xref: /illumos-gate/usr/src/head/libzonecfg.h (revision 2caf0dcd2abc26b477e317999994020212790d38)
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  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _LIBZONECFG_H
27 #define	_LIBZONECFG_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 /*
32  * Zone configuration header file.
33  */
34 
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38 
39 /* sys/socket.h is required by net/if.h, which has a constant needed here */
40 #include <sys/param.h>
41 #include <sys/fstyp.h>
42 #include <sys/mount.h>
43 #include <priv.h>
44 #include <netinet/in.h>
45 #include <sys/socket.h>
46 #include <net/if.h>
47 #include <stdio.h>
48 #include <rctl.h>
49 #include <zone.h>
50 #include <sys/uuid.h>
51 
52 #define	ZONE_ID_UNDEFINED	-1
53 
54 #define	Z_OK			0
55 #define	Z_EMPTY_DOCUMENT	1	/* XML doc root element is null */
56 #define	Z_WRONG_DOC_TYPE	2	/* top-level XML doc element != zone */
57 #define	Z_BAD_PROPERTY		3	/* libxml-level property problem */
58 #define	Z_TEMP_FILE		4	/* problem creating temporary file */
59 #define	Z_SAVING_FILE		5	/* libxml error saving or validating */
60 #define	Z_NO_ENTRY		6	/* no such entry */
61 #define	Z_BOGUS_ZONE_NAME	7	/* illegal zone name */
62 #define	Z_REQD_RESOURCE_MISSING	8	/* required resource missing */
63 #define	Z_REQD_PROPERTY_MISSING	9	/* required property missing */
64 #define	Z_BAD_HANDLE		10	/* bad document handle */
65 #define	Z_NOMEM			11	/* out of memory (like ENOMEM) */
66 #define	Z_INVAL			12	/* invalid argument (like EINVAL) */
67 #define	Z_ACCES			13	/* permission denied (like EACCES) */
68 #define	Z_TOO_BIG		14	/* string won't fit in char array */
69 #define	Z_MISC_FS		15	/* miscellaneous file-system error */
70 #define	Z_NO_ZONE		16	/* no such zone */
71 #define	Z_NO_RESOURCE_TYPE	17	/* no/wrong resource type */
72 #define	Z_NO_RESOURCE_ID	18	/* no/wrong resource id */
73 #define	Z_NO_PROPERTY_TYPE	19	/* no/wrong property type */
74 #define	Z_NO_PROPERTY_ID	20	/* no/wrong property id */
75 #define	Z_BAD_ZONE_STATE	21	/* zone state invalid for given task */
76 #define	Z_INVALID_DOCUMENT	22	/* libxml can't validate against DTD */
77 #define	Z_NAME_IN_USE		23	/* zone name already in use (rename) */
78 #define	Z_NO_SUCH_ID		24	/* delete_index: no old ID */
79 #define	Z_UPDATING_INDEX	25	/* add/modify/delete_index problem */
80 #define	Z_LOCKING_FILE		26	/* problem locking index file */
81 #define	Z_UNLOCKING_FILE	27	/* problem unlocking index file */
82 #define	Z_SYSTEM		28	/* consult errno instead */
83 #define	Z_INSUFFICIENT_SPEC	29	/* resource insufficiently specified */
84 #define	Z_RESOLVED_PATH		34	/* resolved path mismatch */
85 #define	Z_IPV6_ADDR_PREFIX_LEN	35	/* IPv6 address prefix length needed */
86 #define	Z_BOGUS_ADDRESS		36	/* not IPv[4|6] address or host name */
87 
88 /*
89  * Warning: these are shared with the admin/install consolidation.
90  * Do not insert states between any of the currently defined states,
91  * and any new states must be evaluated for impact on range comparisons.
92  */
93 #define	ZONE_STATE_CONFIGURED		0
94 #define	ZONE_STATE_INCOMPLETE		1
95 #define	ZONE_STATE_INSTALLED		2
96 #define	ZONE_STATE_READY		3
97 #define	ZONE_STATE_RUNNING		4
98 #define	ZONE_STATE_SHUTTING_DOWN	5
99 #define	ZONE_STATE_DOWN			6
100 #define	ZONE_STATE_MOUNTED		7
101 
102 #define	ZONE_STATE_MAXSTRLEN	14
103 
104 #define	LIBZONECFG_PATH		"libzonecfg.so.1"
105 
106 #define	ZONE_CONFIG_ROOT	"/etc/zones"
107 #define	ZONE_INDEX_FILE		ZONE_CONFIG_ROOT "/index"
108 
109 /* The maximum length of the VERSION string in the pkginfo(4) file. */
110 #define	ZONE_PKG_VERSMAX	256
111 
112 /*
113  * The integer field expresses the current values on a get.
114  * On a put, it represents the new values if >= 0 or "don't change" if < 0.
115  */
116 struct zoneent {
117 	char	zone_name[ZONENAME_MAX];	/* name of the zone */
118 	int	zone_state;	/* configured | incomplete | installed */
119 	char	zone_path[MAXPATHLEN];		/* path to zone storage */
120 	uuid_t	zone_uuid;			/* unique ID for zone */
121 	char	zone_newname[ZONENAME_MAX];	/* for doing renames */
122 };
123 
124 typedef struct zone_dochandle *zone_dochandle_t;	/* opaque handle */
125 
126 typedef uint_t zone_state_t;
127 
128 typedef struct zone_fsopt {
129 	struct zone_fsopt *zone_fsopt_next;
130 	char		   zone_fsopt_opt[MAX_MNTOPT_STR];
131 } zone_fsopt_t;
132 
133 struct zone_fstab {
134 	char		zone_fs_special[MAXPATHLEN]; 	/* special file */
135 	char		zone_fs_dir[MAXPATHLEN];	/* mount point */
136 	char		zone_fs_type[FSTYPSZ];		/* e.g. ufs */
137 	zone_fsopt_t   *zone_fs_options;		/* mount options */
138 	char		zone_fs_raw[MAXPATHLEN];	/* device to fsck */
139 };
140 
141 struct zone_nwiftab {
142 	char	zone_nwif_address[INET6_ADDRSTRLEN];
143 	char	zone_nwif_physical[LIFNAMSIZ];
144 };
145 
146 struct zone_devtab {
147 	char	zone_dev_match[MAXPATHLEN];
148 };
149 
150 struct zone_rctlvaltab {
151 	char	zone_rctlval_priv[MAXNAMELEN];
152 	char	zone_rctlval_limit[MAXNAMELEN];
153 	char	zone_rctlval_action[MAXNAMELEN];
154 	struct zone_rctlvaltab *zone_rctlval_next;
155 };
156 
157 struct zone_rctltab {
158 	char	zone_rctl_name[MAXNAMELEN];
159 	struct zone_rctlvaltab *zone_rctl_valptr;
160 };
161 
162 struct zone_attrtab {
163 	char	zone_attr_name[MAXNAMELEN];
164 	char	zone_attr_type[MAXNAMELEN];
165 	char	zone_attr_value[2 * BUFSIZ];
166 };
167 
168 struct zone_dstab {
169 	char	zone_dataset_name[MAXNAMELEN];
170 };
171 
172 struct zone_pkgtab {
173 	char	zone_pkg_name[MAXNAMELEN];
174 	char	zone_pkg_version[ZONE_PKG_VERSMAX];
175 };
176 
177 struct zone_patchtab {
178 	char	zone_patch_id[MAXNAMELEN];
179 };
180 
181 struct zone_devpermtab {
182 	char	zone_devperm_name[MAXPATHLEN];
183 	uid_t	zone_devperm_uid;
184 	gid_t	zone_devperm_gid;
185 	mode_t	zone_devperm_mode;
186 	char	*zone_devperm_acl;
187 };
188 
189 /*
190  * Basic configuration management routines.
191  */
192 extern	zone_dochandle_t	zonecfg_init_handle(void);
193 extern	int	zonecfg_get_handle(const char *, zone_dochandle_t);
194 extern	int	zonecfg_get_snapshot_handle(const char *, zone_dochandle_t);
195 extern	int	zonecfg_get_template_handle(const char *, const char *,
196     zone_dochandle_t);
197 extern	int	zonecfg_check_handle(zone_dochandle_t);
198 extern	void	zonecfg_fini_handle(zone_dochandle_t);
199 extern	int	zonecfg_destroy(const char *, boolean_t);
200 extern	int	zonecfg_destroy_snapshot(const char *);
201 extern	int	zonecfg_save(zone_dochandle_t);
202 extern	int	zonecfg_create_snapshot(const char *);
203 extern	char	*zonecfg_strerror(int);
204 extern	int	zonecfg_access(const char *, int);
205 extern	void	zonecfg_set_root(const char *);
206 extern	const char *zonecfg_get_root(void);
207 extern	boolean_t zonecfg_in_alt_root(void);
208 
209 /*
210  * Zone name, path to zone directory, autoboot setting and pool.
211  */
212 extern	int	zonecfg_validate_zonename(const char *);
213 extern	int	zonecfg_get_name(zone_dochandle_t, char *, size_t);
214 extern	int	zonecfg_set_name(zone_dochandle_t, char *);
215 extern	int	zonecfg_get_zonepath(zone_dochandle_t, char *, size_t);
216 extern	int	zonecfg_set_zonepath(zone_dochandle_t, char *);
217 extern	int	zonecfg_get_autoboot(zone_dochandle_t, boolean_t *);
218 extern	int	zonecfg_set_autoboot(zone_dochandle_t, boolean_t);
219 extern	int	zonecfg_get_pool(zone_dochandle_t, char *, size_t);
220 extern	int	zonecfg_set_pool(zone_dochandle_t, char *);
221 
222 /*
223  * Filesystem configuration.
224  */
225 extern	int	zonecfg_add_filesystem(zone_dochandle_t, struct zone_fstab *);
226 extern	int	zonecfg_delete_filesystem(zone_dochandle_t,
227     struct zone_fstab *);
228 extern	int	zonecfg_modify_filesystem(zone_dochandle_t,
229     struct zone_fstab *, struct zone_fstab *);
230 extern	int	zonecfg_lookup_filesystem(zone_dochandle_t,
231     struct zone_fstab *);
232 extern	int	zonecfg_add_ipd(zone_dochandle_t, struct zone_fstab *);
233 extern	int	zonecfg_delete_ipd(zone_dochandle_t, struct zone_fstab *);
234 extern	int	zonecfg_modify_ipd(zone_dochandle_t,
235     struct zone_fstab *, struct zone_fstab *);
236 extern	int	zonecfg_lookup_ipd(zone_dochandle_t, struct zone_fstab *);
237 extern	int	zonecfg_add_fs_option(struct zone_fstab *, char *);
238 extern	int	zonecfg_remove_fs_option(struct zone_fstab *, char *);
239 extern	void	zonecfg_free_fs_option_list(zone_fsopt_t *);
240 extern	int 	zonecfg_find_mounts(char *, int(*)(const char *, void *),
241     void *);
242 
243 /*
244  * Network interface configuration.
245  */
246 extern	int	zonecfg_add_nwif(zone_dochandle_t, struct zone_nwiftab *);
247 extern	int	zonecfg_delete_nwif(zone_dochandle_t, struct zone_nwiftab *);
248 extern	int	zonecfg_modify_nwif(zone_dochandle_t, struct zone_nwiftab *,
249     struct zone_nwiftab *);
250 extern	int	zonecfg_lookup_nwif(zone_dochandle_t, struct zone_nwiftab *);
251 
252 /*
253  * Device configuration and rule matching.
254  */
255 extern	int	zonecfg_add_dev(zone_dochandle_t, struct zone_devtab *);
256 extern	int	zonecfg_delete_dev(zone_dochandle_t, struct zone_devtab *);
257 extern	int	zonecfg_modify_dev(zone_dochandle_t, struct zone_devtab *,
258     struct zone_devtab *);
259 extern	int	zonecfg_lookup_dev(zone_dochandle_t, struct zone_devtab *);
260 extern	int	zonecfg_match_dev(zone_dochandle_t, char *,
261     struct zone_devtab *);
262 
263 /*
264  * Resource control configuration.
265  */
266 extern	int	zonecfg_add_rctl(zone_dochandle_t, struct zone_rctltab *);
267 extern	int	zonecfg_delete_rctl(zone_dochandle_t, struct zone_rctltab *);
268 extern	int	zonecfg_modify_rctl(zone_dochandle_t, struct zone_rctltab *,
269     struct zone_rctltab *);
270 extern	int	zonecfg_lookup_rctl(zone_dochandle_t, struct zone_rctltab *);
271 extern	int	zonecfg_add_rctl_value(struct zone_rctltab *,
272     struct zone_rctlvaltab *);
273 extern	int	zonecfg_remove_rctl_value(struct zone_rctltab *,
274     struct zone_rctlvaltab *);
275 extern	void	zonecfg_free_rctl_value_list(struct zone_rctlvaltab *);
276 
277 /*
278  * Generic attribute configuration and type/value extraction.
279  */
280 extern	int	zonecfg_add_attr(zone_dochandle_t, struct zone_attrtab *);
281 extern	int	zonecfg_delete_attr(zone_dochandle_t, struct zone_attrtab *);
282 extern	int	zonecfg_modify_attr(zone_dochandle_t, struct zone_attrtab *,
283     struct zone_attrtab *);
284 extern	int	zonecfg_lookup_attr(zone_dochandle_t, struct zone_attrtab *);
285 extern	int	zonecfg_get_attr_boolean(const struct zone_attrtab *,
286     boolean_t *);
287 extern	int	zonecfg_get_attr_int(const struct zone_attrtab *, int64_t *);
288 extern	int	zonecfg_get_attr_string(const struct zone_attrtab *, char *,
289     size_t);
290 extern	int	zonecfg_get_attr_uint(const struct zone_attrtab *, uint64_t *);
291 
292 /*
293  * ZFS configuration.
294  */
295 extern	int	zonecfg_add_ds(zone_dochandle_t, struct zone_dstab *);
296 extern	int	zonecfg_delete_ds(zone_dochandle_t, struct zone_dstab *);
297 extern	int	zonecfg_modify_ds(zone_dochandle_t, struct zone_dstab *,
298     struct zone_dstab *);
299 extern	int	zonecfg_lookup_ds(zone_dochandle_t, struct zone_dstab *);
300 
301 /*
302  * attach/detach support.
303  */
304 extern	int	zonecfg_get_attach_handle(const char *, const char *,
305     boolean_t, zone_dochandle_t);
306 extern	int	zonecfg_detach_save(zone_dochandle_t);
307 extern	int	zonecfg_get_detach_info(zone_dochandle_t, boolean_t);
308 extern	boolean_t zonecfg_detached(const char *);
309 extern	void	zonecfg_rm_detached(zone_dochandle_t, boolean_t forced);
310 extern	int	zonecfg_devwalk(zone_dochandle_t handle,
311     int (*cb)(const char *, uid_t, gid_t, mode_t, const char *, void *),
312     void *data);
313 extern	int	zonecfg_devperms_apply(zone_dochandle_t, const char *,
314     uid_t, gid_t, mode_t, const char *);
315 
316 
317 /*
318  * '*ent' iterator routines.
319  */
320 extern	int	zonecfg_setfsent(zone_dochandle_t);
321 extern	int	zonecfg_getfsent(zone_dochandle_t, struct zone_fstab *);
322 extern	int	zonecfg_endfsent(zone_dochandle_t);
323 extern	int	zonecfg_setipdent(zone_dochandle_t);
324 extern	int	zonecfg_getipdent(zone_dochandle_t, struct zone_fstab *);
325 extern	int	zonecfg_endipdent(zone_dochandle_t);
326 extern	int	zonecfg_setnwifent(zone_dochandle_t);
327 extern	int	zonecfg_getnwifent(zone_dochandle_t, struct zone_nwiftab *);
328 extern	int	zonecfg_endnwifent(zone_dochandle_t);
329 extern	int	zonecfg_setdevent(zone_dochandle_t);
330 extern	int	zonecfg_getdevent(zone_dochandle_t, struct zone_devtab *);
331 extern	int	zonecfg_enddevent(zone_dochandle_t);
332 extern	int	zonecfg_setattrent(zone_dochandle_t);
333 extern	int	zonecfg_getattrent(zone_dochandle_t, struct zone_attrtab *);
334 extern	int	zonecfg_endattrent(zone_dochandle_t);
335 extern	int	zonecfg_setrctlent(zone_dochandle_t);
336 extern	int	zonecfg_getrctlent(zone_dochandle_t, struct zone_rctltab *);
337 extern	int	zonecfg_endrctlent(zone_dochandle_t);
338 extern	int	zonecfg_setdsent(zone_dochandle_t);
339 extern	int	zonecfg_getdsent(zone_dochandle_t, struct zone_dstab *);
340 extern	int	zonecfg_enddsent(zone_dochandle_t);
341 extern	int	zonecfg_setpkgent(zone_dochandle_t);
342 extern	int	zonecfg_getpkgent(zone_dochandle_t, struct zone_pkgtab *);
343 extern	int	zonecfg_endpkgent(zone_dochandle_t);
344 extern	int	zonecfg_setpatchent(zone_dochandle_t);
345 extern	int	zonecfg_getpatchent(zone_dochandle_t, struct zone_patchtab *);
346 extern	int	zonecfg_endpatchent(zone_dochandle_t);
347 extern	int	zonecfg_setdevperment(zone_dochandle_t);
348 extern	int	zonecfg_getdevperment(zone_dochandle_t,
349     struct zone_devpermtab *);
350 extern	int	zonecfg_enddevperment(zone_dochandle_t);
351 
352 /*
353  * Privilege-related functions.
354  */
355 extern	int	zonecfg_get_privset(priv_set_t *);
356 
357 /*
358  * Higher-level routines.
359  */
360 extern	int	zone_get_rootpath(char *, char *, size_t);
361 extern	int	zone_get_zonepath(char *, char *, size_t);
362 extern	int	zone_get_state(char *, zone_state_t *);
363 extern	int	zone_set_state(char *, zone_state_t);
364 extern	char	*zone_state_str(zone_state_t);
365 extern	int	zonecfg_get_name_by_uuid(const uuid_t, char *, size_t);
366 extern	int	zonecfg_get_uuid(const char *, uuid_t);
367 
368 /*
369  * Iterator for configured zones.
370  */
371 extern FILE		*setzoneent(void);
372 extern char		*getzoneent(FILE *);
373 extern struct zoneent	*getzoneent_private(FILE *);
374 extern void		endzoneent(FILE *);
375 
376 /*
377  * File-system-related convenience functions.
378  */
379 extern boolean_t zonecfg_valid_fs_type(const char *);
380 
381 /*
382  * Network-related convenience functions.
383  */
384 extern boolean_t zonecfg_same_net_address(char *, char *);
385 extern int zonecfg_valid_net_address(char *, struct lifreq *);
386 
387 /*
388  * Rctl-related common functions.
389  */
390 extern boolean_t zonecfg_is_rctl(const char *);
391 extern boolean_t zonecfg_valid_rctlname(const char *);
392 extern boolean_t zonecfg_valid_rctlblk(const rctlblk_t *);
393 extern boolean_t zonecfg_valid_rctl(const char *, const rctlblk_t *);
394 extern int zonecfg_construct_rctlblk(const struct zone_rctlvaltab *,
395     rctlblk_t *);
396 
397 /*
398  * Live Upgrade support functions.  Shared between ON and install gate.
399  */
400 extern FILE *zonecfg_open_scratch(const char *, boolean_t);
401 extern int zonecfg_lock_scratch(FILE *);
402 extern void zonecfg_close_scratch(FILE *);
403 extern int zonecfg_get_scratch(FILE *, char *, size_t, char *, size_t, char *,
404     size_t);
405 extern int zonecfg_find_scratch(FILE *, const char *, const char *, char *,
406     size_t);
407 extern int zonecfg_reverse_scratch(FILE *, const char *, char *, size_t,
408     char *, size_t);
409 extern int zonecfg_add_scratch(FILE *, const char *, const char *,
410     const char *);
411 extern int zonecfg_delete_scratch(FILE *, const char *);
412 extern boolean_t zonecfg_is_scratch(const char *);
413 
414 #ifdef __cplusplus
415 }
416 #endif
417 
418 #endif	/* _LIBZONECFG_H */
419