FreeBSD/Linux Kernel Cross Reference
sys/netinet6/ip6_divert.h

     /*      $OpenBSD: ip6_divert.h,v 1.22 2022/10/17 14:49:02 mvs Exp $ */
     
     /*
      * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
      *
      * Permission to use, copy, modify, and distribute this software for any
      * purpose with or without fee is hereby granted, provided that the above
      * copyright notice and this permission notice appear in all copies.
      *
     * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     */
    
    #ifndef _IP6_DIVERT_H_
    #define _IP6_DIVERT_H_
    
    struct div6stat {
            u_long  divs_ipackets;  /* total input packets */
            u_long  divs_noport;    /* no socket on port */
            u_long  divs_fullsock;  /* not delivered, input socket full */
            u_long  divs_opackets;  /* total output packets */
            u_long  divs_errors;    /* generic errors */
    };
    
    /*
     * Names for divert sysctl objects
     */
    #define DIVERT6CTL_RECVSPACE    1       /* receive buffer space */
    #define DIVERT6CTL_SENDSPACE    2       /* send buffer space */
    #define DIVERT6CTL_STATS        3       /* divert statistics */
    #define DIVERT6CTL_MAXID        4
    
    #define DIVERT6CTL_NAMES { \
            { 0, 0 }, \
            { "recvspace",  CTLTYPE_INT }, \
            { "sendspace",  CTLTYPE_INT }, \
            { "stats",      CTLTYPE_STRUCT } \
    }
    
    #ifdef _KERNEL
    
    #include <sys/percpu.h>
    
    enum div6stat_counters {
            div6s_ipackets,
            div6s_noport,
            div6s_fullsock,
            div6s_opackets,
            div6s_errors,
            div6s_ncounters,
    };
    
    extern struct cpumem *div6counters;
    
    static inline void
    div6stat_inc(enum div6stat_counters c)
    {
            counters_inc(div6counters, c);
    }
    
    extern struct   inpcbtable      divb6table;
    
    extern const struct pr_usrreqs divert6_usrreqs;
    
    void     divert6_init(void);
    void     divert6_packet(struct mbuf *, int, u_int16_t);
    int      divert6_sysctl(int *, u_int, void *, size_t *, void *, size_t);
    int      divert6_attach(struct socket *, int, int);
    int      divert6_detach(struct socket *);
    void     divert6_lock(struct socket *);
    void     divert6_unlock(struct socket *);
    int      divert6_bind(struct socket *, struct mbuf *, struct proc *);
    int      divert6_shutdown(struct socket *);
    int      divert6_send(struct socket *, struct mbuf *, struct mbuf *,
                 struct mbuf *);
    #endif /* _KERNEL */
    
    #endif /* _IP6_DIVERT_H_ */

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