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+#!/usr/bin/env escript
+%% -*- erlang -*-
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2008-2011. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%% SNMP MIB compiler frontend
+%%
+
+-mode(compile).
+
+-include_lib("kernel/include/file.hrl").
+-include_lib("snmp/include/snmp_types.hrl").
+
+
+-record(state,
+ {
+ version = "%VSN%",
+ mfv,
+ file, % .mib or .bin depending on which are compiled
+ outdir = "./",
+ db = volatile,
+ include_dirs = ["./"],
+ include_lib_dirs = [],
+ deprecated = false,
+ group_check = true,
+ description = false,
+ reference = false,
+ imports = false,
+ module_identity = false,
+ module_compliance = false,
+ agent_capabilities = false,
+ module,
+ no_defaults = false,
+ relaxed_row_name_assigne_check = false,
+ %% The default verbosity (silence) will be filled in
+ %% during argument processing.
+ verbosity,
+ warnings = false
+ }).
+
+
+%% ------------------------------------------------------------------------
+%% Valid arguments:
+%% --o Dir [defaults to "./"]
+%% --i Dir [defaults to "./"]
+%% --il Dir
+%% --sgc
+%% --db DB [defaults to volatile]
+%% --dep
+%% --desc
+%% --ref
+%% --imp
+%% --mi
+%% --mc
+%% --ac
+%% --mod Mod
+%% --nd
+%% --rrnac
+%% --version
+%% --verbosity V
+%% --warnings
+main(Args) when is_list(Args) ->
+ case (catch process_args(Args)) of
+ ok ->
+ usage();
+ {ok, State} when is_record(State, state) ->
+ compile(State);
+ {ok, Str} when is_list(Str) ->
+ io:format("~s~n~n", [Str]),
+ halt(1);
+ {error, ReasonStr} ->
+ usage(ReasonStr)
+ end;
+main(_) ->
+ usage().
+
+compile(State) ->
+ %% io:format("snmpc: ~p~n", [State]),
+ case mk_file(State) of
+ {mib, File} ->
+ Options = mk_mib_options(State),
+ case mib2bin(File, Options) of
+ {ok, _BinFileName} ->
+ ok;
+ {error, Reason} ->
+ io:format("ERROR: Failed compiling mib: "
+ "~n ~p~n", [Reason]),
+ halt(1)
+ end;
+ {bin, File} ->
+ Options = mk_hrl_options(State),
+ case bin2hrl(File, Options) of
+ ok ->
+ ok;
+ {error, Reason} ->
+ io:format("ERROR: Failed generating hrl from mib: "
+ "~n ~p~n", [Reason]),
+ halt(1)
+ end
+ end.
+
+mib2bin(MibFileName, Options) ->
+ snmpc:compile(MibFileName, Options).
+
+bin2hrl(BinFileName, {OutDir, Verbosity}) ->
+ MibName = filename:basename(BinFileName),
+ BinFile = BinFileName ++ ".bin",
+ HrlFile = filename:join(OutDir, MibName) ++ ".hrl",
+ put(verbosity, Verbosity),
+ snmpc_mib_to_hrl:convert(BinFile, HrlFile, MibName).
+
+
+mk_file(#state{file = MIB}) ->
+ DirName = filename:dirname(MIB),
+ case filename:extension(MIB) of
+ ".mib" ->
+ BaseName = filename:basename(MIB, ".mib"),
+ {mib, filename:join(DirName, BaseName)};
+ ".bin" ->
+ BaseName = filename:basename(MIB, ".bin"),
+ {bin, filename:join(DirName, BaseName)};
+ BadExt ->
+ e(lists:flatten(io_lib:format("Unsupported file type: ~s", [BadExt])))
+ end.
+
+mk_mib_options(#state{outdir = OutDir,
+ db = DB,
+ include_dirs = IDs,
+ include_lib_dirs = ILDs,
+ deprecated = Dep,
+ group_check = GC,
+ description = Desc,
+ reference = Ref,
+ imports = Imp,
+ module_identity = MI,
+ module_compliance = MC,
+ agent_capabilities = AC,
+ module = Mod,
+ no_defaults = ND,
+ relaxed_row_name_assigne_check = RRNAC,
+ %% The default verbosity (silence) will be filled in
+ %% during argument processing.
+ verbosity = V,
+ warnings = W}) ->
+ [{outdir, OutDir},
+ {db, DB},
+ {i, IDs},
+ {il, ILDs},
+ {group_check, GC},
+ {verbosity, V},
+ {warnings, W},
+ {deprecated, Dep}] ++
+ if
+ (Mod =/= undefined) ->
+ [{module, Mod}];
+ true ->
+ []
+ end ++
+ maybe_option(ND, no_defs) ++
+ maybe_option(RRNAC, relaxed_row_name_assign_check) ++
+ maybe_option(Desc, description) ++
+ maybe_option(Ref, reference) ++
+ maybe_option(Imp, imports) ++
+ maybe_option(MI, module_identity) ++
+ maybe_option(MC, module_compliance) ++
+ maybe_option(AC, agent_capabilities).
+
+maybe_option(true, Opt) -> [Opt];
+maybe_option(_, _) -> [].
+
+
+mk_hrl_options(#state{outdir = OutDir,
+ verbosity = Verbosity}) ->
+ {OutDir, Verbosity}.
+
+
+process_args([]) ->
+ e("No input file");
+process_args(Args) ->
+ #mib{mib_format_version = MFV} = #mib{},
+ State = #state{},
+ process_args(Args, State#state{mfv = MFV}).
+
+process_args([], #state{verbosity = Verbosity0, file = MIB} = State) ->
+ if
+ (MIB =:= undefined) ->
+ e("No input file");
+ true ->
+ Verbosity =
+ case Verbosity0 of
+ undefined ->
+ silence;
+ _ ->
+ Verbosity0
+ end,
+ IPath = lists:reverse(State#state.include_dirs),
+ IlPath = lists:reverse(State#state.include_lib_dirs),
+ {ok, State#state{verbosity = Verbosity,
+ include_dirs = IPath,
+ include_lib_dirs = IlPath}}
+ end;
+process_args(["--help"|_Args], _State) ->
+ ok;
+process_args(["--version"|_Args], #state{version = Version, mfv = MFV} = _State) ->
+ {ok, lists:flatten(io_lib:format("snmpc ~s (~s)", [Version, MFV]))};
+process_args(["--verbosity", Verbosity0|Args], #state{verbosity = V} = State)
+ when (V =:= undefined) ->
+ Verbosity = list_to_atom(Verbosity0),
+ case lists:member(Verbosity, [trace,debug,log,info,silence]) of
+ true ->
+ process_args(Args, State#state{verbosity = Verbosity});
+ false ->
+ e(lists:flatten(io_lib:format("Unknown verbosity: ~s", [Verbosity0])))
+ end;
+process_args(["--verbosity"|_Args], #state{verbosity = V})
+ when (V =/= undefined) ->
+ e(lists:flatten(io_lib:format("Verbosity already set to ~w", [V])));
+process_args(["--warnings"|Args], State) ->
+ process_args(Args, State#state{warnings = true});
+process_args(["--o", Dir|Args], State) ->
+ case (catch file:read_file_info(Dir)) of
+ {ok, #file_info{type = directory}} ->
+ process_args(Args, State#state{outdir = Dir});
+ {ok, #file_info{type = BadType}} ->
+ e(lists:flatten(io_lib:format("Not a directory: ~p (~w)", [Dir, BadType])));
+ _ ->
+ e(lists:flatten(io_lib:format("Bad directory: ~p", [Dir])))
+ end;
+process_args(["--i", Dir|Args], State) ->
+ case (catch file:read_file_info(Dir)) of
+ {ok, #file_info{type = directory}} ->
+ IPath = [Dir | State#state.include_dirs],
+ process_args(Args, State#state{include_dirs = IPath});
+ {ok, #file_info{type = BadType}} ->
+ e(lists:flatten(io_lib:format("Not a directory: ~p (~w)", [Dir, BadType])));
+ _ ->
+ e(lists:flatten(io_lib:format("Bad directory: ~p", [Dir])))
+ end;
+process_args(["--il", Dir|Args], State) ->
+ case (catch file:read_file_info(Dir)) of
+ {ok, #file_info{type = directory}} ->
+ IlPath = [Dir | State#state.include_lib_dirs],
+ process_args(Args, State#state{include_lib_dirs = IlPath});
+ {ok, #file_info{type = BadType}} ->
+ e(lists:flatten(io_lib:format("Not a directory: ~p (~w)", [Dir, BadType])));
+ _ ->
+ e(lists:flatten(io_lib:format("Bad directory: ~p", [Dir])))
+ end;
+process_args(["--db", DB0|Args], State) ->
+ DB = list_to_atom(DB0),
+ case lists:member(DB, [volatile,persistent,mnesia]) of
+ true ->
+ process_args(Args, State#state{db = DB});
+ false ->
+ e(lists:flatten(io_lib:format("Invalid db: ~s", [DB0])))
+ end;
+process_args(["--dep"|Args], State) ->
+ process_args(Args, State#state{deprecated = true});
+process_args(["--sgc"|Args], State) ->
+ process_args(Args, State#state{group_check = false});
+process_args(["--desc"|Args], State) ->
+ process_args(Args, State#state{description = true});
+process_args(["--ref"|Args], State) ->
+ process_args(Args, State#state{reference = true});
+process_args(["--imp"|Args], State) ->
+ process_args(Args, State#state{imports = true});
+process_args(["--mi"|Args], State) ->
+ process_args(Args, State#state{module_identity = true});
+process_args(["--mod", Module0|Args], #state{module = M} = State)
+ when (M =:= undefined) ->
+ Module = list_to_atom(Module0),
+ process_args(Args, State#state{module = Module});
+process_args(["--mod"|_Args], #state{module = M})
+ when (M =/= undefined) ->
+ e(lists:flatten(io_lib:format("Module already set to ~w", [M])));
+process_args(["--nd"|Args], State) ->
+ process_args(Args, State#state{no_defaults = true});
+process_args(["--rrnac"|Args], State) ->
+ process_args(Args, State#state{relaxed_row_name_assigne_check = true});
+process_args([MIB], State) ->
+ Ext = filename:extension(MIB),
+ if
+ ((Ext =:= ".mib") orelse (Ext =:= ".bin")) ->
+ case (catch file:read_file_info(MIB)) of
+ {ok, #file_info{type = regular}} ->
+ process_args([], State#state{file = MIB});
+ {ok, #file_info{type = BadType}} ->
+ e(lists:flatten(io_lib:format("~s not a file: ~w", [MIB, BadType])));
+ {error, enoent} ->
+ e(lists:flatten(io_lib:format("No such file: ~s", [MIB])));
+ _ ->
+ e(lists:flatten(io_lib:format("Bad file: ~s", [MIB])))
+ end;
+ true ->
+ e(lists:flatten(io_lib:format("Unknown option: ~s", [MIB])))
+ end;
+process_args([Arg|Args], _State) when Args =/= [] ->
+ e(lists:flatten(io_lib:format("Unknown option: ~s", [Arg]))).
+
+usage(ReasonStr) ->
+ io:format("ERROR: ~s~n", [ReasonStr]),
+ usage().
+
+usage() ->
+ io:format("Usage: snmpc [options] MIB.mib|MIB.bin"
+ "~nCompile a MIB (.mib -> .bin) or generate an erlang header "
+ "~nfile from a compiled MIB file (.bin -> .hrl)"
+ "~nOptions:"
+ "~n --help - Prints this info."
+ "~n --version - Prints compiler version."
+ "~n --verbosity <verbosity> - Print debug info."
+ "~n verbosity = trace | debug | log | info | silence"
+ "~n Defaults to silence."
+ "~n --warnings - Print warning messages."
+ "~n --o <output dir> - The output dir."
+ "~n Defaults to current working dir."
+ "~n --i <include dir> - Add this dir to the list of dirs that will be"
+ "~n searched for imported (compiled) MIB files."
+ "~n The current workin dir will always be included. "
+ "~n --il <include_lib dir> - Add this dir to the list of dirs that will be"
+ "~n searched for imported (compiled) MIB files."
+ "~n It assumes that the first element in the dir name"
+ "~n correspond to an OTP application. For example snmp/mibs/"
+ "~n The current workin dir and the <snmp-home>/priv/mibs "
+ "~n are always listed last the includ path. "
+ "~n --db <DB> - Database to used for the default instrumentation."
+ "~n Defaults to volatile."
+ "~n --sgc - This option (skip group check), if present, disables "
+ "~n the \"group check\" of the mib compiler. "
+ "~n That is, should the OBJECT-GROUP and the NOTIFICATION-GROUP "
+ "~n macro(s) be checked for correctness or not. "
+ "~n By default the check is done. "
+ "~n --dep - Keep deprecated definition(s)."
+ "~n If not specified the compiler will ignore"
+ "~n deprecated definitions."
+ "~n --desc - The DESCRIPTION field will be included."
+ "~n --ref - The REFERENCE field will be included."
+ "~n --imp - The IMPORTS field will be included."
+ "~n --mi - The MODULE-IDENTITY field will be included."
+ "~n --mc - The MODULE-COMPLIANCE field will be included."
+ "~n --ac - The AGENT-CAPABILITIES field will be included."
+ "~n --mod <module> - The module which implements all the instrumentation"
+ "~n functions. "
+ "~n The name of all instrumentation functions must"
+ "~n be the same as the corresponding managed object"
+ "~n it implements."
+ "~n --nd - The default instrumentation functions will *not* be used"
+ "~n if a managed object have no instrumentation function. "
+ "~n Instead this will be reported as an error, and the "
+ "~n compilation aborts. "
+ "~n --rrnac - This option, if present, specifies that the row name "
+ "~n assign check shall not be done strictly according to"
+ "~n the SMI (which allows only the value 1). "
+ "~n With this option, all values greater than zero is allowed"
+ "~n (>= 1). This means that the error will be converted to "
+ "~n a warning. "
+ "~n By default it is not included, but if this option is "
+ "~n present it will be. "
+ "~n "
+ "~n", []),
+ halt(1).
+
+
+e(Reason) ->
+ throw({error, Reason}).
+