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