diff options
Diffstat (limited to 'pkg/sentry/fs/proc/sys_net.go')
| -rw-r--r-- | pkg/sentry/fs/proc/sys_net.go | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/pkg/sentry/fs/proc/sys_net.go b/pkg/sentry/fs/proc/sys_net.go index 1d09afdd7..4893af56b 100644 --- a/pkg/sentry/fs/proc/sys_net.go +++ b/pkg/sentry/fs/proc/sys_net.go @@ -403,7 +403,7 @@ type ipForwarding struct { // enabled stores the IPv4 forwarding state on save. // We must save/restore this here, since a netstack instance // is created on restore. - enabled *bool + enabled bool } func newIPForwardingInode(ctx context.Context, msrc *fs.MountSource, s inet.Stack) *fs.Inode { @@ -461,13 +461,8 @@ func (f *ipForwardingFile) Read(ctx context.Context, _ *fs.File, dst usermem.IOS return 0, io.EOF } - if f.ipf.enabled == nil { - enabled := f.stack.Forwarding(ipv4.ProtocolNumber) - f.ipf.enabled = &enabled - } - val := "0\n" - if *f.ipf.enabled { + if f.ipf.enabled { // Technically, this is not quite compatible with Linux. Linux // stores these as an integer, so if you write "2" into // ip_forward, you should get 2 back. @@ -494,11 +489,8 @@ func (f *ipForwardingFile) Write(ctx context.Context, _ *fs.File, src usermem.IO if err != nil { return n, err } - if f.ipf.enabled == nil { - f.ipf.enabled = new(bool) - } - *f.ipf.enabled = v != 0 - return n, f.stack.SetForwarding(ipv4.ProtocolNumber, *f.ipf.enabled) + f.ipf.enabled = v != 0 + return n, f.stack.SetForwarding(ipv4.ProtocolNumber, f.ipf.enabled) } // portRangeInode implements fs.InodeOperations. It provides and allows |