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Commit | Line | Data |
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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)); | |
3d14c5d2 YS |
88 | } |
89 | return 0; | |
90 | } | |
91 | EXPORT_SYMBOL(ceph_check_fsid); | |
92 | ||
93 | static int strcmp_null(const char *s1, const char *s2) | |
94 | { | |
95 | if (!s1 && !s2) | |
96 | return 0; | |
97 | if (s1 && !s2) | |
98 | return -1; | |
99 | if (!s1 && s2) | |
100 | return 1; | |
101 | return strcmp(s1, s2); | |
102 | } | |
103 | ||
104 | int ceph_compare_options(struct ceph_options *new_opt, | |
105 | struct ceph_client *client) | |
106 | { | |
107 | struct ceph_options *opt1 = new_opt; | |
108 | struct ceph_options *opt2 = client->options; | |
109 | int ofs = offsetof(struct ceph_options, mon_addr); | |
110 | int i; | |
111 | int ret; | |
112 | ||
113 | ret = memcmp(opt1, opt2, ofs); | |
114 | if (ret) | |
115 | return ret; | |
116 | ||
117 | ret = strcmp_null(opt1->name, opt2->name); | |
118 | if (ret) | |
119 | return ret; | |
120 | ||
8323c3aa TV |
121 | if (opt1->key && !opt2->key) |
122 | return -1; | |
123 | if (!opt1->key && opt2->key) | |
124 | return 1; | |
125 | if (opt1->key && opt2->key) { | |
126 | if (opt1->key->type != opt2->key->type) | |
127 | return -1; | |
128 | if (opt1->key->created.tv_sec != opt2->key->created.tv_sec) | |
129 | return -1; | |
130 | if (opt1->key->created.tv_nsec != opt2->key->created.tv_nsec) | |
131 | return -1; | |
132 | if (opt1->key->len != opt2->key->len) | |
133 | return -1; | |
134 | if (opt1->key->key && !opt2->key->key) | |
135 | return -1; | |
136 | if (!opt1->key->key && opt2->key->key) | |
137 | return 1; | |
138 | if (opt1->key->key && opt2->key->key) { | |
139 | ret = memcmp(opt1->key->key, opt2->key->key, opt1->key->len); | |
140 | if (ret) | |
141 | return ret; | |
142 | } | |
143 | } | |
3d14c5d2 YS |
144 | |
145 | /* any matching mon ip implies a match */ | |
146 | for (i = 0; i < opt1->num_mon; i++) { | |
147 | if (ceph_monmap_contains(client->monc.monmap, | |
148 | &opt1->mon_addr[i])) | |
149 | return 0; | |
150 | } | |
151 | return -1; | |
152 | } | |
153 | EXPORT_SYMBOL(ceph_compare_options); | |
154 | ||
155 | ||
156 | static int parse_fsid(const char *str, struct ceph_fsid *fsid) | |
157 | { | |
158 | int i = 0; | |
159 | char tmp[3]; | |
160 | int err = -EINVAL; | |
161 | int d; | |
162 | ||
163 | dout("parse_fsid '%s'\n", str); | |
164 | tmp[2] = 0; | |
165 | while (*str && i < 16) { | |
166 | if (ispunct(*str)) { | |
167 | str++; | |
168 | continue; | |
169 | } | |
170 | if (!isxdigit(str[0]) || !isxdigit(str[1])) | |
171 | break; | |
172 | tmp[0] = str[0]; | |
173 | tmp[1] = str[1]; | |
174 | if (sscanf(tmp, "%x", &d) < 1) | |
175 | break; | |
176 | fsid->fsid[i] = d & 0xff; | |
177 | i++; | |
178 | str += 2; | |
179 | } | |
180 | ||
181 | if (i == 16) | |
182 | err = 0; | |
183 | dout("parse_fsid ret %d got fsid %pU", err, fsid); | |
184 | return err; | |
185 | } | |
186 | ||
187 | /* | |
188 | * ceph options | |
189 | */ | |
190 | enum { | |
191 | Opt_osdtimeout, | |
192 | Opt_osdkeepalivetimeout, | |
193 | Opt_mount_timeout, | |
194 | Opt_osd_idle_ttl, | |
195 | Opt_last_int, | |
196 | /* int args above */ | |
197 | Opt_fsid, | |
198 | Opt_name, | |
199 | Opt_secret, | |
e2c3d29b | 200 | Opt_key, |
3d14c5d2 YS |
201 | Opt_ip, |
202 | Opt_last_string, | |
203 | /* string args above */ | |
204 | Opt_noshare, | |
205 | Opt_nocrc, | |
206 | }; | |
207 | ||
208 | static match_table_t opt_tokens = { | |
209 | {Opt_osdtimeout, "osdtimeout=%d"}, | |
210 | {Opt_osdkeepalivetimeout, "osdkeepalive=%d"}, | |
211 | {Opt_mount_timeout, "mount_timeout=%d"}, | |
212 | {Opt_osd_idle_ttl, "osd_idle_ttl=%d"}, | |
213 | /* int args above */ | |
214 | {Opt_fsid, "fsid=%s"}, | |
215 | {Opt_name, "name=%s"}, | |
216 | {Opt_secret, "secret=%s"}, | |
e2c3d29b | 217 | {Opt_key, "key=%s"}, |
3d14c5d2 YS |
218 | {Opt_ip, "ip=%s"}, |
219 | /* string args above */ | |
220 | {Opt_noshare, "noshare"}, | |
221 | {Opt_nocrc, "nocrc"}, | |
222 | {-1, NULL} | |
223 | }; | |
224 | ||
225 | void ceph_destroy_options(struct ceph_options *opt) | |
226 | { | |
227 | dout("destroy_options %p\n", opt); | |
228 | kfree(opt->name); | |
8323c3aa TV |
229 | if (opt->key) { |
230 | ceph_crypto_key_destroy(opt->key); | |
231 | kfree(opt->key); | |
232 | } | |
1cad7893 | 233 | kfree(opt->mon_addr); |
3d14c5d2 YS |
234 | kfree(opt); |
235 | } | |
236 | EXPORT_SYMBOL(ceph_destroy_options); | |
237 | ||
e2c3d29b TV |
238 | /* get secret from key store */ |
239 | static int get_secret(struct ceph_crypto_key *dst, const char *name) { | |
240 | struct key *ukey; | |
241 | int key_err; | |
242 | int err = 0; | |
4b2a58ab | 243 | struct ceph_crypto_key *ckey; |
e2c3d29b | 244 | |
4b2a58ab | 245 | ukey = request_key(&key_type_ceph, name, NULL); |
e2c3d29b TV |
246 | if (!ukey || IS_ERR(ukey)) { |
247 | /* request_key errors don't map nicely to mount(2) | |
248 | errors; don't even try, but still printk */ | |
249 | key_err = PTR_ERR(ukey); | |
250 | switch (key_err) { | |
251 | case -ENOKEY: | |
252 | pr_warning("ceph: Mount failed due to key not found: %s\n", name); | |
253 | break; | |
254 | case -EKEYEXPIRED: | |
255 | pr_warning("ceph: Mount failed due to expired key: %s\n", name); | |
256 | break; | |
257 | case -EKEYREVOKED: | |
258 | pr_warning("ceph: Mount failed due to revoked key: %s\n", name); | |
259 | break; | |
260 | default: | |
261 | pr_warning("ceph: Mount failed due to unknown key error" | |
262 | " %d: %s\n", key_err, name); | |
263 | } | |
264 | err = -EPERM; | |
265 | goto out; | |
266 | } | |
267 | ||
4b2a58ab TV |
268 | ckey = ukey->payload.data; |
269 | err = ceph_crypto_key_clone(dst, ckey); | |
e2c3d29b TV |
270 | if (err) |
271 | goto out_key; | |
272 | /* pass through, err is 0 */ | |
273 | ||
274 | out_key: | |
275 | key_put(ukey); | |
276 | out: | |
277 | return err; | |
278 | } | |
279 | ||
ee57741c AE |
280 | struct ceph_options * |
281 | ceph_parse_options(char *options, const char *dev_name, | |
282 | const char *dev_name_end, | |
283 | int (*parse_extra_token)(char *c, void *private), | |
284 | void *private) | |
3d14c5d2 YS |
285 | { |
286 | struct ceph_options *opt; | |
287 | const char *c; | |
288 | int err = -ENOMEM; | |
289 | substring_t argstr[MAX_OPT_ARGS]; | |
290 | ||
291 | opt = kzalloc(sizeof(*opt), GFP_KERNEL); | |
292 | if (!opt) | |
ee57741c | 293 | return ERR_PTR(-ENOMEM); |
3d14c5d2 YS |
294 | opt->mon_addr = kcalloc(CEPH_MAX_MON, sizeof(*opt->mon_addr), |
295 | GFP_KERNEL); | |
296 | if (!opt->mon_addr) | |
297 | goto out; | |
298 | ||
299 | dout("parse_options %p options '%s' dev_name '%s'\n", opt, options, | |
300 | dev_name); | |
301 | ||
302 | /* start with defaults */ | |
303 | opt->flags = CEPH_OPT_DEFAULT; | |
304 | opt->osd_timeout = CEPH_OSD_TIMEOUT_DEFAULT; | |
305 | opt->osd_keepalive_timeout = CEPH_OSD_KEEPALIVE_DEFAULT; | |
306 | opt->mount_timeout = CEPH_MOUNT_TIMEOUT_DEFAULT; /* seconds */ | |
307 | opt->osd_idle_ttl = CEPH_OSD_IDLE_TTL_DEFAULT; /* seconds */ | |
308 | ||
309 | /* get mon ip(s) */ | |
310 | /* ip1[:port1][,ip2[:port2]...] */ | |
311 | err = ceph_parse_ips(dev_name, dev_name_end, opt->mon_addr, | |
312 | CEPH_MAX_MON, &opt->num_mon); | |
313 | if (err < 0) | |
314 | goto out; | |
315 | ||
316 | /* parse mount options */ | |
317 | while ((c = strsep(&options, ",")) != NULL) { | |
318 | int token, intval, ret; | |
319 | if (!*c) | |
320 | continue; | |
321 | err = -EINVAL; | |
322 | token = match_token((char *)c, opt_tokens, argstr); | |
010e3b48 | 323 | if (token < 0 && parse_extra_token) { |
3d14c5d2 YS |
324 | /* extra? */ |
325 | err = parse_extra_token((char *)c, private); | |
326 | if (err < 0) { | |
327 | pr_err("bad option at '%s'\n", c); | |
328 | goto out; | |
329 | } | |
330 | continue; | |
331 | } | |
332 | if (token < Opt_last_int) { | |
333 | ret = match_int(&argstr[0], &intval); | |
334 | if (ret < 0) { | |
335 | pr_err("bad mount option arg (not int) " | |
336 | "at '%s'\n", c); | |
337 | continue; | |
338 | } | |
339 | dout("got int token %d val %d\n", token, intval); | |
340 | } else if (token > Opt_last_int && token < Opt_last_string) { | |
341 | dout("got string token %d val %s\n", token, | |
342 | argstr[0].from); | |
343 | } else { | |
344 | dout("got token %d\n", token); | |
345 | } | |
346 | switch (token) { | |
347 | case Opt_ip: | |
348 | err = ceph_parse_ips(argstr[0].from, | |
349 | argstr[0].to, | |
350 | &opt->my_addr, | |
351 | 1, NULL); | |
352 | if (err < 0) | |
353 | goto out; | |
354 | opt->flags |= CEPH_OPT_MYIP; | |
355 | break; | |
356 | ||
357 | case Opt_fsid: | |
358 | err = parse_fsid(argstr[0].from, &opt->fsid); | |
359 | if (err == 0) | |
360 | opt->flags |= CEPH_OPT_FSID; | |
361 | break; | |
362 | case Opt_name: | |
363 | opt->name = kstrndup(argstr[0].from, | |
364 | argstr[0].to-argstr[0].from, | |
365 | GFP_KERNEL); | |
366 | break; | |
367 | case Opt_secret: | |
8323c3aa TV |
368 | opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL); |
369 | if (!opt->key) { | |
370 | err = -ENOMEM; | |
371 | goto out; | |
372 | } | |
373 | err = ceph_crypto_key_unarmor(opt->key, argstr[0].from); | |
374 | if (err < 0) | |
375 | goto out; | |
3d14c5d2 | 376 | break; |
e2c3d29b TV |
377 | case Opt_key: |
378 | opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL); | |
379 | if (!opt->key) { | |
380 | err = -ENOMEM; | |
381 | goto out; | |
382 | } | |
383 | err = get_secret(opt->key, argstr[0].from); | |
384 | if (err < 0) | |
385 | goto out; | |
386 | break; | |
3d14c5d2 YS |
387 | |
388 | /* misc */ | |
389 | case Opt_osdtimeout: | |
390 | opt->osd_timeout = intval; | |
391 | break; | |
392 | case Opt_osdkeepalivetimeout: | |
393 | opt->osd_keepalive_timeout = intval; | |
394 | break; | |
395 | case Opt_osd_idle_ttl: | |
396 | opt->osd_idle_ttl = intval; | |
397 | break; | |
398 | case Opt_mount_timeout: | |
399 | opt->mount_timeout = intval; | |
400 | break; | |
401 | ||
402 | case Opt_noshare: | |
403 | opt->flags |= CEPH_OPT_NOSHARE; | |
404 | break; | |
405 | ||
406 | case Opt_nocrc: | |
407 | opt->flags |= CEPH_OPT_NOCRC; | |
408 | break; | |
409 | ||
410 | default: | |
411 | BUG_ON(token); | |
412 | } | |
413 | } | |
414 | ||
415 | /* success */ | |
ee57741c | 416 | return opt; |
3d14c5d2 YS |
417 | |
418 | out: | |
419 | ceph_destroy_options(opt); | |
ee57741c | 420 | return ERR_PTR(err); |
3d14c5d2 YS |
421 | } |
422 | EXPORT_SYMBOL(ceph_parse_options); | |
423 | ||
424 | u64 ceph_client_id(struct ceph_client *client) | |
425 | { | |
426 | return client->monc.auth->global_id; | |
427 | } | |
428 | EXPORT_SYMBOL(ceph_client_id); | |
429 | ||
430 | /* | |
431 | * create a fresh client instance | |
432 | */ | |
6ab00d46 SW |
433 | struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private, |
434 | unsigned supported_features, | |
435 | unsigned required_features) | |
3d14c5d2 YS |
436 | { |
437 | struct ceph_client *client; | |
6ab00d46 | 438 | struct ceph_entity_addr *myaddr = NULL; |
3d14c5d2 YS |
439 | int err = -ENOMEM; |
440 | ||
441 | client = kzalloc(sizeof(*client), GFP_KERNEL); | |
442 | if (client == NULL) | |
443 | return ERR_PTR(-ENOMEM); | |
444 | ||
445 | client->private = private; | |
446 | client->options = opt; | |
447 | ||
448 | mutex_init(&client->mount_mutex); | |
449 | init_waitqueue_head(&client->auth_wq); | |
450 | client->auth_err = 0; | |
451 | ||
452 | client->extra_mon_dispatch = NULL; | |
6ab00d46 SW |
453 | client->supported_features = CEPH_FEATURE_SUPPORTED_DEFAULT | |
454 | supported_features; | |
455 | client->required_features = CEPH_FEATURE_REQUIRED_DEFAULT | | |
456 | required_features; | |
457 | ||
458 | /* msgr */ | |
459 | if (ceph_test_opt(client, MYIP)) | |
460 | myaddr = &client->options->my_addr; | |
461 | client->msgr = ceph_messenger_create(myaddr, | |
462 | client->supported_features, | |
463 | client->required_features); | |
464 | if (IS_ERR(client->msgr)) { | |
465 | err = PTR_ERR(client->msgr); | |
466 | goto fail; | |
467 | } | |
468 | client->msgr->nocrc = ceph_test_opt(client, NOCRC); | |
3d14c5d2 YS |
469 | |
470 | /* subsystems */ | |
471 | err = ceph_monc_init(&client->monc, client); | |
472 | if (err < 0) | |
6ab00d46 | 473 | goto fail_msgr; |
3d14c5d2 YS |
474 | err = ceph_osdc_init(&client->osdc, client); |
475 | if (err < 0) | |
476 | goto fail_monc; | |
477 | ||
478 | return client; | |
479 | ||
480 | fail_monc: | |
481 | ceph_monc_stop(&client->monc); | |
6ab00d46 SW |
482 | fail_msgr: |
483 | ceph_messenger_destroy(client->msgr); | |
3d14c5d2 YS |
484 | fail: |
485 | kfree(client); | |
486 | return ERR_PTR(err); | |
487 | } | |
488 | EXPORT_SYMBOL(ceph_create_client); | |
489 | ||
490 | void ceph_destroy_client(struct ceph_client *client) | |
491 | { | |
492 | dout("destroy_client %p\n", client); | |
493 | ||
494 | /* unmount */ | |
495 | ceph_osdc_stop(&client->osdc); | |
496 | ||
497 | /* | |
ef550f6f SW |
498 | * make sure osd connections close out before destroying the |
499 | * auth module, which is needed to free those connections' | |
3d14c5d2 YS |
500 | * ceph_authorizers. |
501 | */ | |
502 | ceph_msgr_flush(); | |
503 | ||
504 | ceph_monc_stop(&client->monc); | |
505 | ||
506 | ceph_debugfs_client_cleanup(client); | |
507 | ||
6ab00d46 | 508 | ceph_messenger_destroy(client->msgr); |
3d14c5d2 YS |
509 | |
510 | ceph_destroy_options(client->options); | |
511 | ||
512 | kfree(client); | |
513 | dout("destroy_client %p done\n", client); | |
514 | } | |
515 | EXPORT_SYMBOL(ceph_destroy_client); | |
516 | ||
517 | /* | |
518 | * true if we have the mon map (and have thus joined the cluster) | |
519 | */ | |
520 | static int have_mon_and_osd_map(struct ceph_client *client) | |
521 | { | |
522 | return client->monc.monmap && client->monc.monmap->epoch && | |
523 | client->osdc.osdmap && client->osdc.osdmap->epoch; | |
524 | } | |
525 | ||
526 | /* | |
527 | * mount: join the ceph cluster, and open root directory. | |
528 | */ | |
529 | int __ceph_open_session(struct ceph_client *client, unsigned long started) | |
530 | { | |
3d14c5d2 YS |
531 | int err; |
532 | unsigned long timeout = client->options->mount_timeout * HZ; | |
533 | ||
3d14c5d2 YS |
534 | /* open session, and wait for mon and osd maps */ |
535 | err = ceph_monc_open_session(&client->monc); | |
536 | if (err < 0) | |
537 | return err; | |
538 | ||
539 | while (!have_mon_and_osd_map(client)) { | |
540 | err = -EIO; | |
541 | if (timeout && time_after_eq(jiffies, started + timeout)) | |
542 | return err; | |
543 | ||
544 | /* wait */ | |
545 | dout("mount waiting for mon_map\n"); | |
546 | err = wait_event_interruptible_timeout(client->auth_wq, | |
547 | have_mon_and_osd_map(client) || (client->auth_err < 0), | |
548 | timeout); | |
549 | if (err == -EINTR || err == -ERESTARTSYS) | |
550 | return err; | |
551 | if (client->auth_err < 0) | |
552 | return client->auth_err; | |
553 | } | |
554 | ||
555 | return 0; | |
556 | } | |
557 | EXPORT_SYMBOL(__ceph_open_session); | |
558 | ||
559 | ||
560 | int ceph_open_session(struct ceph_client *client) | |
561 | { | |
562 | int ret; | |
563 | unsigned long started = jiffies; /* note the start time */ | |
564 | ||
565 | dout("open_session start\n"); | |
566 | mutex_lock(&client->mount_mutex); | |
567 | ||
568 | ret = __ceph_open_session(client, started); | |
569 | ||
570 | mutex_unlock(&client->mount_mutex); | |
571 | return ret; | |
572 | } | |
573 | EXPORT_SYMBOL(ceph_open_session); | |
574 | ||
575 | ||
576 | static int __init init_ceph_lib(void) | |
577 | { | |
578 | int ret = 0; | |
579 | ||
580 | ret = ceph_debugfs_init(); | |
581 | if (ret < 0) | |
582 | goto out; | |
583 | ||
4b2a58ab | 584 | ret = ceph_crypto_init(); |
3d14c5d2 YS |
585 | if (ret < 0) |
586 | goto out_debugfs; | |
587 | ||
4b2a58ab TV |
588 | ret = ceph_msgr_init(); |
589 | if (ret < 0) | |
590 | goto out_crypto; | |
591 | ||
3d14c5d2 YS |
592 | pr_info("loaded (mon/osd proto %d/%d, osdmap %d/%d %d/%d)\n", |
593 | CEPH_MONC_PROTOCOL, CEPH_OSDC_PROTOCOL, | |
594 | CEPH_OSDMAP_VERSION, CEPH_OSDMAP_VERSION_EXT, | |
595 | CEPH_OSDMAP_INC_VERSION, CEPH_OSDMAP_INC_VERSION_EXT); | |
596 | ||
597 | return 0; | |
598 | ||
4b2a58ab TV |
599 | out_crypto: |
600 | ceph_crypto_shutdown(); | |
3d14c5d2 YS |
601 | out_debugfs: |
602 | ceph_debugfs_cleanup(); | |
603 | out: | |
604 | return ret; | |
605 | } | |
606 | ||
607 | static void __exit exit_ceph_lib(void) | |
608 | { | |
609 | dout("exit_ceph_lib\n"); | |
610 | ceph_msgr_exit(); | |
4b2a58ab | 611 | ceph_crypto_shutdown(); |
3d14c5d2 YS |
612 | ceph_debugfs_cleanup(); |
613 | } | |
614 | ||
615 | module_init(init_ceph_lib); | |
616 | module_exit(exit_ceph_lib); | |
617 | ||
618 | MODULE_AUTHOR("Sage Weil <sage@newdream.net>"); | |
619 | MODULE_AUTHOR("Yehuda Sadeh <yehuda@hq.newdream.net>"); | |
620 | MODULE_AUTHOR("Patience Warnick <patience@newdream.net>"); | |
621 | MODULE_DESCRIPTION("Ceph filesystem for Linux"); | |
622 | MODULE_LICENSE("GPL"); |