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Update to onnv_147

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This is the last official OpenSolaris tag before the public
development tree was closed.
This commit is contained in:
Brian Behlendorf
2010-08-26 14:24:34 -07:00
parent 1980602bfa
commit 572e285762
101 changed files with 7835 additions and 2448 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/libzfs/include/libzfs.h
+25 -7
View File
@@ -103,7 +103,6 @@ enum {
EZFS_BADPERM, /* invalid permission */
EZFS_BADPERMSET, /* invalid permission set name */
EZFS_NODELEGATION, /* delegated administration is disabled */
EZFS_PERMRDONLY, /* pemissions are readonly */
EZFS_UNSHARESMBFAILED, /* failed to unshare over smb */
EZFS_SHARESMBFAILED, /* failed to share over smb */
EZFS_BADCACHE, /* bad cache file */
@@ -120,6 +119,9 @@ enum {
EZFS_POSTSPLIT_ONLINE, /* onlining a disk after splitting it */
EZFS_SCRUBBING, /* currently scrubbing */
EZFS_NO_SCRUB, /* no active scrub */
EZFS_DIFF, /* general failure of zfs diff */
EZFS_DIFFDATA, /* bad zfs diff data */
EZFS_POOLREADONLY, /* pool is in read-only mode */
EZFS_UNKNOWN
};
@@ -326,7 +328,7 @@ extern int zpool_export_force(zpool_handle_t *);
extern int zpool_import(libzfs_handle_t *, nvlist_t *, const char *,
char *altroot);
extern int zpool_import_props(libzfs_handle_t *, nvlist_t *, const char *,
nvlist_t *, boolean_t);
nvlist_t *, int);
/*
* Search for pools to import
@@ -492,6 +494,17 @@ extern int zfs_iter_filesystems(zfs_handle_t *, zfs_iter_f, void *);
extern int zfs_iter_snapshots(zfs_handle_t *, zfs_iter_f, void *);
extern int zfs_iter_snapshots_sorted(zfs_handle_t *, zfs_iter_f, void *);
typedef struct get_all_cb {
zfs_handle_t **cb_handles;
size_t cb_alloc;
size_t cb_used;
boolean_t cb_verbose;
int (*cb_getone)(zfs_handle_t *, void *);
} get_all_cb_t;
void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *);
int libzfs_dataset_cmp(const void *, const void *);
/*
* Functions to create and destroy datasets.
*/
@@ -533,12 +546,8 @@ extern int zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
extern int zfs_promote(zfs_handle_t *);
extern int zfs_hold(zfs_handle_t *, const char *, const char *, boolean_t,
boolean_t, boolean_t);
extern int zfs_hold_range(zfs_handle_t *, const char *, const char *,
const char *, boolean_t, boolean_t, snapfilter_cb_t, void *);
boolean_t, boolean_t, int, uint64_t, uint64_t);
extern int zfs_release(zfs_handle_t *, const char *, const char *, boolean_t);
extern int zfs_release_range(zfs_handle_t *, const char *, const char *,
const char *, boolean_t);
extern uint64_t zvol_volsize_to_reservation(uint64_t, nvlist_t *);
typedef int (*zfs_userspace_cb_t)(void *arg, const char *domain,
@@ -579,6 +588,15 @@ typedef struct recvflags {
extern int zfs_receive(libzfs_handle_t *, const char *, recvflags_t,
int, avl_tree_t *);
typedef enum diff_flags {
ZFS_DIFF_PARSEABLE = 0x1,
ZFS_DIFF_TIMESTAMP = 0x2,
ZFS_DIFF_CLASSIFY = 0x4
} diff_flags_t;
extern int zfs_show_diffs(zfs_handle_t *, int, const char *, const char *,
int);
/*
* Miscellaneous functions.
*/
lib/libzfs/include/libzfs_impl.h
+6 -2
View File
@@ -20,8 +20,7 @@
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#ifndef _LIBFS_IMPL_H
@@ -69,6 +68,7 @@ struct libzfs_handle {
char libzfs_desc[1024];
char *libzfs_log_str;
int libzfs_printerr;
int libzfs_storeerr; /* stuff error messages into buffer */
void *libzfs_sharehdl; /* libshare handle */
uint_t libzfs_shareflags;
boolean_t libzfs_mnttab_enable;
@@ -136,6 +136,7 @@ int zfs_error_fmt(libzfs_handle_t *, int, const char *, ...);
void zfs_error_aux(libzfs_handle_t *, const char *, ...);
void *zfs_alloc(libzfs_handle_t *, size_t);
void *zfs_realloc(libzfs_handle_t *, void *, size_t, size_t);
char *zfs_asprintf(libzfs_handle_t *, const char *, ...);
char *zfs_strdup(libzfs_handle_t *, const char *);
int no_memory(libzfs_handle_t *);
@@ -188,6 +189,9 @@ int zpool_open_silent(libzfs_handle_t *, const char *, zpool_handle_t **);
boolean_t zpool_name_valid(libzfs_handle_t *, boolean_t, const char *);
int zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type,
boolean_t modifying);
void namespace_clear(libzfs_handle_t *);
/*
lib/libzfs/libzfs_dataset.c
+69 -156
View File
@@ -20,8 +20,7 @@
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#include <ctype.h>
@@ -126,7 +125,7 @@ path_to_str(const char *path, int types)
* provide a more meaningful error message. We call zfs_error_aux() to
* explain exactly why the name was not valid.
*/
static int
int
zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type,
boolean_t modifying)
{
@@ -1212,34 +1211,6 @@ badlabel:
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
/*
* If this is an existing volume, and someone is setting the volsize,
* make sure that it matches the reservation, or add it if necessary.
*/
if (zhp != NULL && type == ZFS_TYPE_VOLUME &&
nvlist_lookup_uint64(ret, zfs_prop_to_name(ZFS_PROP_VOLSIZE),
&intval) == 0) {
uint64_t old_volsize = zfs_prop_get_int(zhp,
ZFS_PROP_VOLSIZE);
uint64_t old_reservation;
uint64_t new_reservation;
zfs_prop_t resv_prop;
if (zfs_which_resv_prop(zhp, &resv_prop) < 0)
goto error;
old_reservation = zfs_prop_get_int(zhp, resv_prop);
if (old_volsize == old_reservation &&
nvlist_lookup_uint64(ret, zfs_prop_to_name(resv_prop),
&new_reservation) != 0) {
if (nvlist_add_uint64(ret,
zfs_prop_to_name(resv_prop), intval) != 0) {
(void) no_memory(hdl);
goto error;
}
}
}
return (ret);
error:
@@ -1247,6 +1218,41 @@ error:
return (NULL);
}
int
zfs_add_synthetic_resv(zfs_handle_t *zhp, nvlist_t *nvl)
{
uint64_t old_volsize;
uint64_t new_volsize;
uint64_t old_reservation;
uint64_t new_reservation;
zfs_prop_t resv_prop;
/*
* If this is an existing volume, and someone is setting the volsize,
* make sure that it matches the reservation, or add it if necessary.
*/
old_volsize = zfs_prop_get_int(zhp, ZFS_PROP_VOLSIZE);
if (zfs_which_resv_prop(zhp, &resv_prop) < 0)
return (-1);
old_reservation = zfs_prop_get_int(zhp, resv_prop);
if ((zvol_volsize_to_reservation(old_volsize, zhp->zfs_props) !=
old_reservation) || nvlist_lookup_uint64(nvl,
zfs_prop_to_name(resv_prop), &new_reservation) != ENOENT) {
return (0);
}
if (nvlist_lookup_uint64(nvl, zfs_prop_to_name(ZFS_PROP_VOLSIZE),
&new_volsize) != 0)
return (-1);
new_reservation = zvol_volsize_to_reservation(new_volsize,
zhp->zfs_props);
if (nvlist_add_uint64(nvl, zfs_prop_to_name(resv_prop),
new_reservation) != 0) {
(void) no_memory(zhp->zfs_hdl);
return (-1);
}
return (1);
}
void
zfs_setprop_error(libzfs_handle_t *hdl, zfs_prop_t prop, int err,
char *errbuf)
@@ -1346,6 +1352,7 @@ zfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval)
zfs_prop_t prop;
boolean_t do_prefix;
uint64_t idx;
int added_resv;
(void) snprintf(errbuf, sizeof (errbuf),
dgettext(TEXT_DOMAIN, "cannot set property for '%s'"),
@@ -1366,6 +1373,11 @@ zfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval)
prop = zfs_name_to_prop(propname);
if (prop == ZFS_PROP_VOLSIZE) {
if ((added_resv = zfs_add_synthetic_resv(zhp, nvl)) == -1)
goto error;
}
if ((cl = changelist_gather(zhp, prop, 0, 0)) == NULL)
goto error;
@@ -1400,6 +1412,22 @@ zfs_prop_set(zfs_handle_t *zhp, const char *propname, const char *propval)
if (ret != 0) {
zfs_setprop_error(hdl, prop, errno, errbuf);
if (added_resv && errno == ENOSPC) {
/* clean up the volsize property we tried to set */
uint64_t old_volsize = zfs_prop_get_int(zhp,
ZFS_PROP_VOLSIZE);
nvlist_free(nvl);
zcmd_free_nvlists(&zc);
if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
goto error;
if (nvlist_add_uint64(nvl,
zfs_prop_to_name(ZFS_PROP_VOLSIZE),
old_volsize) != 0)
goto error;
if (zcmd_write_src_nvlist(hdl, &zc, nvl) != 0)
goto error;
(void) zfs_ioctl(hdl, ZFS_IOC_SET_PROP, &zc);
}
} else {
if (do_prefix)
ret = changelist_postfix(cl);
@@ -1474,7 +1502,7 @@ zfs_prop_inherit(zfs_handle_t *zhp, const char *propname, boolean_t received)
return (zfs_error(hdl, EZFS_PROPTYPE, errbuf));
/*
* Normalize the name, to get rid of shorthand abbrevations.
* Normalize the name, to get rid of shorthand abbreviations.
*/
propname = zfs_prop_to_name(prop);
(void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
@@ -2173,14 +2201,11 @@ static int
idmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser,
char **domainp, idmap_rid_t *ridp)
{
idmap_handle_t *idmap_hdl = NULL;
idmap_get_handle_t *get_hdl = NULL;
idmap_stat status;
int err = EINVAL;
if (idmap_init(&idmap_hdl) != IDMAP_SUCCESS)
goto out;
if (idmap_get_create(idmap_hdl, &get_hdl) != IDMAP_SUCCESS)
if (idmap_get_create(&get_hdl) != IDMAP_SUCCESS)
goto out;
if (isuser) {
@@ -2199,8 +2224,6 @@ idmap_id_to_numeric_domain_rid(uid_t id, boolean_t isuser,
out:
if (get_hdl)
idmap_get_destroy(get_hdl);
if (idmap_hdl)
(void) idmap_fini(idmap_hdl);
return (err);
}
@@ -3898,11 +3921,14 @@ zfs_userspace(zfs_handle_t *zhp, zfs_userquota_prop_t type,
int
zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag,
boolean_t recursive, boolean_t temphold, boolean_t enoent_ok)
boolean_t recursive, boolean_t temphold, boolean_t enoent_ok,
int cleanup_fd, uint64_t dsobj, uint64_t createtxg)
{
zfs_cmd_t zc = { 0 };
libzfs_handle_t *hdl = zhp->zfs_hdl;
ASSERT(!recursive || dsobj == 0);
(void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
(void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value));
if (strlcpy(zc.zc_string, tag, sizeof (zc.zc_string))
@@ -3910,6 +3936,9 @@ zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag,
return (zfs_error(hdl, EZFS_TAGTOOLONG, tag));
zc.zc_cookie = recursive;
zc.zc_temphold = temphold;
zc.zc_cleanup_fd = cleanup_fd;
zc.zc_sendobj = dsobj;
zc.zc_createtxg = createtxg;
if (zfs_ioctl(hdl, ZFS_IOC_HOLD, &zc) != 0) {
char errbuf[ZFS_MAXNAMELEN+32];
@@ -3939,7 +3968,7 @@ zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag,
return (zfs_error(hdl, EZFS_REFTAG_HOLD, errbuf));
case ENOENT:
if (enoent_ok)
return (0);
return (ENOENT);
/* FALLTHROUGH */
default:
return (zfs_standard_error_fmt(hdl, errno, errbuf));
@@ -3949,102 +3978,6 @@ zfs_hold(zfs_handle_t *zhp, const char *snapname, const char *tag,
return (0);
}
struct hold_range_arg {
zfs_handle_t *origin;
const char *fromsnap;
const char *tosnap;
char lastsnapheld[ZFS_MAXNAMELEN];
const char *tag;
boolean_t temphold;
boolean_t seento;
boolean_t seenfrom;
boolean_t holding;
boolean_t recursive;
snapfilter_cb_t *filter_cb;
void *filter_cb_arg;
};
static int
zfs_hold_range_one(zfs_handle_t *zhp, void *arg)
{
struct hold_range_arg *hra = arg;
const char *thissnap;
int error;
thissnap = strchr(zfs_get_name(zhp), '@') + 1;
if (hra->fromsnap && !hra->seenfrom &&
strcmp(hra->fromsnap, thissnap) == 0)
hra->seenfrom = B_TRUE;
/* snap is older or newer than the desired range, ignore it */
if (hra->seento || !hra->seenfrom) {
zfs_close(zhp);
return (0);
}
if (!hra->seento && strcmp(hra->tosnap, thissnap) == 0)
hra->seento = B_TRUE;
if (hra->filter_cb != NULL &&
hra->filter_cb(zhp, hra->filter_cb_arg) == B_FALSE) {
zfs_close(zhp);
return (0);
}
if (hra->holding) {
/* We could be racing with destroy, so ignore ENOENT. */
error = zfs_hold(hra->origin, thissnap, hra->tag,
hra->recursive, hra->temphold, B_TRUE);
if (error == 0) {
(void) strlcpy(hra->lastsnapheld, zfs_get_name(zhp),
sizeof (hra->lastsnapheld));
}
} else {
error = zfs_release(hra->origin, thissnap, hra->tag,
hra->recursive);
}
zfs_close(zhp);
return (error);
}
/*
* Add a user hold on the set of snapshots starting with fromsnap up to
* and including tosnap. If we're unable to to acquire a particular hold,
* undo any holds up to that point.
*/
int
zfs_hold_range(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
const char *tag, boolean_t recursive, boolean_t temphold,
snapfilter_cb_t filter_cb, void *cbarg)
{
struct hold_range_arg arg = { 0 };
int error;
arg.origin = zhp;
arg.fromsnap = fromsnap;
arg.tosnap = tosnap;
arg.tag = tag;
arg.temphold = temphold;
arg.holding = B_TRUE;
arg.recursive = recursive;
arg.seenfrom = (fromsnap == NULL);
arg.filter_cb = filter_cb;
arg.filter_cb_arg = cbarg;
error = zfs_iter_snapshots_sorted(zhp, zfs_hold_range_one, &arg);
/*
* Make sure we either hold the entire range or none.
*/
if (error && arg.lastsnapheld[0] != '\0') {
(void) zfs_release_range(zhp, fromsnap,
(const char *)arg.lastsnapheld, tag, recursive);
}
return (error);
}
int
zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag,
boolean_t recursive)
@@ -4086,26 +4019,6 @@ zfs_release(zfs_handle_t *zhp, const char *snapname, const char *tag,
return (0);
}
/*
* Release a user hold from the set of snapshots starting with fromsnap
* up to and including tosnap.
*/
int
zfs_release_range(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
const char *tag, boolean_t recursive)
{
struct hold_range_arg arg = { 0 };
arg.origin = zhp;
arg.fromsnap = fromsnap;
arg.tosnap = tosnap;
arg.tag = tag;
arg.recursive = recursive;
arg.seenfrom = (fromsnap == NULL);
return (zfs_iter_snapshots_sorted(zhp, zfs_hold_range_one, &arg));
}
uint64_t
zvol_volsize_to_reservation(uint64_t volsize, nvlist_t *props)
{
lib/libzfs/libzfs_diff.c
+826
View File
@@ -0,0 +1,826 @@
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
*/
/*
* zfs diff support
*/
#include <ctype.h>
#include <errno.h>
#include <libintl.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <attr.h>
#include <stddef.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <stropts.h>
#include <pthread.h>
#include <sys/zfs_ioctl.h>
#include <libzfs.h>
#include "libzfs_impl.h"
#define ZDIFF_SNAPDIR "/.zfs/snapshot/"
#define ZDIFF_SHARESDIR "/.zfs/shares/"
#define ZDIFF_PREFIX "zfs-diff-%d"
#define ZDIFF_ADDED '+'
#define ZDIFF_MODIFIED 'M'
#define ZDIFF_REMOVED '-'
#define ZDIFF_RENAMED 'R'
static boolean_t
do_name_cmp(const char *fpath, const char *tpath)
{
char *fname, *tname;
fname = strrchr(fpath, '/') + 1;
tname = strrchr(tpath, '/') + 1;
return (strcmp(fname, tname) == 0);
}
typedef struct differ_info {
zfs_handle_t *zhp;
char *fromsnap;
char *frommnt;
char *tosnap;
char *tomnt;
char *ds;
char *dsmnt;
char *tmpsnap;
char errbuf[1024];
boolean_t isclone;
boolean_t scripted;
boolean_t classify;
boolean_t timestamped;
uint64_t shares;
int zerr;
int cleanupfd;
int outputfd;
int datafd;
} differ_info_t;
/*
* Given a {dsname, object id}, get the object path
*/
static int
get_stats_for_obj(differ_info_t *di, const char *dsname, uint64_t obj,
char *pn, int maxlen, zfs_stat_t *sb)
{
zfs_cmd_t zc = { 0 };
int error;
(void) strlcpy(zc.zc_name, dsname, sizeof (zc.zc_name));
zc.zc_obj = obj;
errno = 0;
error = ioctl(di->zhp->zfs_hdl->libzfs_fd, ZFS_IOC_OBJ_TO_STATS, &zc);
di->zerr = errno;
/* we can get stats even if we failed to get a path */
(void) memcpy(sb, &zc.zc_stat, sizeof (zfs_stat_t));
if (error == 0) {
ASSERT(di->zerr == 0);
(void) strlcpy(pn, zc.zc_value, maxlen);
return (0);
}
if (di->zerr == EPERM) {
(void) snprintf(di->errbuf, sizeof (di->errbuf),
dgettext(TEXT_DOMAIN,
"The sys_config privilege or diff delegated permission "
"is needed\nto discover path names"));
return (-1);
} else {
(void) snprintf(di->errbuf, sizeof (di->errbuf),
dgettext(TEXT_DOMAIN,
"Unable to determine path or stats for "
"object %lld in %s"), obj, dsname);
return (-1);
}
}
/*
* stream_bytes
*
* Prints a file name out a character at a time. If the character is
* not in the range of what we consider "printable" ASCII, display it
* as an escaped 3-digit octal value. ASCII values less than a space
* are all control characters and we declare the upper end as the
* DELete character. This also is the last 7-bit ASCII character.
* We choose to treat all 8-bit ASCII as not printable for this
* application.
*/
static void
stream_bytes(FILE *fp, const char *string)
{
while (*string) {
if (*string > ' ' && *string != '\\' && *string < '\177')
(void) fprintf(fp, "%c", *string++);
else
(void) fprintf(fp, "\\%03o", *string++);
}
}
static void
print_what(FILE *fp, mode_t what)
{
char symbol;
switch (what & S_IFMT) {
case S_IFBLK:
symbol = 'B';
break;
case S_IFCHR:
symbol = 'C';
break;
case S_IFDIR:
symbol = '/';
break;
case S_IFDOOR:
symbol = '>';
break;
case S_IFIFO:
symbol = '|';
break;
case S_IFLNK:
symbol = '@';
break;
case S_IFPORT:
symbol = 'P';
break;
case S_IFSOCK:
symbol = '=';
break;
case S_IFREG:
symbol = 'F';
break;
default:
symbol = '?';
break;
}
(void) fprintf(fp, "%c", symbol);
}
static void
print_cmn(FILE *fp, differ_info_t *di, const char *file)
{
stream_bytes(fp, di->dsmnt);
stream_bytes(fp, file);
}
static void
print_rename(FILE *fp, differ_info_t *di, const char *old, const char *new,
zfs_stat_t *isb)
{
if (di->timestamped)
(void) fprintf(fp, "%10lld.%09lld\t",
(longlong_t)isb->zs_ctime[0],
(longlong_t)isb->zs_ctime[1]);
(void) fprintf(fp, "%c\t", ZDIFF_RENAMED);
if (di->classify) {
print_what(fp, isb->zs_mode);
(void) fprintf(fp, "\t");
}
print_cmn(fp, di, old);
if (di->scripted)
(void) fprintf(fp, "\t");
else
(void) fprintf(fp, " -> ");
print_cmn(fp, di, new);
(void) fprintf(fp, "\n");
}
static void
print_link_change(FILE *fp, differ_info_t *di, int delta, const char *file,
zfs_stat_t *isb)
{
if (di->timestamped)
(void) fprintf(fp, "%10lld.%09lld\t",
(longlong_t)isb->zs_ctime[0],
(longlong_t)isb->zs_ctime[1]);
(void) fprintf(fp, "%c\t", ZDIFF_MODIFIED);
if (di->classify) {
print_what(fp, isb->zs_mode);
(void) fprintf(fp, "\t");
}
print_cmn(fp, di, file);
(void) fprintf(fp, "\t(%+d)", delta);
(void) fprintf(fp, "\n");
}
static void
print_file(FILE *fp, differ_info_t *di, char type, const char *file,
zfs_stat_t *isb)
{
if (di->timestamped)
(void) fprintf(fp, "%10lld.%09lld\t",
(longlong_t)isb->zs_ctime[0],
(longlong_t)isb->zs_ctime[1]);
(void) fprintf(fp, "%c\t", type);
if (di->classify) {
print_what(fp, isb->zs_mode);
(void) fprintf(fp, "\t");
}
print_cmn(fp, di, file);
(void) fprintf(fp, "\n");
}
static int
write_inuse_diffs_one(FILE *fp, differ_info_t *di, uint64_t dobj)
{
struct zfs_stat fsb, tsb;
boolean_t same_name;
mode_t fmode, tmode;
char fobjname[MAXPATHLEN], tobjname[MAXPATHLEN];
int fobjerr, tobjerr;
int change;
if (dobj == di->shares)
return (0);
/*
* Check the from and to snapshots for info on the object. If
* we get ENOENT, then the object just didn't exist in that
* snapshot. If we get ENOTSUP, then we tried to get
* info on a non-ZPL object, which we don't care about anyway.
*/
fobjerr = get_stats_for_obj(di, di->fromsnap, dobj, fobjname,
MAXPATHLEN, &fsb);
if (fobjerr && di->zerr != ENOENT && di->zerr != ENOTSUP)
return (-1);
tobjerr = get_stats_for_obj(di, di->tosnap, dobj, tobjname,
MAXPATHLEN, &tsb);
if (tobjerr && di->zerr != ENOENT && di->zerr != ENOTSUP)
return (-1);
/*
* Unallocated object sharing the same meta dnode block
*/
if (fobjerr && tobjerr) {
ASSERT(di->zerr == ENOENT || di->zerr == ENOTSUP);
di->zerr = 0;
return (0);
}
di->zerr = 0; /* negate get_stats_for_obj() from side that failed */
fmode = fsb.zs_mode & S_IFMT;
tmode = tsb.zs_mode & S_IFMT;
if (fmode == S_IFDIR || tmode == S_IFDIR || fsb.zs_links == 0 ||
tsb.zs_links == 0)
change = 0;
else
change = tsb.zs_links - fsb.zs_links;
if (fobjerr) {
if (change) {
print_link_change(fp, di, change, tobjname, &tsb);
return (0);
}
print_file(fp, di, ZDIFF_ADDED, tobjname, &tsb);
return (0);
} else if (tobjerr) {
if (change) {
print_link_change(fp, di, change, fobjname, &fsb);
return (0);
}
print_file(fp, di, ZDIFF_REMOVED, fobjname, &fsb);
return (0);
}
if (fmode != tmode && fsb.zs_gen == tsb.zs_gen)
tsb.zs_gen++; /* Force a generational difference */
same_name = do_name_cmp(fobjname, tobjname);
/* Simple modification or no change */
if (fsb.zs_gen == tsb.zs_gen) {
/* No apparent changes. Could we assert !this? */
if (fsb.zs_ctime[0] == tsb.zs_ctime[0] &&
fsb.zs_ctime[1] == tsb.zs_ctime[1])
return (0);
if (change) {
print_link_change(fp, di, change,
change > 0 ? fobjname : tobjname, &tsb);
} else if (same_name) {
print_file(fp, di, ZDIFF_MODIFIED, fobjname, &tsb);
} else {
print_rename(fp, di, fobjname, tobjname, &tsb);
}
return (0);
} else {
/* file re-created or object re-used */
print_file(fp, di, ZDIFF_REMOVED, fobjname, &fsb);
print_file(fp, di, ZDIFF_ADDED, tobjname, &tsb);
return (0);
}
}
static int
write_inuse_diffs(FILE *fp, differ_info_t *di, dmu_diff_record_t *dr)
{
uint64_t o;
int err;
for (o = dr->ddr_first; o <= dr->ddr_last; o++) {
if (err = write_inuse_diffs_one(fp, di, o))
return (err);
}
return (0);
}
static int
describe_free(FILE *fp, differ_info_t *di, uint64_t object, char *namebuf,
int maxlen)
{
struct zfs_stat sb;
if (get_stats_for_obj(di, di->fromsnap, object, namebuf,
maxlen, &sb) != 0) {
/* Let it slide, if in the delete queue on from side */
if (di->zerr == ENOENT && sb.zs_links == 0) {
di->zerr = 0;
return (0);
}
return (-1);
}
print_file(fp, di, ZDIFF_REMOVED, namebuf, &sb);
return (0);
}
static int
write_free_diffs(FILE *fp, differ_info_t *di, dmu_diff_record_t *dr)
{
zfs_cmd_t zc = { 0 };
libzfs_handle_t *lhdl = di->zhp->zfs_hdl;
char fobjname[MAXPATHLEN];
(void) strlcpy(zc.zc_name, di->fromsnap, sizeof (zc.zc_name));
zc.zc_obj = dr->ddr_first - 1;
ASSERT(di->zerr == 0);
while (zc.zc_obj < dr->ddr_last) {
int err;
err = ioctl(lhdl->libzfs_fd, ZFS_IOC_NEXT_OBJ, &zc);
if (err == 0) {
if (zc.zc_obj == di->shares) {
zc.zc_obj++;
continue;
}
if (zc.zc_obj > dr->ddr_last) {
break;
}
err = describe_free(fp, di, zc.zc_obj, fobjname,
MAXPATHLEN);
if (err)
break;
} else if (errno == ESRCH) {
break;
} else {
(void) snprintf(di->errbuf, sizeof (di->errbuf),
dgettext(TEXT_DOMAIN,
"next allocated object (> %lld) find failure"),
zc.zc_obj);
di->zerr = errno;
break;
}
}
if (di->zerr)
return (-1);
return (0);
}
static void *
differ(void *arg)
{
differ_info_t *di = arg;
dmu_diff_record_t dr;
FILE *ofp;
int err = 0;
if ((ofp = fdopen(di->outputfd, "w")) == NULL) {
di->zerr = errno;
(void) strerror_r(errno, di->errbuf, sizeof (di->errbuf));
(void) close(di->datafd);
return ((void *)-1);
}
for (;;) {
char *cp = (char *)&dr;
int len = sizeof (dr);
int rv;
do {
rv = read(di->datafd, cp, len);
cp += rv;
len -= rv;
} while (len > 0 && rv > 0);
if (rv < 0 || (rv == 0 && len != sizeof (dr))) {
di->zerr = EPIPE;
break;
} else if (rv == 0) {
/* end of file at a natural breaking point */
break;
}
switch (dr.ddr_type) {
case DDR_FREE:
err = write_free_diffs(ofp, di, &dr);
break;
case DDR_INUSE:
err = write_inuse_diffs(ofp, di, &dr);
break;
default:
di->zerr = EPIPE;
break;
}
if (err || di->zerr)
break;
}
(void) fclose(ofp);
(void) close(di->datafd);
if (err)
return ((void *)-1);
if (di->zerr) {
ASSERT(di->zerr == EINVAL);
(void) snprintf(di->errbuf, sizeof (di->errbuf),
dgettext(TEXT_DOMAIN,
"Internal error: bad data from diff IOCTL"));
return ((void *)-1);
}
return ((void *)0);
}
static int
find_shares_object(differ_info_t *di)
{
char fullpath[MAXPATHLEN];
struct stat64 sb = { 0 };
(void) strlcpy(fullpath, di->dsmnt, MAXPATHLEN);
(void) strlcat(fullpath, ZDIFF_SHARESDIR, MAXPATHLEN);
if (stat64(fullpath, &sb) != 0) {
(void) snprintf(di->errbuf, sizeof (di->errbuf),
dgettext(TEXT_DOMAIN, "Cannot stat %s"), fullpath);
return (zfs_error(di->zhp->zfs_hdl, EZFS_DIFF, di->errbuf));
}
di->shares = (uint64_t)sb.st_ino;
return (0);
}
static int
make_temp_snapshot(differ_info_t *di)
{
libzfs_handle_t *hdl = di->zhp->zfs_hdl;
zfs_cmd_t zc = { 0 };
(void) snprintf(zc.zc_value, sizeof (zc.zc_value),
ZDIFF_PREFIX, getpid());
(void) strlcpy(zc.zc_name, di->ds, sizeof (zc.zc_name));
zc.zc_cleanup_fd = di->cleanupfd;
if (ioctl(hdl->libzfs_fd, ZFS_IOC_TMP_SNAPSHOT, &zc) != 0) {
int err = errno;
if (err == EPERM) {
(void) snprintf(di->errbuf, sizeof (di->errbuf),
dgettext(TEXT_DOMAIN, "The diff delegated "
"permission is needed in order\nto create a "
"just-in-time snapshot for diffing\n"));
return (zfs_error(hdl, EZFS_DIFF, di->errbuf));
} else {
(void) snprintf(di->errbuf, sizeof (di->errbuf),
dgettext(TEXT_DOMAIN, "Cannot create just-in-time "
"snapshot of '%s'"), zc.zc_name);
return (zfs_standard_error(hdl, err, di->errbuf));
}
}
di->tmpsnap = zfs_strdup(hdl, zc.zc_value);
di->tosnap = zfs_asprintf(hdl, "%s@%s", di->ds, di->tmpsnap);
return (0);
}
static void
teardown_differ_info(differ_info_t *di)
{
free(di->ds);
free(di->dsmnt);
free(di->fromsnap);
free(di->frommnt);
free(di->tosnap);
free(di->tmpsnap);
free(di->tomnt);
(void) close(di->cleanupfd);
}
static int
get_snapshot_names(differ_info_t *di, const char *fromsnap,
const char *tosnap)
{
libzfs_handle_t *hdl = di->zhp->zfs_hdl;
char *atptrf = NULL;
char *atptrt = NULL;
int fdslen, fsnlen;
int tdslen, tsnlen;
/*
* Can accept
* dataset@snap1
* dataset@snap1 dataset@snap2
* dataset@snap1 @snap2
* dataset@snap1 dataset
* @snap1 dataset@snap2
*/
if (tosnap == NULL) {
/* only a from snapshot given, must be valid */
(void) snprintf(di->errbuf, sizeof (di->errbuf),
dgettext(TEXT_DOMAIN,
"Badly formed snapshot name %s"), fromsnap);
if (!zfs_validate_name(hdl, fromsnap, ZFS_TYPE_SNAPSHOT,
B_FALSE)) {
return (zfs_error(hdl, EZFS_INVALIDNAME,
di->errbuf));
}
atptrf = strchr(fromsnap, '@');
ASSERT(atptrf != NULL);
fdslen = atptrf - fromsnap;
di->fromsnap = zfs_strdup(hdl, fromsnap);
di->ds = zfs_strdup(hdl, fromsnap);
di->ds[fdslen] = '\0';
/* the to snap will be a just-in-time snap of the head */
return (make_temp_snapshot(di));
}
(void) snprintf(di->errbuf, sizeof (di->errbuf),
dgettext(TEXT_DOMAIN,
"Unable to determine which snapshots to compare"));
atptrf = strchr(fromsnap, '@');
atptrt = strchr(tosnap, '@');
fdslen = atptrf ? atptrf - fromsnap : strlen(fromsnap);
tdslen = atptrt ? atptrt - tosnap : strlen(tosnap);
fsnlen = strlen(fromsnap) - fdslen; /* includes @ sign */
tsnlen = strlen(tosnap) - tdslen; /* includes @ sign */
if (fsnlen <= 1 || tsnlen == 1 || (fdslen == 0 && tdslen == 0) ||
(fsnlen == 0 && tsnlen == 0)) {
return (zfs_error(hdl, EZFS_INVALIDNAME, di->errbuf));
} else if ((fdslen > 0 && tdslen > 0) &&
((tdslen != fdslen || strncmp(fromsnap, tosnap, fdslen) != 0))) {
/*
* not the same dataset name, might be okay if
* tosnap is a clone of a fromsnap descendant.
*/
char origin[ZFS_MAXNAMELEN];
zprop_source_t src;
zfs_handle_t *zhp;
di->ds = zfs_alloc(di->zhp->zfs_hdl, tdslen + 1);
(void) strncpy(di->ds, tosnap, tdslen);
di->ds[tdslen] = '\0';
zhp = zfs_open(hdl, di->ds, ZFS_TYPE_FILESYSTEM);
while (zhp != NULL) {
(void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN,
origin, sizeof (origin), &src, NULL, 0, B_FALSE);
if (strncmp(origin, fromsnap, fsnlen) == 0)
break;
(void) zfs_close(zhp);
zhp = zfs_open(hdl, origin, ZFS_TYPE_FILESYSTEM);
}
if (zhp == NULL) {
(void) snprintf(di->errbuf, sizeof (di->errbuf),
dgettext(TEXT_DOMAIN,
"Not an earlier snapshot from the same fs"));
return (zfs_error(hdl, EZFS_INVALIDNAME, di->errbuf));
} else {
(void) zfs_close(zhp);
}
di->isclone = B_TRUE;
di->fromsnap = zfs_strdup(hdl, fromsnap);
if (tsnlen) {
di->tosnap = zfs_strdup(hdl, tosnap);
} else {
return (make_temp_snapshot(di));
}
} else {
int dslen = fdslen ? fdslen : tdslen;
di->ds = zfs_alloc(hdl, dslen + 1);
(void) strncpy(di->ds, fdslen ? fromsnap : tosnap, dslen);
di->ds[dslen] = '\0';
di->fromsnap = zfs_asprintf(hdl, "%s%s", di->ds, atptrf);
if (tsnlen) {
di->tosnap = zfs_asprintf(hdl, "%s%s", di->ds, atptrt);
} else {
return (make_temp_snapshot(di));
}
}
return (0);
}
static int
get_mountpoint(differ_info_t *di, char *dsnm, char **mntpt)
{
boolean_t mounted;
mounted = is_mounted(di->zhp->zfs_hdl, dsnm, mntpt);
if (mounted == B_FALSE) {
(void) snprintf(di->errbuf, sizeof (di->errbuf),
dgettext(TEXT_DOMAIN,
"Cannot diff an unmounted snapshot"));
return (zfs_error(di->zhp->zfs_hdl, EZFS_BADTYPE, di->errbuf));
}
/* Avoid a double slash at the beginning of root-mounted datasets */
if (**mntpt == '/' && *(*mntpt + 1) == '\0')
**mntpt = '\0';
return (0);
}
static int
get_mountpoints(differ_info_t *di)
{
char *strptr;
char *frommntpt;
/*
* first get the mountpoint for the parent dataset
*/
if (get_mountpoint(di, di->ds, &di->dsmnt) != 0)
return (-1);
strptr = strchr(di->tosnap, '@');
ASSERT3P(strptr, !=, NULL);
di->tomnt = zfs_asprintf(di->zhp->zfs_hdl, "%s%s%s", di->dsmnt,
ZDIFF_SNAPDIR, ++strptr);
strptr = strchr(di->fromsnap, '@');
ASSERT3P(strptr, !=, NULL);
frommntpt = di->dsmnt;
if (di->isclone) {
char *mntpt;
int err;
*strptr = '\0';
err = get_mountpoint(di, di->fromsnap, &mntpt);
*strptr = '@';
if (err != 0)
return (-1);
frommntpt = mntpt;
}
di->frommnt = zfs_asprintf(di->zhp->zfs_hdl, "%s%s%s", frommntpt,
ZDIFF_SNAPDIR, ++strptr);
if (di->isclone)
free(frommntpt);
return (0);
}
static int
setup_differ_info(zfs_handle_t *zhp, const char *fromsnap,
const char *tosnap, differ_info_t *di)
{
di->zhp = zhp;
di->cleanupfd = open(ZFS_DEV, O_RDWR|O_EXCL);
VERIFY(di->cleanupfd >= 0);
if (get_snapshot_names(di, fromsnap, tosnap) != 0)
return (-1);
if (get_mountpoints(di) != 0)
return (-1);
if (find_shares_object(di) != 0)
return (-1);
return (0);
}
int
zfs_show_diffs(zfs_handle_t *zhp, int outfd, const char *fromsnap,
const char *tosnap, int flags)
{
zfs_cmd_t zc = { 0 };
char errbuf[1024];
differ_info_t di = { 0 };
pthread_t tid;
int pipefd[2];
int iocerr;
(void) snprintf(errbuf, sizeof (errbuf),
dgettext(TEXT_DOMAIN, "zfs diff failed"));
if (setup_differ_info(zhp, fromsnap, tosnap, &di)) {
teardown_differ_info(&di);
return (-1);
}
if (pipe(pipefd)) {
zfs_error_aux(zhp->zfs_hdl, strerror(errno));
teardown_differ_info(&di);
return (zfs_error(zhp->zfs_hdl, EZFS_PIPEFAILED, errbuf));
}
di.scripted = (flags & ZFS_DIFF_PARSEABLE);
di.classify = (flags & ZFS_DIFF_CLASSIFY);
di.timestamped = (flags & ZFS_DIFF_TIMESTAMP);
di.outputfd = outfd;
di.datafd = pipefd[0];
if (pthread_create(&tid, NULL, differ, &di)) {
zfs_error_aux(zhp->zfs_hdl, strerror(errno));
(void) close(pipefd[0]);
(void) close(pipefd[1]);
teardown_differ_info(&di);
return (zfs_error(zhp->zfs_hdl,
EZFS_THREADCREATEFAILED, errbuf));
}
/* do the ioctl() */
(void) strlcpy(zc.zc_value, di.fromsnap, strlen(di.fromsnap) + 1);
(void) strlcpy(zc.zc_name, di.tosnap, strlen(di.tosnap) + 1);
zc.zc_cookie = pipefd[1];
iocerr = ioctl(zhp->zfs_hdl->libzfs_fd, ZFS_IOC_DIFF, &zc);
if (iocerr != 0) {
(void) snprintf(errbuf, sizeof (errbuf),
dgettext(TEXT_DOMAIN, "Unable to obtain diffs"));
if (errno == EPERM) {
zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
"\n The sys_mount privilege or diff delegated "
"permission is needed\n to execute the "
"diff ioctl"));
} else if (errno == EXDEV) {
zfs_error_aux(zhp->zfs_hdl, dgettext(TEXT_DOMAIN,
"\n Not an earlier snapshot from the same fs"));
} else if (errno != EPIPE || di.zerr == 0) {
zfs_error_aux(zhp->zfs_hdl, strerror(errno));
}
(void) close(pipefd[1]);
(void) pthread_cancel(tid);
(void) pthread_join(tid, NULL);
teardown_differ_info(&di);
if (di.zerr != 0 && di.zerr != EPIPE) {
zfs_error_aux(zhp->zfs_hdl, strerror(di.zerr));
return (zfs_error(zhp->zfs_hdl, EZFS_DIFF, di.errbuf));
} else {
return (zfs_error(zhp->zfs_hdl, EZFS_DIFFDATA, errbuf));
}
}
(void) close(pipefd[1]);
(void) pthread_join(tid, NULL);
if (di.zerr != 0) {
zfs_error_aux(zhp->zfs_hdl, strerror(di.zerr));
return (zfs_error(zhp->zfs_hdl, EZFS_DIFF, di.errbuf));
}
teardown_differ_info(&di);
return (0);
}
lib/libzfs/libzfs_import.c
+12 -2
View File
@@ -19,8 +19,7 @@
* CDDL HEADER END
*/
/*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
*/
/*
@@ -1559,6 +1558,17 @@ zpool_in_use(libzfs_handle_t *hdl, int fd, pool_state_t *state, char **namestr,
switch (stateval) {
case POOL_STATE_EXPORTED:
/*
* A pool with an exported state may in fact be imported
* read-only, so check the in-core state to see if it's
* active and imported read-only. If it is, set
* its state to active.
*/
if (pool_active(hdl, name, guid, &isactive) == 0 && isactive &&
(zhp = zpool_open_canfail(hdl, name)) != NULL &&
zpool_get_prop_int(zhp, ZPOOL_PROP_READONLY, NULL))
stateval = POOL_STATE_ACTIVE;
ret = B_TRUE;
break;
lib/libzfs/libzfs_mount.c
+41 -43
View File
@@ -270,6 +270,12 @@ zfs_mount(zfs_handle_t *zhp, const char *options, int flags)
else
(void) strlcpy(mntopts, options, sizeof (mntopts));
/*
* If the pool is imported read-only then all mounts must be read-only
*/
if (zpool_get_prop_int(zhp->zpool_hdl, ZPOOL_PROP_READONLY, NULL))
flags |= MS_RDONLY;
if (!zfs_is_mountable(zhp, mountpoint, sizeof (mountpoint), NULL))
return (0);
@@ -437,18 +443,14 @@ zfs_is_shared(zfs_handle_t *zhp)
int
zfs_share(zfs_handle_t *zhp)
{
if (ZFS_IS_VOLUME(zhp))
return (0);
assert(!ZFS_IS_VOLUME(zhp));
return (zfs_share_proto(zhp, share_all_proto));
}
int
zfs_unshare(zfs_handle_t *zhp)
{
if (ZFS_IS_VOLUME(zhp))
return (0);
assert(!ZFS_IS_VOLUME(zhp));
return (zfs_unshareall(zhp));
}
@@ -979,18 +981,29 @@ remove_mountpoint(zfs_handle_t *zhp)
}
}
typedef struct mount_cbdata {
zfs_handle_t **cb_datasets;
int cb_used;
int cb_alloc;
} mount_cbdata_t;
void
libzfs_add_handle(get_all_cb_t *cbp, zfs_handle_t *zhp)
{
if (cbp->cb_alloc == cbp->cb_used) {
size_t newsz;
void *ptr;
newsz = cbp->cb_alloc ? cbp->cb_alloc * 2 : 64;
ptr = zfs_realloc(zhp->zfs_hdl,
cbp->cb_handles, cbp->cb_alloc * sizeof (void *),
newsz * sizeof (void *));
cbp->cb_handles = ptr;
cbp->cb_alloc = newsz;
}
cbp->cb_handles[cbp->cb_used++] = zhp;
}
static int
mount_cb(zfs_handle_t *zhp, void *data)
{
mount_cbdata_t *cbp = data;
get_all_cb_t *cbp = data;
if (!(zfs_get_type(zhp) & (ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME))) {
if (!(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM)) {
zfs_close(zhp);
return (0);
}
@@ -1000,25 +1013,16 @@ mount_cb(zfs_handle_t *zhp, void *data)
return (0);
}
if (cbp->cb_alloc == cbp->cb_used) {
void *ptr;
if ((ptr = zfs_realloc(zhp->zfs_hdl,
cbp->cb_datasets, cbp->cb_alloc * sizeof (void *),
cbp->cb_alloc * 2 * sizeof (void *))) == NULL)
return (-1);
cbp->cb_datasets = ptr;
cbp->cb_alloc *= 2;
libzfs_add_handle(cbp, zhp);
if (zfs_iter_filesystems(zhp, mount_cb, cbp) != 0) {
zfs_close(zhp);
return (-1);
}
cbp->cb_datasets[cbp->cb_used++] = zhp;
return (zfs_iter_filesystems(zhp, mount_cb, cbp));
return (0);
}
static int
dataset_cmp(const void *a, const void *b)
int
libzfs_dataset_cmp(const void *a, const void *b)
{
zfs_handle_t **za = (zfs_handle_t **)a;
zfs_handle_t **zb = (zfs_handle_t **)b;
@@ -1056,7 +1060,7 @@ dataset_cmp(const void *a, const void *b)
int
zpool_enable_datasets(zpool_handle_t *zhp, const char *mntopts, int flags)
{
mount_cbdata_t cb = { 0 };
get_all_cb_t cb = { 0 };
libzfs_handle_t *hdl = zhp->zpool_hdl;
zfs_handle_t *zfsp;
int i, ret = -1;
@@ -1065,23 +1069,17 @@ zpool_enable_datasets(zpool_handle_t *zhp, const char *mntopts, int flags)
/*
* Gather all non-snap datasets within the pool.
*/
if ((cb.cb_datasets = zfs_alloc(hdl, 4 * sizeof (void *))) == NULL)
return (-1);
cb.cb_alloc = 4;
if ((zfsp = zfs_open(hdl, zhp->zpool_name, ZFS_TYPE_DATASET)) == NULL)
goto out;
cb.cb_datasets[0] = zfsp;
cb.cb_used = 1;
libzfs_add_handle(&cb, zfsp);
if (zfs_iter_filesystems(zfsp, mount_cb, &cb) != 0)
goto out;
/*
* Sort the datasets by mountpoint.
*/
qsort(cb.cb_datasets, cb.cb_used, sizeof (void *), dataset_cmp);
qsort(cb.cb_handles, cb.cb_used, sizeof (void *),
libzfs_dataset_cmp);
/*
* And mount all the datasets, keeping track of which ones
@@ -1093,7 +1091,7 @@ zpool_enable_datasets(zpool_handle_t *zhp, const char *mntopts, int flags)
ret = 0;
for (i = 0; i < cb.cb_used; i++) {
if (zfs_mount(cb.cb_datasets[i], mntopts, flags) != 0)
if (zfs_mount(cb.cb_handles[i], mntopts, flags) != 0)
ret = -1;
else
good[i] = 1;
@@ -1106,7 +1104,7 @@ zpool_enable_datasets(zpool_handle_t *zhp, const char *mntopts, int flags)
* zfs_alloc is supposed to exit if memory isn't available.
*/
for (i = 0; i < cb.cb_used; i++) {
if (good[i] && zfs_share(cb.cb_datasets[i]) != 0)
if (good[i] && zfs_share(cb.cb_handles[i]) != 0)
ret = -1;
}
@@ -1114,8 +1112,8 @@ zpool_enable_datasets(zpool_handle_t *zhp, const char *mntopts, int flags)
out:
for (i = 0; i < cb.cb_used; i++)
zfs_close(cb.cb_datasets[i]);
free(cb.cb_datasets);
zfs_close(cb.cb_handles[i]);
free(cb.cb_handles);
return (ret);
}
lib/libzfs/libzfs_pool.c
+159 -103
View File
@@ -44,16 +44,15 @@
static int read_efi_label(nvlist_t *config, diskaddr_t *sb);
#if defined(__i386) || defined(__amd64)
#define BOOTCMD "installgrub(1M)"
#else
#define BOOTCMD "installboot(1M)"
#endif
#define DISK_ROOT "/dev/dsk"
#define RDISK_ROOT "/dev/rdsk"
#define BACKUP_SLICE "s2"
typedef struct prop_flags {
int create:1; /* Validate property on creation */
int import:1; /* Validate property on import */
} prop_flags_t;
/*
* ====================================================================
* zpool property functions
@@ -376,7 +375,7 @@ pool_is_bootable(zpool_handle_t *zhp)
*/
static nvlist_t *
zpool_valid_proplist(libzfs_handle_t *hdl, const char *poolname,
nvlist_t *props, uint64_t version, boolean_t create_or_import, char *errbuf)
nvlist_t *props, uint64_t version, prop_flags_t flags, char *errbuf)
{
nvpair_t *elem;
nvlist_t *retprops;
@@ -433,7 +432,7 @@ zpool_valid_proplist(libzfs_handle_t *hdl, const char *poolname,
break;
case ZPOOL_PROP_BOOTFS:
if (create_or_import) {
if (flags.create || flags.import) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' cannot be set at creation "
"or import time"), propname);
@@ -486,7 +485,7 @@ zpool_valid_proplist(libzfs_handle_t *hdl, const char *poolname,
break;
case ZPOOL_PROP_ALTROOT:
if (!create_or_import) {
if (!flags.create && !flags.import) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' can only be set during pool "
"creation or import"), propname);
@@ -541,6 +540,16 @@ zpool_valid_proplist(libzfs_handle_t *hdl, const char *poolname,
*slash = '/';
break;
case ZPOOL_PROP_READONLY:
if (!flags.import) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"property '%s' can only be set at "
"import time"), propname);
(void) zfs_error(hdl, EZFS_BADPROP, errbuf);
goto error;
}
break;
}
}
@@ -562,6 +571,7 @@ zpool_set_prop(zpool_handle_t *zhp, const char *propname, const char *propval)
nvlist_t *nvl = NULL;
nvlist_t *realprops;
uint64_t version;
prop_flags_t flags = { 0 };
(void) snprintf(errbuf, sizeof (errbuf),
dgettext(TEXT_DOMAIN, "cannot set property for '%s'"),
@@ -577,7 +587,7 @@ zpool_set_prop(zpool_handle_t *zhp, const char *propname, const char *propval)
version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL);
if ((realprops = zpool_valid_proplist(zhp->zpool_hdl,
zhp->zpool_name, nvl, version, B_FALSE, errbuf)) == NULL) {
zhp->zpool_name, nvl, version, flags, errbuf)) == NULL) {
nvlist_free(nvl);
return (-1);
}
@@ -884,8 +894,10 @@ zpool_create(libzfs_handle_t *hdl, const char *pool, nvlist_t *nvroot,
return (-1);
if (props) {
prop_flags_t flags = { .create = B_TRUE, .import = B_FALSE };
if ((zc_props = zpool_valid_proplist(hdl, pool, props,
SPA_VERSION_1, B_TRUE, msg)) == NULL) {
SPA_VERSION_1, flags, msg)) == NULL) {
goto create_failed;
}
}
@@ -1003,13 +1015,12 @@ zpool_destroy(zpool_handle_t *zhp)
char msg[1024];
if (zhp->zpool_state == POOL_STATE_ACTIVE &&
(zfp = zfs_open(zhp->zpool_hdl, zhp->zpool_name,
ZFS_TYPE_FILESYSTEM)) == NULL)
(zfp = zfs_open(hdl, zhp->zpool_name, ZFS_TYPE_FILESYSTEM)) == NULL)
return (-1);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_DESTROY, &zc) != 0) {
if (zfs_ioctl(hdl, ZFS_IOC_POOL_DESTROY, &zc) != 0) {
(void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN,
"cannot destroy '%s'"), zhp->zpool_name);
@@ -1092,7 +1103,7 @@ zpool_add(zpool_handle_t *zhp, nvlist_t *nvroot)
return (-1);
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_VDEV_ADD, &zc) != 0) {
if (zfs_ioctl(hdl, ZFS_IOC_VDEV_ADD, &zc) != 0) {
switch (errno) {
case EBUSY:
/*
@@ -1208,19 +1219,23 @@ zpool_export_force(zpool_handle_t *zhp)
static void
zpool_rewind_exclaim(libzfs_handle_t *hdl, const char *name, boolean_t dryrun,
nvlist_t *rbi)
nvlist_t *config)
{
nvlist_t *nv = NULL;
uint64_t rewindto;
int64_t loss = -1;
struct tm t;
char timestr[128];
if (!hdl->libzfs_printerr || rbi == NULL)
if (!hdl->libzfs_printerr || config == NULL)
return;
if (nvlist_lookup_uint64(rbi, ZPOOL_CONFIG_LOAD_TIME, &rewindto) != 0)
if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, &nv) != 0)
return;
(void) nvlist_lookup_int64(rbi, ZPOOL_CONFIG_REWIND_TIME, &loss);
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_LOAD_TIME, &rewindto) != 0)
return;
(void) nvlist_lookup_int64(nv, ZPOOL_CONFIG_REWIND_TIME, &loss);
if (localtime_r((time_t *)&rewindto, &t) != NULL &&
strftime(timestr, 128, 0, &t) != 0) {
@@ -1255,6 +1270,7 @@ void
zpool_explain_recover(libzfs_handle_t *hdl, const char *name, int reason,
nvlist_t *config)
{
nvlist_t *nv = NULL;
int64_t loss = -1;
uint64_t edata = UINT64_MAX;
uint64_t rewindto;
@@ -1270,12 +1286,12 @@ zpool_explain_recover(libzfs_handle_t *hdl, const char *name, int reason,
(void) printf(dgettext(TEXT_DOMAIN, "\t"));
/* All attempted rewinds failed if ZPOOL_CONFIG_LOAD_TIME missing */
if (nvlist_lookup_uint64(config,
ZPOOL_CONFIG_LOAD_TIME, &rewindto) != 0)
if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, &nv) != 0 ||
nvlist_lookup_uint64(nv, ZPOOL_CONFIG_LOAD_TIME, &rewindto) != 0)
goto no_info;
(void) nvlist_lookup_int64(config, ZPOOL_CONFIG_REWIND_TIME, &loss);
(void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_LOAD_DATA_ERRORS,
(void) nvlist_lookup_int64(nv, ZPOOL_CONFIG_REWIND_TIME, &loss);
(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_LOAD_DATA_ERRORS,
&edata);
(void) printf(dgettext(TEXT_DOMAIN,
@@ -1359,12 +1375,40 @@ zpool_import(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
}
}
ret = zpool_import_props(hdl, config, newname, props, B_FALSE);
ret = zpool_import_props(hdl, config, newname, props,
ZFS_IMPORT_NORMAL);
if (props)
nvlist_free(props);
return (ret);
}
static void
print_vdev_tree(libzfs_handle_t *hdl, const char *name, nvlist_t *nv,
int indent)
{
nvlist_t **child;
uint_t c, children;
char *vname;
uint64_t is_log = 0;
(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG,
&is_log);
if (name != NULL)
(void) printf("\t%*s%s%s\n", indent, "", name,
is_log ? " [log]" : "");
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) != 0)
return;
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(hdl, NULL, child[c], B_TRUE);
print_vdev_tree(hdl, vname, child[c], indent + 2);
free(vname);
}
}
/*
* Import the given pool using the known configuration and a list of
* properties to be set. The configuration should have come from
@@ -1373,15 +1417,17 @@ zpool_import(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
*/
int
zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
nvlist_t *props, boolean_t importfaulted)
nvlist_t *props, int flags)
{
zfs_cmd_t zc = { 0 };
zpool_rewind_policy_t policy;
nvlist_t *nvi = NULL;
nvlist_t *nv = NULL;
nvlist_t *nvinfo = NULL;
nvlist_t *missing = NULL;
char *thename;
char *origname;
uint64_t returned_size;
int ret;
int error = 0;
char errbuf[1024];
verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
@@ -1402,12 +1448,13 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
if (props) {
uint64_t version;
prop_flags_t flags = { .create = B_FALSE, .import = B_TRUE };
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
&version) == 0);
if ((props = zpool_valid_proplist(hdl, origname,
props, version, B_TRUE, errbuf)) == NULL) {
props, version, flags, errbuf)) == NULL) {
return (-1);
} else if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) {
nvlist_free(props);
@@ -1424,27 +1471,36 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
nvlist_free(props);
return (-1);
}
returned_size = zc.zc_nvlist_conf_size + 512;
if (zcmd_alloc_dst_nvlist(hdl, &zc, returned_size) != 0) {
if (zcmd_alloc_dst_nvlist(hdl, &zc, zc.zc_nvlist_conf_size * 2) != 0) {
nvlist_free(props);
return (-1);
}
zc.zc_cookie = (uint64_t)importfaulted;
ret = 0;
if (zfs_ioctl(hdl, ZFS_IOC_POOL_IMPORT, &zc) != 0) {
zc.zc_cookie = flags;
while ((ret = zfs_ioctl(hdl, ZFS_IOC_POOL_IMPORT, &zc)) != 0 &&
errno == ENOMEM) {
if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) {
zcmd_free_nvlists(&zc);
return (-1);
}
}
if (ret != 0)
error = errno;
(void) zcmd_read_dst_nvlist(hdl, &zc, &nv);
zpool_get_rewind_policy(config, &policy);
if (error) {
char desc[1024];
(void) zcmd_read_dst_nvlist(hdl, &zc, &nvi);
zpool_get_rewind_policy(config, &policy);
/*
* Dry-run failed, but we print out what success
* looks like if we found a best txg
*/
if ((policy.zrp_request & ZPOOL_TRY_REWIND) && nvi) {
if (policy.zrp_request & ZPOOL_TRY_REWIND) {
zpool_rewind_exclaim(hdl, newname ? origname : thename,
B_TRUE, nvi);
nvlist_free(nvi);
B_TRUE, nv);
nvlist_free(nv);
return (-1);
}
@@ -1457,7 +1513,7 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
dgettext(TEXT_DOMAIN, "cannot import '%s' as '%s'"),
origname, thename);
switch (errno) {
switch (error) {
case ENOTSUP:
/*
* Unsupported version.
@@ -1475,15 +1531,32 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
(void) zfs_error(hdl, EZFS_BADDEV, desc);
break;
case ENXIO:
if (nv && nvlist_lookup_nvlist(nv,
ZPOOL_CONFIG_LOAD_INFO, &nvinfo) == 0 &&
nvlist_lookup_nvlist(nvinfo,
ZPOOL_CONFIG_MISSING_DEVICES, &missing) == 0) {
(void) printf(dgettext(TEXT_DOMAIN,
"The devices below are missing, use "
"'-m' to import the pool anyway:\n"));
print_vdev_tree(hdl, NULL, missing, 2);
(void) printf("\n");
}
(void) zpool_standard_error(hdl, error, desc);
break;
case EEXIST:
(void) zpool_standard_error(hdl, error, desc);
break;
default:
(void) zcmd_read_dst_nvlist(hdl, &zc, &nvi);
(void) zpool_standard_error(hdl, errno, desc);
(void) zpool_standard_error(hdl, error, desc);
zpool_explain_recover(hdl,
newname ? origname : thename, -errno, nvi);
nvlist_free(nvi);
newname ? origname : thename, -error, nv);
break;
}
nvlist_free(nv);
ret = -1;
} else {
zpool_handle_t *zhp;
@@ -1495,15 +1568,12 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
ret = -1;
else if (zhp != NULL)
zpool_close(zhp);
(void) zcmd_read_dst_nvlist(hdl, &zc, &nvi);
zpool_get_rewind_policy(config, &policy);
if (policy.zrp_request &
(ZPOOL_DO_REWIND | ZPOOL_TRY_REWIND)) {
zpool_rewind_exclaim(hdl, newname ? origname : thename,
((policy.zrp_request & ZPOOL_TRY_REWIND) != 0),
nvi);
((policy.zrp_request & ZPOOL_TRY_REWIND) != 0), nv);
}
nvlist_free(nvi);
nvlist_free(nv);
return (0);
}
@@ -1526,7 +1596,7 @@ zpool_scan(zpool_handle_t *zhp, pool_scan_func_t func)
(void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name));
zc.zc_cookie = func;
if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_SCAN, &zc) == 0 ||
if (zfs_ioctl(hdl, ZFS_IOC_POOL_SCAN, &zc) == 0 ||
(errno == ENOENT && func != POOL_SCAN_NONE))
return (0);
@@ -1618,26 +1688,17 @@ vdev_to_nvlist_iter(nvlist_t *nv, nvlist_t *search, boolean_t *avail_spare,
srchkey = nvpair_name(pair);
switch (nvpair_type(pair)) {
case DATA_TYPE_UINT64: {
uint64_t srchval, theguid, present;
verify(nvpair_value_uint64(pair, &srchval) == 0);
case DATA_TYPE_UINT64:
if (strcmp(srchkey, ZPOOL_CONFIG_GUID) == 0) {
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT,
&present) == 0) {
/*
* If the device has never been present since
* import, the only reliable way to match the
* vdev is by GUID.
*/
verify(nvlist_lookup_uint64(nv,
ZPOOL_CONFIG_GUID, &theguid) == 0);
if (theguid == srchval)
return (nv);
}
uint64_t srchval, theguid;
verify(nvpair_value_uint64(pair, &srchval) == 0);
verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID,
&theguid) == 0);
if (theguid == srchval)
return (nv);
}
break;
}
case DATA_TYPE_STRING: {
char *srchval, *val;
@@ -1819,6 +1880,9 @@ zpool_find_vdev_by_physpath(zpool_handle_t *zhp, const char *ppath,
&nvroot) == 0);
*avail_spare = B_FALSE;
*l2cache = B_FALSE;
if (log != NULL)
*log = B_FALSE;
ret = vdev_to_nvlist_iter(nvroot, search, avail_spare, l2cache, log);
nvlist_free(search);
@@ -2114,14 +2178,14 @@ zpool_vdev_online(zpool_handle_t *zhp, const char *path, int flags,
if (wholedisk) {
pathname += strlen(DISK_ROOT) + 1;
(void) zpool_relabel_disk(zhp->zpool_hdl, pathname);
(void) zpool_relabel_disk(hdl, pathname);
}
}
zc.zc_cookie = VDEV_STATE_ONLINE;
zc.zc_obj = flags;
if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_VDEV_SET_STATE, &zc) != 0) {
if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) != 0) {
if (errno == EINVAL) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "was split "
"from this pool into a new one. Use '%s' "
@@ -2163,7 +2227,7 @@ zpool_vdev_offline(zpool_handle_t *zhp, const char *path, boolean_t istmp)
zc.zc_cookie = VDEV_STATE_OFFLINE;
zc.zc_obj = istmp ? ZFS_OFFLINE_TEMPORARY : 0;
if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
return (0);
switch (errno) {
@@ -2203,7 +2267,7 @@ zpool_vdev_fault(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux)
zc.zc_cookie = VDEV_STATE_FAULTED;
zc.zc_obj = aux;
if (ioctl(zhp->zpool_hdl->libzfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
if (ioctl(hdl->libzfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
return (0);
switch (errno) {
@@ -2238,7 +2302,7 @@ zpool_vdev_degrade(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux)
zc.zc_cookie = VDEV_STATE_DEGRADED;
zc.zc_obj = aux;
if (ioctl(zhp->zpool_hdl->libzfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
if (ioctl(hdl->libzfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
return (0);
return (zpool_standard_error(hdl, errno, msg));
@@ -2286,7 +2350,7 @@ zpool_vdev_attach(zpool_handle_t *zhp,
nvlist_t *tgt;
boolean_t avail_spare, l2cache, islog;
uint64_t val;
char *path, *newname;
char *newname;
nvlist_t **child;
uint_t children;
nvlist_t *config_root;
@@ -2352,41 +2416,17 @@ zpool_vdev_attach(zpool_handle_t *zhp,
return (zfs_error(hdl, EZFS_BADTARGET, msg));
}
/*
* If we are attempting to replace a spare, it canot be applied to an
* already spared device.
*/
if (replacing &&
nvlist_lookup_string(child[0], ZPOOL_CONFIG_PATH, &path) == 0 &&
zpool_find_vdev(zhp, newname, &avail_spare,
&l2cache, NULL) != NULL && avail_spare &&
is_replacing_spare(config_root, tgt, 0)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"device has already been replaced with a spare"));
free(newname);
return (zfs_error(hdl, EZFS_BADTARGET, msg));
}
free(newname);
if (zcmd_write_conf_nvlist(hdl, &zc, nvroot) != 0)
return (-1);
ret = zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_VDEV_ATTACH, &zc);
ret = zfs_ioctl(hdl, ZFS_IOC_VDEV_ATTACH, &zc);
zcmd_free_nvlists(&zc);
if (ret == 0) {
if (rootpool) {
/*
* XXX - This should be removed once we can
* automatically install the bootblocks on the
* newly attached disk.
*/
(void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Please "
"be sure to invoke %s to make '%s' bootable.\n"),
BOOTCMD, new_disk);
/*
* XXX need a better way to prevent user from
* booting up a half-baked vdev.
@@ -2404,9 +2444,16 @@ zpool_vdev_attach(zpool_handle_t *zhp,
* Can't attach to or replace this type of vdev.
*/
if (replacing) {
uint64_t version = zpool_get_prop_int(zhp,
ZPOOL_PROP_VERSION, NULL);
if (islog)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"cannot replace a log with a spare"));
else if (version >= SPA_VERSION_MULTI_REPLACE)
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"already in replacing/spare config; wait "
"for completion or use 'zpool detach'"));
else
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"cannot replace a replacing device"));
@@ -2504,7 +2551,7 @@ zpool_vdev_detach(zpool_handle_t *zhp, const char *path)
*/
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "only "
"applicable to mirror and replacing vdevs"));
(void) zfs_error(zhp->zpool_hdl, EZFS_BADTARGET, msg);
(void) zfs_error(hdl, EZFS_BADTARGET, msg);
break;
case EBUSY:
@@ -2596,8 +2643,9 @@ zpool_vdev_split(zpool_handle_t *zhp, char *newname, nvlist_t **newroot,
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &vers) == 0);
if (props) {
prop_flags_t flags = { .create = B_FALSE, .import = B_TRUE };
if ((zc_props = zpool_valid_proplist(hdl, zhp->zpool_name,
props, vers, B_TRUE, msg)) == NULL)
props, vers, flags, msg)) == NULL)
return (-1);
}
@@ -2831,6 +2879,7 @@ zpool_clear(zpool_handle_t *zhp, const char *path, nvlist_t *rewindnvl)
boolean_t avail_spare, l2cache;
libzfs_handle_t *hdl = zhp->zpool_hdl;
nvlist_t *nvi = NULL;
int error;
if (path)
(void) snprintf(msg, sizeof (msg),
@@ -2861,14 +2910,21 @@ zpool_clear(zpool_handle_t *zhp, const char *path, nvlist_t *rewindnvl)
zpool_get_rewind_policy(rewindnvl, &policy);
zc.zc_cookie = policy.zrp_request;
if (zcmd_alloc_dst_nvlist(hdl, &zc, 8192) != 0)
if (zcmd_alloc_dst_nvlist(hdl, &zc, zhp->zpool_config_size * 2) != 0)
return (-1);
if (zcmd_write_src_nvlist(zhp->zpool_hdl, &zc, rewindnvl) != 0)
if (zcmd_write_src_nvlist(hdl, &zc, rewindnvl) != 0)
return (-1);
if (zfs_ioctl(hdl, ZFS_IOC_CLEAR, &zc) == 0 ||
((policy.zrp_request & ZPOOL_TRY_REWIND) &&
while ((error = zfs_ioctl(hdl, ZFS_IOC_CLEAR, &zc)) != 0 &&
errno == ENOMEM) {
if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) {
zcmd_free_nvlists(&zc);
return (-1);
}
}
if (!error || ((policy.zrp_request & ZPOOL_TRY_REWIND) &&
errno != EPERM && errno != EACCES)) {
if (policy.zrp_request &
(ZPOOL_DO_REWIND | ZPOOL_TRY_REWIND)) {
lib/libzfs/libzfs_sendrecv.c
+138 -76
View File
@@ -51,7 +51,7 @@
extern void zfs_setprop_error(libzfs_handle_t *, zfs_prop_t, int, char *);
static int zfs_receive_impl(libzfs_handle_t *, const char *, recvflags_t,
int, const char *, nvlist_t *, avl_tree_t *, char **);
int, const char *, nvlist_t *, avl_tree_t *, char **, int, uint64_t *);
static const zio_cksum_t zero_cksum = { 0 };
@@ -782,14 +782,30 @@ static int
zfs_sort_snaps(zfs_handle_t *zhp, void *data)
{
avl_tree_t *avl = data;
zfs_node_t *node = zfs_alloc(zhp->zfs_hdl, sizeof (zfs_node_t));
zfs_node_t *node;
zfs_node_t search;
search.zn_handle = zhp;
node = avl_find(avl, &search, NULL);
if (node) {
/*
* If this snapshot was renamed while we were creating the
* AVL tree, it's possible that we already inserted it under
* its old name. Remove the old handle before adding the new
* one.
*/
zfs_close(node->zn_handle);
avl_remove(avl, node);
free(node);
}
node = zfs_alloc(zhp->zfs_hdl, sizeof (zfs_node_t));
node->zn_handle = zhp;
avl_add(avl, node);
return (0);
}
/* ARGSUSED */
static int
zfs_snapshot_compare(const void *larg, const void *rarg)
{
@@ -844,6 +860,7 @@ typedef struct send_dump_data {
const char *fromsnap;
const char *tosnap;
char prevsnap[ZFS_MAXNAMELEN];
uint64_t prevsnap_obj;
boolean_t seenfrom, seento, replicate, doall, fromorigin;
boolean_t verbose;
int outfd;
@@ -853,6 +870,8 @@ typedef struct send_dump_data {
snapfilter_cb_t *filter_cb;
void *filter_cb_arg;
nvlist_t *debugnv;
char holdtag[ZFS_MAXNAMELEN];
int cleanup_fd;
} send_dump_data_t;
/*
@@ -860,23 +879,21 @@ typedef struct send_dump_data {
* NULL) to the file descriptor specified by outfd.
*/
static int
dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, boolean_t fromorigin,
int outfd, boolean_t enoent_ok, boolean_t *got_enoent, nvlist_t *debugnv)
dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, uint64_t fromsnap_obj,
boolean_t fromorigin, int outfd, nvlist_t *debugnv)
{
zfs_cmd_t zc = { 0 };
libzfs_handle_t *hdl = zhp->zfs_hdl;
nvlist_t *thisdbg;
assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT);
assert(fromsnap == NULL || fromsnap[0] == '\0' || !fromorigin);
assert(fromsnap_obj == 0 || !fromorigin);
(void) strlcpy(zc.zc_name, zhp->zfs_name, sizeof (zc.zc_name));
if (fromsnap)
(void) strlcpy(zc.zc_value, fromsnap, sizeof (zc.zc_value));
zc.zc_cookie = outfd;
zc.zc_obj = fromorigin;
*got_enoent = B_FALSE;
zc.zc_sendobj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID);
zc.zc_fromobj = fromsnap_obj;
VERIFY(0 == nvlist_alloc(&thisdbg, NV_UNIQUE_NAME, 0));
if (fromsnap && fromsnap[0] != '\0') {
@@ -904,10 +921,6 @@ dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, boolean_t fromorigin,
return (zfs_error(hdl, EZFS_CROSSTARGET, errbuf));
case ENOENT:
if (enoent_ok) {
*got_enoent = B_TRUE;
return (0);
}
if (zfs_dataset_exists(hdl, zc.zc_name,
ZFS_TYPE_SNAPSHOT)) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
@@ -942,13 +955,48 @@ dump_ioctl(zfs_handle_t *zhp, const char *fromsnap, boolean_t fromorigin,
return (0);
}
static int
hold_for_send(zfs_handle_t *zhp, send_dump_data_t *sdd)
{
zfs_handle_t *pzhp;
int error = 0;
char *thissnap;
assert(zhp->zfs_type == ZFS_TYPE_SNAPSHOT);
/*
* zfs_send() only opens a cleanup_fd for sends that need it,
* e.g. replication and doall.
*/
if (sdd->cleanup_fd == -1)
return (0);
thissnap = strchr(zhp->zfs_name, '@') + 1;
*(thissnap - 1) = '\0';
pzhp = zfs_open(zhp->zfs_hdl, zhp->zfs_name, ZFS_TYPE_DATASET);
*(thissnap - 1) = '@';
/*
* It's OK if the parent no longer exists. The send code will
* handle that error.
*/
if (pzhp) {
error = zfs_hold(pzhp, thissnap, sdd->holdtag,
B_FALSE, B_TRUE, B_TRUE, sdd->cleanup_fd,
zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID),
zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG));
zfs_close(pzhp);
}
return (error);
}
static int
dump_snapshot(zfs_handle_t *zhp, void *arg)
{
send_dump_data_t *sdd = arg;
const char *thissnap;
char *thissnap;
int err;
boolean_t got_enoent;
boolean_t isfromsnap, istosnap;
boolean_t exclude = B_FALSE;
@@ -957,10 +1005,17 @@ dump_snapshot(zfs_handle_t *zhp, void *arg)
strcmp(sdd->fromsnap, thissnap) == 0);
if (!sdd->seenfrom && isfromsnap) {
sdd->seenfrom = B_TRUE;
(void) strcpy(sdd->prevsnap, thissnap);
err = hold_for_send(zhp, sdd);
if (err == 0) {
sdd->seenfrom = B_TRUE;
(void) strcpy(sdd->prevsnap, thissnap);
sdd->prevsnap_obj = zfs_prop_get_int(zhp,
ZFS_PROP_OBJSETID);
} else if (err == ENOENT) {
err = 0;
}
zfs_close(zhp);
return (0);
return (err);
}
if (sdd->seento || !sdd->seenfrom) {
@@ -1001,7 +1056,7 @@ dump_snapshot(zfs_handle_t *zhp, void *arg)
sdd->filter_cb(zhp, sdd->filter_cb_arg) == B_FALSE)) {
/*
* This snapshot is filtered out. Don't send it, and don't
* set prevsnap, so it will be as if this snapshot didn't
* set prevsnap_obj, so it will be as if this snapshot didn't
* exist, and the next accepted snapshot will be sent as
* an incremental from the last accepted one, or as the
* first (and full) snapshot in the case of a replication,
@@ -1011,20 +1066,26 @@ dump_snapshot(zfs_handle_t *zhp, void *arg)
return (0);
}
err = hold_for_send(zhp, sdd);
if (err) {
if (err == ENOENT)
err = 0;
zfs_close(zhp);
return (err);
}
/* send it */
if (sdd->verbose) {
(void) fprintf(stderr, "sending from @%s to %s\n",
sdd->prevsnap, zhp->zfs_name);
}
err = dump_ioctl(zhp, sdd->prevsnap,
err = dump_ioctl(zhp, sdd->prevsnap, sdd->prevsnap_obj,
sdd->prevsnap[0] == '\0' && (sdd->fromorigin || sdd->replicate),
sdd->outfd, B_TRUE, &got_enoent, sdd->debugnv);
sdd->outfd, sdd->debugnv);
if (got_enoent)
err = 0;
else
(void) strcpy(sdd->prevsnap, thissnap);
(void) strcpy(sdd->prevsnap, thissnap);
sdd->prevsnap_obj = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID);
zfs_close(zhp);
return (err);
}
@@ -1064,6 +1125,7 @@ dump_filesystem(zfs_handle_t *zhp, void *arg)
}
sdd->seenfrom = sdd->seento = sdd->prevsnap[0] = 0;
sdd->prevsnap_obj = 0;
if (sdd->fromsnap == NULL || missingfrom)
sdd->seenfrom = B_TRUE;
@@ -1202,7 +1264,6 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
int err;
nvlist_t *fss = NULL;
avl_tree_t *fsavl = NULL;
char holdtag[128];
static uint64_t holdseq;
int spa_version;
boolean_t holdsnaps = B_FALSE;
@@ -1211,14 +1272,6 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
dedup_arg_t dda = { 0 };
int featureflags = 0;
if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM) {
uint64_t version;
version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
if (version >= ZPL_VERSION_SA) {
featureflags |= DMU_BACKUP_FEATURE_SA_SPILL;
}
}
(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
"cannot send '%s'"), zhp->zfs_name);
@@ -1228,8 +1281,17 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
return (zfs_error(zhp->zfs_hdl, EZFS_NOENT, errbuf));
}
if (zhp->zfs_type == ZFS_TYPE_FILESYSTEM) {
uint64_t version;
version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
if (version >= ZPL_VERSION_SA) {
featureflags |= DMU_BACKUP_FEATURE_SA_SPILL;
}
}
if (zfs_spa_version(zhp, &spa_version) == 0 &&
spa_version >= SPA_VERSION_USERREFS)
spa_version >= SPA_VERSION_USERREFS &&
(flags.doall || flags.replicate))
holdsnaps = B_TRUE;
if (flags.dedup) {
@@ -1258,17 +1320,6 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
size_t buflen = 0;
zio_cksum_t zc = { 0 };
if (holdsnaps) {
(void) snprintf(holdtag, sizeof (holdtag),
".send-%d-%llu", getpid(), (u_longlong_t)holdseq);
++holdseq;
err = zfs_hold_range(zhp, fromsnap, tosnap,
holdtag, flags.replicate, B_TRUE, filter_func,
cb_arg);
if (err)
goto err_out;
}
if (flags.replicate || flags.props) {
nvlist_t *hdrnv;
@@ -1285,13 +1336,8 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
err = gather_nvlist(zhp->zfs_hdl, zhp->zfs_name,
fromsnap, tosnap, flags.replicate, &fss, &fsavl);
if (err) {
if (holdsnaps) {
(void) zfs_release_range(zhp, fromsnap,
tosnap, holdtag, flags.replicate);
}
if (err)
goto err_out;
}
VERIFY(0 == nvlist_add_nvlist(hdrnv, "fss", fss));
err = nvlist_pack(hdrnv, &packbuf, &buflen,
NV_ENCODE_XDR, 0);
@@ -1302,10 +1348,6 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
if (err) {
fsavl_destroy(fsavl);
nvlist_free(fss);
if (holdsnaps) {
(void) zfs_release_range(zhp, fromsnap,
tosnap, holdtag, flags.replicate);
}
goto stderr_out;
}
}
@@ -1331,10 +1373,6 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
if (err == -1) {
fsavl_destroy(fsavl);
nvlist_free(fss);
if (holdsnaps) {
(void) zfs_release_range(zhp, fromsnap, tosnap,
holdtag, flags.replicate);
}
err = errno;
goto stderr_out;
}
@@ -1349,10 +1387,6 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
fsavl_destroy(fsavl);
nvlist_free(fss);
err = errno;
if (holdsnaps) {
(void) zfs_release_range(zhp, fromsnap,
tosnap, holdtag, flags.replicate);
}
goto stderr_out;
}
}
@@ -1375,6 +1409,18 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
sdd.filter_cb_arg = cb_arg;
if (debugnvp)
sdd.debugnv = *debugnvp;
if (holdsnaps) {
++holdseq;
(void) snprintf(sdd.holdtag, sizeof (sdd.holdtag),
".send-%d-%llu", getpid(), (u_longlong_t)holdseq);
sdd.cleanup_fd = open(ZFS_DEV, O_RDWR|O_EXCL);
if (sdd.cleanup_fd < 0) {
err = errno;
goto stderr_out;
}
} else {
sdd.cleanup_fd = -1;
}
err = dump_filesystems(zhp, &sdd);
fsavl_destroy(fsavl);
nvlist_free(fss);
@@ -1384,6 +1430,11 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
(void) pthread_join(tid, NULL);
}
if (sdd.cleanup_fd != -1) {
VERIFY(0 == close(sdd.cleanup_fd));
sdd.cleanup_fd = -1;
}
if (flags.replicate || flags.doall || flags.props) {
/*
* write final end record. NB: want to do this even if
@@ -1392,10 +1443,6 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
*/
dmu_replay_record_t drr = { 0 };
drr.drr_type = DRR_END;
if (holdsnaps) {
(void) zfs_release_range(zhp, fromsnap, tosnap,
holdtag, flags.replicate);
}
if (write(outfd, &drr, sizeof (drr)) == -1) {
return (zfs_standard_error(zhp->zfs_hdl,
errno, errbuf));
@@ -1407,6 +1454,8 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap,
stderr_out:
err = zfs_standard_error(zhp->zfs_hdl, err, errbuf);
err_out:
if (sdd.cleanup_fd != -1)
VERIFY(0 == close(sdd.cleanup_fd));
if (flags.dedup) {
(void) pthread_cancel(tid);
(void) pthread_join(tid, NULL);
@@ -1992,7 +2041,7 @@ again:
static int
zfs_receive_package(libzfs_handle_t *hdl, int fd, const char *destname,
recvflags_t flags, dmu_replay_record_t *drr, zio_cksum_t *zc,
char **top_zfs)
char **top_zfs, int cleanup_fd, uint64_t *action_handlep)
{
nvlist_t *stream_nv = NULL;
avl_tree_t *stream_avl = NULL;
@@ -2158,7 +2207,8 @@ zfs_receive_package(libzfs_handle_t *hdl, int fd, const char *destname,
* recv_skip() and return 0).
*/
error = zfs_receive_impl(hdl, destname, flags, fd,
sendfs, stream_nv, stream_avl, top_zfs);
sendfs, stream_nv, stream_avl, top_zfs, cleanup_fd,
action_handlep);
if (error == ENODATA) {
error = 0;
break;
@@ -2281,7 +2331,8 @@ static int
zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
recvflags_t flags, dmu_replay_record_t *drr,
dmu_replay_record_t *drr_noswap, const char *sendfs,
nvlist_t *stream_nv, avl_tree_t *stream_avl, char **top_zfs)
nvlist_t *stream_nv, avl_tree_t *stream_avl, char **top_zfs, int cleanup_fd,
uint64_t *action_handlep)
{
zfs_cmd_t zc = { 0 };
time_t begin_time;
@@ -2609,6 +2660,8 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
zc.zc_nvlist_dst = (uint64_t)(uintptr_t)prop_errbuf;
zc.zc_nvlist_dst_size = sizeof (prop_errbuf);
zc.zc_cleanup_fd = cleanup_fd;
zc.zc_action_handle = *action_handlep;
err = ioctl_err = zfs_ioctl(hdl, ZFS_IOC_RECV, &zc);
ioctl_errno = errno;
@@ -2796,6 +2849,8 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
if (err || ioctl_err)
return (-1);
*action_handlep = zc.zc_action_handle;
if (flags.verbose) {
char buf1[64];
char buf2[64];
@@ -2816,7 +2871,7 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
static int
zfs_receive_impl(libzfs_handle_t *hdl, const char *tosnap, recvflags_t flags,
int infd, const char *sendfs, nvlist_t *stream_nv, avl_tree_t *stream_avl,
char **top_zfs)
char **top_zfs, int cleanup_fd, uint64_t *action_handlep)
{
int err;
dmu_replay_record_t drr, drr_noswap;
@@ -2909,12 +2964,12 @@ zfs_receive_impl(libzfs_handle_t *hdl, const char *tosnap, recvflags_t flags,
}
return (zfs_receive_one(hdl, infd, tosnap, flags,
&drr, &drr_noswap, sendfs, stream_nv, stream_avl,
top_zfs));
top_zfs, cleanup_fd, action_handlep));
} else {
assert(DMU_GET_STREAM_HDRTYPE(drrb->drr_versioninfo) ==
DMU_COMPOUNDSTREAM);
return (zfs_receive_package(hdl, infd, tosnap, flags,
&drr, &zcksum, top_zfs));
&drr, &zcksum, top_zfs, cleanup_fd, action_handlep));
}
}
@@ -2930,9 +2985,16 @@ zfs_receive(libzfs_handle_t *hdl, const char *tosnap, recvflags_t flags,
{
char *top_zfs = NULL;
int err;
int cleanup_fd;
uint64_t action_handle = 0;
cleanup_fd = open(ZFS_DEV, O_RDWR|O_EXCL);
VERIFY(cleanup_fd >= 0);
err = zfs_receive_impl(hdl, tosnap, flags, infd, NULL, NULL,
stream_avl, &top_zfs);
stream_avl, &top_zfs, cleanup_fd, &action_handle);
VERIFY(0 == close(cleanup_fd));
if (err == 0 && !flags.nomount && top_zfs) {
zfs_handle_t *zhp;
lib/libzfs/libzfs_util.c
+39 -10
View File
@@ -69,7 +69,7 @@ libzfs_error_description(libzfs_handle_t *hdl)
case EZFS_BADPROP:
return (dgettext(TEXT_DOMAIN, "invalid property value"));
case EZFS_PROPREADONLY:
return (dgettext(TEXT_DOMAIN, "read only property"));
return (dgettext(TEXT_DOMAIN, "read-only property"));
case EZFS_PROPTYPE:
return (dgettext(TEXT_DOMAIN, "property doesn't apply to "
"datasets of this type"));
@@ -89,7 +89,7 @@ libzfs_error_description(libzfs_handle_t *hdl)
case EZFS_BADSTREAM:
return (dgettext(TEXT_DOMAIN, "invalid backup stream"));
case EZFS_DSREADONLY:
return (dgettext(TEXT_DOMAIN, "dataset is read only"));
return (dgettext(TEXT_DOMAIN, "dataset is read-only"));
case EZFS_VOLTOOBIG:
return (dgettext(TEXT_DOMAIN, "volume size exceeds limit for "
"this system"));
@@ -181,9 +181,6 @@ libzfs_error_description(libzfs_handle_t *hdl)
case EZFS_NODELEGATION:
return (dgettext(TEXT_DOMAIN, "delegated administration is "
"disabled on pool"));
case EZFS_PERMRDONLY:
return (dgettext(TEXT_DOMAIN, "snapshot permissions cannot be"
" modified"));
case EZFS_BADCACHE:
return (dgettext(TEXT_DOMAIN, "invalid or missing cache file"));
case EZFS_ISL2CACHE:
@@ -219,6 +216,12 @@ libzfs_error_description(libzfs_handle_t *hdl)
"use 'zpool scrub -s' to cancel current scrub"));
case EZFS_NO_SCRUB:
return (dgettext(TEXT_DOMAIN, "there is no active scrub"));
case EZFS_DIFF:
return (dgettext(TEXT_DOMAIN, "unable to generate diffs"));
case EZFS_DIFFDATA:
return (dgettext(TEXT_DOMAIN, "invalid diff data"));
case EZFS_POOLREADONLY:
return (dgettext(TEXT_DOMAIN, "pool is read-only"));
case EZFS_UNKNOWN:
return (dgettext(TEXT_DOMAIN, "unknown error"));
default:
@@ -367,9 +370,7 @@ zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
zfs_verror(hdl, EZFS_BUSY, fmt, ap);
break;
case EROFS:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"snapshot permissions cannot be modified"));
zfs_verror(hdl, EZFS_PERMRDONLY, fmt, ap);
zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap);
break;
case ENAMETOOLONG:
zfs_verror(hdl, EZFS_NAMETOOLONG, fmt, ap);
@@ -455,12 +456,17 @@ zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
case EDQUOT:
zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
return (-1);
case EAGAIN:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"pool I/O is currently suspended"));
zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
break;
case EROFS:
zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap);
break;
default:
zfs_error_aux(hdl, strerror(error));
zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
@@ -493,6 +499,29 @@ zfs_alloc(libzfs_handle_t *hdl, size_t size)
return (data);
}
/*
* A safe form of asprintf() which will die if the allocation fails.
*/
/*PRINTFLIKE2*/
char *
zfs_asprintf(libzfs_handle_t *hdl, const char *fmt, ...)
{
va_list ap;
char *ret;
int err;
va_start(ap, fmt);
err = vasprintf(&ret, fmt, ap);
va_end(ap);
if (err < 0)
(void) no_memory(hdl);
return (ret);
}
/*
* A safe form of realloc(), which also zeroes newly allocated space.
*/
@@ -579,7 +608,7 @@ libzfs_init(void)
{
libzfs_handle_t *hdl;
if ((hdl = calloc(sizeof (libzfs_handle_t), 1)) == NULL) {
if ((hdl = calloc(1, sizeof (libzfs_handle_t))) == NULL) {
return (NULL);
}
@@ -692,7 +721,7 @@ int
zcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len)
{
if (len == 0)
len = 4*1024;
len = 16 * 1024;
zc->zc_nvlist_dst_size = len;
if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
zfs_alloc(hdl, zc->zc_nvlist_dst_size)) == NULL)