Allow to change interfaces name on boot time.

Now, one should be able to put something like this into /etc/rc.conf:

	ifconfig_fxp0_name="net0"
	ifconfig_net0="inet 10.0.0.1/16"

Reviewed by:	green

etc/defaults/rc.conf

@@ -129,6 +129,7 @@ cloned_interfaces=""		# List of cloned network interfaces to create.
 ifconfig_lo0="inet 127.0.0.1"	# default loopback device configuration.
 #ifconfig_lo0_alias0="inet 127.0.0.254 netmask 0xffffffff" # Sample alias entry.
 #ifconfig_ed0_ipx="ipx 0x00010010"	# Sample IPX address family entry.
+#ifconfig_fxp0_name="net0"	# Change interface name from fxp0 to net0.
 #
 # If you have any sppp(4) interfaces above, you might also want to set
 # the following parameters.  Refer to spppcontrol(8) for their meaning.

etc/network.subr

@@ -250,6 +250,23 @@ ipx_down()
 	return $_ret
 }
 
+# ifnet_rename
+#	Rename all requested interfaces.
+#
+ifnet_rename()
+{
+
+	_ifn_list="`list_net_interfaces all`"
+	[ -z "$_ifn_list" ] && return 0
+	for _if in ${_ifn_list} ; do
+		eval _ifname=\$ifconfig_${_if}_name
+		if [ ! -z "$_ifname" ]; then
+			ifconfig $_if name $_ifname
+		fi
+	done
+	return 0
+}
+
 #
 # list_net_interfaces type
 #	List all network interfaces. The type of interface returned
@@ -257,6 +274,7 @@ ipx_down()
 #	argument can be any of the following:
 #		nodhcp - all interfaces, excluding DHCP configured interfaces
 #		dhcp   - list only DHCP configured interfaces
+#		all    - all interfaces
 #	If no argument is specified all network interfaces are output.
 #	Note that the list will include cloned interfaces if applicable.
 #	Cloned interfaces must already exist to have a chance to appear
@@ -325,6 +343,9 @@ list_net_interfaces()
 	dhcp)
 		echo $_dhcplist
 		;;
+	all)
+		echo $_nodhcplist $_dhcplist
+		;;
 	esac
 	return 0
 }

etc/rc.d/netif

@@ -56,6 +56,9 @@ network_start()
 
 		# Create IPv6<-->IPv4 tunnels
 		gif_up
+
+		# Rename interfaces.
+		ifnet_rename
 	fi
 
 	# Configure the interface(s).

share/man/man5/rc.conf.5

@@ -928,6 +928,12 @@ it is possible to use something like:
 .Bd -literal
 ifconfig_ed0="DHCP"
 .Ed
+.Pp
+It is also possible to rename interface by doing:
+.Bd -literal
+ifconfig_ed0_name="net0"
+ifconfig_net0="inet 10.0.0.1 netmask 0xffff0000"
+.Ed
 .It Va ipv6_network_interfaces
 .Pq Vt str
 This is the IPv6 equivalent of