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#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <uci.h>
#include "netifd.h"
#include "interface.h"
#include "proto.h"
#include "config.h"
bool config_init = false;
static struct uci_context *uci_ctx;
static struct uci_package *uci_network;
static struct blob_buf b;
static unsigned int config_version = 1;
static void uci_attr_to_blob(struct blob_buf *b, const char *str,
const char *name, enum blobmsg_type type)
{
char *err;
int intval;
switch (type) {
case BLOBMSG_TYPE_STRING:
blobmsg_add_string(b, name, str);
break;
case BLOBMSG_TYPE_BOOL:
if (!strcmp(str, "true") || !strcmp(str, "1"))
intval = 1;
else if (!strcmp(str, "false") || !strcmp(str, "0"))
intval = 0;
else
return;
blobmsg_add_u8(b, name, intval);
break;
case BLOBMSG_TYPE_INT32:
intval = strtol(str, &err, 0);
if (*err)
return;
blobmsg_add_u32(b, name, intval);
break;
default:
break;
}
}
static void uci_array_to_blob(struct blob_buf *b, struct uci_option *o,
enum blobmsg_type type)
{
struct uci_element *e;
char *str, *next, *word;
if (o->type == UCI_TYPE_LIST) {
uci_foreach_element(&o->v.list, e) {
uci_attr_to_blob(b, e->name, NULL, type);
}
return;
}
str = strdup(o->v.string);
next = str;
while ((word = strsep(&next, " \t")) != NULL) {
if (!*word)
continue;
uci_attr_to_blob(b, word, NULL, type);
}
free(str);
}
static void __uci_to_blob(struct blob_buf *b, struct uci_section *s,
const struct config_param_list *p)
{
const struct blobmsg_policy *attr = NULL;
struct uci_element *e;
struct uci_option *o;
void *array;
int i;
uci_foreach_element(&s->options, e) {
for (i = 0; i < p->n_params; i++) {
attr = &p->params[i];
if (!strcmp(attr->name, e->name))
break;
}
if (i == p->n_params)
continue;
o = uci_to_option(e);
if (attr->type == BLOBMSG_TYPE_ARRAY) {
if (!p->info)
continue;
array = blobmsg_open_array(b, attr->name);
uci_array_to_blob(b, o, p->info[i].type);
blobmsg_close_array(b, array);
continue;
}
if (o->type == UCI_TYPE_LIST)
continue;
uci_attr_to_blob(b, o->v.string, attr->name, attr->type);
}
}
static void uci_to_blob(struct blob_buf *b, struct uci_section *s,
const struct config_param_list *p)
{
int i;
__uci_to_blob(b, s, p);
for (i = 0; i < p->n_next; i++)
uci_to_blob(b, s, p->next[i]);
}
static int
config_parse_bridge_interface(struct uci_section *s)
{
char *name;
name = alloca(strlen(s->e.name) + 4);
sprintf(name, "br-%s", s->e.name);
blobmsg_add_string(&b, "name", name);
uci_to_blob(&b, s, bridge_device_type.config_params);
if (!bridge_device_type.create(b.head)) {
DPRINTF("Failed to create bridge for interface '%s'\n", s->e.name);
return -EINVAL;
}
blob_buf_init(&b, 0);
blobmsg_add_string(&b, "ifname", name);
return 0;
}
void
config_set_state(struct config_state *state, const struct blob_attr *attr)
{
state->data = malloc(blob_pad_len(attr));
if (!state->data)
return;
memcpy(state->data, attr, blob_pad_len(attr));
}
static void
config_parse_interface(struct uci_section *s)
{
struct interface *iface;
const char *type;
DPRINTF("Create interface '%s'\n", s->e.name);
blob_buf_init(&b, 0);
type = uci_lookup_option_string(uci_ctx, s, "type");
if (type && !strcmp(type, "bridge"))
if (config_parse_bridge_interface(s))
return;
uci_to_blob(&b, s, &interface_attr_list);
iface = interface_alloc(s->e.name, b.head);
if (!iface)
return;
blob_buf_init(&b, 0);
if (iface->proto_handler && iface->proto_handler->config_params)
uci_to_blob(&b, s, iface->proto_handler->config_params);
proto_init_interface(iface, b.head);
iface->config.version = config_version;
}
static void
config_init_devices(void)
{
struct uci_element *e;
uci_foreach_element(&uci_network->sections, e) {
struct uci_section *s = uci_to_section(e);
const struct device_type *devtype;
const char *type;
if (strcmp(s->type, "device") != 0)
continue;
blob_buf_init(&b, 0);
type = uci_lookup_option_string(uci_ctx, s, "type");
if (type && !strcmp(type, "bridge"))
devtype = &bridge_device_type;
else
devtype = &simple_device_type;
uci_to_blob(&b, s, devtype->config_params);
devtype->create(b.head);
}
}
void
config_init_interfaces(const char *name)
{
struct uci_context *ctx;
struct uci_package *p = NULL;
struct uci_element *e;
ctx = uci_alloc_context();
uci_ctx = ctx;
uci_set_confdir(ctx, "./config");
if (uci_load(ctx, "network", &p)) {
fprintf(stderr, "Failed to load network config\n");
return;
}
uci_network = p;
config_init = true;
config_init_devices();
uci_foreach_element(&p->sections, e) {
struct uci_section *s = uci_to_section(e);
if (name && strcmp(s->e.name, name) != 0)
continue;
if (!strcmp(s->type, "interface"))
config_parse_interface(s);
}
device_free_unused(NULL);
config_init = false;
interface_start_pending();
}
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