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#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/ethernet.h>
#include "netifd.h"
#include "interface.h"
struct uci_context *uci_ctx;
struct uci_package *uci_network;
bool config_init = false;
enum {
SIF_TYPE,
SIF_IFNAME,
__SIF_MAX,
};
static const struct uci_parse_option if_opts[__SIF_MAX] = {
[SIF_TYPE] = { "type", UCI_TYPE_STRING },
[SIF_IFNAME] = { "ifname", UCI_TYPE_STRING },
};
static void
config_parse_interface(struct uci_section *s)
{
struct uci_option *opts[__SIF_MAX];
struct interface *iface;
struct device *dev;
const char *type;
DPRINTF("Create interface '%s'\n", s->e.name);
iface = alloc_interface(s->e.name);
if (!iface)
return;
uci_parse_section(s, if_opts, __SIF_MAX, opts);
if (opts[SIF_TYPE]) {
type = opts[SIF_TYPE]->v.string;
if (!strcmp(type, "bridge")) {
interface_attach_bridge(iface, s);
return;
}
}
if (opts[SIF_IFNAME]) {
dev = get_device(opts[SIF_IFNAME]->v.string, true);
if (!dev)
return;
add_device_user(&iface->main_dev, dev);
}
}
enum {
SDEV_NAME,
SDEV_TYPE,
SDEV_MTU,
SDEV_MACADDR,
SDEV_TXQUEUELEN,
__SDEV_MAX,
};
static const struct uci_parse_option dev_opts[__SDEV_MAX] = {
[SDEV_NAME] = { "name", UCI_TYPE_STRING },
[SDEV_TYPE] = { "type", UCI_TYPE_STRING },
[SDEV_MTU] = { "mtu", UCI_TYPE_STRING },
[SDEV_MACADDR] = { "macaddr", UCI_TYPE_STRING },
[SDEV_TXQUEUELEN] = { "txqueuelen", UCI_TYPE_STRING },
};
static bool
add_int_option(struct uci_option *o, unsigned int *dest)
{
char *error = NULL;
int val;
if (!o)
return false;
val = strtoul(o->v.string, &error, 0);
if (error && *error)
return false;
*dest = val;
return true;
}
static void
config_init_device_settings(struct device *dev, struct uci_option **opts)
{
struct ether_addr *ea;
dev->flags = 0;
if (add_int_option(opts[SDEV_MTU], &dev->mtu))
dev->flags |= DEV_OPT_MTU;
if (add_int_option(opts[SDEV_TXQUEUELEN], &dev->txqueuelen))
dev->flags |= DEV_OPT_TXQUEUELEN;
if (opts[SDEV_MACADDR]) {
ea = ether_aton(opts[SDEV_MACADDR]->v.string);
if (ea) {
memcpy(dev->macaddr, ea, sizeof(dev->macaddr));
dev->flags |= DEV_OPT_MACADDR;
}
}
}
void
config_init_devices(void)
{
struct uci_element *e;
struct device *dev;
struct uci_option *opts[__SDEV_MAX];
uci_foreach_element(&uci_network->sections, e) {
struct uci_section *s = uci_to_section(e);
if (strcmp(s->type, "device") != 0)
continue;
uci_parse_section(s, dev_opts, __SDEV_MAX, opts);
if (!opts[SDEV_NAME])
continue;
dev = NULL;
if (opts[SDEV_TYPE]) {
const char *type = opts[SDEV_TYPE]->v.string;
if (!strcmp(type, "bridge"))
dev = bridge_create(opts[SDEV_NAME]->v.string, s);
} else {
dev = get_device(opts[SDEV_NAME]->v.string, true);
}
if (!dev)
continue;
config_init_device_settings(dev, opts);
dev->config_hash = uci_hash_options(opts, __SDEV_MAX);
}
}
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);
}
cleanup_devices();
config_init = false;
start_pending_interfaces();
}
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