xref: /illumos-gate/usr/src/lib/libipadm/common/libipadm.h (revision 8887b57dc579de11464fc6c74163d2595ce073af)
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 (c) 2010, Oracle and/or its affiliates. All rights reserved.
23  */
24 #ifndef _LIBIPADM_H
25 #define	_LIBIPADM_H
26 
27 #ifdef	__cplusplus
28 extern "C" {
29 #endif
30 
31 #include <sys/types.h>
32 #include <sys/socket.h>
33 #include <net/if.h>
34 #include <netdb.h>
35 #include <ifaddrs.h>
36 #include <libnvpair.h>
37 #include <netinet/tcp.h>
38 #include <sys/stropts.h>
39 
40 #define	IPADM_AOBJ_USTRSIZ	32
41 #define	IPADM_AOBJSIZ		(LIFNAMSIZ + IPADM_AOBJ_USTRSIZ)
42 #define	MAXPROPVALLEN		512
43 #define	LOOPBACK_IF		"lo0"
44 
45 /* special timeout values for dhcp operations */
46 #define	IPADM_DHCP_WAIT_DEFAULT	(-1)
47 #define	IPADM_DHCP_WAIT_FOREVER	(-2)
48 
49 /*
50  * Specifies that the string passed to ipadm_str2nvlist() is a string of comma
51  * separated names and that each name does not have values associated with it.
52  */
53 #define	IPADM_NORVAL		0x00000001
54 
55 /* error codes */
56 typedef enum {
57 	IPADM_SUCCESS,		/* No error occurred */
58 	IPADM_FAILURE,		/* Generic failure */
59 	IPADM_EAUTH,		/* Insufficient user authorizations */
60 	IPADM_EPERM,		/* Permission denied */
61 	IPADM_NO_BUFS,		/* No Buffer space available */
62 	IPADM_NO_MEMORY,	/* Insufficient memory */
63 	IPADM_BAD_ADDR,		/* Invalid address */
64 	IPADM_BAD_PROTOCOL,	/* Wrong protocol family for operation */
65 	IPADM_DAD_FOUND,	/* Duplicate address detected */
66 	IPADM_EXISTS,		/* Already exists */
67 	IPADM_IF_EXISTS,	/* Interface already exists */
68 	IPADM_ADDROBJ_EXISTS,	/* Address object already exists */
69 	IPADM_ADDRCONF_EXISTS,	/* Addrconf already in progress */
70 	IPADM_ENXIO,		/* Interface does not exist */
71 	IPADM_GRP_NOTEMPTY,	/* IPMP Group non-empty on unplumb */
72 	IPADM_INVALID_ARG,	/* Invalid argument */
73 	IPADM_INVALID_NAME,	/* Invalid name */
74 	IPADM_DLPI_FAILURE,	/* Could not open DLPI link */
75 	IPADM_DLADM_FAILURE,	/* DLADM error encountered */
76 	IPADM_PROP_UNKNOWN,	/* Unknown property */
77 	IPADM_ERANGE,		/* Value is outside the allowed range */
78 	IPADM_ESRCH,		/* Value does not exist */
79 	IPADM_EOVERFLOW,	/* Number of values exceed the allowed limit */
80 	IPADM_NOTFOUND,		/* Object not found */
81 	IPADM_IF_INUSE,		/* Interface already in use */
82 	IPADM_ADDR_INUSE,	/* Address alrelady in use */
83 	IPADM_BAD_HOSTNAME,	/* hostname maps to multiple IP addresses */
84 	IPADM_ADDR_NOTAVAIL,	/* Can't assign requested address */
85 	IPADM_ALL_ADDRS_NOT_ENABLED, /* All addresses could not be enabled */
86 	IPADM_NDPD_NOT_RUNNING,	/* in.ndpd not running */
87 	IPADM_DHCP_START_ERROR,	/* Cannot start dhcpagent */
88 	IPADM_DHCP_IPC_ERROR,	/* Cannot communicate with dhcpagent */
89 	IPADM_DHCP_IPC_TIMEOUT,	/* Communication with dhcpagent timed out */
90 	IPADM_TEMPORARY_OBJ,	/* Permanent operation on temporary object */
91 	IPADM_IPC_ERROR,	/* Cannot communicate with ipmgmtd */
92 	IPADM_OP_DISABLE_OBJ,	/* Operation on disable object */
93 	IPADM_NOTSUP,		/* Operation not supported */
94 	IPADM_EBADE,		/* Invalid data exchange with ipmgmtd */
95 	IPADM_GZ_PERM		/* Operation not permitted on from-gz intf */
96 } ipadm_status_t;
97 
98 /*
99  * option flags taken by the libipadm functions
100  *
101  *  - IPADM_OPT_PERSIST:
102  *	For all the create/delete/up/down/set/get functions,
103  * 	requests to persist the configuration so that it can be
104  *	re-enabled or reapplied on boot.
105  *
106  *  - IPADM_OPT_ACTIVE:
107  *	Requests to apply configuration without persisting it and
108  *	used by show-* subcommands to retrieve current values.
109  *
110  *  - IPADM_OPT_DEFAULT:
111  *	retrieves the default value for a given property
112  *
113  *  - IPADM_OPT_PERM
114  *	retrieves the permission for a given property
115  *
116  *  - IPADM_OPT_POSSIBLE
117  *	retrieves the range of values for a given property
118  *
119  *  - IPADM_OPT_APPEND
120  *	for multi-valued properties, appends a new value.
121  *
122  *  - IPADM_OPT_REMOVE
123  *	for multi-valued properties, removes the specified value
124  *
125  *  - IPADM_OPT_IPMP
126  *	Used in ipadm_create_if() to plumb ipmp interfaces.
127  *
128  *  - IPADM_OPT_GENPPA
129  *	Used in ipadm_create_if() to generate a ppa for the given interface.
130  *
131  *  - IPADM_OPT_ZEROADDR
132  *	return :: or INADDR_ANY
133  *
134  *  - IPADM_OPT_RELEASE
135  *	Used to release the lease on a dhcp address object
136  *
137  *  - IPADM_OPT_INFORM
138  *	Used to perform DHCP_INFORM on a specified static address object
139  *
140  *  - IPADM_OPT_UP
141  *	Used to bring up a static address on creation
142  *
143  *  - IPADM_OPT_V46
144  *      Used to plumb both IPv4 and IPv6 interfaces by ipadm_create_addr()
145  */
146 #define	IPADM_OPT_PERSIST	0x00000001
147 #define	IPADM_OPT_ACTIVE	0x00000002
148 #define	IPADM_OPT_DEFAULT	0x00000004
149 #define	IPADM_OPT_PERM		0x00000008
150 #define	IPADM_OPT_POSSIBLE	0x00000010
151 #define	IPADM_OPT_APPEND	0x00000020
152 #define	IPADM_OPT_REMOVE	0x00000040
153 #define	IPADM_OPT_IPMP		0x00000080
154 #define	IPADM_OPT_GENPPA	0x00000100
155 #define	IPADM_OPT_ZEROADDR	0x00000200
156 #define	IPADM_OPT_RELEASE	0x00000400
157 #define	IPADM_OPT_INFORM	0x00000800
158 #define	IPADM_OPT_UP		0x00001000
159 #define	IPADM_OPT_V46		0x00002000
160 
161 /* IPADM property class */
162 #define	IPADMPROP_CLASS_MODULE	0x00000001	/* on 'protocol' only */
163 #define	IPADMPROP_CLASS_IF	0x00000002	/* on 'IP interface' only */
164 #define	IPADMPROP_CLASS_ADDR	0x00000004	/* on 'IP address' only */
165 /* protocol property that can be applied on interface too */
166 #define	IPADMPROP_CLASS_MODIF	(IPADMPROP_CLASS_MODULE | IPADMPROP_CLASS_IF)
167 
168 /* opaque ipadm handle to libipadm functions */
169 struct ipadm_handle;
170 typedef struct ipadm_handle	*ipadm_handle_t;
171 
172 /* ipadm_handle flags */
173 #define	IPH_VRRP		0x00000001	/* Caller is VRRP */
174 #define	IPH_LEGACY		0x00000002	/* Caller is legacy app */
175 #define	IPH_IPMGMTD		0x00000004	/* Caller is ipmgmtd itself */
176 /*
177  * Indicates that the operation being invoked is in 'init' context. This is
178  * a library private flag.
179  */
180 #define	IPH_INIT		0x10000000
181 
182 /* opaque address object structure */
183 typedef struct ipadm_addrobj_s	*ipadm_addrobj_t;
184 
185 /* ipadm_if_info_t states */
186 typedef enum {
187 	IFIS_OK,		/* Interface is usable */
188 	IFIS_DOWN,		/* Interface has no UP addresses */
189 	IFIS_FAILED,		/* Interface has failed. */
190 	IFIS_OFFLINE,		/* Interface has been offlined */
191 	IFIS_DISABLED		/* Interface has been disabled. */
192 } ipadm_if_state_t;
193 
194 typedef struct ipadm_if_info_s {
195 	struct ipadm_if_info_s	*ifi_next;
196 	char			ifi_name[LIFNAMSIZ];	/* interface name */
197 	ipadm_if_state_t	ifi_state;		/* see above */
198 	uint_t			ifi_cflags;		/* current flags */
199 	uint_t			ifi_pflags;		/* persistent flags */
200 } ipadm_if_info_t;
201 
202 /* ipadm_if_info_t flags */
203 #define	IFIF_BROADCAST		0x00000001
204 #define	IFIF_MULTICAST		0x00000002
205 #define	IFIF_POINTOPOINT	0x00000004
206 #define	IFIF_VIRTUAL		0x00000008
207 #define	IFIF_IPMP		0x00000010
208 #define	IFIF_STANDBY		0x00000020
209 #define	IFIF_INACTIVE		0x00000040
210 #define	IFIF_VRRP		0x00000080
211 #define	IFIF_NOACCEPT		0x00000100
212 #define	IFIF_IPV4		0x00000200
213 #define	IFIF_IPV6		0x00000400
214 #define	IFIF_L3PROTECT		0x00000800
215 
216 /* ipadm_addr_info_t state */
217 typedef enum {
218 	IFA_DISABLED,		/* Address not in active configuration. */
219 	IFA_DUPLICATE,		/* DAD failed. */
220 	IFA_DOWN,		/* Address is not IFF_UP */
221 	IFA_TENTATIVE,		/* DAD verification initiated */
222 	IFA_OK,			/* Address is usable */
223 	IFA_INACCESSIBLE	/* Interface has failed */
224 } ipadm_addr_state_t;
225 
226 /* possible address types */
227 typedef enum  {
228 	IPADM_ADDR_NONE,
229 	IPADM_ADDR_STATIC,
230 	IPADM_ADDR_IPV6_ADDRCONF,
231 	IPADM_ADDR_DHCP
232 } ipadm_addr_type_t;
233 
234 typedef struct ipadm_addr_info_s {
235 	struct ifaddrs		ia_ifa;		/* list of addresses */
236 	char			ia_sname[NI_MAXHOST];	/* local hostname */
237 	char			ia_dname[NI_MAXHOST];	/* remote hostname */
238 	char			ia_aobjname[IPADM_AOBJSIZ];
239 	uint_t			ia_cflags;	/* active flags */
240 	uint_t			ia_pflags;	/* persistent flags */
241 	ipadm_addr_type_t	ia_atype;	/* see above */
242 	ipadm_addr_state_t	ia_state;	/* see above */
243 } ipadm_addr_info_t;
244 #define	IA_NEXT(ia)		((ipadm_addr_info_t *)(ia->ia_ifa.ifa_next))
245 
246 /* ipadm_addr_info_t flags */
247 #define	IA_UP			0x00000001
248 #define	IA_UNNUMBERED		0x00000002
249 #define	IA_PRIVATE		0x00000004
250 #define	IA_TEMPORARY		0x00000008
251 #define	IA_DEPRECATED		0x00000010
252 
253 /* open/close libipadm handle */
254 extern ipadm_status_t	ipadm_open(ipadm_handle_t *, uint32_t);
255 extern void		ipadm_close(ipadm_handle_t);
256 
257 /* Check authorization for network configuration */
258 extern boolean_t	ipadm_check_auth(void);
259 /*
260  * Interface mangement functions
261  */
262 extern ipadm_status_t	ipadm_create_if(ipadm_handle_t, char *, sa_family_t,
263 			    uint32_t);
264 extern ipadm_status_t	ipadm_disable_if(ipadm_handle_t, const char *,
265 			    uint32_t);
266 extern ipadm_status_t	ipadm_enable_if(ipadm_handle_t, const char *, uint32_t);
267 extern ipadm_status_t	ipadm_if_info(ipadm_handle_t, const char *,
268 			    ipadm_if_info_t **, uint32_t, int64_t);
269 extern void		ipadm_free_if_info(ipadm_if_info_t *);
270 extern ipadm_status_t	ipadm_delete_if(ipadm_handle_t, const char *,
271 			    sa_family_t, uint32_t);
272 extern void		ipadm_if_move(ipadm_handle_t, const char *);
273 
274 /*
275  * Address management functions
276  */
277 extern ipadm_status_t	ipadm_create_addr(ipadm_handle_t, ipadm_addrobj_t,
278 			    uint32_t);
279 extern ipadm_status_t	ipadm_disable_addr(ipadm_handle_t, const char *,
280 			    uint32_t);
281 extern ipadm_status_t	ipadm_enable_addr(ipadm_handle_t, const char *,
282 			    uint32_t);
283 extern ipadm_status_t	ipadm_addr_info(ipadm_handle_t, const char *,
284 			    ipadm_addr_info_t **, uint32_t, int64_t);
285 extern void		ipadm_free_addr_info(ipadm_addr_info_t *);
286 extern ipadm_status_t	ipadm_up_addr(ipadm_handle_t, const char *,
287 			    uint32_t);
288 extern ipadm_status_t	ipadm_down_addr(ipadm_handle_t, const char *,
289 			    uint32_t);
290 extern ipadm_status_t	ipadm_refresh_addr(ipadm_handle_t, const char *,
291 			    uint32_t);
292 extern ipadm_status_t	ipadm_delete_addr(ipadm_handle_t, const char *,
293 			    uint32_t);
294 
295 /* Functions related to creating/deleting/modifying opaque address object */
296 extern ipadm_status_t	ipadm_create_addrobj(ipadm_addr_type_t, const char *,
297 			    ipadm_addrobj_t *);
298 extern void		ipadm_destroy_addrobj(ipadm_addrobj_t);
299 extern ipadm_status_t   ipadm_get_aobjname(const ipadm_addrobj_t, char *,
300 			    size_t);
301 
302 /* Functions to set fields in addrobj for static addresses */
303 extern ipadm_status_t	ipadm_set_addr(ipadm_addrobj_t, const char *,
304 			    sa_family_t);
305 extern ipadm_status_t	ipadm_set_dst_addr(ipadm_addrobj_t, const char *,
306 			    sa_family_t);
307 extern ipadm_status_t   ipadm_get_addr(const ipadm_addrobj_t,
308 			    struct sockaddr_storage *);
309 
310 /* Functions to set fields in addrobj for IPv6 addrconf */
311 extern ipadm_status_t	ipadm_set_interface_id(ipadm_addrobj_t, const char *);
312 extern ipadm_status_t	ipadm_set_stateless(ipadm_addrobj_t, boolean_t);
313 extern ipadm_status_t	ipadm_set_stateful(ipadm_addrobj_t, boolean_t);
314 
315 /* Functions to set fields in addrobj for DHCP */
316 extern ipadm_status_t	ipadm_set_primary(ipadm_addrobj_t, boolean_t);
317 extern ipadm_status_t	ipadm_set_wait_time(ipadm_addrobj_t, int32_t);
318 
319 /*
320  * Property management functions
321  */
322 /* call back function for the property walker */
323 typedef boolean_t	ipadm_prop_wfunc_t(void *, const char *, uint_t);
324 extern ipadm_status_t	ipadm_walk_proptbl(uint_t, uint_t, ipadm_prop_wfunc_t *,
325 			    void *);
326 extern ipadm_status_t	ipadm_walk_prop(const char *, uint_t, uint_t,
327 			    ipadm_prop_wfunc_t *, void *);
328 
329 /* Interface property management - set, reset and get */
330 extern ipadm_status_t	ipadm_set_ifprop(ipadm_handle_t, const char *,
331 			    const char *, const char *, uint_t, uint_t);
332 extern ipadm_status_t	ipadm_get_ifprop(ipadm_handle_t, const char *,
333 			    const char *, char *, uint_t *, uint_t, uint_t);
334 
335 /* Address property management - set, reset and get */
336 extern ipadm_status_t	ipadm_set_addrprop(ipadm_handle_t, const char *,
337 			    const char *, const char *, uint_t);
338 extern ipadm_status_t	ipadm_get_addrprop(ipadm_handle_t, const char *, char *,
339 			    uint_t *, const char *, uint_t);
340 
341 /* Protoocl property management - set, reset and get */
342 extern ipadm_status_t	ipadm_set_prop(ipadm_handle_t, const char *,
343 			    const char *, uint_t, uint_t);
344 extern ipadm_status_t	ipadm_get_prop(ipadm_handle_t, const char *, char *,
345 			    uint_t *, uint_t, uint_t);
346 
347 /*
348  * miscellaneous helper functions.
349  */
350 extern const char 	*ipadm_status2str(ipadm_status_t);
351 extern int		ipadm_str2nvlist(const char *, nvlist_t **, uint_t);
352 extern size_t		ipadm_nvlist2str(nvlist_t *, char *, size_t);
353 extern char		*ipadm_proto2str(uint_t);
354 extern uint_t		ipadm_str2proto(const char *);
355 extern ipadm_status_t	ipadm_open_arp_on_udp(const char *, int *);
356 extern int		ipadm_legacy2new_propname(const char *, char *,
357 			    uint_t, uint_t *);
358 extern int		ipadm_new2legacy_propname(const char *, char *,
359 			    uint_t, uint_t);
360 
361 #ifdef	__cplusplus
362 }
363 #endif
364 
365 #endif	/* _LIBIPADM_H */
366