blob: 9cab80207ced6346b5b5b97b56e98674f28def73 [file] [log] [blame]
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -07001
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>
Tommi Virtanene2c3d292011-03-25 16:40:48 -07008#include <linux/key.h>
Tommi Virtanen4b2a58a2011-03-28 14:59:38 -07009#include <keys/ceph-type.h>
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070010#include <linux/module.h>
11#include <linux/mount.h>
Ilya Dryomov757856d2015-06-25 17:47:45 +030012#include <linux/nsproxy.h>
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070013#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>
Ilya Dryomoveeb0bed2014-01-09 20:08:21 +020019#include <linux/vmalloc.h>
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070020
21
Sage Weil1fe60e52012-07-30 16:23:22 -070022#include <linux/ceph/ceph_features.h>
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070023#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>
Tommi Virtanen8323c3a2011-03-25 16:32:57 -070028#include "crypto.h"
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070029
30
Alex Elder72fe25e2013-01-30 11:13:33 -060031/*
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 */
42bool libceph_compatible(void *data)
43{
Alex Elder1e32d342013-01-30 11:13:33 -060044 return true;
Alex Elder72fe25e2013-01-30 11:13:33 -060045}
46EXPORT_SYMBOL(libceph_compatible);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070047
Ilya Dryomovd6a34082017-03-03 18:16:07 +010048static 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}
53static const struct kernel_param_ops param_ops_supported_features = {
54 .get = param_get_supported_features,
55};
56module_param_cb(supported_features, &param_ops_supported_features, NULL,
Joe Perchesd6444062018-03-23 15:54:38 -070057 0444);
Ilya Dryomovd6a34082017-03-03 18:16:07 +010058
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070059const 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";
Ilya Dryomov513a8242014-05-13 11:19:26 +040072 case CEPH_MSG_MON_GET_VERSION: return "mon_get_version";
73 case CEPH_MSG_MON_GET_VERSION_REPLY: return "mon_get_version_reply";
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070074 case CEPH_MSG_MDS_MAP: return "mds_map";
Chengguang Xuf2f87872018-02-22 15:47:05 +080075 case CEPH_MSG_FS_MAP_USER: return "fs_map_user";
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070076 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";
Luis Henriquesfb18a572018-01-05 10:47:18 +000083 case CEPH_MSG_CLIENT_QUOTA: return "client_quota";
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070084 case CEPH_MSG_CLIENT_SNAP: return "client_snap";
85 case CEPH_MSG_CLIENT_LEASE: return "client_lease";
Chengguang Xuf2f87872018-02-22 15:47:05 +080086 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";
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070090 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";
Yehuda Sadeha40c4f12011-03-21 15:07:16 -070093 case CEPH_MSG_WATCH_NOTIFY: return "watch_notify";
Ilya Dryomova02a9462017-06-19 12:18:05 +020094 case CEPH_MSG_OSD_BACKOFF: return "osd_backoff";
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -070095 default: return "unknown";
96 }
97}
98EXPORT_SYMBOL(ceph_msg_type_name);
99
100/*
101 * Initially learn our fsid, or verify an fsid matches.
102 */
103int 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 {
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700112 memcpy(&client->fsid, fsid, sizeof(*fsid));
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700113 }
114 return 0;
115}
116EXPORT_SYMBOL(ceph_check_fsid);
117
118static 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
129int 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
Ilya Dryomov757856d2015-06-25 17:47:45 +0300138 /*
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
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700145 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
Tommi Virtanen8323c3a2011-03-25 16:32:57 -0700153 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 }
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700176
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}
185EXPORT_SYMBOL(ceph_compare_options);
186
Ilya Dryomoveeb0bed2014-01-09 20:08:21 +0200187void *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
Michal Hocko19809c22017-05-08 15:57:44 -0700195 return __vmalloc(size, flags, PAGE_KERNEL);
Ilya Dryomoveeb0bed2014-01-09 20:08:21 +0200196}
197
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700198
199static 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;
Chengguang Xu4c069a52018-01-30 16:29:17 +0800226 dout("parse_fsid ret %d got fsid %pU\n", err, fsid);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700227 return err;
228}
229
230/*
231 * ceph options
232 */
233enum {
234 Opt_osdtimeout,
235 Opt_osdkeepalivetimeout,
236 Opt_mount_timeout,
237 Opt_osd_idle_ttl,
Ilya Dryomov7cc5e382017-02-12 17:11:07 +0100238 Opt_osd_request_timeout,
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700239 Opt_last_int,
240 /* int args above */
241 Opt_fsid,
242 Opt_name,
243 Opt_secret,
Tommi Virtanene2c3d292011-03-25 16:40:48 -0700244 Opt_key,
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700245 Opt_ip,
246 Opt_last_string,
247 /* string args above */
Alex Eldercffaba12012-02-15 07:43:54 -0600248 Opt_share,
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700249 Opt_noshare,
Alex Eldercffaba12012-02-15 07:43:54 -0600250 Opt_crc,
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700251 Opt_nocrc,
Yan, Zhenga3fc9802014-11-11 16:30:55 +0800252 Opt_cephx_require_signatures,
253 Opt_nocephx_require_signatures,
Ilya Dryomova51983e2015-10-28 23:52:06 +0100254 Opt_cephx_sign_messages,
255 Opt_nocephx_sign_messages,
Chaitanya Huilgolba988f82015-01-23 16:41:25 +0530256 Opt_tcp_nodelay,
257 Opt_notcp_nodelay,
Dongsheng Yang02b2f542018-12-18 04:31:48 -0500258 Opt_abort_on_full,
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700259};
260
261static match_table_t opt_tokens = {
262 {Opt_osdtimeout, "osdtimeout=%d"},
263 {Opt_osdkeepalivetimeout, "osdkeepalive=%d"},
264 {Opt_mount_timeout, "mount_timeout=%d"},
265 {Opt_osd_idle_ttl, "osd_idle_ttl=%d"},
Ilya Dryomov7cc5e382017-02-12 17:11:07 +0100266 {Opt_osd_request_timeout, "osd_request_timeout=%d"},
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700267 /* int args above */
268 {Opt_fsid, "fsid=%s"},
269 {Opt_name, "name=%s"},
270 {Opt_secret, "secret=%s"},
Tommi Virtanene2c3d292011-03-25 16:40:48 -0700271 {Opt_key, "key=%s"},
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700272 {Opt_ip, "ip=%s"},
273 /* string args above */
Alex Eldercffaba12012-02-15 07:43:54 -0600274 {Opt_share, "share"},
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700275 {Opt_noshare, "noshare"},
Alex Eldercffaba12012-02-15 07:43:54 -0600276 {Opt_crc, "crc"},
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700277 {Opt_nocrc, "nocrc"},
Yan, Zhenga3fc9802014-11-11 16:30:55 +0800278 {Opt_cephx_require_signatures, "cephx_require_signatures"},
279 {Opt_nocephx_require_signatures, "nocephx_require_signatures"},
Ilya Dryomova51983e2015-10-28 23:52:06 +0100280 {Opt_cephx_sign_messages, "cephx_sign_messages"},
281 {Opt_nocephx_sign_messages, "nocephx_sign_messages"},
Chaitanya Huilgolba988f82015-01-23 16:41:25 +0530282 {Opt_tcp_nodelay, "tcp_nodelay"},
283 {Opt_notcp_nodelay, "notcp_nodelay"},
Dongsheng Yang02b2f542018-12-18 04:31:48 -0500284 {Opt_abort_on_full, "abort_on_full"},
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700285 {-1, NULL}
286};
287
288void ceph_destroy_options(struct ceph_options *opt)
289{
290 dout("destroy_options %p\n", opt);
291 kfree(opt->name);
Tommi Virtanen8323c3a2011-03-25 16:32:57 -0700292 if (opt->key) {
293 ceph_crypto_key_destroy(opt->key);
294 kfree(opt->key);
295 }
Noah Watkins1cad7892011-09-12 14:51:53 -0700296 kfree(opt->mon_addr);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700297 kfree(opt);
298}
299EXPORT_SYMBOL(ceph_destroy_options);
300
Tommi Virtanene2c3d292011-03-25 16:40:48 -0700301/* get secret from key store */
302static int get_secret(struct ceph_crypto_key *dst, const char *name) {
303 struct key *ukey;
304 int key_err;
305 int err = 0;
Tommi Virtanen4b2a58a2011-03-28 14:59:38 -0700306 struct ceph_crypto_key *ckey;
Tommi Virtanene2c3d292011-03-25 16:40:48 -0700307
Tommi Virtanen4b2a58a2011-03-28 14:59:38 -0700308 ukey = request_key(&key_type_ceph, name, NULL);
YueHaibingbad87212018-08-07 21:02:34 +0800309 if (IS_ERR(ukey)) {
Tommi Virtanene2c3d292011-03-25 16:40:48 -0700310 /* request_key errors don't map nicely to mount(2)
311 errors; don't even try, but still printk */
312 key_err = PTR_ERR(ukey);
313 switch (key_err) {
314 case -ENOKEY:
Joe Perchesb9a67892014-09-09 21:17:29 -0700315 pr_warn("ceph: Mount failed due to key not found: %s\n",
316 name);
Tommi Virtanene2c3d292011-03-25 16:40:48 -0700317 break;
318 case -EKEYEXPIRED:
Joe Perchesb9a67892014-09-09 21:17:29 -0700319 pr_warn("ceph: Mount failed due to expired key: %s\n",
320 name);
Tommi Virtanene2c3d292011-03-25 16:40:48 -0700321 break;
322 case -EKEYREVOKED:
Joe Perchesb9a67892014-09-09 21:17:29 -0700323 pr_warn("ceph: Mount failed due to revoked key: %s\n",
324 name);
Tommi Virtanene2c3d292011-03-25 16:40:48 -0700325 break;
326 default:
Joe Perchesb9a67892014-09-09 21:17:29 -0700327 pr_warn("ceph: Mount failed due to unknown key error %d: %s\n",
328 key_err, name);
Tommi Virtanene2c3d292011-03-25 16:40:48 -0700329 }
330 err = -EPERM;
331 goto out;
332 }
333
David Howells146aa8b2015-10-21 14:04:48 +0100334 ckey = ukey->payload.data[0];
Tommi Virtanen4b2a58a2011-03-28 14:59:38 -0700335 err = ceph_crypto_key_clone(dst, ckey);
Tommi Virtanene2c3d292011-03-25 16:40:48 -0700336 if (err)
337 goto out_key;
338 /* pass through, err is 0 */
339
340out_key:
341 key_put(ukey);
342out:
343 return err;
344}
345
Alex Elderee577412012-01-24 10:08:36 -0600346struct ceph_options *
347ceph_parse_options(char *options, const char *dev_name,
348 const char *dev_name_end,
349 int (*parse_extra_token)(char *c, void *private),
350 void *private)
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700351{
352 struct ceph_options *opt;
353 const char *c;
354 int err = -ENOMEM;
355 substring_t argstr[MAX_OPT_ARGS];
356
357 opt = kzalloc(sizeof(*opt), GFP_KERNEL);
358 if (!opt)
Alex Elderee577412012-01-24 10:08:36 -0600359 return ERR_PTR(-ENOMEM);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700360 opt->mon_addr = kcalloc(CEPH_MAX_MON, sizeof(*opt->mon_addr),
361 GFP_KERNEL);
362 if (!opt->mon_addr)
363 goto out;
364
365 dout("parse_options %p options '%s' dev_name '%s'\n", opt, options,
366 dev_name);
367
368 /* start with defaults */
369 opt->flags = CEPH_OPT_DEFAULT;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700370 opt->osd_keepalive_timeout = CEPH_OSD_KEEPALIVE_DEFAULT;
Ilya Dryomova319bf52015-05-15 12:02:17 +0300371 opt->mount_timeout = CEPH_MOUNT_TIMEOUT_DEFAULT;
372 opt->osd_idle_ttl = CEPH_OSD_IDLE_TTL_DEFAULT;
Ilya Dryomov7cc5e382017-02-12 17:11:07 +0100373 opt->osd_request_timeout = CEPH_OSD_REQUEST_TIMEOUT_DEFAULT;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700374
375 /* get mon ip(s) */
376 /* ip1[:port1][,ip2[:port2]...] */
377 err = ceph_parse_ips(dev_name, dev_name_end, opt->mon_addr,
378 CEPH_MAX_MON, &opt->num_mon);
379 if (err < 0)
380 goto out;
381
382 /* parse mount options */
383 while ((c = strsep(&options, ",")) != NULL) {
Chengguang Xu17173c82018-06-27 21:05:08 +0800384 int token, intval;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700385 if (!*c)
386 continue;
387 err = -EINVAL;
388 token = match_token((char *)c, opt_tokens, argstr);
Yehuda Sadeh010e3b42010-09-30 11:58:31 -0700389 if (token < 0 && parse_extra_token) {
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700390 /* extra? */
391 err = parse_extra_token((char *)c, private);
392 if (err < 0) {
393 pr_err("bad option at '%s'\n", c);
394 goto out;
395 }
396 continue;
397 }
398 if (token < Opt_last_int) {
Chengguang Xu17173c82018-06-27 21:05:08 +0800399 err = match_int(&argstr[0], &intval);
400 if (err < 0) {
Ilya Dryomov2f56b6b2018-06-27 16:38:13 +0200401 pr_err("bad option arg (not int) at '%s'\n", c);
Chengguang Xu17173c82018-06-27 21:05:08 +0800402 goto out;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700403 }
404 dout("got int token %d val %d\n", token, intval);
405 } else if (token > Opt_last_int && token < Opt_last_string) {
406 dout("got string token %d val %s\n", token,
407 argstr[0].from);
408 } else {
409 dout("got token %d\n", token);
410 }
411 switch (token) {
412 case Opt_ip:
413 err = ceph_parse_ips(argstr[0].from,
414 argstr[0].to,
415 &opt->my_addr,
416 1, NULL);
417 if (err < 0)
418 goto out;
419 opt->flags |= CEPH_OPT_MYIP;
420 break;
421
422 case Opt_fsid:
423 err = parse_fsid(argstr[0].from, &opt->fsid);
424 if (err == 0)
425 opt->flags |= CEPH_OPT_FSID;
426 break;
427 case Opt_name:
Chengguang Xu937441f2018-02-06 08:25:55 +0800428 kfree(opt->name);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700429 opt->name = kstrndup(argstr[0].from,
430 argstr[0].to-argstr[0].from,
431 GFP_KERNEL);
Chengguang Xuaffff072018-01-26 14:54:43 +0800432 if (!opt->name) {
433 err = -ENOMEM;
434 goto out;
435 }
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700436 break;
437 case Opt_secret:
Chengguang Xu937441f2018-02-06 08:25:55 +0800438 ceph_crypto_key_destroy(opt->key);
439 kfree(opt->key);
440
Tommi Virtanen8323c3a2011-03-25 16:32:57 -0700441 opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL);
442 if (!opt->key) {
443 err = -ENOMEM;
444 goto out;
445 }
446 err = ceph_crypto_key_unarmor(opt->key, argstr[0].from);
447 if (err < 0)
448 goto out;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700449 break;
Tommi Virtanene2c3d292011-03-25 16:40:48 -0700450 case Opt_key:
Chengguang Xu937441f2018-02-06 08:25:55 +0800451 ceph_crypto_key_destroy(opt->key);
452 kfree(opt->key);
453
Tommi Virtanene2c3d292011-03-25 16:40:48 -0700454 opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL);
455 if (!opt->key) {
456 err = -ENOMEM;
457 goto out;
458 }
459 err = get_secret(opt->key, argstr[0].from);
460 if (err < 0)
461 goto out;
462 break;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700463
464 /* misc */
465 case Opt_osdtimeout:
Joe Perchesb9a67892014-09-09 21:17:29 -0700466 pr_warn("ignoring deprecated osdtimeout option\n");
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700467 break;
468 case Opt_osdkeepalivetimeout:
Ilya Dryomova319bf52015-05-15 12:02:17 +0300469 /* 0 isn't well defined right now, reject it */
470 if (intval < 1 || intval > INT_MAX / 1000) {
471 pr_err("osdkeepalive out of range\n");
472 err = -EINVAL;
473 goto out;
474 }
475 opt->osd_keepalive_timeout =
476 msecs_to_jiffies(intval * 1000);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700477 break;
478 case Opt_osd_idle_ttl:
Ilya Dryomova319bf52015-05-15 12:02:17 +0300479 /* 0 isn't well defined right now, reject it */
480 if (intval < 1 || intval > INT_MAX / 1000) {
481 pr_err("osd_idle_ttl out of range\n");
482 err = -EINVAL;
483 goto out;
484 }
485 opt->osd_idle_ttl = msecs_to_jiffies(intval * 1000);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700486 break;
487 case Opt_mount_timeout:
Ilya Dryomova319bf52015-05-15 12:02:17 +0300488 /* 0 is "wait forever" (i.e. infinite timeout) */
489 if (intval < 0 || intval > INT_MAX / 1000) {
490 pr_err("mount_timeout out of range\n");
491 err = -EINVAL;
492 goto out;
493 }
494 opt->mount_timeout = msecs_to_jiffies(intval * 1000);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700495 break;
Ilya Dryomov7cc5e382017-02-12 17:11:07 +0100496 case Opt_osd_request_timeout:
497 /* 0 is "wait forever" (i.e. infinite timeout) */
498 if (intval < 0 || intval > INT_MAX / 1000) {
499 pr_err("osd_request_timeout out of range\n");
500 err = -EINVAL;
501 goto out;
502 }
503 opt->osd_request_timeout = msecs_to_jiffies(intval * 1000);
504 break;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700505
Alex Eldercffaba12012-02-15 07:43:54 -0600506 case Opt_share:
507 opt->flags &= ~CEPH_OPT_NOSHARE;
508 break;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700509 case Opt_noshare:
510 opt->flags |= CEPH_OPT_NOSHARE;
511 break;
512
Alex Eldercffaba12012-02-15 07:43:54 -0600513 case Opt_crc:
514 opt->flags &= ~CEPH_OPT_NOCRC;
515 break;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700516 case Opt_nocrc:
517 opt->flags |= CEPH_OPT_NOCRC;
518 break;
Chaitanya Huilgolba988f82015-01-23 16:41:25 +0530519
Yan, Zhenga3fc9802014-11-11 16:30:55 +0800520 case Opt_cephx_require_signatures:
521 opt->flags &= ~CEPH_OPT_NOMSGAUTH;
522 break;
523 case Opt_nocephx_require_signatures:
524 opt->flags |= CEPH_OPT_NOMSGAUTH;
525 break;
Ilya Dryomova51983e2015-10-28 23:52:06 +0100526 case Opt_cephx_sign_messages:
527 opt->flags &= ~CEPH_OPT_NOMSGSIGN;
528 break;
529 case Opt_nocephx_sign_messages:
530 opt->flags |= CEPH_OPT_NOMSGSIGN;
531 break;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700532
Chaitanya Huilgolba988f82015-01-23 16:41:25 +0530533 case Opt_tcp_nodelay:
534 opt->flags |= CEPH_OPT_TCP_NODELAY;
535 break;
536 case Opt_notcp_nodelay:
537 opt->flags &= ~CEPH_OPT_TCP_NODELAY;
538 break;
539
Dongsheng Yang02b2f542018-12-18 04:31:48 -0500540 case Opt_abort_on_full:
541 opt->flags |= CEPH_OPT_ABORT_ON_FULL;
542 break;
543
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700544 default:
545 BUG_ON(token);
546 }
547 }
548
549 /* success */
Alex Elderee577412012-01-24 10:08:36 -0600550 return opt;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700551
552out:
553 ceph_destroy_options(opt);
Alex Elderee577412012-01-24 10:08:36 -0600554 return ERR_PTR(err);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700555}
556EXPORT_SYMBOL(ceph_parse_options);
557
Dongsheng Yang02b2f542018-12-18 04:31:48 -0500558int ceph_print_client_options(struct seq_file *m, struct ceph_client *client,
559 bool show_all)
Ilya Dryomovff40f9a2015-03-25 21:02:16 +0300560{
561 struct ceph_options *opt = client->options;
562 size_t pos = m->count;
563
Kees Cooka068acf2015-09-04 15:44:57 -0700564 if (opt->name) {
565 seq_puts(m, "name=");
566 seq_escape(m, opt->name, ", \t\n\\");
567 seq_putc(m, ',');
568 }
Ilya Dryomovff40f9a2015-03-25 21:02:16 +0300569 if (opt->key)
570 seq_puts(m, "secret=<hidden>,");
571
572 if (opt->flags & CEPH_OPT_FSID)
573 seq_printf(m, "fsid=%pU,", &opt->fsid);
574 if (opt->flags & CEPH_OPT_NOSHARE)
575 seq_puts(m, "noshare,");
576 if (opt->flags & CEPH_OPT_NOCRC)
577 seq_puts(m, "nocrc,");
578 if (opt->flags & CEPH_OPT_NOMSGAUTH)
579 seq_puts(m, "nocephx_require_signatures,");
Ilya Dryomova51983e2015-10-28 23:52:06 +0100580 if (opt->flags & CEPH_OPT_NOMSGSIGN)
581 seq_puts(m, "nocephx_sign_messages,");
Ilya Dryomovff40f9a2015-03-25 21:02:16 +0300582 if ((opt->flags & CEPH_OPT_TCP_NODELAY) == 0)
583 seq_puts(m, "notcp_nodelay,");
Dongsheng Yang02b2f542018-12-18 04:31:48 -0500584 if (show_all && (opt->flags & CEPH_OPT_ABORT_ON_FULL))
585 seq_puts(m, "abort_on_full,");
Ilya Dryomovff40f9a2015-03-25 21:02:16 +0300586
587 if (opt->mount_timeout != CEPH_MOUNT_TIMEOUT_DEFAULT)
Ilya Dryomova319bf52015-05-15 12:02:17 +0300588 seq_printf(m, "mount_timeout=%d,",
589 jiffies_to_msecs(opt->mount_timeout) / 1000);
Ilya Dryomovff40f9a2015-03-25 21:02:16 +0300590 if (opt->osd_idle_ttl != CEPH_OSD_IDLE_TTL_DEFAULT)
Ilya Dryomova319bf52015-05-15 12:02:17 +0300591 seq_printf(m, "osd_idle_ttl=%d,",
592 jiffies_to_msecs(opt->osd_idle_ttl) / 1000);
Ilya Dryomovff40f9a2015-03-25 21:02:16 +0300593 if (opt->osd_keepalive_timeout != CEPH_OSD_KEEPALIVE_DEFAULT)
594 seq_printf(m, "osdkeepalivetimeout=%d,",
Ilya Dryomova319bf52015-05-15 12:02:17 +0300595 jiffies_to_msecs(opt->osd_keepalive_timeout) / 1000);
Ilya Dryomov7cc5e382017-02-12 17:11:07 +0100596 if (opt->osd_request_timeout != CEPH_OSD_REQUEST_TIMEOUT_DEFAULT)
597 seq_printf(m, "osd_request_timeout=%d,",
598 jiffies_to_msecs(opt->osd_request_timeout) / 1000);
Ilya Dryomovff40f9a2015-03-25 21:02:16 +0300599
600 /* drop redundant comma */
601 if (m->count != pos)
602 m->count--;
603
604 return 0;
605}
606EXPORT_SYMBOL(ceph_print_client_options);
607
Ilya Dryomov005a07bf2016-08-18 18:38:43 +0200608struct ceph_entity_addr *ceph_client_addr(struct ceph_client *client)
609{
610 return &client->msgr.inst.addr;
611}
612EXPORT_SYMBOL(ceph_client_addr);
613
Ilya Dryomov033268a2016-08-12 14:59:58 +0200614u64 ceph_client_gid(struct ceph_client *client)
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700615{
616 return client->monc.auth->global_id;
617}
Ilya Dryomov033268a2016-08-12 14:59:58 +0200618EXPORT_SYMBOL(ceph_client_gid);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700619
620/*
621 * create a fresh client instance
622 */
Ilya Dryomov74da4a0f2017-03-03 18:16:07 +0100623struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private)
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700624{
625 struct ceph_client *client;
Sage Weil6ab00d42011-08-09 09:41:59 -0700626 struct ceph_entity_addr *myaddr = NULL;
Jason A. Donenfeldae5b806a2017-06-07 22:44:54 -0400627 int err;
628
629 err = wait_for_random_bytes();
630 if (err < 0)
631 return ERR_PTR(err);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700632
633 client = kzalloc(sizeof(*client), GFP_KERNEL);
634 if (client == NULL)
635 return ERR_PTR(-ENOMEM);
636
637 client->private = private;
638 client->options = opt;
639
640 mutex_init(&client->mount_mutex);
641 init_waitqueue_head(&client->auth_wq);
642 client->auth_err = 0;
643
644 client->extra_mon_dispatch = NULL;
Ilya Dryomov74da4a0f2017-03-03 18:16:07 +0100645 client->supported_features = CEPH_FEATURES_SUPPORTED_DEFAULT;
646 client->required_features = CEPH_FEATURES_REQUIRED_DEFAULT;
647
648 if (!ceph_test_opt(client, NOMSGAUTH))
649 client->required_features |= CEPH_FEATURE_MSG_AUTH;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700650
Sage Weil6ab00d42011-08-09 09:41:59 -0700651 /* msgr */
652 if (ceph_test_opt(client, MYIP))
653 myaddr = &client->options->my_addr;
Chaitanya Huilgolba988f82015-01-23 16:41:25 +0530654
Ilya Dryomov859bff52015-10-28 23:50:58 +0100655 ceph_messenger_init(&client->msgr, myaddr);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700656
657 /* subsystems */
658 err = ceph_monc_init(&client->monc, client);
659 if (err < 0)
Alex Elder15d98822012-05-26 23:26:43 -0500660 goto fail;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700661 err = ceph_osdc_init(&client->osdc, client);
662 if (err < 0)
663 goto fail_monc;
664
665 return client;
666
667fail_monc:
668 ceph_monc_stop(&client->monc);
669fail:
Ilya Dryomov757856d2015-06-25 17:47:45 +0300670 ceph_messenger_fini(&client->msgr);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700671 kfree(client);
672 return ERR_PTR(err);
673}
674EXPORT_SYMBOL(ceph_create_client);
675
676void ceph_destroy_client(struct ceph_client *client)
677{
678 dout("destroy_client %p\n", client);
679
Guanjun Hea2a32582012-07-08 19:50:33 -0700680 atomic_set(&client->msgr.stopping, 1);
681
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700682 /* unmount */
683 ceph_osdc_stop(&client->osdc);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700684 ceph_monc_stop(&client->monc);
Ilya Dryomov757856d2015-06-25 17:47:45 +0300685 ceph_messenger_fini(&client->msgr);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700686
687 ceph_debugfs_client_cleanup(client);
688
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700689 ceph_destroy_options(client->options);
690
691 kfree(client);
692 dout("destroy_client %p done\n", client);
693}
694EXPORT_SYMBOL(ceph_destroy_client);
695
696/*
697 * true if we have the mon map (and have thus joined the cluster)
698 */
Zhang Zhuoyu3b33f692016-03-25 05:18:39 -0400699static bool have_mon_and_osd_map(struct ceph_client *client)
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700700{
701 return client->monc.monmap && client->monc.monmap->epoch &&
702 client->osdc.osdmap && client->osdc.osdmap->epoch;
703}
704
705/*
706 * mount: join the ceph cluster, and open root directory.
707 */
708int __ceph_open_session(struct ceph_client *client, unsigned long started)
709{
Ilya Dryomova319bf52015-05-15 12:02:17 +0300710 unsigned long timeout = client->options->mount_timeout;
Ilya Dryomov216639d2015-05-19 12:03:33 +0300711 long err;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700712
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700713 /* open session, and wait for mon and osd maps */
714 err = ceph_monc_open_session(&client->monc);
715 if (err < 0)
716 return err;
717
718 while (!have_mon_and_osd_map(client)) {
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700719 if (timeout && time_after_eq(jiffies, started + timeout))
Ilya Dryomov216639d2015-05-19 12:03:33 +0300720 return -ETIMEDOUT;
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700721
722 /* wait */
723 dout("mount waiting for mon_map\n");
724 err = wait_event_interruptible_timeout(client->auth_wq,
725 have_mon_and_osd_map(client) || (client->auth_err < 0),
Ilya Dryomova319bf52015-05-15 12:02:17 +0300726 ceph_timeout_jiffies(timeout));
Ilya Dryomov216639d2015-05-19 12:03:33 +0300727 if (err < 0)
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700728 return err;
729 if (client->auth_err < 0)
730 return client->auth_err;
731 }
732
Ilya Dryomov033268a2016-08-12 14:59:58 +0200733 pr_info("client%llu fsid %pU\n", ceph_client_gid(client),
734 &client->fsid);
Ilya Dryomov02ac9562016-01-06 12:56:21 +0300735 ceph_debugfs_client_init(client);
736
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700737 return 0;
738}
739EXPORT_SYMBOL(__ceph_open_session);
740
741
742int 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}
755EXPORT_SYMBOL(ceph_open_session);
756
757
758static int __init init_ceph_lib(void)
759{
760 int ret = 0;
761
762 ret = ceph_debugfs_init();
763 if (ret < 0)
764 goto out;
765
Tommi Virtanen4b2a58a2011-03-28 14:59:38 -0700766 ret = ceph_crypto_init();
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700767 if (ret < 0)
768 goto out_debugfs;
769
Tommi Virtanen4b2a58a2011-03-28 14:59:38 -0700770 ret = ceph_msgr_init();
771 if (ret < 0)
772 goto out_crypto;
773
Alex Elder5522ae02013-05-01 12:43:04 -0500774 ret = ceph_osdc_setup();
775 if (ret < 0)
776 goto out_msgr;
777
Sage Weil4f6a7e52013-02-23 10:41:09 -0800778 pr_info("loaded (mon/osd proto %d/%d)\n",
779 CEPH_MONC_PROTOCOL, CEPH_OSDC_PROTOCOL);
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700780
781 return 0;
782
Alex Elder5522ae02013-05-01 12:43:04 -0500783out_msgr:
784 ceph_msgr_exit();
Tommi Virtanen4b2a58a2011-03-28 14:59:38 -0700785out_crypto:
786 ceph_crypto_shutdown();
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700787out_debugfs:
788 ceph_debugfs_cleanup();
789out:
790 return ret;
791}
792
793static void __exit exit_ceph_lib(void)
794{
795 dout("exit_ceph_lib\n");
Yan, Zheng51e92732016-02-05 15:36:22 +0800796 WARN_ON(!ceph_strings_empty());
797
Alex Elder5522ae02013-05-01 12:43:04 -0500798 ceph_osdc_cleanup();
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700799 ceph_msgr_exit();
Tommi Virtanen4b2a58a2011-03-28 14:59:38 -0700800 ceph_crypto_shutdown();
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700801 ceph_debugfs_cleanup();
802}
803
804module_init(init_ceph_lib);
805module_exit(exit_ceph_lib);
806
807MODULE_AUTHOR("Sage Weil <sage@newdream.net>");
808MODULE_AUTHOR("Yehuda Sadeh <yehuda@hq.newdream.net>");
809MODULE_AUTHOR("Patience Warnick <patience@newdream.net>");
Hong Zhiguo6c13a6b2015-06-10 21:13:25 +0800810MODULE_DESCRIPTION("Ceph core library");
Yehuda Sadeh3d14c5d2010-04-06 15:14:15 -0700811MODULE_LICENSE("GPL");