author | eschrock |
Mon, 30 Jan 2006 21:34:28 -0800 | |
changeset 1354 | 81359ee1ee63 |
parent 1133 | 335d069294d1 |
child 1356 | e021b5e4aa0e |
permissions | -rw-r--r-- |
789 | 1 |
/* |
2 |
* CDDL HEADER START |
|
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* |
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* The contents of this file are subject to the terms of the |
|
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* Common Development and Distribution License, Version 1.0 only |
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* (the "License"). You may not use this file except in compliance |
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* with the License. |
|
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* |
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
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* or http://www.opensolaris.org/os/licensing. |
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* See the License for the specific language governing permissions |
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* and limitations under the License. |
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* |
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* When distributing Covered Code, include this CDDL HEADER in each |
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
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* If applicable, add the following below this CDDL HEADER, with the |
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* fields enclosed by brackets "[]" replaced with your own identifying |
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* information: Portions Copyright [yyyy] [name of copyright owner] |
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* |
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* CDDL HEADER END |
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*/ |
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/* |
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1354
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
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* Copyright 2006 Sun Microsystems, Inc. All rights reserved. |
789 | 24 |
* Use is subject to license terms. |
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*/ |
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||
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#pragma ident "%Z%%M% %I% %E% SMI" |
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||
29 |
#include <sys/types.h> |
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30 |
#include <sys/param.h> |
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31 |
#include <sys/errno.h> |
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32 |
#include <sys/uio.h> |
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#include <sys/buf.h> |
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34 |
#include <sys/modctl.h> |
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35 |
#include <sys/open.h> |
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36 |
#include <sys/file.h> |
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37 |
#include <sys/kmem.h> |
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38 |
#include <sys/conf.h> |
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39 |
#include <sys/cmn_err.h> |
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40 |
#include <sys/stat.h> |
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41 |
#include <sys/zfs_ioctl.h> |
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42 |
#include <sys/zap.h> |
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43 |
#include <sys/spa.h> |
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44 |
#include <sys/vdev.h> |
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45 |
#include <sys/dmu.h> |
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46 |
#include <sys/dsl_dir.h> |
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47 |
#include <sys/dsl_dataset.h> |
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48 |
#include <sys/dsl_prop.h> |
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49 |
#include <sys/ddi.h> |
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50 |
#include <sys/sunddi.h> |
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51 |
#include <sys/sunldi.h> |
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52 |
#include <sys/policy.h> |
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53 |
#include <sys/zone.h> |
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54 |
#include <sys/nvpair.h> |
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55 |
#include <sys/pathname.h> |
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56 |
#include <sys/mount.h> |
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57 |
#include <sys/sdt.h> |
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58 |
#include <sys/fs/zfs.h> |
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59 |
#include <sys/zfs_ctldir.h> |
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60 |
||
61 |
#include "zfs_namecheck.h" |
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62 |
||
63 |
extern struct modlfs zfs_modlfs; |
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64 |
||
65 |
extern void zfs_init(void); |
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66 |
extern void zfs_fini(void); |
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67 |
||
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ldi_ident_t zfs_li = NULL; |
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69 |
dev_info_t *zfs_dip; |
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70 |
||
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typedef int zfs_ioc_func_t(zfs_cmd_t *); |
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72 |
typedef int zfs_secpolicy_func_t(const char *, const char *, cred_t *); |
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73 |
||
74 |
typedef struct zfs_ioc_vec { |
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75 |
zfs_ioc_func_t *zvec_func; |
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76 |
zfs_secpolicy_func_t *zvec_secpolicy; |
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77 |
enum { |
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78 |
no_name, |
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79 |
pool_name, |
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80 |
dataset_name |
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81 |
} zvec_namecheck; |
|
82 |
} zfs_ioc_vec_t; |
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83 |
||
84 |
/* _NOTE(PRINTFLIKE(4)) - this is printf-like, but lint is too whiney */ |
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85 |
void |
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86 |
__dprintf(const char *file, const char *func, int line, const char *fmt, ...) |
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87 |
{ |
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88 |
const char *newfile; |
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89 |
char buf[256]; |
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90 |
va_list adx; |
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91 |
||
92 |
/* |
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93 |
* Get rid of annoying "../common/" prefix to filename. |
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94 |
*/ |
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95 |
newfile = strrchr(file, '/'); |
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96 |
if (newfile != NULL) { |
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97 |
newfile = newfile + 1; /* Get rid of leading / */ |
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98 |
} else { |
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99 |
newfile = file; |
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100 |
} |
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101 |
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102 |
va_start(adx, fmt); |
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103 |
(void) vsnprintf(buf, sizeof (buf), fmt, adx); |
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104 |
va_end(adx); |
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105 |
||
106 |
/* |
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107 |
* To get this data, use the zfs-dprintf probe as so: |
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108 |
* dtrace -q -n 'zfs-dprintf \ |
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109 |
* /stringof(arg0) == "dbuf.c"/ \ |
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110 |
* {printf("%s: %s", stringof(arg1), stringof(arg3))}' |
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* arg0 = file name |
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* arg1 = function name |
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* arg2 = line number |
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114 |
* arg3 = message |
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115 |
*/ |
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116 |
DTRACE_PROBE4(zfs__dprintf, |
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117 |
char *, newfile, char *, func, int, line, char *, buf); |
|
118 |
} |
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119 |
||
120 |
/* |
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121 |
* Policy for top-level read operations (list pools). Requires no privileges, |
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122 |
* and can be used in the local zone, as there is no associated dataset. |
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123 |
*/ |
|
124 |
/* ARGSUSED */ |
|
125 |
static int |
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126 |
zfs_secpolicy_none(const char *unused1, const char *unused2, cred_t *cr) |
|
127 |
{ |
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128 |
return (0); |
|
129 |
} |
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130 |
||
131 |
/* |
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132 |
* Policy for dataset read operations (list children, get statistics). Requires |
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133 |
* no privileges, but must be visible in the local zone. |
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134 |
*/ |
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135 |
/* ARGSUSED */ |
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136 |
static int |
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137 |
zfs_secpolicy_read(const char *dataset, const char *unused, cred_t *cr) |
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138 |
{ |
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139 |
if (INGLOBALZONE(curproc) || |
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140 |
zone_dataset_visible(dataset, NULL)) |
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141 |
return (0); |
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142 |
||
143 |
return (ENOENT); |
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144 |
} |
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145 |
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146 |
static int |
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147 |
zfs_dozonecheck(const char *dataset, cred_t *cr) |
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148 |
{ |
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149 |
uint64_t zoned; |
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150 |
int writable = 1; |
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151 |
||
152 |
/* |
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153 |
* The dataset must be visible by this zone -- check this first |
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154 |
* so they don't see EPERM on something they shouldn't know about. |
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155 |
*/ |
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156 |
if (!INGLOBALZONE(curproc) && |
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157 |
!zone_dataset_visible(dataset, &writable)) |
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158 |
return (ENOENT); |
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159 |
||
160 |
if (dsl_prop_get_integer(dataset, "zoned", &zoned, NULL)) |
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return (ENOENT); |
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162 |
||
163 |
if (INGLOBALZONE(curproc)) { |
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164 |
/* |
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165 |
* If the fs is zoned, only root can access it from the |
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* global zone. |
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*/ |
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168 |
if (secpolicy_zfs(cr) && zoned) |
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return (EPERM); |
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170 |
} else { |
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171 |
/* |
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* If we are in a local zone, the 'zoned' property must be set. |
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*/ |
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174 |
if (!zoned) |
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return (EPERM); |
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176 |
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177 |
/* must be writable by this zone */ |
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178 |
if (!writable) |
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return (EPERM); |
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180 |
} |
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181 |
return (0); |
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182 |
} |
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183 |
||
184 |
/* |
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185 |
* Policy for dataset write operations (create children, set properties, etc). |
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186 |
* Requires SYS_MOUNT privilege, and must be writable in the local zone. |
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187 |
*/ |
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188 |
/* ARGSUSED */ |
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189 |
int |
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190 |
zfs_secpolicy_write(const char *dataset, const char *unused, cred_t *cr) |
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191 |
{ |
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192 |
int error; |
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193 |
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194 |
if (error = zfs_dozonecheck(dataset, cr)) |
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195 |
return (error); |
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196 |
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197 |
return (secpolicy_zfs(cr)); |
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198 |
} |
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199 |
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200 |
/* |
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201 |
* Policy for operations that want to write a dataset's parent: |
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* create, destroy, snapshot, clone, restore. |
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*/ |
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204 |
static int |
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205 |
zfs_secpolicy_parent(const char *dataset, const char *unused, cred_t *cr) |
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206 |
{ |
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207 |
char parentname[MAXNAMELEN]; |
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208 |
char *cp; |
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209 |
||
210 |
/* |
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211 |
* Remove the @bla or /bla from the end of the name to get the parent. |
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212 |
*/ |
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213 |
(void) strncpy(parentname, dataset, sizeof (parentname)); |
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cp = strrchr(parentname, '@'); |
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215 |
if (cp != NULL) { |
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216 |
cp[0] = '\0'; |
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217 |
} else { |
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218 |
cp = strrchr(parentname, '/'); |
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219 |
if (cp == NULL) |
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return (ENOENT); |
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cp[0] = '\0'; |
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222 |
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223 |
} |
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224 |
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225 |
return (zfs_secpolicy_write(parentname, unused, cr)); |
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} |
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227 |
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228 |
/* |
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229 |
* Policy for dataset write operations (create children, set properties, etc). |
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* Requires SYS_MOUNT privilege, and must be writable in the local zone. |
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231 |
*/ |
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232 |
static int |
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233 |
zfs_secpolicy_setprop(const char *dataset, const char *prop, cred_t *cr) |
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{ |
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235 |
int error; |
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236 |
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237 |
if (error = zfs_dozonecheck(dataset, cr)) |
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return (error); |
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239 |
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240 |
if (strcmp(prop, "zoned") == 0) { |
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241 |
/* |
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242 |
* Disallow setting of 'zoned' from within a local zone. |
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243 |
*/ |
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244 |
if (!INGLOBALZONE(curproc)) |
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return (EPERM); |
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246 |
} |
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247 |
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248 |
return (secpolicy_zfs(cr)); |
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249 |
} |
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250 |
||
251 |
/* |
|
252 |
* Security policy for setting the quota. This is the same as |
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253 |
* zfs_secpolicy_write, except that the local zone may not change the quota at |
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254 |
* the zone-property setpoint. |
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255 |
*/ |
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256 |
/* ARGSUSED */ |
|
257 |
static int |
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258 |
zfs_secpolicy_quota(const char *dataset, const char *unused, cred_t *cr) |
|
259 |
{ |
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260 |
int error; |
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261 |
||
262 |
if (error = zfs_dozonecheck(dataset, cr)) |
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263 |
return (error); |
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264 |
||
265 |
if (!INGLOBALZONE(curproc)) { |
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266 |
uint64_t zoned; |
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267 |
char setpoint[MAXNAMELEN]; |
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268 |
int dslen; |
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269 |
/* |
|
270 |
* Unprivileged users are allowed to modify the quota |
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271 |
* on things *under* (ie. contained by) the thing they |
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272 |
* own. |
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273 |
*/ |
|
274 |
if (dsl_prop_get_integer(dataset, "zoned", &zoned, setpoint)) |
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275 |
return (EPERM); |
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276 |
if (!zoned) /* this shouldn't happen */ |
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277 |
return (EPERM); |
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278 |
dslen = strlen(dataset); |
|
279 |
if (dslen <= strlen(setpoint)) |
|
280 |
return (EPERM); |
|
281 |
} |
|
282 |
||
283 |
return (secpolicy_zfs(cr)); |
|
284 |
} |
|
285 |
||
286 |
/* |
|
287 |
* Policy for pool operations - create/destroy pools, add vdevs, etc. Requires |
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288 |
* SYS_CONFIG privilege, which is not available in a local zone. |
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289 |
*/ |
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290 |
/* ARGSUSED */ |
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291 |
static int |
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292 |
zfs_secpolicy_config(const char *unused, const char *unused2, cred_t *cr) |
|
293 |
{ |
|
294 |
if (secpolicy_sys_config(cr, B_FALSE) != 0) |
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295 |
return (EPERM); |
|
296 |
||
297 |
return (0); |
|
298 |
} |
|
299 |
||
300 |
/* |
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301 |
* Returns the nvlist as specified by the user in the zfs_cmd_t. |
|
302 |
*/ |
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303 |
static int |
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304 |
get_config(zfs_cmd_t *zc, nvlist_t **nvp) |
|
305 |
{ |
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306 |
char *packed; |
|
307 |
size_t size; |
|
308 |
int error; |
|
309 |
nvlist_t *config = NULL; |
|
310 |
||
311 |
/* |
|
312 |
* Read in and unpack the user-supplied nvlist. By this point, we know |
|
313 |
* that the user has the SYS_CONFIG privilege, so allocating arbitrary |
|
314 |
* sized regions of memory should not be a problem. |
|
315 |
*/ |
|
316 |
if ((size = zc->zc_config_src_size) == 0) |
|
317 |
return (EINVAL); |
|
318 |
||
319 |
packed = kmem_alloc(size, KM_SLEEP); |
|
320 |
||
321 |
if ((error = xcopyin((void *)(uintptr_t)zc->zc_config_src, packed, |
|
322 |
size)) != 0) { |
|
323 |
kmem_free(packed, size); |
|
324 |
return (error); |
|
325 |
} |
|
326 |
||
327 |
if ((error = nvlist_unpack(packed, size, &config, 0)) != 0) { |
|
328 |
kmem_free(packed, size); |
|
329 |
return (error); |
|
330 |
} |
|
331 |
||
332 |
kmem_free(packed, size); |
|
333 |
||
334 |
*nvp = config; |
|
335 |
return (0); |
|
336 |
} |
|
337 |
||
338 |
static int |
|
339 |
zfs_ioc_pool_create(zfs_cmd_t *zc) |
|
340 |
{ |
|
341 |
int error; |
|
342 |
nvlist_t *config; |
|
343 |
||
344 |
if ((error = get_config(zc, &config)) != 0) |
|
345 |
return (error); |
|
346 |
||
347 |
error = spa_create(zc->zc_name, config, zc->zc_root[0] == '\0' ? |
|
348 |
NULL : zc->zc_root); |
|
349 |
||
350 |
nvlist_free(config); |
|
351 |
||
352 |
return (error); |
|
353 |
} |
|
354 |
||
355 |
static int |
|
356 |
zfs_ioc_pool_destroy(zfs_cmd_t *zc) |
|
357 |
{ |
|
358 |
return (spa_destroy(zc->zc_name)); |
|
359 |
} |
|
360 |
||
361 |
static int |
|
362 |
zfs_ioc_pool_import(zfs_cmd_t *zc) |
|
363 |
{ |
|
364 |
int error; |
|
365 |
nvlist_t *config; |
|
366 |
uint64_t guid; |
|
367 |
||
368 |
if ((error = get_config(zc, &config)) != 0) |
|
369 |
return (error); |
|
370 |
||
371 |
if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) != 0 || |
|
372 |
guid != zc->zc_pool_guid) |
|
373 |
error = EINVAL; |
|
374 |
else |
|
375 |
error = spa_import(zc->zc_name, config, |
|
376 |
zc->zc_root[0] == '\0' ? NULL : zc->zc_root); |
|
377 |
||
378 |
nvlist_free(config); |
|
379 |
||
380 |
return (error); |
|
381 |
} |
|
382 |
||
383 |
static int |
|
384 |
zfs_ioc_pool_export(zfs_cmd_t *zc) |
|
385 |
{ |
|
386 |
return (spa_export(zc->zc_name)); |
|
387 |
} |
|
388 |
||
389 |
static int |
|
390 |
zfs_ioc_pool_configs(zfs_cmd_t *zc) |
|
391 |
{ |
|
392 |
nvlist_t *configs; |
|
393 |
char *packed = NULL; |
|
394 |
size_t size = 0; |
|
395 |
int error; |
|
396 |
||
397 |
if ((configs = spa_all_configs(&zc->zc_cookie)) == NULL) |
|
398 |
return (EEXIST); |
|
399 |
||
400 |
VERIFY(nvlist_pack(configs, &packed, &size, NV_ENCODE_NATIVE, 0) == 0); |
|
401 |
||
402 |
if (size > zc->zc_config_dst_size) |
|
403 |
error = ENOMEM; |
|
404 |
else |
|
405 |
error = xcopyout(packed, (void *)(uintptr_t)zc->zc_config_dst, |
|
406 |
size); |
|
407 |
||
408 |
zc->zc_config_dst_size = size; |
|
409 |
||
410 |
kmem_free(packed, size); |
|
411 |
nvlist_free(configs); |
|
412 |
||
413 |
return (error); |
|
414 |
} |
|
415 |
||
416 |
static int |
|
417 |
zfs_ioc_pool_guid(zfs_cmd_t *zc) |
|
418 |
{ |
|
419 |
spa_t *spa; |
|
420 |
int error; |
|
421 |
||
422 |
error = spa_open(zc->zc_name, &spa, FTAG); |
|
423 |
if (error == 0) { |
|
424 |
zc->zc_pool_guid = spa_guid(spa); |
|
425 |
spa_close(spa, FTAG); |
|
426 |
} |
|
427 |
return (error); |
|
428 |
} |
|
429 |
||
430 |
static int |
|
431 |
zfs_ioc_pool_stats(zfs_cmd_t *zc) |
|
432 |
{ |
|
433 |
nvlist_t *config; |
|
434 |
char *packed = NULL; |
|
435 |
size_t size = 0; |
|
436 |
int error; |
|
437 |
||
438 |
error = spa_get_stats(zc->zc_name, &config); |
|
439 |
||
440 |
if (config != NULL) { |
|
441 |
VERIFY(nvlist_pack(config, &packed, &size, |
|
442 |
NV_ENCODE_NATIVE, 0) == 0); |
|
443 |
||
444 |
if (size > zc->zc_config_dst_size) |
|
445 |
error = ENOMEM; |
|
446 |
else if (xcopyout(packed, (void *)(uintptr_t)zc->zc_config_dst, |
|
447 |
size)) |
|
448 |
error = EFAULT; |
|
449 |
||
450 |
zc->zc_config_dst_size = size; |
|
451 |
||
452 |
kmem_free(packed, size); |
|
453 |
nvlist_free(config); |
|
454 |
} else { |
|
455 |
ASSERT(error != 0); |
|
456 |
} |
|
457 |
||
458 |
return (error); |
|
459 |
} |
|
460 |
||
461 |
/* |
|
462 |
* Try to import the given pool, returning pool stats as appropriate so that |
|
463 |
* user land knows which devices are available and overall pool health. |
|
464 |
*/ |
|
465 |
static int |
|
466 |
zfs_ioc_pool_tryimport(zfs_cmd_t *zc) |
|
467 |
{ |
|
468 |
nvlist_t *tryconfig, *config; |
|
469 |
char *packed = NULL; |
|
470 |
size_t size = 0; |
|
471 |
int error; |
|
472 |
||
473 |
if ((error = get_config(zc, &tryconfig)) != 0) |
|
474 |
return (error); |
|
475 |
||
476 |
config = spa_tryimport(tryconfig); |
|
477 |
||
478 |
nvlist_free(tryconfig); |
|
479 |
||
480 |
if (config == NULL) |
|
481 |
return (EINVAL); |
|
482 |
||
483 |
VERIFY(nvlist_pack(config, &packed, &size, NV_ENCODE_NATIVE, 0) == 0); |
|
484 |
||
485 |
if (size > zc->zc_config_dst_size) |
|
486 |
error = ENOMEM; |
|
487 |
else |
|
488 |
error = xcopyout(packed, (void *)(uintptr_t)zc->zc_config_dst, |
|
489 |
size); |
|
490 |
||
491 |
zc->zc_config_dst_size = size; |
|
492 |
||
493 |
kmem_free(packed, size); |
|
494 |
nvlist_free(config); |
|
495 |
||
496 |
return (error); |
|
497 |
} |
|
498 |
||
499 |
static int |
|
500 |
zfs_ioc_pool_scrub(zfs_cmd_t *zc) |
|
501 |
{ |
|
502 |
spa_t *spa; |
|
503 |
int error; |
|
504 |
||
505 |
error = spa_open(zc->zc_name, &spa, FTAG); |
|
506 |
if (error == 0) { |
|
507 |
error = spa_scrub(spa, zc->zc_cookie, B_FALSE); |
|
508 |
spa_close(spa, FTAG); |
|
509 |
} |
|
510 |
return (error); |
|
511 |
} |
|
512 |
||
513 |
static int |
|
514 |
zfs_ioc_pool_freeze(zfs_cmd_t *zc) |
|
515 |
{ |
|
516 |
spa_t *spa; |
|
517 |
int error; |
|
518 |
||
519 |
error = spa_open(zc->zc_name, &spa, FTAG); |
|
520 |
if (error == 0) { |
|
521 |
spa_freeze(spa); |
|
522 |
spa_close(spa, FTAG); |
|
523 |
} |
|
524 |
return (error); |
|
525 |
} |
|
526 |
||
527 |
static int |
|
528 |
zfs_ioc_vdev_add(zfs_cmd_t *zc) |
|
529 |
{ |
|
530 |
spa_t *spa; |
|
531 |
int error; |
|
532 |
nvlist_t *config; |
|
533 |
||
534 |
error = spa_open(zc->zc_name, &spa, FTAG); |
|
535 |
if (error != 0) |
|
536 |
return (error); |
|
537 |
||
538 |
if ((error = get_config(zc, &config)) == 0) { |
|
539 |
error = spa_vdev_add(spa, config); |
|
540 |
nvlist_free(config); |
|
541 |
} |
|
542 |
||
543 |
spa_close(spa, FTAG); |
|
544 |
return (error); |
|
545 |
} |
|
546 |
||
547 |
/* ARGSUSED */ |
|
548 |
static int |
|
549 |
zfs_ioc_vdev_remove(zfs_cmd_t *zc) |
|
550 |
{ |
|
551 |
return (ENOTSUP); |
|
552 |
} |
|
553 |
||
554 |
static int |
|
555 |
zfs_ioc_vdev_online(zfs_cmd_t *zc) |
|
556 |
{ |
|
557 |
spa_t *spa; |
|
558 |
char *path = zc->zc_prop_value; |
|
559 |
int error; |
|
560 |
||
561 |
error = spa_open(zc->zc_name, &spa, FTAG); |
|
562 |
if (error != 0) |
|
563 |
return (error); |
|
564 |
error = vdev_online(spa, path); |
|
565 |
spa_close(spa, FTAG); |
|
566 |
return (error); |
|
567 |
} |
|
568 |
||
569 |
static int |
|
570 |
zfs_ioc_vdev_offline(zfs_cmd_t *zc) |
|
571 |
{ |
|
572 |
spa_t *spa; |
|
573 |
char *path = zc->zc_prop_value; |
|
574 |
int error; |
|
575 |
||
576 |
error = spa_open(zc->zc_name, &spa, FTAG); |
|
577 |
if (error != 0) |
|
578 |
return (error); |
|
579 |
error = vdev_offline(spa, path); |
|
580 |
spa_close(spa, FTAG); |
|
581 |
return (error); |
|
582 |
} |
|
583 |
||
584 |
static int |
|
585 |
zfs_ioc_vdev_attach(zfs_cmd_t *zc) |
|
586 |
{ |
|
587 |
spa_t *spa; |
|
588 |
char *path = zc->zc_prop_value; |
|
589 |
int replacing = zc->zc_cookie; |
|
590 |
nvlist_t *config; |
|
591 |
int error; |
|
592 |
||
593 |
error = spa_open(zc->zc_name, &spa, FTAG); |
|
594 |
if (error != 0) |
|
595 |
return (error); |
|
596 |
||
597 |
if ((error = get_config(zc, &config)) == 0) { |
|
598 |
error = spa_vdev_attach(spa, path, config, replacing); |
|
599 |
nvlist_free(config); |
|
600 |
} |
|
601 |
||
602 |
spa_close(spa, FTAG); |
|
603 |
return (error); |
|
604 |
} |
|
605 |
||
606 |
static int |
|
607 |
zfs_ioc_vdev_detach(zfs_cmd_t *zc) |
|
608 |
{ |
|
609 |
spa_t *spa; |
|
610 |
char *path = zc->zc_prop_value; |
|
611 |
int error; |
|
612 |
||
613 |
error = spa_open(zc->zc_name, &spa, FTAG); |
|
614 |
if (error != 0) |
|
615 |
return (error); |
|
616 |
||
617 |
error = spa_vdev_detach(spa, path, 0, B_FALSE); |
|
618 |
||
619 |
spa_close(spa, FTAG); |
|
620 |
return (error); |
|
621 |
} |
|
622 |
||
623 |
static int |
|
1354
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
624 |
zfs_ioc_vdev_setpath(zfs_cmd_t *zc) |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
625 |
{ |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
626 |
spa_t *spa; |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
627 |
char *path = zc->zc_prop_value; |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
628 |
uint64_t guid = zc->zc_pool_guid; |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
629 |
int error; |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
630 |
|
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
631 |
error = spa_open(zc->zc_name, &spa, FTAG); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
632 |
if (error != 0) |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
633 |
return (error); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
634 |
|
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
635 |
error = spa_vdev_setpath(spa, guid, path); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
636 |
|
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
637 |
spa_close(spa, FTAG); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
638 |
return (error); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
639 |
} |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
640 |
|
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
641 |
|
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
642 |
static int |
789 | 643 |
zfs_get_stats(zfs_cmd_t *zc) |
644 |
{ |
|
645 |
char *name = zc->zc_name; |
|
646 |
zfs_stats_t *zs = &zc->zc_zfs_stats; |
|
647 |
int error; |
|
648 |
||
649 |
bzero(zs, sizeof (zfs_stats_t)); |
|
650 |
||
651 |
if ((error = dsl_prop_get_integer(name, "atime", |
|
652 |
&zs->zs_atime, zs->zs_atime_setpoint)) != 0 || |
|
653 |
(error = dsl_prop_get_integer(name, "recordsize", |
|
654 |
&zs->zs_recordsize, zs->zs_recordsize_setpoint)) != 0 || |
|
655 |
(error = dsl_prop_get_integer(name, "readonly", |
|
656 |
&zs->zs_readonly, zs->zs_readonly_setpoint)) != 0 || |
|
657 |
(error = dsl_prop_get_integer(name, "devices", |
|
658 |
&zs->zs_devices, zs->zs_devices_setpoint)) != 0 || |
|
659 |
(error = dsl_prop_get_integer(name, "setuid", |
|
660 |
&zs->zs_setuid, zs->zs_setuid_setpoint)) != 0 || |
|
661 |
(error = dsl_prop_get_integer(name, "exec", |
|
662 |
&zs->zs_exec, zs->zs_exec_setpoint)) != 0 || |
|
663 |
(error = dsl_prop_get_string(name, "mountpoint", zs->zs_mountpoint, |
|
664 |
sizeof (zs->zs_mountpoint), zs->zs_mountpoint_setpoint)) != 0 || |
|
665 |
(error = dsl_prop_get_string(name, "sharenfs", zs->zs_sharenfs, |
|
666 |
sizeof (zs->zs_sharenfs), zs->zs_sharenfs_setpoint)) != 0 || |
|
667 |
(error = dsl_prop_get_integer(name, "aclmode", |
|
668 |
&zs->zs_acl_mode, zs->zs_acl_mode_setpoint)) != 0 || |
|
669 |
(error = dsl_prop_get_integer(name, "snapdir", |
|
670 |
&zs->zs_snapdir, zs->zs_snapdir_setpoint)) != 0 || |
|
671 |
(error = dsl_prop_get_integer(name, "aclinherit", |
|
672 |
&zs->zs_acl_inherit, zs->zs_acl_inherit_setpoint)) != 0) |
|
673 |
return (error); |
|
674 |
||
675 |
return (0); |
|
676 |
} |
|
677 |
||
678 |
static int |
|
679 |
zfs_ioc_objset_stats(zfs_cmd_t *zc) |
|
680 |
{ |
|
681 |
objset_t *os = NULL; |
|
682 |
int error; |
|
683 |
||
684 |
retry: |
|
685 |
error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, |
|
686 |
DS_MODE_STANDARD | DS_MODE_READONLY, &os); |
|
687 |
if (error != 0) { |
|
688 |
/* |
|
689 |
* This is ugly: dmu_objset_open() can return EBUSY if |
|
690 |
* the objset is held exclusively. Fortunately this hold is |
|
691 |
* only for a short while, so we retry here. |
|
692 |
* This avoids user code having to handle EBUSY, |
|
693 |
* for example for a "zfs list". |
|
694 |
*/ |
|
695 |
if (error == EBUSY) { |
|
696 |
delay(1); |
|
697 |
goto retry; |
|
698 |
} |
|
699 |
return (error); |
|
700 |
} |
|
701 |
||
702 |
dmu_objset_stats(os, &zc->zc_objset_stats); |
|
703 |
||
704 |
switch (zc->zc_objset_stats.dds_type) { |
|
705 |
||
706 |
case DMU_OST_ZFS: |
|
707 |
error = zfs_get_stats(zc); |
|
708 |
break; |
|
709 |
||
710 |
case DMU_OST_ZVOL: |
|
711 |
error = zvol_get_stats(zc, os); |
|
712 |
break; |
|
713 |
} |
|
714 |
||
715 |
dmu_objset_close(os); |
|
716 |
return (error); |
|
717 |
} |
|
718 |
||
719 |
static int |
|
720 |
zfs_ioc_dataset_list_next(zfs_cmd_t *zc) |
|
721 |
{ |
|
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
722 |
objset_t *os; |
789 | 723 |
int error; |
724 |
char *p; |
|
725 |
||
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
726 |
retry: |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
727 |
error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
728 |
DS_MODE_STANDARD | DS_MODE_READONLY, &os); |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
729 |
if (error != 0) { |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
730 |
/* |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
731 |
* This is ugly: dmu_objset_open() can return EBUSY if |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
732 |
* the objset is held exclusively. Fortunately this hold is |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
733 |
* only for a short while, so we retry here. |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
734 |
* This avoids user code having to handle EBUSY, |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
735 |
* for example for a "zfs list". |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
736 |
*/ |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
737 |
if (error == EBUSY) { |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
738 |
delay(1); |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
739 |
goto retry; |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
740 |
} |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
741 |
if (error == ENOENT) |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
742 |
error = ESRCH; |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
743 |
return (error); |
789 | 744 |
} |
745 |
||
746 |
p = strrchr(zc->zc_name, '/'); |
|
747 |
if (p == NULL || p[1] != '\0') |
|
748 |
(void) strlcat(zc->zc_name, "/", sizeof (zc->zc_name)); |
|
749 |
p = zc->zc_name + strlen(zc->zc_name); |
|
750 |
||
751 |
do { |
|
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
752 |
error = dmu_dir_list_next(os, |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
753 |
sizeof (zc->zc_name) - (p - zc->zc_name), p, |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
754 |
NULL, &zc->zc_cookie); |
789 | 755 |
if (error == ENOENT) |
756 |
error = ESRCH; |
|
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
757 |
} while (error == 0 && !INGLOBALZONE(curproc) && |
789 | 758 |
!zone_dataset_visible(zc->zc_name, NULL)); |
759 |
||
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
760 |
/* |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
761 |
* If it's a hidden dataset (ie. with a '$' in its name), don't |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
762 |
* try to get stats for it. Userland will skip over it. |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
763 |
*/ |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
764 |
if (error == 0 && strchr(zc->zc_name, '$') == NULL) |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
765 |
error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
789 | 766 |
|
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
767 |
dmu_objset_close(os); |
789 | 768 |
return (error); |
769 |
} |
|
770 |
||
771 |
static int |
|
772 |
zfs_ioc_snapshot_list_next(zfs_cmd_t *zc) |
|
773 |
{ |
|
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
774 |
objset_t *os; |
789 | 775 |
int error; |
776 |
||
777 |
retry: |
|
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
778 |
error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
779 |
DS_MODE_STANDARD | DS_MODE_READONLY, &os); |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
780 |
if (error != 0) { |
789 | 781 |
/* |
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
782 |
* This is ugly: dmu_objset_open() can return EBUSY if |
789 | 783 |
* the objset is held exclusively. Fortunately this hold is |
784 |
* only for a short while, so we retry here. |
|
785 |
* This avoids user code having to handle EBUSY, |
|
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
786 |
* for example for a "zfs list". |
789 | 787 |
*/ |
788 |
if (error == EBUSY) { |
|
789 |
delay(1); |
|
790 |
goto retry; |
|
791 |
} |
|
792 |
if (error == ENOENT) |
|
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
793 |
error = ESRCH; |
789 | 794 |
return (error); |
795 |
} |
|
796 |
||
1003 | 797 |
/* |
798 |
* A dataset name of maximum length cannot have any snapshots, |
|
799 |
* so exit immediately. |
|
800 |
*/ |
|
801 |
if (strlcat(zc->zc_name, "@", sizeof (zc->zc_name)) >= MAXNAMELEN) { |
|
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
802 |
dmu_objset_close(os); |
1003 | 803 |
return (ESRCH); |
789 | 804 |
} |
805 |
||
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
806 |
error = dmu_snapshot_list_next(os, |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
807 |
sizeof (zc->zc_name) - strlen(zc->zc_name), |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
808 |
zc->zc_name + strlen(zc->zc_name), NULL, &zc->zc_cookie); |
789 | 809 |
if (error == ENOENT) |
810 |
error = ESRCH; |
|
811 |
||
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
812 |
if (error == 0) |
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
813 |
error = zfs_ioc_objset_stats(zc); /* fill in the stats */ |
789 | 814 |
|
885
d925b21dba78
6347493 tar of 25K empty directory entries in ZFS takes 30+ seconds ...
ahrens
parents:
849
diff
changeset
|
815 |
dmu_objset_close(os); |
789 | 816 |
return (error); |
817 |
} |
|
818 |
||
819 |
static int |
|
820 |
zfs_ioc_set_prop(zfs_cmd_t *zc) |
|
821 |
{ |
|
822 |
return (dsl_prop_set(zc->zc_name, zc->zc_prop_name, |
|
823 |
zc->zc_intsz, zc->zc_numints, zc->zc_prop_value)); |
|
824 |
} |
|
825 |
||
826 |
static int |
|
827 |
zfs_ioc_set_quota(zfs_cmd_t *zc) |
|
828 |
{ |
|
829 |
return (dsl_dir_set_quota(zc->zc_name, zc->zc_cookie)); |
|
830 |
} |
|
831 |
||
832 |
static int |
|
833 |
zfs_ioc_set_reservation(zfs_cmd_t *zc) |
|
834 |
{ |
|
835 |
return (dsl_dir_set_reservation(zc->zc_name, zc->zc_cookie)); |
|
836 |
} |
|
837 |
||
838 |
static int |
|
839 |
zfs_ioc_set_volsize(zfs_cmd_t *zc) |
|
840 |
{ |
|
841 |
return (zvol_set_volsize(zc)); |
|
842 |
} |
|
843 |
||
844 |
static int |
|
845 |
zfs_ioc_set_volblocksize(zfs_cmd_t *zc) |
|
846 |
{ |
|
847 |
return (zvol_set_volblocksize(zc)); |
|
848 |
} |
|
849 |
||
850 |
static int |
|
851 |
zfs_ioc_create_minor(zfs_cmd_t *zc) |
|
852 |
{ |
|
853 |
return (zvol_create_minor(zc)); |
|
854 |
} |
|
855 |
||
856 |
static int |
|
857 |
zfs_ioc_remove_minor(zfs_cmd_t *zc) |
|
858 |
{ |
|
859 |
return (zvol_remove_minor(zc)); |
|
860 |
} |
|
861 |
||
862 |
/* |
|
863 |
* Search the vfs list for a specified resource. Returns a pointer to it |
|
864 |
* or NULL if no suitable entry is found. The caller of this routine |
|
865 |
* is responsible for releasing the returned vfs pointer. |
|
866 |
*/ |
|
867 |
static vfs_t * |
|
868 |
zfs_get_vfs(const char *resource) |
|
869 |
{ |
|
870 |
struct vfs *vfsp; |
|
871 |
struct vfs *vfs_found = NULL; |
|
872 |
||
873 |
vfs_list_read_lock(); |
|
874 |
vfsp = rootvfs; |
|
875 |
do { |
|
876 |
if (strcmp(refstr_value(vfsp->vfs_resource), resource) == 0) { |
|
877 |
VFS_HOLD(vfsp); |
|
878 |
vfs_found = vfsp; |
|
879 |
break; |
|
880 |
} |
|
881 |
vfsp = vfsp->vfs_next; |
|
882 |
} while (vfsp != rootvfs); |
|
883 |
vfs_list_unlock(); |
|
884 |
return (vfs_found); |
|
885 |
} |
|
886 |
||
887 |
static void |
|
888 |
zfs_create_cb(objset_t *os, void *arg, dmu_tx_t *tx) |
|
889 |
{ |
|
890 |
zfs_cmd_t *zc = arg; |
|
891 |
zfs_create_fs(os, (cred_t *)(uintptr_t)zc->zc_cred, tx); |
|
892 |
} |
|
893 |
||
894 |
static int |
|
895 |
zfs_ioc_create(zfs_cmd_t *zc) |
|
896 |
{ |
|
897 |
objset_t *clone; |
|
898 |
int error = 0; |
|
899 |
void (*cbfunc)(objset_t *os, void *arg, dmu_tx_t *tx); |
|
900 |
dmu_objset_type_t type = zc->zc_objset_type; |
|
901 |
||
902 |
switch (type) { |
|
903 |
||
904 |
case DMU_OST_ZFS: |
|
905 |
cbfunc = zfs_create_cb; |
|
906 |
break; |
|
907 |
||
908 |
case DMU_OST_ZVOL: |
|
909 |
cbfunc = zvol_create_cb; |
|
910 |
break; |
|
911 |
||
912 |
default: |
|
913 |
return (EINVAL); |
|
914 |
} |
|
915 |
||
916 |
if (zc->zc_filename[0] != '\0') { |
|
917 |
/* |
|
918 |
* We're creating a clone of an existing snapshot. |
|
919 |
*/ |
|
920 |
zc->zc_filename[sizeof (zc->zc_filename) - 1] = '\0'; |
|
921 |
if (dataset_namecheck(zc->zc_filename, NULL, NULL) != 0) |
|
922 |
return (EINVAL); |
|
923 |
||
924 |
error = dmu_objset_open(zc->zc_filename, type, |
|
925 |
DS_MODE_STANDARD | DS_MODE_READONLY, &clone); |
|
926 |
if (error) |
|
927 |
return (error); |
|
928 |
error = dmu_objset_create(zc->zc_name, type, clone, NULL, NULL); |
|
929 |
dmu_objset_close(clone); |
|
930 |
} else if (strchr(zc->zc_name, '@') != 0) { |
|
931 |
/* |
|
932 |
* We're taking a snapshot of an existing dataset. |
|
933 |
*/ |
|
934 |
error = dmu_objset_create(zc->zc_name, type, NULL, NULL, NULL); |
|
935 |
} else { |
|
936 |
/* |
|
937 |
* We're creating a new dataset. |
|
938 |
*/ |
|
939 |
if (type == DMU_OST_ZVOL) { |
|
1133
335d069294d1
6357470 vdev_raidz.c has unused RAIDZ_SINGLE define, code
eschrock
parents:
1003
diff
changeset
|
940 |
|
335d069294d1
6357470 vdev_raidz.c has unused RAIDZ_SINGLE define, code
eschrock
parents:
1003
diff
changeset
|
941 |
if ((error = zvol_check_volblocksize(zc)) != 0) |
789 | 942 |
return (error); |
1133
335d069294d1
6357470 vdev_raidz.c has unused RAIDZ_SINGLE define, code
eschrock
parents:
1003
diff
changeset
|
943 |
|
335d069294d1
6357470 vdev_raidz.c has unused RAIDZ_SINGLE define, code
eschrock
parents:
1003
diff
changeset
|
944 |
if ((error = zvol_check_volsize(zc, |
335d069294d1
6357470 vdev_raidz.c has unused RAIDZ_SINGLE define, code
eschrock
parents:
1003
diff
changeset
|
945 |
zc->zc_volblocksize)) != 0) |
789 | 946 |
return (error); |
947 |
} |
|
948 |
error = dmu_objset_create(zc->zc_name, type, NULL, cbfunc, zc); |
|
949 |
} |
|
950 |
return (error); |
|
951 |
} |
|
952 |
||
953 |
static int |
|
954 |
zfs_ioc_destroy(zfs_cmd_t *zc) |
|
955 |
{ |
|
956 |
if (strchr(zc->zc_name, '@') != NULL && |
|
957 |
zc->zc_objset_type == DMU_OST_ZFS) { |
|
958 |
vfs_t *vfsp; |
|
959 |
int err; |
|
960 |
||
961 |
/* |
|
962 |
* Snapshots under .zfs control must be unmounted |
|
963 |
* before they can be destroyed. |
|
964 |
*/ |
|
965 |
if ((vfsp = zfs_get_vfs(zc->zc_name)) != NULL) { |
|
966 |
/* |
|
967 |
* Always force the unmount for snapshots. |
|
968 |
*/ |
|
969 |
int flag = MS_FORCE; |
|
970 |
||
971 |
if ((err = vn_vfswlock(vfsp->vfs_vnodecovered)) != 0) { |
|
972 |
VFS_RELE(vfsp); |
|
973 |
return (err); |
|
974 |
} |
|
975 |
VFS_RELE(vfsp); |
|
976 |
if ((err = dounmount(vfsp, flag, kcred)) != 0) |
|
977 |
return (err); |
|
978 |
} |
|
979 |
} |
|
980 |
||
981 |
return (dmu_objset_destroy(zc->zc_name)); |
|
982 |
} |
|
983 |
||
984 |
static int |
|
985 |
zfs_ioc_rollback(zfs_cmd_t *zc) |
|
986 |
{ |
|
987 |
return (dmu_objset_rollback(zc->zc_name)); |
|
988 |
} |
|
989 |
||
990 |
static int |
|
991 |
zfs_ioc_rename(zfs_cmd_t *zc) |
|
992 |
{ |
|
993 |
zc->zc_prop_value[sizeof (zc->zc_prop_value) - 1] = '\0'; |
|
994 |
if (dataset_namecheck(zc->zc_prop_value, NULL, NULL) != 0) |
|
995 |
return (EINVAL); |
|
996 |
||
997 |
if (strchr(zc->zc_name, '@') != NULL && |
|
998 |
zc->zc_objset_type == DMU_OST_ZFS) { |
|
999 |
vfs_t *vfsp; |
|
1000 |
int err; |
|
1001 |
||
1002 |
/* |
|
1003 |
* Snapshots under .zfs control must be unmounted |
|
1004 |
* before they can be renamed. |
|
1005 |
*/ |
|
1006 |
if ((vfsp = zfs_get_vfs(zc->zc_name)) != NULL) { |
|
1007 |
/* |
|
1008 |
* Always force the unmount for snapshots. |
|
1009 |
*/ |
|
1010 |
int flag = MS_FORCE; |
|
1011 |
||
1012 |
if ((err = vn_vfswlock(vfsp->vfs_vnodecovered)) != 0) { |
|
1013 |
VFS_RELE(vfsp); |
|
1014 |
return (err); |
|
1015 |
} |
|
1016 |
VFS_RELE(vfsp); |
|
1017 |
if ((err = dounmount(vfsp, flag, kcred)) != 0) |
|
1018 |
return (err); |
|
1019 |
} |
|
1020 |
} |
|
1021 |
||
1022 |
return (dmu_objset_rename(zc->zc_name, zc->zc_prop_value)); |
|
1023 |
} |
|
1024 |
||
1025 |
static int |
|
1026 |
zfs_ioc_recvbackup(zfs_cmd_t *zc) |
|
1027 |
{ |
|
1028 |
file_t *fp; |
|
1029 |
int error, fd; |
|
1030 |
||
1031 |
fd = zc->zc_cookie; |
|
1032 |
fp = getf(fd); |
|
1033 |
if (fp == NULL) |
|
1034 |
return (EBADF); |
|
1035 |
error = dmu_recvbackup(&zc->zc_begin_record, &zc->zc_cookie, |
|
1036 |
fp->f_vnode, fp->f_offset); |
|
1037 |
releasef(fd); |
|
1038 |
return (error); |
|
1039 |
} |
|
1040 |
||
1041 |
static int |
|
1042 |
zfs_ioc_sendbackup(zfs_cmd_t *zc) |
|
1043 |
{ |
|
1044 |
objset_t *fromsnap = NULL; |
|
1045 |
objset_t *tosnap; |
|
1046 |
file_t *fp; |
|
1047 |
int error; |
|
1048 |
||
1049 |
error = dmu_objset_open(zc->zc_name, DMU_OST_ANY, |
|
1050 |
DS_MODE_STANDARD | DS_MODE_READONLY, &tosnap); |
|
1051 |
if (error) |
|
1052 |
return (error); |
|
1053 |
||
1054 |
if (zc->zc_prop_value[0] != '\0') { |
|
1055 |
error = dmu_objset_open(zc->zc_prop_value, DMU_OST_ANY, |
|
1056 |
DS_MODE_STANDARD | DS_MODE_READONLY, &fromsnap); |
|
1057 |
if (error) { |
|
1058 |
dmu_objset_close(tosnap); |
|
1059 |
return (error); |
|
1060 |
} |
|
1061 |
} |
|
1062 |
||
1063 |
fp = getf(zc->zc_cookie); |
|
1064 |
if (fp == NULL) { |
|
1065 |
dmu_objset_close(tosnap); |
|
1066 |
if (fromsnap) |
|
1067 |
dmu_objset_close(fromsnap); |
|
1068 |
return (EBADF); |
|
1069 |
} |
|
1070 |
||
1071 |
error = dmu_sendbackup(tosnap, fromsnap, fp->f_vnode); |
|
1072 |
||
1073 |
releasef(zc->zc_cookie); |
|
1074 |
if (fromsnap) |
|
1075 |
dmu_objset_close(fromsnap); |
|
1076 |
dmu_objset_close(tosnap); |
|
1077 |
return (error); |
|
1078 |
} |
|
1079 |
||
1080 |
static zfs_ioc_vec_t zfs_ioc_vec[] = { |
|
1081 |
{ zfs_ioc_pool_create, zfs_secpolicy_config, pool_name }, |
|
1082 |
{ zfs_ioc_pool_destroy, zfs_secpolicy_config, pool_name }, |
|
1083 |
{ zfs_ioc_pool_import, zfs_secpolicy_config, pool_name }, |
|
1084 |
{ zfs_ioc_pool_export, zfs_secpolicy_config, pool_name }, |
|
1085 |
{ zfs_ioc_pool_configs, zfs_secpolicy_none, no_name }, |
|
1086 |
{ zfs_ioc_pool_guid, zfs_secpolicy_read, pool_name }, |
|
1087 |
{ zfs_ioc_pool_stats, zfs_secpolicy_read, pool_name }, |
|
1088 |
{ zfs_ioc_pool_tryimport, zfs_secpolicy_config, no_name }, |
|
1089 |
{ zfs_ioc_pool_scrub, zfs_secpolicy_config, pool_name }, |
|
1090 |
{ zfs_ioc_pool_freeze, zfs_secpolicy_config, no_name }, |
|
1091 |
{ zfs_ioc_vdev_add, zfs_secpolicy_config, pool_name }, |
|
1092 |
{ zfs_ioc_vdev_remove, zfs_secpolicy_config, pool_name }, |
|
1093 |
{ zfs_ioc_vdev_online, zfs_secpolicy_config, pool_name }, |
|
1094 |
{ zfs_ioc_vdev_offline, zfs_secpolicy_config, pool_name }, |
|
1095 |
{ zfs_ioc_vdev_attach, zfs_secpolicy_config, pool_name }, |
|
1096 |
{ zfs_ioc_vdev_detach, zfs_secpolicy_config, pool_name }, |
|
1354
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1133
diff
changeset
|
1097 |
{ zfs_ioc_vdev_setpath, zfs_secpolicy_config, pool_name }, |
789 | 1098 |
{ zfs_ioc_objset_stats, zfs_secpolicy_read, dataset_name }, |
1099 |
{ zfs_ioc_dataset_list_next, zfs_secpolicy_read, dataset_name }, |
|
1100 |
{ zfs_ioc_snapshot_list_next, zfs_secpolicy_read, dataset_name }, |
|
1101 |
{ zfs_ioc_set_prop, zfs_secpolicy_setprop, dataset_name }, |
|
1102 |
{ zfs_ioc_set_quota, zfs_secpolicy_quota, dataset_name }, |
|
1103 |
{ zfs_ioc_set_reservation, zfs_secpolicy_write, dataset_name }, |
|
1104 |
{ zfs_ioc_set_volsize, zfs_secpolicy_config, dataset_name }, |
|
1105 |
{ zfs_ioc_set_volblocksize, zfs_secpolicy_config, dataset_name }, |
|
1106 |
{ zfs_ioc_create_minor, zfs_secpolicy_config, dataset_name }, |
|
1107 |
{ zfs_ioc_remove_minor, zfs_secpolicy_config, dataset_name }, |
|
1108 |
{ zfs_ioc_create, zfs_secpolicy_parent, dataset_name }, |
|
1109 |
{ zfs_ioc_destroy, zfs_secpolicy_parent, dataset_name }, |
|
1110 |
{ zfs_ioc_rollback, zfs_secpolicy_write, dataset_name }, |
|
1111 |
{ zfs_ioc_rename, zfs_secpolicy_write, dataset_name }, |
|
1112 |
{ zfs_ioc_recvbackup, zfs_secpolicy_write, dataset_name }, |
|
1113 |
{ zfs_ioc_sendbackup, zfs_secpolicy_write, dataset_name }, |
|
1114 |
}; |
|
1115 |
||
1116 |
static int |
|
1117 |
zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp) |
|
1118 |
{ |
|
1119 |
zfs_cmd_t *zc; |
|
1120 |
uint_t vec; |
|
1121 |
int error; |
|
1122 |
||
1123 |
if (getminor(dev) != 0) |
|
1124 |
return (zvol_ioctl(dev, cmd, arg, flag, cr, rvalp)); |
|
1125 |
||
1126 |
vec = cmd - ZFS_IOC; |
|
1127 |
||
1128 |
if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0])) |
|
1129 |
return (EINVAL); |
|
1130 |
||
1131 |
zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP); |
|
1132 |
||
1133 |
error = xcopyin((void *)arg, zc, sizeof (zfs_cmd_t)); |
|
1134 |
||
1135 |
if (error == 0) { |
|
1136 |
zc->zc_cred = (uintptr_t)cr; |
|
1137 |
zc->zc_dev = dev; |
|
1138 |
error = zfs_ioc_vec[vec].zvec_secpolicy(zc->zc_name, |
|
1139 |
zc->zc_prop_name, cr); |
|
1140 |
} |
|
1141 |
||
1142 |
/* |
|
1143 |
* Ensure that all pool/dataset names are valid before we pass down to |
|
1144 |
* the lower layers. |
|
1145 |
*/ |
|
1146 |
if (error == 0) { |
|
1147 |
zc->zc_name[sizeof (zc->zc_name) - 1] = '\0'; |
|
1148 |
switch (zfs_ioc_vec[vec].zvec_namecheck) { |
|
1149 |
case pool_name: |
|
1150 |
if (pool_namecheck(zc->zc_name, NULL, NULL) != 0) |
|
1151 |
error = EINVAL; |
|
1152 |
break; |
|
1153 |
||
1154 |
case dataset_name: |
|
1155 |
if (dataset_namecheck(zc->zc_name, NULL, NULL) != 0) |
|
1156 |
error = EINVAL; |
|
1157 |
break; |
|
1158 |
} |
|
1159 |
} |
|
1160 |
||
1161 |
if (error == 0) |
|
1162 |
error = zfs_ioc_vec[vec].zvec_func(zc); |
|
1163 |
||
1164 |
if (error == 0 || error == ENOMEM) { |
|
1165 |
int rc = xcopyout(zc, (void *)arg, sizeof (zfs_cmd_t)); |
|
1166 |
if (error == 0) |
|
1167 |
error = rc; |
|
1168 |
} |
|
1169 |
||
1170 |
kmem_free(zc, sizeof (zfs_cmd_t)); |
|
1171 |
return (error); |
|
1172 |
} |
|
1173 |
||
1174 |
static int |
|
1175 |
zfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) |
|
1176 |
{ |
|
1177 |
if (cmd != DDI_ATTACH) |
|
1178 |
return (DDI_FAILURE); |
|
1179 |
||
1180 |
if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0, |
|
1181 |
DDI_PSEUDO, 0) == DDI_FAILURE) |
|
1182 |
return (DDI_FAILURE); |
|
1183 |
||
1184 |
zfs_dip = dip; |
|
1185 |
||
1186 |
ddi_report_dev(dip); |
|
1187 |
||
1188 |
return (DDI_SUCCESS); |
|
1189 |
} |
|
1190 |
||
1191 |
static int |
|
1192 |
zfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) |
|
1193 |
{ |
|
1194 |
if (spa_busy() || zfs_busy() || zvol_busy()) |
|
1195 |
return (DDI_FAILURE); |
|
1196 |
||
1197 |
if (cmd != DDI_DETACH) |
|
1198 |
return (DDI_FAILURE); |
|
1199 |
||
1200 |
zfs_dip = NULL; |
|
1201 |
||
1202 |
ddi_prop_remove_all(dip); |
|
1203 |
ddi_remove_minor_node(dip, NULL); |
|
1204 |
||
1205 |
return (DDI_SUCCESS); |
|
1206 |
} |
|
1207 |
||
1208 |
/*ARGSUSED*/ |
|
1209 |
static int |
|
1210 |
zfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) |
|
1211 |
{ |
|
1212 |
switch (infocmd) { |
|
1213 |
case DDI_INFO_DEVT2DEVINFO: |
|
1214 |
*result = zfs_dip; |
|
1215 |
return (DDI_SUCCESS); |
|
1216 |
||
1217 |
case DDI_INFO_DEVT2INSTANCE: |
|
849
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
1218 |
*result = (void *)0; |
789 | 1219 |
return (DDI_SUCCESS); |
1220 |
} |
|
1221 |
||
1222 |
return (DDI_FAILURE); |
|
1223 |
} |
|
1224 |
||
1225 |
/* |
|
1226 |
* OK, so this is a little weird. |
|
1227 |
* |
|
1228 |
* /dev/zfs is the control node, i.e. minor 0. |
|
1229 |
* /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0. |
|
1230 |
* |
|
1231 |
* /dev/zfs has basically nothing to do except serve up ioctls, |
|
1232 |
* so most of the standard driver entry points are in zvol.c. |
|
1233 |
*/ |
|
1234 |
static struct cb_ops zfs_cb_ops = { |
|
1235 |
zvol_open, /* open */ |
|
1236 |
zvol_close, /* close */ |
|
1237 |
zvol_strategy, /* strategy */ |
|
1238 |
nodev, /* print */ |
|
1239 |
nodev, /* dump */ |
|
1240 |
zvol_read, /* read */ |
|
1241 |
zvol_write, /* write */ |
|
1242 |
zfsdev_ioctl, /* ioctl */ |
|
1243 |
nodev, /* devmap */ |
|
1244 |
nodev, /* mmap */ |
|
1245 |
nodev, /* segmap */ |
|
1246 |
nochpoll, /* poll */ |
|
1247 |
ddi_prop_op, /* prop_op */ |
|
1248 |
NULL, /* streamtab */ |
|
1249 |
D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */ |
|
1250 |
CB_REV, /* version */ |
|
1251 |
zvol_aread, /* async read */ |
|
1252 |
zvol_awrite, /* async write */ |
|
1253 |
}; |
|
1254 |
||
1255 |
static struct dev_ops zfs_dev_ops = { |
|
1256 |
DEVO_REV, /* version */ |
|
1257 |
0, /* refcnt */ |
|
1258 |
zfs_info, /* info */ |
|
1259 |
nulldev, /* identify */ |
|
1260 |
nulldev, /* probe */ |
|
1261 |
zfs_attach, /* attach */ |
|
1262 |
zfs_detach, /* detach */ |
|
1263 |
nodev, /* reset */ |
|
1264 |
&zfs_cb_ops, /* driver operations */ |
|
1265 |
NULL /* no bus operations */ |
|
1266 |
}; |
|
1267 |
||
1268 |
static struct modldrv zfs_modldrv = { |
|
1269 |
&mod_driverops, "ZFS storage pool version 1", &zfs_dev_ops |
|
1270 |
}; |
|
1271 |
||
1272 |
static struct modlinkage modlinkage = { |
|
1273 |
MODREV_1, |
|
1274 |
(void *)&zfs_modlfs, |
|
1275 |
(void *)&zfs_modldrv, |
|
1276 |
NULL |
|
1277 |
}; |
|
1278 |
||
1279 |
int |
|
1280 |
_init(void) |
|
1281 |
{ |
|
1282 |
int error; |
|
1283 |
||
849
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
1284 |
spa_init(FREAD | FWRITE); |
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
1285 |
zfs_init(); |
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
1286 |
zvol_init(); |
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
1287 |
|
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
1288 |
if ((error = mod_install(&modlinkage)) != 0) { |
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
1289 |
zvol_fini(); |
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
1290 |
zfs_fini(); |
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
1291 |
spa_fini(); |
789 | 1292 |
return (error); |
849
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
1293 |
} |
789 | 1294 |
|
1295 |
error = ldi_ident_from_mod(&modlinkage, &zfs_li); |
|
1296 |
ASSERT(error == 0); |
|
1297 |
||
1298 |
return (0); |
|
1299 |
} |
|
1300 |
||
1301 |
int |
|
1302 |
_fini(void) |
|
1303 |
{ |
|
1304 |
int error; |
|
1305 |
||
1306 |
if (spa_busy() || zfs_busy() || zvol_busy()) |
|
1307 |
return (EBUSY); |
|
1308 |
||
1309 |
if ((error = mod_remove(&modlinkage)) != 0) |
|
1310 |
return (error); |
|
1311 |
||
1312 |
zvol_fini(); |
|
1313 |
zfs_fini(); |
|
1314 |
spa_fini(); |
|
1315 |
||
1316 |
ldi_ident_release(zfs_li); |
|
1317 |
zfs_li = NULL; |
|
1318 |
||
1319 |
return (error); |
|
1320 |
} |
|
1321 |
||
1322 |
int |
|
1323 |
_info(struct modinfo *modinfop) |
|
1324 |
{ |
|
1325 |
return (mod_info(&modlinkage, modinfop)); |
|
1326 |
} |