2 files changed, 41 insertions, 2 deletions

diff --git a/meta/lib/oeqa/utils/network.py b/meta/lib/oeqa/utils/network.py
index 59cbbc4f1b..59d01723a1 100644
--- a/meta/lib/oeqa/utils/network.py
+++ b/meta/lib/oeqa/utils/network.py
@@ -4,8 +4,8 @@
 
 import socket
 
-def get_free_port():
-    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+def get_free_port(udp = False):
+    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM if not udp else socket.SOCK_DGRAM)
     s.bind(('', 0))
     addr = s.getsockname()
     s.close()
diff --git a/meta/lib/oeqa/utils/nfs.py b/meta/lib/oeqa/utils/nfs.py
new file mode 100644
index 0000000000..a37686c914
--- /dev/null
+++ b/meta/lib/oeqa/utils/nfs.py
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: MIT
+import os
+import sys
+import tempfile
+import contextlib
+import socket
+from oeqa.utils.commands import bitbake, get_bb_var, Command
+from oeqa.utils.network import get_free_port
+
+@contextlib.contextmanager
+def unfs_server(directory, logger = None):
+    unfs_sysroot = get_bb_var("RECIPE_SYSROOT_NATIVE", "unfs3-native")
+    if not os.path.exists(os.path.join(unfs_sysroot, "usr", "bin", "unfsd")):
+        # build native tool
+        bitbake("unfs3-native -c addto_recipe_sysroot")
+
+    exports = None
+    cmd = None
+    try:
+        # create the exports file
+        with tempfile.NamedTemporaryFile(delete = False) as exports:
+            exports.write("{0} (rw,no_root_squash,no_all_squash,insecure)\n".format(directory).encode())
+
+        # find some ports for the server
+        nfsport, mountport = get_free_port(udp = True), get_free_port(udp = True)
+
+        nenv = dict(os.environ)
+        nenv['PATH'] = "{0}/sbin:{0}/usr/sbin:{0}/usr/bin:".format(unfs_sysroot) + nenv.get('PATH', '')
+        cmd = Command(["unfsd", "-d", "-p", "-N", "-e", exports.name, "-n", str(nfsport), "-m", str(mountport)],
+                bg = True, env = nenv, output_log = logger)
+        cmd.run()
+        yield nfsport, mountport
+    finally:
+        if cmd is not None:
+            cmd.stop()
+        if exports is not None:
+            # clean up exports file
+            os.unlink(exports.name)
+