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1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- | |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net> | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | * | |
13 | */ | |
14 | ||
15 | #include <sstream> | |
16 | ||
17 | #include "mon/AuthMonitor.h" | |
18 | #include "mon/Monitor.h" | |
19 | #include "mon/MonitorDBStore.h" | |
20 | #include "mon/ConfigKeyService.h" | |
21 | #include "mon/OSDMonitor.h" | |
22 | #include "mon/MDSMonitor.h" | |
23 | ||
24 | #include "messages/MMonCommand.h" | |
25 | #include "messages/MAuth.h" | |
26 | #include "messages/MAuthReply.h" | |
27 | #include "messages/MMonGlobalID.h" | |
28 | #include "msg/Messenger.h" | |
29 | ||
30 | #include "auth/AuthServiceHandler.h" | |
31 | #include "auth/KeyRing.h" | |
32 | #include "include/stringify.h" | |
33 | #include "include/assert.h" | |
34 | ||
35 | #define dout_subsys ceph_subsys_mon | |
36 | #undef dout_prefix | |
37 | #define dout_prefix _prefix(_dout, mon, get_last_committed()) | |
38 | static ostream& _prefix(std::ostream *_dout, Monitor *mon, version_t v) { | |
39 | return *_dout << "mon." << mon->name << "@" << mon->rank | |
40 | << "(" << mon->get_state_name() | |
41 | << ").auth v" << v << " "; | |
42 | } | |
43 | ||
44 | ostream& operator<<(ostream &out, const AuthMonitor &pm) | |
45 | { | |
46 | return out << "auth"; | |
47 | } | |
48 | ||
49 | bool AuthMonitor::check_rotate() | |
50 | { | |
51 | KeyServerData::Incremental rot_inc; | |
52 | rot_inc.op = KeyServerData::AUTH_INC_SET_ROTATING; | |
53 | if (!mon->key_server.updated_rotating(rot_inc.rotating_bl, last_rotating_ver)) | |
54 | return false; | |
55 | dout(10) << __func__ << " updated rotating" << dendl; | |
56 | push_cephx_inc(rot_inc); | |
57 | return true; | |
58 | } | |
59 | ||
60 | /* | |
61 | Tick function to update the map based on performance every N seconds | |
62 | */ | |
63 | ||
64 | void AuthMonitor::tick() | |
65 | { | |
66 | if (!is_active()) return; | |
67 | ||
68 | dout(10) << *this << dendl; | |
69 | ||
70 | if (!mon->is_leader()) return; | |
71 | ||
72 | if (check_rotate()) | |
73 | propose_pending(); | |
74 | } | |
75 | ||
76 | void AuthMonitor::on_active() | |
77 | { | |
78 | dout(10) << "AuthMonitor::on_active()" << dendl; | |
79 | ||
80 | if (!mon->is_leader()) | |
81 | return; | |
82 | mon->key_server.start_server(); | |
83 | } | |
84 | ||
85 | void AuthMonitor::create_initial() | |
86 | { | |
87 | dout(10) << "create_initial -- creating initial map" << dendl; | |
88 | ||
89 | // initialize rotating keys | |
90 | last_rotating_ver = 0; | |
91 | check_rotate(); | |
92 | assert(pending_auth.size() == 1); | |
93 | ||
94 | if (mon->is_keyring_required()) { | |
95 | KeyRing keyring; | |
96 | bufferlist bl; | |
97 | int ret = mon->store->get("mkfs", "keyring", bl); | |
98 | // fail hard only if there's an error we're not expecting to see | |
99 | assert((ret == 0) || (ret == -ENOENT)); | |
100 | ||
101 | // try importing only if there's a key | |
102 | if (ret == 0) { | |
103 | KeyRing keyring; | |
104 | bufferlist::iterator p = bl.begin(); | |
105 | ||
106 | ::decode(keyring, p); | |
107 | import_keyring(keyring); | |
108 | } | |
109 | } | |
110 | ||
111 | max_global_id = MIN_GLOBAL_ID; | |
112 | ||
113 | Incremental inc; | |
114 | inc.inc_type = GLOBAL_ID; | |
115 | inc.max_global_id = max_global_id; | |
116 | pending_auth.push_back(inc); | |
117 | ||
118 | format_version = 2; | |
119 | } | |
120 | ||
121 | void AuthMonitor::update_from_paxos(bool *need_bootstrap) | |
122 | { | |
123 | dout(10) << __func__ << dendl; | |
124 | version_t version = get_last_committed(); | |
125 | version_t keys_ver = mon->key_server.get_ver(); | |
126 | if (version == keys_ver) | |
127 | return; | |
128 | assert(version > keys_ver); | |
129 | ||
130 | version_t latest_full = get_version_latest_full(); | |
131 | ||
132 | dout(10) << __func__ << " version " << version << " keys ver " << keys_ver | |
133 | << " latest " << latest_full << dendl; | |
134 | ||
135 | if ((latest_full > 0) && (latest_full > keys_ver)) { | |
136 | bufferlist latest_bl; | |
137 | int err = get_version_full(latest_full, latest_bl); | |
138 | assert(err == 0); | |
139 | assert(latest_bl.length() != 0); | |
140 | dout(7) << __func__ << " loading summary e " << latest_full << dendl; | |
141 | dout(7) << __func__ << " latest length " << latest_bl.length() << dendl; | |
142 | bufferlist::iterator p = latest_bl.begin(); | |
143 | __u8 struct_v; | |
144 | ::decode(struct_v, p); | |
145 | ::decode(max_global_id, p); | |
146 | ::decode(mon->key_server, p); | |
147 | mon->key_server.set_ver(latest_full); | |
148 | keys_ver = latest_full; | |
149 | } | |
150 | ||
151 | dout(10) << __func__ << " key server version " << mon->key_server.get_ver() << dendl; | |
152 | ||
153 | // walk through incrementals | |
154 | while (version > keys_ver) { | |
155 | bufferlist bl; | |
156 | int ret = get_version(keys_ver+1, bl); | |
157 | assert(ret == 0); | |
158 | assert(bl.length()); | |
159 | ||
160 | // reset if we are moving to initial state. we will normally have | |
161 | // keys in here temporarily for bootstrapping that we need to | |
162 | // clear out. | |
163 | if (keys_ver == 0) | |
164 | mon->key_server.clear_secrets(); | |
165 | ||
166 | dout(20) << __func__ << " walking through version " << (keys_ver+1) | |
167 | << " len " << bl.length() << dendl; | |
168 | ||
169 | bufferlist::iterator p = bl.begin(); | |
170 | __u8 v; | |
171 | ::decode(v, p); | |
172 | while (!p.end()) { | |
173 | Incremental inc; | |
174 | ::decode(inc, p); | |
175 | switch (inc.inc_type) { | |
176 | case GLOBAL_ID: | |
177 | max_global_id = inc.max_global_id; | |
178 | break; | |
179 | ||
180 | case AUTH_DATA: | |
181 | { | |
182 | KeyServerData::Incremental auth_inc; | |
183 | bufferlist::iterator iter = inc.auth_data.begin(); | |
184 | ::decode(auth_inc, iter); | |
185 | mon->key_server.apply_data_incremental(auth_inc); | |
186 | break; | |
187 | } | |
188 | } | |
189 | } | |
190 | ||
191 | keys_ver++; | |
192 | mon->key_server.set_ver(keys_ver); | |
193 | ||
194 | if (keys_ver == 1 && mon->is_keyring_required()) { | |
195 | auto t(std::make_shared<MonitorDBStore::Transaction>()); | |
196 | t->erase("mkfs", "keyring"); | |
197 | mon->store->apply_transaction(t); | |
198 | } | |
199 | } | |
200 | ||
201 | if (last_allocated_id == 0) | |
202 | last_allocated_id = max_global_id; | |
203 | ||
204 | dout(10) << "update_from_paxos() last_allocated_id=" << last_allocated_id | |
205 | << " max_global_id=" << max_global_id | |
206 | << " format_version " << format_version | |
207 | << dendl; | |
208 | } | |
209 | ||
210 | void AuthMonitor::increase_max_global_id() | |
211 | { | |
212 | assert(mon->is_leader()); | |
213 | ||
214 | max_global_id += g_conf->mon_globalid_prealloc; | |
215 | dout(10) << "increasing max_global_id to " << max_global_id << dendl; | |
216 | Incremental inc; | |
217 | inc.inc_type = GLOBAL_ID; | |
218 | inc.max_global_id = max_global_id; | |
219 | pending_auth.push_back(inc); | |
220 | } | |
221 | ||
222 | bool AuthMonitor::should_propose(double& delay) | |
223 | { | |
224 | return (!pending_auth.empty()); | |
225 | } | |
226 | ||
227 | void AuthMonitor::create_pending() | |
228 | { | |
229 | pending_auth.clear(); | |
230 | dout(10) << "create_pending v " << (get_last_committed() + 1) << dendl; | |
231 | } | |
232 | ||
233 | void AuthMonitor::encode_pending(MonitorDBStore::TransactionRef t) | |
234 | { | |
235 | dout(10) << __func__ << " v " << (get_last_committed() + 1) << dendl; | |
236 | ||
237 | bufferlist bl; | |
238 | ||
239 | __u8 v = 1; | |
240 | ::encode(v, bl); | |
241 | vector<Incremental>::iterator p; | |
242 | for (p = pending_auth.begin(); p != pending_auth.end(); ++p) | |
243 | p->encode(bl, mon->get_quorum_con_features()); | |
244 | ||
245 | version_t version = get_last_committed() + 1; | |
246 | put_version(t, version, bl); | |
247 | put_last_committed(t, version); | |
248 | } | |
249 | ||
250 | void AuthMonitor::encode_full(MonitorDBStore::TransactionRef t) | |
251 | { | |
252 | version_t version = mon->key_server.get_ver(); | |
253 | // do not stash full version 0 as it will never be removed nor read | |
254 | if (version == 0) | |
255 | return; | |
256 | ||
257 | dout(10) << __func__ << " auth v " << version << dendl; | |
258 | assert(get_last_committed() == version); | |
259 | ||
260 | bufferlist full_bl; | |
261 | Mutex::Locker l(mon->key_server.get_lock()); | |
262 | dout(20) << __func__ << " key server has " | |
263 | << (mon->key_server.has_secrets() ? "" : "no ") | |
264 | << "secrets!" << dendl; | |
265 | __u8 v = 1; | |
266 | ::encode(v, full_bl); | |
267 | ::encode(max_global_id, full_bl); | |
268 | ::encode(mon->key_server, full_bl); | |
269 | ||
270 | put_version_full(t, version, full_bl); | |
271 | put_version_latest_full(t, version); | |
272 | } | |
273 | ||
274 | version_t AuthMonitor::get_trim_to() | |
275 | { | |
276 | unsigned max = g_conf->paxos_max_join_drift * 2; | |
277 | version_t version = get_last_committed(); | |
278 | if (mon->is_leader() && (version > max)) | |
279 | return version - max; | |
280 | return 0; | |
281 | } | |
282 | ||
283 | bool AuthMonitor::preprocess_query(MonOpRequestRef op) | |
284 | { | |
285 | PaxosServiceMessage *m = static_cast<PaxosServiceMessage*>(op->get_req()); | |
286 | dout(10) << "preprocess_query " << *m << " from " << m->get_orig_source_inst() << dendl; | |
287 | switch (m->get_type()) { | |
288 | case MSG_MON_COMMAND: | |
289 | return preprocess_command(op); | |
290 | ||
291 | case CEPH_MSG_AUTH: | |
292 | return prep_auth(op, false); | |
293 | ||
294 | case MSG_MON_GLOBAL_ID: | |
295 | return false; | |
296 | ||
297 | default: | |
298 | ceph_abort(); | |
299 | return true; | |
300 | } | |
301 | } | |
302 | ||
303 | bool AuthMonitor::prepare_update(MonOpRequestRef op) | |
304 | { | |
305 | PaxosServiceMessage *m = static_cast<PaxosServiceMessage*>(op->get_req()); | |
306 | dout(10) << "prepare_update " << *m << " from " << m->get_orig_source_inst() << dendl; | |
307 | switch (m->get_type()) { | |
308 | case MSG_MON_COMMAND: | |
309 | return prepare_command(op); | |
310 | case MSG_MON_GLOBAL_ID: | |
311 | return prepare_global_id(op); | |
312 | case CEPH_MSG_AUTH: | |
313 | return prep_auth(op, true); | |
314 | default: | |
315 | ceph_abort(); | |
316 | return false; | |
317 | } | |
318 | } | |
319 | ||
320 | uint64_t AuthMonitor::assign_global_id(MonOpRequestRef op, bool should_increase_max) | |
321 | { | |
322 | MAuth *m = static_cast<MAuth*>(op->get_req()); | |
323 | int total_mon = mon->monmap->size(); | |
324 | dout(10) << "AuthMonitor::assign_global_id m=" << *m << " mon=" << mon->rank << "/" << total_mon | |
325 | << " last_allocated=" << last_allocated_id << " max_global_id=" << max_global_id << dendl; | |
326 | ||
327 | uint64_t next_global_id = last_allocated_id + 1; | |
328 | int remainder = next_global_id % total_mon; | |
329 | if (remainder) | |
330 | remainder = total_mon - remainder; | |
331 | next_global_id += remainder + mon->rank; | |
332 | dout(10) << "next_global_id should be " << next_global_id << dendl; | |
333 | ||
334 | // if we can't bump the max, bail out now on an out-of-bounds gid | |
335 | if (next_global_id > max_global_id && | |
336 | (!mon->is_leader() || !should_increase_max)) { | |
337 | return 0; | |
338 | } | |
339 | ||
340 | // can we return a gid? | |
341 | bool return_next = (next_global_id <= max_global_id); | |
342 | ||
343 | // bump the max? | |
344 | while (mon->is_leader() && | |
345 | (max_global_id < g_conf->mon_globalid_prealloc || | |
346 | next_global_id >= max_global_id - g_conf->mon_globalid_prealloc / 2)) { | |
347 | increase_max_global_id(); | |
348 | } | |
349 | ||
350 | if (return_next) { | |
351 | last_allocated_id = next_global_id; | |
352 | return next_global_id; | |
353 | } else { | |
354 | return 0; | |
355 | } | |
356 | } | |
357 | ||
358 | ||
359 | bool AuthMonitor::prep_auth(MonOpRequestRef op, bool paxos_writable) | |
360 | { | |
361 | MAuth *m = static_cast<MAuth*>(op->get_req()); | |
362 | dout(10) << "prep_auth() blob_size=" << m->get_auth_payload().length() << dendl; | |
363 | ||
364 | MonSession *s = op->get_session(); | |
365 | if (!s) { | |
366 | dout(10) << "no session, dropping" << dendl; | |
367 | return true; | |
368 | } | |
369 | ||
370 | int ret = 0; | |
371 | AuthCapsInfo caps_info; | |
372 | MAuthReply *reply; | |
373 | bufferlist response_bl; | |
374 | bufferlist::iterator indata = m->auth_payload.begin(); | |
375 | __u32 proto = m->protocol; | |
376 | bool start = false; | |
377 | EntityName entity_name; | |
378 | ||
379 | // set up handler? | |
380 | if (m->protocol == 0 && !s->auth_handler) { | |
381 | set<__u32> supported; | |
382 | ||
383 | try { | |
384 | __u8 struct_v = 1; | |
385 | ::decode(struct_v, indata); | |
386 | ::decode(supported, indata); | |
387 | ::decode(entity_name, indata); | |
388 | ::decode(s->global_id, indata); | |
389 | } catch (const buffer::error &e) { | |
390 | dout(10) << "failed to decode initial auth message" << dendl; | |
391 | ret = -EINVAL; | |
392 | goto reply; | |
393 | } | |
394 | ||
395 | // do we require cephx signatures? | |
396 | ||
397 | if (!m->get_connection()->has_feature(CEPH_FEATURE_MSG_AUTH)) { | |
398 | if (entity_name.get_type() == CEPH_ENTITY_TYPE_MON || | |
399 | entity_name.get_type() == CEPH_ENTITY_TYPE_OSD || | |
400 | entity_name.get_type() == CEPH_ENTITY_TYPE_MDS || | |
401 | entity_name.get_type() == CEPH_ENTITY_TYPE_MGR) { | |
402 | if (g_conf->cephx_cluster_require_signatures || | |
403 | g_conf->cephx_require_signatures) { | |
404 | dout(1) << m->get_source_inst() | |
405 | << " supports cephx but not signatures and" | |
406 | << " 'cephx [cluster] require signatures = true';" | |
407 | << " disallowing cephx" << dendl; | |
408 | supported.erase(CEPH_AUTH_CEPHX); | |
409 | } | |
410 | } else { | |
411 | if (g_conf->cephx_service_require_signatures || | |
412 | g_conf->cephx_require_signatures) { | |
413 | dout(1) << m->get_source_inst() | |
414 | << " supports cephx but not signatures and" | |
415 | << " 'cephx [service] require signatures = true';" | |
416 | << " disallowing cephx" << dendl; | |
417 | supported.erase(CEPH_AUTH_CEPHX); | |
418 | } | |
419 | } | |
420 | } | |
421 | ||
422 | int type; | |
423 | if (entity_name.get_type() == CEPH_ENTITY_TYPE_MON || | |
424 | entity_name.get_type() == CEPH_ENTITY_TYPE_OSD || | |
425 | entity_name.get_type() == CEPH_ENTITY_TYPE_MDS || | |
426 | entity_name.get_type() == CEPH_ENTITY_TYPE_MGR) | |
427 | type = mon->auth_cluster_required.pick(supported); | |
428 | else | |
429 | type = mon->auth_service_required.pick(supported); | |
430 | ||
431 | s->auth_handler = get_auth_service_handler(type, g_ceph_context, &mon->key_server); | |
432 | if (!s->auth_handler) { | |
433 | dout(1) << "client did not provide supported auth type" << dendl; | |
434 | ret = -ENOTSUP; | |
435 | goto reply; | |
436 | } | |
437 | start = true; | |
438 | } else if (!s->auth_handler) { | |
439 | dout(10) << "protocol specified but no s->auth_handler" << dendl; | |
440 | ret = -EINVAL; | |
441 | goto reply; | |
442 | } | |
443 | ||
444 | /* assign a new global_id? we assume this should only happen on the first | |
445 | request. If a client tries to send it later, it'll screw up its auth | |
446 | session */ | |
447 | if (!s->global_id) { | |
448 | s->global_id = assign_global_id(op, paxos_writable); | |
449 | if (!s->global_id) { | |
450 | ||
451 | delete s->auth_handler; | |
452 | s->auth_handler = NULL; | |
453 | ||
454 | if (mon->is_leader() && paxos_writable) { | |
455 | dout(10) << "increasing global id, waitlisting message" << dendl; | |
456 | wait_for_active(op, new C_RetryMessage(this, op)); | |
457 | goto done; | |
458 | } | |
459 | ||
460 | if (!mon->is_leader()) { | |
461 | dout(10) << "not the leader, requesting more ids from leader" << dendl; | |
462 | int leader = mon->get_leader(); | |
463 | MMonGlobalID *req = new MMonGlobalID(); | |
464 | req->old_max_id = max_global_id; | |
465 | mon->messenger->send_message(req, mon->monmap->get_inst(leader)); | |
466 | wait_for_finished_proposal(op, new C_RetryMessage(this, op)); | |
467 | return true; | |
468 | } | |
469 | ||
470 | assert(!paxos_writable); | |
471 | return false; | |
472 | } | |
473 | } | |
474 | ||
475 | try { | |
476 | uint64_t auid = 0; | |
477 | if (start) { | |
478 | // new session | |
479 | ||
480 | // always send the latest monmap. | |
481 | if (m->monmap_epoch < mon->monmap->get_epoch()) | |
482 | mon->send_latest_monmap(m->get_connection().get()); | |
483 | ||
484 | proto = s->auth_handler->start_session(entity_name, indata, response_bl, caps_info); | |
485 | ret = 0; | |
486 | if (caps_info.allow_all) | |
487 | s->caps.set_allow_all(); | |
488 | } else { | |
489 | // request | |
490 | ret = s->auth_handler->handle_request(indata, response_bl, s->global_id, caps_info, &auid); | |
491 | } | |
492 | if (ret == -EIO) { | |
493 | wait_for_active(op, new C_RetryMessage(this,op)); | |
494 | goto done; | |
495 | } | |
496 | if (caps_info.caps.length()) { | |
497 | bufferlist::iterator p = caps_info.caps.begin(); | |
498 | string str; | |
499 | try { | |
500 | ::decode(str, p); | |
501 | } catch (const buffer::error &err) { | |
502 | derr << "corrupt cap data for " << entity_name << " in auth db" << dendl; | |
503 | str.clear(); | |
504 | } | |
505 | s->caps.parse(str, NULL); | |
506 | s->auid = auid; | |
507 | } | |
508 | } catch (const buffer::error &err) { | |
509 | ret = -EINVAL; | |
510 | dout(0) << "caught error when trying to handle auth request, probably malformed request" << dendl; | |
511 | } | |
512 | ||
513 | reply: | |
514 | reply = new MAuthReply(proto, &response_bl, ret, s->global_id); | |
515 | mon->send_reply(op, reply); | |
516 | done: | |
517 | return true; | |
518 | } | |
519 | ||
520 | bool AuthMonitor::preprocess_command(MonOpRequestRef op) | |
521 | { | |
522 | MMonCommand *m = static_cast<MMonCommand*>(op->get_req()); | |
523 | int r = -1; | |
524 | bufferlist rdata; | |
525 | stringstream ss, ds; | |
526 | ||
527 | map<string, cmd_vartype> cmdmap; | |
528 | if (!cmdmap_from_json(m->cmd, &cmdmap, ss)) { | |
529 | // ss has reason for failure | |
530 | string rs = ss.str(); | |
531 | mon->reply_command(op, -EINVAL, rs, rdata, get_last_committed()); | |
532 | return true; | |
533 | } | |
534 | ||
535 | string prefix; | |
536 | cmd_getval(g_ceph_context, cmdmap, "prefix", prefix); | |
537 | if (prefix == "auth add" || | |
538 | prefix == "auth del" || | |
539 | prefix == "auth rm" || | |
540 | prefix == "auth get-or-create" || | |
541 | prefix == "auth get-or-create-key" || | |
542 | prefix == "fs authorize" || | |
543 | prefix == "auth import" || | |
544 | prefix == "auth caps") { | |
545 | return false; | |
546 | } | |
547 | ||
548 | MonSession *session = m->get_session(); | |
549 | if (!session) { | |
550 | mon->reply_command(op, -EACCES, "access denied", rdata, get_last_committed()); | |
551 | return true; | |
552 | } | |
553 | ||
554 | // entity might not be supplied, but if it is, it should be valid | |
555 | string entity_name; | |
556 | cmd_getval(g_ceph_context, cmdmap, "entity", entity_name); | |
557 | EntityName entity; | |
558 | if (!entity_name.empty() && !entity.from_str(entity_name)) { | |
559 | ss << "invalid entity_auth " << entity_name; | |
560 | mon->reply_command(op, -EINVAL, ss.str(), get_last_committed()); | |
561 | return true; | |
562 | } | |
563 | ||
564 | string format; | |
565 | cmd_getval(g_ceph_context, cmdmap, "format", format, string("plain")); | |
566 | boost::scoped_ptr<Formatter> f(Formatter::create(format)); | |
567 | ||
568 | if (prefix == "auth export") { | |
569 | KeyRing keyring; | |
570 | export_keyring(keyring); | |
571 | if (!entity_name.empty()) { | |
572 | EntityAuth eauth; | |
573 | if (keyring.get_auth(entity, eauth)) { | |
574 | KeyRing kr; | |
575 | kr.add(entity, eauth); | |
576 | if (f) | |
577 | kr.encode_formatted("auth", f.get(), rdata); | |
578 | else | |
579 | kr.encode_plaintext(rdata); | |
580 | ss << "export " << eauth; | |
581 | r = 0; | |
582 | } else { | |
583 | ss << "no key for " << eauth; | |
584 | r = -ENOENT; | |
585 | } | |
586 | } else { | |
587 | if (f) | |
588 | keyring.encode_formatted("auth", f.get(), rdata); | |
589 | else | |
590 | keyring.encode_plaintext(rdata); | |
591 | ||
592 | ss << "exported master keyring"; | |
593 | r = 0; | |
594 | } | |
595 | } else if (prefix == "auth get" && !entity_name.empty()) { | |
596 | KeyRing keyring; | |
597 | EntityAuth entity_auth; | |
598 | if(!mon->key_server.get_auth(entity, entity_auth)) { | |
599 | ss << "failed to find " << entity_name << " in keyring"; | |
600 | r = -ENOENT; | |
601 | } else { | |
602 | keyring.add(entity, entity_auth); | |
603 | if (f) | |
604 | keyring.encode_formatted("auth", f.get(), rdata); | |
605 | else | |
606 | keyring.encode_plaintext(rdata); | |
607 | ss << "exported keyring for " << entity_name; | |
608 | r = 0; | |
609 | } | |
610 | } else if (prefix == "auth print-key" || | |
611 | prefix == "auth print_key" || | |
612 | prefix == "auth get-key") { | |
613 | EntityAuth auth; | |
614 | if (!mon->key_server.get_auth(entity, auth)) { | |
615 | ss << "don't have " << entity; | |
616 | r = -ENOENT; | |
617 | goto done; | |
618 | } | |
619 | if (f) { | |
620 | auth.key.encode_formatted("auth", f.get(), rdata); | |
621 | } else { | |
622 | auth.key.encode_plaintext(rdata); | |
623 | } | |
624 | r = 0; | |
625 | } else if (prefix == "auth list" || | |
626 | prefix == "auth ls") { | |
627 | if (f) { | |
628 | mon->key_server.encode_formatted("auth", f.get(), rdata); | |
629 | } else { | |
630 | mon->key_server.encode_plaintext(rdata); | |
631 | if (rdata.length() > 0) | |
632 | ss << "installed auth entries:" << std::endl; | |
633 | else | |
634 | ss << "no installed auth entries!" << std::endl; | |
635 | } | |
636 | r = 0; | |
637 | goto done; | |
638 | } else { | |
639 | ss << "invalid command"; | |
640 | r = -EINVAL; | |
641 | } | |
642 | ||
643 | done: | |
644 | rdata.append(ds); | |
645 | string rs; | |
646 | getline(ss, rs, '\0'); | |
647 | mon->reply_command(op, r, rs, rdata, get_last_committed()); | |
648 | return true; | |
649 | } | |
650 | ||
651 | void AuthMonitor::export_keyring(KeyRing& keyring) | |
652 | { | |
653 | mon->key_server.export_keyring(keyring); | |
654 | } | |
655 | ||
656 | int AuthMonitor::import_keyring(KeyRing& keyring) | |
657 | { | |
658 | for (map<EntityName, EntityAuth>::iterator p = keyring.get_keys().begin(); | |
659 | p != keyring.get_keys().end(); | |
660 | ++p) { | |
661 | if (p->second.caps.empty()) { | |
662 | dout(0) << "import: no caps supplied" << dendl; | |
663 | return -EINVAL; | |
664 | } | |
665 | int err = add_entity(p->first, p->second); | |
666 | assert(err == 0); | |
667 | } | |
668 | return 0; | |
669 | } | |
670 | ||
671 | int AuthMonitor::remove_entity(const EntityName &entity) | |
672 | { | |
673 | dout(10) << __func__ << " " << entity << dendl; | |
674 | if (!mon->key_server.contains(entity)) | |
675 | return -ENOENT; | |
676 | ||
677 | KeyServerData::Incremental auth_inc; | |
678 | auth_inc.name = entity; | |
679 | auth_inc.op = KeyServerData::AUTH_INC_DEL; | |
680 | push_cephx_inc(auth_inc); | |
681 | ||
682 | return 0; | |
683 | } | |
684 | ||
685 | bool AuthMonitor::entity_is_pending(EntityName& entity) | |
686 | { | |
687 | // are we about to have it? | |
688 | for (auto& p : pending_auth) { | |
689 | if (p.inc_type == AUTH_DATA) { | |
690 | KeyServerData::Incremental inc; | |
691 | bufferlist::iterator q = p.auth_data.begin(); | |
692 | ::decode(inc, q); | |
693 | if (inc.op == KeyServerData::AUTH_INC_ADD && | |
694 | inc.name == entity) { | |
695 | return true; | |
696 | } | |
697 | } | |
698 | } | |
699 | return false; | |
700 | } | |
701 | ||
702 | int AuthMonitor::exists_and_matches_entity( | |
703 | const auth_entity_t& entity, | |
704 | bool has_secret, | |
705 | stringstream& ss) | |
706 | { | |
707 | return exists_and_matches_entity(entity.name, entity.auth, | |
708 | entity.auth.caps, has_secret, ss); | |
709 | } | |
710 | ||
711 | int AuthMonitor::exists_and_matches_entity( | |
712 | const EntityName& name, | |
713 | const EntityAuth& auth, | |
714 | const map<string,bufferlist>& caps, | |
715 | bool has_secret, | |
716 | stringstream& ss) | |
717 | { | |
718 | ||
719 | dout(20) << __func__ << " entity " << name << " auth " << auth | |
720 | << " caps " << caps << " has_secret " << has_secret << dendl; | |
721 | ||
722 | EntityAuth existing_auth; | |
723 | // does entry already exist? | |
724 | if (mon->key_server.get_auth(name, existing_auth)) { | |
725 | // key match? | |
726 | if (has_secret) { | |
727 | if (existing_auth.key.get_secret().cmp(auth.key.get_secret())) { | |
728 | ss << "entity " << name << " exists but key does not match"; | |
729 | return -EEXIST; | |
730 | } | |
731 | } | |
732 | ||
733 | // caps match? | |
734 | if (caps.size() != existing_auth.caps.size()) { | |
735 | ss << "entity " << name << " exists but caps do not match"; | |
736 | return -EINVAL; | |
737 | } | |
738 | for (auto& it : caps) { | |
739 | if (existing_auth.caps.count(it.first) == 0 || | |
740 | !existing_auth.caps[it.first].contents_equal(it.second)) { | |
741 | ss << "entity " << name << " exists but cap " | |
742 | << it.first << " does not match"; | |
743 | return -EINVAL; | |
744 | } | |
745 | } | |
746 | ||
747 | // they match, no-op | |
748 | return 0; | |
749 | } | |
750 | return -ENOENT; | |
751 | } | |
752 | ||
753 | int AuthMonitor::add_entity( | |
754 | const EntityName& name, | |
755 | const EntityAuth& auth) | |
756 | { | |
757 | ||
758 | // okay, add it. | |
759 | KeyServerData::Incremental auth_inc; | |
760 | auth_inc.op = KeyServerData::AUTH_INC_ADD; | |
761 | auth_inc.name = name; | |
762 | auth_inc.auth = auth; | |
763 | ||
764 | dout(10) << " importing " << auth_inc.name << dendl; | |
765 | dout(30) << " " << auth_inc.auth << dendl; | |
766 | push_cephx_inc(auth_inc); | |
767 | return 0; | |
768 | } | |
769 | ||
770 | int AuthMonitor::validate_osd_destroy( | |
771 | int32_t id, | |
772 | const uuid_d& uuid, | |
773 | EntityName& cephx_entity, | |
774 | EntityName& lockbox_entity, | |
775 | stringstream& ss) | |
776 | { | |
777 | assert(paxos->is_plugged()); | |
778 | ||
779 | dout(10) << __func__ << " id " << id << " uuid " << uuid << dendl; | |
780 | ||
781 | string cephx_str = "osd." + stringify(id); | |
782 | string lockbox_str = "client.osd-lockbox." + stringify(uuid); | |
783 | ||
784 | if (!cephx_entity.from_str(cephx_str)) { | |
785 | dout(10) << __func__ << " invalid cephx entity '" | |
786 | << cephx_str << "'" << dendl; | |
787 | ss << "invalid cephx key entity '" << cephx_str << "'"; | |
788 | return -EINVAL; | |
789 | } | |
790 | ||
791 | if (!lockbox_entity.from_str(lockbox_str)) { | |
792 | dout(10) << __func__ << " invalid lockbox entity '" | |
793 | << lockbox_str << "'" << dendl; | |
794 | ss << "invalid lockbox key entity '" << lockbox_str << "'"; | |
795 | return -EINVAL; | |
796 | } | |
797 | ||
798 | if (!mon->key_server.contains(cephx_entity) && | |
799 | !mon->key_server.contains(lockbox_entity)) { | |
800 | return -ENOENT; | |
801 | } | |
802 | ||
803 | return 0; | |
804 | } | |
805 | ||
806 | int AuthMonitor::do_osd_destroy( | |
807 | const EntityName& cephx_entity, | |
808 | const EntityName& lockbox_entity) | |
809 | { | |
810 | assert(paxos->is_plugged()); | |
811 | ||
812 | dout(10) << __func__ << " cephx " << cephx_entity | |
813 | << " lockbox " << lockbox_entity << dendl; | |
814 | ||
815 | bool removed = false; | |
816 | ||
817 | int err = remove_entity(cephx_entity); | |
818 | if (err == -ENOENT) { | |
819 | dout(10) << __func__ << " " << cephx_entity << " does not exist" << dendl; | |
820 | } else { | |
821 | removed = true; | |
822 | } | |
823 | ||
824 | err = remove_entity(lockbox_entity); | |
825 | if (err == -ENOENT) { | |
826 | dout(10) << __func__ << " " << lockbox_entity << " does not exist" << dendl; | |
827 | } else { | |
828 | removed = true; | |
829 | } | |
830 | ||
831 | if (!removed) { | |
832 | dout(10) << __func__ << " entities do not exist -- no-op." << dendl; | |
833 | return 0; | |
834 | } | |
835 | ||
836 | // given we have paxos plugged, this will not result in a proposal | |
837 | // being triggered, but it will still be needed so that we get our | |
838 | // pending state encoded into the paxos' pending transaction. | |
839 | propose_pending(); | |
840 | return 0; | |
841 | } | |
842 | ||
843 | bufferlist _encode_cap(const string& cap) | |
844 | { | |
845 | bufferlist bl; | |
846 | ::encode(cap, bl); | |
847 | return bl; | |
848 | } | |
849 | ||
850 | int _create_auth( | |
851 | EntityAuth& auth, | |
852 | const string& key, | |
853 | const map<string,bufferlist>& caps) | |
854 | { | |
855 | if (key.empty()) | |
856 | return -EINVAL; | |
857 | try { | |
858 | auth.key.decode_base64(key); | |
859 | } catch (buffer::error& e) { | |
860 | return -EINVAL; | |
861 | } | |
862 | auth.caps = caps; | |
863 | return 0; | |
864 | } | |
865 | ||
866 | int AuthMonitor::validate_osd_new( | |
867 | int32_t id, | |
868 | const uuid_d& uuid, | |
869 | const string& cephx_secret, | |
870 | const string& lockbox_secret, | |
871 | auth_entity_t& cephx_entity, | |
872 | auth_entity_t& lockbox_entity, | |
873 | stringstream& ss) | |
874 | { | |
875 | ||
876 | dout(10) << __func__ << " osd." << id << " uuid " << uuid << dendl; | |
877 | ||
878 | map<string,bufferlist> cephx_caps = { | |
879 | { "osd", _encode_cap("allow *") }, | |
880 | { "mon", _encode_cap("allow profile osd") }, | |
881 | { "mgr", _encode_cap("allow profile osd") } | |
882 | }; | |
883 | map<string,bufferlist> lockbox_caps = { | |
884 | { "mon", _encode_cap("allow command \"config-key get\" " | |
885 | "with key=\"dm-crypt/osd/" + | |
886 | stringify(uuid) + | |
887 | "/luks\"") } | |
888 | }; | |
889 | ||
890 | bool has_lockbox = !lockbox_secret.empty(); | |
891 | ||
892 | string cephx_name = "osd." + stringify(id); | |
893 | string lockbox_name = "client.osd-lockbox." + stringify(uuid); | |
894 | ||
895 | if (!cephx_entity.name.from_str(cephx_name)) { | |
896 | dout(10) << __func__ << " invalid cephx entity '" | |
897 | << cephx_name << "'" << dendl; | |
898 | ss << "invalid cephx key entity '" << cephx_name << "'"; | |
899 | return -EINVAL; | |
900 | } | |
901 | ||
902 | if (has_lockbox) { | |
903 | if (!lockbox_entity.name.from_str(lockbox_name)) { | |
904 | dout(10) << __func__ << " invalid cephx lockbox entity '" | |
905 | << lockbox_name << "'" << dendl; | |
906 | ss << "invalid cephx lockbox entity '" << lockbox_name << "'"; | |
907 | return -EINVAL; | |
908 | } | |
909 | } | |
910 | ||
911 | if (entity_is_pending(cephx_entity.name) || | |
912 | (has_lockbox && entity_is_pending(lockbox_entity.name))) { | |
913 | // If we have pending entities for either the cephx secret or the | |
914 | // lockbox secret, then our safest bet is to retry the command at | |
915 | // a later time. These entities may be pending because an `osd new` | |
916 | // command has been run (which is unlikely, due to the nature of | |
917 | // the operation, which will force a paxos proposal), or (more likely) | |
918 | // because a competing client created those entities before we handled | |
919 | // the `osd new` command. Regardless, let's wait and see. | |
920 | return -EAGAIN; | |
921 | } | |
922 | ||
923 | if (!is_valid_cephx_key(cephx_secret)) { | |
924 | ss << "invalid cephx secret."; | |
925 | return -EINVAL; | |
926 | } | |
927 | ||
928 | if (has_lockbox && !is_valid_cephx_key(lockbox_secret)) { | |
929 | ss << "invalid cephx lockbox secret."; | |
930 | return -EINVAL; | |
931 | } | |
932 | ||
933 | int err = _create_auth(cephx_entity.auth, cephx_secret, cephx_caps); | |
934 | assert(0 == err); | |
935 | ||
936 | bool cephx_is_idempotent = false, lockbox_is_idempotent = false; | |
937 | err = exists_and_matches_entity(cephx_entity, true, ss); | |
938 | ||
939 | if (err != -ENOENT) { | |
940 | if (err < 0) { | |
941 | return err; | |
942 | } | |
943 | assert(0 == err); | |
944 | cephx_is_idempotent = true; | |
945 | } | |
946 | ||
947 | if (has_lockbox) { | |
948 | err = _create_auth(lockbox_entity.auth, lockbox_secret, lockbox_caps); | |
949 | assert(err == 0); | |
950 | err = exists_and_matches_entity(lockbox_entity, true, ss); | |
951 | if (err != -ENOENT) { | |
952 | if (err < 0) { | |
953 | return err; | |
954 | } | |
955 | assert(0 == err); | |
956 | lockbox_is_idempotent = true; | |
957 | } | |
958 | } | |
959 | ||
960 | if (cephx_is_idempotent && (!has_lockbox || lockbox_is_idempotent)) { | |
961 | return EEXIST; | |
962 | } | |
963 | ||
964 | return 0; | |
965 | } | |
966 | ||
967 | int AuthMonitor::do_osd_new( | |
968 | const auth_entity_t& cephx_entity, | |
969 | const auth_entity_t& lockbox_entity, | |
970 | bool has_lockbox) | |
971 | { | |
972 | assert(paxos->is_plugged()); | |
973 | ||
974 | dout(10) << __func__ << " cephx " << cephx_entity.name | |
975 | << " lockbox "; | |
976 | if (has_lockbox) { | |
977 | *_dout << lockbox_entity.name; | |
978 | } else { | |
979 | *_dout << "n/a"; | |
980 | } | |
981 | *_dout << dendl; | |
982 | ||
983 | // we must have validated before reaching this point. | |
984 | // if keys exist, then this means they also match; otherwise we would | |
985 | // have failed before calling this function. | |
986 | bool cephx_exists = mon->key_server.contains(cephx_entity.name); | |
987 | ||
988 | if (!cephx_exists) { | |
989 | int err = add_entity(cephx_entity.name, cephx_entity.auth); | |
990 | assert(0 == err); | |
991 | } | |
992 | ||
993 | if (has_lockbox && | |
994 | !mon->key_server.contains(lockbox_entity.name)) { | |
995 | int err = add_entity(lockbox_entity.name, lockbox_entity.auth); | |
996 | assert(0 == err); | |
997 | } | |
998 | ||
999 | // given we have paxos plugged, this will not result in a proposal | |
1000 | // being triggered, but it will still be needed so that we get our | |
1001 | // pending state encoded into the paxos' pending transaction. | |
1002 | propose_pending(); | |
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | bool AuthMonitor::prepare_command(MonOpRequestRef op) | |
1007 | { | |
1008 | MMonCommand *m = static_cast<MMonCommand*>(op->get_req()); | |
1009 | stringstream ss, ds; | |
1010 | bufferlist rdata; | |
1011 | string rs; | |
1012 | int err = -EINVAL; | |
1013 | ||
1014 | map<string, cmd_vartype> cmdmap; | |
1015 | if (!cmdmap_from_json(m->cmd, &cmdmap, ss)) { | |
1016 | // ss has reason for failure | |
1017 | string rs = ss.str(); | |
1018 | mon->reply_command(op, -EINVAL, rs, rdata, get_last_committed()); | |
1019 | return true; | |
1020 | } | |
1021 | ||
1022 | string prefix; | |
1023 | vector<string>caps_vec; | |
1024 | string entity_name; | |
1025 | EntityName entity; | |
1026 | ||
1027 | cmd_getval(g_ceph_context, cmdmap, "prefix", prefix); | |
1028 | ||
1029 | string format; | |
1030 | cmd_getval(g_ceph_context, cmdmap, "format", format, string("plain")); | |
1031 | boost::scoped_ptr<Formatter> f(Formatter::create(format)); | |
1032 | ||
1033 | MonSession *session = m->get_session(); | |
1034 | if (!session) { | |
1035 | mon->reply_command(op, -EACCES, "access denied", rdata, get_last_committed()); | |
1036 | return true; | |
1037 | } | |
1038 | ||
1039 | cmd_getval(g_ceph_context, cmdmap, "caps", caps_vec); | |
1040 | if ((caps_vec.size() % 2) != 0) { | |
1041 | ss << "bad capabilities request; odd number of arguments"; | |
1042 | err = -EINVAL; | |
1043 | goto done; | |
1044 | } | |
1045 | ||
1046 | cmd_getval(g_ceph_context, cmdmap, "entity", entity_name); | |
1047 | if (!entity_name.empty() && !entity.from_str(entity_name)) { | |
1048 | ss << "bad entity name"; | |
1049 | err = -EINVAL; | |
1050 | goto done; | |
1051 | } | |
1052 | ||
1053 | if (prefix == "auth import") { | |
1054 | bufferlist bl = m->get_data(); | |
1055 | if (bl.length() == 0) { | |
1056 | ss << "auth import: no data supplied"; | |
1057 | getline(ss, rs); | |
1058 | mon->reply_command(op, -EINVAL, rs, get_last_committed()); | |
1059 | return true; | |
1060 | } | |
1061 | bufferlist::iterator iter = bl.begin(); | |
1062 | KeyRing keyring; | |
1063 | try { | |
1064 | ::decode(keyring, iter); | |
1065 | } catch (const buffer::error &ex) { | |
1066 | ss << "error decoding keyring" << " " << ex.what(); | |
1067 | err = -EINVAL; | |
1068 | goto done; | |
1069 | } | |
1070 | err = import_keyring(keyring); | |
1071 | if (err < 0) { | |
1072 | ss << "auth import: no caps supplied"; | |
1073 | getline(ss, rs); | |
1074 | mon->reply_command(op, -EINVAL, rs, get_last_committed()); | |
1075 | return true; | |
1076 | } | |
1077 | ss << "imported keyring"; | |
1078 | getline(ss, rs); | |
1079 | err = 0; | |
1080 | wait_for_finished_proposal(op, new Monitor::C_Command(mon, op, 0, rs, | |
1081 | get_last_committed() + 1)); | |
1082 | return true; | |
1083 | } else if (prefix == "auth add" && !entity_name.empty()) { | |
1084 | /* expected behavior: | |
1085 | * - if command reproduces current state, return 0. | |
1086 | * - if command adds brand new entity, handle it. | |
1087 | * - if command adds new state to existing entity, return error. | |
1088 | */ | |
1089 | KeyServerData::Incremental auth_inc; | |
1090 | auth_inc.name = entity; | |
1091 | bufferlist bl = m->get_data(); | |
1092 | bool has_keyring = (bl.length() > 0); | |
1093 | map<string,bufferlist> new_caps; | |
1094 | ||
1095 | KeyRing new_keyring; | |
1096 | if (has_keyring) { | |
1097 | bufferlist::iterator iter = bl.begin(); | |
1098 | try { | |
1099 | ::decode(new_keyring, iter); | |
1100 | } catch (const buffer::error &ex) { | |
1101 | ss << "error decoding keyring"; | |
1102 | err = -EINVAL; | |
1103 | goto done; | |
1104 | } | |
1105 | } | |
1106 | ||
1107 | // are we about to have it? | |
1108 | if (entity_is_pending(entity)) { | |
1109 | wait_for_finished_proposal(op, | |
1110 | new Monitor::C_Command(mon, op, 0, rs, get_last_committed() + 1)); | |
1111 | return true; | |
1112 | } | |
1113 | ||
1114 | // build new caps from provided arguments (if available) | |
1115 | for (vector<string>::iterator it = caps_vec.begin(); | |
1116 | it != caps_vec.end() && (it + 1) != caps_vec.end(); | |
1117 | it += 2) { | |
1118 | string sys = *it; | |
1119 | bufferlist cap; | |
1120 | ::encode(*(it+1), cap); | |
1121 | new_caps[sys] = cap; | |
1122 | } | |
1123 | ||
1124 | // pull info out of provided keyring | |
1125 | EntityAuth new_inc; | |
1126 | if (has_keyring) { | |
1127 | if (!new_keyring.get_auth(auth_inc.name, new_inc)) { | |
1128 | ss << "key for " << auth_inc.name | |
1129 | << " not found in provided keyring"; | |
1130 | err = -EINVAL; | |
1131 | goto done; | |
1132 | } | |
1133 | if (!new_caps.empty() && !new_inc.caps.empty()) { | |
1134 | ss << "caps cannot be specified both in keyring and in command"; | |
1135 | err = -EINVAL; | |
1136 | goto done; | |
1137 | } | |
1138 | if (new_caps.empty()) { | |
1139 | new_caps = new_inc.caps; | |
1140 | } | |
1141 | } | |
1142 | ||
1143 | err = exists_and_matches_entity(auth_inc.name, new_inc, | |
1144 | new_caps, has_keyring, ss); | |
1145 | // if entity/key/caps do not exist in the keyring, just fall through | |
1146 | // and add the entity; otherwise, make sure everything matches (in | |
1147 | // which case it's a no-op), because if not we must fail. | |
1148 | if (err != -ENOENT) { | |
1149 | if (err < 0) { | |
1150 | goto done; | |
1151 | } | |
1152 | // no-op. | |
1153 | assert(err == 0); | |
1154 | goto done; | |
1155 | } | |
1156 | err = 0; | |
1157 | ||
1158 | // okay, add it. | |
1159 | if (!has_keyring) { | |
1160 | dout(10) << "AuthMonitor::prepare_command generating random key for " | |
1161 | << auth_inc.name << dendl; | |
1162 | new_inc.key.create(g_ceph_context, CEPH_CRYPTO_AES); | |
1163 | } | |
1164 | new_inc.caps = new_caps; | |
1165 | ||
1166 | err = add_entity(auth_inc.name, new_inc); | |
1167 | assert(err == 0); | |
1168 | ||
1169 | ss << "added key for " << auth_inc.name; | |
1170 | getline(ss, rs); | |
1171 | wait_for_finished_proposal(op, new Monitor::C_Command(mon, op, 0, rs, | |
1172 | get_last_committed() + 1)); | |
1173 | return true; | |
1174 | } else if ((prefix == "auth get-or-create-key" || | |
1175 | prefix == "auth get-or-create") && | |
1176 | !entity_name.empty()) { | |
1177 | // auth get-or-create <name> [mon osdcapa osd osdcapb ...] | |
1178 | ||
1179 | if (!valid_caps(caps_vec, &ss)) { | |
1180 | err = -EINVAL; | |
1181 | goto done; | |
1182 | } | |
1183 | ||
1184 | // Parse the list of caps into a map | |
1185 | std::map<std::string, bufferlist> wanted_caps; | |
1186 | for (vector<string>::const_iterator it = caps_vec.begin(); | |
1187 | it != caps_vec.end() && (it + 1) != caps_vec.end(); | |
1188 | it += 2) { | |
1189 | const std::string &sys = *it; | |
1190 | bufferlist cap; | |
1191 | ::encode(*(it+1), cap); | |
1192 | wanted_caps[sys] = cap; | |
1193 | } | |
1194 | ||
1195 | // do we have it? | |
1196 | EntityAuth entity_auth; | |
1197 | if (mon->key_server.get_auth(entity, entity_auth)) { | |
1198 | for (const auto &sys_cap : wanted_caps) { | |
1199 | if (entity_auth.caps.count(sys_cap.first) == 0 || | |
1200 | !entity_auth.caps[sys_cap.first].contents_equal(sys_cap.second)) { | |
1201 | ss << "key for " << entity << " exists but cap " << sys_cap.first | |
1202 | << " does not match"; | |
1203 | err = -EINVAL; | |
1204 | goto done; | |
1205 | } | |
1206 | } | |
1207 | ||
1208 | if (prefix == "auth get-or-create-key") { | |
1209 | if (f) { | |
1210 | entity_auth.key.encode_formatted("auth", f.get(), rdata); | |
1211 | } else { | |
1212 | ds << entity_auth.key; | |
1213 | } | |
1214 | } else { | |
1215 | KeyRing kr; | |
1216 | kr.add(entity, entity_auth.key); | |
1217 | if (f) { | |
1218 | kr.set_caps(entity, entity_auth.caps); | |
1219 | kr.encode_formatted("auth", f.get(), rdata); | |
1220 | } else { | |
1221 | kr.encode_plaintext(rdata); | |
1222 | } | |
1223 | } | |
1224 | err = 0; | |
1225 | goto done; | |
1226 | } | |
1227 | ||
1228 | // ...or are we about to? | |
1229 | for (vector<Incremental>::iterator p = pending_auth.begin(); | |
1230 | p != pending_auth.end(); | |
1231 | ++p) { | |
1232 | if (p->inc_type == AUTH_DATA) { | |
1233 | KeyServerData::Incremental auth_inc; | |
1234 | bufferlist::iterator q = p->auth_data.begin(); | |
1235 | ::decode(auth_inc, q); | |
1236 | if (auth_inc.op == KeyServerData::AUTH_INC_ADD && | |
1237 | auth_inc.name == entity) { | |
1238 | wait_for_finished_proposal(op, new Monitor::C_Command(mon, op, 0, rs, | |
1239 | get_last_committed() + 1)); | |
1240 | return true; | |
1241 | } | |
1242 | } | |
1243 | } | |
1244 | ||
1245 | // create it | |
1246 | KeyServerData::Incremental auth_inc; | |
1247 | auth_inc.op = KeyServerData::AUTH_INC_ADD; | |
1248 | auth_inc.name = entity; | |
1249 | auth_inc.auth.key.create(g_ceph_context, CEPH_CRYPTO_AES); | |
1250 | auth_inc.auth.caps = wanted_caps; | |
1251 | ||
1252 | push_cephx_inc(auth_inc); | |
1253 | ||
1254 | if (prefix == "auth get-or-create-key") { | |
1255 | if (f) { | |
1256 | auth_inc.auth.key.encode_formatted("auth", f.get(), rdata); | |
1257 | } else { | |
1258 | ds << auth_inc.auth.key; | |
1259 | } | |
1260 | } else { | |
1261 | KeyRing kr; | |
1262 | kr.add(entity, auth_inc.auth.key); | |
1263 | if (f) { | |
1264 | kr.set_caps(entity, wanted_caps); | |
1265 | kr.encode_formatted("auth", f.get(), rdata); | |
1266 | } else { | |
1267 | kr.encode_plaintext(rdata); | |
1268 | } | |
1269 | } | |
1270 | ||
1271 | rdata.append(ds); | |
1272 | getline(ss, rs); | |
1273 | wait_for_finished_proposal(op, new Monitor::C_Command(mon, op, 0, rs, rdata, | |
1274 | get_last_committed() + 1)); | |
1275 | return true; | |
1276 | } else if (prefix == "fs authorize") { | |
1277 | string filesystem; | |
1278 | cmd_getval(g_ceph_context, cmdmap, "filesystem", filesystem); | |
1279 | string mds_cap_string, osd_cap_string; | |
1280 | string osd_cap_wanted = "r"; | |
1281 | ||
1282 | for (auto it = caps_vec.begin(); | |
1283 | it != caps_vec.end() && (it + 1) != caps_vec.end(); | |
1284 | it += 2) { | |
1285 | const string &path = *it; | |
1286 | const string &cap = *(it+1); | |
1287 | if (cap != "r" && cap != "rw" && cap != "rwp") { | |
1288 | ss << "Only 'r', 'rw', and 'rwp' permissions are allowed for filesystems."; | |
1289 | err = -EINVAL; | |
1290 | goto done; | |
1291 | } | |
1292 | if (cap.find('w') != string::npos) { | |
1293 | osd_cap_wanted = "rw"; | |
1294 | } | |
1295 | ||
1296 | mds_cap_string += mds_cap_string.empty() ? "" : ", "; | |
1297 | mds_cap_string += "allow " + cap; | |
1298 | if (path != "/") { | |
1299 | mds_cap_string += " path=" + path; | |
1300 | } | |
1301 | } | |
1302 | ||
1303 | auto fs = mon->mdsmon()->get_fsmap().get_filesystem(filesystem); | |
1304 | if (!fs) { | |
1305 | ss << "filesystem " << filesystem << " does not exist."; | |
1306 | err = -EINVAL; | |
1307 | goto done; | |
1308 | } | |
1309 | ||
1310 | auto data_pools = fs->mds_map.get_data_pools(); | |
1311 | for (auto p : data_pools) { | |
1312 | const string &pool_name = mon->osdmon()->osdmap.get_pool_name(p); | |
1313 | osd_cap_string += osd_cap_string.empty() ? "" : ", "; | |
1314 | osd_cap_string += "allow " + osd_cap_wanted + " pool=" + pool_name; | |
1315 | } | |
1316 | ||
1317 | std::map<string, bufferlist> wanted_caps = { | |
1318 | { "mon", _encode_cap("allow r") }, | |
1319 | { "osd", _encode_cap(osd_cap_string) }, | |
1320 | { "mds", _encode_cap(mds_cap_string) } | |
1321 | }; | |
1322 | ||
1323 | EntityAuth entity_auth; | |
1324 | if (mon->key_server.get_auth(entity, entity_auth)) { | |
1325 | for (const auto &sys_cap : wanted_caps) { | |
1326 | if (entity_auth.caps.count(sys_cap.first) == 0 || | |
1327 | !entity_auth.caps[sys_cap.first].contents_equal(sys_cap.second)) { | |
1328 | ss << "key for " << entity << " exists but cap " << sys_cap.first | |
1329 | << " does not match"; | |
1330 | err = -EINVAL; | |
1331 | goto done; | |
1332 | } | |
1333 | } | |
1334 | ||
1335 | KeyRing kr; | |
1336 | kr.add(entity, entity_auth.key); | |
1337 | if (f) { | |
1338 | kr.set_caps(entity, entity_auth.caps); | |
1339 | kr.encode_formatted("auth", f.get(), rdata); | |
1340 | } else { | |
1341 | kr.encode_plaintext(rdata); | |
1342 | } | |
1343 | err = 0; | |
1344 | goto done; | |
1345 | } | |
1346 | ||
1347 | KeyServerData::Incremental auth_inc; | |
1348 | auth_inc.op = KeyServerData::AUTH_INC_ADD; | |
1349 | auth_inc.name = entity; | |
1350 | auth_inc.auth.key.create(g_ceph_context, CEPH_CRYPTO_AES); | |
1351 | auth_inc.auth.caps = wanted_caps; | |
1352 | ||
1353 | push_cephx_inc(auth_inc); | |
1354 | KeyRing kr; | |
1355 | kr.add(entity, auth_inc.auth.key); | |
1356 | if (f) { | |
1357 | kr.set_caps(entity, wanted_caps); | |
1358 | kr.encode_formatted("auth", f.get(), rdata); | |
1359 | } else { | |
1360 | kr.encode_plaintext(rdata); | |
1361 | } | |
1362 | ||
1363 | rdata.append(ds); | |
1364 | getline(ss, rs); | |
1365 | wait_for_finished_proposal(op, new Monitor::C_Command(mon, op, 0, rs, rdata, | |
1366 | get_last_committed() + 1)); | |
1367 | return true; | |
1368 | } else if (prefix == "auth caps" && !entity_name.empty()) { | |
1369 | KeyServerData::Incremental auth_inc; | |
1370 | auth_inc.name = entity; | |
1371 | if (!mon->key_server.get_auth(auth_inc.name, auth_inc.auth)) { | |
1372 | ss << "couldn't find entry " << auth_inc.name; | |
1373 | err = -ENOENT; | |
1374 | goto done; | |
1375 | } | |
1376 | ||
1377 | if (!valid_caps(caps_vec, &ss)) { | |
1378 | err = -EINVAL; | |
1379 | goto done; | |
1380 | } | |
1381 | ||
1382 | map<string,bufferlist> newcaps; | |
1383 | for (vector<string>::iterator it = caps_vec.begin(); | |
1384 | it != caps_vec.end(); it += 2) | |
1385 | ::encode(*(it+1), newcaps[*it]); | |
1386 | ||
1387 | auth_inc.op = KeyServerData::AUTH_INC_ADD; | |
1388 | auth_inc.auth.caps = newcaps; | |
1389 | push_cephx_inc(auth_inc); | |
1390 | ||
1391 | ss << "updated caps for " << auth_inc.name; | |
1392 | getline(ss, rs); | |
1393 | wait_for_finished_proposal(op, new Monitor::C_Command(mon, op, 0, rs, | |
1394 | get_last_committed() + 1)); | |
1395 | return true; | |
1396 | } else if ((prefix == "auth del" || prefix == "auth rm") && | |
1397 | !entity_name.empty()) { | |
1398 | KeyServerData::Incremental auth_inc; | |
1399 | auth_inc.name = entity; | |
1400 | if (!mon->key_server.contains(auth_inc.name)) { | |
1401 | ss << "entity " << entity << " does not exist"; | |
1402 | err = 0; | |
1403 | goto done; | |
1404 | } | |
1405 | auth_inc.op = KeyServerData::AUTH_INC_DEL; | |
1406 | push_cephx_inc(auth_inc); | |
1407 | ||
1408 | ss << "updated"; | |
1409 | getline(ss, rs); | |
1410 | wait_for_finished_proposal(op, new Monitor::C_Command(mon, op, 0, rs, | |
1411 | get_last_committed() + 1)); | |
1412 | return true; | |
1413 | } | |
1414 | done: | |
1415 | rdata.append(ds); | |
1416 | getline(ss, rs, '\0'); | |
1417 | mon->reply_command(op, err, rs, rdata, get_last_committed()); | |
1418 | return false; | |
1419 | } | |
1420 | ||
1421 | bool AuthMonitor::prepare_global_id(MonOpRequestRef op) | |
1422 | { | |
1423 | dout(10) << "AuthMonitor::prepare_global_id" << dendl; | |
1424 | increase_max_global_id(); | |
1425 | ||
1426 | return true; | |
1427 | } | |
1428 | ||
1429 | void AuthMonitor::upgrade_format() | |
1430 | { | |
1431 | unsigned int current = 2; | |
1432 | if (!mon->get_quorum_mon_features().contains_all( | |
1433 | ceph::features::mon::FEATURE_LUMINOUS)) { | |
1434 | current = 1; | |
1435 | } | |
1436 | if (format_version >= current) { | |
1437 | dout(20) << __func__ << " format " << format_version << " is current" << dendl; | |
1438 | return; | |
1439 | } | |
1440 | ||
1441 | bool changed = false; | |
1442 | if (format_version == 0) { | |
1443 | dout(1) << __func__ << " upgrading from format 0 to 1" << dendl; | |
1444 | map<EntityName, EntityAuth>::iterator p; | |
1445 | for (p = mon->key_server.secrets_begin(); | |
1446 | p != mon->key_server.secrets_end(); | |
1447 | ++p) { | |
1448 | // grab mon caps, if any | |
1449 | string mon_caps; | |
1450 | if (p->second.caps.count("mon") == 0) | |
1451 | continue; | |
1452 | try { | |
1453 | bufferlist::iterator it = p->second.caps["mon"].begin(); | |
1454 | ::decode(mon_caps, it); | |
1455 | } | |
1456 | catch (buffer::error) { | |
1457 | dout(10) << __func__ << " unable to parse mon cap for " | |
1458 | << p->first << dendl; | |
1459 | continue; | |
1460 | } | |
1461 | ||
1462 | string n = p->first.to_str(); | |
1463 | string new_caps; | |
1464 | ||
1465 | // set daemon profiles | |
1466 | if ((p->first.is_osd() || p->first.is_mds()) && | |
1467 | mon_caps == "allow rwx") { | |
1468 | new_caps = string("allow profile ") + string(p->first.get_type_name()); | |
1469 | } | |
1470 | ||
1471 | // update bootstrap keys | |
1472 | if (n == "client.bootstrap-osd") { | |
1473 | new_caps = "allow profile bootstrap-osd"; | |
1474 | } | |
1475 | if (n == "client.bootstrap-mds") { | |
1476 | new_caps = "allow profile bootstrap-mds"; | |
1477 | } | |
1478 | ||
1479 | if (new_caps.length() > 0) { | |
1480 | dout(5) << __func__ << " updating " << p->first << " mon cap from " | |
1481 | << mon_caps << " to " << new_caps << dendl; | |
1482 | ||
1483 | bufferlist bl; | |
1484 | ::encode(new_caps, bl); | |
1485 | ||
1486 | KeyServerData::Incremental auth_inc; | |
1487 | auth_inc.name = p->first; | |
1488 | auth_inc.auth = p->second; | |
1489 | auth_inc.auth.caps["mon"] = bl; | |
1490 | auth_inc.op = KeyServerData::AUTH_INC_ADD; | |
1491 | push_cephx_inc(auth_inc); | |
1492 | changed = true; | |
1493 | } | |
1494 | } | |
1495 | } | |
1496 | ||
1497 | if (format_version == 1) { | |
1498 | dout(1) << __func__ << " upgrading from format 1 to 2" << dendl; | |
1499 | map<EntityName, EntityAuth>::iterator p; | |
1500 | for (p = mon->key_server.secrets_begin(); | |
1501 | p != mon->key_server.secrets_end(); | |
1502 | ++p) { | |
1503 | string n = p->first.to_str(); | |
1504 | ||
1505 | string newcap; | |
1506 | if (n == "client.admin") { | |
1507 | // admin gets it all | |
1508 | newcap = "allow *"; | |
1509 | } else if (n.find("osd.") == 0 || | |
1510 | n.find("mds.") == 0 || | |
1511 | n.find("mon.") == 0) { | |
1512 | // daemons follow their profile | |
1513 | string type = n.substr(0, 3); | |
1514 | newcap = "allow profile " + type; | |
1515 | } else if (p->second.caps.count("mon")) { | |
1516 | // if there are any mon caps, give them 'r' mgr caps | |
1517 | newcap = "allow r"; | |
1518 | } | |
1519 | ||
1520 | if (newcap.length() > 0) { | |
1521 | dout(5) << " giving " << n << " mgr '" << newcap << "'" << dendl; | |
1522 | bufferlist bl; | |
1523 | ::encode(newcap, bl); | |
1524 | ||
1525 | KeyServerData::Incremental auth_inc; | |
1526 | auth_inc.name = p->first; | |
1527 | auth_inc.auth = p->second; | |
1528 | auth_inc.auth.caps["mgr"] = bl; | |
1529 | auth_inc.op = KeyServerData::AUTH_INC_ADD; | |
1530 | push_cephx_inc(auth_inc); | |
1531 | } | |
1532 | ||
1533 | if (n.find("mgr.") == 0 && | |
1534 | p->second.caps.count("mon")) { | |
1535 | // the kraken ceph-mgr@.service set the mon cap to 'allow *'. | |
1536 | auto blp = p->second.caps["mon"].begin(); | |
1537 | string oldcaps; | |
1538 | ::decode(oldcaps, blp); | |
1539 | if (oldcaps == "allow *") { | |
1540 | dout(5) << " fixing " << n << " mon cap to 'allow profile mgr'" | |
1541 | << dendl; | |
1542 | bufferlist bl; | |
1543 | ::encode("allow profile mgr", bl); | |
1544 | KeyServerData::Incremental auth_inc; | |
1545 | auth_inc.name = p->first; | |
1546 | auth_inc.auth = p->second; | |
1547 | auth_inc.auth.caps["mon"] = bl; | |
1548 | auth_inc.op = KeyServerData::AUTH_INC_ADD; | |
1549 | push_cephx_inc(auth_inc); | |
1550 | } | |
1551 | } | |
1552 | } | |
1553 | ||
1554 | // add bootstrap key if it does not already exist | |
1555 | // (might have already been get-or-create'd by | |
1556 | // ceph-create-keys) | |
1557 | EntityName bootstrap_mgr_name; | |
1558 | int r = bootstrap_mgr_name.from_str("client.bootstrap-mgr"); | |
1559 | assert(r); | |
1560 | if (!mon->key_server.contains(bootstrap_mgr_name)) { | |
1561 | KeyServerData::Incremental auth_inc; | |
1562 | auth_inc.name = bootstrap_mgr_name; | |
1563 | ::encode("allow profile bootstrap-mgr", auth_inc.auth.caps["mon"]); | |
1564 | auth_inc.op = KeyServerData::AUTH_INC_ADD; | |
1565 | // generate key | |
1566 | auth_inc.auth.key.create(g_ceph_context, CEPH_CRYPTO_AES); | |
1567 | push_cephx_inc(auth_inc); | |
1568 | } | |
1569 | changed = true; | |
1570 | } | |
1571 | ||
1572 | if (changed) { | |
1573 | // note new format | |
1574 | dout(10) << __func__ << " proposing update from format " << format_version | |
1575 | << " -> " << current << dendl; | |
1576 | format_version = current; | |
1577 | propose_pending(); | |
1578 | } | |
1579 | } | |
1580 | ||
1581 | void AuthMonitor::dump_info(Formatter *f) | |
1582 | { | |
1583 | /*** WARNING: do not include any privileged information here! ***/ | |
1584 | f->open_object_section("auth"); | |
1585 | f->dump_unsigned("first_committed", get_first_committed()); | |
1586 | f->dump_unsigned("last_committed", get_last_committed()); | |
1587 | f->dump_unsigned("num_secrets", mon->key_server.get_num_secrets()); | |
1588 | f->close_section(); | |
1589 | } |