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e7fd4179 DT |
1 | /****************************************************************************** |
2 | ******************************************************************************* | |
3 | ** | |
4 | ** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
dbcfc347 | 5 | ** Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved. |
e7fd4179 DT |
6 | ** |
7 | ** This copyrighted material is made available to anyone wishing to use, | |
8 | ** modify, copy, or redistribute it subject to the terms and conditions | |
9 | ** of the GNU General Public License v.2. | |
10 | ** | |
11 | ******************************************************************************* | |
12 | ******************************************************************************/ | |
13 | ||
14 | #include "dlm_internal.h" | |
15 | #include "lockspace.h" | |
16 | #include "member.h" | |
17 | #include "lowcomms.h" | |
18 | #include "midcomms.h" | |
19 | #include "rcom.h" | |
20 | #include "recover.h" | |
21 | #include "dir.h" | |
22 | #include "config.h" | |
23 | #include "memory.h" | |
24 | #include "lock.h" | |
25 | #include "util.h" | |
26 | ||
27 | ||
28 | static int rcom_response(struct dlm_ls *ls) | |
29 | { | |
30 | return test_bit(LSFL_RCOM_READY, &ls->ls_flags); | |
31 | } | |
32 | ||
33 | static int create_rcom(struct dlm_ls *ls, int to_nodeid, int type, int len, | |
34 | struct dlm_rcom **rc_ret, struct dlm_mhandle **mh_ret) | |
35 | { | |
36 | struct dlm_rcom *rc; | |
37 | struct dlm_mhandle *mh; | |
38 | char *mb; | |
39 | int mb_len = sizeof(struct dlm_rcom) + len; | |
40 | ||
44f487a5 | 41 | mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, ls->ls_allocation, &mb); |
e7fd4179 DT |
42 | if (!mh) { |
43 | log_print("create_rcom to %d type %d len %d ENOBUFS", | |
44 | to_nodeid, type, len); | |
45 | return -ENOBUFS; | |
46 | } | |
47 | memset(mb, 0, mb_len); | |
48 | ||
49 | rc = (struct dlm_rcom *) mb; | |
50 | ||
51 | rc->rc_header.h_version = (DLM_HEADER_MAJOR | DLM_HEADER_MINOR); | |
52 | rc->rc_header.h_lockspace = ls->ls_global_id; | |
53 | rc->rc_header.h_nodeid = dlm_our_nodeid(); | |
54 | rc->rc_header.h_length = mb_len; | |
55 | rc->rc_header.h_cmd = DLM_RCOM; | |
56 | ||
57 | rc->rc_type = type; | |
58 | ||
38aa8b0c DT |
59 | spin_lock(&ls->ls_recover_lock); |
60 | rc->rc_seq = ls->ls_recover_seq; | |
61 | spin_unlock(&ls->ls_recover_lock); | |
62 | ||
e7fd4179 DT |
63 | *mh_ret = mh; |
64 | *rc_ret = rc; | |
65 | return 0; | |
66 | } | |
67 | ||
68 | static void send_rcom(struct dlm_ls *ls, struct dlm_mhandle *mh, | |
69 | struct dlm_rcom *rc) | |
70 | { | |
71 | dlm_rcom_out(rc); | |
72 | dlm_lowcomms_commit_buffer(mh); | |
73 | } | |
74 | ||
75 | /* When replying to a status request, a node also sends back its | |
76 | configuration values. The requesting node then checks that the remote | |
77 | node is configured the same way as itself. */ | |
78 | ||
79 | static void make_config(struct dlm_ls *ls, struct rcom_config *rf) | |
80 | { | |
93ff2971 AV |
81 | rf->rf_lvblen = cpu_to_le32(ls->ls_lvblen); |
82 | rf->rf_lsflags = cpu_to_le32(ls->ls_exflags); | |
e7fd4179 DT |
83 | } |
84 | ||
9e971b71 | 85 | static int check_config(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid) |
e7fd4179 | 86 | { |
9e971b71 | 87 | struct rcom_config *rf = (struct rcom_config *) rc->rc_buf; |
02ed16b6 | 88 | size_t conf_size = sizeof(struct dlm_rcom) + sizeof(struct rcom_config); |
9e971b71 DT |
89 | |
90 | if ((rc->rc_header.h_version & 0xFFFF0000) != DLM_HEADER_MAJOR) { | |
91 | log_error(ls, "version mismatch: %x nodeid %d: %x", | |
92 | DLM_HEADER_MAJOR | DLM_HEADER_MINOR, nodeid, | |
93 | rc->rc_header.h_version); | |
8b0e7b2c | 94 | return -EPROTO; |
9e971b71 DT |
95 | } |
96 | ||
02ed16b6 AV |
97 | if (rc->rc_header.h_length < conf_size) { |
98 | log_error(ls, "config too short: %d nodeid %d", | |
99 | rc->rc_header.h_length, nodeid); | |
100 | return -EPROTO; | |
101 | } | |
102 | ||
93ff2971 AV |
103 | if (le32_to_cpu(rf->rf_lvblen) != ls->ls_lvblen || |
104 | le32_to_cpu(rf->rf_lsflags) != ls->ls_exflags) { | |
e7fd4179 | 105 | log_error(ls, "config mismatch: %d,%x nodeid %d: %d,%x", |
93ff2971 AV |
106 | ls->ls_lvblen, ls->ls_exflags, nodeid, |
107 | le32_to_cpu(rf->rf_lvblen), | |
108 | le32_to_cpu(rf->rf_lsflags)); | |
8b0e7b2c | 109 | return -EPROTO; |
e7fd4179 DT |
110 | } |
111 | return 0; | |
112 | } | |
113 | ||
98f176fb DT |
114 | static void allow_sync_reply(struct dlm_ls *ls, uint64_t *new_seq) |
115 | { | |
116 | spin_lock(&ls->ls_rcom_spin); | |
117 | *new_seq = ++ls->ls_rcom_seq; | |
118 | set_bit(LSFL_RCOM_WAIT, &ls->ls_flags); | |
119 | spin_unlock(&ls->ls_rcom_spin); | |
120 | } | |
121 | ||
122 | static void disallow_sync_reply(struct dlm_ls *ls) | |
123 | { | |
124 | spin_lock(&ls->ls_rcom_spin); | |
125 | clear_bit(LSFL_RCOM_WAIT, &ls->ls_flags); | |
126 | clear_bit(LSFL_RCOM_READY, &ls->ls_flags); | |
127 | spin_unlock(&ls->ls_rcom_spin); | |
128 | } | |
129 | ||
e7fd4179 DT |
130 | int dlm_rcom_status(struct dlm_ls *ls, int nodeid) |
131 | { | |
132 | struct dlm_rcom *rc; | |
133 | struct dlm_mhandle *mh; | |
134 | int error = 0; | |
135 | ||
faa0f267 | 136 | ls->ls_recover_nodeid = nodeid; |
e7fd4179 DT |
137 | |
138 | if (nodeid == dlm_our_nodeid()) { | |
4007685c | 139 | rc = ls->ls_recover_buf; |
e7fd4179 DT |
140 | rc->rc_result = dlm_recover_status(ls); |
141 | goto out; | |
142 | } | |
143 | ||
144 | error = create_rcom(ls, nodeid, DLM_RCOM_STATUS, 0, &rc, &mh); | |
145 | if (error) | |
146 | goto out; | |
98f176fb DT |
147 | |
148 | allow_sync_reply(ls, &rc->rc_id); | |
68c817a1 | 149 | memset(ls->ls_recover_buf, 0, dlm_config.ci_buffer_size); |
e7fd4179 DT |
150 | |
151 | send_rcom(ls, mh, rc); | |
152 | ||
153 | error = dlm_wait_function(ls, &rcom_response); | |
98f176fb | 154 | disallow_sync_reply(ls); |
e7fd4179 DT |
155 | if (error) |
156 | goto out; | |
157 | ||
4007685c | 158 | rc = ls->ls_recover_buf; |
e7fd4179 DT |
159 | |
160 | if (rc->rc_result == -ESRCH) { | |
161 | /* we pretend the remote lockspace exists with 0 status */ | |
162 | log_debug(ls, "remote node %d not ready", nodeid); | |
163 | rc->rc_result = 0; | |
164 | } else | |
9e971b71 | 165 | error = check_config(ls, rc, nodeid); |
e7fd4179 DT |
166 | /* the caller looks at rc_result for the remote recovery status */ |
167 | out: | |
168 | return error; | |
169 | } | |
170 | ||
171 | static void receive_rcom_status(struct dlm_ls *ls, struct dlm_rcom *rc_in) | |
172 | { | |
173 | struct dlm_rcom *rc; | |
174 | struct dlm_mhandle *mh; | |
175 | int error, nodeid = rc_in->rc_header.h_nodeid; | |
176 | ||
177 | error = create_rcom(ls, nodeid, DLM_RCOM_STATUS_REPLY, | |
178 | sizeof(struct rcom_config), &rc, &mh); | |
179 | if (error) | |
180 | return; | |
4a99c3d9 | 181 | rc->rc_id = rc_in->rc_id; |
38aa8b0c | 182 | rc->rc_seq_reply = rc_in->rc_seq; |
e7fd4179 DT |
183 | rc->rc_result = dlm_recover_status(ls); |
184 | make_config(ls, (struct rcom_config *) rc->rc_buf); | |
185 | ||
186 | send_rcom(ls, mh, rc); | |
187 | } | |
188 | ||
4a99c3d9 | 189 | static void receive_sync_reply(struct dlm_ls *ls, struct dlm_rcom *rc_in) |
e7fd4179 | 190 | { |
98f176fb DT |
191 | spin_lock(&ls->ls_rcom_spin); |
192 | if (!test_bit(LSFL_RCOM_WAIT, &ls->ls_flags) || | |
193 | rc_in->rc_id != ls->ls_rcom_seq) { | |
194 | log_debug(ls, "reject reply %d from %d seq %llx expect %llx", | |
195 | rc_in->rc_type, rc_in->rc_header.h_nodeid, | |
57adf7ee RK |
196 | (unsigned long long)rc_in->rc_id, |
197 | (unsigned long long)ls->ls_rcom_seq); | |
98f176fb | 198 | goto out; |
4a99c3d9 | 199 | } |
e7fd4179 DT |
200 | memcpy(ls->ls_recover_buf, rc_in, rc_in->rc_header.h_length); |
201 | set_bit(LSFL_RCOM_READY, &ls->ls_flags); | |
98f176fb | 202 | clear_bit(LSFL_RCOM_WAIT, &ls->ls_flags); |
e7fd4179 | 203 | wake_up(&ls->ls_wait_general); |
98f176fb DT |
204 | out: |
205 | spin_unlock(&ls->ls_rcom_spin); | |
e7fd4179 DT |
206 | } |
207 | ||
208 | int dlm_rcom_names(struct dlm_ls *ls, int nodeid, char *last_name, int last_len) | |
209 | { | |
210 | struct dlm_rcom *rc; | |
211 | struct dlm_mhandle *mh; | |
4007685c AV |
212 | int error = 0; |
213 | int max_size = dlm_config.ci_buffer_size - sizeof(struct dlm_rcom); | |
e7fd4179 | 214 | |
faa0f267 | 215 | ls->ls_recover_nodeid = nodeid; |
e7fd4179 DT |
216 | |
217 | if (nodeid == dlm_our_nodeid()) { | |
218 | dlm_copy_master_names(ls, last_name, last_len, | |
4007685c AV |
219 | ls->ls_recover_buf->rc_buf, |
220 | max_size, nodeid); | |
e7fd4179 DT |
221 | goto out; |
222 | } | |
223 | ||
224 | error = create_rcom(ls, nodeid, DLM_RCOM_NAMES, last_len, &rc, &mh); | |
225 | if (error) | |
226 | goto out; | |
227 | memcpy(rc->rc_buf, last_name, last_len); | |
98f176fb DT |
228 | |
229 | allow_sync_reply(ls, &rc->rc_id); | |
68c817a1 | 230 | memset(ls->ls_recover_buf, 0, dlm_config.ci_buffer_size); |
e7fd4179 DT |
231 | |
232 | send_rcom(ls, mh, rc); | |
233 | ||
234 | error = dlm_wait_function(ls, &rcom_response); | |
98f176fb | 235 | disallow_sync_reply(ls); |
e7fd4179 DT |
236 | out: |
237 | return error; | |
238 | } | |
239 | ||
240 | static void receive_rcom_names(struct dlm_ls *ls, struct dlm_rcom *rc_in) | |
241 | { | |
242 | struct dlm_rcom *rc; | |
243 | struct dlm_mhandle *mh; | |
38aa8b0c | 244 | int error, inlen, outlen, nodeid; |
e7fd4179 DT |
245 | |
246 | nodeid = rc_in->rc_header.h_nodeid; | |
247 | inlen = rc_in->rc_header.h_length - sizeof(struct dlm_rcom); | |
68c817a1 | 248 | outlen = dlm_config.ci_buffer_size - sizeof(struct dlm_rcom); |
e7fd4179 DT |
249 | |
250 | error = create_rcom(ls, nodeid, DLM_RCOM_NAMES_REPLY, outlen, &rc, &mh); | |
251 | if (error) | |
252 | return; | |
4a99c3d9 | 253 | rc->rc_id = rc_in->rc_id; |
38aa8b0c | 254 | rc->rc_seq_reply = rc_in->rc_seq; |
e7fd4179 DT |
255 | |
256 | dlm_copy_master_names(ls, rc_in->rc_buf, inlen, rc->rc_buf, outlen, | |
257 | nodeid); | |
258 | send_rcom(ls, mh, rc); | |
259 | } | |
260 | ||
e7fd4179 DT |
261 | int dlm_send_rcom_lookup(struct dlm_rsb *r, int dir_nodeid) |
262 | { | |
263 | struct dlm_rcom *rc; | |
264 | struct dlm_mhandle *mh; | |
265 | struct dlm_ls *ls = r->res_ls; | |
266 | int error; | |
267 | ||
268 | error = create_rcom(ls, dir_nodeid, DLM_RCOM_LOOKUP, r->res_length, | |
269 | &rc, &mh); | |
270 | if (error) | |
271 | goto out; | |
272 | memcpy(rc->rc_buf, r->res_name, r->res_length); | |
273 | rc->rc_id = (unsigned long) r; | |
274 | ||
275 | send_rcom(ls, mh, rc); | |
276 | out: | |
277 | return error; | |
278 | } | |
279 | ||
280 | static void receive_rcom_lookup(struct dlm_ls *ls, struct dlm_rcom *rc_in) | |
281 | { | |
282 | struct dlm_rcom *rc; | |
283 | struct dlm_mhandle *mh; | |
284 | int error, ret_nodeid, nodeid = rc_in->rc_header.h_nodeid; | |
285 | int len = rc_in->rc_header.h_length - sizeof(struct dlm_rcom); | |
286 | ||
287 | error = create_rcom(ls, nodeid, DLM_RCOM_LOOKUP_REPLY, 0, &rc, &mh); | |
288 | if (error) | |
289 | return; | |
290 | ||
291 | error = dlm_dir_lookup(ls, nodeid, rc_in->rc_buf, len, &ret_nodeid); | |
292 | if (error) | |
293 | ret_nodeid = error; | |
294 | rc->rc_result = ret_nodeid; | |
295 | rc->rc_id = rc_in->rc_id; | |
38aa8b0c | 296 | rc->rc_seq_reply = rc_in->rc_seq; |
e7fd4179 DT |
297 | |
298 | send_rcom(ls, mh, rc); | |
299 | } | |
300 | ||
301 | static void receive_rcom_lookup_reply(struct dlm_ls *ls, struct dlm_rcom *rc_in) | |
302 | { | |
303 | dlm_recover_master_reply(ls, rc_in); | |
304 | } | |
305 | ||
306 | static void pack_rcom_lock(struct dlm_rsb *r, struct dlm_lkb *lkb, | |
307 | struct rcom_lock *rl) | |
308 | { | |
309 | memset(rl, 0, sizeof(*rl)); | |
310 | ||
163a1859 AV |
311 | rl->rl_ownpid = cpu_to_le32(lkb->lkb_ownpid); |
312 | rl->rl_lkid = cpu_to_le32(lkb->lkb_id); | |
313 | rl->rl_exflags = cpu_to_le32(lkb->lkb_exflags); | |
314 | rl->rl_flags = cpu_to_le32(lkb->lkb_flags); | |
315 | rl->rl_lvbseq = cpu_to_le32(lkb->lkb_lvbseq); | |
e7fd4179 DT |
316 | rl->rl_rqmode = lkb->lkb_rqmode; |
317 | rl->rl_grmode = lkb->lkb_grmode; | |
318 | rl->rl_status = lkb->lkb_status; | |
163a1859 | 319 | rl->rl_wait_type = cpu_to_le16(lkb->lkb_wait_type); |
e7fd4179 DT |
320 | |
321 | if (lkb->lkb_bastaddr) | |
322 | rl->rl_asts |= AST_BAST; | |
323 | if (lkb->lkb_astaddr) | |
324 | rl->rl_asts |= AST_COMP; | |
325 | ||
163a1859 | 326 | rl->rl_namelen = cpu_to_le16(r->res_length); |
e7fd4179 DT |
327 | memcpy(rl->rl_name, r->res_name, r->res_length); |
328 | ||
329 | /* FIXME: might we have an lvb without DLM_LKF_VALBLK set ? | |
330 | If so, receive_rcom_lock_args() won't take this copy. */ | |
331 | ||
332 | if (lkb->lkb_lvbptr) | |
333 | memcpy(rl->rl_lvb, lkb->lkb_lvbptr, r->res_ls->ls_lvblen); | |
334 | } | |
335 | ||
336 | int dlm_send_rcom_lock(struct dlm_rsb *r, struct dlm_lkb *lkb) | |
337 | { | |
338 | struct dlm_ls *ls = r->res_ls; | |
339 | struct dlm_rcom *rc; | |
340 | struct dlm_mhandle *mh; | |
341 | struct rcom_lock *rl; | |
342 | int error, len = sizeof(struct rcom_lock); | |
343 | ||
344 | if (lkb->lkb_lvbptr) | |
345 | len += ls->ls_lvblen; | |
346 | ||
347 | error = create_rcom(ls, r->res_nodeid, DLM_RCOM_LOCK, len, &rc, &mh); | |
348 | if (error) | |
349 | goto out; | |
350 | ||
351 | rl = (struct rcom_lock *) rc->rc_buf; | |
352 | pack_rcom_lock(r, lkb, rl); | |
353 | rc->rc_id = (unsigned long) r; | |
354 | ||
355 | send_rcom(ls, mh, rc); | |
356 | out: | |
357 | return error; | |
358 | } | |
359 | ||
ae773d0b | 360 | /* needs at least dlm_rcom + rcom_lock */ |
e7fd4179 DT |
361 | static void receive_rcom_lock(struct dlm_ls *ls, struct dlm_rcom *rc_in) |
362 | { | |
363 | struct dlm_rcom *rc; | |
364 | struct dlm_mhandle *mh; | |
365 | int error, nodeid = rc_in->rc_header.h_nodeid; | |
366 | ||
367 | dlm_recover_master_copy(ls, rc_in); | |
368 | ||
369 | error = create_rcom(ls, nodeid, DLM_RCOM_LOCK_REPLY, | |
370 | sizeof(struct rcom_lock), &rc, &mh); | |
371 | if (error) | |
372 | return; | |
373 | ||
374 | /* We send back the same rcom_lock struct we received, but | |
375 | dlm_recover_master_copy() has filled in rl_remid and rl_result */ | |
376 | ||
377 | memcpy(rc->rc_buf, rc_in->rc_buf, sizeof(struct rcom_lock)); | |
378 | rc->rc_id = rc_in->rc_id; | |
38aa8b0c | 379 | rc->rc_seq_reply = rc_in->rc_seq; |
e7fd4179 DT |
380 | |
381 | send_rcom(ls, mh, rc); | |
382 | } | |
383 | ||
c36258b5 DT |
384 | /* If the lockspace doesn't exist then still send a status message |
385 | back; it's possible that it just doesn't have its global_id yet. */ | |
386 | ||
387 | int dlm_send_ls_not_ready(int nodeid, struct dlm_rcom *rc_in) | |
e7fd4179 DT |
388 | { |
389 | struct dlm_rcom *rc; | |
1babdb45 | 390 | struct rcom_config *rf; |
e7fd4179 DT |
391 | struct dlm_mhandle *mh; |
392 | char *mb; | |
1babdb45 | 393 | int mb_len = sizeof(struct dlm_rcom) + sizeof(struct rcom_config); |
e7fd4179 | 394 | |
41684f95 | 395 | mh = dlm_lowcomms_get_buffer(nodeid, mb_len, GFP_NOFS, &mb); |
e7fd4179 DT |
396 | if (!mh) |
397 | return -ENOBUFS; | |
398 | memset(mb, 0, mb_len); | |
399 | ||
400 | rc = (struct dlm_rcom *) mb; | |
401 | ||
402 | rc->rc_header.h_version = (DLM_HEADER_MAJOR | DLM_HEADER_MINOR); | |
403 | rc->rc_header.h_lockspace = rc_in->rc_header.h_lockspace; | |
404 | rc->rc_header.h_nodeid = dlm_our_nodeid(); | |
405 | rc->rc_header.h_length = mb_len; | |
406 | rc->rc_header.h_cmd = DLM_RCOM; | |
407 | ||
408 | rc->rc_type = DLM_RCOM_STATUS_REPLY; | |
f5888750 | 409 | rc->rc_id = rc_in->rc_id; |
38aa8b0c | 410 | rc->rc_seq_reply = rc_in->rc_seq; |
e7fd4179 DT |
411 | rc->rc_result = -ESRCH; |
412 | ||
1babdb45 | 413 | rf = (struct rcom_config *) rc->rc_buf; |
93ff2971 | 414 | rf->rf_lvblen = cpu_to_le32(~0U); |
1babdb45 | 415 | |
e7fd4179 DT |
416 | dlm_rcom_out(rc); |
417 | dlm_lowcomms_commit_buffer(mh); | |
418 | ||
419 | return 0; | |
420 | } | |
421 | ||
38aa8b0c DT |
422 | static int is_old_reply(struct dlm_ls *ls, struct dlm_rcom *rc) |
423 | { | |
424 | uint64_t seq; | |
425 | int rv = 0; | |
426 | ||
427 | switch (rc->rc_type) { | |
428 | case DLM_RCOM_STATUS_REPLY: | |
429 | case DLM_RCOM_NAMES_REPLY: | |
430 | case DLM_RCOM_LOOKUP_REPLY: | |
431 | case DLM_RCOM_LOCK_REPLY: | |
432 | spin_lock(&ls->ls_recover_lock); | |
433 | seq = ls->ls_recover_seq; | |
434 | spin_unlock(&ls->ls_recover_lock); | |
435 | if (rc->rc_seq_reply != seq) { | |
8ec68867 | 436 | log_debug(ls, "ignoring old reply %x from %d " |
38aa8b0c DT |
437 | "seq_reply %llx expect %llx", |
438 | rc->rc_type, rc->rc_header.h_nodeid, | |
439 | (unsigned long long)rc->rc_seq_reply, | |
440 | (unsigned long long)seq); | |
441 | rv = 1; | |
442 | } | |
443 | } | |
444 | return rv; | |
445 | } | |
446 | ||
c36258b5 | 447 | /* Called by dlm_recv; corresponds to dlm_receive_message() but special |
e7fd4179 DT |
448 | recovery-only comms are sent through here. */ |
449 | ||
c36258b5 | 450 | void dlm_receive_rcom(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid) |
e7fd4179 | 451 | { |
ae773d0b AV |
452 | int lock_size = sizeof(struct dlm_rcom) + sizeof(struct rcom_lock); |
453 | ||
e7fd4179 | 454 | if (dlm_recovery_stopped(ls) && (rc->rc_type != DLM_RCOM_STATUS)) { |
8ec68867 | 455 | log_debug(ls, "ignoring recovery message %x from %d", |
e7fd4179 DT |
456 | rc->rc_type, nodeid); |
457 | goto out; | |
458 | } | |
459 | ||
38aa8b0c DT |
460 | if (is_old_reply(ls, rc)) |
461 | goto out; | |
462 | ||
e7fd4179 DT |
463 | switch (rc->rc_type) { |
464 | case DLM_RCOM_STATUS: | |
465 | receive_rcom_status(ls, rc); | |
466 | break; | |
467 | ||
468 | case DLM_RCOM_NAMES: | |
469 | receive_rcom_names(ls, rc); | |
470 | break; | |
471 | ||
472 | case DLM_RCOM_LOOKUP: | |
473 | receive_rcom_lookup(ls, rc); | |
474 | break; | |
475 | ||
476 | case DLM_RCOM_LOCK: | |
ae773d0b AV |
477 | if (rc->rc_header.h_length < lock_size) |
478 | goto Eshort; | |
e7fd4179 DT |
479 | receive_rcom_lock(ls, rc); |
480 | break; | |
481 | ||
482 | case DLM_RCOM_STATUS_REPLY: | |
dbcfc347 | 483 | receive_sync_reply(ls, rc); |
e7fd4179 DT |
484 | break; |
485 | ||
486 | case DLM_RCOM_NAMES_REPLY: | |
dbcfc347 | 487 | receive_sync_reply(ls, rc); |
e7fd4179 DT |
488 | break; |
489 | ||
490 | case DLM_RCOM_LOOKUP_REPLY: | |
491 | receive_rcom_lookup_reply(ls, rc); | |
492 | break; | |
493 | ||
494 | case DLM_RCOM_LOCK_REPLY: | |
ae773d0b AV |
495 | if (rc->rc_header.h_length < lock_size) |
496 | goto Eshort; | |
dbcfc347 | 497 | dlm_recover_process_copy(ls, rc); |
e7fd4179 DT |
498 | break; |
499 | ||
500 | default: | |
dbcfc347 | 501 | log_error(ls, "receive_rcom bad type %d", rc->rc_type); |
e7fd4179 | 502 | } |
ae773d0b | 503 | out: |
c36258b5 | 504 | return; |
ae773d0b AV |
505 | Eshort: |
506 | log_error(ls, "recovery message %x from %d is too short", | |
507 | rc->rc_type, nodeid); | |
e7fd4179 DT |
508 | } |
509 |