FreeBSD/Linux Kernel Cross Reference
sys/rpc/rpcsec_tls.h

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

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