1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195119611971198119912001201120212031204120512061207120812091210121112121213121412151216121712181219122012211222122312241225122612271228122912301231123212331234123512361237123812391240124112421243124412451246124712481249125012511252125312541255125612571258125912601261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330133113321333133413351336133713381339134013411342134313441345134613471348134913501351135213531354135513561357135813591360136113621363136413651366136713681369137013711372137313741375137613771378137913801381138213831384138513861387138813891390139113921393139413951396139713981399140014011402140314041405140614071408140914101411141214131414141514161417141814191420142114221423142414251426142714281429143014311432143314341435143614371438143914401441144214431444144514461447144814491450145114521453145414551456145714581459146014611462146314641465146614671468146914701471147214731474147514761477147814791480148114821483148414851486148714881489149014911492149314941495149614971498149915001501150215031504150515061507150815091510151115121513151415151516151715181519152015211522152315241525152615271528152915301531153215331534153515361537153815391540154115421543154415451546154715481549155015511552155315541555155615571558155915601561156215631564156515661567156815691570157115721573157415751576157715781579158015811582158315841585158615871588158915901591159215931594159515961597159815991600160116021603160416051606160716081609161016111612161316141615161616171618161916201621162216231624162516261627162816291630163116321633163416351636163716381639164016411642164316441645164616471648164916501651165216531654165516561657165816591660166116621663166416651666166716681669167016711672167316741675167616771678167916801681168216831684168516861687168816891690169116921693169416951696169716981699170017011702170317041705170617071708170917101711171217131714171517161717171817191720172117221723172417251726172717281729173017311732173317341735173617371738173917401741174217431744174517461747174817491750175117521753175417551756175717581759176017611762176317641765 |
- /* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * Copyright 2014-2018 (c) Fraunhofer IOSB (Author: Julius Pfrommer)
- * Copyright 2014-2017 (c) Florian Palm
- * Copyright 2014-2016 (c) Sten Grüner
- * Copyright 2014 (c) Leon Urbas
- * Copyright 2015 (c) LEvertz
- * Copyright 2015 (c) Chris Iatrou
- * Copyright 2015-2016 (c) Oleksiy Vasylyev
- * Copyright 2016-2017 (c) Stefan Profanter, fortiss GmbH
- * Copyright 2016 (c) Lorenz Haas
- * Copyright 2017 (c) Mark Giraud, Fraunhofer IOSB
- * Copyright 2017 (c) Henrik Norrman
- */
- #include "ua_types_encoding_binary.h"
- #include <open62541/types_generated.h>
- #include <open62541/types_generated_handling.h>
- #include "ua_util_internal.h"
- /**
- * Type Encoding and Decoding
- * --------------------------
- * The following methods contain encoding and decoding functions for the builtin
- * data types and generic functions that operate on all types and arrays. This
- * requires the type description from a UA_DataType structure.
- *
- * Encoding Context
- * ^^^^^^^^^^^^^^^^
- * If possible, the encoding context is stored in a thread-local variable to
- * speed up encoding. If thread-local variables are not supported, the context
- * is "looped through" every method call. The ``_``-macro accesses either the
- * thread-local or the "looped through" context . */
- /* Part 6 §5.1.5: Decoders shall support at least 100 nesting levels */
- #define UA_ENCODING_MAX_RECURSION 100
- typedef struct {
- /* Pointers to the current position and the last position in the buffer */
- u8 *pos;
- const u8 *end;
- u8 **oldpos; /* Sentinel for a lower stacktrace exchanging the buffer */
- u16 depth; /* How often did we en-/decoding recurse? */
- const UA_DataTypeArray *customTypes;
- UA_exchangeEncodeBuffer exchangeBufferCallback;
- void *exchangeBufferCallbackHandle;
- } Ctx;
- typedef status
- (*encodeBinarySignature)(const void *UA_RESTRICT src, const UA_DataType *type,
- Ctx *UA_RESTRICT ctx);
- typedef status
- (*decodeBinarySignature)(void *UA_RESTRICT dst, const UA_DataType *type,
- Ctx *UA_RESTRICT ctx);
- typedef size_t
- (*calcSizeBinarySignature)(const void *UA_RESTRICT p, const UA_DataType *contenttype);
- #define ENCODE_BINARY(TYPE) static status \
- TYPE##_encodeBinary(const UA_##TYPE *UA_RESTRICT src, \
- const UA_DataType *type, Ctx *UA_RESTRICT ctx)
- #define DECODE_BINARY(TYPE) static status \
- TYPE##_decodeBinary(UA_##TYPE *UA_RESTRICT dst, \
- const UA_DataType *type, Ctx *UA_RESTRICT ctx)
- #define CALCSIZE_BINARY(TYPE) static size_t \
- TYPE##_calcSizeBinary(const UA_##TYPE *UA_RESTRICT src, \
- const UA_DataType *_)
- #define ENCODE_DIRECT(SRC, TYPE) TYPE##_encodeBinary((const UA_##TYPE*)SRC, NULL, ctx)
- #define DECODE_DIRECT(DST, TYPE) TYPE##_decodeBinary((UA_##TYPE*)DST, NULL, ctx)
- /* Jumptables for de-/encoding and computing the buffer length. The methods in
- * the decoding jumptable do not all clean up their allocated memory when an
- * error occurs. So a final _clear needs to be called before returning to the
- * user. */
- extern const encodeBinarySignature encodeBinaryJumpTable[UA_DATATYPEKINDS];
- extern const decodeBinarySignature decodeBinaryJumpTable[UA_DATATYPEKINDS];
- extern const calcSizeBinarySignature calcSizeBinaryJumpTable[UA_DATATYPEKINDS];
- /* Breaking a message up into chunks is integrated with the encoding. When the
- * end of a buffer is reached, a callback is executed that sends the current
- * buffer as a chunk and exchanges the encoding buffer "underneath" the ongoing
- * encoding. This reduces the RAM requirements and unnecessary copying. */
- /* Send the current chunk and replace the buffer */
- static status exchangeBuffer(Ctx *ctx) {
- if(!ctx->exchangeBufferCallback)
- return UA_STATUSCODE_BADENCODINGERROR;
- return ctx->exchangeBufferCallback(ctx->exchangeBufferCallbackHandle,
- &ctx->pos, &ctx->end);
- }
- /* If encoding fails, exchange the buffer and try again. */
- static status
- encodeWithExchangeBuffer(const void *ptr, const UA_DataType *type, Ctx *ctx) {
- u8 *oldpos = ctx->pos; /* Last known good position */
- ctx->oldpos = &oldpos;
- status ret = encodeBinaryJumpTable[type->typeKind](ptr, type, ctx);
- if(ret == UA_STATUSCODE_BADENCODINGLIMITSEXCEEDED && ctx->oldpos == &oldpos) {
- ctx->pos = oldpos; /* Send the position to the last known good position
- * and switch */
- ret = exchangeBuffer(ctx);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- ret = encodeBinaryJumpTable[type->typeKind](ptr, type, ctx);
- }
- return ret;
- }
- #define ENCODE_WITHEXCHANGE(VAR, TYPE) \
- encodeWithExchangeBuffer((const void*)VAR, &UA_TYPES[TYPE], ctx)
- /*****************/
- /* Integer Types */
- /*****************/
- #if !UA_BINARY_OVERLAYABLE_INTEGER
- #pragma message "Integer endianness could not be detected to be little endian. Use slow generic encoding."
- /* These en/decoding functions are only used when the architecture isn't little-endian. */
- static void
- UA_encode16(const u16 v, u8 buf[2]) {
- buf[0] = (u8)v;
- buf[1] = (u8)(v >> 8);
- }
- static void
- UA_decode16(const u8 buf[2], u16 *v) {
- *v = (u16)((u16)buf[0] + (((u16)buf[1]) << 8));
- }
- static void
- UA_encode32(const u32 v, u8 buf[4]) {
- buf[0] = (u8)v;
- buf[1] = (u8)(v >> 8);
- buf[2] = (u8)(v >> 16);
- buf[3] = (u8)(v >> 24);
- }
- static void
- UA_decode32(const u8 buf[4], u32 *v) {
- *v = (u32)((u32)buf[0] + (((u32)buf[1]) << 8) +
- (((u32)buf[2]) << 16) + (((u32)buf[3]) << 24));
- }
- static void
- UA_encode64(const u64 v, u8 buf[8]) {
- buf[0] = (u8)v;
- buf[1] = (u8)(v >> 8);
- buf[2] = (u8)(v >> 16);
- buf[3] = (u8)(v >> 24);
- buf[4] = (u8)(v >> 32);
- buf[5] = (u8)(v >> 40);
- buf[6] = (u8)(v >> 48);
- buf[7] = (u8)(v >> 56);
- }
- static void
- UA_decode64(const u8 buf[8], u64 *v) {
- *v = (u64)((u64)buf[0] + (((u64)buf[1]) << 8) +
- (((u64)buf[2]) << 16) + (((u64)buf[3]) << 24) +
- (((u64)buf[4]) << 32) + (((u64)buf[5]) << 40) +
- (((u64)buf[6]) << 48) + (((u64)buf[7]) << 56));
- }
- #endif /* !UA_BINARY_OVERLAYABLE_INTEGER */
- /* Boolean */
- /* Note that sizeof(bool) != 1 on some platforms. Overlayable integer encoding
- * is disabled in those cases. */
- ENCODE_BINARY(Boolean) {
- if(ctx->pos + 1 > ctx->end)
- return UA_STATUSCODE_BADENCODINGLIMITSEXCEEDED;
- *ctx->pos = *(const u8*)src;
- ++ctx->pos;
- return UA_STATUSCODE_GOOD;
- }
- DECODE_BINARY(Boolean) {
- if(ctx->pos + 1 > ctx->end)
- return UA_STATUSCODE_BADDECODINGERROR;
- *dst = (*ctx->pos > 0) ? true : false;
- ++ctx->pos;
- return UA_STATUSCODE_GOOD;
- }
- /* Byte */
- ENCODE_BINARY(Byte) {
- if(ctx->pos + sizeof(u8) > ctx->end)
- return UA_STATUSCODE_BADENCODINGLIMITSEXCEEDED;
- *ctx->pos = *(const u8*)src;
- ++ctx->pos;
- return UA_STATUSCODE_GOOD;
- }
- DECODE_BINARY(Byte) {
- if(ctx->pos + sizeof(u8) > ctx->end)
- return UA_STATUSCODE_BADDECODINGERROR;
- *dst = *ctx->pos;
- ++ctx->pos;
- return UA_STATUSCODE_GOOD;
- }
- /* UInt16 */
- ENCODE_BINARY(UInt16) {
- if(ctx->pos + sizeof(u16) > ctx->end)
- return UA_STATUSCODE_BADENCODINGLIMITSEXCEEDED;
- #if UA_BINARY_OVERLAYABLE_INTEGER
- memcpy(ctx->pos, src, sizeof(u16));
- #else
- UA_encode16(*src, ctx->pos);
- #endif
- ctx->pos += 2;
- return UA_STATUSCODE_GOOD;
- }
- DECODE_BINARY(UInt16) {
- if(ctx->pos + sizeof(u16) > ctx->end)
- return UA_STATUSCODE_BADDECODINGERROR;
- #if UA_BINARY_OVERLAYABLE_INTEGER
- memcpy(dst, ctx->pos, sizeof(u16));
- #else
- UA_decode16(ctx->pos, dst);
- #endif
- ctx->pos += 2;
- return UA_STATUSCODE_GOOD;
- }
- /* UInt32 */
- ENCODE_BINARY(UInt32) {
- if(ctx->pos + sizeof(u32) > ctx->end)
- return UA_STATUSCODE_BADENCODINGLIMITSEXCEEDED;
- #if UA_BINARY_OVERLAYABLE_INTEGER
- memcpy(ctx->pos, src, sizeof(u32));
- #else
- UA_encode32(*src, ctx->pos);
- #endif
- ctx->pos += 4;
- return UA_STATUSCODE_GOOD;
- }
- DECODE_BINARY(UInt32) {
- if(ctx->pos + sizeof(u32) > ctx->end)
- return UA_STATUSCODE_BADDECODINGERROR;
- #if UA_BINARY_OVERLAYABLE_INTEGER
- memcpy(dst, ctx->pos, sizeof(u32));
- #else
- UA_decode32(ctx->pos, dst);
- #endif
- ctx->pos += 4;
- return UA_STATUSCODE_GOOD;
- }
- /* UInt64 */
- ENCODE_BINARY(UInt64) {
- if(ctx->pos + sizeof(u64) > ctx->end)
- return UA_STATUSCODE_BADENCODINGLIMITSEXCEEDED;
- #if UA_BINARY_OVERLAYABLE_INTEGER
- memcpy(ctx->pos, src, sizeof(u64));
- #else
- UA_encode64(*src, ctx->pos);
- #endif
- ctx->pos += 8;
- return UA_STATUSCODE_GOOD;
- }
- DECODE_BINARY(UInt64) {
- if(ctx->pos + sizeof(u64) > ctx->end)
- return UA_STATUSCODE_BADDECODINGERROR;
- #if UA_BINARY_OVERLAYABLE_INTEGER
- memcpy(dst, ctx->pos, sizeof(u64));
- #else
- UA_decode64(ctx->pos, dst);
- #endif
- ctx->pos += 8;
- return UA_STATUSCODE_GOOD;
- }
- /************************/
- /* Floating Point Types */
- /************************/
- /* Can we reuse the integer encoding mechanism by casting floating point
- * values? */
- #if (UA_FLOAT_IEEE754 == 1) && (UA_LITTLE_ENDIAN == UA_FLOAT_LITTLE_ENDIAN)
- # define Float_encodeBinary UInt32_encodeBinary
- # define Float_decodeBinary UInt32_decodeBinary
- # define Double_encodeBinary UInt64_encodeBinary
- # define Double_decodeBinary UInt64_decodeBinary
- #else
- #include <math.h>
- #pragma message "No native IEEE 754 format detected. Use slow generic encoding."
- /* Handling of IEEE754 floating point values was taken from Beej's Guide to
- * Network Programming (http://beej.us/guide/bgnet/) and enhanced to cover the
- * edge cases +/-0, +/-inf and nan. */
- static uint64_t
- pack754(long double f, unsigned bits, unsigned expbits) {
- unsigned significandbits = bits - expbits - 1;
- long double fnorm;
- long long sign;
- if(f < 0) { sign = 1; fnorm = -f; }
- else { sign = 0; fnorm = f; }
- int shift = 0;
- while(fnorm >= 2.0) { fnorm /= 2.0; ++shift; }
- while(fnorm < 1.0) { fnorm *= 2.0; --shift; }
- fnorm = fnorm - 1.0;
- long long significand = (long long)(fnorm * ((float)(1LL<<significandbits) + 0.5f));
- long long exponent = shift + ((1<<(expbits-1)) - 1);
- return (uint64_t)((sign<<(bits-1)) | (exponent<<(bits-expbits-1)) | significand);
- }
- static long double
- unpack754(uint64_t i, unsigned bits, unsigned expbits) {
- unsigned significandbits = bits - expbits - 1;
- long double result = (long double)(i&(uint64_t)((1LL<<significandbits)-1));
- result /= (1LL<<significandbits);
- result += 1.0f;
- unsigned bias = (unsigned)(1<<(expbits-1)) - 1;
- long long shift = (long long)((i>>significandbits) & (uint64_t)((1LL<<expbits)-1)) - bias;
- while(shift > 0) { result *= 2.0; --shift; }
- while(shift < 0) { result /= 2.0; ++shift; }
- result *= ((i>>(bits-1))&1)? -1.0: 1.0;
- return result;
- }
- /* Float */
- #define FLOAT_NAN 0xffc00000
- #define FLOAT_INF 0x7f800000
- #define FLOAT_NEG_INF 0xff800000
- #define FLOAT_NEG_ZERO 0x80000000
- ENCODE_BINARY(Float) {
- UA_Float f = *src;
- u32 encoded;
- /* cppcheck-suppress duplicateExpression */
- if(f != f) encoded = FLOAT_NAN;
- else if(f == 0.0f) encoded = signbit(f) ? FLOAT_NEG_ZERO : 0;
- else if(f/f != f/f) encoded = f > 0 ? FLOAT_INF : FLOAT_NEG_INF;
- else encoded = (u32)pack754(f, 32, 8);
- return ENCODE_DIRECT(&encoded, UInt32);
- }
- DECODE_BINARY(Float) {
- u32 decoded;
- status ret = DECODE_DIRECT(&decoded, UInt32);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- if(decoded == 0) *dst = 0.0f;
- else if(decoded == FLOAT_NEG_ZERO) *dst = -0.0f;
- else if(decoded == FLOAT_INF) *dst = INFINITY;
- else if(decoded == FLOAT_NEG_INF) *dst = -INFINITY;
- else if((decoded >= 0x7f800001 && decoded <= 0x7fffffff) ||
- (decoded >= 0xff800001)) *dst = NAN;
- else *dst = (UA_Float)unpack754(decoded, 32, 8);
- return UA_STATUSCODE_GOOD;
- }
- /* Double */
- #define DOUBLE_NAN 0xfff8000000000000L
- #define DOUBLE_INF 0x7ff0000000000000L
- #define DOUBLE_NEG_INF 0xfff0000000000000L
- #define DOUBLE_NEG_ZERO 0x8000000000000000L
- ENCODE_BINARY(Double) {
- UA_Double d = *src;
- u64 encoded;
- /* cppcheck-suppress duplicateExpression */
- if(d != d) encoded = DOUBLE_NAN;
- else if(d == 0.0) encoded = signbit(d) ? DOUBLE_NEG_ZERO : 0;
- else if(d/d != d/d) encoded = d > 0 ? DOUBLE_INF : DOUBLE_NEG_INF;
- else encoded = pack754(d, 64, 11);
- return ENCODE_DIRECT(&encoded, UInt64);
- }
- DECODE_BINARY(Double) {
- u64 decoded;
- status ret = DECODE_DIRECT(&decoded, UInt64);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- if(decoded == 0) *dst = 0.0;
- else if(decoded == DOUBLE_NEG_ZERO) *dst = -0.0;
- else if(decoded == DOUBLE_INF) *dst = INFINITY;
- else if(decoded == DOUBLE_NEG_INF) *dst = -INFINITY;
- else if((decoded >= 0x7ff0000000000001L && decoded <= 0x7fffffffffffffffL) ||
- (decoded >= 0xfff0000000000001L)) *dst = NAN;
- else *dst = (UA_Double)unpack754(decoded, 64, 11);
- return UA_STATUSCODE_GOOD;
- }
- #endif
- /******************/
- /* Array Handling */
- /******************/
- static status
- Array_encodeBinaryOverlayable(uintptr_t ptr, size_t length,
- size_t elementMemSize, Ctx *ctx) {
- /* Store the number of already encoded elements */
- size_t finished = 0;
- /* Loop as long as more elements remain than fit into the chunk */
- while(ctx->end < ctx->pos + (elementMemSize * (length-finished))) {
- size_t possible = ((uintptr_t)ctx->end - (uintptr_t)ctx->pos) / (sizeof(u8) * elementMemSize);
- size_t possibleMem = possible * elementMemSize;
- memcpy(ctx->pos, (void*)ptr, possibleMem);
- ctx->pos += possibleMem;
- ptr += possibleMem;
- finished += possible;
- status ret = exchangeBuffer(ctx);
- ctx->oldpos = NULL; /* Set the sentinel so that no upper stack frame
- * with a saved pos attempts to exchange from an
- * invalid position in the old buffer. */
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- }
- /* Encode the remaining elements */
- memcpy(ctx->pos, (void*)ptr, elementMemSize * (length-finished));
- ctx->pos += elementMemSize * (length-finished);
- return UA_STATUSCODE_GOOD;
- }
- static status
- Array_encodeBinaryComplex(uintptr_t ptr, size_t length,
- const UA_DataType *type, Ctx *ctx) {
- /* Encode every element */
- for(size_t i = 0; i < length; ++i) {
- status ret = encodeWithExchangeBuffer((const void*)ptr, type, ctx);
- ptr += type->memSize;
- if(ret != UA_STATUSCODE_GOOD)
- return ret; /* Unrecoverable fail */
- }
- return UA_STATUSCODE_GOOD;
- }
- static status
- Array_encodeBinary(const void *src, size_t length,
- const UA_DataType *type, Ctx *ctx) {
- /* Check and convert the array length to int32 */
- i32 signed_length = -1;
- if(length > UA_INT32_MAX)
- return UA_STATUSCODE_BADINTERNALERROR;
- if(length > 0)
- signed_length = (i32)length;
- else if(src == UA_EMPTY_ARRAY_SENTINEL)
- signed_length = 0;
- /* Encode the array length */
- status ret = ENCODE_WITHEXCHANGE(&signed_length, UA_TYPES_INT32);
- /* Quit early? */
- if(ret != UA_STATUSCODE_GOOD || length == 0)
- return ret;
- /* Encode the content */
- if(!type->overlayable)
- return Array_encodeBinaryComplex((uintptr_t)src, length, type, ctx);
- return Array_encodeBinaryOverlayable((uintptr_t)src, length, type->memSize, ctx);
- }
- static status
- Array_decodeBinary(void *UA_RESTRICT *UA_RESTRICT dst, size_t *out_length,
- const UA_DataType *type, Ctx *ctx) {
- /* Decode the length */
- i32 signed_length;
- status ret = DECODE_DIRECT(&signed_length, UInt32); /* Int32 */
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- /* Return early for empty arrays */
- if(signed_length <= 0) {
- *out_length = 0;
- if(signed_length < 0)
- *dst = NULL;
- else
- *dst = UA_EMPTY_ARRAY_SENTINEL;
- return UA_STATUSCODE_GOOD;
- }
- /* Filter out arrays that can obviously not be decoded, because the message
- * is too small for the array length. This prevents the allocation of very
- * long arrays for bogus messages.*/
- size_t length = (size_t)signed_length;
- if(ctx->pos + ((type->memSize * length) / 32) > ctx->end)
- return UA_STATUSCODE_BADDECODINGERROR;
- /* Allocate memory */
- *dst = UA_calloc(length, type->memSize);
- if(!*dst)
- return UA_STATUSCODE_BADOUTOFMEMORY;
- if(type->overlayable) {
- /* memcpy overlayable array */
- if(ctx->end < ctx->pos + (type->memSize * length)) {
- UA_free(*dst);
- *dst = NULL;
- return UA_STATUSCODE_BADDECODINGERROR;
- }
- memcpy(*dst, ctx->pos, type->memSize * length);
- ctx->pos += type->memSize * length;
- } else {
- /* Decode array members */
- uintptr_t ptr = (uintptr_t)*dst;
- for(size_t i = 0; i < length; ++i) {
- ret = decodeBinaryJumpTable[type->typeKind]((void*)ptr, type, ctx);
- if(ret != UA_STATUSCODE_GOOD) {
- /* +1 because last element is also already initialized */
- UA_Array_delete(*dst, i+1, type);
- *dst = NULL;
- return ret;
- }
- ptr += type->memSize;
- }
- }
- *out_length = length;
- return UA_STATUSCODE_GOOD;
- }
- /*****************/
- /* Builtin Types */
- /*****************/
- ENCODE_BINARY(String) {
- return Array_encodeBinary(src->data, src->length, &UA_TYPES[UA_TYPES_BYTE], ctx);
- }
- DECODE_BINARY(String) {
- return Array_decodeBinary((void**)&dst->data, &dst->length, &UA_TYPES[UA_TYPES_BYTE], ctx);
- }
- /* Guid */
- ENCODE_BINARY(Guid) {
- status ret = UA_STATUSCODE_GOOD;
- ret |= ENCODE_DIRECT(&src->data1, UInt32);
- ret |= ENCODE_DIRECT(&src->data2, UInt16);
- ret |= ENCODE_DIRECT(&src->data3, UInt16);
- if(ctx->pos + (8*sizeof(u8)) > ctx->end)
- return UA_STATUSCODE_BADENCODINGLIMITSEXCEEDED;
- memcpy(ctx->pos, src->data4, 8*sizeof(u8));
- ctx->pos += 8;
- return ret;
- }
- DECODE_BINARY(Guid) {
- status ret = UA_STATUSCODE_GOOD;
- ret |= DECODE_DIRECT(&dst->data1, UInt32);
- ret |= DECODE_DIRECT(&dst->data2, UInt16);
- ret |= DECODE_DIRECT(&dst->data3, UInt16);
- if(ctx->pos + (8*sizeof(u8)) > ctx->end)
- return UA_STATUSCODE_BADDECODINGERROR;
- memcpy(dst->data4, ctx->pos, 8*sizeof(u8));
- ctx->pos += 8;
- return ret;
- }
- /* NodeId */
- #define UA_NODEIDTYPE_NUMERIC_TWOBYTE 0u
- #define UA_NODEIDTYPE_NUMERIC_FOURBYTE 1u
- #define UA_NODEIDTYPE_NUMERIC_COMPLETE 2u
- #define UA_EXPANDEDNODEID_SERVERINDEX_FLAG 0x40u
- #define UA_EXPANDEDNODEID_NAMESPACEURI_FLAG 0x80u
- /* For ExpandedNodeId, we prefill the encoding mask. */
- static status
- NodeId_encodeBinaryWithEncodingMask(UA_NodeId const *src, u8 encoding, Ctx *ctx) {
- status ret = UA_STATUSCODE_GOOD;
- switch(src->identifierType) {
- case UA_NODEIDTYPE_NUMERIC:
- if(src->identifier.numeric > UA_UINT16_MAX || src->namespaceIndex > UA_BYTE_MAX) {
- encoding |= UA_NODEIDTYPE_NUMERIC_COMPLETE;
- ret |= ENCODE_DIRECT(&encoding, Byte);
- ret |= ENCODE_DIRECT(&src->namespaceIndex, UInt16);
- ret |= ENCODE_DIRECT(&src->identifier.numeric, UInt32);
- } else if(src->identifier.numeric > UA_BYTE_MAX || src->namespaceIndex > 0) {
- encoding |= UA_NODEIDTYPE_NUMERIC_FOURBYTE;
- ret |= ENCODE_DIRECT(&encoding, Byte);
- u8 nsindex = (u8)src->namespaceIndex;
- ret |= ENCODE_DIRECT(&nsindex, Byte);
- u16 identifier16 = (u16)src->identifier.numeric;
- ret |= ENCODE_DIRECT(&identifier16, UInt16);
- } else {
- encoding |= UA_NODEIDTYPE_NUMERIC_TWOBYTE;
- ret |= ENCODE_DIRECT(&encoding, Byte);
- u8 identifier8 = (u8)src->identifier.numeric;
- ret |= ENCODE_DIRECT(&identifier8, Byte);
- }
- break;
- case UA_NODEIDTYPE_STRING:encoding |= (u8)UA_NODEIDTYPE_STRING;
- ret |= ENCODE_DIRECT(&encoding, Byte);
- ret |= ENCODE_DIRECT(&src->namespaceIndex, UInt16);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- ret = ENCODE_DIRECT(&src->identifier.string, String);
- break;
- case UA_NODEIDTYPE_GUID:encoding |= (u8)UA_NODEIDTYPE_GUID;
- ret |= ENCODE_DIRECT(&encoding, Byte);
- ret |= ENCODE_DIRECT(&src->namespaceIndex, UInt16);
- ret |= ENCODE_DIRECT(&src->identifier.guid, Guid);
- break;
- case UA_NODEIDTYPE_BYTESTRING:encoding |= (u8)UA_NODEIDTYPE_BYTESTRING;
- ret |= ENCODE_DIRECT(&encoding, Byte);
- ret |= ENCODE_DIRECT(&src->namespaceIndex, UInt16);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- ret = ENCODE_DIRECT(&src->identifier.byteString, String); /* ByteString */
- break;
- default:
- return UA_STATUSCODE_BADINTERNALERROR;
- }
- return ret;
- }
- ENCODE_BINARY(NodeId) {
- return NodeId_encodeBinaryWithEncodingMask(src, 0, ctx);
- }
- DECODE_BINARY(NodeId) {
- u8 dstByte = 0, encodingByte = 0;
- u16 dstUInt16 = 0;
- /* Decode the encoding bitfield */
- status ret = DECODE_DIRECT(&encodingByte, Byte);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- /* Filter out the bits used only for ExpandedNodeIds */
- encodingByte &= (u8)~(u8)(UA_EXPANDEDNODEID_SERVERINDEX_FLAG |
- UA_EXPANDEDNODEID_NAMESPACEURI_FLAG);
- /* Decode the namespace and identifier */
- switch(encodingByte) {
- case UA_NODEIDTYPE_NUMERIC_TWOBYTE:
- dst->identifierType = UA_NODEIDTYPE_NUMERIC;
- ret = DECODE_DIRECT(&dstByte, Byte);
- dst->identifier.numeric = dstByte;
- dst->namespaceIndex = 0;
- break;
- case UA_NODEIDTYPE_NUMERIC_FOURBYTE:
- dst->identifierType = UA_NODEIDTYPE_NUMERIC;
- ret |= DECODE_DIRECT(&dstByte, Byte);
- dst->namespaceIndex = dstByte;
- ret |= DECODE_DIRECT(&dstUInt16, UInt16);
- dst->identifier.numeric = dstUInt16;
- break;
- case UA_NODEIDTYPE_NUMERIC_COMPLETE:
- dst->identifierType = UA_NODEIDTYPE_NUMERIC;
- ret |= DECODE_DIRECT(&dst->namespaceIndex, UInt16);
- ret |= DECODE_DIRECT(&dst->identifier.numeric, UInt32);
- break;
- case UA_NODEIDTYPE_STRING:
- dst->identifierType = UA_NODEIDTYPE_STRING;
- ret |= DECODE_DIRECT(&dst->namespaceIndex, UInt16);
- ret |= DECODE_DIRECT(&dst->identifier.string, String);
- break;
- case UA_NODEIDTYPE_GUID:
- dst->identifierType = UA_NODEIDTYPE_GUID;
- ret |= DECODE_DIRECT(&dst->namespaceIndex, UInt16);
- ret |= DECODE_DIRECT(&dst->identifier.guid, Guid);
- break;
- case UA_NODEIDTYPE_BYTESTRING:
- dst->identifierType = UA_NODEIDTYPE_BYTESTRING;
- ret |= DECODE_DIRECT(&dst->namespaceIndex, UInt16);
- ret |= DECODE_DIRECT(&dst->identifier.byteString, String); /* ByteString */
- break;
- default:
- ret |= UA_STATUSCODE_BADINTERNALERROR;
- break;
- }
- return ret;
- }
- /* ExpandedNodeId */
- ENCODE_BINARY(ExpandedNodeId) {
- /* Set up the encoding mask */
- u8 encoding = 0;
- if((void*)src->namespaceUri.data > UA_EMPTY_ARRAY_SENTINEL)
- encoding |= UA_EXPANDEDNODEID_NAMESPACEURI_FLAG;
- if(src->serverIndex > 0)
- encoding |= UA_EXPANDEDNODEID_SERVERINDEX_FLAG;
- /* Encode the NodeId */
- status ret = NodeId_encodeBinaryWithEncodingMask(&src->nodeId, encoding, ctx);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- /* Encode the namespace. */
- if((void*)src->namespaceUri.data > UA_EMPTY_ARRAY_SENTINEL) {
- ret = ENCODE_DIRECT(&src->namespaceUri, String);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- }
- /* Encode the serverIndex */
- if(src->serverIndex > 0)
- ret = ENCODE_WITHEXCHANGE(&src->serverIndex, UA_TYPES_UINT32);
- return ret;
- }
- DECODE_BINARY(ExpandedNodeId) {
- /* Decode the encoding mask */
- if(ctx->pos >= ctx->end)
- return UA_STATUSCODE_BADDECODINGERROR;
- u8 encoding = *ctx->pos;
- /* Decode the NodeId */
- status ret = DECODE_DIRECT(&dst->nodeId, NodeId);
- /* Decode the NamespaceUri */
- if(encoding & UA_EXPANDEDNODEID_NAMESPACEURI_FLAG) {
- dst->nodeId.namespaceIndex = 0;
- ret |= DECODE_DIRECT(&dst->namespaceUri, String);
- }
- /* Decode the ServerIndex */
- if(encoding & UA_EXPANDEDNODEID_SERVERINDEX_FLAG)
- ret |= DECODE_DIRECT(&dst->serverIndex, UInt32);
- return ret;
- }
- /* QualifiedName */
- ENCODE_BINARY(QualifiedName) {
- status ret = ENCODE_DIRECT(&src->namespaceIndex, UInt16);
- ret |= ENCODE_DIRECT(&src->name, String);
- return ret;
- }
- DECODE_BINARY(QualifiedName) {
- status ret = DECODE_DIRECT(&dst->namespaceIndex, UInt16);
- ret |= DECODE_DIRECT(&dst->name, String);
- return ret;
- }
- /* LocalizedText */
- #define UA_LOCALIZEDTEXT_ENCODINGMASKTYPE_LOCALE 0x01u
- #define UA_LOCALIZEDTEXT_ENCODINGMASKTYPE_TEXT 0x02u
- ENCODE_BINARY(LocalizedText) {
- /* Set up the encoding mask */
- u8 encoding = 0;
- if(src->locale.data)
- encoding |= UA_LOCALIZEDTEXT_ENCODINGMASKTYPE_LOCALE;
- if(src->text.data)
- encoding |= UA_LOCALIZEDTEXT_ENCODINGMASKTYPE_TEXT;
- /* Encode the encoding byte */
- status ret = ENCODE_DIRECT(&encoding, Byte);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- /* Encode the strings */
- if(encoding & UA_LOCALIZEDTEXT_ENCODINGMASKTYPE_LOCALE)
- ret |= ENCODE_DIRECT(&src->locale, String);
- if(encoding & UA_LOCALIZEDTEXT_ENCODINGMASKTYPE_TEXT)
- ret |= ENCODE_DIRECT(&src->text, String);
- return ret;
- }
- DECODE_BINARY(LocalizedText) {
- /* Decode the encoding mask */
- u8 encoding = 0;
- status ret = DECODE_DIRECT(&encoding, Byte);
- /* Decode the content */
- if(encoding & UA_LOCALIZEDTEXT_ENCODINGMASKTYPE_LOCALE)
- ret |= DECODE_DIRECT(&dst->locale, String);
- if(encoding & UA_LOCALIZEDTEXT_ENCODINGMASKTYPE_TEXT)
- ret |= DECODE_DIRECT(&dst->text, String);
- return ret;
- }
- /* The binary encoding has a different nodeid from the data type. So it is not
- * possible to reuse UA_findDataType */
- static const UA_DataType *
- UA_findDataTypeByBinaryInternal(const UA_NodeId *typeId, Ctx *ctx) {
- /* We only store a numeric identifier for the encoding nodeid of data types */
- if(typeId->identifierType != UA_NODEIDTYPE_NUMERIC)
- return NULL;
- /* Always look in built-in types first
- * (may contain data types from all namespaces) */
- for(size_t i = 0; i < UA_TYPES_COUNT; ++i) {
- if(UA_TYPES[i].binaryEncodingId == typeId->identifier.numeric &&
- UA_TYPES[i].typeId.namespaceIndex == typeId->namespaceIndex)
- return &UA_TYPES[i];
- }
- const UA_DataTypeArray *customTypes = ctx->customTypes;
- while(customTypes) {
- for(size_t i = 0; i < customTypes->typesSize; ++i) {
- if(customTypes->types[i].binaryEncodingId == typeId->identifier.numeric &&
- customTypes->types[i].typeId.namespaceIndex == typeId->namespaceIndex)
- return &customTypes->types[i];
- }
- customTypes = customTypes->next;
- }
- return NULL;
- }
- const UA_DataType *
- UA_findDataTypeByBinary(const UA_NodeId *typeId) {
- Ctx ctx;
- ctx.customTypes = NULL;
- return UA_findDataTypeByBinaryInternal(typeId, &ctx);
- }
- /* ExtensionObject */
- ENCODE_BINARY(ExtensionObject) {
- u8 encoding = (u8)src->encoding;
- /* No content or already encoded content. */
- if(encoding <= UA_EXTENSIONOBJECT_ENCODED_XML) {
- status ret = ENCODE_DIRECT(&src->content.encoded.typeId, NodeId);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- ret = ENCODE_WITHEXCHANGE(&encoding, UA_TYPES_BYTE);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- switch(src->encoding) {
- case UA_EXTENSIONOBJECT_ENCODED_NOBODY:
- break;
- case UA_EXTENSIONOBJECT_ENCODED_BYTESTRING:
- case UA_EXTENSIONOBJECT_ENCODED_XML:
- ret = ENCODE_DIRECT(&src->content.encoded.body, String); /* ByteString */
- break;
- default:
- ret = UA_STATUSCODE_BADINTERNALERROR;
- }
- return ret;
- }
- /* Cannot encode with no data or no type description */
- if(!src->content.decoded.type || !src->content.decoded.data)
- return UA_STATUSCODE_BADENCODINGERROR;
- /* Write the NodeId for the binary encoded type. The NodeId is always
- * numeric, so no buffer replacement is taking place. */
- UA_NodeId typeId = src->content.decoded.type->typeId;
- if(typeId.identifierType != UA_NODEIDTYPE_NUMERIC)
- return UA_STATUSCODE_BADENCODINGERROR;
- typeId.identifier.numeric = src->content.decoded.type->binaryEncodingId;
- status ret = ENCODE_DIRECT(&typeId, NodeId);
- /* Write the encoding byte */
- encoding = UA_EXTENSIONOBJECT_ENCODED_BYTESTRING;
- ret |= ENCODE_DIRECT(&encoding, Byte);
- /* Compute the content length */
- const UA_DataType *contentType = src->content.decoded.type;
- size_t len = UA_calcSizeBinary(src->content.decoded.data, contentType);
- /* Encode the content length */
- if(len > UA_INT32_MAX)
- return UA_STATUSCODE_BADENCODINGERROR;
- i32 signed_len = (i32)len;
- ret |= ENCODE_DIRECT(&signed_len, UInt32); /* Int32 */
- /* Return early upon failures (no buffer exchange until here) */
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- /* Encode the content */
- return encodeWithExchangeBuffer(src->content.decoded.data, contentType, ctx);
- }
- static status
- ExtensionObject_decodeBinaryContent(UA_ExtensionObject *dst, const UA_NodeId *typeId, Ctx *ctx) {
- /* Lookup the datatype */
- const UA_DataType *type = UA_findDataTypeByBinaryInternal(typeId, ctx);
- /* Unknown type, just take the binary content */
- if(!type) {
- dst->encoding = UA_EXTENSIONOBJECT_ENCODED_BYTESTRING;
- UA_NodeId_copy(typeId, &dst->content.encoded.typeId);
- return DECODE_DIRECT(&dst->content.encoded.body, String); /* ByteString */
- }
- /* Allocate memory */
- dst->content.decoded.data = UA_new(type);
- if(!dst->content.decoded.data)
- return UA_STATUSCODE_BADOUTOFMEMORY;
- /* Jump over the length field (TODO: check if the decoded length matches) */
- ctx->pos += 4;
- /* Decode */
- dst->encoding = UA_EXTENSIONOBJECT_DECODED;
- dst->content.decoded.type = type;
- return decodeBinaryJumpTable[type->typeKind](dst->content.decoded.data, type, ctx);
- }
- DECODE_BINARY(ExtensionObject) {
- u8 encoding = 0;
- UA_NodeId binTypeId; /* Can contain a string nodeid. But no corresponding
- * type is then found in open62541. We only store
- * numerical nodeids of the binary encoding identifier.
- * The extenionobject will be decoded to contain a
- * binary blob. */
- UA_NodeId_init(&binTypeId);
- status ret = UA_STATUSCODE_GOOD;
- ret |= DECODE_DIRECT(&binTypeId, NodeId);
- ret |= DECODE_DIRECT(&encoding, Byte);
- if(ret != UA_STATUSCODE_GOOD) {
- UA_NodeId_clear(&binTypeId);
- return ret;
- }
- switch(encoding) {
- case UA_EXTENSIONOBJECT_ENCODED_BYTESTRING:
- ret = ExtensionObject_decodeBinaryContent(dst, &binTypeId, ctx);
- UA_NodeId_deleteMembers(&binTypeId);
- break;
- case UA_EXTENSIONOBJECT_ENCODED_NOBODY:
- dst->encoding = (UA_ExtensionObjectEncoding)encoding;
- dst->content.encoded.typeId = binTypeId; /* move to dst */
- dst->content.encoded.body = UA_BYTESTRING_NULL;
- break;
- case UA_EXTENSIONOBJECT_ENCODED_XML:
- dst->encoding = (UA_ExtensionObjectEncoding)encoding;
- dst->content.encoded.typeId = binTypeId; /* move to dst */
- ret = DECODE_DIRECT(&dst->content.encoded.body, String); /* ByteString */
- if(ret != UA_STATUSCODE_GOOD)
- UA_NodeId_clear(&dst->content.encoded.typeId);
- break;
- default:
- UA_NodeId_clear(&binTypeId);
- ret = UA_STATUSCODE_BADDECODINGERROR;
- break;
- }
- return ret;
- }
- /* Variant */
- static status
- Variant_encodeBinaryWrapExtensionObject(const UA_Variant *src,
- const UA_Boolean isArray, Ctx *ctx) {
- /* Default to 1 for a scalar. */
- size_t length = 1;
- /* Encode the array length if required */
- status ret = UA_STATUSCODE_GOOD;
- if(isArray) {
- if(src->arrayLength > UA_INT32_MAX)
- return UA_STATUSCODE_BADENCODINGERROR;
- length = src->arrayLength;
- i32 encodedLength = (i32)src->arrayLength;
- ret = ENCODE_DIRECT(&encodedLength, UInt32); /* Int32 */
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- }
- /* Set up the ExtensionObject */
- UA_ExtensionObject eo;
- UA_ExtensionObject_init(&eo);
- eo.encoding = UA_EXTENSIONOBJECT_DECODED;
- eo.content.decoded.type = src->type;
- const u16 memSize = src->type->memSize;
- uintptr_t ptr = (uintptr_t)src->data;
- /* Iterate over the array */
- for(size_t i = 0; i < length && ret == UA_STATUSCODE_GOOD; ++i) {
- eo.content.decoded.data = (void*)ptr;
- ret = encodeWithExchangeBuffer(&eo, &UA_TYPES[UA_TYPES_EXTENSIONOBJECT], ctx);
- ptr += memSize;
- }
- return ret;
- }
- enum UA_VARIANT_ENCODINGMASKTYPE {
- UA_VARIANT_ENCODINGMASKTYPE_TYPEID_MASK = 0x3Fu, /* bits 0:5 */
- UA_VARIANT_ENCODINGMASKTYPE_DIMENSIONS = (u8)(0x01u << 6u), /* bit 6 */
- UA_VARIANT_ENCODINGMASKTYPE_ARRAY = (u8)(0x01u << 7u) /* bit 7 */
- };
- ENCODE_BINARY(Variant) {
- /* Quit early for the empty variant */
- u8 encoding = 0;
- if(!src->type)
- return ENCODE_DIRECT(&encoding, Byte);
- /* Set the content type in the encoding mask */
- const UA_Boolean isBuiltin = (src->type->typeKind <= UA_DATATYPEKIND_DIAGNOSTICINFO);
- const UA_Boolean isEnum = (src->type->typeKind == UA_DATATYPEKIND_ENUM);
- if(isBuiltin)
- encoding = (u8)(encoding | (u8)((u8)UA_VARIANT_ENCODINGMASKTYPE_TYPEID_MASK & (u8)(src->type->typeKind + 1u)));
- else if(isEnum)
- encoding = (u8)(encoding | (u8)((u8)UA_VARIANT_ENCODINGMASKTYPE_TYPEID_MASK & (u8)(UA_TYPES_INT32 + 1u)));
- else
- encoding = (u8)(encoding | (u8)((u8)UA_VARIANT_ENCODINGMASKTYPE_TYPEID_MASK & (u8)(UA_TYPES_EXTENSIONOBJECT + 1u)));
- /* Set the array type in the encoding mask */
- const UA_Boolean isArray = src->arrayLength > 0 || src->data <= UA_EMPTY_ARRAY_SENTINEL;
- const UA_Boolean hasDimensions = isArray && src->arrayDimensionsSize > 0;
- if(isArray) {
- encoding |= (u8)UA_VARIANT_ENCODINGMASKTYPE_ARRAY;
- if(hasDimensions)
- encoding |= (u8)UA_VARIANT_ENCODINGMASKTYPE_DIMENSIONS;
- }
- /* Encode the encoding byte */
- status ret = ENCODE_DIRECT(&encoding, Byte);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- /* Encode the content */
- if(!isBuiltin && !isEnum)
- ret = Variant_encodeBinaryWrapExtensionObject(src, isArray, ctx);
- else if(!isArray)
- ret = encodeWithExchangeBuffer(src->data, src->type, ctx);
- else
- ret = Array_encodeBinary(src->data, src->arrayLength, src->type, ctx);
- /* Encode the array dimensions */
- if(hasDimensions && ret == UA_STATUSCODE_GOOD)
- ret = Array_encodeBinary(src->arrayDimensions, src->arrayDimensionsSize,
- &UA_TYPES[UA_TYPES_INT32], ctx);
- return ret;
- }
- static status
- Variant_decodeBinaryUnwrapExtensionObject(UA_Variant *dst, Ctx *ctx) {
- /* Save the position in the ByteString. If unwrapping is not possible, start
- * from here to decode a normal ExtensionObject. */
- u8 *old_pos = ctx->pos;
- /* Decode the DataType */
- UA_NodeId typeId;
- UA_NodeId_init(&typeId);
- status ret = DECODE_DIRECT(&typeId, NodeId);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- /* Decode the EncodingByte */
- u8 encoding;
- ret = DECODE_DIRECT(&encoding, Byte);
- if(ret != UA_STATUSCODE_GOOD) {
- UA_NodeId_clear(&typeId);
- return ret;
- }
- /* Search for the datatype. Default to ExtensionObject. */
- if(encoding == UA_EXTENSIONOBJECT_ENCODED_BYTESTRING &&
- (dst->type = UA_findDataTypeByBinaryInternal(&typeId, ctx)) != NULL) {
- /* Jump over the length field (TODO: check if length matches) */
- ctx->pos += 4;
- } else {
- /* Reset and decode as ExtensionObject */
- dst->type = &UA_TYPES[UA_TYPES_EXTENSIONOBJECT];
- ctx->pos = old_pos;
- UA_NodeId_clear(&typeId);
- }
- /* Allocate memory */
- dst->data = UA_new(dst->type);
- if(!dst->data)
- return UA_STATUSCODE_BADOUTOFMEMORY;
- /* Decode the content */
- return decodeBinaryJumpTable[dst->type->typeKind](dst->data, dst->type, ctx);
- }
- /* The resulting variant always has the storagetype UA_VARIANT_DATA. */
- DECODE_BINARY(Variant) {
- /* Decode the encoding byte */
- u8 encodingByte;
- status ret = DECODE_DIRECT(&encodingByte, Byte);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- /* Return early for an empty variant (was already _inited) */
- if(encodingByte == 0)
- return UA_STATUSCODE_GOOD;
- /* Does the variant contain an array? */
- const UA_Boolean isArray = (encodingByte & (u8)UA_VARIANT_ENCODINGMASKTYPE_ARRAY) > 0;
- /* Get the datatype of the content. The type must be a builtin data type.
- * All not-builtin types are wrapped in an ExtensionObject. The "type kind"
- * for types up to DiagnsticInfo equals to the index in the encoding
- * byte. */
- size_t typeKind = (size_t)((encodingByte & (u8)UA_VARIANT_ENCODINGMASKTYPE_TYPEID_MASK) - 1);
- if(typeKind > UA_DATATYPEKIND_DIAGNOSTICINFO)
- return UA_STATUSCODE_BADDECODINGERROR;
- /* A variant cannot contain a variant. But it can contain an array of
- * variants */
- if(typeKind == UA_DATATYPEKIND_VARIANT && !isArray)
- return UA_STATUSCODE_BADDECODINGERROR;
- /* Check the recursion limit */
- if(ctx->depth > UA_ENCODING_MAX_RECURSION)
- return UA_STATUSCODE_BADENCODINGERROR;
- ctx->depth++;
- /* Decode the content */
- dst->type = &UA_TYPES[typeKind];
- if(isArray) {
- ret = Array_decodeBinary(&dst->data, &dst->arrayLength, dst->type, ctx);
- } else if(typeKind != UA_DATATYPEKIND_EXTENSIONOBJECT) {
- dst->data = UA_new(dst->type);
- if(!dst->data)
- return UA_STATUSCODE_BADOUTOFMEMORY;
- ret = decodeBinaryJumpTable[typeKind](dst->data, dst->type, ctx);
- } else {
- ret = Variant_decodeBinaryUnwrapExtensionObject(dst, ctx);
- }
- /* Decode array dimensions */
- if(isArray && (encodingByte & (u8)UA_VARIANT_ENCODINGMASKTYPE_DIMENSIONS) > 0)
- ret |= Array_decodeBinary((void**)&dst->arrayDimensions, &dst->arrayDimensionsSize,
- &UA_TYPES[UA_TYPES_INT32], ctx);
- ctx->depth--;
- return ret;
- }
- /* DataValue */
- ENCODE_BINARY(DataValue) {
- /* Set up the encoding mask */
- u8 encodingMask = src->hasValue;
- encodingMask |= (u8)(src->hasStatus << 1u);
- encodingMask |= (u8)(src->hasSourceTimestamp << 2u);
- encodingMask |= (u8)(src->hasServerTimestamp << 3u);
- encodingMask |= (u8)(src->hasSourcePicoseconds << 4u);
- encodingMask |= (u8)(src->hasServerPicoseconds << 5u);
- /* Encode the encoding byte */
- status ret = ENCODE_DIRECT(&encodingMask, Byte);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- /* Encode the variant. */
- if(src->hasValue) {
- ret = ENCODE_DIRECT(&src->value, Variant);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- }
- if(src->hasStatus)
- ret |= ENCODE_WITHEXCHANGE(&src->status, UA_TYPES_STATUSCODE);
- if(src->hasSourceTimestamp)
- ret |= ENCODE_WITHEXCHANGE(&src->sourceTimestamp, UA_TYPES_DATETIME);
- if(src->hasSourcePicoseconds)
- ret |= ENCODE_WITHEXCHANGE(&src->sourcePicoseconds, UA_TYPES_UINT16);
- if(src->hasServerTimestamp)
- ret |= ENCODE_WITHEXCHANGE(&src->serverTimestamp, UA_TYPES_DATETIME);
- if(src->hasServerPicoseconds)
- ret |= ENCODE_WITHEXCHANGE(&src->serverPicoseconds, UA_TYPES_UINT16);
- return ret;
- }
- #define MAX_PICO_SECONDS 9999
- DECODE_BINARY(DataValue) {
- /* Decode the encoding mask */
- u8 encodingMask;
- status ret = DECODE_DIRECT(&encodingMask, Byte);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- /* Check the recursion limit */
- if(ctx->depth > UA_ENCODING_MAX_RECURSION)
- return UA_STATUSCODE_BADENCODINGERROR;
- ctx->depth++;
- /* Decode the content */
- if(encodingMask & 0x01u) {
- dst->hasValue = true;
- ret |= DECODE_DIRECT(&dst->value, Variant);
- }
- if(encodingMask & 0x02u) {
- dst->hasStatus = true;
- ret |= DECODE_DIRECT(&dst->status, UInt32); /* StatusCode */
- }
- if(encodingMask & 0x04u) {
- dst->hasSourceTimestamp = true;
- ret |= DECODE_DIRECT(&dst->sourceTimestamp, UInt64); /* DateTime */
- }
- if(encodingMask & 0x10u) {
- dst->hasSourcePicoseconds = true;
- ret |= DECODE_DIRECT(&dst->sourcePicoseconds, UInt16);
- if(dst->sourcePicoseconds > MAX_PICO_SECONDS)
- dst->sourcePicoseconds = MAX_PICO_SECONDS;
- }
- if(encodingMask & 0x08u) {
- dst->hasServerTimestamp = true;
- ret |= DECODE_DIRECT(&dst->serverTimestamp, UInt64); /* DateTime */
- }
- if(encodingMask & 0x20u) {
- dst->hasServerPicoseconds = true;
- ret |= DECODE_DIRECT(&dst->serverPicoseconds, UInt16);
- if(dst->serverPicoseconds > MAX_PICO_SECONDS)
- dst->serverPicoseconds = MAX_PICO_SECONDS;
- }
- ctx->depth--;
- return ret;
- }
- /* DiagnosticInfo */
- ENCODE_BINARY(DiagnosticInfo) {
- /* Set up the encoding mask */
- u8 encodingMask = src->hasSymbolicId;
- encodingMask |= (u8)(src->hasNamespaceUri << 1u);
- encodingMask |= (u8)(src->hasLocalizedText << 2u);
- encodingMask |= (u8)(src->hasLocale << 3u);
- encodingMask |= (u8)(src->hasAdditionalInfo << 4u);
- encodingMask |= (u8)(src->hasInnerDiagnosticInfo << 5u);
- /* Encode the numeric content */
- status ret = ENCODE_DIRECT(&encodingMask, Byte);
- if(src->hasSymbolicId)
- ret |= ENCODE_DIRECT(&src->symbolicId, UInt32); /* Int32 */
- if(src->hasNamespaceUri)
- ret |= ENCODE_DIRECT(&src->namespaceUri, UInt32); /* Int32 */
- if(src->hasLocalizedText)
- ret |= ENCODE_DIRECT(&src->localizedText, UInt32); /* Int32 */
- if(src->hasLocale)
- ret |= ENCODE_DIRECT(&src->locale, UInt32); /* Int32 */
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- /* Encode the additional info */
- if(src->hasAdditionalInfo) {
- ret = ENCODE_DIRECT(&src->additionalInfo, String);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- }
- /* Encode the inner status code */
- if(src->hasInnerStatusCode) {
- ret = ENCODE_WITHEXCHANGE(&src->innerStatusCode, UA_TYPES_UINT32);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- }
- /* Encode the inner diagnostic info */
- if(src->hasInnerDiagnosticInfo)
- // innerDiagnosticInfo is already a pointer, so don't use the & reference here
- ret = ENCODE_WITHEXCHANGE(src->innerDiagnosticInfo,
- UA_TYPES_DIAGNOSTICINFO);
- return ret;
- }
- DECODE_BINARY(DiagnosticInfo) {
- /* Decode the encoding mask */
- u8 encodingMask;
- status ret = DECODE_DIRECT(&encodingMask, Byte);
- if(ret != UA_STATUSCODE_GOOD)
- return ret;
- /* Decode the content */
- if(encodingMask & 0x01u) {
- dst->hasSymbolicId = true;
- ret |= DECODE_DIRECT(&dst->symbolicId, UInt32); /* Int32 */
- }
- if(encodingMask & 0x02u) {
- dst->hasNamespaceUri = true;
- ret |= DECODE_DIRECT(&dst->namespaceUri, UInt32); /* Int32 */
- }
- if(encodingMask & 0x04u) {
- dst->hasLocalizedText = true;
- ret |= DECODE_DIRECT(&dst->localizedText, UInt32); /* Int32 */
- }
- if(encodingMask & 0x08u) {
- dst->hasLocale = true;
- ret |= DECODE_DIRECT(&dst->locale, UInt32); /* Int32 */
- }
- if(encodingMask & 0x10u) {
- dst->hasAdditionalInfo = true;
- ret |= DECODE_DIRECT(&dst->additionalInfo, String);
- }
- if(encodingMask & 0x20u) {
- dst->hasInnerStatusCode = true;
- ret |= DECODE_DIRECT(&dst->innerStatusCode, UInt32); /* StatusCode */
- }
- if(encodingMask & 0x40u) {
- /* innerDiagnosticInfo is allocated on the heap */
- dst->innerDiagnosticInfo = (UA_DiagnosticInfo*)
- UA_calloc(1, sizeof(UA_DiagnosticInfo));
- if(!dst->innerDiagnosticInfo)
- return UA_STATUSCODE_BADOUTOFMEMORY;
- dst->hasInnerDiagnosticInfo = true;
- /* Check the recursion limit */
- if(ctx->depth > UA_ENCODING_MAX_RECURSION)
- return UA_STATUSCODE_BADENCODINGERROR;
- ctx->depth++;
- ret |= DECODE_DIRECT(dst->innerDiagnosticInfo, DiagnosticInfo);
- ctx->depth--;
- }
- return ret;
- }
- static status
- encodeBinaryStruct(const void *src, const UA_DataType *type, Ctx *ctx) {
- /* Check the recursion limit */
- if(ctx->depth > UA_ENCODING_MAX_RECURSION)
- return UA_STATUSCODE_BADENCODINGERROR;
- ctx->depth++;
- uintptr_t ptr = (uintptr_t)src;
- status ret = UA_STATUSCODE_GOOD;
- u8 membersSize = type->membersSize;
- const UA_DataType *typelists[2] = { UA_TYPES, &type[-type->typeIndex] };
- /* Loop over members */
- for(size_t i = 0; i < membersSize; ++i) {
- const UA_DataTypeMember *m = &type->members[i];
- const UA_DataType *mt = &typelists[!m->namespaceZero][m->memberTypeIndex];
- ptr += m->padding;
- /* Array. Buffer-exchange is done inside Array_encodeBinary if required. */
- if(m->isArray) {
- const size_t length = *((const size_t*)ptr);
- ptr += sizeof(size_t);
- ret = Array_encodeBinary(*(void *UA_RESTRICT const *)ptr, length, mt, ctx);
- ptr += sizeof(void*);
- continue;
- }
- /* Scalar */
- ret = encodeWithExchangeBuffer((const void*)ptr, mt, ctx);
- ptr += mt->memSize;
- }
- ctx->depth--;
- return ret;
- }
- static status
- encodeBinaryNotImplemented(const void *src, const UA_DataType *type, Ctx *ctx) {
- (void)src, (void)type, (void)ctx;
- return UA_STATUSCODE_BADNOTIMPLEMENTED;
- }
- /********************/
- /* Structured Types */
- /********************/
- const encodeBinarySignature encodeBinaryJumpTable[UA_DATATYPEKINDS] = {
- (encodeBinarySignature)Boolean_encodeBinary,
- (encodeBinarySignature)Byte_encodeBinary, /* SByte */
- (encodeBinarySignature)Byte_encodeBinary,
- (encodeBinarySignature)UInt16_encodeBinary, /* Int16 */
- (encodeBinarySignature)UInt16_encodeBinary,
- (encodeBinarySignature)UInt32_encodeBinary, /* Int32 */
- (encodeBinarySignature)UInt32_encodeBinary,
- (encodeBinarySignature)UInt64_encodeBinary, /* Int64 */
- (encodeBinarySignature)UInt64_encodeBinary,
- (encodeBinarySignature)Float_encodeBinary,
- (encodeBinarySignature)Double_encodeBinary,
- (encodeBinarySignature)String_encodeBinary,
- (encodeBinarySignature)UInt64_encodeBinary, /* DateTime */
- (encodeBinarySignature)Guid_encodeBinary,
- (encodeBinarySignature)String_encodeBinary, /* ByteString */
- (encodeBinarySignature)String_encodeBinary, /* XmlElement */
- (encodeBinarySignature)NodeId_encodeBinary,
- (encodeBinarySignature)ExpandedNodeId_encodeBinary,
- (encodeBinarySignature)UInt32_encodeBinary, /* StatusCode */
- (encodeBinarySignature)QualifiedName_encodeBinary,
- (encodeBinarySignature)LocalizedText_encodeBinary,
- (encodeBinarySignature)ExtensionObject_encodeBinary,
- (encodeBinarySignature)DataValue_encodeBinary,
- (encodeBinarySignature)Variant_encodeBinary,
- (encodeBinarySignature)DiagnosticInfo_encodeBinary,
- (encodeBinarySignature)encodeBinaryNotImplemented, /* Decimal */
- (encodeBinarySignature)UInt32_encodeBinary, /* Enumeration */
- (encodeBinarySignature)encodeBinaryStruct,
- (encodeBinarySignature)encodeBinaryNotImplemented, /* Structure with Optional Fields */
- (encodeBinarySignature)encodeBinaryStruct, /* Union */
- (encodeBinarySignature)encodeBinaryStruct /* BitfieldCluster */
- };
- status
- UA_encodeBinary(const void *src, const UA_DataType *type,
- u8 **bufPos, const u8 **bufEnd,
- UA_exchangeEncodeBuffer exchangeCallback, void *exchangeHandle) {
- /* Set up the context */
- Ctx ctx;
- ctx.pos = *bufPos;
- ctx.end = *bufEnd;
- ctx.depth = 0;
- ctx.exchangeBufferCallback = exchangeCallback;
- ctx.exchangeBufferCallbackHandle = exchangeHandle;
- if(!ctx.pos)
- return UA_STATUSCODE_BADINVALIDARGUMENT;
- /* Encode */
- status ret = encodeWithExchangeBuffer(src, type, &ctx);
- /* Set the new buffer position for the output. Beware that the buffer might
- * have been exchanged internally. */
- *bufPos = ctx.pos;
- *bufEnd = ctx.end;
- return ret;
- }
- static status
- decodeBinaryNotImplemented(void *dst, const UA_DataType *type, Ctx *ctx) {
- (void)dst, (void)type, (void)ctx;
- return UA_STATUSCODE_BADNOTIMPLEMENTED;
- }
- static status
- decodeBinaryStructure(void *dst, const UA_DataType *type, Ctx *ctx) {
- /* Check the recursion limit */
- if(ctx->depth > UA_ENCODING_MAX_RECURSION)
- return UA_STATUSCODE_BADENCODINGERROR;
- ctx->depth++;
- uintptr_t ptr = (uintptr_t)dst;
- status ret = UA_STATUSCODE_GOOD;
- u8 membersSize = type->membersSize;
- const UA_DataType *typelists[2] = { UA_TYPES, &type[-type->typeIndex] };
- /* Loop over members */
- for(size_t i = 0; i < membersSize && ret == UA_STATUSCODE_GOOD; ++i) {
- const UA_DataTypeMember *m = &type->members[i];
- const UA_DataType *mt = &typelists[!m->namespaceZero][m->memberTypeIndex];
- ptr += m->padding;
- /* Array */
- if(m->isArray) {
- size_t *length = (size_t*)ptr;
- ptr += sizeof(size_t);
- ret = Array_decodeBinary((void *UA_RESTRICT *UA_RESTRICT)ptr, length, mt , ctx);
- ptr += sizeof(void*);
- continue;
- }
- /* Scalar */
- ret = decodeBinaryJumpTable[mt->typeKind]((void *UA_RESTRICT)ptr, mt, ctx);
- ptr += mt->memSize;
- }
- ctx->depth--;
- return ret;
- }
- const decodeBinarySignature decodeBinaryJumpTable[UA_DATATYPEKINDS] = {
- (decodeBinarySignature)Boolean_decodeBinary,
- (decodeBinarySignature)Byte_decodeBinary, /* SByte */
- (decodeBinarySignature)Byte_decodeBinary,
- (decodeBinarySignature)UInt16_decodeBinary, /* Int16 */
- (decodeBinarySignature)UInt16_decodeBinary,
- (decodeBinarySignature)UInt32_decodeBinary, /* Int32 */
- (decodeBinarySignature)UInt32_decodeBinary,
- (decodeBinarySignature)UInt64_decodeBinary, /* Int64 */
- (decodeBinarySignature)UInt64_decodeBinary,
- (decodeBinarySignature)Float_decodeBinary,
- (decodeBinarySignature)Double_decodeBinary,
- (decodeBinarySignature)String_decodeBinary,
- (decodeBinarySignature)UInt64_decodeBinary, /* DateTime */
- (decodeBinarySignature)Guid_decodeBinary,
- (decodeBinarySignature)String_decodeBinary, /* ByteString */
- (decodeBinarySignature)String_decodeBinary, /* XmlElement */
- (decodeBinarySignature)NodeId_decodeBinary,
- (decodeBinarySignature)ExpandedNodeId_decodeBinary,
- (decodeBinarySignature)UInt32_decodeBinary, /* StatusCode */
- (decodeBinarySignature)QualifiedName_decodeBinary,
- (decodeBinarySignature)LocalizedText_decodeBinary,
- (decodeBinarySignature)ExtensionObject_decodeBinary,
- (decodeBinarySignature)DataValue_decodeBinary,
- (decodeBinarySignature)Variant_decodeBinary,
- (decodeBinarySignature)DiagnosticInfo_decodeBinary,
- (decodeBinarySignature)decodeBinaryNotImplemented, /* Decimal */
- (decodeBinarySignature)UInt32_decodeBinary, /* Enumeration */
- (decodeBinarySignature)decodeBinaryStructure,
- (decodeBinarySignature)decodeBinaryNotImplemented, /* Structure with optional fields */
- (decodeBinarySignature)decodeBinaryNotImplemented, /* Union */
- (decodeBinarySignature)decodeBinaryNotImplemented /* BitfieldCluster */
- };
- status
- UA_decodeBinary(const UA_ByteString *src, size_t *offset, void *dst,
- const UA_DataType *type, const UA_DataTypeArray *customTypes) {
- /* Set up the context */
- Ctx ctx;
- ctx.pos = &src->data[*offset];
- ctx.end = &src->data[src->length];
- ctx.depth = 0;
- ctx.customTypes = customTypes;
- /* Decode */
- memset(dst, 0, type->memSize); /* Initialize the value */
- status ret = decodeBinaryJumpTable[type->typeKind](dst, type, &ctx);
- if(ret == UA_STATUSCODE_GOOD) {
- /* Set the new offset */
- *offset = (size_t)(ctx.pos - src->data) / sizeof(u8);
- } else {
- /* Clean up */
- UA_clear(dst, type);
- memset(dst, 0, type->memSize);
- }
- return ret;
- }
- /**
- * Compute the Message Size
- * ------------------------
- * The following methods are used to compute the length of a datum in binary
- * encoding. */
- static size_t
- Array_calcSizeBinary(const void *src, size_t length, const UA_DataType *type) {
- size_t s = 4; /* length */
- if(type->overlayable) {
- s += type->memSize * length;
- return s;
- }
- uintptr_t ptr = (uintptr_t)src;
- for(size_t i = 0; i < length; ++i) {
- s += calcSizeBinaryJumpTable[type->typeKind]((const void*)ptr, type);
- ptr += type->memSize;
- }
- return s;
- }
- static size_t calcSizeBinary1(const void *_, const UA_DataType *__) { (void)_, (void)__; return 1; }
- static size_t calcSizeBinary2(const void *_, const UA_DataType *__) { (void)_, (void)__; return 2; }
- static size_t calcSizeBinary4(const void *_, const UA_DataType *__) { (void)_, (void)__; return 4; }
- static size_t calcSizeBinary8(const void *_, const UA_DataType *__) { (void)_, (void)__; return 8; }
- CALCSIZE_BINARY(String) { return 4 + src->length; }
- CALCSIZE_BINARY(Guid) { return 16; }
- CALCSIZE_BINARY(NodeId) {
- size_t s = 1; /* Encoding byte */
- switch(src->identifierType) {
- case UA_NODEIDTYPE_NUMERIC:
- if(src->identifier.numeric > UA_UINT16_MAX || src->namespaceIndex > UA_BYTE_MAX) {
- s += 6;
- } else if(src->identifier.numeric > UA_BYTE_MAX || src->namespaceIndex > 0) {
- s += 3;
- } else {
- s += 1;
- }
- break;
- case UA_NODEIDTYPE_BYTESTRING:
- case UA_NODEIDTYPE_STRING:
- s += 2;
- s += String_calcSizeBinary(&src->identifier.string, NULL);
- break;
- case UA_NODEIDTYPE_GUID:
- s += 18;
- break;
- default:
- return 0;
- }
- return s;
- }
- CALCSIZE_BINARY(ExpandedNodeId) {
- size_t s = NodeId_calcSizeBinary(&src->nodeId, NULL);
- if(src->namespaceUri.length > 0)
- s += String_calcSizeBinary(&src->namespaceUri, NULL);
- if(src->serverIndex > 0)
- s += 4;
- return s;
- }
- CALCSIZE_BINARY(QualifiedName) {
- return 2 + String_calcSizeBinary(&src->name, NULL);
- }
- CALCSIZE_BINARY(LocalizedText) {
- size_t s = 1; /* Encoding byte */
- if(src->locale.data)
- s += String_calcSizeBinary(&src->locale, NULL);
- if(src->text.data)
- s += String_calcSizeBinary(&src->text, NULL);
- return s;
- }
- CALCSIZE_BINARY(ExtensionObject) {
- size_t s = 1; /* Encoding byte */
- /* Encoded content */
- if(src->encoding <= UA_EXTENSIONOBJECT_ENCODED_XML) {
- s += NodeId_calcSizeBinary(&src->content.encoded.typeId, NULL);
- switch(src->encoding) {
- case UA_EXTENSIONOBJECT_ENCODED_NOBODY:
- break;
- case UA_EXTENSIONOBJECT_ENCODED_BYTESTRING:
- case UA_EXTENSIONOBJECT_ENCODED_XML:
- s += String_calcSizeBinary(&src->content.encoded.body, NULL);
- break;
- default:
- return 0;
- }
- return s;
- }
- /* Decoded content */
- if(!src->content.decoded.type || !src->content.decoded.data)
- return 0;
- if(src->content.decoded.type->typeId.identifierType != UA_NODEIDTYPE_NUMERIC)
- return 0;
- s += NodeId_calcSizeBinary(&src->content.decoded.type->typeId, NULL); /* Type encoding length */
- s += 4; /* Encoding length field */
- const UA_DataType *type = src->content.decoded.type;
- s += calcSizeBinaryJumpTable[type->typeKind](src->content.decoded.data, type); /* Encoding length */
- return s;
- }
- CALCSIZE_BINARY(Variant) {
- size_t s = 1; /* Encoding byte */
- if(!src->type)
- return s;
- const UA_Boolean isArray = src->arrayLength > 0 || src->data <= UA_EMPTY_ARRAY_SENTINEL;
- if(isArray)
- s += Array_calcSizeBinary(src->data, src->arrayLength, src->type);
- else
- s += calcSizeBinaryJumpTable[src->type->typeKind](src->data, src->type);
- const UA_Boolean isBuiltin = (src->type->typeKind <= UA_DATATYPEKIND_DIAGNOSTICINFO);
- const UA_Boolean isEnum = (src->type->typeKind == UA_DATATYPEKIND_ENUM);
- if(!isBuiltin && !isEnum) {
- /* The type is wrapped inside an extensionobject */
- /* (NodeId + encoding byte + extension object length) * array length */
- size_t length = isArray ? src->arrayLength : 1;
- s += (NodeId_calcSizeBinary(&src->type->typeId, NULL) + 1 + 4) * length;
- }
- const UA_Boolean hasDimensions = isArray && src->arrayDimensionsSize > 0;
- if(hasDimensions)
- s += Array_calcSizeBinary(src->arrayDimensions, src->arrayDimensionsSize,
- &UA_TYPES[UA_TYPES_INT32]);
- return s;
- }
- CALCSIZE_BINARY(DataValue) {
- size_t s = 1; /* Encoding byte */
- if(src->hasValue)
- s += Variant_calcSizeBinary(&src->value, NULL);
- if(src->hasStatus)
- s += 4;
- if(src->hasSourceTimestamp)
- s += 8;
- if(src->hasSourcePicoseconds)
- s += 2;
- if(src->hasServerTimestamp)
- s += 8;
- if(src->hasServerPicoseconds)
- s += 2;
- return s;
- }
- CALCSIZE_BINARY(DiagnosticInfo) {
- size_t s = 1; /* Encoding byte */
- if(src->hasSymbolicId)
- s += 4;
- if(src->hasNamespaceUri)
- s += 4;
- if(src->hasLocalizedText)
- s += 4;
- if(src->hasLocale)
- s += 4;
- if(src->hasAdditionalInfo)
- s += String_calcSizeBinary(&src->additionalInfo, NULL);
- if(src->hasInnerStatusCode)
- s += 4;
- if(src->hasInnerDiagnosticInfo)
- s += DiagnosticInfo_calcSizeBinary(src->innerDiagnosticInfo, NULL);
- return s;
- }
- static size_t
- calcSizeBinaryStructure(const void *p, const UA_DataType *type) {
- size_t s = 0;
- uintptr_t ptr = (uintptr_t)p;
- u8 membersSize = type->membersSize;
- const UA_DataType *typelists[2] = { UA_TYPES, &type[-type->typeIndex] };
- /* Loop over members */
- for(size_t i = 0; i < membersSize; ++i) {
- const UA_DataTypeMember *member = &type->members[i];
- const UA_DataType *membertype = &typelists[!member->namespaceZero][member->memberTypeIndex];
- ptr += member->padding;
- /* Array */
- if(member->isArray) {
- const size_t length = *((const size_t*)ptr);
- ptr += sizeof(size_t);
- s += Array_calcSizeBinary(*(void *UA_RESTRICT const *)ptr, length, membertype);
- ptr += sizeof(void*);
- continue;
- }
- /* Scalar */
- s += calcSizeBinaryJumpTable[membertype->typeKind]((const void*)ptr, membertype);
- ptr += membertype->memSize;
- }
- return s;
- }
- static size_t
- calcSizeBinaryNotImplemented(const void *p, const UA_DataType *type) {
- (void)p, (void)type;
- return 0;
- }
- const calcSizeBinarySignature calcSizeBinaryJumpTable[UA_DATATYPEKINDS] = {
- (calcSizeBinarySignature)calcSizeBinary1, /* Boolean */
- (calcSizeBinarySignature)calcSizeBinary1, /* SByte */
- (calcSizeBinarySignature)calcSizeBinary1, /* Byte */
- (calcSizeBinarySignature)calcSizeBinary2, /* Int16 */
- (calcSizeBinarySignature)calcSizeBinary2, /* UInt16 */
- (calcSizeBinarySignature)calcSizeBinary4, /* Int32 */
- (calcSizeBinarySignature)calcSizeBinary4, /* UInt32 */
- (calcSizeBinarySignature)calcSizeBinary8, /* Int64 */
- (calcSizeBinarySignature)calcSizeBinary8, /* UInt64 */
- (calcSizeBinarySignature)calcSizeBinary4, /* Float */
- (calcSizeBinarySignature)calcSizeBinary8, /* Double */
- (calcSizeBinarySignature)String_calcSizeBinary,
- (calcSizeBinarySignature)calcSizeBinary8, /* DateTime */
- (calcSizeBinarySignature)Guid_calcSizeBinary,
- (calcSizeBinarySignature)String_calcSizeBinary, /* ByteString */
- (calcSizeBinarySignature)String_calcSizeBinary, /* XmlElement */
- (calcSizeBinarySignature)NodeId_calcSizeBinary,
- (calcSizeBinarySignature)ExpandedNodeId_calcSizeBinary,
- (calcSizeBinarySignature)calcSizeBinary4, /* StatusCode */
- (calcSizeBinarySignature)QualifiedName_calcSizeBinary,
- (calcSizeBinarySignature)LocalizedText_calcSizeBinary,
- (calcSizeBinarySignature)ExtensionObject_calcSizeBinary,
- (calcSizeBinarySignature)DataValue_calcSizeBinary,
- (calcSizeBinarySignature)Variant_calcSizeBinary,
- (calcSizeBinarySignature)DiagnosticInfo_calcSizeBinary,
- (calcSizeBinarySignature)calcSizeBinaryNotImplemented, /* Decimal */
- (calcSizeBinarySignature)calcSizeBinary4, /* Enumeration */
- (calcSizeBinarySignature)calcSizeBinaryStructure,
- (calcSizeBinarySignature)calcSizeBinaryNotImplemented, /* Structure with Optional Fields */
- (calcSizeBinarySignature)calcSizeBinaryNotImplemented, /* Union */
- (calcSizeBinarySignature)calcSizeBinaryNotImplemented /* BitfieldCluster */
- };
- size_t
- UA_calcSizeBinary(const void *p, const UA_DataType *type) {
- return calcSizeBinaryJumpTable[type->typeKind](p, type);
- }
|