ucimap-example.c

   1 /*
   2  * ucimap-example - sample code for the ucimap library
   3  * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14 #include <strings.h>
  15 #include <string.h>
  16 #include <stdlib.h>
  17 #include <unistd.h>
  18 #include <ucimap.h>
  19
  20 struct list_head ifs;
  21
  22 struct uci_network {
  23         struct list_head list;
  24         struct list_head alias;
  25
  26         const char *name;
  27         const char *proto;
  28         const char *ifname;
  29         const char *ipaddr;
  30         int test;
  31         bool enabled;
  32         struct ucimap_list *aliases;
  33 };
  34
  35 struct uci_alias {
  36         struct list_head list;
  37
  38         const char *name;
  39         struct uci_network *interface;
  40 };
  41
  42 static int
  43 network_init_interface(struct uci_map *map, void *section, struct uci_section *s)
  44 {
  45         struct uci_network *net = section;
  46
  47         INIT_LIST_HEAD(&net->list);
  48         INIT_LIST_HEAD(&net->alias);
  49         net->name = s->e.name;
  50         net->test = -1;
  51         return 0;
  52 }
  53
  54 static int
  55 network_init_alias(struct uci_map *map, void *section, struct uci_section *s)
  56 {
  57         struct uci_alias *alias = section;
  58
  59         INIT_LIST_HEAD(&alias->list);
  60         alias->name = s->e.name;
  61         return 0;
  62 }
  63
  64 static int
  65 network_add_interface(struct uci_map *map, void *section)
  66 {
  67         struct uci_network *net = section;
  68
  69         list_add(&net->list, &ifs);
  70
  71         return 0;
  72 }
  73
  74 static int
  75 network_add_alias(struct uci_map *map, void *section)
  76 {
  77         struct uci_alias *a = section;
  78
  79         if (a->interface)
  80                 list_add(&a->list, &a->interface->alias);
  81
  82         return 0;
  83 }
  84
  85 static struct uci_sectmap network_interface;
  86 static struct uci_sectmap network_alias;
  87
  88 static struct uci_optmap network_interface_options[] = {
  89         OPTMAP_OPTION(UCIMAP_STRING, struct uci_network, proto, .data.s.maxlen = 32),
  90         OPTMAP_OPTION(UCIMAP_STRING, struct uci_network, ifname),
  91         OPTMAP_OPTION(UCIMAP_STRING, struct uci_network, ipaddr),
  92         OPTMAP_OPTION(UCIMAP_BOOL, struct uci_network, enabled),
  93         OPTMAP_OPTION(UCIMAP_INT, struct uci_network, test),
  94         OPTMAP_OPTION(UCIMAP_LIST | UCIMAP_SECTION, struct uci_network, aliases, .data.sm = &network_alias),
  95 };
  96
  97 static struct uci_sectmap network_interface = {
  98         .type = "interface",
  99         .options = network_interface_options,
 100         .alloc_len = sizeof(struct uci_network),
 101         .init_section = network_init_interface,
 102         .add_section = network_add_interface,
 103         .n_options = ARRAY_SIZE(network_interface_options),
 104 };
 105
 106 static struct uci_optmap network_alias_options[] = {
 107         OPTMAP_OPTION(UCIMAP_SECTION, struct uci_alias, interface, .data.sm = &network_interface),
 108 };
 109
 110 static struct uci_sectmap network_alias = {
 111         .type = "alias",
 112         .options = network_alias_options,
 113         .alloc_len = sizeof(struct uci_network),
 114         .init_section = network_init_alias,
 115         .add_section = network_add_alias,
 116         .n_options = ARRAY_SIZE(network_alias_options),
 117 };
 118
 119 static struct uci_sectmap *network_smap[] = {
 120         &network_interface,
 121         &network_alias,
 122 };
 123
 124 static struct uci_map network_map = {
 125         .sections = network_smap,
 126         .n_sections = ARRAY_SIZE(network_smap),
 127 };
 128
 129
 130 int main(int argc, char **argv)
 131 {
 132         struct uci_context *ctx;
 133         struct uci_package *pkg;
 134         struct list_head *p, *p2;
 135         struct uci_network *net;
 136         struct uci_alias *alias;
 137         int i;
 138
 139         INIT_LIST_HEAD(&ifs);
 140         ctx = uci_alloc_context();
 141         ucimap_init(&network_map);
 142
 143         uci_load(ctx, "network", &pkg);
 144
 145         ucimap_parse(&network_map, pkg);
 146
 147         list_for_each(p, &ifs) {
 148                 net = list_entry(p, struct uci_network, list);
 149                 printf("New network section '%s'\n"
 150                         "       type: %s\n"
 151                         "       ifname: %s\n"
 152                         "       ipaddr: %s\n"
 153                         "       test: %d\n"
 154                         "       enabled: %s\n",
 155                         net->name,
 156                         net->proto,
 157                         net->ifname,
 158                         net->ipaddr,
 159                         net->test,
 160                         (net->enabled ? "on" : "off"));
 161
 162                 for (i = 0; i < net->aliases->n_items; i++) {
 163                         alias = net->aliases->item[i].section;
 164                         printf("New alias: %s\n", alias->name);
 165                 }
 166 #if 0
 167                 net->ipaddr = "2.3.4.5";
 168                 ucimap_set_changed(net, &net->ipaddr);
 169                 ucimap_store_section(&network_map, pkg, net);
 170                 uci_save(ctx, pkg);
 171 #endif
 172         }
 173
 174
 175 done:
 176         ucimap_cleanup(&network_map);
 177         uci_free_context(ctx);
 178
 179         return 0;
 180 }