4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, Whamcloud, Inc.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #define DEBUG_SUBSYSTEM S_SEC
39 #include <libcfs/libcfs.h>
41 #include <liblustre.h>
42 #include <libcfs/list.h>
44 #include <linux/crypto.h>
45 #include <linux/key.h>
49 #include <obd_class.h>
50 #include <obd_support.h>
51 #include <lustre_net.h>
52 #include <lustre_import.h>
53 #include <lustre_log.h>
54 #include <lustre_disk.h>
55 #include <lustre_dlm.h>
56 #include <lustre_param.h>
57 #include <lustre_sec.h>
59 #include "ptlrpc_internal.h"
61 const char *sptlrpc_part2name(enum lustre_sec_part part)
80 EXPORT_SYMBOL(sptlrpc_part2name);
82 enum lustre_sec_part sptlrpc_target_sec_part(struct obd_device *obd)
84 const char *type = obd->obd_type->typ_name;
86 if (!strcmp(type, LUSTRE_MDT_NAME))
88 if (!strcmp(type, LUSTRE_OST_NAME))
90 if (!strcmp(type, LUSTRE_MGS_NAME))
93 CERROR("unknown target %p(%s)\n", obd, type);
96 EXPORT_SYMBOL(sptlrpc_target_sec_part);
98 /****************************************
99 * user supplied flavor string parsing *
100 ****************************************/
103 * format: <base_flavor>[-<bulk_type:alg_spec>]
105 int sptlrpc_parse_flavor(const char *str, struct sptlrpc_flavor *flvr)
110 memset(flvr, 0, sizeof(*flvr));
112 if (str == NULL || str[0] == '\0') {
113 flvr->sf_rpc = SPTLRPC_FLVR_INVALID;
117 strncpy(buf, str, sizeof(buf));
118 buf[sizeof(buf) - 1] = '\0';
120 bulk = strchr(buf, '-');
124 flvr->sf_rpc = sptlrpc_name2flavor_base(buf);
125 if (flvr->sf_rpc == SPTLRPC_FLVR_INVALID)
129 * currently only base flavor "plain" can have bulk specification.
131 if (flvr->sf_rpc == SPTLRPC_FLVR_PLAIN) {
132 flvr->u_bulk.hash.hash_alg = BULK_HASH_ALG_ADLER32;
135 * format: plain-hash:<hash_alg>
137 alg = strchr(bulk, ':');
142 if (strcmp(bulk, "hash"))
145 flvr->u_bulk.hash.hash_alg = sptlrpc_get_hash_alg(alg);
146 if (flvr->u_bulk.hash.hash_alg >= BULK_HASH_ALG_MAX)
150 if (flvr->u_bulk.hash.hash_alg == BULK_HASH_ALG_NULL)
151 flvr_set_bulk_svc(&flvr->sf_rpc, SPTLRPC_BULK_SVC_NULL);
153 flvr_set_bulk_svc(&flvr->sf_rpc, SPTLRPC_BULK_SVC_INTG);
163 CERROR("invalid flavor string: %s\n", str);
166 EXPORT_SYMBOL(sptlrpc_parse_flavor);
168 /****************************************
170 ****************************************/
172 static void get_default_flavor(struct sptlrpc_flavor *sf)
174 memset(sf, 0, sizeof(*sf));
176 sf->sf_rpc = SPTLRPC_FLVR_NULL;
180 static void sptlrpc_rule_init(struct sptlrpc_rule *rule)
182 rule->sr_netid = LNET_NIDNET(LNET_NID_ANY);
183 rule->sr_from = LUSTRE_SP_ANY;
184 rule->sr_to = LUSTRE_SP_ANY;
185 rule->sr_padding = 0;
187 get_default_flavor(&rule->sr_flvr);
191 * format: network[.direction]=flavor
193 int sptlrpc_parse_rule(char *param, struct sptlrpc_rule *rule)
198 sptlrpc_rule_init(rule);
200 flavor = strchr(param, '=');
201 if (flavor == NULL) {
202 CERROR("invalid param, no '='\n");
207 dir = strchr(param, '.');
212 if (strcmp(param, "default")) {
213 rule->sr_netid = libcfs_str2net(param);
214 if (rule->sr_netid == LNET_NIDNET(LNET_NID_ANY)) {
215 CERROR("invalid network name: %s\n", param);
222 if (!strcmp(dir, "mdt2ost")) {
223 rule->sr_from = LUSTRE_SP_MDT;
224 rule->sr_to = LUSTRE_SP_OST;
225 } else if (!strcmp(dir, "mdt2mdt")) {
226 rule->sr_from = LUSTRE_SP_MDT;
227 rule->sr_to = LUSTRE_SP_MDT;
228 } else if (!strcmp(dir, "cli2ost")) {
229 rule->sr_from = LUSTRE_SP_CLI;
230 rule->sr_to = LUSTRE_SP_OST;
231 } else if (!strcmp(dir, "cli2mdt")) {
232 rule->sr_from = LUSTRE_SP_CLI;
233 rule->sr_to = LUSTRE_SP_MDT;
235 CERROR("invalid rule dir segment: %s\n", dir);
241 rc = sptlrpc_parse_flavor(flavor, &rule->sr_flvr);
247 EXPORT_SYMBOL(sptlrpc_parse_rule);
249 void sptlrpc_rule_set_free(struct sptlrpc_rule_set *rset)
251 LASSERT(rset->srs_nslot ||
252 (rset->srs_nrule == 0 && rset->srs_rules == NULL));
254 if (rset->srs_nslot) {
255 OBD_FREE(rset->srs_rules,
256 rset->srs_nslot * sizeof(*rset->srs_rules));
257 sptlrpc_rule_set_init(rset);
260 EXPORT_SYMBOL(sptlrpc_rule_set_free);
263 * return 0 if the rule set could accomodate one more rule.
265 int sptlrpc_rule_set_expand(struct sptlrpc_rule_set *rset)
267 struct sptlrpc_rule *rules;
272 if (rset->srs_nrule < rset->srs_nslot)
275 nslot = rset->srs_nslot + 8;
277 /* better use realloc() if available */
278 OBD_ALLOC(rules, nslot * sizeof(*rset->srs_rules));
282 if (rset->srs_nrule) {
283 LASSERT(rset->srs_nslot && rset->srs_rules);
284 memcpy(rules, rset->srs_rules,
285 rset->srs_nrule * sizeof(*rset->srs_rules));
287 OBD_FREE(rset->srs_rules,
288 rset->srs_nslot * sizeof(*rset->srs_rules));
291 rset->srs_rules = rules;
292 rset->srs_nslot = nslot;
295 EXPORT_SYMBOL(sptlrpc_rule_set_expand);
297 static inline int rule_spec_dir(struct sptlrpc_rule *rule)
299 return (rule->sr_from != LUSTRE_SP_ANY ||
300 rule->sr_to != LUSTRE_SP_ANY);
302 static inline int rule_spec_net(struct sptlrpc_rule *rule)
304 return (rule->sr_netid != LNET_NIDNET(LNET_NID_ANY));
306 static inline int rule_match_dir(struct sptlrpc_rule *r1,
307 struct sptlrpc_rule *r2)
309 return (r1->sr_from == r2->sr_from && r1->sr_to == r2->sr_to);
311 static inline int rule_match_net(struct sptlrpc_rule *r1,
312 struct sptlrpc_rule *r2)
314 return (r1->sr_netid == r2->sr_netid);
318 * merge @rule into @rset.
319 * the @rset slots might be expanded.
321 int sptlrpc_rule_set_merge(struct sptlrpc_rule_set *rset,
322 struct sptlrpc_rule *rule)
324 struct sptlrpc_rule *p = rset->srs_rules;
325 int spec_dir, spec_net;
326 int rc, n, match = 0;
330 spec_net = rule_spec_net(rule);
331 spec_dir = rule_spec_dir(rule);
333 for (n = 0; n < rset->srs_nrule; n++) {
334 p = &rset->srs_rules[n];
336 /* test network match, if failed:
337 * - spec rule: skip rules which is also spec rule match, until
338 * we hit a wild rule, which means no more chance
339 * - wild rule: skip until reach the one which is also wild
342 if (!rule_match_net(p, rule)) {
344 if (rule_spec_net(p))
353 /* test dir match, same logic as net matching */
354 if (!rule_match_dir(p, rule)) {
356 if (rule_spec_dir(p))
371 LASSERT(n >= 0 && n < rset->srs_nrule);
373 if (rule->sr_flvr.sf_rpc == SPTLRPC_FLVR_INVALID) {
374 /* remove this rule */
375 if (n < rset->srs_nrule - 1)
376 memmove(&rset->srs_rules[n],
377 &rset->srs_rules[n + 1],
378 (rset->srs_nrule - n - 1) *
382 /* override the rule */
383 memcpy(&rset->srs_rules[n], rule, sizeof(*rule));
386 LASSERT(n >= 0 && n <= rset->srs_nrule);
388 if (rule->sr_flvr.sf_rpc != SPTLRPC_FLVR_INVALID) {
389 rc = sptlrpc_rule_set_expand(rset);
393 if (n < rset->srs_nrule)
394 memmove(&rset->srs_rules[n + 1],
396 (rset->srs_nrule - n) * sizeof(*rule));
397 memcpy(&rset->srs_rules[n], rule, sizeof(*rule));
400 CDEBUG(D_CONFIG, "ignore the unmatched deletion\n");
406 EXPORT_SYMBOL(sptlrpc_rule_set_merge);
409 * given from/to/nid, determine a matching flavor in ruleset.
410 * return 1 if a match found, otherwise return 0.
412 int sptlrpc_rule_set_choose(struct sptlrpc_rule_set *rset,
413 enum lustre_sec_part from,
414 enum lustre_sec_part to,
416 struct sptlrpc_flavor *sf)
418 struct sptlrpc_rule *r;
421 for (n = 0; n < rset->srs_nrule; n++) {
422 r = &rset->srs_rules[n];
424 if (LNET_NIDNET(nid) != LNET_NIDNET(LNET_NID_ANY) &&
425 r->sr_netid != LNET_NIDNET(LNET_NID_ANY) &&
426 LNET_NIDNET(nid) != r->sr_netid)
429 if (from != LUSTRE_SP_ANY && r->sr_from != LUSTRE_SP_ANY &&
433 if (to != LUSTRE_SP_ANY && r->sr_to != LUSTRE_SP_ANY &&
443 EXPORT_SYMBOL(sptlrpc_rule_set_choose);
445 void sptlrpc_rule_set_dump(struct sptlrpc_rule_set *rset)
447 struct sptlrpc_rule *r;
450 for (n = 0; n < rset->srs_nrule; n++) {
451 r = &rset->srs_rules[n];
452 CDEBUG(D_SEC, "<%02d> from %x to %x, net %x, rpc %x\n", n,
453 r->sr_from, r->sr_to, r->sr_netid, r->sr_flvr.sf_rpc);
456 EXPORT_SYMBOL(sptlrpc_rule_set_dump);
458 static int sptlrpc_rule_set_extract(struct sptlrpc_rule_set *gen,
459 struct sptlrpc_rule_set *tgt,
460 enum lustre_sec_part from,
461 enum lustre_sec_part to,
462 struct sptlrpc_rule_set *rset)
464 struct sptlrpc_rule_set *src[2] = { gen, tgt };
465 struct sptlrpc_rule *rule;
470 /* merge general rules firstly, then target-specific rules */
471 for (i = 0; i < 2; i++) {
475 for (n = 0; n < src[i]->srs_nrule; n++) {
476 rule = &src[i]->srs_rules[n];
478 if (from != LUSTRE_SP_ANY &&
479 rule->sr_from != LUSTRE_SP_ANY &&
480 rule->sr_from != from)
482 if (to != LUSTRE_SP_ANY &&
483 rule->sr_to != LUSTRE_SP_ANY &&
487 rc = sptlrpc_rule_set_merge(rset, rule);
489 CERROR("can't merge: %d\n", rc);
498 /**********************************
499 * sptlrpc configuration support *
500 **********************************/
502 struct sptlrpc_conf_tgt {
504 char sct_name[MAX_OBD_NAME];
505 struct sptlrpc_rule_set sct_rset;
508 struct sptlrpc_conf {
510 char sc_fsname[MTI_NAME_MAXLEN];
511 unsigned int sc_modified; /* modified during updating */
512 unsigned int sc_updated:1, /* updated copy from MGS */
513 sc_local:1; /* local copy from target */
514 struct sptlrpc_rule_set sc_rset; /* fs general rules */
515 cfs_list_t sc_tgts; /* target-specific rules */
518 static struct mutex sptlrpc_conf_lock;
519 static CFS_LIST_HEAD(sptlrpc_confs);
521 static inline int is_hex(char c)
523 return ((c >= '0' && c <= '9') ||
524 (c >= 'a' && c <= 'f'));
527 static void target2fsname(const char *tgt, char *fsname, int buflen)
532 ptr = strrchr(tgt, '-');
534 if ((strncmp(ptr, "-MDT", 4) != 0 &&
535 strncmp(ptr, "-OST", 4) != 0) ||
536 !is_hex(ptr[4]) || !is_hex(ptr[5]) ||
537 !is_hex(ptr[6]) || !is_hex(ptr[7]))
541 /* if we didn't find the pattern, treat the whole string as fsname */
547 len = min(len, buflen - 1);
548 memcpy(fsname, tgt, len);
552 static void sptlrpc_conf_free_rsets(struct sptlrpc_conf *conf)
554 struct sptlrpc_conf_tgt *conf_tgt, *conf_tgt_next;
556 sptlrpc_rule_set_free(&conf->sc_rset);
558 cfs_list_for_each_entry_safe(conf_tgt, conf_tgt_next,
559 &conf->sc_tgts, sct_list) {
560 sptlrpc_rule_set_free(&conf_tgt->sct_rset);
561 cfs_list_del(&conf_tgt->sct_list);
562 OBD_FREE_PTR(conf_tgt);
564 LASSERT(cfs_list_empty(&conf->sc_tgts));
566 conf->sc_updated = 0;
570 static void sptlrpc_conf_free(struct sptlrpc_conf *conf)
572 CDEBUG(D_SEC, "free sptlrpc conf %s\n", conf->sc_fsname);
574 sptlrpc_conf_free_rsets(conf);
575 cfs_list_del(&conf->sc_list);
580 struct sptlrpc_conf_tgt *sptlrpc_conf_get_tgt(struct sptlrpc_conf *conf,
584 struct sptlrpc_conf_tgt *conf_tgt;
586 cfs_list_for_each_entry(conf_tgt, &conf->sc_tgts, sct_list) {
587 if (strcmp(conf_tgt->sct_name, name) == 0)
594 OBD_ALLOC_PTR(conf_tgt);
596 strncpy(conf_tgt->sct_name, name, sizeof(conf_tgt->sct_name));
597 sptlrpc_rule_set_init(&conf_tgt->sct_rset);
598 cfs_list_add(&conf_tgt->sct_list, &conf->sc_tgts);
605 struct sptlrpc_conf *sptlrpc_conf_get(const char *fsname,
608 struct sptlrpc_conf *conf;
610 cfs_list_for_each_entry(conf, &sptlrpc_confs, sc_list) {
611 if (strcmp(conf->sc_fsname, fsname) == 0)
622 strcpy(conf->sc_fsname, fsname);
623 sptlrpc_rule_set_init(&conf->sc_rset);
624 CFS_INIT_LIST_HEAD(&conf->sc_tgts);
625 cfs_list_add(&conf->sc_list, &sptlrpc_confs);
627 CDEBUG(D_SEC, "create sptlrpc conf %s\n", conf->sc_fsname);
632 * caller must hold conf_lock already.
634 static int sptlrpc_conf_merge_rule(struct sptlrpc_conf *conf,
636 struct sptlrpc_rule *rule)
638 struct sptlrpc_conf_tgt *conf_tgt;
639 struct sptlrpc_rule_set *rule_set;
641 /* fsname == target means general rules for the whole fs */
642 if (strcmp(conf->sc_fsname, target) == 0) {
643 rule_set = &conf->sc_rset;
645 conf_tgt = sptlrpc_conf_get_tgt(conf, target, 1);
647 rule_set = &conf_tgt->sct_rset;
649 CERROR("out of memory, can't merge rule!\n");
654 return sptlrpc_rule_set_merge(rule_set, rule);
658 * process one LCFG_SPTLRPC_CONF record. if \a conf is NULL, we
659 * find one through the target name in the record inside conf_lock;
660 * otherwise means caller already hold conf_lock.
662 static int __sptlrpc_process_config(struct lustre_cfg *lcfg,
663 struct sptlrpc_conf *conf)
665 char *target, *param;
666 char fsname[MTI_NAME_MAXLEN];
667 struct sptlrpc_rule rule;
671 target = lustre_cfg_string(lcfg, 1);
672 if (target == NULL) {
673 CERROR("missing target name\n");
677 param = lustre_cfg_string(lcfg, 2);
679 CERROR("missing parameter\n");
683 CDEBUG(D_SEC, "processing rule: %s.%s\n", target, param);
685 /* parse rule to make sure the format is correct */
686 if (strncmp(param, PARAM_SRPC_FLVR, sizeof(PARAM_SRPC_FLVR) - 1) != 0) {
687 CERROR("Invalid sptlrpc parameter: %s\n", param);
690 param += sizeof(PARAM_SRPC_FLVR) - 1;
692 rc = sptlrpc_parse_rule(param, &rule);
697 target2fsname(target, fsname, sizeof(fsname));
699 mutex_lock(&sptlrpc_conf_lock);
700 conf = sptlrpc_conf_get(fsname, 0);
702 CERROR("can't find conf\n");
705 rc = sptlrpc_conf_merge_rule(conf, target, &rule);
707 mutex_unlock(&sptlrpc_conf_lock);
709 LASSERT(mutex_is_locked(&sptlrpc_conf_lock));
710 rc = sptlrpc_conf_merge_rule(conf, target, &rule);
719 int sptlrpc_process_config(struct lustre_cfg *lcfg)
721 return __sptlrpc_process_config(lcfg, NULL);
723 EXPORT_SYMBOL(sptlrpc_process_config);
725 static int logname2fsname(const char *logname, char *buf, int buflen)
730 ptr = strrchr(logname, '-');
731 if (ptr == NULL || strcmp(ptr, "-sptlrpc")) {
732 CERROR("%s is not a sptlrpc config log\n", logname);
736 len = min((int) (ptr - logname), buflen - 1);
738 memcpy(buf, logname, len);
743 void sptlrpc_conf_log_update_begin(const char *logname)
745 struct sptlrpc_conf *conf;
748 if (logname2fsname(logname, fsname, sizeof(fsname)))
751 mutex_lock(&sptlrpc_conf_lock);
753 conf = sptlrpc_conf_get(fsname, 0);
754 if (conf && conf->sc_local) {
755 LASSERT(conf->sc_updated == 0);
756 sptlrpc_conf_free_rsets(conf);
758 conf->sc_modified = 0;
760 mutex_unlock(&sptlrpc_conf_lock);
762 EXPORT_SYMBOL(sptlrpc_conf_log_update_begin);
765 * mark a config log has been updated
767 void sptlrpc_conf_log_update_end(const char *logname)
769 struct sptlrpc_conf *conf;
772 if (logname2fsname(logname, fsname, sizeof(fsname)))
775 mutex_lock(&sptlrpc_conf_lock);
777 conf = sptlrpc_conf_get(fsname, 0);
780 * if original state is not updated, make sure the
781 * modified counter > 0 to enforce updating local copy.
783 if (conf->sc_updated == 0)
786 conf->sc_updated = 1;
789 mutex_unlock(&sptlrpc_conf_lock);
791 EXPORT_SYMBOL(sptlrpc_conf_log_update_end);
793 void sptlrpc_conf_log_start(const char *logname)
797 if (logname2fsname(logname, fsname, sizeof(fsname)))
800 mutex_lock(&sptlrpc_conf_lock);
801 sptlrpc_conf_get(fsname, 1);
802 mutex_unlock(&sptlrpc_conf_lock);
804 EXPORT_SYMBOL(sptlrpc_conf_log_start);
806 void sptlrpc_conf_log_stop(const char *logname)
808 struct sptlrpc_conf *conf;
811 if (logname2fsname(logname, fsname, sizeof(fsname)))
814 mutex_lock(&sptlrpc_conf_lock);
815 conf = sptlrpc_conf_get(fsname, 0);
817 sptlrpc_conf_free(conf);
818 mutex_unlock(&sptlrpc_conf_lock);
820 EXPORT_SYMBOL(sptlrpc_conf_log_stop);
822 static void inline flavor_set_flags(struct sptlrpc_flavor *sf,
823 enum lustre_sec_part from,
824 enum lustre_sec_part to,
825 unsigned int fl_udesc)
828 * null flavor doesn't need to set any flavor, and in fact
829 * we'd better not do that because everybody share a single sec.
831 if (sf->sf_rpc == SPTLRPC_FLVR_NULL)
834 if (from == LUSTRE_SP_MDT) {
835 /* MDT->MDT; MDT->OST */
836 sf->sf_flags |= PTLRPC_SEC_FL_ROOTONLY;
837 } else if (from == LUSTRE_SP_CLI && to == LUSTRE_SP_OST) {
839 sf->sf_flags |= PTLRPC_SEC_FL_ROOTONLY | PTLRPC_SEC_FL_BULK;
840 } else if (from == LUSTRE_SP_CLI && to == LUSTRE_SP_MDT) {
842 if (fl_udesc && sf->sf_rpc != SPTLRPC_FLVR_NULL)
843 sf->sf_flags |= PTLRPC_SEC_FL_UDESC;
847 void sptlrpc_conf_choose_flavor(enum lustre_sec_part from,
848 enum lustre_sec_part to,
849 struct obd_uuid *target,
851 struct sptlrpc_flavor *sf)
853 struct sptlrpc_conf *conf;
854 struct sptlrpc_conf_tgt *conf_tgt;
855 char name[MTI_NAME_MAXLEN];
858 target2fsname(target->uuid, name, sizeof(name));
860 mutex_lock(&sptlrpc_conf_lock);
862 conf = sptlrpc_conf_get(name, 0);
866 /* convert uuid name (supposed end with _UUID) to target name */
867 len = strlen(target->uuid);
869 memcpy(name, target->uuid, len - 5);
870 name[len - 5] = '\0';
872 conf_tgt = sptlrpc_conf_get_tgt(conf, name, 0);
874 rc = sptlrpc_rule_set_choose(&conf_tgt->sct_rset,
880 rc = sptlrpc_rule_set_choose(&conf->sc_rset, from, to, nid, sf);
882 mutex_unlock(&sptlrpc_conf_lock);
885 get_default_flavor(sf);
887 flavor_set_flags(sf, from, to, 1);
891 * called by target devices, determine the expected flavor from
892 * certain peer (from, nid).
894 void sptlrpc_target_choose_flavor(struct sptlrpc_rule_set *rset,
895 enum lustre_sec_part from,
897 struct sptlrpc_flavor *sf)
899 if (sptlrpc_rule_set_choose(rset, from, LUSTRE_SP_ANY, nid, sf) == 0)
900 get_default_flavor(sf);
902 EXPORT_SYMBOL(sptlrpc_target_choose_flavor);
904 #define SEC_ADAPT_DELAY (10)
907 * called by client devices, notify the sptlrpc config has changed and
908 * do import_sec_adapt later.
910 void sptlrpc_conf_client_adapt(struct obd_device *obd)
912 struct obd_import *imp;
915 LASSERT(strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) == 0 ||
916 strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME) ==0);
917 CDEBUG(D_SEC, "obd %s\n", obd->u.cli.cl_target_uuid.uuid);
919 /* serialize with connect/disconnect import */
920 down_read(&obd->u.cli.cl_sem);
922 imp = obd->u.cli.cl_import;
924 spin_lock(&imp->imp_lock);
926 imp->imp_sec_expire = cfs_time_current_sec() +
928 spin_unlock(&imp->imp_lock);
931 up_read(&obd->u.cli.cl_sem);
934 EXPORT_SYMBOL(sptlrpc_conf_client_adapt);
938 static void rule2string(struct sptlrpc_rule *r, char *buf, int buflen)
944 if (r->sr_netid == LNET_NIDNET(LNET_NID_ANY))
947 net = libcfs_net2str(r->sr_netid);
949 if (r->sr_from == LUSTRE_SP_ANY && r->sr_to == LUSTRE_SP_ANY)
952 snprintf(dirbuf, sizeof(dirbuf), ".%s2%s",
953 sptlrpc_part2name(r->sr_from),
954 sptlrpc_part2name(r->sr_to));
956 ptr += snprintf(buf, buflen, "srpc.flavor.%s%s=", net, dirbuf);
958 sptlrpc_flavor2name(&r->sr_flvr, ptr, buflen - (ptr - buf));
959 buf[buflen - 1] = '\0';
962 static int sptlrpc_record_rule_set(struct llog_handle *llh,
964 struct sptlrpc_rule_set *rset)
966 struct lustre_cfg_bufs bufs;
967 struct lustre_cfg *lcfg;
968 struct llog_rec_hdr rec;
973 for (i = 0; i < rset->srs_nrule; i++) {
974 rule2string(&rset->srs_rules[i], param, sizeof(param));
976 lustre_cfg_bufs_reset(&bufs, NULL);
977 lustre_cfg_bufs_set_string(&bufs, 1, target);
978 lustre_cfg_bufs_set_string(&bufs, 2, param);
979 lcfg = lustre_cfg_new(LCFG_SPTLRPC_CONF, &bufs);
982 buflen = lustre_cfg_len(lcfg->lcfg_bufcount,
984 rec.lrh_len = llog_data_len(buflen);
985 rec.lrh_type = OBD_CFG_REC;
986 rc = llog_write(NULL, llh, &rec, NULL, 0, (void *)lcfg, -1);
988 CERROR("failed to write a rec: rc = %d\n", rc);
989 lustre_cfg_free(lcfg);
994 static int sptlrpc_record_rules(struct llog_handle *llh,
995 struct sptlrpc_conf *conf)
997 struct sptlrpc_conf_tgt *conf_tgt;
999 sptlrpc_record_rule_set(llh, conf->sc_fsname, &conf->sc_rset);
1001 cfs_list_for_each_entry(conf_tgt, &conf->sc_tgts, sct_list) {
1002 sptlrpc_record_rule_set(llh, conf_tgt->sct_name,
1003 &conf_tgt->sct_rset);
1008 #define LOG_SPTLRPC_TMP "sptlrpc.tmp"
1009 #define LOG_SPTLRPC "sptlrpc"
1012 int sptlrpc_target_local_copy_conf(struct obd_device *obd,
1013 struct sptlrpc_conf *conf)
1015 struct llog_handle *llh = NULL;
1016 struct llog_ctxt *ctxt;
1017 struct lvfs_run_ctxt saved;
1018 struct dentry *dentry;
1022 ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
1026 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
1028 dentry = ll_lookup_one_len(MOUNT_CONFIGS_DIR, cfs_fs_pwd(current->fs),
1029 strlen(MOUNT_CONFIGS_DIR));
1030 if (IS_ERR(dentry)) {
1031 rc = PTR_ERR(dentry);
1032 CERROR("cannot lookup %s directory: rc = %d\n",
1033 MOUNT_CONFIGS_DIR, rc);
1037 /* erase the old tmp log */
1038 rc = llog_erase(NULL, ctxt, NULL, LOG_SPTLRPC_TMP);
1039 if (rc < 0 && rc != -ENOENT) {
1040 CERROR("%s: cannot erase temporary sptlrpc log: rc = %d\n",
1045 /* write temporary log */
1046 rc = llog_open_create(NULL, ctxt, &llh, NULL, LOG_SPTLRPC_TMP);
1049 rc = llog_init_handle(NULL, llh, LLOG_F_IS_PLAIN, NULL);
1051 GOTO(out_close, rc);
1053 rc = sptlrpc_record_rules(llh, conf);
1056 llog_close(NULL, llh);
1058 rc = lustre_rename(dentry, obd->obd_lvfs_ctxt.pwdmnt,
1059 LOG_SPTLRPC_TMP, LOG_SPTLRPC);
1063 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
1064 llog_ctxt_put(ctxt);
1065 CDEBUG(D_SEC, "target %s: write local sptlrpc conf: rc = %d\n",
1070 static int local_read_handler(const struct lu_env *env,
1071 struct llog_handle *llh,
1072 struct llog_rec_hdr *rec, void *data)
1074 struct sptlrpc_conf *conf = (struct sptlrpc_conf *) data;
1075 struct lustre_cfg *lcfg = (struct lustre_cfg *)(rec + 1);
1079 if (rec->lrh_type != OBD_CFG_REC) {
1080 CERROR("unhandled lrh_type: %#x\n", rec->lrh_type);
1084 cfg_len = rec->lrh_len - sizeof(struct llog_rec_hdr) -
1085 sizeof(struct llog_rec_tail);
1087 rc = lustre_cfg_sanity_check(lcfg, cfg_len);
1089 CERROR("Insane cfg\n");
1093 if (lcfg->lcfg_command != LCFG_SPTLRPC_CONF) {
1094 CERROR("invalid command (%x)\n", lcfg->lcfg_command);
1098 RETURN(__sptlrpc_process_config(lcfg, conf));
1102 int sptlrpc_target_local_read_conf(struct obd_device *obd,
1103 struct sptlrpc_conf *conf)
1105 struct llog_handle *llh = NULL;
1106 struct llog_ctxt *ctxt;
1107 struct lvfs_run_ctxt saved;
1111 LASSERT(conf->sc_updated == 0 && conf->sc_local == 0);
1113 ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
1115 CERROR("missing llog context\n");
1119 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
1121 rc = llog_open(NULL, ctxt, &llh, NULL, LOG_SPTLRPC, LLOG_OPEN_EXISTS);
1128 rc = llog_init_handle(NULL, llh, LLOG_F_IS_PLAIN, NULL);
1130 GOTO(out_close, rc);
1132 if (llog_get_size(llh) <= 1) {
1133 CDEBUG(D_SEC, "no local sptlrpc copy found\n");
1134 GOTO(out_close, rc = 0);
1137 rc = llog_process(NULL, llh, local_read_handler, (void *)conf, NULL);
1142 sptlrpc_conf_free_rsets(conf);
1146 llog_close(NULL, llh);
1148 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
1149 llog_ctxt_put(ctxt);
1150 CDEBUG(D_SEC, "target %s: read local sptlrpc conf: rc = %d\n",
1155 #endif /* __KRENEL__ */
1158 * called by target devices, extract sptlrpc rules which applies to
1159 * this target, to be used for future rpc flavor checking.
1161 int sptlrpc_conf_target_get_rules(struct obd_device *obd,
1162 struct sptlrpc_rule_set *rset,
1165 struct sptlrpc_conf *conf;
1166 struct sptlrpc_conf_tgt *conf_tgt;
1167 enum lustre_sec_part sp_dst;
1168 char fsname[MTI_NAME_MAXLEN];
1172 if (strcmp(obd->obd_type->typ_name, LUSTRE_MDT_NAME) == 0) {
1173 sp_dst = LUSTRE_SP_MDT;
1174 } else if (strcmp(obd->obd_type->typ_name, LUSTRE_OST_NAME) == 0) {
1175 sp_dst = LUSTRE_SP_OST;
1177 CERROR("unexpected obd type %s\n", obd->obd_type->typ_name);
1180 CDEBUG(D_SEC, "get rules for target %s\n", obd->obd_uuid.uuid);
1182 target2fsname(obd->obd_uuid.uuid, fsname, sizeof(fsname));
1184 mutex_lock(&sptlrpc_conf_lock);
1186 conf = sptlrpc_conf_get(fsname, 0);
1188 CERROR("missing sptlrpc config log\n");
1193 if (conf->sc_updated == 0) {
1195 * always read from local copy. here another option is
1196 * if we already have a local copy (read from another
1197 * target device hosted on the same node) we simply use that.
1200 sptlrpc_conf_free_rsets(conf);
1202 sptlrpc_target_local_read_conf(obd, conf);
1204 LASSERT(conf->sc_local == 0);
1206 /* write a local copy */
1207 if (initial || conf->sc_modified)
1208 sptlrpc_target_local_copy_conf(obd, conf);
1210 CDEBUG(D_SEC, "unchanged, skip updating local copy\n");
1214 /* extract rule set for this target */
1215 conf_tgt = sptlrpc_conf_get_tgt(conf, obd->obd_name, 0);
1217 rc = sptlrpc_rule_set_extract(&conf->sc_rset,
1218 conf_tgt ? &conf_tgt->sct_rset: NULL,
1219 LUSTRE_SP_ANY, sp_dst, rset);
1221 mutex_unlock(&sptlrpc_conf_lock);
1224 EXPORT_SYMBOL(sptlrpc_conf_target_get_rules);
1226 int sptlrpc_conf_init(void)
1228 mutex_init(&sptlrpc_conf_lock);
1232 void sptlrpc_conf_fini(void)
1234 struct sptlrpc_conf *conf, *conf_next;
1236 mutex_lock(&sptlrpc_conf_lock);
1237 cfs_list_for_each_entry_safe(conf, conf_next, &sptlrpc_confs, sc_list) {
1238 sptlrpc_conf_free(conf);
1240 LASSERT(cfs_list_empty(&sptlrpc_confs));
1241 mutex_unlock(&sptlrpc_conf_lock);