Wedson Almeida Filho a3df991d3d rust: cred: add Rust abstraction for struct cred ... Add a wrapper around `struct cred` called `Credential`, and provide functionality to get the `Credential` associated with a `File`. Rust Binder must check the credentials of processes when they attempt to perform various operations, and these checks usually take a `&Credential` as parameter. The security_binder_set_context_mgr function would be one example. This patch is necessary to access these security_* methods from Rust. This Rust abstraction makes the following assumptions about the C side: * `struct cred` is refcounted with `get_cred`/`put_cred`. * It's okay to transfer a `struct cred` across threads, that is, you do not need to call `put_cred` on the same thread as where you called `get_cred`. * The `euid` field of a `struct cred` never changes after initialization. * The `f_cred` field of a `struct file` never changes after initialization. Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com> Co-developed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Trevor Gross <tmgross@umich.edu> Reviewed-by: Benno Lossin <benno.lossin@proton.me> Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com> Reviewed-by: Gary Guo <gary@garyguo.net> Signed-off-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20240915-alice-file-v10-4-88484f7a3dcf@google.com Reviewed-by: Kees Cook <kees@kernel.org> Reviewed-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Christian Brauner <brauner@kernel.org>		2024-09-30 13:02:28 +02:00
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blk.c
bug.c
build_assert.c
build_bug.c
cred.c	rust: cred: add Rust abstraction for struct cred	2024-09-30 13:02:28 +02:00
err.c
fs.c	rust: file: add Rust abstraction for struct file	2024-09-30 13:02:28 +02:00
helpers.c	rust: cred: add Rust abstraction for struct cred	2024-09-30 13:02:28 +02:00
kunit.c
mutex.c
page.c
rbtree.c	rust: rbtree: add red-black tree implementation backed by the C version	2024-08-31 17:35:08 +02:00
refcount.c
signal.c
slab.c
spinlock.c
task.c
uaccess.c
wait.c
workqueue.c