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/*
* netifd - network interface daemon
* Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __NETIFD_INTERFACE_H
#define __NETIFD_INTERFACE_H
#include "device.h"
#include "config.h"
struct interface;
struct interface_proto_state;
enum interface_event {
IFEV_DOWN,
IFEV_UP,
IFEV_UP_FAILED,
IFEV_UPDATE,
IFEV_FREE,
IFEV_RELOAD,
IFEV_LINK_UP,
/* send when a new interface created. This is before proto handlers has been attached. */
IFEV_CREATE,
};
enum interface_state {
IFS_SETUP,
IFS_UP,
IFS_TEARDOWN,
IFS_DOWN,
};
enum interface_config_state {
IFC_NORMAL,
IFC_RELOAD,
IFC_REMOVE
};
enum interface_id_selection_type {
IFID_FIXED,
IFID_RANDOM,
IFID_EUI64
};
enum interface_update_flags {
IUF_ADDRESS = (1 << 0),
IUF_ROUTE = (1 << 1),
IUF_PREFIX = (1 << 2),
IUF_DATA = (1 << 3),
};
struct interface_error {
struct list_head list;
const char *subsystem;
const char *code;
const char *data[];
};
struct interface_user {
struct list_head list;
struct interface *iface;
void (*cb)(struct interface_user *dep, struct interface *iface, enum interface_event ev);
};
struct interface_ip_settings {
struct interface *iface;
bool enabled;
bool no_defaultroute;
bool no_dns;
bool no_delegation;
struct vlist_tree addr;
struct vlist_tree route;
struct vlist_tree prefix;
struct vlist_tree neighbor;
struct vlist_simple_tree dns_servers;
struct vlist_simple_tree dns_search;
};
struct interface_data {
struct avl_node node;
struct blob_attr data[];
};
struct interface_assignment_class {
struct list_head head;
char name[];
};
/*
* interface configuration
*/
struct interface {
struct vlist_node node;
struct list_head hotplug_list;
enum interface_event hotplug_ev;
const char *name;
const char *ifname;
const char *jail;
int netns_fd;
bool available;
bool autostart;
bool config_autostart;
bool device_config;
bool enabled;
bool link_state;
bool force_link;
bool dynamic;
bool policy_rules_set;
bool link_up_event;
time_t start_time;
enum interface_state state;
enum interface_config_state config_state;
enum interface_update_flags updated;
struct list_head users;
/* for alias interface */
const char *parent_ifname;
struct interface_user parent_iface;
/* main interface that the interface is bound to */
struct device_user main_dev;
struct device_user ext_dev;
/* interface that layer 3 communication will go through */
struct device_user l3_dev;
struct blob_attr *config;
/* primary protocol state */
const struct proto_handler *proto_handler;
struct interface_proto_state *proto;
struct interface_ip_settings proto_ip;
struct interface_ip_settings config_ip;
struct vlist_tree host_routes;
struct vlist_tree host_neighbors;
int metric;
int dns_metric;
unsigned int ip4table;
unsigned int ip6table;
/* IPv6 assignment parameters */
enum interface_id_selection_type assignment_iface_id_selection;
struct in6_addr assignment_fixed_iface_id;
uint8_t assignment_length;
int32_t assignment_hint;
struct list_head assignment_classes;
int assignment_weight;
/* errors/warnings while trying to bring up the interface */
struct list_head errors;
/* extra data provided by protocol handlers or modules */
struct avl_tree data;
struct uloop_timeout remove_timer;
struct ubus_object ubus;
};
extern struct vlist_tree interfaces;
extern const struct uci_blob_param_list interface_attr_list;
struct interface *interface_alloc(const char *name, struct blob_attr *config, bool dynamic);
bool interface_add(struct interface *iface, struct blob_attr *config);
bool interface_add_alias(struct interface *iface, struct blob_attr *config);
void interface_set_proto_state(struct interface *iface, struct interface_proto_state *state);
void interface_set_available(struct interface *iface, bool new_state);
void interface_set_up(struct interface *iface);
void interface_set_down(struct interface *iface);
int interface_renew(struct interface *iface);
void interface_set_l3_dev(struct interface *iface, struct device *dev);
void interface_add_user(struct interface_user *dep, struct interface *iface);
void interface_remove_user(struct interface_user *dep);
int interface_handle_link(struct interface *iface, const char *name, bool add, bool link_ext);
void interface_add_error(struct interface *iface, const char *subsystem,
const char *code, const char **data, int n_data);
int interface_add_data(struct interface *iface, const struct blob_attr *data);
int interface_parse_data(struct interface *iface, const struct blob_attr *attr);
void interface_update_start(struct interface *iface, const bool keep_old);
void interface_update_complete(struct interface *iface);
void interface_start_pending(void);
void interface_start_jail(const char *jail, const pid_t netns_pid);
void interface_stop_jail(const char *jail, const pid_t netns_pid);
#endif
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