xref: /onnv-gate/usr/src/uts/common/sys/ucred.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  *
26*0Sstevel@tonic-gate  * File with private definitions for the ucred structure for use by the
27*0Sstevel@tonic-gate  * kernel and library routines.
28*0Sstevel@tonic-gate  */
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate #ifndef	_SYS_UCRED_H
31*0Sstevel@tonic-gate #define	_SYS_UCRED_H
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate #include <sys/types.h>
36*0Sstevel@tonic-gate #include <sys/procfs.h>
37*0Sstevel@tonic-gate #include <sys/cred.h>
38*0Sstevel@tonic-gate #include <sys/priv.h>
39*0Sstevel@tonic-gate 
40*0Sstevel@tonic-gate #ifdef _KERNEL
41*0Sstevel@tonic-gate #include <c2/audit.h>
42*0Sstevel@tonic-gate #else
43*0Sstevel@tonic-gate #include <bsm/audit.h>
44*0Sstevel@tonic-gate #endif
45*0Sstevel@tonic-gate 
46*0Sstevel@tonic-gate #ifndef _KERNEL
47*0Sstevel@tonic-gate #include <unistd.h>
48*0Sstevel@tonic-gate #endif
49*0Sstevel@tonic-gate 
50*0Sstevel@tonic-gate #ifdef	__cplusplus
51*0Sstevel@tonic-gate extern "C" {
52*0Sstevel@tonic-gate #endif
53*0Sstevel@tonic-gate 
54*0Sstevel@tonic-gate 
55*0Sstevel@tonic-gate 
56*0Sstevel@tonic-gate #if defined(_KERNEL) || _STRUCTURED_PROC != 0
57*0Sstevel@tonic-gate /*
58*0Sstevel@tonic-gate  * bitness neutral struct
59*0Sstevel@tonic-gate  *
60*0Sstevel@tonic-gate  * Add new fixed fields at the end of the structure.
61*0Sstevel@tonic-gate  */
62*0Sstevel@tonic-gate struct ucred_s {
63*0Sstevel@tonic-gate 	uint32_t	uc_size;	/* Size of the full structure */
64*0Sstevel@tonic-gate 	uint32_t	uc_credoff;	/* Credential offset: 0 - no cred */
65*0Sstevel@tonic-gate 	uint32_t	uc_privoff;	/* Privilege offset: 0 - no privs */
66*0Sstevel@tonic-gate 	pid_t		uc_pid;		/* Process id */
67*0Sstevel@tonic-gate 	uint32_t	uc_audoff;	/* Audit info offset: 0 - no aud */
68*0Sstevel@tonic-gate 	zoneid_t	uc_zoneid;	/* Zone id */
69*0Sstevel@tonic-gate 	projid_t	uc_projid;	/* Project id */
70*0Sstevel@tonic-gate 					/* The rest goes here */
71*0Sstevel@tonic-gate };
72*0Sstevel@tonic-gate 
73*0Sstevel@tonic-gate /* Get the process credentials */
74*0Sstevel@tonic-gate #define	UCCRED(uc)	(prcred_t *)(((uc)->uc_credoff == 0) ? NULL : \
75*0Sstevel@tonic-gate 				((char *)(uc)) + (uc)->uc_credoff)
76*0Sstevel@tonic-gate 
77*0Sstevel@tonic-gate /* Get the process privileges */
78*0Sstevel@tonic-gate #define	UCPRIV(uc)	(prpriv_t *)(((uc)->uc_privoff == 0) ? NULL : \
79*0Sstevel@tonic-gate 				((char *)(uc)) + (uc)->uc_privoff)
80*0Sstevel@tonic-gate 
81*0Sstevel@tonic-gate /* Get the process audit info */
82*0Sstevel@tonic-gate #define	UCAUD(uc)	(auditinfo64_addr_t *)(((uc)->uc_audoff == 0) ? NULL : \
83*0Sstevel@tonic-gate 				((char *)(uc)) + (uc)->uc_audoff)
84*0Sstevel@tonic-gate 
85*0Sstevel@tonic-gate #define	UCRED_CRED_OFF	(sizeof (struct ucred_s))
86*0Sstevel@tonic-gate 
87*0Sstevel@tonic-gate #endif /* _KERNEL || _STRUCTURED_PROC != 0 */
88*0Sstevel@tonic-gate 
89*0Sstevel@tonic-gate /*
90*0Sstevel@tonic-gate  * SYS_ucredsys subcodes.
91*0Sstevel@tonic-gate  */
92*0Sstevel@tonic-gate #define	UCREDSYS_UCREDGET	0
93*0Sstevel@tonic-gate #define	UCREDSYS_GETPEERUCRED	1
94*0Sstevel@tonic-gate 
95*0Sstevel@tonic-gate #ifdef _KERNEL
96*0Sstevel@tonic-gate 
97*0Sstevel@tonic-gate extern uint32_t ucredsize;
98*0Sstevel@tonic-gate 
99*0Sstevel@tonic-gate #define	UCRED_PRIV_OFF	(UCRED_CRED_OFF + sizeof (prcred_t) + \
100*0Sstevel@tonic-gate 			    (ngroups_max - 1) * sizeof (gid_t))
101*0Sstevel@tonic-gate #define	UCRED_AUD_OFF	(UCRED_PRIV_OFF + priv_prgetprivsize(NULL))
102*0Sstevel@tonic-gate #define	UCRED_SIZE	(UCRED_AUD_OFF + get_audit_ucrsize())
103*0Sstevel@tonic-gate 
104*0Sstevel@tonic-gate struct proc;
105*0Sstevel@tonic-gate 
106*0Sstevel@tonic-gate extern struct ucred_s *pgetucred(struct proc *);
107*0Sstevel@tonic-gate extern struct ucred_s *cred2ucred(const cred_t *, pid_t, void *);
108*0Sstevel@tonic-gate extern int get_audit_ucrsize(void);
109*0Sstevel@tonic-gate 
110*0Sstevel@tonic-gate #else
111*0Sstevel@tonic-gate 
112*0Sstevel@tonic-gate /* Definition only valid for structured proc. */
113*0Sstevel@tonic-gate #if _STRUCTURED_PROC != 0
114*0Sstevel@tonic-gate #define	UCRED_SIZE(ip)	(sizeof (struct ucred_s) + sizeof (prcred_t) + \
115*0Sstevel@tonic-gate 			((int)sysconf(_SC_NGROUPS_MAX) - 1) * sizeof (gid_t) + \
116*0Sstevel@tonic-gate 			sizeof (prpriv_t) + \
117*0Sstevel@tonic-gate 			sizeof (priv_chunk_t) * \
118*0Sstevel@tonic-gate 			((ip)->priv_setsize * (ip)->priv_nsets - 1) + \
119*0Sstevel@tonic-gate 			(ip)->priv_infosize + \
120*0Sstevel@tonic-gate 			sizeof (auditinfo64_addr_t))
121*0Sstevel@tonic-gate #endif
122*0Sstevel@tonic-gate 
123*0Sstevel@tonic-gate extern struct ucred_s *_ucred_alloc(void);
124*0Sstevel@tonic-gate 
125*0Sstevel@tonic-gate #endif
126*0Sstevel@tonic-gate 
127*0Sstevel@tonic-gate #ifdef	__cplusplus
128*0Sstevel@tonic-gate }
129*0Sstevel@tonic-gate #endif
130*0Sstevel@tonic-gate 
131*0Sstevel@tonic-gate #endif	/* _SYS_UCRED_H */
132