diff options
Diffstat (limited to 'newlib/libc/sys/linux/include/net/if.h')
| -rw-r--r-- | newlib/libc/sys/linux/include/net/if.h | 341 |
1 files changed, 341 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/include/net/if.h b/newlib/libc/sys/linux/include/net/if.h new file mode 100644 index 000000000..bf021e6f9 --- /dev/null +++ b/newlib/libc/sys/linux/include/net/if.h @@ -0,0 +1,341 @@ +/* + * 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 + * $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 <sys/queue.h> + +/* + * <net/if.h> does not depend on <sys/time.h> on most other systems. This + * helps userland compatibility. (struct timeval ifi_lastchange) + */ +#ifndef _KERNEL +#include <sys/time.h> +#endif + +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 */ +}; + +#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_SMART 0x20 /* interface manages own routes */ +#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_ALTPHYS IFF_LINK2 /* use alternate physical connection */ +#define IFF_MULTICAST 0x8000 /* supports multicast */ + +/* + * 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_SMART) + +/* 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 */ + +/* + * 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[2]; + short ifru_index; + int ifru_metric; + int ifru_mtu; + int ifru_phys; + int ifru_media; + caddr_t ifru_data; + int ifru_cap[2]; + } 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[0] /* flags */ +#define ifr_prevflags ifr_ifru.ifru_flags[1] /* flags */ +#define ifr_metric ifr_ifru.ifru_metric /* metric */ +#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ +#define ifr_phys ifr_ifru.ifru_phys /* physical wire */ +#define ifr_media ifr_ifru.ifru_media /* physical media */ +#define ifr_data ifr_ifru.ifru_data /* for use by interface */ +#define ifr_reqcap ifr_ifru.ifru_cap[0] /* requested capabilities */ +#define ifr_curcap ifr_ifru.ifru_cap[1] /* current capabilities */ +#define ifr_index ifr_ifru.ifru_index /* interface index */ +}; + +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 */ +}; + +#ifdef _KERNEL +#ifdef MALLOC_DECLARE +MALLOC_DECLARE(M_IFADDR); +MALLOC_DECLARE(M_IFMADDR); +#endif +#endif + +#ifndef _KERNEL +struct if_nameindex { + u_int if_index; /* 1, 2, ... */ + char *if_name; /* null terminated name: "le0", ... */ +}; + +__BEGIN_DECLS +u_int if_nametoindex(const char *); +char *if_indextoname(u_int, char *); +struct if_nameindex *if_nameindex(void); +void if_freenameindex(struct if_nameindex *); +__END_DECLS +#endif + +#ifdef _KERNEL +struct thread; + +/* XXX - this should go away soon. */ +#include <net/if_var.h> +#endif + +#endif /* !_NET_IF_H_ */ |