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Bug 1987286

Summary:	[RFE] Use IFLA_PERM_ADDRESS/rtnetlink or fallback to ethtool call for permanent MAC/HW address
Product:	Red Hat Enterprise Linux 8	Reporter:	Wen Liang <wenliang>
Component:	NetworkManager	Assignee:	Wen Liang <wenliang>
Status:	CLOSED ERRATA	QA Contact:	David Jaša <djasa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	8.6	CC:	bgalvani, djasa, lrintel, rkhan, sukulkar, thaller, till, vbenes
Target Milestone:	beta	Keywords:	FutureFeature, Triaged
Target Release:	---	Flags:	pm-rhel: mirror+
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	NetworkManager-1.34.0-0.1.el8	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-05-10 14:54:08 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Wen Liang 2021-07-29 12:32:46 UTC

Description of problem:

Kernel now exposes the permanent MAC address via rtnetlink. Use and prefer it over ethtool ioctl:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f74877a5457d34d604dba6dbbb13c4c05bac8b93

Comment 2 Wen Liang 2021-07-29 12:36:03 UTC

Currently in `nmp_utils_ethtool_get_permanent_address()`, NM does a ethtool call to find the interface permanent mac address, instead of doing the additional ethtool call, we could change `_new_from_nl_link()` to parse/read the IFLA_PERM_ADDRESS attribute from netlink.

Comment 11 errata-xmlrpc 2022-05-10 14:54:08 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (NetworkManager bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2022:1985