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net: Add network address information to interface

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Change-Id: I14b9257362a1e6f4144900c7acde6a125ecf6a02
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2016-05-03 08:33:34 +03:00
commit ac479e19b8
4 changed files with 193 additions and 114 deletions
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118
include/net/net_if.h
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@ -14,118 +14,10 @@
* limitations under the License.
*/
/**
* @file
* @brief Public API for network interface
*/
#ifndef __NET_IF_H__
#define __NET_IF_H__
#include <device.h>
#include <net/net_linkaddr.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Network Interface structure
*
* Used to handle a network interface on top of a device driver instance.
* There can be many net_if instance against the same device.
*
* Such interface is mainly to be used by the link layer, but is also tight
* to a network context: it then makes the relation with a network context
* and the network device.
*
* Because of the strong relationship between a device driver and such
* network interface, each net_if should be instanciated by
*/
struct net_if {
/** The actualy device driver instance the net_if is related to */
struct device *dev;
/** The harware link address */
struct net_linkaddr link_addr;
/** The hardware MTU */
uint16_t mtu;
};
/**
* @brief Get an network interface's device
* @param iface Pointer to a network interface structure
* @return a pointer on the device driver instance
*/
static inline struct device *net_if_get_device(struct net_if *iface)
{
return iface->dev;
}
/**
* @brief Get an network interface's link address
* @param iface Pointer to a network interface structure
* @return a pointer on the network link address
*/
static inline struct net_linkaddr *net_if_get_link_addr(struct net_if *iface)
{
return &iface->link_addr;
}
/**
* @brief Set a network interfac's link address
* @param iface Pointer to a network interface structure
* @param addr a pointer on a uint8_t buffer representing the address
* @param len length of the address buffer
*/
static inline void net_if_set_link_addr(struct net_if *iface,
uint8_t *addr, uint8_t len)
{
iface->link_addr.addr = addr;
iface->link_addr.len = len;
}
/**
* @brief Get an network interface's MTU
* @param iface Pointer to a network interface structure
* @return the MTU
*/
static inline uint16_t net_if_get_mtu(struct net_if *iface)
{
return iface->mtu;
}
struct net_if_api {
void (*init)(struct net_if *iface);
};
#ifdef CONFIG_NET_YAIP
#define NET_IF_INIT(dev_name, sfx, _mtu) \
static struct net_if (__net_if_ ##dev_name _##sfx) __used \
__attribute__((__section__(".net_if.data"))) = { \
.dev = &(__device_##dev_name), \
.mtu = _mtu, \
}
#if defined(CONFIG_NET_UIP)
#include <net/uip/net_if.h>
#elif defined(CONFIG_NET_YAIP)
#include <net/yaip/net_if.h>
#else
#define NET_IF_INIT(...)
#endif /* CONFIG_NET_YAIP */
/* Network device intialization macro */
#define NET_DEVICE_INIT(dev_name, drv_name, init_fn, \
data, cfg_info, prio, api, mtu) \
DEVICE_AND_API_INIT(dev_name, drv_name, init_fn, data, \
cfg_info, NANOKERNEL, prio, api); \
NET_IF_INIT(dev_name, 0, mtu)
#ifdef __cplusplus
}
#error "Either uIP or YAIP needs to be selected."
#endif
#endif /* __NET_IFACE_H__ */