+
+int
+do_pvcreate (const char *device)
+{
+ char *err;
+ int r;
+
+ r = command (NULL, &err,
+ "lvm", "pvcreate", device, NULL);
+ if (r == -1) {
+ reply_with_error ("%s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+
+ udev_settle ();
+
+ return 0;
+}
+
+int
+do_vgcreate (const char *volgroup, char *const *physvols)
+{
+ char *err;
+ int r, argc, i;
+ const char **argv;
+
+ argc = count_strings (physvols) + 3;
+ argv = malloc (sizeof (char *) * (argc + 1));
+ if (argv == NULL) {
+ reply_with_perror ("malloc");
+ return -1;
+ }
+ argv[0] = "lvm";
+ argv[1] = "vgcreate";
+ argv[2] = volgroup;
+ for (i = 3; i <= argc; ++i)
+ argv[i] = physvols[i-3];
+
+ r = commandv (NULL, &err, (const char * const*) argv);
+ if (r == -1) {
+ reply_with_error ("%s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+
+ udev_settle ();
+
+ return 0;
+}
+
+int
+do_lvcreate (const char *logvol, const char *volgroup, int mbytes)
+{
+ char *err;
+ int r;
+ char size[64];
+
+ snprintf (size, sizeof size, "%d", mbytes);
+
+ r = command (NULL, &err,
+ "lvm", "lvcreate",
+ "-L", size, "-n", logvol, volgroup, NULL);
+ if (r == -1) {
+ reply_with_error ("%s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+
+ udev_settle ();
+
+ return 0;
+}
+
+int
+do_lvresize (const char *logvol, int mbytes)
+{
+ char *err;
+ int r;
+ char size[64];
+
+ snprintf (size, sizeof size, "%d", mbytes);
+
+ r = command (NULL, &err,
+ "lvm", "lvresize",
+ "--force", "-L", size, logvol, NULL);
+ if (r == -1) {
+ reply_with_error ("%s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}
+
+int
+do_lvresize_free (const char *logvol, int percent)
+{
+ char *err;
+ int r;
+
+ if (percent < 0 || percent > 100) {
+ reply_with_error ("percentage must be [0..100] (was %d)", percent);
+ return -1;
+ }
+
+ char size[64];
+ snprintf (size, sizeof size, "+%d%%FREE", percent);
+
+ r = command (NULL, &err,
+ "lvm", "lvresize", "-l", size, logvol, NULL);
+ if (r == -1) {
+ reply_with_error ("%s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}
+
+/* Super-dangerous command used for testing. It removes all
+ * LVs, VGs and PVs permanently.
+ */
+int
+do_lvm_remove_all (void)
+{
+ char **xs;
+ int i, r;
+ char *err;
+
+ /* Remove LVs. */
+ xs = do_lvs ();
+ if (xs == NULL)
+ return -1;
+
+ for (i = 0; xs[i] != NULL; ++i) {
+ r = command (NULL, &err, "lvm", "lvremove", "-f", xs[i], NULL);
+ if (r == -1) {
+ reply_with_error ("lvremove: %s: %s", xs[i], err);
+ free (err);
+ free_strings (xs);
+ return -1;
+ }
+ free (err);
+ }
+ free_strings (xs);
+
+ /* Remove VGs. */
+ xs = do_vgs ();
+ if (xs == NULL)
+ return -1;
+
+ for (i = 0; xs[i] != NULL; ++i) {
+ r = command (NULL, &err, "lvm", "vgremove", "-f", xs[i], NULL);
+ if (r == -1) {
+ reply_with_error ("vgremove: %s: %s", xs[i], err);
+ free (err);
+ free_strings (xs);
+ return -1;
+ }
+ free (err);
+ }
+ free_strings (xs);
+
+ /* Remove PVs. */
+ xs = do_pvs ();
+ if (xs == NULL)
+ return -1;
+
+ for (i = 0; xs[i] != NULL; ++i) {
+ r = command (NULL, &err, "lvm", "pvremove", "-f", xs[i], NULL);
+ if (r == -1) {
+ reply_with_error ("pvremove: %s: %s", xs[i], err);
+ free (err);
+ free_strings (xs);
+ return -1;
+ }
+ free (err);
+ }
+ free_strings (xs);
+
+ udev_settle ();
+
+ /* There, that was easy, sorry about your data. */
+ return 0;
+}
+
+int
+do_lvremove (const char *device)
+{
+ char *err;
+ int r;
+
+ r = command (NULL, &err,
+ "lvm", "lvremove", "-f", device, NULL);
+ if (r == -1) {
+ reply_with_error ("%s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+
+ udev_settle ();
+
+ return 0;
+}
+
+int
+do_vgremove (const char *device)
+{
+ char *err;
+ int r;
+
+ r = command (NULL, &err,
+ "lvm", "vgremove", "-f", device, NULL);
+ if (r == -1) {
+ reply_with_error ("%s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+
+ udev_settle ();
+
+ return 0;
+}
+
+int
+do_pvremove (const char *device)
+{
+ char *err;
+ int r;
+
+ r = command (NULL, &err,
+ "lvm", "pvremove", "-ff", device, NULL);
+ if (r == -1) {
+ reply_with_error ("%s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+
+ udev_settle ();
+
+ return 0;
+}
+
+int
+do_pvresize (const char *device)
+{
+ char *err;
+ int r;
+
+ r = command (NULL, &err,
+ "lvm", "pvresize", device, NULL);
+ if (r == -1) {
+ reply_with_error ("%s: %s", device, err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}
+
+int
+do_vg_activate (int activate, char *const *volgroups)
+{
+ char *err;
+ int r, i, argc;
+ const char **argv;
+
+ argc = count_strings (volgroups) + 4;
+ argv = malloc (sizeof (char *) * (argc+1));
+ if (argv == NULL) {
+ reply_with_perror ("malloc");
+ return -1;
+ }
+
+ argv[0] = "lvm";
+ argv[1] = "vgchange";
+ argv[2] = "-a";
+ argv[3] = activate ? "y" : "n";
+ for (i = 4; i <= argc; ++i)
+ argv[i] = volgroups[i-4];
+
+ r = commandv (NULL, &err, (const char * const*) argv);
+ if (r == -1) {
+ reply_with_error ("vgchange: %s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+
+ udev_settle ();
+
+ return 0;
+}
+
+int
+do_vg_activate_all (int activate)
+{
+ char *empty[] = { NULL };
+ return do_vg_activate (activate, empty);
+}
+
+int
+do_lvrename (const char *logvol, const char *newlogvol)
+{
+ char *err;
+ int r;
+
+ r = command (NULL, &err,
+ "lvm", "lvrename",
+ logvol, newlogvol, NULL);
+ if (r == -1) {
+ reply_with_error ("%s -> %s: %s", logvol, newlogvol, err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+
+ udev_settle ();
+
+ return 0;
+}
+
+int
+do_vgrename (const char *volgroup, const char *newvolgroup)
+{
+ char *err;
+ int r;
+
+ r = command (NULL, &err,
+ "lvm", "vgrename",
+ volgroup, newvolgroup, NULL);
+ if (r == -1) {
+ reply_with_error ("%s -> %s: %s", volgroup, newvolgroup, err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+
+ udev_settle ();
+
+ return 0;
+}
+
+static char *
+get_lvm_field (const char *cmd, const char *field, const char *device)
+{
+ char *out;
+ char *err;
+ int r = command (&out, &err,
+ "lvm", cmd,
+ "--unbuffered", "--noheadings", "-o", field,
+ device, NULL);
+ if (r == -1) {
+ reply_with_error ("%s: %s", device, err);
+ free (out);
+ free (err);
+ return NULL;
+ }
+
+ free (err);
+
+ trim (out);
+ return out; /* Caller frees. */
+}
+
+char *
+do_pvuuid (const char *device)
+{
+ return get_lvm_field ("pvs", "pv_uuid", device);
+}
+
+char *
+do_vguuid (const char *vgname)
+{
+ return get_lvm_field ("vgs", "vg_uuid", vgname);
+}
+
+char *
+do_lvuuid (const char *device)
+{
+ return get_lvm_field ("lvs", "lv_uuid", device);
+}
+
+static char **
+get_lvm_fields (const char *cmd, const char *field, const char *device)
+{
+ char *out;
+ char *err;
+ int r = command (&out, &err,
+ "lvm", cmd,
+ "--unbuffered", "--noheadings", "-o", field,
+ device, NULL);
+ if (r == -1) {
+ reply_with_error ("%s: %s", device, err);
+ free (out);
+ free (err);
+ return NULL;
+ }
+
+ free (err);
+
+ char **ret = split_lines (out);
+ free (out);
+
+ if (ret == NULL)
+ return NULL;
+
+ size_t i;
+ for (i = 0; ret[i] != NULL; ++i)
+ trim (ret[i]);
+
+ return ret;
+}
+
+char **
+do_vgpvuuids (const char *vgname)
+{
+ return get_lvm_fields ("vgs", "pv_uuid", vgname);
+}
+
+char **
+do_vglvuuids (const char *vgname)
+{
+ return get_lvm_fields ("vgs", "lv_uuid", vgname);
+}
+
+int
+do_vgscan (void)
+{
+ char *err;
+ int r;
+
+ r = command (NULL, &err,
+ "lvm", "vgscan", NULL);
+ if (r == -1) {
+ reply_with_error ("%s", err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}