winsrepl.h

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/*
   Unix SMB/CIFS implementation.

   structures for WINS replication client 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 3 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, see <http://www.gnu.org/licenses/>.
*/

#include "librpc/gen_ndr/nbt.h"
#include "librpc/gen_ndr/winsrepl.h"

/*
  main context structure for the wins replication client library
*/
struct wrepl_socket {
	struct socket_context *sock;
	struct packet_context *packet;

	struct {
		struct event_context *ctx;
		struct fd_event *fde;
	} event;

	/* a queue of replies waiting to be received */
	struct wrepl_request *recv_queue;

	/* the default timeout for requests, 0 means no timeout */
#define WREPL_SOCKET_REQUEST_TIMEOUT	(60)
	uint32_t request_timeout;

	/* counter for request timeouts, after 2 timeouts the socket is marked as dead */
	uint32_t timeout_count;

	/* remember is the socket is dead */
	bool dead;

	/* remember if we need to free the wrepl_socket at the end of wrepl_socket_dead() */
	bool free_skipped;

	struct smb_iconv_convenience *iconv_convenience;
};

struct wrepl_send_ctrl {
	bool send_only;
	bool disconnect_after_send;
};

enum wrepl_request_state {
	WREPL_REQUEST_INIT  = 0,
	WREPL_REQUEST_RECV  = 1,
	WREPL_REQUEST_DONE  = 2,
	WREPL_REQUEST_ERROR = 3
};

/*
  a WINS replication request
*/
struct wrepl_request {
	struct wrepl_request *next, *prev;
	struct wrepl_socket *wrepl_socket;

	enum wrepl_request_state state;
	bool trigger;
	NTSTATUS status;

	struct timed_event *te;

	struct wrepl_packet *packet;

	struct {
		void (*fn)(struct wrepl_request *);
		void *private;
	} async;
};


/*
  setup an association
*/
struct wrepl_associate {
	struct {
		uint32_t assoc_ctx;
	} out;
};

/*
  setup an association
*/
struct wrepl_associate_stop {
	struct {
		uint32_t assoc_ctx;
		uint32_t reason;
	} in;
};

/*
  pull the partner table
*/
struct wrepl_pull_table {
	struct {
		uint32_t assoc_ctx;
	} in;
	struct {
		uint32_t num_partners;
		struct wrepl_wins_owner *partners;
	} out;
};

#define WREPL_NAME_TYPE(flags) (flags & WREPL_FLAGS_RECORD_TYPE)
#define WREPL_NAME_STATE(flags) ((flags & WREPL_FLAGS_RECORD_STATE)>>2)
#define WREPL_NAME_NODE(flags) ((flags & WREPL_FLAGS_NODE_TYPE)>>5)
#define WREPL_NAME_IS_STATIC(flags) ((flags & WREPL_FLAGS_IS_STATIC)?true:false)

#define WREPL_NAME_FLAGS(type, state, node, is_static) \
	(type | (state << 2) | (node << 5) | \
	 (is_static ? WREPL_FLAGS_IS_STATIC : 0))

/*
  a full pull replication
*/
struct wrepl_pull_names {
	struct {
		uint32_t assoc_ctx;
		struct wrepl_wins_owner partner;
	} in;
	struct {
		uint32_t num_names;
		struct wrepl_name {
			struct nbt_name name;
			enum wrepl_name_type type;
			enum wrepl_name_state state;
			enum wrepl_name_node node;
			bool is_static;
			uint32_t raw_flags;
			uint64_t version_id;
			const char *owner;
			uint32_t num_addresses;
			struct wrepl_address {
				const char *owner;
				const char *address;
			} *addresses;
		} *names;
	} out;
};

struct resolve_context;

#include "libcli/wrepl/winsrepl_proto.h"