1 | // SPDX-License-Identifier: GPL-2.0 |
2 | #include <linux/ceph/ceph_debug.h> |
3 | |
4 | #include <linux/module.h> |
5 | #include <linux/err.h> |
6 | #include <linux/slab.h> |
7 | |
8 | #include <linux/ceph/types.h> |
9 | #include <linux/ceph/decode.h> |
10 | #include <linux/ceph/libceph.h> |
11 | #include <linux/ceph/messenger.h> |
12 | #include "auth_none.h" |
13 | #include "auth_x.h" |
14 | |
15 | |
16 | /* |
17 | * get protocol handler |
18 | */ |
19 | static u32 supported_protocols[] = { |
20 | CEPH_AUTH_NONE, |
21 | CEPH_AUTH_CEPHX |
22 | }; |
23 | |
24 | static int init_protocol(struct ceph_auth_client *ac, int proto) |
25 | { |
26 | dout("%s proto %d\n" , __func__, proto); |
27 | |
28 | switch (proto) { |
29 | case CEPH_AUTH_NONE: |
30 | return ceph_auth_none_init(ac); |
31 | case CEPH_AUTH_CEPHX: |
32 | return ceph_x_init(ac); |
33 | default: |
34 | pr_err("bad auth protocol %d\n" , proto); |
35 | return -EINVAL; |
36 | } |
37 | } |
38 | |
39 | void ceph_auth_set_global_id(struct ceph_auth_client *ac, u64 global_id) |
40 | { |
41 | dout("%s global_id %llu\n" , __func__, global_id); |
42 | |
43 | if (!global_id) |
44 | pr_err("got zero global_id\n" ); |
45 | |
46 | if (ac->global_id && global_id != ac->global_id) |
47 | pr_err("global_id changed from %llu to %llu\n" , ac->global_id, |
48 | global_id); |
49 | |
50 | ac->global_id = global_id; |
51 | } |
52 | |
53 | /* |
54 | * setup, teardown. |
55 | */ |
56 | struct ceph_auth_client *ceph_auth_init(const char *name, |
57 | const struct ceph_crypto_key *key, |
58 | const int *con_modes) |
59 | { |
60 | struct ceph_auth_client *ac; |
61 | |
62 | ac = kzalloc(size: sizeof(*ac), GFP_NOFS); |
63 | if (!ac) |
64 | return ERR_PTR(error: -ENOMEM); |
65 | |
66 | mutex_init(&ac->mutex); |
67 | ac->negotiating = true; |
68 | if (name) |
69 | ac->name = name; |
70 | else |
71 | ac->name = CEPH_AUTH_NAME_DEFAULT; |
72 | ac->key = key; |
73 | ac->preferred_mode = con_modes[0]; |
74 | ac->fallback_mode = con_modes[1]; |
75 | |
76 | dout("%s name '%s' preferred_mode %d fallback_mode %d\n" , __func__, |
77 | ac->name, ac->preferred_mode, ac->fallback_mode); |
78 | return ac; |
79 | } |
80 | |
81 | void ceph_auth_destroy(struct ceph_auth_client *ac) |
82 | { |
83 | dout("auth_destroy %p\n" , ac); |
84 | if (ac->ops) |
85 | ac->ops->destroy(ac); |
86 | kfree(objp: ac); |
87 | } |
88 | |
89 | /* |
90 | * Reset occurs when reconnecting to the monitor. |
91 | */ |
92 | void ceph_auth_reset(struct ceph_auth_client *ac) |
93 | { |
94 | mutex_lock(&ac->mutex); |
95 | dout("auth_reset %p\n" , ac); |
96 | if (ac->ops && !ac->negotiating) |
97 | ac->ops->reset(ac); |
98 | ac->negotiating = true; |
99 | mutex_unlock(lock: &ac->mutex); |
100 | } |
101 | |
102 | /* |
103 | * EntityName, not to be confused with entity_name_t |
104 | */ |
105 | int ceph_auth_entity_name_encode(const char *name, void **p, void *end) |
106 | { |
107 | int len = strlen(name); |
108 | |
109 | if (*p + 2*sizeof(u32) + len > end) |
110 | return -ERANGE; |
111 | ceph_encode_32(p, CEPH_ENTITY_TYPE_CLIENT); |
112 | ceph_encode_32(p, v: len); |
113 | ceph_encode_copy(p, s: name, len); |
114 | return 0; |
115 | } |
116 | |
117 | /* |
118 | * Initiate protocol negotiation with monitor. Include entity name |
119 | * and list supported protocols. |
120 | */ |
121 | int ceph_auth_build_hello(struct ceph_auth_client *ac, void *buf, size_t len) |
122 | { |
123 | struct ceph_mon_request_header *monhdr = buf; |
124 | void *p = monhdr + 1, *end = buf + len, *lenp; |
125 | int i, num; |
126 | int ret; |
127 | |
128 | mutex_lock(&ac->mutex); |
129 | dout("auth_build_hello\n" ); |
130 | monhdr->have_version = 0; |
131 | monhdr->session_mon = cpu_to_le16(-1); |
132 | monhdr->session_mon_tid = 0; |
133 | |
134 | ceph_encode_32(p: &p, CEPH_AUTH_UNKNOWN); /* no protocol, yet */ |
135 | |
136 | lenp = p; |
137 | p += sizeof(u32); |
138 | |
139 | ceph_decode_need(&p, end, 1 + sizeof(u32), bad); |
140 | ceph_encode_8(p: &p, v: 1); |
141 | num = ARRAY_SIZE(supported_protocols); |
142 | ceph_encode_32(p: &p, v: num); |
143 | ceph_decode_need(&p, end, num * sizeof(u32), bad); |
144 | for (i = 0; i < num; i++) |
145 | ceph_encode_32(p: &p, v: supported_protocols[i]); |
146 | |
147 | ret = ceph_auth_entity_name_encode(name: ac->name, p: &p, end); |
148 | if (ret < 0) |
149 | goto out; |
150 | ceph_decode_need(&p, end, sizeof(u64), bad); |
151 | ceph_encode_64(p: &p, v: ac->global_id); |
152 | |
153 | ceph_encode_32(p: &lenp, v: p - lenp - sizeof(u32)); |
154 | ret = p - buf; |
155 | out: |
156 | mutex_unlock(lock: &ac->mutex); |
157 | return ret; |
158 | |
159 | bad: |
160 | ret = -ERANGE; |
161 | goto out; |
162 | } |
163 | |
164 | static int build_request(struct ceph_auth_client *ac, bool , |
165 | void *buf, int buf_len) |
166 | { |
167 | void *end = buf + buf_len; |
168 | void *p; |
169 | int ret; |
170 | |
171 | p = buf; |
172 | if (add_header) { |
173 | /* struct ceph_mon_request_header + protocol */ |
174 | ceph_encode_64_safe(&p, end, 0, e_range); |
175 | ceph_encode_16_safe(&p, end, -1, e_range); |
176 | ceph_encode_64_safe(&p, end, 0, e_range); |
177 | ceph_encode_32_safe(&p, end, ac->protocol, e_range); |
178 | } |
179 | |
180 | ceph_encode_need(&p, end, sizeof(u32), e_range); |
181 | ret = ac->ops->build_request(ac, p + sizeof(u32), end); |
182 | if (ret < 0) { |
183 | pr_err("auth protocol '%s' building request failed: %d\n" , |
184 | ceph_auth_proto_name(ac->protocol), ret); |
185 | return ret; |
186 | } |
187 | dout(" built request %d bytes\n" , ret); |
188 | ceph_encode_32(p: &p, v: ret); |
189 | return p + ret - buf; |
190 | |
191 | e_range: |
192 | return -ERANGE; |
193 | } |
194 | |
195 | /* |
196 | * Handle auth message from monitor. |
197 | */ |
198 | int ceph_handle_auth_reply(struct ceph_auth_client *ac, |
199 | void *buf, size_t len, |
200 | void *reply_buf, size_t reply_len) |
201 | { |
202 | void *p = buf; |
203 | void *end = buf + len; |
204 | int protocol; |
205 | s32 result; |
206 | u64 global_id; |
207 | void *payload, *payload_end; |
208 | int payload_len; |
209 | char *result_msg; |
210 | int result_msg_len; |
211 | int ret = -EINVAL; |
212 | |
213 | mutex_lock(&ac->mutex); |
214 | dout("handle_auth_reply %p %p\n" , p, end); |
215 | ceph_decode_need(&p, end, sizeof(u32) * 3 + sizeof(u64), bad); |
216 | protocol = ceph_decode_32(p: &p); |
217 | result = ceph_decode_32(p: &p); |
218 | global_id = ceph_decode_64(p: &p); |
219 | payload_len = ceph_decode_32(p: &p); |
220 | payload = p; |
221 | p += payload_len; |
222 | ceph_decode_need(&p, end, sizeof(u32), bad); |
223 | result_msg_len = ceph_decode_32(p: &p); |
224 | result_msg = p; |
225 | p += result_msg_len; |
226 | if (p != end) |
227 | goto bad; |
228 | |
229 | dout(" result %d '%.*s' gid %llu len %d\n" , result, result_msg_len, |
230 | result_msg, global_id, payload_len); |
231 | |
232 | payload_end = payload + payload_len; |
233 | |
234 | if (ac->negotiating) { |
235 | /* server does not support our protocols? */ |
236 | if (!protocol && result < 0) { |
237 | ret = result; |
238 | goto out; |
239 | } |
240 | /* set up (new) protocol handler? */ |
241 | if (ac->protocol && ac->protocol != protocol) { |
242 | ac->ops->destroy(ac); |
243 | ac->protocol = 0; |
244 | ac->ops = NULL; |
245 | } |
246 | if (ac->protocol != protocol) { |
247 | ret = init_protocol(ac, proto: protocol); |
248 | if (ret) { |
249 | pr_err("auth protocol '%s' init failed: %d\n" , |
250 | ceph_auth_proto_name(protocol), ret); |
251 | goto out; |
252 | } |
253 | } |
254 | |
255 | ac->negotiating = false; |
256 | } |
257 | |
258 | if (result) { |
259 | pr_err("auth protocol '%s' mauth authentication failed: %d\n" , |
260 | ceph_auth_proto_name(ac->protocol), result); |
261 | ret = result; |
262 | goto out; |
263 | } |
264 | |
265 | ret = ac->ops->handle_reply(ac, global_id, payload, payload_end, |
266 | NULL, NULL, NULL, NULL); |
267 | if (ret == -EAGAIN) { |
268 | ret = build_request(ac, add_header: true, buf: reply_buf, buf_len: reply_len); |
269 | goto out; |
270 | } else if (ret) { |
271 | goto out; |
272 | } |
273 | |
274 | out: |
275 | mutex_unlock(lock: &ac->mutex); |
276 | return ret; |
277 | |
278 | bad: |
279 | pr_err("failed to decode auth msg\n" ); |
280 | ret = -EINVAL; |
281 | goto out; |
282 | } |
283 | |
284 | int ceph_build_auth(struct ceph_auth_client *ac, |
285 | void *msg_buf, size_t msg_len) |
286 | { |
287 | int ret = 0; |
288 | |
289 | mutex_lock(&ac->mutex); |
290 | if (ac->ops->should_authenticate(ac)) |
291 | ret = build_request(ac, add_header: true, buf: msg_buf, buf_len: msg_len); |
292 | mutex_unlock(lock: &ac->mutex); |
293 | return ret; |
294 | } |
295 | |
296 | int ceph_auth_is_authenticated(struct ceph_auth_client *ac) |
297 | { |
298 | int ret = 0; |
299 | |
300 | mutex_lock(&ac->mutex); |
301 | if (ac->ops) |
302 | ret = ac->ops->is_authenticated(ac); |
303 | mutex_unlock(lock: &ac->mutex); |
304 | return ret; |
305 | } |
306 | EXPORT_SYMBOL(ceph_auth_is_authenticated); |
307 | |
308 | int __ceph_auth_get_authorizer(struct ceph_auth_client *ac, |
309 | struct ceph_auth_handshake *auth, |
310 | int peer_type, bool force_new, |
311 | int *proto, int *pref_mode, int *fallb_mode) |
312 | { |
313 | int ret; |
314 | |
315 | mutex_lock(&ac->mutex); |
316 | if (force_new && auth->authorizer) { |
317 | ceph_auth_destroy_authorizer(a: auth->authorizer); |
318 | auth->authorizer = NULL; |
319 | } |
320 | if (!auth->authorizer) |
321 | ret = ac->ops->create_authorizer(ac, peer_type, auth); |
322 | else if (ac->ops->update_authorizer) |
323 | ret = ac->ops->update_authorizer(ac, peer_type, auth); |
324 | else |
325 | ret = 0; |
326 | if (ret) |
327 | goto out; |
328 | |
329 | *proto = ac->protocol; |
330 | if (pref_mode && fallb_mode) { |
331 | *pref_mode = ac->preferred_mode; |
332 | *fallb_mode = ac->fallback_mode; |
333 | } |
334 | |
335 | out: |
336 | mutex_unlock(lock: &ac->mutex); |
337 | return ret; |
338 | } |
339 | EXPORT_SYMBOL(__ceph_auth_get_authorizer); |
340 | |
341 | void ceph_auth_destroy_authorizer(struct ceph_authorizer *a) |
342 | { |
343 | a->destroy(a); |
344 | } |
345 | EXPORT_SYMBOL(ceph_auth_destroy_authorizer); |
346 | |
347 | int ceph_auth_add_authorizer_challenge(struct ceph_auth_client *ac, |
348 | struct ceph_authorizer *a, |
349 | void *challenge_buf, |
350 | int challenge_buf_len) |
351 | { |
352 | int ret = 0; |
353 | |
354 | mutex_lock(&ac->mutex); |
355 | if (ac->ops && ac->ops->add_authorizer_challenge) |
356 | ret = ac->ops->add_authorizer_challenge(ac, a, challenge_buf, |
357 | challenge_buf_len); |
358 | mutex_unlock(lock: &ac->mutex); |
359 | return ret; |
360 | } |
361 | EXPORT_SYMBOL(ceph_auth_add_authorizer_challenge); |
362 | |
363 | int ceph_auth_verify_authorizer_reply(struct ceph_auth_client *ac, |
364 | struct ceph_authorizer *a, |
365 | void *reply, int reply_len, |
366 | u8 *session_key, int *session_key_len, |
367 | u8 *con_secret, int *con_secret_len) |
368 | { |
369 | int ret = 0; |
370 | |
371 | mutex_lock(&ac->mutex); |
372 | if (ac->ops && ac->ops->verify_authorizer_reply) |
373 | ret = ac->ops->verify_authorizer_reply(ac, a, |
374 | reply, reply_len, session_key, session_key_len, |
375 | con_secret, con_secret_len); |
376 | mutex_unlock(lock: &ac->mutex); |
377 | return ret; |
378 | } |
379 | EXPORT_SYMBOL(ceph_auth_verify_authorizer_reply); |
380 | |
381 | void ceph_auth_invalidate_authorizer(struct ceph_auth_client *ac, int peer_type) |
382 | { |
383 | mutex_lock(&ac->mutex); |
384 | if (ac->ops && ac->ops->invalidate_authorizer) |
385 | ac->ops->invalidate_authorizer(ac, peer_type); |
386 | mutex_unlock(lock: &ac->mutex); |
387 | } |
388 | EXPORT_SYMBOL(ceph_auth_invalidate_authorizer); |
389 | |
390 | /* |
391 | * msgr2 authentication |
392 | */ |
393 | |
394 | static bool contains(const int *arr, int cnt, int val) |
395 | { |
396 | int i; |
397 | |
398 | for (i = 0; i < cnt; i++) { |
399 | if (arr[i] == val) |
400 | return true; |
401 | } |
402 | |
403 | return false; |
404 | } |
405 | |
406 | static int encode_con_modes(void **p, void *end, int pref_mode, int fallb_mode) |
407 | { |
408 | WARN_ON(pref_mode == CEPH_CON_MODE_UNKNOWN); |
409 | if (fallb_mode != CEPH_CON_MODE_UNKNOWN) { |
410 | ceph_encode_32_safe(p, end, 2, e_range); |
411 | ceph_encode_32_safe(p, end, pref_mode, e_range); |
412 | ceph_encode_32_safe(p, end, fallb_mode, e_range); |
413 | } else { |
414 | ceph_encode_32_safe(p, end, 1, e_range); |
415 | ceph_encode_32_safe(p, end, pref_mode, e_range); |
416 | } |
417 | |
418 | return 0; |
419 | |
420 | e_range: |
421 | return -ERANGE; |
422 | } |
423 | |
424 | /* |
425 | * Similar to ceph_auth_build_hello(). |
426 | */ |
427 | int ceph_auth_get_request(struct ceph_auth_client *ac, void *buf, int buf_len) |
428 | { |
429 | int proto = ac->key ? CEPH_AUTH_CEPHX : CEPH_AUTH_NONE; |
430 | void *end = buf + buf_len; |
431 | void *lenp; |
432 | void *p; |
433 | int ret; |
434 | |
435 | mutex_lock(&ac->mutex); |
436 | if (ac->protocol == CEPH_AUTH_UNKNOWN) { |
437 | ret = init_protocol(ac, proto); |
438 | if (ret) { |
439 | pr_err("auth protocol '%s' init failed: %d\n" , |
440 | ceph_auth_proto_name(proto), ret); |
441 | goto out; |
442 | } |
443 | } else { |
444 | WARN_ON(ac->protocol != proto); |
445 | ac->ops->reset(ac); |
446 | } |
447 | |
448 | p = buf; |
449 | ceph_encode_32_safe(&p, end, ac->protocol, e_range); |
450 | ret = encode_con_modes(p: &p, end, pref_mode: ac->preferred_mode, fallb_mode: ac->fallback_mode); |
451 | if (ret) |
452 | goto out; |
453 | |
454 | lenp = p; |
455 | p += 4; /* space for len */ |
456 | |
457 | ceph_encode_8_safe(&p, end, CEPH_AUTH_MODE_MON, e_range); |
458 | ret = ceph_auth_entity_name_encode(name: ac->name, p: &p, end); |
459 | if (ret) |
460 | goto out; |
461 | |
462 | ceph_encode_64_safe(&p, end, ac->global_id, e_range); |
463 | ceph_encode_32(p: &lenp, v: p - lenp - 4); |
464 | ret = p - buf; |
465 | |
466 | out: |
467 | mutex_unlock(lock: &ac->mutex); |
468 | return ret; |
469 | |
470 | e_range: |
471 | ret = -ERANGE; |
472 | goto out; |
473 | } |
474 | |
475 | int ceph_auth_handle_reply_more(struct ceph_auth_client *ac, void *reply, |
476 | int reply_len, void *buf, int buf_len) |
477 | { |
478 | int ret; |
479 | |
480 | mutex_lock(&ac->mutex); |
481 | ret = ac->ops->handle_reply(ac, 0, reply, reply + reply_len, |
482 | NULL, NULL, NULL, NULL); |
483 | if (ret == -EAGAIN) |
484 | ret = build_request(ac, add_header: false, buf, buf_len); |
485 | else |
486 | WARN_ON(ret >= 0); |
487 | mutex_unlock(lock: &ac->mutex); |
488 | return ret; |
489 | } |
490 | |
491 | int ceph_auth_handle_reply_done(struct ceph_auth_client *ac, |
492 | u64 global_id, void *reply, int reply_len, |
493 | u8 *session_key, int *session_key_len, |
494 | u8 *con_secret, int *con_secret_len) |
495 | { |
496 | int ret; |
497 | |
498 | mutex_lock(&ac->mutex); |
499 | ret = ac->ops->handle_reply(ac, global_id, reply, reply + reply_len, |
500 | session_key, session_key_len, |
501 | con_secret, con_secret_len); |
502 | WARN_ON(ret == -EAGAIN || ret > 0); |
503 | mutex_unlock(lock: &ac->mutex); |
504 | return ret; |
505 | } |
506 | |
507 | bool ceph_auth_handle_bad_method(struct ceph_auth_client *ac, |
508 | int used_proto, int result, |
509 | const int *allowed_protos, int proto_cnt, |
510 | const int *allowed_modes, int mode_cnt) |
511 | { |
512 | mutex_lock(&ac->mutex); |
513 | WARN_ON(used_proto != ac->protocol); |
514 | |
515 | if (result == -EOPNOTSUPP) { |
516 | if (!contains(arr: allowed_protos, cnt: proto_cnt, val: ac->protocol)) { |
517 | pr_err("auth protocol '%s' not allowed\n" , |
518 | ceph_auth_proto_name(ac->protocol)); |
519 | goto not_allowed; |
520 | } |
521 | if (!contains(arr: allowed_modes, cnt: mode_cnt, val: ac->preferred_mode) && |
522 | (ac->fallback_mode == CEPH_CON_MODE_UNKNOWN || |
523 | !contains(arr: allowed_modes, cnt: mode_cnt, val: ac->fallback_mode))) { |
524 | pr_err("preferred mode '%s' not allowed\n" , |
525 | ceph_con_mode_name(ac->preferred_mode)); |
526 | if (ac->fallback_mode == CEPH_CON_MODE_UNKNOWN) |
527 | pr_err("no fallback mode\n" ); |
528 | else |
529 | pr_err("fallback mode '%s' not allowed\n" , |
530 | ceph_con_mode_name(ac->fallback_mode)); |
531 | goto not_allowed; |
532 | } |
533 | } |
534 | |
535 | WARN_ON(result == -EOPNOTSUPP || result >= 0); |
536 | pr_err("auth protocol '%s' msgr authentication failed: %d\n" , |
537 | ceph_auth_proto_name(ac->protocol), result); |
538 | |
539 | mutex_unlock(lock: &ac->mutex); |
540 | return true; |
541 | |
542 | not_allowed: |
543 | mutex_unlock(lock: &ac->mutex); |
544 | return false; |
545 | } |
546 | |
547 | int ceph_auth_get_authorizer(struct ceph_auth_client *ac, |
548 | struct ceph_auth_handshake *auth, |
549 | int peer_type, void *buf, int *buf_len) |
550 | { |
551 | void *end = buf + *buf_len; |
552 | int pref_mode, fallb_mode; |
553 | int proto; |
554 | void *p; |
555 | int ret; |
556 | |
557 | ret = __ceph_auth_get_authorizer(ac, auth, peer_type, true, &proto, |
558 | &pref_mode, &fallb_mode); |
559 | if (ret) |
560 | return ret; |
561 | |
562 | p = buf; |
563 | ceph_encode_32_safe(&p, end, proto, e_range); |
564 | ret = encode_con_modes(p: &p, end, pref_mode, fallb_mode); |
565 | if (ret) |
566 | return ret; |
567 | |
568 | ceph_encode_32_safe(&p, end, auth->authorizer_buf_len, e_range); |
569 | *buf_len = p - buf; |
570 | return 0; |
571 | |
572 | e_range: |
573 | return -ERANGE; |
574 | } |
575 | EXPORT_SYMBOL(ceph_auth_get_authorizer); |
576 | |
577 | int ceph_auth_handle_svc_reply_more(struct ceph_auth_client *ac, |
578 | struct ceph_auth_handshake *auth, |
579 | void *reply, int reply_len, |
580 | void *buf, int *buf_len) |
581 | { |
582 | void *end = buf + *buf_len; |
583 | void *p; |
584 | int ret; |
585 | |
586 | ret = ceph_auth_add_authorizer_challenge(ac, auth->authorizer, |
587 | reply, reply_len); |
588 | if (ret) |
589 | return ret; |
590 | |
591 | p = buf; |
592 | ceph_encode_32_safe(&p, end, auth->authorizer_buf_len, e_range); |
593 | *buf_len = p - buf; |
594 | return 0; |
595 | |
596 | e_range: |
597 | return -ERANGE; |
598 | } |
599 | EXPORT_SYMBOL(ceph_auth_handle_svc_reply_more); |
600 | |
601 | int ceph_auth_handle_svc_reply_done(struct ceph_auth_client *ac, |
602 | struct ceph_auth_handshake *auth, |
603 | void *reply, int reply_len, |
604 | u8 *session_key, int *session_key_len, |
605 | u8 *con_secret, int *con_secret_len) |
606 | { |
607 | return ceph_auth_verify_authorizer_reply(ac, auth->authorizer, |
608 | reply, reply_len, session_key, session_key_len, |
609 | con_secret, con_secret_len); |
610 | } |
611 | EXPORT_SYMBOL(ceph_auth_handle_svc_reply_done); |
612 | |
613 | bool ceph_auth_handle_bad_authorizer(struct ceph_auth_client *ac, |
614 | int peer_type, int used_proto, int result, |
615 | const int *allowed_protos, int proto_cnt, |
616 | const int *allowed_modes, int mode_cnt) |
617 | { |
618 | mutex_lock(&ac->mutex); |
619 | WARN_ON(used_proto != ac->protocol); |
620 | |
621 | if (result == -EOPNOTSUPP) { |
622 | if (!contains(arr: allowed_protos, cnt: proto_cnt, val: ac->protocol)) { |
623 | pr_err("auth protocol '%s' not allowed by %s\n" , |
624 | ceph_auth_proto_name(ac->protocol), |
625 | ceph_entity_type_name(peer_type)); |
626 | goto not_allowed; |
627 | } |
628 | if (!contains(arr: allowed_modes, cnt: mode_cnt, val: ac->preferred_mode) && |
629 | (ac->fallback_mode == CEPH_CON_MODE_UNKNOWN || |
630 | !contains(arr: allowed_modes, cnt: mode_cnt, val: ac->fallback_mode))) { |
631 | pr_err("preferred mode '%s' not allowed by %s\n" , |
632 | ceph_con_mode_name(ac->preferred_mode), |
633 | ceph_entity_type_name(peer_type)); |
634 | if (ac->fallback_mode == CEPH_CON_MODE_UNKNOWN) |
635 | pr_err("no fallback mode\n" ); |
636 | else |
637 | pr_err("fallback mode '%s' not allowed by %s\n" , |
638 | ceph_con_mode_name(ac->fallback_mode), |
639 | ceph_entity_type_name(peer_type)); |
640 | goto not_allowed; |
641 | } |
642 | } |
643 | |
644 | WARN_ON(result == -EOPNOTSUPP || result >= 0); |
645 | pr_err("auth protocol '%s' authorization to %s failed: %d\n" , |
646 | ceph_auth_proto_name(ac->protocol), |
647 | ceph_entity_type_name(peer_type), result); |
648 | |
649 | if (ac->ops->invalidate_authorizer) |
650 | ac->ops->invalidate_authorizer(ac, peer_type); |
651 | |
652 | mutex_unlock(lock: &ac->mutex); |
653 | return true; |
654 | |
655 | not_allowed: |
656 | mutex_unlock(lock: &ac->mutex); |
657 | return false; |
658 | } |
659 | EXPORT_SYMBOL(ceph_auth_handle_bad_authorizer); |
660 | |