196 lines
8.7 KiB
C
196 lines
8.7 KiB
C
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/*
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* Copyright (c) 2006-2019, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2019-03-18 ChenYong First version
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*/
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#ifndef __NETDEV_H__
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#define __NETDEV_H__
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#include <rtthread.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* the maximum of all used hardware address lengths */
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#ifndef NETDEV_HWADDR_MAX_LEN
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#define NETDEV_HWADDR_MAX_LEN 8U
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#endif
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/* the maximum of dns server number supported */
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#ifndef NETDEV_DNS_SERVERS_NUM
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#define NETDEV_DNS_SERVERS_NUM 2U
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#endif
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#if NETDEV_IPV6
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/* the maximum of dns server number supported */
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#ifndef NETDEV_IPV6_NUM_ADDRESSES
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#define NETDEV_IPV6_NUM_ADDRESSES 3U
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#endif
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#endif /* NETDEV_IPV6 */
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/* whether the network interface device is 'up' (set by the network interface driver or application) */
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#define NETDEV_FLAG_UP 0x01U
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/* if set, the network interface device has broadcast capability, only supported in the 'lwIP' stack */
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#define NETDEV_FLAG_BROADCAST 0x02U
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/* if set, the network interface device has an active link (set by the network interface driver) */
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#define NETDEV_FLAG_LINK_UP 0x04U
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/* if set, the network interface device is an ethernet device using ARP, only supported in the 'lwIP' stack */
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#define NETDEV_FLAG_ETHARP 0x08U
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/* if set, the network interface device is an ethernet device, only supported in the 'lwIP' stack */
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#define NETDEV_FLAG_ETHERNET 0x10U
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/* if set, the network interface device has IGMP capability, only supported in the 'lwIP' stack */
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#define NETDEV_FLAG_IGMP 0x20U
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/* if set, the network interface device has MLD6 capability, only supported in the 'lwIP' stack */
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#define NETDEV_FLAG_MLD6 0x40U
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/* if set, the network interface device connected to internet successfully (set by the network interface driver) */
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#define NETDEV_FLAG_INTERNET_UP 0x80U
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/* if set, the network interface device has DHCP capability (set by the network interface device driver or application) */
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#define NETDEV_FLAG_DHCP 0x100U
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enum netdev_cb_type
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{
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NETDEV_CB_ADDR_IP, /* IP address */
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NETDEV_CB_ADDR_NETMASK, /* subnet mask */
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NETDEV_CB_ADDR_GATEWAY, /* netmask */
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NETDEV_CB_ADDR_DNS_SERVER, /* dns server */
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NETDEV_CB_STATUS_UP, /* changed to 'up' */
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NETDEV_CB_STATUS_DOWN, /* changed to 'down' */
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NETDEV_CB_STATUS_LINK_UP, /* changed to 'link up' */
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NETDEV_CB_STATUS_LINK_DOWN, /* changed to 'link down' */
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NETDEV_CB_STATUS_INTERNET_UP, /* changed to 'internet up' */
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NETDEV_CB_STATUS_INTERNET_DOWN, /* changed to 'internet down' */
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NETDEV_CB_STATUS_DHCP_ENABLE, /* enable DHCP capability */
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NETDEV_CB_STATUS_DHCP_DISABLE, /* disable DHCP capability */
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};
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struct netdev;
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/* function prototype for network interface device status or address change callback functions */
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typedef void (*netdev_callback_fn )(struct netdev *netdev, enum netdev_cb_type type);
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struct netdev_ops;
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/* network interface device object */
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struct netdev
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{
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rt_slist_t list;
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char name[RT_NAME_MAX]; /* network interface device name */
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ip_addr_t ip_addr; /* IP address */
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ip_addr_t netmask; /* subnet mask */
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ip_addr_t gw; /* gateway */
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#if NETDEV_IPV6
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ip_addr_t ip6_addr[NETDEV_IPV6_NUM_ADDRESSES]; /* array of IPv6 addresses */
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#endif /* NETDEV_IPV6 */
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ip_addr_t dns_servers[NETDEV_DNS_SERVERS_NUM]; /* DNS server */
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uint8_t hwaddr_len; /* hardware address length */
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uint8_t hwaddr[NETDEV_HWADDR_MAX_LEN]; /* hardware address */
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uint16_t flags; /* network interface device status flag */
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uint16_t mtu; /* maximum transfer unit (in bytes) */
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const struct netdev_ops *ops; /* network interface device operations */
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netdev_callback_fn status_callback; /* network interface device flags change callback */
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netdev_callback_fn addr_callback; /* network interface device address information change callback */
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#ifdef RT_USING_SAL
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void *sal_user_data; /* user-specific data for SAL */
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#endif /* RT_USING_SAL */
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void *user_data; /* user-specific data */
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};
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/* The list of network interface device */
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extern struct netdev *netdev_list;
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/* The default network interface device */
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extern struct netdev *netdev_default;
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/* The network interface device ping response object */
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struct netdev_ping_resp
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{
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ip_addr_t ip_addr; /* response IP address */
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uint16_t data_len; /* response data length */
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uint16_t ttl; /* time to live */
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uint32_t ticks; /* response time, unit tick */
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void *user_data; /* user-specific data */
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};
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/* The network interface device operations */
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struct netdev_ops
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{
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/* set network interface device hardware status operations */
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int (*set_up)(struct netdev *netdev);
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int (*set_down)(struct netdev *netdev);
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/* set network interface device address information operations */
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int (*set_addr_info)(struct netdev *netdev, ip_addr_t *ip_addr, ip_addr_t *netmask, ip_addr_t *gw);
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int (*set_dns_server)(struct netdev *netdev, uint8_t dns_num, ip_addr_t *dns_server);
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int (*set_dhcp)(struct netdev *netdev, rt_bool_t is_enabled);
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#ifdef RT_USING_FINSH
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/* set network interface device common network interface device operations */
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int (*ping)(struct netdev *netdev, const char *host, size_t data_len, uint32_t timeout, struct netdev_ping_resp *ping_resp);
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void (*netstat)(struct netdev *netdev);
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#endif
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/* set default network interface device in current network stack*/
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int (*set_default)(struct netdev *netdev);
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};
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/* The network interface device registered and unregistered*/
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int netdev_register(struct netdev *netdev, const char *name, void *user_data);
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int netdev_unregister(struct netdev *netdev);
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/* Get network interface device object */
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struct netdev *netdev_get_first_by_flags(uint16_t flags);
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struct netdev *netdev_get_by_ipaddr(ip_addr_t *ip_addr);
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struct netdev *netdev_get_by_name(const char *name);
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#ifdef RT_USING_SAL
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struct netdev *netdev_get_by_family(int family);
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int netdev_family_get(struct netdev *netdev);
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#endif /* RT_USING_SAL */
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/* Set default network interface device in list */
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void netdev_set_default(struct netdev *netdev);
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/* Set network interface device status */
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int netdev_set_up(struct netdev *netdev);
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int netdev_set_down(struct netdev *netdev);
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int netdev_dhcp_enabled(struct netdev *netdev, rt_bool_t is_enabled);
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/* Get network interface device status */
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#define netdev_is_up(netdev) (((netdev)->flags & NETDEV_FLAG_UP) ? (uint8_t)1 : (uint8_t)0)
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#define netdev_is_link_up(netdev) (((netdev)->flags & NETDEV_FLAG_LINK_UP) ? (uint8_t)1 : (uint8_t)0)
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#define netdev_is_internet_up(netdev) (((netdev)->flags & NETDEV_FLAG_INTERNET_UP) ? (uint8_t)1 : (uint8_t)0)
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#define netdev_is_dhcp_enabled(netdev) (((netdev)->flags & NETDEV_FLAG_DHCP) ? (uint8_t)1 : (uint8_t)0)
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/* Set network interface device address */
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int netdev_set_ipaddr(struct netdev *netdev, const ip_addr_t *ipaddr);
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int netdev_set_netmask(struct netdev *netdev, const ip_addr_t *netmask);
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int netdev_set_gw(struct netdev *netdev, const ip_addr_t *gw);
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int netdev_set_dns_server(struct netdev *netdev, uint8_t dns_num, const ip_addr_t *dns_server);
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/* Set network interface device callback, it can be called when the status or address changed */
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void netdev_set_status_callback(struct netdev *netdev, netdev_callback_fn status_callback);
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void netdev_set_addr_callback(struct netdev *netdev, netdev_callback_fn addr_callback);
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/* Set network interface device status and address, this function can only be called in the network interface device driver */
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void netdev_low_level_set_ipaddr(struct netdev *netdev, const ip_addr_t *ipaddr);
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void netdev_low_level_set_netmask(struct netdev *netdev, const ip_addr_t *netmask);
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void netdev_low_level_set_gw(struct netdev *netdev, const ip_addr_t *gw);
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void netdev_low_level_set_dns_server(struct netdev *netdev, uint8_t dns_num, const ip_addr_t *dns_server);
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void netdev_low_level_set_status(struct netdev *netdev, rt_bool_t is_up);
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void netdev_low_level_set_link_status(struct netdev *netdev, rt_bool_t is_up);
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void netdev_low_level_set_dhcp_status(struct netdev *netdev, rt_bool_t is_enable);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __NETDEV_H__ */
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