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/*
* 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. 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
* $FreeBSD: src/sys/net/if.h,v 1.71 2002/03/19 21:54:16 alfred Exp $
*/
#ifndef _NET_IF_H
#define _NET_IF_H
#include <phoenix/iface.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/time.h>
struct ifnet;
/*
* Length of interface external name, including terminating '\0'.
* Note: this is the same size as a generic device's external name.
*/
#define IFNAMSIZ 16
#define IF_NAMESIZE IFNAMSIZ
#define IF_MAXUNIT 0x7fff /* ifp->if_unit is only 15 bits */
/* Structure describing a `cloning' interface. */
struct if_clone {
LIST_ENTRY(if_clone) ifc_list; /* On list of cloners */
const char *ifc_name; /* Name of device, e.g. `gif' */
size_t ifc_namelen; /* Length of name */
int ifc_maxunit; /* Maximum unit number */
unsigned char *ifc_units; /* Bitmap to handle units */
int ifc_bmlen; /* Bitmap length */
int (*ifc_create)(struct if_clone *, int);
int (*ifc_destroy)(struct ifnet *);
};
#define IF_CLONE_INITIALIZER(name, create, destroy, maxunit) \
{ { 0 }, name, sizeof(name) - 1, maxunit, NULL, 0, create, destroy }
/* Structure used to query names of interface cloners. */
struct if_clonereq {
int ifcr_total; /* Total cloners (out) */
int ifcr_count; /* Room for this many in user buffer */
char *ifcr_buffer; /* Buffer for cloner names */
};
/*
* Structure describing information about an interface
* which may be of interest to management entities.
*/
struct if_data {
/* Generic interface information */
u_char ifi_type; /* Ethernet, tokenring, etc */
u_char ifi_physical; /* E.g., AUI, Thinnet, 10base-T, etc */
u_char ifi_addrlen; /* Media address length */
u_char ifi_hdrlen; /* Media header length */
u_char ifi_recvquota; /* Polling quota for receive intrs */
u_char ifi_xmitquota; /* Polling quota for xmit intrs */
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 */
u_long ifi_hwassist; /* HW offload capabilities */
u_long ifi_unused; /* XXX was ifi_xmittiming */
struct timeval ifi_lastchange; /* Time of last administrative change */
};
/*
* The following flag(s) ought to go in if_flags, but we cannot change
* struct ifnet because of binary compatibility, so we store them in
* if_ipending, which is not used so far.
* If possible, make sure the value is not conflicting with other
* IFF flags, so we have an easier time when we want to merge them.
*/
#define IFF_POLLING 0x10000 /* Interface is in polling mode. */
/* Flags set internally only */
#define IFF_CANTCHANGE (IFF_BROADCAST | IFF_POINTOPOINT | IFF_RUNNING | IFF_OACTIVE | IFF_SIMPLEX | IFF_MULTICAST | IFF_ALLMULTI | IFF_NOTRAILERS)
/* Capabilities that interfaces can advertise. */
#define IFCAP_RXCSUM 0x0001 /* Can offload checksum on RX */
#define IFCAP_TXCSUM 0x0002 /* Can offload checksum on TX */
#define IFCAP_NETCONS 0x0004 /* Can be a network console */
#define IFCAP_HWCSUM (IFCAP_RXCSUM | IFCAP_TXCSUM)
#define IFQ_MAXLEN 50
#define IFNET_SLOWHZ 1 /* Granularity is 1 second */
/* 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 compatibility */
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 getkerninfo and the routing socket */
struct ifa_msghdr {
u_short ifam_msglen; /* To skip over non-understood messages */
u_char ifam_version; /* Future binary compatibility */
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 */
};
/* Message format for use in obtaining information about multicast addresses from the routing socket */
struct ifma_msghdr {
u_short ifmam_msglen; /* To skip over non-understood messages */
u_char ifmam_version; /* Future binary compatibility */
u_char ifmam_type; /* Message type */
int ifmam_addrs; /* Like rtm_addrs */
int ifmam_flags; /* Value of ifa_flags */
u_short ifmam_index; /* Index for associated ifp */
};
/* Message format announcing the arrival or departure of a network interface. */
struct if_announcemsghdr {
u_short ifan_msglen; /* To skip over non-understood messages */
u_char ifan_version; /* Future binary compatibility */
u_char ifan_type; /* Message type */
u_short ifan_index; /* Index for associated ifp */
char ifan_name[IFNAMSIZ]; /* If name, e.g. "en0" */
u_short ifan_what; /* What type of announcement */
};
#define IFAN_ARRIVAL 0 /* Interface arrival */
#define IFAN_DEPARTURE 1 /* Interface departure */
struct ifaliasreq {
char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */
struct sockaddr ifra_addr;
struct sockaddr ifra_broadaddr;
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 to retrieve aux status data from interfaces.
* Kernel suppliers to this interface should respect the formatting
* needed by ifconfig(8): each line starts with a TAB and ends with
* a newline. The canonical example to copy and paste is in if_tun.c.
*/
#define IFSTATMAX 800 /* 10 lines of text */
struct ifstat {
char ifs_name[IFNAMSIZ]; /* if name, e.g. "en0" */
char ascii[IFSTATMAX + 1];
};
/*
* 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 */
};
/* Structure for SIOC[AGD]LIFADDR */
struct if_laddrreq {
char iflr_name[IFNAMSIZ];
u_int flags;
#define IFLR_PREFIX 0x8000 /* in: prefix given out: kernel fills id */
u_int prefixlen; /* in/out */
struct sockaddr_storage addr; /* in/out */
struct sockaddr_storage dstaddr; /* out */
};
struct if_nameindex {
u_int if_index; /* 1, 2, ... */
char *if_name; /* null terminated name: "le0", ... */
};
unsigned int if_nametoindex(const char *ifname);
char *if_indextoname(unsigned int ifindex, char *ifname);
struct if_nameindex *if_nameindex();
void if_freenameindex(struct if_nameindex *ptr);
#endif
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