/* * netifd - network interface daemon * Copyright (C) 2012 Felix Fietkau * * 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_DEVICE_H #define __NETIFD_DEVICE_H #include #include #include #include struct device; struct device_type; struct device_user; struct device_hotplug_ops; struct bridge_vlan; struct interface; typedef int (*device_state_cb)(struct device *, bool up); enum { DEV_ATTR_TYPE, DEV_ATTR_MTU, DEV_ATTR_MTU6, DEV_ATTR_MACADDR, DEV_ATTR_TXQUEUELEN, DEV_ATTR_ENABLED, DEV_ATTR_IPV6, DEV_ATTR_PROMISC, DEV_ATTR_RPFILTER, DEV_ATTR_ACCEPTLOCAL, DEV_ATTR_IGMPVERSION, DEV_ATTR_MLDVERSION, DEV_ATTR_NEIGHREACHABLETIME, DEV_ATTR_DADTRANSMITS, DEV_ATTR_MULTICAST_TO_UNICAST, DEV_ATTR_MULTICAST_ROUTER, DEV_ATTR_MULTICAST_FAST_LEAVE, DEV_ATTR_MULTICAST, DEV_ATTR_LEARNING, DEV_ATTR_UNICAST_FLOOD, DEV_ATTR_NEIGHGCSTALETIME, DEV_ATTR_SENDREDIRECTS, DEV_ATTR_NEIGHLOCKTIME, DEV_ATTR_ISOLATE, DEV_ATTR_IP6SEGMENTROUTING, DEV_ATTR_DROP_V4_UNICAST_IN_L2_MULTICAST, DEV_ATTR_DROP_V6_UNICAST_IN_L2_MULTICAST, DEV_ATTR_DROP_GRATUITOUS_ARP, DEV_ATTR_DROP_UNSOLICITED_NA, DEV_ATTR_ARP_ACCEPT, DEV_ATTR_AUTH, DEV_ATTR_AUTH_VLAN, DEV_ATTR_SPEED, DEV_ATTR_DUPLEX, DEV_ATTR_VLAN, DEV_ATTR_PAUSE, DEV_ATTR_ASYM_PAUSE, DEV_ATTR_RXPAUSE, DEV_ATTR_TXPAUSE, DEV_ATTR_AUTONEG, DEV_ATTR_GRO, DEV_ATTR_MASTER, DEV_ATTR_EEE, __DEV_ATTR_MAX, }; enum dev_change_type { DEV_CONFIG_NO_CHANGE, DEV_CONFIG_APPLIED, DEV_CONFIG_RESTART, DEV_CONFIG_RECREATE, }; struct device_type { struct list_head list; const char *name; bool bridge_capability; const char *name_prefix; const struct uci_blob_param_list *config_params; struct device *(*create)(const char *name, struct device_type *devtype, struct blob_attr *attr); void (*config_init)(struct device *); enum dev_change_type (*reload)(struct device *, struct blob_attr *); void (*vlan_update)(struct device *); void (*dump_info)(struct device *, struct blob_buf *buf); void (*dump_stats)(struct device *, struct blob_buf *buf); int (*check_state)(struct device *); void (*stp_init)(struct device *); void (*free)(struct device *); }; enum { DEV_OPT_MTU = (1ULL << 0), DEV_OPT_MACADDR = (1ULL << 1), DEV_OPT_TXQUEUELEN = (1ULL << 2), DEV_OPT_IPV6 = (1ULL << 3), DEV_OPT_PROMISC = (1ULL << 4), DEV_OPT_RPFILTER = (1ULL << 5), DEV_OPT_ACCEPTLOCAL = (1ULL << 6), DEV_OPT_IGMPVERSION = (1ULL << 7), DEV_OPT_MLDVERSION = (1ULL << 8), DEV_OPT_NEIGHREACHABLETIME = (1ULL << 9), DEV_OPT_DEFAULT_MACADDR = (1ULL << 10), DEV_OPT_AUTH = (1ULL << 11), DEV_OPT_MTU6 = (1ULL << 12), DEV_OPT_DADTRANSMITS = (1ULL << 13), DEV_OPT_MULTICAST_TO_UNICAST = (1ULL << 14), DEV_OPT_MULTICAST_ROUTER = (1ULL << 15), DEV_OPT_MULTICAST = (1ULL << 16), DEV_OPT_LEARNING = (1ULL << 17), DEV_OPT_UNICAST_FLOOD = (1ULL << 18), DEV_OPT_NEIGHGCSTALETIME = (1ULL << 19), DEV_OPT_MULTICAST_FAST_LEAVE = (1ULL << 20), DEV_OPT_SENDREDIRECTS = (1ULL << 21), DEV_OPT_NEIGHLOCKTIME = (1ULL << 22), DEV_OPT_ISOLATE = (1ULL << 23), DEV_OPT_IP6SEGMENTROUTING = (1ULL << 24), DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST = (1ULL << 25), DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST = (1ULL << 26), DEV_OPT_DROP_GRATUITOUS_ARP = (1ULL << 27), DEV_OPT_DROP_UNSOLICITED_NA = (1ULL << 28), DEV_OPT_ARP_ACCEPT = (1ULL << 29), DEV_OPT_SPEED = (1ULL << 30), DEV_OPT_DUPLEX = (1ULL << 31), DEV_OPT_PAUSE = (1ULL << 32), DEV_OPT_ASYM_PAUSE = (1ULL << 33), DEV_OPT_RXPAUSE = (1ULL << 34), DEV_OPT_TXPAUSE = (1ULL << 35), DEV_OPT_AUTONEG = (1ULL << 36), DEV_OPT_GRO = (1ULL << 37), DEV_OPT_MASTER = (1ULL << 38), DEV_OPT_EEE = (1ULL << 39), }; /* events broadcasted to all users of a device */ enum device_event { DEV_EVENT_ADD, DEV_EVENT_REMOVE, DEV_EVENT_UPDATE_IFNAME, DEV_EVENT_UPDATE_IFINDEX, DEV_EVENT_SETUP, DEV_EVENT_TEARDOWN, DEV_EVENT_UP, DEV_EVENT_DOWN, DEV_EVENT_AUTH_UP, DEV_EVENT_LINK_UP, DEV_EVENT_LINK_DOWN, /* Topology changed (i.e. bridge member added) */ DEV_EVENT_TOPO_CHANGE, __DEV_EVENT_MAX }; /* * device dependency with callbacks */ struct device_user { struct safe_list list; bool claimed; bool hotplug; bool alias; uint8_t ev_idx[__DEV_EVENT_MAX]; struct device *dev; void (*cb)(struct device_user *, enum device_event); }; struct device_settings { uint64_t flags; uint64_t valid_flags; unsigned int mtu; unsigned int mtu6; unsigned int txqueuelen; uint8_t macaddr[6]; bool ipv6; bool promisc; unsigned int rpfilter; bool acceptlocal; unsigned int igmpversion; unsigned int mldversion; unsigned int neigh4reachabletime; unsigned int neigh6reachabletime; unsigned int neigh4gcstaletime; unsigned int neigh6gcstaletime; int neigh4locktime; unsigned int dadtransmits; bool multicast_to_unicast; unsigned int multicast_router; bool multicast_fast_leave; bool multicast; bool learning; bool unicast_flood; bool sendredirects; bool ip6segmentrouting; bool isolate; bool drop_v4_unicast_in_l2_multicast; bool drop_v6_unicast_in_l2_multicast; bool drop_gratuitous_arp; bool drop_unsolicited_na; bool arp_accept; bool auth; unsigned int speed; bool duplex; bool pause; bool asym_pause; bool rxpause; bool txpause; bool autoneg; bool gro; int master_ifindex; bool eee; }; struct device_vlan_range { uint16_t start, end; }; /* * link layer device. typically represents a linux network device. * can be used to support VLANs as well */ struct device { struct device_type *type; struct avl_node avl; struct safe_list users; struct safe_list aliases; struct vlist_tree vlans; struct kvlist vlan_aliases; struct blob_attr *config_auth_vlans; struct blob_attr *auth_vlans; char ifname[IFNAMSIZ]; int ifindex; struct blob_attr *config; bool config_pending; bool sys_present; /* DEV_EVENT_ADD */ bool present; /* DEV_EVENT_UP */ int active; /* DEV_EVENT_LINK_UP */ bool link_active; bool auth_status; bool external; bool disabled; bool deferred; bool hidden; bool current_config; bool iface_config; bool default_config; bool wireless; bool wireless_ap; bool wireless_proxyarp; bool wireless_isolate; bool bpdu_filter; struct interface *config_iface; struct device_vlan_range *extra_vlan; int n_extra_vlan; /* set interface up or down */ device_state_cb set_state; const struct device_hotplug_ops *hotplug_ops; struct device_user parent; struct device_settings orig_settings; struct device_settings settings; }; struct device_hotplug_ops { int (*prepare)(struct device *dev, struct device **bridge_dev); int (*add)(struct device *main, struct device *member, struct blob_attr *vlan); int (*del)(struct device *main, struct device *member, struct blob_attr *vlan); }; enum bridge_vlan_flags { BRVLAN_F_SELF = (1 << 0), BRVLAN_F_PVID = (1 << 1), BRVLAN_F_UNTAGGED = (1 << 2), }; struct bridge_vlan_port { const char *ifname; uint16_t flags; int8_t check; }; struct bridge_vlan_hotplug_port { struct list_head list; struct bridge_vlan_port port; }; struct bridge_vlan { struct vlist_node node; struct bridge_vlan_port *ports; int n_ports; struct list_head hotplug_ports; uint16_t vid; bool local; bool pending; }; extern const struct uci_blob_param_list device_attr_list; extern struct device_type simple_device_type; extern struct device_type tunnel_device_type; void device_vlan_update(bool done); void device_stp_init(void); int device_type_add(struct device_type *devtype); struct device_type *device_type_get(const char *tname); struct device *device_create(const char *name, struct device_type *type, struct blob_attr *config); void device_merge_settings(struct device *dev, struct device_settings *n); void device_init_settings(struct device *dev, struct blob_attr **tb); void device_init_pending(void); enum dev_change_type device_apply_config(struct device *dev, struct device_type *type, struct blob_attr *config); void device_reset_config(void); void device_reset_old(void); int device_init_virtual(struct device *dev, struct device_type *type, const char *name); int device_init(struct device *dev, struct device_type *type, const char *ifname); void device_cleanup(struct device *dev); struct device *device_find(const char *name); struct device *__device_get(const char *name, int create, bool check_vlan); static inline struct device *device_get(const char *name, int create) { return __device_get(name, create, true); } void device_add_user(struct device_user *dep, struct device *dev); void device_remove_user(struct device_user *dep); void device_broadcast_event(struct device *dev, enum device_event ev); void device_set_present(struct device *dev, bool state); void device_set_link(struct device *dev, bool state); void device_set_ifindex(struct device *dev, int ifindex); int device_set_ifname(struct device *dev, const char *name); void device_refresh_present(struct device *dev); int device_claim(struct device_user *dep); void device_release(struct device_user *dep); int device_check_state(struct device *dev); void device_dump_status(struct blob_buf *b, struct device *dev); void device_free_unused(void); struct device *get_vlan_device_chain(const char *ifname, int create); void alias_notify_device(const char *name, struct device *dev); struct device *device_alias_get(const char *name); void device_set_auth_status(struct device *dev, bool value, struct blob_attr *vlans); static inline void device_set_deferred(struct device *dev, bool value) { dev->deferred = value; device_refresh_present(dev); } static inline void device_set_disabled(struct device *dev, bool value) { dev->disabled = value; device_refresh_present(dev); } static inline bool device_link_active(struct device *dev) { if (dev->settings.auth && !dev->auth_status) return false; return dev->link_active; } bool device_check_ip6segmentrouting(void); void device_hotplug_event(const char *name, bool add); #endif