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10 commits

Author SHA1 Message Date
Andreas Kling
b481132418 Kernel: Make UserOrKernelBuffer return KResult from read/write/memset 
This allows us to simplify a whole bunch of call sites with TRY(). :^)
 2021-09-07 13:53:14 +02:00
Andreas Kling
1101994fad Kernel: Wrap ISO9660FS directory traversal in TRY() 2021-09-06 20:28:40 +02:00
Andreas Kling
7a8061ba0c Kernel: Use TRY() in ISO9660FileSystem 2021-09-06 02:06:49 +02:00
sin-ack
566c5d1e99 AK+Kernel: Move KResult.h to Kernel/API for userspace access 
This commit moves the KResult and KResultOr objects to Kernel/API to
signify that they may now be freely used by userspace code at points
where a syscall-related error result is to be expected. It also exposes
KResult and KResultOr to the global namespace to make it nicer to use
for userspace code.
 2021-09-05 12:54:48 +02:00
Andreas Kling
ae197deb6b Kernel: Strongly typed user & group ID's 
Prior to this change, both uid_t and gid_t were typedef'ed to `u32`.
This made it easy to use them interchangeably. Let's not allow that.

This patch adds UserID and GroupID using the AK::DistinctNumeric
mechanism we've already been employing for pid_t/ProcessID.
 2021-08-29 01:09:19 +02:00
sin-ack
61c0e3ca92 Kernel: Simplify OOM handling in ISO9660FileSystem 2021-08-15 15:41:02 +02:00
Andreas Kling
5416fa252a Kernel: Add tightly typed ISO9660Inode::fs() overload 
We know the fs() is always an ISO9660FS, so let's be nice and make fs()
return that when called on an ISO9660Inode. :^)
 2021-08-15 12:50:22 +02:00
Andreas Kling
d30d776ca4 Kernel: Make FileSystem::initialize() return KResult 
This forced me to also come up with error codes for a bunch of
situations where we'd previously just panic the kernel.
 2021-08-14 15:19:00 +02:00
Andreas Kling
ef2720bcad Kernel: Make Inode::lookup() return a KResultOr<NonnullRefPtr<Inode>> 
This allows file systems to return arbitrary error codes instead of just
an Inode or not an Inode.
 2021-08-14 13:34:59 +02:00
sin-ack
0d468f2282 Kernel: Implement a ISO 9660 filesystem reader :^) 
This commit implements the ISO 9660 filesystem as specified in ECMA 119.
Currently, it only supports the base specification and Joliet or Rock
Ridge support is not present. The filesystem will normalize all
filenames to be lowercase (same as Linux).

The filesystem can be mounted directly from a file. Loop devices are
currently not supported by SerenityOS.

Special thanks to Lubrsi for testing on real hardware and providing
profiling help.

Co-Authored-By: Luke <luke.wilde@live.co.uk>
 2021-08-07 15:21:58 +02:00