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 <linux/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 strncpy(buf
, str
, sizeof(buf
));
113 buf
[sizeof(buf
) - 1] = '\0';
115 bulk
= strchr(buf
, '-');
119 flvr
->sf_rpc
= sptlrpc_name2flavor_base(buf
);
120 if (flvr
->sf_rpc
== SPTLRPC_FLVR_INVALID
)
124 * currently only base flavor "plain" can have bulk specification.
126 if (flvr
->sf_rpc
== SPTLRPC_FLVR_PLAIN
) {
127 flvr
->u_bulk
.hash
.hash_alg
= BULK_HASH_ALG_ADLER32
;
130 * format: plain-hash:<hash_alg>
132 alg
= strchr(bulk
, ':');
137 if (strcmp(bulk
, "hash"))
140 flvr
->u_bulk
.hash
.hash_alg
= sptlrpc_get_hash_alg(alg
);
141 if (flvr
->u_bulk
.hash
.hash_alg
>= BULK_HASH_ALG_MAX
)
145 if (flvr
->u_bulk
.hash
.hash_alg
== BULK_HASH_ALG_NULL
)
146 flvr_set_bulk_svc(&flvr
->sf_rpc
, SPTLRPC_BULK_SVC_NULL
);
148 flvr_set_bulk_svc(&flvr
->sf_rpc
, SPTLRPC_BULK_SVC_INTG
);
158 CERROR("invalid flavor string: %s\n", str
);
161 EXPORT_SYMBOL(sptlrpc_parse_flavor
);
163 /****************************************
165 ****************************************/
167 static void get_default_flavor(struct sptlrpc_flavor
*sf
)
169 memset(sf
, 0, sizeof(*sf
));
171 sf
->sf_rpc
= SPTLRPC_FLVR_NULL
;
175 static void sptlrpc_rule_init(struct sptlrpc_rule
*rule
)
177 rule
->sr_netid
= LNET_NIDNET(LNET_NID_ANY
);
178 rule
->sr_from
= LUSTRE_SP_ANY
;
179 rule
->sr_to
= LUSTRE_SP_ANY
;
180 rule
->sr_padding
= 0;
182 get_default_flavor(&rule
->sr_flvr
);
186 * format: network[.direction]=flavor
188 int sptlrpc_parse_rule(char *param
, struct sptlrpc_rule
*rule
)
193 sptlrpc_rule_init(rule
);
195 flavor
= strchr(param
, '=');
196 if (flavor
== NULL
) {
197 CERROR("invalid param, no '='\n");
202 dir
= strchr(param
, '.');
207 if (strcmp(param
, "default")) {
208 rule
->sr_netid
= libcfs_str2net(param
);
209 if (rule
->sr_netid
== LNET_NIDNET(LNET_NID_ANY
)) {
210 CERROR("invalid network name: %s\n", param
);
217 if (!strcmp(dir
, "mdt2ost")) {
218 rule
->sr_from
= LUSTRE_SP_MDT
;
219 rule
->sr_to
= LUSTRE_SP_OST
;
220 } else if (!strcmp(dir
, "mdt2mdt")) {
221 rule
->sr_from
= LUSTRE_SP_MDT
;
222 rule
->sr_to
= LUSTRE_SP_MDT
;
223 } else if (!strcmp(dir
, "cli2ost")) {
224 rule
->sr_from
= LUSTRE_SP_CLI
;
225 rule
->sr_to
= LUSTRE_SP_OST
;
226 } else if (!strcmp(dir
, "cli2mdt")) {
227 rule
->sr_from
= LUSTRE_SP_CLI
;
228 rule
->sr_to
= LUSTRE_SP_MDT
;
230 CERROR("invalid rule dir segment: %s\n", dir
);
236 rc
= sptlrpc_parse_flavor(flavor
, &rule
->sr_flvr
);
242 EXPORT_SYMBOL(sptlrpc_parse_rule
);
244 void sptlrpc_rule_set_free(struct sptlrpc_rule_set
*rset
)
246 LASSERT(rset
->srs_nslot
||
247 (rset
->srs_nrule
== 0 && rset
->srs_rules
== NULL
));
249 if (rset
->srs_nslot
) {
250 OBD_FREE(rset
->srs_rules
,
251 rset
->srs_nslot
* sizeof(*rset
->srs_rules
));
252 sptlrpc_rule_set_init(rset
);
255 EXPORT_SYMBOL(sptlrpc_rule_set_free
);
258 * return 0 if the rule set could accommodate one more rule.
260 int sptlrpc_rule_set_expand(struct sptlrpc_rule_set
*rset
)
262 struct sptlrpc_rule
*rules
;
267 if (rset
->srs_nrule
< rset
->srs_nslot
)
270 nslot
= rset
->srs_nslot
+ 8;
272 /* better use realloc() if available */
273 OBD_ALLOC(rules
, nslot
* sizeof(*rset
->srs_rules
));
277 if (rset
->srs_nrule
) {
278 LASSERT(rset
->srs_nslot
&& rset
->srs_rules
);
279 memcpy(rules
, rset
->srs_rules
,
280 rset
->srs_nrule
* sizeof(*rset
->srs_rules
));
282 OBD_FREE(rset
->srs_rules
,
283 rset
->srs_nslot
* sizeof(*rset
->srs_rules
));
286 rset
->srs_rules
= rules
;
287 rset
->srs_nslot
= nslot
;
290 EXPORT_SYMBOL(sptlrpc_rule_set_expand
);
292 static inline int rule_spec_dir(struct sptlrpc_rule
*rule
)
294 return (rule
->sr_from
!= LUSTRE_SP_ANY
||
295 rule
->sr_to
!= LUSTRE_SP_ANY
);
297 static inline int rule_spec_net(struct sptlrpc_rule
*rule
)
299 return (rule
->sr_netid
!= LNET_NIDNET(LNET_NID_ANY
));
301 static inline int rule_match_dir(struct sptlrpc_rule
*r1
,
302 struct sptlrpc_rule
*r2
)
304 return (r1
->sr_from
== r2
->sr_from
&& r1
->sr_to
== r2
->sr_to
);
306 static inline int rule_match_net(struct sptlrpc_rule
*r1
,
307 struct sptlrpc_rule
*r2
)
309 return (r1
->sr_netid
== r2
->sr_netid
);
313 * merge @rule into @rset.
314 * the @rset slots might be expanded.
316 int sptlrpc_rule_set_merge(struct sptlrpc_rule_set
*rset
,
317 struct sptlrpc_rule
*rule
)
319 struct sptlrpc_rule
*p
= rset
->srs_rules
;
320 int spec_dir
, spec_net
;
321 int rc
, n
, match
= 0;
325 spec_net
= rule_spec_net(rule
);
326 spec_dir
= rule_spec_dir(rule
);
328 for (n
= 0; n
< rset
->srs_nrule
; n
++) {
329 p
= &rset
->srs_rules
[n
];
331 /* test network match, if failed:
332 * - spec rule: skip rules which is also spec rule match, until
333 * we hit a wild rule, which means no more chance
334 * - wild rule: skip until reach the one which is also wild
337 if (!rule_match_net(p
, rule
)) {
339 if (rule_spec_net(p
))
348 /* test dir match, same logic as net matching */
349 if (!rule_match_dir(p
, rule
)) {
351 if (rule_spec_dir(p
))
366 LASSERT(n
>= 0 && n
< rset
->srs_nrule
);
368 if (rule
->sr_flvr
.sf_rpc
== SPTLRPC_FLVR_INVALID
) {
369 /* remove this rule */
370 if (n
< rset
->srs_nrule
- 1)
371 memmove(&rset
->srs_rules
[n
],
372 &rset
->srs_rules
[n
+ 1],
373 (rset
->srs_nrule
- n
- 1) *
377 /* override the rule */
378 memcpy(&rset
->srs_rules
[n
], rule
, sizeof(*rule
));
381 LASSERT(n
>= 0 && n
<= rset
->srs_nrule
);
383 if (rule
->sr_flvr
.sf_rpc
!= SPTLRPC_FLVR_INVALID
) {
384 rc
= sptlrpc_rule_set_expand(rset
);
388 if (n
< rset
->srs_nrule
)
389 memmove(&rset
->srs_rules
[n
+ 1],
391 (rset
->srs_nrule
- n
) * sizeof(*rule
));
392 memcpy(&rset
->srs_rules
[n
], rule
, sizeof(*rule
));
395 CDEBUG(D_CONFIG
, "ignore the unmatched deletion\n");
401 EXPORT_SYMBOL(sptlrpc_rule_set_merge
);
404 * given from/to/nid, determine a matching flavor in ruleset.
405 * return 1 if a match found, otherwise return 0.
407 int sptlrpc_rule_set_choose(struct sptlrpc_rule_set
*rset
,
408 enum lustre_sec_part from
,
409 enum lustre_sec_part to
,
411 struct sptlrpc_flavor
*sf
)
413 struct sptlrpc_rule
*r
;
416 for (n
= 0; n
< rset
->srs_nrule
; n
++) {
417 r
= &rset
->srs_rules
[n
];
419 if (LNET_NIDNET(nid
) != LNET_NIDNET(LNET_NID_ANY
) &&
420 r
->sr_netid
!= LNET_NIDNET(LNET_NID_ANY
) &&
421 LNET_NIDNET(nid
) != r
->sr_netid
)
424 if (from
!= LUSTRE_SP_ANY
&& r
->sr_from
!= LUSTRE_SP_ANY
&&
428 if (to
!= LUSTRE_SP_ANY
&& r
->sr_to
!= LUSTRE_SP_ANY
&&
438 EXPORT_SYMBOL(sptlrpc_rule_set_choose
);
440 void sptlrpc_rule_set_dump(struct sptlrpc_rule_set
*rset
)
442 struct sptlrpc_rule
*r
;
445 for (n
= 0; n
< rset
->srs_nrule
; n
++) {
446 r
= &rset
->srs_rules
[n
];
447 CDEBUG(D_SEC
, "<%02d> from %x to %x, net %x, rpc %x\n", n
,
448 r
->sr_from
, r
->sr_to
, r
->sr_netid
, r
->sr_flvr
.sf_rpc
);
451 EXPORT_SYMBOL(sptlrpc_rule_set_dump
);
453 static int sptlrpc_rule_set_extract(struct sptlrpc_rule_set
*gen
,
454 struct sptlrpc_rule_set
*tgt
,
455 enum lustre_sec_part from
,
456 enum lustre_sec_part to
,
457 struct sptlrpc_rule_set
*rset
)
459 struct sptlrpc_rule_set
*src
[2] = { gen
, tgt
};
460 struct sptlrpc_rule
*rule
;
465 /* merge general rules firstly, then target-specific rules */
466 for (i
= 0; i
< 2; i
++) {
470 for (n
= 0; n
< src
[i
]->srs_nrule
; n
++) {
471 rule
= &src
[i
]->srs_rules
[n
];
473 if (from
!= LUSTRE_SP_ANY
&&
474 rule
->sr_from
!= LUSTRE_SP_ANY
&&
475 rule
->sr_from
!= from
)
477 if (to
!= LUSTRE_SP_ANY
&&
478 rule
->sr_to
!= LUSTRE_SP_ANY
&&
482 rc
= sptlrpc_rule_set_merge(rset
, rule
);
484 CERROR("can't merge: %d\n", rc
);
493 /**********************************
494 * sptlrpc configuration support *
495 **********************************/
497 struct sptlrpc_conf_tgt
{
498 struct list_head sct_list
;
499 char sct_name
[MAX_OBD_NAME
];
500 struct sptlrpc_rule_set sct_rset
;
503 struct sptlrpc_conf
{
504 struct list_head sc_list
;
505 char sc_fsname
[MTI_NAME_MAXLEN
];
506 unsigned int sc_modified
; /* modified during updating */
507 unsigned int sc_updated
:1, /* updated copy from MGS */
508 sc_local
:1; /* local copy from target */
509 struct sptlrpc_rule_set sc_rset
; /* fs general rules */
510 struct list_head sc_tgts
; /* target-specific rules */
513 static struct mutex sptlrpc_conf_lock
;
514 static LIST_HEAD(sptlrpc_confs
);
516 static inline int is_hex(char c
)
518 return ((c
>= '0' && c
<= '9') ||
519 (c
>= 'a' && c
<= 'f'));
522 static void target2fsname(const char *tgt
, char *fsname
, int buflen
)
527 ptr
= strrchr(tgt
, '-');
529 if ((strncmp(ptr
, "-MDT", 4) != 0 &&
530 strncmp(ptr
, "-OST", 4) != 0) ||
531 !is_hex(ptr
[4]) || !is_hex(ptr
[5]) ||
532 !is_hex(ptr
[6]) || !is_hex(ptr
[7]))
536 /* if we didn't find the pattern, treat the whole string as fsname */
542 len
= min(len
, buflen
- 1);
543 memcpy(fsname
, tgt
, len
);
547 static void sptlrpc_conf_free_rsets(struct sptlrpc_conf
*conf
)
549 struct sptlrpc_conf_tgt
*conf_tgt
, *conf_tgt_next
;
551 sptlrpc_rule_set_free(&conf
->sc_rset
);
553 list_for_each_entry_safe(conf_tgt
, conf_tgt_next
,
554 &conf
->sc_tgts
, sct_list
) {
555 sptlrpc_rule_set_free(&conf_tgt
->sct_rset
);
556 list_del(&conf_tgt
->sct_list
);
557 OBD_FREE_PTR(conf_tgt
);
559 LASSERT(list_empty(&conf
->sc_tgts
));
561 conf
->sc_updated
= 0;
565 static void sptlrpc_conf_free(struct sptlrpc_conf
*conf
)
567 CDEBUG(D_SEC
, "free sptlrpc conf %s\n", conf
->sc_fsname
);
569 sptlrpc_conf_free_rsets(conf
);
570 list_del(&conf
->sc_list
);
575 struct sptlrpc_conf_tgt
*sptlrpc_conf_get_tgt(struct sptlrpc_conf
*conf
,
579 struct sptlrpc_conf_tgt
*conf_tgt
;
581 list_for_each_entry(conf_tgt
, &conf
->sc_tgts
, sct_list
) {
582 if (strcmp(conf_tgt
->sct_name
, name
) == 0)
589 OBD_ALLOC_PTR(conf_tgt
);
591 strlcpy(conf_tgt
->sct_name
, name
, sizeof(conf_tgt
->sct_name
));
592 sptlrpc_rule_set_init(&conf_tgt
->sct_rset
);
593 list_add(&conf_tgt
->sct_list
, &conf
->sc_tgts
);
600 struct sptlrpc_conf
*sptlrpc_conf_get(const char *fsname
,
603 struct sptlrpc_conf
*conf
;
605 list_for_each_entry(conf
, &sptlrpc_confs
, sc_list
) {
606 if (strcmp(conf
->sc_fsname
, fsname
) == 0)
617 strcpy(conf
->sc_fsname
, fsname
);
618 sptlrpc_rule_set_init(&conf
->sc_rset
);
619 INIT_LIST_HEAD(&conf
->sc_tgts
);
620 list_add(&conf
->sc_list
, &sptlrpc_confs
);
622 CDEBUG(D_SEC
, "create sptlrpc conf %s\n", conf
->sc_fsname
);
627 * caller must hold conf_lock already.
629 static int sptlrpc_conf_merge_rule(struct sptlrpc_conf
*conf
,
631 struct sptlrpc_rule
*rule
)
633 struct sptlrpc_conf_tgt
*conf_tgt
;
634 struct sptlrpc_rule_set
*rule_set
;
636 /* fsname == target means general rules for the whole fs */
637 if (strcmp(conf
->sc_fsname
, target
) == 0) {
638 rule_set
= &conf
->sc_rset
;
640 conf_tgt
= sptlrpc_conf_get_tgt(conf
, target
, 1);
642 rule_set
= &conf_tgt
->sct_rset
;
644 CERROR("out of memory, can't merge rule!\n");
649 return sptlrpc_rule_set_merge(rule_set
, rule
);
653 * process one LCFG_SPTLRPC_CONF record. if \a conf is NULL, we
654 * find one through the target name in the record inside conf_lock;
655 * otherwise means caller already hold conf_lock.
657 static int __sptlrpc_process_config(struct lustre_cfg
*lcfg
,
658 struct sptlrpc_conf
*conf
)
660 char *target
, *param
;
661 char fsname
[MTI_NAME_MAXLEN
];
662 struct sptlrpc_rule rule
;
665 target
= lustre_cfg_string(lcfg
, 1);
666 if (target
== NULL
) {
667 CERROR("missing target name\n");
671 param
= lustre_cfg_string(lcfg
, 2);
673 CERROR("missing parameter\n");
677 CDEBUG(D_SEC
, "processing rule: %s.%s\n", target
, param
);
679 /* parse rule to make sure the format is correct */
680 if (strncmp(param
, PARAM_SRPC_FLVR
, sizeof(PARAM_SRPC_FLVR
) - 1) != 0) {
681 CERROR("Invalid sptlrpc parameter: %s\n", param
);
684 param
+= sizeof(PARAM_SRPC_FLVR
) - 1;
686 rc
= sptlrpc_parse_rule(param
, &rule
);
691 target2fsname(target
, fsname
, sizeof(fsname
));
693 mutex_lock(&sptlrpc_conf_lock
);
694 conf
= sptlrpc_conf_get(fsname
, 0);
696 CERROR("can't find conf\n");
699 rc
= sptlrpc_conf_merge_rule(conf
, target
, &rule
);
701 mutex_unlock(&sptlrpc_conf_lock
);
703 LASSERT(mutex_is_locked(&sptlrpc_conf_lock
));
704 rc
= sptlrpc_conf_merge_rule(conf
, target
, &rule
);
713 int sptlrpc_process_config(struct lustre_cfg
*lcfg
)
715 return __sptlrpc_process_config(lcfg
, NULL
);
717 EXPORT_SYMBOL(sptlrpc_process_config
);
719 static int logname2fsname(const char *logname
, char *buf
, int buflen
)
724 ptr
= strrchr(logname
, '-');
725 if (ptr
== NULL
|| strcmp(ptr
, "-sptlrpc")) {
726 CERROR("%s is not a sptlrpc config log\n", logname
);
730 len
= min((int) (ptr
- logname
), buflen
- 1);
732 memcpy(buf
, logname
, len
);
737 void sptlrpc_conf_log_update_begin(const char *logname
)
739 struct sptlrpc_conf
*conf
;
742 if (logname2fsname(logname
, fsname
, sizeof(fsname
)))
745 mutex_lock(&sptlrpc_conf_lock
);
747 conf
= sptlrpc_conf_get(fsname
, 0);
748 if (conf
&& conf
->sc_local
) {
749 LASSERT(conf
->sc_updated
== 0);
750 sptlrpc_conf_free_rsets(conf
);
752 conf
->sc_modified
= 0;
754 mutex_unlock(&sptlrpc_conf_lock
);
756 EXPORT_SYMBOL(sptlrpc_conf_log_update_begin
);
759 * mark a config log has been updated
761 void sptlrpc_conf_log_update_end(const char *logname
)
763 struct sptlrpc_conf
*conf
;
766 if (logname2fsname(logname
, fsname
, sizeof(fsname
)))
769 mutex_lock(&sptlrpc_conf_lock
);
771 conf
= sptlrpc_conf_get(fsname
, 0);
774 * if original state is not updated, make sure the
775 * modified counter > 0 to enforce updating local copy.
777 if (conf
->sc_updated
== 0)
780 conf
->sc_updated
= 1;
783 mutex_unlock(&sptlrpc_conf_lock
);
785 EXPORT_SYMBOL(sptlrpc_conf_log_update_end
);
787 void sptlrpc_conf_log_start(const char *logname
)
791 if (logname2fsname(logname
, fsname
, sizeof(fsname
)))
794 mutex_lock(&sptlrpc_conf_lock
);
795 sptlrpc_conf_get(fsname
, 1);
796 mutex_unlock(&sptlrpc_conf_lock
);
798 EXPORT_SYMBOL(sptlrpc_conf_log_start
);
800 void sptlrpc_conf_log_stop(const char *logname
)
802 struct sptlrpc_conf
*conf
;
805 if (logname2fsname(logname
, fsname
, sizeof(fsname
)))
808 mutex_lock(&sptlrpc_conf_lock
);
809 conf
= sptlrpc_conf_get(fsname
, 0);
811 sptlrpc_conf_free(conf
);
812 mutex_unlock(&sptlrpc_conf_lock
);
814 EXPORT_SYMBOL(sptlrpc_conf_log_stop
);
816 static void inline flavor_set_flags(struct sptlrpc_flavor
*sf
,
817 enum lustre_sec_part from
,
818 enum lustre_sec_part to
,
819 unsigned int fl_udesc
)
822 * null flavor doesn't need to set any flavor, and in fact
823 * we'd better not do that because everybody share a single sec.
825 if (sf
->sf_rpc
== SPTLRPC_FLVR_NULL
)
828 if (from
== LUSTRE_SP_MDT
) {
829 /* MDT->MDT; MDT->OST */
830 sf
->sf_flags
|= PTLRPC_SEC_FL_ROOTONLY
;
831 } else if (from
== LUSTRE_SP_CLI
&& to
== LUSTRE_SP_OST
) {
833 sf
->sf_flags
|= PTLRPC_SEC_FL_ROOTONLY
| PTLRPC_SEC_FL_BULK
;
834 } else if (from
== LUSTRE_SP_CLI
&& to
== LUSTRE_SP_MDT
) {
836 if (fl_udesc
&& sf
->sf_rpc
!= SPTLRPC_FLVR_NULL
)
837 sf
->sf_flags
|= PTLRPC_SEC_FL_UDESC
;
841 void sptlrpc_conf_choose_flavor(enum lustre_sec_part from
,
842 enum lustre_sec_part to
,
843 struct obd_uuid
*target
,
845 struct sptlrpc_flavor
*sf
)
847 struct sptlrpc_conf
*conf
;
848 struct sptlrpc_conf_tgt
*conf_tgt
;
849 char name
[MTI_NAME_MAXLEN
];
852 target2fsname(target
->uuid
, name
, sizeof(name
));
854 mutex_lock(&sptlrpc_conf_lock
);
856 conf
= sptlrpc_conf_get(name
, 0);
860 /* convert uuid name (supposed end with _UUID) to target name */
861 len
= strlen(target
->uuid
);
863 memcpy(name
, target
->uuid
, len
- 5);
864 name
[len
- 5] = '\0';
866 conf_tgt
= sptlrpc_conf_get_tgt(conf
, name
, 0);
868 rc
= sptlrpc_rule_set_choose(&conf_tgt
->sct_rset
,
874 rc
= sptlrpc_rule_set_choose(&conf
->sc_rset
, from
, to
, nid
, sf
);
876 mutex_unlock(&sptlrpc_conf_lock
);
879 get_default_flavor(sf
);
881 flavor_set_flags(sf
, from
, to
, 1);
885 * called by target devices, determine the expected flavor from
886 * certain peer (from, nid).
888 void sptlrpc_target_choose_flavor(struct sptlrpc_rule_set
*rset
,
889 enum lustre_sec_part from
,
891 struct sptlrpc_flavor
*sf
)
893 if (sptlrpc_rule_set_choose(rset
, from
, LUSTRE_SP_ANY
, nid
, sf
) == 0)
894 get_default_flavor(sf
);
896 EXPORT_SYMBOL(sptlrpc_target_choose_flavor
);
898 #define SEC_ADAPT_DELAY (10)
901 * called by client devices, notify the sptlrpc config has changed and
902 * do import_sec_adapt later.
904 void sptlrpc_conf_client_adapt(struct obd_device
*obd
)
906 struct obd_import
*imp
;
908 LASSERT(strcmp(obd
->obd_type
->typ_name
, LUSTRE_MDC_NAME
) == 0 ||
909 strcmp(obd
->obd_type
->typ_name
, LUSTRE_OSC_NAME
) ==0);
910 CDEBUG(D_SEC
, "obd %s\n", obd
->u
.cli
.cl_target_uuid
.uuid
);
912 /* serialize with connect/disconnect import */
913 down_read(&obd
->u
.cli
.cl_sem
);
915 imp
= obd
->u
.cli
.cl_import
;
917 spin_lock(&imp
->imp_lock
);
919 imp
->imp_sec_expire
= cfs_time_current_sec() +
921 spin_unlock(&imp
->imp_lock
);
924 up_read(&obd
->u
.cli
.cl_sem
);
926 EXPORT_SYMBOL(sptlrpc_conf_client_adapt
);
929 static void rule2string(struct sptlrpc_rule
*r
, char *buf
, int buflen
)
935 if (r
->sr_netid
== LNET_NIDNET(LNET_NID_ANY
))
938 net
= libcfs_net2str(r
->sr_netid
);
940 if (r
->sr_from
== LUSTRE_SP_ANY
&& r
->sr_to
== LUSTRE_SP_ANY
)
943 snprintf(dirbuf
, sizeof(dirbuf
), ".%s2%s",
944 sptlrpc_part2name(r
->sr_from
),
945 sptlrpc_part2name(r
->sr_to
));
947 ptr
+= snprintf(buf
, buflen
, "srpc.flavor.%s%s=", net
, dirbuf
);
949 sptlrpc_flavor2name(&r
->sr_flvr
, ptr
, buflen
- (ptr
- buf
));
950 buf
[buflen
- 1] = '\0';
953 static int sptlrpc_record_rule_set(struct llog_handle
*llh
,
955 struct sptlrpc_rule_set
*rset
)
957 struct lustre_cfg_bufs bufs
;
958 struct lustre_cfg
*lcfg
;
959 struct llog_rec_hdr rec
;
964 for (i
= 0; i
< rset
->srs_nrule
; i
++) {
965 rule2string(&rset
->srs_rules
[i
], param
, sizeof(param
));
967 lustre_cfg_bufs_reset(&bufs
, NULL
);
968 lustre_cfg_bufs_set_string(&bufs
, 1, target
);
969 lustre_cfg_bufs_set_string(&bufs
, 2, param
);
970 lcfg
= lustre_cfg_new(LCFG_SPTLRPC_CONF
, &bufs
);
973 buflen
= lustre_cfg_len(lcfg
->lcfg_bufcount
,
975 rec
.lrh_len
= llog_data_len(buflen
);
976 rec
.lrh_type
= OBD_CFG_REC
;
977 rc
= llog_write(NULL
, llh
, &rec
, NULL
, 0, (void *)lcfg
, -1);
979 CERROR("failed to write a rec: rc = %d\n", rc
);
980 lustre_cfg_free(lcfg
);
985 static int sptlrpc_record_rules(struct llog_handle
*llh
,
986 struct sptlrpc_conf
*conf
)
988 struct sptlrpc_conf_tgt
*conf_tgt
;
990 sptlrpc_record_rule_set(llh
, conf
->sc_fsname
, &conf
->sc_rset
);
992 list_for_each_entry(conf_tgt
, &conf
->sc_tgts
, sct_list
) {
993 sptlrpc_record_rule_set(llh
, conf_tgt
->sct_name
,
994 &conf_tgt
->sct_rset
);
999 #define LOG_SPTLRPC_TMP "sptlrpc.tmp"
1000 #define LOG_SPTLRPC "sptlrpc"
1003 int sptlrpc_target_local_copy_conf(struct obd_device
*obd
,
1004 struct sptlrpc_conf
*conf
)
1006 struct llog_handle
*llh
= NULL
;
1007 struct llog_ctxt
*ctxt
;
1008 struct lvfs_run_ctxt saved
;
1009 struct dentry
*dentry
;
1012 ctxt
= llog_get_context(obd
, LLOG_CONFIG_ORIG_CTXT
);
1016 push_ctxt(&saved
, &obd
->obd_lvfs_ctxt
, NULL
);
1018 dentry
= ll_lookup_one_len(MOUNT_CONFIGS_DIR
, cfs_fs_pwd(current
->fs
),
1019 strlen(MOUNT_CONFIGS_DIR
));
1020 if (IS_ERR(dentry
)) {
1021 rc
= PTR_ERR(dentry
);
1022 CERROR("cannot lookup %s directory: rc = %d\n",
1023 MOUNT_CONFIGS_DIR
, rc
);
1027 /* erase the old tmp log */
1028 rc
= llog_erase(NULL
, ctxt
, NULL
, LOG_SPTLRPC_TMP
);
1029 if (rc
< 0 && rc
!= -ENOENT
) {
1030 CERROR("%s: cannot erase temporary sptlrpc log: rc = %d\n",
1035 /* write temporary log */
1036 rc
= llog_open_create(NULL
, ctxt
, &llh
, NULL
, LOG_SPTLRPC_TMP
);
1039 rc
= llog_init_handle(NULL
, llh
, LLOG_F_IS_PLAIN
, NULL
);
1041 GOTO(out_close
, rc
);
1043 rc
= sptlrpc_record_rules(llh
, conf
);
1046 llog_close(NULL
, llh
);
1048 rc
= lustre_rename(dentry
, obd
->obd_lvfs_ctxt
.pwdmnt
,
1049 LOG_SPTLRPC_TMP
, LOG_SPTLRPC
);
1053 pop_ctxt(&saved
, &obd
->obd_lvfs_ctxt
, NULL
);
1054 llog_ctxt_put(ctxt
);
1055 CDEBUG(D_SEC
, "target %s: write local sptlrpc conf: rc = %d\n",
1060 static int local_read_handler(const struct lu_env
*env
,
1061 struct llog_handle
*llh
,
1062 struct llog_rec_hdr
*rec
, void *data
)
1064 struct sptlrpc_conf
*conf
= (struct sptlrpc_conf
*) data
;
1065 struct lustre_cfg
*lcfg
= (struct lustre_cfg
*)(rec
+ 1);
1068 if (rec
->lrh_type
!= OBD_CFG_REC
) {
1069 CERROR("unhandled lrh_type: %#x\n", rec
->lrh_type
);
1073 cfg_len
= rec
->lrh_len
- sizeof(struct llog_rec_hdr
) -
1074 sizeof(struct llog_rec_tail
);
1076 rc
= lustre_cfg_sanity_check(lcfg
, cfg_len
);
1078 CERROR("Insane cfg\n");
1082 if (lcfg
->lcfg_command
!= LCFG_SPTLRPC_CONF
) {
1083 CERROR("invalid command (%x)\n", lcfg
->lcfg_command
);
1087 return __sptlrpc_process_config(lcfg
, conf
);
1091 int sptlrpc_target_local_read_conf(struct obd_device
*obd
,
1092 struct sptlrpc_conf
*conf
)
1094 struct llog_handle
*llh
= NULL
;
1095 struct llog_ctxt
*ctxt
;
1096 struct lvfs_run_ctxt saved
;
1099 LASSERT(conf
->sc_updated
== 0 && conf
->sc_local
== 0);
1101 ctxt
= llog_get_context(obd
, LLOG_CONFIG_ORIG_CTXT
);
1103 CERROR("missing llog context\n");
1107 push_ctxt(&saved
, &obd
->obd_lvfs_ctxt
, NULL
);
1109 rc
= llog_open(NULL
, ctxt
, &llh
, NULL
, LOG_SPTLRPC
, LLOG_OPEN_EXISTS
);
1116 rc
= llog_init_handle(NULL
, llh
, LLOG_F_IS_PLAIN
, NULL
);
1118 GOTO(out_close
, rc
);
1120 if (llog_get_size(llh
) <= 1) {
1121 CDEBUG(D_SEC
, "no local sptlrpc copy found\n");
1122 GOTO(out_close
, rc
= 0);
1125 rc
= llog_process(NULL
, llh
, local_read_handler
, (void *)conf
, NULL
);
1130 sptlrpc_conf_free_rsets(conf
);
1134 llog_close(NULL
, llh
);
1136 pop_ctxt(&saved
, &obd
->obd_lvfs_ctxt
, NULL
);
1137 llog_ctxt_put(ctxt
);
1138 CDEBUG(D_SEC
, "target %s: read local sptlrpc conf: rc = %d\n",
1145 * called by target devices, extract sptlrpc rules which applies to
1146 * this target, to be used for future rpc flavor checking.
1148 int sptlrpc_conf_target_get_rules(struct obd_device
*obd
,
1149 struct sptlrpc_rule_set
*rset
,
1152 struct sptlrpc_conf
*conf
;
1153 struct sptlrpc_conf_tgt
*conf_tgt
;
1154 enum lustre_sec_part sp_dst
;
1155 char fsname
[MTI_NAME_MAXLEN
];
1158 if (strcmp(obd
->obd_type
->typ_name
, LUSTRE_MDT_NAME
) == 0) {
1159 sp_dst
= LUSTRE_SP_MDT
;
1160 } else if (strcmp(obd
->obd_type
->typ_name
, LUSTRE_OST_NAME
) == 0) {
1161 sp_dst
= LUSTRE_SP_OST
;
1163 CERROR("unexpected obd type %s\n", obd
->obd_type
->typ_name
);
1166 CDEBUG(D_SEC
, "get rules for target %s\n", obd
->obd_uuid
.uuid
);
1168 target2fsname(obd
->obd_uuid
.uuid
, fsname
, sizeof(fsname
));
1170 mutex_lock(&sptlrpc_conf_lock
);
1172 conf
= sptlrpc_conf_get(fsname
, 0);
1174 CERROR("missing sptlrpc config log\n");
1178 if (conf
->sc_updated
== 0) {
1180 * always read from local copy. here another option is
1181 * if we already have a local copy (read from another
1182 * target device hosted on the same node) we simply use that.
1185 sptlrpc_conf_free_rsets(conf
);
1187 sptlrpc_target_local_read_conf(obd
, conf
);
1189 LASSERT(conf
->sc_local
== 0);
1191 /* write a local copy */
1192 if (initial
|| conf
->sc_modified
)
1193 sptlrpc_target_local_copy_conf(obd
, conf
);
1195 CDEBUG(D_SEC
, "unchanged, skip updating local copy\n");
1198 /* extract rule set for this target */
1199 conf_tgt
= sptlrpc_conf_get_tgt(conf
, obd
->obd_name
, 0);
1201 rc
= sptlrpc_rule_set_extract(&conf
->sc_rset
,
1202 conf_tgt
? &conf_tgt
->sct_rset
: NULL
,
1203 LUSTRE_SP_ANY
, sp_dst
, rset
);
1205 mutex_unlock(&sptlrpc_conf_lock
);
1208 EXPORT_SYMBOL(sptlrpc_conf_target_get_rules
);
1210 int sptlrpc_conf_init(void)
1212 mutex_init(&sptlrpc_conf_lock
);
1216 void sptlrpc_conf_fini(void)
1218 struct sptlrpc_conf
*conf
, *conf_next
;
1220 mutex_lock(&sptlrpc_conf_lock
);
1221 list_for_each_entry_safe(conf
, conf_next
, &sptlrpc_confs
, sc_list
) {
1222 sptlrpc_conf_free(conf
);
1224 LASSERT(list_empty(&sptlrpc_confs
));
1225 mutex_unlock(&sptlrpc_conf_lock
);