X-Git-Url: https://git.archive.openwrt.org/?p=project%2Fnetifd.git;a=blobdiff_plain;f=device.h;h=d63ffe3b6ad68da0cca0c4de4947dcdc147d48a9;hp=3c9717b1f12efbfdb3fefc3b227ed28efdbc88ad;hb=134775b1f41fa19a816768268b9d0f8dad86bd90;hpb=a9030987750fefa9152539edeb44d5dd0a22cbcf;ds=sidebyside diff --git a/device.h b/device.h index 3c9717b..d63ffe3 100644 --- a/device.h +++ b/device.h @@ -1,18 +1,57 @@ +/* + * 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 __LL_H #define __LL_H #include +#include #include struct device; +struct device_user; struct device_hotplug_ops; typedef int (*device_state_cb)(struct device *, bool up); +enum { + DEV_ATTR_TYPE, + DEV_ATTR_IFNAME, + DEV_ATTR_MTU, + DEV_ATTR_MACADDR, + DEV_ATTR_TXQUEUELEN, + DEV_ATTR_ENABLED, + __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; - void (*dump_status)(struct device *, struct blob_buf *buf); + const struct uci_blob_param_list *config_params; + + struct device *(*create)(const char *name, struct blob_attr *attr); + void (*config_init)(struct device *); + enum dev_change_type (*reload)(struct device *, struct blob_attr *); + void (*dump_info)(struct device *, struct blob_buf *buf); + void (*dump_stats)(struct device *, struct blob_buf *buf); int (*check_state)(struct device *); void (*free)(struct device *); }; @@ -20,46 +59,51 @@ struct device_type { enum { DEV_OPT_MTU = (1 << 0), DEV_OPT_MACADDR = (1 << 1), - DEV_OPT_TXQUEUELEN = (1 << 2) + DEV_OPT_TXQUEUELEN = (1 << 2), }; -enum device_addr_flags { - /* address family for routes and addresses */ - DEVADDR_INET4 = (0 << 0), - DEVADDR_INET6 = (1 << 0), - DEVADDR_FAMILY = DEVADDR_INET4 | DEVADDR_INET6, - - /* device route (no gateway) */ - DEVADDR_DEVICE = (1 << 1), -}; +/* events broadcasted to all users of a device */ +enum device_event { + DEV_EVENT_ADD, + DEV_EVENT_REMOVE, -union if_addr { - struct in_addr in; - struct in6_addr in6; -}; + DEV_EVENT_UPDATE_IFNAME, -struct device_addr { - struct list_head list; - void *ctx; + DEV_EVENT_SETUP, + DEV_EVENT_TEARDOWN, + DEV_EVENT_UP, + DEV_EVENT_DOWN, - enum device_addr_flags flags; + DEV_EVENT_LINK_UP, + DEV_EVENT_LINK_DOWN, - unsigned int mask; - union if_addr addr; + __DEV_EVENT_MAX }; -struct device_route { - struct list_head list; - void *ctx; +/* + * device dependency with callbacks + */ +struct device_user { + struct safe_list list; + + bool claimed; + bool hotplug; + bool alias; - enum device_addr_flags flags; + uint8_t ev_idx[__DEV_EVENT_MAX]; + + struct device *dev; + void (*cb)(struct device_user *, enum device_event); +}; - unsigned int mask; - union if_addr addr; - union if_addr nexthop; +struct device_settings { + unsigned int flags; + unsigned int mtu; + unsigned int txqueuelen; + uint8_t macaddr[6]; }; -/* +/* * link layer device. typically represents a linux network device. * can be used to support VLANs as well */ @@ -67,83 +111,98 @@ struct device { const struct device_type *type; struct avl_node avl; - struct list_head users; + struct safe_list users; + struct safe_list aliases; char ifname[IFNAMSIZ + 1]; int ifindex; + struct blob_attr *config; + bool config_pending; + bool sys_present; bool present; int active; + bool external; + bool disabled; + bool deferred; + bool hidden; + + bool current_config; + bool default_config; + /* set interface up or down */ device_state_cb set_state; const struct device_hotplug_ops *hotplug_ops; - /* settings */ - unsigned int flags; - - unsigned int mtu; - unsigned int txqueuelen; - uint8_t macaddr[6]; + struct device_user parent; - uint32_t config_hash; -}; - -/* events broadcasted to all users of a device */ -enum device_event { - DEV_EVENT_ADD, - DEV_EVENT_REMOVE, - - DEV_EVENT_SETUP, - DEV_EVENT_TEARDOWN, - DEV_EVENT_UP, - DEV_EVENT_DOWN, - - DEV_EVENT_LINK_UP, - DEV_EVENT_LINK_DOWN, -}; - -/* - * device dependency with callbacks - */ -struct device_user { - struct list_head list; - - struct device *dev; - void (*cb)(struct device_user *, enum device_event); + struct device_settings orig_settings; + struct device_settings settings; }; struct device_hotplug_ops { + int (*prepare)(struct device *dev); int (*add)(struct device *main, struct device *member); int (*del)(struct device *main, struct device *member); }; -static inline void -device_free(struct device *dev) -{ - dev->type->free(dev); -} +extern const struct uci_blob_param_list device_attr_list; +extern const struct device_type simple_device_type; +extern const struct device_type bridge_device_type; +extern const struct device_type tunnel_device_type; +extern const struct device_type macvlan_device_type; -extern const struct config_param_list device_attr_list; +void device_lock(void); +void device_unlock(void); -struct device *device_create(struct blob_attr *attr, struct uci_section *s); +struct device *device_create(const char *name, const struct device_type *type, + struct blob_attr *config); +void device_init_settings(struct device *dev, struct blob_attr **tb); +void device_init_pending(void); -void init_virtual_device(struct device *dev, const struct device_type *type, const char *name); -int init_device(struct device *iface, const struct device_type *type, const char *ifname); -void cleanup_device(struct device *iface); -struct device *get_device(const char *name, bool create); -void add_device_user(struct device_user *dep, struct device *iface); +enum dev_change_type +device_set_config(struct device *dev, const struct device_type *type, + struct blob_attr *attr); + +void device_reset_config(void); +void device_reset_old(void); + +void device_init_virtual(struct device *dev, const struct device_type *type, const char *name); +int device_init(struct device *iface, const struct device_type *type, const char *ifname); +void device_cleanup(struct device *iface); +struct device *device_get(const char *name, int create); +void device_add_user(struct device_user *dep, struct device *iface); void device_remove_user(struct device_user *dep); +void device_broadcast_event(struct device *dev, enum device_event ev); -void set_device_present(struct device *dev, bool state); -int claim_device(struct device *dev); -void release_device(struct device *dev); -int check_device_state(struct device *dev); +void device_set_present(struct device *dev, bool state); +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_all(void); +void device_free(struct device *dev); +void device_free_unused(struct device *dev); struct device *get_vlan_device_chain(const char *ifname, bool create); -struct device *bridge_create(const char *name, struct uci_section *s); +void alias_notify_device(const char *name, struct device *dev); +struct device *device_alias_get(const char *name); + +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); +} #endif