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/*
Unix SMB/CIFS implementation.
a raw async NBT DGRAM library
Copyright (C) Andrew Tridgell 2005
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "librpc/gen_ndr/ndr_nbt.h"
/*
a nbt name request
*/
struct nbt_dgram_request {
struct nbt_dgram_request *next, *prev;
/* where to send the request */
const char *dest_addr;
int dest_port;
/* the encoded request */
DATA_BLOB encoded;
};
/*
context structure for operations on dgram packets
*/
struct nbt_dgram_socket {
struct socket_context *sock;
struct event_context *event_ctx;
/* the fd event */
struct fd_event *fde;
/* a queue of outgoing requests */
struct nbt_dgram_request *send_queue;
/* a list of mailslot handlers */
struct dgram_mailslot_handler *mailslot_handlers;
/* what to do with incoming request packets */
struct {
void (*handler)(struct nbt_dgram_socket *, struct nbt_dgram_packet *,
const char *, int );
void *private;
} incoming;
};
/*
the mailslot code keeps a list of mailslot handlers. A mailslot
handler is a function that receives incoming packets for a specific
mailslot name. When a caller needs to send a mailslot and wants to
get a reply then it needs to register itself as listening for
incoming packets on the reply mailslot
*/
typedef void (*dgram_mailslot_handler_t)(struct dgram_mailslot_handler *,
struct nbt_dgram_packet *,
const char *, int );
struct dgram_mailslot_handler {
struct dgram_mailslot_handler *next, *prev;
struct nbt_dgram_socket *dgmsock;
const char *mailslot_name;
dgram_mailslot_handler_t handler;
void *private;
};
/* prototypes */
NTSTATUS nbt_dgram_send(struct nbt_dgram_socket *dgmsock,
struct nbt_dgram_packet *packet,
const char *dest_addr,
int dest_port);
NTSTATUS dgram_set_incoming_handler(struct nbt_dgram_socket *dgmsock,
void (*handler)(struct nbt_dgram_socket *,
struct nbt_dgram_packet *,
const char *, int ),
void *private);
struct nbt_dgram_socket *nbt_dgram_socket_init(TALLOC_CTX *mem_ctx,
struct event_context *event_ctx);
const char *dgram_mailslot_name(struct nbt_dgram_packet *packet);
struct dgram_mailslot_handler *dgram_mailslot_find(struct nbt_dgram_socket *dgmsock,
const char *mailslot_name);
struct dgram_mailslot_handler *dgram_mailslot_listen(struct nbt_dgram_socket *dgmsock,
const char *mailslot_name,
dgram_mailslot_handler_t handler,
void *private);
struct dgram_mailslot_handler *dgram_mailslot_temp(struct nbt_dgram_socket *dgmsock,
const char *mailslot_name,
dgram_mailslot_handler_t handler,
void *private);
NTSTATUS dgram_mailslot_send(struct nbt_dgram_socket *dgmsock,
enum dgram_msg_type msg_type,
const char *mailslot_name,
struct nbt_name *dest_name,
const char *dest_address,
struct nbt_name *src_name,
DATA_BLOB *request);
NTSTATUS dgram_mailslot_netlogon_send(struct nbt_dgram_socket *dgmsock,
struct nbt_name *dest_name,
const char *dest_address,
struct nbt_name *src_name,
struct nbt_netlogon_packet *request);
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