diff options
author | Michael Pratt <mpratt@google.com> | 2019-11-04 10:06:00 -0800 |
---|---|---|
committer | gVisor bot <gvisor-bot@google.com> | 2019-11-04 10:07:52 -0800 |
commit | b23b36e701c40827065217f4652a51eebc5f9913 (patch) | |
tree | 136ce7a322c60c2b29480c0b6bd0c3d1a8065ac1 /pkg/sentry/socket/netlink/route | |
parent | 3b4f5445d03f7d2f170d68a8a4969b8acbad773e (diff) |
Add NETLINK_KOBJECT_UEVENT socket support
NETLINK_KOBJECT_UEVENT sockets send udev-style messages for device events.
gVisor doesn't have any device events, so our sockets don't need to do anything
once created.
systemd's device manager needs to be able to create one of these sockets. It
also wants to install a BPF filter on the socket. Since we'll never send any
messages, the filter would never be invoked, thus we just fake it out.
Fixes #1117
Updates #1119
PiperOrigin-RevId: 278405893
Diffstat (limited to 'pkg/sentry/socket/netlink/route')
-rw-r--r-- | pkg/sentry/socket/netlink/route/protocol.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/pkg/sentry/socket/netlink/route/protocol.go b/pkg/sentry/socket/netlink/route/protocol.go index cc70ac237..6b4a0ecf4 100644 --- a/pkg/sentry/socket/netlink/route/protocol.go +++ b/pkg/sentry/socket/netlink/route/protocol.go @@ -61,6 +61,11 @@ func (p *Protocol) Protocol() int { return linux.NETLINK_ROUTE } +// CanSend implements netlink.Protocol.CanSend. +func (p *Protocol) CanSend() bool { + return true +} + // dumpLinks handles RTM_GETLINK + NLM_F_DUMP requests. func (p *Protocol) dumpLinks(ctx context.Context, hdr linux.NetlinkMessageHeader, data []byte, ms *netlink.MessageSet) *syserr.Error { // NLM_F_DUMP + RTM_GETLINK messages are supposed to include an |