common/inet/ip_if.h

	ip_if.h revision 48de1bd24caf1a4f9ff4414ba002d33c55cf37e2
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */
/* Copyright (c) 1990 Mentat Inc. */

#ifndef _INET_IP_IF_H
#define _INET_IP_IF_H

#pragma ident   "%Z%%M% %I% %E% SMI"

#include <net/route.h>

#ifdef  __cplusplus
extern "C" {
#endif

#define PREFIX_INFINITY 0xffffffffUL
#define IP_MAX_HW_LEN   40

#define IP_LOOPBACK_MTU (8*1024)

/* DLPI SAPs are in host byte order for all systems */
#define IP_DL_SAP   0x0800
#define IP6_DL_SAP  0x86dd

#ifdef  _KERNEL
/*
 * Interface flags actually represent the state/properties of 3 different
 * abstractions of interfaces in IP. Interface flags are set using
 * SIOCS[L]IFFLAGS ioctl. The three abstractions are :
 *
 * 1) Physical interface (phyint) : There is one phyint allocated common
 *    to both IPv4 and IPv6 physical interface instance.
 *
 * 2) Physical interface instance (ill) : This encompasses all the state
 *    that is common across all IP addresses assigned to a physical
 *    interface but different between the IPv4 and IPv6 instance.
 *
 * 3) Logical interface (ipif) : This has state about a single IP address.
 *
 * Values for the various states are derived from the same name space
 * as applications querying the state using SIOCGIFFLAGS/SIOCGLIFFLAGS
 * see only one state returned in lifr_flags which is a union of all
 * the above states/properties. Thus deriving the values from the common
 * name space makes implementation easier. All these values are stored in
 * uint64_t and any other structure/code using these flags should use
 * uint64_ts.
 *
 * As we maintain the interface flags in 3 different flags namely
 * phyint_flags, ill_flags, ipif_flags we define the following flag values
 * to be used within the kernel to reduce potential errors. The ones
 * starting with PHYI_ are supposed to be used with phyint_flags, the ones
 * starting with ILLF_ are supposed to be used with ill_flags and the ones
 * starting with IPIF_ are supposed to be used with ipif_flags. If you see
 * any code with a mismatch i.e phyint_flags & IPIF_UP - it is wrong. Only
 * PHYI_XXX can be used with phyint_flags.
 *
 * NOTE : For EVERY FLAG in if.h, there should be a corresponding value
 * defined HERE and this is the one that should be USED within IP. We
 * use IFF_ flags within IP only when we examine lifr_flags.
 */
#define IFF_PHYINT_FLAGS    (IFF_LOOPBACK|IFF_RUNNING|IFF_PROMISC| \
    IFF_ALLMULTI|IFF_INTELLIGENT|IFF_MULTI_BCAST|IFF_FAILED|IFF_STANDBY| \
    IFF_INACTIVE|IFF_OFFLINE|IFF_VIRTUAL)

#define IFF_PHYINTINST_FLAGS    (IFF_DEBUG|IFF_NOTRAILERS|IFF_NOARP| \
    IFF_MULTICAST|IFF_ROUTER|IFF_NONUD|IFF_NORTEXCH|IFF_IPV4|IFF_IPV6| \
    IFF_XRESOLV|IFF_COS_ENABLED)

#define IFF_LOGINT_FLAGS    (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT| \
    IFF_UNNUMBERED|IFF_DHCPRUNNING|IFF_PRIVATE|IFF_NOXMIT|IFF_NOLOCAL| \
    IFF_DEPRECATED|IFF_ADDRCONF|IFF_ANYCAST|IFF_MIPRUNNING|IFF_NOFAILOVER| \
    IFF_PREFERRED|IFF_TEMPORARY|IFF_FIXEDMTU|IFF_DUPLICATE)

#define IPIF_REPL_CHECK(to_ipif, failback_cmd)              \
    (((to_ipif)->ipif_replace_zero) || ((failback_cmd) &&       \
    !(to_ipif)->ipif_isv6 && !((to_ipif)->ipif_flags & IPIF_UP) &&  \
    (to_ipif)->ipif_lcl_addr == INADDR_ANY))

#define PHYI_LOOPBACK       IFF_LOOPBACK    /* is a loopback net */
#define PHYI_RUNNING        IFF_RUNNING /* resources allocated */
#define PHYI_PROMISC        IFF_PROMISC /* receive all packets */
#define PHYI_ALLMULTI       IFF_ALLMULTI    /* receive all multi packets */
#define PHYI_INTELLIGENT    IFF_INTELLIGENT /* protocol code on board */
#define PHYI_MULTI_BCAST    IFF_MULTI_BCAST /* multicast using broadcast */
#define PHYI_FAILED     IFF_FAILED  /* NIC has failed */
#define PHYI_STANDBY        IFF_STANDBY /* Standby NIC  */
#define PHYI_INACTIVE       IFF_INACTIVE    /* Standby active or not ? */
#define PHYI_OFFLINE        IFF_OFFLINE /* NIC has been offlined */
#define PHYI_VIRTUAL        IFF_VIRTUAL /* Will not send or recv pkts */

#define ILLF_DEBUG      IFF_DEBUG   /* turn on debugging */
#define ILLF_NOTRAILERS     IFF_NOTRAILERS  /* avoid use of trailers */
#define ILLF_NOARP      IFF_NOARP   /* no ARP for this interface */
#define ILLF_MULTICAST      IFF_MULTICAST   /* supports multicast */
#define ILLF_ROUTER     IFF_ROUTER  /* router on this interface */
#define ILLF_NONUD      IFF_NONUD   /* No NUD on this interface */
#define ILLF_NORTEXCH       IFF_NORTEXCH    /* No routing info exchange */
#define ILLF_IPV4       IFF_IPV4    /* IPv4 interface */
#define ILLF_IPV6       IFF_IPV6    /* IPv6 interface */
#define ILLF_XRESOLV        IFF_XRESOLV /* IPv6 external resolver */
#define ILLF_COS_ENABLED    IFF_COS_ENABLED /* Is CoS marking supported */

#define IPIF_UP         IFF_UP      /* interface is up */
#define IPIF_BROADCAST      IFF_BROADCAST   /* broadcast address valid */
#define IPIF_POINTOPOINT    IFF_POINTOPOINT /* point-to-point link */
#define IPIF_UNNUMBERED     IFF_UNNUMBERED  /* non-unique address */
#define IPIF_DHCPRUNNING    IFF_DHCPRUNNING /* DHCP controlled interface */
#define IPIF_PRIVATE        IFF_PRIVATE /* do not advertise */
#define IPIF_NOXMIT     IFF_NOXMIT  /* Do not transmit packets */
#define IPIF_NOLOCAL        IFF_NOLOCAL /* Just on-link subnet */
#define IPIF_DEPRECATED     IFF_DEPRECATED  /* address deprecated */
#define IPIF_ADDRCONF       IFF_ADDRCONF    /* stateless addrconf */
#define IPIF_ANYCAST        IFF_ANYCAST /* Anycast address */
#define IPIF_MIPRUNNING     IFF_MIPRUNNING  /* Mobip Controlled interface */
#define IPIF_NOFAILOVER     IFF_NOFAILOVER  /* No failover on NIC failure */
#define IPIF_PREFERRED      IFF_PREFERRED   /* Prefer as source address */
#define IPIF_TEMPORARY      IFF_TEMPORARY   /* RFC3041 */
#define IPIF_FIXEDMTU       IFF_FIXEDMTU    /* set with SIOCSLIFMTU */
#define IPIF_DUPLICATE      IFF_DUPLICATE   /* address is in use */

/* Source selection values for ipif_select_source_v6 */
#define RESTRICT_TO_NONE    0x0 /* No restriction in source selection */
#define RESTRICT_TO_GROUP   0x1 /* Restrict to IPMP group */
#define RESTRICT_TO_ILL     0x2 /* Restrict to ILL */

/* for ipif_resolver_up */
enum ip_resolver_action {
    Res_act_initial,        /* initial address establishment */
    Res_act_move,           /* address move (IPMP, new DL addr) */
    Res_act_defend          /* address defense */
};

extern  ill_t   *illgrp_scheduler(ill_t *);
extern  mblk_t  *ill_arp_alloc(ill_t *, uchar_t *, caddr_t);
extern  mblk_t  *ipif_area_alloc(ipif_t *);
extern  mblk_t  *ipif_ared_alloc(ipif_t *);
extern  mblk_t  *ill_ared_alloc(ill_t *, ipaddr_t);
extern  void    ill_dlpi_done(ill_t *, t_uscalar_t);
extern  boolean_t ill_dlpi_pending(ill_t *, t_uscalar_t);
extern  void    ill_dlpi_send(ill_t *, mblk_t *);
extern  void    ill_dlpi_send_deferred(ill_t *);

extern  mblk_t  *ill_dlur_gen(uchar_t *, uint_t, t_uscalar_t, t_scalar_t);
extern  ill_t   *ill_group_lookup_on_ifindex(uint_t, boolean_t, ip_stack_t *);
extern  ill_t   *ill_group_lookup_on_name(char *, boolean_t, ip_stack_t *);
/* NOTE: Keep unmodified ill_lookup_on_ifindex for ipp for now */
extern  ill_t   *ill_lookup_on_ifindex_global_instance(uint_t, boolean_t,
    queue_t *, mblk_t *, ipsq_func_t, int *);
extern  ill_t   *ill_lookup_on_ifindex(uint_t, boolean_t, queue_t *, mblk_t *,
    ipsq_func_t, int *, ip_stack_t *);
extern  ill_t   *ill_lookup_on_name(char *, boolean_t,
    boolean_t, queue_t *, mblk_t *, ipsq_func_t, int *, boolean_t *,
    ip_stack_t *);
extern uint_t   ill_get_next_ifindex(uint_t, boolean_t, ip_stack_t *);
extern uint_t   ill_get_ifindex_by_name(char *, ip_stack_t *);
extern ill_t    *ill_get_first(boolean_t isv6);
extern  void    ill_ipif_cache_delete(ire_t *, char *);
extern  void    ill_delete(ill_t *);
extern  void    ill_delete_tail(ill_t *);
extern  int ill_dl_phys(ill_t *, ipif_t *, mblk_t *, queue_t *);
extern  int ill_dls_info(struct sockaddr_dl *, const ipif_t *);
extern  void    ill_fastpath_ack(ill_t *, mblk_t *);
extern  void    ill_fastpath_nack(ill_t *);
extern  int ill_fastpath_probe(ill_t *, mblk_t *);
extern  void    ill_fastpath_flush(ill_t *);
extern  int ill_forward_set(ill_t *, boolean_t);
extern  void    ill_frag_prune(ill_t *, uint_t);
extern  void    ill_frag_free_pkts(ill_t *, ipfb_t *, ipf_t *, int);
extern  time_t  ill_frag_timeout(ill_t *, time_t);
extern  int ill_init(queue_t *, ill_t *);
extern  int ill_nominate_mcast_rcv(ill_group_t *);
extern  boolean_t   ill_setdefaulttoken(ill_t *);
extern  void    ill_restart_dad(ill_t *, boolean_t);
extern  int ill_set_phys_addr(ill_t *, mblk_t *);
extern  void    ill_set_ndmp(ill_t *, mblk_t *, uint_t, uint_t);

extern mblk_t   *ill_pending_mp_get(ill_t *, conn_t **, uint_t);
extern boolean_t ill_pending_mp_add(ill_t *, conn_t *, mblk_t *);
extern  boolean_t ill_is_quiescent(ill_t *ill);
extern  void    ill_unlock_ills(ill_t **, int);
extern  void    ill_lock_ills(ill_t **, int);
extern  void    ill_refhold(ill_t *);
extern  void    ill_refhold_locked(ill_t *);
extern  int ill_check_and_refhold(ill_t *);
extern  void    ill_refrele(ill_t *);
extern  boolean_t ill_waiter_inc(ill_t *);
extern  void    ill_waiter_dcr(ill_t *);
extern  void    ill_trace_ref(ill_t *);
extern  void    ill_untrace_ref(ill_t *);
extern  boolean_t ill_down_start(queue_t *, mblk_t *);
extern  ill_t   *ill_lookup_group_v6(const in6_addr_t *, zoneid_t,
    ip_stack_t *);
extern  void    ill_capability_ack(ill_t *, mblk_t *);
extern  void    ill_capability_probe(ill_t *);
extern  void    ill_capability_reset(ill_t *);
extern  void    ill_mtu_change(ire_t *, char *);
extern void ill_group_cleanup(ill_t *);
extern int  ill_up_ipifs(ill_t *, queue_t *, mblk_t *);
extern  boolean_t ill_is_probeonly(ill_t *);

extern  void    ip_loopback_cleanup(ip_stack_t *);
extern  char    *ipif_get_name(const ipif_t *, char *, int);
extern  ipif_t  *ipif_getby_indexes(uint_t, uint_t, boolean_t, ip_stack_t *);
extern  void    ipif_init(ip_stack_t *);
extern  ipif_t  *ipif_lookup_addr(ipaddr_t, ill_t *, zoneid_t, queue_t *,
    mblk_t *, ipsq_func_t, int *, ip_stack_t *);
extern  ipif_t  *ipif_lookup_addr_v6(const in6_addr_t *, ill_t *, zoneid_t,
    queue_t *, mblk_t *, ipsq_func_t, int *, ip_stack_t *);
extern  zoneid_t ipif_lookup_addr_zoneid(ipaddr_t, ill_t *, ip_stack_t *);
extern  zoneid_t ipif_lookup_addr_zoneid_v6(const in6_addr_t *, ill_t *,
    ip_stack_t *);
extern  ipif_t  *ipif_lookup_group(ipaddr_t, zoneid_t, ip_stack_t *);
extern  ipif_t  *ipif_lookup_group_v6(const in6_addr_t *, zoneid_t,
    ip_stack_t *);
extern  ipif_t  *ipif_lookup_interface(ipaddr_t, ipaddr_t,
    queue_t *, mblk_t *, ipsq_func_t, int *, ip_stack_t *);
extern  ipif_t  *ipif_lookup_multicast(ip_stack_t *, zoneid_t, boolean_t);
extern  ipif_t  *ipif_lookup_remote(ill_t *, ipaddr_t, zoneid_t);
extern  ipif_t  *ipif_lookup_onlink_addr(ipaddr_t, zoneid_t, ip_stack_t *);
extern  ipif_t  *ipif_lookup_seqid(ill_t *, uint_t);
extern  boolean_t   ipif_lookup_zoneid(ill_t *, zoneid_t, int,
    ipif_t **);
extern  boolean_t   ipif_lookup_zoneid_group(ill_t *, zoneid_t, int,
    ipif_t **);
extern  ipif_t  *ipif_select_source(ill_t *, ipaddr_t, zoneid_t);
extern  boolean_t   ipif_usesrc_avail(ill_t *, zoneid_t);
extern  void    ipif_refhold(ipif_t *);
extern  void    ipif_refhold_locked(ipif_t *);
extern  void        ipif_refrele(ipif_t *);
extern  boolean_t   ipif_ire_active(ipif_t *);
extern  void    ipif_all_down_tail(ipsq_t *, queue_t *, mblk_t *, void *);
extern  int ipif_resolver_up(ipif_t *, enum ip_resolver_action);
extern  int ipif_arp_setup_multicast(ipif_t *, mblk_t **);
extern  int ipif_down(ipif_t *, queue_t *, mblk_t *);
extern  void    ipif_down_tail(ipif_t *);
extern  void    ipif_multicast_up(ipif_t *);
extern  void    ipif_ndp_down(ipif_t *);
extern  int ipif_ndp_up(ipif_t *, const in6_addr_t *);
extern  int ipif_ndp_setup_multicast(ipif_t *, struct nce_s **);
extern  int ipif_up_done(ipif_t *);
extern  int ipif_up_done_v6(ipif_t *);
extern  void    ipif_update_other_ipifs_v6(ipif_t *, ill_group_t *);
extern  void    ipif_recreate_interface_routes_v6(ipif_t *, ipif_t *);
extern  void    ill_update_source_selection(ill_t *);
extern  ipif_t  *ipif_select_source_v6(ill_t *, const in6_addr_t *, uint_t,
    uint32_t, zoneid_t);
extern  boolean_t   ipif_cant_setlinklocal(ipif_t *);
extern  int ipif_setlinklocal(ipif_t *);
extern  void    ipif_set_tun_llink(ill_t *, struct iftun_req *);
extern  ipif_t  *ipif_lookup_on_ifindex(uint_t, boolean_t, zoneid_t, queue_t *,
    mblk_t *, ipsq_func_t, int *, ip_stack_t *);
extern  ipif_t  *ipif_get_next_ipif(ipif_t *curr, ill_t *ill);
extern  void    ipif_ill_refrele_tail(ill_t *ill);
extern  void    ipif_arp_down(ipif_t *ipif);
extern  void    ipif_mask_reply(ipif_t *);

extern  int illgrp_insert(ill_group_t **, ill_t *, char *, ill_group_t *,
    boolean_t);

extern  void    ipsq_current_start(ipsq_t *, ipif_t *, int);
extern  void    ipsq_current_finish(ipsq_t *);
extern  void    ipsq_enq(ipsq_t *, queue_t *, mblk_t *, ipsq_func_t, int,
    ill_t *);
extern  boolean_t ipsq_enter(ill_t *, boolean_t);
extern  ipsq_t  *ipsq_try_enter(ipif_t *, ill_t *, queue_t *, mblk_t *,
    ipsq_func_t, int, boolean_t);
extern  void    ipsq_exit(ipsq_t *, boolean_t, boolean_t);
extern mblk_t   *ipsq_pending_mp_get(ipsq_t *, conn_t **);
extern boolean_t ipsq_pending_mp_add(conn_t *, ipif_t *, queue_t *,
    mblk_t *, int);
extern  void    qwriter_ip(ill_t *, queue_t *, mblk_t *, ipsq_func_t, int,
    boolean_t);

extern  int ip_extract_lifreq_cmn(queue_t *, mblk_t *, int, int,
    cmd_info_t *, ipsq_func_t);
extern  int ip_extract_tunreq(queue_t *, mblk_t *, ipif_t **, ipsq_func_t);
extern  int ip_addr_availability_check(ipif_t *new_ipif);
extern  int ip_ill_report(queue_t *, mblk_t *, caddr_t, cred_t *);
extern  int ip_ipif_report(queue_t *, mblk_t *, caddr_t, cred_t *);
extern  void    ip_ll_subnet_defaults(ill_t *, mblk_t *);

extern  int ip_rt_add(ipaddr_t, ipaddr_t, ipaddr_t, ipaddr_t, int,
    ipif_t *, ipif_t *, ire_t **, boolean_t, queue_t *, mblk_t *, ipsq_func_t,
    struct rtsa_s *, ip_stack_t *);
extern  int ip_mrtun_rt_add(ipaddr_t, int, ipif_t *, ipif_t *, ire_t **,
    queue_t *, mblk_t *, ipsq_func_t, ip_stack_t *);
extern  int ip_rt_add_v6(const in6_addr_t *, const in6_addr_t *,
    const in6_addr_t *, const in6_addr_t *, int, ipif_t *, ire_t **,
    queue_t *, mblk_t *, ipsq_func_t, struct rtsa_s *, ip_stack_t *ipst);
extern  int ip_rt_delete(ipaddr_t, ipaddr_t, ipaddr_t, uint_t, int,
    ipif_t *, ipif_t *, boolean_t, queue_t *, mblk_t *, ipsq_func_t,
    ip_stack_t *);
extern  int ip_mrtun_rt_delete(ipaddr_t, ipif_t *);

extern  int ip_rt_delete_v6(const in6_addr_t *, const in6_addr_t *,
    const in6_addr_t *, uint_t, int, ipif_t *, queue_t *, mblk_t *,
    ipsq_func_t, ip_stack_t *);
extern int ip_siocdelndp_v6(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_siocqueryndp_v6(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_siocsetndp_v6(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_siocaddrt(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_siocdelrt(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_addr(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_addr_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_addr(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_dstaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_dstaddr_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_dstaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_flags(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_flags_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_flags(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_mtu(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_mtu(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_get_ifconf(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_lifconf(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_ifnum(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_lifnum(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_token(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_token(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int if_unitsel(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int if_unitsel_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_sifname(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_slifname(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_slifname_restart(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_slifindex(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_lifindex(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_brdaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_brdaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_get_muxid(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_muxid(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_netmask(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_netmask(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_netmask_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_subnet(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_subnet_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_subnet(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_lnkinfo(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_lnkinfo(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_metric(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_metric(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_arp(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_xarp(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_addif(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_removeif(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_removeif_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_tonlink(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_tmysite(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_tmyaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_tunparam(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_groupname(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_groupname(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_slifoindex(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_oindex(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_get_lifzone(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_slifzone(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_slifzone_restart(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);

extern int ip_sioctl_get_lifusesrc(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_slifusesrc(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_get_lifsrcof(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);
extern int ip_sioctl_set_ipmpfailback(ipif_t *, sin_t *, queue_t *,
    mblk_t *, ip_ioctl_cmd_t *, void *);

extern  void    ip_sioctl_copyin_resume(ipsq_t *, queue_t *, mblk_t *, void *);
extern  void    ip_sioctl_copyin_setup(queue_t *, mblk_t *);
extern  void    ip_sioctl_iocack(queue_t *, mblk_t *);
extern  ip_ioctl_cmd_t *ip_sioctl_lookup(int);
extern int ip_sioctl_move(ipif_t *, sin_t *, queue_t *, mblk_t *,
    ip_ioctl_cmd_t *, void *);

extern  void    conn_delete_ire(conn_t *, caddr_t);

/*
 * This is a function which is called from thread_exit
 * that can be used to debug reference count issues in IP.
 *
 * Notes on reference tracing on ill, ipif, ire, nce data structures:
 *
 * The current model of references on an ipif or ill is purely based on threads
 * acquiring a reference by doing a lookup on the ill or ipif or by calling a
 * refhold function on the ill or ipif. In particular any data structure that
 * points to an ipif or ill does not explicitly contribute to a reference on the
 * ill or ipif. More details may be seen in the block comment above ipif_down().
 * Thus in the quiescent state an ill or ipif has a refcnt of zero. Similarly
 * when a thread exits, there can't be any references on the ipif or ill due to
 * the exiting thread.
 *
 * As a debugging aid, the refhold and refrele functions call into tracing
 * functions that record the stack trace of the caller and the references
 * acquired or released by the calling thread, hashed by the thread id. On
 * thread exit, ipif_thread_exit and ill_thread_exit verify that there are no
 * outstanding references to the ipif or ill from the exiting thread.
 *
 * In the case of ires and nces, the model is slightly different. Typically each
 * ire pointing to an nce contributes to the nce_refcnt. Similarly a conn_t
 * pointing to an ire also contributes to the ire_refcnt. Excluding the above
 * special cases, the tracing behavior is similar to the tracing on ipif / ill.
 * Traces are neither recorded nor verified in the exception cases, and the code
 * is careful to use the right refhold and refrele functions. On thread exit
 * ire_thread_exit, nce_thread_exit does the verification that are no
 * outstanding references on the ire / nce from the exiting thread.
 *
 * The reference verification is driven from thread_exit() which calls into IP
 * via a function pointer ip_cleanup_func into the verification function
 * ip_thread_exit. This debugging aid may be helpful in tracing missing
 * refrele's on a debug kernel. On a non-debug kernel, these missing refrele's
 * are noticeable only when an interface is being unplumbed, and the unplumb
 * hangs, long after the missing refrele. On a debug kernel, the traces
 * (th_trace_t) which contain the stack backtraces can be examined on a crash
 * dump to locate the missing refrele.
 */
extern void (*ip_cleanup_func)(void);
extern void ip_thread_exit(void);

#endif /* _KERNEL */

#ifdef  __cplusplus
}
#endif

#endif  /* _INET_IP_IF_H */