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, 2012, Intel Corporation.
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>
40 #include <linux/crypto.h>
41 #include <linux/key.h>
44 #include <obd_class.h>
45 #include <obd_support.h>
46 #include <lustre_net.h>
47 #include <lustre_import.h>
48 #include <lustre_log.h>
49 #include <lustre_disk.h>
50 #include <lustre_dlm.h>
51 #include <lustre_param.h>
52 #include <lustre_sec.h>
54 #include "ptlrpc_internal.h"
56 const char *sptlrpc_part2name(enum lustre_sec_part part)
75 EXPORT_SYMBOL(sptlrpc_part2name);
77 enum lustre_sec_part sptlrpc_target_sec_part(struct obd_device *obd)
79 const char *type = obd->obd_type->typ_name;
81 if (!strcmp(type, LUSTRE_MDT_NAME))
83 if (!strcmp(type, LUSTRE_OST_NAME))
85 if (!strcmp(type, LUSTRE_MGS_NAME))
88 CERROR("unknown target %p(%s)\n", obd, type);
91 EXPORT_SYMBOL(sptlrpc_target_sec_part);
93 /****************************************
94 * user supplied flavor string parsing *
95 ****************************************/
98 * format: <base_flavor>[-<bulk_type:alg_spec>]
100 int sptlrpc_parse_flavor(const char *str, struct sptlrpc_flavor *flvr)
105 memset(flvr, 0, sizeof(*flvr));
107 if (str == NULL || str[0] == '\0') {
108 flvr->sf_rpc = SPTLRPC_FLVR_INVALID;
112 strlcpy(buf, str, sizeof(buf));
114 bulk = strchr(buf, '-');
118 flvr->sf_rpc = sptlrpc_name2flavor_base(buf);
119 if (flvr->sf_rpc == SPTLRPC_FLVR_INVALID)
123 * currently only base flavor "plain" can have bulk specification.
125 if (flvr->sf_rpc == SPTLRPC_FLVR_PLAIN) {
126 flvr->u_bulk.hash.hash_alg = BULK_HASH_ALG_ADLER32;
129 * format: plain-hash:<hash_alg>
131 alg = strchr(bulk, ':');
136 if (strcmp(bulk, "hash"))
139 flvr->u_bulk.hash.hash_alg = sptlrpc_get_hash_alg(alg);
140 if (flvr->u_bulk.hash.hash_alg >= BULK_HASH_ALG_MAX)
144 if (flvr->u_bulk.hash.hash_alg == BULK_HASH_ALG_NULL)
145 flvr_set_bulk_svc(&flvr->sf_rpc, SPTLRPC_BULK_SVC_NULL);
147 flvr_set_bulk_svc(&flvr->sf_rpc, SPTLRPC_BULK_SVC_INTG);
157 CERROR("invalid flavor string: %s\n", str);
160 EXPORT_SYMBOL(sptlrpc_parse_flavor);
162 /****************************************
164 ****************************************/
166 static void get_default_flavor(struct sptlrpc_flavor *sf)
168 memset(sf, 0, sizeof(*sf));
170 sf->sf_rpc = SPTLRPC_FLVR_NULL;
174 static void sptlrpc_rule_init(struct sptlrpc_rule *rule)
176 rule->sr_netid = LNET_NIDNET(LNET_NID_ANY);
177 rule->sr_from = LUSTRE_SP_ANY;
178 rule->sr_to = LUSTRE_SP_ANY;
179 rule->sr_padding = 0;
181 get_default_flavor(&rule->sr_flvr);
185 * format: network[.direction]=flavor
187 int sptlrpc_parse_rule(char *param, struct sptlrpc_rule *rule)
192 sptlrpc_rule_init(rule);
194 flavor = strchr(param, '=');
195 if (flavor == NULL) {
196 CERROR("invalid param, no '='\n");
201 dir = strchr(param, '.');
206 if (strcmp(param, "default")) {
207 rule->sr_netid = libcfs_str2net(param);
208 if (rule->sr_netid == LNET_NIDNET(LNET_NID_ANY)) {
209 CERROR("invalid network name: %s\n", param);
216 if (!strcmp(dir, "mdt2ost")) {
217 rule->sr_from = LUSTRE_SP_MDT;
218 rule->sr_to = LUSTRE_SP_OST;
219 } else if (!strcmp(dir, "mdt2mdt")) {
220 rule->sr_from = LUSTRE_SP_MDT;
221 rule->sr_to = LUSTRE_SP_MDT;
222 } else if (!strcmp(dir, "cli2ost")) {
223 rule->sr_from = LUSTRE_SP_CLI;
224 rule->sr_to = LUSTRE_SP_OST;
225 } else if (!strcmp(dir, "cli2mdt")) {
226 rule->sr_from = LUSTRE_SP_CLI;
227 rule->sr_to = LUSTRE_SP_MDT;
229 CERROR("invalid rule dir segment: %s\n", dir);
235 rc = sptlrpc_parse_flavor(flavor, &rule->sr_flvr);
241 EXPORT_SYMBOL(sptlrpc_parse_rule);
243 void sptlrpc_rule_set_free(struct sptlrpc_rule_set *rset)
245 LASSERT(rset->srs_nslot ||
246 (rset->srs_nrule == 0 && rset->srs_rules == NULL));
248 if (rset->srs_nslot) {
249 OBD_FREE(rset->srs_rules,
250 rset->srs_nslot * sizeof(*rset->srs_rules));
251 sptlrpc_rule_set_init(rset);
254 EXPORT_SYMBOL(sptlrpc_rule_set_free);
257 * return 0 if the rule set could accomodate one more rule.
259 int sptlrpc_rule_set_expand(struct sptlrpc_rule_set *rset)
261 struct sptlrpc_rule *rules;
266 if (rset->srs_nrule < rset->srs_nslot)
269 nslot = rset->srs_nslot + 8;
271 /* better use realloc() if available */
272 OBD_ALLOC(rules, nslot * sizeof(*rset->srs_rules));
276 if (rset->srs_nrule) {
277 LASSERT(rset->srs_nslot && rset->srs_rules);
278 memcpy(rules, rset->srs_rules,
279 rset->srs_nrule * sizeof(*rset->srs_rules));
281 OBD_FREE(rset->srs_rules,
282 rset->srs_nslot * sizeof(*rset->srs_rules));
285 rset->srs_rules = rules;
286 rset->srs_nslot = nslot;
289 EXPORT_SYMBOL(sptlrpc_rule_set_expand);
291 static inline int rule_spec_dir(struct sptlrpc_rule *rule)
293 return (rule->sr_from != LUSTRE_SP_ANY ||
294 rule->sr_to != LUSTRE_SP_ANY);
296 static inline int rule_spec_net(struct sptlrpc_rule *rule)
298 return (rule->sr_netid != LNET_NIDNET(LNET_NID_ANY));
300 static inline int rule_match_dir(struct sptlrpc_rule *r1,
301 struct sptlrpc_rule *r2)
303 return (r1->sr_from == r2->sr_from && r1->sr_to == r2->sr_to);
305 static inline int rule_match_net(struct sptlrpc_rule *r1,
306 struct sptlrpc_rule *r2)
308 return (r1->sr_netid == r2->sr_netid);
312 * merge @rule into @rset.
313 * the @rset slots might be expanded.
315 int sptlrpc_rule_set_merge(struct sptlrpc_rule_set *rset,
316 struct sptlrpc_rule *rule)
318 struct sptlrpc_rule *p = rset->srs_rules;
319 int spec_dir, spec_net;
320 int rc, n, match = 0;
324 spec_net = rule_spec_net(rule);
325 spec_dir = rule_spec_dir(rule);
327 for (n = 0; n < rset->srs_nrule; n++) {
328 p = &rset->srs_rules[n];
330 /* test network match, if failed:
331 * - spec rule: skip rules which is also spec rule match, until
332 * we hit a wild rule, which means no more chance
333 * - wild rule: skip until reach the one which is also wild
336 if (!rule_match_net(p, rule)) {
338 if (rule_spec_net(p))
347 /* test dir match, same logic as net matching */
348 if (!rule_match_dir(p, rule)) {
350 if (rule_spec_dir(p))
365 LASSERT(n >= 0 && n < rset->srs_nrule);
367 if (rule->sr_flvr.sf_rpc == SPTLRPC_FLVR_INVALID) {
368 /* remove this rule */
369 if (n < rset->srs_nrule - 1)
370 memmove(&rset->srs_rules[n],
371 &rset->srs_rules[n + 1],
372 (rset->srs_nrule - n - 1) *
376 /* override the rule */
377 memcpy(&rset->srs_rules[n], rule, sizeof(*rule));
380 LASSERT(n >= 0 && n <= rset->srs_nrule);
382 if (rule->sr_flvr.sf_rpc != SPTLRPC_FLVR_INVALID) {
383 rc = sptlrpc_rule_set_expand(rset);
387 if (n < rset->srs_nrule)
388 memmove(&rset->srs_rules[n + 1],
390 (rset->srs_nrule - n) * sizeof(*rule));
391 memcpy(&rset->srs_rules[n], rule, sizeof(*rule));
394 CDEBUG(D_CONFIG, "ignore the unmatched deletion\n");
400 EXPORT_SYMBOL(sptlrpc_rule_set_merge);
403 * given from/to/nid, determine a matching flavor in ruleset.
404 * return 1 if a match found, otherwise return 0.
406 int sptlrpc_rule_set_choose(struct sptlrpc_rule_set *rset,
407 enum lustre_sec_part from,
408 enum lustre_sec_part to,
410 struct sptlrpc_flavor *sf)
412 struct sptlrpc_rule *r;
415 for (n = 0; n < rset->srs_nrule; n++) {
416 r = &rset->srs_rules[n];
418 if (LNET_NIDNET(nid) != LNET_NIDNET(LNET_NID_ANY) &&
419 r->sr_netid != LNET_NIDNET(LNET_NID_ANY) &&
420 LNET_NIDNET(nid) != r->sr_netid)
423 if (from != LUSTRE_SP_ANY && r->sr_from != LUSTRE_SP_ANY &&
427 if (to != LUSTRE_SP_ANY && r->sr_to != LUSTRE_SP_ANY &&
437 EXPORT_SYMBOL(sptlrpc_rule_set_choose);
439 void sptlrpc_rule_set_dump(struct sptlrpc_rule_set *rset)
441 struct sptlrpc_rule *r;
444 for (n = 0; n < rset->srs_nrule; n++) {
445 r = &rset->srs_rules[n];
446 CDEBUG(D_SEC, "<%02d> from %x to %x, net %x, rpc %x\n", n,
447 r->sr_from, r->sr_to, r->sr_netid, r->sr_flvr.sf_rpc);
450 EXPORT_SYMBOL(sptlrpc_rule_set_dump);
452 static int sptlrpc_rule_set_extract(struct sptlrpc_rule_set *gen,
453 struct sptlrpc_rule_set *tgt,
454 enum lustre_sec_part from,
455 enum lustre_sec_part to,
456 struct sptlrpc_rule_set *rset)
458 struct sptlrpc_rule_set *src[2] = { gen, tgt };
459 struct sptlrpc_rule *rule;
464 /* merge general rules firstly, then target-specific rules */
465 for (i = 0; i < 2; i++) {
469 for (n = 0; n < src[i]->srs_nrule; n++) {
470 rule = &src[i]->srs_rules[n];
472 if (from != LUSTRE_SP_ANY &&
473 rule->sr_from != LUSTRE_SP_ANY &&
474 rule->sr_from != from)
476 if (to != LUSTRE_SP_ANY &&
477 rule->sr_to != LUSTRE_SP_ANY &&
481 rc = sptlrpc_rule_set_merge(rset, rule);
483 CERROR("can't merge: %d\n", rc);
492 /**********************************
493 * sptlrpc configuration support *
494 **********************************/
496 struct sptlrpc_conf_tgt {
497 struct list_head sct_list;
498 char sct_name[MAX_OBD_NAME];
499 struct sptlrpc_rule_set sct_rset;
502 struct sptlrpc_conf {
503 struct list_head sc_list;
504 char sc_fsname[MTI_NAME_MAXLEN];
505 unsigned int sc_modified; /* modified during updating */
506 unsigned int sc_updated:1, /* updated copy from MGS */
507 sc_local:1; /* local copy from target */
508 struct sptlrpc_rule_set sc_rset; /* fs general rules */
509 struct list_head sc_tgts; /* target-specific rules */
512 static struct mutex sptlrpc_conf_lock;
513 static struct list_head sptlrpc_confs;
515 static inline int is_hex(char c)
517 return ((c >= '0' && c <= '9') ||
518 (c >= 'a' && c <= 'f'));
521 static void target2fsname(const char *tgt, char *fsname, int buflen)
526 ptr = strrchr(tgt, '-');
528 if ((strncmp(ptr, "-MDT", 4) != 0 &&
529 strncmp(ptr, "-OST", 4) != 0) ||
530 !is_hex(ptr[4]) || !is_hex(ptr[5]) ||
531 !is_hex(ptr[6]) || !is_hex(ptr[7]))
535 /* if we didn't find the pattern, treat the whole string as fsname */
541 len = min(len, buflen - 1);
542 memcpy(fsname, tgt, len);
546 static void sptlrpc_conf_free_rsets(struct sptlrpc_conf *conf)
548 struct sptlrpc_conf_tgt *conf_tgt, *conf_tgt_next;
550 sptlrpc_rule_set_free(&conf->sc_rset);
552 list_for_each_entry_safe(conf_tgt, conf_tgt_next,
553 &conf->sc_tgts, sct_list) {
554 sptlrpc_rule_set_free(&conf_tgt->sct_rset);
555 list_del(&conf_tgt->sct_list);
556 OBD_FREE_PTR(conf_tgt);
558 LASSERT(list_empty(&conf->sc_tgts));
560 conf->sc_updated = 0;
564 static void sptlrpc_conf_free(struct sptlrpc_conf *conf)
566 CDEBUG(D_SEC, "free sptlrpc conf %s\n", conf->sc_fsname);
568 sptlrpc_conf_free_rsets(conf);
569 list_del(&conf->sc_list);
574 struct sptlrpc_conf_tgt *sptlrpc_conf_get_tgt(struct sptlrpc_conf *conf,
578 struct sptlrpc_conf_tgt *conf_tgt;
580 list_for_each_entry(conf_tgt, &conf->sc_tgts, sct_list) {
581 if (strcmp(conf_tgt->sct_name, name) == 0)
588 OBD_ALLOC_PTR(conf_tgt);
590 strlcpy(conf_tgt->sct_name, name, sizeof(conf_tgt->sct_name));
591 sptlrpc_rule_set_init(&conf_tgt->sct_rset);
592 list_add(&conf_tgt->sct_list, &conf->sc_tgts);
599 struct sptlrpc_conf *sptlrpc_conf_get(const char *fsname,
602 struct sptlrpc_conf *conf;
604 list_for_each_entry(conf, &sptlrpc_confs, sc_list) {
605 if (strcmp(conf->sc_fsname, fsname) == 0)
616 if (strlcpy(conf->sc_fsname, fsname, sizeof(conf->sc_fsname)) >=
617 sizeof(conf->sc_fsname)) {
621 sptlrpc_rule_set_init(&conf->sc_rset);
622 INIT_LIST_HEAD(&conf->sc_tgts);
623 list_add(&conf->sc_list, &sptlrpc_confs);
625 CDEBUG(D_SEC, "create sptlrpc conf %s\n", conf->sc_fsname);
630 * caller must hold conf_lock already.
632 static int sptlrpc_conf_merge_rule(struct sptlrpc_conf *conf,
634 struct sptlrpc_rule *rule)
636 struct sptlrpc_conf_tgt *conf_tgt;
637 struct sptlrpc_rule_set *rule_set;
639 /* fsname == target means general rules for the whole fs */
640 if (strcmp(conf->sc_fsname, target) == 0) {
641 rule_set = &conf->sc_rset;
643 conf_tgt = sptlrpc_conf_get_tgt(conf, target, 1);
645 rule_set = &conf_tgt->sct_rset;
647 CERROR("out of memory, can't merge rule!\n");
652 return sptlrpc_rule_set_merge(rule_set, rule);
656 * process one LCFG_SPTLRPC_CONF record. if \a conf is NULL, we
657 * find one through the target name in the record inside conf_lock;
658 * otherwise means caller already hold conf_lock.
660 static int __sptlrpc_process_config(struct lustre_cfg *lcfg,
661 struct sptlrpc_conf *conf)
663 char *target, *param;
664 char fsname[MTI_NAME_MAXLEN];
665 struct sptlrpc_rule rule;
669 target = lustre_cfg_string(lcfg, 1);
670 if (target == NULL) {
671 CERROR("missing target name\n");
675 param = lustre_cfg_string(lcfg, 2);
677 CERROR("missing parameter\n");
681 CDEBUG(D_SEC, "processing rule: %s.%s\n", target, param);
683 /* parse rule to make sure the format is correct */
684 if (strncmp(param, PARAM_SRPC_FLVR, sizeof(PARAM_SRPC_FLVR) - 1) != 0) {
685 CERROR("Invalid sptlrpc parameter: %s\n", param);
688 param += sizeof(PARAM_SRPC_FLVR) - 1;
690 rc = sptlrpc_parse_rule(param, &rule);
695 target2fsname(target, fsname, sizeof(fsname));
697 mutex_lock(&sptlrpc_conf_lock);
698 conf = sptlrpc_conf_get(fsname, 0);
700 CERROR("can't find conf\n");
703 rc = sptlrpc_conf_merge_rule(conf, target, &rule);
705 mutex_unlock(&sptlrpc_conf_lock);
707 LASSERT(mutex_is_locked(&sptlrpc_conf_lock));
708 rc = sptlrpc_conf_merge_rule(conf, target, &rule);
717 int sptlrpc_process_config(struct lustre_cfg *lcfg)
719 return __sptlrpc_process_config(lcfg, NULL);
721 EXPORT_SYMBOL(sptlrpc_process_config);
723 static int logname2fsname(const char *logname, char *buf, int buflen)
728 ptr = strrchr(logname, '-');
729 if (ptr == NULL || strcmp(ptr, "-sptlrpc")) {
730 CERROR("%s is not a sptlrpc config log\n", logname);
734 len = min((int) (ptr - logname), buflen - 1);
736 memcpy(buf, logname, len);
741 void sptlrpc_conf_log_update_begin(const char *logname)
743 struct sptlrpc_conf *conf;
746 if (logname2fsname(logname, fsname, sizeof(fsname)))
749 mutex_lock(&sptlrpc_conf_lock);
751 conf = sptlrpc_conf_get(fsname, 0);
753 if (conf->sc_local) {
754 LASSERT(conf->sc_updated == 0);
755 sptlrpc_conf_free_rsets(conf);
757 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);
937 static void rule2string(struct sptlrpc_rule *r, char *buf, int buflen)
943 if (r->sr_netid == LNET_NIDNET(LNET_NID_ANY))
946 net = libcfs_net2str(r->sr_netid);
948 if (r->sr_from == LUSTRE_SP_ANY && r->sr_to == LUSTRE_SP_ANY)
951 snprintf(dirbuf, sizeof(dirbuf), ".%s2%s",
952 sptlrpc_part2name(r->sr_from),
953 sptlrpc_part2name(r->sr_to));
955 ptr += snprintf(buf, buflen, "srpc.flavor.%s%s=", net, dirbuf);
957 sptlrpc_flavor2name(&r->sr_flvr, ptr, buflen - (ptr - buf));
958 buf[buflen - 1] = '\0';
961 static int sptlrpc_record_rule_set(struct llog_handle *llh,
963 struct sptlrpc_rule_set *rset)
965 struct llog_cfg_rec *lcr;
966 struct lustre_cfg_bufs bufs;
970 for (i = 0; i < rset->srs_nrule; i++) {
971 rule2string(&rset->srs_rules[i], param, sizeof(param));
973 lustre_cfg_bufs_reset(&bufs, NULL);
974 lustre_cfg_bufs_set_string(&bufs, 1, target);
975 lustre_cfg_bufs_set_string(&bufs, 2, param);
976 lcr = lustre_cfg_rec_new(LCFG_SPTLRPC_CONF, &bufs);
979 rc = llog_write(NULL, llh, &lcr->lcr_hdr, LLOG_NEXT_IDX);
980 lustre_cfg_rec_free(lcr);
987 static int sptlrpc_record_rules(struct llog_handle *llh,
988 struct sptlrpc_conf *conf)
990 struct sptlrpc_conf_tgt *conf_tgt;
992 sptlrpc_record_rule_set(llh, conf->sc_fsname, &conf->sc_rset);
994 list_for_each_entry(conf_tgt, &conf->sc_tgts, sct_list) {
995 sptlrpc_record_rule_set(llh, conf_tgt->sct_name,
996 &conf_tgt->sct_rset);
1001 #define LOG_SPTLRPC_TMP "sptlrpc.tmp"
1002 #define LOG_SPTLRPC "sptlrpc"
1005 int sptlrpc_target_local_copy_conf(struct obd_device *obd,
1006 struct sptlrpc_conf *conf)
1008 struct llog_handle *llh = NULL;
1009 struct llog_ctxt *ctxt;
1010 struct lvfs_run_ctxt saved;
1011 struct dentry *dentry;
1015 ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
1019 push_ctxt(&saved, &obd->obd_lvfs_ctxt);
1021 dentry = ll_lookup_one_len(MOUNT_CONFIGS_DIR, current->fs->pwd.dentry,
1022 strlen(MOUNT_CONFIGS_DIR));
1023 if (IS_ERR(dentry)) {
1024 rc = PTR_ERR(dentry);
1025 CERROR("cannot lookup %s directory: rc = %d\n",
1026 MOUNT_CONFIGS_DIR, rc);
1030 /* erase the old tmp log */
1031 rc = llog_erase(NULL, ctxt, NULL, LOG_SPTLRPC_TMP);
1032 if (rc < 0 && rc != -ENOENT) {
1033 CERROR("%s: cannot erase temporary sptlrpc log: rc = %d\n",
1038 /* write temporary log */
1039 rc = llog_open_create(NULL, ctxt, &llh, NULL, LOG_SPTLRPC_TMP);
1042 rc = llog_init_handle(NULL, llh, LLOG_F_IS_PLAIN, NULL);
1044 GOTO(out_close, rc);
1046 rc = sptlrpc_record_rules(llh, conf);
1049 llog_close(NULL, llh);
1051 rc = lustre_rename(dentry, obd->obd_lvfs_ctxt.pwdmnt,
1052 LOG_SPTLRPC_TMP, LOG_SPTLRPC);
1056 pop_ctxt(&saved, &obd->obd_lvfs_ctxt);
1057 llog_ctxt_put(ctxt);
1058 CDEBUG(D_SEC, "target %s: write local sptlrpc conf: rc = %d\n",
1063 static int local_read_handler(const struct lu_env *env,
1064 struct llog_handle *llh,
1065 struct llog_rec_hdr *rec, void *data)
1067 struct sptlrpc_conf *conf = (struct sptlrpc_conf *) data;
1068 struct lustre_cfg *lcfg = (struct lustre_cfg *)(rec + 1);
1072 if (rec->lrh_type != OBD_CFG_REC) {
1073 CERROR("unhandled lrh_type: %#x\n", rec->lrh_type);
1077 cfg_len = rec->lrh_len - sizeof(struct llog_rec_hdr) -
1078 sizeof(struct llog_rec_tail);
1080 rc = lustre_cfg_sanity_check(lcfg, cfg_len);
1082 CERROR("Insane cfg\n");
1086 if (lcfg->lcfg_command != LCFG_SPTLRPC_CONF) {
1087 CERROR("invalid command (%x)\n", lcfg->lcfg_command);
1091 RETURN(__sptlrpc_process_config(lcfg, conf));
1095 int sptlrpc_target_local_read_conf(struct obd_device *obd,
1096 struct sptlrpc_conf *conf)
1098 struct llog_handle *llh = NULL;
1099 struct llog_ctxt *ctxt;
1100 struct lvfs_run_ctxt saved;
1104 LASSERT(conf->sc_updated == 0 && conf->sc_local == 0);
1106 ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
1108 CERROR("missing llog context\n");
1112 push_ctxt(&saved, &obd->obd_lvfs_ctxt);
1114 rc = llog_open(NULL, ctxt, &llh, NULL, LOG_SPTLRPC, LLOG_OPEN_EXISTS);
1121 rc = llog_init_handle(NULL, llh, LLOG_F_IS_PLAIN, NULL);
1123 GOTO(out_close, rc);
1125 if (llog_get_size(llh) <= 1) {
1126 CDEBUG(D_SEC, "no local sptlrpc copy found\n");
1127 GOTO(out_close, rc = 0);
1130 rc = llog_process(NULL, llh, local_read_handler, (void *)conf, NULL);
1135 sptlrpc_conf_free_rsets(conf);
1139 llog_close(NULL, llh);
1141 pop_ctxt(&saved, &obd->obd_lvfs_ctxt);
1142 llog_ctxt_put(ctxt);
1143 CDEBUG(D_SEC, "target %s: read local sptlrpc conf: rc = %d\n",
1150 * called by target devices, extract sptlrpc rules which applies to
1151 * this target, to be used for future rpc flavor checking.
1153 int sptlrpc_conf_target_get_rules(struct obd_device *obd,
1154 struct sptlrpc_rule_set *rset,
1157 struct sptlrpc_conf *conf;
1158 struct sptlrpc_conf_tgt *conf_tgt;
1159 enum lustre_sec_part sp_dst;
1160 char fsname[MTI_NAME_MAXLEN];
1164 if (strcmp(obd->obd_type->typ_name, LUSTRE_MDT_NAME) == 0) {
1165 sp_dst = LUSTRE_SP_MDT;
1166 } else if (strcmp(obd->obd_type->typ_name, LUSTRE_OST_NAME) == 0) {
1167 sp_dst = LUSTRE_SP_OST;
1169 CERROR("unexpected obd type %s\n", obd->obd_type->typ_name);
1172 CDEBUG(D_SEC, "get rules for target %s\n", obd->obd_uuid.uuid);
1174 target2fsname(obd->obd_uuid.uuid, fsname, sizeof(fsname));
1176 mutex_lock(&sptlrpc_conf_lock);
1178 conf = sptlrpc_conf_get(fsname, 0);
1180 CERROR("missing sptlrpc config log\n");
1184 if (conf->sc_updated == 0) {
1186 * always read from local copy. here another option is
1187 * if we already have a local copy (read from another
1188 * target device hosted on the same node) we simply use that.
1191 sptlrpc_conf_free_rsets(conf);
1193 sptlrpc_target_local_read_conf(obd, conf);
1195 LASSERT(conf->sc_local == 0);
1197 /* write a local copy */
1198 if (initial || conf->sc_modified)
1199 sptlrpc_target_local_copy_conf(obd, conf);
1201 CDEBUG(D_SEC, "unchanged, skip updating local copy\n");
1204 /* extract rule set for this target */
1205 conf_tgt = sptlrpc_conf_get_tgt(conf, obd->obd_name, 0);
1207 rc = sptlrpc_rule_set_extract(&conf->sc_rset,
1208 conf_tgt ? &conf_tgt->sct_rset: NULL,
1209 LUSTRE_SP_ANY, sp_dst, rset);
1211 mutex_unlock(&sptlrpc_conf_lock);
1214 EXPORT_SYMBOL(sptlrpc_conf_target_get_rules);
1216 int sptlrpc_conf_init(void)
1218 INIT_LIST_HEAD(&sptlrpc_confs);
1219 mutex_init(&sptlrpc_conf_lock);
1223 void sptlrpc_conf_fini(void)
1225 struct sptlrpc_conf *conf, *conf_next;
1227 mutex_lock(&sptlrpc_conf_lock);
1228 list_for_each_entry_safe(conf, conf_next, &sptlrpc_confs, sc_list)
1229 sptlrpc_conf_free(conf);
1230 LASSERT(list_empty(&sptlrpc_confs));
1231 mutex_unlock(&sptlrpc_conf_lock);