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
..
bindings	rust: cred: add Rust abstraction for struct cred	2024-09-30 13:02:28 +02:00
helpers	rust: cred: add Rust abstraction for struct cred	2024-09-30 13:02:28 +02:00
kernel	rust: cred: add Rust abstraction for struct cred	2024-09-30 13:02:28 +02:00
macros	kbuild: rust: replace proc macros dependency on core.o with the version text	2024-09-05 22:44:51 +02:00
uapi	rust: allow dead_code for never constructed bindings	2024-07-10 10:28:51 +02:00
.gitignore	rust: support running Rust documentation tests as KUnit ones	2023-07-19 09:32:53 -06:00
bindgen_parameters	rust: Ignore preserve-most functions	2023-12-13 01:09:55 +01:00
build_error.rs	rust: add build_error crate	2022-12-04 01:59:16 +01:00
compiler_builtins.rs	rust: add intrinsics to fix -Os builds	2024-08-10 00:05:10 +02:00
exports.c	rust: kbuild: auto generate helper exports	2024-08-19 11:09:02 +02:00
Makefile	kbuild: rust: replace proc macros dependency on core.o with the version text	2024-09-05 22:44:51 +02:00