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- #ifndef _NET_IF_H_
- #define _NET_IF_H_
-
- #ifndef _SYS_TYPES_H_
- #include <sys/types.h>
- #endif
-
- #ifndef _SYS_SOCKET_H_
- #include <sys/socket.h>
- #endif
-
- #ifndef _SYS_TIME_H_
- #include <sys/time.h>
- #endif
-
-
- #define IFF_UP 0x1 /* interface is up */
- #define IFF_BROADCAST 0x2 /* broadcast address valid */
- #define IFF_DEBUG 0x4 /* turn on debugging */
- #define IFF_LOOPBACK 0x8 /* is a loopback net */
- #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */
- #define IFF_NOTRAILERS 0x20 /* avoid use of trailers */
- #define IFF_RUNNING 0x40 /* resources allocated */
- #define IFF_NOARP 0x80 /* no address resolution protocol */
- #define IFF_PROMISC 0x100 /* receive all packets */
- #define IFF_ALLMULTI 0x200 /* receive all multicast packets */
- #define IFF_OACTIVE 0x400 /* transmission in progress */
- #define IFF_SIMPLEX 0x800 /* can't hear own transmissions */
- #define IFF_LINK0 0x1000 /* per link layer defined bit */
- #define IFF_LINK1 0x2000 /* per link layer defined bit */
- #define IFF_LINK2 0x4000 /* per link layer defined bit */
- #define IFF_MULTICAST 0x8000 /* supports multicast */
-
- /* flags set internally only: */
- #define IFF_CANTCHANGE \
- (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
- IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI)
-
-
- struct if_data {
- /* generic interface information */
- u_char ifi_type; /* ethernet, tokenring, etc */
- u_char ifi_addrlen; /* media address length */
- u_char ifi_hdrlen; /* media header length */
- u_char ifi_pad1; /* force natural alignment */
- u_long ifi_mtu; /* maximum transmission unit */
- u_long ifi_metric; /* routing metric (external only) */
- u_long ifi_baudrate; /* linespeed */
- /* volatile statistics */
- u_long ifi_ipackets; /* packets received on interface */
- u_long ifi_ierrors; /* input errors on interface */
- u_long ifi_opackets; /* packets sent on interface */
- u_long ifi_oerrors; /* output errors on interface */
- u_long ifi_collisions; /* collisions on csma interfaces */
- u_long ifi_ibytes; /* total number of octets received */
- u_long ifi_obytes; /* total number of octets sent */
- u_long ifi_imcasts; /* packets received via multicast */
- u_long ifi_omcasts; /* packets sent via multicast */
- u_long ifi_iqdrops; /* dropped on input, this interface */
- u_long ifi_noproto; /* destined for unsupported protocol */
- struct timeval ifi_lastchange;/* last updated */
- };
-
- /*
- * The ifaddr structure contains information about one address
- * of an interface. They are maintained by the different address families,
- * are allocated and attached when an address is set, and are linked
- * together so all addresses for an interface can be located.
- */
- struct ifaddr {
- struct sockaddr *ifa_addr; /* address of interface */
- struct sockaddr *ifa_dstaddr; /* other end of p-to-p link */
- #define ifa_broadaddr ifa_dstaddr /* broadcast address interface */
- struct sockaddr *ifa_netmask; /* used to determine subnet */
- struct ifnet *ifa_ifp; /* back-pointer to interface */
- struct ifaddr *ifa_next; /* next address for interface */
- void (*ifa_rtrequest)(long,struct rtentry *,struct sockaddr *);
- u_short ifa_flags; /* mostly rt_flags for cloning */
- short ifa_refcnt; /* extra to malloc for link info */
- long ifa_metric; /* cost of going out this interface */
- };
- #define IFA_ROUTE RTF_UP /* route installed */
-
- /*
- * Message format for use in obtaining information about interfaces
- * from getkerninfo 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 */
- long ifm_addrs; /* like rtm_addrs */
- long ifm_flags; /* value of if_flags */
- u_short ifm_index; /* index for associated ifp */
- u_short ifm_pad1; /* force natural alignment */
- struct if_data ifm_data;/* statistics and other data about if */
- };
-
- /*
- * Message format for use in obtaining information about interface addresses
- * from getkerninfo 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 */
- long ifam_addrs; /* like rtm_addrs */
- long ifam_flags; /* value of ifa_flags */
- u_short ifam_index; /* index for associated ifp */
- u_short ifam_pad1; /* force natural alignment */
- long ifam_metric; /* value of ifa_metric */
- };
-
- /*
- * Interface request structure used for socket
- * ioctl's. All interface ioctl's must have parameter
- * definitions which begin with ifr_name. The
- * remainder may be interface specific.
- */
- struct ifreq {
- #define IFNAMSIZ 16
- char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
- union {
- struct sockaddr ifru_addr;
- struct sockaddr ifru_dstaddr;
- struct sockaddr ifru_broadaddr;
- short ifru_flags;
- long ifru_metric;
- long ifru_mtu;
- long ifru_phys;
- caddr_t ifru_data;
- } ifr_ifru;
- #define ifr_addr ifr_ifru.ifru_addr /* address */
- #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */
- #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
- #define ifr_flags ifr_ifru.ifru_flags /* flags */
- #define ifr_metric ifr_ifru.ifru_metric /* metric */
- #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
- #define ifr_phys ifr_ifru.ifru_phys /* physical wire */
- #define ifr_data ifr_ifru.ifru_data /* for use by interface */
- };
-
- struct ifaliasreq {
- char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */
- struct sockaddr ifra_addr;
- struct sockaddr ifra_broadaddr;
- struct sockaddr ifra_mask;
- };
-
- /*
- * Structure used in SIOCGIFCONF request.
- * Used to retrieve interface configuration
- * for machine (useful for programs which
- * must know all networks accessible).
- */
- struct ifconf {
- long ifc_len; /* size of associated buffer */
- union {
- caddr_t ifcu_buf;
- struct ifreq *ifcu_req;
- } ifc_ifcu;
- #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
- #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */
- };
-
- struct if_nameindex {
- unsigned long if_index;
- char *if_name;
- };
-
- #endif /* !_NET_IF_H_ */
-