279 lines
8.7 KiB
C
279 lines
8.7 KiB
C
/* if.h
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* Interface definitions for beos
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*/
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#ifndef _NET_IF_H
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#define _NET_IF_H
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/* FIXME: this file is NOT POSIX compliant, and rely on way too much OS-dependent
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definition.
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Moving private parts to private headers should help clean up this file
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POSIX net/if.h spec:
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http://www.opengroup.org/onlinepubs/007904975/basedefs/net/if.h.html
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*/
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#include <OS.h> /* FIXME */
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#include <net/if_types.h>
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#include <netinet/in.h>
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#include <net/route.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Forward reference... */
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struct socket;
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/* Media types are now listed in net/if_types.h */
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/* Interface flags */
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enum {
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IFF_UP = 0x0001,
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IFF_DOWN = 0x0002,
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IFF_PROMISC = 0x0004,
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IFF_RUNNING = 0x0008,
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IFF_MULTICAST = 0x0010,
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IFF_BROADCAST = 0x0020,
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IFF_POINTOPOINT = 0x0040,
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IFF_NOARP = 0x0080,
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IFF_LOOPBACK = 0x0100,
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IFF_DEBUG = 0x0200,
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IFF_LINK0 = 0x0400,
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IFF_LINK1 = 0x0800,
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IFF_LINK2 = 0x1000,
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IFF_SIMPLEX = 0x2000
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};
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struct ifq {
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struct mbuf *head;
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struct mbuf *tail;
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int maxlen;
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int len;
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sem_id lock;
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sem_id pop;
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};
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#define IFQ_FULL(ifq) (ifq->len >= ifq->maxlen)
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#define IFQ_ENQUEUE(ifq, m) { \
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acquire_sem((ifq)->lock); \
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(m)->m_nextpkt = 0; \
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if ((ifq)->tail == 0) \
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(ifq)->head = m; \
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else \
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(ifq)->tail->m_nextpkt = m; \
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(ifq)->tail = m; \
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(ifq)->len++; \
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release_sem((ifq)->lock); \
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release_sem((ifq)->pop); \
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}
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#define IFQ_DEQUEUE(ifq, m) { \
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acquire_sem((ifq)->lock); \
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(m) = (ifq)->head; \
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if (m) { \
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if (((ifq)->head = (m)->m_nextpkt) == 0) \
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(ifq)->tail = 0; \
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(m)->m_nextpkt = 0; \
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(ifq)->len--; \
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} \
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release_sem((ifq)->lock); \
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}
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struct ifaddr {
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struct ifaddr *ifa_next; /* the next address for the interface */
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struct ifnet *ifa_ifp; /* pointer to the interface structure */
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struct sockaddr *ifa_addr; /* the address - cast to be a suitable type, so we
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* use this structure to store any type of address that
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* we have a struct sockaddr_? for. e.g.
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* link level address via sockaddr_dl and
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* ipv4 via sockeddr_in
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* same for next 2 pointers as well
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*/
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struct sockaddr *ifa_dstaddr; /* if we're on a point-to-point link this
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* is the other end */
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struct sockaddr *ifa_netmask; /* The netmask we're using */
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/* check or clean routes... */
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void (*ifa_rtrequest)(int, struct rtentry *, struct sockaddr *);
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uint8 ifa_flags; /* flags (mainly routing */
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uint16 ifa_refcnt; /* how many references are there to
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* this structure? */
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int ifa_metric; /* the metirc for this interface/address */
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};
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#define ifa_broadaddr ifa_dstaddr
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struct if_data {
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uint8 ifi_type; /* type of media */
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uint8 ifi_addrlen; /* length of media address length */
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uint8 ifi_hdrlen; /* size of media header */
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uint32 ifi_mtu; /* mtu */
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uint32 ifi_metric; /* routing metric */
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uint32 ifi_baudrate; /* baudrate of line */
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/* statistics!! */
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int32 ifi_ipackets; /* packets received on interface */
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int32 ifi_ierrors; /* input errors on interface */
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int32 ifi_opackets; /* packets sent on interface */
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int32 ifi_oerrors; /* output errors on interface */
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int32 ifi_collisions; /* collisions on csma interfaces */
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int32 ifi_ibytes; /* total number of octets received */
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int32 ifi_obytes; /* total number of octets sent */
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int32 ifi_imcasts; /* packets received via multicast */
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int32 ifi_omcasts; /* packets sent via multicast */
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int32 ifi_iqdrops; /* dropped on input, this interface */
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int32 ifi_noproto; /* destined for unsupported protocol */
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};
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struct ifnet {
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struct ifnet *if_next; /* next device */
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struct ifaddr *if_addrlist; /* linked list of addresses */
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int devid; /* our device id if we have one... */
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int id; /* id within the stack's device list */
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char *name; /* name of driver e.g. tulip */
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int if_unit; /* number of unit e.g 0 */
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char *if_name; /* full name, e.g. tulip0 */
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struct if_data ifd; /* if_data structure, shortcuts below */
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int if_flags; /* if flags */
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int if_index; /* our index in ifnet_addrs and interfaces */
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struct ifq *rxq;
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thread_id rx_thread;
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struct ifq *txq;
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thread_id tx_thread;
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struct ifq *devq;
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int (*start) (struct ifnet *);
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int (*stop) (struct ifnet *);
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void (*input) (struct mbuf*);
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int (*output)(struct ifnet *, struct mbuf*,
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struct sockaddr*, struct rtentry *);
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int (*ioctl) (struct ifnet *, ulong, caddr_t);
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};
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#define if_mtu ifd.ifi_mtu
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#define if_type ifd.ifi_type
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#define if_addrlen ifd.ifi_addrlen
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#define if_hdrlen ifd.ifi_hdrlen
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#define if_metric ifd.ifi_metric
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#define if_baudrate ifd.ifi_baudrate
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#define if_ipackets ifd.ifi_ipackets
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#define if_ierrors ifd.ifi_ierrors
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#define if_opackets ifd.ifi_opackets
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#define if_oerrors ifd.ifi_oerrors
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#define if_collisions ifd.ifi_collisions
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#define if_ibytes ifd.ifi_ibytes
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#define if_obytes ifd.ifi_obytes
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#define if_imcasts ifd.ifi_imcasts
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#define if_omcasts ifd.ifi_omcasts
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#define if_iqdrops ifd.ifi_iqdrops
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#define if_noproto ifd.ifi_noproto
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#define IFNAMSIZ 16
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/* This structure is used for passing interface requests via ioctl */
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struct ifreq {
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char ifr_name[IFNAMSIZ]; /* name of interface */
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union {
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struct sockaddr ifru_addr;
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struct sockaddr ifru_dstaddr;
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struct sockaddr ifru_broadaddr;
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uint16 ifru_flags;
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int ifru_metric;
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char * ifru_data;
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} ifr_ifru;
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};
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#define ifr_addr ifr_ifru.ifru_addr
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#define ifr_dstaddr ifr_ifru.ifru_dstaddr
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#define ifr_broadaddr ifr_ifru.ifru_broadaddr
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#define ifr_flags ifr_ifru.ifru_flags
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#define ifr_metric ifr_ifru.ifru_metric
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#define ifr_mtu ifr_ifru.ifru_metric /* sneaky overload :) */
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#define ifr_data ifr_ifru.ifru_data
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struct ifconf {
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int ifc_len; /* length of associated buffer */
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union {
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char * ifcu_buf;
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struct ifreq *ifcu_req;
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} ifc_ifcu;
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};
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#define ifc_buf ifc_ifcu.ifcu_buf
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#define ifc_req ifc_ifcu.ifcu_req
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#define IFAFREE(ifa) \
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do { \
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if ((ifa)->ifa_refcnt <= 0) \
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ifafree(ifa); \
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else \
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(ifa)->ifa_refcnt--; \
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} while (0)
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/* used to pass in additional information, such as aliases */
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struct ifaliasreq {
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char ifa_name[IFNAMSIZ];
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struct sockaddr ifra_addr;
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struct sockaddr ifra_broadaddr;
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#define ifra_dstaddr ifra_broadaddr
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struct sockaddr ifra_mask;
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};
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#define IFA_ROUTE RTF_UP
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/*
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* Message format for use in obtaining information about interfaces
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* from sysctl and the routing socket.
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*/
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struct if_msghdr {
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u_short ifm_msglen; /* to skip over non-understood messages */
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u_char ifm_version; /* future binary compatability */
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u_char ifm_type; /* message type */
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int ifm_addrs; /* like rtm_addrs */
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int ifm_flags; /* value of if_flags */
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u_short ifm_index; /* index for associated ifp */
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struct if_data ifm_data;/* statistics and other data about if */
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};
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/*
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* Message format for use in obtaining information about interface addresses
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* from sysctl and the routing socket.
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*/
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struct ifa_msghdr {
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u_short ifam_msglen; /* to skip over non-understood messages */
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u_char ifam_version; /* future binary compatability */
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u_char ifam_type; /* message type */
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int ifam_addrs; /* like rtm_addrs */
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int ifam_flags; /* value of ifa_flags */
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u_short ifam_index; /* index for associated ifp */
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int ifam_metric; /* value of ifa_metric */
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};
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/* function declaration */
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struct ifq *start_ifq(void);
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void stop_ifq(struct ifq *);
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struct ifnet *get_interfaces(void);
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struct ifnet *ifunit(char *name);
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struct ifaddr *ifa_ifwithaddr(struct sockaddr *);
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struct ifaddr *ifa_ifwithaf(int);
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struct ifaddr *ifa_ifwithdstaddr(struct sockaddr *);
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struct ifaddr *ifa_ifwithnet(struct sockaddr *);
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struct ifaddr *ifa_ifwithroute(int, struct sockaddr *,
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struct sockaddr *);
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struct ifaddr *ifaof_ifpforaddr(struct sockaddr *, struct ifnet *);
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void ifafree(struct ifaddr *);
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void if_attach(struct ifnet *ifp);
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void if_detach(struct ifnet *ifp);
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int ifioctl(struct socket *so, ulong cmd, caddr_t data);
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int ifconf(int cmd, char *data);
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void if_init(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _NET_IF_H */
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