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Add Checksums to Firmware & External App images (#1809)

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* Pad image to 1MB and add simple checksum

* Test code to verify firmware checksum

* Comment out unneeded zlib

* Add files via upload

* Print space remaining in ROM

* Append checksum to external apps too

* Check external app checksums when loading

* Is it 2024 already?!

* Validate firmware checksum before flashing

* Add files via upload

* Added flash error warning to nav screen

* Clang

* Replaced some hard-coded values with #defines

* Check FW checksum before USB serial flash too

* Add files via upload
This commit is contained in:
Mark Thompson 2024-01-24 16:37:21 -06:00 • committed by GitHub
parent 2d98c5d311
commit 6a6c6d6502
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GPG key ID: B5690EEEBB952194
13 changed files with 179 additions and 13 deletions
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11
firmware/application/ui_external_items_menu_loader.cpp
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@ -107,6 +107,7 @@ namespace ui {
/* static */ bool ExternalItemsMenuLoader::run_external_app(ui::NavigationView& nav, std::filesystem::path filePath) {
File app;
uint32_t checksum{0};
auto openError = app.open(filePath);
if (openError)
@ -115,7 +116,6 @@ namespace ui {
application_information_t application_information = {};
auto readResult = app.read(&application_information, sizeof(application_information_t));
if (!readResult)
return false;
@ -135,6 +135,8 @@ namespace ui {
if (!readResult)
return false;
checksum += simple_checksum((uint32_t)&application_information.memory_location[file_read_index], readResult.value());
if (readResult.value() < std::filesystem::max_file_block_size)
break;
}
@ -156,6 +158,8 @@ namespace ui {
if (!readResult)
return false;
checksum += simple_checksum((uint32_t)target_memory, readResult.value());
if (readResult.value() != bytes_to_read)
break;
}
@ -168,11 +172,16 @@ namespace ui {
if (!readResult)
return false;
checksum += simple_checksum((uint32_t)&application_information.memory_location[file_read_index], readResult.value());
if (readResult.value() < std::filesystem::max_file_block_size)
break;
}
}
if (checksum != EXT_APP_EXPECTED_CHECKSUM)
return false;
application_information.externalAppEntry(nav);
return true;
}