uint8_t bootstrap_handleRequest(lwm2m_context_t * contextP,
lwm2m_uri_t * uriP,
void * fromSessionH,
coap_packet_t * message,
coap_packet_t * response)
{
uint8_t result;
char * name;
LOG_URI(uriP);
if (contextP->bootstrapCallback == NULL) return COAP_500_INTERNAL_SERVER_ERROR;
if (message->code != COAP_POST) return COAP_400_BAD_REQUEST;
if (message->uri_query == NULL) return COAP_400_BAD_REQUEST;
if (message->payload != NULL) return COAP_400_BAD_REQUEST;
if (lwm2m_strncmp((char *)message->uri_query->data, QUERY_NAME, QUERY_NAME_LEN) != 0)
{
return COAP_400_BAD_REQUEST;
}
if (message->uri_query->len == QUERY_NAME_LEN) return COAP_400_BAD_REQUEST;
if (message->uri_query->next != NULL) return COAP_400_BAD_REQUEST;
name = (char *)lwm2m_malloc(message->uri_query->len - QUERY_NAME_LEN + 1);
if (name == NULL) return COAP_500_INTERNAL_SERVER_ERROR;
memcpy(name, message->uri_query->data + QUERY_NAME_LEN, message->uri_query->len - QUERY_NAME_LEN);
name[message->uri_query->len - QUERY_NAME_LEN] = 0;
result = contextP->bootstrapCallback(fromSessionH, COAP_NO_ERROR, NULL, name, contextP->bootstrapUserData);
lwm2m_free(name);
return result;
}
static lwm2m_client_object_t * prv_decodeRegisterPayload(uint8_t * payload,
uint16_t payloadLength,
char ** altPath)
{
lwm2m_client_object_t * objList;
uint16_t id;
uint16_t instance;
uint16_t start;
uint16_t end;
int result;
uint16_t altPathStart;
uint16_t altPathEnd;
uint16_t altPathLen;
objList = NULL;
start = 0;
altPathStart = 0;
altPathEnd = 0;
altPathLen = 0;
*altPath = NULL;
// Does the registration payload begin with an alternative path ?
while (start < payloadLength && payload[start] == ' ') start++;
if (start != payloadLength)
{
if (payload[start] == '<')
{
altPathStart = start + 1;
}
while (start < payloadLength - 1 && payload[start] != '>') start++;
if (start != payloadLength - 1)
{
altPathEnd = start - 1;
if ((payloadLength > altPathEnd + REG_LWM2M_RESOURCE_TYPE_LEN)
&& (0 == lwm2m_strncmp(REG_LWM2M_RESOURCE_TYPE, (char *) payload + altPathEnd + 1, REG_LWM2M_RESOURCE_TYPE_LEN)))
{
payload[altPathEnd + 1] = 0;
*altPath = lwm2m_strdup((char *)payload + altPathStart);
if (*altPath == NULL) return NULL;
if (0 == prv_isAltPathValid(*altPath))
{
return NULL;
}
altPathLen = altPathEnd - altPathStart + 1;
}
}
}
if (altPathLen != 0)
{
start = altPathEnd + 1 + REG_LWM2M_RESOURCE_TYPE_LEN;
// If declared alternative path is "/", use NULL instead
if (altPathLen == 1)
{
lwm2m_free(*altPath);
*altPath = NULL;
}
}
else
{
start = 0;
}
while (start < payloadLength)
{
while (start < payloadLength && payload[start] == ' ') start++;
if (start == payloadLength) return objList;
end = start;
while (end < payloadLength && payload[end] != ',') end++;
result = prv_getId(payload + start, end - start, *altPath, altPathLen, &id, &instance);
if (result != 0)
{
lwm2m_client_object_t * objectP;
objectP = (lwm2m_client_object_t *)lwm2m_list_find((lwm2m_list_t *)objList, id);
if (objectP == NULL)
{
objectP = (lwm2m_client_object_t *)lwm2m_malloc(sizeof(lwm2m_client_object_t));
memset(objectP, 0, sizeof(lwm2m_client_object_t));
if (objectP == NULL) return objList;
objectP->id = id;
objList = (lwm2m_client_object_t *)LWM2M_LIST_ADD(objList, objectP);
}
if (result == 2)
{
lwm2m_list_t * instanceP;
instanceP = lwm2m_list_find(objectP->instanceList, instance);
if (instanceP == NULL)
{
instanceP = (lwm2m_list_t *)lwm2m_malloc(sizeof(lwm2m_list_t));
memset(instanceP, 0, sizeof(lwm2m_list_t));
instanceP->id = instance;
objectP->instanceList = LWM2M_LIST_ADD(objectP->instanceList, instanceP);
}
}
}
start = end + 1;
}
return objList;
}
static int prv_getId(uint8_t * data,
uint16_t length,
char * altPath,
uint16_t altPathLen,
uint16_t * objId,
uint16_t * instanceId)
{
int value;
uint16_t limit;
uint16_t end;
// Expecting application/link-format (RFC6690)
// strip open and close tags
if (length >= 1 && data[0] == '<' && data[length-1] == '>')
{
data++;
length-=2;
}
else
{
return 0;
}
if (altPath != NULL)
{
if (length <= altPathLen) return 0;
if (0 != lwm2m_strncmp((char *)data, altPath, altPathLen)) return 0;
data += altPathLen;
length -= altPathLen;
}
// If there is a preceding /, remove it
if (length >= 1 && data[0] == '/')
{
data++;
length-=1;
}
limit = 0;
while (limit < length && data[limit] != '/' && data[limit] != ' ') limit++;
value = prv_get_number(data, limit);
if (value < 0 || value >= LWM2M_MAX_ID) return 0;
*objId = value;
if (limit != length)
{
limit += 1;
end = limit;
while (end < length && data[end] != ' ') end++;
if (end != limit)
{
value = prv_get_number(data + limit, end - limit);
if (value >= 0 && value < LWM2M_MAX_ID)
{
*instanceId = value;
return 2;
}
}
}
return 1;
}
static int prv_getParameters(multi_option_t * query,
char ** nameP,
uint32_t * lifetimeP,
char ** msisdnP,
lwm2m_binding_t * bindingP)
{
*nameP = NULL;
*lifetimeP = 0;
*msisdnP = NULL;
*bindingP = BINDING_UNKNOWN;
while (query != NULL)
{
if (lwm2m_strncmp((char *)query->data, QUERY_TEMPLATE, QUERY_LENGTH) == 0)
{
if (*nameP != NULL) goto error;
if (query->len == QUERY_LENGTH) goto error;
*nameP = (char *)lwm2m_malloc(query->len - QUERY_LENGTH + 1);
if (*nameP != NULL)
{
memcpy(*nameP, query->data + QUERY_LENGTH, query->len - QUERY_LENGTH);
(*nameP)[query->len - QUERY_LENGTH] = 0;
}
}
else if (lwm2m_strncmp((char *)query->data, QUERY_SMS, QUERY_SMS_LEN) == 0)
{
if (*msisdnP != NULL) goto error;
if (query->len == QUERY_SMS_LEN) goto error;
*msisdnP = (char *)lwm2m_malloc(query->len - QUERY_SMS_LEN + 1);
if (*msisdnP != NULL)
{
memcpy(*msisdnP, query->data + QUERY_SMS_LEN, query->len - QUERY_SMS_LEN);
(*msisdnP)[query->len - QUERY_SMS_LEN] = 0;
}
}
else if (lwm2m_strncmp((char *)query->data, QUERY_LIFETIME, QUERY_LIFETIME_LEN) == 0)
{
int i;
if (*lifetimeP != 0) goto error;
if (query->len == QUERY_LIFETIME_LEN) goto error;
for (i = QUERY_LIFETIME_LEN ; i < query->len ; i++)
{
if (query->data[i] < '0' || query->data[i] > '9') goto error;
*lifetimeP = (*lifetimeP * 10) + (query->data[i] - '0');
}
}
else if (lwm2m_strncmp((char *)query->data, QUERY_VERSION, QUERY_VERSION_LEN) == 0)
{
if ((query->len != QUERY_VERSION_FULL_LEN)
|| (lwm2m_strncmp((char *)query->data, QUERY_VERSION_FULL, QUERY_VERSION_FULL_LEN) != 0))
{
goto error;
}
}
else if (lwm2m_strncmp((char *)query->data, QUERY_BINDING, QUERY_BINDING_LEN) == 0)
{
if (*bindingP != BINDING_UNKNOWN) goto error;
if (query->len == QUERY_BINDING_LEN) goto error;
*bindingP = lwm2m_stringToBinding(query->data + QUERY_BINDING_LEN, query->len - QUERY_BINDING_LEN);
}
query = query->next;
}
return 0;
error:
if (*nameP != NULL) lwm2m_free(*nameP);
if (*msisdnP != NULL) lwm2m_free(*msisdnP);
return -1;
}
static int prv_parseItem(uint8_t * buffer,
size_t bufferLen,
_record_t * recordP)
{
size_t index;
recordP->resId = LWM2M_MAX_ID;
recordP->resInstId = LWM2M_MAX_ID;
recordP->type = _TYPE_UNSET;
recordP->value = NULL;
recordP->valueLen = 0;
index = 0;
do
{
int tokenStart;
int tokenLen;
int valueStart;
int valueLen;
int next;
next = prv_split(buffer+index, bufferLen-index, &tokenStart, &tokenLen, &valueStart, &valueLen);
if (next < 0) return -1;
switch (tokenLen)
{
case 1:
{
switch (buffer[index+tokenStart])
{
case 'n':
{
int i;
uint32_t readId;
if (recordP->resId != LWM2M_MAX_ID) return -1;
// Check for " around URI
if (valueLen < 3
|| buffer[index+valueStart] != '"'
|| buffer[index+valueStart+valueLen-1] != '"')
{
return -1;
}
i = 1;
readId = 0;
while (i < valueLen-1 && buffer[index+valueStart+i] != '/')
{
if (buffer[index+valueStart+i] < '0'
|| buffer[index+valueStart+i] > '9')
{
return -1;
}
readId *= 10;
readId += buffer[index+valueStart+i] - '0';
if (readId > LWM2M_MAX_ID) return -1;
i++;
}
recordP->resId = readId;
if (buffer[index+valueStart+i] == '/')
{
int j;
if (i == valueLen-1) return -1;
j = 1;
readId = 0;
while (i+j < valueLen-1)
{
if (buffer[index+valueStart+i+j] < '0'
|| buffer[index+valueStart+i+j] > '9')
{
return -1;
}
readId *= 10;
readId += buffer[index+valueStart+i+j] - '0';
if (readId > LWM2M_MAX_ID) return -1;
i++;
}
recordP->resInstId = readId;
}
// TODO: support more URIs than just res and res/instance
}
break;
case 'v':
if (recordP->type != _TYPE_UNSET) return -1;
recordP->type = _TYPE_FLOAT;
recordP->value = buffer + index + valueStart;
recordP->valueLen = valueLen;
break;
case 't':
// TODO: support time
break;
default:
return -1;
}
}
break;
case 2:
{
// "bv", "ov", or "sv"
if (buffer[index+tokenStart+1] != 'v') return -1;
switch (buffer[index+tokenStart])
{
case 'b':
if (recordP->type != _TYPE_UNSET) return -1;
if (0 == lwm2m_strncmp(JSON_TRUE_STRING, (char *)buffer + index + valueStart, valueLen))
{
recordP->type = _TYPE_TRUE;
}
else if (0 == lwm2m_strncmp(JSON_FALSE_STRING, (char *)buffer + index + valueStart, valueLen))
{
recordP->type = _TYPE_FALSE;
}
else
{
return -1;
}
break;
case 'o':
if (recordP->type != _TYPE_UNSET) return -1;
// TODO: support object link
break;
case 's':
if (recordP->type != _TYPE_UNSET) return -1;
// Check for " around value
if (valueLen < 2
|| buffer[index+valueStart] != '"'
|| buffer[index+valueStart+valueLen-1] != '"')
{
return -1;
}
recordP->type = _TYPE_STRING;
recordP->value = buffer + index + valueStart + 1;
recordP->valueLen = valueLen - 2;
break;
default:
return -1;
}
}
break;
default:
return -1;
}
index += next + 1;
} while (index < bufferLen);
return 0;
}
static int prv_readAttributes(multi_option_t * query,
lwm2m_attributes_t * attrP)
{
int64_t intValue;
double floatValue;
memset(attrP, 0, sizeof(lwm2m_attributes_t));
while (query != NULL)
{
if (lwm2m_strncmp((char *)query->data, ATTR_MIN_PERIOD_STR, ATTR_MIN_PERIOD_LEN) == 0)
{
if (0 != ((attrP->toSet | attrP->toClear) & LWM2M_ATTR_FLAG_MIN_PERIOD)) return -1;
if (query->len == ATTR_MIN_PERIOD_LEN) return -1;
if (1 != utils_textToInt(query->data + ATTR_MIN_PERIOD_LEN, query->len - ATTR_MIN_PERIOD_LEN, &intValue)) return -1;
if (intValue < 0) return -1;
attrP->toSet |= LWM2M_ATTR_FLAG_MIN_PERIOD;
attrP->minPeriod = intValue;
}
else if (lwm2m_strncmp((char *)query->data, ATTR_MIN_PERIOD_STR, ATTR_MIN_PERIOD_LEN - 1) == 0)
{
if (0 != ((attrP->toSet | attrP->toClear) & LWM2M_ATTR_FLAG_MIN_PERIOD)) return -1;
if (query->len != ATTR_MIN_PERIOD_LEN - 1) return -1;
attrP->toClear |= LWM2M_ATTR_FLAG_MIN_PERIOD;
}
else if (lwm2m_strncmp((char *)query->data, ATTR_MAX_PERIOD_STR, ATTR_MAX_PERIOD_LEN) == 0)
{
if (0 != ((attrP->toSet | attrP->toClear) & LWM2M_ATTR_FLAG_MAX_PERIOD)) return -1;
if (query->len == ATTR_MAX_PERIOD_LEN) return -1;
if (1 != utils_textToInt(query->data + ATTR_MAX_PERIOD_LEN, query->len - ATTR_MAX_PERIOD_LEN, &intValue)) return -1;
if (intValue < 0) return -1;
attrP->toSet |= LWM2M_ATTR_FLAG_MAX_PERIOD;
attrP->maxPeriod = intValue;
}
else if (lwm2m_strncmp((char *)query->data, ATTR_MAX_PERIOD_STR, ATTR_MAX_PERIOD_LEN - 1) == 0)
{
if (0 != ((attrP->toSet | attrP->toClear) & LWM2M_ATTR_FLAG_MAX_PERIOD)) return -1;
if (query->len != ATTR_MAX_PERIOD_LEN - 1) return -1;
attrP->toClear |= LWM2M_ATTR_FLAG_MAX_PERIOD;
}
else if (lwm2m_strncmp((char *)query->data, ATTR_GREATER_THAN_STR, ATTR_GREATER_THAN_LEN) == 0)
{
if (0 != ((attrP->toSet | attrP->toClear) & LWM2M_ATTR_FLAG_GREATER_THAN)) return -1;
if (query->len == ATTR_GREATER_THAN_LEN) return -1;
if (1 != utils_textToFloat(query->data + ATTR_GREATER_THAN_LEN, query->len - ATTR_GREATER_THAN_LEN, &floatValue)) return -1;
attrP->toSet |= LWM2M_ATTR_FLAG_GREATER_THAN;
attrP->greaterThan = floatValue;
}
else if (lwm2m_strncmp((char *)query->data, ATTR_GREATER_THAN_STR, ATTR_GREATER_THAN_LEN - 1) == 0)
{
if (0 != ((attrP->toSet | attrP->toClear) & LWM2M_ATTR_FLAG_GREATER_THAN)) return -1;
if (query->len != ATTR_GREATER_THAN_LEN - 1) return -1;
attrP->toClear |= LWM2M_ATTR_FLAG_GREATER_THAN;
}
else if (lwm2m_strncmp((char *)query->data, ATTR_LESS_THAN_STR, ATTR_LESS_THAN_LEN) == 0)
{
if (0 != ((attrP->toSet | attrP->toClear) & LWM2M_ATTR_FLAG_LESS_THAN)) return -1;
if (query->len == ATTR_LESS_THAN_LEN) return -1;
if (1 != utils_textToFloat(query->data + ATTR_LESS_THAN_LEN, query->len - ATTR_LESS_THAN_LEN, &floatValue)) return -1;
attrP->toSet |= LWM2M_ATTR_FLAG_LESS_THAN;
attrP->lessThan = floatValue;
}
else if (lwm2m_strncmp((char *)query->data, ATTR_LESS_THAN_STR, ATTR_LESS_THAN_LEN - 1) == 0)
{
if (0 != ((attrP->toSet | attrP->toClear) & LWM2M_ATTR_FLAG_LESS_THAN)) return -1;
if (query->len != ATTR_LESS_THAN_LEN - 1) return -1;
attrP->toClear |= LWM2M_ATTR_FLAG_LESS_THAN;
}
else if (lwm2m_strncmp((char *)query->data, ATTR_STEP_STR, ATTR_STEP_LEN) == 0)
{
if (0 != ((attrP->toSet | attrP->toClear) & LWM2M_ATTR_FLAG_STEP)) return -1;
if (query->len == ATTR_STEP_LEN) return -1;
if (1 != utils_textToFloat(query->data + ATTR_STEP_LEN, query->len - ATTR_STEP_LEN, &floatValue)) return -1;
if (floatValue < 0) return -1;
attrP->toSet |= LWM2M_ATTR_FLAG_STEP;
attrP->step = floatValue;
}
else if (lwm2m_strncmp((char *)query->data, ATTR_STEP_STR, ATTR_STEP_LEN - 1) == 0)
{
if (0 != ((attrP->toSet | attrP->toClear) & LWM2M_ATTR_FLAG_STEP)) return -1;
if (query->len != ATTR_STEP_LEN - 1) return -1;
attrP->toClear |= LWM2M_ATTR_FLAG_STEP;
}
else return -1;
query = query->next;
}
return 0;
}
static int prv_parseLinkAttributes(uint8_t * data,
uint16_t length,
bool * supportJSON,
char ** altPath)
{
uint16_t index;
uint16_t pathStart;
uint16_t pathLength;
bool isValid;
isValid = false;
// Expecting application/link-format (RFC6690)
// leading space were removed before. Remove trailing spaces.
while (length > 0 && data[length-1] == ' ') length--;
// strip open tag
if (length >= 2 && data[0] == REG_URI_START)
{
data += 1;
length -= 1;
}
else
{
return 0;
}
pathStart = 0;
index = length - 1;
while (index > 0 && data[index] != REG_URI_END) index--;
// link attributes are required
if (index == 0 || index == length - 1) return 0;
// If there is a preceding /, remove it
if (data[pathStart] == '/')
{
pathStart += 1;
}
pathLength = index - pathStart;
index++;
if (index >= length || data[index] != REG_ATTR_SEPARATOR) return 0;
index++;
while (index < length)
{
uint16_t result;
uint16_t keyStart;
uint16_t keyLength;
uint16_t valueStart;
uint16_t valueLength;
result = prv_splitLinkAttribute(data + index, length - index, &keyStart, &keyLength, &valueStart, &valueLength);
if (result == 0) return 0;
if (keyLength == REG_ATTR_TYPE_KEY_LEN
&& 0 == lwm2m_strncmp(REG_ATTR_TYPE_KEY, data + index + keyStart, keyLength))
{
if (isValid == true) return 0; // declared twice
if (valueLength != REG_ATTR_TYPE_VALUE_LEN
|| 0 != lwm2m_strncmp(REG_ATTR_TYPE_VALUE, data + index + valueStart, valueLength))
{
return 0;
}
isValid = true;
}
else if (keyLength == REG_ATTR_CONTENT_KEY_LEN
&& 0 == lwm2m_strncmp(REG_ATTR_CONTENT_KEY, data + index + keyStart, keyLength))
{
if (*supportJSON == true) return 0; // declared twice
if (valueLength == REG_ATTR_CONTENT_JSON_LEN
&& 0 == lwm2m_strncmp(REG_ATTR_CONTENT_JSON, data + index + valueStart, valueLength))
{
*supportJSON = true;
}
else
{
return 0;
}
}
// else ignore this one
index += result;
}
if (isValid == false) return 0;
if (pathLength != 0)
{
*altPath = (char *)lwm2m_malloc(pathLength + 1);
if (*altPath == NULL) return 0;
memcpy(*altPath, data + pathStart, pathLength);
(*altPath)[pathLength] = 0;
}
return 1;
}
static int prv_parseItem(uint8_t * buffer,
size_t bufferLen,
_record_t * recordP)
{
size_t index;
memset(recordP->ids, 0xFF, 4*sizeof(uint16_t));
recordP->type = _TYPE_UNSET;
recordP->value = NULL;
recordP->valueLen = 0;
index = 0;
do
{
int tokenStart;
int tokenLen;
int valueStart;
int valueLen;
int next;
next = prv_split(buffer+index, bufferLen-index, &tokenStart, &tokenLen, &valueStart, &valueLen);
if (next < 0) return -1;
switch (tokenLen)
{
case 1:
{
switch (buffer[index+tokenStart])
{
case 'n':
{
int i;
int j;
if (recordP->ids[0] != LWM2M_MAX_ID) return -1;
// Check for " around URI
if (valueLen < 2
|| buffer[index+valueStart] != '"'
|| buffer[index+valueStart+valueLen-1] != '"')
{
return -1;
}
// Ignore starting /
if (buffer[index + valueStart + 1] == '/')
{
if (valueLen < 4)
{
return -1;
}
valueStart += 1;
valueLen -= 1;
}
i = 0;
j = 0;
if (valueLen > 1)
{
do {
uint32_t readId;
readId = 0;
i++;
while (i < valueLen-1 && buffer[index+valueStart+i] != '/')
{
if (buffer[index+valueStart+i] < '0'
|| buffer[index+valueStart+i] > '9')
{
return -1;
}
readId *= 10;
readId += buffer[index+valueStart+i] - '0';
if (readId > LWM2M_MAX_ID) return -1;
i++;
}
recordP->ids[j] = readId;
j++;
} while (i < valueLen-1 && j < 4 && buffer[index+valueStart+i] == '/');
if (i < valueLen-1 ) return -1;
}
}
break;
case 'v':
if (recordP->type != _TYPE_UNSET) return -1;
recordP->type = _TYPE_FLOAT;
recordP->value = buffer + index + valueStart;
recordP->valueLen = valueLen;
break;
case 't':
// TODO: support time
break;
default:
return -1;
}
}
break;
case 2:
{
// "bv", "ov", or "sv"
if (buffer[index+tokenStart+1] != 'v') return -1;
switch (buffer[index+tokenStart])
{
case 'b':
if (recordP->type != _TYPE_UNSET) return -1;
if (0 == lwm2m_strncmp(JSON_TRUE_STRING, (char *)buffer + index + valueStart, valueLen))
{
recordP->type = _TYPE_TRUE;
}
else if (0 == lwm2m_strncmp(JSON_FALSE_STRING, (char *)buffer + index + valueStart, valueLen))
{
recordP->type = _TYPE_FALSE;
}
else
{
return -1;
}
break;
case 'o':
if (recordP->type != _TYPE_UNSET) return -1;
// TODO: support object link
break;
case 's':
if (recordP->type != _TYPE_UNSET) return -1;
// Check for " around value
if (valueLen < 2
|| buffer[index+valueStart] != '"'
|| buffer[index+valueStart+valueLen-1] != '"')
{
return -1;
}
recordP->type = _TYPE_STRING;
recordP->value = buffer + index + valueStart + 1;
recordP->valueLen = valueLen - 2;
break;
default:
return -1;
}
}
break;
default:
return -1;
}
index += next + 1;
} while (index < bufferLen);
return 0;
}
static int prv_parseItem(const uint8_t * buffer,
size_t bufferLen,
_record_t * recordP,
char * baseUri,
time_t * baseTime,
lwm2m_data_t *baseValue)
{
size_t index;
const uint8_t *name = NULL;
size_t nameLength = 0;
bool timeSeen = false;
bool bnSeen = false;
bool btSeen = false;
bool bvSeen = false;
bool bverSeen = false;
memset(recordP->ids, 0xFF, 4*sizeof(uint16_t));
memset(&recordP->value, 0, sizeof(recordP->value));
recordP->time = 0;
index = 0;
do
{
size_t tokenStart;
size_t tokenLen;
size_t valueStart;
size_t valueLen;
int next;
next = json_split(buffer+index,
bufferLen-index,
&tokenStart,
&tokenLen,
&valueStart,
&valueLen);
if (next < 0) return -1;
if (tokenLen == 0) return -1;
switch (buffer[index+tokenStart])
{
case 'b':
if (tokenLen == 2 && buffer[index+tokenStart+1] == 'n')
{
if (bnSeen) return -1;
bnSeen = true;
/* Check for " around URI */
if (valueLen < 2
|| buffer[index+valueStart] != '"'
|| buffer[index+valueStart+valueLen-1] != '"')
{
return -1;
}
if (valueLen >= 3)
{
if (valueLen == 3 && buffer[index+valueStart+1] != '/') return -1;
if (valueLen > URI_MAX_STRING_LEN) return -1;
memcpy(baseUri, buffer+index+valueStart+1, valueLen-2);
baseUri[valueLen-2] = '\0';
}
else
{
baseUri[0] = '\0';
}
}
else if (tokenLen == 2 && buffer[index+tokenStart+1] == 't')
{
if (btSeen) return -1;
btSeen = true;
if (!json_convertTime(buffer+index+valueStart, valueLen, baseTime))
return -1;
}
else if (tokenLen == 2 && buffer[index+tokenStart+1] == 'v')
{
if (bvSeen) return -1;
bvSeen = true;
if (valueLen == 0)
{
baseValue->type = LWM2M_TYPE_UNDEFINED;
}
else
{
if (!json_convertNumeric(buffer+index+valueStart, valueLen, baseValue))
return -1;
/* Convert explicit 0 to implicit 0 */
switch (baseValue->type)
{
case LWM2M_TYPE_INTEGER:
if (baseValue->value.asInteger == 0)
{
baseValue->type = LWM2M_TYPE_UNDEFINED;
}
break;
case LWM2M_TYPE_UNSIGNED_INTEGER:
if (baseValue->value.asUnsigned == 0)
{
baseValue->type = LWM2M_TYPE_UNDEFINED;
}
break;
case LWM2M_TYPE_FLOAT:
if (baseValue->value.asFloat == 0.0)
{
baseValue->type = LWM2M_TYPE_UNDEFINED;
}
break;
default:
return -1;
}
}
}
else if (tokenLen == 4
&& buffer[index+tokenStart+1] == 'v'
&& buffer[index+tokenStart+2] == 'e'
&& buffer[index+tokenStart+3] == 'r')
{
int64_t value;
int res;
if (bverSeen) return -1;
bverSeen = true;
res = utils_textToInt(buffer+index+valueStart, valueLen, &value);
/* Only the default version (10) is supported */
if (!res || value != 10)
{
return -1;
}
}
else if (buffer[index+tokenStart+tokenLen-1] == '_')
{
/* Label ending in _ must be supported or generate error. */
return -1;
}
break;
case 'n':
{
if (tokenLen == 1)
{
if (name) return -1;
/* Check for " around URI */
if (valueLen < 2
|| buffer[index+valueStart] != '"'
|| buffer[index+valueStart+valueLen-1] != '"')
{
return -1;
}
name = buffer + index + valueStart + 1;
nameLength = valueLen - 2;
}
else if (buffer[index+tokenStart+tokenLen-1] == '_')
{
/* Label ending in _ must be supported or generate error. */
return -1;
}
break;
}
case 't':
if (tokenLen == 1)
{
if (timeSeen) return -1;
timeSeen = true;
if (!json_convertTime(buffer+index+valueStart, valueLen, &recordP->time))
return -1;
}
else if (buffer[index+tokenStart+tokenLen-1] == '_')
{
/* Label ending in _ must be supported or generate error. */
return -1;
}
break;
case 'v':
if (tokenLen == 1)
{
if (recordP->value.type != LWM2M_TYPE_UNDEFINED) return -1;
if (!json_convertNumeric(buffer+index+valueStart, valueLen, &recordP->value))
return -1;
}
else if (tokenLen == 2 && buffer[index+tokenStart+1] == 'b')
{
if (recordP->value.type != LWM2M_TYPE_UNDEFINED) return -1;
if (0 == lwm2m_strncmp(JSON_TRUE_STRING,
(char *)buffer + index + valueStart,
valueLen))
{
lwm2m_data_encode_bool(true, &recordP->value);
}
else if (0 == lwm2m_strncmp(JSON_FALSE_STRING,
(char *)buffer + index + valueStart,
valueLen))
{
lwm2m_data_encode_bool(false, &recordP->value);
}
else
{
return -1;
}
}
else if (tokenLen == 2
&& (buffer[index+tokenStart+1] == 'd'
|| buffer[index+tokenStart+1] == 's'))
{
if (recordP->value.type != LWM2M_TYPE_UNDEFINED) return -1;
/* Check for " around value */
if (valueLen < 2
|| buffer[index+valueStart] != '"'
|| buffer[index+valueStart+valueLen-1] != '"')
{
return -1;
}
if (buffer[index+tokenStart+1] == 'd')
{
/* Don't use lwm2m_data_encode_opaque here. It would copy the buffer */
recordP->value.type = LWM2M_TYPE_OPAQUE;
}
else
{
/* Don't use lwm2m_data_encode_nstring here. It would copy the buffer */
recordP->value.type = LWM2M_TYPE_STRING;
}
recordP->value.value.asBuffer.buffer = (uint8_t *)buffer + index + valueStart + 1;
recordP->value.value.asBuffer.length = valueLen - 2;
}
else if (tokenLen == 3 && buffer[index+tokenStart+1] == 'l' && buffer[index+tokenStart+2] == 'o')
{
if (recordP->value.type != LWM2M_TYPE_UNDEFINED) return -1;
/* Check for " around value */
if (valueLen < 2
|| buffer[index+valueStart] != '"'
|| buffer[index+valueStart+valueLen-1] != '"')
{
return -1;
}
if (!utils_textToObjLink(buffer + index + valueStart + 1,
valueLen - 2,
&recordP->value.value.asObjLink.objectId,
&recordP->value.value.asObjLink.objectInstanceId))
{
return -1;
}
recordP->value.type = LWM2M_TYPE_OBJECT_LINK;
}
else if (buffer[index+tokenStart+tokenLen-1] == '_')
{
/* Label ending in _ must be supported or generate error. */
return -1;
}
break;
default:
if (buffer[index+tokenStart+tokenLen-1] == '_')
{
/* Label ending in _ must be supported or generate error. */
return -1;
}
break;
}
index += next + 1;
} while (index < bufferLen);
/* Combine with base values */
recordP->time += *baseTime;
if (baseUri[0] || name)
{
lwm2m_uri_t uri;
size_t length = strlen(baseUri);
char uriStr[URI_MAX_STRING_LEN];
if (length > sizeof(uriStr)) return -1;
memcpy(uriStr, baseUri, length);
if (nameLength)
{
if (nameLength + length > sizeof(uriStr)) return -1;
memcpy(uriStr + length, name, nameLength);
length += nameLength;
}
if (!lwm2m_stringToUri(uriStr, length, &uri)) return -1;
if (LWM2M_URI_IS_SET_OBJECT(&uri))
{
recordP->ids[0] = uri.objectId;
}
if (LWM2M_URI_IS_SET_INSTANCE(&uri))
{
recordP->ids[1] = uri.instanceId;
}
if (LWM2M_URI_IS_SET_RESOURCE(&uri))
{
recordP->ids[2] = uri.resourceId;
}
if (LWM2M_URI_IS_SET_RESOURCE_INSTANCE(&uri))
{
recordP->ids[3] = uri.resourceInstanceId;
}
}
if (baseValue->type != LWM2M_TYPE_UNDEFINED)
{
if (recordP->value.type == LWM2M_TYPE_UNDEFINED)
{
memcpy(&recordP->value, baseValue, sizeof(*baseValue));
}
else
{
switch (recordP->value.type)
{
case LWM2M_TYPE_INTEGER:
switch(baseValue->type)
{
case LWM2M_TYPE_INTEGER:
recordP->value.value.asInteger += baseValue->value.asInteger;
break;
case LWM2M_TYPE_UNSIGNED_INTEGER:
recordP->value.value.asInteger += baseValue->value.asUnsigned;
break;
case LWM2M_TYPE_FLOAT:
recordP->value.value.asInteger += baseValue->value.asFloat;
break;
default:
return -1;
}
break;
case LWM2M_TYPE_UNSIGNED_INTEGER:
switch(baseValue->type)
{
case LWM2M_TYPE_INTEGER:
recordP->value.value.asUnsigned += baseValue->value.asInteger;
break;
case LWM2M_TYPE_UNSIGNED_INTEGER:
recordP->value.value.asUnsigned += baseValue->value.asUnsigned;
break;
case LWM2M_TYPE_FLOAT:
recordP->value.value.asUnsigned += baseValue->value.asFloat;
break;
default:
return -1;
}
break;
case LWM2M_TYPE_FLOAT:
switch(baseValue->type)
{
case LWM2M_TYPE_INTEGER:
recordP->value.value.asFloat += baseValue->value.asInteger;
break;
case LWM2M_TYPE_UNSIGNED_INTEGER:
recordP->value.value.asFloat += baseValue->value.asUnsigned;
break;
case LWM2M_TYPE_FLOAT:
recordP->value.value.asFloat += baseValue->value.asFloat;
break;
default:
return -1;
}
break;
default:
return -1;
}
}
}
return 0;
}
