[LTP] [PATCH v2 1/2] tst_net.sh: Allow test to force netns

[LTP] [PATCH v2 1/2] tst_net.sh: Allow test to force netns

[Petr Vorel]

Add $TST_NET_FORCE_NETNS variable for tests which test network
namespaces therefore they should not use as rhost the real 2nd host
configured when using 2 hosts setup.

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
New in v2 to fix chicken and egg problem pointed out the agent.

 testcases/lib/tst_net.sh  | 7 +++++++
 testcases/lib/tst_test.sh | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/testcases/lib/tst_net.sh b/testcases/lib/tst_net.sh
index 4e7fc26fa0..7b7656dae0 100644
--- a/testcases/lib/tst_net.sh
+++ b/testcases/lib/tst_net.sh
@@ -1144,6 +1144,13 @@ tst_net_detect_ipv6
 
 [ -n "$TST_NET_SKIP_VARIABLE_INIT" ] && return 0
 
+
+# Force use of nested net namespace
+if [ "$TST_NET_FORCE_NETNS" = 1 ]; then
+	unset IPV4_LHOST IPV4_RHOST IPV6_LHOST IPV6_RHOST LHOST_HWADDRS \
+		LHOST_IFACES RHOST RHOST_HWADDRS RHOST_IFACES
+fi
+
 # Management Link
 [ -z "$RHOST" ] && TST_USE_NETNS="yes"
 export RHOST="$RHOST"
diff --git a/testcases/lib/tst_test.sh b/testcases/lib/tst_test.sh
index b3e7e29bbf..f83b096a27 100644
--- a/testcases/lib/tst_test.sh
+++ b/testcases/lib/tst_test.sh
@@ -699,7 +699,7 @@ tst_run()
 			CHECKPOINT_WAKE2|CHECKPOINT_WAKE_AND_WAIT);;
 			DEV_EXTRA_OPTS|DEV_FS_OPTS|FORMAT_DEVICE|MOUNT_DEVICE);;
 			SKIP_FILESYSTEMS|SKIP_IN_LOCKDOWN|SKIP_IN_SECUREBOOT);;
-			DEVICE_SIZE|USR_UID|USR_GID);;
+			DEVICE_SIZE|USR_UID|USR_GID|NET_FORCE_NETNS);;
 			*) tst_res TWARN "Reserved variable TST_$_tst_i used!";;
 			esac
 		done
-- 
2.56.0


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[LTP] [PATCH v2 2/2] nfsstat02.sh: Force use of nested net namespace

[Petr Vorel]

Use TST_NET_FORCE_NETNS=1 because test tests net namespace itself.

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
Changes in v2:
* Use TST_NET_FORCE_NETNS=1

 testcases/network/nfs/nfsstat01/nfsstat02.sh | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/testcases/network/nfs/nfsstat01/nfsstat02.sh b/testcases/network/nfs/nfsstat01/nfsstat02.sh
index 75a1a01b5b..06b4dff855 100755
--- a/testcases/network/nfs/nfsstat01/nfsstat02.sh
+++ b/testcases/network/nfs/nfsstat01/nfsstat02.sh
@@ -3,6 +3,7 @@
 # Copyright (c) 2024 SUSE LLC <mdoucha@suse.cz>
 
 TST_TESTFUNC="do_test"
+TST_NET_FORCE_NETNS=1
 
 # PURPOSE:  Check that /proc/net/rpc/nfs exists in nested network namespaces
 # d47151b79e32 ("nfs: expose /proc/net/sunrpc/nfs in net namespaces")
@@ -19,8 +20,5 @@ do_test()
 	fi
 }
 
-# Force use of nested net namespace
-unset RHOST
-
 . nfs_lib.sh
 tst_run
-- 
2.56.0


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Re: [LTP] [PATCH v2 2/2] nfsstat02.sh: Force use of nested net namespace

[Petr Vorel]

Hi all,

FYI merged.

Kind regards,
Petr

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Re: [LTP] tst_net.sh: Allow test to force netns

[linuxtestproject.agent]

Hi Petr,

On Fri Oct 30 16:40:00 2026 +0100, Petr Vorel <pvorel@suse.cz> wrote:
> tst_net.sh: Allow test to force netns

Verdict - Reviewed

---
Note:

The agent can sometimes produce false positives although often its
findings are genuine. If you find issues with the review, please
comment this email or ignore the suggestions.

Regards,
LTP AI Reviewer

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