xref: /illumos-gate/usr/src/head/libzonecfg.h (revision cee386789b57d2d748569d63b2d445720482770e)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _LIBZONECFG_H
28 #define	_LIBZONECFG_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 /*
33  * Zone configuration header file.
34  */
35 
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39 
40 /* sys/socket.h is required by net/if.h, which has a constant needed here */
41 #include <sys/param.h>
42 #include <sys/fstyp.h>
43 #include <sys/mount.h>
44 #include <priv.h>
45 #include <netinet/in.h>
46 #include <sys/socket.h>
47 #include <net/if.h>
48 #include <stdio.h>
49 #include <rctl.h>
50 #include <zone.h>
51 #include <libbrand.h>
52 #include <sys/uuid.h>
53 
54 #define	ZONE_ID_UNDEFINED	-1
55 
56 #define	Z_OK			0
57 #define	Z_EMPTY_DOCUMENT	1	/* XML doc root element is null */
58 #define	Z_WRONG_DOC_TYPE	2	/* top-level XML doc element != zone */
59 #define	Z_BAD_PROPERTY		3	/* libxml-level property problem */
60 #define	Z_TEMP_FILE		4	/* problem creating temporary file */
61 #define	Z_SAVING_FILE		5	/* libxml error saving or validating */
62 #define	Z_NO_ENTRY		6	/* no such entry */
63 #define	Z_BOGUS_ZONE_NAME	7	/* illegal zone name */
64 #define	Z_REQD_RESOURCE_MISSING	8	/* required resource missing */
65 #define	Z_REQD_PROPERTY_MISSING	9	/* required property missing */
66 #define	Z_BAD_HANDLE		10	/* bad document handle */
67 #define	Z_NOMEM			11	/* out of memory (like ENOMEM) */
68 #define	Z_INVAL			12	/* invalid argument (like EINVAL) */
69 #define	Z_ACCES			13	/* permission denied (like EACCES) */
70 #define	Z_TOO_BIG		14	/* string won't fit in char array */
71 #define	Z_MISC_FS		15	/* miscellaneous file-system error */
72 #define	Z_NO_ZONE		16	/* no such zone */
73 #define	Z_NO_RESOURCE_TYPE	17	/* no/wrong resource type */
74 #define	Z_NO_RESOURCE_ID	18	/* no/wrong resource id */
75 #define	Z_NO_PROPERTY_TYPE	19	/* no/wrong property type */
76 #define	Z_NO_PROPERTY_ID	20	/* no/wrong property id */
77 #define	Z_BAD_ZONE_STATE	21	/* zone state invalid for given task */
78 #define	Z_INVALID_DOCUMENT	22	/* libxml can't validate against DTD */
79 #define	Z_NAME_IN_USE		23	/* zone name already in use (rename) */
80 #define	Z_NO_SUCH_ID		24	/* delete_index: no old ID */
81 #define	Z_UPDATING_INDEX	25	/* add/modify/delete_index problem */
82 #define	Z_LOCKING_FILE		26	/* problem locking index file */
83 #define	Z_UNLOCKING_FILE	27	/* problem unlocking index file */
84 #define	Z_SYSTEM		28	/* consult errno instead */
85 #define	Z_INSUFFICIENT_SPEC	29	/* resource insufficiently specified */
86 #define	Z_RESOLVED_PATH		34	/* resolved path mismatch */
87 #define	Z_IPV6_ADDR_PREFIX_LEN	35	/* IPv6 address prefix length needed */
88 #define	Z_BOGUS_ADDRESS		36	/* not IPv[4|6] address or host name */
89 #define	Z_PRIV_PROHIBITED	37	/* specified privilege is prohibited */
90 #define	Z_PRIV_REQUIRED		38	/* required privilege is missing */
91 #define	Z_PRIV_UNKNOWN		39	/* specified privilege is unknown */
92 #define	Z_BRAND_ERROR		40	/* brand-specific error */
93 
94 /*
95  * Warning: these are shared with the admin/install consolidation.
96  * Do not insert states between any of the currently defined states,
97  * and any new states must be evaluated for impact on range comparisons.
98  */
99 #define	ZONE_STATE_CONFIGURED		0
100 #define	ZONE_STATE_INCOMPLETE		1
101 #define	ZONE_STATE_INSTALLED		2
102 #define	ZONE_STATE_READY		3
103 #define	ZONE_STATE_RUNNING		4
104 #define	ZONE_STATE_SHUTTING_DOWN	5
105 #define	ZONE_STATE_DOWN			6
106 #define	ZONE_STATE_MOUNTED		7
107 
108 #define	ZONE_STATE_MAXSTRLEN	14
109 
110 #define	LIBZONECFG_PATH		"libzonecfg.so.1"
111 
112 #define	ZONE_CONFIG_ROOT	"/etc/zones"
113 #define	ZONE_INDEX_FILE		ZONE_CONFIG_ROOT "/index"
114 
115 /* Owner, group, and mode (defined by packaging) for the config directory */
116 #define	ZONE_CONFIG_UID		0		/* root */
117 #define	ZONE_CONFIG_GID		3		/* sys */
118 #define	ZONE_CONFIG_MODE	0755
119 
120 /* Owner, group, and mode (defined by packaging) for the index file */
121 #define	ZONE_INDEX_UID		0		/* root */
122 #define	ZONE_INDEX_GID		3		/* sys */
123 #define	ZONE_INDEX_MODE		0644
124 
125 /* The maximum length of the VERSION string in the pkginfo(4) file. */
126 #define	ZONE_PKG_VERSMAX	256
127 
128 /*
129  * Bit flag definitions for passing into libzonecfg functions.
130  */
131 #define	ZONE_DRY_RUN		0x01
132 
133 /*
134  * The integer field expresses the current values on a get.
135  * On a put, it represents the new values if >= 0 or "don't change" if < 0.
136  */
137 struct zoneent {
138 	char	zone_name[ZONENAME_MAX];	/* name of the zone */
139 	int	zone_state;	/* configured | incomplete | installed */
140 	char	zone_path[MAXPATHLEN];		/* path to zone storage */
141 	uuid_t	zone_uuid;			/* unique ID for zone */
142 	char	zone_newname[ZONENAME_MAX];	/* for doing renames */
143 };
144 
145 typedef struct zone_dochandle *zone_dochandle_t;	/* opaque handle */
146 
147 typedef uint_t zone_state_t;
148 
149 typedef struct zone_fsopt {
150 	struct zone_fsopt *zone_fsopt_next;
151 	char		   zone_fsopt_opt[MAX_MNTOPT_STR];
152 } zone_fsopt_t;
153 
154 struct zone_fstab {
155 	char		zone_fs_special[MAXPATHLEN]; 	/* special file */
156 	char		zone_fs_dir[MAXPATHLEN];	/* mount point */
157 	char		zone_fs_type[FSTYPSZ];		/* e.g. ufs */
158 	zone_fsopt_t   *zone_fs_options;		/* mount options */
159 	char		zone_fs_raw[MAXPATHLEN];	/* device to fsck */
160 };
161 
162 struct zone_nwiftab {
163 	char	zone_nwif_address[INET6_ADDRSTRLEN];
164 	char	zone_nwif_physical[LIFNAMSIZ];
165 };
166 
167 struct zone_devtab {
168 	char	zone_dev_match[MAXPATHLEN];
169 };
170 
171 struct zone_rctlvaltab {
172 	char	zone_rctlval_priv[MAXNAMELEN];
173 	char	zone_rctlval_limit[MAXNAMELEN];
174 	char	zone_rctlval_action[MAXNAMELEN];
175 	struct zone_rctlvaltab *zone_rctlval_next;
176 };
177 
178 struct zone_rctltab {
179 	char	zone_rctl_name[MAXNAMELEN];
180 	struct zone_rctlvaltab *zone_rctl_valptr;
181 };
182 
183 struct zone_attrtab {
184 	char	zone_attr_name[MAXNAMELEN];
185 	char	zone_attr_type[MAXNAMELEN];
186 	char	zone_attr_value[2 * BUFSIZ];
187 };
188 
189 struct zone_dstab {
190 	char	zone_dataset_name[MAXNAMELEN];
191 };
192 
193 struct zone_pkgtab {
194 	char	zone_pkg_name[MAXNAMELEN];
195 	char	zone_pkg_version[ZONE_PKG_VERSMAX];
196 };
197 
198 struct zone_patchtab {
199 	char	zone_patch_id[MAXNAMELEN];
200 };
201 
202 struct zone_devpermtab {
203 	char	zone_devperm_name[MAXPATHLEN];
204 	uid_t	zone_devperm_uid;
205 	gid_t	zone_devperm_gid;
206 	mode_t	zone_devperm_mode;
207 	char	*zone_devperm_acl;
208 };
209 
210 /*
211  * Basic configuration management routines.
212  */
213 extern	zone_dochandle_t	zonecfg_init_handle(void);
214 extern	int	zonecfg_get_handle(const char *, zone_dochandle_t);
215 extern	int	zonecfg_get_snapshot_handle(const char *, zone_dochandle_t);
216 extern	int	zonecfg_get_template_handle(const char *, const char *,
217     zone_dochandle_t);
218 extern	int	zonecfg_get_xml_handle(const char *, zone_dochandle_t);
219 extern	int	zonecfg_check_handle(zone_dochandle_t);
220 extern	void	zonecfg_fini_handle(zone_dochandle_t);
221 extern	int	zonecfg_destroy(const char *, boolean_t);
222 extern	int	zonecfg_destroy_snapshot(const char *);
223 extern	int	zonecfg_save(zone_dochandle_t);
224 extern	int	zonecfg_create_snapshot(const char *);
225 extern	char	*zonecfg_strerror(int);
226 extern	int	zonecfg_access(const char *, int);
227 extern	void	zonecfg_set_root(const char *);
228 extern	const char *zonecfg_get_root(void);
229 extern	boolean_t zonecfg_in_alt_root(void);
230 
231 /*
232  * Zone name, path to zone directory, autoboot setting, pool and boot
233  * arguments.
234  */
235 extern	int	zonecfg_validate_zonename(const char *);
236 extern	int	zonecfg_get_name(zone_dochandle_t, char *, size_t);
237 extern	int	zonecfg_set_name(zone_dochandle_t, char *);
238 extern	int	zonecfg_get_zonepath(zone_dochandle_t, char *, size_t);
239 extern	int	zonecfg_set_zonepath(zone_dochandle_t, char *);
240 extern	int	zonecfg_get_autoboot(zone_dochandle_t, boolean_t *);
241 extern	int	zonecfg_set_autoboot(zone_dochandle_t, boolean_t);
242 extern	int	zonecfg_get_pool(zone_dochandle_t, char *, size_t);
243 extern	int	zonecfg_set_pool(zone_dochandle_t, char *);
244 extern	int	zonecfg_get_bootargs(zone_dochandle_t, char *, size_t);
245 extern	int	zonecfg_set_bootargs(zone_dochandle_t, char *);
246 
247 /*
248  * Set/retrieve the brand for the zone
249  */
250 extern	int	zonecfg_get_brand(zone_dochandle_t, char *, size_t);
251 extern	int	zonecfg_set_brand(zone_dochandle_t, char *);
252 
253 /*
254  * Filesystem configuration.
255  */
256 extern	int	zonecfg_add_filesystem(zone_dochandle_t, struct zone_fstab *);
257 extern	int	zonecfg_delete_filesystem(zone_dochandle_t,
258     struct zone_fstab *);
259 extern	int	zonecfg_modify_filesystem(zone_dochandle_t,
260     struct zone_fstab *, struct zone_fstab *);
261 extern	int	zonecfg_lookup_filesystem(zone_dochandle_t,
262     struct zone_fstab *);
263 extern	int	zonecfg_add_ipd(zone_dochandle_t, struct zone_fstab *);
264 extern	int	zonecfg_delete_ipd(zone_dochandle_t, struct zone_fstab *);
265 extern	int	zonecfg_modify_ipd(zone_dochandle_t,
266     struct zone_fstab *, struct zone_fstab *);
267 extern	int	zonecfg_lookup_ipd(zone_dochandle_t, struct zone_fstab *);
268 extern	int	zonecfg_add_fs_option(struct zone_fstab *, char *);
269 extern	int	zonecfg_remove_fs_option(struct zone_fstab *, char *);
270 extern	void	zonecfg_free_fs_option_list(zone_fsopt_t *);
271 extern	int 	zonecfg_find_mounts(char *, int(*)(const char *, void *),
272     void *);
273 
274 /*
275  * Network interface configuration.
276  */
277 extern	int	zonecfg_add_nwif(zone_dochandle_t, struct zone_nwiftab *);
278 extern	int	zonecfg_delete_nwif(zone_dochandle_t, struct zone_nwiftab *);
279 extern	int	zonecfg_modify_nwif(zone_dochandle_t, struct zone_nwiftab *,
280     struct zone_nwiftab *);
281 extern	int	zonecfg_lookup_nwif(zone_dochandle_t, struct zone_nwiftab *);
282 
283 /*
284  * Device configuration and rule matching.
285  */
286 extern	int	zonecfg_add_dev(zone_dochandle_t, struct zone_devtab *);
287 extern	int	zonecfg_delete_dev(zone_dochandle_t, struct zone_devtab *);
288 extern	int	zonecfg_modify_dev(zone_dochandle_t, struct zone_devtab *,
289     struct zone_devtab *);
290 extern	int	zonecfg_lookup_dev(zone_dochandle_t, struct zone_devtab *);
291 
292 /*
293  * Resource control configuration.
294  */
295 extern	int	zonecfg_add_rctl(zone_dochandle_t, struct zone_rctltab *);
296 extern	int	zonecfg_delete_rctl(zone_dochandle_t, struct zone_rctltab *);
297 extern	int	zonecfg_modify_rctl(zone_dochandle_t, struct zone_rctltab *,
298     struct zone_rctltab *);
299 extern	int	zonecfg_lookup_rctl(zone_dochandle_t, struct zone_rctltab *);
300 extern	int	zonecfg_add_rctl_value(struct zone_rctltab *,
301     struct zone_rctlvaltab *);
302 extern	int	zonecfg_remove_rctl_value(struct zone_rctltab *,
303     struct zone_rctlvaltab *);
304 extern	void	zonecfg_free_rctl_value_list(struct zone_rctlvaltab *);
305 
306 /*
307  * Generic attribute configuration and type/value extraction.
308  */
309 extern	int	zonecfg_add_attr(zone_dochandle_t, struct zone_attrtab *);
310 extern	int	zonecfg_delete_attr(zone_dochandle_t, struct zone_attrtab *);
311 extern	int	zonecfg_modify_attr(zone_dochandle_t, struct zone_attrtab *,
312     struct zone_attrtab *);
313 extern	int	zonecfg_lookup_attr(zone_dochandle_t, struct zone_attrtab *);
314 extern	int	zonecfg_get_attr_boolean(const struct zone_attrtab *,
315     boolean_t *);
316 extern	int	zonecfg_get_attr_int(const struct zone_attrtab *, int64_t *);
317 extern	int	zonecfg_get_attr_string(const struct zone_attrtab *, char *,
318     size_t);
319 extern	int	zonecfg_get_attr_uint(const struct zone_attrtab *, uint64_t *);
320 
321 /*
322  * ZFS configuration.
323  */
324 extern	int	zonecfg_add_ds(zone_dochandle_t, struct zone_dstab *);
325 extern	int	zonecfg_delete_ds(zone_dochandle_t, struct zone_dstab *);
326 extern	int	zonecfg_modify_ds(zone_dochandle_t, struct zone_dstab *,
327     struct zone_dstab *);
328 extern	int	zonecfg_lookup_ds(zone_dochandle_t, struct zone_dstab *);
329 
330 /*
331  * attach/detach support.
332  */
333 extern	int	zonecfg_get_attach_handle(const char *, const char *,
334     boolean_t, zone_dochandle_t);
335 extern	int	zonecfg_attach_manifest(int, zone_dochandle_t,
336     zone_dochandle_t);
337 extern	int	zonecfg_detach_save(zone_dochandle_t, uint_t);
338 extern	int	zonecfg_get_detach_info(zone_dochandle_t, boolean_t);
339 extern	boolean_t zonecfg_detached(const char *);
340 extern	void	zonecfg_rm_detached(zone_dochandle_t, boolean_t forced);
341 extern	int	zonecfg_devwalk(zone_dochandle_t handle,
342     int (*cb)(const char *, uid_t, gid_t, mode_t, const char *, void *),
343     void *data);
344 extern	int	zonecfg_devperms_apply(zone_dochandle_t, const char *,
345     uid_t, gid_t, mode_t, const char *);
346 
347 /*
348  * External zone verification support.
349  */
350 extern	int	zonecfg_verify_save(zone_dochandle_t, char *);
351 
352 /*
353  * '*ent' iterator routines.
354  */
355 extern	int	zonecfg_setfsent(zone_dochandle_t);
356 extern	int	zonecfg_getfsent(zone_dochandle_t, struct zone_fstab *);
357 extern	int	zonecfg_endfsent(zone_dochandle_t);
358 extern	int	zonecfg_setipdent(zone_dochandle_t);
359 extern	int	zonecfg_getipdent(zone_dochandle_t, struct zone_fstab *);
360 extern	int	zonecfg_endipdent(zone_dochandle_t);
361 extern	int	zonecfg_setnwifent(zone_dochandle_t);
362 extern	int	zonecfg_getnwifent(zone_dochandle_t, struct zone_nwiftab *);
363 extern	int	zonecfg_endnwifent(zone_dochandle_t);
364 extern	int	zonecfg_setdevent(zone_dochandle_t);
365 extern	int	zonecfg_getdevent(zone_dochandle_t, struct zone_devtab *);
366 extern	int	zonecfg_enddevent(zone_dochandle_t);
367 extern	int	zonecfg_setattrent(zone_dochandle_t);
368 extern	int	zonecfg_getattrent(zone_dochandle_t, struct zone_attrtab *);
369 extern	int	zonecfg_endattrent(zone_dochandle_t);
370 extern	int	zonecfg_setrctlent(zone_dochandle_t);
371 extern	int	zonecfg_getrctlent(zone_dochandle_t, struct zone_rctltab *);
372 extern	int	zonecfg_endrctlent(zone_dochandle_t);
373 extern	int	zonecfg_setdsent(zone_dochandle_t);
374 extern	int	zonecfg_getdsent(zone_dochandle_t, struct zone_dstab *);
375 extern	int	zonecfg_enddsent(zone_dochandle_t);
376 extern	int	zonecfg_setpkgent(zone_dochandle_t);
377 extern	int	zonecfg_getpkgent(zone_dochandle_t, struct zone_pkgtab *);
378 extern	int	zonecfg_endpkgent(zone_dochandle_t);
379 extern	int	zonecfg_setpatchent(zone_dochandle_t);
380 extern	int	zonecfg_getpatchent(zone_dochandle_t, struct zone_patchtab *);
381 extern	int	zonecfg_endpatchent(zone_dochandle_t);
382 extern	int	zonecfg_setdevperment(zone_dochandle_t);
383 extern	int	zonecfg_getdevperment(zone_dochandle_t,
384     struct zone_devpermtab *);
385 extern	int	zonecfg_enddevperment(zone_dochandle_t);
386 
387 /*
388  * Privilege-related functions.
389  */
390 extern	int	zonecfg_default_privset(priv_set_t *);
391 extern	int	zonecfg_get_privset(zone_dochandle_t, priv_set_t *,
392     char **);
393 extern	int	zonecfg_get_limitpriv(zone_dochandle_t, char **);
394 extern	int	zonecfg_set_limitpriv(zone_dochandle_t, char *);
395 
396 /*
397  * Higher-level routines.
398  */
399 extern  int	zone_get_brand(char *, char *, size_t);
400 extern	int	zone_get_rootpath(char *, char *, size_t);
401 extern	int	zone_get_devroot(char *, char *, size_t);
402 extern	int	zone_get_zonepath(char *, char *, size_t);
403 extern	int	zone_get_state(char *, zone_state_t *);
404 extern	int	zone_set_state(char *, zone_state_t);
405 extern	char	*zone_state_str(zone_state_t);
406 extern	int	zonecfg_get_name_by_uuid(const uuid_t, char *, size_t);
407 extern	int	zonecfg_get_uuid(const char *, uuid_t);
408 
409 /*
410  * Iterator for configured zones.
411  */
412 extern FILE		*setzoneent(void);
413 extern char		*getzoneent(FILE *);
414 extern struct zoneent	*getzoneent_private(FILE *);
415 extern void		endzoneent(FILE *);
416 
417 /*
418  * File-system-related convenience functions.
419  */
420 extern boolean_t zonecfg_valid_fs_type(const char *);
421 
422 /*
423  * Network-related convenience functions.
424  */
425 extern boolean_t zonecfg_same_net_address(char *, char *);
426 extern int zonecfg_valid_net_address(char *, struct lifreq *);
427 
428 /*
429  * Rctl-related common functions.
430  */
431 extern boolean_t zonecfg_is_rctl(const char *);
432 extern boolean_t zonecfg_valid_rctlname(const char *);
433 extern boolean_t zonecfg_valid_rctlblk(const rctlblk_t *);
434 extern boolean_t zonecfg_valid_rctl(const char *, const rctlblk_t *);
435 extern int zonecfg_construct_rctlblk(const struct zone_rctlvaltab *,
436     rctlblk_t *);
437 
438 /*
439  * Live Upgrade support functions.  Shared between ON and install gate.
440  */
441 extern FILE *zonecfg_open_scratch(const char *, boolean_t);
442 extern int zonecfg_lock_scratch(FILE *);
443 extern void zonecfg_close_scratch(FILE *);
444 extern int zonecfg_get_scratch(FILE *, char *, size_t, char *, size_t, char *,
445     size_t);
446 extern int zonecfg_find_scratch(FILE *, const char *, const char *, char *,
447     size_t);
448 extern int zonecfg_reverse_scratch(FILE *, const char *, char *, size_t,
449     char *, size_t);
450 extern int zonecfg_add_scratch(FILE *, const char *, const char *,
451     const char *);
452 extern int zonecfg_delete_scratch(FILE *, const char *);
453 extern boolean_t zonecfg_is_scratch(const char *);
454 
455 #ifdef __cplusplus
456 }
457 #endif
458 
459 #endif	/* _LIBZONECFG_H */
460