/* libguestfs - the guestfsd daemon
- * Copyright (C) 2009 Red Hat Inc.
+ * Copyright (C) 2009 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
char **ret = NULL;
int size = 0, alloc = 0;
- IS_DEVICE (device, NULL);
-
r = command (&out, &err, "/sbin/tune2fs", "-l", device, NULL);
if (r == -1) {
reply_with_error ("tune2fs: %s", err);
do { colon++; } while (*colon && isspace (*colon));
if (add_string (&ret, &size, &alloc, p) == -1) {
- free (out);
- return NULL;
+ free (out);
+ return NULL;
}
if (strcmp (colon, "<none>") == 0 ||
- strcmp (colon, "<not available>") == 0 ||
- strcmp (colon, "(none)") == 0) {
- if (add_string (&ret, &size, &alloc, "") == -1) {
- free (out);
- return NULL;
- }
+ strcmp (colon, "<not available>") == 0 ||
+ strcmp (colon, "(none)") == 0) {
+ if (add_string (&ret, &size, &alloc, "") == -1) {
+ free (out);
+ return NULL;
+ }
} else {
- if (add_string (&ret, &size, &alloc, colon) == -1) {
- free (out);
- return NULL;
- }
+ if (add_string (&ret, &size, &alloc, colon) == -1) {
+ free (out);
+ return NULL;
+ }
}
}
else {
if (add_string (&ret, &size, &alloc, p) == -1) {
- free (out);
- return NULL;
+ free (out);
+ return NULL;
}
if (add_string (&ret, &size, &alloc, "") == -1) {
- free (out);
- return NULL;
+ free (out);
+ return NULL;
}
}
free (out);
return p; /* caller frees */
}
+
+int
+do_resize2fs (const char *device)
+{
+ char *err;
+ int r;
+
+ r = command (NULL, &err, "/sbin/resize2fs", device, NULL);
+ if (r == -1) {
+ reply_with_error ("resize2fs: %s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}
+
+int
+do_e2fsck_f (const char *device)
+{
+ char *err;
+ int r;
+
+ r = command (NULL, &err, "/sbin/e2fsck", "-p", "-f", device, NULL);
+ if (r == -1) {
+ reply_with_error ("e2fsck: %s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}
+
+int
+do_mke2journal (int blocksize, const char *device)
+{
+ char *err;
+ int r;
+
+ char blocksize_s[32];
+ snprintf (blocksize_s, sizeof blocksize_s, "%d", blocksize);
+
+ r = command (NULL, &err,
+ "/sbin/mke2fs", "-O", "journal_dev", "-b", blocksize_s,
+ device, NULL);
+ if (r == -1) {
+ reply_with_error ("mke2journal: %s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}
+
+int
+do_mke2journal_L (int blocksize, const char *label, const char *device)
+{
+ char *err;
+ int r;
+
+ char blocksize_s[32];
+ snprintf (blocksize_s, sizeof blocksize_s, "%d", blocksize);
+
+ r = command (NULL, &err,
+ "/sbin/mke2fs", "-O", "journal_dev", "-b", blocksize_s,
+ "-L", label,
+ device, NULL);
+ if (r == -1) {
+ reply_with_error ("mke2journal_L: %s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}
+
+int
+do_mke2journal_U (int blocksize, const char *uuid, const char *device)
+{
+ char *err;
+ int r;
+
+ char blocksize_s[32];
+ snprintf (blocksize_s, sizeof blocksize_s, "%d", blocksize);
+
+ r = command (NULL, &err,
+ "/sbin/mke2fs", "-O", "journal_dev", "-b", blocksize_s,
+ "-U", uuid,
+ device, NULL);
+ if (r == -1) {
+ reply_with_error ("mke2journal_U: %s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}
+
+/* Run mke2fs to create a filesystem of type fstype, where fstype
+ * is the string "ext2", "ext3" or "ext4".
+ *
+ * This is more complex than it seems.
+ *
+ * On RHEL 5, the -t option was deprecated. Moreover RHEL <= 5.4
+ * systems have a bug where the -t option doesn't work (it doesn't
+ * correctly ignore the following argument).
+ *
+ * On RHEL 5, to create an ext4dev filesystem you have to use
+ * the special command /sbin/mke4fs. This can also create ext2/3
+ * using the '-t fstype' option.
+ *
+ * On Fedora 11+, mke4fs was renamed mke2fs, and it can use the
+ * '-t fstype' option to specify the filesystem type.
+ *
+ * So it seems best to run /sbin/mke4fs if it exists, or /sbin/mke2fs
+ * otherwise. We specify e4fsprogs in the package list to ensure it
+ * is loaded if it exists.
+ */
+static const char *
+get_mke2fs (void)
+{
+ static const char *const progs[] = { "/sbin/mke4fs", "/sbin/mke2fs", NULL };
+ int i;
+
+ for (i = 0; progs[i]; ++i)
+ if (access (progs[i], F_OK) == 0)
+ return progs[i];
+
+ reply_with_error ("mke2fs: no mke2fs binary found in appliance");
+ return NULL;
+}
+
+int
+do_mke2fs_J (const char *fstype, int blocksize, const char *device,
+ const char *journal)
+{
+ char *err;
+ int r;
+
+ const char *prog = get_mke2fs ();
+ if (!prog) return -1;
+
+ char blocksize_s[32];
+ snprintf (blocksize_s, sizeof blocksize_s, "%d", blocksize);
+
+ int len = strlen (journal);
+ char jdev[len+32];
+ snprintf (jdev, len+32, "device=%s", journal);
+
+ r = command (NULL, &err,
+ prog, "-t", fstype, "-J", jdev, "-b", blocksize_s,
+ device, NULL);
+ if (r == -1) {
+ reply_with_error ("mke2fs_J: %s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}
+
+int
+do_mke2fs_JL (const char *fstype, int blocksize, const char *device,
+ const char *label)
+{
+ char *err;
+ int r;
+
+ const char *prog = get_mke2fs ();
+ if (!prog) return -1;
+
+ char blocksize_s[32];
+ snprintf (blocksize_s, sizeof blocksize_s, "%d", blocksize);
+
+ int len = strlen (label);
+ char jdev[len+32];
+ snprintf (jdev, len+32, "device=LABEL=%s", label);
+
+ r = command (NULL, &err,
+ prog, "-t", fstype, "-J", jdev, "-b", blocksize_s,
+ device, NULL);
+ if (r == -1) {
+ reply_with_error ("mke2fs_JL: %s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}
+
+int
+do_mke2fs_JU (const char *fstype, int blocksize, const char *device,
+ const char *uuid)
+{
+ char *err;
+ int r;
+
+ const char *prog = get_mke2fs ();
+ if (!prog) return -1;
+
+ char blocksize_s[32];
+ snprintf (blocksize_s, sizeof blocksize_s, "%d", blocksize);
+
+ int len = strlen (uuid);
+ char jdev[len+32];
+ snprintf (jdev, len+32, "device=UUID=%s", uuid);
+
+ r = command (NULL, &err,
+ prog, "-t", fstype, "-J", jdev, "-b", blocksize_s,
+ device, NULL);
+ if (r == -1) {
+ reply_with_error ("mke2fs_JU: %s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}
git.annexia.org / libguestfs.git / blobdiff