1/* 2 * create_floppy_devices 3 * 4 * Create all possible floppy device based on the CMOS type. 5 * Based upon code from drivers/block/floppy.c 6 * 7 * Copyright(C) 2005, SUSE Linux Products GmbH 8 * 9 * Author: 10 * Hannes Reinecke <hare@suse.de> 11 * 12 * This program is free software; you can redistribute it and/or modify it 13 * under the terms of the GNU General Public License as published by the 14 * Free Software Foundation version 2 of the License. 15 */ 16 17#include <stdio.h> 18#include <stdlib.h> 19#include <sys/types.h> 20#include <sys/stat.h> 21#include <fcntl.h> 22#include <unistd.h> 23#include <string.h> 24#include <pwd.h> 25#include <grp.h> 26 27#include "../../udev.h" 28#include "../../udev_selinux.h" 29 30static char *table[] = { 31 "", "d360", "h1200", "u360", "u720", "h360", "h720", 32 "u1440", "u2880", "CompaQ", "h1440", "u1680", "h410", 33 "u820", "h1476", "u1722", "h420", "u830", "h1494", "u1743", 34 "h880", "u1040", "u1120", "h1600", "u1760", "u1920", 35 "u3200", "u3520", "u3840", "u1840", "u800", "u1600", 36 NULL 37}; 38 39static int t360[] = { 1, 0 }; 40static int t1200[] = { 2, 5, 6, 10, 12, 14, 16, 18, 20, 23, 0 }; 41static int t3in[] = { 8, 9, 26, 27, 28, 7, 11, 15, 19, 24, 25, 29, 31, 3, 4, 13, 17, 21, 22, 30, 0 }; 42static int *table_sup[] = { NULL, t360, t1200, t3in+5+8, t3in+5, t3in, t3in }; 43 44#ifdef USE_LOG 45void log_message(int priority, const char *format, ...) 46{ 47 va_list args; 48 static int udev_log = -1; 49 50 if (udev_log == -1) { 51 const char *value; 52 53 value = getenv("UDEV_LOG"); 54 if (value) 55 udev_log = log_priority(value); 56 else 57 udev_log = LOG_ERR; 58 } 59 60 if (priority > udev_log) 61 return; 62 63 va_start(args, format); 64 vsyslog(priority, format, args); 65 va_end(args); 66} 67#endif 68 69int main(int argc, char **argv) 70{ 71 char *dev; 72 char node[64]; 73 int type = 0, i, fdnum, c; 74 int major = 2, minor; 75 uid_t uid = 0; 76 gid_t gid = 0; 77 mode_t mode = 0660; 78 int create_nodes = 0; 79 int print_nodes = 0; 80 int is_err = 0; 81 82 while ((c = getopt(argc, argv, "cudm:U:G:M:t:")) != -1) { 83 switch (c) { 84 case 'c': 85 create_nodes = 1; 86 break; 87 case 'd': 88 print_nodes = 1; 89 break; 90 case 'U': 91 uid = lookup_user(optarg); 92 break; 93 case 'G': 94 gid = lookup_group(optarg); 95 break; 96 case 'M': 97 mode = strtol(optarg, NULL, 0); 98 mode = mode & 0666; 99 break; 100 case 'm': 101 major = strtol(optarg, NULL, 0); 102 break; 103 case 't': 104 type = strtol(optarg, NULL, 0); 105 break; 106 default: 107 is_err++; 108 break; 109 } 110 } 111 112 if (is_err || optind >= argc) { 113 printf("Usage: %s [OPTION] device\n" 114 " -c create\n" 115 " -d debug\n" 116 " -m Major number\n" 117 " -t floppy type number\n" 118 " -U device node user ownership\n" 119 " -G device node group owner\n" 120 " -M device node mode\n" 121 "\n", argv[0]); 122 return 1; 123 } 124 125 dev = argv[optind]; 126 if (dev[strlen(dev) - 3] != 'f' || dev[strlen(dev) -2 ] != 'd') { 127 fprintf(stderr,"Device '%s' is not a floppy device\n", dev); 128 return 1; 129 } 130 131 fdnum = strtol(dev + 2, NULL, 10); 132 if (fdnum < 0 || fdnum > 7) { 133 fprintf(stderr,"Floppy device number %d out of range (0-7)\n", fdnum); 134 return 1; 135 } 136 if (fdnum > 3) 137 fdnum += 128; 138 139 if (major < 1) { 140 fprintf(stderr,"Invalid major number %d\n", major); 141 return 1; 142 } 143 144 if (type < 0 || type > (int) sizeof(table)) { 145 fprintf(stderr,"Invalid CMOS type %d\n", type); 146 return 1; 147 } 148 149 if (type == 0) 150 return 0; 151 152 udev_config_init(); 153 selinux_init(); 154 155 i = 0; 156 while (table_sup[type][i]) { 157 sprintf(node, "%s%s", dev, table[table_sup[type][i]]); 158 minor = (table_sup[type][i] << 2) + fdnum; 159 if (print_nodes) 160 printf("%s b %d %d %d\n", node, mode, major, minor); 161 if (create_nodes) { 162 unlink(node); 163 selinux_setfscreatecon(node, NULL, S_IFBLK | mode); 164 mknod(node, S_IFBLK | mode, makedev(major,minor)); 165 selinux_resetfscreatecon(); 166 chown(node, uid, gid); 167 chmod(node, S_IFBLK | mode); 168 } 169 i++; 170 } 171 172 selinux_exit(); 173 return 0; 174} 175