcop_stat->remote_is_server;
 892 }
 893
 894 static_inline afs_uint32
 895 RPCOpStat_InterfaceId(void *blob) {
 896     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 897     return rpcop_stat->interfaceId;
 898 }
 899
 900 static_inline afs_uint32
 901 RPCOpStat_NumFuncs(void *blob) {
 902     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 903     return rpcop_stat->func_total;
 904 }
 905
 906 static_inline afs_uint32
 907 RPCOpStat_CurFunc(void *blob) {
 908     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 909     return rpcop_stat->func_index;
 910 }
 911
 912 static_inline struct clock *
 913 RPCOpStat_QTimeSum(void *blob) {
 914     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 915     return &(rpcop_stat->queue_time_sum);
 916 }
 917
 918 static_inline struct clock *
 919 RPCOpStat_QTimeSumSqr(void *blob) {
 920     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 921     return &(rpcop_stat->queue_time_sum_sqr);
 922 }
 923
 924 static_inline struct clock *
 925 RPCOpStat_QTimeSumMin(void *blob) {
 926     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 927     return &(rpcop_stat->queue_time_min);
 928 }
 929
 930 static_inline struct clock *
 931 RPCOpStat_QTimeSumMax(void *blob) {
 932     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 933     return &(rpcop_stat->queue_time_max);
 934 }
 935
 936 static_inline struct clock *
 937 RPCOpStat_ExecTimeSum(void *blob) {
 938     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 939     return &(rpcop_stat->execution_time_sum);
 940 }
 941
 942 static_inline struct clock *
 943 RPCOpStat_ExecTimeSumSqr(void *blob) {
 944     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 945     return &(rpcop_stat->execution_time_sum_sqr);
 946 }
 947
 948 static_inline struct clock *
 949 RPCOpStat_ExecTimeSumMin(void *blob) {
 950     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 951     return &(rpcop_stat->execution_time_min);
 952 }
 953
 954 static_inline struct clock *
 955 RPCOpStat_ExecTimeSumMax(void *blob) {
 956     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 957     return &(rpcop_stat->execution_time_max);
 958 }
 959
 960 static_inline afs_uint64
 961 RPCOpStat_NumCalls(void *blob) {
 962     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 963     return rpcop_stat->invocations;
 964 }
 965
 966 static_inline afs_uint64
 967 RPCOpStat_BytesSent(void *blob) {
 968     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 969     return rpcop_stat->bytes_sent;
 970 }
 971
 972 static_inline afs_uint64
 973 RPCOpStat_BytesRcvd(void *blob) {
 974     rx_function_entry_v1_p rpcop_stat = (rx_function_entry_v1_p)blob;
 975     return rpcop_stat->bytes_rcvd;
 976 }
 977 #endif /* !KDUMP_RX_LOCK */