Remove the thread argument from all mount->vfs_* function vectors,
[dragonfly.git] / sys / vfs / nfs / nfs_kerb.c
CommitLineData
e07fef60
MD
1/*
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * @(#)nfs_nqlease.c 8.9 (Berkeley) 5/20/95
37 * $FreeBSD: src/sys/nfs/nfs_nqlease.c,v 1.50 2000/02/13 03:32:05 peter Exp $
acde96db 38 * $DragonFly: src/sys/vfs/nfs/nfs_kerb.c,v 1.2 2006/05/06 18:48:53 dillon Exp $
e07fef60
MD
39 */
40
41#include <sys/param.h>
42#include <sys/vnode.h>
43#include <sys/malloc.h>
44#include <sys/mount.h>
45#include <sys/kernel.h>
46#include <sys/proc.h>
47#include <sys/systm.h>
48#include <sys/mbuf.h>
49#include <sys/socket.h>
50#include <sys/socketvar.h>
51#include <sys/protosw.h>
52
53#include <vm/vm_zone.h>
54
55#include <netinet/in.h>
56#include "rpcv2.h"
57#include "nfsproto.h"
58#include "nfs.h"
59#include "nfsm_subs.h"
60#include "xdr_subs.h"
61#include "nfsmount.h"
62#include "nfsnode.h"
63
64#include <sys/thread2.h>
65
66#define TRUE 1
67#define FALSE 0
68
69#ifndef NFS_NOSERVER
70
71/*
72 * Nqnfs client helper daemon. Runs once a second to expire leases.
73 * It also get authorization strings for "kerb" mounts.
74 * It must start at the beginning of the list again after any potential
75 * "sleep" since nfs_reclaim() called from vclean() can pull a node off
76 * the list asynchronously.
77 */
78int
79nfs_clientd(struct nfsmount *nmp, struct ucred *cred, struct nfsd_cargs *ncd,
80 int flag, caddr_t argp, struct thread *td)
81{
82 struct nfsuid *nuidp, *nnuidp;
83 int error = 0;
84
85 /*
86 * If an authorization string is being passed in, get it.
87 */
88 if ((flag & NFSSVC_GOTAUTH) &&
89 (nmp->nm_state & (NFSSTA_WAITAUTH | NFSSTA_DISMNT)) == 0) {
90 if (nmp->nm_state & NFSSTA_HASAUTH)
91 panic("cld kerb");
92 if ((flag & NFSSVC_AUTHINFAIL) == 0) {
93 if (ncd->ncd_authlen <= nmp->nm_authlen &&
94 ncd->ncd_verflen <= nmp->nm_verflen &&
95 !copyin(ncd->ncd_authstr,nmp->nm_authstr,ncd->ncd_authlen)&&
96 !copyin(ncd->ncd_verfstr,nmp->nm_verfstr,ncd->ncd_verflen)){
97 nmp->nm_authtype = ncd->ncd_authtype;
98 nmp->nm_authlen = ncd->ncd_authlen;
99 nmp->nm_verflen = ncd->ncd_verflen;
100#ifdef NFSKERB
101 nmp->nm_key = ncd->ncd_key;
102#endif
103 } else
104 nmp->nm_state |= NFSSTA_AUTHERR;
105 } else
106 nmp->nm_state |= NFSSTA_AUTHERR;
107 nmp->nm_state |= NFSSTA_HASAUTH;
108 wakeup((caddr_t)&nmp->nm_authlen);
109 } else
110 nmp->nm_state |= NFSSTA_WAITAUTH;
111
112 /*
113 * Loop every second updating queue until there is a termination sig.
114 */
115 while ((nmp->nm_state & NFSSTA_DISMNT) == 0) {
116 /*
117 * Get an authorization string, if required.
118 */
119 if ((nmp->nm_state & (NFSSTA_WAITAUTH | NFSSTA_DISMNT | NFSSTA_HASAUTH)) == 0) {
120 ncd->ncd_authuid = nmp->nm_authuid;
121 if (copyout((caddr_t)ncd, argp, sizeof (struct nfsd_cargs)))
122 nmp->nm_state |= NFSSTA_WAITAUTH;
123 else
124 return (ENEEDAUTH);
125 }
126
127 /*
128 * Wait a bit (no pun) and do it again.
129 */
130 if ((nmp->nm_state & NFSSTA_DISMNT) == 0 &&
131 (nmp->nm_state & (NFSSTA_WAITAUTH | NFSSTA_HASAUTH))) {
132 error = tsleep((caddr_t)&nmp->nm_authstr, PCATCH,
133 "nqnfstimr", hz / 3);
134 if (error == EINTR || error == ERESTART)
acde96db 135 (void) dounmount(nmp->nm_mountp, 0);
e07fef60
MD
136 }
137 }
138
139 /*
140 * Finally, we can free up the mount structure.
141 */
142 TAILQ_FOREACH_MUTABLE(nuidp, &nmp->nm_uidlruhead, nu_lru, nnuidp) {
143 LIST_REMOVE(nuidp, nu_hash);
144 TAILQ_REMOVE(&nmp->nm_uidlruhead, nuidp, nu_lru);
145 free((caddr_t)nuidp, M_NFSUID);
146 }
147 nfs_free_mount(nmp);
148 if (error == EWOULDBLOCK)
149 error = 0;
150 return (error);
151}
152
153#endif /* NFS_NOSERVER */
154