xref: /illumos-gate/usr/src/head/libzonecfg.h (revision 80ab886d)
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 <sys/uuid.h>
52 
53 #define	ZONE_ID_UNDEFINED	-1
54 
55 #define	Z_OK			0
56 #define	Z_EMPTY_DOCUMENT	1	/* XML doc root element is null */
57 #define	Z_WRONG_DOC_TYPE	2	/* top-level XML doc element != zone */
58 #define	Z_BAD_PROPERTY		3	/* libxml-level property problem */
59 #define	Z_TEMP_FILE		4	/* problem creating temporary file */
60 #define	Z_SAVING_FILE		5	/* libxml error saving or validating */
61 #define	Z_NO_ENTRY		6	/* no such entry */
62 #define	Z_BOGUS_ZONE_NAME	7	/* illegal zone name */
63 #define	Z_REQD_RESOURCE_MISSING	8	/* required resource missing */
64 #define	Z_REQD_PROPERTY_MISSING	9	/* required property missing */
65 #define	Z_BAD_HANDLE		10	/* bad document handle */
66 #define	Z_NOMEM			11	/* out of memory (like ENOMEM) */
67 #define	Z_INVAL			12	/* invalid argument (like EINVAL) */
68 #define	Z_ACCES			13	/* permission denied (like EACCES) */
69 #define	Z_TOO_BIG		14	/* string won't fit in char array */
70 #define	Z_MISC_FS		15	/* miscellaneous file-system error */
71 #define	Z_NO_ZONE		16	/* no such zone */
72 #define	Z_NO_RESOURCE_TYPE	17	/* no/wrong resource type */
73 #define	Z_NO_RESOURCE_ID	18	/* no/wrong resource id */
74 #define	Z_NO_PROPERTY_TYPE	19	/* no/wrong property type */
75 #define	Z_NO_PROPERTY_ID	20	/* no/wrong property id */
76 #define	Z_BAD_ZONE_STATE	21	/* zone state invalid for given task */
77 #define	Z_INVALID_DOCUMENT	22	/* libxml can't validate against DTD */
78 #define	Z_NAME_IN_USE		23	/* zone name already in use (rename) */
79 #define	Z_NO_SUCH_ID		24	/* delete_index: no old ID */
80 #define	Z_UPDATING_INDEX	25	/* add/modify/delete_index problem */
81 #define	Z_LOCKING_FILE		26	/* problem locking index file */
82 #define	Z_UNLOCKING_FILE	27	/* problem unlocking index file */
83 #define	Z_SYSTEM		28	/* consult errno instead */
84 #define	Z_INSUFFICIENT_SPEC	29	/* resource insufficiently specified */
85 #define	Z_RESOLVED_PATH		34	/* resolved path mismatch */
86 #define	Z_IPV6_ADDR_PREFIX_LEN	35	/* IPv6 address prefix length needed */
87 #define	Z_BOGUS_ADDRESS		36	/* not IPv[4|6] address or host name */
88 #define	Z_PRIV_PROHIBITED	37	/* specified privilege is prohibited */
89 #define	Z_PRIV_REQUIRED		38	/* required privilege is missing */
90 #define	Z_PRIV_UNKNOWN		39	/* specified privilege is unknown */
91 
92 /*
93  * Warning: these are shared with the admin/install consolidation.
94  * Do not insert states between any of the currently defined states,
95  * and any new states must be evaluated for impact on range comparisons.
96  */
97 #define	ZONE_STATE_CONFIGURED		0
98 #define	ZONE_STATE_INCOMPLETE		1
99 #define	ZONE_STATE_INSTALLED		2
100 #define	ZONE_STATE_READY		3
101 #define	ZONE_STATE_RUNNING		4
102 #define	ZONE_STATE_SHUTTING_DOWN	5
103 #define	ZONE_STATE_DOWN			6
104 #define	ZONE_STATE_MOUNTED		7
105 
106 #define	ZONE_STATE_MAXSTRLEN	14
107 
108 #define	LIBZONECFG_PATH		"libzonecfg.so.1"
109 
110 #define	ZONE_CONFIG_ROOT	"/etc/zones"
111 #define	ZONE_INDEX_FILE		ZONE_CONFIG_ROOT "/index"
112 
113 /* The maximum length of the VERSION string in the pkginfo(4) file. */
114 #define	ZONE_PKG_VERSMAX	256
115 
116 /*
117  * The integer field expresses the current values on a get.
118  * On a put, it represents the new values if >= 0 or "don't change" if < 0.
119  */
120 struct zoneent {
121 	char	zone_name[ZONENAME_MAX];	/* name of the zone */
122 	int	zone_state;	/* configured | incomplete | installed */
123 	char	zone_path[MAXPATHLEN];		/* path to zone storage */
124 	uuid_t	zone_uuid;			/* unique ID for zone */
125 	char	zone_newname[ZONENAME_MAX];	/* for doing renames */
126 };
127 
128 typedef struct zone_dochandle *zone_dochandle_t;	/* opaque handle */
129 
130 typedef uint_t zone_state_t;
131 
132 typedef struct zone_fsopt {
133 	struct zone_fsopt *zone_fsopt_next;
134 	char		   zone_fsopt_opt[MAX_MNTOPT_STR];
135 } zone_fsopt_t;
136 
137 struct zone_fstab {
138 	char		zone_fs_special[MAXPATHLEN]; 	/* special file */
139 	char		zone_fs_dir[MAXPATHLEN];	/* mount point */
140 	char		zone_fs_type[FSTYPSZ];		/* e.g. ufs */
141 	zone_fsopt_t   *zone_fs_options;		/* mount options */
142 	char		zone_fs_raw[MAXPATHLEN];	/* device to fsck */
143 };
144 
145 struct zone_nwiftab {
146 	char	zone_nwif_address[INET6_ADDRSTRLEN];
147 	char	zone_nwif_physical[LIFNAMSIZ];
148 };
149 
150 struct zone_devtab {
151 	char	zone_dev_match[MAXPATHLEN];
152 };
153 
154 struct zone_rctlvaltab {
155 	char	zone_rctlval_priv[MAXNAMELEN];
156 	char	zone_rctlval_limit[MAXNAMELEN];
157 	char	zone_rctlval_action[MAXNAMELEN];
158 	struct zone_rctlvaltab *zone_rctlval_next;
159 };
160 
161 struct zone_rctltab {
162 	char	zone_rctl_name[MAXNAMELEN];
163 	struct zone_rctlvaltab *zone_rctl_valptr;
164 };
165 
166 struct zone_attrtab {
167 	char	zone_attr_name[MAXNAMELEN];
168 	char	zone_attr_type[MAXNAMELEN];
169 	char	zone_attr_value[2 * BUFSIZ];
170 };
171 
172 struct zone_dstab {
173 	char	zone_dataset_name[MAXNAMELEN];
174 };
175 
176 struct zone_pkgtab {
177 	char	zone_pkg_name[MAXNAMELEN];
178 	char	zone_pkg_version[ZONE_PKG_VERSMAX];
179 };
180 
181 struct zone_patchtab {
182 	char	zone_patch_id[MAXNAMELEN];
183 };
184 
185 struct zone_devpermtab {
186 	char	zone_devperm_name[MAXPATHLEN];
187 	uid_t	zone_devperm_uid;
188 	gid_t	zone_devperm_gid;
189 	mode_t	zone_devperm_mode;
190 	char	*zone_devperm_acl;
191 };
192 
193 /*
194  * Basic configuration management routines.
195  */
196 extern	zone_dochandle_t	zonecfg_init_handle(void);
197 extern	int	zonecfg_get_handle(const char *, zone_dochandle_t);
198 extern	int	zonecfg_get_snapshot_handle(const char *, zone_dochandle_t);
199 extern	int	zonecfg_get_template_handle(const char *, const char *,
200     zone_dochandle_t);
201 extern	int	zonecfg_check_handle(zone_dochandle_t);
202 extern	void	zonecfg_fini_handle(zone_dochandle_t);
203 extern	int	zonecfg_destroy(const char *, boolean_t);
204 extern	int	zonecfg_destroy_snapshot(const char *);
205 extern	int	zonecfg_save(zone_dochandle_t);
206 extern	int	zonecfg_create_snapshot(const char *);
207 extern	char	*zonecfg_strerror(int);
208 extern	int	zonecfg_access(const char *, int);
209 extern	void	zonecfg_set_root(const char *);
210 extern	const char *zonecfg_get_root(void);
211 extern	boolean_t zonecfg_in_alt_root(void);
212 
213 /*
214  * Zone name, path to zone directory, autoboot setting and pool.
215  */
216 extern	int	zonecfg_validate_zonename(const char *);
217 extern	int	zonecfg_get_name(zone_dochandle_t, char *, size_t);
218 extern	int	zonecfg_set_name(zone_dochandle_t, char *);
219 extern	int	zonecfg_get_zonepath(zone_dochandle_t, char *, size_t);
220 extern	int	zonecfg_set_zonepath(zone_dochandle_t, char *);
221 extern	int	zonecfg_get_autoboot(zone_dochandle_t, boolean_t *);
222 extern	int	zonecfg_set_autoboot(zone_dochandle_t, boolean_t);
223 extern	int	zonecfg_get_pool(zone_dochandle_t, char *, size_t);
224 extern	int	zonecfg_set_pool(zone_dochandle_t, char *);
225 
226 /*
227  * Filesystem configuration.
228  */
229 extern	int	zonecfg_add_filesystem(zone_dochandle_t, struct zone_fstab *);
230 extern	int	zonecfg_delete_filesystem(zone_dochandle_t,
231     struct zone_fstab *);
232 extern	int	zonecfg_modify_filesystem(zone_dochandle_t,
233     struct zone_fstab *, struct zone_fstab *);
234 extern	int	zonecfg_lookup_filesystem(zone_dochandle_t,
235     struct zone_fstab *);
236 extern	int	zonecfg_add_ipd(zone_dochandle_t, struct zone_fstab *);
237 extern	int	zonecfg_delete_ipd(zone_dochandle_t, struct zone_fstab *);
238 extern	int	zonecfg_modify_ipd(zone_dochandle_t,
239     struct zone_fstab *, struct zone_fstab *);
240 extern	int	zonecfg_lookup_ipd(zone_dochandle_t, struct zone_fstab *);
241 extern	int	zonecfg_add_fs_option(struct zone_fstab *, char *);
242 extern	int	zonecfg_remove_fs_option(struct zone_fstab *, char *);
243 extern	void	zonecfg_free_fs_option_list(zone_fsopt_t *);
244 extern	int 	zonecfg_find_mounts(char *, int(*)(const char *, void *),
245     void *);
246 
247 /*
248  * Network interface configuration.
249  */
250 extern	int	zonecfg_add_nwif(zone_dochandle_t, struct zone_nwiftab *);
251 extern	int	zonecfg_delete_nwif(zone_dochandle_t, struct zone_nwiftab *);
252 extern	int	zonecfg_modify_nwif(zone_dochandle_t, struct zone_nwiftab *,
253     struct zone_nwiftab *);
254 extern	int	zonecfg_lookup_nwif(zone_dochandle_t, struct zone_nwiftab *);
255 
256 /*
257  * Device configuration and rule matching.
258  */
259 extern	int	zonecfg_add_dev(zone_dochandle_t, struct zone_devtab *);
260 extern	int	zonecfg_delete_dev(zone_dochandle_t, struct zone_devtab *);
261 extern	int	zonecfg_modify_dev(zone_dochandle_t, struct zone_devtab *,
262     struct zone_devtab *);
263 extern	int	zonecfg_lookup_dev(zone_dochandle_t, struct zone_devtab *);
264 extern	int	zonecfg_match_dev(zone_dochandle_t, char *,
265     struct zone_devtab *);
266 
267 /*
268  * Resource control configuration.
269  */
270 extern	int	zonecfg_add_rctl(zone_dochandle_t, struct zone_rctltab *);
271 extern	int	zonecfg_delete_rctl(zone_dochandle_t, struct zone_rctltab *);
272 extern	int	zonecfg_modify_rctl(zone_dochandle_t, struct zone_rctltab *,
273     struct zone_rctltab *);
274 extern	int	zonecfg_lookup_rctl(zone_dochandle_t, struct zone_rctltab *);
275 extern	int	zonecfg_add_rctl_value(struct zone_rctltab *,
276     struct zone_rctlvaltab *);
277 extern	int	zonecfg_remove_rctl_value(struct zone_rctltab *,
278     struct zone_rctlvaltab *);
279 extern	void	zonecfg_free_rctl_value_list(struct zone_rctlvaltab *);
280 
281 /*
282  * Generic attribute configuration and type/value extraction.
283  */
284 extern	int	zonecfg_add_attr(zone_dochandle_t, struct zone_attrtab *);
285 extern	int	zonecfg_delete_attr(zone_dochandle_t, struct zone_attrtab *);
286 extern	int	zonecfg_modify_attr(zone_dochandle_t, struct zone_attrtab *,
287     struct zone_attrtab *);
288 extern	int	zonecfg_lookup_attr(zone_dochandle_t, struct zone_attrtab *);
289 extern	int	zonecfg_get_attr_boolean(const struct zone_attrtab *,
290     boolean_t *);
291 extern	int	zonecfg_get_attr_int(const struct zone_attrtab *, int64_t *);
292 extern	int	zonecfg_get_attr_string(const struct zone_attrtab *, char *,
293     size_t);
294 extern	int	zonecfg_get_attr_uint(const struct zone_attrtab *, uint64_t *);
295 
296 /*
297  * ZFS configuration.
298  */
299 extern	int	zonecfg_add_ds(zone_dochandle_t, struct zone_dstab *);
300 extern	int	zonecfg_delete_ds(zone_dochandle_t, struct zone_dstab *);
301 extern	int	zonecfg_modify_ds(zone_dochandle_t, struct zone_dstab *,
302     struct zone_dstab *);
303 extern	int	zonecfg_lookup_ds(zone_dochandle_t, struct zone_dstab *);
304 
305 /*
306  * attach/detach support.
307  */
308 extern	int	zonecfg_get_attach_handle(const char *, const char *,
309     boolean_t, zone_dochandle_t);
310 extern	int	zonecfg_detach_save(zone_dochandle_t);
311 extern	int	zonecfg_get_detach_info(zone_dochandle_t, boolean_t);
312 extern	boolean_t zonecfg_detached(const char *);
313 extern	void	zonecfg_rm_detached(zone_dochandle_t, boolean_t forced);
314 extern	int	zonecfg_devwalk(zone_dochandle_t handle,
315     int (*cb)(const char *, uid_t, gid_t, mode_t, const char *, void *),
316     void *data);
317 extern	int	zonecfg_devperms_apply(zone_dochandle_t, const char *,
318     uid_t, gid_t, mode_t, const char *);
319 
320 
321 /*
322  * '*ent' iterator routines.
323  */
324 extern	int	zonecfg_setfsent(zone_dochandle_t);
325 extern	int	zonecfg_getfsent(zone_dochandle_t, struct zone_fstab *);
326 extern	int	zonecfg_endfsent(zone_dochandle_t);
327 extern	int	zonecfg_setipdent(zone_dochandle_t);
328 extern	int	zonecfg_getipdent(zone_dochandle_t, struct zone_fstab *);
329 extern	int	zonecfg_endipdent(zone_dochandle_t);
330 extern	int	zonecfg_setnwifent(zone_dochandle_t);
331 extern	int	zonecfg_getnwifent(zone_dochandle_t, struct zone_nwiftab *);
332 extern	int	zonecfg_endnwifent(zone_dochandle_t);
333 extern	int	zonecfg_setdevent(zone_dochandle_t);
334 extern	int	zonecfg_getdevent(zone_dochandle_t, struct zone_devtab *);
335 extern	int	zonecfg_enddevent(zone_dochandle_t);
336 extern	int	zonecfg_setattrent(zone_dochandle_t);
337 extern	int	zonecfg_getattrent(zone_dochandle_t, struct zone_attrtab *);
338 extern	int	zonecfg_endattrent(zone_dochandle_t);
339 extern	int	zonecfg_setrctlent(zone_dochandle_t);
340 extern	int	zonecfg_getrctlent(zone_dochandle_t, struct zone_rctltab *);
341 extern	int	zonecfg_endrctlent(zone_dochandle_t);
342 extern	int	zonecfg_setdsent(zone_dochandle_t);
343 extern	int	zonecfg_getdsent(zone_dochandle_t, struct zone_dstab *);
344 extern	int	zonecfg_enddsent(zone_dochandle_t);
345 extern	int	zonecfg_setpkgent(zone_dochandle_t);
346 extern	int	zonecfg_getpkgent(zone_dochandle_t, struct zone_pkgtab *);
347 extern	int	zonecfg_endpkgent(zone_dochandle_t);
348 extern	int	zonecfg_setpatchent(zone_dochandle_t);
349 extern	int	zonecfg_getpatchent(zone_dochandle_t, struct zone_patchtab *);
350 extern	int	zonecfg_endpatchent(zone_dochandle_t);
351 extern	int	zonecfg_setdevperment(zone_dochandle_t);
352 extern	int	zonecfg_getdevperment(zone_dochandle_t,
353     struct zone_devpermtab *);
354 extern	int	zonecfg_enddevperment(zone_dochandle_t);
355 
356 /*
357  * Privilege-related functions.
358  */
359 extern	int	zonecfg_default_privset(priv_set_t *);
360 extern	int	zonecfg_get_privset(zone_dochandle_t, priv_set_t *,
361     char **);
362 extern	int	zonecfg_get_limitpriv(zone_dochandle_t, char **);
363 extern	int	zonecfg_set_limitpriv(zone_dochandle_t, char *);
364 
365 /*
366  * Higher-level routines.
367  */
368 extern	int	zone_get_rootpath(char *, char *, size_t);
369 extern	int	zone_get_zonepath(char *, char *, size_t);
370 extern	int	zone_get_state(char *, zone_state_t *);
371 extern	int	zone_set_state(char *, zone_state_t);
372 extern	char	*zone_state_str(zone_state_t);
373 extern	int	zonecfg_get_name_by_uuid(const uuid_t, char *, size_t);
374 extern	int	zonecfg_get_uuid(const char *, uuid_t);
375 
376 /*
377  * Iterator for configured zones.
378  */
379 extern FILE		*setzoneent(void);
380 extern char		*getzoneent(FILE *);
381 extern struct zoneent	*getzoneent_private(FILE *);
382 extern void		endzoneent(FILE *);
383 
384 /*
385  * File-system-related convenience functions.
386  */
387 extern boolean_t zonecfg_valid_fs_type(const char *);
388 
389 /*
390  * Network-related convenience functions.
391  */
392 extern boolean_t zonecfg_same_net_address(char *, char *);
393 extern int zonecfg_valid_net_address(char *, struct lifreq *);
394 
395 /*
396  * Rctl-related common functions.
397  */
398 extern boolean_t zonecfg_is_rctl(const char *);
399 extern boolean_t zonecfg_valid_rctlname(const char *);
400 extern boolean_t zonecfg_valid_rctlblk(const rctlblk_t *);
401 extern boolean_t zonecfg_valid_rctl(const char *, const rctlblk_t *);
402 extern int zonecfg_construct_rctlblk(const struct zone_rctlvaltab *,
403     rctlblk_t *);
404 
405 /*
406  * Live Upgrade support functions.  Shared between ON and install gate.
407  */
408 extern FILE *zonecfg_open_scratch(const char *, boolean_t);
409 extern int zonecfg_lock_scratch(FILE *);
410 extern void zonecfg_close_scratch(FILE *);
411 extern int zonecfg_get_scratch(FILE *, char *, size_t, char *, size_t, char *,
412     size_t);
413 extern int zonecfg_find_scratch(FILE *, const char *, const char *, char *,
414     size_t);
415 extern int zonecfg_reverse_scratch(FILE *, const char *, char *, size_t,
416     char *, size_t);
417 extern int zonecfg_add_scratch(FILE *, const char *, const char *,
418     const char *);
419 extern int zonecfg_delete_scratch(FILE *, const char *);
420 extern boolean_t zonecfg_is_scratch(const char *);
421 
422 #ifdef __cplusplus
423 }
424 #endif
425 
426 #endif	/* _LIBZONECFG_H */
427