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 struct my_optmap {
  86         struct uci_optmap map;
  87         int test;
  88 };
  89
  90 static struct uci_sectmap network_interface;
  91 static struct uci_sectmap network_alias;
  92
  93 static struct my_optmap network_interface_options[] = {
  94         {
  95                 .map = {
  96                         UCIMAP_OPTION(struct uci_network, proto),
  97                         .type = UCIMAP_STRING,
  98                         .name = "proto",
  99                         .data.s.maxlen = 32,
 100                 }
 101         },
 102         {
 103                 .map = {
 104                         UCIMAP_OPTION(struct uci_network, ifname),
 105                         .type = UCIMAP_STRING,
 106                         .name = "ifname"
 107                 }
 108         },
 109         {
 110                 .map = {
 111                         UCIMAP_OPTION(struct uci_network, ipaddr),
 112                         .type = UCIMAP_STRING,
 113                         .name = "ipaddr",
 114                 }
 115         },
 116         {
 117                 .map = {
 118                         UCIMAP_OPTION(struct uci_network, enabled),
 119                         .type = UCIMAP_BOOL,
 120                         .name = "enabled",
 121                 }
 122         },
 123         {
 124                 .map = {
 125                         UCIMAP_OPTION(struct uci_network, test),
 126                         .type = UCIMAP_INT,
 127                         .name = "test"
 128                 }
 129         },
 130         {
 131                 .map = {
 132                         UCIMAP_OPTION(struct uci_network, aliases),
 133                         .type = UCIMAP_LIST | UCIMAP_SECTION,
 134                         .data.sm = &network_alias
 135                 }
 136         }
 137 };
 138
 139 static struct uci_sectmap network_interface = {
 140         .type = "interface",
 141         .alloc_len = sizeof(struct uci_network),
 142         .init = network_init_interface,
 143         .add = network_add_interface,
 144         .options = &network_interface_options[0].map,
 145         .n_options = ARRAY_SIZE(network_interface_options),
 146         .options_size = sizeof(struct my_optmap)
 147 };
 148
 149 static struct uci_optmap network_alias_options[] = {
 150         {
 151                 UCIMAP_OPTION(struct uci_alias, interface),
 152                 .type = UCIMAP_SECTION,
 153                 .data.sm = &network_interface
 154         }
 155 };
 156
 157 static struct uci_sectmap network_alias = {
 158         .type = "alias",
 159         .options = network_alias_options,
 160         .alloc_len = sizeof(struct uci_network),
 161         .init = network_init_alias,
 162         .add = network_add_alias,
 163         .n_options = ARRAY_SIZE(network_alias_options),
 164 };
 165
 166 static struct uci_sectmap *network_smap[] = {
 167         &network_interface,
 168         &network_alias,
 169 };
 170
 171 static struct uci_map network_map = {
 172         .sections = network_smap,
 173         .n_sections = ARRAY_SIZE(network_smap),
 174 };
 175
 176
 177 int main(int argc, char **argv)
 178 {
 179         struct uci_context *ctx;
 180         struct uci_package *pkg;
 181         struct list_head *p, *p2;
 182         struct uci_network *net;
 183         struct uci_alias *alias;
 184         int i;
 185
 186         INIT_LIST_HEAD(&ifs);
 187         ctx = uci_alloc_context();
 188         ucimap_init(&network_map);
 189
 190         uci_load(ctx, "network", &pkg);
 191
 192         ucimap_parse(&network_map, pkg);
 193
 194         list_for_each(p, &ifs) {
 195                 net = list_entry(p, struct uci_network, list);
 196                 printf("New network section '%s'\n"
 197                         "       type: %s\n"
 198                         "       ifname: %s\n"
 199                         "       ipaddr: %s\n"
 200                         "       test: %d\n"
 201                         "       enabled: %s\n",
 202                         net->name,
 203                         net->proto,
 204                         net->ifname,
 205                         net->ipaddr,
 206                         net->test,
 207                         (net->enabled ? "on" : "off"));
 208
 209                 for (i = 0; i < net->aliases->n_items; i++) {
 210                         alias = net->aliases->item[i].section;
 211                         printf("New alias: %s\n", alias->name);
 212                 }
 213 #if 0
 214                 net->ipaddr = "2.3.4.5";
 215                 ucimap_set_changed(net, &net->ipaddr);
 216                 ucimap_store_section(&network_map, pkg, net);
 217                 uci_save(ctx, pkg);
 218 #endif
 219         }
 220
 221
 222 done:
 223         ucimap_cleanup(&network_map);
 224         uci_free_context(ctx);
 225
 226         return 0;
 227 }