| @@ -1,1172 +1,1173 @@ | | | @@ -1,1172 +1,1173 @@ |
1 | /* $NetBSD: nfs_vfsops.c,v 1.229.2.1 2015/11/04 17:32:00 riz Exp $ */ | | 1 | /* $NetBSD: nfs_vfsops.c,v 1.229.2.2 2015/11/08 01:14:20 riz Exp $ */ |
2 | | | 2 | |
3 | /* | | 3 | /* |
4 | * Copyright (c) 1989, 1993, 1995 | | 4 | * Copyright (c) 1989, 1993, 1995 |
5 | * The Regents of the University of California. All rights reserved. | | 5 | * The Regents of the University of California. All rights reserved. |
6 | * | | 6 | * |
7 | * This code is derived from software contributed to Berkeley by | | 7 | * This code is derived from software contributed to Berkeley by |
8 | * Rick Macklem at The University of Guelph. | | 8 | * Rick Macklem at The University of Guelph. |
9 | * | | 9 | * |
10 | * Redistribution and use in source and binary forms, with or without | | 10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions | | 11 | * modification, are permitted provided that the following conditions |
12 | * are met: | | 12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright | | 13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. | | 14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright | | 15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the | | 16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. | | 17 | * documentation and/or other materials provided with the distribution. |
18 | * 3. Neither the name of the University nor the names of its contributors | | 18 | * 3. Neither the name of the University nor the names of its contributors |
19 | * may be used to endorse or promote products derived from this software | | 19 | * may be used to endorse or promote products derived from this software |
20 | * without specific prior written permission. | | 20 | * without specific prior written permission. |
21 | * | | 21 | * |
22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | | 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | | 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | | 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | | 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | | 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | | 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | | 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | | 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | | 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | | 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
32 | * SUCH DAMAGE. | | 32 | * SUCH DAMAGE. |
33 | * | | 33 | * |
34 | * @(#)nfs_vfsops.c 8.12 (Berkeley) 5/20/95 | | 34 | * @(#)nfs_vfsops.c 8.12 (Berkeley) 5/20/95 |
35 | */ | | 35 | */ |
36 | | | 36 | |
37 | #include <sys/cdefs.h> | | 37 | #include <sys/cdefs.h> |
38 | __KERNEL_RCSID(0, "$NetBSD: nfs_vfsops.c,v 1.229.2.1 2015/11/04 17:32:00 riz Exp $"); | | 38 | __KERNEL_RCSID(0, "$NetBSD: nfs_vfsops.c,v 1.229.2.2 2015/11/08 01:14:20 riz Exp $"); |
39 | | | 39 | |
40 | #if defined(_KERNEL_OPT) | | 40 | #if defined(_KERNEL_OPT) |
41 | #include "opt_nfs.h" | | 41 | #include "opt_nfs.h" |
42 | #endif | | 42 | #endif |
43 | | | 43 | |
44 | #include <sys/param.h> | | 44 | #include <sys/param.h> |
45 | #include <sys/ioctl.h> | | 45 | #include <sys/ioctl.h> |
46 | #include <sys/signal.h> | | 46 | #include <sys/signal.h> |
47 | #include <sys/proc.h> | | 47 | #include <sys/proc.h> |
48 | #include <sys/namei.h> | | 48 | #include <sys/namei.h> |
49 | #include <sys/device.h> | | 49 | #include <sys/device.h> |
50 | #include <sys/vnode.h> | | 50 | #include <sys/vnode.h> |
51 | #include <sys/kernel.h> | | 51 | #include <sys/kernel.h> |
52 | #include <sys/mount.h> | | 52 | #include <sys/mount.h> |
53 | #include <sys/buf.h> | | 53 | #include <sys/buf.h> |
54 | #include <sys/mbuf.h> | | 54 | #include <sys/mbuf.h> |
55 | #include <sys/dirent.h> | | 55 | #include <sys/dirent.h> |
56 | #include <sys/socket.h> | | 56 | #include <sys/socket.h> |
57 | #include <sys/socketvar.h> | | 57 | #include <sys/socketvar.h> |
58 | #include <sys/sysctl.h> | | 58 | #include <sys/sysctl.h> |
59 | #include <sys/systm.h> | | 59 | #include <sys/systm.h> |
60 | #include <sys/timetc.h> | | 60 | #include <sys/timetc.h> |
61 | #include <sys/kauth.h> | | 61 | #include <sys/kauth.h> |
62 | #include <sys/module.h> | | 62 | #include <sys/module.h> |
63 | | | 63 | |
64 | #include <net/if.h> | | 64 | #include <net/if.h> |
65 | #include <net/route.h> | | 65 | #include <net/route.h> |
66 | #include <netinet/in.h> | | 66 | #include <netinet/in.h> |
67 | | | 67 | |
68 | #include <nfs/rpcv2.h> | | 68 | #include <nfs/rpcv2.h> |
69 | #include <nfs/nfsproto.h> | | 69 | #include <nfs/nfsproto.h> |
70 | #include <nfs/nfsnode.h> | | 70 | #include <nfs/nfsnode.h> |
71 | #include <nfs/nfs.h> | | 71 | #include <nfs/nfs.h> |
72 | #include <nfs/nfsmount.h> | | 72 | #include <nfs/nfsmount.h> |
73 | #include <nfs/xdr_subs.h> | | 73 | #include <nfs/xdr_subs.h> |
74 | #include <nfs/nfsm_subs.h> | | 74 | #include <nfs/nfsm_subs.h> |
75 | #include <nfs/nfsdiskless.h> | | 75 | #include <nfs/nfsdiskless.h> |
76 | #include <nfs/nfs_var.h> | | 76 | #include <nfs/nfs_var.h> |
77 | | | 77 | |
78 | MODULE(MODULE_CLASS_VFS, nfs, NULL); | | 78 | MODULE(MODULE_CLASS_VFS, nfs, NULL); |
79 | | | 79 | |
80 | extern struct nfsstats nfsstats; | | 80 | extern struct nfsstats nfsstats; |
81 | extern int nfs_ticks; | | 81 | extern int nfs_ticks; |
82 | | | 82 | |
83 | /* | | 83 | /* |
84 | * keep a count of the nfs mounts to generate ficticious drive names | | 84 | * keep a count of the nfs mounts to generate ficticious drive names |
85 | * for the per drive stats. | | 85 | * for the per drive stats. |
86 | */ | | 86 | */ |
87 | unsigned int nfs_mount_count = 0; | | 87 | unsigned int nfs_mount_count = 0; |
88 | | | 88 | |
89 | int nfs_commitsize; | | 89 | int nfs_commitsize; |
90 | | | 90 | |
91 | /* | | 91 | /* |
92 | * nfs vfs operations. | | 92 | * nfs vfs operations. |
93 | */ | | 93 | */ |
94 | | | 94 | |
95 | extern const struct vnodeopv_desc nfsv2_vnodeop_opv_desc; | | 95 | extern const struct vnodeopv_desc nfsv2_vnodeop_opv_desc; |
96 | extern const struct vnodeopv_desc spec_nfsv2nodeop_opv_desc; | | 96 | extern const struct vnodeopv_desc spec_nfsv2nodeop_opv_desc; |
97 | extern const struct vnodeopv_desc fifo_nfsv2nodeop_opv_desc; | | 97 | extern const struct vnodeopv_desc fifo_nfsv2nodeop_opv_desc; |
98 | | | 98 | |
99 | const struct vnodeopv_desc * const nfs_vnodeopv_descs[] = { | | 99 | const struct vnodeopv_desc * const nfs_vnodeopv_descs[] = { |
100 | &nfsv2_vnodeop_opv_desc, | | 100 | &nfsv2_vnodeop_opv_desc, |
101 | &spec_nfsv2nodeop_opv_desc, | | 101 | &spec_nfsv2nodeop_opv_desc, |
102 | &fifo_nfsv2nodeop_opv_desc, | | 102 | &fifo_nfsv2nodeop_opv_desc, |
103 | NULL, | | 103 | NULL, |
104 | }; | | 104 | }; |
105 | | | 105 | |
106 | struct vfsops nfs_vfsops = { | | 106 | struct vfsops nfs_vfsops = { |
107 | .vfs_name = MOUNT_NFS, | | 107 | .vfs_name = MOUNT_NFS, |
108 | .vfs_min_mount_data = sizeof (struct nfs_args), | | 108 | .vfs_min_mount_data = sizeof (struct nfs_args), |
109 | .vfs_mount = nfs_mount, | | 109 | .vfs_mount = nfs_mount, |
110 | .vfs_start = nfs_start, | | 110 | .vfs_start = nfs_start, |
111 | .vfs_unmount = nfs_unmount, | | 111 | .vfs_unmount = nfs_unmount, |
112 | .vfs_root = nfs_root, | | 112 | .vfs_root = nfs_root, |
113 | .vfs_quotactl = (void *)eopnotsupp, | | 113 | .vfs_quotactl = (void *)eopnotsupp, |
114 | .vfs_statvfs = nfs_statvfs, | | 114 | .vfs_statvfs = nfs_statvfs, |
115 | .vfs_sync = nfs_sync, | | 115 | .vfs_sync = nfs_sync, |
116 | .vfs_loadvnode = nfs_loadvnode, | | 116 | .vfs_loadvnode = nfs_loadvnode, |
117 | .vfs_vget = nfs_vget, | | 117 | .vfs_vget = nfs_vget, |
118 | .vfs_fhtovp = nfs_fhtovp, | | 118 | .vfs_fhtovp = nfs_fhtovp, |
119 | .vfs_vptofh = nfs_vptofh, | | 119 | .vfs_vptofh = nfs_vptofh, |
120 | .vfs_init = nfs_vfs_init, | | 120 | .vfs_init = nfs_vfs_init, |
121 | .vfs_done = nfs_vfs_done, | | 121 | .vfs_done = nfs_vfs_done, |
122 | .vfs_mountroot = nfs_mountroot, | | 122 | .vfs_mountroot = nfs_mountroot, |
123 | .vfs_snapshot = (void *)eopnotsupp, | | 123 | .vfs_snapshot = (void *)eopnotsupp, |
124 | .vfs_extattrctl = vfs_stdextattrctl, | | 124 | .vfs_extattrctl = vfs_stdextattrctl, |
125 | .vfs_suspendctl = (void *)eopnotsupp, | | 125 | .vfs_suspendctl = (void *)eopnotsupp, |
126 | .vfs_renamelock_enter = genfs_renamelock_enter, | | 126 | .vfs_renamelock_enter = genfs_renamelock_enter, |
127 | .vfs_renamelock_exit = genfs_renamelock_exit, | | 127 | .vfs_renamelock_exit = genfs_renamelock_exit, |
128 | .vfs_fsync = (void *)eopnotsupp, | | 128 | .vfs_fsync = (void *)eopnotsupp, |
129 | .vfs_opv_descs = nfs_vnodeopv_descs | | 129 | .vfs_opv_descs = nfs_vnodeopv_descs |
130 | }; | | 130 | }; |
131 | | | 131 | |
132 | extern u_int32_t nfs_procids[NFS_NPROCS]; | | 132 | extern u_int32_t nfs_procids[NFS_NPROCS]; |
133 | extern u_int32_t nfs_prog, nfs_vers; | | 133 | extern u_int32_t nfs_prog, nfs_vers; |
134 | static struct sysctllog *nfs_clog; | | 134 | static struct sysctllog *nfs_clog; |
135 | | | 135 | |
136 | static int nfs_mount_diskless(struct nfs_dlmount *, const char *, | | 136 | static int nfs_mount_diskless(struct nfs_dlmount *, const char *, |
137 | struct mount **, struct vnode **, struct lwp *); | | 137 | struct mount **, struct vnode **, struct lwp *); |
138 | static void nfs_sysctl_init(void); | | 138 | static void nfs_sysctl_init(void); |
139 | static void nfs_sysctl_fini(void); | | 139 | static void nfs_sysctl_fini(void); |
140 | | | 140 | |
141 | static int | | 141 | static int |
142 | nfs_modcmd(modcmd_t cmd, void *arg) | | 142 | nfs_modcmd(modcmd_t cmd, void *arg) |
143 | { | | 143 | { |
144 | int error; | | 144 | int error; |
145 | | | 145 | |
146 | switch (cmd) { | | 146 | switch (cmd) { |
147 | case MODULE_CMD_INIT: | | 147 | case MODULE_CMD_INIT: |
148 | error = vfs_attach(&nfs_vfsops); | | 148 | error = vfs_attach(&nfs_vfsops); |
149 | if (error == 0) { | | 149 | if (error == 0) { |
150 | nfs_sysctl_init(); | | 150 | nfs_sysctl_init(); |
151 | } | | 151 | } |
152 | return error; | | 152 | return error; |
153 | case MODULE_CMD_FINI: | | 153 | case MODULE_CMD_FINI: |
154 | error = vfs_detach(&nfs_vfsops); | | 154 | error = vfs_detach(&nfs_vfsops); |
155 | if (error == 0) { | | 155 | if (error == 0) { |
156 | nfs_sysctl_fini(); | | 156 | nfs_sysctl_fini(); |
157 | } | | 157 | } |
158 | return error; | | 158 | return error; |
159 | default: | | 159 | default: |
160 | return ENOTTY; | | 160 | return ENOTTY; |
161 | } | | 161 | } |
162 | } | | 162 | } |
163 | | | 163 | |
164 | /* | | 164 | /* |
165 | * nfs statvfs call | | 165 | * nfs statvfs call |
166 | */ | | 166 | */ |
167 | int | | 167 | int |
168 | nfs_statvfs(struct mount *mp, struct statvfs *sbp) | | 168 | nfs_statvfs(struct mount *mp, struct statvfs *sbp) |
169 | { | | 169 | { |
170 | struct lwp *l = curlwp; | | 170 | struct lwp *l = curlwp; |
171 | struct vnode *vp; | | 171 | struct vnode *vp; |
172 | struct nfs_statfs *sfp; | | 172 | struct nfs_statfs *sfp; |
173 | char *cp; | | 173 | char *cp; |
174 | u_int32_t *tl; | | 174 | u_int32_t *tl; |
175 | int32_t t1, t2; | | 175 | int32_t t1, t2; |
176 | char *bpos, *dpos, *cp2; | | 176 | char *bpos, *dpos, *cp2; |
177 | struct nfsmount *nmp = VFSTONFS(mp); | | 177 | struct nfsmount *nmp = VFSTONFS(mp); |
178 | int error = 0, retattr; | | 178 | int error = 0, retattr; |
179 | #ifdef NFS_V2_ONLY | | 179 | #ifdef NFS_V2_ONLY |
180 | const int v3 = 0; | | 180 | const int v3 = 0; |
181 | #else | | 181 | #else |
182 | int v3 = (nmp->nm_flag & NFSMNT_NFSV3); | | 182 | int v3 = (nmp->nm_flag & NFSMNT_NFSV3); |
183 | #endif | | 183 | #endif |
184 | struct mbuf *mreq, *mrep = NULL, *md, *mb; | | 184 | struct mbuf *mreq, *mrep = NULL, *md, *mb; |
185 | kauth_cred_t cred; | | 185 | kauth_cred_t cred; |
186 | u_quad_t tquad; | | 186 | u_quad_t tquad; |
187 | struct nfsnode *np; | | 187 | struct nfsnode *np; |
188 | | | 188 | |
189 | #ifndef nolint | | 189 | #ifndef nolint |
190 | sfp = (struct nfs_statfs *)0; | | 190 | sfp = (struct nfs_statfs *)0; |
191 | #endif | | 191 | #endif |
192 | vp = nmp->nm_vnode; | | 192 | vp = nmp->nm_vnode; |
193 | np = VTONFS(vp); | | 193 | np = VTONFS(vp); |
194 | cred = kauth_cred_alloc(); | | 194 | cred = kauth_cred_alloc(); |
195 | #ifndef NFS_V2_ONLY | | 195 | #ifndef NFS_V2_ONLY |
196 | if (v3 && (nmp->nm_iflag & NFSMNT_GOTFSINFO) == 0) | | 196 | if (v3 && (nmp->nm_iflag & NFSMNT_GOTFSINFO) == 0) |
197 | (void)nfs_fsinfo(nmp, vp, cred, l); | | 197 | (void)nfs_fsinfo(nmp, vp, cred, l); |
198 | #endif | | 198 | #endif |
199 | nfsstats.rpccnt[NFSPROC_FSSTAT]++; | | 199 | nfsstats.rpccnt[NFSPROC_FSSTAT]++; |
200 | nfsm_reqhead(np, NFSPROC_FSSTAT, NFSX_FH(v3)); | | 200 | nfsm_reqhead(np, NFSPROC_FSSTAT, NFSX_FH(v3)); |
201 | nfsm_fhtom(np, v3); | | 201 | nfsm_fhtom(np, v3); |
202 | nfsm_request(np, NFSPROC_FSSTAT, l, cred); | | 202 | nfsm_request(np, NFSPROC_FSSTAT, l, cred); |
203 | if (v3) | | 203 | if (v3) |
204 | nfsm_postop_attr(vp, retattr, 0); | | 204 | nfsm_postop_attr(vp, retattr, 0); |
205 | if (error) { | | 205 | if (error) { |
206 | if (mrep != NULL) { | | 206 | if (mrep != NULL) { |
207 | if (mrep->m_next != NULL) | | 207 | if (mrep->m_next != NULL) |
208 | printf("nfs_vfsops: nfs_statvfs would lose buffers\n"); | | 208 | printf("nfs_vfsops: nfs_statvfs would lose buffers\n"); |
209 | m_freem(mrep); | | 209 | m_freem(mrep); |
210 | } | | 210 | } |
211 | goto nfsmout; | | 211 | goto nfsmout; |
212 | } | | 212 | } |
213 | nfsm_dissect(sfp, struct nfs_statfs *, NFSX_STATFS(v3)); | | 213 | nfsm_dissect(sfp, struct nfs_statfs *, NFSX_STATFS(v3)); |
214 | sbp->f_flag = nmp->nm_flag; | | 214 | sbp->f_flag = nmp->nm_flag; |
215 | sbp->f_iosize = min(nmp->nm_rsize, nmp->nm_wsize); | | 215 | sbp->f_iosize = min(nmp->nm_rsize, nmp->nm_wsize); |
216 | if (v3) { | | 216 | if (v3) { |
217 | sbp->f_frsize = sbp->f_bsize = NFS_FABLKSIZE; | | 217 | sbp->f_frsize = sbp->f_bsize = NFS_FABLKSIZE; |
218 | tquad = fxdr_hyper(&sfp->sf_tbytes); | | 218 | tquad = fxdr_hyper(&sfp->sf_tbytes); |
219 | sbp->f_blocks = ((quad_t)tquad / (quad_t)NFS_FABLKSIZE); | | 219 | sbp->f_blocks = ((quad_t)tquad / (quad_t)NFS_FABLKSIZE); |
220 | tquad = fxdr_hyper(&sfp->sf_fbytes); | | 220 | tquad = fxdr_hyper(&sfp->sf_fbytes); |
221 | sbp->f_bfree = ((quad_t)tquad / (quad_t)NFS_FABLKSIZE); | | 221 | sbp->f_bfree = ((quad_t)tquad / (quad_t)NFS_FABLKSIZE); |
222 | tquad = fxdr_hyper(&sfp->sf_abytes); | | 222 | tquad = fxdr_hyper(&sfp->sf_abytes); |
223 | tquad = ((quad_t)tquad / (quad_t)NFS_FABLKSIZE); | | 223 | tquad = ((quad_t)tquad / (quad_t)NFS_FABLKSIZE); |
224 | sbp->f_bresvd = sbp->f_bfree - tquad; | | 224 | sbp->f_bresvd = sbp->f_bfree - tquad; |
225 | sbp->f_bavail = tquad; | | 225 | sbp->f_bavail = tquad; |
226 | /* Handle older NFS servers returning negative values */ | | 226 | /* Handle older NFS servers returning negative values */ |
227 | if ((quad_t)sbp->f_bavail < 0) | | 227 | if ((quad_t)sbp->f_bavail < 0) |
228 | sbp->f_bavail = 0; | | 228 | sbp->f_bavail = 0; |
229 | tquad = fxdr_hyper(&sfp->sf_tfiles); | | 229 | tquad = fxdr_hyper(&sfp->sf_tfiles); |
230 | sbp->f_files = tquad; | | 230 | sbp->f_files = tquad; |
231 | tquad = fxdr_hyper(&sfp->sf_ffiles); | | 231 | tquad = fxdr_hyper(&sfp->sf_ffiles); |
232 | sbp->f_ffree = tquad; | | 232 | sbp->f_ffree = tquad; |
233 | sbp->f_favail = tquad; | | 233 | sbp->f_favail = tquad; |
234 | sbp->f_fresvd = 0; | | 234 | sbp->f_fresvd = 0; |
235 | sbp->f_namemax = NFS_MAXNAMLEN; | | 235 | sbp->f_namemax = NFS_MAXNAMLEN; |
236 | } else { | | 236 | } else { |
237 | sbp->f_bsize = NFS_FABLKSIZE; | | 237 | sbp->f_bsize = NFS_FABLKSIZE; |
238 | sbp->f_frsize = fxdr_unsigned(int32_t, sfp->sf_bsize); | | 238 | sbp->f_frsize = fxdr_unsigned(int32_t, sfp->sf_bsize); |
239 | sbp->f_blocks = fxdr_unsigned(int32_t, sfp->sf_blocks); | | 239 | sbp->f_blocks = fxdr_unsigned(int32_t, sfp->sf_blocks); |
240 | sbp->f_bfree = fxdr_unsigned(int32_t, sfp->sf_bfree); | | 240 | sbp->f_bfree = fxdr_unsigned(int32_t, sfp->sf_bfree); |
241 | sbp->f_bavail = fxdr_unsigned(int32_t, sfp->sf_bavail); | | 241 | sbp->f_bavail = fxdr_unsigned(int32_t, sfp->sf_bavail); |
242 | sbp->f_fresvd = 0; | | 242 | sbp->f_fresvd = 0; |
243 | sbp->f_files = 0; | | 243 | sbp->f_files = 0; |
244 | sbp->f_ffree = 0; | | 244 | sbp->f_ffree = 0; |
245 | sbp->f_favail = 0; | | 245 | sbp->f_favail = 0; |
246 | sbp->f_fresvd = 0; | | 246 | sbp->f_fresvd = 0; |
247 | sbp->f_namemax = NFS_MAXNAMLEN; | | 247 | sbp->f_namemax = NFS_MAXNAMLEN; |
248 | } | | 248 | } |
249 | copy_statvfs_info(sbp, mp); | | 249 | copy_statvfs_info(sbp, mp); |
250 | nfsm_reqdone; | | 250 | nfsm_reqdone; |
251 | kauth_cred_free(cred); | | 251 | kauth_cred_free(cred); |
252 | return (error); | | 252 | return (error); |
253 | } | | 253 | } |
254 | | | 254 | |
255 | #ifndef NFS_V2_ONLY | | 255 | #ifndef NFS_V2_ONLY |
256 | /* | | 256 | /* |
257 | * nfs version 3 fsinfo rpc call | | 257 | * nfs version 3 fsinfo rpc call |
258 | */ | | 258 | */ |
259 | int | | 259 | int |
260 | nfs_fsinfo(struct nfsmount *nmp, struct vnode *vp, kauth_cred_t cred, struct lwp *l) | | 260 | nfs_fsinfo(struct nfsmount *nmp, struct vnode *vp, kauth_cred_t cred, struct lwp *l) |
261 | { | | 261 | { |
262 | struct nfsv3_fsinfo *fsp; | | 262 | struct nfsv3_fsinfo *fsp; |
263 | char *cp; | | 263 | char *cp; |
264 | int32_t t1, t2; | | 264 | int32_t t1, t2; |
265 | u_int32_t *tl, pref, xmax; | | 265 | u_int32_t *tl, pref, xmax; |
266 | char *bpos, *dpos, *cp2; | | 266 | char *bpos, *dpos, *cp2; |
267 | int error = 0, retattr; | | 267 | int error = 0, retattr; |
268 | struct mbuf *mreq, *mrep, *md, *mb; | | 268 | struct mbuf *mreq, *mrep, *md, *mb; |
269 | u_int64_t maxfsize; | | 269 | u_int64_t maxfsize; |
270 | struct nfsnode *np = VTONFS(vp); | | 270 | struct nfsnode *np = VTONFS(vp); |
271 | | | 271 | |
272 | nfsstats.rpccnt[NFSPROC_FSINFO]++; | | 272 | nfsstats.rpccnt[NFSPROC_FSINFO]++; |
273 | nfsm_reqhead(np, NFSPROC_FSINFO, NFSX_FH(1)); | | 273 | nfsm_reqhead(np, NFSPROC_FSINFO, NFSX_FH(1)); |
274 | nfsm_fhtom(np, 1); | | 274 | nfsm_fhtom(np, 1); |
275 | nfsm_request(np, NFSPROC_FSINFO, l, cred); | | 275 | nfsm_request(np, NFSPROC_FSINFO, l, cred); |
276 | nfsm_postop_attr(vp, retattr, 0); | | 276 | nfsm_postop_attr(vp, retattr, 0); |
277 | if (!error) { | | 277 | if (!error) { |
278 | nfsm_dissect(fsp, struct nfsv3_fsinfo *, NFSX_V3FSINFO); | | 278 | nfsm_dissect(fsp, struct nfsv3_fsinfo *, NFSX_V3FSINFO); |
279 | pref = fxdr_unsigned(u_int32_t, fsp->fs_wtpref); | | 279 | pref = fxdr_unsigned(u_int32_t, fsp->fs_wtpref); |
280 | if ((nmp->nm_flag & NFSMNT_WSIZE) == 0 && | | 280 | if ((nmp->nm_flag & NFSMNT_WSIZE) == 0 && |
281 | pref < nmp->nm_wsize && pref >= NFS_FABLKSIZE) | | 281 | pref < nmp->nm_wsize && pref >= NFS_FABLKSIZE) |
282 | nmp->nm_wsize = (pref + NFS_FABLKSIZE - 1) & | | 282 | nmp->nm_wsize = (pref + NFS_FABLKSIZE - 1) & |
283 | ~(NFS_FABLKSIZE - 1); | | 283 | ~(NFS_FABLKSIZE - 1); |
284 | xmax = fxdr_unsigned(u_int32_t, fsp->fs_wtmax); | | 284 | xmax = fxdr_unsigned(u_int32_t, fsp->fs_wtmax); |
285 | if (xmax < nmp->nm_wsize && xmax > 0) { | | 285 | if (xmax < nmp->nm_wsize && xmax > 0) { |
286 | nmp->nm_wsize = xmax & ~(NFS_FABLKSIZE - 1); | | 286 | nmp->nm_wsize = xmax & ~(NFS_FABLKSIZE - 1); |
287 | if (nmp->nm_wsize == 0) | | 287 | if (nmp->nm_wsize == 0) |
288 | nmp->nm_wsize = xmax; | | 288 | nmp->nm_wsize = xmax; |
289 | } | | 289 | } |
290 | pref = fxdr_unsigned(u_int32_t, fsp->fs_rtpref); | | 290 | pref = fxdr_unsigned(u_int32_t, fsp->fs_rtpref); |
291 | if ((nmp->nm_flag & NFSMNT_RSIZE) == 0 && | | 291 | if ((nmp->nm_flag & NFSMNT_RSIZE) == 0 && |
292 | pref < nmp->nm_rsize && pref >= NFS_FABLKSIZE) | | 292 | pref < nmp->nm_rsize && pref >= NFS_FABLKSIZE) |
293 | nmp->nm_rsize = (pref + NFS_FABLKSIZE - 1) & | | 293 | nmp->nm_rsize = (pref + NFS_FABLKSIZE - 1) & |
294 | ~(NFS_FABLKSIZE - 1); | | 294 | ~(NFS_FABLKSIZE - 1); |
295 | xmax = fxdr_unsigned(u_int32_t, fsp->fs_rtmax); | | 295 | xmax = fxdr_unsigned(u_int32_t, fsp->fs_rtmax); |
296 | if (xmax < nmp->nm_rsize && xmax > 0) { | | 296 | if (xmax < nmp->nm_rsize && xmax > 0) { |
297 | nmp->nm_rsize = xmax & ~(NFS_FABLKSIZE - 1); | | 297 | nmp->nm_rsize = xmax & ~(NFS_FABLKSIZE - 1); |
298 | if (nmp->nm_rsize == 0) | | 298 | if (nmp->nm_rsize == 0) |
299 | nmp->nm_rsize = xmax; | | 299 | nmp->nm_rsize = xmax; |
300 | } | | 300 | } |
301 | pref = fxdr_unsigned(u_int32_t, fsp->fs_dtpref); | | 301 | pref = fxdr_unsigned(u_int32_t, fsp->fs_dtpref); |
302 | if (pref < nmp->nm_readdirsize && pref >= NFS_DIRFRAGSIZ) | | 302 | if (pref < nmp->nm_readdirsize && pref >= NFS_DIRFRAGSIZ) |
303 | nmp->nm_readdirsize = (pref + NFS_DIRFRAGSIZ - 1) & | | 303 | nmp->nm_readdirsize = (pref + NFS_DIRFRAGSIZ - 1) & |
304 | ~(NFS_DIRFRAGSIZ - 1); | | 304 | ~(NFS_DIRFRAGSIZ - 1); |
305 | if (xmax < nmp->nm_readdirsize && xmax > 0) { | | 305 | if (xmax < nmp->nm_readdirsize && xmax > 0) { |
306 | nmp->nm_readdirsize = xmax & ~(NFS_DIRFRAGSIZ - 1); | | 306 | nmp->nm_readdirsize = xmax & ~(NFS_DIRFRAGSIZ - 1); |
307 | if (nmp->nm_readdirsize == 0) | | 307 | if (nmp->nm_readdirsize == 0) |
308 | nmp->nm_readdirsize = xmax; | | 308 | nmp->nm_readdirsize = xmax; |
309 | } | | 309 | } |
310 | /* XXX */ | | 310 | /* XXX */ |
311 | nmp->nm_maxfilesize = (u_int64_t)0x80000000 * DEV_BSIZE - 1; | | 311 | nmp->nm_maxfilesize = (u_int64_t)0x80000000 * DEV_BSIZE - 1; |
312 | maxfsize = fxdr_hyper(&fsp->fs_maxfilesize); | | 312 | maxfsize = fxdr_hyper(&fsp->fs_maxfilesize); |
313 | if (maxfsize > 0 && maxfsize < nmp->nm_maxfilesize) | | 313 | if (maxfsize > 0 && maxfsize < nmp->nm_maxfilesize) |
314 | nmp->nm_maxfilesize = maxfsize; | | 314 | nmp->nm_maxfilesize = maxfsize; |
315 | nmp->nm_mountp->mnt_fs_bshift = | | 315 | nmp->nm_mountp->mnt_fs_bshift = |
316 | ffs(MIN(nmp->nm_rsize, nmp->nm_wsize)) - 1; | | 316 | ffs(MIN(nmp->nm_rsize, nmp->nm_wsize)) - 1; |
317 | nmp->nm_iflag |= NFSMNT_GOTFSINFO; | | 317 | nmp->nm_iflag |= NFSMNT_GOTFSINFO; |
318 | } | | 318 | } |
319 | nfsm_reqdone; | | 319 | nfsm_reqdone; |
320 | return (error); | | 320 | return (error); |
321 | } | | 321 | } |
322 | #endif | | 322 | #endif |
323 | | | 323 | |
324 | /* | | 324 | /* |
325 | * Mount a remote root fs via. NFS. It goes like this: | | 325 | * Mount a remote root fs via. NFS. It goes like this: |
326 | * - Call nfs_boot_init() to fill in the nfs_diskless struct | | 326 | * - Call nfs_boot_init() to fill in the nfs_diskless struct |
327 | * - build the rootfs mount point and call mountnfs() to do the rest. | | 327 | * - build the rootfs mount point and call mountnfs() to do the rest. |
328 | */ | | 328 | */ |
329 | int | | 329 | int |
330 | nfs_mountroot(void) | | 330 | nfs_mountroot(void) |
331 | { | | 331 | { |
332 | struct timespec ts; | | 332 | struct timespec ts; |
333 | struct nfs_diskless *nd; | | 333 | struct nfs_diskless *nd; |
334 | struct vattr attr; | | 334 | struct vattr attr; |
335 | struct mount *mp; | | 335 | struct mount *mp; |
336 | struct vnode *vp; | | 336 | struct vnode *vp; |
337 | struct lwp *l; | | 337 | struct lwp *l; |
338 | long n; | | 338 | long n; |
339 | int error; | | 339 | int error; |
340 | | | 340 | |
341 | l = curlwp; /* XXX */ | | 341 | l = curlwp; /* XXX */ |
342 | | | 342 | |
343 | if (device_class(root_device) != DV_IFNET) | | 343 | if (device_class(root_device) != DV_IFNET) |
344 | return (ENODEV); | | 344 | return (ENODEV); |
345 | | | 345 | |
346 | /* | | 346 | /* |
347 | * XXX time must be non-zero when we init the interface or else | | 347 | * XXX time must be non-zero when we init the interface or else |
348 | * the arp code will wedge. [Fixed now in if_ether.c] | | 348 | * the arp code will wedge. [Fixed now in if_ether.c] |
349 | * However, the NFS attribute cache gives false "hits" when the | | 349 | * However, the NFS attribute cache gives false "hits" when the |
350 | * current time < nfs_attrtimeo(nmp, np) so keep this in for now. | | 350 | * current time < nfs_attrtimeo(nmp, np) so keep this in for now. |
351 | */ | | 351 | */ |
352 | if (time_second < NFS_MAXATTRTIMO) { | | 352 | if (time_second < NFS_MAXATTRTIMO) { |
353 | ts.tv_sec = NFS_MAXATTRTIMO; | | 353 | ts.tv_sec = NFS_MAXATTRTIMO; |
354 | ts.tv_nsec = 0; | | 354 | ts.tv_nsec = 0; |
355 | tc_setclock(&ts); | | 355 | tc_setclock(&ts); |
356 | } | | 356 | } |
357 | | | 357 | |
358 | /* | | 358 | /* |
359 | * Call nfs_boot_init() to fill in the nfs_diskless struct. | | 359 | * Call nfs_boot_init() to fill in the nfs_diskless struct. |
360 | * Side effect: Finds and configures a network interface. | | 360 | * Side effect: Finds and configures a network interface. |
361 | */ | | 361 | */ |
362 | nd = kmem_zalloc(sizeof(*nd), KM_SLEEP); | | 362 | nd = kmem_zalloc(sizeof(*nd), KM_SLEEP); |
363 | error = nfs_boot_init(nd, l); | | 363 | error = nfs_boot_init(nd, l); |
364 | if (error) { | | 364 | if (error) { |
365 | kmem_free(nd, sizeof(*nd)); | | 365 | kmem_free(nd, sizeof(*nd)); |
366 | return (error); | | 366 | return (error); |
367 | } | | 367 | } |
368 | | | 368 | |
369 | /* | | 369 | /* |
370 | * Create the root mount point. | | 370 | * Create the root mount point. |
371 | */ | | 371 | */ |
372 | error = nfs_mount_diskless(&nd->nd_root, "/", &mp, &vp, l); | | 372 | error = nfs_mount_diskless(&nd->nd_root, "/", &mp, &vp, l); |
373 | if (error) | | 373 | if (error) |
374 | goto out; | | 374 | goto out; |
375 | printf("root on %s\n", nd->nd_root.ndm_host); | | 375 | printf("root on %s\n", nd->nd_root.ndm_host); |
376 | | | 376 | |
377 | /* | | 377 | /* |
378 | * Link it into the mount list. | | 378 | * Link it into the mount list. |
379 | */ | | 379 | */ |
380 | mountlist_append(mp); | | 380 | mountlist_append(mp); |
381 | rootvp = vp; | | 381 | rootvp = vp; |
382 | mp->mnt_vnodecovered = NULLVP; | | 382 | mp->mnt_vnodecovered = NULLVP; |
383 | vfs_unbusy(mp, false, NULL); | | 383 | vfs_unbusy(mp, false, NULL); |
384 | | | 384 | |
385 | /* Get root attributes (for the time). */ | | 385 | /* Get root attributes (for the time). */ |
386 | vn_lock(vp, LK_SHARED | LK_RETRY); | | 386 | vn_lock(vp, LK_SHARED | LK_RETRY); |
387 | error = VOP_GETATTR(vp, &attr, l->l_cred); | | 387 | error = VOP_GETATTR(vp, &attr, l->l_cred); |
388 | VOP_UNLOCK(vp); | | 388 | VOP_UNLOCK(vp); |
389 | if (error) | | 389 | if (error) |
390 | panic("nfs_mountroot: getattr for root"); | | 390 | panic("nfs_mountroot: getattr for root"); |
391 | n = attr.va_atime.tv_sec; | | 391 | n = attr.va_atime.tv_sec; |
392 | #ifdef DEBUG | | 392 | #ifdef DEBUG |
393 | printf("root time: 0x%lx\n", n); | | 393 | printf("root time: 0x%lx\n", n); |
394 | #endif | | 394 | #endif |
395 | setrootfstime(n); | | 395 | setrootfstime(n); |
396 | | | 396 | |
397 | out: | | 397 | out: |
398 | if (error) | | 398 | if (error) |
399 | nfs_boot_cleanup(nd, l); | | 399 | nfs_boot_cleanup(nd, l); |
400 | kmem_free(nd, sizeof(*nd)); | | 400 | kmem_free(nd, sizeof(*nd)); |
401 | return (error); | | 401 | return (error); |
402 | } | | 402 | } |
403 | | | 403 | |
404 | /* | | 404 | /* |
405 | * Internal version of mount system call for diskless setup. | | 405 | * Internal version of mount system call for diskless setup. |
406 | * Separate function because we used to call it twice. | | 406 | * Separate function because we used to call it twice. |
407 | * (once for root and once for swap) | | 407 | * (once for root and once for swap) |
408 | */ | | 408 | */ |
409 | static int | | 409 | static int |
410 | nfs_mount_diskless(struct nfs_dlmount *ndmntp, const char *mntname, struct mount **mpp, struct vnode **vpp, struct lwp *l) | | 410 | nfs_mount_diskless(struct nfs_dlmount *ndmntp, const char *mntname, struct mount **mpp, struct vnode **vpp, struct lwp *l) |
411 | /* mntname: mount point name */ | | 411 | /* mntname: mount point name */ |
412 | { | | 412 | { |
413 | struct mount *mp; | | 413 | struct mount *mp; |
414 | struct mbuf *m; | | 414 | struct mbuf *m; |
415 | int error; | | 415 | int error; |
416 | | | 416 | |
417 | vfs_rootmountalloc(MOUNT_NFS, mntname, &mp); | | 417 | vfs_rootmountalloc(MOUNT_NFS, mntname, &mp); |
418 | | | 418 | |
419 | mp->mnt_op = &nfs_vfsops; | | 419 | mp->mnt_op = &nfs_vfsops; |
420 | | | 420 | |
421 | /* | | 421 | /* |
422 | * Historical practice expects NFS root file systems to | | 422 | * Historical practice expects NFS root file systems to |
423 | * be initially mounted r/w. | | 423 | * be initially mounted r/w. |
424 | */ | | 424 | */ |
425 | mp->mnt_flag &= ~MNT_RDONLY; | | 425 | mp->mnt_flag &= ~MNT_RDONLY; |
426 | | | 426 | |
427 | /* Get mbuf for server sockaddr. */ | | 427 | /* Get mbuf for server sockaddr. */ |
428 | m = m_get(M_WAIT, MT_SONAME); | | 428 | m = m_get(M_WAIT, MT_SONAME); |
429 | if (m == NULL) | | 429 | if (m == NULL) |
430 | panic("nfs_mountroot: mget soname for %s", mntname); | | 430 | panic("nfs_mountroot: mget soname for %s", mntname); |
431 | MCLAIM(m, &nfs_mowner); | | 431 | MCLAIM(m, &nfs_mowner); |
432 | memcpy(mtod(m, void *), (void *)ndmntp->ndm_args.addr, | | 432 | memcpy(mtod(m, void *), (void *)ndmntp->ndm_args.addr, |
433 | (m->m_len = ndmntp->ndm_args.addr->sa_len)); | | 433 | (m->m_len = ndmntp->ndm_args.addr->sa_len)); |
434 | | | 434 | |
435 | error = mountnfs(&ndmntp->ndm_args, mp, m, mntname, | | 435 | error = mountnfs(&ndmntp->ndm_args, mp, m, mntname, |
436 | ndmntp->ndm_args.hostname, vpp, l); | | 436 | ndmntp->ndm_args.hostname, vpp, l); |
437 | if (error) { | | 437 | if (error) { |
438 | vfs_unbusy(mp, false, NULL); | | 438 | vfs_unbusy(mp, false, NULL); |
439 | vfs_destroy(mp); | | 439 | vfs_destroy(mp); |
440 | printf("nfs_mountroot: mount %s failed: %d\n", | | 440 | printf("nfs_mountroot: mount %s failed: %d\n", |
441 | mntname, error); | | 441 | mntname, error); |
442 | } else | | 442 | } else |
443 | *mpp = mp; | | 443 | *mpp = mp; |
444 | | | 444 | |
445 | return (error); | | 445 | return (error); |
446 | } | | 446 | } |
447 | | | 447 | |
448 | void | | 448 | void |
449 | nfs_decode_args(struct nfsmount *nmp, struct nfs_args *argp, struct lwp *l) | | 449 | nfs_decode_args(struct nfsmount *nmp, struct nfs_args *argp, struct lwp *l) |
450 | { | | 450 | { |
451 | int s; | | 451 | int s; |
452 | int adjsock; | | 452 | int adjsock; |
453 | int maxio; | | 453 | int maxio; |
454 | | | 454 | |
455 | s = splsoftnet(); | | 455 | s = splsoftnet(); |
456 | | | 456 | |
457 | /* | | 457 | /* |
458 | * Silently clear NFSMNT_NOCONN if it's a TCP mount, it makes | | 458 | * Silently clear NFSMNT_NOCONN if it's a TCP mount, it makes |
459 | * no sense in that context. | | 459 | * no sense in that context. |
460 | */ | | 460 | */ |
461 | if (argp->sotype == SOCK_STREAM) | | 461 | if (argp->sotype == SOCK_STREAM) |
462 | argp->flags &= ~NFSMNT_NOCONN; | | 462 | argp->flags &= ~NFSMNT_NOCONN; |
463 | | | 463 | |
464 | /* | | 464 | /* |
465 | * Cookie translation is not needed for v2, silently ignore it. | | 465 | * Cookie translation is not needed for v2, silently ignore it. |
466 | */ | | 466 | */ |
467 | if ((argp->flags & (NFSMNT_XLATECOOKIE|NFSMNT_NFSV3)) == | | 467 | if ((argp->flags & (NFSMNT_XLATECOOKIE|NFSMNT_NFSV3)) == |
468 | NFSMNT_XLATECOOKIE) | | 468 | NFSMNT_XLATECOOKIE) |
469 | argp->flags &= ~NFSMNT_XLATECOOKIE; | | 469 | argp->flags &= ~NFSMNT_XLATECOOKIE; |
470 | | | 470 | |
471 | /* Re-bind if rsrvd port requested and wasn't on one */ | | 471 | /* Re-bind if rsrvd port requested and wasn't on one */ |
472 | adjsock = !(nmp->nm_flag & NFSMNT_RESVPORT) | | 472 | adjsock = !(nmp->nm_flag & NFSMNT_RESVPORT) |
473 | && (argp->flags & NFSMNT_RESVPORT); | | 473 | && (argp->flags & NFSMNT_RESVPORT); |
474 | /* Also re-bind if we're switching to/from a connected UDP socket */ | | 474 | /* Also re-bind if we're switching to/from a connected UDP socket */ |
475 | adjsock |= ((nmp->nm_flag & NFSMNT_NOCONN) != | | 475 | adjsock |= ((nmp->nm_flag & NFSMNT_NOCONN) != |
476 | (argp->flags & NFSMNT_NOCONN)); | | 476 | (argp->flags & NFSMNT_NOCONN)); |
477 | | | 477 | |
478 | /* Update flags. */ | | 478 | /* Update flags. */ |
479 | nmp->nm_flag = argp->flags; | | 479 | nmp->nm_flag = argp->flags; |
480 | splx(s); | | 480 | splx(s); |
481 | | | 481 | |
482 | if ((argp->flags & NFSMNT_TIMEO) && argp->timeo > 0) { | | 482 | if ((argp->flags & NFSMNT_TIMEO) && argp->timeo > 0) { |
483 | nmp->nm_timeo = (argp->timeo * NFS_HZ + 5) / 10; | | 483 | nmp->nm_timeo = (argp->timeo * NFS_HZ + 5) / 10; |
484 | if (nmp->nm_timeo < NFS_MINTIMEO) | | 484 | if (nmp->nm_timeo < NFS_MINTIMEO) |
485 | nmp->nm_timeo = NFS_MINTIMEO; | | 485 | nmp->nm_timeo = NFS_MINTIMEO; |
486 | else if (nmp->nm_timeo > NFS_MAXTIMEO) | | 486 | else if (nmp->nm_timeo > NFS_MAXTIMEO) |
487 | nmp->nm_timeo = NFS_MAXTIMEO; | | 487 | nmp->nm_timeo = NFS_MAXTIMEO; |
488 | } | | 488 | } |
489 | | | 489 | |
490 | if ((argp->flags & NFSMNT_RETRANS) && argp->retrans > 1) { | | 490 | if ((argp->flags & NFSMNT_RETRANS) && argp->retrans > 1) { |
491 | nmp->nm_retry = argp->retrans; | | 491 | nmp->nm_retry = argp->retrans; |
492 | if (nmp->nm_retry > NFS_MAXREXMIT) | | 492 | if (nmp->nm_retry > NFS_MAXREXMIT) |
493 | nmp->nm_retry = NFS_MAXREXMIT; | | 493 | nmp->nm_retry = NFS_MAXREXMIT; |
494 | } | | 494 | } |
495 | | | 495 | |
496 | #ifndef NFS_V2_ONLY | | 496 | #ifndef NFS_V2_ONLY |
497 | if (argp->flags & NFSMNT_NFSV3) { | | 497 | if (argp->flags & NFSMNT_NFSV3) { |
498 | if (argp->sotype == SOCK_DGRAM) | | 498 | if (argp->sotype == SOCK_DGRAM) |
499 | maxio = NFS_MAXDGRAMDATA; | | 499 | maxio = NFS_MAXDGRAMDATA; |
500 | else | | 500 | else |
501 | maxio = NFS_MAXDATA; | | 501 | maxio = NFS_MAXDATA; |
502 | } else | | 502 | } else |
503 | #endif | | 503 | #endif |
504 | maxio = NFS_V2MAXDATA; | | 504 | maxio = NFS_V2MAXDATA; |
505 | | | 505 | |
506 | if ((argp->flags & NFSMNT_WSIZE) && argp->wsize > 0) { | | 506 | if ((argp->flags & NFSMNT_WSIZE) && argp->wsize > 0) { |
507 | int osize = nmp->nm_wsize; | | 507 | int osize = nmp->nm_wsize; |
508 | nmp->nm_wsize = argp->wsize; | | 508 | nmp->nm_wsize = argp->wsize; |
509 | /* Round down to multiple of blocksize */ | | 509 | /* Round down to multiple of blocksize */ |
510 | nmp->nm_wsize &= ~(NFS_FABLKSIZE - 1); | | 510 | nmp->nm_wsize &= ~(NFS_FABLKSIZE - 1); |
511 | if (nmp->nm_wsize <= 0) | | 511 | if (nmp->nm_wsize <= 0) |
512 | nmp->nm_wsize = NFS_FABLKSIZE; | | 512 | nmp->nm_wsize = NFS_FABLKSIZE; |
513 | adjsock |= (nmp->nm_wsize != osize); | | 513 | adjsock |= (nmp->nm_wsize != osize); |
514 | } | | 514 | } |
515 | if (nmp->nm_wsize > maxio) | | 515 | if (nmp->nm_wsize > maxio) |
516 | nmp->nm_wsize = maxio; | | 516 | nmp->nm_wsize = maxio; |
517 | if (nmp->nm_wsize > MAXBSIZE) | | 517 | if (nmp->nm_wsize > MAXBSIZE) |
518 | nmp->nm_wsize = MAXBSIZE; | | 518 | nmp->nm_wsize = MAXBSIZE; |
519 | | | 519 | |
520 | if ((argp->flags & NFSMNT_RSIZE) && argp->rsize > 0) { | | 520 | if ((argp->flags & NFSMNT_RSIZE) && argp->rsize > 0) { |
521 | int osize = nmp->nm_rsize; | | 521 | int osize = nmp->nm_rsize; |
522 | nmp->nm_rsize = argp->rsize; | | 522 | nmp->nm_rsize = argp->rsize; |
523 | /* Round down to multiple of blocksize */ | | 523 | /* Round down to multiple of blocksize */ |
524 | nmp->nm_rsize &= ~(NFS_FABLKSIZE - 1); | | 524 | nmp->nm_rsize &= ~(NFS_FABLKSIZE - 1); |
525 | if (nmp->nm_rsize <= 0) | | 525 | if (nmp->nm_rsize <= 0) |
526 | nmp->nm_rsize = NFS_FABLKSIZE; | | 526 | nmp->nm_rsize = NFS_FABLKSIZE; |
527 | adjsock |= (nmp->nm_rsize != osize); | | 527 | adjsock |= (nmp->nm_rsize != osize); |
528 | } | | 528 | } |
529 | if (nmp->nm_rsize > maxio) | | 529 | if (nmp->nm_rsize > maxio) |
530 | nmp->nm_rsize = maxio; | | 530 | nmp->nm_rsize = maxio; |
531 | if (nmp->nm_rsize > MAXBSIZE) | | 531 | if (nmp->nm_rsize > MAXBSIZE) |
532 | nmp->nm_rsize = MAXBSIZE; | | 532 | nmp->nm_rsize = MAXBSIZE; |
533 | | | 533 | |
534 | if ((argp->flags & NFSMNT_READDIRSIZE) && argp->readdirsize > 0) { | | 534 | if ((argp->flags & NFSMNT_READDIRSIZE) && argp->readdirsize > 0) { |
535 | nmp->nm_readdirsize = argp->readdirsize; | | 535 | nmp->nm_readdirsize = argp->readdirsize; |
536 | /* Round down to multiple of minimum blocksize */ | | 536 | /* Round down to multiple of minimum blocksize */ |
537 | nmp->nm_readdirsize &= ~(NFS_DIRFRAGSIZ - 1); | | 537 | nmp->nm_readdirsize &= ~(NFS_DIRFRAGSIZ - 1); |
538 | if (nmp->nm_readdirsize < NFS_DIRFRAGSIZ) | | 538 | if (nmp->nm_readdirsize < NFS_DIRFRAGSIZ) |
539 | nmp->nm_readdirsize = NFS_DIRFRAGSIZ; | | 539 | nmp->nm_readdirsize = NFS_DIRFRAGSIZ; |
540 | /* Bigger than buffer size makes no sense */ | | 540 | /* Bigger than buffer size makes no sense */ |
541 | if (nmp->nm_readdirsize > NFS_DIRBLKSIZ) | | 541 | if (nmp->nm_readdirsize > NFS_DIRBLKSIZ) |
542 | nmp->nm_readdirsize = NFS_DIRBLKSIZ; | | 542 | nmp->nm_readdirsize = NFS_DIRBLKSIZ; |
543 | } else if (argp->flags & NFSMNT_RSIZE) | | 543 | } else if (argp->flags & NFSMNT_RSIZE) |
544 | nmp->nm_readdirsize = nmp->nm_rsize; | | 544 | nmp->nm_readdirsize = nmp->nm_rsize; |
545 | | | 545 | |
546 | if (nmp->nm_readdirsize > maxio) | | 546 | if (nmp->nm_readdirsize > maxio) |
547 | nmp->nm_readdirsize = maxio; | | 547 | nmp->nm_readdirsize = maxio; |
548 | | | 548 | |
549 | if ((argp->flags & NFSMNT_MAXGRPS) && argp->maxgrouplist >= 0 && | | 549 | if ((argp->flags & NFSMNT_MAXGRPS) && argp->maxgrouplist >= 0 && |
550 | argp->maxgrouplist <= NFS_MAXGRPS) | | 550 | argp->maxgrouplist <= NFS_MAXGRPS) |
551 | nmp->nm_numgrps = argp->maxgrouplist; | | 551 | nmp->nm_numgrps = argp->maxgrouplist; |
552 | if ((argp->flags & NFSMNT_READAHEAD) && argp->readahead >= 0 && | | 552 | if ((argp->flags & NFSMNT_READAHEAD) && argp->readahead >= 0 && |
553 | argp->readahead <= NFS_MAXRAHEAD) | | 553 | argp->readahead <= NFS_MAXRAHEAD) |
554 | nmp->nm_readahead = argp->readahead; | | 554 | nmp->nm_readahead = argp->readahead; |
555 | if ((argp->flags & NFSMNT_DEADTHRESH) && argp->deadthresh >= 1 && | | 555 | if ((argp->flags & NFSMNT_DEADTHRESH) && argp->deadthresh >= 1 && |
556 | argp->deadthresh <= NFS_NEVERDEAD) | | 556 | argp->deadthresh <= NFS_NEVERDEAD) |
557 | nmp->nm_deadthresh = argp->deadthresh; | | 557 | nmp->nm_deadthresh = argp->deadthresh; |
558 | | | 558 | |
559 | adjsock |= ((nmp->nm_sotype != argp->sotype) || | | 559 | adjsock |= ((nmp->nm_sotype != argp->sotype) || |
560 | (nmp->nm_soproto != argp->proto)); | | 560 | (nmp->nm_soproto != argp->proto)); |
561 | nmp->nm_sotype = argp->sotype; | | 561 | nmp->nm_sotype = argp->sotype; |
562 | nmp->nm_soproto = argp->proto; | | 562 | nmp->nm_soproto = argp->proto; |
563 | | | 563 | |
564 | if (nmp->nm_so && adjsock) { | | 564 | if (nmp->nm_so && adjsock) { |
565 | nfs_safedisconnect(nmp); | | 565 | nfs_safedisconnect(nmp); |
566 | if (nmp->nm_sotype == SOCK_DGRAM) | | 566 | if (nmp->nm_sotype == SOCK_DGRAM) |
567 | while (nfs_connect(nmp, (struct nfsreq *)0, l)) { | | 567 | while (nfs_connect(nmp, (struct nfsreq *)0, l)) { |
568 | printf("nfs_args: retrying connect\n"); | | 568 | printf("nfs_args: retrying connect\n"); |
569 | kpause("nfscn3", false, hz, NULL); | | 569 | kpause("nfscn3", false, hz, NULL); |
570 | } | | 570 | } |
571 | } | | 571 | } |
572 | } | | 572 | } |
573 | | | 573 | |
574 | /* | | 574 | /* |
575 | * VFS Operations. | | 575 | * VFS Operations. |
576 | * | | 576 | * |
577 | * mount system call | | 577 | * mount system call |
578 | * It seems a bit dumb to copyinstr() the host and path here and then | | 578 | * It seems a bit dumb to copyinstr() the host and path here and then |
579 | * memcpy() them in mountnfs(), but I wanted to detect errors before | | 579 | * memcpy() them in mountnfs(), but I wanted to detect errors before |
580 | * doing the sockargs() call because sockargs() allocates an mbuf and | | 580 | * doing the sockargs() call because sockargs() allocates an mbuf and |
581 | * an error after that means that I have to release the mbuf. | | 581 | * an error after that means that I have to release the mbuf. |
582 | */ | | 582 | */ |
583 | /* ARGSUSED */ | | 583 | /* ARGSUSED */ |
584 | int | | 584 | int |
585 | nfs_mount(struct mount *mp, const char *path, void *data, size_t *data_len) | | 585 | nfs_mount(struct mount *mp, const char *path, void *data, size_t *data_len) |
586 | { | | 586 | { |
587 | struct lwp *l = curlwp; | | 587 | struct lwp *l = curlwp; |
588 | int error; | | 588 | int error; |
589 | struct nfs_args *args = data; | | 589 | struct nfs_args *args = data; |
590 | struct mbuf *nam; | | 590 | struct mbuf *nam; |
591 | struct nfsmount *nmp = VFSTONFS(mp); | | 591 | struct nfsmount *nmp = VFSTONFS(mp); |
592 | struct sockaddr *sa; | | 592 | struct sockaddr *sa; |
593 | struct vnode *vp; | | 593 | struct vnode *vp; |
594 | char *pth, *hst; | | 594 | char *pth, *hst; |
595 | size_t len; | | 595 | size_t len; |
596 | u_char *nfh; | | 596 | u_char *nfh; |
597 | | | 597 | |
598 | if (args == NULL) | | 598 | if (args == NULL) |
599 | return EINVAL; | | 599 | return EINVAL; |
600 | if (*data_len < sizeof *args) | | 600 | if (*data_len < sizeof *args) |
601 | return EINVAL; | | 601 | return EINVAL; |
602 | | | 602 | |
603 | if (mp->mnt_flag & MNT_GETARGS) { | | 603 | if (mp->mnt_flag & MNT_GETARGS) { |
604 | | | 604 | |
605 | if (nmp == NULL) | | 605 | if (nmp == NULL) |
606 | return (EIO); | | 606 | return (EIO); |
607 | if (args->addr != NULL) { | | 607 | if (args->addr != NULL) { |
608 | sa = mtod(nmp->nm_nam, struct sockaddr *); | | 608 | sa = mtod(nmp->nm_nam, struct sockaddr *); |
609 | error = copyout(sa, args->addr, sa->sa_len); | | 609 | error = copyout(sa, args->addr, sa->sa_len); |
610 | if (error) | | 610 | if (error) |
611 | return (error); | | 611 | return (error); |
612 | args->addrlen = sa->sa_len; | | 612 | args->addrlen = sa->sa_len; |
613 | } else | | 613 | } else |
614 | args->addrlen = 0; | | 614 | args->addrlen = 0; |
615 | | | 615 | |
616 | args->version = NFS_ARGSVERSION; | | 616 | args->version = NFS_ARGSVERSION; |
617 | args->sotype = nmp->nm_sotype; | | 617 | args->sotype = nmp->nm_sotype; |
618 | args->proto = nmp->nm_soproto; | | 618 | args->proto = nmp->nm_soproto; |
619 | args->fh = NULL; | | 619 | args->fh = NULL; |
620 | args->fhsize = 0; | | 620 | args->fhsize = 0; |
621 | args->flags = nmp->nm_flag; | | 621 | args->flags = nmp->nm_flag; |
622 | args->wsize = nmp->nm_wsize; | | 622 | args->wsize = nmp->nm_wsize; |
623 | args->rsize = nmp->nm_rsize; | | 623 | args->rsize = nmp->nm_rsize; |
624 | args->readdirsize = nmp->nm_readdirsize; | | 624 | args->readdirsize = nmp->nm_readdirsize; |
625 | args->timeo = nmp->nm_timeo; | | 625 | args->timeo = nmp->nm_timeo; |
626 | args->retrans = nmp->nm_retry; | | 626 | args->retrans = nmp->nm_retry; |
627 | args->maxgrouplist = nmp->nm_numgrps; | | 627 | args->maxgrouplist = nmp->nm_numgrps; |
628 | args->readahead = nmp->nm_readahead; | | 628 | args->readahead = nmp->nm_readahead; |
629 | args->leaseterm = 0; /* dummy */ | | 629 | args->leaseterm = 0; /* dummy */ |
630 | args->deadthresh = nmp->nm_deadthresh; | | 630 | args->deadthresh = nmp->nm_deadthresh; |
631 | args->hostname = NULL; | | 631 | args->hostname = NULL; |
632 | *data_len = sizeof *args; | | 632 | *data_len = sizeof *args; |
633 | return 0; | | 633 | return 0; |
634 | } | | 634 | } |
635 | | | 635 | |
636 | if (args->version != NFS_ARGSVERSION) | | 636 | if (args->version != NFS_ARGSVERSION) |
637 | return (EPROGMISMATCH); | | 637 | return (EPROGMISMATCH); |
638 | if (args->flags & (NFSMNT_NQNFS|NFSMNT_KERB)) | | 638 | if (args->flags & (NFSMNT_NQNFS|NFSMNT_KERB)) |
639 | return (EPROGUNAVAIL); | | 639 | return (EPROGUNAVAIL); |
640 | #ifdef NFS_V2_ONLY | | 640 | #ifdef NFS_V2_ONLY |
641 | if (args->flags & NFSMNT_NFSV3) | | 641 | if (args->flags & NFSMNT_NFSV3) |
642 | return (EPROGMISMATCH); | | 642 | return (EPROGMISMATCH); |
643 | #endif | | 643 | #endif |
644 | if (mp->mnt_flag & MNT_UPDATE) { | | 644 | if (mp->mnt_flag & MNT_UPDATE) { |
645 | if (nmp == NULL) | | 645 | if (nmp == NULL) |
646 | return (EIO); | | 646 | return (EIO); |
647 | /* | | 647 | /* |
648 | * When doing an update, we can't change from or to | | 648 | * When doing an update, we can't change from or to |
649 | * v3, or change cookie translation | | 649 | * v3, or change cookie translation |
650 | */ | | 650 | */ |
651 | args->flags = (args->flags & ~(NFSMNT_NFSV3|NFSMNT_XLATECOOKIE)) | | | 651 | args->flags = (args->flags & ~(NFSMNT_NFSV3|NFSMNT_XLATECOOKIE)) | |
652 | (nmp->nm_flag & (NFSMNT_NFSV3|NFSMNT_XLATECOOKIE)); | | 652 | (nmp->nm_flag & (NFSMNT_NFSV3|NFSMNT_XLATECOOKIE)); |
653 | nfs_decode_args(nmp, args, l); | | 653 | nfs_decode_args(nmp, args, l); |
654 | return (0); | | 654 | return (0); |
655 | } | | 655 | } |
656 | if (args->fhsize < 0 || args->fhsize > NFSX_V3FHMAX) | | 656 | if (args->fhsize < 0 || args->fhsize > NFSX_V3FHMAX) |
657 | return (EINVAL); | | 657 | return (EINVAL); |
658 | nfh = malloc(NFSX_V3FHMAX, M_TEMP, M_WAITOK); | | 658 | nfh = malloc(NFSX_V3FHMAX, M_TEMP, M_WAITOK); |
659 | error = copyin(args->fh, nfh, args->fhsize); | | 659 | error = copyin(args->fh, nfh, args->fhsize); |
660 | if (error) | | 660 | if (error) |
661 | goto free_nfh; | | 661 | goto free_nfh; |
662 | pth = malloc(MNAMELEN, M_TEMP, M_WAITOK); | | 662 | pth = malloc(MNAMELEN, M_TEMP, M_WAITOK); |
663 | error = copyinstr(path, pth, MNAMELEN - 1, &len); | | 663 | error = copyinstr(path, pth, MNAMELEN - 1, &len); |
664 | if (error) | | 664 | if (error) |
665 | goto free_pth; | | 665 | goto free_pth; |
666 | memset(&pth[len], 0, MNAMELEN - len); | | 666 | memset(&pth[len], 0, MNAMELEN - len); |
667 | hst = malloc(MNAMELEN, M_TEMP, M_WAITOK); | | 667 | hst = malloc(MNAMELEN, M_TEMP, M_WAITOK); |
668 | error = copyinstr(args->hostname, hst, MNAMELEN - 1, &len); | | 668 | error = copyinstr(args->hostname, hst, MNAMELEN - 1, &len); |
669 | if (error) | | 669 | if (error) |
670 | goto free_hst; | | 670 | goto free_hst; |
671 | memset(&hst[len], 0, MNAMELEN - len); | | 671 | memset(&hst[len], 0, MNAMELEN - len); |
672 | /* sockargs() call must be after above copyin() calls */ | | 672 | /* sockargs() call must be after above copyin() calls */ |
673 | error = sockargs(&nam, args->addr, args->addrlen, MT_SONAME); | | 673 | error = sockargs(&nam, args->addr, args->addrlen, MT_SONAME); |
674 | if (error) | | 674 | if (error) |
675 | goto free_hst; | | 675 | goto free_hst; |
676 | MCLAIM(nam, &nfs_mowner); | | 676 | MCLAIM(nam, &nfs_mowner); |
677 | args->fh = nfh; | | 677 | args->fh = nfh; |
678 | error = mountnfs(args, mp, nam, pth, hst, &vp, l); | | 678 | error = mountnfs(args, mp, nam, pth, hst, &vp, l); |
679 | | | 679 | |
680 | free_hst: | | 680 | free_hst: |
681 | free(hst, M_TEMP); | | 681 | free(hst, M_TEMP); |
682 | free_pth: | | 682 | free_pth: |
683 | free(pth, M_TEMP); | | 683 | free(pth, M_TEMP); |
684 | free_nfh: | | 684 | free_nfh: |
685 | free(nfh, M_TEMP); | | 685 | free(nfh, M_TEMP); |
686 | | | 686 | |
687 | return (error); | | 687 | return (error); |
688 | } | | 688 | } |
689 | | | 689 | |
690 | /* | | 690 | /* |
691 | * Common code for mount and mountroot | | 691 | * Common code for mount and mountroot |
692 | */ | | 692 | */ |
693 | int | | 693 | int |
694 | mountnfs(struct nfs_args *argp, struct mount *mp, struct mbuf *nam, const char *pth, const char *hst, struct vnode **vpp, struct lwp *l) | | 694 | mountnfs(struct nfs_args *argp, struct mount *mp, struct mbuf *nam, const char *pth, const char *hst, struct vnode **vpp, struct lwp *l) |
695 | { | | 695 | { |
696 | struct nfsmount *nmp; | | 696 | struct nfsmount *nmp; |
697 | struct nfsnode *np; | | 697 | struct nfsnode *np; |
698 | struct vnode *vp; | | 698 | struct vnode *vp; |
699 | int error; | | 699 | int error; |
700 | struct vattr *attrs; | | 700 | struct vattr *attrs; |
701 | kauth_cred_t cr; | | 701 | kauth_cred_t cr; |
702 | char iosname[IOSTATNAMELEN]; | | 702 | char iosname[IOSTATNAMELEN]; |
703 | | | 703 | |
704 | /* | | 704 | /* |
705 | * If the number of nfs iothreads to use has never | | 705 | * If the number of nfs iothreads to use has never |
706 | * been set, create a reasonable number of them. | | 706 | * been set, create a reasonable number of them. |
707 | */ | | 707 | */ |
708 | | | 708 | |
709 | if (nfs_niothreads < 0) { | | 709 | if (nfs_niothreads < 0) { |
710 | nfs_set_niothreads(NFS_DEFAULT_NIOTHREADS); | | 710 | nfs_set_niothreads(NFS_DEFAULT_NIOTHREADS); |
711 | } | | 711 | } |
712 | | | 712 | |
713 | if (mp->mnt_flag & MNT_UPDATE) { | | 713 | if (mp->mnt_flag & MNT_UPDATE) { |
714 | nmp = VFSTONFS(mp); | | 714 | nmp = VFSTONFS(mp); |
715 | /* update paths, file handles, etc, here XXX */ | | 715 | /* update paths, file handles, etc, here XXX */ |
716 | m_freem(nam); | | 716 | m_freem(nam); |
717 | return (0); | | 717 | return (0); |
718 | } else { | | 718 | } else { |
719 | nmp = kmem_zalloc(sizeof(*nmp), KM_SLEEP); | | 719 | nmp = kmem_zalloc(sizeof(*nmp), KM_SLEEP); |
720 | mp->mnt_data = nmp; | | 720 | mp->mnt_data = nmp; |
721 | TAILQ_INIT(&nmp->nm_uidlruhead); | | 721 | TAILQ_INIT(&nmp->nm_uidlruhead); |
722 | TAILQ_INIT(&nmp->nm_bufq); | | 722 | TAILQ_INIT(&nmp->nm_bufq); |
723 | rw_init(&nmp->nm_writeverflock); | | 723 | rw_init(&nmp->nm_writeverflock); |
724 | mutex_init(&nmp->nm_lock, MUTEX_DEFAULT, IPL_NONE); | | 724 | mutex_init(&nmp->nm_lock, MUTEX_DEFAULT, IPL_NONE); |
725 | cv_init(&nmp->nm_rcvcv, "nfsrcv"); | | 725 | cv_init(&nmp->nm_rcvcv, "nfsrcv"); |
726 | cv_init(&nmp->nm_sndcv, "nfssnd"); | | 726 | cv_init(&nmp->nm_sndcv, "nfssnd"); |
727 | cv_init(&nmp->nm_aiocv, "nfsaio"); | | 727 | cv_init(&nmp->nm_aiocv, "nfsaio"); |
728 | cv_init(&nmp->nm_disconcv, "nfsdis"); | | 728 | cv_init(&nmp->nm_disconcv, "nfsdis"); |
729 | } | | 729 | } |
730 | vfs_getnewfsid(mp); | | 730 | vfs_getnewfsid(mp); |
731 | nmp->nm_mountp = mp; | | 731 | nmp->nm_mountp = mp; |
732 | | | 732 | |
733 | #ifndef NFS_V2_ONLY | | 733 | #ifndef NFS_V2_ONLY |
734 | if ((argp->flags & NFSMNT_NFSV3) == 0) | | 734 | if ((argp->flags & NFSMNT_NFSV3) == 0) |
735 | #endif | | 735 | #endif |
736 | { | | 736 | { |
737 | if (argp->fhsize != NFSX_V2FH) { | | 737 | if (argp->fhsize != NFSX_V2FH) { |
738 | return EINVAL; | | 738 | return EINVAL; |
739 | } | | 739 | } |
740 | } | | 740 | } |
741 | | | 741 | |
742 | /* | | 742 | /* |
743 | * V2 can only handle 32 bit filesizes. For v3, nfs_fsinfo | | 743 | * V2 can only handle 32 bit filesizes. For v3, nfs_fsinfo |
744 | * will overwrite this. | | 744 | * will overwrite this. |
745 | */ | | 745 | */ |
746 | nmp->nm_maxfilesize = 0xffffffffLL; | | 746 | nmp->nm_maxfilesize = 0xffffffffLL; |
747 | | | 747 | |
748 | nmp->nm_timeo = NFS_TIMEO; | | 748 | nmp->nm_timeo = NFS_TIMEO; |
749 | nmp->nm_retry = NFS_RETRANS; | | 749 | nmp->nm_retry = NFS_RETRANS; |
750 | nmp->nm_wsize = NFS_WSIZE; | | 750 | nmp->nm_wsize = NFS_WSIZE; |
751 | nmp->nm_rsize = NFS_RSIZE; | | 751 | nmp->nm_rsize = NFS_RSIZE; |
752 | nmp->nm_readdirsize = NFS_READDIRSIZE; | | 752 | nmp->nm_readdirsize = NFS_READDIRSIZE; |
753 | nmp->nm_numgrps = NFS_MAXGRPS; | | 753 | nmp->nm_numgrps = NFS_MAXGRPS; |
754 | nmp->nm_readahead = NFS_DEFRAHEAD; | | 754 | nmp->nm_readahead = NFS_DEFRAHEAD; |
755 | nmp->nm_deadthresh = NFS_DEFDEADTHRESH; | | 755 | nmp->nm_deadthresh = NFS_DEFDEADTHRESH; |
756 | error = set_statvfs_info(pth, UIO_SYSSPACE, hst, UIO_SYSSPACE, | | 756 | error = set_statvfs_info(pth, UIO_SYSSPACE, hst, UIO_SYSSPACE, |
757 | mp->mnt_op->vfs_name, mp, l); | | 757 | mp->mnt_op->vfs_name, mp, l); |
758 | if (error) | | 758 | if (error) |
759 | goto bad; | | 759 | goto bad; |
760 | nmp->nm_nam = nam; | | 760 | nmp->nm_nam = nam; |
761 | | | 761 | |
762 | /* Set up the sockets and per-host congestion */ | | 762 | /* Set up the sockets and per-host congestion */ |
763 | nmp->nm_sotype = argp->sotype; | | 763 | nmp->nm_sotype = argp->sotype; |
764 | nmp->nm_soproto = argp->proto; | | 764 | nmp->nm_soproto = argp->proto; |
765 | | | 765 | |
766 | nfs_decode_args(nmp, argp, l); | | 766 | nfs_decode_args(nmp, argp, l); |
767 | | | 767 | |
768 | mp->mnt_fs_bshift = ffs(MIN(nmp->nm_rsize, nmp->nm_wsize)) - 1; | | 768 | mp->mnt_fs_bshift = ffs(MIN(nmp->nm_rsize, nmp->nm_wsize)) - 1; |
769 | mp->mnt_dev_bshift = DEV_BSHIFT; | | 769 | mp->mnt_dev_bshift = DEV_BSHIFT; |
770 | | | 770 | |
771 | /* | | 771 | /* |
772 | * For Connection based sockets (TCP,...) defer the connect until | | 772 | * For Connection based sockets (TCP,...) defer the connect until |
773 | * the first request, in case the server is not responding. | | 773 | * the first request, in case the server is not responding. |
774 | */ | | 774 | */ |
775 | if (nmp->nm_sotype == SOCK_DGRAM && | | 775 | if (nmp->nm_sotype == SOCK_DGRAM && |
776 | (error = nfs_connect(nmp, (struct nfsreq *)0, l))) | | 776 | (error = nfs_connect(nmp, (struct nfsreq *)0, l))) |
777 | goto bad; | | 777 | goto bad; |
778 | | | 778 | |
779 | /* | | 779 | /* |
780 | * This is silly, but it has to be set so that vinifod() works. | | 780 | * This is silly, but it has to be set so that vinifod() works. |
781 | * We do not want to do an nfs_statvfs() here since we can get | | 781 | * We do not want to do an nfs_statvfs() here since we can get |
782 | * stuck on a dead server and we are holding a lock on the mount | | 782 | * stuck on a dead server and we are holding a lock on the mount |
783 | * point. | | 783 | * point. |
784 | */ | | 784 | */ |
785 | mp->mnt_stat.f_iosize = NFS_MAXDGRAMDATA; | | 785 | mp->mnt_stat.f_iosize = NFS_MAXDGRAMDATA; |
786 | error = nfs_nget(mp, (nfsfh_t *)argp->fh, argp->fhsize, &np); | | 786 | error = nfs_nget(mp, (nfsfh_t *)argp->fh, argp->fhsize, &np); |
787 | if (error) | | 787 | if (error) |
788 | goto bad; | | 788 | goto bad; |
789 | vp = NFSTOV(np); | | 789 | vp = NFSTOV(np); |
790 | attrs = malloc(sizeof(struct vattr), M_TEMP, M_WAITOK); | | 790 | attrs = malloc(sizeof(struct vattr), M_TEMP, M_WAITOK); |
791 | VOP_GETATTR(vp, attrs, l->l_cred); | | 791 | VOP_GETATTR(vp, attrs, l->l_cred); |
792 | if ((nmp->nm_flag & NFSMNT_NFSV3) && (vp->v_type == VDIR)) { | | 792 | if ((nmp->nm_flag & NFSMNT_NFSV3) && (vp->v_type == VDIR)) { |
793 | cr = kauth_cred_alloc(); | | 793 | cr = kauth_cred_alloc(); |
794 | kauth_cred_setuid(cr, attrs->va_uid); | | 794 | kauth_cred_setuid(cr, attrs->va_uid); |
795 | kauth_cred_seteuid(cr, attrs->va_uid); | | 795 | kauth_cred_seteuid(cr, attrs->va_uid); |
796 | kauth_cred_setsvuid(cr, attrs->va_uid); | | 796 | kauth_cred_setsvuid(cr, attrs->va_uid); |
797 | kauth_cred_setgid(cr, attrs->va_gid); | | 797 | kauth_cred_setgid(cr, attrs->va_gid); |
798 | kauth_cred_setegid(cr, attrs->va_gid); | | 798 | kauth_cred_setegid(cr, attrs->va_gid); |
799 | kauth_cred_setsvgid(cr, attrs->va_gid); | | 799 | kauth_cred_setsvgid(cr, attrs->va_gid); |
800 | nfs_cookieheuristic(vp, &nmp->nm_iflag, l, cr); | | 800 | nfs_cookieheuristic(vp, &nmp->nm_iflag, l, cr); |
801 | kauth_cred_free(cr); | | 801 | kauth_cred_free(cr); |
802 | } | | 802 | } |
803 | free(attrs, M_TEMP); | | 803 | free(attrs, M_TEMP); |
804 | | | 804 | |
805 | /* | | 805 | /* |
806 | * A reference count is needed on the nfsnode representing the | | 806 | * A reference count is needed on the nfsnode representing the |
807 | * remote root. If this object is not persistent, then backward | | 807 | * remote root. If this object is not persistent, then backward |
808 | * traversals of the mount point (i.e. "..") will not work if | | 808 | * traversals of the mount point (i.e. "..") will not work if |
809 | * the nfsnode gets flushed out of the cache. Ufs does not have | | 809 | * the nfsnode gets flushed out of the cache. Ufs does not have |
810 | * this problem, because one can identify root inodes by their | | 810 | * this problem, because one can identify root inodes by their |
811 | * number == UFS_ROOTINO (2). So, just unlock, but no rele. | | 811 | * number == UFS_ROOTINO (2). So, just unlock, but no rele. |
812 | */ | | 812 | */ |
813 | | | 813 | |
814 | nmp->nm_vnode = vp; | | 814 | nmp->nm_vnode = vp; |
815 | if (vp->v_type == VNON) | | 815 | if (vp->v_type == VNON) |
816 | vp->v_type = VDIR; | | 816 | vp->v_type = VDIR; |
817 | vp->v_vflag |= VV_ROOT; | | 817 | vp->v_vflag |= VV_ROOT; |
818 | VOP_UNLOCK(vp); | | 818 | VOP_UNLOCK(vp); |
819 | *vpp = vp; | | 819 | *vpp = vp; |
820 | | | 820 | |
821 | snprintf(iosname, sizeof(iosname), "nfs%u", nfs_mount_count++); | | 821 | snprintf(iosname, sizeof(iosname), "nfs%u", nfs_mount_count++); |
822 | nmp->nm_stats = iostat_alloc(IOSTAT_NFS, nmp, iosname); | | 822 | nmp->nm_stats = iostat_alloc(IOSTAT_NFS, nmp, iosname); |
823 | | | 823 | |
824 | return (0); | | 824 | return (0); |
825 | bad: | | 825 | bad: |
826 | nfs_disconnect(nmp); | | 826 | nfs_disconnect(nmp); |
827 | rw_destroy(&nmp->nm_writeverflock); | | 827 | rw_destroy(&nmp->nm_writeverflock); |
828 | mutex_destroy(&nmp->nm_lock); | | 828 | mutex_destroy(&nmp->nm_lock); |
829 | cv_destroy(&nmp->nm_rcvcv); | | 829 | cv_destroy(&nmp->nm_rcvcv); |
830 | cv_destroy(&nmp->nm_sndcv); | | 830 | cv_destroy(&nmp->nm_sndcv); |
831 | cv_destroy(&nmp->nm_aiocv); | | 831 | cv_destroy(&nmp->nm_aiocv); |
832 | cv_destroy(&nmp->nm_disconcv); | | 832 | cv_destroy(&nmp->nm_disconcv); |
833 | kmem_free(nmp, sizeof(*nmp)); | | 833 | kmem_free(nmp, sizeof(*nmp)); |
834 | m_freem(nam); | | 834 | m_freem(nam); |
835 | return (error); | | 835 | return (error); |
836 | } | | 836 | } |
837 | | | 837 | |
838 | /* | | 838 | /* |
839 | * unmount system call | | 839 | * unmount system call |
840 | */ | | 840 | */ |
841 | int | | 841 | int |
842 | nfs_unmount(struct mount *mp, int mntflags) | | 842 | nfs_unmount(struct mount *mp, int mntflags) |
843 | { | | 843 | { |
844 | struct nfsmount *nmp = VFSTONFS(mp); | | 844 | struct nfsmount *nmp = VFSTONFS(mp); |
845 | struct vnode *vp; | | 845 | struct vnode *vp; |
846 | int error, flags = 0; | | 846 | int error, flags = 0; |
847 | | | 847 | |
848 | if (mntflags & MNT_FORCE) { | | 848 | if (mntflags & MNT_FORCE) { |
849 | mutex_enter(&nmp->nm_lock); | | 849 | mutex_enter(&nmp->nm_lock); |
850 | flags |= FORCECLOSE; | | 850 | flags |= FORCECLOSE; |
851 | nmp->nm_iflag |= NFSMNT_DISMNTFORCE; | | 851 | nmp->nm_iflag |= NFSMNT_DISMNTFORCE; |
852 | mutex_exit(&nmp->nm_lock); | | 852 | mutex_exit(&nmp->nm_lock); |
853 | | | 853 | |
854 | } | | 854 | } |
855 | | | 855 | |
856 | /* | | 856 | /* |
857 | * Goes something like this.. | | 857 | * Goes something like this.. |
858 | * - Check for activity on the root vnode (other than ourselves). | | 858 | * - Check for activity on the root vnode (other than ourselves). |
859 | * - Call vflush() to clear out vnodes for this file system, | | 859 | * - Call vflush() to clear out vnodes for this file system, |
860 | * except for the root vnode. | | 860 | * except for the root vnode. |
861 | * - Decrement reference on the vnode representing remote root. | | 861 | * - Decrement reference on the vnode representing remote root. |
862 | * - Close the socket | | 862 | * - Close the socket |
863 | * - Free up the data structures | | 863 | * - Free up the data structures |
864 | */ | | 864 | */ |
865 | /* | | 865 | /* |
866 | * We need to decrement the ref. count on the nfsnode representing | | 866 | * We need to decrement the ref. count on the nfsnode representing |
867 | * the remote root. See comment in mountnfs(). | | 867 | * the remote root. See comment in mountnfs(). |
868 | */ | | 868 | */ |
869 | vp = nmp->nm_vnode; | | 869 | vp = nmp->nm_vnode; |
870 | error = vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); | | 870 | error = vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); |
871 | if (error != 0) | | 871 | if (error != 0) |
872 | goto err; | | 872 | goto err; |
873 | | | 873 | |
874 | if ((mntflags & MNT_FORCE) == 0 && vp->v_usecount > 1) { | | 874 | if ((mntflags & MNT_FORCE) == 0 && vp->v_usecount > 1) { |
875 | VOP_UNLOCK(vp); | | 875 | VOP_UNLOCK(vp); |
876 | error = EBUSY; | | 876 | error = EBUSY; |
877 | goto err; | | 877 | goto err; |
878 | } | | 878 | } |
879 | | | 879 | |
880 | error = vflush(mp, vp, flags); | | 880 | error = vflush(mp, vp, flags); |
881 | if (error) { | | 881 | if (error) { |
882 | VOP_UNLOCK(vp); | | 882 | VOP_UNLOCK(vp); |
883 | goto err; | | 883 | goto err; |
884 | } | | 884 | } |
885 | | | 885 | |
886 | /* | | 886 | /* |
887 | * We are now committed to the unmount; mark the mount structure | | 887 | * We are now committed to the unmount; mark the mount structure |
888 | * as doomed so that any sleepers kicked awake by nfs_disconnect | | 888 | * as doomed so that any sleepers kicked awake by nfs_disconnect |
889 | * will go away cleanly. | | 889 | * will go away cleanly. |
890 | */ | | 890 | */ |
891 | nmp->nm_iflag |= NFSMNT_DISMNT; | | 891 | nmp->nm_iflag |= NFSMNT_DISMNT; |
892 | | | 892 | |
893 | /* | | 893 | /* |
894 | * No new async I/O will be added, but await for pending | | 894 | * No new async I/O will be added, but await for pending |
895 | * ones to drain. | | 895 | * ones to drain. |
896 | */ | | 896 | */ |
897 | while (nfs_iodbusy(nmp)) | | 897 | while (nfs_iodbusy(nmp)) |
898 | kpause("nfsumnt", false, hz, NULL); | | 898 | kpause("nfsumnt", false, hz, NULL); |
899 | | | 899 | |
900 | /* | | 900 | /* |
901 | * Clean up the stats... note that we carefully avoid decrementing | | 901 | * Clean up the stats... note that we carefully avoid decrementing |
902 | * nfs_mount_count here for good reason - we may not be unmounting | | 902 | * nfs_mount_count here for good reason - we may not be unmounting |
903 | * the last thing mounted. | | 903 | * the last thing mounted. |
904 | */ | | 904 | */ |
905 | iostat_free(nmp->nm_stats); | | 905 | iostat_free(nmp->nm_stats); |
906 | | | 906 | |
907 | /* | | 907 | /* |
908 | * There is one reference count to get rid of here | | 908 | * There is one reference count to get rid of here |
909 | * (see comment in mountnfs()). | | 909 | * (see comment in mountnfs()). |
910 | */ | | 910 | */ |
911 | VOP_UNLOCK(vp); | | 911 | VOP_UNLOCK(vp); |
912 | vgone(vp); | | 912 | vgone(vp); |
913 | nfs_disconnect(nmp); | | 913 | nfs_disconnect(nmp); |
914 | m_freem(nmp->nm_nam); | | 914 | m_freem(nmp->nm_nam); |
915 | | | 915 | |
916 | rw_destroy(&nmp->nm_writeverflock); | | 916 | rw_destroy(&nmp->nm_writeverflock); |
917 | mutex_destroy(&nmp->nm_lock); | | 917 | mutex_destroy(&nmp->nm_lock); |
918 | cv_destroy(&nmp->nm_rcvcv); | | 918 | cv_destroy(&nmp->nm_rcvcv); |
919 | cv_destroy(&nmp->nm_sndcv); | | 919 | cv_destroy(&nmp->nm_sndcv); |
920 | cv_destroy(&nmp->nm_aiocv); | | 920 | cv_destroy(&nmp->nm_aiocv); |
921 | cv_destroy(&nmp->nm_disconcv); | | 921 | cv_destroy(&nmp->nm_disconcv); |
922 | kmem_free(nmp, sizeof(*nmp)); | | 922 | kmem_free(nmp, sizeof(*nmp)); |
923 | return (0); | | 923 | return (0); |
924 | | | 924 | |
925 | err: | | 925 | err: |
926 | if (mntflags & MNT_FORCE) { | | 926 | if (mntflags & MNT_FORCE) { |
927 | mutex_enter(&nmp->nm_lock); | | 927 | mutex_enter(&nmp->nm_lock); |
928 | nmp->nm_iflag &= ~NFSMNT_DISMNTFORCE; | | 928 | nmp->nm_iflag &= ~NFSMNT_DISMNTFORCE; |
929 | mutex_exit(&nmp->nm_lock); | | 929 | mutex_exit(&nmp->nm_lock); |
930 | } | | 930 | } |
931 | | | 931 | |
932 | return error; | | 932 | return error; |
933 | } | | 933 | } |
934 | | | 934 | |
935 | /* | | 935 | /* |
936 | * Return root of a filesystem | | 936 | * Return root of a filesystem |
937 | */ | | 937 | */ |
938 | int | | 938 | int |
939 | nfs_root(struct mount *mp, struct vnode **vpp) | | 939 | nfs_root(struct mount *mp, struct vnode **vpp) |
940 | { | | 940 | { |
941 | struct vnode *vp; | | 941 | struct vnode *vp; |
942 | struct nfsmount *nmp; | | 942 | struct nfsmount *nmp; |
943 | int error; | | 943 | int error; |
944 | | | 944 | |
945 | nmp = VFSTONFS(mp); | | 945 | nmp = VFSTONFS(mp); |
946 | vp = nmp->nm_vnode; | | 946 | vp = nmp->nm_vnode; |
947 | vref(vp); | | 947 | vref(vp); |
948 | error = vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); | | 948 | error = vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); |
949 | if (error != 0) { | | 949 | if (error != 0) { |
950 | vrele(vp); | | 950 | vrele(vp); |
951 | return error; | | 951 | return error; |
952 | } | | 952 | } |
953 | *vpp = vp; | | 953 | *vpp = vp; |
954 | return (0); | | 954 | return (0); |
955 | } | | 955 | } |
956 | | | 956 | |
957 | extern int syncprt; | | 957 | extern int syncprt; |
958 | | | 958 | |
959 | static bool | | 959 | static bool |
960 | nfs_sync_selector(void *cl, struct vnode *vp) | | 960 | nfs_sync_selector(void *cl, struct vnode *vp) |
961 | { | | 961 | { |
962 | | | 962 | |
963 | return !LIST_EMPTY(&vp->v_dirtyblkhd) || !UVM_OBJ_IS_CLEAN(&vp->v_uobj); | | 963 | return !LIST_EMPTY(&vp->v_dirtyblkhd) || !UVM_OBJ_IS_CLEAN(&vp->v_uobj); |
964 | } | | 964 | } |
965 | | | 965 | |
966 | /* | | 966 | /* |
967 | * Flush out the buffer cache | | 967 | * Flush out the buffer cache |
968 | */ | | 968 | */ |
969 | /* ARGSUSED */ | | 969 | /* ARGSUSED */ |
970 | int | | 970 | int |
971 | nfs_sync(struct mount *mp, int waitfor, kauth_cred_t cred) | | 971 | nfs_sync(struct mount *mp, int waitfor, kauth_cred_t cred) |
972 | { | | 972 | { |
973 | struct vnode *vp; | | 973 | struct vnode *vp; |
974 | struct vnode_iterator *marker; | | 974 | struct vnode_iterator *marker; |
975 | int error, allerror = 0; | | 975 | int error, allerror = 0; |
976 | | | 976 | |
977 | /* | | 977 | /* |
978 | * Force stale buffer cache information to be flushed. | | 978 | * Force stale buffer cache information to be flushed. |
979 | */ | | 979 | */ |
980 | vfs_vnode_iterator_init(mp, &marker); | | 980 | vfs_vnode_iterator_init(mp, &marker); |
981 | while ((vp = vfs_vnode_iterator_next(marker, nfs_sync_selector, | | 981 | while ((vp = vfs_vnode_iterator_next(marker, nfs_sync_selector, |
982 | NULL))) | | 982 | NULL))) |
983 | { | | 983 | { |
984 | error = vn_lock(vp, LK_EXCLUSIVE); | | 984 | error = vn_lock(vp, LK_EXCLUSIVE); |
985 | if (error) { | | 985 | if (error) { |
986 | vrele(vp); | | 986 | vrele(vp); |
987 | continue; | | 987 | continue; |
988 | } | | 988 | } |
989 | error = VOP_FSYNC(vp, cred, | | 989 | error = VOP_FSYNC(vp, cred, |
990 | waitfor == MNT_WAIT ? FSYNC_WAIT : 0, 0, 0); | | 990 | waitfor == MNT_WAIT ? FSYNC_WAIT : 0, 0, 0); |
991 | if (error) | | 991 | if (error) |
992 | allerror = error; | | 992 | allerror = error; |
993 | vput(vp); | | 993 | vput(vp); |
994 | } | | 994 | } |
995 | vfs_vnode_iterator_destroy(marker); | | 995 | vfs_vnode_iterator_destroy(marker); |
996 | return allerror; | | 996 | return allerror; |
997 | } | | 997 | } |
998 | | | 998 | |
999 | /* | | 999 | /* |
1000 | * NFS flat namespace lookup. | | 1000 | * NFS flat namespace lookup. |
1001 | * Currently unsupported. | | 1001 | * Currently unsupported. |
1002 | */ | | 1002 | */ |
1003 | /* ARGSUSED */ | | 1003 | /* ARGSUSED */ |
1004 | int | | 1004 | int |
1005 | nfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp) | | 1005 | nfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp) |
1006 | { | | 1006 | { |
1007 | | | 1007 | |
1008 | return (EOPNOTSUPP); | | 1008 | return (EOPNOTSUPP); |
1009 | } | | 1009 | } |
1010 | | | 1010 | |
1011 | /* | | 1011 | /* |
1012 | * Do that sysctl thang... | | 1012 | * Do that sysctl thang... |
1013 | */ | | 1013 | */ |
1014 | static int | | 1014 | static int |
1015 | sysctl_vfs_nfs_iothreads(SYSCTLFN_ARGS) | | 1015 | sysctl_vfs_nfs_iothreads(SYSCTLFN_ARGS) |
1016 | { | | 1016 | { |
1017 | struct sysctlnode node; | | 1017 | struct sysctlnode node; |
1018 | int val; | | 1018 | int val; |
1019 | int error; | | 1019 | int error; |
1020 | | | 1020 | |
1021 | val = nfs_niothreads; | | 1021 | val = nfs_niothreads; |
1022 | node = *rnode; | | 1022 | node = *rnode; |
1023 | node.sysctl_data = &val; | | 1023 | node.sysctl_data = &val; |
1024 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); | | 1024 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
1025 | if (error || newp == NULL) | | 1025 | if (error || newp == NULL) |
1026 | return error; | | 1026 | return error; |
1027 | | | 1027 | |
1028 | return nfs_set_niothreads(val); | | 1028 | return nfs_set_niothreads(val); |
1029 | } | | 1029 | } |
1030 | | | 1030 | |
1031 | static void | | 1031 | static void |
1032 | nfs_sysctl_init(void) | | 1032 | nfs_sysctl_init(void) |
1033 | { | | 1033 | { |
1034 | | | 1034 | |
1035 | sysctl_createv(&nfs_clog, 0, NULL, NULL, | | 1035 | sysctl_createv(&nfs_clog, 0, NULL, NULL, |
1036 | CTLFLAG_PERMANENT, | | 1036 | CTLFLAG_PERMANENT, |
1037 | CTLTYPE_NODE, "nfs", | | 1037 | CTLTYPE_NODE, "nfs", |
1038 | SYSCTL_DESCR("NFS vfs options"), | | 1038 | SYSCTL_DESCR("NFS vfs options"), |
1039 | NULL, 0, NULL, 0, | | 1039 | NULL, 0, NULL, 0, |
1040 | CTL_VFS, 2, CTL_EOL); | | 1040 | CTL_VFS, 2, CTL_EOL); |
1041 | /* | | 1041 | /* |
1042 | * XXX the "2" above could be dynamic, thereby eliminating one | | 1042 | * XXX the "2" above could be dynamic, thereby eliminating one |
1043 | * more instance of the "number to vfs" mapping problem, but | | 1043 | * more instance of the "number to vfs" mapping problem, but |
1044 | * "2" is the order as taken from sys/mount.h | | 1044 | * "2" is the order as taken from sys/mount.h |
1045 | */ | | 1045 | */ |
1046 | | | 1046 | |
1047 | sysctl_createv(&nfs_clog, 0, NULL, NULL, | | 1047 | sysctl_createv(&nfs_clog, 0, NULL, NULL, |
1048 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, | | 1048 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
1049 | CTLTYPE_STRUCT, "nfsstats", | | 1049 | CTLTYPE_STRUCT, "nfsstats", |
1050 | SYSCTL_DESCR("NFS operation statistics"), | | 1050 | SYSCTL_DESCR("NFS operation statistics"), |
1051 | NULL, 0, &nfsstats, sizeof(nfsstats), | | 1051 | NULL, 0, &nfsstats, sizeof(nfsstats), |
1052 | CTL_VFS, 2, NFS_NFSSTATS, CTL_EOL); | | 1052 | CTL_VFS, 2, NFS_NFSSTATS, CTL_EOL); |
1053 | sysctl_createv(&nfs_clog, 0, NULL, NULL, | | 1053 | sysctl_createv(&nfs_clog, 0, NULL, NULL, |
1054 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, | | 1054 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
1055 | CTLTYPE_INT, "iothreads", | | 1055 | CTLTYPE_INT, "iothreads", |
1056 | SYSCTL_DESCR("Number of NFS client processes desired"), | | 1056 | SYSCTL_DESCR("Number of NFS client processes desired"), |
1057 | sysctl_vfs_nfs_iothreads, 0, NULL, 0, | | 1057 | sysctl_vfs_nfs_iothreads, 0, NULL, 0, |
1058 | CTL_VFS, 2, NFS_IOTHREADS, CTL_EOL); | | 1058 | CTL_VFS, 2, NFS_IOTHREADS, CTL_EOL); |
1059 | } | | 1059 | } |
1060 | | | 1060 | |
1061 | static void | | 1061 | static void |
1062 | nfs_sysctl_fini(void) | | 1062 | nfs_sysctl_fini(void) |
1063 | { | | 1063 | { |
1064 | | | 1064 | |
1065 | sysctl_teardown(&nfs_clog); | | 1065 | sysctl_teardown(&nfs_clog); |
1066 | } | | 1066 | } |
1067 | | | 1067 | |
1068 | /* ARGSUSED */ | | 1068 | /* ARGSUSED */ |
1069 | int | | 1069 | int |
1070 | nfs_fhtovp(struct mount *mp, struct fid *fid, struct vnode **vpp) | | 1070 | nfs_fhtovp(struct mount *mp, struct fid *fid, struct vnode **vpp) |
1071 | { | | 1071 | { |
1072 | size_t fidsize; | | 1072 | size_t fidsize; |
1073 | size_t fhsize; | | 1073 | size_t fhsize; |
1074 | struct nfsnode *np; | | 1074 | struct nfsnode *np; |
1075 | int error; | | 1075 | int error; |
1076 | struct vattr va; | | 1076 | struct vattr va; |
1077 | | | 1077 | |
1078 | fidsize = fid->fid_len; | | 1078 | fidsize = fid->fid_len; |
1079 | if (fidsize < sizeof(*fid)) { | | 1079 | if (fidsize < sizeof(*fid)) { |
1080 | return EINVAL; | | 1080 | return EINVAL; |
1081 | } | | 1081 | } |
1082 | fhsize = fidsize - sizeof(*fid); | | 1082 | fhsize = fidsize - sizeof(*fid); |
1083 | if ((fhsize % NFSX_UNSIGNED) != 0) { | | 1083 | if ((fhsize % NFSX_UNSIGNED) != 0) { |
1084 | return EINVAL; | | 1084 | return EINVAL; |
1085 | } | | 1085 | } |
1086 | if ((VFSTONFS(mp)->nm_flag & NFSMNT_NFSV3) != 0) { | | 1086 | if ((VFSTONFS(mp)->nm_flag & NFSMNT_NFSV3) != 0) { |
1087 | if (fhsize > NFSX_V3FHMAX || fhsize == 0) { | | 1087 | if (fhsize > NFSX_V3FHMAX || fhsize == 0) { |
1088 | return EINVAL; | | 1088 | return EINVAL; |
1089 | } | | 1089 | } |
1090 | } else { | | 1090 | } else { |
1091 | if (fhsize != NFSX_V2FH) { | | 1091 | if (fhsize != NFSX_V2FH) { |
1092 | return EINVAL; | | 1092 | return EINVAL; |
1093 | } | | 1093 | } |
1094 | } | | 1094 | } |
1095 | error = nfs_nget(mp, (void *)fid->fid_data, fhsize, &np); | | 1095 | error = nfs_nget(mp, (void *)fid->fid_data, fhsize, &np); |
1096 | if (error) { | | 1096 | if (error) { |
1097 | return error; | | 1097 | return error; |
1098 | } | | 1098 | } |
1099 | *vpp = NFSTOV(np); | | 1099 | *vpp = NFSTOV(np); |
1100 | error = VOP_GETATTR(*vpp, &va, kauth_cred_get()); | | 1100 | error = VOP_GETATTR(*vpp, &va, kauth_cred_get()); |
1101 | if (error != 0) { | | 1101 | if (error != 0) { |
1102 | vput(*vpp); | | 1102 | vput(*vpp); |
1103 | *vpp = NULLVP; | | 1103 | *vpp = NULLVP; |
1104 | } | | 1104 | } |
1105 | return error; | | 1105 | return error; |
1106 | } | | 1106 | } |
1107 | | | 1107 | |
1108 | /* ARGSUSED */ | | 1108 | /* ARGSUSED */ |
1109 | int | | 1109 | int |
1110 | nfs_vptofh(struct vnode *vp, struct fid *buf, size_t *bufsize) | | 1110 | nfs_vptofh(struct vnode *vp, struct fid *buf, size_t *bufsize) |
1111 | { | | 1111 | { |
1112 | struct nfsnode *np; | | 1112 | struct nfsnode *np; |
1113 | struct fid *fid; | | 1113 | struct fid *fid; |
1114 | size_t fidsize; | | 1114 | size_t fidsize; |
1115 | int error = 0; | | 1115 | int error = 0; |
1116 | | | 1116 | |
1117 | np = VTONFS(vp); | | 1117 | np = VTONFS(vp); |
1118 | fidsize = sizeof(*fid) + np->n_fhsize; | | 1118 | fidsize = sizeof(*fid) + np->n_fhsize; |
1119 | if (*bufsize < fidsize) { | | 1119 | if (*bufsize < fidsize) { |
1120 | error = E2BIG; | | 1120 | error = E2BIG; |
1121 | } | | 1121 | } |
1122 | *bufsize = fidsize; | | 1122 | *bufsize = fidsize; |
1123 | if (error == 0) { | | 1123 | if (error == 0) { |
1124 | struct fid fid_store; | | 1124 | struct fid fid_store; |
1125 | | | 1125 | |
1126 | fid = &fid_store; | | 1126 | fid = &fid_store; |
1127 | memset(fid, 0, sizeof(*fid)); | | 1127 | memset(fid, 0, sizeof(*fid)); |
1128 | fid->fid_len = fidsize; | | 1128 | fid->fid_len = fidsize; |
1129 | memcpy(buf, fid, sizeof(*fid)); | | 1129 | memcpy(buf, fid, sizeof(*fid)); |
1130 | memcpy(buf->fid_data, np->n_fhp, np->n_fhsize); | | 1130 | memcpy(buf->fid_data, np->n_fhp, np->n_fhsize); |
1131 | } | | 1131 | } |
1132 | return error; | | 1132 | return error; |
1133 | } | | 1133 | } |
1134 | | | 1134 | |
1135 | /* | | 1135 | /* |
1136 | * Vfs start routine, a no-op. | | 1136 | * Vfs start routine, a no-op. |
1137 | */ | | 1137 | */ |
1138 | /* ARGSUSED */ | | 1138 | /* ARGSUSED */ |
1139 | int | | 1139 | int |
1140 | nfs_start(struct mount *mp, int flags) | | 1140 | nfs_start(struct mount *mp, int flags) |
1141 | { | | 1141 | { |
1142 | | | 1142 | |
1143 | return (0); | | 1143 | return (0); |
1144 | } | | 1144 | } |
1145 | | | 1145 | |
1146 | /* | | 1146 | /* |
1147 | * Called once at VFS init to initialize client-specific data structures. | | 1147 | * Called once at VFS init to initialize client-specific data structures. |
1148 | */ | | 1148 | */ |
1149 | void | | 1149 | void |
1150 | nfs_vfs_init(void) | | 1150 | nfs_vfs_init(void) |
1151 | { | | 1151 | { |
1152 | | | 1152 | |
1153 | /* Initialize NFS server / client shared data. */ | | 1153 | /* Initialize NFS server / client shared data. */ |
1154 | nfs_init(); | | 1154 | nfs_init(); |
1155 | nfs_node_init(); | | 1155 | nfs_node_init(); |
1156 | | | 1156 | |
1157 | /* Initialize the kqueue structures */ | | 1157 | /* Initialize the kqueue structures */ |
1158 | nfs_kqinit(); | | 1158 | nfs_kqinit(); |
1159 | /* Initialize the iod structures */ | | 1159 | /* Initialize the iod structures */ |
1160 | nfs_iodinit(); | | 1160 | nfs_iodinit(); |
1161 | | | 1161 | |
1162 | nfs_commitsize = uvmexp.npages << (PAGE_SHIFT - 4); | | 1162 | nfs_commitsize = uvmexp.npages << (PAGE_SHIFT - 4); |
1163 | } | | 1163 | } |
1164 | | | 1164 | |
1165 | void | | 1165 | void |
1166 | nfs_vfs_done(void) | | 1166 | nfs_vfs_done(void) |
1167 | { | | 1167 | { |
1168 | | | 1168 | |
1169 | nfs_node_done(); | | 1169 | nfs_node_done(); |
1170 | nfs_kqfini(); | | 1170 | nfs_kqfini(); |
1171 | nfs_iodfini(); | | 1171 | nfs_iodfini(); |
| | | 1172 | nfs_fini(); |
1172 | } | | 1173 | } |