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 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <sys/types.h>
27 #include <sys/stream.h>
28 #define _SUN_TPI_VERSION 2
29 #include <sys/tihdr.h>
30 #include <sys/socket.h>
31 #include <sys/xti_xtiopt.h>
32 #include <sys/xti_inet.h>
33
34 #include <inet/common.h>
35 #include <netinet/ip6.h>
36 #include <inet/ip.h>
37 #include <inet/udp_impl.h>
38 /*
39 * MK_XXX Following 2 includes temporary to import ip6_rthdr_t
40 * definition. May not be needed if we fix ip6_dg_snd_attrs_t
41 * to do all extension headers in identical manner.
42 */
43 #include <net/if.h>
44 #include <inet/ip6.h>
45
46 #include <netinet/in.h>
47 #include <netinet/udp.h>
48 #include <inet/optcom.h>
49
50 /*
51 * Table of all known options handled on a UDP protocol stack.
52 *
53 * Note: This table contains options processed by both UDP and IP levels
54 * and is the superset of options that can be performed on a UDP over IP
55 * stack.
56 */
57 opdes_t udp_opt_arr[] = {
58
59 { SO_DEBUG, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
60 { SO_DONTROUTE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
61 { SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0
62 },
63 { SO_BROADCAST, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
64 { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
65 { SO_TYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 },
66 { SO_SNDBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
67 { SO_RCVBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
68 { SO_SNDTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0,
69 sizeof (struct timeval), 0 },
70 { SO_RCVTIMEO, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0,
71 sizeof (struct timeval), 0 },
72 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int),
73 0 },
74 { SO_RECVUCRED, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0
75 },
76 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, 0, sizeof (int),
77 0 },
78 { SO_VRRP, SOL_SOCKET, OA_RW, OA_RW, OP_CONFIG, 0, sizeof (int), 0 },
79 { SO_TIMESTAMP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0
80 },
81 { SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int),
82 0 },
83 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int),
84 0 },
85 { SO_MAC_IMPLICIT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int),
86 0 },
87 /*
88 * The maximum size reported here depends on the maximum value for
89 * ucredsize; unfortunately, we can't add ucredsize here so we need
90 * to estimate here. Before it was 512 or 384 + NGROUPS_UMAX * sizeof (gid_t);
91 * as we're changing NGROUPS_UMAX we now codify this here using NGROUPS_UMAX.
92 */
93 { SCM_UCRED, SOL_SOCKET, OA_W, OA_W, OP_NP, OP_VARLEN|OP_NODEFAULT,
94 384 + NGROUPS_UMAX * sizeof (gid_t), 0 },
95 { SO_EXCLBIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
96 { SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 },
97 { SO_PROTOTYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 },
98
99 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP,
100 (OP_VARLEN|OP_NODEFAULT),
101 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ },
102 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP,
103 (OP_VARLEN|OP_NODEFAULT),
104 IP_MAX_OPT_LENGTH + IP_ADDR_LEN, -1 /* not initialized */ },
105
106 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
107 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
108 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
109 { IP_RECVOPTS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
110 { IP_RECVDSTADDR, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0
111 },
112 { IP_RECVIF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
113 { IP_RECVSLLA, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
114 { IP_RECVTTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int),
115 0 },
116 { IP_MULTICAST_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0,
117 sizeof (struct in_addr), 0 /* INADDR_ANY */ },
118
119 { IP_MULTICAST_LOOP, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_DEF_FN,
120 sizeof (uchar_t), -1 /* not initialized */},
121
122 { IP_MULTICAST_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_DEF_FN,
123 sizeof (uchar_t), -1 /* not initialized */ },
124
125 { IP_ADD_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT,
126 sizeof (struct ip_mreq), -1 /* not initialized */ },
127
128 { IP_DROP_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT,
129 sizeof (struct ip_mreq), -1 /* not initialized */ },
130
131 { IP_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT,
132 sizeof (struct ip_mreq_source), -1 /* not initialized */ },
133
134 { IP_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP, OP_NODEFAULT,
135 sizeof (struct ip_mreq_source), -1 /* not initialized */ },
136
137 { IP_ADD_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP,
138 OP_NODEFAULT, sizeof (struct ip_mreq_source), -1 },
139
140 { IP_DROP_SOURCE_MEMBERSHIP, IPPROTO_IP, OA_X, OA_X, OP_NP,
141 OP_NODEFAULT, sizeof (struct ip_mreq_source), -1 },
142
143 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_NODEFAULT,
144 sizeof (ipsec_req_t), -1 /* not initialized */ },
145
146 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0,
147 sizeof (int), 0 /* no ifindex */ },
148
149 { IP_DHCPINIT_IF, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0,
150 sizeof (int), 0 },
151
152 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0,
153 sizeof (int), 0 },
154
155 { IP_BROADCAST_TTL, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0, sizeof (uchar_t),
156 0 /* disabled */ },
157
158 { IP_PKTINFO, IPPROTO_IP, OA_RW, OA_RW, OP_NP,
159 (OP_NODEFAULT|OP_VARLEN),
160 sizeof (struct in_pktinfo), -1 /* not initialized */ },
161 { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0,
162 sizeof (in_addr_t), -1 /* not initialized */ },
163
164 { IP_DONTFRAG, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
165
166 { MCAST_JOIN_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP,
167 OP_NODEFAULT, sizeof (struct group_req),
168 -1 /* not initialized */ },
169 { MCAST_LEAVE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP,
170 OP_NODEFAULT, sizeof (struct group_req),
171 -1 /* not initialized */ },
172 { MCAST_BLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP,
173 OP_NODEFAULT, sizeof (struct group_source_req),
174 -1 /* not initialized */ },
175 { MCAST_UNBLOCK_SOURCE, IPPROTO_IP, OA_X, OA_X, OP_NP,
176 OP_NODEFAULT, sizeof (struct group_source_req),
177 -1 /* not initialized */ },
178 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP,
179 OP_NODEFAULT, sizeof (struct group_source_req),
180 -1 /* not initialized */ },
181 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IP, OA_X, OA_X, OP_NP,
182 OP_NODEFAULT, sizeof (struct group_source_req),
183 -1 /* not initialized */ },
184
185 { IPV6_MULTICAST_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
186 sizeof (int), 0 },
187
188 { IPV6_MULTICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
189 OP_DEF_FN, sizeof (int), -1 /* not initialized */ },
190
191 { IPV6_MULTICAST_LOOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
192 OP_DEF_FN, sizeof (int), -1 /* not initialized */},
193
194 { IPV6_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP, OP_NODEFAULT,
195 sizeof (struct ipv6_mreq), -1 /* not initialized */ },
196
197 { IPV6_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
198 OP_NODEFAULT,
199 sizeof (struct ipv6_mreq), -1 /* not initialized */ },
200
201 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN,
202 sizeof (int), -1 /* not initialized */ },
203
204 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
205 sizeof (int), 0 /* no ifindex */ },
206
207 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, 0,
208 sizeof (int), 0 },
209
210 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
211 (OP_NODEFAULT|OP_VARLEN),
212 sizeof (struct in6_pktinfo), -1 /* not initialized */ },
213 { IPV6_HOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
214 OP_NODEFAULT,
215 sizeof (int), -1 /* not initialized */ },
216 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
217 (OP_NODEFAULT|OP_VARLEN),
218 sizeof (sin6_t), -1 /* not initialized */ },
219 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
220 (OP_VARLEN|OP_NODEFAULT),
221 MAX_EHDR_LEN, -1 /* not initialized */ },
222 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
223 (OP_VARLEN|OP_NODEFAULT),
224 MAX_EHDR_LEN, -1 /* not initialized */ },
225 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
226 (OP_VARLEN|OP_NODEFAULT),
227 MAX_EHDR_LEN, -1 /* not initialized */ },
228 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
229 (OP_VARLEN|OP_NODEFAULT),
230 MAX_EHDR_LEN, -1 /* not initialized */ },
231 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
232 OP_NODEFAULT,
233 sizeof (int), -1 /* not initialized */ },
234 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
235 OP_NODEFAULT,
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), 0 },
241 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
242 sizeof (int), 0 },
243
244 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
245 sizeof (int), 0 },
246 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
247 sizeof (int), 0 },
248 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
249 sizeof (int), 0 },
250 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
251 sizeof (int), 0 },
252 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
253 sizeof (int), 0 },
254 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
255 sizeof (int), 0 },
256 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
257 sizeof (int), 0 },
258 { IPV6_RECVPATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
259 0, sizeof (int), 0 },
260 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
261 sizeof (int), 0 },
262
263 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_NODEFAULT,
264 sizeof (ipsec_req_t), -1 /* not initialized */ },
265 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
266 sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT },
267
268 { MCAST_JOIN_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
269 OP_NODEFAULT, sizeof (struct group_req),
270 -1 /* not initialized */ },
271 { MCAST_LEAVE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
272 OP_NODEFAULT, sizeof (struct group_req),
273 -1 /* not initialized */ },
274 { MCAST_BLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
275 OP_NODEFAULT, sizeof (struct group_source_req),
276 -1 /* not initialized */ },
277 { MCAST_UNBLOCK_SOURCE, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
278 OP_NODEFAULT, sizeof (struct group_source_req),
279 -1 /* not initialized */ },
280 { MCAST_JOIN_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
281 OP_NODEFAULT, sizeof (struct group_source_req),
282 -1 /* not initialized */ },
283 { MCAST_LEAVE_SOURCE_GROUP, IPPROTO_IPV6, OA_X, OA_X, OP_NP,
284 OP_NODEFAULT, sizeof (struct group_source_req),
285 -1 /* not initialized */ },
286
287 { UDP_ANONPRIVBIND, IPPROTO_UDP, OA_R, OA_RW, OP_PRIVPORT, 0,
288 sizeof (int), 0 },
289 { UDP_EXCLBIND, IPPROTO_UDP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0
290 },
291 { UDP_RCVHDR, IPPROTO_UDP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0
292 },
293 { UDP_NAT_T_ENDPOINT, IPPROTO_UDP, OA_RW, OA_RW, OP_PRIVPORT, 0, sizeof (int),
294 0 },
295 };
296
297 /*
298 * Table of all supported levels
299 * Note: Some levels (e.g. XTI_GENERIC) may be valid but may not have
300 * any supported options so we need this info separately.
301 *
302 * This is needed only for topmost tpi providers and is used only by
303 * XTI interfaces.
304 */
305 optlevel_t udp_valid_levels_arr[] = {
306 XTI_GENERIC,
307 SOL_SOCKET,
308 IPPROTO_UDP,
309 IPPROTO_IP,
310 IPPROTO_IPV6
311 };
312
313 #define UDP_VALID_LEVELS_CNT A_CNT(udp_valid_levels_arr)
314 #define UDP_OPT_ARR_CNT A_CNT(udp_opt_arr)
315
316 uint_t udp_max_optsize; /* initialized when UDP driver is loaded */
317
318 /*
319 * Initialize option database object for UDP
320 *
321 * This object represents database of options to search passed to
322 * {sock,tpi}optcom_req() interface routine to take care of option
323 * management and associated methods.
324 */
325
326 optdb_obj_t udp_opt_obj = {
327 udp_opt_default, /* UDP default value function pointer */
328 udp_tpi_opt_get, /* UDP get function pointer */
329 udp_tpi_opt_set, /* UDP set function pointer */
330 UDP_OPT_ARR_CNT, /* UDP option database count of entries */
331 udp_opt_arr, /* UDP option database */
332 UDP_VALID_LEVELS_CNT, /* UDP valid level count of entries */
333 udp_valid_levels_arr /* UDP valid level array */
334 };