Add a FreeBSD MIB with a few branches we can hang things from.

share/Makefile

@@ -18,6 +18,7 @@ SUBDIR=	colldef \
 	numericdef \
 	${_sendmail} \
 	skel \
+	snmp \
 	syscons \
 	tabset \
 	termcap \

share/snmp/Makefile

@@ -0,0 +1,5 @@
+# $FreeBSD$
+
+SUBDIR= mibs
+
+.include <bsd.subdir.mk>

share/snmp/mibs/FREEBSD-MIB.txt

@@ -0,0 +1,57 @@
+-- *****************************************************************
+-- This file is in the public domain.
+--
+-- FreeBSD SMI { enterprises 2238 }
+--
+-- $FreeBSD$
+--
+-- *****************************************************************
+
+FREEBSD-MIB DEFINITIONS ::= BEGIN
+
+IMPORTS
+	MODULE-IDENTITY,
+	OBJECT-IDENTITY,
+	enterprises
+		FROM SNMPv2-SMI;
+
+FreeBSD MODULE-IDENTITY
+	LAST-UPDATED "200404110000Z"
+	ORGANIZATION "The FreeBSD Project."
+	CONTACT-INFO
+		"phk@FreeBSD.org is contact person for this file.
+		 core@FreeBSD.org is the final authority."
+	DESCRIPTION
+		"The Structure of Management Information for the
+		FreeBSD Project enterprise MIB subtree."
+	REVISION      "200404110000Z"
+	DESCRIPTION
+		"Initial version of this MIB module."
+	::= { enterprises 2238 }	-- assigned by IANA
+
+
+FreeBSDsrc OBJECT-IDENTITY
+	STATUS	current
+	DESCRIPTION
+		"Subtree for things which lives in the src tree."
+	::= { FreeBSD 1 }
+
+FreeBSDports OBJECT-IDENTITY
+	STATUS	current
+	DESCRIPTION
+		"Subtree for things which lives in the ports tree."
+	::= { FreeBSD 2 }
+
+FreeBSDpeople OBJECT-IDENTITY
+	STATUS	current
+	DESCRIPTION
+		"Subtree for FreeBSD people.
+		 Under this branch any FreeBSD committer may claim
+		 a subtree under his/her logname freefall.
+		 To avoid ambiguity with subset lognames, the length
+		 must be prepended.
+		 Example: phk's subtree is: {FreeBSD 3 3 112 104 107}
+		"
+	::= { FreeBSD 3 }
+
+END

share/snmp/mibs/Makefile

@@ -0,0 +1,7 @@
+# $FreeBSD$
+
+FILES=	FREEBSD-MIB.txt
+NOOBJ=	noobj
+FILESDIR=	${SHAREDIR}/snmp/mibs
+
+.include <bsd.prog.mk>