Date: Mon, 20 Nov 2023 22:16:28 +0100 From: Franco Fichtner <franco@opnsense.org> To: Kristof Provost <kp@FreeBSD.org> Cc: Mike Karels <mike@karels.net>, =?utf-8?Q?Mina_Gali=C4=87?= <freebsd@igalic.co>, Zhenlei Huang <zlei@FreeBSD.org>, Kyle Evans <kevans@FreeBSD.org>, freebsd-net@freebsd.org Subject: Re: How to tell if a network interface was renamed (and from what) Message-ID: <B514CB40-036E-442F-98E9-EFCF74EC8BCE@opnsense.org> In-Reply-To: <F2536F44-5C61-4AE3-BEDA-705DD660A8F7@FreeBSD.org> References: <pdHC0ObBkAbx2HfFIhWYaB5-dmQDEUzNTWvVVJAuJV7FWdWWeSwybVFD-uyBUxPlqDRpAW7D1aAZsbrTxEj9kqsq7ESgO41srPmS-PcXGqw=@igalic.co> <E5F5F61E-3827-404A-A46F-BBCF45A29A82@FreeBSD.org> <9eef5488-e8da-4edd-bc00-baeb5aaf4a23@FreeBSD.org> <ptnVEMJ_x48tdYePN4iYRiEW2vWqwulbEOUJ4dQ1cKGkxNXZPPfdEVHdJKNHFfs2onxNipVZKPwDZZKlDv1peS1Xttim1VitMFsdUiTkAKE=@igalic.co> <032BADD4-0A49-42E2-BAAB-40D2F76C64B9@FreeBSD.org> <rvRLOlpJc9xIf67ZwmZ4Si6TN2VtmIuyuguoQgEk5NTOeqsqkAwB_9KvlMbW6y-npSjCC2lmLVXbD4oIqyKJdDboThcWiehF_hU0L9D6GZc=@igalic.co> <31B38FCE-0B67-4122-A202-568150E971E1@karels.net> <F2536F44-5C61-4AE3-BEDA-705DD660A8F7@FreeBSD.org>
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> On 20. Nov 2023, at 21:56, Kristof Provost <kp@FreeBSD.org> wrote: >=20 > I=E2=80=99d look in the direction of just adding a field to struct = ifnet with the original interface name (likely easily done in = if_attach()), along with a new ioctl to retrieve that field. ifconfig_get_orig_name() already exists, but apart from wlandebug nothing is using it. The internally used IFDATA_DRIVERNAME also appears in ifinfo (not installed in base) and bsnmpd but that's it. if_dname is the target and it exists in ifnet struct along with a man page entry in inet(9). All that is really missing is a way to print it via ifconfig command. Cheers, Franco=
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