1 (* inetd.conf lens definition for Augeas
2 Auther: Matt Palmer <mpalmer@hezmatt.org>
4 Copyright (C) 2009 Matt Palmer, All Rights Reserved
6 This program is free software: you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License version 2.1 as
8 published by the Free Software Foundation.
10 This program is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
13 Public License for more details.
15 You should have received a copy of the GNU General Public License along
16 with this program. If not, see <http://www.gnu.org/licenses/>.
18 This lens parses /etc/inetd.conf. The current format is based on the
19 syntax documented in the inetd manpage shipped with Debian's openbsd-inetd
20 package version 0.20080125-2. Apologies if your inetd.conf doesn't follow
23 Each top-level entry will have a key being that of the service name (the
24 first column in the service definition, which is the name or number of the
25 port that the service should listen on). The attributes for the service all
26 sit under that. In regular Augeas style, the order of the attributes
27 matter, and attempts to set things in a different order will fail miserably.
28 The defined attribute names (and the order in which they must appear) are as
29 follows (with mandatory parameters indicated by [*]):
31 address -- a sequence of IP addresses or hostnames on which this service
34 socket[*] -- The type of the socket that will be created (either stream or
35 dgram, although the lens doesn't constrain the possibilities here)
37 protocol[*] -- The socket protocol. I believe that the usual possibilities
38 are "tcp", "udp", or "unix", but no restriction is made on what you
39 can actually put here.
41 sndbuf -- Specify a non-default size for the send buffer of the connection.
43 rcvbuf -- Specify a non-default size for the receive buffer of the connection.
45 wait[*] -- Whether to wait for new connections ("wait"), or just terminate
46 immediately ("nowait").
48 max -- The maximum number of times that a service can be invoked in one minute.
50 user[*] -- The user to run the service as.
52 group -- A group to set the running service to, rather than the primary
53 group of the previously specified user.
55 command[*] -- What program to run.
57 arguments -- A sequence of arguments to pass to the command.
59 In addition to this straightforward tree, inetd has the ability to set
60 "default" listen addresses; this is a little used feature which nonetheless
61 comes in handy sometimes. The key for entries of this type is "address"
62 , and the subtree should be a sequence of addresses. "*" can
63 always be used to return the default behaviour of listening on INADDR_ANY.
70 (***************************
72 ***************************)
74 (* Store whitespace *)
75 let wsp = del /[ \t]+/ " "
76 let sep = del /[ \t]+/ " "
77 let owsp(t:string) = del /[ \t]*/ t
79 (* It's the end of the line as we know it... doo, doo, dooooo *)
82 (* In the beginning, the earth was without form, and void *)
83 let empty = Util.empty
85 let comment = Util.comment
87 let del_str = Util.del_str
89 let address = [ seq "addrseq" . store /([a-zA-Z0-9.-]+|\[[A-Za-z0-9:?*%]+\]|\*)/ ]
90 let address_list = ( counter "addrseq" . (address . del_str ",")* . address )
92 let argument = [ seq "argseq" . store /[^ \t\n]+/ ]
93 let argument_list = ( counter "argseq" . [ label "arguments" . (argument . wsp)* . argument ] )
95 (***************************
97 ***************************)
99 let service (l:string) = ( label l . [label "address" . address_list . del_str ":" ]? . store /[^ \t\n\/:#]+/ )
101 let socket = [ label "socket" . store /[^ \t\n#]+/ ]
103 let protocol = ( [ label "protocol" . store /[^ \t\n,#]+/ ]
104 . [ del_str "," . key /sndbuf/ . del_str "=" . store /[^ \t\n,]+/ ]?
105 . [ del_str "," . key /rcvbuf/ . del_str "=" . store /[^ \t\n,]+/ ]?
108 let wait = ( [ label "wait" . store /(wait|nowait)/ ]
109 . [ del_str "." . label "max" . store /[0-9]+/ ]?
112 let usergroup = ( [ label "user" . store /[^ \t\n:.]+/ ]
113 . [ del /[:.]/ ":" . label "group" . store /[^ \t\n:.]+/ ]?
116 let command = ( [ label "command" . store /[^ \t\n]+/ ]
117 . (wsp . argument_list)?
120 (***************************
122 ***************************)
124 let service_line = [ service "service"
139 (***************************
141 ***************************)
143 let rpc_service = service "rpc_service" . Util.del_str "/"
144 . [ label "version" . store Rx.integer ]
146 let rpc_endpoint = [ label "endpoint-type" . store Rx.word ]
147 let rpc_protocol = Util.del_str "rpc/"
149 [label "protocol" . store /[^ \t\n,#]+/ ]
152 let rpc_line = [ rpc_service
167 (***************************
168 * DEFAULT LISTEN ADDRESSES
169 ***************************)
171 let default_listen_address = [ label "address"
177 (***********************
179 ***********************)
181 let lns = (comment|empty|service_line|rpc_line|default_listen_address)*
183 let filter = incl "/etc/inetd.conf"
185 let xfm = transform lns filter