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

   1 /* ldapsync.c -- LDAP Content Sync Routines */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2004 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 IBM Corporation.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in the file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17
  18 #include "portable.h"
  19
  20 #include <stdio.h>
  21
  22 #include <ac/string.h>
  23 #include <ac/socket.h>
  24
  25 #include "lutil.h"
  26 #include "slap.h"
  27 #include "../../libraries/liblber/lber-int.h" /* get ber_strndup() */
  28 #include "lutil_ldap.h"
  29
  30 #if 0
  31 struct sync_cookie *slap_sync_cookie = NULL;
  32 #else
  33 struct slap_sync_cookie_s slap_sync_cookie =
  34         LDAP_STAILQ_HEAD_INITIALIZER( slap_sync_cookie );
  35 #endif
  36
  37 void
  38 slap_compose_sync_cookie(
  39         Operation *op,
  40         struct berval *cookie,
  41         struct berval *csn,
  42         int sid,
  43         int rid )
  44 {
  45         char cookiestr[ LDAP_LUTIL_CSNSTR_BUFSIZE + 20 ];
  46
  47         if ( csn->bv_val == NULL ) {
  48                 if ( sid == -1 ) {
  49                         if ( rid == -1 ) {
  50                                 cookiestr[0] = '\0';
  51                         } else {
  52                                 snprintf( cookiestr, LDAP_LUTIL_CSNSTR_BUFSIZE + 20,
  53                                                 "rid=%03d", rid );
  54                         }
  55                 } else {
  56                         if ( rid == -1 ) {
  57                                 snprintf( cookiestr, LDAP_LUTIL_CSNSTR_BUFSIZE + 20,
  58                                                 "sid=%03d", sid );
  59                         } else {
  60                                 snprintf( cookiestr, LDAP_LUTIL_CSNSTR_BUFSIZE + 20,
  61                                                 "sid=%03d,rid=%03d", sid, rid );
  62                         }
  63                 }
  64         } else {
  65                 if ( sid == -1 ) {
  66                         if ( rid == -1 ) {
  67                                 snprintf( cookiestr, LDAP_LUTIL_CSNSTR_BUFSIZE + 20,
  68                                                 "csn=%s", csn->bv_val );
  69                         } else {
  70                                 snprintf( cookiestr, LDAP_LUTIL_CSNSTR_BUFSIZE + 20,
  71                                                 "csn=%s,rid=%03d", csn->bv_val, rid );
  72                         }
  73                 } else {
  74                         if ( rid == -1 ) {
  75                                 snprintf( cookiestr, LDAP_LUTIL_CSNSTR_BUFSIZE + 20,
  76                                                 "csn=%s,sid=%03d", csn->bv_val, sid );
  77                         } else {
  78                                 snprintf( cookiestr, LDAP_LUTIL_CSNSTR_BUFSIZE + 20,
  79                                                 "csn=%s,sid=%03d,rid=%03d", csn->bv_val, sid, rid );
  80                         }
  81                 }
  82         }
  83         ber_str2bv( cookiestr, strlen(cookiestr), 1, cookie );
  84 }
  85
  86 void
  87 slap_sync_cookie_free(
  88         struct sync_cookie *cookie,
  89         int free_cookie
  90 )
  91 {
  92         if ( cookie == NULL )
  93                 return;
  94
  95         if ( cookie->ctxcsn ) {
  96                 ber_bvarray_free( cookie->ctxcsn );
  97                 cookie->ctxcsn = NULL;
  98         }
  99
 100         if ( cookie->octet_str ) {
 101                 ber_bvarray_free( cookie->octet_str );
 102                 cookie->octet_str = NULL;
 103         }
 104
 105         if ( free_cookie ) {
 106                 ch_free( cookie );
 107         }
 108
 109         return;
 110 }
 111
 112 int
 113 slap_parse_sync_cookie(
 114         struct sync_cookie *cookie
 115 )
 116 {
 117         char *csn_ptr;
 118         char *csn_str;
 119         int csn_str_len;
 120         char *sid_ptr;
 121         char *sid_str;
 122         char *rid_ptr;
 123         char *rid_str;
 124         char *cval;
 125         struct berval *ctxcsn;
 126
 127         if ( cookie == NULL )
 128                 return -1;
 129
 130         if (( csn_ptr = strstr( cookie->octet_str[0].bv_val, "csn=" )) != NULL ) {
 131                 csn_str = SLAP_STRNDUP( csn_ptr, LDAP_LUTIL_CSNSTR_BUFSIZE );
 132                 if ( (cval = strchr( csn_str, ',' )) != NULL ) {
 133                         *cval = '\0';
 134                         csn_str_len = cval - csn_str - (sizeof("csn=") - 1);
 135                 } else {
 136                         csn_str_len = cookie->octet_str[0].bv_len -
 137                                                         (csn_ptr - cookie->octet_str[0].bv_val) -
 138                                                         (sizeof("csn=") - 1);
 139                 }
 140                 ctxcsn = ber_str2bv( csn_str + (sizeof("csn=")-1),
 141                                                          csn_str_len, 1, NULL );
 142                 ch_free( csn_str );
 143                 ber_bvarray_add( &cookie->ctxcsn, ctxcsn );
 144                 ch_free( ctxcsn );
 145         } else {
 146                 cookie->ctxcsn = NULL;
 147         }
 148
 149         if (( sid_ptr = strstr( cookie->octet_str->bv_val, "sid=" )) != NULL ) {
 150                 sid_str = SLAP_STRNDUP( sid_ptr,
 151                                                         SLAP_SYNC_SID_SIZE + sizeof("sid=") - 1 );
 152                 if ( (cval = strchr( sid_str, ',' )) != NULL ) {
 153                         *cval = '\0';
 154                 }
 155                 cookie->sid = atoi( sid_str + sizeof("sid=") - 1 );
 156                 ch_free( sid_str );
 157         } else {
 158                 cookie->sid = -1;
 159         }
 160
 161         if (( rid_ptr = strstr( cookie->octet_str->bv_val, "rid=" )) != NULL ) {
 162                 rid_str = SLAP_STRNDUP( rid_ptr,
 163                                                         SLAP_SYNC_RID_SIZE + sizeof("rid=") - 1 );
 164                 if ( (cval = strchr( rid_str, ',' )) != NULL ) {
 165                         *cval = '\0';
 166                 }
 167                 cookie->rid = atoi( rid_str + sizeof("rid=") - 1 );
 168                 ch_free( rid_str );
 169         } else {
 170                 cookie->rid = -1;
 171         }
 172         return 0;
 173 }
 174
 175 int
 176 slap_init_sync_cookie_ctxcsn(
 177         struct sync_cookie *cookie
 178 )
 179 {
 180         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE + 4 ];
 181         struct berval octet_str = BER_BVNULL;
 182         struct berval ctxcsn = BER_BVNULL;
 183         struct berval ctxcsn_dup = BER_BVNULL;
 184         struct berval slap_syncCookie;
 185
 186         if ( cookie == NULL )
 187                 return -1;
 188
 189         octet_str.bv_len = snprintf( csnbuf, LDAP_LUTIL_CSNSTR_BUFSIZE + 4,
 190                                         "csn=%4d%02d%02d%02d%02d%02dZ#%06x#%02x#%06x",
 191                                         1900, 1, 1, 0, 0, 0, 0, 0, 0 );
 192         octet_str.bv_val = csnbuf;
 193         build_new_dn( &slap_syncCookie, &cookie->octet_str[0], &octet_str, NULL );
 194         ber_bvarray_free( cookie->octet_str );
 195         cookie->octet_str = NULL;
 196         ber_bvarray_add( &cookie->octet_str, &slap_syncCookie );
 197
 198         ctxcsn.bv_val = octet_str.bv_val + 4;
 199         ctxcsn.bv_len = octet_str.bv_len - 4;
 200         ber_dupbv( &ctxcsn_dup, &ctxcsn );
 201         ber_bvarray_add( &cookie->ctxcsn, &ctxcsn_dup );
 202
 203         return 0;
 204 }
 205
 206 struct sync_cookie *
 207 slap_dup_sync_cookie(
 208         struct sync_cookie *dst,
 209         struct sync_cookie *src
 210 )
 211 {
 212         int i;
 213         struct sync_cookie *new;
 214         struct berval tmp_bv;
 215
 216         if ( src == NULL )
 217                 return NULL;
 218
 219         if ( dst ) {
 220                 ber_bvarray_free( dst->ctxcsn );
 221                 ber_bvarray_free( dst->octet_str );
 222                 new = dst;
 223         } else {
 224                 new = ( struct sync_cookie * )
 225                                 ch_calloc( 1, sizeof( struct sync_cookie ));
 226         }
 227
 228         new->sid = src->sid;
 229         new->rid = src->rid;
 230
 231         if ( src->ctxcsn ) {
 232                 for ( i=0; src->ctxcsn[i].bv_val; i++ ) {
 233                         ber_dupbv( &tmp_bv, &src->ctxcsn[i] );
 234                         ber_bvarray_add( &new->ctxcsn, &tmp_bv );
 235                 }
 236         }
 237
 238         if ( src->octet_str ) {
 239                 for ( i=0; src->octet_str[i].bv_val; i++ ) {
 240                         ber_dupbv( &tmp_bv, &src->octet_str[i] );
 241                         ber_bvarray_add( &new->octet_str, &tmp_bv );
 242                 }
 243         }
 244
 245         return new;
 246 }
 247