Commit Graph

103 Commits

Author SHA1 Message Date
JosJuice bb27d4cc95 DiscIO/VolumeWii: Decouple "is encrypted" from "is hashed"
Needed for the next commit. NFS disc images are hashed but not encrypted.

While we're at it, also get rid of SupportsIntegrityCheck.
It does the same thing as old IsEncryptedAndHashed and new HasWiiHashes.
2022-08-04 20:29:22 +02:00
Shawn Hoffman dd29a54cf6 introduce wrapper for SHA1 functionality 2022-07-26 22:16:37 -07:00
Admiral H. Curtiss 09fc39e2e5
DiscIO: Add CreateDisc/WAD/Volume() overloads that take a BlobReader directly. 2021-10-24 00:09:05 +02:00
Pierre Bourdon e149ad4f0a
treewide: convert GPLv2+ license info to SPDX tags
SPDX standardizes how source code conveys its copyright and licensing
information. See https://spdx.github.io/spdx-spec/1-rationale/ . SPDX
tags are adopted in many large projects, including things like the Linux
kernel.
2021-07-05 04:35:56 +02:00
JosJuice c0eb95481f VolumeVerifier: Align partition reads to groups
This improves the speed of verifying Wii WIA/RVZ files.
For me, the verification speed for LZMA2-compressed files
has gone from 11-12 MiB/s to 13-14 MiB/s.

One thing VolumeVerifier does to achieve parallelism is to
compute hashes for one chunk of data while reading the next
chunk of data. In master, when reading data from a Wii
partition, each such chunk is 32 KiB. This is normally fine,
but with WIA and RVZ it leads to rather lopsided read times
(without the compute times being lopsided): The first 32 KiB
of each 2 MiB takes a long time to read, and the remaining
part of the 2 MiB can be read nearly instantly. (The WIA/RVZ
code has to read the entire 2 MiB in order to compute hashes
which appear at the beginning of the 2 MiB, and then caches
the result afterwards.) This leads to us at times not doing
much reading and at other times not doing much computation.
To improve this, this change makes us use 2 MiB chunks
instead of 32 KiB chunks when reading from Wii partitions.

(block = 32 KiB, group = 2 MiB)
2021-03-22 21:07:01 +01:00
JMC47 e7e5175606
Merge pull request #8861 from JosJuice/netplay-hash
Make netplay's "same game" check more robust
2020-09-06 17:14:08 -04:00
Tillmann Karras ca61b6c1ab DiscIO: make use of std::nullopt
This also fixes a bogus GCC warning.
2020-08-08 21:53:27 +01:00
JosJuice a41166bb37 Make netplay's "same game" check more robust
Instead of comparing the game ID, revision, disc number and name,
we can compare a hash of important parts of the disc including
all the aforementioned data but also additional data such as the
FST. The primary reason why I'm making this change is to let us
catch more desyncs before they happen, but this should also fix
https://bugs.dolphin-emu.org/issues/12115. As a bonus, the UI can
now distinguish the case where a client doesn't have the game at
all from the case where a client has the wrong version of the game.
2020-08-02 22:46:53 +02:00
JosJuice 2e8c5b4521 DolphinQt: Show a warning when launching an NKit disc image
It is my opinion that nobody should use NKit disc images without
being aware of the drawbacks of them. Since it seems like almost
nobody who is using NKit disc images knows what NKit is (hmm, now
how could that have happened...?), I am adding a warning to Dolphin
so that you can't run NKit disc images without finding out about the
drawbacks. In case someone really does want to use NKit disc images,
the warning has a "Don't show this again" option. Unfortunately, I
can't retroactively add the warning where it's most needed:
in Dolphin 5.0, which does not support Wii NKit disc images.
2020-07-29 21:05:57 +02:00
JosJuice f24566bf39 DiscIO: Add Volume::IsDatelDisc 2020-07-04 14:51:13 +02:00
JosJuice d17b801518 DiscIO: Deduplicate some VolumeGC/VolumeWii code 2020-06-25 16:37:21 +02:00
JosJuice 162e3be82b Show an OSD message when running a disc image with a large block size
This is intended to catch WIA files which have been created using
wit's default parameters (40 MiB block size), once the WIA PR is
merged. The check does however also work for GCZ files – not that
I think anyone has a GCZ file with a block size that large.
2020-06-07 14:11:00 +02:00
Léo Lam ad75215bb0 Fix several warnings
A small, nonexhaustive set of warning fixes. The DiscIO Volume change
is a workaround for a GCC bug [1] that causes returning an unengaged
std::optional to emit annoying -Wmaybe-uninitialized warnings.
This last change alone fixes pages upon pages of warnings since
Volume.h is included from several files.

-Wstringop-truncation is another irrelevant warning for us, but
unfortunately there seems to be no way to disable it without
adding ugly pragmas wherever the warning appears.
2020-01-04 12:11:39 +01:00
JosJuice f754a1a548 VolumeVerifier: Don't read data multiple times 2019-08-06 16:32:01 +02:00
Lioncash db3b31c246 DiscIO/Volume: Make Partition's interface constexpr
PARTITION_NONE technically has a runtime static constructor otherwise.
This allows compile-time instances of Partition to be created without
the use of a static constructor.
2019-08-02 18:25:09 -04:00
JosJuice 4b73d18eaa Re-implement FixCommonKeyIndex for WAD files
The old implementation of this was not able to distinguish between
a title that had the common key index set to 1 because it actually
was Korean and a title that had the common key index set to 1 due to
fakesigning. This new implementation solves the problem by
decrypting a content with each possible common key and checking
which result matches the provided SHA-1 hash.

The problem that the old implementation causes has only been reported
to affect a certain pirated WAD of Chronos Twins DX (WC6EUP), but it's
possible that the problem would start affecting more WADs if we add
support for the vWii common key (which uses index 2). Adding support
for the vWii common key would also prevent us from using the simpler
solution of always forcing the index to 0 if the title is not Korean.
2019-07-21 09:58:16 +02:00
JosJuice 34f32898e6 DiscIO: Merge WiiWAD into VolumeWAD
These two classes are very similar, so let's merge them.
2019-07-18 22:29:04 +02:00
JosJuice 0f5a4b37ee DiscIO: Add functions CreateDisc and CreateWAD
...in addition to the existing function CreateVolume
(renamed from CreateVolumeFromFilename).

Lets code easily add constraints such as not letting the user
select a WAD file when using the disc changing functionality.
2019-07-18 22:29:04 +02:00
JosJuice 8709b21ac3 VolumeVerifier: Verify WAD contents 2019-04-09 14:18:46 +02:00
JosJuice 4fd2d8e8c4 VolumeVerifier: Check hashes in Wii partitions 2019-04-09 14:18:45 +02:00
JosJuice c028a84531 Volume: Add a GetCertificateChain function 2019-03-30 12:45:28 +01:00
JosJuice 3014dadfa8 DiscIO: Add way of checking whether blob data size is accurate 2019-03-30 12:45:17 +01:00
JosJuice 8842a0f402 Keep track of GameTDB ID separately from game ID
The difference between Dolphin's game IDs and GameTDB's game IDs
is that GameTDB uses four characters for non-disc titles, whereas
Dolphin uses six characters for all titles.

This fixes:

- TitleDatabase considering Datel discs to be NHL Hitz 2002
- Gecko code downloading not working for discs with IDs starting with P
- Cover downloading mixing up discs with channels (e.g. Mario Kart Wii
  and Mario Kart Channel) and making extra HTTP requests. (Android was
  actually doing a better job at this than DolphinQt!)
2019-02-25 19:54:25 +01:00
JosJuice 8baafcc523 Accurate region detection for NAND titles 2018-10-28 11:27:08 +01:00
JosJuice 0bcb9923f8 Fix reading title IDs of Wii discs
Partial revert of a1db82a.
Should fix https://bugs.dolphin-emu.org/issues/11404.
2018-09-30 17:46:20 +02:00
JosJuice cec601f1fb Read Wii disc metadata from the unencrypted header
The header of a Wii disc can be read from two places: The
unencrypted area at the beginning of the disc, or the beginning of
the game partition. The two copies are usually identical (except
for 0x60 and 0x61), but there are exceptions. For most of Dolphin's
history, we have been reading from the header inside the game
partition when getting metadata. This was however not the case
starting with 4.0-4901 and ending with 5.0-3762. This commit once
again makes Dolphin read metadata from the unencrypted header,
because of the following reasons that I recently was informed about:

- The "pink fish" disc has the game ID 410E01 in the unencrypted
  header but the placeholder game ID RELSAB in the partition header.
- The revisions of some games differ between the two headers,
  with the unencrypted one making more sense.
  (See https://bugs.dolphin-emu.org/issues/11387)

For better or worse, this also means that sloppily hacked games where
only the game ID in the unencrypted header has been changed now will
use that modified game ID. And unlike with the partition header,
there is no signing or hashing that can tell us whether the
unencrypted header has been modified by someone other than Nintendo.
2018-09-12 13:41:30 +02:00
Lioncash 66122f037e Volume/VolumeGC/VolumeWii: Amend variable naming
Drops prefixed underscores and normalizes names to follow our coding
style.
2018-05-30 03:33:12 -04:00
JosJuice 58743416bb Make the support for unencrypted Wii disc images less broken
These disc images are only used on dev units and not retail units.
There are two important differences compared to normal Wii disc images:

- The data starts 0x8000 bytes into each partition instead of 0x20000
- The data of a partition is stored unencrypted and contains no hashes

Our old implementation was just guesswork and doesn't work at all.
According to testing by GerbilSoft, this commit's implementation
is able to read and extract files in the filesystem correctly,
but the tested game still isn't able to boot. (It's thanks to their
info about unencrypted disc images that I was able to make this commit.)
2018-05-23 08:40:37 +02:00
JosJuice cc42b4354d Reimplement custom PNG banners in game list
Fixes https://bugs.dolphin-emu.org/issues/10938
and makes PNG banners available in DolphinQt2 for the first time.
2018-05-20 15:34:03 +02:00
JosJuice 1dc2a85ccc Avoid UB when reading Wii volume names 2017-11-03 23:17:40 +01:00
JosJuice 5a6d90900e Add WiiSaveBanner class
This class is similar to the BannerLoaderWii class that was
removed in ee694e32.
2017-11-03 23:00:43 +01:00
JosJuice 38304da947 DiscIO: Use Common::Lazy for loading filesystems
This simplifies FileMonitor a lot and also lets us
clean up FilesystemPanel.
2017-09-15 18:57:05 +02:00
JosJuice 5e3c98af1d DiscIO: Add a Volume::ReadSwappedAndShifted function
This is a fairly common operation, so let's make a utility
function for it to cut down on code duplication.
2017-08-02 22:00:51 +02:00
JosJuice 37c09343d8 Turn VolumeDirectory into DirectoryBlob
This lets VolumeDirectory/DirectoryBlob skip implementing
various volume functions like GetGameID, GetBanner, etc.
It also lets us view extracted discs in the game list.

This ends up breaking the boot process for Wii
DirectoryBlobs due to workarounds being removed from the
boot process, but that will be fixed later by adding
proper DirectoryBlob support for things like TMDs.

We now expect the directories to be laid out in a certain
format (based on the format that WIT uses) instead of requiring
the user to set the DVD root and apploader path settings.
2017-08-01 11:36:40 +02:00
JosJuice db1c534b3e Add warning comments to RegionSwitch and code that uses it 2017-07-16 14:49:28 +02:00
JosJuice a59edfe8cf FilesystemPanel: Put partitions in separate folders when extracting all partitions 2017-06-28 22:25:27 +02:00
JosJuice b2af07a7b7 DiscIO: Remove C/I/S prefixes from class names
These prefixes were inconsistent with the rest of Dolphin.

I'm also renaming VolumeWiiCrypted to VolumeWii because of 1113b13.
2017-06-06 12:31:59 +02:00
JosJuice c3fa0d6edf DiscIO: Use std::optional in Volume and Blob 2017-06-05 13:26:51 +02:00
JosJuice 2ce9281f77 Don't show FST size in game properties
Normal users don't care about it. In fact, people care so
little about it that the Wii implementation of it was broken
starting from when it was implemented (eb65601) to 7 years
later (e0a47c1), apparently without anyone reporting it.
2017-06-04 14:20:20 +02:00
JosJuice 703858e217 Merge pull request #5522 from leoetlino/simpler-gettitleid
DiscIO: Use std::optional for GetTitleID instead of pointer
2017-06-04 08:57:36 +02:00
Léo Lam 1a17c02d6f DiscIO: Use std::optional for GetTitleID instead of pointer
This makes the interface slightly cleaner and a bit more consistent
with the other getters. Still not fully the same, since the others
don't really handle failures with std::optional; but at least the
value is returned by value now, as opposed to having the function
take a pointer to a u64.
2017-06-03 21:56:33 +02:00
JosJuice 1c926dcae2 Replace {{}} with {}
IIRC we were only using {{}} because {} used to cause errors
on the FreeBSD buildbot.
2017-06-03 18:14:22 +02:00
JosJuice 5c68a03ae4 VolumeWiiCrypted: Cache TMDs and tickets 2017-05-20 20:42:44 +02:00
JosJuice ac5c82b36b DiscIO: Remove VolumeCreator
This file is pretty small now that it doesn't handle Wii
partitions anymore, so let's move its contents to Volume.cpp.
This is also more consistent with how blob creation works.
2017-05-19 18:33:21 +02:00
JosJuice 19b8f1c10a VolumeWiiCrypted: Replace ChangePartition with a partition parameter
By removing mutable state in VolumeWiiCrypted, this change makes
partition-related code simpler. It also gets rid of other ugly things,
like ISOProperties's "over 9000" loop that creates a list of
partitions by trying possible combinations, and DiscScrubber's
volume swapping that recreates the entire volume when it needs to
change partition.
2017-05-16 22:58:15 +02:00
Lioncash 552c0d8404 Common: Move byte swapping utilities into their own header
This moves all the byte swapping utilities into a header named Swap.h.

A dedicated header is much more preferable here due to the size of the
code itself. In general usage throughout the codebase, CommonFuncs.h was
generally only included for these functions anyway. These being in their
own header avoids dumping the lesser used utilities into scope. As well
as providing a localized area for more utilities related to byte
swapping in the future (should they be needed). This also makes it nicer
to identify which files depend on the byte swapping utilities in
particular.

Since this is a completely new header, moving the code uncovered a few
indirect includes, as well as making some other inclusions unnecessary.
2017-03-03 17:18:18 -05:00
Léo Lam 4d776ffa8f IOS/ES: Keep track of the active title properly
This changes ES to keep track of the active title properly,
just like IOS:

* It is NOT changed on resource manager open/close.
* It is reset on IOS reload.
* It is changed by ES_DIVerify and ES_Launch.

IOS stores the active title in a structure like this:

    struct ESTitleContext
    {
      Ticket* ticket;
      TMD* tmd;
      u32 active;
    };

With this commit, we also do keep the Ticket and TMD around. This
makes some of the DI ioctlvs (which return data about the current
active title) trivial to implement in the future.

This fixes the System Menu not being able to see update partitions
and also allows us to change Dolphin's active game info in the future.
2017-03-02 20:28:01 +01:00
Léo Lam c1a139e8ac Use ESFormats for TMDs
We already have a TMDReader, so let's actually use it.

And move ESFormats to IOS::ES, since it's definitely part of IOS.
This adds a DiscIO dependency on Core which will be fixed in a
follow-up PR.
2017-02-26 19:46:29 +01:00
JosJuice 49ec22bc42 DVDInterface: Translate Wii partition offsets for timing purposes
Until now, Dolphin has been using the wrong values
for calculating DVD timing for decrypted Wii reads
(which Wii games essentially always use).
2017-02-12 09:37:39 +01:00
JosJuice 66ea9f5cc1 DiscIO: Add GetRegion function and Region enum
Instead of needing different switch cases for
converting countries to regions in multiple places,
we now only need a single country-to-region switch case
(in DiscIO/Enums.cpp), and we get a nice Region type.
2017-01-02 20:57:11 +01:00