1 | /*
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2 | * pfsck --- A generic, parallelizing front-end for the fsck program.
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3 | * It will automatically try to run fsck programs in parallel if the
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4 | * devices are on separate spindles. It is based on the same ideas as
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5 | * the generic front end for fsck by David Engel and Fred van Kempen,
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6 | * but it has been completely rewritten from scratch to support
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7 | * parallel execution.
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8 | *
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9 | * Written by Theodore Ts'o, <tytso@mit.edu>
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10 | *
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11 | * Miquel van Smoorenburg (miquels@drinkel.ow.org) 20-Oct-1994:
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12 | * o Changed -t fstype to behave like with mount when -A (all file
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13 | * systems) or -M (like mount) is specified.
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14 | * o fsck looks if it can find the fsck.type program to decide
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15 | * if it should ignore the fs type. This way more fsck programs
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16 | * can be added without changing this front-end.
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17 | * o -R flag skip root file system.
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18 | *
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19 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
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20 | * 2001, 2002, 2003, 2004, 2005 by Theodore Ts'o.
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21 | *
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22 | * %Begin-Header%
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23 | * This file may be redistributed under the terms of the GNU Public
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24 | * License.
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25 | * %End-Header%
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26 | */
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27 |
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28 | #include <sys/types.h>
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29 | #include <sys/wait.h>
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30 | #include <sys/stat.h>
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31 | #include <limits.h>
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32 | #include <stdio.h>
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33 | #include <ctype.h>
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34 | #include <string.h>
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35 | #include <time.h>
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36 | #include <stdlib.h>
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37 | #include <errno.h>
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38 | #include <paths.h>
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39 | #include <unistd.h>
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40 | #include <errno.h>
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41 | #include <signal.h>
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42 |
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43 | #include "fsck.h"
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44 | #include "blkid/blkid.h"
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45 |
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46 | #include "e2fsbb.h"
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47 |
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48 | #include "busybox.h"
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49 |
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50 | #ifndef _PATH_MNTTAB
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51 | #define _PATH_MNTTAB "/etc/fstab"
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52 | #endif
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53 |
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54 | /*
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55 | * fsck.h
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56 | */
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57 |
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58 | #ifndef DEFAULT_FSTYPE
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59 | #define DEFAULT_FSTYPE "ext2"
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60 | #endif
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61 |
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62 | #define MAX_DEVICES 32
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63 | #define MAX_ARGS 32
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64 |
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65 | /*
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66 | * Internal structure for mount tabel entries.
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67 | */
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68 |
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69 | struct fs_info {
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70 | char *device;
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71 | char *mountpt;
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72 | char *type;
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73 | char *opts;
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74 | int freq;
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75 | int passno;
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76 | int flags;
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77 | struct fs_info *next;
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78 | };
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79 |
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80 | #define FLAG_DONE 1
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81 | #define FLAG_PROGRESS 2
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82 |
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83 | /*
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84 | * Structure to allow exit codes to be stored
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85 | */
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86 | struct fsck_instance {
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87 | int pid;
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88 | int flags;
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89 | int exit_status;
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90 | time_t start_time;
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91 | char * prog;
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92 | char * type;
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93 | char * device;
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94 | char * base_device;
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95 | struct fsck_instance *next;
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96 | };
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97 |
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98 | /*
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99 | * base_device.c
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100 | *
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101 | * Return the "base device" given a particular device; this is used to
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102 | * assure that we only fsck one partition on a particular drive at any
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103 | * one time. Otherwise, the disk heads will be seeking all over the
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104 | * place. If the base device can not be determined, return NULL.
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105 | *
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106 | * The base_device() function returns an allocated string which must
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107 | * be freed.
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108 | *
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109 | */
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110 |
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111 |
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112 | #ifdef CONFIG_FEATURE_DEVFS
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113 | /*
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114 | * Required for the uber-silly devfs /dev/ide/host1/bus2/target3/lun3
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115 | * pathames.
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116 | */
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117 | static const char * const devfs_hier[] = {
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118 | "host", "bus", "target", "lun", 0
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119 | };
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120 | #endif
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121 |
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122 | static char *base_device(const char *device)
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123 | {
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124 | char *str, *cp;
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125 | #ifdef CONFIG_FEATURE_DEVFS
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126 | const char * const *hier;
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127 | const char *disk;
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128 | int len;
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129 | #endif
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130 |
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131 | cp = str = bb_xstrdup(device);
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132 |
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133 | /* Skip over /dev/; if it's not present, give up. */
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134 | if (strncmp(cp, "/dev/", 5) != 0)
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135 | goto errout;
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136 | cp += 5;
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137 |
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138 | #if 0 /* this is for old stuff no one uses anymore ? */
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139 | /* Skip over /dev/dsk/... */
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140 | if (strncmp(cp, "dsk/", 4) == 0)
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141 | cp += 4;
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142 | #endif
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143 |
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144 | /*
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145 | * For md devices, we treat them all as if they were all
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146 | * on one disk, since we don't know how to parallelize them.
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147 | */
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148 | if (cp[0] == 'm' && cp[1] == 'd') {
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149 | *(cp+2) = 0;
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150 | return str;
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151 | }
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152 |
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153 | /* Handle DAC 960 devices */
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154 | if (strncmp(cp, "rd/", 3) == 0) {
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155 | cp += 3;
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156 | if (cp[0] != 'c' || cp[2] != 'd' ||
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157 | !isdigit(cp[1]) || !isdigit(cp[3]))
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158 | goto errout;
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159 | *(cp+4) = 0;
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160 | return str;
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161 | }
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162 |
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163 | /* Now let's handle /dev/hd* and /dev/sd* devices.... */
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164 | if ((cp[0] == 'h' || cp[0] == 's') && (cp[1] == 'd')) {
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165 | cp += 2;
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166 | /* If there's a single number after /dev/hd, skip it */
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167 | if (isdigit(*cp))
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168 | cp++;
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169 | /* What follows must be an alpha char, or give up */
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170 | if (!isalpha(*cp))
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171 | goto errout;
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172 | *(cp + 1) = 0;
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173 | return str;
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174 | }
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175 |
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176 | #ifdef CONFIG_FEATURE_DEVFS
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177 | /* Now let's handle devfs (ugh) names */
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178 | len = 0;
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179 | if (strncmp(cp, "ide/", 4) == 0)
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180 | len = 4;
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181 | if (strncmp(cp, "scsi/", 5) == 0)
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182 | len = 5;
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183 | if (len) {
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184 | cp += len;
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185 | /*
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186 | * Now we proceed down the expected devfs hierarchy.
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187 | * i.e., .../host1/bus2/target3/lun4/...
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188 | * If we don't find the expected token, followed by
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189 | * some number of digits at each level, abort.
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190 | */
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191 | for (hier = devfs_hier; *hier; hier++) {
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192 | len = strlen(*hier);
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193 | if (strncmp(cp, *hier, len) != 0)
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194 | goto errout;
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195 | cp += len;
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196 | while (*cp != '/' && *cp != 0) {
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197 | if (!isdigit(*cp))
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198 | goto errout;
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199 | cp++;
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200 | }
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201 | cp++;
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202 | }
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203 | *(cp - 1) = 0;
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204 | return str;
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205 | }
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206 |
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207 | /* Now handle devfs /dev/disc or /dev/disk names */
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208 | disk = 0;
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209 | if (strncmp(cp, "discs/", 6) == 0)
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210 | disk = "disc";
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211 | else if (strncmp(cp, "disks/", 6) == 0)
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212 | disk = "disk";
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213 | if (disk) {
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214 | cp += 6;
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215 | if (strncmp(cp, disk, 4) != 0)
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216 | goto errout;
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217 | cp += 4;
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218 | while (*cp != '/' && *cp != 0) {
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219 | if (!isdigit(*cp))
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220 | goto errout;
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221 | cp++;
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222 | }
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223 | *cp = 0;
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224 | return str;
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225 | }
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226 | #endif
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227 |
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228 | errout:
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229 | free(str);
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230 | return NULL;
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231 | }
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232 |
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233 |
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234 | static const char * const ignored_types[] = {
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235 | "ignore",
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236 | "iso9660",
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237 | "nfs",
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238 | "proc",
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239 | "sw",
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240 | "swap",
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241 | "tmpfs",
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242 | "devpts",
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243 | NULL
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244 | };
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245 |
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246 | static const char * const really_wanted[] = {
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247 | "minix",
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248 | "ext2",
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249 | "ext3",
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250 | "jfs",
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251 | "reiserfs",
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252 | "xiafs",
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253 | "xfs",
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254 | NULL
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255 | };
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256 |
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257 | #define BASE_MD "/dev/md"
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258 |
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259 | /*
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260 | * Global variables for options
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261 | */
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262 | static char *devices[MAX_DEVICES];
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263 | static char *args[MAX_ARGS];
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264 | static int num_devices, num_args;
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265 |
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266 | static int verbose;
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267 | static int doall;
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268 | static int noexecute;
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269 | static int serialize;
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270 | static int skip_root;
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271 | static int like_mount;
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272 | static int notitle;
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273 | static int parallel_root;
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274 | static int progress;
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275 | static int progress_fd;
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276 | static int force_all_parallel;
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277 | static int num_running;
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278 | static int max_running;
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279 | static volatile int cancel_requested;
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280 | static int kill_sent;
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281 | static char *fstype;
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282 | static struct fs_info *filesys_info, *filesys_last;
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283 | static struct fsck_instance *instance_list;
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284 | static char *fsck_path;
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285 | static blkid_cache cache;
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286 |
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287 | static char *string_copy(const char *s)
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288 | {
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289 | char *ret;
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290 |
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291 | if (!s)
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292 | return 0;
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293 | ret = strdup(s);
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294 | return ret;
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295 | }
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296 |
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297 | static int string_to_int(const char *s)
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298 | {
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299 | long l;
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300 | char *p;
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301 |
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302 | l = strtol(s, &p, 0);
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303 | if (*p || l == LONG_MIN || l == LONG_MAX || l < 0 || l > INT_MAX)
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304 | return -1;
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305 | else
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306 | return (int) l;
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307 | }
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308 |
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309 | static char *skip_over_blank(char *cp)
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310 | {
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311 | while (*cp && isspace(*cp))
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312 | cp++;
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313 | return cp;
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314 | }
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315 |
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316 | static char *skip_over_word(char *cp)
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317 | {
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318 | while (*cp && !isspace(*cp))
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319 | cp++;
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320 | return cp;
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321 | }
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322 |
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323 | static void strip_line(char *line)
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324 | {
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325 | char *p;
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326 |
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327 | while (*line) {
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328 | p = line + strlen(line) - 1;
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329 | if ((*p == '\n') || (*p == '\r'))
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330 | *p = 0;
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331 | else
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332 | break;
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333 | }
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334 | }
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335 |
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336 | static char *parse_word(char **buf)
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337 | {
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338 | char *word, *next;
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339 |
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340 | word = *buf;
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341 | if (*word == 0)
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342 | return 0;
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343 |
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344 | word = skip_over_blank(word);
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345 | next = skip_over_word(word);
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346 | if (*next)
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347 | *next++ = 0;
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348 | *buf = next;
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349 | return word;
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350 | }
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351 |
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352 | static void parse_escape(char *word)
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353 | {
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354 | char *q, c;
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355 | const char *p;
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356 |
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357 | if (!word)
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358 | return;
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359 |
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360 | for (p = q = word; *p; q++) {
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361 | c = *p++;
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362 | if (c != '\\') {
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363 | *q = c;
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364 | } else {
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365 | *q = bb_process_escape_sequence(&p);
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366 | }
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367 | }
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368 | *q = 0;
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369 | }
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370 |
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371 | static void free_instance(struct fsck_instance *i)
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372 | {
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373 | if (i->prog)
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374 | free(i->prog);
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375 | if (i->device)
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376 | free(i->device);
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377 | if (i->base_device)
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378 | free(i->base_device);
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379 | free(i);
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380 | return;
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381 | }
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382 |
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383 | static struct fs_info *create_fs_device(const char *device, const char *mntpnt,
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384 | const char *type, const char *opts,
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385 | int freq, int passno)
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386 | {
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387 | struct fs_info *fs;
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388 |
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389 | if (!(fs = malloc(sizeof(struct fs_info))))
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390 | return NULL;
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391 |
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392 | fs->device = string_copy(device);
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393 | fs->mountpt = string_copy(mntpnt);
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394 | fs->type = string_copy(type);
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395 | fs->opts = string_copy(opts ? opts : "");
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396 | fs->freq = freq;
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397 | fs->passno = passno;
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398 | fs->flags = 0;
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399 | fs->next = NULL;
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400 |
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401 | if (!filesys_info)
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402 | filesys_info = fs;
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403 | else
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404 | filesys_last->next = fs;
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405 | filesys_last = fs;
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406 |
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407 | return fs;
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408 | }
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409 |
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410 |
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411 |
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412 | static int parse_fstab_line(char *line, struct fs_info **ret_fs)
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413 | {
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414 | char *dev, *device, *mntpnt, *type, *opts, *freq, *passno, *cp;
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415 | struct fs_info *fs;
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416 |
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417 | *ret_fs = 0;
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418 | strip_line(line);
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419 | if ((cp = strchr(line, '#')))
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420 | *cp = 0; /* Ignore everything after the comment char */
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421 | cp = line;
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422 |
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423 | device = parse_word(&cp);
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424 | mntpnt = parse_word(&cp);
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425 | type = parse_word(&cp);
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426 | opts = parse_word(&cp);
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427 | freq = parse_word(&cp);
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428 | passno = parse_word(&cp);
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429 |
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430 | if (!device)
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431 | return 0; /* Allow blank lines */
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432 |
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433 | if (!mntpnt || !type)
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434 | return -1;
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435 |
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436 | parse_escape(device);
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437 | parse_escape(mntpnt);
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438 | parse_escape(type);
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439 | parse_escape(opts);
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440 | parse_escape(freq);
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441 | parse_escape(passno);
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442 |
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443 | dev = blkid_get_devname(cache, device, NULL);
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444 | if (dev)
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445 | device = dev;
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446 |
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447 | if (strchr(type, ','))
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448 | type = 0;
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449 |
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450 | fs = create_fs_device(device, mntpnt, type ? type : "auto", opts,
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451 | freq ? atoi(freq) : -1,
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452 | passno ? atoi(passno) : -1);
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453 | if (dev)
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454 | free(dev);
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455 |
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456 | if (!fs)
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457 | return -1;
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458 | *ret_fs = fs;
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459 | return 0;
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460 | }
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461 |
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462 | static void interpret_type(struct fs_info *fs)
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463 | {
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464 | char *t;
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465 |
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466 | if (strcmp(fs->type, "auto") != 0)
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467 | return;
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468 | t = blkid_get_tag_value(cache, "TYPE", fs->device);
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469 | if (t) {
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470 | free(fs->type);
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471 | fs->type = t;
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472 | }
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473 | }
|
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474 |
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475 | /*
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476 | * Load the filesystem database from /etc/fstab
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477 | */
|
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478 | static void load_fs_info(const char *filename)
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479 | {
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480 | FILE *f;
|
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481 | char buf[1024];
|
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482 | int lineno = 0;
|
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483 | int old_fstab = 1;
|
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484 | struct fs_info *fs;
|
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485 |
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486 | if ((f = fopen(filename, "r")) == NULL) {
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487 | bb_perror_msg("WARNING: couldn't open %s", filename);
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488 | return;
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489 | }
|
---|
490 | while (!feof(f)) {
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491 | lineno++;
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492 | if (!fgets(buf, sizeof(buf), f))
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493 | break;
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494 | buf[sizeof(buf)-1] = 0;
|
---|
495 | if (parse_fstab_line(buf, &fs) < 0) {
|
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496 | bb_error_msg("WARNING: bad format "
|
---|
497 | "on line %d of %s\n", lineno, filename);
|
---|
498 | continue;
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---|
499 | }
|
---|
500 | if (!fs)
|
---|
501 | continue;
|
---|
502 | if (fs->passno < 0)
|
---|
503 | fs->passno = 0;
|
---|
504 | else
|
---|
505 | old_fstab = 0;
|
---|
506 | }
|
---|
507 |
|
---|
508 | fclose(f);
|
---|
509 |
|
---|
510 | if (old_fstab) {
|
---|
511 | fputs("\007\007\007"
|
---|
512 | "WARNING: Your /etc/fstab does not contain the fsck passno\n"
|
---|
513 | " field. I will kludge around things for you, but you\n"
|
---|
514 | " should fix your /etc/fstab file as soon as you can.\n\n", stderr);
|
---|
515 |
|
---|
516 | for (fs = filesys_info; fs; fs = fs->next) {
|
---|
517 | fs->passno = 1;
|
---|
518 | }
|
---|
519 | }
|
---|
520 | }
|
---|
521 |
|
---|
522 | /* Lookup filesys in /etc/fstab and return the corresponding entry. */
|
---|
523 | static struct fs_info *lookup(char *filesys)
|
---|
524 | {
|
---|
525 | struct fs_info *fs;
|
---|
526 |
|
---|
527 | /* No filesys name given. */
|
---|
528 | if (filesys == NULL)
|
---|
529 | return NULL;
|
---|
530 |
|
---|
531 | for (fs = filesys_info; fs; fs = fs->next) {
|
---|
532 | if (!strcmp(filesys, fs->device) ||
|
---|
533 | (fs->mountpt && !strcmp(filesys, fs->mountpt)))
|
---|
534 | break;
|
---|
535 | }
|
---|
536 |
|
---|
537 | return fs;
|
---|
538 | }
|
---|
539 |
|
---|
540 | /* Find fsck program for a given fs type. */
|
---|
541 | static char *find_fsck(char *type)
|
---|
542 | {
|
---|
543 | char *s;
|
---|
544 | const char *tpl;
|
---|
545 | char *p = string_copy(fsck_path);
|
---|
546 | struct stat st;
|
---|
547 |
|
---|
548 | /* Are we looking for a program or just a type? */
|
---|
549 | tpl = (strncmp(type, "fsck.", 5) ? "%s/fsck.%s" : "%s/%s");
|
---|
550 |
|
---|
551 | for(s = strtok(p, ":"); s; s = strtok(NULL, ":")) {
|
---|
552 | s = bb_xasprintf(tpl, s, type);
|
---|
553 | if (stat(s, &st) == 0) break;
|
---|
554 | free(s);
|
---|
555 | }
|
---|
556 | free(p);
|
---|
557 | return(s);
|
---|
558 | }
|
---|
559 |
|
---|
560 | static int progress_active(void)
|
---|
561 | {
|
---|
562 | struct fsck_instance *inst;
|
---|
563 |
|
---|
564 | for (inst = instance_list; inst; inst = inst->next) {
|
---|
565 | if (inst->flags & FLAG_DONE)
|
---|
566 | continue;
|
---|
567 | if (inst->flags & FLAG_PROGRESS)
|
---|
568 | return 1;
|
---|
569 | }
|
---|
570 | return 0;
|
---|
571 | }
|
---|
572 |
|
---|
573 | /*
|
---|
574 | * Execute a particular fsck program, and link it into the list of
|
---|
575 | * child processes we are waiting for.
|
---|
576 | */
|
---|
577 | static int execute(const char *type, const char *device, const char *mntpt,
|
---|
578 | int interactive)
|
---|
579 | {
|
---|
580 | char *s, *argv[80];
|
---|
581 | char *prog;
|
---|
582 | int argc, i;
|
---|
583 | struct fsck_instance *inst, *p;
|
---|
584 | pid_t pid;
|
---|
585 |
|
---|
586 | inst = malloc(sizeof(struct fsck_instance));
|
---|
587 | if (!inst)
|
---|
588 | return ENOMEM;
|
---|
589 | memset(inst, 0, sizeof(struct fsck_instance));
|
---|
590 |
|
---|
591 | prog = bb_xasprintf("fsck.%s", type);
|
---|
592 | argv[0] = prog;
|
---|
593 | argc = 1;
|
---|
594 |
|
---|
595 | for (i=0; i <num_args; i++)
|
---|
596 | argv[argc++] = string_copy(args[i]);
|
---|
597 |
|
---|
598 | if (progress && !progress_active()) {
|
---|
599 | if ((strcmp(type, "ext2") == 0) ||
|
---|
600 | (strcmp(type, "ext3") == 0)) {
|
---|
601 | char tmp[80];
|
---|
602 | snprintf(tmp, 80, "-C%d", progress_fd);
|
---|
603 | argv[argc++] = string_copy(tmp);
|
---|
604 | inst->flags |= FLAG_PROGRESS;
|
---|
605 | }
|
---|
606 | }
|
---|
607 |
|
---|
608 | argv[argc++] = string_copy(device);
|
---|
609 | argv[argc] = 0;
|
---|
610 |
|
---|
611 | s = find_fsck(prog);
|
---|
612 | if (s == NULL) {
|
---|
613 | bb_error_msg("%s: not found", prog);
|
---|
614 | return ENOENT;
|
---|
615 | }
|
---|
616 |
|
---|
617 | if (verbose || noexecute) {
|
---|
618 | printf("[%s (%d) -- %s] ", s, num_running,
|
---|
619 | mntpt ? mntpt : device);
|
---|
620 | for (i=0; i < argc; i++)
|
---|
621 | printf("%s ", argv[i]);
|
---|
622 | printf("\n");
|
---|
623 | }
|
---|
624 |
|
---|
625 | /* Fork and execute the correct program. */
|
---|
626 | if (noexecute)
|
---|
627 | pid = -1;
|
---|
628 | else if ((pid = fork()) < 0) {
|
---|
629 | perror("fork");
|
---|
630 | return errno;
|
---|
631 | } else if (pid == 0) {
|
---|
632 | if (!interactive)
|
---|
633 | close(0);
|
---|
634 | (void) execv(s, argv);
|
---|
635 | bb_perror_msg_and_die("%s", argv[0]);
|
---|
636 | }
|
---|
637 |
|
---|
638 | for (i = 1; i < argc; i++)
|
---|
639 | free(argv[i]);
|
---|
640 |
|
---|
641 | free(s);
|
---|
642 | inst->pid = pid;
|
---|
643 | inst->prog = prog;
|
---|
644 | inst->type = string_copy(type);
|
---|
645 | inst->device = string_copy(device);
|
---|
646 | inst->base_device = base_device(device);
|
---|
647 | inst->start_time = time(0);
|
---|
648 | inst->next = NULL;
|
---|
649 |
|
---|
650 | /*
|
---|
651 | * Find the end of the list, so we add the instance on at the end.
|
---|
652 | */
|
---|
653 | for (p = instance_list; p && p->next; p = p->next);
|
---|
654 |
|
---|
655 | if (p)
|
---|
656 | p->next = inst;
|
---|
657 | else
|
---|
658 | instance_list = inst;
|
---|
659 |
|
---|
660 | return 0;
|
---|
661 | }
|
---|
662 |
|
---|
663 | /*
|
---|
664 | * Send a signal to all outstanding fsck child processes
|
---|
665 | */
|
---|
666 | static int kill_all(int signum)
|
---|
667 | {
|
---|
668 | struct fsck_instance *inst;
|
---|
669 | int n = 0;
|
---|
670 |
|
---|
671 | for (inst = instance_list; inst; inst = inst->next) {
|
---|
672 | if (inst->flags & FLAG_DONE)
|
---|
673 | continue;
|
---|
674 | kill(inst->pid, signum);
|
---|
675 | n++;
|
---|
676 | }
|
---|
677 | return n;
|
---|
678 | }
|
---|
679 |
|
---|
680 | /*
|
---|
681 | * Wait for one child process to exit; when it does, unlink it from
|
---|
682 | * the list of executing child processes, and return it.
|
---|
683 | */
|
---|
684 | static struct fsck_instance *wait_one(int flags)
|
---|
685 | {
|
---|
686 | int status;
|
---|
687 | int sig;
|
---|
688 | struct fsck_instance *inst, *inst2, *prev;
|
---|
689 | pid_t pid;
|
---|
690 |
|
---|
691 | if (!instance_list)
|
---|
692 | return NULL;
|
---|
693 |
|
---|
694 | if (noexecute) {
|
---|
695 | inst = instance_list;
|
---|
696 | prev = 0;
|
---|
697 | #ifdef RANDOM_DEBUG
|
---|
698 | while (inst->next && (random() & 1)) {
|
---|
699 | prev = inst;
|
---|
700 | inst = inst->next;
|
---|
701 | }
|
---|
702 | #endif
|
---|
703 | inst->exit_status = 0;
|
---|
704 | goto ret_inst;
|
---|
705 | }
|
---|
706 |
|
---|
707 | /*
|
---|
708 | * gcc -Wall fails saving throw against stupidity
|
---|
709 | * (inst and prev are thought to be uninitialized variables)
|
---|
710 | */
|
---|
711 | inst = prev = NULL;
|
---|
712 |
|
---|
713 | do {
|
---|
714 | pid = waitpid(-1, &status, flags);
|
---|
715 | if (cancel_requested && !kill_sent) {
|
---|
716 | kill_all(SIGTERM);
|
---|
717 | kill_sent++;
|
---|
718 | }
|
---|
719 | if ((pid == 0) && (flags & WNOHANG))
|
---|
720 | return NULL;
|
---|
721 | if (pid < 0) {
|
---|
722 | if ((errno == EINTR) || (errno == EAGAIN))
|
---|
723 | continue;
|
---|
724 | if (errno == ECHILD) {
|
---|
725 | bb_error_msg("wait: No more child process?!?");
|
---|
726 | return NULL;
|
---|
727 | }
|
---|
728 | perror("wait");
|
---|
729 | continue;
|
---|
730 | }
|
---|
731 | for (prev = 0, inst = instance_list;
|
---|
732 | inst;
|
---|
733 | prev = inst, inst = inst->next) {
|
---|
734 | if (inst->pid == pid)
|
---|
735 | break;
|
---|
736 | }
|
---|
737 | } while (!inst);
|
---|
738 |
|
---|
739 | if (WIFEXITED(status))
|
---|
740 | status = WEXITSTATUS(status);
|
---|
741 | else if (WIFSIGNALED(status)) {
|
---|
742 | sig = WTERMSIG(status);
|
---|
743 | if (sig == SIGINT) {
|
---|
744 | status = EXIT_UNCORRECTED;
|
---|
745 | } else {
|
---|
746 | printf("Warning... %s for device %s exited "
|
---|
747 | "with signal %d.\n",
|
---|
748 | inst->prog, inst->device, sig);
|
---|
749 | status = EXIT_ERROR;
|
---|
750 | }
|
---|
751 | } else {
|
---|
752 | printf("%s %s: status is %x, should never happen.\n",
|
---|
753 | inst->prog, inst->device, status);
|
---|
754 | status = EXIT_ERROR;
|
---|
755 | }
|
---|
756 | inst->exit_status = status;
|
---|
757 | if (progress && (inst->flags & FLAG_PROGRESS) &&
|
---|
758 | !progress_active()) {
|
---|
759 | for (inst2 = instance_list; inst2; inst2 = inst2->next) {
|
---|
760 | if (inst2->flags & FLAG_DONE)
|
---|
761 | continue;
|
---|
762 | if (strcmp(inst2->type, "ext2") &&
|
---|
763 | strcmp(inst2->type, "ext3"))
|
---|
764 | continue;
|
---|
765 | /*
|
---|
766 | * If we've just started the fsck, wait a tiny
|
---|
767 | * bit before sending the kill, to give it
|
---|
768 | * time to set up the signal handler
|
---|
769 | */
|
---|
770 | if (inst2->start_time < time(0)+2) {
|
---|
771 | if (fork() == 0) {
|
---|
772 | sleep(1);
|
---|
773 | kill(inst2->pid, SIGUSR1);
|
---|
774 | exit(0);
|
---|
775 | }
|
---|
776 | } else
|
---|
777 | kill(inst2->pid, SIGUSR1);
|
---|
778 | inst2->flags |= FLAG_PROGRESS;
|
---|
779 | break;
|
---|
780 | }
|
---|
781 | }
|
---|
782 | ret_inst:
|
---|
783 | if (prev)
|
---|
784 | prev->next = inst->next;
|
---|
785 | else
|
---|
786 | instance_list = inst->next;
|
---|
787 | if (verbose > 1)
|
---|
788 | printf("Finished with %s (exit status %d)\n",
|
---|
789 | inst->device, inst->exit_status);
|
---|
790 | num_running--;
|
---|
791 | return inst;
|
---|
792 | }
|
---|
793 |
|
---|
794 | #define FLAG_WAIT_ALL 0
|
---|
795 | #define FLAG_WAIT_ATLEAST_ONE 1
|
---|
796 | /*
|
---|
797 | * Wait until all executing child processes have exited; return the
|
---|
798 | * logical OR of all of their exit code values.
|
---|
799 | */
|
---|
800 | static int wait_many(int flags)
|
---|
801 | {
|
---|
802 | struct fsck_instance *inst;
|
---|
803 | int global_status = 0;
|
---|
804 | int wait_flags = 0;
|
---|
805 |
|
---|
806 | while ((inst = wait_one(wait_flags))) {
|
---|
807 | global_status |= inst->exit_status;
|
---|
808 | free_instance(inst);
|
---|
809 | #ifdef RANDOM_DEBUG
|
---|
810 | if (noexecute && (flags & WNOHANG) && !(random() % 3))
|
---|
811 | break;
|
---|
812 | #endif
|
---|
813 | if (flags & FLAG_WAIT_ATLEAST_ONE)
|
---|
814 | wait_flags = WNOHANG;
|
---|
815 | }
|
---|
816 | return global_status;
|
---|
817 | }
|
---|
818 |
|
---|
819 | /*
|
---|
820 | * Run the fsck program on a particular device
|
---|
821 | *
|
---|
822 | * If the type is specified using -t, and it isn't prefixed with "no"
|
---|
823 | * (as in "noext2") and only one filesystem type is specified, then
|
---|
824 | * use that type regardless of what is specified in /etc/fstab.
|
---|
825 | *
|
---|
826 | * If the type isn't specified by the user, then use either the type
|
---|
827 | * specified in /etc/fstab, or DEFAULT_FSTYPE.
|
---|
828 | */
|
---|
829 | static void fsck_device(struct fs_info *fs, int interactive)
|
---|
830 | {
|
---|
831 | const char *type;
|
---|
832 | int retval;
|
---|
833 |
|
---|
834 | interpret_type(fs);
|
---|
835 |
|
---|
836 | if (strcmp(fs->type, "auto") != 0)
|
---|
837 | type = fs->type;
|
---|
838 | else if (fstype && strncmp(fstype, "no", 2) &&
|
---|
839 | strncmp(fstype, "opts=", 5) && strncmp(fstype, "loop", 4) &&
|
---|
840 | !strchr(fstype, ','))
|
---|
841 | type = fstype;
|
---|
842 | else
|
---|
843 | type = DEFAULT_FSTYPE;
|
---|
844 |
|
---|
845 | num_running++;
|
---|
846 | retval = execute(type, fs->device, fs->mountpt, interactive);
|
---|
847 | if (retval) {
|
---|
848 | bb_error_msg("Error %d while executing fsck.%s for %s",
|
---|
849 | retval, type, fs->device);
|
---|
850 | num_running--;
|
---|
851 | }
|
---|
852 | }
|
---|
853 |
|
---|
854 |
|
---|
855 | /*
|
---|
856 | * Deal with the fsck -t argument.
|
---|
857 | */
|
---|
858 | struct fs_type_compile {
|
---|
859 | char **list;
|
---|
860 | int *type;
|
---|
861 | int negate;
|
---|
862 | } fs_type_compiled;
|
---|
863 |
|
---|
864 | #define FS_TYPE_NORMAL 0
|
---|
865 | #define FS_TYPE_OPT 1
|
---|
866 | #define FS_TYPE_NEGOPT 2
|
---|
867 |
|
---|
868 | static const char fs_type_syntax_error[] =
|
---|
869 | "Either all or none of the filesystem types passed to -t must be prefixed\n"
|
---|
870 | "with 'no' or '!'.";
|
---|
871 |
|
---|
872 | static void compile_fs_type(char *fs_type, struct fs_type_compile *cmp)
|
---|
873 | {
|
---|
874 | char *cp, *list, *s;
|
---|
875 | int num = 2;
|
---|
876 | int negate, first_negate = 1;
|
---|
877 |
|
---|
878 | if (fs_type) {
|
---|
879 | for (cp=fs_type; *cp; cp++) {
|
---|
880 | if (*cp == ',')
|
---|
881 | num++;
|
---|
882 | }
|
---|
883 | }
|
---|
884 |
|
---|
885 | cmp->list = xcalloc(num, sizeof(char *));
|
---|
886 | cmp->type = xcalloc(num, sizeof(int));
|
---|
887 | cmp->negate = 0;
|
---|
888 |
|
---|
889 | if (!fs_type)
|
---|
890 | return;
|
---|
891 |
|
---|
892 | list = string_copy(fs_type);
|
---|
893 | num = 0;
|
---|
894 | s = strtok(list, ",");
|
---|
895 | while(s) {
|
---|
896 | negate = 0;
|
---|
897 | if (strncmp(s, "no", 2) == 0) {
|
---|
898 | s += 2;
|
---|
899 | negate = 1;
|
---|
900 | } else if (*s == '!') {
|
---|
901 | s++;
|
---|
902 | negate = 1;
|
---|
903 | }
|
---|
904 | if (strcmp(s, "loop") == 0)
|
---|
905 | /* loop is really short-hand for opts=loop */
|
---|
906 | goto loop_special_case;
|
---|
907 | else if (strncmp(s, "opts=", 5) == 0) {
|
---|
908 | s += 5;
|
---|
909 | loop_special_case:
|
---|
910 | cmp->type[num] = negate ? FS_TYPE_NEGOPT : FS_TYPE_OPT;
|
---|
911 | } else {
|
---|
912 | if (first_negate) {
|
---|
913 | cmp->negate = negate;
|
---|
914 | first_negate = 0;
|
---|
915 | }
|
---|
916 | if ((negate && !cmp->negate) ||
|
---|
917 | (!negate && cmp->negate)) {
|
---|
918 | bb_error_msg_and_die("%s", fs_type_syntax_error);
|
---|
919 | }
|
---|
920 | }
|
---|
921 | #if 0
|
---|
922 | printf("Adding %s to list (type %d).\n", s, cmp->type[num]);
|
---|
923 | #endif
|
---|
924 | cmp->list[num++] = string_copy(s);
|
---|
925 | s = strtok(NULL, ",");
|
---|
926 | }
|
---|
927 | free(list);
|
---|
928 | }
|
---|
929 |
|
---|
930 | /*
|
---|
931 | * This function returns true if a particular option appears in a
|
---|
932 | * comma-delimited options list
|
---|
933 | */
|
---|
934 | static int opt_in_list(char *opt, char *optlist)
|
---|
935 | {
|
---|
936 | char *list, *s;
|
---|
937 |
|
---|
938 | if (!optlist)
|
---|
939 | return 0;
|
---|
940 | list = string_copy(optlist);
|
---|
941 |
|
---|
942 | s = strtok(list, ",");
|
---|
943 | while(s) {
|
---|
944 | if (strcmp(s, opt) == 0) {
|
---|
945 | free(list);
|
---|
946 | return 1;
|
---|
947 | }
|
---|
948 | s = strtok(NULL, ",");
|
---|
949 | }
|
---|
950 | free(list);
|
---|
951 | return 0;
|
---|
952 | }
|
---|
953 |
|
---|
954 | /* See if the filesystem matches the criteria given by the -t option */
|
---|
955 | static int fs_match(struct fs_info *fs, struct fs_type_compile *cmp)
|
---|
956 | {
|
---|
957 | int n, ret = 0, checked_type = 0;
|
---|
958 | char *cp;
|
---|
959 |
|
---|
960 | if (cmp->list == 0 || cmp->list[0] == 0)
|
---|
961 | return 1;
|
---|
962 |
|
---|
963 | for (n=0; (cp = cmp->list[n]); n++) {
|
---|
964 | switch (cmp->type[n]) {
|
---|
965 | case FS_TYPE_NORMAL:
|
---|
966 | checked_type++;
|
---|
967 | if (strcmp(cp, fs->type) == 0) {
|
---|
968 | ret = 1;
|
---|
969 | }
|
---|
970 | break;
|
---|
971 | case FS_TYPE_NEGOPT:
|
---|
972 | if (opt_in_list(cp, fs->opts))
|
---|
973 | return 0;
|
---|
974 | break;
|
---|
975 | case FS_TYPE_OPT:
|
---|
976 | if (!opt_in_list(cp, fs->opts))
|
---|
977 | return 0;
|
---|
978 | break;
|
---|
979 | }
|
---|
980 | }
|
---|
981 | if (checked_type == 0)
|
---|
982 | return 1;
|
---|
983 | return (cmp->negate ? !ret : ret);
|
---|
984 | }
|
---|
985 |
|
---|
986 | /* Check if we should ignore this filesystem. */
|
---|
987 | static int ignore(struct fs_info *fs)
|
---|
988 | {
|
---|
989 | int wanted;
|
---|
990 | char *s;
|
---|
991 |
|
---|
992 | /*
|
---|
993 | * If the pass number is 0, ignore it.
|
---|
994 | */
|
---|
995 | if (fs->passno == 0)
|
---|
996 | return 1;
|
---|
997 |
|
---|
998 | interpret_type(fs);
|
---|
999 |
|
---|
1000 | /*
|
---|
1001 | * If a specific fstype is specified, and it doesn't match,
|
---|
1002 | * ignore it.
|
---|
1003 | */
|
---|
1004 | if (!fs_match(fs, &fs_type_compiled)) return 1;
|
---|
1005 |
|
---|
1006 | /* Are we ignoring this type? */
|
---|
1007 | if(compare_string_array(ignored_types, fs->type) >= 0)
|
---|
1008 | return 1;
|
---|
1009 |
|
---|
1010 | /* Do we really really want to check this fs? */
|
---|
1011 | wanted = compare_string_array(really_wanted, fs->type) >= 0;
|
---|
1012 |
|
---|
1013 | /* See if the <fsck.fs> program is available. */
|
---|
1014 | s = find_fsck(fs->type);
|
---|
1015 | if (s == NULL) {
|
---|
1016 | if (wanted)
|
---|
1017 | bb_error_msg("cannot check %s: fsck.%s not found",
|
---|
1018 | fs->device, fs->type);
|
---|
1019 | return 1;
|
---|
1020 | }
|
---|
1021 | free(s);
|
---|
1022 |
|
---|
1023 | /* We can and want to check this file system type. */
|
---|
1024 | return 0;
|
---|
1025 | }
|
---|
1026 |
|
---|
1027 | /*
|
---|
1028 | * Returns TRUE if a partition on the same disk is already being
|
---|
1029 | * checked.
|
---|
1030 | */
|
---|
1031 | static int device_already_active(char *device)
|
---|
1032 | {
|
---|
1033 | struct fsck_instance *inst;
|
---|
1034 | char *base;
|
---|
1035 |
|
---|
1036 | if (force_all_parallel)
|
---|
1037 | return 0;
|
---|
1038 |
|
---|
1039 | #ifdef BASE_MD
|
---|
1040 | /* Don't check a soft raid disk with any other disk */
|
---|
1041 | if (instance_list &&
|
---|
1042 | (!strncmp(instance_list->device, BASE_MD, sizeof(BASE_MD)-1) ||
|
---|
1043 | !strncmp(device, BASE_MD, sizeof(BASE_MD)-1)))
|
---|
1044 | return 1;
|
---|
1045 | #endif
|
---|
1046 |
|
---|
1047 | base = base_device(device);
|
---|
1048 | /*
|
---|
1049 | * If we don't know the base device, assume that the device is
|
---|
1050 | * already active if there are any fsck instances running.
|
---|
1051 | */
|
---|
1052 | if (!base)
|
---|
1053 | return (instance_list != 0);
|
---|
1054 | for (inst = instance_list; inst; inst = inst->next) {
|
---|
1055 | if (!inst->base_device || !strcmp(base, inst->base_device)) {
|
---|
1056 | free(base);
|
---|
1057 | return 1;
|
---|
1058 | }
|
---|
1059 | }
|
---|
1060 | free(base);
|
---|
1061 | return 0;
|
---|
1062 | }
|
---|
1063 |
|
---|
1064 | /* Check all file systems, using the /etc/fstab table. */
|
---|
1065 | static int check_all(void)
|
---|
1066 | {
|
---|
1067 | struct fs_info *fs = NULL;
|
---|
1068 | int status = EXIT_OK;
|
---|
1069 | int not_done_yet = 1;
|
---|
1070 | int passno = 1;
|
---|
1071 | int pass_done;
|
---|
1072 |
|
---|
1073 | if (verbose)
|
---|
1074 | fputs("Checking all file systems.\n", stdout);
|
---|
1075 |
|
---|
1076 | /*
|
---|
1077 | * Do an initial scan over the filesystem; mark filesystems
|
---|
1078 | * which should be ignored as done, and resolve any "auto"
|
---|
1079 | * filesystem types (done as a side-effect of calling ignore()).
|
---|
1080 | */
|
---|
1081 | for (fs = filesys_info; fs; fs = fs->next) {
|
---|
1082 | if (ignore(fs))
|
---|
1083 | fs->flags |= FLAG_DONE;
|
---|
1084 | }
|
---|
1085 |
|
---|
1086 | /*
|
---|
1087 | * Find and check the root filesystem.
|
---|
1088 | */
|
---|
1089 | if (!parallel_root) {
|
---|
1090 | for (fs = filesys_info; fs; fs = fs->next) {
|
---|
1091 | if (!strcmp(fs->mountpt, "/"))
|
---|
1092 | break;
|
---|
1093 | }
|
---|
1094 | if (fs) {
|
---|
1095 | if (!skip_root && !ignore(fs)) {
|
---|
1096 | fsck_device(fs, 1);
|
---|
1097 | status |= wait_many(FLAG_WAIT_ALL);
|
---|
1098 | if (status > EXIT_NONDESTRUCT)
|
---|
1099 | return status;
|
---|
1100 | }
|
---|
1101 | fs->flags |= FLAG_DONE;
|
---|
1102 | }
|
---|
1103 | }
|
---|
1104 | /*
|
---|
1105 | * This is for the bone-headed user who enters the root
|
---|
1106 | * filesystem twice. Skip root will skep all root entries.
|
---|
1107 | */
|
---|
1108 | if (skip_root)
|
---|
1109 | for (fs = filesys_info; fs; fs = fs->next)
|
---|
1110 | if (!strcmp(fs->mountpt, "/"))
|
---|
1111 | fs->flags |= FLAG_DONE;
|
---|
1112 |
|
---|
1113 | while (not_done_yet) {
|
---|
1114 | not_done_yet = 0;
|
---|
1115 | pass_done = 1;
|
---|
1116 |
|
---|
1117 | for (fs = filesys_info; fs; fs = fs->next) {
|
---|
1118 | if (cancel_requested)
|
---|
1119 | break;
|
---|
1120 | if (fs->flags & FLAG_DONE)
|
---|
1121 | continue;
|
---|
1122 | /*
|
---|
1123 | * If the filesystem's pass number is higher
|
---|
1124 | * than the current pass number, then we don't
|
---|
1125 | * do it yet.
|
---|
1126 | */
|
---|
1127 | if (fs->passno > passno) {
|
---|
1128 | not_done_yet++;
|
---|
1129 | continue;
|
---|
1130 | }
|
---|
1131 | /*
|
---|
1132 | * If a filesystem on a particular device has
|
---|
1133 | * already been spawned, then we need to defer
|
---|
1134 | * this to another pass.
|
---|
1135 | */
|
---|
1136 | if (device_already_active(fs->device)) {
|
---|
1137 | pass_done = 0;
|
---|
1138 | continue;
|
---|
1139 | }
|
---|
1140 | /*
|
---|
1141 | * Spawn off the fsck process
|
---|
1142 | */
|
---|
1143 | fsck_device(fs, serialize);
|
---|
1144 | fs->flags |= FLAG_DONE;
|
---|
1145 |
|
---|
1146 | /*
|
---|
1147 | * Only do one filesystem at a time, or if we
|
---|
1148 | * have a limit on the number of fsck's extant
|
---|
1149 | * at one time, apply that limit.
|
---|
1150 | */
|
---|
1151 | if (serialize ||
|
---|
1152 | (max_running && (num_running >= max_running))) {
|
---|
1153 | pass_done = 0;
|
---|
1154 | break;
|
---|
1155 | }
|
---|
1156 | }
|
---|
1157 | if (cancel_requested)
|
---|
1158 | break;
|
---|
1159 | if (verbose > 1)
|
---|
1160 | printf("--waiting-- (pass %d)\n", passno);
|
---|
1161 | status |= wait_many(pass_done ? FLAG_WAIT_ALL :
|
---|
1162 | FLAG_WAIT_ATLEAST_ONE);
|
---|
1163 | if (pass_done) {
|
---|
1164 | if (verbose > 1)
|
---|
1165 | printf("----------------------------------\n");
|
---|
1166 | passno++;
|
---|
1167 | } else
|
---|
1168 | not_done_yet++;
|
---|
1169 | }
|
---|
1170 | if (cancel_requested && !kill_sent) {
|
---|
1171 | kill_all(SIGTERM);
|
---|
1172 | kill_sent++;
|
---|
1173 | }
|
---|
1174 | status |= wait_many(FLAG_WAIT_ATLEAST_ONE);
|
---|
1175 | return status;
|
---|
1176 | }
|
---|
1177 |
|
---|
1178 | static void signal_cancel(int sig FSCK_ATTR((unused)))
|
---|
1179 | {
|
---|
1180 | cancel_requested++;
|
---|
1181 | }
|
---|
1182 |
|
---|
1183 | static void PRS(int argc, char *argv[])
|
---|
1184 | {
|
---|
1185 | int i, j;
|
---|
1186 | char *arg, *dev, *tmp = 0;
|
---|
1187 | char options[128];
|
---|
1188 | int opt = 0;
|
---|
1189 | int opts_for_fsck = 0;
|
---|
1190 | struct sigaction sa;
|
---|
1191 |
|
---|
1192 | /*
|
---|
1193 | * Set up signal action
|
---|
1194 | */
|
---|
1195 | memset(&sa, 0, sizeof(struct sigaction));
|
---|
1196 | sa.sa_handler = signal_cancel;
|
---|
1197 | sigaction(SIGINT, &sa, 0);
|
---|
1198 | sigaction(SIGTERM, &sa, 0);
|
---|
1199 |
|
---|
1200 | num_devices = 0;
|
---|
1201 | num_args = 0;
|
---|
1202 | instance_list = 0;
|
---|
1203 |
|
---|
1204 | for (i=1; i < argc; i++) {
|
---|
1205 | arg = argv[i];
|
---|
1206 | if (!arg)
|
---|
1207 | continue;
|
---|
1208 | if ((arg[0] == '/' && !opts_for_fsck) || strchr(arg, '=')) {
|
---|
1209 | if (num_devices >= MAX_DEVICES) {
|
---|
1210 | bb_error_msg_and_die("too many devices");
|
---|
1211 | }
|
---|
1212 | dev = blkid_get_devname(cache, arg, NULL);
|
---|
1213 | if (!dev && strchr(arg, '=')) {
|
---|
1214 | /*
|
---|
1215 | * Check to see if we failed because
|
---|
1216 | * /proc/partitions isn't found.
|
---|
1217 | */
|
---|
1218 | if (access("/proc/partitions", R_OK) < 0) {
|
---|
1219 | bb_error_msg_and_die("Couldn't open /proc/partitions: %m\n"
|
---|
1220 | "Is /proc mounted?");
|
---|
1221 | }
|
---|
1222 | /*
|
---|
1223 | * Check to see if this is because
|
---|
1224 | * we're not running as root
|
---|
1225 | */
|
---|
1226 | if (geteuid())
|
---|
1227 | bb_error_msg_and_die(
|
---|
1228 | "Must be root to scan for matching filesystems: %s\n", arg);
|
---|
1229 | else
|
---|
1230 | bb_error_msg_and_die(
|
---|
1231 | "Couldn't find matching filesystem: %s", arg);
|
---|
1232 | }
|
---|
1233 | devices[num_devices++] = dev ? dev : string_copy(arg);
|
---|
1234 | continue;
|
---|
1235 | }
|
---|
1236 | if (arg[0] != '-' || opts_for_fsck) {
|
---|
1237 | if (num_args >= MAX_ARGS) {
|
---|
1238 | bb_error_msg_and_die("too many arguments");
|
---|
1239 | }
|
---|
1240 | args[num_args++] = string_copy(arg);
|
---|
1241 | continue;
|
---|
1242 | }
|
---|
1243 | for (j=1; arg[j]; j++) {
|
---|
1244 | if (opts_for_fsck) {
|
---|
1245 | options[++opt] = arg[j];
|
---|
1246 | continue;
|
---|
1247 | }
|
---|
1248 | switch (arg[j]) {
|
---|
1249 | case 'A':
|
---|
1250 | doall++;
|
---|
1251 | break;
|
---|
1252 | case 'C':
|
---|
1253 | progress++;
|
---|
1254 | if (arg[j+1]) {
|
---|
1255 | progress_fd = string_to_int(arg+j+1);
|
---|
1256 | if (progress_fd < 0)
|
---|
1257 | progress_fd = 0;
|
---|
1258 | else
|
---|
1259 | goto next_arg;
|
---|
1260 | } else if ((i+1) < argc &&
|
---|
1261 | !strncmp(argv[i+1], "-", 1) == 0) {
|
---|
1262 | progress_fd = string_to_int(argv[i]);
|
---|
1263 | if (progress_fd < 0)
|
---|
1264 | progress_fd = 0;
|
---|
1265 | else {
|
---|
1266 | goto next_arg;
|
---|
1267 | i++;
|
---|
1268 | }
|
---|
1269 | }
|
---|
1270 | break;
|
---|
1271 | case 'V':
|
---|
1272 | verbose++;
|
---|
1273 | break;
|
---|
1274 | case 'N':
|
---|
1275 | noexecute++;
|
---|
1276 | break;
|
---|
1277 | case 'R':
|
---|
1278 | skip_root++;
|
---|
1279 | break;
|
---|
1280 | case 'T':
|
---|
1281 | notitle++;
|
---|
1282 | break;
|
---|
1283 | case 'M':
|
---|
1284 | like_mount++;
|
---|
1285 | break;
|
---|
1286 | case 'P':
|
---|
1287 | parallel_root++;
|
---|
1288 | break;
|
---|
1289 | case 's':
|
---|
1290 | serialize++;
|
---|
1291 | break;
|
---|
1292 | case 't':
|
---|
1293 | tmp = 0;
|
---|
1294 | if (fstype)
|
---|
1295 | bb_show_usage();
|
---|
1296 | if (arg[j+1])
|
---|
1297 | tmp = arg+j+1;
|
---|
1298 | else if ((i+1) < argc)
|
---|
1299 | tmp = argv[++i];
|
---|
1300 | else
|
---|
1301 | bb_show_usage();
|
---|
1302 | fstype = string_copy(tmp);
|
---|
1303 | compile_fs_type(fstype, &fs_type_compiled);
|
---|
1304 | goto next_arg;
|
---|
1305 | case '-':
|
---|
1306 | opts_for_fsck++;
|
---|
1307 | break;
|
---|
1308 | case '?':
|
---|
1309 | bb_show_usage();
|
---|
1310 | break;
|
---|
1311 | default:
|
---|
1312 | options[++opt] = arg[j];
|
---|
1313 | break;
|
---|
1314 | }
|
---|
1315 | }
|
---|
1316 | next_arg:
|
---|
1317 | if (opt) {
|
---|
1318 | options[0] = '-';
|
---|
1319 | options[++opt] = '\0';
|
---|
1320 | if (num_args >= MAX_ARGS) {
|
---|
1321 | bb_error_msg("too many arguments");
|
---|
1322 | }
|
---|
1323 | args[num_args++] = string_copy(options);
|
---|
1324 | opt = 0;
|
---|
1325 | }
|
---|
1326 | }
|
---|
1327 | if (getenv("FSCK_FORCE_ALL_PARALLEL"))
|
---|
1328 | force_all_parallel++;
|
---|
1329 | if ((tmp = getenv("FSCK_MAX_INST")))
|
---|
1330 | max_running = atoi(tmp);
|
---|
1331 | }
|
---|
1332 |
|
---|
1333 | int fsck_main(int argc, char *argv[])
|
---|
1334 | {
|
---|
1335 | int i, status = 0;
|
---|
1336 | int interactive = 0;
|
---|
1337 | const char *fstab;
|
---|
1338 | struct fs_info *fs;
|
---|
1339 |
|
---|
1340 | setvbuf(stdout, NULL, _IONBF, BUFSIZ);
|
---|
1341 | setvbuf(stderr, NULL, _IONBF, BUFSIZ);
|
---|
1342 |
|
---|
1343 | blkid_get_cache(&cache, NULL);
|
---|
1344 | PRS(argc, argv);
|
---|
1345 |
|
---|
1346 | if (!notitle)
|
---|
1347 | printf("fsck %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
|
---|
1348 |
|
---|
1349 | fstab = getenv("FSTAB_FILE");
|
---|
1350 | if (!fstab)
|
---|
1351 | fstab = _PATH_MNTTAB;
|
---|
1352 | load_fs_info(fstab);
|
---|
1353 |
|
---|
1354 | fsck_path = e2fs_set_sbin_path();
|
---|
1355 |
|
---|
1356 | if ((num_devices == 1) || (serialize))
|
---|
1357 | interactive = 1;
|
---|
1358 |
|
---|
1359 | /* If -A was specified ("check all"), do that! */
|
---|
1360 | if (doall)
|
---|
1361 | return check_all();
|
---|
1362 |
|
---|
1363 | if (num_devices == 0) {
|
---|
1364 | serialize++;
|
---|
1365 | interactive++;
|
---|
1366 | return check_all();
|
---|
1367 | }
|
---|
1368 | for (i = 0 ; i < num_devices; i++) {
|
---|
1369 | if (cancel_requested) {
|
---|
1370 | if (!kill_sent) {
|
---|
1371 | kill_all(SIGTERM);
|
---|
1372 | kill_sent++;
|
---|
1373 | }
|
---|
1374 | break;
|
---|
1375 | }
|
---|
1376 | fs = lookup(devices[i]);
|
---|
1377 | if (!fs) {
|
---|
1378 | fs = create_fs_device(devices[i], 0, "auto",
|
---|
1379 | 0, -1, -1);
|
---|
1380 | if (!fs)
|
---|
1381 | continue;
|
---|
1382 | }
|
---|
1383 | fsck_device(fs, interactive);
|
---|
1384 | if (serialize ||
|
---|
1385 | (max_running && (num_running >= max_running))) {
|
---|
1386 | struct fsck_instance *inst;
|
---|
1387 |
|
---|
1388 | inst = wait_one(0);
|
---|
1389 | if (inst) {
|
---|
1390 | status |= inst->exit_status;
|
---|
1391 | free_instance(inst);
|
---|
1392 | }
|
---|
1393 | if (verbose > 1)
|
---|
1394 | printf("----------------------------------\n");
|
---|
1395 | }
|
---|
1396 | }
|
---|
1397 | status |= wait_many(FLAG_WAIT_ALL);
|
---|
1398 | blkid_put_cache(cache);
|
---|
1399 | return status;
|
---|
1400 | }
|
---|