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- code format update

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v1.6_develop
Michael Zillgith 1 month ago
parent 3c3a5d9fd8
commit 80a01bd935
1 changed files with 142 additions and 97 deletions
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239
src/mms/iso_mms/client/mms_client_files.c
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@ -21,18 +21,18 @@
* See COPYING file for the complete license text.
*/
#include "byte_buffer.h"
#include "hal_thread.h"
#include "libiec61850_platform_includes.h"
#include "stack_config.h"
#include "mms_common.h"
#include "mms_client_connection.h"
#include "hal_thread.h"
#include "byte_buffer.h"
#include "mms_common.h"
#include "stack_config.h"
#include "mms_client_internal.h"
#include "ber_encoder.h"
#include "ber_decode.h"
#include "ber_encoder.h"
#include "ber_integer.h"
#include "conversions.h"
#include "mms_client_internal.h"
#if (MMS_OBTAIN_FILE_SERVICE == 1)
@ -43,8 +43,10 @@ getFreeFrsm(MmsConnection connection)
MmsFileReadStateMachine* freeFrsm = NULL;
for (i = 0; i < CONFIG_MMS_MAX_NUMBER_OF_OPEN_FILES_PER_CONNECTION; i++) {
if (connection->frsms[i].fileHandle == NULL) {
for (i = 0; i < CONFIG_MMS_MAX_NUMBER_OF_OPEN_FILES_PER_CONNECTION; i++)
{
if (connection->frsms[i].fileHandle == NULL)
{
freeFrsm = &(connection->frsms[i]);
break;
}
@ -60,9 +62,12 @@ getFrsm(MmsConnection connection, int32_t frsmId)
MmsFileReadStateMachine* frsm = NULL;
for (i = 0; i < CONFIG_MMS_MAX_NUMBER_OF_OPEN_FILES_PER_CONNECTION; i++) {
if (connection->frsms[i].fileHandle != NULL) {
if (connection->frsms[i].frsmId == frsmId) {
for (i = 0; i < CONFIG_MMS_MAX_NUMBER_OF_OPEN_FILES_PER_CONNECTION; i++)
{
if (connection->frsms[i].fileHandle != NULL)
{
if (connection->frsms[i].frsmId == frsmId)
{
frsm = &(connection->frsms[i]);
break;
}
@ -82,24 +87,25 @@ getNextFrsmId(MmsConnection connection)
}
void
mmsClient_handleFileOpenRequest(
MmsConnection connection,
uint8_t* buffer, int bufPos, int maxBufPos,
uint32_t invokeId, ByteBuffer* response)
mmsClient_handleFileOpenRequest(MmsConnection connection, uint8_t* buffer, int bufPos, int maxBufPos, uint32_t invokeId,
ByteBuffer* response)
{
char filename[256];
bool hasFileName = false;
uint32_t filePosition = 0;
while (bufPos < maxBufPos) {
while (bufPos < maxBufPos)
{
uint8_t tag = buffer[bufPos++];
int length;
bufPos = BerDecoder_decodeLength(buffer, &length, bufPos, maxBufPos);
if (bufPos < 0) goto exit_reject_invalid_pdu;
if (bufPos < 0)
goto exit_reject_invalid_pdu;
switch(tag) {
switch (tag)
{
case 0xa0: /* filename */
if (!mmsMsg_parseFileName(filename, buffer, &bufPos, bufPos + length, invokeId, response))
@ -123,24 +129,29 @@ mmsClient_handleFileOpenRequest(
}
}
if (hasFileName) {
if (hasFileName)
{
if (mmsMsg_isFilenameSave(filename) == false) {
if (mmsMsg_isFilenameSave(filename) == false)
{
/* potential attack */
if (DEBUG_MMS_CLIENT)
printf("MMS_CLIENT: client provided unsave filename -> rejected\n");
mmsMsg_createServiceErrorPdu(invokeId, response, MMS_ERROR_FILE_FILE_NON_EXISTENT);
mmsMsg_createServiceErrorPdu(invokeId, response, MMS_ERROR_FILE_FILE_NON_EXISTENT);
}
else {
else
{
MmsFileReadStateMachine* frsm = getFreeFrsm(connection);
if (frsm != NULL) {
if (frsm != NULL)
{
MmsOutstandingCall obtainFileCall = mmsClient_getMatchingObtainFileRequest(connection, filename);
if (obtainFileCall) {
if (obtainFileCall)
{
if (DEBUG_MMS_CLIENT)
printf("MMS_CLIENT: file open is matching obtain file request for file %s\n", filename);
@ -148,21 +159,22 @@ mmsClient_handleFileOpenRequest(
obtainFileCall->timeout = Hal_getTimeInMs() + connection->requestTimeout;
}
FileHandle fileHandle = mmsMsg_openFile(MmsConnection_getFilestoreBasepath(connection), filename, false);
FileHandle fileHandle =
mmsMsg_openFile(MmsConnection_getFilestoreBasepath(connection), filename, false);
if (fileHandle != NULL) {
if (fileHandle != NULL)
{
frsm->fileHandle = fileHandle;
frsm->readPosition = filePosition;
frsm->frsmId = getNextFrsmId(connection);
frsm->obtainRequest = obtainFileCall;
mmsMsg_createFileOpenResponse(MmsConnection_getFilestoreBasepath(connection),
invokeId, response, filename, frsm);
mmsMsg_createFileOpenResponse(MmsConnection_getFilestoreBasepath(connection), invokeId, response,
filename, frsm);
}
else
mmsMsg_createServiceErrorPdu(invokeId, response, MMS_ERROR_FILE_FILE_NON_EXISTENT);
}
else
mmsMsg_createServiceErrorPdu(invokeId, response, MMS_ERROR_RESOURCE_OTHER);
@ -182,11 +194,8 @@ exit_reject_invalid_pdu:
}
void
mmsClient_handleFileReadRequest(
MmsConnection connection,
uint8_t* buffer, int bufPos, int maxBufPos,
uint32_t invokeId,
ByteBuffer* response)
mmsClient_handleFileReadRequest(MmsConnection connection, uint8_t* buffer, int bufPos, int maxBufPos, uint32_t invokeId,
ByteBuffer* response)
{
int32_t frsmId = BerDecoder_decodeInt32(buffer, maxBufPos - bufPos, bufPos);
@ -195,7 +204,8 @@ mmsClient_handleFileReadRequest(
MmsFileReadStateMachine* frsm = getFrsm(connection, frsmId);
if (frsm) {
if (frsm)
{
if (frsm->obtainRequest)
frsm->obtainRequest->timeout = Hal_getTimeInMs() + connection->requestTimeout;
@ -211,21 +221,20 @@ mmsClient_handleFileReadRequest(
}
void
mmsClient_handleFileCloseRequest(
MmsConnection connection,
uint8_t* buffer, int bufPos, int maxBufPos,
uint32_t invokeId,
ByteBuffer* response)
mmsClient_handleFileCloseRequest(MmsConnection connection, uint8_t* buffer, int bufPos, int maxBufPos,
uint32_t invokeId, ByteBuffer* response)
{
int32_t frsmId = BerDecoder_decodeInt32(buffer, maxBufPos - bufPos, bufPos);
MmsFileReadStateMachine* frsm = getFrsm(connection, frsmId);
if (frsm) {
if (frsm)
{
if (frsm->obtainRequest)
frsm->obtainRequest->timeout = Hal_getTimeInMs() + connection->requestTimeout;
if(frsm->fileHandle){
if (frsm->fileHandle)
{
FileSystem_closeFile(frsm->fileHandle);
frsm->fileHandle = NULL;
}
@ -243,15 +252,16 @@ mmsClient_closeOutstandingOpenFiles(MmsConnection connection)
{
int i;
for (i = 0; i < CONFIG_MMS_MAX_NUMBER_OF_OPEN_FILES_PER_CONNECTION; i++) {
if (connection->frsms[i].fileHandle != NULL) {
for (i = 0; i < CONFIG_MMS_MAX_NUMBER_OF_OPEN_FILES_PER_CONNECTION; i++)
{
if (connection->frsms[i].fileHandle != NULL)
{
FileSystem_closeFile(connection->frsms[i].fileHandle);
connection->frsms[i].fileHandle = NULL;
}
}
}
#endif /* (MMS_OBTAIN_FILE_SERVICE == 1) */
#if (MMS_FILE_SERVICE == 1)
@ -266,9 +276,11 @@ mmsClient_createFileOpenRequest(uint32_t invokeId, ByteBuffer* request, const ch
uint32_t fileNameSeqSize = fileNameSize;
uint32_t fileOpenRequestSize = 1 + BerEncoder_determineLengthSize(fileNameSeqSize) + fileNameSeqSize + 2 + BerEncoder_UInt32determineEncodedSize(initialPosition);
uint32_t fileOpenRequestSize = 1 + BerEncoder_determineLengthSize(fileNameSeqSize) + fileNameSeqSize + 2 +
BerEncoder_UInt32determineEncodedSize(initialPosition);
uint32_t confirmedRequestPduSize = 2 + invokeIdSize + 2 + BerEncoder_determineLengthSize(fileOpenRequestSize) + fileOpenRequestSize;
uint32_t confirmedRequestPduSize =
2 + invokeIdSize + 2 + BerEncoder_determineLengthSize(fileOpenRequestSize) + fileOpenRequestSize;
int bufPos = 0;
uint8_t* buffer = request->buffer;
@ -283,7 +295,7 @@ mmsClient_createFileOpenRequest(uint32_t invokeId, ByteBuffer* request, const ch
bufPos = BerEncoder_encodeLength(fileOpenRequestSize, buffer, bufPos);
bufPos = BerEncoder_encodeTL(0xa0, fileNameSeqSize, buffer, bufPos);
bufPos = BerEncoder_encodeOctetString(0x19, (uint8_t*) fileName, fileNameStringSize, buffer, bufPos);
bufPos = BerEncoder_encodeOctetString(0x19, (uint8_t*)fileName, fileNameStringSize, buffer, bufPos);
bufPos = BerEncoder_encodeUInt32WithTL(0x81, initialPosition, buffer, bufPos);
@ -300,7 +312,8 @@ mmsClient_createFileDeleteRequest(uint32_t invokeId, ByteBuffer* request, const
uint32_t fileDeleteRequestSize = fileNameSize;
uint32_t confirmedRequestPduSize = 1 + 2 + invokeIdSize + 1 + BerEncoder_determineLengthSize(fileDeleteRequestSize) + fileDeleteRequestSize;
uint32_t confirmedRequestPduSize =
1 + 2 + invokeIdSize + 1 + BerEncoder_determineLengthSize(fileDeleteRequestSize) + fileDeleteRequestSize;
int bufPos = 0;
uint8_t* buffer = request->buffer;
@ -314,7 +327,7 @@ mmsClient_createFileDeleteRequest(uint32_t invokeId, ByteBuffer* request, const
buffer[bufPos++] = 0x4c;
bufPos = BerEncoder_encodeLength(fileDeleteRequestSize, buffer, bufPos);
bufPos = BerEncoder_encodeOctetString(0x19, (uint8_t*) fileName, fileNameStringSize, buffer, bufPos);
bufPos = BerEncoder_encodeOctetString(0x19, (uint8_t*)fileName, fileNameStringSize, buffer, bufPos);
request->size = bufPos;
}
@ -334,7 +347,7 @@ mmsClient_createFileReadRequest(uint32_t invokeId, ByteBuffer* request, int32_t
uint32_t frsmIdSize = frsmIdBer.size;
uint32_t confirmedRequestPduSize = 1 + 2 + 2 + invokeIdSize + frsmIdSize;
uint32_t confirmedRequestPduSize = 1 + 2 + 2 + invokeIdSize + frsmIdSize;
int bufPos = 0;
uint8_t* buffer = request->buffer;
@ -356,24 +369,27 @@ encodeFileSpecification(uint8_t tag, const char* fileSpecification, uint8_t* buf
uint32_t fileNameStringSize = strlen(fileSpecification);
uint32_t fileNameSeqSize = 1 + BerEncoder_determineLengthSize(fileNameStringSize) + fileNameStringSize;
if (buffer != NULL) {
if (buffer != NULL)
{
bufPos = BerEncoder_encodeTL(tag, fileNameSeqSize, buffer, bufPos);
bufPos = BerEncoder_encodeOctetString(0x19, (uint8_t*) fileSpecification, fileNameStringSize, buffer, bufPos);
bufPos = BerEncoder_encodeOctetString(0x19, (uint8_t*)fileSpecification, fileNameStringSize, buffer, bufPos);
return bufPos;
}
else {
else
{
return fileNameSeqSize + 1 + BerEncoder_determineLengthSize(fileNameSeqSize);
}
}
void
mmsClient_createFileDirectoryRequest(uint32_t invokeId, ByteBuffer* request, const char* fileSpecification, const char* continueAfter)
mmsClient_createFileDirectoryRequest(uint32_t invokeId, ByteBuffer* request, const char* fileSpecification,
const char* continueAfter)
{
uint32_t invokeIdSize = BerEncoder_UInt32determineEncodedSize(invokeId);
uint32_t confirmedRequestPduSize = 1 + 2 + 1 + invokeIdSize;
uint32_t confirmedRequestPduSize = 1 + 2 + 1 + invokeIdSize;
uint32_t parameterSize = 0;
@ -407,7 +423,8 @@ mmsClient_createFileDirectoryRequest(uint32_t invokeId, ByteBuffer* request, con
}
void
mmsClient_createFileRenameRequest(uint32_t invokeId, ByteBuffer* request, const char* currentFileName, const char* newFileName)
mmsClient_createFileRenameRequest(uint32_t invokeId, ByteBuffer* request, const char* currentFileName,
const char* newFileName)
{
uint32_t invokeIdSize = BerEncoder_UInt32determineEncodedSize(invokeId);
@ -417,7 +434,8 @@ mmsClient_createFileRenameRequest(uint32_t invokeId, ByteBuffer* request, const
parameterSize += encodeFileSpecification(0xa1, newFileName, NULL, 0);
uint32_t confirmedRequestPduSize = 2 + invokeIdSize + 2 + BerEncoder_determineLengthSize(parameterSize) + parameterSize;
uint32_t confirmedRequestPduSize =
2 + invokeIdSize + 2 + BerEncoder_determineLengthSize(parameterSize) + parameterSize;
int bufPos = 0;
uint8_t* buffer = request->buffer;
@ -439,7 +457,8 @@ mmsClient_createFileRenameRequest(uint32_t invokeId, ByteBuffer* request, const
}
void
mmsClient_createObtainFileRequest(uint32_t invokeId, ByteBuffer* request, const char* sourceFile, const char* destinationFile)
mmsClient_createObtainFileRequest(uint32_t invokeId, ByteBuffer* request, const char* sourceFile,
const char* destinationFile)
{
uint32_t invokeIdSize = BerEncoder_UInt32determineEncodedSize(invokeId);
@ -449,7 +468,8 @@ mmsClient_createObtainFileRequest(uint32_t invokeId, ByteBuffer* request, const
parameterSize += encodeFileSpecification(0xa1, destinationFile, NULL, 0);
uint32_t confirmedRequestPduSize = 2 + invokeIdSize + 2 + BerEncoder_determineLengthSize(parameterSize) + parameterSize;
uint32_t confirmedRequestPduSize =
2 + invokeIdSize + 2 + BerEncoder_determineLengthSize(parameterSize) + parameterSize;
int bufPos = 0;
uint8_t* buffer = request->buffer;
@ -475,7 +495,8 @@ parseFileAttributes(uint8_t* buffer, int bufPos, int maxBufPos, uint32_t* fileSi
{
int endPos = maxBufPos;
while (bufPos < endPos) {
while (bufPos < endPos)
{
uint8_t tag = buffer[bufPos++];
int length;
@ -483,26 +504,27 @@ parseFileAttributes(uint8_t* buffer, int bufPos, int maxBufPos, uint32_t* fileSi
if (bufPos < 0)
return false;
switch (tag) {
switch (tag)
{
case 0x80: /* sizeOfFile */
if (fileSize != NULL)
*fileSize = BerDecoder_decodeUint32(buffer, length, bufPos);
break;
case 0x81: /* lastModified */
{
if (lastModified != NULL)
{
if (lastModified != NULL)
{
char gtString[40];
char gtString[40];
if (length > sizeof(gtString) - 1)
return false; /* lastModified string too long */
if (length > sizeof(gtString) - 1)
return false; /* lastModified string too long */
memcpy(gtString, buffer + bufPos, length);
gtString[length] = 0;
*lastModified = Conversions_generalizedTimeToMsTime(gtString);
}
memcpy(gtString, buffer + bufPos, length);
gtString[length] = 0;
*lastModified = Conversions_generalizedTimeToMsTime(gtString);
}
break;
}
break;
case 0x00: /* indefinite length end tag -> ignore */
break;
default:
@ -516,7 +538,8 @@ parseFileAttributes(uint8_t* buffer, int bufPos, int maxBufPos, uint32_t* fileSi
}
static bool
parseDirectoryEntry(uint8_t* buffer, int bufPos, int maxBufPos, uint32_t invokeId, MmsConnection_FileDirectoryHandler handler, void* parameter)
parseDirectoryEntry(uint8_t* buffer, int bufPos, int maxBufPos, uint32_t invokeId,
MmsConnection_FileDirectoryHandler handler, void* parameter)
{
char fileNameMemory[400];
char* filename = NULL;
@ -536,7 +559,8 @@ parseDirectoryEntry(uint8_t* buffer, int bufPos, int maxBufPos, uint32_t invokeI
return false;
}
switch (tag) {
switch (tag)
{
case 0xa0: /* file-name */
filename = fileNameMemory;
@ -589,7 +613,7 @@ parseDirectoryEntry(uint8_t* buffer, int bufPos, int maxBufPos, uint32_t invokeI
static bool
parseListOfDirectoryEntries(uint8_t* buffer, int bufPos, int maxBufPos, uint32_t invokeId,
MmsConnection_FileDirectoryHandler handler, void* parameter)
MmsConnection_FileDirectoryHandler handler, void* parameter)
{
uint8_t tag = buffer[bufPos++];
@ -600,17 +624,21 @@ parseListOfDirectoryEntries(uint8_t* buffer, int bufPos, int maxBufPos, uint32_t
bufPos = BerDecoder_decodeLength(buffer, &length, bufPos, maxBufPos);
if (bufPos < 0) return false;
if (bufPos < 0)
return false;
int endPos = bufPos + length;
while (bufPos < endPos) {
while (bufPos < endPos)
{
tag = buffer[bufPos++];
bufPos = BerDecoder_decodeLength(buffer, &length, bufPos, maxBufPos);
if (bufPos < 0) return false;
if (bufPos < 0)
return false;
switch (tag) {
switch (tag)
{
case 0x30: /* Sequence */
parseDirectoryEntry(buffer, bufPos, bufPos + length, invokeId, handler, parameter);
bufPos += length;
@ -629,7 +657,8 @@ parseListOfDirectoryEntries(uint8_t* buffer, int bufPos, int maxBufPos, uint32_t
}
bool
mmsClient_parseFileDirectoryResponse(ByteBuffer* response, int bufPos, uint32_t invokeId, MmsConnection_FileDirectoryHandler handler, void* parameter)
mmsClient_parseFileDirectoryResponse(ByteBuffer* response, int bufPos, uint32_t invokeId,
MmsConnection_FileDirectoryHandler handler, void* parameter)
{
uint8_t* buffer = response->buffer;
int maxBufPos = response->size;
@ -637,7 +666,8 @@ mmsClient_parseFileDirectoryResponse(ByteBuffer* response, int bufPos, uint32_t
uint8_t tag = buffer[bufPos++];
if (tag != 0xbf) {
if (tag != 0xbf)
{
if (DEBUG_MMS_CLIENT)
printf("mmsClient_parseFileDirectoryResponse: unknown tag %02x\n", tag);
return false;
@ -645,26 +675,31 @@ mmsClient_parseFileDirectoryResponse(ByteBuffer* response, int bufPos, uint32_t
tag = buffer[bufPos++];
if (tag != 0x4d) {
if (tag != 0x4d)
{
if (DEBUG_MMS_CLIENT)
printf("mmsClient_parseFileDirectoryResponse: unknown tag %02x\n", tag);
return false;
}
bufPos = BerDecoder_decodeLength(buffer, &length, bufPos, maxBufPos);
if (bufPos < 0) return false;
if (bufPos < 0)
return false;
int endPos = bufPos + length;
bool moreFollows = false;
while (bufPos < endPos) {
while (bufPos < endPos)
{
tag = buffer[bufPos++];
bufPos = BerDecoder_decodeLength(buffer, &length, bufPos, maxBufPos);
if (bufPos < 0) return false;
if (bufPos < 0)
return false;
switch (tag) {
switch (tag)
{
case 0xa0: /* listOfDirectoryEntries */
parseListOfDirectoryEntries(buffer, bufPos, bufPos + length, invokeId, handler, parameter);
@ -690,13 +725,15 @@ mmsClient_parseFileDirectoryResponse(ByteBuffer* response, int bufPos, uint32_t
}
bool
mmsMsg_parseFileOpenResponse(uint8_t* buffer, int bufPos, int maxBufPos, int32_t* frsmId, uint32_t* fileSize, uint64_t* lastModified)
mmsMsg_parseFileOpenResponse(uint8_t* buffer, int bufPos, int maxBufPos, int32_t* frsmId, uint32_t* fileSize,
uint64_t* lastModified)
{
int length;
uint8_t tag = buffer[bufPos++];
if (tag != 0xbf) {
if (tag != 0xbf)
{
if (DEBUG_MMS_CLIENT)
printf("MMS: mmsClient_parseFileOpenResponse: unknown tag %02x\n", tag);
return false;
@ -704,7 +741,8 @@ mmsMsg_parseFileOpenResponse(uint8_t* buffer, int bufPos, int maxBufPos, int32_t
tag = buffer[bufPos++];
if (tag != 0x48) {
if (tag != 0x48)
{
if (DEBUG_MMS_CLIENT)
printf("MMS_CLIENT: mmsClient_parseFileOpenResponse: unknown tag %02x\n", tag);
return false;
@ -716,14 +754,16 @@ mmsMsg_parseFileOpenResponse(uint8_t* buffer, int bufPos, int maxBufPos, int32_t
int endPos = bufPos + length;
while (bufPos < endPos) {
while (bufPos < endPos)
{
tag = buffer[bufPos++];
bufPos = BerDecoder_decodeLength(buffer, &length, bufPos, maxBufPos);
if (bufPos < 0)
return false;
switch (tag) {
switch (tag)
{
case 0x80: /* frsmId */
*frsmId = BerDecoder_decodeInt32(buffer, length, bufPos);
@ -748,7 +788,8 @@ mmsMsg_parseFileOpenResponse(uint8_t* buffer, int bufPos, int maxBufPos, int32_t
}
bool
mmsMsg_parseFileReadResponse(uint8_t* buffer, int bufPos, int maxBufPos, uint32_t invokeId, int32_t frsmId, bool* moreFollows, MmsConnection_FileReadHandler handler, void* handlerParameter)
mmsMsg_parseFileReadResponse(uint8_t* buffer, int bufPos, int maxBufPos, uint32_t invokeId, int32_t frsmId,
bool* moreFollows, MmsConnection_FileReadHandler handler, void* handlerParameter)
{
int length;
uint8_t* data = NULL;
@ -756,7 +797,8 @@ mmsMsg_parseFileReadResponse(uint8_t* buffer, int bufPos, int maxBufPos, uint32_
uint8_t tag = buffer[bufPos++];
if (tag != 0xbf) {
if (tag != 0xbf)
{
if (DEBUG_MMS_CLIENT)
printf("MMS_CLIENT/SERVER: mmsClient_parseFileReadResponse: unknown tag %02x\n", tag);
return false;
@ -766,7 +808,8 @@ mmsMsg_parseFileReadResponse(uint8_t* buffer, int bufPos, int maxBufPos, uint32_
*moreFollows = true;
if (tag != 0x49) {
if (tag != 0x49)
{
if (DEBUG_MMS_CLIENT)
printf("MMS_CLIENT/SERVER: mmsClient_parseFileReadResponse: unknown tag %02x\n", tag);
return false;
@ -778,14 +821,16 @@ mmsMsg_parseFileReadResponse(uint8_t* buffer, int bufPos, int maxBufPos, uint32_
int endPos = bufPos + length;
while (bufPos < endPos) {
while (bufPos < endPos)
{
tag = buffer[bufPos++];
bufPos = BerDecoder_decodeLength(buffer, &length, bufPos, maxBufPos);
if (bufPos < 0)
return false;
switch (tag) {
switch (tag)
{
case 0x80: /* fileData */
data = buffer + bufPos;
dataLen = length;
@ -828,7 +873,7 @@ mmsClient_createFileCloseRequest(uint32_t invokeId, ByteBuffer* request, int32_t
BerInteger_setInt32(&frsmIdBer, frsmId);
uint32_t confirmedRequestPduSize = 1 + 2 + 2 + invokeIdSize + frsmIdBer.size;
uint32_t confirmedRequestPduSize = 1 + 2 + 2 + invokeIdSize + frsmIdBer.size;
int bufPos = 0;
uint8_t* buffer = request->buffer;

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