1e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt/* 2e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * dhcpcd - DHCP client daemon 3a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt * Copyright (c) 2006-2012 Roy Marples <roy@marples.name> 4e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * All rights reserved 5e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt 6e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * Redistribution and use in source and binary forms, with or without 7e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * modification, are permitted provided that the following conditions 8e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * are met: 9e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * 1. Redistributions of source code must retain the above copyright 10e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * notice, this list of conditions and the following disclaimer. 11e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * 2. Redistributions in binary form must reproduce the above copyright 12e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * notice, this list of conditions and the following disclaimer in the 13e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * documentation and/or other materials provided with the distribution. 14e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * 15e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt * SUCH DAMAGE. 26e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt */ 27e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt 28e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#include <errno.h> 29e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#include <stdio.h> 30a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt#include <stdlib.h> 31e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#include <string.h> 32a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt#include <syslog.h> 33e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt 34e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#include "common.h" 35e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#include "platform.h" 36e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt 37e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidtstatic const char *mproc = 38e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#if defined(__alpha__) 39e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "system type" 40e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__arm__) 41e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "Hardware" 42e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__avr32__) 43e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "cpu family" 44e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__bfin__) 45e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "BOARD Name" 46e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__cris__) 47e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "cpu model" 48e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__frv__) 49e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "System" 50e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__i386__) || defined(__x86_64__) 51e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "vendor_id" 52e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__ia64__) 53e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "vendor" 54e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__hppa__) 55e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "model" 56e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__m68k__) 57e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "MMU" 58e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__mips__) 59e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "system type" 60e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__powerpc__) || defined(__powerpc64__) 61e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "machine" 62e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__s390__) || defined(__s390x__) 63e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "Manufacturer" 64e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__sh__) 65e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "machine" 66e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(sparc) || defined(__sparc__) 67e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "cpu" 68e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#elif defined(__vax__) 69e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt "cpu" 70e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#else 71e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt NULL 72e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt#endif 73e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt ; 74e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt 75e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidtchar * 76e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidthardware_platform(void) 77e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt{ 78e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt FILE *fp; 79e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt char *buf, *p; 80e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt 81e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt if (mproc == NULL) { 82e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt errno = EINVAL; 83e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt return NULL; 84e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt } 85e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt 86e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt fp = fopen("/proc/cpuinfo", "r"); 87e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt if (fp == NULL) 88e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt return NULL; 89e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt 90e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt p = NULL; 91e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt while ((buf = get_line(fp))) { 92e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt if (strncmp(buf, mproc, strlen(mproc)) == 0) { 93e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt p = strchr(buf, ':'); 94e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt if (p != NULL && ++p != NULL) { 95e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt while (*p == ' ') 96e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt p++; 97e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt break; 98e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt } 99e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt } 100e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt } 101e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt fclose(fp); 102e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt 103e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt if (p == NULL) 104e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt errno = ESRCH; 105e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt return p; 106e86eee143ed21592f88a46623a81f71002430459Dmitry Shmidt} 107a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt 108a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidtstatic int 109a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidtcheck_proc_int(const char *path) 110a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt{ 111a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt FILE *fp; 112a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt char *buf; 113a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt 114a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt fp = fopen(path, "r"); 115a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt if (fp == NULL) 116a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt return -1; 117a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt buf = get_line(fp); 118a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt fclose(fp); 119a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt if (buf == NULL) 120a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt return -1; 121a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt return atoi(buf); 122a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt} 123a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt 124a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidtstatic const char *prefix = "/proc/sys/net/ipv6/conf"; 125a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt 126a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidtint 127a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidtcheck_ipv6(const char *ifname) 128a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt{ 129a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt int r; 130a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt char path[256]; 131a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt 132a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt if (ifname == NULL) 133a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt ifname = "all"; 134a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt 135a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt snprintf(path, sizeof(path), "%s/%s/accept_ra", prefix, ifname); 136a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt r = check_proc_int(path); 137a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt if (r != 1 && r != 2) { 138a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt syslog(LOG_WARNING, 139a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt "%s: not configured to accept IPv6 RAs", ifname); 140a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt return 0; 141a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt } 142a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt 143a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt if (r != 2) { 144a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt snprintf(path, sizeof(path), "%s/%s/forwarding", 145a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt prefix, ifname); 146a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt if (check_proc_int(path) != 0) { 147a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt syslog(LOG_WARNING, 148a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt "%s: configured as a router, not a host", ifname); 149a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt return 0; 150a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt } 151a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt } 152a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt return 1; 153a3a2260384a906e1674c7498c2f479e9f37bc503Dmitry Shmidt} 154