selftest: net: Improve IPV6_TCLASS/IPV6_HOPLIMIT tests apparmor compatibility
authorAndrei Gherzan <andrei.gherzan@canonical.com>
Thu, 26 Jan 2023 16:55:48 +0000 (16:55 +0000)
committerDavid S. Miller <davem@davemloft.net>
Sat, 28 Jan 2023 13:55:12 +0000 (13:55 +0000)
commita6efc42a86c0c87cfe2f1c3d1f09a4c9b13ba890
treebdb58aeda300b2dd9df3e14647cf5232c390f43c
parent906ad3c9bf66e3c6dd4ebe14a7af1b339a2afacf
selftest: net: Improve IPV6_TCLASS/IPV6_HOPLIMIT tests apparmor compatibility

"tcpdump" is used to capture traffic in these tests while using a random,
temporary and not suffixed file for it. This can interfere with apparmor
configuration where the tool is only allowed to read from files with
'known' extensions.

The MINE type application/vnd.tcpdump.pcap was registered with IANA for
pcap files and .pcap is the extension that is both most common but also
aligned with standard apparmor configurations. See TCPDUMP(8) for more
details.

This improves compatibility with standard apparmor configurations by
using ".pcap" as the file extension for the tests' temporary files.

Signed-off-by: Andrei Gherzan <andrei.gherzan@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
tools/testing/selftests/net/cmsg_ipv6.sh