git.sur5r.net Git - openldap/blob - servers/slapd/backend.c

   1 /* backend.c - routines for dealing with back-end databases */
   2
   3
   4 #include <stdio.h>
   5 #include <string.h>
   6 #include <sys/types.h>
   7 #include <sys/socket.h>
   8 #include <sys/stat.h>
   9 #include "slap.h"
  10
  11 #ifdef LDAP_LDBM
  12 extern int      ldbm_back_bind();
  13 extern int      ldbm_back_unbind();
  14 extern int      ldbm_back_search();
  15 extern int      ldbm_back_compare();
  16 extern int      ldbm_back_modify();
  17 extern int      ldbm_back_modrdn();
  18 extern int      ldbm_back_add();
  19 extern int      ldbm_back_delete();
  20 extern int      ldbm_back_abandon();
  21 extern int      ldbm_back_config();
  22 extern int      ldbm_back_init();
  23 extern int      ldbm_back_close();
  24 #endif
  25
  26 #ifdef LDAP_PASSWD
  27 extern int      passwd_back_search();
  28 extern int      passwd_back_config();
  29 #endif
  30
  31 #ifdef LDAP_SHELL
  32 extern int      shell_back_bind();
  33 extern int      shell_back_unbind();
  34 extern int      shell_back_search();
  35 extern int      shell_back_compare();
  36 extern int      shell_back_modify();
  37 extern int      shell_back_modrdn();
  38 extern int      shell_back_add();
  39 extern int      shell_back_delete();
  40 extern int      shell_back_abandon();
  41 extern int      shell_back_config();
  42 extern int      shell_back_init();
  43 #endif
  44
  45 extern int      defsize;
  46 extern int      deftime;
  47
  48 #define BACKEND_GRAB_SIZE       10
  49
  50 int             nbackends;
  51 Backend         *backends;
  52 static int      maxbackends;
  53
  54 Backend *
  55 new_backend(
  56     char        *type
  57 )
  58 {
  59         Backend *be;
  60         int     foundit;
  61
  62         if ( nbackends == maxbackends ) {
  63                 maxbackends += BACKEND_GRAB_SIZE;
  64                 backends = (Backend *) ch_realloc( (char *) backends,
  65                     maxbackends * sizeof(Backend) );
  66                 memset( &backends[nbackends], '\0', BACKEND_GRAB_SIZE *
  67                     sizeof(Backend) );
  68         }
  69
  70         be = &backends[nbackends++];
  71         be->be_sizelimit = defsize;
  72         be->be_timelimit = deftime;
  73         foundit = 0;
  74
  75 #ifdef LDAP_LDBM
  76         if ( strcasecmp( type, "ldbm" ) == 0 ) {
  77                 be->be_bind = ldbm_back_bind;
  78                 be->be_unbind = ldbm_back_unbind;
  79                 be->be_search = ldbm_back_search;
  80                 be->be_compare = ldbm_back_compare;
  81                 be->be_modify = ldbm_back_modify;
  82                 be->be_modrdn = ldbm_back_modrdn;
  83                 be->be_add = ldbm_back_add;
  84                 be->be_delete = ldbm_back_delete;
  85                 be->be_abandon = ldbm_back_abandon;
  86                 be->be_config = ldbm_back_config;
  87                 be->be_init = ldbm_back_init;
  88                 be->be_close = ldbm_back_close;
  89                 be->be_type = "ldbm";
  90                 foundit = 1;
  91         }
  92 #endif
  93
  94 #ifdef LDAP_PASSWD
  95         if ( strcasecmp( type, "passwd" ) == 0 ) {
  96                 be->be_bind = NULL;
  97                 be->be_unbind = NULL;
  98                 be->be_search = passwd_back_search;
  99                 be->be_compare = NULL;
 100                 be->be_modify = NULL;
 101                 be->be_modrdn = NULL;
 102                 be->be_add = NULL;
 103                 be->be_delete = NULL;
 104                 be->be_abandon = NULL;
 105                 be->be_config = passwd_back_config;
 106                 be->be_init = NULL;
 107                 be->be_close = NULL;
 108                 be->be_type = "passwd";
 109                 foundit = 1;
 110         }
 111 #endif
 112
 113 #ifdef LDAP_SHELL
 114         if ( strcasecmp( type, "shell" ) == 0 ) {
 115                 be->be_bind = shell_back_bind;
 116                 be->be_unbind = shell_back_unbind;
 117                 be->be_search = shell_back_search;
 118                 be->be_compare = shell_back_compare;
 119                 be->be_modify = shell_back_modify;
 120                 be->be_modrdn = shell_back_modrdn;
 121                 be->be_add = shell_back_add;
 122                 be->be_delete = shell_back_delete;
 123                 be->be_abandon = shell_back_abandon;
 124                 be->be_config = shell_back_config;
 125                 be->be_init = shell_back_init;
 126                 be->be_close = NULL;
 127                 be->be_type = "shell";
 128                 foundit = 1;
 129         }
 130 #endif
 131
 132         if ( be->be_init != NULL ) {
 133                 (*be->be_init)( be );
 134         }
 135
 136         if ( foundit == 0 ) {
 137                 fprintf( stderr, "Unrecognized database type (%s)\n", type );
 138                 exit( 1 );
 139         }
 140
 141         return( be );
 142 }
 143
 144 Backend *
 145 select_backend( char * dn )
 146 {
 147         int     i, j, len, dnlen;
 148
 149         dnlen = strlen( dn );
 150         for ( i = 0; i < nbackends; i++ ) {
 151                 for ( j = 0; backends[i].be_suffix != NULL &&
 152                     backends[i].be_suffix[j] != NULL; j++ ) {
 153                         len = strlen( backends[i].be_suffix[j] );
 154
 155                         if ( len > dnlen ) {
 156                                 continue;
 157                         }
 158
 159                         if ( strcasecmp( backends[i].be_suffix[j],
 160                             dn + (dnlen - len) ) == 0 ) {
 161                                 return( &backends[i] );
 162                         }
 163                 }
 164         }
 165
 166         return( NULL );
 167 }
 168
 169 int
 170 be_issuffix(
 171     Backend     *be,
 172     char        *suffix
 173 )
 174 {
 175         int     i;
 176
 177         for ( i = 0; be->be_suffix != NULL && be->be_suffix[i] != NULL; i++ ) {
 178                 if ( strcasecmp( be->be_suffix[i], suffix ) == 0 ) {
 179                         return( 1 );
 180                 }
 181         }
 182
 183         return( 0 );
 184 }
 185
 186 int
 187 be_isroot( Backend *be, char *dn )
 188 {
 189         if ( dn == NULL ) {
 190                 return( 0 );
 191         }
 192
 193         return( be->be_rootdn ? strcasecmp( be->be_rootdn, dn ) == 0
 194             : 0 );
 195 }
 196
 197 int
 198 be_isroot_pw( Backend *be, char *dn, struct berval *cred )
 199 {
 200         if ( ! be_isroot( be, dn ) || be->be_rootpw == NULL ) {
 201                 return( 0 );
 202         }
 203
 204         return( strcmp( be->be_rootpw, cred->bv_val ) == 0 );
 205 }
 206
 207 void
 208 be_close()
 209 {
 210         int     i;
 211
 212         for ( i = 0; i < nbackends; i++ ) {
 213                 if ( backends[i].be_close != NULL ) {
 214                         (*backends[i].be_close)( &backends[i] );
 215                 }
 216         }
 217 }
 218
 219
 220 void
 221 be_unbind(
 222         Connection   *conn,
 223         Operation    *op
 224 )
 225 {
 226         int     i;
 227
 228         for ( i = 0; i < nbackends; i++ ) {
 229                 if ( backends[i].be_unbind != NULL ) {
 230                         (*backends[i].be_unbind)( &backends[i], conn, op );
 231                 }
 232         }
 233 }