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Commit | Line | Data |
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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | ||
22 | /* | |
428870ff | 23 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
30af21b0 | 24 | * Copyright (c) 2011, 2018 by Delphix. All rights reserved. |
37abac6d | 25 | * Copyright (c) 2012, Joyent, Inc. All rights reserved. |
95fd54a1 | 26 | * Copyright (c) 2012 Pawel Jakub Dawidek <pawel@dawidek.net>. |
0cee2406 | 27 | * All rights reserved |
95fd54a1 | 28 | * Copyright (c) 2013 Steven Hartland. All rights reserved. |
671c9354 | 29 | * Copyright 2015, OmniTI Computer Consulting, Inc. All rights reserved. |
23d70cde | 30 | * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com> |
d8d418ff | 31 | * Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com>. All rights reserved. |
4c0883fb | 32 | * Copyright (c) 2019 Datto Inc. |
34dc7c2f BB |
33 | */ |
34 | ||
34dc7c2f BB |
35 | #include <assert.h> |
36 | #include <ctype.h> | |
37 | #include <errno.h> | |
34dc7c2f BB |
38 | #include <libintl.h> |
39 | #include <stdio.h> | |
40 | #include <stdlib.h> | |
41 | #include <strings.h> | |
42 | #include <unistd.h> | |
43 | #include <stddef.h> | |
44 | #include <fcntl.h> | |
45 | #include <sys/mount.h> | |
9b020fd9 BB |
46 | #include <sys/mntent.h> |
47 | #include <sys/mnttab.h> | |
48 | #include <sys/avl.h> | |
49 | #include <sys/debug.h> | |
5c3f61eb | 50 | #include <sys/stat.h> |
9b020fd9 | 51 | #include <stddef.h> |
428870ff BB |
52 | #include <pthread.h> |
53 | #include <umem.h> | |
37abac6d | 54 | #include <time.h> |
34dc7c2f BB |
55 | |
56 | #include <libzfs.h> | |
9b67f605 | 57 | #include <libzfs_core.h> |
e89f1295 | 58 | #include <libzutil.h> |
34dc7c2f BB |
59 | |
60 | #include "zfs_namecheck.h" | |
61 | #include "zfs_prop.h" | |
428870ff | 62 | #include "zfs_fletcher.h" |
34dc7c2f | 63 | #include "libzfs_impl.h" |
c618f87c | 64 | #include <cityhash.h> |
47dfff3b | 65 | #include <zlib.h> |
428870ff | 66 | #include <sys/zio_checksum.h> |
b5256303 | 67 | #include <sys/dsl_crypt.h> |
428870ff | 68 | #include <sys/ddt.h> |
1b9d8c34 | 69 | #include <sys/socket.h> |
3c67d83a | 70 | #include <sys/sha2.h> |
34dc7c2f | 71 | |
428870ff BB |
72 | /* in libzfs_dataset.c */ |
73 | extern void zfs_setprop_error(libzfs_handle_t *, zfs_prop_t, int, char *); | |
34dc7c2f | 74 | |
fcff0f35 PD |
75 | static int zfs_receive_impl(libzfs_handle_t *, const char *, const char *, |
76 | recvflags_t *, int, const char *, nvlist_t *, avl_tree_t *, char **, int, | |
a3eeab2d | 77 | uint64_t *, const char *, nvlist_t *); |
30af21b0 PD |
78 | static int guid_to_name_redact_snaps(libzfs_handle_t *hdl, const char *parent, |
79 | uint64_t guid, boolean_t bookmark_ok, uint64_t *redact_snap_guids, | |
80 | uint64_t num_redact_snaps, char *name); | |
47dfff3b MA |
81 | static int guid_to_name(libzfs_handle_t *, const char *, |
82 | uint64_t, boolean_t, char *); | |
428870ff | 83 | |
2598c001 | 84 | static const zio_cksum_t zero_cksum = { { 0 } }; |
428870ff BB |
85 | |
86 | typedef struct dedup_arg { | |
87 | int inputfd; | |
88 | int outputfd; | |
89 | libzfs_handle_t *dedup_hdl; | |
90 | } dedup_arg_t; | |
91 | ||
37abac6d BP |
92 | typedef struct progress_arg { |
93 | zfs_handle_t *pa_zhp; | |
94 | int pa_fd; | |
95 | boolean_t pa_parsable; | |
30af21b0 PD |
96 | boolean_t pa_estimate; |
97 | int pa_verbosity; | |
37abac6d BP |
98 | } progress_arg_t; |
99 | ||
428870ff BB |
100 | typedef struct dataref { |
101 | uint64_t ref_guid; | |
102 | uint64_t ref_object; | |
103 | uint64_t ref_offset; | |
104 | } dataref_t; | |
105 | ||
106 | typedef struct dedup_entry { | |
107 | struct dedup_entry *dde_next; | |
108 | zio_cksum_t dde_chksum; | |
109 | uint64_t dde_prop; | |
110 | dataref_t dde_ref; | |
111 | } dedup_entry_t; | |
112 | ||
113 | #define MAX_DDT_PHYSMEM_PERCENT 20 | |
114 | #define SMALLEST_POSSIBLE_MAX_DDT_MB 128 | |
115 | ||
116 | typedef struct dedup_table { | |
117 | dedup_entry_t **dedup_hash_array; | |
118 | umem_cache_t *ddecache; | |
119 | uint64_t max_ddt_size; /* max dedup table size in bytes */ | |
120 | uint64_t cur_ddt_size; /* current dedup table size in bytes */ | |
121 | uint64_t ddt_count; | |
122 | int numhashbits; | |
123 | boolean_t ddt_full; | |
124 | } dedup_table_t; | |
125 | ||
126 | static int | |
127 | high_order_bit(uint64_t n) | |
128 | { | |
129 | int count; | |
130 | ||
131 | for (count = 0; n != 0; count++) | |
132 | n >>= 1; | |
133 | return (count); | |
134 | } | |
135 | ||
136 | static size_t | |
137 | ssread(void *buf, size_t len, FILE *stream) | |
138 | { | |
139 | size_t outlen; | |
140 | ||
141 | if ((outlen = fread(buf, len, 1, stream)) == 0) | |
142 | return (0); | |
143 | ||
144 | return (outlen); | |
145 | } | |
146 | ||
147 | static void | |
148 | ddt_hash_append(libzfs_handle_t *hdl, dedup_table_t *ddt, dedup_entry_t **ddepp, | |
149 | zio_cksum_t *cs, uint64_t prop, dataref_t *dr) | |
150 | { | |
151 | dedup_entry_t *dde; | |
152 | ||
153 | if (ddt->cur_ddt_size >= ddt->max_ddt_size) { | |
154 | if (ddt->ddt_full == B_FALSE) { | |
155 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
156 | "Dedup table full. Deduplication will continue " | |
157 | "with existing table entries")); | |
158 | ddt->ddt_full = B_TRUE; | |
159 | } | |
160 | return; | |
161 | } | |
162 | ||
163 | if ((dde = umem_cache_alloc(ddt->ddecache, UMEM_DEFAULT)) | |
164 | != NULL) { | |
165 | assert(*ddepp == NULL); | |
166 | dde->dde_next = NULL; | |
167 | dde->dde_chksum = *cs; | |
168 | dde->dde_prop = prop; | |
169 | dde->dde_ref = *dr; | |
170 | *ddepp = dde; | |
171 | ddt->cur_ddt_size += sizeof (dedup_entry_t); | |
172 | ddt->ddt_count++; | |
173 | } | |
174 | } | |
175 | ||
176 | /* | |
177 | * Using the specified dedup table, do a lookup for an entry with | |
178 | * the checksum cs. If found, return the block's reference info | |
179 | * in *dr. Otherwise, insert a new entry in the dedup table, using | |
180 | * the reference information specified by *dr. | |
181 | * | |
182 | * return value: true - entry was found | |
183 | * false - entry was not found | |
184 | */ | |
185 | static boolean_t | |
186 | ddt_update(libzfs_handle_t *hdl, dedup_table_t *ddt, zio_cksum_t *cs, | |
187 | uint64_t prop, dataref_t *dr) | |
188 | { | |
189 | uint32_t hashcode; | |
190 | dedup_entry_t **ddepp; | |
191 | ||
192 | hashcode = BF64_GET(cs->zc_word[0], 0, ddt->numhashbits); | |
193 | ||
194 | for (ddepp = &(ddt->dedup_hash_array[hashcode]); *ddepp != NULL; | |
195 | ddepp = &((*ddepp)->dde_next)) { | |
196 | if (ZIO_CHECKSUM_EQUAL(((*ddepp)->dde_chksum), *cs) && | |
197 | (*ddepp)->dde_prop == prop) { | |
198 | *dr = (*ddepp)->dde_ref; | |
199 | return (B_TRUE); | |
200 | } | |
201 | } | |
202 | ddt_hash_append(hdl, ddt, ddepp, cs, prop, dr); | |
203 | return (B_FALSE); | |
204 | } | |
205 | ||
206 | static int | |
37f8a883 MA |
207 | dump_record(dmu_replay_record_t *drr, void *payload, int payload_len, |
208 | zio_cksum_t *zc, int outfd) | |
428870ff | 209 | { |
37f8a883 MA |
210 | ASSERT3U(offsetof(dmu_replay_record_t, drr_u.drr_checksum.drr_checksum), |
211 | ==, sizeof (dmu_replay_record_t) - sizeof (zio_cksum_t)); | |
212 | fletcher_4_incremental_native(drr, | |
213 | offsetof(dmu_replay_record_t, drr_u.drr_checksum.drr_checksum), zc); | |
214 | if (drr->drr_type != DRR_BEGIN) { | |
215 | ASSERT(ZIO_CHECKSUM_IS_ZERO(&drr->drr_u. | |
216 | drr_checksum.drr_checksum)); | |
217 | drr->drr_u.drr_checksum.drr_checksum = *zc; | |
218 | } | |
219 | fletcher_4_incremental_native(&drr->drr_u.drr_checksum.drr_checksum, | |
220 | sizeof (zio_cksum_t), zc); | |
221 | if (write(outfd, drr, sizeof (*drr)) == -1) | |
222 | return (errno); | |
223 | if (payload_len != 0) { | |
224 | fletcher_4_incremental_native(payload, payload_len, zc); | |
225 | if (write(outfd, payload, payload_len) == -1) | |
226 | return (errno); | |
227 | } | |
228 | return (0); | |
428870ff BB |
229 | } |
230 | ||
231 | /* | |
232 | * This function is started in a separate thread when the dedup option | |
233 | * has been requested. The main send thread determines the list of | |
234 | * snapshots to be included in the send stream and makes the ioctl calls | |
235 | * for each one. But instead of having the ioctl send the output to the | |
236 | * the output fd specified by the caller of zfs_send()), the | |
237 | * ioctl is told to direct the output to a pipe, which is read by the | |
238 | * alternate thread running THIS function. This function does the | |
239 | * dedup'ing by: | |
240 | * 1. building a dedup table (the DDT) | |
241 | * 2. doing checksums on each data block and inserting a record in the DDT | |
242 | * 3. looking for matching checksums, and | |
243 | * 4. sending a DRR_WRITE_BYREF record instead of a write record whenever | |
244 | * a duplicate block is found. | |
245 | * The output of this function then goes to the output fd requested | |
246 | * by the caller of zfs_send(). | |
247 | */ | |
248 | static void * | |
249 | cksummer(void *arg) | |
250 | { | |
251 | dedup_arg_t *dda = arg; | |
f1512ee6 | 252 | char *buf = zfs_alloc(dda->dedup_hdl, SPA_MAXBLOCKSIZE); |
47dfff3b | 253 | dmu_replay_record_t thedrr = { 0 }; |
428870ff | 254 | dmu_replay_record_t *drr = &thedrr; |
428870ff BB |
255 | FILE *ofp; |
256 | int outfd; | |
428870ff BB |
257 | dedup_table_t ddt; |
258 | zio_cksum_t stream_cksum; | |
428870ff BB |
259 | uint64_t numbuckets; |
260 | ||
2e0e443a GM |
261 | #ifdef _ILP32 |
262 | ddt.max_ddt_size = SMALLEST_POSSIBLE_MAX_DDT_MB << 20; | |
263 | #else | |
264 | uint64_t physmem = sysconf(_SC_PHYS_PAGES) * sysconf(_SC_PAGESIZE); | |
428870ff | 265 | ddt.max_ddt_size = |
37f8a883 MA |
266 | MAX((physmem * MAX_DDT_PHYSMEM_PERCENT) / 100, |
267 | SMALLEST_POSSIBLE_MAX_DDT_MB << 20); | |
2e0e443a | 268 | #endif |
428870ff | 269 | |
37f8a883 | 270 | numbuckets = ddt.max_ddt_size / (sizeof (dedup_entry_t)); |
428870ff BB |
271 | |
272 | /* | |
273 | * numbuckets must be a power of 2. Increase number to | |
274 | * a power of 2 if necessary. | |
275 | */ | |
276 | if (!ISP2(numbuckets)) | |
f4bae2ed | 277 | numbuckets = 1ULL << high_order_bit(numbuckets); |
428870ff BB |
278 | |
279 | ddt.dedup_hash_array = calloc(numbuckets, sizeof (dedup_entry_t *)); | |
280 | ddt.ddecache = umem_cache_create("dde", sizeof (dedup_entry_t), 0, | |
281 | NULL, NULL, NULL, NULL, NULL, 0); | |
282 | ddt.cur_ddt_size = numbuckets * sizeof (dedup_entry_t *); | |
283 | ddt.numhashbits = high_order_bit(numbuckets) - 1; | |
284 | ddt.ddt_full = B_FALSE; | |
285 | ||
428870ff BB |
286 | outfd = dda->outputfd; |
287 | ofp = fdopen(dda->inputfd, "r"); | |
37f8a883 | 288 | while (ssread(drr, sizeof (*drr), ofp) != 0) { |
428870ff | 289 | |
e2454897 GM |
290 | /* |
291 | * kernel filled in checksum, we are going to write same | |
292 | * record, but need to regenerate checksum. | |
293 | */ | |
294 | if (drr->drr_type != DRR_BEGIN) { | |
295 | bzero(&drr->drr_u.drr_checksum.drr_checksum, | |
296 | sizeof (drr->drr_u.drr_checksum.drr_checksum)); | |
297 | } | |
298 | ||
428870ff BB |
299 | switch (drr->drr_type) { |
300 | case DRR_BEGIN: | |
301 | { | |
37f8a883 MA |
302 | struct drr_begin *drrb = &drr->drr_u.drr_begin; |
303 | int fflags; | |
304 | int sz = 0; | |
428870ff BB |
305 | ZIO_SET_CHECKSUM(&stream_cksum, 0, 0, 0, 0); |
306 | ||
37f8a883 MA |
307 | ASSERT3U(drrb->drr_magic, ==, DMU_BACKUP_MAGIC); |
308 | ||
428870ff BB |
309 | /* set the DEDUP feature flag for this stream */ |
310 | fflags = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo); | |
311 | fflags |= (DMU_BACKUP_FEATURE_DEDUP | | |
312 | DMU_BACKUP_FEATURE_DEDUPPROPS); | |
313 | DMU_SET_FEATUREFLAGS(drrb->drr_versioninfo, fflags); | |
314 | ||
47dfff3b | 315 | if (drr->drr_payloadlen != 0) { |
37f8a883 | 316 | sz = drr->drr_payloadlen; |
428870ff | 317 | |
f1512ee6 MA |
318 | if (sz > SPA_MAXBLOCKSIZE) { |
319 | buf = zfs_realloc(dda->dedup_hdl, buf, | |
320 | SPA_MAXBLOCKSIZE, sz); | |
428870ff BB |
321 | } |
322 | (void) ssread(buf, sz, ofp); | |
323 | if (ferror(stdin)) | |
324 | perror("fread"); | |
428870ff | 325 | } |
37f8a883 MA |
326 | if (dump_record(drr, buf, sz, &stream_cksum, |
327 | outfd) != 0) | |
328 | goto out; | |
428870ff BB |
329 | break; |
330 | } | |
331 | ||
332 | case DRR_END: | |
333 | { | |
37f8a883 | 334 | struct drr_end *drre = &drr->drr_u.drr_end; |
428870ff | 335 | /* use the recalculated checksum */ |
37f8a883 MA |
336 | drre->drr_checksum = stream_cksum; |
337 | if (dump_record(drr, NULL, 0, &stream_cksum, | |
338 | outfd) != 0) | |
428870ff BB |
339 | goto out; |
340 | break; | |
341 | } | |
342 | ||
343 | case DRR_OBJECT: | |
344 | { | |
37f8a883 | 345 | struct drr_object *drro = &drr->drr_u.drr_object; |
428870ff BB |
346 | if (drro->drr_bonuslen > 0) { |
347 | (void) ssread(buf, | |
b5256303 | 348 | DRR_OBJECT_PAYLOAD_SIZE(drro), ofp); |
428870ff | 349 | } |
b5256303 | 350 | if (dump_record(drr, buf, DRR_OBJECT_PAYLOAD_SIZE(drro), |
37f8a883 MA |
351 | &stream_cksum, outfd) != 0) |
352 | goto out; | |
428870ff BB |
353 | break; |
354 | } | |
355 | ||
356 | case DRR_SPILL: | |
357 | { | |
37f8a883 | 358 | struct drr_spill *drrs = &drr->drr_u.drr_spill; |
b5256303 TC |
359 | (void) ssread(buf, DRR_SPILL_PAYLOAD_SIZE(drrs), ofp); |
360 | if (dump_record(drr, buf, DRR_SPILL_PAYLOAD_SIZE(drrs), | |
37f8a883 | 361 | &stream_cksum, outfd) != 0) |
428870ff BB |
362 | goto out; |
363 | break; | |
364 | } | |
365 | ||
366 | case DRR_FREEOBJECTS: | |
367 | { | |
37f8a883 MA |
368 | if (dump_record(drr, NULL, 0, &stream_cksum, |
369 | outfd) != 0) | |
428870ff BB |
370 | goto out; |
371 | break; | |
372 | } | |
373 | ||
374 | case DRR_WRITE: | |
375 | { | |
37f8a883 | 376 | struct drr_write *drrw = &drr->drr_u.drr_write; |
428870ff | 377 | dataref_t dataref; |
2aa34383 | 378 | uint64_t payload_size; |
428870ff | 379 | |
2aa34383 DK |
380 | payload_size = DRR_WRITE_PAYLOAD_SIZE(drrw); |
381 | (void) ssread(buf, payload_size, ofp); | |
428870ff BB |
382 | |
383 | /* | |
384 | * Use the existing checksum if it's dedup-capable, | |
385 | * else calculate a SHA256 checksum for it. | |
386 | */ | |
387 | ||
388 | if (ZIO_CHECKSUM_EQUAL(drrw->drr_key.ddk_cksum, | |
389 | zero_cksum) || | |
b5256303 | 390 | !DRR_IS_DEDUP_CAPABLE(drrw->drr_flags)) { |
a6255b7f | 391 | SHA2_CTX ctx; |
9c905c55 BB |
392 | zio_cksum_t tmpsha256; |
393 | ||
a6255b7f DQ |
394 | SHA2Init(SHA256, &ctx); |
395 | SHA2Update(&ctx, buf, payload_size); | |
396 | SHA2Final(&tmpsha256, &ctx); | |
428870ff | 397 | |
428870ff BB |
398 | drrw->drr_key.ddk_cksum.zc_word[0] = |
399 | BE_64(tmpsha256.zc_word[0]); | |
400 | drrw->drr_key.ddk_cksum.zc_word[1] = | |
401 | BE_64(tmpsha256.zc_word[1]); | |
402 | drrw->drr_key.ddk_cksum.zc_word[2] = | |
403 | BE_64(tmpsha256.zc_word[2]); | |
404 | drrw->drr_key.ddk_cksum.zc_word[3] = | |
405 | BE_64(tmpsha256.zc_word[3]); | |
406 | drrw->drr_checksumtype = ZIO_CHECKSUM_SHA256; | |
b5256303 | 407 | drrw->drr_flags |= DRR_CHECKSUM_DEDUP; |
428870ff BB |
408 | } |
409 | ||
410 | dataref.ref_guid = drrw->drr_toguid; | |
411 | dataref.ref_object = drrw->drr_object; | |
412 | dataref.ref_offset = drrw->drr_offset; | |
413 | ||
414 | if (ddt_update(dda->dedup_hdl, &ddt, | |
415 | &drrw->drr_key.ddk_cksum, drrw->drr_key.ddk_prop, | |
416 | &dataref)) { | |
37f8a883 MA |
417 | dmu_replay_record_t wbr_drr = {0}; |
418 | struct drr_write_byref *wbr_drrr = | |
419 | &wbr_drr.drr_u.drr_write_byref; | |
420 | ||
428870ff | 421 | /* block already present in stream */ |
37f8a883 MA |
422 | wbr_drr.drr_type = DRR_WRITE_BYREF; |
423 | ||
428870ff BB |
424 | wbr_drrr->drr_object = drrw->drr_object; |
425 | wbr_drrr->drr_offset = drrw->drr_offset; | |
2aa34383 | 426 | wbr_drrr->drr_length = drrw->drr_logical_size; |
428870ff BB |
427 | wbr_drrr->drr_toguid = drrw->drr_toguid; |
428 | wbr_drrr->drr_refguid = dataref.ref_guid; | |
429 | wbr_drrr->drr_refobject = | |
430 | dataref.ref_object; | |
431 | wbr_drrr->drr_refoffset = | |
432 | dataref.ref_offset; | |
433 | ||
434 | wbr_drrr->drr_checksumtype = | |
435 | drrw->drr_checksumtype; | |
b5256303 | 436 | wbr_drrr->drr_flags = drrw->drr_flags; |
428870ff BB |
437 | wbr_drrr->drr_key.ddk_cksum = |
438 | drrw->drr_key.ddk_cksum; | |
439 | wbr_drrr->drr_key.ddk_prop = | |
440 | drrw->drr_key.ddk_prop; | |
441 | ||
37f8a883 MA |
442 | if (dump_record(&wbr_drr, NULL, 0, |
443 | &stream_cksum, outfd) != 0) | |
428870ff BB |
444 | goto out; |
445 | } else { | |
446 | /* block not previously seen */ | |
2aa34383 | 447 | if (dump_record(drr, buf, payload_size, |
37f8a883 | 448 | &stream_cksum, outfd) != 0) |
428870ff BB |
449 | goto out; |
450 | } | |
451 | break; | |
452 | } | |
453 | ||
9b67f605 MA |
454 | case DRR_WRITE_EMBEDDED: |
455 | { | |
37f8a883 MA |
456 | struct drr_write_embedded *drrwe = |
457 | &drr->drr_u.drr_write_embedded; | |
9b67f605 MA |
458 | (void) ssread(buf, |
459 | P2ROUNDUP((uint64_t)drrwe->drr_psize, 8), ofp); | |
37f8a883 | 460 | if (dump_record(drr, buf, |
9b67f605 | 461 | P2ROUNDUP((uint64_t)drrwe->drr_psize, 8), |
37f8a883 | 462 | &stream_cksum, outfd) != 0) |
9b67f605 MA |
463 | goto out; |
464 | break; | |
465 | } | |
466 | ||
428870ff BB |
467 | case DRR_FREE: |
468 | { | |
37f8a883 MA |
469 | if (dump_record(drr, NULL, 0, &stream_cksum, |
470 | outfd) != 0) | |
428870ff BB |
471 | goto out; |
472 | break; | |
473 | } | |
474 | ||
b5256303 TC |
475 | case DRR_OBJECT_RANGE: |
476 | { | |
477 | if (dump_record(drr, NULL, 0, &stream_cksum, | |
478 | outfd) != 0) | |
479 | goto out; | |
480 | break; | |
481 | } | |
482 | ||
428870ff | 483 | default: |
37f8a883 | 484 | (void) fprintf(stderr, "INVALID record type 0x%x\n", |
428870ff BB |
485 | drr->drr_type); |
486 | /* should never happen, so assert */ | |
487 | assert(B_FALSE); | |
488 | } | |
489 | } | |
490 | out: | |
491 | umem_cache_destroy(ddt.ddecache); | |
492 | free(ddt.dedup_hash_array); | |
493 | free(buf); | |
494 | (void) fclose(ofp); | |
495 | ||
496 | return (NULL); | |
497 | } | |
b128c09f | 498 | |
34dc7c2f BB |
499 | /* |
500 | * Routines for dealing with the AVL tree of fs-nvlists | |
501 | */ | |
502 | typedef struct fsavl_node { | |
503 | avl_node_t fn_node; | |
504 | nvlist_t *fn_nvfs; | |
505 | char *fn_snapname; | |
506 | uint64_t fn_guid; | |
507 | } fsavl_node_t; | |
508 | ||
509 | static int | |
510 | fsavl_compare(const void *arg1, const void *arg2) | |
511 | { | |
ee36c709 GN |
512 | const fsavl_node_t *fn1 = (const fsavl_node_t *)arg1; |
513 | const fsavl_node_t *fn2 = (const fsavl_node_t *)arg2; | |
514 | ||
ca577779 | 515 | return (TREE_CMP(fn1->fn_guid, fn2->fn_guid)); |
34dc7c2f BB |
516 | } |
517 | ||
518 | /* | |
519 | * Given the GUID of a snapshot, find its containing filesystem and | |
520 | * (optionally) name. | |
521 | */ | |
522 | static nvlist_t * | |
523 | fsavl_find(avl_tree_t *avl, uint64_t snapguid, char **snapname) | |
524 | { | |
525 | fsavl_node_t fn_find; | |
526 | fsavl_node_t *fn; | |
527 | ||
528 | fn_find.fn_guid = snapguid; | |
529 | ||
530 | fn = avl_find(avl, &fn_find, NULL); | |
531 | if (fn) { | |
532 | if (snapname) | |
533 | *snapname = fn->fn_snapname; | |
534 | return (fn->fn_nvfs); | |
535 | } | |
536 | return (NULL); | |
537 | } | |
538 | ||
539 | static void | |
540 | fsavl_destroy(avl_tree_t *avl) | |
541 | { | |
542 | fsavl_node_t *fn; | |
543 | void *cookie; | |
544 | ||
545 | if (avl == NULL) | |
546 | return; | |
547 | ||
548 | cookie = NULL; | |
549 | while ((fn = avl_destroy_nodes(avl, &cookie)) != NULL) | |
550 | free(fn); | |
551 | avl_destroy(avl); | |
552 | free(avl); | |
553 | } | |
554 | ||
45d1cae3 BB |
555 | /* |
556 | * Given an nvlist, produce an avl tree of snapshots, ordered by guid | |
557 | */ | |
34dc7c2f BB |
558 | static avl_tree_t * |
559 | fsavl_create(nvlist_t *fss) | |
560 | { | |
561 | avl_tree_t *fsavl; | |
562 | nvpair_t *fselem = NULL; | |
563 | ||
564 | if ((fsavl = malloc(sizeof (avl_tree_t))) == NULL) | |
565 | return (NULL); | |
566 | ||
567 | avl_create(fsavl, fsavl_compare, sizeof (fsavl_node_t), | |
568 | offsetof(fsavl_node_t, fn_node)); | |
569 | ||
570 | while ((fselem = nvlist_next_nvpair(fss, fselem)) != NULL) { | |
571 | nvlist_t *nvfs, *snaps; | |
572 | nvpair_t *snapelem = NULL; | |
573 | ||
574 | VERIFY(0 == nvpair_value_nvlist(fselem, &nvfs)); | |
575 | VERIFY(0 == nvlist_lookup_nvlist(nvfs, "snaps", &snaps)); | |
576 | ||
577 | while ((snapelem = | |
578 | nvlist_next_nvpair(snaps, snapelem)) != NULL) { | |
579 | fsavl_node_t *fn; | |
580 | uint64_t guid; | |
581 | ||
582 | VERIFY(0 == nvpair_value_uint64(snapelem, &guid)); | |
583 | if ((fn = malloc(sizeof (fsavl_node_t))) == NULL) { | |
584 | fsavl_destroy(fsavl); | |
585 | return (NULL); | |
586 | } | |
587 | fn->fn_nvfs = nvfs; | |
588 | fn->fn_snapname = nvpair_name(snapelem); | |
589 | fn->fn_guid = guid; | |
590 | ||
591 | /* | |
592 | * Note: if there are multiple snaps with the | |
593 | * same GUID, we ignore all but one. | |
594 | */ | |
595 | if (avl_find(fsavl, fn, NULL) == NULL) | |
596 | avl_add(fsavl, fn); | |
597 | else | |
598 | free(fn); | |
599 | } | |
600 | } | |
601 | ||
602 | return (fsavl); | |
603 | } | |
604 | ||
605 | /* | |
606 | * Routines for dealing with the giant nvlist of fs-nvlists, etc. | |
607 | */ | |
608 | typedef struct send_data { | |
66356240 K |
609 | /* |
610 | * assigned inside every recursive call, | |
611 | * restored from *_save on return: | |
612 | * | |
613 | * guid of fromsnap snapshot in parent dataset | |
614 | * txg of fromsnap snapshot in current dataset | |
615 | * txg of tosnap snapshot in current dataset | |
616 | */ | |
617 | ||
34dc7c2f | 618 | uint64_t parent_fromsnap_guid; |
66356240 K |
619 | uint64_t fromsnap_txg; |
620 | uint64_t tosnap_txg; | |
621 | ||
622 | /* the nvlists get accumulated during depth-first traversal */ | |
34dc7c2f BB |
623 | nvlist_t *parent_snaps; |
624 | nvlist_t *fss; | |
b128c09f | 625 | nvlist_t *snapprops; |
9c5e88b1 | 626 | nvlist_t *snapholds; /* user holds */ |
66356240 K |
627 | |
628 | /* send-receive configuration, does not change during traversal */ | |
629 | const char *fsname; | |
34dc7c2f BB |
630 | const char *fromsnap; |
631 | const char *tosnap; | |
428870ff | 632 | boolean_t recursive; |
4c0883fb | 633 | boolean_t raw; |
f94b3cbf | 634 | boolean_t doall; |
4c0883fb | 635 | boolean_t replicate; |
66356240 | 636 | boolean_t verbose; |
4c0883fb | 637 | boolean_t backup; |
05748550 AG |
638 | boolean_t seenfrom; |
639 | boolean_t seento; | |
9c5e88b1 PZ |
640 | boolean_t holds; /* were holds requested with send -h */ |
641 | boolean_t props; | |
34dc7c2f BB |
642 | |
643 | /* | |
644 | * The header nvlist is of the following format: | |
645 | * { | |
646 | * "tosnap" -> string | |
647 | * "fromsnap" -> string (if incremental) | |
648 | * "fss" -> { | |
649 | * id -> { | |
650 | * | |
651 | * "name" -> string (full name; for debugging) | |
652 | * "parentfromsnap" -> number (guid of fromsnap in parent) | |
653 | * | |
654 | * "props" -> { name -> value (only if set here) } | |
655 | * "snaps" -> { name (lastname) -> number (guid) } | |
b128c09f | 656 | * "snapprops" -> { name (lastname) -> { name -> value } } |
9c5e88b1 | 657 | * "snapholds" -> { name (lastname) -> { holdname -> crtime } } |
34dc7c2f BB |
658 | * |
659 | * "origin" -> number (guid) (if clone) | |
b5256303 | 660 | * "is_encroot" -> boolean |
34dc7c2f BB |
661 | * "sent" -> boolean (not on-disk) |
662 | * } | |
663 | * } | |
664 | * } | |
665 | * | |
666 | */ | |
667 | } send_data_t; | |
668 | ||
faa97c16 | 669 | static void |
670 | send_iterate_prop(zfs_handle_t *zhp, boolean_t received_only, nvlist_t *nv); | |
b128c09f | 671 | |
34dc7c2f BB |
672 | static int |
673 | send_iterate_snap(zfs_handle_t *zhp, void *arg) | |
674 | { | |
675 | send_data_t *sd = arg; | |
676 | uint64_t guid = zhp->zfs_dmustats.dds_guid; | |
66356240 | 677 | uint64_t txg = zhp->zfs_dmustats.dds_creation_txg; |
34dc7c2f | 678 | char *snapname; |
b128c09f | 679 | nvlist_t *nv; |
e890dd85 | 680 | boolean_t isfromsnap, istosnap, istosnapwithnofrom; |
34dc7c2f BB |
681 | |
682 | snapname = strrchr(zhp->zfs_name, '@')+1; | |
05748550 AG |
683 | isfromsnap = (sd->fromsnap != NULL && |
684 | strcmp(sd->fromsnap, snapname) == 0); | |
685 | istosnap = (sd->tosnap != NULL && (strcmp(sd->tosnap, snapname) == 0)); | |
e890dd85 | 686 | istosnapwithnofrom = (istosnap && sd->fromsnap == NULL); |
34dc7c2f | 687 | |
66356240 K |
688 | if (sd->tosnap_txg != 0 && txg > sd->tosnap_txg) { |
689 | if (sd->verbose) { | |
690 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
691 | "skipping snapshot %s because it was created " | |
692 | "after the destination snapshot (%s)\n"), | |
693 | zhp->zfs_name, sd->tosnap); | |
694 | } | |
695 | zfs_close(zhp); | |
696 | return (0); | |
697 | } | |
698 | ||
e890dd85 | 699 | VERIFY(0 == nvlist_add_uint64(sd->parent_snaps, snapname, guid)); |
34dc7c2f BB |
700 | /* |
701 | * NB: if there is no fromsnap here (it's a newly created fs in | |
702 | * an incremental replication), we will substitute the tosnap. | |
703 | */ | |
05748550 | 704 | if (isfromsnap || (sd->parent_fromsnap_guid == 0 && istosnap)) { |
34dc7c2f BB |
705 | sd->parent_fromsnap_guid = guid; |
706 | } | |
707 | ||
05748550 AG |
708 | if (!sd->recursive) { |
709 | if (!sd->seenfrom && isfromsnap) { | |
710 | sd->seenfrom = B_TRUE; | |
711 | zfs_close(zhp); | |
712 | return (0); | |
713 | } | |
714 | ||
e890dd85 | 715 | if ((sd->seento || !sd->seenfrom) && !istosnapwithnofrom) { |
05748550 AG |
716 | zfs_close(zhp); |
717 | return (0); | |
718 | } | |
719 | ||
720 | if (istosnap) | |
721 | sd->seento = B_TRUE; | |
722 | } | |
723 | ||
b128c09f | 724 | VERIFY(0 == nvlist_alloc(&nv, NV_UNIQUE_NAME, 0)); |
faa97c16 | 725 | send_iterate_prop(zhp, sd->backup, nv); |
b128c09f BB |
726 | VERIFY(0 == nvlist_add_nvlist(sd->snapprops, snapname, nv)); |
727 | nvlist_free(nv); | |
9c5e88b1 PZ |
728 | if (sd->holds) { |
729 | nvlist_t *holds = fnvlist_alloc(); | |
730 | int err = lzc_get_holds(zhp->zfs_name, &holds); | |
731 | if (err == 0) { | |
732 | VERIFY(0 == nvlist_add_nvlist(sd->snapholds, | |
733 | snapname, holds)); | |
734 | } | |
735 | fnvlist_free(holds); | |
736 | } | |
b128c09f | 737 | |
34dc7c2f BB |
738 | zfs_close(zhp); |
739 | return (0); | |
740 | } | |
741 | ||
742 | static void | |
faa97c16 | 743 | send_iterate_prop(zfs_handle_t *zhp, boolean_t received_only, nvlist_t *nv) |
34dc7c2f | 744 | { |
faa97c16 | 745 | nvlist_t *props = NULL; |
34dc7c2f BB |
746 | nvpair_t *elem = NULL; |
747 | ||
faa97c16 | 748 | if (received_only) |
749 | props = zfs_get_recvd_props(zhp); | |
750 | else | |
751 | props = zhp->zfs_props; | |
752 | ||
753 | while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { | |
34dc7c2f BB |
754 | char *propname = nvpair_name(elem); |
755 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
756 | nvlist_t *propnv; | |
757 | ||
428870ff BB |
758 | if (!zfs_prop_user(propname)) { |
759 | /* | |
760 | * Realistically, this should never happen. However, | |
761 | * we want the ability to add DSL properties without | |
762 | * needing to make incompatible version changes. We | |
763 | * need to ignore unknown properties to allow older | |
764 | * software to still send datasets containing these | |
765 | * properties, with the unknown properties elided. | |
766 | */ | |
767 | if (prop == ZPROP_INVAL) | |
768 | continue; | |
9babb374 | 769 | |
428870ff BB |
770 | if (zfs_prop_readonly(prop)) |
771 | continue; | |
772 | } | |
34dc7c2f BB |
773 | |
774 | verify(nvpair_value_nvlist(elem, &propnv) == 0); | |
45d1cae3 BB |
775 | if (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_RESERVATION || |
776 | prop == ZFS_PROP_REFQUOTA || | |
777 | prop == ZFS_PROP_REFRESERVATION) { | |
428870ff | 778 | char *source; |
34dc7c2f BB |
779 | uint64_t value; |
780 | verify(nvlist_lookup_uint64(propnv, | |
781 | ZPROP_VALUE, &value) == 0); | |
b128c09f BB |
782 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) |
783 | continue; | |
428870ff BB |
784 | /* |
785 | * May have no source before SPA_VERSION_RECVD_PROPS, | |
786 | * but is still modifiable. | |
787 | */ | |
788 | if (nvlist_lookup_string(propnv, | |
789 | ZPROP_SOURCE, &source) == 0) { | |
790 | if ((strcmp(source, zhp->zfs_name) != 0) && | |
791 | (strcmp(source, | |
792 | ZPROP_SOURCE_VAL_RECVD) != 0)) | |
793 | continue; | |
794 | } | |
34dc7c2f BB |
795 | } else { |
796 | char *source; | |
797 | if (nvlist_lookup_string(propnv, | |
798 | ZPROP_SOURCE, &source) != 0) | |
799 | continue; | |
428870ff BB |
800 | if ((strcmp(source, zhp->zfs_name) != 0) && |
801 | (strcmp(source, ZPROP_SOURCE_VAL_RECVD) != 0)) | |
34dc7c2f BB |
802 | continue; |
803 | } | |
804 | ||
805 | if (zfs_prop_user(propname) || | |
806 | zfs_prop_get_type(prop) == PROP_TYPE_STRING) { | |
807 | char *value; | |
808 | verify(nvlist_lookup_string(propnv, | |
809 | ZPROP_VALUE, &value) == 0); | |
810 | VERIFY(0 == nvlist_add_string(nv, propname, value)); | |
811 | } else { | |
812 | uint64_t value; | |
813 | verify(nvlist_lookup_uint64(propnv, | |
814 | ZPROP_VALUE, &value) == 0); | |
815 | VERIFY(0 == nvlist_add_uint64(nv, propname, value)); | |
816 | } | |
817 | } | |
818 | } | |
819 | ||
66356240 K |
820 | /* |
821 | * returns snapshot creation txg | |
822 | * and returns 0 if the snapshot does not exist | |
823 | */ | |
824 | static uint64_t | |
825 | get_snap_txg(libzfs_handle_t *hdl, const char *fs, const char *snap) | |
826 | { | |
827 | char name[ZFS_MAX_DATASET_NAME_LEN]; | |
828 | uint64_t txg = 0; | |
829 | ||
830 | if (fs == NULL || fs[0] == '\0' || snap == NULL || snap[0] == '\0') | |
831 | return (txg); | |
832 | ||
833 | (void) snprintf(name, sizeof (name), "%s@%s", fs, snap); | |
834 | if (zfs_dataset_exists(hdl, name, ZFS_TYPE_SNAPSHOT)) { | |
835 | zfs_handle_t *zhp = zfs_open(hdl, name, ZFS_TYPE_SNAPSHOT); | |
836 | if (zhp != NULL) { | |
837 | txg = zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG); | |
838 | zfs_close(zhp); | |
839 | } | |
840 | } | |
841 | ||
842 | return (txg); | |
843 | } | |
844 | ||
45d1cae3 BB |
845 | /* |
846 | * recursively generate nvlists describing datasets. See comment | |
847 | * for the data structure send_data_t above for description of contents | |
848 | * of the nvlist. | |
849 | */ | |
34dc7c2f BB |
850 | static int |
851 | send_iterate_fs(zfs_handle_t *zhp, void *arg) | |
852 | { | |
853 | send_data_t *sd = arg; | |
b5256303 | 854 | nvlist_t *nvfs = NULL, *nv = NULL; |
428870ff | 855 | int rv = 0; |
4c0883fb | 856 | uint64_t min_txg = 0, max_txg = 0; |
34dc7c2f | 857 | uint64_t parent_fromsnap_guid_save = sd->parent_fromsnap_guid; |
66356240 K |
858 | uint64_t fromsnap_txg_save = sd->fromsnap_txg; |
859 | uint64_t tosnap_txg_save = sd->tosnap_txg; | |
860 | uint64_t txg = zhp->zfs_dmustats.dds_creation_txg; | |
34dc7c2f | 861 | uint64_t guid = zhp->zfs_dmustats.dds_guid; |
66356240 | 862 | uint64_t fromsnap_txg, tosnap_txg; |
34dc7c2f BB |
863 | char guidstring[64]; |
864 | ||
66356240 K |
865 | fromsnap_txg = get_snap_txg(zhp->zfs_hdl, zhp->zfs_name, sd->fromsnap); |
866 | if (fromsnap_txg != 0) | |
867 | sd->fromsnap_txg = fromsnap_txg; | |
868 | ||
869 | tosnap_txg = get_snap_txg(zhp->zfs_hdl, zhp->zfs_name, sd->tosnap); | |
870 | if (tosnap_txg != 0) | |
871 | sd->tosnap_txg = tosnap_txg; | |
872 | ||
873 | /* | |
874 | * on the send side, if the current dataset does not have tosnap, | |
875 | * perform two additional checks: | |
876 | * | |
877 | * - skip sending the current dataset if it was created later than | |
878 | * the parent tosnap | |
879 | * - return error if the current dataset was created earlier than | |
880 | * the parent tosnap | |
881 | */ | |
882 | if (sd->tosnap != NULL && tosnap_txg == 0) { | |
883 | if (sd->tosnap_txg != 0 && txg > sd->tosnap_txg) { | |
884 | if (sd->verbose) { | |
885 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
886 | "skipping dataset %s: snapshot %s does " | |
887 | "not exist\n"), zhp->zfs_name, sd->tosnap); | |
888 | } | |
889 | } else { | |
890 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
891 | "cannot send %s@%s%s: snapshot %s@%s does not " | |
892 | "exist\n"), sd->fsname, sd->tosnap, sd->recursive ? | |
893 | dgettext(TEXT_DOMAIN, " recursively") : "", | |
894 | zhp->zfs_name, sd->tosnap); | |
30af21b0 | 895 | rv = EZFS_NOENT; |
66356240 K |
896 | } |
897 | goto out; | |
898 | } | |
899 | ||
4c0883fb AP |
900 | nvfs = fnvlist_alloc(); |
901 | fnvlist_add_string(nvfs, "name", zhp->zfs_name); | |
902 | fnvlist_add_uint64(nvfs, "parentfromsnap", | |
903 | sd->parent_fromsnap_guid); | |
34dc7c2f BB |
904 | |
905 | if (zhp->zfs_dmustats.dds_origin[0]) { | |
906 | zfs_handle_t *origin = zfs_open(zhp->zfs_hdl, | |
907 | zhp->zfs_dmustats.dds_origin, ZFS_TYPE_SNAPSHOT); | |
66356240 K |
908 | if (origin == NULL) { |
909 | rv = -1; | |
910 | goto out; | |
911 | } | |
4c0883fb AP |
912 | fnvlist_add_uint64(nvfs, "origin", |
913 | origin->zfs_dmustats.dds_guid); | |
ad7e908a TC |
914 | |
915 | zfs_close(origin); | |
34dc7c2f BB |
916 | } |
917 | ||
918 | /* iterate over props */ | |
9c5e88b1 | 919 | if (sd->props || sd->backup || sd->recursive) { |
4c0883fb | 920 | nv = fnvlist_alloc(); |
9c5e88b1 PZ |
921 | send_iterate_prop(zhp, sd->backup, nv); |
922 | } | |
b5256303 TC |
923 | if (zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != ZIO_CRYPT_OFF) { |
924 | boolean_t encroot; | |
925 | ||
926 | /* determine if this dataset is an encryption root */ | |
927 | if (zfs_crypto_get_encryption_root(zhp, &encroot, NULL) != 0) { | |
928 | rv = -1; | |
929 | goto out; | |
930 | } | |
931 | ||
932 | if (encroot) | |
4c0883fb | 933 | fnvlist_add_boolean(nvfs, "is_encroot"); |
b5256303 TC |
934 | |
935 | /* | |
936 | * Encrypted datasets can only be sent with properties if | |
937 | * the raw flag is specified because the receive side doesn't | |
938 | * currently have a mechanism for recursively asking the user | |
939 | * for new encryption parameters. | |
940 | */ | |
941 | if (!sd->raw) { | |
942 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
943 | "cannot send %s@%s: encrypted dataset %s may not " | |
944 | "be sent with properties without the raw flag\n"), | |
945 | sd->fsname, sd->tosnap, zhp->zfs_name); | |
946 | rv = -1; | |
947 | goto out; | |
948 | } | |
949 | ||
950 | } | |
951 | ||
9c5e88b1 | 952 | if (nv != NULL) |
4c0883fb | 953 | fnvlist_add_nvlist(nvfs, "props", nv); |
34dc7c2f BB |
954 | |
955 | /* iterate over snaps, and set sd->parent_fromsnap_guid */ | |
956 | sd->parent_fromsnap_guid = 0; | |
4c0883fb AP |
957 | sd->parent_snaps = fnvlist_alloc(); |
958 | sd->snapprops = fnvlist_alloc(); | |
9c5e88b1 PZ |
959 | if (sd->holds) |
960 | VERIFY(0 == nvlist_alloc(&sd->snapholds, NV_UNIQUE_NAME, 0)); | |
f94b3cbf TC |
961 | |
962 | ||
963 | /* | |
964 | * If this is a "doall" send, a replicate send or we're just trying | |
965 | * to gather a list of previous snapshots, iterate through all the | |
966 | * snaps in the txg range. Otherwise just look at the one we're | |
967 | * interested in. | |
968 | */ | |
969 | if (sd->doall || sd->replicate || sd->tosnap == NULL) { | |
970 | if (!sd->replicate && fromsnap_txg != 0) | |
971 | min_txg = fromsnap_txg; | |
972 | if (!sd->replicate && tosnap_txg != 0) | |
973 | max_txg = tosnap_txg; | |
974 | (void) zfs_iter_snapshots_sorted(zhp, send_iterate_snap, sd, | |
975 | min_txg, max_txg); | |
976 | } else { | |
977 | char snapname[MAXPATHLEN] = { 0 }; | |
978 | zfs_handle_t *snap; | |
979 | ||
f0ce0436 | 980 | (void) snprintf(snapname, sizeof (snapname), "%s@%s", |
f94b3cbf TC |
981 | zhp->zfs_name, sd->tosnap); |
982 | if (sd->fromsnap != NULL) | |
983 | sd->seenfrom = B_TRUE; | |
984 | snap = zfs_open(zhp->zfs_hdl, snapname, | |
985 | ZFS_TYPE_SNAPSHOT); | |
986 | if (snap != NULL) | |
987 | (void) send_iterate_snap(snap, sd); | |
988 | } | |
989 | ||
4c0883fb AP |
990 | fnvlist_add_nvlist(nvfs, "snaps", sd->parent_snaps); |
991 | fnvlist_add_nvlist(nvfs, "snapprops", sd->snapprops); | |
9c5e88b1 | 992 | if (sd->holds) |
4c0883fb AP |
993 | fnvlist_add_nvlist(nvfs, "snapholds", sd->snapholds); |
994 | fnvlist_free(sd->parent_snaps); | |
995 | fnvlist_free(sd->snapprops); | |
996 | fnvlist_free(sd->snapholds); | |
34dc7c2f BB |
997 | |
998 | /* add this fs to nvlist */ | |
999 | (void) snprintf(guidstring, sizeof (guidstring), | |
1000 | "0x%llx", (longlong_t)guid); | |
4c0883fb | 1001 | fnvlist_add_nvlist(sd->fss, guidstring, nvfs); |
34dc7c2f BB |
1002 | |
1003 | /* iterate over children */ | |
428870ff BB |
1004 | if (sd->recursive) |
1005 | rv = zfs_iter_filesystems(zhp, send_iterate_fs, sd); | |
34dc7c2f | 1006 | |
66356240 | 1007 | out: |
34dc7c2f | 1008 | sd->parent_fromsnap_guid = parent_fromsnap_guid_save; |
66356240 K |
1009 | sd->fromsnap_txg = fromsnap_txg_save; |
1010 | sd->tosnap_txg = tosnap_txg_save; | |
4c0883fb AP |
1011 | fnvlist_free(nv); |
1012 | fnvlist_free(nvfs); | |
34dc7c2f BB |
1013 | |
1014 | zfs_close(zhp); | |
1015 | return (rv); | |
1016 | } | |
1017 | ||
1018 | static int | |
1019 | gather_nvlist(libzfs_handle_t *hdl, const char *fsname, const char *fromsnap, | |
f94b3cbf TC |
1020 | const char *tosnap, boolean_t recursive, boolean_t raw, boolean_t doall, |
1021 | boolean_t replicate, boolean_t verbose, boolean_t backup, boolean_t holds, | |
1022 | boolean_t props, nvlist_t **nvlp, avl_tree_t **avlp) | |
34dc7c2f BB |
1023 | { |
1024 | zfs_handle_t *zhp; | |
1025 | send_data_t sd = { 0 }; | |
1026 | int error; | |
1027 | ||
1028 | zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
1029 | if (zhp == NULL) | |
1030 | return (EZFS_BADTYPE); | |
1031 | ||
1032 | VERIFY(0 == nvlist_alloc(&sd.fss, NV_UNIQUE_NAME, 0)); | |
66356240 | 1033 | sd.fsname = fsname; |
34dc7c2f BB |
1034 | sd.fromsnap = fromsnap; |
1035 | sd.tosnap = tosnap; | |
428870ff | 1036 | sd.recursive = recursive; |
b5256303 | 1037 | sd.raw = raw; |
f94b3cbf | 1038 | sd.doall = doall; |
4c0883fb | 1039 | sd.replicate = replicate; |
66356240 | 1040 | sd.verbose = verbose; |
faa97c16 | 1041 | sd.backup = backup; |
9c5e88b1 PZ |
1042 | sd.holds = holds; |
1043 | sd.props = props; | |
34dc7c2f BB |
1044 | |
1045 | if ((error = send_iterate_fs(zhp, &sd)) != 0) { | |
1046 | nvlist_free(sd.fss); | |
1047 | if (avlp != NULL) | |
1048 | *avlp = NULL; | |
1049 | *nvlp = NULL; | |
1050 | return (error); | |
1051 | } | |
1052 | ||
1053 | if (avlp != NULL && (*avlp = fsavl_create(sd.fss)) == NULL) { | |
1054 | nvlist_free(sd.fss); | |
1055 | *nvlp = NULL; | |
1056 | return (EZFS_NOMEM); | |
1057 | } | |
1058 | ||
1059 | *nvlp = sd.fss; | |
1060 | return (0); | |
1061 | } | |
1062 | ||
34dc7c2f BB |
1063 | /* |
1064 | * Routines specific to "zfs send" | |
1065 | */ | |
1066 | typedef struct send_dump_data { | |
1067 | /* these are all just the short snapname (the part after the @) */ | |
1068 | const char *fromsnap; | |
1069 | const char *tosnap; | |
eca7b760 | 1070 | char prevsnap[ZFS_MAX_DATASET_NAME_LEN]; |
572e2857 | 1071 | uint64_t prevsnap_obj; |
34dc7c2f | 1072 | boolean_t seenfrom, seento, replicate, doall, fromorigin; |
30af21b0 | 1073 | boolean_t dryrun, parsable, progress, embed_data, std_out; |
9c5e88b1 | 1074 | boolean_t large_block, compress, raw, holds; |
34dc7c2f BB |
1075 | int outfd; |
1076 | boolean_t err; | |
1077 | nvlist_t *fss; | |
95fd54a1 | 1078 | nvlist_t *snapholds; |
34dc7c2f | 1079 | avl_tree_t *fsavl; |
428870ff BB |
1080 | snapfilter_cb_t *filter_cb; |
1081 | void *filter_cb_arg; | |
1082 | nvlist_t *debugnv; | |
eca7b760 | 1083 | char holdtag[ZFS_MAX_DATASET_NAME_LEN]; |
572e2857 | 1084 | int cleanup_fd; |
30af21b0 | 1085 | int verbosity; |
330d06f9 | 1086 | uint64_t size; |
34dc7c2f BB |
1087 | } send_dump_data_t; |
1088 | ||
330d06f9 | 1089 | static int |
cf7684bc | 1090 | zfs_send_space(zfs_handle_t *zhp, const char *snapname, const char *from, |
1091 | enum lzc_send_flags flags, uint64_t *spacep) | |
330d06f9 | 1092 | { |
330d06f9 | 1093 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
cf7684bc | 1094 | int error; |
330d06f9 | 1095 | |
cf7684bc | 1096 | assert(snapname != NULL); |
1097 | error = lzc_send_space(snapname, from, flags, spacep); | |
330d06f9 | 1098 | |
cf7684bc | 1099 | if (error != 0) { |
330d06f9 MA |
1100 | char errbuf[1024]; |
1101 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
cf7684bc | 1102 | "warning: cannot estimate space for '%s'"), snapname); |
330d06f9 | 1103 | |
cf7684bc | 1104 | switch (error) { |
330d06f9 MA |
1105 | case EXDEV: |
1106 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1107 | "not an earlier snapshot from the same fs")); | |
1108 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
1109 | ||
1110 | case ENOENT: | |
cf7684bc | 1111 | if (zfs_dataset_exists(hdl, snapname, |
330d06f9 MA |
1112 | ZFS_TYPE_SNAPSHOT)) { |
1113 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
cf7684bc | 1114 | "incremental source (%s) does not exist"), |
1115 | snapname); | |
330d06f9 MA |
1116 | } |
1117 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
1118 | ||
1119 | case EDQUOT: | |
1120 | case EFBIG: | |
1121 | case EIO: | |
1122 | case ENOLINK: | |
1123 | case ENOSPC: | |
1124 | case ENOSTR: | |
1125 | case ENXIO: | |
1126 | case EPIPE: | |
1127 | case ERANGE: | |
1128 | case EFAULT: | |
1129 | case EROFS: | |
cf7684bc | 1130 | case EINVAL: |
1131 | zfs_error_aux(hdl, strerror(error)); | |
330d06f9 MA |
1132 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); |
1133 | ||
1134 | default: | |
cf7684bc | 1135 | return (zfs_standard_error(hdl, error, errbuf)); |
330d06f9 MA |
1136 | } |
1137 | } | |
1138 | ||
330d06f9 MA |
1139 | return (0); |
1140 | } | |
1141 | ||
34dc7c2f BB |
1142 | /* |
1143 | * Dumps a backup of the given snapshot (incremental from fromsnap if it's not | |
1144 | * NULL) to the file descriptor specified by outfd. | |
1145 | */ | |
1146 | static int | |
572e2857 | 1147 | dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, uint64_t fromsnap_obj, |
9b67f605 MA |
1148 | boolean_t fromorigin, int outfd, enum lzc_send_flags flags, |
1149 | nvlist_t *debugnv) | |
34dc7c2f | 1150 | { |
13fe0198 | 1151 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f | 1152 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
428870ff | 1153 | nvlist_t *thisdbg; |
34dc7c2f BB |
1154 | |
1155 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); | |
572e2857 | 1156 | assert(fromsnap_obj == 0 || !fromorigin); |
34dc7c2f BB |
1157 | |
1158 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
34dc7c2f BB |
1159 | zc.zc_cookie = outfd; |
1160 | zc.zc_obj = fromorigin; | |
572e2857 BB |
1161 | zc.zc_sendobj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID); |
1162 | zc.zc_fromobj = fromsnap_obj; | |
9b67f605 | 1163 | zc.zc_flags = flags; |
428870ff BB |
1164 | |
1165 | VERIFY(0 == nvlist_alloc(&thisdbg, NV_UNIQUE_NAME, 0)); | |
1166 | if (fromsnap && fromsnap[0] != '\0') { | |
1167 | VERIFY(0 == nvlist_add_string(thisdbg, | |
1168 | "fromsnap", fromsnap)); | |
1169 | } | |
1170 | ||
330d06f9 | 1171 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SEND, &zc) != 0) { |
34dc7c2f BB |
1172 | char errbuf[1024]; |
1173 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1174 | "warning: cannot send '%s'"), zhp->zfs_name); | |
1175 | ||
428870ff BB |
1176 | VERIFY(0 == nvlist_add_uint64(thisdbg, "error", errno)); |
1177 | if (debugnv) { | |
1178 | VERIFY(0 == nvlist_add_nvlist(debugnv, | |
1179 | zhp->zfs_name, thisdbg)); | |
1180 | } | |
1181 | nvlist_free(thisdbg); | |
1182 | ||
34dc7c2f | 1183 | switch (errno) { |
34dc7c2f BB |
1184 | case EXDEV: |
1185 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1186 | "not an earlier snapshot from the same fs")); | |
1187 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
1188 | ||
b5256303 TC |
1189 | case EACCES: |
1190 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1191 | "source key must be loaded")); | |
1192 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
1193 | ||
34dc7c2f BB |
1194 | case ENOENT: |
1195 | if (zfs_dataset_exists(hdl, zc.zc_name, | |
1196 | ZFS_TYPE_SNAPSHOT)) { | |
1197 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1198 | "incremental source (@%s) does not exist"), | |
1199 | zc.zc_value); | |
1200 | } | |
1201 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
1202 | ||
1203 | case EDQUOT: | |
1204 | case EFBIG: | |
1205 | case EIO: | |
1206 | case ENOLINK: | |
1207 | case ENOSPC: | |
1208 | case ENOSTR: | |
1209 | case ENXIO: | |
1210 | case EPIPE: | |
1211 | case ERANGE: | |
1212 | case EFAULT: | |
1213 | case EROFS: | |
1214 | zfs_error_aux(hdl, strerror(errno)); | |
1215 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); | |
1216 | ||
1217 | default: | |
1218 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1219 | } | |
1220 | } | |
1221 | ||
428870ff BB |
1222 | if (debugnv) |
1223 | VERIFY(0 == nvlist_add_nvlist(debugnv, zhp->zfs_name, thisdbg)); | |
1224 | nvlist_free(thisdbg); | |
1225 | ||
34dc7c2f BB |
1226 | return (0); |
1227 | } | |
1228 | ||
95fd54a1 SH |
1229 | static void |
1230 | gather_holds(zfs_handle_t *zhp, send_dump_data_t *sdd) | |
572e2857 | 1231 | { |
572e2857 BB |
1232 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); |
1233 | ||
1234 | /* | |
95fd54a1 | 1235 | * zfs_send() only sets snapholds for sends that need them, |
572e2857 BB |
1236 | * e.g. replication and doall. |
1237 | */ | |
95fd54a1 SH |
1238 | if (sdd->snapholds == NULL) |
1239 | return; | |
572e2857 | 1240 | |
95fd54a1 | 1241 | fnvlist_add_string(sdd->snapholds, zhp->zfs_name, sdd->holdtag); |
572e2857 BB |
1242 | } |
1243 | ||
30af21b0 PD |
1244 | int |
1245 | zfs_send_progress(zfs_handle_t *zhp, int fd, uint64_t *bytes_written, | |
1246 | uint64_t *blocks_visited) | |
1247 | { | |
1248 | zfs_cmd_t zc = { {0} }; | |
1249 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
1250 | zc.zc_cookie = fd; | |
1251 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SEND_PROGRESS, &zc) != 0) | |
1252 | return (errno); | |
1253 | if (bytes_written != NULL) | |
1254 | *bytes_written = zc.zc_cookie; | |
1255 | if (blocks_visited != NULL) | |
1256 | *blocks_visited = zc.zc_objset_type; | |
1257 | return (0); | |
1258 | } | |
1259 | ||
37abac6d BP |
1260 | static void * |
1261 | send_progress_thread(void *arg) | |
1262 | { | |
1263 | progress_arg_t *pa = arg; | |
37abac6d | 1264 | zfs_handle_t *zhp = pa->pa_zhp; |
30af21b0 PD |
1265 | uint64_t bytes; |
1266 | uint64_t blocks; | |
37abac6d | 1267 | char buf[16]; |
37abac6d BP |
1268 | time_t t; |
1269 | struct tm *tm; | |
30af21b0 | 1270 | boolean_t firstloop = B_TRUE; |
37abac6d BP |
1271 | |
1272 | /* | |
1273 | * Print the progress from ZFS_IOC_SEND_PROGRESS every second. | |
1274 | */ | |
1275 | for (;;) { | |
30af21b0 | 1276 | int err; |
37abac6d | 1277 | (void) sleep(1); |
30af21b0 PD |
1278 | if ((err = zfs_send_progress(zhp, pa->pa_fd, &bytes, |
1279 | &blocks)) != 0) { | |
1280 | if (err == EINTR || err == ENOENT) | |
1281 | return ((void *)0); | |
1282 | return ((void *)(uintptr_t)err); | |
1283 | } | |
37abac6d | 1284 | |
30af21b0 PD |
1285 | if (firstloop && !pa->pa_parsable) { |
1286 | (void) fprintf(stderr, | |
1287 | "TIME %s %sSNAPSHOT %s\n", | |
1288 | pa->pa_estimate ? "BYTES" : " SENT", | |
1289 | pa->pa_verbosity >= 2 ? " BLOCKS " : "", | |
1290 | zhp->zfs_name); | |
1291 | firstloop = B_FALSE; | |
1292 | } | |
37abac6d BP |
1293 | |
1294 | (void) time(&t); | |
1295 | tm = localtime(&t); | |
37abac6d | 1296 | |
30af21b0 PD |
1297 | if (pa->pa_verbosity >= 2 && pa->pa_parsable) { |
1298 | (void) fprintf(stderr, | |
1299 | "%02d:%02d:%02d\t%llu\t%llu\t%s\n", | |
1300 | tm->tm_hour, tm->tm_min, tm->tm_sec, | |
1301 | (u_longlong_t)bytes, (u_longlong_t)blocks, | |
1302 | zhp->zfs_name); | |
1303 | } else if (pa->pa_verbosity >= 2) { | |
1304 | zfs_nicenum(bytes, buf, sizeof (buf)); | |
1305 | (void) fprintf(stderr, | |
1306 | "%02d:%02d:%02d %5s %8llu %s\n", | |
1307 | tm->tm_hour, tm->tm_min, tm->tm_sec, | |
1308 | buf, (u_longlong_t)blocks, zhp->zfs_name); | |
1309 | } else if (pa->pa_parsable) { | |
37abac6d BP |
1310 | (void) fprintf(stderr, "%02d:%02d:%02d\t%llu\t%s\n", |
1311 | tm->tm_hour, tm->tm_min, tm->tm_sec, | |
30af21b0 | 1312 | (u_longlong_t)bytes, zhp->zfs_name); |
37abac6d | 1313 | } else { |
e7fbeb60 | 1314 | zfs_nicebytes(bytes, buf, sizeof (buf)); |
37abac6d BP |
1315 | (void) fprintf(stderr, "%02d:%02d:%02d %5s %s\n", |
1316 | tm->tm_hour, tm->tm_min, tm->tm_sec, | |
1317 | buf, zhp->zfs_name); | |
1318 | } | |
1319 | } | |
1320 | } | |
1321 | ||
47dfff3b MA |
1322 | static void |
1323 | send_print_verbose(FILE *fout, const char *tosnap, const char *fromsnap, | |
1324 | uint64_t size, boolean_t parsable) | |
1325 | { | |
1326 | if (parsable) { | |
1327 | if (fromsnap != NULL) { | |
1328 | (void) fprintf(fout, "incremental\t%s\t%s", | |
1329 | fromsnap, tosnap); | |
1330 | } else { | |
1331 | (void) fprintf(fout, "full\t%s", | |
1332 | tosnap); | |
1333 | } | |
1334 | } else { | |
1335 | if (fromsnap != NULL) { | |
1336 | if (strchr(fromsnap, '@') == NULL && | |
1337 | strchr(fromsnap, '#') == NULL) { | |
1338 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
1339 | "send from @%s to %s"), | |
1340 | fromsnap, tosnap); | |
1341 | } else { | |
1342 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
1343 | "send from %s to %s"), | |
1344 | fromsnap, tosnap); | |
1345 | } | |
1346 | } else { | |
1347 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
1348 | "full send of %s"), | |
1349 | tosnap); | |
1350 | } | |
1351 | } | |
1352 | ||
835db585 | 1353 | if (parsable) { |
1354 | (void) fprintf(fout, "\t%llu", | |
1355 | (longlong_t)size); | |
1356 | } else if (size != 0) { | |
1357 | char buf[16]; | |
1358 | zfs_nicebytes(size, buf, sizeof (buf)); | |
1359 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
1360 | " estimated size is %s"), buf); | |
47dfff3b MA |
1361 | } |
1362 | (void) fprintf(fout, "\n"); | |
1363 | } | |
1364 | ||
34dc7c2f BB |
1365 | static int |
1366 | dump_snapshot(zfs_handle_t *zhp, void *arg) | |
1367 | { | |
1368 | send_dump_data_t *sdd = arg; | |
37abac6d BP |
1369 | progress_arg_t pa = { 0 }; |
1370 | pthread_t tid; | |
572e2857 | 1371 | char *thissnap; |
2aa34383 | 1372 | enum lzc_send_flags flags = 0; |
34dc7c2f | 1373 | int err; |
330d06f9 | 1374 | boolean_t isfromsnap, istosnap, fromorigin; |
428870ff | 1375 | boolean_t exclude = B_FALSE; |
93f6d7e2 | 1376 | FILE *fout = sdd->std_out ? stdout : stderr; |
34dc7c2f | 1377 | |
95fd54a1 | 1378 | err = 0; |
34dc7c2f | 1379 | thissnap = strchr(zhp->zfs_name, '@') + 1; |
428870ff BB |
1380 | isfromsnap = (sdd->fromsnap != NULL && |
1381 | strcmp(sdd->fromsnap, thissnap) == 0); | |
34dc7c2f | 1382 | |
428870ff | 1383 | if (!sdd->seenfrom && isfromsnap) { |
95fd54a1 SH |
1384 | gather_holds(zhp, sdd); |
1385 | sdd->seenfrom = B_TRUE; | |
c9d61adb | 1386 | (void) strlcpy(sdd->prevsnap, thissnap, |
1387 | sizeof (sdd->prevsnap)); | |
95fd54a1 | 1388 | sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID); |
34dc7c2f | 1389 | zfs_close(zhp); |
95fd54a1 | 1390 | return (0); |
34dc7c2f BB |
1391 | } |
1392 | ||
1393 | if (sdd->seento || !sdd->seenfrom) { | |
1394 | zfs_close(zhp); | |
1395 | return (0); | |
1396 | } | |
1397 | ||
428870ff BB |
1398 | istosnap = (strcmp(sdd->tosnap, thissnap) == 0); |
1399 | if (istosnap) | |
1400 | sdd->seento = B_TRUE; | |
1401 | ||
2aa34383 DK |
1402 | if (sdd->large_block) |
1403 | flags |= LZC_SEND_FLAG_LARGE_BLOCK; | |
1404 | if (sdd->embed_data) | |
1405 | flags |= LZC_SEND_FLAG_EMBED_DATA; | |
1406 | if (sdd->compress) | |
1407 | flags |= LZC_SEND_FLAG_COMPRESS; | |
b5256303 TC |
1408 | if (sdd->raw) |
1409 | flags |= LZC_SEND_FLAG_RAW; | |
2aa34383 | 1410 | |
428870ff BB |
1411 | if (!sdd->doall && !isfromsnap && !istosnap) { |
1412 | if (sdd->replicate) { | |
1413 | char *snapname; | |
1414 | nvlist_t *snapprops; | |
1415 | /* | |
1416 | * Filter out all intermediate snapshots except origin | |
1417 | * snapshots needed to replicate clones. | |
1418 | */ | |
1419 | nvlist_t *nvfs = fsavl_find(sdd->fsavl, | |
1420 | zhp->zfs_dmustats.dds_guid, &snapname); | |
1421 | ||
1422 | VERIFY(0 == nvlist_lookup_nvlist(nvfs, | |
1423 | "snapprops", &snapprops)); | |
1424 | VERIFY(0 == nvlist_lookup_nvlist(snapprops, | |
1425 | thissnap, &snapprops)); | |
1426 | exclude = !nvlist_exists(snapprops, "is_clone_origin"); | |
1427 | } else { | |
1428 | exclude = B_TRUE; | |
1429 | } | |
1430 | } | |
1431 | ||
1432 | /* | |
1433 | * If a filter function exists, call it to determine whether | |
1434 | * this snapshot will be sent. | |
1435 | */ | |
1436 | if (exclude || (sdd->filter_cb != NULL && | |
1437 | sdd->filter_cb(zhp, sdd->filter_cb_arg) == B_FALSE)) { | |
1438 | /* | |
1439 | * This snapshot is filtered out. Don't send it, and don't | |
572e2857 | 1440 | * set prevsnap_obj, so it will be as if this snapshot didn't |
428870ff BB |
1441 | * exist, and the next accepted snapshot will be sent as |
1442 | * an incremental from the last accepted one, or as the | |
1443 | * first (and full) snapshot in the case of a replication, | |
1444 | * non-incremental send. | |
1445 | */ | |
1446 | zfs_close(zhp); | |
1447 | return (0); | |
1448 | } | |
1449 | ||
95fd54a1 | 1450 | gather_holds(zhp, sdd); |
330d06f9 MA |
1451 | fromorigin = sdd->prevsnap[0] == '\0' && |
1452 | (sdd->fromorigin || sdd->replicate); | |
1453 | ||
30af21b0 | 1454 | if (sdd->verbosity != 0) { |
47dfff3b | 1455 | uint64_t size = 0; |
cf7684bc | 1456 | char fromds[ZFS_MAX_DATASET_NAME_LEN]; |
330d06f9 | 1457 | |
cf7684bc | 1458 | if (sdd->prevsnap[0] != '\0') { |
1459 | (void) strlcpy(fromds, zhp->zfs_name, sizeof (fromds)); | |
1460 | *(strchr(fromds, '@') + 1) = '\0'; | |
1461 | (void) strlcat(fromds, sdd->prevsnap, sizeof (fromds)); | |
1462 | } | |
1463 | if (zfs_send_space(zhp, zhp->zfs_name, | |
1464 | sdd->prevsnap[0] ? fromds : NULL, flags, &size) != 0) { | |
1465 | size = 0; /* cannot estimate send space */ | |
1466 | } else { | |
1467 | send_print_verbose(fout, zhp->zfs_name, | |
1468 | sdd->prevsnap[0] ? sdd->prevsnap : NULL, | |
1469 | size, sdd->parsable); | |
1470 | } | |
47dfff3b | 1471 | sdd->size += size; |
34dc7c2f BB |
1472 | } |
1473 | ||
330d06f9 | 1474 | if (!sdd->dryrun) { |
37abac6d BP |
1475 | /* |
1476 | * If progress reporting is requested, spawn a new thread to | |
1477 | * poll ZFS_IOC_SEND_PROGRESS at a regular interval. | |
1478 | */ | |
1479 | if (sdd->progress) { | |
1480 | pa.pa_zhp = zhp; | |
1481 | pa.pa_fd = sdd->outfd; | |
1482 | pa.pa_parsable = sdd->parsable; | |
30af21b0 PD |
1483 | pa.pa_estimate = B_FALSE; |
1484 | pa.pa_verbosity = sdd->verbosity; | |
37abac6d BP |
1485 | |
1486 | if ((err = pthread_create(&tid, NULL, | |
23d70cde | 1487 | send_progress_thread, &pa)) != 0) { |
37abac6d BP |
1488 | zfs_close(zhp); |
1489 | return (err); | |
1490 | } | |
1491 | } | |
1492 | ||
330d06f9 | 1493 | err = dump_ioctl(zhp, sdd->prevsnap, sdd->prevsnap_obj, |
9b67f605 | 1494 | fromorigin, sdd->outfd, flags, sdd->debugnv); |
37abac6d BP |
1495 | |
1496 | if (sdd->progress) { | |
30af21b0 | 1497 | void *status = NULL; |
37abac6d | 1498 | (void) pthread_cancel(tid); |
30af21b0 PD |
1499 | (void) pthread_join(tid, &status); |
1500 | int error = (int)(uintptr_t)status; | |
1501 | if (error != 0 && status != PTHREAD_CANCELED) { | |
1502 | char errbuf[1024]; | |
1503 | (void) snprintf(errbuf, sizeof (errbuf), | |
1504 | dgettext(TEXT_DOMAIN, | |
1505 | "progress thread exited nonzero")); | |
1506 | return (zfs_standard_error(zhp->zfs_hdl, error, | |
1507 | errbuf)); | |
1508 | } | |
37abac6d | 1509 | } |
330d06f9 | 1510 | } |
34dc7c2f | 1511 | |
572e2857 BB |
1512 | (void) strcpy(sdd->prevsnap, thissnap); |
1513 | sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID); | |
34dc7c2f BB |
1514 | zfs_close(zhp); |
1515 | return (err); | |
1516 | } | |
1517 | ||
1518 | static int | |
1519 | dump_filesystem(zfs_handle_t *zhp, void *arg) | |
1520 | { | |
1521 | int rv = 0; | |
1522 | send_dump_data_t *sdd = arg; | |
1523 | boolean_t missingfrom = B_FALSE; | |
13fe0198 | 1524 | zfs_cmd_t zc = {"\0"}; |
4c0883fb | 1525 | uint64_t min_txg = 0, max_txg = 0; |
34dc7c2f BB |
1526 | |
1527 | (void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s", | |
1528 | zhp->zfs_name, sdd->tosnap); | |
b834b58a | 1529 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_STATS, &zc) != 0) { |
330d06f9 MA |
1530 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
1531 | "WARNING: could not send %s@%s: does not exist\n"), | |
34dc7c2f BB |
1532 | zhp->zfs_name, sdd->tosnap); |
1533 | sdd->err = B_TRUE; | |
1534 | return (0); | |
1535 | } | |
1536 | ||
1537 | if (sdd->replicate && sdd->fromsnap) { | |
1538 | /* | |
1539 | * If this fs does not have fromsnap, and we're doing | |
1540 | * recursive, we need to send a full stream from the | |
1541 | * beginning (or an incremental from the origin if this | |
1542 | * is a clone). If we're doing non-recursive, then let | |
1543 | * them get the error. | |
1544 | */ | |
1545 | (void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s", | |
1546 | zhp->zfs_name, sdd->fromsnap); | |
b834b58a | 1547 | if (zfs_ioctl(zhp->zfs_hdl, |
34dc7c2f BB |
1548 | ZFS_IOC_OBJSET_STATS, &zc) != 0) { |
1549 | missingfrom = B_TRUE; | |
1550 | } | |
1551 | } | |
1552 | ||
428870ff | 1553 | sdd->seenfrom = sdd->seento = sdd->prevsnap[0] = 0; |
572e2857 | 1554 | sdd->prevsnap_obj = 0; |
428870ff BB |
1555 | if (sdd->fromsnap == NULL || missingfrom) |
1556 | sdd->seenfrom = B_TRUE; | |
34dc7c2f | 1557 | |
4c0883fb | 1558 | |
f94b3cbf TC |
1559 | |
1560 | /* | |
1561 | * Iterate through all snapshots and process the ones we will be | |
1562 | * sending. If we only have a "from" and "to" snapshot to deal | |
1563 | * with, we can avoid iterating through all the other snapshots. | |
1564 | */ | |
1565 | if (sdd->doall || sdd->replicate || sdd->tosnap == NULL) { | |
1566 | if (!sdd->replicate && sdd->fromsnap != NULL) | |
1567 | min_txg = get_snap_txg(zhp->zfs_hdl, zhp->zfs_name, | |
1568 | sdd->fromsnap); | |
1569 | if (!sdd->replicate && sdd->tosnap != NULL) | |
1570 | max_txg = get_snap_txg(zhp->zfs_hdl, zhp->zfs_name, | |
1571 | sdd->tosnap); | |
1572 | rv = zfs_iter_snapshots_sorted(zhp, dump_snapshot, arg, | |
1573 | min_txg, max_txg); | |
1574 | } else { | |
1575 | char snapname[MAXPATHLEN] = { 0 }; | |
1576 | zfs_handle_t *snap; | |
1577 | ||
1578 | if (!sdd->seenfrom) { | |
f0ce0436 | 1579 | (void) snprintf(snapname, sizeof (snapname), |
f94b3cbf TC |
1580 | "%s@%s", zhp->zfs_name, sdd->fromsnap); |
1581 | snap = zfs_open(zhp->zfs_hdl, snapname, | |
1582 | ZFS_TYPE_SNAPSHOT); | |
1583 | if (snap != NULL) | |
1584 | rv = dump_snapshot(snap, sdd); | |
1585 | else | |
1586 | rv = -1; | |
1587 | } | |
1588 | ||
1589 | if (rv == 0) { | |
f0ce0436 | 1590 | (void) snprintf(snapname, sizeof (snapname), |
f94b3cbf TC |
1591 | "%s@%s", zhp->zfs_name, sdd->tosnap); |
1592 | snap = zfs_open(zhp->zfs_hdl, snapname, | |
1593 | ZFS_TYPE_SNAPSHOT); | |
1594 | if (snap != NULL) | |
1595 | rv = dump_snapshot(snap, sdd); | |
1596 | else | |
1597 | rv = -1; | |
1598 | } | |
1599 | } | |
1600 | ||
428870ff | 1601 | if (!sdd->seenfrom) { |
330d06f9 | 1602 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
428870ff | 1603 | "WARNING: could not send %s@%s:\n" |
330d06f9 | 1604 | "incremental source (%s@%s) does not exist\n"), |
428870ff BB |
1605 | zhp->zfs_name, sdd->tosnap, |
1606 | zhp->zfs_name, sdd->fromsnap); | |
1607 | sdd->err = B_TRUE; | |
1608 | } else if (!sdd->seento) { | |
1609 | if (sdd->fromsnap) { | |
330d06f9 | 1610 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
34dc7c2f | 1611 | "WARNING: could not send %s@%s:\n" |
428870ff | 1612 | "incremental source (%s@%s) " |
330d06f9 | 1613 | "is not earlier than it\n"), |
34dc7c2f BB |
1614 | zhp->zfs_name, sdd->tosnap, |
1615 | zhp->zfs_name, sdd->fromsnap); | |
34dc7c2f | 1616 | } else { |
330d06f9 MA |
1617 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
1618 | "WARNING: " | |
1619 | "could not send %s@%s: does not exist\n"), | |
428870ff | 1620 | zhp->zfs_name, sdd->tosnap); |
34dc7c2f | 1621 | } |
428870ff | 1622 | sdd->err = B_TRUE; |
34dc7c2f BB |
1623 | } |
1624 | ||
1625 | return (rv); | |
1626 | } | |
1627 | ||
1628 | static int | |
1629 | dump_filesystems(zfs_handle_t *rzhp, void *arg) | |
1630 | { | |
1631 | send_dump_data_t *sdd = arg; | |
1632 | nvpair_t *fspair; | |
1633 | boolean_t needagain, progress; | |
1634 | ||
1635 | if (!sdd->replicate) | |
1636 | return (dump_filesystem(rzhp, sdd)); | |
1637 | ||
428870ff BB |
1638 | /* Mark the clone origin snapshots. */ |
1639 | for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; | |
1640 | fspair = nvlist_next_nvpair(sdd->fss, fspair)) { | |
1641 | nvlist_t *nvfs; | |
1642 | uint64_t origin_guid = 0; | |
1643 | ||
1644 | VERIFY(0 == nvpair_value_nvlist(fspair, &nvfs)); | |
1645 | (void) nvlist_lookup_uint64(nvfs, "origin", &origin_guid); | |
1646 | if (origin_guid != 0) { | |
1647 | char *snapname; | |
1648 | nvlist_t *origin_nv = fsavl_find(sdd->fsavl, | |
1649 | origin_guid, &snapname); | |
1650 | if (origin_nv != NULL) { | |
1651 | nvlist_t *snapprops; | |
1652 | VERIFY(0 == nvlist_lookup_nvlist(origin_nv, | |
1653 | "snapprops", &snapprops)); | |
1654 | VERIFY(0 == nvlist_lookup_nvlist(snapprops, | |
1655 | snapname, &snapprops)); | |
1656 | VERIFY(0 == nvlist_add_boolean( | |
1657 | snapprops, "is_clone_origin")); | |
1658 | } | |
1659 | } | |
1660 | } | |
34dc7c2f BB |
1661 | again: |
1662 | needagain = progress = B_FALSE; | |
1663 | for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; | |
1664 | fspair = nvlist_next_nvpair(sdd->fss, fspair)) { | |
330d06f9 | 1665 | nvlist_t *fslist, *parent_nv; |
34dc7c2f BB |
1666 | char *fsname; |
1667 | zfs_handle_t *zhp; | |
1668 | int err; | |
1669 | uint64_t origin_guid = 0; | |
330d06f9 | 1670 | uint64_t parent_guid = 0; |
34dc7c2f BB |
1671 | |
1672 | VERIFY(nvpair_value_nvlist(fspair, &fslist) == 0); | |
1673 | if (nvlist_lookup_boolean(fslist, "sent") == 0) | |
1674 | continue; | |
1675 | ||
1676 | VERIFY(nvlist_lookup_string(fslist, "name", &fsname) == 0); | |
1677 | (void) nvlist_lookup_uint64(fslist, "origin", &origin_guid); | |
330d06f9 MA |
1678 | (void) nvlist_lookup_uint64(fslist, "parentfromsnap", |
1679 | &parent_guid); | |
1680 | ||
1681 | if (parent_guid != 0) { | |
1682 | parent_nv = fsavl_find(sdd->fsavl, parent_guid, NULL); | |
1683 | if (!nvlist_exists(parent_nv, "sent")) { | |
1684 | /* parent has not been sent; skip this one */ | |
1685 | needagain = B_TRUE; | |
1686 | continue; | |
1687 | } | |
1688 | } | |
34dc7c2f | 1689 | |
428870ff BB |
1690 | if (origin_guid != 0) { |
1691 | nvlist_t *origin_nv = fsavl_find(sdd->fsavl, | |
1692 | origin_guid, NULL); | |
1693 | if (origin_nv != NULL && | |
330d06f9 | 1694 | !nvlist_exists(origin_nv, "sent")) { |
428870ff BB |
1695 | /* |
1696 | * origin has not been sent yet; | |
1697 | * skip this clone. | |
1698 | */ | |
1699 | needagain = B_TRUE; | |
1700 | continue; | |
1701 | } | |
34dc7c2f BB |
1702 | } |
1703 | ||
1704 | zhp = zfs_open(rzhp->zfs_hdl, fsname, ZFS_TYPE_DATASET); | |
1705 | if (zhp == NULL) | |
1706 | return (-1); | |
1707 | err = dump_filesystem(zhp, sdd); | |
1708 | VERIFY(nvlist_add_boolean(fslist, "sent") == 0); | |
1709 | progress = B_TRUE; | |
1710 | zfs_close(zhp); | |
1711 | if (err) | |
1712 | return (err); | |
1713 | } | |
1714 | if (needagain) { | |
1715 | assert(progress); | |
1716 | goto again; | |
1717 | } | |
330d06f9 MA |
1718 | |
1719 | /* clean out the sent flags in case we reuse this fss */ | |
1720 | for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; | |
1721 | fspair = nvlist_next_nvpair(sdd->fss, fspair)) { | |
1722 | nvlist_t *fslist; | |
1723 | ||
1724 | VERIFY(nvpair_value_nvlist(fspair, &fslist) == 0); | |
1725 | (void) nvlist_remove_all(fslist, "sent"); | |
1726 | } | |
1727 | ||
34dc7c2f BB |
1728 | return (0); |
1729 | } | |
1730 | ||
47dfff3b MA |
1731 | nvlist_t * |
1732 | zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, const char *token) | |
1733 | { | |
1734 | unsigned int version; | |
1735 | int nread, i; | |
1736 | unsigned long long checksum, packed_len; | |
1737 | ||
1738 | /* | |
1739 | * Decode token header, which is: | |
1740 | * <token version>-<checksum of payload>-<uncompressed payload length> | |
1741 | * Note that the only supported token version is 1. | |
1742 | */ | |
1743 | nread = sscanf(token, "%u-%llx-%llx-", | |
1744 | &version, &checksum, &packed_len); | |
1745 | if (nread != 3) { | |
1746 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1747 | "resume token is corrupt (invalid format)")); | |
1748 | return (NULL); | |
1749 | } | |
1750 | ||
1751 | if (version != ZFS_SEND_RESUME_TOKEN_VERSION) { | |
1752 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1753 | "resume token is corrupt (invalid version %u)"), | |
1754 | version); | |
1755 | return (NULL); | |
1756 | } | |
1757 | ||
1758 | /* convert hexadecimal representation to binary */ | |
1759 | token = strrchr(token, '-') + 1; | |
1760 | int len = strlen(token) / 2; | |
1761 | unsigned char *compressed = zfs_alloc(hdl, len); | |
1762 | for (i = 0; i < len; i++) { | |
1763 | nread = sscanf(token + i * 2, "%2hhx", compressed + i); | |
1764 | if (nread != 1) { | |
1765 | free(compressed); | |
1766 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1767 | "resume token is corrupt " | |
1768 | "(payload is not hex-encoded)")); | |
1769 | return (NULL); | |
1770 | } | |
1771 | } | |
1772 | ||
1773 | /* verify checksum */ | |
1774 | zio_cksum_t cksum; | |
fc897b24 | 1775 | fletcher_4_native_varsize(compressed, len, &cksum); |
47dfff3b MA |
1776 | if (cksum.zc_word[0] != checksum) { |
1777 | free(compressed); | |
1778 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1779 | "resume token is corrupt (incorrect checksum)")); | |
1780 | return (NULL); | |
1781 | } | |
1782 | ||
1783 | /* uncompress */ | |
1784 | void *packed = zfs_alloc(hdl, packed_len); | |
1785 | uLongf packed_len_long = packed_len; | |
1786 | if (uncompress(packed, &packed_len_long, compressed, len) != Z_OK || | |
1787 | packed_len_long != packed_len) { | |
1788 | free(packed); | |
1789 | free(compressed); | |
1790 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1791 | "resume token is corrupt (decompression failed)")); | |
1792 | return (NULL); | |
1793 | } | |
1794 | ||
1795 | /* unpack nvlist */ | |
1796 | nvlist_t *nv; | |
1797 | int error = nvlist_unpack(packed, packed_len, &nv, KM_SLEEP); | |
1798 | free(packed); | |
1799 | free(compressed); | |
1800 | if (error != 0) { | |
1801 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1802 | "resume token is corrupt (nvlist_unpack failed)")); | |
1803 | return (NULL); | |
1804 | } | |
1805 | return (nv); | |
1806 | } | |
30af21b0 PD |
1807 | static enum lzc_send_flags |
1808 | lzc_flags_from_sendflags(const sendflags_t *flags) | |
1809 | { | |
1810 | enum lzc_send_flags lzc_flags = 0; | |
1811 | if (flags->largeblock) | |
1812 | lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; | |
1813 | if (flags->embed_data) | |
1814 | lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; | |
1815 | if (flags->compress) | |
1816 | lzc_flags |= LZC_SEND_FLAG_COMPRESS; | |
1817 | if (flags->raw) | |
1818 | lzc_flags |= LZC_SEND_FLAG_RAW; | |
ba0ba69e TC |
1819 | if (flags->saved) |
1820 | lzc_flags |= LZC_SEND_FLAG_SAVED; | |
30af21b0 PD |
1821 | return (lzc_flags); |
1822 | } | |
1823 | ||
1824 | static int | |
1825 | estimate_size(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags, | |
1826 | uint64_t resumeobj, uint64_t resumeoff, uint64_t bytes, | |
1827 | const char *redactbook, char *errbuf) | |
1828 | { | |
1829 | uint64_t size; | |
1830 | FILE *fout = flags->dryrun ? stdout : stderr; | |
1831 | progress_arg_t pa = { 0 }; | |
1832 | int err = 0; | |
1833 | pthread_t ptid; | |
1834 | ||
1835 | if (flags->progress) { | |
1836 | pa.pa_zhp = zhp; | |
1837 | pa.pa_fd = fd; | |
1838 | pa.pa_parsable = flags->parsable; | |
1839 | pa.pa_estimate = B_TRUE; | |
1840 | pa.pa_verbosity = flags->verbosity; | |
1841 | ||
1842 | err = pthread_create(&ptid, NULL, | |
1843 | send_progress_thread, &pa); | |
1844 | if (err != 0) { | |
1845 | zfs_error_aux(zhp->zfs_hdl, strerror(errno)); | |
1846 | return (zfs_error(zhp->zfs_hdl, | |
1847 | EZFS_THREADCREATEFAILED, errbuf)); | |
1848 | } | |
1849 | } | |
1850 | ||
1851 | err = lzc_send_space_resume_redacted(zhp->zfs_name, from, | |
1852 | lzc_flags_from_sendflags(flags), resumeobj, resumeoff, bytes, | |
1853 | redactbook, fd, &size); | |
1854 | ||
1855 | if (flags->progress) { | |
1856 | void *status = NULL; | |
1857 | (void) pthread_cancel(ptid); | |
1858 | (void) pthread_join(ptid, &status); | |
1859 | int error = (int)(uintptr_t)status; | |
1860 | if (error != 0 && status != PTHREAD_CANCELED) { | |
1861 | char errbuf[1024]; | |
1862 | (void) snprintf(errbuf, sizeof (errbuf), | |
1863 | dgettext(TEXT_DOMAIN, "progress thread exited " | |
1864 | "nonzero")); | |
1865 | return (zfs_standard_error(zhp->zfs_hdl, error, | |
1866 | errbuf)); | |
1867 | } | |
1868 | } | |
1869 | ||
1870 | if (err != 0) { | |
1871 | zfs_error_aux(zhp->zfs_hdl, strerror(err)); | |
1872 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, | |
1873 | errbuf)); | |
1874 | } | |
1875 | send_print_verbose(fout, zhp->zfs_name, from, size, | |
1876 | flags->parsable); | |
1877 | ||
1878 | if (flags->parsable) { | |
1879 | (void) fprintf(fout, "size\t%llu\n", (longlong_t)size); | |
1880 | } else { | |
1881 | char buf[16]; | |
1882 | zfs_nicenum(size, buf, sizeof (buf)); | |
1883 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
1884 | "total estimated size is %s\n"), buf); | |
1885 | } | |
1886 | return (0); | |
1887 | } | |
1888 | ||
1889 | static boolean_t | |
1890 | redact_snaps_contains(const uint64_t *snaps, uint64_t num_snaps, uint64_t guid) | |
1891 | { | |
1892 | for (int i = 0; i < num_snaps; i++) { | |
1893 | if (snaps[i] == guid) | |
1894 | return (B_TRUE); | |
1895 | } | |
1896 | return (B_FALSE); | |
1897 | } | |
1898 | ||
1899 | static boolean_t | |
1900 | redact_snaps_equal(const uint64_t *snaps1, uint64_t num_snaps1, | |
1901 | const uint64_t *snaps2, uint64_t num_snaps2) | |
1902 | { | |
1903 | if (num_snaps1 != num_snaps2) | |
1904 | return (B_FALSE); | |
1905 | for (int i = 0; i < num_snaps1; i++) { | |
1906 | if (!redact_snaps_contains(snaps2, num_snaps2, snaps1[i])) | |
1907 | return (B_FALSE); | |
1908 | } | |
1909 | return (B_TRUE); | |
1910 | } | |
1911 | ||
1912 | /* | |
1913 | * Check that the list of redaction snapshots in the bookmark matches the send | |
1914 | * we're resuming, and return whether or not it's complete. | |
1915 | * | |
1916 | * Note that the caller needs to free the contents of *bookname with free() if | |
1917 | * this function returns successfully. | |
1918 | */ | |
1919 | static int | |
1920 | find_redact_book(libzfs_handle_t *hdl, const char *path, | |
1921 | const uint64_t *redact_snap_guids, int num_redact_snaps, | |
1922 | char **bookname) | |
1923 | { | |
1924 | char errbuf[1024]; | |
1925 | int error = 0; | |
1926 | nvlist_t *props = fnvlist_alloc(); | |
1927 | nvlist_t *bmarks; | |
1928 | ||
1929 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1930 | "cannot resume send")); | |
1931 | ||
1932 | fnvlist_add_boolean(props, "redact_complete"); | |
1933 | fnvlist_add_boolean(props, zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS)); | |
1934 | error = lzc_get_bookmarks(path, props, &bmarks); | |
1935 | nvlist_free(props); | |
1936 | if (error != 0) { | |
1937 | if (error == ESRCH) { | |
1938 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1939 | "nonexistent redaction bookmark provided")); | |
1940 | } else if (error == ENOENT) { | |
1941 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1942 | "dataset to be sent no longer exists")); | |
1943 | } else { | |
1944 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1945 | "unknown error: %s"), strerror(error)); | |
1946 | } | |
1947 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1948 | } | |
1949 | nvpair_t *pair; | |
1950 | for (pair = nvlist_next_nvpair(bmarks, NULL); pair; | |
1951 | pair = nvlist_next_nvpair(bmarks, pair)) { | |
1952 | ||
1953 | nvlist_t *bmark = fnvpair_value_nvlist(pair); | |
1954 | nvlist_t *vallist = fnvlist_lookup_nvlist(bmark, | |
1955 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS)); | |
1956 | uint_t len = 0; | |
1957 | uint64_t *bmarksnaps = fnvlist_lookup_uint64_array(vallist, | |
1958 | ZPROP_VALUE, &len); | |
1959 | if (redact_snaps_equal(redact_snap_guids, | |
1960 | num_redact_snaps, bmarksnaps, len)) { | |
1961 | break; | |
1962 | } | |
1963 | } | |
1964 | if (pair == NULL) { | |
1965 | fnvlist_free(bmarks); | |
1966 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1967 | "no appropriate redaction bookmark exists")); | |
1968 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1969 | } | |
1970 | char *name = nvpair_name(pair); | |
1971 | nvlist_t *bmark = fnvpair_value_nvlist(pair); | |
1972 | nvlist_t *vallist = fnvlist_lookup_nvlist(bmark, "redact_complete"); | |
1973 | boolean_t complete = fnvlist_lookup_boolean_value(vallist, | |
1974 | ZPROP_VALUE); | |
1975 | if (!complete) { | |
1976 | fnvlist_free(bmarks); | |
1977 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1978 | "incomplete redaction bookmark provided")); | |
1979 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1980 | } | |
1981 | *bookname = strndup(name, ZFS_MAX_DATASET_NAME_LEN); | |
1982 | ASSERT3P(*bookname, !=, NULL); | |
1983 | fnvlist_free(bmarks); | |
1984 | return (0); | |
1985 | } | |
47dfff3b | 1986 | |
ba0ba69e TC |
1987 | static int |
1988 | zfs_send_resume_impl(libzfs_handle_t *hdl, sendflags_t *flags, int outfd, | |
1989 | nvlist_t *resume_nvl) | |
47dfff3b MA |
1990 | { |
1991 | char errbuf[1024]; | |
1992 | char *toname; | |
1993 | char *fromname = NULL; | |
1994 | uint64_t resumeobj, resumeoff, toguid, fromguid, bytes; | |
1995 | zfs_handle_t *zhp; | |
1996 | int error = 0; | |
eca7b760 | 1997 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
47dfff3b | 1998 | enum lzc_send_flags lzc_flags = 0; |
30af21b0 PD |
1999 | FILE *fout = (flags->verbosity > 0 && flags->dryrun) ? stdout : stderr; |
2000 | uint64_t *redact_snap_guids = NULL; | |
2001 | int num_redact_snaps = 0; | |
2002 | char *redact_book = NULL; | |
47dfff3b MA |
2003 | |
2004 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
2005 | "cannot resume send")); | |
2006 | ||
30af21b0 | 2007 | if (flags->verbosity != 0) { |
aee1dd4d | 2008 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
47dfff3b | 2009 | "resume token contents:\n")); |
aee1dd4d | 2010 | nvlist_print(fout, resume_nvl); |
47dfff3b MA |
2011 | } |
2012 | ||
2013 | if (nvlist_lookup_string(resume_nvl, "toname", &toname) != 0 || | |
2014 | nvlist_lookup_uint64(resume_nvl, "object", &resumeobj) != 0 || | |
2015 | nvlist_lookup_uint64(resume_nvl, "offset", &resumeoff) != 0 || | |
2016 | nvlist_lookup_uint64(resume_nvl, "bytes", &bytes) != 0 || | |
2017 | nvlist_lookup_uint64(resume_nvl, "toguid", &toguid) != 0) { | |
2018 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2019 | "resume token is corrupt")); | |
2020 | return (zfs_error(hdl, EZFS_FAULT, errbuf)); | |
2021 | } | |
2022 | fromguid = 0; | |
2023 | (void) nvlist_lookup_uint64(resume_nvl, "fromguid", &fromguid); | |
2024 | ||
2aa34383 DK |
2025 | if (flags->largeblock || nvlist_exists(resume_nvl, "largeblockok")) |
2026 | lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; | |
47dfff3b MA |
2027 | if (flags->embed_data || nvlist_exists(resume_nvl, "embedok")) |
2028 | lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; | |
2aa34383 DK |
2029 | if (flags->compress || nvlist_exists(resume_nvl, "compressok")) |
2030 | lzc_flags |= LZC_SEND_FLAG_COMPRESS; | |
b5256303 TC |
2031 | if (flags->raw || nvlist_exists(resume_nvl, "rawok")) |
2032 | lzc_flags |= LZC_SEND_FLAG_RAW; | |
ba0ba69e TC |
2033 | if (flags->saved || nvlist_exists(resume_nvl, "savedok")) |
2034 | lzc_flags |= LZC_SEND_FLAG_SAVED; | |
47dfff3b | 2035 | |
ba0ba69e TC |
2036 | if (flags->saved) { |
2037 | (void) strcpy(name, toname); | |
2038 | } else { | |
2039 | error = guid_to_name(hdl, toname, toguid, B_FALSE, name); | |
2040 | if (error != 0) { | |
2041 | if (zfs_dataset_exists(hdl, toname, ZFS_TYPE_DATASET)) { | |
2042 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2043 | "'%s' is no longer the same snapshot " | |
2044 | "used in the initial send"), toname); | |
2045 | } else { | |
2046 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2047 | "'%s' used in the initial send no " | |
2048 | "longer exists"), toname); | |
2049 | } | |
2050 | return (zfs_error(hdl, EZFS_BADPATH, errbuf)); | |
47dfff3b | 2051 | } |
47dfff3b | 2052 | } |
ba0ba69e | 2053 | |
47dfff3b MA |
2054 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); |
2055 | if (zhp == NULL) { | |
2056 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2057 | "unable to access '%s'"), name); | |
2058 | return (zfs_error(hdl, EZFS_BADPATH, errbuf)); | |
2059 | } | |
2060 | ||
30af21b0 PD |
2061 | if (nvlist_lookup_uint64_array(resume_nvl, "book_redact_snaps", |
2062 | &redact_snap_guids, (uint_t *)&num_redact_snaps) != 0) { | |
2063 | num_redact_snaps = -1; | |
2064 | } | |
2065 | ||
47dfff3b | 2066 | if (fromguid != 0) { |
30af21b0 PD |
2067 | if (guid_to_name_redact_snaps(hdl, toname, fromguid, B_TRUE, |
2068 | redact_snap_guids, num_redact_snaps, name) != 0) { | |
47dfff3b MA |
2069 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
2070 | "incremental source %#llx no longer exists"), | |
2071 | (longlong_t)fromguid); | |
2072 | return (zfs_error(hdl, EZFS_BADPATH, errbuf)); | |
2073 | } | |
2074 | fromname = name; | |
2075 | } | |
2076 | ||
30af21b0 PD |
2077 | redact_snap_guids = NULL; |
2078 | ||
2079 | if (nvlist_lookup_uint64_array(resume_nvl, | |
2080 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS), &redact_snap_guids, | |
2081 | (uint_t *)&num_redact_snaps) == 0) { | |
2082 | char path[ZFS_MAX_DATASET_NAME_LEN]; | |
2083 | ||
2084 | (void) strlcpy(path, toname, sizeof (path)); | |
2085 | char *at = strchr(path, '@'); | |
2086 | ASSERT3P(at, !=, NULL); | |
2087 | ||
2088 | *at = '\0'; | |
2089 | ||
2090 | if ((error = find_redact_book(hdl, path, redact_snap_guids, | |
2091 | num_redact_snaps, &redact_book)) != 0) { | |
2092 | return (error); | |
2093 | } | |
2094 | } | |
2095 | ||
2096 | if (flags->verbosity != 0) { | |
2097 | /* | |
2098 | * Some of these may have come from the resume token, set them | |
2099 | * here for size estimate purposes. | |
2100 | */ | |
2101 | sendflags_t tmpflags = *flags; | |
2102 | if (lzc_flags & LZC_SEND_FLAG_LARGE_BLOCK) | |
2103 | tmpflags.largeblock = B_TRUE; | |
2104 | if (lzc_flags & LZC_SEND_FLAG_COMPRESS) | |
2105 | tmpflags.compress = B_TRUE; | |
2106 | if (lzc_flags & LZC_SEND_FLAG_EMBED_DATA) | |
2107 | tmpflags.embed_data = B_TRUE; | |
2108 | error = estimate_size(zhp, fromname, outfd, &tmpflags, | |
2109 | resumeobj, resumeoff, bytes, redact_book, errbuf); | |
47dfff3b MA |
2110 | } |
2111 | ||
2112 | if (!flags->dryrun) { | |
2113 | progress_arg_t pa = { 0 }; | |
2114 | pthread_t tid; | |
2115 | /* | |
2116 | * If progress reporting is requested, spawn a new thread to | |
2117 | * poll ZFS_IOC_SEND_PROGRESS at a regular interval. | |
2118 | */ | |
2119 | if (flags->progress) { | |
2120 | pa.pa_zhp = zhp; | |
2121 | pa.pa_fd = outfd; | |
2122 | pa.pa_parsable = flags->parsable; | |
30af21b0 PD |
2123 | pa.pa_estimate = B_FALSE; |
2124 | pa.pa_verbosity = flags->verbosity; | |
47dfff3b MA |
2125 | |
2126 | error = pthread_create(&tid, NULL, | |
2127 | send_progress_thread, &pa); | |
2128 | if (error != 0) { | |
30af21b0 PD |
2129 | if (redact_book != NULL) |
2130 | free(redact_book); | |
47dfff3b MA |
2131 | zfs_close(zhp); |
2132 | return (error); | |
2133 | } | |
2134 | } | |
2135 | ||
30af21b0 PD |
2136 | error = lzc_send_resume_redacted(zhp->zfs_name, fromname, outfd, |
2137 | lzc_flags, resumeobj, resumeoff, redact_book); | |
2138 | if (redact_book != NULL) | |
2139 | free(redact_book); | |
47dfff3b MA |
2140 | |
2141 | if (flags->progress) { | |
30af21b0 | 2142 | void *status = NULL; |
47dfff3b | 2143 | (void) pthread_cancel(tid); |
30af21b0 PD |
2144 | (void) pthread_join(tid, &status); |
2145 | int error = (int)(uintptr_t)status; | |
2146 | if (error != 0 && status != PTHREAD_CANCELED) { | |
2147 | char errbuf[1024]; | |
2148 | (void) snprintf(errbuf, sizeof (errbuf), | |
2149 | dgettext(TEXT_DOMAIN, | |
2150 | "progress thread exited nonzero")); | |
2151 | return (zfs_standard_error(hdl, error, errbuf)); | |
2152 | } | |
47dfff3b MA |
2153 | } |
2154 | ||
2155 | char errbuf[1024]; | |
2156 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
2157 | "warning: cannot send '%s'"), zhp->zfs_name); | |
2158 | ||
2159 | zfs_close(zhp); | |
2160 | ||
2161 | switch (error) { | |
2162 | case 0: | |
2163 | return (0); | |
b5256303 TC |
2164 | case EACCES: |
2165 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2166 | "source key must be loaded")); | |
2167 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
30af21b0 PD |
2168 | case ESRCH: |
2169 | if (lzc_exists(zhp->zfs_name)) { | |
2170 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2171 | "incremental source could not be found")); | |
2172 | } | |
2173 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
b5256303 | 2174 | |
47dfff3b MA |
2175 | case EXDEV: |
2176 | case ENOENT: | |
2177 | case EDQUOT: | |
2178 | case EFBIG: | |
2179 | case EIO: | |
2180 | case ENOLINK: | |
2181 | case ENOSPC: | |
2182 | case ENOSTR: | |
2183 | case ENXIO: | |
2184 | case EPIPE: | |
2185 | case ERANGE: | |
2186 | case EFAULT: | |
2187 | case EROFS: | |
2188 | zfs_error_aux(hdl, strerror(errno)); | |
2189 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); | |
2190 | ||
2191 | default: | |
2192 | return (zfs_standard_error(hdl, errno, errbuf)); | |
2193 | } | |
30af21b0 PD |
2194 | } else { |
2195 | if (redact_book != NULL) | |
2196 | free(redact_book); | |
47dfff3b MA |
2197 | } |
2198 | ||
47dfff3b MA |
2199 | zfs_close(zhp); |
2200 | ||
2201 | return (error); | |
2202 | } | |
2203 | ||
ba0ba69e TC |
2204 | int |
2205 | zfs_send_resume(libzfs_handle_t *hdl, sendflags_t *flags, int outfd, | |
2206 | const char *resume_token) | |
2207 | { | |
2208 | int ret; | |
2209 | char errbuf[1024]; | |
2210 | nvlist_t *resume_nvl; | |
2211 | ||
2212 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
2213 | "cannot resume send")); | |
2214 | ||
2215 | resume_nvl = zfs_send_resume_token_to_nvlist(hdl, resume_token); | |
2216 | if (resume_nvl == NULL) { | |
2217 | /* | |
2218 | * zfs_error_aux has already been set by | |
2219 | * zfs_send_resume_token_to_nvlist() | |
2220 | */ | |
2221 | return (zfs_error(hdl, EZFS_FAULT, errbuf)); | |
2222 | } | |
2223 | ||
2224 | ret = zfs_send_resume_impl(hdl, flags, outfd, resume_nvl); | |
2225 | nvlist_free(resume_nvl); | |
2226 | ||
2227 | return (ret); | |
2228 | } | |
2229 | ||
2230 | int | |
2231 | zfs_send_saved(zfs_handle_t *zhp, sendflags_t *flags, int outfd, | |
2232 | const char *resume_token) | |
2233 | { | |
2234 | int ret; | |
2235 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
2236 | nvlist_t *saved_nvl = NULL, *resume_nvl = NULL; | |
2237 | uint64_t saved_guid = 0, resume_guid = 0; | |
2238 | uint64_t obj = 0, off = 0, bytes = 0; | |
2239 | char token_buf[ZFS_MAXPROPLEN]; | |
2240 | char errbuf[1024]; | |
2241 | ||
2242 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
2243 | "saved send failed")); | |
2244 | ||
2245 | ret = zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, | |
2246 | token_buf, sizeof (token_buf), NULL, NULL, 0, B_TRUE); | |
2247 | if (ret != 0) | |
2248 | goto out; | |
2249 | ||
2250 | saved_nvl = zfs_send_resume_token_to_nvlist(hdl, token_buf); | |
2251 | if (saved_nvl == NULL) { | |
2252 | /* | |
2253 | * zfs_error_aux has already been set by | |
2254 | * zfs_send_resume_token_to_nvlist() | |
2255 | */ | |
2256 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
2257 | goto out; | |
2258 | } | |
2259 | ||
2260 | /* | |
2261 | * If a resume token is provided we use the object and offset | |
2262 | * from that instead of the default, which starts from the | |
2263 | * beginning. | |
2264 | */ | |
2265 | if (resume_token != NULL) { | |
2266 | resume_nvl = zfs_send_resume_token_to_nvlist(hdl, | |
2267 | resume_token); | |
2268 | if (resume_nvl == NULL) { | |
2269 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
2270 | goto out; | |
2271 | } | |
2272 | ||
2273 | if (nvlist_lookup_uint64(resume_nvl, "object", &obj) != 0 || | |
2274 | nvlist_lookup_uint64(resume_nvl, "offset", &off) != 0 || | |
2275 | nvlist_lookup_uint64(resume_nvl, "bytes", &bytes) != 0 || | |
2276 | nvlist_lookup_uint64(resume_nvl, "toguid", | |
2277 | &resume_guid) != 0) { | |
2278 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2279 | "provided resume token is corrupt")); | |
2280 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
2281 | goto out; | |
2282 | } | |
2283 | ||
2284 | if (nvlist_lookup_uint64(saved_nvl, "toguid", | |
2285 | &saved_guid)) { | |
2286 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2287 | "dataset's resume token is corrupt")); | |
2288 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
2289 | goto out; | |
2290 | } | |
2291 | ||
2292 | if (resume_guid != saved_guid) { | |
2293 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2294 | "provided resume token does not match dataset")); | |
2295 | ret = zfs_error(hdl, EZFS_BADBACKUP, errbuf); | |
2296 | goto out; | |
2297 | } | |
2298 | } | |
2299 | ||
2300 | (void) nvlist_remove_all(saved_nvl, "object"); | |
2301 | fnvlist_add_uint64(saved_nvl, "object", obj); | |
2302 | ||
2303 | (void) nvlist_remove_all(saved_nvl, "offset"); | |
2304 | fnvlist_add_uint64(saved_nvl, "offset", off); | |
2305 | ||
2306 | (void) nvlist_remove_all(saved_nvl, "bytes"); | |
2307 | fnvlist_add_uint64(saved_nvl, "bytes", bytes); | |
2308 | ||
2309 | (void) nvlist_remove_all(saved_nvl, "toname"); | |
2310 | fnvlist_add_string(saved_nvl, "toname", zhp->zfs_name); | |
2311 | ||
2312 | ret = zfs_send_resume_impl(hdl, flags, outfd, saved_nvl); | |
2313 | ||
2314 | out: | |
2315 | nvlist_free(saved_nvl); | |
2316 | nvlist_free(resume_nvl); | |
2317 | return (ret); | |
2318 | } | |
2319 | ||
34dc7c2f | 2320 | /* |
30af21b0 PD |
2321 | * This function informs the target system that the recursive send is complete. |
2322 | * The record is also expected in the case of a send -p. | |
2323 | */ | |
2324 | static int | |
2325 | send_conclusion_record(int fd, zio_cksum_t *zc) | |
2326 | { | |
2327 | dmu_replay_record_t drr = { 0 }; | |
2328 | drr.drr_type = DRR_END; | |
2329 | if (zc != NULL) | |
2330 | drr.drr_u.drr_end.drr_checksum = *zc; | |
2331 | if (write(fd, &drr, sizeof (drr)) == -1) { | |
2332 | return (errno); | |
2333 | } | |
2334 | return (0); | |
2335 | } | |
2336 | ||
2337 | /* | |
2338 | * This function is responsible for sending the records that contain the | |
2339 | * necessary information for the target system's libzfs to be able to set the | |
2340 | * properties of the filesystem being received, or to be able to prepare for | |
2341 | * a recursive receive. | |
2342 | * | |
2343 | * The "zhp" argument is the handle of the snapshot we are sending | |
2344 | * (the "tosnap"). The "from" argument is the short snapshot name (the part | |
2345 | * after the @) of the incremental source. | |
2346 | */ | |
2347 | static int | |
2348 | send_prelim_records(zfs_handle_t *zhp, const char *from, int fd, | |
2349 | boolean_t gather_props, boolean_t recursive, boolean_t verbose, | |
2350 | boolean_t dryrun, boolean_t raw, boolean_t replicate, boolean_t backup, | |
2351 | boolean_t holds, boolean_t props, boolean_t doall, | |
2352 | nvlist_t **fssp, avl_tree_t **fsavlp) | |
2353 | { | |
2354 | int err = 0; | |
2355 | char *packbuf = NULL; | |
2356 | size_t buflen = 0; | |
2357 | zio_cksum_t zc = { {0} }; | |
2358 | int featureflags = 0; | |
2359 | /* name of filesystem/volume that contains snapshot we are sending */ | |
2360 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; | |
2361 | /* short name of snap we are sending */ | |
2362 | char *tosnap = ""; | |
2363 | ||
2364 | char errbuf[1024]; | |
2365 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
2366 | "warning: cannot send '%s'"), zhp->zfs_name); | |
2367 | if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && zfs_prop_get_int(zhp, | |
2368 | ZFS_PROP_VERSION) >= ZPL_VERSION_SA) { | |
2369 | featureflags |= DMU_BACKUP_FEATURE_SA_SPILL; | |
2370 | } | |
2371 | ||
2372 | if (holds) | |
2373 | featureflags |= DMU_BACKUP_FEATURE_HOLDS; | |
2374 | ||
2375 | (void) strlcpy(tofs, zhp->zfs_name, ZFS_MAX_DATASET_NAME_LEN); | |
2376 | char *at = strchr(tofs, '@'); | |
2377 | if (at != NULL) { | |
2378 | *at = '\0'; | |
2379 | tosnap = at + 1; | |
2380 | } | |
2381 | ||
2382 | if (gather_props) { | |
2383 | nvlist_t *hdrnv = fnvlist_alloc(); | |
2384 | nvlist_t *fss = NULL; | |
2385 | ||
2386 | if (from != NULL) | |
2387 | fnvlist_add_string(hdrnv, "fromsnap", from); | |
2388 | fnvlist_add_string(hdrnv, "tosnap", tosnap); | |
2389 | if (!recursive) | |
2390 | fnvlist_add_boolean(hdrnv, "not_recursive"); | |
2391 | ||
2392 | if (raw) { | |
2393 | VERIFY0(nvlist_add_boolean(hdrnv, "raw")); | |
2394 | } | |
2395 | ||
2396 | if ((err = gather_nvlist(zhp->zfs_hdl, tofs, | |
2397 | from, tosnap, recursive, raw, doall, replicate, verbose, | |
2398 | backup, holds, props, &fss, fsavlp)) != 0) { | |
2399 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, | |
2400 | errbuf)); | |
2401 | } | |
2402 | fnvlist_add_nvlist(hdrnv, "fss", fss); | |
2403 | VERIFY0(nvlist_pack(hdrnv, &packbuf, &buflen, NV_ENCODE_XDR, | |
2404 | 0)); | |
2405 | if (fssp != NULL) { | |
2406 | *fssp = fss; | |
2407 | } else { | |
2408 | nvlist_free(fss); | |
2409 | } | |
2410 | nvlist_free(hdrnv); | |
2411 | } | |
2412 | ||
2413 | if (!dryrun) { | |
2414 | dmu_replay_record_t drr = { 0 }; | |
2415 | /* write first begin record */ | |
2416 | drr.drr_type = DRR_BEGIN; | |
2417 | drr.drr_u.drr_begin.drr_magic = DMU_BACKUP_MAGIC; | |
2418 | DMU_SET_STREAM_HDRTYPE(drr.drr_u.drr_begin. | |
2419 | drr_versioninfo, DMU_COMPOUNDSTREAM); | |
2420 | DMU_SET_FEATUREFLAGS(drr.drr_u.drr_begin. | |
2421 | drr_versioninfo, featureflags); | |
2422 | if (snprintf(drr.drr_u.drr_begin.drr_toname, | |
2423 | sizeof (drr.drr_u.drr_begin.drr_toname), "%s@%s", tofs, | |
2424 | tosnap) >= sizeof (drr.drr_u.drr_begin.drr_toname)) { | |
2425 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, | |
2426 | errbuf)); | |
2427 | } | |
2428 | drr.drr_payloadlen = buflen; | |
2429 | ||
2430 | err = dump_record(&drr, packbuf, buflen, &zc, fd); | |
2431 | free(packbuf); | |
2432 | if (err != 0) { | |
2433 | zfs_error_aux(zhp->zfs_hdl, strerror(err)); | |
2434 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, | |
2435 | errbuf)); | |
2436 | } | |
2437 | err = send_conclusion_record(fd, &zc); | |
2438 | if (err != 0) { | |
2439 | zfs_error_aux(zhp->zfs_hdl, strerror(err)); | |
2440 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, | |
2441 | errbuf)); | |
2442 | } | |
2443 | } | |
2444 | return (0); | |
2445 | } | |
2446 | ||
2447 | /* | |
2448 | * Generate a send stream. The "zhp" argument is the filesystem/volume | |
2449 | * that contains the snapshot to send. The "fromsnap" argument is the | |
2450 | * short name (the part after the '@') of the snapshot that is the | |
2451 | * incremental source to send from (if non-NULL). The "tosnap" argument | |
2452 | * is the short name of the snapshot to send. | |
45d1cae3 BB |
2453 | * |
2454 | * The content of the send stream is the snapshot identified by | |
2455 | * 'tosnap'. Incremental streams are requested in two ways: | |
2456 | * - from the snapshot identified by "fromsnap" (if non-null) or | |
2457 | * - from the origin of the dataset identified by zhp, which must | |
2458 | * be a clone. In this case, "fromsnap" is null and "fromorigin" | |
2459 | * is TRUE. | |
2460 | * | |
2461 | * The send stream is recursive (i.e. dumps a hierarchy of snapshots) and | |
428870ff | 2462 | * uses a special header (with a hdrtype field of DMU_COMPOUNDSTREAM) |
45d1cae3 | 2463 | * if "replicate" is set. If "doall" is set, dump all the intermediate |
428870ff BB |
2464 | * snapshots. The DMU_COMPOUNDSTREAM header is used in the "doall" |
2465 | * case too. If "props" is set, send properties. | |
34dc7c2f BB |
2466 | */ |
2467 | int | |
2468 | zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, | |
330d06f9 | 2469 | sendflags_t *flags, int outfd, snapfilter_cb_t filter_func, |
428870ff | 2470 | void *cb_arg, nvlist_t **debugnvp) |
34dc7c2f BB |
2471 | { |
2472 | char errbuf[1024]; | |
2473 | send_dump_data_t sdd = { 0 }; | |
330d06f9 | 2474 | int err = 0; |
34dc7c2f BB |
2475 | nvlist_t *fss = NULL; |
2476 | avl_tree_t *fsavl = NULL; | |
428870ff BB |
2477 | static uint64_t holdseq; |
2478 | int spa_version; | |
95fd54a1 | 2479 | pthread_t tid = 0; |
428870ff BB |
2480 | int pipefd[2]; |
2481 | dedup_arg_t dda = { 0 }; | |
2482 | int featureflags = 0; | |
93f6d7e2 | 2483 | FILE *fout; |
428870ff | 2484 | |
34dc7c2f BB |
2485 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
2486 | "cannot send '%s'"), zhp->zfs_name); | |
2487 | ||
2488 | if (fromsnap && fromsnap[0] == '\0') { | |
2489 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
2490 | "zero-length incremental source")); | |
2491 | return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); | |
2492 | } | |
2493 | ||
572e2857 BB |
2494 | if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM) { |
2495 | uint64_t version; | |
2496 | version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); | |
2497 | if (version >= ZPL_VERSION_SA) { | |
2498 | featureflags |= DMU_BACKUP_FEATURE_SA_SPILL; | |
2499 | } | |
2500 | } | |
2501 | ||
9c5e88b1 PZ |
2502 | if (flags->holds) |
2503 | featureflags |= DMU_BACKUP_FEATURE_HOLDS; | |
2504 | ||
b5256303 TC |
2505 | /* |
2506 | * Start the dedup thread if this is a dedup stream. We do not bother | |
2507 | * doing this if this a raw send of an encrypted dataset with dedup off | |
2508 | * because normal encrypted blocks won't dedup. | |
2509 | */ | |
2510 | if (flags->dedup && !flags->dryrun && !(flags->raw && | |
2511 | zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != ZIO_CRYPT_OFF && | |
2512 | zfs_prop_get_int(zhp, ZFS_PROP_DEDUP) == ZIO_CHECKSUM_OFF)) { | |
428870ff BB |
2513 | featureflags |= (DMU_BACKUP_FEATURE_DEDUP | |
2514 | DMU_BACKUP_FEATURE_DEDUPPROPS); | |
23d70cde | 2515 | if ((err = socketpair(AF_UNIX, SOCK_STREAM, 0, pipefd)) != 0) { |
428870ff BB |
2516 | zfs_error_aux(zhp->zfs_hdl, strerror(errno)); |
2517 | return (zfs_error(zhp->zfs_hdl, EZFS_PIPEFAILED, | |
2518 | errbuf)); | |
2519 | } | |
2520 | dda.outputfd = outfd; | |
2521 | dda.inputfd = pipefd[1]; | |
2522 | dda.dedup_hdl = zhp->zfs_hdl; | |
23d70cde | 2523 | if ((err = pthread_create(&tid, NULL, cksummer, &dda)) != 0) { |
428870ff BB |
2524 | (void) close(pipefd[0]); |
2525 | (void) close(pipefd[1]); | |
2526 | zfs_error_aux(zhp->zfs_hdl, strerror(errno)); | |
2527 | return (zfs_error(zhp->zfs_hdl, | |
2528 | EZFS_THREADCREATEFAILED, errbuf)); | |
2529 | } | |
2530 | } | |
2531 | ||
9c5e88b1 PZ |
2532 | if (flags->replicate || flags->doall || flags->props || |
2533 | flags->holds || flags->backup) { | |
30af21b0 PD |
2534 | char full_tosnap_name[ZFS_MAX_DATASET_NAME_LEN]; |
2535 | if (snprintf(full_tosnap_name, sizeof (full_tosnap_name), | |
2536 | "%s@%s", zhp->zfs_name, tosnap) >= | |
2537 | sizeof (full_tosnap_name)) { | |
2538 | err = EINVAL; | |
2539 | goto stderr_out; | |
34dc7c2f | 2540 | } |
30af21b0 PD |
2541 | zfs_handle_t *tosnap = zfs_open(zhp->zfs_hdl, |
2542 | full_tosnap_name, ZFS_TYPE_SNAPSHOT); | |
1d20b763 | 2543 | if (tosnap == NULL) { |
2544 | err = -1; | |
2545 | goto err_out; | |
2546 | } | |
30af21b0 PD |
2547 | err = send_prelim_records(tosnap, fromsnap, outfd, |
2548 | flags->replicate || flags->props || flags->holds, | |
2549 | flags->replicate, flags->verbosity > 0, flags->dryrun, | |
2550 | flags->raw, flags->replicate, flags->backup, flags->holds, | |
2551 | flags->props, flags->doall, &fss, &fsavl); | |
2552 | zfs_close(tosnap); | |
2553 | if (err != 0) | |
2554 | goto err_out; | |
34dc7c2f BB |
2555 | } |
2556 | ||
2557 | /* dump each stream */ | |
2558 | sdd.fromsnap = fromsnap; | |
2559 | sdd.tosnap = tosnap; | |
95fd54a1 | 2560 | if (tid != 0) |
428870ff BB |
2561 | sdd.outfd = pipefd[0]; |
2562 | else | |
2563 | sdd.outfd = outfd; | |
330d06f9 MA |
2564 | sdd.replicate = flags->replicate; |
2565 | sdd.doall = flags->doall; | |
2566 | sdd.fromorigin = flags->fromorigin; | |
34dc7c2f BB |
2567 | sdd.fss = fss; |
2568 | sdd.fsavl = fsavl; | |
30af21b0 | 2569 | sdd.verbosity = flags->verbosity; |
330d06f9 | 2570 | sdd.parsable = flags->parsable; |
37abac6d | 2571 | sdd.progress = flags->progress; |
330d06f9 | 2572 | sdd.dryrun = flags->dryrun; |
f1512ee6 | 2573 | sdd.large_block = flags->largeblock; |
9b67f605 | 2574 | sdd.embed_data = flags->embed_data; |
2aa34383 | 2575 | sdd.compress = flags->compress; |
b5256303 | 2576 | sdd.raw = flags->raw; |
9c5e88b1 | 2577 | sdd.holds = flags->holds; |
428870ff BB |
2578 | sdd.filter_cb = filter_func; |
2579 | sdd.filter_cb_arg = cb_arg; | |
2580 | if (debugnvp) | |
2581 | sdd.debugnv = *debugnvp; | |
30af21b0 | 2582 | if (sdd.verbosity != 0 && sdd.dryrun) |
93f6d7e2 MJ |
2583 | sdd.std_out = B_TRUE; |
2584 | fout = sdd.std_out ? stdout : stderr; | |
e956d651 CS |
2585 | |
2586 | /* | |
2587 | * Some flags require that we place user holds on the datasets that are | |
2588 | * being sent so they don't get destroyed during the send. We can skip | |
2589 | * this step if the pool is imported read-only since the datasets cannot | |
2590 | * be destroyed. | |
2591 | */ | |
2592 | if (!flags->dryrun && !zpool_get_prop_int(zfs_get_pool_handle(zhp), | |
2593 | ZPOOL_PROP_READONLY, NULL) && | |
2594 | zfs_spa_version(zhp, &spa_version) == 0 && | |
2595 | spa_version >= SPA_VERSION_USERREFS && | |
2596 | (flags->doall || flags->replicate)) { | |
572e2857 BB |
2597 | ++holdseq; |
2598 | (void) snprintf(sdd.holdtag, sizeof (sdd.holdtag), | |
2599 | ".send-%d-%llu", getpid(), (u_longlong_t)holdseq); | |
d32eff3a | 2600 | sdd.cleanup_fd = open(ZFS_DEV, O_RDWR); |
572e2857 BB |
2601 | if (sdd.cleanup_fd < 0) { |
2602 | err = errno; | |
2603 | goto stderr_out; | |
2604 | } | |
95fd54a1 | 2605 | sdd.snapholds = fnvlist_alloc(); |
572e2857 BB |
2606 | } else { |
2607 | sdd.cleanup_fd = -1; | |
95fd54a1 | 2608 | sdd.snapholds = NULL; |
572e2857 | 2609 | } |
9c5e88b1 | 2610 | |
30af21b0 | 2611 | if (flags->verbosity != 0 || sdd.snapholds != NULL) { |
330d06f9 MA |
2612 | /* |
2613 | * Do a verbose no-op dry run to get all the verbose output | |
95fd54a1 SH |
2614 | * or to gather snapshot hold's before generating any data, |
2615 | * then do a non-verbose real run to generate the streams. | |
330d06f9 MA |
2616 | */ |
2617 | sdd.dryrun = B_TRUE; | |
2618 | err = dump_filesystems(zhp, &sdd); | |
95fd54a1 SH |
2619 | |
2620 | if (err != 0) | |
2621 | goto stderr_out; | |
2622 | ||
30af21b0 | 2623 | if (flags->verbosity != 0) { |
95fd54a1 | 2624 | if (flags->parsable) { |
93f6d7e2 | 2625 | (void) fprintf(fout, "size\t%llu\n", |
95fd54a1 SH |
2626 | (longlong_t)sdd.size); |
2627 | } else { | |
2628 | char buf[16]; | |
e7fbeb60 | 2629 | zfs_nicebytes(sdd.size, buf, sizeof (buf)); |
93f6d7e2 | 2630 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
95fd54a1 SH |
2631 | "total estimated size is %s\n"), buf); |
2632 | } | |
330d06f9 | 2633 | } |
95fd54a1 SH |
2634 | |
2635 | /* Ensure no snaps found is treated as an error. */ | |
2636 | if (!sdd.seento) { | |
2637 | err = ENOENT; | |
2638 | goto err_out; | |
2639 | } | |
2640 | ||
2641 | /* Skip the second run if dryrun was requested. */ | |
2642 | if (flags->dryrun) | |
2643 | goto err_out; | |
2644 | ||
2645 | if (sdd.snapholds != NULL) { | |
2646 | err = zfs_hold_nvl(zhp, sdd.cleanup_fd, sdd.snapholds); | |
2647 | if (err != 0) | |
2648 | goto stderr_out; | |
2649 | ||
2650 | fnvlist_free(sdd.snapholds); | |
2651 | sdd.snapholds = NULL; | |
2652 | } | |
2653 | ||
2654 | sdd.dryrun = B_FALSE; | |
30af21b0 | 2655 | sdd.verbosity = 0; |
330d06f9 | 2656 | } |
95fd54a1 | 2657 | |
34dc7c2f BB |
2658 | err = dump_filesystems(zhp, &sdd); |
2659 | fsavl_destroy(fsavl); | |
2660 | nvlist_free(fss); | |
2661 | ||
95fd54a1 SH |
2662 | /* Ensure no snaps found is treated as an error. */ |
2663 | if (err == 0 && !sdd.seento) | |
2664 | err = ENOENT; | |
2665 | ||
2666 | if (tid != 0) { | |
2667 | if (err != 0) | |
2668 | (void) pthread_cancel(tid); | |
95fd54a1 | 2669 | (void) close(pipefd[0]); |
6389d422 | 2670 | (void) pthread_join(tid, NULL); |
428870ff BB |
2671 | } |
2672 | ||
572e2857 BB |
2673 | if (sdd.cleanup_fd != -1) { |
2674 | VERIFY(0 == close(sdd.cleanup_fd)); | |
2675 | sdd.cleanup_fd = -1; | |
2676 | } | |
2677 | ||
330d06f9 | 2678 | if (!flags->dryrun && (flags->replicate || flags->doall || |
9c5e88b1 | 2679 | flags->props || flags->backup || flags->holds)) { |
34dc7c2f BB |
2680 | /* |
2681 | * write final end record. NB: want to do this even if | |
2682 | * there was some error, because it might not be totally | |
2683 | * failed. | |
2684 | */ | |
30af21b0 PD |
2685 | err = send_conclusion_record(outfd, NULL); |
2686 | if (err != 0) | |
2687 | return (zfs_standard_error(zhp->zfs_hdl, err, errbuf)); | |
34dc7c2f BB |
2688 | } |
2689 | ||
2690 | return (err || sdd.err); | |
428870ff BB |
2691 | |
2692 | stderr_out: | |
2693 | err = zfs_standard_error(zhp->zfs_hdl, err, errbuf); | |
2694 | err_out: | |
95fd54a1 SH |
2695 | fsavl_destroy(fsavl); |
2696 | nvlist_free(fss); | |
2697 | fnvlist_free(sdd.snapholds); | |
2698 | ||
572e2857 BB |
2699 | if (sdd.cleanup_fd != -1) |
2700 | VERIFY(0 == close(sdd.cleanup_fd)); | |
95fd54a1 | 2701 | if (tid != 0) { |
428870ff | 2702 | (void) pthread_cancel(tid); |
428870ff | 2703 | (void) close(pipefd[0]); |
6389d422 | 2704 | (void) pthread_join(tid, NULL); |
428870ff BB |
2705 | } |
2706 | return (err); | |
34dc7c2f BB |
2707 | } |
2708 | ||
30af21b0 PD |
2709 | static int |
2710 | get_dedup_fd(zfs_handle_t *zhp, dedup_arg_t *dda, int fd, pthread_t *tid, | |
2711 | int *outfd) | |
2712 | { | |
2713 | int pipefd[2]; | |
2714 | char errbuf[1024]; | |
2715 | int err; | |
2716 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
2717 | "warning: cannot send '%s'"), zhp->zfs_name); | |
2718 | if ((err = socketpair(AF_UNIX, SOCK_STREAM, 0, pipefd)) != 0) { | |
2719 | zfs_error_aux(zhp->zfs_hdl, strerror(errno)); | |
2720 | return (zfs_error(zhp->zfs_hdl, EZFS_PIPEFAILED, | |
2721 | errbuf)); | |
2722 | } | |
2723 | dda->outputfd = fd; | |
2724 | dda->inputfd = pipefd[1]; | |
2725 | dda->dedup_hdl = zhp->zfs_hdl; | |
2726 | if ((err = pthread_create(tid, NULL, cksummer, dda)) != 0) { | |
2727 | (void) close(pipefd[0]); | |
2728 | (void) close(pipefd[1]); | |
2729 | zfs_error_aux(zhp->zfs_hdl, strerror(err)); | |
2730 | return (zfs_error(zhp->zfs_hdl, EZFS_THREADCREATEFAILED, | |
2731 | errbuf)); | |
2732 | } | |
2733 | *outfd = pipefd[0]; | |
2734 | return (0); | |
2735 | } | |
2736 | ||
2737 | zfs_handle_t * | |
2738 | name_to_dir_handle(libzfs_handle_t *hdl, const char *snapname) | |
2739 | { | |
2740 | char dirname[ZFS_MAX_DATASET_NAME_LEN]; | |
2741 | (void) strlcpy(dirname, snapname, ZFS_MAX_DATASET_NAME_LEN); | |
2742 | char *c = strchr(dirname, '@'); | |
2743 | if (c != NULL) | |
2744 | *c = '\0'; | |
2745 | return (zfs_open(hdl, dirname, ZFS_TYPE_DATASET)); | |
2746 | } | |
2747 | ||
2748 | /* | |
2749 | * Returns B_TRUE if earlier is an earlier snapshot in later's timeline; either | |
2750 | * an earlier snapshot in the same filesystem, or a snapshot before later's | |
2751 | * origin, or it's origin's origin, etc. | |
2752 | */ | |
2753 | static boolean_t | |
2754 | snapshot_is_before(zfs_handle_t *earlier, zfs_handle_t *later) | |
2755 | { | |
2756 | boolean_t ret; | |
2757 | uint64_t later_txg = | |
2758 | (later->zfs_type == ZFS_TYPE_FILESYSTEM || | |
2759 | later->zfs_type == ZFS_TYPE_VOLUME ? | |
2760 | UINT64_MAX : zfs_prop_get_int(later, ZFS_PROP_CREATETXG)); | |
2761 | uint64_t earlier_txg = zfs_prop_get_int(earlier, ZFS_PROP_CREATETXG); | |
2762 | ||
2763 | if (earlier_txg >= later_txg) | |
2764 | return (B_FALSE); | |
2765 | ||
2766 | zfs_handle_t *earlier_dir = name_to_dir_handle(earlier->zfs_hdl, | |
2767 | earlier->zfs_name); | |
2768 | zfs_handle_t *later_dir = name_to_dir_handle(later->zfs_hdl, | |
2769 | later->zfs_name); | |
2770 | ||
2771 | if (strcmp(earlier_dir->zfs_name, later_dir->zfs_name) == 0) { | |
2772 | zfs_close(earlier_dir); | |
2773 | zfs_close(later_dir); | |
2774 | return (B_TRUE); | |
2775 | } | |
2776 | ||
2777 | char clonename[ZFS_MAX_DATASET_NAME_LEN]; | |
2778 | if (zfs_prop_get(later_dir, ZFS_PROP_ORIGIN, clonename, | |
2779 | ZFS_MAX_DATASET_NAME_LEN, NULL, NULL, 0, B_TRUE) != 0) { | |
2780 | zfs_close(earlier_dir); | |
2781 | zfs_close(later_dir); | |
2782 | return (B_FALSE); | |
2783 | } | |
2784 | ||
2785 | zfs_handle_t *origin = zfs_open(earlier->zfs_hdl, clonename, | |
2786 | ZFS_TYPE_DATASET); | |
2787 | uint64_t origin_txg = zfs_prop_get_int(origin, ZFS_PROP_CREATETXG); | |
2788 | ||
2789 | /* | |
2790 | * If "earlier" is exactly the origin, then | |
2791 | * snapshot_is_before(earlier, origin) will return false (because | |
2792 | * they're the same). | |
2793 | */ | |
2794 | if (origin_txg == earlier_txg && | |
2795 | strcmp(origin->zfs_name, earlier->zfs_name) == 0) { | |
2796 | zfs_close(earlier_dir); | |
2797 | zfs_close(later_dir); | |
2798 | zfs_close(origin); | |
2799 | return (B_TRUE); | |
2800 | } | |
2801 | zfs_close(earlier_dir); | |
2802 | zfs_close(later_dir); | |
2803 | ||
2804 | ret = snapshot_is_before(earlier, origin); | |
2805 | zfs_close(origin); | |
2806 | return (ret); | |
2807 | } | |
2808 | ||
2809 | /* | |
2810 | * The "zhp" argument is the handle of the dataset to send (typically a | |
2811 | * snapshot). The "from" argument is the full name of the snapshot or | |
2812 | * bookmark that is the incremental source. | |
2813 | */ | |
da536844 | 2814 | int |
30af21b0 PD |
2815 | zfs_send_one(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags, |
2816 | const char *redactbook) | |
da536844 | 2817 | { |
30af21b0 | 2818 | int err; |
da536844 | 2819 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
22df2457 | 2820 | char *name = zhp->zfs_name; |
30af21b0 PD |
2821 | int orig_fd = fd; |
2822 | pthread_t ddtid, ptid; | |
2823 | progress_arg_t pa = { 0 }; | |
2824 | dedup_arg_t dda = { 0 }; | |
2825 | ||
da536844 | 2826 | char errbuf[1024]; |
30af21b0 | 2827 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
22df2457 | 2828 | "warning: cannot send '%s'"), name); |
835db585 | 2829 | |
30af21b0 PD |
2830 | if (from != NULL && strchr(from, '@')) { |
2831 | zfs_handle_t *from_zhp = zfs_open(hdl, from, | |
2832 | ZFS_TYPE_DATASET); | |
1d20b763 | 2833 | if (from_zhp == NULL) |
2834 | return (-1); | |
30af21b0 PD |
2835 | if (!snapshot_is_before(from_zhp, zhp)) { |
2836 | zfs_close(from_zhp); | |
2837 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2838 | "not an earlier snapshot from the same fs")); | |
2839 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
2840 | } | |
2841 | zfs_close(from_zhp); | |
2842 | } | |
835db585 | 2843 | |
22df2457 RM |
2844 | if (redactbook != NULL) { |
2845 | char bookname[ZFS_MAX_DATASET_NAME_LEN]; | |
2846 | nvlist_t *redact_snaps; | |
2847 | zfs_handle_t *book_zhp; | |
2848 | char *at, *pound; | |
2849 | int dsnamelen; | |
2850 | ||
2851 | pound = strchr(redactbook, '#'); | |
2852 | if (pound != NULL) | |
2853 | redactbook = pound + 1; | |
2854 | at = strchr(name, '@'); | |
2855 | if (at == NULL) { | |
2856 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2857 | "cannot do a redacted send to a filesystem")); | |
2858 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
2859 | } | |
2860 | dsnamelen = at - name; | |
2861 | if (snprintf(bookname, sizeof (bookname), "%.*s#%s", | |
2862 | dsnamelen, name, redactbook) | |
2863 | >= sizeof (bookname)) { | |
2864 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2865 | "invalid bookmark name")); | |
2866 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
2867 | } | |
2868 | book_zhp = zfs_open(hdl, bookname, ZFS_TYPE_BOOKMARK); | |
2869 | if (book_zhp == NULL) | |
2870 | return (-1); | |
2871 | if (nvlist_lookup_nvlist(book_zhp->zfs_props, | |
2872 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS), | |
2873 | &redact_snaps) != 0 || redact_snaps == NULL) { | |
2874 | zfs_close(book_zhp); | |
2875 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2876 | "not a redaction bookmark")); | |
2877 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
2878 | } | |
2879 | zfs_close(book_zhp); | |
2880 | } | |
2881 | ||
30af21b0 PD |
2882 | /* |
2883 | * Send fs properties | |
2884 | */ | |
2885 | if (flags->props || flags->holds || flags->backup) { | |
2886 | /* | |
2887 | * Note: the header generated by send_prelim_records() | |
2888 | * assumes that the incremental source is in the same | |
2889 | * filesystem/volume as the target (which is a requirement | |
2890 | * when doing "zfs send -R"). But that isn't always the | |
2891 | * case here (e.g. send from snap in origin, or send from | |
2892 | * bookmark). We pass from=NULL, which will omit this | |
2893 | * information from the prelim records; it isn't used | |
2894 | * when receiving this type of stream. | |
2895 | */ | |
2896 | err = send_prelim_records(zhp, NULL, fd, B_TRUE, B_FALSE, | |
2897 | flags->verbosity > 0, flags->dryrun, flags->raw, | |
2898 | flags->replicate, flags->backup, flags->holds, | |
2899 | flags->props, flags->doall, NULL, NULL); | |
2900 | if (err != 0) | |
2901 | return (err); | |
2902 | } | |
2903 | ||
2904 | /* | |
2905 | * Perform size estimate if verbose was specified. | |
2906 | */ | |
2907 | if (flags->verbosity != 0) { | |
2908 | err = estimate_size(zhp, from, fd, flags, 0, 0, 0, redactbook, | |
2909 | errbuf); | |
2910 | if (err != 0) | |
2911 | return (err); | |
2912 | } | |
2913 | ||
2914 | if (flags->dryrun) | |
2915 | return (0); | |
2916 | ||
2917 | /* | |
2918 | * If deduplication is requested, spawn a thread that will deduplicate | |
2919 | * the data coming out of the kernel. | |
2920 | */ | |
2921 | if (flags->dedup) { | |
2922 | err = get_dedup_fd(zhp, &dda, fd, &ddtid, &fd); | |
2923 | if (err != 0) | |
2924 | return (err); | |
2925 | } | |
2926 | ||
2927 | /* | |
2928 | * If progress reporting is requested, spawn a new thread to poll | |
2929 | * ZFS_IOC_SEND_PROGRESS at a regular interval. | |
2930 | */ | |
2931 | if (flags->progress) { | |
2932 | pa.pa_zhp = zhp; | |
2933 | pa.pa_fd = fd; | |
2934 | pa.pa_parsable = flags->parsable; | |
2935 | pa.pa_estimate = B_FALSE; | |
2936 | pa.pa_verbosity = flags->verbosity; | |
2937 | ||
2938 | err = pthread_create(&ptid, NULL, | |
2939 | send_progress_thread, &pa); | |
2940 | if (err != 0) { | |
2941 | zfs_error_aux(zhp->zfs_hdl, strerror(errno)); | |
2942 | if (flags->dedup) { | |
2943 | (void) pthread_cancel(ddtid); | |
2944 | (void) close(fd); | |
2945 | (void) pthread_join(ddtid, NULL); | |
2946 | } | |
2947 | return (zfs_error(zhp->zfs_hdl, | |
2948 | EZFS_THREADCREATEFAILED, errbuf)); | |
835db585 | 2949 | } |
2950 | } | |
2951 | ||
22df2457 | 2952 | err = lzc_send_redacted(name, from, fd, |
30af21b0 | 2953 | lzc_flags_from_sendflags(flags), redactbook); |
835db585 | 2954 | |
30af21b0 PD |
2955 | if (flags->progress) { |
2956 | void *status = NULL; | |
2957 | if (err != 0) | |
2958 | (void) pthread_cancel(ptid); | |
2959 | (void) pthread_join(ptid, &status); | |
2960 | int error = (int)(uintptr_t)status; | |
2961 | if (error != 0 && status != PTHREAD_CANCELED) { | |
2962 | char errbuf[1024]; | |
2963 | (void) snprintf(errbuf, sizeof (errbuf), | |
2964 | dgettext(TEXT_DOMAIN, "progress thread exited " | |
2965 | "nonzero")); | |
2966 | return (zfs_standard_error(hdl, error, errbuf)); | |
2967 | } | |
2968 | } | |
2969 | if (flags->dedup) { | |
2970 | if (err != 0) | |
2971 | (void) pthread_cancel(ddtid); | |
2972 | (void) close(fd); | |
2973 | (void) pthread_join(ddtid, NULL); | |
2974 | } | |
da536844 | 2975 | |
30af21b0 PD |
2976 | if (flags->props || flags->holds || flags->backup) { |
2977 | /* Write the final end record. */ | |
2978 | err = send_conclusion_record(orig_fd, NULL); | |
2979 | if (err != 0) | |
2980 | return (zfs_standard_error(hdl, err, errbuf)); | |
2981 | } | |
da536844 MA |
2982 | if (err != 0) { |
2983 | switch (errno) { | |
2984 | case EXDEV: | |
2985 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2986 | "not an earlier snapshot from the same fs")); | |
2987 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
2988 | ||
2989 | case ENOENT: | |
2990 | case ESRCH: | |
22df2457 | 2991 | if (lzc_exists(name)) { |
da536844 MA |
2992 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
2993 | "incremental source (%s) does not exist"), | |
2994 | from); | |
2995 | } | |
2996 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2997 | ||
b5256303 TC |
2998 | case EACCES: |
2999 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3000 | "dataset key must be loaded")); | |
3001 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
3002 | ||
da536844 MA |
3003 | case EBUSY: |
3004 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3005 | "target is busy; if a filesystem, " | |
3006 | "it must not be mounted")); | |
3007 | return (zfs_error(hdl, EZFS_BUSY, errbuf)); | |
3008 | ||
3009 | case EDQUOT: | |
22df2457 | 3010 | case EFAULT: |
da536844 | 3011 | case EFBIG: |
22df2457 | 3012 | case EINVAL: |
da536844 MA |
3013 | case EIO: |
3014 | case ENOLINK: | |
3015 | case ENOSPC: | |
3016 | case ENOSTR: | |
3017 | case ENXIO: | |
3018 | case EPIPE: | |
3019 | case ERANGE: | |
da536844 MA |
3020 | case EROFS: |
3021 | zfs_error_aux(hdl, strerror(errno)); | |
3022 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); | |
3023 | ||
3024 | default: | |
3025 | return (zfs_standard_error(hdl, errno, errbuf)); | |
3026 | } | |
3027 | } | |
3028 | return (err != 0); | |
3029 | } | |
3030 | ||
34dc7c2f BB |
3031 | /* |
3032 | * Routines specific to "zfs recv" | |
3033 | */ | |
3034 | ||
3035 | static int | |
3036 | recv_read(libzfs_handle_t *hdl, int fd, void *buf, int ilen, | |
3037 | boolean_t byteswap, zio_cksum_t *zc) | |
3038 | { | |
3039 | char *cp = buf; | |
3040 | int rv; | |
3041 | int len = ilen; | |
3042 | ||
37f8a883 MA |
3043 | assert(ilen <= SPA_MAXBLOCKSIZE); |
3044 | ||
34dc7c2f BB |
3045 | do { |
3046 | rv = read(fd, cp, len); | |
3047 | cp += rv; | |
3048 | len -= rv; | |
3049 | } while (rv > 0); | |
3050 | ||
3051 | if (rv < 0 || len != 0) { | |
3052 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3053 | "failed to read from stream")); | |
3054 | return (zfs_error(hdl, EZFS_BADSTREAM, dgettext(TEXT_DOMAIN, | |
3055 | "cannot receive"))); | |
3056 | } | |
3057 | ||
3058 | if (zc) { | |
3059 | if (byteswap) | |
3060 | fletcher_4_incremental_byteswap(buf, ilen, zc); | |
3061 | else | |
3062 | fletcher_4_incremental_native(buf, ilen, zc); | |
3063 | } | |
3064 | return (0); | |
3065 | } | |
3066 | ||
3067 | static int | |
3068 | recv_read_nvlist(libzfs_handle_t *hdl, int fd, int len, nvlist_t **nvp, | |
3069 | boolean_t byteswap, zio_cksum_t *zc) | |
3070 | { | |
3071 | char *buf; | |
3072 | int err; | |
3073 | ||
3074 | buf = zfs_alloc(hdl, len); | |
3075 | if (buf == NULL) | |
3076 | return (ENOMEM); | |
3077 | ||
3078 | err = recv_read(hdl, fd, buf, len, byteswap, zc); | |
3079 | if (err != 0) { | |
3080 | free(buf); | |
3081 | return (err); | |
3082 | } | |
3083 | ||
3084 | err = nvlist_unpack(buf, len, nvp, 0); | |
3085 | free(buf); | |
3086 | if (err != 0) { | |
3087 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
3088 | "stream (malformed nvlist)")); | |
3089 | return (EINVAL); | |
3090 | } | |
3091 | return (0); | |
3092 | } | |
3093 | ||
b5256303 TC |
3094 | /* |
3095 | * Returns the grand origin (origin of origin of origin...) of a given handle. | |
3096 | * If this dataset is not a clone, it simply returns a copy of the original | |
3097 | * handle. | |
3098 | */ | |
3099 | static zfs_handle_t * | |
3100 | recv_open_grand_origin(zfs_handle_t *zhp) | |
3101 | { | |
3102 | char origin[ZFS_MAX_DATASET_NAME_LEN]; | |
3103 | zprop_source_t src; | |
3104 | zfs_handle_t *ozhp = zfs_handle_dup(zhp); | |
3105 | ||
3106 | while (ozhp != NULL) { | |
3107 | if (zfs_prop_get(ozhp, ZFS_PROP_ORIGIN, origin, | |
3108 | sizeof (origin), &src, NULL, 0, B_FALSE) != 0) | |
3109 | break; | |
3110 | ||
3111 | (void) zfs_close(ozhp); | |
3112 | ozhp = zfs_open(zhp->zfs_hdl, origin, ZFS_TYPE_FILESYSTEM); | |
3113 | } | |
3114 | ||
3115 | return (ozhp); | |
3116 | } | |
3117 | ||
3118 | static int | |
dc1c630b | 3119 | recv_rename_impl(zfs_handle_t *zhp, const char *name, const char *newname) |
b5256303 TC |
3120 | { |
3121 | int err; | |
3122 | zfs_handle_t *ozhp = NULL; | |
3123 | ||
3124 | /* | |
3125 | * Attempt to rename the dataset. If it fails with EACCES we have | |
3126 | * attempted to rename the dataset outside of its encryption root. | |
3127 | * Force the dataset to become an encryption root and try again. | |
3128 | */ | |
dc1c630b | 3129 | err = lzc_rename(name, newname); |
b5256303 TC |
3130 | if (err == EACCES) { |
3131 | ozhp = recv_open_grand_origin(zhp); | |
3132 | if (ozhp == NULL) { | |
3133 | err = ENOENT; | |
3134 | goto out; | |
3135 | } | |
3136 | ||
3137 | err = lzc_change_key(ozhp->zfs_name, DCP_CMD_FORCE_NEW_KEY, | |
3138 | NULL, NULL, 0); | |
3139 | if (err != 0) | |
3140 | goto out; | |
3141 | ||
dc1c630b | 3142 | err = lzc_rename(name, newname); |
b5256303 TC |
3143 | } |
3144 | ||
3145 | out: | |
3146 | if (ozhp != NULL) | |
3147 | zfs_close(ozhp); | |
3148 | return (err); | |
3149 | } | |
3150 | ||
34dc7c2f BB |
3151 | static int |
3152 | recv_rename(libzfs_handle_t *hdl, const char *name, const char *tryname, | |
330d06f9 | 3153 | int baselen, char *newname, recvflags_t *flags) |
34dc7c2f BB |
3154 | { |
3155 | static int seq; | |
34dc7c2f | 3156 | int err; |
b5256303 TC |
3157 | prop_changelist_t *clp = NULL; |
3158 | zfs_handle_t *zhp = NULL; | |
34dc7c2f BB |
3159 | |
3160 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); | |
b5256303 TC |
3161 | if (zhp == NULL) { |
3162 | err = -1; | |
3163 | goto out; | |
3164 | } | |
b128c09f | 3165 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
330d06f9 | 3166 | flags->force ? MS_FORCE : 0); |
b5256303 TC |
3167 | if (clp == NULL) { |
3168 | err = -1; | |
3169 | goto out; | |
3170 | } | |
34dc7c2f BB |
3171 | err = changelist_prefix(clp); |
3172 | if (err) | |
b5256303 | 3173 | goto out; |
34dc7c2f BB |
3174 | |
3175 | if (tryname) { | |
3176 | (void) strcpy(newname, tryname); | |
330d06f9 | 3177 | if (flags->verbose) { |
34dc7c2f | 3178 | (void) printf("attempting rename %s to %s\n", |
dc1c630b | 3179 | name, newname); |
34dc7c2f | 3180 | } |
dc1c630b | 3181 | err = recv_rename_impl(zhp, name, newname); |
34dc7c2f BB |
3182 | if (err == 0) |
3183 | changelist_rename(clp, name, tryname); | |
3184 | } else { | |
3185 | err = ENOENT; | |
3186 | } | |
3187 | ||
13fe0198 | 3188 | if (err != 0 && strncmp(name + baselen, "recv-", 5) != 0) { |
34dc7c2f BB |
3189 | seq++; |
3190 | ||
eca7b760 IK |
3191 | (void) snprintf(newname, ZFS_MAX_DATASET_NAME_LEN, |
3192 | "%.*srecv-%u-%u", baselen, name, getpid(), seq); | |
34dc7c2f | 3193 | |
330d06f9 | 3194 | if (flags->verbose) { |
34dc7c2f | 3195 | (void) printf("failed - trying rename %s to %s\n", |
dc1c630b | 3196 | name, newname); |
34dc7c2f | 3197 | } |
dc1c630b | 3198 | err = recv_rename_impl(zhp, name, newname); |
34dc7c2f BB |
3199 | if (err == 0) |
3200 | changelist_rename(clp, name, newname); | |
330d06f9 | 3201 | if (err && flags->verbose) { |
34dc7c2f BB |
3202 | (void) printf("failed (%u) - " |
3203 | "will try again on next pass\n", errno); | |
3204 | } | |
3205 | err = EAGAIN; | |
330d06f9 | 3206 | } else if (flags->verbose) { |
34dc7c2f BB |
3207 | if (err == 0) |
3208 | (void) printf("success\n"); | |
3209 | else | |
3210 | (void) printf("failed (%u)\n", errno); | |
3211 | } | |
3212 | ||
3213 | (void) changelist_postfix(clp); | |
b5256303 TC |
3214 | |
3215 | out: | |
3216 | if (clp != NULL) | |
3217 | changelist_free(clp); | |
3218 | if (zhp != NULL) | |
3219 | zfs_close(zhp); | |
3220 | ||
3221 | return (err); | |
3222 | } | |
3223 | ||
3224 | static int | |
3225 | recv_promote(libzfs_handle_t *hdl, const char *fsname, | |
3226 | const char *origin_fsname, recvflags_t *flags) | |
3227 | { | |
3228 | int err; | |
3229 | zfs_cmd_t zc = {"\0"}; | |
3230 | zfs_handle_t *zhp = NULL, *ozhp = NULL; | |
3231 | ||
3232 | if (flags->verbose) | |
3233 | (void) printf("promoting %s\n", fsname); | |
3234 | ||
3235 | (void) strlcpy(zc.zc_value, origin_fsname, sizeof (zc.zc_value)); | |
3236 | (void) strlcpy(zc.zc_name, fsname, sizeof (zc.zc_name)); | |
3237 | ||
3238 | /* | |
3239 | * Attempt to promote the dataset. If it fails with EACCES the | |
3240 | * promotion would cause this dataset to leave its encryption root. | |
3241 | * Force the origin to become an encryption root and try again. | |
3242 | */ | |
3243 | err = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); | |
3244 | if (err == EACCES) { | |
3245 | zhp = zfs_open(hdl, fsname, ZFS_TYPE_DATASET); | |
3246 | if (zhp == NULL) { | |
3247 | err = -1; | |
3248 | goto out; | |
3249 | } | |
3250 | ||
3251 | ozhp = recv_open_grand_origin(zhp); | |
3252 | if (ozhp == NULL) { | |
3253 | err = -1; | |
3254 | goto out; | |
3255 | } | |
3256 | ||
3257 | err = lzc_change_key(ozhp->zfs_name, DCP_CMD_FORCE_NEW_KEY, | |
3258 | NULL, NULL, 0); | |
3259 | if (err != 0) | |
3260 | goto out; | |
3261 | ||
3262 | err = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); | |
3263 | } | |
3264 | ||
3265 | out: | |
3266 | if (zhp != NULL) | |
3267 | zfs_close(zhp); | |
3268 | if (ozhp != NULL) | |
3269 | zfs_close(ozhp); | |
34dc7c2f BB |
3270 | |
3271 | return (err); | |
3272 | } | |
3273 | ||
3274 | static int | |
3275 | recv_destroy(libzfs_handle_t *hdl, const char *name, int baselen, | |
330d06f9 | 3276 | char *newname, recvflags_t *flags) |
34dc7c2f | 3277 | { |
34dc7c2f BB |
3278 | int err = 0; |
3279 | prop_changelist_t *clp; | |
3280 | zfs_handle_t *zhp; | |
45d1cae3 BB |
3281 | boolean_t defer = B_FALSE; |
3282 | int spa_version; | |
34dc7c2f BB |
3283 | |
3284 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); | |
3285 | if (zhp == NULL) | |
3286 | return (-1); | |
b128c09f | 3287 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
330d06f9 | 3288 | flags->force ? MS_FORCE : 0); |
45d1cae3 BB |
3289 | if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT && |
3290 | zfs_spa_version(zhp, &spa_version) == 0 && | |
3291 | spa_version >= SPA_VERSION_USERREFS) | |
3292 | defer = B_TRUE; | |
34dc7c2f BB |
3293 | zfs_close(zhp); |
3294 | if (clp == NULL) | |
3295 | return (-1); | |
3296 | err = changelist_prefix(clp); | |
3297 | if (err) | |
3298 | return (err); | |
3299 | ||
330d06f9 | 3300 | if (flags->verbose) |
dc1c630b AG |
3301 | (void) printf("attempting destroy %s\n", name); |
3302 | if (zhp->zfs_type == ZFS_TYPE_SNAPSHOT) { | |
3303 | nvlist_t *nv = fnvlist_alloc(); | |
3304 | fnvlist_add_boolean(nv, name); | |
3305 | err = lzc_destroy_snaps(nv, defer, NULL); | |
3306 | fnvlist_free(nv); | |
3307 | } else { | |
3308 | err = lzc_destroy(name); | |
3309 | } | |
34dc7c2f | 3310 | if (err == 0) { |
330d06f9 | 3311 | if (flags->verbose) |
34dc7c2f | 3312 | (void) printf("success\n"); |
dc1c630b | 3313 | changelist_remove(clp, name); |
34dc7c2f BB |
3314 | } |
3315 | ||
3316 | (void) changelist_postfix(clp); | |
3317 | changelist_free(clp); | |
3318 | ||
45d1cae3 | 3319 | /* |
428870ff BB |
3320 | * Deferred destroy might destroy the snapshot or only mark it to be |
3321 | * destroyed later, and it returns success in either case. | |
45d1cae3 | 3322 | */ |
428870ff BB |
3323 | if (err != 0 || (defer && zfs_dataset_exists(hdl, name, |
3324 | ZFS_TYPE_SNAPSHOT))) { | |
34dc7c2f | 3325 | err = recv_rename(hdl, name, NULL, baselen, newname, flags); |
428870ff | 3326 | } |
34dc7c2f BB |
3327 | |
3328 | return (err); | |
3329 | } | |
3330 | ||
3331 | typedef struct guid_to_name_data { | |
3332 | uint64_t guid; | |
47dfff3b | 3333 | boolean_t bookmark_ok; |
34dc7c2f | 3334 | char *name; |
330d06f9 | 3335 | char *skip; |
30af21b0 PD |
3336 | uint64_t *redact_snap_guids; |
3337 | uint64_t num_redact_snaps; | |
34dc7c2f BB |
3338 | } guid_to_name_data_t; |
3339 | ||
30af21b0 PD |
3340 | boolean_t |
3341 | redact_snaps_match(zfs_handle_t *zhp, guid_to_name_data_t *gtnd) | |
3342 | { | |
3343 | uint64_t *bmark_snaps; | |
3344 | uint_t bmark_num_snaps; | |
3345 | nvlist_t *nvl; | |
3346 | if (zhp->zfs_type != ZFS_TYPE_BOOKMARK) | |
3347 | return (B_FALSE); | |
3348 | ||
3349 | nvl = fnvlist_lookup_nvlist(zhp->zfs_props, | |
3350 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS)); | |
3351 | bmark_snaps = fnvlist_lookup_uint64_array(nvl, ZPROP_VALUE, | |
3352 | &bmark_num_snaps); | |
3353 | if (bmark_num_snaps != gtnd->num_redact_snaps) | |
3354 | return (B_FALSE); | |
3355 | int i = 0; | |
3356 | for (; i < bmark_num_snaps; i++) { | |
3357 | int j = 0; | |
3358 | for (; j < bmark_num_snaps; j++) { | |
3359 | if (bmark_snaps[i] == gtnd->redact_snap_guids[j]) | |
3360 | break; | |
3361 | } | |
3362 | if (j == bmark_num_snaps) | |
3363 | break; | |
3364 | } | |
3365 | return (i == bmark_num_snaps); | |
3366 | } | |
3367 | ||
34dc7c2f BB |
3368 | static int |
3369 | guid_to_name_cb(zfs_handle_t *zhp, void *arg) | |
3370 | { | |
3371 | guid_to_name_data_t *gtnd = arg; | |
47dfff3b | 3372 | const char *slash; |
34dc7c2f BB |
3373 | int err; |
3374 | ||
330d06f9 | 3375 | if (gtnd->skip != NULL && |
47dfff3b MA |
3376 | (slash = strrchr(zhp->zfs_name, '/')) != NULL && |
3377 | strcmp(slash + 1, gtnd->skip) == 0) { | |
3378 | zfs_close(zhp); | |
330d06f9 MA |
3379 | return (0); |
3380 | } | |
3381 | ||
30af21b0 PD |
3382 | if (zfs_prop_get_int(zhp, ZFS_PROP_GUID) == gtnd->guid && |
3383 | (gtnd->num_redact_snaps == -1 || redact_snaps_match(zhp, gtnd))) { | |
34dc7c2f | 3384 | (void) strcpy(gtnd->name, zhp->zfs_name); |
428870ff | 3385 | zfs_close(zhp); |
34dc7c2f BB |
3386 | return (EEXIST); |
3387 | } | |
330d06f9 | 3388 | |
34dc7c2f | 3389 | err = zfs_iter_children(zhp, guid_to_name_cb, gtnd); |
47dfff3b MA |
3390 | if (err != EEXIST && gtnd->bookmark_ok) |
3391 | err = zfs_iter_bookmarks(zhp, guid_to_name_cb, gtnd); | |
34dc7c2f BB |
3392 | zfs_close(zhp); |
3393 | return (err); | |
3394 | } | |
3395 | ||
330d06f9 MA |
3396 | /* |
3397 | * Attempt to find the local dataset associated with this guid. In the case of | |
3398 | * multiple matches, we attempt to find the "best" match by searching | |
3399 | * progressively larger portions of the hierarchy. This allows one to send a | |
3400 | * tree of datasets individually and guarantee that we will find the source | |
3401 | * guid within that hierarchy, even if there are multiple matches elsewhere. | |
30af21b0 PD |
3402 | * |
3403 | * If num_redact_snaps is not -1, we attempt to find a redaction bookmark with | |
3404 | * the specified number of redaction snapshots. If num_redact_snaps isn't 0 or | |
3405 | * -1, then redact_snap_guids will be an array of the guids of the snapshots the | |
3406 | * redaction bookmark was created with. If num_redact_snaps is -1, then we will | |
3407 | * attempt to find a snapshot or bookmark (if bookmark_ok is passed) with the | |
3408 | * given guid. Note that a redaction bookmark can be returned if | |
3409 | * num_redact_snaps == -1. | |
330d06f9 | 3410 | */ |
34dc7c2f | 3411 | static int |
30af21b0 PD |
3412 | guid_to_name_redact_snaps(libzfs_handle_t *hdl, const char *parent, |
3413 | uint64_t guid, boolean_t bookmark_ok, uint64_t *redact_snap_guids, | |
3414 | uint64_t num_redact_snaps, char *name) | |
34dc7c2f | 3415 | { |
eca7b760 | 3416 | char pname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 3417 | guid_to_name_data_t gtnd; |
34dc7c2f BB |
3418 | |
3419 | gtnd.guid = guid; | |
47dfff3b | 3420 | gtnd.bookmark_ok = bookmark_ok; |
34dc7c2f | 3421 | gtnd.name = name; |
330d06f9 | 3422 | gtnd.skip = NULL; |
30af21b0 PD |
3423 | gtnd.redact_snap_guids = redact_snap_guids; |
3424 | gtnd.num_redact_snaps = num_redact_snaps; | |
34dc7c2f | 3425 | |
330d06f9 | 3426 | /* |
47dfff3b MA |
3427 | * Search progressively larger portions of the hierarchy, starting |
3428 | * with the filesystem specified by 'parent'. This will | |
330d06f9 MA |
3429 | * select the "most local" version of the origin snapshot in the case |
3430 | * that there are multiple matching snapshots in the system. | |
3431 | */ | |
47dfff3b MA |
3432 | (void) strlcpy(pname, parent, sizeof (pname)); |
3433 | char *cp = strrchr(pname, '@'); | |
3434 | if (cp == NULL) | |
3435 | cp = strchr(pname, '\0'); | |
3436 | for (; cp != NULL; cp = strrchr(pname, '/')) { | |
330d06f9 | 3437 | /* Chop off the last component and open the parent */ |
34dc7c2f | 3438 | *cp = '\0'; |
47dfff3b | 3439 | zfs_handle_t *zhp = make_dataset_handle(hdl, pname); |
330d06f9 MA |
3440 | |
3441 | if (zhp == NULL) | |
3442 | continue; | |
47dfff3b MA |
3443 | int err = guid_to_name_cb(zfs_handle_dup(zhp), >nd); |
3444 | if (err != EEXIST) | |
3445 | err = zfs_iter_children(zhp, guid_to_name_cb, >nd); | |
3446 | if (err != EEXIST && bookmark_ok) | |
3447 | err = zfs_iter_bookmarks(zhp, guid_to_name_cb, >nd); | |
34dc7c2f | 3448 | zfs_close(zhp); |
330d06f9 MA |
3449 | if (err == EEXIST) |
3450 | return (0); | |
34dc7c2f | 3451 | |
330d06f9 | 3452 | /* |
47dfff3b MA |
3453 | * Remember the last portion of the dataset so we skip it next |
3454 | * time through (as we've already searched that portion of the | |
3455 | * hierarchy). | |
330d06f9 | 3456 | */ |
47dfff3b | 3457 | gtnd.skip = strrchr(pname, '/') + 1; |
330d06f9 | 3458 | } |
34dc7c2f | 3459 | |
330d06f9 | 3460 | return (ENOENT); |
34dc7c2f BB |
3461 | } |
3462 | ||
30af21b0 PD |
3463 | static int |
3464 | guid_to_name(libzfs_handle_t *hdl, const char *parent, uint64_t guid, | |
3465 | boolean_t bookmark_ok, char *name) | |
3466 | { | |
3467 | return (guid_to_name_redact_snaps(hdl, parent, guid, bookmark_ok, NULL, | |
3468 | -1, name)); | |
3469 | } | |
3470 | ||
34dc7c2f | 3471 | /* |
330d06f9 MA |
3472 | * Return +1 if guid1 is before guid2, 0 if they are the same, and -1 if |
3473 | * guid1 is after guid2. | |
34dc7c2f BB |
3474 | */ |
3475 | static int | |
3476 | created_before(libzfs_handle_t *hdl, avl_tree_t *avl, | |
3477 | uint64_t guid1, uint64_t guid2) | |
3478 | { | |
3479 | nvlist_t *nvfs; | |
98401d23 | 3480 | char *fsname = NULL, *snapname = NULL; |
eca7b760 | 3481 | char buf[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 3482 | int rv; |
330d06f9 MA |
3483 | zfs_handle_t *guid1hdl, *guid2hdl; |
3484 | uint64_t create1, create2; | |
34dc7c2f BB |
3485 | |
3486 | if (guid2 == 0) | |
3487 | return (0); | |
3488 | if (guid1 == 0) | |
3489 | return (1); | |
3490 | ||
3491 | nvfs = fsavl_find(avl, guid1, &snapname); | |
3492 | VERIFY(0 == nvlist_lookup_string(nvfs, "name", &fsname)); | |
3493 | (void) snprintf(buf, sizeof (buf), "%s@%s", fsname, snapname); | |
330d06f9 MA |
3494 | guid1hdl = zfs_open(hdl, buf, ZFS_TYPE_SNAPSHOT); |
3495 | if (guid1hdl == NULL) | |
34dc7c2f BB |
3496 | return (-1); |
3497 | ||
3498 | nvfs = fsavl_find(avl, guid2, &snapname); | |
3499 | VERIFY(0 == nvlist_lookup_string(nvfs, "name", &fsname)); | |
3500 | (void) snprintf(buf, sizeof (buf), "%s@%s", fsname, snapname); | |
330d06f9 MA |
3501 | guid2hdl = zfs_open(hdl, buf, ZFS_TYPE_SNAPSHOT); |
3502 | if (guid2hdl == NULL) { | |
3503 | zfs_close(guid1hdl); | |
34dc7c2f BB |
3504 | return (-1); |
3505 | } | |
3506 | ||
330d06f9 MA |
3507 | create1 = zfs_prop_get_int(guid1hdl, ZFS_PROP_CREATETXG); |
3508 | create2 = zfs_prop_get_int(guid2hdl, ZFS_PROP_CREATETXG); | |
34dc7c2f | 3509 | |
330d06f9 MA |
3510 | if (create1 < create2) |
3511 | rv = -1; | |
3512 | else if (create1 > create2) | |
3513 | rv = +1; | |
3514 | else | |
3515 | rv = 0; | |
3516 | ||
3517 | zfs_close(guid1hdl); | |
3518 | zfs_close(guid2hdl); | |
34dc7c2f BB |
3519 | |
3520 | return (rv); | |
3521 | } | |
3522 | ||
b5256303 | 3523 | /* |
83472fab | 3524 | * This function reestablishes the hierarchy of encryption roots after a |
b5256303 TC |
3525 | * recursive incremental receive has completed. This must be done after the |
3526 | * second call to recv_incremental_replication() has renamed and promoted all | |
83472fab | 3527 | * sent datasets to their final locations in the dataset hierarchy. |
b5256303 TC |
3528 | */ |
3529 | static int | |
bb61cc31 | 3530 | recv_fix_encryption_hierarchy(libzfs_handle_t *hdl, const char *top_zfs, |
b5256303 TC |
3531 | nvlist_t *stream_nv, avl_tree_t *stream_avl) |
3532 | { | |
3533 | int err; | |
3534 | nvpair_t *fselem = NULL; | |
3535 | nvlist_t *stream_fss; | |
3536 | ||
3537 | VERIFY(0 == nvlist_lookup_nvlist(stream_nv, "fss", &stream_fss)); | |
3538 | ||
3539 | while ((fselem = nvlist_next_nvpair(stream_fss, fselem)) != NULL) { | |
3540 | zfs_handle_t *zhp = NULL; | |
3541 | uint64_t crypt; | |
3542 | nvlist_t *snaps, *props, *stream_nvfs = NULL; | |
3543 | nvpair_t *snapel = NULL; | |
3544 | boolean_t is_encroot, is_clone, stream_encroot; | |
3545 | char *cp; | |
3546 | char *stream_keylocation = NULL; | |
3547 | char keylocation[MAXNAMELEN]; | |
3548 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; | |
3549 | ||
3550 | keylocation[0] = '\0'; | |
3551 | VERIFY(0 == nvpair_value_nvlist(fselem, &stream_nvfs)); | |
3552 | VERIFY(0 == nvlist_lookup_nvlist(stream_nvfs, "snaps", &snaps)); | |
3553 | VERIFY(0 == nvlist_lookup_nvlist(stream_nvfs, "props", &props)); | |
3554 | stream_encroot = nvlist_exists(stream_nvfs, "is_encroot"); | |
3555 | ||
3556 | /* find a snapshot from the stream that exists locally */ | |
3557 | err = ENOENT; | |
3558 | while ((snapel = nvlist_next_nvpair(snaps, snapel)) != NULL) { | |
3559 | uint64_t guid; | |
3560 | ||
3561 | VERIFY(0 == nvpair_value_uint64(snapel, &guid)); | |
bb61cc31 | 3562 | err = guid_to_name(hdl, top_zfs, guid, B_FALSE, |
b5256303 TC |
3563 | fsname); |
3564 | if (err == 0) | |
3565 | break; | |
3566 | } | |
3567 | ||
3568 | if (err != 0) | |
3569 | continue; | |
3570 | ||
3571 | cp = strchr(fsname, '@'); | |
3572 | if (cp != NULL) | |
3573 | *cp = '\0'; | |
3574 | ||
3575 | zhp = zfs_open(hdl, fsname, ZFS_TYPE_DATASET); | |
3576 | if (zhp == NULL) { | |
3577 | err = ENOENT; | |
3578 | goto error; | |
3579 | } | |
3580 | ||
3581 | crypt = zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION); | |
3582 | is_clone = zhp->zfs_dmustats.dds_origin[0] != '\0'; | |
3583 | (void) zfs_crypto_get_encryption_root(zhp, &is_encroot, NULL); | |
3584 | ||
da689887 | 3585 | /* we don't need to do anything for unencrypted datasets */ |
b5256303 TC |
3586 | if (crypt == ZIO_CRYPT_OFF) { |
3587 | zfs_close(zhp); | |
3588 | continue; | |
3589 | } | |
3590 | ||
3591 | /* | |
3592 | * If the dataset is flagged as an encryption root, was not | |
3593 | * received as a clone and is not currently an encryption root, | |
3594 | * force it to become one. Fixup the keylocation if necessary. | |
3595 | */ | |
3596 | if (stream_encroot) { | |
3597 | if (!is_clone && !is_encroot) { | |
3598 | err = lzc_change_key(fsname, | |
3599 | DCP_CMD_FORCE_NEW_KEY, NULL, NULL, 0); | |
3600 | if (err != 0) { | |
3601 | zfs_close(zhp); | |
3602 | goto error; | |
3603 | } | |
3604 | } | |
3605 | ||
3606 | VERIFY(0 == nvlist_lookup_string(props, | |
3607 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), | |
3608 | &stream_keylocation)); | |
3609 | ||
3610 | /* | |
3611 | * Refresh the properties in case the call to | |
3612 | * lzc_change_key() changed the value. | |
3613 | */ | |
3614 | zfs_refresh_properties(zhp); | |
3615 | err = zfs_prop_get(zhp, ZFS_PROP_KEYLOCATION, | |
3616 | keylocation, sizeof (keylocation), NULL, NULL, | |
3617 | 0, B_TRUE); | |
3618 | if (err != 0) { | |
3619 | zfs_close(zhp); | |
3620 | goto error; | |
3621 | } | |
3622 | ||
3623 | if (strcmp(keylocation, stream_keylocation) != 0) { | |
3624 | err = zfs_prop_set(zhp, | |
3625 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), | |
3626 | stream_keylocation); | |
3627 | if (err != 0) { | |
3628 | zfs_close(zhp); | |
3629 | goto error; | |
3630 | } | |
3631 | } | |
3632 | } | |
3633 | ||
3634 | /* | |
3635 | * If the dataset is not flagged as an encryption root and is | |
3636 | * currently an encryption root, force it to inherit from its | |
4807c0ba TC |
3637 | * parent. The root of a raw send should never be |
3638 | * force-inherited. | |
b5256303 | 3639 | */ |
4807c0ba TC |
3640 | if (!stream_encroot && is_encroot && |
3641 | strcmp(top_zfs, fsname) != 0) { | |
b5256303 TC |
3642 | err = lzc_change_key(fsname, DCP_CMD_FORCE_INHERIT, |
3643 | NULL, NULL, 0); | |
3644 | if (err != 0) { | |
3645 | zfs_close(zhp); | |
3646 | goto error; | |
3647 | } | |
3648 | } | |
3649 | ||
3650 | zfs_close(zhp); | |
3651 | } | |
3652 | ||
3653 | return (0); | |
3654 | ||
3655 | error: | |
3656 | return (err); | |
3657 | } | |
3658 | ||
34dc7c2f BB |
3659 | static int |
3660 | recv_incremental_replication(libzfs_handle_t *hdl, const char *tofs, | |
330d06f9 | 3661 | recvflags_t *flags, nvlist_t *stream_nv, avl_tree_t *stream_avl, |
428870ff | 3662 | nvlist_t *renamed) |
34dc7c2f | 3663 | { |
7509a3d2 | 3664 | nvlist_t *local_nv, *deleted = NULL; |
34dc7c2f BB |
3665 | avl_tree_t *local_avl; |
3666 | nvpair_t *fselem, *nextfselem; | |
428870ff | 3667 | char *fromsnap; |
eca7b760 | 3668 | char newname[ZFS_MAX_DATASET_NAME_LEN]; |
7509a3d2 | 3669 | char guidname[32]; |
34dc7c2f | 3670 | int error; |
428870ff BB |
3671 | boolean_t needagain, progress, recursive; |
3672 | char *s1, *s2; | |
34dc7c2f BB |
3673 | |
3674 | VERIFY(0 == nvlist_lookup_string(stream_nv, "fromsnap", &fromsnap)); | |
428870ff BB |
3675 | |
3676 | recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == | |
3677 | ENOENT); | |
34dc7c2f | 3678 | |
330d06f9 | 3679 | if (flags->dryrun) |
34dc7c2f BB |
3680 | return (0); |
3681 | ||
3682 | again: | |
3683 | needagain = progress = B_FALSE; | |
3684 | ||
7509a3d2 | 3685 | VERIFY(0 == nvlist_alloc(&deleted, NV_UNIQUE_NAME, 0)); |
3686 | ||
34dc7c2f | 3687 | if ((error = gather_nvlist(hdl, tofs, fromsnap, NULL, |
f94b3cbf TC |
3688 | recursive, B_TRUE, B_FALSE, recursive, B_FALSE, B_FALSE, |
3689 | B_FALSE, B_TRUE, &local_nv, &local_avl)) != 0) | |
34dc7c2f BB |
3690 | return (error); |
3691 | ||
3692 | /* | |
3693 | * Process deletes and renames | |
3694 | */ | |
3695 | for (fselem = nvlist_next_nvpair(local_nv, NULL); | |
3696 | fselem; fselem = nextfselem) { | |
3697 | nvlist_t *nvfs, *snaps; | |
3698 | nvlist_t *stream_nvfs = NULL; | |
3699 | nvpair_t *snapelem, *nextsnapelem; | |
3700 | uint64_t fromguid = 0; | |
3701 | uint64_t originguid = 0; | |
3702 | uint64_t stream_originguid = 0; | |
3703 | uint64_t parent_fromsnap_guid, stream_parent_fromsnap_guid; | |
3704 | char *fsname, *stream_fsname; | |
3705 | ||
3706 | nextfselem = nvlist_next_nvpair(local_nv, fselem); | |
3707 | ||
3708 | VERIFY(0 == nvpair_value_nvlist(fselem, &nvfs)); | |
3709 | VERIFY(0 == nvlist_lookup_nvlist(nvfs, "snaps", &snaps)); | |
3710 | VERIFY(0 == nvlist_lookup_string(nvfs, "name", &fsname)); | |
3711 | VERIFY(0 == nvlist_lookup_uint64(nvfs, "parentfromsnap", | |
3712 | &parent_fromsnap_guid)); | |
3713 | (void) nvlist_lookup_uint64(nvfs, "origin", &originguid); | |
3714 | ||
3715 | /* | |
3716 | * First find the stream's fs, so we can check for | |
3717 | * a different origin (due to "zfs promote") | |
3718 | */ | |
3719 | for (snapelem = nvlist_next_nvpair(snaps, NULL); | |
3720 | snapelem; snapelem = nvlist_next_nvpair(snaps, snapelem)) { | |
3721 | uint64_t thisguid; | |
3722 | ||
3723 | VERIFY(0 == nvpair_value_uint64(snapelem, &thisguid)); | |
3724 | stream_nvfs = fsavl_find(stream_avl, thisguid, NULL); | |
3725 | ||
3726 | if (stream_nvfs != NULL) | |
3727 | break; | |
3728 | } | |
3729 | ||
3730 | /* check for promote */ | |
3731 | (void) nvlist_lookup_uint64(stream_nvfs, "origin", | |
3732 | &stream_originguid); | |
3733 | if (stream_nvfs && originguid != stream_originguid) { | |
3734 | switch (created_before(hdl, local_avl, | |
3735 | stream_originguid, originguid)) { | |
3736 | case 1: { | |
3737 | /* promote it! */ | |
34dc7c2f BB |
3738 | nvlist_t *origin_nvfs; |
3739 | char *origin_fsname; | |
3740 | ||
34dc7c2f BB |
3741 | origin_nvfs = fsavl_find(local_avl, originguid, |
3742 | NULL); | |
3743 | VERIFY(0 == nvlist_lookup_string(origin_nvfs, | |
3744 | "name", &origin_fsname)); | |
b5256303 TC |
3745 | error = recv_promote(hdl, fsname, origin_fsname, |
3746 | flags); | |
34dc7c2f BB |
3747 | if (error == 0) |
3748 | progress = B_TRUE; | |
3749 | break; | |
3750 | } | |
3751 | default: | |
3752 | break; | |
3753 | case -1: | |
3754 | fsavl_destroy(local_avl); | |
3755 | nvlist_free(local_nv); | |
3756 | return (-1); | |
3757 | } | |
3758 | /* | |
3759 | * We had/have the wrong origin, therefore our | |
3760 | * list of snapshots is wrong. Need to handle | |
3761 | * them on the next pass. | |
3762 | */ | |
3763 | needagain = B_TRUE; | |
3764 | continue; | |
3765 | } | |
3766 | ||
3767 | for (snapelem = nvlist_next_nvpair(snaps, NULL); | |
3768 | snapelem; snapelem = nextsnapelem) { | |
3769 | uint64_t thisguid; | |
3770 | char *stream_snapname; | |
b128c09f | 3771 | nvlist_t *found, *props; |
34dc7c2f BB |
3772 | |
3773 | nextsnapelem = nvlist_next_nvpair(snaps, snapelem); | |
3774 | ||
3775 | VERIFY(0 == nvpair_value_uint64(snapelem, &thisguid)); | |
3776 | found = fsavl_find(stream_avl, thisguid, | |
3777 | &stream_snapname); | |
3778 | ||
3779 | /* check for delete */ | |
3780 | if (found == NULL) { | |
eca7b760 | 3781 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 3782 | |
330d06f9 | 3783 | if (!flags->force) |
34dc7c2f BB |
3784 | continue; |
3785 | ||
3786 | (void) snprintf(name, sizeof (name), "%s@%s", | |
3787 | fsname, nvpair_name(snapelem)); | |
3788 | ||
3789 | error = recv_destroy(hdl, name, | |
3790 | strlen(fsname)+1, newname, flags); | |
3791 | if (error) | |
3792 | needagain = B_TRUE; | |
3793 | else | |
3794 | progress = B_TRUE; | |
3df29340 BB |
3795 | sprintf(guidname, "%llu", |
3796 | (u_longlong_t)thisguid); | |
7509a3d2 | 3797 | nvlist_add_boolean(deleted, guidname); |
34dc7c2f BB |
3798 | continue; |
3799 | } | |
3800 | ||
3801 | stream_nvfs = found; | |
3802 | ||
b128c09f BB |
3803 | if (0 == nvlist_lookup_nvlist(stream_nvfs, "snapprops", |
3804 | &props) && 0 == nvlist_lookup_nvlist(props, | |
3805 | stream_snapname, &props)) { | |
13fe0198 | 3806 | zfs_cmd_t zc = {"\0"}; |
b128c09f | 3807 | |
428870ff | 3808 | zc.zc_cookie = B_TRUE; /* received */ |
b128c09f BB |
3809 | (void) snprintf(zc.zc_name, sizeof (zc.zc_name), |
3810 | "%s@%s", fsname, nvpair_name(snapelem)); | |
3811 | if (zcmd_write_src_nvlist(hdl, &zc, | |
3812 | props) == 0) { | |
3813 | (void) zfs_ioctl(hdl, | |
3814 | ZFS_IOC_SET_PROP, &zc); | |
3815 | zcmd_free_nvlists(&zc); | |
3816 | } | |
3817 | } | |
3818 | ||
34dc7c2f BB |
3819 | /* check for different snapname */ |
3820 | if (strcmp(nvpair_name(snapelem), | |
3821 | stream_snapname) != 0) { | |
eca7b760 IK |
3822 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
3823 | char tryname[ZFS_MAX_DATASET_NAME_LEN]; | |
34dc7c2f BB |
3824 | |
3825 | (void) snprintf(name, sizeof (name), "%s@%s", | |
3826 | fsname, nvpair_name(snapelem)); | |
3827 | (void) snprintf(tryname, sizeof (name), "%s@%s", | |
3828 | fsname, stream_snapname); | |
3829 | ||
3830 | error = recv_rename(hdl, name, tryname, | |
3831 | strlen(fsname)+1, newname, flags); | |
3832 | if (error) | |
3833 | needagain = B_TRUE; | |
3834 | else | |
3835 | progress = B_TRUE; | |
3836 | } | |
3837 | ||
3838 | if (strcmp(stream_snapname, fromsnap) == 0) | |
3839 | fromguid = thisguid; | |
3840 | } | |
3841 | ||
3842 | /* check for delete */ | |
3843 | if (stream_nvfs == NULL) { | |
330d06f9 | 3844 | if (!flags->force) |
34dc7c2f BB |
3845 | continue; |
3846 | ||
3847 | error = recv_destroy(hdl, fsname, strlen(tofs)+1, | |
3848 | newname, flags); | |
3849 | if (error) | |
3850 | needagain = B_TRUE; | |
3851 | else | |
3852 | progress = B_TRUE; | |
3df29340 | 3853 | sprintf(guidname, "%llu", |
02730c33 | 3854 | (u_longlong_t)parent_fromsnap_guid); |
7509a3d2 | 3855 | nvlist_add_boolean(deleted, guidname); |
34dc7c2f BB |
3856 | continue; |
3857 | } | |
3858 | ||
428870ff | 3859 | if (fromguid == 0) { |
330d06f9 | 3860 | if (flags->verbose) { |
428870ff BB |
3861 | (void) printf("local fs %s does not have " |
3862 | "fromsnap (%s in stream); must have " | |
3863 | "been deleted locally; ignoring\n", | |
3864 | fsname, fromsnap); | |
3865 | } | |
34dc7c2f BB |
3866 | continue; |
3867 | } | |
3868 | ||
3869 | VERIFY(0 == nvlist_lookup_string(stream_nvfs, | |
3870 | "name", &stream_fsname)); | |
3871 | VERIFY(0 == nvlist_lookup_uint64(stream_nvfs, | |
3872 | "parentfromsnap", &stream_parent_fromsnap_guid)); | |
3873 | ||
428870ff BB |
3874 | s1 = strrchr(fsname, '/'); |
3875 | s2 = strrchr(stream_fsname, '/'); | |
3876 | ||
7509a3d2 | 3877 | /* |
3878 | * Check if we're going to rename based on parent guid change | |
3879 | * and the current parent guid was also deleted. If it was then | |
3880 | * rename will fail and is likely unneeded, so avoid this and | |
3881 | * force an early retry to determine the new | |
3882 | * parent_fromsnap_guid. | |
3883 | */ | |
3884 | if (stream_parent_fromsnap_guid != 0 && | |
3885 | parent_fromsnap_guid != 0 && | |
3886 | stream_parent_fromsnap_guid != parent_fromsnap_guid) { | |
3df29340 | 3887 | sprintf(guidname, "%llu", |
02730c33 | 3888 | (u_longlong_t)parent_fromsnap_guid); |
7509a3d2 | 3889 | if (nvlist_exists(deleted, guidname)) { |
3890 | progress = B_TRUE; | |
3891 | needagain = B_TRUE; | |
3892 | goto doagain; | |
3893 | } | |
3894 | } | |
3895 | ||
428870ff BB |
3896 | /* |
3897 | * Check for rename. If the exact receive path is specified, it | |
3898 | * does not count as a rename, but we still need to check the | |
3899 | * datasets beneath it. | |
3900 | */ | |
34dc7c2f | 3901 | if ((stream_parent_fromsnap_guid != 0 && |
428870ff | 3902 | parent_fromsnap_guid != 0 && |
34dc7c2f | 3903 | stream_parent_fromsnap_guid != parent_fromsnap_guid) || |
330d06f9 | 3904 | ((flags->isprefix || strcmp(tofs, fsname) != 0) && |
428870ff | 3905 | (s1 != NULL) && (s2 != NULL) && strcmp(s1, s2) != 0)) { |
34dc7c2f | 3906 | nvlist_t *parent; |
eca7b760 | 3907 | char tryname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
3908 | |
3909 | parent = fsavl_find(local_avl, | |
3910 | stream_parent_fromsnap_guid, NULL); | |
3911 | /* | |
3912 | * NB: parent might not be found if we used the | |
3913 | * tosnap for stream_parent_fromsnap_guid, | |
3914 | * because the parent is a newly-created fs; | |
3915 | * we'll be able to rename it after we recv the | |
3916 | * new fs. | |
3917 | */ | |
3918 | if (parent != NULL) { | |
3919 | char *pname; | |
3920 | ||
3921 | VERIFY(0 == nvlist_lookup_string(parent, "name", | |
3922 | &pname)); | |
3923 | (void) snprintf(tryname, sizeof (tryname), | |
3924 | "%s%s", pname, strrchr(stream_fsname, '/')); | |
3925 | } else { | |
3926 | tryname[0] = '\0'; | |
330d06f9 | 3927 | if (flags->verbose) { |
34dc7c2f BB |
3928 | (void) printf("local fs %s new parent " |
3929 | "not found\n", fsname); | |
3930 | } | |
3931 | } | |
3932 | ||
428870ff BB |
3933 | newname[0] = '\0'; |
3934 | ||
34dc7c2f BB |
3935 | error = recv_rename(hdl, fsname, tryname, |
3936 | strlen(tofs)+1, newname, flags); | |
428870ff BB |
3937 | |
3938 | if (renamed != NULL && newname[0] != '\0') { | |
3939 | VERIFY(0 == nvlist_add_boolean(renamed, | |
3940 | newname)); | |
3941 | } | |
3942 | ||
34dc7c2f BB |
3943 | if (error) |
3944 | needagain = B_TRUE; | |
3945 | else | |
3946 | progress = B_TRUE; | |
3947 | } | |
3948 | } | |
3949 | ||
7509a3d2 | 3950 | doagain: |
34dc7c2f BB |
3951 | fsavl_destroy(local_avl); |
3952 | nvlist_free(local_nv); | |
7509a3d2 | 3953 | nvlist_free(deleted); |
34dc7c2f BB |
3954 | |
3955 | if (needagain && progress) { | |
3956 | /* do another pass to fix up temporary names */ | |
330d06f9 | 3957 | if (flags->verbose) |
34dc7c2f BB |
3958 | (void) printf("another pass:\n"); |
3959 | goto again; | |
3960 | } | |
3961 | ||
b5256303 | 3962 | return (needagain || error != 0); |
34dc7c2f BB |
3963 | } |
3964 | ||
3965 | static int | |
3966 | zfs_receive_package(libzfs_handle_t *hdl, int fd, const char *destname, | |
330d06f9 | 3967 | recvflags_t *flags, dmu_replay_record_t *drr, zio_cksum_t *zc, |
a3eeab2d | 3968 | char **top_zfs, int cleanup_fd, uint64_t *action_handlep, |
3969 | nvlist_t *cmdprops) | |
34dc7c2f BB |
3970 | { |
3971 | nvlist_t *stream_nv = NULL; | |
3972 | avl_tree_t *stream_avl = NULL; | |
3973 | char *fromsnap = NULL; | |
671c9354 | 3974 | char *sendsnap = NULL; |
428870ff | 3975 | char *cp; |
eca7b760 IK |
3976 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; |
3977 | char sendfs[ZFS_MAX_DATASET_NAME_LEN]; | |
34dc7c2f BB |
3978 | char errbuf[1024]; |
3979 | dmu_replay_record_t drre; | |
3980 | int error; | |
3981 | boolean_t anyerr = B_FALSE; | |
3982 | boolean_t softerr = B_FALSE; | |
b5256303 | 3983 | boolean_t recursive, raw; |
34dc7c2f BB |
3984 | |
3985 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3986 | "cannot receive")); | |
3987 | ||
34dc7c2f BB |
3988 | assert(drr->drr_type == DRR_BEGIN); |
3989 | assert(drr->drr_u.drr_begin.drr_magic == DMU_BACKUP_MAGIC); | |
428870ff BB |
3990 | assert(DMU_GET_STREAM_HDRTYPE(drr->drr_u.drr_begin.drr_versioninfo) == |
3991 | DMU_COMPOUNDSTREAM); | |
34dc7c2f BB |
3992 | |
3993 | /* | |
3994 | * Read in the nvlist from the stream. | |
3995 | */ | |
3996 | if (drr->drr_payloadlen != 0) { | |
34dc7c2f | 3997 | error = recv_read_nvlist(hdl, fd, drr->drr_payloadlen, |
330d06f9 | 3998 | &stream_nv, flags->byteswap, zc); |
34dc7c2f BB |
3999 | if (error) { |
4000 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
4001 | goto out; | |
4002 | } | |
4003 | } | |
4004 | ||
428870ff BB |
4005 | recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == |
4006 | ENOENT); | |
b5256303 | 4007 | raw = (nvlist_lookup_boolean(stream_nv, "raw") == 0); |
428870ff BB |
4008 | |
4009 | if (recursive && strchr(destname, '@')) { | |
4010 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4011 | "cannot specify snapshot name for multi-snapshot stream")); | |
4012 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
4013 | goto out; | |
4014 | } | |
4015 | ||
34dc7c2f BB |
4016 | /* |
4017 | * Read in the end record and verify checksum. | |
4018 | */ | |
4019 | if (0 != (error = recv_read(hdl, fd, &drre, sizeof (drre), | |
330d06f9 | 4020 | flags->byteswap, NULL))) |
34dc7c2f | 4021 | goto out; |
330d06f9 | 4022 | if (flags->byteswap) { |
34dc7c2f BB |
4023 | drre.drr_type = BSWAP_32(drre.drr_type); |
4024 | drre.drr_u.drr_end.drr_checksum.zc_word[0] = | |
4025 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[0]); | |
4026 | drre.drr_u.drr_end.drr_checksum.zc_word[1] = | |
4027 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[1]); | |
4028 | drre.drr_u.drr_end.drr_checksum.zc_word[2] = | |
4029 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[2]); | |
4030 | drre.drr_u.drr_end.drr_checksum.zc_word[3] = | |
4031 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[3]); | |
4032 | } | |
4033 | if (drre.drr_type != DRR_END) { | |
4034 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
4035 | goto out; | |
4036 | } | |
4037 | if (!ZIO_CHECKSUM_EQUAL(drre.drr_u.drr_end.drr_checksum, *zc)) { | |
4038 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4039 | "incorrect header checksum")); | |
4040 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
4041 | goto out; | |
4042 | } | |
4043 | ||
4044 | (void) nvlist_lookup_string(stream_nv, "fromsnap", &fromsnap); | |
4045 | ||
4046 | if (drr->drr_payloadlen != 0) { | |
4047 | nvlist_t *stream_fss; | |
4048 | ||
4049 | VERIFY(0 == nvlist_lookup_nvlist(stream_nv, "fss", | |
4050 | &stream_fss)); | |
4051 | if ((stream_avl = fsavl_create(stream_fss)) == NULL) { | |
4052 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4053 | "couldn't allocate avl tree")); | |
4054 | error = zfs_error(hdl, EZFS_NOMEM, errbuf); | |
4055 | goto out; | |
4056 | } | |
4057 | ||
4c3c6b6c | 4058 | if (fromsnap != NULL && recursive) { |
428870ff BB |
4059 | nvlist_t *renamed = NULL; |
4060 | nvpair_t *pair = NULL; | |
4061 | ||
eca7b760 | 4062 | (void) strlcpy(tofs, destname, sizeof (tofs)); |
330d06f9 | 4063 | if (flags->isprefix) { |
428870ff BB |
4064 | struct drr_begin *drrb = &drr->drr_u.drr_begin; |
4065 | int i; | |
4066 | ||
330d06f9 | 4067 | if (flags->istail) { |
428870ff BB |
4068 | cp = strrchr(drrb->drr_toname, '/'); |
4069 | if (cp == NULL) { | |
4070 | (void) strlcat(tofs, "/", | |
eca7b760 | 4071 | sizeof (tofs)); |
428870ff BB |
4072 | i = 0; |
4073 | } else { | |
4074 | i = (cp - drrb->drr_toname); | |
4075 | } | |
4076 | } else { | |
4077 | i = strcspn(drrb->drr_toname, "/@"); | |
4078 | } | |
34dc7c2f | 4079 | /* zfs_receive_one() will create_parents() */ |
428870ff | 4080 | (void) strlcat(tofs, &drrb->drr_toname[i], |
eca7b760 | 4081 | sizeof (tofs)); |
34dc7c2f BB |
4082 | *strchr(tofs, '@') = '\0'; |
4083 | } | |
428870ff | 4084 | |
4c3c6b6c | 4085 | if (!flags->dryrun && !flags->nomount) { |
428870ff BB |
4086 | VERIFY(0 == nvlist_alloc(&renamed, |
4087 | NV_UNIQUE_NAME, 0)); | |
4088 | } | |
4089 | ||
4090 | softerr = recv_incremental_replication(hdl, tofs, flags, | |
4091 | stream_nv, stream_avl, renamed); | |
4092 | ||
4093 | /* Unmount renamed filesystems before receiving. */ | |
4094 | while ((pair = nvlist_next_nvpair(renamed, | |
4095 | pair)) != NULL) { | |
4096 | zfs_handle_t *zhp; | |
4097 | prop_changelist_t *clp = NULL; | |
4098 | ||
4099 | zhp = zfs_open(hdl, nvpair_name(pair), | |
4100 | ZFS_TYPE_FILESYSTEM); | |
4101 | if (zhp != NULL) { | |
4102 | clp = changelist_gather(zhp, | |
a57d3d45 MZ |
4103 | ZFS_PROP_MOUNTPOINT, 0, |
4104 | flags->forceunmount ? MS_FORCE : 0); | |
428870ff BB |
4105 | zfs_close(zhp); |
4106 | if (clp != NULL) { | |
4107 | softerr |= | |
4108 | changelist_prefix(clp); | |
4109 | changelist_free(clp); | |
4110 | } | |
4111 | } | |
4112 | } | |
4113 | ||
4114 | nvlist_free(renamed); | |
34dc7c2f BB |
4115 | } |
4116 | } | |
4117 | ||
428870ff BB |
4118 | /* |
4119 | * Get the fs specified by the first path in the stream (the top level | |
4120 | * specified by 'zfs send') and pass it to each invocation of | |
4121 | * zfs_receive_one(). | |
4122 | */ | |
4123 | (void) strlcpy(sendfs, drr->drr_u.drr_begin.drr_toname, | |
eca7b760 | 4124 | sizeof (sendfs)); |
671c9354 | 4125 | if ((cp = strchr(sendfs, '@')) != NULL) { |
428870ff | 4126 | *cp = '\0'; |
671c9354 DM |
4127 | /* |
4128 | * Find the "sendsnap", the final snapshot in a replication | |
4129 | * stream. zfs_receive_one() handles certain errors | |
4130 | * differently, depending on if the contained stream is the | |
4131 | * last one or not. | |
4132 | */ | |
4133 | sendsnap = (cp + 1); | |
4134 | } | |
34dc7c2f BB |
4135 | |
4136 | /* Finally, receive each contained stream */ | |
4137 | do { | |
4138 | /* | |
4139 | * we should figure out if it has a recoverable | |
4140 | * error, in which case do a recv_skip() and drive on. | |
4141 | * Note, if we fail due to already having this guid, | |
4142 | * zfs_receive_one() will take care of it (ie, | |
4143 | * recv_skip() and return 0). | |
4144 | */ | |
fcff0f35 | 4145 | error = zfs_receive_impl(hdl, destname, NULL, flags, fd, |
572e2857 | 4146 | sendfs, stream_nv, stream_avl, top_zfs, cleanup_fd, |
a3eeab2d | 4147 | action_handlep, sendsnap, cmdprops); |
34dc7c2f BB |
4148 | if (error == ENODATA) { |
4149 | error = 0; | |
4150 | break; | |
4151 | } | |
4152 | anyerr |= error; | |
4153 | } while (error == 0); | |
4154 | ||
4c3c6b6c | 4155 | if (drr->drr_payloadlen != 0 && recursive && fromsnap != NULL) { |
34dc7c2f BB |
4156 | /* |
4157 | * Now that we have the fs's they sent us, try the | |
4158 | * renames again. | |
4159 | */ | |
4160 | softerr = recv_incremental_replication(hdl, tofs, flags, | |
428870ff | 4161 | stream_nv, stream_avl, NULL); |
34dc7c2f BB |
4162 | } |
4163 | ||
bb61cc31 TC |
4164 | if (raw && softerr == 0 && *top_zfs != NULL) { |
4165 | softerr = recv_fix_encryption_hierarchy(hdl, *top_zfs, | |
b5256303 TC |
4166 | stream_nv, stream_avl); |
4167 | } | |
4168 | ||
34dc7c2f BB |
4169 | out: |
4170 | fsavl_destroy(stream_avl); | |
8a5fc748 | 4171 | nvlist_free(stream_nv); |
34dc7c2f BB |
4172 | if (softerr) |
4173 | error = -2; | |
4174 | if (anyerr) | |
4175 | error = -1; | |
4176 | return (error); | |
4177 | } | |
4178 | ||
428870ff BB |
4179 | static void |
4180 | trunc_prop_errs(int truncated) | |
4181 | { | |
4182 | ASSERT(truncated != 0); | |
4183 | ||
4184 | if (truncated == 1) | |
4185 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
4186 | "1 more property could not be set\n")); | |
4187 | else | |
4188 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
4189 | "%d more properties could not be set\n"), truncated); | |
4190 | } | |
4191 | ||
34dc7c2f BB |
4192 | static int |
4193 | recv_skip(libzfs_handle_t *hdl, int fd, boolean_t byteswap) | |
4194 | { | |
4195 | dmu_replay_record_t *drr; | |
f1512ee6 | 4196 | void *buf = zfs_alloc(hdl, SPA_MAXBLOCKSIZE); |
870e7a52 | 4197 | uint64_t payload_size; |
428870ff BB |
4198 | char errbuf[1024]; |
4199 | ||
4200 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
870e7a52 | 4201 | "cannot receive")); |
34dc7c2f BB |
4202 | |
4203 | /* XXX would be great to use lseek if possible... */ | |
4204 | drr = buf; | |
4205 | ||
4206 | while (recv_read(hdl, fd, drr, sizeof (dmu_replay_record_t), | |
4207 | byteswap, NULL) == 0) { | |
4208 | if (byteswap) | |
4209 | drr->drr_type = BSWAP_32(drr->drr_type); | |
4210 | ||
4211 | switch (drr->drr_type) { | |
4212 | case DRR_BEGIN: | |
428870ff | 4213 | if (drr->drr_payloadlen != 0) { |
47dfff3b MA |
4214 | (void) recv_read(hdl, fd, buf, |
4215 | drr->drr_payloadlen, B_FALSE, NULL); | |
428870ff | 4216 | } |
34dc7c2f BB |
4217 | break; |
4218 | ||
4219 | case DRR_END: | |
4220 | free(buf); | |
4221 | return (0); | |
4222 | ||
4223 | case DRR_OBJECT: | |
4224 | if (byteswap) { | |
4225 | drr->drr_u.drr_object.drr_bonuslen = | |
4226 | BSWAP_32(drr->drr_u.drr_object. | |
4227 | drr_bonuslen); | |
870e7a52 TC |
4228 | drr->drr_u.drr_object.drr_raw_bonuslen = |
4229 | BSWAP_32(drr->drr_u.drr_object. | |
4230 | drr_raw_bonuslen); | |
34dc7c2f | 4231 | } |
870e7a52 TC |
4232 | |
4233 | payload_size = | |
4234 | DRR_OBJECT_PAYLOAD_SIZE(&drr->drr_u.drr_object); | |
4235 | (void) recv_read(hdl, fd, buf, payload_size, | |
34dc7c2f BB |
4236 | B_FALSE, NULL); |
4237 | break; | |
4238 | ||
4239 | case DRR_WRITE: | |
4240 | if (byteswap) { | |
2aa34383 DK |
4241 | drr->drr_u.drr_write.drr_logical_size = |
4242 | BSWAP_64( | |
4243 | drr->drr_u.drr_write.drr_logical_size); | |
4244 | drr->drr_u.drr_write.drr_compressed_size = | |
4245 | BSWAP_64( | |
4246 | drr->drr_u.drr_write.drr_compressed_size); | |
34dc7c2f | 4247 | } |
870e7a52 | 4248 | payload_size = |
2aa34383 | 4249 | DRR_WRITE_PAYLOAD_SIZE(&drr->drr_u.drr_write); |
34dc7c2f | 4250 | (void) recv_read(hdl, fd, buf, |
2aa34383 | 4251 | payload_size, B_FALSE, NULL); |
34dc7c2f | 4252 | break; |
428870ff BB |
4253 | case DRR_SPILL: |
4254 | if (byteswap) { | |
9f8026c8 | 4255 | drr->drr_u.drr_spill.drr_length = |
428870ff | 4256 | BSWAP_64(drr->drr_u.drr_spill.drr_length); |
870e7a52 TC |
4257 | drr->drr_u.drr_spill.drr_compressed_size = |
4258 | BSWAP_64(drr->drr_u.drr_spill. | |
4259 | drr_compressed_size); | |
428870ff | 4260 | } |
870e7a52 TC |
4261 | |
4262 | payload_size = | |
4263 | DRR_SPILL_PAYLOAD_SIZE(&drr->drr_u.drr_spill); | |
4264 | (void) recv_read(hdl, fd, buf, payload_size, | |
4265 | B_FALSE, NULL); | |
428870ff | 4266 | break; |
9b67f605 MA |
4267 | case DRR_WRITE_EMBEDDED: |
4268 | if (byteswap) { | |
4269 | drr->drr_u.drr_write_embedded.drr_psize = | |
4270 | BSWAP_32(drr->drr_u.drr_write_embedded. | |
4271 | drr_psize); | |
4272 | } | |
4273 | (void) recv_read(hdl, fd, buf, | |
4274 | P2ROUNDUP(drr->drr_u.drr_write_embedded.drr_psize, | |
4275 | 8), B_FALSE, NULL); | |
4276 | break; | |
30af21b0 | 4277 | case DRR_OBJECT_RANGE: |
428870ff | 4278 | case DRR_WRITE_BYREF: |
34dc7c2f BB |
4279 | case DRR_FREEOBJECTS: |
4280 | case DRR_FREE: | |
4281 | break; | |
4282 | ||
4283 | default: | |
428870ff BB |
4284 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4285 | "invalid record type")); | |
fad5fb01 | 4286 | free(buf); |
428870ff | 4287 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); |
34dc7c2f BB |
4288 | } |
4289 | } | |
4290 | ||
4291 | free(buf); | |
4292 | return (-1); | |
4293 | } | |
4294 | ||
47dfff3b MA |
4295 | static void |
4296 | recv_ecksum_set_aux(libzfs_handle_t *hdl, const char *target_snap, | |
7145123b | 4297 | boolean_t resumable, boolean_t checksum) |
47dfff3b | 4298 | { |
eca7b760 | 4299 | char target_fs[ZFS_MAX_DATASET_NAME_LEN]; |
47dfff3b | 4300 | |
7145123b PD |
4301 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, (checksum ? |
4302 | "checksum mismatch" : "incomplete stream"))); | |
47dfff3b MA |
4303 | |
4304 | if (!resumable) | |
4305 | return; | |
4306 | (void) strlcpy(target_fs, target_snap, sizeof (target_fs)); | |
4307 | *strchr(target_fs, '@') = '\0'; | |
4308 | zfs_handle_t *zhp = zfs_open(hdl, target_fs, | |
4309 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
4310 | if (zhp == NULL) | |
4311 | return; | |
4312 | ||
4313 | char token_buf[ZFS_MAXPROPLEN]; | |
4314 | int error = zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, | |
4315 | token_buf, sizeof (token_buf), | |
4316 | NULL, NULL, 0, B_TRUE); | |
4317 | if (error == 0) { | |
4318 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4319 | "checksum mismatch or incomplete stream.\n" | |
4320 | "Partially received snapshot is saved.\n" | |
4321 | "A resuming stream can be generated on the sending " | |
4322 | "system by running:\n" | |
4323 | " zfs send -t %s"), | |
4324 | token_buf); | |
4325 | } | |
4326 | zfs_close(zhp); | |
4327 | } | |
4328 | ||
a3eeab2d | 4329 | /* |
4330 | * Prepare a new nvlist of properties that are to override (-o) or be excluded | |
4331 | * (-x) from the received dataset | |
4332 | * recvprops: received properties from the send stream | |
4333 | * cmdprops: raw input properties from command line | |
4334 | * origprops: properties, both locally-set and received, currently set on the | |
4335 | * target dataset if it exists, NULL otherwise. | |
4336 | * oxprops: valid output override (-o) and excluded (-x) properties | |
4337 | */ | |
4338 | static int | |
d9c460a0 TC |
4339 | zfs_setup_cmdline_props(libzfs_handle_t *hdl, zfs_type_t type, |
4340 | char *fsname, boolean_t zoned, boolean_t recursive, boolean_t newfs, | |
4341 | boolean_t raw, boolean_t toplevel, nvlist_t *recvprops, nvlist_t *cmdprops, | |
4342 | nvlist_t *origprops, nvlist_t **oxprops, uint8_t **wkeydata_out, | |
4343 | uint_t *wkeylen_out, const char *errbuf) | |
a3eeab2d | 4344 | { |
4345 | nvpair_t *nvp; | |
4346 | nvlist_t *oprops, *voprops; | |
4347 | zfs_handle_t *zhp = NULL; | |
4348 | zpool_handle_t *zpool_hdl = NULL; | |
d9c460a0 | 4349 | char *cp; |
a3eeab2d | 4350 | int ret = 0; |
d9c460a0 | 4351 | char namebuf[ZFS_MAX_DATASET_NAME_LEN]; |
a3eeab2d | 4352 | |
4353 | if (nvlist_empty(cmdprops)) | |
4354 | return (0); /* No properties to override or exclude */ | |
4355 | ||
4356 | *oxprops = fnvlist_alloc(); | |
4357 | oprops = fnvlist_alloc(); | |
4358 | ||
d9c460a0 TC |
4359 | strlcpy(namebuf, fsname, ZFS_MAX_DATASET_NAME_LEN); |
4360 | ||
4361 | /* | |
4362 | * Get our dataset handle. The target dataset may not exist yet. | |
4363 | */ | |
4364 | if (zfs_dataset_exists(hdl, namebuf, ZFS_TYPE_DATASET)) { | |
4365 | zhp = zfs_open(hdl, namebuf, ZFS_TYPE_DATASET); | |
4366 | if (zhp == NULL) { | |
4367 | ret = -1; | |
4368 | goto error; | |
4369 | } | |
4370 | } | |
4371 | ||
4372 | /* open the zpool handle */ | |
4373 | cp = strchr(namebuf, '/'); | |
4374 | if (cp != NULL) | |
4375 | *cp = '\0'; | |
4376 | zpool_hdl = zpool_open(hdl, namebuf); | |
4377 | if (zpool_hdl == NULL) { | |
4378 | ret = -1; | |
4379 | goto error; | |
4380 | } | |
4381 | ||
4382 | /* restore namebuf to match fsname for later use */ | |
4383 | if (cp != NULL) | |
4384 | *cp = '/'; | |
4385 | ||
a3eeab2d | 4386 | /* |
4387 | * first iteration: process excluded (-x) properties now and gather | |
4388 | * added (-o) properties to be later processed by zfs_valid_proplist() | |
4389 | */ | |
4390 | nvp = NULL; | |
4391 | while ((nvp = nvlist_next_nvpair(cmdprops, nvp)) != NULL) { | |
4392 | const char *name = nvpair_name(nvp); | |
4393 | zfs_prop_t prop = zfs_name_to_prop(name); | |
4394 | ||
4395 | /* "origin" is processed separately, don't handle it here */ | |
4396 | if (prop == ZFS_PROP_ORIGIN) | |
4397 | continue; | |
4398 | ||
4399 | /* | |
4400 | * we're trying to override or exclude a property that does not | |
4401 | * make sense for this type of dataset, but we don't want to | |
4402 | * fail if the receive is recursive: this comes in handy when | |
4403 | * the send stream contains, for instance, a child ZVOL and | |
4404 | * we're trying to receive it with "-o atime=on" | |
4405 | */ | |
4406 | if (!zfs_prop_valid_for_type(prop, type, B_FALSE) && | |
4407 | !zfs_prop_user(name)) { | |
4408 | if (recursive) | |
4409 | continue; | |
4410 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4411 | "property '%s' does not apply to datasets of this " | |
4412 | "type"), name); | |
4413 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); | |
4414 | goto error; | |
4415 | } | |
4416 | ||
d9c460a0 TC |
4417 | /* raw streams can't override encryption properties */ |
4418 | if ((zfs_prop_encryption_key_param(prop) || | |
b4238327 | 4419 | prop == ZFS_PROP_ENCRYPTION) && raw) { |
d9c460a0 TC |
4420 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4421 | "encryption property '%s' cannot " | |
b4238327 TC |
4422 | "be set or excluded for raw streams."), name); |
4423 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); | |
4424 | goto error; | |
4425 | } | |
4426 | ||
4427 | /* incremental streams can only exclude encryption properties */ | |
4428 | if ((zfs_prop_encryption_key_param(prop) || | |
4429 | prop == ZFS_PROP_ENCRYPTION) && !newfs && | |
4430 | nvpair_type(nvp) != DATA_TYPE_BOOLEAN) { | |
4431 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4432 | "encryption property '%s' cannot " | |
4433 | "be set for incremental streams."), name); | |
d9c460a0 TC |
4434 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); |
4435 | goto error; | |
4436 | } | |
4437 | ||
a3eeab2d | 4438 | switch (nvpair_type(nvp)) { |
4439 | case DATA_TYPE_BOOLEAN: /* -x property */ | |
4440 | /* | |
4441 | * DATA_TYPE_BOOLEAN is the way we're asked to "exclude" | |
4442 | * a property: this is done by forcing an explicit | |
4443 | * inherit on the destination so the effective value is | |
4444 | * not the one we received from the send stream. | |
4445 | * We do this only if the property is not already | |
4446 | * locally-set, in which case its value will take | |
4447 | * priority over the received anyway. | |
4448 | */ | |
4449 | if (nvlist_exists(origprops, name)) { | |
4450 | nvlist_t *attrs; | |
b4238327 | 4451 | char *source = NULL; |
a3eeab2d | 4452 | |
4453 | attrs = fnvlist_lookup_nvlist(origprops, name); | |
b4238327 TC |
4454 | if (nvlist_lookup_string(attrs, |
4455 | ZPROP_SOURCE, &source) == 0 && | |
4456 | strcmp(source, ZPROP_SOURCE_VAL_RECVD) != 0) | |
a3eeab2d | 4457 | continue; |
4458 | } | |
4459 | /* | |
4460 | * We can't force an explicit inherit on non-inheritable | |
4461 | * properties: if we're asked to exclude this kind of | |
4462 | * values we remove them from "recvprops" input nvlist. | |
4463 | */ | |
4464 | if (!zfs_prop_inheritable(prop) && | |
4465 | !zfs_prop_user(name) && /* can be inherited too */ | |
4466 | nvlist_exists(recvprops, name)) | |
4467 | fnvlist_remove(recvprops, name); | |
4468 | else | |
4469 | fnvlist_add_nvpair(*oxprops, nvp); | |
4470 | break; | |
4471 | case DATA_TYPE_STRING: /* -o property=value */ | |
4472 | fnvlist_add_nvpair(oprops, nvp); | |
4473 | break; | |
4474 | default: | |
4475 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4476 | "property '%s' must be a string or boolean"), name); | |
4477 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); | |
4478 | goto error; | |
4479 | } | |
4480 | } | |
4481 | ||
4482 | if (toplevel) { | |
4483 | /* convert override strings properties to native */ | |
4484 | if ((voprops = zfs_valid_proplist(hdl, ZFS_TYPE_DATASET, | |
b5256303 | 4485 | oprops, zoned, zhp, zpool_hdl, B_FALSE, errbuf)) == NULL) { |
a3eeab2d | 4486 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); |
4487 | goto error; | |
4488 | } | |
4489 | ||
d9c460a0 TC |
4490 | /* |
4491 | * zfs_crypto_create() requires the parent name. Get it | |
4492 | * by truncating the fsname copy stored in namebuf. | |
4493 | */ | |
4494 | cp = strrchr(namebuf, '/'); | |
4495 | if (cp != NULL) | |
4496 | *cp = '\0'; | |
4497 | ||
4498 | if (!raw && zfs_crypto_create(hdl, namebuf, voprops, NULL, | |
4499 | B_FALSE, wkeydata_out, wkeylen_out) != 0) { | |
4500 | fnvlist_free(voprops); | |
4501 | ret = zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf); | |
4502 | goto error; | |
4503 | } | |
4504 | ||
a3eeab2d | 4505 | /* second pass: process "-o" properties */ |
4506 | fnvlist_merge(*oxprops, voprops); | |
4507 | fnvlist_free(voprops); | |
4508 | } else { | |
4509 | /* override props on child dataset are inherited */ | |
4510 | nvp = NULL; | |
4511 | while ((nvp = nvlist_next_nvpair(oprops, nvp)) != NULL) { | |
4512 | const char *name = nvpair_name(nvp); | |
4513 | fnvlist_add_boolean(*oxprops, name); | |
4514 | } | |
4515 | } | |
4516 | ||
4517 | error: | |
d9c460a0 TC |
4518 | if (zhp != NULL) |
4519 | zfs_close(zhp); | |
4520 | if (zpool_hdl != NULL) | |
4521 | zpool_close(zpool_hdl); | |
a3eeab2d | 4522 | fnvlist_free(oprops); |
4523 | return (ret); | |
4524 | } | |
4525 | ||
34dc7c2f BB |
4526 | /* |
4527 | * Restores a backup of tosnap from the file descriptor specified by infd. | |
4528 | */ | |
4529 | static int | |
4530 | zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, | |
fcff0f35 PD |
4531 | const char *originsnap, recvflags_t *flags, dmu_replay_record_t *drr, |
4532 | dmu_replay_record_t *drr_noswap, const char *sendfs, nvlist_t *stream_nv, | |
4533 | avl_tree_t *stream_avl, char **top_zfs, int cleanup_fd, | |
a3eeab2d | 4534 | uint64_t *action_handlep, const char *finalsnap, nvlist_t *cmdprops) |
34dc7c2f | 4535 | { |
34dc7c2f | 4536 | time_t begin_time; |
428870ff | 4537 | int ioctl_err, ioctl_errno, err; |
34dc7c2f BB |
4538 | char *cp; |
4539 | struct drr_begin *drrb = &drr->drr_u.drr_begin; | |
4540 | char errbuf[1024]; | |
428870ff | 4541 | const char *chopprefix; |
34dc7c2f BB |
4542 | boolean_t newfs = B_FALSE; |
4543 | boolean_t stream_wantsnewfs; | |
43e52edd BB |
4544 | boolean_t newprops = B_FALSE; |
4545 | uint64_t read_bytes = 0; | |
4546 | uint64_t errflags = 0; | |
34dc7c2f BB |
4547 | uint64_t parent_snapguid = 0; |
4548 | prop_changelist_t *clp = NULL; | |
b128c09f | 4549 | nvlist_t *snapprops_nvlist = NULL; |
9c5e88b1 | 4550 | nvlist_t *snapholds_nvlist = NULL; |
428870ff | 4551 | zprop_errflags_t prop_errflags; |
43e52edd | 4552 | nvlist_t *prop_errors = NULL; |
428870ff | 4553 | boolean_t recursive; |
671c9354 | 4554 | char *snapname = NULL; |
43e52edd BB |
4555 | char destsnap[MAXPATHLEN * 2]; |
4556 | char origin[MAXNAMELEN]; | |
4557 | char name[MAXPATHLEN]; | |
b5256303 | 4558 | char tmp_keylocation[MAXNAMELEN]; |
a3eeab2d | 4559 | nvlist_t *rcvprops = NULL; /* props received from the send stream */ |
4560 | nvlist_t *oxprops = NULL; /* override (-o) and exclude (-x) props */ | |
4561 | nvlist_t *origprops = NULL; /* original props (if destination exists) */ | |
4562 | zfs_type_t type; | |
bee7e4ff | 4563 | boolean_t toplevel = B_FALSE; |
a3eeab2d | 4564 | boolean_t zoned = B_FALSE; |
c03f0470 | 4565 | boolean_t hastoken = B_FALSE; |
30af21b0 | 4566 | boolean_t redacted; |
d9c460a0 TC |
4567 | uint8_t *wkeydata = NULL; |
4568 | uint_t wkeylen = 0; | |
34dc7c2f BB |
4569 | |
4570 | begin_time = time(NULL); | |
43e52edd | 4571 | bzero(origin, MAXNAMELEN); |
b5256303 | 4572 | bzero(tmp_keylocation, MAXNAMELEN); |
34dc7c2f BB |
4573 | |
4574 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4575 | "cannot receive")); | |
4576 | ||
428870ff BB |
4577 | recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == |
4578 | ENOENT); | |
4579 | ||
9c5e88b1 PZ |
4580 | /* Did the user request holds be skipped via zfs recv -k? */ |
4581 | boolean_t holds = flags->holds && !flags->skipholds; | |
4582 | ||
34dc7c2f | 4583 | if (stream_avl != NULL) { |
b5256303 | 4584 | char *keylocation = NULL; |
48f783de | 4585 | nvlist_t *lookup = NULL; |
b128c09f BB |
4586 | nvlist_t *fs = fsavl_find(stream_avl, drrb->drr_toguid, |
4587 | &snapname); | |
34dc7c2f BB |
4588 | |
4589 | (void) nvlist_lookup_uint64(fs, "parentfromsnap", | |
4590 | &parent_snapguid); | |
a3eeab2d | 4591 | err = nvlist_lookup_nvlist(fs, "props", &rcvprops); |
43e52edd | 4592 | if (err) { |
a3eeab2d | 4593 | VERIFY(0 == nvlist_alloc(&rcvprops, NV_UNIQUE_NAME, 0)); |
43e52edd BB |
4594 | newprops = B_TRUE; |
4595 | } | |
34dc7c2f | 4596 | |
b5256303 TC |
4597 | /* |
4598 | * The keylocation property may only be set on encryption roots, | |
4599 | * but this dataset might not become an encryption root until | |
83472fab | 4600 | * recv_fix_encryption_hierarchy() is called. That function |
b5256303 TC |
4601 | * will fixup the keylocation anyway, so we temporarily unset |
4602 | * the keylocation for now to avoid any errors from the receive | |
4603 | * ioctl. | |
4604 | */ | |
4605 | err = nvlist_lookup_string(rcvprops, | |
4606 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), &keylocation); | |
4607 | if (err == 0) { | |
4608 | strcpy(tmp_keylocation, keylocation); | |
4609 | (void) nvlist_remove_all(rcvprops, | |
4610 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION)); | |
4611 | } | |
4612 | ||
330d06f9 | 4613 | if (flags->canmountoff) { |
a3eeab2d | 4614 | VERIFY(0 == nvlist_add_uint64(rcvprops, |
34dc7c2f | 4615 | zfs_prop_to_name(ZFS_PROP_CANMOUNT), 0)); |
9c5e88b1 PZ |
4616 | } else if (newprops) { /* nothing in rcvprops, eliminate it */ |
4617 | nvlist_free(rcvprops); | |
4618 | rcvprops = NULL; | |
4619 | newprops = B_FALSE; | |
34dc7c2f | 4620 | } |
48f783de | 4621 | if (0 == nvlist_lookup_nvlist(fs, "snapprops", &lookup)) { |
4622 | VERIFY(0 == nvlist_lookup_nvlist(lookup, | |
4623 | snapname, &snapprops_nvlist)); | |
4624 | } | |
9c5e88b1 PZ |
4625 | if (holds) { |
4626 | if (0 == nvlist_lookup_nvlist(fs, "snapholds", | |
4627 | &lookup)) { | |
4628 | VERIFY(0 == nvlist_lookup_nvlist(lookup, | |
4629 | snapname, &snapholds_nvlist)); | |
4630 | } | |
4631 | } | |
34dc7c2f BB |
4632 | } |
4633 | ||
428870ff BB |
4634 | cp = NULL; |
4635 | ||
34dc7c2f BB |
4636 | /* |
4637 | * Determine how much of the snapshot name stored in the stream | |
4638 | * we are going to tack on to the name they specified on the | |
4639 | * command line, and how much we are going to chop off. | |
4640 | * | |
4641 | * If they specified a snapshot, chop the entire name stored in | |
4642 | * the stream. | |
4643 | */ | |
330d06f9 | 4644 | if (flags->istail) { |
428870ff BB |
4645 | /* |
4646 | * A filesystem was specified with -e. We want to tack on only | |
4647 | * the tail of the sent snapshot path. | |
4648 | */ | |
4649 | if (strchr(tosnap, '@')) { | |
4650 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
4651 | "argument - snapshot not allowed with -e")); | |
43e52edd BB |
4652 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); |
4653 | goto out; | |
428870ff BB |
4654 | } |
4655 | ||
4656 | chopprefix = strrchr(sendfs, '/'); | |
4657 | ||
4658 | if (chopprefix == NULL) { | |
4659 | /* | |
4660 | * The tail is the poolname, so we need to | |
4661 | * prepend a path separator. | |
4662 | */ | |
4663 | int len = strlen(drrb->drr_toname); | |
4664 | cp = malloc(len + 2); | |
4665 | cp[0] = '/'; | |
4666 | (void) strcpy(&cp[1], drrb->drr_toname); | |
4667 | chopprefix = cp; | |
4668 | } else { | |
4669 | chopprefix = drrb->drr_toname + (chopprefix - sendfs); | |
4670 | } | |
330d06f9 | 4671 | } else if (flags->isprefix) { |
34dc7c2f | 4672 | /* |
428870ff BB |
4673 | * A filesystem was specified with -d. We want to tack on |
4674 | * everything but the first element of the sent snapshot path | |
4675 | * (all but the pool name). | |
34dc7c2f BB |
4676 | */ |
4677 | if (strchr(tosnap, '@')) { | |
4678 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
4679 | "argument - snapshot not allowed with -d")); | |
43e52edd BB |
4680 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); |
4681 | goto out; | |
34dc7c2f | 4682 | } |
428870ff BB |
4683 | |
4684 | chopprefix = strchr(drrb->drr_toname, '/'); | |
4685 | if (chopprefix == NULL) | |
4686 | chopprefix = strchr(drrb->drr_toname, '@'); | |
34dc7c2f BB |
4687 | } else if (strchr(tosnap, '@') == NULL) { |
4688 | /* | |
428870ff BB |
4689 | * If a filesystem was specified without -d or -e, we want to |
4690 | * tack on everything after the fs specified by 'zfs send'. | |
34dc7c2f | 4691 | */ |
428870ff BB |
4692 | chopprefix = drrb->drr_toname + strlen(sendfs); |
4693 | } else { | |
4694 | /* A snapshot was specified as an exact path (no -d or -e). */ | |
4695 | if (recursive) { | |
4696 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4697 | "cannot specify snapshot name for multi-snapshot " | |
4698 | "stream")); | |
43e52edd BB |
4699 | err = zfs_error(hdl, EZFS_BADSTREAM, errbuf); |
4700 | goto out; | |
428870ff BB |
4701 | } |
4702 | chopprefix = drrb->drr_toname + strlen(drrb->drr_toname); | |
34dc7c2f | 4703 | } |
428870ff BB |
4704 | |
4705 | ASSERT(strstr(drrb->drr_toname, sendfs) == drrb->drr_toname); | |
bdbd5477 | 4706 | ASSERT(chopprefix > drrb->drr_toname || strchr(sendfs, '/') == NULL); |
4707 | ASSERT(chopprefix <= drrb->drr_toname + strlen(drrb->drr_toname) || | |
4708 | strchr(sendfs, '/') == NULL); | |
428870ff BB |
4709 | ASSERT(chopprefix[0] == '/' || chopprefix[0] == '@' || |
4710 | chopprefix[0] == '\0'); | |
34dc7c2f BB |
4711 | |
4712 | /* | |
43e52edd | 4713 | * Determine name of destination snapshot. |
34dc7c2f | 4714 | */ |
45cb520b | 4715 | (void) strlcpy(destsnap, tosnap, sizeof (destsnap)); |
43e52edd | 4716 | (void) strlcat(destsnap, chopprefix, sizeof (destsnap)); |
428870ff | 4717 | free(cp); |
43e52edd BB |
4718 | if (!zfs_name_valid(destsnap, ZFS_TYPE_SNAPSHOT)) { |
4719 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); | |
4720 | goto out; | |
34dc7c2f BB |
4721 | } |
4722 | ||
4723 | /* | |
43e52edd | 4724 | * Determine the name of the origin snapshot. |
34dc7c2f | 4725 | */ |
160af771 | 4726 | if (originsnap) { |
21a4f5cc | 4727 | (void) strlcpy(origin, originsnap, sizeof (origin)); |
160af771 GM |
4728 | if (flags->verbose) |
4729 | (void) printf("using provided clone origin %s\n", | |
4730 | origin); | |
4731 | } else if (drrb->drr_flags & DRR_FLAG_CLONE) { | |
43e52edd BB |
4732 | if (guid_to_name(hdl, destsnap, |
4733 | drrb->drr_fromguid, B_FALSE, origin) != 0) { | |
34dc7c2f BB |
4734 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4735 | "local origin for clone %s does not exist"), | |
43e52edd BB |
4736 | destsnap); |
4737 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4738 | goto out; | |
34dc7c2f | 4739 | } |
330d06f9 | 4740 | if (flags->verbose) |
43e52edd | 4741 | (void) printf("found clone origin %s\n", origin); |
34dc7c2f BB |
4742 | } |
4743 | ||
652bdc9b MA |
4744 | if (!hdl->libzfs_dedup_warning_printed && |
4745 | (DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & | |
4746 | DMU_BACKUP_FEATURE_DEDUP)) { | |
4747 | (void) fprintf(stderr, | |
4748 | gettext("WARNING: This is a deduplicated send stream. " | |
4749 | "The ability to send and\n" | |
4750 | "receive deduplicated send streams is deprecated. " | |
4751 | "In the future, the\n" | |
4752 | "ability to receive a deduplicated send stream with " | |
4753 | "\"zfs receive\" will be\n" | |
4754 | "removed. However, in the future, a utility will be " | |
4755 | "provided to convert a\n" | |
4756 | "deduplicated send stream to a regular " | |
4757 | "(non-deduplicated) stream. This\n" | |
4758 | "future utility will require that the send stream be " | |
4759 | "located in a\n" | |
4760 | "seek-able file, rather than provided by a pipe.\n\n")); | |
4761 | hdl->libzfs_dedup_warning_printed = B_TRUE; | |
4762 | } | |
4763 | ||
47dfff3b MA |
4764 | boolean_t resuming = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4765 | DMU_BACKUP_FEATURE_RESUMING; | |
b5256303 TC |
4766 | boolean_t raw = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4767 | DMU_BACKUP_FEATURE_RAW; | |
9b840763 TC |
4768 | boolean_t embedded = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4769 | DMU_BACKUP_FEATURE_EMBED_DATA; | |
b8864a23 | 4770 | stream_wantsnewfs = (drrb->drr_fromguid == 0 || |
47dfff3b | 4771 | (drrb->drr_flags & DRR_FLAG_CLONE) || originsnap) && !resuming; |
34dc7c2f BB |
4772 | |
4773 | if (stream_wantsnewfs) { | |
4774 | /* | |
4775 | * if the parent fs does not exist, look for it based on | |
4776 | * the parent snap GUID | |
4777 | */ | |
4778 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4779 | "cannot receive new filesystem stream")); | |
4780 | ||
43e52edd BB |
4781 | (void) strcpy(name, destsnap); |
4782 | cp = strrchr(name, '/'); | |
34dc7c2f BB |
4783 | if (cp) |
4784 | *cp = '\0'; | |
4785 | if (cp && | |
43e52edd | 4786 | !zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) { |
eca7b760 | 4787 | char suffix[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4788 | (void) strcpy(suffix, strrchr(destsnap, '/')); |
4789 | if (guid_to_name(hdl, name, parent_snapguid, | |
4790 | B_FALSE, destsnap) == 0) { | |
4791 | *strchr(destsnap, '@') = '\0'; | |
4792 | (void) strcat(destsnap, suffix); | |
34dc7c2f BB |
4793 | } |
4794 | } | |
4795 | } else { | |
4796 | /* | |
ebeb6f23 AG |
4797 | * If the fs does not exist, look for it based on the |
4798 | * fromsnap GUID. | |
34dc7c2f | 4799 | */ |
ebeb6f23 AG |
4800 | if (resuming) { |
4801 | (void) snprintf(errbuf, sizeof (errbuf), | |
4802 | dgettext(TEXT_DOMAIN, | |
4803 | "cannot receive resume stream")); | |
4804 | } else { | |
4805 | (void) snprintf(errbuf, sizeof (errbuf), | |
4806 | dgettext(TEXT_DOMAIN, | |
4807 | "cannot receive incremental stream")); | |
4808 | } | |
34dc7c2f | 4809 | |
43e52edd BB |
4810 | (void) strcpy(name, destsnap); |
4811 | *strchr(name, '@') = '\0'; | |
34dc7c2f | 4812 | |
428870ff BB |
4813 | /* |
4814 | * If the exact receive path was specified and this is the | |
4815 | * topmost path in the stream, then if the fs does not exist we | |
4816 | * should look no further. | |
4817 | */ | |
330d06f9 | 4818 | if ((flags->isprefix || (*(chopprefix = drrb->drr_toname + |
428870ff | 4819 | strlen(sendfs)) != '\0' && *chopprefix != '@')) && |
43e52edd | 4820 | !zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) { |
eca7b760 | 4821 | char snap[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4822 | (void) strcpy(snap, strchr(destsnap, '@')); |
4823 | if (guid_to_name(hdl, name, drrb->drr_fromguid, | |
4824 | B_FALSE, destsnap) == 0) { | |
4825 | *strchr(destsnap, '@') = '\0'; | |
4826 | (void) strcat(destsnap, snap); | |
34dc7c2f BB |
4827 | } |
4828 | } | |
4829 | } | |
4830 | ||
43e52edd BB |
4831 | (void) strcpy(name, destsnap); |
4832 | *strchr(name, '@') = '\0'; | |
34dc7c2f | 4833 | |
30af21b0 PD |
4834 | redacted = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4835 | DMU_BACKUP_FEATURE_REDACTED; | |
4836 | ||
43e52edd BB |
4837 | if (zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) { |
4838 | zfs_cmd_t zc = {"\0"}; | |
34dc7c2f | 4839 | zfs_handle_t *zhp; |
4a385862 | 4840 | boolean_t encrypted; |
428870ff | 4841 | |
43e52edd BB |
4842 | (void) strcpy(zc.zc_name, name); |
4843 | ||
34dc7c2f | 4844 | /* |
47dfff3b MA |
4845 | * Destination fs exists. It must be one of these cases: |
4846 | * - an incremental send stream | |
4847 | * - the stream specifies a new fs (full stream or clone) | |
4848 | * and they want us to blow away the existing fs (and | |
4849 | * have therefore specified -F and removed any snapshots) | |
4850 | * - we are resuming a failed receive. | |
34dc7c2f | 4851 | */ |
34dc7c2f | 4852 | if (stream_wantsnewfs) { |
d8d418ff | 4853 | boolean_t is_volume = drrb->drr_type == DMU_OST_ZVOL; |
330d06f9 | 4854 | if (!flags->force) { |
34dc7c2f BB |
4855 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4856 | "destination '%s' exists\n" | |
43e52edd BB |
4857 | "must specify -F to overwrite it"), name); |
4858 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
4859 | goto out; | |
34dc7c2f | 4860 | } |
b834b58a | 4861 | if (zfs_ioctl(hdl, ZFS_IOC_SNAPSHOT_LIST_NEXT, |
34dc7c2f | 4862 | &zc) == 0) { |
34dc7c2f BB |
4863 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4864 | "destination has snapshots (eg. %s)\n" | |
4865 | "must destroy them to overwrite it"), | |
b53cb02d | 4866 | zc.zc_name); |
43e52edd BB |
4867 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); |
4868 | goto out; | |
34dc7c2f | 4869 | } |
d8d418ff | 4870 | if (is_volume && strrchr(name, '/') == NULL) { |
4871 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4872 | "destination %s is the root dataset\n" | |
4873 | "cannot overwrite with a ZVOL"), | |
4874 | name); | |
4875 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
4876 | goto out; | |
4877 | } | |
4878 | if (is_volume && | |
b834b58a | 4879 | zfs_ioctl(hdl, ZFS_IOC_DATASET_LIST_NEXT, |
d8d418ff | 4880 | &zc) == 0) { |
4881 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4882 | "destination has children (eg. %s)\n" | |
4883 | "cannot overwrite with a ZVOL"), | |
4884 | zc.zc_name); | |
4885 | err = zfs_error(hdl, EZFS_WRONG_PARENT, errbuf); | |
4886 | goto out; | |
4887 | } | |
34dc7c2f BB |
4888 | } |
4889 | ||
43e52edd | 4890 | if ((zhp = zfs_open(hdl, name, |
34dc7c2f | 4891 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) == NULL) { |
43e52edd BB |
4892 | err = -1; |
4893 | goto out; | |
34dc7c2f BB |
4894 | } |
4895 | ||
4896 | if (stream_wantsnewfs && | |
4897 | zhp->zfs_dmustats.dds_origin[0]) { | |
34dc7c2f BB |
4898 | zfs_close(zhp); |
4899 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4900 | "destination '%s' is a clone\n" | |
43e52edd BB |
4901 | "must destroy it to overwrite it"), name); |
4902 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
4903 | goto out; | |
34dc7c2f BB |
4904 | } |
4905 | ||
b5256303 | 4906 | /* |
4a385862 | 4907 | * Raw sends can not be performed as an incremental on top |
78595377 | 4908 | * of existing unencrypted datasets. zfs recv -F can't be |
4a385862 TC |
4909 | * used to blow away an existing encrypted filesystem. This |
4910 | * is because it would require the dsl dir to point to the | |
4911 | * new key (or lack of a key) and the old key at the same | |
4912 | * time. The -F flag may still be used for deleting | |
4913 | * intermediate snapshots that would otherwise prevent the | |
4914 | * receive from working. | |
b5256303 | 4915 | */ |
4a385862 TC |
4916 | encrypted = zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != |
4917 | ZIO_CRYPT_OFF; | |
4918 | if (!stream_wantsnewfs && !encrypted && raw) { | |
b5256303 TC |
4919 | zfs_close(zhp); |
4920 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4a385862 TC |
4921 | "cannot perform raw receive on top of " |
4922 | "existing unencrypted dataset")); | |
b5256303 TC |
4923 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); |
4924 | goto out; | |
4925 | } | |
4926 | ||
4a385862 TC |
4927 | if (stream_wantsnewfs && flags->force && |
4928 | ((raw && !encrypted) || encrypted)) { | |
4929 | zfs_close(zhp); | |
4930 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4931 | "zfs receive -F cannot be used to destroy an " | |
4932 | "encrypted filesystem or overwrite an " | |
4933 | "unencrypted one with an encrypted one")); | |
4934 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); | |
4935 | goto out; | |
4936 | } | |
b5256303 | 4937 | |
330d06f9 | 4938 | if (!flags->dryrun && zhp->zfs_type == ZFS_TYPE_FILESYSTEM && |
34dc7c2f BB |
4939 | stream_wantsnewfs) { |
4940 | /* We can't do online recv in this case */ | |
a57d3d45 MZ |
4941 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
4942 | flags->forceunmount ? MS_FORCE : 0); | |
34dc7c2f | 4943 | if (clp == NULL) { |
45d1cae3 | 4944 | zfs_close(zhp); |
43e52edd BB |
4945 | err = -1; |
4946 | goto out; | |
34dc7c2f BB |
4947 | } |
4948 | if (changelist_prefix(clp) != 0) { | |
4949 | changelist_free(clp); | |
45d1cae3 | 4950 | zfs_close(zhp); |
43e52edd BB |
4951 | err = -1; |
4952 | goto out; | |
34dc7c2f BB |
4953 | } |
4954 | } | |
47dfff3b MA |
4955 | |
4956 | /* | |
4957 | * If we are resuming a newfs, set newfs here so that we will | |
4958 | * mount it if the recv succeeds this time. We can tell | |
4959 | * that it was a newfs on the first recv because the fs | |
4960 | * itself will be inconsistent (if the fs existed when we | |
4961 | * did the first recv, we would have received it into | |
4962 | * .../%recv). | |
4963 | */ | |
4964 | if (resuming && zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT)) | |
4965 | newfs = B_TRUE; | |
4966 | ||
a3eeab2d | 4967 | /* we want to know if we're zoned when validating -o|-x props */ |
4968 | zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); | |
4969 | ||
c03f0470 | 4970 | /* may need this info later, get it now we have zhp around */ |
4971 | if (zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, NULL, 0, | |
4972 | NULL, NULL, 0, B_TRUE) == 0) | |
4973 | hastoken = B_TRUE; | |
4974 | ||
a3eeab2d | 4975 | /* gather existing properties on destination */ |
4976 | origprops = fnvlist_alloc(); | |
4977 | fnvlist_merge(origprops, zhp->zfs_props); | |
4978 | fnvlist_merge(origprops, zhp->zfs_user_props); | |
4979 | ||
34dc7c2f BB |
4980 | zfs_close(zhp); |
4981 | } else { | |
b5256303 TC |
4982 | zfs_handle_t *zhp; |
4983 | ||
34dc7c2f BB |
4984 | /* |
4985 | * Destination filesystem does not exist. Therefore we better | |
4986 | * be creating a new filesystem (either from a full backup, or | |
4987 | * a clone). It would therefore be invalid if the user | |
4988 | * specified only the pool name (i.e. if the destination name | |
4989 | * contained no slash character). | |
4990 | */ | |
a64f903b GN |
4991 | cp = strrchr(name, '/'); |
4992 | ||
4993 | if (!stream_wantsnewfs || cp == NULL) { | |
34dc7c2f | 4994 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
43e52edd BB |
4995 | "destination '%s' does not exist"), name); |
4996 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4997 | goto out; | |
34dc7c2f BB |
4998 | } |
4999 | ||
5000 | /* | |
5001 | * Trim off the final dataset component so we perform the | |
5002 | * recvbackup ioctl to the filesystems's parent. | |
5003 | */ | |
5004 | *cp = '\0'; | |
5005 | ||
330d06f9 | 5006 | if (flags->isprefix && !flags->istail && !flags->dryrun && |
43e52edd BB |
5007 | create_parents(hdl, destsnap, strlen(tosnap)) != 0) { |
5008 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); | |
5009 | goto out; | |
34dc7c2f BB |
5010 | } |
5011 | ||
d8d418ff | 5012 | /* validate parent */ |
5013 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); | |
5014 | if (zhp == NULL) { | |
5015 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); | |
5016 | goto out; | |
5017 | } | |
5018 | if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { | |
5019 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5020 | "parent '%s' is not a filesystem"), name); | |
5021 | err = zfs_error(hdl, EZFS_WRONG_PARENT, errbuf); | |
5022 | zfs_close(zhp); | |
5023 | goto out; | |
5024 | } | |
5025 | ||
d8d418ff | 5026 | zfs_close(zhp); |
b5256303 | 5027 | |
34dc7c2f | 5028 | newfs = B_TRUE; |
b5256303 | 5029 | *cp = '/'; |
34dc7c2f BB |
5030 | } |
5031 | ||
330d06f9 | 5032 | if (flags->verbose) { |
34dc7c2f | 5033 | (void) printf("%s %s stream of %s into %s\n", |
330d06f9 | 5034 | flags->dryrun ? "would receive" : "receiving", |
34dc7c2f | 5035 | drrb->drr_fromguid ? "incremental" : "full", |
43e52edd | 5036 | drrb->drr_toname, destsnap); |
34dc7c2f BB |
5037 | (void) fflush(stdout); |
5038 | } | |
5039 | ||
330d06f9 | 5040 | if (flags->dryrun) { |
870e7a52 TC |
5041 | void *buf = zfs_alloc(hdl, SPA_MAXBLOCKSIZE); |
5042 | ||
5043 | /* | |
5044 | * We have read the DRR_BEGIN record, but we have | |
5045 | * not yet read the payload. For non-dryrun sends | |
5046 | * this will be done by the kernel, so we must | |
5047 | * emulate that here, before attempting to read | |
5048 | * more records. | |
5049 | */ | |
5050 | err = recv_read(hdl, infd, buf, drr->drr_payloadlen, | |
5051 | flags->byteswap, NULL); | |
5052 | free(buf); | |
5053 | if (err != 0) | |
5054 | goto out; | |
5055 | ||
43e52edd BB |
5056 | err = recv_skip(hdl, infd, flags->byteswap); |
5057 | goto out; | |
34dc7c2f BB |
5058 | } |
5059 | ||
bb61cc31 TC |
5060 | /* |
5061 | * If this is the top-level dataset, record it so we can use it | |
5062 | * for recursive operations later. | |
5063 | */ | |
5064 | if (top_zfs != NULL && | |
5065 | (*top_zfs == NULL || strcmp(*top_zfs, name) == 0)) { | |
bee7e4ff | 5066 | toplevel = B_TRUE; |
bb61cc31 TC |
5067 | if (*top_zfs == NULL) |
5068 | *top_zfs = zfs_strdup(hdl, name); | |
5069 | } | |
5070 | ||
a3eeab2d | 5071 | if (drrb->drr_type == DMU_OST_ZVOL) { |
5072 | type = ZFS_TYPE_VOLUME; | |
5073 | } else if (drrb->drr_type == DMU_OST_ZFS) { | |
5074 | type = ZFS_TYPE_FILESYSTEM; | |
5075 | } else { | |
5076 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5077 | "invalid record type: 0x%d"), drrb->drr_type); | |
5078 | err = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5079 | goto out; | |
5080 | } | |
d9c460a0 TC |
5081 | if ((err = zfs_setup_cmdline_props(hdl, type, name, zoned, recursive, |
5082 | stream_wantsnewfs, raw, toplevel, rcvprops, cmdprops, origprops, | |
5083 | &oxprops, &wkeydata, &wkeylen, errbuf)) != 0) | |
a3eeab2d | 5084 | goto out; |
5085 | ||
da689887 TC |
5086 | /* |
5087 | * When sending with properties (zfs send -p), the encryption property | |
5088 | * is not included because it is a SETONCE property and therefore | |
5089 | * treated as read only. However, we are always able to determine its | |
5090 | * value because raw sends will include it in the DRR_BDEGIN payload | |
5091 | * and non-raw sends with properties are not allowed for encrypted | |
5092 | * datasets. Therefore, if this is a non-raw properties stream, we can | |
5093 | * infer that the value should be ZIO_CRYPT_OFF and manually add that | |
5094 | * to the received properties. | |
5095 | */ | |
5096 | if (stream_wantsnewfs && !raw && rcvprops != NULL && | |
5097 | !nvlist_exists(cmdprops, zfs_prop_to_name(ZFS_PROP_ENCRYPTION))) { | |
5098 | if (oxprops == NULL) | |
5099 | oxprops = fnvlist_alloc(); | |
5100 | fnvlist_add_uint64(oxprops, | |
5101 | zfs_prop_to_name(ZFS_PROP_ENCRYPTION), ZIO_CRYPT_OFF); | |
5102 | } | |
5103 | ||
d9c460a0 TC |
5104 | err = ioctl_err = lzc_receive_with_cmdprops(destsnap, rcvprops, |
5105 | oxprops, wkeydata, wkeylen, origin, flags->force, flags->resumable, | |
5106 | raw, infd, drr_noswap, cleanup_fd, &read_bytes, &errflags, | |
5107 | action_handlep, &prop_errors); | |
43e52edd BB |
5108 | ioctl_errno = ioctl_err; |
5109 | prop_errflags = errflags; | |
428870ff BB |
5110 | |
5111 | if (err == 0) { | |
428870ff BB |
5112 | nvpair_t *prop_err = NULL; |
5113 | ||
5114 | while ((prop_err = nvlist_next_nvpair(prop_errors, | |
5115 | prop_err)) != NULL) { | |
5116 | char tbuf[1024]; | |
5117 | zfs_prop_t prop; | |
5118 | int intval; | |
5119 | ||
5120 | prop = zfs_name_to_prop(nvpair_name(prop_err)); | |
5121 | (void) nvpair_value_int32(prop_err, &intval); | |
5122 | if (strcmp(nvpair_name(prop_err), | |
5123 | ZPROP_N_MORE_ERRORS) == 0) { | |
5124 | trunc_prop_errs(intval); | |
5125 | break; | |
671c9354 DM |
5126 | } else if (snapname == NULL || finalsnap == NULL || |
5127 | strcmp(finalsnap, snapname) == 0 || | |
5128 | strcmp(nvpair_name(prop_err), | |
5129 | zfs_prop_to_name(ZFS_PROP_REFQUOTA)) != 0) { | |
5130 | /* | |
5131 | * Skip the special case of, for example, | |
5132 | * "refquota", errors on intermediate | |
5133 | * snapshots leading up to a final one. | |
5134 | * That's why we have all of the checks above. | |
5135 | * | |
5136 | * See zfs_ioctl.c's extract_delay_props() for | |
5137 | * a list of props which can fail on | |
5138 | * intermediate snapshots, but shouldn't | |
5139 | * affect the overall receive. | |
5140 | */ | |
428870ff BB |
5141 | (void) snprintf(tbuf, sizeof (tbuf), |
5142 | dgettext(TEXT_DOMAIN, | |
5143 | "cannot receive %s property on %s"), | |
43e52edd | 5144 | nvpair_name(prop_err), name); |
428870ff BB |
5145 | zfs_setprop_error(hdl, prop, intval, tbuf); |
5146 | } | |
5147 | } | |
428870ff BB |
5148 | } |
5149 | ||
b128c09f | 5150 | if (err == 0 && snapprops_nvlist) { |
43e52edd | 5151 | zfs_cmd_t zc = {"\0"}; |
b128c09f | 5152 | |
43e52edd BB |
5153 | (void) strcpy(zc.zc_name, destsnap); |
5154 | zc.zc_cookie = B_TRUE; /* received */ | |
5155 | if (zcmd_write_src_nvlist(hdl, &zc, snapprops_nvlist) == 0) { | |
5156 | (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
5157 | zcmd_free_nvlists(&zc); | |
b128c09f BB |
5158 | } |
5159 | } | |
9c5e88b1 PZ |
5160 | if (err == 0 && snapholds_nvlist) { |
5161 | nvpair_t *pair; | |
5162 | nvlist_t *holds, *errors = NULL; | |
5163 | int cleanup_fd = -1; | |
5164 | ||
5165 | VERIFY(0 == nvlist_alloc(&holds, 0, KM_SLEEP)); | |
5166 | for (pair = nvlist_next_nvpair(snapholds_nvlist, NULL); | |
5167 | pair != NULL; | |
5168 | pair = nvlist_next_nvpair(snapholds_nvlist, pair)) { | |
5169 | VERIFY(0 == nvlist_add_string(holds, destsnap, | |
5170 | nvpair_name(pair))); | |
5171 | } | |
5172 | (void) lzc_hold(holds, cleanup_fd, &errors); | |
5173 | nvlist_free(snapholds_nvlist); | |
5174 | nvlist_free(holds); | |
5175 | } | |
b128c09f | 5176 | |
428870ff | 5177 | if (err && (ioctl_errno == ENOENT || ioctl_errno == EEXIST)) { |
34dc7c2f BB |
5178 | /* |
5179 | * It may be that this snapshot already exists, | |
5180 | * in which case we want to consume & ignore it | |
5181 | * rather than failing. | |
5182 | */ | |
5183 | avl_tree_t *local_avl; | |
5184 | nvlist_t *local_nv, *fs; | |
43e52edd | 5185 | cp = strchr(destsnap, '@'); |
34dc7c2f BB |
5186 | |
5187 | /* | |
5188 | * XXX Do this faster by just iterating over snaps in | |
5189 | * this fs. Also if zc_value does not exist, we will | |
5190 | * get a strange "does not exist" error message. | |
5191 | */ | |
5192 | *cp = '\0'; | |
b5256303 | 5193 | if (gather_nvlist(hdl, destsnap, NULL, NULL, B_FALSE, B_TRUE, |
f94b3cbf TC |
5194 | B_FALSE, B_FALSE, B_FALSE, B_FALSE, B_FALSE, B_TRUE, |
5195 | &local_nv, &local_avl) == 0) { | |
34dc7c2f BB |
5196 | *cp = '@'; |
5197 | fs = fsavl_find(local_avl, drrb->drr_toguid, NULL); | |
5198 | fsavl_destroy(local_avl); | |
5199 | nvlist_free(local_nv); | |
5200 | ||
5201 | if (fs != NULL) { | |
330d06f9 | 5202 | if (flags->verbose) { |
34dc7c2f | 5203 | (void) printf("snap %s already exists; " |
43e52edd | 5204 | "ignoring\n", destsnap); |
34dc7c2f | 5205 | } |
428870ff | 5206 | err = ioctl_err = recv_skip(hdl, infd, |
330d06f9 | 5207 | flags->byteswap); |
34dc7c2f BB |
5208 | } |
5209 | } | |
5210 | *cp = '@'; | |
5211 | } | |
5212 | ||
34dc7c2f BB |
5213 | if (ioctl_err != 0) { |
5214 | switch (ioctl_errno) { | |
5215 | case ENODEV: | |
43e52edd | 5216 | cp = strchr(destsnap, '@'); |
34dc7c2f BB |
5217 | *cp = '\0'; |
5218 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5219 | "most recent snapshot of %s does not\n" | |
43e52edd | 5220 | "match incremental source"), destsnap); |
34dc7c2f BB |
5221 | (void) zfs_error(hdl, EZFS_BADRESTORE, errbuf); |
5222 | *cp = '@'; | |
5223 | break; | |
5224 | case ETXTBSY: | |
5225 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5226 | "destination %s has been modified\n" | |
43e52edd | 5227 | "since most recent snapshot"), name); |
34dc7c2f BB |
5228 | (void) zfs_error(hdl, EZFS_BADRESTORE, errbuf); |
5229 | break; | |
b5256303 TC |
5230 | case EACCES: |
5231 | if (raw && stream_wantsnewfs) { | |
5232 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5233 | "failed to create encryption key")); | |
5234 | } else if (raw && !stream_wantsnewfs) { | |
5235 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5236 | "encryption key does not match " | |
5237 | "existing key")); | |
5238 | } else { | |
5239 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5240 | "inherited key must be loaded")); | |
5241 | } | |
5242 | (void) zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf); | |
5243 | break; | |
34dc7c2f | 5244 | case EEXIST: |
43e52edd | 5245 | cp = strchr(destsnap, '@'); |
34dc7c2f BB |
5246 | if (newfs) { |
5247 | /* it's the containing fs that exists */ | |
5248 | *cp = '\0'; | |
5249 | } | |
5250 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5251 | "destination already exists")); | |
5252 | (void) zfs_error_fmt(hdl, EZFS_EXISTS, | |
5253 | dgettext(TEXT_DOMAIN, "cannot restore to %s"), | |
43e52edd | 5254 | destsnap); |
34dc7c2f BB |
5255 | *cp = '@'; |
5256 | break; | |
5257 | case EINVAL: | |
2ba59fa9 | 5258 | if (flags->resumable) { |
43e52edd BB |
5259 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
5260 | "kernel modules must be upgraded to " | |
5261 | "receive this stream.")); | |
2ba59fa9 | 5262 | } else if (embedded && !raw) { |
9b840763 TC |
5263 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
5264 | "incompatible embedded data stream " | |
5265 | "feature with encrypted receive.")); | |
2ba59fa9 | 5266 | } |
34dc7c2f BB |
5267 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); |
5268 | break; | |
5269 | case ECKSUM: | |
7145123b PD |
5270 | case ZFS_ERR_STREAM_TRUNCATED: |
5271 | recv_ecksum_set_aux(hdl, destsnap, flags->resumable, | |
5272 | ioctl_err == ECKSUM); | |
34dc7c2f BB |
5273 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); |
5274 | break; | |
428870ff BB |
5275 | case ENOTSUP: |
5276 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5277 | "pool must be upgraded to receive this stream.")); | |
5278 | (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
5279 | break; | |
5280 | case EDQUOT: | |
5281 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
c03f0470 | 5282 | "destination %s space quota exceeded."), name); |
330d06f9 | 5283 | (void) zfs_error(hdl, EZFS_NOSPC, errbuf); |
428870ff | 5284 | break; |
f00ab3f2 TC |
5285 | case ZFS_ERR_FROM_IVSET_GUID_MISSING: |
5286 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
73c25a78 | 5287 | "IV set guid missing. See errata %u at " |
e458fcca | 5288 | "https://zfsonlinux.org/msg/ZFS-8000-ER."), |
f00ab3f2 TC |
5289 | ZPOOL_ERRATA_ZOL_8308_ENCRYPTION); |
5290 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5291 | break; | |
5292 | case ZFS_ERR_FROM_IVSET_GUID_MISMATCH: | |
5293 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5294 | "IV set guid mismatch. See the 'zfs receive' " | |
5295 | "man page section\n discussing the limitations " | |
5296 | "of raw encrypted send streams.")); | |
5297 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5298 | break; | |
caf9dd20 BB |
5299 | case ZFS_ERR_SPILL_BLOCK_FLAG_MISSING: |
5300 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5301 | "Spill block flag missing for raw send.\n" | |
5302 | "The zfs software on the sending system must " | |
5303 | "be updated.")); | |
5304 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5305 | break; | |
c03f0470 | 5306 | case EBUSY: |
5307 | if (hastoken) { | |
5308 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5309 | "destination %s contains " | |
5310 | "partially-complete state from " | |
5311 | "\"zfs receive -s\"."), name); | |
5312 | (void) zfs_error(hdl, EZFS_BUSY, errbuf); | |
5313 | break; | |
5314 | } | |
5315 | /* fallthru */ | |
34dc7c2f BB |
5316 | default: |
5317 | (void) zfs_standard_error(hdl, ioctl_errno, errbuf); | |
5318 | } | |
5319 | } | |
5320 | ||
5321 | /* | |
428870ff BB |
5322 | * Mount the target filesystem (if created). Also mount any |
5323 | * children of the target filesystem if we did a replication | |
5324 | * receive (indicated by stream_avl being non-NULL). | |
34dc7c2f | 5325 | */ |
34dc7c2f | 5326 | if (clp) { |
89d43feb GM |
5327 | if (!flags->nomount) |
5328 | err |= changelist_postfix(clp); | |
34dc7c2f BB |
5329 | changelist_free(clp); |
5330 | } | |
5331 | ||
bb61cc31 TC |
5332 | if ((newfs || stream_avl) && type == ZFS_TYPE_FILESYSTEM && !redacted) |
5333 | flags->domount = B_TRUE; | |
5334 | ||
428870ff BB |
5335 | if (prop_errflags & ZPROP_ERR_NOCLEAR) { |
5336 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: " | |
43e52edd | 5337 | "failed to clear unreceived properties on %s"), name); |
428870ff BB |
5338 | (void) fprintf(stderr, "\n"); |
5339 | } | |
5340 | if (prop_errflags & ZPROP_ERR_NORESTORE) { | |
5341 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: " | |
43e52edd | 5342 | "failed to restore original properties on %s"), name); |
428870ff BB |
5343 | (void) fprintf(stderr, "\n"); |
5344 | } | |
5345 | ||
43e52edd BB |
5346 | if (err || ioctl_err) { |
5347 | err = -1; | |
5348 | goto out; | |
5349 | } | |
572e2857 | 5350 | |
330d06f9 | 5351 | if (flags->verbose) { |
34dc7c2f BB |
5352 | char buf1[64]; |
5353 | char buf2[64]; | |
43e52edd | 5354 | uint64_t bytes = read_bytes; |
34dc7c2f BB |
5355 | time_t delta = time(NULL) - begin_time; |
5356 | if (delta == 0) | |
5357 | delta = 1; | |
e7fbeb60 | 5358 | zfs_nicebytes(bytes, buf1, sizeof (buf1)); |
5359 | zfs_nicebytes(bytes/delta, buf2, sizeof (buf1)); | |
34dc7c2f | 5360 | |
e7fbeb60 | 5361 | (void) printf("received %s stream in %lu seconds (%s/sec)\n", |
34dc7c2f BB |
5362 | buf1, delta, buf2); |
5363 | } | |
5364 | ||
43e52edd BB |
5365 | err = 0; |
5366 | out: | |
5367 | if (prop_errors != NULL) | |
5368 | nvlist_free(prop_errors); | |
5369 | ||
b5256303 TC |
5370 | if (tmp_keylocation[0] != '\0') { |
5371 | VERIFY(0 == nvlist_add_string(rcvprops, | |
5372 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), tmp_keylocation)); | |
5373 | } | |
5374 | ||
43e52edd | 5375 | if (newprops) |
a3eeab2d | 5376 | nvlist_free(rcvprops); |
5377 | ||
5378 | nvlist_free(oxprops); | |
5379 | nvlist_free(origprops); | |
43e52edd BB |
5380 | |
5381 | return (err); | |
34dc7c2f BB |
5382 | } |
5383 | ||
a3eeab2d | 5384 | /* |
5385 | * Check properties we were asked to override (both -o|-x) | |
5386 | */ | |
5387 | static boolean_t | |
5388 | zfs_receive_checkprops(libzfs_handle_t *hdl, nvlist_t *props, | |
5389 | const char *errbuf) | |
5390 | { | |
5391 | nvpair_t *nvp; | |
5392 | zfs_prop_t prop; | |
5393 | const char *name; | |
5394 | ||
5395 | nvp = NULL; | |
5396 | while ((nvp = nvlist_next_nvpair(props, nvp)) != NULL) { | |
5397 | name = nvpair_name(nvp); | |
5398 | prop = zfs_name_to_prop(name); | |
5399 | ||
5400 | if (prop == ZPROP_INVAL) { | |
5401 | if (!zfs_prop_user(name)) { | |
5402 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5403 | "invalid property '%s'"), name); | |
5404 | return (B_FALSE); | |
5405 | } | |
5406 | continue; | |
5407 | } | |
5408 | /* | |
5409 | * "origin" is readonly but is used to receive datasets as | |
5410 | * clones so we don't raise an error here | |
5411 | */ | |
5412 | if (prop == ZFS_PROP_ORIGIN) | |
5413 | continue; | |
5414 | ||
d9c460a0 TC |
5415 | /* encryption params have their own verification later */ |
5416 | if (prop == ZFS_PROP_ENCRYPTION || | |
5417 | zfs_prop_encryption_key_param(prop)) | |
5418 | continue; | |
5419 | ||
a3eeab2d | 5420 | /* |
5421 | * cannot override readonly, set-once and other specific | |
5422 | * settable properties | |
5423 | */ | |
5424 | if (zfs_prop_readonly(prop) || prop == ZFS_PROP_VERSION || | |
5425 | prop == ZFS_PROP_VOLSIZE) { | |
5426 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5427 | "invalid property '%s'"), name); | |
5428 | return (B_FALSE); | |
5429 | } | |
5430 | } | |
5431 | ||
5432 | return (B_TRUE); | |
5433 | } | |
5434 | ||
b128c09f | 5435 | static int |
fcff0f35 PD |
5436 | zfs_receive_impl(libzfs_handle_t *hdl, const char *tosnap, |
5437 | const char *originsnap, recvflags_t *flags, int infd, const char *sendfs, | |
5438 | nvlist_t *stream_nv, avl_tree_t *stream_avl, char **top_zfs, int cleanup_fd, | |
a3eeab2d | 5439 | uint64_t *action_handlep, const char *finalsnap, nvlist_t *cmdprops) |
34dc7c2f BB |
5440 | { |
5441 | int err; | |
5442 | dmu_replay_record_t drr, drr_noswap; | |
5443 | struct drr_begin *drrb = &drr.drr_u.drr_begin; | |
5444 | char errbuf[1024]; | |
2598c001 | 5445 | zio_cksum_t zcksum = { { 0 } }; |
428870ff BB |
5446 | uint64_t featureflags; |
5447 | int hdrtype; | |
34dc7c2f BB |
5448 | |
5449 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
5450 | "cannot receive")); | |
5451 | ||
a3eeab2d | 5452 | /* check cmdline props, raise an error if they cannot be received */ |
5453 | if (!zfs_receive_checkprops(hdl, cmdprops, errbuf)) { | |
5454 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
5455 | } | |
5456 | ||
330d06f9 | 5457 | if (flags->isprefix && |
34dc7c2f BB |
5458 | !zfs_dataset_exists(hdl, tosnap, ZFS_TYPE_DATASET)) { |
5459 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "specified fs " | |
5460 | "(%s) does not exist"), tosnap); | |
5461 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
5462 | } | |
fcff0f35 PD |
5463 | if (originsnap && |
5464 | !zfs_dataset_exists(hdl, originsnap, ZFS_TYPE_DATASET)) { | |
5465 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "specified origin fs " | |
5466 | "(%s) does not exist"), originsnap); | |
5467 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
5468 | } | |
34dc7c2f BB |
5469 | |
5470 | /* read in the BEGIN record */ | |
5471 | if (0 != (err = recv_read(hdl, infd, &drr, sizeof (drr), B_FALSE, | |
5472 | &zcksum))) | |
5473 | return (err); | |
5474 | ||
5475 | if (drr.drr_type == DRR_END || drr.drr_type == BSWAP_32(DRR_END)) { | |
5476 | /* It's the double end record at the end of a package */ | |
5477 | return (ENODATA); | |
5478 | } | |
5479 | ||
5480 | /* the kernel needs the non-byteswapped begin record */ | |
5481 | drr_noswap = drr; | |
5482 | ||
330d06f9 | 5483 | flags->byteswap = B_FALSE; |
34dc7c2f BB |
5484 | if (drrb->drr_magic == BSWAP_64(DMU_BACKUP_MAGIC)) { |
5485 | /* | |
5486 | * We computed the checksum in the wrong byteorder in | |
5487 | * recv_read() above; do it again correctly. | |
5488 | */ | |
5489 | bzero(&zcksum, sizeof (zio_cksum_t)); | |
5490 | fletcher_4_incremental_byteswap(&drr, sizeof (drr), &zcksum); | |
330d06f9 | 5491 | flags->byteswap = B_TRUE; |
34dc7c2f BB |
5492 | |
5493 | drr.drr_type = BSWAP_32(drr.drr_type); | |
5494 | drr.drr_payloadlen = BSWAP_32(drr.drr_payloadlen); | |
5495 | drrb->drr_magic = BSWAP_64(drrb->drr_magic); | |
428870ff | 5496 | drrb->drr_versioninfo = BSWAP_64(drrb->drr_versioninfo); |
34dc7c2f BB |
5497 | drrb->drr_creation_time = BSWAP_64(drrb->drr_creation_time); |
5498 | drrb->drr_type = BSWAP_32(drrb->drr_type); | |
5499 | drrb->drr_flags = BSWAP_32(drrb->drr_flags); | |
5500 | drrb->drr_toguid = BSWAP_64(drrb->drr_toguid); | |
5501 | drrb->drr_fromguid = BSWAP_64(drrb->drr_fromguid); | |
5502 | } | |
5503 | ||
5504 | if (drrb->drr_magic != DMU_BACKUP_MAGIC || drr.drr_type != DRR_BEGIN) { | |
5505 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
5506 | "stream (bad magic number)")); | |
5507 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); | |
5508 | } | |
5509 | ||
428870ff BB |
5510 | featureflags = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo); |
5511 | hdrtype = DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo); | |
5512 | ||
5513 | if (!DMU_STREAM_SUPPORTED(featureflags) || | |
5514 | (hdrtype != DMU_SUBSTREAM && hdrtype != DMU_COMPOUNDSTREAM)) { | |
5515 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5516 | "stream has unsupported feature, feature flags = %lx"), | |
5517 | featureflags); | |
5518 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); | |
5519 | } | |
5520 | ||
9c5e88b1 | 5521 | /* Holds feature is set once in the compound stream header. */ |
c618f87c | 5522 | if (featureflags & DMU_BACKUP_FEATURE_HOLDS) |
9c5e88b1 PZ |
5523 | flags->holds = B_TRUE; |
5524 | ||
34dc7c2f BB |
5525 | if (strchr(drrb->drr_toname, '@') == NULL) { |
5526 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
5527 | "stream (bad snapshot name)")); | |
5528 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); | |
5529 | } | |
5530 | ||
428870ff | 5531 | if (DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == DMU_SUBSTREAM) { |
eca7b760 | 5532 | char nonpackage_sendfs[ZFS_MAX_DATASET_NAME_LEN]; |
428870ff BB |
5533 | if (sendfs == NULL) { |
5534 | /* | |
5535 | * We were not called from zfs_receive_package(). Get | |
5536 | * the fs specified by 'zfs send'. | |
5537 | */ | |
5538 | char *cp; | |
5539 | (void) strlcpy(nonpackage_sendfs, | |
eca7b760 IK |
5540 | drr.drr_u.drr_begin.drr_toname, |
5541 | sizeof (nonpackage_sendfs)); | |
428870ff BB |
5542 | if ((cp = strchr(nonpackage_sendfs, '@')) != NULL) |
5543 | *cp = '\0'; | |
5544 | sendfs = nonpackage_sendfs; | |
671c9354 | 5545 | VERIFY(finalsnap == NULL); |
428870ff | 5546 | } |
fcff0f35 PD |
5547 | return (zfs_receive_one(hdl, infd, tosnap, originsnap, flags, |
5548 | &drr, &drr_noswap, sendfs, stream_nv, stream_avl, top_zfs, | |
a3eeab2d | 5549 | cleanup_fd, action_handlep, finalsnap, cmdprops)); |
428870ff BB |
5550 | } else { |
5551 | assert(DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == | |
5552 | DMU_COMPOUNDSTREAM); | |
fcff0f35 | 5553 | return (zfs_receive_package(hdl, infd, tosnap, flags, &drr, |
a3eeab2d | 5554 | &zcksum, top_zfs, cleanup_fd, action_handlep, cmdprops)); |
34dc7c2f BB |
5555 | } |
5556 | } | |
b128c09f BB |
5557 | |
5558 | /* | |
5559 | * Restores a backup of tosnap from the file descriptor specified by infd. | |
5560 | * Return 0 on total success, -2 if some things couldn't be | |
5561 | * destroyed/renamed/promoted, -1 if some things couldn't be received. | |
47dfff3b MA |
5562 | * (-1 will override -2, if -1 and the resumable flag was specified the |
5563 | * transfer can be resumed if the sending side supports it). | |
b128c09f BB |
5564 | */ |
5565 | int | |
fcff0f35 PD |
5566 | zfs_receive(libzfs_handle_t *hdl, const char *tosnap, nvlist_t *props, |
5567 | recvflags_t *flags, int infd, avl_tree_t *stream_avl) | |
b128c09f BB |
5568 | { |
5569 | char *top_zfs = NULL; | |
5570 | int err; | |
572e2857 BB |
5571 | int cleanup_fd; |
5572 | uint64_t action_handle = 0; | |
5c3f61eb | 5573 | struct stat sb; |
fcff0f35 | 5574 | char *originsnap = NULL; |
5c3f61eb RY |
5575 | |
5576 | /* | |
5577 | * The only way fstat can fail is if we do not have a valid file | |
5578 | * descriptor. | |
5579 | */ | |
5580 | if (fstat(infd, &sb) == -1) { | |
5581 | perror("fstat"); | |
5582 | return (-2); | |
5583 | } | |
5584 | ||
5c3f61eb RY |
5585 | /* |
5586 | * It is not uncommon for gigabytes to be processed in zfs receive. | |
73cdcc63 | 5587 | * Speculatively increase the buffer size if supported by the platform. |
5c3f61eb | 5588 | */ |
73cdcc63 MM |
5589 | if (S_ISFIFO(sb.st_mode)) |
5590 | libzfs_set_pipe_max(infd); | |
572e2857 | 5591 | |
fcff0f35 PD |
5592 | if (props) { |
5593 | err = nvlist_lookup_string(props, "origin", &originsnap); | |
5594 | if (err && err != ENOENT) | |
5595 | return (err); | |
5596 | } | |
5597 | ||
d32eff3a | 5598 | cleanup_fd = open(ZFS_DEV, O_RDWR); |
572e2857 | 5599 | VERIFY(cleanup_fd >= 0); |
b128c09f | 5600 | |
fcff0f35 | 5601 | err = zfs_receive_impl(hdl, tosnap, originsnap, flags, infd, NULL, NULL, |
a3eeab2d | 5602 | stream_avl, &top_zfs, cleanup_fd, &action_handle, NULL, props); |
572e2857 BB |
5603 | |
5604 | VERIFY(0 == close(cleanup_fd)); | |
b128c09f | 5605 | |
bb61cc31 | 5606 | if (err == 0 && !flags->nomount && flags->domount && top_zfs) { |
689f093e GN |
5607 | zfs_handle_t *zhp = NULL; |
5608 | prop_changelist_t *clp = NULL; | |
b128c09f | 5609 | |
bb61cc31 TC |
5610 | zhp = zfs_open(hdl, top_zfs, |
5611 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
5612 | if (zhp == NULL) { | |
5613 | err = -1; | |
5614 | goto out; | |
5615 | } else { | |
5616 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
5617 | zfs_close(zhp); | |
5618 | goto out; | |
5619 | } | |
5620 | ||
b128c09f | 5621 | clp = changelist_gather(zhp, ZFS_PROP_MOUNTPOINT, |
a57d3d45 MZ |
5622 | CL_GATHER_MOUNT_ALWAYS, |
5623 | flags->forceunmount ? MS_FORCE : 0); | |
b128c09f | 5624 | zfs_close(zhp); |
bb61cc31 TC |
5625 | if (clp == NULL) { |
5626 | err = -1; | |
5627 | goto out; | |
b128c09f | 5628 | } |
bb61cc31 TC |
5629 | |
5630 | /* mount and share received datasets */ | |
5631 | err = changelist_postfix(clp); | |
5632 | changelist_free(clp); | |
5633 | if (err != 0) | |
5634 | err = -1; | |
b128c09f | 5635 | } |
b128c09f | 5636 | } |
bb61cc31 TC |
5637 | |
5638 | out: | |
b128c09f BB |
5639 | if (top_zfs) |
5640 | free(top_zfs); | |
5641 | ||
5642 | return (err); | |
5643 | } |