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/netatalk/at_rmx.c

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    1 /*
    2  * Copyright 1994, 1995 Massachusetts Institute of Technology
    3  *
    4  * Permission to use, copy, modify, and distribute this software and
    5  * its documentation for any purpose and without fee is hereby
    6  * granted, provided that both the above copyright notice and this
    7  * permission notice appear in all copies, that both the above
    8  * copyright notice and this permission notice appear in all
    9  * supporting documentation, and that the name of M.I.T. not be used
   10  * in advertising or publicity pertaining to distribution of the
   11  * software without specific, written prior permission.  M.I.T. makes
   12  * no representations about the suitability of this software for any
   13  * purpose.  It is provided "as is" without express or implied
   14  * warranty.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
   17  * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
   18  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
   19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
   20  * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   23  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   25  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   26  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  * at_rmx.c,v 1.13 1995/05/30 08:09:31 rgrimes Exp
   30  */
   31 
   32 /* This code generates debugging traces to the radix code */
   33 
   34 #include <sys/param.h>
   35 #include <sys/systm.h>
   36 #include <sys/kernel.h>
   37 #include <sys/queue.h>
   38 #include <sys/socket.h>
   39 #include <sys/socketvar.h>
   40 #include <sys/mbuf.h>
   41 #include <sys/syslog.h>
   42 
   43 #include <net/if.h>
   44 #include <net/route.h>
   45 
   46 #include <netatalk/at.h>
   47 #include <netatalk/at_extern.h>
   48 
   49 static char hexbuf[256];
   50 
   51 char *
   52 prsockaddr(void *v)
   53 {
   54         char *bp = &hexbuf[0];
   55         u_char *cp = v;
   56 
   57         if (v) {
   58                 int len = *cp;
   59                 u_char *cplim = cp + len;
   60 
   61                 /* return: "(len) hexdump" */
   62 
   63                 bp += sprintf(bp, "(%d)", len);
   64                 for (cp++; cp < cplim && bp < hexbuf+252; cp++) {
   65                         *bp++ = "0123456789abcdef"[*cp / 16];
   66                         *bp++ = "0123456789abcdef"[*cp % 16];
   67                 }
   68         } else {
   69                 bp+= sprintf(bp, "null");
   70         }
   71         *bp = '\0';
   72         
   73         return &hexbuf[0];
   74 }
   75 
   76 static struct radix_node *
   77 at_addroute(void *v_arg, void *n_arg, struct radix_node_head *head,
   78             struct radix_node *treenodes)
   79 {
   80         struct radix_node *rn;
   81 
   82         printf("at_addroute: v=%s\n", prsockaddr(v_arg));
   83         printf("at_addroute: n=%s\n", prsockaddr(n_arg));
   84         printf("at_addroute: head=%x treenodes=%x\n", head, treenodes);
   85 
   86         rn = rn_addroute(v_arg, n_arg, head, treenodes);
   87 
   88         printf("at_addroute: returns rn=%x\n", rn);
   89 
   90         return rn;
   91 }
   92 
   93 static struct radix_node *
   94 at_matroute(void *v_arg, struct radix_node_head *head)
   95 {
   96         struct radix_node *rn;
   97 
   98         printf("at_matroute: v=%s\n", prsockaddr(v_arg));
   99         printf("at_matroute: head=%x\n", head);
  100 
  101         rn = rn_match(v_arg, head);
  102 
  103         printf("at_matroute: returns rn=%x\n", rn);
  104 
  105         return rn;
  106 }
  107 
  108 static struct radix_node *
  109 at_lookup(void *v_arg, void *m_arg, struct radix_node_head *head)
  110 {
  111         struct radix_node *rn;
  112 
  113         printf("at_lookup: v=%s\n", prsockaddr(v_arg));
  114         printf("at_lookup: n=%s\n", prsockaddr(m_arg));
  115         printf("at_lookup: head=%x\n", head);
  116 
  117         rn = rn_lookup(v_arg, m_arg, head);
  118 
  119         printf("at_lookup: returns rn=%x\n", rn);
  120 
  121         return rn;
  122 }
  123 
  124 static struct radix_node *  
  125 at_delroute(void *v_arg, void *netmask_arg, struct radix_node_head *head)
  126 {
  127         struct radix_node *rn;
  128 
  129         printf("at_delroute: v=%s\n", prsockaddr(v_arg));
  130         printf("at_delroute: n=%s\n", prsockaddr(netmask_arg));
  131         printf("at_delroute: head=%x\n", head);
  132 
  133         rn = rn_delete(v_arg, netmask_arg, head);
  134 
  135         printf("at_delroute: returns rn=%x\n", rn);
  136 
  137         return rn;
  138 }
  139 
  140 /*
  141  * Initialize our routing tree with debugging hooks.
  142  */
  143 int
  144 at_inithead(void **head, int off)
  145 {
  146         struct radix_node_head *rnh;
  147 
  148         if(!rn_inithead(head, off))
  149                 return 0;
  150 
  151         rnh = *head;
  152         rnh->rnh_addaddr = at_addroute;
  153         rnh->rnh_deladdr = at_delroute;
  154         rnh->rnh_matchaddr = at_matroute;
  155         rnh->rnh_lookup = at_lookup;
  156         return 1;
  157 }
  158 

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