oxmox
7063e2102e
git-subtree-dir: external/nng git-subtree-split: 29b73962b939a6fbbf6ea8d5d7680bb06d0eeb99
122 lines
4.3 KiB
Text
122 lines
4.3 KiB
Text
= nng_tls_options(5)
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//
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// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech>
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// Copyright 2018 Capitar IT Group BV <info@capitar.com>
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// Copyright 2019 Devolutions <info@devolutions.net>
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//
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// This document is supplied under the terms of the MIT License, a
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// copy of which should be located in the distribution where this
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// file was obtained (LICENSE.txt). A copy of the license may also be
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// found online at https://opensource.org/licenses/MIT.
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//
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== NAME
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nng_tls_options - TLS-specific options
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== SYNOPSIS
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[source, c]
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----
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#include <nng/nng.h>
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#define NNG_OPT_TLS_AUTH_MODE "tls-authmode"
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#define NNG_OPT_TLS_CA_FILE "tls-ca-file"
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#define NNG_OPT_TLS_CERT_KEY_FILE "tls-cert-key-file"
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#define NNG_OPT_TLS_CONFIG "tls-config"
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#define NNG_OPT_TLS_SERVER_NAME "tls-server-name"
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#define NNG_OPT_TLS_VERIFIED "tls-verified"
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#define NNG_OPT_TLS_PEER_CN "tls-peer-cn"
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#define NNG_OPT_TLS_PEER_ALT_NAMES "tls-peer-alt-names"
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----
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== DESCRIPTION
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This page documents the various standard options that can be set or
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retrieved on objects using TLS.
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The option names should always be used by their symbolic definitions.
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In the following list of options, the name of the option is supplied,
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along with the data type of the underlying value.
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Some options are only meaningful or supported in certain contexts, or may
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have other access restrictions.
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An attempt has been made to include details about such restrictions in the
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description of the option.
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=== TLS Options
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[[NNG_OPT_TLS_AUTH_MODE]]((`NNG_OPT_TLS_AUTH_MODE`))::
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(`int`)
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Write-only option used to configure the authentication mode used.
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See xref:nng_tls_config_auth_mode.3tls.adoc[`nng_tls_config_auth_mode()`] for
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more details.
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[[NNG_OPT_TLS_CA_FILE]]((`NNG_OPT_TLS_CA_FILE`))::
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(string) Write-only option naming a file containing certificates to
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use for peer validation.
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See xref:nng_tls_config_ca_file.3tls.adoc[`nng_tls_config_ca_file()`] for more
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information.
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[[NNG_OPT_TLS_CERT_KEY_FILE]]((`NNG_OPT_TLS_CERT_KEY_FILE`))::
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(string) Write-only option naming a file containing the local certificate and
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associated private key.
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The private key used must be unencrypted.
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See xref:nng_tls_config_own_cert.3tls.adoc[`nng_tls_config_own_cert()`] for more
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information.
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[[NNG_OPT_TLS_CONFIG]]((`NNG_OPT_TLS_CONFIG`))::
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(`nng_tls_config *`)
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This option references the underlying
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xref:nng_tls_config.5.adoc[TLS configuration object].
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A hold is placed on the underlying
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configuration object before returning it.
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+
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NOTE: The caller should release the hold with
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xref:nng_tls_config_free.3tls.adoc[`nng_tls_config_free()`] when it no
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longer needs the TLS configuration object.
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+
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TIP: Use this option when more advanced TLS configuration is required.
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[[NNG_OPT_TLS_SERVER_NAME]]((`NNG_OPT_TLS_SERVER_NAME`))::
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(string)
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This write-only option is used to specify the name of the server.
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When used with a dialer, this potentially configures SNI (server name
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indication, which is used as a hint by a multihosting server to choose the
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appropriate certificate to provide) and also is used to validate the
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name presented in the server's x509 certificate.
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[[NNG_OPT_TLS_VERIFIED]]((`NNG_OPT_TLS_VERIFIED`))::
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(`bool`)
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This read-only option indicates whether the remote peer has been properly verified using TLS
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authentication.
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May return incorrect results if peer authentication is disabled.
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[[NNG_OPT_TLS_PEER_CN]]((`NNG_OPT_TLS_PEER_CN`))::
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(string)
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This read-only option returns the common name of the peer certificate.
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May return incorrect results if peer authentication is disabled.
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[[NNG_OPT_TLS_PEER_ALT_NAMES]]((`NNG_OPT_TLS_PEER_ALT_NAMES`))::
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(string)
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This read-only option returns string list with the subject alternative names of the
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peer certificate. May return incorrect results if peer authentication is disabled.
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=== Inherited Options
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Generally, the following option values are also available for TLS objects,
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when appropriate for the context:
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* xref:nng_options.5.adoc#NNG_OPT_LOCADDR[`NNG_OPT_LOCADDR`]
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* xref:nng_options.5.adoc#NNG_OPT_REMADDR[`NNG_OPT_REMADDR`]
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* xref:nng_tcp_options.5.adoc#NNG_OPT_TCP_KEEPALIVE[`NNG_OPT_TCP_KEEPALIVE`]
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* xref:nng_tcp_options.5.adoc#NNG_OPT_TCP_NODELAY[`NNG_OPT_TCP_NODELAY`]
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== SEE ALSO
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[.text-left]
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xref:nng_options.5.adoc[nng_options(5)]
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xref:nng_tcp_options.5.adoc[nng_tcp_options(5)]
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xref:nng_tls_config.5.adoc[nng_tls_config(5)],
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xref:nng.7.adoc[nng(7)]
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