ifconfig.tproj/ifvlan.c

   1 /*
   2  * Copyright (c) 1999
   3  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by Bill Paul.
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  30  * THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/param.h>
  34 #define KERNEL_PRIVATE
  35 #include <sys/ioctl.h>
  36 #undef KERNEL_PRIVATE
  37 #include <sys/socket.h>
  38 #include <sys/sockio.h>
  39
  40 #include <stdlib.h>
  41 #include <unistd.h>
  42
  43 #include <net/ethernet.h>
  44 #include <net/if.h>
  45 #include <net/if_var.h>
  46 #include <net/if_vlan_var.h>
  47 #include <net/route.h>
  48
  49 #include <ctype.h>
  50 #include <stdio.h>
  51 #include <string.h>
  52 #include <stdlib.h>
  53 #include <unistd.h>
  54 #include <err.h>
  55 #include <errno.h>
  56
  57 #include "ifconfig.h"
  58
  59 static int                      __tag = 0;
  60 static int                      __have_tag = 0;
  61
  62 void
  63 vlan_status(int s, struct rt_addrinfo *info __unused)
  64 {
  65         struct vlanreq          vreq;
  66
  67         bzero((char *)&vreq, sizeof(struct vlanreq));
  68         ifr.ifr_data = (caddr_t)&vreq;
  69
  70         if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
  71                 return;
  72
  73         printf("\tvlan: %d parent interface: %s\n",
  74             vreq.vlr_tag, vreq.vlr_parent[0] == '\0' ?
  75             "<none>" : vreq.vlr_parent);
  76
  77         return;
  78 }
  79
  80 void
  81 setvlantag(const char *val, int d, int s, const struct afswtch  *afp)
  82 {
  83         u_int16_t               tag;
  84         struct vlanreq          vreq;
  85
  86         __tag = tag = atoi(val);
  87         __have_tag = 1;
  88
  89         bzero((char *)&vreq, sizeof(struct vlanreq));
  90         ifr.ifr_data = (caddr_t)&vreq;
  91
  92         if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
  93                 err(1, "SIOCGETVLAN");
  94
  95         vreq.vlr_tag = tag;
  96
  97         if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
  98                 err(1, "SIOCSETVLAN");
  99
 100         return;
 101 }
 102
 103 void
 104 setvlandev(const char *val, int d, int s, const struct afswtch  *afp)
 105 {
 106         struct vlanreq          vreq;
 107
 108         if (!__have_tag)
 109                 errx(1, "must specify both vlan tag and device");
 110
 111         bzero((char *)&vreq, sizeof(struct vlanreq));
 112         ifr.ifr_data = (caddr_t)&vreq;
 113
 114         if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
 115                 err(1, "SIOCGETVLAN");
 116
 117         strncpy(vreq.vlr_parent, val, sizeof(vreq.vlr_parent));
 118         vreq.vlr_tag = __tag;
 119
 120         if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
 121                 err(1, "SIOCSETVLAN");
 122
 123         return;
 124 }
 125
 126 void
 127 unsetvlandev(const char *val, int d, int s, const struct afswtch *afp)
 128 {
 129         struct vlanreq          vreq;
 130
 131         bzero((char *)&vreq, sizeof(struct vlanreq));
 132         ifr.ifr_data = (caddr_t)&vreq;
 133
 134         if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1)
 135                 err(1, "SIOCGETVLAN");
 136
 137         bzero((char *)&vreq.vlr_parent, sizeof(vreq.vlr_parent));
 138         vreq.vlr_tag = 0;
 139
 140         if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1)
 141                 err(1, "SIOCSETVLAN");
 142
 143         return;
 144 }