netdev - [PATCH net-next v2 2/4] selftests: drv-net: Improve bpftrace utility error handling

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250625-netpoll_test-v2-2-47d27775222c@debian.org>
Date: Wed, 25 Jun 2025 04:39:47 -0700
From: Breno Leitao <leitao@...ian.org>
To: Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Shuah Khan <shuah@...nel.org>, Simon Horman <horms@...nel.org>
Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, 
 Willem de Bruijn <willemdebruijn.kernel@...il.com>, bpf@...r.kernel.org, 
 gustavold@...il.com, Breno Leitao <leitao@...ian.org>
Subject: [PATCH net-next v2 2/4] selftests: drv-net: Improve bpftrace
 utility error handling

Enhance the bpftrace function to raise an exception if the underlying
bpftrace command returns a non-zero exit code. This helps detect and
surface errors from bpftrace execution in test scripts, improving
robustness and debugging capabilities.

Signed-off-by: Breno Leitao <leitao@...ian.org>
---
 tools/testing/selftests/net/lib/py/utils.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/net/lib/py/utils.py b/tools/testing/selftests/net/lib/py/utils.py
index 760ccf6fccccc..c4e26567ee6fb 100644
--- a/tools/testing/selftests/net/lib/py/utils.py
+++ b/tools/testing/selftests/net/lib/py/utils.py
@@ -203,6 +203,9 @@ def bpftrace(expr, json=None, ns=None, host=None, timeout=None):
         expr += ' interval:s:' + str(timeout) + ' { exit(); }'
     cmd_arr += ['-e', expr]
     cmd_obj = cmd(cmd_arr, ns=ns, host=host, shell=False)
+    if cmd_obj.ret != 0:
+        raise Exception("Warning: bpftrace command returned a non-zero exit code.")
+
     if json:
         # bpftrace prints objects as lines
         ret = {}

-- 
2.47.1