usr/src/uts/common/inet/ip_if.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved.
  23  * Copyright (c) 1990 Mentat Inc.
  24  */
  25
  26 #ifndef _INET_IP_IF_H
  27 #define _INET_IP_IF_H
  28
  29 #include <net/route.h>
  30
  31 #ifdef  __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 #define PREFIX_INFINITY 0xffffffffUL
  36
  37 #define IP_LOOPBACK_MTU (8*1024)
  38
  39 #ifdef  _KERNEL
  40 /*
  41  * Interface flags actually represent the state/properties of 3 different
  42  * abstractions of interfaces in IP. Interface flags are set using
  43  * SIOCS[L]IFFLAGS ioctl. The three abstractions are :
  44  *
  45  * 1) Physical interface (phyint) : There is one phyint allocated common
  46  *    to both IPv4 and IPv6 physical interface instance.
  47  *
  48  * 2) Physical interface instance (ill) : This encompasses all the state
  49  *    that is common across all IP addresses assigned to a physical
  50  *    interface but different between the IPv4 and IPv6 instance.
  51  *
  52  * 3) Logical interface (ipif) : This has state about a single IP address.
  53  *
  54  * Values for the various states are derived from the same name space
  55  * as applications querying the state using SIOCGIFFLAGS/SIOCGLIFFLAGS
  56  * see only one state returned in lifr_flags which is a union of all
  57  * the above states/properties. Thus deriving the values from the common
  58  * name space makes implementation easier. All these values are stored in
  59  * uint64_t and any other structure/code using these flags should use
  60  * uint64_ts.
  61  *
  62  * As we maintain the interface flags in 3 different flags namely
  63  * phyint_flags, ill_flags, ipif_flags we define the following flag values
  64  * to be used within the kernel to reduce potential errors. The ones
  65  * starting with PHYI_ are supposed to be used with phyint_flags, the ones
  66  * starting with ILLF_ are supposed to be used with ill_flags and the ones
  67  * starting with IPIF_ are supposed to be used with ipif_flags. If you see
  68  * any code with a mismatch i.e phyint_flags & IPIF_UP - it is wrong. Only
  69  * PHYI_XXX can be used with phyint_flags.
  70  *
  71  * NOTE : For EVERY FLAG in if.h, there should be a corresponding value
  72  * defined HERE and this is the one that should be USED within IP. We
  73  * use IFF_ flags within IP only when we examine lifr_flags.
  74  */
  75 #define IFF_PHYINT_FLAGS        (IFF_LOOPBACK|IFF_RUNNING|IFF_PROMISC| \
  76     IFF_ALLMULTI|IFF_INTELLIGENT|IFF_MULTI_BCAST|IFF_FAILED|IFF_STANDBY| \
  77     IFF_INACTIVE|IFF_OFFLINE|IFF_VIRTUAL|IFF_IPMP|IFF_L3PROTECT)
  78
  79 #define IFF_PHYINTINST_FLAGS    (IFF_DEBUG|IFF_NOTRAILERS|IFF_NOARP| \
  80     IFF_MULTICAST|IFF_ROUTER|IFF_NONUD|IFF_NORTEXCH|IFF_IPV4|IFF_IPV6| \
  81     IFF_COS_ENABLED|IFF_FIXEDMTU|IFF_VRRP|IFF_NOACCEPT|IFF_NOLINKLOCAL)
  82
  83 #define IFF_LOGINT_FLAGS        (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT| \
  84     IFF_UNNUMBERED|IFF_DHCPRUNNING|IFF_PRIVATE|IFF_NOXMIT|IFF_NOLOCAL| \
  85     IFF_DEPRECATED|IFF_ADDRCONF|IFF_ANYCAST|IFF_NOFAILOVER| \
  86     IFF_PREFERRED|IFF_TEMPORARY|IFF_DUPLICATE)
  87
  88 #define PHYI_LOOPBACK           IFF_LOOPBACK    /* is a loopback net */
  89 #define PHYI_RUNNING            IFF_RUNNING     /* resources allocated */
  90 #define PHYI_PROMISC            IFF_PROMISC     /* receive all packets */
  91 #define PHYI_ALLMULTI           IFF_ALLMULTI    /* receive all multi packets */
  92 #define PHYI_INTELLIGENT        IFF_INTELLIGENT /* protocol code on board */
  93 #define PHYI_MULTI_BCAST        IFF_MULTI_BCAST /* multicast using broadcast */
  94 #define PHYI_FAILED             IFF_FAILED      /* NIC has failed */
  95 #define PHYI_STANDBY            IFF_STANDBY     /* Standby NIC  */
  96 #define PHYI_INACTIVE           IFF_INACTIVE    /* Standby active or not ? */
  97 #define PHYI_OFFLINE            IFF_OFFLINE     /* NIC has been offlined */
  98 #define PHYI_VIRTUAL            IFF_VIRTUAL     /* Will not send or recv pkts */
  99 #define PHYI_IPMP               IFF_IPMP        /* IPMP meta-interface */
 100 #define PHYI_L3PROTECT          IFF_L3PROTECT   /* Layer-3 protected */
 101
 102 #define ILLF_DEBUG              IFF_DEBUG       /* turn on debugging */
 103 #define ILLF_NOTRAILERS         IFF_NOTRAILERS  /* avoid use of trailers */
 104 #define ILLF_NOARP              IFF_NOARP       /* no ARP for this interface */
 105 #define ILLF_MULTICAST          IFF_MULTICAST   /* supports multicast */
 106 #define ILLF_ROUTER             IFF_ROUTER      /* router on this interface */
 107 #define ILLF_NONUD              IFF_NONUD       /* No NUD on this interface */
 108 #define ILLF_NORTEXCH           IFF_NORTEXCH    /* No routing info exchange */
 109 #define ILLF_IPV4               IFF_IPV4        /* IPv4 interface */
 110 #define ILLF_IPV6               IFF_IPV6        /* IPv6 interface */
 111 #define ILLF_COS_ENABLED        IFF_COS_ENABLED /* Is CoS marking supported */
 112 #define ILLF_FIXEDMTU           IFF_FIXEDMTU    /* set with SIOCSLIFMTU */
 113 #define ILLF_VRRP               IFF_VRRP        /* managed by VRRP */
 114 #define ILLF_NOACCEPT           IFF_NOACCEPT    /* accept only ND messagees */
 115 #define ILLF_NOLINKLOCAL        IFF_NOLINKLOCAL /* No default linklocal */
 116
 117 #define IPIF_UP                 IFF_UP          /* interface is up */
 118 #define IPIF_BROADCAST          IFF_BROADCAST   /* broadcast address valid */
 119 #define IPIF_POINTOPOINT        IFF_POINTOPOINT /* point-to-point link */
 120 #define IPIF_UNNUMBERED         IFF_UNNUMBERED  /* non-unique address */
 121 #define IPIF_DHCPRUNNING        IFF_DHCPRUNNING /* DHCP controlled interface */
 122 #define IPIF_PRIVATE            IFF_PRIVATE     /* do not advertise */
 123 #define IPIF_NOXMIT             IFF_NOXMIT      /* Do not transmit packets */
 124 #define IPIF_NOLOCAL            IFF_NOLOCAL     /* Just on-link subnet */
 125 #define IPIF_DEPRECATED         IFF_DEPRECATED  /* address deprecated */
 126 #define IPIF_ADDRCONF           IFF_ADDRCONF    /* stateless addrconf */
 127 #define IPIF_ANYCAST            IFF_ANYCAST     /* Anycast address */
 128 #define IPIF_NOFAILOVER         IFF_NOFAILOVER  /* No failover on NIC failure */
 129 #define IPIF_PREFERRED          IFF_PREFERRED   /* Prefer as source address */
 130 #define IPIF_TEMPORARY          IFF_TEMPORARY   /* RFC3041 */
 131 #define IPIF_DUPLICATE          IFF_DUPLICATE   /* address is in use */
 132
 133 #ifdef DEBUG
 134 #define ILL_MAC_PERIM_HELD(ill) ill_mac_perim_held(ill)
 135 #else
 136 #define ILL_MAC_PERIM_HELD(ill)
 137 #endif
 138
 139 /*
 140  * match flags for ipif_lookup_addr_common* functions
 141  */
 142 #define IPIF_MATCH_ILLGRP       0x00000001
 143 #define IPIF_MATCH_NONDUP       0x00000002
 144
 145 /* for ipif_resolver_up */
 146 enum ip_resolver_action {
 147         Res_act_initial,                /* initial address establishment */
 148         Res_act_rebind,                 /* IPMP address rebind (new hwaddr) */
 149         Res_act_defend,                 /* address defense */
 150         Res_act_none                    /* do nothing */
 151 };
 152
 153 extern  int     ill_add_ires(ill_t *);
 154 extern  void    ill_delete_ires(ill_t *);
 155 extern  void    ill_dlpi_done(ill_t *, t_uscalar_t);
 156 extern  boolean_t ill_dlpi_pending(ill_t *, t_uscalar_t);
 157 extern  void    ill_dlpi_dispatch(ill_t *, mblk_t *);
 158 extern  void    ill_dlpi_send(ill_t *, mblk_t *);
 159 extern  void    ill_dlpi_send_deferred(ill_t *);
 160 extern  void    ill_dlpi_queue(ill_t *, mblk_t *);
 161 extern  void    ill_dlpi_send_queued(ill_t *);
 162 extern  void    ill_mcast_queue(ill_t *, mblk_t *);
 163 extern  void    ill_mcast_send_queued(ill_t *);
 164 extern  void    ill_mcast_timer_start(ip_stack_t *);
 165 extern  void    ill_capability_done(ill_t *);
 166
 167 extern  mblk_t  *ill_dlur_gen(uchar_t *, uint_t, t_uscalar_t, t_scalar_t);
 168 /* NOTE: Keep unmodified ill_lookup_on_ifindex for ipp for now */
 169 extern  ill_t   *ill_lookup_on_ifindex_global_instance(uint_t, boolean_t);
 170 extern  ill_t   *ill_lookup_on_ifindex(uint_t, boolean_t, ip_stack_t *);
 171 extern  ill_t   *ill_lookup_on_ifindex_zoneid(uint_t, zoneid_t, boolean_t,
 172     ip_stack_t *);
 173 extern  ill_t   *ill_lookup_on_name(char *, boolean_t,
 174     boolean_t, boolean_t *, ip_stack_t *);
 175 extern boolean_t ip_xmit_ifindex_valid(uint_t, zoneid_t, boolean_t,
 176     ip_stack_t *);
 177 extern uint_t   ill_get_next_ifindex(uint_t, boolean_t, ip_stack_t *);
 178 extern uint_t   ill_get_ifindex_by_name(char *, ip_stack_t *);
 179 extern uint_t   ill_get_upper_ifindex(const ill_t *);
 180 extern  void    ill_delete(ill_t *);
 181 extern  void    ill_delete_tail(ill_t *);
 182 extern  int     ill_dl_phys(ill_t *, ipif_t *, mblk_t *, queue_t *);
 183 extern  int     ill_dls_info(struct sockaddr_dl *, const ill_t *);
 184 extern  void    ill_fastpath_ack(ill_t *, mblk_t *);
 185 extern  int     ill_fastpath_probe(ill_t *, mblk_t *);
 186 extern  int     ill_forward_set(ill_t *, boolean_t);
 187 extern  void    ill_frag_prune(ill_t *, uint_t);
 188 extern  void    ill_frag_free_pkts(ill_t *, ipfb_t *, ipf_t *, int);
 189 extern  time_t  ill_frag_timeout(ill_t *, time_t);
 190 extern  int     ill_init(queue_t *, ill_t *);
 191 extern  void    ill_restart_dad(ill_t *, boolean_t);
 192 extern  void    ill_setdefaulttoken(ill_t *);
 193 extern  void    ill_setdesttoken(ill_t *);
 194 extern  void    ill_set_inputfn(ill_t *);
 195 extern  void    ill_set_inputfn_all(ip_stack_t *);
 196 extern  int     ill_set_phys_addr(ill_t *, mblk_t *);
 197 extern  void    ill_set_allowed_ips(ill_t *, mblk_t *);
 198 extern  int     ill_replumb(ill_t *, mblk_t *);
 199 extern  void    ill_set_ndmp(ill_t *, mblk_t *, uint_t, uint_t);
 200
 201 extern  boolean_t ill_is_freeable(ill_t *ill);
 202 extern  void    ill_refhold(ill_t *);
 203 extern  void    ill_refhold_locked(ill_t *);
 204 extern  boolean_t ill_check_and_refhold(ill_t *);
 205 extern  void    ill_refrele(ill_t *);
 206 extern  boolean_t ill_waiter_inc(ill_t *);
 207 extern  void    ill_waiter_dcr(ill_t *);
 208 extern  void    ill_trace_ref(ill_t *);
 209 extern  void    ill_untrace_ref(ill_t *);
 210 extern  void    ill_downi(ire_t *, char *);
 211 extern  void    ill_downi_if_clone(ire_t *, char *);
 212 extern  boolean_t ill_down_start(queue_t *, mblk_t *);
 213 extern  ill_t   *ill_lookup_group_v4(ipaddr_t, zoneid_t,
 214     ip_stack_t *, boolean_t *, ipaddr_t *);
 215 extern  ill_t   *ill_lookup_group_v6(const in6_addr_t *, zoneid_t,
 216     ip_stack_t *, boolean_t *, in6_addr_t *);
 217
 218 extern  void    ill_capability_ack(ill_t *, mblk_t *);
 219 extern  void    ill_capability_probe(ill_t *);
 220 extern  void    ill_capability_reset(ill_t *, boolean_t);
 221 extern  void    ill_taskq_dispatch(ip_stack_t *);
 222
 223 extern  void    ill_get_name(const ill_t *, char *, int);
 224 extern  void    ill_group_cleanup(ill_t *);
 225 extern  int     ill_up_ipifs(ill_t *, queue_t *, mblk_t *);
 226 extern  void    ip_update_source_selection(ip_stack_t *);
 227 extern uint_t   ill_appaddr_cnt(const ill_t *);
 228 extern uint_t   ill_ptpaddr_cnt(const ill_t *);
 229 extern uint_t   ill_admupaddr_cnt(const ill_t *);
 230
 231 extern  ill_t   *ill_lookup_multicast(ip_stack_t *, zoneid_t, boolean_t);
 232 extern void     ill_save_ire(ill_t *, ire_t *);
 233 extern void     ill_remove_saved_ire(ill_t *, ire_t *);
 234 extern int      ill_recover_saved_ire(ill_t *);
 235
 236 extern  void    ip_interface_cleanup(ip_stack_t *);
 237 extern  void    ipif_get_name(const ipif_t *, char *, int);
 238 extern  ipif_t  *ipif_getby_indexes(uint_t, uint_t, boolean_t, ip_stack_t *);
 239 extern  void    ipif_init(ip_stack_t *);
 240 extern  ipif_t  *ipif_lookup_addr(ipaddr_t, ill_t *, zoneid_t, ip_stack_t *);
 241 extern  ipif_t  *ipif_lookup_addr_exact(ipaddr_t, ill_t *, ip_stack_t *);
 242 extern  ipif_t  *ipif_lookup_addr_nondup(ipaddr_t, ill_t *, zoneid_t,
 243     ip_stack_t *);
 244 extern  ipif_t  *ipif_lookup_addr_v6(const in6_addr_t *, ill_t *, zoneid_t,
 245     ip_stack_t *);
 246 extern  ipif_t  *ipif_lookup_addr_exact_v6(const in6_addr_t *, ill_t *,
 247     ip_stack_t *);
 248 extern  ipif_t  *ipif_lookup_addr_nondup_v6(const in6_addr_t *, ill_t *,
 249     zoneid_t, ip_stack_t *);
 250 extern  zoneid_t ipif_lookup_addr_zoneid(ipaddr_t, ill_t *, ip_stack_t *);
 251 extern  zoneid_t ipif_lookup_addr_zoneid_v6(const in6_addr_t *, ill_t *,
 252     ip_stack_t *);
 253 extern  ipif_t  *ipif_lookup_interface(ipaddr_t, ipaddr_t, ip_stack_t *);
 254 extern  ipif_t  *ipif_lookup_remote(ill_t *, ipaddr_t, zoneid_t);
 255 extern boolean_t ipif_lookup_testaddr_v6(ill_t *, const in6_addr_t *,
 256     ipif_t **);
 257 extern boolean_t ipif_lookup_testaddr_v4(ill_t *, const in_addr_t *,
 258     ipif_t **);
 259 extern  ipif_t  *ipif_select_source_v4(ill_t *, ipaddr_t, zoneid_t, boolean_t,
 260     boolean_t *);
 261 extern  boolean_t ipif_zone_avail(uint_t, boolean_t, zoneid_t, ip_stack_t *);
 262 extern  ipif_t  *ipif_good_addr(ill_t *, zoneid_t);
 263 extern  int     ip_select_source_v4(ill_t *, ipaddr_t, ipaddr_t, ipaddr_t,
 264     zoneid_t, ip_stack_t *, ipaddr_t *, uint32_t *, uint64_t *);
 265 extern  void    ipif_refhold(ipif_t *);
 266 extern  void    ipif_refhold_locked(ipif_t *);
 267 extern  void    ipif_refrele(ipif_t *);
 268 extern  void    ipif_all_down_tail(ipsq_t *, queue_t *, mblk_t *, void *);
 269 extern  int     ipif_resolver_up(ipif_t *, enum ip_resolver_action);
 270 extern  int     ipif_down(ipif_t *, queue_t *, mblk_t *);
 271 extern  int     ipif_down_tail(ipif_t *);
 272 extern  void    ipif_multicast_down(ipif_t *);
 273 extern  void    ipif_multicast_up(ipif_t *);
 274 extern  void    ipif_ndp_down(ipif_t *);
 275 extern  int     ipif_ndp_up(ipif_t *, boolean_t);
 276 extern  int     ipif_up_done(ipif_t *);
 277 extern  int     ipif_up_done_v6(ipif_t *);
 278 extern  void    ipif_up_notify(ipif_t *);
 279 extern  ipif_t  *ipif_select_source_v6(ill_t *, const in6_addr_t *, boolean_t,
 280     uint32_t, zoneid_t, boolean_t, boolean_t *);
 281 extern  int     ip_select_source_v6(ill_t *, const in6_addr_t *,
 282     const in6_addr_t *, zoneid_t, ip_stack_t *, uint_t, uint32_t, in6_addr_t *,
 283     uint32_t *, uint64_t *);
 284 extern  boolean_t       ipif_cant_setlinklocal(ipif_t *);
 285 extern  void    ipif_setlinklocal(ipif_t *);
 286 extern  void    ipif_setdestlinklocal(ipif_t *);
 287 extern  ipif_t  *ipif_lookup_on_ifindex(uint_t, boolean_t, zoneid_t,
 288     ip_stack_t *);
 289 extern  ipif_t  *ipif_get_next_ipif(ipif_t *curr, ill_t *ill);
 290 extern  void    ipif_ill_refrele_tail(ill_t *ill);
 291 extern  void    ipif_nce_down(ipif_t *ipif);
 292 extern  int     ipif_arp_down(ipif_t *ipif);
 293 extern  void    ipif_mask_reply(ipif_t *);
 294 extern  int     ipif_up(ipif_t *, queue_t *, mblk_t *);
 295 extern  ill_t   *ill_lookup_usesrc(ill_t *);
 296
 297 extern  void    ipsq_current_start(ipsq_t *, ipif_t *, int);
 298 extern  void    ipsq_current_finish(ipsq_t *);
 299 extern  void    ipsq_enq(ipsq_t *, queue_t *, mblk_t *, ipsq_func_t, int,
 300     ill_t *);
 301 extern  boolean_t ipsq_enter(ill_t *, boolean_t, int);
 302 extern  ipsq_t  *ipsq_try_enter(ipif_t *, ill_t *, queue_t *, mblk_t *,
 303     ipsq_func_t, int, boolean_t);
 304 extern  void    ipsq_exit(ipsq_t *);
 305 extern  boolean_t ill_mac_perim_held(ill_t *);
 306 extern mblk_t   *ipsq_pending_mp_get(ipsq_t *, conn_t **);
 307 extern boolean_t ipsq_pending_mp_add(conn_t *, ipif_t *, queue_t *,
 308     mblk_t *, int);
 309 extern  void    qwriter_ip(ill_t *, queue_t *, mblk_t *, ipsq_func_t, int,
 310     boolean_t);
 311
 312 typedef int     ip_extract_func_t(queue_t *, mblk_t *, const ip_ioctl_cmd_t *,
 313     cmd_info_t *);
 314
 315 extern  ip_extract_func_t ip_extract_arpreq, ip_extract_lifreq;
 316
 317 extern  int     ip_addr_availability_check(ipif_t *);
 318 extern  void    ip_ll_subnet_defaults(ill_t *, mblk_t *);
 319 extern  void    ill_capability_send(ill_t *, mblk_t *);
 320
 321 extern  int     ip_rt_add(ipaddr_t, ipaddr_t, ipaddr_t, ipaddr_t, int,
 322     ill_t *, ire_t **, boolean_t, struct rtsa_s *, ip_stack_t *, zoneid_t);
 323 extern  int     ip_rt_add_v6(const in6_addr_t *, const in6_addr_t *,
 324     const in6_addr_t *, const in6_addr_t *, int, ill_t *, ire_t **,
 325     struct rtsa_s *, ip_stack_t *, zoneid_t);
 326 extern  int     ip_rt_delete(ipaddr_t, ipaddr_t, ipaddr_t, uint_t, int,
 327     ill_t *, boolean_t, ip_stack_t *, zoneid_t);
 328 extern  int     ip_rt_delete_v6(const in6_addr_t *, const in6_addr_t *,
 329     const in6_addr_t *, uint_t, int, ill_t *, ip_stack_t *, zoneid_t);
 330 extern int ip_siocdelndp_v6(ipif_t *, sin_t *, queue_t *, mblk_t *,
 331     ip_ioctl_cmd_t *, void *);
 332 extern int ip_siocqueryndp_v6(ipif_t *, sin_t *, queue_t *, mblk_t *,
 333     ip_ioctl_cmd_t *, void *);
 334 extern int ip_siocsetndp_v6(ipif_t *, sin_t *, queue_t *, mblk_t *,
 335     ip_ioctl_cmd_t *, void *);
 336
 337 extern int ip_siocaddrt(ipif_t *, sin_t *, queue_t *, mblk_t *,
 338     ip_ioctl_cmd_t *, void *);
 339 extern int ip_siocdelrt(ipif_t *, sin_t *, queue_t *, mblk_t *,
 340     ip_ioctl_cmd_t *, void *);
 341
 342 extern int ip_sioctl_prefix(ipif_t *, sin_t *, queue_t *, mblk_t *,
 343     ip_ioctl_cmd_t *, void *);
 344 extern int ip_sioctl_prefix_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
 345     ip_ioctl_cmd_t *, void *);
 346
 347 extern int ip_sioctl_addr(ipif_t *, sin_t *, queue_t *, mblk_t *,
 348     ip_ioctl_cmd_t *, void *);
 349 extern int ip_sioctl_addr_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
 350     ip_ioctl_cmd_t *, void *);
 351 extern int ip_sioctl_get_addr(ipif_t *, sin_t *, queue_t *, mblk_t *,
 352     ip_ioctl_cmd_t *, void *);
 353
 354 extern int ip_sioctl_dstaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
 355     ip_ioctl_cmd_t *, void *);
 356 extern int ip_sioctl_dstaddr_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
 357     ip_ioctl_cmd_t *, void *);
 358 extern int ip_sioctl_get_dstaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
 359     ip_ioctl_cmd_t *, void *);
 360
 361 extern int ip_sioctl_flags(ipif_t *, sin_t *, queue_t *, mblk_t *,
 362     ip_ioctl_cmd_t *, void *);
 363 extern int ip_sioctl_flags_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
 364     ip_ioctl_cmd_t *, void *);
 365 extern int ip_sioctl_get_flags(ipif_t *, sin_t *, queue_t *, mblk_t *,
 366     ip_ioctl_cmd_t *, void *);
 367
 368 extern int ip_sioctl_mtu(ipif_t *, sin_t *, queue_t *, mblk_t *,
 369     ip_ioctl_cmd_t *, void *);
 370 extern int ip_sioctl_get_mtu(ipif_t *, sin_t *, queue_t *, mblk_t *,
 371     ip_ioctl_cmd_t *, void *);
 372
 373 extern int ip_sioctl_get_ifconf(ipif_t *, sin_t *, queue_t *, mblk_t *,
 374     ip_ioctl_cmd_t *, void *);
 375 extern int ip_sioctl_get_lifconf(ipif_t *, sin_t *, queue_t *, mblk_t *,
 376     ip_ioctl_cmd_t *, void *);
 377 extern int ip_sioctl_get_ifnum(ipif_t *, sin_t *, queue_t *, mblk_t *,
 378     ip_ioctl_cmd_t *, void *);
 379 extern int ip_sioctl_get_lifnum(ipif_t *, sin_t *, queue_t *, mblk_t *,
 380     ip_ioctl_cmd_t *, void *);
 381
 382 extern int ip_sioctl_token(ipif_t *, sin_t *, queue_t *, mblk_t *,
 383     ip_ioctl_cmd_t *, void *);
 384 extern int ip_sioctl_get_token(ipif_t *, sin_t *, queue_t *, mblk_t *,
 385     ip_ioctl_cmd_t *, void *);
 386
 387 extern int if_unitsel(ipif_t *, sin_t *, queue_t *, mblk_t *,
 388     ip_ioctl_cmd_t *, void *);
 389 extern int if_unitsel_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
 390     ip_ioctl_cmd_t *, void *);
 391
 392 extern int ip_sioctl_sifname(ipif_t *, sin_t *, queue_t *, mblk_t *,
 393     ip_ioctl_cmd_t *, void *);
 394
 395 extern int ip_sioctl_slifname(ipif_t *, sin_t *, queue_t *, mblk_t *,
 396     ip_ioctl_cmd_t *, void *);
 397 extern int ip_sioctl_slifname_restart(ipif_t *, sin_t *, queue_t *,
 398     mblk_t *, ip_ioctl_cmd_t *, void *);
 399
 400 extern int ip_sioctl_slifindex(ipif_t *, sin_t *, queue_t *, mblk_t *,
 401     ip_ioctl_cmd_t *, void *);
 402 extern int ip_sioctl_get_lifindex(ipif_t *, sin_t *, queue_t *, mblk_t *,
 403     ip_ioctl_cmd_t *, void *);
 404
 405 extern int ip_sioctl_brdaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
 406     ip_ioctl_cmd_t *, void *);
 407 extern int ip_sioctl_get_brdaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
 408     ip_ioctl_cmd_t *, void *);
 409
 410 extern int ip_sioctl_get_muxid(ipif_t *, sin_t *, queue_t *, mblk_t *,
 411     ip_ioctl_cmd_t *, void *);
 412 extern int ip_sioctl_muxid(ipif_t *, sin_t *, queue_t *, mblk_t *,
 413     ip_ioctl_cmd_t *, void *);
 414
 415 extern int ip_sioctl_netmask(ipif_t *, sin_t *, queue_t *, mblk_t *,
 416     ip_ioctl_cmd_t *, void *);
 417 extern int ip_sioctl_get_netmask(ipif_t *, sin_t *, queue_t *, mblk_t *,
 418     ip_ioctl_cmd_t *, void *);
 419 extern int ip_sioctl_netmask_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
 420     ip_ioctl_cmd_t *, void *);
 421
 422 extern int ip_sioctl_subnet(ipif_t *, sin_t *, queue_t *, mblk_t *,
 423     ip_ioctl_cmd_t *, void *);
 424 extern int ip_sioctl_subnet_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
 425     ip_ioctl_cmd_t *, void *);
 426 extern int ip_sioctl_get_subnet(ipif_t *, sin_t *, queue_t *, mblk_t *,
 427     ip_ioctl_cmd_t *, void *);
 428
 429 extern int ip_sioctl_lnkinfo(ipif_t *, sin_t *, queue_t *, mblk_t *,
 430     ip_ioctl_cmd_t *, void *);
 431 extern int ip_sioctl_get_lnkinfo(ipif_t *, sin_t *, queue_t *, mblk_t *,
 432     ip_ioctl_cmd_t *, void *);
 433
 434 extern int ip_sioctl_metric(ipif_t *, sin_t *, queue_t *, mblk_t *,
 435     ip_ioctl_cmd_t *, void *);
 436 extern int ip_sioctl_get_metric(ipif_t *, sin_t *, queue_t *, mblk_t *,
 437     ip_ioctl_cmd_t *, void *);
 438
 439 extern int ip_sioctl_arp(ipif_t *, sin_t *, queue_t *, mblk_t *,
 440     ip_ioctl_cmd_t *, void *);
 441
 442 extern int ip_sioctl_addif(ipif_t *, sin_t *, queue_t *, mblk_t *,
 443     ip_ioctl_cmd_t *, void *);
 444 extern int ip_sioctl_removeif(ipif_t *, sin_t *, queue_t *, mblk_t *,
 445     ip_ioctl_cmd_t *, void *);
 446 extern int ip_sioctl_removeif_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
 447     ip_ioctl_cmd_t *, void *);
 448
 449 extern int ip_sioctl_tonlink(ipif_t *, sin_t *, queue_t *, mblk_t *,
 450     ip_ioctl_cmd_t *, void *);
 451 extern int ip_sioctl_tmysite(ipif_t *, sin_t *, queue_t *, mblk_t *,
 452     ip_ioctl_cmd_t *, void *);
 453 extern int ip_sioctl_tmyaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
 454     ip_ioctl_cmd_t *, void *);
 455
 456 extern int ip_sioctl_get_binding(ipif_t *, sin_t *, queue_t *,
 457     mblk_t *, ip_ioctl_cmd_t *, void *);
 458 extern int ip_sioctl_groupname(ipif_t *, sin_t *, queue_t *,
 459     mblk_t *, ip_ioctl_cmd_t *, void *);
 460 extern int ip_sioctl_get_groupname(ipif_t *, sin_t *, queue_t *,
 461     mblk_t *, ip_ioctl_cmd_t *, void *);
 462 extern int ip_sioctl_groupinfo(ipif_t *, sin_t *, queue_t *,
 463     mblk_t *, ip_ioctl_cmd_t *, void *);
 464
 465 extern int ip_sioctl_get_lifzone(ipif_t *, sin_t *, queue_t *,
 466     mblk_t *, ip_ioctl_cmd_t *, void *);
 467 extern int ip_sioctl_slifzone(ipif_t *, sin_t *, queue_t *,
 468     mblk_t *, ip_ioctl_cmd_t *, void *);
 469 extern int ip_sioctl_slifzone_restart(ipif_t *, sin_t *, queue_t *,
 470     mblk_t *, ip_ioctl_cmd_t *, void *);
 471
 472 extern int ip_sioctl_get_lifusesrc(ipif_t *, sin_t *, queue_t *,
 473     mblk_t *, ip_ioctl_cmd_t *, void *);
 474 extern int ip_sioctl_slifusesrc(ipif_t *, sin_t *, queue_t *,
 475     mblk_t *, ip_ioctl_cmd_t *, void *);
 476 extern int ip_sioctl_get_lifsrcof(ipif_t *, sin_t *, queue_t *,
 477     mblk_t *, ip_ioctl_cmd_t *, void *);
 478
 479 extern int ip_sioctl_get_dadstate(ipif_t *, sin_t *, queue_t *, mblk_t *,
 480     ip_ioctl_cmd_t *, void *);
 481
 482 extern int ip_sioctl_get_ifhwaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
 483     ip_ioctl_cmd_t *, void *);
 484 extern int ip_sioctl_get_lifhwaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
 485     ip_ioctl_cmd_t *, void *);
 486
 487 extern  void    ip_sioctl_copyin_resume(ipsq_t *, queue_t *, mblk_t *, void *);
 488 extern  void    ip_sioctl_copyin_setup(queue_t *, mblk_t *);
 489 extern  ip_ioctl_cmd_t *ip_sioctl_lookup(int);
 490 extern void     ipif_delete_ires_v4(ipif_t *);
 491 extern void     ipif_delete_ires_v6(ipif_t *);
 492 extern int      ipif_arp_up(ipif_t *, enum ip_resolver_action, boolean_t);
 493 extern void     ipif_dup_recovery(void *);
 494 extern void     ipif_do_recovery(ipif_t *);
 495
 496 /*
 497  * Notes on reference tracing on ill, ipif, ire, nce data structures:
 498  *
 499  * The current model of references on an ipif or ill is purely based on threads
 500  * acquiring a reference by doing a lookup on the ill or ipif or by calling a
 501  * refhold function on the ill or ipif. In particular any data structure that
 502  * points to an ipif or ill does not explicitly contribute to a reference on the
 503  * ill or ipif. More details may be seen in the block comment above ipif_down().
 504  * Thus in the quiescent state an ill or ipif has a refcnt of zero. Similarly
 505  * when a thread exits, there can't be any references on the ipif or ill due to
 506  * the exiting thread.
 507  *
 508  * As a debugging aid, the refhold and refrele functions call into tracing
 509  * functions that record the stack trace of the caller and the references
 510  * acquired or released by the calling thread, hashed by the structure address
 511  * in thread-specific-data (TSD).  On thread exit, ip_thread_exit destroys the
 512  * hash, and the destructor for the hash entries (th_trace_free) verifies that
 513  * there are no outstanding references to the ipif or ill from the exiting
 514  * thread.
 515  *
 516  * In the case of ires and nces, the model is slightly different. Typically each
 517  * ire pointing to an nce contributes to the nce_refcnt. Similarly a conn_t
 518  * pointing to an ire also contributes to the ire_refcnt. Excluding the above
 519  * special cases, the tracing behavior is similar to the tracing on ipif / ill.
 520  * Traces are neither recorded nor verified in the exception cases, and the code
 521  * is careful to use the right refhold and refrele functions. On thread exit
 522  * ire_thread_exit, nce_thread_exit does the verification that are no
 523  * outstanding references on the ire / nce from the exiting thread.
 524  *
 525  * The reference verification is driven from the TSD destructor which calls
 526  * into IP's verification function ip_thread_exit. This debugging aid may be
 527  * helpful in tracing missing refrele's on a debug kernel. On a non-debug
 528  * kernel, these missing refrele's are noticeable only when an interface is
 529  * being unplumbed, and the unplumb hangs, long after the missing refrele. On a
 530  * debug kernel, the traces (th_trace_t) which contain the stack backtraces can
 531  * be examined on a crash dump to locate the missing refrele.
 532  */
 533
 534 #endif /* _KERNEL */
 535
 536 #ifdef  __cplusplus
 537 }
 538 #endif
 539
 540 #endif  /* _INET_IP_IF_H */