source4/dsdb/repl/drepl_service.h

   1 /*
   2    Unix SMB/CIFS mplementation.
   3    DSDB replication service
   4
   5    Copyright (C) Stefan Metzmacher 2007
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 */
  21
  22 #ifndef _DSDB_REPL_DREPL_SERVICE_H_
  23 #define _DSDB_REPL_DREPL_SERVICE_H_
  24
  25 #include "librpc/gen_ndr/ndr_drsuapi_c.h"
  26
  27 struct dreplsrv_service;
  28 struct dreplsrv_partition;
  29
  30 struct dreplsrv_drsuapi_connection {
  31         /*
  32          * this pipe pointer is also the indicator
  33          * for a valid connection
  34          */
  35         struct dcerpc_pipe *pipe;
  36
  37         DATA_BLOB gensec_skey;
  38         struct drsuapi_DsBindInfo28 remote_info28;
  39         struct policy_handle bind_handle;
  40 };
  41
  42 struct dreplsrv_out_connection {
  43         struct dreplsrv_out_connection *prev, *next;
  44
  45         struct dreplsrv_service *service;
  46
  47         /*
  48          * the binding for the outgoing connection
  49          */
  50         struct dcerpc_binding *binding;
  51
  52         /* the out going connection to the source dsa */
  53         struct dreplsrv_drsuapi_connection *drsuapi;
  54 };
  55
  56 struct dreplsrv_partition_source_dsa {
  57         struct dreplsrv_partition_source_dsa *prev, *next;
  58
  59         struct dreplsrv_partition *partition;
  60
  61         /*
  62          * the cached repsFrom value for this source dsa
  63          *
  64          * it needs to be updated after each DsGetNCChanges() call
  65          * to the source dsa
  66          *
  67          * repsFrom1 == &_repsFromBlob.ctr.ctr1
  68          */
  69         struct repsFromToBlob _repsFromBlob;
  70         struct repsFromTo1 *repsFrom1;
  71
  72         /* the last uSN when we sent a notify */
  73         uint64_t notify_uSN;
  74
  75         /* the reference to the source_dsa and its outgoing connection */
  76         struct dreplsrv_out_connection *conn;
  77 };
  78
  79 struct dreplsrv_partition {
  80         struct dreplsrv_partition *prev, *next;
  81
  82         struct dreplsrv_service *service;
  83
  84         /* the dn of the partition */
  85         struct ldb_dn *dn;
  86         struct drsuapi_DsReplicaObjectIdentifier nc;
  87
  88         /*
  89          * uptodate vector needs to be updated before and after each DsGetNCChanges() call
  90          *
  91          * - before: we need to use our own invocationId together with our highestCommitedUsn
  92          * - after: we need to merge in the remote uptodatevector, to avoid reading it again
  93          */
  94         struct replUpToDateVectorCtr2 uptodatevector;
  95         struct drsuapi_DsReplicaCursorCtrEx uptodatevector_ex;
  96
  97         /*
  98          * a linked list of all source dsa's we replicate from
  99          */
 100         struct dreplsrv_partition_source_dsa *sources;
 101 };
 102
 103 typedef void (*dreplsrv_fsmo_callback_t)(struct dreplsrv_service *, WERROR );
 104
 105 struct dreplsrv_out_operation {
 106         struct dreplsrv_out_operation *prev, *next;
 107
 108         struct dreplsrv_service *service;
 109
 110         struct dreplsrv_partition_source_dsa *source_dsa;
 111
 112         enum drsuapi_DsExtendedOperation extended_op;
 113         uint64_t fsmo_info;
 114         dreplsrv_fsmo_callback_t callback;
 115 };
 116
 117 struct dreplsrv_notify_operation {
 118         struct dreplsrv_notify_operation *prev, *next;
 119
 120         struct dreplsrv_service *service;
 121         uint64_t uSN;
 122
 123         struct dreplsrv_partition_source_dsa *source_dsa;
 124
 125         struct composite_context *creq;
 126 };
 127
 128 struct dreplsrv_service {
 129         /* the whole drepl service is in one task */
 130         struct task_server *task;
 131
 132         /* the time the service was started */
 133         struct timeval startup_time;
 134
 135         /*
 136          * system session info
 137          * with machine account credentials
 138          */
 139         struct auth_session_info *system_session_info;
 140
 141         /*
 142          * a connection to the local samdb
 143          */
 144         struct ldb_context *samdb;
 145
 146         /* the guid of our NTDS Settings object, which never changes! */
 147         struct GUID ntds_guid;
 148         /*
 149          * the struct holds the values used for outgoing DsBind() calls,
 150          * so that we need to set them up only once
 151          */
 152         struct drsuapi_DsBindInfo28 bind_info28;
 153
 154         /* some stuff for periodic processing */
 155         struct {
 156                 /*
 157                  * the interval between to periodic runs
 158                  */
 159                 uint32_t interval;
 160
 161                 /*
 162                  * the timestamp for the next event,
 163                  * this is the timstamp passed to event_add_timed()
 164                  */
 165                 struct timeval next_event;
 166
 167                 /* here we have a reference to the timed event the schedules the periodic stuff */
 168                 struct tevent_timer *te;
 169         } periodic;
 170
 171         /* some stuff for notify processing */
 172         struct {
 173                 /*
 174                  * the interval between notify runs
 175                  */
 176                 uint32_t interval;
 177
 178                 /*
 179                  * the timestamp for the next event,
 180                  * this is the timstamp passed to event_add_timed()
 181                  */
 182                 struct timeval next_event;
 183
 184                 /* here we have a reference to the timed event the schedules the notifies */
 185                 struct tevent_timer *te;
 186         } notify;
 187
 188         /*
 189          * the list of partitions we need to replicate
 190          */
 191         struct dreplsrv_partition *partitions;
 192
 193         /*
 194          * the list of cached connections
 195          */
 196         struct dreplsrv_out_connection *connections;
 197
 198         struct {
 199                 /* the pointer to the current active operation */
 200                 struct dreplsrv_out_operation *current;
 201
 202                 /* the list of pending operations */
 203                 struct dreplsrv_out_operation *pending;
 204
 205                 /* the list of pending notify operations */
 206                 struct dreplsrv_notify_operation *notifies;
 207
 208                 /* an active notify operation */
 209                 struct dreplsrv_notify_operation *n_current;
 210         } ops;
 211
 212         struct {
 213                 bool in_progress;
 214                 struct dreplsrv_partition_source_dsa *rid_manager_source_dsa;
 215         } ridalloc;
 216 };
 217
 218 #include "dsdb/repl/drepl_out_helpers.h"
 219 #include "dsdb/repl/drepl_service_proto.h"
 220
 221 #endif /* _DSDB_REPL_DREPL_SERVICE_H_ */