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  * $FreeBSD$
   31  */
   32 
   33 /* This code generates debugging traces to the radix code. */
   34 
   35 #include <sys/param.h>
   36 #include <sys/systm.h>
   37 #include <sys/socket.h>
   38 
   39 #include <net/route.h>
   40 
   41 int     at_inithead(void **head, int off);
   42 
   43 #define HEXBUF_LEN      256
   44 
   45 static const char *
   46 prsockaddr(void *v, char *hexbuf)
   47 {
   48         char *bp = &hexbuf[0];
   49         u_char *cp = v;
   50 
   51         if (v != NULL) {
   52                 int len = *cp;
   53                 u_char *cplim = cp + len;
   54 
   55                 /* return: "(len) hexdump" */
   56 
   57                 bp += sprintf(bp, "(%d)", len);
   58                 for (cp++; cp < cplim && bp < hexbuf + (HEXBUF_LEN - 4);
   59                     cp++) {
   60                         *bp++ = "0123456789abcdef"[*cp / 16];
   61                         *bp++ = "0123456789abcdef"[*cp % 16];
   62                 }
   63         } else
   64                 bp+= sprintf(bp, "null");
   65         *bp = '\0';
   66         return (hexbuf);
   67 }
   68 
   69 static struct radix_node *
   70 at_addroute(void *v_arg, void *n_arg, struct radix_node_head *head,
   71             struct radix_node *treenodes)
   72 {
   73         struct radix_node *rn;
   74         char hexbuf[HEXBUF_LEN];
   75 
   76         printf("at_addroute: v=%s\n", prsockaddr(v_arg, hexbuf));
   77         printf("at_addroute: n=%s\n", prsockaddr(n_arg, hexbuf));
   78         printf("at_addroute: head=%p treenodes=%p\n", (void *)head,
   79             (void *)treenodes);
   80 
   81         rn = rn_addroute(v_arg, n_arg, head, treenodes);
   82 
   83         printf("at_addroute: returns rn=%p\n", (void *)rn);
   84 
   85         return (rn);
   86 }
   87 
   88 static struct radix_node *
   89 at_matroute(void *v_arg, struct radix_node_head *head)
   90 {
   91         struct radix_node *rn;
   92         char hexbuf[HEXBUF_LEN];
   93 
   94         printf("at_matroute: v=%s\n", prsockaddr(v_arg, hexbuf));
   95         printf("at_matroute: head=%p\n", (void *)head);
   96 
   97         rn = rn_match(v_arg, head);
   98 
   99         printf("at_matroute: returnr rn=%p\n", (void *)rn);
  100 
  101         return (rn);
  102 }
  103 
  104 static struct radix_node *
  105 at_lookup(void *v_arg, void *m_arg, struct radix_node_head *head)
  106 {
  107         struct radix_node *rn;
  108         char hexbuf[HEXBUF_LEN];
  109 
  110         printf("at_lookup: v=%s\n", prsockaddr(v_arg, hexbuf));
  111         printf("at_lookup: n=%s\n", prsockaddr(m_arg, hexbuf));
  112         printf("at_lookup: head=%p\n", (void *)head);
  113 
  114         rn = rn_lookup(v_arg, m_arg, head);
  115 
  116         printf("at_lookup: returns rn=%p\n", (void *)rn);
  117 
  118         return (rn);
  119 }
  120 
  121 static struct radix_node *
  122 at_delroute(void *v_arg, void *netmask_arg, struct radix_node_head *head)
  123 {
  124         struct radix_node *rn;
  125         char hexbuf[HEXBUF_LEN];
  126 
  127         printf("at_delroute: v=%s\n", prsockaddr(v_arg, hexbuf));
  128         printf("at_delroute: n=%s\n", prsockaddr(netmask_arg, hexbuf));
  129         printf("at_delroute: head=%p\n", (void *)head);
  130 
  131         rn = rn_delete(v_arg, netmask_arg, head);
  132 
  133         printf("at_delroute: returns rn=%p\n", (void *)rn);
  134 
  135         return (rn);
  136 }
  137 
  138 /*
  139  * Initialize our routing tree with debugging hooks.
  140  */
  141 int
  142 at_inithead(void **head, int off)
  143 {
  144         struct radix_node_head *rnh;
  145 
  146         if (!rn_inithead(head, off))
  147                 return (0);
  148 
  149         rnh = *head;
  150         rnh->rnh_addaddr = at_addroute;
  151         rnh->rnh_deladdr = at_delroute;
  152         rnh->rnh_matchaddr = at_matroute;
  153         rnh->rnh_lookup = at_lookup;
  154         return (1);
  155 }

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