Add option to test vsock

Signed-off-by: Alexander V. Nikolaev <[email protected]>

src/bin/givc-admin.rs

@@ -1,6 +1,7 @@
 use clap::Parser;
 use givc::admin;
 use givc::endpoint::TlsConfig;
+use givc::utils::vsock::parse_vsock_addr;
 use givc_common::pb::reflection::ADMIN_DESCRIPTOR;
 use std::net::SocketAddr;
 use std::path::PathBuf;
@@ -16,9 +17,12 @@ struct Cli {
     #[arg(long, env = "PORT", default_missing_value = "9000", value_parser = clap::value_parser!(u16).range(1..))]
     port: u16,
 
-    #[arg(long, help = "Additionally listen UNIX socket")]
+    #[arg(long, help = "Additionally listen UNIX socket (path)")]
     unix: Option<String>,
 
+    #[arg(long, help = "Additionally listen Vsock socket (cid:port format)")]
+    vsock: Option<String>,
+
     #[arg(long, env = "TLS", default_missing_value = "false")]
     use_tls: bool,
 
@@ -84,6 +88,11 @@ async fn main() -> std::result::Result<(), Box<dyn std::error::Error>> {
         addrs.push(unix_sock_addr)
     }
 
+    if let Some(vsock) = cli.vsock {
+        let vsock_addr = parse_vsock_addr(&vsock)?.into();
+        addrs.push(vsock_addr)
+    }
+
     let listener = tokio_listener::Listener::bind_multiple(&addrs, &sys_opts, &user_opts).await?;
 
     builder

src/bin/givc-cli.rs

@@ -1,7 +1,9 @@
 use clap::{Parser, Subcommand};
 use givc::endpoint::TlsConfig;
 use givc::types::*;
+use givc::utils::vsock::parse_vsock_addr;
 use givc_client::AdminClient;
+use givc_common::address::EndpointAddress;
 use serde::ser::Serialize;
 use std::path::PathBuf;
 use std::time;
@@ -23,6 +25,9 @@ struct Cli {
     #[arg(long, env = "NAME", default_missing_value = "admin.ghaf")]
     name: String, // for TLS service name
 
+    #[arg(long)]
+    vsock: Option<String>,
+
     #[arg(long, env = "CA_CERT")]
     cacert: Option<PathBuf>,
 
@@ -130,7 +135,14 @@ async fn main() -> std::result::Result<(), Box<dyn std::error::Error>> {
             },
         ))
     };
-    let admin = AdminClient::new(cli.addr, cli.port, tls);
+
+    // FIXME; big kludge, but allow to test vsock connection
+    let admin = if let Some(vsock) = cli.vsock {
+        info!("Connection diverted to VSock");
+        AdminClient::from_endpoint_address(EndpointAddress::Vsock(parse_vsock_addr(&vsock)?), tls)
+    } else {
+        AdminClient::new(cli.addr, cli.port, tls)
+    };
 
     match cli.command {
         Commands::Test { test } => test_subcommands(test, admin).await?,

src/utils/mod.rs

@@ -1,4 +1,5 @@
 pub mod auth;
 pub mod naming;
 pub mod tonic;
+pub mod vsock;
 pub mod x509;

src/utils/vsock.rs

@@ -0,0 +1,14 @@
+use anyhow::bail;
+use tokio_vsock::{VsockAddr, VMADDR_CID_HOST, VMADDR_CID_LOCAL};
+
+pub fn parse_vsock_addr(addr: &str) -> anyhow::Result<VsockAddr> {
+    if let Some((cid, port)) = addr.split_once(":") {
+        let cid = match cid {
+            "local" => VMADDR_CID_LOCAL,
+            "host" => VMADDR_CID_HOST,
+            cid => cid.parse()?,
+        };
+        return Ok(VsockAddr::new(cid, port.parse()?));
+    };
+    bail!("Address {addr} should be in CID:PORT format")
+}