usr/src/uts/common/sys/klpd.h

   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 (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  23  */
  24
  25 #ifndef _SYS_KLPD_H
  26 #define _SYS_KLPD_H
  27
  28 #include <sys/types.h>
  29 #include <sys/priv.h>
  30 #include <sys/procset.h>
  31
  32 #ifdef _KERNEL
  33 #include <sys/cred.h>
  34 #include <sys/sysmacros.h>
  35 #include <sys/varargs.h>
  36 #endif
  37
  38 #ifdef  __cplusplus
  39 extern "C" {
  40 #endif
  41
  42 #define KLPDCALL_VERS           1
  43
  44 #define KLPDARG_NOMORE          0               /* End of argument List */
  45 #define KLPDARG_NONE            0               /* No argument */
  46 #define KLPDARG_VNODE           1               /* vnode_t * */
  47 #define KLPDARG_INT             2               /* int */
  48 #define KLPDARG_PORT            3               /* int, port number */
  49 #define KLPDARG_TCPPORT         4               /* int, tcp port number */
  50 #define KLPDARG_UDPPORT         5               /* int, udp port number */
  51 #define KLPDARG_SCTPPORT        6               /* int, sctp port number */
  52 #define KLPDARG_SDPPORT         7               /* int, sdp port number */
  53
  54 #ifdef _KERNEL
  55
  56 struct klpd_reg;
  57 struct credklpd;
  58
  59 int klpd_reg(int, idtype_t, id_t, priv_set_t *);
  60 int klpd_unreg(int, idtype_t, id_t);
  61 void klpd_freelist(struct klpd_reg **);
  62 void klpd_rele(struct klpd_reg *);
  63 int klpd_call(const cred_t *, const priv_set_t *, va_list);
  64 void crklpd_hold(struct credklpd *);
  65 void crklpd_rele(struct credklpd *);
  66 int pfexec_reg(int);
  67 int pfexec_unreg(int);
  68 int pfexec_call(const cred_t *, struct pathname *, cred_t **, boolean_t *);
  69 int get_forced_privs(const cred_t *, const char *, priv_set_t *);
  70 int check_user_privs(const cred_t *, const priv_set_t *);
  71
  72 #endif /* _KERNEL */
  73
  74 typedef struct klpd_head {
  75         uint32_t        klh_vers;               /* Version */
  76         uint32_t        klh_len;                /* Length of full packet */
  77         uint32_t        klh_argoff;             /* Offset of argument */
  78         uint32_t        klh_privoff;            /* Offset of privilege set */
  79 } klpd_head_t;
  80
  81 #define KLH_PRIVSET(kh) ((priv_set_t *)(((kh)->klh_privoff == 0 ? NULL : \
  82                         (char *)(kh) + (kh)->klh_privoff)))
  83 #define KLH_ARG(kh)     ((void *)((kh)->klh_argoff != 0 ? \
  84                         (char *)(kh) + (kh)->klh_argoff : NULL))
  85
  86 typedef struct klpd_arg {
  87         uint_t  kla_type;
  88         uint_t  kla_dlen;
  89         union {
  90                 char    __cdata[1];
  91                 int     __idata;
  92                 uint_t  __uidata;
  93         } kla_data;
  94 } klpd_arg_t;
  95
  96 #define kla_str         kla_data.__cdata
  97 #define kla_int         kla_data.__idata
  98 #define kla_uint        kla_data.__uidata
  99
 100 #define PFEXEC_ARG_VERS                 0x1
 101 #define PFEXEC_EXEC_ATTRS               0x1     /* pfexec_reply_t */
 102 #define PFEXEC_FORCED_PRIVS             0x2     /* priv_set_t */
 103 #define PFEXEC_USER_PRIVS               0x3     /* uint32_t */
 104
 105 #define PFEXEC_ARG_SIZE(bufsize)        \
 106         (offsetof(pfexec_arg_t, pfa_data) + (bufsize))
 107
 108 typedef struct pfexec_arg {
 109         uint_t  pfa_vers;               /* Caller version */
 110         uint_t  pfa_call;               /* Call type */
 111         uint_t  pfa_len;                /* Length of data */
 112         uid_t   pfa_uid;                /* Real uid of subject */
 113         union {
 114                 char            __pfa_path[1];
 115                 uint32_t        __pfa_buf[1];
 116         } pfa_data;
 117 } pfexec_arg_t;
 118
 119 #define pfa_path        pfa_data.__pfa_path
 120 #define pfa_buf         pfa_data.__pfa_buf
 121
 122 #define PFEXEC_NOTSET           ((uid_t)-1)
 123
 124 typedef struct pfexec_reply {
 125         uint_t          pfr_vers;
 126         uint_t          pfr_len;
 127         uid_t           pfr_ruid, pfr_euid;
 128         gid_t           pfr_rgid, pfr_egid;
 129         boolean_t       pfr_setcred;
 130         boolean_t       pfr_scrubenv;
 131         boolean_t       pfr_clearflag;
 132         boolean_t       pfr_allowed;
 133         uint_t          pfr_ioff;
 134         uint_t          pfr_loff;
 135 } pfexec_reply_t;
 136
 137 #define PFEXEC_REPLY_IPRIV(pfr) \
 138         ((pfr)->pfr_ioff ? (priv_set_t *)((char *)(pfr) + (pfr)->pfr_ioff) \
 139         :  (priv_set_t *)0)
 140 #define PFEXEC_REPLY_LPRIV(pfr) \
 141         ((pfr)->pfr_loff ? (priv_set_t *)((char *)(pfr) + (pfr)->pfr_loff) \
 142         :  (priv_set_t *)0)
 143
 144 #ifdef  __cplusplus
 145 }
 146 #endif
 147
 148 #endif  /* _SYS_KLPD_H */