Files
microser/mmslib/mmsle/rq_jread.c
2026-06-15 15:48:16 +08:00

432 lines
16 KiB
C

/************************************************************************/
/* SISCO SOFTWARE MODULE HEADER *****************************************/
/************************************************************************/
/* (c) Copyright Systems Integration Specialists Company, Inc., */
/* 1986 - 2001, All Rights Reserved. */
/* */
/* PROPRIETARY AND CONFIDENTIAL */
/* */
/* MODULE NAME : rq_jread.c */
/* PRODUCT(S) : MMSEASE, MMSEASE-LITE */
/* */
/* MODULE DESCRIPTION : */
/* This module contains the requester portion of read journal. */
/* It decodes the read journal response (confirm) & encodes the */
/* read journal request. */
/* */
/* GLOBAL FUNCTIONS DEFINED IN THIS MODULE : */
/* */
/* MODIFICATION LOG : */
/* Date Who Rev Comments */
/* -------- --- ------ ------------------------------------------- */
/* 03/11/04 GLB 07 Remove "thisFileName" */
/* 08/28/03 EJV 06 Corr spelling for 'receive'. */
/* 12/20/01 JRB 05 Converted to use ASN1R (re-entrant ASN1) */
/* 09/13/99 MDE 04 Added SD_CONST modifiers */
/* 03/23/99 MDE 03 Changes to decode buffer allocation scheme */
/* 06/15/98 MDE 02 Changes to allow compile under C++ */
/* 08/15/97 MDE 01 BTOD handling changes */
/* 04/02/97 DTL 7.00 MMSEASE 7.0 release. See MODL70.DOC for */
/* history. */
/************************************************************************/
#include "glbtypes.h"
#include "sysincs.h"
#include "mmsdefs.h"
#include "mms_pjou.h"
#include "asn1defs.h"
/************************************************************************/
/* variables global to the DECODE portion : */
static JREAD_RESP_INFO *rsp_info;
static JOURNAL_ENTRY *je_ptr;
static ST_INT max_jou_ent;
static ST_INT max_ec_vars;
/************************************************************************/
/* variables global to the ENCODE portion : NONE */
static ST_VOID jread_get_orig_ae (ASN1_DEC_CTXT *aCtx);
static ST_VOID jread_jou_entry_cstr (ASN1_DEC_CTXT *aCtx);
static ST_VOID jread_get_more_follows (ASN1_DEC_CTXT *aCtx);
static ST_VOID jread_jou_entry_cstr_done (ASN1_DEC_CTXT *aCtx);
static ST_VOID jread_ec_done (ASN1_DEC_CTXT *aCtx);
static ST_VOID jread_ec_cstr (ASN1_DEC_CTXT *aCtx);
static ST_VOID jread_orig_ae_cstr_done (ASN1_DEC_CTXT *aCtx);
static ST_VOID jread_orig_ae_done (ASN1_DEC_CTXT *aCtx);
static ST_VOID jread_entry_id_cstr_done (ASN1_DEC_CTXT *aCtx);
static ST_VOID jread_entry_id_prim (ASN1_DEC_CTXT *aCtx);
static ST_VOID jread_entry_id_cstr (ASN1_DEC_CTXT *aCtx);
static ST_VOID jread_list_of_je_cstr_done (ASN1_DEC_CTXT *aCtx);
static ST_VOID jread_list_of_je_cstr (ASN1_DEC_CTXT *aCtx);
/************************************************************************/
/************************************************************************/
/* mms_jread_rsp */
/* This function is called from MMSDEC when the opcode for this */
/* operation is decoded. Setup state machine function pointers, etc. */
/************************************************************************/
ST_VOID mms_jread_rsp (ASN1_DEC_CTXT *aCtx)
{
ST_INT rsp_size;
MLOG_CDEC0 ("Read Journal Response");
#if defined(FIXED_DECBUF)
max_jou_ent = m_cl_max_journal_entries;
max_ec_vars = m_cl_max_entry_content;
rsp_size = mmsl_dec_info_size;
#else
/* determine maximum storage - this over-estimates the maximum */
/* required storage, storage for the maximum number of journal */
/* entries would be sufficient. */
max_jou_ent = _mmsdec_msglen/10;
max_ec_vars = _mmsdec_msglen/4;
if (m_cl_max_journal_entries && (max_jou_ent > m_cl_max_journal_entries))
max_jou_ent = m_cl_max_journal_entries;
if (m_cl_max_entry_content && (max_ec_vars > m_cl_max_entry_content))
max_ec_vars = m_cl_max_entry_content;
rsp_size = sizeof (JREAD_RESP_INFO)
+ (sizeof (JOURNAL_ENTRY) * max_jou_ent)
+ (sizeof (VAR_INFO) * max_ec_vars);
#endif
/* get storage for request information */
rsp_info = (JREAD_RESP_INFO *) _m_get_dec_buf (aCtx, rsp_size);
je_ptr = (JOURNAL_ENTRY *) (rsp_info + 1);
rsp_info->more_follows = SD_FALSE; /* set default value */
ASN1R_TAG_ADD (aCtx, CTX | CONSTR, 0, jread_list_of_je_cstr);
}
/************************************************************************/
/* jread_list_of_je_cstr */
/* read journal RESPONSE (confirm) is being decoded: list of journal */
/* entry constructor was encountered. */
/************************************************************************/
static ST_VOID jread_list_of_je_cstr (ASN1_DEC_CTXT *aCtx)
{
MLOG_CDEC0 ("jread_list_of_je_cstr");
ASN1R_TAG_ADD (aCtx, UNI | CONSTR, SEQ_CODE, jread_jou_entry_cstr);
aCtx->asn1r_c_done_fun [aCtx->asn1r_msg_level] = jread_list_of_je_cstr_done;
}
/************************************************************************/
/* jread_jou_entry_cstr */
/* read journal response is being decoded: journal entry cstr was */
/* encountered. */
/************************************************************************/
static ST_VOID jread_jou_entry_cstr (ASN1_DEC_CTXT *aCtx)
{
MLOG_CDEC0 ("jread_jou_entry_cstr");
rsp_info->num_of_jou_entry++; /* increment # of journal entry */
if (rsp_info->num_of_jou_entry > max_jou_ent)
{
asn1r_set_dec_err (aCtx, RESP_BAD_VALUE);
return;
}
ASN1R_TAG_ADD (aCtx, CTX, 0, jread_entry_id_prim);
ASN1R_TAG_ADD (aCtx, CTX | CONSTR, 0, jread_entry_id_cstr);
}
/************************************************************************/
/* jread_entry_id_prim */
/* read journal response is being decoded: entry id primitive was */
/* encountered. */
/************************************************************************/
static ST_VOID jread_entry_id_prim (ASN1_DEC_CTXT *aCtx)
{
MLOG_CDEC0 ("jread_entry_id_prim");
/* decode entry id back onto itself */
je_ptr->entry_id = aCtx->asn1r_field_ptr;
if (asn1r_get_octstr (aCtx, je_ptr->entry_id)) /* read entry id */
asn1r_set_dec_err (aCtx, RESP_UNSPECIFIED);
je_ptr->entry_id_len = aCtx->asn1r_octetcount;
ASN1R_TAG_ADD (aCtx, CTX | CONSTR, 1, jread_get_orig_ae);
}
/************************************************************************/
/* jread_entry_id_cstr */
/* read journal response is being decoded: entry id constructor was */
/* encountered. */
/************************************************************************/
static ST_VOID jread_entry_id_cstr (ASN1_DEC_CTXT *aCtx)
{
MLOG_CDEC0 ("jread_entry_id_cstr");
/* decode entry id back onto itself */
je_ptr->entry_id = aCtx->asn1r_field_ptr;
/* set up done decoding octet cstr destination */
aCtx->asn1r_c_done_fun [aCtx->asn1r_msg_level] = jread_entry_id_cstr_done;
/* get entry id from the received message */
/* set maximum length to accept entire message */
asn1r_get_octstr_cstr (aCtx, _mmsdec_msglen, je_ptr->entry_id);
}
/************************************************************************/
/* jread_entry_id_cstr_done */
/* read journal response is being decoded: entry id constructor done */
/* was encountered. */
/************************************************************************/
static ST_VOID jread_entry_id_cstr_done (ASN1_DEC_CTXT *aCtx)
{
je_ptr->entry_id_len = aCtx->asn1r_octetcount; /* save entry id len */
ASN1R_TAG_ADD (aCtx, CTX | CONSTR, 1, jread_get_orig_ae);
}
/************************************************************************/
/* jread_get_orig_ae */
/* read journal response is being decoded: originating ae cstr was */
/* encountered. */
/************************************************************************/
static ST_VOID jread_get_orig_ae (ASN1_DEC_CTXT *aCtx)
{
MLOG_CDEC0 ("jread_get_orig_ae");
_ms_get_mms_app_ref (aCtx, &je_ptr->orig_ae, &je_ptr->orig_ae_len, jread_orig_ae_done);
}
/************************************************************************/
/* jread_orig_ae_done */
/* read journal response is being decoded: originating ae cstr done was */
/* encountered. */
/************************************************************************/
static ST_VOID jread_orig_ae_done (ASN1_DEC_CTXT *aCtx)
{
aCtx->asn1r_c_done_fun[aCtx->asn1r_msg_level] = jread_orig_ae_cstr_done;
}
/************************************************************************/
/* jread_orig_ae_cstr_done */
/* read journal response is being decoded: originating ae cstr done was */
/* encountered. */
/************************************************************************/
static ST_VOID jread_orig_ae_cstr_done (ASN1_DEC_CTXT *aCtx)
{
ASN1R_TAG_ADD (aCtx, CTX | CONSTR, 2, jread_ec_cstr);
}
/************************************************************************/
/* jread_ec_cstr */
/* read journal response is being decoded: entry content constructor */
/* was encountered. */
/************************************************************************/
static ST_VOID jread_ec_cstr (ASN1_DEC_CTXT *aCtx)
{
MLOG_CDEC0 ("jread_ec_cstr");
_ms_get_jou_ent_cont (aCtx, &je_ptr->ent_content, max_ec_vars, jread_ec_done);
}
/************************************************************************/
/* jread_ec_done */
/* read journal response is being decoded: entry content has been */
/* obtained. */
/************************************************************************/
static ST_VOID jread_ec_done (ASN1_DEC_CTXT *aCtx)
{
VAR_INFO *vi_ptr;
MLOG_CDEC0 ("jread_ec_done");
/* point to where next will go */
if (je_ptr->ent_content.entry_form_tag == 2 &&
je_ptr->ent_content.ef.data.list_of_var_pres)
{
vi_ptr = (VAR_INFO *) (je_ptr + 1);
je_ptr = (JOURNAL_ENTRY *)
(vi_ptr + je_ptr->ent_content.ef.data.num_of_var);
}
else
je_ptr++;
aCtx->asn1r_c_done_fun [aCtx->asn1r_msg_level] = jread_jou_entry_cstr_done;
}
/************************************************************************/
/* jread_jou_entry_cstr_done */
/* read journal response is being decoded: journal entry constructor */
/* done was encountered. */
/************************************************************************/
static ST_VOID jread_jou_entry_cstr_done (ASN1_DEC_CTXT *aCtx)
{
ASN1R_TAG_ADD (aCtx, UNI | CONSTR, SEQ_CODE, jread_jou_entry_cstr);
}
/************************************************************************/
/* jread_list_of_je_cstr_done */
/* read journal response is being decoded: list of journal entry cstr */
/* done was encountered. */
/************************************************************************/
static ST_VOID jread_list_of_je_cstr_done (ASN1_DEC_CTXT *aCtx)
{
ST_INT rsp_size;
ASN1R_TAG_ADD (aCtx, CTX, 1, jread_get_more_follows);
/* find actual size for response info */
rsp_size = (char *) je_ptr - (char *) rsp_info;
/* give back unused storage */
_mms_dec_info = (*m_realloc_os_fun) (_mms_dec_info,rsp_size);
rsp_info = (JREAD_RESP_INFO *) _mms_dec_info;
_ms_set_cs_check (aCtx); /* check for Companion Standard info */
}
/************************************************************************/
/* jread_get_more_follows */
/* read journal response is being decoded: more follows indicator */
/* was encountered. */
/************************************************************************/
static ST_VOID jread_get_more_follows (ASN1_DEC_CTXT *aCtx)
{
MLOG_CDEC0 ("jread_get_more_follows");
if (asn1r_get_bool (aCtx, &rsp_info->more_follows)) /* read more follows */
asn1r_set_dec_err (aCtx, RESP_BAD_VALUE);
_ms_set_cs_check (aCtx); /* check for Companion Standard info */
}
#ifndef MMS_LITE
/************************************************************************/
/************************************************************************/
/* mp_jread */
/* This function is called from either the application or the virtual */
/* machine to ENCODE and send the read journal request. */
/************************************************************************/
MMSREQ_PEND *mp_jread (ST_INT chan, JREAD_REQ_INFO *info_ptr)
{
return (_mms_req_send (MMSOP_READ_JOURNAL,
M_CAST_MK_FUN (_ms_mk_jread_req),
chan,(ST_CHAR *)info_ptr));
}
#else
/************************************************************************/
/************************************************************************/
/* mpl_jread */
/* This function is called from either the application or the virtual */
/* machine to ENCODE the read journal request. */
/************************************************************************/
ST_RET mpl_jread (JREAD_REQ_INFO *info_ptr)
{
return (_mms_req_fin (MMSOP_READ_JOURNAL,
M_CAST_MK_FUN (_ms_mk_jread_req),
(ST_CHAR *)info_ptr));
}
#endif
/************************************************************************/
/************************************************************************/
/* _ms_mk_jread_req */
/* ENCODE a read journal REQUEST: */
/************************************************************************/
ST_VOID _ms_mk_jread_req (ASN1_ENC_CTXT *aCtx, JREAD_REQ_INFO *info)
{
ST_INT i;
ST_CHAR **var_ptr;
asn1r_strt_constr (aCtx); /* start sequence constructor */
if (info->sa_entry_pres)
{ /* write start after entry */
asn1r_strt_constr (aCtx); /* start context tag 5 cstr */
asn1r_wr_octstr (aCtx, info->entry_spec, info->entry_spec_len);
asn1r_fin_prim (aCtx, 1,CTX);
asn1r_wr_btod (aCtx, &info->time_spec);
asn1r_fin_prim (aCtx, 0,CTX);
asn1r_fin_constr (aCtx, 5,CTX,DEF); /* finish context tag 5 cstr */
}
if (info->list_of_var_pres)
{ /* write list of variables */
asn1r_strt_constr (aCtx); /* start context tag 4 cstr */
var_ptr = (ST_CHAR **) (info + 1);
var_ptr += info->num_of_var - 1; /* point to last entry */
for (i = 0; i < info->num_of_var; i++)
{
asn1r_wr_vstr (aCtx, *var_ptr); /* write the variable */
asn1r_fin_prim (aCtx, VISTR_CODE,UNI); /* universal string */
var_ptr--;
}
asn1r_fin_constr (aCtx, 4,CTX,DEF); /* finish context tag 4 cstr */
}
if (info->range_stop_pres)
{ /* write range stop */
asn1r_strt_constr (aCtx); /* start context tag 2 cstr */
if (info->stop_tag == SD_TRUE)
{ /* write the number of entries */
asn1r_wr_i32 (aCtx, info->num_of_entries);
asn1r_fin_prim (aCtx, 1,CTX);
}
else
{ /* write the ending time */
asn1r_wr_btod (aCtx, &info->end_time);
asn1r_fin_prim (aCtx, 0,CTX);
}
asn1r_fin_constr (aCtx, 2,CTX,DEF); /* finish context tag 2 cstr */
}
if (info->range_start_pres)
{ /* write range start */
asn1r_strt_constr (aCtx); /* start context tag 1 cstr */
if (info->start_tag == 1)
{ /* write the starting entry */
asn1r_wr_octstr (aCtx, info->start_entry, info->start_entry_len);
asn1r_fin_prim (aCtx, 1,CTX);
}
else
{ /* write the starting time */
asn1r_wr_btod (aCtx, &info->start_time);
asn1r_fin_prim (aCtx, 0,CTX);
}
asn1r_fin_constr (aCtx, 1,CTX,DEF); /* finish context tag 1 cstr */
}
asn1r_strt_constr (aCtx); /* start context tag 0 cstr */
_ms_wr_mms_objname (aCtx, &info->jou_name); /* write the journal name */
asn1r_fin_constr (aCtx, 0,CTX,DEF); /* finish context tag 0 cstr */
/* write the context specific explicit tag for this opcode. */
asn1r_fin_constr (aCtx, MMSOP_READ_JOURNAL,CTX,DEF); /* tag = opcode, ctx constr */
}