Skip to content

GitLab

Commit 2d10ca70 authored by Vladislav Rykov's avatar Vladislav Rykov
Browse files

gateway app_key + db tables

parent e4db38a9
Show whitespace changes
Inline Side-by-side
gateway
View file @ 2d10ca70
No preview for this file type
gateway_protocol @ 7a7face2
Compare e1e8ab40...7a7face2
Subproject commit e1e8ab40b6c7fdfa5d1628fbcc067c907f676ee3
Subproject commit 7a7face29165cc7668386edf869011c2a3d6eb4c
postgre/gateway_db.sql
View file @ 2d10ca70
......@@ -4,7 +4,7 @@ CREATE DATABASE gateway;
\c gateway
ALTER DATABASE gateway OWNER TO root;
ALTER DATABASE gateway OWNER TO pi;
CREATE TABLE esp32 (
utc numeric(10,0),
......@@ -38,7 +38,7 @@ CREATE TABLE esp32 (
);
ALTER TABLE esp32 OWNER TO root;
ALTER TABLE esp32 OWNER TO pi;
--
-- Name: pend_msgs; Type: TABLE; Schema: public; Owner: root
......@@ -50,7 +50,7 @@ CREATE TABLE pend_msgs (
);
ALTER TABLE pend_msgs OWNER TO root;
ALTER TABLE pend_msgs OWNER TO pi;
src/gateway.c
View file @ 2d10ca70
......@@ -6,7 +6,7 @@
#include<unistd.h>
#include<stdint.h>
#include<pthread.h>
#include<gateway_protocol.h>
#include"gateway_protocol.h"
#include<sys/time.h>
#include<libpq-fe.h>
#include"base64.h"
......@@ -51,6 +51,7 @@ typedef struct {
} sensor_data_t;
typedef struct {
uint8_t app_key[GATEWAY_PROTOCOL_APP_KEY_SIZE +1];
uint8_t dev_id;
int server_desc;
int client_desc;
......@@ -67,19 +68,21 @@ uint8_t gateway_protocol_data_send_payload_decode(sensor_data_t *sensor_data, co
void prepare_di_query(sensor_data_t *sensor_data, char *q, uint16_t q_size); // data insert
void filter_query(char *com);
void packet_encode(
uint8_t dev_id,
gateway_protocol_packet_type_t p_type,
uint8_t payload_length,
uint8_t *payload,
const uint8_t *app_key,
const uint8_t dev_id,
const gateway_protocol_packet_type_t p_type,
const uint8_t payload_length,
const uint8_t *payload,
uint8_t *packet_length,
uint8_t *packet);
uint8_t packet_decode(
uint8_t *app_key,
uint8_t *dev_id,
gateway_protocol_packet_type_t *ptype,
uint8_t *payload_length,
uint8_t *payload,
uint8_t packet_length,
uint8_t *packet);
const uint8_t packet_length,
const uint8_t *packet);
void gateway_protocol_mk_stat(
gcom_ch_t *gch,
......@@ -102,7 +105,7 @@ int main (int argc, char **argv) {
signal(SIGINT, ctrc_handler);
PGconn *conn = PQconnectdb("user=root dbname=gateway");
PGconn *conn = PQconnectdb("user=pi dbname=gateway");
if (PQstatus(conn) == CONNECTION_BAD) {
printf("connection to db error: %s\n", PQerrorMessage(conn));
return EXIT_FAILURE;
......@@ -131,7 +134,8 @@ int main (int argc, char **argv) {
recv_gcom_ch(&gch, buf, &buf_len, 1024);
if (gateway_protocol_packet_decode(
if (packet_decode(
gch.app_key,
&gch.dev_id,
&packet_type,
&payload_length, payload,
......@@ -144,7 +148,7 @@ int main (int argc, char **argv) {
sensor_data_t sensor_data;
printf("DATA SEND received\n");
if (gateway_protocol_data_send_payload_decode(&sensor_data, payload, payload_length)) {
prepare_di_query(&sensor_data, buf, sizeof(buf));
prepare_di_query(&gch, &sensor_data, buf, sizeof(buf));
filter_query(buf);
printf("%s\n", buf);
res = PQexec(conn, buf);
......@@ -183,7 +187,8 @@ int main (int argc, char **argv) {
fprintf(stderr, "payload decode error\n");
}
} else if (packet_type == GATEWAY_PROTOCOL_PACKET_TYPE_PEND_REQ) {
sprintf(buf, "SELECT * FROM pend_msgs WHERE dev_id = %d", gch.dev_id);
sprintf(buf, "SELECT * FROM pend_msgs WHERE app_key = %s AND dev_id = %d",
(char *)gch.app_key, gch.dev_id);
res = PQexec(conn, buf);
if (PQresultStatus(res) == PGRES_TUPLES_OK && PQntuples(res)) {
char msg_cont[150];
......@@ -193,13 +198,14 @@ int main (int argc, char **argv) {
base64_decode(PQgetvalue(res, 0, 1), strlen(PQgetvalue(res, 0, 1)), payload);
payload_length = BASE64_DECODE_OUT_SIZE(strlen(PQgetvalue(res, 0, 1)));
PQclear(res);
printf("prepared to send %d bytes\n", payload_length);
printf("prepared to send %d bytes : %s\n", payload_length, (char *)payload);
// send the msg until ack is received
uint8_t received_ack = 0;
uint8_t pend_send_retries = PEND_SEND_RETRIES_MAX;
do {
packet_encode(
gch.app_key,
gch.dev_id,
GATEWAY_PROTOCOL_PACKET_TYPE_PEND_SEND,
payload_length, payload,
......@@ -208,17 +214,22 @@ int main (int argc, char **argv) {
send_gcom_ch(&gch, buf, buf_len);
recv_gcom_ch(&gch, buf, &buf_len, 1024);
uint8_t recv_app_key[GATEWAY_PROTOCOL_APP_KEY_SIZE];
uint8_t recv_dev_id = 0xFF;
if (packet_decode(
&gch.dev_id,
recv_app_key,
&recv_dev_id,
&packet_type,
&buf_len, buf,
buf_len, buf))
{
if (packet_type == GATEWAY_PROTOCOL_PACKET_TYPE_STAT &&
if (!memcpy(recv_app_key, gch.app_key, GATEWAY_PROTOCOL_APP_KEY_SIZE) &&
recv_dev_id == gch.dev_id &&
packet_type == GATEWAY_PROTOCOL_PACKET_TYPE_STAT &&
buf_len == 1 &&
buf[0] == GATEWAY_PROTOCOL_STAT_ACK)
{
sprintf(buf, "DELETE FROM pend_msgs WHERE dev_id = %d AND msg = '%s'", gch.dev_id, msg_cont);
sprintf(buf, "DELETE FROM pend_msgs WHERE app_key = %s AND dev_id = %d AND msg = '%s'", (char *)gch.app_key, gch.dev_id, msg_cont);
printf("%s", buf);
res = PQexec(conn, buf);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
......@@ -345,14 +356,15 @@ uint8_t gateway_protocol_data_send_payload_decode(
memcpy(&sensor_data->hh10d_wis, &payload[p_len], sizeof(sensor_data->hh10d_wis));
p_len += sizeof(sensor_data->hh10d_wis);
//printf("p_len = %d, payload_length = %d\n", p_len, payload_length);
printf("p_len = %d, payload_length = %d\n", p_len, payload_length);
return (p_len == payload_length);
}
void prepare_di_query(sensor_data_t *sensor_data, char *q, uint16_t q_size) {
snprintf(q, q_size, "INSERT INTO esp32 ("
void prepare_di_query(gcom_ch_t *gch, sensor_data_t *sensor_data, char *q, uint16_t q_size) {
snprintf(q, q_size,
"INSERT INTO dev_%s_%d ("
"utc, timedate, "
"dht22_t_esp, dht22_h_esp, "
"sht85_t_esp, sht85_h_esp, "
......@@ -386,6 +398,7 @@ void prepare_di_query(sensor_data_t *sensor_data, char *q, uint16_t q_size) {
"%.2f, %.2f, "
"%.2f, "
"%.2f)",
(char *)gch->app_key, gch->dev_id,
sensor_data->utc, sensor_data->timedate,
sensor_data->dht22_t_esp, sensor_data->dht22_h_esp,
sensor_data->sht85_t_esp, sensor_data->sht85_h_esp,
......@@ -403,7 +416,6 @@ void prepare_di_query(sensor_data_t *sensor_data, char *q, uint16_t q_size) {
sensor_data->tmp102_wis,
sensor_data->hh10d_wis
);
}
void filter_query(char *q) {
......@@ -421,15 +433,19 @@ void filter_query(char *q) {
void packet_encode(
uint8_t dev_id,
gateway_protocol_packet_type_t p_type,
uint8_t payload_length,
uint8_t *payload,
const uint8_t *app_key,
const uint8_t dev_id,
const gateway_protocol_packet_type_t p_type,
const uint8_t payload_length,
const uint8_t *payload,
uint8_t *packet_length,
uint8_t *packet)
{
*packet_length = 0;
memcpy(&packet[*packet_length], app_key, GATEWAY_PROTOCOL_APP_KEY_SIZE);
*packet_length += GATEWAY_PROTOCOL_APP_KEY_SIZE;
packet[*packet_length] = dev_id;
(*packet_length)++;
......@@ -444,15 +460,19 @@ void packet_encode(
}
uint8_t packet_decode(
uint8_t *app_key,
uint8_t *dev_id,
gateway_protocol_packet_type_t *ptype,
uint8_t *payload_length,
uint8_t *payload,
uint8_t packet_length,
uint8_t *packet)
const uint8_t packet_length,
const uint8_t *packet)
{
uint8_t p_len = 0;
memcpy(app_key, &packet[p_len], GATEWAY_PROTOCOL_APP_KEY_SIZE);
p_len += GATEWAY_PROTOCOL_APP_KEY_SIZE;
*dev_id = packet[p_len];
p_len++;
......@@ -474,11 +494,12 @@ void gateway_protocol_mk_stat(
uint8_t *pck,
uint8_t *pck_len)
{
pck[0] = gch->dev_id;
pck[1] = GATEWAY_PROTOCOL_PACKET_TYPE_STAT;
pck[2] = 1;
pck[3] = stat;
*pck_len = 4;
packet_encode(
gch->app_key,
gch->dev_id,
GATEWAY_PROTOCOL_PACKET_TYPE_STAT,
1, &stat,
pck_len, pck);
}
......@@ -491,6 +512,7 @@ void send_utc(gcom_ch_t *gch) {
gettimeofday(&tv, NULL);
packet_encode (
gch->app_key,
gch->dev_id,
GATEWAY_PROTOCOL_PACKET_TYPE_TIME_SEND,
sizeof(tv.tv_sec), (uint8_t *)&tv.tv_sec,
......
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment