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f852c398 1/* $Header$
2 *
3 * This generates the files necessary to load an nfs server.
4 *
5 * (c) Copyright 1988, 1990 by the Massachusetts Institute of Technology.
6 * For copying and distribution information, please see the file
7 * <mit-copyright.h>.
8 */
9
10#include <mit-copyright.h>
11#include <stdio.h>
12#include <moira.h>
13#include <moira_site.h>
14#include <sys/types.h>
15#include <sys/stat.h>
16#include <sys/time.h>
17EXEC SQL INCLUDE sqlca;
18
19
20#define min(x,y) ((x) < (y) ? (x) : (y))
21
22char *whoami = "nfs.gen";
23char *malloc(), *strsave();
24char nfs_dir[64];
25
26main(argc, argv)
27int argc;
28char **argv;
29{
30 char cmd[64];
31 struct stat sb;
32 int changed = 0;
33
34 if (argc > 2) {
35 fprintf(stderr, "usage: %s [outfile]\n", argv[0]);
36 exit(MR_ARGS);
37 }
38
39 initialize_sms_error_table();
40 sprintf(nfs_dir, "%s/nfs", DCM_DIR);
41
42#ifsql INGRES
43 EXEC SQL CONNECT sms;
44#endsql
45#ifsql INFORMIX
46 EXEC SQL DATABASE sms;
47#endsql
48
49 changed = do_nfs();
50
51#ifsql INGRES
52 EXEC SQL DISCONNECT;
53#endsql
54#ifsql INFORMIX
55 EXEC SQL CLOSE DATABASE;
56#endsql
57
58 if (!changed) {
59 fprintf(stderr, "No files updated.\n");
60 if (argc == 2 && stat(argv[1], &sb) == 0)
61 exit(MR_NO_CHANGE);
62 }
63
64 if (argc == 2) {
65 sprintf(cmd, "cd %s; cp %s/nfs/* .; tar cf %s .",
66 nfs_dir, SMS_DIR, argv[1]);
67 if (system(cmd))
68 exit(MR_TAR_FAIL);
69 }
70
71 exit(MR_SUCCESS);
72}
73
74
75/* Generate the files. Returns zero if nothing changed, non-zero otherwise. */
76
77int do_nfs()
78{
79 EXEC SQL BEGIN DECLARE SECTION;
80 char machname[33], listname[33];
81 EXEC SQL END DECLARE SECTION;
82 struct save_queue *machs, *lists;
83 int changed;
84
85 machs = sq_create();
86 lists = sq_create();
87
88 EXEC SQL WHENEVER SQLERROR GOTO sqlerr;
89 EXEC SQL DECLARE s_cursor CURSOR FOR
90 SELECT m.name, s.value3
91 FROM machine m, serverhosts s
92 WHERE m.mach_id = s.mach_id AND s.service = "NFS" AND s.enable != 0;
93 EXEC SQL OPEN s_cursor;
94 while (1) {
95 EXEC SQL FETCH s_cursor INTO :machname, :listname;
96 if (sqlca.sqlcode != 0) break;
97 sq_save_unique_string(machs, strsave(strtrim(machname)));
98 sq_save_unique_string(lists, strsave(strtrim(listname)));
99 }
100 EXEC SQL CLOSE s_cursor;
101
102 changed = do_lists(lists);
103 changed += do_machs(machs);
104 return(changed);
105 sqlerr:
106 com_err(whoami, MR_INGRES_ERR, " code %d\n", sqlca.sqlcode);
107 critical_alert("DCM", "NFS build encountered DATABASE ERROR %d",
108 sqlca.sqlcode);
109 exit(MR_INGRES_ERR);
110}
111
112
113/* Make all of the credentials lists that will be needed. Returns 0 if
114 * no files were actually changed */
115
116int do_lists(lists)
117struct save_queue *lists;
118{
119 char file[64], *u;
120 struct hash *users, *do_everyone();
121 struct stat sb;
122 FILE *fd;
123 EXEC SQL BEGIN DECLARE SECTION;
124 char *listname, *lsname, lname[33], uname[9];
125 int uid, id, flag1, flag2, flag3, flag4;
126 EXEC SQL END DECLARE SECTION;
127
128 sprintf(file, "%s/list-", nfs_dir);
129 if (stat(file, &sb) == 0) {
130 if ((ModDiff (&flag1, "users", sb.st_mtime)) ||
131 (ModDiff (&flag2, "list", sb.st_mtime)) ||
132 (ModDiff (&flag3, "imembers", sb.st_mtime)) ||
133 (ModDiff (&flag4, "serverhosts", sb.st_mtime))) exit (MR_DATE);
134 if (flag1 < 0 && flag2 < 0 && flag3 < 0 && flag4 < 0) {
135 fprintf(stderr, "The lists do not need to be rebuilt.\n");
136 return(0);
137 }
138 }
139
140 /* get locks */
141 EXEC SQL SELECT modtime INTO :lname FROM list WHERE list_id = 0;
142 EXEC SQL SELECT modtime INTO :lname FROM users WHERE users_id = 0;
143
144 /* build the list of everyone, and store it in a file whose name
145 * corresponds to the empty list.
146 */
147 users = do_everyone();
148
149 fprintf(stderr, "Building specific lists\n");
150 /* now do each of the lists used by an NFS server */
151
152 while (sq_get_data(lists, &listname)) {
153 if (strlen(listname) == 0)
154 continue;
155 sprintf(file, "%s/list-%s", nfs_dir, listname);
156 fd = fopen(file, "w");
157 if (!fd) {
158 fprintf(stderr, "cannot open %s for output\n", file);
159 exit(MR_OCONFIG);
160 }
161
162 EXEC SQL DECLARE m_cursor CURSOR FOR
163 SELECT m.member_id
164 FROM imembers m, list l
165 WHERE m.list_id=l.list_id AND l.name = :listname AND
166 m.member_type="USER";
167 EXEC SQL OPEN m_cursor;
168 while (1) {
169 EXEC SQL FETCH m_cursor INTO :id;
170 if (sqlca.sqlcode != 0) break;
171 if (u = hash_lookup(users, id))
172 fprintf(fd, "%s\n", u);
173 }
174 EXEC SQL CLOSE m_cursor;
175 if (fclose(fd)) {
176 fprintf(stderr, "error closing %s\n", file);
177 exit(MR_CCONFIG);
178 }
179 }
180/* don't free here either
181 sq_destroy(lists);
182 */
183 return(1);
184 sqlerr:
185 com_err(whoami, MR_INGRES_ERR, " code %d\n", sqlca.sqlcode);
186 critical_alert("DCM", "NFS build encountered DATABASE ERROR %d",
187 sqlca.sqlcode);
188 exit(MR_INGRES_ERR);
189}
190
191
192/* Build the list of everybody. */
193struct grp {
194 struct grp *next;
195 char *lid;
196};
197struct user {
198 char name[9];
199 int uid;
200 struct grp *lists;
201};
202
203
204struct hash *do_everyone()
205{
206 char buf[BUFSIZ], *l;
207 struct hash *groups, *users;
208 struct user *u;
209 struct grp *g;
210 struct bucket *b, **p;
211 EXEC SQL BEGIN DECLARE SECTION;
212 char name[33];
213 int gid, id, lid, maxid, uid;
214 EXEC SQL END DECLARE SECTION;
215 FILE *fd;
216 int i;
217 struct save_queue *sq;
218
219 fprintf(stderr, "Building the list of everybody\n");
220 sprintf(buf, "%s/list-", nfs_dir);
221 fd = fopen(buf, "w");
222 if (!fd) {
223 fprintf(stderr, "cannot open %s for output\n", buf);
224 exit(MR_OCONFIG);
225 }
226
227 /* make space for group list */
228 groups = create_hash(15000);
229
230 /* retrieve simple groups */
231 EXEC SQL DECLARE l_cursor CURSOR FOR
232 SELECT gid, list_id
233 FROM list
234 WHERE grp <> 0 AND active != 0;
235 EXEC SQL OPEN l_cursor;
236 while (1) {
237 EXEC SQL FETCH l_cursor INTO :gid, :lid;
238 if (sqlca.sqlcode != 0) break;
239 sprintf(buf, ":%d", gid);
240 hash_store(groups, lid, strsave(buf));
241 }
242 EXEC SQL CLOSE l_cursor;
243
244 /* now do grplists */
245 users = create_hash(10000);
246 EXEC SQL DECLARE u_cursor CURSOR FOR
247 SELECT users_id, login, uid
248 FROM users
249 WHERE status = 1;
250 EXEC SQL OPEN u_cursor;
251 while (1) {
252 EXEC SQL FETCH u_cursor INTO :id, :name, :uid;
253 if (sqlca.sqlcode != 0) break;
254 u = (struct user *) malloc(sizeof(struct user));
255 strcpy(u->name, strtrim(name));
256 u->uid = uid;
257 u->lists = NULL;
258 hash_store(users, id, u);
259 }
260 EXEC SQL CLOSE u_cursor;
261
262 EXEC SQL DECLARE m_cursor2 CURSOR FOR
263 SELECT list_id, member_id
264 FROM imembers
265 WHERE member_type = "USER";
266 EXEC SQL OPEN m_cursor2;
267 while (1) {
268 EXEC SQL FETCH m_cursor2 INTO :lid, :id;
269 if (sqlca.sqlcode != 0) break;
270 if ((u = (struct user *) hash_lookup(users, id)) &&
271 ((l = hash_lookup(groups, lid)) != NULL)) {
272 g = (struct grp *) malloc(sizeof(struct grp));
273 g->next = u->lists;
274 u->lists = g;
275 g->lid = l;
276 }
277 }
278 EXEC SQL CLOSE m_cursor2;
279
280 for (p = &(users->data[users->size - 1]); p >= users->data; p--) {
281 for (b = *p; b; b = b->next) {
282 u = (struct user *)b->data;
283 sprintf(buf, "%s:%d", u->name, u->uid);
284 for (g = u->lists; g; g = g->next)
285 strcat(buf, g->lid);
286 b->data = strsave(buf);
287 fprintf(fd, "%s\n", buf);
288 }
289 }
290
291 fclose(fd);
292 free(groups);
293 return(users);
294 sqlerr:
295 com_err(whoami, MR_INGRES_ERR, " code %d\n", sqlca.sqlcode);
296 critical_alert("DCM", "NFS build encountered DATABASE ERROR %d",
297 sqlca.sqlcode);
298 exit(MR_INGRES_ERR);
299}
300
301
302/* Now do each of the servers, linking the credentials list file and
303 * compiling the quota and dirs files.
304 */
305
306int do_machs(machs)
307struct save_queue *machs;
308{
309 EXEC SQL BEGIN DECLARE SECTION;
310 char *machname, listname[33], dev[33], dir[81], fstype[9];
311 int uid, quota, id, gid, flag1, flag2, flag3, flag4;
312 EXEC SQL END DECLARE SECTION;
313 char file[64], f1[64], f2[64], *cp, *index();
314 int prevuid, quotasum, olddev, oldmach;
315 FILE *fd;
316 struct hash *machines;
317
318 fprintf(stderr, "Building machine files\n");
319
320 /* acquire locks on machines & filesystems */
321 EXEC SQL SELECT modtime INTO :listname FROM users WHERE users_id = 0;
322 EXEC SQL SELECT modtime INTO :listname FROM machine WHERE users_id = 0;
323 EXEC SQL SELECT modtime INTO :listname FROM filesys WHERE filsys_id = 0;
324
325 machines = create_hash(100);
326 while (sq_get_data(machs, &machname)) {
327 EXEC SQL SELECT s.value3, m.mach_id
328 INTO :listname, :id
329 FROM serverhosts s, machine m
330 WHERE s.mach_id = m.mach_id AND m.name = :machname;
331 strtrim(machname);
332 sprintf(f1, "%s/list-%s", nfs_dir, strtrim(listname));
333 sprintf(f2, "%s/%s.cred", nfs_dir, machname);
334 unlink(f2); /* ignore errors on this unlink */
335 if (link(f1, f2)) {
336 fprintf(stderr, "Cannot link %s to %s\n", f1, f2);
337 exit(MR_OCONFIG);
338 }
339 hash_store(machines, id, machname);
340 }
341
342
343 olddev = oldmach = -1;
344 fd = stdin;
345
346 EXEC SQL DECLARE q_cursor CURSOR FOR
347 SELECT DISTINCT q.quota, u.uid, q.phys_id, n.device, n.mach_id
348 FROM quota q, users u, nfsphys n
349 WHERE u.users_id = q.entity_id AND n.nfsphys_id = q.phys_id AND
350 q.phys_id != 0 AND n.status < 16 AND q.type = "USER"
351 ORDER BY mach_id, phys_id, uid;
352 EXEC SQL OPEN q_cursor;
353 while (1) {
354 EXEC SQL FETCH q_cursor INTO :quota, :uid, :flag1, :dev, :flag2;
355 if (sqlca.sqlcode != 0) break;
356 if (flag1 != olddev || flag2 != oldmach) {
357 fclose(fd);
358 olddev = flag1;
359 oldmach = flag2;
360 while (cp = index(dev, '/')) *cp = '@';
361 sprintf(file, "%s/%s.%s.quotas", nfs_dir,
362 hash_lookup(machines, flag2), strtrim(dev));
363 fd = fopen(file, "w");
364 if (!fd) {
365 fprintf(stderr, "cannot open %s for output\n", file);
366 exit(MR_OCONFIG);
367 }
368 prevuid = -1;
369 quotasum = 0;
370 }
371 if (uid != prevuid) {
372 if (quotasum)
373 fprintf(fd, "%d %d\n", prevuid, quotasum);
374 prevuid = uid;
375 quotasum = quota;
376 } else {
377 quotasum += quota;
378 }
379 }
380 EXEC SQL CLOSE q_cursor;
381 if (quotasum)
382 fprintf(fd, "%d %d\n", prevuid, quotasum);
383 if (fd != stdin && fclose(fd)) {
384 fprintf(stderr, "error closing %s", file);
385 exit(MR_CCONFIG);
386 }
387
388 olddev = oldmach = -1;
389 fd = stdin;
390 EXEC SQL DECLARE q_cursor2 CURSOR FOR
391 SELECT DISTINCT q.quota, l.gid, q.phys_id, n.device, n.mach_id, n.status
392 FROM quota q, list l, nfsphys n
393 WHERE l.list_id = q.entity_id AND n.nfsphys_id = q.phys_id AND
394 q.phys_id != 0 AND n.status > 15 AND q.type = "GROUP"
395 ORDER BY mach_id, phys_id, gid;
396 EXEC SQL OPEN q_cursor2;
397 while (1) {
398 EXEC SQL FETCH q_cursor2 INTO :quota, :gid, :flag1, :dev,
399 :flag2, :flag3;
400 if (sqlca.sqlcode != 0) break;
401 if (flag1 != olddev || flag2 != oldmach) {
402 fclose(fd);
403 olddev = flag1;
404 oldmach = flag2;
405 while (cp = index(dev, '/')) *cp = '@';
406 sprintf(file, "%s/%s.%s.quotas", nfs_dir,
407 hash_lookup(machines, flag2), strtrim(dev));
408 fd = fopen(file, "w");
409 if (!fd) {
410 fprintf(stderr, "cannot open %s for output\n", file);
411 exit(MR_OCONFIG);
412 }
413 prevuid = -1;
414 quotasum = 0;
415 }
416 if (gid != prevuid) {
417 if (quotasum)
418 fprintf(fd, "%d %d\n", prevuid, quotasum);
419 prevuid = gid;
420 quotasum = quota;
421 } else {
422 quotasum += quota;
423 }
424 }
425 EXEC SQL CLOSE q_cursor2;
426 if (quotasum)
427 fprintf(fd, "%d %d\n", prevuid, quotasum);
428 if (fd != stdin && fclose(fd)) {
429 fprintf(stderr, "error closing %s", file);
430 exit(MR_CCONFIG);
431 }
432
433 olddev = oldmach = -1;
434
435 EXEC SQL DECLARE q_cursor3 CURSOR FOR
436 SELECT DISTINCT f.name, f.lockertype, u.uid, l.gid, f.phys_id,
437 f.mach_id, n.device
438 FROM users u, list l, nfsphys n, filesys f
439 WHERE u.users_id = f.owner AND
440 l.list_id = f.owners AND
441 f.createflg != 0 AND f.phys_id != 0 AND
442 f.type = "NFS" AND
443 f.phys_id = n.nfsphys_id
444 ORDER BY mach_id, phys_id;
445 EXEC SQL OPEN q_cursor3;
446 while (1) {
447 EXEC SQL FETCH q_cursor3 INTO :dir, :fstype, :uid, :gid, :flag1,
448 :flag2, :dev;
449 if (sqlca.sqlcode != 0) break;
450 if (flag1 != olddev || flag2 != oldmach) {
451 fclose(fd);
452 olddev = flag1;
453 oldmach = flag2;
454 while (cp = index(dev, '/')) *cp = '@';
455 sprintf(file, "%s/%s.%s.dirs", nfs_dir,
456 hash_lookup(machines, flag2), strtrim(dev));
457 fd = fopen(file, "w");
458 if (!fd) {
459 fprintf(stderr, "cannot open %s for output\n", file);
460 exit(MR_OCONFIG);
461 }
462 }
463 fprintf(fd, "%s %d %d %s\n", strtrim(dir), uid, gid, strtrim(fstype));
464 }
465 EXEC SQL CLOSE q_cursor3;
466 if (fclose(fd)) {
467 fprintf(stderr, "error closing %s", file);
468 exit(MR_CCONFIG);
469 }
470 return(1);
471 sqlerr:
472 com_err(whoami, MR_INGRES_ERR, " code %d\n", sqlca.sqlcode);
473 critical_alert("DCM", "NFS build encountered DATABASE ERROR %d",
474 sqlca.sqlcode);
475 exit(MR_INGRES_ERR);
476}
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