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37#define DEBUG_SUBSYSTEM S_SEC
38
39#include "../../include/linux/libcfs/libcfs.h"
40#include <linux/crypto.h>
41#include <linux/key.h>
42
43#include "../include/obd.h"
44#include "../include/obd_support.h"
45#include "../include/lustre_import.h"
46#include "../include/lustre_param.h"
47#include "../include/lustre_sec.h"
48
49#include "ptlrpc_internal.h"
50
51const char *sptlrpc_part2name(enum lustre_sec_part part)
52{
53 switch (part) {
54 case LUSTRE_SP_CLI:
55 return "cli";
56 case LUSTRE_SP_MDT:
57 return "mdt";
58 case LUSTRE_SP_OST:
59 return "ost";
60 case LUSTRE_SP_MGC:
61 return "mgc";
62 case LUSTRE_SP_MGS:
63 return "mgs";
64 case LUSTRE_SP_ANY:
65 return "any";
66 default:
67 return "err";
68 }
69}
70EXPORT_SYMBOL(sptlrpc_part2name);
71
72enum lustre_sec_part sptlrpc_target_sec_part(struct obd_device *obd)
73{
74 const char *type = obd->obd_type->typ_name;
75
76 if (!strcmp(type, LUSTRE_MDT_NAME))
77 return LUSTRE_SP_MDT;
78 if (!strcmp(type, LUSTRE_OST_NAME))
79 return LUSTRE_SP_OST;
80 if (!strcmp(type, LUSTRE_MGS_NAME))
81 return LUSTRE_SP_MGS;
82
83 CERROR("unknown target %p(%s)\n", obd, type);
84 return LUSTRE_SP_ANY;
85}
86EXPORT_SYMBOL(sptlrpc_target_sec_part);
87
88
89
90
91
92
93
94
95int sptlrpc_parse_flavor(const char *str, struct sptlrpc_flavor *flvr)
96{
97 char buf[32];
98 char *bulk, *alg;
99
100 memset(flvr, 0, sizeof(*flvr));
101
102 if (str == NULL || str[0] == '\0') {
103 flvr->sf_rpc = SPTLRPC_FLVR_INVALID;
104 return 0;
105 }
106
107 strncpy(buf, str, sizeof(buf));
108 buf[sizeof(buf) - 1] = '\0';
109
110 bulk = strchr(buf, '-');
111 if (bulk)
112 *bulk++ = '\0';
113
114 flvr->sf_rpc = sptlrpc_name2flavor_base(buf);
115 if (flvr->sf_rpc == SPTLRPC_FLVR_INVALID)
116 goto err_out;
117
118
119
120
121 if (flvr->sf_rpc == SPTLRPC_FLVR_PLAIN) {
122 flvr->u_bulk.hash.hash_alg = BULK_HASH_ALG_ADLER32;
123 if (bulk) {
124
125
126
127 alg = strchr(bulk, ':');
128 if (alg == NULL)
129 goto err_out;
130 *alg++ = '\0';
131
132 if (strcmp(bulk, "hash"))
133 goto err_out;
134
135 flvr->u_bulk.hash.hash_alg = sptlrpc_get_hash_alg(alg);
136 if (flvr->u_bulk.hash.hash_alg >= BULK_HASH_ALG_MAX)
137 goto err_out;
138 }
139
140 if (flvr->u_bulk.hash.hash_alg == BULK_HASH_ALG_NULL)
141 flvr_set_bulk_svc(&flvr->sf_rpc, SPTLRPC_BULK_SVC_NULL);
142 else
143 flvr_set_bulk_svc(&flvr->sf_rpc, SPTLRPC_BULK_SVC_INTG);
144 } else {
145 if (bulk)
146 goto err_out;
147 }
148
149 flvr->sf_flags = 0;
150 return 0;
151
152err_out:
153 CERROR("invalid flavor string: %s\n", str);
154 return -EINVAL;
155}
156EXPORT_SYMBOL(sptlrpc_parse_flavor);
157
158
159
160
161
162static void get_default_flavor(struct sptlrpc_flavor *sf)
163{
164 memset(sf, 0, sizeof(*sf));
165
166 sf->sf_rpc = SPTLRPC_FLVR_NULL;
167 sf->sf_flags = 0;
168}
169
170static void sptlrpc_rule_init(struct sptlrpc_rule *rule)
171{
172 rule->sr_netid = LNET_NIDNET(LNET_NID_ANY);
173 rule->sr_from = LUSTRE_SP_ANY;
174 rule->sr_to = LUSTRE_SP_ANY;
175 rule->sr_padding = 0;
176
177 get_default_flavor(&rule->sr_flvr);
178}
179
180
181
182
183int sptlrpc_parse_rule(char *param, struct sptlrpc_rule *rule)
184{
185 char *flavor, *dir;
186 int rc;
187
188 sptlrpc_rule_init(rule);
189
190 flavor = strchr(param, '=');
191 if (flavor == NULL) {
192 CERROR("invalid param, no '='\n");
193 return -EINVAL;
194 }
195 *flavor++ = '\0';
196
197 dir = strchr(param, '.');
198 if (dir)
199 *dir++ = '\0';
200
201
202 if (strcmp(param, "default")) {
203 rule->sr_netid = libcfs_str2net(param);
204 if (rule->sr_netid == LNET_NIDNET(LNET_NID_ANY)) {
205 CERROR("invalid network name: %s\n", param);
206 return -EINVAL;
207 }
208 }
209
210
211 if (dir) {
212 if (!strcmp(dir, "mdt2ost")) {
213 rule->sr_from = LUSTRE_SP_MDT;
214 rule->sr_to = LUSTRE_SP_OST;
215 } else if (!strcmp(dir, "mdt2mdt")) {
216 rule->sr_from = LUSTRE_SP_MDT;
217 rule->sr_to = LUSTRE_SP_MDT;
218 } else if (!strcmp(dir, "cli2ost")) {
219 rule->sr_from = LUSTRE_SP_CLI;
220 rule->sr_to = LUSTRE_SP_OST;
221 } else if (!strcmp(dir, "cli2mdt")) {
222 rule->sr_from = LUSTRE_SP_CLI;
223 rule->sr_to = LUSTRE_SP_MDT;
224 } else {
225 CERROR("invalid rule dir segment: %s\n", dir);
226 return -EINVAL;
227 }
228 }
229
230
231 rc = sptlrpc_parse_flavor(flavor, &rule->sr_flvr);
232 if (rc)
233 return -EINVAL;
234
235 return 0;
236}
237EXPORT_SYMBOL(sptlrpc_parse_rule);
238
239void sptlrpc_rule_set_free(struct sptlrpc_rule_set *rset)
240{
241 LASSERT(rset->srs_nslot ||
242 (rset->srs_nrule == 0 && rset->srs_rules == NULL));
243
244 if (rset->srs_nslot) {
245 kfree(rset->srs_rules);
246 sptlrpc_rule_set_init(rset);
247 }
248}
249EXPORT_SYMBOL(sptlrpc_rule_set_free);
250
251
252
253
254int sptlrpc_rule_set_expand(struct sptlrpc_rule_set *rset)
255{
256 struct sptlrpc_rule *rules;
257 int nslot;
258
259 might_sleep();
260
261 if (rset->srs_nrule < rset->srs_nslot)
262 return 0;
263
264 nslot = rset->srs_nslot + 8;
265
266
267 rules = kcalloc(nslot, sizeof(*rset->srs_rules), GFP_NOFS);
268 if (rules == NULL)
269 return -ENOMEM;
270
271 if (rset->srs_nrule) {
272 LASSERT(rset->srs_nslot && rset->srs_rules);
273 memcpy(rules, rset->srs_rules,
274 rset->srs_nrule * sizeof(*rset->srs_rules));
275
276 kfree(rset->srs_rules);
277 }
278
279 rset->srs_rules = rules;
280 rset->srs_nslot = nslot;
281 return 0;
282}
283EXPORT_SYMBOL(sptlrpc_rule_set_expand);
284
285static inline int rule_spec_dir(struct sptlrpc_rule *rule)
286{
287 return (rule->sr_from != LUSTRE_SP_ANY ||
288 rule->sr_to != LUSTRE_SP_ANY);
289}
290static inline int rule_spec_net(struct sptlrpc_rule *rule)
291{
292 return (rule->sr_netid != LNET_NIDNET(LNET_NID_ANY));
293}
294static inline int rule_match_dir(struct sptlrpc_rule *r1,
295 struct sptlrpc_rule *r2)
296{
297 return (r1->sr_from == r2->sr_from && r1->sr_to == r2->sr_to);
298}
299static inline int rule_match_net(struct sptlrpc_rule *r1,
300 struct sptlrpc_rule *r2)
301{
302 return (r1->sr_netid == r2->sr_netid);
303}
304
305
306
307
308
309int sptlrpc_rule_set_merge(struct sptlrpc_rule_set *rset,
310 struct sptlrpc_rule *rule)
311{
312 struct sptlrpc_rule *p = rset->srs_rules;
313 int spec_dir, spec_net;
314 int rc, n, match = 0;
315
316 might_sleep();
317
318 spec_net = rule_spec_net(rule);
319 spec_dir = rule_spec_dir(rule);
320
321 for (n = 0; n < rset->srs_nrule; n++) {
322 p = &rset->srs_rules[n];
323
324
325
326
327
328
329
330 if (!rule_match_net(p, rule)) {
331 if (spec_net) {
332 if (rule_spec_net(p))
333 continue;
334 else
335 break;
336 } else {
337 continue;
338 }
339 }
340
341
342 if (!rule_match_dir(p, rule)) {
343 if (spec_dir) {
344 if (rule_spec_dir(p))
345 continue;
346 else
347 break;
348 } else {
349 continue;
350 }
351 }
352
353
354 match = 1;
355 break;
356 }
357
358 if (match) {
359 LASSERT(n >= 0 && n < rset->srs_nrule);
360
361 if (rule->sr_flvr.sf_rpc == SPTLRPC_FLVR_INVALID) {
362
363 if (n < rset->srs_nrule - 1)
364 memmove(&rset->srs_rules[n],
365 &rset->srs_rules[n + 1],
366 (rset->srs_nrule - n - 1) *
367 sizeof(*rule));
368 rset->srs_nrule--;
369 } else {
370
371 memcpy(&rset->srs_rules[n], rule, sizeof(*rule));
372 }
373 } else {
374 LASSERT(n >= 0 && n <= rset->srs_nrule);
375
376 if (rule->sr_flvr.sf_rpc != SPTLRPC_FLVR_INVALID) {
377 rc = sptlrpc_rule_set_expand(rset);
378 if (rc)
379 return rc;
380
381 if (n < rset->srs_nrule)
382 memmove(&rset->srs_rules[n + 1],
383 &rset->srs_rules[n],
384 (rset->srs_nrule - n) * sizeof(*rule));
385 memcpy(&rset->srs_rules[n], rule, sizeof(*rule));
386 rset->srs_nrule++;
387 } else {
388 CDEBUG(D_CONFIG, "ignore the unmatched deletion\n");
389 }
390 }
391
392 return 0;
393}
394EXPORT_SYMBOL(sptlrpc_rule_set_merge);
395
396
397
398
399
400int sptlrpc_rule_set_choose(struct sptlrpc_rule_set *rset,
401 enum lustre_sec_part from,
402 enum lustre_sec_part to,
403 lnet_nid_t nid,
404 struct sptlrpc_flavor *sf)
405{
406 struct sptlrpc_rule *r;
407 int n;
408
409 for (n = 0; n < rset->srs_nrule; n++) {
410 r = &rset->srs_rules[n];
411
412 if (LNET_NIDNET(nid) != LNET_NIDNET(LNET_NID_ANY) &&
413 r->sr_netid != LNET_NIDNET(LNET_NID_ANY) &&
414 LNET_NIDNET(nid) != r->sr_netid)
415 continue;
416
417 if (from != LUSTRE_SP_ANY && r->sr_from != LUSTRE_SP_ANY &&
418 from != r->sr_from)
419 continue;
420
421 if (to != LUSTRE_SP_ANY && r->sr_to != LUSTRE_SP_ANY &&
422 to != r->sr_to)
423 continue;
424
425 *sf = r->sr_flvr;
426 return 1;
427 }
428
429 return 0;
430}
431EXPORT_SYMBOL(sptlrpc_rule_set_choose);
432
433void sptlrpc_rule_set_dump(struct sptlrpc_rule_set *rset)
434{
435 struct sptlrpc_rule *r;
436 int n;
437
438 for (n = 0; n < rset->srs_nrule; n++) {
439 r = &rset->srs_rules[n];
440 CDEBUG(D_SEC, "<%02d> from %x to %x, net %x, rpc %x\n", n,
441 r->sr_from, r->sr_to, r->sr_netid, r->sr_flvr.sf_rpc);
442 }
443}
444EXPORT_SYMBOL(sptlrpc_rule_set_dump);
445
446
447
448
449
450struct sptlrpc_conf_tgt {
451 struct list_head sct_list;
452 char sct_name[MAX_OBD_NAME];
453 struct sptlrpc_rule_set sct_rset;
454};
455
456struct sptlrpc_conf {
457 struct list_head sc_list;
458 char sc_fsname[MTI_NAME_MAXLEN];
459 unsigned int sc_modified;
460 unsigned int sc_updated:1,
461 sc_local:1;
462 struct sptlrpc_rule_set sc_rset;
463 struct list_head sc_tgts;
464};
465
466static struct mutex sptlrpc_conf_lock;
467static LIST_HEAD(sptlrpc_confs);
468
469static inline int is_hex(char c)
470{
471 return ((c >= '0' && c <= '9') ||
472 (c >= 'a' && c <= 'f'));
473}
474
475static void target2fsname(const char *tgt, char *fsname, int buflen)
476{
477 const char *ptr;
478 int len;
479
480 ptr = strrchr(tgt, '-');
481 if (ptr) {
482 if ((strncmp(ptr, "-MDT", 4) != 0 &&
483 strncmp(ptr, "-OST", 4) != 0) ||
484 !is_hex(ptr[4]) || !is_hex(ptr[5]) ||
485 !is_hex(ptr[6]) || !is_hex(ptr[7]))
486 ptr = NULL;
487 }
488
489
490 if (ptr == NULL)
491 len = strlen(tgt);
492 else
493 len = ptr - tgt;
494
495 len = min(len, buflen - 1);
496 memcpy(fsname, tgt, len);
497 fsname[len] = '\0';
498}
499
500static void sptlrpc_conf_free_rsets(struct sptlrpc_conf *conf)
501{
502 struct sptlrpc_conf_tgt *conf_tgt, *conf_tgt_next;
503
504 sptlrpc_rule_set_free(&conf->sc_rset);
505
506 list_for_each_entry_safe(conf_tgt, conf_tgt_next,
507 &conf->sc_tgts, sct_list) {
508 sptlrpc_rule_set_free(&conf_tgt->sct_rset);
509 list_del(&conf_tgt->sct_list);
510 kfree(conf_tgt);
511 }
512 LASSERT(list_empty(&conf->sc_tgts));
513
514 conf->sc_updated = 0;
515 conf->sc_local = 0;
516}
517
518static void sptlrpc_conf_free(struct sptlrpc_conf *conf)
519{
520 CDEBUG(D_SEC, "free sptlrpc conf %s\n", conf->sc_fsname);
521
522 sptlrpc_conf_free_rsets(conf);
523 list_del(&conf->sc_list);
524 kfree(conf);
525}
526
527static
528struct sptlrpc_conf_tgt *sptlrpc_conf_get_tgt(struct sptlrpc_conf *conf,
529 const char *name,
530 int create)
531{
532 struct sptlrpc_conf_tgt *conf_tgt;
533
534 list_for_each_entry(conf_tgt, &conf->sc_tgts, sct_list) {
535 if (strcmp(conf_tgt->sct_name, name) == 0)
536 return conf_tgt;
537 }
538
539 if (!create)
540 return NULL;
541
542 conf_tgt = kzalloc(sizeof(*conf_tgt), GFP_NOFS);
543 if (conf_tgt) {
544 strlcpy(conf_tgt->sct_name, name, sizeof(conf_tgt->sct_name));
545 sptlrpc_rule_set_init(&conf_tgt->sct_rset);
546 list_add(&conf_tgt->sct_list, &conf->sc_tgts);
547 }
548
549 return conf_tgt;
550}
551
552static
553struct sptlrpc_conf *sptlrpc_conf_get(const char *fsname,
554 int create)
555{
556 struct sptlrpc_conf *conf;
557
558 list_for_each_entry(conf, &sptlrpc_confs, sc_list) {
559 if (strcmp(conf->sc_fsname, fsname) == 0)
560 return conf;
561 }
562
563 if (!create)
564 return NULL;
565
566 conf = kzalloc(sizeof(*conf), GFP_NOFS);
567 if (!conf)
568 return NULL;
569
570 strcpy(conf->sc_fsname, fsname);
571 sptlrpc_rule_set_init(&conf->sc_rset);
572 INIT_LIST_HEAD(&conf->sc_tgts);
573 list_add(&conf->sc_list, &sptlrpc_confs);
574
575 CDEBUG(D_SEC, "create sptlrpc conf %s\n", conf->sc_fsname);
576 return conf;
577}
578
579
580
581
582static int sptlrpc_conf_merge_rule(struct sptlrpc_conf *conf,
583 const char *target,
584 struct sptlrpc_rule *rule)
585{
586 struct sptlrpc_conf_tgt *conf_tgt;
587 struct sptlrpc_rule_set *rule_set;
588
589
590 if (strcmp(conf->sc_fsname, target) == 0) {
591 rule_set = &conf->sc_rset;
592 } else {
593 conf_tgt = sptlrpc_conf_get_tgt(conf, target, 1);
594 if (conf_tgt) {
595 rule_set = &conf_tgt->sct_rset;
596 } else {
597 CERROR("out of memory, can't merge rule!\n");
598 return -ENOMEM;
599 }
600 }
601
602 return sptlrpc_rule_set_merge(rule_set, rule);
603}
604
605
606
607
608
609
610static int __sptlrpc_process_config(struct lustre_cfg *lcfg,
611 struct sptlrpc_conf *conf)
612{
613 char *target, *param;
614 char fsname[MTI_NAME_MAXLEN];
615 struct sptlrpc_rule rule;
616 int rc;
617
618 target = lustre_cfg_string(lcfg, 1);
619 if (target == NULL) {
620 CERROR("missing target name\n");
621 return -EINVAL;
622 }
623
624 param = lustre_cfg_string(lcfg, 2);
625 if (param == NULL) {
626 CERROR("missing parameter\n");
627 return -EINVAL;
628 }
629
630 CDEBUG(D_SEC, "processing rule: %s.%s\n", target, param);
631
632
633 if (strncmp(param, PARAM_SRPC_FLVR, sizeof(PARAM_SRPC_FLVR) - 1) != 0) {
634 CERROR("Invalid sptlrpc parameter: %s\n", param);
635 return -EINVAL;
636 }
637 param += sizeof(PARAM_SRPC_FLVR) - 1;
638
639 rc = sptlrpc_parse_rule(param, &rule);
640 if (rc)
641 return -EINVAL;
642
643 if (conf == NULL) {
644 target2fsname(target, fsname, sizeof(fsname));
645
646 mutex_lock(&sptlrpc_conf_lock);
647 conf = sptlrpc_conf_get(fsname, 0);
648 if (conf == NULL) {
649 CERROR("can't find conf\n");
650 rc = -ENOMEM;
651 } else {
652 rc = sptlrpc_conf_merge_rule(conf, target, &rule);
653 }
654 mutex_unlock(&sptlrpc_conf_lock);
655 } else {
656 LASSERT(mutex_is_locked(&sptlrpc_conf_lock));
657 rc = sptlrpc_conf_merge_rule(conf, target, &rule);
658 }
659
660 if (rc == 0)
661 conf->sc_modified++;
662
663 return rc;
664}
665
666int sptlrpc_process_config(struct lustre_cfg *lcfg)
667{
668 return __sptlrpc_process_config(lcfg, NULL);
669}
670EXPORT_SYMBOL(sptlrpc_process_config);
671
672static int logname2fsname(const char *logname, char *buf, int buflen)
673{
674 char *ptr;
675 int len;
676
677 ptr = strrchr(logname, '-');
678 if (ptr == NULL || strcmp(ptr, "-sptlrpc")) {
679 CERROR("%s is not a sptlrpc config log\n", logname);
680 return -EINVAL;
681 }
682
683 len = min((int) (ptr - logname), buflen - 1);
684
685 memcpy(buf, logname, len);
686 buf[len] = '\0';
687 return 0;
688}
689
690void sptlrpc_conf_log_update_begin(const char *logname)
691{
692 struct sptlrpc_conf *conf;
693 char fsname[16];
694
695 if (logname2fsname(logname, fsname, sizeof(fsname)))
696 return;
697
698 mutex_lock(&sptlrpc_conf_lock);
699
700 conf = sptlrpc_conf_get(fsname, 0);
701 if (conf) {
702 if (conf->sc_local) {
703 LASSERT(conf->sc_updated == 0);
704 sptlrpc_conf_free_rsets(conf);
705 }
706 conf->sc_modified = 0;
707 }
708
709 mutex_unlock(&sptlrpc_conf_lock);
710}
711EXPORT_SYMBOL(sptlrpc_conf_log_update_begin);
712
713
714
715
716void sptlrpc_conf_log_update_end(const char *logname)
717{
718 struct sptlrpc_conf *conf;
719 char fsname[16];
720
721 if (logname2fsname(logname, fsname, sizeof(fsname)))
722 return;
723
724 mutex_lock(&sptlrpc_conf_lock);
725
726 conf = sptlrpc_conf_get(fsname, 0);
727 if (conf) {
728
729
730
731
732 if (conf->sc_updated == 0)
733 conf->sc_modified++;
734
735 conf->sc_updated = 1;
736 }
737
738 mutex_unlock(&sptlrpc_conf_lock);
739}
740EXPORT_SYMBOL(sptlrpc_conf_log_update_end);
741
742void sptlrpc_conf_log_start(const char *logname)
743{
744 char fsname[16];
745
746 if (logname2fsname(logname, fsname, sizeof(fsname)))
747 return;
748
749 mutex_lock(&sptlrpc_conf_lock);
750 sptlrpc_conf_get(fsname, 1);
751 mutex_unlock(&sptlrpc_conf_lock);
752}
753EXPORT_SYMBOL(sptlrpc_conf_log_start);
754
755void sptlrpc_conf_log_stop(const char *logname)
756{
757 struct sptlrpc_conf *conf;
758 char fsname[16];
759
760 if (logname2fsname(logname, fsname, sizeof(fsname)))
761 return;
762
763 mutex_lock(&sptlrpc_conf_lock);
764 conf = sptlrpc_conf_get(fsname, 0);
765 if (conf)
766 sptlrpc_conf_free(conf);
767 mutex_unlock(&sptlrpc_conf_lock);
768}
769EXPORT_SYMBOL(sptlrpc_conf_log_stop);
770
771static inline void flavor_set_flags(struct sptlrpc_flavor *sf,
772 enum lustre_sec_part from,
773 enum lustre_sec_part to,
774 unsigned int fl_udesc)
775{
776
777
778
779
780 if (sf->sf_rpc == SPTLRPC_FLVR_NULL)
781 return;
782
783 if (from == LUSTRE_SP_MDT) {
784
785 sf->sf_flags |= PTLRPC_SEC_FL_ROOTONLY;
786 } else if (from == LUSTRE_SP_CLI && to == LUSTRE_SP_OST) {
787
788 sf->sf_flags |= PTLRPC_SEC_FL_ROOTONLY | PTLRPC_SEC_FL_BULK;
789 } else if (from == LUSTRE_SP_CLI && to == LUSTRE_SP_MDT) {
790
791 if (fl_udesc && sf->sf_rpc != SPTLRPC_FLVR_NULL)
792 sf->sf_flags |= PTLRPC_SEC_FL_UDESC;
793 }
794}
795
796void sptlrpc_conf_choose_flavor(enum lustre_sec_part from,
797 enum lustre_sec_part to,
798 struct obd_uuid *target,
799 lnet_nid_t nid,
800 struct sptlrpc_flavor *sf)
801{
802 struct sptlrpc_conf *conf;
803 struct sptlrpc_conf_tgt *conf_tgt;
804 char name[MTI_NAME_MAXLEN];
805 int len, rc = 0;
806
807 target2fsname(target->uuid, name, sizeof(name));
808
809 mutex_lock(&sptlrpc_conf_lock);
810
811 conf = sptlrpc_conf_get(name, 0);
812 if (conf == NULL)
813 goto out;
814
815
816 len = strlen(target->uuid);
817 LASSERT(len > 5);
818 memcpy(name, target->uuid, len - 5);
819 name[len - 5] = '\0';
820
821 conf_tgt = sptlrpc_conf_get_tgt(conf, name, 0);
822 if (conf_tgt) {
823 rc = sptlrpc_rule_set_choose(&conf_tgt->sct_rset,
824 from, to, nid, sf);
825 if (rc)
826 goto out;
827 }
828
829 rc = sptlrpc_rule_set_choose(&conf->sc_rset, from, to, nid, sf);
830out:
831 mutex_unlock(&sptlrpc_conf_lock);
832
833 if (rc == 0)
834 get_default_flavor(sf);
835
836 flavor_set_flags(sf, from, to, 1);
837}
838
839
840
841
842
843void sptlrpc_target_choose_flavor(struct sptlrpc_rule_set *rset,
844 enum lustre_sec_part from,
845 lnet_nid_t nid,
846 struct sptlrpc_flavor *sf)
847{
848 if (sptlrpc_rule_set_choose(rset, from, LUSTRE_SP_ANY, nid, sf) == 0)
849 get_default_flavor(sf);
850}
851EXPORT_SYMBOL(sptlrpc_target_choose_flavor);
852
853#define SEC_ADAPT_DELAY (10)
854
855
856
857
858
859void sptlrpc_conf_client_adapt(struct obd_device *obd)
860{
861 struct obd_import *imp;
862
863 LASSERT(strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) == 0 ||
864 strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME) == 0);
865 CDEBUG(D_SEC, "obd %s\n", obd->u.cli.cl_target_uuid.uuid);
866
867
868 down_read(&obd->u.cli.cl_sem);
869
870 imp = obd->u.cli.cl_import;
871 if (imp) {
872 spin_lock(&imp->imp_lock);
873 if (imp->imp_sec)
874 imp->imp_sec_expire = get_seconds() +
875 SEC_ADAPT_DELAY;
876 spin_unlock(&imp->imp_lock);
877 }
878
879 up_read(&obd->u.cli.cl_sem);
880}
881EXPORT_SYMBOL(sptlrpc_conf_client_adapt);
882
883int sptlrpc_conf_init(void)
884{
885 mutex_init(&sptlrpc_conf_lock);
886 return 0;
887}
888
889void sptlrpc_conf_fini(void)
890{
891 struct sptlrpc_conf *conf, *conf_next;
892
893 mutex_lock(&sptlrpc_conf_lock);
894 list_for_each_entry_safe(conf, conf_next, &sptlrpc_confs, sc_list) {
895 sptlrpc_conf_free(conf);
896 }
897 LASSERT(list_empty(&sptlrpc_confs));
898 mutex_unlock(&sptlrpc_conf_lock);
899}
900