Extract a library for common binder-related things
Initially this just unifies the various copies of we have of
new_binder_exception(), and adds a variation for service-specific
errors. (I thought this would help me solve my problem with missing
error info, but it turns out I was wrong.) I'm intending to move more
things here though to facilitate reuse.
Bug: 186126194
Test: atest -p
Change-Id: I82187903b55c4cd64307065761e1e03c4e6012f4
diff --git a/authfs/fd_server/src/main.rs b/authfs/fd_server/src/main.rs
index 7e551a3..12f013c 100644
--- a/authfs/fd_server/src/main.rs
+++ b/authfs/fd_server/src/main.rs
@@ -30,7 +30,6 @@
use std::cmp::min;
use std::collections::BTreeMap;
use std::convert::TryInto;
-use std::ffi::CString;
use std::fs::File;
use std::io;
use std::os::unix::fs::FileExt;
@@ -43,13 +42,10 @@
use authfs_aidl_interface::binder::{
BinderFeatures, ExceptionCode, Interface, Result as BinderResult, Status, StatusCode, Strong,
};
+use binder_common::new_binder_exception;
const RPC_SERVICE_PORT: u32 = 3264; // TODO: support dynamic port for multiple fd_server instances
-fn new_binder_exception<T: AsRef<str>>(exception: ExceptionCode, message: T) -> Status {
- Status::new_exception(exception, CString::new(message.as_ref()).as_deref().ok())
-}
-
fn validate_and_cast_offset(offset: i64) -> Result<u64, Status> {
offset.try_into().map_err(|_| {
new_binder_exception(ExceptionCode::ILLEGAL_ARGUMENT, format!("Invalid offset: {}", offset))