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