5 openssl-engine - load and query engines
24 The B<engine> command is used to query the status and capabilities
25 of the specified B<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:val> where I<cmd> is the command,
60 and I<val> is the value for the command.
61 See the example below.
67 To list all the commands available to a dynamic engine:
69 $ openssl engine -t -tt -vvvv dynamic
70 (dynamic) Dynamic engine loading support
72 SO_PATH: Specifies the path to the new ENGINE shared library
74 NO_VCHECK: Specifies to continue even if version checking fails (boolean)
75 (input flags): NUMERIC
76 ID: Specifies an ENGINE id name for loading
78 LIST_ADD: Whether to add a loaded ENGINE to the internal list (0=no,1=yes,2=mandatory)
79 (input flags): NUMERIC
80 DIR_LOAD: Specifies whether to load from 'DIR_ADD' directories (0=no,1=yes,2=mandatory)
81 (input flags): NUMERIC
82 DIR_ADD: Adds a directory from which ENGINEs can be loaded
84 LOAD: Load up the ENGINE specified by other settings
85 (input flags): NO_INPUT
87 To list the capabilities of the I<rsax> engine:
90 (rsax) RSAX engine support
92 (dynamic) Dynamic engine loading support
98 =item B<OPENSSL_ENGINES>
100 The path to the engines directory.
111 Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
113 Licensed under the Apache License 2.0 (the "License"). You may not use
114 this file except in compliance with the License. You can obtain a copy
115 in the file LICENSE in the source distribution or at
116 L<https://www.openssl.org/source/license.html>.