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_udp_call {
  54         struct tsocket_address *src;
  55         DATA_BLOB in;
  56         DATA_BLOB out;
  57 };
  58
  59 /* hold information about one kdc/kpasswd udp socket */
  60 struct kdc_udp_socket {
  61         struct kdc_socket *kdc_socket;
  62         struct tdgram_context *dgram;
  63         struct tevent_queue *send_queue;
  64 };
  65
  66 struct kdc_tcp_call {
  67         struct kdc_tcp_connection *kdc_conn;
  68         DATA_BLOB in;
  69         DATA_BLOB out;
  70         uint8_t out_hdr[4];
  71         struct iovec out_iov[2];
  72 };
  73
  74 typedef enum kdc_process_ret (*kdc_process_fn_t)(struct kdc_server *kdc,
  75                                                  TALLOC_CTX *mem_ctx,
  76                                                  DATA_BLOB *input,
  77                                                  DATA_BLOB *reply,
  78                                                  struct tsocket_address *peer_addr,
  79                                                  struct tsocket_address *my_addr,
  80                                                  int datagram);
  81
  82
  83 /* hold information about one kdc socket */
  84 struct kdc_socket {
  85         struct kdc_server *kdc;
  86         struct tsocket_address *local_address;
  87         kdc_process_fn_t process;
  88 };
  89
  90 /*
  91   state of an open tcp connection
  92 */
  93 struct kdc_tcp_connection {
  94         /* stream connection we belong to */
  95         struct stream_connection *conn;
  96
  97         /* the kdc_server the connection belongs to */
  98         struct kdc_socket *kdc_socket;
  99
 100         struct tstream_context *tstream;
 101
 102         struct tevent_queue *send_queue;
 103 };
 104
 105
 106 enum kdc_process_ret kpasswdd_process(struct kdc_server *kdc,
 107                                       TALLOC_CTX *mem_ctx,
 108                                       DATA_BLOB *input,
 109                                       DATA_BLOB *reply,
 110                                       struct tsocket_address *peer_addr,
 111                                       struct tsocket_address *my_addr,
 112                                       int datagram_reply);
 113
 114 /* from hdb-samba4.c */
 115 NTSTATUS hdb_samba4_create_kdc(struct samba_kdc_base_context *base_ctx,
 116                                krb5_context context, struct HDB **db);
 117
 118 /* from proxy.c */
 119 void kdc_udp_proxy(struct kdc_server *kdc, struct kdc_udp_socket *sock,
 120                    struct kdc_udp_call *call, uint16_t port);
 121
 122 void kdc_tcp_proxy(struct kdc_server *kdc, struct kdc_tcp_connection *kdc_conn,
 123                    struct kdc_tcp_call *call, uint16_t port);
 124
 125 #endif