FreeBSD/Linux Kernel Cross Reference
sys/netinet/ip_divert.h

     /*-
      * Copyright (c) 2003 Sam Leffler, Errno Consulting
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer,
     *    without modification.
     * 2. Redistributions in binary form must reproduce at minimum a disclaimer
     *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
     *    redistribution must be conditioned upon including a substantially
     *    similar Disclaimer requirement for further binary redistribution.
     * 3. Neither the names of the above-listed copyright holders nor the names
     *    of any contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * NO WARRANTY
     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
     * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
     * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
     * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
     * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     * THE POSSIBILITY OF SUCH DAMAGES.
     *
     * $FreeBSD$
     */
    
    #ifndef _NETINET_IP_DIVERT_H_
    #define _NETINET_IP_DIVERT_H_
    
    /*
     * Divert socket definitions.
     */
    
    struct divert_tag {
            u_int32_t       info;           /* port & flags */
            u_int16_t       cookie;         /* ipfw rule number */
    };
    
    /*
     * Return the divert cookie associated with the mbuf; if any.
     */
    static __inline u_int16_t
    divert_cookie(struct m_tag *mtag)
    {
            return ((struct divert_tag *)(mtag+1))->cookie;
    }
    static __inline u_int16_t
    divert_find_cookie(struct mbuf *m)
    {
            struct m_tag *mtag = m_tag_find(m, PACKET_TAG_DIVERT, NULL);
            return mtag ? divert_cookie(mtag) : 0;
    }
    
    /*
     * Return the divert info associated with the mbuf; if any.
     */
    static __inline u_int32_t
    divert_info(struct m_tag *mtag)
    {
            return ((struct divert_tag *)(mtag+1))->info;
    }
    static __inline u_int32_t
    divert_find_info(struct mbuf *m)
    {
            struct m_tag *mtag = m_tag_find(m, PACKET_TAG_DIVERT, NULL);
            return mtag ? divert_info(mtag) : 0;
    }
    
    extern  void div_init(void);
    extern  void div_input(struct mbuf *, int);
    extern  void div_ctlinput(int, struct sockaddr *, void *);
    extern  void divert_packet(struct mbuf *m, int incoming);
    extern  struct mbuf *divert_clone(struct mbuf *);
    extern struct pr_usrreqs div_usrreqs;
    #endif /* _NETINET_IP_DIVERT_H_ */

Cache object: 849a8511ca3ee3d3cef5e048fd536688