root/source4/libcli/dgram/libdgram.h

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INCLUDED FROM


   1 /*
   2    Unix SMB/CIFS implementation.
   3 
   4    a raw async NBT DGRAM library
   5 
   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 "../libcli/netlogon.h"
  23 
  24 /*
  25   a datagram name request
  26 */
  27 struct nbt_dgram_request {
  28         struct nbt_dgram_request *next, *prev;
  29 
  30         /* where to send the request */
  31         struct socket_address *dest;
  32 
  33         /* the encoded request */
  34         DATA_BLOB encoded;
  35 };
  36 
  37 /*
  38   context structure for operations on dgram packets
  39 */
  40 struct nbt_dgram_socket {
  41         struct socket_context *sock;
  42         struct tevent_context *event_ctx;
  43         struct smb_iconv_convenience *iconv_convenience;
  44 
  45         /* the fd event */
  46         struct tevent_fd *fde;
  47 
  48         /* a queue of outgoing requests */
  49         struct nbt_dgram_request *send_queue;
  50 
  51         /* a list of mailslot handlers */
  52         struct dgram_mailslot_handler *mailslot_handlers;
  53 
  54         /* what to do with incoming request packets */
  55         struct {
  56                 void (*handler)(struct nbt_dgram_socket *, struct nbt_dgram_packet *, 
  57                                 struct socket_address *src);
  58                 void *private_data;
  59         } incoming;
  60 };
  61 
  62 
  63 /*
  64   the mailslot code keeps a list of mailslot handlers. A mailslot
  65   handler is a function that receives incoming packets for a specific
  66   mailslot name. When a caller needs to send a mailslot and wants to
  67   get a reply then it needs to register itself as listening for
  68   incoming packets on the reply mailslot
  69 */
  70 
  71 typedef void (*dgram_mailslot_handler_t)(struct dgram_mailslot_handler *, 
  72                                          struct nbt_dgram_packet *, 
  73                                          struct socket_address *src);
  74 
  75 struct dgram_mailslot_handler {
  76         struct dgram_mailslot_handler *next, *prev;
  77 
  78         struct nbt_dgram_socket *dgmsock;
  79         const char *mailslot_name;
  80 
  81         dgram_mailslot_handler_t handler;
  82         void *private_data;
  83 };
  84 
  85 
  86 /* prototypes */
  87 NTSTATUS nbt_dgram_send(struct nbt_dgram_socket *dgmsock,
  88                         struct nbt_dgram_packet *packet,
  89                         struct socket_address *dest);
  90 NTSTATUS dgram_set_incoming_handler(struct nbt_dgram_socket *dgmsock,
  91                                     void (*handler)(struct nbt_dgram_socket *, 
  92                                                     struct nbt_dgram_packet *, 
  93                                                     struct socket_address *),
  94                                     void *private_data);
  95 struct nbt_dgram_socket *nbt_dgram_socket_init(TALLOC_CTX *mem_ctx, 
  96                                                struct tevent_context *event_ctx,
  97                                                struct smb_iconv_convenience *);
  98 
  99 const char *dgram_mailslot_name(struct nbt_dgram_packet *packet);
 100 struct dgram_mailslot_handler *dgram_mailslot_find(struct nbt_dgram_socket *dgmsock,
 101                                                    const char *mailslot_name);
 102 struct dgram_mailslot_handler *dgram_mailslot_listen(struct nbt_dgram_socket *dgmsock,
 103                                                      const char *mailslot_name,
 104                                                      dgram_mailslot_handler_t handler,
 105                                                      void *private_data);
 106 struct dgram_mailslot_handler *dgram_mailslot_temp(struct nbt_dgram_socket *dgmsock,
 107                                                    const char *mailslot_name,
 108                                                    dgram_mailslot_handler_t handler,
 109                                                    void *private_data);
 110 DATA_BLOB dgram_mailslot_data(struct nbt_dgram_packet *dgram);
 111 
 112 
 113 NTSTATUS dgram_mailslot_send(struct nbt_dgram_socket *dgmsock,
 114                              enum dgram_msg_type msg_type,
 115                              const char *mailslot_name,
 116                              struct nbt_name *dest_name,
 117                              struct socket_address *dest,
 118                              struct nbt_name *src_name,
 119                              DATA_BLOB *request);
 120 
 121 NTSTATUS dgram_mailslot_netlogon_send(struct nbt_dgram_socket *dgmsock,
 122                                       struct nbt_name *dest_name,
 123                                       struct socket_address *dest,
 124                                       const char *mailslot_name,
 125                                       struct nbt_name *src_name,
 126                                       struct nbt_netlogon_packet *request);
 127 NTSTATUS dgram_mailslot_netlogon_reply(struct nbt_dgram_socket *dgmsock,
 128                                        struct nbt_dgram_packet *request,
 129                                        const char *my_netbios_name,
 130                                        const char *mailslot_name,
 131                                        struct nbt_netlogon_response *reply);
 132 NTSTATUS dgram_mailslot_netlogon_parse_request(struct dgram_mailslot_handler *dgmslot,
 133                                                TALLOC_CTX *mem_ctx,
 134                                                struct nbt_dgram_packet *dgram,
 135                                                struct nbt_netlogon_packet *netlogon);
 136 
 137 NTSTATUS dgram_mailslot_netlogon_parse_response(struct dgram_mailslot_handler *dgmslot,
 138                                                 TALLOC_CTX *mem_ctx,
 139                                                 struct nbt_dgram_packet *dgram,
 140                                                 struct nbt_netlogon_response *netlogon);
 141 
 142 NTSTATUS dgram_mailslot_browse_send(struct nbt_dgram_socket *dgmsock,
 143                                     struct nbt_name *dest_name,
 144                                     struct socket_address *dest,
 145                                     struct nbt_name *src_name,
 146                                     struct nbt_browse_packet *request);
 147 
 148 NTSTATUS dgram_mailslot_browse_reply(struct nbt_dgram_socket *dgmsock,
 149                                      struct nbt_dgram_packet *request,
 150                                      const char *mailslot_name,
 151                                      const char *my_netbios_name,
 152                                      struct nbt_browse_packet *reply);
 153 
 154 NTSTATUS dgram_mailslot_browse_parse(struct dgram_mailslot_handler *dgmslot,
 155                                      TALLOC_CTX *mem_ctx,
 156                                      struct nbt_dgram_packet *dgram,
 157                                      struct nbt_browse_packet *pkt);

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