Allow building on !linux

PiperOrigin-RevId: 209819644
Change-Id: I329d054bf8f4999e7db0dcd95b13f7793c65d4e2

8 files changed, 16 insertions, 0 deletions

diff --git a/pkg/tcpip/link/fdbased/endpoint.go b/pkg/tcpip/link/fdbased/endpoint.go
index 152d8f0b2..449acdfdd 100644
--- a/pkg/tcpip/link/fdbased/endpoint.go
+++ b/pkg/tcpip/link/fdbased/endpoint.go
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build linux
+
 // Package fdbased provides the implemention of data-link layer endpoints
 // backed by boundary-preserving file descriptors (e.g., TUN devices,
 // seqpacket/datagram sockets).
diff --git a/pkg/tcpip/link/fdbased/endpoint_test.go b/pkg/tcpip/link/fdbased/endpoint_test.go
index e05e3aebd..89e791543 100644
--- a/pkg/tcpip/link/fdbased/endpoint_test.go
+++ b/pkg/tcpip/link/fdbased/endpoint_test.go
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build linux
+
 package fdbased
 
 import (
diff --git a/pkg/tcpip/link/sharedmem/rx.go b/pkg/tcpip/link/sharedmem/rx.go
index 4c9aa3f64..b8e39eca1 100644
--- a/pkg/tcpip/link/sharedmem/rx.go
+++ b/pkg/tcpip/link/sharedmem/rx.go
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build linux
+
 package sharedmem
 
 import (
diff --git a/pkg/tcpip/link/sharedmem/sharedmem.go b/pkg/tcpip/link/sharedmem/sharedmem.go
index eabf35bd3..824cab093 100644
--- a/pkg/tcpip/link/sharedmem/sharedmem.go
+++ b/pkg/tcpip/link/sharedmem/sharedmem.go
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build linux
+
 // Package sharedmem provides the implemention of data-link layer endpoints
 // backed by shared memory.
 //
diff --git a/pkg/tcpip/link/sharedmem/sharedmem_test.go b/pkg/tcpip/link/sharedmem/sharedmem_test.go
index 7bd8db6a4..1e229279a 100644
--- a/pkg/tcpip/link/sharedmem/sharedmem_test.go
+++ b/pkg/tcpip/link/sharedmem/sharedmem_test.go
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build linux
+
 package sharedmem
 
 import (
diff --git a/pkg/tcpip/link/tun/tun_unsafe.go b/pkg/tcpip/link/tun/tun_unsafe.go
index d3d68b569..1dec41982 100644
--- a/pkg/tcpip/link/tun/tun_unsafe.go
+++ b/pkg/tcpip/link/tun/tun_unsafe.go
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build linux
+
 // Package tun contains methods to open TAP and TUN devices.
 package tun
 
diff --git a/pkg/tcpip/sample/tun_tcp_connect/main.go b/pkg/tcpip/sample/tun_tcp_connect/main.go
index 3030e84a7..d029193fb 100644
--- a/pkg/tcpip/sample/tun_tcp_connect/main.go
+++ b/pkg/tcpip/sample/tun_tcp_connect/main.go
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build linux
+
 // This sample creates a stack with TCP and IPv4 protocols on top of a TUN
 // device, and connects to a peer. Similar to "nc <address> <port>". While the
 // sample is running, attempts to connect to its IPv4 address will result in
diff --git a/pkg/tcpip/sample/tun_tcp_echo/main.go b/pkg/tcpip/sample/tun_tcp_echo/main.go
index 9cced35eb..a4b28a7a3 100644
--- a/pkg/tcpip/sample/tun_tcp_echo/main.go
+++ b/pkg/tcpip/sample/tun_tcp_echo/main.go
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build linux
+
 // This sample creates a stack with TCP and IPv4 protocols on top of a TUN
 // device, and listens on a port. Data received by the server in the accepted
 // connections is echoed back to the clients.