author | carlsonj |
Fri, 07 Apr 2006 13:37:39 -0700 | |
changeset 1769 | 338500d67d4f |
parent 1676 | 37f4a3e2bd99 |
child 2110 | 31cba59b38be |
permissions | -rw-r--r-- |
0 | 1 |
/* |
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* 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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1676 | 5 |
* Common Development and Distribution License (the "License"). |
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* You may not use this file except in compliance with the License. |
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0 | 7 |
* |
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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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1676 | 22 |
* Copyright 2006 Sun Microsystems, Inc. All rights reserved. |
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* Use is subject to license terms. |
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*/ |
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||
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#ifndef _SYS_ZONE_H |
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27 |
#define _SYS_ZONE_H |
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28 |
||
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#pragma ident "%Z%%M% %I% %E% SMI" |
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31 |
#include <sys/types.h> |
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32 |
#include <sys/mutex.h> |
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#include <sys/param.h> |
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#include <sys/rctl.h> |
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#include <sys/pset.h> |
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1676 | 36 |
#include <sys/tsol/label.h> |
0 | 37 |
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#ifdef __cplusplus |
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39 |
extern "C" { |
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40 |
#endif |
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41 |
||
42 |
/* |
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* NOTE |
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* |
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* The contents of this file are private to the implementation of |
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* Solaris and are subject to change at any time without notice. |
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* Applications and drivers using these interfaces may fail to |
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48 |
* run on future releases. |
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49 |
*/ |
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50 |
||
51 |
/* Available both in kernel and for user space */ |
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52 |
||
53 |
/* zone id restrictions and special ids */ |
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54 |
#define MAX_ZONEID 9999 |
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55 |
#define MIN_USERZONEID 1 /* lowest user-creatable zone ID */ |
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56 |
#define MIN_ZONEID 0 /* minimum zone ID on system */ |
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57 |
#define GLOBAL_ZONEID 0 |
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58 |
#define ZONEID_WIDTH 4 /* for printf */ |
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59 |
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1676 | 60 |
/* |
61 |
* Special zoneid_t token to refer to all zones. |
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62 |
*/ |
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63 |
#define ALL_ZONES (-1) |
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64 |
||
0 | 65 |
/* system call subcodes */ |
66 |
#define ZONE_CREATE 0 |
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67 |
#define ZONE_DESTROY 1 |
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68 |
#define ZONE_GETATTR 2 |
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69 |
#define ZONE_ENTER 3 |
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70 |
#define ZONE_LIST 4 |
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71 |
#define ZONE_SHUTDOWN 5 |
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#define ZONE_LOOKUP 6 |
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#define ZONE_BOOT 7 |
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813 | 74 |
#define ZONE_VERSION 8 |
0 | 75 |
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/* zone attributes */ |
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#define ZONE_ATTR_ROOT 1 |
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#define ZONE_ATTR_NAME 2 |
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#define ZONE_ATTR_STATUS 3 |
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#define ZONE_ATTR_PRIVSET 4 |
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#define ZONE_ATTR_UNIQID 5 |
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#define ZONE_ATTR_POOLID 6 |
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#define ZONE_ATTR_INITPID 7 |
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#define ZONE_ATTR_SLBL 8 |
0 | 85 |
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#define ZONE_EVENT_CHANNEL "com.sun:zones:status" |
87 |
#define ZONE_EVENT_STATUS_CLASS "status" |
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#define ZONE_EVENT_STATUS_SUBCLASS "change" |
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90 |
#define ZONE_EVENT_UNINITIALIZED "uninitialized" |
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#define ZONE_EVENT_READY "ready" |
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#define ZONE_EVENT_RUNNING "running" |
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#define ZONE_EVENT_SHUTTING_DOWN "shutting_down" |
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95 |
#define ZONE_CB_NAME "zonename" |
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#define ZONE_CB_NEWSTATE "newstate" |
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#define ZONE_CB_OLDSTATE "oldstate" |
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#define ZONE_CB_TIMESTAMP "when" |
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#define ZONE_CB_ZONEID "zoneid" |
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0 | 101 |
#ifdef _SYSCALL32 |
102 |
typedef struct { |
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103 |
caddr32_t zone_name; |
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104 |
caddr32_t zone_root; |
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105 |
caddr32_t zone_privs; |
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813 | 106 |
size32_t zone_privssz; |
0 | 107 |
caddr32_t rctlbuf; |
108 |
size32_t rctlbufsz; |
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109 |
caddr32_t extended_error; |
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789 | 110 |
caddr32_t zfsbuf; |
111 |
size32_t zfsbufsz; |
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1676 | 112 |
int match; |
113 |
int doi; |
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caddr32_t label; |
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0 | 115 |
} zone_def32; |
116 |
#endif |
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117 |
typedef struct { |
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118 |
const char *zone_name; |
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119 |
const char *zone_root; |
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120 |
const struct priv_set *zone_privs; |
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813 | 121 |
size_t zone_privssz; |
0 | 122 |
const char *rctlbuf; |
123 |
size_t rctlbufsz; |
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124 |
int *extended_error; |
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const char *zfsbuf; |
126 |
size_t zfsbufsz; |
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int match; /* match level */ |
128 |
int doi; /* DOI for label */ |
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const bslabel_t *label; /* label associated with zone */ |
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0 | 130 |
} zone_def; |
131 |
||
132 |
/* extended error information */ |
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#define ZE_UNKNOWN 0 /* No extended error info */ |
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#define ZE_CHROOTED 1 /* tried to zone_create from chroot */ |
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#define ZE_AREMOUNTS 2 /* there are mounts within the zone */ |
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136 |
||
137 |
/* zone_status */ |
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138 |
typedef enum { |
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ZONE_IS_UNINITIALIZED = 0, |
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ZONE_IS_READY, |
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ZONE_IS_BOOTING, |
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ZONE_IS_RUNNING, |
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ZONE_IS_SHUTTING_DOWN, |
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ZONE_IS_EMPTY, |
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ZONE_IS_DOWN, |
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ZONE_IS_DYING, |
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ZONE_IS_DEAD |
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} zone_status_t; |
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#define ZONE_MIN_STATE ZONE_IS_UNINITIALIZED |
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#define ZONE_MAX_STATE ZONE_IS_DEAD |
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151 |
||
152 |
/* |
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* Valid commands which may be issued by zoneadm to zoneadmd. The kernel also |
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* communicates with zoneadmd, but only uses Z_REBOOT and Z_HALT. |
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*/ |
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156 |
typedef enum zone_cmd { |
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Z_READY, Z_BOOT, Z_REBOOT, Z_HALT, Z_NOTE_UNINSTALLING, |
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Z_MOUNT, Z_UNMOUNT |
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0 | 159 |
} zone_cmd_t; |
160 |
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161 |
#define ZONEBOOTARGS_MAX 257 /* uadmin()'s buffer is 257 bytes. */ |
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162 |
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163 |
/* |
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* The structure of a request to zoneadmd. |
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*/ |
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typedef struct zone_cmd_arg { |
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uint64_t uniqid; /* unique "generation number" */ |
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zone_cmd_t cmd; /* requested action */ |
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char locale[MAXPATHLEN]; /* locale in which to render messages */ |
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char bootbuf[ZONEBOOTARGS_MAX]; /* arguments passed to zone_boot() */ |
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} zone_cmd_arg_t; |
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172 |
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173 |
/* |
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* Structure of zoneadmd's response to a request. A NULL return value means |
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* the caller should attempt to restart zoneadmd and retry. |
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*/ |
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typedef struct zone_cmd_rval { |
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int rval; /* return value of request */ |
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char errbuf[1]; /* variable-sized buffer containing error messages */ |
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180 |
} zone_cmd_rval_t; |
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181 |
||
182 |
/* |
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183 |
* The zone support infrastructure uses the zone name as a component |
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* of unix domain (AF_UNIX) sockets, which are limited to 108 characters |
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* in length, so ZONENAME_MAX is limited by that. |
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186 |
*/ |
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187 |
#define ZONENAME_MAX 64 |
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188 |
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189 |
#define GLOBAL_ZONENAME "global" |
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190 |
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191 |
/* |
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192 |
* Extended Regular expression (see regex(5)) which matches all valid zone |
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* names. |
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194 |
*/ |
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195 |
#define ZONENAME_REGEXP "[a-zA-Z0-9][-_.a-zA-Z0-9]{0,62}" |
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196 |
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197 |
/* |
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198 |
* Where the zones support infrastructure places temporary files. |
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199 |
*/ |
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200 |
#define ZONES_TMPDIR "/var/run/zones" |
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201 |
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202 |
/* |
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203 |
* The path to the door used by clients to communicate with zoneadmd. |
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204 |
*/ |
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#define ZONE_DOOR_PATH ZONES_TMPDIR "/%s.zoneadmd_door" |
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206 |
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207 |
#ifdef _KERNEL |
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208 |
/* |
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209 |
* We need to protect the definition of 'list_t' from userland applications and |
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* libraries which may be defining ther own versions. |
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211 |
*/ |
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212 |
#include <sys/list.h> |
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213 |
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214 |
#define GLOBAL_ZONEUNIQID 0 /* uniqid of the global zone */ |
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215 |
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216 |
/* zone_flags */ |
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217 |
#define ZF_DESTROYED 0x1 /* ZSD destructor callbacks run */ |
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changeset
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#define ZF_HASHED_LABEL 0x2 /* zone has a unique label */ |
338500d67d4f
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changeset
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219 |
#define ZF_IS_SCRATCH 0x4 /* scratch zone */ |
0 | 220 |
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221 |
struct pool; |
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222 |
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789 | 223 |
/* |
224 |
* Structure to record list of ZFS datasets exported to a zone. |
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225 |
*/ |
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226 |
typedef struct zone_dataset { |
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227 |
char *zd_dataset; |
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228 |
list_node_t zd_linkage; |
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229 |
} zone_dataset_t; |
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230 |
||
0 | 231 |
typedef struct zone { |
232 |
/* |
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233 |
* zone_name is never modified once set. |
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234 |
*/ |
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235 |
char *zone_name; /* zone's configuration name */ |
|
236 |
/* |
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237 |
* zone_nodename and zone_domain are never freed once allocated. |
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238 |
*/ |
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239 |
char *zone_nodename; /* utsname.nodename equivalent */ |
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char *zone_domain; /* srpc_domain equivalent */ |
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241 |
/* |
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242 |
* zone_lock protects the following fields of a zone_t: |
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243 |
* zone_ref |
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* zone_cred_ref |
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245 |
* zone_ntasks |
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246 |
* zone_flags |
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247 |
* zone_zsd |
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248 |
*/ |
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249 |
kmutex_t zone_lock; |
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250 |
/* |
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251 |
* zone_linkage is the zone's linkage into the active or |
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252 |
* death-row list. The field is protected by zonehash_lock. |
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253 |
*/ |
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254 |
list_node_t zone_linkage; |
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255 |
zoneid_t zone_id; /* ID of zone */ |
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256 |
uint_t zone_ref; /* count of zone_hold()s on zone */ |
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257 |
uint_t zone_cred_ref; /* count of zone_hold_cred()s on zone */ |
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258 |
/* |
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259 |
* zone_rootvp and zone_rootpath can never be modified once set. |
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260 |
*/ |
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261 |
struct vnode *zone_rootvp; /* zone's root vnode */ |
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262 |
char *zone_rootpath; /* Path to zone's root + '/' */ |
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ushort_t zone_flags; /* misc flags */ |
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264 |
zone_status_t zone_status; /* protected by zone_status_lock */ |
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265 |
uint_t zone_ntasks; /* number of tasks executing in zone */ |
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266 |
kmutex_t zone_nlwps_lock; /* protects zone_nlwps, and *_nlwps */ |
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267 |
/* counters in projects and tasks */ |
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268 |
/* that are within the zone */ |
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269 |
rctl_qty_t zone_nlwps; /* number of lwps in zone */ |
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270 |
rctl_qty_t zone_nlwps_ctl; /* protected by zone_rctls->rcs_lock */ |
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271 |
||
272 |
uint_t zone_rootpathlen; /* strlen(zone_rootpath) + 1 */ |
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273 |
uint32_t zone_shares; /* FSS shares allocated to zone */ |
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274 |
rctl_set_t *zone_rctls; /* zone-wide (zone.*) rctls */ |
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275 |
list_t zone_zsd; /* list of Zone-Specific Data values */ |
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276 |
kcondvar_t zone_cv; /* used to signal state changes */ |
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struct proc *zone_zsched; /* Dummy kernel "zsched" process */ |
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278 |
pid_t zone_proc_initpid; /* pid of "init" for this zone */ |
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279 |
int zone_boot_err; /* for zone_boot() if boot fails */ |
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280 |
char *zone_bootargs; /* arguments passed via zone_boot() */ |
|
281 |
/* |
|
282 |
* zone_kthreads is protected by zone_status_lock. |
|
283 |
*/ |
|
284 |
kthread_t *zone_kthreads; /* kernel threads in zone */ |
|
285 |
struct priv_set *zone_privset; /* limit set for zone */ |
|
286 |
/* |
|
287 |
* zone_vfslist is protected by vfs_list_lock(). |
|
288 |
*/ |
|
289 |
struct vfs *zone_vfslist; /* list of FS's mounted in zone */ |
|
290 |
uint64_t zone_uniqid; /* unique zone generation number */ |
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291 |
struct cred *zone_kcred; /* kcred-like, zone-limited cred */ |
|
292 |
/* |
|
293 |
* zone_pool is protected by pool_lock(). |
|
294 |
*/ |
|
295 |
struct pool *zone_pool; /* pool the zone is bound to */ |
|
296 |
hrtime_t zone_pool_mod; /* last pool bind modification time */ |
|
297 |
/* zone_psetid is protected by cpu_lock */ |
|
298 |
psetid_t zone_psetid; /* pset the zone is bound to */ |
|
299 |
/* |
|
300 |
* The following two can be read without holding any locks. They are |
|
301 |
* updated under cpu_lock. |
|
302 |
*/ |
|
303 |
int zone_ncpus; /* zone's idea of ncpus */ |
|
304 |
int zone_ncpus_online; /* zone's idea of ncpus_online */ |
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789 | 305 |
/* |
306 |
* List of ZFS datasets exported to this zone. |
|
307 |
*/ |
|
308 |
list_t zone_datasets; /* list of datasets */ |
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1676 | 309 |
|
310 |
ts_label_t *zone_slabel; |
|
311 |
int zone_match; |
|
312 |
tsol_mlp_list_t zone_mlps; /* MLPs on zone-private addresses */ |
|
0 | 313 |
} zone_t; |
314 |
||
315 |
/* |
|
316 |
* Special value of zone_psetid to indicate that pools are disabled. |
|
317 |
*/ |
|
318 |
#define ZONE_PS_INVAL PS_MYID |
|
319 |
||
320 |
extern zone_t zone0; |
|
321 |
extern zone_t *global_zone; |
|
322 |
extern uint_t maxzones; |
|
323 |
extern rctl_hndl_t rc_zone_nlwps; |
|
324 |
||
325 |
extern const char * const zone_initname; |
|
326 |
||
789 | 327 |
extern long zone(int, void *, void *, void *, void *); |
0 | 328 |
extern void zone_zsd_init(void); |
329 |
extern void zone_init(void); |
|
330 |
extern void zone_hold(zone_t *); |
|
331 |
extern void zone_rele(zone_t *); |
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332 |
extern void zone_cred_hold(zone_t *); |
|
333 |
extern void zone_cred_rele(zone_t *); |
|
334 |
extern void zone_task_hold(zone_t *); |
|
335 |
extern void zone_task_rele(zone_t *); |
|
336 |
extern zone_t *zone_find_by_id(zoneid_t); |
|
1676 | 337 |
extern zone_t *zone_find_by_label(const ts_label_t *); |
0 | 338 |
extern zone_t *zone_find_by_name(char *); |
1769
338500d67d4f
6404654 zoneadm mount command fails on labeled systems
carlsonj
parents:
1676
diff
changeset
|
339 |
extern zone_t *zone_find_by_any_path(const char *, boolean_t); |
0 | 340 |
extern zone_t *zone_find_by_path(const char *); |
341 |
extern zoneid_t getzoneid(void); |
|
342 |
||
343 |
/* |
|
344 |
* Zone-specific data (ZSD) APIs |
|
345 |
*/ |
|
346 |
/* |
|
347 |
* The following is what code should be initializing its zone_key_t to if it |
|
348 |
* calls zone_getspecific() without necessarily knowing that zone_key_create() |
|
349 |
* has been called on the key. |
|
350 |
*/ |
|
351 |
#define ZONE_KEY_UNINITIALIZED 0 |
|
352 |
||
353 |
typedef uint_t zone_key_t; |
|
354 |
||
355 |
extern void zone_key_create(zone_key_t *, void *(*)(zoneid_t), |
|
356 |
void (*)(zoneid_t, void *), void (*)(zoneid_t, void *)); |
|
357 |
extern int zone_key_delete(zone_key_t); |
|
358 |
extern void *zone_getspecific(zone_key_t, zone_t *); |
|
359 |
extern int zone_setspecific(zone_key_t, zone_t *, const void *); |
|
360 |
||
361 |
/* |
|
362 |
* The definition of a zsd_entry is truly private to zone.c and is only |
|
363 |
* placed here so it can be shared with mdb. |
|
364 |
*/ |
|
365 |
struct zsd_entry { |
|
366 |
zone_key_t zsd_key; /* Key used to lookup value */ |
|
367 |
void *zsd_data; /* Caller-managed value */ |
|
368 |
/* |
|
369 |
* Callbacks to be executed when a zone is created, shutdown, and |
|
370 |
* destroyed, respectively. |
|
371 |
*/ |
|
372 |
void *(*zsd_create)(zoneid_t); |
|
373 |
void (*zsd_shutdown)(zoneid_t, void *); |
|
374 |
void (*zsd_destroy)(zoneid_t, void *); |
|
375 |
list_node_t zsd_linkage; |
|
376 |
}; |
|
377 |
||
378 |
/* |
|
379 |
* Macros to help with zone visibility restrictions. |
|
380 |
*/ |
|
381 |
||
382 |
/* |
|
383 |
* Is process in the global zone? |
|
384 |
*/ |
|
385 |
#define INGLOBALZONE(p) \ |
|
386 |
((p)->p_zone == global_zone) |
|
387 |
||
388 |
/* |
|
389 |
* Can process view objects in given zone? |
|
390 |
*/ |
|
391 |
#define HASZONEACCESS(p, zoneid) \ |
|
392 |
((p)->p_zone->zone_id == (zoneid) || INGLOBALZONE(p)) |
|
393 |
||
394 |
/* |
|
395 |
* Convenience macro to see if a resolved path is visible from within a |
|
396 |
* given zone. |
|
397 |
* |
|
398 |
* The basic idea is that the first (zone_rootpathlen - 1) bytes of the |
|
399 |
* two strings must be equal. Since the rootpathlen has a trailing '/', |
|
400 |
* we want to skip everything in the path up to (but not including) the |
|
401 |
* trailing '/'. |
|
402 |
*/ |
|
403 |
#define ZONE_PATH_VISIBLE(path, zone) \ |
|
404 |
(strncmp((path), (zone)->zone_rootpath, \ |
|
405 |
(zone)->zone_rootpathlen - 1) == 0) |
|
406 |
||
407 |
/* |
|
408 |
* Convenience macro to go from the global view of a path to that seen |
|
409 |
* from within said zone. It is the responsibility of the caller to |
|
410 |
* ensure that the path is a resolved one (ie, no '..'s or '.'s), and is |
|
411 |
* in fact visible from within the zone. |
|
412 |
*/ |
|
413 |
#define ZONE_PATH_TRANSLATE(path, zone) \ |
|
414 |
(ASSERT(ZONE_PATH_VISIBLE(path, zone)), \ |
|
415 |
(path) + (zone)->zone_rootpathlen - 2) |
|
416 |
||
417 |
/* |
|
418 |
* Special processes visible in all zones. |
|
419 |
*/ |
|
420 |
#define ZONE_SPECIALPID(x) ((x) == 0 || (x) == 1) |
|
421 |
||
422 |
/* |
|
423 |
* Zone-safe version of thread_create() to be used when the caller wants to |
|
424 |
* create a kernel thread to run within the current zone's context. |
|
425 |
*/ |
|
426 |
extern kthread_t *zthread_create(caddr_t, size_t, void (*)(), void *, size_t, |
|
427 |
pri_t); |
|
428 |
extern void zthread_exit(void); |
|
429 |
||
430 |
/* |
|
431 |
* Functions for an external observer to register interest in a zone's status |
|
432 |
* change. Observers will be woken up when the zone status equals the status |
|
433 |
* argument passed in (in the case of zone_status_timedwait, the function may |
|
434 |
* also return because of a timeout; zone_status_wait_sig may return early due |
|
435 |
* to a signal being delivered; zone_status_timedwait_sig may return for any of |
|
436 |
* the above reasons). |
|
437 |
* |
|
438 |
* Otherwise these behave identically to cv_timedwait(), cv_wait(), and |
|
439 |
* cv_wait_sig() respectively. |
|
440 |
*/ |
|
441 |
extern clock_t zone_status_timedwait(zone_t *, clock_t, zone_status_t); |
|
442 |
extern clock_t zone_status_timedwait_sig(zone_t *, clock_t, zone_status_t); |
|
443 |
extern void zone_status_wait(zone_t *, zone_status_t); |
|
444 |
extern int zone_status_wait_sig(zone_t *, zone_status_t); |
|
445 |
||
446 |
/* |
|
447 |
* Get the status of the zone (at the time it was called). The state may |
|
448 |
* have progressed by the time it is returned. |
|
449 |
*/ |
|
450 |
extern zone_status_t zone_status_get(zone_t *); |
|
451 |
||
452 |
/* |
|
453 |
* Get the "kcred" credentials corresponding to the given zone. |
|
454 |
*/ |
|
455 |
extern struct cred *zone_get_kcred(zoneid_t); |
|
456 |
||
457 |
/* |
|
458 |
* Get/set the pool the zone is currently bound to. |
|
459 |
*/ |
|
460 |
extern struct pool *zone_pool_get(zone_t *); |
|
461 |
extern void zone_pool_set(zone_t *, struct pool *); |
|
462 |
||
463 |
/* |
|
464 |
* Get/set the pset the zone is currently using. |
|
465 |
*/ |
|
466 |
extern psetid_t zone_pset_get(zone_t *); |
|
467 |
extern void zone_pset_set(zone_t *, psetid_t); |
|
468 |
||
469 |
/* |
|
470 |
* Get the number of cpus/online-cpus visible from the given zone. |
|
471 |
*/ |
|
472 |
extern int zone_ncpus_get(zone_t *); |
|
473 |
extern int zone_ncpus_online_get(zone_t *); |
|
474 |
||
475 |
/* |
|
789 | 476 |
* Returns true if the named pool/dataset is visible in the current zone. |
477 |
*/ |
|
478 |
extern int zone_dataset_visible(const char *, int *); |
|
479 |
||
480 |
/* |
|
0 | 481 |
* zone version of uadmin() |
482 |
*/ |
|
483 |
extern int zone_uadmin(int, int, struct cred *); |
|
484 |
extern void zone_shutdown_global(void); |
|
485 |
||
486 |
extern void mount_in_progress(void); |
|
487 |
extern void mount_completed(void); |
|
488 |
||
489 |
extern int zone_walk(int (*)(zone_t *, void *), void *); |
|
490 |
||
491 |
#endif /* _KERNEL */ |
|
492 |
||
493 |
#ifdef __cplusplus |
|
494 |
} |
|
495 |
#endif |
|
496 |
||
497 |
#endif /* _SYS_ZONE_H */ |