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Diffstat (limited to 'cpukit/libnetworking/net/if_var.h')
| -rw-r--r-- | cpukit/libnetworking/net/if_var.h | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/cpukit/libnetworking/net/if_var.h b/cpukit/libnetworking/net/if_var.h deleted file mode 100644 index 222862c451..0000000000 --- a/cpukit/libnetworking/net/if_var.h +++ /dev/null @@ -1,256 +0,0 @@ -/* - * 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. - * 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. - * - * From: @(#)if.h 8.1 (Berkeley) 6/10/93 - * $FreeBSD: src/sys/net/if_var.h,v 1.107 2006/06/19 22:20:44 mlaier Exp $ - */ - - -#ifndef _NET_IF_VAR_H_ -#define _NET_IF_VAR_H_ - -#include <net/if.h> /* struct if_data */ -#include <sys/ioccom.h> /* ioctl_command_t */ - -/* - * 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 three 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 an 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 an 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 - */ - -/* - * Forward structure declarations for function prototypes [sic]. - */ -struct mbuf; -#ifndef __rtems__ -struct thread; -#endif -struct rtentry; -struct rt_addrinfo; -struct socket; -struct ether_header; -#ifndef __rtems__ -struct carp_if; -#endif - -#include <sys/queue.h> /* get TAILQ macros */ - -/* - * Structure defining a queue for a network interface. - */ -struct ifqueue { - struct mbuf *ifq_head; - struct mbuf *ifq_tail; - int ifq_len; - int ifq_maxlen; - int ifq_drops; -}; - -/* - * Structure defining a network interface. - * - * (Would like to call this struct ``if'', but C isn't PL/1.) - */ -struct ifnet { - void *if_softc; /* pointer to driver state */ - char *if_name; /* name, e.g. ``en'' or ``lo'' */ - struct ifnet *if_next; /* all struct ifnets are chained */ - struct ifaddr *if_addrlist; /* linked list of addresses per if */ - int if_pcount; /* number of promiscuous listeners */ - struct bpf_if *if_bpf; /* packet filter structure */ - u_short if_index; /* numeric abbreviation for this if */ - short if_unit; /* sub-unit for lower level driver */ - short if_timer; /* time 'til if_watchdog called */ - int if_flags; /* up/down, broadcast, etc. */ - void *if_linkmib; /* link-type-specific MIB data */ - size_t if_linkmiblen; /* length of above data */ - struct if_data if_data; -/* 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 *, ioctl_command_t, caddr_t); - void (*if_watchdog) /* timer routine */ - (struct ifnet *); - int (*if_poll_recv) /* polled receive routine */ - (struct ifnet *, int *); - int (*if_poll_xmit) /* polled transmit routine */ - (struct ifnet *, int *); - void (*if_poll_intren) /* polled interrupt reenable routine */ - (struct ifnet *); - void (*if_poll_slowinput) /* input routine for slow devices */ - (struct ifnet *, struct mbuf *); - void (*if_init) /* Init routine */ - (void *); - int (*if_tap) /* Packet filter routine */ - (struct ifnet *, struct ether_header *, struct mbuf *); - struct ifqueue if_snd; /* output queue */ - struct ifqueue *if_poll_slowq; /* input queue for slow devices */ -}; - -typedef void if_init_f_t(void *); - -/* - * XXX These aliases are terribly dangerous because they could apply - * to anything. - */ -#define if_mtu if_data.ifi_mtu -#define if_type if_data.ifi_type -#define if_physical if_data.ifi_physical -#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 if_recvquota if_data.ifi_recvquota -#define if_xmitquota if_data.ifi_xmitquota -#define if_rawoutput(if, m, sa) if_output(if, m, sa, (struct rtentry *)NULL) - -/* - * Output queues (ifp->if_snd) and slow device input queues (*ifp->if_slowq) - * are 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) do { \ - (m)->m_nextpkt = NULL; \ - if ((ifq)->ifq_tail == NULL) \ - (ifq)->ifq_head = m; \ - else \ - (ifq)->ifq_tail->m_nextpkt = m; \ - (ifq)->ifq_tail = m; \ - (ifq)->ifq_len++; \ -} while (0) - -#define IF_PREPEND(ifq, m) do { \ - (m)->m_nextpkt = (ifq)->ifq_head; \ - if ((ifq)->ifq_tail == NULL) \ - (ifq)->ifq_tail = (m); \ - (ifq)->ifq_head = (m); \ - (ifq)->ifq_len++; \ -} while (0) - -#define IF_DEQUEUE(ifq, m) do { \ - (m) = (ifq)->ifq_head; \ - if (m) { \ - if (((ifq)->ifq_head = (m)->m_nextpkt) == NULL) \ - (ifq)->ifq_tail = NULL; \ - (m)->m_nextpkt = NULL; \ - (ifq)->ifq_len--; \ - } \ -} while (0) - -/* - * 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) /* check or clean routes (+ or -)'d */ - (int, struct rtentry *, struct sockaddr *); - u_short ifa_flags; /* mostly rt_flags for cloning */ - u_int ifa_refcnt; /* references to this structure */ - int ifa_metric; /* cost of going out this interface */ - int (*ifa_claim_addr) /* check if an addr goes to this if */ - (struct ifaddr *, struct sockaddr *); - -}; -#define IFA_ROUTE RTF_UP /* route installed */ - -#ifdef _KERNEL -#define IFAFREE(ifa) \ - if ((ifa)->ifa_refcnt <= 0) \ - ifafree(ifa); \ - else \ - (ifa)->ifa_refcnt--; - -extern struct ifnet *ifnet; -extern int ifqmaxlen; -extern struct ifnet loif[]; -extern int if_index; -extern struct ifaddr **ifnet_addrs; - -void if_attach(struct ifnet *); -void if_down(struct ifnet *); -void if_up(struct ifnet *); -/*void ifinit(void);*/ /* declared in systm.h for main() */ -int ifioctl(struct socket *, u_long, caddr_t, struct proc *); -int ifpromisc(struct ifnet *, int); - -struct ifaddr *ifa_ifwithaddr(struct sockaddr *); -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 *); - -#endif /* _KERNEL */ - -#endif /* !_NET_IF_VAR_H_ */ |