xref: /titanic_52/usr/src/cmd/cmd-inet/lib/ipmgmtd/ipmgmt_impl.h (revision e5803b76927480e8f9b67b22201c484ccf4c2bcf)
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 (c) 2010, Oracle and/or its affiliates. All rights reserved.
24  */
25 
26 #ifndef	_IPMGMT_IMPL_H
27 #define	_IPMGMT_IMPL_H
28 
29 #ifdef  __cplusplus
30 extern "C" {
31 #endif
32 
33 #include <net/if.h>
34 #include <libnvpair.h>
35 #include <libipadm.h>
36 #include <ipadm_ipmgmt.h>
37 #include <syslog.h>
38 #include <pthread.h>
39 #include <libscf.h>
40 
41 #define	IPMGMT_STRSIZE		256
42 #define	IPMGMTD_FMRI		"svc:/network/ip-interface-management:default"
43 
44 /* ipmgmt_door.c */
45 extern void	ipmgmt_handler(void *, char *, size_t, door_desc_t *, uint_t);
46 
47 /* ipmgmt_util.c */
48 extern void	ipmgmt_log(int, const char *, ...);
49 extern int	ipmgmt_cpfile(const char *, const char *, boolean_t);
50 
51 /* ipmgmt_persist.c */
52 
53 /*
54  * following are the list of DB walker callback functions and the callback
55  * arguments for each of the callback functions used by the daemon
56  */
57 /* following functions take 'ipmgmt_prop_arg_t' as the callback argument */
58 extern db_wfunc_t	ipmgmt_db_getprop, ipmgmt_db_resetprop;
59 
60 /* following functions take ipadm_dbwrite_cbarg_t as callback argument */
61 extern db_wfunc_t	ipmgmt_db_add, ipmgmt_db_update;
62 
63 typedef struct {
64 	char		*cb_ifname;
65 	ipadm_if_info_t	*cb_ifinfo;
66 } ipmgmt_getif_cbarg_t;
67 extern db_wfunc_t	ipmgmt_db_getif;
68 
69 typedef struct {
70 	char		*cb_aobjname;
71 	char		*cb_ifname;
72 	nvlist_t	*cb_onvl;
73 	int		cb_ocnt;
74 } ipmgmt_getaddr_cbarg_t;
75 extern db_wfunc_t	ipmgmt_db_getaddr;
76 
77 typedef struct {
78 	sa_family_t	cb_family;
79 	char		*cb_ifname;
80 } ipmgmt_if_cbarg_t;
81 extern db_wfunc_t	ipmgmt_db_setif, ipmgmt_db_resetif;
82 
83 typedef struct {
84 	char		*cb_aobjname;
85 } ipmgmt_resetaddr_cbarg_t;
86 extern db_wfunc_t	ipmgmt_db_resetaddr;
87 
88 typedef struct {
89 	sa_family_t	cb_family;
90 	nvlist_t	*cb_invl;
91 	nvlist_t	*cb_onvl;
92 	int		cb_ocnt;
93 } ipmgmt_initif_cbarg_t;
94 extern db_wfunc_t	ipmgmt_db_initif;
95 
96 /*
97  * A linked list of address object nodes. Each node in the list tracks
98  * following information for the address object identified by `am_aobjname'.
99  *	- interface on which the address is created
100  * 	- logical interface number on which the address is created
101  *	- address family
102  *	- `am_nextnum' identifies the next number to use to generate user part
103  *	  of `aobjname'.
104  *	- address type (static, dhcp or addrconf)
105  *	- `am_flags' indicates if this addrobj in active and/or persist config
106  *	- if `am_atype' is IPADM_ADDR_IPV6_ADDRCONF then `am_ifid' holds the
107  *	  interface-id used to configure auto-configured addresses
108  */
109 typedef struct ipmgmt_aobjmap_s {
110 	struct ipmgmt_aobjmap_s	*am_next;
111 	char			am_aobjname[IPADM_AOBJSIZ];
112 	char			am_ifname[LIFNAMSIZ];
113 	int32_t			am_lnum;
114 	sa_family_t		am_family;
115 	ipadm_addr_type_t	am_atype;
116 	uint32_t		am_nextnum;
117 	uint32_t		am_flags;
118 	boolean_t		am_linklocal;
119 	struct sockaddr_storage	am_ifid;
120 } ipmgmt_aobjmap_t;
121 
122 /* linked list of `aobjmap' nodes, protected by RW lock */
123 typedef struct ipmgmt_aobjmap_list_s {
124 	ipmgmt_aobjmap_t	*aobjmap_head;
125 	pthread_rwlock_t	aobjmap_rwlock;
126 } ipmgmt_aobjmap_list_t;
127 
128 /* global `aobjmap' defined in ipmgmt_main.c */
129 extern ipmgmt_aobjmap_list_t aobjmap;
130 
131 /* operations on the `aobjmap' linked list */
132 #define	ADDROBJ_ADD		0x00000001
133 #define	ADDROBJ_DELETE		0x00000002
134 #define	ADDROBJ_LOOKUPADD	0x00000004
135 #define	ADDROBJ_SETLIFNUM	0x00000008
136 
137 /* Permanent data store for ipadm */
138 #define	IPADM_DB_FILE		"/etc/ipadm/ipadm.conf"
139 #define	IPADM_FILE_MODE		(S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
140 
141 /*
142  * With the initial integration of the daemon (PSARC 2010/080), the version
143  * of the ipadm data-store (/etc/ipadm/ipadm.conf) was 0. A subsequent fix
144  * needed an upgrade to the data-store and we bumped the version to 1.
145  */
146 #define	IPADM_DB_VERSION	1
147 
148 /*
149  * A temporary file created in SMF volatile filesystem. This file captures the
150  * in-memory copy of list `aobjmap' on disk. This is done to recover from
151  * daemon reboot (using svcadm) or crashes.
152  */
153 #define	IPADM_TMPFS_DIR		"/etc/svc/volatile/ipadm"
154 #define	ADDROBJ_MAPPING_DB_FILE	IPADM_TMPFS_DIR"/aobjmap.conf"
155 
156 /*
157  * A temporary copy of the ipadm configuration file might need
158  * to be created if write requests are encountered during boottime
159  * and the root filesystem is mounted read-only.
160  */
161 #define	IPADM_VOL_DB_FILE	IPADM_TMPFS_DIR"/ipadm.conf"
162 
163 /* SCF resources required to interact with svc.configd */
164 typedef struct scf_resources {
165 	scf_handle_t		*sr_handle;
166 	scf_instance_t		*sr_inst;
167 	scf_propertygroup_t	*sr_pg;
168 	scf_property_t		*sr_prop;
169 	scf_value_t		*sr_val;
170 	scf_transaction_t	*sr_tx;
171 	scf_transaction_entry_t	*sr_ent;
172 } scf_resources_t;
173 
174 extern int		ipmgmt_db_walk(db_wfunc_t *, void *, ipadm_db_op_t);
175 extern int		ipmgmt_aobjmap_op(ipmgmt_aobjmap_t *, uint32_t);
176 extern boolean_t	ipmgmt_aobjmap_init(void *, nvlist_t *, char *,
177 			    size_t, int *);
178 extern int 		ipmgmt_persist_aobjmap(ipmgmt_aobjmap_t *,
179 			    ipadm_db_op_t);
180 extern boolean_t	ipmgmt_ngz_firstboot_postinstall();
181 extern int		ipmgmt_persist_if(ipmgmt_if_arg_t *);
182 extern void		ipmgmt_init_prop();
183 extern boolean_t	ipmgmt_db_upgrade(void *, nvlist_t *, char *,
184 			    size_t, int *);
185 extern int		ipmgmt_create_scf_resources(const char *,
186 			    scf_resources_t *);
187 extern void		ipmgmt_release_scf_resources(scf_resources_t *);
188 extern boolean_t	ipmgmt_needs_upgrade(scf_resources_t *);
189 extern void		ipmgmt_update_dbver(scf_resources_t *);
190 
191 #ifdef  __cplusplus
192 }
193 #endif
194 
195 #endif	/* _IPMGMT_IMPL_H */
196