dbdefs.php3.in 48.3 KB
Newer Older
1
2
3
4
<?php
#
# Database Constants
#
5
6
require("dbcheck.php3");

7
$TBDBNAME       = "@TBDBNAME@";
8
$TBOPSPID	= "emulab-ops";
9

10
11
# All these constants need to go at some point, replaced by data from
# the regex table. 
12
13
$TBDB_UIDLEN    = 8;
$TBDB_PIDLEN    = 12;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
14
15
$TBDB_GIDLEN	= 12;
$TBDB_UNIXGLEN	= 16;
16
$TBDB_NODEIDLEN = 10;
17
18
$TBDB_PHONELEN  = 32;
$TBDB_USRNAMELEN= 64;
19
$TBDB_EMAILLEN  = 64;
20
21
22
23
24
25
26
27
28

#
# Current policy is to prefix the EID with the PID. Make sure it is not
# too long for the database. PID is 12, and the max is 32, so the user
# cannot have provided an EID more than 19, since other parts of the system
# may concatenate them together with a hyphen.
#
$TBDB_EIDLEN    = 19;

29
30
$TBDB_OSID_OSIDLEN         = 35;
$TBDB_OSID_OSNAMELEN       = 20;
31
$TBDB_OSID_VERSLEN         = 12;
32
33
$TBDB_IMAGEID_IMAGEIDLEN   = 45;
$TBDB_IMAGEID_IMAGENAMELEN = 30;
34

35
36
37
#
# User status field.
#
38
39
40
41
42
define("TBDB_USERSTATUS_ACTIVE",	"active");
define("TBDB_USERSTATUS_NEWUSER",	"newuser");
define("TBDB_USERSTATUS_UNAPPROVED",	"unapproved");
define("TBDB_USERSTATUS_UNVERIFIED",	"unverified");
define("TBDB_USERSTATUS_FROZEN",	"frozen");
43

Leigh B. Stoller's avatar
Leigh B. Stoller committed
44
45
46
47
48
49
50
51
52
53
54
#
# Trust. Define the trust level as an increasing value. Then define a
# function to return whether the given trust is high enough.
#
$TBDB_TRUST_NONE		= 0;
$TBDB_TRUST_USER		= 1;
$TBDB_TRUST_LOCALROOT		= 2;
$TBDB_TRUST_GROUPROOT		= 3;
$TBDB_TRUST_PROJROOT		= 4;
$TBDB_TRUST_ADMIN		= 5;

55
56
57
58
59
60
61
62
63
#
# Text strings in the DB for above.
# 
define("TBDB_TRUSTSTRING_NONE",		"none");
define("TBDB_TRUSTSTRING_USER",		"user");
define("TBDB_TRUSTSTRING_LOCALROOT",	"local_root");
define("TBDB_TRUSTSTRING_GROUPROOT",	"group_root");
define("TBDB_TRUSTSTRING_PROJROOT",	"project_root");

Leigh B. Stoller's avatar
Leigh B. Stoller committed
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
#
# These are the permission types. Different operations for the varying
# types of things we need to control access to.
#
# Things you can do to a node.
$TB_NODEACCESS_READINFO		= 1;
$TB_NODEACCESS_MODIFYINFO	= 2;
$TB_NODEACCESS_LOADIMAGE	= 3;
$TB_NODEACCESS_REBOOT		= 4;
$TB_NODEACCESS_POWERCYCLE	= 5;
$TB_NODEACCESS_MIN		= $TB_NODEACCESS_READINFO;
$TB_NODEACCESS_MAX		= $TB_NODEACCESS_POWERCYCLE;

# User Info (modinfo web page, etc).
$TB_USERINFO_READINFO		= 1;
$TB_USERINFO_MODIFYINFO		= 2;
$TB_USERINFO_MIN		= $TB_USERINFO_READINFO;
$TB_USERINFO_MAX		= $TB_USERINFO_MODIFYINFO;

# Experiments (also batch experiments).
$TB_EXPT_READINFO		= 1;
$TB_EXPT_MODIFY			= 2;	# Allocate/dealloc nodes
$TB_EXPT_DESTROY		= 3;
87
$TB_EXPT_UPDATE			= 4;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
88
$TB_EXPT_MIN			= $TB_EXPT_READINFO;
89
$TB_EXPT_MAX			= $TB_EXPT_UPDATE;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
90
91
92
93
94

# Projects.
$TB_PROJECT_READINFO		= 1;
$TB_PROJECT_MAKEGROUP		= 2;
$TB_PROJECT_EDITGROUP		= 3;
Chad Barb's avatar
   
Chad Barb committed
95
$TB_PROJECT_GROUPGRABUSERS      = 4;
Chad Barb's avatar
   
Chad Barb committed
96
97
98
99
100
101
102
103
104
105
$TB_PROJECT_BESTOWGROUPROOT     = 5;
$TB_PROJECT_DELGROUP		= 6;
$TB_PROJECT_LEADGROUP		= 7;
$TB_PROJECT_ADDUSER		= 8;
$TB_PROJECT_DELUSER             = 9;
$TB_PROJECT_MAKEOSID		= 10;
$TB_PROJECT_DELOSID		= 11;
$TB_PROJECT_MAKEIMAGEID		= 12;
$TB_PROJECT_DELIMAGEID		= 13;
$TB_PROJECT_CREATEEXPT		= 14;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
$TB_PROJECT_MIN			= $TB_PROJECT_READINFO;
$TB_PROJECT_MAX			= $TB_PROJECT_CREATEEXPT;

# OSIDs 
$TB_OSID_READINFO		= 1;
$TB_OSID_MODIFYINFO		= 2;
$TB_OSID_DESTROY		= 3;
$TB_OSID_MIN			= $TB_OSID_READINFO;
$TB_OSID_MAX			= $TB_OSID_DESTROY;

# ImageIDs
$TB_IMAGEID_READINFO		= 1;
$TB_IMAGEID_MODIFYINFO		= 2;
$TB_IMAGEID_ACCESS		= 3;
$TB_IMAGEID_DESTROY		= 4;
$TB_IMAGEID_MIN			= $TB_IMAGEID_READINFO;
$TB_IMAGEID_MAX			= $TB_IMAGEID_DESTROY;

124
# Experiment states (that matter to us).
125
126
$TB_EXPTSTATE_NEW		= "new"; 
$TB_EXPTSTATE_PRERUN		= "prerunning"; 
127
$TB_EXPTSTATE_SWAPPING		= "swapping";
128
$TB_EXPTSTATE_SWAPPED		= "swapped";
129
$TB_EXPTSTATE_ACTIVATING	= "activating";
130
$TB_EXPTSTATE_ACTIVE		= "active";
131
$TB_EXPTSTATE_QUEUED		= "queued";
132

Leigh B. Stoller's avatar
Leigh B. Stoller committed
133
134
135
136
137
# Interfaces roles.
define("TBDB_IFACEROLE_CONTROL",	"ctrl");
define("TBDB_IFACEROLE_EXPERIMENT",	"expt");
define("TBDB_IFACEROLE_JAIL",		"jail");
define("TBDB_IFACEROLE_FAKE",		"fake");
138
define("TBDB_IFACEROLE_GW",		"gw");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
139
140
define("TBDB_IFACEROLE_OTHER",		"other");

141
142
143
144
# Node states that the web page cares about.
define("TBDB_NODESTATE_ISUP",		"ISUP");
define("TBDB_NODESTATE_PXEWAIT",	"PXEWAIT");

145
146
147
148
149
150
# User Interface types
define("TBDB_USER_INTERFACE_EMULAB",	"emulab");
define("TBDB_USER_INTERFACE_PLAB",	"plab");
$TBDB_USER_INTERFACE_LIST = array(TBDB_USER_INTERFACE_EMULAB,
				  TBDB_USER_INTERFACE_PLAB);

Leigh B. Stoller's avatar
Leigh B. Stoller committed
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
#
# Convert a trust string to the above numeric values.
#
function TBTrustConvert($trust_string)
{
    global $TBDB_TRUST_NONE;
    global $TBDB_TRUST_USER;
    global $TBDB_TRUST_LOCALROOT;
    global $TBDB_TRUST_GROUPROOT;
    global $TBDB_TRUST_PROJROOT;
    global $TBDB_TRUST_ADMIN;
    $trust_value = 0;

    #
    # Convert string to value. Perhaps the DB should have done it this way?
    # 
    if (strcmp($trust_string, "none") == 0) {
	    $trust_value = $TBDB_TRUST_NONE;
    }
    elseif (strcmp($trust_string, "user") == 0) {
	    $trust_value = $TBDB_TRUST_USER;
    }
    elseif (strcmp($trust_string, "local_root") == 0) {
	    $trust_value = $TBDB_TRUST_LOCALROOT;
    }
    elseif (strcmp($trust_string, "group_root") == 0) {
	    $trust_value = $TBDB_TRUST_GROUPROOT;
    }
    elseif (strcmp($trust_string, "project_root") == 0) {
	    $trust_value = $TBDB_TRUST_PROJROOT;
    }
    elseif (strcmp($trust_string, "admin") == 0) {
	    $trust_value = $TBDB_TRUST_ADMIN;
    }
    else {
	    TBERROR("Invalid trust value $trust_string!", 1);
    }

    return $trust_value;
}

#
# Return true if the given trust string is >= to the minimum required.
# The trust value can be either numeric or a string; if a string its
# first converted to the numeric equiv.
#
function TBMinTrust($trust_value, $minimum)
{
    global $TBDB_TRUST_NONE;
    global $TBDB_TRUST_ADMIN;

    if ($minimum < $TBDB_TRUST_NONE || $minimum > $TBDB_TRUST_ADMIN) {
	    TBERROR("Invalid minimum trust $minimum!", 1);
    }

    #
    # Sleazy?
    #
    if (gettype($trust_value) == "string") {
	$trust_value = TBTrustConvert($trust_value);
    }
    
    return $trust_value >= $minimum;
}

#
# Determine the trust level for a uid/pid/gid. That is, each uid will have
# a different trust level depending on the project/group in question.
# Return that trust level as one of the numeric values above. 
# 
function TBGrpTrust($uid, $pid, $gid)
{
    global $TBDB_TRUST_NONE;

    #
    # No group, then use the default group.
    #
    if (! $gid) {
	$gid = $pid;
    }

    $query_result =
	DBQueryFatal("select trust from group_membership ".
		     "where uid='$uid' and pid='$pid' and gid='$gid'");

    #
    # No membership is the same as no trust. True? Maybe an error instead?
    # 
    if (mysql_num_rows($query_result) == 0) {
	return $TBDB_TRUST_NONE;
    }
    $row = mysql_fetch_array($query_result);
    $trust_string = $row[trust];

    return TBTrustConvert($trust_string);
}

#
# Determine the project trust level for a uid/pid. This is the trust level
# for the default group in the project.
# 
function TBProjTrust($uid, $pid)
{
    return TBGrpTrust($uid, $pid, $pid);
}

#
# Project permission checks. The group id (gid) can be zero, in which case
# the pid is used (ie: a default group check is made).
#
# Usage: TBProjAccessCheck($uid, $pid, $gid, $access_type)
#	 returns 0 if not allowed.
#        returns 1 if allowed.
# 
function TBProjAccessCheck($uid, $pid, $gid, $access_type)
{
    global $TB_PROJECT_READINFO;
    global $TB_PROJECT_MAKEGROUP;
    global $TB_PROJECT_EDITGROUP;
Chad Barb's avatar
   
Chad Barb committed
270
    global $TB_PROJECT_GROUPGRABUSERS;
Chad Barb's avatar
   
Chad Barb committed
271
    global $TB_PROJECT_BESTOWGROUPROOT;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
    global $TB_PROJECT_DELGROUP;
    global $TB_PROJECT_LEADGROUP;
    global $TB_PROJECT_ADDUSER;
    global $TB_PROJECT_DELUSER;
    global $TB_PROJECT_MAKEOSID;
    global $TB_PROJECT_DELOSID;
    global $TB_PROJECT_MAKEIMAGEID;
    global $TB_PROJECT_DELIMAGEID;
    global $TB_PROJECT_CREATEEXPT;
    global $TB_PROJECT_MIN;
    global $TB_PROJECT_MAX;
    global $TBDB_TRUST_USER;
    global $TBDB_TRUST_LOCALROOT;
    global $TBDB_TRUST_GROUPROOT;
    global $TBDB_TRUST_PROJROOT;
    $mintrust;

    if ($access_type < $TB_PROJECT_MIN ||
	$access_type > $TB_PROJECT_MAX) {
	TBERROR("Invalid access type: $access_type!", 1);
    }

    #
    # Admins do whatever they want!
    # 
    if (ISADMIN($uid)) {
	return 1;
    }

    #
    # No group, then use the default group.
    #
    if (! $gid) {
	$gid = $pid;
    }

    if ($access_type == $TB_PROJECT_READINFO) {
	$mintrust = $TBDB_TRUST_USER;
    }
    elseif ($access_type == $TB_PROJECT_MAKEGROUP ||
	    $access_type == $TB_PROJECT_DELGROUP) {
313
	$mintrust = $TBDB_TRUST_GROUPROOT;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
314
315
316
    }
    elseif ($access_type == $TB_PROJECT_LEADGROUP) {
	#
317
	# Allow mere user (in default group) to lead a subgroup.
Leigh B. Stoller's avatar
Leigh B. Stoller committed
318
	# 
319
	$mintrust = $TBDB_TRUST_USER;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
320
321
322
323
324
325
    }
    elseif ($access_type == $TB_PROJECT_MAKEOSID ||
	    $access_type == $TB_PROJECT_MAKEIMAGEID ||
	    $access_type == $TB_PROJECT_CREATEEXPT) {
	$mintrust = $TBDB_TRUST_LOCALROOT;
    }
Chad Barb's avatar
   
Chad Barb committed
326
327
    elseif ($access_type == $TB_PROJECT_ADDUSER ||
	    $access_type == $TB_PROJECT_EDITGROUP) {
328
	#
Chad Barb's avatar
   
Chad Barb committed
329
330
	# If user is project_root or group_root in default group, 
	# allow them to add/edit/remove users in any group.
331
	#
Chad Barb's avatar
   
Chad Barb committed
332
333
334
335
336
337
338
	if (TBMinTrust(TBGrpTrust($uid, $pid, $pid), $TBDB_TRUST_GROUPROOT)) {
	    return 1;
	}
	#
	# Otherwise, editing a group requires group_root 
	# in that group.
	#	
339
340
	$mintrust = $TBDB_TRUST_GROUPROOT;
    }
Chad Barb's avatar
   
Chad Barb committed
341
342
343
344
345
346
347
    elseif ($access_type == $TB_PROJECT_BESTOWGROUPROOT) {
	#
	# If user is project_root, 
	# allow them to bestow group_root in any group.
	#
	if (TBMinTrust(TBGrpTrust($uid, $pid, $pid), $TBDB_TRUST_PROJROOT)) {
	    return 1;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
348
	}
Chad Barb's avatar
   
Chad Barb committed
349
350
351
352

	if (strcmp($gid, $pid) == 0)  {
	    #
	    # Only project_root can bestow group_root in default group, and
353
	    # we already established that they are not project_root, so fail.
Chad Barb's avatar
   
Chad Barb committed
354
355
	    #
	    return 0;
356
	}
Leigh B. Stoller's avatar
Leigh B. Stoller committed
357
	else {
Chad Barb's avatar
   
Chad Barb committed
358
359
360
361
	    #
	    # Non-default group.
	    # group_root in default group may bestow group_root.
	    #
362
363
	    if (TBMinTrust(TBGrpTrust($uid, $pid, $pid),
			   $TBDB_TRUST_GROUPROOT)) {
Chad Barb's avatar
   
Chad Barb committed
364
365
366
367
368
369
		return 1;
	    }

	    #
	    # group_root in the group in question may also bestow group_root.
	    #
Leigh B. Stoller's avatar
Leigh B. Stoller committed
370
371
372
	    $mintrust = $TBDB_TRUST_GROUPROOT;
	}
    }
Chad Barb's avatar
   
Chad Barb committed
373
    elseif ($access_type == $TB_PROJECT_GROUPGRABUSERS) {
Chad Barb's avatar
   
Chad Barb committed
374
375
376
377
378
379
	#
	# Only project_root or group_root in default group
	# may grab (involuntarily add) users into groups.
	#
	$gid = $pid;
	$mintrust = $TBDB_TRUST_GROUPROOT;
Chad Barb's avatar
   
Chad Barb committed
380
    }
381
382
383
    elseif ($access_type == $TB_PROJECT_DELUSER) {
	$mintrust = $TBDB_TRUST_PROJROOT;
    }
Leigh B. Stoller's avatar
Leigh B. Stoller committed
384
385
386
387
388
389
390
    else {
	TBERROR("Unexpected access type: $access_type!", 1);
    }

    return TBMinTrust(TBGrpTrust($uid, $pid, $gid), $mintrust);
}

Chad Barb's avatar
   
Chad Barb committed
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488

#
# Checks proposed Group trust change for consistency.
#
# Usage: TBCheckGroupTrustConsistency($user, $pid, $gid, $newtrust, $fail) 
#        returns 1 if proposed change is valid
#        returns 0 if proposed change is invalid and $fail == 0
#        does not return if proposed change is invalid and $fail == 1.
#

function TBCheckGroupTrustConsistency($user, $pid, $gid, $newtrust, $fail)
{
    global $TBDB_TRUST_USER;

    # 
    # set $newtrustisroot to 1 if attempting to set a rootful trust,
    # 0 otherwise.
    #
    $newtrustisroot = TBTrustConvert($newtrust) > $TBDB_TRUST_USER ? 1 : 0;

    #
    # If changing subgroup trust level, then compare levels.
    # A user may not have root privs in the project and user privs
    # in the subgroup; it makes no sense to do that and can violate trust.
    #
    if (strcmp($pid, $gid)) {
	#
	# Setting non-default "sub"group.
	# Verify that if user has root in project,
	# we are setting a rootful trust for him in 
	# the subgroup as well.
	#
	$projtrustisroot = TBProjTrust($user, $pid) > $TBDB_TRUST_USER ? 1 : 0;

	if ($projtrustisroot > $newtrustisroot) {
	    if (!$fail) { return 0; }
	    TBERROR("User $user may not have a root trust level in ".
		      "the default group of $pid, ".
		      "yet be non-root in subgroup $gid!", 1);
	}
    }
    else {
	#
	# Setting default group.
	# Don't verify anything (yet.)
	#
	$projtrustisroot = $newtrustisroot;
    }

    #
    # Get all the subgroups not equal to the subgroup being changed.
    # 
    $query_result =
	DBQueryFatal("select trust,gid from group_membership ".
		     "where uid='$user' and pid='$pid' and trust!='none' ".
		     " and gid!=pid and gid!='$gid'");

    while ($row = mysql_fetch_array($query_result)) {
	$grptrust = $row[0];
	$ogid     = $row[1];
	
	# 
	# Get what the user's trust level is in the 
	# current subgroup we're looking at.
	#
	$grptrustisroot = 
	    TBTrustConvert( $grptrust ) > $TBDB_TRUST_USER ? 1 : 0;

	#
	# If user's trust level is higher in the default group than in the
	# subgroup we are looking at, this is wrong.
	#
	if ($projtrustisroot > $grptrustisroot) {
	    if (!$fail) { return 0; }
	    TBERROR("User $user may not have a root trust level in ".
		      "the default group of $pid, ".
		      "yet be non-root in subgroup $ogid!", 1);
	}

	if (strcmp($pid, $gid)) {
            #
	    # Iff we're modifying a subgroup, 
	    # Make sure that the trust we're setting is as
	    # rootful as the trust we already have set in
	    # every other subgroup.
	    # 
	    if ($newtrustisroot != $grptrustisroot) { 
		if (!$fail) { return 0; }
		TBERROR("User $user may not mix root and ".
			  "non-root trust levels in ".
			  "different subgroups of $pid!", 1);
	    }
	}
    }
    return 1;
}


489
# Usage: TBExptGroup($pid, $eid, &$gid)
490
#	 returns 0 if expt does not exist.
491
492
493
#        returns 1 if expt exists.
function TBExptGroup($pid, $eid, &$gid)
{
494
495
496
497
498
499
500
501
502
    $query_result =
	DBQueryFatal("SELECT gid FROM experiments WHERE ".
		     "eid='$eid' and pid='$pid'");
    if (mysql_num_rows($query_result) == 0) {
	return 0;
    }
    $row  = mysql_fetch_array($query_result);
    $gid  = $row[gid];
    return 1;
503
504
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
505
506
507
508
509
510
511
512
513
514
515
516
#
# Experiment permission checks.
#
# Usage: TBExptAccessCheck($uid, $pid, $eid, $access_type)
#	 returns 0 if not allowed.
#        returns 1 if allowed.
# 
function TBExptAccessCheck($uid, $pid, $eid, $access_type)
{
    global $TB_EXPT_READINFO;
    global $TB_EXPT_MODIFY;
    global $TB_EXPT_DESTROY;
517
    global $TB_EXPT_UPDATE;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
    global $TB_EXPT_MIN;
    global $TB_EXPT_MAX;
    global $TBDB_TRUST_USER;
    global $TBDB_TRUST_LOCALROOT;
    global $TBDB_TRUST_GROUPROOT;
    global $TBDB_TRUST_PROJROOT;
    $mintrust;

    if ($access_type < $TB_EXPT_MIN ||
	$access_type > $TB_EXPT_MAX) {
	TBERROR("Invalid access type: $access_type!", 1);
    }

    #
    # Admins do whatever they want!
    # 
    if (ISADMIN($uid)) {
	return 1;
    }

    $query_result =
539
	DBQueryFatal("SELECT gid,expt_head_uid FROM experiments WHERE ".
Leigh B. Stoller's avatar
Leigh B. Stoller committed
540
541
542
543
544
		     "eid='$eid' and pid='$pid'");
    
    if (mysql_num_rows($query_result) == 0) {
	return 0;
    }
545
546
547
    $row  = mysql_fetch_array($query_result);
    $gid  = $row[gid];
    $head = $row[expt_head_uid];
Leigh B. Stoller's avatar
Leigh B. Stoller committed
548
549
550
551
552
553
554
555

    if ($access_type == $TB_EXPT_READINFO) {
	$mintrust = $TBDB_TRUST_USER;
    }
    else {
	$mintrust = $TBDB_TRUST_LOCALROOT;
    }

556
557
558
559
560
561
562
563
    #
    # Either proper permission in the group, or group_root in the project.
    # This lets group_roots muck with other peoples experiments, including
    # those in groups they do not belong to.
    #

   return TBMinTrust(TBGrpTrust($uid, $pid, $gid), $mintrust) ||
	TBMinTrust(TBGrpTrust($uid, $pid, $pid), $TBDB_TRUST_GROUPROOT);
Leigh B. Stoller's avatar
Leigh B. Stoller committed
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
}

#
# Determine if uid can access a node (read or modify).
#
# Usage: TBNodeAccessCheck($uid, $node_id, $access_type)
#	 returns 0 if not allowed.
#        returns 1 if allowed.
# 
function TBNodeAccessCheck($uid, $node_id, $access_type)
{
    global $TB_NODEACCESS_READINFO;
    global $TB_NODEACCESS_MODIFYINFO;
    global $TB_NODEACCESS_LOADIMAGE;
    global $TB_NODEACCESS_REBOOT;
    global $TB_NODEACCESS_POWERCYCLE;
    global $TB_NODEACCESS_MIN;
    global $TB_NODEACCESS_MAX;
    global $TBDB_TRUST_USER;
    global $TBDB_TRUST_LOCALROOT;
    $mintrust;

    if ($access_type < $TB_NODEACCESS_MIN ||
	$access_type > $TB_NODEACCESS_MAX) {
	TBERROR("Invalid access type: $access_type!", 1);
    }

    $query_result =
592
	DBQueryFatal("select e.pid,e.gid from reserved as r ".
Leigh B. Stoller's avatar
Leigh B. Stoller committed
593
		     "left join experiments as e on ".
594
595
		     "     e.pid=r.pid and e.eid=r.eid ".
		     "where r.node_id='$node_id'");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
596
597
598
599

    if (mysql_num_rows($query_result) == 0) {
	return 0;
    }
600
601
602
    $row = mysql_fetch_array($query_result);
    $pid = $row[pid];
    $gid = $row[gid];
Leigh B. Stoller's avatar
Leigh B. Stoller committed
603
604
605
606
607
608
609

    if ($access_type == $TB_NODEACCESS_READINFO) {
	$mintrust = $TBDB_TRUST_USER;
    }
    else {
	$mintrust = $TBDB_TRUST_LOCALROOT;
    }
610
611
    return TBMinTrust(TBGrpTrust($uid, $pid, $gid), $mintrust) ||
	TBMinTrust(TBGrpTrust($uid, $pid, $pid), $TBDB_TRUST_GROUPROOT);
Leigh B. Stoller's avatar
Leigh B. Stoller committed
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
}

#
# Determine if uid can access a another user record (read or modify).
#
# Usage: TBUserInfoAccessCheck($uid, $target_uid, $access_type)
#	 returns 0 if not allowed.
#        returns 1 if allowed.
# 
function TBUserInfoAccessCheck($uid, $target_uid, $access_type)
{
    global $TB_USERINFO_READINFO;
    global $TB_USERINFO_MODIFYINFO;
    global $TB_USERINFO_MIN;
    global $TB_USERINFO_MAX;

    if ($access_type < $TB_USERINFO_MIN || $access_type > $TB_USERINFO_MAX) {
	TBERROR("Invalid access type $access_type!", 1);
    }

    if (strcmp($uid, $target_uid) == 0) {
	return 1;
    }

636
637
638
639
640
641
642
    #
    # Admins do whatever they want!
    # 
    if (ISADMIN($uid)) {
	return 1;
    }

Leigh B. Stoller's avatar
Leigh B. Stoller committed
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
    #
    # This join will allow the operation if the current user is in the same
    # group (any group) as the target user, but with root permissions.
    # 
    $query_result =
	DBQueryFatal("select g.trust from group_membership as g ".
		     "left join group_membership as authed on ".
		     "     g.pid=authed.pid and g.gid=authed.gid and ".
		     "     g.uid='$target_uid' ".
		     "where authed.uid='$uid' and ".
		     "      (authed.trust='group_root' or ".
		     "       authed.trust='project_root')");

    if (mysql_num_rows($query_result) == 0) {
	return 0;
    }
    return 1;
}

#
# Access checks for an OSID. Tests for tbadmin.
#
# Usage: TBOSIDAccessCheck($uid, $osid, $access_type)
#	 returns 0 if not allowed.
#        returns 1 if allowed.
# 
function TBOSIDAccessCheck($uid, $osid, $access_type)
{
    global $TB_OSID_READINFO;
    global $TB_OSID_MODIFYINFO;
    global $TB_OSID_DESTROY;
    global $TB_OSID_MIN;
    global $TB_OSID_MAX;
    global $TBDB_TRUST_USER;
    global $TBDB_TRUST_LOCALROOT;
    $mintrust;

    if ($access_type < $TB_OSID_MIN || $access_type > $TB_OSID_MAX) {
	TBERROR("Invalid access type $access_type!", 1);
    }

    #
    # Admins do whatever they want!
    # 
    if (ISADMIN($uid)) {
	return 1;
    }

    #
    # No GIDs yet.
    #
    $query_result =
695
	DBQueryFatal("SELECT pid,shared FROM os_info WHERE osid='$osid'");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
696
697
698
699
700
    
    if (mysql_num_rows($query_result) == 0) {
	return 0;
    }
    $row = mysql_fetch_array($query_result);
701
702
    $pid    = $row[pid];
    $shared = $row[shared];
Leigh B. Stoller's avatar
Leigh B. Stoller committed
703
704
705
706

    #
    # Global OSIDs can be read by anyone.
    # 
707
    if ($shared) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
	if ($access_type == $TB_OSID_READINFO) {
	    return 1;
	}
	return 0;
    }
    
    #
    # Otherwise must have proper trust in the project.
    # 
    if ($access_type == $TB_OSID_READINFO) {
	$mintrust = $TBDB_TRUST_USER;
    }
    else {
	$mintrust = $TBDB_TRUST_LOCALROOT;
    }

    return TBMinTrust(TBProjTrust($uid, $pid), $mintrust);
}

#
# Access checks for an ImageID
#
# Usage: TBImageIDAccessCheck($uid, $imageid, $access_type)
#	 returns 0 if not allowed.
#        returns 1 if allowed.
# 
function TBImageIDAccessCheck($uid, $imageid, $access_type)
{
    global $TB_IMAGEID_READINFO;
    global $TB_IMAGEID_MODIFYINFO;
    global $TB_IMAGEID_DESTROY;
    global $TB_IMAGEID_ACCESS;
    global $TB_IMAGEID_MIN;
    global $TB_IMAGEID_MAX;
    global $TBDB_TRUST_USER;
    global $TBDB_TRUST_LOCALROOT;
    $mintrust;

    if ($access_type < $TB_IMAGEID_MIN || $access_type > $TB_IMAGEID_MAX) {
	TBERROR("Invalid access type $access_type!", 1);
    }

    #
    # Admins do whatever they want!
    # 
    if (ISADMIN($uid)) {
	return 1;
    }

    $query_result =
758
759
	DBQueryFatal("SELECT pid,gid,shared,global FROM images ".
		     "WHERE imageid='$imageid'");
Leigh B. Stoller's avatar
Leigh B. Stoller committed
760
761
762
763
    
    if (mysql_num_rows($query_result) == 0) {
	return 0;
    }
764
765
    $row    = mysql_fetch_array($query_result);
    $shared = $row[shared];
766
    $global = $row["global"];
767
    $pid    = $row[pid];
768
    $gid    = $row[gid];
Leigh B. Stoller's avatar
Leigh B. Stoller committed
769
770

    #
771
    # Global ImageIDs can be read by anyone but written by Admins only.
Leigh B. Stoller's avatar
Leigh B. Stoller committed
772
    # 
773
    if ($global) {
Leigh B. Stoller's avatar
Leigh B. Stoller committed
774
775
776
777
778
779
780
781
782
783
784
	if ($access_type == $TB_IMAGEID_READINFO) {
	    return 1;
	}
	return 0;
    }

    #
    # Otherwise must have proper trust in the project.
    # 
    if ($access_type == $TB_IMAGEID_READINFO) {
	$mintrust = $TBDB_TRUST_USER;
785
786
787
788
789
        #
        # Shared imageids are readable by anyone in the project.
        #
	if ($shared)
	    $gid = $pid;
Leigh B. Stoller's avatar
Leigh B. Stoller committed
790
791
792
793
794
    }
    else {
	$mintrust = $TBDB_TRUST_LOCALROOT;
    }

795
796
    return TBMinTrust(TBGrpTrust($uid, $pid, $gid), $mintrust) ||
	TBMinTrust(TBGrpTrust($uid, $pid, $pid), $TBDB_TRUST_GROUPROOT);
Leigh B. Stoller's avatar
Leigh B. Stoller committed
797
798
799
800
801
802
}

#
# Return the Unix GID Name and Number for a group. This is distinct from
# the name we use within the Testbed system.
#
Leigh B. Stoller's avatar
Leigh B. Stoller committed
803
# usage: TBGroupUnixInfo($pid, $gid, &$unix_gid, &$unix_name)
Leigh B. Stoller's avatar
Leigh B. Stoller committed
804
#
Leigh B. Stoller's avatar
Leigh B. Stoller committed
805
function TBGroupUnixInfo($pid, $gid, &$unix_gid, &$unix_name)
Leigh B. Stoller's avatar
Leigh B. Stoller committed
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
{
    $query_result =
	DBQueryFatal("select unix_name,unix_gid from groups ".
		     "where pid='$pid' and gid='$gid'");

    if (mysql_num_rows($query_result) == 0) {
	TBERROR("No such group $gid in project $pid!", 1);
    }
    $row = mysql_fetch_array($query_result);
    $unix_gid  = $row[unix_gid];
    $unix_name = $row[unix_name];
}

#
# Get name and email info for a uid. Args are pass by reference.
#
# usage: TBUserInfo($uid, $user_name, $user_email)
#
function TBUserInfo($uid, &$user_name, &$user_email)
{
    $query_result =
	DBQueryFatal("select usr_name,usr_email from users where uid='$uid'");

    if (mysql_num_rows($query_result) == 0) {
	TBERROR("No such user $uid!", 1);
    }
    $row = mysql_fetch_array($query_result);
    $user_name  = $row[usr_name];
    $user_email = $row[usr_email];
}

837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
#
# Confirm a current user or not.
#
# usage TBCurrentUser($uid)
#       returns 1 if a valid user.
#       returns 0 if not a valid user.
#
function TBCurrentUser($uid)
{
    $query_result =
	DBQueryFatal("SELECT usr_pswd FROM users WHERE uid='$uid'");

    return mysql_num_rows($query_result);
}

852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
#
# Check to see if an email is being used twice.
#
# usage TBCurrentEmail($email)
#       returns 1 if a valid email for someone.
#       returns 0 if no such email address used by anyone.
#
function TBCurrentEmail($email)
{
    $query_result =
	DBQueryFatal("SELECT uid FROM users WHERE usr_email='$email'");

    return mysql_num_rows($query_result);
}

867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
#
# Get user status,
#
# usage TBUserStatus($uid)
#       returns status if a valid user.
#       returns 0 if not a valid user.
#
function TBUserStatus($uid)
{
    $query_result =
	DBQueryFatal("SELECT status FROM users WHERE uid='$uid'");

    if (! mysql_num_rows($query_result)) {
	return 0;
    }
    $row = mysql_fetch_row($query_result);
    return $row[0];
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
#
# Confirm a valid pid/gid
#
# usage TBValidGroup($pid, $gid)
#       returns 1 if a valid group.
#       returns 0 if not a valid group
#
function TBValidGroup($pid, $gid)
{
    $query_result =
	DBQueryFatal("select pid,gid from groups as g ".
		     "where pid='$pid' and gid='$gid'");

    if (mysql_num_rows($query_result) == 0) {
	return 0;
    }

    #
    # XXX String compare to ensure case match. 
    #
    $row = mysql_fetch_row($query_result);
    if (strcmp($row[0], $pid) ||
	strcmp($row[1], $gid)) {
	return 0;
    }
    return 1;
}

914
915
916
917
918
919
920
921
922
923
924
925
#
# Confirm a valid project.
#
# usage TBValidProject($pid)
#       returns 1 if a valid project.
#       returns 0 if not a valid project.
#
function TBValidProject($pid)
{
    return TBValidGroup($pid, $pid);
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
#
# Confirm a group member.
#
# usage TBGroupMember($uid, $pid, $gid, &$approved)
#       returns 1 if a member.
#       returns 0 if not a member.
#
function TBGroupMember($uid, $pid, $gid, &$approved)
{
    global $TBDB_TRUST_USER;
	
    $approved = 0;
    
    $query_result =
	DBQueryFatal("select trust from group_membership ".
		     "where uid='$uid' and pid='$pid' and gid='$gid'");

    if (mysql_num_rows($query_result) == 0) {
	return 0;
    }
    $row = mysql_fetch_row($query_result);
    $trust = $row[0];

    $approved = TBMinTrust($trust, $TBDB_TRUST_USER);
    return 1;
}

953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
#
# Confirm a valid OS Descriptor in the specified project.
#
# usage TBValidOS($pid, $imagename)
#       returns 1 if valid
#       returns 0 if not valid
#
function TBValidOS($pid, $osname)
{
    $query_result =
	DBQueryFatal("select osid from os_info where ".
		     "pid='$pid' and osname='$osname'");

    if (mysql_num_rows($query_result) == 0) {
	return 0;
    }
    return 1;
}

Leigh B. Stoller's avatar
Leigh B. Stoller committed
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
#
# Confirm a valid osid.
#
# usage TBValidOSID($osid)
#       returns 1 if valid
#       returns 0 if not valid
#
function TBValidOSID($osid)
{
    $query_result =
	DBQueryFatal("select osid from os_info where osid='$osid'");

    if (mysql_num_rows($query_result) == 0) {
	return 0;
    }
    return 1;
}

#
991
992
993
994
995
996
997
998
999
1000
# Confirm a valid image in the specified project.
#
# usage TBValidImage($pid, $imagename)
#       returns 1 if valid
#       returns 0 if not valid
#
function TBValidImage($pid, $imagename)
{
    $query_result =
	DBQueryFatal("select imageid from images where ".
For faster browsing, not all history is shown. View entire blame