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 struct dreplsrv_out_operation {
 104         struct dreplsrv_out_operation *prev, *next;
 105
 106         struct dreplsrv_service *service;
 107
 108         struct dreplsrv_partition_source_dsa *source_dsa;
 109
 110         struct composite_context *creq;
 111 };
 112
 113 struct dreplsrv_notify_operation {
 114         struct dreplsrv_notify_operation *prev, *next;
 115
 116         struct dreplsrv_service *service;
 117         uint64_t uSN;
 118
 119         struct dreplsrv_partition_source_dsa *source_dsa;
 120
 121         struct composite_context *creq;
 122 };
 123
 124 struct dreplsrv_service {
 125         /* the whole drepl service is in one task */
 126         struct task_server *task;
 127
 128         /* the time the service was started */
 129         struct timeval startup_time;
 130
 131         /*
 132          * system session info
 133          * with machine account credentials
 134          */
 135         struct auth_session_info *system_session_info;
 136
 137         /*
 138          * a connection to the local samdb
 139          */
 140         struct ldb_context *samdb;
 141
 142         /* the guid of our NTDS Settings object, which never changes! */
 143         struct GUID ntds_guid;
 144         /*
 145          * the struct holds the values used for outgoing DsBind() calls,
 146          * so that we need to set them up only once
 147          */
 148         struct drsuapi_DsBindInfo28 bind_info28;
 149
 150         /* some stuff for periodic processing */
 151         struct {
 152                 /*
 153                  * the interval between to periodic runs
 154                  */
 155                 uint32_t interval;
 156
 157                 /*
 158                  * the timestamp for the next event,
 159                  * this is the timstamp passed to event_add_timed()
 160                  */
 161                 struct timeval next_event;
 162
 163                 /* here we have a reference to the timed event the schedules the periodic stuff */
 164                 struct tevent_timer *te;
 165         } periodic;
 166
 167         /* some stuff for notify processing */
 168         struct {
 169                 /*
 170                  * the interval between notify runs
 171                  */
 172                 uint32_t interval;
 173
 174                 /*
 175                  * the timestamp for the next event,
 176                  * this is the timstamp passed to event_add_timed()
 177                  */
 178                 struct timeval next_event;
 179
 180                 /* here we have a reference to the timed event the schedules the notifies */
 181                 struct tevent_timer *te;
 182         } notify;
 183
 184         /*
 185          * the list of partitions we need to replicate
 186          */
 187         struct dreplsrv_partition *partitions;
 188
 189         /*
 190          * the list of cached connections
 191          */
 192         struct dreplsrv_out_connection *connections;
 193
 194         struct {
 195                 /* the pointer to the current active operation */
 196                 struct dreplsrv_out_operation *current;
 197
 198                 /* the list of pending operations */
 199                 struct dreplsrv_out_operation *pending;
 200
 201                 /* the list of pending notify operations */
 202                 struct dreplsrv_notify_operation *notifies;
 203
 204                 /* an active notify operation */
 205                 struct dreplsrv_notify_operation *n_current;
 206         } ops;
 207 };
 208
 209 #include "dsdb/repl/drepl_out_helpers.h"
 210 #include "dsdb/repl/drepl_service_proto.h"
 211
 212 #endif /* _DSDB_REPL_DREPL_SERVICE_H_ */