126 lines
3.0 KiB
C
126 lines
3.0 KiB
C
/*
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* ucimap - library for mapping uci sections into data structures
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* Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <stdbool.h>
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#include "uci_list.h"
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#include "uci.h"
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#endif
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#define BITFIELD_SIZE(_fields) (((_fields) / 8) + 1)
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#define CLR_BIT(_name, _bit) do { \
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_name[(_bit) / 8] &= ~(1 << ((_bit) % 8)); \
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} while (0)
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#define SET_BIT(_name, _bit) do { \
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_name[(_bit) / 8] |= (1 << ((_bit) % 8)); \
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} while (0)
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#define TEST_BIT(_name, _bit) \
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(_name[(_bit) / 8] & (1 << ((_bit) % 8)))
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#define OPTMAP_OPTION(_maptype, _type, _field, ...) \
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{ \
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.type = _maptype, \
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.name = #_field, \
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.offset = offsetof(_type, _field), \
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__VA_ARGS__ \
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}
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struct uci_sectmap;
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struct uci_optmap;
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struct uci_map {
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struct uci_sectmap **sections;
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unsigned int n_sections;
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struct list_head sdata;
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struct list_head fixup;
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void *priv; /* user data */
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};
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enum ucimap_type {
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/* types */
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UCIMAP_SIMPLE = 0x00,
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UCIMAP_LIST = 0x10,
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UCIMAP_TYPE = 0xf0, /* type mask */
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/* subtypes */
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UCIMAP_STRING = 0x0,
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UCIMAP_BOOL = 0x1,
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UCIMAP_INT = 0x2,
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UCIMAP_SECTION = 0x3,
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UCIMAP_SUBTYPE = 0xf, /* subtype mask */
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};
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union uci_datamap {
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int i;
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bool b;
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const char *s;
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void *section;
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struct list_head list;
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};
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struct uci_listmap {
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struct list_head list;
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union uci_datamap data;
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};
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struct uci_sectmap {
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/* type string for the uci section */
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const char *type;
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/* length of the struct to map into */
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unsigned int alloc_len;
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/* give the caller time to initialize the preallocated struct */
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int (*init_section)(struct uci_map *map, void *section, struct uci_section *s);
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/* pass the fully processed struct to the callback after the section end */
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int (*add_section)(struct uci_map *map, void *section);
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/* let the callback clean up its own stuff in the section */
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int (*free_section)(struct uci_map *map, void *section);
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/* list of option mappings for this section */
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struct uci_optmap *options;
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unsigned int n_options;
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};
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struct uci_optmap {
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unsigned int offset;
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const char *name;
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enum ucimap_type type;
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union {
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struct {
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int base;
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int min;
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int max;
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} i;
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struct {
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int maxlen;
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} s;
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struct uci_sectmap *sm;
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} data;
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};
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extern int ucimap_init(struct uci_map *map);
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extern void ucimap_cleanup(struct uci_map *map);
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extern void ucimap_set_changed(void *section, void *field);
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extern int ucimap_store_section(struct uci_map *map, struct uci_package *p, void *section);
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extern void ucimap_parse(struct uci_map *map, struct uci_package *pkg);
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