| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | openssl-engine,
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| 6 | engine - load and query engines
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| 7 |
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| 8 | =head1 SYNOPSIS
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| 9 |
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| 10 | B<openssl engine>
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| 11 | [ I<engine...> ]
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| 12 | [B<-v>]
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| 13 | [B<-vv>]
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| 14 | [B<-vvv>]
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| 15 | [B<-vvv>]
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| 16 | [B<-vvv>]
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| 17 | [B<-c>]
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| 18 | [B<-t>]
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| 19 | [B<-tt>]
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| 20 | [B<-pre> I<command>]
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| 21 | [B<-post> I<command>]
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| 22 | [ I<engine...> ]
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| 23 |
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| 24 | =head1 DESCRIPTION
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| 25 |
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| 26 | The B<engine> command is used to query the status and capabilities
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| 27 | of the specified B<engine>'s.
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| 28 | Engines may be specified before and after all other command-line flags.
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| 29 | Only those specified are queried.
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| 30 |
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| 31 | =head1 OPTIONS
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| 32 |
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| 33 | =over 4
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| 34 |
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| 35 | =item B<-v> B<-vv> B<-vvv> B<-vvvv>
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| 36 |
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| 37 | Provides information about each specified engine. The first flag lists
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| 38 | all the possible run-time control commands; the second adds a
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| 39 | description of each command; the third adds the input flags, and the
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| 40 | final option adds the internal input flags.
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| 41 |
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| 42 | =item B<-c>
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| 43 |
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| 44 | Lists the capabilities of each engine.
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| 45 |
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| 46 | =item B<-t>
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| 47 |
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| 48 | Tests if each specified engine is available, and displays the answer.
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| 49 |
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| 50 | =item B<-tt>
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| 51 |
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| 52 | Displays an error trace for any unavailable engine.
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| 53 |
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| 54 | =item B<-pre> I<command>
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| 55 |
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| 56 | =item B<-post> I<command>
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| 57 |
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| 58 | Command-line configuration of engines.
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| 59 | The B<-pre> command is given to the engine before it is loaded and
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| 60 | the B<-post> command is given after the engine is loaded.
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| 61 | The I<command> is of the form I<cmd:val> where I<cmd> is the command,
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| 62 | and I<val> is the value for the command.
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| 63 | See the example below.
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| 64 |
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| 65 | =back
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| 66 |
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| 67 | =head1 EXAMPLES
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| 68 |
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| 69 | To list all the commands available to a dynamic engine:
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| 70 |
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| 71 | $ openssl engine -t -tt -vvvv dynamic
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| 72 | (dynamic) Dynamic engine loading support
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| 73 | [ unavailable ]
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| 74 | SO_PATH: Specifies the path to the new ENGINE shared library
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| 75 | (input flags): STRING
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| 76 | NO_VCHECK: Specifies to continue even if version checking fails (boolean)
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| 77 | (input flags): NUMERIC
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| 78 | ID: Specifies an ENGINE id name for loading
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| 79 | (input flags): STRING
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| 80 | LIST_ADD: Whether to add a loaded ENGINE to the internal list (0=no,1=yes,2=mandatory)
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| 81 | (input flags): NUMERIC
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| 82 | DIR_LOAD: Specifies whether to load from 'DIR_ADD' directories (0=no,1=yes,2=mandatory)
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| 83 | (input flags): NUMERIC
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| 84 | DIR_ADD: Adds a directory from which ENGINEs can be loaded
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| 85 | (input flags): STRING
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| 86 | LOAD: Load up the ENGINE specified by other settings
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| 87 | (input flags): NO_INPUT
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| 88 |
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| 89 | To list the capabilities of the I<rsax> engine:
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| 90 |
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| 91 | $ openssl engine -c
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| 92 | (rsax) RSAX engine support
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| 93 | [RSA]
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| 94 | (dynamic) Dynamic engine loading support
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| 95 |
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| 96 | =head1 ENVIRONMENT
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| 97 |
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| 98 | =over 4
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| 99 |
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| 100 | =item B<OPENSSL_ENGINES>
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| 101 |
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| 102 | The path to the engines directory.
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| 103 |
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| 104 | =back
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| 105 |
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| 106 | =head1 SEE ALSO
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| 107 |
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| 108 | L<config(5)>
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| 109 |
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| 110 | =head1 COPYRIGHT
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| 111 |
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| 112 | Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
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| 113 |
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| 114 | Licensed under the OpenSSL license (the "License"). You may not use
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| 115 | this file except in compliance with the License. You can obtain a copy
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| 116 | in the file LICENSE in the source distribution or at
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| 117 | L<https://www.openssl.org/source/license.html>.
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| 118 |
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| 119 | =cut
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