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agent: setup the "lo" interface run agent as init

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It should setup the "lo" interface when agent run
as init porcess.

Fixes: #508

Signed-off-by: fupan.lfp <fupan.lfp@antfin.com>
This commit is contained in:
fupan.lfp 2020-08-12 20:33:13 +08:00
parent 50c76b696f
commit e79c57274b
1 changed files with 11 additions and 2 deletions
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13
src/agent/src/main.rs
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@ -28,6 +28,7 @@ extern crate slog;
#[macro_use] #[macro_use]
extern crate netlink; extern crate netlink;
use crate::netlink::{RtnlHandle, NETLINK_ROUTE};
use nix::fcntl::{self, OFlag}; use nix::fcntl::{self, OFlag};
use nix::sys::socket::{self, AddressFamily, SockAddr, SockFlag, SockType}; use nix::sys::socket::{self, AddressFamily, SockAddr, SockFlag, SockType};
use nix::sys::wait::{self, WaitStatus}; use nix::sys::wait::{self, WaitStatus};
@ -121,7 +122,8 @@ fn main() -> Result<()> {
let agentConfig = AGENT_CONFIG.clone(); let agentConfig = AGENT_CONFIG.clone();
if unistd::getpid() == Pid::from_raw(1) { let init_mode = unistd::getpid() == Pid::from_raw(1);
if init_mode {
// dup a new file descriptor for this temporary logger writer, // dup a new file descriptor for this temporary logger writer,
// since this logger would be dropped and it's writer would // since this logger would be dropped and it's writer would
// be closed out of this code block. // be closed out of this code block.
@ -206,11 +208,18 @@ fn main() -> Result<()> {
}; };
// Initialize unique sandbox structure. // Initialize unique sandbox structure.
let s = Sandbox::new(&logger).map_err(|e| { let mut s = Sandbox::new(&logger).map_err(|e| {
error!(logger, "Failed to create sandbox with error: {:?}", e); error!(logger, "Failed to create sandbox with error: {:?}", e);
e e
})?; })?;
if init_mode {
let mut rtnl = RtnlHandle::new(NETLINK_ROUTE, 0).unwrap();
rtnl.handle_localhost()?;
s.rtnl = Some(rtnl);
}
let sandbox = Arc::new(Mutex::new(s)); let sandbox = Arc::new(Mutex::new(s));
setup_signal_handler(&logger, sandbox.clone()).unwrap(); setup_signal_handler(&logger, sandbox.clone()).unwrap();