source/passdb/passgrp.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   4    Password and authentication handling
   5    Copyright (C) Jeremy Allison 1996-1998
   6    Copyright (C) Luke Kenneth Casson Leighton 1996-1998
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "nterr.h"
  25
  26 extern int DEBUGLEVEL;
  27
  28 /*
  29  * NOTE. All these functions are abstracted into a structure
  30  * that points to the correct function for the selected database. JRA.
  31  *
  32  * the API does NOT fill in the gaps if you set an API function
  33  * to NULL: it will deliberately attempt to call the NULL function.
  34  *
  35  */
  36
  37 static struct passgrp_ops *pwgrp_ops = NULL;
  38
  39 /***************************************************************
  40  Initialise the passgrp operations.
  41 ***************************************************************/
  42
  43 BOOL initialise_passgrp_db(void)
  44 {
  45   if (pwgrp_ops)
  46   {
  47     return True;
  48   }
  49
  50 #ifdef WITH_NISPLUS
  51   pwgrp_ops =  nisplus_initialise_password_grp();
  52 #elif defined(WITH_NT5LDAP)
  53   pwgrp_ops = nt5ldap_initialise_password_grp();
  54 #elif defined(WITH_LDAP)
  55   pwgrp_ops = ldap_initialise_password_grp();
  56 #elif defined(USE_SMBUNIX_DB)
  57   pwgrp_ops = unix_initialise_password_grp();
  58 #elif defined(USE_SMBPASS_DB)
  59   pwgrp_ops = file_initialise_password_grp();
  60 #endif
  61
  62   return (pwgrp_ops != NULL);
  63 }
  64
  65 /*
  66  * Functions that return/manipulate a struct smb_passwd.
  67  */
  68
  69 /************************************************************************
  70  Utility function to search smb passwd by rid.
  71 *************************************************************************/
  72
  73 struct smb_passwd *iterate_getsmbgrprid(uint32 user_rid,
  74                 uint32 **grps, int *num_grps,
  75                 uint32 **alss, int *num_alss)
  76 {
  77         struct smb_passwd *pwd = NULL;
  78         void *fp = NULL;
  79
  80         DEBUG(10, ("search by user_rid: 0x%x\n", user_rid));
  81
  82         /* Open the smb password database - not for update. */
  83         fp = startsmbgrpent(False);
  84
  85         if (fp == NULL)
  86         {
  87                 DEBUG(0, ("unable to open smb passgrp database.\n"));
  88                 return NULL;
  89         }
  90
  91         while ((pwd = getsmbgrpent(fp, grps, num_grps, alss, num_alss)) != NULL && pwd->user_rid != user_rid)
  92       ;
  93
  94         if (pwd != NULL)
  95         {
  96                 DEBUG(10, ("found by user_rid: 0x%x\n", user_rid));
  97         }
  98
  99         endsmbgrpent(fp);
 100         return pwd;
 101 }
 102
 103 /************************************************************************
 104  Utility function to search smb passwd by uid.  use this if your database
 105  does not have search facilities.
 106 *************************************************************************/
 107
 108 struct smb_passwd *iterate_getsmbgrpuid(uid_t unix_uid,
 109                 uint32 **grps, int *num_grps,
 110                 uint32 **alss, int *num_alss)
 111 {
 112         struct smb_passwd *pwd = NULL;
 113         void *fp = NULL;
 114
 115         DEBUG(10, ("search by unix_uid: %x\n", (int)unix_uid));
 116
 117         /* Open the smb password database - not for update. */
 118         fp = startsmbgrpent(False);
 119
 120         if (fp == NULL)
 121         {
 122                 DEBUG(0, ("unable to open smb passgrp database.\n"));
 123                 return NULL;
 124         }
 125
 126         while ((pwd = getsmbgrpent(fp, grps, num_grps, alss, num_alss)) != NULL && pwd->unix_uid != unix_uid)
 127       ;
 128
 129         if (pwd != NULL)
 130         {
 131                 DEBUG(10, ("found by unix_uid: %x\n", (int)unix_uid));
 132         }
 133
 134         endsmbgrpent(fp);
 135         return pwd;
 136 }
 137
 138 /************************************************************************
 139  Utility function to search smb passwd by name.  use this if your database
 140  does not have search facilities.
 141 *************************************************************************/
 142
 143 struct smb_passwd *iterate_getsmbgrpntnam(const char *nt_name,
 144                 uint32 **grps, int *num_grps,
 145                 uint32 **alss, int *num_alss)
 146 {
 147         struct smb_passwd *pwd = NULL;
 148         fstring name;
 149         void *fp = NULL;
 150         fstrcpy(name, nt_name);
 151
 152         DEBUG(10, ("search by name: %s\n", name));
 153
 154         /* Open the passgrp file - not for update. */
 155         fp = startsmbgrpent(False);
 156
 157         if (fp == NULL)
 158         {
 159                 DEBUG(0, ("unable to open smb passgrp database.\n"));
 160                 return NULL;
 161         }
 162
 163         while ((pwd = getsmbgrpent(fp, grps, num_grps, alss, num_alss)) != NULL && !strequal(pwd->nt_name, name))
 164       ;
 165
 166         if (pwd != NULL)
 167         {
 168                 DEBUG(10, ("found by name: %s\n", name));
 169         }
 170
 171         endsmbgrpent(fp);
 172         return pwd;
 173 }
 174
 175 /***************************************************************
 176  Start to enumerate the smb or sam passwd list. Returns a void pointer
 177  to ensure no modification outside this module.
 178
 179  Note that currently it is being assumed that a pointer returned
 180  from this function may be used to enumerate struct sam_passwd
 181  entries as well as struct smb_passwd entries. This may need
 182  to change. JRA.
 183
 184 ****************************************************************/
 185
 186 void *startsmbgrpent(BOOL update)
 187 {
 188   return pwgrp_ops->startsmbgrpent(update);
 189 }
 190
 191 /***************************************************************
 192  End enumeration of the smb or sam passwd list.
 193
 194  Note that currently it is being assumed that a pointer returned
 195  from this function may be used to enumerate struct sam_passwd
 196  entries as well as struct smb_passwd entries. This may need
 197  to change. JRA.
 198
 199 ****************************************************************/
 200
 201 void endsmbgrpent(void *vp)
 202 {
 203   pwgrp_ops->endsmbgrpent(vp);
 204 }
 205
 206 /*************************************************************************
 207  Routine to return the next entry in the smb passwd list.
 208  *************************************************************************/
 209
 210 struct smb_passwd *getsmbgrpent(void *vp,
 211                 uint32 **grps, int *num_grps,
 212                 uint32 **alss, int *num_alss)
 213 {
 214         return pwgrp_ops->getsmbgrpent(vp, grps, num_grps, alss, num_alss);
 215 }
 216
 217 /************************************************************************
 218  Routine to search smb passwd by name.
 219 *************************************************************************/
 220
 221 struct smb_passwd *getsmbgrpntnam(char *name,
 222                 uint32 **grps, int *num_grps,
 223                 uint32 **alss, int *num_alss)
 224 {
 225         return pwgrp_ops->getsmbgrpntnam(name, grps, num_grps, alss, num_alss);
 226 }
 227
 228 /************************************************************************
 229  Routine to search smb passwd by user rid.
 230 *************************************************************************/
 231
 232 struct smb_passwd *getsmbgrprid(uint32 user_rid,
 233                 uint32 **grps, int *num_grps,
 234                 uint32 **alss, int *num_alss)
 235 {
 236         return pwgrp_ops->getsmbgrprid(user_rid, grps, num_grps, alss, num_alss);
 237 }
 238
 239 /************************************************************************
 240  Routine to search smb passwd by uid.
 241 *************************************************************************/
 242
 243 struct smb_passwd *getsmbgrpuid(uid_t unix_uid,
 244                 uint32 **grps, int *num_grps,
 245                 uint32 **alss, int *num_alss)
 246 {
 247         return pwgrp_ops->getsmbgrpuid(unix_uid, grps, num_grps, alss, num_alss);
 248 }
 249