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lanzaboote: handle errors in print_logo

This commit is contained in:
Julian Stecklina 2022-11-25 18:08:54 +01:00
parent 6bc66052c2
commit 3779e81b20
1 changed files with 9 additions and 10 deletions
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15
rust/lanzaboote/src/main.rs
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@ -17,7 +17,7 @@ use uefi::{
loaded_image::LoadedImage, loaded_image::LoadedImage,
media::file::{File, FileAttribute, FileMode, RegularFile}, media::file::{File, FileAttribute, FileMode, RegularFile},
}, },
CString16, Error, CString16, Result,
}; };
use crate::{ use crate::{
@ -25,11 +25,11 @@ use crate::{
uefi_helpers::{booted_image_cmdline, booted_image_file, read_all}, uefi_helpers::{booted_image_cmdline, booted_image_file, read_all},
}; };
fn print_logo(output: &mut Output) { /// Print the startup logo on boot.
output.clear().unwrap(); fn print_logo(output: &mut Output) -> Result<()> {
output.clear()?;
output output.output_string(cstr16!(
.output_string(cstr16!(
" "
_ _ _\r _ _ _\r
| | | | | |\r | | | | | |\r
@ -40,7 +40,6 @@ fn print_logo(output: &mut Output) {
\r \r
" "
)) ))
.unwrap();
} }
/// The configuration that is embedded at build time. /// The configuration that is embedded at build time.
@ -59,7 +58,7 @@ struct EmbeddedConfiguration {
} }
impl EmbeddedConfiguration { impl EmbeddedConfiguration {
fn new(file: &mut RegularFile) -> Result<Self, Error> { fn new(file: &mut RegularFile) -> Result<Self> {
file.set_position(0)?; file.set_position(0)?;
let file_data = read_all(file)?; let file_data = read_all(file)?;
@ -79,7 +78,7 @@ impl EmbeddedConfiguration {
fn main(handle: Handle, mut system_table: SystemTable<Boot>) -> Status { fn main(handle: Handle, mut system_table: SystemTable<Boot>) -> Status {
uefi_services::init(&mut system_table).unwrap(); uefi_services::init(&mut system_table).unwrap();
print_logo(system_table.stdout()); print_logo(system_table.stdout()).unwrap();
let config: EmbeddedConfiguration = let config: EmbeddedConfiguration =
EmbeddedConfiguration::new(&mut booted_image_file(system_table.boot_services()).unwrap()) EmbeddedConfiguration::new(&mut booted_image_file(system_table.boot_services()).unwrap())