Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 2 | /* |
| 3 | * fsck.c - a file system consistency checker for Linux. |
| 4 | * |
Rob Landley | cc9962d | 2006-09-14 05:27:28 +0000 | [diff] [blame] | 5 | * (C) 1991, 1992 Linus Torvalds. |
| 6 | * |
Denys Vlasenko | 0ef64bd | 2010-08-16 20:14:46 +0200 | [diff] [blame] | 7 | * Licensed under GPLv2, see file LICENSE in this source tree. |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 8 | */ |
| 9 | |
| 10 | /* |
Eric Andersen | aff114c | 2004-04-14 17:51:38 +0000 | [diff] [blame] | 11 | * 09.11.91 - made the first rudimentary functions |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 12 | * |
| 13 | * 10.11.91 - updated, does checking, no repairs yet. |
| 14 | * Sent out to the mailing-list for testing. |
| 15 | * |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 16 | * 14.11.91 - Testing seems to have gone well. Added some |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 17 | * correction-code, and changed some functions. |
| 18 | * |
| 19 | * 15.11.91 - More correction code. Hopefully it notices most |
| 20 | * cases now, and tries to do something about them. |
| 21 | * |
| 22 | * 16.11.91 - More corrections (thanks to Mika Jalava). Most |
| 23 | * things seem to work now. Yeah, sure. |
| 24 | * |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 25 | * 19.04.92 - Had to start over again from this old version, as a |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 26 | * kernel bug ate my enhanced fsck in february. |
| 27 | * |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 28 | * 28.02.93 - added support for different directory entry sizes.. |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 29 | * |
| 30 | * Sat Mar 6 18:59:42 1993, faith@cs.unc.edu: Output namelen with |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 31 | * superblock information |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 32 | * |
| 33 | * Sat Oct 9 11:17:11 1993, faith@cs.unc.edu: make exit status conform |
| 34 | * to that required by fsutil |
| 35 | * |
| 36 | * Mon Jan 3 11:06:52 1994 - Dr. Wettstein (greg%wind.uucp@plains.nodak.edu) |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 37 | * Added support for file system valid flag. Also |
| 38 | * added program_version variable and output of |
| 39 | * program name and version number when program |
| 40 | * is executed. |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 41 | * |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 42 | * 30.10.94 - added support for v2 filesystem |
| 43 | * (Andreas Schwab, schwab@issan.informatik.uni-dortmund.de) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 44 | * |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 45 | * 10.12.94 - added test to prevent checking of mounted fs adapted |
| 46 | * from Theodore Ts'o's (tytso@athena.mit.edu) e2fsck |
| 47 | * program. (Daniel Quinlan, quinlan@yggdrasil.com) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 48 | * |
| 49 | * 01.07.96 - Fixed the v2 fs stuff to use the right #defines and such |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 50 | * for modern libcs (janl@math.uio.no, Nicolai Langfeldt) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 51 | * |
Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 52 | * 02.07.96 - Added C bit fiddling routines from rmk@ecs.soton.ac.uk |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 53 | * (Russell King). He made them for ARM. It would seem |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 54 | * that the ARM is powerful enough to do this in C whereas |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 55 | * i386 and m64k must use assembly to get it fast >:-) |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 56 | * This should make minix fsck system-independent. |
| 57 | * (janl@math.uio.no, Nicolai Langfeldt) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 58 | * |
| 59 | * 04.11.96 - Added minor fixes from Andreas Schwab to avoid compiler |
Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 60 | * warnings. Added mc68k bitops from |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 61 | * Joerg Dorchain <dorchain@mpi-sb.mpg.de>. |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 62 | * |
| 63 | * 06.11.96 - Added v2 code submitted by Joerg Dorchain, but written by |
| 64 | * Andreas Schwab. |
| 65 | * |
Denis Vlasenko | b44c790 | 2008-03-17 09:29:43 +0000 | [diff] [blame] | 66 | * 1999-02-22 Arkadiusz Mickiewicz <misiek@misiek.eu.org> |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 67 | * - added Native Language Support |
| 68 | * |
| 69 | * |
| 70 | * I've had no time to add comments - hopefully the function names |
| 71 | * are comments enough. As with all file system checkers, this assumes |
| 72 | * the file system is quiescent - don't use it on a mounted device |
| 73 | * unless you can be sure nobody is writing to it (and remember that the |
| 74 | * kernel can write to it when it searches for files). |
| 75 | * |
Eric Andersen | aff114c | 2004-04-14 17:51:38 +0000 | [diff] [blame] | 76 | * Usage: fsck [-larvsm] device |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 77 | * -l for a listing of all the filenames |
| 78 | * -a for automatic repairs (not implemented) |
| 79 | * -r for repairs (interactive) (not implemented) |
| 80 | * -v for verbose (tells how many files) |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 81 | * -s for superblock info |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 82 | * -m for minix-like "mode not cleared" warnings |
| 83 | * -f force filesystem check even if filesystem marked as valid |
| 84 | * |
| 85 | * The device may be a block device or a image of one, but this isn't |
Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 86 | * enforced (but it's not much fun on a character device :-). |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 87 | */ |
Denys Vlasenko | dd898c9 | 2016-11-23 11:46:32 +0100 | [diff] [blame^] | 88 | //config:config FSCK_MINIX |
| 89 | //config: bool "fsck_minix" |
| 90 | //config: default y |
| 91 | //config: help |
| 92 | //config: The minix filesystem is a nice, small, compact, read-write filesystem |
| 93 | //config: with little overhead. It is not a journaling filesystem however and |
| 94 | //config: can experience corruption if it is not properly unmounted or if the |
| 95 | //config: power goes off in the middle of a write. This utility allows you to |
| 96 | //config: check for and attempt to repair any corruption that occurs to a minix |
| 97 | //config: filesystem. |
| 98 | |
| 99 | //applet:IF_FSCK_MINIX(APPLET_ODDNAME(fsck.minix, fsck_minix, BB_DIR_SBIN, BB_SUID_DROP, fsck_minix)) |
| 100 | |
| 101 | //kbuild:lib-$(CONFIG_FSCK_MINIX) += fsck_minix.o |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 102 | |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 103 | //usage:#define fsck_minix_trivial_usage |
| 104 | //usage: "[-larvsmf] BLOCKDEV" |
| 105 | //usage:#define fsck_minix_full_usage "\n\n" |
| 106 | //usage: "Check MINIX filesystem\n" |
Pere Orga | 5bc8c00 | 2011-04-11 03:29:49 +0200 | [diff] [blame] | 107 | //usage: "\n -l List all filenames" |
| 108 | //usage: "\n -r Perform interactive repairs" |
| 109 | //usage: "\n -a Perform automatic repairs" |
| 110 | //usage: "\n -v Verbose" |
| 111 | //usage: "\n -s Output superblock information" |
| 112 | //usage: "\n -m Show \"mode not cleared\" warnings" |
| 113 | //usage: "\n -f Force file system check" |
| 114 | |
Rob Landley | cc9962d | 2006-09-14 05:27:28 +0000 | [diff] [blame] | 115 | #include <mntent.h> |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 116 | #include "libbb.h" |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 117 | #include "minix.h" |
Eric Andersen | 85c5520 | 2000-07-10 22:46:55 +0000 | [diff] [blame] | 118 | |
Eric Andersen | 85c5520 | 2000-07-10 22:46:55 +0000 | [diff] [blame] | 119 | #ifndef BLKGETSIZE |
| 120 | #define BLKGETSIZE _IO(0x12,96) /* return device size */ |
| 121 | #endif |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 122 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 123 | struct BUG_bad_inode_size { |
| 124 | char BUG_bad_inode1_size[(INODE_SIZE1 * MINIX1_INODES_PER_BLOCK != BLOCK_SIZE) ? -1 : 1]; |
| 125 | #if ENABLE_FEATURE_MINIX2 |
| 126 | char BUG_bad_inode2_size[(INODE_SIZE2 * MINIX2_INODES_PER_BLOCK != BLOCK_SIZE) ? -1 : 1]; |
| 127 | #endif |
| 128 | }; |
| 129 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 130 | enum { |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 131 | #ifdef UNUSED |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 132 | MINIX1_LINK_MAX = 250, |
| 133 | MINIX2_LINK_MAX = 65530, |
| 134 | MINIX_I_MAP_SLOTS = 8, |
| 135 | MINIX_Z_MAP_SLOTS = 64, |
| 136 | MINIX_V1 = 0x0001, /* original minix fs */ |
| 137 | MINIX_V2 = 0x0002, /* minix V2 fs */ |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 138 | #endif |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 139 | MINIX_NAME_MAX = 255, /* # chars in a file name */ |
| 140 | }; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 141 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 142 | |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 143 | #if !ENABLE_FEATURE_MINIX2 |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 144 | enum { version2 = 0 }; |
| 145 | #endif |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 146 | |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 147 | enum { MAX_DEPTH = 32 }; |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 148 | |
Denis Vlasenko | e06f61d | 2008-06-25 10:00:58 +0000 | [diff] [blame] | 149 | enum { dev_fd = 3 }; |
| 150 | |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 151 | struct globals { |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 152 | #if ENABLE_FEATURE_MINIX2 |
| 153 | smallint version2; |
| 154 | #endif |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 155 | smallint changed; /* is filesystem modified? */ |
| 156 | smallint errors_uncorrected; /* flag if some error was not corrected */ |
| 157 | smallint termios_set; |
| 158 | smallint dirsize; |
| 159 | smallint namelen; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 160 | const char *device_name; |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 161 | int directory, regular, blockdev, chardev, links, symlinks, total; |
| 162 | char *inode_buffer; |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 163 | |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 164 | char *inode_map; |
| 165 | char *zone_map; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 166 | |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 167 | unsigned char *inode_count; |
| 168 | unsigned char *zone_count; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 169 | |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 170 | /* File-name data */ |
| 171 | int name_depth; |
| 172 | char *name_component[MAX_DEPTH+1]; |
Denis Vlasenko | fad03bc | 2007-03-13 22:31:28 +0000 | [diff] [blame] | 173 | |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 174 | /* Bigger stuff */ |
| 175 | struct termios sv_termios; |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 176 | char superblock_buffer[BLOCK_SIZE]; |
Denis Vlasenko | fad03bc | 2007-03-13 22:31:28 +0000 | [diff] [blame] | 177 | char add_zone_ind_blk[BLOCK_SIZE]; |
| 178 | char add_zone_dind_blk[BLOCK_SIZE]; |
Denis Vlasenko | 5e34ff2 | 2009-04-21 11:09:40 +0000 | [diff] [blame] | 179 | IF_FEATURE_MINIX2(char add_zone_tind_blk[BLOCK_SIZE];) |
Denis Vlasenko | fad03bc | 2007-03-13 22:31:28 +0000 | [diff] [blame] | 180 | char check_file_blk[BLOCK_SIZE]; |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 181 | |
| 182 | /* File-name data */ |
| 183 | char current_name[MAX_DEPTH * MINIX_NAME_MAX]; |
| 184 | }; |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 185 | #define G (*ptr_to_globals) |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 186 | #if ENABLE_FEATURE_MINIX2 |
| 187 | #define version2 (G.version2 ) |
| 188 | #endif |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 189 | #define changed (G.changed ) |
| 190 | #define errors_uncorrected (G.errors_uncorrected ) |
| 191 | #define termios_set (G.termios_set ) |
| 192 | #define dirsize (G.dirsize ) |
| 193 | #define namelen (G.namelen ) |
| 194 | #define device_name (G.device_name ) |
| 195 | #define directory (G.directory ) |
| 196 | #define regular (G.regular ) |
| 197 | #define blockdev (G.blockdev ) |
| 198 | #define chardev (G.chardev ) |
| 199 | #define links (G.links ) |
| 200 | #define symlinks (G.symlinks ) |
| 201 | #define total (G.total ) |
| 202 | #define inode_buffer (G.inode_buffer ) |
| 203 | #define inode_map (G.inode_map ) |
| 204 | #define zone_map (G.zone_map ) |
| 205 | #define inode_count (G.inode_count ) |
| 206 | #define zone_count (G.zone_count ) |
| 207 | #define name_depth (G.name_depth ) |
| 208 | #define name_component (G.name_component ) |
| 209 | #define sv_termios (G.sv_termios ) |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 210 | #define superblock_buffer (G.superblock_buffer ) |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 211 | #define add_zone_ind_blk (G.add_zone_ind_blk ) |
| 212 | #define add_zone_dind_blk (G.add_zone_dind_blk ) |
| 213 | #define add_zone_tind_blk (G.add_zone_tind_blk ) |
| 214 | #define check_file_blk (G.check_file_blk ) |
| 215 | #define current_name (G.current_name ) |
| 216 | #define INIT_G() do { \ |
Denis Vlasenko | 574f2f4 | 2008-02-27 18:41:59 +0000 | [diff] [blame] | 217 | SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \ |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 218 | dirsize = 16; \ |
| 219 | namelen = 14; \ |
| 220 | current_name[0] = '/'; \ |
| 221 | /*current_name[1] = '\0';*/ \ |
| 222 | name_component[0] = ¤t_name[0]; \ |
| 223 | } while (0) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 224 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 225 | |
| 226 | #define OPTION_STR "larvsmf" |
| 227 | enum { |
| 228 | OPT_l = (1 << 0), |
| 229 | OPT_a = (1 << 1), |
| 230 | OPT_r = (1 << 2), |
| 231 | OPT_v = (1 << 3), |
| 232 | OPT_s = (1 << 4), |
| 233 | OPT_w = (1 << 5), |
| 234 | OPT_f = (1 << 6), |
| 235 | }; |
| 236 | #define OPT_list (option_mask32 & OPT_l) |
| 237 | #define OPT_automatic (option_mask32 & OPT_a) |
| 238 | #define OPT_repair (option_mask32 & OPT_r) |
| 239 | #define OPT_verbose (option_mask32 & OPT_v) |
| 240 | #define OPT_show (option_mask32 & OPT_s) |
| 241 | #define OPT_warn_mode (option_mask32 & OPT_w) |
| 242 | #define OPT_force (option_mask32 & OPT_f) |
| 243 | /* non-automatic repairs requested? */ |
| 244 | #define OPT_manual ((option_mask32 & (OPT_a|OPT_r)) == OPT_r) |
| 245 | |
| 246 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 247 | #define Inode1 (((struct minix1_inode *) inode_buffer)-1) |
| 248 | #define Inode2 (((struct minix2_inode *) inode_buffer)-1) |
| 249 | |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 250 | #define Super (*(struct minix_superblock *)(superblock_buffer)) |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 251 | |
| 252 | #if ENABLE_FEATURE_MINIX2 |
| 253 | # define ZONES ((unsigned)(version2 ? Super.s_zones : Super.s_nzones)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 254 | #else |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 255 | # define ZONES ((unsigned)(Super.s_nzones)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 256 | #endif |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 257 | #define INODES ((unsigned)Super.s_ninodes) |
| 258 | #define IMAPS ((unsigned)Super.s_imap_blocks) |
| 259 | #define ZMAPS ((unsigned)Super.s_zmap_blocks) |
| 260 | #define FIRSTZONE ((unsigned)Super.s_firstdatazone) |
| 261 | #define ZONESIZE ((unsigned)Super.s_log_zone_size) |
| 262 | #define MAXSIZE ((unsigned)Super.s_max_size) |
| 263 | #define MAGIC (Super.s_magic) |
| 264 | |
| 265 | /* gcc likes this more (code is smaller) than macro variant */ |
Denis Vlasenko | 3ad5d0c | 2007-06-12 20:54:54 +0000 | [diff] [blame] | 266 | static ALWAYS_INLINE unsigned div_roundup(unsigned size, unsigned n) |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 267 | { |
Denis Vlasenko | 150f402 | 2007-01-13 21:06:21 +0000 | [diff] [blame] | 268 | return (size + n-1) / n; |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 269 | } |
| 270 | |
Denis Vlasenko | 7049ff8 | 2008-06-25 09:53:17 +0000 | [diff] [blame] | 271 | #if !ENABLE_FEATURE_MINIX2 |
| 272 | #define INODE_BLOCKS div_roundup(INODES, MINIX1_INODES_PER_BLOCK) |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 273 | #else |
Denis Vlasenko | 7049ff8 | 2008-06-25 09:53:17 +0000 | [diff] [blame] | 274 | #define INODE_BLOCKS div_roundup(INODES, \ |
| 275 | (version2 ? MINIX2_INODES_PER_BLOCK : MINIX1_INODES_PER_BLOCK)) |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 276 | #endif |
| 277 | |
Denis Vlasenko | 7049ff8 | 2008-06-25 09:53:17 +0000 | [diff] [blame] | 278 | #define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE) |
| 279 | #define NORM_FIRSTZONE (2 + IMAPS + ZMAPS + INODE_BLOCKS) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 280 | |
Denis Vlasenko | cc24419 | 2007-02-06 00:37:40 +0000 | [diff] [blame] | 281 | /* Before you ask "where they come from?": */ |
| 282 | /* setbit/clrbit are supplied by sys/param.h */ |
| 283 | |
| 284 | static int minix_bit(const char *a, unsigned i) |
Eric Andersen | 56f3e35 | 2000-09-19 21:13:55 +0000 | [diff] [blame] | 285 | { |
Denis Vlasenko | dc485c9 | 2007-02-06 00:36:53 +0000 | [diff] [blame] | 286 | return (a[i >> 3] & (1<<(i & 7))); |
Eric Andersen | 56f3e35 | 2000-09-19 21:13:55 +0000 | [diff] [blame] | 287 | } |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 288 | |
Denis Vlasenko | cc24419 | 2007-02-06 00:37:40 +0000 | [diff] [blame] | 289 | static void minix_setbit(char *a, unsigned i) |
| 290 | { |
| 291 | setbit(a, i); |
| 292 | changed = 1; |
| 293 | } |
| 294 | static void minix_clrbit(char *a, unsigned i) |
| 295 | { |
| 296 | clrbit(a, i); |
| 297 | changed = 1; |
| 298 | } |
Denis Vlasenko | dc485c9 | 2007-02-06 00:36:53 +0000 | [diff] [blame] | 299 | |
| 300 | /* Note: do not assume 0/1, it is 0/nonzero */ |
Denis Vlasenko | cc24419 | 2007-02-06 00:37:40 +0000 | [diff] [blame] | 301 | #define zone_in_use(x) (minix_bit(zone_map,(x)-FIRSTZONE+1)) |
| 302 | #define inode_in_use(x) (minix_bit(inode_map,(x))) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 303 | |
Denis Vlasenko | cc24419 | 2007-02-06 00:37:40 +0000 | [diff] [blame] | 304 | #define mark_inode(x) (minix_setbit(inode_map,(x))) |
| 305 | #define unmark_inode(x) (minix_clrbit(inode_map,(x))) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 306 | |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 307 | #define mark_zone(x) (minix_setbit(zone_map,(x)-FIRSTZONE+1)) |
| 308 | #define unmark_zone(x) (minix_clrbit(zone_map,(x)-FIRSTZONE+1)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 309 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 310 | |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 311 | static void recursive_check(unsigned ino); |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 312 | #if ENABLE_FEATURE_MINIX2 |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 313 | static void recursive_check2(unsigned ino); |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 314 | #endif |
| 315 | |
Denis Vlasenko | a60f84e | 2008-07-05 09:18:54 +0000 | [diff] [blame] | 316 | static void die(const char *str) NORETURN; |
Denis Vlasenko | 75fa4eb | 2007-01-03 01:36:42 +0000 | [diff] [blame] | 317 | static void die(const char *str) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 318 | { |
| 319 | if (termios_set) |
Denis Vlasenko | 202ac50 | 2008-11-05 13:20:58 +0000 | [diff] [blame] | 320 | tcsetattr_stdin_TCSANOW(&sv_termios); |
Denis Vlasenko | 75fa4eb | 2007-01-03 01:36:42 +0000 | [diff] [blame] | 321 | bb_error_msg_and_die("%s", str); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 322 | } |
| 323 | |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 324 | static void push_filename(const char *name) |
| 325 | { |
| 326 | // /dir/dir/dir/file |
| 327 | // ^ ^ ^ |
| 328 | // [0] [1] [2] <-name_component[i] |
| 329 | if (name_depth < MAX_DEPTH) { |
| 330 | int len; |
| 331 | char *p = name_component[name_depth]; |
| 332 | *p++ = '/'; |
| 333 | len = sprintf(p, "%.*s", namelen, name); |
| 334 | name_component[name_depth + 1] = p + len; |
| 335 | } |
| 336 | name_depth++; |
| 337 | } |
| 338 | |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 339 | static void pop_filename(void) |
| 340 | { |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 341 | name_depth--; |
| 342 | if (name_depth < MAX_DEPTH) { |
| 343 | *name_component[name_depth] = '\0'; |
| 344 | if (!name_depth) { |
| 345 | current_name[0] = '/'; |
| 346 | current_name[1] = '\0'; |
| 347 | } |
| 348 | } |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 349 | } |
| 350 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 351 | static int ask(const char *string, int def) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 352 | { |
| 353 | int c; |
| 354 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 355 | if (!OPT_repair) { |
Denis Vlasenko | 4daad90 | 2007-09-27 10:20:47 +0000 | [diff] [blame] | 356 | bb_putchar('\n'); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 357 | errors_uncorrected = 1; |
| 358 | return 0; |
| 359 | } |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 360 | if (OPT_automatic) { |
Denis Vlasenko | 4daad90 | 2007-09-27 10:20:47 +0000 | [diff] [blame] | 361 | bb_putchar('\n'); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 362 | if (!def) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 363 | errors_uncorrected = 1; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 364 | return def; |
| 365 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 366 | printf(def ? "%s (y/n)? " : "%s (n/y)? ", string); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 367 | for (;;) { |
Denys Vlasenko | 8131eea | 2009-11-02 14:19:51 +0100 | [diff] [blame] | 368 | fflush_all(); |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 369 | c = getchar(); |
| 370 | if (c == EOF) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 371 | if (!def) |
| 372 | errors_uncorrected = 1; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 373 | return def; |
| 374 | } |
Denys Vlasenko | 85ca327 | 2009-10-29 13:27:31 +0100 | [diff] [blame] | 375 | if (c == '\n') |
| 376 | break; |
| 377 | c |= 0x20; /* tolower */ |
| 378 | if (c == 'y') { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 379 | def = 1; |
| 380 | break; |
Denys Vlasenko | 85ca327 | 2009-10-29 13:27:31 +0100 | [diff] [blame] | 381 | } |
| 382 | if (c == 'n') { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 383 | def = 0; |
| 384 | break; |
Denys Vlasenko | 85ca327 | 2009-10-29 13:27:31 +0100 | [diff] [blame] | 385 | } |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 386 | } |
| 387 | if (def) |
Denys Vlasenko | d60752f | 2015-10-07 22:42:45 +0200 | [diff] [blame] | 388 | puts("y"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 389 | else { |
Denys Vlasenko | d60752f | 2015-10-07 22:42:45 +0200 | [diff] [blame] | 390 | puts("n"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 391 | errors_uncorrected = 1; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 392 | } |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 393 | return def; |
| 394 | } |
| 395 | |
| 396 | /* |
| 397 | * Make certain that we aren't checking a filesystem that is on a |
| 398 | * mounted partition. Code adapted from e2fsck, Copyright (C) 1993, |
| 399 | * 1994 Theodore Ts'o. Also licensed under GPL. |
| 400 | */ |
| 401 | static void check_mount(void) |
| 402 | { |
Denys Vlasenko | 6ae6426 | 2009-07-18 16:22:26 +0200 | [diff] [blame] | 403 | if (find_mount_point(device_name, 0)) { |
Denys Vlasenko | 09e63bb | 2009-07-05 04:50:36 +0200 | [diff] [blame] | 404 | int cont; |
| 405 | #if ENABLE_FEATURE_MTAB_SUPPORT |
| 406 | /* |
| 407 | * If the root is mounted read-only, then /etc/mtab is |
| 408 | * probably not correct; so we won't issue a warning based on |
| 409 | * it. |
| 410 | */ |
| 411 | int fd = open(bb_path_mtab_file, O_RDWR); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 412 | |
Denys Vlasenko | 09e63bb | 2009-07-05 04:50:36 +0200 | [diff] [blame] | 413 | if (fd < 0 && errno == EROFS) |
| 414 | return; |
| 415 | close(fd); |
| 416 | #endif |
| 417 | printf("%s is mounted. ", device_name); |
| 418 | cont = 0; |
| 419 | if (isatty(0) && isatty(1)) |
| 420 | cont = ask("Do you really want to continue", 0); |
| 421 | if (!cont) { |
Denys Vlasenko | d60752f | 2015-10-07 22:42:45 +0200 | [diff] [blame] | 422 | puts("Check aborted"); |
Denys Vlasenko | 09e63bb | 2009-07-05 04:50:36 +0200 | [diff] [blame] | 423 | exit(EXIT_SUCCESS); |
| 424 | } |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 425 | } |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | /* |
| 429 | * check_zone_nr checks to see that *nr is a valid zone nr. If it |
| 430 | * isn't, it will possibly be repaired. Check_zone_nr sets *corrected |
| 431 | * if an error was corrected, and returns the zone (0 for no zone |
| 432 | * or a bad zone-number). |
| 433 | */ |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 434 | static int check_zone_nr2(uint32_t *nr, smallint *corrected) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 435 | { |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 436 | const char *msg; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 437 | if (!*nr) |
| 438 | return 0; |
| 439 | if (*nr < FIRSTZONE) |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 440 | msg = "< FIRSTZONE"; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 441 | else if (*nr >= ZONES) |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 442 | msg = ">= ZONES"; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 443 | else |
| 444 | return *nr; |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 445 | printf("Zone nr %s in file '%s'. ", msg, current_name); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 446 | if (ask("Remove block", 1)) { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 447 | *nr = 0; |
| 448 | *corrected = 1; |
| 449 | } |
| 450 | return 0; |
| 451 | } |
| 452 | |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 453 | static int check_zone_nr(uint16_t *nr, smallint *corrected) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 454 | { |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 455 | uint32_t nr32 = *nr; |
| 456 | int r = check_zone_nr2(&nr32, corrected); |
| 457 | *nr = (uint16_t)nr32; |
| 458 | return r; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 459 | } |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 460 | |
| 461 | /* |
| 462 | * read-block reads block nr into the buffer at addr. |
| 463 | */ |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 464 | static void read_block(unsigned nr, void *addr) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 465 | { |
| 466 | if (!nr) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 467 | memset(addr, 0, BLOCK_SIZE); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 468 | return; |
| 469 | } |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 470 | xlseek(dev_fd, BLOCK_SIZE * nr, SEEK_SET); |
| 471 | if (BLOCK_SIZE != full_read(dev_fd, addr, BLOCK_SIZE)) { |
| 472 | printf("%s: bad block %u in file '%s'\n", |
| 473 | bb_msg_read_error, nr, current_name); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 474 | errors_uncorrected = 1; |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 475 | memset(addr, 0, BLOCK_SIZE); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 476 | } |
| 477 | } |
| 478 | |
| 479 | /* |
| 480 | * write_block writes block nr to disk. |
| 481 | */ |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 482 | static void write_block(unsigned nr, void *addr) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 483 | { |
| 484 | if (!nr) |
| 485 | return; |
| 486 | if (nr < FIRSTZONE || nr >= ZONES) { |
Denys Vlasenko | d60752f | 2015-10-07 22:42:45 +0200 | [diff] [blame] | 487 | puts("Internal error: trying to write bad block\n" |
| 488 | "Write request ignored"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 489 | errors_uncorrected = 1; |
| 490 | return; |
| 491 | } |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 492 | xlseek(dev_fd, BLOCK_SIZE * nr, SEEK_SET); |
| 493 | if (BLOCK_SIZE != full_write(dev_fd, addr, BLOCK_SIZE)) { |
| 494 | printf("%s: bad block %u in file '%s'\n", |
| 495 | bb_msg_write_error, nr, current_name); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 496 | errors_uncorrected = 1; |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | /* |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 501 | * map_block calculates the absolute block nr of a block in a file. |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 502 | * It sets 'changed' if the inode has needed changing, and re-writes |
| 503 | * any indirect blocks with errors. |
| 504 | */ |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 505 | static int map_block(struct minix1_inode *inode, unsigned blknr) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 506 | { |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 507 | uint16_t ind[BLOCK_SIZE >> 1]; |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 508 | int block, result; |
| 509 | smallint blk_chg; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 510 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 511 | if (blknr < 7) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 512 | return check_zone_nr(inode->i_zone + blknr, &changed); |
| 513 | blknr -= 7; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 514 | if (blknr < 512) { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 515 | block = check_zone_nr(inode->i_zone + 7, &changed); |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 516 | goto common; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 517 | } |
| 518 | blknr -= 512; |
| 519 | block = check_zone_nr(inode->i_zone + 8, &changed); |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 520 | read_block(block, ind); /* double indirect */ |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 521 | blk_chg = 0; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 522 | result = check_zone_nr(&ind[blknr / 512], &blk_chg); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 523 | if (blk_chg) |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 524 | write_block(block, ind); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 525 | block = result; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 526 | common: |
| 527 | read_block(block, ind); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 528 | blk_chg = 0; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 529 | result = check_zone_nr(&ind[blknr % 512], &blk_chg); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 530 | if (blk_chg) |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 531 | write_block(block, ind); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 532 | return result; |
| 533 | } |
| 534 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 535 | #if ENABLE_FEATURE_MINIX2 |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 536 | static int map_block2(struct minix2_inode *inode, unsigned blknr) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 537 | { |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 538 | uint32_t ind[BLOCK_SIZE >> 2]; |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 539 | int block, result; |
| 540 | smallint blk_chg; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 541 | |
| 542 | if (blknr < 7) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 543 | return check_zone_nr2(inode->i_zone + blknr, &changed); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 544 | blknr -= 7; |
| 545 | if (blknr < 256) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 546 | block = check_zone_nr2(inode->i_zone + 7, &changed); |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 547 | goto common2; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 548 | } |
| 549 | blknr -= 256; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 550 | if (blknr < 256 * 256) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 551 | block = check_zone_nr2(inode->i_zone + 8, &changed); |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 552 | goto common1; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 553 | } |
| 554 | blknr -= 256 * 256; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 555 | block = check_zone_nr2(inode->i_zone + 9, &changed); |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 556 | read_block(block, ind); /* triple indirect */ |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 557 | blk_chg = 0; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 558 | result = check_zone_nr2(&ind[blknr / (256 * 256)], &blk_chg); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 559 | if (blk_chg) |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 560 | write_block(block, ind); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 561 | block = result; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 562 | common1: |
| 563 | read_block(block, ind); /* double indirect */ |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 564 | blk_chg = 0; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 565 | result = check_zone_nr2(&ind[(blknr / 256) % 256], &blk_chg); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 566 | if (blk_chg) |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 567 | write_block(block, ind); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 568 | block = result; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 569 | common2: |
| 570 | read_block(block, ind); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 571 | blk_chg = 0; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 572 | result = check_zone_nr2(&ind[blknr % 256], &blk_chg); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 573 | if (blk_chg) |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 574 | write_block(block, ind); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 575 | return result; |
| 576 | } |
| 577 | #endif |
| 578 | |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 579 | static void write_superblock(void) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 580 | { |
| 581 | /* |
| 582 | * Set the state of the filesystem based on whether or not there |
| 583 | * are uncorrected errors. The filesystem valid flag is |
| 584 | * unconditionally set if we get this far. |
| 585 | */ |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 586 | Super.s_state |= MINIX_VALID_FS | MINIX_ERROR_FS; |
| 587 | if (!errors_uncorrected) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 588 | Super.s_state &= ~MINIX_ERROR_FS; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 589 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 590 | xlseek(dev_fd, BLOCK_SIZE, SEEK_SET); |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 591 | if (BLOCK_SIZE != full_write(dev_fd, superblock_buffer, BLOCK_SIZE)) |
Denys Vlasenko | 6331cf0 | 2009-11-13 09:08:27 +0100 | [diff] [blame] | 592 | die("can't write superblock"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 593 | } |
| 594 | |
Eric Andersen | e674eb7 | 1999-10-19 20:52:57 +0000 | [diff] [blame] | 595 | static void write_tables(void) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 596 | { |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 597 | write_superblock(); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 598 | |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 599 | if (IMAPS * BLOCK_SIZE != write(dev_fd, inode_map, IMAPS * BLOCK_SIZE)) |
Denys Vlasenko | 6331cf0 | 2009-11-13 09:08:27 +0100 | [diff] [blame] | 600 | die("can't write inode map"); |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 601 | if (ZMAPS * BLOCK_SIZE != write(dev_fd, zone_map, ZMAPS * BLOCK_SIZE)) |
Denys Vlasenko | 6331cf0 | 2009-11-13 09:08:27 +0100 | [diff] [blame] | 602 | die("can't write zone map"); |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 603 | if (INODE_BUFFER_SIZE != write(dev_fd, inode_buffer, INODE_BUFFER_SIZE)) |
Denys Vlasenko | 6331cf0 | 2009-11-13 09:08:27 +0100 | [diff] [blame] | 604 | die("can't write inodes"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 605 | } |
| 606 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 607 | static void get_dirsize(void) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 608 | { |
| 609 | int block; |
| 610 | char blk[BLOCK_SIZE]; |
| 611 | int size; |
| 612 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 613 | #if ENABLE_FEATURE_MINIX2 |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 614 | if (version2) |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 615 | block = Inode2[MINIX_ROOT_INO].i_zone[0]; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 616 | else |
| 617 | #endif |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 618 | block = Inode1[MINIX_ROOT_INO].i_zone[0]; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 619 | read_block(block, blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 620 | for (size = 16; size < BLOCK_SIZE; size <<= 1) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 621 | if (strcmp(blk + size + 2, "..") == 0) { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 622 | dirsize = size; |
| 623 | namelen = size - 2; |
| 624 | return; |
| 625 | } |
| 626 | } |
| 627 | /* use defaults */ |
| 628 | } |
| 629 | |
Eric Andersen | e674eb7 | 1999-10-19 20:52:57 +0000 | [diff] [blame] | 630 | static void read_superblock(void) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 631 | { |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 632 | xlseek(dev_fd, BLOCK_SIZE, SEEK_SET); |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 633 | if (BLOCK_SIZE != full_read(dev_fd, superblock_buffer, BLOCK_SIZE)) |
Denys Vlasenko | 6331cf0 | 2009-11-13 09:08:27 +0100 | [diff] [blame] | 634 | die("can't read superblock"); |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 635 | /* already initialized to: |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 636 | namelen = 14; |
| 637 | dirsize = 16; |
| 638 | version2 = 0; |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 639 | */ |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 640 | if (MAGIC == MINIX1_SUPER_MAGIC) { |
| 641 | } else if (MAGIC == MINIX1_SUPER_MAGIC2) { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 642 | namelen = 30; |
| 643 | dirsize = 32; |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 644 | #if ENABLE_FEATURE_MINIX2 |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 645 | } else if (MAGIC == MINIX2_SUPER_MAGIC) { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 646 | version2 = 1; |
| 647 | } else if (MAGIC == MINIX2_SUPER_MAGIC2) { |
| 648 | namelen = 30; |
| 649 | dirsize = 32; |
| 650 | version2 = 1; |
| 651 | #endif |
| 652 | } else |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 653 | die("bad magic number in superblock"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 654 | if (ZONESIZE != 0 || BLOCK_SIZE != 1024) |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 655 | die("only 1k blocks/zones supported"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 656 | if (IMAPS * BLOCK_SIZE * 8 < INODES + 1) |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 657 | die("bad s_imap_blocks field in superblock"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 658 | if (ZMAPS * BLOCK_SIZE * 8 < ZONES - FIRSTZONE + 1) |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 659 | die("bad s_zmap_blocks field in superblock"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 660 | } |
| 661 | |
Eric Andersen | e674eb7 | 1999-10-19 20:52:57 +0000 | [diff] [blame] | 662 | static void read_tables(void) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 663 | { |
Rob Landley | 9a1a9de | 2006-06-13 15:12:14 +0000 | [diff] [blame] | 664 | inode_map = xzalloc(IMAPS * BLOCK_SIZE); |
| 665 | zone_map = xzalloc(ZMAPS * BLOCK_SIZE); |
Erik Andersen | 0d068a2 | 2000-03-21 22:32:57 +0000 | [diff] [blame] | 666 | inode_buffer = xmalloc(INODE_BUFFER_SIZE); |
| 667 | inode_count = xmalloc(INODES + 1); |
| 668 | zone_count = xmalloc(ZONES); |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 669 | if (IMAPS * BLOCK_SIZE != read(dev_fd, inode_map, IMAPS * BLOCK_SIZE)) |
Denys Vlasenko | 6331cf0 | 2009-11-13 09:08:27 +0100 | [diff] [blame] | 670 | die("can't read inode map"); |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 671 | if (ZMAPS * BLOCK_SIZE != read(dev_fd, zone_map, ZMAPS * BLOCK_SIZE)) |
Denys Vlasenko | 6331cf0 | 2009-11-13 09:08:27 +0100 | [diff] [blame] | 672 | die("can't read zone map"); |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 673 | if (INODE_BUFFER_SIZE != read(dev_fd, inode_buffer, INODE_BUFFER_SIZE)) |
Denys Vlasenko | 6331cf0 | 2009-11-13 09:08:27 +0100 | [diff] [blame] | 674 | die("can't read inodes"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 675 | if (NORM_FIRSTZONE != FIRSTZONE) { |
Denys Vlasenko | d60752f | 2015-10-07 22:42:45 +0200 | [diff] [blame] | 676 | puts("warning: firstzone!=norm_firstzone"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 677 | errors_uncorrected = 1; |
| 678 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 679 | get_dirsize(); |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 680 | if (OPT_show) { |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 681 | printf("%u inodes\n" |
| 682 | "%u blocks\n" |
| 683 | "Firstdatazone=%u (%u)\n" |
| 684 | "Zonesize=%u\n" |
| 685 | "Maxsize=%u\n" |
| 686 | "Filesystem state=%u\n" |
| 687 | "namelen=%u\n\n", |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 688 | INODES, |
| 689 | ZONES, |
| 690 | FIRSTZONE, NORM_FIRSTZONE, |
| 691 | BLOCK_SIZE << ZONESIZE, |
| 692 | MAXSIZE, |
| 693 | Super.s_state, |
| 694 | namelen); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 695 | } |
| 696 | } |
| 697 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 698 | static void get_inode_common(unsigned nr, uint16_t i_mode) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 699 | { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 700 | total++; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 701 | if (!inode_count[nr]) { |
| 702 | if (!inode_in_use(nr)) { |
Denys Vlasenko | 327f550 | 2013-11-29 16:45:45 +0100 | [diff] [blame] | 703 | printf("Inode %u is marked as 'unused', but it is used " |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 704 | "for file '%s'\n", nr, current_name); |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 705 | if (OPT_repair) { |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 706 | if (ask("Mark as 'in use'", 1)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 707 | mark_inode(nr); |
Denis Vlasenko | cc24419 | 2007-02-06 00:37:40 +0000 | [diff] [blame] | 708 | else |
| 709 | errors_uncorrected = 1; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 710 | } |
| 711 | } |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 712 | if (S_ISDIR(i_mode)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 713 | directory++; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 714 | else if (S_ISREG(i_mode)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 715 | regular++; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 716 | else if (S_ISCHR(i_mode)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 717 | chardev++; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 718 | else if (S_ISBLK(i_mode)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 719 | blockdev++; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 720 | else if (S_ISLNK(i_mode)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 721 | symlinks++; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 722 | else if (S_ISSOCK(i_mode)); |
| 723 | else if (S_ISFIFO(i_mode)); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 724 | else { |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 725 | printf("%s has mode %05o\n", current_name, i_mode); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 726 | } |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 727 | } else |
| 728 | links++; |
| 729 | if (!++inode_count[nr]) { |
Denys Vlasenko | d60752f | 2015-10-07 22:42:45 +0200 | [diff] [blame] | 730 | puts("Warning: inode count too big"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 731 | inode_count[nr]--; |
| 732 | errors_uncorrected = 1; |
| 733 | } |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 734 | } |
| 735 | |
| 736 | static struct minix1_inode *get_inode(unsigned nr) |
| 737 | { |
| 738 | struct minix1_inode *inode; |
| 739 | |
| 740 | if (!nr || nr > INODES) |
| 741 | return NULL; |
| 742 | inode = Inode1 + nr; |
| 743 | get_inode_common(nr, inode->i_mode); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 744 | return inode; |
| 745 | } |
| 746 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 747 | #if ENABLE_FEATURE_MINIX2 |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 748 | static struct minix2_inode *get_inode2(unsigned nr) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 749 | { |
| 750 | struct minix2_inode *inode; |
| 751 | |
| 752 | if (!nr || nr > INODES) |
| 753 | return NULL; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 754 | inode = Inode2 + nr; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 755 | get_inode_common(nr, inode->i_mode); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 756 | return inode; |
| 757 | } |
| 758 | #endif |
| 759 | |
Eric Andersen | e674eb7 | 1999-10-19 20:52:57 +0000 | [diff] [blame] | 760 | static void check_root(void) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 761 | { |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 762 | struct minix1_inode *inode = Inode1 + MINIX_ROOT_INO; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 763 | |
| 764 | if (!inode || !S_ISDIR(inode->i_mode)) |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 765 | die("root inode isn't a directory"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 766 | } |
| 767 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 768 | #if ENABLE_FEATURE_MINIX2 |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 769 | static void check_root2(void) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 770 | { |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 771 | struct minix2_inode *inode = Inode2 + MINIX_ROOT_INO; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 772 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 773 | if (!inode || !S_ISDIR(inode->i_mode)) |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 774 | die("root inode isn't a directory"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 775 | } |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 776 | #else |
| 777 | void check_root2(void); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 778 | #endif |
| 779 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 780 | static int add_zone_common(int block, smallint *corrected) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 781 | { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 782 | if (!block) |
| 783 | return 0; |
| 784 | if (zone_count[block]) { |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 785 | printf("Already used block is reused in file '%s'. ", |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 786 | current_name); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 787 | if (ask("Clear", 1)) { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 788 | block = 0; |
| 789 | *corrected = 1; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 790 | return -1; /* "please zero out *znr" */ |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 791 | } |
| 792 | } |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 793 | if (!zone_in_use(block)) { |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 794 | printf("Block %d in file '%s' is marked as 'unused'. ", |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 795 | block, current_name); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 796 | if (ask("Correct", 1)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 797 | mark_zone(block); |
| 798 | } |
| 799 | if (!++zone_count[block]) |
| 800 | zone_count[block]--; |
| 801 | return block; |
| 802 | } |
| 803 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 804 | static int add_zone(uint16_t *znr, smallint *corrected) |
| 805 | { |
| 806 | int block; |
| 807 | |
| 808 | block = check_zone_nr(znr, corrected); |
| 809 | block = add_zone_common(block, corrected); |
| 810 | if (block == -1) { |
| 811 | *znr = 0; |
| 812 | block = 0; |
| 813 | } |
| 814 | return block; |
| 815 | } |
| 816 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 817 | #if ENABLE_FEATURE_MINIX2 |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 818 | static int add_zone2(uint32_t *znr, smallint *corrected) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 819 | { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 820 | int block; |
| 821 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 822 | block = check_zone_nr2(znr, corrected); |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 823 | block = add_zone_common(block, corrected); |
| 824 | if (block == -1) { |
| 825 | *znr = 0; |
| 826 | block = 0; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 827 | } |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 828 | return block; |
| 829 | } |
| 830 | #endif |
| 831 | |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 832 | static void add_zone_ind(uint16_t *znr, smallint *corrected) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 833 | { |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 834 | int i; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 835 | int block; |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 836 | smallint chg_blk = 0; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 837 | |
| 838 | block = add_zone(znr, corrected); |
| 839 | if (!block) |
| 840 | return; |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 841 | read_block(block, add_zone_ind_blk); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 842 | for (i = 0; i < (BLOCK_SIZE >> 1); i++) |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 843 | add_zone(i + (uint16_t *) add_zone_ind_blk, &chg_blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 844 | if (chg_blk) |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 845 | write_block(block, add_zone_ind_blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 846 | } |
| 847 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 848 | #if ENABLE_FEATURE_MINIX2 |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 849 | static void add_zone_ind2(uint32_t *znr, smallint *corrected) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 850 | { |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 851 | int i; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 852 | int block; |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 853 | smallint chg_blk = 0; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 854 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 855 | block = add_zone2(znr, corrected); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 856 | if (!block) |
| 857 | return; |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 858 | read_block(block, add_zone_ind_blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 859 | for (i = 0; i < BLOCK_SIZE >> 2; i++) |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 860 | add_zone2(i + (uint32_t *) add_zone_ind_blk, &chg_blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 861 | if (chg_blk) |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 862 | write_block(block, add_zone_ind_blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 863 | } |
| 864 | #endif |
| 865 | |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 866 | static void add_zone_dind(uint16_t *znr, smallint *corrected) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 867 | { |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 868 | int i; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 869 | int block; |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 870 | smallint chg_blk = 0; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 871 | |
| 872 | block = add_zone(znr, corrected); |
| 873 | if (!block) |
| 874 | return; |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 875 | read_block(block, add_zone_dind_blk); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 876 | for (i = 0; i < (BLOCK_SIZE >> 1); i++) |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 877 | add_zone_ind(i + (uint16_t *) add_zone_dind_blk, &chg_blk); |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 878 | if (chg_blk) |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 879 | write_block(block, add_zone_dind_blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 880 | } |
| 881 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 882 | #if ENABLE_FEATURE_MINIX2 |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 883 | static void add_zone_dind2(uint32_t *znr, smallint *corrected) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 884 | { |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 885 | int i; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 886 | int block; |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 887 | smallint chg_blk = 0; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 888 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 889 | block = add_zone2(znr, corrected); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 890 | if (!block) |
| 891 | return; |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 892 | read_block(block, add_zone_dind_blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 893 | for (i = 0; i < BLOCK_SIZE >> 2; i++) |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 894 | add_zone_ind2(i + (uint32_t *) add_zone_dind_blk, &chg_blk); |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 895 | if (chg_blk) |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 896 | write_block(block, add_zone_dind_blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 897 | } |
| 898 | |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 899 | static void add_zone_tind2(uint32_t *znr, smallint *corrected) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 900 | { |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 901 | int i; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 902 | int block; |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 903 | smallint chg_blk = 0; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 904 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 905 | block = add_zone2(znr, corrected); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 906 | if (!block) |
| 907 | return; |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 908 | read_block(block, add_zone_tind_blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 909 | for (i = 0; i < BLOCK_SIZE >> 2; i++) |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 910 | add_zone_dind2(i + (uint32_t *) add_zone_tind_blk, &chg_blk); |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 911 | if (chg_blk) |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 912 | write_block(block, add_zone_tind_blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 913 | } |
| 914 | #endif |
| 915 | |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 916 | static void check_zones(unsigned i) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 917 | { |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 918 | struct minix1_inode *inode; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 919 | |
| 920 | if (!i || i > INODES) |
| 921 | return; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 922 | if (inode_count[i] > 1) /* have we counted this file already? */ |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 923 | return; |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 924 | inode = Inode1 + i; |
Denys Vlasenko | 6b9f163 | 2010-01-28 02:24:24 +0100 | [diff] [blame] | 925 | if (!S_ISDIR(inode->i_mode) |
| 926 | && !S_ISREG(inode->i_mode) |
| 927 | && !S_ISLNK(inode->i_mode) |
| 928 | ) { |
| 929 | return; |
| 930 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 931 | for (i = 0; i < 7; i++) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 932 | add_zone(i + inode->i_zone, &changed); |
| 933 | add_zone_ind(7 + inode->i_zone, &changed); |
| 934 | add_zone_dind(8 + inode->i_zone, &changed); |
| 935 | } |
| 936 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 937 | #if ENABLE_FEATURE_MINIX2 |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 938 | static void check_zones2(unsigned i) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 939 | { |
| 940 | struct minix2_inode *inode; |
| 941 | |
| 942 | if (!i || i > INODES) |
| 943 | return; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 944 | if (inode_count[i] > 1) /* have we counted this file already? */ |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 945 | return; |
| 946 | inode = Inode2 + i; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 947 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) |
| 948 | && !S_ISLNK(inode->i_mode)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 949 | return; |
| 950 | for (i = 0; i < 7; i++) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 951 | add_zone2(i + inode->i_zone, &changed); |
| 952 | add_zone_ind2(7 + inode->i_zone, &changed); |
| 953 | add_zone_dind2(8 + inode->i_zone, &changed); |
| 954 | add_zone_tind2(9 + inode->i_zone, &changed); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 955 | } |
| 956 | #endif |
| 957 | |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 958 | static void check_file(struct minix1_inode *dir, unsigned offset) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 959 | { |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 960 | struct minix1_inode *inode; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 961 | int ino; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 962 | char *name; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 963 | int block; |
| 964 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 965 | block = map_block(dir, offset / BLOCK_SIZE); |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 966 | read_block(block, check_file_blk); |
| 967 | name = check_file_blk + (offset % BLOCK_SIZE) + 2; |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 968 | ino = *(uint16_t *) (name - 2); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 969 | if (ino > INODES) { |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 970 | printf("%s contains a bad inode number for file '%.*s'. ", |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 971 | current_name, namelen, name); |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 972 | if (ask("Remove", 1)) { |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 973 | *(uint16_t *) (name - 2) = 0; |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 974 | write_block(block, check_file_blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 975 | } |
| 976 | ino = 0; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 977 | } |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 978 | push_filename(name); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 979 | inode = get_inode(ino); |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 980 | pop_filename(); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 981 | if (!offset) { |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 982 | if (inode && LONE_CHAR(name, '.')) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 983 | return; |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 984 | printf("%s: bad directory: '.' isn't first\n", current_name); |
| 985 | errors_uncorrected = 1; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 986 | } |
| 987 | if (offset == dirsize) { |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 988 | if (inode && strcmp("..", name) == 0) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 989 | return; |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 990 | printf("%s: bad directory: '..' isn't second\n", current_name); |
| 991 | errors_uncorrected = 1; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 992 | } |
| 993 | if (!inode) |
| 994 | return; |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 995 | push_filename(name); |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 996 | if (OPT_list) { |
| 997 | if (OPT_verbose) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 998 | printf("%6d %07o %3d ", ino, inode->i_mode, inode->i_nlinks); |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 999 | printf("%s%s\n", current_name, S_ISDIR(inode->i_mode) ? ":" : ""); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1000 | } |
| 1001 | check_zones(ino); |
| 1002 | if (inode && S_ISDIR(inode->i_mode)) |
| 1003 | recursive_check(ino); |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 1004 | pop_filename(); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1005 | } |
| 1006 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1007 | #if ENABLE_FEATURE_MINIX2 |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 1008 | static void check_file2(struct minix2_inode *dir, unsigned offset) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1009 | { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1010 | struct minix2_inode *inode; |
| 1011 | int ino; |
| 1012 | char *name; |
| 1013 | int block; |
| 1014 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1015 | block = map_block2(dir, offset / BLOCK_SIZE); |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 1016 | read_block(block, check_file_blk); |
| 1017 | name = check_file_blk + (offset % BLOCK_SIZE) + 2; |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 1018 | ino = *(uint16_t *) (name - 2); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1019 | if (ino > INODES) { |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 1020 | printf("%s contains a bad inode number for file '%.*s'. ", |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 1021 | current_name, namelen, name); |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 1022 | if (ask("Remove", 1)) { |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 1023 | *(uint16_t *) (name - 2) = 0; |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 1024 | write_block(block, check_file_blk); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1025 | } |
| 1026 | ino = 0; |
| 1027 | } |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 1028 | push_filename(name); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1029 | inode = get_inode2(ino); |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 1030 | pop_filename(); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1031 | if (!offset) { |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 1032 | if (inode && LONE_CHAR(name, '.')) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1033 | return; |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 1034 | printf("%s: bad directory: '.' isn't first\n", current_name); |
| 1035 | errors_uncorrected = 1; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1036 | } |
| 1037 | if (offset == dirsize) { |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 1038 | if (inode && strcmp("..", name) == 0) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1039 | return; |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 1040 | printf("%s: bad directory: '..' isn't second\n", current_name); |
| 1041 | errors_uncorrected = 1; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1042 | } |
| 1043 | if (!inode) |
| 1044 | return; |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 1045 | push_filename(name); |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1046 | if (OPT_list) { |
| 1047 | if (OPT_verbose) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1048 | printf("%6d %07o %3d ", ino, inode->i_mode, inode->i_nlinks); |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 1049 | printf("%s%s\n", current_name, S_ISDIR(inode->i_mode) ? ":" : ""); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1050 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1051 | check_zones2(ino); |
| 1052 | if (inode && S_ISDIR(inode->i_mode)) |
| 1053 | recursive_check2(ino); |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 1054 | pop_filename(); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1055 | } |
| 1056 | #endif |
| 1057 | |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 1058 | static void recursive_check(unsigned ino) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1059 | { |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1060 | struct minix1_inode *dir; |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 1061 | unsigned offset; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1062 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1063 | dir = Inode1 + ino; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1064 | if (!S_ISDIR(dir->i_mode)) |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 1065 | die("internal error"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1066 | if (dir->i_size < 2 * dirsize) { |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 1067 | printf("%s: bad directory: size<32", current_name); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1068 | errors_uncorrected = 1; |
| 1069 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1070 | for (offset = 0; offset < dir->i_size; offset += dirsize) |
| 1071 | check_file(dir, offset); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1072 | } |
| 1073 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1074 | #if ENABLE_FEATURE_MINIX2 |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 1075 | static void recursive_check2(unsigned ino) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1076 | { |
| 1077 | struct minix2_inode *dir; |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 1078 | unsigned offset; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1079 | |
| 1080 | dir = Inode2 + ino; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1081 | if (!S_ISDIR(dir->i_mode)) |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 1082 | die("internal error"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1083 | if (dir->i_size < 2 * dirsize) { |
Rob Landley | 3ea66a8 | 2006-04-29 20:08:40 +0000 | [diff] [blame] | 1084 | printf("%s: bad directory: size<32", current_name); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1085 | errors_uncorrected = 1; |
| 1086 | } |
| 1087 | for (offset = 0; offset < dir->i_size; offset += dirsize) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1088 | check_file2(dir, offset); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1089 | } |
| 1090 | #endif |
| 1091 | |
Eric Andersen | e674eb7 | 1999-10-19 20:52:57 +0000 | [diff] [blame] | 1092 | static int bad_zone(int i) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1093 | { |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 1094 | char buffer[BLOCK_SIZE]; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1095 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1096 | xlseek(dev_fd, BLOCK_SIZE * i, SEEK_SET); |
| 1097 | return (BLOCK_SIZE != full_read(dev_fd, buffer, BLOCK_SIZE)); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1098 | } |
| 1099 | |
Eric Andersen | e674eb7 | 1999-10-19 20:52:57 +0000 | [diff] [blame] | 1100 | static void check_counts(void) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1101 | { |
| 1102 | int i; |
| 1103 | |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1104 | for (i = 1; i <= INODES; i++) { |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1105 | if (OPT_warn_mode && Inode1[i].i_mode && !inode_in_use(i)) { |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 1106 | printf("Inode %d has non-zero mode. ", i); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1107 | if (ask("Clear", 1)) { |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1108 | Inode1[i].i_mode = 0; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1109 | changed = 1; |
| 1110 | } |
| 1111 | } |
| 1112 | if (!inode_count[i]) { |
| 1113 | if (!inode_in_use(i)) |
| 1114 | continue; |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 1115 | printf("Unused inode %d is marked as 'used' in the bitmap. ", i); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1116 | if (ask("Clear", 1)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1117 | unmark_inode(i); |
| 1118 | continue; |
| 1119 | } |
| 1120 | if (!inode_in_use(i)) { |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 1121 | printf("Inode %d is used, but marked as 'unused' in the bitmap. ", i); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1122 | if (ask("Set", 1)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1123 | mark_inode(i); |
| 1124 | } |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1125 | if (Inode1[i].i_nlinks != inode_count[i]) { |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 1126 | printf("Inode %d (mode=%07o), i_nlinks=%d, counted=%d. ", |
Denis Vlasenko | dc485c9 | 2007-02-06 00:36:53 +0000 | [diff] [blame] | 1127 | i, Inode1[i].i_mode, Inode1[i].i_nlinks, |
| 1128 | inode_count[i]); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1129 | if (ask("Set i_nlinks to count", 1)) { |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1130 | Inode1[i].i_nlinks = inode_count[i]; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1131 | changed = 1; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1132 | } |
| 1133 | } |
| 1134 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1135 | for (i = FIRSTZONE; i < ZONES; i++) { |
Denis Vlasenko | dc485c9 | 2007-02-06 00:36:53 +0000 | [diff] [blame] | 1136 | if ((zone_in_use(i) != 0) == zone_count[i]) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1137 | continue; |
| 1138 | if (!zone_count[i]) { |
| 1139 | if (bad_zone(i)) |
| 1140 | continue; |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 1141 | printf("Zone %d is marked 'in use', but no file uses it. ", i); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1142 | if (ask("Unmark", 1)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1143 | unmark_zone(i); |
| 1144 | continue; |
| 1145 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1146 | printf("Zone %d: %sin use, counted=%d\n", |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 1147 | i, zone_in_use(i) ? "" : "not ", zone_count[i]); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1148 | } |
| 1149 | } |
| 1150 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1151 | #if ENABLE_FEATURE_MINIX2 |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1152 | static void check_counts2(void) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1153 | { |
| 1154 | int i; |
| 1155 | |
| 1156 | for (i = 1; i <= INODES; i++) { |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1157 | if (OPT_warn_mode && Inode2[i].i_mode && !inode_in_use(i)) { |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 1158 | printf("Inode %d has non-zero mode. ", i); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1159 | if (ask("Clear", 1)) { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1160 | Inode2[i].i_mode = 0; |
| 1161 | changed = 1; |
| 1162 | } |
| 1163 | } |
| 1164 | if (!inode_count[i]) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1165 | if (!inode_in_use(i)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1166 | continue; |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 1167 | printf("Unused inode %d is marked as 'used' in the bitmap. ", i); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1168 | if (ask("Clear", 1)) |
| 1169 | unmark_inode(i); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1170 | continue; |
| 1171 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1172 | if (!inode_in_use(i)) { |
Denis Vlasenko | 73464ce | 2007-01-03 00:45:05 +0000 | [diff] [blame] | 1173 | printf("Inode %d is used, but marked as 'unused' in the bitmap. ", i); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1174 | if (ask("Set", 1)) |
| 1175 | mark_inode(i); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1176 | } |
| 1177 | if (Inode2[i].i_nlinks != inode_count[i]) { |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 1178 | printf("Inode %d (mode=%07o), i_nlinks=%d, counted=%d. ", |
Denis Vlasenko | dc485c9 | 2007-02-06 00:36:53 +0000 | [diff] [blame] | 1179 | i, Inode2[i].i_mode, Inode2[i].i_nlinks, |
| 1180 | inode_count[i]); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1181 | if (ask("Set i_nlinks to count", 1)) { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1182 | Inode2[i].i_nlinks = inode_count[i]; |
| 1183 | changed = 1; |
| 1184 | } |
| 1185 | } |
| 1186 | } |
| 1187 | for (i = FIRSTZONE; i < ZONES; i++) { |
Denis Vlasenko | dc485c9 | 2007-02-06 00:36:53 +0000 | [diff] [blame] | 1188 | if ((zone_in_use(i) != 0) == zone_count[i]) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1189 | continue; |
| 1190 | if (!zone_count[i]) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1191 | if (bad_zone(i)) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1192 | continue; |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 1193 | printf("Zone %d is marked 'in use', but no file uses it. ", i); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1194 | if (ask("Unmark", 1)) |
| 1195 | unmark_zone(i); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1196 | continue; |
| 1197 | } |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1198 | printf("Zone %d: %sin use, counted=%d\n", |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 1199 | i, zone_in_use(i) ? "" : "not ", zone_count[i]); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1200 | } |
| 1201 | } |
| 1202 | #endif |
| 1203 | |
Eric Andersen | e674eb7 | 1999-10-19 20:52:57 +0000 | [diff] [blame] | 1204 | static void check(void) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1205 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1206 | memset(inode_count, 0, (INODES + 1) * sizeof(*inode_count)); |
| 1207 | memset(zone_count, 0, ZONES * sizeof(*zone_count)); |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1208 | check_zones(MINIX_ROOT_INO); |
| 1209 | recursive_check(MINIX_ROOT_INO); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1210 | check_counts(); |
| 1211 | } |
| 1212 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1213 | #if ENABLE_FEATURE_MINIX2 |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1214 | static void check2(void) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1215 | { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1216 | memset(inode_count, 0, (INODES + 1) * sizeof(*inode_count)); |
| 1217 | memset(zone_count, 0, ZONES * sizeof(*zone_count)); |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1218 | check_zones2(MINIX_ROOT_INO); |
| 1219 | recursive_check2(MINIX_ROOT_INO); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1220 | check_counts2(); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1221 | } |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1222 | #else |
| 1223 | void check2(void); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1224 | #endif |
| 1225 | |
Denis Vlasenko | 9b49a5e | 2007-10-11 10:05:36 +0000 | [diff] [blame] | 1226 | int fsck_minix_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
Denis Vlasenko | a60f84e | 2008-07-05 09:18:54 +0000 | [diff] [blame] | 1227 | int fsck_minix_main(int argc UNUSED_PARAM, char **argv) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1228 | { |
| 1229 | struct termios tmp; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1230 | int retcode = 0; |
| 1231 | |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1232 | xfunc_error_retval = 8; |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 1233 | |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 1234 | INIT_G(); |
John Beppu | c1dc5d9 | 2000-02-11 12:43:20 +0000 | [diff] [blame] | 1235 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1236 | opt_complementary = "=1:ar"; /* one argument; -a assumes -r */ |
| 1237 | getopt32(argv, OPTION_STR); |
| 1238 | argv += optind; |
| 1239 | device_name = argv[0]; |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 1240 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1241 | check_mount(); /* trying to check a mounted filesystem? */ |
| 1242 | if (OPT_manual) { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1243 | if (!isatty(0) || !isatty(1)) |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 1244 | die("need terminal for interactive repairs"); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1245 | } |
Denis Vlasenko | e06f61d | 2008-06-25 10:00:58 +0000 | [diff] [blame] | 1246 | xmove_fd(xopen(device_name, OPT_repair ? O_RDWR : O_RDONLY), dev_fd); |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1247 | |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 1248 | /*sync(); paranoia? */ |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1249 | read_superblock(); |
| 1250 | |
| 1251 | /* |
| 1252 | * Determine whether or not we should continue with the checking. |
| 1253 | * This is based on the status of the filesystem valid and error |
Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 1254 | * flags and whether or not the -f switch was specified on the |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1255 | * command line. |
| 1256 | */ |
Denis Vlasenko | ca525b4 | 2007-06-13 12:27:17 +0000 | [diff] [blame] | 1257 | printf("%s: %s\n", applet_name, bb_banner); |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 1258 | |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 1259 | if (!(Super.s_state & MINIX_ERROR_FS) |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1260 | && (Super.s_state & MINIX_VALID_FS) && !OPT_force |
Denis Vlasenko | 24cfe8f | 2007-01-03 00:39:15 +0000 | [diff] [blame] | 1261 | ) { |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1262 | if (OPT_repair) |
Rob Landley | fd8409f | 2006-06-13 15:31:39 +0000 | [diff] [blame] | 1263 | printf("%s is clean, check is skipped\n", device_name); |
Denis Vlasenko | 6dd392a | 2007-01-03 00:41:53 +0000 | [diff] [blame] | 1264 | return 0; |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1265 | } else if (OPT_force) |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 1266 | printf("Forcing filesystem check on %s\n", device_name); |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1267 | else if (OPT_repair) |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 1268 | printf("Filesystem on %s is dirty, needs checking\n", |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 1269 | device_name); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1270 | |
| 1271 | read_tables(); |
| 1272 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1273 | if (OPT_manual) { |
Denis Vlasenko | a669131 | 2007-06-13 12:28:21 +0000 | [diff] [blame] | 1274 | tcgetattr(0, &sv_termios); |
| 1275 | tmp = sv_termios; |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1276 | tmp.c_lflag &= ~(ICANON | ECHO); |
Denis Vlasenko | 202ac50 | 2008-11-05 13:20:58 +0000 | [diff] [blame] | 1277 | tcsetattr_stdin_TCSANOW(&tmp); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1278 | termios_set = 1; |
| 1279 | } |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1280 | |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1281 | if (version2) { |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1282 | check_root2(); |
| 1283 | check2(); |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1284 | } else { |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1285 | check_root(); |
| 1286 | check(); |
| 1287 | } |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1288 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1289 | if (OPT_verbose) { |
Eric Andersen | 1ca20a7 | 2001-03-21 07:34:27 +0000 | [diff] [blame] | 1290 | int i, free_cnt; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1291 | |
Eric Andersen | 1ca20a7 | 2001-03-21 07:34:27 +0000 | [diff] [blame] | 1292 | for (i = 1, free_cnt = 0; i <= INODES; i++) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1293 | if (!inode_in_use(i)) |
Eric Andersen | 1ca20a7 | 2001-03-21 07:34:27 +0000 | [diff] [blame] | 1294 | free_cnt++; |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1295 | printf("\n%6u inodes used (%u%%)\n", (INODES - free_cnt), |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 1296 | 100 * (INODES - free_cnt) / INODES); |
Eric Andersen | 1ca20a7 | 2001-03-21 07:34:27 +0000 | [diff] [blame] | 1297 | for (i = FIRSTZONE, free_cnt = 0; i < ZONES; i++) |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1298 | if (!zone_in_use(i)) |
Eric Andersen | 1ca20a7 | 2001-03-21 07:34:27 +0000 | [diff] [blame] | 1299 | free_cnt++; |
Denis Vlasenko | aa95959 | 2007-01-03 00:43:19 +0000 | [diff] [blame] | 1300 | printf("%6u zones used (%u%%)\n\n" |
Denys Vlasenko | 60cb48c | 2013-01-14 15:57:44 +0100 | [diff] [blame] | 1301 | "%6u regular files\n" |
| 1302 | "%6u directories\n" |
| 1303 | "%6u character device files\n" |
| 1304 | "%6u block device files\n" |
| 1305 | "%6u links\n" |
| 1306 | "%6u symbolic links\n" |
| 1307 | "------\n" |
| 1308 | "%6u files\n", |
| 1309 | (ZONES - free_cnt), 100 * (ZONES - free_cnt) / ZONES, |
| 1310 | regular, directory, chardev, blockdev, |
| 1311 | links - 2 * directory + 1, symlinks, |
| 1312 | total - 2 * directory + 1); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1313 | } |
| 1314 | if (changed) { |
| 1315 | write_tables(); |
Denys Vlasenko | d60752f | 2015-10-07 22:42:45 +0200 | [diff] [blame] | 1316 | puts("FILE SYSTEM HAS BEEN CHANGED"); |
Rob Landley | 8a62549 | 2006-04-29 20:05:17 +0000 | [diff] [blame] | 1317 | sync(); |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1318 | } else if (OPT_repair) |
Bernhard Reutner-Fischer | e1e5174 | 2008-07-21 13:33:22 +0000 | [diff] [blame] | 1319 | write_superblock(); |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1320 | |
Denis Vlasenko | 9f153f6 | 2008-03-17 08:32:26 +0000 | [diff] [blame] | 1321 | if (OPT_manual) |
Denis Vlasenko | 202ac50 | 2008-11-05 13:20:58 +0000 | [diff] [blame] | 1322 | tcsetattr_stdin_TCSANOW(&sv_termios); |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1323 | |
| 1324 | if (changed) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1325 | retcode += 3; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1326 | if (errors_uncorrected) |
Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1327 | retcode += 4; |
Eric Andersen | e494fdd | 1999-10-19 20:23:03 +0000 | [diff] [blame] | 1328 | return retcode; |
| 1329 | } |