]>
Commit | Line | Data |
---|---|---|
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> | |
d465fc58 | 41 | #include <string.h> |
34dc7c2f BB |
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 | ||
d68a2bfa | 737 | char errbuf[ERRBUFLEN]; |
a8747c04 RM |
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) { |
d68a2bfa | 807 | char errbuf[ERRBUFLEN]; |
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 | 853 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); |
80a650b7 GA |
854 | case ENOTSUP: |
855 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
856 | "large blocks detected but large_blocks feature " | |
857 | "is inactive; raw send unsupported")); | |
858 | return (zfs_error(hdl, EZFS_NOTSUP, errbuf)); | |
34dc7c2f BB |
859 | |
860 | default: | |
861 | return (zfs_standard_error(hdl, errno, errbuf)); | |
862 | } | |
863 | } | |
864 | ||
25074b47 | 865 | if (debugnv != NULL) { |
60a2434b | 866 | fnvlist_add_nvlist(debugnv, zhp->zfs_name, thisdbg); |
25074b47 RM |
867 | fnvlist_free(thisdbg); |
868 | } | |
428870ff | 869 | |
34dc7c2f BB |
870 | return (0); |
871 | } | |
872 | ||
95fd54a1 SH |
873 | static void |
874 | gather_holds(zfs_handle_t *zhp, send_dump_data_t *sdd) | |
572e2857 | 875 | { |
572e2857 BB |
876 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); |
877 | ||
878 | /* | |
95fd54a1 | 879 | * zfs_send() only sets snapholds for sends that need them, |
572e2857 BB |
880 | * e.g. replication and doall. |
881 | */ | |
95fd54a1 SH |
882 | if (sdd->snapholds == NULL) |
883 | return; | |
572e2857 | 884 | |
95fd54a1 | 885 | fnvlist_add_string(sdd->snapholds, zhp->zfs_name, sdd->holdtag); |
572e2857 BB |
886 | } |
887 | ||
30af21b0 PD |
888 | int |
889 | zfs_send_progress(zfs_handle_t *zhp, int fd, uint64_t *bytes_written, | |
890 | uint64_t *blocks_visited) | |
891 | { | |
659f4008 RM |
892 | zfs_cmd_t zc = {"\0"}; |
893 | ||
24f1aa02 RM |
894 | if (bytes_written != NULL) |
895 | *bytes_written = 0; | |
896 | if (blocks_visited != NULL) | |
897 | *blocks_visited = 0; | |
30af21b0 PD |
898 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
899 | zc.zc_cookie = fd; | |
900 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SEND_PROGRESS, &zc) != 0) | |
901 | return (errno); | |
902 | if (bytes_written != NULL) | |
903 | *bytes_written = zc.zc_cookie; | |
904 | if (blocks_visited != NULL) | |
905 | *blocks_visited = zc.zc_objset_type; | |
906 | return (0); | |
907 | } | |
908 | ||
37abac6d BP |
909 | static void * |
910 | send_progress_thread(void *arg) | |
911 | { | |
912 | progress_arg_t *pa = arg; | |
37abac6d | 913 | zfs_handle_t *zhp = pa->pa_zhp; |
30af21b0 PD |
914 | uint64_t bytes; |
915 | uint64_t blocks; | |
37abac6d | 916 | char buf[16]; |
37abac6d | 917 | time_t t; |
8ab27948 | 918 | struct tm tm; |
fbcc25c9 RM |
919 | int err; |
920 | ||
921 | if (!pa->pa_parsable) { | |
922 | (void) fprintf(stderr, | |
923 | "TIME %s %sSNAPSHOT %s\n", | |
924 | pa->pa_estimate ? "BYTES" : " SENT", | |
925 | pa->pa_verbosity >= 2 ? " BLOCKS " : "", | |
926 | zhp->zfs_name); | |
927 | } | |
37abac6d BP |
928 | |
929 | /* | |
930 | * Print the progress from ZFS_IOC_SEND_PROGRESS every second. | |
931 | */ | |
932 | for (;;) { | |
933 | (void) sleep(1); | |
30af21b0 PD |
934 | if ((err = zfs_send_progress(zhp, pa->pa_fd, &bytes, |
935 | &blocks)) != 0) { | |
936 | if (err == EINTR || err == ENOENT) | |
937 | return ((void *)0); | |
938 | return ((void *)(uintptr_t)err); | |
939 | } | |
37abac6d | 940 | |
37abac6d | 941 | (void) time(&t); |
8ab27948 | 942 | localtime_r(&t, &tm); |
37abac6d | 943 | |
30af21b0 PD |
944 | if (pa->pa_verbosity >= 2 && pa->pa_parsable) { |
945 | (void) fprintf(stderr, | |
946 | "%02d:%02d:%02d\t%llu\t%llu\t%s\n", | |
8ab27948 | 947 | tm.tm_hour, tm.tm_min, tm.tm_sec, |
30af21b0 PD |
948 | (u_longlong_t)bytes, (u_longlong_t)blocks, |
949 | zhp->zfs_name); | |
950 | } else if (pa->pa_verbosity >= 2) { | |
951 | zfs_nicenum(bytes, buf, sizeof (buf)); | |
952 | (void) fprintf(stderr, | |
953 | "%02d:%02d:%02d %5s %8llu %s\n", | |
8ab27948 | 954 | tm.tm_hour, tm.tm_min, tm.tm_sec, |
30af21b0 PD |
955 | buf, (u_longlong_t)blocks, zhp->zfs_name); |
956 | } else if (pa->pa_parsable) { | |
37abac6d | 957 | (void) fprintf(stderr, "%02d:%02d:%02d\t%llu\t%s\n", |
8ab27948 | 958 | tm.tm_hour, tm.tm_min, tm.tm_sec, |
30af21b0 | 959 | (u_longlong_t)bytes, zhp->zfs_name); |
37abac6d | 960 | } else { |
e7fbeb60 | 961 | zfs_nicebytes(bytes, buf, sizeof (buf)); |
37abac6d | 962 | (void) fprintf(stderr, "%02d:%02d:%02d %5s %s\n", |
8ab27948 | 963 | tm.tm_hour, tm.tm_min, tm.tm_sec, |
37abac6d BP |
964 | buf, zhp->zfs_name); |
965 | } | |
966 | } | |
967 | } | |
968 | ||
e3e4c30b AZ |
969 | static boolean_t |
970 | send_progress_thread_exit(libzfs_handle_t *hdl, pthread_t ptid) | |
971 | { | |
972 | void *status = NULL; | |
973 | (void) pthread_cancel(ptid); | |
974 | (void) pthread_join(ptid, &status); | |
975 | int error = (int)(uintptr_t)status; | |
976 | if (error != 0 && status != PTHREAD_CANCELED) | |
977 | return (zfs_standard_error(hdl, error, | |
978 | dgettext(TEXT_DOMAIN, "progress thread exited nonzero"))); | |
979 | else | |
980 | return (B_FALSE); | |
981 | } | |
982 | ||
47dfff3b MA |
983 | static void |
984 | send_print_verbose(FILE *fout, const char *tosnap, const char *fromsnap, | |
985 | uint64_t size, boolean_t parsable) | |
986 | { | |
987 | if (parsable) { | |
988 | if (fromsnap != NULL) { | |
447e90e3 RM |
989 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
990 | "incremental\t%s\t%s"), fromsnap, tosnap); | |
47dfff3b | 991 | } else { |
447e90e3 RM |
992 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
993 | "full\t%s"), tosnap); | |
47dfff3b | 994 | } |
447e90e3 | 995 | (void) fprintf(fout, "\t%llu", (longlong_t)size); |
47dfff3b MA |
996 | } else { |
997 | if (fromsnap != NULL) { | |
998 | if (strchr(fromsnap, '@') == NULL && | |
999 | strchr(fromsnap, '#') == NULL) { | |
1000 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
447e90e3 | 1001 | "send from @%s to %s"), fromsnap, tosnap); |
47dfff3b MA |
1002 | } else { |
1003 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
447e90e3 | 1004 | "send from %s to %s"), fromsnap, tosnap); |
47dfff3b MA |
1005 | } |
1006 | } else { | |
1007 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
447e90e3 RM |
1008 | "full send of %s"), tosnap); |
1009 | } | |
1010 | if (size != 0) { | |
1011 | char buf[16]; | |
1012 | zfs_nicebytes(size, buf, sizeof (buf)); | |
1013 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
1014 | " estimated size is %s"), buf); | |
47dfff3b | 1015 | } |
47dfff3b MA |
1016 | } |
1017 | (void) fprintf(fout, "\n"); | |
1018 | } | |
1019 | ||
1ae78351 RM |
1020 | /* |
1021 | * Send a single filesystem snapshot, updating the send dump data. | |
1022 | * This interface is intended for use as a zfs_iter_snapshots_sorted visitor. | |
1023 | */ | |
34dc7c2f BB |
1024 | static int |
1025 | dump_snapshot(zfs_handle_t *zhp, void *arg) | |
1026 | { | |
1027 | send_dump_data_t *sdd = arg; | |
37abac6d BP |
1028 | progress_arg_t pa = { 0 }; |
1029 | pthread_t tid; | |
572e2857 | 1030 | char *thissnap; |
2aa34383 | 1031 | enum lzc_send_flags flags = 0; |
34dc7c2f | 1032 | int err; |
330d06f9 | 1033 | boolean_t isfromsnap, istosnap, fromorigin; |
428870ff | 1034 | boolean_t exclude = B_FALSE; |
93f6d7e2 | 1035 | FILE *fout = sdd->std_out ? stdout : stderr; |
34dc7c2f | 1036 | |
95fd54a1 | 1037 | err = 0; |
34dc7c2f | 1038 | thissnap = strchr(zhp->zfs_name, '@') + 1; |
428870ff BB |
1039 | isfromsnap = (sdd->fromsnap != NULL && |
1040 | strcmp(sdd->fromsnap, thissnap) == 0); | |
34dc7c2f | 1041 | |
428870ff | 1042 | if (!sdd->seenfrom && isfromsnap) { |
95fd54a1 SH |
1043 | gather_holds(zhp, sdd); |
1044 | sdd->seenfrom = B_TRUE; | |
1ae78351 | 1045 | (void) strlcpy(sdd->prevsnap, thissnap, sizeof (sdd->prevsnap)); |
95fd54a1 | 1046 | sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID); |
34dc7c2f | 1047 | zfs_close(zhp); |
95fd54a1 | 1048 | return (0); |
34dc7c2f BB |
1049 | } |
1050 | ||
1051 | if (sdd->seento || !sdd->seenfrom) { | |
1052 | zfs_close(zhp); | |
1053 | return (0); | |
1054 | } | |
1055 | ||
428870ff BB |
1056 | istosnap = (strcmp(sdd->tosnap, thissnap) == 0); |
1057 | if (istosnap) | |
1058 | sdd->seento = B_TRUE; | |
1059 | ||
2aa34383 DK |
1060 | if (sdd->large_block) |
1061 | flags |= LZC_SEND_FLAG_LARGE_BLOCK; | |
1062 | if (sdd->embed_data) | |
1063 | flags |= LZC_SEND_FLAG_EMBED_DATA; | |
1064 | if (sdd->compress) | |
1065 | flags |= LZC_SEND_FLAG_COMPRESS; | |
b5256303 TC |
1066 | if (sdd->raw) |
1067 | flags |= LZC_SEND_FLAG_RAW; | |
2aa34383 | 1068 | |
428870ff BB |
1069 | if (!sdd->doall && !isfromsnap && !istosnap) { |
1070 | if (sdd->replicate) { | |
1071 | char *snapname; | |
1072 | nvlist_t *snapprops; | |
1073 | /* | |
1074 | * Filter out all intermediate snapshots except origin | |
1075 | * snapshots needed to replicate clones. | |
1076 | */ | |
1077 | nvlist_t *nvfs = fsavl_find(sdd->fsavl, | |
1078 | zhp->zfs_dmustats.dds_guid, &snapname); | |
1079 | ||
97bbeeb9 RM |
1080 | if (nvfs != NULL) { |
1081 | snapprops = fnvlist_lookup_nvlist(nvfs, | |
1082 | "snapprops"); | |
1083 | snapprops = fnvlist_lookup_nvlist(snapprops, | |
1084 | thissnap); | |
1085 | exclude = !nvlist_exists(snapprops, | |
1086 | "is_clone_origin"); | |
1087 | } | |
428870ff BB |
1088 | } else { |
1089 | exclude = B_TRUE; | |
1090 | } | |
1091 | } | |
1092 | ||
1093 | /* | |
1094 | * If a filter function exists, call it to determine whether | |
1095 | * this snapshot will be sent. | |
1096 | */ | |
1097 | if (exclude || (sdd->filter_cb != NULL && | |
1098 | sdd->filter_cb(zhp, sdd->filter_cb_arg) == B_FALSE)) { | |
1099 | /* | |
1100 | * This snapshot is filtered out. Don't send it, and don't | |
572e2857 | 1101 | * set prevsnap_obj, so it will be as if this snapshot didn't |
428870ff BB |
1102 | * exist, and the next accepted snapshot will be sent as |
1103 | * an incremental from the last accepted one, or as the | |
1104 | * first (and full) snapshot in the case of a replication, | |
1105 | * non-incremental send. | |
1106 | */ | |
1107 | zfs_close(zhp); | |
1108 | return (0); | |
1109 | } | |
1110 | ||
95fd54a1 | 1111 | gather_holds(zhp, sdd); |
330d06f9 MA |
1112 | fromorigin = sdd->prevsnap[0] == '\0' && |
1113 | (sdd->fromorigin || sdd->replicate); | |
1114 | ||
30af21b0 | 1115 | if (sdd->verbosity != 0) { |
47dfff3b | 1116 | uint64_t size = 0; |
cf7684bc | 1117 | char fromds[ZFS_MAX_DATASET_NAME_LEN]; |
330d06f9 | 1118 | |
cf7684bc | 1119 | if (sdd->prevsnap[0] != '\0') { |
1120 | (void) strlcpy(fromds, zhp->zfs_name, sizeof (fromds)); | |
1121 | *(strchr(fromds, '@') + 1) = '\0'; | |
1122 | (void) strlcat(fromds, sdd->prevsnap, sizeof (fromds)); | |
1123 | } | |
1124 | if (zfs_send_space(zhp, zhp->zfs_name, | |
1ae78351 | 1125 | sdd->prevsnap[0] ? fromds : NULL, flags, &size) == 0) { |
cf7684bc | 1126 | send_print_verbose(fout, zhp->zfs_name, |
1127 | sdd->prevsnap[0] ? sdd->prevsnap : NULL, | |
1128 | size, sdd->parsable); | |
1ae78351 | 1129 | sdd->size += size; |
cf7684bc | 1130 | } |
34dc7c2f BB |
1131 | } |
1132 | ||
330d06f9 | 1133 | if (!sdd->dryrun) { |
37abac6d BP |
1134 | /* |
1135 | * If progress reporting is requested, spawn a new thread to | |
1136 | * poll ZFS_IOC_SEND_PROGRESS at a regular interval. | |
1137 | */ | |
1138 | if (sdd->progress) { | |
1139 | pa.pa_zhp = zhp; | |
1140 | pa.pa_fd = sdd->outfd; | |
1141 | pa.pa_parsable = sdd->parsable; | |
30af21b0 PD |
1142 | pa.pa_estimate = B_FALSE; |
1143 | pa.pa_verbosity = sdd->verbosity; | |
37abac6d BP |
1144 | |
1145 | if ((err = pthread_create(&tid, NULL, | |
23d70cde | 1146 | send_progress_thread, &pa)) != 0) { |
37abac6d BP |
1147 | zfs_close(zhp); |
1148 | return (err); | |
1149 | } | |
1150 | } | |
1151 | ||
330d06f9 | 1152 | err = dump_ioctl(zhp, sdd->prevsnap, sdd->prevsnap_obj, |
9b67f605 | 1153 | fromorigin, sdd->outfd, flags, sdd->debugnv); |
37abac6d | 1154 | |
e3e4c30b AZ |
1155 | if (sdd->progress && |
1156 | send_progress_thread_exit(zhp->zfs_hdl, tid)) | |
1157 | return (-1); | |
330d06f9 | 1158 | } |
34dc7c2f | 1159 | |
572e2857 BB |
1160 | (void) strcpy(sdd->prevsnap, thissnap); |
1161 | sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID); | |
34dc7c2f BB |
1162 | zfs_close(zhp); |
1163 | return (err); | |
1164 | } | |
1165 | ||
1910a308 RM |
1166 | /* |
1167 | * Send all snapshots for a filesystem, updating the send dump data. | |
1168 | */ | |
34dc7c2f | 1169 | static int |
1910a308 | 1170 | dump_filesystem(zfs_handle_t *zhp, send_dump_data_t *sdd) |
34dc7c2f BB |
1171 | { |
1172 | int rv = 0; | |
34dc7c2f | 1173 | boolean_t missingfrom = B_FALSE; |
13fe0198 | 1174 | zfs_cmd_t zc = {"\0"}; |
4c0883fb | 1175 | uint64_t min_txg = 0, max_txg = 0; |
34dc7c2f | 1176 | |
1910a308 RM |
1177 | /* |
1178 | * Make sure the tosnap exists. | |
1179 | */ | |
34dc7c2f BB |
1180 | (void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s", |
1181 | zhp->zfs_name, sdd->tosnap); | |
b834b58a | 1182 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_STATS, &zc) != 0) { |
330d06f9 MA |
1183 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
1184 | "WARNING: could not send %s@%s: does not exist\n"), | |
34dc7c2f BB |
1185 | zhp->zfs_name, sdd->tosnap); |
1186 | sdd->err = B_TRUE; | |
1187 | return (0); | |
1188 | } | |
1189 | ||
1910a308 RM |
1190 | /* |
1191 | * If this fs does not have fromsnap, and we're doing | |
1192 | * recursive, we need to send a full stream from the | |
1193 | * beginning (or an incremental from the origin if this | |
1194 | * is a clone). If we're doing non-recursive, then let | |
1195 | * them get the error. | |
1196 | */ | |
34dc7c2f BB |
1197 | if (sdd->replicate && sdd->fromsnap) { |
1198 | /* | |
1910a308 | 1199 | * Make sure the fromsnap exists. |
34dc7c2f BB |
1200 | */ |
1201 | (void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s", | |
1202 | zhp->zfs_name, sdd->fromsnap); | |
1910a308 | 1203 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_STATS, &zc) != 0) |
34dc7c2f | 1204 | missingfrom = B_TRUE; |
34dc7c2f BB |
1205 | } |
1206 | ||
1910a308 RM |
1207 | sdd->seenfrom = sdd->seento = B_FALSE; |
1208 | sdd->prevsnap[0] = '\0'; | |
572e2857 | 1209 | sdd->prevsnap_obj = 0; |
428870ff BB |
1210 | if (sdd->fromsnap == NULL || missingfrom) |
1211 | sdd->seenfrom = B_TRUE; | |
34dc7c2f | 1212 | |
f94b3cbf TC |
1213 | /* |
1214 | * Iterate through all snapshots and process the ones we will be | |
1215 | * sending. If we only have a "from" and "to" snapshot to deal | |
1216 | * with, we can avoid iterating through all the other snapshots. | |
1217 | */ | |
1218 | if (sdd->doall || sdd->replicate || sdd->tosnap == NULL) { | |
1910a308 RM |
1219 | if (!sdd->replicate) { |
1220 | if (sdd->fromsnap != NULL) { | |
1221 | min_txg = get_snap_txg(zhp->zfs_hdl, | |
1222 | zhp->zfs_name, sdd->fromsnap); | |
1223 | } | |
1224 | if (sdd->tosnap != NULL) { | |
1225 | max_txg = get_snap_txg(zhp->zfs_hdl, | |
1226 | zhp->zfs_name, sdd->tosnap); | |
1227 | } | |
1228 | } | |
1229 | rv = zfs_iter_snapshots_sorted(zhp, dump_snapshot, sdd, | |
f94b3cbf TC |
1230 | min_txg, max_txg); |
1231 | } else { | |
1232 | char snapname[MAXPATHLEN] = { 0 }; | |
1233 | zfs_handle_t *snap; | |
1234 | ||
1910a308 | 1235 | /* Dump fromsnap. */ |
f94b3cbf | 1236 | if (!sdd->seenfrom) { |
f0ce0436 | 1237 | (void) snprintf(snapname, sizeof (snapname), |
f94b3cbf TC |
1238 | "%s@%s", zhp->zfs_name, sdd->fromsnap); |
1239 | snap = zfs_open(zhp->zfs_hdl, snapname, | |
1240 | ZFS_TYPE_SNAPSHOT); | |
1241 | if (snap != NULL) | |
1242 | rv = dump_snapshot(snap, sdd); | |
1243 | else | |
1244 | rv = -1; | |
1245 | } | |
1246 | ||
1910a308 | 1247 | /* Dump tosnap. */ |
f94b3cbf | 1248 | if (rv == 0) { |
f0ce0436 | 1249 | (void) snprintf(snapname, sizeof (snapname), |
f94b3cbf TC |
1250 | "%s@%s", zhp->zfs_name, sdd->tosnap); |
1251 | snap = zfs_open(zhp->zfs_hdl, snapname, | |
1252 | ZFS_TYPE_SNAPSHOT); | |
1253 | if (snap != NULL) | |
1254 | rv = dump_snapshot(snap, sdd); | |
1255 | else | |
1256 | rv = -1; | |
1257 | } | |
1258 | } | |
1259 | ||
428870ff | 1260 | if (!sdd->seenfrom) { |
330d06f9 | 1261 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
428870ff | 1262 | "WARNING: could not send %s@%s:\n" |
330d06f9 | 1263 | "incremental source (%s@%s) does not exist\n"), |
428870ff BB |
1264 | zhp->zfs_name, sdd->tosnap, |
1265 | zhp->zfs_name, sdd->fromsnap); | |
1266 | sdd->err = B_TRUE; | |
1267 | } else if (!sdd->seento) { | |
1268 | if (sdd->fromsnap) { | |
330d06f9 | 1269 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
34dc7c2f | 1270 | "WARNING: could not send %s@%s:\n" |
428870ff | 1271 | "incremental source (%s@%s) " |
330d06f9 | 1272 | "is not earlier than it\n"), |
34dc7c2f BB |
1273 | zhp->zfs_name, sdd->tosnap, |
1274 | zhp->zfs_name, sdd->fromsnap); | |
34dc7c2f | 1275 | } else { |
330d06f9 MA |
1276 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
1277 | "WARNING: " | |
1278 | "could not send %s@%s: does not exist\n"), | |
428870ff | 1279 | zhp->zfs_name, sdd->tosnap); |
34dc7c2f | 1280 | } |
428870ff | 1281 | sdd->err = B_TRUE; |
34dc7c2f BB |
1282 | } |
1283 | ||
1284 | return (rv); | |
1285 | } | |
1286 | ||
45932229 RM |
1287 | /* |
1288 | * Send all snapshots for all filesystems in sdd. | |
1289 | */ | |
34dc7c2f | 1290 | static int |
45932229 | 1291 | dump_filesystems(zfs_handle_t *rzhp, send_dump_data_t *sdd) |
34dc7c2f | 1292 | { |
34dc7c2f BB |
1293 | nvpair_t *fspair; |
1294 | boolean_t needagain, progress; | |
1295 | ||
1296 | if (!sdd->replicate) | |
1297 | return (dump_filesystem(rzhp, sdd)); | |
1298 | ||
428870ff BB |
1299 | /* Mark the clone origin snapshots. */ |
1300 | for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; | |
1301 | fspair = nvlist_next_nvpair(sdd->fss, fspair)) { | |
1302 | nvlist_t *nvfs; | |
1303 | uint64_t origin_guid = 0; | |
1304 | ||
60a2434b | 1305 | nvfs = fnvpair_value_nvlist(fspair); |
428870ff BB |
1306 | (void) nvlist_lookup_uint64(nvfs, "origin", &origin_guid); |
1307 | if (origin_guid != 0) { | |
1308 | char *snapname; | |
1309 | nvlist_t *origin_nv = fsavl_find(sdd->fsavl, | |
1310 | origin_guid, &snapname); | |
1311 | if (origin_nv != NULL) { | |
1312 | nvlist_t *snapprops; | |
60a2434b RM |
1313 | snapprops = fnvlist_lookup_nvlist(origin_nv, |
1314 | "snapprops"); | |
1315 | snapprops = fnvlist_lookup_nvlist(snapprops, | |
1316 | snapname); | |
1317 | fnvlist_add_boolean(snapprops, | |
1318 | "is_clone_origin"); | |
428870ff BB |
1319 | } |
1320 | } | |
1321 | } | |
34dc7c2f BB |
1322 | again: |
1323 | needagain = progress = B_FALSE; | |
1324 | for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; | |
1325 | fspair = nvlist_next_nvpair(sdd->fss, fspair)) { | |
330d06f9 | 1326 | nvlist_t *fslist, *parent_nv; |
34dc7c2f BB |
1327 | char *fsname; |
1328 | zfs_handle_t *zhp; | |
1329 | int err; | |
1330 | uint64_t origin_guid = 0; | |
330d06f9 | 1331 | uint64_t parent_guid = 0; |
34dc7c2f | 1332 | |
60a2434b | 1333 | fslist = fnvpair_value_nvlist(fspair); |
34dc7c2f BB |
1334 | if (nvlist_lookup_boolean(fslist, "sent") == 0) |
1335 | continue; | |
1336 | ||
60a2434b | 1337 | fsname = fnvlist_lookup_string(fslist, "name"); |
34dc7c2f | 1338 | (void) nvlist_lookup_uint64(fslist, "origin", &origin_guid); |
330d06f9 MA |
1339 | (void) nvlist_lookup_uint64(fslist, "parentfromsnap", |
1340 | &parent_guid); | |
1341 | ||
1342 | if (parent_guid != 0) { | |
1343 | parent_nv = fsavl_find(sdd->fsavl, parent_guid, NULL); | |
1344 | if (!nvlist_exists(parent_nv, "sent")) { | |
45932229 | 1345 | /* Parent has not been sent; skip this one. */ |
330d06f9 MA |
1346 | needagain = B_TRUE; |
1347 | continue; | |
1348 | } | |
1349 | } | |
34dc7c2f | 1350 | |
428870ff BB |
1351 | if (origin_guid != 0) { |
1352 | nvlist_t *origin_nv = fsavl_find(sdd->fsavl, | |
1353 | origin_guid, NULL); | |
1354 | if (origin_nv != NULL && | |
330d06f9 | 1355 | !nvlist_exists(origin_nv, "sent")) { |
428870ff | 1356 | /* |
45932229 | 1357 | * Origin has not been sent yet; |
428870ff BB |
1358 | * skip this clone. |
1359 | */ | |
1360 | needagain = B_TRUE; | |
1361 | continue; | |
1362 | } | |
34dc7c2f BB |
1363 | } |
1364 | ||
1365 | zhp = zfs_open(rzhp->zfs_hdl, fsname, ZFS_TYPE_DATASET); | |
1366 | if (zhp == NULL) | |
1367 | return (-1); | |
1368 | err = dump_filesystem(zhp, sdd); | |
60a2434b | 1369 | fnvlist_add_boolean(fslist, "sent"); |
34dc7c2f BB |
1370 | progress = B_TRUE; |
1371 | zfs_close(zhp); | |
1372 | if (err) | |
1373 | return (err); | |
1374 | } | |
1375 | if (needagain) { | |
1376 | assert(progress); | |
1377 | goto again; | |
1378 | } | |
330d06f9 | 1379 | |
45932229 | 1380 | /* Clean out the sent flags in case we reuse this fss. */ |
330d06f9 MA |
1381 | for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; |
1382 | fspair = nvlist_next_nvpair(sdd->fss, fspair)) { | |
1383 | nvlist_t *fslist; | |
1384 | ||
60a2434b | 1385 | fslist = fnvpair_value_nvlist(fspair); |
330d06f9 MA |
1386 | (void) nvlist_remove_all(fslist, "sent"); |
1387 | } | |
1388 | ||
34dc7c2f BB |
1389 | return (0); |
1390 | } | |
1391 | ||
47dfff3b MA |
1392 | nvlist_t * |
1393 | zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, const char *token) | |
1394 | { | |
1395 | unsigned int version; | |
1396 | int nread, i; | |
1397 | unsigned long long checksum, packed_len; | |
1398 | ||
1399 | /* | |
1400 | * Decode token header, which is: | |
1401 | * <token version>-<checksum of payload>-<uncompressed payload length> | |
1402 | * Note that the only supported token version is 1. | |
1403 | */ | |
1404 | nread = sscanf(token, "%u-%llx-%llx-", | |
1405 | &version, &checksum, &packed_len); | |
1406 | if (nread != 3) { | |
1407 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1408 | "resume token is corrupt (invalid format)")); | |
1409 | return (NULL); | |
1410 | } | |
1411 | ||
1412 | if (version != ZFS_SEND_RESUME_TOKEN_VERSION) { | |
1413 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1414 | "resume token is corrupt (invalid version %u)"), | |
1415 | version); | |
1416 | return (NULL); | |
1417 | } | |
1418 | ||
2fafbfde | 1419 | /* Convert hexadecimal representation to binary. */ |
47dfff3b MA |
1420 | token = strrchr(token, '-') + 1; |
1421 | int len = strlen(token) / 2; | |
1422 | unsigned char *compressed = zfs_alloc(hdl, len); | |
1423 | for (i = 0; i < len; i++) { | |
1424 | nread = sscanf(token + i * 2, "%2hhx", compressed + i); | |
1425 | if (nread != 1) { | |
1426 | free(compressed); | |
1427 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1428 | "resume token is corrupt " | |
1429 | "(payload is not hex-encoded)")); | |
1430 | return (NULL); | |
1431 | } | |
1432 | } | |
1433 | ||
2fafbfde | 1434 | /* Verify checksum. */ |
47dfff3b | 1435 | zio_cksum_t cksum; |
fc897b24 | 1436 | fletcher_4_native_varsize(compressed, len, &cksum); |
47dfff3b MA |
1437 | if (cksum.zc_word[0] != checksum) { |
1438 | free(compressed); | |
1439 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1440 | "resume token is corrupt (incorrect checksum)")); | |
1441 | return (NULL); | |
1442 | } | |
1443 | ||
2fafbfde | 1444 | /* Uncompress. */ |
47dfff3b MA |
1445 | void *packed = zfs_alloc(hdl, packed_len); |
1446 | uLongf packed_len_long = packed_len; | |
1447 | if (uncompress(packed, &packed_len_long, compressed, len) != Z_OK || | |
1448 | packed_len_long != packed_len) { | |
1449 | free(packed); | |
1450 | free(compressed); | |
1451 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1452 | "resume token is corrupt (decompression failed)")); | |
1453 | return (NULL); | |
1454 | } | |
1455 | ||
2fafbfde | 1456 | /* Unpack nvlist. */ |
47dfff3b MA |
1457 | nvlist_t *nv; |
1458 | int error = nvlist_unpack(packed, packed_len, &nv, KM_SLEEP); | |
1459 | free(packed); | |
1460 | free(compressed); | |
1461 | if (error != 0) { | |
1462 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1463 | "resume token is corrupt (nvlist_unpack failed)")); | |
1464 | return (NULL); | |
1465 | } | |
1466 | return (nv); | |
1467 | } | |
2fafbfde | 1468 | |
30af21b0 PD |
1469 | static enum lzc_send_flags |
1470 | lzc_flags_from_sendflags(const sendflags_t *flags) | |
1471 | { | |
1472 | enum lzc_send_flags lzc_flags = 0; | |
d1a38ee7 | 1473 | |
30af21b0 PD |
1474 | if (flags->largeblock) |
1475 | lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; | |
1476 | if (flags->embed_data) | |
1477 | lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; | |
1478 | if (flags->compress) | |
1479 | lzc_flags |= LZC_SEND_FLAG_COMPRESS; | |
1480 | if (flags->raw) | |
1481 | lzc_flags |= LZC_SEND_FLAG_RAW; | |
ba0ba69e TC |
1482 | if (flags->saved) |
1483 | lzc_flags |= LZC_SEND_FLAG_SAVED; | |
d1a38ee7 | 1484 | |
30af21b0 PD |
1485 | return (lzc_flags); |
1486 | } | |
1487 | ||
1488 | static int | |
1489 | estimate_size(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags, | |
1490 | uint64_t resumeobj, uint64_t resumeoff, uint64_t bytes, | |
1491 | const char *redactbook, char *errbuf) | |
1492 | { | |
1493 | uint64_t size; | |
1494 | FILE *fout = flags->dryrun ? stdout : stderr; | |
1495 | progress_arg_t pa = { 0 }; | |
1496 | int err = 0; | |
1497 | pthread_t ptid; | |
1498 | ||
1499 | if (flags->progress) { | |
1500 | pa.pa_zhp = zhp; | |
1501 | pa.pa_fd = fd; | |
1502 | pa.pa_parsable = flags->parsable; | |
1503 | pa.pa_estimate = B_TRUE; | |
1504 | pa.pa_verbosity = flags->verbosity; | |
1505 | ||
1506 | err = pthread_create(&ptid, NULL, | |
1507 | send_progress_thread, &pa); | |
1508 | if (err != 0) { | |
f00f4690 | 1509 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno)); |
30af21b0 PD |
1510 | return (zfs_error(zhp->zfs_hdl, |
1511 | EZFS_THREADCREATEFAILED, errbuf)); | |
1512 | } | |
1513 | } | |
1514 | ||
1515 | err = lzc_send_space_resume_redacted(zhp->zfs_name, from, | |
1516 | lzc_flags_from_sendflags(flags), resumeobj, resumeoff, bytes, | |
1517 | redactbook, fd, &size); | |
1518 | ||
e3e4c30b AZ |
1519 | if (flags->progress && send_progress_thread_exit(zhp->zfs_hdl, ptid)) |
1520 | return (-1); | |
30af21b0 PD |
1521 | |
1522 | if (err != 0) { | |
f00f4690 | 1523 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err)); |
30af21b0 PD |
1524 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, |
1525 | errbuf)); | |
1526 | } | |
1527 | send_print_verbose(fout, zhp->zfs_name, from, size, | |
1528 | flags->parsable); | |
1529 | ||
1530 | if (flags->parsable) { | |
1531 | (void) fprintf(fout, "size\t%llu\n", (longlong_t)size); | |
1532 | } else { | |
1533 | char buf[16]; | |
1534 | zfs_nicenum(size, buf, sizeof (buf)); | |
1535 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
1536 | "total estimated size is %s\n"), buf); | |
1537 | } | |
1538 | return (0); | |
1539 | } | |
1540 | ||
1541 | static boolean_t | |
1542 | redact_snaps_contains(const uint64_t *snaps, uint64_t num_snaps, uint64_t guid) | |
1543 | { | |
1544 | for (int i = 0; i < num_snaps; i++) { | |
1545 | if (snaps[i] == guid) | |
1546 | return (B_TRUE); | |
1547 | } | |
1548 | return (B_FALSE); | |
1549 | } | |
1550 | ||
1551 | static boolean_t | |
1552 | redact_snaps_equal(const uint64_t *snaps1, uint64_t num_snaps1, | |
1553 | const uint64_t *snaps2, uint64_t num_snaps2) | |
1554 | { | |
1555 | if (num_snaps1 != num_snaps2) | |
1556 | return (B_FALSE); | |
1557 | for (int i = 0; i < num_snaps1; i++) { | |
1558 | if (!redact_snaps_contains(snaps2, num_snaps2, snaps1[i])) | |
1559 | return (B_FALSE); | |
1560 | } | |
1561 | return (B_TRUE); | |
1562 | } | |
1563 | ||
102eb673 RM |
1564 | static int |
1565 | get_bookmarks(const char *path, nvlist_t **bmarksp) | |
1566 | { | |
1567 | nvlist_t *props = fnvlist_alloc(); | |
1568 | int error; | |
1569 | ||
1570 | fnvlist_add_boolean(props, "redact_complete"); | |
1571 | fnvlist_add_boolean(props, zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS)); | |
1572 | error = lzc_get_bookmarks(path, props, bmarksp); | |
1573 | fnvlist_free(props); | |
1574 | return (error); | |
1575 | } | |
1576 | ||
1577 | static nvpair_t * | |
1578 | find_redact_pair(nvlist_t *bmarks, const uint64_t *redact_snap_guids, | |
1579 | int num_redact_snaps) | |
1580 | { | |
1581 | nvpair_t *pair; | |
1582 | ||
1583 | for (pair = nvlist_next_nvpair(bmarks, NULL); pair; | |
1584 | pair = nvlist_next_nvpair(bmarks, pair)) { | |
1585 | ||
1586 | nvlist_t *bmark = fnvpair_value_nvlist(pair); | |
1587 | nvlist_t *vallist = fnvlist_lookup_nvlist(bmark, | |
1588 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS)); | |
1589 | uint_t len = 0; | |
1590 | uint64_t *bmarksnaps = fnvlist_lookup_uint64_array(vallist, | |
1591 | ZPROP_VALUE, &len); | |
1592 | if (redact_snaps_equal(redact_snap_guids, | |
1593 | num_redact_snaps, bmarksnaps, len)) { | |
1594 | break; | |
1595 | } | |
1596 | } | |
1597 | return (pair); | |
1598 | } | |
1599 | ||
1600 | static boolean_t | |
1601 | get_redact_complete(nvpair_t *pair) | |
1602 | { | |
1603 | nvlist_t *bmark = fnvpair_value_nvlist(pair); | |
1604 | nvlist_t *vallist = fnvlist_lookup_nvlist(bmark, "redact_complete"); | |
1605 | boolean_t complete = fnvlist_lookup_boolean_value(vallist, | |
1606 | ZPROP_VALUE); | |
1607 | ||
1608 | return (complete); | |
1609 | } | |
1610 | ||
30af21b0 PD |
1611 | /* |
1612 | * Check that the list of redaction snapshots in the bookmark matches the send | |
1613 | * we're resuming, and return whether or not it's complete. | |
1614 | * | |
1615 | * Note that the caller needs to free the contents of *bookname with free() if | |
1616 | * this function returns successfully. | |
1617 | */ | |
1618 | static int | |
1619 | find_redact_book(libzfs_handle_t *hdl, const char *path, | |
1620 | const uint64_t *redact_snap_guids, int num_redact_snaps, | |
1621 | char **bookname) | |
1622 | { | |
d68a2bfa | 1623 | char errbuf[ERRBUFLEN]; |
30af21b0 PD |
1624 | nvlist_t *bmarks; |
1625 | ||
1626 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1627 | "cannot resume send")); | |
1628 | ||
102eb673 | 1629 | int error = get_bookmarks(path, &bmarks); |
30af21b0 PD |
1630 | if (error != 0) { |
1631 | if (error == ESRCH) { | |
1632 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1633 | "nonexistent redaction bookmark provided")); | |
1634 | } else if (error == ENOENT) { | |
1635 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1636 | "dataset to be sent no longer exists")); | |
1637 | } else { | |
1638 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1639 | "unknown error: %s"), strerror(error)); | |
1640 | } | |
1641 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1642 | } | |
102eb673 RM |
1643 | nvpair_t *pair = find_redact_pair(bmarks, redact_snap_guids, |
1644 | num_redact_snaps); | |
30af21b0 PD |
1645 | if (pair == NULL) { |
1646 | fnvlist_free(bmarks); | |
1647 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1648 | "no appropriate redaction bookmark exists")); | |
1649 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1650 | } | |
102eb673 | 1651 | boolean_t complete = get_redact_complete(pair); |
30af21b0 PD |
1652 | if (!complete) { |
1653 | fnvlist_free(bmarks); | |
1654 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1655 | "incomplete redaction bookmark provided")); | |
1656 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1657 | } | |
102eb673 | 1658 | *bookname = strndup(nvpair_name(pair), ZFS_MAX_DATASET_NAME_LEN); |
30af21b0 PD |
1659 | ASSERT3P(*bookname, !=, NULL); |
1660 | fnvlist_free(bmarks); | |
1661 | return (0); | |
1662 | } | |
47dfff3b | 1663 | |
d1a38ee7 RM |
1664 | static enum lzc_send_flags |
1665 | lzc_flags_from_resume_nvl(nvlist_t *resume_nvl) | |
1666 | { | |
1667 | enum lzc_send_flags lzc_flags = 0; | |
1668 | ||
1669 | if (nvlist_exists(resume_nvl, "largeblockok")) | |
1670 | lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; | |
1671 | if (nvlist_exists(resume_nvl, "embedok")) | |
1672 | lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; | |
1673 | if (nvlist_exists(resume_nvl, "compressok")) | |
1674 | lzc_flags |= LZC_SEND_FLAG_COMPRESS; | |
1675 | if (nvlist_exists(resume_nvl, "rawok")) | |
1676 | lzc_flags |= LZC_SEND_FLAG_RAW; | |
1677 | if (nvlist_exists(resume_nvl, "savedok")) | |
1678 | lzc_flags |= LZC_SEND_FLAG_SAVED; | |
1679 | ||
1680 | return (lzc_flags); | |
1681 | } | |
1682 | ||
ba0ba69e | 1683 | static int |
3a909fe3 AZ |
1684 | zfs_send_resume_impl_cb_impl(libzfs_handle_t *hdl, sendflags_t *flags, |
1685 | int outfd, nvlist_t *resume_nvl) | |
47dfff3b | 1686 | { |
d68a2bfa | 1687 | char errbuf[ERRBUFLEN]; |
47dfff3b MA |
1688 | char *toname; |
1689 | char *fromname = NULL; | |
1690 | uint64_t resumeobj, resumeoff, toguid, fromguid, bytes; | |
1691 | zfs_handle_t *zhp; | |
1692 | int error = 0; | |
eca7b760 | 1693 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
30af21b0 PD |
1694 | FILE *fout = (flags->verbosity > 0 && flags->dryrun) ? stdout : stderr; |
1695 | uint64_t *redact_snap_guids = NULL; | |
1696 | int num_redact_snaps = 0; | |
1697 | char *redact_book = NULL; | |
47dfff3b MA |
1698 | |
1699 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1700 | "cannot resume send")); | |
1701 | ||
30af21b0 | 1702 | if (flags->verbosity != 0) { |
aee1dd4d | 1703 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
47dfff3b | 1704 | "resume token contents:\n")); |
aee1dd4d | 1705 | nvlist_print(fout, resume_nvl); |
47dfff3b MA |
1706 | } |
1707 | ||
1708 | if (nvlist_lookup_string(resume_nvl, "toname", &toname) != 0 || | |
1709 | nvlist_lookup_uint64(resume_nvl, "object", &resumeobj) != 0 || | |
1710 | nvlist_lookup_uint64(resume_nvl, "offset", &resumeoff) != 0 || | |
1711 | nvlist_lookup_uint64(resume_nvl, "bytes", &bytes) != 0 || | |
1712 | nvlist_lookup_uint64(resume_nvl, "toguid", &toguid) != 0) { | |
1713 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1714 | "resume token is corrupt")); | |
1715 | return (zfs_error(hdl, EZFS_FAULT, errbuf)); | |
1716 | } | |
1717 | fromguid = 0; | |
1718 | (void) nvlist_lookup_uint64(resume_nvl, "fromguid", &fromguid); | |
1719 | ||
ba0ba69e TC |
1720 | if (flags->saved) { |
1721 | (void) strcpy(name, toname); | |
1722 | } else { | |
1723 | error = guid_to_name(hdl, toname, toguid, B_FALSE, name); | |
1724 | if (error != 0) { | |
1725 | if (zfs_dataset_exists(hdl, toname, ZFS_TYPE_DATASET)) { | |
1726 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1727 | "'%s' is no longer the same snapshot " | |
1728 | "used in the initial send"), toname); | |
1729 | } else { | |
1730 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1731 | "'%s' used in the initial send no " | |
1732 | "longer exists"), toname); | |
1733 | } | |
1734 | return (zfs_error(hdl, EZFS_BADPATH, errbuf)); | |
47dfff3b | 1735 | } |
47dfff3b | 1736 | } |
ba0ba69e | 1737 | |
47dfff3b MA |
1738 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); |
1739 | if (zhp == NULL) { | |
1740 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1741 | "unable to access '%s'"), name); | |
1742 | return (zfs_error(hdl, EZFS_BADPATH, errbuf)); | |
1743 | } | |
1744 | ||
30af21b0 PD |
1745 | if (nvlist_lookup_uint64_array(resume_nvl, "book_redact_snaps", |
1746 | &redact_snap_guids, (uint_t *)&num_redact_snaps) != 0) { | |
1747 | num_redact_snaps = -1; | |
1748 | } | |
1749 | ||
47dfff3b | 1750 | if (fromguid != 0) { |
30af21b0 PD |
1751 | if (guid_to_name_redact_snaps(hdl, toname, fromguid, B_TRUE, |
1752 | redact_snap_guids, num_redact_snaps, name) != 0) { | |
47dfff3b MA |
1753 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
1754 | "incremental source %#llx no longer exists"), | |
1755 | (longlong_t)fromguid); | |
1756 | return (zfs_error(hdl, EZFS_BADPATH, errbuf)); | |
1757 | } | |
1758 | fromname = name; | |
1759 | } | |
1760 | ||
30af21b0 PD |
1761 | redact_snap_guids = NULL; |
1762 | ||
1763 | if (nvlist_lookup_uint64_array(resume_nvl, | |
1764 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS), &redact_snap_guids, | |
1765 | (uint_t *)&num_redact_snaps) == 0) { | |
1766 | char path[ZFS_MAX_DATASET_NAME_LEN]; | |
1767 | ||
1768 | (void) strlcpy(path, toname, sizeof (path)); | |
1769 | char *at = strchr(path, '@'); | |
1770 | ASSERT3P(at, !=, NULL); | |
1771 | ||
1772 | *at = '\0'; | |
1773 | ||
1774 | if ((error = find_redact_book(hdl, path, redact_snap_guids, | |
1775 | num_redact_snaps, &redact_book)) != 0) { | |
1776 | return (error); | |
1777 | } | |
1778 | } | |
1779 | ||
d1a38ee7 RM |
1780 | enum lzc_send_flags lzc_flags = lzc_flags_from_sendflags(flags) | |
1781 | lzc_flags_from_resume_nvl(resume_nvl); | |
1782 | ||
30af21b0 PD |
1783 | if (flags->verbosity != 0) { |
1784 | /* | |
1785 | * Some of these may have come from the resume token, set them | |
1786 | * here for size estimate purposes. | |
1787 | */ | |
1788 | sendflags_t tmpflags = *flags; | |
1789 | if (lzc_flags & LZC_SEND_FLAG_LARGE_BLOCK) | |
1790 | tmpflags.largeblock = B_TRUE; | |
1791 | if (lzc_flags & LZC_SEND_FLAG_COMPRESS) | |
1792 | tmpflags.compress = B_TRUE; | |
1793 | if (lzc_flags & LZC_SEND_FLAG_EMBED_DATA) | |
1794 | tmpflags.embed_data = B_TRUE; | |
8f11b1d2 PD |
1795 | if (lzc_flags & LZC_SEND_FLAG_RAW) |
1796 | tmpflags.raw = B_TRUE; | |
1797 | if (lzc_flags & LZC_SEND_FLAG_SAVED) | |
1798 | tmpflags.saved = B_TRUE; | |
30af21b0 PD |
1799 | error = estimate_size(zhp, fromname, outfd, &tmpflags, |
1800 | resumeobj, resumeoff, bytes, redact_book, errbuf); | |
47dfff3b MA |
1801 | } |
1802 | ||
1803 | if (!flags->dryrun) { | |
1804 | progress_arg_t pa = { 0 }; | |
1805 | pthread_t tid; | |
1806 | /* | |
1807 | * If progress reporting is requested, spawn a new thread to | |
1808 | * poll ZFS_IOC_SEND_PROGRESS at a regular interval. | |
1809 | */ | |
1810 | if (flags->progress) { | |
1811 | pa.pa_zhp = zhp; | |
1812 | pa.pa_fd = outfd; | |
1813 | pa.pa_parsable = flags->parsable; | |
30af21b0 PD |
1814 | pa.pa_estimate = B_FALSE; |
1815 | pa.pa_verbosity = flags->verbosity; | |
47dfff3b MA |
1816 | |
1817 | error = pthread_create(&tid, NULL, | |
1818 | send_progress_thread, &pa); | |
1819 | if (error != 0) { | |
30af21b0 PD |
1820 | if (redact_book != NULL) |
1821 | free(redact_book); | |
47dfff3b MA |
1822 | zfs_close(zhp); |
1823 | return (error); | |
1824 | } | |
1825 | } | |
1826 | ||
30af21b0 PD |
1827 | error = lzc_send_resume_redacted(zhp->zfs_name, fromname, outfd, |
1828 | lzc_flags, resumeobj, resumeoff, redact_book); | |
1829 | if (redact_book != NULL) | |
1830 | free(redact_book); | |
47dfff3b | 1831 | |
e3e4c30b AZ |
1832 | if (flags->progress && send_progress_thread_exit(hdl, tid)) |
1833 | return (-1); | |
47dfff3b | 1834 | |
d68a2bfa | 1835 | char errbuf[ERRBUFLEN]; |
47dfff3b MA |
1836 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
1837 | "warning: cannot send '%s'"), zhp->zfs_name); | |
1838 | ||
1839 | zfs_close(zhp); | |
1840 | ||
1841 | switch (error) { | |
1842 | case 0: | |
1843 | return (0); | |
b5256303 TC |
1844 | case EACCES: |
1845 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1846 | "source key must be loaded")); | |
1847 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
30af21b0 PD |
1848 | case ESRCH: |
1849 | if (lzc_exists(zhp->zfs_name)) { | |
1850 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1851 | "incremental source could not be found")); | |
1852 | } | |
1853 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
b5256303 | 1854 | |
47dfff3b MA |
1855 | case EXDEV: |
1856 | case ENOENT: | |
1857 | case EDQUOT: | |
1858 | case EFBIG: | |
1859 | case EIO: | |
1860 | case ENOLINK: | |
1861 | case ENOSPC: | |
1862 | case ENOSTR: | |
1863 | case ENXIO: | |
1864 | case EPIPE: | |
1865 | case ERANGE: | |
1866 | case EFAULT: | |
1867 | case EROFS: | |
f00f4690 | 1868 | zfs_error_aux(hdl, "%s", strerror(errno)); |
47dfff3b MA |
1869 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); |
1870 | ||
1871 | default: | |
1872 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1873 | } | |
30af21b0 PD |
1874 | } else { |
1875 | if (redact_book != NULL) | |
1876 | free(redact_book); | |
47dfff3b MA |
1877 | } |
1878 | ||
47dfff3b MA |
1879 | zfs_close(zhp); |
1880 | ||
1881 | return (error); | |
1882 | } | |
1883 | ||
3a909fe3 AZ |
1884 | struct zfs_send_resume_impl { |
1885 | libzfs_handle_t *hdl; | |
1886 | sendflags_t *flags; | |
1887 | nvlist_t *resume_nvl; | |
1888 | }; | |
1889 | ||
1890 | static int | |
1891 | zfs_send_resume_impl_cb(int outfd, void *arg) | |
1892 | { | |
1893 | struct zfs_send_resume_impl *zsri = arg; | |
1894 | return (zfs_send_resume_impl_cb_impl(zsri->hdl, zsri->flags, outfd, | |
1895 | zsri->resume_nvl)); | |
1896 | } | |
1897 | ||
1898 | static int | |
1899 | zfs_send_resume_impl(libzfs_handle_t *hdl, sendflags_t *flags, int outfd, | |
1900 | nvlist_t *resume_nvl) | |
1901 | { | |
1902 | struct zfs_send_resume_impl zsri = { | |
1903 | .hdl = hdl, | |
1904 | .flags = flags, | |
1905 | .resume_nvl = resume_nvl, | |
1906 | }; | |
1907 | return (lzc_send_wrapper(zfs_send_resume_impl_cb, outfd, &zsri)); | |
1908 | } | |
1909 | ||
ba0ba69e TC |
1910 | int |
1911 | zfs_send_resume(libzfs_handle_t *hdl, sendflags_t *flags, int outfd, | |
1912 | const char *resume_token) | |
1913 | { | |
1914 | int ret; | |
d68a2bfa | 1915 | char errbuf[ERRBUFLEN]; |
ba0ba69e TC |
1916 | nvlist_t *resume_nvl; |
1917 | ||
1918 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1919 | "cannot resume send")); | |
1920 | ||
1921 | resume_nvl = zfs_send_resume_token_to_nvlist(hdl, resume_token); | |
1922 | if (resume_nvl == NULL) { | |
1923 | /* | |
1924 | * zfs_error_aux has already been set by | |
1925 | * zfs_send_resume_token_to_nvlist() | |
1926 | */ | |
1927 | return (zfs_error(hdl, EZFS_FAULT, errbuf)); | |
1928 | } | |
1929 | ||
1930 | ret = zfs_send_resume_impl(hdl, flags, outfd, resume_nvl); | |
60a2434b | 1931 | fnvlist_free(resume_nvl); |
ba0ba69e TC |
1932 | |
1933 | return (ret); | |
1934 | } | |
1935 | ||
1936 | int | |
1937 | zfs_send_saved(zfs_handle_t *zhp, sendflags_t *flags, int outfd, | |
1938 | const char *resume_token) | |
1939 | { | |
1940 | int ret; | |
1941 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
1942 | nvlist_t *saved_nvl = NULL, *resume_nvl = NULL; | |
1943 | uint64_t saved_guid = 0, resume_guid = 0; | |
1944 | uint64_t obj = 0, off = 0, bytes = 0; | |
1945 | char token_buf[ZFS_MAXPROPLEN]; | |
d68a2bfa | 1946 | char errbuf[ERRBUFLEN]; |
ba0ba69e TC |
1947 | |
1948 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1949 | "saved send failed")); | |
1950 | ||
1951 | ret = zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, | |
1952 | token_buf, sizeof (token_buf), NULL, NULL, 0, B_TRUE); | |
1953 | if (ret != 0) | |
1954 | goto out; | |
1955 | ||
1956 | saved_nvl = zfs_send_resume_token_to_nvlist(hdl, token_buf); | |
1957 | if (saved_nvl == NULL) { | |
1958 | /* | |
1959 | * zfs_error_aux has already been set by | |
1960 | * zfs_send_resume_token_to_nvlist() | |
1961 | */ | |
1962 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
1963 | goto out; | |
1964 | } | |
1965 | ||
1966 | /* | |
1967 | * If a resume token is provided we use the object and offset | |
1968 | * from that instead of the default, which starts from the | |
1969 | * beginning. | |
1970 | */ | |
1971 | if (resume_token != NULL) { | |
1972 | resume_nvl = zfs_send_resume_token_to_nvlist(hdl, | |
1973 | resume_token); | |
1974 | if (resume_nvl == NULL) { | |
1975 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
1976 | goto out; | |
1977 | } | |
1978 | ||
1979 | if (nvlist_lookup_uint64(resume_nvl, "object", &obj) != 0 || | |
1980 | nvlist_lookup_uint64(resume_nvl, "offset", &off) != 0 || | |
1981 | nvlist_lookup_uint64(resume_nvl, "bytes", &bytes) != 0 || | |
1982 | nvlist_lookup_uint64(resume_nvl, "toguid", | |
1983 | &resume_guid) != 0) { | |
1984 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1985 | "provided resume token is corrupt")); | |
1986 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
1987 | goto out; | |
1988 | } | |
1989 | ||
1990 | if (nvlist_lookup_uint64(saved_nvl, "toguid", | |
1991 | &saved_guid)) { | |
1992 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1993 | "dataset's resume token is corrupt")); | |
1994 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
1995 | goto out; | |
1996 | } | |
1997 | ||
1998 | if (resume_guid != saved_guid) { | |
1999 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2000 | "provided resume token does not match dataset")); | |
2001 | ret = zfs_error(hdl, EZFS_BADBACKUP, errbuf); | |
2002 | goto out; | |
2003 | } | |
2004 | } | |
2005 | ||
2006 | (void) nvlist_remove_all(saved_nvl, "object"); | |
2007 | fnvlist_add_uint64(saved_nvl, "object", obj); | |
2008 | ||
2009 | (void) nvlist_remove_all(saved_nvl, "offset"); | |
2010 | fnvlist_add_uint64(saved_nvl, "offset", off); | |
2011 | ||
2012 | (void) nvlist_remove_all(saved_nvl, "bytes"); | |
2013 | fnvlist_add_uint64(saved_nvl, "bytes", bytes); | |
2014 | ||
2015 | (void) nvlist_remove_all(saved_nvl, "toname"); | |
2016 | fnvlist_add_string(saved_nvl, "toname", zhp->zfs_name); | |
2017 | ||
2018 | ret = zfs_send_resume_impl(hdl, flags, outfd, saved_nvl); | |
2019 | ||
2020 | out: | |
60a2434b RM |
2021 | fnvlist_free(saved_nvl); |
2022 | fnvlist_free(resume_nvl); | |
ba0ba69e TC |
2023 | return (ret); |
2024 | } | |
2025 | ||
34dc7c2f | 2026 | /* |
30af21b0 PD |
2027 | * This function informs the target system that the recursive send is complete. |
2028 | * The record is also expected in the case of a send -p. | |
2029 | */ | |
2030 | static int | |
2031 | send_conclusion_record(int fd, zio_cksum_t *zc) | |
2032 | { | |
2033 | dmu_replay_record_t drr = { 0 }; | |
2034 | drr.drr_type = DRR_END; | |
2035 | if (zc != NULL) | |
2036 | drr.drr_u.drr_end.drr_checksum = *zc; | |
2037 | if (write(fd, &drr, sizeof (drr)) == -1) { | |
2038 | return (errno); | |
2039 | } | |
2040 | return (0); | |
2041 | } | |
2042 | ||
2043 | /* | |
2044 | * This function is responsible for sending the records that contain the | |
2045 | * necessary information for the target system's libzfs to be able to set the | |
2046 | * properties of the filesystem being received, or to be able to prepare for | |
2047 | * a recursive receive. | |
2048 | * | |
2049 | * The "zhp" argument is the handle of the snapshot we are sending | |
2050 | * (the "tosnap"). The "from" argument is the short snapshot name (the part | |
2051 | * after the @) of the incremental source. | |
2052 | */ | |
2053 | static int | |
2054 | send_prelim_records(zfs_handle_t *zhp, const char *from, int fd, | |
2055 | boolean_t gather_props, boolean_t recursive, boolean_t verbose, | |
099fa7e4 PCG |
2056 | boolean_t dryrun, boolean_t raw, boolean_t replicate, boolean_t skipmissing, |
2057 | boolean_t backup, boolean_t holds, boolean_t props, boolean_t doall, | |
30af21b0 PD |
2058 | nvlist_t **fssp, avl_tree_t **fsavlp) |
2059 | { | |
2060 | int err = 0; | |
2061 | char *packbuf = NULL; | |
2062 | size_t buflen = 0; | |
2063 | zio_cksum_t zc = { {0} }; | |
2064 | int featureflags = 0; | |
2065 | /* name of filesystem/volume that contains snapshot we are sending */ | |
2066 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; | |
2067 | /* short name of snap we are sending */ | |
2068 | char *tosnap = ""; | |
2069 | ||
d68a2bfa | 2070 | char errbuf[ERRBUFLEN]; |
30af21b0 PD |
2071 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
2072 | "warning: cannot send '%s'"), zhp->zfs_name); | |
2073 | if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && zfs_prop_get_int(zhp, | |
2074 | ZFS_PROP_VERSION) >= ZPL_VERSION_SA) { | |
2075 | featureflags |= DMU_BACKUP_FEATURE_SA_SPILL; | |
2076 | } | |
2077 | ||
2078 | if (holds) | |
2079 | featureflags |= DMU_BACKUP_FEATURE_HOLDS; | |
2080 | ||
2081 | (void) strlcpy(tofs, zhp->zfs_name, ZFS_MAX_DATASET_NAME_LEN); | |
2082 | char *at = strchr(tofs, '@'); | |
2083 | if (at != NULL) { | |
2084 | *at = '\0'; | |
2085 | tosnap = at + 1; | |
2086 | } | |
2087 | ||
2088 | if (gather_props) { | |
2089 | nvlist_t *hdrnv = fnvlist_alloc(); | |
2090 | nvlist_t *fss = NULL; | |
2091 | ||
2092 | if (from != NULL) | |
2093 | fnvlist_add_string(hdrnv, "fromsnap", from); | |
2094 | fnvlist_add_string(hdrnv, "tosnap", tosnap); | |
2095 | if (!recursive) | |
2096 | fnvlist_add_boolean(hdrnv, "not_recursive"); | |
2097 | ||
2098 | if (raw) { | |
60a2434b | 2099 | fnvlist_add_boolean(hdrnv, "raw"); |
30af21b0 PD |
2100 | } |
2101 | ||
2102 | if ((err = gather_nvlist(zhp->zfs_hdl, tofs, | |
099fa7e4 PCG |
2103 | from, tosnap, recursive, raw, doall, replicate, skipmissing, |
2104 | verbose, backup, holds, props, &fss, fsavlp)) != 0) { | |
30af21b0 PD |
2105 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, |
2106 | errbuf)); | |
2107 | } | |
7a6c12fd AJ |
2108 | /* |
2109 | * Do not allow the size of the properties list to exceed | |
2110 | * the limit | |
2111 | */ | |
2112 | if ((fnvlist_size(fss) + fnvlist_size(hdrnv)) > | |
2113 | zhp->zfs_hdl->libzfs_max_nvlist) { | |
2114 | (void) snprintf(errbuf, sizeof (errbuf), | |
2115 | dgettext(TEXT_DOMAIN, "warning: cannot send '%s': " | |
2116 | "the size of the list of snapshots and properties " | |
2117 | "is too large to be received successfully.\n" | |
2118 | "Select a smaller number of snapshots to send.\n"), | |
2119 | zhp->zfs_name); | |
2120 | return (zfs_error(zhp->zfs_hdl, EZFS_NOSPC, | |
2121 | errbuf)); | |
2122 | } | |
30af21b0 PD |
2123 | fnvlist_add_nvlist(hdrnv, "fss", fss); |
2124 | VERIFY0(nvlist_pack(hdrnv, &packbuf, &buflen, NV_ENCODE_XDR, | |
2125 | 0)); | |
2126 | if (fssp != NULL) { | |
2127 | *fssp = fss; | |
2128 | } else { | |
60a2434b | 2129 | fnvlist_free(fss); |
30af21b0 | 2130 | } |
60a2434b | 2131 | fnvlist_free(hdrnv); |
30af21b0 PD |
2132 | } |
2133 | ||
2134 | if (!dryrun) { | |
2135 | dmu_replay_record_t drr = { 0 }; | |
2136 | /* write first begin record */ | |
2137 | drr.drr_type = DRR_BEGIN; | |
2138 | drr.drr_u.drr_begin.drr_magic = DMU_BACKUP_MAGIC; | |
2139 | DMU_SET_STREAM_HDRTYPE(drr.drr_u.drr_begin. | |
2140 | drr_versioninfo, DMU_COMPOUNDSTREAM); | |
2141 | DMU_SET_FEATUREFLAGS(drr.drr_u.drr_begin. | |
2142 | drr_versioninfo, featureflags); | |
2143 | if (snprintf(drr.drr_u.drr_begin.drr_toname, | |
2144 | sizeof (drr.drr_u.drr_begin.drr_toname), "%s@%s", tofs, | |
2145 | tosnap) >= sizeof (drr.drr_u.drr_begin.drr_toname)) { | |
2146 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, | |
2147 | errbuf)); | |
2148 | } | |
2149 | drr.drr_payloadlen = buflen; | |
2150 | ||
2151 | err = dump_record(&drr, packbuf, buflen, &zc, fd); | |
2152 | free(packbuf); | |
2153 | if (err != 0) { | |
f00f4690 | 2154 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err)); |
30af21b0 PD |
2155 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, |
2156 | errbuf)); | |
2157 | } | |
2158 | err = send_conclusion_record(fd, &zc); | |
2159 | if (err != 0) { | |
f00f4690 | 2160 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err)); |
30af21b0 PD |
2161 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, |
2162 | errbuf)); | |
2163 | } | |
2164 | } | |
2165 | return (0); | |
2166 | } | |
2167 | ||
2168 | /* | |
2169 | * Generate a send stream. The "zhp" argument is the filesystem/volume | |
2170 | * that contains the snapshot to send. The "fromsnap" argument is the | |
2171 | * short name (the part after the '@') of the snapshot that is the | |
2172 | * incremental source to send from (if non-NULL). The "tosnap" argument | |
2173 | * is the short name of the snapshot to send. | |
45d1cae3 BB |
2174 | * |
2175 | * The content of the send stream is the snapshot identified by | |
2176 | * 'tosnap'. Incremental streams are requested in two ways: | |
2177 | * - from the snapshot identified by "fromsnap" (if non-null) or | |
2178 | * - from the origin of the dataset identified by zhp, which must | |
2179 | * be a clone. In this case, "fromsnap" is null and "fromorigin" | |
2180 | * is TRUE. | |
2181 | * | |
2182 | * The send stream is recursive (i.e. dumps a hierarchy of snapshots) and | |
428870ff | 2183 | * uses a special header (with a hdrtype field of DMU_COMPOUNDSTREAM) |
45d1cae3 | 2184 | * if "replicate" is set. If "doall" is set, dump all the intermediate |
428870ff BB |
2185 | * snapshots. The DMU_COMPOUNDSTREAM header is used in the "doall" |
2186 | * case too. If "props" is set, send properties. | |
3a909fe3 AZ |
2187 | * |
2188 | * Pre-wrapped (cf. lzc_send_wrapper()). | |
34dc7c2f | 2189 | */ |
3a909fe3 AZ |
2190 | static int |
2191 | zfs_send_cb_impl(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, | |
330d06f9 | 2192 | sendflags_t *flags, int outfd, snapfilter_cb_t filter_func, |
428870ff | 2193 | void *cb_arg, nvlist_t **debugnvp) |
34dc7c2f | 2194 | { |
d68a2bfa | 2195 | char errbuf[ERRBUFLEN]; |
34dc7c2f | 2196 | send_dump_data_t sdd = { 0 }; |
330d06f9 | 2197 | int err = 0; |
34dc7c2f BB |
2198 | nvlist_t *fss = NULL; |
2199 | avl_tree_t *fsavl = NULL; | |
428870ff BB |
2200 | static uint64_t holdseq; |
2201 | int spa_version; | |
93f6d7e2 | 2202 | FILE *fout; |
428870ff | 2203 | |
34dc7c2f BB |
2204 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
2205 | "cannot send '%s'"), zhp->zfs_name); | |
2206 | ||
2207 | if (fromsnap && fromsnap[0] == '\0') { | |
2208 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
2209 | "zero-length incremental source")); | |
2210 | return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); | |
2211 | } | |
2212 | ||
aad91df0 RE |
2213 | if (fromsnap) { |
2214 | char full_fromsnap_name[ZFS_MAX_DATASET_NAME_LEN]; | |
2215 | if (snprintf(full_fromsnap_name, sizeof (full_fromsnap_name), | |
2216 | "%s@%s", zhp->zfs_name, fromsnap) >= | |
2217 | sizeof (full_fromsnap_name)) { | |
2218 | err = EINVAL; | |
2219 | goto stderr_out; | |
2220 | } | |
2221 | zfs_handle_t *fromsnapn = zfs_open(zhp->zfs_hdl, | |
2222 | full_fromsnap_name, ZFS_TYPE_SNAPSHOT); | |
2223 | if (fromsnapn == NULL) { | |
2224 | err = -1; | |
2225 | goto err_out; | |
2226 | } | |
2227 | zfs_close(fromsnapn); | |
2228 | } | |
2229 | ||
9c5e88b1 PZ |
2230 | if (flags->replicate || flags->doall || flags->props || |
2231 | flags->holds || flags->backup) { | |
30af21b0 PD |
2232 | char full_tosnap_name[ZFS_MAX_DATASET_NAME_LEN]; |
2233 | if (snprintf(full_tosnap_name, sizeof (full_tosnap_name), | |
2234 | "%s@%s", zhp->zfs_name, tosnap) >= | |
2235 | sizeof (full_tosnap_name)) { | |
2236 | err = EINVAL; | |
2237 | goto stderr_out; | |
34dc7c2f | 2238 | } |
30af21b0 PD |
2239 | zfs_handle_t *tosnap = zfs_open(zhp->zfs_hdl, |
2240 | full_tosnap_name, ZFS_TYPE_SNAPSHOT); | |
1d20b763 | 2241 | if (tosnap == NULL) { |
2242 | err = -1; | |
2243 | goto err_out; | |
2244 | } | |
30af21b0 PD |
2245 | err = send_prelim_records(tosnap, fromsnap, outfd, |
2246 | flags->replicate || flags->props || flags->holds, | |
2247 | flags->replicate, flags->verbosity > 0, flags->dryrun, | |
099fa7e4 PCG |
2248 | flags->raw, flags->replicate, flags->skipmissing, |
2249 | flags->backup, flags->holds, flags->props, flags->doall, | |
2250 | &fss, &fsavl); | |
30af21b0 PD |
2251 | zfs_close(tosnap); |
2252 | if (err != 0) | |
2253 | goto err_out; | |
34dc7c2f BB |
2254 | } |
2255 | ||
2256 | /* dump each stream */ | |
2257 | sdd.fromsnap = fromsnap; | |
2258 | sdd.tosnap = tosnap; | |
36482bf6 | 2259 | sdd.outfd = outfd; |
330d06f9 MA |
2260 | sdd.replicate = flags->replicate; |
2261 | sdd.doall = flags->doall; | |
2262 | sdd.fromorigin = flags->fromorigin; | |
34dc7c2f BB |
2263 | sdd.fss = fss; |
2264 | sdd.fsavl = fsavl; | |
30af21b0 | 2265 | sdd.verbosity = flags->verbosity; |
330d06f9 | 2266 | sdd.parsable = flags->parsable; |
37abac6d | 2267 | sdd.progress = flags->progress; |
330d06f9 | 2268 | sdd.dryrun = flags->dryrun; |
f1512ee6 | 2269 | sdd.large_block = flags->largeblock; |
9b67f605 | 2270 | sdd.embed_data = flags->embed_data; |
2aa34383 | 2271 | sdd.compress = flags->compress; |
b5256303 | 2272 | sdd.raw = flags->raw; |
9c5e88b1 | 2273 | sdd.holds = flags->holds; |
428870ff BB |
2274 | sdd.filter_cb = filter_func; |
2275 | sdd.filter_cb_arg = cb_arg; | |
2276 | if (debugnvp) | |
2277 | sdd.debugnv = *debugnvp; | |
30af21b0 | 2278 | if (sdd.verbosity != 0 && sdd.dryrun) |
93f6d7e2 MJ |
2279 | sdd.std_out = B_TRUE; |
2280 | fout = sdd.std_out ? stdout : stderr; | |
e956d651 CS |
2281 | |
2282 | /* | |
2283 | * Some flags require that we place user holds on the datasets that are | |
2284 | * being sent so they don't get destroyed during the send. We can skip | |
2285 | * this step if the pool is imported read-only since the datasets cannot | |
2286 | * be destroyed. | |
2287 | */ | |
2288 | if (!flags->dryrun && !zpool_get_prop_int(zfs_get_pool_handle(zhp), | |
2289 | ZPOOL_PROP_READONLY, NULL) && | |
2290 | zfs_spa_version(zhp, &spa_version) == 0 && | |
2291 | spa_version >= SPA_VERSION_USERREFS && | |
2292 | (flags->doall || flags->replicate)) { | |
572e2857 BB |
2293 | ++holdseq; |
2294 | (void) snprintf(sdd.holdtag, sizeof (sdd.holdtag), | |
2295 | ".send-%d-%llu", getpid(), (u_longlong_t)holdseq); | |
10b575d0 | 2296 | sdd.cleanup_fd = open(ZFS_DEV, O_RDWR | O_CLOEXEC); |
572e2857 BB |
2297 | if (sdd.cleanup_fd < 0) { |
2298 | err = errno; | |
2299 | goto stderr_out; | |
2300 | } | |
95fd54a1 | 2301 | sdd.snapholds = fnvlist_alloc(); |
572e2857 BB |
2302 | } else { |
2303 | sdd.cleanup_fd = -1; | |
95fd54a1 | 2304 | sdd.snapholds = NULL; |
572e2857 | 2305 | } |
9c5e88b1 | 2306 | |
30af21b0 | 2307 | if (flags->verbosity != 0 || sdd.snapholds != NULL) { |
330d06f9 MA |
2308 | /* |
2309 | * Do a verbose no-op dry run to get all the verbose output | |
95fd54a1 SH |
2310 | * or to gather snapshot hold's before generating any data, |
2311 | * then do a non-verbose real run to generate the streams. | |
330d06f9 MA |
2312 | */ |
2313 | sdd.dryrun = B_TRUE; | |
2314 | err = dump_filesystems(zhp, &sdd); | |
95fd54a1 SH |
2315 | |
2316 | if (err != 0) | |
2317 | goto stderr_out; | |
2318 | ||
30af21b0 | 2319 | if (flags->verbosity != 0) { |
95fd54a1 | 2320 | if (flags->parsable) { |
93f6d7e2 | 2321 | (void) fprintf(fout, "size\t%llu\n", |
95fd54a1 SH |
2322 | (longlong_t)sdd.size); |
2323 | } else { | |
2324 | char buf[16]; | |
e7fbeb60 | 2325 | zfs_nicebytes(sdd.size, buf, sizeof (buf)); |
93f6d7e2 | 2326 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
95fd54a1 SH |
2327 | "total estimated size is %s\n"), buf); |
2328 | } | |
330d06f9 | 2329 | } |
95fd54a1 SH |
2330 | |
2331 | /* Ensure no snaps found is treated as an error. */ | |
2332 | if (!sdd.seento) { | |
2333 | err = ENOENT; | |
2334 | goto err_out; | |
2335 | } | |
2336 | ||
2337 | /* Skip the second run if dryrun was requested. */ | |
2338 | if (flags->dryrun) | |
2339 | goto err_out; | |
2340 | ||
2341 | if (sdd.snapholds != NULL) { | |
2342 | err = zfs_hold_nvl(zhp, sdd.cleanup_fd, sdd.snapholds); | |
2343 | if (err != 0) | |
2344 | goto stderr_out; | |
2345 | ||
2346 | fnvlist_free(sdd.snapholds); | |
2347 | sdd.snapholds = NULL; | |
2348 | } | |
2349 | ||
2350 | sdd.dryrun = B_FALSE; | |
30af21b0 | 2351 | sdd.verbosity = 0; |
330d06f9 | 2352 | } |
95fd54a1 | 2353 | |
34dc7c2f BB |
2354 | err = dump_filesystems(zhp, &sdd); |
2355 | fsavl_destroy(fsavl); | |
60a2434b | 2356 | fnvlist_free(fss); |
34dc7c2f | 2357 | |
95fd54a1 SH |
2358 | /* Ensure no snaps found is treated as an error. */ |
2359 | if (err == 0 && !sdd.seento) | |
2360 | err = ENOENT; | |
2361 | ||
572e2857 BB |
2362 | if (sdd.cleanup_fd != -1) { |
2363 | VERIFY(0 == close(sdd.cleanup_fd)); | |
2364 | sdd.cleanup_fd = -1; | |
2365 | } | |
2366 | ||
330d06f9 | 2367 | if (!flags->dryrun && (flags->replicate || flags->doall || |
9c5e88b1 | 2368 | flags->props || flags->backup || flags->holds)) { |
34dc7c2f BB |
2369 | /* |
2370 | * write final end record. NB: want to do this even if | |
2371 | * there was some error, because it might not be totally | |
2372 | * failed. | |
2373 | */ | |
10891b37 AH |
2374 | int err2 = send_conclusion_record(outfd, NULL); |
2375 | if (err2 != 0) | |
2376 | return (zfs_standard_error(zhp->zfs_hdl, err2, errbuf)); | |
34dc7c2f BB |
2377 | } |
2378 | ||
2379 | return (err || sdd.err); | |
428870ff BB |
2380 | |
2381 | stderr_out: | |
2382 | err = zfs_standard_error(zhp->zfs_hdl, err, errbuf); | |
2383 | err_out: | |
95fd54a1 | 2384 | fsavl_destroy(fsavl); |
60a2434b | 2385 | fnvlist_free(fss); |
95fd54a1 SH |
2386 | fnvlist_free(sdd.snapholds); |
2387 | ||
572e2857 BB |
2388 | if (sdd.cleanup_fd != -1) |
2389 | VERIFY(0 == close(sdd.cleanup_fd)); | |
428870ff | 2390 | return (err); |
34dc7c2f BB |
2391 | } |
2392 | ||
3a909fe3 AZ |
2393 | struct zfs_send { |
2394 | zfs_handle_t *zhp; | |
2395 | const char *fromsnap; | |
2396 | const char *tosnap; | |
2397 | sendflags_t *flags; | |
2398 | snapfilter_cb_t *filter_func; | |
2399 | void *cb_arg; | |
2400 | nvlist_t **debugnvp; | |
2401 | }; | |
2402 | ||
2403 | static int | |
2404 | zfs_send_cb(int outfd, void *arg) | |
2405 | { | |
2406 | struct zfs_send *zs = arg; | |
2407 | return (zfs_send_cb_impl(zs->zhp, zs->fromsnap, zs->tosnap, zs->flags, | |
2408 | outfd, zs->filter_func, zs->cb_arg, zs->debugnvp)); | |
2409 | } | |
2410 | ||
2411 | int | |
2412 | zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, | |
2413 | sendflags_t *flags, int outfd, snapfilter_cb_t filter_func, | |
2414 | void *cb_arg, nvlist_t **debugnvp) | |
2415 | { | |
2416 | struct zfs_send arg = { | |
2417 | .zhp = zhp, | |
2418 | .fromsnap = fromsnap, | |
2419 | .tosnap = tosnap, | |
2420 | .flags = flags, | |
2421 | .filter_func = filter_func, | |
2422 | .cb_arg = cb_arg, | |
2423 | .debugnvp = debugnvp, | |
2424 | }; | |
2425 | return (lzc_send_wrapper(zfs_send_cb, outfd, &arg)); | |
2426 | } | |
2427 | ||
2428 | ||
65c7cc49 | 2429 | static zfs_handle_t * |
30af21b0 PD |
2430 | name_to_dir_handle(libzfs_handle_t *hdl, const char *snapname) |
2431 | { | |
2432 | char dirname[ZFS_MAX_DATASET_NAME_LEN]; | |
2433 | (void) strlcpy(dirname, snapname, ZFS_MAX_DATASET_NAME_LEN); | |
2434 | char *c = strchr(dirname, '@'); | |
2435 | if (c != NULL) | |
2436 | *c = '\0'; | |
2437 | return (zfs_open(hdl, dirname, ZFS_TYPE_DATASET)); | |
2438 | } | |
2439 | ||
2440 | /* | |
2441 | * Returns B_TRUE if earlier is an earlier snapshot in later's timeline; either | |
2442 | * an earlier snapshot in the same filesystem, or a snapshot before later's | |
2443 | * origin, or it's origin's origin, etc. | |
2444 | */ | |
2445 | static boolean_t | |
2446 | snapshot_is_before(zfs_handle_t *earlier, zfs_handle_t *later) | |
2447 | { | |
2448 | boolean_t ret; | |
2449 | uint64_t later_txg = | |
2450 | (later->zfs_type == ZFS_TYPE_FILESYSTEM || | |
2451 | later->zfs_type == ZFS_TYPE_VOLUME ? | |
2452 | UINT64_MAX : zfs_prop_get_int(later, ZFS_PROP_CREATETXG)); | |
2453 | uint64_t earlier_txg = zfs_prop_get_int(earlier, ZFS_PROP_CREATETXG); | |
2454 | ||
2455 | if (earlier_txg >= later_txg) | |
2456 | return (B_FALSE); | |
2457 | ||
2458 | zfs_handle_t *earlier_dir = name_to_dir_handle(earlier->zfs_hdl, | |
2459 | earlier->zfs_name); | |
2460 | zfs_handle_t *later_dir = name_to_dir_handle(later->zfs_hdl, | |
2461 | later->zfs_name); | |
2462 | ||
2463 | if (strcmp(earlier_dir->zfs_name, later_dir->zfs_name) == 0) { | |
2464 | zfs_close(earlier_dir); | |
2465 | zfs_close(later_dir); | |
2466 | return (B_TRUE); | |
2467 | } | |
2468 | ||
2469 | char clonename[ZFS_MAX_DATASET_NAME_LEN]; | |
2470 | if (zfs_prop_get(later_dir, ZFS_PROP_ORIGIN, clonename, | |
2471 | ZFS_MAX_DATASET_NAME_LEN, NULL, NULL, 0, B_TRUE) != 0) { | |
2472 | zfs_close(earlier_dir); | |
2473 | zfs_close(later_dir); | |
2474 | return (B_FALSE); | |
2475 | } | |
2476 | ||
2477 | zfs_handle_t *origin = zfs_open(earlier->zfs_hdl, clonename, | |
2478 | ZFS_TYPE_DATASET); | |
2479 | uint64_t origin_txg = zfs_prop_get_int(origin, ZFS_PROP_CREATETXG); | |
2480 | ||
2481 | /* | |
2482 | * If "earlier" is exactly the origin, then | |
2483 | * snapshot_is_before(earlier, origin) will return false (because | |
2484 | * they're the same). | |
2485 | */ | |
2486 | if (origin_txg == earlier_txg && | |
2487 | strcmp(origin->zfs_name, earlier->zfs_name) == 0) { | |
2488 | zfs_close(earlier_dir); | |
2489 | zfs_close(later_dir); | |
2490 | zfs_close(origin); | |
2491 | return (B_TRUE); | |
2492 | } | |
2493 | zfs_close(earlier_dir); | |
2494 | zfs_close(later_dir); | |
2495 | ||
2496 | ret = snapshot_is_before(earlier, origin); | |
2497 | zfs_close(origin); | |
2498 | return (ret); | |
2499 | } | |
2500 | ||
2501 | /* | |
2502 | * The "zhp" argument is the handle of the dataset to send (typically a | |
2503 | * snapshot). The "from" argument is the full name of the snapshot or | |
2504 | * bookmark that is the incremental source. | |
3a909fe3 AZ |
2505 | * |
2506 | * Pre-wrapped (cf. lzc_send_wrapper()). | |
30af21b0 | 2507 | */ |
3a909fe3 AZ |
2508 | static int |
2509 | zfs_send_one_cb_impl(zfs_handle_t *zhp, const char *from, int fd, | |
2510 | sendflags_t *flags, const char *redactbook) | |
da536844 | 2511 | { |
30af21b0 | 2512 | int err; |
da536844 | 2513 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
22df2457 | 2514 | char *name = zhp->zfs_name; |
196bee4c | 2515 | pthread_t ptid; |
30af21b0 | 2516 | progress_arg_t pa = { 0 }; |
30af21b0 | 2517 | |
d68a2bfa | 2518 | char errbuf[ERRBUFLEN]; |
30af21b0 | 2519 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
22df2457 | 2520 | "warning: cannot send '%s'"), name); |
835db585 | 2521 | |
30af21b0 PD |
2522 | if (from != NULL && strchr(from, '@')) { |
2523 | zfs_handle_t *from_zhp = zfs_open(hdl, from, | |
2524 | ZFS_TYPE_DATASET); | |
1d20b763 | 2525 | if (from_zhp == NULL) |
2526 | return (-1); | |
30af21b0 PD |
2527 | if (!snapshot_is_before(from_zhp, zhp)) { |
2528 | zfs_close(from_zhp); | |
2529 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2530 | "not an earlier snapshot from the same fs")); | |
2531 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
2532 | } | |
2533 | zfs_close(from_zhp); | |
2534 | } | |
835db585 | 2535 | |
22df2457 RM |
2536 | if (redactbook != NULL) { |
2537 | char bookname[ZFS_MAX_DATASET_NAME_LEN]; | |
2538 | nvlist_t *redact_snaps; | |
2539 | zfs_handle_t *book_zhp; | |
2540 | char *at, *pound; | |
2541 | int dsnamelen; | |
2542 | ||
2543 | pound = strchr(redactbook, '#'); | |
2544 | if (pound != NULL) | |
2545 | redactbook = pound + 1; | |
2546 | at = strchr(name, '@'); | |
2547 | if (at == NULL) { | |
2548 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2549 | "cannot do a redacted send to a filesystem")); | |
2550 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
2551 | } | |
2552 | dsnamelen = at - name; | |
2553 | if (snprintf(bookname, sizeof (bookname), "%.*s#%s", | |
2554 | dsnamelen, name, redactbook) | |
2555 | >= sizeof (bookname)) { | |
2556 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2557 | "invalid bookmark name")); | |
2558 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
2559 | } | |
2560 | book_zhp = zfs_open(hdl, bookname, ZFS_TYPE_BOOKMARK); | |
2561 | if (book_zhp == NULL) | |
2562 | return (-1); | |
2563 | if (nvlist_lookup_nvlist(book_zhp->zfs_props, | |
2564 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS), | |
2565 | &redact_snaps) != 0 || redact_snaps == NULL) { | |
2566 | zfs_close(book_zhp); | |
2567 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2568 | "not a redaction bookmark")); | |
2569 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
2570 | } | |
2571 | zfs_close(book_zhp); | |
2572 | } | |
2573 | ||
30af21b0 PD |
2574 | /* |
2575 | * Send fs properties | |
2576 | */ | |
2577 | if (flags->props || flags->holds || flags->backup) { | |
2578 | /* | |
2579 | * Note: the header generated by send_prelim_records() | |
2580 | * assumes that the incremental source is in the same | |
2581 | * filesystem/volume as the target (which is a requirement | |
2582 | * when doing "zfs send -R"). But that isn't always the | |
2583 | * case here (e.g. send from snap in origin, or send from | |
2584 | * bookmark). We pass from=NULL, which will omit this | |
2585 | * information from the prelim records; it isn't used | |
2586 | * when receiving this type of stream. | |
2587 | */ | |
2588 | err = send_prelim_records(zhp, NULL, fd, B_TRUE, B_FALSE, | |
2589 | flags->verbosity > 0, flags->dryrun, flags->raw, | |
099fa7e4 | 2590 | flags->replicate, B_FALSE, flags->backup, flags->holds, |
30af21b0 PD |
2591 | flags->props, flags->doall, NULL, NULL); |
2592 | if (err != 0) | |
2593 | return (err); | |
2594 | } | |
2595 | ||
2596 | /* | |
2597 | * Perform size estimate if verbose was specified. | |
2598 | */ | |
2599 | if (flags->verbosity != 0) { | |
2600 | err = estimate_size(zhp, from, fd, flags, 0, 0, 0, redactbook, | |
2601 | errbuf); | |
2602 | if (err != 0) | |
2603 | return (err); | |
2604 | } | |
2605 | ||
2606 | if (flags->dryrun) | |
2607 | return (0); | |
2608 | ||
30af21b0 PD |
2609 | /* |
2610 | * If progress reporting is requested, spawn a new thread to poll | |
2611 | * ZFS_IOC_SEND_PROGRESS at a regular interval. | |
2612 | */ | |
2613 | if (flags->progress) { | |
2614 | pa.pa_zhp = zhp; | |
2615 | pa.pa_fd = fd; | |
2616 | pa.pa_parsable = flags->parsable; | |
2617 | pa.pa_estimate = B_FALSE; | |
2618 | pa.pa_verbosity = flags->verbosity; | |
2619 | ||
2620 | err = pthread_create(&ptid, NULL, | |
2621 | send_progress_thread, &pa); | |
2622 | if (err != 0) { | |
f00f4690 | 2623 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno)); |
30af21b0 PD |
2624 | return (zfs_error(zhp->zfs_hdl, |
2625 | EZFS_THREADCREATEFAILED, errbuf)); | |
835db585 | 2626 | } |
2627 | } | |
2628 | ||
22df2457 | 2629 | err = lzc_send_redacted(name, from, fd, |
30af21b0 | 2630 | lzc_flags_from_sendflags(flags), redactbook); |
835db585 | 2631 | |
e3e4c30b AZ |
2632 | if (flags->progress && send_progress_thread_exit(hdl, ptid)) |
2633 | return (-1); | |
da536844 | 2634 | |
8623bd96 | 2635 | if (err == 0 && (flags->props || flags->holds || flags->backup)) { |
30af21b0 | 2636 | /* Write the final end record. */ |
c14ad80f | 2637 | err = send_conclusion_record(fd, NULL); |
30af21b0 PD |
2638 | if (err != 0) |
2639 | return (zfs_standard_error(hdl, err, errbuf)); | |
2640 | } | |
da536844 MA |
2641 | if (err != 0) { |
2642 | switch (errno) { | |
2643 | case EXDEV: | |
2644 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2645 | "not an earlier snapshot from the same fs")); | |
2646 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
2647 | ||
2648 | case ENOENT: | |
2649 | case ESRCH: | |
22df2457 | 2650 | if (lzc_exists(name)) { |
da536844 MA |
2651 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
2652 | "incremental source (%s) does not exist"), | |
2653 | from); | |
2654 | } | |
2655 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2656 | ||
b5256303 TC |
2657 | case EACCES: |
2658 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2659 | "dataset key must be loaded")); | |
2660 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
2661 | ||
da536844 MA |
2662 | case EBUSY: |
2663 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2664 | "target is busy; if a filesystem, " | |
2665 | "it must not be mounted")); | |
2666 | return (zfs_error(hdl, EZFS_BUSY, errbuf)); | |
2667 | ||
2668 | case EDQUOT: | |
22df2457 | 2669 | case EFAULT: |
da536844 | 2670 | case EFBIG: |
22df2457 | 2671 | case EINVAL: |
da536844 MA |
2672 | case EIO: |
2673 | case ENOLINK: | |
2674 | case ENOSPC: | |
2675 | case ENOSTR: | |
2676 | case ENXIO: | |
2677 | case EPIPE: | |
2678 | case ERANGE: | |
da536844 | 2679 | case EROFS: |
f00f4690 | 2680 | zfs_error_aux(hdl, "%s", strerror(errno)); |
da536844 | 2681 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); |
80a650b7 GA |
2682 | case ENOTSUP: |
2683 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2684 | "large blocks detected but large_blocks feature " | |
2685 | "is inactive; raw send unsupported")); | |
2686 | return (zfs_error(hdl, EZFS_NOTSUP, errbuf)); | |
da536844 MA |
2687 | |
2688 | default: | |
2689 | return (zfs_standard_error(hdl, errno, errbuf)); | |
2690 | } | |
2691 | } | |
2692 | return (err != 0); | |
2693 | } | |
2694 | ||
3a909fe3 AZ |
2695 | struct zfs_send_one { |
2696 | zfs_handle_t *zhp; | |
2697 | const char *from; | |
2698 | sendflags_t *flags; | |
2699 | const char *redactbook; | |
2700 | }; | |
2701 | ||
2702 | static int | |
2703 | zfs_send_one_cb(int fd, void *arg) | |
2704 | { | |
2705 | struct zfs_send_one *zso = arg; | |
2706 | return (zfs_send_one_cb_impl(zso->zhp, zso->from, fd, zso->flags, | |
2707 | zso->redactbook)); | |
2708 | } | |
2709 | ||
2710 | int | |
2711 | zfs_send_one(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags, | |
2712 | const char *redactbook) | |
2713 | { | |
2714 | struct zfs_send_one zso = { | |
2715 | .zhp = zhp, | |
2716 | .from = from, | |
2717 | .flags = flags, | |
2718 | .redactbook = redactbook, | |
2719 | }; | |
2720 | return (lzc_send_wrapper(zfs_send_one_cb, fd, &zso)); | |
2721 | } | |
2722 | ||
34dc7c2f BB |
2723 | /* |
2724 | * Routines specific to "zfs recv" | |
2725 | */ | |
2726 | ||
2727 | static int | |
2728 | recv_read(libzfs_handle_t *hdl, int fd, void *buf, int ilen, | |
2729 | boolean_t byteswap, zio_cksum_t *zc) | |
2730 | { | |
2731 | char *cp = buf; | |
2732 | int rv; | |
2733 | int len = ilen; | |
2734 | ||
2735 | do { | |
2736 | rv = read(fd, cp, len); | |
2737 | cp += rv; | |
2738 | len -= rv; | |
2739 | } while (rv > 0); | |
2740 | ||
2741 | if (rv < 0 || len != 0) { | |
2742 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2743 | "failed to read from stream")); | |
2744 | return (zfs_error(hdl, EZFS_BADSTREAM, dgettext(TEXT_DOMAIN, | |
2745 | "cannot receive"))); | |
2746 | } | |
2747 | ||
2748 | if (zc) { | |
2749 | if (byteswap) | |
2750 | fletcher_4_incremental_byteswap(buf, ilen, zc); | |
2751 | else | |
2752 | fletcher_4_incremental_native(buf, ilen, zc); | |
2753 | } | |
2754 | return (0); | |
2755 | } | |
2756 | ||
2757 | static int | |
2758 | recv_read_nvlist(libzfs_handle_t *hdl, int fd, int len, nvlist_t **nvp, | |
2759 | boolean_t byteswap, zio_cksum_t *zc) | |
2760 | { | |
2761 | char *buf; | |
2762 | int err; | |
2763 | ||
2764 | buf = zfs_alloc(hdl, len); | |
34dc7c2f | 2765 | |
7a6c12fd AJ |
2766 | if (len > hdl->libzfs_max_nvlist) { |
2767 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "nvlist too large")); | |
908d43d0 | 2768 | free(buf); |
7a6c12fd AJ |
2769 | return (ENOMEM); |
2770 | } | |
2771 | ||
34dc7c2f BB |
2772 | err = recv_read(hdl, fd, buf, len, byteswap, zc); |
2773 | if (err != 0) { | |
2774 | free(buf); | |
2775 | return (err); | |
2776 | } | |
2777 | ||
2778 | err = nvlist_unpack(buf, len, nvp, 0); | |
2779 | free(buf); | |
2780 | if (err != 0) { | |
2781 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
2782 | "stream (malformed nvlist)")); | |
2783 | return (EINVAL); | |
2784 | } | |
2785 | return (0); | |
2786 | } | |
2787 | ||
b5256303 TC |
2788 | /* |
2789 | * Returns the grand origin (origin of origin of origin...) of a given handle. | |
2790 | * If this dataset is not a clone, it simply returns a copy of the original | |
2791 | * handle. | |
2792 | */ | |
2793 | static zfs_handle_t * | |
2794 | recv_open_grand_origin(zfs_handle_t *zhp) | |
2795 | { | |
2796 | char origin[ZFS_MAX_DATASET_NAME_LEN]; | |
610cb4fb | 2797 | zprop_source_t src; |
b5256303 TC |
2798 | zfs_handle_t *ozhp = zfs_handle_dup(zhp); |
2799 | ||
2800 | while (ozhp != NULL) { | |
2801 | if (zfs_prop_get(ozhp, ZFS_PROP_ORIGIN, origin, | |
2802 | sizeof (origin), &src, NULL, 0, B_FALSE) != 0) | |
2803 | break; | |
2804 | ||
2805 | (void) zfs_close(ozhp); | |
2806 | ozhp = zfs_open(zhp->zfs_hdl, origin, ZFS_TYPE_FILESYSTEM); | |
2807 | } | |
2808 | ||
2809 | return (ozhp); | |
2810 | } | |
2811 | ||
2812 | static int | |
dc1c630b | 2813 | recv_rename_impl(zfs_handle_t *zhp, const char *name, const char *newname) |
b5256303 TC |
2814 | { |
2815 | int err; | |
2816 | zfs_handle_t *ozhp = NULL; | |
2817 | ||
2818 | /* | |
2819 | * Attempt to rename the dataset. If it fails with EACCES we have | |
2820 | * attempted to rename the dataset outside of its encryption root. | |
2821 | * Force the dataset to become an encryption root and try again. | |
2822 | */ | |
dc1c630b | 2823 | err = lzc_rename(name, newname); |
b5256303 TC |
2824 | if (err == EACCES) { |
2825 | ozhp = recv_open_grand_origin(zhp); | |
2826 | if (ozhp == NULL) { | |
2827 | err = ENOENT; | |
2828 | goto out; | |
2829 | } | |
2830 | ||
2831 | err = lzc_change_key(ozhp->zfs_name, DCP_CMD_FORCE_NEW_KEY, | |
2832 | NULL, NULL, 0); | |
2833 | if (err != 0) | |
2834 | goto out; | |
2835 | ||
dc1c630b | 2836 | err = lzc_rename(name, newname); |
b5256303 TC |
2837 | } |
2838 | ||
2839 | out: | |
2840 | if (ozhp != NULL) | |
2841 | zfs_close(ozhp); | |
2842 | return (err); | |
2843 | } | |
2844 | ||
34dc7c2f BB |
2845 | static int |
2846 | recv_rename(libzfs_handle_t *hdl, const char *name, const char *tryname, | |
330d06f9 | 2847 | int baselen, char *newname, recvflags_t *flags) |
34dc7c2f BB |
2848 | { |
2849 | static int seq; | |
34dc7c2f | 2850 | int err; |
b5256303 TC |
2851 | prop_changelist_t *clp = NULL; |
2852 | zfs_handle_t *zhp = NULL; | |
34dc7c2f BB |
2853 | |
2854 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); | |
b5256303 TC |
2855 | if (zhp == NULL) { |
2856 | err = -1; | |
2857 | goto out; | |
2858 | } | |
b128c09f | 2859 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
330d06f9 | 2860 | flags->force ? MS_FORCE : 0); |
b5256303 TC |
2861 | if (clp == NULL) { |
2862 | err = -1; | |
2863 | goto out; | |
2864 | } | |
34dc7c2f BB |
2865 | err = changelist_prefix(clp); |
2866 | if (err) | |
b5256303 | 2867 | goto out; |
34dc7c2f BB |
2868 | |
2869 | if (tryname) { | |
2870 | (void) strcpy(newname, tryname); | |
330d06f9 | 2871 | if (flags->verbose) { |
34dc7c2f | 2872 | (void) printf("attempting rename %s to %s\n", |
dc1c630b | 2873 | name, newname); |
34dc7c2f | 2874 | } |
dc1c630b | 2875 | err = recv_rename_impl(zhp, name, newname); |
34dc7c2f BB |
2876 | if (err == 0) |
2877 | changelist_rename(clp, name, tryname); | |
2878 | } else { | |
2879 | err = ENOENT; | |
2880 | } | |
2881 | ||
13fe0198 | 2882 | if (err != 0 && strncmp(name + baselen, "recv-", 5) != 0) { |
34dc7c2f BB |
2883 | seq++; |
2884 | ||
eca7b760 IK |
2885 | (void) snprintf(newname, ZFS_MAX_DATASET_NAME_LEN, |
2886 | "%.*srecv-%u-%u", baselen, name, getpid(), seq); | |
34dc7c2f | 2887 | |
330d06f9 | 2888 | if (flags->verbose) { |
34dc7c2f | 2889 | (void) printf("failed - trying rename %s to %s\n", |
dc1c630b | 2890 | name, newname); |
34dc7c2f | 2891 | } |
dc1c630b | 2892 | err = recv_rename_impl(zhp, name, newname); |
34dc7c2f BB |
2893 | if (err == 0) |
2894 | changelist_rename(clp, name, newname); | |
330d06f9 | 2895 | if (err && flags->verbose) { |
34dc7c2f BB |
2896 | (void) printf("failed (%u) - " |
2897 | "will try again on next pass\n", errno); | |
2898 | } | |
2899 | err = EAGAIN; | |
330d06f9 | 2900 | } else if (flags->verbose) { |
34dc7c2f BB |
2901 | if (err == 0) |
2902 | (void) printf("success\n"); | |
2903 | else | |
2904 | (void) printf("failed (%u)\n", errno); | |
2905 | } | |
2906 | ||
2907 | (void) changelist_postfix(clp); | |
b5256303 TC |
2908 | |
2909 | out: | |
2910 | if (clp != NULL) | |
2911 | changelist_free(clp); | |
2912 | if (zhp != NULL) | |
2913 | zfs_close(zhp); | |
2914 | ||
2915 | return (err); | |
2916 | } | |
2917 | ||
2918 | static int | |
2919 | recv_promote(libzfs_handle_t *hdl, const char *fsname, | |
2920 | const char *origin_fsname, recvflags_t *flags) | |
2921 | { | |
2922 | int err; | |
2923 | zfs_cmd_t zc = {"\0"}; | |
2924 | zfs_handle_t *zhp = NULL, *ozhp = NULL; | |
2925 | ||
2926 | if (flags->verbose) | |
2927 | (void) printf("promoting %s\n", fsname); | |
2928 | ||
2929 | (void) strlcpy(zc.zc_value, origin_fsname, sizeof (zc.zc_value)); | |
2930 | (void) strlcpy(zc.zc_name, fsname, sizeof (zc.zc_name)); | |
2931 | ||
2932 | /* | |
2933 | * Attempt to promote the dataset. If it fails with EACCES the | |
2934 | * promotion would cause this dataset to leave its encryption root. | |
2935 | * Force the origin to become an encryption root and try again. | |
2936 | */ | |
2937 | err = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); | |
2938 | if (err == EACCES) { | |
2939 | zhp = zfs_open(hdl, fsname, ZFS_TYPE_DATASET); | |
2940 | if (zhp == NULL) { | |
2941 | err = -1; | |
2942 | goto out; | |
2943 | } | |
2944 | ||
2945 | ozhp = recv_open_grand_origin(zhp); | |
2946 | if (ozhp == NULL) { | |
2947 | err = -1; | |
2948 | goto out; | |
2949 | } | |
2950 | ||
2951 | err = lzc_change_key(ozhp->zfs_name, DCP_CMD_FORCE_NEW_KEY, | |
2952 | NULL, NULL, 0); | |
2953 | if (err != 0) | |
2954 | goto out; | |
2955 | ||
2956 | err = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); | |
2957 | } | |
2958 | ||
2959 | out: | |
2960 | if (zhp != NULL) | |
2961 | zfs_close(zhp); | |
2962 | if (ozhp != NULL) | |
2963 | zfs_close(ozhp); | |
34dc7c2f BB |
2964 | |
2965 | return (err); | |
2966 | } | |
2967 | ||
2968 | static int | |
2969 | recv_destroy(libzfs_handle_t *hdl, const char *name, int baselen, | |
330d06f9 | 2970 | char *newname, recvflags_t *flags) |
34dc7c2f | 2971 | { |
34dc7c2f BB |
2972 | int err = 0; |
2973 | prop_changelist_t *clp; | |
2974 | zfs_handle_t *zhp; | |
45d1cae3 BB |
2975 | boolean_t defer = B_FALSE; |
2976 | int spa_version; | |
34dc7c2f BB |
2977 | |
2978 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); | |
2979 | if (zhp == NULL) | |
2980 | return (-1); | |
63652e15 DS |
2981 | zfs_type_t type = zfs_get_type(zhp); |
2982 | if (type == ZFS_TYPE_SNAPSHOT && | |
45d1cae3 BB |
2983 | zfs_spa_version(zhp, &spa_version) == 0 && |
2984 | spa_version >= SPA_VERSION_USERREFS) | |
2985 | defer = B_TRUE; | |
63652e15 DS |
2986 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
2987 | flags->force ? MS_FORCE : 0); | |
34dc7c2f BB |
2988 | zfs_close(zhp); |
2989 | if (clp == NULL) | |
2990 | return (-1); | |
63652e15 | 2991 | |
34dc7c2f BB |
2992 | err = changelist_prefix(clp); |
2993 | if (err) | |
2994 | return (err); | |
2995 | ||
330d06f9 | 2996 | if (flags->verbose) |
dc1c630b | 2997 | (void) printf("attempting destroy %s\n", name); |
63652e15 | 2998 | if (type == ZFS_TYPE_SNAPSHOT) { |
dc1c630b AG |
2999 | nvlist_t *nv = fnvlist_alloc(); |
3000 | fnvlist_add_boolean(nv, name); | |
3001 | err = lzc_destroy_snaps(nv, defer, NULL); | |
3002 | fnvlist_free(nv); | |
3003 | } else { | |
3004 | err = lzc_destroy(name); | |
3005 | } | |
34dc7c2f | 3006 | if (err == 0) { |
330d06f9 | 3007 | if (flags->verbose) |
34dc7c2f | 3008 | (void) printf("success\n"); |
dc1c630b | 3009 | changelist_remove(clp, name); |
34dc7c2f BB |
3010 | } |
3011 | ||
3012 | (void) changelist_postfix(clp); | |
3013 | changelist_free(clp); | |
3014 | ||
45d1cae3 | 3015 | /* |
428870ff BB |
3016 | * Deferred destroy might destroy the snapshot or only mark it to be |
3017 | * destroyed later, and it returns success in either case. | |
45d1cae3 | 3018 | */ |
428870ff BB |
3019 | if (err != 0 || (defer && zfs_dataset_exists(hdl, name, |
3020 | ZFS_TYPE_SNAPSHOT))) { | |
34dc7c2f | 3021 | err = recv_rename(hdl, name, NULL, baselen, newname, flags); |
428870ff | 3022 | } |
34dc7c2f BB |
3023 | |
3024 | return (err); | |
3025 | } | |
3026 | ||
3027 | typedef struct guid_to_name_data { | |
3028 | uint64_t guid; | |
47dfff3b | 3029 | boolean_t bookmark_ok; |
34dc7c2f | 3030 | char *name; |
330d06f9 | 3031 | char *skip; |
30af21b0 PD |
3032 | uint64_t *redact_snap_guids; |
3033 | uint64_t num_redact_snaps; | |
34dc7c2f BB |
3034 | } guid_to_name_data_t; |
3035 | ||
65c7cc49 | 3036 | static boolean_t |
30af21b0 PD |
3037 | redact_snaps_match(zfs_handle_t *zhp, guid_to_name_data_t *gtnd) |
3038 | { | |
3039 | uint64_t *bmark_snaps; | |
3040 | uint_t bmark_num_snaps; | |
3041 | nvlist_t *nvl; | |
3042 | if (zhp->zfs_type != ZFS_TYPE_BOOKMARK) | |
3043 | return (B_FALSE); | |
3044 | ||
3045 | nvl = fnvlist_lookup_nvlist(zhp->zfs_props, | |
3046 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS)); | |
3047 | bmark_snaps = fnvlist_lookup_uint64_array(nvl, ZPROP_VALUE, | |
3048 | &bmark_num_snaps); | |
3049 | if (bmark_num_snaps != gtnd->num_redact_snaps) | |
3050 | return (B_FALSE); | |
3051 | int i = 0; | |
3052 | for (; i < bmark_num_snaps; i++) { | |
3053 | int j = 0; | |
3054 | for (; j < bmark_num_snaps; j++) { | |
3055 | if (bmark_snaps[i] == gtnd->redact_snap_guids[j]) | |
3056 | break; | |
3057 | } | |
3058 | if (j == bmark_num_snaps) | |
3059 | break; | |
3060 | } | |
3061 | return (i == bmark_num_snaps); | |
3062 | } | |
3063 | ||
34dc7c2f BB |
3064 | static int |
3065 | guid_to_name_cb(zfs_handle_t *zhp, void *arg) | |
3066 | { | |
3067 | guid_to_name_data_t *gtnd = arg; | |
47dfff3b | 3068 | const char *slash; |
34dc7c2f BB |
3069 | int err; |
3070 | ||
330d06f9 | 3071 | if (gtnd->skip != NULL && |
47dfff3b MA |
3072 | (slash = strrchr(zhp->zfs_name, '/')) != NULL && |
3073 | strcmp(slash + 1, gtnd->skip) == 0) { | |
3074 | zfs_close(zhp); | |
330d06f9 MA |
3075 | return (0); |
3076 | } | |
3077 | ||
30af21b0 PD |
3078 | if (zfs_prop_get_int(zhp, ZFS_PROP_GUID) == gtnd->guid && |
3079 | (gtnd->num_redact_snaps == -1 || redact_snaps_match(zhp, gtnd))) { | |
34dc7c2f | 3080 | (void) strcpy(gtnd->name, zhp->zfs_name); |
428870ff | 3081 | zfs_close(zhp); |
34dc7c2f BB |
3082 | return (EEXIST); |
3083 | } | |
330d06f9 | 3084 | |
399b9819 | 3085 | err = zfs_iter_children(zhp, guid_to_name_cb, gtnd); |
47dfff3b | 3086 | if (err != EEXIST && gtnd->bookmark_ok) |
399b9819 | 3087 | err = zfs_iter_bookmarks(zhp, guid_to_name_cb, gtnd); |
34dc7c2f BB |
3088 | zfs_close(zhp); |
3089 | return (err); | |
3090 | } | |
3091 | ||
330d06f9 MA |
3092 | /* |
3093 | * Attempt to find the local dataset associated with this guid. In the case of | |
3094 | * multiple matches, we attempt to find the "best" match by searching | |
3095 | * progressively larger portions of the hierarchy. This allows one to send a | |
3096 | * tree of datasets individually and guarantee that we will find the source | |
3097 | * guid within that hierarchy, even if there are multiple matches elsewhere. | |
30af21b0 PD |
3098 | * |
3099 | * If num_redact_snaps is not -1, we attempt to find a redaction bookmark with | |
3100 | * the specified number of redaction snapshots. If num_redact_snaps isn't 0 or | |
3101 | * -1, then redact_snap_guids will be an array of the guids of the snapshots the | |
3102 | * redaction bookmark was created with. If num_redact_snaps is -1, then we will | |
3103 | * attempt to find a snapshot or bookmark (if bookmark_ok is passed) with the | |
3104 | * given guid. Note that a redaction bookmark can be returned if | |
3105 | * num_redact_snaps == -1. | |
330d06f9 | 3106 | */ |
34dc7c2f | 3107 | static int |
30af21b0 PD |
3108 | guid_to_name_redact_snaps(libzfs_handle_t *hdl, const char *parent, |
3109 | uint64_t guid, boolean_t bookmark_ok, uint64_t *redact_snap_guids, | |
3110 | uint64_t num_redact_snaps, char *name) | |
34dc7c2f | 3111 | { |
eca7b760 | 3112 | char pname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 3113 | guid_to_name_data_t gtnd; |
34dc7c2f BB |
3114 | |
3115 | gtnd.guid = guid; | |
47dfff3b | 3116 | gtnd.bookmark_ok = bookmark_ok; |
34dc7c2f | 3117 | gtnd.name = name; |
330d06f9 | 3118 | gtnd.skip = NULL; |
30af21b0 PD |
3119 | gtnd.redact_snap_guids = redact_snap_guids; |
3120 | gtnd.num_redact_snaps = num_redact_snaps; | |
34dc7c2f | 3121 | |
330d06f9 | 3122 | /* |
47dfff3b MA |
3123 | * Search progressively larger portions of the hierarchy, starting |
3124 | * with the filesystem specified by 'parent'. This will | |
330d06f9 MA |
3125 | * select the "most local" version of the origin snapshot in the case |
3126 | * that there are multiple matching snapshots in the system. | |
3127 | */ | |
47dfff3b MA |
3128 | (void) strlcpy(pname, parent, sizeof (pname)); |
3129 | char *cp = strrchr(pname, '@'); | |
3130 | if (cp == NULL) | |
3131 | cp = strchr(pname, '\0'); | |
3132 | for (; cp != NULL; cp = strrchr(pname, '/')) { | |
330d06f9 | 3133 | /* Chop off the last component and open the parent */ |
34dc7c2f | 3134 | *cp = '\0'; |
47dfff3b | 3135 | zfs_handle_t *zhp = make_dataset_handle(hdl, pname); |
330d06f9 MA |
3136 | |
3137 | if (zhp == NULL) | |
3138 | continue; | |
47dfff3b MA |
3139 | int err = guid_to_name_cb(zfs_handle_dup(zhp), >nd); |
3140 | if (err != EEXIST) | |
399b9819 | 3141 | err = zfs_iter_children(zhp, guid_to_name_cb, >nd); |
47dfff3b | 3142 | if (err != EEXIST && bookmark_ok) |
399b9819 | 3143 | err = zfs_iter_bookmarks(zhp, guid_to_name_cb, >nd); |
34dc7c2f | 3144 | zfs_close(zhp); |
330d06f9 MA |
3145 | if (err == EEXIST) |
3146 | return (0); | |
34dc7c2f | 3147 | |
330d06f9 | 3148 | /* |
47dfff3b MA |
3149 | * Remember the last portion of the dataset so we skip it next |
3150 | * time through (as we've already searched that portion of the | |
3151 | * hierarchy). | |
330d06f9 | 3152 | */ |
47dfff3b | 3153 | gtnd.skip = strrchr(pname, '/') + 1; |
330d06f9 | 3154 | } |
34dc7c2f | 3155 | |
330d06f9 | 3156 | return (ENOENT); |
34dc7c2f BB |
3157 | } |
3158 | ||
30af21b0 PD |
3159 | static int |
3160 | guid_to_name(libzfs_handle_t *hdl, const char *parent, uint64_t guid, | |
3161 | boolean_t bookmark_ok, char *name) | |
3162 | { | |
3163 | return (guid_to_name_redact_snaps(hdl, parent, guid, bookmark_ok, NULL, | |
3164 | -1, name)); | |
3165 | } | |
3166 | ||
34dc7c2f | 3167 | /* |
330d06f9 MA |
3168 | * Return +1 if guid1 is before guid2, 0 if they are the same, and -1 if |
3169 | * guid1 is after guid2. | |
34dc7c2f BB |
3170 | */ |
3171 | static int | |
3172 | created_before(libzfs_handle_t *hdl, avl_tree_t *avl, | |
3173 | uint64_t guid1, uint64_t guid2) | |
3174 | { | |
3175 | nvlist_t *nvfs; | |
98401d23 | 3176 | char *fsname = NULL, *snapname = NULL; |
eca7b760 | 3177 | char buf[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 3178 | int rv; |
330d06f9 MA |
3179 | zfs_handle_t *guid1hdl, *guid2hdl; |
3180 | uint64_t create1, create2; | |
34dc7c2f BB |
3181 | |
3182 | if (guid2 == 0) | |
3183 | return (0); | |
3184 | if (guid1 == 0) | |
3185 | return (1); | |
3186 | ||
3187 | nvfs = fsavl_find(avl, guid1, &snapname); | |
60a2434b | 3188 | fsname = fnvlist_lookup_string(nvfs, "name"); |
34dc7c2f | 3189 | (void) snprintf(buf, sizeof (buf), "%s@%s", fsname, snapname); |
330d06f9 MA |
3190 | guid1hdl = zfs_open(hdl, buf, ZFS_TYPE_SNAPSHOT); |
3191 | if (guid1hdl == NULL) | |
34dc7c2f BB |
3192 | return (-1); |
3193 | ||
3194 | nvfs = fsavl_find(avl, guid2, &snapname); | |
60a2434b | 3195 | fsname = fnvlist_lookup_string(nvfs, "name"); |
34dc7c2f | 3196 | (void) snprintf(buf, sizeof (buf), "%s@%s", fsname, snapname); |
330d06f9 MA |
3197 | guid2hdl = zfs_open(hdl, buf, ZFS_TYPE_SNAPSHOT); |
3198 | if (guid2hdl == NULL) { | |
3199 | zfs_close(guid1hdl); | |
34dc7c2f BB |
3200 | return (-1); |
3201 | } | |
3202 | ||
330d06f9 MA |
3203 | create1 = zfs_prop_get_int(guid1hdl, ZFS_PROP_CREATETXG); |
3204 | create2 = zfs_prop_get_int(guid2hdl, ZFS_PROP_CREATETXG); | |
34dc7c2f | 3205 | |
330d06f9 MA |
3206 | if (create1 < create2) |
3207 | rv = -1; | |
3208 | else if (create1 > create2) | |
3209 | rv = +1; | |
3210 | else | |
3211 | rv = 0; | |
3212 | ||
3213 | zfs_close(guid1hdl); | |
3214 | zfs_close(guid2hdl); | |
34dc7c2f BB |
3215 | |
3216 | return (rv); | |
3217 | } | |
3218 | ||
b5256303 | 3219 | /* |
83472fab | 3220 | * This function reestablishes the hierarchy of encryption roots after a |
b5256303 TC |
3221 | * recursive incremental receive has completed. This must be done after the |
3222 | * second call to recv_incremental_replication() has renamed and promoted all | |
83472fab | 3223 | * sent datasets to their final locations in the dataset hierarchy. |
b5256303 TC |
3224 | */ |
3225 | static int | |
bb61cc31 | 3226 | recv_fix_encryption_hierarchy(libzfs_handle_t *hdl, const char *top_zfs, |
7633c0ae | 3227 | nvlist_t *stream_nv) |
b5256303 TC |
3228 | { |
3229 | int err; | |
3230 | nvpair_t *fselem = NULL; | |
3231 | nvlist_t *stream_fss; | |
3232 | ||
60a2434b | 3233 | stream_fss = fnvlist_lookup_nvlist(stream_nv, "fss"); |
b5256303 TC |
3234 | |
3235 | while ((fselem = nvlist_next_nvpair(stream_fss, fselem)) != NULL) { | |
3236 | zfs_handle_t *zhp = NULL; | |
3237 | uint64_t crypt; | |
3238 | nvlist_t *snaps, *props, *stream_nvfs = NULL; | |
3239 | nvpair_t *snapel = NULL; | |
3240 | boolean_t is_encroot, is_clone, stream_encroot; | |
3241 | char *cp; | |
3242 | char *stream_keylocation = NULL; | |
3243 | char keylocation[MAXNAMELEN]; | |
3244 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; | |
3245 | ||
3246 | keylocation[0] = '\0'; | |
60a2434b RM |
3247 | stream_nvfs = fnvpair_value_nvlist(fselem); |
3248 | snaps = fnvlist_lookup_nvlist(stream_nvfs, "snaps"); | |
3249 | props = fnvlist_lookup_nvlist(stream_nvfs, "props"); | |
b5256303 TC |
3250 | stream_encroot = nvlist_exists(stream_nvfs, "is_encroot"); |
3251 | ||
3252 | /* find a snapshot from the stream that exists locally */ | |
3253 | err = ENOENT; | |
3254 | while ((snapel = nvlist_next_nvpair(snaps, snapel)) != NULL) { | |
3255 | uint64_t guid; | |
3256 | ||
60a2434b | 3257 | guid = fnvpair_value_uint64(snapel); |
bb61cc31 | 3258 | err = guid_to_name(hdl, top_zfs, guid, B_FALSE, |
b5256303 TC |
3259 | fsname); |
3260 | if (err == 0) | |
3261 | break; | |
3262 | } | |
3263 | ||
3264 | if (err != 0) | |
3265 | continue; | |
3266 | ||
3267 | cp = strchr(fsname, '@'); | |
3268 | if (cp != NULL) | |
3269 | *cp = '\0'; | |
3270 | ||
3271 | zhp = zfs_open(hdl, fsname, ZFS_TYPE_DATASET); | |
3272 | if (zhp == NULL) { | |
3273 | err = ENOENT; | |
3274 | goto error; | |
3275 | } | |
3276 | ||
3277 | crypt = zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION); | |
3278 | is_clone = zhp->zfs_dmustats.dds_origin[0] != '\0'; | |
3279 | (void) zfs_crypto_get_encryption_root(zhp, &is_encroot, NULL); | |
3280 | ||
da689887 | 3281 | /* we don't need to do anything for unencrypted datasets */ |
b5256303 TC |
3282 | if (crypt == ZIO_CRYPT_OFF) { |
3283 | zfs_close(zhp); | |
3284 | continue; | |
3285 | } | |
3286 | ||
3287 | /* | |
3288 | * If the dataset is flagged as an encryption root, was not | |
3289 | * received as a clone and is not currently an encryption root, | |
3290 | * force it to become one. Fixup the keylocation if necessary. | |
3291 | */ | |
3292 | if (stream_encroot) { | |
3293 | if (!is_clone && !is_encroot) { | |
3294 | err = lzc_change_key(fsname, | |
3295 | DCP_CMD_FORCE_NEW_KEY, NULL, NULL, 0); | |
3296 | if (err != 0) { | |
3297 | zfs_close(zhp); | |
3298 | goto error; | |
3299 | } | |
3300 | } | |
3301 | ||
60a2434b RM |
3302 | stream_keylocation = fnvlist_lookup_string(props, |
3303 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION)); | |
b5256303 TC |
3304 | |
3305 | /* | |
3306 | * Refresh the properties in case the call to | |
3307 | * lzc_change_key() changed the value. | |
3308 | */ | |
3309 | zfs_refresh_properties(zhp); | |
3310 | err = zfs_prop_get(zhp, ZFS_PROP_KEYLOCATION, | |
3311 | keylocation, sizeof (keylocation), NULL, NULL, | |
3312 | 0, B_TRUE); | |
3313 | if (err != 0) { | |
3314 | zfs_close(zhp); | |
3315 | goto error; | |
3316 | } | |
3317 | ||
3318 | if (strcmp(keylocation, stream_keylocation) != 0) { | |
3319 | err = zfs_prop_set(zhp, | |
3320 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), | |
3321 | stream_keylocation); | |
3322 | if (err != 0) { | |
3323 | zfs_close(zhp); | |
3324 | goto error; | |
3325 | } | |
3326 | } | |
3327 | } | |
3328 | ||
3329 | /* | |
3330 | * If the dataset is not flagged as an encryption root and is | |
3331 | * currently an encryption root, force it to inherit from its | |
4807c0ba TC |
3332 | * parent. The root of a raw send should never be |
3333 | * force-inherited. | |
b5256303 | 3334 | */ |
4807c0ba TC |
3335 | if (!stream_encroot && is_encroot && |
3336 | strcmp(top_zfs, fsname) != 0) { | |
b5256303 TC |
3337 | err = lzc_change_key(fsname, DCP_CMD_FORCE_INHERIT, |
3338 | NULL, NULL, 0); | |
3339 | if (err != 0) { | |
3340 | zfs_close(zhp); | |
3341 | goto error; | |
3342 | } | |
3343 | } | |
3344 | ||
3345 | zfs_close(zhp); | |
3346 | } | |
3347 | ||
3348 | return (0); | |
3349 | ||
3350 | error: | |
3351 | return (err); | |
3352 | } | |
3353 | ||
34dc7c2f BB |
3354 | static int |
3355 | recv_incremental_replication(libzfs_handle_t *hdl, const char *tofs, | |
330d06f9 | 3356 | recvflags_t *flags, nvlist_t *stream_nv, avl_tree_t *stream_avl, |
428870ff | 3357 | nvlist_t *renamed) |
34dc7c2f | 3358 | { |
7509a3d2 | 3359 | nvlist_t *local_nv, *deleted = NULL; |
34dc7c2f BB |
3360 | avl_tree_t *local_avl; |
3361 | nvpair_t *fselem, *nextfselem; | |
428870ff | 3362 | char *fromsnap; |
eca7b760 | 3363 | char newname[ZFS_MAX_DATASET_NAME_LEN]; |
7509a3d2 | 3364 | char guidname[32]; |
34dc7c2f | 3365 | int error; |
428870ff BB |
3366 | boolean_t needagain, progress, recursive; |
3367 | char *s1, *s2; | |
34dc7c2f | 3368 | |
60a2434b | 3369 | fromsnap = fnvlist_lookup_string(stream_nv, "fromsnap"); |
428870ff BB |
3370 | |
3371 | recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == | |
3372 | ENOENT); | |
34dc7c2f | 3373 | |
330d06f9 | 3374 | if (flags->dryrun) |
34dc7c2f BB |
3375 | return (0); |
3376 | ||
3377 | again: | |
3378 | needagain = progress = B_FALSE; | |
3379 | ||
60a2434b | 3380 | deleted = fnvlist_alloc(); |
7509a3d2 | 3381 | |
34dc7c2f | 3382 | if ((error = gather_nvlist(hdl, tofs, fromsnap, NULL, |
099fa7e4 | 3383 | recursive, B_TRUE, B_FALSE, recursive, B_FALSE, B_FALSE, B_FALSE, |
f94b3cbf | 3384 | B_FALSE, B_TRUE, &local_nv, &local_avl)) != 0) |
34dc7c2f BB |
3385 | return (error); |
3386 | ||
3387 | /* | |
3388 | * Process deletes and renames | |
3389 | */ | |
3390 | for (fselem = nvlist_next_nvpair(local_nv, NULL); | |
3391 | fselem; fselem = nextfselem) { | |
3392 | nvlist_t *nvfs, *snaps; | |
3393 | nvlist_t *stream_nvfs = NULL; | |
3394 | nvpair_t *snapelem, *nextsnapelem; | |
3395 | uint64_t fromguid = 0; | |
3396 | uint64_t originguid = 0; | |
3397 | uint64_t stream_originguid = 0; | |
3398 | uint64_t parent_fromsnap_guid, stream_parent_fromsnap_guid; | |
3399 | char *fsname, *stream_fsname; | |
3400 | ||
3401 | nextfselem = nvlist_next_nvpair(local_nv, fselem); | |
3402 | ||
60a2434b RM |
3403 | nvfs = fnvpair_value_nvlist(fselem); |
3404 | snaps = fnvlist_lookup_nvlist(nvfs, "snaps"); | |
3405 | fsname = fnvlist_lookup_string(nvfs, "name"); | |
3406 | parent_fromsnap_guid = fnvlist_lookup_uint64(nvfs, | |
3407 | "parentfromsnap"); | |
34dc7c2f BB |
3408 | (void) nvlist_lookup_uint64(nvfs, "origin", &originguid); |
3409 | ||
3410 | /* | |
3411 | * First find the stream's fs, so we can check for | |
3412 | * a different origin (due to "zfs promote") | |
3413 | */ | |
3414 | for (snapelem = nvlist_next_nvpair(snaps, NULL); | |
3415 | snapelem; snapelem = nvlist_next_nvpair(snaps, snapelem)) { | |
3416 | uint64_t thisguid; | |
3417 | ||
60a2434b | 3418 | thisguid = fnvpair_value_uint64(snapelem); |
34dc7c2f BB |
3419 | stream_nvfs = fsavl_find(stream_avl, thisguid, NULL); |
3420 | ||
3421 | if (stream_nvfs != NULL) | |
3422 | break; | |
3423 | } | |
3424 | ||
3425 | /* check for promote */ | |
3426 | (void) nvlist_lookup_uint64(stream_nvfs, "origin", | |
3427 | &stream_originguid); | |
3428 | if (stream_nvfs && originguid != stream_originguid) { | |
3429 | switch (created_before(hdl, local_avl, | |
3430 | stream_originguid, originguid)) { | |
3431 | case 1: { | |
3432 | /* promote it! */ | |
34dc7c2f BB |
3433 | nvlist_t *origin_nvfs; |
3434 | char *origin_fsname; | |
3435 | ||
34dc7c2f BB |
3436 | origin_nvfs = fsavl_find(local_avl, originguid, |
3437 | NULL); | |
60a2434b RM |
3438 | origin_fsname = fnvlist_lookup_string( |
3439 | origin_nvfs, "name"); | |
b5256303 TC |
3440 | error = recv_promote(hdl, fsname, origin_fsname, |
3441 | flags); | |
34dc7c2f BB |
3442 | if (error == 0) |
3443 | progress = B_TRUE; | |
3444 | break; | |
3445 | } | |
3446 | default: | |
3447 | break; | |
3448 | case -1: | |
3449 | fsavl_destroy(local_avl); | |
60a2434b | 3450 | fnvlist_free(local_nv); |
34dc7c2f BB |
3451 | return (-1); |
3452 | } | |
3453 | /* | |
3454 | * We had/have the wrong origin, therefore our | |
3455 | * list of snapshots is wrong. Need to handle | |
3456 | * them on the next pass. | |
3457 | */ | |
3458 | needagain = B_TRUE; | |
3459 | continue; | |
3460 | } | |
3461 | ||
3462 | for (snapelem = nvlist_next_nvpair(snaps, NULL); | |
3463 | snapelem; snapelem = nextsnapelem) { | |
3464 | uint64_t thisguid; | |
3465 | char *stream_snapname; | |
b128c09f | 3466 | nvlist_t *found, *props; |
34dc7c2f BB |
3467 | |
3468 | nextsnapelem = nvlist_next_nvpair(snaps, snapelem); | |
3469 | ||
60a2434b | 3470 | thisguid = fnvpair_value_uint64(snapelem); |
34dc7c2f BB |
3471 | found = fsavl_find(stream_avl, thisguid, |
3472 | &stream_snapname); | |
3473 | ||
3474 | /* check for delete */ | |
3475 | if (found == NULL) { | |
eca7b760 | 3476 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 3477 | |
330d06f9 | 3478 | if (!flags->force) |
34dc7c2f BB |
3479 | continue; |
3480 | ||
3481 | (void) snprintf(name, sizeof (name), "%s@%s", | |
3482 | fsname, nvpair_name(snapelem)); | |
3483 | ||
3484 | error = recv_destroy(hdl, name, | |
3485 | strlen(fsname)+1, newname, flags); | |
3486 | if (error) | |
3487 | needagain = B_TRUE; | |
3488 | else | |
3489 | progress = B_TRUE; | |
3df29340 BB |
3490 | sprintf(guidname, "%llu", |
3491 | (u_longlong_t)thisguid); | |
7509a3d2 | 3492 | nvlist_add_boolean(deleted, guidname); |
34dc7c2f BB |
3493 | continue; |
3494 | } | |
3495 | ||
3496 | stream_nvfs = found; | |
3497 | ||
b128c09f BB |
3498 | if (0 == nvlist_lookup_nvlist(stream_nvfs, "snapprops", |
3499 | &props) && 0 == nvlist_lookup_nvlist(props, | |
3500 | stream_snapname, &props)) { | |
13fe0198 | 3501 | zfs_cmd_t zc = {"\0"}; |
b128c09f | 3502 | |
428870ff | 3503 | zc.zc_cookie = B_TRUE; /* received */ |
b128c09f BB |
3504 | (void) snprintf(zc.zc_name, sizeof (zc.zc_name), |
3505 | "%s@%s", fsname, nvpair_name(snapelem)); | |
18dbf5c8 AZ |
3506 | zcmd_write_src_nvlist(hdl, &zc, props); |
3507 | (void) zfs_ioctl(hdl, | |
3508 | ZFS_IOC_SET_PROP, &zc); | |
3509 | zcmd_free_nvlists(&zc); | |
b128c09f BB |
3510 | } |
3511 | ||
34dc7c2f BB |
3512 | /* check for different snapname */ |
3513 | if (strcmp(nvpair_name(snapelem), | |
3514 | stream_snapname) != 0) { | |
eca7b760 IK |
3515 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
3516 | char tryname[ZFS_MAX_DATASET_NAME_LEN]; | |
34dc7c2f BB |
3517 | |
3518 | (void) snprintf(name, sizeof (name), "%s@%s", | |
3519 | fsname, nvpair_name(snapelem)); | |
3520 | (void) snprintf(tryname, sizeof (name), "%s@%s", | |
3521 | fsname, stream_snapname); | |
3522 | ||
3523 | error = recv_rename(hdl, name, tryname, | |
3524 | strlen(fsname)+1, newname, flags); | |
3525 | if (error) | |
3526 | needagain = B_TRUE; | |
3527 | else | |
3528 | progress = B_TRUE; | |
3529 | } | |
3530 | ||
3531 | if (strcmp(stream_snapname, fromsnap) == 0) | |
3532 | fromguid = thisguid; | |
3533 | } | |
3534 | ||
3535 | /* check for delete */ | |
3536 | if (stream_nvfs == NULL) { | |
330d06f9 | 3537 | if (!flags->force) |
34dc7c2f BB |
3538 | continue; |
3539 | ||
3540 | error = recv_destroy(hdl, fsname, strlen(tofs)+1, | |
3541 | newname, flags); | |
3542 | if (error) | |
3543 | needagain = B_TRUE; | |
3544 | else | |
3545 | progress = B_TRUE; | |
3df29340 | 3546 | sprintf(guidname, "%llu", |
02730c33 | 3547 | (u_longlong_t)parent_fromsnap_guid); |
7509a3d2 | 3548 | nvlist_add_boolean(deleted, guidname); |
34dc7c2f BB |
3549 | continue; |
3550 | } | |
3551 | ||
428870ff | 3552 | if (fromguid == 0) { |
330d06f9 | 3553 | if (flags->verbose) { |
428870ff BB |
3554 | (void) printf("local fs %s does not have " |
3555 | "fromsnap (%s in stream); must have " | |
3556 | "been deleted locally; ignoring\n", | |
3557 | fsname, fromsnap); | |
3558 | } | |
34dc7c2f BB |
3559 | continue; |
3560 | } | |
3561 | ||
60a2434b RM |
3562 | stream_fsname = fnvlist_lookup_string(stream_nvfs, "name"); |
3563 | stream_parent_fromsnap_guid = fnvlist_lookup_uint64( | |
3564 | stream_nvfs, "parentfromsnap"); | |
34dc7c2f | 3565 | |
428870ff BB |
3566 | s1 = strrchr(fsname, '/'); |
3567 | s2 = strrchr(stream_fsname, '/'); | |
3568 | ||
7509a3d2 | 3569 | /* |
3570 | * Check if we're going to rename based on parent guid change | |
3571 | * and the current parent guid was also deleted. If it was then | |
3572 | * rename will fail and is likely unneeded, so avoid this and | |
3573 | * force an early retry to determine the new | |
3574 | * parent_fromsnap_guid. | |
3575 | */ | |
3576 | if (stream_parent_fromsnap_guid != 0 && | |
3577 | parent_fromsnap_guid != 0 && | |
3578 | stream_parent_fromsnap_guid != parent_fromsnap_guid) { | |
3df29340 | 3579 | sprintf(guidname, "%llu", |
02730c33 | 3580 | (u_longlong_t)parent_fromsnap_guid); |
7509a3d2 | 3581 | if (nvlist_exists(deleted, guidname)) { |
3582 | progress = B_TRUE; | |
3583 | needagain = B_TRUE; | |
3584 | goto doagain; | |
3585 | } | |
3586 | } | |
3587 | ||
428870ff BB |
3588 | /* |
3589 | * Check for rename. If the exact receive path is specified, it | |
3590 | * does not count as a rename, but we still need to check the | |
3591 | * datasets beneath it. | |
3592 | */ | |
34dc7c2f | 3593 | if ((stream_parent_fromsnap_guid != 0 && |
428870ff | 3594 | parent_fromsnap_guid != 0 && |
34dc7c2f | 3595 | stream_parent_fromsnap_guid != parent_fromsnap_guid) || |
330d06f9 | 3596 | ((flags->isprefix || strcmp(tofs, fsname) != 0) && |
428870ff | 3597 | (s1 != NULL) && (s2 != NULL) && strcmp(s1, s2) != 0)) { |
34dc7c2f | 3598 | nvlist_t *parent; |
eca7b760 | 3599 | char tryname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
3600 | |
3601 | parent = fsavl_find(local_avl, | |
3602 | stream_parent_fromsnap_guid, NULL); | |
3603 | /* | |
3604 | * NB: parent might not be found if we used the | |
3605 | * tosnap for stream_parent_fromsnap_guid, | |
3606 | * because the parent is a newly-created fs; | |
3607 | * we'll be able to rename it after we recv the | |
3608 | * new fs. | |
3609 | */ | |
3610 | if (parent != NULL) { | |
3611 | char *pname; | |
3612 | ||
60a2434b | 3613 | pname = fnvlist_lookup_string(parent, "name"); |
34dc7c2f BB |
3614 | (void) snprintf(tryname, sizeof (tryname), |
3615 | "%s%s", pname, strrchr(stream_fsname, '/')); | |
3616 | } else { | |
3617 | tryname[0] = '\0'; | |
330d06f9 | 3618 | if (flags->verbose) { |
34dc7c2f BB |
3619 | (void) printf("local fs %s new parent " |
3620 | "not found\n", fsname); | |
3621 | } | |
3622 | } | |
3623 | ||
428870ff BB |
3624 | newname[0] = '\0'; |
3625 | ||
34dc7c2f BB |
3626 | error = recv_rename(hdl, fsname, tryname, |
3627 | strlen(tofs)+1, newname, flags); | |
428870ff BB |
3628 | |
3629 | if (renamed != NULL && newname[0] != '\0') { | |
60a2434b | 3630 | fnvlist_add_boolean(renamed, newname); |
428870ff BB |
3631 | } |
3632 | ||
34dc7c2f BB |
3633 | if (error) |
3634 | needagain = B_TRUE; | |
3635 | else | |
3636 | progress = B_TRUE; | |
3637 | } | |
3638 | } | |
3639 | ||
7509a3d2 | 3640 | doagain: |
34dc7c2f | 3641 | fsavl_destroy(local_avl); |
60a2434b RM |
3642 | fnvlist_free(local_nv); |
3643 | fnvlist_free(deleted); | |
34dc7c2f BB |
3644 | |
3645 | if (needagain && progress) { | |
3646 | /* do another pass to fix up temporary names */ | |
330d06f9 | 3647 | if (flags->verbose) |
34dc7c2f BB |
3648 | (void) printf("another pass:\n"); |
3649 | goto again; | |
3650 | } | |
3651 | ||
b5256303 | 3652 | return (needagain || error != 0); |
34dc7c2f BB |
3653 | } |
3654 | ||
3655 | static int | |
3656 | zfs_receive_package(libzfs_handle_t *hdl, int fd, const char *destname, | |
330d06f9 | 3657 | recvflags_t *flags, dmu_replay_record_t *drr, zio_cksum_t *zc, |
196bee4c | 3658 | char **top_zfs, nvlist_t *cmdprops) |
34dc7c2f BB |
3659 | { |
3660 | nvlist_t *stream_nv = NULL; | |
3661 | avl_tree_t *stream_avl = NULL; | |
3662 | char *fromsnap = NULL; | |
671c9354 | 3663 | char *sendsnap = NULL; |
428870ff | 3664 | char *cp; |
eca7b760 IK |
3665 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; |
3666 | char sendfs[ZFS_MAX_DATASET_NAME_LEN]; | |
d68a2bfa | 3667 | char errbuf[ERRBUFLEN]; |
34dc7c2f BB |
3668 | dmu_replay_record_t drre; |
3669 | int error; | |
3670 | boolean_t anyerr = B_FALSE; | |
3671 | boolean_t softerr = B_FALSE; | |
b5256303 | 3672 | boolean_t recursive, raw; |
34dc7c2f BB |
3673 | |
3674 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3675 | "cannot receive")); | |
3676 | ||
34dc7c2f BB |
3677 | assert(drr->drr_type == DRR_BEGIN); |
3678 | assert(drr->drr_u.drr_begin.drr_magic == DMU_BACKUP_MAGIC); | |
428870ff BB |
3679 | assert(DMU_GET_STREAM_HDRTYPE(drr->drr_u.drr_begin.drr_versioninfo) == |
3680 | DMU_COMPOUNDSTREAM); | |
34dc7c2f BB |
3681 | |
3682 | /* | |
3683 | * Read in the nvlist from the stream. | |
3684 | */ | |
3685 | if (drr->drr_payloadlen != 0) { | |
34dc7c2f | 3686 | error = recv_read_nvlist(hdl, fd, drr->drr_payloadlen, |
330d06f9 | 3687 | &stream_nv, flags->byteswap, zc); |
34dc7c2f BB |
3688 | if (error) { |
3689 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
3690 | goto out; | |
3691 | } | |
3692 | } | |
3693 | ||
428870ff BB |
3694 | recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == |
3695 | ENOENT); | |
b5256303 | 3696 | raw = (nvlist_lookup_boolean(stream_nv, "raw") == 0); |
428870ff BB |
3697 | |
3698 | if (recursive && strchr(destname, '@')) { | |
3699 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3700 | "cannot specify snapshot name for multi-snapshot stream")); | |
3701 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
3702 | goto out; | |
3703 | } | |
3704 | ||
34dc7c2f BB |
3705 | /* |
3706 | * Read in the end record and verify checksum. | |
3707 | */ | |
3708 | if (0 != (error = recv_read(hdl, fd, &drre, sizeof (drre), | |
330d06f9 | 3709 | flags->byteswap, NULL))) |
34dc7c2f | 3710 | goto out; |
330d06f9 | 3711 | if (flags->byteswap) { |
34dc7c2f BB |
3712 | drre.drr_type = BSWAP_32(drre.drr_type); |
3713 | drre.drr_u.drr_end.drr_checksum.zc_word[0] = | |
3714 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[0]); | |
3715 | drre.drr_u.drr_end.drr_checksum.zc_word[1] = | |
3716 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[1]); | |
3717 | drre.drr_u.drr_end.drr_checksum.zc_word[2] = | |
3718 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[2]); | |
3719 | drre.drr_u.drr_end.drr_checksum.zc_word[3] = | |
3720 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[3]); | |
3721 | } | |
3722 | if (drre.drr_type != DRR_END) { | |
3723 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
3724 | goto out; | |
3725 | } | |
3726 | if (!ZIO_CHECKSUM_EQUAL(drre.drr_u.drr_end.drr_checksum, *zc)) { | |
3727 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3728 | "incorrect header checksum")); | |
3729 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
3730 | goto out; | |
3731 | } | |
3732 | ||
3733 | (void) nvlist_lookup_string(stream_nv, "fromsnap", &fromsnap); | |
3734 | ||
3735 | if (drr->drr_payloadlen != 0) { | |
3736 | nvlist_t *stream_fss; | |
3737 | ||
60a2434b | 3738 | stream_fss = fnvlist_lookup_nvlist(stream_nv, "fss"); |
34dc7c2f BB |
3739 | if ((stream_avl = fsavl_create(stream_fss)) == NULL) { |
3740 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3741 | "couldn't allocate avl tree")); | |
3742 | error = zfs_error(hdl, EZFS_NOMEM, errbuf); | |
3743 | goto out; | |
3744 | } | |
3745 | ||
4c3c6b6c | 3746 | if (fromsnap != NULL && recursive) { |
428870ff BB |
3747 | nvlist_t *renamed = NULL; |
3748 | nvpair_t *pair = NULL; | |
3749 | ||
eca7b760 | 3750 | (void) strlcpy(tofs, destname, sizeof (tofs)); |
330d06f9 | 3751 | if (flags->isprefix) { |
428870ff BB |
3752 | struct drr_begin *drrb = &drr->drr_u.drr_begin; |
3753 | int i; | |
3754 | ||
330d06f9 | 3755 | if (flags->istail) { |
428870ff BB |
3756 | cp = strrchr(drrb->drr_toname, '/'); |
3757 | if (cp == NULL) { | |
3758 | (void) strlcat(tofs, "/", | |
eca7b760 | 3759 | sizeof (tofs)); |
428870ff BB |
3760 | i = 0; |
3761 | } else { | |
3762 | i = (cp - drrb->drr_toname); | |
3763 | } | |
3764 | } else { | |
3765 | i = strcspn(drrb->drr_toname, "/@"); | |
3766 | } | |
34dc7c2f | 3767 | /* zfs_receive_one() will create_parents() */ |
428870ff | 3768 | (void) strlcat(tofs, &drrb->drr_toname[i], |
eca7b760 | 3769 | sizeof (tofs)); |
34dc7c2f BB |
3770 | *strchr(tofs, '@') = '\0'; |
3771 | } | |
428870ff | 3772 | |
4c3c6b6c | 3773 | if (!flags->dryrun && !flags->nomount) { |
60a2434b | 3774 | renamed = fnvlist_alloc(); |
428870ff BB |
3775 | } |
3776 | ||
3777 | softerr = recv_incremental_replication(hdl, tofs, flags, | |
3778 | stream_nv, stream_avl, renamed); | |
3779 | ||
3780 | /* Unmount renamed filesystems before receiving. */ | |
3781 | while ((pair = nvlist_next_nvpair(renamed, | |
3782 | pair)) != NULL) { | |
3783 | zfs_handle_t *zhp; | |
3784 | prop_changelist_t *clp = NULL; | |
3785 | ||
3786 | zhp = zfs_open(hdl, nvpair_name(pair), | |
3787 | ZFS_TYPE_FILESYSTEM); | |
3788 | if (zhp != NULL) { | |
3789 | clp = changelist_gather(zhp, | |
a57d3d45 MZ |
3790 | ZFS_PROP_MOUNTPOINT, 0, |
3791 | flags->forceunmount ? MS_FORCE : 0); | |
428870ff BB |
3792 | zfs_close(zhp); |
3793 | if (clp != NULL) { | |
3794 | softerr |= | |
3795 | changelist_prefix(clp); | |
3796 | changelist_free(clp); | |
3797 | } | |
3798 | } | |
3799 | } | |
3800 | ||
60a2434b | 3801 | fnvlist_free(renamed); |
34dc7c2f BB |
3802 | } |
3803 | } | |
3804 | ||
428870ff BB |
3805 | /* |
3806 | * Get the fs specified by the first path in the stream (the top level | |
3807 | * specified by 'zfs send') and pass it to each invocation of | |
3808 | * zfs_receive_one(). | |
3809 | */ | |
3810 | (void) strlcpy(sendfs, drr->drr_u.drr_begin.drr_toname, | |
eca7b760 | 3811 | sizeof (sendfs)); |
671c9354 | 3812 | if ((cp = strchr(sendfs, '@')) != NULL) { |
428870ff | 3813 | *cp = '\0'; |
671c9354 DM |
3814 | /* |
3815 | * Find the "sendsnap", the final snapshot in a replication | |
3816 | * stream. zfs_receive_one() handles certain errors | |
3817 | * differently, depending on if the contained stream is the | |
3818 | * last one or not. | |
3819 | */ | |
3820 | sendsnap = (cp + 1); | |
3821 | } | |
34dc7c2f BB |
3822 | |
3823 | /* Finally, receive each contained stream */ | |
3824 | do { | |
3825 | /* | |
3826 | * we should figure out if it has a recoverable | |
3827 | * error, in which case do a recv_skip() and drive on. | |
3828 | * Note, if we fail due to already having this guid, | |
3829 | * zfs_receive_one() will take care of it (ie, | |
3830 | * recv_skip() and return 0). | |
3831 | */ | |
fcff0f35 | 3832 | error = zfs_receive_impl(hdl, destname, NULL, flags, fd, |
196bee4c | 3833 | sendfs, stream_nv, stream_avl, top_zfs, sendsnap, cmdprops); |
34dc7c2f BB |
3834 | if (error == ENODATA) { |
3835 | error = 0; | |
3836 | break; | |
3837 | } | |
3838 | anyerr |= error; | |
3839 | } while (error == 0); | |
3840 | ||
4c3c6b6c | 3841 | if (drr->drr_payloadlen != 0 && recursive && fromsnap != NULL) { |
34dc7c2f BB |
3842 | /* |
3843 | * Now that we have the fs's they sent us, try the | |
3844 | * renames again. | |
3845 | */ | |
3846 | softerr = recv_incremental_replication(hdl, tofs, flags, | |
428870ff | 3847 | stream_nv, stream_avl, NULL); |
34dc7c2f BB |
3848 | } |
3849 | ||
bb61cc31 TC |
3850 | if (raw && softerr == 0 && *top_zfs != NULL) { |
3851 | softerr = recv_fix_encryption_hierarchy(hdl, *top_zfs, | |
7633c0ae | 3852 | stream_nv); |
b5256303 TC |
3853 | } |
3854 | ||
34dc7c2f BB |
3855 | out: |
3856 | fsavl_destroy(stream_avl); | |
60a2434b | 3857 | fnvlist_free(stream_nv); |
34dc7c2f BB |
3858 | if (softerr) |
3859 | error = -2; | |
3860 | if (anyerr) | |
3861 | error = -1; | |
3862 | return (error); | |
3863 | } | |
3864 | ||
428870ff BB |
3865 | static void |
3866 | trunc_prop_errs(int truncated) | |
3867 | { | |
3868 | ASSERT(truncated != 0); | |
3869 | ||
3870 | if (truncated == 1) | |
3871 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
3872 | "1 more property could not be set\n")); | |
3873 | else | |
3874 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
3875 | "%d more properties could not be set\n"), truncated); | |
3876 | } | |
3877 | ||
34dc7c2f BB |
3878 | static int |
3879 | recv_skip(libzfs_handle_t *hdl, int fd, boolean_t byteswap) | |
3880 | { | |
3881 | dmu_replay_record_t *drr; | |
f1512ee6 | 3882 | void *buf = zfs_alloc(hdl, SPA_MAXBLOCKSIZE); |
870e7a52 | 3883 | uint64_t payload_size; |
d68a2bfa | 3884 | char errbuf[ERRBUFLEN]; |
428870ff BB |
3885 | |
3886 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
870e7a52 | 3887 | "cannot receive")); |
34dc7c2f BB |
3888 | |
3889 | /* XXX would be great to use lseek if possible... */ | |
3890 | drr = buf; | |
3891 | ||
3892 | while (recv_read(hdl, fd, drr, sizeof (dmu_replay_record_t), | |
3893 | byteswap, NULL) == 0) { | |
3894 | if (byteswap) | |
3895 | drr->drr_type = BSWAP_32(drr->drr_type); | |
3896 | ||
3897 | switch (drr->drr_type) { | |
3898 | case DRR_BEGIN: | |
428870ff | 3899 | if (drr->drr_payloadlen != 0) { |
47dfff3b MA |
3900 | (void) recv_read(hdl, fd, buf, |
3901 | drr->drr_payloadlen, B_FALSE, NULL); | |
428870ff | 3902 | } |
34dc7c2f BB |
3903 | break; |
3904 | ||
3905 | case DRR_END: | |
3906 | free(buf); | |
3907 | return (0); | |
3908 | ||
3909 | case DRR_OBJECT: | |
3910 | if (byteswap) { | |
3911 | drr->drr_u.drr_object.drr_bonuslen = | |
3912 | BSWAP_32(drr->drr_u.drr_object. | |
3913 | drr_bonuslen); | |
870e7a52 TC |
3914 | drr->drr_u.drr_object.drr_raw_bonuslen = |
3915 | BSWAP_32(drr->drr_u.drr_object. | |
3916 | drr_raw_bonuslen); | |
34dc7c2f | 3917 | } |
870e7a52 TC |
3918 | |
3919 | payload_size = | |
3920 | DRR_OBJECT_PAYLOAD_SIZE(&drr->drr_u.drr_object); | |
3921 | (void) recv_read(hdl, fd, buf, payload_size, | |
34dc7c2f BB |
3922 | B_FALSE, NULL); |
3923 | break; | |
3924 | ||
3925 | case DRR_WRITE: | |
3926 | if (byteswap) { | |
2aa34383 DK |
3927 | drr->drr_u.drr_write.drr_logical_size = |
3928 | BSWAP_64( | |
3929 | drr->drr_u.drr_write.drr_logical_size); | |
3930 | drr->drr_u.drr_write.drr_compressed_size = | |
3931 | BSWAP_64( | |
3932 | drr->drr_u.drr_write.drr_compressed_size); | |
34dc7c2f | 3933 | } |
870e7a52 | 3934 | payload_size = |
2aa34383 | 3935 | DRR_WRITE_PAYLOAD_SIZE(&drr->drr_u.drr_write); |
7a6c12fd | 3936 | assert(payload_size <= SPA_MAXBLOCKSIZE); |
34dc7c2f | 3937 | (void) recv_read(hdl, fd, buf, |
2aa34383 | 3938 | payload_size, B_FALSE, NULL); |
34dc7c2f | 3939 | break; |
428870ff BB |
3940 | case DRR_SPILL: |
3941 | if (byteswap) { | |
9f8026c8 | 3942 | drr->drr_u.drr_spill.drr_length = |
428870ff | 3943 | BSWAP_64(drr->drr_u.drr_spill.drr_length); |
870e7a52 TC |
3944 | drr->drr_u.drr_spill.drr_compressed_size = |
3945 | BSWAP_64(drr->drr_u.drr_spill. | |
3946 | drr_compressed_size); | |
428870ff | 3947 | } |
870e7a52 TC |
3948 | |
3949 | payload_size = | |
3950 | DRR_SPILL_PAYLOAD_SIZE(&drr->drr_u.drr_spill); | |
3951 | (void) recv_read(hdl, fd, buf, payload_size, | |
3952 | B_FALSE, NULL); | |
428870ff | 3953 | break; |
9b67f605 MA |
3954 | case DRR_WRITE_EMBEDDED: |
3955 | if (byteswap) { | |
3956 | drr->drr_u.drr_write_embedded.drr_psize = | |
3957 | BSWAP_32(drr->drr_u.drr_write_embedded. | |
3958 | drr_psize); | |
3959 | } | |
3960 | (void) recv_read(hdl, fd, buf, | |
3961 | P2ROUNDUP(drr->drr_u.drr_write_embedded.drr_psize, | |
3962 | 8), B_FALSE, NULL); | |
3963 | break; | |
30af21b0 | 3964 | case DRR_OBJECT_RANGE: |
428870ff | 3965 | case DRR_WRITE_BYREF: |
34dc7c2f BB |
3966 | case DRR_FREEOBJECTS: |
3967 | case DRR_FREE: | |
3968 | break; | |
3969 | ||
3970 | default: | |
428870ff BB |
3971 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
3972 | "invalid record type")); | |
fad5fb01 | 3973 | free(buf); |
428870ff | 3974 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); |
34dc7c2f BB |
3975 | } |
3976 | } | |
3977 | ||
3978 | free(buf); | |
3979 | return (-1); | |
3980 | } | |
3981 | ||
47dfff3b MA |
3982 | static void |
3983 | recv_ecksum_set_aux(libzfs_handle_t *hdl, const char *target_snap, | |
7145123b | 3984 | boolean_t resumable, boolean_t checksum) |
47dfff3b | 3985 | { |
eca7b760 | 3986 | char target_fs[ZFS_MAX_DATASET_NAME_LEN]; |
47dfff3b | 3987 | |
7145123b PD |
3988 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, (checksum ? |
3989 | "checksum mismatch" : "incomplete stream"))); | |
47dfff3b MA |
3990 | |
3991 | if (!resumable) | |
3992 | return; | |
3993 | (void) strlcpy(target_fs, target_snap, sizeof (target_fs)); | |
3994 | *strchr(target_fs, '@') = '\0'; | |
3995 | zfs_handle_t *zhp = zfs_open(hdl, target_fs, | |
3996 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
3997 | if (zhp == NULL) | |
3998 | return; | |
3999 | ||
4000 | char token_buf[ZFS_MAXPROPLEN]; | |
4001 | int error = zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, | |
4002 | token_buf, sizeof (token_buf), | |
4003 | NULL, NULL, 0, B_TRUE); | |
4004 | if (error == 0) { | |
4005 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4006 | "checksum mismatch or incomplete stream.\n" | |
4007 | "Partially received snapshot is saved.\n" | |
4008 | "A resuming stream can be generated on the sending " | |
4009 | "system by running:\n" | |
4010 | " zfs send -t %s"), | |
4011 | token_buf); | |
4012 | } | |
4013 | zfs_close(zhp); | |
4014 | } | |
4015 | ||
a3eeab2d | 4016 | /* |
4017 | * Prepare a new nvlist of properties that are to override (-o) or be excluded | |
4018 | * (-x) from the received dataset | |
4019 | * recvprops: received properties from the send stream | |
4020 | * cmdprops: raw input properties from command line | |
4021 | * origprops: properties, both locally-set and received, currently set on the | |
4022 | * target dataset if it exists, NULL otherwise. | |
4023 | * oxprops: valid output override (-o) and excluded (-x) properties | |
4024 | */ | |
4025 | static int | |
d9c460a0 TC |
4026 | zfs_setup_cmdline_props(libzfs_handle_t *hdl, zfs_type_t type, |
4027 | char *fsname, boolean_t zoned, boolean_t recursive, boolean_t newfs, | |
4028 | boolean_t raw, boolean_t toplevel, nvlist_t *recvprops, nvlist_t *cmdprops, | |
4029 | nvlist_t *origprops, nvlist_t **oxprops, uint8_t **wkeydata_out, | |
4030 | uint_t *wkeylen_out, const char *errbuf) | |
a3eeab2d | 4031 | { |
4032 | nvpair_t *nvp; | |
4033 | nvlist_t *oprops, *voprops; | |
4034 | zfs_handle_t *zhp = NULL; | |
4035 | zpool_handle_t *zpool_hdl = NULL; | |
d9c460a0 | 4036 | char *cp; |
a3eeab2d | 4037 | int ret = 0; |
d9c460a0 | 4038 | char namebuf[ZFS_MAX_DATASET_NAME_LEN]; |
a3eeab2d | 4039 | |
4040 | if (nvlist_empty(cmdprops)) | |
4041 | return (0); /* No properties to override or exclude */ | |
4042 | ||
4043 | *oxprops = fnvlist_alloc(); | |
4044 | oprops = fnvlist_alloc(); | |
4045 | ||
d9c460a0 TC |
4046 | strlcpy(namebuf, fsname, ZFS_MAX_DATASET_NAME_LEN); |
4047 | ||
4048 | /* | |
4049 | * Get our dataset handle. The target dataset may not exist yet. | |
4050 | */ | |
4051 | if (zfs_dataset_exists(hdl, namebuf, ZFS_TYPE_DATASET)) { | |
4052 | zhp = zfs_open(hdl, namebuf, ZFS_TYPE_DATASET); | |
4053 | if (zhp == NULL) { | |
4054 | ret = -1; | |
4055 | goto error; | |
4056 | } | |
4057 | } | |
4058 | ||
4059 | /* open the zpool handle */ | |
4060 | cp = strchr(namebuf, '/'); | |
4061 | if (cp != NULL) | |
4062 | *cp = '\0'; | |
4063 | zpool_hdl = zpool_open(hdl, namebuf); | |
4064 | if (zpool_hdl == NULL) { | |
4065 | ret = -1; | |
4066 | goto error; | |
4067 | } | |
4068 | ||
4069 | /* restore namebuf to match fsname for later use */ | |
4070 | if (cp != NULL) | |
4071 | *cp = '/'; | |
4072 | ||
a3eeab2d | 4073 | /* |
4074 | * first iteration: process excluded (-x) properties now and gather | |
4075 | * added (-o) properties to be later processed by zfs_valid_proplist() | |
4076 | */ | |
4077 | nvp = NULL; | |
4078 | while ((nvp = nvlist_next_nvpair(cmdprops, nvp)) != NULL) { | |
4079 | const char *name = nvpair_name(nvp); | |
4080 | zfs_prop_t prop = zfs_name_to_prop(name); | |
4081 | ||
4476ccd9 RE |
4082 | /* |
4083 | * It turns out, if we don't normalize "aliased" names | |
4084 | * e.g. compress= against the "real" names (e.g. compression) | |
4085 | * here, then setting/excluding them does not work as | |
4086 | * intended. | |
4087 | * | |
4088 | * But since user-defined properties wouldn't have a valid | |
4089 | * mapping here, we do this conditional dance. | |
4090 | */ | |
4091 | const char *newname = name; | |
4092 | if (prop >= ZFS_PROP_TYPE) | |
4093 | newname = zfs_prop_to_name(prop); | |
4094 | ||
a3eeab2d | 4095 | /* "origin" is processed separately, don't handle it here */ |
4096 | if (prop == ZFS_PROP_ORIGIN) | |
4097 | continue; | |
4098 | ||
d9c460a0 TC |
4099 | /* raw streams can't override encryption properties */ |
4100 | if ((zfs_prop_encryption_key_param(prop) || | |
b4238327 | 4101 | prop == ZFS_PROP_ENCRYPTION) && raw) { |
d9c460a0 TC |
4102 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4103 | "encryption property '%s' cannot " | |
b4238327 TC |
4104 | "be set or excluded for raw streams."), name); |
4105 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); | |
4106 | goto error; | |
4107 | } | |
4108 | ||
4109 | /* incremental streams can only exclude encryption properties */ | |
4110 | if ((zfs_prop_encryption_key_param(prop) || | |
4111 | prop == ZFS_PROP_ENCRYPTION) && !newfs && | |
4112 | nvpair_type(nvp) != DATA_TYPE_BOOLEAN) { | |
4113 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4114 | "encryption property '%s' cannot " | |
4115 | "be set for incremental streams."), name); | |
d9c460a0 TC |
4116 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); |
4117 | goto error; | |
4118 | } | |
4119 | ||
a3eeab2d | 4120 | switch (nvpair_type(nvp)) { |
4121 | case DATA_TYPE_BOOLEAN: /* -x property */ | |
4122 | /* | |
4123 | * DATA_TYPE_BOOLEAN is the way we're asked to "exclude" | |
4124 | * a property: this is done by forcing an explicit | |
4125 | * inherit on the destination so the effective value is | |
4126 | * not the one we received from the send stream. | |
b0269cd8 I |
4127 | */ |
4128 | if (!zfs_prop_valid_for_type(prop, type, B_FALSE) && | |
4129 | !zfs_prop_user(name)) { | |
4130 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
4131 | "Warning: %s: property '%s' does not " | |
4132 | "apply to datasets of this type\n"), | |
4133 | fsname, name); | |
4134 | continue; | |
4135 | } | |
4136 | /* | |
a3eeab2d | 4137 | * We do this only if the property is not already |
4138 | * locally-set, in which case its value will take | |
4139 | * priority over the received anyway. | |
4140 | */ | |
4476ccd9 | 4141 | if (nvlist_exists(origprops, newname)) { |
a3eeab2d | 4142 | nvlist_t *attrs; |
b4238327 | 4143 | char *source = NULL; |
a3eeab2d | 4144 | |
4476ccd9 RE |
4145 | attrs = fnvlist_lookup_nvlist(origprops, |
4146 | newname); | |
b4238327 TC |
4147 | if (nvlist_lookup_string(attrs, |
4148 | ZPROP_SOURCE, &source) == 0 && | |
4149 | strcmp(source, ZPROP_SOURCE_VAL_RECVD) != 0) | |
a3eeab2d | 4150 | continue; |
4151 | } | |
4152 | /* | |
4153 | * We can't force an explicit inherit on non-inheritable | |
4154 | * properties: if we're asked to exclude this kind of | |
4155 | * values we remove them from "recvprops" input nvlist. | |
4156 | */ | |
63652e15 DS |
4157 | if (!zfs_prop_user(name) && /* can be inherited too */ |
4158 | !zfs_prop_inheritable(prop) && | |
4476ccd9 RE |
4159 | nvlist_exists(recvprops, newname)) |
4160 | fnvlist_remove(recvprops, newname); | |
a3eeab2d | 4161 | else |
4476ccd9 | 4162 | fnvlist_add_boolean(*oxprops, newname); |
a3eeab2d | 4163 | break; |
4164 | case DATA_TYPE_STRING: /* -o property=value */ | |
b0269cd8 I |
4165 | /* |
4166 | * we're trying to override a property that does not | |
4167 | * make sense for this type of dataset, but we don't | |
4168 | * want to fail if the receive is recursive: this comes | |
4169 | * in handy when the send stream contains, for | |
4170 | * instance, a child ZVOL and we're trying to receive | |
4171 | * it with "-o atime=on" | |
4172 | */ | |
4173 | if (!zfs_prop_valid_for_type(prop, type, B_FALSE) && | |
4174 | !zfs_prop_user(name)) { | |
4175 | if (recursive) | |
4176 | continue; | |
4177 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4178 | "property '%s' does not apply to datasets " | |
4179 | "of this type"), name); | |
4180 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); | |
4181 | goto error; | |
4182 | } | |
4476ccd9 RE |
4183 | fnvlist_add_string(oprops, newname, |
4184 | fnvpair_value_string(nvp)); | |
a3eeab2d | 4185 | break; |
4186 | default: | |
4187 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4188 | "property '%s' must be a string or boolean"), name); | |
4189 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); | |
4190 | goto error; | |
4191 | } | |
4192 | } | |
4193 | ||
4194 | if (toplevel) { | |
4195 | /* convert override strings properties to native */ | |
4196 | if ((voprops = zfs_valid_proplist(hdl, ZFS_TYPE_DATASET, | |
b5256303 | 4197 | oprops, zoned, zhp, zpool_hdl, B_FALSE, errbuf)) == NULL) { |
a3eeab2d | 4198 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); |
4199 | goto error; | |
4200 | } | |
4201 | ||
d9c460a0 TC |
4202 | /* |
4203 | * zfs_crypto_create() requires the parent name. Get it | |
4204 | * by truncating the fsname copy stored in namebuf. | |
4205 | */ | |
4206 | cp = strrchr(namebuf, '/'); | |
4207 | if (cp != NULL) | |
4208 | *cp = '\0'; | |
4209 | ||
4210 | if (!raw && zfs_crypto_create(hdl, namebuf, voprops, NULL, | |
4211 | B_FALSE, wkeydata_out, wkeylen_out) != 0) { | |
4212 | fnvlist_free(voprops); | |
4213 | ret = zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf); | |
4214 | goto error; | |
4215 | } | |
4216 | ||
a3eeab2d | 4217 | /* second pass: process "-o" properties */ |
4218 | fnvlist_merge(*oxprops, voprops); | |
4219 | fnvlist_free(voprops); | |
4220 | } else { | |
4221 | /* override props on child dataset are inherited */ | |
4222 | nvp = NULL; | |
4223 | while ((nvp = nvlist_next_nvpair(oprops, nvp)) != NULL) { | |
4224 | const char *name = nvpair_name(nvp); | |
4225 | fnvlist_add_boolean(*oxprops, name); | |
4226 | } | |
4227 | } | |
4228 | ||
4229 | error: | |
d9c460a0 TC |
4230 | if (zhp != NULL) |
4231 | zfs_close(zhp); | |
4232 | if (zpool_hdl != NULL) | |
4233 | zpool_close(zpool_hdl); | |
a3eeab2d | 4234 | fnvlist_free(oprops); |
4235 | return (ret); | |
4236 | } | |
4237 | ||
34dc7c2f BB |
4238 | /* |
4239 | * Restores a backup of tosnap from the file descriptor specified by infd. | |
4240 | */ | |
4241 | static int | |
4242 | zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, | |
fcff0f35 PD |
4243 | const char *originsnap, recvflags_t *flags, dmu_replay_record_t *drr, |
4244 | dmu_replay_record_t *drr_noswap, const char *sendfs, nvlist_t *stream_nv, | |
196bee4c MA |
4245 | avl_tree_t *stream_avl, char **top_zfs, |
4246 | const char *finalsnap, nvlist_t *cmdprops) | |
34dc7c2f | 4247 | { |
67de71e6 | 4248 | struct timespec begin_time; |
428870ff | 4249 | int ioctl_err, ioctl_errno, err; |
34dc7c2f BB |
4250 | char *cp; |
4251 | struct drr_begin *drrb = &drr->drr_u.drr_begin; | |
d68a2bfa | 4252 | char errbuf[ERRBUFLEN]; |
428870ff | 4253 | const char *chopprefix; |
34dc7c2f | 4254 | boolean_t newfs = B_FALSE; |
a132c2b4 | 4255 | boolean_t stream_wantsnewfs, stream_resumingnewfs; |
43e52edd BB |
4256 | boolean_t newprops = B_FALSE; |
4257 | uint64_t read_bytes = 0; | |
4258 | uint64_t errflags = 0; | |
34dc7c2f BB |
4259 | uint64_t parent_snapguid = 0; |
4260 | prop_changelist_t *clp = NULL; | |
b128c09f | 4261 | nvlist_t *snapprops_nvlist = NULL; |
9c5e88b1 | 4262 | nvlist_t *snapholds_nvlist = NULL; |
428870ff | 4263 | zprop_errflags_t prop_errflags; |
43e52edd | 4264 | nvlist_t *prop_errors = NULL; |
428870ff | 4265 | boolean_t recursive; |
671c9354 | 4266 | char *snapname = NULL; |
43e52edd | 4267 | char destsnap[MAXPATHLEN * 2]; |
861166b0 | 4268 | char origin[MAXNAMELEN] = {0}; |
43e52edd | 4269 | char name[MAXPATHLEN]; |
861166b0 | 4270 | char tmp_keylocation[MAXNAMELEN] = {0}; |
a3eeab2d | 4271 | nvlist_t *rcvprops = NULL; /* props received from the send stream */ |
4272 | nvlist_t *oxprops = NULL; /* override (-o) and exclude (-x) props */ | |
4273 | nvlist_t *origprops = NULL; /* original props (if destination exists) */ | |
806739f9 | 4274 | zfs_type_t type = ZFS_TYPE_INVALID; |
bee7e4ff | 4275 | boolean_t toplevel = B_FALSE; |
a3eeab2d | 4276 | boolean_t zoned = B_FALSE; |
c03f0470 | 4277 | boolean_t hastoken = B_FALSE; |
30af21b0 | 4278 | boolean_t redacted; |
d9c460a0 TC |
4279 | uint8_t *wkeydata = NULL; |
4280 | uint_t wkeylen = 0; | |
34dc7c2f | 4281 | |
67de71e6 AZ |
4282 | #ifndef CLOCK_MONOTONIC_RAW |
4283 | #define CLOCK_MONOTONIC_RAW CLOCK_MONOTONIC | |
4284 | #endif | |
4285 | clock_gettime(CLOCK_MONOTONIC_RAW, &begin_time); | |
34dc7c2f BB |
4286 | |
4287 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4288 | "cannot receive")); | |
4289 | ||
428870ff BB |
4290 | recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == |
4291 | ENOENT); | |
4292 | ||
9c5e88b1 PZ |
4293 | /* Did the user request holds be skipped via zfs recv -k? */ |
4294 | boolean_t holds = flags->holds && !flags->skipholds; | |
4295 | ||
34dc7c2f | 4296 | if (stream_avl != NULL) { |
b5256303 | 4297 | char *keylocation = NULL; |
48f783de | 4298 | nvlist_t *lookup = NULL; |
b128c09f BB |
4299 | nvlist_t *fs = fsavl_find(stream_avl, drrb->drr_toguid, |
4300 | &snapname); | |
34dc7c2f BB |
4301 | |
4302 | (void) nvlist_lookup_uint64(fs, "parentfromsnap", | |
4303 | &parent_snapguid); | |
a3eeab2d | 4304 | err = nvlist_lookup_nvlist(fs, "props", &rcvprops); |
43e52edd | 4305 | if (err) { |
60a2434b | 4306 | rcvprops = fnvlist_alloc(); |
43e52edd BB |
4307 | newprops = B_TRUE; |
4308 | } | |
34dc7c2f | 4309 | |
b5256303 TC |
4310 | /* |
4311 | * The keylocation property may only be set on encryption roots, | |
4312 | * but this dataset might not become an encryption root until | |
83472fab | 4313 | * recv_fix_encryption_hierarchy() is called. That function |
b5256303 TC |
4314 | * will fixup the keylocation anyway, so we temporarily unset |
4315 | * the keylocation for now to avoid any errors from the receive | |
4316 | * ioctl. | |
4317 | */ | |
4318 | err = nvlist_lookup_string(rcvprops, | |
4319 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), &keylocation); | |
4320 | if (err == 0) { | |
4321 | strcpy(tmp_keylocation, keylocation); | |
4322 | (void) nvlist_remove_all(rcvprops, | |
4323 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION)); | |
4324 | } | |
4325 | ||
330d06f9 | 4326 | if (flags->canmountoff) { |
60a2434b RM |
4327 | fnvlist_add_uint64(rcvprops, |
4328 | zfs_prop_to_name(ZFS_PROP_CANMOUNT), 0); | |
9c5e88b1 | 4329 | } else if (newprops) { /* nothing in rcvprops, eliminate it */ |
60a2434b | 4330 | fnvlist_free(rcvprops); |
9c5e88b1 PZ |
4331 | rcvprops = NULL; |
4332 | newprops = B_FALSE; | |
34dc7c2f | 4333 | } |
48f783de | 4334 | if (0 == nvlist_lookup_nvlist(fs, "snapprops", &lookup)) { |
60a2434b RM |
4335 | snapprops_nvlist = fnvlist_lookup_nvlist(lookup, |
4336 | snapname); | |
48f783de | 4337 | } |
9c5e88b1 PZ |
4338 | if (holds) { |
4339 | if (0 == nvlist_lookup_nvlist(fs, "snapholds", | |
4340 | &lookup)) { | |
60a2434b RM |
4341 | snapholds_nvlist = fnvlist_lookup_nvlist( |
4342 | lookup, snapname); | |
9c5e88b1 PZ |
4343 | } |
4344 | } | |
34dc7c2f BB |
4345 | } |
4346 | ||
428870ff BB |
4347 | cp = NULL; |
4348 | ||
34dc7c2f BB |
4349 | /* |
4350 | * Determine how much of the snapshot name stored in the stream | |
4351 | * we are going to tack on to the name they specified on the | |
4352 | * command line, and how much we are going to chop off. | |
4353 | * | |
4354 | * If they specified a snapshot, chop the entire name stored in | |
4355 | * the stream. | |
4356 | */ | |
330d06f9 | 4357 | if (flags->istail) { |
428870ff BB |
4358 | /* |
4359 | * A filesystem was specified with -e. We want to tack on only | |
4360 | * the tail of the sent snapshot path. | |
4361 | */ | |
4362 | if (strchr(tosnap, '@')) { | |
4363 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
4364 | "argument - snapshot not allowed with -e")); | |
43e52edd BB |
4365 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); |
4366 | goto out; | |
428870ff BB |
4367 | } |
4368 | ||
4369 | chopprefix = strrchr(sendfs, '/'); | |
4370 | ||
4371 | if (chopprefix == NULL) { | |
4372 | /* | |
4373 | * The tail is the poolname, so we need to | |
4374 | * prepend a path separator. | |
4375 | */ | |
4376 | int len = strlen(drrb->drr_toname); | |
4377 | cp = malloc(len + 2); | |
4378 | cp[0] = '/'; | |
4379 | (void) strcpy(&cp[1], drrb->drr_toname); | |
4380 | chopprefix = cp; | |
4381 | } else { | |
4382 | chopprefix = drrb->drr_toname + (chopprefix - sendfs); | |
4383 | } | |
330d06f9 | 4384 | } else if (flags->isprefix) { |
34dc7c2f | 4385 | /* |
428870ff BB |
4386 | * A filesystem was specified with -d. We want to tack on |
4387 | * everything but the first element of the sent snapshot path | |
4388 | * (all but the pool name). | |
34dc7c2f BB |
4389 | */ |
4390 | if (strchr(tosnap, '@')) { | |
4391 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
4392 | "argument - snapshot not allowed with -d")); | |
43e52edd BB |
4393 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); |
4394 | goto out; | |
34dc7c2f | 4395 | } |
428870ff BB |
4396 | |
4397 | chopprefix = strchr(drrb->drr_toname, '/'); | |
4398 | if (chopprefix == NULL) | |
4399 | chopprefix = strchr(drrb->drr_toname, '@'); | |
34dc7c2f BB |
4400 | } else if (strchr(tosnap, '@') == NULL) { |
4401 | /* | |
428870ff BB |
4402 | * If a filesystem was specified without -d or -e, we want to |
4403 | * tack on everything after the fs specified by 'zfs send'. | |
34dc7c2f | 4404 | */ |
428870ff BB |
4405 | chopprefix = drrb->drr_toname + strlen(sendfs); |
4406 | } else { | |
4407 | /* A snapshot was specified as an exact path (no -d or -e). */ | |
4408 | if (recursive) { | |
4409 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4410 | "cannot specify snapshot name for multi-snapshot " | |
4411 | "stream")); | |
43e52edd BB |
4412 | err = zfs_error(hdl, EZFS_BADSTREAM, errbuf); |
4413 | goto out; | |
428870ff BB |
4414 | } |
4415 | chopprefix = drrb->drr_toname + strlen(drrb->drr_toname); | |
34dc7c2f | 4416 | } |
428870ff BB |
4417 | |
4418 | ASSERT(strstr(drrb->drr_toname, sendfs) == drrb->drr_toname); | |
bdbd5477 | 4419 | ASSERT(chopprefix > drrb->drr_toname || strchr(sendfs, '/') == NULL); |
4420 | ASSERT(chopprefix <= drrb->drr_toname + strlen(drrb->drr_toname) || | |
4421 | strchr(sendfs, '/') == NULL); | |
428870ff BB |
4422 | ASSERT(chopprefix[0] == '/' || chopprefix[0] == '@' || |
4423 | chopprefix[0] == '\0'); | |
34dc7c2f BB |
4424 | |
4425 | /* | |
43e52edd | 4426 | * Determine name of destination snapshot. |
34dc7c2f | 4427 | */ |
45cb520b | 4428 | (void) strlcpy(destsnap, tosnap, sizeof (destsnap)); |
43e52edd | 4429 | (void) strlcat(destsnap, chopprefix, sizeof (destsnap)); |
428870ff | 4430 | free(cp); |
43e52edd BB |
4431 | if (!zfs_name_valid(destsnap, ZFS_TYPE_SNAPSHOT)) { |
4432 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); | |
4433 | goto out; | |
34dc7c2f BB |
4434 | } |
4435 | ||
4436 | /* | |
43e52edd | 4437 | * Determine the name of the origin snapshot. |
34dc7c2f | 4438 | */ |
160af771 | 4439 | if (originsnap) { |
21a4f5cc | 4440 | (void) strlcpy(origin, originsnap, sizeof (origin)); |
160af771 GM |
4441 | if (flags->verbose) |
4442 | (void) printf("using provided clone origin %s\n", | |
4443 | origin); | |
4444 | } else if (drrb->drr_flags & DRR_FLAG_CLONE) { | |
43e52edd BB |
4445 | if (guid_to_name(hdl, destsnap, |
4446 | drrb->drr_fromguid, B_FALSE, origin) != 0) { | |
34dc7c2f BB |
4447 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4448 | "local origin for clone %s does not exist"), | |
43e52edd BB |
4449 | destsnap); |
4450 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4451 | goto out; | |
34dc7c2f | 4452 | } |
330d06f9 | 4453 | if (flags->verbose) |
43e52edd | 4454 | (void) printf("found clone origin %s\n", origin); |
34dc7c2f BB |
4455 | } |
4456 | ||
196bee4c | 4457 | if ((DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
652bdc9b MA |
4458 | DMU_BACKUP_FEATURE_DEDUP)) { |
4459 | (void) fprintf(stderr, | |
196bee4c MA |
4460 | gettext("ERROR: \"zfs receive\" no longer supports " |
4461 | "deduplicated send streams. Use\n" | |
4462 | "the \"zstream redup\" command to convert this stream " | |
4463 | "to a regular,\n" | |
4464 | "non-deduplicated stream.\n")); | |
4465 | err = zfs_error(hdl, EZFS_NOTSUP, errbuf); | |
4466 | goto out; | |
652bdc9b MA |
4467 | } |
4468 | ||
47dfff3b MA |
4469 | boolean_t resuming = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4470 | DMU_BACKUP_FEATURE_RESUMING; | |
b5256303 TC |
4471 | boolean_t raw = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4472 | DMU_BACKUP_FEATURE_RAW; | |
9b840763 TC |
4473 | boolean_t embedded = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4474 | DMU_BACKUP_FEATURE_EMBED_DATA; | |
b8864a23 | 4475 | stream_wantsnewfs = (drrb->drr_fromguid == 0 || |
47dfff3b | 4476 | (drrb->drr_flags & DRR_FLAG_CLONE) || originsnap) && !resuming; |
a132c2b4 AS |
4477 | stream_resumingnewfs = (drrb->drr_fromguid == 0 || |
4478 | (drrb->drr_flags & DRR_FLAG_CLONE) || originsnap) && resuming; | |
34dc7c2f BB |
4479 | |
4480 | if (stream_wantsnewfs) { | |
4481 | /* | |
4482 | * if the parent fs does not exist, look for it based on | |
4483 | * the parent snap GUID | |
4484 | */ | |
4485 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4486 | "cannot receive new filesystem stream")); | |
4487 | ||
43e52edd BB |
4488 | (void) strcpy(name, destsnap); |
4489 | cp = strrchr(name, '/'); | |
34dc7c2f BB |
4490 | if (cp) |
4491 | *cp = '\0'; | |
4492 | if (cp && | |
43e52edd | 4493 | !zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) { |
eca7b760 | 4494 | char suffix[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4495 | (void) strcpy(suffix, strrchr(destsnap, '/')); |
4496 | if (guid_to_name(hdl, name, parent_snapguid, | |
4497 | B_FALSE, destsnap) == 0) { | |
4498 | *strchr(destsnap, '@') = '\0'; | |
4499 | (void) strcat(destsnap, suffix); | |
34dc7c2f BB |
4500 | } |
4501 | } | |
4502 | } else { | |
4503 | /* | |
ebeb6f23 AG |
4504 | * If the fs does not exist, look for it based on the |
4505 | * fromsnap GUID. | |
34dc7c2f | 4506 | */ |
ebeb6f23 AG |
4507 | if (resuming) { |
4508 | (void) snprintf(errbuf, sizeof (errbuf), | |
4509 | dgettext(TEXT_DOMAIN, | |
4510 | "cannot receive resume stream")); | |
4511 | } else { | |
4512 | (void) snprintf(errbuf, sizeof (errbuf), | |
4513 | dgettext(TEXT_DOMAIN, | |
4514 | "cannot receive incremental stream")); | |
4515 | } | |
34dc7c2f | 4516 | |
43e52edd BB |
4517 | (void) strcpy(name, destsnap); |
4518 | *strchr(name, '@') = '\0'; | |
34dc7c2f | 4519 | |
428870ff BB |
4520 | /* |
4521 | * If the exact receive path was specified and this is the | |
4522 | * topmost path in the stream, then if the fs does not exist we | |
4523 | * should look no further. | |
4524 | */ | |
330d06f9 | 4525 | if ((flags->isprefix || (*(chopprefix = drrb->drr_toname + |
428870ff | 4526 | strlen(sendfs)) != '\0' && *chopprefix != '@')) && |
43e52edd | 4527 | !zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) { |
eca7b760 | 4528 | char snap[ZFS_MAX_DATASET_NAME_LEN]; |
43e52edd BB |
4529 | (void) strcpy(snap, strchr(destsnap, '@')); |
4530 | if (guid_to_name(hdl, name, drrb->drr_fromguid, | |
4531 | B_FALSE, destsnap) == 0) { | |
4532 | *strchr(destsnap, '@') = '\0'; | |
4533 | (void) strcat(destsnap, snap); | |
34dc7c2f BB |
4534 | } |
4535 | } | |
4536 | } | |
4537 | ||
43e52edd BB |
4538 | (void) strcpy(name, destsnap); |
4539 | *strchr(name, '@') = '\0'; | |
34dc7c2f | 4540 | |
30af21b0 PD |
4541 | redacted = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4542 | DMU_BACKUP_FEATURE_REDACTED; | |
4543 | ||
43e52edd BB |
4544 | if (zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) { |
4545 | zfs_cmd_t zc = {"\0"}; | |
34dc7c2f | 4546 | zfs_handle_t *zhp; |
4a385862 | 4547 | boolean_t encrypted; |
428870ff | 4548 | |
43e52edd BB |
4549 | (void) strcpy(zc.zc_name, name); |
4550 | ||
34dc7c2f | 4551 | /* |
47dfff3b MA |
4552 | * Destination fs exists. It must be one of these cases: |
4553 | * - an incremental send stream | |
4554 | * - the stream specifies a new fs (full stream or clone) | |
4555 | * and they want us to blow away the existing fs (and | |
4556 | * have therefore specified -F and removed any snapshots) | |
4557 | * - we are resuming a failed receive. | |
34dc7c2f | 4558 | */ |
34dc7c2f | 4559 | if (stream_wantsnewfs) { |
d8d418ff | 4560 | boolean_t is_volume = drrb->drr_type == DMU_OST_ZVOL; |
330d06f9 | 4561 | if (!flags->force) { |
34dc7c2f BB |
4562 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4563 | "destination '%s' exists\n" | |
43e52edd BB |
4564 | "must specify -F to overwrite it"), name); |
4565 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
4566 | goto out; | |
34dc7c2f | 4567 | } |
b834b58a | 4568 | if (zfs_ioctl(hdl, ZFS_IOC_SNAPSHOT_LIST_NEXT, |
34dc7c2f | 4569 | &zc) == 0) { |
34dc7c2f BB |
4570 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4571 | "destination has snapshots (eg. %s)\n" | |
4572 | "must destroy them to overwrite it"), | |
b53cb02d | 4573 | zc.zc_name); |
43e52edd BB |
4574 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); |
4575 | goto out; | |
34dc7c2f | 4576 | } |
d8d418ff | 4577 | if (is_volume && strrchr(name, '/') == NULL) { |
4578 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4579 | "destination %s is the root dataset\n" | |
4580 | "cannot overwrite with a ZVOL"), | |
4581 | name); | |
4582 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
4583 | goto out; | |
4584 | } | |
4585 | if (is_volume && | |
b834b58a | 4586 | zfs_ioctl(hdl, ZFS_IOC_DATASET_LIST_NEXT, |
d8d418ff | 4587 | &zc) == 0) { |
4588 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4589 | "destination has children (eg. %s)\n" | |
4590 | "cannot overwrite with a ZVOL"), | |
4591 | zc.zc_name); | |
4592 | err = zfs_error(hdl, EZFS_WRONG_PARENT, errbuf); | |
4593 | goto out; | |
4594 | } | |
34dc7c2f BB |
4595 | } |
4596 | ||
43e52edd | 4597 | if ((zhp = zfs_open(hdl, name, |
34dc7c2f | 4598 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) == NULL) { |
43e52edd BB |
4599 | err = -1; |
4600 | goto out; | |
34dc7c2f BB |
4601 | } |
4602 | ||
4603 | if (stream_wantsnewfs && | |
4604 | zhp->zfs_dmustats.dds_origin[0]) { | |
34dc7c2f BB |
4605 | zfs_close(zhp); |
4606 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4607 | "destination '%s' is a clone\n" | |
43e52edd BB |
4608 | "must destroy it to overwrite it"), name); |
4609 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
4610 | goto out; | |
34dc7c2f BB |
4611 | } |
4612 | ||
b5256303 | 4613 | /* |
4a385862 | 4614 | * Raw sends can not be performed as an incremental on top |
78595377 | 4615 | * of existing unencrypted datasets. zfs recv -F can't be |
4a385862 TC |
4616 | * used to blow away an existing encrypted filesystem. This |
4617 | * is because it would require the dsl dir to point to the | |
4618 | * new key (or lack of a key) and the old key at the same | |
4619 | * time. The -F flag may still be used for deleting | |
4620 | * intermediate snapshots that would otherwise prevent the | |
4621 | * receive from working. | |
b5256303 | 4622 | */ |
4a385862 TC |
4623 | encrypted = zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != |
4624 | ZIO_CRYPT_OFF; | |
4625 | if (!stream_wantsnewfs && !encrypted && raw) { | |
b5256303 TC |
4626 | zfs_close(zhp); |
4627 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4a385862 TC |
4628 | "cannot perform raw receive on top of " |
4629 | "existing unencrypted dataset")); | |
b5256303 TC |
4630 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); |
4631 | goto out; | |
4632 | } | |
4633 | ||
4a385862 TC |
4634 | if (stream_wantsnewfs && flags->force && |
4635 | ((raw && !encrypted) || encrypted)) { | |
4636 | zfs_close(zhp); | |
4637 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4638 | "zfs receive -F cannot be used to destroy an " | |
4639 | "encrypted filesystem or overwrite an " | |
4640 | "unencrypted one with an encrypted one")); | |
4641 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); | |
4642 | goto out; | |
4643 | } | |
b5256303 | 4644 | |
330d06f9 | 4645 | if (!flags->dryrun && zhp->zfs_type == ZFS_TYPE_FILESYSTEM && |
a132c2b4 | 4646 | (stream_wantsnewfs || stream_resumingnewfs)) { |
34dc7c2f | 4647 | /* We can't do online recv in this case */ |
a57d3d45 MZ |
4648 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
4649 | flags->forceunmount ? MS_FORCE : 0); | |
34dc7c2f | 4650 | if (clp == NULL) { |
45d1cae3 | 4651 | zfs_close(zhp); |
43e52edd BB |
4652 | err = -1; |
4653 | goto out; | |
34dc7c2f BB |
4654 | } |
4655 | if (changelist_prefix(clp) != 0) { | |
4656 | changelist_free(clp); | |
45d1cae3 | 4657 | zfs_close(zhp); |
43e52edd BB |
4658 | err = -1; |
4659 | goto out; | |
34dc7c2f BB |
4660 | } |
4661 | } | |
47dfff3b MA |
4662 | |
4663 | /* | |
4664 | * If we are resuming a newfs, set newfs here so that we will | |
4665 | * mount it if the recv succeeds this time. We can tell | |
4666 | * that it was a newfs on the first recv because the fs | |
4667 | * itself will be inconsistent (if the fs existed when we | |
4668 | * did the first recv, we would have received it into | |
4669 | * .../%recv). | |
4670 | */ | |
4671 | if (resuming && zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT)) | |
4672 | newfs = B_TRUE; | |
4673 | ||
a3eeab2d | 4674 | /* we want to know if we're zoned when validating -o|-x props */ |
4675 | zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); | |
4676 | ||
c03f0470 | 4677 | /* may need this info later, get it now we have zhp around */ |
4678 | if (zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, NULL, 0, | |
4679 | NULL, NULL, 0, B_TRUE) == 0) | |
4680 | hastoken = B_TRUE; | |
4681 | ||
a3eeab2d | 4682 | /* gather existing properties on destination */ |
4683 | origprops = fnvlist_alloc(); | |
4684 | fnvlist_merge(origprops, zhp->zfs_props); | |
4685 | fnvlist_merge(origprops, zhp->zfs_user_props); | |
4686 | ||
34dc7c2f BB |
4687 | zfs_close(zhp); |
4688 | } else { | |
b5256303 TC |
4689 | zfs_handle_t *zhp; |
4690 | ||
34dc7c2f BB |
4691 | /* |
4692 | * Destination filesystem does not exist. Therefore we better | |
4693 | * be creating a new filesystem (either from a full backup, or | |
4694 | * a clone). It would therefore be invalid if the user | |
4695 | * specified only the pool name (i.e. if the destination name | |
4696 | * contained no slash character). | |
4697 | */ | |
a64f903b GN |
4698 | cp = strrchr(name, '/'); |
4699 | ||
4700 | if (!stream_wantsnewfs || cp == NULL) { | |
34dc7c2f | 4701 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
43e52edd BB |
4702 | "destination '%s' does not exist"), name); |
4703 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4704 | goto out; | |
34dc7c2f BB |
4705 | } |
4706 | ||
4707 | /* | |
4708 | * Trim off the final dataset component so we perform the | |
4709 | * recvbackup ioctl to the filesystems's parent. | |
4710 | */ | |
4711 | *cp = '\0'; | |
4712 | ||
330d06f9 | 4713 | if (flags->isprefix && !flags->istail && !flags->dryrun && |
43e52edd BB |
4714 | create_parents(hdl, destsnap, strlen(tosnap)) != 0) { |
4715 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); | |
4716 | goto out; | |
34dc7c2f BB |
4717 | } |
4718 | ||
d8d418ff | 4719 | /* validate parent */ |
4720 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); | |
4721 | if (zhp == NULL) { | |
4722 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); | |
4723 | goto out; | |
4724 | } | |
4725 | if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { | |
4726 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4727 | "parent '%s' is not a filesystem"), name); | |
4728 | err = zfs_error(hdl, EZFS_WRONG_PARENT, errbuf); | |
4729 | zfs_close(zhp); | |
4730 | goto out; | |
4731 | } | |
4732 | ||
d8d418ff | 4733 | zfs_close(zhp); |
b5256303 | 4734 | |
34dc7c2f | 4735 | newfs = B_TRUE; |
b5256303 | 4736 | *cp = '/'; |
34dc7c2f BB |
4737 | } |
4738 | ||
330d06f9 | 4739 | if (flags->verbose) { |
34dc7c2f | 4740 | (void) printf("%s %s stream of %s into %s\n", |
330d06f9 | 4741 | flags->dryrun ? "would receive" : "receiving", |
34dc7c2f | 4742 | drrb->drr_fromguid ? "incremental" : "full", |
43e52edd | 4743 | drrb->drr_toname, destsnap); |
34dc7c2f BB |
4744 | (void) fflush(stdout); |
4745 | } | |
4746 | ||
bb61cc31 TC |
4747 | /* |
4748 | * If this is the top-level dataset, record it so we can use it | |
4749 | * for recursive operations later. | |
4750 | */ | |
4751 | if (top_zfs != NULL && | |
4752 | (*top_zfs == NULL || strcmp(*top_zfs, name) == 0)) { | |
bee7e4ff | 4753 | toplevel = B_TRUE; |
bb61cc31 TC |
4754 | if (*top_zfs == NULL) |
4755 | *top_zfs = zfs_strdup(hdl, name); | |
4756 | } | |
4757 | ||
a3eeab2d | 4758 | if (drrb->drr_type == DMU_OST_ZVOL) { |
4759 | type = ZFS_TYPE_VOLUME; | |
4760 | } else if (drrb->drr_type == DMU_OST_ZFS) { | |
4761 | type = ZFS_TYPE_FILESYSTEM; | |
4762 | } else { | |
4763 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4764 | "invalid record type: 0x%d"), drrb->drr_type); | |
4765 | err = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
4766 | goto out; | |
4767 | } | |
d9c460a0 TC |
4768 | if ((err = zfs_setup_cmdline_props(hdl, type, name, zoned, recursive, |
4769 | stream_wantsnewfs, raw, toplevel, rcvprops, cmdprops, origprops, | |
4770 | &oxprops, &wkeydata, &wkeylen, errbuf)) != 0) | |
a3eeab2d | 4771 | goto out; |
4772 | ||
da689887 TC |
4773 | /* |
4774 | * When sending with properties (zfs send -p), the encryption property | |
4775 | * is not included because it is a SETONCE property and therefore | |
4776 | * treated as read only. However, we are always able to determine its | |
4777 | * value because raw sends will include it in the DRR_BDEGIN payload | |
4778 | * and non-raw sends with properties are not allowed for encrypted | |
4779 | * datasets. Therefore, if this is a non-raw properties stream, we can | |
4780 | * infer that the value should be ZIO_CRYPT_OFF and manually add that | |
4781 | * to the received properties. | |
4782 | */ | |
4783 | if (stream_wantsnewfs && !raw && rcvprops != NULL && | |
4784 | !nvlist_exists(cmdprops, zfs_prop_to_name(ZFS_PROP_ENCRYPTION))) { | |
4785 | if (oxprops == NULL) | |
4786 | oxprops = fnvlist_alloc(); | |
4787 | fnvlist_add_uint64(oxprops, | |
4788 | zfs_prop_to_name(ZFS_PROP_ENCRYPTION), ZIO_CRYPT_OFF); | |
4789 | } | |
4790 | ||
ee6615e0 I |
4791 | if (flags->dryrun) { |
4792 | void *buf = zfs_alloc(hdl, SPA_MAXBLOCKSIZE); | |
4793 | ||
4794 | /* | |
4795 | * We have read the DRR_BEGIN record, but we have | |
4796 | * not yet read the payload. For non-dryrun sends | |
4797 | * this will be done by the kernel, so we must | |
4798 | * emulate that here, before attempting to read | |
4799 | * more records. | |
4800 | */ | |
4801 | err = recv_read(hdl, infd, buf, drr->drr_payloadlen, | |
4802 | flags->byteswap, NULL); | |
4803 | free(buf); | |
4804 | if (err != 0) | |
4805 | goto out; | |
4806 | ||
4807 | err = recv_skip(hdl, infd, flags->byteswap); | |
4808 | goto out; | |
4809 | } | |
4810 | ||
d9c460a0 TC |
4811 | err = ioctl_err = lzc_receive_with_cmdprops(destsnap, rcvprops, |
4812 | oxprops, wkeydata, wkeylen, origin, flags->force, flags->resumable, | |
196bee4c MA |
4813 | raw, infd, drr_noswap, -1, &read_bytes, &errflags, |
4814 | NULL, &prop_errors); | |
43e52edd BB |
4815 | ioctl_errno = ioctl_err; |
4816 | prop_errflags = errflags; | |
428870ff BB |
4817 | |
4818 | if (err == 0) { | |
428870ff BB |
4819 | nvpair_t *prop_err = NULL; |
4820 | ||
4821 | while ((prop_err = nvlist_next_nvpair(prop_errors, | |
4822 | prop_err)) != NULL) { | |
4823 | char tbuf[1024]; | |
4824 | zfs_prop_t prop; | |
4825 | int intval; | |
4826 | ||
4827 | prop = zfs_name_to_prop(nvpair_name(prop_err)); | |
4828 | (void) nvpair_value_int32(prop_err, &intval); | |
4829 | if (strcmp(nvpair_name(prop_err), | |
4830 | ZPROP_N_MORE_ERRORS) == 0) { | |
4831 | trunc_prop_errs(intval); | |
4832 | break; | |
671c9354 DM |
4833 | } else if (snapname == NULL || finalsnap == NULL || |
4834 | strcmp(finalsnap, snapname) == 0 || | |
4835 | strcmp(nvpair_name(prop_err), | |
4836 | zfs_prop_to_name(ZFS_PROP_REFQUOTA)) != 0) { | |
4837 | /* | |
4838 | * Skip the special case of, for example, | |
4839 | * "refquota", errors on intermediate | |
4840 | * snapshots leading up to a final one. | |
4841 | * That's why we have all of the checks above. | |
4842 | * | |
4843 | * See zfs_ioctl.c's extract_delay_props() for | |
4844 | * a list of props which can fail on | |
4845 | * intermediate snapshots, but shouldn't | |
4846 | * affect the overall receive. | |
4847 | */ | |
428870ff BB |
4848 | (void) snprintf(tbuf, sizeof (tbuf), |
4849 | dgettext(TEXT_DOMAIN, | |
4850 | "cannot receive %s property on %s"), | |
43e52edd | 4851 | nvpair_name(prop_err), name); |
428870ff BB |
4852 | zfs_setprop_error(hdl, prop, intval, tbuf); |
4853 | } | |
4854 | } | |
428870ff BB |
4855 | } |
4856 | ||
b128c09f | 4857 | if (err == 0 && snapprops_nvlist) { |
43e52edd | 4858 | zfs_cmd_t zc = {"\0"}; |
b128c09f | 4859 | |
43e52edd BB |
4860 | (void) strcpy(zc.zc_name, destsnap); |
4861 | zc.zc_cookie = B_TRUE; /* received */ | |
18dbf5c8 AZ |
4862 | zcmd_write_src_nvlist(hdl, &zc, snapprops_nvlist); |
4863 | (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
4864 | zcmd_free_nvlists(&zc); | |
b128c09f | 4865 | } |
9c5e88b1 PZ |
4866 | if (err == 0 && snapholds_nvlist) { |
4867 | nvpair_t *pair; | |
4868 | nvlist_t *holds, *errors = NULL; | |
4869 | int cleanup_fd = -1; | |
4870 | ||
4871 | VERIFY(0 == nvlist_alloc(&holds, 0, KM_SLEEP)); | |
4872 | for (pair = nvlist_next_nvpair(snapholds_nvlist, NULL); | |
4873 | pair != NULL; | |
4874 | pair = nvlist_next_nvpair(snapholds_nvlist, pair)) { | |
60a2434b | 4875 | fnvlist_add_string(holds, destsnap, nvpair_name(pair)); |
9c5e88b1 PZ |
4876 | } |
4877 | (void) lzc_hold(holds, cleanup_fd, &errors); | |
60a2434b RM |
4878 | fnvlist_free(snapholds_nvlist); |
4879 | fnvlist_free(holds); | |
9c5e88b1 | 4880 | } |
b128c09f | 4881 | |
428870ff | 4882 | if (err && (ioctl_errno == ENOENT || ioctl_errno == EEXIST)) { |
34dc7c2f BB |
4883 | /* |
4884 | * It may be that this snapshot already exists, | |
4885 | * in which case we want to consume & ignore it | |
4886 | * rather than failing. | |
4887 | */ | |
4888 | avl_tree_t *local_avl; | |
4889 | nvlist_t *local_nv, *fs; | |
43e52edd | 4890 | cp = strchr(destsnap, '@'); |
34dc7c2f BB |
4891 | |
4892 | /* | |
4893 | * XXX Do this faster by just iterating over snaps in | |
4894 | * this fs. Also if zc_value does not exist, we will | |
4895 | * get a strange "does not exist" error message. | |
4896 | */ | |
4897 | *cp = '\0'; | |
b5256303 | 4898 | if (gather_nvlist(hdl, destsnap, NULL, NULL, B_FALSE, B_TRUE, |
099fa7e4 PCG |
4899 | B_FALSE, B_FALSE, B_FALSE, B_FALSE, B_FALSE, B_FALSE, |
4900 | B_TRUE, &local_nv, &local_avl) == 0) { | |
34dc7c2f BB |
4901 | *cp = '@'; |
4902 | fs = fsavl_find(local_avl, drrb->drr_toguid, NULL); | |
4903 | fsavl_destroy(local_avl); | |
60a2434b | 4904 | fnvlist_free(local_nv); |
34dc7c2f BB |
4905 | |
4906 | if (fs != NULL) { | |
330d06f9 | 4907 | if (flags->verbose) { |
34dc7c2f | 4908 | (void) printf("snap %s already exists; " |
43e52edd | 4909 | "ignoring\n", destsnap); |
34dc7c2f | 4910 | } |
428870ff | 4911 | err = ioctl_err = recv_skip(hdl, infd, |
330d06f9 | 4912 | flags->byteswap); |
34dc7c2f BB |
4913 | } |
4914 | } | |
4915 | *cp = '@'; | |
4916 | } | |
4917 | ||
34dc7c2f BB |
4918 | if (ioctl_err != 0) { |
4919 | switch (ioctl_errno) { | |
4920 | case ENODEV: | |
43e52edd | 4921 | cp = strchr(destsnap, '@'); |
34dc7c2f BB |
4922 | *cp = '\0'; |
4923 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4924 | "most recent snapshot of %s does not\n" | |
43e52edd | 4925 | "match incremental source"), destsnap); |
34dc7c2f BB |
4926 | (void) zfs_error(hdl, EZFS_BADRESTORE, errbuf); |
4927 | *cp = '@'; | |
4928 | break; | |
4929 | case ETXTBSY: | |
4930 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4931 | "destination %s has been modified\n" | |
43e52edd | 4932 | "since most recent snapshot"), name); |
34dc7c2f BB |
4933 | (void) zfs_error(hdl, EZFS_BADRESTORE, errbuf); |
4934 | break; | |
b5256303 TC |
4935 | case EACCES: |
4936 | if (raw && stream_wantsnewfs) { | |
4937 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4938 | "failed to create encryption key")); | |
4939 | } else if (raw && !stream_wantsnewfs) { | |
4940 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4941 | "encryption key does not match " | |
4942 | "existing key")); | |
4943 | } else { | |
4944 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4945 | "inherited key must be loaded")); | |
4946 | } | |
4947 | (void) zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf); | |
4948 | break; | |
34dc7c2f | 4949 | case EEXIST: |
43e52edd | 4950 | cp = strchr(destsnap, '@'); |
34dc7c2f BB |
4951 | if (newfs) { |
4952 | /* it's the containing fs that exists */ | |
4953 | *cp = '\0'; | |
4954 | } | |
4955 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4956 | "destination already exists")); | |
4957 | (void) zfs_error_fmt(hdl, EZFS_EXISTS, | |
4958 | dgettext(TEXT_DOMAIN, "cannot restore to %s"), | |
43e52edd | 4959 | destsnap); |
34dc7c2f BB |
4960 | *cp = '@'; |
4961 | break; | |
4962 | case EINVAL: | |
2ba59fa9 | 4963 | if (flags->resumable) { |
43e52edd BB |
4964 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4965 | "kernel modules must be upgraded to " | |
4966 | "receive this stream.")); | |
2ba59fa9 | 4967 | } else if (embedded && !raw) { |
9b840763 TC |
4968 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4969 | "incompatible embedded data stream " | |
4970 | "feature with encrypted receive.")); | |
2ba59fa9 | 4971 | } |
34dc7c2f BB |
4972 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); |
4973 | break; | |
4974 | case ECKSUM: | |
7145123b PD |
4975 | case ZFS_ERR_STREAM_TRUNCATED: |
4976 | recv_ecksum_set_aux(hdl, destsnap, flags->resumable, | |
4977 | ioctl_err == ECKSUM); | |
34dc7c2f BB |
4978 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); |
4979 | break; | |
7bcb7f08 MA |
4980 | case ZFS_ERR_STREAM_LARGE_BLOCK_MISMATCH: |
4981 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4982 | "incremental send stream requires -L " | |
4983 | "(--large-block), to match previous receive.")); | |
4984 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
4985 | break; | |
428870ff BB |
4986 | case ENOTSUP: |
4987 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4988 | "pool must be upgraded to receive this stream.")); | |
4989 | (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); | |
4990 | break; | |
4991 | case EDQUOT: | |
4992 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
c03f0470 | 4993 | "destination %s space quota exceeded."), name); |
330d06f9 | 4994 | (void) zfs_error(hdl, EZFS_NOSPC, errbuf); |
428870ff | 4995 | break; |
f00ab3f2 TC |
4996 | case ZFS_ERR_FROM_IVSET_GUID_MISSING: |
4997 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
73c25a78 | 4998 | "IV set guid missing. See errata %u at " |
a2f944a1 RM |
4999 | "https://openzfs.github.io/openzfs-docs/msg/" |
5000 | "ZFS-8000-ER."), | |
f00ab3f2 TC |
5001 | ZPOOL_ERRATA_ZOL_8308_ENCRYPTION); |
5002 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5003 | break; | |
5004 | case ZFS_ERR_FROM_IVSET_GUID_MISMATCH: | |
5005 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5006 | "IV set guid mismatch. See the 'zfs receive' " | |
5007 | "man page section\n discussing the limitations " | |
5008 | "of raw encrypted send streams.")); | |
5009 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5010 | break; | |
caf9dd20 BB |
5011 | case ZFS_ERR_SPILL_BLOCK_FLAG_MISSING: |
5012 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5013 | "Spill block flag missing for raw send.\n" | |
5014 | "The zfs software on the sending system must " | |
5015 | "be updated.")); | |
5016 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5017 | break; | |
c03f0470 | 5018 | case EBUSY: |
5019 | if (hastoken) { | |
5020 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5021 | "destination %s contains " | |
5022 | "partially-complete state from " | |
5023 | "\"zfs receive -s\"."), name); | |
5024 | (void) zfs_error(hdl, EZFS_BUSY, errbuf); | |
5025 | break; | |
5026 | } | |
9a70e97f | 5027 | zfs_fallthrough; |
34dc7c2f BB |
5028 | default: |
5029 | (void) zfs_standard_error(hdl, ioctl_errno, errbuf); | |
5030 | } | |
5031 | } | |
5032 | ||
5033 | /* | |
428870ff BB |
5034 | * Mount the target filesystem (if created). Also mount any |
5035 | * children of the target filesystem if we did a replication | |
5036 | * receive (indicated by stream_avl being non-NULL). | |
34dc7c2f | 5037 | */ |
34dc7c2f | 5038 | if (clp) { |
89d43feb GM |
5039 | if (!flags->nomount) |
5040 | err |= changelist_postfix(clp); | |
34dc7c2f BB |
5041 | changelist_free(clp); |
5042 | } | |
5043 | ||
bb61cc31 TC |
5044 | if ((newfs || stream_avl) && type == ZFS_TYPE_FILESYSTEM && !redacted) |
5045 | flags->domount = B_TRUE; | |
5046 | ||
428870ff BB |
5047 | if (prop_errflags & ZPROP_ERR_NOCLEAR) { |
5048 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: " | |
43e52edd | 5049 | "failed to clear unreceived properties on %s"), name); |
428870ff BB |
5050 | (void) fprintf(stderr, "\n"); |
5051 | } | |
5052 | if (prop_errflags & ZPROP_ERR_NORESTORE) { | |
5053 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: " | |
43e52edd | 5054 | "failed to restore original properties on %s"), name); |
428870ff BB |
5055 | (void) fprintf(stderr, "\n"); |
5056 | } | |
5057 | ||
43e52edd BB |
5058 | if (err || ioctl_err) { |
5059 | err = -1; | |
5060 | goto out; | |
5061 | } | |
572e2857 | 5062 | |
330d06f9 | 5063 | if (flags->verbose) { |
34dc7c2f BB |
5064 | char buf1[64]; |
5065 | char buf2[64]; | |
43e52edd | 5066 | uint64_t bytes = read_bytes; |
67de71e6 AZ |
5067 | struct timespec delta; |
5068 | clock_gettime(CLOCK_MONOTONIC_RAW, &delta); | |
5069 | if (begin_time.tv_nsec > delta.tv_nsec) { | |
5070 | delta.tv_nsec = | |
5071 | 1000000000 + delta.tv_nsec - begin_time.tv_nsec; | |
5072 | delta.tv_sec -= 1; | |
5073 | } else | |
5074 | delta.tv_nsec -= begin_time.tv_nsec; | |
5075 | delta.tv_sec -= begin_time.tv_sec; | |
5076 | if (delta.tv_sec == 0 && delta.tv_nsec == 0) | |
5077 | delta.tv_nsec = 1; | |
5078 | double delta_f = delta.tv_sec + (delta.tv_nsec / 1e9); | |
e7fbeb60 | 5079 | zfs_nicebytes(bytes, buf1, sizeof (buf1)); |
67de71e6 | 5080 | zfs_nicebytes(bytes / delta_f, buf2, sizeof (buf2)); |
34dc7c2f | 5081 | |
67de71e6 AZ |
5082 | (void) printf("received %s stream in %.2f seconds (%s/sec)\n", |
5083 | buf1, delta_f, buf2); | |
34dc7c2f BB |
5084 | } |
5085 | ||
43e52edd BB |
5086 | err = 0; |
5087 | out: | |
5088 | if (prop_errors != NULL) | |
60a2434b | 5089 | fnvlist_free(prop_errors); |
43e52edd | 5090 | |
b5256303 | 5091 | if (tmp_keylocation[0] != '\0') { |
60a2434b RM |
5092 | fnvlist_add_string(rcvprops, |
5093 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), tmp_keylocation); | |
b5256303 TC |
5094 | } |
5095 | ||
43e52edd | 5096 | if (newprops) |
60a2434b | 5097 | fnvlist_free(rcvprops); |
a3eeab2d | 5098 | |
60a2434b RM |
5099 | fnvlist_free(oxprops); |
5100 | fnvlist_free(origprops); | |
43e52edd BB |
5101 | |
5102 | return (err); | |
34dc7c2f BB |
5103 | } |
5104 | ||
a3eeab2d | 5105 | /* |
5106 | * Check properties we were asked to override (both -o|-x) | |
5107 | */ | |
5108 | static boolean_t | |
5109 | zfs_receive_checkprops(libzfs_handle_t *hdl, nvlist_t *props, | |
5110 | const char *errbuf) | |
5111 | { | |
ae07fc13 | 5112 | nvpair_t *nvp = NULL; |
a3eeab2d | 5113 | zfs_prop_t prop; |
5114 | const char *name; | |
5115 | ||
a3eeab2d | 5116 | while ((nvp = nvlist_next_nvpair(props, nvp)) != NULL) { |
5117 | name = nvpair_name(nvp); | |
5118 | prop = zfs_name_to_prop(name); | |
5119 | ||
4ff7a8fa | 5120 | if (prop == ZPROP_USERPROP) { |
a3eeab2d | 5121 | if (!zfs_prop_user(name)) { |
5122 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
7633c0ae | 5123 | "%s: invalid property '%s'"), errbuf, name); |
a3eeab2d | 5124 | return (B_FALSE); |
5125 | } | |
5126 | continue; | |
5127 | } | |
5128 | /* | |
5129 | * "origin" is readonly but is used to receive datasets as | |
5130 | * clones so we don't raise an error here | |
5131 | */ | |
5132 | if (prop == ZFS_PROP_ORIGIN) | |
5133 | continue; | |
5134 | ||
d9c460a0 TC |
5135 | /* encryption params have their own verification later */ |
5136 | if (prop == ZFS_PROP_ENCRYPTION || | |
5137 | zfs_prop_encryption_key_param(prop)) | |
5138 | continue; | |
5139 | ||
a3eeab2d | 5140 | /* |
5141 | * cannot override readonly, set-once and other specific | |
5142 | * settable properties | |
5143 | */ | |
5144 | if (zfs_prop_readonly(prop) || prop == ZFS_PROP_VERSION || | |
5145 | prop == ZFS_PROP_VOLSIZE) { | |
5146 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
7633c0ae | 5147 | "%s: invalid property '%s'"), errbuf, name); |
a3eeab2d | 5148 | return (B_FALSE); |
5149 | } | |
5150 | } | |
5151 | ||
5152 | return (B_TRUE); | |
5153 | } | |
5154 | ||
b128c09f | 5155 | static int |
fcff0f35 PD |
5156 | zfs_receive_impl(libzfs_handle_t *hdl, const char *tosnap, |
5157 | const char *originsnap, recvflags_t *flags, int infd, const char *sendfs, | |
196bee4c MA |
5158 | nvlist_t *stream_nv, avl_tree_t *stream_avl, char **top_zfs, |
5159 | const char *finalsnap, nvlist_t *cmdprops) | |
34dc7c2f BB |
5160 | { |
5161 | int err; | |
5162 | dmu_replay_record_t drr, drr_noswap; | |
5163 | struct drr_begin *drrb = &drr.drr_u.drr_begin; | |
d68a2bfa | 5164 | char errbuf[ERRBUFLEN]; |
2598c001 | 5165 | zio_cksum_t zcksum = { { 0 } }; |
428870ff BB |
5166 | uint64_t featureflags; |
5167 | int hdrtype; | |
34dc7c2f BB |
5168 | |
5169 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
5170 | "cannot receive")); | |
5171 | ||
a3eeab2d | 5172 | /* check cmdline props, raise an error if they cannot be received */ |
7633c0ae | 5173 | if (!zfs_receive_checkprops(hdl, cmdprops, errbuf)) |
ae07fc13 | 5174 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); |
a3eeab2d | 5175 | |
330d06f9 | 5176 | if (flags->isprefix && |
34dc7c2f BB |
5177 | !zfs_dataset_exists(hdl, tosnap, ZFS_TYPE_DATASET)) { |
5178 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "specified fs " | |
5179 | "(%s) does not exist"), tosnap); | |
5180 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
5181 | } | |
fcff0f35 PD |
5182 | if (originsnap && |
5183 | !zfs_dataset_exists(hdl, originsnap, ZFS_TYPE_DATASET)) { | |
5184 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "specified origin fs " | |
5185 | "(%s) does not exist"), originsnap); | |
5186 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
5187 | } | |
34dc7c2f BB |
5188 | |
5189 | /* read in the BEGIN record */ | |
5190 | if (0 != (err = recv_read(hdl, infd, &drr, sizeof (drr), B_FALSE, | |
5191 | &zcksum))) | |
5192 | return (err); | |
5193 | ||
5194 | if (drr.drr_type == DRR_END || drr.drr_type == BSWAP_32(DRR_END)) { | |
5195 | /* It's the double end record at the end of a package */ | |
5196 | return (ENODATA); | |
5197 | } | |
5198 | ||
5199 | /* the kernel needs the non-byteswapped begin record */ | |
5200 | drr_noswap = drr; | |
5201 | ||
330d06f9 | 5202 | flags->byteswap = B_FALSE; |
34dc7c2f BB |
5203 | if (drrb->drr_magic == BSWAP_64(DMU_BACKUP_MAGIC)) { |
5204 | /* | |
5205 | * We computed the checksum in the wrong byteorder in | |
5206 | * recv_read() above; do it again correctly. | |
5207 | */ | |
861166b0 | 5208 | memset(&zcksum, 0, sizeof (zio_cksum_t)); |
34dc7c2f | 5209 | fletcher_4_incremental_byteswap(&drr, sizeof (drr), &zcksum); |
330d06f9 | 5210 | flags->byteswap = B_TRUE; |
34dc7c2f BB |
5211 | |
5212 | drr.drr_type = BSWAP_32(drr.drr_type); | |
5213 | drr.drr_payloadlen = BSWAP_32(drr.drr_payloadlen); | |
5214 | drrb->drr_magic = BSWAP_64(drrb->drr_magic); | |
428870ff | 5215 | drrb->drr_versioninfo = BSWAP_64(drrb->drr_versioninfo); |
34dc7c2f BB |
5216 | drrb->drr_creation_time = BSWAP_64(drrb->drr_creation_time); |
5217 | drrb->drr_type = BSWAP_32(drrb->drr_type); | |
5218 | drrb->drr_flags = BSWAP_32(drrb->drr_flags); | |
5219 | drrb->drr_toguid = BSWAP_64(drrb->drr_toguid); | |
5220 | drrb->drr_fromguid = BSWAP_64(drrb->drr_fromguid); | |
5221 | } | |
5222 | ||
5223 | if (drrb->drr_magic != DMU_BACKUP_MAGIC || drr.drr_type != DRR_BEGIN) { | |
5224 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
5225 | "stream (bad magic number)")); | |
5226 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); | |
5227 | } | |
5228 | ||
428870ff BB |
5229 | featureflags = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo); |
5230 | hdrtype = DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo); | |
5231 | ||
5232 | if (!DMU_STREAM_SUPPORTED(featureflags) || | |
5233 | (hdrtype != DMU_SUBSTREAM && hdrtype != DMU_COMPOUNDSTREAM)) { | |
a2ffc0e0 RE |
5234 | /* |
5235 | * Let's be explicit about this one, since rather than | |
5236 | * being a new feature we can't know, it's an old | |
5237 | * feature we dropped. | |
5238 | */ | |
5239 | if (featureflags & DMU_BACKUP_FEATURE_DEDUP) { | |
5240 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5241 | "stream has deprecated feature: dedup, try " | |
5242 | "'zstream redup [send in a file] | zfs recv " | |
5243 | "[...]'")); | |
5244 | } else { | |
5245 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5246 | "stream has unsupported feature, feature flags = " | |
5247 | "%llx (unknown flags = %llx)"), | |
5248 | (u_longlong_t)featureflags, | |
5249 | (u_longlong_t)((featureflags) & | |
5250 | ~DMU_BACKUP_FEATURE_MASK)); | |
5251 | } | |
428870ff BB |
5252 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); |
5253 | } | |
5254 | ||
9c5e88b1 | 5255 | /* Holds feature is set once in the compound stream header. */ |
c618f87c | 5256 | if (featureflags & DMU_BACKUP_FEATURE_HOLDS) |
9c5e88b1 PZ |
5257 | flags->holds = B_TRUE; |
5258 | ||
34dc7c2f BB |
5259 | if (strchr(drrb->drr_toname, '@') == NULL) { |
5260 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
5261 | "stream (bad snapshot name)")); | |
5262 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); | |
5263 | } | |
5264 | ||
428870ff | 5265 | if (DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == DMU_SUBSTREAM) { |
eca7b760 | 5266 | char nonpackage_sendfs[ZFS_MAX_DATASET_NAME_LEN]; |
428870ff BB |
5267 | if (sendfs == NULL) { |
5268 | /* | |
5269 | * We were not called from zfs_receive_package(). Get | |
5270 | * the fs specified by 'zfs send'. | |
5271 | */ | |
5272 | char *cp; | |
5273 | (void) strlcpy(nonpackage_sendfs, | |
eca7b760 IK |
5274 | drr.drr_u.drr_begin.drr_toname, |
5275 | sizeof (nonpackage_sendfs)); | |
428870ff BB |
5276 | if ((cp = strchr(nonpackage_sendfs, '@')) != NULL) |
5277 | *cp = '\0'; | |
5278 | sendfs = nonpackage_sendfs; | |
671c9354 | 5279 | VERIFY(finalsnap == NULL); |
428870ff | 5280 | } |
fcff0f35 PD |
5281 | return (zfs_receive_one(hdl, infd, tosnap, originsnap, flags, |
5282 | &drr, &drr_noswap, sendfs, stream_nv, stream_avl, top_zfs, | |
196bee4c | 5283 | finalsnap, cmdprops)); |
428870ff BB |
5284 | } else { |
5285 | assert(DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == | |
5286 | DMU_COMPOUNDSTREAM); | |
fcff0f35 | 5287 | return (zfs_receive_package(hdl, infd, tosnap, flags, &drr, |
196bee4c | 5288 | &zcksum, top_zfs, cmdprops)); |
34dc7c2f BB |
5289 | } |
5290 | } | |
b128c09f BB |
5291 | |
5292 | /* | |
5293 | * Restores a backup of tosnap from the file descriptor specified by infd. | |
5294 | * Return 0 on total success, -2 if some things couldn't be | |
5295 | * destroyed/renamed/promoted, -1 if some things couldn't be received. | |
47dfff3b MA |
5296 | * (-1 will override -2, if -1 and the resumable flag was specified the |
5297 | * transfer can be resumed if the sending side supports it). | |
b128c09f BB |
5298 | */ |
5299 | int | |
fcff0f35 PD |
5300 | zfs_receive(libzfs_handle_t *hdl, const char *tosnap, nvlist_t *props, |
5301 | recvflags_t *flags, int infd, avl_tree_t *stream_avl) | |
b128c09f BB |
5302 | { |
5303 | char *top_zfs = NULL; | |
5304 | int err; | |
5c3f61eb | 5305 | struct stat sb; |
fcff0f35 | 5306 | char *originsnap = NULL; |
5c3f61eb RY |
5307 | |
5308 | /* | |
5309 | * The only way fstat can fail is if we do not have a valid file | |
5310 | * descriptor. | |
5311 | */ | |
5312 | if (fstat(infd, &sb) == -1) { | |
5313 | perror("fstat"); | |
5314 | return (-2); | |
5315 | } | |
5316 | ||
fcff0f35 PD |
5317 | if (props) { |
5318 | err = nvlist_lookup_string(props, "origin", &originsnap); | |
5319 | if (err && err != ENOENT) | |
5320 | return (err); | |
5321 | } | |
5322 | ||
fcff0f35 | 5323 | err = zfs_receive_impl(hdl, tosnap, originsnap, flags, infd, NULL, NULL, |
196bee4c | 5324 | stream_avl, &top_zfs, NULL, props); |
b128c09f | 5325 | |
bb61cc31 | 5326 | if (err == 0 && !flags->nomount && flags->domount && top_zfs) { |
689f093e GN |
5327 | zfs_handle_t *zhp = NULL; |
5328 | prop_changelist_t *clp = NULL; | |
b128c09f | 5329 | |
bb61cc31 TC |
5330 | zhp = zfs_open(hdl, top_zfs, |
5331 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
5332 | if (zhp == NULL) { | |
5333 | err = -1; | |
5334 | goto out; | |
5335 | } else { | |
5336 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
5337 | zfs_close(zhp); | |
5338 | goto out; | |
5339 | } | |
5340 | ||
b128c09f | 5341 | clp = changelist_gather(zhp, ZFS_PROP_MOUNTPOINT, |
a57d3d45 MZ |
5342 | CL_GATHER_MOUNT_ALWAYS, |
5343 | flags->forceunmount ? MS_FORCE : 0); | |
b128c09f | 5344 | zfs_close(zhp); |
bb61cc31 TC |
5345 | if (clp == NULL) { |
5346 | err = -1; | |
5347 | goto out; | |
b128c09f | 5348 | } |
bb61cc31 TC |
5349 | |
5350 | /* mount and share received datasets */ | |
5351 | err = changelist_postfix(clp); | |
5352 | changelist_free(clp); | |
5353 | if (err != 0) | |
5354 | err = -1; | |
b128c09f | 5355 | } |
b128c09f | 5356 | } |
bb61cc31 TC |
5357 | |
5358 | out: | |
b128c09f BB |
5359 | if (top_zfs) |
5360 | free(top_zfs); | |
5361 | ||
5362 | return (err); | |
5363 | } |