Commit | Line | Data |
---|---|---|
3d14c5d2 YS |
1 | |
2 | #include <linux/ceph/ceph_debug.h> | |
3 | #include <linux/backing-dev.h> | |
4 | #include <linux/ctype.h> | |
5 | #include <linux/fs.h> | |
6 | #include <linux/inet.h> | |
7 | #include <linux/in6.h> | |
e2c3d29b | 8 | #include <linux/key.h> |
4b2a58ab | 9 | #include <keys/ceph-type.h> |
3d14c5d2 YS |
10 | #include <linux/module.h> |
11 | #include <linux/mount.h> | |
12 | #include <linux/parser.h> | |
13 | #include <linux/sched.h> | |
14 | #include <linux/seq_file.h> | |
15 | #include <linux/slab.h> | |
16 | #include <linux/statfs.h> | |
17 | #include <linux/string.h> | |
18 | ||
19 | ||
20 | #include <linux/ceph/libceph.h> | |
21 | #include <linux/ceph/debugfs.h> | |
22 | #include <linux/ceph/decode.h> | |
23 | #include <linux/ceph/mon_client.h> | |
24 | #include <linux/ceph/auth.h> | |
8323c3aa | 25 | #include "crypto.h" |
3d14c5d2 YS |
26 | |
27 | ||
28 | ||
29 | /* | |
30 | * find filename portion of a path (/foo/bar/baz -> baz) | |
31 | */ | |
32 | const char *ceph_file_part(const char *s, int len) | |
33 | { | |
34 | const char *e = s + len; | |
35 | ||
36 | while (e != s && *(e-1) != '/') | |
37 | e--; | |
38 | return e; | |
39 | } | |
40 | EXPORT_SYMBOL(ceph_file_part); | |
41 | ||
42 | const char *ceph_msg_type_name(int type) | |
43 | { | |
44 | switch (type) { | |
45 | case CEPH_MSG_SHUTDOWN: return "shutdown"; | |
46 | case CEPH_MSG_PING: return "ping"; | |
47 | case CEPH_MSG_AUTH: return "auth"; | |
48 | case CEPH_MSG_AUTH_REPLY: return "auth_reply"; | |
49 | case CEPH_MSG_MON_MAP: return "mon_map"; | |
50 | case CEPH_MSG_MON_GET_MAP: return "mon_get_map"; | |
51 | case CEPH_MSG_MON_SUBSCRIBE: return "mon_subscribe"; | |
52 | case CEPH_MSG_MON_SUBSCRIBE_ACK: return "mon_subscribe_ack"; | |
53 | case CEPH_MSG_STATFS: return "statfs"; | |
54 | case CEPH_MSG_STATFS_REPLY: return "statfs_reply"; | |
55 | case CEPH_MSG_MDS_MAP: return "mds_map"; | |
56 | case CEPH_MSG_CLIENT_SESSION: return "client_session"; | |
57 | case CEPH_MSG_CLIENT_RECONNECT: return "client_reconnect"; | |
58 | case CEPH_MSG_CLIENT_REQUEST: return "client_request"; | |
59 | case CEPH_MSG_CLIENT_REQUEST_FORWARD: return "client_request_forward"; | |
60 | case CEPH_MSG_CLIENT_REPLY: return "client_reply"; | |
61 | case CEPH_MSG_CLIENT_CAPS: return "client_caps"; | |
62 | case CEPH_MSG_CLIENT_CAPRELEASE: return "client_cap_release"; | |
63 | case CEPH_MSG_CLIENT_SNAP: return "client_snap"; | |
64 | case CEPH_MSG_CLIENT_LEASE: return "client_lease"; | |
65 | case CEPH_MSG_OSD_MAP: return "osd_map"; | |
66 | case CEPH_MSG_OSD_OP: return "osd_op"; | |
67 | case CEPH_MSG_OSD_OPREPLY: return "osd_opreply"; | |
a40c4f10 | 68 | case CEPH_MSG_WATCH_NOTIFY: return "watch_notify"; |
3d14c5d2 YS |
69 | default: return "unknown"; |
70 | } | |
71 | } | |
72 | EXPORT_SYMBOL(ceph_msg_type_name); | |
73 | ||
74 | /* | |
75 | * Initially learn our fsid, or verify an fsid matches. | |
76 | */ | |
77 | int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid) | |
78 | { | |
79 | if (client->have_fsid) { | |
80 | if (ceph_fsid_compare(&client->fsid, fsid)) { | |
81 | pr_err("bad fsid, had %pU got %pU", | |
82 | &client->fsid, fsid); | |
83 | return -1; | |
84 | } | |
85 | } else { | |
86 | pr_info("client%lld fsid %pU\n", ceph_client_id(client), fsid); | |
87 | memcpy(&client->fsid, fsid, sizeof(*fsid)); | |
88 | ceph_debugfs_client_init(client); | |
89 | client->have_fsid = true; | |
90 | } | |
91 | return 0; | |
92 | } | |
93 | EXPORT_SYMBOL(ceph_check_fsid); | |
94 | ||
95 | static int strcmp_null(const char *s1, const char *s2) | |
96 | { | |
97 | if (!s1 && !s2) | |
98 | return 0; | |
99 | if (s1 && !s2) | |
100 | return -1; | |
101 | if (!s1 && s2) | |
102 | return 1; | |
103 | return strcmp(s1, s2); | |
104 | } | |
105 | ||
106 | int ceph_compare_options(struct ceph_options *new_opt, | |
107 | struct ceph_client *client) | |
108 | { | |
109 | struct ceph_options *opt1 = new_opt; | |
110 | struct ceph_options *opt2 = client->options; | |
111 | int ofs = offsetof(struct ceph_options, mon_addr); | |
112 | int i; | |
113 | int ret; | |
114 | ||
115 | ret = memcmp(opt1, opt2, ofs); | |
116 | if (ret) | |
117 | return ret; | |
118 | ||
119 | ret = strcmp_null(opt1->name, opt2->name); | |
120 | if (ret) | |
121 | return ret; | |
122 | ||
8323c3aa TV |
123 | if (opt1->key && !opt2->key) |
124 | return -1; | |
125 | if (!opt1->key && opt2->key) | |
126 | return 1; | |
127 | if (opt1->key && opt2->key) { | |
128 | if (opt1->key->type != opt2->key->type) | |
129 | return -1; | |
130 | if (opt1->key->created.tv_sec != opt2->key->created.tv_sec) | |
131 | return -1; | |
132 | if (opt1->key->created.tv_nsec != opt2->key->created.tv_nsec) | |
133 | return -1; | |
134 | if (opt1->key->len != opt2->key->len) | |
135 | return -1; | |
136 | if (opt1->key->key && !opt2->key->key) | |
137 | return -1; | |
138 | if (!opt1->key->key && opt2->key->key) | |
139 | return 1; | |
140 | if (opt1->key->key && opt2->key->key) { | |
141 | ret = memcmp(opt1->key->key, opt2->key->key, opt1->key->len); | |
142 | if (ret) | |
143 | return ret; | |
144 | } | |
145 | } | |
3d14c5d2 YS |
146 | |
147 | /* any matching mon ip implies a match */ | |
148 | for (i = 0; i < opt1->num_mon; i++) { | |
149 | if (ceph_monmap_contains(client->monc.monmap, | |
150 | &opt1->mon_addr[i])) | |
151 | return 0; | |
152 | } | |
153 | return -1; | |
154 | } | |
155 | EXPORT_SYMBOL(ceph_compare_options); | |
156 | ||
157 | ||
158 | static int parse_fsid(const char *str, struct ceph_fsid *fsid) | |
159 | { | |
160 | int i = 0; | |
161 | char tmp[3]; | |
162 | int err = -EINVAL; | |
163 | int d; | |
164 | ||
165 | dout("parse_fsid '%s'\n", str); | |
166 | tmp[2] = 0; | |
167 | while (*str && i < 16) { | |
168 | if (ispunct(*str)) { | |
169 | str++; | |
170 | continue; | |
171 | } | |
172 | if (!isxdigit(str[0]) || !isxdigit(str[1])) | |
173 | break; | |
174 | tmp[0] = str[0]; | |
175 | tmp[1] = str[1]; | |
176 | if (sscanf(tmp, "%x", &d) < 1) | |
177 | break; | |
178 | fsid->fsid[i] = d & 0xff; | |
179 | i++; | |
180 | str += 2; | |
181 | } | |
182 | ||
183 | if (i == 16) | |
184 | err = 0; | |
185 | dout("parse_fsid ret %d got fsid %pU", err, fsid); | |
186 | return err; | |
187 | } | |
188 | ||
189 | /* | |
190 | * ceph options | |
191 | */ | |
192 | enum { | |
193 | Opt_osdtimeout, | |
194 | Opt_osdkeepalivetimeout, | |
195 | Opt_mount_timeout, | |
196 | Opt_osd_idle_ttl, | |
197 | Opt_last_int, | |
198 | /* int args above */ | |
199 | Opt_fsid, | |
200 | Opt_name, | |
201 | Opt_secret, | |
e2c3d29b | 202 | Opt_key, |
3d14c5d2 YS |
203 | Opt_ip, |
204 | Opt_last_string, | |
205 | /* string args above */ | |
206 | Opt_noshare, | |
207 | Opt_nocrc, | |
208 | }; | |
209 | ||
210 | static match_table_t opt_tokens = { | |
211 | {Opt_osdtimeout, "osdtimeout=%d"}, | |
212 | {Opt_osdkeepalivetimeout, "osdkeepalive=%d"}, | |
213 | {Opt_mount_timeout, "mount_timeout=%d"}, | |
214 | {Opt_osd_idle_ttl, "osd_idle_ttl=%d"}, | |
215 | /* int args above */ | |
216 | {Opt_fsid, "fsid=%s"}, | |
217 | {Opt_name, "name=%s"}, | |
218 | {Opt_secret, "secret=%s"}, | |
e2c3d29b | 219 | {Opt_key, "key=%s"}, |
3d14c5d2 YS |
220 | {Opt_ip, "ip=%s"}, |
221 | /* string args above */ | |
222 | {Opt_noshare, "noshare"}, | |
223 | {Opt_nocrc, "nocrc"}, | |
224 | {-1, NULL} | |
225 | }; | |
226 | ||
227 | void ceph_destroy_options(struct ceph_options *opt) | |
228 | { | |
229 | dout("destroy_options %p\n", opt); | |
230 | kfree(opt->name); | |
8323c3aa TV |
231 | if (opt->key) { |
232 | ceph_crypto_key_destroy(opt->key); | |
233 | kfree(opt->key); | |
234 | } | |
1cad7893 | 235 | kfree(opt->mon_addr); |
3d14c5d2 YS |
236 | kfree(opt); |
237 | } | |
238 | EXPORT_SYMBOL(ceph_destroy_options); | |
239 | ||
e2c3d29b TV |
240 | /* get secret from key store */ |
241 | static int get_secret(struct ceph_crypto_key *dst, const char *name) { | |
242 | struct key *ukey; | |
243 | int key_err; | |
244 | int err = 0; | |
4b2a58ab | 245 | struct ceph_crypto_key *ckey; |
e2c3d29b | 246 | |
4b2a58ab | 247 | ukey = request_key(&key_type_ceph, name, NULL); |
e2c3d29b TV |
248 | if (!ukey || IS_ERR(ukey)) { |
249 | /* request_key errors don't map nicely to mount(2) | |
250 | errors; don't even try, but still printk */ | |
251 | key_err = PTR_ERR(ukey); | |
252 | switch (key_err) { | |
253 | case -ENOKEY: | |
254 | pr_warning("ceph: Mount failed due to key not found: %s\n", name); | |
255 | break; | |
256 | case -EKEYEXPIRED: | |
257 | pr_warning("ceph: Mount failed due to expired key: %s\n", name); | |
258 | break; | |
259 | case -EKEYREVOKED: | |
260 | pr_warning("ceph: Mount failed due to revoked key: %s\n", name); | |
261 | break; | |
262 | default: | |
263 | pr_warning("ceph: Mount failed due to unknown key error" | |
264 | " %d: %s\n", key_err, name); | |
265 | } | |
266 | err = -EPERM; | |
267 | goto out; | |
268 | } | |
269 | ||
4b2a58ab TV |
270 | ckey = ukey->payload.data; |
271 | err = ceph_crypto_key_clone(dst, ckey); | |
e2c3d29b TV |
272 | if (err) |
273 | goto out_key; | |
274 | /* pass through, err is 0 */ | |
275 | ||
276 | out_key: | |
277 | key_put(ukey); | |
278 | out: | |
279 | return err; | |
280 | } | |
281 | ||
3d14c5d2 YS |
282 | int ceph_parse_options(struct ceph_options **popt, char *options, |
283 | const char *dev_name, const char *dev_name_end, | |
284 | int (*parse_extra_token)(char *c, void *private), | |
285 | void *private) | |
286 | { | |
287 | struct ceph_options *opt; | |
288 | const char *c; | |
289 | int err = -ENOMEM; | |
290 | substring_t argstr[MAX_OPT_ARGS]; | |
291 | ||
292 | opt = kzalloc(sizeof(*opt), GFP_KERNEL); | |
293 | if (!opt) | |
294 | return err; | |
295 | opt->mon_addr = kcalloc(CEPH_MAX_MON, sizeof(*opt->mon_addr), | |
296 | GFP_KERNEL); | |
297 | if (!opt->mon_addr) | |
298 | goto out; | |
299 | ||
300 | dout("parse_options %p options '%s' dev_name '%s'\n", opt, options, | |
301 | dev_name); | |
302 | ||
303 | /* start with defaults */ | |
304 | opt->flags = CEPH_OPT_DEFAULT; | |
305 | opt->osd_timeout = CEPH_OSD_TIMEOUT_DEFAULT; | |
306 | opt->osd_keepalive_timeout = CEPH_OSD_KEEPALIVE_DEFAULT; | |
307 | opt->mount_timeout = CEPH_MOUNT_TIMEOUT_DEFAULT; /* seconds */ | |
308 | opt->osd_idle_ttl = CEPH_OSD_IDLE_TTL_DEFAULT; /* seconds */ | |
309 | ||
310 | /* get mon ip(s) */ | |
311 | /* ip1[:port1][,ip2[:port2]...] */ | |
312 | err = ceph_parse_ips(dev_name, dev_name_end, opt->mon_addr, | |
313 | CEPH_MAX_MON, &opt->num_mon); | |
314 | if (err < 0) | |
315 | goto out; | |
316 | ||
317 | /* parse mount options */ | |
318 | while ((c = strsep(&options, ",")) != NULL) { | |
319 | int token, intval, ret; | |
320 | if (!*c) | |
321 | continue; | |
322 | err = -EINVAL; | |
323 | token = match_token((char *)c, opt_tokens, argstr); | |
010e3b48 | 324 | if (token < 0 && parse_extra_token) { |
3d14c5d2 YS |
325 | /* extra? */ |
326 | err = parse_extra_token((char *)c, private); | |
327 | if (err < 0) { | |
328 | pr_err("bad option at '%s'\n", c); | |
329 | goto out; | |
330 | } | |
331 | continue; | |
332 | } | |
333 | if (token < Opt_last_int) { | |
334 | ret = match_int(&argstr[0], &intval); | |
335 | if (ret < 0) { | |
336 | pr_err("bad mount option arg (not int) " | |
337 | "at '%s'\n", c); | |
338 | continue; | |
339 | } | |
340 | dout("got int token %d val %d\n", token, intval); | |
341 | } else if (token > Opt_last_int && token < Opt_last_string) { | |
342 | dout("got string token %d val %s\n", token, | |
343 | argstr[0].from); | |
344 | } else { | |
345 | dout("got token %d\n", token); | |
346 | } | |
347 | switch (token) { | |
348 | case Opt_ip: | |
349 | err = ceph_parse_ips(argstr[0].from, | |
350 | argstr[0].to, | |
351 | &opt->my_addr, | |
352 | 1, NULL); | |
353 | if (err < 0) | |
354 | goto out; | |
355 | opt->flags |= CEPH_OPT_MYIP; | |
356 | break; | |
357 | ||
358 | case Opt_fsid: | |
359 | err = parse_fsid(argstr[0].from, &opt->fsid); | |
360 | if (err == 0) | |
361 | opt->flags |= CEPH_OPT_FSID; | |
362 | break; | |
363 | case Opt_name: | |
364 | opt->name = kstrndup(argstr[0].from, | |
365 | argstr[0].to-argstr[0].from, | |
366 | GFP_KERNEL); | |
367 | break; | |
368 | case Opt_secret: | |
8323c3aa TV |
369 | opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL); |
370 | if (!opt->key) { | |
371 | err = -ENOMEM; | |
372 | goto out; | |
373 | } | |
374 | err = ceph_crypto_key_unarmor(opt->key, argstr[0].from); | |
375 | if (err < 0) | |
376 | goto out; | |
3d14c5d2 | 377 | break; |
e2c3d29b TV |
378 | case Opt_key: |
379 | opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL); | |
380 | if (!opt->key) { | |
381 | err = -ENOMEM; | |
382 | goto out; | |
383 | } | |
384 | err = get_secret(opt->key, argstr[0].from); | |
385 | if (err < 0) | |
386 | goto out; | |
387 | break; | |
3d14c5d2 YS |
388 | |
389 | /* misc */ | |
390 | case Opt_osdtimeout: | |
391 | opt->osd_timeout = intval; | |
392 | break; | |
393 | case Opt_osdkeepalivetimeout: | |
394 | opt->osd_keepalive_timeout = intval; | |
395 | break; | |
396 | case Opt_osd_idle_ttl: | |
397 | opt->osd_idle_ttl = intval; | |
398 | break; | |
399 | case Opt_mount_timeout: | |
400 | opt->mount_timeout = intval; | |
401 | break; | |
402 | ||
403 | case Opt_noshare: | |
404 | opt->flags |= CEPH_OPT_NOSHARE; | |
405 | break; | |
406 | ||
407 | case Opt_nocrc: | |
408 | opt->flags |= CEPH_OPT_NOCRC; | |
409 | break; | |
410 | ||
411 | default: | |
412 | BUG_ON(token); | |
413 | } | |
414 | } | |
415 | ||
416 | /* success */ | |
417 | *popt = opt; | |
418 | return 0; | |
419 | ||
420 | out: | |
421 | ceph_destroy_options(opt); | |
422 | return err; | |
423 | } | |
424 | EXPORT_SYMBOL(ceph_parse_options); | |
425 | ||
426 | u64 ceph_client_id(struct ceph_client *client) | |
427 | { | |
428 | return client->monc.auth->global_id; | |
429 | } | |
430 | EXPORT_SYMBOL(ceph_client_id); | |
431 | ||
432 | /* | |
433 | * create a fresh client instance | |
434 | */ | |
6ab00d46 SW |
435 | struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private, |
436 | unsigned supported_features, | |
437 | unsigned required_features) | |
3d14c5d2 YS |
438 | { |
439 | struct ceph_client *client; | |
6ab00d46 | 440 | struct ceph_entity_addr *myaddr = NULL; |
3d14c5d2 YS |
441 | int err = -ENOMEM; |
442 | ||
443 | client = kzalloc(sizeof(*client), GFP_KERNEL); | |
444 | if (client == NULL) | |
445 | return ERR_PTR(-ENOMEM); | |
446 | ||
447 | client->private = private; | |
448 | client->options = opt; | |
449 | ||
450 | mutex_init(&client->mount_mutex); | |
451 | init_waitqueue_head(&client->auth_wq); | |
452 | client->auth_err = 0; | |
453 | ||
454 | client->extra_mon_dispatch = NULL; | |
6ab00d46 SW |
455 | client->supported_features = CEPH_FEATURE_SUPPORTED_DEFAULT | |
456 | supported_features; | |
457 | client->required_features = CEPH_FEATURE_REQUIRED_DEFAULT | | |
458 | required_features; | |
459 | ||
460 | /* msgr */ | |
461 | if (ceph_test_opt(client, MYIP)) | |
462 | myaddr = &client->options->my_addr; | |
463 | client->msgr = ceph_messenger_create(myaddr, | |
464 | client->supported_features, | |
465 | client->required_features); | |
466 | if (IS_ERR(client->msgr)) { | |
467 | err = PTR_ERR(client->msgr); | |
468 | goto fail; | |
469 | } | |
470 | client->msgr->nocrc = ceph_test_opt(client, NOCRC); | |
3d14c5d2 YS |
471 | |
472 | /* subsystems */ | |
473 | err = ceph_monc_init(&client->monc, client); | |
474 | if (err < 0) | |
6ab00d46 | 475 | goto fail_msgr; |
3d14c5d2 YS |
476 | err = ceph_osdc_init(&client->osdc, client); |
477 | if (err < 0) | |
478 | goto fail_monc; | |
479 | ||
480 | return client; | |
481 | ||
482 | fail_monc: | |
483 | ceph_monc_stop(&client->monc); | |
6ab00d46 SW |
484 | fail_msgr: |
485 | ceph_messenger_destroy(client->msgr); | |
3d14c5d2 YS |
486 | fail: |
487 | kfree(client); | |
488 | return ERR_PTR(err); | |
489 | } | |
490 | EXPORT_SYMBOL(ceph_create_client); | |
491 | ||
492 | void ceph_destroy_client(struct ceph_client *client) | |
493 | { | |
494 | dout("destroy_client %p\n", client); | |
495 | ||
496 | /* unmount */ | |
497 | ceph_osdc_stop(&client->osdc); | |
498 | ||
499 | /* | |
ef550f6f SW |
500 | * make sure osd connections close out before destroying the |
501 | * auth module, which is needed to free those connections' | |
3d14c5d2 YS |
502 | * ceph_authorizers. |
503 | */ | |
504 | ceph_msgr_flush(); | |
505 | ||
506 | ceph_monc_stop(&client->monc); | |
507 | ||
508 | ceph_debugfs_client_cleanup(client); | |
509 | ||
6ab00d46 | 510 | ceph_messenger_destroy(client->msgr); |
3d14c5d2 YS |
511 | |
512 | ceph_destroy_options(client->options); | |
513 | ||
514 | kfree(client); | |
515 | dout("destroy_client %p done\n", client); | |
516 | } | |
517 | EXPORT_SYMBOL(ceph_destroy_client); | |
518 | ||
519 | /* | |
520 | * true if we have the mon map (and have thus joined the cluster) | |
521 | */ | |
522 | static int have_mon_and_osd_map(struct ceph_client *client) | |
523 | { | |
524 | return client->monc.monmap && client->monc.monmap->epoch && | |
525 | client->osdc.osdmap && client->osdc.osdmap->epoch; | |
526 | } | |
527 | ||
528 | /* | |
529 | * mount: join the ceph cluster, and open root directory. | |
530 | */ | |
531 | int __ceph_open_session(struct ceph_client *client, unsigned long started) | |
532 | { | |
3d14c5d2 YS |
533 | int err; |
534 | unsigned long timeout = client->options->mount_timeout * HZ; | |
535 | ||
3d14c5d2 YS |
536 | /* open session, and wait for mon and osd maps */ |
537 | err = ceph_monc_open_session(&client->monc); | |
538 | if (err < 0) | |
539 | return err; | |
540 | ||
541 | while (!have_mon_and_osd_map(client)) { | |
542 | err = -EIO; | |
543 | if (timeout && time_after_eq(jiffies, started + timeout)) | |
544 | return err; | |
545 | ||
546 | /* wait */ | |
547 | dout("mount waiting for mon_map\n"); | |
548 | err = wait_event_interruptible_timeout(client->auth_wq, | |
549 | have_mon_and_osd_map(client) || (client->auth_err < 0), | |
550 | timeout); | |
551 | if (err == -EINTR || err == -ERESTARTSYS) | |
552 | return err; | |
553 | if (client->auth_err < 0) | |
554 | return client->auth_err; | |
555 | } | |
556 | ||
557 | return 0; | |
558 | } | |
559 | EXPORT_SYMBOL(__ceph_open_session); | |
560 | ||
561 | ||
562 | int ceph_open_session(struct ceph_client *client) | |
563 | { | |
564 | int ret; | |
565 | unsigned long started = jiffies; /* note the start time */ | |
566 | ||
567 | dout("open_session start\n"); | |
568 | mutex_lock(&client->mount_mutex); | |
569 | ||
570 | ret = __ceph_open_session(client, started); | |
571 | ||
572 | mutex_unlock(&client->mount_mutex); | |
573 | return ret; | |
574 | } | |
575 | EXPORT_SYMBOL(ceph_open_session); | |
576 | ||
577 | ||
578 | static int __init init_ceph_lib(void) | |
579 | { | |
580 | int ret = 0; | |
581 | ||
582 | ret = ceph_debugfs_init(); | |
583 | if (ret < 0) | |
584 | goto out; | |
585 | ||
4b2a58ab | 586 | ret = ceph_crypto_init(); |
3d14c5d2 YS |
587 | if (ret < 0) |
588 | goto out_debugfs; | |
589 | ||
4b2a58ab TV |
590 | ret = ceph_msgr_init(); |
591 | if (ret < 0) | |
592 | goto out_crypto; | |
593 | ||
3d14c5d2 YS |
594 | pr_info("loaded (mon/osd proto %d/%d, osdmap %d/%d %d/%d)\n", |
595 | CEPH_MONC_PROTOCOL, CEPH_OSDC_PROTOCOL, | |
596 | CEPH_OSDMAP_VERSION, CEPH_OSDMAP_VERSION_EXT, | |
597 | CEPH_OSDMAP_INC_VERSION, CEPH_OSDMAP_INC_VERSION_EXT); | |
598 | ||
599 | return 0; | |
600 | ||
4b2a58ab TV |
601 | out_crypto: |
602 | ceph_crypto_shutdown(); | |
3d14c5d2 YS |
603 | out_debugfs: |
604 | ceph_debugfs_cleanup(); | |
605 | out: | |
606 | return ret; | |
607 | } | |
608 | ||
609 | static void __exit exit_ceph_lib(void) | |
610 | { | |
611 | dout("exit_ceph_lib\n"); | |
612 | ceph_msgr_exit(); | |
4b2a58ab | 613 | ceph_crypto_shutdown(); |
3d14c5d2 YS |
614 | ceph_debugfs_cleanup(); |
615 | } | |
616 | ||
617 | module_init(init_ceph_lib); | |
618 | module_exit(exit_ceph_lib); | |
619 | ||
620 | MODULE_AUTHOR("Sage Weil <sage@newdream.net>"); | |
621 | MODULE_AUTHOR("Yehuda Sadeh <yehuda@hq.newdream.net>"); | |
622 | MODULE_AUTHOR("Patience Warnick <patience@newdream.net>"); | |
623 | MODULE_DESCRIPTION("Ceph filesystem for Linux"); | |
624 | MODULE_LICENSE("GPL"); |