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         struct wbsrv_domain *domains;
  33         struct idmap_context *idmap_ctx;
  34         const char *priv_pipe_dir;
  35         const char *pipe_dir;
  36 };
  37
  38 struct wbsrv_samconn {
  39         struct wbsrv_domain *domain;
  40         void *private_data;
  41
  42         struct composite_context (*seqnum_send)(struct wbsrv_samconn *);
  43         NTSTATUS (*seqnum_recv)(struct composite_context *, uint64_t *);
  44 };
  45
  46 struct wb_dom_info {
  47         const char *name;
  48         const char *dns_name;
  49         const struct dom_sid *sid;
  50
  51         int num_dcs;
  52         struct nbt_dc_name *dcs;
  53 };
  54
  55 struct wbsrv_domain {
  56         struct wbsrv_domain *next, *prev;
  57
  58         struct wb_dom_info *info;
  59
  60         /* Details for the server we are currently talking to */
  61         const char *dc_address;
  62         const char *dc_name;
  63
  64         struct libnet_context *libnet_ctx;
  65
  66         struct dcerpc_binding *lsa_binding;
  67
  68         struct dcerpc_binding *samr_binding;
  69
  70         struct dcerpc_pipe *netlogon_pipe;
  71         struct dcerpc_binding *netlogon_binding;
  72 };
  73
  74 /*
  75   state of a listen socket and it's protocol information
  76 */
  77 struct wbsrv_listen_socket {
  78         const char *socket_path;
  79         struct wbsrv_service *service;
  80         bool privileged;
  81 };
  82
  83 /*
  84   state of an open winbind connection
  85 */
  86 struct wbsrv_connection {
  87         /* stream connection we belong to */
  88         struct stream_connection *conn;
  89
  90         /* the listening socket we belong to, it holds protocol hooks */
  91         struct wbsrv_listen_socket *listen_socket;
  92
  93         /* storage for protocol specific data */
  94         void *protocol_private_data;
  95
  96         /* how many calls are pending */
  97         uint32_t pending_calls;
  98
  99         struct tstream_context *tstream;
 100
 101         struct tevent_queue *send_queue;
 102
 103         struct loadparm_context *lp_ctx;
 104 };
 105
 106 #define WBSRV_SAMBA3_SET_STRING(dest, src) do { \
 107         memset(dest, 0, sizeof(dest));\
 108         safe_strcpy(dest, src, sizeof(dest)-1);\
 109 } while(0)
 110
 111 /*
 112   state of a pwent query
 113 */
 114 struct wbsrv_pwent {
 115         /* Current UserList structure, contains 1+ user structs */
 116         struct libnet_UserList *user_list;
 117
 118         /* Index of the next user struct in the current UserList struct */
 119         uint32_t page_index;
 120
 121         /* The libnet_ctx to use for the libnet_UserList call */
 122         struct libnet_context *libnet_ctx;
 123 };
 124 /*
 125   state of a grent query
 126 */
 127 struct wbsrv_grent {
 128         /* Current UserList structure, contains 1+ user structs */
 129         struct libnet_GroupList *group_list;
 130
 131         /* Index of the next user struct in the current UserList struct */
 132         uint32_t page_index;
 133
 134         /* The libnet_ctx to use for the libnet_UserList call */
 135         struct libnet_context *libnet_ctx;
 136 };
 137
 138 /*
 139   state of one request
 140
 141   NOTE about async replies:
 142    if the backend wants to reply later:
 143
 144    - it should set the WBSRV_CALL_FLAGS_REPLY_ASYNC flag, and may set a
 145      talloc_destructor on the this structure or on the private_data (if it's a
 146      talloc child of this structure), so that wbsrv_terminate_connection
 147      called by another call clean up the whole connection correct.
 148    - When the backend is ready to reply it should call wbsrv_send_reply(call),
 149      wbsrv_send_reply implies talloc_free(call), so the backend should use
 150      talloc_reference(call), if it needs it later.
 151    - If wbsrv_send_reply doesn't return NT_STATUS_OK, the backend function
 152      should call, wbsrv_terminate_connection(call->wbconn, nt_errstr(status));
 153      return;
 154
 155 */
 156 struct wbsrv_samba3_call {
 157 #define WBSRV_CALL_FLAGS_REPLY_ASYNC 0x00000001
 158         uint32_t flags;
 159
 160         /* the connection the call belongs to */
 161         struct wbsrv_connection *wbconn;
 162
 163         /* here the backend can store stuff like composite_context's ... */
 164         void *private_data;
 165
 166         /* the request structure of the samba3 protocol */
 167         struct winbindd_request *request;
 168
 169         /* the response structure of the samba3 protocol*/
 170         struct winbindd_response *response;
 171
 172         DATA_BLOB in;
 173         DATA_BLOB out;
 174         struct iovec out_iov[1];
 175 };
 176
 177 struct netr_LMSessionKey;
 178 struct netr_UserSessionKey;
 179 struct winbind_SamLogon;
 180
 181 #include "winbind/wb_async_helpers.h"
 182 #include "winbind/wb_proto.h"