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File ntp.aug of Package augeas

(* NTP module for Augeas                      *)
(* Author: Raphael Pinson <raphink@gmail.com> *)
(*                                            *)
(* Status: basic settings supported           *)

module Ntp =
  autoload xfm

(* Define useful shortcuts *)

let eol = del /[ \t]*/ "" . [ label "#comment" . store /#.*/]?
            . Util.del_str "\n"
    let sep_spc = Util.del_ws_spc
    let word = /[^,# \n\t]+/
    let num  = /[0-9]+/

(* define comments and empty lines *)
    let comment = [ label "#comment" . del /#[ \t]*/ "#" .
                    store /([^ \t\n][^\n]*)?/ . del "\n" "\n" ]
    let empty   = [ del /[ \t]*\n/ "\n" ]

let kv (k:regexp) (v:regexp) =
      [ key k . sep_spc. store v . eol ]

(* Define generic record *)
    let record (kw:regexp) (value:lens) =
      [ key kw . sep_spc . store word . value . eol ]

let broadcastclient =
      [ key "broadcastclient" . [ sep_spc . key "novolley" ]? . eol ]

(* Define a fudge record *)
    let fudge_opt_re = "refid" | "stratum"
    let fudge_opt  = [ sep_spc . key fudge_opt_re . sep_spc . store word ]
    let fudge_record = record "fudge" fudge_opt?

let simple_setting (k:regexp) = kv k word

(* Misc commands, see miscopt.html in ntp docs *)

(* Define restrict *)
    let restrict_record   =
      let ip6_restrict = [ label "ipv6" . sep_spc . Util.del_str "-6" ] in
      let ip4_restrict = [ label "ipv4" . sep_spc . Util.del_str "-4" ] in
      let action    = [ label "action" . sep_spc . store /[^,# \n\t-][^,# \n\t]*/ ] in
      [ key "restrict" . (ip6_restrict | ip4_restrict)? . sep_spc . store /[^,# \n\t-][^,# \n\t]*/ . action* . eol ]

(* Define statistics *)
    let statistics_flag (kw:string) = [ sep_spc . key kw ]

let statistics_opts = statistics_flag "loopstats"
                        | statistics_flag "peerstats"
			| statistics_flag "clockstats"
			| statistics_flag "rawstats"

let statistics_record = [ key "statistics" . statistics_opts* . eol ]

(* Define filegen *)
    let filegen = del /filegen[ \t]+/ "filegen " . store word
    let filegen_opt (kw:string) = [ sep_spc . key kw . sep_spc . store word ]
    (* let filegen_flag (kw:string) = [ label kw . sep_spc . store word ] *)
    let filegen_select (kw:string) (select:regexp) = [ label kw . sep_spc . store select ]

let filegen_opts = filegen_opt "file"
                     | filegen_opt "type"
		     | filegen_select "enable" /(en|dis)able/
		     | filegen_select "link" /(no)?link/

let filegen_record = [ label "filegen" . filegen . filegen_opts* . eol ]

(* tos [beacon beacon | ceiling ceiling | cohort {0 | 1} |
            floor floor | maxclock maxclock | maxdist maxdist |
            minclock minclock | mindist mindist | minsane minsane |
            orphan stratum | orphanwait delay] *)

let interface =
         let action = [ label "action" . store /listen|ignore|drop/ ]
      in let addresses = [ label "addresses" . store Rx.word ]
      in [ key "interface" . sep_spc . action . sep_spc . addresses . eol ]

(* Define lens *)

let filter = (incl "/etc/ntp.conf")

let xfm = transform lns filter

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File ntp.aug of Package augeas

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