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
  39 struct wbsrv_samconn {
  40         struct wbsrv_domain *domain;
  41         void *private_data;
  42
  43         struct composite_context (*seqnum_send)(struct wbsrv_samconn *);
  44         NTSTATUS (*seqnum_recv)(struct composite_context *, uint64_t *);
  45 };
  46
  47 struct wb_dom_info {
  48         const char *name;
  49         const char *dns_name;
  50         const struct dom_sid *sid;
  51         struct nbt_dc_name *dc;
  52 };
  53
  54 struct wbsrv_domain {
  55         struct wbsrv_domain *next, *prev;
  56
  57         struct wb_dom_info *info;
  58
  59         /* Details for the server we are currently talking to */
  60         const char *dc_address;
  61         const char *dc_name;
  62
  63         struct libnet_context *libnet_ctx;
  64
  65         struct dcerpc_binding *lsa_binding;
  66
  67         struct dcerpc_binding *samr_binding;
  68
  69         struct dcerpc_pipe *netlogon_pipe;
  70         struct dcerpc_binding *netlogon_binding;
  71         /* netlogon_creds usage needs to be queued */
  72         struct tevent_queue *netlogon_queue;
  73 };
  74
  75 /*
  76   state of a listen socket and it's protocol information
  77 */
  78 struct wbsrv_listen_socket {
  79         const char *socket_path;
  80         struct wbsrv_service *service;
  81         bool privileged;
  82 };
  83
  84 /*
  85   state of an open winbind connection
  86 */
  87 struct wbsrv_connection {
  88         /* stream connection we belong to */
  89         struct stream_connection *conn;
  90
  91         /* the listening socket we belong to, it holds protocol hooks */
  92         struct wbsrv_listen_socket *listen_socket;
  93
  94         /* storage for protocol specific data */
  95         void *protocol_private_data;
  96
  97         /* how many calls are pending */
  98         uint32_t pending_calls;
  99
 100         struct tstream_context *tstream;
 101
 102         struct tevent_queue *send_queue;
 103
 104         struct loadparm_context *lp_ctx;
 105 };
 106
 107 #define WBSRV_SAMBA3_SET_STRING(dest, src) do { \
 108         memset(dest, 0, sizeof(dest));\
 109         strlcpy((dest), (src) ? (src) : "", sizeof(dest));\
 110 } while(0)
 111
 112 /*
 113   state of a pwent query
 114 */
 115 struct wbsrv_pwent {
 116         /* Current UserList structure, contains 1+ user structs */
 117         struct libnet_UserList *user_list;
 118
 119         /* Index of the next user struct in the current UserList struct */
 120         uint32_t page_index;
 121
 122         /* The libnet_ctx to use for the libnet_UserList call */
 123         struct libnet_context *libnet_ctx;
 124 };
 125 /*
 126   state of a grent query
 127 */
 128 struct wbsrv_grent {
 129         /* Current UserList structure, contains 1+ user structs */
 130         struct libnet_GroupList *group_list;
 131
 132         /* Index of the next user struct in the current UserList struct */
 133         uint32_t page_index;
 134
 135         /* The libnet_ctx to use for the libnet_UserList call */
 136         struct libnet_context *libnet_ctx;
 137 };
 138
 139 /*
 140   state of one request
 141
 142   NOTE about async replies:
 143    if the backend wants to reply later:
 144
 145    - it should set the WBSRV_CALL_FLAGS_REPLY_ASYNC flag, and may set a
 146      talloc_destructor on the this structure or on the private_data (if it's a
 147      talloc child of this structure), so that wbsrv_terminate_connection
 148      called by another call clean up the whole connection correct.
 149    - When the backend is ready to reply it should call wbsrv_send_reply(call),
 150      wbsrv_send_reply implies talloc_free(call), so the backend should use
 151      talloc_reference(call), if it needs it later.
 152    - If wbsrv_send_reply doesn't return NT_STATUS_OK, the backend function
 153      should call, wbsrv_terminate_connection(call->wbconn, nt_errstr(status));
 154      return;
 155
 156 */
 157 struct wbsrv_samba3_call {
 158 #define WBSRV_CALL_FLAGS_REPLY_ASYNC 0x00000001
 159         uint32_t flags;
 160
 161         /* the connection the call belongs to */
 162         struct wbsrv_connection *wbconn;
 163
 164         /* here the backend can store stuff like composite_context's ... */
 165         void *private_data;
 166
 167         /* the request structure of the samba3 protocol */
 168         struct winbindd_request *request;
 169
 170         /* the response structure of the samba3 protocol*/
 171         struct winbindd_response *response;
 172
 173         DATA_BLOB in;
 174         DATA_BLOB out;
 175         struct iovec out_iov[1];
 176 };
 177
 178 struct netr_LMSessionKey;
 179 struct netr_UserSessionKey;
 180 struct winbind_SamLogon;
 181 struct winbind_DsrUpdateReadOnlyServerDnsRecords;
 182
 183 #include "winbind/wb_async_helpers.h"
 184 #include "winbind/wb_proto.h"