Whamcloud - gitweb
Merge branch 'maint' into next
[tools/e2fsprogs.git] / misc / util.c
index 53f3613..3e83169 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * util.c --- helper functions used by tune2fs and mke2fs
- * 
+ *
  * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o.
  *
  * %Begin-Header%
@@ -9,29 +9,53 @@
  * %End-Header%
  */
 
+#ifndef _LARGEFILE_SOURCE
 #define _LARGEFILE_SOURCE
+#endif
+#ifndef _LARGEFILE64_SOURCE
 #define _LARGEFILE64_SOURCE
+#endif
+
+#ifdef _WIN32
+#define _POSIX
+#define __USE_MINGW_ALARM
+#endif
 
+#include "config.h"
+#include <fcntl.h>
+#include <setjmp.h>
+#include <signal.h>
 #include <stdio.h>
 #include <string.h>
 #ifdef HAVE_ERRNO_H
 #include <errno.h>
 #endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
 #ifdef HAVE_LINUX_MAJOR_H
 #include <linux/major.h>
 #endif
+#include <sys/types.h>
 #ifdef HAVE_SYS_STAT_H
 #include <sys/stat.h>
 #endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <time.h>
 
 #include "et/com_err.h"
 #include "e2p/e2p.h"
 #include "ext2fs/ext2_fs.h"
 #include "ext2fs/ext2fs.h"
-#include "nls-enable.h"
+#include "support/nls-enable.h"
+#include "support/devname.h"
 #include "blkid/blkid.h"
 #include "util.h"
 
+char *journal_location_string = NULL;
+
 #ifndef HAVE_STRCASECMP
 int strcasecmp (char *s1, char *s2)
 {
@@ -62,82 +86,42 @@ char *get_progname(char *argv_zero)
                return cp+1;
 }
 
-void proceed_question(void)
+static jmp_buf alarm_env;
+
+static void alarm_signal(int signal EXT2FS_ATTR((unused)))
+{
+       longjmp(alarm_env, 1);
+}
+
+void proceed_question(int delay)
 {
        char buf[256];
        const char *short_yes = _("yY");
+       const char *english_yes = "yY";
 
        fflush(stdout);
        fflush(stderr);
-       fputs(_("Proceed anyway? (y,n) "), stdout);
+       if (delay > 0) {
+               if (setjmp(alarm_env)) {
+                       signal(SIGALRM, SIG_IGN);
+                       printf("%s", _("<proceeding>\n"));
+                       return;
+               }
+               signal(SIGALRM, alarm_signal);
+               printf(_("Proceed anyway (or wait %d seconds to proceed) ? (y,N) "),
+                      delay);
+               alarm(delay);
+       } else
+               fputs(_("Proceed anyway? (y,N) "), stdout);
        buf[0] = 0;
-       fgets(buf, sizeof(buf), stdin);
-       if (strchr(short_yes, buf[0]) == 0)
-               exit(1);
-}
-
-void check_plausibility(const char *device)
-{
-       int val;
-#ifdef HAVE_OPEN64
-       struct stat64 s;
-       
-       val = stat64(device, &s);
-#else
-       struct stat s;
-       
-       val = stat(device, &s);
-#endif
-       
-       if(val == -1) {
-               fprintf(stderr, _("Could not stat %s --- %s\n"),
-                       device, error_message(errno));
-               if (errno == ENOENT)
-                       fputs(_("\nThe device apparently does not exist; "
-                               "did you specify it correctly?\n"), stderr);
+       if (!fgets(buf, sizeof(buf), stdin) ||
+           strchr(_("nN"), buf[0]) ||
+           !(strchr(short_yes, buf[0]) ||
+             strchr(english_yes, buf[0]))) {
+               putc('\n', stdout);
                exit(1);
        }
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-       /* On FreeBSD, all disk devices are character specials */
-       if (!S_ISBLK(s.st_mode) && !S_ISCHR(s.st_mode))
-#else
-       if (!S_ISBLK(s.st_mode))
-#endif
-       {
-               printf(_("%s is not a block special device.\n"), device);
-               proceed_question();
-               return;
-       }
-
-#ifdef HAVE_LINUX_MAJOR_H
-#ifndef MAJOR
-#define MAJOR(dev)     ((dev)>>8)
-#define MINOR(dev)     ((dev) & 0xff)
-#endif
-#ifndef SCSI_BLK_MAJOR
-#ifdef SCSI_DISK0_MAJOR
-#ifdef SCSI_DISK8_MAJOR
-#define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
-  ((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR) || \
-  ((M) >= SCSI_DISK8_MAJOR && (M) <= SCSI_DISK15_MAJOR))
-#else
-#define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
-  ((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR))
-#endif /* defined(SCSI_DISK8_MAJOR) */
-#define SCSI_BLK_MAJOR(M) (SCSI_DISK_MAJOR((M)) || (M) == SCSI_CDROM_MAJOR)
-#else
-#define SCSI_BLK_MAJOR(M)  ((M) == SCSI_DISK_MAJOR || (M) == SCSI_CDROM_MAJOR)
-#endif /* defined(SCSI_DISK0_MAJOR) */
-#endif /* defined(SCSI_BLK_MAJOR) */
-       if (((MAJOR(s.st_rdev) == HD_MAJOR &&
-             MINOR(s.st_rdev)%64 == 0) ||
-            (SCSI_BLK_MAJOR(MAJOR(s.st_rdev)) &&
-             MINOR(s.st_rdev)%16 == 0))) {
-               printf(_("%s is entire device, not just one partition!\n"),
-                      device);
-               proceed_question();
-       }
-#endif
+       signal(SIGALRM, SIG_IGN);
 }
 
 void check_mount(const char *device, int force, const char *type)
@@ -154,7 +138,7 @@ void check_mount(const char *device, int force, const char *type)
        }
        if (mount_flags & EXT2_MF_MOUNTED) {
                fprintf(stderr, _("%s is mounted; "), device);
-               if (force > 2) {
+               if (force >= 2) {
                        fputs(_("mke2fs forced anyway.  Hope /etc/mtab is "
                                "incorrect.\n"), stderr);
                        return;
@@ -166,7 +150,7 @@ void check_mount(const char *device, int force, const char *type)
        if (mount_flags & EXT2_MF_BUSY) {
                fprintf(stderr, _("%s is apparently in use by the system; "),
                        device);
-               if (force > 2) {
+               if (force >= 2) {
                        fputs(_("mke2fs forced anyway.\n"), stderr);
                        return;
                }
@@ -194,7 +178,7 @@ void parse_journal_opts(const char *opts)
                if (p) {
                        *p = 0;
                        next = p+1;
-               } 
+               }
                arg = strchr(token, '=');
                if (arg) {
                        *arg = 0;
@@ -205,8 +189,12 @@ void parse_journal_opts(const char *opts)
                       arg ? arg : "NONE");
 #endif
                if (strcmp(token, "device") == 0) {
-                       journal_device = blkid_get_devname(NULL, arg, NULL);
+                       journal_device = get_devname(NULL, arg, NULL);
                        if (!journal_device) {
+                               if (arg)
+                                       fprintf(stderr, _("\nCould not find "
+                                               "journal device matching %s\n"),
+                                               arg);
                                journal_usage++;
                                continue;
                        }
@@ -218,6 +206,20 @@ void parse_journal_opts(const char *opts)
                        journal_size = strtoul(arg, &p, 0);
                        if (*p)
                                journal_usage++;
+               } else if (strcmp(token, "fast_commit_size") == 0) {
+                       if (!arg) {
+                               journal_usage++;
+                               continue;
+                       }
+                       journal_fc_size = strtoul(arg, &p, 0);
+                       if (*p)
+                               journal_usage++;
+               } else if (!strcmp(token, "location")) {
+                       if (!arg) {
+                               journal_usage++;
+                               continue;
+                       }
+                       journal_location_string = strdup(arg);
                } else if (strcmp(token, "v1_superblock") == 0) {
                        journal_flags |= EXT2_MKJOURNAL_V1_SUPER;
                        continue;
@@ -231,72 +233,98 @@ void parse_journal_opts(const char *opts)
                        "\tis set off by an equals ('=') sign.\n\n"
                        "Valid journal options are:\n"
                        "\tsize=<journal size in megabytes>\n"
-                       "\tdevice=<journal device>\n\n"
+                       "\tdevice=<journal device>\n"
+                       "\tlocation=<journal location>\n\n"
                        "The journal size must be between "
-                       "1024 and 102400 filesystem blocks.\n\n"), stderr);
+                       "1024 and 10240000 filesystem blocks.\n\n"), stderr);
                free(buf);
                exit(1);
        }
        free(buf);
-}      
+}
+
+static inline int jsize_to_blks(ext2_filsys fs, int size)
+{
+       return (size * 1024) / (fs->blocksize / 1024);
+}
+
+/* Fast commit size is in KBs */
+static inline int fcsize_to_blks(ext2_filsys fs, int size)
+{
+       return (size * 1024) / (fs->blocksize);
+}
 
 /*
  * Determine the number of journal blocks to use, either via
  * user-specified # of megabytes, or via some intelligently selected
  * defaults.
- * 
- * Find a reasonable journal file size (in blocks) given the number of blocks
- * in the filesystem.  For very small filesystems, it is not reasonable to
- * have a journal that fills more than half of the filesystem.
+ *
+ * Find a reasonable journal file size (in blocks) given the number of blocks in
+ * the filesystem. For very small filesystems, it is not reasonable to have a
+ * journal that fills more than half of the filesystem.
  */
-int figure_journal_size(int size, ext2_filsys fs)
+void figure_journal_size(struct ext2fs_journal_params *jparams,
+               int requested_j_size, int requested_fc_size, ext2_filsys fs)
 {
-       blk_t j_blocks;
+       int total_blocks, ret;
 
-       if (fs->super->s_blocks_count < 2048) {
+       ret = ext2fs_get_journal_params(jparams, fs);
+       if (ret) {
                fputs(_("\nFilesystem too small for a journal\n"), stderr);
-               return 0;
+               return;
        }
-       
-       if (size > 0) {
-               j_blocks = size * 1024 / (fs->blocksize / 1024);
-               if (j_blocks < 1024 || j_blocks > 10240000) {
-                       fprintf(stderr, _("\nThe requested journal "
+
+       if (requested_j_size > 0 ||
+               (ext2fs_has_feature_fast_commit(fs->super) && requested_fc_size > 0)) {
+               if (requested_j_size > 0)
+                       jparams->num_journal_blocks =
+                               jsize_to_blks(fs, requested_j_size);
+               if (ext2fs_has_feature_fast_commit(fs->super) &&
+                       requested_fc_size > 0)
+                       jparams->num_fc_blocks =
+                               fcsize_to_blks(fs, requested_fc_size);
+               else if (!ext2fs_has_feature_fast_commit(fs->super))
+                       jparams->num_fc_blocks = 0;
+               total_blocks = jparams->num_journal_blocks + jparams->num_fc_blocks;
+               if (total_blocks < 1024 || total_blocks > 10240000) {
+                       fprintf(stderr, _("\nThe total requested journal "
                                "size is %d blocks; it must be\n"
                                "between 1024 and 10240000 blocks.  "
                                "Aborting.\n"),
-                               j_blocks);
+                               total_blocks);
                        exit(1);
                }
-               if (j_blocks > fs->super->s_free_blocks_count / 2) {
-                       fputs(_("\nJournal size too big for filesystem.\n"),
+               if ((unsigned int) total_blocks > ext2fs_free_blocks_count(fs->super) / 2) {
+                       fputs(_("\nTotal journal size too big for filesystem.\n"),
                              stderr);
                        exit(1);
                }
-               return j_blocks;
        }
-
-       if (fs->super->s_blocks_count < 32768)
-               j_blocks = 1400;
-       else if (fs->super->s_blocks_count < 256*1024)
-               j_blocks = 4096;
-       else if (fs->super->s_blocks_count < 512*1024)
-               j_blocks = 8192;
-       else if (fs->super->s_blocks_count < 1024*1024)
-               j_blocks = 16384;
-       else
-               j_blocks = 32768;
-
-
-       return j_blocks;
 }
 
-void print_check_message(ext2_filsys fs)
+void print_check_message(int mnt, unsigned int check)
 {
+       if (mnt < 0)
+               mnt = 0;
+       if (!mnt && !check)
+               return;
        printf(_("This filesystem will be automatically "
                 "checked every %d mounts or\n"
                 "%g days, whichever comes first.  "
                 "Use tune2fs -c or -i to override.\n"),
-              fs->super->s_max_mnt_count,
-              (double)fs->super->s_checkinterval / (3600 * 24));
+              mnt, ((double) check) / (3600 * 24));
+}
+
+void dump_mmp_msg(struct mmp_struct *mmp, const char *msg)
+{
+
+       if (msg)
+               printf("MMP check failed: %s\n", msg);
+       if (mmp) {
+               time_t t = mmp->mmp_time;
+
+               printf("MMP error info: node: %.*s, device: %.*s, updated: %s",
+                      EXT2_LEN_STR(mmp->mmp_nodename),
+                      EXT2_LEN_STR(mmp->mmp_bdevname), ctime(&t));
+       }
 }