xref: /titanic_52/usr/src/lib/libipadm/common/ipadm_ipmgmt.h (revision e0731422366620894c16c1ee6515551c5f00733d)
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 
25 #ifndef _IPADM_IPMGMT_H
26 #define	_IPADM_IPMGMT_H
27 
28 #ifdef	__cplusplus
29 extern "C" {
30 #endif
31 #include <sys/types.h>
32 #include <sys/stat.h>
33 #include <fcntl.h>
34 #include <sys/mman.h>
35 #include <door.h>
36 #include <libipadm.h>
37 #include <inet/tunables.h>
38 
39 /*
40  * Function declarations and data structures shared by libipadm.so and
41  * the IP management daemon.
42  */
43 
44 /* Authorization required to configure network interfaces */
45 #define	NETWORK_INTERFACE_CONFIG_AUTH	"solaris.network.interface.config"
46 
47 /*
48  * Data store read/write utilities related declarations.
49  */
50 /*
51  * For more information on these definitions please refer to the top of
52  * ipadm_persist.c. These are the name of the nvpairs which hold the
53  * respective values. All nvpairs private to ipadm have names that begin
54  * with "_". Note below that 'prefixlen' is an address property and therefore
55  * not a private nvpair name.
56  */
57 #define	IPADM_NVP_PROTONAME	"_protocol"	/* protocol name */
58 #define	IPADM_NVP_IFNAME	"_ifname"	/* interface name */
59 #define	IPADM_NVP_AOBJNAME	"_aobjname"	/* addrobj name */
60 #define	IPADM_NVP_FAMILY	"_family"	/* address family */
61 #define	IPADM_NVP_IPV4ADDR	"_ipv4addr"	/* name of IPv4 addr nvlist */
62 #define	IPADM_NVP_IPNUMADDR	"_addr"		/* local address */
63 #define	IPADM_NVP_IPADDRHNAME	"_aname"	/* local hostname */
64 #define	IPADM_NVP_IPDADDRHNAME	"_dname"	/* remote hostname */
65 #define	IPADM_NVP_PREFIXLEN	"prefixlen"	/* prefixlen */
66 #define	IPADM_NVP_IPV6ADDR	"_ipv6addr"	/* name of IPv6 addr nvlist */
67 #define	IPADM_NVP_DHCP		"_dhcp"		/* name of DHCP nvlist */
68 #define	IPADM_NVP_WAIT		"_wait"		/* DHCP timeout value */
69 #define	IPADM_NVP_PRIMARY	"_primary"	/* DHCP primary interface */
70 #define	IPADM_NVP_LIFNUM	"_lifnum"	/* logical interface number */
71 #define	IPADM_NVP_INTFID	"_intfid"	/* name of IPv6 intfid nvlist */
72 #define	IPADM_NVP_STATELESS	"_stateless"	/* IPv6 autoconf stateless */
73 #define	IPADM_NVP_STATEFUL	"_stateful"	/* IPv6 autoconf dhcpv6 */
74 
75 #define	IPADM_PRIV_NVP(s) ((s)[0] == '_' && (s)[1] != '_')
76 
77 /*
78  * All protocol properties that are private to ipadm are stored in the
79  * ipadm datastore with "__" as prefix. This is to ensure there
80  * is no collision of namespace between ipadm private nvpair names and
81  * the private protocol property names.
82  */
83 #define	IPADM_PERSIST_PRIVPROP_PREFIX	"__"
84 
85 /* data-store operations */
86 typedef enum {
87 	IPADM_DB_WRITE = 0,	/* Writes to DB */
88 	IPADM_DB_DELETE,	/* Deletes an entry from DB */
89 	IPADM_DB_READ		/* Read from DB */
90 } ipadm_db_op_t;
91 
92 /*
93  * callback arg used by db_wfunc_t that writes to DB. The contents to be
94  * written to DB are captured in `dbw_nvl'.
95  */
96 typedef	struct	ipadm_dbwrite_cbarg_s {
97 	nvlist_t	*dbw_nvl;
98 	uint_t		dbw_flags;
99 } ipadm_dbwrite_cbarg_t;
100 
101 /*
102  * door related function declarations and data structures.
103  */
104 
105 /* The door file for the ipmgmt (ip-interface management) daemon */
106 #define	IPMGMT_DOOR		"/etc/svc/volatile/ipadm/ipmgmt_door"
107 #define	MAXPROTONAMELEN		32
108 
109 /* door call command type */
110 typedef enum {
111 	IPMGMT_CMD_SETPROP = 1,		/* persist property */
112 	IPMGMT_CMD_SETIF,		/* persist interface */
113 	IPMGMT_CMD_SETADDR,		/* persist address */
114 	IPMGMT_CMD_GETPROP,		/* retrieve persisted property value */
115 	IPMGMT_CMD_GETIF,		/* retrieve persisted interface conf. */
116 	IPMGMT_CMD_GETADDR,		/* retrieve persisted addresses */
117 	IPMGMT_CMD_RESETIF,		/* purge interface configuration */
118 	IPMGMT_CMD_RESETADDR,		/* purge address configuration */
119 	IPMGMT_CMD_RESETPROP,		/* purge property configuration */
120 	IPMGMT_CMD_INITIF,		/* retrieve interfaces to initialize */
121 	IPMGMT_CMD_ADDROBJ_LOOKUPADD,	/* addr. object lookup & add */
122 	IPMGMT_CMD_ADDROBJ_SETLIFNUM,	/* set lifnum on the addrobj */
123 	IPMGMT_CMD_ADDROBJ_ADD,		/* add addr. object to addrobj map */
124 	IPMGMT_CMD_LIF2ADDROBJ,		/* lifname to addrobj mapping */
125 	IPMGMT_CMD_AOBJNAME2ADDROBJ	/* aobjname to addrobj mapping */
126 } ipmgmt_door_cmd_type_t;
127 
128 /*
129  * Note: We need to keep the size of the structure the same on amd64 and i386
130  * for all door_call arguments and door_return structures.
131  */
132 /* door_call argument */
133 typedef struct ipmgmt_arg {
134 	ipmgmt_door_cmd_type_t	ia_cmd;
135 } ipmgmt_arg_t;
136 
137 /* IPMGMT_CMD_{SETPROP|GETPROP|RESETPROP} door_call argument */
138 typedef struct ipmgmt_prop_arg_s {
139 	ipmgmt_door_cmd_type_t	ia_cmd;
140 	uint32_t		ia_flags;
141 	char			ia_ifname[LIFNAMSIZ];
142 	char			ia_aobjname[IPADM_AOBJSIZ];
143 	char			ia_module[MAXPROTONAMELEN];
144 	char			ia_pname[MAXPROPNAMELEN];
145 	char			ia_pval[MAXPROPVALLEN];
146 } ipmgmt_prop_arg_t;
147 /*
148  * ia_flags used in ipmgmt_prop_arg_t.
149  *	- APPEND updates the multi-valued property entry with a new value
150  *	- REDUCE updates the multi-valued property entry by removing a value
151  */
152 #define	IPMGMT_APPEND	0x00000001
153 #define	IPMGMT_REMOVE	0x00000002
154 
155 /* IPMGMT_CMD_GETIF door_call argument structure */
156 typedef struct ipmgmt_getif_arg_s {
157 	ipmgmt_door_cmd_type_t	ia_cmd;
158 	uint32_t	ia_flags;
159 	char		ia_ifname[LIFNAMSIZ];
160 } ipmgmt_getif_arg_t;
161 
162 /* IPMGMT_CMD_RESETIF, IPMGMT_CMD_SETIF door_call argument structure */
163 typedef struct ipmgmt_if_arg_s {
164 	ipmgmt_door_cmd_type_t	ia_cmd;
165 	uint32_t		ia_flags;
166 	char			ia_ifname[LIFNAMSIZ];
167 	sa_family_t		ia_family;
168 } ipmgmt_if_arg_t;
169 
170 /* IPMGMT_CMD_INITIF door_call argument structure */
171 typedef struct ipmgmt_initif_arg_s {
172 	ipmgmt_door_cmd_type_t	ia_cmd;
173 	uint32_t	ia_flags;
174 	sa_family_t	ia_family;
175 	size_t		ia_nvlsize;
176 	/* packed nvl follows */
177 } ipmgmt_initif_arg_t;
178 
179 /* IPMGMT_CMD_SETADDR door_call argument */
180 typedef struct ipmgmt_setaddr_arg_s {
181 	ipmgmt_door_cmd_type_t	ia_cmd;
182 	uint32_t		ia_flags;
183 	size_t			ia_nvlsize;
184 	/* packed nvl follows */
185 } ipmgmt_setaddr_arg_t;
186 
187 /* IPMGMT_CMD_GETADDR door_call argument */
188 typedef struct ipmgmt_getaddr_arg_s {
189 	ipmgmt_door_cmd_type_t	ia_cmd;
190 	uint32_t	ia_flags;
191 	char		ia_ifname[LIFNAMSIZ];
192 	sa_family_t	ia_family;
193 	char		ia_aobjname[IPADM_AOBJSIZ];
194 } ipmgmt_getaddr_arg_t;
195 
196 /* IPMGMT_CMD_RESETADDR door_call argument */
197 typedef struct ipmgmt_addr_arg_s {
198 	ipmgmt_door_cmd_type_t	ia_cmd;
199 	uint32_t	ia_flags;
200 	char		ia_aobjname[IPADM_AOBJSIZ];
201 	int32_t		ia_lnum;
202 } ipmgmt_addr_arg_t;
203 
204 /*
205  * IPMGMT_CMD_{ADDROBJ_ADD|ADDROBJ_LOOKUPADD|LIFNUM2ADDROBJ|
206  * ADDROBJ2LIFNUM} door_call argument.
207  */
208 typedef struct ipmgmt_aobjop_arg_s {
209 	ipmgmt_door_cmd_type_t	ia_cmd;
210 	uint32_t		ia_flags;
211 	char			ia_aobjname[IPADM_AOBJSIZ];
212 	char			ia_ifname[LIFNAMSIZ];
213 	int32_t			ia_lnum;
214 	sa_family_t		ia_family;
215 	ipadm_addr_type_t	ia_atype;
216 } ipmgmt_aobjop_arg_t;
217 
218 /*
219  * ia_flags used inside the arguments for interface/address commands
220  *	- ACTIVE updates the running configuration
221  *	- PERSIST updates the permanent data store
222  *	- INIT	indicates that operation being performed is under init
223  *		    context
224  */
225 #define	IPMGMT_ACTIVE		0x00000001
226 #define	IPMGMT_PERSIST		0x00000002
227 #define	IPMGMT_INIT		0x00000004
228 
229 /* door call return value */
230 typedef struct ipmgmt_retval_s {
231 	int32_t	ir_err;
232 } ipmgmt_retval_t;
233 
234 /* IPMGMT_CMD_GETADDR door_return value */
235 typedef struct ipmgmt_get_rval_s {
236 	int32_t		ir_err;
237 	size_t		ir_nvlsize;
238 	/* packed nvl follows */
239 } ipmgmt_get_rval_t;
240 
241 /* IPMGMT_CMD_GETPROP door_return value */
242 typedef struct ipmgmt_getprop_rval_s {
243 	int32_t		ir_err;
244 	char		ir_pval[MAXPROPVALLEN];
245 } ipmgmt_getprop_rval_t;
246 
247 /* IPMGMT_CMD_GETIF door_return value */
248 typedef struct ipmgmt_getif_rval_s {
249 	int32_t		ir_err;
250 	uint32_t	ir_ifcnt;
251 	ipadm_if_info_t	ir_ifinfo[1];
252 } ipmgmt_getif_rval_t;
253 
254 /* IPMGMT_CMD_{LOOKUPADD|LIFNUM2ADDROBJ|ADDROBJ2LIFNUM} door_return value */
255 typedef struct ipmgmt_aobjop_rval_s {
256 	int32_t			ir_err;
257 	char			ir_aobjname[IPADM_AOBJSIZ];
258 	char			ir_ifname[LIFNAMSIZ];
259 	int32_t			ir_lnum;
260 	sa_family_t		ir_family;
261 	uint32_t		ir_flags;
262 	ipadm_addr_type_t	ir_atype;
263 	struct sockaddr_storage	ir_ifid;
264 } ipmgmt_aobjop_rval_t;
265 
266 /* DB walk callback functions */
267 typedef boolean_t	db_wfunc_t(void *, nvlist_t *, char *, size_t, int *);
268 extern int		ipadm_rw_db(db_wfunc_t *, void *, const char *, mode_t,
269 			    ipadm_db_op_t);
270 
271 /* zone related functions */
272 /*
273  *  callback function to persist an interface in ipmgmtd data store
274  */
275 typedef void (*persist_cb_t)(char *, boolean_t, boolean_t);
276 /*
277  * ipmgmtd/libipadm network initialization interface.
278  */
279 extern ipadm_status_t	ipadm_init_net_from_gz(ipadm_handle_t, char *,
280 			    persist_cb_t);
281 
282 #ifdef	__cplusplus
283 }
284 #endif
285 
286 #endif	/* _IPADM_IPMGMT_H */
287