executor: add NIC PCI pass-through VF support

Add support for moving a NIC PCI pass-through VF into Syzkaller's network
namespace so that it will tested. As DEVLINK support is triggered by
setting the pass-through device to "addr=0x10", NIC PCI pass-through VF
support will be triggered by setting the device to "addr=0x11".

If a NIC PCI pass-through VF is detected in do_sandbox, setup a staging
namespace before the fork() and transfer the NIC VF interface to it.
After the fork() and in the child transfer the NIC VF interface to
Syzkaller's network namespace and rename the interface to netpci0 so
that it will be tested.

Signed-off-by: George Kennedy <george.kennedy@oracle.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/pkg/repro/repro.go b/pkg/repro/repro.go
index fe20c7330..d614cdfb6 100644
--- a/pkg/repro/repro.go
+++ b/pkg/repro/repro.go
@@ -192,6 +192,9 @@ func createStartOptions(cfg *mgrconfig.Config, features *host.Features, crashTyp
 		if !features[host.FeatureDevlinkPCI].Enabled {
 			opts.DevlinkPCI = false
 		}
+		if !features[host.FeatureNicVF].Enabled {
+			opts.NicVF = false
+		}
 		if !features[host.FeatureUSBEmulation].Enabled {
 			opts.USB = false
 		}
@@ -759,6 +762,7 @@ var cSimplifies = append(progSimplifies, []Simplify{
 		opts.BinfmtMisc = false
 		opts.CloseFDs = false
 		opts.DevlinkPCI = false
+		opts.NicVF = false
 		opts.USB = false
 		opts.VhciInjection = false
 		opts.Wifi = false
@@ -816,6 +820,13 @@ var cSimplifies = append(progSimplifies, []Simplify{
 		return true
 	},
 	func(opts *csource.Options) bool {
+		if !opts.NicVF {
+			return false
+		}
+		opts.NicVF = false
+		return true
+	},
+	func(opts *csource.Options) bool {
 		if !opts.USB {
 			return false
 		}