The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netinet6/scope6_var.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (C) 2000 WIDE Project.
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. Neither the name of the project nor the names of its contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  *      $KAME: scope6_var.h,v 1.4 2000/05/18 15:03:27 jinmei Exp $
   32  * $FreeBSD: releng/12.0/sys/netinet6/scope6_var.h 334672 2018-06-05 20:54:29Z ae $
   33  */
   34 
   35 #ifndef _NETINET6_SCOPE6_VAR_H_
   36 #define _NETINET6_SCOPE6_VAR_H_
   37 
   38 #ifdef _KERNEL
   39 #include <net/vnet.h>
   40 
   41 #define IPV6_ADDR_SCOPES_COUNT  16
   42 struct scope6_id {
   43         /*
   44          * 16 is correspondent to 4bit multicast scope field.
   45          * i.e. from node-local to global with some reserved/unassigned types.
   46          */
   47         uint32_t s6id_list[IPV6_ADDR_SCOPES_COUNT];
   48 };
   49 
   50 VNET_DECLARE(int, deembed_scopeid);
   51 #define V_deembed_scopeid       VNET(deembed_scopeid)
   52 
   53 void    scope6_init(void);
   54 struct scope6_id *scope6_ifattach(struct ifnet *);
   55 void    scope6_ifdetach(struct scope6_id *);
   56 int     scope6_ioctl(u_long cmd, caddr_t data, struct ifnet *);
   57 void    scope6_setdefault(struct ifnet *);
   58 int     scope6_get_default(struct scope6_id *);
   59 u_int32_t scope6_addr2default(struct in6_addr *);
   60 int     sa6_embedscope(struct sockaddr_in6 *, int);
   61 int     sa6_recoverscope(struct sockaddr_in6 *);
   62 int     sa6_checkzone(struct sockaddr_in6 *);
   63 int     sa6_checkzone_ifp(struct ifnet *, struct sockaddr_in6 *);
   64 int     in6_setscope(struct in6_addr *, struct ifnet *, u_int32_t *);
   65 int     in6_clearscope(struct in6_addr *);
   66 uint16_t in6_getscope(const struct in6_addr *);
   67 uint32_t in6_getscopezone(const struct ifnet *, int);
   68 void    in6_splitscope(const struct in6_addr *, struct in6_addr *, uint32_t *);
   69 struct ifnet* in6_getlinkifnet(uint32_t);
   70 #endif /* _KERNEL */
   71 
   72 #endif /* _NETINET6_SCOPE6_VAR_H_ */

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