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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_inet.h>
     34 
     35 #include <inet/common.h>
     36 #include <netinet/ip6.h>
     37 #include <inet/ip.h>
     38 
     39 #include <netinet/in.h>
     40 #include <netinet/ip_mroute.h>
     41 #include <inet/optcom.h>
     42 
     43 
     44 extern int	ip_opt_default(queue_t *q, int level, int name, uchar_t *ptr);
     45 extern int	ip_opt_get(queue_t *q, int level, int name, uchar_t *ptr);
     46 extern int	ip_opt_set(queue_t *q, uint_t optset_context, int level,
     47     int name, uint_t inlen, uchar_t *invalp, uint_t *outlenp, uchar_t *outvalp,
     48     void *, cred_t *cr, mblk_t *);
     49 
     50 /*
     51  * Table of all known options handled on a IP protocol stack.
     52  *
     53  * Note: Not all of these options are available through all protocol stacks
     54  *	 For example, multicast options are not accessible in TCP over IP.
     55  *	 The filtering for that happens in option table at transport level.
     56  *	 Also, this table excludes any options processed exclusively at the
     57  *	 transport protocol level.
     58  */
     59 opdes_t		ip_opt_arr[] = {
     60 
     61 { SO_DONTROUTE,	SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
     62 { SO_BROADCAST,	SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
     63 { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
     64 { SO_PROTOTYPE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
     65 { SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
     66 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0
     67 	},
     68 
     69 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, 0, sizeof (int),
     70 	0 },
     71 
     72 
     73 { IP_OPTIONS,	IPPROTO_IP, OA_RW, OA_RW, OP_NP,
     74 	(OP_VARLEN|OP_NODEFAULT), 40, -1 /* not initialized */ },
     75 { T_IP_OPTIONS,	IPPROTO_IP, OA_RW, OA_RW, OP_NP,
     76 	(OP_VARLEN|OP_NODEFAULT), 40, -1 /* not initialized */ },
     77 
     78 { IP_TOS,	IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
     79 { T_IP_TOS,	IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
     80 { IP_TTL,	IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
     81 { IP_MULTICAST_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0,
     82 	sizeof (struct in_addr),	0 /* INADDR_ANY */ },
     83 
     84 { IP_MULTICAST_LOOP, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_DEF_FN),
     85 	sizeof (uchar_t), -1 /* not initialized */},
     86 
     87 { IP_MULTICAST_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_DEF_FN),
     88 	sizeof (uchar_t), -1 /* not initialized */ },
     89 
     90 { IP_ADD_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_NODEFAULT),
     91 	sizeof (struct ip_mreq), -1 /* not initialized */ },
     92 
     93 { IP_DROP_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_NODEFAULT),
     94 	sizeof (struct ip_mreq), -1 /* not initialized */ },
     95 
     96 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_NODEFAULT),
     97 	sizeof (struct ip_mreq_source), -1 /* not initialized */ },
     98 
     99 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, (OP_NODEFAULT),
    100 	sizeof (struct ip_mreq_source), -1 /* not initialized */ },
    101 
    102 { IP_ADD_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP,
    103 	(OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 },
    104 
    105 { IP_DROP_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP,
    106 	(OP_NODEFAULT), sizeof (struct ip_mreq_source), -1 },
    107 
    108 { IP_RECVOPTS,	IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
    109 
    110 { IP_RECVDSTADDR, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0
    111 	},
    112 
    113 { IP_RECVIF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
    114 
    115 { IP_PKTINFO, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
    116 
    117 { IP_RECVSLLA, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
    118 
    119 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0,
    120 	sizeof (int),	0 /* no ifindex */ },
    121 
    122 { IP_DONTFAILOVER_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0,
    123 	sizeof (struct in_addr),	0 /* not initialized */ },
    124 
    125 { IP_DHCPINIT_IF, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0,
    126 	sizeof (int), 0 },
    127 
    128 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0,
    129 	sizeof (int), 0 },
    130 
    131 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, (OP_NODEFAULT),
    132 	sizeof (ipsec_req_t), -1 /* not initialized */ },
    133 
    134 { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0,
    135 	sizeof (in_addr_t),	-1 /* not initialized */ },
    136 
    137 { MRT_INIT, IPPROTO_IP, 0, OA_X, OP_CONFIG,
    138 	(OP_NODEFAULT), sizeof (int), -1 /* not initialized */ },
    139 
    140 { MRT_DONE, IPPROTO_IP, 0, OA_X, OP_CONFIG,
    141 	(OP_NODEFAULT), 0, -1 /* not initialized */ },
    142 
    143 { MRT_ADD_VIF, IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_NODEFAULT),
    144 	sizeof (struct vifctl), -1 /* not initialized */ },
    145 
    146 { MRT_DEL_VIF, 	IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_NODEFAULT),
    147 	sizeof (vifi_t), -1 /* not initialized */ },
    148 
    149 { MRT_ADD_MFC, 	IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_NODEFAULT),
    150 	sizeof (struct mfcctl), -1 /* not initialized */ },
    151 
    152 { MRT_DEL_MFC, 	IPPROTO_IP, 0, OA_X, OP_CONFIG, (OP_NODEFAULT),
    153 	sizeof (struct mfcctl), -1 /* not initialized */ },
    154 
    155 { MRT_VERSION, 	IPPROTO_IP, OA_R, OA_R, OP_NP, (OP_NODEFAULT),
    156 	sizeof (int), -1 /* not initialized */ },
    157 
    158 { MRT_ASSERT, 	IPPROTO_IP, 0, OA_RW, OP_CONFIG, (OP_NODEFAULT),
    159 	sizeof (int), -1 /* not initialized */ },
    160 
    161 { MCAST_JOIN_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP,
    162 	(OP_NODEFAULT), sizeof (struct group_req),
    163 	-1 /* not initialized */ },
    164 { MCAST_LEAVE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP,
    165 	(OP_NODEFAULT), sizeof (struct group_req),
    166 	-1 /* not initialized */ },
    167 { MCAST_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP,
    168 	(OP_NODEFAULT), sizeof (struct group_source_req),
    169 	-1 /* not initialized */ },
    170 { MCAST_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP,
    171 	(OP_NODEFAULT), sizeof (struct group_source_req),
    172 	-1 /* not initialized */ },
    173 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP,
    174 	(OP_NODEFAULT), sizeof (struct group_source_req),
    175 	-1 /* not initialized */ },
    176 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP,
    177 	(OP_NODEFAULT), sizeof (struct group_source_req),
    178 	-1 /* not initialized */ },
    179 
    180 { IPV6_MULTICAST_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    181 	sizeof (int), 0 },
    182 
    183 { IPV6_MULTICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    184 	(OP_DEF_FN), sizeof (int), -1 /* not initialized */ },
    185 
    186 { IPV6_MULTICAST_LOOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    187 	(OP_DEF_FN), sizeof (int), -1 /* not initialized */},
    188 
    189 { IPV6_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, (OP_NODEFAULT),
    190 	sizeof (struct ipv6_mreq), -1 /* not initialized */ },
    191 
    192 { IPV6_LEAVE_GROUP,	IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    193 	(OP_NODEFAULT),
    194 	sizeof (struct ipv6_mreq), -1 /* not initialized */ },
    195 
    196 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    197 	(OP_DEF_FN), sizeof (int), -1 /* not initialized */ },
    198 
    199 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    200 	sizeof (int),	0 /* no ifindex */ },
    201 
    202 { IPV6_BOUND_PIF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    203 	sizeof (int),	0 /* no ifindex */ },
    204 
    205 { IPV6_DONTFAILOVER_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    206 	sizeof (int),	0 /* no ifindex */ },
    207 
    208 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, 0,
    209 	sizeof (int), 0 },
    210 
    211 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    212 	(OP_NODEFAULT|OP_VARLEN),
    213 	sizeof (struct in6_pktinfo), -1 /* not initialized */ },
    214 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    215 	(OP_NODEFAULT|OP_VARLEN),
    216 	sizeof (int), -1 /* not initialized */ },
    217 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    218 	(OP_NODEFAULT|OP_VARLEN),
    219 	sizeof (sin6_t), -1 /* not initialized */ },
    220 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    221 	(OP_VARLEN|OP_NODEFAULT), 255*8,
    222 	-1 /* not initialized */ },
    223 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    224 	(OP_VARLEN|OP_NODEFAULT), 255*8,
    225 	-1 /* not initialized */ },
    226 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    227 	(OP_VARLEN|OP_NODEFAULT), 255*8,
    228 	-1 /* not initialized */ },
    229 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    230 	(OP_VARLEN|OP_NODEFAULT), 255*8,
    231 	-1 /* not initialized */ },
    232 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
    233 	(OP_NODEFAULT|OP_VARLEN),
    234 	sizeof (int), -1 /* not initialized */ },
    235 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    236 	sizeof (struct ip6_mtuinfo), -1 },
    237 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    238 	sizeof (int), 0 },
    239 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    240 	sizeof (int), -1 },
    241 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    242 	sizeof (int), 0 },
    243 
    244 /* Enable receipt of ancillary data */
    245 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    246 	sizeof (int), 0 },
    247 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    248 	sizeof (int), 0 },
    249 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    250 	sizeof (int), 0 },
    251 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    252 	sizeof (int), 0 },
    253 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    254 	sizeof (int), 0 },
    255 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    256 	sizeof (int), 0 },
    257 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    258 	sizeof (int), 0 },
    259 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    260 	sizeof (int), 0 },
    261 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    262 	sizeof (int), 0 },
    263 
    264 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, (OP_NODEFAULT),
    265 	sizeof (ipsec_req_t), -1 /* not initialized */ },
    266 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
    267 	sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT },
    268 
    269 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    270 	(OP_NODEFAULT), sizeof (struct group_req),
    271 	-1 /* not initialized */ },
    272 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    273 	(OP_NODEFAULT), sizeof (struct group_req),
    274 	-1 /* not initialized */ },
    275 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    276 	(OP_NODEFAULT), sizeof (struct group_source_req),
    277 	-1 /* not initialized */ },
    278 { MCAST_UNBLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    279 	(OP_NODEFAULT), sizeof (struct group_source_req),
    280 	-1 /* not initialized */ },
    281 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    282 	(OP_NODEFAULT), sizeof (struct group_source_req),
    283 	-1 /* not initialized */ },
    284 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
    285 	(OP_NODEFAULT), sizeof (struct group_source_req),
    286 	-1 /* not initialized */ },
    287 };
    288 
    289 
    290 #define	IP_OPT_ARR_CNT		A_CNT(ip_opt_arr)
    291 
    292 
    293 /*
    294  * Initialize option database object for IP
    295  *
    296  * This object represents database of options to search passed to
    297  * {sock,tpi}optcom_req() interface routine to take care of option
    298  * management and associated methods.
    299  */
    300 
    301 optdb_obj_t ip_opt_obj = {
    302 	ip_opt_default,		/* IP default value function pointer */
    303 	ip_opt_get,		/* IP get function pointer */
    304 	ip_opt_set,		/* IP set function pointer */
    305 	B_FALSE,		/* IP is NOT a tpi provider */
    306 	IP_OPT_ARR_CNT,		/* IP option database count of entries */
    307 	ip_opt_arr,		/* IP option database */
    308 	0,			/* 0 - not needed if not top tpi provider */
    309 	(optlevel_t *)0		/* null - not needed if not top tpi provider */
    310 };
    311