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 /*
23 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /*
28 * Copyright 2012 David Hoeppner. All rights reserved.
29 */
30
31 /*
32 * This file contains functions related to getting and setting options
33 * thought the getsockopt and setsockopt socket functions.
34 */
35
36 #include <sys/types.h>
37 #include <sys/stream.h>
38 #define _SUN_TPI_VERSION 2
39 #include <sys/tihdr.h>
40 #include <sys/xti_xtiopt.h>
41 #include <sys/xti_inet.h>
42 #include <sys/policy.h>
43
44 #include <inet/common.h>
45 #include <inet/dccp_impl.h>
46 #include <inet/ip.h>
47 #include <inet/optcom.h>
48 #include <netinet/ip.h>
49
50 #include <sys/cmn_err.h>
51
52 static int dccp_opt_default(queue_t *, int, int, uchar_t *);
53
54 /*
55 * Supported options.
56 */
57 opdes_t dccp_opt_arr[] = {
58 { SO_DEBUG, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
59 };
60
61 /*
62 * Supported levels.
63 */
64 optlevel_t dccp_valid_levels_arr[] = {
65 SOL_SOCKET,
66 };
67
68 #define DCCP_OPT_ARR_CNT A_CNT(dccp_opt_arr)
69 #define DCCP_VALID_LEVELS_CNT A_CNT(dccp_valid_levels_arr)
70
71 uint_t dccp_max_optsize;
72
73 /*
74 * Options database object.
75 */
76 optdb_obj_t dccp_opt_obj = {
77 dccp_opt_default,
78 dccp_tpi_opt_get,
79 dccp_tpi_opt_set,
80 DCCP_OPT_ARR_CNT,
81 dccp_opt_arr,
82 DCCP_VALID_LEVELS_CNT,
83 dccp_valid_levels_arr,
84 };
85
86 /*
87 * Default value for certain options.
88 */
89 int
90 dccp_opt_default(queue_t *q, int level, int name, uchar_t *ptr)
91 {
92 dccp_stack_t *dccps = Q_TO_DCCP(q)->dccp_dccps;
93 int32_t *il = (int32_t *)ptr;
94
95 return (sizeof (int));
96 }
97
98 int
99 dccp_opt_get(conn_t *connp, int level, int name, uchar_t *ptr)
100 {
101 dccp_t *dccp = connp->conn_dccp;
102 conn_opt_arg_t coas;
103 int retval;
104
105 coas.coa_connp = connp;
106 coas.coa_ixa = connp->conn_ixa;
107 coas.coa_ipp = &connp->conn_xmit_ipp;
108 coas.coa_ancillary = B_FALSE;
109 coas.coa_changed = 0;
110
111 switch (level) {
112 case SOL_SOCKET:
113 break;
114 case IPPROTO_TCP:
115 break;
116 case IPPROTO_IP:
117 break;
118 case IPPROTO_IPV6:
119 break;
120 }
121
122 mutex_enter(&connp->conn_lock);
123 retval = conn_opt_get(&coas, level, name, ptr);
124 mutex_exit(&connp->conn_lock);
125
126 return (retval);
127 }
128
129 /* ARGSUSED */
130 int
131 dccp_opt_set(conn_t *connp, uint_t optset_context, int level, int name,
132 uint_t inlen, uchar_t *invalp, uint_t *outlenp, uchar_t *outvalp,
133 void *thisdg_attrs, cred_t *cr)
134 {
135 dccp_t *dccp = connp->conn_dccp;
136 dccp_stack_t *dccps = dccp->dccp_dccps;
137 conn_opt_arg_t coas;
138 int *i1 = (int *)invalp;
139 int error;
140
141 coas.coa_connp = connp;
142 coas.coa_ancillary = B_FALSE;
143 coas.coa_changed = 0;
144
145 error = conn_opt_set(&coas, level, name, inlen, invalp,
146 B_FALSE, cr);
147 if (error !=0) {
148 *outlenp = 0;
149 return (error);
150 }
151
152 return (0);
153 }