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When using NFS-over-TLS, an NFS client can optionally provide an X.509 certificate to the server during the TLS handshake. For some situations, such as different NFS servers or different certificates being mapped to different user credentials on the NFS server, there may be a need for different mounts to provide different certificates. This new mount option called "tlscertname" may be used to specify a non-default certificate be provided. This alernate certificate will be stored in /etc/rpc.tlsclntd in a file with a name based on what is provided by this mount option.
88 lines
3.2 KiB
C
88 lines
3.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2020 Rick Macklem
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _RPC_RPCSEC_TLS_H_
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#define _RPC_RPCSEC_TLS_H_
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/* Operation values for rpctls syscall. */
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#define RPCTLS_SYSC_CLSETPATH 1
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#define RPCTLS_SYSC_CLSOCKET 2
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#define RPCTLS_SYSC_CLSHUTDOWN 3
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#define RPCTLS_SYSC_SRVSETPATH 4
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#define RPCTLS_SYSC_SRVSOCKET 5
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#define RPCTLS_SYSC_SRVSHUTDOWN 6
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/* System call used by the rpctlscd, rpctlssd daemons. */
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int rpctls_syscall(int, const char *);
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/* Flag bits to indicate certificate results. */
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#define RPCTLS_FLAGS_HANDSHAKE 0x01
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#define RPCTLS_FLAGS_GOTCERT 0x02
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#define RPCTLS_FLAGS_SELFSIGNED 0x04
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#define RPCTLS_FLAGS_VERIFIED 0x08
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#define RPCTLS_FLAGS_DISABLED 0x10
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#define RPCTLS_FLAGS_CERTUSER 0x20
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#define RPCTLS_FLAGS_HANDSHFAIL 0x40
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/* Error return values for upcall rpcs. */
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#define RPCTLSERR_OK 0
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#define RPCTLSERR_NOCLOSE 1
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#define RPCTLSERR_NOSSL 2
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#define RPCTLSERR_NOSOCKET 3
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#ifdef _KERNEL
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/* Functions that perform upcalls to the rpctlsd daemon. */
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enum clnt_stat rpctls_connect(CLIENT *newclient, char *certname,
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struct socket *so, uint64_t *sslp, uint32_t *reterr);
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enum clnt_stat rpctls_cl_handlerecord(uint64_t sec, uint64_t usec,
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uint64_t ssl, uint32_t *reterr);
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enum clnt_stat rpctls_srv_handlerecord(uint64_t sec, uint64_t usec,
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uint64_t ssl, uint32_t *reterr);
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enum clnt_stat rpctls_cl_disconnect(uint64_t sec, uint64_t usec,
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uint64_t ssl, uint32_t *reterr);
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enum clnt_stat rpctls_srv_disconnect(uint64_t sec, uint64_t usec,
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uint64_t ssl, uint32_t *reterr);
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/* Initialization function for rpcsec_tls. */
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int rpctls_init(void);
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/* Get TLS information function. */
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bool rpctls_getinfo(u_int *maxlen, bool rpctlscd_run,
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bool rpctlssd_run);
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/* String for AUTH_TLS reply verifier. */
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#define RPCTLS_START_STRING "STARTTLS"
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/* ssl refno value to indicate TLS handshake being done. */
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#define RPCTLS_REFNO_HANDSHAKE 0xFFFFFFFFFFFFFFFFULL
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#endif /* _KERNEL */
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#endif /* _RPC_RPCSEC_TLS_H_ */
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