[NEW PORT] sysutils/ethname: boot-time (re)naming of ethernet devices by MAC

An rc-script for pinning an ethernet network name to a MAC address.

--

This isn't typically needed on PCIe systems, but for systems with multiple
USB ethernet (ue) devices, which seem to like to come up in
non-deterministic order, it is very helpful; doubly so when the system in
question is a router / firewall where the network config and security
concerns vary wildly from one device to the next.

It could also be of use for traditional NICs (PCIe) when adding a new card
to a system, for example, and ensuring that the existing, previously
configured device sticks to the MAC address, and not having to worry about
which ends up /dev/xxxN vs /dev/xxxM.

The script inserts itself before netif, waits an adjustable delay for the
expected devices to appear, and then renames them as requested by the user.
All of the device configuration, pf, etc., can be written with the new
names. It does not attempt to automatically handle devices added after boot.

--

Usage is described in the script, but effectively:

$ cat /etc/rc.conf
ethname_enable="YES"
ethname_foo0_mac="aa:bb:cc:dd:ee:00"
ethname_bar_mac="aa:bb:cc:dd:ee:01"

# Optionally, otherwise it'll just enumerate all ethname_*_mac vars:
ethname_names="foo0 bar"

PR:		212480
Submitted by:	eborisch gmail com

sysutils/Makefile

@@ -312,6 +312,7 @@
     SUBDIR += etc_os-release
     SUBDIR += etcmerge
     SUBDIR += etcupdate
+    SUBDIR += ethname
     SUBDIR += evhz
     SUBDIR += evisum
     SUBDIR += evtviewer

sysutils/ethname/Makefile

@@ -0,0 +1,22 @@
+# $FreeBSD$
+
+PORTNAME=	ethname
+PORTVERSION=	2.0.1
+DISTVERSIONPREFIX=	v
+CATEGORIES=	sysutils
+
+MAINTAINER=	eborisch@gmail.com
+COMMENT=	MAC-based network name pinning
+
+LICENSE=	MIT
+
+USE_GITHUB=	yes
+GH_ACCOUNT=	eborisch
+
+NO_ARCH=	yes
+NO_BUILD=	yes
+
+PLIST_FILES=	etc/rc.d/ethname \
+		share/ethname/README.md
+
+.include <bsd.port.mk>

sysutils/ethname/distinfo

@@ -0,0 +1,3 @@
+TIMESTAMP = 1583781876
+SHA256 (eborisch-ethname-v2.0.1_GH0.tar.gz) = 2a074b530d042843ff5234405f039a5b65d60f33276aa811fcb4f04a01f75737
+SIZE (eborisch-ethname-v2.0.1_GH0.tar.gz) = 4488

sysutils/ethname/pkg-descr

@@ -0,0 +1,3 @@
+An rc-script for pinning an ethernet network name to a MAC address.
+
+WWW: https://github.com/eborisch/ethname