/* * Copyright (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved. */ /* * Copyright (c) 1982, 1986 Regents of the University of California. * All rights reserved. The Berkeley software License Agreement * specifies the terms and conditions for redistribution. */ #ifndef _NET_IF_H #define _NET_IF_H /* if.h 1.26 90/05/29 SMI; from UCB 7.1 6/4/86 */ #include <sys/feature_tests.h> #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) #include <sys/socket.h> #include <netinet/in.h> #if defined(_LP64) #include <sys/types32.h> #endif #endif #ifdef __cplusplus extern "C" { #endif /* * 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) * 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 */ #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) /* * Structure defining a queue for a network interface. * * (Would like to call this struct ``if'', but C isn't PL/1.) */ struct ifnet { char *if_name; /* name, e.g. ``en'' or ``lo'' */ short if_unit; /* sub-unit for lower level driver */ short if_mtu; /* maximum transmission unit */ short if_flags; /* up/down, broadcast, etc. */ short if_timer; /* time 'til if_watchdog called */ ushort_t if_promisc; /* net # of requests for promisc mode */ int if_metric; /* routing metric (external only) */ struct ifaddr *if_addrlist; /* linked list of addresses per if */ struct ifqueue { struct mbuf *ifq_head; struct mbuf *ifq_tail; int ifq_len; int ifq_maxlen; int ifq_drops; } if_snd; /* output queue */ /* procedure handles */ int (*if_init)(); /* init routine */ int (*if_output)(); /* output routine */ int (*if_ioctl)(); /* ioctl routine */ int (*if_reset)(); /* bus reset routine */ int (*if_watchdog)(); /* timer routine */ /* generic interface statistics */ int if_ipackets; /* packets received on interface */ int if_ierrors; /* input errors on interface */ int if_opackets; /* packets sent on interface */ int if_oerrors; /* output errors on interface */ int if_collisions; /* collisions on csma interfaces */ /* end statistics */ struct ifnet *if_next; struct ifnet *if_upper; /* next layer up */ struct ifnet *if_lower; /* next layer down */ int (*if_input)(); /* input routine */ int (*if_ctlin)(); /* control input routine */ int (*if_ctlout)(); /* control output routine */ struct map *if_memmap; /* rmap for interface specific memory */ }; /* * NOTE : These flags are not directly used within IP. * ip_if.h has definitions derived from this which is used within IP. * If you define a flag here, you need to define one in ip_if.h before * using the new flag in IP. Don't use these flags directly in IP. */ #define IFF_UP 0x0000000001 /* address is up */ #define IFF_BROADCAST 0x0000000002 /* broadcast address valid */ #define IFF_DEBUG 0x0000000004 /* turn on debugging */ #define IFF_LOOPBACK 0x0000000008 /* is a loopback net */ #define IFF_POINTOPOINT 0x0000000010 /* interface is point-to-point link */ #define IFF_NOTRAILERS 0x0000000020 /* avoid use of trailers */ #define IFF_RUNNING 0x0000000040 /* resources allocated */ #define IFF_NOARP 0x0000000080 /* no address resolution protocol */ #define IFF_PROMISC 0x0000000100 /* receive all packets */ #define IFF_ALLMULTI 0x0000000200 /* receive all multicast packets */ #define IFF_INTELLIGENT 0x0000000400 /* protocol code on board */ /* * The IFF_MULTICAST flag indicates that the network can support the * transmission and reception of higher-level (e.g., IP) multicast packets. * It is independent of hardware support for multicasting; for example, * point-to-point links or pure broadcast networks may well support * higher-level multicasts. */ #define IFF_MULTICAST 0x0000000800 /* supports multicast */ #define IFF_MULTI_BCAST 0x0000001000 /* multicast using broadcast address */ #define IFF_UNNUMBERED 0x0000002000 /* non-unique address */ #define IFF_DHCPRUNNING 0x0000004000 /* DHCP controls this interface */ #define IFF_PRIVATE 0x0000008000 /* do not advertise */ /* * The following flags can't be grabbed or altered by SIOC[GS]IFFLAGS. * Should use SIOC[GS]LIFFLAGS which has a larger flags field. */ #define IFF_NOXMIT 0x0000010000 /* Do not transmit packets */ #define IFF_NOLOCAL 0x0000020000 /* No address - just on-link subnet */ #define IFF_DEPRECATED 0x0000040000 /* Address is deprecated */ #define IFF_ADDRCONF 0x0000080000 /* address from stateless addrconf */ #define IFF_ROUTER 0x0000100000 /* router on this interface */ #define IFF_NONUD 0x0000200000 /* No NUD on this interface */ #define IFF_ANYCAST 0x0000400000 /* Anycast address */ #define IFF_NORTEXCH 0x0000800000 /* Do not exchange routing info */ #define IFF_IPV4 0x0001000000 /* IPv4 interface */ #define IFF_IPV6 0x0002000000 /* IPv6 interface */ #define IFF_NOACCEPT 0x0004000000 /* no-accept mode VRRP ill */ #define IFF_NOFAILOVER 0x0008000000 /* in.mpathd(8) test address */ #define IFF_FAILED 0x0010000000 /* Interface has failed */ #define IFF_STANDBY 0x0020000000 /* Interface is a hot-spare */ #define IFF_INACTIVE 0x0040000000 /* Functioning but not used for data */ #define IFF_OFFLINE 0x0080000000 /* Interface is offline */ /* * The IFF_XRESOLV flag is an evolving interface and is subject * to change without notice. */ #define IFF_XRESOLV 0x0100000000ll /* IPv6 external resolver */ #define IFF_COS_ENABLED 0x0200000000ll /* If interface supports CoS marking */ #define IFF_PREFERRED 0x0400000000ll /* Prefer as source address */ #define IFF_TEMPORARY 0x0800000000ll /* RFC3041 */ #define IFF_FIXEDMTU 0x1000000000ll /* MTU manually set with SIOCSLIFMTU */ #define IFF_VIRTUAL 0x2000000000ll /* Does not send or receive packets */ #define IFF_DUPLICATE 0x4000000000ll /* Local address already in use */ #define IFF_IPMP 0x8000000000ll /* IPMP IP interface */ #define IFF_VRRP 0x10000000000ll /* Managed by VRRP */ #define IFF_NOLINKLOCAL 0x20000000000ll /* No default linklocal */ #define IFF_L3PROTECT 0x40000000000ll /* Layer-3 protection enforced */ /* flags that cannot be changed by userland on any interface */ #define IFF_CANTCHANGE \ (IFF_BROADCAST | IFF_POINTOPOINT | IFF_RUNNING | IFF_PROMISC | \ IFF_MULTICAST | IFF_MULTI_BCAST | IFF_UNNUMBERED | IFF_IPV4 | \ IFF_IPV6 | IFF_IPMP | IFF_FIXEDMTU | IFF_VIRTUAL | \ IFF_LOOPBACK | IFF_ALLMULTI | IFF_DUPLICATE | IFF_COS_ENABLED | \ IFF_VRRP | IFF_NOLINKLOCAL | IFF_L3PROTECT) /* flags that cannot be changed by userland on an IPMP interface */ #define IFF_IPMP_CANTCHANGE IFF_FAILED /* flags that can never be set on an IPMP interface */ #define IFF_IPMP_INVALID (IFF_STANDBY | IFF_INACTIVE | IFF_OFFLINE | \ IFF_NOFAILOVER | IFF_NOARP | IFF_NONUD | IFF_XRESOLV | IFF_NOACCEPT) /* * 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_act = 0; \ if ((ifq)->ifq_tail == 0) \ (ifq)->ifq_head = m; \ else \ (ifq)->ifq_tail->m_act = m; \ (ifq)->ifq_tail = m; \ (ifq)->ifq_len++; \ } #define IF_PREPEND(ifq, m) { \ (m)->m_act = (ifq)->ifq_head; \ if ((ifq)->ifq_tail == 0) \ (ifq)->ifq_tail = (m); \ (ifq)->ifq_head = (m); \ (ifq)->ifq_len++; \ } /* * Packets destined for level-1 protocol input routines * have a pointer to the receiving interface prepended to the data. * IF_DEQUEUEIF extracts and returns this pointer when dequeuing the packet. * IF_ADJ should be used otherwise to adjust for its presence. */ #define IF_ADJ(m) { \ (m)->m_off += sizeof (struct ifnet *); \ (m)->m_len -= sizeof (struct ifnet *); \ if ((m)->m_len == 0) { \ struct mbuf *n; \ MFREE((m), n); \ (m) = n; \ } \ } #define IF_DEQUEUEIF(ifq, m, ifp) { \ (m) = (ifq)->ifq_head; \ if (m) { \ if (((ifq)->ifq_head = (m)->m_act) == 0) \ (ifq)->ifq_tail = 0; \ (m)->m_act = 0; \ (ifq)->ifq_len--; \ (ifp) = *(mtod((m), struct ifnet **)); \ IF_ADJ(m); \ } \ } #define IF_DEQUEUE(ifq, m) { \ (m) = (ifq)->ifq_head; \ if (m) { \ if (((ifq)->ifq_head = (m)->m_act) == 0) \ (ifq)->ifq_tail = 0; \ (m)->m_act = 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 */ union { struct sockaddr ifu_broadaddr; struct sockaddr ifu_dstaddr; } ifa_ifu; #define ifa_broadaddr ifa_ifu.ifu_broadaddr /* broadcast address */ #define ifa_dstaddr ifa_ifu.ifu_dstaddr /* other end of p-to-p link */ struct ifnet *ifa_ifp; /* back-pointer to interface */ struct ifaddr *ifa_next; /* next address for interface */ }; /* * For SIOCLIF*ND ioctls. * * The lnr_state_* fields use the ND_* neighbor reachability states. * The 3 different fields are for use with SIOCLIFSETND to cover the cases * when * A new entry is created * The entry already exists and the link-layer address is the same * The entry already exists and the link-layer address differs * * Use ND_UNCHANGED to not change any state. */ #define ND_MAX_HDW_LEN 64 typedef struct lif_nd_req { struct sockaddr_storage lnr_addr; uint8_t lnr_state_create; /* When creating */ uint8_t lnr_state_same_lla; /* Update same addr */ uint8_t lnr_state_diff_lla; /* Update w/ diff. */ int lnr_hdw_len; int lnr_flags; /* See below */ /* padding because ia32 "long long"s are only 4-byte aligned. */ int lnr_pad0; char lnr_hdw_addr[ND_MAX_HDW_LEN]; } lif_nd_req_t; /* * Neighbor reachability states * Used with SIOCLIF*ND ioctls. */ #define ND_UNCHANGED 0 /* For ioctls that don't modify state */ #define ND_INCOMPLETE 1 /* addr resolution in progress */ #define ND_REACHABLE 2 /* have recently been reachable */ #define ND_STALE 3 /* may be unreachable, don't do anything */ #define ND_DELAY 4 /* wait for upper layer hint */ #define ND_PROBE 5 /* send probes */ #define ND_UNREACHABLE 6 /* delete this route */ #define ND_INITIAL 7 /* ipv4: arp resolution has not been sent yet */ #define ND_STATE_VALID_MIN 0 #define ND_STATE_VALID_MAX 7 /* * lnr_flags value of lif_nd_req. * Used with SIOCLIF*ND ioctls. */ #define NDF_ISROUTER_ON 0x1 #define NDF_ISROUTER_OFF 0x2 #define NDF_ANYCAST_ON 0x4 #define NDF_ANYCAST_OFF 0x8 #define NDF_PROXY_ON 0x10 #define NDF_PROXY_OFF 0x20 /* * the NDF_STATIC entry ensures that an NCE will not be deleted, and is * used by non-ON applications like IPv6 test suites. */ #define NDF_STATIC 0x40 /* For SIOC[GS]LIFLNKINFO */ typedef struct lif_ifinfo_req { uint8_t lir_maxhops; uint32_t lir_reachtime; /* Reachable time in msec */ uint32_t lir_reachretrans; /* Retransmission timer msec */ uint32_t lir_maxmtu; } lif_ifinfo_req_t; #endif /* !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) */ /* * Maximum lengths of interface name and IPMP group name; these are the same * for historical reasons. Note that the actual maximum length of a name is * one byte less than these constants since the kernel always sets the final * byte of lifr_name and lifr_groupname to NUL. */ #define _LIFNAMSIZ 32 #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) #define LIFNAMSIZ _LIFNAMSIZ #define LIFGRNAMSIZ LIFNAMSIZ /* * 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. * Note: This data structure uses 64bit type uint64_t which is not * a valid type for strict ANSI/ISO C compilation for ILP32. * Applications with ioctls using this structure that insist on * building with strict ANSI/ISO C (-Xc) will need to be LP64. */ #if defined(_INT64_TYPE) struct lifreq { char lifr_name[LIFNAMSIZ]; /* if name, e.g. "en0" */ union { int lifru_addrlen; /* for subnet/token etc */ uint_t lifru_ppa; /* SIOCSLIFNAME */ } lifr_lifru1; #define lifr_addrlen lifr_lifru1.lifru_addrlen #define lifr_ppa lifr_lifru1.lifru_ppa /* Driver's ppa */ uint_t lifr_type; /* IFT_ETHER, ... */ union { struct sockaddr_storage lifru_addr; struct sockaddr_storage lifru_dstaddr; struct sockaddr_storage lifru_broadaddr; struct sockaddr_storage lifru_token; /* With lifr_addrlen */ struct sockaddr_storage lifru_subnet; /* With lifr_addrlen */ int lifru_index; /* interface index */ uint64_t lifru_flags; /* Flags for SIOC?LIFFLAGS */ int lifru_metric; uint_t lifru_mtu; int lif_muxid[2]; /* mux id's for arp and ip */ struct lif_nd_req lifru_nd_req; /* SIOCLIF*ND */ struct lif_ifinfo_req lifru_ifinfo_req; char lifru_groupname[LIFGRNAMSIZ]; /* SIOC[GS]LIFGROUPNAME */ char lifru_binding[LIFNAMSIZ]; /* SIOCGLIFBINDING */ zoneid_t lifru_zoneid; /* SIOC[GS]LIFZONE */ uint_t lifru_dadstate; /* SIOCGLIFDADSTATE */ } lifr_lifru; #define lifr_addr lifr_lifru.lifru_addr /* address */ #define lifr_dstaddr lifr_lifru.lifru_dstaddr /* other end of p-to-p link */ #define lifr_broadaddr lifr_lifru.lifru_broadaddr /* broadcast address */ #define lifr_token lifr_lifru.lifru_token /* address token */ #define lifr_subnet lifr_lifru.lifru_subnet /* subnet prefix */ #define lifr_index lifr_lifru.lifru_index /* interface index */ #define lifr_flags lifr_lifru.lifru_flags /* flags */ #define lifr_metric lifr_lifru.lifru_metric /* metric */ #define lifr_mtu lifr_lifru.lifru_mtu /* mtu */ #define lifr_ip_muxid lifr_lifru.lif_muxid[0] #define lifr_arp_muxid lifr_lifru.lif_muxid[1] #define lifr_nd lifr_lifru.lifru_nd_req /* SIOCLIF*ND */ #define lifr_ifinfo lifr_lifru.lifru_ifinfo_req /* SIOC[GS]LIFLNKINFO */ #define lifr_groupname lifr_lifru.lifru_groupname #define lifr_binding lifr_lifru.lifru_binding #define lifr_zoneid lifr_lifru.lifru_zoneid #define lifr_dadstate lifr_lifru.lifru_dadstate }; #endif /* defined(_INT64_TYPE) */ /* * Argument structure for SIOCT* address testing ioctls. */ struct sioc_addrreq { struct sockaddr_storage sa_addr; /* Address to test */ int sa_res; /* Result - 0/1 */ int sa_pad; }; /* * Argument structure used by mrouted to get src-grp pkt counts using * SIOCGETLSGCNT. See <netinet/ip_mroute.h>. */ struct sioc_lsg_req { struct sockaddr_storage slr_src; struct sockaddr_storage slr_grp; uint_t slr_pktcnt; uint_t slr_bytecnt; uint_t slr_wrong_if; uint_t slr_pad; }; /* Argument structure for SIOCGLIFDADSTATE ioctl */ typedef enum { DAD_IN_PROGRESS = 0x1, DAD_DONE = 0x2 } glif_dad_state_t; /* * OBSOLETE: Replaced by struct lifreq. Supported for compatibility. * * 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 { #define IFNAMSIZ 16 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */ union { struct sockaddr ifru_addr; struct sockaddr ifru_dstaddr; char ifru_oname[IFNAMSIZ]; /* other if name */ struct sockaddr ifru_broadaddr; int ifru_index; /* interface index */ uint_t ifru_mtu; short ifru_flags; int ifru_metric; char ifru_data[1]; /* interface dependent data */ char ifru_enaddr[6]; int if_muxid[2]; /* mux id's for arp and ip */ /* Struct for flags/ppa */ struct ifr_ppaflags { short ifrup_flags; /* Space of ifru_flags. */ short ifrup_filler; uint_t ifrup_ppa; } ifru_ppaflags; /* Struct for FDDI ioctl's */ struct ifr_dnld_reqs { uint32_t v_addr; uint32_t m_addr; uint32_t ex_addr; uint32_t size; } ifru_dnld_req; /* Struct for FDDI stats */ struct ifr_fddi_stats { uint32_t stat_size; uint32_t fddi_stats; } ifru_fddi_stat; struct ifr_netmapents { uint32_t map_ent_size, /* size of netmap structure */ entry_number; /* index into netmap list */ uint32_t fddi_map_ent; /* pointer to user structure */ } ifru_netmapent; /* Field for generic ioctl for fddi */ struct ifr_fddi_gen_struct { uint32_t ifru_fddi_gioctl; /* field for gen ioctl */ uint32_t ifru_fddi_gaddr; /* Generic ptr to a field */ } ifru_fddi_gstruct; } 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_oname ifr_ifru.ifru_oname /* other if name */ #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_data ifr_ifru.ifru_data /* for use by interface */ #define ifr_enaddr ifr_ifru.ifru_enaddr /* ethernet address */ #define ifr_index ifr_ifru.ifru_index /* interface index */ #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */ /* For setting ppa */ #define ifr_ppa ifr_ifru.ifru_ppaflags.ifrup_ppa /* FDDI specific */ #define ifr_dnld_req ifr_ifru.ifru_dnld_req #define ifr_fddi_stat ifr_ifru.ifru_fddi_stat #define ifr_fddi_netmap ifr_ifru.ifru_netmapent /* FDDI network map entries */ #define ifr_fddi_gstruct ifr_ifru.ifru_fddi_gstruct #define ifr_ip_muxid ifr_ifru.if_muxid[0] #define ifr_arp_muxid ifr_ifru.if_muxid[1] }; /* Used by SIOCGLIFNUM. Uses same flags as in struct lifconf */ struct lifnum { sa_family_t lifn_family; int lifn_flags; /* request specific interfaces */ int lifn_count; /* Result */ }; /* * Structure used in SIOCGLIFCONF request. * Used to retrieve interface configuration * for machine (useful for programs which * must know all networks accessible) for a given address family. * Using AF_UNSPEC will retrieve all address families. */ struct lifconf { sa_family_t lifc_family; int lifc_flags; /* request specific interfaces */ int lifc_len; /* size of associated buffer */ union { caddr_t lifcu_buf; struct lifreq *lifcu_req; } lifc_lifcu; #define lifc_buf lifc_lifcu.lifcu_buf /* buffer address */ #define lifc_req lifc_lifcu.lifcu_req /* array of structures returned */ }; /* * Structure used in SIOCGLIFSRCOF to get the interface * configuration list for those interfaces that use an address * hosted on the interface (set in lifs_ifindex), as the source * address. */ struct lifsrcof { uint_t lifs_ifindex; /* interface of interest */ size_t lifs_maxlen; /* size of buffer: input */ size_t lifs_len; /* size of buffer: output */ union { caddr_t lifsu_buf; struct lifreq *lifsu_req; } lifs_lifsu; #define lifs_buf lifs_lifsu.lifsu_buf /* buffer address */ #define lifs_req lifs_lifsu.lifsu_req /* array returned */ }; /* Flags */ #define LIFC_NOXMIT 0x01 /* Include IFF_NOXMIT interfaces */ #define LIFC_EXTERNAL_SOURCE 0x02 /* Exclude the interfaces which can't */ /* be used to communicate outside the */ /* node (exclude interfaces which are */ /* IFF_NOXMIT, IFF_NOLOCAL, */ /* IFF_LOOPBACK, IFF_DEPRECATED, or */ /* not IFF_UP). Has priority over */ /* LIFC_NOXMIT. */ #define LIFC_TEMPORARY 0x04 /* Include IFF_TEMPORARY interfaces */ #define LIFC_ALLZONES 0x08 /* Include all zones */ /* (must be issued from global zone) */ #define LIFC_UNDER_IPMP 0x10 /* Include underlying IPMP interfaces */ #define LIFC_ENABLED 0x20 /* Include only IFF_UP interfaces */ #if defined(_SYSCALL32) struct lifconf32 { sa_family_t lifc_family; int lifc_flags; /* request specific interfaces */ int32_t lifc_len; /* size of associated buffer */ union { caddr32_t lifcu_buf; caddr32_t lifcu_req; } lifc_lifcu; }; struct lifsrcof32 { uint_t lifs_ifindex; /* interface of interest */ size32_t lifs_maxlen; /* size of buffer: input */ size32_t lifs_len; /* size of buffer: output */ union { caddr32_t lifsu_buf; caddr32_t lifsu_req; } lifs_lifsu; }; #endif /* _SYSCALL32 */ /* * IPMP group information, for use with SIOCGLIFGROUPINFO. */ typedef struct lifgroupinfo { char gi_grname[LIFGRNAMSIZ]; /* group name (set by caller) */ char gi_grifname[LIFNAMSIZ]; /* IPMP meta-interface name */ char gi_m4ifname[LIFNAMSIZ]; /* v4 mcast interface name */ char gi_m6ifname[LIFNAMSIZ]; /* v6 mcast interface name */ char gi_bcifname[LIFNAMSIZ]; /* v4 bcast interface name */ boolean_t gi_v4; /* group is plumbed for v4 */ boolean_t gi_v6; /* group is plumbed for v6 */ uint_t gi_nv4; /* # of underlying v4 if's */ uint_t gi_nv6; /* # of underlying v6 if's */ uint_t gi_mactype; /* DLPI mac type of group */ } lifgroupinfo_t; /* * OBSOLETE: 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 */ }; #if defined(_SYSCALL32) struct ifconf32 { int32_t ifc_len; /* size of associated buffer */ union { caddr32_t ifcu_buf; caddr32_t ifcu_req; } ifc_ifcu; }; #endif /* _SYSCALL32 */ typedef struct if_data { /* generic interface information */ uchar_t ifi_type; /* ethernet, tokenring, etc */ uchar_t ifi_addrlen; /* media address length */ uchar_t ifi_hdrlen; /* media header length */ uint_t ifi_mtu; /* maximum transmission unit */ uint_t ifi_metric; /* routing metric (external only) */ uint_t ifi_baudrate; /* linespeed */ /* volatile statistics */ uint_t ifi_ipackets; /* packets received on interface */ uint_t ifi_ierrors; /* input errors on interface */ uint_t ifi_opackets; /* packets sent on interface */ uint_t ifi_oerrors; /* output errors on interface */ uint_t ifi_collisions; /* collisions on csma interfaces */ uint_t ifi_ibytes; /* total number of octets received */ uint_t ifi_obytes; /* total number of octets sent */ uint_t ifi_imcasts; /* packets received via multicast */ uint_t ifi_omcasts; /* packets sent via multicast */ uint_t ifi_iqdrops; /* dropped on input, this interface */ uint_t ifi_noproto; /* destined for unsupported protocol */ #if defined(_LP64) struct timeval32 ifi_lastchange; /* last updated */ #else struct timeval ifi_lastchange; /* last updated */ #endif } if_data_t; /* * Message format for use in obtaining information about interfaces * from the routing socket */ typedef struct if_msghdr { ushort_t ifm_msglen; /* to skip over non-understood messages */ uchar_t ifm_version; /* future binary compatibility */ uchar_t ifm_type; /* message type */ int ifm_addrs; /* like rtm_addrs */ int ifm_flags; /* value of if_flags */ ushort_t ifm_index; /* index for associated ifp */ struct if_data ifm_data; /* statistics and other data about if */ } if_msghdr_t; /* * Message format for use in obtaining information about interface addresses * from the routing socket */ typedef struct ifa_msghdr { ushort_t ifam_msglen; /* to skip over non-understood messages */ uchar_t ifam_version; /* future binary compatibility */ uchar_t ifam_type; /* message type */ int ifam_addrs; /* like rtm_addrs */ int ifam_flags; /* route flags */ ushort_t ifam_index; /* index for associated ifp */ int ifam_metric; /* value of ipif_metric */ } ifa_msghdr_t; #endif /* !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) */ /* * The if_nameindex structure holds the interface index value about * a single interface. An array of this structure is used to return * all interfaces and indexes. */ struct if_nameindex { unsigned if_index; /* positive interface index */ char *if_name; /* if name, e.g. "en0" */ }; /* Interface index identification API definitions */ extern unsigned if_nametoindex(const char *); extern char *if_indextoname(unsigned, char *); extern struct if_nameindex *if_nameindex(void); extern void if_freenameindex(struct if_nameindex *); #define IF_NAMESIZE _LIFNAMSIZ /* * If changing IF_MAX_INDEX to a value greater than UINT16_MAX, check if * struct sockaddr_dl needs to be modified as the interface index is placed * in this structure by the kernel. */ #define IF_INDEX_MAX UINT16_MAX #ifdef __cplusplus } #endif #endif /* _NET_IF_H */
