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 2010 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _BSM_AUDIT_RECORD_H
27 #define	_BSM_AUDIT_RECORD_H
28 
29 
30 #ifdef _KERNEL
31 #include <sys/priv.h>
32 #else
33 #include <priv.h>
34 #endif
35 #include <sys/socket.h>
36 #include <sys/acl.h>
37 
38 #include <sys/tsol/label.h>
39 
40 #ifdef __cplusplus
41 extern "C" {
42 #endif
43 
44 /*
45  * Version of audit attributes
46  *
47  * OS Release      Version Number    Comments
48  * ==========      ==============    ========
49  * SunOS 5.1              2        Unbundled Package
50  * SunOS 5.3              2        Bundled into the base OS
51  * SunOS 5.4-5.x          2
52  * Trusted Solaris 2.5    3        To distinguish potential new tokens
53  * Trusted Solaris 7-8    4        Redefine X tokens that overlap with
54  *                                 SunOS 5.7
55  */
56 
57 #define	TOKEN_VERSION   2
58 
59 /*
60  * Audit record token type codes
61  */
62 
63 /*
64  * Control token types
65  */
66 
67 #define	AUT_INVALID		((char)0x00)
68 #define	AUT_OTHER_FILE		((char)0x11)
69 #define	AUT_OTHER_FILE32	AUT_OTHER_FILE
70 #define	AUT_OHEADER		((char)0x12)
71 #define	AUT_TRAILER		((char)0x13)
72 #define	AUT_HEADER		((char)0x14)
73 #define	AUT_HEADER32		AUT_HEADER
74 #define	AUT_HEADER32_EX		((char)0x15)
75 #define	AUT_TRAILER_MAGIC	((short)0xB105)
76 
77 /*
78  * Data token types
79  */
80 
81 #define	AUT_FMRI		((char)0x20)
82 #define	AUT_DATA		((char)0x21)
83 #define	AUT_IPC			((char)0x22)
84 #define	AUT_PATH		((char)0x23)
85 #define	AUT_SUBJECT		((char)0x24)
86 #define	AUT_SUBJECT32		AUT_SUBJECT
87 #define	AUT_XATPATH		((char)0x25)
88 #define	AUT_PROCESS		((char)0x26)
89 #define	AUT_PROCESS32		AUT_PROCESS
90 #define	AUT_RETURN		((char)0x27)
91 #define	AUT_RETURN32		AUT_RETURN
92 #define	AUT_TEXT		((char)0x28)
93 #define	AUT_OPAQUE		((char)0x29)
94 #define	AUT_IN_ADDR		((char)0x2A)
95 #define	AUT_IP			((char)0x2B)
96 #define	AUT_IPORT		((char)0x2C)
97 #define	AUT_ARG			((char)0x2D)
98 #define	AUT_ARG32		AUT_ARG
99 #define	AUT_SOCKET		((char)0x2E)
100 #define	AUT_SEQ			((char)0x2F)
101 #define	AUT_TID			((char)0x61)
102 
103 /*
104  * Modifier token types
105  */
106 
107 #define	AUT_ACL			((char)0x30)
108 #define	AUT_ATTR		((char)0x31)
109 #define	AUT_IPC_PERM		((char)0x32)
110 #define	AUT_LABEL		((char)0x33)
111 #define	AUT_GROUPS		((char)0x34)
112 #define	AUT_ACE			((char)0x35)
113 /*
114  * 0x36, 0x37 unused
115  */
116 #define	AUT_PRIV		((char)0x38)
117 #define	AUT_UPRIV		((char)0x39)
118 #define	AUT_LIAISON		((char)0x3A)
119 #define	AUT_NEWGROUPS		((char)0x3B)
120 #define	AUT_EXEC_ARGS		((char)0x3C)
121 #define	AUT_EXEC_ENV		((char)0x3D)
122 #define	AUT_ATTR32		((char)0x3E)
123 #define	AUT_UAUTH		((char)0x3F)
124 #define	AUT_ZONENAME		((char)0x60)
125 
126 /*
127  * X windows token types
128  */
129 
130 #define	AUT_XATOM		((char)0x40)
131 #define	AUT_XOBJ		((char)0x41)
132 #define	AUT_XPROTO		((char)0x42)
133 #define	AUT_XSELECT		((char)0x43)
134 
135 #if	TOKEN_VERSION != 3
136 #define	AUT_XCOLORMAP		((char)0x44)
137 #define	AUT_XCURSOR		((char)0x45)
138 #define	AUT_XFONT		((char)0x46)
139 #define	AUT_XGC			((char)0x47)
140 #define	AUT_XPIXMAP		((char)0x48)
141 #define	AUT_XPROPERTY		((char)0x49)
142 #define	AUT_XWINDOW		((char)0x4A)
143 #define	AUT_XCLIENT		((char)0x4B)
144 #else	/* TOKEN_VERSION == 3 */
145 #define	AUT_XCOLORMAP		((char)0x74)
146 #define	AUT_XCURSOR		((char)0x75)
147 #define	AUT_XFONT		((char)0x76)
148 #define	AUT_XGC			((char)0x77)
149 #define	AUT_XPIXMAP		((char)0x78)
150 #define	AUT_XPROPERTY		((char)0x79)
151 #define	AUT_XWINDOW		((char)0x7A)
152 #define	AUT_XCLIENT		((char)0x7B)
153 #endif	/* TOKEN_VERSION != 3 */
154 
155 /*
156  * Command token types
157  */
158 
159 #define	AUT_CMD   		((char)0x51)
160 #define	AUT_EXIT   		((char)0x52)
161 
162 /*
163  * Miscellaneous token types
164  */
165 
166 #define	AUT_HOST		((char)0x70)
167 
168 /*
169  * Solaris64 token types
170  */
171 
172 #define	AUT_ARG64		((char)0x71)
173 #define	AUT_RETURN64		((char)0x72)
174 #define	AUT_ATTR64		((char)0x73)
175 #define	AUT_HEADER64		((char)0x74)
176 #define	AUT_SUBJECT64		((char)0x75)
177 #define	AUT_PROCESS64		((char)0x77)
178 #define	AUT_OTHER_FILE64	((char)0x78)
179 
180 /*
181  * Extended network address token types
182  */
183 
184 #define	AUT_HEADER64_EX		((char)0x79)
185 #define	AUT_SUBJECT32_EX	((char)0x7a)
186 #define	AUT_PROCESS32_EX	((char)0x7b)
187 #define	AUT_SUBJECT64_EX	((char)0x7c)
188 #define	AUT_PROCESS64_EX	((char)0x7d)
189 #define	AUT_IN_ADDR_EX		((char)0x7e)
190 #define	AUT_SOCKET_EX		((char)0x7f)
191 
192 
193 /*
194  * Audit print suggestion types.
195  */
196 
197 #define	AUP_BINARY	((char)0)
198 #define	AUP_OCTAL	((char)1)
199 #define	AUP_DECIMAL	((char)2)
200 #define	AUP_HEX		((char)3)
201 #define	AUP_STRING	((char)4)
202 
203 /*
204  * Audit data member types.
205  */
206 
207 #define	AUR_BYTE	((char)0)
208 #define	AUR_CHAR	((char)0)
209 #define	AUR_SHORT	((char)1)
210 #define	AUR_INT		((char)2)
211 #define	AUR_INT32	((char)2)
212 #define	AUR_INT64	((char)3)
213 
214 /*
215  * Adr structures
216  */
217 
218 struct adr_s {
219 	char *adr_stream;	/* The base of the stream */
220 	char *adr_now;		/* The location within the stream */
221 };
222 
223 typedef struct adr_s adr_t;
224 
225 
226 #ifdef _KERNEL
227 
228 #include <sys/param.h>
229 #include <sys/systm.h>		/* for rval */
230 #include <sys/time.h>
231 #include <sys/types.h>
232 #include <sys/vnode.h>
233 #include <sys/mode.h>
234 #include <sys/user.h>
235 #include <sys/session.h>
236 #include <sys/ipc_impl.h>
237 #include <netinet/in_systm.h>
238 #include <netinet/in.h>
239 #include <netinet/ip.h>
240 #include <sys/socket.h>
241 #include <net/route.h>
242 #include <netinet/in_pcb.h>
243 
244 /*
245  * au_close flag arguments
246  */
247 
248 #define	AU_OK		0x1	/* Good audit record */
249 #define	AU_DONTBLOCK	0x2	/* Don't block or discard if queue full */
250 #define	AU_DEFER	0x4	/* Defer record queueing to syscall end */
251 
252 /*
253  * Audit token type is really an au_membuf pointer
254  */
255 typedef au_buff_t token_t;
256 /*
257  * token generation functions
258  */
259 token_t *au_append_token(token_t *, token_t *);
260 token_t *au_set(caddr_t, uint_t);
261 
262 void au_free_rec(au_buff_t *);
263 
264 #define	au_getclr()		((token_t *)au_get_buff())
265 #define	au_toss_token(tok)	(au_free_rec((au_buff_t *)(tok)))
266 
267 token_t *au_to_acl();
268 token_t *au_to_ace();
269 token_t *au_to_attr(struct vattr *);
270 token_t *au_to_data(char, char, char, char *);
271 token_t *au_to_header(int, au_event_t, au_emod_t);
272 token_t *au_to_header_ex(int, au_event_t, au_emod_t);
273 token_t *au_to_ipc(char, int);
274 token_t *au_to_ipc_perm(kipc_perm_t *);
275 token_t *au_to_iport(ushort_t);
276 token_t *au_to_in_addr(struct in_addr *);
277 token_t *au_to_in_addr_ex(int32_t *);
278 token_t *au_to_ip(struct ip *);
279 token_t *au_to_groups(const gid_t *, uint_t);
280 token_t *au_to_path(struct audit_path *);
281 token_t *au_to_seq();
282 token_t *au_to_process(uid_t, gid_t, uid_t, gid_t, pid_t,
283 			au_id_t, au_asid_t, const au_tid_addr_t *);
284 token_t *au_to_subject(uid_t, gid_t, uid_t, gid_t, pid_t,
285 			au_id_t, au_asid_t, const au_tid_addr_t *);
286 token_t *au_to_return32(int, int32_t);
287 token_t *au_to_return64(int, int64_t);
288 token_t *au_to_text(const char *);
289 /* token_t *au_to_tid(au_generic_tid_t *);  no kernel implementation */
290 token_t *au_to_trailer(int);
291 token_t *au_to_uauth(char *);
292 size_t	au_zonename_length(zone_t *);
293 token_t *au_to_zonename(size_t, zone_t *);
294 token_t *au_to_arg32(char, char *, uint32_t);
295 token_t *au_to_arg64(char, char *, uint64_t);
296 token_t *au_to_socket_ex(short, short, char *, char *);
297 token_t *au_to_sock_inet(struct sockaddr_in *);
298 token_t *au_to_exec_args(const char *, ssize_t);
299 token_t *au_to_exec_env(const char *, ssize_t);
300 token_t	*au_to_label(bslabel_t *);
301 token_t	*au_to_privset(const char *, const priv_set_t *, char, int);
302 
303 void	au_uwrite();
304 void	au_close(au_kcontext_t *, caddr_t *, int, au_event_t, au_emod_t,
305     timestruc_t *);
306 void	au_close_defer(token_t *, int, au_event_t, au_emod_t, timestruc_t *);
307 void	au_close_time(au_kcontext_t *, token_t *, int, au_event_t, au_emod_t,
308 	    timestruc_t *);
309 void	au_free_rec(au_buff_t *);
310 void	au_write(caddr_t *, token_t *);
311 void	au_mem_init(void);
312 void	au_zone_setup();
313 void	au_enqueue(au_kcontext_t *, au_buff_t *, adr_t *, adr_t *, int, int);
314 int	au_doorio(au_kcontext_t *);
315 int	au_doormsg(au_kcontext_t *, uint32_t, void *);
316 int	au_token_size(token_t *);
317 int	au_append_rec(au_buff_t *, au_buff_t *, int);
318 int	au_append_buf(const char *, int, au_buff_t *);
319 
320 #else /* !_KERNEL */
321 
322 #include <limits.h>
323 #include <sys/types.h>
324 #include <sys/vnode.h>
325 #include <netinet/in_systm.h>
326 #include <netinet/in.h>
327 #include <netinet/ip.h>
328 #include <sys/ipc.h>
329 
330 struct token_s {
331 	struct token_s	*tt_next;	/* Next in the list	*/
332 	short		tt_size;	/* Size of data		*/
333 	char		*tt_data;	/* The data		*/
334 };
335 typedef struct token_s token_t;
336 
337 /*
338  *	Old socket structure definition, formerly in <sys/socketvar.h>
339  */
340 struct oldsocket {
341 	short	so_type;		/* generic type, see socket.h */
342 	short	so_options;		/* from socket call, see socket.h */
343 	short	so_linger;		/* time to linger while closing */
344 	short	so_state;		/* internal state flags SS_*, below */
345 	struct inpcb	*so_pcb;	/* protocol control block */
346 	struct	protosw *so_proto;	/* protocol handle */
347 /*
348  * Variables for connection queueing.
349  * Socket where accepts occur is so_head in all subsidiary sockets.
350  * If so_head is 0, socket is not related to an accept.
351  * For head socket so_q0 queues partially completed connections,
352  * while so_q is a queue of connections ready to be accepted.
353  * If a connection is aborted and it has so_head set, then
354  * it has to be pulled out of either so_q0 or so_q.
355  * We allow connections to queue up based on current queue lengths
356  * and limit on number of queued connections for this socket.
357  */
358 	struct	oldsocket *so_head;	/* back pointer to accept socket */
359 	struct	oldsocket *so_q0;	/* queue of partial connections */
360 	struct	oldsocket *so_q;	/* queue of incoming connections */
361 	short	so_q0len;		/* partials on so_q0 */
362 	short	so_qlen;		/* number of connections on so_q */
363 	short	so_qlimit;		/* max number queued connections */
364 	short	so_timeo;		/* connection timeout */
365 	ushort_t so_error;		/* error affecting connection */
366 	short	so_pgrp;		/* pgrp for signals */
367 	ulong_t	so_oobmark;		/* chars to oob mark */
368 /*
369  * Variables for socket buffering.
370  */
371 	struct	sockbuf {
372 		ulong_t	sb_cc;		/* actual chars in buffer */
373 		ulong_t	sb_hiwat;	/* max actual char count */
374 		ulong_t	sb_mbcnt;	/* chars of mbufs used */
375 		ulong_t	sb_mbmax;	/* max chars of mbufs to use */
376 		ulong_t	sb_lowat;	/* low water mark (not used yet) */
377 		struct	mbuf *sb_mb;	/* the mbuf chain */
378 		struct	proc *sb_sel;	/* process selecting read/write */
379 		short	sb_timeo;	/* timeout (not used yet) */
380 		short	sb_flags;	/* flags, see below */
381 	} so_rcv, so_snd;
382 /*
383  * Hooks for alternative wakeup strategies.
384  * These are used by kernel subsystems wishing to access the socket
385  * abstraction.  If so_wupfunc is nonnull, it is called in place of
386  * wakeup any time that wakeup would otherwise be called with an
387  * argument whose value is an address lying within a socket structure.
388  */
389 	struct wupalt	*so_wupalt;
390 };
391 extern token_t *au_to_arg32(char, char *, uint32_t);
392 extern token_t *au_to_arg64(char, char *, uint64_t);
393 extern token_t *au_to_acl(struct acl *);
394 extern token_t *au_to_attr(struct vattr *);
395 extern token_t *au_to_cmd(uint_t, char **, char **);
396 extern token_t *au_to_data(char, char, char, char *);
397 extern token_t *au_to_exec_args(char **);
398 extern token_t *au_to_exec_env(char **);
399 extern token_t *au_to_exit(int, int);
400 extern token_t *au_to_fmri(char *);
401 extern token_t *au_to_groups(int *);
402 extern token_t *au_to_newgroups(int, gid_t *);
403 extern token_t *au_to_header(au_event_t, au_emod_t);
404 extern token_t *au_to_header_ex(au_event_t, au_emod_t);
405 extern token_t *au_to_in_addr(struct in_addr *);
406 extern token_t *au_to_in_addr_ex(struct in6_addr *);
407 extern token_t *au_to_ipc(char, int);
408 extern token_t *au_to_ipc_perm(struct ipc_perm *);
409 extern token_t *au_to_iport(ushort_t);
410 extern token_t *au_to_me(void);
411 extern token_t *au_to_mylabel(void);
412 extern token_t *au_to_opaque(char *, short);
413 extern token_t *au_to_path(char *);
414 extern token_t *au_to_privset(const char *, const priv_set_t *);
415 extern token_t *au_to_process(au_id_t, uid_t, gid_t, uid_t, gid_t,
416 				pid_t, au_asid_t, au_tid_t *);
417 extern token_t *au_to_process_ex(au_id_t, uid_t, gid_t, uid_t, gid_t,
418 				pid_t, au_asid_t, au_tid_addr_t *);
419 extern token_t *au_to_return32(char, uint32_t);
420 extern token_t *au_to_return64(char, uint64_t);
421 extern token_t *au_to_seq(int);
422 extern token_t *au_to_label(m_label_t *);
423 extern token_t *au_to_socket(struct oldsocket *);
424 extern token_t *au_to_subject(au_id_t, uid_t, gid_t, uid_t, gid_t,
425 				pid_t, au_asid_t, au_tid_t *);
426 extern token_t *au_to_subject_ex(au_id_t, uid_t, gid_t, uid_t, gid_t,
427 				pid_t, au_asid_t, au_tid_addr_t *);
428 extern token_t *au_to_text(char *);
429 extern token_t *au_to_tid(au_generic_tid_t *);
430 extern token_t *au_to_trailer(void);
431 extern token_t *au_to_uauth(char *);
432 extern token_t *au_to_upriv(char, char *);
433 extern token_t *au_to_xatom(char *);
434 extern token_t *au_to_xselect(char *, char *, char *);
435 extern token_t *au_to_xcolormap(int32_t, uid_t);
436 extern token_t *au_to_xcursor(int32_t, uid_t);
437 extern token_t *au_to_xfont(int32_t, uid_t);
438 extern token_t *au_to_xgc(int32_t, uid_t);
439 extern token_t *au_to_xpixmap(int32_t, uid_t);
440 extern token_t *au_to_xwindow(int32_t, uid_t);
441 extern token_t *au_to_xproperty(int32_t, uid_t, char *);
442 extern token_t *au_to_xclient(uint32_t);
443 extern token_t *au_to_zonename(char *);
444 #endif /* _KERNEL */
445 
446 #ifdef	_KERNEL
447 
448 void	adr_char(adr_t *, char *, int);
449 void	adr_int32(adr_t *, int32_t *, int);
450 void	adr_uint32(adr_t *, uint32_t *, int);
451 void	adr_int64(adr_t *, int64_t *, int);
452 void	adr_uint64(adr_t *, uint64_t *, int);
453 void	adr_short(adr_t *, short *, int);
454 void	adr_ushort(adr_t *, ushort_t *, int);
455 void	adr_start(adr_t *, char *);
456 
457 char	*adr_getchar(adr_t *, char *);
458 char	*adr_getshort(adr_t *, short  *);
459 char	*adr_getushort(adr_t *, ushort_t  *);
460 char	*adr_getint32(adr_t *, int32_t *);
461 char	*adr_getuint32(adr_t *, uint32_t *);
462 char	*adr_getint64(adr_t *, int64_t *);
463 char	*adr_getuint64(adr_t *, uint64_t *);
464 
465 int	adr_count(adr_t *);
466 
467 #endif	/* _KERNEL */
468 
469 #ifdef __cplusplus
470 }
471 #endif
472 
473 #endif /* _BSM_AUDIT_RECORD_H */
474