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 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 * 25 * File with private definitions for the ucred structure for use by the 26 * kernel and library routines. 27 */ 28 29 #ifndef _SYS_UCRED_H 30 #define _SYS_UCRED_H 31 32 #pragma ident "%Z%%M% %I% %E% SMI" 33 34 #include <sys/types.h> 35 #include <sys/procfs.h> 36 #include <sys/cred.h> 37 #include <sys/priv.h> 38 #include <sys/tsol/label.h> 39 #include <sys/tsol/label_macro.h> 40 41 #ifdef _KERNEL 42 #include <c2/audit.h> 43 #else 44 #include <bsm/audit.h> 45 #endif 46 47 #ifndef _KERNEL 48 #include <unistd.h> 49 #endif 50 51 #ifdef __cplusplus 52 extern "C" { 53 #endif 54 55 56 57 #if defined(_KERNEL) || _STRUCTURED_PROC != 0 58 /* 59 * bitness neutral struct 60 * 61 * Add new fixed fields at the end of the structure. 62 */ 63 struct ucred_s { 64 uint32_t uc_size; /* Size of the full structure */ 65 uint32_t uc_credoff; /* Credential offset: 0 - no cred */ 66 uint32_t uc_privoff; /* Privilege offset: 0 - no privs */ 67 pid_t uc_pid; /* Process id */ 68 uint32_t uc_audoff; /* Audit info offset: 0 - no aud */ 69 zoneid_t uc_zoneid; /* Zone id */ 70 projid_t uc_projid; /* Project id */ 71 uint32_t uc_labeloff; /* label offset: 0 - no label */ 72 /* The rest goes here */ 73 }; 74 75 /* Get the process credentials */ 76 #define UCCRED(uc) (prcred_t *)(((uc)->uc_credoff == 0) ? NULL : \ 77 ((char *)(uc)) + (uc)->uc_credoff) 78 79 /* Get the process privileges */ 80 #define UCPRIV(uc) (prpriv_t *)(((uc)->uc_privoff == 0) ? NULL : \ 81 ((char *)(uc)) + (uc)->uc_privoff) 82 83 /* Get the process audit info */ 84 #define UCAUD(uc) (auditinfo64_addr_t *)(((uc)->uc_audoff == 0) ? NULL : \ 85 ((char *)(uc)) + (uc)->uc_audoff) 86 87 /* Get peer security label info */ 88 #define UCLABEL(uc) (bslabel_t *)(((uc)->uc_labeloff == 0) ? NULL : \ 89 ((char *)(uc)) + (uc)->uc_labeloff) 90 91 #define UCRED_CRED_OFF (sizeof (struct ucred_s)) 92 93 #endif /* _KERNEL || _STRUCTURED_PROC != 0 */ 94 95 /* 96 * SYS_ucredsys subcodes. 97 */ 98 #define UCREDSYS_UCREDGET 0 99 #define UCREDSYS_GETPEERUCRED 1 100 101 #ifdef _KERNEL 102 103 extern uint32_t ucredsize; 104 105 #define UCRED_PRIV_OFF (UCRED_CRED_OFF + sizeof (prcred_t) + \ 106 (ngroups_max - 1) * sizeof (gid_t)) 107 #define UCRED_AUD_OFF (UCRED_PRIV_OFF + priv_prgetprivsize(NULL)) 108 #define UCRED_LABEL_OFF (UCRED_AUD_OFF + get_audit_ucrsize()) 109 #define UCRED_SIZE (UCRED_LABEL_OFF + sizeof (bslabel_t)) 110 111 struct proc; 112 113 extern struct ucred_s *pgetucred(struct proc *); 114 extern struct ucred_s *cred2ucred(const cred_t *, pid_t, void *, 115 const cred_t *); 116 extern int get_audit_ucrsize(void); 117 118 #else 119 120 /* Definition only valid for structured proc. */ 121 #if _STRUCTURED_PROC != 0 122 #define UCRED_SIZE(ip) (sizeof (struct ucred_s) + sizeof (prcred_t) + \ 123 ((int)sysconf(_SC_NGROUPS_MAX) - 1) * sizeof (gid_t) + \ 124 sizeof (prpriv_t) + \ 125 sizeof (priv_chunk_t) * \ 126 ((ip)->priv_setsize * (ip)->priv_nsets - 1) + \ 127 (ip)->priv_infosize + \ 128 sizeof (auditinfo64_addr_t) + \ 129 sizeof (bslabel_t)) 130 #endif 131 132 extern struct ucred_s *_ucred_alloc(void); 133 134 #endif 135 136 #ifdef __cplusplus 137 } 138 #endif 139 140 #endif /* _SYS_UCRED_H */ 141