/* if.h * Interface definitions for beos */ #ifndef _NET_IF_H #define _NET_IF_H #include #include #include #include #include #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 */