#include <stdlib.h>
#include <stdio.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
#include "netifd.h"
#include "interface.h"
+#include "interface-ip.h"
#include "proto.h"
static struct avl_tree handlers;
+unsigned int
+parse_netmask_string(const char *str, bool v6)
+{
+ struct in_addr addr;
+ unsigned int ret;
+ char *err = NULL;
+
+ if (!strchr(str, '.')) {
+ ret = strtoul(str, &err, 0);
+ if (err && *err)
+ goto error;
+
+ return ret;
+ }
+
+ if (v6)
+ goto error;
+
+ if (inet_aton(str, &addr) != 1)
+ goto error;
+
+ return 32 - fls(~(ntohl(addr.s_addr)));
+
+error:
+ return ~0;
+}
+
+static bool
+split_netmask(char *str, unsigned int *netmask, bool v6)
+{
+ char *delim = strchr(str, '/');
+
+ if (delim) {
+ *(delim++) = 0;
+
+ *netmask = parse_netmask_string(delim, v6);
+ }
+ return true;
+}
+
+static int
+parse_ip_and_netmask(int af, const char *str, void *addr, unsigned int *netmask)
+{
+ char *astr = alloca(strlen(str) + 1);
+
+ strcpy(astr, str);
+ if (!split_netmask(astr, netmask, af == AF_INET6))
+ return 0;
+
+ if (af == AF_INET6) {
+ if (*netmask > 128)
+ return 0;
+ } else {
+ if (*netmask > 32)
+ return 0;
+ }
+
+ return inet_pton(af, astr, addr);
+}
+
+struct device_addr *
+proto_parse_ip_addr_string(const char *str, bool v6, int mask)
+{
+ struct device_addr *addr;
+ int af = v6 ? AF_INET6 : AF_INET;
+
+ addr = calloc(1, sizeof(*addr));
+ addr->flags = v6 ? DEVADDR_INET6 : DEVADDR_INET4;
+ addr->mask = mask;
+ if (!parse_ip_and_netmask(af, str, &addr->addr, &addr->mask)) {
+ free(addr);
+ return NULL;
+ }
+ return addr;
+}
+
+
void add_proto_handler(struct proto_handler *p)
{
if (!handlers.comp)
static int
no_proto_handler(struct interface_proto_state *proto,
- enum interface_proto_cmd cmd, bool force)
+ enum interface_proto_cmd cmd, bool force)
{
return 0;
}
-static struct interface_proto_state *get_default_proto(void)
+static struct interface_proto_state *
+default_proto_attach(const struct proto_handler *h,
+ struct interface *iface, struct blob_attr *attr)
{
struct interface_proto_state *proto;
proto = calloc(1, sizeof(*proto));
proto->free = default_proto_free;
- proto->flags = PROTO_FLAG_IMMEDIATE;
+ proto->cb = no_proto_handler;
return proto;
}
-void proto_attach_interface(struct interface *iface, struct uci_section *s)
+static const struct proto_handler no_proto = {
+ .name = "none",
+ .flags = PROTO_FLAG_IMMEDIATE,
+ .attach = default_proto_attach,
+};
+
+static const struct proto_handler *
+get_proto_handler(const char *name)
{
- struct interface_proto_state *state = NULL;
- struct proto_handler *proto = NULL;
- const char *proto_name;
- const char *error = NULL;
+ struct proto_handler *proto;
- proto_name = uci_lookup_option_string(uci_ctx, s, "proto");
- if (!proto_name) {
- error = "NO_PROTO";
- goto error;
- }
+ if (!strcmp(name, "none"))
+ return &no_proto;
- if (!strcmp(proto_name, "none")) {
- state = get_default_proto();
- state->handler = no_proto_handler;
- goto out;
- }
+ if (!handlers.comp)
+ return NULL;
- if (handlers.comp)
- proto = avl_find_element(&handlers, proto_name, proto, avl);
+ return avl_find_element(&handlers, name, proto, avl);
+}
- if (!proto) {
- error = "INVALID_PROTO";
- goto error;
- }
+void
+proto_init_interface(struct interface *iface, struct blob_attr *attr)
+{
+ const struct proto_handler *proto = iface->proto_handler;
+ struct interface_proto_state *state = NULL;
- state = proto->attach(proto, iface, s);
+ if (!proto)
+ proto = &no_proto;
-error:
- if (error) {
- interface_add_error(iface, "proto", error, NULL, 0);
- state = get_default_proto();
- state->handler = invalid_proto_handler;
+ state = proto->attach(proto, iface, attr);
+ if (!state) {
+ state = no_proto.attach(&no_proto, iface, attr);
+ state->cb = invalid_proto_handler;
}
-out:
+ state->handler = proto;
interface_set_proto_state(iface, state);
}
+void
+proto_attach_interface(struct interface *iface, const char *proto_name)
+{
+ const struct proto_handler *proto = NULL;
+
+ if (!proto_name) {
+ interface_add_error(iface, "proto", "NO_PROTO", NULL, 0);
+ return;
+ }
+
+ proto = get_proto_handler(proto_name);
+ if (!proto) {
+ interface_add_error(iface, "proto", "INVALID_PROTO", NULL, 0);
+ proto = &no_proto;
+ }
-int interface_proto_event(struct interface_proto_state *proto,
- enum interface_proto_cmd cmd, bool force)
+ iface->proto_handler = proto;
+}
+
+int
+interface_proto_event(struct interface_proto_state *proto,
+ enum interface_proto_cmd cmd, bool force)
{
- enum interface_event ev;
+ enum interface_proto_event ev;
int ret;
- ret = proto->handler(proto, cmd, force);
- if (ret || !(proto->flags & PROTO_FLAG_IMMEDIATE))
+ ret = proto->cb(proto, cmd, force);
+ if (ret || !(proto->handler->flags & PROTO_FLAG_IMMEDIATE))
goto out;
switch(cmd) {
case PROTO_CMD_SETUP:
- ev = IFEV_UP;
+ ev = IFPEV_UP;
break;
case PROTO_CMD_TEARDOWN:
- ev = IFEV_DOWN;
+ ev = IFPEV_DOWN;
break;
default:
return -EINVAL;