Mercurial > co2meter / file comparison

comparison: main/config.c

main/config.c

changeset 0
88d965579617
child 1
1082183cd6bb
equal deleted inserted replaced
-1:000000000000 0:88d965579617
1 /**
2 * @file config.c
3 * @brief BrewBoard configuration files.
4 */
5
6 #include "config.h"
7
8 static const char *TAG = "config";
9
10 extern unit_t units[3];
11
12
13 void write_config() {
14 uint8_t *dst = (uint8_t *)&config;
15 FILE *f = fopen("/spiffs/etc/config.conf", "w+");
16
17 if (f == NULL) {
18 ESP_LOGE(TAG, "write /spiffs/etc/config.conf failed");
19 return;
20 }
21
22 size_t bytes = fwrite(dst, 1, sizeof(config), f);
23 fclose(f);
24 if (bytes != sizeof(config)) {
25 ESP_LOGE(TAG, "/spiffs/etc/config.conf written %d/%d bytes", bytes, sizeof(config));
26 } else {
27 ESP_LOGI(TAG, "/spiffs/etc/config.conf written %d bytes", bytes);
28 }
29 }
30
31
32
33 void read_config() {
34 uint8_t *dst;
35 uint8_t mac_addr[8] = {0};
36 FILE *f = fopen("/spiffs/etc/config.conf", "r");
37
38 if (f == NULL) {
39 // No configuration yet, create it.
40 esp_efuse_mac_get_default(mac_addr);
41 config.Version = 1;
42 sprintf(config.hostname, "pressure-%02x%02x%02x", mac_addr[3], mac_addr[4], mac_addr[5]);
43 config.mqtt_server[0] = '\0';
44 config.mqtt_port = 1883;
45 config.mqtt_user[0] = '\0';
46 config.mqtt_pwd[0] = '\0';
47 sprintf(config.uuid, "c0ffeeee-dead-beef-cafe-%02x%02x%02x%02x%02x%02x",
48 mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
49 write_config();
50 } else {
51 dst = (uint8_t*)&config;
52 size_t bytes = fread(dst, 1, sizeof(config), f);
53 fclose(f);
54 ESP_LOGI(TAG, "/spiffs/etc/config.conf read %d bytes", bytes);
55 }
56 }
57
58
59
60 void write_units() {
61 uint8_t *dst = (uint8_t *)&units;
62 FILE *f = fopen("/spiffs/etc/units.conf", "w+");
63
64 if (f == NULL) {
65 ESP_LOGE(TAG, "write /spiffs/etc/units.conf failed");
66 return;
67 }
68 size_t bytes = fwrite(dst, 1, sizeof(units), f);
69 fclose(f);
70 if (bytes != sizeof(units)) {
71 ESP_LOGE(TAG, "/spiffs/etc/units.conf written %d/%d bytes", bytes, sizeof(units));
72 } else {
73 ESP_LOGI(TAG, "/spiffs/etc/units.conf written %d bytes", bytes);
74 }
75 }
76
77
78
79 void read_units() {
80 uint8_t *dst;
81 uint8_t mac_addr[8] = {0};
82 FILE *f = fopen("/spiffs/etc/units.conf", "r");
83
84 if (f == NULL) {
85 // No units yet, create them.
86 esp_efuse_mac_get_default(mac_addr);
87 for (int i = 0; i < 3; i++) {
88 memset(&units[i], 0, sizeof(unit_t));
89 sprintf(units[i].uuid, "c0ffeeee-dead-beef-caf%d-%02x%02x%02x%02x%02x%02x", i & 3,
90 mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
91 sprintf(units[i].alias, "unit%d", (i + 1) & 3);
92 }
93 write_units();
94 } else {
95 dst = (uint8_t*)&units;
96 size_t bytes = fread(dst, 1, sizeof(units), f);
97 fclose(f);
98 ESP_LOGI(TAG, "/spiffs/etc/units.conf read %d bytes", bytes);
99 ESP_LOGI(TAG, "%s %s", units[0].uuid, units[0].alias);
100 }
101 }
102
103
104
105 int add_station(uint8_t *SSID, uint8_t *Password)
106 {
107 FILE *f;
108 uint8_t *dst = (uint8_t *)&wifiStation;
109
110 if (read_station(SSID) >= 0) {
111 ESP_LOGE(TAG, "add_station %s already excists", SSID);
112 return -1;
113 }
114
115 f = fopen("/spiffs/etc/stations.conf", "a+");
116 if (f == NULL) {
117 ESP_LOGE(TAG, "write /spiffs/etc/stations.conf failed");
118 return -1;
119 }
120 memset(dst, 0, sizeof(wifiStation));
121 sprintf(wifiStation.SSID, "%s", (char *)SSID);
122 sprintf(wifiStation.Password, "%s", (char *)Password);
123 wifiStation.hide = false;
124 fwrite(dst, 1, sizeof(wifiStation), f);
125 fclose(f);
126
127 ESP_LOGI(TAG, "add_station %s record: %d", (char *)SSID, read_station(SSID));
128 /* Return the record number */
129 return read_station(SSID);
130 }
131
132
133
134 int read_station(uint8_t *SSID)
135 {
136 uint8_t *dst = (uint8_t *)&wifiStation;
137 static int rc;
138 FILE *f;
139 size_t bytes;
140
141 if ((SSID == NULL) || (strlen((char *)SSID) == 0)) {
142 ESP_LOGI(TAG, "read_station(NULL)");
143 return -1;
144 }
145
146 memset(dst, 0, sizeof(wifiStation));
147 f = fopen("/spiffs/etc/stations.conf", "r+");
148 if (f == NULL) {
149 f = fopen("/spiffs/etc/stations.conf", "w+");
150 fclose(f);
151 ESP_LOGI(TAG, "/spiffs/etc/stations.conf created, return -1");
152 return -1;
153 }
154
155 rc = 0;
156 fseek(f, 0, SEEK_SET);
157
158 while (1) {
159 bytes = fread(dst, 1, sizeof(wifiStation), f);
160 if (bytes < sizeof(wifiStation)) {
161 fclose(f);
162 memset(dst, 0, sizeof(wifiStation));
163 return -1;
164 }
165 if (strcmp(wifiStation.SSID, (char *)SSID) == 0) {
166 // Fount it
167 fclose(f);
168 return rc;
169 }
170 rc++;
171 }
172 return -1;
173 }
174
175
176
177 void remove_station(uint8_t *SSID)
178 {
179 FILE *n, *o;
180 uint8_t *dst;
181 size_t bytes;
182
183 n = fopen("/spiffs/etc/stations.new", "a");
184 if (n == NULL) {
185 ESP_LOGE(TAG, "cannot create /spiffs/etc/stations.new");
186 return;
187 }
188 o = fopen("/spiffs/etc/stations.conf", "r");
189 if (o == NULL) {
190 ESP_LOGE(TAG, "cannot open spiffs/etc/stations.conf for reading");
191 fclose(n);
192 return;
193 }
194
195 dst = (uint8_t*)&wifiStation;
196 while (true) {
197 bytes = fread(dst, 1, sizeof(wifiStation), o);
198 if (bytes == 0)
199 break;
200
201 if ((strcmp((char *)SSID, wifiStation.SSID) == 0) || (strlen(wifiStation.SSID) == 0)) {
202 // Record to delete, don't copy
203 } else {
204 fwrite(dst, 1, sizeof(wifiStation), n);
205 }
206 }
207 fclose(o);
208 fclose(n);
209
210 rename("/spiffs/etc/stations.conf", "/spiffs/etc/stations.old");
211 rename("/spiffs/etc/stations.new", "/spiffs/etc/stations.conf");
212 unlink("/spiffs/etc/stations.old");
213 }
214

Mercurial Repository: co2meter

mercurial