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16 commits

Author SHA1 Message Date
Pablo Curiel
2c4ddac4c6 nca: skip hash layer crypto operations if needed.
ncaInitializeContext(), _ncaReadFsSection() and ncaGenerateHashDataPatch() were all updated to reflect this change.

SHA3-256 support is still missing.
2022-06-25 08:03:27 +02:00
Pablo Curiel
37b63aee60 More NCA parsing changes. 2022-06-24 02:22:01 +02:00
Pablo Curiel
b8992d1fdc Follow latest Switchbrew changes. 2022-04-18 23:59:25 +02:00
Pablo Curiel
215b677f02 keys: use __getline() to parse keys file.
* keysGetKeyAndValueFromFile() is now thread-safe -- may be useful for people reusing code from nxdumptool. The dynamic buffer allocated by __getline() must be freed by the caller. Furthermore, this fixes an out-of-bounds issue while writing data to the static array that was being used with fgets().
* Empty lines are now considered failures.
* keysGetKeyAndValueFromFile() now validates the value string and converts it to lowercase as well.
* Adjusted the example regex in the description for keysGetKeyAndValueFromFile() to accurately match what the function actually does.
* Added helper macros to keysReadKeysFromFile().
2022-04-18 23:38:18 +02:00
Pablo Curiel
2fa61dc228 Update copyright year. 2022-03-17 13:58:40 +01:00
Pablo Curiel
c99f6776a7 keys: use dev.keys instead of prod.keys under dev units. 2022-02-10 19:05:07 +01:00
Pablo Curiel
376199b5cb keys: don't look up a key entry if it's not mandatory. 2022-02-09 05:38:13 +01:00
Pablo Curiel
9cc1d64694 Update references to latest HOS version. 2022-01-20 18:09:03 +01:00
Pablo Curiel
64ab1705bc Implement JSON configuration handler.
* Thread-safe.
* Provides getter/setter functions for the data types used by nxdumptool's configuration.
* Each setter function writes the modified JSON configuration back to the SD card.
* Configuration is validated on interface initialization. If validation fails, a default JSON template is loaded from the application's RomFS and written back to the SD card.

Other changes:

* Implement directory creation.
* Moved more preprocessor definitions to defines.h.
* Replaced strtok() calls throughout the code with strtok_r() to guarantee thread-safety.
2021-07-21 11:04:18 -04:00
Pablo Curiel
c0e82b3686 Tidy up GameCardFwVersion, NcaKeyGeneration and NcaMainSignatureKeyGeneration enums.
Thanks @0Liam
2021-06-03 10:46:21 -04:00
Pablo Curiel
21d1b001ee LAFW shenanigans.
* Added custom key sources to derive CardInfo keys at runtime using SPL.

* Implemented CardInfo area decryption.

* Implemented LAFW blob lookup in FS .data segment to retrieve the current LAFW version.

P.S.: still need to move around code to perform the LAFW version check at the places we need. But the current code is good enough for a test.
2021-05-22 04:45:40 -04:00
Pablo Curiel
f526d4e6f4 Crypto changes.
* Implemented RSA-2048-PSS + SHA256 signature verification.

* Refactored RSA-2048-OAEP decryption steps to use mbedtls function calls.

* Implemented NCA header main signature verification.

* Replaced Björn Samuelsson's CRC32 algorithm with the hardware accelerated CRC32 checksum calculation from libnx (latest commit with support for calculation in blocks).
2021-05-21 09:34:43 -04:00
Pablo Curiel
f82d7a3db4 Small code refactor (part 2).
* Rewrote mutex handling throughout the code to use a small, macro-based scoped lock implementation.

* Removed extern variables from common.h - launch path management is now completely handled in utils.c.

* Updated NpdmSystemCallId_Count to reflect changes introduced in 12.0.0.

* Added NcaMainSignatureKeyGeneration enum.

* NCA main signature moduli are now retrieved from FS .rodata at runtime.

* Simplified lock management in usb.c by using a single global mutex with scoped locks instead of three different r/w locks.

* Updated FatFs to R0.14b.

* Enabled 64-bit LBA support in FatFs to potentially support custom eMMC replacements / resized USER partitions in the future.

* Updated LZ4 to v1.9.3.

* Fixed typos.

* USB gamecard dumper PoC now only dumps the Initial Data area.

* Updated to-do list.
2021-05-18 08:32:43 -04:00
Pablo Curiel
4c0c7d2c56 Small code refactor.
* Refactored keydata handling.

* Sealed NCA KAEKs are now generated at startup, and NCA key area entries are now decrypted by keysDecryptNcaKeyAreaEntry(), reducing the number of calls to spl functions.

* The eTicket RSA device key is now retrieved and decrypted at startup. RSA-OAEP wrapped titlekeys are now decrypted by keysDecryptRsaOaepWrappedTitleKey().

* Renamed titlekek -> ticket common key throughout the codebase.

* Added NcaKeyAreaEncryptionKeyIndex_Count and NcaKeyGeneration_Max enum values to nca.h.

* Proper usage of strcasecmp() in some functions.

* Moved syscall hint checks from keys.c to mem.c.

* Define illegal FS characters as an array rather than a char pointer.

* Services are now initialized before the CFW type checks.

* Fixed pcv/clkrst service initialization.

* Implemented additional thread safety and logfile output to service functions.

* Slightly tweaked running service checks.

* Added proper Markdown documentation for the USB ABI.
2021-05-11 02:00:33 -04:00
Pablo Curiel
11da814fb2 Fix building issues with Borealis. 2021-03-26 00:35:14 -04:00
Pablo Curiel
c6c5667bf0 Change project layout + upgrade license to GPLv3. 2021-03-25 15:26:58 -04:00
Renamed from source/keys.c (Browse further)