Annotation of sys/compat/osf1/osf1_mount.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: osf1_mount.c,v 1.11 2006/03/05 21:48:56 miod Exp $ */
2: /* $NetBSD: osf1_mount.c,v 1.14 1999/05/05 01:51:34 cgd Exp $ */
3:
4: /*
5: * Copyright (c) 1999 Christopher G. Demetriou. 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: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed by Christopher G. Demetriou
18: * for the NetBSD Project.
19: * 4. The name of the author may not be used to endorse or promote products
20: * derived from this software without specific prior written permission
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32: */
33:
34: /*
35: * Copyright (c) 1994, 1995 Carnegie-Mellon University.
36: * All rights reserved.
37: *
38: * Author: Chris G. Demetriou
39: *
40: * Permission to use, copy, modify and distribute this software and
41: * its documentation is hereby granted, provided that both the copyright
42: * notice and this permission notice appear in all copies of the
43: * software, derivative works or modified versions, and any portions
44: * thereof, and that both notices appear in supporting documentation.
45: *
46: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
47: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
48: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
49: *
50: * Carnegie Mellon requests users of this software to return to
51: *
52: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
53: * School of Computer Science
54: * Carnegie Mellon University
55: * Pittsburgh PA 15213-3890
56: *
57: * any improvements or extensions that they make and grant Carnegie the
58: * rights to redistribute these changes.
59: */
60:
61: #include <sys/param.h>
62: #include <sys/systm.h>
63: #include <sys/namei.h>
64: #include <sys/proc.h>
65: #include <sys/file.h>
66: #include <sys/filedesc.h>
67: #include <sys/kernel.h>
68: #include <sys/mount.h>
69: #include <sys/vnode.h>
70: #include <sys/syscallargs.h>
71:
72: #include <compat/osf1/osf1.h>
73: #include <compat/osf1/osf1_syscallargs.h>
74: #include <compat/osf1/osf1_util.h>
75: #include <compat/osf1/osf1_cvt.h>
76:
77: #include <net/if.h>
78: #include <netinet/in.h>
79:
80: #include <nfs/rpcv2.h>
81: #include <nfs/nfsproto.h>
82: #include <nfs/nfs.h>
83: #include <nfs/nfsmount.h>
84:
85: #include <ufs/ufs/quota.h>
86: #include <ufs/ufs/ufsmount.h>
87:
88: #include <machine/vmparam.h>
89:
90: #define OSF1_MNT_WAIT 0x1
91: #define OSF1_MNT_NOWAIT 0x2
92:
93: #define OSF1_MNT_FORCE 0x1
94: #define OSF1_MNT_NOFORCE 0x2
95:
96: /* acceptable flags for various calls */
97: #define OSF1_GETFSSTAT_FLAGS (OSF1_MNT_WAIT|OSF1_MNT_NOWAIT)
98: #define OSF1_MOUNT_FLAGS 0xffffffff /* XXX */
99: #define OSF1_UNMOUNT_FLAGS (OSF1_MNT_FORCE|OSF1_MNT_NOFORCE)
100:
101:
102: static int osf1_mount_mfs(struct proc *,
103: struct osf1_sys_mount_args *, struct sys_mount_args *);
104: static int osf1_mount_nfs(struct proc *,
105: struct osf1_sys_mount_args *, struct sys_mount_args *);
106:
107: int
108: osf1_sys_fstatfs(p, v, retval)
109: struct proc *p;
110: void *v;
111: register_t *retval;
112: {
113: struct osf1_sys_fstatfs_args *uap = v;
114: struct file *fp;
115: struct mount *mp;
116: struct statfs *sp;
117: struct osf1_statfs osfs;
118: int error;
119:
120: if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)))
121: return (error);
122: mp = ((struct vnode *)fp->f_data)->v_mount;
123: sp = &mp->mnt_stat;
124: error = VFS_STATFS(mp, sp, p);
125: FRELE(fp);
126: if (error)
127: goto out;
128: sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
129: osf1_cvt_statfs_from_native(sp, &osfs);
130: error = copyout(&osfs, SCARG(uap, buf), min(sizeof osfs,
131: SCARG(uap, len)));
132: out:
133: return (error);
134: }
135:
136: int
137: osf1_sys_getfsstat(p, v, retval)
138: struct proc *p;
139: void *v;
140: register_t *retval;
141: {
142: struct osf1_sys_getfsstat_args *uap = v;
143: struct mount *mp, *nmp;
144: struct statfs *sp;
145: struct osf1_statfs osfs;
146: caddr_t osf_sfsp;
147: long count, maxcount, error;
148:
149: if (SCARG(uap, flags) & ~OSF1_GETFSSTAT_FLAGS)
150: return (EINVAL);
151:
152: maxcount = SCARG(uap, bufsize) / sizeof(struct osf1_statfs);
153: osf_sfsp = (caddr_t)SCARG(uap, buf);
154: count = 0;
155: for (mp = CIRCLEQ_FIRST(&mountlist); mp != CIRCLEQ_END(&mountlist);
156: mp = nmp) {
157: nmp = CIRCLEQ_NEXT(mp, mnt_list);
158: if (osf_sfsp && count < maxcount) {
159: sp = &mp->mnt_stat;
160: /*
161: * If OSF1_MNT_NOWAIT is specified, do not refresh the
162: * fsstat cache. OSF1_MNT_WAIT overrides
163: * OSF1_MNT_NOWAIT.
164: */
165: if (((SCARG(uap, flags) & OSF1_MNT_NOWAIT) == 0 ||
166: (SCARG(uap, flags) & OSF1_MNT_WAIT)) &&
167: (error = VFS_STATFS(mp, sp, p)))
168: continue;
169: sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
170: osf1_cvt_statfs_from_native(sp, &osfs);
171: if ((error = copyout(&osfs, osf_sfsp,
172: sizeof (struct osf1_statfs))))
173: return (error);
174: osf_sfsp += sizeof (struct osf1_statfs);
175: }
176: count++;
177: }
178: if (osf_sfsp && count > maxcount)
179: *retval = maxcount;
180: else
181: *retval = count;
182: return (0);
183: }
184:
185: int
186: osf1_sys_mount(p, v, retval)
187: struct proc *p;
188: void *v;
189: register_t *retval;
190: {
191: struct osf1_sys_mount_args *uap = v;
192: struct sys_mount_args a;
193: int error;
194:
195: SCARG(&a, path) = SCARG(uap, path);
196:
197: if (SCARG(uap, flags) & ~OSF1_MOUNT_FLAGS)
198: return (EINVAL);
199: SCARG(&a, flags) = SCARG(uap, flags); /* XXX - xlate */
200:
201: switch (SCARG(uap, type)) {
202: case OSF1_MOUNT_NFS:
203: if ((error = osf1_mount_nfs(p, uap, &a)))
204: return error;
205: break;
206:
207: case OSF1_MOUNT_MFS:
208: if ((error = osf1_mount_mfs(p, uap, &a)))
209: return error;
210: break;
211:
212: default:
213: return (EINVAL);
214: }
215:
216: return sys_mount(p, &a, retval);
217: }
218:
219: int
220: osf1_sys_statfs(p, v, retval)
221: struct proc *p;
222: void *v;
223: register_t *retval;
224: {
225: struct osf1_sys_statfs_args *uap = v;
226: struct mount *mp;
227: struct statfs *sp;
228: struct osf1_statfs osfs;
229: int error;
230: struct nameidata nd;
231:
232: NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
233: if ((error = namei(&nd)))
234: return (error);
235: mp = nd.ni_vp->v_mount;
236: sp = &mp->mnt_stat;
237: vrele(nd.ni_vp);
238: if ((error = VFS_STATFS(mp, sp, p)))
239: return (error);
240: sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
241: osf1_cvt_statfs_from_native(sp, &osfs);
242: return copyout(&osfs, SCARG(uap, buf), min(sizeof osfs,
243: SCARG(uap, len)));
244: }
245:
246: int
247: osf1_sys_unmount(p, v, retval)
248: struct proc *p;
249: void *v;
250: register_t *retval;
251: {
252: struct osf1_sys_unmount_args *uap = v;
253: struct sys_unmount_args a;
254:
255: SCARG(&a, path) = SCARG(uap, path);
256:
257: if (SCARG(uap, flags) & ~OSF1_UNMOUNT_FLAGS)
258: return (EINVAL);
259: SCARG(&a, flags) = 0;
260: if ((SCARG(uap, flags) & OSF1_MNT_FORCE) &&
261: (SCARG(uap, flags) & OSF1_MNT_NOFORCE) == 0)
262: SCARG(&a, flags) |= MNT_FORCE;
263:
264: return sys_unmount(p, &a, retval);
265: }
266:
267: static int
268: osf1_mount_mfs(p, osf_argp, bsd_argp)
269: struct proc *p;
270: struct osf1_sys_mount_args *osf_argp;
271: struct sys_mount_args *bsd_argp;
272: {
273: struct osf1_mfs_args osf_ma;
274: struct mfs_args bsd_ma;
275: caddr_t sg = stackgap_init(p->p_emul);
276: int error, len;
277: static const char mfs_name[] = MOUNT_MFS;
278:
279: if ((error = copyin(SCARG(osf_argp, data), &osf_ma, sizeof osf_ma)))
280: return error;
281:
282: memset(&bsd_ma, 0, sizeof bsd_ma);
283: bsd_ma.fspec = osf_ma.name;
284: /* XXX export args */
285: bsd_ma.base = osf_ma.base;
286: bsd_ma.size = osf_ma.size;
287:
288: SCARG(bsd_argp, data) = stackgap_alloc(&sg, sizeof bsd_ma);
289: if ((error = copyout(&bsd_ma, SCARG(bsd_argp, data), sizeof bsd_ma)))
290: return error;
291:
292: len = strlen(mfs_name) + 1;
293: SCARG(bsd_argp, type) = stackgap_alloc(&sg, len);
294: if ((error = copyout(mfs_name, (void *)SCARG(bsd_argp, type), len)))
295: return error;
296:
297: return 0;
298: }
299:
300: static int
301: osf1_mount_nfs(p, osf_argp, bsd_argp)
302: struct proc *p;
303: struct osf1_sys_mount_args *osf_argp;
304: struct sys_mount_args *bsd_argp;
305: {
306: struct osf1_nfs_args osf_na;
307: struct nfs_args bsd_na;
308: caddr_t sg = stackgap_init(p->p_emul);
309: int error, len;
310: static const char nfs_name[] = MOUNT_NFS;
311: unsigned long leftovers;
312:
313: if ((error = copyin(SCARG(osf_argp, data), &osf_na, sizeof osf_na)))
314: return error;
315:
316: memset(&bsd_na, 0, sizeof bsd_na);
317: bsd_na.addr = (struct sockaddr *)osf_na.addr;
318: bsd_na.addrlen = sizeof (struct sockaddr_in);
319: bsd_na.fh = osf_na.fh;
320:
321: /* translate flags */
322: bsd_na.flags = emul_flags_translate(osf1_nfs_mount_flags_xtab,
323: osf_na.flags, &leftovers);
324: if (leftovers & OSF1_NFSMNT_HOSTNAME) {
325: leftovers &= ~OSF1_NFSMNT_HOSTNAME;
326: bsd_na.hostname = osf_na.hostname;
327: } else {
328: /* XXX FILL IN HOST NAME WITH IPADDR? */
329: }
330: if (leftovers & OSF1_NFSMNT_TCP) {
331: leftovers &= ~OSF1_NFSMNT_TCP;
332: bsd_na.sotype = SOCK_DGRAM;
333: bsd_na.proto = 0;
334: } else {
335: bsd_na.sotype = SOCK_STREAM;
336: bsd_na.proto = 0;
337: }
338: if (leftovers != 0)
339: return (EINVAL);
340:
341: /* copy structure elements based on flags */
342: if (bsd_na.flags & NFSMNT_WSIZE)
343: bsd_na.wsize = osf_na.wsize;
344: if (bsd_na.flags & NFSMNT_RSIZE)
345: bsd_na.rsize = osf_na.rsize;
346: if (bsd_na.flags & NFSMNT_TIMEO)
347: bsd_na.timeo = osf_na.timeo;
348: if (bsd_na.flags & NFSMNT_RETRANS)
349: bsd_na.retrans = osf_na.retrans;
350:
351: SCARG(bsd_argp, data) = stackgap_alloc(&sg, sizeof bsd_na);
352: if ((error = copyout(&bsd_na, SCARG(bsd_argp, data), sizeof bsd_na)))
353: return error;
354:
355: len = strlen(nfs_name) + 1;
356: SCARG(bsd_argp, type) = stackgap_alloc(&sg, len);
357: if ((error = copyout(MOUNT_NFS, (void *)SCARG(bsd_argp, type), len)))
358: return error;
359:
360: return 0;
361: }
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