1 /* $NetBSD: unknown.c,v 1.1.1.1 2009/12/02 00:26:20 haad Exp $ */ 2 3 /* 4 * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved. 5 * 6 * This file is part of LVM2. 7 * 8 * This copyrighted material is made available to anyone wishing to use, 9 * modify, copy, or redistribute it subject to the terms and conditions 10 * of the GNU Lesser General Public License v.2.1. 11 * 12 * You should have received a copy of the GNU Lesser General Public License 13 * along with this program; if not, write to the Free Software Foundation, 14 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 15 */ 16 17 #include "lib.h" 18 #include "toolcontext.h" 19 #include "segtype.h" 20 #include "display.h" 21 #include "text_export.h" 22 #include "text_import.h" 23 #include "config.h" 24 #include "str_list.h" 25 #include "targets.h" 26 #include "lvm-string.h" 27 #include "activate.h" 28 #include "str_list.h" 29 #include "metadata.h" 30 31 static const char *_unknown_name(const struct lv_segment *seg) 32 { 33 34 return seg->segtype->name; 35 } 36 37 static int _unknown_text_import(struct lv_segment *seg, const struct config_node *sn, 38 struct dm_hash_table *pv_hash) 39 { 40 struct config_node *new, *last = NULL, *head = NULL; 41 const struct config_node *current; 42 log_verbose("importing unknown segment"); 43 for (current = sn; current != NULL; current = current->sib) { 44 if (!strcmp(current->key, "type") || !strcmp(current->key, "start_extent") || 45 !strcmp(current->key, "tags") || !strcmp(current->key, "extent_count")) 46 continue; 47 new = clone_config_node(seg->lv->vg->vgmem, current, 0); 48 if (!new) 49 return_0; 50 if (last) 51 last->sib = new; 52 if (!head) 53 head = new; 54 last = new; 55 } 56 seg->segtype_private = head; 57 return 1; 58 } 59 60 static int _unknown_text_export(const struct lv_segment *seg, struct formatter *f) 61 { 62 struct config_node *cn = seg->segtype_private; 63 return out_config_node(f, cn); 64 } 65 66 #ifdef DEVMAPPER_SUPPORT 67 static int _unknown_add_target_line(struct dev_manager *dm __attribute((unused)), 68 struct dm_pool *mem __attribute((unused)), 69 struct cmd_context *cmd __attribute((unused)), 70 void **target_state __attribute((unused)), 71 struct lv_segment *seg __attribute((unused)), 72 struct dm_tree_node *node, uint64_t len, 73 uint32_t *pvmove_mirror_count __attribute((unused))) 74 { 75 return dm_tree_node_add_error_target(node, len); 76 } 77 #endif 78 79 static void _unknown_destroy(const struct segment_type *segtype) 80 { 81 dm_free((void *)segtype); 82 } 83 84 static struct segtype_handler _unknown_ops = { 85 .name = _unknown_name, 86 .text_import = _unknown_text_import, 87 .text_export = _unknown_text_export, 88 #ifdef DEVMAPPER_SUPPORT 89 .add_target_line = _unknown_add_target_line, 90 #endif 91 .destroy = _unknown_destroy, 92 }; 93 94 struct segment_type *init_unknown_segtype(struct cmd_context *cmd, const char *name) 95 { 96 struct segment_type *segtype = dm_malloc(sizeof(*segtype)); 97 98 if (!segtype) 99 return_NULL; 100 101 segtype->cmd = cmd; 102 segtype->ops = &_unknown_ops; 103 segtype->name = dm_pool_strdup(cmd->mem, name); 104 segtype->private = NULL; 105 segtype->flags = SEG_UNKNOWN | SEG_VIRTUAL | SEG_CANNOT_BE_ZEROED; 106 107 log_very_verbose("Initialised segtype: %s", segtype->name); 108 109 return segtype; 110 } 111