/usr/share/freeradius/dictionary.chillispot is in freeradius-common 2.1.12+dfsg-1.2ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | # -*- text -*-
##############################################################################
#
#	ChilliSpot (and CoovaChilli) captive portal
#	http://www.chillispot.org
#	http://coova.org/wiki/index.php/CoovaChilli
#
#	$Id$
#
##############################################################################
VENDOR		ChilliSpot			14559
BEGIN-VENDOR	ChilliSpot
ATTRIBUTE	ChilliSpot-Max-Input-Octets		1	integer
ATTRIBUTE	ChilliSpot-Max-Output-Octets		2	integer
ATTRIBUTE	ChilliSpot-Max-Total-Octets		3	integer
ATTRIBUTE       ChilliSpot-Bandwidth-Max-Up        	4       integer
ATTRIBUTE       ChilliSpot-Bandwidth-Max-Down      	5       integer
ATTRIBUTE       ChilliSpot-Config                  	6       string
ATTRIBUTE       ChilliSpot-Lang                    	7       string
ATTRIBUTE       ChilliSpot-Version                 	8       string
ATTRIBUTE       ChilliSpot-OriginalURL             	9       string
# Configuration management parameters (ChilliSpot Only)
ATTRIBUTE	ChilliSpot-UAM-Allowed			100	string
ATTRIBUTE	ChilliSpot-MAC-Allowed			101	string
ATTRIBUTE	ChilliSpot-Interval			102	integer
# Inline with RFC 2882 use of VSE-Authorize-Only for remote config
# Note that 14559 = 0x38df is used as prefix for the VSE.
# This is recognized as the best (but bad) way of doing VSEs.
# (ChilliSpot Only - CoovaChilli uses Service-Type = Administrative-User)
VALUE	Service-Type			ChilliSpot-Authorize-Only 0x38df0001
END-VENDOR	ChilliSpot
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