73 lines
2.1 KiB
Diff
73 lines
2.1 KiB
Diff
|
From 8d25120581dfdac4585b471d0d0ed36ecf75c817 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Phil Sutter <phil@nwl.cc>
|
||
|
|
Date: Wed, 11 Aug 2021 14:46:22 +0200
|
||
|
|
Subject: [PATCH] iptables-test: Make netns spawning more robust
|
||
|
|
|
||
|
|
On systems without unshare Python module, try to call unshare binary
|
||
|
|
with oneself as parameters.
|
||
|
|
|
||
|
|
Signed-off-by: Phil Sutter <phil@nwl.cc>
|
||
|
|
(cherry picked from commit 7ae14dc1a938fc158aaa1761b4fba57c5f1ab7a0)
|
||
|
|
---
|
||
|
|
iptables-test.py | 30 ++++++++++++++++++++++++++++++
|
||
|
|
1 file changed, 30 insertions(+)
|
||
|
|
|
||
|
|
diff --git a/iptables-test.py b/iptables-test.py
|
||
|
|
index 6b6eb611a7290..ffe5b1f7da972 100755
|
||
|
|
--- a/iptables-test.py
|
||
|
|
+++ b/iptables-test.py
|
||
|
|
@@ -304,6 +304,31 @@ log_file = None
|
||
|
|
|
||
|
|
print('\n'.join(missing))
|
||
|
|
|
||
|
|
+def spawn_netns():
|
||
|
|
+ # prefer unshare module
|
||
|
|
+ try:
|
||
|
|
+ import unshare
|
||
|
|
+ unshare.unshare(unshare.CLONE_NEWNET)
|
||
|
|
+ return True
|
||
|
|
+ except:
|
||
|
|
+ pass
|
||
|
|
+
|
||
|
|
+ # sledgehammer style:
|
||
|
|
+ # - call ourselves prefixed by 'unshare -n' if found
|
||
|
|
+ # - pass extra --no-netns parameter to avoid another recursion
|
||
|
|
+ try:
|
||
|
|
+ import shutil
|
||
|
|
+
|
||
|
|
+ unshare = shutil.which("unshare")
|
||
|
|
+ if unshare is None:
|
||
|
|
+ return False
|
||
|
|
+
|
||
|
|
+ sys.argv.append("--no-netns")
|
||
|
|
+ os.execv(unshare, [unshare, "-n", sys.executable] + sys.argv)
|
||
|
|
+ except:
|
||
|
|
+ pass
|
||
|
|
+
|
||
|
|
+ return False
|
||
|
|
|
||
|
|
#
|
||
|
|
# main
|
||
|
|
@@ -323,6 +348,8 @@ log_file = None
|
||
|
|
help='Test iptables-over-nftables')
|
||
|
|
parser.add_argument('-N', '--netns', action='store_true',
|
||
|
|
help='Test netnamespace path')
|
||
|
|
+ parser.add_argument('--no-netns', action='store_true',
|
||
|
|
+ help='Do not run testsuite in own network namespace')
|
||
|
|
args = parser.parse_args()
|
||
|
|
|
||
|
|
#
|
||
|
|
@@ -341,6 +368,9 @@ log_file = None
|
||
|
|
print("You need to be root to run this, sorry")
|
||
|
|
return
|
||
|
|
|
||
|
|
+ if not args.netns and not args.no_netns and not spawn_netns():
|
||
|
|
+ print("Cannot run in own namespace, connectivity might break")
|
||
|
|
+
|
||
|
|
if not args.host:
|
||
|
|
os.putenv("XTABLES_LIBDIR", os.path.abspath(EXTENSIONS_PATH))
|
||
|
|
os.putenv("PATH", "%s/iptables:%s" % (os.path.abspath(os.path.curdir),
|
||
|
|
--
|
||
|
|
2.40.0
|
||
|
|
|