1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2009 Rick Macklem, University of Guelph
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31/*
32 * These macros handle nfsvattr fields. They look a bit silly here, but
33 * are quite different for the Darwin port.
34 */
35#define	NFSVNO_ATTRINIT(n)		(VATTR_NULL(&((n)->na_vattr)))
36#define	NFSVNO_SETATTRVAL(n, f, v)	((n)->na_##f = (v))
37#define	NFSVNO_SETACTIVE(n, f)
38#define	NFSVNO_UNSET(n, f)		((n)->na_##f = VNOVAL)
39#define	NFSVNO_NOTSETMODE(n)		((n)->na_mode == ((mode_t)VNOVAL))
40#define	NFSVNO_ISSETMODE(n)		((n)->na_mode != ((mode_t)VNOVAL))
41#define	NFSVNO_NOTSETUID(n)		((n)->na_uid == ((uid_t)VNOVAL))
42#define	NFSVNO_ISSETUID(n)		((n)->na_uid != ((uid_t)VNOVAL))
43#define	NFSVNO_NOTSETGID(n)		((n)->na_gid == ((gid_t)VNOVAL))
44#define	NFSVNO_ISSETGID(n)		((n)->na_gid != ((gid_t)VNOVAL))
45#define	NFSVNO_NOTSETSIZE(n)		((n)->na_size == VNOVAL)
46#define	NFSVNO_ISSETSIZE(n)		((n)->na_size != VNOVAL)
47#define	NFSVNO_NOTSETATIME(n)		((n)->na_atime.tv_sec == VNOVAL)
48#define	NFSVNO_ISSETATIME(n)		((n)->na_atime.tv_sec != VNOVAL)
49#define	NFSVNO_NOTSETMTIME(n)		((n)->na_mtime.tv_sec == VNOVAL)
50#define	NFSVNO_ISSETMTIME(n)		((n)->na_mtime.tv_sec != VNOVAL)
51
52/*
53 * This structure acts as a "catch-all" for information that
54 * needs to be returned by nfsd_fhtovp().
55 */
56struct nfsexstuff {
57	uint64_t nes_exflag;			/* export flags */
58	int	nes_numsecflavor;		/* # of security flavors */
59	int	nes_secflavors[MAXSECFLAVORS];	/* and the flavors */
60};
61
62/*
63 * These are NO-OPS for BSD until Isilon upstreams EXITCODE support.
64 * EXITCODE is an in-memory ring buffer that holds the routines failing status.
65 * This is a valuable tool to use when debugging and analyzing issues.
66 * In addition to recording a routine's failing status, it offers
67 * logging of routines for call stack tracing.
68 * EXITCODE should be used only in routines that return a true errno value, as
69 * that value will be formatted to a displayable errno string.  Routines that
70 * return regular int status that are not true errno should not set EXITCODE.
71 * If you want to log routine tracing, you can add EXITCODE(0) to any routine.
72 * NFS extended the EXITCODE with EXITCODE2 to record either the routine's
73 * exit errno status or the nd_repstat.
74 */
75#define	NFSEXITCODE(error)
76#define	NFSEXITCODE2(error, nd)
77
78#define	NFSVNO_EXINIT(e)		((e)->nes_exflag = 0)
79#define	NFSVNO_EXPORTED(e)		((e)->nes_exflag & MNT_EXPORTED)
80#define	NFSVNO_EXRDONLY(e)		((e)->nes_exflag & MNT_EXRDONLY)
81#define	NFSVNO_EXPORTANON(e)		((e)->nes_exflag & MNT_EXPORTANON)
82#define	NFSVNO_EXSTRICTACCESS(e)	((e)->nes_exflag & MNT_EXSTRICTACCESS)
83#define	NFSVNO_EXV4ONLY(e)		((e)->nes_exflag & MNT_EXV4ONLY)
84#define	NFSVNO_EXTLS(e)			((e)->nes_exflag & MNT_EXTLS)
85#define	NFSVNO_EXTLSCERT(e)		((e)->nes_exflag & MNT_EXTLSCERT)
86#define	NFSVNO_EXTLSCERTUSER(e)		((e)->nes_exflag & MNT_EXTLSCERTUSER)
87
88#define	NFSVNO_SETEXRDONLY(e)	((e)->nes_exflag = (MNT_EXPORTED|MNT_EXRDONLY))
89
90#define	NFSVNO_CMPFH(f1, f2)						\
91    (fsidcmp(&(f1)->fh_fsid, &(f2)->fh_fsid) == 0 &&			\
92     bcmp(&(f1)->fh_fid, &(f2)->fh_fid, sizeof(struct fid)) == 0)
93
94#define	NFSLOCKHASH(f) 							\
95	(&nfslockhash[nfsrv_hashfh(f) % nfsrv_lockhashsize])
96
97#define	NFSFPVNODE(f)	((f)->f_vnode)
98#define	NFSFPCRED(f)	((f)->f_cred)
99#define	NFSFPFLAG(f)	((f)->f_flag)
100
101#define	NFSNAMEICNDSET(n, c, o, f)	do {				\
102	(n)->cn_cred = (c);						\
103	(n)->cn_nameiop = (o);						\
104	(n)->cn_flags = (f);						\
105    } while (0)
106
107#define	NFSPATHLEN_T	size_t
108
109/*
110 * These are set to the minimum and maximum size of a server file
111 * handle.
112 */
113#define	NFSRV_MINFH	(sizeof (fhandle_t))
114#define	NFSRV_MAXFH	(sizeof (fhandle_t))
115
116/* Use this macro for debug printfs. */
117#define	NFSD_DEBUG(level, ...)	do {					\
118		if (nfsd_debuglevel >= (level))				\
119			printf(__VA_ARGS__);				\
120	} while (0)
121