getpdu.c

wm PNE 3.3 source code, running at more than vxworks6.x version.

/*
 *  Copyright 2000-2005 Wind River Systems, Inc.
 *  All rights reserved.  Provided under license only.
 *  Distribution or other use of this software is only
 *  permitted pursuant to the terms of a license agreement
 *  from Wind River Systems (and is otherwise prohibited).
 *  Refer to that license agreement for terms of use.
 */

/*
 *  Copyright 1988-1997 Epilogue Technology Corporation.
 *  Copyright 1998 Integrated Systems, Inc.
 *  All rights reserved.
 */

/*
 * $Log: getpdu.c,v $
 * Revision 1.4  2003/01/15 14:05:04  josh
 * directory structure shifting
 *
 * Revision 1.3  2001/11/06 21:50:47  josh
 * second (and hopefully final) pass of new path hacking
 *
 * Revision 1.2  2001/11/06 21:20:13  josh
 * revised new path hacking
 *
 * Revision 1.1.1.1  2001/11/05 17:47:42  tneale
 * Tornado shuffle
 *
 * Revision 9.2.4.1  2001/08/07 21:53:31  meister
 * reworked to use dynamic component configuration macros, to allow
 * separate vxworks agentx components
 *
 * Revision 9.2  2001/01/19 22:22:21  paul
 * Update copyright.
 *
 * Revision 9.1  2000/03/17 00:19:06  meister
 * Update copyright message
 *
 * Revision 9.0  1998/10/16 22:11:30  sar
 * Update version stamp to match release
 *
 * Revision 8.7  1998/06/16 05:25:00  sar
 * clean up some type stuff, some calls to send error
 *
 * Revision 8.6  1998/06/08 22:05:25  sar
 * Tidied up some v3 error returns, notably authorization error
 *
 * Revision 8.5  1998/06/05 18:53:13  sra
 * "#include <foo.h>" => "#include <envoy/h/foo.h>".
 *
 * Revision 8.4  1998/05/29 04:31:14  sar
 * Add and use defines for v2 types and v2 protocol pieces.  This allows
 * us to include the types and pieces for other versions, such as v3,
 * without having to touch all of the seperate files that use the
 * types or pieces.
 *
 * Revision 8.3  1998/05/24 04:44:05  sar
 * Added a call to find the view family, in nextpdu also modified the view_check
 * call to be view_family_check
 *
 * Revision 8.2  1998/02/25 15:21:30  sra
 * Finish moving types.h, bug.h, and bugdef.h to common/h/.
 *
 * Revision 8.1  1998/02/25 04:51:50  sra
 * Update copyrights.
 *
 * Revision 8.0  1997/11/18 00:56:49  sar
 * Updated revision to 8.0
 *
 * Revision 7.4  1997/10/22 03:10:21  sar
 * Modified the installation options for agentx and the older sub agent scheme
 *
 * Also moved the allocation of the locks into envoy_init (env_init.c),
 * so they can be initialized if necessary.
 *
 * Revision 7.3  1997/10/16 00:45:53  sar
 * Updated for agentx support, with most of the work in mibutils.c to deal
 * with interior leaves and the pdu processors to deal with agentx leaves,
 * especially their reference counts.
 *
 * Add a bug macro into the get_{read write}_lock calls to give the user
 * a chance if things start going wrong.
 *
 * Fixed a potential problem int the proxy code where we were trying to
 * stuff a 32 bit quantity into a pointer which may or may not work depending
 * on the platform.
 *
 * Revision 7.2  1997/03/20 06:48:56  sra
 * DFARS-safe copyright text.  Zap!
 *
 * Revision 7.1  1997/02/25 10:49:26  sra
 * Update copyright notice, dust under the bed.
 *
 * Revision 7.0  1996/03/18 20:01:11  sar
 * Updated revision to 7.0 and copyright to 96
 *
 * Revision 6.1  1995/11/01  00:46:48  sar
 * Added a default option in the version case statement to allow
 * new versions such as usec to be added without touching getpdu
 *
 * Revision 6.0  1995/05/31  21:47:24  sra
 * Release 6.0.
 *
 * Revision 5.3  1995/03/21  00:25:01  sar
 * Basically rewritten to use the new async apis.
 *
 * Revision 5.2  1994/09/29  18:37:21  sar
 * If we aren't using the v2 types remove the code to handle them mostly
 * this means ifdef the code.  In mibutils.c and snmp_d.c we need to
 * examine the version of the packet in some cases to reject v2 types for
 * a v1 packet when both v1 and v2 are installed.
 *
 * Revision 5.1  1994/06/17  21:00:45  sar
 * After we are done with the incoming error-status and error_index
 * set them to 0 so we can use it for error replies from gets.
 *
 * Revision 5.0  1994/05/16  15:42:42  sar
 * Updated revision to 5.0 and copyright to include 1994
 *
 * Revision 4.6  1994/05/12  17:16:29  sar
 * in call_the_get_routine, for get routines that return pointers check
 * to see if the pointer is 0 in which case we zero the object value.
 *
 * Revision 4.5  1994/05/04  22:45:43  sar
 * Added code to allow a failure during the getproc.  This shouldn't be
 * used in general.
 *
 * Revision 4.4  1994/04/29  21:19:45  sar
 * Added some ifdefs for the sub agent scheme which required moving some
 * code around, modified the call to find_object_node and get_ui64.
 *
 * Revision 4.3  1994/01/25  20:46:16  sar
 * SNMPv2 requires a too big error return to have the var binds removed
 * we were not doing this.
 *
 * Revision 4.2  1993/11/11  22:00:51  sar
 * Increment the no such name counter when generating a no such error
 * the testproc failed.
 *
 * Revision 4.1  1993/09/30  20:28:23  sar
 * Added some size testing at the start of the routine to catch packets taht
 * will be too large for get bulk and silent drop them, also modified get
 * bulk to return no var bind packets if size so dictates.  Modified the
 * code to decide the non repeaters and max reps in the face of different
 * word sizes and such.
 *
 * Revision 4.0  1993/06/24  15:45:46  sar
 * Updated revision to 4.0 and copyright to 93
 *
 * Revision 3.18  1993/06/17  23:33:44  sar
 * removed the ENVOY_ from the UI64 routines.
 *
 * Revision 3.17  1993/06/07  18:26:04  sar
 * Modified call to get a 64 bit unsigned int.
 *
 * Revision 3.16  1993/06/02  23:09:24  dab
 * Changed #ifdef's to #if's for things from install.h
 *
 * Revision 3.15  1993/05/24  20:38:20  sar
 * Moved the use of vblp to be inside the ifdef v2 areas so we won't
 * get any compiler warnings about not using it.
 *
 * Revision 3.14  1993/05/19  20:25:22  sar
 * Tidied up types to make compilers happy (mostly int to ALENGTH_T).
 *
 * Revision 3.13  1993/05/14  19:02:36  sar
 * Mad maxreps and reps int_32_T and nonreps a size_t to avoid compileer
 * warnings.
 *
 * Revision 3.12  1993/05/03  17:16:12  sar
 * Added routines for local time, removed {party context} oids from packet
 * structure, added asn1len to {party context} structures and
 * SNMP_{Party Context}_Name where needed to lookup the name for a given
 * {Party Context}.
 *
 * Revision 3.11  1993/04/28  22:02:29  sar
 * moved the def of UINT_64_T and added some new types to the routines.
 *
 * Revision 3.10  1993/04/23  23:31:53  sar
 * In getbulk processing added check to see if all of the varbinds are at end of
 * mib.
 *
 * Revision 3.9  1993/04/22  20:06:36  sar
 * Much updating of macros and install options, mostly we now use
 * ISNTALL_ENVOY_SNMP_VERSION_1 or _2, VERSION_RFCXXXX is now SNMP_VERSION_2
 * and other similiar items.
 *
 * Revision 3.8  1993/04/20  19:54:59  sar
 * Added code to handle adding new auth and priv routines, and cleaned up
 * the party set code and a padding argument in the priv structure.
 *
 * Revision 3.7  1993/04/19  18:28:34  sar
 * cleanup, mostly some correcting some non-ansi misspellings and adding
 * static defs.
 *
 * Revision 3.6  1993/03/24  01:01:40  sar
 * added a check on the non repeaters to make sure that we don't go off the
 * end of the vb list if non repeaters > count of var binds.
 *
 * Revision 3.5  1993/03/05  03:58:02  dab
 * fixed up types
 *
 * Revision 3.4  1993/03/01  20:52:16  sar
 * moved some definitions to allow clean version 1 compiles.
 *
 * Revision 3.3  1993/03/01  17:13:33  dab
 * Changed varialbe named index so it doesn't shadow index() routine
 * that some systems have.
 *
 * Revision 3.2  1993/02/24  01:02:41  sar
 * Changed many call to use OIDC_T/lenght pairs instead of OBJ_ID_T as now
 * we don't need to specifically allocate the OBJ_ID_T.
 * Removed the name objid from the PARTYLEAF_T as the name may be determined from
 * the tree itself.  For efficiency purposes put the dest/src party names into
 * the pkt so we don't have to look them up frequently.
 *
 * Revision 3.1  1993/02/17  21:02:56  sar
 * Update stat keeping for v1 and v2 (or both or neither).
 * Added build_error_packet which create an error packet and does some
 * v2 size checking.
 * Updated Process_SNMP_GetClass_Pdu to handle the getbulk case.
 * (The other cases are treated as special cases of the getbulk case.)
 * Added VT_UINTEGER32 value case to the get area.
 *
 * Revision 3.0  92/04/03  19:52:37  dab
 * Release 3.0
 * 
 * Revision 2.108  92/02/24  11:11:51  dab
 * Don't do an extra copy on dynamic returns from get_oid.
 * 
 * Revision 2.107  92/02/24  10:57:37  dab
 * In call_the_get_function, added the dynamic argument to get_oid and
 * the addr argument to get_ip_address.
 * 
 * Revision 2.106  92/01/30  14:02:43  dab
 * Fixed up calls to getprocs so they had the proper procedure prototypes
 * including parameters for those compilers that care.
 * 
 * Revision 2.105  91/10/30  20:41:59  dab
 * Directly include asn1conf.h, snmpdefs.h, and snmpstat.h (if needed).
 * 
 * Revision 2.104  91/09/20  11:17:09  dab