initial version for cifs

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Empire Phoenix 2024-09-05 02:12:19 +02:00
parent 06749137df
commit d71e515050
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checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
dependencies = [
"byteorder",
"zerocopy-derive",
]
[[package]]
name = "zerocopy-derive"
version = "0.7.35"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
dependencies = [
"proc-macro2",
"quote",
"syn",
]

18
Cargo.toml Normal file
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@ -0,0 +1,18 @@
[package]
name = "automount"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
anyhow = "1.0.86"
dns-lookup = "2.0.4"
mountinfo = "0.2.0"
ping = "0.5.2"
sys-mount = "3.0.1"
[[bin]]
name = "automount"
test = false
bench = false

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src/main.rs Normal file
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use anyhow::Result;
use dns_lookup::lookup_host;
use mountinfo::{MountInfo, ReadWrite, MountPoint};
use ping::{dgramsock, rawsock::ping};
use std::{ffi::OsStr, fs, path::PathBuf, sync::mpsc::{self, Receiver, Sender}, thread, time::Duration};
use sys_mount::{unmount, UnmountFlags};
fn main() {
let mtab = MountInfo::new().unwrap();
let mounting_points = mtab.mounting_points;
let relevant_mounts = mounting_points.iter().filter(|&mount_point| {
match &mount_point.fstype {
mountinfo::FsType::Other(fsstring) => match fsstring.as_str() {
"cifs" => {
true
},
_ => false
},
_ => false
}
});
println!("Scanning for hanging mounts");
for mount_point in relevant_mounts {
let path = mount_point.path.to_owned();
let fstype = match &mount_point.fstype {
mountinfo::FsType::Other(fsstring) => fsstring,
_ => ""
};
let what = &mount_point.what;
println!("Processing {fstype} @ {path:?} from {what}");
process_mount(fstype, what, path);
}
}
fn process_mount(fstype: &str, what: &String, path: PathBuf) {
match fstype {
"cifs" => {
let path_parts = what.replace("//","/");
let host = path_parts.split("/").nth(1).unwrap();
println!("Checking ping to host {host}");
let ips = lookup_host(host).unwrap();
let ip = ips.first().unwrap();
println!("Using ip {ip:?}");
match ping::ping(ip.to_owned(),Some(Duration::from_millis(100)),Some(10),None, None, None) {
Ok(_) => {
println!("Ping ok, proceeding")
},
Err(err) => {
println!("Ping failed with errror {err:?} -> unmount");
remove_mount(path.as_os_str());
},
}
},
_ => {}
}
let timeout = Duration::from_millis(500);
println!("Checking file access timeout {timeout:?}");
let (sender, receiver) = mpsc::channel();
let path_copy = path.clone();
thread::spawn(move || {
match fs::read_dir(path_copy) {
Ok(_) => {
match sender.send(()){
Ok(_) => {},
Err(err) => {
println!("Listing succeded, but probably after timeout, ignore me {err:?}")
},
}
},
Err(err) => {
println!("Listing failed, probably after timeout, ignore me {err:?}")
},
}
});
let read_successful = receiver.recv_timeout(timeout);
match read_successful {
Ok(_) => {
println!("passed, mount still valid")
},
Err(err) => {
println!("Listing failed with errror {err:?} -> unmount");
remove_mount(path.as_os_str());
},
}
}
fn remove_mount(path: &OsStr){
//unmount(path, UnmountFlags::FORCE | UnmountFlags::DETACH).unwrap()
}