rtxContext.h

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00001 /*
00002  * Copyright (c) 2003-2017 Objective Systems, Inc.
00003  *
00004  * This software is furnished under a license and may be used and copied
00005  * only in accordance with the terms of such license and with the
00006  * inclusion of the above copyright notice. This software or any other
00007  * copies thereof may not be provided or otherwise made available to any
00008  * other person. No title to and ownership of the software is hereby
00009  * transferred.
00010  *
00011  * The information in this software is subject to change without notice
00012  * and should not be construed as a commitment by Objective Systems, Inc.
00013  *
00014  * PROPRIETARY NOTICE
00015  *
00016  * This software is an unpublished work subject to a confidentiality agreement
00017  * and is protected by copyright and trade secret law.  Unauthorized copying,
00018  * redistribution or other use of this work is prohibited.
00019  *
00020  * The above notice of copyright on this source code product does not indicate
00021  * any actual or intended publication of such source code.
00022  *
00023  *****************************************************************************/
00028 #ifndef _RTXCONTEXT_H_
00029 #define _RTXCONTEXT_H_
00030 
00031 #include "rtxsrc/rtxDList.h"
00032 #include "rtxsrc/rtxStack.h"
00033 
00034 #define OSRTENCBUFSIZ 1024    /* dynamic encode buffer extent size     */
00035 
00040 /* run-time error info structures */
00041 
00042 #define OSRTERRSTKSIZ   8       /* error stack size                     */
00043 #define OSRTMAXERRPRM   5       /* maximum error parameters             */
00044 
00052 typedef struct {
00053    const OSUTF8CHAR* module;
00054    OSINT32      lineno;
00055 } OSRTErrLocn;
00056 
00067 typedef struct {
00068    OSRTErrLocn  stack[OSRTERRSTKSIZ];
00069    OSINT16      status;
00070    OSUINT8      stkx;
00071    OSUINT8      parmcnt;
00072    OSUTF8CHAR*  parms[OSRTMAXERRPRM];
00073    OSUTF8CHAR*  elemName;
00074 } OSRTErrInfo;
00075 
00076 typedef struct {
00077    OSRTDList list;              /* list of errors */
00078    OSRTErrInfo reserved;        /* error info elem, used if nomem to alloc */
00079    OSRTDListNode reservedNode;  /* node placeholder for errInfo elem       */
00080 } OSRTErrInfoList;
00081 
00090 typedef struct {
00091    OSOCTET*     data;           /* pointer to start of data buffer      */
00092    OSSIZE       byteIndex;      /* byte index                           */
00093    OSSIZE       size;           /* current buffer size                  */
00094    OSINT16      bitOffset;      /* current bit offset (8 - 1)           */
00095    OSBOOL       dynamic;        /* is buffer dynamic?                   */
00096    OSBOOL       aligned;        /* is buffer byte aligned?              */
00097 } OSRTBuffer;
00098 
00099 typedef OSUINT32 OSRTFLAGS;
00100 
00107 typedef struct {
00108    OSSIZE      byteIndex;      /* byte index                           */
00109    OSINT16     bitOffset;      /* current bit offset (8 - 1)           */
00110    OSRTFLAGS   flags;          /* flag bits                            */
00111 } OSRTBufSave;
00112 
00113 
00117 typedef struct {
00118    OSSIZE byteIndex;
00119    OSINT16 bitOffset;   /*8..1*/
00120 } OSBufferIndex;
00121 
00122 
00123 /* OSRTCTXT flag mask values : bits 32 - 16 are for common flags, bits  */
00124 /* 15 - 0 are reserved for application specific flags                   */
00125 
00126 #define OSDIAG          0x80000000  /* diagnostic tracing enabled       */
00127 #define OSTRACE         0x40000000  /* tracing enabled                  */
00128 #define OSDISSTRM       0x20000000  /* disable stream encode/decode     */
00129 #define OSNOSTRMBACKOFF 0x08000000  /* stream mark/reset funcs is not used */
00130 #define OS3GMOBORIG     0x04000000  /* 3G mobile-originated (net to MS) */
00131 /*
00132 OSCONTCLOSED: Flag indicating nothing more should be encoded to the current
00133 container.  This is set when a variable length field whose encoding space is
00134 determined by the container is encoded.
00135 Used by 3GPP encoders.
00136 */
00137 #define OSCONTCLOSED    0x02000000  /* 3G container closed.             */
00138 #define OSRESERVED1     0x01000000  /* reserved                         */
00139 #define OSBUFSYSALLOC   0x00800000  /* ctxt buf allocated using sys alloc */
00140 
00141 struct OSCTXT;
00148 typedef int (*OSFreeCtxtAppInfoPtr)(struct OSCTXT* pctxt);
00149 
00156 typedef int (*OSResetCtxtAppInfoPtr)(struct OSCTXT* pctxt);
00157 
00165 typedef void (*OSFreeCtxtGlobalPtr)(struct OSCTXT* pctxt);
00166 
00167 /* Alias for __cdecl modifier; if __cdecl keyword is not supported,
00168  * redefine it as empty macro. */
00169 
00170 #if !defined(OSCDECL)
00171 #if defined(_MSC_VER) || defined(__BORLANDC__)
00172 #define OSCDECL __cdecl
00173 #else
00174 #define OSCDECL
00175 #endif
00176 #endif /* OSCDECL */
00177 
00185 typedef struct OSCTXT {          /* run-time context block               */
00186    void*         pMemHeap;       /* internal message memory heap         */
00187    OSRTBuffer    buffer;         /* data buffer                          */
00188    OSRTBufSave   savedInfo;      /* saved buffer info                    */
00189    OSRTErrInfoList errInfo;      /* run-time error info                  */
00190    OSUINT32      initCode;       /* code double word to indicate init    */
00191    OSRTFLAGS     flags;          /* flag bits                            */
00192    OSOCTET       level;          /* nesting level                        */
00193    OSOCTET       state;          /* encode/decode process state          */
00194    OSOCTET       diagLevel;      /* diagnostic trace level               */
00195    OSOCTET       lastChar;       /* last char/byte written or read       */
00196 #ifndef _NO_STREAM
00197    struct OSRTSTREAM* pStream;   /* Stream                               */
00198    struct OSRTPrintStream *pPrintStrm; /* Print Stream                   */
00199 #endif /* _NO_STREAM */
00200    OSRTDList elemNameStack;      /* element name stack                   */
00201    OSRTDList regExpCache;        /* compiled regular expression cache    */
00202 
00211    OSRTStack containerEndIndexStack;
00212 
00213    const OSOCTET* key;           /* pointer to run-time key data         */
00214    OSSIZE        keylen;         /* run-time key length                  */
00215    OSVoidPtr     pXMLInfo;       /* XML specific info                    */
00216    OSVoidPtr     pASN1Info;      /* ASN.1 specific info                  */
00217    OSVoidPtr     pLicInfo;       /* License specific info                */
00218    OSVoidPtr     pUserData;      /* User defined data                    */
00219    OSVoidPtr     pGlobalData;    /* Global constant data                 */
00220    struct OS3GPPSecParams* p3gppSec;  /* 3GPP Security parameters        */
00221    OSFreeCtxtGlobalPtr gblFreeFunc; /* Global free function              */
00222    OSVoidPtr     ssl;            /* SSL stack endpoint                   */
00223    struct OSRTDiagBitFieldList* pBitFldList; /* Bit field trace list     */
00224    OSUINT16      indent;         /* Print Stream indent                  */
00225    OSUINT16      version;        /* Protocol version                     */
00226 } OSCTXT;
00227 
00228 #define OSRT_GET_FIRST_ERROR_INFO(pctxt) \
00229 (((pctxt)->errInfo.list.head == 0) ? (OSRTErrInfo*)0 : \
00230 (OSRTErrInfo*)((pctxt)->errInfo.list.head->data))
00231 
00232 #define OSRT_GET_LAST_ERROR_INFO(pctxt) \
00233 (((pctxt)->errInfo.list.tail == 0) ? (OSRTErrInfo*)0 : \
00234 (OSRTErrInfo*)((pctxt)->errInfo.list.tail->data))
00235 
00239 #ifndef _NO_STREAM
00240 
00241 #define OSRTISSTREAM(pctxt) \
00242 ((pctxt)->pStream != 0 && !((pctxt)->flags & OSDISSTRM))
00243 
00244 #define OSRTISBUFSTREAM(pctxt) \
00245 (OSRTISSTREAM(pctxt) && (0 != ((pctxt)->pStream->flags & OSRTSTRMF_BUFFERED)))
00246 
00247 #else /* _NO_STREAM */
00248 
00249 #define OSRTISSTREAM(pctxt) FALSE
00250 #define OSRTISBUFSTREAM(pctxt) FALSE
00251 
00252 #endif /* _NO_STREAM */
00253 
00254 #define OSRTBUFCUR(pctxt)   (pctxt)->buffer.data[(pctxt)->buffer.byteIndex]
00255 #define OSRTBUFPTR(pctxt)   &(pctxt)->buffer.data[(pctxt)->buffer.byteIndex]
00256 #define OSRTBUFFER(pctxt)   (pctxt)->buffer.data
00257 #define OSRTBUFSIZE(pctxt)  (pctxt)->buffer.size
00258 
00259 #define OSRTBUFSAVE(pctxt) { \
00260 (pctxt)->savedInfo.byteIndex = (pctxt)->buffer.byteIndex; \
00261 (pctxt)->savedInfo.flags = (pctxt)->flags; }
00262 
00263 #define OSRTBUFSAVE2(pctxt,pSavedBuf) { \
00264 (pSavedBuf)->byteIndex = (pctxt)->buffer.byteIndex; \
00265 (pSavedBuf)->bitOffset = (pctxt)->buffer.bitOffset; \
00266 (pSavedBuf)->flags = (pctxt)->flags; }
00267 
00268 #define OSRTBUFRESTORE(pctxt) { \
00269 (pctxt)->buffer.byteIndex = (pctxt)->savedInfo.byteIndex; \
00270 (pctxt)->flags = (pctxt)->savedInfo.flags; }
00271 
00272 #define OSRTBUFRESTORE2(pctxt,pSavedBuf) { \
00273 (pctxt)->buffer.byteIndex = (pSavedBuf)->byteIndex; \
00274 (pctxt)->buffer.bitOffset = (pSavedBuf)->bitOffset; \
00275 (pctxt)->flags = (pSavedBuf)->flags; }
00276 
00277 #define OSRTBYTEALIGNED(pctxt) \
00278 ((pctxt)->buffer.bitOffset == 8 || (pctxt)->buffer.bitOffset == 0)
00279 
00280 /* Pointers to C Run-Time memory allocation functions */
00281 
00282 typedef void *(OSCDECL *OSMallocFunc ) (OSSIZE size);
00283 typedef void *(OSCDECL *OSReallocFunc) (void *ptr, OSSIZE size);
00284 typedef void  (OSCDECL *OSFreeFunc   ) (void *ptr);
00285 
00286 #ifdef __cplusplus
00287 extern "C" {
00288 #endif
00289 
00314 #ifndef rtxInitContext
00315 EXTERNRT int rtxInitContext (OSCTXT* pctxt);
00316 #endif
00317 
00332 EXTERNRT int rtxInitContextExt (OSCTXT* pctxt,
00333                                 OSMallocFunc malloc_func,
00334                                 OSReallocFunc realloc_func,
00335                                 OSFreeFunc free_func);
00336 
00357 EXTERNRT int rtxInitThreadContext (OSCTXT* pctxt, const OSCTXT* pSrcCtxt);
00358 
00373 EXTERNRT int rtxInitContextUsingKey
00374 (OSCTXT* pctxt, const OSOCTET* key, OSSIZE keylen);
00375 
00394 EXTERNRT int rtxInitContextBuffer
00395 (OSCTXT* pctxt, OSOCTET* bufaddr, OSSIZE bufsiz);
00396 
00420 EXTERNRT int rtxCtxtSetBufPtr
00421 (OSCTXT* pctxt, OSOCTET* bufaddr, OSSIZE bufsiz);
00422 
00434 #define rtxCtxtGetMsgPtr(pctxt) (pctxt)->buffer.data
00435 
00445 #define rtxCtxtGetMsgLen(pctxt) (pctxt)->buffer.byteIndex
00446 
00454 EXTERNRT OSSIZE rtxCtxtGetBitOffset (OSCTXT* pctxt);
00455 
00465 EXTERNRT int rtxCtxtSetBitOffset (OSCTXT* pctxt, OSSIZE offset);
00466 
00474 EXTERNRT OSSIZE rtxCtxtGetIOByteCount (OSCTXT* pctxt);
00475 
00485 EXTERNRT int rtxCheckContext (OSCTXT* pctxt);
00486 
00494 EXTERNRT void rtxFreeContext (OSCTXT* pctxt);
00495 
00505 EXTERNRT void rtxCopyContext (OSCTXT* pdest, OSCTXT* psrc);
00506 
00513 EXTERNRT void rtxCtxtSetFlag (OSCTXT* pctxt, OSUINT32 mask);
00514 
00522 EXTERNRT void rtxCtxtClearFlag (OSCTXT* pctxt, OSUINT32 mask);
00523 
00530 #define rtxCtxtTestFlag(pctxt,mask) (((pctxt)->flags & mask) != 0)
00531 
00546 EXTERNRT int rtxCtxtPushArrayElemName
00547 (OSCTXT* pctxt, const OSUTF8CHAR* elemName, OSSIZE idx);
00548 
00561 EXTERNRT int rtxCtxtPushElemName (OSCTXT* pctxt, const OSUTF8CHAR* elemName);
00562 
00577 EXTERNRT int rtxCtxtPushTypeName (OSCTXT* pctxt, const OSUTF8CHAR* typeName);
00578 
00589 EXTERNRT OSBOOL rtxCtxtPopArrayElemName (OSCTXT* pctxt);
00590 
00598 EXTERNRT const OSUTF8CHAR* rtxCtxtPopElemName (OSCTXT* pctxt);
00599 
00608 EXTERNRT const OSUTF8CHAR* rtxCtxtPopTypeName (OSCTXT* pctxt);
00609 
00617 #define rtxCtxtPeekElemName(pctxt) \
00618 (((pctxt)->elemNameStack.count > 0) ? \
00619  (const OSUTF8CHAR*)(pctxt)->elemNameStack.tail->data : (const OSUTF8CHAR*)0)
00620 
00621 
00630 EXTERNRT OSBOOL rtxCtxtContainerHasRemBits(OSCTXT* pctxt);
00631 
00640 EXTERNRT OSSIZE rtxCtxtGetContainerRemBits(OSCTXT* pctxt);
00641 
00655 EXTERNRT int rtxCtxtPushContainerBytes(OSCTXT* pctxt, OSSIZE bytes);
00656 
00670 EXTERNRT int rtxCtxtPushContainerBits(OSCTXT* pctxt, OSSIZE bits);
00671 
00672 
00682 EXTERNRT void rtxCtxtPopContainer(OSCTXT* pctxt);
00683 
00691 EXTERNRT void rtxCtxtPopAllContainers(OSCTXT* pctxt);
00692 
00693 EXTERNRT int rtxPreInitContext (OSCTXT* pctxt);
00694 EXTERNRT void rtxCtxtSetMemHeap (OSCTXT* pctxt, OSCTXT* pSrcCtxt);
00695 
00705 EXTERNRT void rtxMemHeapSetFlags (OSCTXT* pctxt, OSUINT32 flags);
00706 
00715 EXTERNRT void  rtxMemHeapClearFlags (OSCTXT* pctxt, OSUINT32 flags);
00716 
00720 #define rtxByteAlign(pctxt) \
00721 if ((pctxt)->buffer.bitOffset != 8) { \
00722 (pctxt)->buffer.byteIndex++; (pctxt)->buffer.bitOffset = 8; }
00723 
00733 EXTERNRT int rtxMarkPos (OSCTXT* pctxt, OSSIZE* ppos);
00734 
00744 EXTERNRT int rtxResetToPos (OSCTXT* pctxt, OSSIZE pos);
00745 
00759 #define rtxCtxtSetProtocolVersion(pctxt,value) (pctxt)->version = value
00760 
00761 #define rtxMarkBitPos(pctxt,ppos,pbitoff) \
00762 (*(pbitoff) = (OSUINT8) (pctxt)->buffer.bitOffset, rtxMarkPos (pctxt, ppos))
00763 
00764 #define rtxResetToBitPos(pctxt,pos,bitoff) \
00765 ((pctxt)->buffer.bitOffset = (OSUINT8) bitoff, rtxResetToPos (pctxt, pos))
00766 
00767 #ifndef _COMPACT
00768 #define RTXCTXTPUSHARRAYELEMNAME(pctxt,name,idx)   \
00769 rtxCtxtPushArrayElemName(pctxt,OSUTF8(name),idx)
00770 
00771 #define RTXCTXTPOPARRAYELEMNAME(pctxt) \
00772 rtxCtxtPopArrayElemName(pctxt)
00773 
00774 #define RTXCTXTPUSHELEMNAME(pctxt,name) \
00775 rtxCtxtPushElemName(pctxt,OSUTF8(name))
00776 
00777 #define RTXCTXTPOPELEMNAME(pctxt) \
00778 rtxCtxtPopElemName(pctxt)
00779 
00780 #define RTXCTXTPUSHTYPENAME(pctxt,name) \
00781 rtxCtxtPushTypeName(pctxt,OSUTF8(name))
00782 
00783 #define RTXCTXTPOPTYPENAME(pctxt) \
00784 rtxCtxtPopTypeName(pctxt)
00785 #else
00786 #define RTXCTXTPUSHARRAYELEMNAME(pctxt,name,idx)
00787 #define RTXCTXTPOPARRAYELEMNAME(pctxt)
00788 #define RTXCTXTPUSHELEMNAME(pctxt,name)
00789 #define RTXCTXTPOPELEMNAME(pctxt)
00790 #define RTXCTXTPUSHTYPENAME(pctxt,name)
00791 #define RTXCTXTPOPTYPENAME(pctxt)
00792 #endif
00793 
00794 #ifdef __cplusplus
00795 }
00796 #endif
00797 
00800 #endif