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/rpc/getnetconfig.c

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    1 /*-
    2  * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
    3  * Authors: Doug Rabson <dfr@rabson.org>
    4  * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  */
   27 
   28 #include "opt_inet6.h"
   29 
   30 #include <sys/cdefs.h>
   31 __FBSDID("$FreeBSD$");
   32 
   33 #include <sys/param.h>
   34 #include <sys/malloc.h>
   35 #include <sys/systm.h>
   36 
   37 #include <rpc/types.h>
   38 
   39 /*
   40  * For in-kernel use, we use a simple compiled-in configuration.
   41  */
   42 
   43 static struct netconfig netconfigs[] = {
   44 #ifdef INET6
   45         {
   46                 .nc_netid =     "udp6",
   47                 .nc_semantics = NC_TPI_CLTS,
   48                 .nc_flag =      NC_VISIBLE,
   49                 .nc_protofmly = "inet6",
   50                 .nc_proto =     "udp",
   51         },
   52         {
   53                 .nc_netid =     "tcp6",
   54                 .nc_semantics = NC_TPI_COTS_ORD,
   55                 .nc_flag =      NC_VISIBLE,
   56                 .nc_protofmly = "inet6",
   57                 .nc_proto =     "tcp",
   58         },
   59 #endif  
   60         {
   61                 .nc_netid =     "udp",
   62                 .nc_semantics = NC_TPI_CLTS,
   63                 .nc_flag =      NC_VISIBLE,
   64                 .nc_protofmly = "inet",
   65                 .nc_proto =     "udp",
   66         },
   67         {
   68                 .nc_netid =     "tcp",
   69                 .nc_semantics = NC_TPI_COTS_ORD,
   70                 .nc_flag =      NC_VISIBLE,
   71                 .nc_protofmly = "inet",
   72                 .nc_proto =     "tcp",
   73         },
   74         {
   75                 .nc_netid =     "local",
   76                 .nc_semantics = NC_TPI_COTS_ORD,
   77                 .nc_flag =      0,
   78                 .nc_protofmly = "loopback",
   79                 .nc_proto =     "",
   80         },
   81         {
   82                 .nc_netid =     NULL,
   83         }
   84 };
   85 
   86 void *
   87 setnetconfig(void)
   88 {
   89         struct netconfig **nconfp;
   90 
   91         nconfp = malloc(sizeof(struct netconfig *), M_RPC, M_WAITOK);
   92         *nconfp = netconfigs;
   93 
   94         return ((void *) nconfp);
   95 }
   96 
   97 struct netconfig *
   98 getnetconfig(void *handle)
   99 {
  100         struct netconfig **nconfp = (struct netconfig **) handle;
  101         struct netconfig *nconf;
  102 
  103         nconf = *nconfp;
  104         if (nconf->nc_netid == NULL)
  105                 return (NULL);
  106 
  107         (*nconfp)++;
  108 
  109         return (nconf);
  110 }
  111 
  112 struct netconfig *
  113 getnetconfigent(const char *netid)
  114 {
  115         struct netconfig *nconf;
  116 
  117         for (nconf = netconfigs; nconf->nc_netid; nconf++) {
  118                 if (!strcmp(netid, nconf->nc_netid))
  119                         return (nconf);
  120         }
  121 
  122         return (NULL);
  123 }
  124 
  125 void
  126 freenetconfigent(struct netconfig *nconf)
  127 {
  128 
  129 }
  130 
  131 int
  132 endnetconfig(void * handle)
  133 {
  134         struct netconfig **nconfp = (struct netconfig **) handle;
  135 
  136         free(nconfp, M_RPC);
  137         return (0);
  138 }

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