xref: /illumos-gate/usr/src/lib/libbsm/common/adt_xlate.h (revision 1a220b56b93ff1dc80855691548503117af4cc10)
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  * adt_xlate.h
23  *
24  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
25  * Use is subject to license terms.
26  *
27  */
28 
29 #ifndef _BSM_XLATE_H
30 #define	_BSM_XLATE_H
31 
32 #pragma ident	"%Z%%M%	%I%	%E% SMI"
33 
34 #include <bsm/libbsm.h>
35 #include <priv.h>
36 #include <bsm/adt_event.h>
37 
38 #ifdef	__cplusplus
39 extern "C" {
40 #endif
41 
42 #ifndef TEXT_DOMAIN
43 #define	TEXT_DOMAIN	"SYS_TEST"
44 #endif
45 
46 /*
47  * values for adt_session_model
48  * In the session model, the session and process are unrelated, so
49  * such things as the supplementary group token make no sense.  In
50  * the process model, the process and session are the same.
51  */
52 #define	ADT_SESSION_MODEL	1
53 #define	ADT_PROCESS_MODEL	0
54 
55 #define	ADT_HAVE_MASK	0x01
56 #define	ADT_HAVE_TID	0x02
57 #define	ADT_HAVE_AUID	0x04
58 #define	ADT_HAVE_ASID	0x08
59 #define	ADT_HAVE_IDS	0x10
60 #define	ADT_HAVE_ALL	(uint32_t)\
61 	(ADT_HAVE_MASK | ADT_HAVE_TID | ADT_HAVE_AUID | ADT_HAVE_ASID |\
62 	ADT_HAVE_IDS)
63 
64 /*
65  * dummy token types for privilege
66  */
67 #define	ADT_AUT_PRIV_L	-100	/* limit set */
68 #define	ADT_AUT_PRIV_I	-101	/* inherited set */
69 #define	ADT_AUT_PRIV_E	-102	/* effective set */
70 /* dummy token type for alternate command */
71 #define	ADT_CMD_ALT	-103
72 
73 enum adt_generic {ADT_GENERIC}; /* base for text enums */
74 
75 typedef struct adt_internal_state	adt_internal_state_t;
76 
77 union union_of_events {
78 	union adt_event_data	d0;
79 };
80 enum adt_msg_list {
81 	ADT_LIST_FAIL_PAM,
82 	ADT_LIST_FAIL_VALUE,
83 	ADT_LIST_LOGIN_TEXT};
84 
85 enum datatype {ADT_UNDEFINED = 0,
86     ADT_DATE,
87     ADT_MSG,
88     ADT_UINT,
89     ADT_INT,
90     ADT_INT32,
91     ADT_UINT16,
92     ADT_UINT32,
93     ADT_UINT32STAR,
94     ADT_UINT32ARRAY,
95     ADT_UID,
96     ADT_GID,
97     ADT_UIDSTAR,
98     ADT_GIDSTAR,
99     ADT_UINT64,
100     ADT_LONG,
101     ADT_ULONG,
102     ADT_CHAR,
103     ADT_CHARSTAR,
104     ADT_CHAR2STAR,	/* char **			*/
105     ADT_PID,
106     ADT_PRIVSTAR,
107     ADT_TERMIDSTAR
108 };
109 typedef enum datatype datatype_t;
110 
111 union convert {
112     enum adt_generic	msg_selector;
113     boolean_t		tbool;
114     uint_t		tuint;
115     int			tint;
116     int32_t		tint32;
117     uint16_t		tuint16;
118     uint32_t		tuint32;
119     uint64_t		tuint64;
120     int32_t		*tint32star;
121     uint32_t		*tuint32star;
122     uid_t		tuid;
123     gid_t		tgid;
124     uid_t		*tuidstar;
125     gid_t		*tgidstar;
126     pid_t		tpid;
127     long		tlong;
128     ulong_t		tulong;
129     char		tchar;
130     char		*tcharstar;
131     char		**tchar2star;
132     au_tid_addr_t 	*ttermid;
133     priv_set_t		*tprivstar;
134 };
135 
136 struct adt_event_state {
137 	union union_of_events	ae_event_data;
138 
139 	/* above is user's area; below is internal.  Order matters */
140 
141 	uint_t		ae_check;	/* see adt_internal_state	*/
142 	int		ae_event_handle;
143 	au_event_t	ae_event_id;	/* external id			*/
144 	au_event_t	ae_internal_id; /* translated			*/
145 	int		ae_rc;		/* exit token rc		*/
146 	int		ae_type;	/* exit error type		*/
147 	struct adt_internal_state *ae_session;
148 };
149 
150 struct datadefs {
151 	datatype_t	dd_datatype;	/* input data type */
152 	size_t		dd_input_size;	/* input data size */
153 };
154 typedef struct datadefs datadef;
155 
156 typedef void (* adt_token_func_t)(datadef *, void *, int,
157     struct adt_event_state *, char *);
158 
159 typedef char *(* adt_msg_func_t)(enum adt_generic);
160 
161 #define	ADT_VALID	0xAAAA5555
162 
163 struct adt_internal_state {
164 	uint32_t	as_check;	/* == ADT_VALID when created,	*/
165 					/* == zero when freed		*/
166 	uid_t		as_euid;
167 	uid_t		as_ruid;
168 	gid_t		as_egid;
169 	gid_t		as_rgid;
170 
171 	struct auditinfo_addr as_info;
172 	/*
173 	 * ai_auid				audit id
174 	 * ai_mask.am_success			pre-selection mask
175 	 * ai_mask.am_failure
176 	 * ai_termid	.at_port		terminal id
177 	 *		.at_type
178 	 *		.ai_termid.at_addr[0]
179 	 *		.ai_termid.at_addr[1]
180 	 *		.ai_termid.at_addr[2]
181 	 *		.ai_termid.at_addr[3]
182 	 * ai_asid				session id
183 	 */
184 	int		as_audit_enabled;	/* audit enable/disable state */
185 	/*
186 	 * data above this line is exported / imported
187 	 * To maintain upward compatibility, the above structures
188 	 * can't change, so for version 2, all changes will need
189 	 * to be added here and the old format (above) maintained.
190 	 */
191 
192 	uint32_t		as_have_user_data;
193 
194 	int			as_kernel_audit_policy;
195 	int			as_session_model;
196 	adt_session_flags_t	as_flags;
197 };
198 
199 /*
200  * export data format
201  * version number changes when adt_internal_state's export portion
202  * changes.
203  */
204 #define	PROTOCOL_VERSION 1
205 
206 /*
207  * most recent version is at the top; down level consumers are
208  * expected to search down via "prev_offsetX" to a version they
209  * understand.  "v1" is first, "v0" is used to illustrate correct
210  * order for future use.
211  */
212 
213 struct adt_export_v1 {
214 	int32_t		ax_euid;
215 	int32_t		ax_ruid;
216 	int32_t		ax_egid;
217 	int32_t		ax_rgid;
218 	int32_t		ax_auid;
219 	uint32_t	ax_mask_success;
220 	uint32_t	ax_mask_failure;
221 	uint32_t	ax_port;
222 	uint32_t	ax_type;
223 	uint32_t	ax_addr[4];
224 	uint32_t	ax_asid;
225 	int		ax_audit_enabled;
226 	uint32_t	ax_size_of_tsol_data;	/* zero for non-TSOL systems */
227 };
228 struct export_link {
229 	int32_t		ax_version;
230 	int32_t		ax_offset;
231 };
232 struct export_header {
233 	uint32_t		ax_check;
234 	int32_t			ax_buffer_length;
235 	struct export_link	ax_link;
236 };
237 
238 struct adt_export_data {
239 	struct export_header	ax_header;
240 
241 	struct		adt_export_v1 ax_v1;
242 	/*
243 	 * end of version 1 data
244 	 * struct export_link	ax_next_A;
245 	 * data for older version
246 	 * struct adt_export_v0 ax_v0;
247 	 */
248 	struct export_link	ax_last; /* terminator */
249 };
250 
251 /*
252  * struct entry defines rows in tables defined in adt_xlate.c
253  */
254 
255 struct entry {
256 	char		en_token_id;	/* token id */
257 	int		en_count_types;	/* # of input fields for this token */
258 	datadef		*en_type_def;	/* field type and size of each input */
259 	struct entry	*en_next_token;	/* linked list pointer */
260 	size_t		en_offset;	/* offset into structure for input */
261 	int		en_required;	/* if 1, always output a token */
262 	int		en_tsol;	/* if 1, output only #ifdef TSOL */
263 	char		*en_msg_format;	/* pointer to sprintf format string */
264 };
265 
266 struct translation {
267 	int		tx_offsetsCalculated;	/* eponymous */
268 	au_event_t	tx_external_event;	/* event id, external view */
269 	au_event_t	tx_internal_event;	/* event id, internal view */
270 	int		tx_entries;		/* array size of entry array */
271 	struct entry	*tx_first_entry;	/* start of linked list */
272 	struct entry	*tx_top_entry;		/* first array element */
273 };
274 
275 extern struct translation *xlate_table[];
276 
277 struct token_jmp {
278 	long			jmp_id;
279 	adt_token_func_t	jmp_to;
280 };
281 
282 struct msg_text {
283 	int	ml_min_index;
284 	int	ml_max_index;
285 	char	**ml_msg_list;
286 	int	ml_offset;
287 };
288 
289 extern void adt_write_syslog(const char *, int);
290 extern void adt_token_open(struct adt_event_state *);
291 extern void adt_token_close(struct adt_event_state *);
292 extern void adt_generate_token(struct entry *, void *,
293     struct adt_event_state *);
294 extern void *adt_adjust_address(void *, size_t, size_t);
295 extern void adt_preload(au_event_t, adt_event_data_t *);
296 
297 extern struct msg_text adt_msg_text[];
298 
299 #ifdef	__cplusplus
300 }
301 #endif
302 
303 #endif	/* _BSM_XLATE_H */
304