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.
33 =item B<-v> B<-vv> B<-vvv> B<-vvvv>
35 Provides information about each specified engine. The first flag lists
36 all the possible run-time control commands; the second adds a
37 description of each command; the third adds the input flags, and the
38 final option adds the internal input flags.
42 Lists the capabilities of each engine.
46 Tests if each specified engine is available, and displays the answer.
50 Displays an error trace for any unavailable engine.
52 =item B<-pre> I<command>
54 =item B<-post> I<command>
56 Command-line configuration of engines.
57 The B<-pre> command is given to the engine before it is loaded and
58 the B<-post> command is given after the engine is loaded.
59 The I<command> is of the form I<cmd>:I<val> where I<cmd> is the command,
60 and I<val> is the value for the command.
61 See the example below.
63 These two options are cumulative, so they may be given more than once in the
70 To list all the commands available to a dynamic engine:
72 $ openssl engine -t -tt -vvvv dynamic
73 (dynamic) Dynamic engine loading support
75 SO_PATH: Specifies the path to the new ENGINE shared library
77 NO_VCHECK: Specifies to continue even if version checking fails (boolean)
78 (input flags): NUMERIC
79 ID: Specifies an ENGINE id name for loading
81 LIST_ADD: Whether to add a loaded ENGINE to the internal list (0=no,1=yes,2=mandatory)
82 (input flags): NUMERIC
83 DIR_LOAD: Specifies whether to load from 'DIR_ADD' directories (0=no,1=yes,2=mandatory)
84 (input flags): NUMERIC
85 DIR_ADD: Adds a directory from which ENGINEs can be loaded
87 LOAD: Load up the ENGINE specified by other settings
88 (input flags): NO_INPUT
90 To list the capabilities of the I<rsax> engine:
93 (rsax) RSAX engine support
95 (dynamic) Dynamic engine loading support
101 =item B<OPENSSL_ENGINES>
103 The path to the engines directory.
114 Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
116 Licensed under the Apache License 2.0 (the "License"). You may not use
117 this file except in compliance with the License. You can obtain a copy
118 in the file LICENSE in the source distribution or at
119 L<https://www.openssl.org/source/license.html>.