5 openssl-engine - load and query engines
18 [B<-pre> I<command>] ...
19 [B<-post> I<command>] ...
24 This command is used to query the status and capabilities
25 of the specified I<engine>s.
26 Engines may be specified before and after all other command-line flags.
27 Only those specified are queried.
35 Display an option summary.
37 =item B<-v> B<-vv> B<-vvv> B<-vvvv>
39 Provides information about each specified engine. The first flag lists
40 all the possible run-time control commands; the second adds a
41 description of each command; the third adds the input flags, and the
42 final option adds the internal input flags.
46 Lists the capabilities of each engine.
50 Tests if each specified engine is available, and displays the answer.
54 Displays an error trace for any unavailable engine.
56 =item B<-pre> I<command>
58 =item B<-post> I<command>
60 Command-line configuration of engines.
61 The B<-pre> command is given to the engine before it is loaded and
62 the B<-post> command is given after the engine is loaded.
63 The I<command> is of the form I<cmd>:I<val> where I<cmd> is the command,
64 and I<val> is the value for the command.
65 See the example below.
67 These two options are cumulative, so they may be given more than once in the
74 To list all the commands available to a dynamic engine:
76 $ openssl engine -t -tt -vvvv dynamic
77 (dynamic) Dynamic engine loading support
79 SO_PATH: Specifies the path to the new ENGINE shared library
81 NO_VCHECK: Specifies to continue even if version checking fails (boolean)
82 (input flags): NUMERIC
83 ID: Specifies an ENGINE id name for loading
85 LIST_ADD: Whether to add a loaded ENGINE to the internal list (0=no,1=yes,2=mandatory)
86 (input flags): NUMERIC
87 DIR_LOAD: Specifies whether to load from 'DIR_ADD' directories (0=no,1=yes,2=mandatory)
88 (input flags): NUMERIC
89 DIR_ADD: Adds a directory from which ENGINEs can be loaded
91 LOAD: Load up the ENGINE specified by other settings
92 (input flags): NO_INPUT
94 To list the capabilities of the B<rsax> engine:
97 (rsax) RSAX engine support
99 (dynamic) Dynamic engine loading support
105 =item B<OPENSSL_ENGINES>
107 The path to the engines directory.
118 Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
120 Licensed under the Apache License 2.0 (the "License"). You may not use
121 this file except in compliance with the License. You can obtain a copy
122 in the file LICENSE in the source distribution or at
123 L<https://www.openssl.org/source/license.html>.