libpod: Build oci_conmon_common.go and oci_conmon_attach_common on FreeBSD

This also adds FreeBSD equivalents to the functions moved to
oci_conmon*_linux.go. For openUnixSocket, we create a temporary symlink
to shorten the path to something that fits into sockaddr_un.

[NO NEW TESTS NEEDED]

Signed-off-by: Doug Rabson <dfr@rabson.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/libpod/oci_conmon_freebsd.go b/libpod/oci_conmon_freebsd.go
new file mode 100644
index 000000000..6f7ac7fc6
--- /dev/null
+++ b/libpod/oci_conmon_freebsd.go
@@ -0,0 +1,24 @@
+package libpod
+
+import (
+	"errors"
+	"os"
+	"os/exec"
+)
+
+func (r *ConmonOCIRuntime) createRootlessContainer(ctr *Container, restoreOptions *ContainerCheckpointOptions) (int64, error) {
+	return -1, errors.New("unsupported (*ConmonOCIRuntime) createRootlessContainer")
+}
+
+// Run the closure with the container's socket label set
+func (r *ConmonOCIRuntime) withContainerSocketLabel(ctr *Container, closure func() error) error {
+	// No label support yet
+	return closure()
+}
+
+// moveConmonToCgroupAndSignal gets a container's cgroupParent and moves the conmon process to that cgroup
+// it then signals for conmon to start by sending nonce data down the start fd
+func (r *ConmonOCIRuntime) moveConmonToCgroupAndSignal(ctr *Container, cmd *exec.Cmd, startFd *os.File) error {
+	// No equivalent on FreeBSD
+	return nil
+}