1 /*- 2 * Copyright (c) 2008 Andrew Thompson. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 17 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 19 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 21 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 22 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef lint 27 static const char rcsid[] = 28 "$FreeBSD$"; 29 #endif 30 31 #include <sys/param.h> 32 #include <sys/ioctl.h> 33 #include <sys/socket.h> 34 #include <sys/sockio.h> 35 36 #include <stdlib.h> 37 #include <unistd.h> 38 39 #include <net/ethernet.h> 40 #include <net/if.h> 41 #include <net/if_gre.h> 42 #include <net/route.h> 43 44 #include <ctype.h> 45 #include <stdio.h> 46 #include <string.h> 47 #include <stdlib.h> 48 #include <unistd.h> 49 #include <err.h> 50 #include <errno.h> 51 52 #include "ifconfig.h" 53 54 static void gre_status(int s); 55 56 static void 57 gre_status(int s) 58 { 59 int grekey = 0; 60 61 ifr.ifr_data = (caddr_t)&grekey; 62 if (ioctl(s, GREGKEY, &ifr) == 0) 63 if (grekey != 0) 64 printf("\tgrekey: %d\n", grekey); 65 } 66 67 static void 68 setifgrekey(const char *val, int dummy __unused, int s, 69 const struct afswtch *afp) 70 { 71 uint32_t grekey = atol(val); 72 73 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 74 ifr.ifr_data = (caddr_t)&grekey; 75 if (ioctl(s, GRESKEY, (caddr_t)&ifr) < 0) 76 warn("ioctl (set grekey)"); 77 } 78 79 static struct cmd gre_cmds[] = { 80 DEF_CMD_ARG("grekey", setifgrekey), 81 }; 82 static struct afswtch af_gre = { 83 .af_name = "af_gre", 84 .af_af = AF_UNSPEC, 85 .af_other_status = gre_status, 86 }; 87 88 static __constructor void 89 gre_ctor(void) 90 { 91 #define N(a) (sizeof(a) / sizeof(a[0])) 92 size_t i; 93 94 for (i = 0; i < N(gre_cmds); i++) 95 cmd_register(&gre_cmds[i]); 96 af_register(&af_gre); 97 #undef N 98 } 99