lnk/microser
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

自主协议库编译通过

Browse Source
This commit is contained in:
lnk
2026-06-15 15:48:16 +08:00
parent d3579a2aa7
commit 7205cb5cb9
621 changed files with 224958 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

488
mmslib/ositcps/copp_dec.c Normal file
View File

@@ -0,0 +1,488 @@
/************************************************************************/
/* SISCO SOFTWARE MODULE HEADER *****************************************/
/************************************************************************/
/* (c) Copyright Systems Integration Specialists Company, Inc., */
/* 1997-2002, All Rights Reserved */
/* */
/* PROPRIETARY AND CONFIDENTIAL */
/* */
/* MODULE NAME : copp_dec.c */
/* PRODUCT(S) : MOSI Stack (over TP4) */
/* */
/* MODULE DESCRIPTION : */
/* This file implements decoding of most confirm/indication*/
/* functions. */
/* */
/* For information see the: */
/* ISO 8822 "Information processing systems - Open Systems */
/* Interconnection - Connection oriented presentation service */
/* definition. */
/* ISO 8823 "Information processing systems - Open Systems */
/* Interconnection - Connection oriented presentation protocol */
/* specification. */
/* */
/* */
/* GLOBAL FUNCTIONS DEFINED IN THIS MODULE : */
/* */
/* u_cosp_bind_cnf */
/* u_cosp_unbind_cnf */
/* */
/* u_cosp_rel_cnf_pos */
/* u_cosp_rel_ind */
/* u_cosp_p_abort_ind */
/* u_cosp_data_ind */
/* */
/* */
/* MODIFICATION LOG : */
/* Date Who Rev Comments */
/* -------- --- ------ ------------------------------------------- */
/* 02/26/09 JRB 12 Fix to handle PDV len=0 or User-data len=0. */
/* 04/28/08 GLB 11 Removed CALLED_ONLY and CALLING_ONLY */
/* 01/02/02 JRB 10 Converted to use ASN1R (re-entrant ASN1) */
/* 04/24/01 JRB 09 Allow octet-aligned PDV. Don't think it's */
/* legal but some stacks (ONE?) may use it. */
/* 02/21/01 JRB 08 Fix previous change. Was checking wrong byte */
/* in PDU for Indef Len. Use global flag instead*/
/* 12/20/00 JRB 07 asn1_skip_elmnt doesn't work for indef len */
/* encoding. Use "parse_next" instead. */
/* 08/13/98 JRB 06 Lint cleanup. */
/* 03/18/98 JRB 05 Use defines (not variables) for ASN1 errors. */
/* 02/20/98 JRB 04 Chg abort_reason & event_id to ST_INT8. */
/* 12/22/97 JRB 03 Use ST_INT8. */
/* 05/27/97 JRB 7.00 MMSEASE 7.0 release. */
/* 03/19/97 JRB 02 Add "CALLING" support. General cleanup. */
/* 02/27/97 JRB 01 Created */
/************************************************************************/
#ifdef DEBUG_SISCO
static char *thisFileName = __FILE__;
#endif
#include "glbtypes.h"
#include "sysincs.h"
#include "mem_chk.h"
#include "asn1defs.h"
#include "acse2.h"
#include "copp.h"
#include "cosp_usr.h"
/* START_p_user_data used by everyone, so proto in include */
/* START_pdv_list used by everyone, so proto in include */
static ST_VOID decode_pdv_tsn (ASN1_DEC_CTXT *aCtx);
static ST_VOID decode_pdv_pci (ASN1_DEC_CTXT *aCtx);
static ST_VOID START_pdv (ASN1_DEC_CTXT *aCtx);
static ST_VOID parse_next_done (ASN1_DEC_CTXT *aCtx);
static ST_VOID END_pdv (ASN1_DEC_CTXT *aCtx);
static ST_VOID END_pdv_list (ASN1_DEC_CTXT *aCtx);
static ST_VOID END_p_user_data (ASN1_DEC_CTXT *aCtx);
/************************************************************************/
/* Global Variables */
/************************************************************************/
ST_CHAR expected_pdv_pci;
ST_UCHAR *pdv_data_ptr;
ST_INT pdv_data_len;
ST_BOOLEAN p_user_data_is_outer; /* Is P-User-data outermost constr?*/
/* SD_TRUE or SD_FALSE */
/************************************************************************/
/* u_cosp_bind_cnf */
/************************************************************************/
ST_VOID u_cosp_bind_cnf (ST_LONG user_bind_id, ST_LONG cosp_bind_id, ST_RET result)
{
COPP_LOG_DEC3 ("P-BIND.cnf: copp_user_bind_id =0x%08X copp_bind_id =%9ld result =%d",
user_bind_id, cosp_bind_id, result);
u_copp_bind_cnf (user_bind_id, cosp_bind_id, result);
}
/************************************************************************/
/* u_cosp_unbind_cnf */
/************************************************************************/
ST_VOID u_cosp_unbind_cnf (ST_LONG user_bind_id)
{
COPP_LOG_DEC1 ("P-UNBIND.cnf: copp_user_bind_id =0x%08X", user_bind_id);
u_copp_unbind_cnf (user_bind_id);
}
/* See "coppdcp.c" for "u_cosp_con_cnf_pos" function. */
/* See "coppdcpr.c" for "u_cosp_con_cnf_neg" function. */
/************************************************************************/
/* u_cosp_rel_cnf_pos */
/*----------------------------------------------------------------------*/
/* This USER function is called by the SS-Provider to indicate positive */
/* result of the release operation. */
/* */
/* Parameters: */
/* acse_conn Pointer to connection info */
/* */
/* Return: */
/* ST_VOID */
/************************************************************************/
ST_VOID u_cosp_rel_cnf_pos (ACSE_CONN *acse_conn)
{
ST_INT8 abort_reason;
ASN1_DEC_CTXT localDecCtx; /* For readability, use "aCtx" to access this.*/
ASN1_DEC_CTXT *aCtx = &localDecCtx;
memset (aCtx, 0, sizeof (ASN1_DEC_CTXT)); /* CRITICAL: start clean */
if (acse_conn->copp_state != COPP_STATE_CONNECTED)
{
COPP_LOG_ERR1 ("COPP-ERROR: Cannot process S-RELEASE.cnf+ (Illegal state=%d)",
acse_conn->copp_state);
return;
}
aCtx->asn1r_decode_method = ASN1_TAG_METHOD; /* Use asn1_tag method for decoding. */
aCtx->asn1r_decode_done_fun = asn1r_done_err; /* done function = error fun */
aCtx->asn1r_err_fun = NULL; /* set up error detected fun */
/* Clean out old stuff from structure. */
decode_acse_conn = acse_conn; /* Save in global so asn1r_decode_asn1 (aCtx, */
/* can fill it in. */
/* Set the PCI to be used during P-User-Data decode. */
expected_pdv_pci = decode_acse_conn->pciacse;
p_user_data_is_outer = SD_TRUE; /* P-User-data IS outermost constr. */
/* CRITICAL: Init APDU ptr & len. Changed only if APDU found in msg. */
acse_conn->apdu_ptr = NULL;
acse_conn->apdu_len = 0;
/* CRITICAL: Init global PDV ptr & len. Changed only if PDV found in msg.*/
pdv_data_ptr = NULL;
pdv_data_len = 0;
/* Call 'asn1r_decode_asn1 (aCtx,' to parse the message. */
ASN1R_TAG_ADD (aCtx, APP|CONSTR,1,START_p_user_data);
asn1r_decode_asn1 (aCtx, acse_conn->ppdu_ptr,acse_conn->ppdu_len);
if (aCtx->asn1r_pdu_dec_err != NO_DECODE_ERR)
{
COPP_LOG_ERR1 ("COPP-ERROR: ASN.1 decode of S-Release.cnf failed, err=%d", aCtx->asn1r_pdu_dec_err);
abort_reason = 1; /* unrecognized-ppdu */
/* Don't send ARP PPDU. COSP already thinks we're released. */
/* Pass P-P-Abort.ind to COPP-user. */
u_copp_p_abort_ind (acse_conn, abort_reason);
}
else
{
COPP_LOG_DEC2 ("P-RELEASE.cnf+: acse_conn_id =0x%08X user_conn_id =%4ld",
acse_conn, acse_conn->user_conn_id);
COPP_LOG_DECC1 ("User data length: %d", acse_conn->apdu_len);
COPP_LOG_DECH (acse_conn->apdu_len, acse_conn->apdu_ptr);
if (acse_conn->cr)
{
acse_conn->cr = SD_FALSE;
acse_conn->rl = SD_FALSE; /* and stay in COPP_STATE_CONNECTED */
}
else
acse_conn->copp_state = COPP_STATE_IDLE;
u_copp_rel_cnf_pos (acse_conn);
}
}
/* See "coppdcp.c" for "u_cosp_con_ind" function. */
/************************************************************************/
/* u_cosp_rel_ind */
/*----------------------------------------------------------------------*/
/* This USER function is called by the SS-Provider to indicate that a */
/* remote node wishes to release a connection. */
/* */
/* Parameters: */
/* ACSE_CONN *acse_conn Pointer to connection info */
/* */
/* Return: */
/* ST_VOID */
/************************************************************************/
ST_VOID u_cosp_rel_ind (ACSE_CONN *acse_conn)
{
ST_INT8 abort_reason;
ST_INT8 event_id;
ASN1_DEC_CTXT localDecCtx; /* For readability, use "aCtx" to access this.*/
ASN1_DEC_CTXT *aCtx = &localDecCtx;
memset (aCtx, 0, sizeof (ASN1_DEC_CTXT)); /* CRITICAL: start clean */
if (acse_conn->copp_state != COPP_STATE_CONNECTED)
{
COPP_LOG_ERR1 ("COPP-ERROR: Cannot process S-RELEASE.ind (Illegal state=%d)",
acse_conn->copp_state);
return;
}
/* Set release collision flags. */
if (acse_conn->rl)
acse_conn->cr = SD_TRUE;
acse_conn->rl = SD_TRUE;
aCtx->asn1r_decode_method = ASN1_TAG_METHOD; /* Use asn1_tag method for decoding. */
aCtx->asn1r_decode_done_fun = asn1r_done_err; /* done function = error fun */
aCtx->asn1r_err_fun = NULL; /* set up error detected fun */
/* Clean out old stuff from structure. */
decode_acse_conn = acse_conn; /* Save in global so asn1r_decode_asn1 (aCtx, */
/* can fill it in. */
/* Set the PCI to be used during P-User-Data decode. */
expected_pdv_pci = decode_acse_conn->pciacse;
p_user_data_is_outer = SD_TRUE; /* P-User-data IS outermost constr. */
/* CRITICAL: Init APDU ptr & len. Changed only if APDU found in msg. */
acse_conn->apdu_ptr = NULL;
acse_conn->apdu_len = 0;
/* CRITICAL: Init global PDV ptr & len. Changed only if PDV found in msg.*/
pdv_data_ptr = NULL;
pdv_data_len = 0;
/* Call 'asn1r_decode_asn1 (aCtx,' to parse the message. */
ASN1R_TAG_ADD (aCtx, APP|CONSTR,1,START_p_user_data);
asn1r_decode_asn1 (aCtx, acse_conn->ppdu_ptr,acse_conn->ppdu_len);
if (aCtx->asn1r_pdu_dec_err != NO_DECODE_ERR)
{
COPP_LOG_ERR1 ("COPP-ERROR: ASN.1 decode of S-Release.ind failed, err=%d", aCtx->asn1r_pdu_dec_err);
acse_conn->copp_state = COPP_STATE_IDLE;
abort_reason = 1; /* unrecognized-ppdu */
event_id = 14; /* s-release-indication */
/* Encode and send ARP PPDU. */
copp_p_abort_req (acse_conn, abort_reason, event_id);
/* Pass P-P-Abort.ind to COPP-user. */
u_copp_p_abort_ind (acse_conn, abort_reason);
}
else
{
COPP_LOG_DEC2 ("P-RELEASE.ind: acse_conn_id =0x%08X user_conn_id =%4ld",
acse_conn, acse_conn->user_conn_id);
COPP_LOG_DECC1 ("User data length: %d", acse_conn->apdu_len);
COPP_LOG_DECH (acse_conn->apdu_len, acse_conn->apdu_ptr);
u_copp_rel_ind (acse_conn);
}
}
/************************************************************************/
/* u_cosp_p_abort_ind */
/*----------------------------------------------------------------------*/
/* This USER function is called by the SS-Provider to indicate that a */
/* connection has been aborted by SS-provider (local or remote). */
/* */
/* Parameters: */
/* ACSE_CONN *acse_con Pointer to connection info */
/* ST_INT reason see def reasons COSP_P_AB_IND_... above */
/* */
/* Return: */
/* ST_VOID */
/************************************************************************/
ST_VOID u_cosp_p_abort_ind (ACSE_CONN *acse_conn, ST_INT reason)
{
if (acse_conn->copp_state == COPP_STATE_IDLE)
{
COPP_LOG_ERR1 ("COPP-ERROR: Cannot process S-P-ABORT.ind (Illegal state=%d)",
acse_conn->copp_state);
return;
}
COPP_LOG_DEC3 ("P-P-ABORT.ind: acse_conn_id =0x%08X user_conn_id =%4ld reason =%d",
acse_conn, acse_conn->user_conn_id, reason + 0x100);
acse_conn->copp_state = COPP_STATE_IDLE;
u_copp_p_abort_ind (acse_conn, reason + 0x100);
}
/************************************************************************/
/* u_cosp_data_ind */
/*----------------------------------------------------------------------*/
/* This USER function is called by the SS-Provider to indicate that a */
/* data SPDU has been received. */
/* */
/* Parameters: */
/* ACSE_CONN *acse_conn Pointer to connection info */
/* */
/* Return: */
/* ST_VOID */
/************************************************************************/
ST_VOID u_cosp_data_ind (ACSE_CONN *acse_conn)
{
ST_INT8 abort_reason;
ST_INT8 event_id;
ASN1_DEC_CTXT localDecCtx; /* For readability, use "aCtx" to access this.*/
ASN1_DEC_CTXT *aCtx = &localDecCtx;
memset (aCtx, 0, sizeof (ASN1_DEC_CTXT)); /* CRITICAL: start clean */
if (acse_conn->copp_state != COPP_STATE_CONNECTED)
{
COPP_LOG_ERR1 ("COPP-ERROR: Cannot process S-DATA.ind (Illegal state=%d)",
acse_conn->copp_state);
return;
}
aCtx->asn1r_decode_method = ASN1_TAG_METHOD; /* Use asn1_tag method for decoding. */
aCtx->asn1r_decode_done_fun = asn1r_done_err; /* done function = error fun */
aCtx->asn1r_err_fun = NULL; /* set up error detected fun */
/* Clean out old stuff from structure. */
decode_acse_conn = acse_conn; /* Save in global so asn1r_decode_asn1 (aCtx, */
/* can fill it in. */
/* Set the PCI to be used during P-User-Data decode. */
expected_pdv_pci = decode_acse_conn->pcimms;
p_user_data_is_outer = SD_TRUE; /* P-User-data IS outermost constr. */
/* CRITICAL: Init APDU ptr & len. Changed only if APDU found in msg. */
acse_conn->apdu_ptr = NULL;
acse_conn->apdu_len = 0;
/* CRITICAL: Init global PDV ptr & len. Changed only if PDV found in msg.*/
pdv_data_ptr = NULL;
pdv_data_len = 0;
/* Call 'asn1r_decode_asn1 (aCtx,' to parse the message. */
ASN1R_TAG_ADD (aCtx, APP|CONSTR,1,START_p_user_data);
asn1r_decode_asn1 (aCtx, acse_conn->ppdu_ptr,acse_conn->ppdu_len);
if (aCtx->asn1r_pdu_dec_err != NO_DECODE_ERR)
{
COPP_LOG_ERR1 ("COPP-ERROR: ASN.1 decode of S-Data.ind failed, err=%d", aCtx->asn1r_pdu_dec_err);
abort_reason = 1; /* unrecognized-ppdu */
event_id = -1; /* Unlisted */
/* Encode and send ARP PPDU. */
copp_p_abort_req (acse_conn, abort_reason, event_id);
/* Pass P-P-Abort.ind to COPP-user. */
u_copp_p_abort_ind (acse_conn, abort_reason);
}
else
{
COPP_LOG_DEC2 ("P-DATA.ind: acse_conn_id =0x%08X user_conn_id =%4ld",
acse_conn, acse_conn->user_conn_id);
COPP_LOG_DECC1 ("User data length: %d", acse_conn->apdu_len);
COPP_LOG_DECH (acse_conn->apdu_len, acse_conn->apdu_ptr);
u_copp_data_ind (acse_conn);
}
}
/*======================================================*/
/* ASN.1 DECODE FUNCTIONS FOR P-USER-DATA */
/* */
/* Used for CP, CPA, CPR, ARU, DT, or REL decode. */
/*======================================================*/
/************************************************************************/
/* START_p_user_data */
/************************************************************************/
ST_VOID START_p_user_data (ASN1_DEC_CTXT *aCtx)
{
ASN1R_TAG_ADD (aCtx, UNI|CONSTR,SEQ_CODE,START_pdv_list);
aCtx->asn1r_c_done_fun [aCtx->asn1r_msg_level] = END_p_user_data;
}
/************************************************************************/
/* START_pdv_list */
/* ACSE also uses this function to decode "EXTERNAL". Although defined */
/* independently, it's encoding is same as "PDV-list". */
/************************************************************************/
ST_VOID START_pdv_list (ASN1_DEC_CTXT *aCtx)
{
ASN1R_TAG_ADD (aCtx, UNI,OBJ_ID_CODE,decode_pdv_tsn);
ASN1R_TAG_ADD (aCtx, UNI,INT_CODE,decode_pdv_pci);
aCtx->asn1r_c_done_fun [aCtx->asn1r_msg_level] = END_pdv_list;
}
/************************************************************************/
/* decode_pdv_tsn */
/************************************************************************/
static ST_VOID decode_pdv_tsn (ASN1_DEC_CTXT *aCtx)
{
MMS_OBJ_ID tsn;
if (asn1r_get_objid (aCtx, tsn.comps,&tsn.num_comps))
{
asn1r_set_dec_err (aCtx, ASN1E_INVALID_BOOLEAN);
return;
}
if (asn1_objidcmp (&tsn, &asn1_obj_id) != 0)
{ /* TSN better be ASN1 */
asn1r_set_dec_err (aCtx, ASN1E_INVALID_BITSTR);
return;
}
ASN1R_TAG_ADD (aCtx, UNI,INT_CODE,decode_pdv_pci);
}
/************************************************************************/
/* decode_pdv_pci */
/************************************************************************/
static ST_VOID decode_pdv_pci (ASN1_DEC_CTXT *aCtx)
{
ST_INT8 pci;
if (asn1r_get_i8 (aCtx, &pci))
{
asn1r_set_dec_err (aCtx, ASN1E_INVALID_BOOLEAN);
return;
}
if (pci != expected_pdv_pci)
{ /* Not the pci we're expecting. */
asn1r_set_dec_err (aCtx, ASN1E_INVALID_BITSTR);
return;
}
ASN1R_TAG_ADD (aCtx, CTX|CONSTR,0,START_pdv); /* Must be single-ASN1-type */
/* Octet-aligned doesn't appear to be legal, but some stacks (ONE?) */
/* may use it. To be friendly, let's accept it. */
ASN1R_TAG_ADD (aCtx, CTX,1,START_pdv); /* Allow octet-aligned */
}
/************************************************************************/
/* START_pdv */
/************************************************************************/
static ST_VOID START_pdv (ASN1_DEC_CTXT *aCtx)
{
/* Should now point to PDV data. Save until decode done. */
pdv_data_ptr = aCtx->asn1r_field_ptr;
/* If this is indefinite length encoding, use "asn1r_parse_next (aCtx,". */
/* If "normal" encoding, use "asn1_skip_elmnt" (faster). */
if (aCtx->asn1r_indef_flag)
{ /* indefinite length encoding */
aCtx->asn1r_c_done_fun [aCtx->asn1r_msg_level] = END_pdv;
asn1r_parse_next (aCtx, parse_next_done);
}
else
{ /* "normal" encoding */
pdv_data_len = aCtx->asn1r_elmnt_len;
asn1_skip_elmnt (aCtx); /* Done decoding PPDU. Let ACSE decode rest. */
}
}
/************************************************************************/
/* parse_next_done */
/* Only used for indefinite length encoding. */
/************************************************************************/
static ST_VOID parse_next_done (ASN1_DEC_CTXT *aCtx)
{ /* called when "asn1r_parse_next (aCtx," is done */
}
/************************************************************************/
/* END_pdv */
/* Only used for indefinite length encoding. */
/************************************************************************/
static ST_VOID END_pdv (ASN1_DEC_CTXT *aCtx)
{
pdv_data_len = aCtx->asn1r_field_ptr - pdv_data_ptr - 2; /* -2 strips 00 00*/
}
/************************************************************************/
/* END_pdv_list */
/************************************************************************/
static ST_VOID END_pdv_list (ASN1_DEC_CTXT *aCtx)
{
}
/************************************************************************/
/* END_p_user_data */
/************************************************************************/
static ST_VOID END_p_user_data (ASN1_DEC_CTXT *aCtx)
{
decode_acse_conn->apdu_ptr = pdv_data_ptr;
decode_acse_conn->apdu_len = pdv_data_len;
if (p_user_data_is_outer) /* Is P-User-data outermost constr? */
aCtx->asn1r_decode_done_fun = NULL; /* done decoding */
}