883 lines
30 KiB
C
883 lines
30 KiB
C
/* $NetBSD: if.h,v 1.111 2005/07/27 06:36:15 dyoung Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1999, 2000, 2001 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by William Studenmund and Jason R. Thorpe.
|
|
*
|
|
* 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 NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
/*
|
|
* 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 8.3 (Berkeley) 2/9/95
|
|
*/
|
|
|
|
#ifndef _NET_IF_H_
|
|
#define _NET_IF_H_
|
|
|
|
#include <sys/featuretest.h>
|
|
|
|
/*
|
|
* Length of interface external name, including terminating '\0'.
|
|
* Note: this is the same size as a generic device's external name.
|
|
*/
|
|
#define IF_NAMESIZE 16
|
|
|
|
#if defined(_NETBSD_SOURCE)
|
|
|
|
#include <sys/socket.h>
|
|
#include <sys/queue.h>
|
|
#include <net/dlt.h>
|
|
#include <net/pfil.h>
|
|
|
|
/*
|
|
* Always include ALTQ glue here -- we use the ALTQ interface queue
|
|
* structure even when ALTQ is not configured into the kernel so that
|
|
* the size of struct ifnet does not changed based on the option. The
|
|
* ALTQ queue structure is API-compatible with the legacy ifqueue.
|
|
*/
|
|
#include <altq/if_altq.h>
|
|
|
|
/*
|
|
* 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
|
|
*/
|
|
/* XXX fast fix for SNMP, going away soon */
|
|
#include <sys/time.h>
|
|
|
|
#if defined(_KERNEL_OPT)
|
|
#include "opt_compat_netbsd.h"
|
|
#include "agr.h"
|
|
#endif
|
|
|
|
struct mbuf;
|
|
struct proc;
|
|
struct rtentry;
|
|
struct socket;
|
|
struct ether_header;
|
|
struct ifnet;
|
|
struct rt_addrinfo;
|
|
|
|
#define IFNAMSIZ IF_NAMESIZE
|
|
|
|
/*
|
|
* 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_create)(struct if_clone *, int);
|
|
int (*ifc_destroy)(struct ifnet *);
|
|
};
|
|
|
|
#define IF_CLONE_INITIALIZER(name, create, destroy) \
|
|
{ { 0 }, name, sizeof(name) - 1, 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 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 */
|
|
int ifi_link_state; /* current link state */
|
|
u_quad_t ifi_mtu; /* maximum transmission unit */
|
|
u_quad_t ifi_metric; /* routing metric (external only) */
|
|
u_quad_t ifi_baudrate; /* linespeed */
|
|
/* volatile statistics */
|
|
u_quad_t ifi_ipackets; /* packets received on interface */
|
|
u_quad_t ifi_ierrors; /* input errors on interface */
|
|
u_quad_t ifi_opackets; /* packets sent on interface */
|
|
u_quad_t ifi_oerrors; /* output errors on interface */
|
|
u_quad_t ifi_collisions; /* collisions on csma interfaces */
|
|
u_quad_t ifi_ibytes; /* total number of octets received */
|
|
u_quad_t ifi_obytes; /* total number of octets sent */
|
|
u_quad_t ifi_imcasts; /* packets received via multicast */
|
|
u_quad_t ifi_omcasts; /* packets sent via multicast */
|
|
u_quad_t ifi_iqdrops; /* dropped on input, this interface */
|
|
u_quad_t ifi_noproto; /* destined for unsupported protocol */
|
|
struct timeval ifi_lastchange; /* last operational state change */
|
|
};
|
|
|
|
/*
|
|
* Values for if_link_state.
|
|
*/
|
|
#define LINK_STATE_UNKNOWN 0 /* link invalid/unknown */
|
|
#define LINK_STATE_DOWN 1 /* link is down */
|
|
#define LINK_STATE_UP 2 /* link is up */
|
|
|
|
#if defined(_KERNEL) && defined(COMPAT_14)
|
|
/* Pre-1.5 if_data struct */
|
|
struct if_data14 {
|
|
/* 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 operational state change */
|
|
};
|
|
#endif /* _KERNEL && COMPAT_14 */
|
|
|
|
/*
|
|
* 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 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 */
|
|
|
|
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(, 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. If you add more of these, don't forget the
|
|
* corresponding NULL stub in if.c.
|
|
*/
|
|
int (*if_output) /* output routine (enqueue) */
|
|
__P((struct ifnet *, struct mbuf *, struct sockaddr *,
|
|
struct rtentry *));
|
|
void (*if_input) /* input routine (from h/w driver) */
|
|
__P((struct ifnet *, struct mbuf *));
|
|
void (*if_start) /* initiate output routine */
|
|
__P((struct ifnet *));
|
|
int (*if_ioctl) /* ioctl routine */
|
|
__P((struct ifnet *, u_long, caddr_t));
|
|
int (*if_init) /* init routine */
|
|
__P((struct ifnet *));
|
|
void (*if_stop) /* stop routine */
|
|
__P((struct ifnet *, int));
|
|
void (*if_watchdog) /* timer routine */
|
|
__P((struct ifnet *));
|
|
void (*if_drain) /* routine to release resources */
|
|
__P((struct ifnet *));
|
|
struct ifaltq if_snd; /* output queue (includes altq) */
|
|
struct sockaddr_dl *if_sadl; /* pointer to our sockaddr_dl */
|
|
const uint8_t *if_broadcastaddr;/* linklevel broadcast bytestring */
|
|
void *if_bridge; /* bridge glue */
|
|
int if_dlt; /* data link type (<net/dlt.h>) */
|
|
struct pfil_head if_pfil; /* filtering point */
|
|
uint64_t if_capabilities; /* interface capabilities */
|
|
uint64_t if_capenable; /* capabilities enabled */
|
|
|
|
/*
|
|
* These are pre-computed based on an interfaces enabled
|
|
* capabilities, for speed elsewhere.
|
|
*/
|
|
int if_csum_flags_tx; /* M_CSUM_* flags for Tx */
|
|
int if_csum_flags_rx; /* M_CSUM_* flags for Rx */
|
|
|
|
void *if_afdata[AF_MAX];
|
|
struct mowner *if_mowner; /* who owns mbufs for this interface */
|
|
|
|
#if NAGR > 0
|
|
void *if_agrprivate;
|
|
#endif
|
|
};
|
|
#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_link_state if_data.ifi_link_state
|
|
#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 0x0001 /* interface is up */
|
|
#define IFF_BROADCAST 0x0002 /* broadcast address valid */
|
|
#define IFF_DEBUG 0x0004 /* turn on debugging */
|
|
#define IFF_LOOPBACK 0x0008 /* is a loopback net */
|
|
#define IFF_POINTOPOINT 0x0010 /* interface is point-to-point link */
|
|
#define IFF_NOTRAILERS 0x0020 /* avoid use of trailers */
|
|
#define IFF_RUNNING 0x0040 /* resources allocated */
|
|
#define IFF_NOARP 0x0080 /* no address resolution protocol */
|
|
#define IFF_PROMISC 0x0100 /* receive all packets */
|
|
#define IFF_ALLMULTI 0x0200 /* receive all multicast packets */
|
|
#define IFF_OACTIVE 0x0400 /* transmission in progress */
|
|
#define IFF_SIMPLEX 0x0800 /* 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 */
|
|
|
|
#define IFFBITS \
|
|
"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS" \
|
|
"\7RUNNING\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX" \
|
|
"\15LINK0\16LINK1\17LINK2\20MULTICAST"
|
|
|
|
/* flags set internally only: */
|
|
#define IFF_CANTCHANGE \
|
|
(IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
|
|
IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI|IFF_PROMISC)
|
|
|
|
/*
|
|
* Some convenience macros used for setting ifi_baudrate.
|
|
* XXX 1000 vs. 1024? --thorpej@NetBSD.org
|
|
*/
|
|
#define IF_Kbps(x) ((x) * 1000) /* kilobits/sec. */
|
|
#define IF_Mbps(x) (IF_Kbps((x) * 1000)) /* megabits/sec. */
|
|
#define IF_Gbps(x) (IF_Mbps((x) * 1000)) /* gigabits/sec. */
|
|
|
|
/* Capabilities that interfaces can advertise. */
|
|
#define IFCAP_TSOv4 0x00080 /* can do TCPv4 segmentation offload */
|
|
#define IFCAP_CSUM_IPv4_Rx 0x00100 /* can do IPv4 header checksums (Rx) */
|
|
#define IFCAP_CSUM_IPv4_Tx 0x00200 /* can do IPv4 header checksums (Tx) */
|
|
#define IFCAP_CSUM_TCPv4_Rx 0x00400 /* can do IPv4/TCP checksums (Rx) */
|
|
#define IFCAP_CSUM_TCPv4_Tx 0x00800 /* can do IPv4/TCP checksums (Tx) */
|
|
#define IFCAP_CSUM_UDPv4_Rx 0x01000 /* can do IPv4/UDP checksums (Rx) */
|
|
#define IFCAP_CSUM_UDPv4_Tx 0x02000 /* can do IPv4/UDP checksums (Tx) */
|
|
#define IFCAP_CSUM_TCPv6_Rx 0x04000 /* can do IPv6/TCP checksums (Rx) */
|
|
#define IFCAP_CSUM_TCPv6_Tx 0x08000 /* can do IPv6/TCP checksums (Tx) */
|
|
#define IFCAP_CSUM_UDPv6_Rx 0x10000 /* can do IPv6/UDP checksums (Rx) */
|
|
#define IFCAP_CSUM_UDPv6_Tx 0x20000 /* can do IPv6/UDP checksums (Tx) */
|
|
|
|
#define IFCAPBITS \
|
|
"\020" \
|
|
"\10TSO4" \
|
|
"\11IP4CSUM_Rx" \
|
|
"\12IP4CSUM_Tx" \
|
|
"\13TCP4CSUM_Rx" \
|
|
"\14TCP4CSUM_Tx" \
|
|
"\15UDP4CSUM_Rx" \
|
|
"\16UDP4CSUM_Tx" \
|
|
"\17TCP6CSUM_Rx" \
|
|
"\20TCP6CSUM_Tx" \
|
|
"\21UDP6CSUM_Rx" \
|
|
"\22UDP6CSUM_Tx"
|
|
|
|
/*
|
|
* 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 splnet().
|
|
*/
|
|
#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 IF_POLL(ifq, m) ((m) = (ifq)->ifq_head)
|
|
#define IF_PURGE(ifq) \
|
|
do { \
|
|
struct mbuf *__m0; \
|
|
\
|
|
for (;;) { \
|
|
IF_DEQUEUE((ifq), __m0); \
|
|
if (__m0 == NULL) \
|
|
break; \
|
|
else \
|
|
m_freem(__m0); \
|
|
} \
|
|
} while (/*CONSTCOND*/ 0)
|
|
#define IF_IS_EMPTY(ifq) ((ifq)->ifq_len == 0)
|
|
|
|
#ifndef IFQ_MAXLEN
|
|
#define IFQ_MAXLEN 256
|
|
#endif
|
|
#define IFNET_SLOWHZ 1 /* granularity is 1 second */
|
|
|
|
/*
|
|
* Structure defining statistics and other data kept regarding an address
|
|
* on a network interface.
|
|
*/
|
|
struct ifaddr_data {
|
|
int64_t ifad_inbytes;
|
|
int64_t ifad_outbytes;
|
|
};
|
|
|
|
/*
|
|
* 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 */
|
|
struct ifaddr_data ifa_data; /* statistics on the address */
|
|
void (*ifa_rtrequest) /* check or clean routes (+ or -)'d */
|
|
__P((int, struct rtentry *, struct rt_addrinfo *));
|
|
u_int ifa_flags; /* mostly rt_flags for cloning */
|
|
int ifa_refcnt; /* count of references */
|
|
int ifa_metric; /* cost of going out this interface */
|
|
};
|
|
#define IFA_ROUTE RTF_UP /* 0x01 *//* 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 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 */
|
|
};
|
|
|
|
#if defined(_KERNEL) && defined(COMPAT_14)
|
|
/* pre-1.5 if_msghdr (ifm_data changed) */
|
|
struct if_msghdr14 {
|
|
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_data14 ifm_data; /* statistics and other data about if */
|
|
};
|
|
#endif /* _KERNEL && COMPAT_14 */
|
|
|
|
/*
|
|
* 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 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 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 */
|
|
|
|
/*
|
|
* 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_broadaddr;
|
|
short ifru_flags;
|
|
int ifru_metric;
|
|
int ifru_mtu;
|
|
int ifru_dlt;
|
|
u_int ifru_value;
|
|
caddr_t ifru_data;
|
|
struct {
|
|
uint32_t b_buflen;
|
|
void *b_buf;
|
|
} ifru_b;
|
|
} 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_dlt ifr_ifru.ifru_dlt /* data link type (DLT_*) */
|
|
#define ifr_value ifr_ifru.ifru_value /* generic value */
|
|
#define ifr_media ifr_ifru.ifru_metric /* media options (overload) */
|
|
#define ifr_data ifr_ifru.ifru_data /* for use by interface
|
|
* XXX deprecated
|
|
*/
|
|
#define ifr_buf ifr_ifru.ifru_b.b_buf /* new interface ioctls */
|
|
#define ifr_buflen ifr_ifru.ifru_b.b_buflen
|
|
};
|
|
|
|
struct ifcapreq {
|
|
char ifcr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
|
|
uint64_t ifcr_capabilities; /* supported capabiliites */
|
|
uint64_t ifcr_capenable; /* capabilities enabled */
|
|
};
|
|
|
|
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 ifdatareq {
|
|
char ifdr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
|
|
struct if_data ifdr_data;
|
|
};
|
|
|
|
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 */
|
|
};
|
|
|
|
|
|
struct ifdrv {
|
|
char ifd_name[IFNAMSIZ]; /* if name, e.g. "en0" */
|
|
unsigned long ifd_cmd;
|
|
size_t ifd_len;
|
|
void *ifd_data;
|
|
};
|
|
|
|
/*
|
|
* 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];
|
|
unsigned int flags;
|
|
#define IFLR_PREFIX 0x8000 /* in: prefix given out: kernel fills id */
|
|
unsigned int prefixlen; /* in/out */
|
|
struct sockaddr_storage addr; /* in/out */
|
|
struct sockaddr_storage dstaddr; /* out */
|
|
};
|
|
|
|
#include <net/if_arp.h>
|
|
|
|
#endif /* _NETBSD_SOURCE */
|
|
|
|
#ifdef _KERNEL
|
|
#ifdef IFAREF_DEBUG
|
|
#define IFAREF(ifa) \
|
|
do { \
|
|
printf("IFAREF: %s:%d %p -> %d\n", __FILE__, __LINE__, \
|
|
(ifa), ++(ifa)->ifa_refcnt); \
|
|
} while (/*CONSTCOND*/ 0)
|
|
|
|
#define IFAFREE(ifa) \
|
|
do { \
|
|
if ((ifa)->ifa_refcnt <= 0) \
|
|
panic("%s:%d: %p ifa_refcnt <= 0", __FILE__, \
|
|
__LINE__, (ifa)); \
|
|
printf("IFAFREE: %s:%d %p -> %d\n", __FILE__, __LINE__, \
|
|
(ifa), --(ifa)->ifa_refcnt); \
|
|
if ((ifa)->ifa_refcnt == 0) \
|
|
ifafree(ifa); \
|
|
} while (/*CONSTCOND*/ 0)
|
|
#else
|
|
#define IFAREF(ifa) (ifa)->ifa_refcnt++
|
|
|
|
#ifdef DIAGNOSTIC
|
|
#define IFAFREE(ifa) \
|
|
do { \
|
|
if ((ifa)->ifa_refcnt <= 0) \
|
|
panic("%s:%d: %p ifa_refcnt <= 0", __FILE__, \
|
|
__LINE__, (ifa)); \
|
|
if (--(ifa)->ifa_refcnt == 0) \
|
|
ifafree(ifa); \
|
|
} while (/*CONSTCOND*/ 0)
|
|
#else
|
|
#define IFAFREE(ifa) \
|
|
do { \
|
|
if (--(ifa)->ifa_refcnt == 0) \
|
|
ifafree(ifa); \
|
|
} while (/*CONSTCOND*/ 0)
|
|
#endif /* DIAGNOSTIC */
|
|
#endif /* IFAREF_DEBUG */
|
|
|
|
#ifdef ALTQ
|
|
#define ALTQ_DECL(x) x
|
|
#define ALTQ_COMMA ,
|
|
|
|
#define IFQ_ENQUEUE(ifq, m, pattr, err) \
|
|
do { \
|
|
if (ALTQ_IS_ENABLED((ifq))) \
|
|
ALTQ_ENQUEUE((ifq), (m), (pattr), (err)); \
|
|
else { \
|
|
if (IF_QFULL((ifq))) { \
|
|
m_freem((m)); \
|
|
(err) = ENOBUFS; \
|
|
} else { \
|
|
IF_ENQUEUE((ifq), (m)); \
|
|
(err) = 0; \
|
|
} \
|
|
} \
|
|
if ((err)) \
|
|
(ifq)->ifq_drops++; \
|
|
} while (/*CONSTCOND*/ 0)
|
|
|
|
#define IFQ_DEQUEUE(ifq, m) \
|
|
do { \
|
|
if (TBR_IS_ENABLED((ifq))) \
|
|
(m) = tbr_dequeue((ifq), ALTDQ_REMOVE); \
|
|
else if (ALTQ_IS_ENABLED((ifq))) \
|
|
ALTQ_DEQUEUE((ifq), (m)); \
|
|
else \
|
|
IF_DEQUEUE((ifq), (m)); \
|
|
} while (/*CONSTCOND*/ 0)
|
|
|
|
#define IFQ_POLL(ifq, m) \
|
|
do { \
|
|
if (TBR_IS_ENABLED((ifq))) \
|
|
(m) = tbr_dequeue((ifq), ALTDQ_POLL); \
|
|
else if (ALTQ_IS_ENABLED((ifq))) \
|
|
ALTQ_POLL((ifq), (m)); \
|
|
else \
|
|
IF_POLL((ifq), (m)); \
|
|
} while (/*CONSTCOND*/ 0)
|
|
|
|
#define IFQ_PURGE(ifq) \
|
|
do { \
|
|
if (ALTQ_IS_ENABLED((ifq))) \
|
|
ALTQ_PURGE((ifq)); \
|
|
else \
|
|
IF_PURGE((ifq)); \
|
|
} while (/*CONSTCOND*/ 0)
|
|
|
|
#define IFQ_SET_READY(ifq) \
|
|
do { \
|
|
(ifq)->altq_flags |= ALTQF_READY; \
|
|
} while (/*CONSTCOND*/ 0)
|
|
|
|
#define IFQ_CLASSIFY(ifq, m, af, pattr) \
|
|
do { \
|
|
if (ALTQ_IS_ENABLED((ifq))) { \
|
|
if (ALTQ_NEEDS_CLASSIFY((ifq))) \
|
|
(pattr)->pattr_class = (*(ifq)->altq_classify) \
|
|
((ifq)->altq_clfier, (m), (af)); \
|
|
(pattr)->pattr_af = (af); \
|
|
(pattr)->pattr_hdr = mtod((m), caddr_t); \
|
|
} \
|
|
} while (/*CONSTCOND*/ 0)
|
|
#else /* ! ALTQ */
|
|
#define ALTQ_DECL(x) /* nothing */
|
|
#define ALTQ_COMMA
|
|
|
|
#define IFQ_ENQUEUE(ifq, m, pattr, err) \
|
|
do { \
|
|
if (IF_QFULL((ifq))) { \
|
|
m_freem((m)); \
|
|
(err) = ENOBUFS; \
|
|
} else { \
|
|
IF_ENQUEUE((ifq), (m)); \
|
|
(err) = 0; \
|
|
} \
|
|
if ((err)) \
|
|
(ifq)->ifq_drops++; \
|
|
} while (/*CONSTCOND*/ 0)
|
|
|
|
#define IFQ_DEQUEUE(ifq, m) IF_DEQUEUE((ifq), (m))
|
|
|
|
#define IFQ_POLL(ifq, m) IF_POLL((ifq), (m))
|
|
|
|
#define IFQ_PURGE(ifq) IF_PURGE((ifq))
|
|
|
|
#define IFQ_SET_READY(ifq) /* nothing */
|
|
|
|
#define IFQ_CLASSIFY(ifq, m, af, pattr) /* nothing */
|
|
|
|
#endif /* ALTQ */
|
|
|
|
#define IFQ_IS_EMPTY(ifq) IF_IS_EMPTY((ifq))
|
|
#define IFQ_INC_LEN(ifq) ((ifq)->ifq_len++)
|
|
#define IFQ_DEC_LEN(ifq) (--(ifq)->ifq_len)
|
|
#define IFQ_INC_DROPS(ifq) ((ifq)->ifq_drops++)
|
|
#define IFQ_SET_MAXLEN(ifq, len) ((ifq)->ifq_maxlen = (len))
|
|
|
|
#include <sys/mallocvar.h>
|
|
MALLOC_DECLARE(M_IFADDR);
|
|
MALLOC_DECLARE(M_IFMADDR);
|
|
|
|
#define IFNET_FOREACH(ifp) TAILQ_FOREACH(ifp, &ifnet, if_list)
|
|
#define IFADDR_FOREACH(ifa, ifp) TAILQ_FOREACH(ifa, \
|
|
&(ifp)->if_addrlist, ifa_list)
|
|
|
|
extern struct ifnet_head ifnet;
|
|
extern struct ifnet **ifindex2ifnet;
|
|
extern struct ifnet *lo0ifp;
|
|
extern size_t if_indexlim;
|
|
|
|
char *ether_sprintf __P((const u_char *));
|
|
|
|
void if_alloc_sadl __P((struct ifnet *));
|
|
void if_free_sadl __P((struct ifnet *));
|
|
void if_attach __P((struct ifnet *));
|
|
void if_attachdomain __P((void));
|
|
void if_attachdomain1 __P((struct ifnet *));
|
|
void if_deactivate __P((struct ifnet *));
|
|
void if_detach __P((struct ifnet *));
|
|
void if_down __P((struct ifnet *));
|
|
void if_link_state_change(struct ifnet *, int);
|
|
void if_slowtimo __P((void *));
|
|
void if_up __P((struct ifnet *));
|
|
int ifconf __P((u_long, caddr_t));
|
|
void ifinit __P((void));
|
|
int ifioctl __P((struct socket *, u_long, caddr_t, struct proc *));
|
|
int ifpromisc __P((struct ifnet *, int));
|
|
struct ifnet *ifunit __P((const char *));
|
|
|
|
struct ifaddr *ifa_ifwithaddr __P((const struct sockaddr *));
|
|
struct ifaddr *ifa_ifwithaf __P((int));
|
|
struct ifaddr *ifa_ifwithdstaddr __P((const struct sockaddr *));
|
|
struct ifaddr *ifa_ifwithnet __P((const struct sockaddr *));
|
|
struct ifaddr *ifa_ifwithladdr __P((const struct sockaddr *));
|
|
struct ifaddr *ifa_ifwithroute __P((int, const struct sockaddr *,
|
|
const struct sockaddr *));
|
|
struct ifaddr *ifaof_ifpforaddr __P((const struct sockaddr *, struct ifnet *));
|
|
void ifafree __P((struct ifaddr *));
|
|
void link_rtrequest __P((int, struct rtentry *, struct rt_addrinfo *));
|
|
|
|
void if_clone_attach __P((struct if_clone *));
|
|
void if_clone_detach __P((struct if_clone *));
|
|
|
|
int if_clone_create __P((const char *));
|
|
int if_clone_destroy __P((const char *));
|
|
|
|
int ifq_enqueue(struct ifnet *, struct mbuf * ALTQ_COMMA
|
|
ALTQ_DECL(struct altq_pktattr *));
|
|
int ifq_enqueue2(struct ifnet *, struct ifqueue *, struct mbuf * ALTQ_COMMA
|
|
ALTQ_DECL(struct altq_pktattr *));
|
|
|
|
int loioctl __P((struct ifnet *, u_long, caddr_t));
|
|
void loopattach __P((int));
|
|
int looutput __P((struct ifnet *,
|
|
struct mbuf *, struct sockaddr *, struct rtentry *));
|
|
void lortrequest __P((int, struct rtentry *, struct rt_addrinfo *));
|
|
|
|
/*
|
|
* These are exported because they're an easy way to tell if
|
|
* an interface is going away without having to burn a flag.
|
|
*/
|
|
int if_nulloutput __P((struct ifnet *, struct mbuf *,
|
|
struct sockaddr *, struct rtentry *));
|
|
void if_nullinput __P((struct ifnet *, struct mbuf *));
|
|
void if_nullstart __P((struct ifnet *));
|
|
int if_nullioctl __P((struct ifnet *, u_long, caddr_t));
|
|
int if_nullinit __P((struct ifnet *));
|
|
void if_nullstop __P((struct ifnet *, int));
|
|
void if_nullwatchdog __P((struct ifnet *));
|
|
void if_nulldrain __P((struct ifnet *));
|
|
#else
|
|
struct if_nameindex {
|
|
unsigned int if_index; /* 1, 2, ... */
|
|
char *if_name; /* null terminated name: "le0", ... */
|
|
};
|
|
|
|
#include <sys/cdefs.h>
|
|
__BEGIN_DECLS
|
|
unsigned int if_nametoindex __P((const char *));
|
|
char * if_indextoname __P((unsigned int, char *));
|
|
struct if_nameindex * if_nameindex __P((void));
|
|
void if_freenameindex __P((struct if_nameindex *));
|
|
__END_DECLS
|
|
#endif /* _KERNEL */ /* XXX really ALTQ? */
|
|
|
|
#ifdef _KERNEL
|
|
/*
|
|
* ifq sysctl support
|
|
*/
|
|
int sysctl_ifq __P((int *name, u_int namelen, void *oldp,
|
|
size_t *oldlenp, void *newp, size_t newlen,
|
|
struct ifqueue *ifq));
|
|
/* symbolic names for terminal (per-protocol) CTL_IFQ_ nodes */
|
|
#define IFQCTL_LEN 1
|
|
#define IFQCTL_MAXLEN 2
|
|
#define IFQCTL_PEAK 3
|
|
#define IFQCTL_DROPS 4
|
|
#define IFQCTL_MAXID 5
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#ifdef _NETBSD_SOURCE
|
|
/*
|
|
* sysctl for ifq (per-protocol packet input queue variant of ifqueue)
|
|
*/
|
|
#define CTL_IFQ_NAMES { \
|
|
{ 0, 0 }, \
|
|
{ "len", CTLTYPE_INT }, \
|
|
{ "maxlen", CTLTYPE_INT }, \
|
|
{ "peak", CTLTYPE_INT }, \
|
|
{ "drops", CTLTYPE_INT }, \
|
|
}
|
|
#endif /* _NETBSD_SOURCE */
|
|
#endif /* !_NET_IF_H_ */
|