void applet_send_query(m2session* session) {
/// The C-API for building commands can be bypassed in favor of directly
/// putting data to the queue. That way is more efficient, but it also requires
/// you to know more about DASH7 than just what order the templates should be.
///
/// The query that we build will collect sensor configuration data back from
/// all devices that support the sensor protocol. Much more interesting queries
/// are possible.
ot_u8 status;
{ //open request for single hop anycast query
routing_tmpl routing;
routing.hop_code = 0;
otapi_open_request(ADDR_anycast, &routing);
}
{ //use a command template for collection of single file from single file search
command_tmpl command;
command.opcode = (ot_u8)CMD_udp_on_file;
command.type = (ot_u8)CMDTYPE_na2p_request;
command.extension = (ot_u8)CMDEXT_none;
otapi_put_command_tmpl(&status, &command);
}
{ //write the dialog information (timeout, channels to use)
dialog_tmpl dialog;
dialog.channels = 0; //use same channel as request for response
dialog.timeout = 0x41; //same as otutils_encode_timeout(512) -- 512 tick response slot
otapi_put_dialog_tmpl(&status, &dialog);
}
{ //write the query to search for the sensor protocol id
static const ot_u8 query_str[10] = "APP=PongLT";
query_tmpl query;
query.code = M2QC_COR_SEARCH + 10; // do a 100% length=10 correlation search
query.mask = NULL; // don't do any masking (no partial matching)
query.length = 10; // query_str is 10 bytes
query.value = (ot_u8*)query_str;
otapi_put_query_tmpl(&status, &query);
}
{ //put in the information of the file to search (the user id)
isfcomp_tmpl isfcomp;
isfcomp.is_series = False;
isfcomp.isf_id = ISF_ID(user_id);
isfcomp.offset = 0;
otapi_put_isf_comp(&status, &isfcomp);
}
{ //put in UDP ports (from 254 to 255) and Ping ID
q_writebyte(&txq, 254);
q_writebyte(&txq, 255);
q_writeshort(&txq, app.pingval);
}
//Done building command, close the request and send the dialog
otapi_close_request();
}
void applet_send_query(m2session* session) {
/// The C-API for building commands can be bypassed in favor of directly
/// putting data to the queue. That way is more efficient, but it also requires
/// you to know more about DASH7 than just what order the templates should be.
///
/// The query that we build will collect sensor configuration data back from
/// all devices that support the sensor protocol. Much more interesting queries
/// are possible.
{ //open request for single hop anycast query
routing_tmpl routing;
routing.hop_code = 0;
otapi_open_request(ADDR_anycast, &routing);
}
{ //use a command template for collection of single file from single file search
ot_u8 status;
command_tmpl command;
command.opcode = (ot_u8)CMD_collect_file_on_file;
command.type = (ot_u8)CMDTYPE_na2p_request;
command.extension = (ot_u8)CMDEXT_none;
otapi_put_command_tmpl(&status, &command);
}
{ //write the dialog information (timeout, channels to use)
ot_u8 status;
dialog_tmpl dialog;
dialog.channels = 0; //use same channel as request for response
dialog.timeout = 512; //512 tick response timeout (1 tick = 0,977 ms)
otapi_put_dialog_tmpl(&status, &dialog);
}
{ //write the query to search for the sensor protocol id
query_tmpl query;
ot_u8 status;
ot_u8 protocol_id;
protocol_id = 0x02; // sensor protocol id = 0x02
query.code = M2QC_COR_SEARCH | 1; // do a 100% length=1 correlation search
query.mask = NULL; // don't do any masking (no partial matching)
query.length = 1; // look for one byte (0x02)
query.value = &protocol_id; // (query.value is a string)
otapi_put_query_tmpl(&status, &query);
}
{ //put in the information of the file to search (the protocol list)
ot_u8 status;
isfcomp_tmpl isfcomp;
isfcomp.is_series = False;
isfcomp.isf_id = ISF_ID(protocol_list);
isfcomp.offset = 0;
otapi_put_isf_comp(&status, &isfcomp);
}
{ //put in the information of the file to return (the sensor list)
ot_u8 status;
isfcall_tmpl isfcall;
isfcall.is_series = False;
isfcall.isf_id = ISF_ID(sensor_list);
isfcall.max_return = 32;
isfcall.offset = 0;
otapi_put_isf_call(&status, &isfcall);
}
//Done building command, close the request and send the dialog
otapi_close_request();
}
