2 * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
3 * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
5 * This file is part of LVM2.
7 * This copyrighted material is made available to anyone wishing to use,
8 * modify, copy, or redistribute it subject to the terms and conditions
9 * of the GNU Lesser General Public License v.2.1.
11 * You should have received a copy of the GNU Lesser General Public License
12 * along with this program; if not, write to the Free Software Foundation,
13 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #include "lvm-types.h"
38 struct config_value *next; /* for arrays */
43 struct config_node *parent, *sib, *child;
44 struct config_value *v;
48 struct config_node *root;
51 struct config_tree_list {
53 struct config_tree *cft;
56 struct config_tree *create_config_tree(const char *filename, int keep_open);
57 struct config_tree *create_config_tree_from_string(struct cmd_context *cmd,
58 const char *config_settings);
59 int override_config_tree_from_string(struct cmd_context *cmd,
60 const char *config_settings);
61 void destroy_config_tree(struct config_tree *cft);
63 typedef uint32_t (*checksum_fn_t) (uint32_t initial, const uint8_t *buf, uint32_t size);
65 int read_config_fd(struct config_tree *cft, struct device *dev,
66 off_t offset, size_t size, off_t offset2, size_t size2,
67 checksum_fn_t checksum_fn, uint32_t checksum);
69 int read_config_file(struct config_tree *cft);
70 int write_config_file(struct config_tree *cft, const char *file,
71 int argc, char **argv);
73 typedef int (*putline_fn)(const char *line, void *baton);
74 int write_config_node(const struct config_node *cn, putline_fn putline, void *baton);
76 time_t config_file_timestamp(struct config_tree *cft);
77 int config_file_changed(struct config_tree *cft);
78 int merge_config_tree(struct cmd_context *cmd, struct config_tree *cft,
79 struct config_tree *newdata);
81 const struct config_node *find_config_node(const struct config_node *cn,
83 const char *find_config_str(const struct config_node *cn, const char *path,
85 int find_config_int(const struct config_node *cn, const char *path, int fail);
86 float find_config_float(const struct config_node *cn, const char *path,
90 * These versions check an override tree, if present, first.
92 const struct config_node *find_config_tree_node(struct cmd_context *cmd,
94 const char *find_config_tree_str(struct cmd_context *cmd,
95 const char *path, const char *fail);
96 int find_config_tree_int(struct cmd_context *cmd, const char *path,
98 float find_config_tree_float(struct cmd_context *cmd, const char *path,
102 * Understands (0, ~0), (y, n), (yes, no), (on,
103 * off), (true, false).
105 int find_config_bool(const struct config_node *cn, const char *path, int fail);
106 int find_config_tree_bool(struct cmd_context *cmd, const char *path, int fail);
108 int get_config_uint32(const struct config_node *cn, const char *path,
111 int get_config_uint64(const struct config_node *cn, const char *path,
114 int get_config_str(const struct config_node *cn, const char *path,
115 const char **result);
117 unsigned maybe_config_section(const char *str, unsigned len);
119 const char *config_parent_name(const struct config_node *n);
121 struct config_node *clone_config_node(struct dm_pool *mem, const struct config_node *cn,