352 lines
13 KiB
C
352 lines
13 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 : rq_fdir.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 requester portion of file directory. */
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/* It decodes the file directory response (confirm) & encodes the */
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/* file directory request. */
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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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/* 12/20/01 JRB 05 Converted to use ASN1R (re-entrant ASN1) */
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/* 09/13/99 MDE 04 Added SD_CONST modifiers */
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/* 03/23/99 MDE 03 Changes to decode buffer allocation scheme */
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/* 06/15/98 MDE 02 Changes to allow compile under C++ */
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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_pfil.h"
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#include "asn1defs.h"
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/************************************************************************/
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/* variables global to the DECODE portion : */
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static FDIR_RESP_INFO *fop_info;
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static FDIR_DIR_ENT *ent_ptr;
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static FDIR_DIR_ENT *dir_ptr;
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static ST_INT max_dir_ents;
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/************************************************************************/
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/* variables global to the ENCODE portion : NONE */
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static ST_VOID fdir_dir_entry (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fdir_more_follows (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fdir_get_fil_mtim (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fdir_dir_ent_done (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fdir_get_fil_siz (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fdir_get_fil_attr (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fdir_fname_cstr_done (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fdir_fname_cstr (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fdir_dir_list_done (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fdir_dir_seq (ASN1_DEC_CTXT *aCtx);
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static ST_VOID fdir_dir_list (ASN1_DEC_CTXT *aCtx);
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/************************************************************************/
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/************************************************************************/
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/* mms_file_dir_rsp */
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/* This function is called from mmsdec when the opcode for this */
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/* operation is decoded. Setup state machine function pointers, etc. */
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/************************************************************************/
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ST_VOID mms_file_dir_rsp (ASN1_DEC_CTXT *aCtx)
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{
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ST_INT rsp_size;
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MLOG_CDEC0 ("File Directory Response");
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#if defined(FIXED_DECBUF)
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max_dir_ents = m_cl_max_file_directory;
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rsp_size = mmsl_dec_info_size;
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#else
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max_dir_ents = _mmsdec_msglen/8; /* determine maximum size */
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if (m_cl_max_file_directory && (max_dir_ents > m_cl_max_file_directory))
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max_dir_ents = m_cl_max_file_directory;
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/* get storage for resp info */
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rsp_size = sizeof (FDIR_RESP_INFO)
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+ (max_dir_ents * (sizeof (FDIR_DIR_ENT)))
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+ (max_dir_ents * (sizeof (FILE_NAME)));
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#endif
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/* get storage for request information */
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fop_info = (FDIR_RESP_INFO *) _m_get_dec_buf (aCtx, rsp_size);
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fop_info->num_dir_ent = 0; /* set default values */
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fop_info->more_follows = SD_FALSE;
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ent_ptr = (FDIR_DIR_ENT *) (fop_info + 1);
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ASN1R_TAG_ADD (aCtx, CTX | CONSTR, 0, fdir_dir_list);
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}
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/************************************************************************/
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/* fdir_dir_list */
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/* file directory response is being decoded: directory list constructor */
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/* was encountered. */
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/************************************************************************/
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static ST_VOID fdir_dir_list (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("fdir_dir_list");
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ASN1R_TAG_ADD (aCtx, UNI | CONSTR, SEQ_CODE, fdir_dir_seq);
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}
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/************************************************************************/
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/* fdir_dir_seq */
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/* file directory response is being decoded: directory entry constr */
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/* was encountered. */
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/************************************************************************/
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static ST_VOID fdir_dir_seq (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("fdir_dir_seq");
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ASN1R_TAG_ADD (aCtx, UNI | CONSTR, SEQ_CODE, fdir_dir_entry);
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aCtx->asn1r_c_done_fun [aCtx->asn1r_msg_level] = NULL;
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aCtx->asn1r_c_done_fun [aCtx->asn1r_msg_level - 1] = fdir_dir_list_done;
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}
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/************************************************************************/
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/* fdir_dir_entry */
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/* file directory response is being decoded: directory sequence was */
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/* encountered. */
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/************************************************************************/
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static ST_VOID fdir_dir_entry (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("fdir_dir_entry");
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fop_info->num_dir_ent++; /* increment directory entry count */
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if (fop_info->num_dir_ent > max_dir_ents)
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asn1r_set_dec_err (aCtx, RESP_UNSPECIFIED);
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ASN1R_TAG_ADD (aCtx, CTX|CONSTR,0,fdir_fname_cstr);
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}
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/************************************************************************/
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/* fdir_fname_cstr */
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/* request domain download request is being decoded: filename cstr was */
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/* encountered. */
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/************************************************************************/
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static ST_VOID fdir_fname_cstr (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("fdir_fname_cstr");
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aCtx->asn1r_c_done_fun [aCtx->asn1r_msg_level] = fdir_fname_cstr_done;
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_ms_get_mms_fname (aCtx, (FILE_NAME *)(ent_ptr + 1),
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max_dir_ents, &ent_ptr->num_of_fname);
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}
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/************************************************************************/
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/* fdir_fname_cstr_done */
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/* request domain download request is being decoded: file name list */
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/* constructor done was encountered. */
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/************************************************************************/
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static ST_VOID fdir_fname_cstr_done (ASN1_DEC_CTXT *aCtx)
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{
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ASN1R_TAG_ADD (aCtx, CTX | CONSTR, 1, fdir_get_fil_attr);
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}
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/************************************************************************/
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/* fdir_get_fil_attr */
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/* file directory response is being decoded: file attributes constr was */
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/* encountered. */
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/************************************************************************/
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static ST_VOID fdir_get_fil_attr (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("fdir_get_fil_attr");
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ASN1R_TAG_ADD (aCtx, CTX, 0, fdir_get_fil_siz);
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}
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/************************************************************************/
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/* fdir_get_fil_siz */
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/* file directory response is being decoded: file size was found, */
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/* modified time can be next, or can be done. */
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/************************************************************************/
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static ST_VOID fdir_get_fil_siz (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("fdir_get_fil_si");
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if (asn1r_get_u32 (aCtx, &(ent_ptr->fsize))) /* read the file size */
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asn1r_set_dec_err (aCtx, RESP_BAD_VALUE);
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ASN1R_TAG_ADD (aCtx, CTX,1,fdir_get_fil_mtim);
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aCtx->asn1r_c_done_fun [aCtx->asn1r_msg_level] = NULL; /* ok for file attr to be done */
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aCtx->asn1r_c_done_fun [aCtx->asn1r_msg_level-1] = fdir_dir_ent_done;
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}
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/************************************************************************/
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/* fdir_get_fil_mtim */
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/* file directory response is being decoded: directory entry was */
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/* encountered, and modified time was found; creator can be next. */
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/************************************************************************/
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static ST_VOID fdir_get_fil_mtim (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("fdir_get_fil_mtim");
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ent_ptr->mtimpres = SD_TRUE; /* set modify time present */
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if (asn1r_get_time (aCtx, &ent_ptr->mtime)) /* read the last modified time */
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asn1r_set_dec_err (aCtx, RESP_BAD_VALUE);
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}
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/************************************************************************/
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/* fdir_dir_ent_done */
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/* DECODING file directory response: directory entry was completed. */
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/* Re-initialize the valid states. */
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/************************************************************************/
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static ST_VOID fdir_dir_ent_done (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("fdir_dir_ent_done");
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/* point to where the next directory entry will start */
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ent_ptr = (FDIR_DIR_ENT *)(((FILE_NAME *)(ent_ptr + 1))
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+ (ent_ptr -> num_of_fname));
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ASN1R_TAG_ADD (aCtx, UNI | CONSTR, SEQ_CODE, fdir_dir_entry);
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}
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/************************************************************************/
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/* fdir_dir_list_done */
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/* DECODING file directory response: directory list was completed. */
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/* Re-initialize the valid states. */
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/************************************************************************/
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static ST_VOID fdir_dir_list_done (ASN1_DEC_CTXT *aCtx)
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{
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ST_INT resp_size;
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ST_INT i;
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ST_INT fname_count;
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MLOG_CDEC0 ("fdir_dir_list_done");
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fname_count = 0;
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ASN1R_TAG_ADD (aCtx, CTX, 1, fdir_more_follows);
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/* find the exact size of the storage used */
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dir_ptr = (FDIR_DIR_ENT *)(fop_info + 1);
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for (i=0; i < fop_info->num_dir_ent; ++i)
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{
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fname_count += dir_ptr->num_of_fname;
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dir_ptr = (FDIR_DIR_ENT *)(((FILE_NAME *)(dir_ptr + 1))
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+ (dir_ptr -> num_of_fname));
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}
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/* give back unused storage */
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resp_size = sizeof (FDIR_RESP_INFO)
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+ ((fop_info->num_dir_ent) * sizeof (FDIR_DIR_ENT))
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+ (fname_count * sizeof (FILE_NAME));
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_mms_dec_info = (*m_realloc_os_fun) (_mms_dec_info,resp_size);
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fop_info = (FDIR_RESP_INFO *) _mms_dec_info;
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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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/* fdir_more_follows */
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/* file directory response is being decoded: more follows indicator */
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/* has been encountered. */
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/************************************************************************/
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static ST_VOID fdir_more_follows (ASN1_DEC_CTXT *aCtx)
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{
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MLOG_CDEC0 ("fdir_more_follows");
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if (asn1r_get_bool (aCtx, &(fop_info->more_follows))) /* read more follows */
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asn1r_set_dec_err (aCtx, RESP_BAD_VALUE);
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_ms_set_cs_check (aCtx); /* check for Companion Standard info */
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}
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#ifndef MMS_LITE
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/************************************************************************/
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/************************************************************************/
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/* mp_fdir */
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/* This function is called from either the application or the virtual */
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/* machine to ENCODE the file directory request. */
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/************************************************************************/
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MMSREQ_PEND *mp_fdir (ST_INT chan, FDIR_REQ_INFO *info_ptr)
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{
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return (_mms_req_send (MMSOP_FILE_DIR,
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M_CAST_MK_FUN (_ms_mk_fdir_req),
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chan,(ST_CHAR *)info_ptr));
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}
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#else
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/************************************************************************/
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/************************************************************************/
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/* mpl_fdir */
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/* This function is called from either the application or the virtual */
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/* machine to ENCODE the file directory request. */
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/************************************************************************/
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ST_RET mpl_fdir (FDIR_REQ_INFO *info_ptr)
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{
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return (_mms_req_fin (MMSOP_FILE_DIR,
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M_CAST_MK_FUN (_ms_mk_fdir_req),
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(ST_CHAR *)info_ptr));
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}
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#endif
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/************************************************************************/
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/************************************************************************/
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/* _ms_mk_fdir_req */
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/* ENCODE a file directory REQUEST: */
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/************************************************************************/
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ST_VOID _ms_mk_fdir_req (ASN1_ENC_CTXT *aCtx, FDIR_REQ_INFO *info)
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{
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FILE_NAME *fname_idx;
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if (info->cont_after_pres)
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{ /* write continue after name */
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asn1r_strt_constr (aCtx);
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fname_idx = (FILE_NAME *)(info + 1);
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fname_idx += info->num_of_fs_fname;
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_ms_wr_mms_fname (aCtx, fname_idx, info->num_of_ca_fname);
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asn1r_fin_constr (aCtx, 1,CTX,DEF); /* context specific tag 1 */
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}
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if (info->filespec_pres)
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{ /* write the file specification */
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asn1r_strt_constr (aCtx);
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fname_idx = (FILE_NAME *)(info + 1);
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_ms_wr_mms_fname (aCtx, fname_idx, info->num_of_fs_fname);
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asn1r_fin_constr (aCtx, 0,CTX,DEF); /* context specific tag 0 */
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}
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/* write the context specific tag for this opcode */
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asn1r_fin_constr (aCtx, MMSOP_FILE_DIR,CTX,DEF);
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}
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