usr/src/cmd/nscd/nscd_door.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 /*
  23  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  * Copyright 2012 Milan Jurik. All rights reserved.
  26  */
  27
  28 #ifndef _NSCD_DOOR_H
  29 #define _NSCD_DOOR_H
  30
  31 /*
  32  * Definitions for nscd to nscd door interfaces
  33  */
  34
  35 #ifdef  __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 #include <alloca.h>
  40 #include <nss_dbdefs.h>
  41
  42 /* door for Trusted Extensions */
  43 #define TSOL_NAME_SERVICE_DOOR  "/var/tsol/doors/name_service_door"
  44 /* TX per label nscd indication file */
  45 #define TSOL_NSCD_PER_LABEL_FILE "/var/tsol/doors/nscd_per_label"
  46
  47 /* nscd v2 nscd -> nscd call numbers */
  48 #define NSCD_PING       (NSCD_CALLCAT_N2N|0x01)
  49 #define NSCD_GETADMIN   (NSCD_CALLCAT_N2N|0x02)
  50 #define NSCD_SETADMIN   (NSCD_CALLCAT_N2N|0x03)
  51 #define NSCD_GETPUADMIN (NSCD_CALLCAT_N2N|0x04)
  52 #define NSCD_SETPUADMIN (NSCD_CALLCAT_N2N|0x05)
  53 #define NSCD_KILLSERVER (NSCD_CALLCAT_N2N|0x06)
  54
  55 #define NSCD_IMHERE     (NSCD_CALLCAT_N2N|0x10) /* IMHERE+WHOAMI */
  56 #define NSCD_FORK       (NSCD_CALLCAT_N2N|0x20)
  57 #define NSCD_SETUID     (NSCD_CALLCAT_N2N|0x30)
  58 #define NSCD_KILL       (NSCD_CALLCAT_N2N|0x40)
  59 #define NSCD_PULSE      (NSCD_CALLCAT_N2N|0x50)
  60 #define NSCD_REFRESH    (NSCD_CALLCAT_N2N|0x60)
  61
  62 /* nscd v2 nscd identities */
  63
  64 #define NSCD_MAIN       0x00000001
  65 #define NSCD_FORKER     0x00000002
  66 #define NSCD_CHILD      0x00000004
  67 #define NSCD_WHOAMI     0x0000000F
  68
  69 #define NSCD_ALLOC_DOORBUF(cn, dsz, uptr, usz) \
  70         usz = (sizeof (nss_pheader_t) + (dsz)); \
  71         uptr = alloca(usz); \
  72         (void) memset(uptr, 0, usz); \
  73         ((nss_pheader_t *)uptr)->nsc_callnumber = (cn); \
  74         ((nss_pheader_t *)uptr)->p_version = NSCD_HEADER_REV; \
  75         ((nss_pheader_t *)uptr)->pbufsiz = usz; \
  76         ((nss_pheader_t *)uptr)->data_off = sizeof (nss_pheader_t); \
  77         ((nss_pheader_t *)uptr)->key_off = sizeof (nss_pheader_t); \
  78         ((nss_pheader_t *)uptr)->dbd_off = sizeof (nss_pheader_t); \
  79         ((nss_pheader_t *)uptr)->data_len = dsz;
  80
  81 #define NSCD_N2N_DOOR_DATA(type, buf) \
  82         (type *)((void *)(((char *)(buf)) + sizeof (nss_pheader_t)))
  83
  84 #define NSCD_N2N_DOOR_BUF_SIZE(struct) \
  85         sizeof (nss_pheader_t) + sizeof (struct)
  86
  87 #define NSCD_SET_STATUS(ph, st, errno) \
  88         { \
  89                 int     e = errno; \
  90                 (ph)->p_status = st; \
  91                 if (e != -1) \
  92                         (ph)->p_errno = e; \
  93         }
  94
  95 #define NSCD_SET_HERRNO(ph, herrno) \
  96         (ph)->p_herrno = herrno;
  97
  98
  99 #define NSCD_SET_STATUS_SUCCESS(ph) \
 100         (ph)->p_status = NSS_SUCCESS; \
 101         (ph)->p_errno = 0;
 102
 103 #define NSCD_SET_N2N_STATUS(ph, st, errno, n2nst) \
 104         { \
 105                 int     e = errno; \
 106                 (ph)->p_status = st; \
 107                 if (e != -1) \
 108                         (ph)->p_errno = e; \
 109                 (ph)->nscdpriv = n2nst; \
 110         }
 111
 112 #define NSCD_STATUS_IS_OK(ph) \
 113         (((ph)->p_status) == NSS_SUCCESS)
 114
 115 #define NSCD_STATUS_IS_NOT_OK(ph) \
 116         (((ph)->p_status) != NSS_SUCCESS)
 117
 118 #define NSCD_GET_STATUS(ph) \
 119         (((nss_pheader_t *)(ph))->p_status)
 120
 121 #define NSCD_GET_ERRNO(ph) \
 122         (((nss_pheader_t *)(ph))->p_errno)
 123
 124 #define NSCD_GET_HERRNO(ph) \
 125         (((nss_pheader_t *)(ph))->p_herrno)
 126
 127 #define NSCD_GET_NSCD_STATUS(ph) \
 128         (((nss_pheader_t *)(ph))->nscdpriv)
 129
 130 #define NSCD_CLEAR_STATUS(ph) \
 131         (ph)->p_status = 0; \
 132         (ph)->p_errno = 0; \
 133         (ph)->nscdpriv = 0;
 134
 135 #define NSCD_COPY_STATUS(ph, ph1) \
 136         (ph)->p_status = (ph1)->p_status; \
 137         (ph)->p_errno = (ph1)->p_errno; \
 138         (ph)->nscdpriv = (ph1)->nscdpriv;
 139
 140 nss_status_t    _nscd_doorcall(int callnum);
 141 nss_status_t    _nscd_doorcall_data(int callnum, void *indata,
 142                         int indlen, void *outdata, int outdlen,
 143                         nss_pheader_t *phdr);
 144
 145 nss_status_t     _nscd_doorcall_fd(int fd, int callnum, void *indata,
 146                         int indlen, void *outdata, int outdlen,
 147                         nss_pheader_t *phdr);
 148
 149 nss_status_t    _nscd_doorcall_sendfd(int fd, int callnum,
 150                         void *indata, int indlen, nss_pheader_t *phdr);
 151
 152 #ifdef  __cplusplus
 153 }
 154 #endif
 155
 156 #endif  /* _NSCD_DOOR_H */