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fcc82f451d
compile with Sun C, as "interface.h" isn't being included before the structures are being declared. Furthermore, in the files that Sun C *can* compile, it doesn't cause Sun C to generate code that's safe with unaligned accesses, as "__attribute__" is defined as a do-nothing macro with compilers that don't support it. Therefore, we get rid of that tag on the structures to which it was added, and instead use "EXTRACT_16BIT()" and "EXTRACT_32BIT()" to fetch 16-bit and 32-bit big-endian quantities from packets. We also fix some other references to multi-byte quantities to get rid of code that tries to do unaligned loads on platforms that don't support them. We also throw in a hack that makes those macros use "__attribute__((packed))" on structures containing only one 16-bit or 32-bit integer to get the compiler to generate unaligned-safe code rather than doing it by hand. (GCC on SPARC produces the same code that doing it by hand does; I don't know if GCC on any other big-endian strict-alignment processor generates better code for that case. On little-endian processors, as "ntohs()" and "ntohl()" might be functions, that might actually produce worse code.) Fix some places to use "%u" rather than "%d" to print unsigned quantities.
114 lines
3.5 KiB
C
114 lines
3.5 KiB
C
/*
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* Copyright: (c) 2000 United States Government as represented by the
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* Secretary of the Navy. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. The names of the authors may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/*
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* Rx protocol format
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*
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* $Id: rx.h,v 1.8 2002-12-11 07:14:11 guy Exp $
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*/
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#define FS_RX_PORT 7000
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#define CB_RX_PORT 7001
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#define PROT_RX_PORT 7002
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#define VLDB_RX_PORT 7003
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#define KAUTH_RX_PORT 7004
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#define VOL_RX_PORT 7005
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#define ERROR_RX_PORT 7006 /* Doesn't seem to be used */
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#define BOS_RX_PORT 7007
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#ifndef AFSNAMEMAX
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#define AFSNAMEMAX 256
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#endif
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#ifndef AFSOPAQUEMAX
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#define AFSOPAQUEMAX 1024
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#endif
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#define PRNAMEMAX 64
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#define VLNAMEMAX 65
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#define KANAMEMAX 64
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#define BOSNAMEMAX 256
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#define PRSFS_READ 1 /* Read files */
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#define PRSFS_WRITE 2 /* Write files */
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#define PRSFS_INSERT 4 /* Insert files into a directory */
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#define PRSFS_LOOKUP 8 /* Lookup files into a directory */
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#define PRSFS_DELETE 16 /* Delete files */
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#define PRSFS_LOCK 32 /* Lock files */
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#define PRSFS_ADMINISTER 64 /* Change ACL's */
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struct rx_header {
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u_int32_t epoch;
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u_int32_t cid;
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u_int32_t callNumber;
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u_int32_t seq;
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u_int32_t serial;
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u_int8_t type;
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#define RX_PACKET_TYPE_DATA 1
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#define RX_PACKET_TYPE_ACK 2
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#define RX_PACKET_TYPE_BUSY 3
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#define RX_PACKET_TYPE_ABORT 4
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#define RX_PACKET_TYPE_ACKALL 5
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#define RX_PACKET_TYPE_CHALLENGE 6
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#define RX_PACKET_TYPE_RESPONSE 7
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#define RX_PACKET_TYPE_DEBUG 8
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#define RX_PACKET_TYPE_PARAMS 9
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#define RX_PACKET_TYPE_VERSION 13
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u_int8_t flags;
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#define RX_CLIENT_INITIATED 1
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#define RX_REQUEST_ACK 2
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#define RX_LAST_PACKET 4
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#define RX_MORE_PACKETS 8
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#define RX_FREE_PACKET 16
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#define RX_SLOW_START_OK 32
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#define RX_JUMBO_PACKET 32
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u_int8_t userStatus;
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u_int8_t securityIndex;
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u_int16_t spare; /* How clever: even though the AFS */
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u_int16_t serviceId; /* header files indicate that the */
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}; /* serviceId is first, it's really */
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/* encoded _after_ the spare field */
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/* I wasted a day figuring that out! */
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#define NUM_RX_FLAGS 7
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#define RX_MAXACKS 255
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struct rx_ackPacket {
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u_int16_t bufferSpace; /* Number of packet buffers available */
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u_int16_t maxSkew; /* Max diff between ack'd packet and */
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/* highest packet received */
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u_int32_t firstPacket; /* The first packet in ack list */
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u_int32_t previousPacket; /* Previous packet recv'd (obsolete) */
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u_int32_t serial; /* # of packet that prompted the ack */
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u_int8_t reason; /* Reason for acknowledgement */
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u_int8_t nAcks; /* Number of acknowledgements */
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u_int8_t acks[RX_MAXACKS]; /* Up to RX_MAXACKS acknowledgements */
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};
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/*
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* Values for the acks array
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*/
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#define RX_ACK_TYPE_NACK 0 /* Don't have this packet */
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#define RX_ACK_TYPE_ACK 1 /* I have this packet */
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