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main: Add seccomp support

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This change introduces a new CLI option --seccomp. This allows the user
to enable/disable the seccomp filters when needed. Because the user now
has the possibility to disable the seccomp filters, and because the
Cloud-Hypervisor project wants to enforce the maximum security by
default, the seccomp filters are now applied by default.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf 2020-03-20 16:11:45 +01:00
parent f1a23d712f
commit 5120c275a2
1 changed files with 22 additions and 1 deletions
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23
src/main.rs
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@ -262,6 +262,13 @@ fn create_app<'a, 'b>(
.conflicts_with_all(&["net-backend", "kernel"])
.min_values(1),
)
.arg(
Arg::with_name("seccomp")
.long("seccomp")
.takes_value(true)
.possible_values(&["true", "false"])
.default_value("true"),
)
}
fn start_vmm(cmd_arguments: ArgMatches) {
@ -293,13 +300,27 @@ fn start_vmm(cmd_arguments: ArgMatches) {
let api_evt = EventFd::new(EFD_NONBLOCK).expect("Cannot create API EventFd");
let http_sender = api_request_sender.clone();
let seccomp_level = if let Some(seccomp_value) = cmd_arguments.value_of("seccomp") {
match seccomp_value {
"true" => SeccompLevel::Advanced,
"false" => SeccompLevel::None,
_ => {
eprintln!("Invalid parameter {} for \"--seccomp\" flag", seccomp_value);
process::exit(1);
}
}
} else {
SeccompLevel::Advanced
};
let vmm_thread = match vmm::start_vmm_thread(
env!("CARGO_PKG_VERSION").to_string(),
api_socket_path,
api_evt.try_clone().unwrap(),
http_sender,
api_request_receiver,
&SeccompLevel::None,
&seccomp_level,
) {
Ok(t) => t,
Err(e) => {