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#ifndef MINIX_NET_LWIP_IFDEV_H
#define MINIX_NET_LWIP_IFDEV_H
#include <net/if.h>
#include <net/if_types.h>
#include <netinet6/in6_var.h>
#include <netinet6/nd6.h>
/*
* NetBSD makes setting a hardware address through ifconfig(8) a whole lot
* harder than it needs to be, namely by keeping a list of possible hardware
* addresses and marking one of them as active. For us, that level of extra
* flexibility is completely useless. In order to shield individual interface
* modules from having to deal with the rather extended interface for the list
* management, we maintain the list in ifdev and simply use a iop_set_hwaddr()
* call to the modules when the active address changes. This setting is the
* maximum number of hardware addresses in the list maintained by ifdev. It
* should be at least 2, or changing hardware addresses will not be possible.
*/
#define IFDEV_NUM_HWADDRS 3
struct ifdev;
struct bpfdev_link;
struct sockaddr_dlx;
/* Interface operations table. */
struct ifdev_ops {
err_t (* iop_init)(struct ifdev * ifdev, struct netif * netif);
err_t (* iop_input)(struct pbuf * pbuf, struct netif * netif);
err_t (* iop_output)(struct ifdev * ifdev, struct pbuf * pbuf,
struct netif * netif);
err_t (* iop_output_v4)(struct netif * netif, struct pbuf * pbuf,
const ip4_addr_t * ipaddr);
err_t (* iop_output_v6)(struct netif * netif, struct pbuf * pbuf,
const ip6_addr_t * ipaddr);
void (* iop_hdrcmplt)(struct ifdev * ifdev, struct pbuf * pbuf);
void (* iop_poll)(struct ifdev * ifdev);
int (* iop_set_ifflags)(struct ifdev * ifdev, unsigned int ifflags);
void (* iop_get_ifcap)(struct ifdev * ifdev, uint64_t * ifcap,
uint64_t * ifena);
int (* iop_set_ifcap)(struct ifdev * ifdev, uint64_t ifcap);
void (* iop_get_ifmedia)(struct ifdev * ifdev, int * ifcurrent,
int * ifactive);
int (* iop_set_ifmedia)(struct ifdev * ifdev, int ifmedia);
void (* iop_set_promisc)(struct ifdev * ifdev, int promisc);
int (* iop_set_hwaddr)(struct ifdev * ifdev, const uint8_t * hwaddr);
int (* iop_set_mtu)(struct ifdev * ifdev, unsigned int mtu);
int (* iop_destroy)(struct ifdev * ifdev);
};
/* Hardware address list entry. The first entry, if any, is the active one. */
struct ifdev_hwaddr {
uint8_t ifhwa_addr[NETIF_MAX_HWADDR_LEN];
uint8_t ifhwa_flags;
};
#define IFHWAF_VALID 0x01 /* entry contains an address */
#define IFHWAF_FACTORY 0x02 /* factory (device-given) address */
/* Interface structure. */
struct ifdev {
TAILQ_ENTRY(ifdev) ifdev_next; /* list of active interfaces */
char ifdev_name[IFNAMSIZ]; /* interface name, null terminated */
unsigned int ifdev_ifflags; /* NetBSD-style interface flags */
unsigned int ifdev_dlt; /* data link type (DLT_) */
unsigned int ifdev_promisc; /* number of promiscuity requestors */
struct netif ifdev_netif; /* lwIP interface structure */
struct if_data ifdev_data; /* NetBSD-style interface data */
char ifdev_v4set; /* interface has an IPv4 address? */
uint8_t ifdev_v6prefix[LWIP_IPV6_NUM_ADDRESSES]; /* IPv6 prefixes */
uint8_t ifdev_v6flags[LWIP_IPV6_NUM_ADDRESSES]; /* v6 address flags */
uint8_t ifdev_v6state[LWIP_IPV6_NUM_ADDRESSES]; /* v6 shadow states */
uint8_t ifdev_v6scope[LWIP_IPV6_NUM_ADDRESSES]; /* cached v6 scopes */
struct ifdev_hwaddr ifdev_hwlist[IFDEV_NUM_HWADDRS]; /* HW addr's */
uint32_t ifdev_nd6flags; /* ND6-related flags (ND6_IFF_) */
const struct ifdev_ops *ifdev_ops; /* interface operations table */
TAILQ_HEAD(, bpfdev_link) ifdev_bpf; /* list of attached BPF devices */
};
#define ifdev_get_name(ifdev) ((ifdev)->ifdev_name)
#define ifdev_get_ifflags(ifdev) ((ifdev)->ifdev_ifflags)
#define ifdev_get_dlt(ifdev) ((ifdev)->ifdev_dlt)
#define ifdev_is_promisc(ifdev) ((ifdev)->ifdev_promisc != 0)
#define ifdev_get_netif(ifdev) (&(ifdev)->ifdev_netif)
#define ifdev_get_nd6flags(ifdev) ((ifdev)->ifdev_nd6flags)
#define ifdev_get_iftype(ifdev) ((ifdev)->ifdev_data.ifi_type)
#define ifdev_get_hwlen(ifdev) ((ifdev)->ifdev_data.ifi_addrlen)
#define ifdev_get_hdrlen(ifdev) ((ifdev)->ifdev_data.ifi_hdrlen)
#define ifdev_get_link(ifdev) ((ifdev)->ifdev_data.ifi_link_state)
#define ifdev_get_mtu(ifdev) ((ifdev)->ifdev_data.ifi_mtu)
#define ifdev_get_metric(ifdev) ((ifdev)->ifdev_data.ifi_metric)
#define ifdev_get_ifdata(ifdev) (&(ifdev)->ifdev_data)
#define ifdev_is_loopback(ifdev) ((ifdev)->ifdev_ifflags & IFF_LOOPBACK)
#define ifdev_is_up(ifdev) ((ifdev)->ifdev_ifflags & IFF_UP)
#define ifdev_is_link_up(ifdev) (netif_is_link_up(&(ifdev)->ifdev_netif))
#define ifdev_set_metric(ifdev, metric) \
((void)((ifdev)->ifdev_data.ifi_metric = (metric)))
#define ifdev_get_index(ifdev) \
((uint32_t)(netif_get_index(ifdev_get_netif(ifdev))))
#define ifdev_output_drop(ifdev) ((ifdev)->ifdev_data.ifi_oerrors++)
#define netif_get_ifdev(netif) ((struct ifdev *)(netif)->state)
void ifdev_init(void);
void ifdev_poll(void);
void ifdev_register(const char * name, int (* create)(const char *));
void ifdev_input(struct ifdev * ifdev, struct pbuf * pbuf,
struct netif * netif, int to_bpf);
err_t ifdev_output(struct ifdev * ifdev, struct pbuf * pbuf,
struct netif * netif, int to_bpf, int hdrcmplt);
void ifdev_attach_bpf(struct ifdev * ifdev, struct bpfdev_link * bpfl);
void ifdev_detach_bpf(struct ifdev * ifdev, struct bpfdev_link * bpfl);
struct ifdev *ifdev_get_by_index(uint32_t ifindex);
struct ifdev *ifdev_find_by_name(const char * name);
struct ifdev *ifdev_enum(struct ifdev * last);
int ifdev_check_name(const char * name, unsigned int * vtype_slot);
int ifdev_set_promisc(struct ifdev * ifdev);
void ifdev_clear_promisc(struct ifdev * ifdev);
int ifdev_set_ifflags(struct ifdev * ifdev, unsigned int ifflags);
void ifdev_update_ifflags(struct ifdev * ifdev, unsigned int ifflags);
void ifdev_get_ifcap(struct ifdev * ifdev, uint64_t * ifcap,
uint64_t * ifena);
int ifdev_set_ifcap(struct ifdev * ifdev, uint64_t ifena);
int ifdev_get_ifmedia(struct ifdev * ifdev, int * ifcurrent, int * ifactive);
int ifdev_set_ifmedia(struct ifdev * ifdev, int ifmedia);
int ifdev_set_mtu(struct ifdev * ifdev, unsigned int mtu);
int ifdev_set_nd6flags(struct ifdev * ifdev, uint32_t nd6flags);
void ifdev_add(struct ifdev * ifdev, const char * name, unsigned int ifflags,
unsigned int iftype, size_t hdrlen, size_t addrlen, unsigned int dlt,
unsigned int mtu, uint32_t nd6flags, const struct ifdev_ops * iop);
int ifdev_remove(struct ifdev * ifdev);
struct ifdev *ifdev_get_loopback(void);
void ifdev_update_link(struct ifdev * ifdev, int link);
void ifdev_update_hwaddr(struct ifdev * ifdev, const uint8_t * hwaddr,
int is_factory);
int ifdev_create(const char * name);
int ifdev_destroy(struct ifdev * ifdev);
const char *ifdev_enum_vtypes(unsigned int num);
#endif /* !MINIX_NET_LWIP_IFDEV_H */
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