ocaml-tar
flipperzero-firmware
| ocaml-tar | flipperzero-firmware | |
|---|---|---|
| 1 | 505 | |
| 54 | 11,208 | |
| - | 2.8% | |
| 7.3 | 9.6 | |
| 6 days ago | 6 days ago | |
| OCaml | C | |
| ISC License | GNU General Public License v3.0 only |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
ocaml-tar
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Littlefs – a little fail-safe filesystem designed for microcontrollers
I helped build a tar-backed filesystem for MirageOS[0]. It is definitely easiest to make it append-only. I did add in-place renaming, updates (of file content), pre-allocating a file and removing the last file.
We also scan the filesystem on boot and keep a mapping in-memory of file names to file metadata and block offsets, and update this memory representation when modifying the on-disk tar filesystem. If you have a lot of small files this is maybe not a great idea as you will be storing most in memory, though.
For the purpose we had in mind it worked fine: A content addressable mirror of package archives. The archives exist somewhere on the web and the package file has a link to the archive and a checksum. We can then download the package and store it by the checksum. This gives integrity that the tar filesystem does not offer. Removing the last file works great if you only have one download job. Otherwise if a download fails and it is not the latest file you can rename it to `failed/-` and do garbage collection in the filesystem at a later point.
[0]: https://github.com/mirage/ocaml-tar/blob/main/mirage/tar_mir...
flipperzero-firmware
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Xtreme-Firmware alternatives - awesome-flipperzero, flipperzero-firmware-wPlugins, fucking-awesome-flipperzero, proxmark3-to-flipper, and flipperzero-firmware
6 projects | 12 Feb 2024
- Flipper Zero: Multi-Tool Device for Geeks
- Flipper Zero – Portable Multi-Tool Device for Geeks
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Flipper 1.1.0
Man I got really excited thinking this was about the Flipper Zero device https://flipperzero.one/
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Littlefs – a little fail-safe filesystem designed for microcontrollers
We use littlefs in Flipper Zero's firmware[1] for storage in leftover flash space after the main firmware image. Flipper implements a virtual FS, where both external SD card and internal storage have own mount points. SD card is used for storing apps and user-created data, and internal littlefs contains persistent data like BLE pairing, system services configs and such.
We never had any issues with littlefs - however, it cannot be easily repartitioned when amount of available leftover space changes with firmware updates. So on installing an update, it gets fully backed up to SD card, reformatted and later restored.
1- https://github.com/flipperdevices/flipperzero-firmware/blob/...
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Flipper thinks all NTAG215 cards are password protected
Issue opened.
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Serialization and serialization of structs
It is used in FlipperZero with FreeRTOS to handle the data structure.
- Where do I find a replacement remote for this light?
- Flipper Zero Firmware Release 0.96
- I have a Secret Santa coming up - my giftee is somebody with a cybersecurity background. Any good ideas?
What are some alternatives?
littlefs - A little fail-safe filesystem designed for microcontrollers
hackrf - low cost software radio platform
proxmark3 - Iceman Fork - Proxmark3
ChameleonMini - The ChameleonMini is a versatile contactless smartcard emulator compliant to NFC. The ChameleonMini was developed by https://kasper-oswald.de. The device is available at https://shop.kasper.it. For further information see the Getting Started Page https://rawgit.com/emsec/ChameleonMini/master/Doc/Doxygen/html/_page__getting_started.html or the Wiki tab above.
flipperzero-firmware-wPlugins - RogueMaster Flipper Zero Firmware
ChameleonMini - The ChameleonMini is a versatile contactless smartcard emulator compliant to NFC. The ChameleonMini was first developed by KAOS. This is NOT the official repo for KAOS's ChameleonMini. For further information see the Getting Started Page
awesome-flipperzero - 🐬 A collection of awesome resources for the Flipper Zero device.
libnfc - Platform independent Near Field Communication (NFC) library
pwnagotchi - (⌐■_■) - Deep Reinforcement Learning instrumenting bettercap for WiFi pwning.
flipperzero-firmware - Flipper Zero Firmware
odiin - Attempts at nRF52840 ISO 14443-A magic!
stm32-bootloader - Customizable Bootloader for STM32 microcontrollers. This example demonstrates how to perform in-application-programming of a firmware located on an external SD card with FAT32 file system.