Feat(netns): 添加netns-rs来管理网络命名空间 (#69)

* 添加netns-rs来管理网络命名空间

* fix: cargo hakari generate

---------

Co-authored-by: Samuka007 <samuka007@dragonos.org>

Cargo.lock

@@ -521,6 +521,7 @@ dependencies = [
  "lazy_static",
  "log",
  "my-workspace-hack",
+ "netns-rs",
  "serde_json",
 ]
 
@@ -1625,6 +1626,15 @@ version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
+[[package]]
+name = "memoffset"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "mime"
 version = "0.3.17"
@@ -1703,6 +1713,29 @@ dependencies = [
  "tempfile",
 ]
 
+[[package]]
+name = "netns-rs"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23541694f1d7d18cd1a0da3a1352a6ea48b01cbb4a8e7a6e547963823fd5276e"
+dependencies = [
+ "nix",
+ "thiserror 1.0.69",
+]
+
+[[package]]
+name = "nix"
+version = "0.23.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f3790c00a0150112de0f4cd161e3d7fc4b2d8a5542ffc35f099a2562aecb35c"
+dependencies = [
+ "bitflags 1.3.2",
+ "cc",
+ "cfg-if",
+ "libc",
+ "memoffset",
+]
+
 [[package]]
 name = "nom"
 version = "5.1.3"

crates/cni/Cargo.toml

@@ -10,5 +10,5 @@ serde_json = "1.0"
 my-workspace-hack = { version = "0.1", path = "../my-workspace-hack" }
 log = "0.4.27"
 dotenv = "0.15.0"
-
+netns-rs = "0.1.0"
 lazy_static = "1.4.0"

crates/cni/src/lib.rs

@@ -1,6 +1,7 @@
 type Err = Box<dyn std::error::Error>;
 
 use lazy_static::lazy_static;
+use netns_rs::NetNs;
 use serde_json::Value;
 use std::{
     fmt::Error,
@@ -85,15 +86,7 @@ pub fn create_cni_network(cid: String, ns: String) -> Result<(String, String), E
     let path = get_path(netns.as_str());
     let mut ip = String::new();
 
-    let output = std::process::Command::new("ip")
-        .arg("netns")
-        .arg("add")
-        .arg(&netns)
-        .output()?;
-
-    if !output.status.success() {
-        return Err(Box::new(Error));
-    }
+    create_netns(&netns);
 
     let bin = CNI_BIN_DIR.as_str();
     let cnitool = CNI_TOOL.as_str();
@@ -146,11 +139,32 @@ pub fn delete_cni_network(ns: &str, cid: &str) {
         .arg(&path)
         .env("CNI_PATH", bin)
         .output();
-    let _output = std::process::Command::new("ip")
-        .arg("netns")
-        .arg("delete")
-        .arg(&netns)
-        .output();
+    delete_netns(&netns);
+}
+
+fn create_netns(namespace_name: &str) {
+    match NetNs::new(namespace_name) {
+        Ok(ns) => {
+            log::info!("Created netns: {}", ns);
+        }
+        Err(e) => {
+            log::error!("Error creating netns: {}", e);
+        }
+    }
+}
+
+fn delete_netns(namespace_name: &str) {
+    match NetNs::get(namespace_name) {
+        Ok(ns) => {
+            ns.remove()
+                .map_err(|e| log::error!("Error deleting netns: {}", e))
+                .unwrap();
+            log::info!("Deleted netns: {}", namespace_name);
+        }
+        Err(e) => {
+            log::error!("Error getting netns: {}, NotFound", e);
+        }
+    }
 }
 
 fn dir_exists(dirname: &Path) -> bool {

crates/my-workspace-hack/Cargo.toml

@@ -51,18 +51,18 @@ tracing-core = { version = "0.1", default-features = false, features = ["std"] }
 
 [target.x86_64-unknown-linux-gnu.dependencies]
 getrandom = { version = "0.2", default-features = false, features = ["std"] }
-libc = { version = "0.2" }
+libc = { version = "0.2", features = ["extra_traits"] }
 
 [target.x86_64-unknown-linux-gnu.build-dependencies]
 getrandom = { version = "0.2", default-features = false, features = ["std"] }
-libc = { version = "0.2" }
+libc = { version = "0.2", features = ["extra_traits"] }
 
 [target.aarch64-unknown-linux-gnu.dependencies]
 getrandom = { version = "0.2", default-features = false, features = ["std"] }
-libc = { version = "0.2" }
+libc = { version = "0.2", features = ["extra_traits"] }
 
 [target.aarch64-unknown-linux-gnu.build-dependencies]
 getrandom = { version = "0.2", default-features = false, features = ["std"] }
-libc = { version = "0.2" }
+libc = { version = "0.2", features = ["extra_traits"] }
 
 ### END HAKARI SECTION