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Commit | Line | Data |
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09c434b8 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
3d14c5d2 YS |
2 | |
3 | #include <linux/ceph/ceph_debug.h> | |
4 | #include <linux/backing-dev.h> | |
5 | #include <linux/ctype.h> | |
6 | #include <linux/fs.h> | |
7 | #include <linux/inet.h> | |
8 | #include <linux/in6.h> | |
e2c3d29b | 9 | #include <linux/key.h> |
4b2a58ab | 10 | #include <keys/ceph-type.h> |
3d14c5d2 YS |
11 | #include <linux/module.h> |
12 | #include <linux/mount.h> | |
757856d2 | 13 | #include <linux/nsproxy.h> |
3d14c5d2 YS |
14 | #include <linux/parser.h> |
15 | #include <linux/sched.h> | |
16 | #include <linux/seq_file.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/statfs.h> | |
19 | #include <linux/string.h> | |
eeb0bed5 | 20 | #include <linux/vmalloc.h> |
3d14c5d2 YS |
21 | |
22 | ||
1fe60e51 | 23 | #include <linux/ceph/ceph_features.h> |
3d14c5d2 YS |
24 | #include <linux/ceph/libceph.h> |
25 | #include <linux/ceph/debugfs.h> | |
26 | #include <linux/ceph/decode.h> | |
27 | #include <linux/ceph/mon_client.h> | |
28 | #include <linux/ceph/auth.h> | |
8323c3aa | 29 | #include "crypto.h" |
3d14c5d2 YS |
30 | |
31 | ||
72fe25e3 AE |
32 | /* |
33 | * Module compatibility interface. For now it doesn't do anything, | |
34 | * but its existence signals a certain level of functionality. | |
35 | * | |
36 | * The data buffer is used to pass information both to and from | |
37 | * libceph. The return value indicates whether libceph determines | |
38 | * it is compatible with the caller (from another kernel module), | |
39 | * given the provided data. | |
40 | * | |
41 | * The data pointer can be null. | |
42 | */ | |
43 | bool libceph_compatible(void *data) | |
44 | { | |
1e32d34c | 45 | return true; |
72fe25e3 AE |
46 | } |
47 | EXPORT_SYMBOL(libceph_compatible); | |
3d14c5d2 | 48 | |
d6a3408a ID |
49 | static int param_get_supported_features(char *buffer, |
50 | const struct kernel_param *kp) | |
51 | { | |
52 | return sprintf(buffer, "0x%llx", CEPH_FEATURES_SUPPORTED_DEFAULT); | |
53 | } | |
54 | static const struct kernel_param_ops param_ops_supported_features = { | |
55 | .get = param_get_supported_features, | |
56 | }; | |
57 | module_param_cb(supported_features, ¶m_ops_supported_features, NULL, | |
d6444062 | 58 | 0444); |
d6a3408a | 59 | |
3d14c5d2 YS |
60 | const char *ceph_msg_type_name(int type) |
61 | { | |
62 | switch (type) { | |
63 | case CEPH_MSG_SHUTDOWN: return "shutdown"; | |
64 | case CEPH_MSG_PING: return "ping"; | |
65 | case CEPH_MSG_AUTH: return "auth"; | |
66 | case CEPH_MSG_AUTH_REPLY: return "auth_reply"; | |
67 | case CEPH_MSG_MON_MAP: return "mon_map"; | |
68 | case CEPH_MSG_MON_GET_MAP: return "mon_get_map"; | |
69 | case CEPH_MSG_MON_SUBSCRIBE: return "mon_subscribe"; | |
70 | case CEPH_MSG_MON_SUBSCRIBE_ACK: return "mon_subscribe_ack"; | |
71 | case CEPH_MSG_STATFS: return "statfs"; | |
72 | case CEPH_MSG_STATFS_REPLY: return "statfs_reply"; | |
513a8243 ID |
73 | case CEPH_MSG_MON_GET_VERSION: return "mon_get_version"; |
74 | case CEPH_MSG_MON_GET_VERSION_REPLY: return "mon_get_version_reply"; | |
3d14c5d2 | 75 | case CEPH_MSG_MDS_MAP: return "mds_map"; |
f2f87877 | 76 | case CEPH_MSG_FS_MAP_USER: return "fs_map_user"; |
3d14c5d2 YS |
77 | case CEPH_MSG_CLIENT_SESSION: return "client_session"; |
78 | case CEPH_MSG_CLIENT_RECONNECT: return "client_reconnect"; | |
79 | case CEPH_MSG_CLIENT_REQUEST: return "client_request"; | |
80 | case CEPH_MSG_CLIENT_REQUEST_FORWARD: return "client_request_forward"; | |
81 | case CEPH_MSG_CLIENT_REPLY: return "client_reply"; | |
82 | case CEPH_MSG_CLIENT_CAPS: return "client_caps"; | |
83 | case CEPH_MSG_CLIENT_CAPRELEASE: return "client_cap_release"; | |
fb18a575 | 84 | case CEPH_MSG_CLIENT_QUOTA: return "client_quota"; |
3d14c5d2 YS |
85 | case CEPH_MSG_CLIENT_SNAP: return "client_snap"; |
86 | case CEPH_MSG_CLIENT_LEASE: return "client_lease"; | |
f2f87877 CX |
87 | case CEPH_MSG_POOLOP_REPLY: return "poolop_reply"; |
88 | case CEPH_MSG_POOLOP: return "poolop"; | |
89 | case CEPH_MSG_MON_COMMAND: return "mon_command"; | |
90 | case CEPH_MSG_MON_COMMAND_ACK: return "mon_command_ack"; | |
3d14c5d2 YS |
91 | case CEPH_MSG_OSD_MAP: return "osd_map"; |
92 | case CEPH_MSG_OSD_OP: return "osd_op"; | |
93 | case CEPH_MSG_OSD_OPREPLY: return "osd_opreply"; | |
a40c4f10 | 94 | case CEPH_MSG_WATCH_NOTIFY: return "watch_notify"; |
a02a946d | 95 | case CEPH_MSG_OSD_BACKOFF: return "osd_backoff"; |
3d14c5d2 YS |
96 | default: return "unknown"; |
97 | } | |
98 | } | |
99 | EXPORT_SYMBOL(ceph_msg_type_name); | |
100 | ||
101 | /* | |
102 | * Initially learn our fsid, or verify an fsid matches. | |
103 | */ | |
104 | int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid) | |
105 | { | |
106 | if (client->have_fsid) { | |
107 | if (ceph_fsid_compare(&client->fsid, fsid)) { | |
108 | pr_err("bad fsid, had %pU got %pU", | |
109 | &client->fsid, fsid); | |
110 | return -1; | |
111 | } | |
112 | } else { | |
3d14c5d2 | 113 | memcpy(&client->fsid, fsid, sizeof(*fsid)); |
3d14c5d2 YS |
114 | } |
115 | return 0; | |
116 | } | |
117 | EXPORT_SYMBOL(ceph_check_fsid); | |
118 | ||
119 | static int strcmp_null(const char *s1, const char *s2) | |
120 | { | |
121 | if (!s1 && !s2) | |
122 | return 0; | |
123 | if (s1 && !s2) | |
124 | return -1; | |
125 | if (!s1 && s2) | |
126 | return 1; | |
127 | return strcmp(s1, s2); | |
128 | } | |
129 | ||
130 | int ceph_compare_options(struct ceph_options *new_opt, | |
131 | struct ceph_client *client) | |
132 | { | |
133 | struct ceph_options *opt1 = new_opt; | |
134 | struct ceph_options *opt2 = client->options; | |
135 | int ofs = offsetof(struct ceph_options, mon_addr); | |
136 | int i; | |
137 | int ret; | |
138 | ||
757856d2 ID |
139 | /* |
140 | * Don't bother comparing options if network namespaces don't | |
141 | * match. | |
142 | */ | |
143 | if (!net_eq(current->nsproxy->net_ns, read_pnet(&client->msgr.net))) | |
144 | return -1; | |
145 | ||
3d14c5d2 YS |
146 | ret = memcmp(opt1, opt2, ofs); |
147 | if (ret) | |
148 | return ret; | |
149 | ||
150 | ret = strcmp_null(opt1->name, opt2->name); | |
151 | if (ret) | |
152 | return ret; | |
153 | ||
8323c3aa TV |
154 | if (opt1->key && !opt2->key) |
155 | return -1; | |
156 | if (!opt1->key && opt2->key) | |
157 | return 1; | |
158 | if (opt1->key && opt2->key) { | |
159 | if (opt1->key->type != opt2->key->type) | |
160 | return -1; | |
161 | if (opt1->key->created.tv_sec != opt2->key->created.tv_sec) | |
162 | return -1; | |
163 | if (opt1->key->created.tv_nsec != opt2->key->created.tv_nsec) | |
164 | return -1; | |
165 | if (opt1->key->len != opt2->key->len) | |
166 | return -1; | |
167 | if (opt1->key->key && !opt2->key->key) | |
168 | return -1; | |
169 | if (!opt1->key->key && opt2->key->key) | |
170 | return 1; | |
171 | if (opt1->key->key && opt2->key->key) { | |
172 | ret = memcmp(opt1->key->key, opt2->key->key, opt1->key->len); | |
173 | if (ret) | |
174 | return ret; | |
175 | } | |
176 | } | |
3d14c5d2 YS |
177 | |
178 | /* any matching mon ip implies a match */ | |
179 | for (i = 0; i < opt1->num_mon; i++) { | |
180 | if (ceph_monmap_contains(client->monc.monmap, | |
181 | &opt1->mon_addr[i])) | |
182 | return 0; | |
183 | } | |
184 | return -1; | |
185 | } | |
186 | EXPORT_SYMBOL(ceph_compare_options); | |
187 | ||
eeb0bed5 ID |
188 | void *ceph_kvmalloc(size_t size, gfp_t flags) |
189 | { | |
190 | if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) { | |
191 | void *ptr = kmalloc(size, flags | __GFP_NOWARN); | |
192 | if (ptr) | |
193 | return ptr; | |
194 | } | |
195 | ||
19809c2d | 196 | return __vmalloc(size, flags, PAGE_KERNEL); |
eeb0bed5 ID |
197 | } |
198 | ||
3d14c5d2 YS |
199 | |
200 | static int parse_fsid(const char *str, struct ceph_fsid *fsid) | |
201 | { | |
202 | int i = 0; | |
203 | char tmp[3]; | |
204 | int err = -EINVAL; | |
205 | int d; | |
206 | ||
207 | dout("parse_fsid '%s'\n", str); | |
208 | tmp[2] = 0; | |
209 | while (*str && i < 16) { | |
210 | if (ispunct(*str)) { | |
211 | str++; | |
212 | continue; | |
213 | } | |
214 | if (!isxdigit(str[0]) || !isxdigit(str[1])) | |
215 | break; | |
216 | tmp[0] = str[0]; | |
217 | tmp[1] = str[1]; | |
218 | if (sscanf(tmp, "%x", &d) < 1) | |
219 | break; | |
220 | fsid->fsid[i] = d & 0xff; | |
221 | i++; | |
222 | str += 2; | |
223 | } | |
224 | ||
225 | if (i == 16) | |
226 | err = 0; | |
4c069a58 | 227 | dout("parse_fsid ret %d got fsid %pU\n", err, fsid); |
3d14c5d2 YS |
228 | return err; |
229 | } | |
230 | ||
231 | /* | |
232 | * ceph options | |
233 | */ | |
234 | enum { | |
235 | Opt_osdtimeout, | |
236 | Opt_osdkeepalivetimeout, | |
237 | Opt_mount_timeout, | |
238 | Opt_osd_idle_ttl, | |
7cc5e38f | 239 | Opt_osd_request_timeout, |
3d14c5d2 YS |
240 | Opt_last_int, |
241 | /* int args above */ | |
242 | Opt_fsid, | |
243 | Opt_name, | |
244 | Opt_secret, | |
e2c3d29b | 245 | Opt_key, |
3d14c5d2 YS |
246 | Opt_ip, |
247 | Opt_last_string, | |
248 | /* string args above */ | |
cffaba15 | 249 | Opt_share, |
3d14c5d2 | 250 | Opt_noshare, |
cffaba15 | 251 | Opt_crc, |
3d14c5d2 | 252 | Opt_nocrc, |
a3fc9800 YZ |
253 | Opt_cephx_require_signatures, |
254 | Opt_nocephx_require_signatures, | |
a51983e4 ID |
255 | Opt_cephx_sign_messages, |
256 | Opt_nocephx_sign_messages, | |
ba988f87 CH |
257 | Opt_tcp_nodelay, |
258 | Opt_notcp_nodelay, | |
02b2f549 | 259 | Opt_abort_on_full, |
3d14c5d2 YS |
260 | }; |
261 | ||
262 | static match_table_t opt_tokens = { | |
263 | {Opt_osdtimeout, "osdtimeout=%d"}, | |
264 | {Opt_osdkeepalivetimeout, "osdkeepalive=%d"}, | |
265 | {Opt_mount_timeout, "mount_timeout=%d"}, | |
266 | {Opt_osd_idle_ttl, "osd_idle_ttl=%d"}, | |
7cc5e38f | 267 | {Opt_osd_request_timeout, "osd_request_timeout=%d"}, |
3d14c5d2 YS |
268 | /* int args above */ |
269 | {Opt_fsid, "fsid=%s"}, | |
270 | {Opt_name, "name=%s"}, | |
271 | {Opt_secret, "secret=%s"}, | |
e2c3d29b | 272 | {Opt_key, "key=%s"}, |
3d14c5d2 YS |
273 | {Opt_ip, "ip=%s"}, |
274 | /* string args above */ | |
cffaba15 | 275 | {Opt_share, "share"}, |
3d14c5d2 | 276 | {Opt_noshare, "noshare"}, |
cffaba15 | 277 | {Opt_crc, "crc"}, |
3d14c5d2 | 278 | {Opt_nocrc, "nocrc"}, |
a3fc9800 YZ |
279 | {Opt_cephx_require_signatures, "cephx_require_signatures"}, |
280 | {Opt_nocephx_require_signatures, "nocephx_require_signatures"}, | |
a51983e4 ID |
281 | {Opt_cephx_sign_messages, "cephx_sign_messages"}, |
282 | {Opt_nocephx_sign_messages, "nocephx_sign_messages"}, | |
ba988f87 CH |
283 | {Opt_tcp_nodelay, "tcp_nodelay"}, |
284 | {Opt_notcp_nodelay, "notcp_nodelay"}, | |
02b2f549 | 285 | {Opt_abort_on_full, "abort_on_full"}, |
3d14c5d2 YS |
286 | {-1, NULL} |
287 | }; | |
288 | ||
289 | void ceph_destroy_options(struct ceph_options *opt) | |
290 | { | |
291 | dout("destroy_options %p\n", opt); | |
292 | kfree(opt->name); | |
8323c3aa TV |
293 | if (opt->key) { |
294 | ceph_crypto_key_destroy(opt->key); | |
295 | kfree(opt->key); | |
296 | } | |
1cad7893 | 297 | kfree(opt->mon_addr); |
3d14c5d2 YS |
298 | kfree(opt); |
299 | } | |
300 | EXPORT_SYMBOL(ceph_destroy_options); | |
301 | ||
e2c3d29b TV |
302 | /* get secret from key store */ |
303 | static int get_secret(struct ceph_crypto_key *dst, const char *name) { | |
304 | struct key *ukey; | |
305 | int key_err; | |
306 | int err = 0; | |
4b2a58ab | 307 | struct ceph_crypto_key *ckey; |
e2c3d29b | 308 | |
4b2a58ab | 309 | ukey = request_key(&key_type_ceph, name, NULL); |
bad87216 | 310 | if (IS_ERR(ukey)) { |
e2c3d29b TV |
311 | /* request_key errors don't map nicely to mount(2) |
312 | errors; don't even try, but still printk */ | |
313 | key_err = PTR_ERR(ukey); | |
314 | switch (key_err) { | |
315 | case -ENOKEY: | |
b9a67899 JP |
316 | pr_warn("ceph: Mount failed due to key not found: %s\n", |
317 | name); | |
e2c3d29b TV |
318 | break; |
319 | case -EKEYEXPIRED: | |
b9a67899 JP |
320 | pr_warn("ceph: Mount failed due to expired key: %s\n", |
321 | name); | |
e2c3d29b TV |
322 | break; |
323 | case -EKEYREVOKED: | |
b9a67899 JP |
324 | pr_warn("ceph: Mount failed due to revoked key: %s\n", |
325 | name); | |
e2c3d29b TV |
326 | break; |
327 | default: | |
b9a67899 JP |
328 | pr_warn("ceph: Mount failed due to unknown key error %d: %s\n", |
329 | key_err, name); | |
e2c3d29b TV |
330 | } |
331 | err = -EPERM; | |
332 | goto out; | |
333 | } | |
334 | ||
146aa8b1 | 335 | ckey = ukey->payload.data[0]; |
4b2a58ab | 336 | err = ceph_crypto_key_clone(dst, ckey); |
e2c3d29b TV |
337 | if (err) |
338 | goto out_key; | |
339 | /* pass through, err is 0 */ | |
340 | ||
341 | out_key: | |
342 | key_put(ukey); | |
343 | out: | |
344 | return err; | |
345 | } | |
346 | ||
ee57741c AE |
347 | struct ceph_options * |
348 | ceph_parse_options(char *options, const char *dev_name, | |
349 | const char *dev_name_end, | |
350 | int (*parse_extra_token)(char *c, void *private), | |
351 | void *private) | |
3d14c5d2 YS |
352 | { |
353 | struct ceph_options *opt; | |
354 | const char *c; | |
355 | int err = -ENOMEM; | |
356 | substring_t argstr[MAX_OPT_ARGS]; | |
357 | ||
358 | opt = kzalloc(sizeof(*opt), GFP_KERNEL); | |
359 | if (!opt) | |
ee57741c | 360 | return ERR_PTR(-ENOMEM); |
3d14c5d2 YS |
361 | opt->mon_addr = kcalloc(CEPH_MAX_MON, sizeof(*opt->mon_addr), |
362 | GFP_KERNEL); | |
363 | if (!opt->mon_addr) | |
364 | goto out; | |
365 | ||
366 | dout("parse_options %p options '%s' dev_name '%s'\n", opt, options, | |
367 | dev_name); | |
368 | ||
369 | /* start with defaults */ | |
370 | opt->flags = CEPH_OPT_DEFAULT; | |
3d14c5d2 | 371 | opt->osd_keepalive_timeout = CEPH_OSD_KEEPALIVE_DEFAULT; |
a319bf56 ID |
372 | opt->mount_timeout = CEPH_MOUNT_TIMEOUT_DEFAULT; |
373 | opt->osd_idle_ttl = CEPH_OSD_IDLE_TTL_DEFAULT; | |
7cc5e38f | 374 | opt->osd_request_timeout = CEPH_OSD_REQUEST_TIMEOUT_DEFAULT; |
3d14c5d2 YS |
375 | |
376 | /* get mon ip(s) */ | |
377 | /* ip1[:port1][,ip2[:port2]...] */ | |
378 | err = ceph_parse_ips(dev_name, dev_name_end, opt->mon_addr, | |
379 | CEPH_MAX_MON, &opt->num_mon); | |
380 | if (err < 0) | |
381 | goto out; | |
382 | ||
383 | /* parse mount options */ | |
384 | while ((c = strsep(&options, ",")) != NULL) { | |
17173c82 | 385 | int token, intval; |
3d14c5d2 YS |
386 | if (!*c) |
387 | continue; | |
388 | err = -EINVAL; | |
389 | token = match_token((char *)c, opt_tokens, argstr); | |
010e3b48 | 390 | if (token < 0 && parse_extra_token) { |
3d14c5d2 YS |
391 | /* extra? */ |
392 | err = parse_extra_token((char *)c, private); | |
393 | if (err < 0) { | |
394 | pr_err("bad option at '%s'\n", c); | |
395 | goto out; | |
396 | } | |
397 | continue; | |
398 | } | |
399 | if (token < Opt_last_int) { | |
17173c82 CX |
400 | err = match_int(&argstr[0], &intval); |
401 | if (err < 0) { | |
2f56b6ba | 402 | pr_err("bad option arg (not int) at '%s'\n", c); |
17173c82 | 403 | goto out; |
3d14c5d2 YS |
404 | } |
405 | dout("got int token %d val %d\n", token, intval); | |
406 | } else if (token > Opt_last_int && token < Opt_last_string) { | |
407 | dout("got string token %d val %s\n", token, | |
408 | argstr[0].from); | |
409 | } else { | |
410 | dout("got token %d\n", token); | |
411 | } | |
412 | switch (token) { | |
413 | case Opt_ip: | |
414 | err = ceph_parse_ips(argstr[0].from, | |
415 | argstr[0].to, | |
416 | &opt->my_addr, | |
417 | 1, NULL); | |
418 | if (err < 0) | |
419 | goto out; | |
420 | opt->flags |= CEPH_OPT_MYIP; | |
421 | break; | |
422 | ||
423 | case Opt_fsid: | |
424 | err = parse_fsid(argstr[0].from, &opt->fsid); | |
425 | if (err == 0) | |
426 | opt->flags |= CEPH_OPT_FSID; | |
427 | break; | |
428 | case Opt_name: | |
937441f3 | 429 | kfree(opt->name); |
3d14c5d2 YS |
430 | opt->name = kstrndup(argstr[0].from, |
431 | argstr[0].to-argstr[0].from, | |
432 | GFP_KERNEL); | |
affff077 CX |
433 | if (!opt->name) { |
434 | err = -ENOMEM; | |
435 | goto out; | |
436 | } | |
3d14c5d2 YS |
437 | break; |
438 | case Opt_secret: | |
937441f3 CX |
439 | ceph_crypto_key_destroy(opt->key); |
440 | kfree(opt->key); | |
441 | ||
8323c3aa TV |
442 | opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL); |
443 | if (!opt->key) { | |
444 | err = -ENOMEM; | |
445 | goto out; | |
446 | } | |
447 | err = ceph_crypto_key_unarmor(opt->key, argstr[0].from); | |
448 | if (err < 0) | |
449 | goto out; | |
3d14c5d2 | 450 | break; |
e2c3d29b | 451 | case Opt_key: |
937441f3 CX |
452 | ceph_crypto_key_destroy(opt->key); |
453 | kfree(opt->key); | |
454 | ||
e2c3d29b TV |
455 | opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL); |
456 | if (!opt->key) { | |
457 | err = -ENOMEM; | |
458 | goto out; | |
459 | } | |
460 | err = get_secret(opt->key, argstr[0].from); | |
461 | if (err < 0) | |
462 | goto out; | |
463 | break; | |
3d14c5d2 YS |
464 | |
465 | /* misc */ | |
466 | case Opt_osdtimeout: | |
b9a67899 | 467 | pr_warn("ignoring deprecated osdtimeout option\n"); |
3d14c5d2 YS |
468 | break; |
469 | case Opt_osdkeepalivetimeout: | |
a319bf56 ID |
470 | /* 0 isn't well defined right now, reject it */ |
471 | if (intval < 1 || intval > INT_MAX / 1000) { | |
472 | pr_err("osdkeepalive out of range\n"); | |
473 | err = -EINVAL; | |
474 | goto out; | |
475 | } | |
476 | opt->osd_keepalive_timeout = | |
477 | msecs_to_jiffies(intval * 1000); | |
3d14c5d2 YS |
478 | break; |
479 | case Opt_osd_idle_ttl: | |
a319bf56 ID |
480 | /* 0 isn't well defined right now, reject it */ |
481 | if (intval < 1 || intval > INT_MAX / 1000) { | |
482 | pr_err("osd_idle_ttl out of range\n"); | |
483 | err = -EINVAL; | |
484 | goto out; | |
485 | } | |
486 | opt->osd_idle_ttl = msecs_to_jiffies(intval * 1000); | |
3d14c5d2 YS |
487 | break; |
488 | case Opt_mount_timeout: | |
a319bf56 ID |
489 | /* 0 is "wait forever" (i.e. infinite timeout) */ |
490 | if (intval < 0 || intval > INT_MAX / 1000) { | |
491 | pr_err("mount_timeout out of range\n"); | |
492 | err = -EINVAL; | |
493 | goto out; | |
494 | } | |
495 | opt->mount_timeout = msecs_to_jiffies(intval * 1000); | |
3d14c5d2 | 496 | break; |
7cc5e38f ID |
497 | case Opt_osd_request_timeout: |
498 | /* 0 is "wait forever" (i.e. infinite timeout) */ | |
499 | if (intval < 0 || intval > INT_MAX / 1000) { | |
500 | pr_err("osd_request_timeout out of range\n"); | |
501 | err = -EINVAL; | |
502 | goto out; | |
503 | } | |
504 | opt->osd_request_timeout = msecs_to_jiffies(intval * 1000); | |
505 | break; | |
3d14c5d2 | 506 | |
cffaba15 AE |
507 | case Opt_share: |
508 | opt->flags &= ~CEPH_OPT_NOSHARE; | |
509 | break; | |
3d14c5d2 YS |
510 | case Opt_noshare: |
511 | opt->flags |= CEPH_OPT_NOSHARE; | |
512 | break; | |
513 | ||
cffaba15 AE |
514 | case Opt_crc: |
515 | opt->flags &= ~CEPH_OPT_NOCRC; | |
516 | break; | |
3d14c5d2 YS |
517 | case Opt_nocrc: |
518 | opt->flags |= CEPH_OPT_NOCRC; | |
519 | break; | |
ba988f87 | 520 | |
a3fc9800 YZ |
521 | case Opt_cephx_require_signatures: |
522 | opt->flags &= ~CEPH_OPT_NOMSGAUTH; | |
523 | break; | |
524 | case Opt_nocephx_require_signatures: | |
525 | opt->flags |= CEPH_OPT_NOMSGAUTH; | |
526 | break; | |
a51983e4 ID |
527 | case Opt_cephx_sign_messages: |
528 | opt->flags &= ~CEPH_OPT_NOMSGSIGN; | |
529 | break; | |
530 | case Opt_nocephx_sign_messages: | |
531 | opt->flags |= CEPH_OPT_NOMSGSIGN; | |
532 | break; | |
3d14c5d2 | 533 | |
ba988f87 CH |
534 | case Opt_tcp_nodelay: |
535 | opt->flags |= CEPH_OPT_TCP_NODELAY; | |
536 | break; | |
537 | case Opt_notcp_nodelay: | |
538 | opt->flags &= ~CEPH_OPT_TCP_NODELAY; | |
539 | break; | |
540 | ||
02b2f549 DY |
541 | case Opt_abort_on_full: |
542 | opt->flags |= CEPH_OPT_ABORT_ON_FULL; | |
543 | break; | |
544 | ||
3d14c5d2 YS |
545 | default: |
546 | BUG_ON(token); | |
547 | } | |
548 | } | |
549 | ||
550 | /* success */ | |
ee57741c | 551 | return opt; |
3d14c5d2 YS |
552 | |
553 | out: | |
554 | ceph_destroy_options(opt); | |
ee57741c | 555 | return ERR_PTR(err); |
3d14c5d2 YS |
556 | } |
557 | EXPORT_SYMBOL(ceph_parse_options); | |
558 | ||
02b2f549 DY |
559 | int ceph_print_client_options(struct seq_file *m, struct ceph_client *client, |
560 | bool show_all) | |
ff40f9ae ID |
561 | { |
562 | struct ceph_options *opt = client->options; | |
563 | size_t pos = m->count; | |
564 | ||
a068acf2 KC |
565 | if (opt->name) { |
566 | seq_puts(m, "name="); | |
567 | seq_escape(m, opt->name, ", \t\n\\"); | |
568 | seq_putc(m, ','); | |
569 | } | |
ff40f9ae ID |
570 | if (opt->key) |
571 | seq_puts(m, "secret=<hidden>,"); | |
572 | ||
573 | if (opt->flags & CEPH_OPT_FSID) | |
574 | seq_printf(m, "fsid=%pU,", &opt->fsid); | |
575 | if (opt->flags & CEPH_OPT_NOSHARE) | |
576 | seq_puts(m, "noshare,"); | |
577 | if (opt->flags & CEPH_OPT_NOCRC) | |
578 | seq_puts(m, "nocrc,"); | |
579 | if (opt->flags & CEPH_OPT_NOMSGAUTH) | |
580 | seq_puts(m, "nocephx_require_signatures,"); | |
a51983e4 ID |
581 | if (opt->flags & CEPH_OPT_NOMSGSIGN) |
582 | seq_puts(m, "nocephx_sign_messages,"); | |
ff40f9ae ID |
583 | if ((opt->flags & CEPH_OPT_TCP_NODELAY) == 0) |
584 | seq_puts(m, "notcp_nodelay,"); | |
02b2f549 DY |
585 | if (show_all && (opt->flags & CEPH_OPT_ABORT_ON_FULL)) |
586 | seq_puts(m, "abort_on_full,"); | |
ff40f9ae ID |
587 | |
588 | if (opt->mount_timeout != CEPH_MOUNT_TIMEOUT_DEFAULT) | |
a319bf56 ID |
589 | seq_printf(m, "mount_timeout=%d,", |
590 | jiffies_to_msecs(opt->mount_timeout) / 1000); | |
ff40f9ae | 591 | if (opt->osd_idle_ttl != CEPH_OSD_IDLE_TTL_DEFAULT) |
a319bf56 ID |
592 | seq_printf(m, "osd_idle_ttl=%d,", |
593 | jiffies_to_msecs(opt->osd_idle_ttl) / 1000); | |
ff40f9ae ID |
594 | if (opt->osd_keepalive_timeout != CEPH_OSD_KEEPALIVE_DEFAULT) |
595 | seq_printf(m, "osdkeepalivetimeout=%d,", | |
a319bf56 | 596 | jiffies_to_msecs(opt->osd_keepalive_timeout) / 1000); |
7cc5e38f ID |
597 | if (opt->osd_request_timeout != CEPH_OSD_REQUEST_TIMEOUT_DEFAULT) |
598 | seq_printf(m, "osd_request_timeout=%d,", | |
599 | jiffies_to_msecs(opt->osd_request_timeout) / 1000); | |
ff40f9ae ID |
600 | |
601 | /* drop redundant comma */ | |
602 | if (m->count != pos) | |
603 | m->count--; | |
604 | ||
605 | return 0; | |
606 | } | |
607 | EXPORT_SYMBOL(ceph_print_client_options); | |
608 | ||
005a07bf ID |
609 | struct ceph_entity_addr *ceph_client_addr(struct ceph_client *client) |
610 | { | |
611 | return &client->msgr.inst.addr; | |
612 | } | |
613 | EXPORT_SYMBOL(ceph_client_addr); | |
614 | ||
033268a5 | 615 | u64 ceph_client_gid(struct ceph_client *client) |
3d14c5d2 YS |
616 | { |
617 | return client->monc.auth->global_id; | |
618 | } | |
033268a5 | 619 | EXPORT_SYMBOL(ceph_client_gid); |
3d14c5d2 YS |
620 | |
621 | /* | |
622 | * create a fresh client instance | |
623 | */ | |
74da4a0f | 624 | struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private) |
3d14c5d2 YS |
625 | { |
626 | struct ceph_client *client; | |
6ab00d46 | 627 | struct ceph_entity_addr *myaddr = NULL; |
ae5b806a JD |
628 | int err; |
629 | ||
630 | err = wait_for_random_bytes(); | |
631 | if (err < 0) | |
632 | return ERR_PTR(err); | |
3d14c5d2 YS |
633 | |
634 | client = kzalloc(sizeof(*client), GFP_KERNEL); | |
635 | if (client == NULL) | |
636 | return ERR_PTR(-ENOMEM); | |
637 | ||
638 | client->private = private; | |
639 | client->options = opt; | |
640 | ||
641 | mutex_init(&client->mount_mutex); | |
642 | init_waitqueue_head(&client->auth_wq); | |
643 | client->auth_err = 0; | |
644 | ||
645 | client->extra_mon_dispatch = NULL; | |
74da4a0f ID |
646 | client->supported_features = CEPH_FEATURES_SUPPORTED_DEFAULT; |
647 | client->required_features = CEPH_FEATURES_REQUIRED_DEFAULT; | |
648 | ||
649 | if (!ceph_test_opt(client, NOMSGAUTH)) | |
650 | client->required_features |= CEPH_FEATURE_MSG_AUTH; | |
6ab00d46 SW |
651 | |
652 | /* msgr */ | |
653 | if (ceph_test_opt(client, MYIP)) | |
654 | myaddr = &client->options->my_addr; | |
ba988f87 | 655 | |
859bff51 | 656 | ceph_messenger_init(&client->msgr, myaddr); |
3d14c5d2 YS |
657 | |
658 | /* subsystems */ | |
659 | err = ceph_monc_init(&client->monc, client); | |
660 | if (err < 0) | |
15d9882c | 661 | goto fail; |
3d14c5d2 YS |
662 | err = ceph_osdc_init(&client->osdc, client); |
663 | if (err < 0) | |
664 | goto fail_monc; | |
665 | ||
666 | return client; | |
667 | ||
668 | fail_monc: | |
669 | ceph_monc_stop(&client->monc); | |
670 | fail: | |
757856d2 | 671 | ceph_messenger_fini(&client->msgr); |
3d14c5d2 YS |
672 | kfree(client); |
673 | return ERR_PTR(err); | |
674 | } | |
675 | EXPORT_SYMBOL(ceph_create_client); | |
676 | ||
677 | void ceph_destroy_client(struct ceph_client *client) | |
678 | { | |
679 | dout("destroy_client %p\n", client); | |
680 | ||
a2a32584 GH |
681 | atomic_set(&client->msgr.stopping, 1); |
682 | ||
3d14c5d2 YS |
683 | /* unmount */ |
684 | ceph_osdc_stop(&client->osdc); | |
3d14c5d2 | 685 | ceph_monc_stop(&client->monc); |
757856d2 | 686 | ceph_messenger_fini(&client->msgr); |
3d14c5d2 YS |
687 | |
688 | ceph_debugfs_client_cleanup(client); | |
689 | ||
3d14c5d2 YS |
690 | ceph_destroy_options(client->options); |
691 | ||
692 | kfree(client); | |
693 | dout("destroy_client %p done\n", client); | |
694 | } | |
695 | EXPORT_SYMBOL(ceph_destroy_client); | |
696 | ||
697 | /* | |
698 | * true if we have the mon map (and have thus joined the cluster) | |
699 | */ | |
3b33f692 | 700 | static bool have_mon_and_osd_map(struct ceph_client *client) |
3d14c5d2 YS |
701 | { |
702 | return client->monc.monmap && client->monc.monmap->epoch && | |
703 | client->osdc.osdmap && client->osdc.osdmap->epoch; | |
704 | } | |
705 | ||
706 | /* | |
707 | * mount: join the ceph cluster, and open root directory. | |
708 | */ | |
709 | int __ceph_open_session(struct ceph_client *client, unsigned long started) | |
710 | { | |
a319bf56 | 711 | unsigned long timeout = client->options->mount_timeout; |
216639dd | 712 | long err; |
3d14c5d2 | 713 | |
3d14c5d2 YS |
714 | /* open session, and wait for mon and osd maps */ |
715 | err = ceph_monc_open_session(&client->monc); | |
716 | if (err < 0) | |
717 | return err; | |
718 | ||
719 | while (!have_mon_and_osd_map(client)) { | |
3d14c5d2 | 720 | if (timeout && time_after_eq(jiffies, started + timeout)) |
216639dd | 721 | return -ETIMEDOUT; |
3d14c5d2 YS |
722 | |
723 | /* wait */ | |
724 | dout("mount waiting for mon_map\n"); | |
725 | err = wait_event_interruptible_timeout(client->auth_wq, | |
726 | have_mon_and_osd_map(client) || (client->auth_err < 0), | |
a319bf56 | 727 | ceph_timeout_jiffies(timeout)); |
216639dd | 728 | if (err < 0) |
3d14c5d2 YS |
729 | return err; |
730 | if (client->auth_err < 0) | |
731 | return client->auth_err; | |
732 | } | |
733 | ||
033268a5 ID |
734 | pr_info("client%llu fsid %pU\n", ceph_client_gid(client), |
735 | &client->fsid); | |
02ac956c ID |
736 | ceph_debugfs_client_init(client); |
737 | ||
3d14c5d2 YS |
738 | return 0; |
739 | } | |
740 | EXPORT_SYMBOL(__ceph_open_session); | |
741 | ||
3d14c5d2 YS |
742 | int ceph_open_session(struct ceph_client *client) |
743 | { | |
744 | int ret; | |
745 | unsigned long started = jiffies; /* note the start time */ | |
746 | ||
747 | dout("open_session start\n"); | |
748 | mutex_lock(&client->mount_mutex); | |
749 | ||
750 | ret = __ceph_open_session(client, started); | |
751 | ||
752 | mutex_unlock(&client->mount_mutex); | |
753 | return ret; | |
754 | } | |
755 | EXPORT_SYMBOL(ceph_open_session); | |
756 | ||
bb229bbb ID |
757 | int ceph_wait_for_latest_osdmap(struct ceph_client *client, |
758 | unsigned long timeout) | |
759 | { | |
760 | u64 newest_epoch; | |
761 | int ret; | |
762 | ||
763 | ret = ceph_monc_get_version(&client->monc, "osdmap", &newest_epoch); | |
764 | if (ret) | |
765 | return ret; | |
766 | ||
767 | if (client->osdc.osdmap->epoch >= newest_epoch) | |
768 | return 0; | |
769 | ||
770 | ceph_osdc_maybe_request_map(&client->osdc); | |
771 | return ceph_monc_wait_osdmap(&client->monc, newest_epoch, timeout); | |
772 | } | |
773 | EXPORT_SYMBOL(ceph_wait_for_latest_osdmap); | |
3d14c5d2 YS |
774 | |
775 | static int __init init_ceph_lib(void) | |
776 | { | |
777 | int ret = 0; | |
778 | ||
1a829ff2 | 779 | ceph_debugfs_init(); |
3d14c5d2 | 780 | |
4b2a58ab | 781 | ret = ceph_crypto_init(); |
3d14c5d2 YS |
782 | if (ret < 0) |
783 | goto out_debugfs; | |
784 | ||
4b2a58ab TV |
785 | ret = ceph_msgr_init(); |
786 | if (ret < 0) | |
787 | goto out_crypto; | |
788 | ||
5522ae0b AE |
789 | ret = ceph_osdc_setup(); |
790 | if (ret < 0) | |
791 | goto out_msgr; | |
792 | ||
4f6a7e5e SW |
793 | pr_info("loaded (mon/osd proto %d/%d)\n", |
794 | CEPH_MONC_PROTOCOL, CEPH_OSDC_PROTOCOL); | |
3d14c5d2 YS |
795 | |
796 | return 0; | |
797 | ||
5522ae0b AE |
798 | out_msgr: |
799 | ceph_msgr_exit(); | |
4b2a58ab TV |
800 | out_crypto: |
801 | ceph_crypto_shutdown(); | |
3d14c5d2 YS |
802 | out_debugfs: |
803 | ceph_debugfs_cleanup(); | |
3d14c5d2 YS |
804 | return ret; |
805 | } | |
806 | ||
807 | static void __exit exit_ceph_lib(void) | |
808 | { | |
809 | dout("exit_ceph_lib\n"); | |
51e92737 YZ |
810 | WARN_ON(!ceph_strings_empty()); |
811 | ||
5522ae0b | 812 | ceph_osdc_cleanup(); |
3d14c5d2 | 813 | ceph_msgr_exit(); |
4b2a58ab | 814 | ceph_crypto_shutdown(); |
3d14c5d2 YS |
815 | ceph_debugfs_cleanup(); |
816 | } | |
817 | ||
818 | module_init(init_ceph_lib); | |
819 | module_exit(exit_ceph_lib); | |
820 | ||
821 | MODULE_AUTHOR("Sage Weil <sage@newdream.net>"); | |
822 | MODULE_AUTHOR("Yehuda Sadeh <yehuda@hq.newdream.net>"); | |
823 | MODULE_AUTHOR("Patience Warnick <patience@newdream.net>"); | |
6c13a6bb | 824 | MODULE_DESCRIPTION("Ceph core library"); |
3d14c5d2 | 825 | MODULE_LICENSE("GPL"); |