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utils: Add function to check vhost-vsock

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Add function to check if the host-system has the vhost-vsock
kernel module.

Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
This commit is contained in:
Archana Shinde 2023-02-03 15:41:59 -08:00
parent 968f5b4031
commit d3bb254188
1 changed files with 32 additions and 0 deletions
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32
src/tools/kata-ctl/src/utils.rs
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@ -144,6 +144,12 @@ pub fn get_generic_cpu_details(cpu_info_file: &str) -> Result<(String, String)>
Ok((vendor, model))
}
const VHOST_VSOCK_DEVICE: &str = "/dev/vhost-vsock";
pub fn supports_vsocks(vsock_path: &str) -> Result<bool> {
let metadata = fs::metadata(vsock_path)?;
Ok(metadata.is_file())
}
#[cfg(test)]
mod tests {
use super::*;
@ -283,4 +289,30 @@ mod tests {
);
assert_eq!(actual, expected);
}
#[test]
fn check_supports_vsocks_valid() {
let dir = tempdir().unwrap();
let file_path = dir.path().join("vhost-vsock");
let path = file_path.clone();
let _file = fs::File::create(file_path).unwrap();
let res = supports_vsocks(path.to_str().unwrap()).unwrap();
assert!(res);
}
#[test]
fn check_supports_vsocks_dir() {
let dir = tempdir().unwrap();
let file_path = dir.path().join("vhost-vsock");
let path = file_path.clone();
let _dir = fs::create_dir(file_path).unwrap();
let res = supports_vsocks(path.to_str().unwrap()).unwrap();
assert!(!res);
}
#[test]
fn check_supports_vsocks_missing_file() {
let res = supports_vsocks("/xyz/vhost-vsock");
assert!(res.is_err());
}
}