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Calculate CRC32 of Protobuf and compare before save.

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This commit is contained in:
Thomas Göttgens 2022-10-05 08:52:27 +02:00
parent 063c4904ff
commit 54816231e9
2 changed files with 21 additions and 5 deletions
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1
platformio.ini
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@ -51,6 +51,7 @@ lib_deps =
https://github.com/meshtastic/TinyGPSPlus.git#2f0d0528d737000043e949f4c3bdfb623cf0b902 https://github.com/meshtastic/TinyGPSPlus.git#2f0d0528d737000043e949f4c3bdfb623cf0b902
https://github.com/meshtastic/ArduinoThread.git#72921ac222eed6f526ba1682023cee290d9aa1b3 https://github.com/meshtastic/ArduinoThread.git#72921ac222eed6f526ba1682023cee290d9aa1b3
nanopb/Nanopb@^0.4.6 nanopb/Nanopb@^0.4.6
erriez/ErriezCRC32@^1.0.1
; Used for the code analysis in PIO Home / Inspect ; Used for the code analysis in PIO Home / Inspect
check_tool = cppcheck check_tool = cppcheck

25
src/mesh/NodeDB.cpp
View File

@ -16,6 +16,7 @@
#include "mesh-pb-constants.h" #include "mesh-pb-constants.h"
#include <pb_decode.h> #include <pb_decode.h>
#include <pb_encode.h> #include <pb_encode.h>
#include <ErriezCRC32.h>
#ifdef ARCH_ESP32 #ifdef ARCH_ESP32
#include "mesh/http/WiFiAPClient.h" #include "mesh/http/WiFiAPClient.h"
@ -268,6 +269,12 @@ void NodeDB::init()
DEBUG_MSG("Initializing NodeDB\n"); DEBUG_MSG("Initializing NodeDB\n");
loadFromDisk(); loadFromDisk();
uint32_t devicestateCRC = crc32Buffer(&devicestate, sizeof(devicestate));
uint32_t configCRC = crc32Buffer(&config, sizeof(config));
uint32_t channelFileCRC = crc32Buffer(&channelFile, sizeof(channelFile));
int saveWhat = 0;
myNodeInfo.max_channels = MAX_NUM_CHANNELS; // tell others the max # of channels we can understand myNodeInfo.max_channels = MAX_NUM_CHANNELS; // tell others the max # of channels we can understand
myNodeInfo.error_code = CriticalErrorCode_NONE; // For the error code, only show values from this boot (discard value from flash) myNodeInfo.error_code = CriticalErrorCode_NONE; // For the error code, only show values from this boot (discard value from flash)
@ -305,7 +312,15 @@ void NodeDB::init()
resetRadioConfig(); // If bogus settings got saved, then fix them resetRadioConfig(); // If bogus settings got saved, then fix them
DEBUG_MSG("region=%d, NODENUM=0x%x, dbsize=%d\n", config.lora.region, myNodeInfo.my_node_num, *numNodes); DEBUG_MSG("region=%d, NODENUM=0x%x, dbsize=%d\n", config.lora.region, myNodeInfo.my_node_num, *numNodes);
saveToDisk(SEGMENT_DEVICESTATE | SEGMENT_CONFIG | SEGMENT_CHANNELS);
if (devicestateCRC != crc32Buffer(&devicestate, sizeof(devicestate)))
saveWhat |= SEGMENT_DEVICESTATE;
if (configCRC != crc32Buffer(&config, sizeof(config)))
saveWhat |= SEGMENT_CONFIG;
if (channelFileCRC != crc32Buffer(&channelFile, sizeof(channelFile)))
saveWhat |= SEGMENT_CHANNELS;
saveToDisk(saveWhat);
} }
// We reserve a few nodenums for future use // We reserve a few nodenums for future use
@ -480,11 +495,11 @@ void NodeDB::saveToDisk(int saveWhat)
#ifdef FSCom #ifdef FSCom
FSCom.mkdir("/prefs"); FSCom.mkdir("/prefs");
#endif #endif
if (saveWhat && SEGMENT_DEVICESTATE) { if (saveWhat & SEGMENT_DEVICESTATE) {
saveDeviceStateToDisk(); saveDeviceStateToDisk();
} }
if (saveWhat && SEGMENT_CONFIG) { if (saveWhat & SEGMENT_CONFIG) {
config.has_device = true; config.has_device = true;
config.has_display = true; config.has_display = true;
config.has_lora = true; config.has_lora = true;
@ -495,7 +510,7 @@ void NodeDB::saveToDisk(int saveWhat)
saveProto(configFileName, LocalConfig_size, sizeof(config), LocalConfig_fields, &config); saveProto(configFileName, LocalConfig_size, sizeof(config), LocalConfig_fields, &config);
} }
if (saveWhat && SEGMENT_MODULECONFIG) { if (saveWhat & SEGMENT_MODULECONFIG) {
moduleConfig.has_canned_message = true; moduleConfig.has_canned_message = true;
moduleConfig.has_external_notification = true; moduleConfig.has_external_notification = true;
moduleConfig.has_mqtt = true; moduleConfig.has_mqtt = true;
@ -506,7 +521,7 @@ void NodeDB::saveToDisk(int saveWhat)
saveProto(moduleConfigFileName, LocalModuleConfig_size, sizeof(moduleConfig), LocalModuleConfig_fields, &moduleConfig); saveProto(moduleConfigFileName, LocalModuleConfig_size, sizeof(moduleConfig), LocalModuleConfig_fields, &moduleConfig);
} }
if (saveWhat && SEGMENT_CHANNELS) { if (saveWhat & SEGMENT_CHANNELS) {
saveChannelsToDisk(); saveChannelsToDisk();
} }
} else { } else {