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queue.h

/*
 * netlink/netfilter/queue.h  Netfilter Queue
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation version 2.1
 *    of the License.
 *
 * Copyright (c) 2007, 2008 Patrick McHardy <kaber@trash.net>
 */

#ifndef NETLINK_QUEUE_H_
#define NETLINK_QUEUE_H_

#include <netlink/netlink.h>

#ifdef __cplusplus
extern "C" {
#endif

struct nl_sock;
struct nlmsghdr;
struct nfnl_queue;

extern struct nl_object_ops queue_obj_ops;

enum nfnl_queue_copy_mode {
      NFNL_QUEUE_COPY_NONE,
      NFNL_QUEUE_COPY_META,
      NFNL_QUEUE_COPY_PACKET,
};

/* General */
extern struct nl_sock *       nfnl_queue_socket_alloc(void);

extern struct nfnl_queue *    nfnl_queue_alloc(void);

extern void             nfnl_queue_get(struct nfnl_queue *);
extern void             nfnl_queue_put(struct nfnl_queue *);

/* Attributes */
extern void             nfnl_queue_set_group(struct nfnl_queue *, uint16_t);
extern int              nfnl_queue_test_group(const struct nfnl_queue *);
extern uint16_t               nfnl_queue_get_group(const struct nfnl_queue *);

extern void             nfnl_queue_set_maxlen(struct nfnl_queue *, uint32_t);
extern int              nfnl_queue_test_maxlen(const struct nfnl_queue *);
extern uint32_t               nfnl_queue_get_maxlen(const struct nfnl_queue *);

extern void             nfnl_queue_set_copy_mode(struct nfnl_queue *,
                                           enum nfnl_queue_copy_mode);
extern int              nfnl_queue_test_copy_mode(const struct nfnl_queue *);
extern enum nfnl_queue_copy_mode nfnl_queue_get_copy_mode(const struct nfnl_queue *);

extern char *                 nfnl_queue_copy_mode2str(enum nfnl_queue_copy_mode,
                                           char *, size_t);
extern enum nfnl_queue_copy_mode nfnl_queue_str2copy_mode(const char *);

extern void             nfnl_queue_set_copy_range(struct nfnl_queue *,
                                            uint32_t);
extern int              nfnl_queue_test_copy_range(const struct nfnl_queue *);
extern uint32_t               nfnl_queue_get_copy_range(const struct nfnl_queue *);

extern int  nfnl_queue_build_pf_bind(uint8_t, struct nl_msg **);
extern int  nfnl_queue_pf_bind(struct nl_sock *, uint8_t);

extern int  nfnl_queue_build_pf_unbind(uint8_t, struct nl_msg **);
extern int  nfnl_queue_pf_unbind(struct nl_sock *, uint8_t);

extern int  nfnl_queue_build_create_request(const struct nfnl_queue *,
                                    struct nl_msg **);
extern int  nfnl_queue_create(struct nl_sock *,
                          const struct nfnl_queue *);

extern int  nfnl_queue_build_change_request(const struct nfnl_queue *,
                                    struct nl_msg **);
extern int  nfnl_queue_change(struct nl_sock *,
                          const struct nfnl_queue *);

extern int  nfnl_queue_build_delete_request(const struct nfnl_queue *,
                                    struct nl_msg **);
extern int  nfnl_queue_delete(struct nl_sock *,
                          const struct nfnl_queue *);

#ifdef __cplusplus
}
#endif

#endif


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