150 lines
4.0 KiB
C
150 lines
4.0 KiB
C
/*-
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* Copyright (c) 2008 Andrew Thompson. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef FSTACK
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__FBSDID("$FreeBSD$");
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#endif
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <net/if.h>
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#include <net/if_gre.h>
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#include <ctype.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <err.h>
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#include "ifconfig.h"
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#define GREBITS "\020\01ENABLE_CSUM\02ENABLE_SEQ"
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static void gre_status(int s);
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static void
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gre_status(int s)
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{
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uint32_t opts = 0;
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ifr.ifr_data = (caddr_t)&opts;
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#ifndef FSTACK
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if (ioctl(s, GREGKEY, &ifr) == 0)
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#else
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size_t offset = (char *)&(ifr.ifr_data) - (char *)&(ifr);
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size_t clen = sizeof(uint32_t);
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if (ioctl_va(s, GREGKEY, &ifr, 3, offset, ifr.ifr_data, clen) == 0)
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#endif
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if (opts != 0)
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printf("\tgrekey: 0x%x (%u)\n", opts, opts);
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opts = 0;
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#ifndef FSTACK
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if (ioctl(s, GREGOPTS, &ifr) != 0 || opts == 0)
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#else
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if (ioctl_va(s, GREGOPTS, &ifr, 3, offset, ifr.ifr_data, clen) != 0 || opts == 0)
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#endif
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return;
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printb("\toptions", opts, GREBITS);
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putchar('\n');
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}
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static void
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setifgrekey(const char *val, int dummy __unused, int s,
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const struct afswtch *afp)
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{
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uint32_t grekey = strtol(val, NULL, 0);
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strlcpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
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ifr.ifr_data = (caddr_t)&grekey;
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#ifndef FSTACK
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if (ioctl(s, GRESKEY, (caddr_t)&ifr) < 0)
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#else
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size_t offset = (char *)&(ifr.ifr_data) - (char *)&(ifr);
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size_t clen = sizeof(uint32_t);
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if (ioctl_va(s, GRESKEY, (caddr_t)&ifr, 3, offset, ifr.ifr_data, clen) < 0)
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#endif
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warn("ioctl (set grekey)");
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}
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static void
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setifgreopts(const char *val, int d, int s, const struct afswtch *afp)
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{
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uint32_t opts;
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ifr.ifr_data = (caddr_t)&opts;
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#ifndef FSTACK
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if (ioctl(s, GREGOPTS, &ifr) == -1) {
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#else
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size_t offset = (char *)&(ifr.ifr_data) - (char *)&(ifr);
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size_t clen = sizeof(uint32_t);
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if (ioctl_va(s, GREGOPTS, (caddr_t)&ifr, 3, offset, ifr.ifr_data, clen) == -1) {
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#endif
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warn("ioctl(GREGOPTS)");
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return;
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}
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if (d < 0)
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opts &= ~(-d);
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else
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opts |= d;
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#ifndef FSTACK
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if (ioctl(s, GRESOPTS, &ifr) == -1) {
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#else
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if (ioctl_va(s, GRESOPTS, (caddr_t)&ifr, 3, offset, ifr.ifr_data, clen) == -1) {
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#endif
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warn("ioctl(GIFSOPTS)");
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return;
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}
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}
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static struct cmd gre_cmds[] = {
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DEF_CMD_ARG("grekey", setifgrekey),
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DEF_CMD("enable_csum", GRE_ENABLE_CSUM, setifgreopts),
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DEF_CMD("-enable_csum",-GRE_ENABLE_CSUM,setifgreopts),
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DEF_CMD("enable_seq", GRE_ENABLE_SEQ, setifgreopts),
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DEF_CMD("-enable_seq",-GRE_ENABLE_SEQ, setifgreopts),
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};
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static struct afswtch af_gre = {
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.af_name = "af_gre",
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.af_af = AF_UNSPEC,
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.af_other_status = gre_status,
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};
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static __constructor void
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gre_ctor(void)
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{
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size_t i;
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for (i = 0; i < nitems(gre_cmds); i++)
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cmd_register(&gre_cmds[i]);
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af_register(&af_gre);
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}
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