xref: /freebsd/sys/rpc/rpcsec_tls.h (revision 19261079)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2020 Rick Macklem
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #ifndef	_RPC_RPCSEC_TLS_H_
31 #define	_RPC_RPCSEC_TLS_H_
32 
33 /* Operation values for rpctls syscall. */
34 #define	RPCTLS_SYSC_CLSETPATH	1
35 #define	RPCTLS_SYSC_CLSOCKET	2
36 #define	RPCTLS_SYSC_CLSHUTDOWN	3
37 #define	RPCTLS_SYSC_SRVSETPATH	4
38 #define	RPCTLS_SYSC_SRVSOCKET	5
39 #define	RPCTLS_SYSC_SRVSHUTDOWN	6
40 
41 /* System call used by the rpctlscd, rpctlssd daemons. */
42 int	rpctls_syscall(int, const char *);
43 
44 /* Flag bits to indicate certificate results. */
45 #define	RPCTLS_FLAGS_HANDSHAKE	0x01
46 #define	RPCTLS_FLAGS_GOTCERT	0x02
47 #define	RPCTLS_FLAGS_SELFSIGNED	0x04
48 #define	RPCTLS_FLAGS_VERIFIED	0x08
49 #define	RPCTLS_FLAGS_DISABLED	0x10
50 #define	RPCTLS_FLAGS_CERTUSER	0x20
51 #define	RPCTLS_FLAGS_HANDSHFAIL	0x40
52 
53 /* Error return values for upcall rpcs. */
54 #define	RPCTLSERR_OK		0
55 #define	RPCTLSERR_NOCLOSE	1
56 #define	RPCTLSERR_NOSSL		2
57 #define	RPCTLSERR_NOSOCKET	3
58 
59 #ifdef _KERNEL
60 /* Functions that perform upcalls to the rpctlsd daemon. */
61 enum clnt_stat	rpctls_connect(CLIENT *newclient, char *certname,
62 		    struct socket *so, uint64_t *sslp, uint32_t *reterr);
63 enum clnt_stat	rpctls_cl_handlerecord(uint64_t sec, uint64_t usec,
64 		    uint64_t ssl, uint32_t *reterr);
65 enum clnt_stat	rpctls_srv_handlerecord(uint64_t sec, uint64_t usec,
66 		    uint64_t ssl, uint32_t *reterr);
67 enum clnt_stat	rpctls_cl_disconnect(uint64_t sec, uint64_t usec,
68 		    uint64_t ssl, uint32_t *reterr);
69 enum clnt_stat	rpctls_srv_disconnect(uint64_t sec, uint64_t usec,
70 		    uint64_t ssl, uint32_t *reterr);
71 
72 /* Initialization function for rpcsec_tls. */
73 int		rpctls_init(void);
74 
75 /* Get TLS information function. */
76 bool		rpctls_getinfo(u_int *maxlen, bool rpctlscd_run,
77 		    bool rpctlssd_run);
78 
79 /* String for AUTH_TLS reply verifier. */
80 #define	RPCTLS_START_STRING	"STARTTLS"
81 
82 /* ssl refno value to indicate TLS handshake being done. */
83 #define	RPCTLS_REFNO_HANDSHAKE	0xFFFFFFFFFFFFFFFFULL
84 
85 #endif	/* _KERNEL */
86 
87 #endif	/* _RPC_RPCSEC_TLS_H_ */
88