source4/kdc/kdc-glue.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    KDC structures
   5
   6    Copyright (C) Andrew Tridgell        2005
   7    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #ifndef _KDC_KDC_H
  24 #define _KDC_KDC_H
  25
  26 #include "system/kerberos.h"
  27 #include "auth/kerberos/kerberos.h"
  28 #include <hdb.h>
  29 #include <kdc.h>
  30 #include <krb5/windc_plugin.h>
  31 #include "kdc/samba_kdc.h"
  32
  33 struct tsocket_address;
  34
  35 /*
  36   top level context structure for the kdc server
  37 */
  38 struct kdc_server {
  39         struct task_server *task;
  40         krb5_kdc_configuration *config;
  41         struct smb_krb5_context *smb_krb5_context;
  42         struct samba_kdc_base_context *base_ctx;
  43         struct ldb_context *samdb;
  44         bool am_rodc;
  45         uint32_t proxy_timeout;
  46 };
  47
  48 enum kdc_process_ret {
  49         KDC_PROCESS_OK=0,
  50         KDC_PROCESS_FAILED,
  51         KDC_PROCESS_PROXY};
  52
  53 struct kdc_tcp_call {
  54         struct kdc_tcp_connection *kdc_conn;
  55         DATA_BLOB in;
  56         DATA_BLOB out;
  57         uint8_t out_hdr[4];
  58         struct iovec out_iov[2];
  59 };
  60
  61 typedef enum kdc_process_ret (*kdc_process_fn_t)(struct kdc_server *kdc,
  62                                                  TALLOC_CTX *mem_ctx,
  63                                                  DATA_BLOB *input,
  64                                                  DATA_BLOB *reply,
  65                                                  struct tsocket_address *peer_addr,
  66                                                  struct tsocket_address *my_addr,
  67                                                  int datagram);
  68
  69
  70 /* hold information about one kdc socket */
  71 struct kdc_socket {
  72         struct kdc_server *kdc;
  73         struct tsocket_address *local_address;
  74         kdc_process_fn_t process;
  75 };
  76
  77 /*
  78   state of an open tcp connection
  79 */
  80 struct kdc_tcp_connection {
  81         /* stream connection we belong to */
  82         struct stream_connection *conn;
  83
  84         /* the kdc_server the connection belongs to */
  85         struct kdc_socket *kdc_socket;
  86
  87         struct tstream_context *tstream;
  88
  89         struct tevent_queue *send_queue;
  90 };
  91
  92
  93 enum kdc_process_ret kpasswdd_process(struct kdc_server *kdc,
  94                                       TALLOC_CTX *mem_ctx,
  95                                       DATA_BLOB *input,
  96                                       DATA_BLOB *reply,
  97                                       struct tsocket_address *peer_addr,
  98                                       struct tsocket_address *my_addr,
  99                                       int datagram_reply);
 100
 101 /* from hdb-samba4.c */
 102 NTSTATUS hdb_samba4_create_kdc(struct samba_kdc_base_context *base_ctx,
 103                                krb5_context context, struct HDB **db);
 104
 105 /* from proxy.c */
 106 struct tevent_req *kdc_udp_proxy_send(TALLOC_CTX *mem_ctx,
 107                                       struct tevent_context *ev,
 108                                       struct kdc_server *kdc,
 109                                       uint16_t port,
 110                                       DATA_BLOB in);
 111 NTSTATUS kdc_udp_proxy_recv(struct tevent_req *req,
 112                             TALLOC_CTX *mem_ctx,
 113                             DATA_BLOB *out);
 114
 115 void kdc_tcp_proxy(struct kdc_server *kdc, struct kdc_tcp_connection *kdc_conn,
 116                    struct kdc_tcp_call *call, uint16_t port);
 117
 118 #endif