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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. |
196bee4c | 24 | * Copyright (c) 2011, 2020 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> |
428870ff BB |
51 | #include <pthread.h> |
52 | #include <umem.h> | |
37abac6d | 53 | #include <time.h> |
34dc7c2f BB |
54 | |
55 | #include <libzfs.h> | |
9b67f605 | 56 | #include <libzfs_core.h> |
e89f1295 | 57 | #include <libzutil.h> |
34dc7c2f BB |
58 | |
59 | #include "zfs_namecheck.h" | |
60 | #include "zfs_prop.h" | |
428870ff | 61 | #include "zfs_fletcher.h" |
34dc7c2f | 62 | #include "libzfs_impl.h" |
c618f87c | 63 | #include <cityhash.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 | |
fcff0f35 | 71 | static int zfs_receive_impl(libzfs_handle_t *, const char *, const char *, |
196bee4c MA |
72 | recvflags_t *, int, const char *, nvlist_t *, avl_tree_t *, char **, |
73 | const char *, nvlist_t *); | |
30af21b0 PD |
74 | static int guid_to_name_redact_snaps(libzfs_handle_t *hdl, const char *parent, |
75 | uint64_t guid, boolean_t bookmark_ok, uint64_t *redact_snap_guids, | |
76 | uint64_t num_redact_snaps, char *name); | |
47dfff3b MA |
77 | static int guid_to_name(libzfs_handle_t *, const char *, |
78 | uint64_t, boolean_t, char *); | |
428870ff | 79 | |
37abac6d BP |
80 | typedef struct progress_arg { |
81 | zfs_handle_t *pa_zhp; | |
82 | int pa_fd; | |
83 | boolean_t pa_parsable; | |
30af21b0 PD |
84 | boolean_t pa_estimate; |
85 | int pa_verbosity; | |
37abac6d BP |
86 | } progress_arg_t; |
87 | ||
428870ff | 88 | static int |
01a0039a | 89 | dump_record(dmu_replay_record_t *drr, void *payload, size_t payload_len, |
37f8a883 | 90 | zio_cksum_t *zc, int outfd) |
428870ff | 91 | { |
37f8a883 MA |
92 | ASSERT3U(offsetof(dmu_replay_record_t, drr_u.drr_checksum.drr_checksum), |
93 | ==, sizeof (dmu_replay_record_t) - sizeof (zio_cksum_t)); | |
94 | fletcher_4_incremental_native(drr, | |
95 | offsetof(dmu_replay_record_t, drr_u.drr_checksum.drr_checksum), zc); | |
96 | if (drr->drr_type != DRR_BEGIN) { | |
97 | ASSERT(ZIO_CHECKSUM_IS_ZERO(&drr->drr_u. | |
98 | drr_checksum.drr_checksum)); | |
99 | drr->drr_u.drr_checksum.drr_checksum = *zc; | |
100 | } | |
101 | fletcher_4_incremental_native(&drr->drr_u.drr_checksum.drr_checksum, | |
102 | sizeof (zio_cksum_t), zc); | |
103 | if (write(outfd, drr, sizeof (*drr)) == -1) | |
104 | return (errno); | |
105 | if (payload_len != 0) { | |
106 | fletcher_4_incremental_native(payload, payload_len, zc); | |
107 | if (write(outfd, payload, payload_len) == -1) | |
108 | return (errno); | |
109 | } | |
110 | return (0); | |
428870ff BB |
111 | } |
112 | ||
34dc7c2f BB |
113 | /* |
114 | * Routines for dealing with the AVL tree of fs-nvlists | |
115 | */ | |
116 | typedef struct fsavl_node { | |
117 | avl_node_t fn_node; | |
118 | nvlist_t *fn_nvfs; | |
119 | char *fn_snapname; | |
120 | uint64_t fn_guid; | |
121 | } fsavl_node_t; | |
122 | ||
123 | static int | |
124 | fsavl_compare(const void *arg1, const void *arg2) | |
125 | { | |
ee36c709 GN |
126 | const fsavl_node_t *fn1 = (const fsavl_node_t *)arg1; |
127 | const fsavl_node_t *fn2 = (const fsavl_node_t *)arg2; | |
128 | ||
ca577779 | 129 | return (TREE_CMP(fn1->fn_guid, fn2->fn_guid)); |
34dc7c2f BB |
130 | } |
131 | ||
132 | /* | |
133 | * Given the GUID of a snapshot, find its containing filesystem and | |
134 | * (optionally) name. | |
135 | */ | |
136 | static nvlist_t * | |
137 | fsavl_find(avl_tree_t *avl, uint64_t snapguid, char **snapname) | |
138 | { | |
139 | fsavl_node_t fn_find; | |
140 | fsavl_node_t *fn; | |
141 | ||
142 | fn_find.fn_guid = snapguid; | |
143 | ||
144 | fn = avl_find(avl, &fn_find, NULL); | |
145 | if (fn) { | |
146 | if (snapname) | |
147 | *snapname = fn->fn_snapname; | |
148 | return (fn->fn_nvfs); | |
149 | } | |
150 | return (NULL); | |
151 | } | |
152 | ||
153 | static void | |
154 | fsavl_destroy(avl_tree_t *avl) | |
155 | { | |
156 | fsavl_node_t *fn; | |
157 | void *cookie; | |
158 | ||
159 | if (avl == NULL) | |
160 | return; | |
161 | ||
162 | cookie = NULL; | |
163 | while ((fn = avl_destroy_nodes(avl, &cookie)) != NULL) | |
164 | free(fn); | |
165 | avl_destroy(avl); | |
166 | free(avl); | |
167 | } | |
168 | ||
45d1cae3 BB |
169 | /* |
170 | * Given an nvlist, produce an avl tree of snapshots, ordered by guid | |
171 | */ | |
34dc7c2f BB |
172 | static avl_tree_t * |
173 | fsavl_create(nvlist_t *fss) | |
174 | { | |
175 | avl_tree_t *fsavl; | |
176 | nvpair_t *fselem = NULL; | |
177 | ||
178 | if ((fsavl = malloc(sizeof (avl_tree_t))) == NULL) | |
179 | return (NULL); | |
180 | ||
181 | avl_create(fsavl, fsavl_compare, sizeof (fsavl_node_t), | |
182 | offsetof(fsavl_node_t, fn_node)); | |
183 | ||
184 | while ((fselem = nvlist_next_nvpair(fss, fselem)) != NULL) { | |
185 | nvlist_t *nvfs, *snaps; | |
186 | nvpair_t *snapelem = NULL; | |
187 | ||
60a2434b RM |
188 | nvfs = fnvpair_value_nvlist(fselem); |
189 | snaps = fnvlist_lookup_nvlist(nvfs, "snaps"); | |
34dc7c2f BB |
190 | |
191 | while ((snapelem = | |
192 | nvlist_next_nvpair(snaps, snapelem)) != NULL) { | |
193 | fsavl_node_t *fn; | |
34dc7c2f | 194 | |
34dc7c2f BB |
195 | if ((fn = malloc(sizeof (fsavl_node_t))) == NULL) { |
196 | fsavl_destroy(fsavl); | |
197 | return (NULL); | |
198 | } | |
199 | fn->fn_nvfs = nvfs; | |
200 | fn->fn_snapname = nvpair_name(snapelem); | |
1488e822 | 201 | fn->fn_guid = fnvpair_value_uint64(snapelem); |
34dc7c2f BB |
202 | |
203 | /* | |
204 | * Note: if there are multiple snaps with the | |
205 | * same GUID, we ignore all but one. | |
206 | */ | |
af2b1fbd RM |
207 | avl_index_t where = 0; |
208 | if (avl_find(fsavl, fn, &where) == NULL) | |
209 | avl_insert(fsavl, fn, where); | |
34dc7c2f BB |
210 | else |
211 | free(fn); | |
212 | } | |
213 | } | |
214 | ||
215 | return (fsavl); | |
216 | } | |
217 | ||
218 | /* | |
219 | * Routines for dealing with the giant nvlist of fs-nvlists, etc. | |
220 | */ | |
221 | typedef struct send_data { | |
66356240 K |
222 | /* |
223 | * assigned inside every recursive call, | |
224 | * restored from *_save on return: | |
225 | * | |
226 | * guid of fromsnap snapshot in parent dataset | |
227 | * txg of fromsnap snapshot in current dataset | |
228 | * txg of tosnap snapshot in current dataset | |
229 | */ | |
230 | ||
34dc7c2f | 231 | uint64_t parent_fromsnap_guid; |
66356240 K |
232 | uint64_t fromsnap_txg; |
233 | uint64_t tosnap_txg; | |
234 | ||
235 | /* the nvlists get accumulated during depth-first traversal */ | |
34dc7c2f BB |
236 | nvlist_t *parent_snaps; |
237 | nvlist_t *fss; | |
b128c09f | 238 | nvlist_t *snapprops; |
9c5e88b1 | 239 | nvlist_t *snapholds; /* user holds */ |
66356240 K |
240 | |
241 | /* send-receive configuration, does not change during traversal */ | |
242 | const char *fsname; | |
34dc7c2f BB |
243 | const char *fromsnap; |
244 | const char *tosnap; | |
428870ff | 245 | boolean_t recursive; |
4c0883fb | 246 | boolean_t raw; |
f94b3cbf | 247 | boolean_t doall; |
4c0883fb | 248 | boolean_t replicate; |
099fa7e4 | 249 | boolean_t skipmissing; |
66356240 | 250 | boolean_t verbose; |
4c0883fb | 251 | boolean_t backup; |
05748550 AG |
252 | boolean_t seenfrom; |
253 | boolean_t seento; | |
9c5e88b1 PZ |
254 | boolean_t holds; /* were holds requested with send -h */ |
255 | boolean_t props; | |
34dc7c2f BB |
256 | |
257 | /* | |
258 | * The header nvlist is of the following format: | |
259 | * { | |
260 | * "tosnap" -> string | |
261 | * "fromsnap" -> string (if incremental) | |
262 | * "fss" -> { | |
263 | * id -> { | |
264 | * | |
265 | * "name" -> string (full name; for debugging) | |
266 | * "parentfromsnap" -> number (guid of fromsnap in parent) | |
267 | * | |
268 | * "props" -> { name -> value (only if set here) } | |
269 | * "snaps" -> { name (lastname) -> number (guid) } | |
b128c09f | 270 | * "snapprops" -> { name (lastname) -> { name -> value } } |
9c5e88b1 | 271 | * "snapholds" -> { name (lastname) -> { holdname -> crtime } } |
34dc7c2f BB |
272 | * |
273 | * "origin" -> number (guid) (if clone) | |
b5256303 | 274 | * "is_encroot" -> boolean |
34dc7c2f BB |
275 | * "sent" -> boolean (not on-disk) |
276 | * } | |
277 | * } | |
278 | * } | |
279 | * | |
280 | */ | |
281 | } send_data_t; | |
282 | ||
faa97c16 | 283 | static void |
284 | send_iterate_prop(zfs_handle_t *zhp, boolean_t received_only, nvlist_t *nv); | |
b128c09f | 285 | |
dd59c422 RM |
286 | /* |
287 | * Collect guid, valid props, optionally holds, etc. of a snapshot. | |
288 | * This interface is intended for use as a zfs_iter_snapshots_sorted visitor. | |
289 | */ | |
34dc7c2f BB |
290 | static int |
291 | send_iterate_snap(zfs_handle_t *zhp, void *arg) | |
292 | { | |
293 | send_data_t *sd = arg; | |
294 | uint64_t guid = zhp->zfs_dmustats.dds_guid; | |
66356240 | 295 | uint64_t txg = zhp->zfs_dmustats.dds_creation_txg; |
e890dd85 | 296 | boolean_t isfromsnap, istosnap, istosnapwithnofrom; |
5cf3c24f | 297 | char *snapname; |
dd59c422 RM |
298 | const char *from = sd->fromsnap; |
299 | const char *to = sd->tosnap; | |
34dc7c2f | 300 | |
5cf3c24f AZ |
301 | snapname = strrchr(zhp->zfs_name, '@'); |
302 | assert(snapname != NULL); | |
303 | ++snapname; | |
dd59c422 RM |
304 | |
305 | isfromsnap = (from != NULL && strcmp(from, snapname) == 0); | |
306 | istosnap = (to != NULL && strcmp(to, snapname) == 0); | |
307 | istosnapwithnofrom = (istosnap && from == NULL); | |
34dc7c2f | 308 | |
66356240 K |
309 | if (sd->tosnap_txg != 0 && txg > sd->tosnap_txg) { |
310 | if (sd->verbose) { | |
311 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
312 | "skipping snapshot %s because it was created " | |
313 | "after the destination snapshot (%s)\n"), | |
dd59c422 | 314 | zhp->zfs_name, to); |
66356240 K |
315 | } |
316 | zfs_close(zhp); | |
317 | return (0); | |
318 | } | |
319 | ||
60a2434b | 320 | fnvlist_add_uint64(sd->parent_snaps, snapname, guid); |
dd59c422 | 321 | |
34dc7c2f BB |
322 | /* |
323 | * NB: if there is no fromsnap here (it's a newly created fs in | |
324 | * an incremental replication), we will substitute the tosnap. | |
325 | */ | |
dd59c422 | 326 | if (isfromsnap || (sd->parent_fromsnap_guid == 0 && istosnap)) |
34dc7c2f | 327 | sd->parent_fromsnap_guid = guid; |
34dc7c2f | 328 | |
05748550 | 329 | if (!sd->recursive) { |
b9c07ec7 CM |
330 | /* |
331 | * To allow a doall stream to work properly | |
332 | * with a NULL fromsnap | |
333 | */ | |
dd59c422 | 334 | if (sd->doall && from == NULL && !sd->seenfrom) |
b9c07ec7 | 335 | sd->seenfrom = B_TRUE; |
b9c07ec7 | 336 | |
05748550 AG |
337 | if (!sd->seenfrom && isfromsnap) { |
338 | sd->seenfrom = B_TRUE; | |
339 | zfs_close(zhp); | |
340 | return (0); | |
341 | } | |
342 | ||
e890dd85 | 343 | if ((sd->seento || !sd->seenfrom) && !istosnapwithnofrom) { |
05748550 AG |
344 | zfs_close(zhp); |
345 | return (0); | |
346 | } | |
347 | ||
348 | if (istosnap) | |
349 | sd->seento = B_TRUE; | |
350 | } | |
351 | ||
dd59c422 | 352 | nvlist_t *nv = fnvlist_alloc(); |
faa97c16 | 353 | send_iterate_prop(zhp, sd->backup, nv); |
60a2434b RM |
354 | fnvlist_add_nvlist(sd->snapprops, snapname, nv); |
355 | fnvlist_free(nv); | |
dd59c422 | 356 | |
9c5e88b1 | 357 | if (sd->holds) { |
f2b36b2d RM |
358 | nvlist_t *holds; |
359 | if (lzc_get_holds(zhp->zfs_name, &holds) == 0) { | |
60a2434b | 360 | fnvlist_add_nvlist(sd->snapholds, snapname, holds); |
f2b36b2d | 361 | fnvlist_free(holds); |
9c5e88b1 | 362 | } |
9c5e88b1 | 363 | } |
b128c09f | 364 | |
34dc7c2f BB |
365 | zfs_close(zhp); |
366 | return (0); | |
367 | } | |
368 | ||
2b6b7111 RM |
369 | /* |
370 | * Collect all valid props from the handle snap into an nvlist. | |
371 | */ | |
34dc7c2f | 372 | static void |
faa97c16 | 373 | send_iterate_prop(zfs_handle_t *zhp, boolean_t received_only, nvlist_t *nv) |
34dc7c2f | 374 | { |
2b6b7111 | 375 | nvlist_t *props; |
34dc7c2f | 376 | |
faa97c16 | 377 | if (received_only) |
378 | props = zfs_get_recvd_props(zhp); | |
379 | else | |
380 | props = zhp->zfs_props; | |
381 | ||
2b6b7111 | 382 | nvpair_t *elem = NULL; |
faa97c16 | 383 | while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { |
34dc7c2f BB |
384 | char *propname = nvpair_name(elem); |
385 | zfs_prop_t prop = zfs_name_to_prop(propname); | |
34dc7c2f | 386 | |
428870ff BB |
387 | if (!zfs_prop_user(propname)) { |
388 | /* | |
389 | * Realistically, this should never happen. However, | |
390 | * we want the ability to add DSL properties without | |
391 | * needing to make incompatible version changes. We | |
392 | * need to ignore unknown properties to allow older | |
393 | * software to still send datasets containing these | |
394 | * properties, with the unknown properties elided. | |
395 | */ | |
396 | if (prop == ZPROP_INVAL) | |
397 | continue; | |
9babb374 | 398 | |
428870ff BB |
399 | if (zfs_prop_readonly(prop)) |
400 | continue; | |
401 | } | |
34dc7c2f | 402 | |
2b6b7111 RM |
403 | nvlist_t *propnv = fnvpair_value_nvlist(elem); |
404 | ||
405 | boolean_t isspacelimit = (prop == ZFS_PROP_QUOTA || | |
406 | prop == ZFS_PROP_RESERVATION || | |
45d1cae3 | 407 | prop == ZFS_PROP_REFQUOTA || |
2b6b7111 RM |
408 | prop == ZFS_PROP_REFRESERVATION); |
409 | if (isspacelimit && zhp->zfs_type == ZFS_TYPE_SNAPSHOT) | |
410 | continue; | |
411 | ||
412 | char *source; | |
413 | if (nvlist_lookup_string(propnv, ZPROP_SOURCE, &source) == 0) { | |
414 | if (strcmp(source, zhp->zfs_name) != 0 && | |
415 | strcmp(source, ZPROP_SOURCE_VAL_RECVD) != 0) | |
b128c09f | 416 | continue; |
2b6b7111 | 417 | } else { |
428870ff BB |
418 | /* |
419 | * May have no source before SPA_VERSION_RECVD_PROPS, | |
420 | * but is still modifiable. | |
421 | */ | |
2b6b7111 | 422 | if (!isspacelimit) |
34dc7c2f BB |
423 | continue; |
424 | } | |
425 | ||
426 | if (zfs_prop_user(propname) || | |
427 | zfs_prop_get_type(prop) == PROP_TYPE_STRING) { | |
428 | char *value; | |
60a2434b RM |
429 | value = fnvlist_lookup_string(propnv, ZPROP_VALUE); |
430 | fnvlist_add_string(nv, propname, value); | |
34dc7c2f BB |
431 | } else { |
432 | uint64_t value; | |
60a2434b RM |
433 | value = fnvlist_lookup_uint64(propnv, ZPROP_VALUE); |
434 | fnvlist_add_uint64(nv, propname, value); | |
34dc7c2f BB |
435 | } |
436 | } | |
437 | } | |
438 | ||
66356240 K |
439 | /* |
440 | * returns snapshot creation txg | |
441 | * and returns 0 if the snapshot does not exist | |
442 | */ | |
443 | static uint64_t | |
444 | get_snap_txg(libzfs_handle_t *hdl, const char *fs, const char *snap) | |
445 | { | |
446 | char name[ZFS_MAX_DATASET_NAME_LEN]; | |
447 | uint64_t txg = 0; | |
448 | ||
449 | if (fs == NULL || fs[0] == '\0' || snap == NULL || snap[0] == '\0') | |
450 | return (txg); | |
451 | ||
452 | (void) snprintf(name, sizeof (name), "%s@%s", fs, snap); | |
453 | if (zfs_dataset_exists(hdl, name, ZFS_TYPE_SNAPSHOT)) { | |
454 | zfs_handle_t *zhp = zfs_open(hdl, name, ZFS_TYPE_SNAPSHOT); | |
455 | if (zhp != NULL) { | |
456 | txg = zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG); | |
457 | zfs_close(zhp); | |
458 | } | |
459 | } | |
460 | ||
461 | return (txg); | |
462 | } | |
463 | ||
45d1cae3 | 464 | /* |
0c1c746a | 465 | * Recursively generate nvlists describing datasets. See comment |
45d1cae3 BB |
466 | * for the data structure send_data_t above for description of contents |
467 | * of the nvlist. | |
468 | */ | |
34dc7c2f BB |
469 | static int |
470 | send_iterate_fs(zfs_handle_t *zhp, void *arg) | |
471 | { | |
472 | send_data_t *sd = arg; | |
b5256303 | 473 | nvlist_t *nvfs = NULL, *nv = NULL; |
428870ff | 474 | int rv = 0; |
4c0883fb | 475 | uint64_t min_txg = 0, max_txg = 0; |
66356240 | 476 | uint64_t txg = zhp->zfs_dmustats.dds_creation_txg; |
34dc7c2f | 477 | uint64_t guid = zhp->zfs_dmustats.dds_guid; |
66356240 | 478 | uint64_t fromsnap_txg, tosnap_txg; |
34dc7c2f BB |
479 | char guidstring[64]; |
480 | ||
0c1c746a RM |
481 | /* These fields are restored on return from a recursive call. */ |
482 | uint64_t parent_fromsnap_guid_save = sd->parent_fromsnap_guid; | |
483 | uint64_t fromsnap_txg_save = sd->fromsnap_txg; | |
484 | uint64_t tosnap_txg_save = sd->tosnap_txg; | |
485 | ||
66356240 K |
486 | fromsnap_txg = get_snap_txg(zhp->zfs_hdl, zhp->zfs_name, sd->fromsnap); |
487 | if (fromsnap_txg != 0) | |
488 | sd->fromsnap_txg = fromsnap_txg; | |
489 | ||
490 | tosnap_txg = get_snap_txg(zhp->zfs_hdl, zhp->zfs_name, sd->tosnap); | |
491 | if (tosnap_txg != 0) | |
492 | sd->tosnap_txg = tosnap_txg; | |
493 | ||
494 | /* | |
0c1c746a | 495 | * On the send side, if the current dataset does not have tosnap, |
66356240 K |
496 | * perform two additional checks: |
497 | * | |
0c1c746a RM |
498 | * - Skip sending the current dataset if it was created later than |
499 | * the parent tosnap. | |
500 | * - Return error if the current dataset was created earlier than | |
099fa7e4 | 501 | * the parent tosnap, unless --skip-missing specified. Then |
0c1c746a | 502 | * just print a warning. |
66356240 K |
503 | */ |
504 | if (sd->tosnap != NULL && tosnap_txg == 0) { | |
505 | if (sd->tosnap_txg != 0 && txg > sd->tosnap_txg) { | |
506 | if (sd->verbose) { | |
507 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
508 | "skipping dataset %s: snapshot %s does " | |
509 | "not exist\n"), zhp->zfs_name, sd->tosnap); | |
510 | } | |
099fa7e4 PCG |
511 | } else if (sd->skipmissing) { |
512 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
513 | "WARNING: skipping dataset %s and its children:" | |
514 | " snapshot %s does not exist\n"), | |
515 | zhp->zfs_name, sd->tosnap); | |
66356240 K |
516 | } else { |
517 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
518 | "cannot send %s@%s%s: snapshot %s@%s does not " | |
519 | "exist\n"), sd->fsname, sd->tosnap, sd->recursive ? | |
520 | dgettext(TEXT_DOMAIN, " recursively") : "", | |
521 | zhp->zfs_name, sd->tosnap); | |
30af21b0 | 522 | rv = EZFS_NOENT; |
66356240 K |
523 | } |
524 | goto out; | |
525 | } | |
526 | ||
4c0883fb AP |
527 | nvfs = fnvlist_alloc(); |
528 | fnvlist_add_string(nvfs, "name", zhp->zfs_name); | |
0c1c746a | 529 | fnvlist_add_uint64(nvfs, "parentfromsnap", sd->parent_fromsnap_guid); |
34dc7c2f | 530 | |
0c1c746a | 531 | if (zhp->zfs_dmustats.dds_origin[0] != '\0') { |
34dc7c2f BB |
532 | zfs_handle_t *origin = zfs_open(zhp->zfs_hdl, |
533 | zhp->zfs_dmustats.dds_origin, ZFS_TYPE_SNAPSHOT); | |
66356240 K |
534 | if (origin == NULL) { |
535 | rv = -1; | |
536 | goto out; | |
537 | } | |
4c0883fb AP |
538 | fnvlist_add_uint64(nvfs, "origin", |
539 | origin->zfs_dmustats.dds_guid); | |
ad7e908a | 540 | zfs_close(origin); |
34dc7c2f BB |
541 | } |
542 | ||
0c1c746a | 543 | /* Iterate over props. */ |
9c5e88b1 | 544 | if (sd->props || sd->backup || sd->recursive) { |
4c0883fb | 545 | nv = fnvlist_alloc(); |
9c5e88b1 | 546 | send_iterate_prop(zhp, sd->backup, nv); |
0c1c746a | 547 | fnvlist_add_nvlist(nvfs, "props", nv); |
9c5e88b1 | 548 | } |
b5256303 TC |
549 | if (zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != ZIO_CRYPT_OFF) { |
550 | boolean_t encroot; | |
551 | ||
0c1c746a | 552 | /* Determine if this dataset is an encryption root. */ |
b5256303 TC |
553 | if (zfs_crypto_get_encryption_root(zhp, &encroot, NULL) != 0) { |
554 | rv = -1; | |
555 | goto out; | |
556 | } | |
557 | ||
558 | if (encroot) | |
4c0883fb | 559 | fnvlist_add_boolean(nvfs, "is_encroot"); |
b5256303 TC |
560 | |
561 | /* | |
562 | * Encrypted datasets can only be sent with properties if | |
563 | * the raw flag is specified because the receive side doesn't | |
564 | * currently have a mechanism for recursively asking the user | |
565 | * for new encryption parameters. | |
566 | */ | |
567 | if (!sd->raw) { | |
568 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
569 | "cannot send %s@%s: encrypted dataset %s may not " | |
570 | "be sent with properties without the raw flag\n"), | |
571 | sd->fsname, sd->tosnap, zhp->zfs_name); | |
572 | rv = -1; | |
573 | goto out; | |
574 | } | |
575 | ||
576 | } | |
577 | ||
f94b3cbf | 578 | /* |
0c1c746a RM |
579 | * Iterate over snaps, and set sd->parent_fromsnap_guid. |
580 | * | |
f94b3cbf TC |
581 | * If this is a "doall" send, a replicate send or we're just trying |
582 | * to gather a list of previous snapshots, iterate through all the | |
583 | * snaps in the txg range. Otherwise just look at the one we're | |
584 | * interested in. | |
585 | */ | |
0c1c746a RM |
586 | sd->parent_fromsnap_guid = 0; |
587 | sd->parent_snaps = fnvlist_alloc(); | |
588 | sd->snapprops = fnvlist_alloc(); | |
589 | if (sd->holds) | |
590 | sd->snapholds = fnvlist_alloc(); | |
f94b3cbf TC |
591 | if (sd->doall || sd->replicate || sd->tosnap == NULL) { |
592 | if (!sd->replicate && fromsnap_txg != 0) | |
593 | min_txg = fromsnap_txg; | |
594 | if (!sd->replicate && tosnap_txg != 0) | |
595 | max_txg = tosnap_txg; | |
399b9819 | 596 | (void) zfs_iter_snapshots_sorted(zhp, send_iterate_snap, sd, |
f94b3cbf TC |
597 | min_txg, max_txg); |
598 | } else { | |
0c1c746a | 599 | char snapname[MAXPATHLEN]; |
f94b3cbf TC |
600 | zfs_handle_t *snap; |
601 | ||
f0ce0436 | 602 | (void) snprintf(snapname, sizeof (snapname), "%s@%s", |
f94b3cbf TC |
603 | zhp->zfs_name, sd->tosnap); |
604 | if (sd->fromsnap != NULL) | |
605 | sd->seenfrom = B_TRUE; | |
0c1c746a | 606 | snap = zfs_open(zhp->zfs_hdl, snapname, ZFS_TYPE_SNAPSHOT); |
f94b3cbf TC |
607 | if (snap != NULL) |
608 | (void) send_iterate_snap(snap, sd); | |
609 | } | |
610 | ||
4c0883fb | 611 | fnvlist_add_nvlist(nvfs, "snaps", sd->parent_snaps); |
4c0883fb | 612 | fnvlist_free(sd->parent_snaps); |
0c1c746a | 613 | fnvlist_add_nvlist(nvfs, "snapprops", sd->snapprops); |
4c0883fb | 614 | fnvlist_free(sd->snapprops); |
0c1c746a RM |
615 | if (sd->holds) { |
616 | fnvlist_add_nvlist(nvfs, "snapholds", sd->snapholds); | |
617 | fnvlist_free(sd->snapholds); | |
618 | } | |
34dc7c2f | 619 | |
7a6c12fd AJ |
620 | /* Do not allow the size of the properties list to exceed the limit */ |
621 | if ((fnvlist_size(nvfs) + fnvlist_size(sd->fss)) > | |
622 | zhp->zfs_hdl->libzfs_max_nvlist) { | |
623 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
624 | "warning: cannot send %s@%s: the size of the list of " | |
625 | "snapshots and properties is too large to be received " | |
626 | "successfully.\n" | |
627 | "Select a smaller number of snapshots to send.\n"), | |
628 | zhp->zfs_name, sd->tosnap); | |
629 | rv = EZFS_NOSPC; | |
630 | goto out; | |
631 | } | |
0c1c746a | 632 | /* Add this fs to nvlist. */ |
34dc7c2f BB |
633 | (void) snprintf(guidstring, sizeof (guidstring), |
634 | "0x%llx", (longlong_t)guid); | |
4c0883fb | 635 | fnvlist_add_nvlist(sd->fss, guidstring, nvfs); |
34dc7c2f | 636 | |
0c1c746a | 637 | /* Iterate over children. */ |
428870ff | 638 | if (sd->recursive) |
399b9819 | 639 | rv = zfs_iter_filesystems(zhp, send_iterate_fs, sd); |
34dc7c2f | 640 | |
66356240 | 641 | out: |
0c1c746a | 642 | /* Restore saved fields. */ |
34dc7c2f | 643 | sd->parent_fromsnap_guid = parent_fromsnap_guid_save; |
66356240 K |
644 | sd->fromsnap_txg = fromsnap_txg_save; |
645 | sd->tosnap_txg = tosnap_txg_save; | |
0c1c746a | 646 | |
4c0883fb AP |
647 | fnvlist_free(nv); |
648 | fnvlist_free(nvfs); | |
34dc7c2f BB |
649 | |
650 | zfs_close(zhp); | |
651 | return (rv); | |
652 | } | |
653 | ||
654 | static int | |
655 | gather_nvlist(libzfs_handle_t *hdl, const char *fsname, const char *fromsnap, | |
f94b3cbf | 656 | const char *tosnap, boolean_t recursive, boolean_t raw, boolean_t doall, |
099fa7e4 PCG |
657 | boolean_t replicate, boolean_t skipmissing, boolean_t verbose, |
658 | boolean_t backup, boolean_t holds, boolean_t props, nvlist_t **nvlp, | |
659 | avl_tree_t **avlp) | |
34dc7c2f BB |
660 | { |
661 | zfs_handle_t *zhp; | |
662 | send_data_t sd = { 0 }; | |
663 | int error; | |
664 | ||
665 | zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
666 | if (zhp == NULL) | |
667 | return (EZFS_BADTYPE); | |
668 | ||
60a2434b | 669 | sd.fss = fnvlist_alloc(); |
66356240 | 670 | sd.fsname = fsname; |
34dc7c2f BB |
671 | sd.fromsnap = fromsnap; |
672 | sd.tosnap = tosnap; | |
428870ff | 673 | sd.recursive = recursive; |
b5256303 | 674 | sd.raw = raw; |
f94b3cbf | 675 | sd.doall = doall; |
4c0883fb | 676 | sd.replicate = replicate; |
099fa7e4 | 677 | sd.skipmissing = skipmissing; |
66356240 | 678 | sd.verbose = verbose; |
faa97c16 | 679 | sd.backup = backup; |
9c5e88b1 PZ |
680 | sd.holds = holds; |
681 | sd.props = props; | |
34dc7c2f BB |
682 | |
683 | if ((error = send_iterate_fs(zhp, &sd)) != 0) { | |
60a2434b | 684 | fnvlist_free(sd.fss); |
34dc7c2f BB |
685 | if (avlp != NULL) |
686 | *avlp = NULL; | |
687 | *nvlp = NULL; | |
688 | return (error); | |
689 | } | |
690 | ||
691 | if (avlp != NULL && (*avlp = fsavl_create(sd.fss)) == NULL) { | |
60a2434b | 692 | fnvlist_free(sd.fss); |
34dc7c2f BB |
693 | *nvlp = NULL; |
694 | return (EZFS_NOMEM); | |
695 | } | |
696 | ||
697 | *nvlp = sd.fss; | |
698 | return (0); | |
699 | } | |
700 | ||
34dc7c2f BB |
701 | /* |
702 | * Routines specific to "zfs send" | |
703 | */ | |
704 | typedef struct send_dump_data { | |
705 | /* these are all just the short snapname (the part after the @) */ | |
706 | const char *fromsnap; | |
707 | const char *tosnap; | |
eca7b760 | 708 | char prevsnap[ZFS_MAX_DATASET_NAME_LEN]; |
572e2857 | 709 | uint64_t prevsnap_obj; |
34dc7c2f | 710 | boolean_t seenfrom, seento, replicate, doall, fromorigin; |
30af21b0 | 711 | boolean_t dryrun, parsable, progress, embed_data, std_out; |
9c5e88b1 | 712 | boolean_t large_block, compress, raw, holds; |
34dc7c2f BB |
713 | int outfd; |
714 | boolean_t err; | |
715 | nvlist_t *fss; | |
95fd54a1 | 716 | nvlist_t *snapholds; |
34dc7c2f | 717 | avl_tree_t *fsavl; |
428870ff BB |
718 | snapfilter_cb_t *filter_cb; |
719 | void *filter_cb_arg; | |
720 | nvlist_t *debugnv; | |
eca7b760 | 721 | char holdtag[ZFS_MAX_DATASET_NAME_LEN]; |
572e2857 | 722 | int cleanup_fd; |
30af21b0 | 723 | int verbosity; |
330d06f9 | 724 | uint64_t size; |
34dc7c2f BB |
725 | } send_dump_data_t; |
726 | ||
330d06f9 | 727 | static int |
cf7684bc | 728 | zfs_send_space(zfs_handle_t *zhp, const char *snapname, const char *from, |
729 | enum lzc_send_flags flags, uint64_t *spacep) | |
330d06f9 | 730 | { |
cf7684bc | 731 | assert(snapname != NULL); |
330d06f9 | 732 | |
a8747c04 RM |
733 | int error = lzc_send_space(snapname, from, flags, spacep); |
734 | if (error == 0) | |
735 | return (0); | |
736 | ||
737 | char errbuf[1024]; | |
738 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
739 | "warning: cannot estimate space for '%s'"), snapname); | |
330d06f9 | 740 | |
a8747c04 RM |
741 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
742 | switch (error) { | |
743 | case EXDEV: | |
744 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
745 | "not an earlier snapshot from the same fs")); | |
746 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
747 | ||
748 | case ENOENT: | |
749 | if (zfs_dataset_exists(hdl, snapname, | |
750 | ZFS_TYPE_SNAPSHOT)) { | |
330d06f9 | 751 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
a8747c04 RM |
752 | "incremental source (%s) does not exist"), |
753 | snapname); | |
330d06f9 | 754 | } |
a8747c04 RM |
755 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); |
756 | ||
757 | case EDQUOT: | |
758 | case EFBIG: | |
759 | case EIO: | |
760 | case ENOLINK: | |
761 | case ENOSPC: | |
762 | case ENOSTR: | |
763 | case ENXIO: | |
764 | case EPIPE: | |
765 | case ERANGE: | |
766 | case EFAULT: | |
767 | case EROFS: | |
768 | case EINVAL: | |
769 | zfs_error_aux(hdl, "%s", strerror(error)); | |
770 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); | |
771 | ||
772 | default: | |
773 | return (zfs_standard_error(hdl, error, errbuf)); | |
330d06f9 | 774 | } |
330d06f9 MA |
775 | } |
776 | ||
34dc7c2f BB |
777 | /* |
778 | * Dumps a backup of the given snapshot (incremental from fromsnap if it's not | |
779 | * NULL) to the file descriptor specified by outfd. | |
780 | */ | |
781 | static int | |
572e2857 | 782 | dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, uint64_t fromsnap_obj, |
9b67f605 MA |
783 | boolean_t fromorigin, int outfd, enum lzc_send_flags flags, |
784 | nvlist_t *debugnv) | |
34dc7c2f | 785 | { |
13fe0198 | 786 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f | 787 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
428870ff | 788 | nvlist_t *thisdbg; |
34dc7c2f BB |
789 | |
790 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); | |
572e2857 | 791 | assert(fromsnap_obj == 0 || !fromorigin); |
34dc7c2f BB |
792 | |
793 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
34dc7c2f BB |
794 | zc.zc_cookie = outfd; |
795 | zc.zc_obj = fromorigin; | |
572e2857 BB |
796 | zc.zc_sendobj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID); |
797 | zc.zc_fromobj = fromsnap_obj; | |
9b67f605 | 798 | zc.zc_flags = flags; |
428870ff | 799 | |
25074b47 RM |
800 | if (debugnv != NULL) { |
801 | thisdbg = fnvlist_alloc(); | |
802 | if (fromsnap != NULL && fromsnap[0] != '\0') | |
803 | fnvlist_add_string(thisdbg, "fromsnap", fromsnap); | |
428870ff BB |
804 | } |
805 | ||
330d06f9 | 806 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SEND, &zc) != 0) { |
34dc7c2f | 807 | char errbuf[1024]; |
25074b47 RM |
808 | int error = errno; |
809 | ||
806739f9 DS |
810 | (void) snprintf(errbuf, sizeof (errbuf), "%s '%s'", |
811 | dgettext(TEXT_DOMAIN, "warning: cannot send"), | |
812 | zhp->zfs_name); | |
34dc7c2f | 813 | |
25074b47 RM |
814 | if (debugnv != NULL) { |
815 | fnvlist_add_uint64(thisdbg, "error", error); | |
60a2434b | 816 | fnvlist_add_nvlist(debugnv, zhp->zfs_name, thisdbg); |
25074b47 | 817 | fnvlist_free(thisdbg); |
428870ff | 818 | } |
428870ff | 819 | |
25074b47 | 820 | switch (error) { |
34dc7c2f BB |
821 | case EXDEV: |
822 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
823 | "not an earlier snapshot from the same fs")); | |
824 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
825 | ||
b5256303 TC |
826 | case EACCES: |
827 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
828 | "source key must be loaded")); | |
829 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
830 | ||
34dc7c2f BB |
831 | case ENOENT: |
832 | if (zfs_dataset_exists(hdl, zc.zc_name, | |
833 | ZFS_TYPE_SNAPSHOT)) { | |
834 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
835 | "incremental source (@%s) does not exist"), | |
836 | zc.zc_value); | |
837 | } | |
838 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
839 | ||
840 | case EDQUOT: | |
841 | case EFBIG: | |
842 | case EIO: | |
843 | case ENOLINK: | |
844 | case ENOSPC: | |
845 | case ENOSTR: | |
846 | case ENXIO: | |
847 | case EPIPE: | |
848 | case ERANGE: | |
849 | case EFAULT: | |
850 | case EROFS: | |
860051f1 | 851 | case EINVAL: |
f00f4690 | 852 | zfs_error_aux(hdl, "%s", strerror(errno)); |
34dc7c2f BB |
853 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); |
854 | ||
855 | default: | |
856 | return (zfs_standard_error(hdl, errno, errbuf)); | |
857 | } | |
858 | } | |
859 | ||
25074b47 | 860 | if (debugnv != NULL) { |
60a2434b | 861 | fnvlist_add_nvlist(debugnv, zhp->zfs_name, thisdbg); |
25074b47 RM |
862 | fnvlist_free(thisdbg); |
863 | } | |
428870ff | 864 | |
34dc7c2f BB |
865 | return (0); |
866 | } | |
867 | ||
95fd54a1 SH |
868 | static void |
869 | gather_holds(zfs_handle_t *zhp, send_dump_data_t *sdd) | |
572e2857 | 870 | { |
572e2857 BB |
871 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); |
872 | ||
873 | /* | |
95fd54a1 | 874 | * zfs_send() only sets snapholds for sends that need them, |
572e2857 BB |
875 | * e.g. replication and doall. |
876 | */ | |
95fd54a1 SH |
877 | if (sdd->snapholds == NULL) |
878 | return; | |
572e2857 | 879 | |
95fd54a1 | 880 | fnvlist_add_string(sdd->snapholds, zhp->zfs_name, sdd->holdtag); |
572e2857 BB |
881 | } |
882 | ||
30af21b0 PD |
883 | int |
884 | zfs_send_progress(zfs_handle_t *zhp, int fd, uint64_t *bytes_written, | |
885 | uint64_t *blocks_visited) | |
886 | { | |
659f4008 RM |
887 | zfs_cmd_t zc = {"\0"}; |
888 | ||
24f1aa02 RM |
889 | if (bytes_written != NULL) |
890 | *bytes_written = 0; | |
891 | if (blocks_visited != NULL) | |
892 | *blocks_visited = 0; | |
30af21b0 PD |
893 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
894 | zc.zc_cookie = fd; | |
895 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SEND_PROGRESS, &zc) != 0) | |
896 | return (errno); | |
897 | if (bytes_written != NULL) | |
898 | *bytes_written = zc.zc_cookie; | |
899 | if (blocks_visited != NULL) | |
900 | *blocks_visited = zc.zc_objset_type; | |
901 | return (0); | |
902 | } | |
903 | ||
37abac6d BP |
904 | static void * |
905 | send_progress_thread(void *arg) | |
906 | { | |
907 | progress_arg_t *pa = arg; | |
37abac6d | 908 | zfs_handle_t *zhp = pa->pa_zhp; |
30af21b0 PD |
909 | uint64_t bytes; |
910 | uint64_t blocks; | |
37abac6d | 911 | char buf[16]; |
37abac6d BP |
912 | time_t t; |
913 | struct tm *tm; | |
fbcc25c9 RM |
914 | int err; |
915 | ||
916 | if (!pa->pa_parsable) { | |
917 | (void) fprintf(stderr, | |
918 | "TIME %s %sSNAPSHOT %s\n", | |
919 | pa->pa_estimate ? "BYTES" : " SENT", | |
920 | pa->pa_verbosity >= 2 ? " BLOCKS " : "", | |
921 | zhp->zfs_name); | |
922 | } | |
37abac6d BP |
923 | |
924 | /* | |
925 | * Print the progress from ZFS_IOC_SEND_PROGRESS every second. | |
926 | */ | |
927 | for (;;) { | |
928 | (void) sleep(1); | |
30af21b0 PD |
929 | if ((err = zfs_send_progress(zhp, pa->pa_fd, &bytes, |
930 | &blocks)) != 0) { | |
931 | if (err == EINTR || err == ENOENT) | |
932 | return ((void *)0); | |
933 | return ((void *)(uintptr_t)err); | |
934 | } | |
37abac6d | 935 | |
37abac6d BP |
936 | (void) time(&t); |
937 | tm = localtime(&t); | |
37abac6d | 938 | |
30af21b0 PD |
939 | if (pa->pa_verbosity >= 2 && pa->pa_parsable) { |
940 | (void) fprintf(stderr, | |
941 | "%02d:%02d:%02d\t%llu\t%llu\t%s\n", | |
942 | tm->tm_hour, tm->tm_min, tm->tm_sec, | |
943 | (u_longlong_t)bytes, (u_longlong_t)blocks, | |
944 | zhp->zfs_name); | |
945 | } else if (pa->pa_verbosity >= 2) { | |
946 | zfs_nicenum(bytes, buf, sizeof (buf)); | |
947 | (void) fprintf(stderr, | |
948 | "%02d:%02d:%02d %5s %8llu %s\n", | |
949 | tm->tm_hour, tm->tm_min, tm->tm_sec, | |
950 | buf, (u_longlong_t)blocks, zhp->zfs_name); | |
951 | } else if (pa->pa_parsable) { | |
37abac6d BP |
952 | (void) fprintf(stderr, "%02d:%02d:%02d\t%llu\t%s\n", |
953 | tm->tm_hour, tm->tm_min, tm->tm_sec, | |
30af21b0 | 954 | (u_longlong_t)bytes, zhp->zfs_name); |
37abac6d | 955 | } else { |
e7fbeb60 | 956 | zfs_nicebytes(bytes, buf, sizeof (buf)); |
37abac6d BP |
957 | (void) fprintf(stderr, "%02d:%02d:%02d %5s %s\n", |
958 | tm->tm_hour, tm->tm_min, tm->tm_sec, | |
959 | buf, zhp->zfs_name); | |
960 | } | |
961 | } | |
962 | } | |
963 | ||
47dfff3b MA |
964 | static void |
965 | send_print_verbose(FILE *fout, const char *tosnap, const char *fromsnap, | |
966 | uint64_t size, boolean_t parsable) | |
967 | { | |
968 | if (parsable) { | |
969 | if (fromsnap != NULL) { | |
447e90e3 RM |
970 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
971 | "incremental\t%s\t%s"), fromsnap, tosnap); | |
47dfff3b | 972 | } else { |
447e90e3 RM |
973 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
974 | "full\t%s"), tosnap); | |
47dfff3b | 975 | } |
447e90e3 | 976 | (void) fprintf(fout, "\t%llu", (longlong_t)size); |
47dfff3b MA |
977 | } else { |
978 | if (fromsnap != NULL) { | |
979 | if (strchr(fromsnap, '@') == NULL && | |
980 | strchr(fromsnap, '#') == NULL) { | |
981 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
447e90e3 | 982 | "send from @%s to %s"), fromsnap, tosnap); |
47dfff3b MA |
983 | } else { |
984 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
447e90e3 | 985 | "send from %s to %s"), fromsnap, tosnap); |
47dfff3b MA |
986 | } |
987 | } else { | |
988 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
447e90e3 RM |
989 | "full send of %s"), tosnap); |
990 | } | |
991 | if (size != 0) { | |
992 | char buf[16]; | |
993 | zfs_nicebytes(size, buf, sizeof (buf)); | |
994 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
995 | " estimated size is %s"), buf); | |
47dfff3b | 996 | } |
47dfff3b MA |
997 | } |
998 | (void) fprintf(fout, "\n"); | |
999 | } | |
1000 | ||
1ae78351 RM |
1001 | /* |
1002 | * Send a single filesystem snapshot, updating the send dump data. | |
1003 | * This interface is intended for use as a zfs_iter_snapshots_sorted visitor. | |
1004 | */ | |
34dc7c2f BB |
1005 | static int |
1006 | dump_snapshot(zfs_handle_t *zhp, void *arg) | |
1007 | { | |
1008 | send_dump_data_t *sdd = arg; | |
37abac6d BP |
1009 | progress_arg_t pa = { 0 }; |
1010 | pthread_t tid; | |
572e2857 | 1011 | char *thissnap; |
2aa34383 | 1012 | enum lzc_send_flags flags = 0; |
34dc7c2f | 1013 | int err; |
330d06f9 | 1014 | boolean_t isfromsnap, istosnap, fromorigin; |
428870ff | 1015 | boolean_t exclude = B_FALSE; |
93f6d7e2 | 1016 | FILE *fout = sdd->std_out ? stdout : stderr; |
34dc7c2f | 1017 | |
95fd54a1 | 1018 | err = 0; |
34dc7c2f | 1019 | thissnap = strchr(zhp->zfs_name, '@') + 1; |
428870ff BB |
1020 | isfromsnap = (sdd->fromsnap != NULL && |
1021 | strcmp(sdd->fromsnap, thissnap) == 0); | |
34dc7c2f | 1022 | |
428870ff | 1023 | if (!sdd->seenfrom && isfromsnap) { |
95fd54a1 SH |
1024 | gather_holds(zhp, sdd); |
1025 | sdd->seenfrom = B_TRUE; | |
1ae78351 | 1026 | (void) strlcpy(sdd->prevsnap, thissnap, sizeof (sdd->prevsnap)); |
95fd54a1 | 1027 | sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID); |
34dc7c2f | 1028 | zfs_close(zhp); |
95fd54a1 | 1029 | return (0); |
34dc7c2f BB |
1030 | } |
1031 | ||
1032 | if (sdd->seento || !sdd->seenfrom) { | |
1033 | zfs_close(zhp); | |
1034 | return (0); | |
1035 | } | |
1036 | ||
428870ff BB |
1037 | istosnap = (strcmp(sdd->tosnap, thissnap) == 0); |
1038 | if (istosnap) | |
1039 | sdd->seento = B_TRUE; | |
1040 | ||
2aa34383 DK |
1041 | if (sdd->large_block) |
1042 | flags |= LZC_SEND_FLAG_LARGE_BLOCK; | |
1043 | if (sdd->embed_data) | |
1044 | flags |= LZC_SEND_FLAG_EMBED_DATA; | |
1045 | if (sdd->compress) | |
1046 | flags |= LZC_SEND_FLAG_COMPRESS; | |
b5256303 TC |
1047 | if (sdd->raw) |
1048 | flags |= LZC_SEND_FLAG_RAW; | |
2aa34383 | 1049 | |
428870ff BB |
1050 | if (!sdd->doall && !isfromsnap && !istosnap) { |
1051 | if (sdd->replicate) { | |
1052 | char *snapname; | |
1053 | nvlist_t *snapprops; | |
1054 | /* | |
1055 | * Filter out all intermediate snapshots except origin | |
1056 | * snapshots needed to replicate clones. | |
1057 | */ | |
1058 | nvlist_t *nvfs = fsavl_find(sdd->fsavl, | |
1059 | zhp->zfs_dmustats.dds_guid, &snapname); | |
1060 | ||
97bbeeb9 RM |
1061 | if (nvfs != NULL) { |
1062 | snapprops = fnvlist_lookup_nvlist(nvfs, | |
1063 | "snapprops"); | |
1064 | snapprops = fnvlist_lookup_nvlist(snapprops, | |
1065 | thissnap); | |
1066 | exclude = !nvlist_exists(snapprops, | |
1067 | "is_clone_origin"); | |
1068 | } | |
428870ff BB |
1069 | } else { |
1070 | exclude = B_TRUE; | |
1071 | } | |
1072 | } | |
1073 | ||
1074 | /* | |
1075 | * If a filter function exists, call it to determine whether | |
1076 | * this snapshot will be sent. | |
1077 | */ | |
1078 | if (exclude || (sdd->filter_cb != NULL && | |
1079 | sdd->filter_cb(zhp, sdd->filter_cb_arg) == B_FALSE)) { | |
1080 | /* | |
1081 | * This snapshot is filtered out. Don't send it, and don't | |
572e2857 | 1082 | * set prevsnap_obj, so it will be as if this snapshot didn't |
428870ff BB |
1083 | * exist, and the next accepted snapshot will be sent as |
1084 | * an incremental from the last accepted one, or as the | |
1085 | * first (and full) snapshot in the case of a replication, | |
1086 | * non-incremental send. | |
1087 | */ | |
1088 | zfs_close(zhp); | |
1089 | return (0); | |
1090 | } | |
1091 | ||
95fd54a1 | 1092 | gather_holds(zhp, sdd); |
330d06f9 MA |
1093 | fromorigin = sdd->prevsnap[0] == '\0' && |
1094 | (sdd->fromorigin || sdd->replicate); | |
1095 | ||
30af21b0 | 1096 | if (sdd->verbosity != 0) { |
47dfff3b | 1097 | uint64_t size = 0; |
cf7684bc | 1098 | char fromds[ZFS_MAX_DATASET_NAME_LEN]; |
330d06f9 | 1099 | |
cf7684bc | 1100 | if (sdd->prevsnap[0] != '\0') { |
1101 | (void) strlcpy(fromds, zhp->zfs_name, sizeof (fromds)); | |
1102 | *(strchr(fromds, '@') + 1) = '\0'; | |
1103 | (void) strlcat(fromds, sdd->prevsnap, sizeof (fromds)); | |
1104 | } | |
1105 | if (zfs_send_space(zhp, zhp->zfs_name, | |
1ae78351 | 1106 | sdd->prevsnap[0] ? fromds : NULL, flags, &size) == 0) { |
cf7684bc | 1107 | send_print_verbose(fout, zhp->zfs_name, |
1108 | sdd->prevsnap[0] ? sdd->prevsnap : NULL, | |
1109 | size, sdd->parsable); | |
1ae78351 | 1110 | sdd->size += size; |
cf7684bc | 1111 | } |
34dc7c2f BB |
1112 | } |
1113 | ||
330d06f9 | 1114 | if (!sdd->dryrun) { |
37abac6d BP |
1115 | /* |
1116 | * If progress reporting is requested, spawn a new thread to | |
1117 | * poll ZFS_IOC_SEND_PROGRESS at a regular interval. | |
1118 | */ | |
1119 | if (sdd->progress) { | |
1120 | pa.pa_zhp = zhp; | |
1121 | pa.pa_fd = sdd->outfd; | |
1122 | pa.pa_parsable = sdd->parsable; | |
30af21b0 PD |
1123 | pa.pa_estimate = B_FALSE; |
1124 | pa.pa_verbosity = sdd->verbosity; | |
37abac6d BP |
1125 | |
1126 | if ((err = pthread_create(&tid, NULL, | |
23d70cde | 1127 | send_progress_thread, &pa)) != 0) { |
37abac6d BP |
1128 | zfs_close(zhp); |
1129 | return (err); | |
1130 | } | |
1131 | } | |
1132 | ||
330d06f9 | 1133 | err = dump_ioctl(zhp, sdd->prevsnap, sdd->prevsnap_obj, |
9b67f605 | 1134 | fromorigin, sdd->outfd, flags, sdd->debugnv); |
37abac6d BP |
1135 | |
1136 | if (sdd->progress) { | |
30af21b0 | 1137 | void *status = NULL; |
37abac6d | 1138 | (void) pthread_cancel(tid); |
30af21b0 PD |
1139 | (void) pthread_join(tid, &status); |
1140 | int error = (int)(uintptr_t)status; | |
1141 | if (error != 0 && status != PTHREAD_CANCELED) { | |
30af21b0 | 1142 | return (zfs_standard_error(zhp->zfs_hdl, error, |
1ae78351 RM |
1143 | dgettext(TEXT_DOMAIN, |
1144 | "progress thread exited nonzero"))); | |
30af21b0 | 1145 | } |
37abac6d | 1146 | } |
330d06f9 | 1147 | } |
34dc7c2f | 1148 | |
572e2857 BB |
1149 | (void) strcpy(sdd->prevsnap, thissnap); |
1150 | sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID); | |
34dc7c2f BB |
1151 | zfs_close(zhp); |
1152 | return (err); | |
1153 | } | |
1154 | ||
1910a308 RM |
1155 | /* |
1156 | * Send all snapshots for a filesystem, updating the send dump data. | |
1157 | */ | |
34dc7c2f | 1158 | static int |
1910a308 | 1159 | dump_filesystem(zfs_handle_t *zhp, send_dump_data_t *sdd) |
34dc7c2f BB |
1160 | { |
1161 | int rv = 0; | |
34dc7c2f | 1162 | boolean_t missingfrom = B_FALSE; |
13fe0198 | 1163 | zfs_cmd_t zc = {"\0"}; |
4c0883fb | 1164 | uint64_t min_txg = 0, max_txg = 0; |
34dc7c2f | 1165 | |
1910a308 RM |
1166 | /* |
1167 | * Make sure the tosnap exists. | |
1168 | */ | |
34dc7c2f BB |
1169 | (void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s", |
1170 | zhp->zfs_name, sdd->tosnap); | |
b834b58a | 1171 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_STATS, &zc) != 0) { |
330d06f9 MA |
1172 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
1173 | "WARNING: could not send %s@%s: does not exist\n"), | |
34dc7c2f BB |
1174 | zhp->zfs_name, sdd->tosnap); |
1175 | sdd->err = B_TRUE; | |
1176 | return (0); | |
1177 | } | |
1178 | ||
1910a308 RM |
1179 | /* |
1180 | * If this fs does not have fromsnap, and we're doing | |
1181 | * recursive, we need to send a full stream from the | |
1182 | * beginning (or an incremental from the origin if this | |
1183 | * is a clone). If we're doing non-recursive, then let | |
1184 | * them get the error. | |
1185 | */ | |
34dc7c2f BB |
1186 | if (sdd->replicate && sdd->fromsnap) { |
1187 | /* | |
1910a308 | 1188 | * Make sure the fromsnap exists. |
34dc7c2f BB |
1189 | */ |
1190 | (void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s", | |
1191 | zhp->zfs_name, sdd->fromsnap); | |
1910a308 | 1192 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_STATS, &zc) != 0) |
34dc7c2f | 1193 | missingfrom = B_TRUE; |
34dc7c2f BB |
1194 | } |
1195 | ||
1910a308 RM |
1196 | sdd->seenfrom = sdd->seento = B_FALSE; |
1197 | sdd->prevsnap[0] = '\0'; | |
572e2857 | 1198 | sdd->prevsnap_obj = 0; |
428870ff BB |
1199 | if (sdd->fromsnap == NULL || missingfrom) |
1200 | sdd->seenfrom = B_TRUE; | |
34dc7c2f | 1201 | |
f94b3cbf TC |
1202 | /* |
1203 | * Iterate through all snapshots and process the ones we will be | |
1204 | * sending. If we only have a "from" and "to" snapshot to deal | |
1205 | * with, we can avoid iterating through all the other snapshots. | |
1206 | */ | |
1207 | if (sdd->doall || sdd->replicate || sdd->tosnap == NULL) { | |
1910a308 RM |
1208 | if (!sdd->replicate) { |
1209 | if (sdd->fromsnap != NULL) { | |
1210 | min_txg = get_snap_txg(zhp->zfs_hdl, | |
1211 | zhp->zfs_name, sdd->fromsnap); | |
1212 | } | |
1213 | if (sdd->tosnap != NULL) { | |
1214 | max_txg = get_snap_txg(zhp->zfs_hdl, | |
1215 | zhp->zfs_name, sdd->tosnap); | |
1216 | } | |
1217 | } | |
1218 | rv = zfs_iter_snapshots_sorted(zhp, dump_snapshot, sdd, | |
f94b3cbf TC |
1219 | min_txg, max_txg); |
1220 | } else { | |
1221 | char snapname[MAXPATHLEN] = { 0 }; | |
1222 | zfs_handle_t *snap; | |
1223 | ||
1910a308 | 1224 | /* Dump fromsnap. */ |
f94b3cbf | 1225 | if (!sdd->seenfrom) { |
f0ce0436 | 1226 | (void) snprintf(snapname, sizeof (snapname), |
f94b3cbf TC |
1227 | "%s@%s", zhp->zfs_name, sdd->fromsnap); |
1228 | snap = zfs_open(zhp->zfs_hdl, snapname, | |
1229 | ZFS_TYPE_SNAPSHOT); | |
1230 | if (snap != NULL) | |
1231 | rv = dump_snapshot(snap, sdd); | |
1232 | else | |
1233 | rv = -1; | |
1234 | } | |
1235 | ||
1910a308 | 1236 | /* Dump tosnap. */ |
f94b3cbf | 1237 | if (rv == 0) { |
f0ce0436 | 1238 | (void) snprintf(snapname, sizeof (snapname), |
f94b3cbf TC |
1239 | "%s@%s", zhp->zfs_name, sdd->tosnap); |
1240 | snap = zfs_open(zhp->zfs_hdl, snapname, | |
1241 | ZFS_TYPE_SNAPSHOT); | |
1242 | if (snap != NULL) | |
1243 | rv = dump_snapshot(snap, sdd); | |
1244 | else | |
1245 | rv = -1; | |
1246 | } | |
1247 | } | |
1248 | ||
428870ff | 1249 | if (!sdd->seenfrom) { |
330d06f9 | 1250 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
428870ff | 1251 | "WARNING: could not send %s@%s:\n" |
330d06f9 | 1252 | "incremental source (%s@%s) does not exist\n"), |
428870ff BB |
1253 | zhp->zfs_name, sdd->tosnap, |
1254 | zhp->zfs_name, sdd->fromsnap); | |
1255 | sdd->err = B_TRUE; | |
1256 | } else if (!sdd->seento) { | |
1257 | if (sdd->fromsnap) { | |
330d06f9 | 1258 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
34dc7c2f | 1259 | "WARNING: could not send %s@%s:\n" |
428870ff | 1260 | "incremental source (%s@%s) " |
330d06f9 | 1261 | "is not earlier than it\n"), |
34dc7c2f BB |
1262 | zhp->zfs_name, sdd->tosnap, |
1263 | zhp->zfs_name, sdd->fromsnap); | |
34dc7c2f | 1264 | } else { |
330d06f9 MA |
1265 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
1266 | "WARNING: " | |
1267 | "could not send %s@%s: does not exist\n"), | |
428870ff | 1268 | zhp->zfs_name, sdd->tosnap); |
34dc7c2f | 1269 | } |
428870ff | 1270 | sdd->err = B_TRUE; |
34dc7c2f BB |
1271 | } |
1272 | ||
1273 | return (rv); | |
1274 | } | |
1275 | ||
45932229 RM |
1276 | /* |
1277 | * Send all snapshots for all filesystems in sdd. | |
1278 | */ | |
34dc7c2f | 1279 | static int |
45932229 | 1280 | dump_filesystems(zfs_handle_t *rzhp, send_dump_data_t *sdd) |
34dc7c2f | 1281 | { |
34dc7c2f BB |
1282 | nvpair_t *fspair; |
1283 | boolean_t needagain, progress; | |
1284 | ||
1285 | if (!sdd->replicate) | |
1286 | return (dump_filesystem(rzhp, sdd)); | |
1287 | ||
428870ff BB |
1288 | /* Mark the clone origin snapshots. */ |
1289 | for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; | |
1290 | fspair = nvlist_next_nvpair(sdd->fss, fspair)) { | |
1291 | nvlist_t *nvfs; | |
1292 | uint64_t origin_guid = 0; | |
1293 | ||
60a2434b | 1294 | nvfs = fnvpair_value_nvlist(fspair); |
428870ff BB |
1295 | (void) nvlist_lookup_uint64(nvfs, "origin", &origin_guid); |
1296 | if (origin_guid != 0) { | |
1297 | char *snapname; | |
1298 | nvlist_t *origin_nv = fsavl_find(sdd->fsavl, | |
1299 | origin_guid, &snapname); | |
1300 | if (origin_nv != NULL) { | |
1301 | nvlist_t *snapprops; | |
60a2434b RM |
1302 | snapprops = fnvlist_lookup_nvlist(origin_nv, |
1303 | "snapprops"); | |
1304 | snapprops = fnvlist_lookup_nvlist(snapprops, | |
1305 | snapname); | |
1306 | fnvlist_add_boolean(snapprops, | |
1307 | "is_clone_origin"); | |
428870ff BB |
1308 | } |
1309 | } | |
1310 | } | |
34dc7c2f BB |
1311 | again: |
1312 | needagain = progress = B_FALSE; | |
1313 | for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; | |
1314 | fspair = nvlist_next_nvpair(sdd->fss, fspair)) { | |
330d06f9 | 1315 | nvlist_t *fslist, *parent_nv; |
34dc7c2f BB |
1316 | char *fsname; |
1317 | zfs_handle_t *zhp; | |
1318 | int err; | |
1319 | uint64_t origin_guid = 0; | |
330d06f9 | 1320 | uint64_t parent_guid = 0; |
34dc7c2f | 1321 | |
60a2434b | 1322 | fslist = fnvpair_value_nvlist(fspair); |
34dc7c2f BB |
1323 | if (nvlist_lookup_boolean(fslist, "sent") == 0) |
1324 | continue; | |
1325 | ||
60a2434b | 1326 | fsname = fnvlist_lookup_string(fslist, "name"); |
34dc7c2f | 1327 | (void) nvlist_lookup_uint64(fslist, "origin", &origin_guid); |
330d06f9 MA |
1328 | (void) nvlist_lookup_uint64(fslist, "parentfromsnap", |
1329 | &parent_guid); | |
1330 | ||
1331 | if (parent_guid != 0) { | |
1332 | parent_nv = fsavl_find(sdd->fsavl, parent_guid, NULL); | |
1333 | if (!nvlist_exists(parent_nv, "sent")) { | |
45932229 | 1334 | /* Parent has not been sent; skip this one. */ |
330d06f9 MA |
1335 | needagain = B_TRUE; |
1336 | continue; | |
1337 | } | |
1338 | } | |
34dc7c2f | 1339 | |
428870ff BB |
1340 | if (origin_guid != 0) { |
1341 | nvlist_t *origin_nv = fsavl_find(sdd->fsavl, | |
1342 | origin_guid, NULL); | |
1343 | if (origin_nv != NULL && | |
330d06f9 | 1344 | !nvlist_exists(origin_nv, "sent")) { |
428870ff | 1345 | /* |
45932229 | 1346 | * Origin has not been sent yet; |
428870ff BB |
1347 | * skip this clone. |
1348 | */ | |
1349 | needagain = B_TRUE; | |
1350 | continue; | |
1351 | } | |
34dc7c2f BB |
1352 | } |
1353 | ||
1354 | zhp = zfs_open(rzhp->zfs_hdl, fsname, ZFS_TYPE_DATASET); | |
1355 | if (zhp == NULL) | |
1356 | return (-1); | |
1357 | err = dump_filesystem(zhp, sdd); | |
60a2434b | 1358 | fnvlist_add_boolean(fslist, "sent"); |
34dc7c2f BB |
1359 | progress = B_TRUE; |
1360 | zfs_close(zhp); | |
1361 | if (err) | |
1362 | return (err); | |
1363 | } | |
1364 | if (needagain) { | |
1365 | assert(progress); | |
1366 | goto again; | |
1367 | } | |
330d06f9 | 1368 | |
45932229 | 1369 | /* Clean out the sent flags in case we reuse this fss. */ |
330d06f9 MA |
1370 | for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; |
1371 | fspair = nvlist_next_nvpair(sdd->fss, fspair)) { | |
1372 | nvlist_t *fslist; | |
1373 | ||
60a2434b | 1374 | fslist = fnvpair_value_nvlist(fspair); |
330d06f9 MA |
1375 | (void) nvlist_remove_all(fslist, "sent"); |
1376 | } | |
1377 | ||
34dc7c2f BB |
1378 | return (0); |
1379 | } | |
1380 | ||
47dfff3b MA |
1381 | nvlist_t * |
1382 | zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, const char *token) | |
1383 | { | |
1384 | unsigned int version; | |
1385 | int nread, i; | |
1386 | unsigned long long checksum, packed_len; | |
1387 | ||
1388 | /* | |
1389 | * Decode token header, which is: | |
1390 | * <token version>-<checksum of payload>-<uncompressed payload length> | |
1391 | * Note that the only supported token version is 1. | |
1392 | */ | |
1393 | nread = sscanf(token, "%u-%llx-%llx-", | |
1394 | &version, &checksum, &packed_len); | |
1395 | if (nread != 3) { | |
1396 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1397 | "resume token is corrupt (invalid format)")); | |
1398 | return (NULL); | |
1399 | } | |
1400 | ||
1401 | if (version != ZFS_SEND_RESUME_TOKEN_VERSION) { | |
1402 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1403 | "resume token is corrupt (invalid version %u)"), | |
1404 | version); | |
1405 | return (NULL); | |
1406 | } | |
1407 | ||
2fafbfde | 1408 | /* Convert hexadecimal representation to binary. */ |
47dfff3b MA |
1409 | token = strrchr(token, '-') + 1; |
1410 | int len = strlen(token) / 2; | |
1411 | unsigned char *compressed = zfs_alloc(hdl, len); | |
1412 | for (i = 0; i < len; i++) { | |
1413 | nread = sscanf(token + i * 2, "%2hhx", compressed + i); | |
1414 | if (nread != 1) { | |
1415 | free(compressed); | |
1416 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1417 | "resume token is corrupt " | |
1418 | "(payload is not hex-encoded)")); | |
1419 | return (NULL); | |
1420 | } | |
1421 | } | |
1422 | ||
2fafbfde | 1423 | /* Verify checksum. */ |
47dfff3b | 1424 | zio_cksum_t cksum; |
fc897b24 | 1425 | fletcher_4_native_varsize(compressed, len, &cksum); |
47dfff3b MA |
1426 | if (cksum.zc_word[0] != checksum) { |
1427 | free(compressed); | |
1428 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1429 | "resume token is corrupt (incorrect checksum)")); | |
1430 | return (NULL); | |
1431 | } | |
1432 | ||
2fafbfde | 1433 | /* Uncompress. */ |
47dfff3b MA |
1434 | void *packed = zfs_alloc(hdl, packed_len); |
1435 | uLongf packed_len_long = packed_len; | |
1436 | if (uncompress(packed, &packed_len_long, compressed, len) != Z_OK || | |
1437 | packed_len_long != packed_len) { | |
1438 | free(packed); | |
1439 | free(compressed); | |
1440 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1441 | "resume token is corrupt (decompression failed)")); | |
1442 | return (NULL); | |
1443 | } | |
1444 | ||
2fafbfde | 1445 | /* Unpack nvlist. */ |
47dfff3b MA |
1446 | nvlist_t *nv; |
1447 | int error = nvlist_unpack(packed, packed_len, &nv, KM_SLEEP); | |
1448 | free(packed); | |
1449 | free(compressed); | |
1450 | if (error != 0) { | |
1451 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1452 | "resume token is corrupt (nvlist_unpack failed)")); | |
1453 | return (NULL); | |
1454 | } | |
1455 | return (nv); | |
1456 | } | |
2fafbfde | 1457 | |
30af21b0 PD |
1458 | static enum lzc_send_flags |
1459 | lzc_flags_from_sendflags(const sendflags_t *flags) | |
1460 | { | |
1461 | enum lzc_send_flags lzc_flags = 0; | |
d1a38ee7 | 1462 | |
30af21b0 PD |
1463 | if (flags->largeblock) |
1464 | lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; | |
1465 | if (flags->embed_data) | |
1466 | lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; | |
1467 | if (flags->compress) | |
1468 | lzc_flags |= LZC_SEND_FLAG_COMPRESS; | |
1469 | if (flags->raw) | |
1470 | lzc_flags |= LZC_SEND_FLAG_RAW; | |
ba0ba69e TC |
1471 | if (flags->saved) |
1472 | lzc_flags |= LZC_SEND_FLAG_SAVED; | |
d1a38ee7 | 1473 | |
30af21b0 PD |
1474 | return (lzc_flags); |
1475 | } | |
1476 | ||
1477 | static int | |
1478 | estimate_size(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags, | |
1479 | uint64_t resumeobj, uint64_t resumeoff, uint64_t bytes, | |
1480 | const char *redactbook, char *errbuf) | |
1481 | { | |
1482 | uint64_t size; | |
1483 | FILE *fout = flags->dryrun ? stdout : stderr; | |
1484 | progress_arg_t pa = { 0 }; | |
1485 | int err = 0; | |
1486 | pthread_t ptid; | |
1487 | ||
1488 | if (flags->progress) { | |
1489 | pa.pa_zhp = zhp; | |
1490 | pa.pa_fd = fd; | |
1491 | pa.pa_parsable = flags->parsable; | |
1492 | pa.pa_estimate = B_TRUE; | |
1493 | pa.pa_verbosity = flags->verbosity; | |
1494 | ||
1495 | err = pthread_create(&ptid, NULL, | |
1496 | send_progress_thread, &pa); | |
1497 | if (err != 0) { | |
f00f4690 | 1498 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno)); |
30af21b0 PD |
1499 | return (zfs_error(zhp->zfs_hdl, |
1500 | EZFS_THREADCREATEFAILED, errbuf)); | |
1501 | } | |
1502 | } | |
1503 | ||
1504 | err = lzc_send_space_resume_redacted(zhp->zfs_name, from, | |
1505 | lzc_flags_from_sendflags(flags), resumeobj, resumeoff, bytes, | |
1506 | redactbook, fd, &size); | |
1507 | ||
1508 | if (flags->progress) { | |
1509 | void *status = NULL; | |
1510 | (void) pthread_cancel(ptid); | |
1511 | (void) pthread_join(ptid, &status); | |
1512 | int error = (int)(uintptr_t)status; | |
1513 | if (error != 0 && status != PTHREAD_CANCELED) { | |
1514 | char errbuf[1024]; | |
1515 | (void) snprintf(errbuf, sizeof (errbuf), | |
1516 | dgettext(TEXT_DOMAIN, "progress thread exited " | |
1517 | "nonzero")); | |
1518 | return (zfs_standard_error(zhp->zfs_hdl, error, | |
1519 | errbuf)); | |
1520 | } | |
1521 | } | |
1522 | ||
1523 | if (err != 0) { | |
f00f4690 | 1524 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err)); |
30af21b0 PD |
1525 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, |
1526 | errbuf)); | |
1527 | } | |
1528 | send_print_verbose(fout, zhp->zfs_name, from, size, | |
1529 | flags->parsable); | |
1530 | ||
1531 | if (flags->parsable) { | |
1532 | (void) fprintf(fout, "size\t%llu\n", (longlong_t)size); | |
1533 | } else { | |
1534 | char buf[16]; | |
1535 | zfs_nicenum(size, buf, sizeof (buf)); | |
1536 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
1537 | "total estimated size is %s\n"), buf); | |
1538 | } | |
1539 | return (0); | |
1540 | } | |
1541 | ||
1542 | static boolean_t | |
1543 | redact_snaps_contains(const uint64_t *snaps, uint64_t num_snaps, uint64_t guid) | |
1544 | { | |
1545 | for (int i = 0; i < num_snaps; i++) { | |
1546 | if (snaps[i] == guid) | |
1547 | return (B_TRUE); | |
1548 | } | |
1549 | return (B_FALSE); | |
1550 | } | |
1551 | ||
1552 | static boolean_t | |
1553 | redact_snaps_equal(const uint64_t *snaps1, uint64_t num_snaps1, | |
1554 | const uint64_t *snaps2, uint64_t num_snaps2) | |
1555 | { | |
1556 | if (num_snaps1 != num_snaps2) | |
1557 | return (B_FALSE); | |
1558 | for (int i = 0; i < num_snaps1; i++) { | |
1559 | if (!redact_snaps_contains(snaps2, num_snaps2, snaps1[i])) | |
1560 | return (B_FALSE); | |
1561 | } | |
1562 | return (B_TRUE); | |
1563 | } | |
1564 | ||
102eb673 RM |
1565 | static int |
1566 | get_bookmarks(const char *path, nvlist_t **bmarksp) | |
1567 | { | |
1568 | nvlist_t *props = fnvlist_alloc(); | |
1569 | int error; | |
1570 | ||
1571 | fnvlist_add_boolean(props, "redact_complete"); | |
1572 | fnvlist_add_boolean(props, zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS)); | |
1573 | error = lzc_get_bookmarks(path, props, bmarksp); | |
1574 | fnvlist_free(props); | |
1575 | return (error); | |
1576 | } | |
1577 | ||
1578 | static nvpair_t * | |
1579 | find_redact_pair(nvlist_t *bmarks, const uint64_t *redact_snap_guids, | |
1580 | int num_redact_snaps) | |
1581 | { | |
1582 | nvpair_t *pair; | |
1583 | ||
1584 | for (pair = nvlist_next_nvpair(bmarks, NULL); pair; | |
1585 | pair = nvlist_next_nvpair(bmarks, pair)) { | |
1586 | ||
1587 | nvlist_t *bmark = fnvpair_value_nvlist(pair); | |
1588 | nvlist_t *vallist = fnvlist_lookup_nvlist(bmark, | |
1589 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS)); | |
1590 | uint_t len = 0; | |
1591 | uint64_t *bmarksnaps = fnvlist_lookup_uint64_array(vallist, | |
1592 | ZPROP_VALUE, &len); | |
1593 | if (redact_snaps_equal(redact_snap_guids, | |
1594 | num_redact_snaps, bmarksnaps, len)) { | |
1595 | break; | |
1596 | } | |
1597 | } | |
1598 | return (pair); | |
1599 | } | |
1600 | ||
1601 | static boolean_t | |
1602 | get_redact_complete(nvpair_t *pair) | |
1603 | { | |
1604 | nvlist_t *bmark = fnvpair_value_nvlist(pair); | |
1605 | nvlist_t *vallist = fnvlist_lookup_nvlist(bmark, "redact_complete"); | |
1606 | boolean_t complete = fnvlist_lookup_boolean_value(vallist, | |
1607 | ZPROP_VALUE); | |
1608 | ||
1609 | return (complete); | |
1610 | } | |
1611 | ||
30af21b0 PD |
1612 | /* |
1613 | * Check that the list of redaction snapshots in the bookmark matches the send | |
1614 | * we're resuming, and return whether or not it's complete. | |
1615 | * | |
1616 | * Note that the caller needs to free the contents of *bookname with free() if | |
1617 | * this function returns successfully. | |
1618 | */ | |
1619 | static int | |
1620 | find_redact_book(libzfs_handle_t *hdl, const char *path, | |
1621 | const uint64_t *redact_snap_guids, int num_redact_snaps, | |
1622 | char **bookname) | |
1623 | { | |
1624 | char errbuf[1024]; | |
30af21b0 PD |
1625 | nvlist_t *bmarks; |
1626 | ||
1627 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1628 | "cannot resume send")); | |
1629 | ||
102eb673 | 1630 | int error = get_bookmarks(path, &bmarks); |
30af21b0 PD |
1631 | if (error != 0) { |
1632 | if (error == ESRCH) { | |
1633 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1634 | "nonexistent redaction bookmark provided")); | |
1635 | } else if (error == ENOENT) { | |
1636 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1637 | "dataset to be sent no longer exists")); | |
1638 | } else { | |
1639 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1640 | "unknown error: %s"), strerror(error)); | |
1641 | } | |
1642 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1643 | } | |
102eb673 RM |
1644 | nvpair_t *pair = find_redact_pair(bmarks, redact_snap_guids, |
1645 | num_redact_snaps); | |
30af21b0 PD |
1646 | if (pair == NULL) { |
1647 | fnvlist_free(bmarks); | |
1648 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1649 | "no appropriate redaction bookmark exists")); | |
1650 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1651 | } | |
102eb673 | 1652 | boolean_t complete = get_redact_complete(pair); |
30af21b0 PD |
1653 | if (!complete) { |
1654 | fnvlist_free(bmarks); | |
1655 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1656 | "incomplete redaction bookmark provided")); | |
1657 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1658 | } | |
102eb673 | 1659 | *bookname = strndup(nvpair_name(pair), ZFS_MAX_DATASET_NAME_LEN); |
30af21b0 PD |
1660 | ASSERT3P(*bookname, !=, NULL); |
1661 | fnvlist_free(bmarks); | |
1662 | return (0); | |
1663 | } | |
47dfff3b | 1664 | |
d1a38ee7 RM |
1665 | static enum lzc_send_flags |
1666 | lzc_flags_from_resume_nvl(nvlist_t *resume_nvl) | |
1667 | { | |
1668 | enum lzc_send_flags lzc_flags = 0; | |
1669 | ||
1670 | if (nvlist_exists(resume_nvl, "largeblockok")) | |
1671 | lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; | |
1672 | if (nvlist_exists(resume_nvl, "embedok")) | |
1673 | lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; | |
1674 | if (nvlist_exists(resume_nvl, "compressok")) | |
1675 | lzc_flags |= LZC_SEND_FLAG_COMPRESS; | |
1676 | if (nvlist_exists(resume_nvl, "rawok")) | |
1677 | lzc_flags |= LZC_SEND_FLAG_RAW; | |
1678 | if (nvlist_exists(resume_nvl, "savedok")) | |
1679 | lzc_flags |= LZC_SEND_FLAG_SAVED; | |
1680 | ||
1681 | return (lzc_flags); | |
1682 | } | |
1683 | ||
ba0ba69e | 1684 | static int |
3a909fe3 AZ |
1685 | zfs_send_resume_impl_cb_impl(libzfs_handle_t *hdl, sendflags_t *flags, |
1686 | int outfd, nvlist_t *resume_nvl) | |
47dfff3b MA |
1687 | { |
1688 | char errbuf[1024]; | |
1689 | char *toname; | |
1690 | char *fromname = NULL; | |
1691 | uint64_t resumeobj, resumeoff, toguid, fromguid, bytes; | |
1692 | zfs_handle_t *zhp; | |
1693 | int error = 0; | |
eca7b760 | 1694 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
30af21b0 PD |
1695 | FILE *fout = (flags->verbosity > 0 && flags->dryrun) ? stdout : stderr; |
1696 | uint64_t *redact_snap_guids = NULL; | |
1697 | int num_redact_snaps = 0; | |
1698 | char *redact_book = NULL; | |
47dfff3b MA |
1699 | |
1700 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1701 | "cannot resume send")); | |
1702 | ||
30af21b0 | 1703 | if (flags->verbosity != 0) { |
aee1dd4d | 1704 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
47dfff3b | 1705 | "resume token contents:\n")); |
aee1dd4d | 1706 | nvlist_print(fout, resume_nvl); |
47dfff3b MA |
1707 | } |
1708 | ||
1709 | if (nvlist_lookup_string(resume_nvl, "toname", &toname) != 0 || | |
1710 | nvlist_lookup_uint64(resume_nvl, "object", &resumeobj) != 0 || | |
1711 | nvlist_lookup_uint64(resume_nvl, "offset", &resumeoff) != 0 || | |
1712 | nvlist_lookup_uint64(resume_nvl, "bytes", &bytes) != 0 || | |
1713 | nvlist_lookup_uint64(resume_nvl, "toguid", &toguid) != 0) { | |
1714 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1715 | "resume token is corrupt")); | |
1716 | return (zfs_error(hdl, EZFS_FAULT, errbuf)); | |
1717 | } | |
1718 | fromguid = 0; | |
1719 | (void) nvlist_lookup_uint64(resume_nvl, "fromguid", &fromguid); | |
1720 | ||
ba0ba69e TC |
1721 | if (flags->saved) { |
1722 | (void) strcpy(name, toname); | |
1723 | } else { | |
1724 | error = guid_to_name(hdl, toname, toguid, B_FALSE, name); | |
1725 | if (error != 0) { | |
1726 | if (zfs_dataset_exists(hdl, toname, ZFS_TYPE_DATASET)) { | |
1727 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1728 | "'%s' is no longer the same snapshot " | |
1729 | "used in the initial send"), toname); | |
1730 | } else { | |
1731 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1732 | "'%s' used in the initial send no " | |
1733 | "longer exists"), toname); | |
1734 | } | |
1735 | return (zfs_error(hdl, EZFS_BADPATH, errbuf)); | |
47dfff3b | 1736 | } |
47dfff3b | 1737 | } |
ba0ba69e | 1738 | |
47dfff3b MA |
1739 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); |
1740 | if (zhp == NULL) { | |
1741 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1742 | "unable to access '%s'"), name); | |
1743 | return (zfs_error(hdl, EZFS_BADPATH, errbuf)); | |
1744 | } | |
1745 | ||
30af21b0 PD |
1746 | if (nvlist_lookup_uint64_array(resume_nvl, "book_redact_snaps", |
1747 | &redact_snap_guids, (uint_t *)&num_redact_snaps) != 0) { | |
1748 | num_redact_snaps = -1; | |
1749 | } | |
1750 | ||
47dfff3b | 1751 | if (fromguid != 0) { |
30af21b0 PD |
1752 | if (guid_to_name_redact_snaps(hdl, toname, fromguid, B_TRUE, |
1753 | redact_snap_guids, num_redact_snaps, name) != 0) { | |
47dfff3b MA |
1754 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
1755 | "incremental source %#llx no longer exists"), | |
1756 | (longlong_t)fromguid); | |
1757 | return (zfs_error(hdl, EZFS_BADPATH, errbuf)); | |
1758 | } | |
1759 | fromname = name; | |
1760 | } | |
1761 | ||
30af21b0 PD |
1762 | redact_snap_guids = NULL; |
1763 | ||
1764 | if (nvlist_lookup_uint64_array(resume_nvl, | |
1765 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS), &redact_snap_guids, | |
1766 | (uint_t *)&num_redact_snaps) == 0) { | |
1767 | char path[ZFS_MAX_DATASET_NAME_LEN]; | |
1768 | ||
1769 | (void) strlcpy(path, toname, sizeof (path)); | |
1770 | char *at = strchr(path, '@'); | |
1771 | ASSERT3P(at, !=, NULL); | |
1772 | ||
1773 | *at = '\0'; | |
1774 | ||
1775 | if ((error = find_redact_book(hdl, path, redact_snap_guids, | |
1776 | num_redact_snaps, &redact_book)) != 0) { | |
1777 | return (error); | |
1778 | } | |
1779 | } | |
1780 | ||
d1a38ee7 RM |
1781 | enum lzc_send_flags lzc_flags = lzc_flags_from_sendflags(flags) | |
1782 | lzc_flags_from_resume_nvl(resume_nvl); | |
1783 | ||
30af21b0 PD |
1784 | if (flags->verbosity != 0) { |
1785 | /* | |
1786 | * Some of these may have come from the resume token, set them | |
1787 | * here for size estimate purposes. | |
1788 | */ | |
1789 | sendflags_t tmpflags = *flags; | |
1790 | if (lzc_flags & LZC_SEND_FLAG_LARGE_BLOCK) | |
1791 | tmpflags.largeblock = B_TRUE; | |
1792 | if (lzc_flags & LZC_SEND_FLAG_COMPRESS) | |
1793 | tmpflags.compress = B_TRUE; | |
1794 | if (lzc_flags & LZC_SEND_FLAG_EMBED_DATA) | |
1795 | tmpflags.embed_data = B_TRUE; | |
8f11b1d2 PD |
1796 | if (lzc_flags & LZC_SEND_FLAG_RAW) |
1797 | tmpflags.raw = B_TRUE; | |
1798 | if (lzc_flags & LZC_SEND_FLAG_SAVED) | |
1799 | tmpflags.saved = B_TRUE; | |
30af21b0 PD |
1800 | error = estimate_size(zhp, fromname, outfd, &tmpflags, |
1801 | resumeobj, resumeoff, bytes, redact_book, errbuf); | |
47dfff3b MA |
1802 | } |
1803 | ||
1804 | if (!flags->dryrun) { | |
1805 | progress_arg_t pa = { 0 }; | |
1806 | pthread_t tid; | |
1807 | /* | |
1808 | * If progress reporting is requested, spawn a new thread to | |
1809 | * poll ZFS_IOC_SEND_PROGRESS at a regular interval. | |
1810 | */ | |
1811 | if (flags->progress) { | |
1812 | pa.pa_zhp = zhp; | |
1813 | pa.pa_fd = outfd; | |
1814 | pa.pa_parsable = flags->parsable; | |
30af21b0 PD |
1815 | pa.pa_estimate = B_FALSE; |
1816 | pa.pa_verbosity = flags->verbosity; | |
47dfff3b MA |
1817 | |
1818 | error = pthread_create(&tid, NULL, | |
1819 | send_progress_thread, &pa); | |
1820 | if (error != 0) { | |
30af21b0 PD |
1821 | if (redact_book != NULL) |
1822 | free(redact_book); | |
47dfff3b MA |
1823 | zfs_close(zhp); |
1824 | return (error); | |
1825 | } | |
1826 | } | |
1827 | ||
30af21b0 PD |
1828 | error = lzc_send_resume_redacted(zhp->zfs_name, fromname, outfd, |
1829 | lzc_flags, resumeobj, resumeoff, redact_book); | |
1830 | if (redact_book != NULL) | |
1831 | free(redact_book); | |
47dfff3b MA |
1832 | |
1833 | if (flags->progress) { | |
30af21b0 | 1834 | void *status = NULL; |
47dfff3b | 1835 | (void) pthread_cancel(tid); |
30af21b0 PD |
1836 | (void) pthread_join(tid, &status); |
1837 | int error = (int)(uintptr_t)status; | |
1838 | if (error != 0 && status != PTHREAD_CANCELED) { | |
1839 | char errbuf[1024]; | |
1840 | (void) snprintf(errbuf, sizeof (errbuf), | |
1841 | dgettext(TEXT_DOMAIN, | |
1842 | "progress thread exited nonzero")); | |
1843 | return (zfs_standard_error(hdl, error, errbuf)); | |
1844 | } | |
47dfff3b MA |
1845 | } |
1846 | ||
1847 | char errbuf[1024]; | |
1848 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1849 | "warning: cannot send '%s'"), zhp->zfs_name); | |
1850 | ||
1851 | zfs_close(zhp); | |
1852 | ||
1853 | switch (error) { | |
1854 | case 0: | |
1855 | return (0); | |
b5256303 TC |
1856 | case EACCES: |
1857 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1858 | "source key must be loaded")); | |
1859 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
30af21b0 PD |
1860 | case ESRCH: |
1861 | if (lzc_exists(zhp->zfs_name)) { | |
1862 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1863 | "incremental source could not be found")); | |
1864 | } | |
1865 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
b5256303 | 1866 | |
47dfff3b MA |
1867 | case EXDEV: |
1868 | case ENOENT: | |
1869 | case EDQUOT: | |
1870 | case EFBIG: | |
1871 | case EIO: | |
1872 | case ENOLINK: | |
1873 | case ENOSPC: | |
1874 | case ENOSTR: | |
1875 | case ENXIO: | |
1876 | case EPIPE: | |
1877 | case ERANGE: | |
1878 | case EFAULT: | |
1879 | case EROFS: | |
f00f4690 | 1880 | zfs_error_aux(hdl, "%s", strerror(errno)); |
47dfff3b MA |
1881 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); |
1882 | ||
1883 | default: | |
1884 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1885 | } | |
30af21b0 PD |
1886 | } else { |
1887 | if (redact_book != NULL) | |
1888 | free(redact_book); | |
47dfff3b MA |
1889 | } |
1890 | ||
47dfff3b MA |
1891 | zfs_close(zhp); |
1892 | ||
1893 | return (error); | |
1894 | } | |
1895 | ||
3a909fe3 AZ |
1896 | struct zfs_send_resume_impl { |
1897 | libzfs_handle_t *hdl; | |
1898 | sendflags_t *flags; | |
1899 | nvlist_t *resume_nvl; | |
1900 | }; | |
1901 | ||
1902 | static int | |
1903 | zfs_send_resume_impl_cb(int outfd, void *arg) | |
1904 | { | |
1905 | struct zfs_send_resume_impl *zsri = arg; | |
1906 | return (zfs_send_resume_impl_cb_impl(zsri->hdl, zsri->flags, outfd, | |
1907 | zsri->resume_nvl)); | |
1908 | } | |
1909 | ||
1910 | static int | |
1911 | zfs_send_resume_impl(libzfs_handle_t *hdl, sendflags_t *flags, int outfd, | |
1912 | nvlist_t *resume_nvl) | |
1913 | { | |
1914 | struct zfs_send_resume_impl zsri = { | |
1915 | .hdl = hdl, | |
1916 | .flags = flags, | |
1917 | .resume_nvl = resume_nvl, | |
1918 | }; | |
1919 | return (lzc_send_wrapper(zfs_send_resume_impl_cb, outfd, &zsri)); | |
1920 | } | |
1921 | ||
ba0ba69e TC |
1922 | int |
1923 | zfs_send_resume(libzfs_handle_t *hdl, sendflags_t *flags, int outfd, | |
1924 | const char *resume_token) | |
1925 | { | |
1926 | int ret; | |
1927 | char errbuf[1024]; | |
1928 | nvlist_t *resume_nvl; | |
1929 | ||
1930 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1931 | "cannot resume send")); | |
1932 | ||
1933 | resume_nvl = zfs_send_resume_token_to_nvlist(hdl, resume_token); | |
1934 | if (resume_nvl == NULL) { | |
1935 | /* | |
1936 | * zfs_error_aux has already been set by | |
1937 | * zfs_send_resume_token_to_nvlist() | |
1938 | */ | |
1939 | return (zfs_error(hdl, EZFS_FAULT, errbuf)); | |
1940 | } | |
1941 | ||
1942 | ret = zfs_send_resume_impl(hdl, flags, outfd, resume_nvl); | |
60a2434b | 1943 | fnvlist_free(resume_nvl); |
ba0ba69e TC |
1944 | |
1945 | return (ret); | |
1946 | } | |
1947 | ||
1948 | int | |
1949 | zfs_send_saved(zfs_handle_t *zhp, sendflags_t *flags, int outfd, | |
1950 | const char *resume_token) | |
1951 | { | |
1952 | int ret; | |
1953 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
1954 | nvlist_t *saved_nvl = NULL, *resume_nvl = NULL; | |
1955 | uint64_t saved_guid = 0, resume_guid = 0; | |
1956 | uint64_t obj = 0, off = 0, bytes = 0; | |
1957 | char token_buf[ZFS_MAXPROPLEN]; | |
1958 | char errbuf[1024]; | |
1959 | ||
1960 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1961 | "saved send failed")); | |
1962 | ||
1963 | ret = zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, | |
1964 | token_buf, sizeof (token_buf), NULL, NULL, 0, B_TRUE); | |
1965 | if (ret != 0) | |
1966 | goto out; | |
1967 | ||
1968 | saved_nvl = zfs_send_resume_token_to_nvlist(hdl, token_buf); | |
1969 | if (saved_nvl == NULL) { | |
1970 | /* | |
1971 | * zfs_error_aux has already been set by | |
1972 | * zfs_send_resume_token_to_nvlist() | |
1973 | */ | |
1974 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
1975 | goto out; | |
1976 | } | |
1977 | ||
1978 | /* | |
1979 | * If a resume token is provided we use the object and offset | |
1980 | * from that instead of the default, which starts from the | |
1981 | * beginning. | |
1982 | */ | |
1983 | if (resume_token != NULL) { | |
1984 | resume_nvl = zfs_send_resume_token_to_nvlist(hdl, | |
1985 | resume_token); | |
1986 | if (resume_nvl == NULL) { | |
1987 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
1988 | goto out; | |
1989 | } | |
1990 | ||
1991 | if (nvlist_lookup_uint64(resume_nvl, "object", &obj) != 0 || | |
1992 | nvlist_lookup_uint64(resume_nvl, "offset", &off) != 0 || | |
1993 | nvlist_lookup_uint64(resume_nvl, "bytes", &bytes) != 0 || | |
1994 | nvlist_lookup_uint64(resume_nvl, "toguid", | |
1995 | &resume_guid) != 0) { | |
1996 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1997 | "provided resume token is corrupt")); | |
1998 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
1999 | goto out; | |
2000 | } | |
2001 | ||
2002 | if (nvlist_lookup_uint64(saved_nvl, "toguid", | |
2003 | &saved_guid)) { | |
2004 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2005 | "dataset's resume token is corrupt")); | |
2006 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
2007 | goto out; | |
2008 | } | |
2009 | ||
2010 | if (resume_guid != saved_guid) { | |
2011 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2012 | "provided resume token does not match dataset")); | |
2013 | ret = zfs_error(hdl, EZFS_BADBACKUP, errbuf); | |
2014 | goto out; | |
2015 | } | |
2016 | } | |
2017 | ||
2018 | (void) nvlist_remove_all(saved_nvl, "object"); | |
2019 | fnvlist_add_uint64(saved_nvl, "object", obj); | |
2020 | ||
2021 | (void) nvlist_remove_all(saved_nvl, "offset"); | |
2022 | fnvlist_add_uint64(saved_nvl, "offset", off); | |
2023 | ||
2024 | (void) nvlist_remove_all(saved_nvl, "bytes"); | |
2025 | fnvlist_add_uint64(saved_nvl, "bytes", bytes); | |
2026 | ||
2027 | (void) nvlist_remove_all(saved_nvl, "toname"); | |
2028 | fnvlist_add_string(saved_nvl, "toname", zhp->zfs_name); | |
2029 | ||
2030 | ret = zfs_send_resume_impl(hdl, flags, outfd, saved_nvl); | |
2031 | ||
2032 | out: | |
60a2434b RM |
2033 | fnvlist_free(saved_nvl); |
2034 | fnvlist_free(resume_nvl); | |
ba0ba69e TC |
2035 | return (ret); |
2036 | } | |
2037 | ||
34dc7c2f | 2038 | /* |
30af21b0 PD |
2039 | * This function informs the target system that the recursive send is complete. |
2040 | * The record is also expected in the case of a send -p. | |
2041 | */ | |
2042 | static int | |
2043 | send_conclusion_record(int fd, zio_cksum_t *zc) | |
2044 | { | |
2045 | dmu_replay_record_t drr = { 0 }; | |
2046 | drr.drr_type = DRR_END; | |
2047 | if (zc != NULL) | |
2048 | drr.drr_u.drr_end.drr_checksum = *zc; | |
2049 | if (write(fd, &drr, sizeof (drr)) == -1) { | |
2050 | return (errno); | |
2051 | } | |
2052 | return (0); | |
2053 | } | |
2054 | ||
2055 | /* | |
2056 | * This function is responsible for sending the records that contain the | |
2057 | * necessary information for the target system's libzfs to be able to set the | |
2058 | * properties of the filesystem being received, or to be able to prepare for | |
2059 | * a recursive receive. | |
2060 | * | |
2061 | * The "zhp" argument is the handle of the snapshot we are sending | |
2062 | * (the "tosnap"). The "from" argument is the short snapshot name (the part | |
2063 | * after the @) of the incremental source. | |
2064 | */ | |
2065 | static int | |
2066 | send_prelim_records(zfs_handle_t *zhp, const char *from, int fd, | |
2067 | boolean_t gather_props, boolean_t recursive, boolean_t verbose, | |
099fa7e4 PCG |
2068 | boolean_t dryrun, boolean_t raw, boolean_t replicate, boolean_t skipmissing, |
2069 | boolean_t backup, boolean_t holds, boolean_t props, boolean_t doall, | |
30af21b0 PD |
2070 | nvlist_t **fssp, avl_tree_t **fsavlp) |
2071 | { | |
2072 | int err = 0; | |
2073 | char *packbuf = NULL; | |
2074 | size_t buflen = 0; | |
2075 | zio_cksum_t zc = { {0} }; | |
2076 | int featureflags = 0; | |
2077 | /* name of filesystem/volume that contains snapshot we are sending */ | |
2078 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; | |
2079 | /* short name of snap we are sending */ | |
2080 | char *tosnap = ""; | |
2081 | ||
2082 | char errbuf[1024]; | |
2083 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
2084 | "warning: cannot send '%s'"), zhp->zfs_name); | |
2085 | if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && zfs_prop_get_int(zhp, | |
2086 | ZFS_PROP_VERSION) >= ZPL_VERSION_SA) { | |
2087 | featureflags |= DMU_BACKUP_FEATURE_SA_SPILL; | |
2088 | } | |
2089 | ||
2090 | if (holds) | |
2091 | featureflags |= DMU_BACKUP_FEATURE_HOLDS; | |
2092 | ||
2093 | (void) strlcpy(tofs, zhp->zfs_name, ZFS_MAX_DATASET_NAME_LEN); | |
2094 | char *at = strchr(tofs, '@'); | |
2095 | if (at != NULL) { | |
2096 | *at = '\0'; | |
2097 | tosnap = at + 1; | |
2098 | } | |
2099 | ||
2100 | if (gather_props) { | |
2101 | nvlist_t *hdrnv = fnvlist_alloc(); | |
2102 | nvlist_t *fss = NULL; | |
2103 | ||
2104 | if (from != NULL) | |
2105 | fnvlist_add_string(hdrnv, "fromsnap", from); | |
2106 | fnvlist_add_string(hdrnv, "tosnap", tosnap); | |
2107 | if (!recursive) | |
2108 | fnvlist_add_boolean(hdrnv, "not_recursive"); | |
2109 | ||
2110 | if (raw) { | |
60a2434b | 2111 | fnvlist_add_boolean(hdrnv, "raw"); |
30af21b0 PD |
2112 | } |
2113 | ||
2114 | if ((err = gather_nvlist(zhp->zfs_hdl, tofs, | |
099fa7e4 PCG |
2115 | from, tosnap, recursive, raw, doall, replicate, skipmissing, |
2116 | verbose, backup, holds, props, &fss, fsavlp)) != 0) { | |
30af21b0 PD |
2117 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, |
2118 | errbuf)); | |
2119 | } | |
7a6c12fd AJ |
2120 | /* |
2121 | * Do not allow the size of the properties list to exceed | |
2122 | * the limit | |
2123 | */ | |
2124 | if ((fnvlist_size(fss) + fnvlist_size(hdrnv)) > | |
2125 | zhp->zfs_hdl->libzfs_max_nvlist) { | |
2126 | (void) snprintf(errbuf, sizeof (errbuf), | |
2127 | dgettext(TEXT_DOMAIN, "warning: cannot send '%s': " | |
2128 | "the size of the list of snapshots and properties " | |
2129 | "is too large to be received successfully.\n" | |
2130 | "Select a smaller number of snapshots to send.\n"), | |
2131 | zhp->zfs_name); | |
2132 | return (zfs_error(zhp->zfs_hdl, EZFS_NOSPC, | |
2133 | errbuf)); | |
2134 | } | |
30af21b0 PD |
2135 | fnvlist_add_nvlist(hdrnv, "fss", fss); |
2136 | VERIFY0(nvlist_pack(hdrnv, &packbuf, &buflen, NV_ENCODE_XDR, | |
2137 | 0)); | |
2138 | if (fssp != NULL) { | |
2139 | *fssp = fss; | |
2140 | } else { | |
60a2434b | 2141 | fnvlist_free(fss); |
30af21b0 | 2142 | } |
60a2434b | 2143 | fnvlist_free(hdrnv); |
30af21b0 PD |
2144 | } |
2145 | ||
2146 | if (!dryrun) { | |
2147 | dmu_replay_record_t drr = { 0 }; | |
2148 | /* write first begin record */ | |
2149 | drr.drr_type = DRR_BEGIN; | |
2150 | drr.drr_u.drr_begin.drr_magic = DMU_BACKUP_MAGIC; | |
2151 | DMU_SET_STREAM_HDRTYPE(drr.drr_u.drr_begin. | |
2152 | drr_versioninfo, DMU_COMPOUNDSTREAM); | |
2153 | DMU_SET_FEATUREFLAGS(drr.drr_u.drr_begin. | |
2154 | drr_versioninfo, featureflags); | |
2155 | if (snprintf(drr.drr_u.drr_begin.drr_toname, | |
2156 | sizeof (drr.drr_u.drr_begin.drr_toname), "%s@%s", tofs, | |
2157 | tosnap) >= sizeof (drr.drr_u.drr_begin.drr_toname)) { | |
2158 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, | |
2159 | errbuf)); | |
2160 | } | |
2161 | drr.drr_payloadlen = buflen; | |
2162 | ||
2163 | err = dump_record(&drr, packbuf, buflen, &zc, fd); | |
2164 | free(packbuf); | |
2165 | if (err != 0) { | |
f00f4690 | 2166 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err)); |
30af21b0 PD |
2167 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, |
2168 | errbuf)); | |
2169 | } | |
2170 | err = send_conclusion_record(fd, &zc); | |
2171 | if (err != 0) { | |
f00f4690 | 2172 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err)); |
30af21b0 PD |
2173 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, |
2174 | errbuf)); | |
2175 | } | |
2176 | } | |
2177 | return (0); | |
2178 | } | |
2179 | ||
2180 | /* | |
2181 | * Generate a send stream. The "zhp" argument is the filesystem/volume | |
2182 | * that contains the snapshot to send. The "fromsnap" argument is the | |
2183 | * short name (the part after the '@') of the snapshot that is the | |
2184 | * incremental source to send from (if non-NULL). The "tosnap" argument | |
2185 | * is the short name of the snapshot to send. | |
45d1cae3 BB |
2186 | * |
2187 | * The content of the send stream is the snapshot identified by | |
2188 | * 'tosnap'. Incremental streams are requested in two ways: | |
2189 | * - from the snapshot identified by "fromsnap" (if non-null) or | |
2190 | * - from the origin of the dataset identified by zhp, which must | |
2191 | * be a clone. In this case, "fromsnap" is null and "fromorigin" | |
2192 | * is TRUE. | |
2193 | * | |
2194 | * The send stream is recursive (i.e. dumps a hierarchy of snapshots) and | |
428870ff | 2195 | * uses a special header (with a hdrtype field of DMU_COMPOUNDSTREAM) |
45d1cae3 | 2196 | * if "replicate" is set. If "doall" is set, dump all the intermediate |
428870ff BB |
2197 | * snapshots. The DMU_COMPOUNDSTREAM header is used in the "doall" |
2198 | * case too. If "props" is set, send properties. | |
3a909fe3 AZ |
2199 | * |
2200 | * Pre-wrapped (cf. lzc_send_wrapper()). | |
34dc7c2f | 2201 | */ |
3a909fe3 AZ |
2202 | static int |
2203 | zfs_send_cb_impl(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, | |
330d06f9 | 2204 | sendflags_t *flags, int outfd, snapfilter_cb_t filter_func, |
428870ff | 2205 | void *cb_arg, nvlist_t **debugnvp) |
34dc7c2f BB |
2206 | { |
2207 | char errbuf[1024]; | |
2208 | send_dump_data_t sdd = { 0 }; | |
330d06f9 | 2209 | int err = 0; |
34dc7c2f BB |
2210 | nvlist_t *fss = NULL; |
2211 | avl_tree_t *fsavl = NULL; | |
428870ff BB |
2212 | static uint64_t holdseq; |
2213 | int spa_version; | |
93f6d7e2 | 2214 | FILE *fout; |
428870ff | 2215 | |
34dc7c2f BB |
2216 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
2217 | "cannot send '%s'"), zhp->zfs_name); | |
2218 | ||
2219 | if (fromsnap && fromsnap[0] == '\0') { | |
2220 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
2221 | "zero-length incremental source")); | |
2222 | return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); | |
2223 | } | |
2224 | ||
aad91df0 RE |
2225 | if (fromsnap) { |
2226 | char full_fromsnap_name[ZFS_MAX_DATASET_NAME_LEN]; | |
2227 | if (snprintf(full_fromsnap_name, sizeof (full_fromsnap_name), | |
2228 | "%s@%s", zhp->zfs_name, fromsnap) >= | |
2229 | sizeof (full_fromsnap_name)) { | |
2230 | err = EINVAL; | |
2231 | goto stderr_out; | |
2232 | } | |
2233 | zfs_handle_t *fromsnapn = zfs_open(zhp->zfs_hdl, | |
2234 | full_fromsnap_name, ZFS_TYPE_SNAPSHOT); | |
2235 | if (fromsnapn == NULL) { | |
2236 | err = -1; | |
2237 | goto err_out; | |
2238 | } | |
2239 | zfs_close(fromsnapn); | |
2240 | } | |
2241 | ||
9c5e88b1 PZ |
2242 | if (flags->replicate || flags->doall || flags->props || |
2243 | flags->holds || flags->backup) { | |
30af21b0 PD |
2244 | char full_tosnap_name[ZFS_MAX_DATASET_NAME_LEN]; |
2245 | if (snprintf(full_tosnap_name, sizeof (full_tosnap_name), | |
2246 | "%s@%s", zhp->zfs_name, tosnap) >= | |
2247 | sizeof (full_tosnap_name)) { | |
2248 | err = EINVAL; | |
2249 | goto stderr_out; | |
34dc7c2f | 2250 | } |
30af21b0 PD |
2251 | zfs_handle_t *tosnap = zfs_open(zhp->zfs_hdl, |
2252 | full_tosnap_name, ZFS_TYPE_SNAPSHOT); | |
1d20b763 | 2253 | if (tosnap == NULL) { |
2254 | err = -1; | |
2255 | goto err_out; | |
2256 | } | |
30af21b0 PD |
2257 | err = send_prelim_records(tosnap, fromsnap, outfd, |
2258 | flags->replicate || flags->props || flags->holds, | |
2259 | flags->replicate, flags->verbosity > 0, flags->dryrun, | |
099fa7e4 PCG |
2260 | flags->raw, flags->replicate, flags->skipmissing, |
2261 | flags->backup, flags->holds, flags->props, flags->doall, | |
2262 | &fss, &fsavl); | |
30af21b0 PD |
2263 | zfs_close(tosnap); |
2264 | if (err != 0) | |
2265 | goto err_out; | |
34dc7c2f BB |
2266 | } |
2267 | ||
2268 | /* dump each stream */ | |
2269 | sdd.fromsnap = fromsnap; | |
2270 | sdd.tosnap = tosnap; | |
36482bf6 | 2271 | sdd.outfd = outfd; |
330d06f9 MA |
2272 | sdd.replicate = flags->replicate; |
2273 | sdd.doall = flags->doall; | |
2274 | sdd.fromorigin = flags->fromorigin; | |
34dc7c2f BB |
2275 | sdd.fss = fss; |
2276 | sdd.fsavl = fsavl; | |
30af21b0 | 2277 | sdd.verbosity = flags->verbosity; |
330d06f9 | 2278 | sdd.parsable = flags->parsable; |
37abac6d | 2279 | sdd.progress = flags->progress; |
330d06f9 | 2280 | sdd.dryrun = flags->dryrun; |
f1512ee6 | 2281 | sdd.large_block = flags->largeblock; |
9b67f605 | 2282 | sdd.embed_data = flags->embed_data; |
2aa34383 | 2283 | sdd.compress = flags->compress; |
b5256303 | 2284 | sdd.raw = flags->raw; |
9c5e88b1 | 2285 | sdd.holds = flags->holds; |
428870ff BB |
2286 | sdd.filter_cb = filter_func; |
2287 | sdd.filter_cb_arg = cb_arg; | |
2288 | if (debugnvp) | |
2289 | sdd.debugnv = *debugnvp; | |
30af21b0 | 2290 | if (sdd.verbosity != 0 && sdd.dryrun) |
93f6d7e2 MJ |
2291 | sdd.std_out = B_TRUE; |
2292 | fout = sdd.std_out ? stdout : stderr; | |
e956d651 CS |
2293 | |
2294 | /* | |
2295 | * Some flags require that we place user holds on the datasets that are | |
2296 | * being sent so they don't get destroyed during the send. We can skip | |
2297 | * this step if the pool is imported read-only since the datasets cannot | |
2298 | * be destroyed. | |
2299 | */ | |
2300 | if (!flags->dryrun && !zpool_get_prop_int(zfs_get_pool_handle(zhp), | |
2301 | ZPOOL_PROP_READONLY, NULL) && | |
2302 | zfs_spa_version(zhp, &spa_version) == 0 && | |
2303 | spa_version >= SPA_VERSION_USERREFS && | |
2304 | (flags->doall || flags->replicate)) { | |
572e2857 BB |
2305 | ++holdseq; |
2306 | (void) snprintf(sdd.holdtag, sizeof (sdd.holdtag), | |
2307 | ".send-%d-%llu", getpid(), (u_longlong_t)holdseq); | |
10b575d0 | 2308 | sdd.cleanup_fd = open(ZFS_DEV, O_RDWR | O_CLOEXEC); |
572e2857 BB |
2309 | if (sdd.cleanup_fd < 0) { |
2310 | err = errno; | |
2311 | goto stderr_out; | |
2312 | } | |
95fd54a1 | 2313 | sdd.snapholds = fnvlist_alloc(); |
572e2857 BB |
2314 | } else { |
2315 | sdd.cleanup_fd = -1; | |
95fd54a1 | 2316 | sdd.snapholds = NULL; |
572e2857 | 2317 | } |
9c5e88b1 | 2318 | |
30af21b0 | 2319 | if (flags->verbosity != 0 || sdd.snapholds != NULL) { |
330d06f9 MA |
2320 | /* |
2321 | * Do a verbose no-op dry run to get all the verbose output | |
95fd54a1 SH |
2322 | * or to gather snapshot hold's before generating any data, |
2323 | * then do a non-verbose real run to generate the streams. | |
330d06f9 MA |
2324 | */ |
2325 | sdd.dryrun = B_TRUE; | |
2326 | err = dump_filesystems(zhp, &sdd); | |
95fd54a1 SH |
2327 | |
2328 | if (err != 0) | |
2329 | goto stderr_out; | |
2330 | ||
30af21b0 | 2331 | if (flags->verbosity != 0) { |
95fd54a1 | 2332 | if (flags->parsable) { |
93f6d7e2 | 2333 | (void) fprintf(fout, "size\t%llu\n", |
95fd54a1 SH |
2334 | (longlong_t)sdd.size); |
2335 | } else { | |
2336 | char buf[16]; | |
e7fbeb60 | 2337 | zfs_nicebytes(sdd.size, buf, sizeof (buf)); |
93f6d7e2 | 2338 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
95fd54a1 SH |
2339 | "total estimated size is %s\n"), buf); |
2340 | } | |
330d06f9 | 2341 | } |
95fd54a1 SH |
2342 | |
2343 | /* Ensure no snaps found is treated as an error. */ | |
2344 | if (!sdd.seento) { | |
2345 | err = ENOENT; | |
2346 | goto err_out; | |
2347 | } | |
2348 | ||
2349 | /* Skip the second run if dryrun was requested. */ | |
2350 | if (flags->dryrun) | |
2351 | goto err_out; | |
2352 | ||
2353 | if (sdd.snapholds != NULL) { | |
2354 | err = zfs_hold_nvl(zhp, sdd.cleanup_fd, sdd.snapholds); | |
2355 | if (err != 0) | |
2356 | goto stderr_out; | |
2357 | ||
2358 | fnvlist_free(sdd.snapholds); | |
2359 | sdd.snapholds = NULL; | |
2360 | } | |
2361 | ||
2362 | sdd.dryrun = B_FALSE; | |
30af21b0 | 2363 | sdd.verbosity = 0; |
330d06f9 | 2364 | } |
95fd54a1 | 2365 | |
34dc7c2f BB |
2366 | err = dump_filesystems(zhp, &sdd); |
2367 | fsavl_destroy(fsavl); | |
60a2434b | 2368 | fnvlist_free(fss); |
34dc7c2f | 2369 | |
95fd54a1 SH |
2370 | /* Ensure no snaps found is treated as an error. */ |
2371 | if (err == 0 && !sdd.seento) | |
2372 | err = ENOENT; | |
2373 | ||
572e2857 BB |
2374 | if (sdd.cleanup_fd != -1) { |
2375 | VERIFY(0 == close(sdd.cleanup_fd)); | |
2376 | sdd.cleanup_fd = -1; | |
2377 | } | |
2378 | ||
330d06f9 | 2379 | if (!flags->dryrun && (flags->replicate || flags->doall || |
9c5e88b1 | 2380 | flags->props || flags->backup || flags->holds)) { |
34dc7c2f BB |
2381 | /* |
2382 | * write final end record. NB: want to do this even if | |
2383 | * there was some error, because it might not be totally | |
2384 | * failed. | |
2385 | */ | |
30af21b0 PD |
2386 | err = send_conclusion_record(outfd, NULL); |
2387 | if (err != 0) | |
2388 | return (zfs_standard_error(zhp->zfs_hdl, err, errbuf)); | |
34dc7c2f BB |
2389 | } |
2390 | ||
2391 | return (err || sdd.err); | |
428870ff BB |
2392 | |
2393 | stderr_out: | |
2394 | err = zfs_standard_error(zhp->zfs_hdl, err, errbuf); | |
2395 | err_out: | |
95fd54a1 | 2396 | fsavl_destroy(fsavl); |
60a2434b | 2397 | fnvlist_free(fss); |
95fd54a1 SH |
2398 | fnvlist_free(sdd.snapholds); |
2399 | ||
572e2857 BB |
2400 | if (sdd.cleanup_fd != -1) |
2401 | VERIFY(0 == close(sdd.cleanup_fd)); | |
428870ff | 2402 | return (err); |
34dc7c2f BB |
2403 | } |
2404 | ||
3a909fe3 AZ |
2405 | struct zfs_send { |
2406 | zfs_handle_t *zhp; | |
2407 | const char *fromsnap; | |
2408 | const char *tosnap; | |
2409 | sendflags_t *flags; | |
2410 | snapfilter_cb_t *filter_func; | |
2411 | void *cb_arg; | |
2412 | nvlist_t **debugnvp; | |
2413 | }; | |
2414 | ||
2415 | static int | |
2416 | zfs_send_cb(int outfd, void *arg) | |
2417 | { | |
2418 | struct zfs_send *zs = arg; | |
2419 | return (zfs_send_cb_impl(zs->zhp, zs->fromsnap, zs->tosnap, zs->flags, | |
2420 | outfd, zs->filter_func, zs->cb_arg, zs->debugnvp)); | |
2421 | } | |
2422 | ||
2423 | int | |
2424 | zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, | |
2425 | sendflags_t *flags, int outfd, snapfilter_cb_t filter_func, | |
2426 | void *cb_arg, nvlist_t **debugnvp) | |
2427 | { | |
2428 | struct zfs_send arg = { | |
2429 | .zhp = zhp, | |
2430 | .fromsnap = fromsnap, | |
2431 | .tosnap = tosnap, | |
2432 | .flags = flags, | |
2433 | .filter_func = filter_func, | |
2434 | .cb_arg = cb_arg, | |
2435 | .debugnvp = debugnvp, | |
2436 | }; | |
2437 | return (lzc_send_wrapper(zfs_send_cb, outfd, &arg)); | |
2438 | } | |
2439 | ||
2440 | ||
65c7cc49 | 2441 | static zfs_handle_t * |
30af21b0 PD |
2442 | name_to_dir_handle(libzfs_handle_t *hdl, const char *snapname) |
2443 | { | |
2444 | char dirname[ZFS_MAX_DATASET_NAME_LEN]; | |
2445 | (void) strlcpy(dirname, snapname, ZFS_MAX_DATASET_NAME_LEN); | |
2446 | char *c = strchr(dirname, '@'); | |
2447 | if (c != NULL) | |
2448 | *c = '\0'; | |
2449 | return (zfs_open(hdl, dirname, ZFS_TYPE_DATASET)); | |
2450 | } | |
2451 | ||
2452 | /* | |
2453 | * Returns B_TRUE if earlier is an earlier snapshot in later's timeline; either | |
2454 | * an earlier snapshot in the same filesystem, or a snapshot before later's | |
2455 | * origin, or it's origin's origin, etc. | |
2456 | */ | |
2457 | static boolean_t | |
2458 | snapshot_is_before(zfs_handle_t *earlier, zfs_handle_t *later) | |
2459 | { | |
2460 | boolean_t ret; | |
2461 | uint64_t later_txg = | |
2462 | (later->zfs_type == ZFS_TYPE_FILESYSTEM || | |
2463 | later->zfs_type == ZFS_TYPE_VOLUME ? | |
2464 | UINT64_MAX : zfs_prop_get_int(later, ZFS_PROP_CREATETXG)); | |
2465 | uint64_t earlier_txg = zfs_prop_get_int(earlier, ZFS_PROP_CREATETXG); | |
2466 | ||
2467 | if (earlier_txg >= later_txg) | |
2468 | return (B_FALSE); | |
2469 | ||
2470 | zfs_handle_t *earlier_dir = name_to_dir_handle(earlier->zfs_hdl, | |
2471 | earlier->zfs_name); | |
2472 | zfs_handle_t *later_dir = name_to_dir_handle(later->zfs_hdl, | |
2473 | later->zfs_name); | |
2474 | ||
2475 | if (strcmp(earlier_dir->zfs_name, later_dir->zfs_name) == 0) { | |
2476 | zfs_close(earlier_dir); | |
2477 | zfs_close(later_dir); | |
2478 | return (B_TRUE); | |
2479 | } | |
2480 | ||
2481 | char clonename[ZFS_MAX_DATASET_NAME_LEN]; | |
2482 | if (zfs_prop_get(later_dir, ZFS_PROP_ORIGIN, clonename, | |
2483 | ZFS_MAX_DATASET_NAME_LEN, NULL, NULL, 0, B_TRUE) != 0) { | |
2484 | zfs_close(earlier_dir); | |
2485 | zfs_close(later_dir); | |
2486 | return (B_FALSE); | |
2487 | } | |
2488 | ||
2489 | zfs_handle_t *origin = zfs_open(earlier->zfs_hdl, clonename, | |
2490 | ZFS_TYPE_DATASET); | |
2491 | uint64_t origin_txg = zfs_prop_get_int(origin, ZFS_PROP_CREATETXG); | |
2492 | ||
2493 | /* | |
2494 | * If "earlier" is exactly the origin, then | |
2495 | * snapshot_is_before(earlier, origin) will return false (because | |
2496 | * they're the same). | |
2497 | */ | |
2498 | if (origin_txg == earlier_txg && | |
2499 | strcmp(origin->zfs_name, earlier->zfs_name) == 0) { | |
2500 | zfs_close(earlier_dir); | |
2501 | zfs_close(later_dir); | |
2502 | zfs_close(origin); | |
2503 | return (B_TRUE); | |
2504 | } | |
2505 | zfs_close(earlier_dir); | |
2506 | zfs_close(later_dir); | |
2507 | ||
2508 | ret = snapshot_is_before(earlier, origin); | |
2509 | zfs_close(origin); | |
2510 | return (ret); | |
2511 | } | |
2512 | ||
2513 | /* | |
2514 | * The "zhp" argument is the handle of the dataset to send (typically a | |
2515 | * snapshot). The "from" argument is the full name of the snapshot or | |
2516 | * bookmark that is the incremental source. | |
3a909fe3 AZ |
2517 | * |
2518 | * Pre-wrapped (cf. lzc_send_wrapper()). | |
30af21b0 | 2519 | */ |
3a909fe3 AZ |
2520 | static int |
2521 | zfs_send_one_cb_impl(zfs_handle_t *zhp, const char *from, int fd, | |
2522 | sendflags_t *flags, const char *redactbook) | |
da536844 | 2523 | { |
30af21b0 | 2524 | int err; |
da536844 | 2525 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
22df2457 | 2526 | char *name = zhp->zfs_name; |
196bee4c | 2527 | pthread_t ptid; |
30af21b0 | 2528 | progress_arg_t pa = { 0 }; |
30af21b0 | 2529 | |
da536844 | 2530 | char errbuf[1024]; |
30af21b0 | 2531 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
22df2457 | 2532 | "warning: cannot send '%s'"), name); |
835db585 | 2533 | |
30af21b0 PD |
2534 | if (from != NULL && strchr(from, '@')) { |
2535 | zfs_handle_t *from_zhp = zfs_open(hdl, from, | |
2536 | ZFS_TYPE_DATASET); | |
1d20b763 | 2537 | if (from_zhp == NULL) |
2538 | return (-1); | |
30af21b0 PD |
2539 | if (!snapshot_is_before(from_zhp, zhp)) { |
2540 | zfs_close(from_zhp); | |
2541 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2542 | "not an earlier snapshot from the same fs")); | |
2543 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
2544 | } | |
2545 | zfs_close(from_zhp); | |
2546 | } | |
835db585 | 2547 | |
22df2457 RM |
2548 | if (redactbook != NULL) { |
2549 | char bookname[ZFS_MAX_DATASET_NAME_LEN]; | |
2550 | nvlist_t *redact_snaps; | |
2551 | zfs_handle_t *book_zhp; | |
2552 | char *at, *pound; | |
2553 | int dsnamelen; | |
2554 | ||
2555 | pound = strchr(redactbook, '#'); | |
2556 | if (pound != NULL) | |
2557 | redactbook = pound + 1; | |
2558 | at = strchr(name, '@'); | |
2559 | if (at == NULL) { | |
2560 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2561 | "cannot do a redacted send to a filesystem")); | |
2562 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
2563 | } | |
2564 | dsnamelen = at - name; | |
2565 | if (snprintf(bookname, sizeof (bookname), "%.*s#%s", | |
2566 | dsnamelen, name, redactbook) | |
2567 | >= sizeof (bookname)) { | |
2568 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2569 | "invalid bookmark name")); | |
2570 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
2571 | } | |
2572 | book_zhp = zfs_open(hdl, bookname, ZFS_TYPE_BOOKMARK); | |
2573 | if (book_zhp == NULL) | |
2574 | return (-1); | |
2575 | if (nvlist_lookup_nvlist(book_zhp->zfs_props, | |
2576 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS), | |
2577 | &redact_snaps) != 0 || redact_snaps == NULL) { | |
2578 | zfs_close(book_zhp); | |
2579 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2580 | "not a redaction bookmark")); | |
2581 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
2582 | } | |
2583 | zfs_close(book_zhp); | |
2584 | } | |
2585 | ||
30af21b0 PD |
2586 | /* |
2587 | * Send fs properties | |
2588 | */ | |
2589 | if (flags->props || flags->holds || flags->backup) { | |
2590 | /* | |
2591 | * Note: the header generated by send_prelim_records() | |
2592 | * assumes that the incremental source is in the same | |
2593 | * filesystem/volume as the target (which is a requirement | |
2594 | * when doing "zfs send -R"). But that isn't always the | |
2595 | * case here (e.g. send from snap in origin, or send from | |
2596 | * bookmark). We pass from=NULL, which will omit this | |
2597 | * information from the prelim records; it isn't used | |
2598 | * when receiving this type of stream. | |
2599 | */ | |
2600 | err = send_prelim_records(zhp, NULL, fd, B_TRUE, B_FALSE, | |
2601 | flags->verbosity > 0, flags->dryrun, flags->raw, | |
099fa7e4 | 2602 | flags->replicate, B_FALSE, flags->backup, flags->holds, |
30af21b0 PD |
2603 | flags->props, flags->doall, NULL, NULL); |
2604 | if (err != 0) | |
2605 | return (err); | |
2606 | } | |
2607 | ||
2608 | /* | |
2609 | * Perform size estimate if verbose was specified. | |
2610 | */ | |
2611 | if (flags->verbosity != 0) { | |
2612 | err = estimate_size(zhp, from, fd, flags, 0, 0, 0, redactbook, | |
2613 | errbuf); | |
2614 | if (err != 0) | |
2615 | return (err); | |
2616 | } | |
2617 | ||
2618 | if (flags->dryrun) | |
2619 | return (0); | |
2620 | ||
30af21b0 PD |
2621 | /* |
2622 | * If progress reporting is requested, spawn a new thread to poll | |
2623 | * ZFS_IOC_SEND_PROGRESS at a regular interval. | |
2624 | */ | |
2625 | if (flags->progress) { | |
2626 | pa.pa_zhp = zhp; | |
2627 | pa.pa_fd = fd; | |
2628 | pa.pa_parsable = flags->parsable; | |
2629 | pa.pa_estimate = B_FALSE; | |
2630 | pa.pa_verbosity = flags->verbosity; | |
2631 | ||
2632 | err = pthread_create(&ptid, NULL, | |
2633 | send_progress_thread, &pa); | |
2634 | if (err != 0) { | |
f00f4690 | 2635 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno)); |
30af21b0 PD |
2636 | return (zfs_error(zhp->zfs_hdl, |
2637 | EZFS_THREADCREATEFAILED, errbuf)); | |
835db585 | 2638 | } |
2639 | } | |
2640 | ||
22df2457 | 2641 | err = lzc_send_redacted(name, from, fd, |
30af21b0 | 2642 | lzc_flags_from_sendflags(flags), redactbook); |
835db585 | 2643 | |
30af21b0 PD |
2644 | if (flags->progress) { |
2645 | void *status = NULL; | |
2646 | if (err != 0) | |
2647 | (void) pthread_cancel(ptid); | |
2648 | (void) pthread_join(ptid, &status); | |
2649 | int error = (int)(uintptr_t)status; | |
f00f4690 AZ |
2650 | if (error != 0 && status != PTHREAD_CANCELED) |
2651 | return (zfs_standard_error_fmt(hdl, error, | |
2652 | dgettext(TEXT_DOMAIN, | |
2653 | "progress thread exited nonzero"))); | |
30af21b0 | 2654 | } |
da536844 | 2655 | |
8623bd96 | 2656 | if (err == 0 && (flags->props || flags->holds || flags->backup)) { |
30af21b0 | 2657 | /* Write the final end record. */ |
c14ad80f | 2658 | err = send_conclusion_record(fd, NULL); |
30af21b0 PD |
2659 | if (err != 0) |
2660 | return (zfs_standard_error(hdl, err, errbuf)); | |
2661 | } | |
da536844 MA |
2662 | if (err != 0) { |
2663 | switch (errno) { | |
2664 | case EXDEV: | |
2665 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2666 | "not an earlier snapshot from the same fs")); | |
2667 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
2668 | ||
2669 | case ENOENT: | |
2670 | case ESRCH: | |
22df2457 | 2671 | if (lzc_exists(name)) { |
da536844 MA |
2672 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
2673 | "incremental source (%s) does not exist"), | |
2674 | from); | |
2675 | } | |
2676 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2677 | ||
b5256303 TC |
2678 | case EACCES: |
2679 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2680 | "dataset key must be loaded")); | |
2681 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
2682 | ||
da536844 MA |
2683 | case EBUSY: |
2684 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2685 | "target is busy; if a filesystem, " | |
2686 | "it must not be mounted")); | |
2687 | return (zfs_error(hdl, EZFS_BUSY, errbuf)); | |
2688 | ||
2689 | case EDQUOT: | |
22df2457 | 2690 | case EFAULT: |
da536844 | 2691 | case EFBIG: |
22df2457 | 2692 | case EINVAL: |
da536844 MA |
2693 | case EIO: |
2694 | case ENOLINK: | |
2695 | case ENOSPC: | |
2696 | case ENOSTR: | |
2697 | case ENXIO: | |
2698 | case EPIPE: | |
2699 | case ERANGE: | |
da536844 | 2700 | case EROFS: |
f00f4690 | 2701 | zfs_error_aux(hdl, "%s", strerror(errno)); |
da536844 MA |
2702 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); |
2703 | ||
2704 | default: | |
2705 | return (zfs_standard_error(hdl, errno, errbuf)); | |
2706 | } | |
2707 | } | |
2708 | return (err != 0); | |
2709 | } | |
2710 | ||
3a909fe3 AZ |
2711 | struct zfs_send_one { |
2712 | zfs_handle_t *zhp; | |
2713 | const char *from; | |
2714 | sendflags_t *flags; | |
2715 | const char *redactbook; | |
2716 | }; | |
2717 | ||
2718 | static int | |
2719 | zfs_send_one_cb(int fd, void *arg) | |
2720 | { | |
2721 | struct zfs_send_one *zso = arg; | |
2722 | return (zfs_send_one_cb_impl(zso->zhp, zso->from, fd, zso->flags, | |
2723 | zso->redactbook)); | |
2724 | } | |
2725 | ||
2726 | int | |
2727 | zfs_send_one(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags, | |
2728 | const char *redactbook) | |
2729 | { | |
2730 | struct zfs_send_one zso = { | |
2731 | .zhp = zhp, | |
2732 | .from = from, | |
2733 | .flags = flags, | |
2734 | .redactbook = redactbook, | |
2735 | }; | |
2736 | return (lzc_send_wrapper(zfs_send_one_cb, fd, &zso)); | |
2737 | } | |
2738 | ||
34dc7c2f BB |
2739 | /* |
2740 | * Routines specific to "zfs recv" | |
2741 | */ | |
2742 | ||
2743 | static int | |
2744 | recv_read(libzfs_handle_t *hdl, int fd, void *buf, int ilen, | |
2745 | boolean_t byteswap, zio_cksum_t *zc) | |
2746 | { | |
2747 | char *cp = buf; | |
2748 | int rv; | |
2749 | int len = ilen; | |
2750 | ||
2751 | do { | |
2752 | rv = read(fd, cp, len); | |
2753 | cp += rv; | |
2754 | len -= rv; | |
2755 | } while (rv > 0); | |
2756 | ||
2757 | if (rv < 0 || len != 0) { | |
2758 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2759 | "failed to read from stream")); | |
2760 | return (zfs_error(hdl, EZFS_BADSTREAM, dgettext(TEXT_DOMAIN, | |
2761 | "cannot receive"))); | |
2762 | } | |
2763 | ||
2764 | if (zc) { | |
2765 | if (byteswap) | |
2766 | fletcher_4_incremental_byteswap(buf, ilen, zc); | |
2767 | else | |
2768 | fletcher_4_incremental_native(buf, ilen, zc); | |
2769 | } | |
2770 | return (0); | |
2771 | } | |
2772 | ||
2773 | static int | |
2774 | recv_read_nvlist(libzfs_handle_t *hdl, int fd, int len, nvlist_t **nvp, | |
2775 | boolean_t byteswap, zio_cksum_t *zc) | |
2776 | { | |
2777 | char *buf; | |
2778 | int err; | |
2779 | ||
2780 | buf = zfs_alloc(hdl, len); | |
2781 | if (buf == NULL) | |
2782 | return (ENOMEM); | |
2783 | ||
7a6c12fd AJ |
2784 | if (len > hdl->libzfs_max_nvlist) { |
2785 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "nvlist too large")); | |
908d43d0 | 2786 | free(buf); |
7a6c12fd AJ |
2787 | return (ENOMEM); |
2788 | } | |
2789 | ||
34dc7c2f BB |
2790 | err = recv_read(hdl, fd, buf, len, byteswap, zc); |
2791 | if (err != 0) { | |
2792 | free(buf); | |
2793 | return (err); | |
2794 | } | |
2795 | ||
2796 | err = nvlist_unpack(buf, len, nvp, 0); | |
2797 | free(buf); | |
2798 | if (err != 0) { | |
2799 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
2800 | "stream (malformed nvlist)")); | |
2801 | return (EINVAL); | |
2802 | } | |
2803 | return (0); | |
2804 | } | |
2805 | ||
b5256303 TC |
2806 | /* |
2807 | * Returns the grand origin (origin of origin of origin...) of a given handle. | |
2808 | * If this dataset is not a clone, it simply returns a copy of the original | |
2809 | * handle. | |
2810 | */ | |
2811 | static zfs_handle_t * | |
2812 | recv_open_grand_origin(zfs_handle_t *zhp) | |
2813 | { | |
2814 | char origin[ZFS_MAX_DATASET_NAME_LEN]; | |
610cb4fb | 2815 | zprop_source_t src; |
b5256303 TC |
2816 | zfs_handle_t *ozhp = zfs_handle_dup(zhp); |
2817 | ||
2818 | while (ozhp != NULL) { | |
2819 | if (zfs_prop_get(ozhp, ZFS_PROP_ORIGIN, origin, | |
2820 | sizeof (origin), &src, NULL, 0, B_FALSE) != 0) | |
2821 | break; | |
2822 | ||
2823 | (void) zfs_close(ozhp); | |
2824 | ozhp = zfs_open(zhp->zfs_hdl, origin, ZFS_TYPE_FILESYSTEM); | |
2825 | } | |
2826 | ||
2827 | return (ozhp); | |
2828 | } | |
2829 | ||
2830 | static int | |
dc1c630b | 2831 | recv_rename_impl(zfs_handle_t *zhp, const char *name, const char *newname) |
b5256303 TC |
2832 | { |
2833 | int err; | |
2834 | zfs_handle_t *ozhp = NULL; | |
2835 | ||
2836 | /* | |
2837 | * Attempt to rename the dataset. If it fails with EACCES we have | |
2838 | * attempted to rename the dataset outside of its encryption root. | |
2839 | * Force the dataset to become an encryption root and try again. | |
2840 | */ | |
dc1c630b | 2841 | err = lzc_rename(name, newname); |
b5256303 TC |
2842 | if (err == EACCES) { |
2843 | ozhp = recv_open_grand_origin(zhp); | |
2844 | if (ozhp == NULL) { | |
2845 | err = ENOENT; | |
2846 | goto out; | |
2847 | } | |
2848 | ||
2849 | err = lzc_change_key(ozhp->zfs_name, DCP_CMD_FORCE_NEW_KEY, | |
2850 | NULL, NULL, 0); | |
2851 | if (err != 0) | |
2852 | goto out; | |
2853 | ||
dc1c630b | 2854 | err = lzc_rename(name, newname); |
b5256303 TC |
2855 | } |
2856 | ||
2857 | out: | |
2858 | if (ozhp != NULL) | |
2859 | zfs_close(ozhp); | |
2860 | return (err); | |
2861 | } | |
2862 | ||
34dc7c2f BB |
2863 | static int |
2864 | recv_rename(libzfs_handle_t *hdl, const char *name, const char *tryname, | |
330d06f9 | 2865 | int baselen, char *newname, recvflags_t *flags) |
34dc7c2f BB |
2866 | { |
2867 | static int seq; | |
34dc7c2f | 2868 | int err; |
b5256303 TC |
2869 | prop_changelist_t *clp = NULL; |
2870 | zfs_handle_t *zhp = NULL; | |
34dc7c2f BB |
2871 | |
2872 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); | |
b5256303 TC |
2873 | if (zhp == NULL) { |
2874 | err = -1; | |
2875 | goto out; | |
2876 | } | |
b128c09f | 2877 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
330d06f9 | 2878 | flags->force ? MS_FORCE : 0); |
b5256303 TC |
2879 | if (clp == NULL) { |
2880 | err = -1; | |
2881 | goto out; | |
2882 | } | |
34dc7c2f BB |
2883 | err = changelist_prefix(clp); |
2884 | if (err) | |
b5256303 | 2885 | goto out; |
34dc7c2f BB |
2886 | |
2887 | if (tryname) { | |
2888 | (void) strcpy(newname, tryname); | |
330d06f9 | 2889 | if (flags->verbose) { |
34dc7c2f | 2890 | (void) printf("attempting rename %s to %s\n", |
dc1c630b | 2891 | name, newname); |
34dc7c2f | 2892 | } |
dc1c630b | 2893 | err = recv_rename_impl(zhp, name, newname); |
34dc7c2f BB |
2894 | if (err == 0) |
2895 | changelist_rename(clp, name, tryname); | |
2896 | } else { | |
2897 | err = ENOENT; | |
2898 | } | |
2899 | ||
13fe0198 | 2900 | if (err != 0 && strncmp(name + baselen, "recv-", 5) != 0) { |
34dc7c2f BB |
2901 | seq++; |
2902 | ||
eca7b760 IK |
2903 | (void) snprintf(newname, ZFS_MAX_DATASET_NAME_LEN, |
2904 | "%.*srecv-%u-%u", baselen, name, getpid(), seq); | |
34dc7c2f | 2905 | |
330d06f9 | 2906 | if (flags->verbose) { |
34dc7c2f | 2907 | (void) printf("failed - trying rename %s to %s\n", |
dc1c630b | 2908 | name, newname); |
34dc7c2f | 2909 | } |
dc1c630b | 2910 | err = recv_rename_impl(zhp, name, newname); |
34dc7c2f BB |
2911 | if (err == 0) |
2912 | changelist_rename(clp, name, newname); | |
330d06f9 | 2913 | if (err && flags->verbose) { |
34dc7c2f BB |
2914 | (void) printf("failed (%u) - " |
2915 | "will try again on next pass\n", errno); | |
2916 | } | |
2917 | err = EAGAIN; | |
330d06f9 | 2918 | } else if (flags->verbose) { |
34dc7c2f BB |
2919 | if (err == 0) |
2920 | (void) printf("success\n"); | |
2921 | else | |
2922 | (void) printf("failed (%u)\n", errno); | |
2923 | } | |
2924 | ||
2925 | (void) changelist_postfix(clp); | |
b5256303 TC |
2926 | |
2927 | out: | |
2928 | if (clp != NULL) | |
2929 | changelist_free(clp); | |
2930 | if (zhp != NULL) | |
2931 | zfs_close(zhp); | |
2932 | ||
2933 | return (err); | |
2934 | } | |
2935 | ||
2936 | static int | |
2937 | recv_promote(libzfs_handle_t *hdl, const char *fsname, | |
2938 | const char *origin_fsname, recvflags_t *flags) | |
2939 | { | |
2940 | int err; | |
2941 | zfs_cmd_t zc = {"\0"}; | |
2942 | zfs_handle_t *zhp = NULL, *ozhp = NULL; | |
2943 | ||
2944 | if (flags->verbose) | |
2945 | (void) printf("promoting %s\n", fsname); | |
2946 | ||
2947 | (void) strlcpy(zc.zc_value, origin_fsname, sizeof (zc.zc_value)); | |
2948 | (void) strlcpy(zc.zc_name, fsname, sizeof (zc.zc_name)); | |
2949 | ||
2950 | /* | |
2951 | * Attempt to promote the dataset. If it fails with EACCES the | |
2952 | * promotion would cause this dataset to leave its encryption root. | |
2953 | * Force the origin to become an encryption root and try again. | |
2954 | */ | |
2955 | err = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); | |
2956 | if (err == EACCES) { | |
2957 | zhp = zfs_open(hdl, fsname, ZFS_TYPE_DATASET); | |
2958 | if (zhp == NULL) { | |
2959 | err = -1; | |
2960 | goto out; | |
2961 | } | |
2962 | ||
2963 | ozhp = recv_open_grand_origin(zhp); | |
2964 | if (ozhp == NULL) { | |
2965 | err = -1; | |
2966 | goto out; | |
2967 | } | |
2968 | ||
2969 | err = lzc_change_key(ozhp->zfs_name, DCP_CMD_FORCE_NEW_KEY, | |
2970 | NULL, NULL, 0); | |
2971 | if (err != 0) | |
2972 | goto out; | |
2973 | ||
2974 | err = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); | |
2975 | } | |
2976 | ||
2977 | out: | |
2978 | if (zhp != NULL) | |
2979 | zfs_close(zhp); | |
2980 | if (ozhp != NULL) | |
2981 | zfs_close(ozhp); | |
34dc7c2f BB |
2982 | |
2983 | return (err); | |
2984 | } | |
2985 | ||
2986 | static int | |
2987 | recv_destroy(libzfs_handle_t *hdl, const char *name, int baselen, | |
330d06f9 | 2988 | char *newname, recvflags_t *flags) |
34dc7c2f | 2989 | { |
34dc7c2f BB |
2990 | int err = 0; |
2991 | prop_changelist_t *clp; | |
2992 | zfs_handle_t *zhp; | |
45d1cae3 BB |
2993 | boolean_t defer = B_FALSE; |
2994 | int spa_version; | |
34dc7c2f BB |
2995 | |
2996 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); | |
2997 | if (zhp == NULL) | |
2998 | return (-1); | |
63652e15 DS |
2999 | zfs_type_t type = zfs_get_type(zhp); |
3000 | if (type == ZFS_TYPE_SNAPSHOT && | |
45d1cae3 BB |
3001 | zfs_spa_version(zhp, &spa_version) == 0 && |
3002 | spa_version >= SPA_VERSION_USERREFS) | |
3003 | defer = B_TRUE; | |
63652e15 DS |
3004 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
3005 | flags->force ? MS_FORCE : 0); | |
34dc7c2f BB |
3006 | zfs_close(zhp); |
3007 | if (clp == NULL) | |
3008 | return (-1); | |
63652e15 | 3009 | |
34dc7c2f BB |
3010 | err = changelist_prefix(clp); |
3011 | if (err) | |
3012 | return (err); | |
3013 | ||
330d06f9 | 3014 | if (flags->verbose) |
dc1c630b | 3015 | (void) printf("attempting destroy %s\n", name); |
63652e15 | 3016 | if (type == ZFS_TYPE_SNAPSHOT) { |
dc1c630b AG |
3017 | nvlist_t *nv = fnvlist_alloc(); |
3018 | fnvlist_add_boolean(nv, name); | |
3019 | err = lzc_destroy_snaps(nv, defer, NULL); | |
3020 | fnvlist_free(nv); | |
3021 | } else { | |
3022 | err = lzc_destroy(name); | |
3023 | } | |
34dc7c2f | 3024 | if (err == 0) { |
330d06f9 | 3025 | if (flags->verbose) |
34dc7c2f | 3026 | (void) printf("success\n"); |
dc1c630b | 3027 | changelist_remove(clp, name); |
34dc7c2f BB |
3028 | } |
3029 | ||
3030 | (void) changelist_postfix(clp); | |
3031 | changelist_free(clp); | |
3032 | ||
45d1cae3 | 3033 | /* |
428870ff BB |
3034 | * Deferred destroy might destroy the snapshot or only mark it to be |
3035 | * destroyed later, and it returns success in either case. | |
45d1cae3 | 3036 | */ |
428870ff BB |
3037 | if (err != 0 || (defer && zfs_dataset_exists(hdl, name, |
3038 | ZFS_TYPE_SNAPSHOT))) { | |
34dc7c2f | 3039 | err = recv_rename(hdl, name, NULL, baselen, newname, flags); |
428870ff | 3040 | } |
34dc7c2f BB |
3041 | |
3042 | return (err); | |
3043 | } | |
3044 | ||
3045 | typedef struct guid_to_name_data { | |
3046 | uint64_t guid; | |
47dfff3b | 3047 | boolean_t bookmark_ok; |
34dc7c2f | 3048 | char *name; |
330d06f9 | 3049 | char *skip; |
30af21b0 PD |
3050 | uint64_t *redact_snap_guids; |
3051 | uint64_t num_redact_snaps; | |
34dc7c2f BB |
3052 | } guid_to_name_data_t; |
3053 | ||
65c7cc49 | 3054 | static boolean_t |
30af21b0 PD |
3055 | redact_snaps_match(zfs_handle_t *zhp, guid_to_name_data_t *gtnd) |
3056 | { | |
3057 | uint64_t *bmark_snaps; | |
3058 | uint_t bmark_num_snaps; | |
3059 | nvlist_t *nvl; | |
3060 | if (zhp->zfs_type != ZFS_TYPE_BOOKMARK) | |
3061 | return (B_FALSE); | |
3062 | ||
3063 | nvl = fnvlist_lookup_nvlist(zhp->zfs_props, | |
3064 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS)); | |
3065 | bmark_snaps = fnvlist_lookup_uint64_array(nvl, ZPROP_VALUE, | |
3066 | &bmark_num_snaps); | |
3067 | if (bmark_num_snaps != gtnd->num_redact_snaps) | |
3068 | return (B_FALSE); | |
3069 | int i = 0; | |
3070 | for (; i < bmark_num_snaps; i++) { | |
3071 | int j = 0; | |
3072 | for (; j < bmark_num_snaps; j++) { | |
3073 | if (bmark_snaps[i] == gtnd->redact_snap_guids[j]) | |
3074 | break; | |
3075 | } | |
3076 | if (j == bmark_num_snaps) | |
3077 | break; | |
3078 | } | |
3079 | return (i == bmark_num_snaps); | |
3080 | } | |
3081 | ||
34dc7c2f BB |
3082 | static int |
3083 | guid_to_name_cb(zfs_handle_t *zhp, void *arg) | |
3084 | { | |
3085 | guid_to_name_data_t *gtnd = arg; | |
47dfff3b | 3086 | const char *slash; |
34dc7c2f BB |
3087 | int err; |
3088 | ||
330d06f9 | 3089 | if (gtnd->skip != NULL && |
47dfff3b MA |
3090 | (slash = strrchr(zhp->zfs_name, '/')) != NULL && |
3091 | strcmp(slash + 1, gtnd->skip) == 0) { | |
3092 | zfs_close(zhp); | |
330d06f9 MA |
3093 | return (0); |
3094 | } | |
3095 | ||
30af21b0 PD |
3096 | if (zfs_prop_get_int(zhp, ZFS_PROP_GUID) == gtnd->guid && |
3097 | (gtnd->num_redact_snaps == -1 || redact_snaps_match(zhp, gtnd))) { | |
34dc7c2f | 3098 | (void) strcpy(gtnd->name, zhp->zfs_name); |
428870ff | 3099 | zfs_close(zhp); |
34dc7c2f BB |
3100 | return (EEXIST); |
3101 | } | |
330d06f9 | 3102 | |
399b9819 | 3103 | err = zfs_iter_children(zhp, guid_to_name_cb, gtnd); |
47dfff3b | 3104 | if (err != EEXIST && gtnd->bookmark_ok) |
399b9819 | 3105 | err = zfs_iter_bookmarks(zhp, guid_to_name_cb, gtnd); |
34dc7c2f BB |
3106 | zfs_close(zhp); |
3107 | return (err); | |
3108 | } | |
3109 | ||
330d06f9 MA |
3110 | /* |
3111 | * Attempt to find the local dataset associated with this guid. In the case of | |
3112 | * multiple matches, we attempt to find the "best" match by searching | |
3113 | * progressively larger portions of the hierarchy. This allows one to send a | |
3114 | * tree of datasets individually and guarantee that we will find the source | |
3115 | * guid within that hierarchy, even if there are multiple matches elsewhere. | |
30af21b0 PD |
3116 | * |
3117 | * If num_redact_snaps is not -1, we attempt to find a redaction bookmark with | |
3118 | * the specified number of redaction snapshots. If num_redact_snaps isn't 0 or | |
3119 | * -1, then redact_snap_guids will be an array of the guids of the snapshots the | |
3120 | * redaction bookmark was created with. If num_redact_snaps is -1, then we will | |
3121 | * attempt to find a snapshot or bookmark (if bookmark_ok is passed) with the | |
3122 | * given guid. Note that a redaction bookmark can be returned if | |
3123 | * num_redact_snaps == -1. | |
330d06f9 | 3124 | */ |
34dc7c2f | 3125 | static int |
30af21b0 PD |
3126 | guid_to_name_redact_snaps(libzfs_handle_t *hdl, const char *parent, |
3127 | uint64_t guid, boolean_t bookmark_ok, uint64_t *redact_snap_guids, | |
3128 | uint64_t num_redact_snaps, char *name) | |
34dc7c2f | 3129 | { |
eca7b760 | 3130 | char pname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 3131 | guid_to_name_data_t gtnd; |
34dc7c2f BB |
3132 | |
3133 | gtnd.guid = guid; | |
47dfff3b | 3134 | gtnd.bookmark_ok = bookmark_ok; |
34dc7c2f | 3135 | gtnd.name = name; |
330d06f9 | 3136 | gtnd.skip = NULL; |
30af21b0 PD |
3137 | gtnd.redact_snap_guids = redact_snap_guids; |
3138 | gtnd.num_redact_snaps = num_redact_snaps; | |
34dc7c2f | 3139 | |
330d06f9 | 3140 | /* |
47dfff3b MA |
3141 | * Search progressively larger portions of the hierarchy, starting |
3142 | * with the filesystem specified by 'parent'. This will | |
330d06f9 MA |
3143 | * select the "most local" version of the origin snapshot in the case |
3144 | * that there are multiple matching snapshots in the system. | |
3145 | */ | |
47dfff3b MA |
3146 | (void) strlcpy(pname, parent, sizeof (pname)); |
3147 | char *cp = strrchr(pname, '@'); | |
3148 | if (cp == NULL) | |
3149 | cp = strchr(pname, '\0'); | |
3150 | for (; cp != NULL; cp = strrchr(pname, '/')) { | |
330d06f9 | 3151 | /* Chop off the last component and open the parent */ |
34dc7c2f | 3152 | *cp = '\0'; |
47dfff3b | 3153 | zfs_handle_t *zhp = make_dataset_handle(hdl, pname); |
330d06f9 MA |
3154 | |
3155 | if (zhp == NULL) | |
3156 | continue; | |
47dfff3b MA |
3157 | int err = guid_to_name_cb(zfs_handle_dup(zhp), >nd); |
3158 | if (err != EEXIST) | |
399b9819 | 3159 | err = zfs_iter_children(zhp, guid_to_name_cb, >nd); |
47dfff3b | 3160 | if (err != EEXIST && bookmark_ok) |
399b9819 | 3161 | err = zfs_iter_bookmarks(zhp, guid_to_name_cb, >nd); |
34dc7c2f | 3162 | zfs_close(zhp); |
330d06f9 MA |
3163 | if (err == EEXIST) |
3164 | return (0); | |
34dc7c2f | 3165 | |
330d06f9 | 3166 | /* |
47dfff3b MA |
3167 | * Remember the last portion of the dataset so we skip it next |
3168 | * time through (as we've already searched that portion of the | |
3169 | * hierarchy). | |
330d06f9 | 3170 | */ |
47dfff3b | 3171 | gtnd.skip = strrchr(pname, '/') + 1; |
330d06f9 | 3172 | } |
34dc7c2f | 3173 | |
330d06f9 | 3174 | return (ENOENT); |
34dc7c2f BB |
3175 | } |
3176 | ||
30af21b0 PD |
3177 | static int |
3178 | guid_to_name(libzfs_handle_t *hdl, const char *parent, uint64_t guid, | |
3179 | boolean_t bookmark_ok, char *name) | |
3180 | { | |
3181 | return (guid_to_name_redact_snaps(hdl, parent, guid, bookmark_ok, NULL, | |
3182 | -1, name)); | |
3183 | } | |
3184 | ||
34dc7c2f | 3185 | /* |
330d06f9 MA |
3186 | * Return +1 if guid1 is before guid2, 0 if they are the same, and -1 if |
3187 | * guid1 is after guid2. | |
34dc7c2f BB |
3188 | */ |
3189 | static int | |
3190 | created_before(libzfs_handle_t *hdl, avl_tree_t *avl, | |
3191 | uint64_t guid1, uint64_t guid2) | |
3192 | { | |
3193 | nvlist_t *nvfs; | |
98401d23 | 3194 | char *fsname = NULL, *snapname = NULL; |
eca7b760 | 3195 | char buf[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 3196 | int rv; |
330d06f9 MA |
3197 | zfs_handle_t *guid1hdl, *guid2hdl; |
3198 | uint64_t create1, create2; | |
34dc7c2f BB |
3199 | |
3200 | if (guid2 == 0) | |
3201 | return (0); | |
3202 | if (guid1 == 0) | |
3203 | return (1); | |
3204 | ||
3205 | nvfs = fsavl_find(avl, guid1, &snapname); | |
60a2434b | 3206 | fsname = fnvlist_lookup_string(nvfs, "name"); |
34dc7c2f | 3207 | (void) snprintf(buf, sizeof (buf), "%s@%s", fsname, snapname); |
330d06f9 MA |
3208 | guid1hdl = zfs_open(hdl, buf, ZFS_TYPE_SNAPSHOT); |
3209 | if (guid1hdl == NULL) | |
34dc7c2f BB |
3210 | return (-1); |
3211 | ||
3212 | nvfs = fsavl_find(avl, guid2, &snapname); | |
60a2434b | 3213 | fsname = fnvlist_lookup_string(nvfs, "name"); |
34dc7c2f | 3214 | (void) snprintf(buf, sizeof (buf), "%s@%s", fsname, snapname); |
330d06f9 MA |
3215 | guid2hdl = zfs_open(hdl, buf, ZFS_TYPE_SNAPSHOT); |
3216 | if (guid2hdl == NULL) { | |
3217 | zfs_close(guid1hdl); | |
34dc7c2f BB |
3218 | return (-1); |
3219 | } | |
3220 | ||
330d06f9 MA |
3221 | create1 = zfs_prop_get_int(guid1hdl, ZFS_PROP_CREATETXG); |
3222 | create2 = zfs_prop_get_int(guid2hdl, ZFS_PROP_CREATETXG); | |
34dc7c2f | 3223 | |
330d06f9 MA |
3224 | if (create1 < create2) |
3225 | rv = -1; | |
3226 | else if (create1 > create2) | |
3227 | rv = +1; | |
3228 | else | |
3229 | rv = 0; | |
3230 | ||
3231 | zfs_close(guid1hdl); | |
3232 | zfs_close(guid2hdl); | |
34dc7c2f BB |
3233 | |
3234 | return (rv); | |
3235 | } | |
3236 | ||
b5256303 | 3237 | /* |
83472fab | 3238 | * This function reestablishes the hierarchy of encryption roots after a |
b5256303 TC |
3239 | * recursive incremental receive has completed. This must be done after the |
3240 | * second call to recv_incremental_replication() has renamed and promoted all | |
83472fab | 3241 | * sent datasets to their final locations in the dataset hierarchy. |
b5256303 TC |
3242 | */ |
3243 | static int | |
bb61cc31 | 3244 | recv_fix_encryption_hierarchy(libzfs_handle_t *hdl, const char *top_zfs, |
7633c0ae | 3245 | nvlist_t *stream_nv) |
b5256303 TC |
3246 | { |
3247 | int err; | |
3248 | nvpair_t *fselem = NULL; | |
3249 | nvlist_t *stream_fss; | |
3250 | ||
60a2434b | 3251 | stream_fss = fnvlist_lookup_nvlist(stream_nv, "fss"); |
b5256303 TC |
3252 | |
3253 | while ((fselem = nvlist_next_nvpair(stream_fss, fselem)) != NULL) { | |
3254 | zfs_handle_t *zhp = NULL; | |
3255 | uint64_t crypt; | |
3256 | nvlist_t *snaps, *props, *stream_nvfs = NULL; | |
3257 | nvpair_t *snapel = NULL; | |
3258 | boolean_t is_encroot, is_clone, stream_encroot; | |
3259 | char *cp; | |
3260 | char *stream_keylocation = NULL; | |
3261 | char keylocation[MAXNAMELEN]; | |
3262 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; | |
3263 | ||
3264 | keylocation[0] = '\0'; | |
60a2434b RM |
3265 | stream_nvfs = fnvpair_value_nvlist(fselem); |
3266 | snaps = fnvlist_lookup_nvlist(stream_nvfs, "snaps"); | |
3267 | props = fnvlist_lookup_nvlist(stream_nvfs, "props"); | |
b5256303 TC |
3268 | stream_encroot = nvlist_exists(stream_nvfs, "is_encroot"); |
3269 | ||
3270 | /* find a snapshot from the stream that exists locally */ | |
3271 | err = ENOENT; | |
3272 | while ((snapel = nvlist_next_nvpair(snaps, snapel)) != NULL) { | |
3273 | uint64_t guid; | |
3274 | ||
60a2434b | 3275 | guid = fnvpair_value_uint64(snapel); |
bb61cc31 | 3276 | err = guid_to_name(hdl, top_zfs, guid, B_FALSE, |
b5256303 TC |
3277 | fsname); |
3278 | if (err == 0) | |
3279 | break; | |
3280 | } | |
3281 | ||
3282 | if (err != 0) | |
3283 | continue; | |
3284 | ||
3285 | cp = strchr(fsname, '@'); | |
3286 | if (cp != NULL) | |
3287 | *cp = '\0'; | |
3288 | ||
3289 | zhp = zfs_open(hdl, fsname, ZFS_TYPE_DATASET); | |
3290 | if (zhp == NULL) { | |
3291 | err = ENOENT; | |
3292 | goto error; | |
3293 | } | |
3294 | ||
3295 | crypt = zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION); | |
3296 | is_clone = zhp->zfs_dmustats.dds_origin[0] != '\0'; | |
3297 | (void) zfs_crypto_get_encryption_root(zhp, &is_encroot, NULL); | |
3298 | ||
da689887 | 3299 | /* we don't need to do anything for unencrypted datasets */ |
b5256303 TC |
3300 | if (crypt == ZIO_CRYPT_OFF) { |
3301 | zfs_close(zhp); | |
3302 | continue; | |
3303 | } | |
3304 | ||
3305 | /* | |
3306 | * If the dataset is flagged as an encryption root, was not | |
3307 | * received as a clone and is not currently an encryption root, | |
3308 | * force it to become one. Fixup the keylocation if necessary. | |
3309 | */ | |
3310 | if (stream_encroot) { | |
3311 | if (!is_clone && !is_encroot) { | |
3312 | err = lzc_change_key(fsname, | |
3313 | DCP_CMD_FORCE_NEW_KEY, NULL, NULL, 0); | |
3314 | if (err != 0) { | |
3315 | zfs_close(zhp); | |
3316 | goto error; | |
3317 | } | |
3318 | } | |
3319 | ||
60a2434b RM |
3320 | stream_keylocation = fnvlist_lookup_string(props, |
3321 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION)); | |
b5256303 TC |
3322 | |
3323 | /* | |
3324 | * Refresh the properties in case the call to | |
3325 | * lzc_change_key() changed the value. | |
3326 | */ | |
3327 | zfs_refresh_properties(zhp); | |
3328 | err = zfs_prop_get(zhp, ZFS_PROP_KEYLOCATION, | |
3329 | keylocation, sizeof (keylocation), NULL, NULL, | |
3330 | 0, B_TRUE); | |
3331 | if (err != 0) { | |
3332 | zfs_close(zhp); | |
3333 | goto error; | |
3334 | } | |
3335 | ||
3336 | if (strcmp(keylocation, stream_keylocation) != 0) { | |
3337 | err = zfs_prop_set(zhp, | |
3338 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), | |
3339 | stream_keylocation); | |
3340 | if (err != 0) { | |
3341 | zfs_close(zhp); | |
3342 | goto error; | |
3343 | } | |
3344 | } | |
3345 | } | |
3346 | ||
3347 | /* | |
3348 | * If the dataset is not flagged as an encryption root and is | |
3349 | * currently an encryption root, force it to inherit from its | |
4807c0ba TC |
3350 | * parent. The root of a raw send should never be |
3351 | * force-inherited. | |
b5256303 | 3352 | */ |
4807c0ba TC |
3353 | if (!stream_encroot && is_encroot && |
3354 | strcmp(top_zfs, fsname) != 0) { | |
b5256303 TC |
3355 | err = lzc_change_key(fsname, DCP_CMD_FORCE_INHERIT, |
3356 | NULL, NULL, 0); | |
3357 | if (err != 0) { | |
3358 | zfs_close(zhp); | |
3359 | goto error; | |
3360 | } | |
3361 | } | |
3362 | ||
3363 | zfs_close(zhp); | |
3364 | } | |
3365 | ||
3366 | return (0); | |
3367 | ||
3368 | error: | |
3369 | return (err); | |
3370 | } | |
3371 | ||
34dc7c2f BB |
3372 | static int |
3373 | recv_incremental_replication(libzfs_handle_t *hdl, const char *tofs, | |
330d06f9 | 3374 | recvflags_t *flags, nvlist_t *stream_nv, avl_tree_t *stream_avl, |
428870ff | 3375 | nvlist_t *renamed) |
34dc7c2f | 3376 | { |
7509a3d2 | 3377 | nvlist_t *local_nv, *deleted = NULL; |
34dc7c2f BB |
3378 | avl_tree_t *local_avl; |
3379 | nvpair_t *fselem, *nextfselem; | |
428870ff | 3380 | char *fromsnap; |
eca7b760 | 3381 | char newname[ZFS_MAX_DATASET_NAME_LEN]; |
7509a3d2 | 3382 | char guidname[32]; |
34dc7c2f | 3383 | int error; |
428870ff BB |
3384 | boolean_t needagain, progress, recursive; |
3385 | char *s1, *s2; | |
34dc7c2f | 3386 | |
60a2434b | 3387 | fromsnap = fnvlist_lookup_string(stream_nv, "fromsnap"); |
428870ff BB |
3388 | |
3389 | recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == | |
3390 | ENOENT); | |
34dc7c2f | 3391 | |
330d06f9 | 3392 | if (flags->dryrun) |
34dc7c2f BB |
3393 | return (0); |
3394 | ||
3395 | again: | |
3396 | needagain = progress = B_FALSE; | |
3397 | ||
60a2434b | 3398 | deleted = fnvlist_alloc(); |
7509a3d2 | 3399 | |
34dc7c2f | 3400 | if ((error = gather_nvlist(hdl, tofs, fromsnap, NULL, |
099fa7e4 | 3401 | recursive, B_TRUE, B_FALSE, recursive, B_FALSE, B_FALSE, B_FALSE, |
f94b3cbf | 3402 | B_FALSE, B_TRUE, &local_nv, &local_avl)) != 0) |
34dc7c2f BB |
3403 | return (error); |
3404 | ||
3405 | /* | |
3406 | * Process deletes and renames | |
3407 | */ | |
3408 | for (fselem = nvlist_next_nvpair(local_nv, NULL); | |
3409 | fselem; fselem = nextfselem) { | |
3410 | nvlist_t *nvfs, *snaps; | |
3411 | nvlist_t *stream_nvfs = NULL; | |
3412 | nvpair_t *snapelem, *nextsnapelem; | |
3413 | uint64_t fromguid = 0; | |
3414 | uint64_t originguid = 0; | |
3415 | uint64_t stream_originguid = 0; | |
3416 | uint64_t parent_fromsnap_guid, stream_parent_fromsnap_guid; | |
3417 | char *fsname, *stream_fsname; | |
3418 | ||
3419 | nextfselem = nvlist_next_nvpair(local_nv, fselem); | |
3420 | ||
60a2434b RM |
3421 | nvfs = fnvpair_value_nvlist(fselem); |
3422 | snaps = fnvlist_lookup_nvlist(nvfs, "snaps"); | |
3423 | fsname = fnvlist_lookup_string(nvfs, "name"); | |
3424 | parent_fromsnap_guid = fnvlist_lookup_uint64(nvfs, | |
3425 | "parentfromsnap"); | |
34dc7c2f BB |
3426 | (void) nvlist_lookup_uint64(nvfs, "origin", &originguid); |
3427 | ||
3428 | /* | |
3429 | * First find the stream's fs, so we can check for | |
3430 | * a different origin (due to "zfs promote") | |
3431 | */ | |
3432 | for (snapelem = nvlist_next_nvpair(snaps, NULL); | |
3433 | snapelem; snapelem = nvlist_next_nvpair(snaps, snapelem)) { | |
3434 | uint64_t thisguid; | |
3435 | ||
60a2434b | 3436 | thisguid = fnvpair_value_uint64(snapelem); |
34dc7c2f BB |
3437 | stream_nvfs = fsavl_find(stream_avl, thisguid, NULL); |
3438 | ||
3439 | if (stream_nvfs != NULL) | |
3440 | break; | |
3441 | } | |
3442 | ||
3443 | /* check for promote */ | |
3444 | (void) nvlist_lookup_uint64(stream_nvfs, "origin", | |
3445 | &stream_originguid); | |
3446 | if (stream_nvfs && originguid != stream_originguid) { | |
3447 | switch (created_before(hdl, local_avl, | |
3448 | stream_originguid, originguid)) { | |
3449 | case 1: { | |
3450 | /* promote it! */ | |
34dc7c2f BB |
3451 | nvlist_t *origin_nvfs; |
3452 | char *origin_fsname; | |
3453 | ||
34dc7c2f BB |
3454 | origin_nvfs = fsavl_find(local_avl, originguid, |
3455 | NULL); | |
60a2434b RM |
3456 | origin_fsname = fnvlist_lookup_string( |
3457 | origin_nvfs, "name"); | |
b5256303 TC |
3458 | error = recv_promote(hdl, fsname, origin_fsname, |
3459 | flags); | |
34dc7c2f BB |
3460 | if (error == 0) |
3461 | progress = B_TRUE; | |
3462 | break; | |
3463 | } | |
3464 | default: | |
3465 | break; | |
3466 | case -1: | |
3467 | fsavl_destroy(local_avl); | |
60a2434b | 3468 | fnvlist_free(local_nv); |
34dc7c2f BB |
3469 | return (-1); |
3470 | } | |
3471 | /* | |
3472 | * We had/have the wrong origin, therefore our | |
3473 | * list of snapshots is wrong. Need to handle | |
3474 | * them on the next pass. | |
3475 | */ | |
3476 | needagain = B_TRUE; | |
3477 | continue; | |
3478 | } | |
3479 | ||
3480 | for (snapelem = nvlist_next_nvpair(snaps, NULL); | |
3481 | snapelem; snapelem = nextsnapelem) { | |
3482 | uint64_t thisguid; | |
3483 | char *stream_snapname; | |
b128c09f | 3484 | nvlist_t *found, *props; |
34dc7c2f BB |
3485 | |
3486 | nextsnapelem = nvlist_next_nvpair(snaps, snapelem); | |
3487 | ||
60a2434b | 3488 | thisguid = fnvpair_value_uint64(snapelem); |
34dc7c2f BB |
3489 | found = fsavl_find(stream_avl, thisguid, |
3490 | &stream_snapname); | |
3491 | ||
3492 | /* check for delete */ | |
3493 | if (found == NULL) { | |
eca7b760 | 3494 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 3495 | |
330d06f9 | 3496 | if (!flags->force) |
34dc7c2f BB |
3497 | continue; |
3498 | ||
3499 | (void) snprintf(name, sizeof (name), "%s@%s", | |
3500 | fsname, nvpair_name(snapelem)); | |
3501 | ||
3502 | error = recv_destroy(hdl, name, | |
3503 | strlen(fsname)+1, newname, flags); | |
3504 | if (error) | |
3505 | needagain = B_TRUE; | |
3506 | else | |
3507 | progress = B_TRUE; | |
3df29340 BB |
3508 | sprintf(guidname, "%llu", |
3509 | (u_longlong_t)thisguid); | |
7509a3d2 | 3510 | nvlist_add_boolean(deleted, guidname); |
34dc7c2f BB |
3511 | continue; |
3512 | } | |
3513 | ||
3514 | stream_nvfs = found; | |
3515 | ||
b128c09f BB |
3516 | if (0 == nvlist_lookup_nvlist(stream_nvfs, "snapprops", |
3517 | &props) && 0 == nvlist_lookup_nvlist(props, | |
3518 | stream_snapname, &props)) { | |
13fe0198 | 3519 | zfs_cmd_t zc = {"\0"}; |
b128c09f | 3520 | |
428870ff | 3521 | zc.zc_cookie = B_TRUE; /* received */ |
b128c09f BB |
3522 | (void) snprintf(zc.zc_name, sizeof (zc.zc_name), |
3523 | "%s@%s", fsname, nvpair_name(snapelem)); | |
3524 | if (zcmd_write_src_nvlist(hdl, &zc, | |
3525 | props) == 0) { | |
3526 | (void) zfs_ioctl(hdl, | |
3527 | ZFS_IOC_SET_PROP, &zc); | |
3528 | zcmd_free_nvlists(&zc); | |
3529 | } | |
3530 | } | |
3531 | ||
34dc7c2f BB |
3532 | /* check for different snapname */ |
3533 | if (strcmp(nvpair_name(snapelem), | |
3534 | stream_snapname) != 0) { | |
eca7b760 IK |
3535 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
3536 | char tryname[ZFS_MAX_DATASET_NAME_LEN]; | |
34dc7c2f BB |
3537 | |
3538 | (void) snprintf(name, sizeof (name), "%s@%s", | |
3539 | fsname, nvpair_name(snapelem)); | |
3540 | (void) snprintf(tryname, sizeof (name), "%s@%s", | |
3541 | fsname, stream_snapname); | |
3542 | ||
3543 | error = recv_rename(hdl, name, tryname, | |
3544 | strlen(fsname)+1, newname, flags); | |
3545 | if (error) | |
3546 | needagain = B_TRUE; | |
3547 | else | |
3548 | progress = B_TRUE; | |
3549 | } | |
3550 | ||
3551 | if (strcmp(stream_snapname, fromsnap) == 0) | |
3552 | fromguid = thisguid; | |
3553 | } | |
3554 | ||
3555 | /* check for delete */ | |
3556 | if (stream_nvfs == NULL) { | |
330d06f9 | 3557 | if (!flags->force) |
34dc7c2f BB |
3558 | continue; |
3559 | ||
3560 | error = recv_destroy(hdl, fsname, strlen(tofs)+1, | |
3561 | newname, flags); | |
3562 | if (error) | |
3563 | needagain = B_TRUE; | |
3564 | else | |
3565 | progress = B_TRUE; | |
3df29340 | 3566 | sprintf(guidname, "%llu", |
02730c33 | 3567 | (u_longlong_t)parent_fromsnap_guid); |
7509a3d2 | 3568 | nvlist_add_boolean(deleted, guidname); |
34dc7c2f BB |
3569 | continue; |
3570 | } | |
3571 | ||
428870ff | 3572 | if (fromguid == 0) { |
330d06f9 | 3573 | if (flags->verbose) { |
428870ff BB |
3574 | (void) printf("local fs %s does not have " |
3575 | "fromsnap (%s in stream); must have " | |
3576 | "been deleted locally; ignoring\n", | |
3577 | fsname, fromsnap); | |
3578 | } | |
34dc7c2f BB |
3579 | continue; |
3580 | } | |
3581 | ||
60a2434b RM |
3582 | stream_fsname = fnvlist_lookup_string(stream_nvfs, "name"); |
3583 | stream_parent_fromsnap_guid = fnvlist_lookup_uint64( | |
3584 | stream_nvfs, "parentfromsnap"); | |
34dc7c2f | 3585 | |
428870ff BB |
3586 | s1 = strrchr(fsname, '/'); |
3587 | s2 = strrchr(stream_fsname, '/'); | |
3588 | ||
7509a3d2 | 3589 | /* |
3590 | * Check if we're going to rename based on parent guid change | |
3591 | * and the current parent guid was also deleted. If it was then | |
3592 | * rename will fail and is likely unneeded, so avoid this and | |
3593 | * force an early retry to determine the new | |
3594 | * parent_fromsnap_guid. | |
3595 | */ | |
3596 | if (stream_parent_fromsnap_guid != 0 && | |
3597 | parent_fromsnap_guid != 0 && | |
3598 | stream_parent_fromsnap_guid != parent_fromsnap_guid) { | |
3df29340 | 3599 | sprintf(guidname, "%llu", |
02730c33 | 3600 | (u_longlong_t)parent_fromsnap_guid); |
7509a3d2 | 3601 | if (nvlist_exists(deleted, guidname)) { |
3602 | progress = B_TRUE; | |
3603 | needagain = B_TRUE; | |
3604 | goto doagain; | |
3605 | } | |
3606 | } | |
3607 | ||
428870ff BB |
3608 | /* |
3609 | * Check for rename. If the exact receive path is specified, it | |
3610 | * does not count as a rename, but we still need to check the | |
3611 | * datasets beneath it. | |
3612 | */ | |
34dc7c2f | 3613 | if ((stream_parent_fromsnap_guid != 0 && |
428870ff | 3614 | parent_fromsnap_guid != 0 && |
34dc7c2f | 3615 | stream_parent_fromsnap_guid != parent_fromsnap_guid) || |
330d06f9 | 3616 | ((flags->isprefix || strcmp(tofs, fsname) != 0) && |
428870ff | 3617 | (s1 != NULL) && (s2 != NULL) && strcmp(s1, s2) != 0)) { |
34dc7c2f | 3618 | nvlist_t *parent; |
eca7b760 | 3619 | char tryname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
3620 | |
3621 | parent = fsavl_find(local_avl, | |
3622 | stream_parent_fromsnap_guid, NULL); | |
3623 | /* | |
3624 | * NB: parent might not be found if we used the | |
3625 | * tosnap for stream_parent_fromsnap_guid, | |
3626 | * because the parent is a newly-created fs; | |
3627 | * we'll be able to rename it after we recv the | |
3628 | * new fs. | |
3629 | */ | |
3630 | if (parent != NULL) { | |
3631 | char *pname; | |
3632 | ||
60a2434b | 3633 | pname = fnvlist_lookup_string(parent, "name"); |
34dc7c2f BB |
3634 | (void) snprintf(tryname, sizeof (tryname), |
3635 | "%s%s", pname, strrchr(stream_fsname, '/')); | |
3636 | } else { | |
3637 | tryname[0] = '\0'; | |
330d06f9 | 3638 | if (flags->verbose) { |
34dc7c2f BB |
3639 | (void) printf("local fs %s new parent " |
3640 | "not found\n", fsname); | |
3641 | } | |
3642 | } | |
3643 | ||
428870ff BB |
3644 | newname[0] = '\0'; |
3645 | ||
34dc7c2f BB |
3646 | error = recv_rename(hdl, fsname, tryname, |
3647 | strlen(tofs)+1, newname, flags); | |
428870ff BB |
3648 | |
3649 | if (renamed != NULL && newname[0] != '\0') { | |
60a2434b | 3650 | fnvlist_add_boolean(renamed, newname); |
428870ff BB |
3651 | } |
3652 | ||
34dc7c2f BB |
3653 | if (error) |
3654 | needagain = B_TRUE; | |
3655 | else | |
3656 | progress = B_TRUE; | |
3657 | } | |
3658 | } | |
3659 | ||
7509a3d2 | 3660 | doagain: |
34dc7c2f | 3661 | fsavl_destroy(local_avl); |
60a2434b RM |
3662 | fnvlist_free(local_nv); |
3663 | fnvlist_free(deleted); | |
34dc7c2f BB |
3664 | |
3665 | if (needagain && progress) { | |
3666 | /* do another pass to fix up temporary names */ | |
330d06f9 | 3667 | if (flags->verbose) |
34dc7c2f BB |
3668 | (void) printf("another pass:\n"); |
3669 | goto again; | |
3670 | } | |
3671 | ||
b5256303 | 3672 | return (needagain || error != 0); |
34dc7c2f BB |
3673 | } |
3674 | ||
3675 | static int | |
3676 | zfs_receive_package(libzfs_handle_t *hdl, int fd, const char *destname, | |
330d06f9 | 3677 | recvflags_t *flags, dmu_replay_record_t *drr, zio_cksum_t *zc, |
196bee4c | 3678 | char **top_zfs, nvlist_t *cmdprops) |
34dc7c2f BB |
3679 | { |
3680 | nvlist_t *stream_nv = NULL; | |
3681 | avl_tree_t *stream_avl = NULL; | |
3682 | char *fromsnap = NULL; | |
671c9354 | 3683 | char *sendsnap = NULL; |
428870ff | 3684 | char *cp; |
eca7b760 IK |
3685 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; |
3686 | char sendfs[ZFS_MAX_DATASET_NAME_LEN]; | |
34dc7c2f BB |
3687 | char errbuf[1024]; |
3688 | dmu_replay_record_t drre; | |
3689 | int error; | |
3690 | boolean_t anyerr = B_FALSE; | |
3691 | boolean_t softerr = B_FALSE; | |
b5256303 | 3692 | boolean_t recursive, raw; |
34dc7c2f BB |
3693 | |
3694 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3695 | "cannot receive")); | |
3696 | ||
34dc7c2f BB |
3697 | assert(drr->drr_type == DRR_BEGIN); |
3698 | assert(drr->drr_u.drr_begin.drr_magic == DMU_BACKUP_MAGIC); | |
428870ff BB |
3699 | assert(DMU_GET_STREAM_HDRTYPE(drr->drr_u.drr_begin.drr_versioninfo) == |
3700 | DMU_COMPOUNDSTREAM); | |
34dc7c2f BB |
3701 | |
3702 | /* | |
3703 | * Read in the nvlist from the stream. | |
3704 | */ | |
3705 | if (drr->drr_payloadlen != 0) { | |
34dc7c2f | 3706 | error = recv_read_nvlist(hdl, fd, drr->drr_payloadlen, |
330d06f9 | 3707 | &stream_nv, flags->byteswap, zc); |
34dc7c2f BB |
3708 | if (error) { |
3709 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
3710 | goto out; | |
3711 | } | |
3712 | } | |
3713 | ||
428870ff BB |
3714 | recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == |
3715 | ENOENT); | |
b5256303 | 3716 | raw = (nvlist_lookup_boolean(stream_nv, "raw") == 0); |
428870ff BB |
3717 | |
3718 | if (recursive && strchr(destname, '@')) { | |
3719 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3720 | "cannot specify snapshot name for multi-snapshot stream")); | |
3721 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
3722 | goto out; | |
3723 | } | |
3724 | ||
34dc7c2f BB |
3725 | /* |
3726 | * Read in the end record and verify checksum. | |
3727 | */ | |
3728 | if (0 != (error = recv_read(hdl, fd, &drre, sizeof (drre), | |
330d06f9 | 3729 | flags->byteswap, NULL))) |
34dc7c2f | 3730 | goto out; |
330d06f9 | 3731 | if (flags->byteswap) { |
34dc7c2f BB |
3732 | drre.drr_type = BSWAP_32(drre.drr_type); |
3733 | drre.drr_u.drr_end.drr_checksum.zc_word[0] = | |
3734 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[0]); | |
3735 | drre.drr_u.drr_end.drr_checksum.zc_word[1] = | |
3736 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[1]); | |
3737 | drre.drr_u.drr_end.drr_checksum.zc_word[2] = | |
3738 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[2]); | |
3739 | drre.drr_u.drr_end.drr_checksum.zc_word[3] = | |
3740 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[3]); | |
3741 | } | |
3742 | if (drre.drr_type != DRR_END) { | |
3743 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
3744 | goto out; | |
3745 | } | |
3746 | if (!ZIO_CHECKSUM_EQUAL(drre.drr_u.drr_end.drr_checksum, *zc)) { | |
3747 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3748 | "incorrect header checksum")); | |
3749 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
3750 | goto out; | |
3751 | } | |
3752 | ||
3753 | (void) nvlist_lookup_string(stream_nv, "fromsnap", &fromsnap); | |
3754 | ||
3755 | if (drr->drr_payloadlen != 0) { | |
3756 | nvlist_t *stream_fss; | |
3757 | ||
60a2434b | 3758 | stream_fss = fnvlist_lookup_nvlist(stream_nv, "fss"); |
34dc7c2f BB |
3759 | if ((stream_avl = fsavl_create(stream_fss)) == NULL) { |
3760 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3761 | "couldn't allocate avl tree")); | |
3762 | error = zfs_error(hdl, EZFS_NOMEM, errbuf); | |
3763 | goto out; | |
3764 | } | |
3765 | ||
4c3c6b6c | 3766 | if (fromsnap != NULL && recursive) { |
428870ff BB |
3767 | nvlist_t *renamed = NULL; |
3768 | nvpair_t *pair = NULL; | |
3769 | ||
eca7b760 | 3770 | (void) strlcpy(tofs, destname, sizeof (tofs)); |
330d06f9 | 3771 | if (flags->isprefix) { |
428870ff BB |
3772 | struct drr_begin *drrb = &drr->drr_u.drr_begin; |
3773 | int i; | |
3774 | ||
330d06f9 | 3775 | if (flags->istail) { |
428870ff BB |
3776 | cp = strrchr(drrb->drr_toname, '/'); |
3777 | if (cp == NULL) { | |
3778 | (void) strlcat(tofs, "/", | |
eca7b760 | 3779 | sizeof (tofs)); |
428870ff BB |
3780 | i = 0; |
3781 | } else { | |
3782 | i = (cp - drrb->drr_toname); | |
3783 | } | |
3784 | } else { | |
3785 | i = strcspn(drrb->drr_toname, "/@"); | |
3786 | } | |
34dc7c2f | 3787 | /* zfs_receive_one() will create_parents() */ |
428870ff | 3788 | (void) strlcat(tofs, &drrb->drr_toname[i], |
eca7b760 | 3789 | sizeof (tofs)); |
34dc7c2f BB |
3790 | *strchr(tofs, '@') = '\0'; |
3791 | } | |
428870ff | 3792 | |
4c3c6b6c | 3793 | if (!flags->dryrun && !flags->nomount) { |
60a2434b | 3794 | renamed = fnvlist_alloc(); |
428870ff BB |
3795 | } |
3796 | ||
3797 | softerr = recv_incremental_replication(hdl, tofs, flags, | |
3798 | stream_nv, stream_avl, renamed); | |
3799 | ||
3800 | /* Unmount renamed filesystems before receiving. */ | |
3801 | while ((pair = nvlist_next_nvpair(renamed, | |
3802 | pair)) != NULL) { | |
3803 | zfs_handle_t *zhp; | |
3804 | prop_changelist_t *clp = NULL; | |
3805 | ||
3806 | zhp = zfs_open(hdl, nvpair_name(pair), | |
3807 | ZFS_TYPE_FILESYSTEM); | |
3808 | if (zhp != NULL) { | |
3809 | clp = changelist_gather(zhp, | |
a57d3d45 MZ |
3810 | ZFS_PROP_MOUNTPOINT, 0, |
3811 | flags->forceunmount ? MS_FORCE : 0); | |
428870ff BB |
3812 | zfs_close(zhp); |
3813 | if (clp != NULL) { | |
3814 | softerr |= | |
3815 | changelist_prefix(clp); | |
3816 | changelist_free(clp); | |
3817 | } | |
3818 | } | |
3819 | } | |
3820 | ||
60a2434b | 3821 | fnvlist_free(renamed); |
34dc7c2f BB |
3822 | } |
3823 | } | |
3824 | ||
428870ff BB |
3825 | /* |
3826 | * Get the fs specified by the first path in the stream (the top level | |
3827 | * specified by 'zfs send') and pass it to each invocation of | |
3828 | * zfs_receive_one(). | |
3829 | */ | |
3830 | (void) strlcpy(sendfs, drr->drr_u.drr_begin.drr_toname, | |
eca7b760 | 3831 | sizeof (sendfs)); |
671c9354 | 3832 | if ((cp = strchr(sendfs, '@')) != NULL) { |
428870ff | 3833 | *cp = '\0'; |
671c9354 DM |
3834 | /* |
3835 | * Find the "sendsnap", the final snapshot in a replication | |
3836 | * stream. zfs_receive_one() handles certain errors | |
3837 | * differently, depending on if the contained stream is the | |
3838 | * last one or not. | |
3839 | */ | |
3840 | sendsnap = (cp + 1); | |
3841 | } | |
34dc7c2f BB |
3842 | |
3843 | /* Finally, receive each contained stream */ | |
3844 | do { | |
3845 | /* | |
3846 | * we should figure out if it has a recoverable | |
3847 | * error, in which case do a recv_skip() and drive on. | |
3848 | * Note, if we fail due to already having this guid, | |
3849 | * zfs_receive_one() will take care of it (ie, | |
3850 | * recv_skip() and return 0). | |
3851 | */ | |
fcff0f35 | 3852 | error = zfs_receive_impl(hdl, destname, NULL, flags, fd, |
196bee4c | 3853 | sendfs, stream_nv, stream_avl, top_zfs, sendsnap, cmdprops); |
34dc7c2f BB |
3854 | if (error == ENODATA) { |
3855 | error = 0; | |
3856 | break; | |
3857 | } | |
3858 | anyerr |= error; | |
3859 | } while (error == 0); | |
3860 | ||
4c3c6b6c | 3861 | if (drr->drr_payloadlen != 0 && recursive && fromsnap != NULL) { |
34dc7c2f BB |
3862 | /* |
3863 | * Now that we have the fs's they sent us, try the | |
3864 | * renames again. | |
3865 | */ | |
3866 | softerr = recv_incremental_replication(hdl, tofs, flags, | |
428870ff | 3867 | stream_nv, stream_avl, NULL); |
34dc7c2f BB |
3868 | } |
3869 | ||
bb61cc31 TC |
3870 | if (raw && softerr == 0 && *top_zfs != NULL) { |
3871 | softerr = recv_fix_encryption_hierarchy(hdl, *top_zfs, | |
7633c0ae | 3872 | stream_nv); |
b5256303 TC |
3873 | } |
3874 | ||
34dc7c2f BB |
3875 | out: |
3876 | fsavl_destroy(stream_avl); | |
60a2434b | 3877 | fnvlist_free(stream_nv); |
34dc7c2f BB |
3878 | if (softerr) |
3879 | error = -2; | |
3880 | if (anyerr) | |
3881 | error = -1; | |
3882 | return (error); | |
3883 | } | |
3884 | ||
428870ff BB |
3885 | static void |
3886 | trunc_prop_errs(int truncated) | |
3887 | { | |
3888 | ASSERT(truncated != 0); | |
3889 | ||
3890 | if (truncated == 1) | |
3891 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
3892 | "1 more property could not be set\n")); | |
3893 | else | |
3894 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
3895 | "%d more properties could not be set\n"), truncated); | |
3896 | } | |
3897 | ||
34dc7c2f BB |
3898 | static int |
3899 | recv_skip(libzfs_handle_t *hdl, int fd, boolean_t byteswap) | |
3900 | { | |
3901 | dmu_replay_record_t *drr; | |
f1512ee6 | 3902 | void *buf = zfs_alloc(hdl, SPA_MAXBLOCKSIZE); |
870e7a52 | 3903 | uint64_t payload_size; |
428870ff BB |
3904 | char errbuf[1024]; |
3905 | ||
3906 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
870e7a52 | 3907 | "cannot receive")); |
34dc7c2f BB |
3908 | |
3909 | /* XXX would be great to use lseek if possible... */ | |
3910 | drr = buf; | |
3911 | ||
3912 | while (recv_read(hdl, fd, drr, sizeof (dmu_replay_record_t), | |
3913 | byteswap, NULL) == 0) { | |
3914 | if (byteswap) | |
3915 | drr->drr_type = BSWAP_32(drr->drr_type); | |
3916 | ||
3917 | switch (drr->drr_type) { | |
3918 | case DRR_BEGIN: | |
428870ff | 3919 | if (drr->drr_payloadlen != 0) { |
47dfff3b MA |
3920 | (void) recv_read(hdl, fd, buf, |
3921 | drr->drr_payloadlen, B_FALSE, NULL); | |
428870ff | 3922 | } |
34dc7c2f BB |
3923 | break; |
3924 | ||
3925 | case DRR_END: | |
3926 | free(buf); | |
3927 | return (0); | |
3928 | ||
3929 | case DRR_OBJECT: | |
3930 | if (byteswap) { | |
3931 | drr->drr_u.drr_object.drr_bonuslen = | |
3932 | BSWAP_32(drr->drr_u.drr_object. | |
3933 | drr_bonuslen); | |
870e7a52 TC |
3934 | drr->drr_u.drr_object.drr_raw_bonuslen = |
3935 | BSWAP_32(drr->drr_u.drr_object. | |
3936 | drr_raw_bonuslen); | |
34dc7c2f | 3937 | } |
870e7a52 TC |
3938 | |
3939 | payload_size = | |
3940 | DRR_OBJECT_PAYLOAD_SIZE(&drr->drr_u.drr_object); | |
3941 | (void) recv_read(hdl, fd, buf, payload_size, | |
34dc7c2f BB |
3942 | B_FALSE, NULL); |
3943 | break; | |
3944 | ||
3945 | case DRR_WRITE: | |
3946 | if (byteswap) { | |
2aa34383 DK |
3947 | drr->drr_u.drr_write.drr_logical_size = |
3948 | BSWAP_64( | |
3949 | drr->drr_u.drr_write.drr_logical_size); | |
3950 | drr->drr_u.drr_write.drr_compressed_size = | |
3951 | BSWAP_64( | |
3952 | drr->drr_u.drr_write.drr_compressed_size); | |
34dc7c2f | 3953 | } |
870e7a52 | 3954 | payload_size = |
2aa34383 | 3955 | DRR_WRITE_PAYLOAD_SIZE(&drr->drr_u.drr_write); |
7a6c12fd | 3956 | assert(payload_size <= SPA_MAXBLOCKSIZE); |
34dc7c2f | 3957 | (void) recv_read(hdl, fd, buf, |
2aa34383 | 3958 | payload_size, B_FALSE, NULL); |
34dc7c2f | 3959 | break; |
428870ff BB |
3960 | case DRR_SPILL: |
3961 | if (byteswap) { | |
9f8026c8 | 3962 | drr->drr_u.drr_spill.drr_length = |
428870ff | 3963 | BSWAP_64(drr->drr_u.drr_spill.drr_length); |
870e7a52 TC |
3964 | drr->drr_u.drr_spill.drr_compressed_size = |
3965 | BSWAP_64(drr->drr_u.drr_spill. | |
3966 | drr_compressed_size); | |
428870ff | 3967 | } |
870e7a52 TC |
3968 | |
3969 | payload_size = | |
3970 | DRR_SPILL_PAYLOAD_SIZE(&drr->drr_u.drr_spill); | |
3971 | (void) recv_read(hdl, fd, buf, payload_size, | |
3972 | B_FALSE, NULL); | |
428870ff | 3973 | break; |
9b67f605 MA |
3974 | case DRR_WRITE_EMBEDDED: |
3975 | if (byteswap) { | |
3976 | drr->drr_u.drr_write_embedded.drr_psize = | |
3977 | BSWAP_32(drr->drr_u.drr_write_embedded. | |
3978 | drr_psize); | |
3979 | } | |
3980 | (void) recv_read(hdl, fd, buf, | |
3981 | P2ROUNDUP(drr->drr_u.drr_write_embedded.drr_psize, | |
3982 | 8), B_FALSE, NULL); | |
3983 | break; | |
30af21b0 | 3984 | case DRR_OBJECT_RANGE: |
428870ff | 3985 | case DRR_WRITE_BYREF: |
34dc7c2f BB |
3986 | case DRR_FREEOBJECTS: |
3987 | case DRR_FREE: | |
3988 | break; | |
3989 | ||
3990 | default: | |
428870ff BB |
3991 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
3992 | "invalid record type")); | |
fad5fb01 | 3993 | free(buf); |
428870ff | 3994 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); |
34dc7c2f BB |
3995 | } |
3996 | } | |
3997 | ||
3998 | free(buf); | |
3999 | return (-1); | |
4000 | } | |
4001 | ||
47dfff3b MA |
4002 | static void |
4003 | recv_ecksum_set_aux(libzfs_handle_t *hdl, const char *target_snap, | |
7145123b | 4004 | boolean_t resumable, boolean_t checksum) |
47dfff3b | 4005 | { |
eca7b760 | 4006 | char target_fs[ZFS_MAX_DATASET_NAME_LEN]; |
47dfff3b | 4007 | |
7145123b PD |
4008 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, (checksum ? |
4009 | "checksum mismatch" : "incomplete stream"))); | |
47dfff3b MA |
4010 | |
4011 | if (!resumable) | |
4012 | return; | |
4013 | (void) strlcpy(target_fs, target_snap, sizeof (target_fs)); | |
4014 | *strchr(target_fs, '@') = '\0'; | |
4015 | zfs_handle_t *zhp = zfs_open(hdl, target_fs, | |
4016 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
4017 | if (zhp == NULL) | |
4018 | return; | |
4019 | ||
4020 | char token_buf[ZFS_MAXPROPLEN]; | |
4021 | int error = zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, | |
4022 | token_buf, sizeof (token_buf), | |
4023 | NULL, NULL, 0, B_TRUE); | |
4024 | if (error == 0) { | |
4025 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4026 | "checksum mismatch or incomplete stream.\n" | |
4027 | "Partially received snapshot is saved.\n" | |
4028 | "A resuming stream can be generated on the sending " | |
4029 | "system by running:\n" | |
4030 | " zfs send -t %s"), | |
4031 | token_buf); | |
4032 | } | |
4033 | zfs_close(zhp); | |
4034 | } | |
4035 | ||
a3eeab2d | 4036 | /* |
4037 | * Prepare a new nvlist of properties that are to override (-o) or be excluded | |
4038 | * (-x) from the received dataset | |
4039 | * recvprops: received properties from the send stream | |
4040 | * cmdprops: raw input properties from command line | |
4041 | * origprops: properties, both locally-set and received, currently set on the | |
4042 | * target dataset if it exists, NULL otherwise. | |
4043 | * oxprops: valid output override (-o) and excluded (-x) properties | |
4044 | */ | |
4045 | static int | |
d9c460a0 TC |
4046 | zfs_setup_cmdline_props(libzfs_handle_t *hdl, zfs_type_t type, |
4047 | char *fsname, boolean_t zoned, boolean_t recursive, boolean_t newfs, | |
4048 | boolean_t raw, boolean_t toplevel, nvlist_t *recvprops, nvlist_t *cmdprops, | |
4049 | nvlist_t *origprops, nvlist_t **oxprops, uint8_t **wkeydata_out, | |
4050 | uint_t *wkeylen_out, const char *errbuf) | |
a3eeab2d | 4051 | { |
4052 | nvpair_t *nvp; | |
4053 | nvlist_t *oprops, *voprops; | |
4054 | zfs_handle_t *zhp = NULL; | |
4055 | zpool_handle_t *zpool_hdl = NULL; | |
d9c460a0 | 4056 | char *cp; |
a3eeab2d | 4057 | int ret = 0; |
d9c460a0 | 4058 | char namebuf[ZFS_MAX_DATASET_NAME_LEN]; |
a3eeab2d | 4059 | |
4060 | if (nvlist_empty(cmdprops)) | |
4061 | return (0); /* No properties to override or exclude */ | |
4062 | ||
4063 | *oxprops = fnvlist_alloc(); | |
4064 | oprops = fnvlist_alloc(); | |
4065 | ||
d9c460a0 TC |
4066 | strlcpy(namebuf, fsname, ZFS_MAX_DATASET_NAME_LEN); |
4067 | ||
4068 | /* | |
4069 | * Get our dataset handle. The target dataset may not exist yet. | |
4070 | */ | |
4071 | if (zfs_dataset_exists(hdl, namebuf, ZFS_TYPE_DATASET)) { | |
4072 | zhp = zfs_open(hdl, namebuf, ZFS_TYPE_DATASET); | |
4073 | if (zhp == NULL) { | |
4074 | ret = -1; | |
4075 | goto error; | |
4076 | } | |
4077 | } | |
4078 | ||
4079 | /* open the zpool handle */ | |
4080 | cp = strchr(namebuf, '/'); | |
4081 | if (cp != NULL) | |
4082 | *cp = '\0'; | |
4083 | zpool_hdl = zpool_open(hdl, namebuf); | |
4084 | if (zpool_hdl == NULL) { | |
4085 | ret = -1; | |
4086 | goto error; | |
4087 | } | |
4088 | ||
4089 | /* restore namebuf to match fsname for later use */ | |
4090 | if (cp != NULL) | |
4091 | *cp = '/'; | |
4092 | ||
a3eeab2d | 4093 | /* |
4094 | * first iteration: process excluded (-x) properties now and gather | |
4095 | * added (-o) properties to be later processed by zfs_valid_proplist() | |
4096 | */ | |
4097 | nvp = NULL; | |
4098 | while ((nvp = nvlist_next_nvpair(cmdprops, nvp)) != NULL) { | |
4099 | const char *name = nvpair_name(nvp); | |
4100 | zfs_prop_t prop = zfs_name_to_prop(name); | |
4101 | ||
4476ccd9 RE |
4102 | /* |
4103 | * It turns out, if we don't normalize "aliased" names | |
4104 | * e.g. compress= against the "real" names (e.g. compression) | |
4105 | * here, then setting/excluding them does not work as | |
4106 | * intended. | |
4107 | * | |
4108 | * But since user-defined properties wouldn't have a valid | |
4109 | * mapping here, we do this conditional dance. | |
4110 | */ | |
4111 | const char *newname = name; | |
4112 | if (prop >= ZFS_PROP_TYPE) | |
4113 | newname = zfs_prop_to_name(prop); | |
4114 | ||
a3eeab2d | 4115 | /* "origin" is processed separately, don't handle it here */ |
4116 | if (prop == ZFS_PROP_ORIGIN) | |
4117 | continue; | |
4118 | ||
d9c460a0 TC |
4119 | /* raw streams can't override encryption properties */ |
4120 | if ((zfs_prop_encryption_key_param(prop) || | |
b4238327 | 4121 | prop == ZFS_PROP_ENCRYPTION) && raw) { |
d9c460a0 TC |
4122 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4123 | "encryption property '%s' cannot " | |
b4238327 TC |
4124 | "be set or excluded for raw streams."), name); |
4125 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); | |
4126 | goto error; | |
4127 | } | |
4128 | ||
4129 | /* incremental streams can only exclude encryption properties */ | |
4130 | if ((zfs_prop_encryption_key_param(prop) || | |
4131 | prop == ZFS_PROP_ENCRYPTION) && !newfs && | |
4132 | nvpair_type(nvp) != DATA_TYPE_BOOLEAN) { | |
4133 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4134 | "encryption property '%s' cannot " | |
4135 | "be set for incremental streams."), name); | |
d9c460a0 TC |
4136 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); |
4137 | goto error; | |
4138 | } | |
4139 | ||
a3eeab2d | 4140 | switch (nvpair_type(nvp)) { |
4141 | case DATA_TYPE_BOOLEAN: /* -x property */ | |
4142 | /* | |
4143 | * DATA_TYPE_BOOLEAN is the way we're asked to "exclude" | |
4144 | * a property: this is done by forcing an explicit | |
4145 | * inherit on the destination so the effective value is | |
4146 | * not the one we received from the send stream. | |
b0269cd8 I |
4147 | */ |
4148 | if (!zfs_prop_valid_for_type(prop, type, B_FALSE) && | |
4149 | !zfs_prop_user(name)) { | |
4150 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
4151 | "Warning: %s: property '%s' does not " | |
4152 | "apply to datasets of this type\n"), | |
4153 | fsname, name); | |
4154 | continue; | |
4155 | } | |
4156 | /* | |
a3eeab2d | 4157 | * We do this only if the property is not already |
4158 | * locally-set, in which case its value will take | |
4159 | * priority over the received anyway. | |
4160 | */ | |
4476ccd9 | 4161 | if (nvlist_exists(origprops, newname)) { |
a3eeab2d | 4162 | nvlist_t *attrs; |
b4238327 | 4163 | char *source = NULL; |
a3eeab2d | 4164 | |
4476ccd9 RE |
4165 | attrs = fnvlist_lookup_nvlist(origprops, |
4166 | newname); | |
b4238327 TC |
4167 | if (nvlist_lookup_string(attrs, |
4168 | ZPROP_SOURCE, &source) == 0 && | |
4169 | strcmp(source, ZPROP_SOURCE_VAL_RECVD) != 0) | |
a3eeab2d | 4170 | continue; |
4171 | } | |
4172 | /* | |
4173 | * We can't force an explicit inherit on non-inheritable | |
4174 | * properties: if we're asked to exclude this kind of | |
4175 | * values we remove them from "recvprops" input nvlist. | |
4176 | */ | |
63652e15 DS |
4177 | if (!zfs_prop_user(name) && /* can be inherited too */ |
4178 | !zfs_prop_inheritable(prop) && | |
4476ccd9 RE |
4179 | nvlist_exists(recvprops, newname)) |
4180 | fnvlist_remove(recvprops, newname); | |
a3eeab2d | 4181 | else |
4476ccd9 | 4182 | fnvlist_add_boolean(*oxprops, newname); |
a3eeab2d | 4183 | break; |
4184 | case DATA_TYPE_STRING: /* -o property=value */ | |
b0269cd8 I |
4185 | /* |
4186 | * we're trying to override a property that does not | |
4187 | * make sense for this type of dataset, but we don't | |
4188 | * want to fail if the receive is recursive: this comes | |
4189 | * in handy when the send stream contains, for | |
4190 | * instance, a child ZVOL and we're trying to receive | |
4191 | * it with "-o atime=on" | |
4192 | */ | |
4193 | if (!zfs_prop_valid_for_type(prop, type, B_FALSE) && | |
4194 | !zfs_prop_user(name)) { | |
4195 | if (recursive) | |
4196 | continue; | |
4197 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4198 | "property '%s' does not apply to datasets " | |
4199 | "of this type"), name); | |
4200 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); | |
4201 | goto error; | |
4202 | } | |
4476ccd9 RE |
4203 | fnvlist_add_string(oprops, newname, |
4204 | fnvpair_value_string(nvp)); | |
a3eeab2d | 4205 | break; |
4206 | default: | |
4207 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4208 | "property '%s' must be a string or boolean"), name); | |
4209 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); | |
4210 | goto error; | |
4211 | } | |
4212 | } | |
4213 | ||
4214 | if (toplevel) { | |
4215 | /* convert override strings properties to native */ | |
4216 | if ((voprops = zfs_valid_proplist(hdl, ZFS_TYPE_DATASET, | |
b5256303 | 4217 | oprops, zoned, zhp, zpool_hdl, B_FALSE, errbuf)) == NULL) { |
a3eeab2d | 4218 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); |
4219 | goto error; | |
4220 | } | |
4221 | ||
d9c460a0 TC |
4222 | /* |
4223 | * zfs_crypto_create() requires the parent name. Get it | |
4224 | * by truncating the fsname copy stored in namebuf. | |
4225 | */ | |
4226 | cp = strrchr(namebuf, '/'); | |
4227 | if (cp != NULL) | |
4228 | *cp = '\0'; | |
4229 | ||
4230 | if (!raw && zfs_crypto_create(hdl, namebuf, voprops, NULL, | |
4231 | B_FALSE, wkeydata_out, wkeylen_out) != 0) { | |
4232 | fnvlist_free(voprops); | |
4233 | ret = zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf); | |
4234 | goto error; | |
4235 | } | |
4236 | ||
a3eeab2d | 4237 | /* second pass: process "-o" properties */ |
4238 | fnvlist_merge(*oxprops, voprops); | |
4239 | fnvlist_free(voprops); | |
4240 | } else { | |
4241 | /* override props on child dataset are inherited */ | |
4242 | nvp = NULL; | |
4243 | while ((nvp = nvlist_next_nvpair(oprops, nvp)) != NULL) { | |
4244 | const char *name = nvpair_name(nvp); | |
4245 | fnvlist_add_boolean(*oxprops, name); | |
4246 | } | |
4247 | } | |
4248 | ||
4249 | error: | |
d9c460a0 TC |
4250 | if (zhp != NULL) |
4251 | zfs_close(zhp); | |
4252 | if (zpool_hdl != NULL) | |
4253 | zpool_close(zpool_hdl); | |
a3eeab2d | 4254 | fnvlist_free(oprops); |
4255 | return (ret); | |
4256 | } | |
4257 | ||
34dc7c2f BB |
4258 | /* |
4259 | * Restores a backup of tosnap from the file descriptor specified by infd. | |
4260 | */ | |
4261 | static int | |
4262 | zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, | |
fcff0f35 PD |
4263 | const char *originsnap, recvflags_t *flags, dmu_replay_record_t *drr, |
4264 | dmu_replay_record_t *drr_noswap, const char *sendfs, nvlist_t *stream_nv, | |
196bee4c MA |
4265 | avl_tree_t *stream_avl, char **top_zfs, |
4266 | const char *finalsnap, nvlist_t *cmdprops) | |
34dc7c2f | 4267 | { |
67de71e6 | 4268 | struct timespec begin_time; |
428870ff | 4269 | int ioctl_err, ioctl_errno, err; |
34dc7c2f BB |
4270 | char *cp; |
4271 | struct drr_begin *drrb = &drr->drr_u.drr_begin; | |
4272 | char errbuf[1024]; | |
428870ff | 4273 | const char *chopprefix; |
34dc7c2f | 4274 | boolean_t newfs = B_FALSE; |
a132c2b4 | 4275 | boolean_t stream_wantsnewfs, stream_resumingnewfs; |
43e52edd BB |
4276 | boolean_t newprops = B_FALSE; |
4277 | uint64_t read_bytes = 0; | |
4278 | uint64_t errflags = 0; | |
34dc7c2f BB |
4279 | uint64_t parent_snapguid = 0; |
4280 | prop_changelist_t *clp = NULL; | |
b128c09f | 4281 | nvlist_t *snapprops_nvlist = NULL; |
9c5e88b1 | 4282 | nvlist_t *snapholds_nvlist = NULL; |
428870ff | 4283 | zprop_errflags_t prop_errflags; |
43e52edd | 4284 | nvlist_t *prop_errors = NULL; |
428870ff | 4285 | boolean_t recursive; |
671c9354 | 4286 | char *snapname = NULL; |
43e52edd BB |
4287 | char destsnap[MAXPATHLEN * 2]; |
4288 | char origin[MAXNAMELEN]; | |
4289 | char name[MAXPATHLEN]; | |
b5256303 | 4290 | char tmp_keylocation[MAXNAMELEN]; |
a3eeab2d | 4291 | nvlist_t *rcvprops = NULL; /* props received from the send stream */ |
4292 | nvlist_t *oxprops = NULL; /* override (-o) and exclude (-x) props */ | |
4293 | nvlist_t *origprops = NULL; /* original props (if destination exists) */ | |
806739f9 | 4294 | zfs_type_t type = ZFS_TYPE_INVALID; |
bee7e4ff | 4295 | boolean_t toplevel = B_FALSE; |
a3eeab2d | 4296 | boolean_t zoned = B_FALSE; |
c03f0470 | 4297 | boolean_t hastoken = B_FALSE; |
30af21b0 | 4298 | boolean_t redacted; |
d9c460a0 TC |
4299 | uint8_t *wkeydata = NULL; |
4300 | uint_t wkeylen = 0; | |
34dc7c2f | 4301 | |
67de71e6 AZ |
4302 | #ifndef CLOCK_MONOTONIC_RAW |
4303 | #define CLOCK_MONOTONIC_RAW CLOCK_MONOTONIC | |
4304 | #endif | |
4305 | clock_gettime(CLOCK_MONOTONIC_RAW, &begin_time); | |
43e52edd | 4306 | bzero(origin, MAXNAMELEN); |
b5256303 | 4307 | bzero(tmp_keylocation, MAXNAMELEN); |
34dc7c2f BB |
4308 | |
4309 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4310 | "cannot receive")); | |
4311 | ||
428870ff BB |
4312 | recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == |
4313 | ENOENT); | |
4314 | ||
9c5e88b1 PZ |
4315 | /* Did the user request holds be skipped via zfs recv -k? */ |
4316 | boolean_t holds = flags->holds && !flags->skipholds; | |
4317 | ||
34dc7c2f | 4318 | if (stream_avl != NULL) { |
b5256303 | 4319 | char *keylocation = NULL; |
48f783de | 4320 | nvlist_t *lookup = NULL; |
b128c09f BB |
4321 | nvlist_t *fs = fsavl_find(stream_avl, drrb->drr_toguid, |
4322 | &snapname); | |
34dc7c2f BB |
4323 | |
4324 | (void) nvlist_lookup_uint64(fs, "parentfromsnap", | |
4325 | &parent_snapguid); | |
a3eeab2d | 4326 | err = nvlist_lookup_nvlist(fs, "props", &rcvprops); |
43e52edd | 4327 | if (err) { |
60a2434b | 4328 | rcvprops = fnvlist_alloc(); |
43e52edd BB |
4329 | newprops = B_TRUE; |
4330 | } | |
34dc7c2f | 4331 | |
b5256303 TC |
4332 | /* |
4333 | * The keylocation property may only be set on encryption roots, | |
4334 | * but this dataset might not become an encryption root until | |
83472fab | 4335 | * recv_fix_encryption_hierarchy() is called. That function |
b5256303 TC |
4336 | * will fixup the keylocation anyway, so we temporarily unset |
4337 | * the keylocation for now to avoid any errors from the receive | |
4338 | * ioctl. | |
4339 | */ | |
4340 | err = nvlist_lookup_string(rcvprops, | |
4341 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), &keylocation); | |
4342 | if (err == 0) { | |
4343 | strcpy(tmp_keylocation, keylocation); | |
4344 | (void) nvlist_remove_all(rcvprops, | |
4345 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION)); | |
4346 | } | |
4347 | ||
330d06f9 | 4348 | if (flags->canmountoff) { |
60a2434b RM |
4349 | fnvlist_add_uint64(rcvprops, |
4350 | zfs_prop_to_name(ZFS_PROP_CANMOUNT), 0); | |
9c5e88b1 | 4351 | } else if (newprops) { /* nothing in rcvprops, eliminate it */ |
60a2434b | 4352 | fnvlist_free(rcvprops); |
9c5e88b1 PZ |
4353 | rcvprops = NULL; |
4354 | newprops = B_FALSE; | |
34dc7c2f | 4355 | } |
48f783de | 4356 | if (0 == nvlist_lookup_nvlist(fs, "snapprops", &lookup)) { |
60a2434b RM |
4357 | snapprops_nvlist = fnvlist_lookup_nvlist(lookup, |
4358 | snapname); | |
48f783de | 4359 | } |
9c5e88b1 PZ |
4360 | if (holds) { |
4361 | if (0 == nvlist_lookup_nvlist(fs, "snapholds", | |
4362 | &lookup)) { | |
60a2434b RM |
4363 | snapholds_nvlist = fnvlist_lookup_nvlist( |
4364 | lookup, snapname); | |
9c5e88b1 PZ |
4365 | } |
4366 | } | |
34dc7c2f BB |
4367 | } |
4368 | ||
428870ff BB |
4369 | cp = NULL; |
4370 | ||
34dc7c2f BB |
4371 | /* |
4372 | * Determine how much of the snapshot name stored in the stream | |
4373 | * we are going to tack on to the name they specified on the | |
4374 | * command line, and how much we are going to chop off. | |
4375 | * | |
4376 | * If they specified a snapshot, chop the entire name stored in | |
4377 | * the stream. | |
4378 | */ | |
330d06f9 | 4379 | if (flags->istail) { |
428870ff BB |
4380 | /* |
4381 | * A filesystem was specified with -e. We want to tack on only | |
4382 | * the tail of the sent snapshot path. | |
4383 | */ | |
4384 | if (strchr(tosnap, '@')) { | |
4385 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
4386 | "argument - snapshot not allowed with -e")); | |
43e52edd BB |
4387 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); |
4388 | goto out; | |
428870ff BB |
4389 | } |
4390 | ||
4391 | chopprefix = strrchr(sendfs, '/'); | |
4392 | ||
4393 | if (chopprefix == NULL) { | |
4394 | /* | |
4395 | * The tail is the poolname, so we need to | |
4396 | * prepend a path separator. | |
4397 | */ | |
4398 | int len = strlen(drrb->drr_toname); | |
4399 | cp = malloc(len + 2); | |
4400 | cp[0] = '/'; | |
4401 | (void) strcpy(&cp[1], drrb->drr_toname); | |
4402 | chopprefix = cp; | |
4403 | } else { | |
4404 | chopprefix = drrb->drr_toname + (chopprefix - sendfs); | |
4405 | } | |
330d06f9 | 4406 | } else if (flags->isprefix) { |
34dc7c2f | 4407 | /* |
428870ff BB |
4408 | * A filesystem was specified with -d. We want to tack on |
4409 | * everything but the first element of the sent snapshot path | |
4410 | * (all but the pool name). | |
34dc7c2f BB |
4411 | */ |
4412 | if (strchr(tosnap, '@')) { | |
4413 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
4414 | "argument - snapshot not allowed with -d")); | |
43e52edd BB |
4415 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); |
4416 | goto out; | |
34dc7c2f | 4417 | } |
428870ff BB |
4418 | |
4419 | chopprefix = strchr(drrb->drr_toname, '/'); | |
4420 | if (chopprefix == NULL) | |
4421 | chopprefix = strchr(drrb->drr_toname, '@'); | |
34dc7c2f BB |
4422 | } else if (strchr(tosnap, '@') == NULL) { |
4423 | /* | |
428870ff BB |
4424 | * If a filesystem was specified without -d or -e, we want to |
4425 | * tack on everything after the fs specified by 'zfs send'. | |
34dc7c2f | 4426 | */ |
428870ff BB |
4427 | chopprefix = drrb->drr_toname + strlen(sendfs); |
4428 | } else { | |
4429 | /* A snapshot was specified as an exact path (no -d or -e). */ | |
4430 | if (recursive) { | |
4431 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4432 | "cannot specify snapshot name for multi-snapshot " | |
4433 | "stream")); | |
43e52edd BB |
4434 | err = zfs_error(hdl, EZFS_BADSTREAM, errbuf); |
4435 | goto out; | |
428870ff BB |
4436 | } |
4437 | chopprefix = drrb->drr_toname + strlen(drrb->drr_toname); | |
34dc7c2f | 4438 | } |
428870ff BB |
4439 | |
4440 | ASSERT(strstr(drrb->drr_toname, sendfs) == drrb->drr_toname); | |
bdbd5477 | 4441 | ASSERT(chopprefix > drrb->drr_toname || strchr(sendfs, '/') == NULL); |
4442 | ASSERT(chopprefix <= drrb->drr_toname + strlen(drrb->drr_toname) || | |
4443 | strchr(sendfs, '/') == NULL); | |
428870ff BB |
4444 | ASSERT(chopprefix[0] == '/' || chopprefix[0] == '@' || |
4445 | chopprefix[0] == '\0'); | |
34dc7c2f BB |
4446 | |
4447 | /* | |
43e52edd | 4448 | * Determine name of destination snapshot. |
34dc7c2f | 4449 | */ |
45cb520b | 4450 | (void) strlcpy(destsnap, tosnap, sizeof (destsnap)); |
43e52edd | 4451 | (void) strlcat(destsnap, chopprefix, sizeof (destsnap)); |
428870ff | 4452 | free(cp); |
43e52edd BB |
4453 | if (!zfs_name_valid(destsnap, ZFS_TYPE_SNAPSHOT)) { |
4454 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); | |
4455 | goto out; | |
34dc7c2f BB |
4456 | } |
4457 | ||
4458 | /* | |
43e52edd | 4459 | * Determine the name of the origin snapshot. |
34dc7c2f | 4460 | */ |
160af771 | 4461 | if (originsnap) { |
21a4f5cc | 4462 | (void) strlcpy(origin, originsnap, sizeof (origin)); |
160af771 GM |
4463 | if (flags->verbose) |
4464 | (void) printf("using provided clone origin %s\n", | |
4465 | origin); | |
4466 | } else if (drrb->drr_flags & DRR_FLAG_CLONE) { | |
43e52edd BB |
4467 | if (guid_to_name(hdl, destsnap, |
4468 | drrb->drr_fromguid, B_FALSE, origin) != 0) { | |
34dc7c2f BB |
4469 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4470 | "local origin for clone %s does not exist"), | |
43e52edd BB |
4471 | destsnap); |
4472 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4473 | goto out; | |
34dc7c2f | 4474 | } |
330d06f9 | 4475 | if (flags->verbose) |
43e52edd | 4476 | (void) printf("found clone origin %s\n", origin); |
34dc7c2f BB |
4477 | } |
4478 | ||
196bee4c | 4479 | if ((DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
652bdc9b MA |
4480 | DMU_BACKUP_FEATURE_DEDUP)) { |
4481 | (void) fprintf(stderr, | |
196bee4c MA |
4482 | gettext("ERROR: \"zfs receive\" no longer supports " |
4483 | "deduplicated send streams. Use\n" | |
4484 | "the \"zstream redup\" command to convert this stream " | |
4485 | "to a regular,\n" | |
4486 | "non-deduplicated stream.\n")); | |
4487 | err = zfs_error(hdl, EZFS_NOTSUP, errbuf); | |
4488 | goto out; | |
652bdc9b MA |
4489 | } |
4490 | ||
47dfff3b MA |
4491 | boolean_t resuming = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4492 | DMU_BACKUP_FEATURE_RESUMING; | |
b5256303 TC |
4493 | boolean_t raw = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4494 | DMU_BACKUP_FEATURE_RAW; | |
9b840763 TC |
4495 | boolean_t embedded = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4496 | DMU_BACKUP_FEATURE_EMBED_DATA; | |
b8864a23 | 4497 | stream_wantsnewfs = (drrb->drr_fromguid == 0 || |
47dfff3b | 4498 | (drrb->drr_flags & DRR_FLAG_CLONE) || originsnap) && !resuming; |
a132c2b4 AS |
4499 | stream_resumingnewfs = (drrb->drr_fromguid == 0 || |
4500 | (drrb->drr_flags & DRR_FLAG_CLONE) || originsnap) && resuming; | |
34dc7c2f BB |
4501 | |
4502 | if (stream_wantsnewfs) { | |
4503 | /* | |
4504 | * if the parent fs does not exist, look for it based on | |
4505 | * the parent snap GUID | |
4506 | */ | |
4507 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4508 | "cannot receive new filesystem stream")); | |
4509 | ||
43e52edd BB |
4510 | (void) strcpy(name, destsnap); |
4511 | cp = strrchr(name, '/'); | |
34dc7c2f BB |
4512 | if (cp) |
4513 | *cp = '\0'; | |
4514 | if (cp && | |
43e52edd | 4515 | !zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) { |
eca7b760 | 4516 | char suffix[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4517 | (void) strcpy(suffix, strrchr(destsnap, '/')); |
4518 | if (guid_to_name(hdl, name, parent_snapguid, | |
4519 | B_FALSE, destsnap) == 0) { | |
4520 | *strchr(destsnap, '@') = '\0'; | |
4521 | (void) strcat(destsnap, suffix); | |
34dc7c2f BB |
4522 | } |
4523 | } | |
4524 | } else { | |
4525 | /* | |
ebeb6f23 AG |
4526 | * If the fs does not exist, look for it based on the |
4527 | * fromsnap GUID. | |
34dc7c2f | 4528 | */ |
ebeb6f23 AG |
4529 | if (resuming) { |
4530 | (void) snprintf(errbuf, sizeof (errbuf), | |
4531 | dgettext(TEXT_DOMAIN, | |
4532 | "cannot receive resume stream")); | |
4533 | } else { | |
4534 | (void) snprintf(errbuf, sizeof (errbuf), | |
4535 | dgettext(TEXT_DOMAIN, | |
4536 | "cannot receive incremental stream")); | |
4537 | } | |
34dc7c2f | 4538 | |
43e52edd BB |
4539 | (void) strcpy(name, destsnap); |
4540 | *strchr(name, '@') = '\0'; | |
34dc7c2f | 4541 | |
428870ff BB |
4542 | /* |
4543 | * If the exact receive path was specified and this is the | |
4544 | * topmost path in the stream, then if the fs does not exist we | |
4545 | * should look no further. | |
4546 | */ | |
330d06f9 | 4547 | if ((flags->isprefix || (*(chopprefix = drrb->drr_toname + |
428870ff | 4548 | strlen(sendfs)) != '\0' && *chopprefix != '@')) && |
43e52edd | 4549 | !zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) { |
eca7b760 | 4550 | char snap[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4551 | (void) strcpy(snap, strchr(destsnap, '@')); |
4552 | if (guid_to_name(hdl, name, drrb->drr_fromguid, | |
4553 | B_FALSE, destsnap) == 0) { | |
4554 | *strchr(destsnap, '@') = '\0'; | |
4555 | (void) strcat(destsnap, snap); | |
34dc7c2f BB |
4556 | } |
4557 | } | |
4558 | } | |
4559 | ||
43e52edd BB |
4560 | (void) strcpy(name, destsnap); |
4561 | *strchr(name, '@') = '\0'; | |
34dc7c2f | 4562 | |
30af21b0 PD |
4563 | redacted = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4564 | DMU_BACKUP_FEATURE_REDACTED; | |
4565 | ||
43e52edd BB |
4566 | if (zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) { |
4567 | zfs_cmd_t zc = {"\0"}; | |
34dc7c2f | 4568 | zfs_handle_t *zhp; |
4a385862 | 4569 | boolean_t encrypted; |
428870ff | 4570 | |
43e52edd BB |
4571 | (void) strcpy(zc.zc_name, name); |
4572 | ||
34dc7c2f | 4573 | /* |
47dfff3b MA |
4574 | * Destination fs exists. It must be one of these cases: |
4575 | * - an incremental send stream | |
4576 | * - the stream specifies a new fs (full stream or clone) | |
4577 | * and they want us to blow away the existing fs (and | |
4578 | * have therefore specified -F and removed any snapshots) | |
4579 | * - we are resuming a failed receive. | |
34dc7c2f | 4580 | */ |
34dc7c2f | 4581 | if (stream_wantsnewfs) { |
d8d418ff | 4582 | boolean_t is_volume = drrb->drr_type == DMU_OST_ZVOL; |
330d06f9 | 4583 | if (!flags->force) { |
34dc7c2f BB |
4584 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4585 | "destination '%s' exists\n" | |
43e52edd BB |
4586 | "must specify -F to overwrite it"), name); |
4587 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
4588 | goto out; | |
34dc7c2f | 4589 | } |
b834b58a | 4590 | if (zfs_ioctl(hdl, ZFS_IOC_SNAPSHOT_LIST_NEXT, |
34dc7c2f | 4591 | &zc) == 0) { |
34dc7c2f BB |
4592 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4593 | "destination has snapshots (eg. %s)\n" | |
4594 | "must destroy them to overwrite it"), | |
b53cb02d | 4595 | zc.zc_name); |
43e52edd BB |
4596 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); |
4597 | goto out; | |
34dc7c2f | 4598 | } |
d8d418ff | 4599 | if (is_volume && strrchr(name, '/') == NULL) { |
4600 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4601 | "destination %s is the root dataset\n" | |
4602 | "cannot overwrite with a ZVOL"), | |
4603 | name); | |
4604 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
4605 | goto out; | |
4606 | } | |
4607 | if (is_volume && | |
b834b58a | 4608 | zfs_ioctl(hdl, ZFS_IOC_DATASET_LIST_NEXT, |
d8d418ff | 4609 | &zc) == 0) { |
4610 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4611 | "destination has children (eg. %s)\n" | |
4612 | "cannot overwrite with a ZVOL"), | |
4613 | zc.zc_name); | |
4614 | err = zfs_error(hdl, EZFS_WRONG_PARENT, errbuf); | |
4615 | goto out; | |
4616 | } | |
34dc7c2f BB |
4617 | } |
4618 | ||
43e52edd | 4619 | if ((zhp = zfs_open(hdl, name, |
34dc7c2f | 4620 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) == NULL) { |
43e52edd BB |
4621 | err = -1; |
4622 | goto out; | |
34dc7c2f BB |
4623 | } |
4624 | ||
4625 | if (stream_wantsnewfs && | |
4626 | zhp->zfs_dmustats.dds_origin[0]) { | |
34dc7c2f BB |
4627 | zfs_close(zhp); |
4628 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4629 | "destination '%s' is a clone\n" | |
43e52edd BB |
4630 | "must destroy it to overwrite it"), name); |
4631 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
4632 | goto out; | |
34dc7c2f BB |
4633 | } |
4634 | ||
b5256303 | 4635 | /* |
4a385862 | 4636 | * Raw sends can not be performed as an incremental on top |
78595377 | 4637 | * of existing unencrypted datasets. zfs recv -F can't be |
4a385862 TC |
4638 | * used to blow away an existing encrypted filesystem. This |
4639 | * is because it would require the dsl dir to point to the | |
4640 | * new key (or lack of a key) and the old key at the same | |
4641 | * time. The -F flag may still be used for deleting | |
4642 | * intermediate snapshots that would otherwise prevent the | |
4643 | * receive from working. | |
b5256303 | 4644 | */ |
4a385862 TC |
4645 | encrypted = zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != |
4646 | ZIO_CRYPT_OFF; | |
4647 | if (!stream_wantsnewfs && !encrypted && raw) { | |
b5256303 TC |
4648 | zfs_close(zhp); |
4649 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4a385862 TC |
4650 | "cannot perform raw receive on top of " |
4651 | "existing unencrypted dataset")); | |
b5256303 TC |
4652 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); |
4653 | goto out; | |
4654 | } | |
4655 | ||
4a385862 TC |
4656 | if (stream_wantsnewfs && flags->force && |
4657 | ((raw && !encrypted) || encrypted)) { | |
4658 | zfs_close(zhp); | |
4659 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4660 | "zfs receive -F cannot be used to destroy an " | |
4661 | "encrypted filesystem or overwrite an " | |
4662 | "unencrypted one with an encrypted one")); | |
4663 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); | |
4664 | goto out; | |
4665 | } | |
b5256303 | 4666 | |
330d06f9 | 4667 | if (!flags->dryrun && zhp->zfs_type == ZFS_TYPE_FILESYSTEM && |
a132c2b4 | 4668 | (stream_wantsnewfs || stream_resumingnewfs)) { |
34dc7c2f | 4669 | /* We can't do online recv in this case */ |
a57d3d45 MZ |
4670 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
4671 | flags->forceunmount ? MS_FORCE : 0); | |
34dc7c2f | 4672 | if (clp == NULL) { |
45d1cae3 | 4673 | zfs_close(zhp); |
43e52edd BB |
4674 | err = -1; |
4675 | goto out; | |
34dc7c2f BB |
4676 | } |
4677 | if (changelist_prefix(clp) != 0) { | |
4678 | changelist_free(clp); | |
45d1cae3 | 4679 | zfs_close(zhp); |
43e52edd BB |
4680 | err = -1; |
4681 | goto out; | |
34dc7c2f BB |
4682 | } |
4683 | } | |
47dfff3b MA |
4684 | |
4685 | /* | |
4686 | * If we are resuming a newfs, set newfs here so that we will | |
4687 | * mount it if the recv succeeds this time. We can tell | |
4688 | * that it was a newfs on the first recv because the fs | |
4689 | * itself will be inconsistent (if the fs existed when we | |
4690 | * did the first recv, we would have received it into | |
4691 | * .../%recv). | |
4692 | */ | |
4693 | if (resuming && zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT)) | |
4694 | newfs = B_TRUE; | |
4695 | ||
a3eeab2d | 4696 | /* we want to know if we're zoned when validating -o|-x props */ |
4697 | zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); | |
4698 | ||
c03f0470 | 4699 | /* may need this info later, get it now we have zhp around */ |
4700 | if (zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, NULL, 0, | |
4701 | NULL, NULL, 0, B_TRUE) == 0) | |
4702 | hastoken = B_TRUE; | |
4703 | ||
a3eeab2d | 4704 | /* gather existing properties on destination */ |
4705 | origprops = fnvlist_alloc(); | |
4706 | fnvlist_merge(origprops, zhp->zfs_props); | |
4707 | fnvlist_merge(origprops, zhp->zfs_user_props); | |
4708 | ||
34dc7c2f BB |
4709 | zfs_close(zhp); |
4710 | } else { | |
b5256303 TC |
4711 | zfs_handle_t *zhp; |
4712 | ||
34dc7c2f BB |
4713 | /* |
4714 | * Destination filesystem does not exist. Therefore we better | |
4715 | * be creating a new filesystem (either from a full backup, or | |
4716 | * a clone). It would therefore be invalid if the user | |
4717 | * specified only the pool name (i.e. if the destination name | |
4718 | * contained no slash character). | |
4719 | */ | |
a64f903b GN |
4720 | cp = strrchr(name, '/'); |
4721 | ||
4722 | if (!stream_wantsnewfs || cp == NULL) { | |
34dc7c2f | 4723 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
43e52edd BB |
4724 | "destination '%s' does not exist"), name); |
4725 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4726 | goto out; | |
34dc7c2f BB |
4727 | } |
4728 | ||
4729 | /* | |
4730 | * Trim off the final dataset component so we perform the | |
4731 | * recvbackup ioctl to the filesystems's parent. | |
4732 | */ | |
4733 | *cp = '\0'; | |
4734 | ||
330d06f9 | 4735 | if (flags->isprefix && !flags->istail && !flags->dryrun && |
43e52edd BB |
4736 | create_parents(hdl, destsnap, strlen(tosnap)) != 0) { |
4737 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); | |
4738 | goto out; | |
34dc7c2f BB |
4739 | } |
4740 | ||
d8d418ff | 4741 | /* validate parent */ |
4742 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); | |
4743 | if (zhp == NULL) { | |
4744 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); | |
4745 | goto out; | |
4746 | } | |
4747 | if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { | |
4748 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4749 | "parent '%s' is not a filesystem"), name); | |
4750 | err = zfs_error(hdl, EZFS_WRONG_PARENT, errbuf); | |
4751 | zfs_close(zhp); | |
4752 | goto out; | |
4753 | } | |
4754 | ||
d8d418ff | 4755 | zfs_close(zhp); |
b5256303 | 4756 | |
34dc7c2f | 4757 | newfs = B_TRUE; |
b5256303 | 4758 | *cp = '/'; |
34dc7c2f BB |
4759 | } |
4760 | ||
330d06f9 | 4761 | if (flags->verbose) { |
34dc7c2f | 4762 | (void) printf("%s %s stream of %s into %s\n", |
330d06f9 | 4763 | flags->dryrun ? "would receive" : "receiving", |
34dc7c2f | 4764 | drrb->drr_fromguid ? "incremental" : "full", |
43e52edd | 4765 | drrb->drr_toname, destsnap); |
34dc7c2f BB |
4766 | (void) fflush(stdout); |
4767 | } | |
4768 | ||
bb61cc31 TC |
4769 | /* |
4770 | * If this is the top-level dataset, record it so we can use it | |
4771 | * for recursive operations later. | |
4772 | */ | |
4773 | if (top_zfs != NULL && | |
4774 | (*top_zfs == NULL || strcmp(*top_zfs, name) == 0)) { | |
bee7e4ff | 4775 | toplevel = B_TRUE; |
bb61cc31 TC |
4776 | if (*top_zfs == NULL) |
4777 | *top_zfs = zfs_strdup(hdl, name); | |
4778 | } | |
4779 | ||
a3eeab2d | 4780 | if (drrb->drr_type == DMU_OST_ZVOL) { |
4781 | type = ZFS_TYPE_VOLUME; | |
4782 | } else if (drrb->drr_type == DMU_OST_ZFS) { | |
4783 | type = ZFS_TYPE_FILESYSTEM; | |
4784 | } else { | |
4785 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4786 | "invalid record type: 0x%d"), drrb->drr_type); | |
4787 | err = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
4788 | goto out; | |
4789 | } | |
d9c460a0 TC |
4790 | if ((err = zfs_setup_cmdline_props(hdl, type, name, zoned, recursive, |
4791 | stream_wantsnewfs, raw, toplevel, rcvprops, cmdprops, origprops, | |
4792 | &oxprops, &wkeydata, &wkeylen, errbuf)) != 0) | |
a3eeab2d | 4793 | goto out; |
4794 | ||
da689887 TC |
4795 | /* |
4796 | * When sending with properties (zfs send -p), the encryption property | |
4797 | * is not included because it is a SETONCE property and therefore | |
4798 | * treated as read only. However, we are always able to determine its | |
4799 | * value because raw sends will include it in the DRR_BDEGIN payload | |
4800 | * and non-raw sends with properties are not allowed for encrypted | |
4801 | * datasets. Therefore, if this is a non-raw properties stream, we can | |
4802 | * infer that the value should be ZIO_CRYPT_OFF and manually add that | |
4803 | * to the received properties. | |
4804 | */ | |
4805 | if (stream_wantsnewfs && !raw && rcvprops != NULL && | |
4806 | !nvlist_exists(cmdprops, zfs_prop_to_name(ZFS_PROP_ENCRYPTION))) { | |
4807 | if (oxprops == NULL) | |
4808 | oxprops = fnvlist_alloc(); | |
4809 | fnvlist_add_uint64(oxprops, | |
4810 | zfs_prop_to_name(ZFS_PROP_ENCRYPTION), ZIO_CRYPT_OFF); | |
4811 | } | |
4812 | ||
ee6615e0 I |
4813 | if (flags->dryrun) { |
4814 | void *buf = zfs_alloc(hdl, SPA_MAXBLOCKSIZE); | |
4815 | ||
4816 | /* | |
4817 | * We have read the DRR_BEGIN record, but we have | |
4818 | * not yet read the payload. For non-dryrun sends | |
4819 | * this will be done by the kernel, so we must | |
4820 | * emulate that here, before attempting to read | |
4821 | * more records. | |
4822 | */ | |
4823 | err = recv_read(hdl, infd, buf, drr->drr_payloadlen, | |
4824 | flags->byteswap, NULL); | |
4825 | free(buf); | |
4826 | if (err != 0) | |
4827 | goto out; | |
4828 | ||
4829 | err = recv_skip(hdl, infd, flags->byteswap); | |
4830 | goto out; | |
4831 | } | |
4832 | ||
d9c460a0 TC |
4833 | err = ioctl_err = lzc_receive_with_cmdprops(destsnap, rcvprops, |
4834 | oxprops, wkeydata, wkeylen, origin, flags->force, flags->resumable, | |
196bee4c MA |
4835 | raw, infd, drr_noswap, -1, &read_bytes, &errflags, |
4836 | NULL, &prop_errors); | |
43e52edd BB |
4837 | ioctl_errno = ioctl_err; |
4838 | prop_errflags = errflags; | |
428870ff BB |
4839 | |
4840 | if (err == 0) { | |
428870ff BB |
4841 | nvpair_t *prop_err = NULL; |
4842 | ||
4843 | while ((prop_err = nvlist_next_nvpair(prop_errors, | |
4844 | prop_err)) != NULL) { | |
4845 | char tbuf[1024]; | |
4846 | zfs_prop_t prop; | |
4847 | int intval; | |
4848 | ||
4849 | prop = zfs_name_to_prop(nvpair_name(prop_err)); | |
4850 | (void) nvpair_value_int32(prop_err, &intval); | |
4851 | if (strcmp(nvpair_name(prop_err), | |
4852 | ZPROP_N_MORE_ERRORS) == 0) { | |
4853 | trunc_prop_errs(intval); | |
4854 | break; | |
671c9354 DM |
4855 | } else if (snapname == NULL || finalsnap == NULL || |
4856 | strcmp(finalsnap, snapname) == 0 || | |
4857 | strcmp(nvpair_name(prop_err), | |
4858 | zfs_prop_to_name(ZFS_PROP_REFQUOTA)) != 0) { | |
4859 | /* | |
4860 | * Skip the special case of, for example, | |
4861 | * "refquota", errors on intermediate | |
4862 | * snapshots leading up to a final one. | |
4863 | * That's why we have all of the checks above. | |
4864 | * | |
4865 | * See zfs_ioctl.c's extract_delay_props() for | |
4866 | * a list of props which can fail on | |
4867 | * intermediate snapshots, but shouldn't | |
4868 | * affect the overall receive. | |
4869 | */ | |
428870ff BB |
4870 | (void) snprintf(tbuf, sizeof (tbuf), |
4871 | dgettext(TEXT_DOMAIN, | |
4872 | "cannot receive %s property on %s"), | |
43e52edd | 4873 | nvpair_name(prop_err), name); |
428870ff BB |
4874 | zfs_setprop_error(hdl, prop, intval, tbuf); |
4875 | } | |
4876 | } | |
428870ff BB |
4877 | } |
4878 | ||
b128c09f | 4879 | if (err == 0 && snapprops_nvlist) { |
43e52edd | 4880 | zfs_cmd_t zc = {"\0"}; |
b128c09f | 4881 | |
43e52edd BB |
4882 | (void) strcpy(zc.zc_name, destsnap); |
4883 | zc.zc_cookie = B_TRUE; /* received */ | |
4884 | if (zcmd_write_src_nvlist(hdl, &zc, snapprops_nvlist) == 0) { | |
4885 | (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
4886 | zcmd_free_nvlists(&zc); | |
b128c09f BB |
4887 | } |
4888 | } | |
9c5e88b1 PZ |
4889 | if (err == 0 && snapholds_nvlist) { |
4890 | nvpair_t *pair; | |
4891 | nvlist_t *holds, *errors = NULL; | |
4892 | int cleanup_fd = -1; | |
4893 | ||
4894 | VERIFY(0 == nvlist_alloc(&holds, 0, KM_SLEEP)); | |
4895 | for (pair = nvlist_next_nvpair(snapholds_nvlist, NULL); | |
4896 | pair != NULL; | |
4897 | pair = nvlist_next_nvpair(snapholds_nvlist, pair)) { | |
60a2434b | 4898 | fnvlist_add_string(holds, destsnap, nvpair_name(pair)); |
9c5e88b1 PZ |
4899 | } |
4900 | (void) lzc_hold(holds, cleanup_fd, &errors); | |
60a2434b RM |
4901 | fnvlist_free(snapholds_nvlist); |
4902 | fnvlist_free(holds); | |
9c5e88b1 | 4903 | } |
b128c09f | 4904 | |
428870ff | 4905 | if (err && (ioctl_errno == ENOENT || ioctl_errno == EEXIST)) { |
34dc7c2f BB |
4906 | /* |
4907 | * It may be that this snapshot already exists, | |
4908 | * in which case we want to consume & ignore it | |
4909 | * rather than failing. | |
4910 | */ | |
4911 | avl_tree_t *local_avl; | |
4912 | nvlist_t *local_nv, *fs; | |
43e52edd | 4913 | cp = strchr(destsnap, '@'); |
34dc7c2f BB |
4914 | |
4915 | /* | |
4916 | * XXX Do this faster by just iterating over snaps in | |
4917 | * this fs. Also if zc_value does not exist, we will | |
4918 | * get a strange "does not exist" error message. | |
4919 | */ | |
4920 | *cp = '\0'; | |
b5256303 | 4921 | if (gather_nvlist(hdl, destsnap, NULL, NULL, B_FALSE, B_TRUE, |
099fa7e4 PCG |
4922 | B_FALSE, B_FALSE, B_FALSE, B_FALSE, B_FALSE, B_FALSE, |
4923 | B_TRUE, &local_nv, &local_avl) == 0) { | |
34dc7c2f BB |
4924 | *cp = '@'; |
4925 | fs = fsavl_find(local_avl, drrb->drr_toguid, NULL); | |
4926 | fsavl_destroy(local_avl); | |
60a2434b | 4927 | fnvlist_free(local_nv); |
34dc7c2f BB |
4928 | |
4929 | if (fs != NULL) { | |
330d06f9 | 4930 | if (flags->verbose) { |
34dc7c2f | 4931 | (void) printf("snap %s already exists; " |
43e52edd | 4932 | "ignoring\n", destsnap); |
34dc7c2f | 4933 | } |
428870ff | 4934 | err = ioctl_err = recv_skip(hdl, infd, |
330d06f9 | 4935 | flags->byteswap); |
34dc7c2f BB |
4936 | } |
4937 | } | |
4938 | *cp = '@'; | |
4939 | } | |
4940 | ||
34dc7c2f BB |
4941 | if (ioctl_err != 0) { |
4942 | switch (ioctl_errno) { | |
4943 | case ENODEV: | |
43e52edd | 4944 | cp = strchr(destsnap, '@'); |
34dc7c2f BB |
4945 | *cp = '\0'; |
4946 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4947 | "most recent snapshot of %s does not\n" | |
43e52edd | 4948 | "match incremental source"), destsnap); |
34dc7c2f BB |
4949 | (void) zfs_error(hdl, EZFS_BADRESTORE, errbuf); |
4950 | *cp = '@'; | |
4951 | break; | |
4952 | case ETXTBSY: | |
4953 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4954 | "destination %s has been modified\n" | |
43e52edd | 4955 | "since most recent snapshot"), name); |
34dc7c2f BB |
4956 | (void) zfs_error(hdl, EZFS_BADRESTORE, errbuf); |
4957 | break; | |
b5256303 TC |
4958 | case EACCES: |
4959 | if (raw && stream_wantsnewfs) { | |
4960 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4961 | "failed to create encryption key")); | |
4962 | } else if (raw && !stream_wantsnewfs) { | |
4963 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4964 | "encryption key does not match " | |
4965 | "existing key")); | |
4966 | } else { | |
4967 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4968 | "inherited key must be loaded")); | |
4969 | } | |
4970 | (void) zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf); | |
4971 | break; | |
34dc7c2f | 4972 | case EEXIST: |
43e52edd | 4973 | cp = strchr(destsnap, '@'); |
34dc7c2f BB |
4974 | if (newfs) { |
4975 | /* it's the containing fs that exists */ | |
4976 | *cp = '\0'; | |
4977 | } | |
4978 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4979 | "destination already exists")); | |
4980 | (void) zfs_error_fmt(hdl, EZFS_EXISTS, | |
4981 | dgettext(TEXT_DOMAIN, "cannot restore to %s"), | |
43e52edd | 4982 | destsnap); |
34dc7c2f BB |
4983 | *cp = '@'; |
4984 | break; | |
4985 | case EINVAL: | |
2ba59fa9 | 4986 | if (flags->resumable) { |
43e52edd BB |
4987 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4988 | "kernel modules must be upgraded to " | |
4989 | "receive this stream.")); | |
2ba59fa9 | 4990 | } else if (embedded && !raw) { |
9b840763 TC |
4991 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4992 | "incompatible embedded data stream " | |
4993 | "feature with encrypted receive.")); | |
2ba59fa9 | 4994 | } |
34dc7c2f BB |
4995 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); |
4996 | break; | |
4997 | case ECKSUM: | |
7145123b PD |
4998 | case ZFS_ERR_STREAM_TRUNCATED: |
4999 | recv_ecksum_set_aux(hdl, destsnap, flags->resumable, | |
5000 | ioctl_err == ECKSUM); | |
34dc7c2f BB |
5001 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); |
5002 | break; | |
7bcb7f08 MA |
5003 | case ZFS_ERR_STREAM_LARGE_BLOCK_MISMATCH: |
5004 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5005 | "incremental send stream requires -L " | |
5006 | "(--large-block), to match previous receive.")); | |
5007 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5008 | break; | |
428870ff BB |
5009 | case ENOTSUP: |
5010 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5011 | "pool must be upgraded to receive this stream.")); | |
5012 | (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
5013 | break; | |
5014 | case EDQUOT: | |
5015 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
c03f0470 | 5016 | "destination %s space quota exceeded."), name); |
330d06f9 | 5017 | (void) zfs_error(hdl, EZFS_NOSPC, errbuf); |
428870ff | 5018 | break; |
f00ab3f2 TC |
5019 | case ZFS_ERR_FROM_IVSET_GUID_MISSING: |
5020 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
73c25a78 | 5021 | "IV set guid missing. See errata %u at " |
a2f944a1 RM |
5022 | "https://openzfs.github.io/openzfs-docs/msg/" |
5023 | "ZFS-8000-ER."), | |
f00ab3f2 TC |
5024 | ZPOOL_ERRATA_ZOL_8308_ENCRYPTION); |
5025 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5026 | break; | |
5027 | case ZFS_ERR_FROM_IVSET_GUID_MISMATCH: | |
5028 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5029 | "IV set guid mismatch. See the 'zfs receive' " | |
5030 | "man page section\n discussing the limitations " | |
5031 | "of raw encrypted send streams.")); | |
5032 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5033 | break; | |
caf9dd20 BB |
5034 | case ZFS_ERR_SPILL_BLOCK_FLAG_MISSING: |
5035 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5036 | "Spill block flag missing for raw send.\n" | |
5037 | "The zfs software on the sending system must " | |
5038 | "be updated.")); | |
5039 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5040 | break; | |
c03f0470 | 5041 | case EBUSY: |
5042 | if (hastoken) { | |
5043 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5044 | "destination %s contains " | |
5045 | "partially-complete state from " | |
5046 | "\"zfs receive -s\"."), name); | |
5047 | (void) zfs_error(hdl, EZFS_BUSY, errbuf); | |
5048 | break; | |
5049 | } | |
9a70e97f | 5050 | zfs_fallthrough; |
34dc7c2f BB |
5051 | default: |
5052 | (void) zfs_standard_error(hdl, ioctl_errno, errbuf); | |
5053 | } | |
5054 | } | |
5055 | ||
5056 | /* | |
428870ff BB |
5057 | * Mount the target filesystem (if created). Also mount any |
5058 | * children of the target filesystem if we did a replication | |
5059 | * receive (indicated by stream_avl being non-NULL). | |
34dc7c2f | 5060 | */ |
34dc7c2f | 5061 | if (clp) { |
89d43feb GM |
5062 | if (!flags->nomount) |
5063 | err |= changelist_postfix(clp); | |
34dc7c2f BB |
5064 | changelist_free(clp); |
5065 | } | |
5066 | ||
bb61cc31 TC |
5067 | if ((newfs || stream_avl) && type == ZFS_TYPE_FILESYSTEM && !redacted) |
5068 | flags->domount = B_TRUE; | |
5069 | ||
428870ff BB |
5070 | if (prop_errflags & ZPROP_ERR_NOCLEAR) { |
5071 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: " | |
43e52edd | 5072 | "failed to clear unreceived properties on %s"), name); |
428870ff BB |
5073 | (void) fprintf(stderr, "\n"); |
5074 | } | |
5075 | if (prop_errflags & ZPROP_ERR_NORESTORE) { | |
5076 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: " | |
43e52edd | 5077 | "failed to restore original properties on %s"), name); |
428870ff BB |
5078 | (void) fprintf(stderr, "\n"); |
5079 | } | |
5080 | ||
43e52edd BB |
5081 | if (err || ioctl_err) { |
5082 | err = -1; | |
5083 | goto out; | |
5084 | } | |
572e2857 | 5085 | |
330d06f9 | 5086 | if (flags->verbose) { |
34dc7c2f BB |
5087 | char buf1[64]; |
5088 | char buf2[64]; | |
43e52edd | 5089 | uint64_t bytes = read_bytes; |
67de71e6 AZ |
5090 | struct timespec delta; |
5091 | clock_gettime(CLOCK_MONOTONIC_RAW, &delta); | |
5092 | if (begin_time.tv_nsec > delta.tv_nsec) { | |
5093 | delta.tv_nsec = | |
5094 | 1000000000 + delta.tv_nsec - begin_time.tv_nsec; | |
5095 | delta.tv_sec -= 1; | |
5096 | } else | |
5097 | delta.tv_nsec -= begin_time.tv_nsec; | |
5098 | delta.tv_sec -= begin_time.tv_sec; | |
5099 | if (delta.tv_sec == 0 && delta.tv_nsec == 0) | |
5100 | delta.tv_nsec = 1; | |
5101 | double delta_f = delta.tv_sec + (delta.tv_nsec / 1e9); | |
e7fbeb60 | 5102 | zfs_nicebytes(bytes, buf1, sizeof (buf1)); |
67de71e6 | 5103 | zfs_nicebytes(bytes / delta_f, buf2, sizeof (buf2)); |
34dc7c2f | 5104 | |
67de71e6 AZ |
5105 | (void) printf("received %s stream in %.2f seconds (%s/sec)\n", |
5106 | buf1, delta_f, buf2); | |
34dc7c2f BB |
5107 | } |
5108 | ||
43e52edd BB |
5109 | err = 0; |
5110 | out: | |
5111 | if (prop_errors != NULL) | |
60a2434b | 5112 | fnvlist_free(prop_errors); |
43e52edd | 5113 | |
b5256303 | 5114 | if (tmp_keylocation[0] != '\0') { |
60a2434b RM |
5115 | fnvlist_add_string(rcvprops, |
5116 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), tmp_keylocation); | |
b5256303 TC |
5117 | } |
5118 | ||
43e52edd | 5119 | if (newprops) |
60a2434b | 5120 | fnvlist_free(rcvprops); |
a3eeab2d | 5121 | |
60a2434b RM |
5122 | fnvlist_free(oxprops); |
5123 | fnvlist_free(origprops); | |
43e52edd BB |
5124 | |
5125 | return (err); | |
34dc7c2f BB |
5126 | } |
5127 | ||
a3eeab2d | 5128 | /* |
5129 | * Check properties we were asked to override (both -o|-x) | |
5130 | */ | |
5131 | static boolean_t | |
5132 | zfs_receive_checkprops(libzfs_handle_t *hdl, nvlist_t *props, | |
5133 | const char *errbuf) | |
5134 | { | |
ae07fc13 | 5135 | nvpair_t *nvp = NULL; |
a3eeab2d | 5136 | zfs_prop_t prop; |
5137 | const char *name; | |
5138 | ||
a3eeab2d | 5139 | while ((nvp = nvlist_next_nvpair(props, nvp)) != NULL) { |
5140 | name = nvpair_name(nvp); | |
5141 | prop = zfs_name_to_prop(name); | |
5142 | ||
5143 | if (prop == ZPROP_INVAL) { | |
5144 | if (!zfs_prop_user(name)) { | |
5145 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
7633c0ae | 5146 | "%s: invalid property '%s'"), errbuf, name); |
a3eeab2d | 5147 | return (B_FALSE); |
5148 | } | |
5149 | continue; | |
5150 | } | |
5151 | /* | |
5152 | * "origin" is readonly but is used to receive datasets as | |
5153 | * clones so we don't raise an error here | |
5154 | */ | |
5155 | if (prop == ZFS_PROP_ORIGIN) | |
5156 | continue; | |
5157 | ||
d9c460a0 TC |
5158 | /* encryption params have their own verification later */ |
5159 | if (prop == ZFS_PROP_ENCRYPTION || | |
5160 | zfs_prop_encryption_key_param(prop)) | |
5161 | continue; | |
5162 | ||
a3eeab2d | 5163 | /* |
5164 | * cannot override readonly, set-once and other specific | |
5165 | * settable properties | |
5166 | */ | |
5167 | if (zfs_prop_readonly(prop) || prop == ZFS_PROP_VERSION || | |
5168 | prop == ZFS_PROP_VOLSIZE) { | |
5169 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
7633c0ae | 5170 | "%s: invalid property '%s'"), errbuf, name); |
a3eeab2d | 5171 | return (B_FALSE); |
5172 | } | |
5173 | } | |
5174 | ||
5175 | return (B_TRUE); | |
5176 | } | |
5177 | ||
b128c09f | 5178 | static int |
fcff0f35 PD |
5179 | zfs_receive_impl(libzfs_handle_t *hdl, const char *tosnap, |
5180 | const char *originsnap, recvflags_t *flags, int infd, const char *sendfs, | |
196bee4c MA |
5181 | nvlist_t *stream_nv, avl_tree_t *stream_avl, char **top_zfs, |
5182 | const char *finalsnap, nvlist_t *cmdprops) | |
34dc7c2f BB |
5183 | { |
5184 | int err; | |
5185 | dmu_replay_record_t drr, drr_noswap; | |
5186 | struct drr_begin *drrb = &drr.drr_u.drr_begin; | |
5187 | char errbuf[1024]; | |
2598c001 | 5188 | zio_cksum_t zcksum = { { 0 } }; |
428870ff BB |
5189 | uint64_t featureflags; |
5190 | int hdrtype; | |
34dc7c2f BB |
5191 | |
5192 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
5193 | "cannot receive")); | |
5194 | ||
a3eeab2d | 5195 | /* check cmdline props, raise an error if they cannot be received */ |
7633c0ae | 5196 | if (!zfs_receive_checkprops(hdl, cmdprops, errbuf)) |
ae07fc13 | 5197 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); |
a3eeab2d | 5198 | |
330d06f9 | 5199 | if (flags->isprefix && |
34dc7c2f BB |
5200 | !zfs_dataset_exists(hdl, tosnap, ZFS_TYPE_DATASET)) { |
5201 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "specified fs " | |
5202 | "(%s) does not exist"), tosnap); | |
5203 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
5204 | } | |
fcff0f35 PD |
5205 | if (originsnap && |
5206 | !zfs_dataset_exists(hdl, originsnap, ZFS_TYPE_DATASET)) { | |
5207 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "specified origin fs " | |
5208 | "(%s) does not exist"), originsnap); | |
5209 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
5210 | } | |
34dc7c2f BB |
5211 | |
5212 | /* read in the BEGIN record */ | |
5213 | if (0 != (err = recv_read(hdl, infd, &drr, sizeof (drr), B_FALSE, | |
5214 | &zcksum))) | |
5215 | return (err); | |
5216 | ||
5217 | if (drr.drr_type == DRR_END || drr.drr_type == BSWAP_32(DRR_END)) { | |
5218 | /* It's the double end record at the end of a package */ | |
5219 | return (ENODATA); | |
5220 | } | |
5221 | ||
5222 | /* the kernel needs the non-byteswapped begin record */ | |
5223 | drr_noswap = drr; | |
5224 | ||
330d06f9 | 5225 | flags->byteswap = B_FALSE; |
34dc7c2f BB |
5226 | if (drrb->drr_magic == BSWAP_64(DMU_BACKUP_MAGIC)) { |
5227 | /* | |
5228 | * We computed the checksum in the wrong byteorder in | |
5229 | * recv_read() above; do it again correctly. | |
5230 | */ | |
5231 | bzero(&zcksum, sizeof (zio_cksum_t)); | |
5232 | fletcher_4_incremental_byteswap(&drr, sizeof (drr), &zcksum); | |
330d06f9 | 5233 | flags->byteswap = B_TRUE; |
34dc7c2f BB |
5234 | |
5235 | drr.drr_type = BSWAP_32(drr.drr_type); | |
5236 | drr.drr_payloadlen = BSWAP_32(drr.drr_payloadlen); | |
5237 | drrb->drr_magic = BSWAP_64(drrb->drr_magic); | |
428870ff | 5238 | drrb->drr_versioninfo = BSWAP_64(drrb->drr_versioninfo); |
34dc7c2f BB |
5239 | drrb->drr_creation_time = BSWAP_64(drrb->drr_creation_time); |
5240 | drrb->drr_type = BSWAP_32(drrb->drr_type); | |
5241 | drrb->drr_flags = BSWAP_32(drrb->drr_flags); | |
5242 | drrb->drr_toguid = BSWAP_64(drrb->drr_toguid); | |
5243 | drrb->drr_fromguid = BSWAP_64(drrb->drr_fromguid); | |
5244 | } | |
5245 | ||
5246 | if (drrb->drr_magic != DMU_BACKUP_MAGIC || drr.drr_type != DRR_BEGIN) { | |
5247 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
5248 | "stream (bad magic number)")); | |
5249 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); | |
5250 | } | |
5251 | ||
428870ff BB |
5252 | featureflags = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo); |
5253 | hdrtype = DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo); | |
5254 | ||
5255 | if (!DMU_STREAM_SUPPORTED(featureflags) || | |
5256 | (hdrtype != DMU_SUBSTREAM && hdrtype != DMU_COMPOUNDSTREAM)) { | |
a2ffc0e0 RE |
5257 | /* |
5258 | * Let's be explicit about this one, since rather than | |
5259 | * being a new feature we can't know, it's an old | |
5260 | * feature we dropped. | |
5261 | */ | |
5262 | if (featureflags & DMU_BACKUP_FEATURE_DEDUP) { | |
5263 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5264 | "stream has deprecated feature: dedup, try " | |
5265 | "'zstream redup [send in a file] | zfs recv " | |
5266 | "[...]'")); | |
5267 | } else { | |
5268 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5269 | "stream has unsupported feature, feature flags = " | |
5270 | "%llx (unknown flags = %llx)"), | |
5271 | (u_longlong_t)featureflags, | |
5272 | (u_longlong_t)((featureflags) & | |
5273 | ~DMU_BACKUP_FEATURE_MASK)); | |
5274 | } | |
428870ff BB |
5275 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); |
5276 | } | |
5277 | ||
9c5e88b1 | 5278 | /* Holds feature is set once in the compound stream header. */ |
c618f87c | 5279 | if (featureflags & DMU_BACKUP_FEATURE_HOLDS) |
9c5e88b1 PZ |
5280 | flags->holds = B_TRUE; |
5281 | ||
34dc7c2f BB |
5282 | if (strchr(drrb->drr_toname, '@') == NULL) { |
5283 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
5284 | "stream (bad snapshot name)")); | |
5285 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); | |
5286 | } | |
5287 | ||
428870ff | 5288 | if (DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == DMU_SUBSTREAM) { |
eca7b760 | 5289 | char nonpackage_sendfs[ZFS_MAX_DATASET_NAME_LEN]; |
428870ff BB |
5290 | if (sendfs == NULL) { |
5291 | /* | |
5292 | * We were not called from zfs_receive_package(). Get | |
5293 | * the fs specified by 'zfs send'. | |
5294 | */ | |
5295 | char *cp; | |
5296 | (void) strlcpy(nonpackage_sendfs, | |
eca7b760 IK |
5297 | drr.drr_u.drr_begin.drr_toname, |
5298 | sizeof (nonpackage_sendfs)); | |
428870ff BB |
5299 | if ((cp = strchr(nonpackage_sendfs, '@')) != NULL) |
5300 | *cp = '\0'; | |
5301 | sendfs = nonpackage_sendfs; | |
671c9354 | 5302 | VERIFY(finalsnap == NULL); |
428870ff | 5303 | } |
fcff0f35 PD |
5304 | return (zfs_receive_one(hdl, infd, tosnap, originsnap, flags, |
5305 | &drr, &drr_noswap, sendfs, stream_nv, stream_avl, top_zfs, | |
196bee4c | 5306 | finalsnap, cmdprops)); |
428870ff BB |
5307 | } else { |
5308 | assert(DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == | |
5309 | DMU_COMPOUNDSTREAM); | |
fcff0f35 | 5310 | return (zfs_receive_package(hdl, infd, tosnap, flags, &drr, |
196bee4c | 5311 | &zcksum, top_zfs, cmdprops)); |
34dc7c2f BB |
5312 | } |
5313 | } | |
b128c09f BB |
5314 | |
5315 | /* | |
5316 | * Restores a backup of tosnap from the file descriptor specified by infd. | |
5317 | * Return 0 on total success, -2 if some things couldn't be | |
5318 | * destroyed/renamed/promoted, -1 if some things couldn't be received. | |
47dfff3b MA |
5319 | * (-1 will override -2, if -1 and the resumable flag was specified the |
5320 | * transfer can be resumed if the sending side supports it). | |
b128c09f BB |
5321 | */ |
5322 | int | |
fcff0f35 PD |
5323 | zfs_receive(libzfs_handle_t *hdl, const char *tosnap, nvlist_t *props, |
5324 | recvflags_t *flags, int infd, avl_tree_t *stream_avl) | |
b128c09f BB |
5325 | { |
5326 | char *top_zfs = NULL; | |
5327 | int err; | |
5c3f61eb | 5328 | struct stat sb; |
fcff0f35 | 5329 | char *originsnap = NULL; |
5c3f61eb RY |
5330 | |
5331 | /* | |
5332 | * The only way fstat can fail is if we do not have a valid file | |
5333 | * descriptor. | |
5334 | */ | |
5335 | if (fstat(infd, &sb) == -1) { | |
5336 | perror("fstat"); | |
5337 | return (-2); | |
5338 | } | |
5339 | ||
fcff0f35 PD |
5340 | if (props) { |
5341 | err = nvlist_lookup_string(props, "origin", &originsnap); | |
5342 | if (err && err != ENOENT) | |
5343 | return (err); | |
5344 | } | |
5345 | ||
fcff0f35 | 5346 | err = zfs_receive_impl(hdl, tosnap, originsnap, flags, infd, NULL, NULL, |
196bee4c | 5347 | stream_avl, &top_zfs, NULL, props); |
b128c09f | 5348 | |
bb61cc31 | 5349 | if (err == 0 && !flags->nomount && flags->domount && top_zfs) { |
689f093e GN |
5350 | zfs_handle_t *zhp = NULL; |
5351 | prop_changelist_t *clp = NULL; | |
b128c09f | 5352 | |
bb61cc31 TC |
5353 | zhp = zfs_open(hdl, top_zfs, |
5354 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
5355 | if (zhp == NULL) { | |
5356 | err = -1; | |
5357 | goto out; | |
5358 | } else { | |
5359 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
5360 | zfs_close(zhp); | |
5361 | goto out; | |
5362 | } | |
5363 | ||
b128c09f | 5364 | clp = changelist_gather(zhp, ZFS_PROP_MOUNTPOINT, |
a57d3d45 MZ |
5365 | CL_GATHER_MOUNT_ALWAYS, |
5366 | flags->forceunmount ? MS_FORCE : 0); | |
b128c09f | 5367 | zfs_close(zhp); |
bb61cc31 TC |
5368 | if (clp == NULL) { |
5369 | err = -1; | |
5370 | goto out; | |
b128c09f | 5371 | } |
bb61cc31 TC |
5372 | |
5373 | /* mount and share received datasets */ | |
5374 | err = changelist_postfix(clp); | |
5375 | changelist_free(clp); | |
5376 | if (err != 0) | |
5377 | err = -1; | |
b128c09f | 5378 | } |
b128c09f | 5379 | } |
bb61cc31 TC |
5380 | |
5381 | out: | |
b128c09f BB |
5382 | if (top_zfs) |
5383 | free(top_zfs); | |
5384 | ||
5385 | return (err); | |
5386 | } |