X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=libs%2Fwatt32%2Fnet%2Fif.h;fp=libs%2Fwatt32%2Fnet%2Fif.h;h=cd20672b32082195de56f83d1ccb9b51817f2410;hb=214a070238552de6167bbf506cbc23006969a182;hp=0000000000000000000000000000000000000000;hpb=d3c8a942b99443abf0c11d9759994022ed6da597;p=oftp diff --git a/libs/watt32/net/if.h b/libs/watt32/net/if.h new file mode 100644 index 0000000..cd20672 --- /dev/null +++ b/libs/watt32/net/if.h @@ -0,0 +1,354 @@ +/*!\file net/if.h + * Network interface data. + */ + +/* $NetBSD: if.h,v 1.29 1997/10/02 19:41:57 is Exp $ */ + +/* + * Copyright (c) 1982, 1986, 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)if.h 8.1 (Berkeley) 6/10/93 + */ + +#ifndef __NET_IF_H +#define __NET_IF_H + +#include + +/* + * Structures defining a network interface, providing a packet + * transport mechanism (ala level 0 of the PUP protocols). + * + * Each interface accepts output datagrams of a specified maximum + * length, and provides higher level routines with input datagrams + * received from its medium. + * + * Output occurs when the routine if_output is called, with four parameters: + * (*ifp->if_output)(ifp, m, dst, rt) + * Here m is the mbuf chain to be sent and dst is the destination address. + * The output routine encapsulates the supplied datagram if necessary, + * and then transmits it on its medium. + * + * On input, each interface unwraps the data received by it, and either + * places it on the input queue of a internetwork datagram routine + * and posts the associated software interrupt, or passes the datagram to a raw + * packet input routine. + * + * Routines exist for locating interfaces by their addresses + * or for locating a interface on a certain network, as well as more general + * routing and gateway routines maintaining information used to locate + * interfaces. These routines live in the files if.c and route.c + */ +#ifndef __SYS_WTIME_H +#include +#endif + +struct mbuf; +struct rtentry; +struct ether_header; +struct proc { int dummy; }; +struct socket { int dummy; }; + +/* + * Structure defining statistics and other data kept regarding a network + * interface. + */ +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_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 */ +}; + +/* + * Structure defining a queue for a network interface. + * + * (Would like to call this struct ``if'', but C isn't PL/1.) + */ +TAILQ_HEAD(ifnet_head, ifnet); /* the actual queue head */ + +/* + * Length of interface external name, including terminating '\0'. + * Note: this is the same size as a generic device's external name. + */ +#define IFNAMSIZ 16 + +#ifndef IF_NAMESIZE +#define IF_NAMESIZE IFNAMSIZ +#endif + +struct ifnet { /* and the entries */ + void *if_softc; /* lower-level data for this if */ + TAILQ_ENTRY(ifnet) if_list; /* all struct ifnets are chained */ + TAILQ_HEAD(xx, ifaddr) if_addrlist; /* linked list of addresses per if */ + char if_xname[IFNAMSIZ]; /* external name (name + unit) */ + int if_pcount; /* number of promiscuous listeners */ + caddr_t if_bpf; /* packet filter structure */ + u_short if_index; /* numeric abbreviation for this if */ + short if_timer; /* time 'til if_watchdog called */ + short if_flags; /* up/down, broadcast, etc. */ + short if__pad1; /* be nice to m68k ports */ + struct if_data if_data; /* statistics and other data about if */ +/* procedure handles */ + int (*if_output) /* output routine (enqueue) */ + (struct ifnet *, struct mbuf *, struct sockaddr *, + struct rtentry *); + void (*if_start) /* initiate output routine */ + (struct ifnet *); + int (*if_ioctl) /* ioctl routine */ + (struct ifnet *, u_long, caddr_t); + int (*if_reset) /* XXX bus reset routine */ + (struct ifnet *); + void (*if_watchdog) /* timer routine */ + (struct ifnet *); + struct ifqueue { + struct mbuf *ifq_head; + struct mbuf *ifq_tail; + int ifq_len; + int ifq_maxlen; + int ifq_drops; + } if_snd; /* output queue */ + struct sockaddr_dl *if_sadl; /* pointer to our sockaddr_dl */ + u_int8_t *if_broadcastaddr; /* linklevel broadcast bytestring */ +}; + +#define if_mtu if_data.ifi_mtu +#define if_type if_data.ifi_type +#define if_addrlen if_data.ifi_addrlen +#define if_hdrlen if_data.ifi_hdrlen +#define if_metric if_data.ifi_metric +#define if_baudrate if_data.ifi_baudrate +#define if_ipackets if_data.ifi_ipackets +#define if_ierrors if_data.ifi_ierrors +#define if_opackets if_data.ifi_opackets +#define if_oerrors if_data.ifi_oerrors +#define if_collisions if_data.ifi_collisions +#define if_ibytes if_data.ifi_ibytes +#define if_obytes if_data.ifi_obytes +#define if_imcasts if_data.ifi_imcasts +#define if_omcasts if_data.ifi_omcasts +#define if_iqdrops if_data.ifi_iqdrops +#define if_noproto if_data.ifi_noproto +#define if_lastchange if_data.ifi_lastchange + +#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) + +/* + * Output queues (ifp->if_snd) and internetwork datagram level (pup level 1) + * input routines have queues of messages stored on ifqueue structures + * (defined above). Entries are added to and deleted from these structures + * by these macros, which should be called with ipl raised to splimp(). + */ +#define IF_QFULL(ifq) ((ifq)->ifq_len >= (ifq)->ifq_maxlen) +#define IF_DROP(ifq) ((ifq)->ifq_drops++) +#define IF_ENQUEUE(ifq, m) { \ + (m)->m_nextpkt = 0; \ + if ((ifq)->ifq_tail == 0) \ + (ifq)->ifq_head = m; \ + else \ + (ifq)->ifq_tail->m_nextpkt = m; \ + (ifq)->ifq_tail = m; \ + (ifq)->ifq_len++; \ +} +#define IF_PREPEND(ifq, m) { \ + (m)->m_nextpkt = (ifq)->ifq_head; \ + if ((ifq)->ifq_tail == 0) \ + (ifq)->ifq_tail = (m); \ + (ifq)->ifq_head = (m); \ + (ifq)->ifq_len++; \ +} +#define IF_DEQUEUE(ifq, m) { \ + (m) = (ifq)->ifq_head; \ + if (m) { \ + if (((ifq)->ifq_head = (m)->m_nextpkt) == 0) \ + (ifq)->ifq_tail = 0; \ + (m)->m_nextpkt = 0; \ + (ifq)->ifq_len--; \ + } \ +} + +#define IFQ_MAXLEN 50 +#define IFNET_SLOWHZ 1 /* granularity is 1 second */ + +/* + * 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 */ + TAILQ_ENTRY(ifaddr) ifa_list; /* list of addresses for interface */ + void (*ifa_rtrequest) /* check or clean routes (+ or -)'d */ + (int, struct rtentry *, struct sockaddr *); + u_short ifa_flags; /* mostly rt_flags for cloning */ + short ifa_refcnt; /* count of references */ + int 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 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 */ +}; + +/* + * 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 { + char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ + union { + struct sockaddr ifru_addr; + struct sockaddr ifru_dstaddr; + struct sockaddr ifru_hwaddr; + struct sockaddr ifru_broadaddr; + short ifru_flags; + int ifru_metric; + int ifru_mtu; + 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_hwaddr ifr_ifru.ifru_hwaddr /* hardware address */ +#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_media ifr_ifru.ifru_metric /* media options (overload) */ +#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_dstaddr; +#define ifra_broadaddr ifra_dstaddr + struct sockaddr ifra_mask; +}; + +struct ifmediareq { + char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */ + int ifm_current; /* current media options */ + int ifm_mask; /* don't care mask */ + int ifm_status; /* media status */ + int ifm_active; /* active options */ + int ifm_count; /* # entries in ifm_ulist array */ + int *ifm_ulist; /* media words */ +}; + +/* + * Structure used in SIOCGIFCONF request. + * Used to retrieve interface configuration + * for machine (useful for programs which + * must know all networks accessible). + */ +struct ifconf { + int 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 */ +}; + +#ifndef __NET_IF_ARP_H +#include +#endif + +#endif