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Kernel: Add sid and pgid to Credentials

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There are places in the kernel that would like to have access
to `pgid` credentials in certain circumstances.

I haven't found any use cases for `sid` yet, but `sid` and `pgid` are
both changed with `sys$setpgid`, so it seemed sensical to add it.

In Linux, `man 7 credentials` also mentions both the session id and
process group id, so this isn't unprecedented.
This commit is contained in:
yyny 2022-12-19 21:21:51 +01:00 • committed by Andreas Kling
parent 456a8436b5
commit 9ca979846c
6 changed files with 62 additions and 18 deletions
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2
Kernel/Process.cpp
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@ -311,7 +311,7 @@ ErrorOr<NonnullLockRefPtr<Process>> Process::try_create(LockRefPtr<Thread>& firs
}
auto unveil_tree = UnveilNode { TRY(KString::try_create("/"sv)), UnveilMetadata(TRY(KString::try_create("/"sv))) };
auto exec_unveil_tree = UnveilNode { TRY(KString::try_create("/"sv)), UnveilMetadata(TRY(KString::try_create("/"sv))) };
auto credentials = TRY(Credentials::create(uid, gid, uid, gid, uid, gid, {}));
auto credentials = TRY(Credentials::create(uid, gid, uid, gid, uid, gid, {}, fork_parent ? fork_parent->sid() : 0, fork_parent ? fork_parent->pgid() : 0));
auto process = TRY(adopt_nonnull_lock_ref_or_enomem(new (nothrow) Process(move(name), move(credentials), ppid, is_kernel_process, move(current_directory), move(executable), tty, move(unveil_tree), move(exec_unveil_tree))));
TRY(process->attach_resources(new_address_space.release_nonnull(), first_thread, fork_parent));
return process;