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769070d502
datagrams. This adds the IDL to parse mailslot packets, plus mailslot dispatch and listener registration code. mailslots are used for UDP/138 browse and netlogon packets (This used to be commit f20e7e5200de736b3451d748ed716be638f93502)
119 lines
3.3 KiB
C
119 lines
3.3 KiB
C
/*
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Unix SMB/CIFS implementation.
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a raw async NBT DGRAM library
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Copyright (C) Andrew Tridgell 2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "librpc/gen_ndr/ndr_nbt.h"
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/*
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a nbt name request
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*/
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struct nbt_dgram_request {
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struct nbt_dgram_request *next, *prev;
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/* where to send the request */
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const char *dest_addr;
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int dest_port;
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/* the encoded request */
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DATA_BLOB encoded;
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};
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/*
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context structure for operations on dgram packets
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*/
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struct nbt_dgram_socket {
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struct socket_context *sock;
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struct event_context *event_ctx;
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/* the fd event */
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struct fd_event *fde;
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/* a queue of outgoing requests */
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struct nbt_dgram_request *send_queue;
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/* a list of mailslot handlers */
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struct dgram_mailslot_handler *mailslot_handlers;
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/* what to do with incoming request packets */
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struct {
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void (*handler)(struct nbt_dgram_socket *, struct nbt_dgram_packet *,
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const char *, int );
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void *private;
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} incoming;
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};
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/*
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the mailslot code keeps a list of mailslot handlers. A mailslot
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handler is a function that receives incoming packets for a specific
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mailslot name. When a caller needs to send a mailslot and wants to
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get a reply then it needs to register itself as listening for
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incoming packets on the reply mailslot
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*/
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typedef void (*dgram_mailslot_handler_t)(struct dgram_mailslot_handler *,
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struct nbt_dgram_packet *,
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const char *, int );
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struct dgram_mailslot_handler {
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struct dgram_mailslot_handler *next, *prev;
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struct nbt_dgram_socket *dgmsock;
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const char *mailslot_name;
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dgram_mailslot_handler_t handler;
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void *private;
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};
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/* prototypes */
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NTSTATUS nbt_dgram_send(struct nbt_dgram_socket *dgmsock,
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struct nbt_dgram_packet *packet,
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const char *dest_addr,
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int dest_port);
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NTSTATUS dgram_set_incoming_handler(struct nbt_dgram_socket *dgmsock,
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void (*handler)(struct nbt_dgram_socket *,
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struct nbt_dgram_packet *,
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const char *, int ),
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void *private);
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struct nbt_dgram_socket *nbt_dgram_socket_init(TALLOC_CTX *mem_ctx,
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struct event_context *event_ctx);
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const char *dgram_mailslot_name(struct nbt_dgram_packet *packet);
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struct dgram_mailslot_handler *dgram_mailslot_find(struct nbt_dgram_socket *dgmsock,
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const char *mailslot_name);
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struct dgram_mailslot_handler *dgram_mailslot_listen(struct nbt_dgram_socket *dgmsock,
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const char *mailslot_name,
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dgram_mailslot_handler_t handler,
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void *private);
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struct dgram_mailslot_handler *dgram_mailslot_temp(struct nbt_dgram_socket *dgmsock,
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const char *mailslot_name,
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dgram_mailslot_handler_t handler,
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void *private);
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