amq_subr.c revision 131706 
1/*
2 * Copyright (c) 1997-2004 Erez Zadok
3 * Copyright (c) 1990 Jan-Simon Pendry
4 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
5 * Copyright (c) 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Jan-Simon Pendry at Imperial College, London.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgment:
21 *      This product includes software developed by the University of
22 *      California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 *    may be used to endorse or promote products derived from this software
25 *    without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 *      %W% (Berkeley) %G%
40 *
41 * $Id: amq_subr.c,v 1.6.2.6 2004/01/19 00:25:55 ezk Exp $
42 * $FreeBSD: head/contrib/amd/amd/amq_subr.c 131706 2004-07-06 13:16:49Z mbr $
43 *
44 */
45/*
46 * Auxiliary routines for amq tool
47 */
48
49#ifdef HAVE_CONFIG_H
50# include <config.h>
51#endif /* HAVE_CONFIG_H */
52#include <am_defs.h>
53#include <amd.h>
54
55/* forward definitions */
56bool_t xdr_amq_mount_tree_node(XDR *xdrs, amq_mount_tree *objp);
57bool_t xdr_amq_mount_subtree(XDR *xdrs, amq_mount_tree *objp);
58
59
60voidp
61amqproc_null_1_svc(voidp argp, struct svc_req *rqstp)
62{
63  static char res;
64
65  return (voidp) &res;
66}
67
68
69/*
70 * Return a sub-tree of mounts
71 */
72amq_mount_tree_p *
73amqproc_mnttree_1_svc(voidp argp, struct svc_req *rqstp)
74{
75  static am_node *mp;
76
77  mp = find_ap(*(char **) argp);
78  return (amq_mount_tree_p *) ((void *)&mp);
79}
80
81
82/*
83 * Unmount a single node
84 */
85voidp
86amqproc_umnt_1_svc(voidp argp, struct svc_req *rqstp)
87{
88  static char res;
89  am_node *mp = find_ap(*(char **) argp);
90
91  if (mp)
92    forcibly_timeout_mp(mp);
93
94  return (voidp) &res;
95}
96
97
98/*
99 * Return global statistics
100 */
101amq_mount_stats *
102amqproc_stats_1_svc(voidp argp, struct svc_req *rqstp)
103{
104  return (amq_mount_stats *) ((void *)&amd_stats);
105}
106
107
108/*
109 * Return the entire tree of mount nodes
110 */
111amq_mount_tree_list *
112amqproc_export_1_svc(voidp argp, struct svc_req *rqstp)
113{
114  static amq_mount_tree_list aml;
115
116  aml.amq_mount_tree_list_val = (amq_mount_tree_p *) &exported_ap[0];
117  aml.amq_mount_tree_list_len = 1;	/* XXX */
118
119  return &aml;
120}
121
122
123int *
124amqproc_setopt_1_svc(voidp argp, struct svc_req *rqstp)
125{
126  static int rc;
127  amq_setopt *opt = (amq_setopt *) argp;
128
129  rc = 0;
130
131  switch (opt->as_opt) {
132
133  case AMOPT_DEBUG:
134#ifdef DEBUG
135    if (debug_option(opt->as_str))
136#endif /* DEBUG */
137      rc = EINVAL;
138    break;
139
140  case AMOPT_LOGFILE:
141    if (gopt.logfile && opt->as_str
142	&& STREQ(gopt.logfile, opt->as_str)) {
143      if (switch_to_logfile(opt->as_str, orig_umask))
144	rc = EINVAL;
145    } else {
146      rc = EACCES;
147    }
148    break;
149
150  case AMOPT_XLOG:
151    if (switch_option(opt->as_str))
152      rc = EINVAL;
153    break;
154
155  case AMOPT_FLUSHMAPC:
156    if (amd_state == Run) {
157      plog(XLOG_INFO, "amq says flush cache");
158      do_mapc_reload = 0;
159      flush_nfs_fhandle_cache((fserver *) 0);
160      flush_srvr_nfs_cache();
161    }
162    break;
163  }
164
165  return &rc;
166}
167
168
169amq_mount_info_list *
170amqproc_getmntfs_1_svc(voidp argp, struct svc_req *rqstp)
171{
172  return (amq_mount_info_list *) ((void *)&mfhead); /* XXX */
173}
174
175
176amq_string *
177amqproc_getvers_1_svc(voidp argp, struct svc_req *rqstp)
178{
179  static amq_string res;
180
181  res = get_version_string();
182  return &res;
183}
184
185
186/* get PID of remote amd */
187int *
188amqproc_getpid_1_svc(voidp argp, struct svc_req *rqstp)
189{
190  static int res;
191
192  res = getpid();
193  return &res;
194}
195
196
197/*
198 * XDR routines.
199 */
200
201
202bool_t
203xdr_amq_setopt(XDR *xdrs, amq_setopt *objp)
204{
205  if (!xdr_enum(xdrs, (enum_t *) & objp->as_opt)) {
206    return (FALSE);
207  }
208  if (!xdr_string(xdrs, &objp->as_str, AMQ_STRLEN)) {
209    return (FALSE);
210  }
211  return (TRUE);
212}
213
214
215/*
216 * More XDR routines  - Should be used for OUTPUT ONLY.
217 */
218bool_t
219xdr_amq_mount_tree_node(XDR *xdrs, amq_mount_tree *objp)
220{
221  am_node *mp = (am_node *) objp;
222  long mtime;
223
224  if (!xdr_amq_string(xdrs, &mp->am_mnt->mf_info)) {
225    return (FALSE);
226  }
227  if (!xdr_amq_string(xdrs, &mp->am_path)) {
228    return (FALSE);
229  }
230  if (!xdr_amq_string(xdrs, mp->am_link ? &mp->am_link : &mp->am_mnt->mf_mount)) {
231    return (FALSE);
232  }
233  if (!xdr_amq_string(xdrs, &mp->am_mnt->mf_ops->fs_type)) {
234    return (FALSE);
235  }
236  mtime = mp->am_stats.s_mtime;
237  if (!xdr_long(xdrs, &mtime)) {
238    return (FALSE);
239  }
240  if (!xdr_u_short(xdrs, &mp->am_stats.s_uid)) {
241    return (FALSE);
242  }
243  if (!xdr_int(xdrs, &mp->am_stats.s_getattr)) {
244    return (FALSE);
245  }
246  if (!xdr_int(xdrs, &mp->am_stats.s_lookup)) {
247    return (FALSE);
248  }
249  if (!xdr_int(xdrs, &mp->am_stats.s_readdir)) {
250    return (FALSE);
251  }
252  if (!xdr_int(xdrs, &mp->am_stats.s_readlink)) {
253    return (FALSE);
254  }
255  if (!xdr_int(xdrs, &mp->am_stats.s_statfs)) {
256    return (FALSE);
257  }
258  return (TRUE);
259}
260
261
262bool_t
263xdr_amq_mount_subtree(XDR *xdrs, amq_mount_tree *objp)
264{
265  am_node *mp = (am_node *) objp;
266
267  if (!xdr_amq_mount_tree_node(xdrs, objp)) {
268    return (FALSE);
269  }
270  if (!xdr_pointer(xdrs, (char **) &mp->am_osib, sizeof(amq_mount_tree), (XDRPROC_T_TYPE) xdr_amq_mount_subtree)) {
271    return (FALSE);
272  }
273  if (!xdr_pointer(xdrs, (char **) &mp->am_child, sizeof(amq_mount_tree), (XDRPROC_T_TYPE) xdr_amq_mount_subtree)) {
274    return (FALSE);
275  }
276  return (TRUE);
277}
278
279
280bool_t
281xdr_amq_mount_tree(XDR *xdrs, amq_mount_tree *objp)
282{
283  am_node *mp = (am_node *) objp;
284  am_node *mnil = 0;
285
286  if (!xdr_amq_mount_tree_node(xdrs, objp)) {
287    return (FALSE);
288  }
289  if (!xdr_pointer(xdrs, (char **) ((void *)&mnil), sizeof(amq_mount_tree), (XDRPROC_T_TYPE) xdr_amq_mount_subtree)) {
290    return (FALSE);
291  }
292  if (!xdr_pointer(xdrs, (char **) &mp->am_child, sizeof(amq_mount_tree), (XDRPROC_T_TYPE) xdr_amq_mount_subtree)) {
293    return (FALSE);
294  }
295  return (TRUE);
296}
297
298
299bool_t
300xdr_amq_mount_tree_p(XDR *xdrs, amq_mount_tree_p *objp)
301{
302  if (!xdr_pointer(xdrs, (char **) objp, sizeof(amq_mount_tree), (XDRPROC_T_TYPE) xdr_amq_mount_tree)) {
303    return (FALSE);
304  }
305  return (TRUE);
306}
307
308
309bool_t
310xdr_amq_mount_stats(XDR *xdrs, amq_mount_stats *objp)
311{
312  if (!xdr_int(xdrs, &objp->as_drops)) {
313    return (FALSE);
314  }
315  if (!xdr_int(xdrs, &objp->as_stale)) {
316    return (FALSE);
317  }
318  if (!xdr_int(xdrs, &objp->as_mok)) {
319    return (FALSE);
320  }
321  if (!xdr_int(xdrs, &objp->as_merr)) {
322    return (FALSE);
323  }
324  if (!xdr_int(xdrs, &objp->as_uerr)) {
325    return (FALSE);
326  }
327  return (TRUE);
328}
329
330
331
332bool_t
333xdr_amq_mount_tree_list(XDR *xdrs, amq_mount_tree_list *objp)
334{
335  if (!xdr_array(xdrs,
336		 (char **) &objp->amq_mount_tree_list_val,
337		 (u_int *) &objp->amq_mount_tree_list_len,
338		 ~0,
339		 sizeof(amq_mount_tree_p),
340		 (XDRPROC_T_TYPE) xdr_amq_mount_tree_p)) {
341    return (FALSE);
342  }
343  return (TRUE);
344}
345
346
347
348/*
349 * Compute length of list
350 */
351bool_t
352xdr_amq_mount_info_qelem(XDR *xdrs, qelem *qhead)
353{
354  mntfs *mf;
355  u_int len = 0;
356
357  for (mf = AM_LAST(mntfs, qhead); mf != HEAD(mntfs, qhead); mf = PREV(mntfs, mf)) {
358    if (!(mf->mf_ops->fs_flags & FS_AMQINFO))
359      continue;
360    len++;
361  }
362  xdr_u_int(xdrs, &len);
363
364  /*
365   * Send individual data items
366   */
367  for (mf = AM_LAST(mntfs, qhead); mf != HEAD(mntfs, qhead); mf = PREV(mntfs, mf)) {
368    int up;
369    if (!(mf->mf_ops->fs_flags & FS_AMQINFO))
370      continue;
371
372    if (!xdr_amq_string(xdrs, &mf->mf_ops->fs_type)) {
373      return (FALSE);
374    }
375    if (!xdr_amq_string(xdrs, &mf->mf_mount)) {
376      return (FALSE);
377    }
378    if (!xdr_amq_string(xdrs, &mf->mf_info)) {
379      return (FALSE);
380    }
381    if (!xdr_amq_string(xdrs, &mf->mf_server->fs_host)) {
382      return (FALSE);
383    }
384    if (!xdr_int(xdrs, &mf->mf_error)) {
385      return (FALSE);
386    }
387    if (!xdr_int(xdrs, &mf->mf_refc)) {
388      return (FALSE);
389    }
390    if (mf->mf_server->fs_flags & FSF_ERROR)
391      up = 0;
392    else
393      switch (mf->mf_server->fs_flags & (FSF_DOWN | FSF_VALID)) {
394      case FSF_DOWN | FSF_VALID:
395	up = 0;
396	break;
397      case FSF_VALID:
398	up = 1;
399	break;
400      default:
401	up = -1;
402	break;
403      }
404    if (!xdr_int(xdrs, &up)) {
405      return (FALSE);
406    }
407  }
408  return (TRUE);
409}
410
411
412bool_t
413xdr_pri_free(XDRPROC_T_TYPE xdr_args, caddr_t args_ptr)
414{
415  XDR xdr;
416
417  xdr.x_op = XDR_FREE;
418  return ((*xdr_args) (&xdr, (caddr_t *) args_ptr));
419}
420