206 lines
7.4 KiB
C
206 lines
7.4 KiB
C
/************************************************************************/
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/* SISCO SOFTWARE MODULE HEADER *****************************************/
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/************************************************************************/
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/* (c) Copyright Systems Integration Specialists Company, Inc., */
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/* 1986 - 2001, All Rights Reserved. */
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/* */
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/* PROPRIETARY AND CONFIDENTIAL */
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/* */
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/* MODULE NAME : mmsstat.c */
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/* PRODUCT(S) : MMSEASE, MMSEASE-LITE */
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/* */
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/* MODULE DESCRIPTION : */
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/* This module contains the common functions to perform the decode */
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/* of a status response or an unsolicited status request, which */
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/* have identical syntax. */
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/* */
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/* GLOBAL FUNCTIONS DEFINED IN THIS MODULE : */
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/* */
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/* MODIFICATION LOG : */
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/* Date Who Rev Comments */
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/* -------- --- ------ ------------------------------------------- */
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/* 03/11/04 GLB 06 Remove "thisFileName" */
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/* 03/31/03 JRB 05 asn1r_get_bitstr: add max_bits arg. */
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/* 12/20/01 JRB 04 Converted to use ASN1R (re-entrant ASN1) */
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/* 09/13/99 MDE 03 Added SD_CONST modifiers */
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/* 03/23/99 MDE 02 Changes to decode buffer allocation scheme */
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/* 07/03/97 MDE 01 Op-specific info buffer handling changes */
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/* 04/02/97 DTL 7.00 MMSEASE 7.0 release. See MODL70.DOC for */
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/* history. */
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/************************************************************************/
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#include "glbtypes.h"
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#include "sysincs.h"
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#include "mmsdefs.h"
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#include "mms_pvmd.h"
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#include "asn1defs.h"
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/************************************************************************/
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static STATUS_RESP_INFO *info;
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static ST_VOID local_detail_done (ASN1_DEC_CTXT *aCtx);
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static ST_VOID get_local_detail_prim (ASN1_DEC_CTXT *aCtx);
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static ST_VOID get_local_detail_cstr (ASN1_DEC_CTXT *aCtx);
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static ST_VOID get_physical_stat (ASN1_DEC_CTXT *aCtx);
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static ST_VOID get_logical_stat (ASN1_DEC_CTXT *aCtx);
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/************************************************************************/
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/************************************************************************/
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/* mms_status */
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/* This function is called from mms_status_rsp (in rq_stat.c) or from */
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/* mms_ustatus_req (in rs_ustat.c) to decode either a Status response */
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/* PDU or an UnsolicitedStatus request PDU after the PDU type has been */
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/* determined. It sets up the parse of the next data element and */
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/* returns, letting the ASN.1 tools take over. */
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/************************************************************************/
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ST_VOID mms_status (ASN1_DEC_CTXT *aCtx)
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{
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/* Create status_resp_info structure data area to put decoded info into.*/
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info = (STATUS_RESP_INFO *) _m_get_dec_buf (aCtx, sizeof (STATUS_RESP_INFO));
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/* (NOTE: A structure of typp_info is excactly the same as */
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/* a structure of type ustat so this logic works with both */
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ASN1R_TAG_ADD (aCtx, CTX,0,get_logical_stat);/* Set up to parse 1st param.*/
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}
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/************************************************************************/
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/* get_logical_stat */
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/* The logical status parameter has been encountered. Read its value. */
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/************************************************************************/
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static ST_VOID get_logical_stat (ASN1_DEC_CTXT *aCtx)
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{
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ST_INT high_lim;
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MLOG_CDEC0 ("get_logical_stat");
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if (asn1r_get_i16 (aCtx, &info->logical_stat)) /* Read logical status. */
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{ /* If error reading integer, */
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asn1r_set_dec_err (aCtx, RESP_BAD_VALUE); /* stop parse, report error */
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return; /* and return. */
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}
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#ifndef MMS_LITE
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if (mms_chan_info[_mmsdechan].version) /* IS */
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#else
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if (mmsl_version) /* IS */
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#endif
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high_lim = 3;
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else /* DIS */
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high_lim = 2;
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if ((info->logical_stat < 0) || (info->logical_stat > high_lim))
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{ /* validate range of values */
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asn1r_set_dec_err (aCtx, RESP_BAD_VALUE);
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return;
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}
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/* The next data element expected is the physical status. */
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ASN1R_TAG_ADD (aCtx, CTX,1,get_physical_stat);
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}
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/************************************************************************/
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/* get_physical_stat */
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/* The physical status parameter has been encountered. Read its value. */
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/************************************************************************/
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static ST_VOID get_physical_stat (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("get_physical_stat");
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/* Get the value of the physical status parameter. */
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if (asn1r_get_i16 (aCtx, &info->physical_stat)) /* Read physical status. */
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{ /* If error reading integer, */
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asn1r_set_dec_err (aCtx, RESP_BAD_VALUE); /* stop parse, report error */
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return; /* and return. */
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}
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if ((info->physical_stat < 0) || (info->physical_stat > 3))
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{ /* validate range [0..3] */
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asn1r_set_dec_err (aCtx, RESP_BAD_VALUE);
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return;
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}
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/* The next data element is either the local detail parameter or the */
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/* additional detail parameter, or there may be no other data elements. */
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ASN1R_TAG_ADD (aCtx, CTX,2,get_local_detail_prim);
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ASN1R_TAG_ADD (aCtx, CTX|CONSTR,2,get_local_detail_cstr);
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_ms_set_cs_check (aCtx); /* check for Companion Standard info */
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}
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/************************************************************************/
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/* get_local_detail_prim */
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/* The local detail parameter has been encountered as a primitive data */
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/* element. Read its value. */
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/************************************************************************/
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static ST_VOID get_local_detail_prim (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("get_local_detail_prim");
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/* Get the value of the local detail parameter. */
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if (aCtx->asn1r_elmnt_len <= MAX_IDENT_LEN)/* check length before moving data */
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{
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if (!asn1r_get_bitstr (aCtx, info->local_detail, sizeof(info->local_detail)*8))
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{ /* If everything is kosher, */
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local_detail_done (aCtx); /* set up for the next data element. */
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return; /* Return success and continue parse. */
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}
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}
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/* Problem getting value - stop parse and report error. */
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asn1r_set_dec_err (aCtx, RESP_BAD_VALUE);
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return;
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}
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/************************************************************************/
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/* get_local_detail_cstr */
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/* The local detail parameter has been encountered as a constructor */
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/* data element. Read its value. */
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/************************************************************************/
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static ST_VOID get_local_detail_cstr (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("get_local_detail_cstr");
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/* Set up to call this function when done with constructor bitstring. */
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aCtx->asn1r_c_done_fun[aCtx->asn1r_msg_level] = local_detail_done;
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/* Get the value of the local detail parameter. For constructor */
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/* bitstrings, this requires returning and letting the ASN.1 tools */
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/* parse it to any nesting level. */
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asn1r_get_bitstr_cstr (aCtx, 16,info->local_detail);
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}
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/************************************************************************/
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/* local_detail_done */
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/* Function called after the local_detail parameter has been parsed. */
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/************************************************************************/
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static ST_VOID local_detail_done (ASN1_DEC_CTXT *aCtx)
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{
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info -> local_detail_pres = SD_TRUE;
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info -> local_detail_len = aCtx->asn1r_bitcount;
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/* The next data element, if there is one, is the additional detail */
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/* parameter. */
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_ms_set_cs_check (aCtx); /* check for Companion Standard info */
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}
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