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      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 2007 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     27 
     28 #include <sys/types.h>
     29 #include <sys/stream.h>
     30 #define	_SUN_TPI_VERSION 2
     31 #include <sys/tihdr.h>
     32 #include <sys/socket.h>
     33 #include <sys/xti_xtiopt.h>
     34 #include <sys/xti_inet.h>
     35 
     36 #include <netinet/in.h>
     37 #include <netinet/icmp6.h>
     38 #include <inet/common.h>
     39 #include <netinet/ip6.h>
     40 #include <inet/ip.h>
     41 /*
     42  * MK_XXX Following 2 includes temporary to import ip6_rthdr_t
     43  *        definition. May not be needed if we fix ip6_dg_snd_attrs_t
     44  *        to do all extension headers in identical manner.
     45  */
     46 #include <net/if.h>
     47 #include <inet/ip6.h>
     48 
     49 #include <netinet/tcp.h>
     50 #include <netinet/ip_mroute.h>
     51 #include <inet/optcom.h>
     52 
     53 
     54 extern int icmp_opt_default(queue_t *, int, int, uchar_t *);
     55 extern int icmp_opt_get(queue_t *, int, int, uchar_t *);
     56 extern int icmp_opt_set(queue_t *, uint_t, int, int, uint_t, uchar_t *,
     57     uint_t *, uchar_t *, void *, cred_t *, mblk_t *);
     58 
     59 /*
     60  * Table of all known options handled on a ICMP protocol stack.
     61  *
     62  * Note: This table contains options processed by both ICMP and IP levels
     63  *       and is the superset of options that can be performed on a ICMP over IP
     64  *       stack.
     65  */
     66 opdes_t	icmp_opt_arr[] = {
     67 
     68 { SO_DEBUG,	SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
     69 { SO_DONTROUTE,	SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
     70 { SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0
     71 	},
     72 { SO_BROADCAST,	SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
     73 { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
     74 
     75 #ifdef	SO_PROTOTYPE
     76 	/*
     77 	 * icmp will only allow IPPROTO_ICMP for non-privileged streams
     78 	 * that check is made on an adhoc basis.
     79 	 */
     80 { SO_PROTOTYPE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
     81 #endif
     82 
     83 { SO_TYPE,	SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
     84 { SO_SNDBUF,	SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
     85 { SO_RCVBUF,	SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
     86 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int),
     87 	0 },
     88 { SO_TIMESTAMP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0
     89 	},
     90 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int),
     91 	0 },
     92 
     93 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT, sizeof (int),
     94 	0 },
     95 { SO_DOMAIN,	SOL_SOCKET, OA_R, OA_R, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
     96 
     97 { IP_OPTIONS,	IPPROTO_IP, OA_RW, OA_RW, OP_NP,
     98 	(OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT),
     99 	40, -1 /* not initialized */ },
    100 { T_IP_OPTIONS,	IPPROTO_IP, OA_RW, OA_RW, OP_NP,
    101 	(OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT),
    102 	40, -1 /* not initialized */ },
    103 
    104 { IP_HDRINCL,	IPPROTO_IP, OA_R,  OA_RW, OP_RAW, OP_PASSNEXT,
    105 	sizeof (int), 0 },
    106 { IP_TOS,	IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
    107 { T_IP_TOS,	IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
    108 { IP_TTL,	IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
    109 
    110 { IP_MULTICAST_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    111 	sizeof (struct in_addr), 0 /* INADDR_ANY */ },
    112 
    113 { IP_MULTICAST_LOOP, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN),
    114 	sizeof (uchar_t), -1 /* not initialized */},
    115 
    116 { IP_MULTICAST_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN),
    117 	sizeof (uchar_t), -1 /* not initialized */ },
    118 
    119 { IP_ADD_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT),
    120 	sizeof (struct ip_mreq), -1 /* not initialized */ },
    121 
    122 { IP_DROP_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT),
    123 	sizeof (struct ip_mreq), 0 },
    124 
    125 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT),
    126 	sizeof (struct ip_mreq_source), -1 },
    127 
    128 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT),
    129 	sizeof (struct ip_mreq_source), -1 },
    130 
    131 { IP_ADD_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP,
    132 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 },
    133 
    134 { IP_DROP_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP,
    135 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 },
    136 
    137 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT),
    138 	sizeof (ipsec_req_t), -1 /* not initialized */ },
    139 
    140 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    141 	sizeof (int),	0 /* no ifindex */ },
    142 
    143 { IP_DONTFAILOVER_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    144 	sizeof (struct in_addr), 0 /* not initialized */ },
    145 
    146 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, OP_PASSNEXT,
    147 	sizeof (int), 0 },
    148 
    149 { IP_BROADCAST_TTL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0, sizeof (uchar_t),
    150 	0 /* disabled */ },
    151 
    152 { IP_RECVIF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int), 0 },
    153 
    154 { IP_PKTINFO, IPPROTO_IP, OA_RW, OA_RW, OP_NP,
    155 	(OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN),
    156 	sizeof (struct in_pktinfo), -1 /* not initialized */ },
    157 
    158 { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, OP_PASSNEXT,
    159 	sizeof (in_addr_t), -1 /* not initialized */ },
    160 
    161 { MRT_INIT, IPPROTO_IP, 0, OA_X, OP_CONFIG,
    162 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (int),
    163 	-1 /* not initialized */ },
    164 
    165 { MRT_DONE, IPPROTO_IP, 0, OA_X, OP_CONFIG,
    166 	(OP_PASSNEXT|OP_NODEFAULT), 0, -1 /* not initialized */ },
    167 
    168 { MRT_ADD_VIF, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT),
    169 	sizeof (struct vifctl), -1 /* not initialized */ },
    170 
    171 { MRT_DEL_VIF, 	IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT),
    172 	sizeof (vifi_t), -1 /* not initialized */ },
    173 
    174 { MRT_ADD_MFC, 	IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT),
    175 	sizeof (struct mfcctl), -1 /* not initialized */ },
    176 
    177 { MRT_DEL_MFC, 	IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_PASSNEXT|OP_NODEFAULT),
    178 	sizeof (struct mfcctl), -1 /* not initialized */ },
    179 
    180 { MRT_VERSION, 	IPPROTO_IP, OA_R, OA_R, OP_NP, (OP_PASSNEXT|OP_NODEFAULT),
    181 	sizeof (int), -1 /* not initialized */ },
    182 
    183 { MRT_ASSERT, 	IPPROTO_IP, 0, OA_RW, OP_CONFIG,
    184 	(OP_PASSNEXT|OP_NODEFAULT),
    185 	sizeof (int), -1 /* not initialized */ },
    186 
    187 { MCAST_JOIN_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP,
    188 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req),
    189 	-1 /* not initialized */ },
    190 { MCAST_LEAVE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP,
    191 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req),
    192 	-1 /* not initialized */ },
    193 { MCAST_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP,
    194 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req),
    195 	-1 /* not initialized */ },
    196 { MCAST_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP,
    197 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req),
    198 	-1 /* not initialized */ },
    199 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP,
    200 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req),
    201 	-1 /* not initialized */ },
    202 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP,
    203 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req),
    204 	-1 /* not initialized */ },
    205 
    206 { IPV6_MULTICAST_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    207 	sizeof (int), 0 },
    208 
    209 { IPV6_MULTICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    210 	(OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */ },
    211 
    212 { IPV6_MULTICAST_LOOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    213 	(OP_PASSNEXT|OP_DEF_FN), sizeof (int), -1 /* not initialized */},
    214 
    215 { IPV6_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT),
    216 	sizeof (struct ipv6_mreq), -1 /* not initialized */ },
    217 
    218 { IPV6_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_PASSNEXT|OP_NODEFAULT),
    219 	sizeof (struct ipv6_mreq), -1 /* not initialized */ },
    220 
    221 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_DEF_FN),
    222 	sizeof (int), -1 /* not initialized */ },
    223 
    224 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    225 	sizeof (int),	0 /* no ifindex */ },
    226 
    227 { IPV6_BOUND_PIF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    228 	sizeof (int),	0 /* no ifindex */ },
    229 
    230 { IPV6_DONTFAILOVER_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    231 	sizeof (int),	0 /* no ifindex */ },
    232 
    233 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, OP_PASSNEXT,
    234 	sizeof (int), 0 },
    235 
    236 { IPV6_CHECKSUM, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT, sizeof (int),
    237 	-1 },
    238 
    239 { ICMP6_FILTER, IPPROTO_ICMPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN|OP_VARLEN,
    240 	sizeof (icmp6_filter_t), 0 },
    241 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    242 	(OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN),
    243 	sizeof (struct in6_pktinfo), -1 /* not initialized */ },
    244 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    245 	(OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN),
    246 	sizeof (int), -1 /* not initialized */ },
    247 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    248 	(OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN),
    249 	sizeof (sin6_t), -1 /* not initialized */ },
    250 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    251 	(OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT),
    252 	MAX_EHDR_LEN, -1 /* not initialized */ },
    253 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    254 	(OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT),
    255 	MAX_EHDR_LEN, -1 /* not initialized */ },
    256 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    257 	(OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT),
    258 	MAX_EHDR_LEN, -1 /* not initialized */ },
    259 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    260 	(OP_PASSNEXT|OP_VARLEN|OP_NODEFAULT),
    261 	MAX_EHDR_LEN, -1 /* not initialized */ },
    262 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    263 	(OP_PASSNEXT|OP_NODEFAULT|OP_VARLEN),
    264 	sizeof (int), -1 /* not initialized */ },
    265 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    266 	sizeof (struct ip6_mtuinfo), -1 },
    267 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    268 	sizeof (int), 0 },
    269 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    270 	sizeof (int), 0 },
    271 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    272 	sizeof (int), 0 },
    273 
    274 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    275 	sizeof (int), 0 },
    276 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    277 	sizeof (int), 0 },
    278 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    279 	sizeof (int), 0 },
    280 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    281 	sizeof (int), 0 },
    282 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    283 	sizeof (int), 0 },
    284 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    285 	sizeof (int), 0 },
    286 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    287 	sizeof (int), 0 },
    288 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    289 	sizeof (int), 0 },
    290 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    291 	sizeof (int), 0 },
    292 
    293 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_PASSNEXT|OP_NODEFAULT),
    294 	sizeof (ipsec_req_t), -1 /* not initialized */ },
    295 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_PASSNEXT,
    296 	sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT },
    297 
    298 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    299 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req),
    300 	-1 /* not initialized */ },
    301 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    302 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_req),
    303 	-1 /* not initialized */ },
    304 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    305 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req),
    306 	-1 /* not initialized */ },
    307 { MCAST_UNBLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    308 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req),
    309 	-1 /* not initialized */ },
    310 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    311 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req),
    312 	-1 /* not initialized */ },
    313 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    314 	(OP_PASSNEXT|OP_NODEFAULT), sizeof (struct group_source_req),
    315 	-1 /* not initialized */ },
    316 };
    317 
    318 /*
    319  * Table of all supported levels
    320  * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have
    321  * any supported options so we need this info separately.
    322  *
    323  * This is needed only for topmost tpi providers and is used only by
    324  * XTI interfaces.
    325  */
    326 optlevel_t	icmp_valid_levels_arr[] = {
    327 	XTI_GENERIC,
    328 	SOL_SOCKET,
    329 	IPPROTO_ICMP,
    330 	IPPROTO_IP,
    331 	IPPROTO_IPV6,
    332 	IPPROTO_ICMPV6
    333 };
    334 
    335 #define	ICMP_VALID_LEVELS_CNT	A_CNT(icmp_valid_levels_arr)
    336 #define	ICMP_OPT_ARR_CNT		A_CNT(icmp_opt_arr)
    337 
    338 uint_t	icmp_max_optsize; /* initialized when ICMP driver is loaded */
    339 
    340 /*
    341  * Initialize option database object for ICMP
    342  *
    343  * This object represents database of options to search passed to
    344  * {sock,tpi}optcom_req() interface routine to take care of option
    345  * management and associated methods.
    346  */
    347 
    348 optdb_obj_t icmp_opt_obj = {
    349 	icmp_opt_default,	/* ICMP default value function pointer */
    350 	icmp_opt_get,		/* ICMP get function pointer */
    351 	icmp_opt_set,		/* ICMP set function pointer */
    352 	B_TRUE,			/* ICMP is tpi provider */
    353 	ICMP_OPT_ARR_CNT,	/* ICMP option database count of entries */
    354 	icmp_opt_arr,		/* ICMP option database */
    355 	ICMP_VALID_LEVELS_CNT,	/* ICMP valid level count of entries */
    356 	icmp_valid_levels_arr	/* ICMP valid level array */
    357 };
    358