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1 /** |
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2 * @file nodes.c |
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3 * @brief Handle nodes status |
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4 * @author Michiel Broek <mbroek at mbse dot eu> |
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5 * |
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6 * Copyright (C) 2018 |
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7 * |
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8 * This file is part of the bms (Brewery Management System) |
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9 * |
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10 * This is free software; you can redistribute it and/or modify it |
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11 * under the terms of the GNU General Public License as published by the |
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12 * Free Software Foundation; either version 2, or (at your option) any |
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13 * later version. |
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14 * |
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15 * bms is distributed in the hope that it will be useful, but |
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16 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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18 * General Public License for more details. |
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19 * |
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20 * You should have received a copy of the GNU General Public License |
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21 * along with ThermFerm; see the file COPYING. If not, write to the Free |
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22 * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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23 */ |
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24 |
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25 |
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26 #include "bms.h" |
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27 #include "xutil.h" |
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28 #include "nodes.h" |
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29 #include "mysql.h" |
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30 |
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31 |
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32 sys_node_list *nodes = NULL; |
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33 |
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34 extern int debug; |
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35 |
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36 |
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37 |
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38 void node_birth_data(char *topic, char *payload) |
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39 { |
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40 struct json_object *jobj, *val, *metric, *metric2; |
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41 sys_node_list *node, *tmpp; |
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42 char *group_id, *message_type, *edge_node; |
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43 bool new_node = true; |
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44 |
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45 // fprintf(stdout, "node_birth: %s %s\n", topic, payload); |
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46 |
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47 strtok(topic, "/"); // ignore namespace |
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48 group_id = strtok(NULL, "/"); |
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49 message_type = strtok(NULL, "/"); |
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50 edge_node = strtok(NULL, "/\0"); |
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51 |
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52 /* |
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53 * Search node record in the memory array and use it if found. |
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54 */ |
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55 if (nodes) { |
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56 for (tmpp = nodes; tmpp; tmpp = tmpp->next) { |
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57 if ((strcmp(tmpp->group_id, group_id) == 0) && (strcmp(tmpp->node, edge_node) == 0)) { |
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58 new_node = false; |
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59 node = tmpp; |
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60 node->lastseen = time(NULL); |
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61 node->online = true; |
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62 break; |
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63 } |
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64 } |
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65 } |
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66 |
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67 /* |
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68 * Allocate new node if not yet known. |
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69 */ |
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70 if (new_node) { |
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71 node = (sys_node_list *)malloc(sizeof(sys_node_list)); |
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72 node->uuid = NULL; |
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73 node->next = NULL; |
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74 node->group_id = xstrcpy(group_id); |
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75 node->node = xstrcpy(edge_node); |
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76 node->online = true; |
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77 node->hardwaremake = node->hardwaremodel = node->os = node->os_version = node->firmware = NULL; |
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78 node->firstseen = node->lastseen = time(NULL); |
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79 node->temperature = node->humidity = node->barometer = 0.0; |
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80 node->gps_latitude = node->gps_longitude = node->gps_altitude = 0.0; |
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81 node->net_address = node->net_ifname = NULL; |
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82 node->net_rssi = 0; |
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83 } |
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84 |
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85 /* |
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86 * Process the JSON formatted payload. |
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87 * Update only the fields that are found in the payload. |
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88 */ |
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89 jobj = json_tokener_parse(payload); |
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90 |
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91 if (json_object_object_get_ex(jobj, "timestamp", &val)) { |
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92 if (strcmp((char *)"NDATA", message_type)) { |
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93 node->firstseen = json_object_get_int(val); |
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94 syslog(LOG_NOTICE, "Online node `%s/%s'", node->group_id, node->node); |
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95 } else { |
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96 node->lastseen = json_object_get_int(val); |
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97 } |
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98 } |
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99 |
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100 /* |
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101 if (json_object_object_get_ex(jobj, "seq", &val)) { |
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102 printf("seq: %s\n", json_object_to_json_string_ext(val, 0)); // Do we need it? |
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103 } |
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104 */ |
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105 |
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106 if (json_object_object_get_ex(jobj, "metric", &metric)) { |
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107 if (json_object_object_get_ex(metric, "uuid", &val)) { |
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108 if (node->uuid) |
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109 free(node->uuid); |
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110 node->uuid = xstrcpy((char *)json_object_get_string(val)); |
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111 } |
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112 if (json_object_object_get_ex(metric, "properties", &metric2)) { |
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113 if (json_object_object_get_ex(metric2, "hardwaremake", &val)) { |
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114 if (node->hardwaremake) |
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115 free(node->hardwaremake); |
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116 node->hardwaremake = xstrcpy((char *)json_object_get_string(val)); |
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117 } |
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118 if (json_object_object_get_ex(metric2, "hardwaremodel", &val)) { |
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119 if (node->hardwaremodel) |
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120 free(node->hardwaremodel); |
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121 node->hardwaremodel = xstrcpy((char *)json_object_get_string(val)); |
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122 } |
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123 if (json_object_object_get_ex(metric2, "os", &val)) { |
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124 if (node->os) |
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125 free(node->os); |
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126 node->os = xstrcpy((char *)json_object_get_string(val)); |
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127 } |
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128 if (json_object_object_get_ex(metric2, "os_version", &val)) { |
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129 if (node->os_version) |
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130 free(node->os_version); |
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131 node->os_version = xstrcpy((char *)json_object_get_string(val)); |
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132 } |
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133 if (json_object_object_get_ex(metric2, "FW", &val)) { |
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134 if (node->firmware) |
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135 free(node->firmware); |
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136 node->firmware = xstrcpy((char *)json_object_get_string(val)); |
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137 } |
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138 } |
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139 if (json_object_object_get_ex(metric, "THB", &metric2)) { |
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140 if (json_object_object_get_ex(metric2, "temperature", &val)) { |
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141 node->temperature = json_object_get_double(val); |
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142 } |
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143 if (json_object_object_get_ex(metric2, "humidity", &val)) { |
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144 node->humidity= json_object_get_double(val); |
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145 } |
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146 if (json_object_object_get_ex(metric2, "barometer", &val)) { |
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147 node->barometer = json_object_get_double(val); |
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148 } |
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149 } |
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150 if (json_object_object_get_ex(metric, "GPS", &metric2)) { |
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151 if (json_object_object_get_ex(metric2, "latitude", &val)) { |
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152 node->gps_latitude = json_object_get_double(val); |
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153 } |
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154 if (json_object_object_get_ex(metric2, "longitude", &val)) { |
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155 node->gps_longitude = json_object_get_double(val); |
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156 } |
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157 if (json_object_object_get_ex(metric2, "altitude", &val)) { |
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158 node->gps_altitude = json_object_get_double(val); |
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159 } |
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160 } |
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161 if (json_object_object_get_ex(metric, "net", &metric2)) { |
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162 if (json_object_object_get_ex(metric2, "address", &val)) { |
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163 if (node->net_address) |
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164 free(node->net_address); |
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165 node->net_address = xstrcpy((char *)json_object_get_string(val)); |
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166 } |
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167 if (json_object_object_get_ex(metric2, "ifname", &val)) { |
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168 if (node->net_ifname) |
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169 free(node->net_ifname); |
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170 node->net_ifname = xstrcpy((char *)json_object_get_string(val)); |
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171 } |
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172 if (json_object_object_get_ex(metric2, "rssi", &val)) { |
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173 node->net_rssi = json_object_get_int(val); |
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174 } |
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175 } |
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176 } |
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177 json_object_put(jobj); |
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178 |
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179 // node_dump(node); |
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180 |
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181 if (new_node) { |
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182 if (nodes == NULL) { |
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183 nodes = node; |
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184 } else { |
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185 for (tmpp = nodes; tmpp; tmpp = tmpp->next) { |
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186 if (tmpp->next == NULL) { |
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187 tmpp->next = node; |
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188 break; |
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189 } |
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190 } |
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191 } |
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192 node_mysql_insert(node); |
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193 } else { |
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194 node_mysql_update(node); |
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195 } |
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196 } |
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197 |
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198 |
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199 |
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200 void node_dump(sys_node_list *node) |
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201 { |
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202 if (debug) { |
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203 printf("online %s\n", node->online ? "yes":"no"); |
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204 printf("uuid %s\n", node->uuid); |
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205 printf("node %s\n", node->node); |
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206 printf("group %s\n", node->group_id); |
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207 printf("hw make %s model %s\n", node->hardwaremake, node->hardwaremodel); |
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208 printf("os %s version %s\n", node->os, node->os_version); |
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209 printf("firmware %s\n", node->firmware); |
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210 printf("first %ld last %ld\n", node->firstseen, node->lastseen); |
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211 printf("THB %.2f %.2f %.2f\n", node->temperature, node->humidity, node->barometer); |
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212 printf("GPS %.5f %.5f %.5f\n", node->gps_latitude, node->gps_longitude, node->gps_altitude); |
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213 printf("net %s:%s\n", node->net_ifname, node->net_address); |
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214 printf("rssi %d\n", node->net_rssi); |
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215 } |
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216 } |
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217 |
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218 |
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219 |
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220 void node_death(char *topic) |
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221 { |
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222 char *group_id, *edge_node; |
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223 sys_node_list *tmpp; |
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224 |
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225 strtok(topic, "/"); // ignore namespace |
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226 group_id = strtok(NULL, "/"); |
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227 strtok(NULL, "/"); // ignore message_type |
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228 edge_node = strtok(NULL, "/\0"); |
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229 |
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230 syslog(LOG_NOTICE, "Offline node `%s/%s'", group_id, edge_node); |
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231 node_mysql_death(edge_node); |
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232 |
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233 for (tmpp = nodes; tmpp; tmpp = tmpp->next) { |
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234 if (strcmp(tmpp->node, edge_node) == 0) { |
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235 tmpp->online = false; |
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236 break; |
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237 } |
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238 } |
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239 } |
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240 |
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241 |