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

   1 /* repl.c - log modifications for replication purposes */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/string.h>
  13 #include <ac/ctype.h>
  14 #include <ac/socket.h>
  15
  16 #ifdef HAVE_SYS_FILE_H
  17 #include <sys/file.h>
  18 #endif
  19
  20 #include "slap.h"
  21
  22 int
  23 add_replica_info(
  24     Backend     *be,
  25     const char  *host
  26 )
  27 {
  28         int i = 0;
  29
  30         assert( be );
  31         assert( host );
  32
  33         if ( be->be_replica != NULL ) {
  34                 for ( ; be->be_replica[ i ] != NULL; i++ );
  35         }
  36
  37         be->be_replica = ch_realloc( be->be_replica,
  38                 sizeof( struct slap_replica_info * )*( i + 2 ) );
  39
  40         be->be_replica[ i ]
  41                 = ch_calloc( sizeof( struct slap_replica_info ), 1 );
  42         be->be_replica[ i ]->ri_host = ch_strdup( host );
  43         be->be_replica[ i + 1 ] = NULL;
  44
  45         return( i );
  46 }
  47
  48 void
  49 replog(
  50     Backend     *be,
  51     Operation *op,
  52     char        *dn,
  53     void        *change
  54 )
  55 {
  56         Modifications   *ml;
  57         Entry   *e;
  58         struct replog_moddn *moddn;
  59         char *tmp;
  60         FILE    *fp, *lfp;
  61         int     len, i;
  62 /* undef NO_LOG_WHEN_NO_REPLICAS */
  63 #ifdef NO_LOG_WHEN_NO_REPLICAS
  64         int     count = 0;
  65 #endif
  66
  67         if ( be->be_replogfile == NULL && replogfile == NULL ) {
  68                 return;
  69         }
  70
  71         ldap_pvt_thread_mutex_lock( &replog_mutex );
  72         if ( (fp = lock_fopen( be->be_replogfile ? be->be_replogfile :
  73             replogfile, "a", &lfp )) == NULL ) {
  74                 ldap_pvt_thread_mutex_unlock( &replog_mutex );
  75                 return;
  76         }
  77
  78         tmp = ch_strdup( dn );
  79         if ( dn_normalize( tmp ) == NULL ) {
  80                 /* something has gone really bad */
  81                 ch_free( tmp );
  82
  83                 lock_fclose( fp, lfp );
  84                 ldap_pvt_thread_mutex_unlock( &replog_mutex );
  85                 return;
  86         }
  87
  88         for ( i = 0; be->be_replica != NULL && be->be_replica[i] != NULL;
  89             i++ ) {
  90                 /* check if dn's suffix matches legal suffixes, if any */
  91                 if ( be->be_replica[i]->ri_nsuffix != NULL ) {
  92                         int j;
  93
  94                         for ( j = 0; be->be_replica[i]->ri_nsuffix[j]; j++ ) {
  95                                 if ( dn_issuffix( tmp, be->be_replica[i]->ri_nsuffix[j] ) ) {
  96                                         break;
  97                                 }
  98                         }
  99
 100                         if ( !be->be_replica[i]->ri_nsuffix[j] ) {
 101                                 /* do not add "replica:" line */
 102                                 continue;
 103                         }
 104                 }
 105
 106                 fprintf( fp, "replica: %s\n", be->be_replica[i]->ri_host );
 107 #ifdef NO_LOG_WHEN_NO_REPLICAS
 108                 ++count;
 109 #endif
 110         }
 111
 112         ch_free( tmp );
 113 #ifdef NO_LOG_WHEN_NO_REPLICAS
 114         if ( count == 0 ) {
 115                 /* if no replicas matched, drop the log
 116                  * (should we log it anyway?) */
 117                 lock_fclose( fp, lfp );
 118                 ldap_pvt_thread_mutex_unlock( &replog_mutex );
 119
 120                 return;
 121         }
 122 #endif
 123
 124         fprintf( fp, "time: %ld\n", (long) slap_get_time() );
 125         fprintf( fp, "dn: %s\n", dn );
 126
 127         switch ( op->o_tag ) {
 128         case LDAP_REQ_EXTENDED:
 129                 /* quick hack for extended operations */
 130                 /* assume change parameter is a Modfications* */
 131                 /* fall thru */
 132
 133         case LDAP_REQ_MODIFY:
 134                 fprintf( fp, "changetype: modify\n" );
 135                 ml = change;
 136                 for ( ; ml != NULL; ml = ml->sml_next ) {
 137                         char *type;
 138                         type = ml->sml_desc->ad_cname->bv_val;
 139                         switch ( ml->sml_op ) {
 140                         case LDAP_MOD_ADD:
 141                                 fprintf( fp, "add: %s\n", type );
 142                                 break;
 143
 144                         case LDAP_MOD_DELETE:
 145                                 fprintf( fp, "delete: %s\n", type );
 146                                 break;
 147
 148                         case LDAP_MOD_REPLACE:
 149                                 fprintf( fp, "replace: %s\n", type );
 150                                 break;
 151                         }
 152
 153                         for ( i = 0; ml->sml_bvalues != NULL &&
 154                             ml->sml_bvalues[i] != NULL; i++ ) {
 155                                 char    *buf, *bufp;
 156
 157                                 len = strlen( type );
 158                                 len = LDIF_SIZE_NEEDED( len,
 159                                     ml->sml_bvalues[i]->bv_len ) + 1;
 160                                 buf = (char *) ch_malloc( len );
 161
 162                                 bufp = buf;
 163                                 ldif_sput( &bufp, LDIF_PUT_VALUE,
 164                                         type,
 165                                     ml->sml_bvalues[i]->bv_val,
 166                                     ml->sml_bvalues[i]->bv_len );
 167                                 *bufp = '\0';
 168
 169                                 fputs( buf, fp );
 170
 171                                 free( buf );
 172                         }
 173                         fprintf( fp, "-\n" );
 174                 }
 175                 break;
 176
 177         case LDAP_REQ_ADD:
 178                 e = change;
 179                 fprintf( fp, "changetype: add\n" );
 180                 ldap_pvt_thread_mutex_lock( &entry2str_mutex );
 181                 tmp = entry2str( e, &len );
 182                 while ( (tmp = strchr( tmp, '\n' )) != NULL ) {
 183                         tmp++;
 184                         if ( ! isspace( (unsigned char) *tmp ) )
 185                                 break;
 186                 }
 187                 fprintf( fp, "%s", tmp );
 188                 ldap_pvt_thread_mutex_unlock( &entry2str_mutex );
 189                 break;
 190
 191         case LDAP_REQ_DELETE:
 192                 fprintf( fp, "changetype: delete\n" );
 193                 break;
 194
 195         case LDAP_REQ_MODRDN:
 196                 moddn = change;
 197                 fprintf( fp, "changetype: modrdn\n" );
 198                 fprintf( fp, "newrdn: %s\n", moddn->newrdn );
 199                 fprintf( fp, "deleteoldrdn: %d\n", moddn->deloldrdn ? 1 : 0 );
 200                 if( moddn->newsup != NULL ) {
 201                         fprintf( fp, "newsuperior: %s\n", moddn->newsup );
 202                 }
 203         }
 204         fprintf( fp, "\n" );
 205
 206         lock_fclose( fp, lfp );
 207         ldap_pvt_thread_mutex_unlock( &replog_mutex );
 208 }