diff options
| author | gVisor bot <gvisor-bot@google.com> | 2020-02-11 12:58:13 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-02-11 12:59:11 -0800 |
| commit | b8e22e241cab625d2809034c74d0ff808b948b4c (patch) | |
| tree | bcb750ceb1341495e22bb3fa1ad2110a0b215ddc /pkg/tcpip/stack/stack.go | |
| parent | 9be46e55c2aadcf40c9abd4b515c3fe899d9fa08 (diff) | |
Disallow duplicate NIC names.
PiperOrigin-RevId: 294500858
Diffstat (limited to 'pkg/tcpip/stack/stack.go')
| -rw-r--r-- | pkg/tcpip/stack/stack.go | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/pkg/tcpip/stack/stack.go b/pkg/tcpip/stack/stack.go index b793f1d74..6eac16e16 100644 --- a/pkg/tcpip/stack/stack.go +++ b/pkg/tcpip/stack/stack.go @@ -890,6 +890,15 @@ func (s *Stack) CreateNICWithOptions(id tcpip.NICID, ep LinkEndpoint, opts NICOp return tcpip.ErrDuplicateNICID } + // Make sure name is unique, unless unnamed. + if opts.Name != "" { + for _, n := range s.nics { + if n.Name() == opts.Name { + return tcpip.ErrDuplicateNICID + } + } + } + n := newNIC(s, id, opts.Name, ep, opts.Context) s.nics[id] = n |