source4/winbind/wb_server.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Main winbindd server routines
   4
   5    Copyright (C) Stefan Metzmacher      2005
   6    Copyright (C) Andrew Tridgell        2005
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "nsswitch/winbind_nss_config.h"
  23 #include "nsswitch/winbind_struct_protocol.h"
  24 #include "winbind/idmap.h"
  25 #include "libnet/libnet.h"
  26
  27 /* this struct stores global data for the winbind task */
  28 struct wbsrv_service {
  29         struct task_server *task;
  30
  31         const struct dom_sid *primary_sid;
  32         enum netr_SchannelType sec_channel_type;
  33         struct wbsrv_domain *domains;
  34         struct idmap_context *idmap_ctx;
  35         const char *priv_pipe_dir;
  36         const char *pipe_dir;
  37
  38         struct wbsrv_connection *broken_connections;
  39 };
  40
  41 struct wbsrv_samconn {
  42         struct wbsrv_domain *domain;
  43         void *private_data;
  44
  45         struct composite_context (*seqnum_send)(struct wbsrv_samconn *);
  46         NTSTATUS (*seqnum_recv)(struct composite_context *, uint64_t *);
  47 };
  48
  49 struct wb_dom_info {
  50         const char *name;
  51         const char *dns_name;
  52         const struct dom_sid *sid;
  53         struct nbt_dc_name *dc;
  54 };
  55
  56 struct wbsrv_domain {
  57         struct wbsrv_domain *next, *prev;
  58
  59         struct wb_dom_info *info;
  60
  61         /* Details for the server we are currently talking to */
  62         const char *dc_address;
  63         const char *dc_name;
  64
  65         struct libnet_context *libnet_ctx;
  66
  67         struct dcerpc_binding *lsa_binding;
  68
  69         struct dcerpc_binding *samr_binding;
  70
  71         struct dcerpc_pipe *netlogon_pipe;
  72         struct dcerpc_binding *netlogon_binding;
  73         /* netlogon_creds usage needs to be queued */
  74         struct tevent_queue *netlogon_queue;
  75 };
  76
  77 /*
  78   state of a listen socket and it's protocol information
  79 */
  80 struct wbsrv_listen_socket {
  81         const char *socket_path;
  82         struct wbsrv_service *service;
  83         bool privileged;
  84 };
  85
  86 /*
  87   state of an open winbind connection
  88 */
  89 struct wbsrv_connection {
  90         /* for the broken_connections DLIST */
  91         struct wbsrv_connection *prev, *next;
  92
  93         /* stream connection we belong to */
  94         struct stream_connection *conn;
  95
  96         /* the listening socket we belong to, it holds protocol hooks */
  97         struct wbsrv_listen_socket *listen_socket;
  98
  99         /* storage for protocol specific data */
 100         void *protocol_private_data;
 101
 102         /* how many calls are pending (do not terminate the connection with calls pending a reply) */
 103         uint32_t pending_calls;
 104
 105         /* is this connection pending termination?  If so, why? */
 106         const char *terminate;
 107
 108         struct tstream_context *tstream;
 109
 110         struct tevent_queue *send_queue;
 111
 112         struct loadparm_context *lp_ctx;
 113 };
 114
 115 #define WBSRV_SAMBA3_SET_STRING(dest, src) do { \
 116         memset(dest, 0, sizeof(dest));\
 117         strlcpy((dest), (src) ? (src) : "", sizeof(dest));\
 118 } while(0)
 119
 120 /*
 121   state of a pwent query
 122 */
 123 struct wbsrv_pwent {
 124         /* Current UserList structure, contains 1+ user structs */
 125         struct libnet_UserList *user_list;
 126
 127         /* Index of the next user struct in the current UserList struct */
 128         uint32_t page_index;
 129
 130         /* The libnet_ctx to use for the libnet_UserList call */
 131         struct libnet_context *libnet_ctx;
 132 };
 133 /*
 134   state of a grent query
 135 */
 136 struct wbsrv_grent {
 137         /* Current UserList structure, contains 1+ user structs */
 138         struct libnet_GroupList *group_list;
 139
 140         /* Index of the next user struct in the current UserList struct */
 141         uint32_t page_index;
 142
 143         /* The libnet_ctx to use for the libnet_UserList call */
 144         struct libnet_context *libnet_ctx;
 145 };
 146
 147 /*
 148   state of one request
 149
 150   NOTE about async replies:
 151    if the backend wants to reply later:
 152
 153    - it should set the WBSRV_CALL_FLAGS_REPLY_ASYNC flag, and may set a
 154      talloc_destructor on the this structure or on the private_data (if it's a
 155      talloc child of this structure), so that wbsrv_terminate_connection
 156      called by another call clean up the whole connection correct.
 157    - When the backend is ready to reply it should call wbsrv_send_reply(call),
 158      wbsrv_send_reply implies talloc_free(call), so the backend should use
 159      talloc_reference(call), if it needs it later.
 160    - If wbsrv_send_reply doesn't return NT_STATUS_OK, the backend function
 161      should call, wbsrv_terminate_connection(call->wbconn, nt_errstr(status));
 162      return;
 163
 164 */
 165 struct wbsrv_samba3_call {
 166 #define WBSRV_CALL_FLAGS_REPLY_ASYNC 0x00000001
 167         uint32_t flags;
 168
 169         /* the connection the call belongs to */
 170         struct wbsrv_connection *wbconn;
 171
 172         /* here the backend can store stuff like composite_context's ... */
 173         void *private_data;
 174
 175         /* the request structure of the samba3 protocol */
 176         struct winbindd_request *request;
 177
 178         /* the response structure of the samba3 protocol*/
 179         struct winbindd_response *response;
 180
 181         DATA_BLOB in;
 182         DATA_BLOB out;
 183         struct iovec out_iov[1];
 184 };
 185
 186 struct netr_LMSessionKey;
 187 struct netr_UserSessionKey;
 188 struct winbind_SamLogon;
 189 struct winbind_DsrUpdateReadOnlyServerDnsRecords;
 190
 191 #include "winbind/wb_async_helpers.h"
 192 #include "winbind/wb_proto.h"