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virtio-devices, vmm: Fix the '--seccomp false' option

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We are relying on applying empty 'seccomp' filters to support the
'--seccomp false' option, which will be treated as an error with the
updated 'seccompiler' crate. This patch fixes this issue by explicitly
checking whether the 'seccomp' filter is empty before applying the
filter.

Signed-off-by: Bo Chen <chen.bo@intel.com>
This commit is contained in:
Bo Chen
2021-08-16 17:20:11 -07:00
committed by Sebastien Boeuf
parent 2d2463ce04
commit 7d38a1848b
16 changed files with 120 additions and 56 deletions
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vmm/src/vm.rs
+14 -10
View File
@@ -1880,11 +1880,13 @@ impl Vm {
thread::Builder::new()
.name("signal_handler".to_string())
.spawn(move || {
if let Err(e) = apply_filter(&signal_handler_seccomp_filter)
.map_err(Error::ApplySeccompFilter)
{
error!("Error applying seccomp filter: {:?}", e);
return;
if !signal_handler_seccomp_filter.is_empty() {
if let Err(e) = apply_filter(&signal_handler_seccomp_filter)
.map_err(Error::ApplySeccompFilter)
{
error!("Error applying seccomp filter: {:?}", e);
return;
}
}
Vm::os_signal_handler(signals, console, on_tty, exit_evt);
@@ -2442,11 +2444,13 @@ impl Snapshottable for Vm {
thread::Builder::new()
.name("signal_handler".to_string())
.spawn(move || {
if let Err(e) = apply_filter(&signal_handler_seccomp_filter)
.map_err(Error::ApplySeccompFilter)
{
error!("Error applying seccomp filter: {:?}", e);
return;
if !signal_handler_seccomp_filter.is_empty() {
if let Err(e) = apply_filter(&signal_handler_seccomp_filter)
.map_err(Error::ApplySeccompFilter)
{
error!("Error applying seccomp filter: {:?}", e);
return;
}
}
Vm::os_signal_handler(signals, console, on_tty, exit_evt)