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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
1d3ba0bf | 9 | * or https://opensource.org/licenses/CDDL-1.0. |
34dc7c2f BB |
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; | |
19d39615 | 86 | boolean_t pa_astitle; |
05b72415 | 87 | boolean_t pa_progress; |
19d39615 | 88 | uint64_t pa_size; |
37abac6d BP |
89 | } progress_arg_t; |
90 | ||
428870ff | 91 | static int |
01a0039a | 92 | dump_record(dmu_replay_record_t *drr, void *payload, size_t payload_len, |
37f8a883 | 93 | zio_cksum_t *zc, int outfd) |
428870ff | 94 | { |
37f8a883 MA |
95 | ASSERT3U(offsetof(dmu_replay_record_t, drr_u.drr_checksum.drr_checksum), |
96 | ==, sizeof (dmu_replay_record_t) - sizeof (zio_cksum_t)); | |
97 | fletcher_4_incremental_native(drr, | |
98 | offsetof(dmu_replay_record_t, drr_u.drr_checksum.drr_checksum), zc); | |
99 | if (drr->drr_type != DRR_BEGIN) { | |
100 | ASSERT(ZIO_CHECKSUM_IS_ZERO(&drr->drr_u. | |
101 | drr_checksum.drr_checksum)); | |
102 | drr->drr_u.drr_checksum.drr_checksum = *zc; | |
103 | } | |
104 | fletcher_4_incremental_native(&drr->drr_u.drr_checksum.drr_checksum, | |
105 | sizeof (zio_cksum_t), zc); | |
106 | if (write(outfd, drr, sizeof (*drr)) == -1) | |
107 | return (errno); | |
108 | if (payload_len != 0) { | |
109 | fletcher_4_incremental_native(payload, payload_len, zc); | |
110 | if (write(outfd, payload, payload_len) == -1) | |
111 | return (errno); | |
112 | } | |
113 | return (0); | |
428870ff BB |
114 | } |
115 | ||
34dc7c2f BB |
116 | /* |
117 | * Routines for dealing with the AVL tree of fs-nvlists | |
118 | */ | |
119 | typedef struct fsavl_node { | |
120 | avl_node_t fn_node; | |
121 | nvlist_t *fn_nvfs; | |
d1807f16 | 122 | const char *fn_snapname; |
34dc7c2f BB |
123 | uint64_t fn_guid; |
124 | } fsavl_node_t; | |
125 | ||
126 | static int | |
127 | fsavl_compare(const void *arg1, const void *arg2) | |
128 | { | |
ee36c709 GN |
129 | const fsavl_node_t *fn1 = (const fsavl_node_t *)arg1; |
130 | const fsavl_node_t *fn2 = (const fsavl_node_t *)arg2; | |
131 | ||
ca577779 | 132 | return (TREE_CMP(fn1->fn_guid, fn2->fn_guid)); |
34dc7c2f BB |
133 | } |
134 | ||
135 | /* | |
136 | * Given the GUID of a snapshot, find its containing filesystem and | |
137 | * (optionally) name. | |
138 | */ | |
139 | static nvlist_t * | |
d1807f16 | 140 | fsavl_find(avl_tree_t *avl, uint64_t snapguid, const char **snapname) |
34dc7c2f BB |
141 | { |
142 | fsavl_node_t fn_find; | |
143 | fsavl_node_t *fn; | |
144 | ||
145 | fn_find.fn_guid = snapguid; | |
146 | ||
147 | fn = avl_find(avl, &fn_find, NULL); | |
148 | if (fn) { | |
149 | if (snapname) | |
150 | *snapname = fn->fn_snapname; | |
151 | return (fn->fn_nvfs); | |
152 | } | |
153 | return (NULL); | |
154 | } | |
155 | ||
156 | static void | |
157 | fsavl_destroy(avl_tree_t *avl) | |
158 | { | |
159 | fsavl_node_t *fn; | |
160 | void *cookie; | |
161 | ||
162 | if (avl == NULL) | |
163 | return; | |
164 | ||
165 | cookie = NULL; | |
166 | while ((fn = avl_destroy_nodes(avl, &cookie)) != NULL) | |
167 | free(fn); | |
168 | avl_destroy(avl); | |
169 | free(avl); | |
170 | } | |
171 | ||
45d1cae3 BB |
172 | /* |
173 | * Given an nvlist, produce an avl tree of snapshots, ordered by guid | |
174 | */ | |
34dc7c2f BB |
175 | static avl_tree_t * |
176 | fsavl_create(nvlist_t *fss) | |
177 | { | |
178 | avl_tree_t *fsavl; | |
179 | nvpair_t *fselem = NULL; | |
180 | ||
181 | if ((fsavl = malloc(sizeof (avl_tree_t))) == NULL) | |
182 | return (NULL); | |
183 | ||
184 | avl_create(fsavl, fsavl_compare, sizeof (fsavl_node_t), | |
185 | offsetof(fsavl_node_t, fn_node)); | |
186 | ||
187 | while ((fselem = nvlist_next_nvpair(fss, fselem)) != NULL) { | |
188 | nvlist_t *nvfs, *snaps; | |
189 | nvpair_t *snapelem = NULL; | |
190 | ||
60a2434b RM |
191 | nvfs = fnvpair_value_nvlist(fselem); |
192 | snaps = fnvlist_lookup_nvlist(nvfs, "snaps"); | |
34dc7c2f BB |
193 | |
194 | while ((snapelem = | |
195 | nvlist_next_nvpair(snaps, snapelem)) != NULL) { | |
196 | fsavl_node_t *fn; | |
34dc7c2f | 197 | |
34dc7c2f BB |
198 | if ((fn = malloc(sizeof (fsavl_node_t))) == NULL) { |
199 | fsavl_destroy(fsavl); | |
200 | return (NULL); | |
201 | } | |
202 | fn->fn_nvfs = nvfs; | |
203 | fn->fn_snapname = nvpair_name(snapelem); | |
1488e822 | 204 | fn->fn_guid = fnvpair_value_uint64(snapelem); |
34dc7c2f BB |
205 | |
206 | /* | |
207 | * Note: if there are multiple snaps with the | |
208 | * same GUID, we ignore all but one. | |
209 | */ | |
af2b1fbd RM |
210 | avl_index_t where = 0; |
211 | if (avl_find(fsavl, fn, &where) == NULL) | |
212 | avl_insert(fsavl, fn, where); | |
34dc7c2f BB |
213 | else |
214 | free(fn); | |
215 | } | |
216 | } | |
217 | ||
218 | return (fsavl); | |
219 | } | |
220 | ||
221 | /* | |
222 | * Routines for dealing with the giant nvlist of fs-nvlists, etc. | |
223 | */ | |
224 | typedef struct send_data { | |
66356240 K |
225 | /* |
226 | * assigned inside every recursive call, | |
227 | * restored from *_save on return: | |
228 | * | |
229 | * guid of fromsnap snapshot in parent dataset | |
230 | * txg of fromsnap snapshot in current dataset | |
231 | * txg of tosnap snapshot in current dataset | |
232 | */ | |
233 | ||
34dc7c2f | 234 | uint64_t parent_fromsnap_guid; |
66356240 K |
235 | uint64_t fromsnap_txg; |
236 | uint64_t tosnap_txg; | |
237 | ||
238 | /* the nvlists get accumulated during depth-first traversal */ | |
34dc7c2f BB |
239 | nvlist_t *parent_snaps; |
240 | nvlist_t *fss; | |
b128c09f | 241 | nvlist_t *snapprops; |
9c5e88b1 | 242 | nvlist_t *snapholds; /* user holds */ |
66356240 K |
243 | |
244 | /* send-receive configuration, does not change during traversal */ | |
245 | const char *fsname; | |
34dc7c2f BB |
246 | const char *fromsnap; |
247 | const char *tosnap; | |
428870ff | 248 | boolean_t recursive; |
4c0883fb | 249 | boolean_t raw; |
f94b3cbf | 250 | boolean_t doall; |
4c0883fb | 251 | boolean_t replicate; |
099fa7e4 | 252 | boolean_t skipmissing; |
66356240 | 253 | boolean_t verbose; |
4c0883fb | 254 | boolean_t backup; |
05748550 AG |
255 | boolean_t seenfrom; |
256 | boolean_t seento; | |
9c5e88b1 PZ |
257 | boolean_t holds; /* were holds requested with send -h */ |
258 | boolean_t props; | |
34dc7c2f BB |
259 | |
260 | /* | |
261 | * The header nvlist is of the following format: | |
262 | * { | |
263 | * "tosnap" -> string | |
264 | * "fromsnap" -> string (if incremental) | |
265 | * "fss" -> { | |
266 | * id -> { | |
267 | * | |
268 | * "name" -> string (full name; for debugging) | |
269 | * "parentfromsnap" -> number (guid of fromsnap in parent) | |
270 | * | |
271 | * "props" -> { name -> value (only if set here) } | |
272 | * "snaps" -> { name (lastname) -> number (guid) } | |
b128c09f | 273 | * "snapprops" -> { name (lastname) -> { name -> value } } |
9c5e88b1 | 274 | * "snapholds" -> { name (lastname) -> { holdname -> crtime } } |
34dc7c2f BB |
275 | * |
276 | * "origin" -> number (guid) (if clone) | |
b5256303 | 277 | * "is_encroot" -> boolean |
34dc7c2f BB |
278 | * "sent" -> boolean (not on-disk) |
279 | * } | |
280 | * } | |
281 | * } | |
282 | * | |
283 | */ | |
284 | } send_data_t; | |
285 | ||
faa97c16 | 286 | static void |
287 | send_iterate_prop(zfs_handle_t *zhp, boolean_t received_only, nvlist_t *nv); | |
b128c09f | 288 | |
dd59c422 RM |
289 | /* |
290 | * Collect guid, valid props, optionally holds, etc. of a snapshot. | |
291 | * This interface is intended for use as a zfs_iter_snapshots_sorted visitor. | |
292 | */ | |
34dc7c2f BB |
293 | static int |
294 | send_iterate_snap(zfs_handle_t *zhp, void *arg) | |
295 | { | |
296 | send_data_t *sd = arg; | |
297 | uint64_t guid = zhp->zfs_dmustats.dds_guid; | |
66356240 | 298 | uint64_t txg = zhp->zfs_dmustats.dds_creation_txg; |
e890dd85 | 299 | boolean_t isfromsnap, istosnap, istosnapwithnofrom; |
5cf3c24f | 300 | char *snapname; |
dd59c422 RM |
301 | const char *from = sd->fromsnap; |
302 | const char *to = sd->tosnap; | |
34dc7c2f | 303 | |
5cf3c24f AZ |
304 | snapname = strrchr(zhp->zfs_name, '@'); |
305 | assert(snapname != NULL); | |
306 | ++snapname; | |
dd59c422 RM |
307 | |
308 | isfromsnap = (from != NULL && strcmp(from, snapname) == 0); | |
309 | istosnap = (to != NULL && strcmp(to, snapname) == 0); | |
310 | istosnapwithnofrom = (istosnap && from == NULL); | |
34dc7c2f | 311 | |
66356240 K |
312 | if (sd->tosnap_txg != 0 && txg > sd->tosnap_txg) { |
313 | if (sd->verbose) { | |
314 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
315 | "skipping snapshot %s because it was created " | |
316 | "after the destination snapshot (%s)\n"), | |
dd59c422 | 317 | zhp->zfs_name, to); |
66356240 K |
318 | } |
319 | zfs_close(zhp); | |
320 | return (0); | |
321 | } | |
322 | ||
60a2434b | 323 | fnvlist_add_uint64(sd->parent_snaps, snapname, guid); |
dd59c422 | 324 | |
34dc7c2f BB |
325 | /* |
326 | * NB: if there is no fromsnap here (it's a newly created fs in | |
327 | * an incremental replication), we will substitute the tosnap. | |
328 | */ | |
dd59c422 | 329 | if (isfromsnap || (sd->parent_fromsnap_guid == 0 && istosnap)) |
34dc7c2f | 330 | sd->parent_fromsnap_guid = guid; |
34dc7c2f | 331 | |
05748550 | 332 | if (!sd->recursive) { |
b9c07ec7 CM |
333 | /* |
334 | * To allow a doall stream to work properly | |
335 | * with a NULL fromsnap | |
336 | */ | |
dd59c422 | 337 | if (sd->doall && from == NULL && !sd->seenfrom) |
b9c07ec7 | 338 | sd->seenfrom = B_TRUE; |
b9c07ec7 | 339 | |
05748550 AG |
340 | if (!sd->seenfrom && isfromsnap) { |
341 | sd->seenfrom = B_TRUE; | |
342 | zfs_close(zhp); | |
343 | return (0); | |
344 | } | |
345 | ||
e890dd85 | 346 | if ((sd->seento || !sd->seenfrom) && !istosnapwithnofrom) { |
05748550 AG |
347 | zfs_close(zhp); |
348 | return (0); | |
349 | } | |
350 | ||
351 | if (istosnap) | |
352 | sd->seento = B_TRUE; | |
353 | } | |
354 | ||
dd59c422 | 355 | nvlist_t *nv = fnvlist_alloc(); |
faa97c16 | 356 | send_iterate_prop(zhp, sd->backup, nv); |
60a2434b RM |
357 | fnvlist_add_nvlist(sd->snapprops, snapname, nv); |
358 | fnvlist_free(nv); | |
dd59c422 | 359 | |
9c5e88b1 | 360 | if (sd->holds) { |
f2b36b2d RM |
361 | nvlist_t *holds; |
362 | if (lzc_get_holds(zhp->zfs_name, &holds) == 0) { | |
60a2434b | 363 | fnvlist_add_nvlist(sd->snapholds, snapname, holds); |
f2b36b2d | 364 | fnvlist_free(holds); |
9c5e88b1 | 365 | } |
9c5e88b1 | 366 | } |
b128c09f | 367 | |
34dc7c2f BB |
368 | zfs_close(zhp); |
369 | return (0); | |
370 | } | |
371 | ||
2b6b7111 RM |
372 | /* |
373 | * Collect all valid props from the handle snap into an nvlist. | |
374 | */ | |
34dc7c2f | 375 | static void |
faa97c16 | 376 | send_iterate_prop(zfs_handle_t *zhp, boolean_t received_only, nvlist_t *nv) |
34dc7c2f | 377 | { |
2b6b7111 | 378 | nvlist_t *props; |
34dc7c2f | 379 | |
faa97c16 | 380 | if (received_only) |
381 | props = zfs_get_recvd_props(zhp); | |
382 | else | |
383 | props = zhp->zfs_props; | |
384 | ||
2b6b7111 | 385 | nvpair_t *elem = NULL; |
faa97c16 | 386 | while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { |
d1807f16 | 387 | const char *propname = nvpair_name(elem); |
34dc7c2f | 388 | zfs_prop_t prop = zfs_name_to_prop(propname); |
34dc7c2f | 389 | |
428870ff BB |
390 | if (!zfs_prop_user(propname)) { |
391 | /* | |
392 | * Realistically, this should never happen. However, | |
393 | * we want the ability to add DSL properties without | |
394 | * needing to make incompatible version changes. We | |
395 | * need to ignore unknown properties to allow older | |
396 | * software to still send datasets containing these | |
397 | * properties, with the unknown properties elided. | |
398 | */ | |
399 | if (prop == ZPROP_INVAL) | |
400 | continue; | |
9babb374 | 401 | |
428870ff BB |
402 | if (zfs_prop_readonly(prop)) |
403 | continue; | |
404 | } | |
34dc7c2f | 405 | |
2b6b7111 RM |
406 | nvlist_t *propnv = fnvpair_value_nvlist(elem); |
407 | ||
408 | boolean_t isspacelimit = (prop == ZFS_PROP_QUOTA || | |
409 | prop == ZFS_PROP_RESERVATION || | |
45d1cae3 | 410 | prop == ZFS_PROP_REFQUOTA || |
2b6b7111 RM |
411 | prop == ZFS_PROP_REFRESERVATION); |
412 | if (isspacelimit && zhp->zfs_type == ZFS_TYPE_SNAPSHOT) | |
413 | continue; | |
414 | ||
d1807f16 | 415 | const char *source; |
2b6b7111 RM |
416 | if (nvlist_lookup_string(propnv, ZPROP_SOURCE, &source) == 0) { |
417 | if (strcmp(source, zhp->zfs_name) != 0 && | |
418 | strcmp(source, ZPROP_SOURCE_VAL_RECVD) != 0) | |
b128c09f | 419 | continue; |
2b6b7111 | 420 | } else { |
428870ff BB |
421 | /* |
422 | * May have no source before SPA_VERSION_RECVD_PROPS, | |
423 | * but is still modifiable. | |
424 | */ | |
2b6b7111 | 425 | if (!isspacelimit) |
34dc7c2f BB |
426 | continue; |
427 | } | |
428 | ||
429 | if (zfs_prop_user(propname) || | |
430 | zfs_prop_get_type(prop) == PROP_TYPE_STRING) { | |
d1807f16 | 431 | const char *value; |
60a2434b RM |
432 | value = fnvlist_lookup_string(propnv, ZPROP_VALUE); |
433 | fnvlist_add_string(nv, propname, value); | |
34dc7c2f BB |
434 | } else { |
435 | uint64_t value; | |
60a2434b RM |
436 | value = fnvlist_lookup_uint64(propnv, ZPROP_VALUE); |
437 | fnvlist_add_uint64(nv, propname, value); | |
34dc7c2f BB |
438 | } |
439 | } | |
440 | } | |
441 | ||
e8cf3a4f AP |
442 | /* |
443 | * returns snapshot guid | |
444 | * and returns 0 if the snapshot does not exist | |
445 | */ | |
446 | static uint64_t | |
447 | get_snap_guid(libzfs_handle_t *hdl, const char *fs, const char *snap) | |
448 | { | |
449 | char name[MAXPATHLEN + 1]; | |
450 | uint64_t guid = 0; | |
451 | ||
452 | if (fs == NULL || fs[0] == '\0' || snap == NULL || snap[0] == '\0') | |
453 | return (guid); | |
454 | ||
455 | (void) snprintf(name, sizeof (name), "%s@%s", fs, snap); | |
456 | zfs_handle_t *zhp = zfs_open(hdl, name, ZFS_TYPE_SNAPSHOT); | |
457 | if (zhp != NULL) { | |
458 | guid = zfs_prop_get_int(zhp, ZFS_PROP_GUID); | |
459 | zfs_close(zhp); | |
460 | } | |
461 | ||
462 | return (guid); | |
463 | } | |
464 | ||
66356240 K |
465 | /* |
466 | * returns snapshot creation txg | |
467 | * and returns 0 if the snapshot does not exist | |
468 | */ | |
469 | static uint64_t | |
470 | get_snap_txg(libzfs_handle_t *hdl, const char *fs, const char *snap) | |
471 | { | |
472 | char name[ZFS_MAX_DATASET_NAME_LEN]; | |
473 | uint64_t txg = 0; | |
474 | ||
475 | if (fs == NULL || fs[0] == '\0' || snap == NULL || snap[0] == '\0') | |
476 | return (txg); | |
477 | ||
478 | (void) snprintf(name, sizeof (name), "%s@%s", fs, snap); | |
479 | if (zfs_dataset_exists(hdl, name, ZFS_TYPE_SNAPSHOT)) { | |
480 | zfs_handle_t *zhp = zfs_open(hdl, name, ZFS_TYPE_SNAPSHOT); | |
481 | if (zhp != NULL) { | |
482 | txg = zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG); | |
483 | zfs_close(zhp); | |
484 | } | |
485 | } | |
486 | ||
487 | return (txg); | |
488 | } | |
489 | ||
45d1cae3 | 490 | /* |
0c1c746a | 491 | * Recursively generate nvlists describing datasets. See comment |
45d1cae3 BB |
492 | * for the data structure send_data_t above for description of contents |
493 | * of the nvlist. | |
494 | */ | |
34dc7c2f BB |
495 | static int |
496 | send_iterate_fs(zfs_handle_t *zhp, void *arg) | |
497 | { | |
498 | send_data_t *sd = arg; | |
b5256303 | 499 | nvlist_t *nvfs = NULL, *nv = NULL; |
428870ff | 500 | int rv = 0; |
4c0883fb | 501 | uint64_t min_txg = 0, max_txg = 0; |
66356240 | 502 | uint64_t txg = zhp->zfs_dmustats.dds_creation_txg; |
34dc7c2f | 503 | uint64_t guid = zhp->zfs_dmustats.dds_guid; |
66356240 | 504 | uint64_t fromsnap_txg, tosnap_txg; |
34dc7c2f BB |
505 | char guidstring[64]; |
506 | ||
0c1c746a RM |
507 | /* These fields are restored on return from a recursive call. */ |
508 | uint64_t parent_fromsnap_guid_save = sd->parent_fromsnap_guid; | |
509 | uint64_t fromsnap_txg_save = sd->fromsnap_txg; | |
510 | uint64_t tosnap_txg_save = sd->tosnap_txg; | |
511 | ||
66356240 K |
512 | fromsnap_txg = get_snap_txg(zhp->zfs_hdl, zhp->zfs_name, sd->fromsnap); |
513 | if (fromsnap_txg != 0) | |
514 | sd->fromsnap_txg = fromsnap_txg; | |
515 | ||
516 | tosnap_txg = get_snap_txg(zhp->zfs_hdl, zhp->zfs_name, sd->tosnap); | |
517 | if (tosnap_txg != 0) | |
518 | sd->tosnap_txg = tosnap_txg; | |
519 | ||
520 | /* | |
0c1c746a | 521 | * On the send side, if the current dataset does not have tosnap, |
66356240 K |
522 | * perform two additional checks: |
523 | * | |
0c1c746a RM |
524 | * - Skip sending the current dataset if it was created later than |
525 | * the parent tosnap. | |
526 | * - Return error if the current dataset was created earlier than | |
099fa7e4 | 527 | * the parent tosnap, unless --skip-missing specified. Then |
0c1c746a | 528 | * just print a warning. |
66356240 K |
529 | */ |
530 | if (sd->tosnap != NULL && tosnap_txg == 0) { | |
531 | if (sd->tosnap_txg != 0 && txg > sd->tosnap_txg) { | |
532 | if (sd->verbose) { | |
533 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
534 | "skipping dataset %s: snapshot %s does " | |
535 | "not exist\n"), zhp->zfs_name, sd->tosnap); | |
536 | } | |
099fa7e4 PCG |
537 | } else if (sd->skipmissing) { |
538 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
539 | "WARNING: skipping dataset %s and its children:" | |
540 | " snapshot %s does not exist\n"), | |
541 | zhp->zfs_name, sd->tosnap); | |
66356240 K |
542 | } else { |
543 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
544 | "cannot send %s@%s%s: snapshot %s@%s does not " | |
545 | "exist\n"), sd->fsname, sd->tosnap, sd->recursive ? | |
546 | dgettext(TEXT_DOMAIN, " recursively") : "", | |
547 | zhp->zfs_name, sd->tosnap); | |
30af21b0 | 548 | rv = EZFS_NOENT; |
66356240 K |
549 | } |
550 | goto out; | |
551 | } | |
552 | ||
4c0883fb AP |
553 | nvfs = fnvlist_alloc(); |
554 | fnvlist_add_string(nvfs, "name", zhp->zfs_name); | |
0c1c746a | 555 | fnvlist_add_uint64(nvfs, "parentfromsnap", sd->parent_fromsnap_guid); |
34dc7c2f | 556 | |
0c1c746a | 557 | if (zhp->zfs_dmustats.dds_origin[0] != '\0') { |
34dc7c2f BB |
558 | zfs_handle_t *origin = zfs_open(zhp->zfs_hdl, |
559 | zhp->zfs_dmustats.dds_origin, ZFS_TYPE_SNAPSHOT); | |
66356240 K |
560 | if (origin == NULL) { |
561 | rv = -1; | |
562 | goto out; | |
563 | } | |
4c0883fb AP |
564 | fnvlist_add_uint64(nvfs, "origin", |
565 | origin->zfs_dmustats.dds_guid); | |
ad7e908a | 566 | zfs_close(origin); |
34dc7c2f BB |
567 | } |
568 | ||
0c1c746a | 569 | /* Iterate over props. */ |
9c5e88b1 | 570 | if (sd->props || sd->backup || sd->recursive) { |
4c0883fb | 571 | nv = fnvlist_alloc(); |
9c5e88b1 | 572 | send_iterate_prop(zhp, sd->backup, nv); |
0c1c746a | 573 | fnvlist_add_nvlist(nvfs, "props", nv); |
9c5e88b1 | 574 | } |
b5256303 TC |
575 | if (zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != ZIO_CRYPT_OFF) { |
576 | boolean_t encroot; | |
577 | ||
0c1c746a | 578 | /* Determine if this dataset is an encryption root. */ |
b5256303 TC |
579 | if (zfs_crypto_get_encryption_root(zhp, &encroot, NULL) != 0) { |
580 | rv = -1; | |
581 | goto out; | |
582 | } | |
583 | ||
584 | if (encroot) | |
4c0883fb | 585 | fnvlist_add_boolean(nvfs, "is_encroot"); |
b5256303 TC |
586 | |
587 | /* | |
588 | * Encrypted datasets can only be sent with properties if | |
589 | * the raw flag is specified because the receive side doesn't | |
590 | * currently have a mechanism for recursively asking the user | |
591 | * for new encryption parameters. | |
592 | */ | |
593 | if (!sd->raw) { | |
594 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
595 | "cannot send %s@%s: encrypted dataset %s may not " | |
596 | "be sent with properties without the raw flag\n"), | |
597 | sd->fsname, sd->tosnap, zhp->zfs_name); | |
598 | rv = -1; | |
599 | goto out; | |
600 | } | |
601 | ||
602 | } | |
603 | ||
f94b3cbf | 604 | /* |
0c1c746a RM |
605 | * Iterate over snaps, and set sd->parent_fromsnap_guid. |
606 | * | |
f94b3cbf TC |
607 | * If this is a "doall" send, a replicate send or we're just trying |
608 | * to gather a list of previous snapshots, iterate through all the | |
609 | * snaps in the txg range. Otherwise just look at the one we're | |
610 | * interested in. | |
611 | */ | |
0c1c746a RM |
612 | sd->parent_fromsnap_guid = 0; |
613 | sd->parent_snaps = fnvlist_alloc(); | |
614 | sd->snapprops = fnvlist_alloc(); | |
615 | if (sd->holds) | |
616 | sd->snapholds = fnvlist_alloc(); | |
f94b3cbf TC |
617 | if (sd->doall || sd->replicate || sd->tosnap == NULL) { |
618 | if (!sd->replicate && fromsnap_txg != 0) | |
619 | min_txg = fromsnap_txg; | |
620 | if (!sd->replicate && tosnap_txg != 0) | |
621 | max_txg = tosnap_txg; | |
dc95911d | 622 | (void) zfs_iter_snapshots_sorted(zhp, 0, send_iterate_snap, sd, |
f94b3cbf TC |
623 | min_txg, max_txg); |
624 | } else { | |
dc95911d | 625 | char snapname[MAXPATHLEN] = { 0 }; |
f94b3cbf TC |
626 | zfs_handle_t *snap; |
627 | ||
f0ce0436 | 628 | (void) snprintf(snapname, sizeof (snapname), "%s@%s", |
f94b3cbf TC |
629 | zhp->zfs_name, sd->tosnap); |
630 | if (sd->fromsnap != NULL) | |
631 | sd->seenfrom = B_TRUE; | |
0c1c746a | 632 | snap = zfs_open(zhp->zfs_hdl, snapname, ZFS_TYPE_SNAPSHOT); |
f94b3cbf TC |
633 | if (snap != NULL) |
634 | (void) send_iterate_snap(snap, sd); | |
635 | } | |
636 | ||
4c0883fb | 637 | fnvlist_add_nvlist(nvfs, "snaps", sd->parent_snaps); |
4c0883fb | 638 | fnvlist_free(sd->parent_snaps); |
0c1c746a | 639 | fnvlist_add_nvlist(nvfs, "snapprops", sd->snapprops); |
4c0883fb | 640 | fnvlist_free(sd->snapprops); |
0c1c746a RM |
641 | if (sd->holds) { |
642 | fnvlist_add_nvlist(nvfs, "snapholds", sd->snapholds); | |
643 | fnvlist_free(sd->snapholds); | |
644 | } | |
34dc7c2f | 645 | |
7a6c12fd AJ |
646 | /* Do not allow the size of the properties list to exceed the limit */ |
647 | if ((fnvlist_size(nvfs) + fnvlist_size(sd->fss)) > | |
648 | zhp->zfs_hdl->libzfs_max_nvlist) { | |
649 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
650 | "warning: cannot send %s@%s: the size of the list of " | |
651 | "snapshots and properties is too large to be received " | |
652 | "successfully.\n" | |
653 | "Select a smaller number of snapshots to send.\n"), | |
654 | zhp->zfs_name, sd->tosnap); | |
655 | rv = EZFS_NOSPC; | |
656 | goto out; | |
657 | } | |
0c1c746a | 658 | /* Add this fs to nvlist. */ |
34dc7c2f BB |
659 | (void) snprintf(guidstring, sizeof (guidstring), |
660 | "0x%llx", (longlong_t)guid); | |
4c0883fb | 661 | fnvlist_add_nvlist(sd->fss, guidstring, nvfs); |
34dc7c2f | 662 | |
0c1c746a | 663 | /* Iterate over children. */ |
428870ff | 664 | if (sd->recursive) |
dc95911d | 665 | rv = zfs_iter_filesystems(zhp, 0, send_iterate_fs, sd); |
34dc7c2f | 666 | |
66356240 | 667 | out: |
0c1c746a | 668 | /* Restore saved fields. */ |
34dc7c2f | 669 | sd->parent_fromsnap_guid = parent_fromsnap_guid_save; |
66356240 K |
670 | sd->fromsnap_txg = fromsnap_txg_save; |
671 | sd->tosnap_txg = tosnap_txg_save; | |
0c1c746a | 672 | |
4c0883fb AP |
673 | fnvlist_free(nv); |
674 | fnvlist_free(nvfs); | |
34dc7c2f BB |
675 | |
676 | zfs_close(zhp); | |
677 | return (rv); | |
678 | } | |
679 | ||
680 | static int | |
681 | gather_nvlist(libzfs_handle_t *hdl, const char *fsname, const char *fromsnap, | |
f94b3cbf | 682 | const char *tosnap, boolean_t recursive, boolean_t raw, boolean_t doall, |
099fa7e4 PCG |
683 | boolean_t replicate, boolean_t skipmissing, boolean_t verbose, |
684 | boolean_t backup, boolean_t holds, boolean_t props, nvlist_t **nvlp, | |
685 | avl_tree_t **avlp) | |
34dc7c2f BB |
686 | { |
687 | zfs_handle_t *zhp; | |
688 | send_data_t sd = { 0 }; | |
689 | int error; | |
690 | ||
691 | zhp = zfs_open(hdl, fsname, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
692 | if (zhp == NULL) | |
693 | return (EZFS_BADTYPE); | |
694 | ||
60a2434b | 695 | sd.fss = fnvlist_alloc(); |
66356240 | 696 | sd.fsname = fsname; |
34dc7c2f BB |
697 | sd.fromsnap = fromsnap; |
698 | sd.tosnap = tosnap; | |
428870ff | 699 | sd.recursive = recursive; |
b5256303 | 700 | sd.raw = raw; |
f94b3cbf | 701 | sd.doall = doall; |
4c0883fb | 702 | sd.replicate = replicate; |
099fa7e4 | 703 | sd.skipmissing = skipmissing; |
66356240 | 704 | sd.verbose = verbose; |
faa97c16 | 705 | sd.backup = backup; |
9c5e88b1 PZ |
706 | sd.holds = holds; |
707 | sd.props = props; | |
34dc7c2f BB |
708 | |
709 | if ((error = send_iterate_fs(zhp, &sd)) != 0) { | |
60a2434b | 710 | fnvlist_free(sd.fss); |
34dc7c2f BB |
711 | if (avlp != NULL) |
712 | *avlp = NULL; | |
713 | *nvlp = NULL; | |
714 | return (error); | |
715 | } | |
716 | ||
717 | if (avlp != NULL && (*avlp = fsavl_create(sd.fss)) == NULL) { | |
60a2434b | 718 | fnvlist_free(sd.fss); |
34dc7c2f BB |
719 | *nvlp = NULL; |
720 | return (EZFS_NOMEM); | |
721 | } | |
722 | ||
723 | *nvlp = sd.fss; | |
724 | return (0); | |
725 | } | |
726 | ||
34dc7c2f BB |
727 | /* |
728 | * Routines specific to "zfs send" | |
729 | */ | |
730 | typedef struct send_dump_data { | |
731 | /* these are all just the short snapname (the part after the @) */ | |
732 | const char *fromsnap; | |
733 | const char *tosnap; | |
eca7b760 | 734 | char prevsnap[ZFS_MAX_DATASET_NAME_LEN]; |
572e2857 | 735 | uint64_t prevsnap_obj; |
34dc7c2f | 736 | boolean_t seenfrom, seento, replicate, doall, fromorigin; |
30af21b0 | 737 | boolean_t dryrun, parsable, progress, embed_data, std_out; |
9c5e88b1 | 738 | boolean_t large_block, compress, raw, holds; |
19d39615 | 739 | boolean_t progressastitle; |
34dc7c2f BB |
740 | int outfd; |
741 | boolean_t err; | |
742 | nvlist_t *fss; | |
95fd54a1 | 743 | nvlist_t *snapholds; |
34dc7c2f | 744 | avl_tree_t *fsavl; |
428870ff BB |
745 | snapfilter_cb_t *filter_cb; |
746 | void *filter_cb_arg; | |
747 | nvlist_t *debugnv; | |
eca7b760 | 748 | char holdtag[ZFS_MAX_DATASET_NAME_LEN]; |
572e2857 | 749 | int cleanup_fd; |
30af21b0 | 750 | int verbosity; |
330d06f9 | 751 | uint64_t size; |
34dc7c2f BB |
752 | } send_dump_data_t; |
753 | ||
330d06f9 | 754 | static int |
cf7684bc | 755 | zfs_send_space(zfs_handle_t *zhp, const char *snapname, const char *from, |
756 | enum lzc_send_flags flags, uint64_t *spacep) | |
330d06f9 | 757 | { |
cf7684bc | 758 | assert(snapname != NULL); |
330d06f9 | 759 | |
a8747c04 RM |
760 | int error = lzc_send_space(snapname, from, flags, spacep); |
761 | if (error == 0) | |
762 | return (0); | |
763 | ||
d68a2bfa | 764 | char errbuf[ERRBUFLEN]; |
a8747c04 RM |
765 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
766 | "warning: cannot estimate space for '%s'"), snapname); | |
330d06f9 | 767 | |
a8747c04 RM |
768 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
769 | switch (error) { | |
770 | case EXDEV: | |
771 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
772 | "not an earlier snapshot from the same fs")); | |
773 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
774 | ||
775 | case ENOENT: | |
776 | if (zfs_dataset_exists(hdl, snapname, | |
777 | ZFS_TYPE_SNAPSHOT)) { | |
330d06f9 | 778 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
a8747c04 RM |
779 | "incremental source (%s) does not exist"), |
780 | snapname); | |
330d06f9 | 781 | } |
a8747c04 RM |
782 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); |
783 | ||
784 | case EDQUOT: | |
785 | case EFBIG: | |
786 | case EIO: | |
787 | case ENOLINK: | |
788 | case ENOSPC: | |
789 | case ENOSTR: | |
790 | case ENXIO: | |
791 | case EPIPE: | |
792 | case ERANGE: | |
793 | case EFAULT: | |
794 | case EROFS: | |
795 | case EINVAL: | |
796 | zfs_error_aux(hdl, "%s", strerror(error)); | |
797 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); | |
798 | ||
799 | default: | |
800 | return (zfs_standard_error(hdl, error, errbuf)); | |
330d06f9 | 801 | } |
330d06f9 MA |
802 | } |
803 | ||
34dc7c2f BB |
804 | /* |
805 | * Dumps a backup of the given snapshot (incremental from fromsnap if it's not | |
806 | * NULL) to the file descriptor specified by outfd. | |
807 | */ | |
808 | static int | |
572e2857 | 809 | dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, uint64_t fromsnap_obj, |
9b67f605 MA |
810 | boolean_t fromorigin, int outfd, enum lzc_send_flags flags, |
811 | nvlist_t *debugnv) | |
34dc7c2f | 812 | { |
13fe0198 | 813 | zfs_cmd_t zc = {"\0"}; |
34dc7c2f | 814 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
428870ff | 815 | nvlist_t *thisdbg; |
34dc7c2f BB |
816 | |
817 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); | |
572e2857 | 818 | assert(fromsnap_obj == 0 || !fromorigin); |
34dc7c2f BB |
819 | |
820 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); | |
34dc7c2f BB |
821 | zc.zc_cookie = outfd; |
822 | zc.zc_obj = fromorigin; | |
572e2857 BB |
823 | zc.zc_sendobj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID); |
824 | zc.zc_fromobj = fromsnap_obj; | |
9b67f605 | 825 | zc.zc_flags = flags; |
428870ff | 826 | |
25074b47 RM |
827 | if (debugnv != NULL) { |
828 | thisdbg = fnvlist_alloc(); | |
829 | if (fromsnap != NULL && fromsnap[0] != '\0') | |
830 | fnvlist_add_string(thisdbg, "fromsnap", fromsnap); | |
428870ff BB |
831 | } |
832 | ||
330d06f9 | 833 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SEND, &zc) != 0) { |
d68a2bfa | 834 | char errbuf[ERRBUFLEN]; |
25074b47 RM |
835 | int error = errno; |
836 | ||
806739f9 DS |
837 | (void) snprintf(errbuf, sizeof (errbuf), "%s '%s'", |
838 | dgettext(TEXT_DOMAIN, "warning: cannot send"), | |
839 | zhp->zfs_name); | |
34dc7c2f | 840 | |
25074b47 RM |
841 | if (debugnv != NULL) { |
842 | fnvlist_add_uint64(thisdbg, "error", error); | |
60a2434b | 843 | fnvlist_add_nvlist(debugnv, zhp->zfs_name, thisdbg); |
25074b47 | 844 | fnvlist_free(thisdbg); |
428870ff | 845 | } |
428870ff | 846 | |
25074b47 | 847 | switch (error) { |
34dc7c2f BB |
848 | case EXDEV: |
849 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
850 | "not an earlier snapshot from the same fs")); | |
851 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
852 | ||
b5256303 TC |
853 | case EACCES: |
854 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
855 | "source key must be loaded")); | |
856 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
857 | ||
34dc7c2f BB |
858 | case ENOENT: |
859 | if (zfs_dataset_exists(hdl, zc.zc_name, | |
860 | ZFS_TYPE_SNAPSHOT)) { | |
861 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
862 | "incremental source (@%s) does not exist"), | |
863 | zc.zc_value); | |
864 | } | |
865 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
866 | ||
867 | case EDQUOT: | |
868 | case EFBIG: | |
869 | case EIO: | |
870 | case ENOLINK: | |
871 | case ENOSPC: | |
872 | case ENOSTR: | |
873 | case ENXIO: | |
874 | case EPIPE: | |
875 | case ERANGE: | |
876 | case EFAULT: | |
877 | case EROFS: | |
860051f1 | 878 | case EINVAL: |
f00f4690 | 879 | zfs_error_aux(hdl, "%s", strerror(errno)); |
34dc7c2f BB |
880 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); |
881 | ||
882 | default: | |
883 | return (zfs_standard_error(hdl, errno, errbuf)); | |
884 | } | |
885 | } | |
886 | ||
25074b47 | 887 | if (debugnv != NULL) { |
60a2434b | 888 | fnvlist_add_nvlist(debugnv, zhp->zfs_name, thisdbg); |
25074b47 RM |
889 | fnvlist_free(thisdbg); |
890 | } | |
428870ff | 891 | |
34dc7c2f BB |
892 | return (0); |
893 | } | |
894 | ||
95fd54a1 SH |
895 | static void |
896 | gather_holds(zfs_handle_t *zhp, send_dump_data_t *sdd) | |
572e2857 | 897 | { |
572e2857 BB |
898 | assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT); |
899 | ||
900 | /* | |
95fd54a1 | 901 | * zfs_send() only sets snapholds for sends that need them, |
572e2857 BB |
902 | * e.g. replication and doall. |
903 | */ | |
95fd54a1 SH |
904 | if (sdd->snapholds == NULL) |
905 | return; | |
572e2857 | 906 | |
95fd54a1 | 907 | fnvlist_add_string(sdd->snapholds, zhp->zfs_name, sdd->holdtag); |
572e2857 BB |
908 | } |
909 | ||
30af21b0 PD |
910 | int |
911 | zfs_send_progress(zfs_handle_t *zhp, int fd, uint64_t *bytes_written, | |
912 | uint64_t *blocks_visited) | |
913 | { | |
659f4008 RM |
914 | zfs_cmd_t zc = {"\0"}; |
915 | ||
24f1aa02 RM |
916 | if (bytes_written != NULL) |
917 | *bytes_written = 0; | |
918 | if (blocks_visited != NULL) | |
919 | *blocks_visited = 0; | |
30af21b0 PD |
920 | (void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name)); |
921 | zc.zc_cookie = fd; | |
922 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_SEND_PROGRESS, &zc) != 0) | |
923 | return (errno); | |
924 | if (bytes_written != NULL) | |
925 | *bytes_written = zc.zc_cookie; | |
926 | if (blocks_visited != NULL) | |
927 | *blocks_visited = zc.zc_objset_type; | |
928 | return (0); | |
929 | } | |
930 | ||
37abac6d BP |
931 | static void * |
932 | send_progress_thread(void *arg) | |
933 | { | |
934 | progress_arg_t *pa = arg; | |
37abac6d | 935 | zfs_handle_t *zhp = pa->pa_zhp; |
30af21b0 PD |
936 | uint64_t bytes; |
937 | uint64_t blocks; | |
19d39615 | 938 | uint64_t total = pa->pa_size / 100; |
37abac6d | 939 | char buf[16]; |
37abac6d | 940 | time_t t; |
8ab27948 | 941 | struct tm tm; |
fbcc25c9 RM |
942 | int err; |
943 | ||
05b72415 | 944 | if (!pa->pa_parsable && pa->pa_progress) { |
fbcc25c9 RM |
945 | (void) fprintf(stderr, |
946 | "TIME %s %sSNAPSHOT %s\n", | |
947 | pa->pa_estimate ? "BYTES" : " SENT", | |
948 | pa->pa_verbosity >= 2 ? " BLOCKS " : "", | |
949 | zhp->zfs_name); | |
950 | } | |
37abac6d BP |
951 | |
952 | /* | |
953 | * Print the progress from ZFS_IOC_SEND_PROGRESS every second. | |
954 | */ | |
955 | for (;;) { | |
956 | (void) sleep(1); | |
30af21b0 PD |
957 | if ((err = zfs_send_progress(zhp, pa->pa_fd, &bytes, |
958 | &blocks)) != 0) { | |
959 | if (err == EINTR || err == ENOENT) | |
960 | return ((void *)0); | |
961 | return ((void *)(uintptr_t)err); | |
962 | } | |
37abac6d | 963 | |
37abac6d | 964 | (void) time(&t); |
8ab27948 | 965 | localtime_r(&t, &tm); |
37abac6d | 966 | |
19d39615 AH |
967 | if (pa->pa_astitle) { |
968 | char buf_bytes[16]; | |
969 | char buf_size[16]; | |
970 | int pct; | |
971 | zfs_nicenum(bytes, buf_bytes, sizeof (buf_bytes)); | |
972 | zfs_nicenum(pa->pa_size, buf_size, sizeof (buf_size)); | |
973 | pct = (total > 0) ? bytes / total : 100; | |
974 | zfs_setproctitle("sending %s (%d%%: %s/%s)", | |
975 | zhp->zfs_name, MIN(pct, 100), buf_bytes, buf_size); | |
976 | } | |
977 | ||
30af21b0 PD |
978 | if (pa->pa_verbosity >= 2 && pa->pa_parsable) { |
979 | (void) fprintf(stderr, | |
980 | "%02d:%02d:%02d\t%llu\t%llu\t%s\n", | |
8ab27948 | 981 | tm.tm_hour, tm.tm_min, tm.tm_sec, |
30af21b0 PD |
982 | (u_longlong_t)bytes, (u_longlong_t)blocks, |
983 | zhp->zfs_name); | |
984 | } else if (pa->pa_verbosity >= 2) { | |
985 | zfs_nicenum(bytes, buf, sizeof (buf)); | |
986 | (void) fprintf(stderr, | |
987 | "%02d:%02d:%02d %5s %8llu %s\n", | |
8ab27948 | 988 | tm.tm_hour, tm.tm_min, tm.tm_sec, |
30af21b0 PD |
989 | buf, (u_longlong_t)blocks, zhp->zfs_name); |
990 | } else if (pa->pa_parsable) { | |
37abac6d | 991 | (void) fprintf(stderr, "%02d:%02d:%02d\t%llu\t%s\n", |
8ab27948 | 992 | tm.tm_hour, tm.tm_min, tm.tm_sec, |
30af21b0 | 993 | (u_longlong_t)bytes, zhp->zfs_name); |
05b72415 | 994 | } else if (pa->pa_progress) { |
e7fbeb60 | 995 | zfs_nicebytes(bytes, buf, sizeof (buf)); |
37abac6d | 996 | (void) fprintf(stderr, "%02d:%02d:%02d %5s %s\n", |
8ab27948 | 997 | tm.tm_hour, tm.tm_min, tm.tm_sec, |
37abac6d BP |
998 | buf, zhp->zfs_name); |
999 | } | |
1000 | } | |
1001 | } | |
1002 | ||
e3e4c30b AZ |
1003 | static boolean_t |
1004 | send_progress_thread_exit(libzfs_handle_t *hdl, pthread_t ptid) | |
1005 | { | |
1006 | void *status = NULL; | |
1007 | (void) pthread_cancel(ptid); | |
1008 | (void) pthread_join(ptid, &status); | |
1009 | int error = (int)(uintptr_t)status; | |
1010 | if (error != 0 && status != PTHREAD_CANCELED) | |
1011 | return (zfs_standard_error(hdl, error, | |
1012 | dgettext(TEXT_DOMAIN, "progress thread exited nonzero"))); | |
1013 | else | |
1014 | return (B_FALSE); | |
1015 | } | |
1016 | ||
47dfff3b MA |
1017 | static void |
1018 | send_print_verbose(FILE *fout, const char *tosnap, const char *fromsnap, | |
1019 | uint64_t size, boolean_t parsable) | |
1020 | { | |
1021 | if (parsable) { | |
1022 | if (fromsnap != NULL) { | |
447e90e3 RM |
1023 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
1024 | "incremental\t%s\t%s"), fromsnap, tosnap); | |
47dfff3b | 1025 | } else { |
3c1e1933 DS |
1026 | /* |
1027 | * Workaround for GCC 12+ with UBSan enabled deficencies. | |
1028 | * | |
1029 | * GCC 12+ invoked with -fsanitize=undefined incorrectly reports the code | |
1030 | * below as violating -Wformat-overflow. | |
1031 | */ | |
1032 | #if defined(__GNUC__) && !defined(__clang__) && \ | |
1033 | defined(ZFS_UBSAN_ENABLED) && defined(HAVE_FORMAT_OVERFLOW) | |
1034 | #pragma GCC diagnostic push | |
1035 | #pragma GCC diagnostic ignored "-Wformat-overflow" | |
1036 | #endif | |
447e90e3 RM |
1037 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
1038 | "full\t%s"), tosnap); | |
3c1e1933 DS |
1039 | #if defined(__GNUC__) && !defined(__clang__) && \ |
1040 | defined(ZFS_UBSAN_ENABLED) && defined(HAVE_FORMAT_OVERFLOW) | |
1041 | #pragma GCC diagnostic pop | |
1042 | #endif | |
47dfff3b | 1043 | } |
447e90e3 | 1044 | (void) fprintf(fout, "\t%llu", (longlong_t)size); |
47dfff3b MA |
1045 | } else { |
1046 | if (fromsnap != NULL) { | |
1047 | if (strchr(fromsnap, '@') == NULL && | |
1048 | strchr(fromsnap, '#') == NULL) { | |
1049 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
447e90e3 | 1050 | "send from @%s to %s"), fromsnap, tosnap); |
47dfff3b MA |
1051 | } else { |
1052 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
447e90e3 | 1053 | "send from %s to %s"), fromsnap, tosnap); |
47dfff3b MA |
1054 | } |
1055 | } else { | |
1056 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
447e90e3 RM |
1057 | "full send of %s"), tosnap); |
1058 | } | |
1059 | if (size != 0) { | |
1060 | char buf[16]; | |
1061 | zfs_nicebytes(size, buf, sizeof (buf)); | |
3c1e1933 DS |
1062 | /* |
1063 | * Workaround for GCC 12+ with UBSan enabled deficencies. | |
1064 | * | |
1065 | * GCC 12+ invoked with -fsanitize=undefined incorrectly reports the code | |
1066 | * below as violating -Wformat-overflow. | |
1067 | */ | |
1068 | #if defined(__GNUC__) && !defined(__clang__) && \ | |
1069 | defined(ZFS_UBSAN_ENABLED) && defined(HAVE_FORMAT_OVERFLOW) | |
1070 | #pragma GCC diagnostic push | |
1071 | #pragma GCC diagnostic ignored "-Wformat-overflow" | |
1072 | #endif | |
447e90e3 RM |
1073 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
1074 | " estimated size is %s"), buf); | |
3c1e1933 DS |
1075 | #if defined(__GNUC__) && !defined(__clang__) && \ |
1076 | defined(ZFS_UBSAN_ENABLED) && defined(HAVE_FORMAT_OVERFLOW) | |
1077 | #pragma GCC diagnostic pop | |
1078 | #endif | |
47dfff3b | 1079 | } |
47dfff3b MA |
1080 | } |
1081 | (void) fprintf(fout, "\n"); | |
1082 | } | |
1083 | ||
1ae78351 RM |
1084 | /* |
1085 | * Send a single filesystem snapshot, updating the send dump data. | |
1086 | * This interface is intended for use as a zfs_iter_snapshots_sorted visitor. | |
1087 | */ | |
34dc7c2f BB |
1088 | static int |
1089 | dump_snapshot(zfs_handle_t *zhp, void *arg) | |
1090 | { | |
1091 | send_dump_data_t *sdd = arg; | |
37abac6d BP |
1092 | progress_arg_t pa = { 0 }; |
1093 | pthread_t tid; | |
572e2857 | 1094 | char *thissnap; |
2aa34383 | 1095 | enum lzc_send_flags flags = 0; |
34dc7c2f | 1096 | int err; |
330d06f9 | 1097 | boolean_t isfromsnap, istosnap, fromorigin; |
428870ff | 1098 | boolean_t exclude = B_FALSE; |
93f6d7e2 | 1099 | FILE *fout = sdd->std_out ? stdout : stderr; |
34dc7c2f | 1100 | |
95fd54a1 | 1101 | err = 0; |
34dc7c2f | 1102 | thissnap = strchr(zhp->zfs_name, '@') + 1; |
428870ff BB |
1103 | isfromsnap = (sdd->fromsnap != NULL && |
1104 | strcmp(sdd->fromsnap, thissnap) == 0); | |
34dc7c2f | 1105 | |
428870ff | 1106 | if (!sdd->seenfrom && isfromsnap) { |
95fd54a1 SH |
1107 | gather_holds(zhp, sdd); |
1108 | sdd->seenfrom = B_TRUE; | |
1ae78351 | 1109 | (void) strlcpy(sdd->prevsnap, thissnap, sizeof (sdd->prevsnap)); |
95fd54a1 | 1110 | sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID); |
34dc7c2f | 1111 | zfs_close(zhp); |
95fd54a1 | 1112 | return (0); |
34dc7c2f BB |
1113 | } |
1114 | ||
1115 | if (sdd->seento || !sdd->seenfrom) { | |
1116 | zfs_close(zhp); | |
1117 | return (0); | |
1118 | } | |
1119 | ||
428870ff BB |
1120 | istosnap = (strcmp(sdd->tosnap, thissnap) == 0); |
1121 | if (istosnap) | |
1122 | sdd->seento = B_TRUE; | |
1123 | ||
2aa34383 DK |
1124 | if (sdd->large_block) |
1125 | flags |= LZC_SEND_FLAG_LARGE_BLOCK; | |
1126 | if (sdd->embed_data) | |
1127 | flags |= LZC_SEND_FLAG_EMBED_DATA; | |
1128 | if (sdd->compress) | |
1129 | flags |= LZC_SEND_FLAG_COMPRESS; | |
b5256303 TC |
1130 | if (sdd->raw) |
1131 | flags |= LZC_SEND_FLAG_RAW; | |
2aa34383 | 1132 | |
428870ff BB |
1133 | if (!sdd->doall && !isfromsnap && !istosnap) { |
1134 | if (sdd->replicate) { | |
d1807f16 | 1135 | const char *snapname; |
428870ff BB |
1136 | nvlist_t *snapprops; |
1137 | /* | |
1138 | * Filter out all intermediate snapshots except origin | |
1139 | * snapshots needed to replicate clones. | |
1140 | */ | |
1141 | nvlist_t *nvfs = fsavl_find(sdd->fsavl, | |
1142 | zhp->zfs_dmustats.dds_guid, &snapname); | |
1143 | ||
97bbeeb9 RM |
1144 | if (nvfs != NULL) { |
1145 | snapprops = fnvlist_lookup_nvlist(nvfs, | |
1146 | "snapprops"); | |
1147 | snapprops = fnvlist_lookup_nvlist(snapprops, | |
1148 | thissnap); | |
1149 | exclude = !nvlist_exists(snapprops, | |
1150 | "is_clone_origin"); | |
1151 | } | |
428870ff BB |
1152 | } else { |
1153 | exclude = B_TRUE; | |
1154 | } | |
1155 | } | |
1156 | ||
1157 | /* | |
1158 | * If a filter function exists, call it to determine whether | |
1159 | * this snapshot will be sent. | |
1160 | */ | |
1161 | if (exclude || (sdd->filter_cb != NULL && | |
1162 | sdd->filter_cb(zhp, sdd->filter_cb_arg) == B_FALSE)) { | |
1163 | /* | |
1164 | * This snapshot is filtered out. Don't send it, and don't | |
572e2857 | 1165 | * set prevsnap_obj, so it will be as if this snapshot didn't |
428870ff BB |
1166 | * exist, and the next accepted snapshot will be sent as |
1167 | * an incremental from the last accepted one, or as the | |
1168 | * first (and full) snapshot in the case of a replication, | |
1169 | * non-incremental send. | |
1170 | */ | |
1171 | zfs_close(zhp); | |
1172 | return (0); | |
1173 | } | |
1174 | ||
95fd54a1 | 1175 | gather_holds(zhp, sdd); |
330d06f9 MA |
1176 | fromorigin = sdd->prevsnap[0] == '\0' && |
1177 | (sdd->fromorigin || sdd->replicate); | |
1178 | ||
30af21b0 | 1179 | if (sdd->verbosity != 0) { |
47dfff3b | 1180 | uint64_t size = 0; |
cf7684bc | 1181 | char fromds[ZFS_MAX_DATASET_NAME_LEN]; |
330d06f9 | 1182 | |
cf7684bc | 1183 | if (sdd->prevsnap[0] != '\0') { |
1184 | (void) strlcpy(fromds, zhp->zfs_name, sizeof (fromds)); | |
1185 | *(strchr(fromds, '@') + 1) = '\0'; | |
1186 | (void) strlcat(fromds, sdd->prevsnap, sizeof (fromds)); | |
1187 | } | |
1188 | if (zfs_send_space(zhp, zhp->zfs_name, | |
1ae78351 | 1189 | sdd->prevsnap[0] ? fromds : NULL, flags, &size) == 0) { |
cf7684bc | 1190 | send_print_verbose(fout, zhp->zfs_name, |
1191 | sdd->prevsnap[0] ? sdd->prevsnap : NULL, | |
1192 | size, sdd->parsable); | |
1ae78351 | 1193 | sdd->size += size; |
cf7684bc | 1194 | } |
34dc7c2f BB |
1195 | } |
1196 | ||
330d06f9 | 1197 | if (!sdd->dryrun) { |
37abac6d BP |
1198 | /* |
1199 | * If progress reporting is requested, spawn a new thread to | |
1200 | * poll ZFS_IOC_SEND_PROGRESS at a regular interval. | |
1201 | */ | |
19d39615 | 1202 | if (sdd->progress || sdd->progressastitle) { |
37abac6d BP |
1203 | pa.pa_zhp = zhp; |
1204 | pa.pa_fd = sdd->outfd; | |
1205 | pa.pa_parsable = sdd->parsable; | |
30af21b0 PD |
1206 | pa.pa_estimate = B_FALSE; |
1207 | pa.pa_verbosity = sdd->verbosity; | |
19d39615 AH |
1208 | pa.pa_size = sdd->size; |
1209 | pa.pa_astitle = sdd->progressastitle; | |
05b72415 | 1210 | pa.pa_progress = sdd->progress; |
37abac6d BP |
1211 | |
1212 | if ((err = pthread_create(&tid, NULL, | |
23d70cde | 1213 | send_progress_thread, &pa)) != 0) { |
37abac6d BP |
1214 | zfs_close(zhp); |
1215 | return (err); | |
1216 | } | |
1217 | } | |
1218 | ||
330d06f9 | 1219 | err = dump_ioctl(zhp, sdd->prevsnap, sdd->prevsnap_obj, |
9b67f605 | 1220 | fromorigin, sdd->outfd, flags, sdd->debugnv); |
37abac6d | 1221 | |
19d39615 | 1222 | if ((sdd->progress || sdd->progressastitle) && |
e3e4c30b AZ |
1223 | send_progress_thread_exit(zhp->zfs_hdl, tid)) |
1224 | return (-1); | |
330d06f9 | 1225 | } |
34dc7c2f | 1226 | |
a51288aa | 1227 | (void) strlcpy(sdd->prevsnap, thissnap, sizeof (sdd->prevsnap)); |
572e2857 | 1228 | sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID); |
34dc7c2f BB |
1229 | zfs_close(zhp); |
1230 | return (err); | |
1231 | } | |
1232 | ||
1910a308 RM |
1233 | /* |
1234 | * Send all snapshots for a filesystem, updating the send dump data. | |
1235 | */ | |
34dc7c2f | 1236 | static int |
1910a308 | 1237 | dump_filesystem(zfs_handle_t *zhp, send_dump_data_t *sdd) |
34dc7c2f BB |
1238 | { |
1239 | int rv = 0; | |
34dc7c2f | 1240 | boolean_t missingfrom = B_FALSE; |
13fe0198 | 1241 | zfs_cmd_t zc = {"\0"}; |
4c0883fb | 1242 | uint64_t min_txg = 0, max_txg = 0; |
34dc7c2f | 1243 | |
1910a308 RM |
1244 | /* |
1245 | * Make sure the tosnap exists. | |
1246 | */ | |
34dc7c2f BB |
1247 | (void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s", |
1248 | zhp->zfs_name, sdd->tosnap); | |
b834b58a | 1249 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_STATS, &zc) != 0) { |
330d06f9 MA |
1250 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
1251 | "WARNING: could not send %s@%s: does not exist\n"), | |
34dc7c2f BB |
1252 | zhp->zfs_name, sdd->tosnap); |
1253 | sdd->err = B_TRUE; | |
1254 | return (0); | |
1255 | } | |
1256 | ||
1910a308 RM |
1257 | /* |
1258 | * If this fs does not have fromsnap, and we're doing | |
1259 | * recursive, we need to send a full stream from the | |
1260 | * beginning (or an incremental from the origin if this | |
1261 | * is a clone). If we're doing non-recursive, then let | |
1262 | * them get the error. | |
1263 | */ | |
34dc7c2f BB |
1264 | if (sdd->replicate && sdd->fromsnap) { |
1265 | /* | |
1910a308 | 1266 | * Make sure the fromsnap exists. |
34dc7c2f BB |
1267 | */ |
1268 | (void) snprintf(zc.zc_name, sizeof (zc.zc_name), "%s@%s", | |
1269 | zhp->zfs_name, sdd->fromsnap); | |
1910a308 | 1270 | if (zfs_ioctl(zhp->zfs_hdl, ZFS_IOC_OBJSET_STATS, &zc) != 0) |
34dc7c2f | 1271 | missingfrom = B_TRUE; |
34dc7c2f BB |
1272 | } |
1273 | ||
1910a308 RM |
1274 | sdd->seenfrom = sdd->seento = B_FALSE; |
1275 | sdd->prevsnap[0] = '\0'; | |
572e2857 | 1276 | sdd->prevsnap_obj = 0; |
428870ff BB |
1277 | if (sdd->fromsnap == NULL || missingfrom) |
1278 | sdd->seenfrom = B_TRUE; | |
34dc7c2f | 1279 | |
f94b3cbf TC |
1280 | /* |
1281 | * Iterate through all snapshots and process the ones we will be | |
1282 | * sending. If we only have a "from" and "to" snapshot to deal | |
1283 | * with, we can avoid iterating through all the other snapshots. | |
1284 | */ | |
1285 | if (sdd->doall || sdd->replicate || sdd->tosnap == NULL) { | |
1910a308 RM |
1286 | if (!sdd->replicate) { |
1287 | if (sdd->fromsnap != NULL) { | |
1288 | min_txg = get_snap_txg(zhp->zfs_hdl, | |
1289 | zhp->zfs_name, sdd->fromsnap); | |
1290 | } | |
1291 | if (sdd->tosnap != NULL) { | |
1292 | max_txg = get_snap_txg(zhp->zfs_hdl, | |
1293 | zhp->zfs_name, sdd->tosnap); | |
1294 | } | |
1295 | } | |
dc95911d | 1296 | rv = zfs_iter_snapshots_sorted(zhp, 0, dump_snapshot, sdd, |
f94b3cbf TC |
1297 | min_txg, max_txg); |
1298 | } else { | |
1299 | char snapname[MAXPATHLEN] = { 0 }; | |
1300 | zfs_handle_t *snap; | |
1301 | ||
1910a308 | 1302 | /* Dump fromsnap. */ |
f94b3cbf | 1303 | if (!sdd->seenfrom) { |
f0ce0436 | 1304 | (void) snprintf(snapname, sizeof (snapname), |
f94b3cbf TC |
1305 | "%s@%s", zhp->zfs_name, sdd->fromsnap); |
1306 | snap = zfs_open(zhp->zfs_hdl, snapname, | |
1307 | ZFS_TYPE_SNAPSHOT); | |
1308 | if (snap != NULL) | |
1309 | rv = dump_snapshot(snap, sdd); | |
1310 | else | |
5f73bbba | 1311 | rv = errno; |
f94b3cbf TC |
1312 | } |
1313 | ||
1910a308 | 1314 | /* Dump tosnap. */ |
f94b3cbf | 1315 | if (rv == 0) { |
f0ce0436 | 1316 | (void) snprintf(snapname, sizeof (snapname), |
f94b3cbf TC |
1317 | "%s@%s", zhp->zfs_name, sdd->tosnap); |
1318 | snap = zfs_open(zhp->zfs_hdl, snapname, | |
1319 | ZFS_TYPE_SNAPSHOT); | |
1320 | if (snap != NULL) | |
1321 | rv = dump_snapshot(snap, sdd); | |
1322 | else | |
5f73bbba | 1323 | rv = errno; |
f94b3cbf TC |
1324 | } |
1325 | } | |
1326 | ||
428870ff | 1327 | if (!sdd->seenfrom) { |
330d06f9 | 1328 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
428870ff | 1329 | "WARNING: could not send %s@%s:\n" |
330d06f9 | 1330 | "incremental source (%s@%s) does not exist\n"), |
428870ff BB |
1331 | zhp->zfs_name, sdd->tosnap, |
1332 | zhp->zfs_name, sdd->fromsnap); | |
1333 | sdd->err = B_TRUE; | |
1334 | } else if (!sdd->seento) { | |
1335 | if (sdd->fromsnap) { | |
330d06f9 | 1336 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
34dc7c2f | 1337 | "WARNING: could not send %s@%s:\n" |
428870ff | 1338 | "incremental source (%s@%s) " |
330d06f9 | 1339 | "is not earlier than it\n"), |
34dc7c2f BB |
1340 | zhp->zfs_name, sdd->tosnap, |
1341 | zhp->zfs_name, sdd->fromsnap); | |
34dc7c2f | 1342 | } else { |
330d06f9 MA |
1343 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, |
1344 | "WARNING: " | |
1345 | "could not send %s@%s: does not exist\n"), | |
428870ff | 1346 | zhp->zfs_name, sdd->tosnap); |
34dc7c2f | 1347 | } |
428870ff | 1348 | sdd->err = B_TRUE; |
34dc7c2f BB |
1349 | } |
1350 | ||
1351 | return (rv); | |
1352 | } | |
1353 | ||
45932229 RM |
1354 | /* |
1355 | * Send all snapshots for all filesystems in sdd. | |
1356 | */ | |
34dc7c2f | 1357 | static int |
45932229 | 1358 | dump_filesystems(zfs_handle_t *rzhp, send_dump_data_t *sdd) |
34dc7c2f | 1359 | { |
34dc7c2f BB |
1360 | nvpair_t *fspair; |
1361 | boolean_t needagain, progress; | |
1362 | ||
1363 | if (!sdd->replicate) | |
1364 | return (dump_filesystem(rzhp, sdd)); | |
1365 | ||
428870ff BB |
1366 | /* Mark the clone origin snapshots. */ |
1367 | for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; | |
1368 | fspair = nvlist_next_nvpair(sdd->fss, fspair)) { | |
1369 | nvlist_t *nvfs; | |
1370 | uint64_t origin_guid = 0; | |
1371 | ||
60a2434b | 1372 | nvfs = fnvpair_value_nvlist(fspair); |
428870ff BB |
1373 | (void) nvlist_lookup_uint64(nvfs, "origin", &origin_guid); |
1374 | if (origin_guid != 0) { | |
d1807f16 | 1375 | const char *snapname; |
428870ff BB |
1376 | nvlist_t *origin_nv = fsavl_find(sdd->fsavl, |
1377 | origin_guid, &snapname); | |
1378 | if (origin_nv != NULL) { | |
1379 | nvlist_t *snapprops; | |
60a2434b RM |
1380 | snapprops = fnvlist_lookup_nvlist(origin_nv, |
1381 | "snapprops"); | |
1382 | snapprops = fnvlist_lookup_nvlist(snapprops, | |
1383 | snapname); | |
1384 | fnvlist_add_boolean(snapprops, | |
1385 | "is_clone_origin"); | |
428870ff BB |
1386 | } |
1387 | } | |
1388 | } | |
34dc7c2f BB |
1389 | again: |
1390 | needagain = progress = B_FALSE; | |
1391 | for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; | |
1392 | fspair = nvlist_next_nvpair(sdd->fss, fspair)) { | |
330d06f9 | 1393 | nvlist_t *fslist, *parent_nv; |
d1807f16 | 1394 | const char *fsname; |
34dc7c2f BB |
1395 | zfs_handle_t *zhp; |
1396 | int err; | |
1397 | uint64_t origin_guid = 0; | |
330d06f9 | 1398 | uint64_t parent_guid = 0; |
34dc7c2f | 1399 | |
60a2434b | 1400 | fslist = fnvpair_value_nvlist(fspair); |
34dc7c2f BB |
1401 | if (nvlist_lookup_boolean(fslist, "sent") == 0) |
1402 | continue; | |
1403 | ||
60a2434b | 1404 | fsname = fnvlist_lookup_string(fslist, "name"); |
34dc7c2f | 1405 | (void) nvlist_lookup_uint64(fslist, "origin", &origin_guid); |
330d06f9 MA |
1406 | (void) nvlist_lookup_uint64(fslist, "parentfromsnap", |
1407 | &parent_guid); | |
1408 | ||
1409 | if (parent_guid != 0) { | |
1410 | parent_nv = fsavl_find(sdd->fsavl, parent_guid, NULL); | |
1411 | if (!nvlist_exists(parent_nv, "sent")) { | |
45932229 | 1412 | /* Parent has not been sent; skip this one. */ |
330d06f9 MA |
1413 | needagain = B_TRUE; |
1414 | continue; | |
1415 | } | |
1416 | } | |
34dc7c2f | 1417 | |
428870ff BB |
1418 | if (origin_guid != 0) { |
1419 | nvlist_t *origin_nv = fsavl_find(sdd->fsavl, | |
1420 | origin_guid, NULL); | |
1421 | if (origin_nv != NULL && | |
330d06f9 | 1422 | !nvlist_exists(origin_nv, "sent")) { |
428870ff | 1423 | /* |
45932229 | 1424 | * Origin has not been sent yet; |
428870ff BB |
1425 | * skip this clone. |
1426 | */ | |
1427 | needagain = B_TRUE; | |
1428 | continue; | |
1429 | } | |
34dc7c2f BB |
1430 | } |
1431 | ||
1432 | zhp = zfs_open(rzhp->zfs_hdl, fsname, ZFS_TYPE_DATASET); | |
1433 | if (zhp == NULL) | |
1434 | return (-1); | |
1435 | err = dump_filesystem(zhp, sdd); | |
60a2434b | 1436 | fnvlist_add_boolean(fslist, "sent"); |
34dc7c2f BB |
1437 | progress = B_TRUE; |
1438 | zfs_close(zhp); | |
1439 | if (err) | |
1440 | return (err); | |
1441 | } | |
1442 | if (needagain) { | |
1443 | assert(progress); | |
1444 | goto again; | |
1445 | } | |
330d06f9 | 1446 | |
45932229 | 1447 | /* Clean out the sent flags in case we reuse this fss. */ |
330d06f9 MA |
1448 | for (fspair = nvlist_next_nvpair(sdd->fss, NULL); fspair; |
1449 | fspair = nvlist_next_nvpair(sdd->fss, fspair)) { | |
1450 | nvlist_t *fslist; | |
1451 | ||
60a2434b | 1452 | fslist = fnvpair_value_nvlist(fspair); |
330d06f9 MA |
1453 | (void) nvlist_remove_all(fslist, "sent"); |
1454 | } | |
1455 | ||
34dc7c2f BB |
1456 | return (0); |
1457 | } | |
1458 | ||
47dfff3b MA |
1459 | nvlist_t * |
1460 | zfs_send_resume_token_to_nvlist(libzfs_handle_t *hdl, const char *token) | |
1461 | { | |
1462 | unsigned int version; | |
1463 | int nread, i; | |
1464 | unsigned long long checksum, packed_len; | |
1465 | ||
1466 | /* | |
1467 | * Decode token header, which is: | |
1468 | * <token version>-<checksum of payload>-<uncompressed payload length> | |
1469 | * Note that the only supported token version is 1. | |
1470 | */ | |
1471 | nread = sscanf(token, "%u-%llx-%llx-", | |
1472 | &version, &checksum, &packed_len); | |
1473 | if (nread != 3) { | |
1474 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1475 | "resume token is corrupt (invalid format)")); | |
1476 | return (NULL); | |
1477 | } | |
1478 | ||
1479 | if (version != ZFS_SEND_RESUME_TOKEN_VERSION) { | |
1480 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1481 | "resume token is corrupt (invalid version %u)"), | |
1482 | version); | |
1483 | return (NULL); | |
1484 | } | |
1485 | ||
2fafbfde | 1486 | /* Convert hexadecimal representation to binary. */ |
47dfff3b MA |
1487 | token = strrchr(token, '-') + 1; |
1488 | int len = strlen(token) / 2; | |
1489 | unsigned char *compressed = zfs_alloc(hdl, len); | |
1490 | for (i = 0; i < len; i++) { | |
1491 | nread = sscanf(token + i * 2, "%2hhx", compressed + i); | |
1492 | if (nread != 1) { | |
1493 | free(compressed); | |
1494 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1495 | "resume token is corrupt " | |
1496 | "(payload is not hex-encoded)")); | |
1497 | return (NULL); | |
1498 | } | |
1499 | } | |
1500 | ||
2fafbfde | 1501 | /* Verify checksum. */ |
47dfff3b | 1502 | zio_cksum_t cksum; |
fc897b24 | 1503 | fletcher_4_native_varsize(compressed, len, &cksum); |
47dfff3b MA |
1504 | if (cksum.zc_word[0] != checksum) { |
1505 | free(compressed); | |
1506 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1507 | "resume token is corrupt (incorrect checksum)")); | |
1508 | return (NULL); | |
1509 | } | |
1510 | ||
2fafbfde | 1511 | /* Uncompress. */ |
47dfff3b MA |
1512 | void *packed = zfs_alloc(hdl, packed_len); |
1513 | uLongf packed_len_long = packed_len; | |
1514 | if (uncompress(packed, &packed_len_long, compressed, len) != Z_OK || | |
1515 | packed_len_long != packed_len) { | |
1516 | free(packed); | |
1517 | free(compressed); | |
1518 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1519 | "resume token is corrupt (decompression failed)")); | |
1520 | return (NULL); | |
1521 | } | |
1522 | ||
2fafbfde | 1523 | /* Unpack nvlist. */ |
47dfff3b MA |
1524 | nvlist_t *nv; |
1525 | int error = nvlist_unpack(packed, packed_len, &nv, KM_SLEEP); | |
1526 | free(packed); | |
1527 | free(compressed); | |
1528 | if (error != 0) { | |
1529 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1530 | "resume token is corrupt (nvlist_unpack failed)")); | |
1531 | return (NULL); | |
1532 | } | |
1533 | return (nv); | |
1534 | } | |
2fafbfde | 1535 | |
30af21b0 PD |
1536 | static enum lzc_send_flags |
1537 | lzc_flags_from_sendflags(const sendflags_t *flags) | |
1538 | { | |
1539 | enum lzc_send_flags lzc_flags = 0; | |
d1a38ee7 | 1540 | |
30af21b0 PD |
1541 | if (flags->largeblock) |
1542 | lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; | |
1543 | if (flags->embed_data) | |
1544 | lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; | |
1545 | if (flags->compress) | |
1546 | lzc_flags |= LZC_SEND_FLAG_COMPRESS; | |
1547 | if (flags->raw) | |
1548 | lzc_flags |= LZC_SEND_FLAG_RAW; | |
ba0ba69e TC |
1549 | if (flags->saved) |
1550 | lzc_flags |= LZC_SEND_FLAG_SAVED; | |
d1a38ee7 | 1551 | |
30af21b0 PD |
1552 | return (lzc_flags); |
1553 | } | |
1554 | ||
1555 | static int | |
1556 | estimate_size(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags, | |
1557 | uint64_t resumeobj, uint64_t resumeoff, uint64_t bytes, | |
19d39615 | 1558 | const char *redactbook, char *errbuf, uint64_t *sizep) |
30af21b0 PD |
1559 | { |
1560 | uint64_t size; | |
1561 | FILE *fout = flags->dryrun ? stdout : stderr; | |
1562 | progress_arg_t pa = { 0 }; | |
1563 | int err = 0; | |
1564 | pthread_t ptid; | |
1565 | ||
19d39615 | 1566 | if (flags->progress || flags->progressastitle) { |
30af21b0 PD |
1567 | pa.pa_zhp = zhp; |
1568 | pa.pa_fd = fd; | |
1569 | pa.pa_parsable = flags->parsable; | |
1570 | pa.pa_estimate = B_TRUE; | |
1571 | pa.pa_verbosity = flags->verbosity; | |
1572 | ||
1573 | err = pthread_create(&ptid, NULL, | |
1574 | send_progress_thread, &pa); | |
1575 | if (err != 0) { | |
f00f4690 | 1576 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno)); |
30af21b0 PD |
1577 | return (zfs_error(zhp->zfs_hdl, |
1578 | EZFS_THREADCREATEFAILED, errbuf)); | |
1579 | } | |
1580 | } | |
1581 | ||
1582 | err = lzc_send_space_resume_redacted(zhp->zfs_name, from, | |
1583 | lzc_flags_from_sendflags(flags), resumeobj, resumeoff, bytes, | |
1584 | redactbook, fd, &size); | |
19d39615 | 1585 | *sizep = size; |
30af21b0 | 1586 | |
19d39615 AH |
1587 | if ((flags->progress || flags->progressastitle) && |
1588 | send_progress_thread_exit(zhp->zfs_hdl, ptid)) | |
e3e4c30b | 1589 | return (-1); |
30af21b0 | 1590 | |
19d39615 AH |
1591 | if (!flags->progress && !flags->parsable) |
1592 | return (err); | |
1593 | ||
30af21b0 | 1594 | if (err != 0) { |
f00f4690 | 1595 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err)); |
30af21b0 PD |
1596 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, |
1597 | errbuf)); | |
1598 | } | |
1599 | send_print_verbose(fout, zhp->zfs_name, from, size, | |
1600 | flags->parsable); | |
1601 | ||
1602 | if (flags->parsable) { | |
1603 | (void) fprintf(fout, "size\t%llu\n", (longlong_t)size); | |
1604 | } else { | |
1605 | char buf[16]; | |
1606 | zfs_nicenum(size, buf, sizeof (buf)); | |
1607 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, | |
1608 | "total estimated size is %s\n"), buf); | |
1609 | } | |
1610 | return (0); | |
1611 | } | |
1612 | ||
1613 | static boolean_t | |
1614 | redact_snaps_contains(const uint64_t *snaps, uint64_t num_snaps, uint64_t guid) | |
1615 | { | |
1616 | for (int i = 0; i < num_snaps; i++) { | |
1617 | if (snaps[i] == guid) | |
1618 | return (B_TRUE); | |
1619 | } | |
1620 | return (B_FALSE); | |
1621 | } | |
1622 | ||
1623 | static boolean_t | |
1624 | redact_snaps_equal(const uint64_t *snaps1, uint64_t num_snaps1, | |
1625 | const uint64_t *snaps2, uint64_t num_snaps2) | |
1626 | { | |
1627 | if (num_snaps1 != num_snaps2) | |
1628 | return (B_FALSE); | |
1629 | for (int i = 0; i < num_snaps1; i++) { | |
1630 | if (!redact_snaps_contains(snaps2, num_snaps2, snaps1[i])) | |
1631 | return (B_FALSE); | |
1632 | } | |
1633 | return (B_TRUE); | |
1634 | } | |
1635 | ||
102eb673 RM |
1636 | static int |
1637 | get_bookmarks(const char *path, nvlist_t **bmarksp) | |
1638 | { | |
1639 | nvlist_t *props = fnvlist_alloc(); | |
1640 | int error; | |
1641 | ||
1642 | fnvlist_add_boolean(props, "redact_complete"); | |
1643 | fnvlist_add_boolean(props, zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS)); | |
1644 | error = lzc_get_bookmarks(path, props, bmarksp); | |
1645 | fnvlist_free(props); | |
1646 | return (error); | |
1647 | } | |
1648 | ||
1649 | static nvpair_t * | |
1650 | find_redact_pair(nvlist_t *bmarks, const uint64_t *redact_snap_guids, | |
1651 | int num_redact_snaps) | |
1652 | { | |
1653 | nvpair_t *pair; | |
1654 | ||
1655 | for (pair = nvlist_next_nvpair(bmarks, NULL); pair; | |
1656 | pair = nvlist_next_nvpair(bmarks, pair)) { | |
1657 | ||
1658 | nvlist_t *bmark = fnvpair_value_nvlist(pair); | |
1659 | nvlist_t *vallist = fnvlist_lookup_nvlist(bmark, | |
1660 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS)); | |
1661 | uint_t len = 0; | |
1662 | uint64_t *bmarksnaps = fnvlist_lookup_uint64_array(vallist, | |
1663 | ZPROP_VALUE, &len); | |
1664 | if (redact_snaps_equal(redact_snap_guids, | |
1665 | num_redact_snaps, bmarksnaps, len)) { | |
1666 | break; | |
1667 | } | |
1668 | } | |
1669 | return (pair); | |
1670 | } | |
1671 | ||
1672 | static boolean_t | |
1673 | get_redact_complete(nvpair_t *pair) | |
1674 | { | |
1675 | nvlist_t *bmark = fnvpair_value_nvlist(pair); | |
1676 | nvlist_t *vallist = fnvlist_lookup_nvlist(bmark, "redact_complete"); | |
1677 | boolean_t complete = fnvlist_lookup_boolean_value(vallist, | |
1678 | ZPROP_VALUE); | |
1679 | ||
1680 | return (complete); | |
1681 | } | |
1682 | ||
30af21b0 PD |
1683 | /* |
1684 | * Check that the list of redaction snapshots in the bookmark matches the send | |
1685 | * we're resuming, and return whether or not it's complete. | |
1686 | * | |
1687 | * Note that the caller needs to free the contents of *bookname with free() if | |
1688 | * this function returns successfully. | |
1689 | */ | |
1690 | static int | |
1691 | find_redact_book(libzfs_handle_t *hdl, const char *path, | |
1692 | const uint64_t *redact_snap_guids, int num_redact_snaps, | |
1693 | char **bookname) | |
1694 | { | |
d68a2bfa | 1695 | char errbuf[ERRBUFLEN]; |
30af21b0 PD |
1696 | nvlist_t *bmarks; |
1697 | ||
1698 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1699 | "cannot resume send")); | |
1700 | ||
102eb673 | 1701 | int error = get_bookmarks(path, &bmarks); |
30af21b0 PD |
1702 | if (error != 0) { |
1703 | if (error == ESRCH) { | |
1704 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1705 | "nonexistent redaction bookmark provided")); | |
1706 | } else if (error == ENOENT) { | |
1707 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1708 | "dataset to be sent no longer exists")); | |
1709 | } else { | |
1710 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1711 | "unknown error: %s"), strerror(error)); | |
1712 | } | |
1713 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1714 | } | |
102eb673 RM |
1715 | nvpair_t *pair = find_redact_pair(bmarks, redact_snap_guids, |
1716 | num_redact_snaps); | |
30af21b0 PD |
1717 | if (pair == NULL) { |
1718 | fnvlist_free(bmarks); | |
1719 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1720 | "no appropriate redaction bookmark exists")); | |
1721 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1722 | } | |
102eb673 | 1723 | boolean_t complete = get_redact_complete(pair); |
30af21b0 PD |
1724 | if (!complete) { |
1725 | fnvlist_free(bmarks); | |
1726 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1727 | "incomplete redaction bookmark provided")); | |
1728 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); | |
1729 | } | |
102eb673 | 1730 | *bookname = strndup(nvpair_name(pair), ZFS_MAX_DATASET_NAME_LEN); |
30af21b0 PD |
1731 | ASSERT3P(*bookname, !=, NULL); |
1732 | fnvlist_free(bmarks); | |
1733 | return (0); | |
1734 | } | |
47dfff3b | 1735 | |
d1a38ee7 RM |
1736 | static enum lzc_send_flags |
1737 | lzc_flags_from_resume_nvl(nvlist_t *resume_nvl) | |
1738 | { | |
1739 | enum lzc_send_flags lzc_flags = 0; | |
1740 | ||
1741 | if (nvlist_exists(resume_nvl, "largeblockok")) | |
1742 | lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; | |
1743 | if (nvlist_exists(resume_nvl, "embedok")) | |
1744 | lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; | |
1745 | if (nvlist_exists(resume_nvl, "compressok")) | |
1746 | lzc_flags |= LZC_SEND_FLAG_COMPRESS; | |
1747 | if (nvlist_exists(resume_nvl, "rawok")) | |
1748 | lzc_flags |= LZC_SEND_FLAG_RAW; | |
1749 | if (nvlist_exists(resume_nvl, "savedok")) | |
1750 | lzc_flags |= LZC_SEND_FLAG_SAVED; | |
1751 | ||
1752 | return (lzc_flags); | |
1753 | } | |
1754 | ||
ba0ba69e | 1755 | static int |
3a909fe3 AZ |
1756 | zfs_send_resume_impl_cb_impl(libzfs_handle_t *hdl, sendflags_t *flags, |
1757 | int outfd, nvlist_t *resume_nvl) | |
47dfff3b | 1758 | { |
d68a2bfa | 1759 | char errbuf[ERRBUFLEN]; |
d1807f16 RY |
1760 | const char *toname; |
1761 | const char *fromname = NULL; | |
47dfff3b MA |
1762 | uint64_t resumeobj, resumeoff, toguid, fromguid, bytes; |
1763 | zfs_handle_t *zhp; | |
1764 | int error = 0; | |
eca7b760 | 1765 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
30af21b0 PD |
1766 | FILE *fout = (flags->verbosity > 0 && flags->dryrun) ? stdout : stderr; |
1767 | uint64_t *redact_snap_guids = NULL; | |
1768 | int num_redact_snaps = 0; | |
1769 | char *redact_book = NULL; | |
19d39615 | 1770 | uint64_t size = 0; |
47dfff3b MA |
1771 | |
1772 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1773 | "cannot resume send")); | |
1774 | ||
30af21b0 | 1775 | if (flags->verbosity != 0) { |
aee1dd4d | 1776 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
47dfff3b | 1777 | "resume token contents:\n")); |
aee1dd4d | 1778 | nvlist_print(fout, resume_nvl); |
47dfff3b MA |
1779 | } |
1780 | ||
1781 | if (nvlist_lookup_string(resume_nvl, "toname", &toname) != 0 || | |
1782 | nvlist_lookup_uint64(resume_nvl, "object", &resumeobj) != 0 || | |
1783 | nvlist_lookup_uint64(resume_nvl, "offset", &resumeoff) != 0 || | |
1784 | nvlist_lookup_uint64(resume_nvl, "bytes", &bytes) != 0 || | |
1785 | nvlist_lookup_uint64(resume_nvl, "toguid", &toguid) != 0) { | |
1786 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1787 | "resume token is corrupt")); | |
1788 | return (zfs_error(hdl, EZFS_FAULT, errbuf)); | |
1789 | } | |
1790 | fromguid = 0; | |
1791 | (void) nvlist_lookup_uint64(resume_nvl, "fromguid", &fromguid); | |
1792 | ||
ba0ba69e | 1793 | if (flags->saved) { |
a51288aa | 1794 | (void) strlcpy(name, toname, sizeof (name)); |
ba0ba69e TC |
1795 | } else { |
1796 | error = guid_to_name(hdl, toname, toguid, B_FALSE, name); | |
1797 | if (error != 0) { | |
1798 | if (zfs_dataset_exists(hdl, toname, ZFS_TYPE_DATASET)) { | |
1799 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1800 | "'%s' is no longer the same snapshot " | |
1801 | "used in the initial send"), toname); | |
1802 | } else { | |
1803 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1804 | "'%s' used in the initial send no " | |
1805 | "longer exists"), toname); | |
1806 | } | |
1807 | return (zfs_error(hdl, EZFS_BADPATH, errbuf)); | |
47dfff3b | 1808 | } |
47dfff3b | 1809 | } |
ba0ba69e | 1810 | |
47dfff3b MA |
1811 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); |
1812 | if (zhp == NULL) { | |
1813 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1814 | "unable to access '%s'"), name); | |
1815 | return (zfs_error(hdl, EZFS_BADPATH, errbuf)); | |
1816 | } | |
1817 | ||
30af21b0 PD |
1818 | if (nvlist_lookup_uint64_array(resume_nvl, "book_redact_snaps", |
1819 | &redact_snap_guids, (uint_t *)&num_redact_snaps) != 0) { | |
1820 | num_redact_snaps = -1; | |
1821 | } | |
1822 | ||
47dfff3b | 1823 | if (fromguid != 0) { |
30af21b0 PD |
1824 | if (guid_to_name_redact_snaps(hdl, toname, fromguid, B_TRUE, |
1825 | redact_snap_guids, num_redact_snaps, name) != 0) { | |
47dfff3b MA |
1826 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
1827 | "incremental source %#llx no longer exists"), | |
1828 | (longlong_t)fromguid); | |
1829 | return (zfs_error(hdl, EZFS_BADPATH, errbuf)); | |
1830 | } | |
1831 | fromname = name; | |
1832 | } | |
1833 | ||
30af21b0 PD |
1834 | redact_snap_guids = NULL; |
1835 | ||
1836 | if (nvlist_lookup_uint64_array(resume_nvl, | |
1837 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS), &redact_snap_guids, | |
1838 | (uint_t *)&num_redact_snaps) == 0) { | |
1839 | char path[ZFS_MAX_DATASET_NAME_LEN]; | |
1840 | ||
1841 | (void) strlcpy(path, toname, sizeof (path)); | |
1842 | char *at = strchr(path, '@'); | |
1843 | ASSERT3P(at, !=, NULL); | |
1844 | ||
1845 | *at = '\0'; | |
1846 | ||
1847 | if ((error = find_redact_book(hdl, path, redact_snap_guids, | |
1848 | num_redact_snaps, &redact_book)) != 0) { | |
1849 | return (error); | |
1850 | } | |
1851 | } | |
1852 | ||
d1a38ee7 RM |
1853 | enum lzc_send_flags lzc_flags = lzc_flags_from_sendflags(flags) | |
1854 | lzc_flags_from_resume_nvl(resume_nvl); | |
1855 | ||
19d39615 | 1856 | if (flags->verbosity != 0 || flags->progressastitle) { |
30af21b0 PD |
1857 | /* |
1858 | * Some of these may have come from the resume token, set them | |
1859 | * here for size estimate purposes. | |
1860 | */ | |
1861 | sendflags_t tmpflags = *flags; | |
1862 | if (lzc_flags & LZC_SEND_FLAG_LARGE_BLOCK) | |
1863 | tmpflags.largeblock = B_TRUE; | |
1864 | if (lzc_flags & LZC_SEND_FLAG_COMPRESS) | |
1865 | tmpflags.compress = B_TRUE; | |
1866 | if (lzc_flags & LZC_SEND_FLAG_EMBED_DATA) | |
1867 | tmpflags.embed_data = B_TRUE; | |
8f11b1d2 PD |
1868 | if (lzc_flags & LZC_SEND_FLAG_RAW) |
1869 | tmpflags.raw = B_TRUE; | |
1870 | if (lzc_flags & LZC_SEND_FLAG_SAVED) | |
1871 | tmpflags.saved = B_TRUE; | |
30af21b0 | 1872 | error = estimate_size(zhp, fromname, outfd, &tmpflags, |
19d39615 | 1873 | resumeobj, resumeoff, bytes, redact_book, errbuf, &size); |
47dfff3b MA |
1874 | } |
1875 | ||
1876 | if (!flags->dryrun) { | |
1877 | progress_arg_t pa = { 0 }; | |
1878 | pthread_t tid; | |
1879 | /* | |
1880 | * If progress reporting is requested, spawn a new thread to | |
1881 | * poll ZFS_IOC_SEND_PROGRESS at a regular interval. | |
1882 | */ | |
19d39615 | 1883 | if (flags->progress || flags->progressastitle) { |
47dfff3b MA |
1884 | pa.pa_zhp = zhp; |
1885 | pa.pa_fd = outfd; | |
1886 | pa.pa_parsable = flags->parsable; | |
30af21b0 PD |
1887 | pa.pa_estimate = B_FALSE; |
1888 | pa.pa_verbosity = flags->verbosity; | |
19d39615 AH |
1889 | pa.pa_size = size; |
1890 | pa.pa_astitle = flags->progressastitle; | |
05b72415 | 1891 | pa.pa_progress = flags->progress; |
47dfff3b MA |
1892 | |
1893 | error = pthread_create(&tid, NULL, | |
1894 | send_progress_thread, &pa); | |
1895 | if (error != 0) { | |
30af21b0 PD |
1896 | if (redact_book != NULL) |
1897 | free(redact_book); | |
47dfff3b MA |
1898 | zfs_close(zhp); |
1899 | return (error); | |
1900 | } | |
1901 | } | |
1902 | ||
30af21b0 PD |
1903 | error = lzc_send_resume_redacted(zhp->zfs_name, fromname, outfd, |
1904 | lzc_flags, resumeobj, resumeoff, redact_book); | |
1905 | if (redact_book != NULL) | |
1906 | free(redact_book); | |
47dfff3b | 1907 | |
19d39615 AH |
1908 | if ((flags->progressastitle || flags->progress) && |
1909 | send_progress_thread_exit(hdl, tid)) { | |
1910 | zfs_close(zhp); | |
e3e4c30b | 1911 | return (-1); |
19d39615 | 1912 | } |
47dfff3b | 1913 | |
d68a2bfa | 1914 | char errbuf[ERRBUFLEN]; |
47dfff3b MA |
1915 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
1916 | "warning: cannot send '%s'"), zhp->zfs_name); | |
1917 | ||
1918 | zfs_close(zhp); | |
1919 | ||
1920 | switch (error) { | |
1921 | case 0: | |
1922 | return (0); | |
b5256303 TC |
1923 | case EACCES: |
1924 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1925 | "source key must be loaded")); | |
1926 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
30af21b0 PD |
1927 | case ESRCH: |
1928 | if (lzc_exists(zhp->zfs_name)) { | |
1929 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
1930 | "incremental source could not be found")); | |
1931 | } | |
1932 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
b5256303 | 1933 | |
47dfff3b MA |
1934 | case EXDEV: |
1935 | case ENOENT: | |
1936 | case EDQUOT: | |
1937 | case EFBIG: | |
1938 | case EIO: | |
1939 | case ENOLINK: | |
1940 | case ENOSPC: | |
1941 | case ENOSTR: | |
1942 | case ENXIO: | |
1943 | case EPIPE: | |
1944 | case ERANGE: | |
1945 | case EFAULT: | |
1946 | case EROFS: | |
f00f4690 | 1947 | zfs_error_aux(hdl, "%s", strerror(errno)); |
47dfff3b MA |
1948 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); |
1949 | ||
1950 | default: | |
1951 | return (zfs_standard_error(hdl, errno, errbuf)); | |
1952 | } | |
30af21b0 PD |
1953 | } else { |
1954 | if (redact_book != NULL) | |
1955 | free(redact_book); | |
47dfff3b MA |
1956 | } |
1957 | ||
47dfff3b MA |
1958 | zfs_close(zhp); |
1959 | ||
1960 | return (error); | |
1961 | } | |
1962 | ||
3a909fe3 AZ |
1963 | struct zfs_send_resume_impl { |
1964 | libzfs_handle_t *hdl; | |
1965 | sendflags_t *flags; | |
1966 | nvlist_t *resume_nvl; | |
1967 | }; | |
1968 | ||
1969 | static int | |
1970 | zfs_send_resume_impl_cb(int outfd, void *arg) | |
1971 | { | |
1972 | struct zfs_send_resume_impl *zsri = arg; | |
1973 | return (zfs_send_resume_impl_cb_impl(zsri->hdl, zsri->flags, outfd, | |
1974 | zsri->resume_nvl)); | |
1975 | } | |
1976 | ||
1977 | static int | |
1978 | zfs_send_resume_impl(libzfs_handle_t *hdl, sendflags_t *flags, int outfd, | |
1979 | nvlist_t *resume_nvl) | |
1980 | { | |
1981 | struct zfs_send_resume_impl zsri = { | |
1982 | .hdl = hdl, | |
1983 | .flags = flags, | |
1984 | .resume_nvl = resume_nvl, | |
1985 | }; | |
1986 | return (lzc_send_wrapper(zfs_send_resume_impl_cb, outfd, &zsri)); | |
1987 | } | |
1988 | ||
ba0ba69e TC |
1989 | int |
1990 | zfs_send_resume(libzfs_handle_t *hdl, sendflags_t *flags, int outfd, | |
1991 | const char *resume_token) | |
1992 | { | |
1993 | int ret; | |
d68a2bfa | 1994 | char errbuf[ERRBUFLEN]; |
ba0ba69e TC |
1995 | nvlist_t *resume_nvl; |
1996 | ||
1997 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
1998 | "cannot resume send")); | |
1999 | ||
2000 | resume_nvl = zfs_send_resume_token_to_nvlist(hdl, resume_token); | |
2001 | if (resume_nvl == NULL) { | |
2002 | /* | |
2003 | * zfs_error_aux has already been set by | |
2004 | * zfs_send_resume_token_to_nvlist() | |
2005 | */ | |
2006 | return (zfs_error(hdl, EZFS_FAULT, errbuf)); | |
2007 | } | |
2008 | ||
2009 | ret = zfs_send_resume_impl(hdl, flags, outfd, resume_nvl); | |
60a2434b | 2010 | fnvlist_free(resume_nvl); |
ba0ba69e TC |
2011 | |
2012 | return (ret); | |
2013 | } | |
2014 | ||
2015 | int | |
2016 | zfs_send_saved(zfs_handle_t *zhp, sendflags_t *flags, int outfd, | |
2017 | const char *resume_token) | |
2018 | { | |
2019 | int ret; | |
2020 | libzfs_handle_t *hdl = zhp->zfs_hdl; | |
2021 | nvlist_t *saved_nvl = NULL, *resume_nvl = NULL; | |
2022 | uint64_t saved_guid = 0, resume_guid = 0; | |
2023 | uint64_t obj = 0, off = 0, bytes = 0; | |
2024 | char token_buf[ZFS_MAXPROPLEN]; | |
d68a2bfa | 2025 | char errbuf[ERRBUFLEN]; |
ba0ba69e TC |
2026 | |
2027 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
2028 | "saved send failed")); | |
2029 | ||
2030 | ret = zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, | |
2031 | token_buf, sizeof (token_buf), NULL, NULL, 0, B_TRUE); | |
2032 | if (ret != 0) | |
2033 | goto out; | |
2034 | ||
2035 | saved_nvl = zfs_send_resume_token_to_nvlist(hdl, token_buf); | |
2036 | if (saved_nvl == NULL) { | |
2037 | /* | |
2038 | * zfs_error_aux has already been set by | |
2039 | * zfs_send_resume_token_to_nvlist() | |
2040 | */ | |
2041 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
2042 | goto out; | |
2043 | } | |
2044 | ||
2045 | /* | |
2046 | * If a resume token is provided we use the object and offset | |
2047 | * from that instead of the default, which starts from the | |
2048 | * beginning. | |
2049 | */ | |
2050 | if (resume_token != NULL) { | |
2051 | resume_nvl = zfs_send_resume_token_to_nvlist(hdl, | |
2052 | resume_token); | |
2053 | if (resume_nvl == NULL) { | |
2054 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
2055 | goto out; | |
2056 | } | |
2057 | ||
2058 | if (nvlist_lookup_uint64(resume_nvl, "object", &obj) != 0 || | |
2059 | nvlist_lookup_uint64(resume_nvl, "offset", &off) != 0 || | |
2060 | nvlist_lookup_uint64(resume_nvl, "bytes", &bytes) != 0 || | |
2061 | nvlist_lookup_uint64(resume_nvl, "toguid", | |
2062 | &resume_guid) != 0) { | |
2063 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2064 | "provided resume token is corrupt")); | |
2065 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
2066 | goto out; | |
2067 | } | |
2068 | ||
2069 | if (nvlist_lookup_uint64(saved_nvl, "toguid", | |
2070 | &saved_guid)) { | |
2071 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2072 | "dataset's resume token is corrupt")); | |
2073 | ret = zfs_error(hdl, EZFS_FAULT, errbuf); | |
2074 | goto out; | |
2075 | } | |
2076 | ||
2077 | if (resume_guid != saved_guid) { | |
2078 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2079 | "provided resume token does not match dataset")); | |
2080 | ret = zfs_error(hdl, EZFS_BADBACKUP, errbuf); | |
2081 | goto out; | |
2082 | } | |
2083 | } | |
2084 | ||
2085 | (void) nvlist_remove_all(saved_nvl, "object"); | |
2086 | fnvlist_add_uint64(saved_nvl, "object", obj); | |
2087 | ||
2088 | (void) nvlist_remove_all(saved_nvl, "offset"); | |
2089 | fnvlist_add_uint64(saved_nvl, "offset", off); | |
2090 | ||
2091 | (void) nvlist_remove_all(saved_nvl, "bytes"); | |
2092 | fnvlist_add_uint64(saved_nvl, "bytes", bytes); | |
2093 | ||
2094 | (void) nvlist_remove_all(saved_nvl, "toname"); | |
2095 | fnvlist_add_string(saved_nvl, "toname", zhp->zfs_name); | |
2096 | ||
2097 | ret = zfs_send_resume_impl(hdl, flags, outfd, saved_nvl); | |
2098 | ||
2099 | out: | |
60a2434b RM |
2100 | fnvlist_free(saved_nvl); |
2101 | fnvlist_free(resume_nvl); | |
ba0ba69e TC |
2102 | return (ret); |
2103 | } | |
2104 | ||
34dc7c2f | 2105 | /* |
30af21b0 PD |
2106 | * This function informs the target system that the recursive send is complete. |
2107 | * The record is also expected in the case of a send -p. | |
2108 | */ | |
2109 | static int | |
2110 | send_conclusion_record(int fd, zio_cksum_t *zc) | |
2111 | { | |
2112 | dmu_replay_record_t drr = { 0 }; | |
2113 | drr.drr_type = DRR_END; | |
2114 | if (zc != NULL) | |
2115 | drr.drr_u.drr_end.drr_checksum = *zc; | |
2116 | if (write(fd, &drr, sizeof (drr)) == -1) { | |
2117 | return (errno); | |
2118 | } | |
2119 | return (0); | |
2120 | } | |
2121 | ||
2122 | /* | |
2123 | * This function is responsible for sending the records that contain the | |
2124 | * necessary information for the target system's libzfs to be able to set the | |
2125 | * properties of the filesystem being received, or to be able to prepare for | |
2126 | * a recursive receive. | |
2127 | * | |
2128 | * The "zhp" argument is the handle of the snapshot we are sending | |
2129 | * (the "tosnap"). The "from" argument is the short snapshot name (the part | |
2130 | * after the @) of the incremental source. | |
2131 | */ | |
2132 | static int | |
2133 | send_prelim_records(zfs_handle_t *zhp, const char *from, int fd, | |
2134 | boolean_t gather_props, boolean_t recursive, boolean_t verbose, | |
099fa7e4 PCG |
2135 | boolean_t dryrun, boolean_t raw, boolean_t replicate, boolean_t skipmissing, |
2136 | boolean_t backup, boolean_t holds, boolean_t props, boolean_t doall, | |
30af21b0 PD |
2137 | nvlist_t **fssp, avl_tree_t **fsavlp) |
2138 | { | |
2139 | int err = 0; | |
2140 | char *packbuf = NULL; | |
2141 | size_t buflen = 0; | |
2142 | zio_cksum_t zc = { {0} }; | |
2143 | int featureflags = 0; | |
2144 | /* name of filesystem/volume that contains snapshot we are sending */ | |
2145 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; | |
2146 | /* short name of snap we are sending */ | |
a926aab9 | 2147 | const char *tosnap = ""; |
30af21b0 | 2148 | |
d68a2bfa | 2149 | char errbuf[ERRBUFLEN]; |
30af21b0 PD |
2150 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
2151 | "warning: cannot send '%s'"), zhp->zfs_name); | |
2152 | if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM && zfs_prop_get_int(zhp, | |
2153 | ZFS_PROP_VERSION) >= ZPL_VERSION_SA) { | |
2154 | featureflags |= DMU_BACKUP_FEATURE_SA_SPILL; | |
2155 | } | |
2156 | ||
2157 | if (holds) | |
2158 | featureflags |= DMU_BACKUP_FEATURE_HOLDS; | |
2159 | ||
2160 | (void) strlcpy(tofs, zhp->zfs_name, ZFS_MAX_DATASET_NAME_LEN); | |
2161 | char *at = strchr(tofs, '@'); | |
2162 | if (at != NULL) { | |
2163 | *at = '\0'; | |
2164 | tosnap = at + 1; | |
2165 | } | |
2166 | ||
2167 | if (gather_props) { | |
2168 | nvlist_t *hdrnv = fnvlist_alloc(); | |
2169 | nvlist_t *fss = NULL; | |
2170 | ||
2171 | if (from != NULL) | |
2172 | fnvlist_add_string(hdrnv, "fromsnap", from); | |
2173 | fnvlist_add_string(hdrnv, "tosnap", tosnap); | |
2174 | if (!recursive) | |
2175 | fnvlist_add_boolean(hdrnv, "not_recursive"); | |
2176 | ||
2177 | if (raw) { | |
60a2434b | 2178 | fnvlist_add_boolean(hdrnv, "raw"); |
30af21b0 PD |
2179 | } |
2180 | ||
6a42939f | 2181 | if (gather_nvlist(zhp->zfs_hdl, tofs, |
099fa7e4 | 2182 | from, tosnap, recursive, raw, doall, replicate, skipmissing, |
6a42939f | 2183 | verbose, backup, holds, props, &fss, fsavlp) != 0) { |
30af21b0 PD |
2184 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, |
2185 | errbuf)); | |
2186 | } | |
7a6c12fd AJ |
2187 | /* |
2188 | * Do not allow the size of the properties list to exceed | |
2189 | * the limit | |
2190 | */ | |
2191 | if ((fnvlist_size(fss) + fnvlist_size(hdrnv)) > | |
2192 | zhp->zfs_hdl->libzfs_max_nvlist) { | |
2193 | (void) snprintf(errbuf, sizeof (errbuf), | |
2194 | dgettext(TEXT_DOMAIN, "warning: cannot send '%s': " | |
2195 | "the size of the list of snapshots and properties " | |
2196 | "is too large to be received successfully.\n" | |
2197 | "Select a smaller number of snapshots to send.\n"), | |
2198 | zhp->zfs_name); | |
2199 | return (zfs_error(zhp->zfs_hdl, EZFS_NOSPC, | |
2200 | errbuf)); | |
2201 | } | |
30af21b0 PD |
2202 | fnvlist_add_nvlist(hdrnv, "fss", fss); |
2203 | VERIFY0(nvlist_pack(hdrnv, &packbuf, &buflen, NV_ENCODE_XDR, | |
2204 | 0)); | |
2205 | if (fssp != NULL) { | |
2206 | *fssp = fss; | |
2207 | } else { | |
60a2434b | 2208 | fnvlist_free(fss); |
30af21b0 | 2209 | } |
60a2434b | 2210 | fnvlist_free(hdrnv); |
30af21b0 PD |
2211 | } |
2212 | ||
2213 | if (!dryrun) { | |
2214 | dmu_replay_record_t drr = { 0 }; | |
2215 | /* write first begin record */ | |
2216 | drr.drr_type = DRR_BEGIN; | |
2217 | drr.drr_u.drr_begin.drr_magic = DMU_BACKUP_MAGIC; | |
2218 | DMU_SET_STREAM_HDRTYPE(drr.drr_u.drr_begin. | |
2219 | drr_versioninfo, DMU_COMPOUNDSTREAM); | |
2220 | DMU_SET_FEATUREFLAGS(drr.drr_u.drr_begin. | |
2221 | drr_versioninfo, featureflags); | |
2222 | if (snprintf(drr.drr_u.drr_begin.drr_toname, | |
2223 | sizeof (drr.drr_u.drr_begin.drr_toname), "%s@%s", tofs, | |
2224 | tosnap) >= sizeof (drr.drr_u.drr_begin.drr_toname)) { | |
2225 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, | |
2226 | errbuf)); | |
2227 | } | |
2228 | drr.drr_payloadlen = buflen; | |
2229 | ||
2230 | err = dump_record(&drr, packbuf, buflen, &zc, fd); | |
2231 | free(packbuf); | |
2232 | if (err != 0) { | |
f00f4690 | 2233 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err)); |
30af21b0 PD |
2234 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, |
2235 | errbuf)); | |
2236 | } | |
2237 | err = send_conclusion_record(fd, &zc); | |
2238 | if (err != 0) { | |
f00f4690 | 2239 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(err)); |
30af21b0 PD |
2240 | return (zfs_error(zhp->zfs_hdl, EZFS_BADBACKUP, |
2241 | errbuf)); | |
2242 | } | |
2243 | } | |
2244 | return (0); | |
2245 | } | |
2246 | ||
2247 | /* | |
2248 | * Generate a send stream. The "zhp" argument is the filesystem/volume | |
2249 | * that contains the snapshot to send. The "fromsnap" argument is the | |
2250 | * short name (the part after the '@') of the snapshot that is the | |
2251 | * incremental source to send from (if non-NULL). The "tosnap" argument | |
2252 | * is the short name of the snapshot to send. | |
45d1cae3 BB |
2253 | * |
2254 | * The content of the send stream is the snapshot identified by | |
2255 | * 'tosnap'. Incremental streams are requested in two ways: | |
2256 | * - from the snapshot identified by "fromsnap" (if non-null) or | |
2257 | * - from the origin of the dataset identified by zhp, which must | |
2258 | * be a clone. In this case, "fromsnap" is null and "fromorigin" | |
2259 | * is TRUE. | |
2260 | * | |
2261 | * The send stream is recursive (i.e. dumps a hierarchy of snapshots) and | |
428870ff | 2262 | * uses a special header (with a hdrtype field of DMU_COMPOUNDSTREAM) |
45d1cae3 | 2263 | * if "replicate" is set. If "doall" is set, dump all the intermediate |
428870ff BB |
2264 | * snapshots. The DMU_COMPOUNDSTREAM header is used in the "doall" |
2265 | * case too. If "props" is set, send properties. | |
3a909fe3 AZ |
2266 | * |
2267 | * Pre-wrapped (cf. lzc_send_wrapper()). | |
34dc7c2f | 2268 | */ |
3a909fe3 AZ |
2269 | static int |
2270 | zfs_send_cb_impl(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, | |
330d06f9 | 2271 | sendflags_t *flags, int outfd, snapfilter_cb_t filter_func, |
428870ff | 2272 | void *cb_arg, nvlist_t **debugnvp) |
34dc7c2f | 2273 | { |
d68a2bfa | 2274 | char errbuf[ERRBUFLEN]; |
34dc7c2f | 2275 | send_dump_data_t sdd = { 0 }; |
330d06f9 | 2276 | int err = 0; |
34dc7c2f BB |
2277 | nvlist_t *fss = NULL; |
2278 | avl_tree_t *fsavl = NULL; | |
428870ff BB |
2279 | static uint64_t holdseq; |
2280 | int spa_version; | |
93f6d7e2 | 2281 | FILE *fout; |
428870ff | 2282 | |
34dc7c2f BB |
2283 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
2284 | "cannot send '%s'"), zhp->zfs_name); | |
2285 | ||
2286 | if (fromsnap && fromsnap[0] == '\0') { | |
2287 | zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN, | |
2288 | "zero-length incremental source")); | |
2289 | return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf)); | |
2290 | } | |
2291 | ||
aad91df0 RE |
2292 | if (fromsnap) { |
2293 | char full_fromsnap_name[ZFS_MAX_DATASET_NAME_LEN]; | |
2294 | if (snprintf(full_fromsnap_name, sizeof (full_fromsnap_name), | |
2295 | "%s@%s", zhp->zfs_name, fromsnap) >= | |
2296 | sizeof (full_fromsnap_name)) { | |
2297 | err = EINVAL; | |
2298 | goto stderr_out; | |
2299 | } | |
2300 | zfs_handle_t *fromsnapn = zfs_open(zhp->zfs_hdl, | |
2301 | full_fromsnap_name, ZFS_TYPE_SNAPSHOT); | |
2302 | if (fromsnapn == NULL) { | |
2303 | err = -1; | |
2304 | goto err_out; | |
2305 | } | |
2306 | zfs_close(fromsnapn); | |
2307 | } | |
2308 | ||
9c5e88b1 PZ |
2309 | if (flags->replicate || flags->doall || flags->props || |
2310 | flags->holds || flags->backup) { | |
30af21b0 PD |
2311 | char full_tosnap_name[ZFS_MAX_DATASET_NAME_LEN]; |
2312 | if (snprintf(full_tosnap_name, sizeof (full_tosnap_name), | |
2313 | "%s@%s", zhp->zfs_name, tosnap) >= | |
2314 | sizeof (full_tosnap_name)) { | |
2315 | err = EINVAL; | |
2316 | goto stderr_out; | |
34dc7c2f | 2317 | } |
30af21b0 PD |
2318 | zfs_handle_t *tosnap = zfs_open(zhp->zfs_hdl, |
2319 | full_tosnap_name, ZFS_TYPE_SNAPSHOT); | |
1d20b763 | 2320 | if (tosnap == NULL) { |
2321 | err = -1; | |
2322 | goto err_out; | |
2323 | } | |
30af21b0 PD |
2324 | err = send_prelim_records(tosnap, fromsnap, outfd, |
2325 | flags->replicate || flags->props || flags->holds, | |
2326 | flags->replicate, flags->verbosity > 0, flags->dryrun, | |
099fa7e4 PCG |
2327 | flags->raw, flags->replicate, flags->skipmissing, |
2328 | flags->backup, flags->holds, flags->props, flags->doall, | |
2329 | &fss, &fsavl); | |
30af21b0 PD |
2330 | zfs_close(tosnap); |
2331 | if (err != 0) | |
2332 | goto err_out; | |
34dc7c2f BB |
2333 | } |
2334 | ||
2335 | /* dump each stream */ | |
2336 | sdd.fromsnap = fromsnap; | |
2337 | sdd.tosnap = tosnap; | |
36482bf6 | 2338 | sdd.outfd = outfd; |
330d06f9 MA |
2339 | sdd.replicate = flags->replicate; |
2340 | sdd.doall = flags->doall; | |
2341 | sdd.fromorigin = flags->fromorigin; | |
34dc7c2f BB |
2342 | sdd.fss = fss; |
2343 | sdd.fsavl = fsavl; | |
30af21b0 | 2344 | sdd.verbosity = flags->verbosity; |
330d06f9 | 2345 | sdd.parsable = flags->parsable; |
37abac6d | 2346 | sdd.progress = flags->progress; |
19d39615 | 2347 | sdd.progressastitle = flags->progressastitle; |
330d06f9 | 2348 | sdd.dryrun = flags->dryrun; |
f1512ee6 | 2349 | sdd.large_block = flags->largeblock; |
9b67f605 | 2350 | sdd.embed_data = flags->embed_data; |
2aa34383 | 2351 | sdd.compress = flags->compress; |
b5256303 | 2352 | sdd.raw = flags->raw; |
9c5e88b1 | 2353 | sdd.holds = flags->holds; |
428870ff BB |
2354 | sdd.filter_cb = filter_func; |
2355 | sdd.filter_cb_arg = cb_arg; | |
2356 | if (debugnvp) | |
2357 | sdd.debugnv = *debugnvp; | |
30af21b0 | 2358 | if (sdd.verbosity != 0 && sdd.dryrun) |
93f6d7e2 MJ |
2359 | sdd.std_out = B_TRUE; |
2360 | fout = sdd.std_out ? stdout : stderr; | |
e956d651 CS |
2361 | |
2362 | /* | |
2363 | * Some flags require that we place user holds on the datasets that are | |
2364 | * being sent so they don't get destroyed during the send. We can skip | |
2365 | * this step if the pool is imported read-only since the datasets cannot | |
2366 | * be destroyed. | |
2367 | */ | |
2368 | if (!flags->dryrun && !zpool_get_prop_int(zfs_get_pool_handle(zhp), | |
2369 | ZPOOL_PROP_READONLY, NULL) && | |
2370 | zfs_spa_version(zhp, &spa_version) == 0 && | |
2371 | spa_version >= SPA_VERSION_USERREFS && | |
2372 | (flags->doall || flags->replicate)) { | |
572e2857 BB |
2373 | ++holdseq; |
2374 | (void) snprintf(sdd.holdtag, sizeof (sdd.holdtag), | |
2375 | ".send-%d-%llu", getpid(), (u_longlong_t)holdseq); | |
10b575d0 | 2376 | sdd.cleanup_fd = open(ZFS_DEV, O_RDWR | O_CLOEXEC); |
572e2857 BB |
2377 | if (sdd.cleanup_fd < 0) { |
2378 | err = errno; | |
2379 | goto stderr_out; | |
2380 | } | |
95fd54a1 | 2381 | sdd.snapholds = fnvlist_alloc(); |
572e2857 BB |
2382 | } else { |
2383 | sdd.cleanup_fd = -1; | |
95fd54a1 | 2384 | sdd.snapholds = NULL; |
572e2857 | 2385 | } |
9c5e88b1 | 2386 | |
30af21b0 | 2387 | if (flags->verbosity != 0 || sdd.snapholds != NULL) { |
330d06f9 MA |
2388 | /* |
2389 | * Do a verbose no-op dry run to get all the verbose output | |
95fd54a1 SH |
2390 | * or to gather snapshot hold's before generating any data, |
2391 | * then do a non-verbose real run to generate the streams. | |
330d06f9 MA |
2392 | */ |
2393 | sdd.dryrun = B_TRUE; | |
2394 | err = dump_filesystems(zhp, &sdd); | |
95fd54a1 SH |
2395 | |
2396 | if (err != 0) | |
2397 | goto stderr_out; | |
2398 | ||
30af21b0 | 2399 | if (flags->verbosity != 0) { |
95fd54a1 | 2400 | if (flags->parsable) { |
93f6d7e2 | 2401 | (void) fprintf(fout, "size\t%llu\n", |
95fd54a1 SH |
2402 | (longlong_t)sdd.size); |
2403 | } else { | |
2404 | char buf[16]; | |
e7fbeb60 | 2405 | zfs_nicebytes(sdd.size, buf, sizeof (buf)); |
93f6d7e2 | 2406 | (void) fprintf(fout, dgettext(TEXT_DOMAIN, |
95fd54a1 SH |
2407 | "total estimated size is %s\n"), buf); |
2408 | } | |
330d06f9 | 2409 | } |
95fd54a1 SH |
2410 | |
2411 | /* Ensure no snaps found is treated as an error. */ | |
2412 | if (!sdd.seento) { | |
2413 | err = ENOENT; | |
2414 | goto err_out; | |
2415 | } | |
2416 | ||
2417 | /* Skip the second run if dryrun was requested. */ | |
2418 | if (flags->dryrun) | |
2419 | goto err_out; | |
2420 | ||
2421 | if (sdd.snapholds != NULL) { | |
2422 | err = zfs_hold_nvl(zhp, sdd.cleanup_fd, sdd.snapholds); | |
2423 | if (err != 0) | |
2424 | goto stderr_out; | |
2425 | ||
2426 | fnvlist_free(sdd.snapholds); | |
2427 | sdd.snapholds = NULL; | |
2428 | } | |
2429 | ||
2430 | sdd.dryrun = B_FALSE; | |
30af21b0 | 2431 | sdd.verbosity = 0; |
330d06f9 | 2432 | } |
95fd54a1 | 2433 | |
34dc7c2f BB |
2434 | err = dump_filesystems(zhp, &sdd); |
2435 | fsavl_destroy(fsavl); | |
60a2434b | 2436 | fnvlist_free(fss); |
34dc7c2f | 2437 | |
95fd54a1 SH |
2438 | /* Ensure no snaps found is treated as an error. */ |
2439 | if (err == 0 && !sdd.seento) | |
2440 | err = ENOENT; | |
2441 | ||
572e2857 BB |
2442 | if (sdd.cleanup_fd != -1) { |
2443 | VERIFY(0 == close(sdd.cleanup_fd)); | |
2444 | sdd.cleanup_fd = -1; | |
2445 | } | |
2446 | ||
330d06f9 | 2447 | if (!flags->dryrun && (flags->replicate || flags->doall || |
9c5e88b1 | 2448 | flags->props || flags->backup || flags->holds)) { |
34dc7c2f BB |
2449 | /* |
2450 | * write final end record. NB: want to do this even if | |
2451 | * there was some error, because it might not be totally | |
2452 | * failed. | |
2453 | */ | |
10891b37 AH |
2454 | int err2 = send_conclusion_record(outfd, NULL); |
2455 | if (err2 != 0) | |
2456 | return (zfs_standard_error(zhp->zfs_hdl, err2, errbuf)); | |
34dc7c2f BB |
2457 | } |
2458 | ||
2459 | return (err || sdd.err); | |
428870ff BB |
2460 | |
2461 | stderr_out: | |
2462 | err = zfs_standard_error(zhp->zfs_hdl, err, errbuf); | |
2463 | err_out: | |
95fd54a1 | 2464 | fsavl_destroy(fsavl); |
60a2434b | 2465 | fnvlist_free(fss); |
95fd54a1 SH |
2466 | fnvlist_free(sdd.snapholds); |
2467 | ||
572e2857 BB |
2468 | if (sdd.cleanup_fd != -1) |
2469 | VERIFY(0 == close(sdd.cleanup_fd)); | |
428870ff | 2470 | return (err); |
34dc7c2f BB |
2471 | } |
2472 | ||
3a909fe3 AZ |
2473 | struct zfs_send { |
2474 | zfs_handle_t *zhp; | |
2475 | const char *fromsnap; | |
2476 | const char *tosnap; | |
2477 | sendflags_t *flags; | |
2478 | snapfilter_cb_t *filter_func; | |
2479 | void *cb_arg; | |
2480 | nvlist_t **debugnvp; | |
2481 | }; | |
2482 | ||
2483 | static int | |
2484 | zfs_send_cb(int outfd, void *arg) | |
2485 | { | |
2486 | struct zfs_send *zs = arg; | |
2487 | return (zfs_send_cb_impl(zs->zhp, zs->fromsnap, zs->tosnap, zs->flags, | |
2488 | outfd, zs->filter_func, zs->cb_arg, zs->debugnvp)); | |
2489 | } | |
2490 | ||
2491 | int | |
2492 | zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, | |
2493 | sendflags_t *flags, int outfd, snapfilter_cb_t filter_func, | |
2494 | void *cb_arg, nvlist_t **debugnvp) | |
2495 | { | |
2496 | struct zfs_send arg = { | |
2497 | .zhp = zhp, | |
2498 | .fromsnap = fromsnap, | |
2499 | .tosnap = tosnap, | |
2500 | .flags = flags, | |
2501 | .filter_func = filter_func, | |
2502 | .cb_arg = cb_arg, | |
2503 | .debugnvp = debugnvp, | |
2504 | }; | |
2505 | return (lzc_send_wrapper(zfs_send_cb, outfd, &arg)); | |
2506 | } | |
2507 | ||
2508 | ||
65c7cc49 | 2509 | static zfs_handle_t * |
30af21b0 PD |
2510 | name_to_dir_handle(libzfs_handle_t *hdl, const char *snapname) |
2511 | { | |
2512 | char dirname[ZFS_MAX_DATASET_NAME_LEN]; | |
2513 | (void) strlcpy(dirname, snapname, ZFS_MAX_DATASET_NAME_LEN); | |
2514 | char *c = strchr(dirname, '@'); | |
2515 | if (c != NULL) | |
2516 | *c = '\0'; | |
2517 | return (zfs_open(hdl, dirname, ZFS_TYPE_DATASET)); | |
2518 | } | |
2519 | ||
2520 | /* | |
2521 | * Returns B_TRUE if earlier is an earlier snapshot in later's timeline; either | |
2522 | * an earlier snapshot in the same filesystem, or a snapshot before later's | |
2523 | * origin, or it's origin's origin, etc. | |
2524 | */ | |
2525 | static boolean_t | |
2526 | snapshot_is_before(zfs_handle_t *earlier, zfs_handle_t *later) | |
2527 | { | |
2528 | boolean_t ret; | |
2529 | uint64_t later_txg = | |
2530 | (later->zfs_type == ZFS_TYPE_FILESYSTEM || | |
2531 | later->zfs_type == ZFS_TYPE_VOLUME ? | |
2532 | UINT64_MAX : zfs_prop_get_int(later, ZFS_PROP_CREATETXG)); | |
2533 | uint64_t earlier_txg = zfs_prop_get_int(earlier, ZFS_PROP_CREATETXG); | |
2534 | ||
2535 | if (earlier_txg >= later_txg) | |
2536 | return (B_FALSE); | |
2537 | ||
2538 | zfs_handle_t *earlier_dir = name_to_dir_handle(earlier->zfs_hdl, | |
2539 | earlier->zfs_name); | |
2540 | zfs_handle_t *later_dir = name_to_dir_handle(later->zfs_hdl, | |
2541 | later->zfs_name); | |
2542 | ||
2543 | if (strcmp(earlier_dir->zfs_name, later_dir->zfs_name) == 0) { | |
2544 | zfs_close(earlier_dir); | |
2545 | zfs_close(later_dir); | |
2546 | return (B_TRUE); | |
2547 | } | |
2548 | ||
2549 | char clonename[ZFS_MAX_DATASET_NAME_LEN]; | |
2550 | if (zfs_prop_get(later_dir, ZFS_PROP_ORIGIN, clonename, | |
2551 | ZFS_MAX_DATASET_NAME_LEN, NULL, NULL, 0, B_TRUE) != 0) { | |
2552 | zfs_close(earlier_dir); | |
2553 | zfs_close(later_dir); | |
2554 | return (B_FALSE); | |
2555 | } | |
2556 | ||
2557 | zfs_handle_t *origin = zfs_open(earlier->zfs_hdl, clonename, | |
2558 | ZFS_TYPE_DATASET); | |
2559 | uint64_t origin_txg = zfs_prop_get_int(origin, ZFS_PROP_CREATETXG); | |
2560 | ||
2561 | /* | |
2562 | * If "earlier" is exactly the origin, then | |
2563 | * snapshot_is_before(earlier, origin) will return false (because | |
2564 | * they're the same). | |
2565 | */ | |
2566 | if (origin_txg == earlier_txg && | |
2567 | strcmp(origin->zfs_name, earlier->zfs_name) == 0) { | |
2568 | zfs_close(earlier_dir); | |
2569 | zfs_close(later_dir); | |
2570 | zfs_close(origin); | |
2571 | return (B_TRUE); | |
2572 | } | |
2573 | zfs_close(earlier_dir); | |
2574 | zfs_close(later_dir); | |
2575 | ||
2576 | ret = snapshot_is_before(earlier, origin); | |
2577 | zfs_close(origin); | |
2578 | return (ret); | |
2579 | } | |
2580 | ||
2581 | /* | |
2582 | * The "zhp" argument is the handle of the dataset to send (typically a | |
2583 | * snapshot). The "from" argument is the full name of the snapshot or | |
2584 | * bookmark that is the incremental source. | |
3a909fe3 AZ |
2585 | * |
2586 | * Pre-wrapped (cf. lzc_send_wrapper()). | |
30af21b0 | 2587 | */ |
3a909fe3 AZ |
2588 | static int |
2589 | zfs_send_one_cb_impl(zfs_handle_t *zhp, const char *from, int fd, | |
2590 | sendflags_t *flags, const char *redactbook) | |
da536844 | 2591 | { |
30af21b0 | 2592 | int err; |
da536844 | 2593 | libzfs_handle_t *hdl = zhp->zfs_hdl; |
22df2457 | 2594 | char *name = zhp->zfs_name; |
196bee4c | 2595 | pthread_t ptid; |
30af21b0 | 2596 | progress_arg_t pa = { 0 }; |
19d39615 | 2597 | uint64_t size = 0; |
30af21b0 | 2598 | |
d68a2bfa | 2599 | char errbuf[ERRBUFLEN]; |
30af21b0 | 2600 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, |
22df2457 | 2601 | "warning: cannot send '%s'"), name); |
835db585 | 2602 | |
30af21b0 PD |
2603 | if (from != NULL && strchr(from, '@')) { |
2604 | zfs_handle_t *from_zhp = zfs_open(hdl, from, | |
2605 | ZFS_TYPE_DATASET); | |
1d20b763 | 2606 | if (from_zhp == NULL) |
2607 | return (-1); | |
30af21b0 PD |
2608 | if (!snapshot_is_before(from_zhp, zhp)) { |
2609 | zfs_close(from_zhp); | |
2610 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2611 | "not an earlier snapshot from the same fs")); | |
2612 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
2613 | } | |
2614 | zfs_close(from_zhp); | |
2615 | } | |
835db585 | 2616 | |
22df2457 RM |
2617 | if (redactbook != NULL) { |
2618 | char bookname[ZFS_MAX_DATASET_NAME_LEN]; | |
2619 | nvlist_t *redact_snaps; | |
2620 | zfs_handle_t *book_zhp; | |
2621 | char *at, *pound; | |
2622 | int dsnamelen; | |
2623 | ||
2624 | pound = strchr(redactbook, '#'); | |
2625 | if (pound != NULL) | |
2626 | redactbook = pound + 1; | |
2627 | at = strchr(name, '@'); | |
2628 | if (at == NULL) { | |
2629 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2630 | "cannot do a redacted send to a filesystem")); | |
2631 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
2632 | } | |
2633 | dsnamelen = at - name; | |
2634 | if (snprintf(bookname, sizeof (bookname), "%.*s#%s", | |
2635 | dsnamelen, name, redactbook) | |
2636 | >= sizeof (bookname)) { | |
2637 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2638 | "invalid bookmark name")); | |
2639 | return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); | |
2640 | } | |
2641 | book_zhp = zfs_open(hdl, bookname, ZFS_TYPE_BOOKMARK); | |
2642 | if (book_zhp == NULL) | |
2643 | return (-1); | |
2644 | if (nvlist_lookup_nvlist(book_zhp->zfs_props, | |
2645 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS), | |
2646 | &redact_snaps) != 0 || redact_snaps == NULL) { | |
2647 | zfs_close(book_zhp); | |
2648 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2649 | "not a redaction bookmark")); | |
2650 | return (zfs_error(hdl, EZFS_BADTYPE, errbuf)); | |
2651 | } | |
2652 | zfs_close(book_zhp); | |
2653 | } | |
2654 | ||
30af21b0 PD |
2655 | /* |
2656 | * Send fs properties | |
2657 | */ | |
2658 | if (flags->props || flags->holds || flags->backup) { | |
2659 | /* | |
2660 | * Note: the header generated by send_prelim_records() | |
2661 | * assumes that the incremental source is in the same | |
2662 | * filesystem/volume as the target (which is a requirement | |
2663 | * when doing "zfs send -R"). But that isn't always the | |
2664 | * case here (e.g. send from snap in origin, or send from | |
2665 | * bookmark). We pass from=NULL, which will omit this | |
2666 | * information from the prelim records; it isn't used | |
2667 | * when receiving this type of stream. | |
2668 | */ | |
2669 | err = send_prelim_records(zhp, NULL, fd, B_TRUE, B_FALSE, | |
2670 | flags->verbosity > 0, flags->dryrun, flags->raw, | |
099fa7e4 | 2671 | flags->replicate, B_FALSE, flags->backup, flags->holds, |
30af21b0 PD |
2672 | flags->props, flags->doall, NULL, NULL); |
2673 | if (err != 0) | |
2674 | return (err); | |
2675 | } | |
2676 | ||
2677 | /* | |
2678 | * Perform size estimate if verbose was specified. | |
2679 | */ | |
19d39615 | 2680 | if (flags->verbosity != 0 || flags->progressastitle) { |
30af21b0 | 2681 | err = estimate_size(zhp, from, fd, flags, 0, 0, 0, redactbook, |
19d39615 | 2682 | errbuf, &size); |
30af21b0 PD |
2683 | if (err != 0) |
2684 | return (err); | |
2685 | } | |
2686 | ||
2687 | if (flags->dryrun) | |
2688 | return (0); | |
2689 | ||
30af21b0 PD |
2690 | /* |
2691 | * If progress reporting is requested, spawn a new thread to poll | |
2692 | * ZFS_IOC_SEND_PROGRESS at a regular interval. | |
2693 | */ | |
19d39615 | 2694 | if (flags->progress || flags->progressastitle) { |
30af21b0 PD |
2695 | pa.pa_zhp = zhp; |
2696 | pa.pa_fd = fd; | |
2697 | pa.pa_parsable = flags->parsable; | |
2698 | pa.pa_estimate = B_FALSE; | |
2699 | pa.pa_verbosity = flags->verbosity; | |
19d39615 AH |
2700 | pa.pa_size = size; |
2701 | pa.pa_astitle = flags->progressastitle; | |
05b72415 | 2702 | pa.pa_progress = flags->progress; |
30af21b0 PD |
2703 | |
2704 | err = pthread_create(&ptid, NULL, | |
2705 | send_progress_thread, &pa); | |
2706 | if (err != 0) { | |
f00f4690 | 2707 | zfs_error_aux(zhp->zfs_hdl, "%s", strerror(errno)); |
30af21b0 PD |
2708 | return (zfs_error(zhp->zfs_hdl, |
2709 | EZFS_THREADCREATEFAILED, errbuf)); | |
835db585 | 2710 | } |
2711 | } | |
2712 | ||
22df2457 | 2713 | err = lzc_send_redacted(name, from, fd, |
30af21b0 | 2714 | lzc_flags_from_sendflags(flags), redactbook); |
835db585 | 2715 | |
19d39615 AH |
2716 | if ((flags->progress || flags->progressastitle) && |
2717 | send_progress_thread_exit(hdl, ptid)) | |
e3e4c30b | 2718 | return (-1); |
da536844 | 2719 | |
8623bd96 | 2720 | if (err == 0 && (flags->props || flags->holds || flags->backup)) { |
30af21b0 | 2721 | /* Write the final end record. */ |
c14ad80f | 2722 | err = send_conclusion_record(fd, NULL); |
30af21b0 PD |
2723 | if (err != 0) |
2724 | return (zfs_standard_error(hdl, err, errbuf)); | |
2725 | } | |
da536844 MA |
2726 | if (err != 0) { |
2727 | switch (errno) { | |
2728 | case EXDEV: | |
2729 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2730 | "not an earlier snapshot from the same fs")); | |
2731 | return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf)); | |
2732 | ||
2733 | case ENOENT: | |
2734 | case ESRCH: | |
22df2457 | 2735 | if (lzc_exists(name)) { |
da536844 MA |
2736 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
2737 | "incremental source (%s) does not exist"), | |
2738 | from); | |
2739 | } | |
2740 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
2741 | ||
b5256303 TC |
2742 | case EACCES: |
2743 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2744 | "dataset key must be loaded")); | |
2745 | return (zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf)); | |
2746 | ||
da536844 MA |
2747 | case EBUSY: |
2748 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2749 | "target is busy; if a filesystem, " | |
2750 | "it must not be mounted")); | |
2751 | return (zfs_error(hdl, EZFS_BUSY, errbuf)); | |
2752 | ||
2753 | case EDQUOT: | |
22df2457 | 2754 | case EFAULT: |
da536844 | 2755 | case EFBIG: |
22df2457 | 2756 | case EINVAL: |
da536844 MA |
2757 | case EIO: |
2758 | case ENOLINK: | |
2759 | case ENOSPC: | |
2760 | case ENOSTR: | |
2761 | case ENXIO: | |
2762 | case EPIPE: | |
2763 | case ERANGE: | |
da536844 | 2764 | case EROFS: |
f00f4690 | 2765 | zfs_error_aux(hdl, "%s", strerror(errno)); |
da536844 MA |
2766 | return (zfs_error(hdl, EZFS_BADBACKUP, errbuf)); |
2767 | ||
2768 | default: | |
2769 | return (zfs_standard_error(hdl, errno, errbuf)); | |
2770 | } | |
2771 | } | |
2772 | return (err != 0); | |
2773 | } | |
2774 | ||
3a909fe3 AZ |
2775 | struct zfs_send_one { |
2776 | zfs_handle_t *zhp; | |
2777 | const char *from; | |
2778 | sendflags_t *flags; | |
2779 | const char *redactbook; | |
2780 | }; | |
2781 | ||
2782 | static int | |
2783 | zfs_send_one_cb(int fd, void *arg) | |
2784 | { | |
2785 | struct zfs_send_one *zso = arg; | |
2786 | return (zfs_send_one_cb_impl(zso->zhp, zso->from, fd, zso->flags, | |
2787 | zso->redactbook)); | |
2788 | } | |
2789 | ||
2790 | int | |
2791 | zfs_send_one(zfs_handle_t *zhp, const char *from, int fd, sendflags_t *flags, | |
2792 | const char *redactbook) | |
2793 | { | |
2794 | struct zfs_send_one zso = { | |
2795 | .zhp = zhp, | |
2796 | .from = from, | |
2797 | .flags = flags, | |
2798 | .redactbook = redactbook, | |
2799 | }; | |
2800 | return (lzc_send_wrapper(zfs_send_one_cb, fd, &zso)); | |
2801 | } | |
2802 | ||
34dc7c2f BB |
2803 | /* |
2804 | * Routines specific to "zfs recv" | |
2805 | */ | |
2806 | ||
2807 | static int | |
2808 | recv_read(libzfs_handle_t *hdl, int fd, void *buf, int ilen, | |
2809 | boolean_t byteswap, zio_cksum_t *zc) | |
2810 | { | |
2811 | char *cp = buf; | |
2812 | int rv; | |
2813 | int len = ilen; | |
2814 | ||
2815 | do { | |
2816 | rv = read(fd, cp, len); | |
2817 | cp += rv; | |
2818 | len -= rv; | |
2819 | } while (rv > 0); | |
2820 | ||
2821 | if (rv < 0 || len != 0) { | |
2822 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
2823 | "failed to read from stream")); | |
2824 | return (zfs_error(hdl, EZFS_BADSTREAM, dgettext(TEXT_DOMAIN, | |
2825 | "cannot receive"))); | |
2826 | } | |
2827 | ||
2828 | if (zc) { | |
2829 | if (byteswap) | |
2830 | fletcher_4_incremental_byteswap(buf, ilen, zc); | |
2831 | else | |
2832 | fletcher_4_incremental_native(buf, ilen, zc); | |
2833 | } | |
2834 | return (0); | |
2835 | } | |
2836 | ||
2837 | static int | |
2838 | recv_read_nvlist(libzfs_handle_t *hdl, int fd, int len, nvlist_t **nvp, | |
2839 | boolean_t byteswap, zio_cksum_t *zc) | |
2840 | { | |
2841 | char *buf; | |
2842 | int err; | |
2843 | ||
2844 | buf = zfs_alloc(hdl, len); | |
34dc7c2f | 2845 | |
7a6c12fd AJ |
2846 | if (len > hdl->libzfs_max_nvlist) { |
2847 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "nvlist too large")); | |
908d43d0 | 2848 | free(buf); |
7a6c12fd AJ |
2849 | return (ENOMEM); |
2850 | } | |
2851 | ||
34dc7c2f BB |
2852 | err = recv_read(hdl, fd, buf, len, byteswap, zc); |
2853 | if (err != 0) { | |
2854 | free(buf); | |
2855 | return (err); | |
2856 | } | |
2857 | ||
2858 | err = nvlist_unpack(buf, len, nvp, 0); | |
2859 | free(buf); | |
2860 | if (err != 0) { | |
2861 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
2862 | "stream (malformed nvlist)")); | |
2863 | return (EINVAL); | |
2864 | } | |
2865 | return (0); | |
2866 | } | |
2867 | ||
b5256303 TC |
2868 | /* |
2869 | * Returns the grand origin (origin of origin of origin...) of a given handle. | |
2870 | * If this dataset is not a clone, it simply returns a copy of the original | |
2871 | * handle. | |
2872 | */ | |
2873 | static zfs_handle_t * | |
2874 | recv_open_grand_origin(zfs_handle_t *zhp) | |
2875 | { | |
2876 | char origin[ZFS_MAX_DATASET_NAME_LEN]; | |
610cb4fb | 2877 | zprop_source_t src; |
b5256303 TC |
2878 | zfs_handle_t *ozhp = zfs_handle_dup(zhp); |
2879 | ||
2880 | while (ozhp != NULL) { | |
2881 | if (zfs_prop_get(ozhp, ZFS_PROP_ORIGIN, origin, | |
2882 | sizeof (origin), &src, NULL, 0, B_FALSE) != 0) | |
2883 | break; | |
2884 | ||
2885 | (void) zfs_close(ozhp); | |
2886 | ozhp = zfs_open(zhp->zfs_hdl, origin, ZFS_TYPE_FILESYSTEM); | |
2887 | } | |
2888 | ||
2889 | return (ozhp); | |
2890 | } | |
2891 | ||
2892 | static int | |
dc1c630b | 2893 | recv_rename_impl(zfs_handle_t *zhp, const char *name, const char *newname) |
b5256303 TC |
2894 | { |
2895 | int err; | |
2896 | zfs_handle_t *ozhp = NULL; | |
2897 | ||
2898 | /* | |
2899 | * Attempt to rename the dataset. If it fails with EACCES we have | |
2900 | * attempted to rename the dataset outside of its encryption root. | |
2901 | * Force the dataset to become an encryption root and try again. | |
2902 | */ | |
dc1c630b | 2903 | err = lzc_rename(name, newname); |
b5256303 TC |
2904 | if (err == EACCES) { |
2905 | ozhp = recv_open_grand_origin(zhp); | |
2906 | if (ozhp == NULL) { | |
2907 | err = ENOENT; | |
2908 | goto out; | |
2909 | } | |
2910 | ||
2911 | err = lzc_change_key(ozhp->zfs_name, DCP_CMD_FORCE_NEW_KEY, | |
2912 | NULL, NULL, 0); | |
2913 | if (err != 0) | |
2914 | goto out; | |
2915 | ||
dc1c630b | 2916 | err = lzc_rename(name, newname); |
b5256303 TC |
2917 | } |
2918 | ||
2919 | out: | |
2920 | if (ozhp != NULL) | |
2921 | zfs_close(ozhp); | |
2922 | return (err); | |
2923 | } | |
2924 | ||
34dc7c2f BB |
2925 | static int |
2926 | recv_rename(libzfs_handle_t *hdl, const char *name, const char *tryname, | |
330d06f9 | 2927 | int baselen, char *newname, recvflags_t *flags) |
34dc7c2f BB |
2928 | { |
2929 | static int seq; | |
34dc7c2f | 2930 | int err; |
b5256303 TC |
2931 | prop_changelist_t *clp = NULL; |
2932 | zfs_handle_t *zhp = NULL; | |
34dc7c2f BB |
2933 | |
2934 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); | |
b5256303 TC |
2935 | if (zhp == NULL) { |
2936 | err = -1; | |
2937 | goto out; | |
2938 | } | |
b128c09f | 2939 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
330d06f9 | 2940 | flags->force ? MS_FORCE : 0); |
b5256303 TC |
2941 | if (clp == NULL) { |
2942 | err = -1; | |
2943 | goto out; | |
2944 | } | |
34dc7c2f BB |
2945 | err = changelist_prefix(clp); |
2946 | if (err) | |
b5256303 | 2947 | goto out; |
34dc7c2f BB |
2948 | |
2949 | if (tryname) { | |
a51288aa | 2950 | (void) strlcpy(newname, tryname, ZFS_MAX_DATASET_NAME_LEN); |
330d06f9 | 2951 | if (flags->verbose) { |
34dc7c2f | 2952 | (void) printf("attempting rename %s to %s\n", |
dc1c630b | 2953 | name, newname); |
34dc7c2f | 2954 | } |
dc1c630b | 2955 | err = recv_rename_impl(zhp, name, newname); |
34dc7c2f BB |
2956 | if (err == 0) |
2957 | changelist_rename(clp, name, tryname); | |
2958 | } else { | |
2959 | err = ENOENT; | |
2960 | } | |
2961 | ||
13fe0198 | 2962 | if (err != 0 && strncmp(name + baselen, "recv-", 5) != 0) { |
34dc7c2f BB |
2963 | seq++; |
2964 | ||
eca7b760 IK |
2965 | (void) snprintf(newname, ZFS_MAX_DATASET_NAME_LEN, |
2966 | "%.*srecv-%u-%u", baselen, name, getpid(), seq); | |
34dc7c2f | 2967 | |
330d06f9 | 2968 | if (flags->verbose) { |
34dc7c2f | 2969 | (void) printf("failed - trying rename %s to %s\n", |
dc1c630b | 2970 | name, newname); |
34dc7c2f | 2971 | } |
dc1c630b | 2972 | err = recv_rename_impl(zhp, name, newname); |
34dc7c2f BB |
2973 | if (err == 0) |
2974 | changelist_rename(clp, name, newname); | |
330d06f9 | 2975 | if (err && flags->verbose) { |
34dc7c2f BB |
2976 | (void) printf("failed (%u) - " |
2977 | "will try again on next pass\n", errno); | |
2978 | } | |
2979 | err = EAGAIN; | |
330d06f9 | 2980 | } else if (flags->verbose) { |
34dc7c2f BB |
2981 | if (err == 0) |
2982 | (void) printf("success\n"); | |
2983 | else | |
2984 | (void) printf("failed (%u)\n", errno); | |
2985 | } | |
2986 | ||
2987 | (void) changelist_postfix(clp); | |
b5256303 TC |
2988 | |
2989 | out: | |
2990 | if (clp != NULL) | |
2991 | changelist_free(clp); | |
2992 | if (zhp != NULL) | |
2993 | zfs_close(zhp); | |
2994 | ||
2995 | return (err); | |
2996 | } | |
2997 | ||
2998 | static int | |
2999 | recv_promote(libzfs_handle_t *hdl, const char *fsname, | |
3000 | const char *origin_fsname, recvflags_t *flags) | |
3001 | { | |
3002 | int err; | |
3003 | zfs_cmd_t zc = {"\0"}; | |
3004 | zfs_handle_t *zhp = NULL, *ozhp = NULL; | |
3005 | ||
3006 | if (flags->verbose) | |
3007 | (void) printf("promoting %s\n", fsname); | |
3008 | ||
3009 | (void) strlcpy(zc.zc_value, origin_fsname, sizeof (zc.zc_value)); | |
3010 | (void) strlcpy(zc.zc_name, fsname, sizeof (zc.zc_name)); | |
3011 | ||
3012 | /* | |
3013 | * Attempt to promote the dataset. If it fails with EACCES the | |
3014 | * promotion would cause this dataset to leave its encryption root. | |
3015 | * Force the origin to become an encryption root and try again. | |
3016 | */ | |
3017 | err = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); | |
3018 | if (err == EACCES) { | |
3019 | zhp = zfs_open(hdl, fsname, ZFS_TYPE_DATASET); | |
3020 | if (zhp == NULL) { | |
3021 | err = -1; | |
3022 | goto out; | |
3023 | } | |
3024 | ||
3025 | ozhp = recv_open_grand_origin(zhp); | |
3026 | if (ozhp == NULL) { | |
3027 | err = -1; | |
3028 | goto out; | |
3029 | } | |
3030 | ||
3031 | err = lzc_change_key(ozhp->zfs_name, DCP_CMD_FORCE_NEW_KEY, | |
3032 | NULL, NULL, 0); | |
3033 | if (err != 0) | |
3034 | goto out; | |
3035 | ||
3036 | err = zfs_ioctl(hdl, ZFS_IOC_PROMOTE, &zc); | |
3037 | } | |
3038 | ||
3039 | out: | |
3040 | if (zhp != NULL) | |
3041 | zfs_close(zhp); | |
3042 | if (ozhp != NULL) | |
3043 | zfs_close(ozhp); | |
34dc7c2f BB |
3044 | |
3045 | return (err); | |
3046 | } | |
3047 | ||
3048 | static int | |
3049 | recv_destroy(libzfs_handle_t *hdl, const char *name, int baselen, | |
330d06f9 | 3050 | char *newname, recvflags_t *flags) |
34dc7c2f | 3051 | { |
34dc7c2f BB |
3052 | int err = 0; |
3053 | prop_changelist_t *clp; | |
3054 | zfs_handle_t *zhp; | |
45d1cae3 BB |
3055 | boolean_t defer = B_FALSE; |
3056 | int spa_version; | |
34dc7c2f BB |
3057 | |
3058 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); | |
3059 | if (zhp == NULL) | |
3060 | return (-1); | |
63652e15 DS |
3061 | zfs_type_t type = zfs_get_type(zhp); |
3062 | if (type == ZFS_TYPE_SNAPSHOT && | |
45d1cae3 BB |
3063 | zfs_spa_version(zhp, &spa_version) == 0 && |
3064 | spa_version >= SPA_VERSION_USERREFS) | |
3065 | defer = B_TRUE; | |
63652e15 DS |
3066 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
3067 | flags->force ? MS_FORCE : 0); | |
34dc7c2f BB |
3068 | zfs_close(zhp); |
3069 | if (clp == NULL) | |
3070 | return (-1); | |
63652e15 | 3071 | |
34dc7c2f BB |
3072 | err = changelist_prefix(clp); |
3073 | if (err) | |
3074 | return (err); | |
3075 | ||
330d06f9 | 3076 | if (flags->verbose) |
dc1c630b | 3077 | (void) printf("attempting destroy %s\n", name); |
63652e15 | 3078 | if (type == ZFS_TYPE_SNAPSHOT) { |
dc1c630b AG |
3079 | nvlist_t *nv = fnvlist_alloc(); |
3080 | fnvlist_add_boolean(nv, name); | |
3081 | err = lzc_destroy_snaps(nv, defer, NULL); | |
3082 | fnvlist_free(nv); | |
3083 | } else { | |
3084 | err = lzc_destroy(name); | |
3085 | } | |
34dc7c2f | 3086 | if (err == 0) { |
330d06f9 | 3087 | if (flags->verbose) |
34dc7c2f | 3088 | (void) printf("success\n"); |
dc1c630b | 3089 | changelist_remove(clp, name); |
34dc7c2f BB |
3090 | } |
3091 | ||
3092 | (void) changelist_postfix(clp); | |
3093 | changelist_free(clp); | |
3094 | ||
45d1cae3 | 3095 | /* |
428870ff BB |
3096 | * Deferred destroy might destroy the snapshot or only mark it to be |
3097 | * destroyed later, and it returns success in either case. | |
45d1cae3 | 3098 | */ |
428870ff BB |
3099 | if (err != 0 || (defer && zfs_dataset_exists(hdl, name, |
3100 | ZFS_TYPE_SNAPSHOT))) { | |
34dc7c2f | 3101 | err = recv_rename(hdl, name, NULL, baselen, newname, flags); |
428870ff | 3102 | } |
34dc7c2f BB |
3103 | |
3104 | return (err); | |
3105 | } | |
3106 | ||
3107 | typedef struct guid_to_name_data { | |
3108 | uint64_t guid; | |
47dfff3b | 3109 | boolean_t bookmark_ok; |
34dc7c2f | 3110 | char *name; |
330d06f9 | 3111 | char *skip; |
30af21b0 PD |
3112 | uint64_t *redact_snap_guids; |
3113 | uint64_t num_redact_snaps; | |
34dc7c2f BB |
3114 | } guid_to_name_data_t; |
3115 | ||
65c7cc49 | 3116 | static boolean_t |
30af21b0 PD |
3117 | redact_snaps_match(zfs_handle_t *zhp, guid_to_name_data_t *gtnd) |
3118 | { | |
3119 | uint64_t *bmark_snaps; | |
3120 | uint_t bmark_num_snaps; | |
3121 | nvlist_t *nvl; | |
3122 | if (zhp->zfs_type != ZFS_TYPE_BOOKMARK) | |
3123 | return (B_FALSE); | |
3124 | ||
3125 | nvl = fnvlist_lookup_nvlist(zhp->zfs_props, | |
3126 | zfs_prop_to_name(ZFS_PROP_REDACT_SNAPS)); | |
3127 | bmark_snaps = fnvlist_lookup_uint64_array(nvl, ZPROP_VALUE, | |
3128 | &bmark_num_snaps); | |
3129 | if (bmark_num_snaps != gtnd->num_redact_snaps) | |
3130 | return (B_FALSE); | |
3131 | int i = 0; | |
3132 | for (; i < bmark_num_snaps; i++) { | |
3133 | int j = 0; | |
3134 | for (; j < bmark_num_snaps; j++) { | |
3135 | if (bmark_snaps[i] == gtnd->redact_snap_guids[j]) | |
3136 | break; | |
3137 | } | |
3138 | if (j == bmark_num_snaps) | |
3139 | break; | |
3140 | } | |
3141 | return (i == bmark_num_snaps); | |
3142 | } | |
3143 | ||
34dc7c2f BB |
3144 | static int |
3145 | guid_to_name_cb(zfs_handle_t *zhp, void *arg) | |
3146 | { | |
3147 | guid_to_name_data_t *gtnd = arg; | |
47dfff3b | 3148 | const char *slash; |
34dc7c2f BB |
3149 | int err; |
3150 | ||
330d06f9 | 3151 | if (gtnd->skip != NULL && |
47dfff3b MA |
3152 | (slash = strrchr(zhp->zfs_name, '/')) != NULL && |
3153 | strcmp(slash + 1, gtnd->skip) == 0) { | |
3154 | zfs_close(zhp); | |
330d06f9 MA |
3155 | return (0); |
3156 | } | |
3157 | ||
30af21b0 PD |
3158 | if (zfs_prop_get_int(zhp, ZFS_PROP_GUID) == gtnd->guid && |
3159 | (gtnd->num_redact_snaps == -1 || redact_snaps_match(zhp, gtnd))) { | |
34dc7c2f | 3160 | (void) strcpy(gtnd->name, zhp->zfs_name); |
428870ff | 3161 | zfs_close(zhp); |
34dc7c2f BB |
3162 | return (EEXIST); |
3163 | } | |
330d06f9 | 3164 | |
dc95911d | 3165 | err = zfs_iter_children(zhp, 0, guid_to_name_cb, gtnd); |
47dfff3b | 3166 | if (err != EEXIST && gtnd->bookmark_ok) |
dc95911d | 3167 | err = zfs_iter_bookmarks(zhp, 0, guid_to_name_cb, gtnd); |
34dc7c2f BB |
3168 | zfs_close(zhp); |
3169 | return (err); | |
3170 | } | |
3171 | ||
330d06f9 MA |
3172 | /* |
3173 | * Attempt to find the local dataset associated with this guid. In the case of | |
3174 | * multiple matches, we attempt to find the "best" match by searching | |
3175 | * progressively larger portions of the hierarchy. This allows one to send a | |
3176 | * tree of datasets individually and guarantee that we will find the source | |
3177 | * guid within that hierarchy, even if there are multiple matches elsewhere. | |
30af21b0 PD |
3178 | * |
3179 | * If num_redact_snaps is not -1, we attempt to find a redaction bookmark with | |
3180 | * the specified number of redaction snapshots. If num_redact_snaps isn't 0 or | |
3181 | * -1, then redact_snap_guids will be an array of the guids of the snapshots the | |
3182 | * redaction bookmark was created with. If num_redact_snaps is -1, then we will | |
3183 | * attempt to find a snapshot or bookmark (if bookmark_ok is passed) with the | |
3184 | * given guid. Note that a redaction bookmark can be returned if | |
3185 | * num_redact_snaps == -1. | |
330d06f9 | 3186 | */ |
34dc7c2f | 3187 | static int |
30af21b0 PD |
3188 | guid_to_name_redact_snaps(libzfs_handle_t *hdl, const char *parent, |
3189 | uint64_t guid, boolean_t bookmark_ok, uint64_t *redact_snap_guids, | |
3190 | uint64_t num_redact_snaps, char *name) | |
34dc7c2f | 3191 | { |
eca7b760 | 3192 | char pname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 3193 | guid_to_name_data_t gtnd; |
34dc7c2f BB |
3194 | |
3195 | gtnd.guid = guid; | |
47dfff3b | 3196 | gtnd.bookmark_ok = bookmark_ok; |
34dc7c2f | 3197 | gtnd.name = name; |
330d06f9 | 3198 | gtnd.skip = NULL; |
30af21b0 PD |
3199 | gtnd.redact_snap_guids = redact_snap_guids; |
3200 | gtnd.num_redact_snaps = num_redact_snaps; | |
34dc7c2f | 3201 | |
330d06f9 | 3202 | /* |
47dfff3b MA |
3203 | * Search progressively larger portions of the hierarchy, starting |
3204 | * with the filesystem specified by 'parent'. This will | |
330d06f9 MA |
3205 | * select the "most local" version of the origin snapshot in the case |
3206 | * that there are multiple matching snapshots in the system. | |
3207 | */ | |
47dfff3b MA |
3208 | (void) strlcpy(pname, parent, sizeof (pname)); |
3209 | char *cp = strrchr(pname, '@'); | |
3210 | if (cp == NULL) | |
3211 | cp = strchr(pname, '\0'); | |
3212 | for (; cp != NULL; cp = strrchr(pname, '/')) { | |
330d06f9 | 3213 | /* Chop off the last component and open the parent */ |
34dc7c2f | 3214 | *cp = '\0'; |
47dfff3b | 3215 | zfs_handle_t *zhp = make_dataset_handle(hdl, pname); |
330d06f9 MA |
3216 | |
3217 | if (zhp == NULL) | |
3218 | continue; | |
47dfff3b MA |
3219 | int err = guid_to_name_cb(zfs_handle_dup(zhp), >nd); |
3220 | if (err != EEXIST) | |
dc95911d | 3221 | err = zfs_iter_children(zhp, 0, guid_to_name_cb, >nd); |
47dfff3b | 3222 | if (err != EEXIST && bookmark_ok) |
dc95911d AJ |
3223 | err = zfs_iter_bookmarks(zhp, 0, guid_to_name_cb, |
3224 | >nd); | |
34dc7c2f | 3225 | zfs_close(zhp); |
330d06f9 MA |
3226 | if (err == EEXIST) |
3227 | return (0); | |
34dc7c2f | 3228 | |
330d06f9 | 3229 | /* |
47dfff3b MA |
3230 | * Remember the last portion of the dataset so we skip it next |
3231 | * time through (as we've already searched that portion of the | |
3232 | * hierarchy). | |
330d06f9 | 3233 | */ |
47dfff3b | 3234 | gtnd.skip = strrchr(pname, '/') + 1; |
330d06f9 | 3235 | } |
34dc7c2f | 3236 | |
330d06f9 | 3237 | return (ENOENT); |
34dc7c2f BB |
3238 | } |
3239 | ||
30af21b0 PD |
3240 | static int |
3241 | guid_to_name(libzfs_handle_t *hdl, const char *parent, uint64_t guid, | |
3242 | boolean_t bookmark_ok, char *name) | |
3243 | { | |
3244 | return (guid_to_name_redact_snaps(hdl, parent, guid, bookmark_ok, NULL, | |
3245 | -1, name)); | |
3246 | } | |
3247 | ||
34dc7c2f | 3248 | /* |
330d06f9 MA |
3249 | * Return +1 if guid1 is before guid2, 0 if they are the same, and -1 if |
3250 | * guid1 is after guid2. | |
34dc7c2f BB |
3251 | */ |
3252 | static int | |
3253 | created_before(libzfs_handle_t *hdl, avl_tree_t *avl, | |
3254 | uint64_t guid1, uint64_t guid2) | |
3255 | { | |
3256 | nvlist_t *nvfs; | |
d1807f16 | 3257 | const char *fsname = NULL, *snapname = NULL; |
eca7b760 | 3258 | char buf[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 3259 | int rv; |
330d06f9 MA |
3260 | zfs_handle_t *guid1hdl, *guid2hdl; |
3261 | uint64_t create1, create2; | |
34dc7c2f BB |
3262 | |
3263 | if (guid2 == 0) | |
3264 | return (0); | |
3265 | if (guid1 == 0) | |
3266 | return (1); | |
3267 | ||
3268 | nvfs = fsavl_find(avl, guid1, &snapname); | |
60a2434b | 3269 | fsname = fnvlist_lookup_string(nvfs, "name"); |
34dc7c2f | 3270 | (void) snprintf(buf, sizeof (buf), "%s@%s", fsname, snapname); |
330d06f9 MA |
3271 | guid1hdl = zfs_open(hdl, buf, ZFS_TYPE_SNAPSHOT); |
3272 | if (guid1hdl == NULL) | |
34dc7c2f BB |
3273 | return (-1); |
3274 | ||
3275 | nvfs = fsavl_find(avl, guid2, &snapname); | |
60a2434b | 3276 | fsname = fnvlist_lookup_string(nvfs, "name"); |
34dc7c2f | 3277 | (void) snprintf(buf, sizeof (buf), "%s@%s", fsname, snapname); |
330d06f9 MA |
3278 | guid2hdl = zfs_open(hdl, buf, ZFS_TYPE_SNAPSHOT); |
3279 | if (guid2hdl == NULL) { | |
3280 | zfs_close(guid1hdl); | |
34dc7c2f BB |
3281 | return (-1); |
3282 | } | |
3283 | ||
330d06f9 MA |
3284 | create1 = zfs_prop_get_int(guid1hdl, ZFS_PROP_CREATETXG); |
3285 | create2 = zfs_prop_get_int(guid2hdl, ZFS_PROP_CREATETXG); | |
34dc7c2f | 3286 | |
330d06f9 MA |
3287 | if (create1 < create2) |
3288 | rv = -1; | |
3289 | else if (create1 > create2) | |
3290 | rv = +1; | |
3291 | else | |
3292 | rv = 0; | |
3293 | ||
3294 | zfs_close(guid1hdl); | |
3295 | zfs_close(guid2hdl); | |
34dc7c2f BB |
3296 | |
3297 | return (rv); | |
3298 | } | |
3299 | ||
b5256303 | 3300 | /* |
83472fab | 3301 | * This function reestablishes the hierarchy of encryption roots after a |
b5256303 TC |
3302 | * recursive incremental receive has completed. This must be done after the |
3303 | * second call to recv_incremental_replication() has renamed and promoted all | |
83472fab | 3304 | * sent datasets to their final locations in the dataset hierarchy. |
b5256303 TC |
3305 | */ |
3306 | static int | |
bb61cc31 | 3307 | recv_fix_encryption_hierarchy(libzfs_handle_t *hdl, const char *top_zfs, |
7633c0ae | 3308 | nvlist_t *stream_nv) |
b5256303 TC |
3309 | { |
3310 | int err; | |
3311 | nvpair_t *fselem = NULL; | |
3312 | nvlist_t *stream_fss; | |
3313 | ||
60a2434b | 3314 | stream_fss = fnvlist_lookup_nvlist(stream_nv, "fss"); |
b5256303 TC |
3315 | |
3316 | while ((fselem = nvlist_next_nvpair(stream_fss, fselem)) != NULL) { | |
3317 | zfs_handle_t *zhp = NULL; | |
3318 | uint64_t crypt; | |
3319 | nvlist_t *snaps, *props, *stream_nvfs = NULL; | |
3320 | nvpair_t *snapel = NULL; | |
3321 | boolean_t is_encroot, is_clone, stream_encroot; | |
3322 | char *cp; | |
d1807f16 | 3323 | const char *stream_keylocation = NULL; |
b5256303 TC |
3324 | char keylocation[MAXNAMELEN]; |
3325 | char fsname[ZFS_MAX_DATASET_NAME_LEN]; | |
3326 | ||
3327 | keylocation[0] = '\0'; | |
60a2434b RM |
3328 | stream_nvfs = fnvpair_value_nvlist(fselem); |
3329 | snaps = fnvlist_lookup_nvlist(stream_nvfs, "snaps"); | |
3330 | props = fnvlist_lookup_nvlist(stream_nvfs, "props"); | |
b5256303 TC |
3331 | stream_encroot = nvlist_exists(stream_nvfs, "is_encroot"); |
3332 | ||
3333 | /* find a snapshot from the stream that exists locally */ | |
3334 | err = ENOENT; | |
3335 | while ((snapel = nvlist_next_nvpair(snaps, snapel)) != NULL) { | |
3336 | uint64_t guid; | |
3337 | ||
60a2434b | 3338 | guid = fnvpair_value_uint64(snapel); |
bb61cc31 | 3339 | err = guid_to_name(hdl, top_zfs, guid, B_FALSE, |
b5256303 TC |
3340 | fsname); |
3341 | if (err == 0) | |
3342 | break; | |
3343 | } | |
3344 | ||
3345 | if (err != 0) | |
3346 | continue; | |
3347 | ||
3348 | cp = strchr(fsname, '@'); | |
3349 | if (cp != NULL) | |
3350 | *cp = '\0'; | |
3351 | ||
3352 | zhp = zfs_open(hdl, fsname, ZFS_TYPE_DATASET); | |
3353 | if (zhp == NULL) { | |
3354 | err = ENOENT; | |
3355 | goto error; | |
3356 | } | |
3357 | ||
3358 | crypt = zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION); | |
3359 | is_clone = zhp->zfs_dmustats.dds_origin[0] != '\0'; | |
3360 | (void) zfs_crypto_get_encryption_root(zhp, &is_encroot, NULL); | |
3361 | ||
da689887 | 3362 | /* we don't need to do anything for unencrypted datasets */ |
b5256303 TC |
3363 | if (crypt == ZIO_CRYPT_OFF) { |
3364 | zfs_close(zhp); | |
3365 | continue; | |
3366 | } | |
3367 | ||
3368 | /* | |
3369 | * If the dataset is flagged as an encryption root, was not | |
3370 | * received as a clone and is not currently an encryption root, | |
3371 | * force it to become one. Fixup the keylocation if necessary. | |
3372 | */ | |
3373 | if (stream_encroot) { | |
3374 | if (!is_clone && !is_encroot) { | |
3375 | err = lzc_change_key(fsname, | |
3376 | DCP_CMD_FORCE_NEW_KEY, NULL, NULL, 0); | |
3377 | if (err != 0) { | |
3378 | zfs_close(zhp); | |
3379 | goto error; | |
3380 | } | |
3381 | } | |
3382 | ||
60a2434b RM |
3383 | stream_keylocation = fnvlist_lookup_string(props, |
3384 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION)); | |
b5256303 TC |
3385 | |
3386 | /* | |
3387 | * Refresh the properties in case the call to | |
3388 | * lzc_change_key() changed the value. | |
3389 | */ | |
3390 | zfs_refresh_properties(zhp); | |
3391 | err = zfs_prop_get(zhp, ZFS_PROP_KEYLOCATION, | |
3392 | keylocation, sizeof (keylocation), NULL, NULL, | |
3393 | 0, B_TRUE); | |
3394 | if (err != 0) { | |
3395 | zfs_close(zhp); | |
3396 | goto error; | |
3397 | } | |
3398 | ||
3399 | if (strcmp(keylocation, stream_keylocation) != 0) { | |
3400 | err = zfs_prop_set(zhp, | |
3401 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), | |
3402 | stream_keylocation); | |
3403 | if (err != 0) { | |
3404 | zfs_close(zhp); | |
3405 | goto error; | |
3406 | } | |
3407 | } | |
3408 | } | |
3409 | ||
3410 | /* | |
3411 | * If the dataset is not flagged as an encryption root and is | |
3412 | * currently an encryption root, force it to inherit from its | |
4807c0ba TC |
3413 | * parent. The root of a raw send should never be |
3414 | * force-inherited. | |
b5256303 | 3415 | */ |
4807c0ba TC |
3416 | if (!stream_encroot && is_encroot && |
3417 | strcmp(top_zfs, fsname) != 0) { | |
b5256303 TC |
3418 | err = lzc_change_key(fsname, DCP_CMD_FORCE_INHERIT, |
3419 | NULL, NULL, 0); | |
3420 | if (err != 0) { | |
3421 | zfs_close(zhp); | |
3422 | goto error; | |
3423 | } | |
3424 | } | |
3425 | ||
3426 | zfs_close(zhp); | |
3427 | } | |
3428 | ||
3429 | return (0); | |
3430 | ||
3431 | error: | |
3432 | return (err); | |
3433 | } | |
3434 | ||
34dc7c2f BB |
3435 | static int |
3436 | recv_incremental_replication(libzfs_handle_t *hdl, const char *tofs, | |
330d06f9 | 3437 | recvflags_t *flags, nvlist_t *stream_nv, avl_tree_t *stream_avl, |
428870ff | 3438 | nvlist_t *renamed) |
34dc7c2f | 3439 | { |
7509a3d2 | 3440 | nvlist_t *local_nv, *deleted = NULL; |
34dc7c2f BB |
3441 | avl_tree_t *local_avl; |
3442 | nvpair_t *fselem, *nextfselem; | |
d1807f16 | 3443 | const char *fromsnap; |
eca7b760 | 3444 | char newname[ZFS_MAX_DATASET_NAME_LEN]; |
7509a3d2 | 3445 | char guidname[32]; |
34dc7c2f | 3446 | int error; |
428870ff | 3447 | boolean_t needagain, progress, recursive; |
d1807f16 | 3448 | const char *s1, *s2; |
34dc7c2f | 3449 | |
60a2434b | 3450 | fromsnap = fnvlist_lookup_string(stream_nv, "fromsnap"); |
428870ff BB |
3451 | |
3452 | recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == | |
3453 | ENOENT); | |
34dc7c2f | 3454 | |
330d06f9 | 3455 | if (flags->dryrun) |
34dc7c2f BB |
3456 | return (0); |
3457 | ||
3458 | again: | |
3459 | needagain = progress = B_FALSE; | |
3460 | ||
60a2434b | 3461 | deleted = fnvlist_alloc(); |
7509a3d2 | 3462 | |
34dc7c2f | 3463 | if ((error = gather_nvlist(hdl, tofs, fromsnap, NULL, |
099fa7e4 | 3464 | recursive, B_TRUE, B_FALSE, recursive, B_FALSE, B_FALSE, B_FALSE, |
f94b3cbf | 3465 | B_FALSE, B_TRUE, &local_nv, &local_avl)) != 0) |
34dc7c2f BB |
3466 | return (error); |
3467 | ||
3468 | /* | |
3469 | * Process deletes and renames | |
3470 | */ | |
3471 | for (fselem = nvlist_next_nvpair(local_nv, NULL); | |
3472 | fselem; fselem = nextfselem) { | |
3473 | nvlist_t *nvfs, *snaps; | |
3474 | nvlist_t *stream_nvfs = NULL; | |
3475 | nvpair_t *snapelem, *nextsnapelem; | |
3476 | uint64_t fromguid = 0; | |
3477 | uint64_t originguid = 0; | |
3478 | uint64_t stream_originguid = 0; | |
3479 | uint64_t parent_fromsnap_guid, stream_parent_fromsnap_guid; | |
d1807f16 | 3480 | const char *fsname, *stream_fsname; |
34dc7c2f BB |
3481 | |
3482 | nextfselem = nvlist_next_nvpair(local_nv, fselem); | |
3483 | ||
60a2434b RM |
3484 | nvfs = fnvpair_value_nvlist(fselem); |
3485 | snaps = fnvlist_lookup_nvlist(nvfs, "snaps"); | |
3486 | fsname = fnvlist_lookup_string(nvfs, "name"); | |
3487 | parent_fromsnap_guid = fnvlist_lookup_uint64(nvfs, | |
3488 | "parentfromsnap"); | |
34dc7c2f BB |
3489 | (void) nvlist_lookup_uint64(nvfs, "origin", &originguid); |
3490 | ||
3491 | /* | |
3492 | * First find the stream's fs, so we can check for | |
3493 | * a different origin (due to "zfs promote") | |
3494 | */ | |
3495 | for (snapelem = nvlist_next_nvpair(snaps, NULL); | |
3496 | snapelem; snapelem = nvlist_next_nvpair(snaps, snapelem)) { | |
3497 | uint64_t thisguid; | |
3498 | ||
60a2434b | 3499 | thisguid = fnvpair_value_uint64(snapelem); |
34dc7c2f BB |
3500 | stream_nvfs = fsavl_find(stream_avl, thisguid, NULL); |
3501 | ||
3502 | if (stream_nvfs != NULL) | |
3503 | break; | |
3504 | } | |
3505 | ||
3506 | /* check for promote */ | |
3507 | (void) nvlist_lookup_uint64(stream_nvfs, "origin", | |
3508 | &stream_originguid); | |
3509 | if (stream_nvfs && originguid != stream_originguid) { | |
3510 | switch (created_before(hdl, local_avl, | |
3511 | stream_originguid, originguid)) { | |
3512 | case 1: { | |
3513 | /* promote it! */ | |
34dc7c2f | 3514 | nvlist_t *origin_nvfs; |
d1807f16 | 3515 | const char *origin_fsname; |
34dc7c2f | 3516 | |
34dc7c2f BB |
3517 | origin_nvfs = fsavl_find(local_avl, originguid, |
3518 | NULL); | |
60a2434b RM |
3519 | origin_fsname = fnvlist_lookup_string( |
3520 | origin_nvfs, "name"); | |
b5256303 TC |
3521 | error = recv_promote(hdl, fsname, origin_fsname, |
3522 | flags); | |
34dc7c2f BB |
3523 | if (error == 0) |
3524 | progress = B_TRUE; | |
3525 | break; | |
3526 | } | |
3527 | default: | |
3528 | break; | |
3529 | case -1: | |
3530 | fsavl_destroy(local_avl); | |
60a2434b | 3531 | fnvlist_free(local_nv); |
34dc7c2f BB |
3532 | return (-1); |
3533 | } | |
3534 | /* | |
3535 | * We had/have the wrong origin, therefore our | |
3536 | * list of snapshots is wrong. Need to handle | |
3537 | * them on the next pass. | |
3538 | */ | |
3539 | needagain = B_TRUE; | |
3540 | continue; | |
3541 | } | |
3542 | ||
3543 | for (snapelem = nvlist_next_nvpair(snaps, NULL); | |
3544 | snapelem; snapelem = nextsnapelem) { | |
3545 | uint64_t thisguid; | |
d1807f16 | 3546 | const char *stream_snapname; |
b128c09f | 3547 | nvlist_t *found, *props; |
34dc7c2f BB |
3548 | |
3549 | nextsnapelem = nvlist_next_nvpair(snaps, snapelem); | |
3550 | ||
60a2434b | 3551 | thisguid = fnvpair_value_uint64(snapelem); |
34dc7c2f BB |
3552 | found = fsavl_find(stream_avl, thisguid, |
3553 | &stream_snapname); | |
3554 | ||
3555 | /* check for delete */ | |
3556 | if (found == NULL) { | |
eca7b760 | 3557 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f | 3558 | |
330d06f9 | 3559 | if (!flags->force) |
34dc7c2f BB |
3560 | continue; |
3561 | ||
3562 | (void) snprintf(name, sizeof (name), "%s@%s", | |
3563 | fsname, nvpair_name(snapelem)); | |
3564 | ||
3565 | error = recv_destroy(hdl, name, | |
3566 | strlen(fsname)+1, newname, flags); | |
3567 | if (error) | |
3568 | needagain = B_TRUE; | |
3569 | else | |
3570 | progress = B_TRUE; | |
3df29340 BB |
3571 | sprintf(guidname, "%llu", |
3572 | (u_longlong_t)thisguid); | |
7509a3d2 | 3573 | nvlist_add_boolean(deleted, guidname); |
34dc7c2f BB |
3574 | continue; |
3575 | } | |
3576 | ||
3577 | stream_nvfs = found; | |
3578 | ||
b128c09f BB |
3579 | if (0 == nvlist_lookup_nvlist(stream_nvfs, "snapprops", |
3580 | &props) && 0 == nvlist_lookup_nvlist(props, | |
3581 | stream_snapname, &props)) { | |
13fe0198 | 3582 | zfs_cmd_t zc = {"\0"}; |
b128c09f | 3583 | |
428870ff | 3584 | zc.zc_cookie = B_TRUE; /* received */ |
b128c09f BB |
3585 | (void) snprintf(zc.zc_name, sizeof (zc.zc_name), |
3586 | "%s@%s", fsname, nvpair_name(snapelem)); | |
18dbf5c8 AZ |
3587 | zcmd_write_src_nvlist(hdl, &zc, props); |
3588 | (void) zfs_ioctl(hdl, | |
3589 | ZFS_IOC_SET_PROP, &zc); | |
3590 | zcmd_free_nvlists(&zc); | |
b128c09f BB |
3591 | } |
3592 | ||
34dc7c2f BB |
3593 | /* check for different snapname */ |
3594 | if (strcmp(nvpair_name(snapelem), | |
3595 | stream_snapname) != 0) { | |
eca7b760 IK |
3596 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
3597 | char tryname[ZFS_MAX_DATASET_NAME_LEN]; | |
34dc7c2f BB |
3598 | |
3599 | (void) snprintf(name, sizeof (name), "%s@%s", | |
3600 | fsname, nvpair_name(snapelem)); | |
3601 | (void) snprintf(tryname, sizeof (name), "%s@%s", | |
3602 | fsname, stream_snapname); | |
3603 | ||
3604 | error = recv_rename(hdl, name, tryname, | |
3605 | strlen(fsname)+1, newname, flags); | |
3606 | if (error) | |
3607 | needagain = B_TRUE; | |
3608 | else | |
3609 | progress = B_TRUE; | |
3610 | } | |
3611 | ||
3612 | if (strcmp(stream_snapname, fromsnap) == 0) | |
3613 | fromguid = thisguid; | |
3614 | } | |
3615 | ||
3616 | /* check for delete */ | |
3617 | if (stream_nvfs == NULL) { | |
330d06f9 | 3618 | if (!flags->force) |
34dc7c2f BB |
3619 | continue; |
3620 | ||
3621 | error = recv_destroy(hdl, fsname, strlen(tofs)+1, | |
3622 | newname, flags); | |
3623 | if (error) | |
3624 | needagain = B_TRUE; | |
3625 | else | |
3626 | progress = B_TRUE; | |
3df29340 | 3627 | sprintf(guidname, "%llu", |
02730c33 | 3628 | (u_longlong_t)parent_fromsnap_guid); |
7509a3d2 | 3629 | nvlist_add_boolean(deleted, guidname); |
34dc7c2f BB |
3630 | continue; |
3631 | } | |
3632 | ||
428870ff | 3633 | if (fromguid == 0) { |
330d06f9 | 3634 | if (flags->verbose) { |
428870ff BB |
3635 | (void) printf("local fs %s does not have " |
3636 | "fromsnap (%s in stream); must have " | |
3637 | "been deleted locally; ignoring\n", | |
3638 | fsname, fromsnap); | |
3639 | } | |
34dc7c2f BB |
3640 | continue; |
3641 | } | |
3642 | ||
60a2434b RM |
3643 | stream_fsname = fnvlist_lookup_string(stream_nvfs, "name"); |
3644 | stream_parent_fromsnap_guid = fnvlist_lookup_uint64( | |
3645 | stream_nvfs, "parentfromsnap"); | |
34dc7c2f | 3646 | |
428870ff BB |
3647 | s1 = strrchr(fsname, '/'); |
3648 | s2 = strrchr(stream_fsname, '/'); | |
3649 | ||
7509a3d2 | 3650 | /* |
3651 | * Check if we're going to rename based on parent guid change | |
3652 | * and the current parent guid was also deleted. If it was then | |
3653 | * rename will fail and is likely unneeded, so avoid this and | |
3654 | * force an early retry to determine the new | |
3655 | * parent_fromsnap_guid. | |
3656 | */ | |
3657 | if (stream_parent_fromsnap_guid != 0 && | |
3658 | parent_fromsnap_guid != 0 && | |
3659 | stream_parent_fromsnap_guid != parent_fromsnap_guid) { | |
3df29340 | 3660 | sprintf(guidname, "%llu", |
02730c33 | 3661 | (u_longlong_t)parent_fromsnap_guid); |
7509a3d2 | 3662 | if (nvlist_exists(deleted, guidname)) { |
3663 | progress = B_TRUE; | |
3664 | needagain = B_TRUE; | |
3665 | goto doagain; | |
3666 | } | |
3667 | } | |
3668 | ||
428870ff BB |
3669 | /* |
3670 | * Check for rename. If the exact receive path is specified, it | |
3671 | * does not count as a rename, but we still need to check the | |
3672 | * datasets beneath it. | |
3673 | */ | |
34dc7c2f | 3674 | if ((stream_parent_fromsnap_guid != 0 && |
428870ff | 3675 | parent_fromsnap_guid != 0 && |
34dc7c2f | 3676 | stream_parent_fromsnap_guid != parent_fromsnap_guid) || |
330d06f9 | 3677 | ((flags->isprefix || strcmp(tofs, fsname) != 0) && |
428870ff | 3678 | (s1 != NULL) && (s2 != NULL) && strcmp(s1, s2) != 0)) { |
34dc7c2f | 3679 | nvlist_t *parent; |
eca7b760 | 3680 | char tryname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
3681 | |
3682 | parent = fsavl_find(local_avl, | |
3683 | stream_parent_fromsnap_guid, NULL); | |
3684 | /* | |
3685 | * NB: parent might not be found if we used the | |
3686 | * tosnap for stream_parent_fromsnap_guid, | |
3687 | * because the parent is a newly-created fs; | |
3688 | * we'll be able to rename it after we recv the | |
3689 | * new fs. | |
3690 | */ | |
3691 | if (parent != NULL) { | |
d1807f16 | 3692 | const char *pname; |
34dc7c2f | 3693 | |
60a2434b | 3694 | pname = fnvlist_lookup_string(parent, "name"); |
34dc7c2f BB |
3695 | (void) snprintf(tryname, sizeof (tryname), |
3696 | "%s%s", pname, strrchr(stream_fsname, '/')); | |
3697 | } else { | |
3698 | tryname[0] = '\0'; | |
330d06f9 | 3699 | if (flags->verbose) { |
34dc7c2f BB |
3700 | (void) printf("local fs %s new parent " |
3701 | "not found\n", fsname); | |
3702 | } | |
3703 | } | |
3704 | ||
428870ff BB |
3705 | newname[0] = '\0'; |
3706 | ||
34dc7c2f BB |
3707 | error = recv_rename(hdl, fsname, tryname, |
3708 | strlen(tofs)+1, newname, flags); | |
428870ff BB |
3709 | |
3710 | if (renamed != NULL && newname[0] != '\0') { | |
60a2434b | 3711 | fnvlist_add_boolean(renamed, newname); |
428870ff BB |
3712 | } |
3713 | ||
34dc7c2f BB |
3714 | if (error) |
3715 | needagain = B_TRUE; | |
3716 | else | |
3717 | progress = B_TRUE; | |
3718 | } | |
3719 | } | |
3720 | ||
7509a3d2 | 3721 | doagain: |
34dc7c2f | 3722 | fsavl_destroy(local_avl); |
60a2434b RM |
3723 | fnvlist_free(local_nv); |
3724 | fnvlist_free(deleted); | |
34dc7c2f BB |
3725 | |
3726 | if (needagain && progress) { | |
3727 | /* do another pass to fix up temporary names */ | |
330d06f9 | 3728 | if (flags->verbose) |
34dc7c2f BB |
3729 | (void) printf("another pass:\n"); |
3730 | goto again; | |
3731 | } | |
3732 | ||
b5256303 | 3733 | return (needagain || error != 0); |
34dc7c2f BB |
3734 | } |
3735 | ||
3736 | static int | |
3737 | zfs_receive_package(libzfs_handle_t *hdl, int fd, const char *destname, | |
330d06f9 | 3738 | recvflags_t *flags, dmu_replay_record_t *drr, zio_cksum_t *zc, |
196bee4c | 3739 | char **top_zfs, nvlist_t *cmdprops) |
34dc7c2f BB |
3740 | { |
3741 | nvlist_t *stream_nv = NULL; | |
3742 | avl_tree_t *stream_avl = NULL; | |
d1807f16 RY |
3743 | const char *fromsnap = NULL; |
3744 | const char *sendsnap = NULL; | |
428870ff | 3745 | char *cp; |
eca7b760 IK |
3746 | char tofs[ZFS_MAX_DATASET_NAME_LEN]; |
3747 | char sendfs[ZFS_MAX_DATASET_NAME_LEN]; | |
d68a2bfa | 3748 | char errbuf[ERRBUFLEN]; |
34dc7c2f BB |
3749 | dmu_replay_record_t drre; |
3750 | int error; | |
3751 | boolean_t anyerr = B_FALSE; | |
3752 | boolean_t softerr = B_FALSE; | |
b5256303 | 3753 | boolean_t recursive, raw; |
34dc7c2f BB |
3754 | |
3755 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
3756 | "cannot receive")); | |
3757 | ||
34dc7c2f BB |
3758 | assert(drr->drr_type == DRR_BEGIN); |
3759 | assert(drr->drr_u.drr_begin.drr_magic == DMU_BACKUP_MAGIC); | |
428870ff BB |
3760 | assert(DMU_GET_STREAM_HDRTYPE(drr->drr_u.drr_begin.drr_versioninfo) == |
3761 | DMU_COMPOUNDSTREAM); | |
34dc7c2f BB |
3762 | |
3763 | /* | |
3764 | * Read in the nvlist from the stream. | |
3765 | */ | |
3766 | if (drr->drr_payloadlen != 0) { | |
34dc7c2f | 3767 | error = recv_read_nvlist(hdl, fd, drr->drr_payloadlen, |
330d06f9 | 3768 | &stream_nv, flags->byteswap, zc); |
34dc7c2f BB |
3769 | if (error) { |
3770 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
3771 | goto out; | |
3772 | } | |
3773 | } | |
3774 | ||
428870ff BB |
3775 | recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == |
3776 | ENOENT); | |
b5256303 | 3777 | raw = (nvlist_lookup_boolean(stream_nv, "raw") == 0); |
428870ff BB |
3778 | |
3779 | if (recursive && strchr(destname, '@')) { | |
3780 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3781 | "cannot specify snapshot name for multi-snapshot stream")); | |
3782 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
3783 | goto out; | |
3784 | } | |
3785 | ||
34dc7c2f BB |
3786 | /* |
3787 | * Read in the end record and verify checksum. | |
3788 | */ | |
3789 | if (0 != (error = recv_read(hdl, fd, &drre, sizeof (drre), | |
330d06f9 | 3790 | flags->byteswap, NULL))) |
34dc7c2f | 3791 | goto out; |
330d06f9 | 3792 | if (flags->byteswap) { |
34dc7c2f BB |
3793 | drre.drr_type = BSWAP_32(drre.drr_type); |
3794 | drre.drr_u.drr_end.drr_checksum.zc_word[0] = | |
3795 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[0]); | |
3796 | drre.drr_u.drr_end.drr_checksum.zc_word[1] = | |
3797 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[1]); | |
3798 | drre.drr_u.drr_end.drr_checksum.zc_word[2] = | |
3799 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[2]); | |
3800 | drre.drr_u.drr_end.drr_checksum.zc_word[3] = | |
3801 | BSWAP_64(drre.drr_u.drr_end.drr_checksum.zc_word[3]); | |
3802 | } | |
3803 | if (drre.drr_type != DRR_END) { | |
3804 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
3805 | goto out; | |
3806 | } | |
3807 | if (!ZIO_CHECKSUM_EQUAL(drre.drr_u.drr_end.drr_checksum, *zc)) { | |
3808 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3809 | "incorrect header checksum")); | |
3810 | error = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
3811 | goto out; | |
3812 | } | |
3813 | ||
3814 | (void) nvlist_lookup_string(stream_nv, "fromsnap", &fromsnap); | |
3815 | ||
3816 | if (drr->drr_payloadlen != 0) { | |
3817 | nvlist_t *stream_fss; | |
3818 | ||
60a2434b | 3819 | stream_fss = fnvlist_lookup_nvlist(stream_nv, "fss"); |
34dc7c2f BB |
3820 | if ((stream_avl = fsavl_create(stream_fss)) == NULL) { |
3821 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
3822 | "couldn't allocate avl tree")); | |
3823 | error = zfs_error(hdl, EZFS_NOMEM, errbuf); | |
3824 | goto out; | |
3825 | } | |
3826 | ||
4c3c6b6c | 3827 | if (fromsnap != NULL && recursive) { |
428870ff BB |
3828 | nvlist_t *renamed = NULL; |
3829 | nvpair_t *pair = NULL; | |
3830 | ||
eca7b760 | 3831 | (void) strlcpy(tofs, destname, sizeof (tofs)); |
330d06f9 | 3832 | if (flags->isprefix) { |
428870ff BB |
3833 | struct drr_begin *drrb = &drr->drr_u.drr_begin; |
3834 | int i; | |
3835 | ||
330d06f9 | 3836 | if (flags->istail) { |
428870ff BB |
3837 | cp = strrchr(drrb->drr_toname, '/'); |
3838 | if (cp == NULL) { | |
3839 | (void) strlcat(tofs, "/", | |
eca7b760 | 3840 | sizeof (tofs)); |
428870ff BB |
3841 | i = 0; |
3842 | } else { | |
3843 | i = (cp - drrb->drr_toname); | |
3844 | } | |
3845 | } else { | |
3846 | i = strcspn(drrb->drr_toname, "/@"); | |
3847 | } | |
34dc7c2f | 3848 | /* zfs_receive_one() will create_parents() */ |
428870ff | 3849 | (void) strlcat(tofs, &drrb->drr_toname[i], |
eca7b760 | 3850 | sizeof (tofs)); |
34dc7c2f BB |
3851 | *strchr(tofs, '@') = '\0'; |
3852 | } | |
428870ff | 3853 | |
4c3c6b6c | 3854 | if (!flags->dryrun && !flags->nomount) { |
60a2434b | 3855 | renamed = fnvlist_alloc(); |
428870ff BB |
3856 | } |
3857 | ||
3858 | softerr = recv_incremental_replication(hdl, tofs, flags, | |
3859 | stream_nv, stream_avl, renamed); | |
3860 | ||
3861 | /* Unmount renamed filesystems before receiving. */ | |
3862 | while ((pair = nvlist_next_nvpair(renamed, | |
3863 | pair)) != NULL) { | |
3864 | zfs_handle_t *zhp; | |
3865 | prop_changelist_t *clp = NULL; | |
3866 | ||
3867 | zhp = zfs_open(hdl, nvpair_name(pair), | |
3868 | ZFS_TYPE_FILESYSTEM); | |
3869 | if (zhp != NULL) { | |
3870 | clp = changelist_gather(zhp, | |
a57d3d45 MZ |
3871 | ZFS_PROP_MOUNTPOINT, 0, |
3872 | flags->forceunmount ? MS_FORCE : 0); | |
428870ff BB |
3873 | zfs_close(zhp); |
3874 | if (clp != NULL) { | |
3875 | softerr |= | |
3876 | changelist_prefix(clp); | |
3877 | changelist_free(clp); | |
3878 | } | |
3879 | } | |
3880 | } | |
3881 | ||
60a2434b | 3882 | fnvlist_free(renamed); |
34dc7c2f BB |
3883 | } |
3884 | } | |
3885 | ||
428870ff BB |
3886 | /* |
3887 | * Get the fs specified by the first path in the stream (the top level | |
3888 | * specified by 'zfs send') and pass it to each invocation of | |
3889 | * zfs_receive_one(). | |
3890 | */ | |
3891 | (void) strlcpy(sendfs, drr->drr_u.drr_begin.drr_toname, | |
eca7b760 | 3892 | sizeof (sendfs)); |
671c9354 | 3893 | if ((cp = strchr(sendfs, '@')) != NULL) { |
428870ff | 3894 | *cp = '\0'; |
671c9354 DM |
3895 | /* |
3896 | * Find the "sendsnap", the final snapshot in a replication | |
3897 | * stream. zfs_receive_one() handles certain errors | |
3898 | * differently, depending on if the contained stream is the | |
3899 | * last one or not. | |
3900 | */ | |
3901 | sendsnap = (cp + 1); | |
3902 | } | |
34dc7c2f BB |
3903 | |
3904 | /* Finally, receive each contained stream */ | |
3905 | do { | |
3906 | /* | |
3907 | * we should figure out if it has a recoverable | |
3908 | * error, in which case do a recv_skip() and drive on. | |
3909 | * Note, if we fail due to already having this guid, | |
3910 | * zfs_receive_one() will take care of it (ie, | |
3911 | * recv_skip() and return 0). | |
3912 | */ | |
fcff0f35 | 3913 | error = zfs_receive_impl(hdl, destname, NULL, flags, fd, |
196bee4c | 3914 | sendfs, stream_nv, stream_avl, top_zfs, sendsnap, cmdprops); |
34dc7c2f BB |
3915 | if (error == ENODATA) { |
3916 | error = 0; | |
3917 | break; | |
3918 | } | |
3919 | anyerr |= error; | |
3920 | } while (error == 0); | |
3921 | ||
4c3c6b6c | 3922 | if (drr->drr_payloadlen != 0 && recursive && fromsnap != NULL) { |
34dc7c2f BB |
3923 | /* |
3924 | * Now that we have the fs's they sent us, try the | |
3925 | * renames again. | |
3926 | */ | |
3927 | softerr = recv_incremental_replication(hdl, tofs, flags, | |
428870ff | 3928 | stream_nv, stream_avl, NULL); |
34dc7c2f BB |
3929 | } |
3930 | ||
bb61cc31 TC |
3931 | if (raw && softerr == 0 && *top_zfs != NULL) { |
3932 | softerr = recv_fix_encryption_hierarchy(hdl, *top_zfs, | |
7633c0ae | 3933 | stream_nv); |
b5256303 TC |
3934 | } |
3935 | ||
34dc7c2f BB |
3936 | out: |
3937 | fsavl_destroy(stream_avl); | |
60a2434b | 3938 | fnvlist_free(stream_nv); |
34dc7c2f BB |
3939 | if (softerr) |
3940 | error = -2; | |
3941 | if (anyerr) | |
3942 | error = -1; | |
3943 | return (error); | |
3944 | } | |
3945 | ||
428870ff BB |
3946 | static void |
3947 | trunc_prop_errs(int truncated) | |
3948 | { | |
3949 | ASSERT(truncated != 0); | |
3950 | ||
3951 | if (truncated == 1) | |
3952 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
3953 | "1 more property could not be set\n")); | |
3954 | else | |
3955 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
3956 | "%d more properties could not be set\n"), truncated); | |
3957 | } | |
3958 | ||
34dc7c2f BB |
3959 | static int |
3960 | recv_skip(libzfs_handle_t *hdl, int fd, boolean_t byteswap) | |
3961 | { | |
3962 | dmu_replay_record_t *drr; | |
f1512ee6 | 3963 | void *buf = zfs_alloc(hdl, SPA_MAXBLOCKSIZE); |
870e7a52 | 3964 | uint64_t payload_size; |
d68a2bfa | 3965 | char errbuf[ERRBUFLEN]; |
428870ff BB |
3966 | |
3967 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
870e7a52 | 3968 | "cannot receive")); |
34dc7c2f BB |
3969 | |
3970 | /* XXX would be great to use lseek if possible... */ | |
3971 | drr = buf; | |
3972 | ||
3973 | while (recv_read(hdl, fd, drr, sizeof (dmu_replay_record_t), | |
3974 | byteswap, NULL) == 0) { | |
3975 | if (byteswap) | |
3976 | drr->drr_type = BSWAP_32(drr->drr_type); | |
3977 | ||
3978 | switch (drr->drr_type) { | |
3979 | case DRR_BEGIN: | |
428870ff | 3980 | if (drr->drr_payloadlen != 0) { |
47dfff3b MA |
3981 | (void) recv_read(hdl, fd, buf, |
3982 | drr->drr_payloadlen, B_FALSE, NULL); | |
428870ff | 3983 | } |
34dc7c2f BB |
3984 | break; |
3985 | ||
3986 | case DRR_END: | |
3987 | free(buf); | |
3988 | return (0); | |
3989 | ||
3990 | case DRR_OBJECT: | |
3991 | if (byteswap) { | |
3992 | drr->drr_u.drr_object.drr_bonuslen = | |
3993 | BSWAP_32(drr->drr_u.drr_object. | |
3994 | drr_bonuslen); | |
870e7a52 TC |
3995 | drr->drr_u.drr_object.drr_raw_bonuslen = |
3996 | BSWAP_32(drr->drr_u.drr_object. | |
3997 | drr_raw_bonuslen); | |
34dc7c2f | 3998 | } |
870e7a52 TC |
3999 | |
4000 | payload_size = | |
4001 | DRR_OBJECT_PAYLOAD_SIZE(&drr->drr_u.drr_object); | |
4002 | (void) recv_read(hdl, fd, buf, payload_size, | |
34dc7c2f BB |
4003 | B_FALSE, NULL); |
4004 | break; | |
4005 | ||
4006 | case DRR_WRITE: | |
4007 | if (byteswap) { | |
2aa34383 DK |
4008 | drr->drr_u.drr_write.drr_logical_size = |
4009 | BSWAP_64( | |
4010 | drr->drr_u.drr_write.drr_logical_size); | |
4011 | drr->drr_u.drr_write.drr_compressed_size = | |
4012 | BSWAP_64( | |
4013 | drr->drr_u.drr_write.drr_compressed_size); | |
34dc7c2f | 4014 | } |
870e7a52 | 4015 | payload_size = |
2aa34383 | 4016 | DRR_WRITE_PAYLOAD_SIZE(&drr->drr_u.drr_write); |
7a6c12fd | 4017 | assert(payload_size <= SPA_MAXBLOCKSIZE); |
34dc7c2f | 4018 | (void) recv_read(hdl, fd, buf, |
2aa34383 | 4019 | payload_size, B_FALSE, NULL); |
34dc7c2f | 4020 | break; |
428870ff BB |
4021 | case DRR_SPILL: |
4022 | if (byteswap) { | |
9f8026c8 | 4023 | drr->drr_u.drr_spill.drr_length = |
428870ff | 4024 | BSWAP_64(drr->drr_u.drr_spill.drr_length); |
870e7a52 TC |
4025 | drr->drr_u.drr_spill.drr_compressed_size = |
4026 | BSWAP_64(drr->drr_u.drr_spill. | |
4027 | drr_compressed_size); | |
428870ff | 4028 | } |
870e7a52 TC |
4029 | |
4030 | payload_size = | |
4031 | DRR_SPILL_PAYLOAD_SIZE(&drr->drr_u.drr_spill); | |
4032 | (void) recv_read(hdl, fd, buf, payload_size, | |
4033 | B_FALSE, NULL); | |
428870ff | 4034 | break; |
9b67f605 MA |
4035 | case DRR_WRITE_EMBEDDED: |
4036 | if (byteswap) { | |
4037 | drr->drr_u.drr_write_embedded.drr_psize = | |
4038 | BSWAP_32(drr->drr_u.drr_write_embedded. | |
4039 | drr_psize); | |
4040 | } | |
4041 | (void) recv_read(hdl, fd, buf, | |
4042 | P2ROUNDUP(drr->drr_u.drr_write_embedded.drr_psize, | |
4043 | 8), B_FALSE, NULL); | |
4044 | break; | |
30af21b0 | 4045 | case DRR_OBJECT_RANGE: |
428870ff | 4046 | case DRR_WRITE_BYREF: |
34dc7c2f BB |
4047 | case DRR_FREEOBJECTS: |
4048 | case DRR_FREE: | |
4049 | break; | |
4050 | ||
4051 | default: | |
428870ff BB |
4052 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4053 | "invalid record type")); | |
fad5fb01 | 4054 | free(buf); |
428870ff | 4055 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); |
34dc7c2f BB |
4056 | } |
4057 | } | |
4058 | ||
4059 | free(buf); | |
4060 | return (-1); | |
4061 | } | |
4062 | ||
47dfff3b MA |
4063 | static void |
4064 | recv_ecksum_set_aux(libzfs_handle_t *hdl, const char *target_snap, | |
7145123b | 4065 | boolean_t resumable, boolean_t checksum) |
47dfff3b | 4066 | { |
eca7b760 | 4067 | char target_fs[ZFS_MAX_DATASET_NAME_LEN]; |
47dfff3b | 4068 | |
7145123b PD |
4069 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, (checksum ? |
4070 | "checksum mismatch" : "incomplete stream"))); | |
47dfff3b MA |
4071 | |
4072 | if (!resumable) | |
4073 | return; | |
4074 | (void) strlcpy(target_fs, target_snap, sizeof (target_fs)); | |
4075 | *strchr(target_fs, '@') = '\0'; | |
4076 | zfs_handle_t *zhp = zfs_open(hdl, target_fs, | |
4077 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
4078 | if (zhp == NULL) | |
4079 | return; | |
4080 | ||
4081 | char token_buf[ZFS_MAXPROPLEN]; | |
4082 | int error = zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, | |
4083 | token_buf, sizeof (token_buf), | |
4084 | NULL, NULL, 0, B_TRUE); | |
4085 | if (error == 0) { | |
4086 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4087 | "checksum mismatch or incomplete stream.\n" | |
4088 | "Partially received snapshot is saved.\n" | |
4089 | "A resuming stream can be generated on the sending " | |
4090 | "system by running:\n" | |
4091 | " zfs send -t %s"), | |
4092 | token_buf); | |
4093 | } | |
4094 | zfs_close(zhp); | |
4095 | } | |
4096 | ||
a3eeab2d | 4097 | /* |
4098 | * Prepare a new nvlist of properties that are to override (-o) or be excluded | |
4099 | * (-x) from the received dataset | |
4100 | * recvprops: received properties from the send stream | |
4101 | * cmdprops: raw input properties from command line | |
4102 | * origprops: properties, both locally-set and received, currently set on the | |
4103 | * target dataset if it exists, NULL otherwise. | |
4104 | * oxprops: valid output override (-o) and excluded (-x) properties | |
4105 | */ | |
4106 | static int | |
d9c460a0 TC |
4107 | zfs_setup_cmdline_props(libzfs_handle_t *hdl, zfs_type_t type, |
4108 | char *fsname, boolean_t zoned, boolean_t recursive, boolean_t newfs, | |
4109 | boolean_t raw, boolean_t toplevel, nvlist_t *recvprops, nvlist_t *cmdprops, | |
4110 | nvlist_t *origprops, nvlist_t **oxprops, uint8_t **wkeydata_out, | |
4111 | uint_t *wkeylen_out, const char *errbuf) | |
a3eeab2d | 4112 | { |
4113 | nvpair_t *nvp; | |
4114 | nvlist_t *oprops, *voprops; | |
4115 | zfs_handle_t *zhp = NULL; | |
4116 | zpool_handle_t *zpool_hdl = NULL; | |
d9c460a0 | 4117 | char *cp; |
a3eeab2d | 4118 | int ret = 0; |
d9c460a0 | 4119 | char namebuf[ZFS_MAX_DATASET_NAME_LEN]; |
a3eeab2d | 4120 | |
4121 | if (nvlist_empty(cmdprops)) | |
4122 | return (0); /* No properties to override or exclude */ | |
4123 | ||
4124 | *oxprops = fnvlist_alloc(); | |
4125 | oprops = fnvlist_alloc(); | |
4126 | ||
d9c460a0 TC |
4127 | strlcpy(namebuf, fsname, ZFS_MAX_DATASET_NAME_LEN); |
4128 | ||
4129 | /* | |
4130 | * Get our dataset handle. The target dataset may not exist yet. | |
4131 | */ | |
4132 | if (zfs_dataset_exists(hdl, namebuf, ZFS_TYPE_DATASET)) { | |
4133 | zhp = zfs_open(hdl, namebuf, ZFS_TYPE_DATASET); | |
4134 | if (zhp == NULL) { | |
4135 | ret = -1; | |
4136 | goto error; | |
4137 | } | |
4138 | } | |
4139 | ||
4140 | /* open the zpool handle */ | |
4141 | cp = strchr(namebuf, '/'); | |
4142 | if (cp != NULL) | |
4143 | *cp = '\0'; | |
4144 | zpool_hdl = zpool_open(hdl, namebuf); | |
4145 | if (zpool_hdl == NULL) { | |
4146 | ret = -1; | |
4147 | goto error; | |
4148 | } | |
4149 | ||
4150 | /* restore namebuf to match fsname for later use */ | |
4151 | if (cp != NULL) | |
4152 | *cp = '/'; | |
4153 | ||
a3eeab2d | 4154 | /* |
4155 | * first iteration: process excluded (-x) properties now and gather | |
4156 | * added (-o) properties to be later processed by zfs_valid_proplist() | |
4157 | */ | |
4158 | nvp = NULL; | |
4159 | while ((nvp = nvlist_next_nvpair(cmdprops, nvp)) != NULL) { | |
4160 | const char *name = nvpair_name(nvp); | |
4161 | zfs_prop_t prop = zfs_name_to_prop(name); | |
4162 | ||
4476ccd9 RE |
4163 | /* |
4164 | * It turns out, if we don't normalize "aliased" names | |
4165 | * e.g. compress= against the "real" names (e.g. compression) | |
4166 | * here, then setting/excluding them does not work as | |
4167 | * intended. | |
4168 | * | |
4169 | * But since user-defined properties wouldn't have a valid | |
4170 | * mapping here, we do this conditional dance. | |
4171 | */ | |
4172 | const char *newname = name; | |
4173 | if (prop >= ZFS_PROP_TYPE) | |
4174 | newname = zfs_prop_to_name(prop); | |
4175 | ||
a3eeab2d | 4176 | /* "origin" is processed separately, don't handle it here */ |
4177 | if (prop == ZFS_PROP_ORIGIN) | |
4178 | continue; | |
4179 | ||
d9c460a0 TC |
4180 | /* raw streams can't override encryption properties */ |
4181 | if ((zfs_prop_encryption_key_param(prop) || | |
b4238327 | 4182 | prop == ZFS_PROP_ENCRYPTION) && raw) { |
d9c460a0 TC |
4183 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4184 | "encryption property '%s' cannot " | |
b4238327 TC |
4185 | "be set or excluded for raw streams."), name); |
4186 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); | |
4187 | goto error; | |
4188 | } | |
4189 | ||
9be34ec9 AH |
4190 | /* |
4191 | * For plain replicated send, we can ignore encryption | |
4192 | * properties other than first stream | |
4193 | */ | |
4194 | if ((zfs_prop_encryption_key_param(prop) || prop == | |
4195 | ZFS_PROP_ENCRYPTION) && !newfs && recursive && !raw) { | |
4196 | continue; | |
4197 | } | |
4198 | ||
b4238327 TC |
4199 | /* incremental streams can only exclude encryption properties */ |
4200 | if ((zfs_prop_encryption_key_param(prop) || | |
4201 | prop == ZFS_PROP_ENCRYPTION) && !newfs && | |
4202 | nvpair_type(nvp) != DATA_TYPE_BOOLEAN) { | |
4203 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4204 | "encryption property '%s' cannot " | |
4205 | "be set for incremental streams."), name); | |
d9c460a0 TC |
4206 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); |
4207 | goto error; | |
4208 | } | |
4209 | ||
a3eeab2d | 4210 | switch (nvpair_type(nvp)) { |
4211 | case DATA_TYPE_BOOLEAN: /* -x property */ | |
4212 | /* | |
4213 | * DATA_TYPE_BOOLEAN is the way we're asked to "exclude" | |
4214 | * a property: this is done by forcing an explicit | |
4215 | * inherit on the destination so the effective value is | |
4216 | * not the one we received from the send stream. | |
b0269cd8 I |
4217 | */ |
4218 | if (!zfs_prop_valid_for_type(prop, type, B_FALSE) && | |
4219 | !zfs_prop_user(name)) { | |
4220 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, | |
4221 | "Warning: %s: property '%s' does not " | |
4222 | "apply to datasets of this type\n"), | |
4223 | fsname, name); | |
4224 | continue; | |
4225 | } | |
4226 | /* | |
a3eeab2d | 4227 | * We do this only if the property is not already |
4228 | * locally-set, in which case its value will take | |
4229 | * priority over the received anyway. | |
4230 | */ | |
4476ccd9 | 4231 | if (nvlist_exists(origprops, newname)) { |
a3eeab2d | 4232 | nvlist_t *attrs; |
d1807f16 | 4233 | const char *source = NULL; |
a3eeab2d | 4234 | |
4476ccd9 RE |
4235 | attrs = fnvlist_lookup_nvlist(origprops, |
4236 | newname); | |
b4238327 TC |
4237 | if (nvlist_lookup_string(attrs, |
4238 | ZPROP_SOURCE, &source) == 0 && | |
4239 | strcmp(source, ZPROP_SOURCE_VAL_RECVD) != 0) | |
a3eeab2d | 4240 | continue; |
4241 | } | |
4242 | /* | |
4243 | * We can't force an explicit inherit on non-inheritable | |
4244 | * properties: if we're asked to exclude this kind of | |
4245 | * values we remove them from "recvprops" input nvlist. | |
4246 | */ | |
63652e15 DS |
4247 | if (!zfs_prop_user(name) && /* can be inherited too */ |
4248 | !zfs_prop_inheritable(prop) && | |
4476ccd9 RE |
4249 | nvlist_exists(recvprops, newname)) |
4250 | fnvlist_remove(recvprops, newname); | |
a3eeab2d | 4251 | else |
4476ccd9 | 4252 | fnvlist_add_boolean(*oxprops, newname); |
a3eeab2d | 4253 | break; |
4254 | case DATA_TYPE_STRING: /* -o property=value */ | |
b0269cd8 I |
4255 | /* |
4256 | * we're trying to override a property that does not | |
4257 | * make sense for this type of dataset, but we don't | |
4258 | * want to fail if the receive is recursive: this comes | |
4259 | * in handy when the send stream contains, for | |
4260 | * instance, a child ZVOL and we're trying to receive | |
4261 | * it with "-o atime=on" | |
4262 | */ | |
4263 | if (!zfs_prop_valid_for_type(prop, type, B_FALSE) && | |
4264 | !zfs_prop_user(name)) { | |
4265 | if (recursive) | |
4266 | continue; | |
4267 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4268 | "property '%s' does not apply to datasets " | |
4269 | "of this type"), name); | |
4270 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); | |
4271 | goto error; | |
4272 | } | |
4476ccd9 RE |
4273 | fnvlist_add_string(oprops, newname, |
4274 | fnvpair_value_string(nvp)); | |
a3eeab2d | 4275 | break; |
4276 | default: | |
4277 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4278 | "property '%s' must be a string or boolean"), name); | |
4279 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); | |
4280 | goto error; | |
4281 | } | |
4282 | } | |
4283 | ||
4284 | if (toplevel) { | |
4285 | /* convert override strings properties to native */ | |
4286 | if ((voprops = zfs_valid_proplist(hdl, ZFS_TYPE_DATASET, | |
b5256303 | 4287 | oprops, zoned, zhp, zpool_hdl, B_FALSE, errbuf)) == NULL) { |
a3eeab2d | 4288 | ret = zfs_error(hdl, EZFS_BADPROP, errbuf); |
4289 | goto error; | |
4290 | } | |
4291 | ||
d9c460a0 TC |
4292 | /* |
4293 | * zfs_crypto_create() requires the parent name. Get it | |
4294 | * by truncating the fsname copy stored in namebuf. | |
4295 | */ | |
4296 | cp = strrchr(namebuf, '/'); | |
4297 | if (cp != NULL) | |
4298 | *cp = '\0'; | |
4299 | ||
9be34ec9 AH |
4300 | if (!raw && !(!newfs && recursive) && |
4301 | zfs_crypto_create(hdl, namebuf, voprops, NULL, | |
d9c460a0 TC |
4302 | B_FALSE, wkeydata_out, wkeylen_out) != 0) { |
4303 | fnvlist_free(voprops); | |
4304 | ret = zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf); | |
4305 | goto error; | |
4306 | } | |
4307 | ||
a3eeab2d | 4308 | /* second pass: process "-o" properties */ |
4309 | fnvlist_merge(*oxprops, voprops); | |
4310 | fnvlist_free(voprops); | |
4311 | } else { | |
4312 | /* override props on child dataset are inherited */ | |
4313 | nvp = NULL; | |
4314 | while ((nvp = nvlist_next_nvpair(oprops, nvp)) != NULL) { | |
4315 | const char *name = nvpair_name(nvp); | |
4316 | fnvlist_add_boolean(*oxprops, name); | |
4317 | } | |
4318 | } | |
4319 | ||
4320 | error: | |
d9c460a0 TC |
4321 | if (zhp != NULL) |
4322 | zfs_close(zhp); | |
4323 | if (zpool_hdl != NULL) | |
4324 | zpool_close(zpool_hdl); | |
a3eeab2d | 4325 | fnvlist_free(oprops); |
4326 | return (ret); | |
4327 | } | |
4328 | ||
34dc7c2f BB |
4329 | /* |
4330 | * Restores a backup of tosnap from the file descriptor specified by infd. | |
4331 | */ | |
4332 | static int | |
4333 | zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap, | |
fcff0f35 PD |
4334 | const char *originsnap, recvflags_t *flags, dmu_replay_record_t *drr, |
4335 | dmu_replay_record_t *drr_noswap, const char *sendfs, nvlist_t *stream_nv, | |
196bee4c MA |
4336 | avl_tree_t *stream_avl, char **top_zfs, |
4337 | const char *finalsnap, nvlist_t *cmdprops) | |
34dc7c2f | 4338 | { |
67de71e6 | 4339 | struct timespec begin_time; |
428870ff | 4340 | int ioctl_err, ioctl_errno, err; |
34dc7c2f BB |
4341 | char *cp; |
4342 | struct drr_begin *drrb = &drr->drr_u.drr_begin; | |
d68a2bfa | 4343 | char errbuf[ERRBUFLEN]; |
428870ff | 4344 | const char *chopprefix; |
34dc7c2f | 4345 | boolean_t newfs = B_FALSE; |
a132c2b4 | 4346 | boolean_t stream_wantsnewfs, stream_resumingnewfs; |
43e52edd BB |
4347 | boolean_t newprops = B_FALSE; |
4348 | uint64_t read_bytes = 0; | |
4349 | uint64_t errflags = 0; | |
34dc7c2f BB |
4350 | uint64_t parent_snapguid = 0; |
4351 | prop_changelist_t *clp = NULL; | |
b128c09f | 4352 | nvlist_t *snapprops_nvlist = NULL; |
9c5e88b1 | 4353 | nvlist_t *snapholds_nvlist = NULL; |
428870ff | 4354 | zprop_errflags_t prop_errflags; |
43e52edd | 4355 | nvlist_t *prop_errors = NULL; |
428870ff | 4356 | boolean_t recursive; |
d1807f16 | 4357 | const char *snapname = NULL; |
43e52edd | 4358 | char destsnap[MAXPATHLEN * 2]; |
861166b0 | 4359 | char origin[MAXNAMELEN] = {0}; |
43e52edd | 4360 | char name[MAXPATHLEN]; |
861166b0 | 4361 | char tmp_keylocation[MAXNAMELEN] = {0}; |
a3eeab2d | 4362 | nvlist_t *rcvprops = NULL; /* props received from the send stream */ |
4363 | nvlist_t *oxprops = NULL; /* override (-o) and exclude (-x) props */ | |
4364 | nvlist_t *origprops = NULL; /* original props (if destination exists) */ | |
806739f9 | 4365 | zfs_type_t type = ZFS_TYPE_INVALID; |
bee7e4ff | 4366 | boolean_t toplevel = B_FALSE; |
a3eeab2d | 4367 | boolean_t zoned = B_FALSE; |
c03f0470 | 4368 | boolean_t hastoken = B_FALSE; |
30af21b0 | 4369 | boolean_t redacted; |
d9c460a0 TC |
4370 | uint8_t *wkeydata = NULL; |
4371 | uint_t wkeylen = 0; | |
34dc7c2f | 4372 | |
67de71e6 AZ |
4373 | #ifndef CLOCK_MONOTONIC_RAW |
4374 | #define CLOCK_MONOTONIC_RAW CLOCK_MONOTONIC | |
4375 | #endif | |
4376 | clock_gettime(CLOCK_MONOTONIC_RAW, &begin_time); | |
34dc7c2f BB |
4377 | |
4378 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4379 | "cannot receive")); | |
4380 | ||
428870ff BB |
4381 | recursive = (nvlist_lookup_boolean(stream_nv, "not_recursive") == |
4382 | ENOENT); | |
4383 | ||
9c5e88b1 PZ |
4384 | /* Did the user request holds be skipped via zfs recv -k? */ |
4385 | boolean_t holds = flags->holds && !flags->skipholds; | |
4386 | ||
34dc7c2f | 4387 | if (stream_avl != NULL) { |
d1807f16 | 4388 | const char *keylocation = NULL; |
48f783de | 4389 | nvlist_t *lookup = NULL; |
b128c09f BB |
4390 | nvlist_t *fs = fsavl_find(stream_avl, drrb->drr_toguid, |
4391 | &snapname); | |
34dc7c2f BB |
4392 | |
4393 | (void) nvlist_lookup_uint64(fs, "parentfromsnap", | |
4394 | &parent_snapguid); | |
a3eeab2d | 4395 | err = nvlist_lookup_nvlist(fs, "props", &rcvprops); |
43e52edd | 4396 | if (err) { |
60a2434b | 4397 | rcvprops = fnvlist_alloc(); |
43e52edd BB |
4398 | newprops = B_TRUE; |
4399 | } | |
34dc7c2f | 4400 | |
b5256303 TC |
4401 | /* |
4402 | * The keylocation property may only be set on encryption roots, | |
4403 | * but this dataset might not become an encryption root until | |
83472fab | 4404 | * recv_fix_encryption_hierarchy() is called. That function |
b5256303 TC |
4405 | * will fixup the keylocation anyway, so we temporarily unset |
4406 | * the keylocation for now to avoid any errors from the receive | |
4407 | * ioctl. | |
4408 | */ | |
4409 | err = nvlist_lookup_string(rcvprops, | |
4410 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), &keylocation); | |
4411 | if (err == 0) { | |
a51288aa | 4412 | strlcpy(tmp_keylocation, keylocation, MAXNAMELEN); |
b5256303 TC |
4413 | (void) nvlist_remove_all(rcvprops, |
4414 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION)); | |
4415 | } | |
4416 | ||
330d06f9 | 4417 | if (flags->canmountoff) { |
60a2434b RM |
4418 | fnvlist_add_uint64(rcvprops, |
4419 | zfs_prop_to_name(ZFS_PROP_CANMOUNT), 0); | |
9c5e88b1 | 4420 | } else if (newprops) { /* nothing in rcvprops, eliminate it */ |
60a2434b | 4421 | fnvlist_free(rcvprops); |
9c5e88b1 PZ |
4422 | rcvprops = NULL; |
4423 | newprops = B_FALSE; | |
34dc7c2f | 4424 | } |
48f783de | 4425 | if (0 == nvlist_lookup_nvlist(fs, "snapprops", &lookup)) { |
60a2434b RM |
4426 | snapprops_nvlist = fnvlist_lookup_nvlist(lookup, |
4427 | snapname); | |
48f783de | 4428 | } |
9c5e88b1 PZ |
4429 | if (holds) { |
4430 | if (0 == nvlist_lookup_nvlist(fs, "snapholds", | |
4431 | &lookup)) { | |
60a2434b RM |
4432 | snapholds_nvlist = fnvlist_lookup_nvlist( |
4433 | lookup, snapname); | |
9c5e88b1 PZ |
4434 | } |
4435 | } | |
34dc7c2f BB |
4436 | } |
4437 | ||
428870ff BB |
4438 | cp = NULL; |
4439 | ||
34dc7c2f BB |
4440 | /* |
4441 | * Determine how much of the snapshot name stored in the stream | |
4442 | * we are going to tack on to the name they specified on the | |
4443 | * command line, and how much we are going to chop off. | |
4444 | * | |
4445 | * If they specified a snapshot, chop the entire name stored in | |
4446 | * the stream. | |
4447 | */ | |
330d06f9 | 4448 | if (flags->istail) { |
428870ff BB |
4449 | /* |
4450 | * A filesystem was specified with -e. We want to tack on only | |
4451 | * the tail of the sent snapshot path. | |
4452 | */ | |
4453 | if (strchr(tosnap, '@')) { | |
4454 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
4455 | "argument - snapshot not allowed with -e")); | |
43e52edd BB |
4456 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); |
4457 | goto out; | |
428870ff BB |
4458 | } |
4459 | ||
4460 | chopprefix = strrchr(sendfs, '/'); | |
4461 | ||
4462 | if (chopprefix == NULL) { | |
4463 | /* | |
4464 | * The tail is the poolname, so we need to | |
4465 | * prepend a path separator. | |
4466 | */ | |
4467 | int len = strlen(drrb->drr_toname); | |
72c99dc9 | 4468 | cp = umem_alloc(len + 2, UMEM_NOFAIL); |
428870ff BB |
4469 | cp[0] = '/'; |
4470 | (void) strcpy(&cp[1], drrb->drr_toname); | |
4471 | chopprefix = cp; | |
4472 | } else { | |
4473 | chopprefix = drrb->drr_toname + (chopprefix - sendfs); | |
4474 | } | |
330d06f9 | 4475 | } else if (flags->isprefix) { |
34dc7c2f | 4476 | /* |
428870ff BB |
4477 | * A filesystem was specified with -d. We want to tack on |
4478 | * everything but the first element of the sent snapshot path | |
4479 | * (all but the pool name). | |
34dc7c2f BB |
4480 | */ |
4481 | if (strchr(tosnap, '@')) { | |
4482 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
4483 | "argument - snapshot not allowed with -d")); | |
43e52edd BB |
4484 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); |
4485 | goto out; | |
34dc7c2f | 4486 | } |
428870ff BB |
4487 | |
4488 | chopprefix = strchr(drrb->drr_toname, '/'); | |
4489 | if (chopprefix == NULL) | |
4490 | chopprefix = strchr(drrb->drr_toname, '@'); | |
34dc7c2f BB |
4491 | } else if (strchr(tosnap, '@') == NULL) { |
4492 | /* | |
428870ff BB |
4493 | * If a filesystem was specified without -d or -e, we want to |
4494 | * tack on everything after the fs specified by 'zfs send'. | |
34dc7c2f | 4495 | */ |
428870ff BB |
4496 | chopprefix = drrb->drr_toname + strlen(sendfs); |
4497 | } else { | |
4498 | /* A snapshot was specified as an exact path (no -d or -e). */ | |
4499 | if (recursive) { | |
4500 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4501 | "cannot specify snapshot name for multi-snapshot " | |
4502 | "stream")); | |
43e52edd BB |
4503 | err = zfs_error(hdl, EZFS_BADSTREAM, errbuf); |
4504 | goto out; | |
428870ff BB |
4505 | } |
4506 | chopprefix = drrb->drr_toname + strlen(drrb->drr_toname); | |
34dc7c2f | 4507 | } |
428870ff BB |
4508 | |
4509 | ASSERT(strstr(drrb->drr_toname, sendfs) == drrb->drr_toname); | |
bdbd5477 | 4510 | ASSERT(chopprefix > drrb->drr_toname || strchr(sendfs, '/') == NULL); |
4511 | ASSERT(chopprefix <= drrb->drr_toname + strlen(drrb->drr_toname) || | |
4512 | strchr(sendfs, '/') == NULL); | |
428870ff BB |
4513 | ASSERT(chopprefix[0] == '/' || chopprefix[0] == '@' || |
4514 | chopprefix[0] == '\0'); | |
34dc7c2f BB |
4515 | |
4516 | /* | |
43e52edd | 4517 | * Determine name of destination snapshot. |
34dc7c2f | 4518 | */ |
45cb520b | 4519 | (void) strlcpy(destsnap, tosnap, sizeof (destsnap)); |
43e52edd | 4520 | (void) strlcat(destsnap, chopprefix, sizeof (destsnap)); |
72c99dc9 RY |
4521 | if (cp != NULL) |
4522 | umem_free(cp, strlen(cp) + 1); | |
43e52edd BB |
4523 | if (!zfs_name_valid(destsnap, ZFS_TYPE_SNAPSHOT)) { |
4524 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); | |
4525 | goto out; | |
34dc7c2f BB |
4526 | } |
4527 | ||
4528 | /* | |
43e52edd | 4529 | * Determine the name of the origin snapshot. |
34dc7c2f | 4530 | */ |
160af771 | 4531 | if (originsnap) { |
21a4f5cc | 4532 | (void) strlcpy(origin, originsnap, sizeof (origin)); |
160af771 GM |
4533 | if (flags->verbose) |
4534 | (void) printf("using provided clone origin %s\n", | |
4535 | origin); | |
4536 | } else if (drrb->drr_flags & DRR_FLAG_CLONE) { | |
43e52edd BB |
4537 | if (guid_to_name(hdl, destsnap, |
4538 | drrb->drr_fromguid, B_FALSE, origin) != 0) { | |
34dc7c2f BB |
4539 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4540 | "local origin for clone %s does not exist"), | |
43e52edd BB |
4541 | destsnap); |
4542 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4543 | goto out; | |
34dc7c2f | 4544 | } |
330d06f9 | 4545 | if (flags->verbose) |
43e52edd | 4546 | (void) printf("found clone origin %s\n", origin); |
34dc7c2f BB |
4547 | } |
4548 | ||
196bee4c | 4549 | if ((DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
652bdc9b MA |
4550 | DMU_BACKUP_FEATURE_DEDUP)) { |
4551 | (void) fprintf(stderr, | |
196bee4c MA |
4552 | gettext("ERROR: \"zfs receive\" no longer supports " |
4553 | "deduplicated send streams. Use\n" | |
4554 | "the \"zstream redup\" command to convert this stream " | |
4555 | "to a regular,\n" | |
4556 | "non-deduplicated stream.\n")); | |
4557 | err = zfs_error(hdl, EZFS_NOTSUP, errbuf); | |
4558 | goto out; | |
652bdc9b MA |
4559 | } |
4560 | ||
47dfff3b MA |
4561 | boolean_t resuming = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4562 | DMU_BACKUP_FEATURE_RESUMING; | |
b5256303 TC |
4563 | boolean_t raw = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4564 | DMU_BACKUP_FEATURE_RAW; | |
9b840763 TC |
4565 | boolean_t embedded = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4566 | DMU_BACKUP_FEATURE_EMBED_DATA; | |
b8864a23 | 4567 | stream_wantsnewfs = (drrb->drr_fromguid == 0 || |
47dfff3b | 4568 | (drrb->drr_flags & DRR_FLAG_CLONE) || originsnap) && !resuming; |
a132c2b4 AS |
4569 | stream_resumingnewfs = (drrb->drr_fromguid == 0 || |
4570 | (drrb->drr_flags & DRR_FLAG_CLONE) || originsnap) && resuming; | |
34dc7c2f BB |
4571 | |
4572 | if (stream_wantsnewfs) { | |
4573 | /* | |
4574 | * if the parent fs does not exist, look for it based on | |
4575 | * the parent snap GUID | |
4576 | */ | |
4577 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
4578 | "cannot receive new filesystem stream")); | |
4579 | ||
a51288aa | 4580 | (void) strlcpy(name, destsnap, sizeof (name)); |
43e52edd | 4581 | cp = strrchr(name, '/'); |
34dc7c2f BB |
4582 | if (cp) |
4583 | *cp = '\0'; | |
4584 | if (cp && | |
43e52edd | 4585 | !zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) { |
eca7b760 | 4586 | char suffix[ZFS_MAX_DATASET_NAME_LEN]; |
a51288aa RY |
4587 | (void) strlcpy(suffix, strrchr(destsnap, '/'), |
4588 | sizeof (suffix)); | |
43e52edd BB |
4589 | if (guid_to_name(hdl, name, parent_snapguid, |
4590 | B_FALSE, destsnap) == 0) { | |
4591 | *strchr(destsnap, '@') = '\0'; | |
a51288aa | 4592 | (void) strlcat(destsnap, suffix, |
ab672133 | 4593 | sizeof (destsnap)); |
34dc7c2f BB |
4594 | } |
4595 | } | |
4596 | } else { | |
4597 | /* | |
ebeb6f23 AG |
4598 | * If the fs does not exist, look for it based on the |
4599 | * fromsnap GUID. | |
34dc7c2f | 4600 | */ |
ebeb6f23 AG |
4601 | if (resuming) { |
4602 | (void) snprintf(errbuf, sizeof (errbuf), | |
4603 | dgettext(TEXT_DOMAIN, | |
4604 | "cannot receive resume stream")); | |
4605 | } else { | |
4606 | (void) snprintf(errbuf, sizeof (errbuf), | |
4607 | dgettext(TEXT_DOMAIN, | |
4608 | "cannot receive incremental stream")); | |
4609 | } | |
34dc7c2f | 4610 | |
a51288aa | 4611 | (void) strlcpy(name, destsnap, sizeof (name)); |
43e52edd | 4612 | *strchr(name, '@') = '\0'; |
34dc7c2f | 4613 | |
428870ff BB |
4614 | /* |
4615 | * If the exact receive path was specified and this is the | |
4616 | * topmost path in the stream, then if the fs does not exist we | |
4617 | * should look no further. | |
4618 | */ | |
330d06f9 | 4619 | if ((flags->isprefix || (*(chopprefix = drrb->drr_toname + |
428870ff | 4620 | strlen(sendfs)) != '\0' && *chopprefix != '@')) && |
43e52edd | 4621 | !zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) { |
eca7b760 | 4622 | char snap[ZFS_MAX_DATASET_NAME_LEN]; |
a51288aa RY |
4623 | (void) strlcpy(snap, strchr(destsnap, '@'), |
4624 | sizeof (snap)); | |
43e52edd BB |
4625 | if (guid_to_name(hdl, name, drrb->drr_fromguid, |
4626 | B_FALSE, destsnap) == 0) { | |
4627 | *strchr(destsnap, '@') = '\0'; | |
a51288aa | 4628 | (void) strlcat(destsnap, snap, |
ab672133 | 4629 | sizeof (destsnap)); |
34dc7c2f BB |
4630 | } |
4631 | } | |
4632 | } | |
4633 | ||
a51288aa | 4634 | (void) strlcpy(name, destsnap, sizeof (name)); |
43e52edd | 4635 | *strchr(name, '@') = '\0'; |
34dc7c2f | 4636 | |
30af21b0 PD |
4637 | redacted = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo) & |
4638 | DMU_BACKUP_FEATURE_REDACTED; | |
4639 | ||
e8cf3a4f AP |
4640 | if (flags->heal) { |
4641 | if (flags->isprefix || flags->istail || flags->force || | |
4642 | flags->canmountoff || flags->resumable || flags->nomount || | |
4643 | flags->skipholds) { | |
4644 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4645 | "corrective recv can not be used when combined with" | |
4646 | " this flag")); | |
4647 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); | |
4648 | goto out; | |
4649 | } | |
4650 | uint64_t guid = | |
4651 | get_snap_guid(hdl, name, strchr(destsnap, '@') + 1); | |
4652 | if (guid == 0) { | |
4653 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4654 | "corrective recv must specify an existing snapshot" | |
4655 | " to heal")); | |
4656 | err = zfs_error(hdl, EZFS_INVALIDNAME, errbuf); | |
4657 | goto out; | |
4658 | } else if (guid != drrb->drr_toguid) { | |
4659 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4660 | "local snapshot doesn't match the snapshot" | |
4661 | " in the provided stream")); | |
4662 | err = zfs_error(hdl, EZFS_WRONG_PARENT, errbuf); | |
4663 | goto out; | |
4664 | } | |
4665 | } else if (zfs_dataset_exists(hdl, name, ZFS_TYPE_DATASET)) { | |
43e52edd | 4666 | zfs_cmd_t zc = {"\0"}; |
e8cf3a4f | 4667 | zfs_handle_t *zhp = NULL; |
4a385862 | 4668 | boolean_t encrypted; |
428870ff | 4669 | |
43e52edd BB |
4670 | (void) strcpy(zc.zc_name, name); |
4671 | ||
34dc7c2f | 4672 | /* |
47dfff3b MA |
4673 | * Destination fs exists. It must be one of these cases: |
4674 | * - an incremental send stream | |
4675 | * - the stream specifies a new fs (full stream or clone) | |
4676 | * and they want us to blow away the existing fs (and | |
4677 | * have therefore specified -F and removed any snapshots) | |
4678 | * - we are resuming a failed receive. | |
34dc7c2f | 4679 | */ |
34dc7c2f | 4680 | if (stream_wantsnewfs) { |
d8d418ff | 4681 | boolean_t is_volume = drrb->drr_type == DMU_OST_ZVOL; |
330d06f9 | 4682 | if (!flags->force) { |
34dc7c2f BB |
4683 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4684 | "destination '%s' exists\n" | |
43e52edd BB |
4685 | "must specify -F to overwrite it"), name); |
4686 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
4687 | goto out; | |
34dc7c2f | 4688 | } |
b834b58a | 4689 | if (zfs_ioctl(hdl, ZFS_IOC_SNAPSHOT_LIST_NEXT, |
34dc7c2f | 4690 | &zc) == 0) { |
34dc7c2f BB |
4691 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
4692 | "destination has snapshots (eg. %s)\n" | |
4693 | "must destroy them to overwrite it"), | |
b53cb02d | 4694 | zc.zc_name); |
43e52edd BB |
4695 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); |
4696 | goto out; | |
34dc7c2f | 4697 | } |
d8d418ff | 4698 | if (is_volume && strrchr(name, '/') == NULL) { |
4699 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4700 | "destination %s is the root dataset\n" | |
4701 | "cannot overwrite with a ZVOL"), | |
4702 | name); | |
4703 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
4704 | goto out; | |
4705 | } | |
4706 | if (is_volume && | |
b834b58a | 4707 | zfs_ioctl(hdl, ZFS_IOC_DATASET_LIST_NEXT, |
d8d418ff | 4708 | &zc) == 0) { |
4709 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4710 | "destination has children (eg. %s)\n" | |
4711 | "cannot overwrite with a ZVOL"), | |
4712 | zc.zc_name); | |
4713 | err = zfs_error(hdl, EZFS_WRONG_PARENT, errbuf); | |
4714 | goto out; | |
4715 | } | |
34dc7c2f BB |
4716 | } |
4717 | ||
43e52edd | 4718 | if ((zhp = zfs_open(hdl, name, |
34dc7c2f | 4719 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) == NULL) { |
43e52edd BB |
4720 | err = -1; |
4721 | goto out; | |
34dc7c2f BB |
4722 | } |
4723 | ||
3ed9d688 JP |
4724 | /* |
4725 | * When receiving full/newfs on existing dataset, then it | |
4726 | * should be done with "-F" flag. Its enforced for initial | |
4727 | * receive in previous checks in this function. | |
4728 | * Similarly, on resuming full/newfs recv on existing dataset, | |
4729 | * it should be done with "-F" flag. | |
4730 | * | |
4731 | * When dataset doesn't exist, then full/newfs recv is done on | |
4732 | * newly created dataset and it's marked INCONSISTENT. But | |
4733 | * When receiving on existing dataset, recv is first done on | |
4734 | * %recv and its marked INCONSISTENT. Existing dataset is not | |
4735 | * marked INCONSISTENT. | |
4736 | * Resume of full/newfs receive with dataset not INCONSISTENT | |
4737 | * indicates that its resuming newfs on existing dataset. So, | |
4738 | * enforce "-F" flag in this case. | |
4739 | */ | |
4740 | if (stream_resumingnewfs && | |
4741 | !zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && | |
4742 | !flags->force) { | |
4743 | zfs_close(zhp); | |
4744 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4745 | "Resuming recv on existing destination '%s'\n" | |
4746 | "must specify -F to overwrite it"), name); | |
4747 | err = zfs_error(hdl, EZFS_RESUME_EXISTS, errbuf); | |
4748 | goto out; | |
4749 | } | |
4750 | ||
34dc7c2f BB |
4751 | if (stream_wantsnewfs && |
4752 | zhp->zfs_dmustats.dds_origin[0]) { | |
34dc7c2f BB |
4753 | zfs_close(zhp); |
4754 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4755 | "destination '%s' is a clone\n" | |
43e52edd BB |
4756 | "must destroy it to overwrite it"), name); |
4757 | err = zfs_error(hdl, EZFS_EXISTS, errbuf); | |
4758 | goto out; | |
34dc7c2f BB |
4759 | } |
4760 | ||
b5256303 | 4761 | /* |
4a385862 | 4762 | * Raw sends can not be performed as an incremental on top |
78595377 | 4763 | * of existing unencrypted datasets. zfs recv -F can't be |
4a385862 TC |
4764 | * used to blow away an existing encrypted filesystem. This |
4765 | * is because it would require the dsl dir to point to the | |
4766 | * new key (or lack of a key) and the old key at the same | |
4767 | * time. The -F flag may still be used for deleting | |
4768 | * intermediate snapshots that would otherwise prevent the | |
4769 | * receive from working. | |
b5256303 | 4770 | */ |
4a385862 TC |
4771 | encrypted = zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != |
4772 | ZIO_CRYPT_OFF; | |
4773 | if (!stream_wantsnewfs && !encrypted && raw) { | |
b5256303 TC |
4774 | zfs_close(zhp); |
4775 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4a385862 TC |
4776 | "cannot perform raw receive on top of " |
4777 | "existing unencrypted dataset")); | |
b5256303 TC |
4778 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); |
4779 | goto out; | |
4780 | } | |
4781 | ||
4a385862 TC |
4782 | if (stream_wantsnewfs && flags->force && |
4783 | ((raw && !encrypted) || encrypted)) { | |
4784 | zfs_close(zhp); | |
4785 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4786 | "zfs receive -F cannot be used to destroy an " | |
4787 | "encrypted filesystem or overwrite an " | |
4788 | "unencrypted one with an encrypted one")); | |
4789 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); | |
4790 | goto out; | |
4791 | } | |
b5256303 | 4792 | |
330d06f9 | 4793 | if (!flags->dryrun && zhp->zfs_type == ZFS_TYPE_FILESYSTEM && |
a132c2b4 | 4794 | (stream_wantsnewfs || stream_resumingnewfs)) { |
34dc7c2f | 4795 | /* We can't do online recv in this case */ |
a57d3d45 MZ |
4796 | clp = changelist_gather(zhp, ZFS_PROP_NAME, 0, |
4797 | flags->forceunmount ? MS_FORCE : 0); | |
34dc7c2f | 4798 | if (clp == NULL) { |
45d1cae3 | 4799 | zfs_close(zhp); |
43e52edd BB |
4800 | err = -1; |
4801 | goto out; | |
34dc7c2f BB |
4802 | } |
4803 | if (changelist_prefix(clp) != 0) { | |
4804 | changelist_free(clp); | |
45d1cae3 | 4805 | zfs_close(zhp); |
43e52edd BB |
4806 | err = -1; |
4807 | goto out; | |
34dc7c2f BB |
4808 | } |
4809 | } | |
47dfff3b MA |
4810 | |
4811 | /* | |
4812 | * If we are resuming a newfs, set newfs here so that we will | |
4813 | * mount it if the recv succeeds this time. We can tell | |
4814 | * that it was a newfs on the first recv because the fs | |
4815 | * itself will be inconsistent (if the fs existed when we | |
4816 | * did the first recv, we would have received it into | |
4817 | * .../%recv). | |
4818 | */ | |
4819 | if (resuming && zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT)) | |
4820 | newfs = B_TRUE; | |
4821 | ||
a3eeab2d | 4822 | /* we want to know if we're zoned when validating -o|-x props */ |
4823 | zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); | |
4824 | ||
c03f0470 | 4825 | /* may need this info later, get it now we have zhp around */ |
4826 | if (zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, NULL, 0, | |
4827 | NULL, NULL, 0, B_TRUE) == 0) | |
4828 | hastoken = B_TRUE; | |
4829 | ||
a3eeab2d | 4830 | /* gather existing properties on destination */ |
4831 | origprops = fnvlist_alloc(); | |
4832 | fnvlist_merge(origprops, zhp->zfs_props); | |
4833 | fnvlist_merge(origprops, zhp->zfs_user_props); | |
4834 | ||
34dc7c2f BB |
4835 | zfs_close(zhp); |
4836 | } else { | |
b5256303 TC |
4837 | zfs_handle_t *zhp; |
4838 | ||
34dc7c2f BB |
4839 | /* |
4840 | * Destination filesystem does not exist. Therefore we better | |
4841 | * be creating a new filesystem (either from a full backup, or | |
4842 | * a clone). It would therefore be invalid if the user | |
4843 | * specified only the pool name (i.e. if the destination name | |
4844 | * contained no slash character). | |
4845 | */ | |
a64f903b GN |
4846 | cp = strrchr(name, '/'); |
4847 | ||
4848 | if (!stream_wantsnewfs || cp == NULL) { | |
34dc7c2f | 4849 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
43e52edd BB |
4850 | "destination '%s' does not exist"), name); |
4851 | err = zfs_error(hdl, EZFS_NOENT, errbuf); | |
4852 | goto out; | |
34dc7c2f BB |
4853 | } |
4854 | ||
4855 | /* | |
4856 | * Trim off the final dataset component so we perform the | |
4857 | * recvbackup ioctl to the filesystems's parent. | |
4858 | */ | |
4859 | *cp = '\0'; | |
4860 | ||
330d06f9 | 4861 | if (flags->isprefix && !flags->istail && !flags->dryrun && |
43e52edd BB |
4862 | create_parents(hdl, destsnap, strlen(tosnap)) != 0) { |
4863 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); | |
4864 | goto out; | |
34dc7c2f BB |
4865 | } |
4866 | ||
d8d418ff | 4867 | /* validate parent */ |
4868 | zhp = zfs_open(hdl, name, ZFS_TYPE_DATASET); | |
4869 | if (zhp == NULL) { | |
4870 | err = zfs_error(hdl, EZFS_BADRESTORE, errbuf); | |
4871 | goto out; | |
4872 | } | |
4873 | if (zfs_get_type(zhp) != ZFS_TYPE_FILESYSTEM) { | |
4874 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4875 | "parent '%s' is not a filesystem"), name); | |
4876 | err = zfs_error(hdl, EZFS_WRONG_PARENT, errbuf); | |
4877 | zfs_close(zhp); | |
4878 | goto out; | |
4879 | } | |
4880 | ||
d8d418ff | 4881 | zfs_close(zhp); |
b5256303 | 4882 | |
34dc7c2f | 4883 | newfs = B_TRUE; |
b5256303 | 4884 | *cp = '/'; |
34dc7c2f BB |
4885 | } |
4886 | ||
330d06f9 | 4887 | if (flags->verbose) { |
e8cf3a4f | 4888 | (void) printf("%s %s%s stream of %s into %s\n", |
330d06f9 | 4889 | flags->dryrun ? "would receive" : "receiving", |
e8cf3a4f | 4890 | flags->heal ? " corrective" : "", |
34dc7c2f | 4891 | drrb->drr_fromguid ? "incremental" : "full", |
43e52edd | 4892 | drrb->drr_toname, destsnap); |
34dc7c2f BB |
4893 | (void) fflush(stdout); |
4894 | } | |
4895 | ||
bb61cc31 TC |
4896 | /* |
4897 | * If this is the top-level dataset, record it so we can use it | |
4898 | * for recursive operations later. | |
4899 | */ | |
4900 | if (top_zfs != NULL && | |
4901 | (*top_zfs == NULL || strcmp(*top_zfs, name) == 0)) { | |
bee7e4ff | 4902 | toplevel = B_TRUE; |
bb61cc31 TC |
4903 | if (*top_zfs == NULL) |
4904 | *top_zfs = zfs_strdup(hdl, name); | |
4905 | } | |
4906 | ||
a3eeab2d | 4907 | if (drrb->drr_type == DMU_OST_ZVOL) { |
4908 | type = ZFS_TYPE_VOLUME; | |
4909 | } else if (drrb->drr_type == DMU_OST_ZFS) { | |
4910 | type = ZFS_TYPE_FILESYSTEM; | |
4911 | } else { | |
4912 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
4913 | "invalid record type: 0x%d"), drrb->drr_type); | |
4914 | err = zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
4915 | goto out; | |
4916 | } | |
d9c460a0 TC |
4917 | if ((err = zfs_setup_cmdline_props(hdl, type, name, zoned, recursive, |
4918 | stream_wantsnewfs, raw, toplevel, rcvprops, cmdprops, origprops, | |
4919 | &oxprops, &wkeydata, &wkeylen, errbuf)) != 0) | |
a3eeab2d | 4920 | goto out; |
4921 | ||
da689887 TC |
4922 | /* |
4923 | * When sending with properties (zfs send -p), the encryption property | |
4924 | * is not included because it is a SETONCE property and therefore | |
4925 | * treated as read only. However, we are always able to determine its | |
4926 | * value because raw sends will include it in the DRR_BDEGIN payload | |
4927 | * and non-raw sends with properties are not allowed for encrypted | |
4928 | * datasets. Therefore, if this is a non-raw properties stream, we can | |
4929 | * infer that the value should be ZIO_CRYPT_OFF and manually add that | |
4930 | * to the received properties. | |
4931 | */ | |
4932 | if (stream_wantsnewfs && !raw && rcvprops != NULL && | |
4933 | !nvlist_exists(cmdprops, zfs_prop_to_name(ZFS_PROP_ENCRYPTION))) { | |
4934 | if (oxprops == NULL) | |
4935 | oxprops = fnvlist_alloc(); | |
4936 | fnvlist_add_uint64(oxprops, | |
4937 | zfs_prop_to_name(ZFS_PROP_ENCRYPTION), ZIO_CRYPT_OFF); | |
4938 | } | |
4939 | ||
ee6615e0 I |
4940 | if (flags->dryrun) { |
4941 | void *buf = zfs_alloc(hdl, SPA_MAXBLOCKSIZE); | |
4942 | ||
4943 | /* | |
4944 | * We have read the DRR_BEGIN record, but we have | |
4945 | * not yet read the payload. For non-dryrun sends | |
4946 | * this will be done by the kernel, so we must | |
4947 | * emulate that here, before attempting to read | |
4948 | * more records. | |
4949 | */ | |
4950 | err = recv_read(hdl, infd, buf, drr->drr_payloadlen, | |
4951 | flags->byteswap, NULL); | |
4952 | free(buf); | |
4953 | if (err != 0) | |
4954 | goto out; | |
4955 | ||
4956 | err = recv_skip(hdl, infd, flags->byteswap); | |
4957 | goto out; | |
4958 | } | |
4959 | ||
e8cf3a4f AP |
4960 | if (flags->heal) { |
4961 | err = ioctl_err = lzc_receive_with_heal(destsnap, rcvprops, | |
4962 | oxprops, wkeydata, wkeylen, origin, flags->force, | |
4963 | flags->heal, flags->resumable, raw, infd, drr_noswap, -1, | |
4964 | &read_bytes, &errflags, NULL, &prop_errors); | |
4965 | } else { | |
4966 | err = ioctl_err = lzc_receive_with_cmdprops(destsnap, rcvprops, | |
4967 | oxprops, wkeydata, wkeylen, origin, flags->force, | |
4968 | flags->resumable, raw, infd, drr_noswap, -1, &read_bytes, | |
4969 | &errflags, NULL, &prop_errors); | |
4970 | } | |
43e52edd BB |
4971 | ioctl_errno = ioctl_err; |
4972 | prop_errflags = errflags; | |
428870ff BB |
4973 | |
4974 | if (err == 0) { | |
428870ff BB |
4975 | nvpair_t *prop_err = NULL; |
4976 | ||
4977 | while ((prop_err = nvlist_next_nvpair(prop_errors, | |
4978 | prop_err)) != NULL) { | |
4979 | char tbuf[1024]; | |
4980 | zfs_prop_t prop; | |
4981 | int intval; | |
4982 | ||
4983 | prop = zfs_name_to_prop(nvpair_name(prop_err)); | |
4984 | (void) nvpair_value_int32(prop_err, &intval); | |
4985 | if (strcmp(nvpair_name(prop_err), | |
4986 | ZPROP_N_MORE_ERRORS) == 0) { | |
4987 | trunc_prop_errs(intval); | |
4988 | break; | |
671c9354 DM |
4989 | } else if (snapname == NULL || finalsnap == NULL || |
4990 | strcmp(finalsnap, snapname) == 0 || | |
4991 | strcmp(nvpair_name(prop_err), | |
4992 | zfs_prop_to_name(ZFS_PROP_REFQUOTA)) != 0) { | |
4993 | /* | |
4994 | * Skip the special case of, for example, | |
4995 | * "refquota", errors on intermediate | |
4996 | * snapshots leading up to a final one. | |
4997 | * That's why we have all of the checks above. | |
4998 | * | |
4999 | * See zfs_ioctl.c's extract_delay_props() for | |
5000 | * a list of props which can fail on | |
5001 | * intermediate snapshots, but shouldn't | |
5002 | * affect the overall receive. | |
5003 | */ | |
428870ff BB |
5004 | (void) snprintf(tbuf, sizeof (tbuf), |
5005 | dgettext(TEXT_DOMAIN, | |
5006 | "cannot receive %s property on %s"), | |
43e52edd | 5007 | nvpair_name(prop_err), name); |
428870ff BB |
5008 | zfs_setprop_error(hdl, prop, intval, tbuf); |
5009 | } | |
5010 | } | |
428870ff BB |
5011 | } |
5012 | ||
b128c09f | 5013 | if (err == 0 && snapprops_nvlist) { |
43e52edd | 5014 | zfs_cmd_t zc = {"\0"}; |
b128c09f | 5015 | |
a51288aa | 5016 | (void) strlcpy(zc.zc_name, destsnap, sizeof (zc.zc_name)); |
43e52edd | 5017 | zc.zc_cookie = B_TRUE; /* received */ |
18dbf5c8 AZ |
5018 | zcmd_write_src_nvlist(hdl, &zc, snapprops_nvlist); |
5019 | (void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc); | |
5020 | zcmd_free_nvlists(&zc); | |
b128c09f | 5021 | } |
9c5e88b1 PZ |
5022 | if (err == 0 && snapholds_nvlist) { |
5023 | nvpair_t *pair; | |
5024 | nvlist_t *holds, *errors = NULL; | |
5025 | int cleanup_fd = -1; | |
5026 | ||
5027 | VERIFY(0 == nvlist_alloc(&holds, 0, KM_SLEEP)); | |
5028 | for (pair = nvlist_next_nvpair(snapholds_nvlist, NULL); | |
5029 | pair != NULL; | |
5030 | pair = nvlist_next_nvpair(snapholds_nvlist, pair)) { | |
60a2434b | 5031 | fnvlist_add_string(holds, destsnap, nvpair_name(pair)); |
9c5e88b1 PZ |
5032 | } |
5033 | (void) lzc_hold(holds, cleanup_fd, &errors); | |
60a2434b RM |
5034 | fnvlist_free(snapholds_nvlist); |
5035 | fnvlist_free(holds); | |
9c5e88b1 | 5036 | } |
b128c09f | 5037 | |
428870ff | 5038 | if (err && (ioctl_errno == ENOENT || ioctl_errno == EEXIST)) { |
34dc7c2f BB |
5039 | /* |
5040 | * It may be that this snapshot already exists, | |
5041 | * in which case we want to consume & ignore it | |
5042 | * rather than failing. | |
5043 | */ | |
5044 | avl_tree_t *local_avl; | |
5045 | nvlist_t *local_nv, *fs; | |
43e52edd | 5046 | cp = strchr(destsnap, '@'); |
34dc7c2f BB |
5047 | |
5048 | /* | |
5049 | * XXX Do this faster by just iterating over snaps in | |
5050 | * this fs. Also if zc_value does not exist, we will | |
5051 | * get a strange "does not exist" error message. | |
5052 | */ | |
5053 | *cp = '\0'; | |
b5256303 | 5054 | if (gather_nvlist(hdl, destsnap, NULL, NULL, B_FALSE, B_TRUE, |
099fa7e4 PCG |
5055 | B_FALSE, B_FALSE, B_FALSE, B_FALSE, B_FALSE, B_FALSE, |
5056 | B_TRUE, &local_nv, &local_avl) == 0) { | |
34dc7c2f BB |
5057 | *cp = '@'; |
5058 | fs = fsavl_find(local_avl, drrb->drr_toguid, NULL); | |
5059 | fsavl_destroy(local_avl); | |
60a2434b | 5060 | fnvlist_free(local_nv); |
34dc7c2f BB |
5061 | |
5062 | if (fs != NULL) { | |
330d06f9 | 5063 | if (flags->verbose) { |
34dc7c2f | 5064 | (void) printf("snap %s already exists; " |
43e52edd | 5065 | "ignoring\n", destsnap); |
34dc7c2f | 5066 | } |
428870ff | 5067 | err = ioctl_err = recv_skip(hdl, infd, |
330d06f9 | 5068 | flags->byteswap); |
34dc7c2f BB |
5069 | } |
5070 | } | |
5071 | *cp = '@'; | |
5072 | } | |
5073 | ||
34dc7c2f BB |
5074 | if (ioctl_err != 0) { |
5075 | switch (ioctl_errno) { | |
5076 | case ENODEV: | |
43e52edd | 5077 | cp = strchr(destsnap, '@'); |
34dc7c2f BB |
5078 | *cp = '\0'; |
5079 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5080 | "most recent snapshot of %s does not\n" | |
43e52edd | 5081 | "match incremental source"), destsnap); |
34dc7c2f BB |
5082 | (void) zfs_error(hdl, EZFS_BADRESTORE, errbuf); |
5083 | *cp = '@'; | |
5084 | break; | |
5085 | case ETXTBSY: | |
5086 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5087 | "destination %s has been modified\n" | |
43e52edd | 5088 | "since most recent snapshot"), name); |
34dc7c2f BB |
5089 | (void) zfs_error(hdl, EZFS_BADRESTORE, errbuf); |
5090 | break; | |
b5256303 | 5091 | case EACCES: |
e8cf3a4f AP |
5092 | if (flags->heal) { |
5093 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5094 | "key must be loaded to do a non-raw " | |
5095 | "corrective recv on an encrypted " | |
5096 | "dataset.")); | |
5097 | } else if (raw && stream_wantsnewfs) { | |
b5256303 TC |
5098 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
5099 | "failed to create encryption key")); | |
5100 | } else if (raw && !stream_wantsnewfs) { | |
5101 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5102 | "encryption key does not match " | |
5103 | "existing key")); | |
5104 | } else { | |
5105 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5106 | "inherited key must be loaded")); | |
5107 | } | |
5108 | (void) zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf); | |
5109 | break; | |
34dc7c2f | 5110 | case EEXIST: |
43e52edd | 5111 | cp = strchr(destsnap, '@'); |
34dc7c2f BB |
5112 | if (newfs) { |
5113 | /* it's the containing fs that exists */ | |
5114 | *cp = '\0'; | |
5115 | } | |
5116 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5117 | "destination already exists")); | |
5118 | (void) zfs_error_fmt(hdl, EZFS_EXISTS, | |
5119 | dgettext(TEXT_DOMAIN, "cannot restore to %s"), | |
43e52edd | 5120 | destsnap); |
34dc7c2f BB |
5121 | *cp = '@'; |
5122 | break; | |
5123 | case EINVAL: | |
63267f7f | 5124 | if (embedded && !raw) { |
9b840763 TC |
5125 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, |
5126 | "incompatible embedded data stream " | |
5127 | "feature with encrypted receive.")); | |
63267f7f AJ |
5128 | } else if (flags->resumable) { |
5129 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5130 | "kernel modules must be upgraded to " | |
5131 | "receive this stream.")); | |
2ba59fa9 | 5132 | } |
34dc7c2f BB |
5133 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); |
5134 | break; | |
5135 | case ECKSUM: | |
7145123b | 5136 | case ZFS_ERR_STREAM_TRUNCATED: |
e8cf3a4f AP |
5137 | if (flags->heal) |
5138 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5139 | "corrective receive was not able to " | |
5140 | "reconstruct the data needed for " | |
5141 | "healing.")); | |
5142 | else | |
5143 | recv_ecksum_set_aux(hdl, destsnap, | |
5144 | flags->resumable, ioctl_err == ECKSUM); | |
34dc7c2f BB |
5145 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); |
5146 | break; | |
7bcb7f08 MA |
5147 | case ZFS_ERR_STREAM_LARGE_BLOCK_MISMATCH: |
5148 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5149 | "incremental send stream requires -L " | |
5150 | "(--large-block), to match previous receive.")); | |
5151 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5152 | break; | |
428870ff | 5153 | case ENOTSUP: |
e8cf3a4f AP |
5154 | if (flags->heal) |
5155 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5156 | "stream is not compatible with the " | |
5157 | "data in the pool.")); | |
5158 | else | |
5159 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5160 | "pool must be upgraded to receive this " | |
5161 | "stream.")); | |
428870ff BB |
5162 | (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); |
5163 | break; | |
b988f32c RN |
5164 | case ZFS_ERR_CRYPTO_NOTSUP: |
5165 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5166 | "stream uses crypto parameters not compatible with " | |
5167 | "this pool")); | |
5168 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5169 | break; | |
428870ff BB |
5170 | case EDQUOT: |
5171 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
c03f0470 | 5172 | "destination %s space quota exceeded."), name); |
330d06f9 | 5173 | (void) zfs_error(hdl, EZFS_NOSPC, errbuf); |
428870ff | 5174 | break; |
f00ab3f2 TC |
5175 | case ZFS_ERR_FROM_IVSET_GUID_MISSING: |
5176 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
73c25a78 | 5177 | "IV set guid missing. See errata %u at " |
a2f944a1 RM |
5178 | "https://openzfs.github.io/openzfs-docs/msg/" |
5179 | "ZFS-8000-ER."), | |
f00ab3f2 TC |
5180 | ZPOOL_ERRATA_ZOL_8308_ENCRYPTION); |
5181 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5182 | break; | |
5183 | case ZFS_ERR_FROM_IVSET_GUID_MISMATCH: | |
5184 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5185 | "IV set guid mismatch. See the 'zfs receive' " | |
5186 | "man page section\n discussing the limitations " | |
5187 | "of raw encrypted send streams.")); | |
5188 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5189 | break; | |
caf9dd20 BB |
5190 | case ZFS_ERR_SPILL_BLOCK_FLAG_MISSING: |
5191 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5192 | "Spill block flag missing for raw send.\n" | |
5193 | "The zfs software on the sending system must " | |
5194 | "be updated.")); | |
5195 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5196 | break; | |
3ed9d688 JP |
5197 | case ZFS_ERR_RESUME_EXISTS: |
5198 | cp = strchr(destsnap, '@'); | |
5199 | if (newfs) { | |
5200 | /* it's the containing fs that exists */ | |
5201 | *cp = '\0'; | |
5202 | } | |
5203 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5204 | "Resuming recv on existing dataset without force")); | |
5205 | (void) zfs_error_fmt(hdl, EZFS_RESUME_EXISTS, | |
5206 | dgettext(TEXT_DOMAIN, "cannot resume recv %s"), | |
5207 | destsnap); | |
5208 | *cp = '@'; | |
5209 | break; | |
73968def RY |
5210 | case E2BIG: |
5211 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5212 | "zfs receive required kernel memory allocation " | |
5213 | "larger than the system can support. Please file " | |
5214 | "an issue at the OpenZFS issue tracker:\n" | |
5215 | "https://github.com/openzfs/zfs/issues/new")); | |
5216 | (void) zfs_error(hdl, EZFS_BADSTREAM, errbuf); | |
5217 | break; | |
c03f0470 | 5218 | case EBUSY: |
5219 | if (hastoken) { | |
5220 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5221 | "destination %s contains " | |
5222 | "partially-complete state from " | |
5223 | "\"zfs receive -s\"."), name); | |
5224 | (void) zfs_error(hdl, EZFS_BUSY, errbuf); | |
5225 | break; | |
5226 | } | |
9a70e97f | 5227 | zfs_fallthrough; |
34dc7c2f BB |
5228 | default: |
5229 | (void) zfs_standard_error(hdl, ioctl_errno, errbuf); | |
5230 | } | |
5231 | } | |
5232 | ||
5233 | /* | |
428870ff BB |
5234 | * Mount the target filesystem (if created). Also mount any |
5235 | * children of the target filesystem if we did a replication | |
5236 | * receive (indicated by stream_avl being non-NULL). | |
34dc7c2f | 5237 | */ |
34dc7c2f | 5238 | if (clp) { |
89d43feb GM |
5239 | if (!flags->nomount) |
5240 | err |= changelist_postfix(clp); | |
34dc7c2f BB |
5241 | changelist_free(clp); |
5242 | } | |
5243 | ||
bb61cc31 TC |
5244 | if ((newfs || stream_avl) && type == ZFS_TYPE_FILESYSTEM && !redacted) |
5245 | flags->domount = B_TRUE; | |
5246 | ||
428870ff BB |
5247 | if (prop_errflags & ZPROP_ERR_NOCLEAR) { |
5248 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: " | |
43e52edd | 5249 | "failed to clear unreceived properties on %s"), name); |
428870ff BB |
5250 | (void) fprintf(stderr, "\n"); |
5251 | } | |
5252 | if (prop_errflags & ZPROP_ERR_NORESTORE) { | |
5253 | (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Warning: " | |
43e52edd | 5254 | "failed to restore original properties on %s"), name); |
428870ff BB |
5255 | (void) fprintf(stderr, "\n"); |
5256 | } | |
5257 | ||
43e52edd BB |
5258 | if (err || ioctl_err) { |
5259 | err = -1; | |
5260 | goto out; | |
5261 | } | |
572e2857 | 5262 | |
330d06f9 | 5263 | if (flags->verbose) { |
34dc7c2f BB |
5264 | char buf1[64]; |
5265 | char buf2[64]; | |
43e52edd | 5266 | uint64_t bytes = read_bytes; |
67de71e6 AZ |
5267 | struct timespec delta; |
5268 | clock_gettime(CLOCK_MONOTONIC_RAW, &delta); | |
5269 | if (begin_time.tv_nsec > delta.tv_nsec) { | |
5270 | delta.tv_nsec = | |
5271 | 1000000000 + delta.tv_nsec - begin_time.tv_nsec; | |
5272 | delta.tv_sec -= 1; | |
5273 | } else | |
5274 | delta.tv_nsec -= begin_time.tv_nsec; | |
5275 | delta.tv_sec -= begin_time.tv_sec; | |
5276 | if (delta.tv_sec == 0 && delta.tv_nsec == 0) | |
5277 | delta.tv_nsec = 1; | |
5278 | double delta_f = delta.tv_sec + (delta.tv_nsec / 1e9); | |
e7fbeb60 | 5279 | zfs_nicebytes(bytes, buf1, sizeof (buf1)); |
67de71e6 | 5280 | zfs_nicebytes(bytes / delta_f, buf2, sizeof (buf2)); |
34dc7c2f | 5281 | |
67de71e6 AZ |
5282 | (void) printf("received %s stream in %.2f seconds (%s/sec)\n", |
5283 | buf1, delta_f, buf2); | |
34dc7c2f BB |
5284 | } |
5285 | ||
43e52edd BB |
5286 | err = 0; |
5287 | out: | |
5288 | if (prop_errors != NULL) | |
60a2434b | 5289 | fnvlist_free(prop_errors); |
43e52edd | 5290 | |
b5256303 | 5291 | if (tmp_keylocation[0] != '\0') { |
60a2434b RM |
5292 | fnvlist_add_string(rcvprops, |
5293 | zfs_prop_to_name(ZFS_PROP_KEYLOCATION), tmp_keylocation); | |
b5256303 TC |
5294 | } |
5295 | ||
43e52edd | 5296 | if (newprops) |
60a2434b | 5297 | fnvlist_free(rcvprops); |
a3eeab2d | 5298 | |
60a2434b RM |
5299 | fnvlist_free(oxprops); |
5300 | fnvlist_free(origprops); | |
43e52edd BB |
5301 | |
5302 | return (err); | |
34dc7c2f BB |
5303 | } |
5304 | ||
a3eeab2d | 5305 | /* |
5306 | * Check properties we were asked to override (both -o|-x) | |
5307 | */ | |
5308 | static boolean_t | |
5309 | zfs_receive_checkprops(libzfs_handle_t *hdl, nvlist_t *props, | |
5310 | const char *errbuf) | |
5311 | { | |
ae07fc13 | 5312 | nvpair_t *nvp = NULL; |
a3eeab2d | 5313 | zfs_prop_t prop; |
5314 | const char *name; | |
5315 | ||
a3eeab2d | 5316 | while ((nvp = nvlist_next_nvpair(props, nvp)) != NULL) { |
5317 | name = nvpair_name(nvp); | |
5318 | prop = zfs_name_to_prop(name); | |
5319 | ||
4ff7a8fa | 5320 | if (prop == ZPROP_USERPROP) { |
a3eeab2d | 5321 | if (!zfs_prop_user(name)) { |
5322 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
7633c0ae | 5323 | "%s: invalid property '%s'"), errbuf, name); |
a3eeab2d | 5324 | return (B_FALSE); |
5325 | } | |
5326 | continue; | |
5327 | } | |
5328 | /* | |
5329 | * "origin" is readonly but is used to receive datasets as | |
5330 | * clones so we don't raise an error here | |
5331 | */ | |
5332 | if (prop == ZFS_PROP_ORIGIN) | |
5333 | continue; | |
5334 | ||
d9c460a0 TC |
5335 | /* encryption params have their own verification later */ |
5336 | if (prop == ZFS_PROP_ENCRYPTION || | |
5337 | zfs_prop_encryption_key_param(prop)) | |
5338 | continue; | |
5339 | ||
a3eeab2d | 5340 | /* |
5341 | * cannot override readonly, set-once and other specific | |
5342 | * settable properties | |
5343 | */ | |
5344 | if (zfs_prop_readonly(prop) || prop == ZFS_PROP_VERSION || | |
5345 | prop == ZFS_PROP_VOLSIZE) { | |
5346 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
7633c0ae | 5347 | "%s: invalid property '%s'"), errbuf, name); |
a3eeab2d | 5348 | return (B_FALSE); |
5349 | } | |
5350 | } | |
5351 | ||
5352 | return (B_TRUE); | |
5353 | } | |
5354 | ||
b128c09f | 5355 | static int |
fcff0f35 PD |
5356 | zfs_receive_impl(libzfs_handle_t *hdl, const char *tosnap, |
5357 | const char *originsnap, recvflags_t *flags, int infd, const char *sendfs, | |
196bee4c MA |
5358 | nvlist_t *stream_nv, avl_tree_t *stream_avl, char **top_zfs, |
5359 | const char *finalsnap, nvlist_t *cmdprops) | |
34dc7c2f BB |
5360 | { |
5361 | int err; | |
5362 | dmu_replay_record_t drr, drr_noswap; | |
5363 | struct drr_begin *drrb = &drr.drr_u.drr_begin; | |
d68a2bfa | 5364 | char errbuf[ERRBUFLEN]; |
2598c001 | 5365 | zio_cksum_t zcksum = { { 0 } }; |
428870ff BB |
5366 | uint64_t featureflags; |
5367 | int hdrtype; | |
34dc7c2f BB |
5368 | |
5369 | (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, | |
5370 | "cannot receive")); | |
5371 | ||
a3eeab2d | 5372 | /* check cmdline props, raise an error if they cannot be received */ |
7633c0ae | 5373 | if (!zfs_receive_checkprops(hdl, cmdprops, errbuf)) |
ae07fc13 | 5374 | return (zfs_error(hdl, EZFS_BADPROP, errbuf)); |
a3eeab2d | 5375 | |
330d06f9 | 5376 | if (flags->isprefix && |
34dc7c2f BB |
5377 | !zfs_dataset_exists(hdl, tosnap, ZFS_TYPE_DATASET)) { |
5378 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "specified fs " | |
5379 | "(%s) does not exist"), tosnap); | |
5380 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
5381 | } | |
fcff0f35 PD |
5382 | if (originsnap && |
5383 | !zfs_dataset_exists(hdl, originsnap, ZFS_TYPE_DATASET)) { | |
5384 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "specified origin fs " | |
5385 | "(%s) does not exist"), originsnap); | |
5386 | return (zfs_error(hdl, EZFS_NOENT, errbuf)); | |
5387 | } | |
34dc7c2f BB |
5388 | |
5389 | /* read in the BEGIN record */ | |
5390 | if (0 != (err = recv_read(hdl, infd, &drr, sizeof (drr), B_FALSE, | |
5391 | &zcksum))) | |
5392 | return (err); | |
5393 | ||
5394 | if (drr.drr_type == DRR_END || drr.drr_type == BSWAP_32(DRR_END)) { | |
5395 | /* It's the double end record at the end of a package */ | |
5396 | return (ENODATA); | |
5397 | } | |
5398 | ||
5399 | /* the kernel needs the non-byteswapped begin record */ | |
5400 | drr_noswap = drr; | |
5401 | ||
330d06f9 | 5402 | flags->byteswap = B_FALSE; |
34dc7c2f BB |
5403 | if (drrb->drr_magic == BSWAP_64(DMU_BACKUP_MAGIC)) { |
5404 | /* | |
5405 | * We computed the checksum in the wrong byteorder in | |
5406 | * recv_read() above; do it again correctly. | |
5407 | */ | |
861166b0 | 5408 | memset(&zcksum, 0, sizeof (zio_cksum_t)); |
34dc7c2f | 5409 | fletcher_4_incremental_byteswap(&drr, sizeof (drr), &zcksum); |
330d06f9 | 5410 | flags->byteswap = B_TRUE; |
34dc7c2f BB |
5411 | |
5412 | drr.drr_type = BSWAP_32(drr.drr_type); | |
5413 | drr.drr_payloadlen = BSWAP_32(drr.drr_payloadlen); | |
5414 | drrb->drr_magic = BSWAP_64(drrb->drr_magic); | |
428870ff | 5415 | drrb->drr_versioninfo = BSWAP_64(drrb->drr_versioninfo); |
34dc7c2f BB |
5416 | drrb->drr_creation_time = BSWAP_64(drrb->drr_creation_time); |
5417 | drrb->drr_type = BSWAP_32(drrb->drr_type); | |
5418 | drrb->drr_flags = BSWAP_32(drrb->drr_flags); | |
5419 | drrb->drr_toguid = BSWAP_64(drrb->drr_toguid); | |
5420 | drrb->drr_fromguid = BSWAP_64(drrb->drr_fromguid); | |
5421 | } | |
5422 | ||
5423 | if (drrb->drr_magic != DMU_BACKUP_MAGIC || drr.drr_type != DRR_BEGIN) { | |
5424 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
5425 | "stream (bad magic number)")); | |
5426 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); | |
5427 | } | |
5428 | ||
428870ff BB |
5429 | featureflags = DMU_GET_FEATUREFLAGS(drrb->drr_versioninfo); |
5430 | hdrtype = DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo); | |
5431 | ||
5432 | if (!DMU_STREAM_SUPPORTED(featureflags) || | |
5433 | (hdrtype != DMU_SUBSTREAM && hdrtype != DMU_COMPOUNDSTREAM)) { | |
a2ffc0e0 RE |
5434 | /* |
5435 | * Let's be explicit about this one, since rather than | |
5436 | * being a new feature we can't know, it's an old | |
5437 | * feature we dropped. | |
5438 | */ | |
5439 | if (featureflags & DMU_BACKUP_FEATURE_DEDUP) { | |
5440 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5441 | "stream has deprecated feature: dedup, try " | |
5442 | "'zstream redup [send in a file] | zfs recv " | |
5443 | "[...]'")); | |
5444 | } else { | |
5445 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, | |
5446 | "stream has unsupported feature, feature flags = " | |
5447 | "%llx (unknown flags = %llx)"), | |
5448 | (u_longlong_t)featureflags, | |
5449 | (u_longlong_t)((featureflags) & | |
5450 | ~DMU_BACKUP_FEATURE_MASK)); | |
5451 | } | |
428870ff BB |
5452 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); |
5453 | } | |
5454 | ||
9c5e88b1 | 5455 | /* Holds feature is set once in the compound stream header. */ |
c618f87c | 5456 | if (featureflags & DMU_BACKUP_FEATURE_HOLDS) |
9c5e88b1 PZ |
5457 | flags->holds = B_TRUE; |
5458 | ||
34dc7c2f BB |
5459 | if (strchr(drrb->drr_toname, '@') == NULL) { |
5460 | zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "invalid " | |
5461 | "stream (bad snapshot name)")); | |
5462 | return (zfs_error(hdl, EZFS_BADSTREAM, errbuf)); | |
5463 | } | |
5464 | ||
428870ff | 5465 | if (DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == DMU_SUBSTREAM) { |
eca7b760 | 5466 | char nonpackage_sendfs[ZFS_MAX_DATASET_NAME_LEN]; |
428870ff BB |
5467 | if (sendfs == NULL) { |
5468 | /* | |
5469 | * We were not called from zfs_receive_package(). Get | |
5470 | * the fs specified by 'zfs send'. | |
5471 | */ | |
5472 | char *cp; | |
5473 | (void) strlcpy(nonpackage_sendfs, | |
eca7b760 IK |
5474 | drr.drr_u.drr_begin.drr_toname, |
5475 | sizeof (nonpackage_sendfs)); | |
428870ff BB |
5476 | if ((cp = strchr(nonpackage_sendfs, '@')) != NULL) |
5477 | *cp = '\0'; | |
5478 | sendfs = nonpackage_sendfs; | |
671c9354 | 5479 | VERIFY(finalsnap == NULL); |
428870ff | 5480 | } |
fcff0f35 PD |
5481 | return (zfs_receive_one(hdl, infd, tosnap, originsnap, flags, |
5482 | &drr, &drr_noswap, sendfs, stream_nv, stream_avl, top_zfs, | |
196bee4c | 5483 | finalsnap, cmdprops)); |
428870ff BB |
5484 | } else { |
5485 | assert(DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) == | |
5486 | DMU_COMPOUNDSTREAM); | |
fcff0f35 | 5487 | return (zfs_receive_package(hdl, infd, tosnap, flags, &drr, |
196bee4c | 5488 | &zcksum, top_zfs, cmdprops)); |
34dc7c2f BB |
5489 | } |
5490 | } | |
b128c09f BB |
5491 | |
5492 | /* | |
5493 | * Restores a backup of tosnap from the file descriptor specified by infd. | |
5494 | * Return 0 on total success, -2 if some things couldn't be | |
5495 | * destroyed/renamed/promoted, -1 if some things couldn't be received. | |
47dfff3b MA |
5496 | * (-1 will override -2, if -1 and the resumable flag was specified the |
5497 | * transfer can be resumed if the sending side supports it). | |
b128c09f BB |
5498 | */ |
5499 | int | |
fcff0f35 PD |
5500 | zfs_receive(libzfs_handle_t *hdl, const char *tosnap, nvlist_t *props, |
5501 | recvflags_t *flags, int infd, avl_tree_t *stream_avl) | |
b128c09f BB |
5502 | { |
5503 | char *top_zfs = NULL; | |
5504 | int err; | |
5c3f61eb | 5505 | struct stat sb; |
d1807f16 | 5506 | const char *originsnap = NULL; |
5c3f61eb RY |
5507 | |
5508 | /* | |
5509 | * The only way fstat can fail is if we do not have a valid file | |
5510 | * descriptor. | |
5511 | */ | |
5512 | if (fstat(infd, &sb) == -1) { | |
5513 | perror("fstat"); | |
5514 | return (-2); | |
5515 | } | |
5516 | ||
fcff0f35 PD |
5517 | if (props) { |
5518 | err = nvlist_lookup_string(props, "origin", &originsnap); | |
5519 | if (err && err != ENOENT) | |
5520 | return (err); | |
5521 | } | |
5522 | ||
fcff0f35 | 5523 | err = zfs_receive_impl(hdl, tosnap, originsnap, flags, infd, NULL, NULL, |
196bee4c | 5524 | stream_avl, &top_zfs, NULL, props); |
b128c09f | 5525 | |
bb61cc31 | 5526 | if (err == 0 && !flags->nomount && flags->domount && top_zfs) { |
689f093e GN |
5527 | zfs_handle_t *zhp = NULL; |
5528 | prop_changelist_t *clp = NULL; | |
b128c09f | 5529 | |
bb61cc31 TC |
5530 | zhp = zfs_open(hdl, top_zfs, |
5531 | ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); | |
5532 | if (zhp == NULL) { | |
5533 | err = -1; | |
5534 | goto out; | |
5535 | } else { | |
5536 | if (zhp->zfs_type == ZFS_TYPE_VOLUME) { | |
5537 | zfs_close(zhp); | |
5538 | goto out; | |
5539 | } | |
5540 | ||
b128c09f | 5541 | clp = changelist_gather(zhp, ZFS_PROP_MOUNTPOINT, |
a57d3d45 MZ |
5542 | CL_GATHER_MOUNT_ALWAYS, |
5543 | flags->forceunmount ? MS_FORCE : 0); | |
b128c09f | 5544 | zfs_close(zhp); |
bb61cc31 TC |
5545 | if (clp == NULL) { |
5546 | err = -1; | |
5547 | goto out; | |
b128c09f | 5548 | } |
bb61cc31 TC |
5549 | |
5550 | /* mount and share received datasets */ | |
5551 | err = changelist_postfix(clp); | |
5552 | changelist_free(clp); | |
5553 | if (err != 0) | |
5554 | err = -1; | |
b128c09f | 5555 | } |
b128c09f | 5556 | } |
bb61cc31 TC |
5557 | |
5558 | out: | |
b128c09f BB |
5559 | if (top_zfs) |
5560 | free(top_zfs); | |
5561 | ||
5562 | return (err); | |
5563 | } |