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| author | Nayana Bidari <nybidari@google.com> | 2020-03-20 12:00:21 -0700 |
|---|---|---|
| committer | Nayana Bidari <nybidari@google.com> | 2020-03-26 12:21:24 -0700 |
| commit | 92b9069b67b927cef25a1490ebd142ad6d65690d (patch) | |
| tree | 103b457232172e84fc3f2d6ea6b02ee553740f83 /pkg/sentry/socket/netstack/provider.go | |
| parent | 01ac53099fedf7dd5da01a50e60f3dfa2eb17892 (diff) | |
Support owner matching for iptables.
This feature will match UID and GID of the packet creator, for locally
generated packets. This match is only valid in the OUTPUT and POSTROUTING
chains. Forwarded packets do not have any socket associated with them.
Packets from kernel threads do have a socket, but usually no owner.
Diffstat (limited to 'pkg/sentry/socket/netstack/provider.go')
| -rw-r--r-- | pkg/sentry/socket/netstack/provider.go | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/pkg/sentry/socket/netstack/provider.go b/pkg/sentry/socket/netstack/provider.go index 5f181f017..eb090e79b 100644 --- a/pkg/sentry/socket/netstack/provider.go +++ b/pkg/sentry/socket/netstack/provider.go @@ -126,6 +126,12 @@ func (p *provider) Socket(t *kernel.Task, stype linux.SockType, protocol int) (* ep, e = eps.Stack.NewRawEndpoint(transProto, p.netProto, wq, associated) } else { ep, e = eps.Stack.NewEndpoint(transProto, p.netProto, wq) + + // Assign task to PacketOwner interface to get the UID and GID for + // iptables owner matching. + if e == nil { + ep.SetOwner(t) + } } if e != nil { return nil, syserr.TranslateNetstackError(e) |