void parseJSON() {
JSON_Value *root_value = json_parse_string(getData);
if (root_value != NULL) {
JSON_Value_Type type = root_value->type;
if (type == JSONArray) {
JSON_Array *stations = json_value_get_array(root_value);
char lookupCallsign[32];
sprintf(lookupCallsign, "%s%s", icaoCode, "_ATIS");
for (int i = 0; i < json_array_get_count(stations); i++) {
const JSON_Object *station = json_array_get_object(stations, i);
const char *callsign = json_object_dotget_string(station, "callsign");
if (strcmp(callsign, lookupCallsign) == 0) {
message = json_object_dotget_string(station, "atis");
XPLMDebugString(message);
break;
}
}
}
json_value_free(root_value);
}
newData = 0;
}
int APP_ParseCommand(char * pReadBuffer)
{
if(pReadBuffer == NULL)
return COMMAND_BAD_POINTER;
JSON_Value *rootValue = json_parse_string(pReadBuffer);
if (json_value_get_type(rootValue) != JSONObject)
return COMMAND_BAD_JSON;
JSON_Object * tObject = json_value_get_object(rootValue);
if(json_object_dotget_string(tObject, "message.command") != NULL)
{
if(strcmp(json_object_dotget_string(tObject, "message.command"), "hello") == 0)
{
return COMMAND_HELLO;
}
else if (strcmp(json_object_dotget_string(tObject, "message.command"), "configuration") == 0)
{
return COMMAND_CONFIGURE;
}
else if (strcmp(json_object_dotget_string(tObject, "message.command"), "debug_set") == 0)
{
return COMMAND_DEBUG_SET;
}
else
{
return COMMAND_INVALID;
}
}
else
{
return COMMAND_INVALID;
}
return COMMAND_INVALID;
}
void do_network(JSON_Value* json, char* msg) {
if(json_value_get_type(json) == JSONObject) {
JSON_Object* obj = json_value_get_object(json);
const char* msgtype = json_object_dotget_string(obj, "type");
if(strcmp(msgtype, msg_type_sensor) == 0 || strcmp(msgtype, msg_type_actor) == 0) {
const char* command = json_object_dotget_string(obj, "msg.command");
if(command != 0) execute_command(command);
}
}
}
int parse_gateway_configuration(const char * conf_file) {
const char conf_obj[] = "gateway_conf";
JSON_Value *root_val;
JSON_Object *root = NULL;
JSON_Object *conf = NULL;
unsigned long long ull = 0;
/* try to parse JSON */
root_val = json_parse_file_with_comments(conf_file);
root = json_value_get_object(root_val);
if (root == NULL) {
MSG("ERROR: %s id not a valid JSON file\n", conf_file);
exit(EXIT_FAILURE);
}
conf = json_object_get_object(root, conf_obj);
if (conf == NULL) {
MSG("INFO: %s does not contain a JSON object named %s\n", conf_file, conf_obj);
return -1;
} else {
MSG("INFO: %s does contain a JSON object named %s, parsing gateway parameters\n", conf_file, conf_obj);
}
/* getting network parameters (only those necessary for the packet logger) */
sscanf(json_object_dotget_string(conf, "gateway_ID"), "%llx", &ull);
lgwm = ull;
MSG("INFO: gateway MAC address is configured to %016llX\n", ull);
json_value_free(root_val);
return 0;
}
gchar * jobdesc_element_caps (gchar *job, gchar *element)
{
JSON_Value *val;
JSON_Object *obj;
JSON_Array *array;
gchar *p, *caps;
gint index;
val = json_parse_string_with_comments (job);
obj = json_value_get_object (val);
if (g_str_has_prefix (element, "encoder")) {
array = json_object_dotget_array (obj, "encoders");
sscanf (element, "encoder.%d", &index);
obj = json_array_get_object (array, index);
} else {
obj = json_object_get_object (obj, "source");
}
p = g_strrstr (element, "elements");
caps = (gchar *)json_object_dotget_string (obj, p);
if (caps == NULL) {
p = NULL;
} else {
p = g_strdup (caps);
}
json_value_free (val);
return p;
}
/* Testing correctness of parsed values */
void test_suite_2(void) {
JSON_Value *root_value;
JSON_Object *object;
JSON_Array *array;
int i;
const char *filename = "tests/test_2.txt";
printf("Testing %s:\n", filename);
root_value = json_parse_file(filename);
TEST(root_value);
TEST(json_value_get_type(root_value) == JSONObject);
object = json_value_get_object(root_value);
TEST(STREQ(json_object_get_string(object, "string"), "lorem ipsum"));
TEST(STREQ(json_object_get_string(object, "utf string"), "lorem ipsum"));
TEST(json_object_get_number(object, "positive one") == 1.0);
TEST(json_object_get_number(object, "negative one") == -1.0);
TEST(json_object_get_number(object, "hard to parse number") == -0.000314);
TEST(json_object_get_boolean(object, "boolean true") == 1);
TEST(json_object_get_boolean(object, "boolean false") == 0);
TEST(json_value_get_type(json_object_get_value(object, "null")) == JSONNull);
array = json_object_get_array(object, "string array");
if (array != NULL && json_array_get_count(array) > 1) {
TEST(STREQ(json_array_get_string(array, 0), "lorem"));
TEST(STREQ(json_array_get_string(array, 1), "ipsum"));
} else {
tests_failed++;
}
array = json_object_get_array(object, "x^2 array");
if (array != NULL) {
for (i = 0; i < json_array_get_count(array); i++) {
TEST(json_array_get_number(array, i) == (i * i));
}
} else {
tests_failed++;
}
TEST(json_object_get_array(object, "non existent array") == NULL);
TEST(STREQ(json_object_dotget_string(object, "object.nested string"), "str"));
TEST(json_object_dotget_boolean(object, "object.nested true") == 1);
TEST(json_object_dotget_boolean(object, "object.nested false") == 0);
TEST(json_object_dotget_value(object, "object.nested null") != NULL);
TEST(json_object_dotget_number(object, "object.nested number") == 123);
TEST(json_object_dotget_value(object, "should.be.null") == NULL);
TEST(json_object_dotget_value(object, "should.be.null.") == NULL);
TEST(json_object_dotget_value(object, ".") == NULL);
TEST(json_object_dotget_value(object, "") == NULL);
array = json_object_dotget_array(object, "object.nested array");
if (array != NULL && json_array_get_count(array) > 1) {
TEST(STREQ(json_array_get_string(array, 0), "lorem"));
TEST(STREQ(json_array_get_string(array, 1), "ipsum"));
} else {
tests_failed++;
}
TEST(json_object_dotget_boolean(object, "nested true"));
json_value_free(root_value);
}
/* Testing correctness of parsed values */
void test_suite_2(JSON_Value *root_value) {
JSON_Object *root_object;
JSON_Array *array;
size_t i;
TEST(root_value);
TEST(json_value_get_type(root_value) == JSONObject);
root_object = json_value_get_object(root_value);
TEST(STREQ(json_object_get_string(root_object, "string"), "lorem ipsum"));
TEST(STREQ(json_object_get_string(root_object, "utf string"), "lorem ipsum"));
TEST(STREQ(json_object_get_string(root_object, "utf-8 string"), "あいうえお"));
TEST(STREQ(json_object_get_string(root_object, "surrogate string"), "lorem𝄞ipsum𝍧lorem"));
TEST(json_object_get_number(root_object, "positive one") == 1.0);
TEST(json_object_get_number(root_object, "negative one") == -1.0);
TEST(json_object_get_number(root_object, "hard to parse number") == -0.000314);
TEST(json_object_get_boolean(root_object, "boolean true") == 1);
TEST(json_object_get_boolean(root_object, "boolean false") == 0);
TEST(json_value_get_type(json_object_get_value(root_object, "null")) == JSONNull);
array = json_object_get_array(root_object, "string array");
if (array != NULL && json_array_get_count(array) > 1) {
TEST(STREQ(json_array_get_string(array, 0), "lorem"));
TEST(STREQ(json_array_get_string(array, 1), "ipsum"));
} else {
tests_failed++;
}
array = json_object_get_array(root_object, "x^2 array");
if (array != NULL) {
for (i = 0; i < json_array_get_count(array); i++) {
TEST(json_array_get_number(array, i) == (i * i));
}
} else {
tests_failed++;
}
TEST(json_object_get_array(root_object, "non existent array") == NULL);
TEST(STREQ(json_object_dotget_string(root_object, "object.nested string"), "str"));
TEST(json_object_dotget_boolean(root_object, "object.nested true") == 1);
TEST(json_object_dotget_boolean(root_object, "object.nested false") == 0);
TEST(json_object_dotget_value(root_object, "object.nested null") != NULL);
TEST(json_object_dotget_number(root_object, "object.nested number") == 123);
TEST(json_object_dotget_value(root_object, "should.be.null") == NULL);
TEST(json_object_dotget_value(root_object, "should.be.null.") == NULL);
TEST(json_object_dotget_value(root_object, ".") == NULL);
TEST(json_object_dotget_value(root_object, "") == NULL);
array = json_object_dotget_array(root_object, "object.nested array");
if (array != NULL && json_array_get_count(array) > 1) {
TEST(STREQ(json_array_get_string(array, 0), "lorem"));
TEST(STREQ(json_array_get_string(array, 1), "ipsum"));
} else {
tests_failed++;
}
TEST(json_object_dotget_boolean(root_object, "nested true"));
TEST(STREQ(json_object_get_string(root_object, "/**/"), "comment"));
TEST(STREQ(json_object_get_string(root_object, "//"), "comment"));
}
void print_commits_info(const char *username, const char *repo) {
JSON_Value *root_value;
JSON_Array *commits;
JSON_Object *commit;
size_t i;
char curl_command[512];
char cleanup_command[256];
char output_filename[] = "commits.json";
/* it ain't pretty, but it's not a libcurl tutorial */
sprintf(curl_command,
"curl -s \"https://api.github.com/repos/%s/%s/commits\" > %s",
username, repo, output_filename);
sprintf(cleanup_command, "rm -f %s", output_filename);
system(curl_command);
/* parsing json and validating output */
root_value = json_parse_file(output_filename);
if (json_value_get_type(root_value) != JSONArray) {
system(cleanup_command);
return;
}
/* getting array from root value and printing commit info */
commits = json_value_get_array(root_value);
printf("%-10.10s %-10.10s %s\n", "Date", "SHA", "Author");
for (i = 0; i < json_array_get_count(commits); i++) {
commit = json_array_get_object(commits, i);
printf("%.10s %.10s %s\n",
json_object_dotget_string(commit, "commit.author.date"),
json_object_get_string(commit, "sha"),
json_object_dotget_string(commit, "commit.author.name"));
}
/* cleanup code */
json_value_free(root_value);
system(cleanup_command);
}
gchar * jobdesc_m3u8streaming_push_server_uri (gchar *job)
{
JSON_Value *val;
JSON_Object *obj;
gchar *ret, *push_url;
val = json_parse_string_with_comments (job);
obj = json_value_get_object (val);
push_url = (gchar *)json_object_dotget_string (obj, "m3u8streaming.push-server-uri");
ret = g_strdup (push_url);
json_value_free (val);
return ret;
}
void do_network(JSON_Value* json, char* msg) {
if(json_value_get_type(json) == JSONObject) {
JSON_Object* obj = json_value_get_object(json);
if(strcmp(json_object_dotget_string(obj, "type"), "act.heating.central") == 0) {
if(json_object_dotget_value(obj, "msg.level") != 0) {
int heatingLevel = 9 - (int)json_object_dotget_number(obj, "msg.level");
printf("ACTING on cmd: %d\n", heatingLevel);
if(heatingLevel > 9) heatingLevel = 9;
if(heatingLevel < 0) heatingLevel = 0;
printf("Set level %d\n", heatingLevel);
serial_write("%d", heatingLevel);
}
}
}
}
int parse_SX1301_configuration(const char * conf_file) {
int i;
const char conf_obj[] = "SX1301_conf";
char param_name[32]; /* used to generate variable parameter names */
const char *str; /* used to store string value from JSON object */
struct lgw_conf_board_s boardconf;
struct lgw_conf_rxrf_s rfconf;
struct lgw_conf_rxif_s ifconf;
JSON_Value *root_val;
JSON_Object *root = NULL;
JSON_Object *conf = NULL;
JSON_Value *val;
uint32_t sf, bw;
/* try to parse JSON */
root_val = json_parse_file_with_comments(conf_file);
root = json_value_get_object(root_val);
if (root == NULL) {
MSG("ERROR: %s id not a valid JSON file\n", conf_file);
exit(EXIT_FAILURE);
}
conf = json_object_get_object(root, conf_obj);
if (conf == NULL) {
MSG("INFO: %s does not contain a JSON object named %s\n", conf_file, conf_obj);
return -1;
} else {
MSG("INFO: %s does contain a JSON object named %s, parsing SX1301 parameters\n", conf_file, conf_obj);
}
/* set board configuration */
memset(&boardconf, 0, sizeof boardconf); /* initialize configuration structure */
val = json_object_get_value(conf, "lorawan_public"); /* fetch value (if possible) */
if (json_value_get_type(val) == JSONBoolean) {
boardconf.lorawan_public = (bool)json_value_get_boolean(val);
} else {
MSG("WARNING: Data type for lorawan_public seems wrong, please check\n");
boardconf.lorawan_public = false;
}
val = json_object_get_value(conf, "clksrc"); /* fetch value (if possible) */
if (json_value_get_type(val) == JSONNumber) {
boardconf.clksrc = (uint8_t)json_value_get_number(val);
} else {
MSG("WARNING: Data type for clksrc seems wrong, please check\n");
boardconf.clksrc = 0;
}
MSG("INFO: lorawan_public %d, clksrc %d\n", boardconf.lorawan_public, boardconf.clksrc);
/* all parameters parsed, submitting configuration to the HAL */
if (lgw_board_setconf(boardconf) != LGW_HAL_SUCCESS) {
MSG("WARNING: Failed to configure board\n");
}
/* set configuration for RF chains */
for (i = 0; i < LGW_RF_CHAIN_NB; ++i) {
memset(&rfconf, 0, sizeof(rfconf)); /* initialize configuration structure */
sprintf(param_name, "radio_%i", i); /* compose parameter path inside JSON structure */
val = json_object_get_value(conf, param_name); /* fetch value (if possible) */
if (json_value_get_type(val) != JSONObject) {
MSG("INFO: no configuration for radio %i\n", i);
continue;
}
/* there is an object to configure that radio, let's parse it */
sprintf(param_name, "radio_%i.enable", i);
val = json_object_dotget_value(conf, param_name);
if (json_value_get_type(val) == JSONBoolean) {
rfconf.enable = (bool)json_value_get_boolean(val);
} else {
rfconf.enable = false;
}
if (rfconf.enable == false) { /* radio disabled, nothing else to parse */
MSG("INFO: radio %i disabled\n", i);
} else { /* radio enabled, will parse the other parameters */
snprintf(param_name, sizeof param_name, "radio_%i.freq", i);
rfconf.freq_hz = (uint32_t)json_object_dotget_number(conf, param_name);
snprintf(param_name, sizeof param_name, "radio_%i.rssi_offset", i);
rfconf.rssi_offset = (float)json_object_dotget_number(conf, param_name);
snprintf(param_name, sizeof param_name, "radio_%i.type", i);
str = json_object_dotget_string(conf, param_name);
if (!strncmp(str, "SX1255", 6)) {
rfconf.type = LGW_RADIO_TYPE_SX1255;
} else if (!strncmp(str, "SX1257", 6)) {
rfconf.type = LGW_RADIO_TYPE_SX1257;
} else {
MSG("WARNING: invalid radio type: %s (should be SX1255 or SX1257)\n", str);
}
snprintf(param_name, sizeof param_name, "radio_%i.tx_enable", i);
val = json_object_dotget_value(conf, param_name);
if (json_value_get_type(val) == JSONBoolean) {
rfconf.tx_enable = (bool)json_value_get_boolean(val);
} else {
rfconf.tx_enable = false;
}
MSG("INFO: radio %i enabled (type %s), center frequency %u, RSSI offset %f, tx enabled %d\n", i, str, rfconf.freq_hz, rfconf.rssi_offset, rfconf.tx_enable);
}
/* all parameters parsed, submitting configuration to the HAL */
if (lgw_rxrf_setconf(i, rfconf) != LGW_HAL_SUCCESS) {
MSG("WARNING: invalid configuration for radio %i\n", i);
}
}
/* set configuration for LoRa multi-SF channels (bandwidth cannot be set) */
for (i = 0; i < LGW_MULTI_NB; ++i) {
memset(&ifconf, 0, sizeof(ifconf)); /* initialize configuration structure */
sprintf(param_name, "chan_multiSF_%i", i); /* compose parameter path inside JSON structure */
val = json_object_get_value(conf, param_name); /* fetch value (if possible) */
if (json_value_get_type(val) != JSONObject) {
MSG("INFO: no configuration for LoRa multi-SF channel %i\n", i);
continue;
}
/* there is an object to configure that LoRa multi-SF channel, let's parse it */
sprintf(param_name, "chan_multiSF_%i.enable", i);
val = json_object_dotget_value(conf, param_name);
if (json_value_get_type(val) == JSONBoolean) {
ifconf.enable = (bool)json_value_get_boolean(val);
} else {
ifconf.enable = false;
}
if (ifconf.enable == false) { /* LoRa multi-SF channel disabled, nothing else to parse */
MSG("INFO: LoRa multi-SF channel %i disabled\n", i);
} else { /* LoRa multi-SF channel enabled, will parse the other parameters */
sprintf(param_name, "chan_multiSF_%i.radio", i);
ifconf.rf_chain = (uint32_t)json_object_dotget_number(conf, param_name);
sprintf(param_name, "chan_multiSF_%i.if", i);
ifconf.freq_hz = (int32_t)json_object_dotget_number(conf, param_name);
// TODO: handle individual SF enabling and disabling (spread_factor)
MSG("INFO: LoRa multi-SF channel %i enabled, radio %i selected, IF %i Hz, 125 kHz bandwidth, SF 7 to 12\n", i, ifconf.rf_chain, ifconf.freq_hz);
}
/* all parameters parsed, submitting configuration to the HAL */
if (lgw_rxif_setconf(i, ifconf) != LGW_HAL_SUCCESS) {
MSG("WARNING: invalid configuration for LoRa multi-SF channel %i\n", i);
}
}
/* set configuration for LoRa standard channel */
memset(&ifconf, 0, sizeof(ifconf)); /* initialize configuration structure */
val = json_object_get_value(conf, "chan_Lora_std"); /* fetch value (if possible) */
if (json_value_get_type(val) != JSONObject) {
MSG("INFO: no configuration for LoRa standard channel\n");
} else {
val = json_object_dotget_value(conf, "chan_Lora_std.enable");
if (json_value_get_type(val) == JSONBoolean) {
ifconf.enable = (bool)json_value_get_boolean(val);
} else {
ifconf.enable = false;
}
if (ifconf.enable == false) {
MSG("INFO: LoRa standard channel %i disabled\n", i);
} else {
ifconf.rf_chain = (uint32_t)json_object_dotget_number(conf, "chan_Lora_std.radio");
ifconf.freq_hz = (int32_t)json_object_dotget_number(conf, "chan_Lora_std.if");
bw = (uint32_t)json_object_dotget_number(conf, "chan_Lora_std.bandwidth");
switch(bw) {
case 500000: ifconf.bandwidth = BW_500KHZ; break;
case 250000: ifconf.bandwidth = BW_250KHZ; break;
case 125000: ifconf.bandwidth = BW_125KHZ; break;
default: ifconf.bandwidth = BW_UNDEFINED;
}
sf = (uint32_t)json_object_dotget_number(conf, "chan_Lora_std.spread_factor");
switch(sf) {
case 7: ifconf.datarate = DR_LORA_SF7; break;
case 8: ifconf.datarate = DR_LORA_SF8; break;
case 9: ifconf.datarate = DR_LORA_SF9; break;
case 10: ifconf.datarate = DR_LORA_SF10; break;
case 11: ifconf.datarate = DR_LORA_SF11; break;
case 12: ifconf.datarate = DR_LORA_SF12; break;
default: ifconf.datarate = DR_UNDEFINED;
}
MSG("INFO: LoRa standard channel enabled, radio %i selected, IF %i Hz, %u Hz bandwidth, SF %u\n", ifconf.rf_chain, ifconf.freq_hz, bw, sf);
}
if (lgw_rxif_setconf(8, ifconf) != LGW_HAL_SUCCESS) {
MSG("WARNING: invalid configuration for LoRa standard channel\n");
}
}
/* set configuration for FSK channel */
memset(&ifconf, 0, sizeof(ifconf)); /* initialize configuration structure */
val = json_object_get_value(conf, "chan_FSK"); /* fetch value (if possible) */
if (json_value_get_type(val) != JSONObject) {
MSG("INFO: no configuration for FSK channel\n");
} else {
val = json_object_dotget_value(conf, "chan_FSK.enable");
if (json_value_get_type(val) == JSONBoolean) {
ifconf.enable = (bool)json_value_get_boolean(val);
} else {
ifconf.enable = false;
}
if (ifconf.enable == false) {
MSG("INFO: FSK channel %i disabled\n", i);
} else {
ifconf.rf_chain = (uint32_t)json_object_dotget_number(conf, "chan_FSK.radio");
ifconf.freq_hz = (int32_t)json_object_dotget_number(conf, "chan_FSK.if");
bw = (uint32_t)json_object_dotget_number(conf, "chan_FSK.bandwidth");
if (bw <= 7800) ifconf.bandwidth = BW_7K8HZ;
else if (bw <= 15600) ifconf.bandwidth = BW_15K6HZ;
else if (bw <= 31200) ifconf.bandwidth = BW_31K2HZ;
else if (bw <= 62500) ifconf.bandwidth = BW_62K5HZ;
else if (bw <= 125000) ifconf.bandwidth = BW_125KHZ;
else if (bw <= 250000) ifconf.bandwidth = BW_250KHZ;
else if (bw <= 500000) ifconf.bandwidth = BW_500KHZ;
else ifconf.bandwidth = BW_UNDEFINED;
ifconf.datarate = (uint32_t)json_object_dotget_number(conf, "chan_FSK.datarate");
MSG("INFO: FSK channel enabled, radio %i selected, IF %i Hz, %u Hz bandwidth, %u bps datarate\n", ifconf.rf_chain, ifconf.freq_hz, bw, ifconf.datarate);
}
if (lgw_rxif_setconf(9, ifconf) != LGW_HAL_SUCCESS) {
MSG("WARNING: invalid configuration for FSK channel\n");
}
}
json_value_free(root_val);
return 0;
}
void APP2_Tasks ( void )
{
/* Update the application state machine based
* on the current state */
switch(app2Data.state)
{
case APP2_STATE_INIT:
/* Open the device layer */
app2Data.deviceHandle = USB_DEVICE_Open( USB_DEVICE_INDEX_0, DRV_IO_INTENT_READWRITE );
if(app2Data.deviceHandle != USB_DEVICE_HANDLE_INVALID)
{
/* Register a callback with device layer to get event notification (for end point 0) */
USB_DEVICE_EventHandlerSet(app2Data.deviceHandle, APP_USBDeviceEventHandler, 0);
app2Data.state = APP2_STATE_WAIT_FOR_CONFIGURATION;
}
else
{
/* The Device Layer is not ready to be opened. We should try
* again later. */
}
break;
case APP2_STATE_WAIT_FOR_CONFIGURATION:
/* Check if the device was configured */
if(app2Data.isConfigured)
{
app2Data.state = APP2_STATE_SCHEDULE_READ;
}
break;
case APP2_STATE_SCHEDULE_READ:
if(APP_StateReset())
{
break;
}
/* If a read is complete, then schedule a read
* else wait for the current read to complete */
app2Data.state = APP2_STATE_WAIT_FOR_READ_COMPLETE;
if(app2Data.isReadComplete == true)
{
app2Data.isReadComplete = false;
app2Data.readTransferHandle = USB_DEVICE_CDC_TRANSFER_HANDLE_INVALID;
USB_DEVICE_CDC_Read (USB_DEVICE_CDC_INDEX_0,
&app2Data.readTransferHandle, app2Data.readBuffer,
APP_READ_BUFFER_SIZE);
if(app2Data.readTransferHandle == USB_DEVICE_CDC_TRANSFER_HANDLE_INVALID)
{
app2Data.state = APP2_STATE_ERROR;
break;
}
}
break;
case APP2_STATE_WAIT_FOR_READ_COMPLETE:
if(APP_StateReset())
{
break;
}
if(app2Data.isReadComplete == true)
{
// Check for delimiter
int res = APP_CheckForMessage(app2Data.readBuffer);
if(res == MESSAGE_BAD_POINTER)
{
// Do something
break;
}
else if(res == MESSAGE_NO_DELIMITER)
{
strcat(messageBuffer, app2Data.readBuffer);
memset(app2Data.readBuffer, '\0', APP_READ_BUFFER_SIZE);
app2Data.state = APP2_STATE_SCHEDULE_READ;
break;
}
strcat(messageBuffer, app2Data.readBuffer);
// Parse for the command being sent so we can handle it
int command = APP_ParseCommand(messageBuffer);
// Lets build our response message
// First initialize the JSON value and object from parson library
JSON_Value *rootValue = json_value_init_object();
JSON_Object *rootObject = json_value_get_object(rootValue);
char *serializedString = NULL;
// Build response and handle the command
switch(command)
{
// If hello command, respond with discovery packet
case COMMAND_HELLO:
json_object_dotset_string(rootObject, "message.command", "discovery");
json_object_dotset_string(rootObject, "message.discovery_object.title", APP_TITLE);
json_object_dotset_string(rootObject, "message.discovery_object.part_number", APP_PART_NUMBER);
json_object_dotset_string(rootObject, "message.discovery_object.mac_address", appData.macAddress);
json_object_dotset_string(rootObject, "message.discovery_object.firmware_version", APP_FIRMWARE_VERSION);
json_object_dotset_string(rootObject, "message.discovery_object.harmony_version", SYS_VERSION_STR);
json_object_dotset_boolean(rootObject, "message.discovery_object.is_commissioned", appData.isCommissioned);
break;
// If configuration command, respond with ACK/NACK
case COMMAND_CONFIGURE:
{
if(appData.isCommissioned == false)
{
JSON_Value *messageRoot = json_parse_string(messageBuffer);
if(json_value_get_type(messageRoot) != JSONObject)
{
BuildAckNackMessage(rootObject, "nack", "Invalid JSON Object");
break;
}
else
{
JSON_Object *messageObject = json_value_get_object(messageRoot);
if( json_object_dotget_string(messageObject, "message.configuration_object.aws_iot_endpoint_address") != NULL &&
json_object_dotget_string(messageObject, "message.configuration_object.aws_certificate") != NULL &&
json_object_dotget_string(messageObject, "message.configuration_object.aws_certificate_private_key") != NULL )
{
json_object_dotset_string(rootObject, "message.command", "ack");
json_object_dotset_string(rootObject, "message.ack_nack_message", "Writing commission parameters to flash");
sprintf((char *)appData.host, json_object_dotget_string(messageObject, "message.configuration_object.aws_iot_endpoint_address"));
sprintf((char *)appData.clientCert, json_object_dotget_string(messageObject, "message.configuration_object.aws_certificate"));
sprintf((char *)appData.clientKey, json_object_dotget_string(messageObject, "message.configuration_object.aws_certificate_private_key"));
appData.isCommissioned = true;
appData.writeToNVM = true;
}
else
{
BuildAckNackMessage(rootObject, "nack", "Invalid commission parameters");
break;
}
}
}
else
{
BuildAckNackMessage(rootObject, "nack", "Already commissioned");
}
break;
}
case COMMAND_DEBUG_SET:
{
JSON_Value *messageRoot = json_parse_string(messageBuffer);
if(json_value_get_type(messageRoot) != JSONObject)
{
BuildAckNackMessage(rootObject, "nack", "Invalid JSON Object");
break;
}
JSON_Object *messageObject = json_value_get_object(messageRoot);
if(messageObject == NULL)
{
BuildAckNackMessage(rootObject, "nack", "NULL Pointer");
break;
}
BuildAckNackMessage(rootObject, "ack", "Received debug set");
int DebugMessage = DEBUG_UPDATE;
xQueueSendToFront(app2Data.debugQueue, &DebugMessage, 1);
if(json_object_dotget_boolean(messageObject, "message.debug_set_object.set"))
appData.debugSet = true;
else
appData.debugSet = false;
break;
}
case COMMAND_BAD_JSON:
BuildAckNackMessage(rootObject, "nack", "Bad JSON");
break;
case COMMAND_INVALID:
BuildAckNackMessage(rootObject, "nack", "Command Invalid");
break;
default:
BuildAckNackMessage(rootObject, "nack", "Something went wrong");
break;
}
memset(app2Data.writeBuffer, '\0', APP_WRITE_BUFFER_SIZE);
// With our response built, serialize the response into a string
serializedString = json_serialize_to_string(rootValue);
strcpy(app2Data.writeBuffer, serializedString);
// Find length of string and add delimiter to end
app2Data.writeBuffer[strlen(app2Data.writeBuffer)] = '\r';
json_free_serialized_string(serializedString);
// Reset string buffers
memset(app2Data.readBuffer, '\0', APP_READ_BUFFER_SIZE);
memset(messageBuffer, '\0', APP_MESSAGE_BUFFER_SIZE);
app2Data.state = APP2_STATE_SCHEDULE_WRITE;
}
else
{
app2Data.state = APP2_STATE_WAIT_FOR_READ_COMPLETE;
if( uxQueueMessagesWaiting( app2Data.debugQueue ) > 0 )
{
int debugMessageNumber;
xQueueReceive( app2Data.debugQueue, &debugMessageNumber, 1 );
sprintf(app2Data.writeBuffer,
"{"
"\"message\":{"
"\"command\":\"debug\","
"\"debug_object\":{"
"\"board_ip_address\":\"%d.%d.%d.%d\","
"\"aws_iot_endpoint\":\"%s\","
"\"mac_address\":\"%s\","
"\"socket_connected\":%s,"
"\"mqtt_connected\":%s,"
"\"raw_message\":\"%s\""
"}}}\r",
appData.board_ipAddr.v4Add.v[0],
appData.board_ipAddr.v4Add.v[1],
appData.board_ipAddr.v4Add.v[2],
appData.board_ipAddr.v4Add.v[3],
appData.host,
appData.macAddress,
(appData.socket_connected ? "true" : "false"),
(appData.mqtt_connected ? "true" : "false"),
APP_ReturnDebugCodeToString(debugMessageNumber));
app2Data.state = APP2_STATE_SCHEDULE_DEBUG_WRITE;
}
}
break;
case APP2_STATE_SCHEDULE_WRITE:
if(APP_StateReset())
{
break;
}
app2Data.writeTransferHandle = USB_DEVICE_CDC_TRANSFER_HANDLE_INVALID;
app2Data.isWriteComplete = false;
app2Data.state = APP2_STATE_WAIT_FOR_WRITE_COMPLETE;
USB_DEVICE_CDC_Write(USB_DEVICE_CDC_INDEX_0,
&app2Data.writeTransferHandle, app2Data.writeBuffer, strlen(app2Data.writeBuffer),
USB_DEVICE_CDC_TRANSFER_FLAGS_DATA_COMPLETE);
break;
case APP2_STATE_WAIT_FOR_WRITE_COMPLETE:
if(APP_StateReset())
{
break;
}
/* Check if message sent. The isWriteComplete
* flag gets updated in the CDC event handler */
if(app2Data.isWriteComplete == true)
{
app2Data.state = APP2_STATE_SCHEDULE_READ;
}
break;
case APP2_STATE_SCHEDULE_DEBUG_WRITE:
if(APP_StateReset())
{
break;
}
app2Data.writeTransferHandle = USB_DEVICE_CDC_TRANSFER_HANDLE_INVALID;
app2Data.isWriteComplete = false;
app2Data.state = APP2_STATE_WAIT_FOR_DEBUG_WRITE_COMPLETE;
USB_DEVICE_CDC_Write(USB_DEVICE_CDC_INDEX_0,
&app2Data.writeTransferHandle, app2Data.writeBuffer, strlen(app2Data.writeBuffer),
USB_DEVICE_CDC_TRANSFER_FLAGS_DATA_COMPLETE);
break;
case APP2_STATE_WAIT_FOR_DEBUG_WRITE_COMPLETE:
if(APP_StateReset())
{
break;
}
/* Check if message sent. The isWriteComplete
* flag gets updated in the CDC event handler */
if(app2Data.isWriteComplete == true)
{
app2Data.state = APP2_STATE_WAIT_FOR_READ_COMPLETE;
}
break;
case APP2_STATE_ERROR:
break;
default:
break;
}
}
int main(int argc, char** argv) {
printf("haltestelle built <%s %s> version %s\n", __DATE__, __TIME__, VERSION);
if(argc < 5) {
fprintf(stderr, "usage: %s <designation> <busfarhn_host> <busfarhn_port> <serialport>\n", argv[0]);
exit(-1);
}
/*global*/ designation = argv[1];
/*global*/ busfarhn_host = argv[2];
/*global*/ busfarhn_port = atoi(argv[3]);
char* serialport = argv[4];
/*global*/ sockfd = start_socket();
if(connect_to_busfarhn(designation) != 0) {
fprintf(stderr, "[ERROR] connecting to %s:%d failed\n", busfarhn_host, busfarhn_port);
return -1;
}
#ifdef USE_SERIAL
#ifdef SERIAL_IS_A_FILE
printf("%s is a FILE\n", serialport);
#elif defined SERIAL_IS_A_ATH0
printf("%s is a SERIAL PORT (ATH style)\n", serialport);
#else
printf("%s is a SERIAL PORT\n", serialport);
#endif
#else
printf("WARNING: NOT USING THE SERIAL PORT\n");
#endif
printf("[STARTUP] connected to %s:%i with designation %s\n", busfarhn_host, busfarhn_port, designation);
#ifdef USE_SERIAL
#ifdef SERIAL_IS_A_FILE
/*global*/ serialfd = fopen(serialport, "rw");
#elif defined SERIAL_IS_A_ATH0
/*global*/ serialfd = open(serialport, O_RDWR);
#else
/*global*/ serialfd = open(serialport, O_RDWR | O_NOCTTY | O_SYNC);
#endif
if (serialfd < 0) {
fprintf(stderr, "error %d opening %s: %s", errno, serialport, strerror (errno));
return;
}
#if !(defined SERIAL_IS_A_FILE || defined SERIAL_IS_A_ATH0)
set_interface_attribs (serialfd, SERIAL_BAUDRATE, 0); // set speed to 115,200 bps, 8n1 (no parity)
set_blocking (serialfd, 0); // set no blocking
#endif
#endif
hs_startup();
char netbuf[MAXBUFLEN];
unsigned int netbufpos = 0;
struct sockaddr_storage their_addr;
socklen_t addr_len;
#ifdef USE_SERIAL
pthread_t pth;
pthread_create(&pth, NULL, thread_read_serial, NULL);
#endif
while(1) {
// network
int numbytes;
addr_len = sizeof their_addr;
if ((numbytes = recvfrom(sockfd, (netbuf + netbufpos), MAXBUFLEN - (netbufpos + 1), MSG_DONTWAIT, (struct sockaddr *)&their_addr, &addr_len)) > 0) {
printf("[NET] received %i bytes\n", numbytes);
int i = 0;
for(i = 0; i < numbytes; i++) if(netbuf[netbufpos + i] == '\n') break;
netbufpos += numbytes;
if(i < numbytes) {
// found breakline
netbuf[netbufpos - 1] = '\0';
netbufpos = 0;
printf("CMD <%s>\n", netbuf);
JSON_Value* json = json_parse_string(netbuf);
if(json_value_get_type(json) == JSONObject) {
JSON_Object* obj = json_value_get_object(json);
const char* msgtype = json_object_dotget_string(obj, "type");
if(strcmp(msgtype, "io.tcp.ping") == 0) do_ping();
else do_network(json, netbuf);
}
json_value_free(json);
}
if(netbufpos + 1 == MAXBUFLEN) {
printf("[NET] ERROR: received %i bytes and still no breakline. Discarding the message.\n", MAXBUFLEN);
netbufpos = 0;
}
} else if(numbytes == 0) {
break;
}
}
hs_shutdown();
close(sockfd);
return 0;
}
int config_parse(const char *file, config_t *config)
{
JSON_Value *jvroot;
JSON_Object *joroot;
JSON_Object *jomaccmd;
JSON_Array *jarray;
JSON_Value_Type jtype;
const char *string;
int ret;
int i;
if(file == NULL){
return -1;
}
/** Clear all flags */
config_free(config);
printf("Start parsing configuration file....\n\n");
/* parsing json and validating output */
jvroot = json_parse_file_with_comments(file);
jtype = json_value_get_type(jvroot);
if (jtype != JSONObject) {
return -1;
}
joroot = json_value_get_object(jvroot);
string = json_object_get_string(joroot, "band");
if(string == NULL){
config->band = LW_BAND_EU868;
}else{
for(i=0; i<LW_BAND_MAX_NUM; i++){
if(0 == strcmp(string, config_band_tab[i])){
config->band = (lw_band_t)i;
break;
}
}
if(i==LW_BAND_MAX_NUM){
config->band = LW_BAND_EU868;
}
}
string = json_object_dotget_string(joroot, "key.nwkskey");
if(string != NULL){
if(str2hex(string, config->nwkskey, 16) == 16){
config->flag |= CFLAG_NWKSKEY;
}
}
string = json_object_dotget_string(joroot, "key.appskey");
if(string != NULL){
if(str2hex(string, config->appskey, 16) == 16){
config->flag |= CFLAG_APPSKEY;
}
}
string = json_object_dotget_string(joroot, "key.appkey");
if(string != NULL){
if(str2hex(string, config->appkey, 16) == 16){
config->flag |= CFLAG_APPKEY;
}
}
ret = json_object_dotget_boolean(joroot, "join.key");
if(ret==0){
//printf("Join key false\n");
config->joinkey = false;
}else if(ret==1){
//printf("Join key true\n");
config->joinkey = true;
}else{
//printf("Unknown join key value\n");
config->joinkey = false;
}
string = json_object_dotget_string(joroot, "join.request");
if(string != NULL){
uint8_t tmp[255];
int len;
len = str2hex(string, tmp, 255);
if(len>0){
config->flag |= CFLAG_JOINR;
config->joinr = malloc(len);
if(config->joinr == NULL){
return -2;
}
config->joinr_size = len;
memcpy(config->joinr, tmp, config->joinr_size);
}
}
string = json_object_dotget_string(joroot, "join.accept");
if(string != NULL){
uint8_t tmp[255];
int len;
len = str2hex(string, tmp, 255);
if(len>0){
config->flag |= CFLAG_JOINA;
config->joina = malloc(len);
if(config->joina == NULL){
return -3;
}
config->joina_size = len;
memcpy(config->joina, tmp, config->joina_size);
}
}
jarray = json_object_get_array(joroot, "messages");
if(jarray != NULL){
uint8_t tmp[255];
for (i = 0; i < json_array_get_count(jarray); i++) {
string = json_array_get_string(jarray, i);
if(string!=NULL){
int len = str2hex(string, tmp, 255);
if(len>0){
message_t *pl = malloc(sizeof(message_t));
memset(pl, 0, sizeof(message_t));
if(pl == NULL){
return -3;
}
pl->buf = malloc(len);
if(pl->buf == NULL){
return -3;
}
pl->len = len;
memcpy(pl->buf, tmp, pl->len);
pl_insert(&config->message, pl);
}else{
printf("Messages[%d] \"%s\" is not hex string\n", i, string);
}
}else{
printf("Messages item %d is not string\n", i);
}
}
}else{
printf("Can't get payload array\n");
}
jarray = json_object_get_array(joroot, "maccommands");
if(jarray != NULL){
uint8_t mhdr;
int len;
uint8_t tmp[255];
for (i = 0; i < json_array_get_count(jarray); i++) {
jomaccmd = json_array_get_object(jarray, i);
string = json_object_get_string(jomaccmd, "MHDR");
if(string != NULL){
len = str2hex(string, &mhdr, 1);
if(len != 1){
printf("\"maccommands\"[%d].MHDR \"%s\" must be 1 byte hex string\n", i, string);
continue;
}
}else{
string = json_object_get_string(jomaccmd, "direction");
if(string != NULL){
int j;
len = strlen(string);
if(len>200){
printf("\"maccommands\"[%d].direction \"%s\" too long\n", i, string);
continue;
}
for(j=0; j<len; j++){
tmp[j] = tolower(string[j]);
}
tmp[j] = '\0';
if(0==strcmp((char *)tmp, "up")){
mhdr = 0x80;
}else if(0==strcmp((char *)tmp, "down")){
mhdr = 0xA0;
}else{
printf("\"maccommands\"[%d].MHDR \"%s\" must be 1 byte hex string\n", i, string);
continue;
}
}else{
printf("Can't recognize maccommand direction\n");
continue;
}
}
string = json_object_get_string(jomaccmd, "command");
if(string != NULL){
len = str2hex(string, tmp, 255);
if(len <= 0){
printf("\"maccommands\"[%d].command \"%s\" is not hex string\n", i, string);
continue;
}
}else{
printf("c\"maccommands\"[%d].command is not string\n", i);
continue;
}
message_t *pl = malloc(sizeof(message_t));
memset(pl, 0, sizeof(message_t));
if(pl == NULL){
return -3;
}
pl->buf = malloc(len+1);
if(pl->buf == NULL){
return -3;
}
pl->len = len+1;
pl->buf[0] = mhdr;
pl->next = 0;
memcpy(pl->buf+1, tmp, pl->len-1);
pl_insert(&config->maccmd, pl);
}
}
print_spliter();
printf("%15s %s\n","BAND:\t", config_band_tab[LW_BAND_EU868]);
printf("%15s","NWKSKEY:\t");
putlen(16);
puthbuf(config->nwkskey, 16);
printf("\n");
printf("%15s","APPSKEY:\t");
putlen(16);
puthbuf(config->appskey, 16);
printf("\n");
printf("%15s","APPKEY:\t");
putlen(16);
puthbuf(config->appkey, 16);
printf("\n");
printf("%15s","JOINR:\t");
putlen(config->joinr_size);
puthbuf(config->joinr, config->joinr_size );
printf("\n");
printf("%15s","JOINA:\t");
putlen(config->joina_size);
puthbuf(config->joina, config->joina_size );
printf("\n");
pl_print(config->message);
maccmd_print(config->maccmd);
json_value_free(jvroot);
return 0;
}