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