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haiku/headers/posix/net/if.h
shatty b5dc136f9a remove OS.h since it is already included through socketvar.h 
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4196 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-08-02 06:02:20 +00:00

279 lines
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C
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/* if.h
* Interface definitions for beos
*/
#ifndef _NET_IF_H
#define _NET_IF_H
#include <Drivers.h>
#include <sys/socketvar.h>
#include <net/if_types.h>
#include <netinet/in.h>
#include <net/route.h>
#ifdef __cplusplus
extern "C" {
#endif
enum {
IF_GETADDR = B_DEVICE_OP_CODES_END,
IF_INIT,
IF_NONBLOCK,
IF_ADDMULTI,
IF_REMMULTI,
IF_SETPROMISC,
IF_GETFRAMESIZE
};
/* Media types are now listed in net/if_types.h */
/* Interface flags */
enum {
IFF_UP = 0x0001,
IFF_DOWN = 0x0002,
IFF_PROMISC = 0x0004,
IFF_RUNNING = 0x0008,
IFF_MULTICAST = 0x0010,
IFF_BROADCAST = 0x0020,
IFF_POINTOPOINT = 0x0040,
IFF_NOARP = 0x0080,
IFF_LOOPBACK = 0x0100,
IFF_DEBUG = 0x0200,
IFF_LINK0 = 0x0400,
IFF_LINK1 = 0x0800,
IFF_LINK2 = 0x1000,
IFF_SIMPLEX = 0x2000
};
struct ifq {
struct mbuf *head;
struct mbuf *tail;
int maxlen;
int len;
sem_id lock;
sem_id pop;
};
#define IFQ_FULL(ifq) (ifq->len >= ifq->maxlen)
#define IFQ_ENQUEUE(ifq, m) { \
acquire_sem((ifq)->lock); \
(m)->m_nextpkt = 0; \
if ((ifq)->tail == 0) \
(ifq)->head = m; \
else \
(ifq)->tail->m_nextpkt = m; \
(ifq)->tail = m; \
(ifq)->len++; \
release_sem((ifq)->lock); \
release_sem((ifq)->pop); \
}
#define IFQ_DEQUEUE(ifq, m) { \
acquire_sem((ifq)->lock); \
(m) = (ifq)->head; \
if (m) { \
if (((ifq)->head = (m)->m_nextpkt) == 0) \
(ifq)->tail = 0; \
(m)->m_nextpkt = 0; \
(ifq)->len--; \
} \
release_sem((ifq)->lock); \
}
struct ifaddr {
struct ifaddr *ifa_next; /* the next address for the interface */
struct ifnet *ifa_ifp; /* pointer to the interface structure */
struct sockaddr *ifa_addr; /* the address - cast to be a suitable type, so we
* use this structure to store any type of address that
* we have a struct sockaddr_? for. e.g.
* link level address via sockaddr_dl and
* ipv4 via sockeddr_in
* same for next 2 pointers as well
*/
struct sockaddr *ifa_dstaddr; /* if we're on a point-to-point link this
* is the other end */
struct sockaddr *ifa_netmask; /* The netmask we're using */
/* check or clean routes... */
void (*ifa_rtrequest)(int, struct rtentry *, struct sockaddr *);
uint8 ifa_flags; /* flags (mainly routing */
uint16 ifa_refcnt; /* how many references are there to
* this structure? */
int ifa_metric; /* the metirc for this interface/address */
};
#define ifa_broadaddr ifa_dstaddr
struct if_data {
uint8 ifi_type; /* type of media */
uint8 ifi_addrlen; /* length of media address length */
uint8 ifi_hdrlen; /* size of media header */
uint32 ifi_mtu; /* mtu */
uint32 ifi_metric; /* routing metric */
uint32 ifi_baudrate; /* baudrate of line */
/* statistics!! */
int32 ifi_ipackets; /* packets received on interface */
int32 ifi_ierrors; /* input errors on interface */
int32 ifi_opackets; /* packets sent on interface */
int32 ifi_oerrors; /* output errors on interface */
int32 ifi_collisions; /* collisions on csma interfaces */
int32 ifi_ibytes; /* total number of octets received */
int32 ifi_obytes; /* total number of octets sent */
int32 ifi_imcasts; /* packets received via multicast */
int32 ifi_omcasts; /* packets sent via multicast */
int32 ifi_iqdrops; /* dropped on input, this interface */
int32 ifi_noproto; /* destined for unsupported protocol */
};
struct ifnet {
struct ifnet *if_next; /* next device */
struct ifaddr *if_addrlist; /* linked list of addresses */
int devid; /* our device id if we have one... */
int id; /* id within the stack's device list */
char *name; /* name of driver e.g. tulip */
int if_unit; /* number of unit e.g 0 */
char *if_name; /* full name, e.g. tulip0 */
struct if_data ifd; /* if_data structure, shortcuts below */
int if_flags; /* if flags */
int if_index; /* our index in ifnet_addrs and interfaces */
struct ifq *rxq;
thread_id rx_thread;
struct ifq *txq;
thread_id tx_thread;
struct ifq *devq;
int (*start) (struct ifnet *);
int (*stop) (struct ifnet *);
void (*input) (struct mbuf*);
int (*output)(struct ifnet *, struct mbuf*,
struct sockaddr*, struct rtentry *);
int (*ioctl) (struct ifnet *, ulong, caddr_t);
};
#define if_mtu ifd.ifi_mtu
#define if_type ifd.ifi_type
#define if_addrlen ifd.ifi_addrlen
#define if_hdrlen ifd.ifi_hdrlen
#define if_metric ifd.ifi_metric
#define if_baudrate ifd.ifi_baurdate
#define if_ipackets ifd.ifi_ipackets
#define if_ierrors ifd.ifi_ierrors
#define if_opackets ifd.ifi_opackets
#define if_oerrors ifd.ifi_oerrors
#define if_collisions ifd.ifi_collisions
#define if_ibytes ifd.ifi_ibytes
#define if_obytes ifd.ifi_obytes
#define if_imcasts ifd.ifi_imcasts
#define if_omcasts ifd.ifi_omcasts
#define if_iqdrops ifd.ifi_iqdrops
#define if_noproto ifd.ifi_noproto
#define IFNAMSIZ 16
/* This structure is used for passing interface requests via ioctl */
struct ifreq {
char ifr_name[IFNAMSIZ]; /* name of interface */
union {
struct sockaddr ifru_addr;
struct sockaddr ifru_dstaddr;
struct sockaddr ifru_broadaddr;
uint16 ifru_flags;
int ifru_metric;
char * ifru_data;
} ifr_ifru;
};
#define ifr_addr ifr_ifru.ifru_addr
#define ifr_dstaddr ifr_ifru.ifru_dstaddr
#define ifr_broadaddr ifr_ifru.ifru_broadaddr
#define ifr_flags ifr_ifru.ifru_flags
#define ifr_metric ifr_ifru.ifru_metric
#define ifr_mtu ifr_ifru.ifru_metric /* sneaky overload :) */
#define ifr_data ifr_ifru.ifru_data
struct ifconf {
int ifc_len; /* length of associated buffer */
union {
char * ifcu_buf;
struct ifreq *ifcu_req;
} ifc_ifcu;
};
#define ifc_buf ifc_ifcu.ifcu_buf
#define ifc_req ifc_ifcu.ifcu_req
#define IFAFREE(ifa) \
do { \
if ((ifa)->ifa_refcnt <= 0) \
ifafree(ifa); \
else \
(ifa)->ifa_refcnt--; \
} while (0)
/* used to pass in additional information, such as aliases */
struct ifaliasreq {
char ifa_name[IFNAMSIZ];
struct sockaddr ifra_addr;
struct sockaddr ifra_broadaddr;
#define ifra_dstaddr ifra_broadaddr
struct sockaddr ifra_mask;
};
#define IFA_ROUTE RTF_UP
/*
* Message format for use in obtaining information about interfaces
* from sysctl and the routing socket.
*/
struct if_msghdr {
u_short ifm_msglen; /* to skip over non-understood messages */
u_char ifm_version; /* future binary compatability */
u_char ifm_type; /* message type */
int ifm_addrs; /* like rtm_addrs */
int ifm_flags; /* value of if_flags */
u_short ifm_index; /* index for associated ifp */
struct if_data ifm_data;/* statistics and other data about if */
};
/*
* Message format for use in obtaining information about interface addresses
* from sysctl and the routing socket.
*/
struct ifa_msghdr {
u_short ifam_msglen; /* to skip over non-understood messages */
u_char ifam_version; /* future binary compatability */
u_char ifam_type; /* message type */
int ifam_addrs; /* like rtm_addrs */
int ifam_flags; /* value of ifa_flags */
u_short ifam_index; /* index for associated ifp */
int ifam_metric; /* value of ifa_metric */
};
/* function declaration */
struct ifq *start_ifq(void);
void stop_ifq(struct ifq *);
struct ifnet *get_interfaces(void);
struct ifnet *ifunit(char *name);
struct ifaddr *ifa_ifwithaddr(struct sockaddr *);
struct ifaddr *ifa_ifwithaf(int);
struct ifaddr *ifa_ifwithdstaddr(struct sockaddr *);
struct ifaddr *ifa_ifwithnet(struct sockaddr *);
struct ifaddr *ifa_ifwithroute(int, struct sockaddr *,
struct sockaddr *);
struct ifaddr *ifaof_ifpforaddr(struct sockaddr *, struct ifnet *);
void ifafree(struct ifaddr *);
void if_attach(struct ifnet *ifp);
void if_detach(struct ifnet *ifp);
int ifioctl(struct socket *so, ulong cmd, caddr_t data);
int ifconf(int cmd, char *data);
void if_init(void);
#ifdef __cplusplus
}
#endif
#endif /* _NET_IF_H */
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